/node_modules/less-middleware/node_modules/less/test/browser/less.js
JavaScript | 8307 lines | 5978 code | 606 blank | 1723 comment | 1022 complexity | 4193e0e46c43a5d5941ac83d2944c318 MD5 | raw file
Possible License(s): Apache-2.0, MIT, BSD-3-Clause, MPL-2.0-no-copyleft-exception, 0BSD
- /*!
- * Less - Leaner CSS v1.7.4
- * http://lesscss.org
- *
- * Copyright (c) 2009-2014, Alexis Sellier <self@cloudhead.net>
- * Licensed under the Apache v2 License.
- *
- */
- /** * @license Apache v2
- */
- (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
- //
- // browser.js - client-side engine
- //
- /*global window, document, location */
- var logLevel = {
- debug: 3,
- info: 2,
- errors: 1,
- none: 0
- };
- var less;
- function log(str, level) {
- if (typeof(console) !== 'undefined' && less.logLevel >= level) {
- console.log('less: ' + str);
- }
- }
- /*
- TODO - options is now hidden - we should expose it on the less object, but not have it "as" the less object
- alternately even have it on environment
- e.g. less.environment.options.fileAsync = true;
- is it weird you do
- less = { fileAsync: true }
- then access as less.environment.options.fileAsync ?
- */
- var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol),
- options = window.less,
- environment = require("./environment/browser.js")(options, isFileProtocol, log, logLevel);
- window.less = less = require('./non-node-index.js')(environment);
- less.env = options.env || (location.hostname == '127.0.0.1' ||
- location.hostname == '0.0.0.0' ||
- location.hostname == 'localhost' ||
- (location.port &&
- location.port.length > 0) ||
- isFileProtocol ? 'development'
- : 'production');
- // The amount of logging in the javascript console.
- // 3 - Debug, information and errors
- // 2 - Information and errors
- // 1 - Errors
- // 0 - None
- // Defaults to 2
- less.logLevel = typeof(options.logLevel) != 'undefined' ? options.logLevel : (less.env === 'development' ? logLevel.debug : logLevel.errors);
- // Load styles asynchronously (default: false)
- //
- // This is set to `false` by default, so that the body
- // doesn't start loading before the stylesheets are parsed.
- // Setting this to `true` can result in flickering.
- //
- options.async = options.async || false;
- options.fileAsync = options.fileAsync || false;
- // Interval between watch polls
- less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
- //Setup user functions
- if (options.functions) {
- less.functions.functionRegistry.addMultiple(options.functions);
- }
- var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash);
- if (dumpLineNumbers) {
- less.dumpLineNumbers = dumpLineNumbers[1];
- }
- var typePattern = /^text\/(x-)?less$/;
- var cache = null;
- function extractId(href) {
- return href.replace(/^[a-z-]+:\/+?[^\/]+/, '' ) // Remove protocol & domain
- .replace(/^\//, '' ) // Remove root /
- .replace(/\.[a-zA-Z]+$/, '' ) // Remove simple extension
- .replace(/[^\.\w-]+/g, '-') // Replace illegal characters
- .replace(/\./g, ':'); // Replace dots with colons(for valid id)
- }
- function errorConsole(e, rootHref) {
- var template = '{line} {content}';
- var filename = e.filename || rootHref;
- var errors = [];
- var content = (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') +
- " in " + filename + " ";
- var errorline = function (e, i, classname) {
- if (e.extract[i] !== undefined) {
- errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1))
- .replace(/\{class\}/, classname)
- .replace(/\{content\}/, e.extract[i]));
- }
- };
- if (e.extract) {
- errorline(e, 0, '');
- errorline(e, 1, 'line');
- errorline(e, 2, '');
- content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n' +
- errors.join('\n');
- } else if (e.stack) {
- content += e.stack;
- }
- log(content, logLevel.errors);
- }
- function createCSS(styles, sheet, lastModified) {
- // Strip the query-string
- var href = sheet.href || '';
- // If there is no title set, use the filename, minus the extension
- var id = 'less:' + (sheet.title || extractId(href));
- // If this has already been inserted into the DOM, we may need to replace it
- var oldCss = document.getElementById(id);
- var keepOldCss = false;
- // Create a new stylesheet node for insertion or (if necessary) replacement
- var css = document.createElement('style');
- css.setAttribute('type', 'text/css');
- if (sheet.media) {
- css.setAttribute('media', sheet.media);
- }
- css.id = id;
- if (!css.styleSheet) {
- css.appendChild(document.createTextNode(styles));
- // If new contents match contents of oldCss, don't replace oldCss
- keepOldCss = (oldCss !== null && oldCss.childNodes.length > 0 && css.childNodes.length > 0 &&
- oldCss.firstChild.nodeValue === css.firstChild.nodeValue);
- }
- var head = document.getElementsByTagName('head')[0];
- // If there is no oldCss, just append; otherwise, only append if we need
- // to replace oldCss with an updated stylesheet
- if (oldCss === null || keepOldCss === false) {
- var nextEl = sheet && sheet.nextSibling || null;
- if (nextEl) {
- nextEl.parentNode.insertBefore(css, nextEl);
- } else {
- head.appendChild(css);
- }
- }
- if (oldCss && keepOldCss === false) {
- oldCss.parentNode.removeChild(oldCss);
- }
- // For IE.
- // This needs to happen *after* the style element is added to the DOM, otherwise IE 7 and 8 may crash.
- // See http://social.msdn.microsoft.com/Forums/en-US/7e081b65-878a-4c22-8e68-c10d39c2ed32/internet-explorer-crashes-appending-style-element-to-head
- if (css.styleSheet) {
- try {
- css.styleSheet.cssText = styles;
- } catch (e) {
- throw new(Error)("Couldn't reassign styleSheet.cssText.");
- }
- }
- // Don't update the local store if the file wasn't modified
- if (lastModified && cache) {
- log('saving ' + href + ' to cache.', logLevel.info);
- try {
- cache.setItem(href, styles);
- cache.setItem(href + ':timestamp', lastModified);
- } catch(e) {
- //TODO - could do with adding more robust error handling
- log('failed to save', logLevel.errors);
- }
- }
- }
- function postProcessCSS(styles) {
- if (options.postProcessor && typeof options.postProcessor === 'function') {
- styles = options.postProcessor.call(styles, styles) || styles;
- }
- return styles;
- }
- function errorHTML(e, rootHref) {
- var id = 'less-error-message:' + extractId(rootHref || "");
- var template = '<li><label>{line}</label><pre class="{class}">{content}</pre></li>';
- var elem = document.createElement('div'), timer, content, errors = [];
- var filename = e.filename || rootHref;
- var filenameNoPath = filename.match(/([^\/]+(\?.*)?)$/)[1];
- elem.id = id;
- elem.className = "less-error-message";
- content = '<h3>' + (e.type || "Syntax") + "Error: " + (e.message || 'There is an error in your .less file') +
- '</h3>' + '<p>in <a href="' + filename + '">' + filenameNoPath + "</a> ";
- var errorline = function (e, i, classname) {
- if (e.extract[i] !== undefined) {
- errors.push(template.replace(/\{line\}/, (parseInt(e.line, 10) || 0) + (i - 1))
- .replace(/\{class\}/, classname)
- .replace(/\{content\}/, e.extract[i]));
- }
- };
- if (e.extract) {
- errorline(e, 0, '');
- errorline(e, 1, 'line');
- errorline(e, 2, '');
- content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
- '<ul>' + errors.join('') + '</ul>';
- } else if (e.stack) {
- content += '<br/>' + e.stack.split('\n').slice(1).join('<br/>');
- }
- elem.innerHTML = content;
- // CSS for error messages
- createCSS([
- '.less-error-message ul, .less-error-message li {',
- 'list-style-type: none;',
- 'margin-right: 15px;',
- 'padding: 4px 0;',
- 'margin: 0;',
- '}',
- '.less-error-message label {',
- 'font-size: 12px;',
- 'margin-right: 15px;',
- 'padding: 4px 0;',
- 'color: #cc7777;',
- '}',
- '.less-error-message pre {',
- 'color: #dd6666;',
- 'padding: 4px 0;',
- 'margin: 0;',
- 'display: inline-block;',
- '}',
- '.less-error-message pre.line {',
- 'color: #ff0000;',
- '}',
- '.less-error-message h3 {',
- 'font-size: 20px;',
- 'font-weight: bold;',
- 'padding: 15px 0 5px 0;',
- 'margin: 0;',
- '}',
- '.less-error-message a {',
- 'color: #10a',
- '}',
- '.less-error-message .error {',
- 'color: red;',
- 'font-weight: bold;',
- 'padding-bottom: 2px;',
- 'border-bottom: 1px dashed red;',
- '}'
- ].join('\n'), { title: 'error-message' });
- elem.style.cssText = [
- "font-family: Arial, sans-serif",
- "border: 1px solid #e00",
- "background-color: #eee",
- "border-radius: 5px",
- "-webkit-border-radius: 5px",
- "-moz-border-radius: 5px",
- "color: #e00",
- "padding: 15px",
- "margin-bottom: 15px"
- ].join(';');
- if (less.env == 'development') {
- timer = setInterval(function () {
- if (document.body) {
- if (document.getElementById(id)) {
- document.body.replaceChild(elem, document.getElementById(id));
- } else {
- document.body.insertBefore(elem, document.body.firstChild);
- }
- clearInterval(timer);
- }
- }, 10);
- }
- }
- function error(e, rootHref) {
- if (!options.errorReporting || options.errorReporting === "html") {
- errorHTML(e, rootHref);
- } else if (options.errorReporting === "console") {
- errorConsole(e, rootHref);
- } else if (typeof options.errorReporting === 'function') {
- options.errorReporting("add", e, rootHref);
- }
- }
- function removeErrorHTML(path) {
- var node = document.getElementById('less-error-message:' + extractId(path));
- if (node) {
- node.parentNode.removeChild(node);
- }
- }
- function removeErrorConsole(path) {
- //no action
- }
- function removeError(path) {
- if (!options.errorReporting || options.errorReporting === "html") {
- removeErrorHTML(path);
- } else if (options.errorReporting === "console") {
- removeErrorConsole(path);
- } else if (typeof options.errorReporting === 'function') {
- options.errorReporting("remove", path);
- }
- }
- function loadStyles(modifyVars) {
- var styles = document.getElementsByTagName('style'),
- style;
- for (var i = 0; i < styles.length; i++) {
- style = styles[i];
- if (style.type.match(typePattern)) {
- var env = new less.contexts.parseEnv(options),
- lessText = style.innerHTML || '';
- env.filename = document.location.href.replace(/#.*$/, '');
- if (modifyVars || options.globalVars) {
- env.useFileCache = true;
- }
- /*jshint loopfunc:true */
- // use closure to store current value of i
- var callback = (function(style) {
- return function (e, cssAST) {
- if (e) {
- return error(e, "inline");
- }
- var css = cssAST.toCSS(options);
- style.type = 'text/css';
- if (style.styleSheet) {
- style.styleSheet.cssText = css;
- } else {
- style.innerHTML = css;
- }
- };
- })(style);
- new(less.Parser)(env).parse(lessText, callback, {globalVars: options.globalVars, modifyVars: modifyVars});
- }
- }
- }
- function loadStyleSheet(sheet, callback, reload, remaining, modifyVars) {
- var env = new less.contexts.parseEnv(options);
- env.mime = sheet.type;
- if (modifyVars || options.globalVars) {
- env.useFileCache = true;
- }
- less.environment.loadFile(env, sheet.href, null, function loadInitialFileCallback(e, data, path, webInfo) {
- var newFileInfo = {
- currentDirectory: less.environment.getPath(env, path),
- filename: path,
- rootFilename: path,
- relativeUrls: env.relativeUrls};
- newFileInfo.entryPath = newFileInfo.currentDirectory;
- newFileInfo.rootpath = env.rootpath || newFileInfo.currentDirectory;
- if (webInfo) {
- webInfo.remaining = remaining;
- var css = cache && cache.getItem(path),
- timestamp = cache && cache.getItem(path + ':timestamp');
- if (!reload && timestamp && webInfo.lastModified &&
- (new(Date)(webInfo.lastModified).valueOf() ===
- new(Date)(timestamp).valueOf())) {
- // Use local copy
- createCSS(css, sheet);
- webInfo.local = true;
- callback(null, null, data, sheet, webInfo, path);
- return;
- }
- }
- //TODO add tests around how this behaves when reloading
- removeError(path);
- if (data) {
- env.currentFileInfo = newFileInfo;
- new(less.Parser)(env).parse(data, function (e, root) {
- if (e) { return callback(e, null, null, sheet); }
- try {
- callback(e, root, data, sheet, webInfo, path);
- } catch (e) {
- callback(e, null, null, sheet);
- }
- }, {modifyVars: modifyVars, globalVars: options.globalVars});
- } else {
- callback(e, null, null, sheet, webInfo, path);
- }
- }, env, modifyVars);
- }
- function loadStyleSheets(callback, reload, modifyVars) {
- for (var i = 0; i < less.sheets.length; i++) {
- loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1), modifyVars);
- }
- }
- function initRunningMode(){
- if (less.env === 'development') {
- less.watchTimer = setInterval(function () {
- if (less.watchMode) {
- loadStyleSheets(function (e, root, _, sheet, env) {
- if (e) {
- error(e, sheet.href);
- } else if (root) {
- var styles = root.toCSS(less);
- styles = postProcessCSS(styles);
- createCSS(styles, sheet, env.lastModified);
- }
- });
- }
- }, options.poll);
- }
- }
- //
- // Watch mode
- //
- less.watch = function () {
- if (!less.watchMode ){
- less.env = 'development';
- initRunningMode();
- }
- this.watchMode = true;
- return true;
- };
- less.unwatch = function () {clearInterval(less.watchTimer); this.watchMode = false; return false; };
- if (/!watch/.test(location.hash)) {
- less.watch();
- }
- if (less.env != 'development') {
- try {
- cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
- } catch (_) {}
- }
- //
- // Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
- //
- var links = document.getElementsByTagName('link');
- less.sheets = [];
- for (var i = 0; i < links.length; i++) {
- if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
- (links[i].type.match(typePattern)))) {
- less.sheets.push(links[i]);
- }
- }
- //
- // With this function, it's possible to alter variables and re-render
- // CSS without reloading less-files
- //
- less.modifyVars = function(record) {
- less.refresh(false, record);
- };
- less.refresh = function (reload, modifyVars) {
- var startTime, endTime;
- startTime = endTime = new Date();
- loadStyleSheets(function (e, root, _, sheet, env) {
- if (e) {
- return error(e, sheet.href);
- }
- if (env.local) {
- log("loading " + sheet.href + " from cache.", logLevel.info);
- } else {
- log("parsed " + sheet.href + " successfully.", logLevel.debug);
- var styles = root.toCSS(options);
- styles = postProcessCSS(styles);
- createCSS(styles, sheet, env.lastModified);
- }
- log("css for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms', logLevel.info);
- if (env.remaining === 0) {
- log("less has finished. css generated in " + (new Date() - startTime) + 'ms', logLevel.info);
- }
- endTime = new Date();
- }, reload, modifyVars);
- loadStyles(modifyVars);
- };
- less.refreshStyles = loadStyles;
- less.refresh(less.env === 'development');
- },{"./environment/browser.js":6,"./non-node-index.js":20}],2:[function(require,module,exports){
- var contexts = {};
- module.exports = contexts;
- var copyFromOriginal = function copyFromOriginal(original, destination, propertiesToCopy) {
- if (!original) { return; }
- for(var i = 0; i < propertiesToCopy.length; i++) {
- if (original.hasOwnProperty(propertiesToCopy[i])) {
- destination[propertiesToCopy[i]] = original[propertiesToCopy[i]];
- }
- }
- };
- var parseCopyProperties = [
- 'paths', // option - unmodified - paths to search for imports on
- 'files', // list of files that have been imported, used for import-once
- 'contents', // map - filename to contents of all the files
- 'contentsIgnoredChars', // map - filename to lines at the begining of each file to ignore
- 'relativeUrls', // option - whether to adjust URL's to be relative
- 'rootpath', // option - rootpath to append to URL's
- 'strictImports', // option -
- 'insecure', // option - whether to allow imports from insecure ssl hosts
- 'dumpLineNumbers', // option - whether to dump line numbers
- 'compress', // option - whether to compress
- 'processImports', // option - whether to process imports. if false then imports will not be imported
- 'syncImport', // option - whether to import synchronously
- 'chunkInput', // option - whether to chunk input. more performant but causes parse issues.
- 'mime', // browser only - mime type for sheet import
- 'useFileCache', // browser only - whether to use the per file session cache
- 'currentFileInfo' // information about the current file - for error reporting and importing and making urls relative etc.
- ];
- //currentFileInfo = {
- // 'relativeUrls' - option - whether to adjust URL's to be relative
- // 'filename' - full resolved filename of current file
- // 'rootpath' - path to append to normal URLs for this node
- // 'currentDirectory' - path to the current file, absolute
- // 'rootFilename' - filename of the base file
- // 'entryPath' - absolute path to the entry file
- // 'reference' - whether the file should not be output and only output parts that are referenced
- contexts.parseEnv = function(options) {
- copyFromOriginal(options, this, parseCopyProperties);
- if (!this.contents) { this.contents = {}; }
- if (!this.contentsIgnoredChars) { this.contentsIgnoredChars = {}; }
- if (!this.files) { this.files = {}; }
- if (typeof this.paths === "string") { this.paths = [this.paths]; }
- if (!this.currentFileInfo) {
- var filename = (options && options.filename) || "input";
- var entryPath = filename.replace(/[^\/\\]*$/, "");
- if (options) {
- options.filename = null;
- }
- this.currentFileInfo = {
- filename: filename,
- relativeUrls: this.relativeUrls,
- rootpath: (options && options.rootpath) || "",
- currentDirectory: entryPath,
- entryPath: entryPath,
- rootFilename: filename
- };
- }
- };
- var evalCopyProperties = [
- 'silent', // whether to swallow errors and warnings
- 'verbose', // whether to log more activity
- 'compress', // whether to compress
- 'yuicompress', // whether to compress with the outside tool yui compressor
- 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri)
- 'strictMath', // whether math has to be within parenthesis
- 'strictUnits', // whether units need to evaluate correctly
- 'cleancss', // whether to compress with clean-css
- 'sourceMap', // whether to output a source map
- 'importMultiple', // whether we are currently importing multiple copies
- 'urlArgs', // whether to add args into url tokens
- 'javascriptEnabled'// option - whether JavaScript is enabled. if undefined, defaults to true
- ];
- contexts.evalEnv = function(options, frames) {
- copyFromOriginal(options, this, evalCopyProperties);
- this.frames = frames || [];
- };
- contexts.evalEnv.prototype.inParenthesis = function () {
- if (!this.parensStack) {
- this.parensStack = [];
- }
- this.parensStack.push(true);
- };
- contexts.evalEnv.prototype.outOfParenthesis = function () {
- this.parensStack.pop();
- };
- contexts.evalEnv.prototype.isMathOn = function () {
- return this.strictMath ? (this.parensStack && this.parensStack.length) : true;
- };
- contexts.evalEnv.prototype.isPathRelative = function (path) {
- return !/^(?:[a-z-]+:|\/)/.test(path);
- };
- contexts.evalEnv.prototype.normalizePath = function( path ) {
- var
- segments = path.split("/").reverse(),
- segment;
- path = [];
- while (segments.length !== 0 ) {
- segment = segments.pop();
- switch( segment ) {
- case ".":
- break;
- case "..":
- if ((path.length === 0) || (path[path.length - 1] === "..")) {
- path.push( segment );
- } else {
- path.pop();
- }
- break;
- default:
- path.push( segment );
- break;
- }
- }
- return path.join("/");
- };
- //todo - do the same for the toCSS env
- //tree.toCSSEnv = function (options) {
- //};
- },{}],3:[function(require,module,exports){
- module.exports = {
- 'aliceblue':'#f0f8ff',
- 'antiquewhite':'#faebd7',
- 'aqua':'#00ffff',
- 'aquamarine':'#7fffd4',
- 'azure':'#f0ffff',
- 'beige':'#f5f5dc',
- 'bisque':'#ffe4c4',
- 'black':'#000000',
- 'blanchedalmond':'#ffebcd',
- 'blue':'#0000ff',
- 'blueviolet':'#8a2be2',
- 'brown':'#a52a2a',
- 'burlywood':'#deb887',
- 'cadetblue':'#5f9ea0',
- 'chartreuse':'#7fff00',
- 'chocolate':'#d2691e',
- 'coral':'#ff7f50',
- 'cornflowerblue':'#6495ed',
- 'cornsilk':'#fff8dc',
- 'crimson':'#dc143c',
- 'cyan':'#00ffff',
- 'darkblue':'#00008b',
- 'darkcyan':'#008b8b',
- 'darkgoldenrod':'#b8860b',
- 'darkgray':'#a9a9a9',
- 'darkgrey':'#a9a9a9',
- 'darkgreen':'#006400',
- 'darkkhaki':'#bdb76b',
- 'darkmagenta':'#8b008b',
- 'darkolivegreen':'#556b2f',
- 'darkorange':'#ff8c00',
- 'darkorchid':'#9932cc',
- 'darkred':'#8b0000',
- 'darksalmon':'#e9967a',
- 'darkseagreen':'#8fbc8f',
- 'darkslateblue':'#483d8b',
- 'darkslategray':'#2f4f4f',
- 'darkslategrey':'#2f4f4f',
- 'darkturquoise':'#00ced1',
- 'darkviolet':'#9400d3',
- 'deeppink':'#ff1493',
- 'deepskyblue':'#00bfff',
- 'dimgray':'#696969',
- 'dimgrey':'#696969',
- 'dodgerblue':'#1e90ff',
- 'firebrick':'#b22222',
- 'floralwhite':'#fffaf0',
- 'forestgreen':'#228b22',
- 'fuchsia':'#ff00ff',
- 'gainsboro':'#dcdcdc',
- 'ghostwhite':'#f8f8ff',
- 'gold':'#ffd700',
- 'goldenrod':'#daa520',
- 'gray':'#808080',
- 'grey':'#808080',
- 'green':'#008000',
- 'greenyellow':'#adff2f',
- 'honeydew':'#f0fff0',
- 'hotpink':'#ff69b4',
- 'indianred':'#cd5c5c',
- 'indigo':'#4b0082',
- 'ivory':'#fffff0',
- 'khaki':'#f0e68c',
- 'lavender':'#e6e6fa',
- 'lavenderblush':'#fff0f5',
- 'lawngreen':'#7cfc00',
- 'lemonchiffon':'#fffacd',
- 'lightblue':'#add8e6',
- 'lightcoral':'#f08080',
- 'lightcyan':'#e0ffff',
- 'lightgoldenrodyellow':'#fafad2',
- 'lightgray':'#d3d3d3',
- 'lightgrey':'#d3d3d3',
- 'lightgreen':'#90ee90',
- 'lightpink':'#ffb6c1',
- 'lightsalmon':'#ffa07a',
- 'lightseagreen':'#20b2aa',
- 'lightskyblue':'#87cefa',
- 'lightslategray':'#778899',
- 'lightslategrey':'#778899',
- 'lightsteelblue':'#b0c4de',
- 'lightyellow':'#ffffe0',
- 'lime':'#00ff00',
- 'limegreen':'#32cd32',
- 'linen':'#faf0e6',
- 'magenta':'#ff00ff',
- 'maroon':'#800000',
- 'mediumaquamarine':'#66cdaa',
- 'mediumblue':'#0000cd',
- 'mediumorchid':'#ba55d3',
- 'mediumpurple':'#9370d8',
- 'mediumseagreen':'#3cb371',
- 'mediumslateblue':'#7b68ee',
- 'mediumspringgreen':'#00fa9a',
- 'mediumturquoise':'#48d1cc',
- 'mediumvioletred':'#c71585',
- 'midnightblue':'#191970',
- 'mintcream':'#f5fffa',
- 'mistyrose':'#ffe4e1',
- 'moccasin':'#ffe4b5',
- 'navajowhite':'#ffdead',
- 'navy':'#000080',
- 'oldlace':'#fdf5e6',
- 'olive':'#808000',
- 'olivedrab':'#6b8e23',
- 'orange':'#ffa500',
- 'orangered':'#ff4500',
- 'orchid':'#da70d6',
- 'palegoldenrod':'#eee8aa',
- 'palegreen':'#98fb98',
- 'paleturquoise':'#afeeee',
- 'palevioletred':'#d87093',
- 'papayawhip':'#ffefd5',
- 'peachpuff':'#ffdab9',
- 'peru':'#cd853f',
- 'pink':'#ffc0cb',
- 'plum':'#dda0dd',
- 'powderblue':'#b0e0e6',
- 'purple':'#800080',
- 'red':'#ff0000',
- 'rosybrown':'#bc8f8f',
- 'royalblue':'#4169e1',
- 'saddlebrown':'#8b4513',
- 'salmon':'#fa8072',
- 'sandybrown':'#f4a460',
- 'seagreen':'#2e8b57',
- 'seashell':'#fff5ee',
- 'sienna':'#a0522d',
- 'silver':'#c0c0c0',
- 'skyblue':'#87ceeb',
- 'slateblue':'#6a5acd',
- 'slategray':'#708090',
- 'slategrey':'#708090',
- 'snow':'#fffafa',
- 'springgreen':'#00ff7f',
- 'steelblue':'#4682b4',
- 'tan':'#d2b48c',
- 'teal':'#008080',
- 'thistle':'#d8bfd8',
- 'tomato':'#ff6347',
- 'turquoise':'#40e0d0',
- 'violet':'#ee82ee',
- 'wheat':'#f5deb3',
- 'white':'#ffffff',
- 'whitesmoke':'#f5f5f5',
- 'yellow':'#ffff00',
- 'yellowgreen':'#9acd32'
- };
- },{}],4:[function(require,module,exports){
- module.exports = {
- colors: require("./colors.js"),
- unitConversions: require("./unit-conversions.js")
- };
- },{"./colors.js":3,"./unit-conversions.js":5}],5:[function(require,module,exports){
- module.exports = {
- length: {
- 'm': 1,
- 'cm': 0.01,
- 'mm': 0.001,
- 'in': 0.0254,
- 'px': 0.0254 / 96,
- 'pt': 0.0254 / 72,
- 'pc': 0.0254 / 72 * 12
- },
- duration: {
- 's': 1,
- 'ms': 0.001
- },
- angle: {
- 'rad': 1/(2*Math.PI),
- 'deg': 1/360,
- 'grad': 1/400,
- 'turn': 1
- }
- };
- },{}],6:[function(require,module,exports){
- /*global window, XMLHttpRequest */
- module.exports = function(options, isFileProtocol, log, logLevel) {
- var fileCache = {};
- //TODOS - move log somewhere. pathDiff and doing something similar in node. use pathDiff in the other browser file for the initial load
- // isFileProtocol is global
- function getXMLHttpRequest() {
- if (window.XMLHttpRequest && (window.location.protocol !== "file:" || !("ActiveXObject" in window))) {
- return new XMLHttpRequest();
- } else {
- try {
- /*global ActiveXObject */
- return new ActiveXObject("Microsoft.XMLHTTP");
- } catch (e) {
- log("browser doesn't support AJAX.", logLevel.errors);
- return null;
- }
- }
- }
- return {
- // make generic but overriddable
- warn: function warn(env, msg) {
- console.warn(msg);
- },
- // make generic but overriddable
- getPath: function getPath(env, filename) {
- var j = filename.lastIndexOf('/');
- if (j < 0) {
- j = filename.lastIndexOf('\\');
- }
- if (j < 0) {
- return "";
- }
- return filename.slice(0, j + 1);
- },
- // make generic but overriddable
- isPathAbsolute: function isPathAbsolute(env, filename) {
- return /^(?:[a-z-]+:|\/|\\)/i.test(filename);
- },
- alwaysMakePathsAbsolute: function alwaysMakePathsAbsolute() {
- return true;
- },
- getCleanCSS: function () {
- },
- supportsDataURI: function() {
- return false;
- },
- pathDiff: function pathDiff(url, baseUrl) {
- // diff between two paths to create a relative path
- var urlParts = this.extractUrlParts(url),
- baseUrlParts = this.extractUrlParts(baseUrl),
- i, max, urlDirectories, baseUrlDirectories, diff = "";
- if (urlParts.hostPart !== baseUrlParts.hostPart) {
- return "";
- }
- max = Math.max(baseUrlParts.directories.length, urlParts.directories.length);
- for(i = 0; i < max; i++) {
- if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; }
- }
- baseUrlDirectories = baseUrlParts.directories.slice(i);
- urlDirectories = urlParts.directories.slice(i);
- for(i = 0; i < baseUrlDirectories.length-1; i++) {
- diff += "../";
- }
- for(i = 0; i < urlDirectories.length-1; i++) {
- diff += urlDirectories[i] + "/";
- }
- return diff;
- },
- join: function join(basePath, laterPath) {
- if (!basePath) {
- return laterPath;
- }
- return this.extractUrlParts(laterPath, basePath).path;
- },
- // helper function, not part of API
- extractUrlParts: function extractUrlParts(url, baseUrl) {
- // urlParts[1] = protocol&hostname || /
- // urlParts[2] = / if path relative to host base
- // urlParts[3] = directories
- // urlParts[4] = filename
- // urlParts[5] = parameters
- var urlPartsRegex = /^((?:[a-z-]+:)?\/+?(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i,
- urlParts = url.match(urlPartsRegex),
- returner = {}, directories = [], i, baseUrlParts;
- if (!urlParts) {
- throw new Error("Could not parse sheet href - '"+url+"'");
- }
- // Stylesheets in IE don't always return the full path
- if (!urlParts[1] || urlParts[2]) {
- baseUrlParts = baseUrl.match(urlPartsRegex);
- if (!baseUrlParts) {
- throw new Error("Could not parse page url - '"+baseUrl+"'");
- }
- urlParts[1] = urlParts[1] || baseUrlParts[1] || "";
- if (!urlParts[2]) {
- urlParts[3] = baseUrlParts[3] + urlParts[3];
- }
- }
- if (urlParts[3]) {
- directories = urlParts[3].replace(/\\/g, "/").split("/");
- // extract out . before .. so .. doesn't absorb a non-directory
- for(i = 0; i < directories.length; i++) {
- if (directories[i] === ".") {
- directories.splice(i, 1);
- i -= 1;
- }
- }
- for(i = 0; i < directories.length; i++) {
- if (directories[i] === ".." && i > 0) {
- directories.splice(i-1, 2);
- i -= 2;
- }
- }
- }
- returner.hostPart = urlParts[1];
- returner.directories = directories;
- returner.path = urlParts[1] + directories.join("/");
- returner.fileUrl = returner.path + (urlParts[4] || "");
- returner.url = returner.fileUrl + (urlParts[5] || "");
- return returner;
- },
- doXHR: function doXHR(url, type, callback, errback) {
- var xhr = getXMLHttpRequest();
- var async = isFileProtocol ? options.fileAsync : options.async;
- if (typeof(xhr.overrideMimeType) === 'function') {
- xhr.overrideMimeType('text/css');
- }
- log("XHR: Getting '" + url + "'", logLevel.debug);
- xhr.open('GET', url, async);
- xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
- xhr.send(null);
- function handleResponse(xhr, callback, errback) {
- if (xhr.status >= 200 && xhr.status < 300) {
- callback(xhr.responseText,
- xhr.getResponseHeader("Last-Modified"));
- } else if (typeof(errback) === 'function') {
- errback(xhr.status, url);
- }
- }
- if (isFileProtocol && !options.fileAsync) {
- if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
- callback(xhr.responseText);
- } else {
- errback(xhr.status, url);
- }
- } else if (async) {
- xhr.onreadystatechange = function () {
- if (xhr.readyState == 4) {
- handleResponse(xhr, callback, errback);
- }
- };
- } else {
- handleResponse(xhr, callback, errback);
- }
- },
- loadFile: function loadFile(env, filename, currentDirectory, callback) {
- if (currentDirectory && !this.isPathAbsolute(env, filename)) {
- filename = currentDirectory + filename;
- }
- // sheet may be set to the stylesheet for the initial load or a collection of properties including
- // some env variables for imports
- var hrefParts = this.extractUrlParts(filename, window.location.href);
- var href = hrefParts.url;
- if (env.useFileCache && fileCache[href]) {
- try {
- var lessText = fileCache[href];
- callback(null, lessText, href, { lastModified: new Date() });
- } catch (e) {
- callback(e, null, href);
- }
- return;
- }
- this.doXHR(href, env.mime, function doXHRCallback(data, lastModified) {
- // per file cache
- fileCache[href] = data;
- // Use remote copy (re-parse)
- callback(null, data, href, { lastModified: lastModified });
- }, function doXHRError(status, url) {
- callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")" }, null, href);
- });
- }
- };
- };
- },{}],7:[function(require,module,exports){
- var Color = require("../tree/color.js"),
- functionRegistry = require("./function-registry.js");
- // Color Blending
- // ref: http://www.w3.org/TR/compositing-1
- function colorBlend(mode, color1, color2) {
- var ab = color1.alpha, cb, // backdrop
- as = color2.alpha, cs, // source
- ar, cr, r = []; // result
- ar = as + ab * (1 - as);
- for (var i = 0; i < 3; i++) {
- cb = color1.rgb[i] / 255;
- cs = color2.rgb[i] / 255;
- cr = mode(cb, cs);
- if (ar) {
- cr = (as * cs + ab * (cb -
- as * (cb + cs - cr))) / ar;
- }
- r[i] = cr * 255;
- }
- return new(Color)(r, ar);
- }
- var colorBlendModeFunctions = {
- multiply: function(cb, cs) {
- return cb * cs;
- },
- screen: function(cb, cs) {
- return cb + cs - cb * cs;
- },
- overlay: function(cb, cs) {
- cb *= 2;
- return (cb <= 1)
- ? colorBlendModeFunctions.multiply(cb, cs)
- : colorBlendModeFunctions.screen(cb - 1, cs);
- },
- softlight: function(cb, cs) {
- var d = 1, e = cb;
- if (cs > 0.5) {
- e = 1;
- d = (cb > 0.25) ? Math.sqrt(cb)
- : ((16 * cb - 12) * cb + 4) * cb;
- }
- return cb - (1 - 2 * cs) * e * (d - cb);
- },
- hardlight: function(cb, cs) {
- return colorBlendModeFunctions.overlay(cs, cb);
- },
- difference: function(cb, cs) {
- return Math.abs(cb - cs);
- },
- exclusion: function(cb, cs) {
- return cb + cs - 2 * cb * cs;
- },
- // non-w3c functions:
- average: function(cb, cs) {
- return (cb + cs) / 2;
- },
- negation: function(cb, cs) {
- return 1 - Math.abs(cb + cs - 1);
- }
- };
- for (var f in colorBlendModeFunctions) {
- if (colorBlendModeFunctions.hasOwnProperty(f)) {
- colorBlend[f] = colorBlend.bind(null, colorBlendModeFunctions[f]);
- }
- }
- functionRegistry.addMultiple(colorBlend);
- },{"../tree/color.js":31,"./function-registry.js":12}],8:[function(require,module,exports){
- var Dimension = require("../tree/dimension.js"),
- Color = require("../tree/color.js"),
- Quoted = require("../tree/quoted.js"),
- Anonymous = require("../tree/anonymous.js"),
- functionRegistry = require("./function-registry.js"),
- colorFunctions;
- function clamp(val) {
- return Math.min(1, Math.max(0, val));
- }
- function hsla(color) {
- return colorFunctions.hsla(color.h, color.s, color.l, color.a);
- }
- function number(n) {
- if (n instanceof Dimension) {
- return parseFloat(n.unit.is('%') ? n.value / 100 : n.value);
- } else if (typeof(n) === 'number') {
- return n;
- } else {
- throw {
- error: "RuntimeError",
- message: "color functions take numbers as parameters"
- };
- }
- }
- function scaled(n, size) {
- if (n instanceof Dimension && n.unit.is('%')) {
- return parseFloat(n.value * size / 100);
- } else {
- return number(n);
- }
- }
- colorFunctions = {
- rgb: function (r, g, b) {
- return colorFunctions.rgba(r, g, b, 1.0);
- },
- rgba: function (r, g, b, a) {
- var rgb = [r, g, b].map(function (c) { return scaled(c, 255); });
- a = number(a);
- return new(Color)(rgb, a);
- },
- hsl: function (h, s, l) {
- return colorFunctions.hsla(h, s, l, 1.0);
- },
- hsla: function (h, s, l, a) {
- function hue(h) {
- h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
- if (h * 6 < 1) { return m1 + (m2 - m1) * h * 6; }
- else if (h * 2 < 1) { return m2; }
- else if (h * 3 < 2) { return m1 + (m2 - m1) * (2/3 - h) * 6; }
- else { return m1; }
- }
- h = (number(h) % 360) / 360;
- s = clamp(number(s)); l = clamp(number(l)); a = clamp(number(a));
- var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
- var m1 = l * 2 - m2;
- return colorFunctions.rgba(hue(h + 1/3) * 255,
- hue(h) * 255,
- hue(h - 1/3) * 255,
- a);
- },
- hsv: function(h, s, v) {
- return colorFunctions.hsva(h, s, v, 1.0);
- },
- hsva: function(h, s, v, a) {
- h = ((number(h) % 360) / 360) * 360;
- s = number(s); v = number(v); a = number(a);
- var i, f;
- i = Math.floor((h / 60) % 6);
- f = (h / 60) - i;
- var vs = [v,
- v * (1 - s),
- v * (1 - f * s),
- v * (1 - (1 - f) * s)];
- var perm = [[0, 3, 1],
- [2, 0, 1],
- [1, 0, 3],
- [1, 2, 0],
- [3, 1, 0],
- [0, 1, 2]];
- return colorFunctions.rgba(vs[perm[i][0]] * 255,
- vs[perm[i][1]] * 255,
- vs[perm[i][2]] * 255,
- a);
- },
- hue: function (color) {
- return new(Dimension)(color.toHSL().h);
- },
- saturation: function (color) {
- return new(Dimension)(color.toHSL().s * 100, '%');
- },
- lightness: function (color) {
- return new(Dimension)(color.toHSL().l * 100, '%');
- },
- hsvhue: function(color) {
- return new(Dimension)(color.toHSV().h);
- },
- hsvsaturation: function (color) {
- return new(Dimension)(color.toHSV().s * 100, '%');
- },
- hsvvalue: function (color) {
- return new(Dimension)(color.toHSV().v * 100, '%');
- },
- red: function (color) {
- return new(Dimension)(color.rgb[0]);
- },
- green: function (color) {
- return new(Dimension)(color.rgb[1]);
- },
- blue: function (color) {
- return new(Dimension)(color.rgb[2]);
- },
- alpha: function (color) {
- return new(Dimension)(color.toHSL().a);
- },
- luma: function (color) {
- return new(Dimension)(color.luma() * color.alpha * 100, '%');
- },
- luminance: function (color) {
- var luminance =
- (0.2126 * color.rgb[0] / 255)
- + (0.7152 * color.rgb[1] / 255)
- + (0.0722 * color.rgb[2] / 255);
- return new(Dimension)(luminance * color.alpha * 100, '%');
- },
- saturate: function (color, amount) {
- // filter: saturate(3.2);
- // should be kept as is, so check for color
- if (!color.rgb) {
- return null;
- }
- var hsl = color.toHSL();
- hsl.s += amount.value / 100;
- hsl.s = clamp(hsl.s);
- return hsla(hsl);
- },
- desaturate: function (color, amount) {
- var hsl = color.toHSL();
- hsl.s -= amount.value / 100;
- hsl.s = clamp(hsl.s);
- return hsla(hsl);
- },
- lighten: function (color, amount) {
- var hsl = color.toHSL();
- hsl.l += amount.value / 100;
- hsl.l = clamp(hsl.l);
- return hsla(hsl);
- },
- darken: function (color, amount) {
- var hsl = color.toHSL();
- hsl.l -= amount.value / 100;
- hsl.l = clamp(hsl.l);
- return hsla(hsl);
- },
- fadein: function (color, amount) {
- var hsl = color.toHSL();
- hsl.a += amount.value / 100;
- hsl.a = clamp(hsl.a);
- return hsla(hsl);
- },
- fadeout: function (color, amount) {
- var hsl = color.toHSL();
- hsl.a -= amount.value / 100;
- hsl.a = clamp(hsl.a);
- return hsla(hsl);
- },
- fade: function (color, amount) {
- var hsl = color.toHSL();
- hsl.a = amount.value / 100;
- hsl.a = clamp(hsl.a);
- return hsla(hsl);
- },
- spin: function (color, amount) {
- var hsl = color.toHSL();
- var hue = (hsl.h + amount.value) % 360;
- hsl.h = hue < 0 ? 360 + hue : hue;
- return hsla(hsl);
- },
- //
- // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
- // http://sass-lang.com
- //
- mix: function (color1, color2, weight) {
- if (!weight) {
- weight = new(Dimension)(50);
- }
- var p = weight.value / 100.0;
- var w = p * 2 - 1;
- var a = color1.toHSL().a - color2.toHSL().a;
- var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
- var w2 = 1 - w1;
- var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
- color1.rgb[1] * w1 + color2.rgb[1] * w2,
- color1.rgb[2] * w1 + color2.rgb[2] * w2];
- var alpha = color1.alpha * p + color2.alpha * (1 - p);
- return new(Color)(rgb, alpha);
- },
- greyscale: function (color) {
- return colorFunctions.desaturate(color, new(Dimension)(100));
- },
- contrast: function (color, dark, light, threshold) {
- // filter: contrast(3.2);
- // should be kept as is, so check for color
- if (!color.rgb) {
- return null;
- }
- if (typeof light === 'undefined') {
- light = colorFunctions.rgba(255, 255, 255, 1.0);
- }
- if (typeof dark === 'undefined') {
- dark = colorFunctions.rgba(0, 0, 0, 1.0);
- }
- //Figure out which is actually light and dark!
- if (dark.luma() > light.luma()) {
- var t = light;
- light = dark;
- dark = t;
- }
- if (typeof threshold === 'undefined') {
- threshold = 0.43;
- } else {
- threshold = number(threshold);
- }
- if (color.luma() < threshold) {
- return light;
- } else {
- return dark;
- }
- },
- argb: function (color) {
- return new(Anonymous)(color.toARGB());
- },
- color: function(c) {
- if ((c instanceof Quoted) &&
- (/^#([a-f0-9]{6}|[a-f0-9]{3})$/i.test(c.value))) {
- return new(Color)(c.value.slice(1));
- }
- if ((c instanceof Color) || (c = Color.fromKeyword(c.value))) {
- c.keyword = undefined;
- return c;
- }
- throw {
- type: "Argument",
- message: "argument must be a color keyword or 3/6 digit hex e.g. #FFF"
- };
- },
- tint: function(color, amount) {
- return colorFunctions.mix(colorFunctions.rgb(255,255,255), color, amount);
- },
- shade: function(color, amount) {
- return colorFunctions.mix(colorFunctions.rgb(0, 0, 0), color, amount);
- }
- };
- functionRegistry.addMultiple(colorFunctions);
- },{"../tree/anonymous.js":27,"../tree/color.js":31,"../tree/dimension.js":37,"../tree/quoted.js":54,"./function-registry.js":12}],9:[function(require,module,exports){
- module.exports = function(environment) {
- var Anonymous = require("../tree/anonymous.js"),
- URL = require("../tree/url.js"),
- functionRegistry = require("./function-registry.js");
- functionRegistry.add("data-uri", function(mimetypeNode, filePathNode) {
- if (!environment.supportsDataURI(this.env)) {
- return new URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env);
- }
- var mimetype = mimetypeNode.value;
- var filePath = (filePathNode && filePathNode.value);
- var useBase64 = false;
- if (arguments.length < 2) {
- filePath = mimetype;
- }
- var fragmentStart = filePath.indexOf('#');
- var fragment = '';
- if (fragmentStart!==-1) {
- fragment = filePath.slice(fragmentStart);
- filePath = filePath.slice(0, fragmentStart);
- }
- if (this.env.isPathRelative(filePath)) {
- if (this.currentFileInfo.relativeUrls) {
- filePath = environment.join(this.currentFileInfo.currentDirectory, filePath);
- } else {
- filePath = environment.join(this.currentFileInfo.entryPath, filePath);
- }
- }
- // detect the mimetype if not given
- if (arguments.length < 2) {
- mimetype = environment.mimeLookup(this.env, filePath);
- // use base 64 unless it's an ASCII or UTF-8 format
- var charset = environment.charsetLookup(this.env, mimetype);
- useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0;
- if (useBase64) { mimetype += ';base64'; }
- }
- else {
- useBase64 = /;base64$/.test(mimetype);
- }
- var buf = environment.readFileSync(filePath);
- // IE8 cannot handle a data-uri larger than 32KB. If this is exceeded
- // and the --ieCompat flag is enabled, return a normal url() instead.
- var DATA_URI_MAX_KB = 32,
- fileSizeInKB = parseInt((buf.length / 1024), 10);
- if (fileSizeInKB >= DATA_URI_MAX_KB) {
- if (this.env.ieCompat !== false) {
- if (!this.env.silent) {
- console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB);
- }
- return new URL(filePathNode || mimetypeNode, this.currentFileInfo).eval(this.env);
- }
- }
- buf = useBase64 ? buf.toString('base64')
- : encodeURIComponent(buf);
- var uri = "\"data:" + mimetype + ',' + buf + fragment + "\"";
- return new(URL)(new(Anonymous)(uri));
- });
- };
- },{"../tree/anonymous.js":27,"../tree/url.js":61,"./function-registry.js":12}],10:[function(require,module,exports){
- var Keyword = require("../tree/keyword.js"),
- functionRegistry = require("./function-registry.js");
- var defaultFunc = {
- eval: function () {
- var v = this.value_, e = this.error_;
- if (e) {
- throw e;
- }
- if (v != null) {
- return v ? Keyword.True : Keyword.False;
- }
- },
- value: function (v) {
- this.value_ = v;
- },
- error: function (e) {
- this.error_ = e;
- },
- reset: function () {
- this.value_ = this.error_ = null;
- }
- };
- functionRegistry.add("default", defaultFunc.eval.bind(defaultFunc));
- module.exports = defaultFunc;
- },{"../tree/keyword.js":46,"./function-registry.js":12}],11:[function(require,module,exports){
- var functionRegistry = require("./function-registry.js");
- var functionCaller = function(name, env, currentFileInfo) {
- this.name = name.toLowerCase();
- this.function = functionRegistry.get(this.name);
- this.env = env;
- this.currentFileInfo = currentFileInfo;
- };
- functionCaller.prototype.isValid = function() {
- return Boolean(this.function);
- };
- functionCaller.prototype.call = function(args) {
- return this.function.apply(this, args);
- };
- module.exports = functionCaller;
- },{"./function-registry.js":12}],12:[function(require,module,exports){
- module.exports = {
- _data: {},
- add: function(name, func) {
- if (this._data.hasOwnProperty(name)) {
- //TODO warn
- }
- this._data[name] = func;
- },
- addMultiple: function(functions) {
- Object.keys(functions).forEach(
- function(name) {
- this.add(name, functions[name]);
- }.bind(this));
- },
- get: function(name) {
- return this._data[name];
- }
- };
- },{}],13:[function(require,module,exports){
- module.exports = function(environment) {
- var functions = {
- functionRegistry: require("./function-registry.js"),
- functionCaller: require("./function-caller.js")
- };
- //register functions
- require("./default.js");
- require("./color.js");
- require("./color-blending.js");
- require("./data-uri.js")(environment);
- require("./math.js");
- require("./number.js");
- require("./string.js");
- require("./svg.js")(environment);
- require("./types.js");
- return functions;
- };
- },{"./color-blending.js":7,"./color.js":8,"./data-uri.js":9,"./default.js":10,"./function-caller.js":11,"./function-registry.js":12,"./math.js":14,"./number.js":15,"./string.js":16,"./svg.js":17,"./types.js":18}],14:[function(require,module,exports){
- var Dimension = require("../tree/dimension.js"),
- functionRegistry = require("./function-registry.js");
- var mathFunctions = {
- // name, unit
- ceil: null,
- floor: null,
- sqrt: null,
- abs: null,
- tan: "",
- sin: "",
- cos: "",
- atan: "rad",
- asin: "rad",
- acos: "rad"
- };
- function _math(fn, unit, n) {
- if (!(n instanceof Dimension)) {
- throw { type: "Argument", message: "argument must be a number" };
- }
- if (unit == null) {
- unit = n.unit;
- } else {
- n = n.unify();
- }
- return new(Dimension)(fn(parseFloat(n.value)), unit);
- }
- for (var f in mathFunctions) {
- if (mathFunctions.hasOwnProperty(f)) {
- mathFunctions[f] = _math.bind(null, Math[f], mathFunctions[f]);
- }
- }
- mathFunctions.round = function (n, f) {
- var fraction = typeof(f) === "undefined" ? 0 : f.value;
- return _math(function(num) { return num.toFixed(fraction); }, null, n);
- };
- functionRegistry.addMultiple(mathFunctions);
- },{"../tree/dimension.js":37,"./function-registry.js":12}],15:[function(require,module,exports){
- var Dimension = require("../tree/dimension.js"),
- Anonymous = require("../tree/anonymous.js"),
- functionRegistry = require("./function-registry.js");
- var minMax = function (isMin, args) {
- args = Array.prototype.slice.call(args);
- switch(args.length) {
- case 0: throw { type: "Argument", message: "one or more arguments required" };
- }
- var i, j, current, currentUnified, referenceUnified, unit, unitStatic, unitClone,
- order = [], // elems only contains original argument values.
- values = {}; // key is the unit.toString() for unified Dimension values,
- // value is the index into the order array.
- for (i = 0; i < args.length; i++) {
- current = args[i];
- if (!(current instanceof Dimension)) {
- if(Array.isArray(args[i].value)) {
- Array.prototype.push.apply(args, Array.prototype.slice.call(args[i].value));
- }
- continue;
- }
- currentUnified = current.unit.toString() === "" && unitClone !== undefined ? new(Dimension)(current.value, unitClone).unify() : current.unify();
- unit = currentUnified.unit.toString() === "" && unitStatic !== undefined ? unitStatic : currentUnified.unit.toString();
- unitStatic = unit !== "" && unitStatic === undefined || unit !== "" && order[0].unify().unit.toString() === "" ? unit : unitStatic;
- unitClone = unit !== "" && unitClone === undefined ? current.unit.toString() : unitClone;
- j = values[""] !== undefined && unit !== "" && unit === unitStatic ? values[""] : values[unit];
- if (j === undefined) {
- if(unitStatic !== undefined && unit !== unitStatic) {
- throw{ type: "Argument", message: "incompatible types" };
- }
- values[unit] = order.length;
- order.push(current);
- continue;
- }
- referenceUnified = order[j].unit.toString() === "" && unitClone !== undefined ? new(Dimension)(order[j].value, unitClone).unify() : order[j].unify();
- if ( isMin && currentUnified.value < referenceUnified.value ||
- !isMin && currentUnified.value > referenceUnified.value) {
- order[j] = current;
- }
- }
- if (order.length == 1) {
- return order[0];
- }
- args = order.map(function (a) { return a.toCSS(this.env); }).join(this.env.compress ? "," : ", ");
- return new(Anonymous)((isMin ? "min" : "max") + "(" + args + ")");
- };
- functionRegistry.addMultiple({
- min: function () {
- return minMax(true, arguments);
- },
- max: function () {
- return minMax(false, arguments);
- },
- convert: function (val, unit) {
- return val.convertTo(unit.value);
- },
- pi: function () {
- return new(Dimension)(Math.PI);
- },
- mod: function(a, b) {
- return new(Dimension)(a.value % b.value, a.unit);
- },
- pow: function(x, y) {
- if (typeof x === "number" && typeof y === "number") {
- x = new(Dimension)(x);
- y = new(Dimension)(y);
- } else if (!(x instanceof Dimension) || !(y instanceof Dimension)) {
- throw { type: "Argument", message: "arguments must be numbers" };
- }
- return new(Dimension)(Math.pow(x.value, y.value), x.unit);
- },
- percentage: function (n) {
- return new(Dimension)(n.value * 100, '%');
- }
- });
- },{"../tree/anonymous.js":27,"../tree/dimension.js":37,"./function-registry.js":12}],16:[function(require,module,exports){
- var Quoted = require("../tree/quoted.js"),
- Anonymous = require("../tree/anonymous.js"),
- JavaScript = require("../tree/javascript.js"),
- functionRegistry = require("./function-registry.js");
- functionRegistry.addMultiple({
- e: function (str) {
- return new(Anonymous)(str instanceof JavaScript ? str.evaluated : str.value);
- },
- escape: function (str) {
- return new(Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29"));
- },
- replace: function (string, pattern, replacement, flags) {
- var result = string.value;
- result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement.value);
- return new(Quoted)(string.quote || '', result, string.escaped);
- },
- '%': function (string /* arg, arg, ...*/) {
- var args = Array.prototype.slice.call(arguments, 1),
- result = string.value;
- for (var i = 0; i < args.length; i++) {
- /*jshint loopfunc:true */
- result = result.replace(/%[sda]/i, function(token) {
- var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
- return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
- });
- }
- result = result.replace(/%%/g, '%');
- return new(Quoted)(string.quote || '', result, string.escaped);
- }
- });
- },{"../tree/anonymous.js":27,"../tree/javascript.js":44,"../tree/quoted.js":54,"./function-registry.js":12}],17:[function(require,module,exports){
- module.exports = function(environment) {
- var Dimension = require("../tree/dimension.js"),
- Color = require("../tree/color.js"),
- Anonymous = require("../tree/anonymous.js"),
- URL = require("../tree/url.js"),
- functionRegistry = require("./function-registry.js");
- functionRegistry.add("svg-gradient", function(direction) {
- function throwArgumentDescriptor() {
- throw { type: "Argument", message: "svg-gradient expects direction, start_color [start_position], [color position,]..., end_color [end_position]" };
- }
- if (arguments.length < 3) {
- throwArgumentDescriptor();
- }
- var stops = Array.prototype.slice.call(arguments, 1),
- gradientDirectionSvg,
- gradientType = "linear",
- rectangleDimension = 'x="0" y="0" width="1" height="1"',
- useBase64 = true,
- renderEnv = {compress: false},
- returner,
- directionValue = direction.toCSS(renderEnv),
- i, color, position, positionValue, alpha;
- switch (directionValue) {
- case "to bottom":
- gradientDirectionSvg = 'x1="0%" y1="0%" x2="0%" y2="100%"';
- break;
- case "to right":
- gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="0%"';
- break;
- case "to bottom right":
- gradientDirectionSvg = 'x1="0%" y1="0%" x2="100%" y2="100%"';
- break;
- case "to top right":
- gradientDirectionSvg = 'x1="0%" y1="100%" x2="100%" y2="0%"';
- break;
- case "ellipse":
- case "ellipse at center":
- gradientType = "radial";
- gradientDirectionSvg = 'cx="50%" cy="50%" r="75%"';
- rectangleDimension = 'x="-50" y="-50" width="101" height="101"';
- break;
- default:
- throw { type: "Argument", message: "svg-gradient direction must be 'to bottom', 'to right', 'to bottom right', 'to top right' or 'ellipse at center'" };
- }
- returner = '<?xml version="1.0" ?>' +
- '<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="100%" height="100%" viewBox="0 0 1 1" preserveAspectRatio="none">' +
- '<' + gradientType + 'Gradient id="gradient" gradientUnits="userSpaceOnUse" ' + gradientDirectionSvg + '>';
- for (i = 0; i < stops.length; i+= 1) {
- if (stops[i].value) {
- color = stops[i].value[0];
- position = stops[i].value[1];
- } else {
- color = stops[i];
- position = undefined;
- }
- if (!(color instanceof Color) || (!((i === 0 || i+1 === stops.length) && position === undefined) && !(position instanceof Dimension))) {
- throwArgumentDescriptor();
- }
- positionValue = position ? position.toCSS(renderEnv) : i === 0 ? "0%" : "100%";
- alpha = color.alpha;
- returner += '<stop offset="' + positionValue + '" stop-color="' + color.toRGB() + '"' + (alpha < 1 ? ' stop-opacity="' + alpha + '"' : '') + '/>';
- }
- returner += '</' + gradientType + 'Gradient>' +
- '<rect ' + rectangleDimension + ' fill="url(#gradient)" /></svg>';
- if (useBase64) {
- try {
- returner = environment.encodeBase64(this.env, returner);
- } catch(e) {
- useBase64 = false;
- }
- }
- returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'";
- return new(URL)(new(Anonymous)(returner));
- });
- };
- },{"../tree/anonymous.js":27,"../tree/color.js":31,"../tree/dimension.js":37,"../tree/url.js":61,"./function-registry.js":12}],18:[function(require,module,exports){
- var Keyword = require("../tree/keyword.js"),
- Dimension = require("../tree/dimension.js"),
- Color = require("../tree/color.js"),
- Quoted = require("../tree/quoted.js"),
- Anonymous = require("../tree/anonymous.js"),
- URL = require("../tree/url.js"),
- Operation = require("../tree/operation.js"),
- functionRegistry = require("./function-registry.js");
- var isa = function (n, Type) {
- return (n instanceof Type) ? Keyword.True : Keyword.False;
- },
- isunit = function (n, unit) {
- return (n instanceof Dimension) && n.unit.is(unit.value || unit) ? Keyword.True : Keyword.False;
- };
- functionRegistry.addMultiple({
- iscolor: function (n) {
- return isa(n, Color);
- },
- isnumber: function (n) {
- return isa(n, Dimension);
- },
- isstring: function (n) {
- return isa(n, Quoted);
- },
- iskeyword: function (n) {
- return isa(n, Keyword);
- },
- isurl: function (n) {
- return isa(n, URL);
- },
- ispixel: function (n) {
- return isunit(n, 'px');
- },
- ispercentage: function (n) {
- return isunit(n, '%');
- },
- isem: function (n) {
- return isunit(n, 'em');
- },
- isunit: isunit,
- unit: function (val, unit) {
- if(!(val instanceof Dimension)) {
- throw { type: "Argument", message: "the first argument to unit must be a number" + (val instanceof Operation ? ". Have you forgotten parenthesis?" : "") };
- }
- if (unit) {
- if (unit instanceof Keyword) {
- unit = unit.value;
- } else {
- unit = unit.toCSS();
- }
- } else {
- unit = "";
- }
- return new(Dimension)(val.value, unit);
- },
- "get-unit": function (n) {
- return new(Anonymous)(n.unit);
- },
- extract: function(values, index) {
- index = index.value - 1; // (1-based index)
- // handle non-array values as an array of length 1
- // return 'undefined' if index is invalid
- return Array.isArray(values.value) ?
- values.value[index] : Array(values)[index];
- },
- length: function(values) {
- var n = Array.isArray(values.value) ? values.value.length : 1;
- return new Dimension(n);
- }
- });
- },{"../tree/anonymous.js":27,"../tree/color.js":31,"../tree/dimension.js":37,"../tree/keyword.js":46,"../tree/operation.js":52,"../tree/quoted.js":54,"../tree/url.js":61,"./function-registry.js":12}],19:[function(require,module,exports){
- var LessError = module.exports = function LessError(parser, e, env) {
- var input = parser.getInput(e, env),
- loc = parser.getLocation(e.index, input),
- line = loc.line,
- col = loc.column,
- callLine = e.call && parser.getLocation(e.call, input).line,
- lines = input.split('\n');
- this.type = e.type || 'Syntax';
- this.message = e.message;
- this.filename = e.filename || env.currentFileInfo.filename;
- this.index = e.index;
- this.line = typeof(line) === 'number' ? line + 1 : null;
- this.callLine = callLine + 1;
- this.callExtract = lines[callLine];
- this.stack = e.stack;
- this.column = col;
- this.extract = [
- lines[line - 1],
- lines[line],
- lines[line + 1]
- ];
- };
- LessError.prototype = new Error();
- LessError.prototype.constructor = LessError;
- },{}],20:[function(require,module,exports){
- module.exports = function(environment) {
- var less = {
- version: [2, 0, 0],
- data: require('./data/index.js'),
- tree: require('./tree/index.js'),
- visitor: require('./visitor/index.js'),
- Parser: require('./parser/parser.js')(environment),
- functions: require('./functions/index.js')(environment),
- contexts: require("./contexts.js"),
- environment: environment
- };
- return less;
- };
- },{"./contexts.js":2,"./data/index.js":4,"./functions/index.js":13,"./parser/parser.js":24,"./tree/index.js":43,"./visitor/index.js":66}],21:[function(require,module,exports){
- // Split the input into chunks.
- module.exports = function (input, fail) {
- var len = input.length, level = 0, parenLevel = 0,
- lastOpening, lastOpeningParen, lastMultiComment, lastMultiCommentEndBrace,
- chunks = [], emitFrom = 0,
- chunkerCurrentIndex, currentChunkStartIndex, cc, cc2, matched;
- function emitChunk(force) {
- var len = chunkerCurrentIndex - emitFrom;
- if (((len < 512) && !force) || !len) {
- return;
- }
- chunks.push(input.slice(emitFrom, chunkerCurrentIndex + 1));
- emitFrom = chunkerCurrentIndex + 1;
- }
- for (chunkerCurrentIndex = 0; chunkerCurrentIndex < len; chunkerCurrentIndex++) {
- cc = input.charCodeAt(chunkerCurrentIndex);
- if (((cc >= 97) && (cc <= 122)) || (cc < 34)) {
- // a-z or whitespace
- continue;
- }
- switch (cc) {
- case 40: // (
- parenLevel++;
- lastOpeningParen = chunkerCurrentIndex;
- continue;
- case 41: // )
- if (--parenLevel < 0) {
- return fail("missing opening `(`", chunkerCurrentIndex);
- }
- continue;
- case 59: // ;
- if (!parenLevel) { emitChunk(); }
- continue;
- case 123: // {
- level++;
- lastOpening = chunkerCurrentIndex;
- continue;
- case 125: // }
- if (--level < 0) {
- return fail("missing opening `{`", chunkerCurrentIndex);
- }
- if (!level && !parenLevel) { emitChunk(); }
- continue;
- case 92: // \
- if (chunkerCurrentIndex < len - 1) { chunkerCurrentIndex++; continue; }
- return fail("unescaped `\\`", chunkerCurrentIndex);
- case 34:
- case 39:
- case 96: // ", ' and `
- matched = 0;
- currentChunkStartIndex = chunkerCurrentIndex;
- for (chunkerCurrentIndex = chunkerCurrentIndex + 1; chunkerCurrentIndex < len; chunkerCurrentIndex++) {
- cc2 = input.charCodeAt(chunkerCurrentIndex);
- if (cc2 > 96) { continue; }
- if (cc2 == cc) { matched = 1; break; }
- if (cc2 == 92) { // \
- if (chunkerCurrentIndex == len - 1) {
- return fail("unescaped `\\`", chunkerCurrentIndex);
- }
- chunkerCurrentIndex++;
- }
- }
- if (matched) { continue; }
- return fail("unmatched `" + String.fromCharCode(cc) + "`", currentChunkStartIndex);
- case 47: // /, check for comment
- if (parenLevel || (chunkerCurrentIndex == len - 1)) { continue; }
- cc2 = input.charCodeAt(chunkerCurrentIndex + 1);
- if (cc2 == 47) {
- // //, find lnfeed
- for (chunkerCurrentIndex = chunkerCurrentIndex + 2; chunkerCurrentIndex < len; chunkerCurrentIndex++) {
- cc2 = input.charCodeAt(chunkerCurrentIndex);
- if ((cc2 <= 13) && ((cc2 == 10) || (cc2 == 13))) { break; }
- }
- } else if (cc2 == 42) {
- // /*, find */
- lastMultiComment = currentChunkStartIndex = chunkerCurrentIndex;
- for (chunkerCurrentIndex = chunkerCurrentIndex + 2; chunkerCurrentIndex < len - 1; chunkerCurrentIndex++) {
- cc2 = input.charCodeAt(chunkerCurrentIndex);
- if (cc2 == 125) { lastMultiCommentEndBrace = chunkerCurrentIndex; }
- if (cc2 != 42) { continue; }
- if (input.charCodeAt(chunkerCurrentIndex + 1) == 47) { break; }
- }
- if (chunkerCurrentIndex == len - 1) {
- return fail("missing closing `*/`", currentChunkStartIndex);
- }
- chunkerCurrentIndex++;
- }
- continue;
- case 42: // *, check for unmatched */
- if ((chunkerCurrentIndex < len - 1) && (input.charCodeAt(chunkerCurrentIndex + 1) == 47)) {
- return fail("unmatched `/*`", chunkerCurrentIndex);
- }
- continue;
- }
- }
- if (level !== 0) {
- if ((lastMultiComment > lastOpening) && (lastMultiCommentEndBrace > lastMultiComment)) {
- return fail("missing closing `}` or `*/`", lastOpening);
- } else {
- return fail("missing closing `}`", lastOpening);
- }
- } else if (parenLevel !== 0) {
- return fail("missing closing `)`", lastOpeningParen);
- }
- emitChunk(true);
- return chunks;
- };
- },{}],22:[function(require,module,exports){
- var contexts = require("../contexts.js");
- module.exports = function(environment, env, Parser) {
- var rootFilename = env && env.filename;
- return {
- paths: env.paths || [], // Search paths, when importing
- queue: [], // Files which haven't been imported yet
- files: env.files, // Holds the imported parse trees
- contents: env.contents, // Holds the imported file contents
- contentsIgnoredChars: env.contentsIgnoredChars, // lines inserted, not in the original less
- mime: env.mime, // MIME type of .less files
- error: null, // Error in parsing/evaluating an import
- push: function (path, currentFileInfo, importOptions, callback) {
- var parserImports = this;
- this.queue.push(path);
- var fileParsedFunc = function (e, root, fullPath) {
- parserImports.queue.splice(parserImports.queue.indexOf(path), 1); // Remove the path from the queue
- var importedPreviously = fullPath === rootFilename;
- parserImports.files[fullPath] = root; // Store the root
- if (e && !parserImports.error) { parserImports.error = e; }
- callback(e, root, importedPreviously, fullPath);
- };
- var newFileInfo = {
- relativeUrls: env.relativeUrls,
- entryPath: currentFileInfo.entryPath,
- rootpath: currentFileInfo.rootpath,
- rootFilename: currentFileInfo.rootFilename
- };
- environment.loadFile(env, path, currentFileInfo.currentDirectory, function loadFileCallback(e, contents, resolvedFilename) {
- if (e) {
- fileParsedFunc(e);
- return;
- }
- // Pass on an updated rootpath if path of imported file is relative and file
- // is in a (sub|sup) directory
- //
- // Examples:
- // - If path of imported file is 'module/nav/nav.less' and rootpath is 'less/',
- // then rootpath should become 'less/module/nav/'
- // - If path of imported file is '../mixins.less' and rootpath is 'less/',
- // then rootpath should become 'less/../'
- newFileInfo.currentDirectory = environment.getPath(env, resolvedFilename);
- if(newFileInfo.relativeUrls) {
- newFileInfo.rootpath = environment.join((env.rootpath || ""), environment.pathDiff(newFileInfo.currentDirectory, newFileInfo.entryPath));
- if (!environment.isPathAbsolute(env, newFileInfo.rootpath) && environment.alwaysMakePathsAbsolute()) {
- newFileInfo.rootpath = environment.join(newFileInfo.entryPath, newFileInfo.rootpath);
- }
- }
- newFileInfo.filename = resolvedFilename;
- var newEnv = new contexts.parseEnv(env);
- newEnv.currentFileInfo = newFileInfo;
- newEnv.processImports = false;
- newEnv.contents[resolvedFilename] = contents;
- if (currentFileInfo.reference || importOptions.reference) {
- newFileInfo.reference = true;
- }
- if (importOptions.inline) {
- fileParsedFunc(null, contents, resolvedFilename);
- } else {
- new(Parser)(newEnv).parse(contents, function (e, root) {
- fileParsedFunc(e, root, resolvedFilename);
- });
- }
- });
- }
- };
- };
- },{"../contexts.js":2}],23:[function(require,module,exports){
- var chunker = require('./chunker.js'),
- LessError = require('../less-error.js');
- module.exports = function() {
- var input, // LeSS input string
- j, // current chunk
- saveStack = [], // holds state for backtracking
- furthest, // furthest index the parser has gone to
- furthestPossibleErrorMessage,// if this is furthest we got to, this is the probably cause
- chunks, // chunkified input
- current, // current chunk
- currentPos, // index of current chunk, in `input`
- parserInput = {};
- parserInput.save = function() {
- currentPos = parserInput.i;
- saveStack.push( { current: current, i: parserInput.i, j: j });
- };
- parserInput.restore = function(possibleErrorMessage) {
- if (parserInput.i > furthest) {
- furthest = parserInput.i;
- furthestPossibleErrorMessage = possibleErrorMessage;
- }
- var state = saveStack.pop();
- current = state.current;
- currentPos = parserInput.i = state.i;
- j = state.j;
- };
- parserInput.forget = function() {
- saveStack.pop();
- };
- function sync() {
- if (parserInput.i > currentPos) {
- current = current.slice(parserInput.i - currentPos);
- currentPos = parserInput.i;
- }
- }
- parserInput.isWhitespace = function (offset) {
- var pos = parserInput.i + (offset || 0),
- code = input.charCodeAt(pos);
- return (code === CHARCODE_SPACE || code === CHARCODE_CR || code === CHARCODE_TAB || code === CHARCODE_LF);
- };
- //
- // Parse from a token, regexp or string, and move forward if match
- //
- parserInput.$ = function(tok) {
- var tokType = typeof tok,
- match, length;
- // Either match a single character in the input,
- // or match a regexp in the current chunk (`current`).
- //
- if (tokType === "string") {
- if (input.charAt(parserInput.i) !== tok) {
- return null;
- }
- skipWhitespace(1);
- return tok;
- }
- // regexp
- sync();
- if (! (match = tok.exec(current))) {
- return null;
- }
- length = match[0].length;
- // The match is confirmed, add the match length to `i`,
- // and consume any extra white-space characters (' ' || '\n')
- // which come after that. The reason for this is that LeSS's
- // grammar is mostly white-space insensitive.
- //
- skipWhitespace(length);
- if(typeof(match) === 'string') {
- return match;
- } else {
- return match.length === 1 ? match[0] : match;
- }
- };
- // Specialization of $(tok)
- parserInput.$re = function(tok) {
- if (parserInput.i > currentPos) {
- current = current.slice(parserInput.i - currentPos);
- currentPos = parserInput.i;
- }
- var m = tok.exec(current);
- if (!m) {
- return null;
- }
- skipWhitespace(m[0].length);
- if(typeof m === "string") {
- return m;
- }
- return m.length === 1 ? m[0] : m;
- };
- // Specialization of $(tok)
- parserInput.$char = function(tok) {
- if (input.charAt(parserInput.i) !== tok) {
- return null;
- }
- skipWhitespace(1);
- return tok;
- };
- var CHARCODE_SPACE = 32,
- CHARCODE_TAB = 9,
- CHARCODE_LF = 10,
- CHARCODE_CR = 13,
- CHARCODE_PLUS = 43,
- CHARCODE_COMMA = 44,
- CHARCODE_FORWARD_SLASH = 47,
- CHARCODE_9 = 57;
- parserInput.autoCommentAbsorb = true;
- parserInput.commentStore = [];
- parserInput.finished = false;
- var skipWhitespace = function(length) {
- var oldi = parserInput.i, oldj = j,
- curr = parserInput.i - currentPos,
- endIndex = parserInput.i + current.length - curr,
- mem = (parserInput.i += length),
- inp = input,
- c, nextChar, comment;
- for (; parserInput.i < endIndex; parserInput.i++) {
- c = inp.charCodeAt(parserInput.i);
- if (parserInput.autoCommentAbsorb && c === CHARCODE_FORWARD_SLASH) {
- nextChar = inp[parserInput.i + 1];
- if (nextChar === '/') {
- comment = {index: parserInput.i, isLineComment: true};
- var nextNewLine = inp.indexOf("\n", parserInput.i + 1);
- if (nextNewLine < 0) {
- nextNewLine = endIndex;
- }
- parserInput.i = nextNewLine;
- comment.text = inp.substr(comment.i, parserInput.i - comment.i);
- parserInput.commentStore.push(comment);
- continue;
- } else if (nextChar === '*') {
- var haystack = inp.substr(parserInput.i);
- var comment_search_result = haystack.match(/^\/\*(?:[^*]|\*+[^\/*])*\*+\//);
- if (comment_search_result) {
- comment = {
- index: parserInput.i,
- text: comment_search_result[0],
- isLineComment: false
- };
- parserInput.i += comment.text.length - 1;
- parserInput.commentStore.push(comment);
- continue;
- }
- }
- break;
- }
- if ((c !== CHARCODE_SPACE) && (c !== CHARCODE_LF) && (c !== CHARCODE_TAB) && (c !== CHARCODE_CR)) {
- break;
- }
- }
- current = current.slice(length + parserInput.i - mem + curr);
- currentPos = parserInput.i;
- if (!current.length) {
- if (j < chunks.length - 1)
- {
- current = chunks[++j];
- skipWhitespace(0); // skip space at the beginning of a chunk
- return true; // things changed
- }
- parserInput.finished = true;
- }
- return oldi !== parserInput.i || oldj !== j;
- };
- // Same as $(), but don't change the state of the parser,
- // just return the match.
- parserInput.peek = function(tok) {
- if (typeof(tok) === 'string') {
- return input.charAt(parserInput.i) === tok;
- } else {
- return tok.test(current);
- }
- };
- // Specialization of peek()
- // TODO remove or change some currentChar calls to peekChar
- parserInput.peekChar = function(tok) {
- return input.charAt(parserInput.i) === tok;
- };
- parserInput.currentChar = function() {
- return input.charAt(parserInput.i);
- };
- parserInput.getInput = function() {
- return input;
- };
- parserInput.peekNotNumeric = function() {
- var c = input.charCodeAt(parserInput.i);
- //Is the first char of the dimension 0-9, '.', '+' or '-'
- return (c > CHARCODE_9 || c < CHARCODE_PLUS) || c === CHARCODE_FORWARD_SLASH || c === CHARCODE_COMMA;
- };
- parserInput.getLocation = function(index, inputStream) {
- inputStream = inputStream == null ? input : inputStream;
- var n = index + 1,
- line = null,
- column = -1;
- while (--n >= 0 && inputStream.charAt(n) !== '\n') {
- column++;
- }
- if (typeof index === 'number') {
- line = (inputStream.slice(0, index).match(/\n/g) || "").length;
- }
- return {
- line: line,
- column: column
- };
- };
- parserInput.start = function(str, chunkInput, parser, env) {
- input = str;
- parserInput.i = j = currentPos = furthest = 0;
- // chunking apparantly makes things quicker (but my tests indicate
- // it might actually make things slower in node at least)
- // and it is a non-perfect parse - it can't recognise
- // unquoted urls, meaning it can't distinguish comments
- // meaning comments with quotes or {}() in them get 'counted'
- // and then lead to parse errors.
- // In addition if the chunking chunks in the wrong place we might
- // not be able to parse a parser statement in one go
- // this is officially deprecated but can be switched on via an option
- // in the case it causes too much performance issues.
- if (chunkInput) {
- chunks = chunker(str, function fail(msg, index) {
- throw new(LessError)(parser, {
- index: index,
- type: 'Parse',
- message: msg,
- filename: env.currentFileInfo.filename
- }, env);
- });
- } else {
- chunks = [str];
- }
- current = chunks[0];
- skipWhitespace(0);
- };
- parserInput.end = function() {
- var message,
- isFinished = parserInput.i >= input.length - 1;
- if (parserInput.i < furthest) {
- message = furthestPossibleErrorMessage;
- parserInput.i = furthest;
- }
- return {
- isFinished: isFinished,
- furthest: parserInput.i,
- furthestPossibleErrorMessage: message,
- furthestReachedEnd: parserInput.i >= input.length - 1,
- furthestChar: input[parserInput.i]
- };
- };
- return parserInput;
- };
- },{"../less-error.js":19,"./chunker.js":21}],24:[function(require,module,exports){
- var LessError = require('../less-error.js'),
- tree = require("../tree/index.js"),
- visitor = require("../visitor/index.js"),
- contexts = require("../contexts.js"),
- getImportManager = require("./imports.js"),
- getParserInput = require("./parser-input.js");
- module.exports = function(environment) {
- var SourceMapOutput = require("../source-map-output")(environment);
- //
- // less.js - parser
- //
- // A relatively straight-forward predictive parser.
- // There is no tokenization/lexing stage, the input is parsed
- // in one sweep.
- //
- // To make the parser fast enough to run in the browser, several
- // optimization had to be made:
- //
- // - Matching and slicing on a huge input is often cause of slowdowns.
- // The solution is to chunkify the input into smaller strings.
- // The chunks are stored in the `chunks` var,
- // `j` holds the current chunk index, and `currentPos` holds
- // the index of the current chunk in relation to `input`.
- // This gives us an almost 4x speed-up.
- //
- // - In many cases, we don't need to match individual tokens;
- // for example, if a value doesn't hold any variables, operations
- // or dynamic references, the parser can effectively 'skip' it,
- // treating it as a literal.
- // An example would be '1px solid #000' - which evaluates to itself,
- // we don't need to know what the individual components are.
- // The drawback, of course is that you don't get the benefits of
- // syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
- // and a smaller speed-up in the code-gen.
- //
- //
- // Token matching is done with the `$` function, which either takes
- // a terminal string or regexp, or a non-terminal function to call.
- // It also takes care of moving all the indices forwards.
- //
- //
- var Parser = function Parser(env) {
- var parser,
- parsers,
- parserInput = getParserInput();
- // Top parser on an import tree must be sure there is one "env"
- // which will then be passed around by reference.
- if (!(env instanceof contexts.parseEnv)) {
- env = new contexts.parseEnv(env);
- }
- this.env = env;
- var imports = this.imports = getImportManager(environment, env, Parser);
- function expect(arg, msg, index) {
- // some older browsers return typeof 'function' for RegExp
- var result = (Object.prototype.toString.call(arg) === '[object Function]') ? arg.call(parsers) : parserInput.$(arg);
- if (result) {
- return result;
- }
- error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + parserInput.currentChar() + "'"
- : "unexpected token"));
- }
- // Specialization of expect()
- function expectChar(arg, msg) {
- if (parserInput.$char(arg)) {
- return arg;
- }
- error(msg || "expected '" + arg + "' got '" + parserInput.currentChar() + "'");
- }
- function error(msg, type) {
- var e = new Error(msg);
- e.index = parserInput.i;
- e.type = type || 'Syntax';
- throw e;
- }
- function getInput(e, env) {
- if (e.filename && env.currentFileInfo.filename && (e.filename !== env.currentFileInfo.filename)) {
- return parser.imports.contents[e.filename];
- } else {
- return parserInput.getInput();
- }
- }
- function getDebugInfo(index) {
- var filename = env.currentFileInfo.filename;
- filename = environment.getAbsolutePath(env, filename);
- return {
- lineNumber: parserInput.getLocation(index).line + 1,
- fileName: filename
- };
- }
- //
- // The Parser
- //
- parser = {
- imports: imports,
- //
- // Parse an input string into an abstract syntax tree,
- // @param str A string containing 'less' markup
- // @param callback call `callback` when done.
- // @param [additionalData] An optional map which can contains vars - a map (key, value) of variables to apply
- //
- parse: function (str, callback, additionalData) {
- var root, error = null, globalVars, modifyVars, preText = "";
- globalVars = (additionalData && additionalData.globalVars) ? Parser.serializeVars(additionalData.globalVars) + '\n' : '';
- modifyVars = (additionalData && additionalData.modifyVars) ? '\n' + Parser.serializeVars(additionalData.modifyVars) : '';
- if (globalVars || (additionalData && additionalData.banner)) {
- preText = ((additionalData && additionalData.banner) ? additionalData.banner : "") + globalVars;
- parser.imports.contentsIgnoredChars[env.currentFileInfo.filename] = preText.length;
- }
- str = str.replace(/\r\n/g, '\n');
- // Remove potential UTF Byte Order Mark
- str = preText + str.replace(/^\uFEFF/, '') + modifyVars;
- parser.imports.contents[env.currentFileInfo.filename] = str;
- // Start with the primary rule.
- // The whole syntax tree is held under a Ruleset node,
- // with the `root` property set to true, so no `{}` are
- // output. The callback is called when the input is parsed.
- try {
- parserInput.start(str, env.chunkInput, parser, env);
- root = new(tree.Ruleset)(null, this.parsers.primary());
- root.root = true;
- root.firstRoot = true;
- } catch (e) {
- return callback(new LessError(parser, e, env));
- }
- root.toCSS = (function (evaluate) {
- return function (options, variables) {
- options = options || {};
- var evaldRoot,
- css,
- evalEnv = new contexts.evalEnv(options);
- //
- // Allows setting variables with a hash, so:
- //
- // `{ color: new(tree.Color)('#f01') }` will become:
- //
- // new(tree.Rule)('@color',
- // new(tree.Value)([
- // new(tree.Expression)([
- // new(tree.Color)('#f01')
- // ])
- // ])
- // )
- //
- if (typeof(variables) === 'object' && !Array.isArray(variables)) {
- variables = Object.keys(variables).map(function (k) {
- var value = variables[k];
- if (! (value instanceof tree.Value)) {
- if (! (value instanceof tree.Expression)) {
- value = new(tree.Expression)([value]);
- }
- value = new(tree.Value)([value]);
- }
- return new(tree.Rule)('@' + k, value, false, null, 0);
- });
- evalEnv.frames = [new(tree.Ruleset)(null, variables)];
- }
- try {
- var preEvalVisitors = [],
- visitors = [
- new(visitor.JoinSelectorVisitor)(),
- new(visitor.ExtendVisitor)(),
- new(visitor.ToCSSVisitor)({compress: Boolean(options.compress)})
- ], i, root = this;
- if (options.plugins) {
- for(i =0; i < options.plugins.length; i++) {
- if (options.plugins[i].isPreEvalVisitor) {
- preEvalVisitors.push(options.plugins[i]);
- } else {
- if (options.plugins[i].isPreVisitor) {
- visitors.splice(0, 0, options.plugins[i]);
- } else {
- visitors.push(options.plugins[i]);
- }
- }
- }
- }
- for(i = 0; i < preEvalVisitors.length; i++) {
- preEvalVisitors[i].run(root);
- }
- evaldRoot = evaluate.call(root, evalEnv);
- for(i = 0; i < visitors.length; i++) {
- visitors[i].run(evaldRoot);
- }
- if (options.sourceMap) {
- evaldRoot = new SourceMapOutput(
- {
- contentsIgnoredCharsMap: parser.imports.contentsIgnoredChars,
- writeSourceMap: options.writeSourceMap,
- rootNode: evaldRoot,
- contentsMap: parser.imports.contents,
- sourceMapFilename: options.sourceMapFilename,
- sourceMapURL: options.sourceMapURL,
- outputFilename: options.sourceMapOutputFilename,
- sourceMapBasepath: options.sourceMapBasepath,
- sourceMapRootpath: options.sourceMapRootpath,
- outputSourceFiles: options.outputSourceFiles,
- sourceMapGenerator: options.sourceMapGenerator
- });
- }
- css = evaldRoot.toCSS({
- compress: Boolean(options.compress),
- dumpLineNumbers: env.dumpLineNumbers,
- strictUnits: Boolean(options.strictUnits),
- numPrecision: 8});
- } catch (e) {
- throw new LessError(parser, e, env);
- }
- var CleanCSS = environment.getCleanCSS();
- if (options.cleancss && CleanCSS) {
- var cleancssOptions = options.cleancssOptions || {};
- if (cleancssOptions.keepSpecialComments === undefined) {
- cleancssOptions.keepSpecialComments = "*";
- }
- cleancssOptions.processImport = false;
- cleancssOptions.noRebase = true;
- if (cleancssOptions.noAdvanced === undefined) {
- cleancssOptions.noAdvanced = true;
- }
- return new CleanCSS(cleancssOptions).minify(css);
- } else if (options.compress) {
- return css.replace(/(^(\s)+)|((\s)+$)/g, "");
- } else {
- return css;
- }
- };
- })(root.eval);
- // If `i` is smaller than the `input.length - 1`,
- // it means the parser wasn't able to parse the whole
- // string, so we've got a parsing error.
- //
- // We try to extract a \n delimited string,
- // showing the line where the parse error occurred.
- // We split it up into two parts (the part which parsed,
- // and the part which didn't), so we can color them differently.
- var endInfo = parserInput.end();
- if (!endInfo.isFinished) {
- var message = endInfo.furthestPossibleErrorMessage;
- if (!message) {
- message = "Unrecognised input";
- if (endInfo.furthestChar === '}') {
- message += ". Possibly missing opening '{'";
- } else if (endInfo.furthestChar === ')') {
- message += ". Possibly missing opening '('";
- } else if (endInfo.furthestReachedEnd) {
- message += ". Possibly missing something";
- }
- }
- error = new LessError(parser, {
- type: "Parse",
- message: message,
- index: endInfo.furthest,
- filename: env.currentFileInfo.filename
- }, env);
- }
- var finish = function (e) {
- e = error || e || parser.imports.error;
- if (e) {
- if (!(e instanceof LessError)) {
- e = new LessError(parser, e, env);
- }
- return callback(e);
- }
- else {
- return callback(null, root);
- }
- };
- if (env.processImports !== false) {
- new visitor.ImportVisitor(this.imports, finish)
- .run(root);
- } else {
- return finish();
- }
- },
- //
- // Here in, the parsing rules/functions
- //
- // The basic structure of the syntax tree generated is as follows:
- //
- // Ruleset -> Rule -> Value -> Expression -> Entity
- //
- // Here's some Less code:
- //
- // .class {
- // color: #fff;
- // border: 1px solid #000;
- // width: @w + 4px;
- // > .child {...}
- // }
- //
- // And here's what the parse tree might look like:
- //
- // Ruleset (Selector '.class', [
- // Rule ("color", Value ([Expression [Color #fff]]))
- // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
- // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
- // Ruleset (Selector [Element '>', '.child'], [...])
- // ])
- //
- // In general, most rules will try to parse a token with the `$()` function, and if the return
- // value is truly, will return a new node, of the relevant type. Sometimes, we need to check
- // first, before parsing, that's when we use `peek()`.
- //
- parsers: parsers = {
- //
- // The `primary` rule is the *entry* and *exit* point of the parser.
- // The rules here can appear at any level of the parse tree.
- //
- // The recursive nature of the grammar is an interplay between the `block`
- // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
- // as represented by this simplified grammar:
- //
- // primary → (ruleset | rule)+
- // ruleset → selector+ block
- // block → '{' primary '}'
- //
- // Only at one point is the primary rule not called from the
- // block rule: at the root level.
- //
- primary: function () {
- var mixin = this.mixin, root = [], node;
- while (!parserInput.finished)
- {
- while(true) {
- node = this.comment();
- if (!node) { break; }
- root.push(node);
- }
- if (parserInput.peek('}')) {
- break;
- }
- node = this.extendRule() || mixin.definition() || this.rule() || this.ruleset() ||
- mixin.call() || this.rulesetCall() || this.directive();
- if (node) {
- root.push(node);
- } else {
- if (!(parserInput.$re(/^[\s\n]+/) || parserInput.$re(/^;+/))) {
- break;
- }
- }
- }
- return root;
- },
- // comments are collected by the main parsing mechanism and then assigned to nodes
- // where the current structure allows it
- comment: function () {
- if (parserInput.commentStore.length) {
- var comment = parserInput.commentStore.shift();
- return new(tree.Comment)(comment.text, comment.isLineComment, comment.index, env.currentFileInfo);
- }
- },
- //
- // Entities are tokens which can be found inside an Expression
- //
- entities: {
- //
- // A string, which supports escaping " and '
- //
- // "milky way" 'he\'s the one!'
- //
- quoted: function () {
- var str, index = parserInput.i;
- str = parserInput.$re(/^(~)?("((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)')/);
- if (str) {
- return new(tree.Quoted)(str[2], str[3] || str[4], Boolean(str[1]), index, env.currentFileInfo);
- }
- },
- //
- // A catch-all word, such as:
- //
- // black border-collapse
- //
- keyword: function () {
- var k = parserInput.$re(/^%|^[_A-Za-z-][_A-Za-z0-9-]*/);
- if (k) {
- return tree.Color.fromKeyword(k) || new(tree.Keyword)(k);
- }
- },
- //
- // A function call
- //
- // rgb(255, 0, 255)
- //
- // We also try to catch IE's `alpha()`, but let the `alpha` parser
- // deal with the details.
- //
- // The arguments are parsed with the `entities.arguments` parser.
- //
- call: function () {
- var name, nameLC, args, alpha, index = parserInput.i;
- if (parserInput.peek(/^url\(/i)) {
- return;
- }
- parserInput.save();
- name = parserInput.$re(/^([\w-]+|%|progid:[\w\.]+)\(/);
- if (!name) { parserInput.forget(); return; }
- name = name[1];
- nameLC = name.toLowerCase();
- if (nameLC === 'alpha') {
- alpha = parsers.alpha();
- if(alpha) {
- return alpha;
- }
- }
- args = this.arguments();
- if (! parserInput.$char(')')) {
- parserInput.restore("Could not parse call arguments or missing ')'");
- return;
- }
- parserInput.forget();
- return new(tree.Call)(name, args, index, env.currentFileInfo);
- },
- arguments: function () {
- var args = [], arg;
- while (true) {
- arg = this.assignment() || parsers.expression();
- if (!arg) {
- break;
- }
- args.push(arg);
- if (! parserInput.$char(',')) {
- break;
- }
- }
- return args;
- },
- literal: function () {
- return this.dimension() ||
- this.color() ||
- this.quoted() ||
- this.unicodeDescriptor();
- },
- // Assignments are argument entities for calls.
- // They are present in ie filter properties as shown below.
- //
- // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
- //
- assignment: function () {
- var key, value;
- key = parserInput.$re(/^\w+(?=\s?=)/i);
- if (!key) {
- return;
- }
- if (!parserInput.$char('=')) {
- return;
- }
- value = parsers.entity();
- if (value) {
- return new(tree.Assignment)(key, value);
- }
- },
- //
- // Parse url() tokens
- //
- // We use a specific rule for urls, because they don't really behave like
- // standard function calls. The difference is that the argument doesn't have
- // to be enclosed within a string, so it can't be parsed as an Expression.
- //
- url: function () {
- var value;
- if (parserInput.currentChar() !== 'u' || !parserInput.$re(/^url\(/)) {
- return;
- }
- parserInput.autoCommentAbsorb = false;
- value = this.quoted() || this.variable() ||
- parserInput.$re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || "";
- parserInput.autoCommentAbsorb = true;
- expectChar(')');
- return new(tree.URL)((value.value != null || value instanceof tree.Variable)
- ? value : new(tree.Anonymous)(value), env.currentFileInfo);
- },
- //
- // A Variable entity, such as `@fink`, in
- //
- // width: @fink + 2px
- //
- // We use a different parser for variable definitions,
- // see `parsers.variable`.
- //
- variable: function () {
- var name, index = parserInput.i;
- if (parserInput.currentChar() === '@' && (name = parserInput.$re(/^@@?[\w-]+/))) {
- return new(tree.Variable)(name, index, env.currentFileInfo);
- }
- },
- // A variable entity useing the protective {} e.g. @{var}
- variableCurly: function () {
- var curly, index = parserInput.i;
- if (parserInput.currentChar() === '@' && (curly = parserInput.$re(/^@\{([\w-]+)\}/))) {
- return new(tree.Variable)("@" + curly[1], index, env.currentFileInfo);
- }
- },
- //
- // A Hexadecimal color
- //
- // #4F3C2F
- //
- // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
- //
- color: function () {
- var rgb;
- if (parserInput.currentChar() === '#' && (rgb = parserInput.$re(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) {
- var colorCandidateString = rgb.input.match(/^#([\w]+).*/); // strip colons, brackets, whitespaces and other characters that should not definitely be part of color string
- colorCandidateString = colorCandidateString[1];
- if (!colorCandidateString.match(/^[A-Fa-f0-9]+$/)) { // verify if candidate consists only of allowed HEX characters
- error("Invalid HEX color code");
- }
- return new(tree.Color)(rgb[1]);
- }
- },
- //
- // A Dimension, that is, a number and a unit
- //
- // 0.5em 95%
- //
- dimension: function () {
- if (parserInput.peekNotNumeric()) {
- return;
- }
- var value = parserInput.$re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/);
- if (value) {
- return new(tree.Dimension)(value[1], value[2]);
- }
- },
- //
- // A unicode descriptor, as is used in unicode-range
- //
- // U+0?? or U+00A1-00A9
- //
- unicodeDescriptor: function () {
- var ud;
- ud = parserInput.$re(/^U\+[0-9a-fA-F?]+(\-[0-9a-fA-F?]+)?/);
- if (ud) {
- return new(tree.UnicodeDescriptor)(ud[0]);
- }
- },
- //
- // JavaScript code to be evaluated
- //
- // `window.location.href`
- //
- javascript: function () {
- var js, index = parserInput.i;
- js = parserInput.$re(/^(~)?`([^`]*)`/);
- if (js) {
- return new(tree.JavaScript)(js[2], index, Boolean(js[1]));
- }
- }
- },
- //
- // The variable part of a variable definition. Used in the `rule` parser
- //
- // @fink:
- //
- variable: function () {
- var name;
- if (parserInput.currentChar() === '@' && (name = parserInput.$re(/^(@[\w-]+)\s*:/))) { return name[1]; }
- },
- //
- // The variable part of a variable definition. Used in the `rule` parser
- //
- // @fink();
- //
- rulesetCall: function () {
- var name;
- if (parserInput.currentChar() === '@' && (name = parserInput.$re(/^(@[\w-]+)\s*\(\s*\)\s*;/))) {
- return new tree.RulesetCall(name[1]);
- }
- },
- //
- // extend syntax - used to extend selectors
- //
- extend: function(isRule) {
- var elements, e, index = parserInput.i, option, extendList, extend;
- if (!(isRule ? parserInput.$re(/^&:extend\(/) : parserInput.$re(/^:extend\(/))) { return; }
- do {
- option = null;
- elements = null;
- while (! (option = parserInput.$re(/^(all)(?=\s*(\)|,))/))) {
- e = this.element();
- if (!e) { break; }
- if (elements) { elements.push(e); } else { elements = [ e ]; }
- }
- option = option && option[1];
- if (!elements)
- error("Missing target selector for :extend().");
- extend = new(tree.Extend)(new(tree.Selector)(elements), option, index);
- if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; }
- } while(parserInput.$char(","));
- expect(/^\)/);
- if (isRule) {
- expect(/^;/);
- }
- return extendList;
- },
- //
- // extendRule - used in a rule to extend all the parent selectors
- //
- extendRule: function() {
- return this.extend(true);
- },
- //
- // Mixins
- //
- mixin: {
- //
- // A Mixin call, with an optional argument list
- //
- // #mixins > .square(#fff);
- // .rounded(4px, black);
- // .button;
- //
- // The `while` loop is there because mixins can be
- // namespaced, but we only support the child and descendant
- // selector for now.
- //
- call: function () {
- var s = parserInput.currentChar(), important = false, index = parserInput.i, elemIndex,
- elements, elem, e, c, args;
- if (s !== '.' && s !== '#') { return; }
- parserInput.save(); // stop us absorbing part of an invalid selector
- while (true) {
- elemIndex = parserInput.i;
- e = parserInput.$re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/);
- if (!e) {
- break;
- }
- elem = new(tree.Element)(c, e, elemIndex, env.currentFileInfo);
- if (elements) { elements.push(elem); } else { elements = [ elem ]; }
- c = parserInput.$char('>');
- }
- if (elements) {
- if (parserInput.$char('(')) {
- args = this.args(true).args;
- expectChar(')');
- }
- if (parsers.important()) {
- important = true;
- }
- if (parsers.end()) {
- parserInput.forget();
- return new(tree.mixin.Call)(elements, args, index, env.currentFileInfo, important);
- }
- }
- parserInput.restore();
- },
- args: function (isCall) {
- var parsers = parser.parsers, entities = parsers.entities,
- returner = { args:null, variadic: false },
- expressions = [], argsSemiColon = [], argsComma = [],
- isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg;
- parserInput.save();
- while (true) {
- if (isCall) {
- arg = parsers.detachedRuleset() || parsers.expression();
- } else {
- parserInput.commentStore.length = 0;
- if (parserInput.currentChar() === '.' && parserInput.$re(/^\.{3}/)) {
- returner.variadic = true;
- if (parserInput.$char(";") && !isSemiColonSeperated) {
- isSemiColonSeperated = true;
- }
- (isSemiColonSeperated ? argsSemiColon : argsComma)
- .push({ variadic: true });
- break;
- }
- arg = entities.variable() || entities.literal() || entities.keyword();
- }
- if (!arg) {
- break;
- }
- nameLoop = null;
- if (arg.throwAwayComments) {
- arg.throwAwayComments();
- }
- value = arg;
- var val = null;
- if (isCall) {
- // Variable
- if (arg.value && arg.value.length == 1) {
- val = arg.value[0];
- }
- } else {
- val = arg;
- }
- if (val && val instanceof tree.Variable) {
- if (parserInput.$char(':')) {
- if (expressions.length > 0) {
- if (isSemiColonSeperated) {
- error("Cannot mix ; and , as delimiter types");
- }
- expressionContainsNamed = true;
- }
- // we do not support setting a ruleset as a default variable - it doesn't make sense
- // However if we do want to add it, there is nothing blocking it, just don't error
- // and remove isCall dependency below
- value = (isCall && parsers.detachedRuleset()) || parsers.expression();
- if (!value) {
- if (isCall) {
- error("could not understand value for named argument");
- } else {
- parserInput.restore();
- returner.args = [];
- return returner;
- }
- }
- nameLoop = (name = val.name);
- } else if (!isCall && parserInput.$re(/^\.{3}/)) {
- returner.variadic = true;
- if (parserInput.$char(";") && !isSemiColonSeperated) {
- isSemiColonSeperated = true;
- }
- (isSemiColonSeperated ? argsSemiColon : argsComma)
- .push({ name: arg.name, variadic: true });
- break;
- } else if (!isCall) {
- name = nameLoop = val.name;
- value = null;
- }
- }
- if (value) {
- expressions.push(value);
- }
- argsComma.push({ name:nameLoop, value:value });
- if (parserInput.$char(',')) {
- continue;
- }
- if (parserInput.$char(';') || isSemiColonSeperated) {
- if (expressionContainsNamed) {
- error("Cannot mix ; and , as delimiter types");
- }
- isSemiColonSeperated = true;
- if (expressions.length > 1) {
- value = new(tree.Value)(expressions);
- }
- argsSemiColon.push({ name:name, value:value });
- name = null;
- expressions = [];
- expressionContainsNamed = false;
- }
- }
- parserInput.forget();
- returner.args = isSemiColonSeperated ? argsSemiColon : argsComma;
- return returner;
- },
- //
- // A Mixin definition, with a list of parameters
- //
- // .rounded (@radius: 2px, @color) {
- // ...
- // }
- //
- // Until we have a finer grained state-machine, we have to
- // do a look-ahead, to make sure we don't have a mixin call.
- // See the `rule` function for more information.
- //
- // We start by matching `.rounded (`, and then proceed on to
- // the argument list, which has optional default values.
- // We store the parameters in `params`, with a `value` key,
- // if there is a value, such as in the case of `@radius`.
- //
- // Once we've got our params list, and a closing `)`, we parse
- // the `{...}` block.
- //
- definition: function () {
- var name, params = [], match, ruleset, cond, variadic = false;
- if ((parserInput.currentChar() !== '.' && parserInput.currentChar() !== '#') ||
- parserInput.peek(/^[^{]*\}/)) {
- return;
- }
- parserInput.save();
- match = parserInput.$re(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/);
- if (match) {
- name = match[1];
- var argInfo = this.args(false);
- params = argInfo.args;
- variadic = argInfo.variadic;
- // .mixincall("@{a}");
- // looks a bit like a mixin definition..
- // also
- // .mixincall(@a: {rule: set;});
- // so we have to be nice and restore
- if (!parserInput.$char(')')) {
- parserInput.restore("Missing closing ')'");
- return;
- }
- parserInput.commentStore.length = 0;
- if (parserInput.$re(/^when/)) { // Guard
- cond = expect(parsers.conditions, 'expected condition');
- }
- ruleset = parsers.block();
- if (ruleset) {
- parserInput.forget();
- return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic);
- } else {
- parserInput.restore();
- }
- } else {
- parserInput.forget();
- }
- }
- },
- //
- // Entities are the smallest recognized token,
- // and can be found inside a rule's value.
- //
- entity: function () {
- var entities = this.entities;
- return this.comment() || entities.literal() || entities.variable() || entities.url() ||
- entities.call() || entities.keyword() || entities.javascript();
- },
- //
- // A Rule terminator. Note that we use `peek()` to check for '}',
- // because the `block` rule will be expecting it, but we still need to make sure
- // it's there, if ';' was ommitted.
- //
- end: function () {
- return parserInput.$char(';') || parserInput.peek('}');
- },
- //
- // IE's alpha function
- //
- // alpha(opacity=88)
- //
- alpha: function () {
- var value;
- if (! parserInput.$re(/^opacity=/i)) { return; }
- value = parserInput.$re(/^\d+/);
- if (!value) {
- value = expect(this.entities.variable, "Could not parse alpha");
- }
- expectChar(')');
- return new(tree.Alpha)(value);
- },
- //
- // A Selector Element
- //
- // div
- // + h1
- // #socks
- // input[type="text"]
- //
- // Elements are the building blocks for Selectors,
- // they are made out of a `Combinator` (see combinator rule),
- // and an element name, such as a tag a class, or `*`.
- //
- element: function () {
- var e, c, v, index = parserInput.i;
- c = this.combinator();
- e = parserInput.$re(/^(?:\d+\.\d+|\d+)%/) || parserInput.$re(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) ||
- parserInput.$char('*') || parserInput.$char('&') || this.attribute() || parserInput.$re(/^\([^()@]+\)/) || parserInput.$re(/^[\.#](?=@)/) ||
- this.entities.variableCurly();
- if (! e) {
- parserInput.save();
- if (parserInput.$char('(')) {
- if ((v = this.selector()) && parserInput.$char(')')) {
- e = new(tree.Paren)(v);
- parserInput.forget();
- } else {
- parserInput.restore("Missing closing ')'");
- }
- } else {
- parserInput.forget();
- }
- }
- if (e) { return new(tree.Element)(c, e, index, env.currentFileInfo); }
- },
- //
- // Combinators combine elements together, in a Selector.
- //
- // Because our parser isn't white-space sensitive, special care
- // has to be taken, when parsing the descendant combinator, ` `,
- // as it's an empty space. We have to check the previous character
- // in the input, to see if it's a ` ` character. More info on how
- // we deal with this in *combinator.js*.
- //
- combinator: function () {
- var c = parserInput.currentChar();
- if (c === '/') {
- parserInput.save();
- var slashedCombinator = parserInput.$re(/^\/[a-z]+\//i);
- if (slashedCombinator) {
- parserInput.forget();
- return new(tree.Combinator)(slashedCombinator);
- }
- parserInput.restore();
- }
- if (c === '>' || c === '+' || c === '~' || c === '|' || c === '^') {
- parserInput.i++;
- if (c === '^' && parserInput.currentChar() === '^') {
- c = '^^';
- parserInput.i++;
- }
- while (parserInput.isWhitespace()) { parserInput.i++; }
- return new(tree.Combinator)(c);
- } else if (parserInput.isWhitespace(-1)) {
- return new(tree.Combinator)(" ");
- } else {
- return new(tree.Combinator)(null);
- }
- },
- //
- // A CSS selector (see selector below)
- // with less extensions e.g. the ability to extend and guard
- //
- lessSelector: function () {
- return this.selector(true);
- },
- //
- // A CSS Selector
- //
- // .class > div + h1
- // li a:hover
- //
- // Selectors are made out of one or more Elements, see above.
- //
- selector: function (isLess) {
- var index = parserInput.i, elements, extendList, c, e, extend, when, condition;
- while ((isLess && (extend = this.extend())) || (isLess && (when = parserInput.$re(/^when/))) || (e = this.element())) {
- if (when) {
- condition = expect(this.conditions, 'expected condition');
- } else if (condition) {
- error("CSS guard can only be used at the end of selector");
- } else if (extend) {
- if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; }
- } else {
- if (extendList) { error("Extend can only be used at the end of selector"); }
- c = parserInput.currentChar();
- if (elements) { elements.push(e); } else { elements = [ e ]; }
- e = null;
- }
- if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') {
- break;
- }
- }
- if (elements) { return new(tree.Selector)(elements, extendList, condition, index, env.currentFileInfo); }
- if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); }
- },
- attribute: function () {
- if (! parserInput.$char('[')) { return; }
- var entities = this.entities,
- key, val, op;
- if (!(key = entities.variableCurly())) {
- key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/);
- }
- op = parserInput.$re(/^[|~*$^]?=/);
- if (op) {
- val = entities.quoted() || parserInput.$re(/^[0-9]+%/) || parserInput.$re(/^[\w-]+/) || entities.variableCurly();
- }
- expectChar(']');
- return new(tree.Attribute)(key, op, val);
- },
- //
- // The `block` rule is used by `ruleset` and `mixin.definition`.
- // It's a wrapper around the `primary` rule, with added `{}`.
- //
- block: function () {
- var content;
- if (parserInput.$char('{') && (content = this.primary()) && parserInput.$char('}')) {
- return content;
- }
- },
- blockRuleset: function() {
- var block = this.block();
- if (block) {
- block = new tree.Ruleset(null, block);
- }
- return block;
- },
- detachedRuleset: function() {
- var blockRuleset = this.blockRuleset();
- if (blockRuleset) {
- return new tree.DetachedRuleset(blockRuleset);
- }
- },
- //
- // div, .class, body > p {...}
- //
- ruleset: function () {
- var selectors, s, rules, debugInfo;
- parserInput.save();
- if (env.dumpLineNumbers) {
- debugInfo = getDebugInfo(parserInput.i);
- }
- while (true) {
- s = this.lessSelector();
- if (!s) {
- break;
- }
- if (selectors) { selectors.push(s); } else { selectors = [ s ]; }
- parserInput.commentStore.length = 0;
- if (s.condition && selectors.length > 1) {
- error("Guards are only currently allowed on a single selector.");
- }
- if (! parserInput.$char(',')) { break; }
- if (s.condition) {
- error("Guards are only currently allowed on a single selector.");
- }
- parserInput.commentStore.length = 0;
- }
- if (selectors && (rules = this.block())) {
- parserInput.forget();
- var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports);
- if (env.dumpLineNumbers) {
- ruleset.debugInfo = debugInfo;
- }
- return ruleset;
- } else {
- parserInput.restore();
- }
- },
- rule: function (tryAnonymous) {
- var name, value, startOfRule = parserInput.i, c = parserInput.currentChar(), important, merge, isVariable;
- if (c === '.' || c === '#' || c === '&') { return; }
- parserInput.save();
- name = this.variable() || this.ruleProperty();
- if (name) {
- isVariable = typeof name === "string";
- if (isVariable) {
- value = this.detachedRuleset();
- }
- parserInput.commentStore.length = 0;
- if (!value) {
- // a name returned by this.ruleProperty() is always an array of the form:
- // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"]
- // where each item is a tree.Keyword or tree.Variable
- merge = !isVariable && name.pop().value;
- // prefer to try to parse first if its a variable or we are compressing
- // but always fallback on the other one
- var tryValueFirst = !tryAnonymous && (env.compress || isVariable);
- if (tryValueFirst) {
- value = this.value();
- }
- if (!value) {
- value = this.anonymousValue();
- if (value) {
- parserInput.forget();
- // anonymous values absorb the end ';' which is reequired for them to work
- return new (tree.Rule)(name, value, false, merge, startOfRule, env.currentFileInfo);
- }
- }
- if (!tryValueFirst && !value) {
- value = this.value();
- }
- important = this.important();
- }
- if (value && this.end()) {
- parserInput.forget();
- return new (tree.Rule)(name, value, important, merge, startOfRule, env.currentFileInfo);
- } else {
- parserInput.restore();
- if (value && !tryAnonymous) {
- return this.rule(true);
- }
- }
- } else {
- parserInput.forget();
- }
- },
- anonymousValue: function () {
- var match = parserInput.$re(/^([^@+\/'"*`(;{}-]*);/);
- if (match) {
- return new(tree.Anonymous)(match[1]);
- }
- },
- //
- // An @import directive
- //
- // @import "lib";
- //
- // Depending on our environment, importing is done differently:
- // In the browser, it's an XHR request, in Node, it would be a
- // file-system operation. The function used for importing is
- // stored in `import`, which we pass to the Import constructor.
- //
- "import": function () {
- var path, features, index = parserInput.i;
- var dir = parserInput.$re(/^@import?\s+/);
- if (dir) {
- var options = (dir ? this.importOptions() : null) || {};
- if ((path = this.entities.quoted() || this.entities.url())) {
- features = this.mediaFeatures();
- if (!parserInput.$(';')) {
- parserInput.i = index;
- error("missing semi-colon or unrecognised media features on import");
- }
- features = features && new(tree.Value)(features);
- return new(tree.Import)(path, features, options, index, env.currentFileInfo);
- }
- else
- {
- parserInput.i = index;
- error("malformed import statement");
- }
- }
- },
- importOptions: function() {
- var o, options = {}, optionName, value;
- // list of options, surrounded by parens
- if (! parserInput.$char('(')) { return null; }
- do {
- o = this.importOption();
- if (o) {
- optionName = o;
- value = true;
- switch(optionName) {
- case "css":
- optionName = "less";
- value = false;
- break;
- case "once":
- optionName = "multiple";
- value = false;
- break;
- }
- options[optionName] = value;
- if (! parserInput.$char(',')) { break; }
- }
- } while (o);
- expectChar(')');
- return options;
- },
- importOption: function() {
- var opt = parserInput.$re(/^(less|css|multiple|once|inline|reference)/);
- if (opt) {
- return opt[1];
- }
- },
- mediaFeature: function () {
- var entities = this.entities, nodes = [], e, p;
- parserInput.save();
- do {
- e = entities.keyword() || entities.variable();
- if (e) {
- nodes.push(e);
- } else if (parserInput.$char('(')) {
- p = this.property();
- e = this.value();
- if (parserInput.$char(')')) {
- if (p && e) {
- nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, parserInput.i, env.currentFileInfo, true)));
- } else if (e) {
- nodes.push(new(tree.Paren)(e));
- } else {
- parserInput.restore("badly formed media feature definition");
- return null;
- }
- } else {
- parserInput.restore("Missing closing ')'");
- return null;
- }
- }
- } while (e);
- parserInput.forget();
- if (nodes.length > 0) {
- return new(tree.Expression)(nodes);
- }
- },
- mediaFeatures: function () {
- var entities = this.entities, features = [], e;
- do {
- e = this.mediaFeature();
- if (e) {
- features.push(e);
- if (! parserInput.$char(',')) { break; }
- } else {
- e = entities.variable();
- if (e) {
- features.push(e);
- if (! parserInput.$char(',')) { break; }
- }
- }
- } while (e);
- return features.length > 0 ? features : null;
- },
- media: function () {
- var features, rules, media, debugInfo;
- if (env.dumpLineNumbers) {
- debugInfo = getDebugInfo(parserInput.i);
- }
- if (parserInput.$re(/^@media/)) {
- features = this.mediaFeatures();
- rules = this.block();
- if (rules) {
- media = new(tree.Media)(rules, features, parserInput.i, env.currentFileInfo);
- if (env.dumpLineNumbers) {
- media.debugInfo = debugInfo;
- }
- return media;
- }
- }
- },
- //
- // A CSS Directive
- //
- // @charset "utf-8";
- //
- directive: function () {
- var index = parserInput.i, name, value, rules, nonVendorSpecificName,
- hasIdentifier, hasExpression, hasUnknown, hasBlock = true;
- if (parserInput.currentChar() !== '@') { return; }
- value = this['import']() || this.media();
- if (value) {
- return value;
- }
- parserInput.save();
- name = parserInput.$re(/^@[a-z-]+/);
- if (!name) { return; }
- nonVendorSpecificName = name;
- if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) {
- nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1);
- }
- switch(nonVendorSpecificName) {
- /*
- case "@font-face":
- case "@viewport":
- case "@top-left":
- case "@top-left-corner":
- case "@top-center":
- case "@top-right":
- case "@top-right-corner":
- case "@bottom-left":
- case "@bottom-left-corner":
- case "@bottom-center":
- case "@bottom-right":
- case "@bottom-right-corner":
- case "@left-top":
- case "@left-middle":
- case "@left-bottom":
- case "@right-top":
- case "@right-middle":
- case "@right-bottom":
- hasBlock = true;
- break;
- */
- case "@charset":
- hasIdentifier = true;
- hasBlock = false;
- break;
- case "@namespace":
- hasExpression = true;
- hasBlock = false;
- break;
- case "@keyframes":
- hasIdentifier = true;
- break;
- case "@host":
- case "@page":
- case "@document":
- case "@supports":
- hasUnknown = true;
- break;
- }
- parserInput.commentStore.length = 0;
- if (hasIdentifier) {
- value = this.entity();
- if (!value) {
- error("expected " + name + " identifier");
- }
- } else if (hasExpression) {
- value = this.expression();
- if (!value) {
- error("expected " + name + " expression");
- }
- } else if (hasUnknown) {
- value = (parserInput.$re(/^[^{;]+/) || '').trim();
- if (value) {
- value = new(tree.Anonymous)(value);
- }
- }
- if (hasBlock) {
- rules = this.blockRuleset();
- }
- if (rules || (!hasBlock && value && parserInput.$char(';'))) {
- parserInput.forget();
- return new(tree.Directive)(name, value, rules, index, env.currentFileInfo,
- env.dumpLineNumbers ? getDebugInfo(index) : null);
- }
- parserInput.restore("directive options not recognised");
- },
- //
- // A Value is a comma-delimited list of Expressions
- //
- // font-family: Baskerville, Georgia, serif;
- //
- // In a Rule, a Value represents everything after the `:`,
- // and before the `;`.
- //
- value: function () {
- var e, expressions = [];
- do {
- e = this.expression();
- if (e) {
- expressions.push(e);
- if (! parserInput.$char(',')) { break; }
- }
- } while(e);
- if (expressions.length > 0) {
- return new(tree.Value)(expressions);
- }
- },
- important: function () {
- if (parserInput.currentChar() === '!') {
- return parserInput.$re(/^! *important/);
- }
- },
- sub: function () {
- var a, e;
- if (parserInput.$char('(')) {
- a = this.addition();
- if (a) {
- e = new(tree.Expression)([a]);
- expectChar(')');
- e.parens = true;
- return e;
- }
- }
- },
- multiplication: function () {
- var m, a, op, operation, isSpaced;
- m = this.operand();
- if (m) {
- isSpaced = parserInput.isWhitespace(-1);
- while (true) {
- if (parserInput.peek(/^\/[*\/]/)) {
- break;
- }
- parserInput.save();
- op = parserInput.$char('/') || parserInput.$char('*');
- if (!op) { parserInput.forget(); break; }
- a = this.operand();
- if (!a) { parserInput.restore(); break; }
- parserInput.forget();
- m.parensInOp = true;
- a.parensInOp = true;
- operation = new(tree.Operation)(op, [operation || m, a], isSpaced);
- isSpaced = parserInput.isWhitespace(-1);
- }
- return operation || m;
- }
- },
- addition: function () {
- var m, a, op, operation, isSpaced;
- m = this.multiplication();
- if (m) {
- isSpaced = parserInput.isWhitespace(-1);
- while (true) {
- op = parserInput.$re(/^[-+]\s+/) || (!isSpaced && (parserInput.$char('+') || parserInput.$char('-')));
- if (!op) {
- break;
- }
- a = this.multiplication();
- if (!a) {
- break;
- }
- m.parensInOp = true;
- a.parensInOp = true;
- operation = new(tree.Operation)(op, [operation || m, a], isSpaced);
- isSpaced = parserInput.isWhitespace(-1);
- }
- return operation || m;
- }
- },
- conditions: function () {
- var a, b, index = parserInput.i, condition;
- a = this.condition();
- if (a) {
- while (true) {
- if (!parserInput.peek(/^,\s*(not\s*)?\(/) || !parserInput.$char(',')) {
- break;
- }
- b = this.condition();
- if (!b) {
- break;
- }
- condition = new(tree.Condition)('or', condition || a, b, index);
- }
- return condition || a;
- }
- },
- condition: function () {
- var entities = this.entities, index = parserInput.i, negate = false,
- a, b, c, op;
- if (parserInput.$re(/^not/)) { negate = true; }
- expectChar('(');
- a = this.addition() || entities.keyword() || entities.quoted();
- if (a) {
- op = parserInput.$re(/^(?:>=|<=|=<|[<=>])/);
- if (op) {
- b = this.addition() || entities.keyword() || entities.quoted();
- if (b) {
- c = new(tree.Condition)(op, a, b, index, negate);
- } else {
- error('expected expression');
- }
- } else {
- c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate);
- }
- expectChar(')');
- return parserInput.$re(/^and/) ? new(tree.Condition)('and', c, this.condition()) : c;
- }
- },
- //
- // An operand is anything that can be part of an operation,
- // such as a Color, or a Variable
- //
- operand: function () {
- var entities = this.entities, negate;
- if (parserInput.peek(/^-[@\(]/)) {
- negate = parserInput.$char('-');
- }
- var o = this.sub() || entities.dimension() ||
- entities.color() || entities.variable() ||
- entities.call();
- if (negate) {
- o.parensInOp = true;
- o = new(tree.Negative)(o);
- }
- return o;
- },
- //
- // Expressions either represent mathematical operations,
- // or white-space delimited Entities.
- //
- // 1px solid black
- // @var * 2
- //
- expression: function () {
- var entities = [], e, delim;
- do {
- e = this.comment();
- if (e) {
- entities.push(e);
- continue;
- }
- e = this.addition() || this.entity();
- if (e) {
- entities.push(e);
- // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here
- if (!parserInput.peek(/^\/[\/*]/)) {
- delim = parserInput.$char('/');
- if (delim) {
- entities.push(new(tree.Anonymous)(delim));
- }
- }
- }
- } while (e);
- if (entities.length > 0) {
- return new(tree.Expression)(entities);
- }
- },
- property: function () {
- var name = parserInput.$re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/);
- if (name) {
- return name[1];
- }
- },
- ruleProperty: function () {
- var name = [], index = [], s, k;
- parserInput.save();
- function match(re) {
- var i = parserInput.i,
- chunk = parserInput.$re(re);
- if (chunk) {
- index.push(i);
- return name.push(chunk[1]);
- }
- }
- match(/^(\*?)/);
- while (true) {
- if (!match(/^((?:[\w-]+)|(?:@\{[\w-]+\}))/)) {
- break;
- }
- }
- if ((name.length > 1) && match(/^((?:\+_|\+)?)\s*:/)) {
- parserInput.forget();
- // at last, we have the complete match now. move forward,
- // convert name particles to tree objects and return:
- if (name[0] === '') {
- name.shift();
- index.shift();
- }
- for (k = 0; k < name.length; k++) {
- s = name[k];
- name[k] = (s.charAt(0) !== '@') ?
- new(tree.Keyword)(s) :
- new(tree.Variable)('@' + s.slice(2, -1),
- index[k], env.currentFileInfo);
- }
- return name;
- }
- parserInput.restore();
- }
- }
- };
- parser.getInput = getInput;
- parser.getLocation = parserInput.getLocation;
- return parser;
- };
- Parser.serializeVars = function(vars) {
- var s = '';
- for (var name in vars) {
- if (Object.hasOwnProperty.call(vars, name)) {
- var value = vars[name];
- s += ((name[0] === '@') ? '' : '@') + name +': '+ value +
- ((('' + value).slice(-1) === ';') ? '' : ';');
- }
- }
- return s;
- };
- return Parser;
- };
- },{"../contexts.js":2,"../less-error.js":19,"../source-map-output":25,"../tree/index.js":43,"../visitor/index.js":66,"./imports.js":22,"./parser-input.js":23}],25:[function(require,module,exports){
- module.exports = function (environment) {
- var SourceMapOutput = function (options) {
- this._css = [];
- this._rootNode = options.rootNode;
- this._writeSourceMap = options.writeSourceMap;
- this._contentsMap = options.contentsMap;
- this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap;
- this._sourceMapFilename = options.sourceMapFilename;
- this._outputFilename = options.outputFilename;
- this._sourceMapURL = options.sourceMapURL;
- if (options.sourceMapBasepath) {
- this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/');
- }
- this._sourceMapRootpath = options.sourceMapRootpath;
- this._outputSourceFiles = options.outputSourceFiles;
- this._sourceMapGeneratorConstructor = environment.getSourceMapGenerator();
- if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') {
- this._sourceMapRootpath += '/';
- }
- this._lineNumber = 0;
- this._column = 0;
- };
- SourceMapOutput.prototype.normalizeFilename = function(filename) {
- filename = filename.replace(/\\/g, '/');
- if (this._sourceMapBasepath && filename.indexOf(this._sourceMapBasepath) === 0) {
- filename = filename.substring(this._sourceMapBasepath.length);
- if (filename.charAt(0) === '\\' || filename.charAt(0) === '/') {
- filename = filename.substring(1);
- }
- }
- return (this._sourceMapRootpath || "") + filename;
- };
- SourceMapOutput.prototype.add = function(chunk, fileInfo, index, mapLines) {
- //ignore adding empty strings
- if (!chunk) {
- return;
- }
- var lines,
- sourceLines,
- columns,
- sourceColumns,
- i;
- if (fileInfo) {
- var inputSource = this._contentsMap[fileInfo.filename];
- // remove vars/banner added to the top of the file
- if (this._contentsIgnoredCharsMap[fileInfo.filename]) {
- // adjust the index
- index -= this._contentsIgnoredCharsMap[fileInfo.filename];
- if (index < 0) { index = 0; }
- // adjust the source
- inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]);
- }
- inputSource = inputSource.substring(0, index);
- sourceLines = inputSource.split("\n");
- sourceColumns = sourceLines[sourceLines.length-1];
- }
- lines = chunk.split("\n");
- columns = lines[lines.length-1];
- if (fileInfo) {
- if (!mapLines) {
- this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column},
- original: { line: sourceLines.length, column: sourceColumns.length},
- source: this.normalizeFilename(fileInfo.filename)});
- } else {
- for(i = 0; i < lines.length; i++) {
- this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0},
- original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0},
- source: this.normalizeFilename(fileInfo.filename)});
- }
- }
- }
- if (lines.length === 1) {
- this._column += columns.length;
- } else {
- this._lineNumber += lines.length - 1;
- this._column = columns.length;
- }
- this._css.push(chunk);
- };
- SourceMapOutput.prototype.isEmpty = function() {
- return this._css.length === 0;
- };
- SourceMapOutput.prototype.toCSS = function(env) {
- this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null });
- if (this._outputSourceFiles) {
- for(var filename in this._contentsMap) {
- if (this._contentsMap.hasOwnProperty(filename))
- {
- var source = this._contentsMap[filename];
- if (this._contentsIgnoredCharsMap[filename]) {
- source = source.slice(this._contentsIgnoredCharsMap[filename]);
- }
- this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source);
- }
- }
- }
- this._rootNode.genCSS(env, this);
- if (this._css.length > 0) {
- var sourceMapURL,
- sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON());
- if (this._sourceMapURL) {
- sourceMapURL = this._sourceMapURL;
- } else if (this._sourceMapFilename) {
- sourceMapURL = this.normalizeFilename(this._sourceMapFilename);
- }
- if (this._writeSourceMap) {
- this._writeSourceMap(sourceMapContent);
- } else {
- sourceMapURL = "data:application/json;base64," + environment.encodeBase64(sourceMapContent);
- }
- if (sourceMapURL) {
- this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */");
- }
- }
- return this._css.join('');
- };
- return SourceMapOutput;
- };
- },{}],26:[function(require,module,exports){
- var Node = require("./node.js");
- var Alpha = function (val) {
- this.value = val;
- };
- Alpha.prototype = new Node();
- Alpha.prototype.type = "Alpha";
- Alpha.prototype.accept = function (visitor) {
- this.value = visitor.visit(this.value);
- };
- Alpha.prototype.eval = function (env) {
- if (this.value.eval) { return new Alpha(this.value.eval(env)); }
- return this;
- };
- Alpha.prototype.genCSS = function (env, output) {
- output.add("alpha(opacity=");
- if (this.value.genCSS) {
- this.value.genCSS(env, output);
- } else {
- output.add(this.value);
- }
- output.add(")");
- };
- module.exports = Alpha;
- },{"./node.js":51}],27:[function(require,module,exports){
- var Node = require("./node.js");
- var Anonymous = function (value, index, currentFileInfo, mapLines, rulesetLike) {
- this.value = value;
- this.index = index;
- this.mapLines = mapLines;
- this.currentFileInfo = currentFileInfo;
- this.rulesetLike = (typeof rulesetLike === 'undefined')? false : rulesetLike;
- };
- Anonymous.prototype = new Node();
- Anonymous.prototype.type = "Anonymous";
- Anonymous.prototype.eval = function () {
- return new Anonymous(this.value, this.index, this.currentFileInfo, this.mapLines, this.rulesetLike);
- };
- Anonymous.prototype.compare = function (x) {
- if (!x.toCSS) {
- return -1;
- }
- var left = this.toCSS(),
- right = x.toCSS();
- if (left === right) {
- return 0;
- }
- return left < right ? -1 : 1;
- };
- Anonymous.prototype.isRulesetLike = function() {
- return this.rulesetLike;
- };
- Anonymous.prototype.genCSS = function (env, output) {
- output.add(this.value, this.currentFileInfo, this.index, this.mapLines);
- };
- module.exports = Anonymous;
- },{"./node.js":51}],28:[function(require,module,exports){
- var Node = require("./node.js");
- var Assignment = function (key, val) {
- this.key = key;
- this.value = val;
- };
- Assignment.prototype = new Node();
- Assignment.prototype.type = "Assignment";
- Assignment.prototype.accept = function (visitor) {
- this.value = visitor.visit(this.value);
- };
- Assignment.prototype.eval = function (env) {
- if (this.value.eval) {
- return new(Assignment)(this.key, this.value.eval(env));
- }
- return this;
- };
- Assignment.prototype.genCSS = function (env, output) {
- output.add(this.key + '=');
- if (this.value.genCSS) {
- this.value.genCSS(env, output);
- } else {
- output.add(this.value);
- }
- };
- module.exports = Assignment;
- },{"./node.js":51}],29:[function(require,module,exports){
- var Node = require("./node.js");
- var Attribute = function (key, op, value) {
- this.key = key;
- this.op = op;
- this.value = value;
- };
- Attribute.prototype = new Node();
- Attribute.prototype.type = "Attribute";
- Attribute.prototype.eval = function (env) {
- return new(Attribute)(this.key.eval ? this.key.eval(env) : this.key,
- this.op, (this.value && this.value.eval) ? this.value.eval(env) : this.value);
- };
- Attribute.prototype.genCSS = function (env, output) {
- output.add(this.toCSS(env));
- };
- Attribute.prototype.toCSS = function (env) {
- var value = this.key.toCSS ? this.key.toCSS(env) : this.key;
- if (this.op) {
- value += this.op;
- value += (this.value.toCSS ? this.value.toCSS(env) : this.value);
- }
- return '[' + value + ']';
- };
- module.exports = Attribute;
- },{"./node.js":51}],30:[function(require,module,exports){
- var Node = require("./node.js"),
- FunctionCaller = require("../functions/function-caller.js");
- //
- // A function call node.
- //
- var Call = function (name, args, index, currentFileInfo) {
- this.name = name;
- this.args = args;
- this.index = index;
- this.currentFileInfo = currentFileInfo;
- };
- Call.prototype = new Node();
- Call.prototype.type = "Call";
- Call.prototype.accept = function (visitor) {
- if (this.args) {
- this.args = visitor.visitArray(this.args);
- }
- };
- //
- // When evaluating a function call,
- // we either find the function in `less.functions` [1],
- // in which case we call it, passing the evaluated arguments,
- // if this returns null or we cannot find the function, we
- // simply print it out as it appeared originally [2].
- //
- // The *functions.js* file contains the built-in functions.
- //
- // The reason why we evaluate the arguments, is in the case where
- // we try to pass a variable to a function, like: `saturate(@color)`.
- // The function should receive the value, not the variable.
- //
- Call.prototype.eval = function (env) {
- var args = this.args.map(function (a) { return a.eval(env); }),
- result, funcCaller = new FunctionCaller(this.name, env, this.currentFileInfo);
- if (funcCaller.isValid()) { // 1.
- try {
- result = funcCaller.call(args);
- if (result != null) {
- return result;
- }
- } catch (e) {
- throw { type: e.type || "Runtime",
- message: "error evaluating function `" + this.name + "`" +
- (e.message ? ': ' + e.message : ''),
- index: this.index, filename: this.currentFileInfo.filename };
- }
- }
- return new Call(this.name, args, this.index, this.currentFileInfo);
- };
- Call.prototype.genCSS = function (env, output) {
- output.add(this.name + "(", this.currentFileInfo, this.index);
- for(var i = 0; i < this.args.length; i++) {
- this.args[i].genCSS(env, output);
- if (i + 1 < this.args.length) {
- output.add(", ");
- }
- }
- output.add(")");
- };
- module.exports = Call;
- },{"../functions/function-caller.js":11,"./node.js":51}],31:[function(require,module,exports){
- var Node = require("./node.js"),
- colors = require("../data/colors.js");
- //
- // RGB Colors - #ff0014, #eee
- //
- var Color = function (rgb, a) {
- //
- // The end goal here, is to parse the arguments
- // into an integer triplet, such as `128, 255, 0`
- //
- // This facilitates operations and conversions.
- //
- if (Array.isArray(rgb)) {
- this.rgb = rgb;
- } else if (rgb.length == 6) {
- this.rgb = rgb.match(/.{2}/g).map(function (c) {
- return parseInt(c, 16);
- });
- } else {
- this.rgb = rgb.split('').map(function (c) {
- return parseInt(c + c, 16);
- });
- }
- this.alpha = typeof(a) === 'number' ? a : 1;
- };
- Color.prototype = new Node();
- Color.prototype.type = "Color";
- function clamp(v, max) {
- return Math.min(Math.max(v, 0), max);
- }
- function toHex(v) {
- return '#' + v.map(function (c) {
- c = clamp(Math.round(c), 255);
- return (c < 16 ? '0' : '') + c.toString(16);
- }).join('');
- }
- Color.prototype.luma = function () {
- var r = this.rgb[0] / 255,
- g = this.rgb[1] / 255,
- b = this.rgb[2] / 255;
- r = (r <= 0.03928) ? r / 12.92 : Math.pow(((r + 0.055) / 1.055), 2.4);
- g = (g <= 0.03928) ? g / 12.92 : Math.pow(((g + 0.055) / 1.055), 2.4);
- b = (b <= 0.03928) ? b / 12.92 : Math.pow(((b + 0.055) / 1.055), 2.4);
- return 0.2126 * r + 0.7152 * g + 0.0722 * b;
- };
- Color.prototype.genCSS = function (env, output) {
- output.add(this.toCSS(env));
- };
- Color.prototype.toCSS = function (env, doNotCompress) {
- var compress = env && env.compress && !doNotCompress, color, alpha;
- // `keyword` is set if this color was originally
- // converted from a named color string so we need
- // to respect this and try to output named color too.
- if (this.keyword) {
- return this.keyword;
- }
- // If we have some transparency, the only way to represent it
- // is via `rgba`. Otherwise, we use the hex representation,
- // which has better compatibility with older browsers.
- // Values are capped between `0` and `255`, rounded and zero-padded.
- alpha = this.fround(env, this.alpha);
- if (alpha < 1) {
- return "rgba(" + this.rgb.map(function (c) {
- return clamp(Math.round(c), 255);
- }).concat(clamp(alpha, 1))
- .join(',' + (compress ? '' : ' ')) + ")";
- }
- color = this.toRGB();
- if (compress) {
- var splitcolor = color.split('');
- // Convert color to short format
- if (splitcolor[1] === splitcolor[2] && splitcolor[3] === splitcolor[4] && splitcolor[5] === splitcolor[6]) {
- color = '#' + splitcolor[1] + splitcolor[3] + splitcolor[5];
- }
- }
- return color;
- };
- //
- // Operations have to be done per-channel, if not,
- // channels will spill onto each other. Once we have
- // our result, in the form of an integer triplet,
- // we create a new Color node to hold the result.
- //
- Color.prototype.operate = function (env, op, other) {
- var rgb = [];
- var alpha = this.alpha * (1 - other.alpha) + other.alpha;
- for (var c = 0; c < 3; c++) {
- rgb[c] = this._operate(env, op, this.rgb[c], other.rgb[c]);
- }
- return new(Color)(rgb, alpha);
- };
- Color.prototype.toRGB = function () {
- return toHex(this.rgb);
- };
- Color.prototype.toHSL = function () {
- var r = this.rgb[0] / 255,
- g = this.rgb[1] / 255,
- b = this.rgb[2] / 255,
- a = this.alpha;
- var max = Math.max(r, g, b), min = Math.min(r, g, b);
- var h, s, l = (max + min) / 2, d = max - min;
- if (max === min) {
- h = s = 0;
- } else {
- s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
- switch (max) {
- case r: h = (g - b) / d + (g < b ? 6 : 0); break;
- case g: h = (b - r) / d + 2; break;
- case b: h = (r - g) / d + 4; break;
- }
- h /= 6;
- }
- return { h: h * 360, s: s, l: l, a: a };
- };
- //Adapted from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript
- Color.prototype.toHSV = function () {
- var r = this.rgb[0] / 255,
- g = this.rgb[1] / 255,
- b = this.rgb[2] / 255,
- a = this.alpha;
- var max = Math.max(r, g, b), min = Math.min(r, g, b);
- var h, s, v = max;
- var d = max - min;
- if (max === 0) {
- s = 0;
- } else {
- s = d / max;
- }
- if (max === min) {
- h = 0;
- } else {
- switch(max){
- case r: h = (g - b) / d + (g < b ? 6 : 0); break;
- case g: h = (b - r) / d + 2; break;
- case b: h = (r - g) / d + 4; break;
- }
- h /= 6;
- }
- return { h: h * 360, s: s, v: v, a: a };
- };
- Color.prototype.toARGB = function () {
- return toHex([this.alpha * 255].concat(this.rgb));
- };
- Color.prototype.compare = function (x) {
- if (!x.rgb) {
- return -1;
- }
- return (x.rgb[0] === this.rgb[0] &&
- x.rgb[1] === this.rgb[1] &&
- x.rgb[2] === this.rgb[2] &&
- x.alpha === this.alpha) ? 0 : -1;
- };
- Color.fromKeyword = function(keyword) {
- var c, key = keyword.toLowerCase();
- if (colors.hasOwnProperty(key)) {
- c = new(Color)(colors[key].slice(1));
- }
- else if (key === "transparent") {
- c = new(Color)([0, 0, 0], 0);
- }
- if (c) {
- c.keyword = keyword;
- return c;
- }
- };
- module.exports = Color;
- },{"../data/colors.js":3,"./node.js":51}],32:[function(require,module,exports){
- var Node = require("./node.js");
- var Combinator = function (value) {
- if (value === ' ') {
- this.value = ' ';
- } else {
- this.value = value ? value.trim() : "";
- }
- };
- Combinator.prototype = new Node();
- Combinator.prototype.type = "Combinator";
- var _noSpaceCombinators = {
- '': true,
- ' ': true,
- '|': true
- };
- Combinator.prototype.genCSS = function (env, output) {
- var spaceOrEmpty = (env.compress || _noSpaceCombinators[this.value]) ? '' : ' ';
- output.add(spaceOrEmpty + this.value + spaceOrEmpty);
- };
- module.exports = Combinator;
- },{"./node.js":51}],33:[function(require,module,exports){
- var Node = require("./node.js"),
- getDebugInfo = require("./debug-info.js");
- var Comment = function (value, isLineComment, index, currentFileInfo) {
- this.value = value;
- this.isLineComment = isLineComment;
- this.currentFileInfo = currentFileInfo;
- };
- Comment.prototype = new Node();
- Comment.prototype.type = "Comment";
- Comment.prototype.genCSS = function (env, output) {
- if (this.debugInfo) {
- output.add(getDebugInfo(env, this), this.currentFileInfo, this.index);
- }
- output.add(this.value);
- };
- Comment.prototype.isSilent = function(env) {
- var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced),
- isCompressed = env.compress && this.value[2] !== "!";
- return this.isLineComment || isReference || isCompressed;
- };
- Comment.prototype.markReferenced = function () {
- this.isReferenced = true;
- };
- Comment.prototype.isRulesetLike = function(root) {
- return Boolean(root);
- };
- module.exports = Comment;
- },{"./debug-info.js":35,"./node.js":51}],34:[function(require,module,exports){
- var Node = require("./node.js");
- var Condition = function (op, l, r, i, negate) {
- this.op = op.trim();
- this.lvalue = l;
- this.rvalue = r;
- this.index = i;
- this.negate = negate;
- };
- Condition.prototype = new Node();
- Condition.prototype.type = "Condition";
- Condition.prototype.accept = function (visitor) {
- this.lvalue = visitor.visit(this.lvalue);
- this.rvalue = visitor.visit(this.rvalue);
- };
- Condition.prototype.eval = function (env) {
- var a = this.lvalue.eval(env),
- b = this.rvalue.eval(env);
- var i = this.index, result;
- result = (function (op) {
- switch (op) {
- case 'and':
- return a && b;
- case 'or':
- return a || b;
- default:
- if (a.compare) {
- result = a.compare(b);
- } else if (b.compare) {
- result = b.compare(a);
- } else {
- throw { type: "Type",
- message: "Unable to perform comparison",
- index: i };
- }
- switch (result) {
- case -1: return op === '<' || op === '=<' || op === '<=';
- case 0: return op === '=' || op === '>=' || op === '=<' || op === '<=';
- case 1: return op === '>' || op === '>=';
- }
- }
- })(this.op);
- return this.negate ? !result : result;
- };
- module.exports = Condition;
- },{"./node.js":51}],35:[function(require,module,exports){
- var debugInfo = function(env, ctx, lineSeperator) {
- var result="";
- if (env.dumpLineNumbers && !env.compress) {
- switch(env.dumpLineNumbers) {
- case 'comments':
- result = debugInfo.asComment(ctx);
- break;
- case 'mediaquery':
- result = debugInfo.asMediaQuery(ctx);
- break;
- case 'all':
- result = debugInfo.asComment(ctx) + (lineSeperator || "") + debugInfo.asMediaQuery(ctx);
- break;
- }
- }
- return result;
- };
- debugInfo.asComment = function(ctx) {
- return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n';
- };
- debugInfo.asMediaQuery = function(ctx) {
- return '@media -sass-debug-info{filename{font-family:' +
- ('file://' + ctx.debugInfo.fileName).replace(/([.:\/\\])/g, function (a) {
- if (a == '\\') {
- a = '\/';
- }
- return '\\' + a;
- }) +
- '}line{font-family:\\00003' + ctx.debugInfo.lineNumber + '}}\n';
- };
- module.exports = debugInfo;
- },{}],36:[function(require,module,exports){
- var Node = require("./node.js"),
- contexts = require("../contexts.js");
- var DetachedRuleset = function (ruleset, frames) {
- this.ruleset = ruleset;
- this.frames = frames;
- };
- DetachedRuleset.prototype = new Node();
- DetachedRuleset.prototype.type = "DetachedRuleset";
- DetachedRuleset.prototype.evalFirst = true;
- DetachedRuleset.prototype.accept = function (visitor) {
- this.ruleset = visitor.visit(this.ruleset);
- };
- DetachedRuleset.prototype.eval = function (env) {
- var frames = this.frames || env.frames.slice(0);
- return new DetachedRuleset(this.ruleset, frames);
- };
- DetachedRuleset.prototype.callEval = function (env) {
- return this.ruleset.eval(this.frames ? new(contexts.evalEnv)(env, this.frames.concat(env.frames)) : env);
- };
- module.exports = DetachedRuleset;
- },{"../contexts.js":2,"./node.js":51}],37:[function(require,module,exports){
- var Node = require("./node.js"),
- unitConversions = require("../data/unit-conversions.js"),
- Unit = require("./unit.js"),
- Color = require("./color.js");
- //
- // A number with a unit
- //
- var Dimension = function (value, unit) {
- this.value = parseFloat(value);
- this.unit = (unit && unit instanceof Unit) ? unit :
- new(Unit)(unit ? [unit] : undefined);
- };
- Dimension.prototype = new Node();
- Dimension.prototype.type = "Dimension";
- Dimension.prototype.accept = function (visitor) {
- this.unit = visitor.visit(this.unit);
- };
- Dimension.prototype.eval = function (env) {
- return this;
- };
- Dimension.prototype.toColor = function () {
- return new(Color)([this.value, this.value, this.value]);
- };
- Dimension.prototype.genCSS = function (env, output) {
- if ((env && env.strictUnits) && !this.unit.isSingular()) {
- throw new Error("Multiple units in dimension. Correct the units or use the unit function. Bad unit: "+this.unit.toString());
- }
- var value = this.fround(env, this.value),
- strValue = String(value);
- if (value !== 0 && value < 0.000001 && value > -0.000001) {
- // would be output 1e-6 etc.
- strValue = value.toFixed(20).replace(/0+$/, "");
- }
- if (env && env.compress) {
- // Zero values doesn't need a unit
- if (value === 0 && this.unit.isLength()) {
- output.add(strValue);
- return;
- }
- // Float values doesn't need a leading zero
- if (value > 0 && value < 1) {
- strValue = (strValue).substr(1);
- }
- }
- output.add(strValue);
- this.unit.genCSS(env, output);
- };
- // In an operation between two Dimensions,
- // we default to the first Dimension's unit,
- // so `1px + 2` will yield `3px`.
- Dimension.prototype.operate = function (env, op, other) {
- /*jshint noempty:false */
- var value = this._operate(env, op, this.value, other.value),
- unit = this.unit.clone();
- if (op === '+' || op === '-') {
- if (unit.numerator.length === 0 && unit.denominator.length === 0) {
- unit.numerator = other.unit.numerator.slice(0);
- unit.denominator = other.unit.denominator.slice(0);
- } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) {
- // do nothing
- } else {
- other = other.convertTo(this.unit.usedUnits());
- if(env.strictUnits && other.unit.toString() !== unit.toString()) {
- throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '" + unit.toString() +
- "' and '" + other.unit.toString() + "'.");
- }
- value = this._operate(env, op, this.value, other.value);
- }
- } else if (op === '*') {
- unit.numerator = unit.numerator.concat(other.unit.numerator).sort();
- unit.denominator = unit.denominator.concat(other.unit.denominator).sort();
- unit.cancel();
- } else if (op === '/') {
- unit.numerator = unit.numerator.concat(other.unit.denominator).sort();
- unit.denominator = unit.denominator.concat(other.unit.numerator).sort();
- unit.cancel();
- }
- return new(Dimension)(value, unit);
- };
- Dimension.prototype.compare = function (other) {
- if (other instanceof Dimension) {
- var a, b,
- aValue, bValue;
- if (this.unit.isEmpty() || other.unit.isEmpty()) {
- a = this;
- b = other;
- } else {
- a = this.unify();
- b = other.unify();
- if (a.unit.compare(b.unit) !== 0) {
- return -1;
- }
- }
- aValue = a.value;
- bValue = b.value;
- if (bValue > aValue) {
- return -1;
- } else if (bValue < aValue) {
- return 1;
- } else {
- return 0;
- }
- } else {
- return -1;
- }
- };
- Dimension.prototype.unify = function () {
- return this.convertTo({ length: 'px', duration: 's', angle: 'rad' });
- };
- Dimension.prototype.convertTo = function (conversions) {
- var value = this.value, unit = this.unit.clone(),
- i, groupName, group, targetUnit, derivedConversions = {}, applyUnit;
- if (typeof conversions === 'string') {
- for(i in unitConversions) {
- if (unitConversions[i].hasOwnProperty(conversions)) {
- derivedConversions = {};
- derivedConversions[i] = conversions;
- }
- }
- conversions = derivedConversions;
- }
- applyUnit = function (atomicUnit, denominator) {
- /*jshint loopfunc:true */
- if (group.hasOwnProperty(atomicUnit)) {
- if (denominator) {
- value = value / (group[atomicUnit] / group[targetUnit]);
- } else {
- value = value * (group[atomicUnit] / group[targetUnit]);
- }
- return targetUnit;
- }
- return atomicUnit;
- };
- for (groupName in conversions) {
- if (conversions.hasOwnProperty(groupName)) {
- targetUnit = conversions[groupName];
- group = unitConversions[groupName];
- unit.map(applyUnit);
- }
- }
- unit.cancel();
- return new(Dimension)(value, unit);
- };
- module.exports = Dimension;
- },{"../data/unit-conversions.js":5,"./color.js":31,"./node.js":51,"./unit.js":60}],38:[function(require,module,exports){
- var Node = require("./node.js"),
- Ruleset = require("./ruleset.js");
- var Directive = function (name, value, rules, index, currentFileInfo, debugInfo) {
- this.name = name;
- this.value = value;
- if (rules) {
- this.rules = rules;
- this.rules.allowImports = true;
- }
- this.index = index;
- this.currentFileInfo = currentFileInfo;
- this.debugInfo = debugInfo;
- };
- Directive.prototype = new Node();
- Directive.prototype.type = "Directive";
- Directive.prototype.accept = function (visitor) {
- var value = this.value, rules = this.rules;
- if (rules) {
- rules = visitor.visit(rules);
- }
- if (value) {
- value = visitor.visit(value);
- }
- };
- Directive.prototype.isRulesetLike = function() {
- return this.rules || !this.isCharset();
- };
- Directive.prototype.isCharset = function() {
- return "@charset" === this.name;
- };
- Directive.prototype.genCSS = function (env, output) {
- var value = this.value, rules = this.rules;
- output.add(this.name, this.currentFileInfo, this.index);
- if (value) {
- output.add(' ');
- value.genCSS(env, output);
- }
- if (rules) {
- this.outputRuleset(env, output, [rules]);
- } else {
- output.add(';');
- }
- };
- Directive.prototype.eval = function (env) {
- var value = this.value, rules = this.rules;
- if (value) {
- value = value.eval(env);
- }
- if (rules) {
- rules = rules.eval(env);
- rules.root = true;
- }
- return new(Directive)(this.name, value, rules,
- this.index, this.currentFileInfo, this.debugInfo);
- };
- Directive.prototype.variable = function (name) { if (this.rules) return Ruleset.prototype.variable.call(this.rules, name); };
- Directive.prototype.find = function () { if (this.rules) return Ruleset.prototype.find.apply(this.rules, arguments); };
- Directive.prototype.rulesets = function () { if (this.rules) return Ruleset.prototype.rulesets.apply(this.rules); };
- Directive.prototype.markReferenced = function () {
- var i, rules;
- this.isReferenced = true;
- if (this.rules) {
- rules = this.rules.rules;
- for (i = 0; i < rules.length; i++) {
- if (rules[i].markReferenced) {
- rules[i].markReferenced();
- }
- }
- }
- };
- Directive.prototype.outputRuleset = function (env, output, rules) {
- var ruleCnt = rules.length, i;
- env.tabLevel = (env.tabLevel | 0) + 1;
- // Compressed
- if (env.compress) {
- output.add('{');
- for (i = 0; i < ruleCnt; i++) {
- rules[i].genCSS(env, output);
- }
- output.add('}');
- env.tabLevel--;
- return;
- }
- // Non-compressed
- var tabSetStr = '\n' + Array(env.tabLevel).join(" "), tabRuleStr = tabSetStr + " ";
- if (!ruleCnt) {
- output.add(" {" + tabSetStr + '}');
- } else {
- output.add(" {" + tabRuleStr);
- rules[0].genCSS(env, output);
- for (i = 1; i < ruleCnt; i++) {
- output.add(tabRuleStr);
- rules[i].genCSS(env, output);
- }
- output.add(tabSetStr + '}');
- }
- env.tabLevel--;
- };
- module.exports = Directive;
- },{"./node.js":51,"./ruleset.js":57}],39:[function(require,module,exports){
- var Node = require("./node.js"),
- Combinator = require("./combinator.js");
- var Element = function (combinator, value, index, currentFileInfo) {
- this.combinator = combinator instanceof Combinator ?
- combinator : new(Combinator)(combinator);
- if (typeof(value) === 'string') {
- this.value = value.trim();
- } else if (value) {
- this.value = value;
- } else {
- this.value = "";
- }
- this.index = index;
- this.currentFileInfo = currentFileInfo;
- };
- Element.prototype = new Node();
- Element.prototype.type = "Element";
- Element.prototype.accept = function (visitor) {
- var value = this.value;
- this.combinator = visitor.visit(this.combinator);
- if (typeof value === "object") {
- this.value = visitor.visit(value);
- }
- };
- Element.prototype.eval = function (env) {
- return new(Element)(this.combinator,
- this.value.eval ? this.value.eval(env) : this.value,
- this.index,
- this.currentFileInfo);
- };
- Element.prototype.genCSS = function (env, output) {
- output.add(this.toCSS(env), this.currentFileInfo, this.index);
- };
- Element.prototype.toCSS = function (env) {
- var value = (this.value.toCSS ? this.value.toCSS(env) : this.value);
- if (value === '' && this.combinator.value.charAt(0) === '&') {
- return '';
- } else {
- return this.combinator.toCSS(env || {}) + value;
- }
- };
- module.exports = Element;
- },{"./combinator.js":32,"./node.js":51}],40:[function(require,module,exports){
- var Node = require("./node.js"),
- Paren = require("./paren.js"),
- Comment = require("./comment.js");
- var Expression = function (value) { this.value = value; };
- Expression.prototype = new Node();
- Expression.prototype.type = "Expression";
- Expression.prototype.accept = function (visitor) {
- if (this.value) {
- this.value = visitor.visitArray(this.value);
- }
- };
- Expression.prototype.eval = function (env) {
- var returnValue,
- inParenthesis = this.parens && !this.parensInOp,
- doubleParen = false;
- if (inParenthesis) {
- env.inParenthesis();
- }
- if (this.value.length > 1) {
- returnValue = new(Expression)(this.value.map(function (e) {
- return e.eval(env);
- }));
- } else if (this.value.length === 1) {
- if (this.value[0].parens && !this.value[0].parensInOp) {
- doubleParen = true;
- }
- returnValue = this.value[0].eval(env);
- } else {
- returnValue = this;
- }
- if (inParenthesis) {
- env.outOfParenthesis();
- }
- if (this.parens && this.parensInOp && !(env.isMathOn()) && !doubleParen) {
- returnValue = new(Paren)(returnValue);
- }
- return returnValue;
- };
- Expression.prototype.genCSS = function (env, output) {
- for(var i = 0; i < this.value.length; i++) {
- this.value[i].genCSS(env, output);
- if (i + 1 < this.value.length) {
- output.add(" ");
- }
- }
- };
- Expression.prototype.throwAwayComments = function () {
- this.value = this.value.filter(function(v) {
- return !(v instanceof Comment);
- });
- };
- module.exports = Expression;
- },{"./comment.js":33,"./node.js":51,"./paren.js":53}],41:[function(require,module,exports){
- var Node = require("./node.js");
- var Extend = function Extend(selector, option, index) {
- this.selector = selector;
- this.option = option;
- this.index = index;
- this.object_id = Extend.next_id++;
- this.parent_ids = [this.object_id];
- switch(option) {
- case "all":
- this.allowBefore = true;
- this.allowAfter = true;
- break;
- default:
- this.allowBefore = false;
- this.allowAfter = false;
- break;
- }
- };
- Extend.next_id = 0;
- Extend.prototype = new Node();
- Extend.prototype.type = "Extend";
- Extend.prototype.accept = function (visitor) {
- this.selector = visitor.visit(this.selector);
- };
- Extend.prototype.eval = function (env) {
- return new(Extend)(this.selector.eval(env), this.option, this.index);
- };
- Extend.prototype.clone = function (env) {
- return new(Extend)(this.selector, this.option, this.index);
- };
- Extend.prototype.findSelfSelectors = function (selectors) {
- var selfElements = [],
- i,
- selectorElements;
- for(i = 0; i < selectors.length; i++) {
- selectorElements = selectors[i].elements;
- // duplicate the logic in genCSS function inside the selector node.
- // future TODO - move both logics into the selector joiner visitor
- if (i > 0 && selectorElements.length && selectorElements[0].combinator.value === "") {
- selectorElements[0].combinator.value = ' ';
- }
- selfElements = selfElements.concat(selectors[i].elements);
- }
- this.selfSelectors = [{ elements: selfElements }];
- };
- module.exports = Extend;
- },{"./node.js":51}],42:[function(require,module,exports){
- var Node = require("./node.js"),
- Media = require("./media.js"),
- URL = require("./url.js"),
- Quoted = require("./quoted.js"),
- Ruleset = require("./ruleset.js"),
- Anonymous = require("./anonymous.js");
- //
- // CSS @import node
- //
- // The general strategy here is that we don't want to wait
- // for the parsing to be completed, before we start importing
- // the file. That's because in the context of a browser,
- // most of the time will be spent waiting for the server to respond.
- //
- // On creation, we push the import path to our import queue, though
- // `import,push`, we also pass it a callback, which it'll call once
- // the file has been fetched, and parsed.
- //
- var Import = function (path, features, options, index, currentFileInfo) {
- this.options = options;
- this.index = index;
- this.path = path;
- this.features = features;
- this.currentFileInfo = currentFileInfo;
- if (this.options.less !== undefined || this.options.inline) {
- this.css = !this.options.less || this.options.inline;
- } else {
- var pathValue = this.getPath();
- if (pathValue && /css([\?;].*)?$/.test(pathValue)) {
- this.css = true;
- }
- }
- };
- //
- // The actual import node doesn't return anything, when converted to CSS.
- // The reason is that it's used at the evaluation stage, so that the rules
- // it imports can be treated like any other rules.
- //
- // In `eval`, we make sure all Import nodes get evaluated, recursively, so
- // we end up with a flat structure, which can easily be imported in the parent
- // ruleset.
- //
- Import.prototype = new Node();
- Import.prototype.type = "Import";
- Import.prototype.accept = function (visitor) {
- if (this.features) {
- this.features = visitor.visit(this.features);
- }
- this.path = visitor.visit(this.path);
- if (!this.options.inline && this.root) {
- this.root = visitor.visit(this.root);
- }
- };
- Import.prototype.genCSS = function (env, output) {
- if (this.css) {
- output.add("@import ", this.currentFileInfo, this.index);
- this.path.genCSS(env, output);
- if (this.features) {
- output.add(" ");
- this.features.genCSS(env, output);
- }
- output.add(';');
- }
- };
- Import.prototype.getPath = function () {
- if (this.path instanceof Quoted) {
- var path = this.path.value;
- return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less';
- } else if (this.path instanceof URL) {
- return this.path.value.value;
- }
- return null;
- };
- Import.prototype.evalForImport = function (env) {
- return new(Import)(this.path.eval(env), this.features, this.options, this.index, this.currentFileInfo);
- };
- Import.prototype.evalPath = function (env) {
- var path = this.path.eval(env);
- var rootpath = this.currentFileInfo && this.currentFileInfo.rootpath;
- if (!(path instanceof URL)) {
- if (rootpath) {
- var pathValue = path.value;
- // Add the base path if the import is relative
- if (pathValue && env.isPathRelative(pathValue)) {
- path.value = rootpath +pathValue;
- }
- }
- path.value = env.normalizePath(path.value);
- }
- return path;
- };
- Import.prototype.eval = function (env) {
- var ruleset, features = this.features && this.features.eval(env);
- if (this.skip) {
- if (typeof this.skip === "function") {
- this.skip = this.skip();
- }
- if (this.skip) {
- return [];
- }
- }
- if (this.options.inline) {
- //todo needs to reference css file not import
- var contents = new(Anonymous)(this.root, 0, {filename: this.importedFilename}, true, true);
- return this.features ? new(Media)([contents], this.features.value) : [contents];
- } else if (this.css) {
- var newImport = new(Import)(this.evalPath(env), features, this.options, this.index);
- if (!newImport.css && this.error) {
- throw this.error;
- }
- return newImport;
- } else {
- ruleset = new(Ruleset)(null, this.root.rules.slice(0));
- ruleset.evalImports(env);
- return this.features ? new(Media)(ruleset.rules, this.features.value) : ruleset.rules;
- }
- };
- module.exports = Import;
- },{"./anonymous.js":27,"./media.js":47,"./node.js":51,"./quoted.js":54,"./ruleset.js":57,"./url.js":61}],43:[function(require,module,exports){
- var tree = {};
- tree.Alpha = require('./alpha');
- tree.Color = require('./color');
- tree.Directive = require('./directive');
- tree.DetachedRuleset = require('./detached-ruleset');
- tree.Operation = require('./operation');
- tree.Dimension = require('./dimension');
- tree.Unit = require('./unit');
- tree.Keyword = require('./keyword');
- tree.Variable = require('./variable');
- tree.Ruleset = require('./ruleset');
- tree.Element = require('./element');
- tree.Attribute = require('./attribute');
- tree.Combinator = require('./combinator');
- tree.Selector = require('./selector');
- tree.Quoted = require('./quoted');
- tree.Expression = require('./expression');
- tree.Rule = require('./rule');
- tree.Call = require('./call');
- tree.URL = require('./url');
- tree.Import = require('./import');
- tree.mixin = {
- Call: require('./mixin-call'),
- Definition: require('./mixin-definition')
- };
- tree.Comment = require('./comment');
- tree.Anonymous = require('./anonymous');
- tree.Value = require('./value');
- tree.JavaScript = require('./javascript');
- tree.Assignment = require('./assignment');
- tree.Condition = require('./condition');
- tree.Paren = require('./paren');
- tree.Media = require('./media');
- tree.UnicodeDescriptor = require('./unicode-descriptor');
- tree.Negative = require('./negative');
- tree.Extend = require('./extend');
- tree.RulesetCall = require('./ruleset-call');
- module.exports = tree;
- },{"./alpha":26,"./anonymous":27,"./assignment":28,"./attribute":29,"./call":30,"./color":31,"./combinator":32,"./comment":33,"./condition":34,"./detached-ruleset":36,"./dimension":37,"./directive":38,"./element":39,"./expression":40,"./extend":41,"./import":42,"./javascript":44,"./keyword":46,"./media":47,"./mixin-call":48,"./mixin-definition":49,"./negative":50,"./operation":52,"./paren":53,"./quoted":54,"./rule":55,"./ruleset":57,"./ruleset-call":56,"./selector":58,"./unicode-descriptor":59,"./unit":60,"./url":61,"./value":62,"./variable":63}],44:[function(require,module,exports){
- var JsEvalNode = require("./js-eval-node.js"),
- Dimension = require("./dimension.js"),
- Quoted = require("./quoted.js"),
- Anonymous = require("./anonymous.js");
- var JavaScript = function (string, index, escaped) {
- this.escaped = escaped;
- this.expression = string;
- this.index = index;
- };
- JavaScript.prototype = new JsEvalNode();
- JavaScript.prototype.type = "JavaScript";
- JavaScript.prototype.eval = function(env) {
- var result = this.evaluateJavaScript(this.expression, env);
- if (typeof(result) === 'number') {
- return new(Dimension)(result);
- } else if (typeof(result) === 'string') {
- return new(Quoted)('"' + result + '"', result, this.escaped, this.index);
- } else if (Array.isArray(result)) {
- return new(Anonymous)(result.join(', '));
- } else {
- return new(Anonymous)(result);
- }
- };
- module.exports = JavaScript;
- },{"./anonymous.js":27,"./dimension.js":37,"./js-eval-node.js":45,"./quoted.js":54}],45:[function(require,module,exports){
- var Node = require("./node.js"),
- Variable = require("./variable.js");
- var jsEvalNode = function() {
- };
- jsEvalNode.prototype = new Node();
- jsEvalNode.prototype.evaluateJavaScript = function (expression, env) {
- var result,
- that = this,
- context = {};
- if (env.javascriptEnabled !== undefined && !env.javascriptEnabled) {
- throw { message: "You are using JavaScript, which has been disabled." ,
- index: this.index };
- }
- expression = expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
- return that.jsify(new(Variable)('@' + name, that.index).eval(env));
- });
- try {
- expression = new(Function)('return (' + expression + ')');
- } catch (e) {
- throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" ,
- index: this.index };
- }
- var variables = env.frames[0].variables();
- for (var k in variables) {
- if (variables.hasOwnProperty(k)) {
- /*jshint loopfunc:true */
- context[k.slice(1)] = {
- value: variables[k].value,
- toJS: function () {
- return this.value.eval(env).toCSS();
- }
- };
- }
- }
- try {
- result = expression.call(context);
- } catch (e) {
- throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" ,
- index: this.index };
- }
- return result;
- };
- jsEvalNode.prototype.jsify = function (obj) {
- if (Array.isArray(obj.value) && (obj.value.length > 1)) {
- return '[' + obj.value.map(function (v) { return v.toCSS(); }).join(', ') + ']';
- } else {
- return obj.toCSS();
- }
- };
- module.exports = jsEvalNode;
- },{"./node.js":51,"./variable.js":63}],46:[function(require,module,exports){
- var Node = require("./node.js");
- var Keyword = function (value) { this.value = value; };
- Keyword.prototype = new Node();
- Keyword.prototype.type = "Keyword";
- Keyword.prototype.genCSS = function (env, output) {
- if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; }
- output.add(this.value);
- };
- Keyword.prototype.compare = function (other) {
- if (other instanceof Keyword) {
- return other.value === this.value ? 0 : 1;
- } else {
- return -1;
- }
- };
- Keyword.True = new(Keyword)('true');
- Keyword.False = new(Keyword)('false');
- module.exports = Keyword;
- },{"./node.js":51}],47:[function(require,module,exports){
- var Ruleset = require("./ruleset.js"),
- Value = require("./value.js"),
- Element = require("./element.js"),
- Selector = require("./selector.js"),
- Anonymous = require("./anonymous.js"),
- Expression = require("./expression.js"),
- Directive = require("./directive.js");
- var Media = function (value, features, index, currentFileInfo) {
- this.index = index;
- this.currentFileInfo = currentFileInfo;
- var selectors = this.emptySelectors();
- this.features = new(Value)(features);
- this.rules = [new(Ruleset)(selectors, value)];
- this.rules[0].allowImports = true;
- };
- Media.prototype = new Directive();
- Media.prototype.type = "Media";
- Media.prototype.isRulesetLike = true;
- Media.prototype.accept = function (visitor) {
- if (this.features) {
- this.features = visitor.visit(this.features);
- }
- if (this.rules) {
- this.rules = visitor.visitArray(this.rules);
- }
- };
- Media.prototype.genCSS = function (env, output) {
- output.add('@media ', this.currentFileInfo, this.index);
- this.features.genCSS(env, output);
- this.outputRuleset(env, output, this.rules);
- };
- Media.prototype.eval = function (env) {
- if (!env.mediaBlocks) {
- env.mediaBlocks = [];
- env.mediaPath = [];
- }
- var media = new(Media)(null, [], this.index, this.currentFileInfo);
- if(this.debugInfo) {
- this.rules[0].debugInfo = this.debugInfo;
- media.debugInfo = this.debugInfo;
- }
- var strictMathBypass = false;
- if (!env.strictMath) {
- strictMathBypass = true;
- env.strictMath = true;
- }
- try {
- media.features = this.features.eval(env);
- }
- finally {
- if (strictMathBypass) {
- env.strictMath = false;
- }
- }
- env.mediaPath.push(media);
- env.mediaBlocks.push(media);
- env.frames.unshift(this.rules[0]);
- media.rules = [this.rules[0].eval(env)];
- env.frames.shift();
- env.mediaPath.pop();
- return env.mediaPath.length === 0 ? media.evalTop(env) :
- media.evalNested(env);
- };
- //TODO merge with directive
- Media.prototype.variable = function (name) { return Ruleset.prototype.variable.call(this.rules[0], name); };
- Media.prototype.find = function () { return Ruleset.prototype.find.apply(this.rules[0], arguments); };
- Media.prototype.rulesets = function () { return Ruleset.prototype.rulesets.apply(this.rules[0]); };
- Media.prototype.emptySelectors = function() {
- var el = new(Element)('', '&', this.index, this.currentFileInfo),
- sels = [new(Selector)([el], null, null, this.index, this.currentFileInfo)];
- sels[0].mediaEmpty = true;
- return sels;
- };
- Media.prototype.markReferenced = function () {
- var i, rules = this.rules[0].rules;
- this.rules[0].markReferenced();
- this.isReferenced = true;
- for (i = 0; i < rules.length; i++) {
- if (rules[i].markReferenced) {
- rules[i].markReferenced();
- }
- }
- };
- Media.prototype.evalTop = function (env) {
- var result = this;
- // Render all dependent Media blocks.
- if (env.mediaBlocks.length > 1) {
- var selectors = this.emptySelectors();
- result = new(Ruleset)(selectors, env.mediaBlocks);
- result.multiMedia = true;
- }
- delete env.mediaBlocks;
- delete env.mediaPath;
- return result;
- };
- Media.prototype.evalNested = function (env) {
- var i, value,
- path = env.mediaPath.concat([this]);
- // Extract the media-query conditions separated with `,` (OR).
- for (i = 0; i < path.length; i++) {
- value = path[i].features instanceof Value ?
- path[i].features.value : path[i].features;
- path[i] = Array.isArray(value) ? value : [value];
- }
- // Trace all permutations to generate the resulting media-query.
- //
- // (a, b and c) with nested (d, e) ->
- // a and d
- // a and e
- // b and c and d
- // b and c and e
- this.features = new(Value)(this.permute(path).map(function (path) {
- path = path.map(function (fragment) {
- return fragment.toCSS ? fragment : new(Anonymous)(fragment);
- });
- for(i = path.length - 1; i > 0; i--) {
- path.splice(i, 0, new(Anonymous)("and"));
- }
- return new(Expression)(path);
- }));
- // Fake a tree-node that doesn't output anything.
- return new(Ruleset)([], []);
- };
- Media.prototype.permute = function (arr) {
- if (arr.length === 0) {
- return [];
- } else if (arr.length === 1) {
- return arr[0];
- } else {
- var result = [];
- var rest = this.permute(arr.slice(1));
- for (var i = 0; i < rest.length; i++) {
- for (var j = 0; j < arr[0].length; j++) {
- result.push([arr[0][j]].concat(rest[i]));
- }
- }
- return result;
- }
- };
- Media.prototype.bubbleSelectors = function (selectors) {
- if (!selectors)
- return;
- this.rules = [new(Ruleset)(selectors.slice(0), [this.rules[0]])];
- };
- module.exports = Media;
- },{"./anonymous.js":27,"./directive.js":38,"./element.js":39,"./expression.js":40,"./ruleset.js":57,"./selector.js":58,"./value.js":62}],48:[function(require,module,exports){
- var Node = require("./node.js"),
- Selector = require("./selector.js"),
- MixinDefinition = require("./mixin-definition.js"),
- defaultFunc = require("../functions/default.js");
- var MixinCall = function (elements, args, index, currentFileInfo, important) {
- this.selector = new(Selector)(elements);
- this.arguments = (args && args.length) ? args : null;
- this.index = index;
- this.currentFileInfo = currentFileInfo;
- this.important = important;
- };
- MixinCall.prototype = new Node();
- MixinCall.prototype.type = "MixinCall";
- MixinCall.prototype.accept = function (visitor) {
- if (this.selector) {
- this.selector = visitor.visit(this.selector);
- }
- if (this.arguments) {
- this.arguments = visitor.visitArray(this.arguments);
- }
- };
- MixinCall.prototype.eval = function (env) {
- var mixins, mixin, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule,
- candidates = [], candidate, conditionResult = [],
- defaultResult, defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset;
- args = this.arguments && this.arguments.map(function (a) {
- return { name: a.name, value: a.value.eval(env) };
- });
- for (i = 0; i < env.frames.length; i++) {
- if ((mixins = env.frames[i].find(this.selector)).length > 0) {
- isOneFound = true;
- // To make `default()` function independent of definition order we have two "subpasses" here.
- // At first we evaluate each guard *twice* (with `default() == true` and `default() == false`),
- // and build candidate list with corresponding flags. Then, when we know all possible matches,
- // we make a final decision.
- for (m = 0; m < mixins.length; m++) {
- mixin = mixins[m];
- isRecursive = false;
- for(f = 0; f < env.frames.length; f++) {
- if ((!(mixin instanceof MixinDefinition)) && mixin === (env.frames[f].originalRuleset || env.frames[f])) {
- isRecursive = true;
- break;
- }
- }
- if (isRecursive) {
- continue;
- }
- if (mixin.matchArgs(args, env)) {
- candidate = {mixin: mixin, group: defNone};
- if (mixin.matchCondition) {
- for (f = 0; f < 2; f++) {
- defaultFunc.value(f);
- conditionResult[f] = mixin.matchCondition(args, env);
- }
- if (conditionResult[0] || conditionResult[1]) {
- if (conditionResult[0] != conditionResult[1]) {
- candidate.group = conditionResult[1] ?
- defTrue : defFalse;
- }
- candidates.push(candidate);
- }
- }
- else {
- candidates.push(candidate);
- }
- match = true;
- }
- }
- defaultFunc.reset();
- count = [0, 0, 0];
- for (m = 0; m < candidates.length; m++) {
- count[candidates[m].group]++;
- }
- if (count[defNone] > 0) {
- defaultResult = defFalse;
- } else {
- defaultResult = defTrue;
- if ((count[defTrue] + count[defFalse]) > 1) {
- throw { type: 'Runtime',
- message: 'Ambiguous use of `default()` found when matching for `'
- + this.format(args) + '`',
- index: this.index, filename: this.currentFileInfo.filename };
- }
- }
- for (m = 0; m < candidates.length; m++) {
- candidate = candidates[m].group;
- if ((candidate === defNone) || (candidate === defaultResult)) {
- try {
- mixin = candidates[m].mixin;
- if (!(mixin instanceof MixinDefinition)) {
- originalRuleset = mixin.originalRuleset || mixin;
- mixin = new MixinDefinition("", [], mixin.rules, null, false);
- mixin.originalRuleset = originalRuleset;
- }
- Array.prototype.push.apply(
- rules, mixin.evalCall(env, args, this.important).rules);
- } catch (e) {
- throw { message: e.message, index: this.index, filename: this.currentFileInfo.filename, stack: e.stack };
- }
- }
- }
- if (match) {
- if (!this.currentFileInfo || !this.currentFileInfo.reference) {
- for (i = 0; i < rules.length; i++) {
- rule = rules[i];
- if (rule.markReferenced) {
- rule.markReferenced();
- }
- }
- }
- return rules;
- }
- }
- }
- if (isOneFound) {
- throw { type: 'Runtime',
- message: 'No matching definition was found for `' + this.format(args) + '`',
- index: this.index, filename: this.currentFileInfo.filename };
- } else {
- throw { type: 'Name',
- message: this.selector.toCSS().trim() + " is undefined",
- index: this.index, filename: this.currentFileInfo.filename };
- }
- };
- MixinCall.prototype.format = function (args) {
- return this.selector.toCSS().trim() + '(' +
- (args ? args.map(function (a) {
- var argValue = "";
- if (a.name) {
- argValue += a.name + ":";
- }
- if (a.value.toCSS) {
- argValue += a.value.toCSS();
- } else {
- argValue += "???";
- }
- return argValue;
- }).join(', ') : "") + ")";
- };
- module.exports = MixinCall;
- },{"../functions/default.js":10,"./mixin-definition.js":49,"./node.js":51,"./selector.js":58}],49:[function(require,module,exports){
- var Selector = require("./selector.js"),
- Element = require("./element.js"),
- Ruleset = require("./ruleset.js"),
- Rule = require("./rule.js"),
- Expression = require("./expression.js"),
- contexts = require("../contexts.js");
- var Definition = function (name, params, rules, condition, variadic, frames) {
- this.name = name;
- this.selectors = [new(Selector)([new(Element)(null, name, this.index, this.currentFileInfo)])];
- this.params = params;
- this.condition = condition;
- this.variadic = variadic;
- this.arity = params.length;
- this.rules = rules;
- this._lookups = {};
- this.required = params.reduce(function (count, p) {
- if (!p.name || (p.name && !p.value)) { return count + 1; }
- else { return count; }
- }, 0);
- this.frames = frames;
- };
- Definition.prototype = new Ruleset();
- Definition.prototype.type = "MixinDefinition";
- Definition.prototype.evalFirst = true;
- Definition.prototype.accept = function (visitor) {
- if (this.params && this.params.length) {
- this.params = visitor.visitArray(this.params);
- }
- this.rules = visitor.visitArray(this.rules);
- if (this.condition) {
- this.condition = visitor.visit(this.condition);
- }
- };
- Definition.prototype.evalParams = function (env, mixinEnv, args, evaldArguments) {
- /*jshint boss:true */
- var frame = new(Ruleset)(null, null),
- varargs, arg,
- params = this.params.slice(0),
- i, j, val, name, isNamedFound, argIndex, argsLength = 0;
- mixinEnv = new contexts.evalEnv(mixinEnv, [frame].concat(mixinEnv.frames));
- if (args) {
- args = args.slice(0);
- argsLength = args.length;
- for(i = 0; i < argsLength; i++) {
- arg = args[i];
- if (name = (arg && arg.name)) {
- isNamedFound = false;
- for(j = 0; j < params.length; j++) {
- if (!evaldArguments[j] && name === params[j].name) {
- evaldArguments[j] = arg.value.eval(env);
- frame.prependRule(new(Rule)(name, arg.value.eval(env)));
- isNamedFound = true;
- break;
- }
- }
- if (isNamedFound) {
- args.splice(i, 1);
- i--;
- continue;
- } else {
- throw { type: 'Runtime', message: "Named argument for " + this.name +
- ' ' + args[i].name + ' not found' };
- }
- }
- }
- }
- argIndex = 0;
- for (i = 0; i < params.length; i++) {
- if (evaldArguments[i]) { continue; }
- arg = args && args[argIndex];
- if (name = params[i].name) {
- if (params[i].variadic) {
- varargs = [];
- for (j = argIndex; j < argsLength; j++) {
- varargs.push(args[j].value.eval(env));
- }
- frame.prependRule(new(Rule)(name, new(Expression)(varargs).eval(env)));
- } else {
- val = arg && arg.value;
- if (val) {
- val = val.eval(env);
- } else if (params[i].value) {
- val = params[i].value.eval(mixinEnv);
- frame.resetCache();
- } else {
- throw { type: 'Runtime', message: "wrong number of arguments for " + this.name +
- ' (' + argsLength + ' for ' + this.arity + ')' };
- }
- frame.prependRule(new(Rule)(name, val));
- evaldArguments[i] = val;
- }
- }
- if (params[i].variadic && args) {
- for (j = argIndex; j < argsLength; j++) {
- evaldArguments[j] = args[j].value.eval(env);
- }
- }
- argIndex++;
- }
- return frame;
- };
- Definition.prototype.eval = function (env) {
- return new Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || env.frames.slice(0));
- };
- Definition.prototype.evalCall = function (env, args, important) {
- var _arguments = [],
- mixinFrames = this.frames ? this.frames.concat(env.frames) : env.frames,
- frame = this.evalParams(env, new(contexts.evalEnv)(env, mixinFrames), args, _arguments),
- rules, ruleset;
- frame.prependRule(new(Rule)('@arguments', new(Expression)(_arguments).eval(env)));
- rules = this.rules.slice(0);
- ruleset = new(Ruleset)(null, rules);
- ruleset.originalRuleset = this;
- ruleset = ruleset.eval(new(contexts.evalEnv)(env, [this, frame].concat(mixinFrames)));
- if (important) {
- ruleset = this.makeImportant.apply(ruleset);
- }
- return ruleset;
- };
- Definition.prototype.matchCondition = function (args, env) {
- if (this.condition && !this.condition.eval(
- new(contexts.evalEnv)(env,
- [this.evalParams(env, new(contexts.evalEnv)(env, this.frames ? this.frames.concat(env.frames) : env.frames), args, [])] // the parameter variables
- .concat(this.frames) // the parent namespace/mixin frames
- .concat(env.frames)))) { // the current environment frames
- return false;
- }
- return true;
- };
- Definition.prototype.matchArgs = function (args, env) {
- var argsLength = (args && args.length) || 0, len;
- if (! this.variadic) {
- if (argsLength < this.required) { return false; }
- if (argsLength > this.params.length) { return false; }
- } else {
- if (argsLength < (this.required - 1)) { return false; }
- }
- len = Math.min(argsLength, this.arity);
- for (var i = 0; i < len; i++) {
- if (!this.params[i].name && !this.params[i].variadic) {
- if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
- return false;
- }
- }
- }
- return true;
- };
- module.exports = Definition;
- },{"../contexts.js":2,"./element.js":39,"./expression.js":40,"./rule.js":55,"./ruleset.js":57,"./selector.js":58}],50:[function(require,module,exports){
- var Node = require("./node.js"),
- Operation = require("./operation.js"),
- Dimension = require("./dimension.js");
- var Negative = function (node) {
- this.value = node;
- };
- Negative.prototype = new Node();
- Negative.prototype.type = "Negative";
- Negative.prototype.genCSS = function (env, output) {
- output.add('-');
- this.value.genCSS(env, output);
- };
- Negative.prototype.eval = function (env) {
- if (env.isMathOn()) {
- return (new(Operation)('*', [new(Dimension)(-1), this.value])).eval(env);
- }
- return new(Negative)(this.value.eval(env));
- };
- module.exports = Negative;
- },{"./dimension.js":37,"./node.js":51,"./operation.js":52}],51:[function(require,module,exports){
- var Node = function() {
- };
- Node.prototype.toCSS = function (env) {
- var strs = [];
- this.genCSS(env, {
- add: function(chunk, fileInfo, index) {
- strs.push(chunk);
- },
- isEmpty: function () {
- return strs.length === 0;
- }
- });
- return strs.join('');
- };
- Node.prototype.genCSS = function (env, output) {
- output.add(this.value);
- };
- Node.prototype.accept = function (visitor) {
- this.value = visitor.visit(this.value);
- };
- Node.prototype.eval = function () { return this; };
- Node.prototype._operate = function (env, op, a, b) {
- switch (op) {
- case '+': return a + b;
- case '-': return a - b;
- case '*': return a * b;
- case '/': return a / b;
- }
- };
- Node.prototype.fround = function(env, value) {
- var precision = env && env.numPrecision;
- //add "epsilon" to ensure numbers like 1.000000005 (represented as 1.000000004999....) are properly rounded...
- return (precision == null) ? value : Number((value + 2e-16).toFixed(precision));
- };
- module.exports = Node;
- },{}],52:[function(require,module,exports){
- var Node = require("./node.js"),
- Color = require("./color.js"),
- Dimension = require("./dimension.js");
- var Operation = function (op, operands, isSpaced) {
- this.op = op.trim();
- this.operands = operands;
- this.isSpaced = isSpaced;
- };
- Operation.prototype = new Node();
- Operation.prototype.type = "Operation";
- Operation.prototype.accept = function (visitor) {
- this.operands = visitor.visit(this.operands);
- };
- Operation.prototype.eval = function (env) {
- var a = this.operands[0].eval(env),
- b = this.operands[1].eval(env);
- if (env.isMathOn()) {
- if (a instanceof Dimension && b instanceof Color) {
- a = a.toColor();
- }
- if (b instanceof Dimension && a instanceof Color) {
- b = b.toColor();
- }
- if (!a.operate) {
- throw { type: "Operation",
- message: "Operation on an invalid type" };
- }
- return a.operate(env, this.op, b);
- } else {
- return new(Operation)(this.op, [a, b], this.isSpaced);
- }
- };
- Operation.prototype.genCSS = function (env, output) {
- this.operands[0].genCSS(env, output);
- if (this.isSpaced) {
- output.add(" ");
- }
- output.add(this.op);
- if (this.isSpaced) {
- output.add(" ");
- }
- this.operands[1].genCSS(env, output);
- };
- module.exports = Operation;
- },{"./color.js":31,"./dimension.js":37,"./node.js":51}],53:[function(require,module,exports){
- var Node = require("./node.js");
- var Paren = function (node) {
- this.value = node;
- };
- Paren.prototype = new Node();
- Paren.prototype.type = "Paren";
- Paren.prototype.genCSS = function (env, output) {
- output.add('(');
- this.value.genCSS(env, output);
- output.add(')');
- };
- Paren.prototype.eval = function (env) {
- return new(Paren)(this.value.eval(env));
- };
- module.exports = Paren;
- },{"./node.js":51}],54:[function(require,module,exports){
- var JsEvalNode = require("./js-eval-node.js"),
- Variable = require("./variable.js");
- var Quoted = function (str, content, escaped, index, currentFileInfo) {
- this.escaped = escaped;
- this.value = content || '';
- this.quote = str.charAt(0);
- this.index = index;
- this.currentFileInfo = currentFileInfo;
- };
- Quoted.prototype = new JsEvalNode();
- Quoted.prototype.type = "Quoted";
- Quoted.prototype.genCSS = function (env, output) {
- if (!this.escaped) {
- output.add(this.quote, this.currentFileInfo, this.index);
- }
- output.add(this.value);
- if (!this.escaped) {
- output.add(this.quote);
- }
- };
- Quoted.prototype.eval = function (env) {
- var that = this;
- var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
- return String(that.evaluateJavaScript(exp, env));
- }).replace(/@\{([\w-]+)\}/g, function (_, name) {
- var v = new(Variable)('@' + name, that.index, that.currentFileInfo).eval(env, true);
- return (v instanceof Quoted) ? v.value : v.toCSS();
- });
- return new(Quoted)(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo);
- };
- Quoted.prototype.compare = function (x) {
- if (!x.toCSS) {
- return -1;
- }
- var left, right;
- // when comparing quoted strings allow the quote to differ
- if (x.type === "Quoted" && !this.escaped && !x.escaped) {
- left = x.value;
- right = this.value;
- } else {
- left = this.toCSS();
- right = x.toCSS();
- }
- if (left === right) {
- return 0;
- }
- return left < right ? -1 : 1;
- };
- module.exports = Quoted;
- },{"./js-eval-node.js":45,"./variable.js":63}],55:[function(require,module,exports){
- var Node = require("./node.js"),
- Value = require("./value.js"),
- Keyword = require("./keyword.js");
- var Rule = function (name, value, important, merge, index, currentFileInfo, inline, variable) {
- this.name = name;
- this.value = (value instanceof Node) ? value : new(Value)([value]); //value instanceof tree.Value || value instanceof tree.Ruleset ??
- this.important = important ? ' ' + important.trim() : '';
- this.merge = merge;
- this.index = index;
- this.currentFileInfo = currentFileInfo;
- this.inline = inline || false;
- this.variable = (variable !== undefined) ? variable
- : (name.charAt && (name.charAt(0) === '@'));
- };
- function evalName(env, name) {
- var value = "", i, n = name.length,
- output = {add: function (s) {value += s;}};
- for (i = 0; i < n; i++) {
- name[i].eval(env).genCSS(env, output);
- }
- return value;
- }
- Rule.prototype = new Node();
- Rule.prototype.type = "Rule";
- Rule.prototype.genCSS = function (env, output) {
- output.add(this.name + (env.compress ? ':' : ': '), this.currentFileInfo, this.index);
- try {
- this.value.genCSS(env, output);
- }
- catch(e) {
- e.index = this.index;
- e.filename = this.currentFileInfo.filename;
- throw e;
- }
- output.add(this.important + ((this.inline || (env.lastRule && env.compress)) ? "" : ";"), this.currentFileInfo, this.index);
- };
- Rule.prototype.eval = function (env) {
- var strictMathBypass = false, name = this.name, evaldValue, variable = this.variable;
- if (typeof name !== "string") {
- // expand 'primitive' name directly to get
- // things faster (~10% for benchmark.less):
- name = (name.length === 1)
- && (name[0] instanceof Keyword)
- ? name[0].value : evalName(env, name);
- variable = false; // never treat expanded interpolation as new variable name
- }
- if (name === "font" && !env.strictMath) {
- strictMathBypass = true;
- env.strictMath = true;
- }
- try {
- evaldValue = this.value.eval(env);
- if (!this.variable && evaldValue.type === "DetachedRuleset") {
- throw { message: "Rulesets cannot be evaluated on a property.",
- index: this.index, filename: this.currentFileInfo.filename };
- }
- return new(Rule)(name,
- evaldValue,
- this.important,
- this.merge,
- this.index, this.currentFileInfo, this.inline,
- variable);
- }
- catch(e) {
- if (typeof e.index !== 'number') {
- e.index = this.index;
- e.filename = this.currentFileInfo.filename;
- }
- throw e;
- }
- finally {
- if (strictMathBypass) {
- env.strictMath = false;
- }
- }
- };
- Rule.prototype.makeImportant = function () {
- return new(Rule)(this.name,
- this.value,
- "!important",
- this.merge,
- this.index, this.currentFileInfo, this.inline);
- };
- module.exports = Rule;
- },{"./keyword.js":46,"./node.js":51,"./value.js":62}],56:[function(require,module,exports){
- var Node = require("./node.js"),
- Variable = require("./variable.js");
- var RulesetCall = function (variable) {
- this.variable = variable;
- };
- RulesetCall.prototype = new Node();
- RulesetCall.prototype.type = "RulesetCall";
- RulesetCall.prototype.eval = function (env) {
- var detachedRuleset = new(Variable)(this.variable).eval(env);
- return detachedRuleset.callEval(env);
- };
- module.exports = RulesetCall;
- },{"./node.js":51,"./variable.js":63}],57:[function(require,module,exports){
- var Node = require("./node.js"),
- Rule = require("./rule.js"),
- Selector = require("./selector.js"),
- Element = require("./element.js"),
- contexts = require("../contexts.js"),
- defaultFunc = require("../functions/default.js"),
- getDebugInfo = require("./debug-info.js");
- var Ruleset = function (selectors, rules, strictImports) {
- this.selectors = selectors;
- this.rules = rules;
- this._lookups = {};
- this.strictImports = strictImports;
- };
- Ruleset.prototype = new Node();
- Ruleset.prototype.type = "Ruleset";
- Ruleset.prototype.isRuleset = true;
- Ruleset.prototype.isRulesetLike = true;
- Ruleset.prototype.accept = function (visitor) {
- if (this.paths) {
- visitor.visitArray(this.paths, true);
- } else if (this.selectors) {
- this.selectors = visitor.visitArray(this.selectors);
- }
- if (this.rules && this.rules.length) {
- this.rules = visitor.visitArray(this.rules);
- }
- };
- Ruleset.prototype.eval = function (env) {
- var thisSelectors = this.selectors, selectors,
- selCnt, selector, i, hasOnePassingSelector = false;
- if (thisSelectors && (selCnt = thisSelectors.length)) {
- selectors = [];
- defaultFunc.error({
- type: "Syntax",
- message: "it is currently only allowed in parametric mixin guards,"
- });
- for (i = 0; i < selCnt; i++) {
- selector = thisSelectors[i].eval(env);
- selectors.push(selector);
- if (selector.evaldCondition) {
- hasOnePassingSelector = true;
- }
- }
- defaultFunc.reset();
- } else {
- hasOnePassingSelector = true;
- }
- var rules = this.rules ? this.rules.slice(0) : null,
- ruleset = new(Ruleset)(selectors, rules, this.strictImports),
- rule, subRule;
- ruleset.originalRuleset = this;
- ruleset.root = this.root;
- ruleset.firstRoot = this.firstRoot;
- ruleset.allowImports = this.allowImports;
- if(this.debugInfo) {
- ruleset.debugInfo = this.debugInfo;
- }
- if (!hasOnePassingSelector) {
- rules.length = 0;
- }
- // push the current ruleset to the frames stack
- var envFrames = env.frames;
- envFrames.unshift(ruleset);
- // currrent selectors
- var envSelectors = env.selectors;
- if (!envSelectors) {
- env.selectors = envSelectors = [];
- }
- envSelectors.unshift(this.selectors);
- // Evaluate imports
- if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) {
- ruleset.evalImports(env);
- }
- // Store the frames around mixin definitions,
- // so they can be evaluated like closures when the time comes.
- var rsRules = ruleset.rules, rsRuleCnt = rsRules ? rsRules.length : 0;
- for (i = 0; i < rsRuleCnt; i++) {
- if (rsRules[i].evalFirst) {
- rsRules[i] = rsRules[i].eval(env);
- }
- }
- var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0;
- // Evaluate mixin calls.
- for (i = 0; i < rsRuleCnt; i++) {
- if (rsRules[i].type === "MixinCall") {
- /*jshint loopfunc:true */
- rules = rsRules[i].eval(env).filter(function(r) {
- if ((r instanceof Rule) && r.variable) {
- // do not pollute the scope if the variable is
- // already there. consider returning false here
- // but we need a way to "return" variable from mixins
- return !(ruleset.variable(r.name));
- }
- return true;
- });
- rsRules.splice.apply(rsRules, [i, 1].concat(rules));
- rsRuleCnt += rules.length - 1;
- i += rules.length-1;
- ruleset.resetCache();
- } else if (rsRules[i].type === "RulesetCall") {
- /*jshint loopfunc:true */
- rules = rsRules[i].eval(env).rules.filter(function(r) {
- if ((r instanceof Rule) && r.variable) {
- // do not pollute the scope at all
- return false;
- }
- return true;
- });
- rsRules.splice.apply(rsRules, [i, 1].concat(rules));
- rsRuleCnt += rules.length - 1;
- i += rules.length-1;
- ruleset.resetCache();
- }
- }
- // Evaluate everything else
- for (i = 0; i < rsRules.length; i++) {
- rule = rsRules[i];
- if (!rule.evalFirst) {
- rsRules[i] = rule = rule.eval ? rule.eval(env) : rule;
- }
- }
- // Evaluate everything else
- for (i = 0; i < rsRules.length; i++) {
- rule = rsRules[i];
- // for rulesets, check if it is a css guard and can be removed
- if (rule instanceof Ruleset && rule.selectors && rule.selectors.length === 1) {
- // check if it can be folded in (e.g. & where)
- if (rule.selectors[0].isJustParentSelector()) {
- rsRules.splice(i--, 1);
- for(var j = 0; j < rule.rules.length; j++) {
- subRule = rule.rules[j];
- if (!(subRule instanceof Rule) || !subRule.variable) {
- rsRules.splice(++i, 0, subRule);
- }
- }
- }
- }
- }
- // Pop the stack
- envFrames.shift();
- envSelectors.shift();
- if (env.mediaBlocks) {
- for (i = mediaBlockCount; i < env.mediaBlocks.length; i++) {
- env.mediaBlocks[i].bubbleSelectors(selectors);
- }
- }
- return ruleset;
- };
- Ruleset.prototype.evalImports = function(env) {
- var rules = this.rules, i, importRules;
- if (!rules) { return; }
- for (i = 0; i < rules.length; i++) {
- if (rules[i].type === "Import") {
- importRules = rules[i].eval(env);
- if (importRules && importRules.length) {
- rules.splice.apply(rules, [i, 1].concat(importRules));
- i+= importRules.length-1;
- } else {
- rules.splice(i, 1, importRules);
- }
- this.resetCache();
- }
- }
- };
- Ruleset.prototype.makeImportant = function() {
- return new Ruleset(this.selectors, this.rules.map(function (r) {
- if (r.makeImportant) {
- return r.makeImportant();
- } else {
- return r;
- }
- }), this.strictImports);
- };
- Ruleset.prototype.matchArgs = function (args) {
- return !args || args.length === 0;
- };
- // lets you call a css selector with a guard
- Ruleset.prototype.matchCondition = function (args, env) {
- var lastSelector = this.selectors[this.selectors.length-1];
- if (!lastSelector.evaldCondition) {
- return false;
- }
- if (lastSelector.condition &&
- !lastSelector.condition.eval(
- new(contexts.evalEnv)(env,
- env.frames))) {
- return false;
- }
- return true;
- };
- Ruleset.prototype.resetCache = function () {
- this._rulesets = null;
- this._variables = null;
- this._lookups = {};
- };
- Ruleset.prototype.variables = function () {
- if (!this._variables) {
- this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) {
- if (r instanceof Rule && r.variable === true) {
- hash[r.name] = r;
- }
- return hash;
- }, {});
- }
- return this._variables;
- };
- Ruleset.prototype.variable = function (name) {
- return this.variables()[name];
- };
- Ruleset.prototype.rulesets = function () {
- if (!this.rules) { return null; }
- var filtRules = [], rules = this.rules, cnt = rules.length,
- i, rule;
- for (i = 0; i < cnt; i++) {
- rule = rules[i];
- if (rule.isRuleset) {
- filtRules.push(rule);
- }
- }
- return filtRules;
- };
- Ruleset.prototype.prependRule = function (rule) {
- var rules = this.rules;
- if (rules) { rules.unshift(rule); } else { this.rules = [ rule ]; }
- };
- Ruleset.prototype.find = function (selector, self) {
- self = self || this;
- var rules = [], match,
- key = selector.toCSS();
- if (key in this._lookups) { return this._lookups[key]; }
- this.rulesets().forEach(function (rule) {
- if (rule !== self) {
- for (var j = 0; j < rule.selectors.length; j++) {
- match = selector.match(rule.selectors[j]);
- if (match) {
- if (selector.elements.length > match) {
- Array.prototype.push.apply(rules, rule.find(
- new(Selector)(selector.elements.slice(match)), self));
- } else {
- rules.push(rule);
- }
- break;
- }
- }
- }
- });
- this._lookups[key] = rules;
- return rules;
- };
- Ruleset.prototype.genCSS = function (env, output) {
- var i, j,
- charsetRuleNodes = [],
- ruleNodes = [],
- rulesetNodes = [],
- rulesetNodeCnt,
- debugInfo, // Line number debugging
- rule,
- path;
- env.tabLevel = (env.tabLevel || 0);
- if (!this.root) {
- env.tabLevel++;
- }
- var tabRuleStr = env.compress ? '' : Array(env.tabLevel + 1).join(" "),
- tabSetStr = env.compress ? '' : Array(env.tabLevel).join(" "),
- sep;
- function isRulesetLikeNode(rule, root) {
- // if it has nested rules, then it should be treated like a ruleset
- // medias and comments do not have nested rules, but should be treated like rulesets anyway
- // some directives and anonymous nodes are ruleset like, others are not
- if (typeof rule.isRulesetLike === "boolean")
- {
- return rule.isRulesetLike;
- } else if (typeof rule.isRulesetLike === "function")
- {
- return rule.isRulesetLike(root);
- }
- //anything else is assumed to be a rule
- return false;
- }
- for (i = 0; i < this.rules.length; i++) {
- rule = this.rules[i];
- if (isRulesetLikeNode(rule, this.root)) {
- rulesetNodes.push(rule);
- } else {
- //charsets should float on top of everything
- if (rule.isCharset && rule.isCharset()) {
- charsetRuleNodes.push(rule);
- } else {
- ruleNodes.push(rule);
- }
- }
- }
- ruleNodes = charsetRuleNodes.concat(ruleNodes);
- // If this is the root node, we don't render
- // a selector, or {}.
- if (!this.root) {
- debugInfo = getDebugInfo(env, this, tabSetStr);
- if (debugInfo) {
- output.add(debugInfo);
- output.add(tabSetStr);
- }
- var paths = this.paths, pathCnt = paths.length,
- pathSubCnt;
- sep = env.compress ? ',' : (',\n' + tabSetStr);
- for (i = 0; i < pathCnt; i++) {
- path = paths[i];
- if (!(pathSubCnt = path.length)) { continue; }
- if (i > 0) { output.add(sep); }
- env.firstSelector = true;
- path[0].genCSS(env, output);
- env.firstSelector = false;
- for (j = 1; j < pathSubCnt; j++) {
- path[j].genCSS(env, output);
- }
- }
- output.add((env.compress ? '{' : ' {\n') + tabRuleStr);
- }
- // Compile rules and rulesets
- for (i = 0; i < ruleNodes.length; i++) {
- rule = ruleNodes[i];
- // @page{ directive ends up with root elements inside it, a mix of rules and rulesets
- // In this instance we do not know whether it is the last property
- if (i + 1 === ruleNodes.length && (!this.root || rulesetNodes.length === 0 || this.firstRoot)) {
- env.lastRule = true;
- }
- if (rule.genCSS) {
- rule.genCSS(env, output);
- } else if (rule.value) {
- output.add(rule.value.toString());
- }
- if (!env.lastRule) {
- output.add(env.compress ? '' : ('\n' + tabRuleStr));
- } else {
- env.lastRule = false;
- }
- }
- if (!this.root) {
- output.add((env.compress ? '}' : '\n' + tabSetStr + '}'));
- env.tabLevel--;
- }
- sep = (env.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr);
- rulesetNodeCnt = rulesetNodes.length;
- if (rulesetNodeCnt) {
- if (ruleNodes.length && sep) { output.add(sep); }
- rulesetNodes[0].genCSS(env, output);
- for (i = 1; i < rulesetNodeCnt; i++) {
- if (sep) { output.add(sep); }
- rulesetNodes[i].genCSS(env, output);
- }
- }
- if (!output.isEmpty() && !env.compress && this.firstRoot) {
- output.add('\n');
- }
- };
- Ruleset.prototype.markReferenced = function () {
- if (!this.selectors) {
- return;
- }
- for (var s = 0; s < this.selectors.length; s++) {
- this.selectors[s].markReferenced();
- }
- };
- Ruleset.prototype.joinSelectors = function (paths, context, selectors) {
- for (var s = 0; s < selectors.length; s++) {
- this.joinSelector(paths, context, selectors[s]);
- }
- };
- Ruleset.prototype.joinSelector = function (paths, context, selector) {
- var i, j, k,
- hasParentSelector, newSelectors, el, sel, parentSel,
- newSelectorPath, afterParentJoin, newJoinedSelector,
- newJoinedSelectorEmpty, lastSelector, currentElements,
- selectorsMultiplied;
- for (i = 0; i < selector.elements.length; i++) {
- el = selector.elements[i];
- if (el.value === '&') {
- hasParentSelector = true;
- }
- }
- if (!hasParentSelector) {
- if (context.length > 0) {
- for (i = 0; i < context.length; i++) {
- paths.push(context[i].concat(selector));
- }
- }
- else {
- paths.push([selector]);
- }
- return;
- }
- // The paths are [[Selector]]
- // The first list is a list of comma seperated selectors
- // The inner list is a list of inheritance seperated selectors
- // e.g.
- // .a, .b {
- // .c {
- // }
- // }
- // == [[.a] [.c]] [[.b] [.c]]
- //
- // the elements from the current selector so far
- currentElements = [];
- // the current list of new selectors to add to the path.
- // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors
- // by the parents
- newSelectors = [[]];
- for (i = 0; i < selector.elements.length; i++) {
- el = selector.elements[i];
- // non parent reference elements just get added
- if (el.value !== "&") {
- currentElements.push(el);
- } else {
- // the new list of selectors to add
- selectorsMultiplied = [];
- // merge the current list of non parent selector elements
- // on to the current list of selectors to add
- if (currentElements.length > 0) {
- this.mergeElementsOnToSelectors(currentElements, newSelectors);
- }
- // loop through our current selectors
- for (j = 0; j < newSelectors.length; j++) {
- sel = newSelectors[j];
- // if we don't have any parent paths, the & might be in a mixin so that it can be used
- // whether there are parents or not
- if (context.length === 0) {
- // the combinator used on el should now be applied to the next element instead so that
- // it is not lost
- if (sel.length > 0) {
- sel[0].elements = sel[0].elements.slice(0);
- sel[0].elements.push(new(Element)(el.combinator, '', el.index, el.currentFileInfo));
- }
- selectorsMultiplied.push(sel);
- }
- else {
- // and the parent selectors
- for (k = 0; k < context.length; k++) {
- parentSel = context[k];
- // We need to put the current selectors
- // then join the last selector's elements on to the parents selectors
- // our new selector path
- newSelectorPath = [];
- // selectors from the parent after the join
- afterParentJoin = [];
- newJoinedSelectorEmpty = true;
- //construct the joined selector - if & is the first thing this will be empty,
- // if not newJoinedSelector will be the last set of elements in the selector
- if (sel.length > 0) {
- newSelectorPath = sel.slice(0);
- lastSelector = newSelectorPath.pop();
- newJoinedSelector = selector.createDerived(lastSelector.elements.slice(0));
- newJoinedSelectorEmpty = false;
- }
- else {
- newJoinedSelector = selector.createDerived([]);
- }
- //put together the parent selectors after the join
- if (parentSel.length > 1) {
- afterParentJoin = afterParentJoin.concat(parentSel.slice(1));
- }
- if (parentSel.length > 0) {
- newJoinedSelectorEmpty = false;
- // join the elements so far with the first part of the parent
- newJoinedSelector.elements.push(new(Element)(el.combinator, parentSel[0].elements[0].value, el.index, el.currentFileInfo));
- newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1));
- }
- if (!newJoinedSelectorEmpty) {
- // now add the joined selector
- newSelectorPath.push(newJoinedSelector);
- }
- // and the rest of the parent
- newSelectorPath = newSelectorPath.concat(afterParentJoin);
- // add that to our new set of selectors
- selectorsMultiplied.push(newSelectorPath);
- }
- }
- }
- // our new selectors has been multiplied, so reset the state
- newSelectors = selectorsMultiplied;
- currentElements = [];
- }
- }
- // if we have any elements left over (e.g. .a& .b == .b)
- // add them on to all the current selectors
- if (currentElements.length > 0) {
- this.mergeElementsOnToSelectors(currentElements, newSelectors);
- }
- for (i = 0; i < newSelectors.length; i++) {
- if (newSelectors[i].length > 0) {
- paths.push(newSelectors[i]);
- }
- }
- };
- Ruleset.prototype.mergeElementsOnToSelectors = function(elements, selectors) {
- var i, sel;
- if (selectors.length === 0) {
- selectors.push([ new(Selector)(elements) ]);
- return;
- }
- for (i = 0; i < selectors.length; i++) {
- sel = selectors[i];
- // if the previous thing in sel is a parent this needs to join on to it
- if (sel.length > 0) {
- sel[sel.length - 1] = sel[sel.length - 1].createDerived(sel[sel.length - 1].elements.concat(elements));
- }
- else {
- sel.push(new(Selector)(elements));
- }
- }
- };
- module.exports = Ruleset;
- },{"../contexts.js":2,"../functions/default.js":10,"./debug-info.js":35,"./element.js":39,"./node.js":51,"./rule.js":55,"./selector.js":58}],58:[function(require,module,exports){
- var Node = require("./node.js");
- var Selector = function (elements, extendList, condition, index, currentFileInfo, isReferenced) {
- this.elements = elements;
- this.extendList = extendList;
- this.condition = condition;
- this.currentFileInfo = currentFileInfo || {};
- this.isReferenced = isReferenced;
- if (!condition) {
- this.evaldCondition = true;
- }
- };
- Selector.prototype = new Node();
- Selector.prototype.type = "Selector";
- Selector.prototype.accept = function (visitor) {
- if (this.elements) {
- this.elements = visitor.visitArray(this.elements);
- }
- if (this.extendList) {
- this.extendList = visitor.visitArray(this.extendList);
- }
- if (this.condition) {
- this.condition = visitor.visit(this.condition);
- }
- };
- Selector.prototype.createDerived = function(elements, extendList, evaldCondition) {
- evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition;
- var newSelector = new(Selector)(elements, extendList || this.extendList, null, this.index, this.currentFileInfo, this.isReferenced);
- newSelector.evaldCondition = evaldCondition;
- newSelector.mediaEmpty = this.mediaEmpty;
- return newSelector;
- };
- Selector.prototype.match = function (other) {
- var elements = this.elements,
- len = elements.length,
- olen, i;
- other.CacheElements();
- olen = other._elements.length;
- if (olen === 0 || len < olen) {
- return 0;
- } else {
- for (i = 0; i < olen; i++) {
- if (elements[i].value !== other._elements[i]) {
- return 0;
- }
- }
- }
- return olen; // return number of matched elements
- };
- Selector.prototype.CacheElements = function(){
- var css = '', len, v, i;
- if( !this._elements ){
- len = this.elements.length;
- for(i = 0; i < len; i++){
- v = this.elements[i];
- css += v.combinator.value;
- if( !v.value.value ){
- css += v.value;
- continue;
- }
- if( typeof v.value.value !== "string" ){
- css = '';
- break;
- }
- css += v.value.value;
- }
- this._elements = css.match(/[,&#\*\.\w-]([\w-]|(\\.))*/g);
- if (this._elements) {
- if (this._elements[0] === "&") {
- this._elements.shift();
- }
- } else {
- this._elements = [];
- }
- }
- };
- Selector.prototype.isJustParentSelector = function() {
- return !this.mediaEmpty &&
- this.elements.length === 1 &&
- this.elements[0].value === '&' &&
- (this.elements[0].combinator.value === ' ' || this.elements[0].combinator.value === '');
- };
- Selector.prototype.eval = function (env) {
- var evaldCondition = this.condition && this.condition.eval(env),
- elements = this.elements, extendList = this.extendList;
- elements = elements && elements.map(function (e) { return e.eval(env); });
- extendList = extendList && extendList.map(function(extend) { return extend.eval(env); });
- return this.createDerived(elements, extendList, evaldCondition);
- };
- Selector.prototype.genCSS = function (env, output) {
- var i, element;
- if ((!env || !env.firstSelector) && this.elements[0].combinator.value === "") {
- output.add(' ', this.currentFileInfo, this.index);
- }
- if (!this._css) {
- //TODO caching? speed comparison?
- for(i = 0; i < this.elements.length; i++) {
- element = this.elements[i];
- element.genCSS(env, output);
- }
- }
- };
- Selector.prototype.markReferenced = function () {
- this.isReferenced = true;
- };
- Selector.prototype.getIsReferenced = function() {
- return !this.currentFileInfo.reference || this.isReferenced;
- };
- Selector.prototype.getIsOutput = function() {
- return this.evaldCondition;
- };
- module.exports = Selector;
- },{"./node.js":51}],59:[function(require,module,exports){
- var Node = require("./node.js");
- var UnicodeDescriptor = function (value) {
- this.value = value;
- };
- UnicodeDescriptor.prototype = new Node();
- UnicodeDescriptor.prototype.type = "UnicodeDescriptor";
- module.exports = UnicodeDescriptor;
- },{"./node.js":51}],60:[function(require,module,exports){
- var Node = require("./node.js"),
- unitConversions = require("../data/unit-conversions.js");
- var Unit = function (numerator, denominator, backupUnit) {
- this.numerator = numerator ? numerator.slice(0).sort() : [];
- this.denominator = denominator ? denominator.slice(0).sort() : [];
- this.backupUnit = backupUnit;
- };
- Unit.prototype = new Node();
- Unit.prototype.type = "Unit";
- Unit.prototype.clone = function () {
- return new Unit(this.numerator.slice(0), this.denominator.slice(0), this.backupUnit);
- };
- Unit.prototype.genCSS = function (env, output) {
- if (this.numerator.length >= 1) {
- output.add(this.numerator[0]);
- } else
- if (this.denominator.length >= 1) {
- output.add(this.denominator[0]);
- } else
- if ((!env || !env.strictUnits) && this.backupUnit) {
- output.add(this.backupUnit);
- }
- };
- Unit.prototype.toString = function () {
- var i, returnStr = this.numerator.join("*");
- for (i = 0; i < this.denominator.length; i++) {
- returnStr += "/" + this.denominator[i];
- }
- return returnStr;
- };
- Unit.prototype.compare = function (other) {
- return this.is(other.toString()) ? 0 : -1;
- };
- Unit.prototype.is = function (unitString) {
- return this.toString() === unitString;
- };
- Unit.prototype.isLength = function () {
- return Boolean(this.toCSS().match(/px|em|%|in|cm|mm|pc|pt|ex/));
- };
- Unit.prototype.isEmpty = function () {
- return this.numerator.length === 0 && this.denominator.length === 0;
- };
- Unit.prototype.isSingular = function() {
- return this.numerator.length <= 1 && this.denominator.length === 0;
- };
- Unit.prototype.map = function(callback) {
- var i;
- for (i = 0; i < this.numerator.length; i++) {
- this.numerator[i] = callback(this.numerator[i], false);
- }
- for (i = 0; i < this.denominator.length; i++) {
- this.denominator[i] = callback(this.denominator[i], true);
- }
- };
- Unit.prototype.usedUnits = function() {
- var group, result = {}, mapUnit;
- mapUnit = function (atomicUnit) {
- /*jshint loopfunc:true */
- if (group.hasOwnProperty(atomicUnit) && !result[groupName]) {
- result[groupName] = atomicUnit;
- }
- return atomicUnit;
- };
- for (var groupName in unitConversions) {
- if (unitConversions.hasOwnProperty(groupName)) {
- group = unitConversions[groupName];
- this.map(mapUnit);
- }
- }
- return result;
- };
- Unit.prototype.cancel = function () {
- var counter = {}, atomicUnit, i, backup;
- for (i = 0; i < this.numerator.length; i++) {
- atomicUnit = this.numerator[i];
- if (!backup) {
- backup = atomicUnit;
- }
- counter[atomicUnit] = (counter[atomicUnit] || 0) + 1;
- }
- for (i = 0; i < this.denominator.length; i++) {
- atomicUnit = this.denominator[i];
- if (!backup) {
- backup = atomicUnit;
- }
- counter[atomicUnit] = (counter[atomicUnit] || 0) - 1;
- }
- this.numerator = [];
- this.denominator = [];
- for (atomicUnit in counter) {
- if (counter.hasOwnProperty(atomicUnit)) {
- var count = counter[atomicUnit];
- if (count > 0) {
- for (i = 0; i < count; i++) {
- this.numerator.push(atomicUnit);
- }
- } else if (count < 0) {
- for (i = 0; i < -count; i++) {
- this.denominator.push(atomicUnit);
- }
- }
- }
- }
- if (this.numerator.length === 0 && this.denominator.length === 0 && backup) {
- this.backupUnit = backup;
- }
- this.numerator.sort();
- this.denominator.sort();
- };
- module.exports = Unit;
- },{"../data/unit-conversions.js":5,"./node.js":51}],61:[function(require,module,exports){
- var Node = require("./node.js");
- var URL = function (val, currentFileInfo, isEvald) {
- this.value = val;
- this.currentFileInfo = currentFileInfo;
- this.isEvald = isEvald;
- };
- URL.prototype = new Node();
- URL.prototype.type = "Url";
- URL.prototype.accept = function (visitor) {
- this.value = visitor.visit(this.value);
- };
- URL.prototype.genCSS = function (env, output) {
- output.add("url(");
- this.value.genCSS(env, output);
- output.add(")");
- };
- URL.prototype.eval = function (ctx) {
- var val = this.value.eval(ctx),
- rootpath;
- if (!this.isEvald) {
- // Add the base path if the URL is relative
- rootpath = this.currentFileInfo && this.currentFileInfo.rootpath;
- if (rootpath && typeof val.value === "string" && ctx.isPathRelative(val.value)) {
- if (!val.quote) {
- rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; });
- }
- val.value = rootpath + val.value;
- }
- val.value = ctx.normalizePath(val.value);
- // Add url args if enabled
- if (ctx.urlArgs) {
- if (!val.value.match(/^\s*data:/)) {
- var delimiter = val.value.indexOf('?') === -1 ? '?' : '&';
- var urlArgs = delimiter + ctx.urlArgs;
- if (val.value.indexOf('#') !== -1) {
- val.value = val.value.replace('#', urlArgs + '#');
- } else {
- val.value += urlArgs;
- }
- }
- }
- }
- return new(URL)(val, this.currentFileInfo, true);
- };
- module.exports = URL;
- },{"./node.js":51}],62:[function(require,module,exports){
- var Node = require("./node.js");
- var Value = function (value) {
- this.value = value;
- };
- Value.prototype = new Node();
- Value.prototype.type = "Value";
- Value.prototype.accept = function (visitor) {
- if (this.value) {
- this.value = visitor.visitArray(this.value);
- }
- };
- Value.prototype.eval = function (env) {
- if (this.value.length === 1) {
- return this.value[0].eval(env);
- } else {
- return new(Value)(this.value.map(function (v) {
- return v.eval(env);
- }));
- }
- };
- Value.prototype.genCSS = function (env, output) {
- var i;
- for(i = 0; i < this.value.length; i++) {
- this.value[i].genCSS(env, output);
- if (i+1 < this.value.length) {
- output.add((env && env.compress) ? ',' : ', ');
- }
- }
- };
- module.exports = Value;
- },{"./node.js":51}],63:[function(require,module,exports){
- var Node = require("./node.js");
- var Variable = function (name, index, currentFileInfo) {
- this.name = name;
- this.index = index;
- this.currentFileInfo = currentFileInfo || {};
- };
- Variable.prototype = new Node();
- Variable.prototype.type = "Variable";
- Variable.prototype.eval = function (env) {
- var variable, name = this.name;
- if (name.indexOf('@@') === 0) {
- name = '@' + new(Variable)(name.slice(1)).eval(env).value;
- }
- if (this.evaluating) {
- throw { type: 'Name',
- message: "Recursive variable definition for " + name,
- filename: this.currentFileInfo.file,
- index: this.index };
- }
- this.evaluating = true;
- variable = this.find(env.frames, function (frame) {
- var v = frame.variable(name);
- if (v) {
- return v.value.eval(env);
- }
- });
- if (variable) {
- this.evaluating = false;
- return variable;
- } else {
- throw { type: 'Name',
- message: "variable " + name + " is undefined",
- filename: this.currentFileInfo.filename,
- index: this.index };
- }
- };
- Variable.prototype.find = function (obj, fun) {
- for (var i = 0, r; i < obj.length; i++) {
- r = fun.call(obj, obj[i]);
- if (r) { return r; }
- }
- return null;
- };
- module.exports = Variable;
- },{"./node.js":51}],64:[function(require,module,exports){
- var tree = require("../tree/index.js"),
- Visitor = require("./visitor.js");
- /*jshint loopfunc:true */
- var ExtendFinderVisitor = function() {
- this._visitor = new Visitor(this);
- this.contexts = [];
- this.allExtendsStack = [[]];
- };
- ExtendFinderVisitor.prototype = {
- run: function (root) {
- root = this._visitor.visit(root);
- root.allExtends = this.allExtendsStack[0];
- return root;
- },
- visitRule: function (ruleNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitRuleset: function (rulesetNode, visitArgs) {
- if (rulesetNode.root) {
- return;
- }
- var i, j, extend, allSelectorsExtendList = [], extendList;
- // get &:extend(.a); rules which apply to all selectors in this ruleset
- var rules = rulesetNode.rules, ruleCnt = rules ? rules.length : 0;
- for(i = 0; i < ruleCnt; i++) {
- if (rulesetNode.rules[i] instanceof tree.Extend) {
- allSelectorsExtendList.push(rules[i]);
- rulesetNode.extendOnEveryPath = true;
- }
- }
- // now find every selector and apply the extends that apply to all extends
- // and the ones which apply to an individual extend
- var paths = rulesetNode.paths;
- for(i = 0; i < paths.length; i++) {
- var selectorPath = paths[i],
- selector = selectorPath[selectorPath.length - 1],
- selExtendList = selector.extendList;
- extendList = selExtendList ? selExtendList.slice(0).concat(allSelectorsExtendList)
- : allSelectorsExtendList;
- if (extendList) {
- extendList = extendList.map(function(allSelectorsExtend) {
- return allSelectorsExtend.clone();
- });
- }
- for(j = 0; j < extendList.length; j++) {
- this.foundExtends = true;
- extend = extendList[j];
- extend.findSelfSelectors(selectorPath);
- extend.ruleset = rulesetNode;
- if (j === 0) { extend.firstExtendOnThisSelectorPath = true; }
- this.allExtendsStack[this.allExtendsStack.length-1].push(extend);
- }
- }
- this.contexts.push(rulesetNode.selectors);
- },
- visitRulesetOut: function (rulesetNode) {
- if (!rulesetNode.root) {
- this.contexts.length = this.contexts.length - 1;
- }
- },
- visitMedia: function (mediaNode, visitArgs) {
- mediaNode.allExtends = [];
- this.allExtendsStack.push(mediaNode.allExtends);
- },
- visitMediaOut: function (mediaNode) {
- this.allExtendsStack.length = this.allExtendsStack.length - 1;
- },
- visitDirective: function (directiveNode, visitArgs) {
- directiveNode.allExtends = [];
- this.allExtendsStack.push(directiveNode.allExtends);
- },
- visitDirectiveOut: function (directiveNode) {
- this.allExtendsStack.length = this.allExtendsStack.length - 1;
- }
- };
- var ProcessExtendsVisitor = function() {
- this._visitor = new Visitor(this);
- };
- ProcessExtendsVisitor.prototype = {
- run: function(root) {
- var extendFinder = new ExtendFinderVisitor();
- extendFinder.run(root);
- if (!extendFinder.foundExtends) { return root; }
- root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends));
- this.allExtendsStack = [root.allExtends];
- return this._visitor.visit(root);
- },
- doExtendChaining: function (extendsList, extendsListTarget, iterationCount) {
- //
- // chaining is different from normal extension.. if we extend an extend then we are not just copying, altering and pasting
- // the selector we would do normally, but we are also adding an extend with the same target selector
- // this means this new extend can then go and alter other extends
- //
- // this method deals with all the chaining work - without it, extend is flat and doesn't work on other extend selectors
- // this is also the most expensive.. and a match on one selector can cause an extension of a selector we had already processed if
- // we look at each selector at a time, as is done in visitRuleset
- var extendIndex, targetExtendIndex, matches, extendsToAdd = [], newSelector, extendVisitor = this, selectorPath, extend, targetExtend, newExtend;
- iterationCount = iterationCount || 0;
- //loop through comparing every extend with every target extend.
- // a target extend is the one on the ruleset we are looking at copy/edit/pasting in place
- // e.g. .a:extend(.b) {} and .b:extend(.c) {} then the first extend extends the second one
- // and the second is the target.
- // the seperation into two lists allows us to process a subset of chains with a bigger set, as is the
- // case when processing media queries
- for(extendIndex = 0; extendIndex < extendsList.length; extendIndex++){
- for(targetExtendIndex = 0; targetExtendIndex < extendsListTarget.length; targetExtendIndex++){
- extend = extendsList[extendIndex];
- targetExtend = extendsListTarget[targetExtendIndex];
- // look for circular references
- if( extend.parent_ids.indexOf( targetExtend.object_id ) >= 0 ){ continue; }
- // find a match in the target extends self selector (the bit before :extend)
- selectorPath = [targetExtend.selfSelectors[0]];
- matches = extendVisitor.findMatch(extend, selectorPath);
- if (matches.length) {
- // we found a match, so for each self selector..
- extend.selfSelectors.forEach(function(selfSelector) {
- // process the extend as usual
- newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector);
- // but now we create a new extend from it
- newExtend = new(tree.Extend)(targetExtend.selector, targetExtend.option, 0);
- newExtend.selfSelectors = newSelector;
- // add the extend onto the list of extends for that selector
- newSelector[newSelector.length-1].extendList = [newExtend];
- // record that we need to add it.
- extendsToAdd.push(newExtend);
- newExtend.ruleset = targetExtend.ruleset;
- //remember its parents for circular references
- newExtend.parent_ids = newExtend.parent_ids.concat(targetExtend.parent_ids, extend.parent_ids);
- // only process the selector once.. if we have :extend(.a,.b) then multiple
- // extends will look at the same selector path, so when extending
- // we know that any others will be duplicates in terms of what is added to the css
- if (targetExtend.firstExtendOnThisSelectorPath) {
- newExtend.firstExtendOnThisSelectorPath = true;
- targetExtend.ruleset.paths.push(newSelector);
- }
- });
- }
- }
- }
- if (extendsToAdd.length) {
- // try to detect circular references to stop a stack overflow.
- // may no longer be needed.
- this.extendChainCount++;
- if (iterationCount > 100) {
- var selectorOne = "{unable to calculate}";
- var selectorTwo = "{unable to calculate}";
- try
- {
- selectorOne = extendsToAdd[0].selfSelectors[0].toCSS();
- selectorTwo = extendsToAdd[0].selector.toCSS();
- }
- catch(e) {}
- throw {message: "extend circular reference detected. One of the circular extends is currently:"+selectorOne+":extend(" + selectorTwo+")"};
- }
- // now process the new extends on the existing rules so that we can handle a extending b extending c ectending d extending e...
- return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount+1));
- } else {
- return extendsToAdd;
- }
- },
- visitRule: function (ruleNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitSelector: function (selectorNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitRuleset: function (rulesetNode, visitArgs) {
- if (rulesetNode.root) {
- return;
- }
- var matches, pathIndex, extendIndex, allExtends = this.allExtendsStack[this.allExtendsStack.length-1], selectorsToAdd = [], extendVisitor = this, selectorPath;
- // look at each selector path in the ruleset, find any extend matches and then copy, find and replace
- for(extendIndex = 0; extendIndex < allExtends.length; extendIndex++) {
- for(pathIndex = 0; pathIndex < rulesetNode.paths.length; pathIndex++) {
- selectorPath = rulesetNode.paths[pathIndex];
- // extending extends happens initially, before the main pass
- if (rulesetNode.extendOnEveryPath) { continue; }
- var extendList = selectorPath[selectorPath.length-1].extendList;
- if (extendList && extendList.length) { continue; }
- matches = this.findMatch(allExtends[extendIndex], selectorPath);
- if (matches.length) {
- allExtends[extendIndex].selfSelectors.forEach(function(selfSelector) {
- selectorsToAdd.push(extendVisitor.extendSelector(matches, selectorPath, selfSelector));
- });
- }
- }
- }
- rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd);
- },
- findMatch: function (extend, haystackSelectorPath) {
- //
- // look through the haystack selector path to try and find the needle - extend.selector
- // returns an array of selector matches that can then be replaced
- //
- var haystackSelectorIndex, hackstackSelector, hackstackElementIndex, haystackElement,
- targetCombinator, i,
- extendVisitor = this,
- needleElements = extend.selector.elements,
- potentialMatches = [], potentialMatch, matches = [];
- // loop through the haystack elements
- for(haystackSelectorIndex = 0; haystackSelectorIndex < haystackSelectorPath.length; haystackSelectorIndex++) {
- hackstackSelector = haystackSelectorPath[haystackSelectorIndex];
- for(hackstackElementIndex = 0; hackstackElementIndex < hackstackSelector.elements.length; hackstackElementIndex++) {
- haystackElement = hackstackSelector.elements[hackstackElementIndex];
- // if we allow elements before our match we can add a potential match every time. otherwise only at the first element.
- if (extend.allowBefore || (haystackSelectorIndex === 0 && hackstackElementIndex === 0)) {
- potentialMatches.push({pathIndex: haystackSelectorIndex, index: hackstackElementIndex, matched: 0, initialCombinator: haystackElement.combinator});
- }
- for(i = 0; i < potentialMatches.length; i++) {
- potentialMatch = potentialMatches[i];
- // selectors add " " onto the first element. When we use & it joins the selectors together, but if we don't
- // then each selector in haystackSelectorPath has a space before it added in the toCSS phase. so we need to work out
- // what the resulting combinator will be
- targetCombinator = haystackElement.combinator.value;
- if (targetCombinator === '' && hackstackElementIndex === 0) {
- targetCombinator = ' ';
- }
- // if we don't match, null our match to indicate failure
- if (!extendVisitor.isElementValuesEqual(needleElements[potentialMatch.matched].value, haystackElement.value) ||
- (potentialMatch.matched > 0 && needleElements[potentialMatch.matched].combinator.value !== targetCombinator)) {
- potentialMatch = null;
- } else {
- potentialMatch.matched++;
- }
- // if we are still valid and have finished, test whether we have elements after and whether these are allowed
- if (potentialMatch) {
- potentialMatch.finished = potentialMatch.matched === needleElements.length;
- if (potentialMatch.finished &&
- (!extend.allowAfter && (hackstackElementIndex+1 < hackstackSelector.elements.length || haystackSelectorIndex+1 < haystackSelectorPath.length))) {
- potentialMatch = null;
- }
- }
- // if null we remove, if not, we are still valid, so either push as a valid match or continue
- if (potentialMatch) {
- if (potentialMatch.finished) {
- potentialMatch.length = needleElements.length;
- potentialMatch.endPathIndex = haystackSelectorIndex;
- potentialMatch.endPathElementIndex = hackstackElementIndex + 1; // index after end of match
- potentialMatches.length = 0; // we don't allow matches to overlap, so start matching again
- matches.push(potentialMatch);
- }
- } else {
- potentialMatches.splice(i, 1);
- i--;
- }
- }
- }
- }
- return matches;
- },
- isElementValuesEqual: function(elementValue1, elementValue2) {
- if (typeof elementValue1 === "string" || typeof elementValue2 === "string") {
- return elementValue1 === elementValue2;
- }
- if (elementValue1 instanceof tree.Attribute) {
- if (elementValue1.op !== elementValue2.op || elementValue1.key !== elementValue2.key) {
- return false;
- }
- if (!elementValue1.value || !elementValue2.value) {
- if (elementValue1.value || elementValue2.value) {
- return false;
- }
- return true;
- }
- elementValue1 = elementValue1.value.value || elementValue1.value;
- elementValue2 = elementValue2.value.value || elementValue2.value;
- return elementValue1 === elementValue2;
- }
- elementValue1 = elementValue1.value;
- elementValue2 = elementValue2.value;
- if (elementValue1 instanceof tree.Selector) {
- if (!(elementValue2 instanceof tree.Selector) || elementValue1.elements.length !== elementValue2.elements.length) {
- return false;
- }
- for(var i = 0; i <elementValue1.elements.length; i++) {
- if (elementValue1.elements[i].combinator.value !== elementValue2.elements[i].combinator.value) {
- if (i !== 0 || (elementValue1.elements[i].combinator.value || ' ') !== (elementValue2.elements[i].combinator.value || ' ')) {
- return false;
- }
- }
- if (!this.isElementValuesEqual(elementValue1.elements[i].value, elementValue2.elements[i].value)) {
- return false;
- }
- }
- return true;
- }
- return false;
- },
- extendSelector:function (matches, selectorPath, replacementSelector) {
- //for a set of matches, replace each match with the replacement selector
- var currentSelectorPathIndex = 0,
- currentSelectorPathElementIndex = 0,
- path = [],
- matchIndex,
- selector,
- firstElement,
- match,
- newElements;
- for (matchIndex = 0; matchIndex < matches.length; matchIndex++) {
- match = matches[matchIndex];
- selector = selectorPath[match.pathIndex];
- firstElement = new tree.Element(
- match.initialCombinator,
- replacementSelector.elements[0].value,
- replacementSelector.elements[0].index,
- replacementSelector.elements[0].currentFileInfo
- );
- if (match.pathIndex > currentSelectorPathIndex && currentSelectorPathElementIndex > 0) {
- path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex));
- currentSelectorPathElementIndex = 0;
- currentSelectorPathIndex++;
- }
- newElements = selector.elements
- .slice(currentSelectorPathElementIndex, match.index)
- .concat([firstElement])
- .concat(replacementSelector.elements.slice(1));
- if (currentSelectorPathIndex === match.pathIndex && matchIndex > 0) {
- path[path.length - 1].elements =
- path[path.length - 1].elements.concat(newElements);
- } else {
- path = path.concat(selectorPath.slice(currentSelectorPathIndex, match.pathIndex));
- path.push(new tree.Selector(
- newElements
- ));
- }
- currentSelectorPathIndex = match.endPathIndex;
- currentSelectorPathElementIndex = match.endPathElementIndex;
- if (currentSelectorPathElementIndex >= selectorPath[currentSelectorPathIndex].elements.length) {
- currentSelectorPathElementIndex = 0;
- currentSelectorPathIndex++;
- }
- }
- if (currentSelectorPathIndex < selectorPath.length && currentSelectorPathElementIndex > 0) {
- path[path.length - 1].elements = path[path.length - 1].elements.concat(selectorPath[currentSelectorPathIndex].elements.slice(currentSelectorPathElementIndex));
- currentSelectorPathIndex++;
- }
- path = path.concat(selectorPath.slice(currentSelectorPathIndex, selectorPath.length));
- return path;
- },
- visitRulesetOut: function (rulesetNode) {
- },
- visitMedia: function (mediaNode, visitArgs) {
- var newAllExtends = mediaNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]);
- newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, mediaNode.allExtends));
- this.allExtendsStack.push(newAllExtends);
- },
- visitMediaOut: function (mediaNode) {
- this.allExtendsStack.length = this.allExtendsStack.length - 1;
- },
- visitDirective: function (directiveNode, visitArgs) {
- var newAllExtends = directiveNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length-1]);
- newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, directiveNode.allExtends));
- this.allExtendsStack.push(newAllExtends);
- },
- visitDirectiveOut: function (directiveNode) {
- this.allExtendsStack.length = this.allExtendsStack.length - 1;
- }
- };
- module.exports = ProcessExtendsVisitor;
- },{"../tree/index.js":43,"./visitor.js":69}],65:[function(require,module,exports){
- var contexts = require("../contexts.js"),
- Visitor = require("./visitor.js");
- var ImportVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) {
- this._visitor = new Visitor(this);
- this._importer = importer;
- this._finish = finish;
- this.env = evalEnv || new contexts.evalEnv();
- this.importCount = 0;
- this.onceFileDetectionMap = onceFileDetectionMap || {};
- this.recursionDetector = {};
- if (recursionDetector) {
- for(var fullFilename in recursionDetector) {
- if (recursionDetector.hasOwnProperty(fullFilename)) {
- this.recursionDetector[fullFilename] = true;
- }
- }
- }
- };
- ImportVisitor.prototype = {
- isReplacing: true,
- run: function (root) {
- var error;
- try {
- // process the contents
- this._visitor.visit(root);
- }
- catch(e) {
- error = e;
- }
- this.isFinished = true;
- if (this.importCount === 0) {
- this._finish(error);
- }
- },
- visitImport: function (importNode, visitArgs) {
- var importVisitor = this,
- evaldImportNode,
- inlineCSS = importNode.options.inline;
- if (!importNode.css || inlineCSS) {
- try {
- evaldImportNode = importNode.evalForImport(this.env);
- } catch(e){
- if (!e.filename) { e.index = importNode.index; e.filename = importNode.currentFileInfo.filename; }
- // attempt to eval properly and treat as css
- importNode.css = true;
- // if that fails, this error will be thrown
- importNode.error = e;
- }
- if (evaldImportNode && (!evaldImportNode.css || inlineCSS)) {
- importNode = evaldImportNode;
- this.importCount++;
- var env = new contexts.evalEnv(this.env, this.env.frames.slice(0));
- if (importNode.options.multiple) {
- env.importMultiple = true;
- }
- this._importer.push(importNode.getPath(), importNode.currentFileInfo, importNode.options, function (e, root, importedAtRoot, fullPath) {
- if (e && !e.filename) {
- e.index = importNode.index; e.filename = importNode.currentFileInfo.filename;
- }
- var duplicateImport = importedAtRoot || fullPath in importVisitor.recursionDetector;
- if (!env.importMultiple) {
- if (duplicateImport) {
- importNode.skip = true;
- } else {
- importNode.skip = function() {
- if (fullPath in importVisitor.onceFileDetectionMap) {
- return true;
- }
- importVisitor.onceFileDetectionMap[fullPath] = true;
- return false;
- };
- }
- }
- var subFinish = function(e) {
- importVisitor.importCount--;
- if (importVisitor.importCount === 0 && importVisitor.isFinished) {
- importVisitor._finish(e);
- }
- };
- if (root) {
- importNode.root = root;
- importNode.importedFilename = fullPath;
- if (!inlineCSS && (env.importMultiple || !duplicateImport)) {
- importVisitor.recursionDetector[fullPath] = true;
- new(ImportVisitor)(importVisitor._importer, subFinish, env, importVisitor.onceFileDetectionMap, importVisitor.recursionDetector)
- .run(root);
- return;
- }
- }
- subFinish();
- });
- }
- }
- visitArgs.visitDeeper = false;
- return importNode;
- },
- visitRule: function (ruleNode, visitArgs) {
- visitArgs.visitDeeper = false;
- return ruleNode;
- },
- visitDirective: function (directiveNode, visitArgs) {
- this.env.frames.unshift(directiveNode);
- return directiveNode;
- },
- visitDirectiveOut: function (directiveNode) {
- this.env.frames.shift();
- },
- visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
- this.env.frames.unshift(mixinDefinitionNode);
- return mixinDefinitionNode;
- },
- visitMixinDefinitionOut: function (mixinDefinitionNode) {
- this.env.frames.shift();
- },
- visitRuleset: function (rulesetNode, visitArgs) {
- this.env.frames.unshift(rulesetNode);
- return rulesetNode;
- },
- visitRulesetOut: function (rulesetNode) {
- this.env.frames.shift();
- },
- visitMedia: function (mediaNode, visitArgs) {
- this.env.frames.unshift(mediaNode.rules[0]);
- return mediaNode;
- },
- visitMediaOut: function (mediaNode) {
- this.env.frames.shift();
- }
- };
- module.exports = ImportVisitor;
- },{"../contexts.js":2,"./visitor.js":69}],66:[function(require,module,exports){
- var visitors = {
- Visitor: require("./visitor"),
- ImportVisitor: require('./import-visitor.js'),
- ExtendVisitor: require('./extend-visitor.js'),
- JoinSelectorVisitor: require('./join-selector-visitor.js'),
- ToCSSVisitor: require('./to-css-visitor.js')
- };
- module.exports = visitors;
- },{"./extend-visitor.js":64,"./import-visitor.js":65,"./join-selector-visitor.js":67,"./to-css-visitor.js":68,"./visitor":69}],67:[function(require,module,exports){
- var Visitor = require("./visitor.js");
- var JoinSelectorVisitor = function() {
- this.contexts = [[]];
- this._visitor = new Visitor(this);
- };
- JoinSelectorVisitor.prototype = {
- run: function (root) {
- return this._visitor.visit(root);
- },
- visitRule: function (ruleNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
- visitArgs.visitDeeper = false;
- },
- visitRuleset: function (rulesetNode, visitArgs) {
- var context = this.contexts[this.contexts.length - 1],
- paths = [], selectors;
- this.contexts.push(paths);
- if (! rulesetNode.root) {
- selectors = rulesetNode.selectors;
- if (selectors) {
- selectors = selectors.filter(function(selector) { return selector.getIsOutput(); });
- rulesetNode.selectors = selectors.length ? selectors : (selectors = null);
- if (selectors) { rulesetNode.joinSelectors(paths, context, selectors); }
- }
- if (!selectors) { rulesetNode.rules = null; }
- rulesetNode.paths = paths;
- }
- },
- visitRulesetOut: function (rulesetNode) {
- this.contexts.length = this.contexts.length - 1;
- },
- visitMedia: function (mediaNode, visitArgs) {
- var context = this.contexts[this.contexts.length - 1];
- mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia);
- }
- };
- module.exports = JoinSelectorVisitor;
- },{"./visitor.js":69}],68:[function(require,module,exports){
- var tree = require("../tree/index.js"),
- Visitor = require("./visitor.js");
- var ToCSSVisitor = function(env) {
- this._visitor = new Visitor(this);
- this._env = env;
- };
- ToCSSVisitor.prototype = {
- isReplacing: true,
- run: function (root) {
- return this._visitor.visit(root);
- },
- visitRule: function (ruleNode, visitArgs) {
- if (ruleNode.variable) {
- return [];
- }
- return ruleNode;
- },
- visitMixinDefinition: function (mixinNode, visitArgs) {
- // mixin definitions do not get eval'd - this means they keep state
- // so we have to clear that state here so it isn't used if toCSS is called twice
- mixinNode.frames = [];
- return [];
- },
- visitExtend: function (extendNode, visitArgs) {
- return [];
- },
- visitComment: function (commentNode, visitArgs) {
- if (commentNode.isSilent(this._env)) {
- return [];
- }
- return commentNode;
- },
- visitMedia: function(mediaNode, visitArgs) {
- mediaNode.accept(this._visitor);
- visitArgs.visitDeeper = false;
- if (!mediaNode.rules.length) {
- return [];
- }
- return mediaNode;
- },
- visitDirective: function(directiveNode, visitArgs) {
- if (directiveNode.currentFileInfo.reference && !directiveNode.isReferenced) {
- return [];
- }
- if (directiveNode.name === "@charset") {
- // Only output the debug info together with subsequent @charset definitions
- // a comment (or @media statement) before the actual @charset directive would
- // be considered illegal css as it has to be on the first line
- if (this.charset) {
- if (directiveNode.debugInfo) {
- var comment = new tree.Comment("/* " + directiveNode.toCSS(this._env).replace(/\n/g, "")+" */\n");
- comment.debugInfo = directiveNode.debugInfo;
- return this._visitor.visit(comment);
- }
- return [];
- }
- this.charset = true;
- }
- if (directiveNode.rules && directiveNode.rules.rules) {
- this._mergeRules(directiveNode.rules.rules);
- }
- return directiveNode;
- },
- checkPropertiesInRoot: function(rules) {
- var ruleNode;
- for(var i = 0; i < rules.length; i++) {
- ruleNode = rules[i];
- if (ruleNode instanceof tree.Rule && !ruleNode.variable) {
- throw { message: "properties must be inside selector blocks, they cannot be in the root.",
- index: ruleNode.index, filename: ruleNode.currentFileInfo ? ruleNode.currentFileInfo.filename : null};
- }
- }
- },
- visitRuleset: function (rulesetNode, visitArgs) {
- var rule, rulesets = [];
- if (rulesetNode.firstRoot) {
- this.checkPropertiesInRoot(rulesetNode.rules);
- }
- if (! rulesetNode.root) {
- if (rulesetNode.paths) {
- rulesetNode.paths = rulesetNode.paths
- .filter(function(p) {
- var i;
- if (p[0].elements[0].combinator.value === ' ') {
- p[0].elements[0].combinator = new(tree.Combinator)('');
- }
- for(i = 0; i < p.length; i++) {
- if (p[i].getIsReferenced() && p[i].getIsOutput()) {
- return true;
- }
- }
- return false;
- });
- }
- // Compile rules and rulesets
- var nodeRules = rulesetNode.rules, nodeRuleCnt = nodeRules ? nodeRules.length : 0;
- for (var i = 0; i < nodeRuleCnt; ) {
- rule = nodeRules[i];
- if (rule && rule.rules) {
- // visit because we are moving them out from being a child
- rulesets.push(this._visitor.visit(rule));
- nodeRules.splice(i, 1);
- nodeRuleCnt--;
- continue;
- }
- i++;
- }
- // accept the visitor to remove rules and refactor itself
- // then we can decide now whether we want it or not
- if (nodeRuleCnt > 0) {
- rulesetNode.accept(this._visitor);
- } else {
- rulesetNode.rules = null;
- }
- visitArgs.visitDeeper = false;
- nodeRules = rulesetNode.rules;
- if (nodeRules) {
- this._mergeRules(nodeRules);
- nodeRules = rulesetNode.rules;
- }
- if (nodeRules) {
- this._removeDuplicateRules(nodeRules);
- nodeRules = rulesetNode.rules;
- }
- // now decide whether we keep the ruleset
- if (nodeRules && nodeRules.length > 0 && rulesetNode.paths.length > 0) {
- rulesets.splice(0, 0, rulesetNode);
- }
- } else {
- rulesetNode.accept(this._visitor);
- visitArgs.visitDeeper = false;
- if (rulesetNode.firstRoot || (rulesetNode.rules && rulesetNode.rules.length > 0)) {
- rulesets.splice(0, 0, rulesetNode);
- }
- }
- if (rulesets.length === 1) {
- return rulesets[0];
- }
- return rulesets;
- },
- _removeDuplicateRules: function(rules) {
- if (!rules) { return; }
- // remove duplicates
- var ruleCache = {},
- ruleList, rule, i;
- for(i = rules.length - 1; i >= 0 ; i--) {
- rule = rules[i];
- if (rule instanceof tree.Rule) {
- if (!ruleCache[rule.name]) {
- ruleCache[rule.name] = rule;
- } else {
- ruleList = ruleCache[rule.name];
- if (ruleList instanceof tree.Rule) {
- ruleList = ruleCache[rule.name] = [ruleCache[rule.name].toCSS(this._env)];
- }
- var ruleCSS = rule.toCSS(this._env);
- if (ruleList.indexOf(ruleCSS) !== -1) {
- rules.splice(i, 1);
- } else {
- ruleList.push(ruleCSS);
- }
- }
- }
- }
- },
- _mergeRules: function (rules) {
- if (!rules) { return; }
- var groups = {},
- parts,
- rule,
- key;
- for (var i = 0; i < rules.length; i++) {
- rule = rules[i];
- if ((rule instanceof tree.Rule) && rule.merge) {
- key = [rule.name,
- rule.important ? "!" : ""].join(",");
- if (!groups[key]) {
- groups[key] = [];
- } else {
- rules.splice(i--, 1);
- }
- groups[key].push(rule);
- }
- }
- Object.keys(groups).map(function (k) {
- function toExpression(values) {
- return new (tree.Expression)(values.map(function (p) {
- return p.value;
- }));
- }
- function toValue(values) {
- return new (tree.Value)(values.map(function (p) {
- return p;
- }));
- }
- parts = groups[k];
- if (parts.length > 1) {
- rule = parts[0];
- var spacedGroups = [];
- var lastSpacedGroup = [];
- parts.map(function (p) {
- if (p.merge==="+") {
- if (lastSpacedGroup.length > 0) {
- spacedGroups.push(toExpression(lastSpacedGroup));
- }
- lastSpacedGroup = [];
- }
- lastSpacedGroup.push(p);
- });
- spacedGroups.push(toExpression(lastSpacedGroup));
- rule.value = toValue(spacedGroups);
- }
- });
- }
- };
- module.exports = ToCSSVisitor;
- },{"../tree/index.js":43,"./visitor.js":69}],69:[function(require,module,exports){
- var tree = require("../tree/index.js");
- var _visitArgs = { visitDeeper: true },
- _hasIndexed = false;
- function _noop(node) {
- return node;
- }
- function indexNodeTypes(parent, ticker) {
- // add .typeIndex to tree node types for lookup table
- var key, child;
- for (key in parent) {
- if (parent.hasOwnProperty(key)) {
- child = parent[key];
- switch (typeof child) {
- case "function":
- // ignore bound functions directly on tree which do not have a prototype
- // or aren't nodes
- if (child.prototype && child.prototype.type) {
- child.prototype.typeIndex = ticker++;
- }
- break;
- case "object":
- ticker = indexNodeTypes(child, ticker);
- break;
- }
- }
- }
- return ticker;
- }
- var Visitor = function(implementation) {
- this._implementation = implementation;
- this._visitFnCache = [];
- if (!_hasIndexed) {
- indexNodeTypes(tree, 1);
- _hasIndexed = true;
- }
- };
- Visitor.prototype = {
- visit: function(node) {
- if (!node) {
- return node;
- }
- var nodeTypeIndex = node.typeIndex;
- if (!nodeTypeIndex) {
- return node;
- }
- var visitFnCache = this._visitFnCache,
- impl = this._implementation,
- aryIndx = nodeTypeIndex << 1,
- outAryIndex = aryIndx | 1,
- func = visitFnCache[aryIndx],
- funcOut = visitFnCache[outAryIndex],
- visitArgs = _visitArgs,
- fnName;
- visitArgs.visitDeeper = true;
- if (!func) {
- fnName = "visit" + node.type;
- func = impl[fnName] || _noop;
- funcOut = impl[fnName + "Out"] || _noop;
- visitFnCache[aryIndx] = func;
- visitFnCache[outAryIndex] = funcOut;
- }
- if (func !== _noop) {
- var newNode = func.call(impl, node, visitArgs);
- if (impl.isReplacing) {
- node = newNode;
- }
- }
- if (visitArgs.visitDeeper && node && node.accept) {
- node.accept(this);
- }
- if (funcOut != _noop) {
- funcOut.call(impl, node);
- }
- return node;
- },
- visitArray: function(nodes, nonReplacing) {
- if (!nodes) {
- return nodes;
- }
- var cnt = nodes.length, i;
- // Non-replacing
- if (nonReplacing || !this._implementation.isReplacing) {
- for (i = 0; i < cnt; i++) {
- this.visit(nodes[i]);
- }
- return nodes;
- }
- // Replacing
- var out = [];
- for (i = 0; i < cnt; i++) {
- var evald = this.visit(nodes[i]);
- if (!evald.splice) {
- out.push(evald);
- } else if (evald.length) {
- this.flatten(evald, out);
- }
- }
- return out;
- },
- flatten: function(arr, out) {
- if (!out) {
- out = [];
- }
- var cnt, i, item,
- nestedCnt, j, nestedItem;
- for (i = 0, cnt = arr.length; i < cnt; i++) {
- item = arr[i];
- if (!item.splice) {
- out.push(item);
- continue;
- }
- for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) {
- nestedItem = item[j];
- if (!nestedItem.splice) {
- out.push(nestedItem);
- } else if (nestedItem.length) {
- this.flatten(nestedItem, out);
- }
- }
- }
- return out;
- }
- };
- module.exports = Visitor;
- },{"../tree/index.js":43}]},{},[1])