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less.js
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less.js
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/*!
* Less - Leaner CSS v2.7.2
* http://lesscss.org
*
* Copyright (c) 2009-2017, Alexis Sellier <self@cloudhead.net>
* Licensed under the Apache-2.0 License.
*
*/
/** * @license Apache-2.0
*/
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.less = f()}})(function(){var define,module,exports;return (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 addDataAttr = require("./utils").addDataAttr,
browser = require("./browser");
module.exports = function(window, options) {
// use options from the current script tag data attribues
addDataAttr(options, browser.currentScript(window));
if (options.isFileProtocol === undefined) {
options.isFileProtocol = /^(file|(chrome|safari)(-extension)?|resource|qrc|app):/.test(window.location.protocol);
}
// 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 || (options.isFileProtocol ? 1000 : 1500);
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) ||
options.isFileProtocol ? 'development'
: 'production');
var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(window.location.hash);
if (dumpLineNumbers) {
options.dumpLineNumbers = dumpLineNumbers[1];
}
if (options.useFileCache === undefined) {
options.useFileCache = true;
}
if (options.onReady === undefined) {
options.onReady = true;
}
};
},{"./browser":3,"./utils":10}],2:[function(require,module,exports){
/**
* Kicks off less and compiles any stylesheets
* used in the browser distributed version of less
* to kick-start less using the browser api
*/
/*global window, document */
// shim Promise if required
require('promise/polyfill.js');
var options = window.less || {};
require("./add-default-options")(window, options);
var less = module.exports = require("./index")(window, options);
window.less = less;
var css, head, style;
// Always restore page visibility
function resolveOrReject(data) {
if (data.filename) {
console.warn(data);
}
if (!options.async) {
head.removeChild(style);
}
}
if (options.onReady) {
if (/!watch/.test(window.location.hash)) {
less.watch();
}
// Simulate synchronous stylesheet loading by blocking page rendering
if (!options.async) {
css = 'body { display: none !important }';
head = document.head || document.getElementsByTagName('head')[0];
style = document.createElement('style');
style.type = 'text/css';
if (style.styleSheet) {
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
head.appendChild(style);
}
less.registerStylesheetsImmediately();
less.pageLoadFinished = less.refresh(less.env === 'development').then(resolveOrReject, resolveOrReject);
}
},{"./add-default-options":1,"./index":8,"promise/polyfill.js":97}],3:[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 oldStyleNode = document.getElementById(id);
var keepOldStyleNode = false;
// Create a new stylesheet node for insertion or (if necessary) replacement
var styleNode = document.createElement('style');
styleNode.setAttribute('type', 'text/css');
if (sheet.media) {
styleNode.setAttribute('media', sheet.media);
}
styleNode.id = id;
if (!styleNode.styleSheet) {
styleNode.appendChild(document.createTextNode(styles));
// If new contents match contents of oldStyleNode, don't replace oldStyleNode
keepOldStyleNode = (oldStyleNode !== null && oldStyleNode.childNodes.length > 0 && styleNode.childNodes.length > 0 &&
oldStyleNode.firstChild.nodeValue === styleNode.firstChild.nodeValue);
}
var head = document.getElementsByTagName('head')[0];
// If there is no oldStyleNode, just append; otherwise, only append if we need
// to replace oldStyleNode with an updated stylesheet
if (oldStyleNode === null || keepOldStyleNode === false) {
var nextEl = sheet && sheet.nextSibling || null;
if (nextEl) {
nextEl.parentNode.insertBefore(styleNode, nextEl);
} else {
head.appendChild(styleNode);
}
}
if (oldStyleNode && keepOldStyleNode === false) {
oldStyleNode.parentNode.removeChild(oldStyleNode);
}
// 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 (styleNode.styleSheet) {
try {
styleNode.styleSheet.cssText = styles;
} catch (e) {
throw new Error("Couldn't reassign styleSheet.cssText.");
}
}
},
currentScript: function(window) {
var document = window.document;
return document.currentScript || (function() {
var scripts = document.getElementsByTagName("script");
return scripts[scripts.length - 1];
})();
}
};
},{"./utils":10}],4:[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, modifyVars, styles) {
if (cache) {
logger.info('saving ' + path + ' to cache.');
try {
cache.setItem(path, styles);
cache.setItem(path + ':timestamp', lastModified);
if (modifyVars) {
cache.setItem(path + ':vars', JSON.stringify(modifyVars));
}
} catch(e) {
//TODO - could do with adding more robust error handling
logger.error('failed to save "' + path + '" to local storage for caching.');
}
}
},
getCSS: function(path, webInfo, modifyVars) {
var css = cache && cache.getItem(path),
timestamp = cache && cache.getItem(path + ':timestamp'),
vars = cache && cache.getItem(path + ':vars');
modifyVars = modifyVars || {};
if (timestamp && webInfo.lastModified &&
(new Date(webInfo.lastModified).valueOf() ===
new Date(timestamp).valueOf()) &&
(!modifyVars && !vars || JSON.stringify(modifyVars) === vars)) {
// Use local copy
return css;
}
}
};
};
},{}],5:[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 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);
}
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);
}
}
return {
add: error,
remove: removeError
};
};
},{"./browser":3,"./utils":10}],6:[function(require,module,exports){
/*global window, XMLHttpRequest */
module.exports = function(options, logger) {
var 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
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 = options.isFileProtocol ? options.fileAsync : true;
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 (options.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.clearFileCache = function() {
fileCache = {};
};
FileManager.prototype.loadFile = function loadFile(filename, currentDirectory, options, environment, callback) {
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];
callback(null, { contents: lessText, filename: href, webInfo: { lastModified: new Date() }});
} catch (e) {
callback({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)
callback(null, { contents: data, filename: href, webInfo: { lastModified: lastModified }});
}, function doXHRError(status, url) {
callback({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")", href: href });
});
};
return FileManager;
};
},{"../less/environment/abstract-file-manager.js":15}],7:[function(require,module,exports){
module.exports = function() {
var functionRegistry = require("./../less/functions/function-registry");
function imageSize() {
throw {
type: "Runtime",
message: "Image size functions are not supported in browser version of less"
};
}
var imageFunctions = {
"image-size": function(filePathNode) {
imageSize(this, filePathNode);
return -1;
},
"image-width": function(filePathNode) {
imageSize(this, filePathNode);
return -1;
},
"image-height": function(filePathNode) {
imageSize(this, filePathNode);
return -1;
}
};
functionRegistry.addMultiple(imageFunctions);
};
},{"./../less/functions/function-registry":22}],8:[function(require,module,exports){
//
// index.js
// Should expose the additional browser functions on to the less object
//
var addDataAttr = require("./utils").addDataAttr,
browser = require("./browser");
module.exports = function(window, options) {
var document = window.document;
var less = require('../less')();
//module.exports = less;
less.options = options;
var environment = less.environment,
FileManager = require("./file-manager")(options, 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 cache = less.cache = options.cache || require("./cache")(window, options, less.logger);
require('./image-size')(less.environment);
//Setup user functions
if (options.functions) {
less.functions.functionRegistry.addMultiple(options.functions);
}
var typePattern = /^text\/(x-)?less$/;
function postProcessCSS(styles) { // deprecated, use a plugin for postprocesstasks
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(/#.*$/, '');
/*jshint loopfunc:true */
// use closure to store current style
less.render(lessText, instanceOptions,
bind(function(style, e, result) {
if (e) {
errors.add(e, "inline");
} else {
style.type = 'text/css';
if (style.styleSheet) {
style.styleSheet.cssText = result.css;
} else {
style.innerHTML = result.css;
}
}
}, null, style));
}
}
}
function loadStyleSheet(sheet, callback, reload, remaining, modifyVars) {
var instanceOptions = clone(options);
addDataAttr(instanceOptions, sheet);
instanceOptions.mime = sheet.type;
if (modifyVars) {
instanceOptions.modifyVars = modifyVars;
}
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, instanceOptions.modifyVars);
if (!reload && css) {
webInfo.local = true;
callback(null, css, data, sheet, webInfo, path);
return;
}
}
//TODO add tests around how this behaves when reloading
errors.remove(path);
instanceOptions.rootFileInfo = newFileInfo;
less.render(data, instanceOptions, function(e, result) {
if (e) {
e.href = path;
callback(e);
} else {
result.css = postProcessCSS(result.css);
cache.setCSS(sheet.href, webInfo.lastModified, instanceOptions.modifyVars, result.css);
callback(null, result.css, data, sheet, webInfo, path);
}
});
}
fileManager.loadFile(sheet.href, null, instanceOptions, environment, function(e, loadedFile) {
if (e) {
callback(e);
return;
}
loadInitialFileCallback(loadedFile);
});
}
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) {
fileManager.clearFileCache();
loadStyleSheets(function (e, css, _, sheet, webInfo) {
if (e) {
errors.add(e, e.href || sheet.href);
} else if (css) {
browser.createCSS(window.document, css, sheet);
}
});
}
}, 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; };
//
// Synchronously get all <link> tags with the 'rel' attribute set to
// "stylesheet/less".
//
less.registerStylesheetsImmediately = function() {
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]);
}
}
};
//
// Asynchronously get all <link> tags with the 'rel' attribute set to
// "stylesheet/less", returning a Promise.
//
less.registerStylesheets = function() {
return new Promise(function(resolve, reject) {
less.registerStylesheetsImmediately();
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(true, record, false);
};
less.refresh = function (reload, modifyVars, clearFileCache) {
if ((reload || clearFileCache) && clearFileCache !== false) {
fileManager.clearFileCache();
}
return new Promise(function (resolve, reject) {
var startTime, endTime, totalMilliseconds, remainingSheets;
startTime = endTime = new Date();
// Set counter for remaining unprocessed sheets
remainingSheets = less.sheets.length;
if (remainingSheets === 0) {
endTime = new Date();
totalMilliseconds = endTime - startTime;
less.logger.info("Less has finished and no sheets were loaded.");
resolve({
startTime: startTime,
endTime: endTime,
totalMilliseconds: totalMilliseconds,
sheets: less.sheets.length
});
} else {
// Relies on less.sheets array, callback seems to be guaranteed to be called for every element of the array
loadStyleSheets(function (e, css, _, sheet, webInfo) {
if (e) {
errors.add(e, e.href || sheet.href);
reject(e);
return;
}
if (webInfo.local) {
less.logger.info("Loading " + sheet.href + " from cache.");
} else {
less.logger.info("Rendered " + sheet.href + " successfully.");
}
browser.createCSS(window.document, css, sheet);
less.logger.info("CSS for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms');
// Count completed sheet
remainingSheets--;
// Check if the last remaining sheet was processed and then call the promise
if (remainingSheets === 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;
return less;
};
},{"../less":31,"./browser":3,"./cache":4,"./error-reporting":5,"./file-manager":6,"./image-size":7,"./log-listener":9,"./utils":10}],9:[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]);
}
};
},{}],10:[function(require,module,exports){
module.exports = {
extractId: function(href) {
return href.replace(/^[a-z-]+:\/+?[^\/]+/, '') // Remove protocol & domain
.replace(/[\?\&]livereload=\w+/, '') // Remove LiveReload cachebuster
.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)
},
addDataAttr: function(options, tag) {
for (var opt in tag.dataset) {
if (tag.dataset.hasOwnProperty(opt)) {
if (opt === "env" || opt === "dumpLineNumbers" || opt === "rootpath" || opt === "errorReporting") {
options[opt] = tag.dataset[opt];
} else {
try {
options[opt] = JSON.parse(tag.dataset[opt]);
}
catch(_) {}
}
}
}
}
};
},{}],11:[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.
'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 = [
'paths', // additional include paths
'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
'importantScope' // used to bubble up !important statements
];
contexts.Eval = function(options, frames) {
copyFromOriginal(options, this, evalCopyProperties);
if (typeof this.paths === "string") { this.paths = [this.paths]; }
this.frames = frames || [];
this.importantScope = this.importantScope || [];
};
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-]+:|\/|#)/i.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;