[Pkg-javascript-commits] [less.js] 201/285: build v2 beta and update changelog
Jonas Smedegaard
dr at jones.dk
Mon Oct 26 23:23:54 UTC 2015
This is an automated email from the git hooks/post-receive script.
js pushed a commit to annotated tag v2.0.0
in repository less.js.
commit 4a0d806f421082dfedba4e148123f216ba0d0645
Author: Luke Page <luke.a.page at gmail.com>
Date: Sun Oct 19 21:43:24 2014 +0100
build v2 beta and update changelog
---
CHANGELOG.md | 27 +-
bower.json | 2 +-
dist/less.js | 9202 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
dist/less.min.js | 16 +
4 files changed, 9237 insertions(+), 10 deletions(-)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04a708c..12c5d7d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,14 +1,23 @@
-#2.0.0
+# 2.0.0-b1
-2014-??-??
+2014-10-19
+ - Public Beta / Release Candidate - Feedback welcome
+ For a guide to breaking changes see [the v2 upgrade guide](lesscss.org/usage/#v2-upgrade-guide)
- no longer including old versions of less in the repo or npm
- - not including test and gradle files in npm (Note: TODO may need to move some test framework into lib for core plugins)
+ - not including test less and gradle files in npm
- colours now output in the format they are added unless compressing, so yellow will output yellow, not its hex counterpart
- - better parsing - better comment support (TODO) and comments in brackets can now contain comments including quotes.
-TODO
- - Environment Support
- - Finalised Plugin Support
+ - better parsing - better comment support and comments in brackets can now contain comments including quotes.
+ - Removal of dependency on clean-css - install less-plugin-clean-css and use --clean-css to reference plugin
+ - Environment Support - less is now separate from its node and browser environment implementations and adding support for another javascript environment should be straight forward.
+ - Plugin Support - it is now straight forward to add AST manipulations (see less-plugin-inline-images), file managers (see less-plugin-npm-import) and post processors (see less-plugin-clean-css and less-plugin-autoprefix).
+ - We now recommend using less.render and using the parser directly is not in the same way as in v2. It is possible but it would require changes and we do not guarantee it will not be broken in minor version releases.
+ - In the browser, less.pageLoadFinished will be a promise, resolved when less has finished its initial processing. less.refresh and less.modifyVars also return promises.
+ - In the browser, as before less is used as options, however this is now copied to less.options if you need to access after less has run
+ - In the browser, the cache can be overwritten by setting less.cache before less loads. After load less.cache will be the default implementation.
+ - less.js now uses browserify to generate its browser side component
+ - default values for the sourcemap options have been re-done and improved to hopefully mean creating sourcemaps is easier
+ - Many smaller bugfixes and API changes. Please let us know if something you relied on has disappeared or an area should be better documented.
# 1.7.5
@@ -22,7 +31,7 @@ TODO
- updates to some dependencies
- Fix interpolated import in media query
- A few other various small corrections
-
+
# 1.7.4
2014-07-27
@@ -49,7 +58,7 @@ TODO
- Allow paths option to be a string (in 1.7.1 less started throwing an exception instead of incorrectly processing the string as an array of chars)
- Do not round numbers when used with javascript (introduced 1.7.0)
-
+
# 1.7.1
2014-06-08
diff --git a/bower.json b/bower.json
index 395a031..eb4120e 100644
--- a/bower.json
+++ b/bower.json
@@ -21,4 +21,4 @@
".jshintrc",
".npmignore"
]
-}
+}
\ No newline at end of file
diff --git a/dist/less.js b/dist/less.js
new file mode 100644
index 0000000..6c2e79a
--- /dev/null
+++ b/dist/less.js
@@ -0,0 +1,9202 @@
+/*!
+ * Less - Leaner CSS v2.0.0-b1
+ * http://lesscss.org
+ *
+ * Copyright (c) 2009-2014, Alexis Sellier <self at cloudhead.net>
+ * Licensed under the Apache v2 License.
+ *
+ */
+
+ /** * @license Apache v2
+ */
+
+require=(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);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.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){
+var utils = require("./utils");
+module.exports = {
+ createCSS: function (document, styles, sheet) {
+ // 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 || utils.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.");
+ }
+ }
+ }
+};
+
+},{"./utils":7}],2:[function(require,module,exports){
+// Cache system is a bit outdated and could do with work
+
+module.exports = function(window, options, logger) {
+ var cache = null;
+ if (options.env !== 'development') {
+ try {
+ cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
+ } catch (_) {}
+ }
+ return {
+ setCSS: function(path, lastModified, styles) {
+ if (cache) {
+ logger.info('saving ' + path+ ' to cache.');
+ try {
+ cache.setItem(path, styles);
+ cache.setItem(path + ':timestamp', lastModified);
+ } catch(e) {
+ //TODO - could do with adding more robust error handling
+ logger.error('failed to save');
+ }
+ }
+ },
+ getCSS: function(path, webInfo) {
+ var css = cache && cache.getItem(path),
+ timestamp = cache && cache.getItem(path + ':timestamp');
+
+ if (timestamp && webInfo.lastModified &&
+ (new Date(webInfo.lastModified).valueOf() ===
+ new Date(timestamp).valueOf())) {
+ // Use local copy
+ return css;
+ }
+ }
+ };
+};
+
+},{}],3:[function(require,module,exports){
+var utils = require("./utils"),
+ browser = require("./browser");
+
+module.exports = function(window, less, options) {
+
+ function errorHTML(e, rootHref) {
+ var id = 'less-error-message:' + utils.extractId(rootHref || "");
+ var template = '<li><label>{line}</label><pre class="{class}">{content}</pre></li>';
+ var elem = window.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>';
+ }
+ if (e.stack && (e.extract || options.logLevel >= 4)) {
+ content += '<br/>Stack Trace</br />' + e.stack.split('\n').slice(1).join('<br/>');
+ }
+ elem.innerHTML = content;
+
+ // CSS for error messages
+ browser.createCSS(window.document, [
+ '.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 (options.env === 'development') {
+ timer = setInterval(function () {
+ var document = window.document,
+ body = document.body;
+ if (body) {
+ if (document.getElementById(id)) {
+ body.replaceChild(elem, document.getElementById(id));
+ } else {
+ body.insertBefore(elem, 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 = window.document.getElementById('less-error-message:' + utils.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 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');
+ }
+ if (e.stack && (e.extract || options.logLevel >= 4)) {
+ content += '\nStack Trace\n' + e.stack;
+ }
+ less.logger.error(content);
+ }
+
+ return {
+ add: error,
+ remove: removeError
+ };
+};
+
+},{"./browser":1,"./utils":7}],4:[function(require,module,exports){
+/*global window, XMLHttpRequest */
+
+module.exports = function(options, isFileProtocol, logger) {
+
+var PromiseConstructor = typeof Promise === 'undefined' ? require('promise') : Promise,
+ AbstractFileManager = require("../less/environment/abstract-file-manager.js");
+
+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) {
+ logger.error("browser doesn't support AJAX.");
+ return null;
+ }
+ }
+}
+
+var FileManager = function() {
+};
+
+FileManager.prototype = new AbstractFileManager();
+
+FileManager.prototype.alwaysMakePathsAbsolute = function alwaysMakePathsAbsolute() {
+ return true;
+};
+FileManager.prototype.join = function join(basePath, laterPath) {
+ if (!basePath) {
+ return laterPath;
+ }
+ return this.extractUrlParts(laterPath, basePath).path;
+};
+FileManager.prototype.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');
+ }
+ logger.debug("XHR: Getting '" + url + "'");
+ 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);
+ }
+};
+FileManager.prototype.supports = function(filename, currentDirectory, options, environment) {
+ return true;
+};
+
+FileManager.prototype.loadFile = function loadFile(filename, currentDirectory, options, environment) {
+ return new PromiseConstructor(function(fullfill, reject) {
+ if (currentDirectory && !this.isPathAbsolute(filename)) {
+ filename = currentDirectory + filename;
+ }
+
+ options = options || {};
+
+ // sheet may be set to the stylesheet for the initial load or a collection of properties including
+ // some context variables for imports
+ var hrefParts = this.extractUrlParts(filename, window.location.href);
+ var href = hrefParts.url;
+
+ if (options.useFileCache && fileCache[href]) {
+ try {
+ var lessText = fileCache[href];
+ fullfill({ contents: lessText, filename: href, webInfo: { lastModified: new Date() }});
+ } catch (e) {
+ reject({filename: href, message: "Error loading file " + href + " error was " + e.message});
+ }
+ return;
+ }
+
+ this.doXHR(href, options.mime, function doXHRCallback(data, lastModified) {
+ // per file cache
+ fileCache[href] = data;
+
+ // Use remote copy (re-parse)
+ fullfill({ contents: data, filename: href, webInfo: { lastModified: lastModified }});
+ }, function doXHRError(status, url) {
+ reject({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")", href: href });
+ });
+ }.bind(this));
+};
+
+return FileManager;
+};
+
+},{"../less/environment/abstract-file-manager.js":12,"promise":undefined}],5:[function(require,module,exports){
+//
+// browser.js - client-side engine
+//
+/*global window, document, location */
+
+var less;
+
+/*
+ TODO - options is now hidden - we should expose it on the less object, but not have it "as" the less object
+ less = { fileAsync: true }
+ then access as less.environment.options.fileAsync ?
+ */
+
+var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(window.location.protocol),
+ options = window.less || {};
+
+// shim Promise if required
+require('promise/polyfill.js');
+
+window.less = less = require('../less')();
+var environment = less.environment,
+ FileManager = require("./file-manager")(options, isFileProtocol, less.logger),
+ fileManager = new FileManager();
+environment.addFileManager(fileManager);
+less.FileManager = FileManager;
+
+require("./log-listener")(less, options);
+var errors = require("./error-reporting")(window, less, options);
+var browser = require("./browser");
+var cache = less.cache = options.cache || require("./cache")(window, options, less.logger);
+
+options.env = options.env || (window.location.hostname == '127.0.0.1' ||
+ window.location.hostname == '0.0.0.0' ||
+ window.location.hostname == 'localhost' ||
+ (window.location.port &&
+ window.location.port.length > 0) ||
+ isFileProtocol ? 'development'
+ : 'production');
+
+// 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
+options.poll = options.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) {
+ options.dumpLineNumbers = dumpLineNumbers[1];
+}
+
+var typePattern = /^text\/(x-)?less$/;
+
+function postProcessCSS(styles) {
+ if (options.postProcessor && typeof options.postProcessor === 'function') {
+ styles = options.postProcessor.call(styles, styles) || styles;
+ }
+ return styles;
+}
+
+function clone(obj) {
+ var cloned = {};
+ for(var prop in obj) {
+ if (obj.hasOwnProperty(prop)) {
+ cloned[prop] = obj[prop];
+ }
+ }
+ return cloned;
+}
+
+// only really needed for phantom
+function bind(func, thisArg) {
+ var curryArgs = Array.prototype.slice.call(arguments, 2);
+ return function() {
+ var args = curryArgs.concat(Array.prototype.slice.call(arguments, 0));
+ return func.apply(thisArg, args);
+ };
+}
+
+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 instanceOptions = clone(options);
+ instanceOptions.modifyVars = modifyVars;
+ var lessText = style.innerHTML || '';
+ instanceOptions.filename = document.location.href.replace(/#.*$/, '');
+
+ if (modifyVars || instanceOptions.globalVars) {
+ instanceOptions.useFileCache = true;
+ }
+
+ /*jshint loopfunc:true */
+ // use closure to store current style
+ less.render(lessText, instanceOptions)
+ .then(bind(function(style, result) {
+ style.type = 'text/css';
+ if (style.styleSheet) {
+ style.styleSheet.cssText = result.css;
+ } else {
+ style.innerHTML = result.css;
+ }
+ }, null, style),
+ function(e) {
+ errors.add(e, "inline");
+ });
+ }
+ }
+}
+
+function loadStyleSheet(sheet, callback, reload, remaining, modifyVars) {
+
+ var instanceOptions = clone(options);
+ instanceOptions.mime = sheet.type;
+
+ if (modifyVars) {
+ instanceOptions.modifyVars = modifyVars;
+ }
+ if (modifyVars || options.globalVars) {
+ instanceOptions.useFileCache = true;
+ }
+
+ fileManager.loadFile(sheet.href, null, instanceOptions, environment)
+ .then(function loadInitialFileCallback(loadedFile) {
+
+ var data = loadedFile.contents,
+ path = loadedFile.filename,
+ webInfo = loadedFile.webInfo;
+
+ var newFileInfo = {
+ currentDirectory: fileManager.getPath(path),
+ filename: path,
+ rootFilename: path,
+ relativeUrls: instanceOptions.relativeUrls};
+
+ newFileInfo.entryPath = newFileInfo.currentDirectory;
+ newFileInfo.rootpath = instanceOptions.rootpath || newFileInfo.currentDirectory;
+
+ if (webInfo) {
+ webInfo.remaining = remaining;
+
+ var css = cache.getCSS(path, webInfo);
+ if (!reload && css) {
+ browser.createCSS(window.document, css, sheet);
+ webInfo.local = true;
+ callback(null, null, data, sheet, webInfo, path);
+ return;
+ }
+ }
+
+ //TODO add tests around how this behaves when reloading
+ errors.remove(path);
+
+ instanceOptions.rootFileInfo = newFileInfo;
+ less.render(data, instanceOptions)
+ .then(function(result) {
+ callback(null, result.css, data, sheet, webInfo, path);
+ },
+ function(e) {
+ e.href = path;
+ callback(e);
+ });
+ },
+ function(e) {
+ callback(e);
+ });
+}
+
+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, css, _, sheet, context) {
+ if (e) {
+ errors.add(e, e.href || sheet.href);
+ } else if (css) {
+ css = postProcessCSS(css);
+ browser.createCSS(window.document, css, sheet);
+ cache.setCSS(sheet.href, context.lastModified, css);
+ }
+ });
+ }
+ }, 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();
+}
+
+//
+// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
+//
+less.registerStylesheets = function() {
+ return new Promise(function(resolve, reject) {
+ 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]);
+ }
+ }
+
+ resolve();
+ });
+};
+
+//
+// With this function, it's possible to alter variables and re-render
+// CSS without reloading less-files
+//
+less.modifyVars = function(record) {
+ return less.refresh(false, record);
+};
+
+less.refresh = function (reload, modifyVars) {
+ return new Promise(function (resolve, reject) {
+ var startTime, endTime, totalMilliseconds;
+ startTime = endTime = new Date();
+
+ loadStyleSheets(function (e, css, _, sheet, webInfo) {
+ if (e) {
+ errors.add(e, e.href || sheet.href);
+ reject(e);
+ }
+ if (webInfo.local) {
+ less.logger.info("loading " + sheet.href + " from cache.");
+ } else {
+ less.logger.info("rendered " + sheet.href + " successfully.");
+ css = postProcessCSS(css);
+ browser.createCSS(window.document, css, sheet);
+ cache.setCSS(sheet.href, webInfo.lastModified, css);
+ }
+ less.logger.info("css for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms');
+ if (webInfo.remaining === 0) {
+ totalMilliseconds = new Date() - startTime;
+ less.logger.info("less has finished. css generated in " + totalMilliseconds + 'ms');
+ resolve({
+ startTime: startTime,
+ endTime: endTime,
+ totalMilliseconds: totalMilliseconds,
+ sheets: less.sheets.length
+ });
+ }
+ endTime = new Date();
+ }, reload, modifyVars);
+
+ loadStyles(modifyVars);
+ });
+};
+
+less.refreshStyles = loadStyles;
+
+less.pageLoadFinished = less.registerStylesheets().then(
+ function () {
+ return less.refresh(less.env === 'development');
+ }
+);
+
+},{"../less":27,"./browser":1,"./cache":2,"./error-reporting":3,"./file-manager":4,"./log-listener":6,"promise/polyfill.js":undefined}],6:[function(require,module,exports){
+module.exports = function(less, options) {
+
+ var logLevel_debug = 4,
+ logLevel_info = 3,
+ logLevel_warn = 2,
+ logLevel_error = 1;
+
+ // The amount of logging in the javascript console.
+ // 3 - Debug, information and errors
+ // 2 - Information and errors
+ // 1 - Errors
+ // 0 - None
+ // Defaults to 2
+ options.logLevel = typeof(options.logLevel) !== 'undefined' ? options.logLevel : (options.env === 'development' ? logLevel_info : logLevel_error);
+
+ if (!options.loggers) {
+ options.loggers = [{
+ debug: function(msg) {
+ if (options.logLevel >= logLevel_debug) {
+ console.log(msg);
+ }
+ },
+ info: function(msg) {
+ if (options.logLevel >= logLevel_info) {
+ console.log(msg);
+ }
+ },
+ warn: function(msg) {
+ if (options.logLevel >= logLevel_warn) {
+ console.warn(msg);
+ }
+ },
+ error: function(msg) {
+ if (options.logLevel >= logLevel_error) {
+ console.error(msg);
+ }
+ }
+ }];
+ }
+ for(var i = 0; i < options.loggers.length; i++) {
+ less.logger.addListener(options.loggers[i]);
+ }
+};
+
+},{}],7:[function(require,module,exports){
+module.exports = {
+ extractId: function(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)
+ }
+};
+
+},{}],8:[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]];
+ }
+ }
+};
+
+/*
+ parse is used whilst parsing
+ */
+var parseCopyProperties = [
+ // options
+ 'paths', // option - unmodified - paths to search for imports on
+ '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
+ '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
+ // context
+ 'processImports', // option & context - whether to process imports. if false then imports will not be imported.
+ // Used by the import manager to stop multiple import visitors being created.
+ 'reference', // Used to indicate that the contents are imported by reference
+ 'pluginManager' // Used as the plugin manager for the session
+];
+
+contexts.Parse = function(options) {
+ copyFromOriginal(options, this, parseCopyProperties);
+
+ if (typeof this.paths === "string") { this.paths = [this.paths]; }
+};
+
+var evalCopyProperties = [
+ 'compress', // whether to compress
+ 'ieCompat', // whether to enforce IE compatibility (IE8 data-uri)
+ 'strictMath', // whether math has to be within parenthesis
+ 'strictUnits', // whether units need to evaluate correctly
+ '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
+ 'pluginManager' // Used as the plugin manager for the session
+ ];
+
+contexts.Eval = function(options, frames) {
+ copyFromOriginal(options, this, evalCopyProperties);
+
+ this.frames = frames || [];
+};
+
+contexts.Eval.prototype.inParenthesis = function () {
+ if (!this.parensStack) {
+ this.parensStack = [];
+ }
+ this.parensStack.push(true);
+};
+
+contexts.Eval.prototype.outOfParenthesis = function () {
+ this.parensStack.pop();
+};
+
+contexts.Eval.prototype.isMathOn = function () {
+ return this.strictMath ? (this.parensStack && this.parensStack.length) : true;
+};
+
+contexts.Eval.prototype.isPathRelative = function (path) {
+ return !/^(?:[a-z-]+:|\/)/.test(path);
+};
+
+contexts.Eval.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 ?
+
+
+},{}],9:[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'
+};
+},{}],10:[function(require,module,exports){
+module.exports = {
+ colors: require("./colors"),
+ unitConversions: require("./unit-conversions")
+};
+
+},{"./colors":9,"./unit-conversions":11}],11:[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
+ }
+};
+},{}],12:[function(require,module,exports){
+var abstractFileManager = function() {
+};
+
+abstractFileManager.prototype.getPath = function (filename) {
+ var j = filename.lastIndexOf('/');
+ if (j < 0) {
+ j = filename.lastIndexOf('\\');
+ }
+ if (j < 0) {
+ return "";
+ }
+ return filename.slice(0, j + 1);
+};
+
+abstractFileManager.prototype.supportsSync = function() {
+ return false;
+};
+
+abstractFileManager.prototype.alwaysMakePathsAbsolute = function() {
+ return false;
+};
+
+abstractFileManager.prototype.isPathAbsolute = function(filename) {
+ return (/^(?:[a-z-]+:|\/|\\)/i).test(filename);
+};
+
+abstractFileManager.prototype.join = function(basePath, laterPath) {
+ if (!basePath) {
+ return laterPath;
+ }
+ return basePath + laterPath;
+};
+abstractFileManager.prototype.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;
+};
+// helper function, not part of API
+abstractFileManager.prototype.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 (baseUrl && (!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;
+};
+
+module.exports = abstractFileManager;
+
+},{}],13:[function(require,module,exports){
+var environment = function(externalEnvironment, fileManagers) {
+ this.fileManagers = fileManagers || [];
+ externalEnvironment = externalEnvironment || {};
+
+ var optionalFunctions = ["encodeBase64", "mimeLookup", "charsetLookup", "getSourceMapGenerator"],
+ requiredFunctions = [],
+ functions = requiredFunctions.concat(optionalFunctions);
+
+ for(var i = 0; i < functions.length; i++) {
+ var propName = functions[i],
+ environmentFunc = externalEnvironment[propName];
+ if (environmentFunc) {
+ this[propName] = environmentFunc.bind(externalEnvironment);
+ } else if (i < requiredFunctions.length) {
+ this.warn("missing required function in environment - " + propName);
+ }
+ }
+};
+
+environment.prototype.getFileManager = function (filename, currentDirectory, options, environment, isSync) {
+ var fileManagers = this.fileManagers;
+ if (options.pluginManager) {
+ fileManagers = [].concat(fileManagers).concat(options.pluginManager.getFileManagers());
+ }
+ for(var i = fileManagers.length - 1; i >= 0 ; i--) {
+ var fileManager = fileManagers[i];
+ if (fileManager[isSync ? "supportsSync" : "supports"](filename, currentDirectory, options, environment)) {
+ return fileManager;
+ }
+ }
+ return null;
+};
+
+environment.prototype.addFileManager = function (fileManager) {
+ this.fileManagers.push(fileManager);
+};
+
+environment.prototype.clearFileManagers = function () {
+ this.fileManagers = [];
+};
+
+module.exports = environment;
+
+},{}],14:[function(require,module,exports){
+var Color = require("../tree/color"),
+ functionRegistry = require("./function-registry");
+
+// 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":44,"./function-registry":19}],15:[function(require,module,exports){
+var Dimension = require("../tree/dimension"),
+ Color = require("../tree/color"),
+ Quoted = require("../tree/quoted"),
+ Anonymous = require("../tree/anonymous"),
+ functionRegistry = require("./function-registry"),
+ 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 {
+ type: "Argument",
+ 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":40,"../tree/color":44,"../tree/dimension":50,"../tree/quoted":67,"./function-registry":19}],16:[function(require,module,exports){
+module.exports = function(environment) {
+ var Anonymous = require("../tree/anonymous"),
+ URL = require("../tree/url"),
+ functionRegistry = require("./function-registry"),
+ fallback = function(functionThis, node) {
+ return new URL(node, functionThis.index, functionThis.currentFileInfo).eval(functionThis.context);
+ },
+ logger = require('../logger');
+
+ functionRegistry.add("data-uri", function(mimetypeNode, filePathNode) {
+
+ var mimetype = mimetypeNode.value;
+ var filePath = (filePathNode && filePathNode.value);
+
+ var fileManager = environment.getFileManager(filePath, this.context.currentFileInfo, this.context, environment, true);
+
+ if (!fileManager) {
+ return fallback(this, filePathNode || mimetypeNode);
+ }
+
+ 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);
+ }
+
+ var currentDirectory = this.currentFileInfo.relativeUrls ?
+ this.currentFileInfo.currentDirectory : this.currentFileInfo.entryPath;
+
+ // detect the mimetype if not given
+ if (arguments.length < 2) {
+
+ mimetype = environment.mimeLookup(filePath);
+
+ // use base 64 unless it's an ASCII or UTF-8 format
+ var charset = environment.charsetLookup(mimetype);
+ useBase64 = ['US-ASCII', 'UTF-8'].indexOf(charset) < 0;
+ if (useBase64) { mimetype += ';base64'; }
+ }
+ else {
+ useBase64 = /;base64$/.test(mimetype);
+ }
+
+ var fileSync = fileManager.loadFileSync(filePath, currentDirectory, this.context, environment);
+ if (!fileSync.contents) {
+ logger.warn("Skipped data-uri embedding because file not found");
+ return fallback(this, filePathNode || mimetypeNode);
+ }
+ var buf = fileSync.contents;
+
+ // 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.context.ieCompat !== false) {
+ logger.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB);
+
+ return fallback(this, filePathNode || mimetypeNode);
+ }
+ }
+
+ buf = useBase64 ? buf.toString('base64')
+ : encodeURIComponent(buf);
+
+ var uri = "\"data:" + mimetype + ',' + buf + fragment + "\"";
+ return new URL(new Anonymous(uri), this.index, this.currentFileInfo);
+ });
+};
+
+},{"../logger":29,"../tree/anonymous":40,"../tree/url":74,"./function-registry":19}],17:[function(require,module,exports){
+var Keyword = require("../tree/keyword"),
+ functionRegistry = require("./function-registry");
+
+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":59,"./function-registry":19}],18:[function(require,module,exports){
+var functionRegistry = require("./function-registry");
+
+var functionCaller = function(name, context, index, currentFileInfo) {
+ this.name = name.toLowerCase();
+ this.function = functionRegistry.get(this.name);
+ this.index = index;
+ this.context = context;
+ 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":19}],19:[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];
+ }
+};
+
+},{}],20:[function(require,module,exports){
+module.exports = function(environment) {
+ var functions = {
+ functionRegistry: require("./function-registry"),
+ functionCaller: require("./function-caller")
+ };
+
+ //register functions
+ require("./default");
+ require("./color");
+ require("./color-blending");
+ require("./data-uri")(environment);
+ require("./math");
+ require("./number");
+ require("./string");
+ require("./svg")(environment);
+ require("./types");
+
+ return functions;
+};
+
+},{"./color":15,"./color-blending":14,"./data-uri":16,"./default":17,"./function-caller":18,"./function-registry":19,"./math":21,"./number":22,"./string":23,"./svg":24,"./types":25}],21:[function(require,module,exports){
+var Dimension = require("../tree/dimension"),
+ functionRegistry = require("./function-registry");
+
+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":50,"./function-registry":19}],22:[function(require,module,exports){
+var Dimension = require("../tree/dimension"),
+ Anonymous = require("../tree/anonymous"),
+ functionRegistry = require("./function-registry");
+
+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.context); }).join(this.context.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":40,"../tree/dimension":50,"./function-registry":19}],23:[function(require,module,exports){
+var Quoted = require("../tree/quoted"),
+ Anonymous = require("../tree/anonymous"),
+ JavaScript = require("../tree/javascript"),
+ functionRegistry = require("./function-registry");
+
+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":40,"../tree/javascript":57,"../tree/quoted":67,"./function-registry":19}],24:[function(require,module,exports){
+module.exports = function(environment) {
+ var Dimension = require("../tree/dimension"),
+ Color = require("../tree/color"),
+ Anonymous = require("../tree/anonymous"),
+ URL = require("../tree/url"),
+ functionRegistry = require("./function-registry");
+
+ 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(returner);
+ } catch(e) {
+ useBase64 = false;
+ }
+ }
+
+ returner = "'data:image/svg+xml" + (useBase64 ? ";base64" : "") + "," + returner + "'";
+ return new URL(new Anonymous(returner), this.index, this.currentFileInfo);
+ });
+};
+
+},{"../tree/anonymous":40,"../tree/color":44,"../tree/dimension":50,"../tree/url":74,"./function-registry":19}],25:[function(require,module,exports){
+var Keyword = require("../tree/keyword"),
+ Dimension = require("../tree/dimension"),
+ Color = require("../tree/color"),
+ Quoted = require("../tree/quoted"),
+ Anonymous = require("../tree/anonymous"),
+ URL = require("../tree/url"),
+ Operation = require("../tree/operation"),
+ functionRegistry = require("./function-registry");
+
+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":40,"../tree/color":44,"../tree/dimension":50,"../tree/keyword":59,"../tree/operation":65,"../tree/quoted":67,"../tree/url":74,"./function-registry":19}],26:[function(require,module,exports){
+var contexts = require("./contexts"),
+ Parser = require('./parser/parser');
+
+module.exports = function(environment) {
+
+ // FileInfo = {
+ // '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
+
+ var ImportManager = function(context, rootFileInfo) {
+ this.rootFilename = rootFileInfo.filename;
+ this.paths = context.paths || []; // Search paths, when importing
+ this.contents = {}; // map - filename to contents of all the files
+ this.contentsIgnoredChars = {}; // map - filename to lines at the begining of each file to ignore
+ this.mime = context.mime;
+ this.error = null;
+ this.context = context;
+ // Deprecated? Unused outside of here, could be useful.
+ this.queue = []; // Files which haven't been imported yet
+ this.files = []; // Holds the imported parse trees.
+ };
+ ImportManager.prototype.push = function (path, currentFileInfo, importOptions, callback) {
+ var importManager = this;
+ this.queue.push(path);
+
+ var fileParsedFunc = function (e, root, fullPath) {
+ importManager.queue.splice(importManager.queue.indexOf(path), 1); // Remove the path from the queue
+
+ var importedEqualsRoot = fullPath === importManager.rootFilename;
+
+ importManager.files[fullPath] = root;
+
+ if (e && !importManager.error) { importManager.error = e; }
+
+ callback(e, root, importedEqualsRoot, fullPath);
+ };
+
+ var newFileInfo = {
+ relativeUrls: this.context.relativeUrls,
+ entryPath: currentFileInfo.entryPath,
+ rootpath: currentFileInfo.rootpath,
+ rootFilename: currentFileInfo.rootFilename
+ };
+
+ var fileManager = environment.getFileManager(path, currentFileInfo.currentDirectory, this.context, environment);
+
+ if (!fileManager) {
+ fileParsedFunc({ message: "Could not find a file-manager for " + path });
+ return;
+ }
+
+ fileManager.loadFile(path, currentFileInfo.currentDirectory, this.context, environment)
+ .then(function loadFileCallback(loadedFile) {
+ var resolvedFilename = loadedFile.filename,
+ contents = loadedFile.contents;
+
+ // 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 = fileManager.getPath(resolvedFilename);
+ if(newFileInfo.relativeUrls) {
+ newFileInfo.rootpath = fileManager.join((importManager.context.rootpath || ""), fileManager.pathDiff(newFileInfo.currentDirectory, newFileInfo.entryPath));
+ if (!fileManager.isPathAbsolute(newFileInfo.rootpath) && fileManager.alwaysMakePathsAbsolute()) {
+ newFileInfo.rootpath = fileManager.join(newFileInfo.entryPath, newFileInfo.rootpath);
+ }
+ }
+ newFileInfo.filename = resolvedFilename;
+
+ var newEnv = new contexts.Parse(importManager.context);
+
+ newEnv.processImports = false;
+ importManager.contents[resolvedFilename] = contents;
+
+ if (currentFileInfo.reference || importOptions.reference) {
+ newFileInfo.reference = true;
+ }
+
+ if (importOptions.inline) {
+ fileParsedFunc(null, contents, resolvedFilename);
+ } else {
+ new Parser(newEnv, importManager, newFileInfo).parse(contents, function (e, root) {
+ fileParsedFunc(e, root, resolvedFilename);
+ });
+ }
+ },
+ function(error) {
+ fileParsedFunc(error);
+ });
+ };
+ return ImportManager;
+};
+
+},{"./contexts":8,"./parser/parser":33}],27:[function(require,module,exports){
+module.exports = function(environment, fileManagers) {
+ var SourceMapOutput, SourceMapBuilder, ParseTree, ImportManager, Environment;
+
+ var less = {
+ version: [2, 0, "0-b1"],
+ data: require('./data'),
+ tree: require('./tree'),
+ Environment: (Environment = require("./environment/environment")),
+ AbstractFileManager: require("./environment/abstract-file-manager"),
+ environment: (environment = new Environment(environment, fileManagers)),
+ visitors: require('./visitors'),
+ Parser: require('./parser/parser'),
+ functions: require('./functions')(environment),
+ contexts: require("./contexts"),
+ SourceMapOutput: (SourceMapOutput = require('./source-map-output')(environment)),
+ SourceMapBuilder: (SourceMapBuilder = require('./source-map-builder')(SourceMapOutput)),
+ ParseTree: (ParseTree = require('./parse-tree')(SourceMapBuilder)),
+ ImportManager: (ImportManager = require('./import-manager')(environment)),
+ render: require("./render")(environment, ParseTree, ImportManager),
+ LessError: require('./less-error'),
+ transformTree: require('./transform-tree'),
+ utils: require('./utils'),
+ PluginManager: require('./plugin-manager'),
+ logger: require('./logger')
+ };
+
+ return less;
+};
+
+},{"./contexts":8,"./data":10,"./environment/abstract-file-manager":12,"./environment/environment":13,"./functions":20,"./import-manager":26,"./less-error":28,"./logger":29,"./parse-tree":30,"./parser/parser":33,"./plugin-manager":34,"./render":35,"./source-map-builder":36,"./source-map-output":37,"./transform-tree":38,"./tree":56,"./utils":77,"./visitors":80}],28:[function(require,module,exports){
+var utils = require("./utils");
+
+var LessError = module.exports = function LessError(e, importManager, currentFilename) {
+
+ Error.call(this);
+
+ var filename = e.filename || currentFilename;
+
+ if (importManager && filename) {
+ var input = importManager.contents[filename],
+ loc = utils.getLocation(e.index, input),
+ line = loc.line,
+ col = loc.column,
+ callLine = e.call && utils.getLocation(e.call, input).line,
+ lines = input.split('\n');
+
+ this.type = e.type || 'Syntax';
+ this.filename = filename;
+ this.index = e.index;
+ this.line = typeof(line) === 'number' ? line + 1 : null;
+ this.callLine = callLine + 1;
+ this.callExtract = lines[callLine];
+ this.column = col;
+ this.extract = [
+ lines[line - 1],
+ lines[line],
+ lines[line + 1]
+ ];
+ }
+ this.message = e.message;
+ this.stack = e.stack;
+};
+
+LessError.prototype = Object.create(Error.prototype);
+LessError.prototype.constructor = LessError;
+
+},{"./utils":77}],29:[function(require,module,exports){
+module.exports = {
+ error: function(msg) {
+ this._fireEvent("error", msg);
+ },
+ warn: function(msg) {
+ this._fireEvent("warn", msg);
+ },
+ info: function(msg) {
+ this._fireEvent("info", msg);
+ },
+ debug: function(msg) {
+ this._fireEvent("debug", msg);
+ },
+ addListener: function(listener) {
+ this._listeners.push(listener);
+ },
+ removeListener: function(listener) {
+ for(var i = 0; i < this._listeners.length; i++) {
+ if (this._listeners[i] === listener) {
+ this._listeners.splice(i, 1);
+ return;
+ }
+ }
+ },
+ _fireEvent: function(type, msg) {
+ for(var i = 0; i < this._listeners.length; i++) {
+ var logFunction = this._listeners[i][type];
+ if (logFunction) {
+ logFunction(msg);
+ }
+ }
+ },
+ _listeners: []
+};
+
+},{}],30:[function(require,module,exports){
+var LessError = require('./less-error'),
+ transformTree = require("./transform-tree");
+
+module.exports = function(SourceMapBuilder) {
+var ParseTree = function(root, imports) {
+ this.root = root;
+ this.imports = imports;
+};
+
+ParseTree.prototype.toCSS = function(options) {
+ var evaldRoot, result = {}, sourceMapBuilder;
+ try {
+ evaldRoot = transformTree(this.root, options);
+ } catch (e) {
+ throw new LessError(e, this.imports);
+ }
+
+ try {
+ var toCSSOptions = {
+ compress: Boolean(options.compress),
+ dumpLineNumbers: options.dumpLineNumbers,
+ strictUnits: Boolean(options.strictUnits),
+ numPrecision: 8};
+
+ if (options.sourceMap) {
+ sourceMapBuilder = new SourceMapBuilder(options.sourceMap);
+ result.css = sourceMapBuilder.toCSS(evaldRoot, toCSSOptions, this.imports);
+ } else {
+ result.css = evaldRoot.toCSS(toCSSOptions);
+ }
+ } catch (e) {
+ throw new LessError(e, this.imports);
+ }
+
+ if (options.pluginManager) {
+ var postProcessors = options.pluginManager.getPostProcessors();
+ for(var i = 0; i < postProcessors.length; i++) {
+ result.css = postProcessors[i].process(result.css, { sourceMap: sourceMapBuilder, options: options, imports: this.imports });
+ }
+ }
+ if (options.sourceMap) {
+ result.map = sourceMapBuilder.getExternalSourceMap();
+ }
+ return result;
+};
+return ParseTree;
+};
+
+},{"./less-error":28,"./transform-tree":38}],31:[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;
+};
+
+},{}],32:[function(require,module,exports){
+var chunker = require('./chunker');
+
+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.start = function(str, chunkInput, failFunction) {
+ 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, failFunction);
+ } 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;
+};
+
+},{"./chunker":31}],33:[function(require,module,exports){
+var LessError = require('../less-error'),
+ tree = require("../tree"),
+ visitors = require("../visitors"),
+ getParserInput = require("./parser-input"),
+ utils = require("../utils");
+
+//
+// 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(context, imports, fileInfo) {
+ var parsers,
+ parserInput = getParserInput();
+
+ 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) {
+ throw new LessError(
+ {
+ index: parserInput.i,
+ filename: fileInfo.filename,
+ type: type || 'Syntax',
+ message: msg
+ },
+ imports
+ );
+ }
+
+ function getDebugInfo(index) {
+ var filename = fileInfo.filename;
+
+ return {
+ lineNumber: utils.getLocation(index, parserInput.getInput()).line + 1,
+ fileName: filename
+ };
+ }
+
+ //
+ // The Parser
+ //
+ return {
+
+ //
+ // 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;
+ imports.contentsIgnoredChars[fileInfo.filename] = preText.length;
+ }
+
+ str = str.replace(/\r\n/g, '\n');
+ // Remove potential UTF Byte Order Mark
+ str = preText + str.replace(/^\uFEFF/, '') + modifyVars;
+ imports.contents[fileInfo.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, context.chunkInput, function fail(msg, index) {
+ throw LessError({
+ index: index,
+ type: 'Parse',
+ message: msg,
+ filename: fileInfo.filename
+ }, imports);
+ });
+
+ root = new(tree.Ruleset)(null, this.parsers.primary());
+ root.root = true;
+ root.firstRoot = true;
+ } catch (e) {
+ return callback(new LessError(e, imports, fileInfo.filename));
+ }
+
+ // 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({
+ type: "Parse",
+ message: message,
+ index: endInfo.furthest,
+ filename: fileInfo.filename
+ }, imports);
+ }
+
+ var finish = function (e) {
+ e = error || e || imports.error;
+
+ if (e) {
+ if (!(e instanceof LessError)) {
+ e = new LessError(e, imports, fileInfo.filename);
+ }
+
+ return callback(e);
+ }
+ else {
+ return callback(null, root);
+ }
+ };
+
+ if (context.processImports !== false) {
+ new visitors.ImportVisitor(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.$re(/^;+/))) {
+ break;
+ }
+ }
+ }
+
+ return root;
+ },
+
+ // comments are collected by the main parsing mechanism and then assigned to nodes
+ // where the current structure allows it
+ comment: function () {
+ if (parserInput.commentStore.length) {
+ var comment = parserInput.commentStore.shift();
+ return new(tree.Comment)(comment.text, comment.isLineComment, comment.index, fileInfo);
+ }
+ },
+
+ //
+ // Entities are tokens which can be found inside an Expression
+ //
+ entities: {
+ //
+ // A string, which supports escaping " and '
+ //
+ // "milky way" 'he\'s the one!'
+ //
+ quoted: function () {
+ var str, index = parserInput.i;
+
+ str = parserInput.$re(/^(~)?("((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)')/);
+ if (str) {
+ return new(tree.Quoted)(str[2], str[3] || str[4], Boolean(str[1]), index, fileInfo);
+ }
+ },
+
+ //
+ // 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.$char(')')) {
+ parserInput.restore("Could not parse call arguments or missing ')'");
+ return;
+ }
+
+ parserInput.forget();
+ return new(tree.Call)(name, args, index, fileInfo);
+ },
+ arguments: function () {
+ var args = [], arg;
+
+ while (true) {
+ arg = this.assignment() || parsers.expression();
+ if (!arg) {
+ break;
+ }
+ args.push(arg);
+ if (! parserInput.$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, index = parserInput.i;
+
+ 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), index, fileInfo);
+ },
+
+ //
+ // 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.$re(/^@@?[\w-]+/))) {
+ return new(tree.Variable)(name, index, fileInfo);
+ }
+ },
+
+ // A variable entity useing the protective {} e.g. @{var}
+ variableCurly: function () {
+ var curly, index = parserInput.i;
+
+ if (parserInput.currentChar() === '@' && (curly = parserInput.$re(/^@\{([\w-]+)\}/))) {
+ return new(tree.Variable)("@" + curly[1], index, fileInfo);
+ }
+ },
+
+ //
+ // 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.$re(/^([+-]?\d*\.?\d+)(%|[a-z]+)?/i);
+ if (value) {
+ return new(tree.Dimension)(value[1], value[2]);
+ }
+ },
+
+ //
+ // A unicode descriptor, as is used in unicode-range
+ //
+ // U+0?? or U+00A1-00A9
+ //
+ unicodeDescriptor: function () {
+ var ud;
+
+ ud = parserInput.$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.$re(/^(~)?`([^`]*)`/);
+ if (js) {
+ return new(tree.JavaScript)(js[2], Boolean(js[1]), index, fileInfo);
+ }
+ }
+ },
+
+ //
+ // The variable part of a variable definition. Used in the `rule` parser
+ //
+ // @fink:
+ //
+ variable: function () {
+ var name;
+
+ if (parserInput.currentChar() === '@' && (name = parserInput.$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.$re(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/);
+ if (!e) {
+ break;
+ }
+ elem = new(tree.Element)(c, e, elemIndex, fileInfo);
+ if (elements) { elements.push(elem); } else { elements = [ elem ]; }
+ c = parserInput.$char('>');
+ }
+
+ if (elements) {
+ if (parserInput.$char('(')) {
+ args = this.args(true).args;
+ expectChar(')');
+ }
+
+ if (parsers.important()) {
+ important = true;
+ }
+
+ if (parsers.end()) {
+ parserInput.forget();
+ return new(tree.mixin.Call)(elements, args, index, fileInfo, important);
+ }
+ }
+
+ parserInput.restore();
+ },
+ args: function (isCall) {
+ var entities = parsers.entities,
+ returner = { args:null, variadic: false },
+ expressions = [], argsSemiColon = [], argsComma = [],
+ isSemiColonSeperated, expressionContainsNamed, name, nameLoop, value, arg;
+
+ parserInput.save();
+
+ while (true) {
+ if (isCall) {
+ arg = parsers.detachedRuleset() || parsers.expression();
+ } else {
+ parserInput.commentStore.length = 0;
+ if (parserInput.currentChar() === '.' && parserInput.$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.$char(')')) {
+ e = new(tree.Paren)(v);
+ parserInput.forget();
+ } else {
+ parserInput.restore("Missing closing ')'");
+ }
+ } else {
+ parserInput.forget();
+ }
+ }
+
+ if (e) { return new(tree.Element)(c, e, index, fileInfo); }
+ },
+
+ //
+ // Combinators combine elements together, in a Selector.
+ //
+ // Because our parser isn't white-space sensitive, special care
+ // has to be taken, when parsing the descendant combinator, ` `,
+ // as it's an empty space. We have to check the previous character
+ // in the input, to see if it's a ` ` character. More info on how
+ // we deal with this in *combinator.js*.
+ //
+ combinator: function () {
+ var c = parserInput.currentChar();
+
+ if (c === '/') {
+ parserInput.save();
+ var slashedCombinator = parserInput.$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.$re(/^when/))) || (e = this.element())) {
+ if (when) {
+ condition = expect(this.conditions, 'expected condition');
+ } else if (condition) {
+ error("CSS guard can only be used at the end of selector");
+ } else if (extend) {
+ if (extendList) { extendList.push(extend); } else { extendList = [ extend ]; }
+ } else {
+ if (extendList) { error("Extend can only be used at the end of selector"); }
+ c = parserInput.currentChar();
+ if (elements) { elements.push(e); } else { elements = [ e ]; }
+ e = null;
+ }
+ if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') {
+ break;
+ }
+ }
+
+ if (elements) { return new(tree.Selector)(elements, extendList, condition, index, fileInfo); }
+ if (extendList) { error("Extend must be used to extend a selector, it cannot be used on its own"); }
+ },
+ attribute: function () {
+ if (! parserInput.$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 (context.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, context.strictImports);
+ if (context.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 && (context.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, fileInfo);
+ }
+ }
+ if (!tryValueFirst && !value) {
+ value = this.value();
+ }
+
+ important = this.important();
+ }
+
+ if (value && this.end()) {
+ parserInput.forget();
+ return new (tree.Rule)(name, value, important, merge, startOfRule, fileInfo);
+ } 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, fileInfo);
+ }
+ 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.$char(')')) {
+ if (p && e) {
+ nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, null, parserInput.i, fileInfo, true)));
+ } else if (e) {
+ nodes.push(new(tree.Paren)(e));
+ } else {
+ parserInput.restore("badly formed media feature definition");
+ return null;
+ }
+ } else {
+ parserInput.restore("Missing closing ')'");
+ return null;
+ }
+ }
+ } while (e);
+
+ parserInput.forget();
+ if (nodes.length > 0) {
+ return new(tree.Expression)(nodes);
+ }
+ },
+
+ mediaFeatures: function () {
+ var entities = this.entities, features = [], e;
+ do {
+ e = this.mediaFeature();
+ if (e) {
+ features.push(e);
+ if (! parserInput.$char(',')) { break; }
+ } else {
+ e = entities.variable();
+ if (e) {
+ features.push(e);
+ if (! parserInput.$char(',')) { break; }
+ }
+ }
+ } while (e);
+
+ return features.length > 0 ? features : null;
+ },
+
+ media: function () {
+ var features, rules, media, debugInfo;
+
+ if (context.dumpLineNumbers) {
+ debugInfo = getDebugInfo(parserInput.i);
+ }
+
+ if (parserInput.$re(/^@media/)) {
+ features = this.mediaFeatures();
+
+ rules = this.block();
+ if (rules) {
+ media = new(tree.Media)(rules, features, parserInput.i, fileInfo);
+ if (context.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.$char(';'))) {
+ parserInput.forget();
+ return new(tree.Directive)(name, value, rules, index, fileInfo,
+ context.dumpLineNumbers ? getDebugInfo(index) : null);
+ }
+
+ parserInput.restore("directive options not recognised");
+ },
+
+ //
+ // A Value is a comma-delimited list of Expressions
+ //
+ // font-family: Baskerville, Georgia, serif;
+ //
+ // In a Rule, a Value represents everything after the `:`,
+ // and before the `;`.
+ //
+ value: function () {
+ var e, expressions = [];
+
+ do {
+ e = this.expression();
+ if (e) {
+ expressions.push(e);
+ if (! parserInput.$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], fileInfo);
+ }
+ return name;
+ }
+ parserInput.restore();
+ }
+ }
+ };
+};
+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;
+};
+
+module.exports = Parser;
+
+},{"../less-error":28,"../tree":56,"../utils":77,"../visitors":80,"./parser-input":32}],34:[function(require,module,exports){
+/**
+ * Plugin Manager
+ */
+var PluginManager = function(less) {
+ this.less = less;
+ this.visitors = [];
+ this.postProcessors = [];
+ this.installedPlugins = [];
+ this.fileManagers = [];
+};
+/**
+ * Adds all the plugins in the array
+ * @param {Array} plugins
+ */
+PluginManager.prototype.addPlugins = function(plugins) {
+ if (plugins) {
+ for(var i = 0;i < plugins.length; i++) {
+ this.addPlugin(plugins[i]);
+ }
+ }
+};
+/**
+ *
+ * @param plugin
+ */
+PluginManager.prototype.addPlugin = function(plugin) {
+ this.installedPlugins.push(plugin);
+ plugin.install(this.less, this);
+};
+/**
+ * Adds a visitor. The visitor object has options on itself to determine
+ * when it should run.
+ * @param visitor
+ */
+PluginManager.prototype.addVisitor = function(visitor) {
+ this.visitors.push(visitor);
+};
+/**
+ * Adds a post processor object
+ * @param {object} postProcessor
+ * @param {number} priority - guidelines 1 = before compression, 1000 = compression, 2000 = after compression
+ */
+PluginManager.prototype.addPostProcessor = function(postProcessor, priority) {
+ var indexToInsertAt;
+ for(indexToInsertAt = 0; indexToInsertAt < this.postProcessors.length; indexToInsertAt++) {
+ if (this.postProcessors[indexToInsertAt].priority >= priority) {
+ break;
+ }
+ }
+ this.postProcessors.splice(indexToInsertAt, 0, {postProcessor: postProcessor, priority: priority});
+};
+/**
+ *
+ * @param manager
+ */
+PluginManager.prototype.addFileManager = function(manager) {
+ this.fileManagers.push(manager);
+};
+/**
+ *
+ * @returns {Array}
+ * @private
+ */
+PluginManager.prototype.getPostProcessors = function() {
+ var postProcessors = [];
+ for(var i = 0; i < this.postProcessors.length; i++) {
+ postProcessors.push(this.postProcessors[i].postProcessor);
+ }
+ return postProcessors;
+};
+/**
+ *
+ * @returns {Array}
+ * @private
+ */
+PluginManager.prototype.getVisitors = function() {
+ return this.visitors;
+};
+/**
+ *
+ * @returns {Array}
+ * @private
+ */
+PluginManager.prototype.getFileManagers = function() {
+ return this.fileManagers;
+};
+module.exports = PluginManager;
+
+},{}],35:[function(require,module,exports){
+var PromiseConstructor = typeof Promise === 'undefined' ? require('promise') : Promise,
+ contexts = require("./contexts"),
+ Parser = require('./parser/parser'),
+ PluginManager = require('./plugin-manager');
+
+module.exports = function(environment, ParseTree, ImportManager) {
+ var render = function (input, options, callback) {
+ options = options || {};
+
+ if (typeof(options) === 'function') {
+ callback = options;
+ options = {};
+ }
+
+ if (callback) {
+ render.call(this, input, options)
+ .then(function(css) {
+ callback(null, css);
+ },
+ function(error) {
+ callback(error);
+ });
+ } else {
+ var context,
+ rootFileInfo,
+ pluginManager = new PluginManager(this);
+
+ pluginManager.addPlugins(options.plugins);
+ options.pluginManager = pluginManager;
+
+ context = new contexts.Parse(options);
+
+ if (options.rootFileInfo) {
+ rootFileInfo = options.rootFileInfo;
+ } else {
+ var filename = options.filename || "input";
+ var entryPath = filename.replace(/[^\/\\]*$/, "");
+ rootFileInfo = {
+ filename: filename,
+ relativeUrls: context.relativeUrls,
+ rootpath: context.rootpath || "",
+ currentDirectory: entryPath,
+ entryPath: entryPath,
+ rootFilename: filename
+ };
+ }
+
+ var imports = new ImportManager(context, rootFileInfo);
+ var parser = new Parser(context, imports, rootFileInfo);
+
+ return new PromiseConstructor(function (resolve, reject) {
+ parser.parse(input, function (e, root) {
+ if (e) { return reject(e); }
+ try {
+ var parseTree = new ParseTree(root, imports);
+ var result = parseTree.toCSS(options);
+ resolve(result);
+ }
+ catch (err) { reject( err); }
+ }, options);
+ });
+ }
+ };
+ return render;
+};
+
+},{"./contexts":8,"./parser/parser":33,"./plugin-manager":34,"promise":undefined}],36:[function(require,module,exports){
+module.exports = function (SourceMapOutput) {
+
+ var SourceMapBuilder = function (options) {
+ this.options = options;
+ };
+
+ SourceMapBuilder.prototype.toCSS = function(rootNode, options, imports) {
+ var sourceMapOutput = new SourceMapOutput(
+ {
+ contentsIgnoredCharsMap: imports.contentsIgnoredChars,
+ rootNode: rootNode,
+ contentsMap: imports.contents,
+ sourceMapFilename: this.options.sourceMapFilename,
+ sourceMapURL: this.options.sourceMapURL,
+ outputFilename: this.options.sourceMapOutputFilename,
+ sourceMapBasepath: this.options.sourceMapBasepath,
+ sourceMapRootpath: this.options.sourceMapRootpath,
+ outputSourceFiles: this.options.outputSourceFiles,
+ sourceMapGenerator: this.options.sourceMapGenerator,
+ sourceMapFileInline: this.options.sourceMapFileInline
+ });
+
+ var css = sourceMapOutput.toCSS(options);
+ this.sourceMap = sourceMapOutput.sourceMap;
+ this.sourceMapURL = sourceMapOutput.sourceMapURL;
+ if (this.options.sourceMapInputFilename) {
+ this.sourceMapInputFilename = sourceMapOutput.normalizeFilename(this.options.sourceMapInputFilename);
+ }
+ return css;
+ };
+
+ SourceMapBuilder.prototype.getExternalSourceMap = function() {
+ return this.sourceMap;
+ };
+ SourceMapBuilder.prototype.setExternalSourceMap = function(sourceMap) {
+ this.sourceMap = sourceMap;
+ };
+
+ SourceMapBuilder.prototype.isInline = function() {
+ return this.options.sourceMapFileInline;
+ };
+ SourceMapBuilder.prototype.getSourceMapURL = function() {
+ return this.sourceMapURL;
+ };
+ SourceMapBuilder.prototype.getOutputFilename = function() {
+ return this.options.sourceMapOutputFilename;
+ };
+ SourceMapBuilder.prototype.getInputFilename = function() {
+ return this.sourceMapInputFilename;
+ };
+
+ return SourceMapBuilder;
+};
+
+},{}],37:[function(require,module,exports){
+module.exports = function (environment) {
+
+ var SourceMapOutput = function (options) {
+ this._css = [];
+ this._rootNode = options.rootNode;
+ this._contentsMap = options.contentsMap;
+ this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap;
+ if (options.sourceMapFilename) {
+ this._sourceMapFilename = options.sourceMapFilename.replace(/\\/g, '/');
+ }
+ this._outputFilename = options.outputFilename;
+ this.sourceMapURL = options.sourceMapURL;
+ if (options.sourceMapBasepath) {
+ this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/');
+ }
+ if (options.sourceMapRootpath) {
+ this._sourceMapRootpath = options.sourceMapRootpath.replace(/\\/g, '/');
+ if (this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') {
+ this._sourceMapRootpath += '/';
+ }
+ } else {
+ this._sourceMapRootpath = "";
+ }
+ this._outputSourceFiles = options.outputSourceFiles;
+ this._sourceMapGeneratorConstructor = environment.getSourceMapGenerator();
+ this._sourceMapFileInline = options.sourceMapFileInline;
+
+ 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(context) {
+ 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(context, 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._sourceMapFilename;
+ }
+ this.sourceMapURL = sourceMapURL;
+
+ if (!this._sourceMapFileInline) {
+ this.sourceMap = sourceMapContent;
+ } else {
+ sourceMapURL = "data:application/json;base64," + environment.encodeBase64(sourceMapContent);
+ }
+
+ if (sourceMapURL) {
+ this._css.push("/*# sourceMappingURL=" + sourceMapURL + " */");
+ }
+ }
+
+ return this._css.join('');
+ };
+
+ return SourceMapOutput;
+};
+
+},{}],38:[function(require,module,exports){
+var contexts = require("./contexts"),
+ visitor = require("./visitors"),
+ tree = require("./tree");
+
+module.exports = function(root, options) {
+ options = options || {};
+ var evaldRoot,
+ variables = options.variables,
+ evalEnv = new contexts.Eval(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)];
+ }
+
+ var preEvalVisitors = [],
+ visitors = [
+ new visitor.JoinSelectorVisitor(),
+ new visitor.ExtendVisitor(),
+ new visitor.ToCSSVisitor({compress: Boolean(options.compress)})
+ ], i;
+
+ if (options.pluginManager) {
+ var pluginVisitors = options.pluginManager.getVisitors();
+ for(i =0; i < pluginVisitors.length; i++) {
+ var pluginVisitor = pluginVisitors[i];
+ if (pluginVisitor.isPreEvalVisitor) {
+ preEvalVisitors.push(pluginVisitor);
+ } else {
+ if (pluginVisitor.isPreVisitor) {
+ visitors.splice(0, 0, pluginVisitor);
+ } else {
+ visitors.push(pluginVisitor);
+ }
+ }
+ }
+ }
+
+ for(i = 0; i < preEvalVisitors.length; i++) {
+ preEvalVisitors[i].run(root);
+ }
+
+ evaldRoot = root.eval(evalEnv);
+
+ for(i = 0; i < visitors.length; i++) {
+ visitors[i].run(evaldRoot);
+ }
+
+ return evaldRoot;
+};
+
+},{"./contexts":8,"./tree":56,"./visitors":80}],39:[function(require,module,exports){
+var Node = require("./node");
+
+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 (context) {
+ if (this.value.eval) { return new Alpha(this.value.eval(context)); }
+ return this;
+};
+Alpha.prototype.genCSS = function (context, output) {
+ output.add("alpha(opacity=");
+
+ if (this.value.genCSS) {
+ this.value.genCSS(context, output);
+ } else {
+ output.add(this.value);
+ }
+
+ output.add(")");
+};
+
+module.exports = Alpha;
+
+},{"./node":64}],40:[function(require,module,exports){
+var Node = require("./node");
+
+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 (other) {
+ return other.toCSS && this.toCSS() === other.toCSS() ? 0 : undefined;
+};
+Anonymous.prototype.isRulesetLike = function() {
+ return this.rulesetLike;
+};
+Anonymous.prototype.genCSS = function (context, output) {
+ output.add(this.value, this.currentFileInfo, this.index, this.mapLines);
+};
+module.exports = Anonymous;
+
+},{"./node":64}],41:[function(require,module,exports){
+var Node = require("./node");
+
+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 (context) {
+ if (this.value.eval) {
+ return new Assignment(this.key, this.value.eval(context));
+ }
+ return this;
+};
+Assignment.prototype.genCSS = function (context, output) {
+ output.add(this.key + '=');
+ if (this.value.genCSS) {
+ this.value.genCSS(context, output);
+ } else {
+ output.add(this.value);
+ }
+};
+module.exports = Assignment;
+
+
+},{"./node":64}],42:[function(require,module,exports){
+var Node = require("./node");
+
+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 (context) {
+ return new Attribute(this.key.eval ? this.key.eval(context) : this.key,
+ this.op, (this.value && this.value.eval) ? this.value.eval(context) : this.value);
+};
+Attribute.prototype.genCSS = function (context, output) {
+ output.add(this.toCSS(context));
+};
+Attribute.prototype.toCSS = function (context) {
+ var value = this.key.toCSS ? this.key.toCSS(context) : this.key;
+
+ if (this.op) {
+ value += this.op;
+ value += (this.value.toCSS ? this.value.toCSS(context) : this.value);
+ }
+
+ return '[' + value + ']';
+};
+module.exports = Attribute;
+
+},{"./node":64}],43:[function(require,module,exports){
+var Node = require("./node"),
+ FunctionCaller = require("../functions/function-caller");
+//
+// 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 (context) {
+ var args = this.args.map(function (a) { return a.eval(context); }),
+ result, funcCaller = new FunctionCaller(this.name, context, this.index, 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 (context, output) {
+ output.add(this.name + "(", this.currentFileInfo, this.index);
+
+ for(var i = 0; i < this.args.length; i++) {
+ this.args[i].genCSS(context, output);
+ if (i + 1 < this.args.length) {
+ output.add(", ");
+ }
+ }
+
+ output.add(")");
+};
+module.exports = Call;
+
+},{"../functions/function-caller":18,"./node":64}],44:[function(require,module,exports){
+var Node = require("./node"),
+ colors = require("../data/colors");
+
+//
+// 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 (context, output) {
+ output.add(this.toCSS(context));
+};
+Color.prototype.toCSS = function (context, doNotCompress) {
+ var compress = context && context.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(context, 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 (context, op, other) {
+ var rgb = [];
+ var alpha = this.alpha * (1 - other.alpha) + other.alpha;
+ for (var c = 0; c < 3; c++) {
+ rgb[c] = this._operate(context, 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) {
+ return (x.rgb &&
+ x.rgb[0] === this.rgb[0] &&
+ x.rgb[1] === this.rgb[1] &&
+ x.rgb[2] === this.rgb[2] &&
+ x.alpha === this.alpha) ? 0 : undefined;
+};
+
+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":9,"./node":64}],45:[function(require,module,exports){
+var Node = require("./node");
+
+var Combinator = function (value) {
+ if (value === ' ') {
+ this.value = ' ';
+ this.emptyOrWhitespace = true;
+ } else {
+ this.value = value ? value.trim() : "";
+ this.emptyOrWhitespace = this.value === "";
+ }
+};
+Combinator.prototype = new Node();
+Combinator.prototype.type = "Combinator";
+var _noSpaceCombinators = {
+ '': true,
+ ' ': true,
+ '|': true
+};
+Combinator.prototype.genCSS = function (context, output) {
+ var spaceOrEmpty = (context.compress || _noSpaceCombinators[this.value]) ? '' : ' ';
+ output.add(spaceOrEmpty + this.value + spaceOrEmpty);
+};
+module.exports = Combinator;
+
+},{"./node":64}],46:[function(require,module,exports){
+var Node = require("./node"),
+ getDebugInfo = require("./debug-info");
+
+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 (context, output) {
+ if (this.debugInfo) {
+ output.add(getDebugInfo(context, this), this.currentFileInfo, this.index);
+ }
+ output.add(this.value);
+};
+Comment.prototype.isSilent = function(context) {
+ var isReference = (this.currentFileInfo && this.currentFileInfo.reference && !this.isReferenced),
+ isCompressed = context.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":48,"./node":64}],47:[function(require,module,exports){
+var Node = require("./node");
+
+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 (context) {
+ var result = (function (op, a, b) {
+ switch (op) {
+ case 'and': return a && b;
+ case 'or': return a || b;
+ default:
+ switch (Node.compare(a, b)) {
+ case -1: return op === '<' || op === '=<' || op === '<=';
+ case 0: return op === '=' || op === '>=' || op === '=<' || op === '<=';
+ case 1: return op === '>' || op === '>=';
+ default: return false;
+ }
+ }
+ }) (this.op, this.lvalue.eval(context), this.rvalue.eval(context));
+
+ return this.negate ? !result : result;
+};
+module.exports = Condition;
+
+},{"./node":64}],48:[function(require,module,exports){
+var debugInfo = function(context, ctx, lineSeperator) {
+ var result="";
+ if (context.dumpLineNumbers && !context.compress) {
+ switch(context.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;
+
+},{}],49:[function(require,module,exports){
+var Node = require("./node"),
+ contexts = require("../contexts");
+
+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 (context) {
+ var frames = this.frames || context.frames.slice(0);
+ return new DetachedRuleset(this.ruleset, frames);
+};
+DetachedRuleset.prototype.callEval = function (context) {
+ return this.ruleset.eval(this.frames ? new contexts.Eval(context, this.frames.concat(context.frames)) : context);
+};
+module.exports = DetachedRuleset;
+
+},{"../contexts":8,"./node":64}],50:[function(require,module,exports){
+var Node = require("./node"),
+ unitConversions = require("../data/unit-conversions"),
+ Unit = require("./unit"),
+ Color = require("./color");
+
+//
+// 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 (context) {
+ return this;
+};
+Dimension.prototype.toColor = function () {
+ return new Color([this.value, this.value, this.value]);
+};
+Dimension.prototype.genCSS = function (context, output) {
+ if ((context && context.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(context, 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 (context && context.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(context, 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 (context, op, other) {
+ /*jshint noempty:false */
+ var value = this._operate(context, 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(context.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(context, 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) {
+ var a, b;
+
+ if (!(other instanceof Dimension)) {
+ return undefined;
+ }
+
+ 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 undefined;
+ }
+ }
+
+ return Node.numericCompare(a.value, b.value);
+};
+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":11,"./color":44,"./node":64,"./unit":73}],51:[function(require,module,exports){
+var Node = require("./node"),
+ Ruleset = require("./ruleset");
+
+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) {
+ this.rules = visitor.visit(rules);
+ }
+ if (value) {
+ this.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 (context, output) {
+ var value = this.value, rules = this.rules;
+ output.add(this.name, this.currentFileInfo, this.index);
+ if (value) {
+ output.add(' ');
+ value.genCSS(context, output);
+ }
+ if (rules) {
+ this.outputRuleset(context, output, [rules]);
+ } else {
+ output.add(';');
+ }
+};
+Directive.prototype.eval = function (context) {
+ var value = this.value, rules = this.rules;
+ if (value) {
+ value = value.eval(context);
+ }
+ if (rules) {
+ rules = rules.eval(context);
+ 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 (context, output, rules) {
+ var ruleCnt = rules.length, i;
+ context.tabLevel = (context.tabLevel | 0) + 1;
+
+ // Compressed
+ if (context.compress) {
+ output.add('{');
+ for (i = 0; i < ruleCnt; i++) {
+ rules[i].genCSS(context, output);
+ }
+ output.add('}');
+ context.tabLevel--;
+ return;
+ }
+
+ // Non-compressed
+ var tabSetStr = '\n' + Array(context.tabLevel).join(" "), tabRuleStr = tabSetStr + " ";
+ if (!ruleCnt) {
+ output.add(" {" + tabSetStr + '}');
+ } else {
+ output.add(" {" + tabRuleStr);
+ rules[0].genCSS(context, output);
+ for (i = 1; i < ruleCnt; i++) {
+ output.add(tabRuleStr);
+ rules[i].genCSS(context, output);
+ }
+ output.add(tabSetStr + '}');
+ }
+
+ context.tabLevel--;
+};
+module.exports = Directive;
+
+},{"./node":64,"./ruleset":70}],52:[function(require,module,exports){
+var Node = require("./node"),
+ Paren = require("./paren"),
+ Combinator = require("./combinator");
+
+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 (context) {
+ return new Element(this.combinator,
+ this.value.eval ? this.value.eval(context) : this.value,
+ this.index,
+ this.currentFileInfo);
+};
+Element.prototype.genCSS = function (context, output) {
+ output.add(this.toCSS(context), this.currentFileInfo, this.index);
+};
+Element.prototype.toCSS = function (context) {
+ context = context || {};
+ var value = this.value, firstSelector = context.firstSelector;
+ if (value instanceof Paren) {
+ // selector in parens should not be affected by outer selector
+ // flags (breaks only interpolated selectors - see #1973)
+ context.firstSelector = true;
+ }
+ value = value.toCSS ? value.toCSS(context) : value;
+ context.firstSelector = firstSelector;
+ if (value === '' && this.combinator.value.charAt(0) === '&') {
+ return '';
+ } else {
+ return this.combinator.toCSS(context) + value;
+ }
+};
+module.exports = Element;
+
+},{"./combinator":45,"./node":64,"./paren":66}],53:[function(require,module,exports){
+var Node = require("./node"),
+ Paren = require("./paren"),
+ Comment = require("./comment");
+
+var Expression = function (value) {
+ this.value = value;
+ if (!value) {
+ throw new Error("Expression requires a array parameter");
+ }
+};
+Expression.prototype = new Node();
+Expression.prototype.type = "Expression";
+Expression.prototype.accept = function (visitor) {
+ this.value = visitor.visitArray(this.value);
+};
+Expression.prototype.eval = function (context) {
+ var returnValue,
+ inParenthesis = this.parens && !this.parensInOp,
+ doubleParen = false;
+ if (inParenthesis) {
+ context.inParenthesis();
+ }
+ if (this.value.length > 1) {
+ returnValue = new Expression(this.value.map(function (e) {
+ return e.eval(context);
+ }));
+ } else if (this.value.length === 1) {
+ if (this.value[0].parens && !this.value[0].parensInOp) {
+ doubleParen = true;
+ }
+ returnValue = this.value[0].eval(context);
+ } else {
+ returnValue = this;
+ }
+ if (inParenthesis) {
+ context.outOfParenthesis();
+ }
+ if (this.parens && this.parensInOp && !(context.isMathOn()) && !doubleParen) {
+ returnValue = new Paren(returnValue);
+ }
+ return returnValue;
+};
+Expression.prototype.genCSS = function (context, output) {
+ for(var i = 0; i < this.value.length; i++) {
+ this.value[i].genCSS(context, 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":46,"./node":64,"./paren":66}],54:[function(require,module,exports){
+var Node = require("./node");
+
+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 (context) {
+ return new Extend(this.selector.eval(context), this.option, this.index);
+};
+Extend.prototype.clone = function (context) {
+ 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":64}],55:[function(require,module,exports){
+var Node = require("./node"),
+ Media = require("./media"),
+ URL = require("./url"),
+ Quoted = require("./quoted"),
+ Ruleset = require("./ruleset"),
+ Anonymous = require("./anonymous");
+
+//
+// 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([\?;].*)?$/.test(pathValue)) {
+ this.css = true;
+ }
+ }
+};
+
+//
+// The actual import node doesn't return anything, when converted to CSS.
+// The reason is that it's used at the evaluation stage, so that the rules
+// it imports can be treated like any other rules.
+//
+// In `eval`, we make sure all Import nodes get evaluated, recursively, so
+// we end up with a flat structure, which can easily be imported in the parent
+// ruleset.
+//
+Import.prototype = new Node();
+Import.prototype.type = "Import";
+Import.prototype.accept = function (visitor) {
+ if (this.features) {
+ this.features = visitor.visit(this.features);
+ }
+ this.path = visitor.visit(this.path);
+ if (!this.options.inline && this.root) {
+ this.root = visitor.visit(this.root);
+ }
+};
+Import.prototype.genCSS = function (context, output) {
+ if (this.css) {
+ output.add("@import ", this.currentFileInfo, this.index);
+ this.path.genCSS(context, output);
+ if (this.features) {
+ output.add(" ");
+ this.features.genCSS(context, output);
+ }
+ output.add(';');
+ }
+};
+Import.prototype.getPath = function () {
+ if (this.path instanceof Quoted) {
+ var path = this.path.value;
+ return (this.css !== undefined || /(\.[a-z]*$)|([\?;].*)$/.test(path)) ? path : path + '.less';
+ } else if (this.path instanceof URL) {
+ return this.path.value.value;
+ }
+ return null;
+};
+Import.prototype.evalForImport = function (context) {
+ var path = this.path;
+ if (path instanceof URL) {
+ path = path.value;
+ }
+ return new Import(path.eval(context), this.features, this.options, this.index, this.currentFileInfo);
+};
+Import.prototype.evalPath = function (context) {
+ var path = this.path.eval(context);
+ 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 && context.isPathRelative(pathValue)) {
+ path.value = rootpath +pathValue;
+ }
+ }
+ path.value = context.normalizePath(path.value);
+ }
+
+ return path;
+};
+Import.prototype.eval = function (context) {
+ var ruleset, features = this.features && this.features.eval(context);
+
+ if (this.skip) {
+ if (typeof this.skip === "function") {
+ this.skip = this.skip();
+ }
+ if (this.skip) {
+ return [];
+ }
+ }
+
+ if (this.options.inline) {
+ 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(context), 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(context);
+
+ return this.features ? new Media(ruleset.rules, this.features.value) : ruleset.rules;
+ }
+};
+module.exports = Import;
+
+},{"./anonymous":40,"./media":60,"./node":64,"./quoted":67,"./ruleset":70,"./url":74}],56:[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":39,"./anonymous":40,"./assignment":41,"./attribute":42,"./call":43,"./color":44,"./combinator":45,"./comment":46,"./condition":47,"./detached-ruleset":49,"./dimension":50,"./directive":51,"./element":52,"./expression":53,"./extend":54,"./import":55,"./javascript":57,"./keyword":59,"./media":60,"./mixin-call":61,"./mixin-definition":62,"./negative":63,"./operation":65,"./paren":66,"./quoted":67,"./rule":68,"./ruleset":70,"./ruleset-call":69,"./selector":71,"./unicode-descript [...]
+var JsEvalNode = require("./js-eval-node"),
+ Dimension = require("./dimension"),
+ Quoted = require("./quoted"),
+ Anonymous = require("./anonymous");
+
+var JavaScript = function (string, escaped, index, currentFileInfo) {
+ this.escaped = escaped;
+ this.expression = string;
+ this.index = index;
+ this.currentFileInfo = currentFileInfo;
+};
+JavaScript.prototype = new JsEvalNode();
+JavaScript.prototype.type = "JavaScript";
+JavaScript.prototype.eval = function(context) {
+ var result = this.evaluateJavaScript(this.expression, context);
+
+ 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":40,"./dimension":50,"./js-eval-node":58,"./quoted":67}],58:[function(require,module,exports){
+var Node = require("./node"),
+ Variable = require("./variable");
+
+var JsEvalNode = function() {
+};
+JsEvalNode.prototype = new Node();
+
+JsEvalNode.prototype.evaluateJavaScript = function (expression, context) {
+ var result,
+ that = this,
+ evalContext = {};
+
+ if (context.javascriptEnabled !== undefined && !context.javascriptEnabled) {
+ throw { message: "You are using JavaScript, which has been disabled.",
+ filename: this.currentFileInfo.filename,
+ index: this.index };
+ }
+
+ expression = expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
+ return that.jsify(new Variable('@' + name, that.index, that.currentFileInfo).eval(context));
+ });
+
+ try {
+ expression = new Function('return (' + expression + ')');
+ } catch (e) {
+ throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`" ,
+ filename: this.currentFileInfo.filename,
+ index: this.index };
+ }
+
+ var variables = context.frames[0].variables();
+ for (var k in variables) {
+ if (variables.hasOwnProperty(k)) {
+ /*jshint loopfunc:true */
+ evalContext[k.slice(1)] = {
+ value: variables[k].value,
+ toJS: function () {
+ return this.value.eval(context).toCSS();
+ }
+ };
+ }
+ }
+
+ try {
+ result = expression.call(evalContext);
+ } catch (e) {
+ throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message.replace(/["]/g, "'") + "'" ,
+ filename: this.currentFileInfo.filename,
+ 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":64,"./variable":76}],59:[function(require,module,exports){
+var Node = require("./node");
+
+var Keyword = function (value) { this.value = value; };
+Keyword.prototype = new Node();
+Keyword.prototype.type = "Keyword";
+Keyword.prototype.genCSS = function (context, output) {
+ if (this.value === '%') { throw { type: "Syntax", message: "Invalid % without number" }; }
+ output.add(this.value);
+};
+
+Keyword.True = new Keyword('true');
+Keyword.False = new Keyword('false');
+
+module.exports = Keyword;
+
+},{"./node":64}],60:[function(require,module,exports){
+var Ruleset = require("./ruleset"),
+ Value = require("./value"),
+ Element = require("./element"),
+ Selector = require("./selector"),
+ Anonymous = require("./anonymous"),
+ Expression = require("./expression"),
+ Directive = require("./directive");
+
+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 (context, output) {
+ output.add('@media ', this.currentFileInfo, this.index);
+ this.features.genCSS(context, output);
+ this.outputRuleset(context, output, this.rules);
+};
+Media.prototype.eval = function (context) {
+ if (!context.mediaBlocks) {
+ context.mediaBlocks = [];
+ context.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 (!context.strictMath) {
+ strictMathBypass = true;
+ context.strictMath = true;
+ }
+ try {
+ media.features = this.features.eval(context);
+ }
+ finally {
+ if (strictMathBypass) {
+ context.strictMath = false;
+ }
+ }
+
+ context.mediaPath.push(media);
+ context.mediaBlocks.push(media);
+
+ context.frames.unshift(this.rules[0]);
+ media.rules = [this.rules[0].eval(context)];
+ context.frames.shift();
+
+ context.mediaPath.pop();
+
+ return context.mediaPath.length === 0 ? media.evalTop(context) :
+ media.evalNested(context);
+};
+//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 (context) {
+ var result = this;
+
+ // Render all dependent Media blocks.
+ if (context.mediaBlocks.length > 1) {
+ var selectors = this.emptySelectors();
+ result = new Ruleset(selectors, context.mediaBlocks);
+ result.multiMedia = true;
+ }
+
+ delete context.mediaBlocks;
+ delete context.mediaPath;
+
+ return result;
+};
+Media.prototype.evalNested = function (context) {
+ var i, value,
+ path = context.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":40,"./directive":51,"./element":52,"./expression":53,"./ruleset":70,"./selector":71,"./value":75}],61:[function(require,module,exports){
+var Node = require("./node"),
+ Selector = require("./selector"),
+ MixinDefinition = require("./mixin-definition"),
+ defaultFunc = require("../functions/default");
+
+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 (context) {
+ var mixins, mixin, mixinPath, args, rules = [], match = false, i, m, f, isRecursive, isOneFound, rule,
+ candidates = [], candidate, conditionResult = [], defaultResult, defFalseEitherCase=-1,
+ defNone = 0, defTrue = 1, defFalse = 2, count, originalRuleset, noArgumentsFilter;
+
+ function calcDefGroup(mixin, mixinPath) {
+ var p, namespace;
+
+ for (f = 0; f < 2; f++) {
+ conditionResult[f] = true;
+ defaultFunc.value(f);
+ for(p = 0; p < mixinPath.length && conditionResult[f]; p++) {
+ namespace = mixinPath[p];
+ if (namespace.matchCondition) {
+ conditionResult[f] = conditionResult[f] && namespace.matchCondition(null, context);
+ }
+ }
+ if (mixin.matchCondition) {
+ conditionResult[f] = conditionResult[f] && mixin.matchCondition(args, context);
+ }
+ }
+ if (conditionResult[0] || conditionResult[1]) {
+ if (conditionResult[0] != conditionResult[1]) {
+ return conditionResult[1] ?
+ defTrue : defFalse;
+ }
+
+ return defNone;
+ }
+ return defFalseEitherCase;
+ }
+
+ args = this.arguments && this.arguments.map(function (a) {
+ return { name: a.name, value: a.value.eval(context) };
+ });
+
+ noArgumentsFilter = function(rule) {return rule.matchArgs(null, context);};
+
+ for (i = 0; i < context.frames.length; i++) {
+ if ((mixins = context.frames[i].find(this.selector, null, noArgumentsFilter)).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].rule;
+ mixinPath = mixins[m].path;
+ isRecursive = false;
+ for(f = 0; f < context.frames.length; f++) {
+ if ((!(mixin instanceof MixinDefinition)) && mixin === (context.frames[f].originalRuleset || context.frames[f])) {
+ isRecursive = true;
+ break;
+ }
+ }
+ if (isRecursive) {
+ continue;
+ }
+
+ if (mixin.matchArgs(args, context)) {
+ candidate = {mixin: mixin, group: calcDefGroup(mixin, mixinPath)};
+
+ if (candidate.group!==defFalseEitherCase) {
+ 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(context, 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":17,"./mixin-definition":62,"./node":64,"./selector":71}],62:[function(require,module,exports){
+var Selector = require("./selector"),
+ Element = require("./element"),
+ Ruleset = require("./ruleset"),
+ Rule = require("./rule"),
+ Expression = require("./expression"),
+ contexts = require("../contexts");
+
+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 (context, 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.Eval(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(context);
+ frame.prependRule(new Rule(name, arg.value.eval(context)));
+ 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(context));
+ }
+ frame.prependRule(new Rule(name, new Expression(varargs).eval(context)));
+ } else {
+ val = arg && arg.value;
+ if (val) {
+ val = val.eval(context);
+ } 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(context);
+ }
+ }
+ argIndex++;
+ }
+
+ return frame;
+};
+Definition.prototype.eval = function (context) {
+ return new Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || context.frames.slice(0));
+};
+Definition.prototype.evalCall = function (context, args, important) {
+ var _arguments = [],
+ mixinFrames = this.frames ? this.frames.concat(context.frames) : context.frames,
+ frame = this.evalParams(context, new contexts.Eval(context, mixinFrames), args, _arguments),
+ rules, ruleset;
+
+ frame.prependRule(new Rule('@arguments', new Expression(_arguments).eval(context)));
+
+ rules = this.rules.slice(0);
+
+ ruleset = new Ruleset(null, rules);
+ ruleset.originalRuleset = this;
+ ruleset = ruleset.eval(new contexts.Eval(context, [this, frame].concat(mixinFrames)));
+ if (important) {
+ ruleset = this.makeImportant.apply(ruleset);
+ }
+ return ruleset;
+};
+Definition.prototype.matchCondition = function (args, context) {
+ if (this.condition && !this.condition.eval(
+ new contexts.Eval(context,
+ [this.evalParams(context, new contexts.Eval(context, this.frames ? this.frames.concat(context.frames) : context.frames), args, [])] // the parameter variables
+ .concat(this.frames) // the parent namespace/mixin frames
+ .concat(context.frames)))) { // the current environment frames
+ return false;
+ }
+ return true;
+};
+Definition.prototype.matchArgs = function (args, context) {
+ 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(context).toCSS() != this.params[i].value.eval(context).toCSS()) {
+ return false;
+ }
+ }
+ }
+ return true;
+};
+module.exports = Definition;
+
+},{"../contexts":8,"./element":52,"./expression":53,"./rule":68,"./ruleset":70,"./selector":71}],63:[function(require,module,exports){
+var Node = require("./node"),
+ Operation = require("./operation"),
+ Dimension = require("./dimension");
+
+var Negative = function (node) {
+ this.value = node;
+};
+Negative.prototype = new Node();
+Negative.prototype.type = "Negative";
+Negative.prototype.genCSS = function (context, output) {
+ output.add('-');
+ this.value.genCSS(context, output);
+};
+Negative.prototype.eval = function (context) {
+ if (context.isMathOn()) {
+ return (new Operation('*', [new Dimension(-1), this.value])).eval(context);
+ }
+ return new Negative(this.value.eval(context));
+};
+module.exports = Negative;
+
+},{"./dimension":50,"./node":64,"./operation":65}],64:[function(require,module,exports){
+var Node = function() {
+};
+Node.prototype.toCSS = function (context) {
+ var strs = [];
+ this.genCSS(context, {
+ add: function(chunk, fileInfo, index) {
+ strs.push(chunk);
+ },
+ isEmpty: function () {
+ return strs.length === 0;
+ }
+ });
+ return strs.join('');
+};
+Node.prototype.genCSS = function (context, 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 (context, 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(context, value) {
+ var precision = context && context.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));
+};
+Node.compare = function (a, b) {
+ /* returns:
+ -1: a < b
+ 0: a = b
+ 1: a > b
+ and *any* other value for a != b (e.g. undefined, NaN, -2 etc.) */
+
+ if ((a.compare) &&
+ // for "symmetric results" force toCSS-based comparison
+ // of Quoted or Anonymous if either value is one of those
+ !(b.type === "Quoted" || b.type === "Anonymous")) {
+ return a.compare(b);
+ } else if (b.compare) {
+ return -b.compare(a);
+ } else if (a.type !== b.type) {
+ return undefined;
+ }
+
+ a = a.value;
+ b = b.value;
+ if (!Array.isArray(a)) {
+ return a === b ? 0 : undefined;
+ }
+ if (a.length !== b.length) {
+ return undefined;
+ }
+ for (var i = 0; i < a.length; i++) {
+ if (Node.compare(a[i], b[i]) !== 0) {
+ return undefined;
+ }
+ }
+ return 0;
+};
+
+Node.numericCompare = function (a, b) {
+ return a < b ? -1
+ : a === b ? 0
+ : a > b ? 1 : undefined;
+};
+module.exports = Node;
+
+},{}],65:[function(require,module,exports){
+var Node = require("./node"),
+ Color = require("./color"),
+ Dimension = require("./dimension");
+
+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 (context) {
+ var a = this.operands[0].eval(context),
+ b = this.operands[1].eval(context);
+
+ if (context.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(context, this.op, b);
+ } else {
+ return new Operation(this.op, [a, b], this.isSpaced);
+ }
+};
+Operation.prototype.genCSS = function (context, output) {
+ this.operands[0].genCSS(context, output);
+ if (this.isSpaced) {
+ output.add(" ");
+ }
+ output.add(this.op);
+ if (this.isSpaced) {
+ output.add(" ");
+ }
+ this.operands[1].genCSS(context, output);
+};
+
+module.exports = Operation;
+
+},{"./color":44,"./dimension":50,"./node":64}],66:[function(require,module,exports){
+var Node = require("./node");
+
+var Paren = function (node) {
+ this.value = node;
+};
+Paren.prototype = new Node();
+Paren.prototype.type = "Paren";
+Paren.prototype.genCSS = function (context, output) {
+ output.add('(');
+ this.value.genCSS(context, output);
+ output.add(')');
+};
+Paren.prototype.eval = function (context) {
+ return new Paren(this.value.eval(context));
+};
+module.exports = Paren;
+
+},{"./node":64}],67:[function(require,module,exports){
+var Node = require("./node"),
+ JsEvalNode = require("./js-eval-node"),
+ Variable = require("./variable");
+
+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 (context, 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 (context) {
+ var that = this, value = this.value;
+ var javascriptReplacement = function (_, exp) {
+ return String(that.evaluateJavaScript(exp, context));
+ };
+ var interpolationReplacement = function (_, name) {
+ var v = new Variable('@' + name, that.index, that.currentFileInfo).eval(context, true);
+ return (v instanceof Quoted) ? v.value : v.toCSS();
+ };
+ function iterativeReplace(value, regexp, replacementFnc) {
+ var evaluatedValue = value;
+ do {
+ value = evaluatedValue;
+ evaluatedValue = value.replace(regexp, replacementFnc);
+ } while (value!==evaluatedValue);
+ return evaluatedValue;
+ }
+ value = iterativeReplace(value, /`([^`]+)`/g, javascriptReplacement);
+ value = iterativeReplace(value, /@\{([\w-]+)\}/g, interpolationReplacement);
+ return new Quoted(this.quote + value + this.quote, value, this.escaped, this.index, this.currentFileInfo);
+};
+Quoted.prototype.compare = function (other) {
+ // when comparing quoted strings allow the quote to differ
+ if (other.type === "Quoted" && !this.escaped && !other.escaped) {
+ return Node.numericCompare(this.value, other.value);
+ } else {
+ return other.toCSS && this.toCSS() === other.toCSS() ? 0 : undefined;
+ }
+};
+module.exports = Quoted;
+
+},{"./js-eval-node":58,"./node":64,"./variable":76}],68:[function(require,module,exports){
+var Node = require("./node"),
+ Value = require("./value"),
+ Keyword = require("./keyword");
+
+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(context, name) {
+ var value = "", i, n = name.length,
+ output = {add: function (s) {value += s;}};
+ for (i = 0; i < n; i++) {
+ name[i].eval(context).genCSS(context, output);
+ }
+ return value;
+}
+
+Rule.prototype = new Node();
+Rule.prototype.type = "Rule";
+Rule.prototype.genCSS = function (context, output) {
+ output.add(this.name + (context.compress ? ':' : ': '), this.currentFileInfo, this.index);
+ try {
+ this.value.genCSS(context, output);
+ }
+ catch(e) {
+ e.index = this.index;
+ e.filename = this.currentFileInfo.filename;
+ throw e;
+ }
+ output.add(this.important + ((this.inline || (context.lastRule && context.compress)) ? "" : ";"), this.currentFileInfo, this.index);
+};
+Rule.prototype.eval = function (context) {
+ 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(context, name);
+ variable = false; // never treat expanded interpolation as new variable name
+ }
+ if (name === "font" && !context.strictMath) {
+ strictMathBypass = true;
+ context.strictMath = true;
+ }
+ try {
+ evaldValue = this.value.eval(context);
+
+ 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) {
+ context.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":59,"./node":64,"./value":75}],69:[function(require,module,exports){
+var Node = require("./node"),
+ Variable = require("./variable");
+
+var RulesetCall = function (variable) {
+ this.variable = variable;
+};
+RulesetCall.prototype = new Node();
+RulesetCall.prototype.type = "RulesetCall";
+RulesetCall.prototype.eval = function (context) {
+ var detachedRuleset = new Variable(this.variable).eval(context);
+ return detachedRuleset.callEval(context);
+};
+module.exports = RulesetCall;
+
+},{"./node":64,"./variable":76}],70:[function(require,module,exports){
+var Node = require("./node"),
+ Rule = require("./rule"),
+ Selector = require("./selector"),
+ Element = require("./element"),
+ contexts = require("../contexts"),
+ defaultFunc = require("../functions/default"),
+ getDebugInfo = require("./debug-info");
+
+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 (context) {
+ 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(context);
+ 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 ctxFrames = context.frames;
+ ctxFrames.unshift(ruleset);
+
+ // currrent selectors
+ var ctxSelectors = context.selectors;
+ if (!ctxSelectors) {
+ context.selectors = ctxSelectors = [];
+ }
+ ctxSelectors.unshift(this.selectors);
+
+ // Evaluate imports
+ if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) {
+ ruleset.evalImports(context);
+ }
+
+ // 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(context);
+ }
+ }
+
+ var mediaBlockCount = (context.mediaBlocks && context.mediaBlocks.length) || 0;
+
+ // Evaluate mixin calls.
+ for (i = 0; i < rsRuleCnt; i++) {
+ if (rsRules[i].type === "MixinCall") {
+ /*jshint loopfunc:true */
+ rules = rsRules[i].eval(context).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(context).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(context) : 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
+ ctxFrames.shift();
+ ctxSelectors.shift();
+
+ if (context.mediaBlocks) {
+ for (i = mediaBlockCount; i < context.mediaBlocks.length; i++) {
+ context.mediaBlocks[i].bubbleSelectors(selectors);
+ }
+ }
+
+ return ruleset;
+};
+Ruleset.prototype.evalImports = function(context) {
+ 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(context);
+ 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, context) {
+ var lastSelector = this.selectors[this.selectors.length-1];
+ if (!lastSelector.evaldCondition) {
+ return false;
+ }
+ if (lastSelector.condition &&
+ !lastSelector.condition.eval(
+ new contexts.Eval(context,
+ context.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, filter) {
+ self = self || this;
+ var rules = [], match, foundMixins,
+ 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) {
+ if (!filter || filter(rule)) {
+ foundMixins = rule.find(new Selector(selector.elements.slice(match)), self, filter);
+ for (var i = 0; i < foundMixins.length; ++i) {
+ foundMixins[i].path.push(rule);
+ }
+ Array.prototype.push.apply(rules, foundMixins);
+ }
+ } else {
+ rules.push({ rule: rule, path: []});
+ }
+ break;
+ }
+ }
+ }
+ });
+ this._lookups[key] = rules;
+ return rules;
+};
+Ruleset.prototype.genCSS = function (context, output) {
+ var i, j,
+ charsetRuleNodes = [],
+ ruleNodes = [],
+ rulesetNodes = [],
+ rulesetNodeCnt,
+ debugInfo, // Line number debugging
+ rule,
+ path;
+
+ context.tabLevel = (context.tabLevel || 0);
+
+ if (!this.root) {
+ context.tabLevel++;
+ }
+
+ var tabRuleStr = context.compress ? '' : Array(context.tabLevel + 1).join(" "),
+ tabSetStr = context.compress ? '' : Array(context.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(context, this, tabSetStr);
+
+ if (debugInfo) {
+ output.add(debugInfo);
+ output.add(tabSetStr);
+ }
+
+ var paths = this.paths, pathCnt = paths.length,
+ pathSubCnt;
+
+ sep = context.compress ? ',' : (',\n' + tabSetStr);
+
+ for (i = 0; i < pathCnt; i++) {
+ path = paths[i];
+ if (!(pathSubCnt = path.length)) { continue; }
+ if (i > 0) { output.add(sep); }
+
+ context.firstSelector = true;
+ path[0].genCSS(context, output);
+
+ context.firstSelector = false;
+ for (j = 1; j < pathSubCnt; j++) {
+ path[j].genCSS(context, output);
+ }
+ }
+
+ output.add((context.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)) {
+ context.lastRule = true;
+ }
+
+ if (rule.genCSS) {
+ rule.genCSS(context, output);
+ } else if (rule.value) {
+ output.add(rule.value.toString());
+ }
+
+ if (!context.lastRule) {
+ output.add(context.compress ? '' : ('\n' + tabRuleStr));
+ } else {
+ context.lastRule = false;
+ }
+ }
+
+ if (!this.root) {
+ output.add((context.compress ? '}' : '\n' + tabSetStr + '}'));
+ context.tabLevel--;
+ }
+
+ sep = (context.compress ? "" : "\n") + (this.root ? tabRuleStr : tabSetStr);
+ rulesetNodeCnt = rulesetNodes.length;
+ if (rulesetNodeCnt) {
+ if (ruleNodes.length && sep) { output.add(sep); }
+ rulesetNodes[0].genCSS(context, output);
+ for (i = 1; i < rulesetNodeCnt; i++) {
+ if (sep) { output.add(sep); }
+ rulesetNodes[i].genCSS(context, output);
+ }
+ }
+
+ if (!output.isEmpty() && !context.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;
+
+ // /deep/ is a combinator that is valid without anything in front of it
+ // so if the & does not have a combinator that is "" or " " then
+ // and there is a combinator on the parent, then grab that.
+ // this also allows + a { & .b { .a & { ... though not sure why you would want to do that
+ var combinator = el.combinator,
+ parentEl = parentSel[0].elements[0];
+ if (combinator.emptyOrWhitespace && !parentEl.combinator.emptyOrWhitespace) {
+ combinator = parentEl.combinator;
+ }
+ // join the elements so far with the first part of the parent
+ newJoinedSelector.elements.push(new Element(combinator, parentEl.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":8,"../functions/default":17,"./debug-info":48,"./element":52,"./node":64,"./rule":68,"./selector":71}],71:[function(require,module,exports){
+var Node = require("./node");
+
+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() {
+ if (this._elements)
+ return;
+
+ var elements = this.elements.map( function(v) {
+ return v.combinator.value + (v.value.value || v.value);
+ }).join("").match(/[,&#\*\.\w-]([\w-]|(\\.))*/g);
+
+ if (elements) {
+ if (elements[0] === "&") {
+ elements.shift();
+ }
+ } else {
+ elements = [];
+ }
+
+ this._elements = 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 (context) {
+ var evaldCondition = this.condition && this.condition.eval(context),
+ elements = this.elements, extendList = this.extendList;
+
+ elements = elements && elements.map(function (e) { return e.eval(context); });
+ extendList = extendList && extendList.map(function(extend) { return extend.eval(context); });
+
+ return this.createDerived(elements, extendList, evaldCondition);
+};
+Selector.prototype.genCSS = function (context, output) {
+ var i, element;
+ if ((!context || !context.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(context, 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":64}],72:[function(require,module,exports){
+var Node = require("./node");
+
+var UnicodeDescriptor = function (value) {
+ this.value = value;
+};
+UnicodeDescriptor.prototype = new Node();
+UnicodeDescriptor.prototype.type = "UnicodeDescriptor";
+
+module.exports = UnicodeDescriptor;
+
+},{"./node":64}],73:[function(require,module,exports){
+var Node = require("./node"),
+ unitConversions = require("../data/unit-conversions");
+
+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 (context, output) {
+ if (this.numerator.length >= 1) {
+ output.add(this.numerator[0]);
+ } else
+ if (this.denominator.length >= 1) {
+ output.add(this.denominator[0]);
+ } else
+ if ((!context || !context.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 : undefined;
+};
+Unit.prototype.is = function (unitString) {
+ return this.toString().toUpperCase() === unitString.toUpperCase();
+};
+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":11,"./node":64}],74:[function(require,module,exports){
+var Node = require("./node");
+
+var URL = function (val, index, currentFileInfo, isEvald) {
+ this.value = val;
+ this.currentFileInfo = currentFileInfo;
+ this.index = index;
+ 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 (context, output) {
+ output.add("url(");
+ this.value.genCSS(context, output);
+ output.add(")");
+};
+URL.prototype.eval = function (context) {
+ var val = this.value.eval(context),
+ 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" && context.isPathRelative(val.value)) {
+ if (!val.quote) {
+ rootpath = rootpath.replace(/[\(\)'"\s]/g, function(match) { return "\\"+match; });
+ }
+ val.value = rootpath + val.value;
+ }
+
+ val.value = context.normalizePath(val.value);
+
+ // Add url args if enabled
+ if (context.urlArgs) {
+ if (!val.value.match(/^\s*data:/)) {
+ var delimiter = val.value.indexOf('?') === -1 ? '?' : '&';
+ var urlArgs = delimiter + context.urlArgs;
+ if (val.value.indexOf('#') !== -1) {
+ val.value = val.value.replace('#', urlArgs + '#');
+ } else {
+ val.value += urlArgs;
+ }
+ }
+ }
+ }
+
+ return new URL(val, this.index, this.currentFileInfo, true);
+};
+module.exports = URL;
+
+},{"./node":64}],75:[function(require,module,exports){
+var Node = require("./node");
+
+var Value = function (value) {
+ this.value = value;
+ if (!value) {
+ throw new Error("Value requires an array argument");
+ }
+};
+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 (context) {
+ if (this.value.length === 1) {
+ return this.value[0].eval(context);
+ } else {
+ return new Value(this.value.map(function (v) {
+ return v.eval(context);
+ }));
+ }
+};
+Value.prototype.genCSS = function (context, output) {
+ var i;
+ for(i = 0; i < this.value.length; i++) {
+ this.value[i].genCSS(context, output);
+ if (i+1 < this.value.length) {
+ output.add((context && context.compress) ? ',' : ', ');
+ }
+ }
+};
+module.exports = Value;
+
+},{"./node":64}],76:[function(require,module,exports){
+var Node = require("./node");
+
+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 (context) {
+ var variable, name = this.name;
+
+ if (name.indexOf('@@') === 0) {
+ name = '@' + new Variable(name.slice(1), this.index, this.currentFileInfo).eval(context).value;
+ }
+
+ if (this.evaluating) {
+ throw { type: 'Name',
+ message: "Recursive variable definition for " + name,
+ filename: this.currentFileInfo.filename,
+ index: this.index };
+ }
+
+ this.evaluating = true;
+
+ variable = this.find(context.frames, function (frame) {
+ var v = frame.variable(name);
+ if (v) {
+ return v.value.eval(context);
+ }
+ });
+ 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":64}],77:[function(require,module,exports){
+module.exports = {
+ getLocation: function(index, 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
+ };
+ }
+};
+
+},{}],78:[function(require,module,exports){
+var tree = require("../tree"),
+ Visitor = require("./visitor");
+
+/*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":56,"./visitor":83}],79:[function(require,module,exports){
+var contexts = require("../contexts"),
+ Visitor = require("./visitor");
+
+var ImportVisitor = function(importer, finish, evalEnv, onceFileDetectionMap, recursionDetector) {
+ this._visitor = new Visitor(this);
+ this._importer = importer;
+ this._finish = finish;
+ this.context = evalEnv || new contexts.Eval();
+ 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.context);
+ } 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 context = new contexts.Eval(this.context, this.context.frames.slice(0));
+
+ if (importNode.options.multiple) {
+ context.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 (!context.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 && (context.importMultiple || !duplicateImport)) {
+ importVisitor.recursionDetector[fullPath] = true;
+ new ImportVisitor(importVisitor._importer, subFinish, context, 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.context.frames.unshift(directiveNode);
+ return directiveNode;
+ },
+ visitDirectiveOut: function (directiveNode) {
+ this.context.frames.shift();
+ },
+ visitMixinDefinition: function (mixinDefinitionNode, visitArgs) {
+ this.context.frames.unshift(mixinDefinitionNode);
+ return mixinDefinitionNode;
+ },
+ visitMixinDefinitionOut: function (mixinDefinitionNode) {
+ this.context.frames.shift();
+ },
+ visitRuleset: function (rulesetNode, visitArgs) {
+ this.context.frames.unshift(rulesetNode);
+ return rulesetNode;
+ },
+ visitRulesetOut: function (rulesetNode) {
+ this.context.frames.shift();
+ },
+ visitMedia: function (mediaNode, visitArgs) {
+ this.context.frames.unshift(mediaNode.rules[0]);
+ return mediaNode;
+ },
+ visitMediaOut: function (mediaNode) {
+ this.context.frames.shift();
+ }
+};
+module.exports = ImportVisitor;
+
+},{"../contexts":8,"./visitor":83}],80:[function(require,module,exports){
+var visitors = {
+ Visitor: require("./visitor"),
+ ImportVisitor: require('./import-visitor'),
+ ExtendVisitor: require('./extend-visitor'),
+ JoinSelectorVisitor: require('./join-selector-visitor'),
+ ToCSSVisitor: require('./to-css-visitor')
+};
+
+module.exports = visitors;
+
+},{"./extend-visitor":78,"./import-visitor":79,"./join-selector-visitor":81,"./to-css-visitor":82,"./visitor":83}],81:[function(require,module,exports){
+var Visitor = require("./visitor");
+
+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":83}],82:[function(require,module,exports){
+var tree = require("../tree"),
+ Visitor = require("./visitor");
+
+var ToCSSVisitor = function(context) {
+ this._visitor = new Visitor(this);
+ this._context = context;
+};
+
+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._context)) {
+ 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._context).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._context)];
+ }
+ var ruleCSS = rule.toCSS(this._context);
+ 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":56,"./visitor":83}],83:[function(require,module,exports){
+var tree = require("../tree");
+
+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":56}],84:[function(require,module,exports){
+// shim for using process in browser
+
+var process = module.exports = {};
+
+process.nextTick = (function () {
+ var canSetImmediate = typeof window !== 'undefined'
+ && window.setImmediate;
+ var canPost = typeof window !== 'undefined'
+ && window.postMessage && window.addEventListener
+ ;
+
+ if (canSetImmediate) {
+ return function (f) { return window.setImmediate(f) };
+ }
+
+ if (canPost) {
+ var queue = [];
+ window.addEventListener('message', function (ev) {
+ var source = ev.source;
+ if ((source === window || source === null) && ev.data === 'process-tick') {
+ ev.stopPropagation();
+ if (queue.length > 0) {
+ var fn = queue.shift();
+ fn();
+ }
+ }
+ }, true);
+
+ return function nextTick(fn) {
+ queue.push(fn);
+ window.postMessage('process-tick', '*');
+ };
+ }
+
+ return function nextTick(fn) {
+ setTimeout(fn, 0);
+ };
+})();
+
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+
+function noop() {}
+
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
+
+process.binding = function (name) {
+ throw new Error('process.binding is not supported');
+}
+
+// TODO(shtylman)
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+ throw new Error('process.chdir is not supported');
+};
+
+},{}],85:[function(require,module,exports){
+'use strict';
+
+var asap = require('asap')
+
+module.exports = Promise;
+function Promise(fn) {
+ if (typeof this !== 'object') throw new TypeError('Promises must be constructed via new')
+ if (typeof fn !== 'function') throw new TypeError('not a function')
+ var state = null
+ var value = null
+ var deferreds = []
+ var self = this
+
+ this.then = function(onFulfilled, onRejected) {
+ return new self.constructor(function(resolve, reject) {
+ handle(new Handler(onFulfilled, onRejected, resolve, reject))
+ })
+ }
+
+ function handle(deferred) {
+ if (state === null) {
+ deferreds.push(deferred)
+ return
+ }
+ asap(function() {
+ var cb = state ? deferred.onFulfilled : deferred.onRejected
+ if (cb === null) {
+ (state ? deferred.resolve : deferred.reject)(value)
+ return
+ }
+ var ret
+ try {
+ ret = cb(value)
+ }
+ catch (e) {
+ deferred.reject(e)
+ return
+ }
+ deferred.resolve(ret)
+ })
+ }
+
+ function resolve(newValue) {
+ try { //Promise Resolution Procedure: https://github.com/promises-aplus/promises-spec#the-promise-resolution-procedure
+ if (newValue === self) throw new TypeError('A promise cannot be resolved with itself.')
+ if (newValue && (typeof newValue === 'object' || typeof newValue === 'function')) {
+ var then = newValue.then
+ if (typeof then === 'function') {
+ doResolve(then.bind(newValue), resolve, reject)
+ return
+ }
+ }
+ state = true
+ value = newValue
+ finale()
+ } catch (e) { reject(e) }
+ }
+
+ function reject(newValue) {
+ state = false
+ value = newValue
+ finale()
+ }
+
+ function finale() {
+ for (var i = 0, len = deferreds.length; i < len; i++)
+ handle(deferreds[i])
+ deferreds = null
+ }
+
+ doResolve(fn, resolve, reject)
+}
+
+
+function Handler(onFulfilled, onRejected, resolve, reject){
+ this.onFulfilled = typeof onFulfilled === 'function' ? onFulfilled : null
+ this.onRejected = typeof onRejected === 'function' ? onRejected : null
+ this.resolve = resolve
+ this.reject = reject
+}
+
+/**
+ * Take a potentially misbehaving resolver function and make sure
+ * onFulfilled and onRejected are only called once.
+ *
+ * Makes no guarantees about asynchrony.
+ */
+function doResolve(fn, onFulfilled, onRejected) {
+ var done = false;
+ try {
+ fn(function (value) {
+ if (done) return
+ done = true
+ onFulfilled(value)
+ }, function (reason) {
+ if (done) return
+ done = true
+ onRejected(reason)
+ })
+ } catch (ex) {
+ if (done) return
+ done = true
+ onRejected(ex)
+ }
+}
+
+},{"asap":87}],86:[function(require,module,exports){
+'use strict';
+
+//This file contains the ES6 extensions to the core Promises/A+ API
+
+var Promise = require('./core.js')
+var asap = require('asap')
+
+module.exports = Promise
+
+/* Static Functions */
+
+function ValuePromise(value) {
+ this.then = function (onFulfilled) {
+ if (typeof onFulfilled !== 'function') return this
+ return new Promise(function (resolve, reject) {
+ asap(function () {
+ try {
+ resolve(onFulfilled(value))
+ } catch (ex) {
+ reject(ex);
+ }
+ })
+ })
+ }
+}
+ValuePromise.prototype = Promise.prototype
+
+var TRUE = new ValuePromise(true)
+var FALSE = new ValuePromise(false)
+var NULL = new ValuePromise(null)
+var UNDEFINED = new ValuePromise(undefined)
+var ZERO = new ValuePromise(0)
+var EMPTYSTRING = new ValuePromise('')
+
+Promise.resolve = function (value) {
+ if (value instanceof Promise) return value
+
+ if (value === null) return NULL
+ if (value === undefined) return UNDEFINED
+ if (value === true) return TRUE
+ if (value === false) return FALSE
+ if (value === 0) return ZERO
+ if (value === '') return EMPTYSTRING
+
+ if (typeof value === 'object' || typeof value === 'function') {
+ try {
+ var then = value.then
+ if (typeof then === 'function') {
+ return new Promise(then.bind(value))
+ }
+ } catch (ex) {
+ return new Promise(function (resolve, reject) {
+ reject(ex)
+ })
+ }
+ }
+
+ return new ValuePromise(value)
+}
+
+Promise.all = function (arr) {
+ var args = Array.prototype.slice.call(arr)
+
+ return new Promise(function (resolve, reject) {
+ if (args.length === 0) return resolve([])
+ var remaining = args.length
+ function res(i, val) {
+ try {
+ if (val && (typeof val === 'object' || typeof val === 'function')) {
+ var then = val.then
+ if (typeof then === 'function') {
+ then.call(val, function (val) { res(i, val) }, reject)
+ return
+ }
+ }
+ args[i] = val
+ if (--remaining === 0) {
+ resolve(args);
+ }
+ } catch (ex) {
+ reject(ex)
+ }
+ }
+ for (var i = 0; i < args.length; i++) {
+ res(i, args[i])
+ }
+ })
+}
+
+Promise.reject = function (value) {
+ return new Promise(function (resolve, reject) {
+ reject(value);
+ });
+}
+
+Promise.race = function (values) {
+ return new Promise(function (resolve, reject) {
+ values.forEach(function(value){
+ Promise.resolve(value).then(resolve, reject);
+ })
+ });
+}
+
+/* Prototype Methods */
+
+Promise.prototype['catch'] = function (onRejected) {
+ return this.then(null, onRejected);
+}
+
+},{"./core.js":85,"asap":87}],87:[function(require,module,exports){
+(function (process){
+
+// Use the fastest possible means to execute a task in a future turn
+// of the event loop.
+
+// linked list of tasks (single, with head node)
+var head = {task: void 0, next: null};
+var tail = head;
+var flushing = false;
+var requestFlush = void 0;
+var isNodeJS = false;
+
+function flush() {
+ /* jshint loopfunc: true */
+
+ while (head.next) {
+ head = head.next;
+ var task = head.task;
+ head.task = void 0;
+ var domain = head.domain;
+
+ if (domain) {
+ head.domain = void 0;
+ domain.enter();
+ }
+
+ try {
+ task();
+
+ } catch (e) {
+ if (isNodeJS) {
+ // In node, uncaught exceptions are considered fatal errors.
+ // Re-throw them synchronously to interrupt flushing!
+
+ // Ensure continuation if the uncaught exception is suppressed
+ // listening "uncaughtException" events (as domains does).
+ // Continue in next event to avoid tick recursion.
+ if (domain) {
+ domain.exit();
+ }
+ setTimeout(flush, 0);
+ if (domain) {
+ domain.enter();
+ }
+
+ throw e;
+
+ } else {
+ // In browsers, uncaught exceptions are not fatal.
+ // Re-throw them asynchronously to avoid slow-downs.
+ setTimeout(function() {
+ throw e;
+ }, 0);
+ }
+ }
+
+ if (domain) {
+ domain.exit();
+ }
+ }
+
+ flushing = false;
+}
+
+if (typeof process !== "undefined" && process.nextTick) {
+ // Node.js before 0.9. Note that some fake-Node environments, like the
+ // Mocha test runner, introduce a `process` global without a `nextTick`.
+ isNodeJS = true;
+
+ requestFlush = function () {
+ process.nextTick(flush);
+ };
+
+} else if (typeof setImmediate === "function") {
+ // In IE10, Node.js 0.9+, or https://github.com/NobleJS/setImmediate
+ if (typeof window !== "undefined") {
+ requestFlush = setImmediate.bind(window, flush);
+ } else {
+ requestFlush = function () {
+ setImmediate(flush);
+ };
+ }
+
+} else if (typeof MessageChannel !== "undefined") {
+ // modern browsers
+ // http://www.nonblocking.io/2011/06/windownexttick.html
+ var channel = new MessageChannel();
+ channel.port1.onmessage = flush;
+ requestFlush = function () {
+ channel.port2.postMessage(0);
+ };
+
+} else {
+ // old browsers
+ requestFlush = function () {
+ setTimeout(flush, 0);
+ };
+}
+
+function asap(task) {
+ tail = tail.next = {
+ task: task,
+ domain: isNodeJS && process.domain,
+ next: null
+ };
+
+ if (!flushing) {
+ flushing = true;
+ requestFlush();
+ }
+};
+
+module.exports = asap;
+
+
+}).call(this,require('_process'))
+},{"_process":84}],88:[function(require,module,exports){
+// should work in any browser without browserify
+
+if (typeof Promise.prototype.done !== 'function') {
+ Promise.prototype.done = function (onFulfilled, onRejected) {
+ var self = arguments.length ? this.then.apply(this, arguments) : this
+ self.then(null, function (err) {
+ setTimeout(function () {
+ throw err
+ }, 0)
+ })
+ }
+}
+},{}],"promise/polyfill.js":[function(require,module,exports){
+// not "use strict" so we can declare global "Promise"
+
+var asap = require('asap');
+
+if (typeof Promise === 'undefined') {
+ Promise = require('./lib/core.js')
+ require('./lib/es6-extensions.js')
+}
+
+require('./polyfill-done.js');
+
+},{"./lib/core.js":85,"./lib/es6-extensions.js":86,"./polyfill-done.js":88,"asap":87}]},{},[5]);
diff --git a/dist/less.min.js b/dist/less.min.js
new file mode 100644
index 0000000..2ff7e8a
--- /dev/null
+++ b/dist/less.min.js
@@ -0,0 +1,16 @@
+/*!
+ * Less - Leaner CSS v2.0.0-b1
+ * http://lesscss.org
+ *
+ * Copyright (c) 2009-2014, Alexis Sellier <self at cloudhead.net>
+ * Licensed under the Apache v2 License.
+ *
+ */
+
+ /** * @license Apache v2
+ */
+
+require=function a(b,c,d){function e(g,h){if(!c[g]){if(!b[g]){var i="function"==typeof require&&require;if(!h&&i)return i(g,!0);if(f)return f(g,!0);var j=new Error("Cannot find module '"+g+"'");throw j.code="MODULE_NOT_FOUND",j}var k=c[g]={exports:{}};b[g][0].call(k.exports,function(a){var c=b[g][1][a];return e(c?c:a)},k,k.exports,a,b,c,d)}return c[g].exports}for(var f="function"==typeof require&&require,g=0;g<d.length;g++)e(d[g]);return e}({1:[function(a,b){var c=a("./utils");b.exports= [...]
+j.currentDirectory=k.getPath(b),j.relativeUrls&&(j.rootpath=k.join(h.context.rootpath||"",k.pathDiff(j.currentDirectory,j.entryPath)),!k.isPathAbsolute(j.rootpath)&&k.alwaysMakePathsAbsolute()&&(j.rootpath=k.join(j.entryPath,j.rootpath))),j.filename=b;var l=new c.Parse(h.context);l.processImports=!1,h.contents[b]=g,(e.reference||f.reference)&&(j.reference=!0),f.inline?i(null,g,b):new d(l,h,j).parse(g,function(a,c){i(a,c,b)})},function(a){i(a)}):void i({message:"Could not find a file-mana [...]
+return a=.03928>=a?a/12.92:Math.pow((a+.055)/1.055,2.4),b=.03928>=b?b/12.92:Math.pow((b+.055)/1.055,2.4),c=.03928>=c?c/12.92:Math.pow((c+.055)/1.055,2.4),.2126*a+.7152*b+.0722*c},g.prototype.genCSS=function(a,b){b.add(this.toCSS(a))},g.prototype.toCSS=function(a,b){var d,e,f=a&&a.compress&&!b;if(this.keyword)return this.keyword;if(e=this.fround(a,this.alpha),1>e)return"rgba("+this.rgb.map(function(a){return c(Math.round(a),255)}).concat(c(e,1)).join(","+(f?"":" "))+")";if(d=this.toRGB(), [...]
+}),q.splice.apply(q,[f,1].concat(m)),r+=m.length-1,f+=m.length-1,n.resetCache()):"RulesetCall"===q[f].type&&(m=q[f].eval(a).rules.filter(function(a){return a instanceof d&&a.variable?!1:!0}),q.splice.apply(q,[f,1].concat(m)),r+=m.length-1,f+=m.length-1,n.resetCache());for(f=0;f<q.length;f++)k=q[f],k.evalFirst||(q[f]=k=k.eval?k.eval(a):k);for(f=0;f<q.length;f++)if(k=q[f],k instanceof j&&k.selectors&&1===k.selectors.length&&k.selectors[0].isJustParentSelector()){q.splice(f--,1);for(var t=0 [...]
\ No newline at end of file
--
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