#!/usr/bin/env node // AUTO-GENERATED BY ROLLUP 'use strict'; var path = require('path'); var os = require('os'); var CloneHelper = require('clone'); var tslib = require('tslib'); var url = require('url'); var fs; try { fs = require('graceful-fs'); } catch (e) { fs = require('fs'); } var fs$1 = fs; var Math$1 = { ALWAYS: 0, PARENS_DIVISION: 1, PARENS: 2, STRICT_LEGACY: 3 }; var RewriteUrls = { OFF: 0, LOCAL: 1, ALL: 2 }; /* jshint proto: true */ function getLocation(index, inputStream) { var n = index + 1; var line = null; var 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 }; } function copyArray(arr) { var i; var length = arr.length; var copy = new Array(length); for (i = 0; i < length; i++) { copy[i] = arr[i]; } return copy; } function clone(obj) { var cloned = {}; for (var prop in obj) { if (obj.hasOwnProperty(prop)) { cloned[prop] = obj[prop]; } } return cloned; } function defaults(obj1, obj2) { var newObj = obj2 || {}; if (!obj2._defaults) { newObj = {}; var defaults_1 = CloneHelper(obj1); newObj._defaults = defaults_1; var cloned = obj2 ? CloneHelper(obj2) : {}; Object.assign(newObj, defaults_1, cloned); } return newObj; } function copyOptions(obj1, obj2) { if (obj2 && obj2._defaults) { return obj2; } var opts = defaults(obj1, obj2); if (opts.strictMath) { opts.math = Math$1.STRICT_LEGACY; } // Back compat with changed relativeUrls option if (opts.relativeUrls) { opts.rewriteUrls = RewriteUrls.ALL; } if (typeof opts.math === 'string') { switch (opts.math.toLowerCase()) { case 'always': opts.math = Math$1.ALWAYS; break; case 'parens-division': opts.math = Math$1.PARENS_DIVISION; break; case 'strict': case 'parens': opts.math = Math$1.PARENS; break; case 'strict-legacy': opts.math = Math$1.STRICT_LEGACY; } } if (typeof opts.rewriteUrls === 'string') { switch (opts.rewriteUrls.toLowerCase()) { case 'off': opts.rewriteUrls = RewriteUrls.OFF; break; case 'local': opts.rewriteUrls = RewriteUrls.LOCAL; break; case 'all': opts.rewriteUrls = RewriteUrls.ALL; break; } } return opts; } function merge(obj1, obj2) { for (var prop in obj2) { if (obj2.hasOwnProperty(prop)) { obj1[prop] = obj2[prop]; } } return obj1; } function flattenArray(arr, result) { if (result === void 0) { result = []; } for (var i_1 = 0, length_1 = arr.length; i_1 < length_1; i_1++) { var value = arr[i_1]; if (Array.isArray(value)) { flattenArray(value, result); } else { if (value !== undefined) { result.push(value); } } } return result; } var utils = /*#__PURE__*/Object.freeze({ __proto__: null, getLocation: getLocation, copyArray: copyArray, clone: clone, defaults: defaults, copyOptions: copyOptions, merge: merge, flattenArray: flattenArray }); var environment = { encodeBase64: function encodeBase64(str) { // Avoid Buffer constructor on newer versions of Node.js. var buffer = (Buffer.from ? Buffer.from(str) : (new Buffer(str))); return buffer.toString('base64'); }, mimeLookup: function (filename) { return require('mime').lookup(filename); }, charsetLookup: function (mime) { return require('mime').charsets.lookup(mime); }, getSourceMapGenerator: function getSourceMapGenerator() { return require('source-map').SourceMapGenerator; } }; var AbstractFileManager = /** @class */ (function () { function AbstractFileManager() { } AbstractFileManager.prototype.getPath = function (filename) { var j = filename.lastIndexOf('?'); if (j > 0) { filename = filename.slice(0, j); } j = filename.lastIndexOf('/'); if (j < 0) { j = filename.lastIndexOf('\\'); } if (j < 0) { return ''; } return filename.slice(0, j + 1); }; AbstractFileManager.prototype.tryAppendExtension = function (path, ext) { return /(\.[a-z]*$)|([\?;].*)$/.test(path) ? path : path + ext; }; AbstractFileManager.prototype.tryAppendLessExtension = function (path) { return this.tryAppendExtension(path, '.less'); }; AbstractFileManager.prototype.supportsSync = function () { return false; }; AbstractFileManager.prototype.alwaysMakePathsAbsolute = function () { return false; }; AbstractFileManager.prototype.isPathAbsolute = function (filename) { return (/^(?:[a-z-]+:|\/|\\|#)/i).test(filename); }; // TODO: pull out / replace? AbstractFileManager.prototype.join = function (basePath, laterPath) { if (!basePath) { return laterPath; } return basePath + laterPath; }; AbstractFileManager.prototype.pathDiff = function (url, baseUrl) { // diff between two paths to create a relative path var urlParts = this.extractUrlParts(url); var baseUrlParts = this.extractUrlParts(baseUrl); var i; var max; var urlDirectories; var baseUrlDirectories; var diff = ''; if (urlParts.hostPart !== baseUrlParts.hostPart) { return ''; } max = Math.max(baseUrlParts.directories.length, urlParts.directories.length); for (i = 0; i < max; i++) { if (baseUrlParts.directories[i] !== urlParts.directories[i]) { break; } } baseUrlDirectories = baseUrlParts.directories.slice(i); urlDirectories = urlParts.directories.slice(i); for (i = 0; i < baseUrlDirectories.length - 1; i++) { diff += '../'; } for (i = 0; i < urlDirectories.length - 1; i++) { diff += urlDirectories[i] + "/"; } return diff; }; // helper function, not part of API AbstractFileManager.prototype.extractUrlParts = function (url, baseUrl) { // urlParts[1] = protocol://hostname/ OR / // urlParts[2] = / if path relative to host base // urlParts[3] = directories // urlParts[4] = filename // urlParts[5] = parameters var urlPartsRegex = /^((?:[a-z-]+:)?\/{2}(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/i; var urlParts = url.match(urlPartsRegex); var returner = {}; var rawDirectories = []; var directories = []; var i; var 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]) { rawDirectories = urlParts[3].replace(/\\/g, '/').split('/'); // collapse '..' and skip '.' for (i = 0; i < rawDirectories.length; i++) { if (rawDirectories[i] === '..') { directories.pop(); } else if (rawDirectories[i] !== '.') { directories.push(rawDirectories[i]); } } } returner.hostPart = urlParts[1]; returner.directories = directories; returner.rawPath = (urlParts[1] || '') + rawDirectories.join('/'); returner.path = (urlParts[1] || '') + directories.join('/'); returner.filename = urlParts[4]; returner.fileUrl = returner.path + (urlParts[4] || ''); returner.url = returner.fileUrl + (urlParts[5] || ''); return returner; }; return AbstractFileManager; }()); var FileManager = /** @class */ (function (_super) { tslib.__extends(FileManager, _super); function FileManager() { return _super !== null && _super.apply(this, arguments) || this; } FileManager.prototype.supports = function () { return true; }; FileManager.prototype.supportsSync = function () { return true; }; FileManager.prototype.loadFile = function (filename, currentDirectory, options, environment, callback) { var fullFilename; var isAbsoluteFilename = this.isPathAbsolute(filename); var filenamesTried = []; var self = this; var prefix = filename.slice(0, 1); var explicit = prefix === '.' || prefix === '/'; var result = null; var isNodeModule = false; var npmPrefix = 'npm://'; options = options || {}; var paths = isAbsoluteFilename ? [''] : [currentDirectory]; if (options.paths) { paths.push.apply(paths, options.paths); } if (!isAbsoluteFilename && paths.indexOf('.') === -1) { paths.push('.'); } var prefixes = options.prefixes || ['']; var fileParts = this.extractUrlParts(filename); if (options.syncImport) { getFileData(returnData, returnData); if (callback) { callback(result.error, result); } else { return result; } } else { // promise is guaranteed to be asyncronous // which helps as it allows the file handle // to be closed before it continues with the next file return new Promise(getFileData); } function returnData(data) { if (!data.filename) { result = { error: data }; } else { result = data; } } function getFileData(fulfill, reject) { (function tryPathIndex(i) { if (i < paths.length) { (function tryPrefix(j) { if (j < prefixes.length) { isNodeModule = false; fullFilename = fileParts.rawPath + prefixes[j] + fileParts.filename; if (paths[i]) { fullFilename = path.join(paths[i], fullFilename); } if (!explicit && paths[i] === '.') { try { fullFilename = require.resolve(fullFilename); isNodeModule = true; } catch (e) { filenamesTried.push(npmPrefix + fullFilename); tryWithExtension(); } } else { tryWithExtension(); } function tryWithExtension() { var extFilename = options.ext ? self.tryAppendExtension(fullFilename, options.ext) : fullFilename; if (extFilename !== fullFilename && !explicit && paths[i] === '.') { try { fullFilename = require.resolve(extFilename); isNodeModule = true; } catch (e) { filenamesTried.push(npmPrefix + extFilename); fullFilename = extFilename; } } else { fullFilename = extFilename; } } var readFileArgs = [fullFilename]; if (!options.rawBuffer) { readFileArgs.push('utf-8'); } if (options.syncImport) { try { var data = fs$1.readFileSync.apply(this, readFileArgs); fulfill({ contents: data, filename: fullFilename }); } catch (e) { filenamesTried.push(isNodeModule ? npmPrefix + fullFilename : fullFilename); return tryPrefix(j + 1); } } else { readFileArgs.push(function (e, data) { if (e) { filenamesTried.push(isNodeModule ? npmPrefix + fullFilename : fullFilename); return tryPrefix(j + 1); } fulfill({ contents: data, filename: fullFilename }); }); fs$1.readFile.apply(this, readFileArgs); } } else { tryPathIndex(i + 1); } })(0); } else { reject({ type: 'File', message: "'" + filename + "' wasn't found. Tried - " + filenamesTried.join(',') }); } }(0)); } }; FileManager.prototype.loadFileSync = function (filename, currentDirectory, options, environment) { options.syncImport = true; return this.loadFile(filename, currentDirectory, options, environment); }; return FileManager; }(AbstractFileManager)); var logger = { 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_1 = 0; i_1 < this._listeners.length; i_1++) { if (this._listeners[i_1] === listener) { this._listeners.splice(i_1, 1); return; } } }, _fireEvent: function (type, msg) { for (var i_2 = 0; i_2 < this._listeners.length; i_2++) { var logFunction = this._listeners[i_2][type]; if (logFunction) { logFunction(msg); } } }, _listeners: [] }; var isUrlRe = /^(?:https?:)?\/\//i; var request; var UrlFileManager = /** @class */ (function (_super) { tslib.__extends(UrlFileManager, _super); function UrlFileManager() { return _super !== null && _super.apply(this, arguments) || this; } UrlFileManager.prototype.supports = function (filename, currentDirectory, options, environment) { return isUrlRe.test(filename) || isUrlRe.test(currentDirectory); }; UrlFileManager.prototype.loadFile = function (filename, currentDirectory, options, environment) { return new Promise(function (fulfill, reject) { if (request === undefined) { try { request = require('request'); } catch (e) { request = null; } } if (!request) { reject({ type: 'File', message: 'optional dependency \'request\' required to import over http(s)\n' }); return; } var urlStr = isUrlRe.test(filename) ? filename : url.resolve(currentDirectory, filename); var urlObj = url.parse(urlStr); if (!urlObj.protocol) { urlObj.protocol = 'http'; urlStr = urlObj.format(); } request.get({ uri: urlStr, strictSSL: !options.insecure }, function (error, res, body) { if (error) { reject({ type: 'File', message: "resource '" + urlStr + "' gave this Error:\n " + error + "\n" }); return; } if (res && res.statusCode === 404) { reject({ type: 'File', message: "resource '" + urlStr + "' was not found\n" }); return; } if (!body) { logger.warn("Warning: Empty body (HTTP " + res.statusCode + ") returned by \"" + urlStr + "\""); } fulfill({ contents: body, filename: urlStr }); }); }); }; return UrlFileManager; }(AbstractFileManager)); var colors = { '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', 'rebeccapurple': '#663399', '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' }; var unitConversions = { 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 } }; var data = { colors: colors, unitConversions: unitConversions }; var Node = /** @class */ (function () { function Node() { this.parent = null; this.visibilityBlocks = undefined; this.nodeVisible = undefined; this.rootNode = null; this.parsed = null; var self = this; Object.defineProperty(this, 'currentFileInfo', { get: function () { return self.fileInfo(); } }); Object.defineProperty(this, 'index', { get: function () { return self.getIndex(); } }); } Node.prototype.setParent = function (nodes, parent) { function set(node) { if (node && node instanceof Node) { node.parent = parent; } } if (Array.isArray(nodes)) { nodes.forEach(set); } else { set(nodes); } }; Node.prototype.getIndex = function () { return this._index || (this.parent && this.parent.getIndex()) || 0; }; Node.prototype.fileInfo = function () { return this._fileInfo || (this.parent && this.parent.fileInfo()) || {}; }; Node.prototype.isRulesetLike = function () { return false; }; 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) ? Number((value + 2e-16).toFixed(precision)) : value; }; // Returns true if this node represents root of ast imported by reference Node.prototype.blocksVisibility = function () { if (this.visibilityBlocks == null) { this.visibilityBlocks = 0; } return this.visibilityBlocks !== 0; }; Node.prototype.addVisibilityBlock = function () { if (this.visibilityBlocks == null) { this.visibilityBlocks = 0; } this.visibilityBlocks = this.visibilityBlocks + 1; }; Node.prototype.removeVisibilityBlock = function () { if (this.visibilityBlocks == null) { this.visibilityBlocks = 0; } this.visibilityBlocks = this.visibilityBlocks - 1; }; // Turns on node visibility - if called node will be shown in output regardless // of whether it comes from import by reference or not Node.prototype.ensureVisibility = function () { this.nodeVisible = true; }; // Turns off node visibility - if called node will NOT be shown in output regardless // of whether it comes from import by reference or not Node.prototype.ensureInvisibility = function () { this.nodeVisible = false; }; // return values: // false - the node must not be visible // true - the node must be visible // undefined or null - the node has the same visibility as its parent Node.prototype.isVisible = function () { return this.nodeVisible; }; Node.prototype.visibilityInfo = function () { return { visibilityBlocks: this.visibilityBlocks, nodeVisible: this.nodeVisible }; }; Node.prototype.copyVisibilityInfo = function (info) { if (!info) { return; } this.visibilityBlocks = info.visibilityBlocks; this.nodeVisible = info.nodeVisible; }; return Node; }()); 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_1 = 0; i_1 < a.length; i_1++) { if (Node.compare(a[i_1], b[i_1]) !== 0) { return undefined; } } return 0; }; Node.numericCompare = function (a, b) { return a < b ? -1 : a === b ? 0 : a > b ? 1 : undefined; }; // // RGB Colors - #ff0014, #eee // var Color = /** @class */ (function (_super) { tslib.__extends(Color, _super); function Color(rgb, a, originalForm) { var _this = _super.call(this) || this; var self = _this; // // 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, i) { if (i < 3) { self.rgb.push(parseInt(c, 16)); } else { self.alpha = (parseInt(c, 16)) / 255; } }); } else { _this.rgb = []; rgb.split('').map(function (c, i) { if (i < 3) { self.rgb.push(parseInt(c + c, 16)); } else { self.alpha = (parseInt(c + c, 16)) / 255; } }); } _this.alpha = _this.alpha || (typeof a === 'number' ? a : 1); if (typeof originalForm !== 'undefined') { _this.value = originalForm; } return _this; } Color.prototype.luma = function () { var r = this.rgb[0] / 255; var g = this.rgb[1] / 255; var 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; var color; var alpha; var colorFunction; var args = []; // `value` 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. alpha = this.fround(context, this.alpha); if (this.value) { if (this.value.indexOf('rgb') === 0) { if (alpha < 1) { colorFunction = 'rgba'; } } else if (this.value.indexOf('hsl') === 0) { if (alpha < 1) { colorFunction = 'hsla'; } else { colorFunction = 'hsl'; } } else { return this.value; } } else { if (alpha < 1) { colorFunction = 'rgba'; } } switch (colorFunction) { case 'rgba': args = this.rgb.map(function (c) { return clamp(Math.round(c), 255); }).concat(clamp(alpha, 1)); break; case 'hsla': args.push(clamp(alpha, 1)); case 'hsl': color = this.toHSL(); args = [ this.fround(context, color.h), this.fround(context, color.s * 100) + "%", this.fround(context, color.l * 100) + "%" ].concat(args); } if (colorFunction) { // Values are capped between `0` and `255`, rounded and zero-padded. return colorFunction + "(" + args.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 = new Array(3); 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; var g = this.rgb[1] / 255; var b = this.rgb[2] / 255; var a = this.alpha; var max = Math.max(r, g, b); var min = Math.min(r, g, b); var h; var s; var l = (max + min) / 2; var 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; var g = this.rgb[1] / 255; var b = this.rgb[2] / 255; var a = this.alpha; var max = Math.max(r, g, b); var min = Math.min(r, g, b); var h; var s; var 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; }; return Color; }(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.fromKeyword = function (keyword) { var c; var 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.value = keyword; return c; } }; var Paren = /** @class */ (function (_super) { tslib.__extends(Paren, _super); function Paren(node) { var _this = _super.call(this) || this; _this.value = node; return _this; } 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)); }; return Paren; }(Node)); Paren.prototype.type = 'Paren'; var _noSpaceCombinators = { '': true, ' ': true, '|': true }; var Combinator = /** @class */ (function (_super) { tslib.__extends(Combinator, _super); function Combinator(value) { var _this = _super.call(this) || this; if (value === ' ') { _this.value = ' '; _this.emptyOrWhitespace = true; } else { _this.value = value ? value.trim() : ''; _this.emptyOrWhitespace = _this.value === ''; } return _this; } Combinator.prototype.genCSS = function (context, output) { var spaceOrEmpty = (context.compress || _noSpaceCombinators[this.value]) ? '' : ' '; output.add(spaceOrEmpty + this.value + spaceOrEmpty); }; return Combinator; }(Node)); Combinator.prototype.type = 'Combinator'; var Element = /** @class */ (function (_super) { tslib.__extends(Element, _super); function Element(combinator, value, isVariable, index, currentFileInfo, visibilityInfo) { var _this = _super.call(this) || this; _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.isVariable = isVariable; _this._index = index; _this._fileInfo = currentFileInfo; _this.copyVisibilityInfo(visibilityInfo); _this.setParent(_this.combinator, _this); return _this; } 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.isVariable, this.getIndex(), this.fileInfo(), this.visibilityInfo()); }; Element.prototype.clone = function () { return new Element(this.combinator, this.value, this.isVariable, this.getIndex(), this.fileInfo(), this.visibilityInfo()); }; Element.prototype.genCSS = function (context, output) { output.add(this.toCSS(context), this.fileInfo(), this.getIndex()); }; Element.prototype.toCSS = function (context) { if (context === void 0) { context = {}; } var value = this.value; var 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; } }; return Element; }(Node)); Element.prototype.type = 'Element'; var anonymousFunc = /(|Function):(\d+):(\d+)/; /** * This is a centralized class of any error that could be thrown internally (mostly by the parser). * Besides standard .message it keeps some additional data like a path to the file where the error * occurred along with line and column numbers. * * @class * @extends Error * @type {module.LessError} * * @prop {string} type * @prop {string} filename * @prop {number} index * @prop {number} line * @prop {number} column * @prop {number} callLine * @prop {number} callExtract * @prop {string[]} extract * * @param {Object} e - An error object to wrap around or just a descriptive object * @param {Object} fileContentMap - An object with file contents in 'contents' property (like importManager) @todo - move to fileManager? * @param {string} [currentFilename] */ var LessError = function LessError(e, fileContentMap, currentFilename) { Error.call(this); var filename = e.filename || currentFilename; this.message = e.message; this.stack = e.stack; if (fileContentMap && filename) { var input = fileContentMap.contents[filename]; var loc = getLocation(e.index, input); var line = loc.line; var col = loc.column; var callLine = e.call && getLocation(e.call, input).line; var lines = input ? input.split('\n') : ''; this.type = e.type || 'Syntax'; this.filename = filename; this.index = e.index; this.line = typeof line === 'number' ? line + 1 : null; this.column = col; if (!this.line && this.stack) { var found = this.stack.match(anonymousFunc); /** * We have to figure out how this environment stringifies anonymous functions * so we can correctly map plugin errors. * * Note, in Node 8, the output of anonymous funcs varied based on parameters * being present or not, so we inject dummy params. */ var func = new Function('a', 'throw new Error()'); var lineAdjust = 0; try { func(); } catch (e) { var match = e.stack.match(anonymousFunc); var line_1 = parseInt(match[2]); lineAdjust = 1 - line_1; } if (found) { if (found[2]) { this.line = parseInt(found[2]) + lineAdjust; } if (found[3]) { this.column = parseInt(found[3]); } } } this.callLine = callLine + 1; this.callExtract = lines[callLine]; this.extract = [ lines[this.line - 2], lines[this.line - 1], lines[this.line] ]; } }; if (typeof Object.create === 'undefined') { var F = function () { }; F.prototype = Error.prototype; LessError.prototype = new F(); } else { LessError.prototype = Object.create(Error.prototype); } LessError.prototype.constructor = LessError; /** * An overridden version of the default Object.prototype.toString * which uses additional information to create a helpful message. * * @param {Object} options * @returns {string} */ LessError.prototype.toString = function (options) { if (options === void 0) { options = {}; } var message = ''; var extract = this.extract || []; var error = []; var stylize = function (str) { return str; }; if (options.stylize) { var type = typeof options.stylize; if (type !== 'function') { throw Error("options.stylize should be a function, got a " + type + "!"); } stylize = options.stylize; } if (this.line !== null) { if (typeof extract[0] === 'string') { error.push(stylize(this.line - 1 + " " + extract[0], 'grey')); } if (typeof extract[1] === 'string') { var errorTxt = this.line + " "; if (extract[1]) { errorTxt += extract[1].slice(0, this.column) + stylize(stylize(stylize(extract[1].substr(this.column, 1), 'bold') + extract[1].slice(this.column + 1), 'red'), 'inverse'); } error.push(errorTxt); } if (typeof extract[2] === 'string') { error.push(stylize(this.line + 1 + " " + extract[2], 'grey')); } error = error.join('\n') + stylize('', 'reset') + "\n"; } message += stylize(this.type + "Error: " + this.message, 'red'); if (this.filename) { message += stylize(' in ', 'red') + this.filename; } if (this.line) { message += stylize(" on line " + this.line + ", column " + (this.column + 1) + ":", 'grey'); } message += "\n" + error; if (this.callLine) { message += stylize('from ', 'red') + (this.filename || '') + "/n"; message += stylize(this.callLine, 'grey') + " " + this.callExtract + "/n"; } return message; }; var Selector = /** @class */ (function (_super) { tslib.__extends(Selector, _super); function Selector(elements, extendList, condition, index, currentFileInfo, visibilityInfo) { var _this = _super.call(this) || this; _this.extendList = extendList; _this.condition = condition; _this.evaldCondition = !condition; _this._index = index; _this._fileInfo = currentFileInfo; _this.elements = _this.getElements(elements); _this.mixinElements_ = undefined; _this.copyVisibilityInfo(visibilityInfo); _this.setParent(_this.elements, _this); return _this; } 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) { elements = this.getElements(elements); var newSelector = new Selector(elements, extendList || this.extendList, null, this.getIndex(), this.fileInfo(), this.visibilityInfo()); newSelector.evaldCondition = (evaldCondition != null) ? evaldCondition : this.evaldCondition; newSelector.mediaEmpty = this.mediaEmpty; return newSelector; }; Selector.prototype.getElements = function (els) { if (!els) { return [new Element('', '&', false, this._index, this._fileInfo)]; } if (typeof els === 'string') { this.parse.parseNode(els, ['selector'], this._index, this._fileInfo, function (err, result) { if (err) { throw new LessError({ index: err.index, message: err.message }, this.parse.imports, this._fileInfo.filename); } els = result[0].elements; }); } return els; }; Selector.prototype.createEmptySelectors = function () { var el = new Element('', '&', false, this._index, this._fileInfo); var sels = [new Selector([el], null, null, this._index, this._fileInfo)]; sels[0].mediaEmpty = true; return sels; }; Selector.prototype.match = function (other) { var elements = this.elements; var len = elements.length; var olen; var i; other = other.mixinElements(); olen = other.length; if (olen === 0 || len < olen) { return 0; } else { for (i = 0; i < olen; i++) { if (elements[i].value !== other[i]) { return 0; } } } return olen; // return number of matched elements }; Selector.prototype.mixinElements = function () { if (this.mixinElements_) { return this.mixinElements_; } 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 = []; } return (this.mixinElements_ = 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); var elements = this.elements; var 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; var element; if ((!context || !context.firstSelector) && this.elements[0].combinator.value === '') { output.add(' ', this.fileInfo(), this.getIndex()); } for (i = 0; i < this.elements.length; i++) { element = this.elements[i]; element.genCSS(context, output); } }; Selector.prototype.getIsOutput = function () { return this.evaldCondition; }; return Selector; }(Node)); Selector.prototype.type = 'Selector'; var Value = /** @class */ (function (_super) { tslib.__extends(Value, _super); function Value(value) { var _this = _super.call(this) || this; if (!value) { throw new Error('Value requires an array argument'); } if (!Array.isArray(value)) { _this.value = [value]; } else { _this.value = value; } return _this; } 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) ? ',' : ', '); } } }; return Value; }(Node)); Value.prototype.type = 'Value'; var Keyword = /** @class */ (function (_super) { tslib.__extends(Keyword, _super); function Keyword(value) { var _this = _super.call(this) || this; _this.value = value; return _this; } Keyword.prototype.genCSS = function (context, output) { if (this.value === '%') { throw { type: 'Syntax', message: 'Invalid % without number' }; } output.add(this.value); }; return Keyword; }(Node)); Keyword.prototype.type = 'Keyword'; Keyword.True = new Keyword('true'); Keyword.False = new Keyword('false'); var Anonymous = /** @class */ (function (_super) { tslib.__extends(Anonymous, _super); function Anonymous(value, index, currentFileInfo, mapLines, rulesetLike, visibilityInfo) { var _this = _super.call(this) || this; _this.value = value; _this._index = index; _this._fileInfo = currentFileInfo; _this.mapLines = mapLines; _this.rulesetLike = (typeof rulesetLike === 'undefined') ? false : rulesetLike; _this.allowRoot = true; _this.copyVisibilityInfo(visibilityInfo); return _this; } Anonymous.prototype.eval = function () { return new Anonymous(this.value, this._index, this._fileInfo, this.mapLines, this.rulesetLike, this.visibilityInfo()); }; 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) { this.nodeVisible = Boolean(this.value); if (this.nodeVisible) { output.add(this.value, this._fileInfo, this._index, this.mapLines); } }; return Anonymous; }(Node)); Anonymous.prototype.type = 'Anonymous'; var MATH = Math$1; var Declaration = /** @class */ (function (_super) { tslib.__extends(Declaration, _super); function Declaration(name, value, important, merge, index, currentFileInfo, inline, variable) { var _this = _super.call(this) || this; _this.name = name; _this.value = (value instanceof Node) ? value : new Value([value ? new Anonymous(value) : null]); _this.important = important ? " " + important.trim() : ''; _this.merge = merge; _this._index = index; _this._fileInfo = currentFileInfo; _this.inline = inline || false; _this.variable = (variable !== undefined) ? variable : (name.charAt && (name.charAt(0) === '@')); _this.allowRoot = true; _this.setParent(_this.value, _this); return _this; } Declaration.prototype.genCSS = function (context, output) { output.add(this.name + (context.compress ? ':' : ': '), this.fileInfo(), this.getIndex()); try { this.value.genCSS(context, output); } catch (e) { e.index = this._index; e.filename = this._fileInfo.filename; throw e; } output.add(this.important + ((this.inline || (context.lastRule && context.compress)) ? '' : ';'), this._fileInfo, this._index); }; Declaration.prototype.eval = function (context) { var mathBypass = false; var prevMath; var name = this.name; var evaldValue; var 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 } // @todo remove when parens-division is default if (name === 'font' && context.math === MATH.ALWAYS) { mathBypass = true; prevMath = context.math; context.math = MATH.PARENS_DIVISION; } try { context.importantScope.push({}); evaldValue = this.value.eval(context); if (!this.variable && evaldValue.type === 'DetachedRuleset') { throw { message: 'Rulesets cannot be evaluated on a property.', index: this.getIndex(), filename: this.fileInfo().filename }; } var important = this.important; var importantResult = context.importantScope.pop(); if (!important && importantResult.important) { important = importantResult.important; } return new Declaration(name, evaldValue, important, this.merge, this.getIndex(), this.fileInfo(), this.inline, variable); } catch (e) { if (typeof e.index !== 'number') { e.index = this.getIndex(); e.filename = this.fileInfo().filename; } throw e; } finally { if (mathBypass) { context.math = prevMath; } } }; Declaration.prototype.makeImportant = function () { return new Declaration(this.name, this.value, '!important', this.merge, this.getIndex(), this.fileInfo(), this.inline); }; return Declaration; }(Node)); function evalName(context, name) { var value = ''; var i; var n = name.length; var output = { add: function (s) { value += s; } }; for (i = 0; i < n; i++) { name[i].eval(context).genCSS(context, output); } return value; } Declaration.prototype.type = 'Declaration'; var debugInfo = function (context, ctx, lineSeparator) { 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) + (lineSeparator || '') + debugInfo.asMediaQuery(ctx); break; } } return result; }; debugInfo.asComment = function (ctx) { return ctx.debugInfo ? "/* line " + ctx.debugInfo.lineNumber + ", " + ctx.debugInfo.fileName + " */\n" : ''; }; debugInfo.asMediaQuery = function (ctx) { if (!ctx.debugInfo) { return ''; } var filenameWithProtocol = ctx.debugInfo.fileName; if (!/^[a-z]+:\/\//i.test(filenameWithProtocol)) { filenameWithProtocol = "file://" + filenameWithProtocol; } return "@media -sass-debug-info{filename{font-family:" + filenameWithProtocol.replace(/([.:\/\\])/g, function (a) { if (a == '\\') { a = '\/'; } return "\\" + a; }) + "}line{font-family:\\00003" + ctx.debugInfo.lineNumber + "}}\n"; }; var Comment = /** @class */ (function (_super) { tslib.__extends(Comment, _super); function Comment(value, isLineComment, index, currentFileInfo) { var _this = _super.call(this) || this; _this.value = value; _this.isLineComment = isLineComment; _this._index = index; _this._fileInfo = currentFileInfo; _this.allowRoot = true; return _this; } Comment.prototype.genCSS = function (context, output) { if (this.debugInfo) { output.add(debugInfo(context, this), this.fileInfo(), this.getIndex()); } output.add(this.value); }; Comment.prototype.isSilent = function (context) { var isCompressed = context.compress && this.value[2] !== '!'; return this.isLineComment || isCompressed; }; return Comment; }(Node)); Comment.prototype.type = 'Comment'; var contexts = {}; var copyFromOriginal = function copyFromOriginal(original, destination, propertiesToCopy) { if (!original) { return; } for (var i_1 = 0; i_1 < propertiesToCopy.length; i_1++) { if (original.hasOwnProperty(propertiesToCopy[i_1])) { destination[propertiesToCopy[i_1]] = original[propertiesToCopy[i_1]]; } } }; /* parse is used whilst parsing */ var parseCopyProperties = [ // options 'paths', 'rewriteUrls', 'rootpath', 'strictImports', 'insecure', 'dumpLineNumbers', 'compress', 'syncImport', 'chunkInput', 'mime', 'useFileCache', // context 'processImports', // 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', 'compress', 'math', 'strictUnits', 'sourceMap', 'importMultiple', 'urlArgs', 'javascriptEnabled', 'pluginManager', 'importantScope', 'rewriteUrls' // option - whether to adjust URL's to be relative ]; function isPathRelative(path) { return !/^(?:[a-z-]+:|\/|#)/i.test(path); } function isPathLocalRelative(path) { return path.charAt(0) === '.'; } contexts.Eval = /** @class */ (function () { function Eval(options, frames) { copyFromOriginal(options, this, evalCopyProperties); if (typeof this.paths === 'string') { this.paths = [this.paths]; } this.frames = frames || []; this.importantScope = this.importantScope || []; this.inCalc = false; this.mathOn = true; } Eval.prototype.enterCalc = function () { if (!this.calcStack) { this.calcStack = []; } this.calcStack.push(true); this.inCalc = true; }; Eval.prototype.exitCalc = function () { this.calcStack.pop(); if (!this.calcStack.length) { this.inCalc = false; } }; Eval.prototype.inParenthesis = function () { if (!this.parensStack) { this.parensStack = []; } this.parensStack.push(true); }; Eval.prototype.outOfParenthesis = function () { this.parensStack.pop(); }; Eval.prototype.isMathOn = function (op) { if (!this.mathOn) { return false; } if (op === '/' && this.math !== Math$1.ALWAYS && (!this.parensStack || !this.parensStack.length)) { return false; } if (this.math > Math$1.PARENS_DIVISION) { return this.parensStack && this.parensStack.length; } return true; }; Eval.prototype.pathRequiresRewrite = function (path) { var isRelative = this.rewriteUrls === RewriteUrls.LOCAL ? isPathLocalRelative : isPathRelative; return isRelative(path); }; Eval.prototype.rewritePath = function (path, rootpath) { var newPath; rootpath = rootpath || ''; newPath = this.normalizePath(rootpath + path); // If a path was explicit relative and the rootpath was not an absolute path // we must ensure that the new path is also explicit relative. if (isPathLocalRelative(path) && isPathRelative(rootpath) && isPathLocalRelative(newPath) === false) { newPath = "./" + newPath; } return newPath; }; Eval.prototype.normalizePath = function (path) { var segments = path.split('/').reverse(); var 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('/'); }; return Eval; }()); function makeRegistry(base) { return { _data: {}, add: function (name, func) { // precautionary case conversion, as later querying of // the registry by function-caller uses lower case as well. name = name.toLowerCase(); if (this._data.hasOwnProperty(name)) ; this._data[name] = func; }, addMultiple: function (functions) { var _this = this; Object.keys(functions).forEach(function (name) { _this.add(name, functions[name]); }); }, get: function (name) { return this._data[name] || (base && base.get(name)); }, getLocalFunctions: function () { return this._data; }, inherit: function () { return makeRegistry(this); }, create: function (base) { return makeRegistry(base); } }; } var functionRegistry = makeRegistry(null); var defaultFunc = { eval: function () { var v = this.value_; var 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; } }; var Ruleset = /** @class */ (function (_super) { tslib.__extends(Ruleset, _super); function Ruleset(selectors, rules, strictImports, visibilityInfo) { var _this = _super.call(this) || this; _this.selectors = selectors; _this.rules = rules; _this._lookups = {}; _this._variables = null; _this._properties = null; _this.strictImports = strictImports; _this.copyVisibilityInfo(visibilityInfo); _this.allowRoot = true; _this.setParent(_this.selectors, _this); _this.setParent(_this.rules, _this); return _this; } Ruleset.prototype.isRulesetLike = function () { return true; }; Ruleset.prototype.accept = function (visitor) { if (this.paths) { 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 selectors; var selCnt; var selector; var i; var hasVariable; var hasOnePassingSelector = false; if (this.selectors && (selCnt = this.selectors.length)) { selectors = new Array(selCnt); defaultFunc.error({ type: 'Syntax', message: 'it is currently only allowed in parametric mixin guards,' }); for (i = 0; i < selCnt; i++) { selector = this.selectors[i].eval(context); for (var j = 0; j < selector.elements.length; j++) { if (selector.elements[j].isVariable) { hasVariable = true; break; } } selectors[i] = selector; if (selector.evaldCondition) { hasOnePassingSelector = true; } } if (hasVariable) { var toParseSelectors = new Array(selCnt); for (i = 0; i < selCnt; i++) { selector = selectors[i]; toParseSelectors[i] = selector.toCSS(context); } this.parse.parseNode(toParseSelectors.join(','), ["selectors"], selectors[0].getIndex(), selectors[0].fileInfo(), function (err, result) { if (result) { selectors = flattenArray(result); } }); } defaultFunc.reset(); } else { hasOnePassingSelector = true; } var rules = this.rules ? copyArray(this.rules) : null; var ruleset = new Ruleset(selectors, rules, this.strictImports, this.visibilityInfo()); var rule; var 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; } // inherit a function registry from the frames stack when possible; // otherwise from the global registry ruleset.functionRegistry = (function (frames) { var i = 0; var n = frames.length; var found; for (; i !== n; ++i) { found = frames[i].functionRegistry; if (found) { return found; } } return functionRegistry; })(context.frames).inherit(); // 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; for (i = 0; (rule = rsRules[i]); i++) { if (rule.evalFirst) { rsRules[i] = rule.eval(context); } } var mediaBlockCount = (context.mediaBlocks && context.mediaBlocks.length) || 0; // Evaluate mixin calls. for (i = 0; (rule = rsRules[i]); i++) { if (rule.type === 'MixinCall') { /* jshint loopfunc:true */ rules = rule.eval(context).filter(function (r) { if ((r instanceof Declaration) && 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)); i += rules.length - 1; ruleset.resetCache(); } else if (rule.type === 'VariableCall') { /* jshint loopfunc:true */ rules = rule.eval(context).rules.filter(function (r) { if ((r instanceof Declaration) && r.variable) { // do not pollute the scope at all return false; } return true; }); rsRules.splice.apply(rsRules, [i, 1].concat(rules)); i += rules.length - 1; ruleset.resetCache(); } } // Evaluate everything else for (i = 0; (rule = rsRules[i]); i++) { if (!rule.evalFirst) { rsRules[i] = rule = rule.eval ? rule.eval(context) : rule; } } // Evaluate everything else for (i = 0; (rule = rsRules[i]); 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] && rule.selectors[0].isJustParentSelector()) { rsRules.splice(i--, 1); for (var j = 0; (subRule = rule.rules[j]); j++) { if (subRule instanceof Node) { subRule.copyVisibilityInfo(rule.visibilityInfo()); if (!(subRule instanceof Declaration) || !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; var i; var 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 || importRules.length === 0)) { rules.splice.apply(rules, [i, 1].concat(importRules)); i += importRules.length - 1; } else { rules.splice(i, 1, importRules); } this.resetCache(); } } }; Ruleset.prototype.makeImportant = function () { var result = new Ruleset(this.selectors, this.rules.map(function (r) { if (r.makeImportant) { return r.makeImportant(); } else { return r; } }), this.strictImports, this.visibilityInfo()); return result; }; 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._properties = null; this._lookups = {}; }; Ruleset.prototype.variables = function () { if (!this._variables) { this._variables = !this.rules ? {} : this.rules.reduce(function (hash, r) { if (r instanceof Declaration && r.variable === true) { hash[r.name] = r; } // when evaluating variables in an import statement, imports have not been eval'd // so we need to go inside import statements. // guard against root being a string (in the case of inlined less) if (r.type === 'Import' && r.root && r.root.variables) { var vars = r.root.variables(); for (var name_1 in vars) { if (vars.hasOwnProperty(name_1)) { hash[name_1] = r.root.variable(name_1); } } } return hash; }, {}); } return this._variables; }; Ruleset.prototype.properties = function () { if (!this._properties) { this._properties = !this.rules ? {} : this.rules.reduce(function (hash, r) { if (r instanceof Declaration && r.variable !== true) { var name_2 = (r.name.length === 1) && (r.name[0] instanceof Keyword) ? r.name[0].value : r.name; // Properties don't overwrite as they can merge if (!hash["$" + name_2]) { hash["$" + name_2] = [r]; } else { hash["$" + name_2].push(r); } } return hash; }, {}); } return this._properties; }; Ruleset.prototype.variable = function (name) { var decl = this.variables()[name]; if (decl) { return this.parseValue(decl); } }; Ruleset.prototype.property = function (name) { var decl = this.properties()[name]; if (decl) { return this.parseValue(decl); } }; Ruleset.prototype.lastDeclaration = function () { for (var i_1 = this.rules.length; i_1 > 0; i_1--) { var decl = this.rules[i_1 - 1]; if (decl instanceof Declaration) { return this.parseValue(decl); } } }; Ruleset.prototype.parseValue = function (toParse) { var self = this; function transformDeclaration(decl) { if (decl.value instanceof Anonymous && !decl.parsed) { if (typeof decl.value.value === 'string') { this.parse.parseNode(decl.value.value, ['value', 'important'], decl.value.getIndex(), decl.fileInfo(), function (err, result) { if (err) { decl.parsed = true; } if (result) { decl.value = result[0]; decl.important = result[1] || ''; decl.parsed = true; } }); } else { decl.parsed = true; } return decl; } else { return decl; } } if (!Array.isArray(toParse)) { return transformDeclaration.call(self, toParse); } else { var nodes_1 = []; toParse.forEach(function (n) { nodes_1.push(transformDeclaration.call(self, n)); }); return nodes_1; } }; Ruleset.prototype.rulesets = function () { if (!this.rules) { return []; } var filtRules = []; var rules = this.rules; var i; var rule; for (i = 0; (rule = rules[i]); 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]; } this.setParent(rule, this); }; Ruleset.prototype.find = function (selector, self, filter) { if (self === void 0) { self = this; } var rules = []; var match; var foundMixins; var 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_2 = 0; i_2 < foundMixins.length; ++i_2) { foundMixins[i_2].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; var j; var charsetRuleNodes = []; var ruleNodes = []; var // Line number debugging debugInfo$1; var rule; var path; context.tabLevel = (context.tabLevel || 0); if (!this.root) { context.tabLevel++; } var tabRuleStr = context.compress ? '' : Array(context.tabLevel + 1).join(' '); var tabSetStr = context.compress ? '' : Array(context.tabLevel).join(' '); var sep; var charsetNodeIndex = 0; var importNodeIndex = 0; for (i = 0; (rule = this.rules[i]); i++) { if (rule instanceof Comment) { if (importNodeIndex === i) { importNodeIndex++; } ruleNodes.push(rule); } else if (rule.isCharset && rule.isCharset()) { ruleNodes.splice(charsetNodeIndex, 0, rule); charsetNodeIndex++; importNodeIndex++; } else if (rule.type === 'Import') { ruleNodes.splice(importNodeIndex, 0, rule); importNodeIndex++; } 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$1 = debugInfo(context, this, tabSetStr); if (debugInfo$1) { output.add(debugInfo$1); output.add(tabSetStr); } var paths = this.paths; var pathCnt = paths.length; var pathSubCnt = void 0; 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; (rule = ruleNodes[i]); i++) { if (i + 1 === ruleNodes.length) { context.lastRule = true; } var currentLastRule = context.lastRule; if (rule.isRulesetLike(rule)) { context.lastRule = false; } if (rule.genCSS) { rule.genCSS(context, output); } else if (rule.value) { output.add(rule.value.toString()); } context.lastRule = currentLastRule; if (!context.lastRule && rule.isVisible()) { output.add(context.compress ? '' : ("\n" + tabRuleStr)); } else { context.lastRule = false; } } if (!this.root) { output.add((context.compress ? '}' : "\n" + tabSetStr + "}")); context.tabLevel--; } if (!output.isEmpty() && !context.compress && this.firstRoot) { output.add('\n'); } }; 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) { function createParenthesis(elementsToPak, originalElement) { var replacementParen; var j; if (elementsToPak.length === 0) { replacementParen = new Paren(elementsToPak[0]); } else { var insideParent = new Array(elementsToPak.length); for (j = 0; j < elementsToPak.length; j++) { insideParent[j] = new Element(null, elementsToPak[j], originalElement.isVariable, originalElement._index, originalElement._fileInfo); } replacementParen = new Paren(new Selector(insideParent)); } return replacementParen; } function createSelector(containedElement, originalElement) { var element; var selector; element = new Element(null, containedElement, originalElement.isVariable, originalElement._index, originalElement._fileInfo); selector = new Selector([element]); return selector; } // joins selector path from `beginningPath` with selector path in `addPath` // `replacedElement` contains element that is being replaced by `addPath` // returns concatenated path function addReplacementIntoPath(beginningPath, addPath, replacedElement, originalSelector) { var newSelectorPath; var lastSelector; var newJoinedSelector; // our new selector path newSelectorPath = []; // 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 (beginningPath.length > 0) { newSelectorPath = copyArray(beginningPath); lastSelector = newSelectorPath.pop(); newJoinedSelector = originalSelector.createDerived(copyArray(lastSelector.elements)); } else { newJoinedSelector = originalSelector.createDerived([]); } if (addPath.length > 0) { // /deep/ is a CSS4 selector - (removed, so should deprecate) // 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 = replacedElement.combinator; var parentEl = addPath[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, replacedElement.isVariable, replacedElement._index, replacedElement._fileInfo)); newJoinedSelector.elements = newJoinedSelector.elements.concat(addPath[0].elements.slice(1)); } // now add the joined selector - but only if it is not empty if (newJoinedSelector.elements.length !== 0) { newSelectorPath.push(newJoinedSelector); } // put together the parent selectors after the join (e.g. the rest of the parent) if (addPath.length > 1) { var restOfPath = addPath.slice(1); restOfPath = restOfPath.map(function (selector) { return selector.createDerived(selector.elements, []); }); newSelectorPath = newSelectorPath.concat(restOfPath); } return newSelectorPath; } // joins selector path from `beginningPath` with every selector path in `addPaths` array // `replacedElement` contains element that is being replaced by `addPath` // returns array with all concatenated paths function addAllReplacementsIntoPath(beginningPath, addPaths, replacedElement, originalSelector, result) { var j; for (j = 0; j < beginningPath.length; j++) { var newSelectorPath = addReplacementIntoPath(beginningPath[j], addPaths, replacedElement, originalSelector); result.push(newSelectorPath); } return result; } function mergeElementsOnToSelectors(elements, selectors) { var i; var sel; if (elements.length === 0) { return; } if (selectors.length === 0) { selectors.push([new Selector(elements)]); return; } for (i = 0; (sel = selectors[i]); 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)); } } } // replace all parent selectors inside `inSelector` by content of `context` array // resulting selectors are returned inside `paths` array // returns true if `inSelector` contained at least one parent selector function replaceParentSelector(paths, context, inSelector) { // The paths are [[Selector]] // The first list is a list of comma separated selectors // The inner list is a list of inheritance separated selectors // e.g. // .a, .b { // .c { // } // } // == [[.a] [.c]] [[.b] [.c]] // var i; var j; var k; var currentElements; var newSelectors; var selectorsMultiplied; var sel; var el; var hadParentSelector = false; var length; var lastSelector; function findNestedSelector(element) { var maybeSelector; if (!(element.value instanceof Paren)) { return null; } maybeSelector = element.value.value; if (!(maybeSelector instanceof Selector)) { return null; } return maybeSelector; } // 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; (el = inSelector.elements[i]); i++) { // non parent reference elements just get added if (el.value !== '&') { var nestedSelector = findNestedSelector(el); if (nestedSelector != null) { // merge the current list of non parent selector elements // on to the current list of selectors to add mergeElementsOnToSelectors(currentElements, newSelectors); var nestedPaths = []; var replaced = void 0; var replacedNewSelectors = []; replaced = replaceParentSelector(nestedPaths, context, nestedSelector); hadParentSelector = hadParentSelector || replaced; // the nestedPaths array should have only one member - replaceParentSelector does not multiply selectors for (k = 0; k < nestedPaths.length; k++) { var replacementSelector = createSelector(createParenthesis(nestedPaths[k], el), el); addAllReplacementsIntoPath(newSelectors, [replacementSelector], el, inSelector, replacedNewSelectors); } newSelectors = replacedNewSelectors; currentElements = []; } else { currentElements.push(el); } } else { hadParentSelector = true; // 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 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.push(new Element(el.combinator, '', el.isVariable, el._index, el._fileInfo)); } selectorsMultiplied.push(sel); } else { // and the parent selectors for (k = 0; k < context.length; k++) { // We need to put the current selectors // then join the last selector's elements on to the parents selectors var newSelectorPath = addReplacementIntoPath(sel, context[k], el, inSelector); // 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 mergeElementsOnToSelectors(currentElements, newSelectors); for (i = 0; i < newSelectors.length; i++) { length = newSelectors[i].length; if (length > 0) { paths.push(newSelectors[i]); lastSelector = newSelectors[i][length - 1]; newSelectors[i][length - 1] = lastSelector.createDerived(lastSelector.elements, inSelector.extendList); } } return hadParentSelector; } function deriveSelector(visibilityInfo, deriveFrom) { var newSelector = deriveFrom.createDerived(deriveFrom.elements, deriveFrom.extendList, deriveFrom.evaldCondition); newSelector.copyVisibilityInfo(visibilityInfo); return newSelector; } // joinSelector code follows var i; var newPaths; var hadParentSelector; newPaths = []; hadParentSelector = replaceParentSelector(newPaths, context, selector); if (!hadParentSelector) { if (context.length > 0) { newPaths = []; for (i = 0; i < context.length; i++) { var concatenated = context[i].map(deriveSelector.bind(this, selector.visibilityInfo())); concatenated.push(selector); newPaths.push(concatenated); } } else { newPaths = [[selector]]; } } for (i = 0; i < newPaths.length; i++) { paths.push(newPaths[i]); } }; return Ruleset; }(Node)); Ruleset.prototype.type = 'Ruleset'; Ruleset.prototype.isRuleset = true; var AtRule = /** @class */ (function (_super) { tslib.__extends(AtRule, _super); function AtRule(name, value, rules, index, currentFileInfo, debugInfo, isRooted, visibilityInfo) { var _this = _super.call(this) || this; var i; _this.name = name; _this.value = (value instanceof Node) ? value : (value ? new Anonymous(value) : value); if (rules) { if (Array.isArray(rules)) { _this.rules = rules; } else { _this.rules = [rules]; _this.rules[0].selectors = (new Selector([], null, null, index, currentFileInfo)).createEmptySelectors(); } for (i = 0; i < _this.rules.length; i++) { _this.rules[i].allowImports = true; } _this.setParent(_this.rules, _this); } _this._index = index; _this._fileInfo = currentFileInfo; _this.debugInfo = debugInfo; _this.isRooted = isRooted || false; _this.copyVisibilityInfo(visibilityInfo); _this.allowRoot = true; return _this; } AtRule.prototype.accept = function (visitor) { var value = this.value; var rules = this.rules; if (rules) { this.rules = visitor.visitArray(rules); } if (value) { this.value = visitor.visit(value); } }; AtRule.prototype.isRulesetLike = function () { return this.rules || !this.isCharset(); }; AtRule.prototype.isCharset = function () { return '@charset' === this.name; }; AtRule.prototype.genCSS = function (context, output) { var value = this.value; var rules = this.rules; output.add(this.name, this.fileInfo(), this.getIndex()); if (value) { output.add(' '); value.genCSS(context, output); } if (rules) { this.outputRuleset(context, output, rules); } else { output.add(';'); } }; AtRule.prototype.eval = function (context) { var mediaPathBackup; var mediaBlocksBackup; var value = this.value; var rules = this.rules; // media stored inside other atrule should not bubble over it // backpup media bubbling information mediaPathBackup = context.mediaPath; mediaBlocksBackup = context.mediaBlocks; // deleted media bubbling information context.mediaPath = []; context.mediaBlocks = []; if (value) { value = value.eval(context); } if (rules) { // assuming that there is only one rule at this point - that is how parser constructs the rule rules = [rules[0].eval(context)]; rules[0].root = true; } // restore media bubbling information context.mediaPath = mediaPathBackup; context.mediaBlocks = mediaBlocksBackup; return new AtRule(this.name, value, rules, this.getIndex(), this.fileInfo(), this.debugInfo, this.isRooted, this.visibilityInfo()); }; AtRule.prototype.variable = function (name) { if (this.rules) { // assuming that there is only one rule at this point - that is how parser constructs the rule return Ruleset.prototype.variable.call(this.rules[0], name); } }; AtRule.prototype.find = function () { var args = []; for (var _i = 0; _i < arguments.length; _i++) { args[_i] = arguments[_i]; } if (this.rules) { // assuming that there is only one rule at this point - that is how parser constructs the rule return Ruleset.prototype.find.apply(this.rules[0], args); } }; AtRule.prototype.rulesets = function () { if (this.rules) { // assuming that there is only one rule at this point - that is how parser constructs the rule return Ruleset.prototype.rulesets.apply(this.rules[0]); } }; AtRule.prototype.outputRuleset = function (context, output, rules) { var ruleCnt = rules.length; var 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(' '); var 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--; }; return AtRule; }(Node)); AtRule.prototype.type = 'AtRule'; var DetachedRuleset = /** @class */ (function (_super) { tslib.__extends(DetachedRuleset, _super); function DetachedRuleset(ruleset, frames) { var _this = _super.call(this) || this; _this.ruleset = ruleset; _this.frames = frames; _this.setParent(_this.ruleset, _this); return _this; } DetachedRuleset.prototype.accept = function (visitor) { this.ruleset = visitor.visit(this.ruleset); }; DetachedRuleset.prototype.eval = function (context) { var frames = this.frames || copyArray(context.frames); 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); }; return DetachedRuleset; }(Node)); DetachedRuleset.prototype.type = 'DetachedRuleset'; DetachedRuleset.prototype.evalFirst = true; var Unit = /** @class */ (function (_super) { tslib.__extends(Unit, _super); function Unit(numerator, denominator, backupUnit) { var _this = _super.call(this) || this; _this.numerator = numerator ? copyArray(numerator).sort() : []; _this.denominator = denominator ? copyArray(denominator).sort() : []; if (backupUnit) { _this.backupUnit = backupUnit; } else if (numerator && numerator.length) { _this.backupUnit = numerator[0]; } return _this; } Unit.prototype.clone = function () { return new Unit(copyArray(this.numerator), copyArray(this.denominator), this.backupUnit); }; Unit.prototype.genCSS = function (context, output) { // Dimension checks the unit is singular and throws an error if in strict math mode. var strictUnits = context && context.strictUnits; if (this.numerator.length === 1) { output.add(this.numerator[0]); // the ideal situation } else if (!strictUnits && this.backupUnit) { output.add(this.backupUnit); } else if (!strictUnits && this.denominator.length) { output.add(this.denominator[0]); } }; Unit.prototype.toString = function () { var i; var 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 RegExp('^(px|em|ex|ch|rem|in|cm|mm|pc|pt|ex|vw|vh|vmin|vmax)$', 'gi').test(this.toCSS()); }; 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; var result = {}; var mapUnit; var groupName; mapUnit = function (atomicUnit) { /* jshint loopfunc:true */ if (group.hasOwnProperty(atomicUnit) && !result[groupName]) { result[groupName] = atomicUnit; } return atomicUnit; }; for (groupName in unitConversions) { if (unitConversions.hasOwnProperty(groupName)) { group = unitConversions[groupName]; this.map(mapUnit); } } return result; }; Unit.prototype.cancel = function () { var counter = {}; var atomicUnit; var i; for (i = 0; i < this.numerator.length; i++) { atomicUnit = this.numerator[i]; counter[atomicUnit] = (counter[atomicUnit] || 0) + 1; } for (i = 0; i < this.denominator.length; i++) { atomicUnit = this.denominator[i]; 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); } } } } this.numerator.sort(); this.denominator.sort(); }; return Unit; }(Node)); Unit.prototype.type = 'Unit'; // // A number with a unit // var Dimension = /** @class */ (function (_super) { tslib.__extends(Dimension, _super); function Dimension(value, unit) { var _this = _super.call(this) || this; _this.value = parseFloat(value); if (isNaN(_this.value)) { throw new Error('Dimension is not a number.'); } _this.unit = (unit && unit instanceof Unit) ? unit : new Unit(unit ? [unit] : undefined); _this.setParent(_this.unit, _this); return _this; } 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); var 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); var unit = this.unit.clone(); if (op === '+' || op === '-') { if (unit.numerator.length === 0 && unit.denominator.length === 0) { unit = other.unit.clone(); if (this.unit.backupUnit) { unit.backupUnit = this.unit.backupUnit; } } else if (other.unit.numerator.length === 0 && unit.denominator.length === 0) ; 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; var 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; var unit = this.unit.clone(); var i; var groupName; var group; var targetUnit; var derivedConversions = {}; var 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); }; return Dimension; }(Node)); Dimension.prototype.type = 'Dimension'; var MATH$1 = Math$1; var Operation = /** @class */ (function (_super) { tslib.__extends(Operation, _super); function Operation(op, operands, isSpaced) { var _this = _super.call(this) || this; _this.op = op.trim(); _this.operands = operands; _this.isSpaced = isSpaced; return _this; } Operation.prototype.accept = function (visitor) { this.operands = visitor.visitArray(this.operands); }; Operation.prototype.eval = function (context) { var a = this.operands[0].eval(context); var b = this.operands[1].eval(context); var op; if (context.isMathOn(this.op)) { op = this.op === './' ? '/' : this.op; if (a instanceof Dimension && b instanceof Color) { a = a.toColor(); } if (b instanceof Dimension && a instanceof Color) { b = b.toColor(); } if (!a.operate) { if (a instanceof Operation && a.op === '/' && context.math === MATH$1.PARENS_DIVISION) { return new Operation(this.op, [a, b], this.isSpaced); } throw { type: 'Operation', message: 'Operation on an invalid type' }; } return a.operate(context, 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); }; return Operation; }(Node)); Operation.prototype.type = 'Operation'; var MATH$2 = Math$1; var Expression = /** @class */ (function (_super) { tslib.__extends(Expression, _super); function Expression(value, noSpacing) { var _this = _super.call(this) || this; _this.value = value; _this.noSpacing = noSpacing; if (!value) { throw new Error('Expression requires an array parameter'); } return _this; } Expression.prototype.accept = function (visitor) { this.value = visitor.visitArray(this.value); }; Expression.prototype.eval = function (context) { var returnValue; var mathOn = context.isMathOn(); var inParenthesis = this.parens && (context.math !== MATH$2.STRICT_LEGACY || !this.parensInOp); var doubleParen = false; if (inParenthesis) { context.inParenthesis(); } if (this.value.length > 1) { returnValue = new Expression(this.value.map(function (e) { if (!e.eval) { return e; } return e.eval(context); }), this.noSpacing); } else if (this.value.length === 1) { if (this.value[0].parens && !this.value[0].parensInOp && !context.inCalc) { doubleParen = true; } returnValue = this.value[0].eval(context); } else { returnValue = this; } if (inParenthesis) { context.outOfParenthesis(); } if (this.parens && this.parensInOp && !mathOn && !doubleParen && (!(returnValue instanceof Dimension))) { returnValue = new Paren(returnValue); } return returnValue; }; Expression.prototype.genCSS = function (context, output) { for (var i_1 = 0; i_1 < this.value.length; i_1++) { this.value[i_1].genCSS(context, output); if (!this.noSpacing && i_1 + 1 < this.value.length) { output.add(' '); } } }; Expression.prototype.throwAwayComments = function () { this.value = this.value.filter(function (v) { return !(v instanceof Comment); }); }; return Expression; }(Node)); Expression.prototype.type = 'Expression'; var functionCaller = /** @class */ (function () { function functionCaller(name, context, index, currentFileInfo) { this.name = name.toLowerCase(); this.index = index; this.context = context; this.currentFileInfo = currentFileInfo; this.func = context.frames[0].functionRegistry.get(this.name); } functionCaller.prototype.isValid = function () { return Boolean(this.func); }; functionCaller.prototype.call = function (args) { // This code is terrible and should be replaced as per this issue... // https://github.com/less/less.js/issues/2477 if (Array.isArray(args)) { args = args.filter(function (item) { if (item.type === 'Comment') { return false; } return true; }) .map(function (item) { if (item.type === 'Expression') { var subNodes = item.value.filter(function (item) { if (item.type === 'Comment') { return false; } return true; }); if (subNodes.length === 1) { return subNodes[0]; } else { return new Expression(subNodes); } } return item; }); } return this.func.apply(this, args); }; return functionCaller; }()); // // A function call node. // var Call = /** @class */ (function (_super) { tslib.__extends(Call, _super); function Call(name, args, index, currentFileInfo) { var _this = _super.call(this) || this; _this.name = name; _this.args = args; _this.calc = name === 'calc'; _this._index = index; _this._fileInfo = currentFileInfo; return _this; } 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 the functionRegistry, // 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 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) { /** * Turn off math for calc(), and switch back on for evaluating nested functions */ var currentMathContext = context.mathOn; context.mathOn = !this.calc; if (this.calc || context.inCalc) { context.enterCalc(); } var args = this.args.map(function (a) { return a.eval(context); }); if (this.calc || context.inCalc) { context.exitCalc(); } context.mathOn = currentMathContext; var result; var funcCaller = new functionCaller(this.name, context, this.getIndex(), this.fileInfo()); if (funcCaller.isValid()) { try { result = funcCaller.call(args); } catch (e) { throw { type: e.type || 'Runtime', message: "error evaluating function `" + this.name + "`" + (e.message ? ": " + e.message : ''), index: this.getIndex(), filename: this.fileInfo().filename, line: e.lineNumber, column: e.columnNumber }; } if (result !== null && result !== undefined) { // Results that that are not nodes are cast as Anonymous nodes // Falsy values or booleans are returned as empty nodes if (!(result instanceof Node)) { if (!result || result === true) { result = new Anonymous(null); } else { result = new Anonymous(result.toString()); } } result._index = this._index; result._fileInfo = this._fileInfo; return result; } } return new Call(this.name, args, this.getIndex(), this.fileInfo()); }; Call.prototype.genCSS = function (context, output) { output.add(this.name + "(", this.fileInfo(), this.getIndex()); for (var i_1 = 0; i_1 < this.args.length; i_1++) { this.args[i_1].genCSS(context, output); if (i_1 + 1 < this.args.length) { output.add(', '); } } output.add(')'); }; return Call; }(Node)); Call.prototype.type = 'Call'; var Variable = /** @class */ (function (_super) { tslib.__extends(Variable, _super); function Variable(name, index, currentFileInfo) { var _this = _super.call(this) || this; _this.name = name; _this._index = index; _this._fileInfo = currentFileInfo; return _this; } Variable.prototype.eval = function (context) { var variable; var name = this.name; if (name.indexOf('@@') === 0) { name = "@" + new Variable(name.slice(1), this.getIndex(), this.fileInfo()).eval(context).value; } if (this.evaluating) { throw { type: 'Name', message: "Recursive variable definition for " + name, filename: this.fileInfo().filename, index: this.getIndex() }; } this.evaluating = true; variable = this.find(context.frames, function (frame) { var v = frame.variable(name); if (v) { if (v.important) { var importantScope = context.importantScope[context.importantScope.length - 1]; importantScope.important = v.important; } // If in calc, wrap vars in a function call to cascade evaluate args first if (context.inCalc) { return (new Call('_SELF', [v.value])).eval(context); } else { return v.value.eval(context); } } }); if (variable) { this.evaluating = false; return variable; } else { throw { type: 'Name', message: "variable " + name + " is undefined", filename: this.fileInfo().filename, index: this.getIndex() }; } }; Variable.prototype.find = function (obj, fun) { for (var i_1 = 0, r = void 0; i_1 < obj.length; i_1++) { r = fun.call(obj, obj[i_1]); if (r) { return r; } } return null; }; return Variable; }(Node)); Variable.prototype.type = 'Variable'; var Property = /** @class */ (function (_super) { tslib.__extends(Property, _super); function Property(name, index, currentFileInfo) { var _this = _super.call(this) || this; _this.name = name; _this._index = index; _this._fileInfo = currentFileInfo; return _this; } Property.prototype.eval = function (context) { var property; var name = this.name; // TODO: shorten this reference var mergeRules = context.pluginManager.less.visitors.ToCSSVisitor.prototype._mergeRules; if (this.evaluating) { throw { type: 'Name', message: "Recursive property reference for " + name, filename: this.fileInfo().filename, index: this.getIndex() }; } this.evaluating = true; property = this.find(context.frames, function (frame) { var v; var vArr = frame.property(name); if (vArr) { for (var i_1 = 0; i_1 < vArr.length; i_1++) { v = vArr[i_1]; vArr[i_1] = new Declaration(v.name, v.value, v.important, v.merge, v.index, v.currentFileInfo, v.inline, v.variable); } mergeRules(vArr); v = vArr[vArr.length - 1]; if (v.important) { var importantScope = context.importantScope[context.importantScope.length - 1]; importantScope.important = v.important; } v = v.value.eval(context); return v; } }); if (property) { this.evaluating = false; return property; } else { throw { type: 'Name', message: "Property '" + name + "' is undefined", filename: this.currentFileInfo.filename, index: this.index }; } }; Property.prototype.find = function (obj, fun) { for (var i_2 = 0, r = void 0; i_2 < obj.length; i_2++) { r = fun.call(obj, obj[i_2]); if (r) { return r; } } return null; }; return Property; }(Node)); Property.prototype.type = 'Property'; var Attribute = /** @class */ (function (_super) { tslib.__extends(Attribute, _super); function Attribute(key, op, value) { var _this = _super.call(this) || this; _this.key = key; _this.op = op; _this.value = value; return _this; } 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 + "]"; }; return Attribute; }(Node)); Attribute.prototype.type = 'Attribute'; var Quoted = /** @class */ (function (_super) { tslib.__extends(Quoted, _super); function Quoted(str, content, escaped, index, currentFileInfo) { var _this = _super.call(this) || this; _this.escaped = (escaped == null) ? true : escaped; _this.value = content || ''; _this.quote = str.charAt(0); _this._index = index; _this._fileInfo = currentFileInfo; _this.variableRegex = /@\{([\w-]+)\}/g; _this.propRegex = /\$\{([\w-]+)\}/g; _this.allowRoot = escaped; return _this; } Quoted.prototype.genCSS = function (context, output) { if (!this.escaped) { output.add(this.quote, this.fileInfo(), this.getIndex()); } output.add(this.value); if (!this.escaped) { output.add(this.quote); } }; Quoted.prototype.containsVariables = function () { return this.value.match(this.variableRegex); }; Quoted.prototype.eval = function (context) { var that = this; var value = this.value; var variableReplacement = function (_, name) { var v = new Variable("@" + name, that.getIndex(), that.fileInfo()).eval(context, true); return (v instanceof Quoted) ? v.value : v.toCSS(); }; var propertyReplacement = function (_, name) { var v = new Property("$" + name, that.getIndex(), that.fileInfo()).eval(context, true); return (v instanceof Quoted) ? v.value : v.toCSS(); }; function iterativeReplace(value, regexp, replacementFnc) { var evaluatedValue = value; do { value = evaluatedValue.toString(); evaluatedValue = value.replace(regexp, replacementFnc); } while (value !== evaluatedValue); return evaluatedValue; } value = iterativeReplace(value, this.variableRegex, variableReplacement); value = iterativeReplace(value, this.propRegex, propertyReplacement); return new Quoted(this.quote + value + this.quote, value, this.escaped, this.getIndex(), this.fileInfo()); }; 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; } }; return Quoted; }(Node)); Quoted.prototype.type = 'Quoted'; var URL = /** @class */ (function (_super) { tslib.__extends(URL, _super); function URL(val, index, currentFileInfo, isEvald) { var _this = _super.call(this) || this; _this.value = val; _this._index = index; _this._fileInfo = currentFileInfo; _this.isEvald = isEvald; return _this; } 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); var rootpath; if (!this.isEvald) { // Add the rootpath if the URL requires a rewrite rootpath = this.fileInfo() && this.fileInfo().rootpath; if (typeof rootpath === 'string' && typeof val.value === 'string' && context.pathRequiresRewrite(val.value)) { if (!val.quote) { rootpath = escapePath(rootpath); } val.value = context.rewritePath(val.value, rootpath); } else { 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.getIndex(), this.fileInfo(), true); }; return URL; }(Node)); URL.prototype.type = 'Url'; function escapePath(path) { return path.replace(/[\(\)'"\s]/g, function (match) { return "\\" + match; }); } var Media = /** @class */ (function (_super) { tslib.__extends(Media, _super); function Media(value, features, index, currentFileInfo, visibilityInfo) { var _this = _super.call(this) || this; _this._index = index; _this._fileInfo = currentFileInfo; var selectors = (new Selector([], null, null, _this._index, _this._fileInfo)).createEmptySelectors(); _this.features = new Value(features); _this.rules = [new Ruleset(selectors, value)]; _this.rules[0].allowImports = true; _this.copyVisibilityInfo(visibilityInfo); _this.allowRoot = true; _this.setParent(selectors, _this); _this.setParent(_this.features, _this); _this.setParent(_this.rules, _this); return _this; } Media.prototype.isRulesetLike = function () { return 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._fileInfo, 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._fileInfo, this.visibilityInfo()); if (this.debugInfo) { this.rules[0].debugInfo = this.debugInfo; media.debugInfo = this.debugInfo; } media.features = this.features.eval(context); context.mediaPath.push(media); context.mediaBlocks.push(media); this.rules[0].functionRegistry = context.frames[0].functionRegistry.inherit(); 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); }; Media.prototype.evalTop = function (context) { var result = this; // Render all dependent Media blocks. if (context.mediaBlocks.length > 1) { var selectors = (new Selector([], null, null, this.getIndex(), this.fileInfo())).createEmptySelectors(); result = new Ruleset(selectors, context.mediaBlocks); result.multiMedia = true; result.copyVisibilityInfo(this.visibilityInfo()); this.setParent(result, this); } delete context.mediaBlocks; delete context.mediaPath; return result; }; Media.prototype.evalNested = function (context) { var i; var value; var 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); })); this.setParent(this.features, this); // 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_1 = 0; i_1 < rest.length; i_1++) { for (var j = 0; j < arr[0].length; j++) { result.push([arr[0][j]].concat(rest[i_1])); } } return result; } }; Media.prototype.bubbleSelectors = function (selectors) { if (!selectors) { return; } this.rules = [new Ruleset(copyArray(selectors), [this.rules[0]])]; this.setParent(this.rules, this); }; return Media; }(AtRule)); Media.prototype.type = 'Media'; // // 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 = /** @class */ (function (_super) { tslib.__extends(Import, _super); function Import(path, features, options, index, currentFileInfo, visibilityInfo) { var _this = _super.call(this) || this; _this.options = options; _this._index = index; _this._fileInfo = currentFileInfo; _this.path = path; _this.features = features; _this.allowRoot = true; 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; } } _this.copyVisibilityInfo(visibilityInfo); _this.setParent(_this.features, _this); _this.setParent(_this.path, _this); return _this; } Import.prototype.accept = function (visitor) { if (this.features) { this.features = visitor.visit(this.features); } this.path = visitor.visit(this.path); if (!this.options.isPlugin && !this.options.inline && this.root) { this.root = visitor.visit(this.root); } }; Import.prototype.genCSS = function (context, output) { if (this.css && this.path._fileInfo.reference === undefined) { output.add('@import ', this._fileInfo, this._index); this.path.genCSS(context, output); if (this.features) { output.add(' '); this.features.genCSS(context, output); } output.add(';'); } }; Import.prototype.getPath = function () { return (this.path instanceof URL) ? this.path.value.value : this.path.value; }; Import.prototype.isVariableImport = function () { var path = this.path; if (path instanceof URL) { path = path.value; } if (path instanceof Quoted) { return path.containsVariables(); } return true; }; 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._fileInfo, this.visibilityInfo()); }; Import.prototype.evalPath = function (context) { var path = this.path.eval(context); var fileInfo = this._fileInfo; if (!(path instanceof URL)) { // Add the rootpath if the URL requires a rewrite var pathValue = path.value; if (fileInfo && pathValue && context.pathRequiresRewrite(pathValue)) { path.value = context.rewritePath(pathValue, fileInfo.rootpath); } else { path.value = context.normalizePath(path.value); } } return path; }; Import.prototype.eval = function (context) { var result = this.doEval(context); if (this.options.reference || this.blocksVisibility()) { if (result.length || result.length === 0) { result.forEach(function (node) { node.addVisibilityBlock(); }); } else { result.addVisibilityBlock(); } } return result; }; Import.prototype.doEval = function (context) { var ruleset; var registry; var features = this.features && this.features.eval(context); if (this.options.isPlugin) { if (this.root && this.root.eval) { try { this.root.eval(context); } catch (e) { e.message = 'Plugin error during evaluation'; throw new LessError(e, this.root.imports, this.root.filename); } } registry = context.frames[0] && context.frames[0].functionRegistry; if (registry && this.root && this.root.functions) { registry.addMultiple(this.root.functions); } return []; } 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, reference: this.path._fileInfo && this.path._fileInfo.reference }, 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, copyArray(this.root.rules)); ruleset.evalImports(context); return this.features ? new Media(ruleset.rules, this.features.value) : ruleset.rules; } }; return Import; }(Node)); Import.prototype.type = 'Import'; var JsEvalNode = /** @class */ (function (_super) { tslib.__extends(JsEvalNode, _super); function JsEvalNode() { return _super !== null && _super.apply(this, arguments) || this; } JsEvalNode.prototype.evaluateJavaScript = function (expression, context) { var result; var that = this; var evalContext = {}; if (!context.javascriptEnabled) { throw { message: 'Inline JavaScript is not enabled. Is it set in your options?', filename: this.fileInfo().filename, index: this.getIndex() }; } expression = expression.replace(/@\{([\w-]+)\}/g, function (_, name) { return that.jsify(new Variable("@" + name, that.getIndex(), that.fileInfo()).eval(context)); }); try { expression = new Function("return (" + expression + ")"); } catch (e) { throw { message: "JavaScript evaluation error: " + e.message + " from `" + expression + "`", filename: this.fileInfo().filename, index: this.getIndex() }; } 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.fileInfo().filename, index: this.getIndex() }; } 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(); } }; return JsEvalNode; }(Node)); var JavaScript = /** @class */ (function (_super) { tslib.__extends(JavaScript, _super); function JavaScript(string, escaped, index, currentFileInfo) { var _this = _super.call(this) || this; _this.escaped = escaped; _this.expression = string; _this._index = index; _this._fileInfo = currentFileInfo; return _this; } JavaScript.prototype.eval = function (context) { var result = this.evaluateJavaScript(this.expression, context); var type = typeof result; if (type === 'number' && !isNaN(result)) { return new Dimension(result); } else if (type === '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); } }; return JavaScript; }(JsEvalNode)); JavaScript.prototype.type = 'JavaScript'; var Assignment = /** @class */ (function (_super) { tslib.__extends(Assignment, _super); function Assignment(key, val) { var _this = _super.call(this) || this; _this.key = key; _this.value = val; return _this; } 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); } }; return Assignment; }(Node)); Assignment.prototype.type = 'Assignment'; var Condition = /** @class */ (function (_super) { tslib.__extends(Condition, _super); function Condition(op, l, r, i, negate) { var _this = _super.call(this) || this; _this.op = op.trim(); _this.lvalue = l; _this.rvalue = r; _this._index = i; _this.negate = negate; return _this; } 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; }; return Condition; }(Node)); Condition.prototype.type = 'Condition'; var UnicodeDescriptor = /** @class */ (function (_super) { tslib.__extends(UnicodeDescriptor, _super); function UnicodeDescriptor(value) { var _this = _super.call(this) || this; _this.value = value; return _this; } return UnicodeDescriptor; }(Node)); UnicodeDescriptor.prototype.type = 'UnicodeDescriptor'; var Negative = /** @class */ (function (_super) { tslib.__extends(Negative, _super); function Negative(node) { var _this = _super.call(this) || this; _this.value = node; return _this; } 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)); }; return Negative; }(Node)); Negative.prototype.type = 'Negative'; var Extend = /** @class */ (function (_super) { tslib.__extends(Extend, _super); function Extend(selector, option, index, currentFileInfo, visibilityInfo) { var _this = _super.call(this) || this; _this.selector = selector; _this.option = option; _this.object_id = Extend.next_id++; _this.parent_ids = [_this.object_id]; _this._index = index; _this._fileInfo = currentFileInfo; _this.copyVisibilityInfo(visibilityInfo); _this.allowRoot = true; switch (option) { case 'all': _this.allowBefore = true; _this.allowAfter = true; break; default: _this.allowBefore = false; _this.allowAfter = false; break; } _this.setParent(_this.selector, _this); return _this; } 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.getIndex(), this.fileInfo(), this.visibilityInfo()); }; Extend.prototype.clone = function (context) { return new Extend(this.selector, this.option, this.getIndex(), this.fileInfo(), this.visibilityInfo()); }; // it concatenates (joins) all selectors in selector array Extend.prototype.findSelfSelectors = function (selectors) { var selfElements = []; var i; var 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 = [new Selector(selfElements)]; this.selfSelectors[0].copyVisibilityInfo(this.visibilityInfo()); }; return Extend; }(Node)); Extend.next_id = 0; Extend.prototype.type = 'Extend'; var VariableCall = /** @class */ (function (_super) { tslib.__extends(VariableCall, _super); function VariableCall(variable, index, currentFileInfo) { var _this = _super.call(this) || this; _this.variable = variable; _this._index = index; _this._fileInfo = currentFileInfo; _this.allowRoot = true; return _this; } VariableCall.prototype.eval = function (context) { var rules; var detachedRuleset = new Variable(this.variable, this.getIndex(), this.fileInfo()).eval(context); var error = new LessError({ message: "Could not evaluate variable call " + this.variable }); if (!detachedRuleset.ruleset) { if (detachedRuleset.rules) { rules = detachedRuleset; } else if (Array.isArray(detachedRuleset)) { rules = new Ruleset('', detachedRuleset); } else if (Array.isArray(detachedRuleset.value)) { rules = new Ruleset('', detachedRuleset.value); } else { throw error; } detachedRuleset = new DetachedRuleset(rules); } if (detachedRuleset.ruleset) { return detachedRuleset.callEval(context); } throw error; }; return VariableCall; }(Node)); VariableCall.prototype.type = 'VariableCall'; var NamespaceValue = /** @class */ (function (_super) { tslib.__extends(NamespaceValue, _super); function NamespaceValue(ruleCall, lookups, index, fileInfo) { var _this = _super.call(this) || this; _this.value = ruleCall; _this.lookups = lookups; _this._index = index; _this._fileInfo = fileInfo; return _this; } NamespaceValue.prototype.eval = function (context) { var i; var name; var rules = this.value.eval(context); for (i = 0; i < this.lookups.length; i++) { name = this.lookups[i]; /** * Eval'd DRs return rulesets. * Eval'd mixins return rules, so let's make a ruleset if we need it. * We need to do this because of late parsing of values */ if (Array.isArray(rules)) { rules = new Ruleset([new Selector()], rules); } if (name === '') { rules = rules.lastDeclaration(); } else if (name.charAt(0) === '@') { if (name.charAt(1) === '@') { name = "@" + new Variable(name.substr(1)).eval(context).value; } if (rules.variables) { rules = rules.variable(name); } if (!rules) { throw { type: 'Name', message: "variable " + name + " not found", filename: this.fileInfo().filename, index: this.getIndex() }; } } else { if (name.substring(0, 2) === '$@') { name = "$" + new Variable(name.substr(1)).eval(context).value; } else { name = name.charAt(0) === '$' ? name : "$" + name; } if (rules.properties) { rules = rules.property(name); } if (!rules) { throw { type: 'Name', message: "property \"" + name.substr(1) + "\" not found", filename: this.fileInfo().filename, index: this.getIndex() }; } // Properties are an array of values, since a ruleset can have multiple props. // We pick the last one (the "cascaded" value) rules = rules[rules.length - 1]; } if (rules.value) { rules = rules.eval(context).value; } if (rules.ruleset) { rules = rules.ruleset.eval(context); } } return rules; }; return NamespaceValue; }(Node)); NamespaceValue.prototype.type = 'NamespaceValue'; var Definition = /** @class */ (function (_super) { tslib.__extends(Definition, _super); function Definition(name, params, rules, condition, variadic, frames, visibilityInfo) { var _this = _super.call(this) || this; _this.name = name || 'anonymous mixin'; _this.selectors = [new Selector([new Element(null, name, false, _this._index, _this._fileInfo)])]; _this.params = params; _this.condition = condition; _this.variadic = variadic; _this.arity = params.length; _this.rules = rules; _this._lookups = {}; var optionalParameters = []; _this.required = params.reduce(function (count, p) { if (!p.name || (p.name && !p.value)) { return count + 1; } else { optionalParameters.push(p.name); return count; } }, 0); _this.optionalParameters = optionalParameters; _this.frames = frames; _this.copyVisibilityInfo(visibilityInfo); _this.allowRoot = true; return _this; } 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); var varargs; var arg; var params = copyArray(this.params); var i; var j; var val; var name; var isNamedFound; var argIndex; var argsLength = 0; if (mixinEnv.frames && mixinEnv.frames[0] && mixinEnv.frames[0].functionRegistry) { frame.functionRegistry = mixinEnv.frames[0].functionRegistry.inherit(); } mixinEnv = new contexts.Eval(mixinEnv, [frame].concat(mixinEnv.frames)); if (args) { args = copyArray(args); 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 Declaration(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 Declaration(name, new Expression(varargs).eval(context))); } else { val = arg && arg.value; if (val) { // This was a mixin call, pass in a detached ruleset of it's eval'd rules if (Array.isArray(val)) { val = new DetachedRuleset(new Ruleset('', val)); } else { 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 Declaration(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.makeImportant = function () { var rules = !this.rules ? this.rules : this.rules.map(function (r) { if (r.makeImportant) { return r.makeImportant(true); } else { return r; } }); var result = new Definition(this.name, this.params, rules, this.condition, this.variadic, this.frames); return result; }; Definition.prototype.eval = function (context) { return new Definition(this.name, this.params, this.rules, this.condition, this.variadic, this.frames || copyArray(context.frames)); }; Definition.prototype.evalCall = function (context, args, important) { var _arguments = []; var mixinFrames = this.frames ? this.frames.concat(context.frames) : context.frames; var frame = this.evalParams(context, new contexts.Eval(context, mixinFrames), args, _arguments); var rules; var ruleset; frame.prependRule(new Declaration('@arguments', new Expression(_arguments).eval(context))); rules = copyArray(this.rules); ruleset = new Ruleset(null, rules); ruleset.originalRuleset = this; ruleset = ruleset.eval(new contexts.Eval(context, [this, frame].concat(mixinFrames))); if (important) { ruleset = ruleset.makeImportant(); } return ruleset; }; Definition.prototype.matchCondition = function (args, context) { if (this.condition && !this.condition.eval(new contexts.Eval(context, [this.evalParams(context, /* the parameter variables */ new contexts.Eval(context, this.frames ? this.frames.concat(context.frames) : context.frames), args, [])] .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 allArgsCnt = (args && args.length) || 0; var len; var optionalParameters = this.optionalParameters; var requiredArgsCnt = !args ? 0 : args.reduce(function (count, p) { if (optionalParameters.indexOf(p.name) < 0) { return count + 1; } else { return count; } }, 0); if (!this.variadic) { if (requiredArgsCnt < this.required) { return false; } if (allArgsCnt > this.params.length) { return false; } } else { if (requiredArgsCnt < (this.required - 1)) { return false; } } // check patterns len = Math.min(requiredArgsCnt, this.arity); for (var i_1 = 0; i_1 < len; i_1++) { if (!this.params[i_1].name && !this.params[i_1].variadic) { if (args[i_1].value.eval(context).toCSS() != this.params[i_1].value.eval(context).toCSS()) { return false; } } } return true; }; return Definition; }(Ruleset)); Definition.prototype.type = 'MixinDefinition'; Definition.prototype.evalFirst = true; var MixinCall = /** @class */ (function (_super) { tslib.__extends(MixinCall, _super); function MixinCall(elements, args, index, currentFileInfo, important) { var _this = _super.call(this) || this; _this.selector = new Selector(elements); _this.arguments = args || []; _this._index = index; _this._fileInfo = currentFileInfo; _this.important = important; _this.allowRoot = true; _this.setParent(_this.selector, _this); return _this; } MixinCall.prototype.accept = function (visitor) { if (this.selector) { this.selector = visitor.visit(this.selector); } if (this.arguments.length) { this.arguments = visitor.visitArray(this.arguments); } }; MixinCall.prototype.eval = function (context) { var mixins; var mixin; var mixinPath; var args = []; var arg; var argValue; var rules = []; var match = false; var i; var m; var f; var isRecursive; var isOneFound; var candidates = []; var candidate; var conditionResult = []; var defaultResult; var defFalseEitherCase = -1; var defNone = 0; var defTrue = 1; var defFalse = 2; var count; var originalRuleset; var noArgumentsFilter; this.selector = this.selector.eval(context); function calcDefGroup(mixin, mixinPath) { var f; var p; var 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; } for (i = 0; i < this.arguments.length; i++) { arg = this.arguments[i]; argValue = arg.value.eval(context); if (arg.expand && Array.isArray(argValue.value)) { argValue = argValue.value; for (m = 0; m < argValue.length; m++) { args.push({ value: argValue[m] }); } } else { args.push({ name: arg.name, value: argValue }); } } 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 Definition)) && 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.getIndex(), filename: this.fileInfo().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 Definition)) { originalRuleset = mixin.originalRuleset || mixin; mixin = new Definition('', [], mixin.rules, null, false, null, originalRuleset.visibilityInfo()); mixin.originalRuleset = originalRuleset; } var newRules = mixin.evalCall(context, args, this.important).rules; this._setVisibilityToReplacement(newRules); Array.prototype.push.apply(rules, newRules); } catch (e) { throw { message: e.message, index: this.getIndex(), filename: this.fileInfo().filename, stack: e.stack }; } } } if (match) { return rules; } } } if (isOneFound) { throw { type: 'Runtime', message: "No matching definition was found for `" + this.format(args) + "`", index: this.getIndex(), filename: this.fileInfo().filename }; } else { throw { type: 'Name', message: this.selector.toCSS().trim() + " is undefined", index: this.getIndex(), filename: this.fileInfo().filename }; } }; MixinCall.prototype._setVisibilityToReplacement = function (replacement) { var i; var rule; if (this.blocksVisibility()) { for (i = 0; i < replacement.length; i++) { rule = replacement[i]; rule.addVisibilityBlock(); } } }; 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(', ') : '') + ")"; }; return MixinCall; }(Node)); MixinCall.prototype.type = 'MixinCall'; var tree = { Node: Node, Color: Color, AtRule: AtRule, DetachedRuleset: DetachedRuleset, Operation: Operation, Dimension: Dimension, Unit: Unit, Keyword: Keyword, Variable: Variable, Property: Property, Ruleset: Ruleset, Element: Element, Attribute: Attribute, Combinator: Combinator, Selector: Selector, Quoted: Quoted, Expression: Expression, Declaration: Declaration, Call: Call, URL: URL, Import: Import, Comment: Comment, Anonymous: Anonymous, Value: Value, JavaScript: JavaScript, Assignment: Assignment, Condition: Condition, Paren: Paren, Media: Media, UnicodeDescriptor: UnicodeDescriptor, Negative: Negative, Extend: Extend, VariableCall: VariableCall, NamespaceValue: NamespaceValue, mixin: { Call: MixinCall, Definition: Definition } }; /** * @todo Document why this abstraction exists, and the relationship between * environment, file managers, and plugin manager */ var environment$1 = /** @class */ (function () { function environment(externalEnvironment, fileManagers) { this.fileManagers = fileManagers || []; externalEnvironment = externalEnvironment || {}; var optionalFunctions = ['encodeBase64', 'mimeLookup', 'charsetLookup', 'getSourceMapGenerator']; var requiredFunctions = []; var functions = requiredFunctions.concat(optionalFunctions); for (var i_1 = 0; i_1 < functions.length; i_1++) { var propName = functions[i_1]; var environmentFunc = externalEnvironment[propName]; if (environmentFunc) { this[propName] = environmentFunc.bind(externalEnvironment); } else if (i_1 < requiredFunctions.length) { this.warn("missing required function in environment - " + propName); } } } environment.prototype.getFileManager = function (filename, currentDirectory, options, environment, isSync) { if (!filename) { logger.warn('getFileManager called with no filename.. Please report this issue. continuing.'); } if (currentDirectory == null) { logger.warn('getFileManager called with null directory.. Please report this issue. continuing.'); } var fileManagers = this.fileManagers; if (options.pluginManager) { fileManagers = [].concat(fileManagers).concat(options.pluginManager.getFileManagers()); } for (var i_2 = fileManagers.length - 1; i_2 >= 0; i_2--) { var fileManager = fileManagers[i_2]; 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 = []; }; return environment; }()); var AbstractPluginLoader = /** @class */ (function () { function AbstractPluginLoader() { // Implemented by Node.js plugin loader this.require = function () { return null; }; } AbstractPluginLoader.prototype.evalPlugin = function (contents, context, imports, pluginOptions, fileInfo) { var loader; var registry; var pluginObj; var localModule; var pluginManager; var filename; var result; pluginManager = context.pluginManager; if (fileInfo) { if (typeof fileInfo === 'string') { filename = fileInfo; } else { filename = fileInfo.filename; } } var shortname = (new this.less.FileManager()).extractUrlParts(filename).filename; if (filename) { pluginObj = pluginManager.get(filename); if (pluginObj) { result = this.trySetOptions(pluginObj, filename, shortname, pluginOptions); if (result) { return result; } try { if (pluginObj.use) { pluginObj.use.call(this.context, pluginObj); } } catch (e) { e.message = e.message || 'Error during @plugin call'; return new LessError(e, imports, filename); } return pluginObj; } } localModule = { exports: {}, pluginManager: pluginManager, fileInfo: fileInfo }; registry = functionRegistry.create(); var registerPlugin = function (obj) { pluginObj = obj; }; try { loader = new Function('module', 'require', 'registerPlugin', 'functions', 'tree', 'less', 'fileInfo', contents); loader(localModule, this.require(filename), registerPlugin, registry, this.less.tree, this.less, fileInfo); } catch (e) { return new LessError(e, imports, filename); } if (!pluginObj) { pluginObj = localModule.exports; } pluginObj = this.validatePlugin(pluginObj, filename, shortname); if (pluginObj instanceof LessError) { return pluginObj; } if (pluginObj) { pluginObj.imports = imports; pluginObj.filename = filename; // For < 3.x (or unspecified minVersion) - setOptions() before install() if (!pluginObj.minVersion || this.compareVersion('3.0.0', pluginObj.minVersion) < 0) { result = this.trySetOptions(pluginObj, filename, shortname, pluginOptions); if (result) { return result; } } // Run on first load pluginManager.addPlugin(pluginObj, fileInfo.filename, registry); pluginObj.functions = registry.getLocalFunctions(); // Need to call setOptions again because the pluginObj might have functions result = this.trySetOptions(pluginObj, filename, shortname, pluginOptions); if (result) { return result; } // Run every @plugin call try { if (pluginObj.use) { pluginObj.use.call(this.context, pluginObj); } } catch (e) { e.message = e.message || 'Error during @plugin call'; return new LessError(e, imports, filename); } } else { return new LessError({ message: 'Not a valid plugin' }, imports, filename); } return pluginObj; }; AbstractPluginLoader.prototype.trySetOptions = function (plugin, filename, name, options) { if (options && !plugin.setOptions) { return new LessError({ message: "Options have been provided but the plugin " + name + " does not support any options." }); } try { plugin.setOptions && plugin.setOptions(options); } catch (e) { return new LessError(e); } }; AbstractPluginLoader.prototype.validatePlugin = function (plugin, filename, name) { if (plugin) { // support plugins being a function // so that the plugin can be more usable programmatically if (typeof plugin === 'function') { plugin = new plugin(); } if (plugin.minVersion) { if (this.compareVersion(plugin.minVersion, this.less.version) < 0) { return new LessError({ message: "Plugin " + name + " requires version " + this.versionToString(plugin.minVersion) }); } } return plugin; } return null; }; AbstractPluginLoader.prototype.compareVersion = function (aVersion, bVersion) { if (typeof aVersion === 'string') { aVersion = aVersion.match(/^(\d+)\.?(\d+)?\.?(\d+)?/); aVersion.shift(); } for (var i_1 = 0; i_1 < aVersion.length; i_1++) { if (aVersion[i_1] !== bVersion[i_1]) { return parseInt(aVersion[i_1]) > parseInt(bVersion[i_1]) ? -1 : 1; } } return 0; }; AbstractPluginLoader.prototype.versionToString = function (version) { var versionString = ''; for (var i_2 = 0; i_2 < version.length; i_2++) { versionString += (versionString ? '.' : '') + version[i_2]; } return versionString; }; AbstractPluginLoader.prototype.printUsage = function (plugins) { for (var i_3 = 0; i_3 < plugins.length; i_3++) { var plugin = plugins[i_3]; if (plugin.printUsage) { plugin.printUsage(); } } }; return AbstractPluginLoader; }()); var _visitArgs = { visitDeeper: true }; var _hasIndexed = false; function _noop(node) { return node; } function indexNodeTypes(parent, ticker) { // add .typeIndex to tree node types for lookup table var key; var child; for (key in parent) { /* eslint guard-for-in: 0 */ 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 = /** @class */ (function () { function Visitor(implementation) { this._implementation = implementation; this._visitInCache = {}; this._visitOutCache = {}; if (!_hasIndexed) { indexNodeTypes(tree, 1); _hasIndexed = true; } } Visitor.prototype.visit = function (node) { if (!node) { return node; } var nodeTypeIndex = node.typeIndex; if (!nodeTypeIndex) { // MixinCall args aren't a node type? if (node.value && node.value.typeIndex) { this.visit(node.value); } return node; } var impl = this._implementation; var func = this._visitInCache[nodeTypeIndex]; var funcOut = this._visitOutCache[nodeTypeIndex]; var visitArgs = _visitArgs; var fnName; visitArgs.visitDeeper = true; if (!func) { fnName = "visit" + node.type; func = impl[fnName] || _noop; funcOut = impl[fnName + "Out"] || _noop; this._visitInCache[nodeTypeIndex] = func; this._visitOutCache[nodeTypeIndex] = funcOut; } if (func !== _noop) { var newNode = func.call(impl, node, visitArgs); if (node && impl.isReplacing) { node = newNode; } } if (visitArgs.visitDeeper && node) { if (node.length) { for (var i = 0, cnt = node.length; i < cnt; i++) { if (node[i].accept) { node[i].accept(this); } } } else if (node.accept) { node.accept(this); } } if (funcOut != _noop) { funcOut.call(impl, node); } return node; }; Visitor.prototype.visitArray = function (nodes, nonReplacing) { if (!nodes) { return nodes; } var cnt = nodes.length; var 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 === undefined) { continue; } if (!evald.splice) { out.push(evald); } else if (evald.length) { this.flatten(evald, out); } } return out; }; Visitor.prototype.flatten = function (arr, out) { if (!out) { out = []; } var cnt; var i; var item; var nestedCnt; var j; var nestedItem; for (i = 0, cnt = arr.length; i < cnt; i++) { item = arr[i]; if (item === undefined) { continue; } if (!item.splice) { out.push(item); continue; } for (j = 0, nestedCnt = item.length; j < nestedCnt; j++) { nestedItem = item[j]; if (nestedItem === undefined) { continue; } if (!nestedItem.splice) { out.push(nestedItem); } else if (nestedItem.length) { this.flatten(nestedItem, out); } } } return out; }; return Visitor; }()); var ImportSequencer = /** @class */ (function () { function ImportSequencer(onSequencerEmpty) { this.imports = []; this.variableImports = []; this._onSequencerEmpty = onSequencerEmpty; this._currentDepth = 0; } ImportSequencer.prototype.addImport = function (callback) { var importSequencer = this; var importItem = { callback: callback, args: null, isReady: false }; this.imports.push(importItem); return function () { var args = []; for (var _i = 0; _i < arguments.length; _i++) { args[_i] = arguments[_i]; } importItem.args = Array.prototype.slice.call(args, 0); importItem.isReady = true; importSequencer.tryRun(); }; }; ImportSequencer.prototype.addVariableImport = function (callback) { this.variableImports.push(callback); }; ImportSequencer.prototype.tryRun = function () { this._currentDepth++; try { while (true) { while (this.imports.length > 0) { var importItem = this.imports[0]; if (!importItem.isReady) { return; } this.imports = this.imports.slice(1); importItem.callback.apply(null, importItem.args); } if (this.variableImports.length === 0) { break; } var variableImport = this.variableImports[0]; this.variableImports = this.variableImports.slice(1); variableImport(); } } finally { this._currentDepth--; } if (this._currentDepth === 0 && this._onSequencerEmpty) { this._onSequencerEmpty(); } }; return ImportSequencer; }()); var ImportVisitor = function (importer, finish) { this._visitor = new Visitor(this); this._importer = importer; this._finish = finish; this.context = new contexts.Eval(); this.importCount = 0; this.onceFileDetectionMap = {}; this.recursionDetector = {}; this._sequencer = new ImportSequencer(this._onSequencerEmpty.bind(this)); }; ImportVisitor.prototype = { isReplacing: false, run: function (root) { try { // process the contents this._visitor.visit(root); } catch (e) { this.error = e; } this.isFinished = true; this._sequencer.tryRun(); }, _onSequencerEmpty: function () { if (!this.isFinished) { return; } this._finish(this.error); }, visitImport: function (importNode, visitArgs) { var inlineCSS = importNode.options.inline; if (!importNode.css || inlineCSS) { var context = new contexts.Eval(this.context, copyArray(this.context.frames)); var importParent = context.frames[0]; this.importCount++; if (importNode.isVariableImport()) { this._sequencer.addVariableImport(this.processImportNode.bind(this, importNode, context, importParent)); } else { this.processImportNode(importNode, context, importParent); } } visitArgs.visitDeeper = false; }, processImportNode: function (importNode, context, importParent) { var evaldImportNode; var inlineCSS = importNode.options.inline; try { evaldImportNode = importNode.evalForImport(context); } catch (e) { if (!e.filename) { e.index = importNode.getIndex(); e.filename = importNode.fileInfo().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)) { if (evaldImportNode.options.multiple) { context.importMultiple = true; } // try appending if we haven't determined if it is css or not var tryAppendLessExtension = evaldImportNode.css === undefined; for (var i_1 = 0; i_1 < importParent.rules.length; i_1++) { if (importParent.rules[i_1] === importNode) { importParent.rules[i_1] = evaldImportNode; break; } } var onImported = this.onImported.bind(this, evaldImportNode, context); var sequencedOnImported = this._sequencer.addImport(onImported); this._importer.push(evaldImportNode.getPath(), tryAppendLessExtension, evaldImportNode.fileInfo(), evaldImportNode.options, sequencedOnImported); } else { this.importCount--; if (this.isFinished) { this._sequencer.tryRun(); } } }, onImported: function (importNode, context, e, root, importedAtRoot, fullPath) { if (e) { if (!e.filename) { e.index = importNode.getIndex(); e.filename = importNode.fileInfo().filename; } this.error = e; } var importVisitor = this; var inlineCSS = importNode.options.inline; var isPlugin = importNode.options.isPlugin; var isOptional = importNode.options.optional; 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; }; } } if (!fullPath && isOptional) { importNode.skip = true; } if (root) { importNode.root = root; importNode.importedFilename = fullPath; if (!inlineCSS && !isPlugin && (context.importMultiple || !duplicateImport)) { importVisitor.recursionDetector[fullPath] = true; var oldContext = this.context; this.context = context; try { this._visitor.visit(root); } catch (e) { this.error = e; } this.context = oldContext; } } importVisitor.importCount--; if (importVisitor.isFinished) { importVisitor._sequencer.tryRun(); } }, visitDeclaration: function (declNode, visitArgs) { if (declNode.value.type === 'DetachedRuleset') { this.context.frames.unshift(declNode); } else { visitArgs.visitDeeper = false; } }, visitDeclarationOut: function (declNode) { if (declNode.value.type === 'DetachedRuleset') { this.context.frames.shift(); } }, visitAtRule: function (atRuleNode, visitArgs) { this.context.frames.unshift(atRuleNode); }, visitAtRuleOut: function (atRuleNode) { this.context.frames.shift(); }, visitMixinDefinition: function (mixinDefinitionNode, visitArgs) { this.context.frames.unshift(mixinDefinitionNode); }, visitMixinDefinitionOut: function (mixinDefinitionNode) { this.context.frames.shift(); }, visitRuleset: function (rulesetNode, visitArgs) { this.context.frames.unshift(rulesetNode); }, visitRulesetOut: function (rulesetNode) { this.context.frames.shift(); }, visitMedia: function (mediaNode, visitArgs) { this.context.frames.unshift(mediaNode.rules[0]); }, visitMediaOut: function (mediaNode) { this.context.frames.shift(); } }; var SetTreeVisibilityVisitor = /** @class */ (function () { function SetTreeVisibilityVisitor(visible) { this.visible = visible; } SetTreeVisibilityVisitor.prototype.run = function (root) { this.visit(root); }; SetTreeVisibilityVisitor.prototype.visitArray = function (nodes) { if (!nodes) { return nodes; } var cnt = nodes.length; var i; for (i = 0; i < cnt; i++) { this.visit(nodes[i]); } return nodes; }; SetTreeVisibilityVisitor.prototype.visit = function (node) { if (!node) { return node; } if (node.constructor === Array) { return this.visitArray(node); } if (!node.blocksVisibility || node.blocksVisibility()) { return node; } if (this.visible) { node.ensureVisibility(); } else { node.ensureInvisibility(); } node.accept(this); return node; }; return SetTreeVisibilityVisitor; }()); /* jshint loopfunc:true */ var ExtendFinderVisitor = /** @class */ (function () { function ExtendFinderVisitor() { 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; }; ExtendFinderVisitor.prototype.visitDeclaration = function (declNode, visitArgs) { visitArgs.visitDeeper = false; }; ExtendFinderVisitor.prototype.visitMixinDefinition = function (mixinDefinitionNode, visitArgs) { visitArgs.visitDeeper = false; }; ExtendFinderVisitor.prototype.visitRuleset = function (rulesetNode, visitArgs) { if (rulesetNode.root) { return; } var i; var j; var extend; var allSelectorsExtendList = []; var extendList; // get &:extend(.a); rules which apply to all selectors in this ruleset var rules = rulesetNode.rules; var 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]; var selector = selectorPath[selectorPath.length - 1]; var selExtendList = selector.extendList; extendList = selExtendList ? copyArray(selExtendList).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); }; ExtendFinderVisitor.prototype.visitRulesetOut = function (rulesetNode) { if (!rulesetNode.root) { this.contexts.length = this.contexts.length - 1; } }; ExtendFinderVisitor.prototype.visitMedia = function (mediaNode, visitArgs) { mediaNode.allExtends = []; this.allExtendsStack.push(mediaNode.allExtends); }; ExtendFinderVisitor.prototype.visitMediaOut = function (mediaNode) { this.allExtendsStack.length = this.allExtendsStack.length - 1; }; ExtendFinderVisitor.prototype.visitAtRule = function (atRuleNode, visitArgs) { atRuleNode.allExtends = []; this.allExtendsStack.push(atRuleNode.allExtends); }; ExtendFinderVisitor.prototype.visitAtRuleOut = function (atRuleNode) { this.allExtendsStack.length = this.allExtendsStack.length - 1; }; return ExtendFinderVisitor; }()); var ProcessExtendsVisitor = /** @class */ (function () { function ProcessExtendsVisitor() { this._visitor = new Visitor(this); } ProcessExtendsVisitor.prototype.run = function (root) { var extendFinder = new ExtendFinderVisitor(); this.extendIndices = {}; extendFinder.run(root); if (!extendFinder.foundExtends) { return root; } root.allExtends = root.allExtends.concat(this.doExtendChaining(root.allExtends, root.allExtends)); this.allExtendsStack = [root.allExtends]; var newRoot = this._visitor.visit(root); this.checkExtendsForNonMatched(root.allExtends); return newRoot; }; ProcessExtendsVisitor.prototype.checkExtendsForNonMatched = function (extendList) { var indices = this.extendIndices; extendList.filter(function (extend) { return !extend.hasFoundMatches && extend.parent_ids.length == 1; }).forEach(function (extend) { var selector = '_unknown_'; try { selector = extend.selector.toCSS({}); } catch (_) { } if (!indices[extend.index + " " + selector]) { indices[extend.index + " " + selector] = true; logger.warn("extend '" + selector + "' has no matches"); } }); }; ProcessExtendsVisitor.prototype.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; var targetExtendIndex; var matches; var extendsToAdd = []; var newSelector; var extendVisitor = this; var selectorPath; var extend; var targetExtend; var 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 separation 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) { extend.hasFoundMatches = true; // we found a match, so for each self selector.. extend.selfSelectors.forEach(function (selfSelector) { var info = targetExtend.visibilityInfo(); // process the extend as usual newSelector = extendVisitor.extendSelector(matches, selectorPath, selfSelector, extend.isVisible()); // but now we create a new extend from it newExtend = new (tree.Extend)(targetExtend.selector, targetExtend.option, 0, targetExtend.fileInfo(), info); 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 extending // d extending e... return extendsToAdd.concat(extendVisitor.doExtendChaining(extendsToAdd, extendsListTarget, iterationCount + 1)); } else { return extendsToAdd; } }; ProcessExtendsVisitor.prototype.visitDeclaration = function (ruleNode, visitArgs) { visitArgs.visitDeeper = false; }; ProcessExtendsVisitor.prototype.visitMixinDefinition = function (mixinDefinitionNode, visitArgs) { visitArgs.visitDeeper = false; }; ProcessExtendsVisitor.prototype.visitSelector = function (selectorNode, visitArgs) { visitArgs.visitDeeper = false; }; ProcessExtendsVisitor.prototype.visitRuleset = function (rulesetNode, visitArgs) { if (rulesetNode.root) { return; } var matches; var pathIndex; var extendIndex; var allExtends = this.allExtendsStack[this.allExtendsStack.length - 1]; var selectorsToAdd = []; var extendVisitor = this; var 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].hasFoundMatches = true; allExtends[extendIndex].selfSelectors.forEach(function (selfSelector) { var extendedSelectors; extendedSelectors = extendVisitor.extendSelector(matches, selectorPath, selfSelector, allExtends[extendIndex].isVisible()); selectorsToAdd.push(extendedSelectors); }); } } } rulesetNode.paths = rulesetNode.paths.concat(selectorsToAdd); }; ProcessExtendsVisitor.prototype.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; var hackstackSelector; var hackstackElementIndex; var haystackElement; var targetCombinator; var i; var extendVisitor = this; var needleElements = extend.selector.elements; var potentialMatches = []; var potentialMatch; var 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; }; ProcessExtendsVisitor.prototype.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_1 = 0; i_1 < elementValue1.elements.length; i_1++) { if (elementValue1.elements[i_1].combinator.value !== elementValue2.elements[i_1].combinator.value) { if (i_1 !== 0 || (elementValue1.elements[i_1].combinator.value || ' ') !== (elementValue2.elements[i_1].combinator.value || ' ')) { return false; } } if (!this.isElementValuesEqual(elementValue1.elements[i_1].value, elementValue2.elements[i_1].value)) { return false; } } return true; } return false; }; ProcessExtendsVisitor.prototype.extendSelector = function (matches, selectorPath, replacementSelector, isVisible) { // for a set of matches, replace each match with the replacement selector var currentSelectorPathIndex = 0; var currentSelectorPathElementIndex = 0; var path = []; var matchIndex; var selector; var firstElement; var match; var 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].isVariable, replacementSelector.elements[0].getIndex(), replacementSelector.elements[0].fileInfo()); 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)); path = path.map(function (currentValue) { // we can re-use elements here, because the visibility property matters only for selectors var derived = currentValue.createDerived(currentValue.elements); if (isVisible) { derived.ensureVisibility(); } else { derived.ensureInvisibility(); } return derived; }); return path; }; ProcessExtendsVisitor.prototype.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); }; ProcessExtendsVisitor.prototype.visitMediaOut = function (mediaNode) { var lastIndex = this.allExtendsStack.length - 1; this.allExtendsStack.length = lastIndex; }; ProcessExtendsVisitor.prototype.visitAtRule = function (atRuleNode, visitArgs) { var newAllExtends = atRuleNode.allExtends.concat(this.allExtendsStack[this.allExtendsStack.length - 1]); newAllExtends = newAllExtends.concat(this.doExtendChaining(newAllExtends, atRuleNode.allExtends)); this.allExtendsStack.push(newAllExtends); }; ProcessExtendsVisitor.prototype.visitAtRuleOut = function (atRuleNode) { var lastIndex = this.allExtendsStack.length - 1; this.allExtendsStack.length = lastIndex; }; return ProcessExtendsVisitor; }()); var JoinSelectorVisitor = /** @class */ (function () { function JoinSelectorVisitor() { this.contexts = [[]]; this._visitor = new Visitor(this); } JoinSelectorVisitor.prototype.run = function (root) { return this._visitor.visit(root); }; JoinSelectorVisitor.prototype.visitDeclaration = function (declNode, visitArgs) { visitArgs.visitDeeper = false; }; JoinSelectorVisitor.prototype.visitMixinDefinition = function (mixinDefinitionNode, visitArgs) { visitArgs.visitDeeper = false; }; JoinSelectorVisitor.prototype.visitRuleset = function (rulesetNode, visitArgs) { var context = this.contexts[this.contexts.length - 1]; var paths = []; var 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; } }; JoinSelectorVisitor.prototype.visitRulesetOut = function (rulesetNode) { this.contexts.length = this.contexts.length - 1; }; JoinSelectorVisitor.prototype.visitMedia = function (mediaNode, visitArgs) { var context = this.contexts[this.contexts.length - 1]; mediaNode.rules[0].root = (context.length === 0 || context[0].multiMedia); }; JoinSelectorVisitor.prototype.visitAtRule = function (atRuleNode, visitArgs) { var context = this.contexts[this.contexts.length - 1]; if (atRuleNode.rules && atRuleNode.rules.length) { atRuleNode.rules[0].root = (atRuleNode.isRooted || context.length === 0 || null); } }; return JoinSelectorVisitor; }()); var CSSVisitorUtils = /** @class */ (function () { function CSSVisitorUtils(context) { this._visitor = new Visitor(this); this._context = context; } CSSVisitorUtils.prototype.containsSilentNonBlockedChild = function (bodyRules) { var rule; if (!bodyRules) { return false; } for (var r = 0; r < bodyRules.length; r++) { rule = bodyRules[r]; if (rule.isSilent && rule.isSilent(this._context) && !rule.blocksVisibility()) { // the atrule contains something that was referenced (likely by extend) // therefore it needs to be shown in output too return true; } } return false; }; CSSVisitorUtils.prototype.keepOnlyVisibleChilds = function (owner) { if (owner && owner.rules) { owner.rules = owner.rules.filter(function (thing) { return thing.isVisible(); }); } }; CSSVisitorUtils.prototype.isEmpty = function (owner) { return (owner && owner.rules) ? (owner.rules.length === 0) : true; }; CSSVisitorUtils.prototype.hasVisibleSelector = function (rulesetNode) { return (rulesetNode && rulesetNode.paths) ? (rulesetNode.paths.length > 0) : false; }; CSSVisitorUtils.prototype.resolveVisibility = function (node, originalRules) { if (!node.blocksVisibility()) { if (this.isEmpty(node) && !this.containsSilentNonBlockedChild(originalRules)) { return; } return node; } var compiledRulesBody = node.rules[0]; this.keepOnlyVisibleChilds(compiledRulesBody); if (this.isEmpty(compiledRulesBody)) { return; } node.ensureVisibility(); node.removeVisibilityBlock(); return node; }; CSSVisitorUtils.prototype.isVisibleRuleset = function (rulesetNode) { if (rulesetNode.firstRoot) { return true; } if (this.isEmpty(rulesetNode)) { return false; } if (!rulesetNode.root && !this.hasVisibleSelector(rulesetNode)) { return false; } return true; }; return CSSVisitorUtils; }()); var ToCSSVisitor = function (context) { this._visitor = new Visitor(this); this._context = context; this.utils = new CSSVisitorUtils(context); }; ToCSSVisitor.prototype = { isReplacing: true, run: function (root) { return this._visitor.visit(root); }, visitDeclaration: function (declNode, visitArgs) { if (declNode.blocksVisibility() || declNode.variable) { return; } return declNode; }, 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 = []; }, visitExtend: function (extendNode, visitArgs) { }, visitComment: function (commentNode, visitArgs) { if (commentNode.blocksVisibility() || commentNode.isSilent(this._context)) { return; } return commentNode; }, visitMedia: function (mediaNode, visitArgs) { var originalRules = mediaNode.rules[0].rules; mediaNode.accept(this._visitor); visitArgs.visitDeeper = false; return this.utils.resolveVisibility(mediaNode, originalRules); }, visitImport: function (importNode, visitArgs) { if (importNode.blocksVisibility()) { return; } return importNode; }, visitAtRule: function (atRuleNode, visitArgs) { if (atRuleNode.rules && atRuleNode.rules.length) { return this.visitAtRuleWithBody(atRuleNode, visitArgs); } else { return this.visitAtRuleWithoutBody(atRuleNode, visitArgs); } }, visitAnonymous: function (anonymousNode, visitArgs) { if (!anonymousNode.blocksVisibility()) { anonymousNode.accept(this._visitor); return anonymousNode; } }, visitAtRuleWithBody: function (atRuleNode, visitArgs) { // if there is only one nested ruleset and that one has no path, then it is // just fake ruleset function hasFakeRuleset(atRuleNode) { var bodyRules = atRuleNode.rules; return bodyRules.length === 1 && (!bodyRules[0].paths || bodyRules[0].paths.length === 0); } function getBodyRules(atRuleNode) { var nodeRules = atRuleNode.rules; if (hasFakeRuleset(atRuleNode)) { return nodeRules[0].rules; } return nodeRules; } // it is still true that it is only one ruleset in array // this is last such moment // process childs var originalRules = getBodyRules(atRuleNode); atRuleNode.accept(this._visitor); visitArgs.visitDeeper = false; if (!this.utils.isEmpty(atRuleNode)) { this._mergeRules(atRuleNode.rules[0].rules); } return this.utils.resolveVisibility(atRuleNode, originalRules); }, visitAtRuleWithoutBody: function (atRuleNode, visitArgs) { if (atRuleNode.blocksVisibility()) { return; } if (atRuleNode.name === '@charset') { // Only output the debug info together with subsequent @charset definitions // a comment (or @media statement) before the actual @charset atrule would // be considered illegal css as it has to be on the first line if (this.charset) { if (atRuleNode.debugInfo) { var comment = new tree.Comment("/* " + atRuleNode.toCSS(this._context).replace(/\n/g, '') + " */\n"); comment.debugInfo = atRuleNode.debugInfo; return this._visitor.visit(comment); } return; } this.charset = true; } return atRuleNode; }, checkValidNodes: function (rules, isRoot) { if (!rules) { return; } for (var i_1 = 0; i_1 < rules.length; i_1++) { var ruleNode = rules[i_1]; if (isRoot && ruleNode instanceof tree.Declaration && !ruleNode.variable) { throw { message: 'Properties must be inside selector blocks. They cannot be in the root', index: ruleNode.getIndex(), filename: ruleNode.fileInfo() && ruleNode.fileInfo().filename }; } if (ruleNode instanceof tree.Call) { throw { message: "Function '" + ruleNode.name + "' is undefined", index: ruleNode.getIndex(), filename: ruleNode.fileInfo() && ruleNode.fileInfo().filename }; } if (ruleNode.type && !ruleNode.allowRoot) { throw { message: ruleNode.type + " node returned by a function is not valid here", index: ruleNode.getIndex(), filename: ruleNode.fileInfo() && ruleNode.fileInfo().filename }; } } }, visitRuleset: function (rulesetNode, visitArgs) { // at this point rulesets are nested into each other var rule; var rulesets = []; this.checkValidNodes(rulesetNode.rules, rulesetNode.firstRoot); if (!rulesetNode.root) { // remove invisible paths this._compileRulesetPaths(rulesetNode); // remove rulesets from this ruleset body and compile them separately var nodeRules = rulesetNode.rules; var nodeRuleCnt = nodeRules ? nodeRules.length : 0; for (var i_2 = 0; i_2 < nodeRuleCnt;) { rule = nodeRules[i_2]; if (rule && rule.rules) { // visit because we are moving them out from being a child rulesets.push(this._visitor.visit(rule)); nodeRules.splice(i_2, 1); nodeRuleCnt--; continue; } i_2++; } // accept the visitor to remove rules and refactor itself // then we can decide nogw whether we want it or not // compile body if (nodeRuleCnt > 0) { rulesetNode.accept(this._visitor); } else { rulesetNode.rules = null; } visitArgs.visitDeeper = false; } else { // if (! rulesetNode.root) { rulesetNode.accept(this._visitor); visitArgs.visitDeeper = false; } if (rulesetNode.rules) { this._mergeRules(rulesetNode.rules); this._removeDuplicateRules(rulesetNode.rules); } // now decide whether we keep the ruleset if (this.utils.isVisibleRuleset(rulesetNode)) { rulesetNode.ensureVisibility(); rulesets.splice(0, 0, rulesetNode); } if (rulesets.length === 1) { return rulesets[0]; } return rulesets; }, _compileRulesetPaths: function (rulesetNode) { 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].isVisible() && p[i].getIsOutput()) { return true; } } return false; }); } }, _removeDuplicateRules: function (rules) { if (!rules) { return; } // remove duplicates var ruleCache = {}; var ruleList; var rule; var i; for (i = rules.length - 1; i >= 0; i--) { rule = rules[i]; if (rule instanceof tree.Declaration) { if (!ruleCache[rule.name]) { ruleCache[rule.name] = rule; } else { ruleList = ruleCache[rule.name]; if (ruleList instanceof tree.Declaration) { 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 = {}; var groupsArr = []; for (var i_3 = 0; i_3 < rules.length; i_3++) { var rule = rules[i_3]; if (rule.merge) { var key = rule.name; groups[key] ? rules.splice(i_3--, 1) : groupsArr.push(groups[key] = []); groups[key].push(rule); } } groupsArr.forEach(function (group) { if (group.length > 0) { var result_1 = group[0]; var space_1 = []; var comma_1 = [new tree.Expression(space_1)]; group.forEach(function (rule) { if ((rule.merge === '+') && (space_1.length > 0)) { comma_1.push(new tree.Expression(space_1 = [])); } space_1.push(rule.value); result_1.important = result_1.important || rule.important; }); result_1.value = new tree.Value(comma_1); } }); } }; var visitors = { Visitor: Visitor, ImportVisitor: ImportVisitor, MarkVisibleSelectorsVisitor: SetTreeVisibilityVisitor, ExtendVisitor: ProcessExtendsVisitor, JoinSelectorVisitor: JoinSelectorVisitor, ToCSSVisitor: ToCSSVisitor }; // Split the input into chunks. var chunker = (function (input, fail) { var len = input.length; var level = 0; var parenLevel = 0; var lastOpening; var lastOpeningParen; var lastMultiComment; var lastMultiCommentEndBrace; var chunks = []; var emitFrom = 0; var chunkerCurrentIndex; var currentChunkStartIndex; var cc; var cc2; var 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; }); var getParserInput = (function () { var // Less input string input; var // current chunk j; var // holds state for backtracking saveStack = []; var // furthest index the parser has gone to furthest; var // if this is furthest we got to, this is the probably cause furthestPossibleErrorMessage; var // chunkified input chunks; var // current chunk current; var // index of current chunk, in `input` currentPos; var parserInput = {}; var CHARCODE_SPACE = 32; var CHARCODE_TAB = 9; var CHARCODE_LF = 10; var CHARCODE_CR = 13; var CHARCODE_PLUS = 43; var CHARCODE_COMMA = 44; var CHARCODE_FORWARD_SLASH = 47; var CHARCODE_9 = 57; function skipWhitespace(length) { var oldi = parserInput.i; var oldj = j; var curr = parserInput.i - currentPos; var endIndex = parserInput.i + current.length - curr; var mem = (parserInput.i += length); var inp = input; var c; var nextChar; var comment; for (; parserInput.i < endIndex; parserInput.i++) { c = inp.charCodeAt(parserInput.i); if (parserInput.autoCommentAbsorb && c === CHARCODE_FORWARD_SLASH) { nextChar = inp.charAt(parserInput.i + 1); if (nextChar === '/') { comment = { index: parserInput.i, isLineComment: true }; var nextNewLine = inp.indexOf('\n', parserInput.i + 2); if (nextNewLine < 0) { nextNewLine = endIndex; } parserInput.i = nextNewLine; comment.text = inp.substr(comment.index, parserInput.i - comment.index); parserInput.commentStore.push(comment); continue; } else if (nextChar === '*') { var nextStarSlash = inp.indexOf('*/', parserInput.i + 2); if (nextStarSlash >= 0) { comment = { index: parserInput.i, text: inp.substr(parserInput.i, nextStarSlash + 2 - parserInput.i), 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; } parserInput.save = function () { currentPos = parserInput.i; saveStack.push({ current: current, i: parserInput.i, j: j }); }; parserInput.restore = function (possibleErrorMessage) { if (parserInput.i > furthest || (parserInput.i === furthest && possibleErrorMessage && !furthestPossibleErrorMessage)) { 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(); }; parserInput.isWhitespace = function (offset) { var pos = parserInput.i + (offset || 0); var code = input.charCodeAt(pos); return (code === CHARCODE_SPACE || code === CHARCODE_CR || code === CHARCODE_TAB || code === CHARCODE_LF); }; // 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; }; parserInput.$char = function (tok) { if (input.charAt(parserInput.i) !== tok) { return null; } skipWhitespace(1); return tok; }; parserInput.$str = function (tok) { var tokLength = tok.length; // https://jsperf.com/string-startswith/21 for (var i_1 = 0; i_1 < tokLength; i_1++) { if (input.charAt(parserInput.i + i_1) !== tok.charAt(i_1)) { return null; } } skipWhitespace(tokLength); return tok; }; parserInput.$quoted = function (loc) { var pos = loc || parserInput.i; var startChar = input.charAt(pos); if (startChar !== '\'' && startChar !== '"') { return; } var length = input.length; var currentPosition = pos; for (var i_2 = 1; i_2 + currentPosition < length; i_2++) { var nextChar = input.charAt(i_2 + currentPosition); switch (nextChar) { case '\\': i_2++; continue; case '\r': case '\n': break; case startChar: var str = input.substr(currentPosition, i_2 + 1); if (!loc && loc !== 0) { skipWhitespace(i_2 + 1); return str; } return [startChar, str]; } } return null; }; /** * Permissive parsing. Ignores everything except matching {} [] () and quotes * until matching token (outside of blocks) */ parserInput.$parseUntil = function (tok) { var quote = ''; var returnVal = null; var inComment = false; var blockDepth = 0; var blockStack = []; var parseGroups = []; var length = input.length; var startPos = parserInput.i; var lastPos = parserInput.i; var i = parserInput.i; var loop = true; var testChar; if (typeof tok === 'string') { testChar = function (char) { return char === tok; }; } else { testChar = function (char) { return tok.test(char); }; } do { var nextChar = input.charAt(i); if (blockDepth === 0 && testChar(nextChar)) { returnVal = input.substr(lastPos, i - lastPos); if (returnVal) { parseGroups.push(returnVal); } else { parseGroups.push(' '); } returnVal = parseGroups; skipWhitespace(i - startPos); loop = false; } else { if (inComment) { if (nextChar === '*' && input.charAt(i + 1) === '/') { i++; blockDepth--; inComment = false; } i++; continue; } switch (nextChar) { case '\\': i++; nextChar = input.charAt(i); parseGroups.push(input.substr(lastPos, i - lastPos + 1)); lastPos = i + 1; break; case '/': if (input.charAt(i + 1) === '*') { i++; inComment = true; blockDepth++; } break; case '\'': case '"': quote = parserInput.$quoted(i); if (quote) { parseGroups.push(input.substr(lastPos, i - lastPos), quote); i += quote[1].length - 1; lastPos = i + 1; } else { skipWhitespace(i - startPos); returnVal = nextChar; loop = false; } break; case '{': blockStack.push('}'); blockDepth++; break; case '(': blockStack.push(')'); blockDepth++; break; case '[': blockStack.push(']'); blockDepth++; break; case '}': case ')': case ']': var expected = blockStack.pop(); if (nextChar === expected) { blockDepth--; } else { // move the parser to the error and return expected skipWhitespace(i - startPos); returnVal = expected; loop = false; } } i++; if (i > length) { loop = false; } } } while (loop); return returnVal ? returnVal : null; }; parserInput.autoCommentAbsorb = true; parserInput.commentStore = []; parserInput.finished = false; // Same as $(), but don't change the state of the parser, // just return the match. parserInput.peek = function (tok) { if (typeof tok === 'string') { // https://jsperf.com/string-startswith/21 for (var i_3 = 0; i_3 < tok.length; i_3++) { if (input.charAt(parserInput.i + i_3) !== tok.charAt(i_3)) { return false; } } return true; } 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.prevChar = function () { return input.charAt(parserInput.i - 1); }; 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 apparently 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; var isFinished = parserInput.i >= input.length; if (parserInput.i < furthest) { message = furthestPossibleErrorMessage; parserInput.i = furthest; } return { isFinished: isFinished, furthest: parserInput.i, furthestPossibleErrorMessage: message, furthestReachedEnd: parserInput.i >= input.length - 1, furthestChar: input[parserInput.i] }; }; return parserInput; }); // // less.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; var parserInput = getParserInput(); function error(msg, type) { throw new LessError({ index: parserInput.i, filename: fileInfo.filename, type: type || 'Syntax', message: msg }, imports); } function expect(arg, msg) { // some older browsers return typeof 'function' for RegExp var result = (arg instanceof Function) ? arg.call(parsers) : parserInput.$re(arg); if (result) { return result; } error(msg || (typeof arg === 'string' ? "expected '" + arg + "' got '" + parserInput.currentChar() + "'" : 'unexpected token')); } // Specialization of expect() function expectChar(arg, msg) { if (parserInput.$char(arg)) { return arg; } error(msg || "expected '" + arg + "' got '" + parserInput.currentChar() + "'"); } function getDebugInfo(index) { var filename = fileInfo.filename; return { lineNumber: getLocation(index, parserInput.getInput()).line + 1, fileName: filename }; } /** * Used after initial parsing to create nodes on the fly * * @param {String} str - string to parse * @param {Array} parseList - array of parsers to run input through e.g. ["value", "important"] * @param {Number} currentIndex - start number to begin indexing * @param {Object} fileInfo - fileInfo to attach to created nodes */ function parseNode(str, parseList, currentIndex, fileInfo, callback) { var result; var returnNodes = []; var parser = parserInput; try { parser.start(str, false, function fail(msg, index) { callback({ message: msg, index: index + currentIndex }); }); for (var x = 0, p = void 0, i_1; (p = parseList[x]); x++) { i_1 = parser.i; result = parsers[p](); if (result) { try { result._index = i_1 + currentIndex; result._fileInfo = fileInfo; } catch (e) { } returnNodes.push(result); } else { returnNodes.push(null); } } var endInfo = parser.end(); if (endInfo.isFinished) { callback(null, returnNodes); } else { callback(true, null); } } catch (e) { throw new LessError({ index: e.index + currentIndex, message: e.message }, imports, fileInfo.filename); } } // // The Parser // return { parserInput: parserInput, imports: imports, fileInfo: fileInfo, parseNode: parseNode, // // 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; var error = null; var globalVars; var modifyVars; var ignored; var preText = ''; globalVars = (additionalData && additionalData.globalVars) ? Parser.serializeVars(additionalData.globalVars) + "\n" : ''; modifyVars = (additionalData && additionalData.modifyVars) ? "\n" + Parser.serializeVars(additionalData.modifyVars) : ''; if (context.pluginManager) { var preProcessors = context.pluginManager.getPreProcessors(); for (var i_2 = 0; i_2 < preProcessors.length; i_2++) { str = preProcessors[i_2].process(str, { context: context, imports: imports, fileInfo: fileInfo }); } } if (globalVars || (additionalData && additionalData.banner)) { preText = ((additionalData && additionalData.banner) ? additionalData.banner : '') + globalVars; ignored = imports.contentsIgnoredChars; ignored[fileInfo.filename] = ignored[fileInfo.filename] || 0; ignored[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 new LessError({ index: index, type: 'Parse', message: msg, filename: fileInfo.filename }, imports); }); tree.Node.prototype.parse = this; root = new tree.Ruleset(null, this.parsers.primary()); tree.Node.prototype.rootNode = root; root.root = true; root.firstRoot = true; root.functionRegistry = functionRegistry.inherit(); } 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 -> Declaration -> 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', [ // Declaration ("color", Value ([Expression [Color #fff]])) // Declaration ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) // Declaration ("width", Value ([Expression [Operation " + " [Variable "@w"][Dimension 4px]]])) // Ruleset (Selector [Element '>', '.child'], [...]) // ]) // // In general, most rules will try to parse a token with the `$re()` function, and if the return // value is truly, will return a new node, of the relevant type. Sometimes, we need to check // first, before parsing, that's when we use `peek()`. // parsers: parsers = { // // The `primary` rule is the *entry* and *exit* point of the parser. // The rules here can appear at any level of the parse tree. // // The recursive nature of the grammar is an interplay between the `block` // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, // as represented by this simplified grammar: // // primary → (ruleset | declaration)+ // ruleset → selector+ block // block → '{' primary '}' // // Only at one point is the primary rule not called from the // block rule: at the root level. // primary: function () { var mixin = this.mixin; var root = []; var node; while (true) { while (true) { node = this.comment(); if (!node) { break; } root.push(node); } // always process comments before deciding if finished if (parserInput.finished) { break; } if (parserInput.peek('}')) { break; } node = this.extendRule(); if (node) { root = root.concat(node); continue; } node = mixin.definition() || this.declaration() || mixin.call(false, false) || this.ruleset() || this.variableCall() || this.entities.call() || this.atrule(); if (node) { root.push(node); } else { var foundSemiColon = false; while (parserInput.$char(';')) { foundSemiColon = true; } if (!foundSemiColon) { 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: { mixinLookup: function () { return parsers.mixin.call(true, true); }, // // A string, which supports escaping " and ' // // "milky way" 'he\'s the one!' // quoted: function (forceEscaped) { var str; var index = parserInput.i; var isEscaped = false; parserInput.save(); if (parserInput.$char('~')) { isEscaped = true; } else if (forceEscaped) { parserInput.restore(); return; } str = parserInput.$quoted(); if (!str) { parserInput.restore(); return; } parserInput.forget(); return new (tree.Quoted)(str.charAt(0), str.substr(1, str.length - 2), isEscaped, index, fileInfo); }, // // A catch-all word, such as: // // black border-collapse // keyword: function () { var k = parserInput.$char('%') || parserInput.$re(/^\[?(?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+\]?/); if (k) { return tree.Color.fromKeyword(k) || new (tree.Keyword)(k); } }, // // A function call // // rgb(255, 0, 255) // // The arguments are parsed with the `entities.arguments` parser. // call: function () { var name; var args; var func; var index = parserInput.i; // http://jsperf.com/case-insensitive-regex-vs-strtolower-then-regex/18 if (parserInput.peek(/^url\(/i)) { return; } parserInput.save(); name = parserInput.$re(/^([\w-]+|%|progid:[\w\.]+)\(/); if (!name) { parserInput.forget(); return; } name = name[1]; func = this.customFuncCall(name); if (func) { args = func.parse(); if (args && func.stop) { parserInput.forget(); return args; } } args = this.arguments(args); if (!parserInput.$char(')')) { parserInput.restore('Could not parse call arguments or missing \')\''); return; } parserInput.forget(); return new (tree.Call)(name, args, index, fileInfo); }, // // Parsing rules for functions with non-standard args, e.g.: // // boolean(not(2 > 1)) // // This is a quick prototype, to be modified/improved when // more custom-parsed funcs come (e.g. `selector(...)`) // customFuncCall: function (name) { /* Ideally the table is to be moved out of here for faster perf., but it's quite tricky since it relies on all these `parsers` and `expect` available only here */ return { alpha: f(parsers.ieAlpha, true), boolean: f(condition), 'if': f(condition) }[name.toLowerCase()]; function f(parse, stop) { return { parse: parse, stop: stop // when true - stop after parse() and return its result, // otherwise continue for plain args }; } function condition() { return [expect(parsers.condition, 'expected condition')]; } }, arguments: function (prevArgs) { var argsComma = prevArgs || []; var argsSemiColon = []; var isSemiColonSeparated; var value; parserInput.save(); while (true) { if (prevArgs) { prevArgs = false; } else { value = parsers.detachedRuleset() || this.assignment() || parsers.expression(); if (!value) { break; } if (value.value && value.value.length == 1) { value = value.value[0]; } argsComma.push(value); } if (parserInput.$char(',')) { continue; } if (parserInput.$char(';') || isSemiColonSeparated) { isSemiColonSeparated = true; value = (argsComma.length < 1) ? argsComma[0] : new tree.Value(argsComma); argsSemiColon.push(value); argsComma = []; } } parserInput.forget(); return isSemiColonSeparated ? argsSemiColon : argsComma; }, literal: function () { return this.dimension() || this.color() || this.quoted() || this.unicodeDescriptor(); }, // Assignments are argument entities for calls. // They are present in ie filter properties as shown below. // // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) // assignment: function () { var key; var value; parserInput.save(); key = parserInput.$re(/^\w+(?=\s?=)/i); if (!key) { parserInput.restore(); return; } if (!parserInput.$char('=')) { parserInput.restore(); return; } value = parsers.entity(); if (value) { parserInput.forget(); return new (tree.Assignment)(key, value); } else { parserInput.restore(); } }, // // Parse url() tokens // // We use a specific rule for urls, because they don't really behave like // standard function calls. The difference is that the argument doesn't have // to be enclosed within a string, so it can't be parsed as an Expression. // url: function () { var value; var index = parserInput.i; parserInput.autoCommentAbsorb = false; if (!parserInput.$str('url(')) { parserInput.autoCommentAbsorb = true; return; } value = this.quoted() || this.variable() || this.property() || parserInput.$re(/^(?:(?:\\[\(\)'"])|[^\(\)'"])+/) || ''; parserInput.autoCommentAbsorb = true; expectChar(')'); return new (tree.URL)((value.value != null || value instanceof tree.Variable || value instanceof tree.Property) ? value : new (tree.Anonymous)(value, index), 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 ch; var name; var index = parserInput.i; parserInput.save(); if (parserInput.currentChar() === '@' && (name = parserInput.$re(/^@@?[\w-]+/))) { ch = parserInput.currentChar(); if (ch === '(' || ch === '[' && !parserInput.prevChar().match(/^\s/)) { // this may be a VariableCall lookup var result = parsers.variableCall(name); if (result) { parserInput.forget(); return result; } } parserInput.forget(); return new (tree.Variable)(name, index, fileInfo); } parserInput.restore(); }, // A variable entity using the protective {} e.g. @{var} variableCurly: function () { var curly; var index = parserInput.i; if (parserInput.currentChar() === '@' && (curly = parserInput.$re(/^@\{([\w-]+)\}/))) { return new (tree.Variable)("@" + curly[1], index, fileInfo); } }, // // A Property accessor, such as `$color`, in // // background-color: $color // property: function () { var name; var index = parserInput.i; if (parserInput.currentChar() === '$' && (name = parserInput.$re(/^\$[\w-]+/))) { return new (tree.Property)(name, index, fileInfo); } }, // A property entity useing the protective {} e.g. ${prop} propertyCurly: function () { var curly; var index = parserInput.i; if (parserInput.currentChar() === '$' && (curly = parserInput.$re(/^\$\{([\w-]+)\}/))) { return new (tree.Property)("$" + curly[1], index, fileInfo); } }, // // A Hexadecimal color // // #4F3C2F // // `rgb` and `hsl` colors are parsed through the `entities.call` parser. // color: function () { var rgb; parserInput.save(); if (parserInput.currentChar() === '#' && (rgb = parserInput.$re(/^#([A-Fa-f0-9]{8}|[A-Fa-f0-9]{6}|[A-Fa-f0-9]{3,4})([\w.#\[])?/))) { if (!rgb[2]) { parserInput.forget(); return new (tree.Color)(rgb[1], undefined, rgb[0]); } } parserInput.restore(); }, colorKeyword: function () { parserInput.save(); var autoCommentAbsorb = parserInput.autoCommentAbsorb; parserInput.autoCommentAbsorb = false; var k = parserInput.$re(/^[_A-Za-z-][_A-Za-z0-9-]+/); parserInput.autoCommentAbsorb = autoCommentAbsorb; if (!k) { parserInput.forget(); return; } parserInput.restore(); var color = tree.Color.fromKeyword(k); if (color) { parserInput.$str(k); return color; } }, // // 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; var index = parserInput.i; parserInput.save(); var escape = parserInput.$char('~'); var jsQuote = parserInput.$char('`'); if (!jsQuote) { parserInput.restore(); return; } js = parserInput.$re(/^[^`]*`/); if (js) { parserInput.forget(); return new (tree.JavaScript)(js.substr(0, js.length - 1), Boolean(escape), index, fileInfo); } parserInput.restore('invalid javascript definition'); } }, // // The variable part of a variable definition. Used in the `rule` parser // // @fink: // variable: function () { var name; if (parserInput.currentChar() === '@' && (name = parserInput.$re(/^(@[\w-]+)\s*:/))) { return name[1]; } }, // // Call a variable value to retrieve a detached ruleset // or a value from a detached ruleset's rules. // // @fink(); // @fink; // color: @fink[@color]; // variableCall: function (parsedName) { var lookups; var i = parserInput.i; var inValue = !!parsedName; var name = parsedName; parserInput.save(); if (name || (parserInput.currentChar() === '@' && (name = parserInput.$re(/^(@[\w-]+)(\(\s*\))?/)))) { lookups = this.mixin.ruleLookups(); if (!lookups && ((inValue && parserInput.$str('()') !== '()') || (name[2] !== '()'))) { parserInput.restore('Missing \'[...]\' lookup in variable call'); return; } if (!inValue) { name = name[1]; } var call = new tree.VariableCall(name, i, fileInfo); if (!inValue && parsers.end()) { parserInput.forget(); return call; } else { parserInput.forget(); return new tree.NamespaceValue(call, lookups, i, fileInfo); } } parserInput.restore(); }, // // extend syntax - used to extend selectors // extend: function (isRule) { var elements; var e; var index = parserInput.i; var option; var extendList; var extend; if (!parserInput.$str(isRule ? '&:extend(' : ':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, fileInfo); 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); // #mixins.square(#fff); // .rounded(4px, black); // .button; // // We can lookup / return a value using the lookup syntax: // // color: #mixin.square(#fff)[@color]; // // The `while` loop is there because mixins can be // namespaced, but we only support the child and descendant // selector for now. // call: function (inValue, getLookup) { var s = parserInput.currentChar(); var important = false; var lookups; var index = parserInput.i; var elements; var args; var hasParens; if (s !== '.' && s !== '#') { return; } parserInput.save(); // stop us absorbing part of an invalid selector elements = this.elements(); if (elements) { if (parserInput.$char('(')) { args = this.args(true).args; expectChar(')'); hasParens = true; } if (getLookup !== false) { lookups = this.ruleLookups(); } if (getLookup === true && !lookups) { parserInput.restore(); return; } if (inValue && !lookups && !hasParens) { // This isn't a valid in-value mixin call parserInput.restore(); return; } if (!inValue && parsers.important()) { important = true; } if (inValue || parsers.end()) { parserInput.forget(); var mixin = new (tree.mixin.Call)(elements, args, index, fileInfo, !lookups && important); if (lookups) { return new tree.NamespaceValue(mixin, lookups); } else { return mixin; } } } parserInput.restore(); }, /** * Matching elements for mixins * (Start with . or # and can have > ) */ elements: function () { var elements; var e; var c; var elem; var elemIndex; var re = /^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/; while (true) { elemIndex = parserInput.i; e = parserInput.$re(re); if (!e) { break; } elem = new (tree.Element)(c, e, false, elemIndex, fileInfo); if (elements) { elements.push(elem); } else { elements = [elem]; } c = parserInput.$char('>'); } return elements; }, args: function (isCall) { var entities = parsers.entities; var returner = { args: null, variadic: false }; var expressions = []; var argsSemiColon = []; var argsComma = []; var isSemiColonSeparated; var expressionContainsNamed; var name; var nameLoop; var value; var arg; var expand; var hasSep = true; parserInput.save(); while (true) { if (isCall) { arg = parsers.detachedRuleset() || parsers.expression(); } else { parserInput.commentStore.length = 0; if (parserInput.$str('...')) { returner.variadic = true; if (parserInput.$char(';') && !isSemiColonSeparated) { isSemiColonSeparated = true; } (isSemiColonSeparated ? argsSemiColon : argsComma) .push({ variadic: true }); break; } arg = entities.variable() || entities.property() || entities.literal() || entities.keyword() || this.call(true); } if (!arg || !hasSep) { break; } nameLoop = null; if (arg.throwAwayComments) { arg.throwAwayComments(); } value = arg; var val = null; if (isCall) { // Variable if (arg.value && arg.value.length == 1) { val = arg.value[0]; } } else { val = arg; } if (val && (val instanceof tree.Variable || val instanceof tree.Property)) { if (parserInput.$char(':')) { if (expressions.length > 0) { if (isSemiColonSeparated) { error('Cannot mix ; and , as delimiter types'); } expressionContainsNamed = true; } value = 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 (parserInput.$str('...')) { if (!isCall) { returner.variadic = true; if (parserInput.$char(';') && !isSemiColonSeparated) { isSemiColonSeparated = true; } (isSemiColonSeparated ? argsSemiColon : argsComma) .push({ name: arg.name, variadic: true }); break; } else { expand = true; } } else if (!isCall) { name = nameLoop = val.name; value = null; } } if (value) { expressions.push(value); } argsComma.push({ name: nameLoop, value: value, expand: expand }); if (parserInput.$char(',')) { hasSep = true; continue; } hasSep = parserInput.$char(';') === ';'; if (hasSep || isSemiColonSeparated) { if (expressionContainsNamed) { error('Cannot mix ; and , as delimiter types'); } isSemiColonSeparated = true; if (expressions.length > 1) { value = new (tree.Value)(expressions); } argsSemiColon.push({ name: name, value: value, expand: expand }); name = null; expressions = []; expressionContainsNamed = false; } } parserInput.forget(); returner.args = isSemiColonSeparated ? 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; var params = []; var match; var ruleset; var cond; var 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.$char(')')) { parserInput.restore('Missing closing \')\''); return; } parserInput.commentStore.length = 0; if (parserInput.$str('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.restore(); } }, ruleLookups: function () { var rule; var lookups = []; if (parserInput.currentChar() !== '[') { return; } while (true) { parserInput.save(); rule = this.lookupValue(); if (!rule && rule !== '') { parserInput.restore(); break; } lookups.push(rule); parserInput.forget(); } if (lookups.length > 0) { return lookups; } }, lookupValue: function () { parserInput.save(); if (!parserInput.$char('[')) { parserInput.restore(); return; } var name = parserInput.$re(/^(?:[@$]{0,2})[_a-zA-Z0-9-]*/); if (!parserInput.$char(']')) { parserInput.restore(); return; } if (name || name === '') { parserInput.forget(); return name; } parserInput.restore(); } }, // // 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.property() || entities.call() || entities.keyword() || this.mixin.call(true) || entities.javascript(); }, // // A Declaration 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 omitted. // end: function () { return parserInput.$char(';') || parserInput.peek('}'); }, // // IE's alpha function // // alpha(opacity=88) // ieAlpha: function () { var value; // http://jsperf.com/case-insensitive-regex-vs-strtolower-then-regex/18 if (!parserInput.$re(/^opacity=/i)) { return; } value = parserInput.$re(/^\d+/); if (!value) { value = expect(parsers.entities.variable, 'Could not parse alpha'); value = "@{" + value.name.slice(1) + "}"; } expectChar(')'); return new tree.Quoted('', "alpha(opacity=" + value + ")"); }, // // A Selector Element // // div // + h1 // #socks // input[type="text"] // // Elements are the building blocks for Selectors, // they are made out of a `Combinator` (see combinator rule), // and an element name, such as a tag a class, or `*`. // element: function () { var e; var c; var v; var index = parserInput.i; c = this.combinator(); e = parserInput.$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(false)) && parserInput.$char(')')) { e = new (tree.Paren)(v); parserInput.forget(); } else { parserInput.restore('Missing closing \')\''); } } else { parserInput.forget(); } } if (e) { return new (tree.Element)(c, e, e instanceof tree.Variable, index, fileInfo); } }, // // Combinators combine elements together, in a Selector. // // Because our parser isn't white-space sensitive, special care // has to be taken, when parsing the descendant combinator, ` `, // as it's an empty space. We have to check the previous character // in the input, to see if it's a ` ` character. More info on how // we deal with this in *combinator.js*. // combinator: function () { var c = parserInput.currentChar(); if (c === '/') { parserInput.save(); var slashedCombinator = parserInput.$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 // with less extensions e.g. the ability to extend and guard // // .class > div + h1 // li a:hover // // Selectors are made out of one or more Elements, see above. // selector: function (isLess) { var index = parserInput.i; var elements; var extendList; var c; var e; var allExtends; var when; var condition; isLess = isLess !== false; while ((isLess && (extendList = this.extend())) || (isLess && (when = parserInput.$str('when'))) || (e = this.element())) { if (when) { condition = expect(this.conditions, 'expected condition'); } else if (condition) { error('CSS guard can only be used at the end of selector'); } else if (extendList) { if (allExtends) { allExtends = allExtends.concat(extendList); } else { allExtends = extendList; } } else { if (allExtends) { error('Extend can only be used at the end of selector'); } c = parserInput.currentChar(); if (elements) { elements.push(e); } else { elements = [e]; } e = null; } if (c === '{' || c === '}' || c === ';' || c === ',' || c === ')') { break; } } if (elements) { return new (tree.Selector)(elements, allExtends, condition, index, fileInfo); } if (allExtends) { error('Extend must be used to extend a selector, it cannot be used on its own'); } }, selectors: function () { var s; var selectors; while (true) { s = this.selector(); if (!s) { break; } if (selectors) { selectors.push(s); } else { selectors = [s]; } parserInput.commentStore.length = 0; if (s.condition && selectors.length > 1) { error("Guards are only currently allowed on a single selector."); } if (!parserInput.$char(',')) { break; } if (s.condition) { error("Guards are only currently allowed on a single selector."); } parserInput.commentStore.length = 0; } return selectors; }, attribute: function () { if (!parserInput.$char('[')) { return; } var entities = this.entities; var key; var val; var op; if (!(key = entities.variableCurly())) { key = expect(/^(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\.)+/); } op = parserInput.$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.$char('}')) { return content; } }, blockRuleset: function () { var block = this.block(); if (block) { block = new tree.Ruleset(null, block); } return block; }, detachedRuleset: function () { var argInfo; var params; var variadic; parserInput.save(); if (parserInput.$re(/^[.#]\(/)) { /** * DR args currently only implemented for each() function, and not * yet settable as `@dr: #(@arg) {}` * This should be done when DRs are merged with mixins. * See: https://github.com/less/less-meta/issues/16 */ argInfo = this.mixin.args(false); params = argInfo.args; variadic = argInfo.variadic; if (!parserInput.$char(')')) { parserInput.restore(); return; } } var blockRuleset = this.blockRuleset(); if (blockRuleset) { parserInput.forget(); if (params) { return new tree.mixin.Definition(null, params, blockRuleset, null, variadic); } return new tree.DetachedRuleset(blockRuleset); } parserInput.restore(); }, // // div, .class, body > p {...} // ruleset: function () { var selectors; var rules; var debugInfo; parserInput.save(); if (context.dumpLineNumbers) { debugInfo = getDebugInfo(parserInput.i); } selectors = this.selectors(); 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(); } }, declaration: function () { var name; var value; var index = parserInput.i; var hasDR; var c = parserInput.currentChar(); var important; var merge; var isVariable; if (c === '.' || c === '#' || c === '&' || c === ':') { return; } parserInput.save(); name = this.variable() || this.ruleProperty(); if (name) { isVariable = typeof name === 'string'; if (isVariable) { value = this.detachedRuleset(); if (value) { hasDR = true; } } 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.length > 1 && name.pop().value; // Custom property values get permissive parsing if (name[0].value && name[0].value.slice(0, 2) === '--') { value = this.permissiveValue(); } // Try to store values as anonymous // If we need the value later we'll re-parse it in ruleset.parseValue else { value = this.anonymousValue(); } if (value) { parserInput.forget(); // anonymous values absorb the end ';' which is required for them to work return new (tree.Declaration)(name, value, false, merge, index, fileInfo); } if (!value) { value = this.value(); } if (value) { important = this.important(); } else if (isVariable) { // As a last resort, try permissiveValue value = this.permissiveValue(); } } if (value && (this.end() || hasDR)) { parserInput.forget(); return new (tree.Declaration)(name, value, important, merge, index, fileInfo); } else { parserInput.restore(); } } else { parserInput.restore(); } }, anonymousValue: function () { var index = parserInput.i; var match = parserInput.$re(/^([^.#@\$+\/'"*`(;{}-]*);/); if (match) { return new (tree.Anonymous)(match[1], index); } }, /** * Used for custom properties, at-rules, and variables (as fallback) * Parses almost anything inside of {} [] () "" blocks * until it reaches outer-most tokens. * * First, it will try to parse comments and entities to reach * the end. This is mostly like the Expression parser except no * math is allowed. */ permissiveValue: function (untilTokens) { var i; var e; var done; var value; var tok = untilTokens || ';'; var index = parserInput.i; var result = []; function testCurrentChar() { var char = parserInput.currentChar(); if (typeof tok === 'string') { return char === tok; } else { return tok.test(char); } } if (testCurrentChar()) { return; } value = []; do { e = this.comment(); if (e) { value.push(e); continue; } e = this.entity(); if (e) { value.push(e); } } while (e); done = testCurrentChar(); if (value.length > 0) { value = new (tree.Expression)(value); if (done) { return value; } else { result.push(value); } // Preserve space before $parseUntil as it will not if (parserInput.prevChar() === ' ') { result.push(new tree.Anonymous(' ', index)); } } parserInput.save(); value = parserInput.$parseUntil(tok); if (value) { if (typeof value === 'string') { error("Expected '" + value + "'", 'Parse'); } if (value.length === 1 && value[0] === ' ') { parserInput.forget(); return new tree.Anonymous('', index); } var item = void 0; for (i = 0; i < value.length; i++) { item = value[i]; if (Array.isArray(item)) { // Treat actual quotes as normal quoted values result.push(new tree.Quoted(item[0], item[1], true, index, fileInfo)); } else { if (i === value.length - 1) { item = item.trim(); } // Treat like quoted values, but replace vars like unquoted expressions var quote = new tree.Quoted('\'', item, true, index, fileInfo); quote.variableRegex = /@([\w-]+)/g; quote.propRegex = /\$([\w-]+)/g; result.push(quote); } } parserInput.forget(); return new tree.Expression(result, true); } parserInput.restore(); }, // // An @import atrule // // @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; var features; var index = parserInput.i; var dir = parserInput.$re(/^@import?\s+/); if (dir) { var options_1 = (dir ? this.importOptions() : null) || {}; if ((path = this.entities.quoted() || this.entities.url())) { features = this.mediaFeatures(); if (!parserInput.$char(';')) { 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_1, index, fileInfo); } else { parserInput.i = index; error('malformed import statement'); } } }, importOptions: function () { var o; var options = {}; var optionName; var 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|optional)/); if (opt) { return opt[1]; } }, mediaFeature: function () { var entities = this.entities; var nodes = []; var e; var p; parserInput.save(); do { e = entities.keyword() || entities.variable() || entities.mixinLookup(); 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.Declaration)(p, e, null, null, parserInput.i, fileInfo, true))); } else if (e) { nodes.push(new (tree.Paren)(e)); } else { error('badly formed media feature definition'); } } else { error('Missing closing \')\'', 'Parse'); } } } while (e); parserInput.forget(); if (nodes.length > 0) { return new (tree.Expression)(nodes); } }, mediaFeatures: function () { var entities = this.entities; var features = []; var e; do { e = this.mediaFeature(); if (e) { features.push(e); if (!parserInput.$char(',')) { break; } } else { e = entities.variable() || entities.mixinLookup(); if (e) { features.push(e); if (!parserInput.$char(',')) { break; } } } } while (e); return features.length > 0 ? features : null; }, media: function () { var features; var rules; var media; var debugInfo; var index = parserInput.i; if (context.dumpLineNumbers) { debugInfo = getDebugInfo(index); } parserInput.save(); if (parserInput.$str('@media')) { features = this.mediaFeatures(); rules = this.block(); if (!rules) { error('media definitions require block statements after any features'); } parserInput.forget(); media = new (tree.Media)(rules, features, index, fileInfo); if (context.dumpLineNumbers) { media.debugInfo = debugInfo; } return media; } parserInput.restore(); }, // // A @plugin directive, used to import plugins dynamically. // // @plugin (args) "lib"; // plugin: function () { var path; var args; var options; var index = parserInput.i; var dir = parserInput.$re(/^@plugin?\s+/); if (dir) { args = this.pluginArgs(); if (args) { options = { pluginArgs: args, isPlugin: true }; } else { options = { isPlugin: true }; } if ((path = this.entities.quoted() || this.entities.url())) { if (!parserInput.$char(';')) { parserInput.i = index; error('missing semi-colon on @plugin'); } return new (tree.Import)(path, null, options, index, fileInfo); } else { parserInput.i = index; error('malformed @plugin statement'); } } }, pluginArgs: function () { // list of options, surrounded by parens parserInput.save(); if (!parserInput.$char('(')) { parserInput.restore(); return null; } var args = parserInput.$re(/^\s*([^\);]+)\)\s*/); if (args[1]) { parserInput.forget(); return args[1].trim(); } else { parserInput.restore(); return null; } }, // // A CSS AtRule // // @charset "utf-8"; // atrule: function () { var index = parserInput.i; var name; var value; var rules; var nonVendorSpecificName; var hasIdentifier; var hasExpression; var hasUnknown; var hasBlock = true; var isRooted = true; if (parserInput.currentChar() !== '@') { return; } value = this['import']() || this.plugin() || this.media(); if (value) { return value; } parserInput.save(); name = parserInput.$re(/^@[a-z-]+/); if (!name) { return; } nonVendorSpecificName = name; if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) { nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1); } switch (nonVendorSpecificName) { case '@charset': hasIdentifier = true; hasBlock = false; break; case '@namespace': hasExpression = true; hasBlock = false; break; case '@keyframes': case '@counter-style': hasIdentifier = true; break; case '@document': case '@supports': hasUnknown = true; isRooted = false; break; default: hasUnknown = true; break; } parserInput.commentStore.length = 0; if (hasIdentifier) { value = this.entity(); if (!value) { error("expected " + name + " identifier"); } } else if (hasExpression) { value = this.expression(); if (!value) { error("expected " + name + " expression"); } } else if (hasUnknown) { value = this.permissiveValue(/^[{;]/); hasBlock = (parserInput.currentChar() === '{'); if (!value) { if (!hasBlock && parserInput.currentChar() !== ';') { error(name + " rule is missing block or ending semi-colon"); } } else if (!value.value) { value = null; } } if (hasBlock) { rules = this.blockRuleset(); } if (rules || (!hasBlock && value && parserInput.$char(';'))) { parserInput.forget(); return new (tree.AtRule)(name, value, rules, index, fileInfo, context.dumpLineNumbers ? getDebugInfo(index) : null, isRooted); } parserInput.restore('at-rule 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; var expressions = []; var index = parserInput.i; do { e = this.expression(); if (e) { expressions.push(e); if (!parserInput.$char(',')) { break; } } } while (e); if (expressions.length > 0) { return new (tree.Value)(expressions, index); } }, important: function () { if (parserInput.currentChar() === '!') { return parserInput.$re(/^! *important/); } }, sub: function () { var a; var e; parserInput.save(); if (parserInput.$char('(')) { a = this.addition(); if (a && parserInput.$char(')')) { parserInput.forget(); e = new (tree.Expression)([a]); e.parens = true; return e; } parserInput.restore('Expected \')\''); return; } parserInput.restore(); }, multiplication: function () { var m; var a; var op; var operation; var isSpaced; m = this.operand(); if (m) { isSpaced = parserInput.isWhitespace(-1); while (true) { if (parserInput.peek(/^\/[*\/]/)) { break; } parserInput.save(); op = parserInput.$char('/') || parserInput.$char('*') || parserInput.$str('./'); if (!op) { parserInput.forget(); break; } a = this.operand(); if (!a) { parserInput.restore(); break; } parserInput.forget(); m.parensInOp = true; a.parensInOp = true; operation = new (tree.Operation)(op, [operation || m, a], isSpaced); isSpaced = parserInput.isWhitespace(-1); } return operation || m; } }, addition: function () { var m; var a; var op; var operation; var isSpaced; m = this.multiplication(); if (m) { isSpaced = parserInput.isWhitespace(-1); while (true) { op = parserInput.$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; var b; var index = parserInput.i; var condition; a = this.condition(true); if (a) { while (true) { if (!parserInput.peek(/^,\s*(not\s*)?\(/) || !parserInput.$char(',')) { break; } b = this.condition(true); if (!b) { break; } condition = new (tree.Condition)('or', condition || a, b, index); } return condition || a; } }, condition: function (needsParens) { var result; var logical; var next; function or() { return parserInput.$str('or'); } result = this.conditionAnd(needsParens); if (!result) { return; } logical = or(); if (logical) { next = this.condition(needsParens); if (next) { result = new (tree.Condition)(logical, result, next); } else { return; } } return result; }, conditionAnd: function (needsParens) { var result; var logical; var next; var self = this; function insideCondition() { var cond = self.negatedCondition(needsParens) || self.parenthesisCondition(needsParens); if (!cond && !needsParens) { return self.atomicCondition(needsParens); } return cond; } function and() { return parserInput.$str('and'); } result = insideCondition(); if (!result) { return; } logical = and(); if (logical) { next = this.conditionAnd(needsParens); if (next) { result = new (tree.Condition)(logical, result, next); } else { return; } } return result; }, negatedCondition: function (needsParens) { if (parserInput.$str('not')) { var result = this.parenthesisCondition(needsParens); if (result) { result.negate = !result.negate; } return result; } }, parenthesisCondition: function (needsParens) { function tryConditionFollowedByParenthesis(me) { var body; parserInput.save(); body = me.condition(needsParens); if (!body) { parserInput.restore(); return; } if (!parserInput.$char(')')) { parserInput.restore(); return; } parserInput.forget(); return body; } var body; parserInput.save(); if (!parserInput.$str('(')) { parserInput.restore(); return; } body = tryConditionFollowedByParenthesis(this); if (body) { parserInput.forget(); return body; } body = this.atomicCondition(needsParens); if (!body) { parserInput.restore(); return; } if (!parserInput.$char(')')) { parserInput.restore("expected ')' got '" + parserInput.currentChar() + "'"); return; } parserInput.forget(); return body; }, atomicCondition: function (needsParens) { var entities = this.entities; var index = parserInput.i; var a; var b; var c; var op; function cond() { return this.addition() || entities.keyword() || entities.quoted() || entities.mixinLookup(); } cond = cond.bind(this); a = cond(); if (a) { if (parserInput.$char('>')) { if (parserInput.$char('=')) { op = '>='; } else { op = '>'; } } else if (parserInput.$char('<')) { if (parserInput.$char('=')) { op = '<='; } else { op = '<'; } } else if (parserInput.$char('=')) { if (parserInput.$char('>')) { op = '=>'; } else if (parserInput.$char('<')) { op = '=<'; } else { op = '='; } } if (op) { b = cond(); if (b) { c = new (tree.Condition)(op, a, b, index, false); } else { error('expected expression'); } } else { c = new (tree.Condition)('=', a, new (tree.Keyword)('true'), index, false); } return 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; var negate; if (parserInput.peek(/^-[@\$\(]/)) { negate = parserInput.$char('-'); } var o = this.sub() || entities.dimension() || entities.color() || entities.variable() || entities.property() || entities.call() || entities.quoted(true) || entities.colorKeyword() || entities.mixinLookup(); if (negate) { o.parensInOp = true; o = new (tree.Negative)(o); } return o; }, // // Expressions either represent mathematical operations, // or white-space delimited Entities. // // 1px solid black // @var * 2 // expression: function () { var entities = []; var e; var delim; var index = parserInput.i; do { e = this.comment(); if (e) { entities.push(e); continue; } e = this.addition() || this.entity(); if (e instanceof tree.Comment) { e = null; } if (e) { entities.push(e); // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here if (!parserInput.peek(/^\/[\/*]/)) { delim = parserInput.$char('/'); if (delim) { entities.push(new (tree.Anonymous)(delim, index)); } } } } while (e); if (entities.length > 0) { return new (tree.Expression)(entities); } }, property: function () { var name = parserInput.$re(/^(\*?-?[_a-zA-Z0-9-]+)\s*:/); if (name) { return name[1]; } }, ruleProperty: function () { var name = []; var index = []; var s; var k; parserInput.save(); var simpleProperty = parserInput.$re(/^([_a-zA-Z0-9-]+)\s*:/); if (simpleProperty) { name = [new (tree.Keyword)(simpleProperty[1])]; parserInput.forget(); return name; } function match(re) { var i = parserInput.i; var chunk = parserInput.$re(re); if (chunk) { index.push(i); return name.push(chunk[1]); } } match(/^(\*?)/); while (true) { if (!match(/^((?:[\w-]+)|(?:[@\$]\{[\w-]+\}))/)) { break; } } if ((name.length > 1) && match(/^((?:\+_|\+)?)\s*:/)) { parserInput.forget(); // at last, we have the complete match now. move forward, // convert name particles to tree objects and return: if (name[0] === '') { name.shift(); index.shift(); } for (k = 0; k < name.length; k++) { s = name[k]; name[k] = (s.charAt(0) !== '@' && s.charAt(0) !== '$') ? new (tree.Keyword)(s) : (s.charAt(0) === '@' ? new (tree.Variable)("@" + s.slice(2, -1), index[k], fileInfo) : new (tree.Property)("$" + s.slice(2, -1), index[k], fileInfo)); } return name; } parserInput.restore(); } } }; }; Parser.serializeVars = function (vars) { var s = ''; for (var name_1 in vars) { if (Object.hasOwnProperty.call(vars, name_1)) { var value = vars[name_1]; s += ((name_1[0] === '@') ? '' : '@') + name_1 + ": " + value + ((String(value).slice(-1) === ';') ? '' : ';'); } } return s; }; function boolean(condition) { return condition ? Keyword.True : Keyword.False; } function If(condition, trueValue, falseValue) { return condition ? trueValue : (falseValue || new Anonymous); } var boolean$1 = { boolean: boolean, 'if': If }; var colorFunctions; function clamp$1(val) { return Math.min(1, Math.max(0, val)); } function hsla(origColor, hsl) { var color = colorFunctions.hsla(hsl.h, hsl.s, hsl.l, hsl.a); if (color) { if (origColor.value && /^(rgb|hsl)/.test(origColor.value)) { color.value = origColor.value; } else { color.value = 'rgb'; } return color; } } function toHSL(color) { if (color.toHSL) { return color.toHSL(); } else { throw new Error('Argument cannot be evaluated to a color'); } } function toHSV(color) { if (color.toHSV) { return color.toHSV(); } else { throw new Error('Argument cannot be evaluated to a color'); } } 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) { var color = colorFunctions.rgba(r, g, b, 1.0); if (color) { color.value = 'rgb'; return color; } }, rgba: function (r, g, b, a) { try { if (r instanceof Color) { if (g) { a = number(g); } else { a = r.alpha; } return new Color(r.rgb, a, 'rgba'); } var rgb = [r, g, b].map(function (c) { return scaled(c, 255); }); a = number(a); return new Color(rgb, a, 'rgba'); } catch (e) { } }, hsl: function (h, s, l) { var color = colorFunctions.hsla(h, s, l, 1.0); if (color) { color.value = 'hsl'; return color; } }, hsla: function (h, s, l, a) { try { if (h instanceof Color) { if (s) { a = number(s); } else { a = h.alpha; } return new Color(h.rgb, a, 'hsla'); } var m1_1; var m2_1; function hue(h) { h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); if (h * 6 < 1) { return m1_1 + (m2_1 - m1_1) * h * 6; } else if (h * 2 < 1) { return m2_1; } else if (h * 3 < 2) { return m1_1 + (m2_1 - m1_1) * (2 / 3 - h) * 6; } else { return m1_1; } } h = (number(h) % 360) / 360; s = clamp$1(number(s)); l = clamp$1(number(l)); a = clamp$1(number(a)); m2_1 = l <= 0.5 ? l * (s + 1) : l + s - l * s; m1_1 = l * 2 - m2_1; var rgb = [ hue(h + 1 / 3) * 255, hue(h) * 255, hue(h - 1 / 3) * 255 ]; a = number(a); return new Color(rgb, a, 'hsla'); } catch (e) { } }, 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; var 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(toHSL(color).h); }, saturation: function (color) { return new Dimension(toHSL(color).s * 100, '%'); }, lightness: function (color) { return new Dimension(toHSL(color).l * 100, '%'); }, hsvhue: function (color) { return new Dimension(toHSV(color).h); }, hsvsaturation: function (color) { return new Dimension(toHSV(color).s * 100, '%'); }, hsvvalue: function (color) { return new Dimension(toHSV(color).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(toHSL(color).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, method) { // filter: saturate(3.2); // should be kept as is, so check for color if (!color.rgb) { return null; } var hsl = toHSL(color); if (typeof method !== 'undefined' && method.value === 'relative') { hsl.s += hsl.s * amount.value / 100; } else { hsl.s += amount.value / 100; } hsl.s = clamp$1(hsl.s); return hsla(color, hsl); }, desaturate: function (color, amount, method) { var hsl = toHSL(color); if (typeof method !== 'undefined' && method.value === 'relative') { hsl.s -= hsl.s * amount.value / 100; } else { hsl.s -= amount.value / 100; } hsl.s = clamp$1(hsl.s); return hsla(color, hsl); }, lighten: function (color, amount, method) { var hsl = toHSL(color); if (typeof method !== 'undefined' && method.value === 'relative') { hsl.l += hsl.l * amount.value / 100; } else { hsl.l += amount.value / 100; } hsl.l = clamp$1(hsl.l); return hsla(color, hsl); }, darken: function (color, amount, method) { var hsl = toHSL(color); if (typeof method !== 'undefined' && method.value === 'relative') { hsl.l -= hsl.l * amount.value / 100; } else { hsl.l -= amount.value / 100; } hsl.l = clamp$1(hsl.l); return hsla(color, hsl); }, fadein: function (color, amount, method) { var hsl = toHSL(color); if (typeof method !== 'undefined' && method.value === 'relative') { hsl.a += hsl.a * amount.value / 100; } else { hsl.a += amount.value / 100; } hsl.a = clamp$1(hsl.a); return hsla(color, hsl); }, fadeout: function (color, amount, method) { var hsl = toHSL(color); if (typeof method !== 'undefined' && method.value === 'relative') { hsl.a -= hsl.a * amount.value / 100; } else { hsl.a -= amount.value / 100; } hsl.a = clamp$1(hsl.a); return hsla(color, hsl); }, fade: function (color, amount) { var hsl = toHSL(color); hsl.a = amount.value / 100; hsl.a = clamp$1(hsl.a); return hsla(color, hsl); }, spin: function (color, amount) { var hsl = toHSL(color); var hue = (hsl.h + amount.value) % 360; hsl.h = hue < 0 ? 360 + hue : hue; return hsla(color, hsl); }, // // Copyright (c) 2006-2009 Hampton Catlin, Natalie 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 = toHSL(color1).a - toHSL(color2).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; } }, // Changes made in 2.7.0 - Reverted in 3.0.0 // contrast: function (color, color1, color2, threshold) { // // Return which of `color1` and `color2` has the greatest contrast with `color` // // according to the standard WCAG contrast ratio calculation. // // http://www.w3.org/TR/WCAG20/#contrast-ratiodef // // The threshold param is no longer used, in line with SASS. // // filter: contrast(3.2); // // should be kept as is, so check for color // if (!color.rgb) { // return null; // } // if (typeof color1 === 'undefined') { // color1 = colorFunctions.rgba(0, 0, 0, 1.0); // } // if (typeof color2 === 'undefined') { // color2 = colorFunctions.rgba(255, 255, 255, 1.0); // } // var contrast1, contrast2; // var luma = color.luma(); // var luma1 = color1.luma(); // var luma2 = color2.luma(); // // Calculate contrast ratios for each color // if (luma > luma1) { // contrast1 = (luma + 0.05) / (luma1 + 0.05); // } else { // contrast1 = (luma1 + 0.05) / (luma + 0.05); // } // if (luma > luma2) { // contrast2 = (luma + 0.05) / (luma2 + 0.05); // } else { // contrast2 = (luma2 + 0.05) / (luma + 0.05); // } // if (contrast1 > contrast2) { // return color1; // } else { // return color2; // } // }, argb: function (color) { return new Anonymous(color.toARGB()); }, color: function (c) { if ((c instanceof Quoted) && (/^#([A-Fa-f0-9]{8}|[A-Fa-f0-9]{6}|[A-Fa-f0-9]{3,4})$/i.test(c.value))) { var val = c.value.slice(1); return new Color(val, undefined, "#" + val); } if ((c instanceof Color) || (c = Color.fromKeyword(c.value))) { c.value = undefined; return c; } throw { type: 'Argument', message: 'argument must be a color keyword or 3|4|6|8 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); } }; var color = colorFunctions; // Color Blending // ref: http://www.w3.org/TR/compositing-1 function colorBlend(mode, color1, color2) { var ab = color1.alpha; // result var // backdrop cb; var as = color2.alpha; var // source cs; var ar; var cr; var r = []; ar = as + ab * (1 - as); for (var i_1 = 0; i_1 < 3; i_1++) { cb = color1.rgb[i_1] / 255; cs = color2.rgb[i_1] / 255; cr = mode(cb, cs); if (ar) { cr = (as * cs + ab * (cb - as * (cb + cs - cr))) / ar; } r[i_1] = 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; var 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]); } } var dataUri = (function (environment) { var fallback = function (functionThis, node) { return new URL(node, functionThis.index, functionThis.currentFileInfo).eval(functionThis.context); }; return { 'data-uri': function (mimetypeNode, filePathNode) { if (!filePathNode) { filePathNode = mimetypeNode; mimetypeNode = null; } var mimetype = mimetypeNode && mimetypeNode.value; var filePath = filePathNode.value; var currentFileInfo = this.currentFileInfo; var currentDirectory = currentFileInfo.rewriteUrls ? currentFileInfo.currentDirectory : currentFileInfo.entryPath; var fragmentStart = filePath.indexOf('#'); var fragment = ''; if (fragmentStart !== -1) { fragment = filePath.slice(fragmentStart); filePath = filePath.slice(0, fragmentStart); } var context = clone(this.context); context.rawBuffer = true; var fileManager = environment.getFileManager(filePath, currentDirectory, context, environment, true); if (!fileManager) { return fallback(this, filePathNode); } var useBase64 = false; // detect the mimetype if not given if (!mimetypeNode) { mimetype = environment.mimeLookup(filePath); if (mimetype === 'image/svg+xml') { useBase64 = false; } else { // 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, context, environment); if (!fileSync.contents) { logger.warn("Skipped data-uri embedding of " + filePath + " because file not found"); return fallback(this, filePathNode || mimetypeNode); } var buf = fileSync.contents; if (useBase64 && !environment.encodeBase64) { return fallback(this, filePathNode); } buf = useBase64 ? environment.encodeBase64(buf) : encodeURIComponent(buf); var uri = "data:" + mimetype + "," + buf + fragment; return new URL(new Quoted("\"" + uri + "\"", uri, false, this.index, this.currentFileInfo), this.index, this.currentFileInfo); } }; }); var getItemsFromNode = function (node) { // handle non-array values as an array of length 1 // return 'undefined' if index is invalid var items = Array.isArray(node.value) ? node.value : Array(node); return items; }; var list = { _SELF: function (n) { return n; }, extract: function (values, index) { // (1-based index) index = index.value - 1; return getItemsFromNode(values)[index]; }, length: function (values) { return new Dimension(getItemsFromNode(values).length); }, /** * Creates a Less list of incremental values. * Modeled after Lodash's range function, also exists natively in PHP * * @param {Dimension} [start=1] * @param {Dimension} end - e.g. 10 or 10px - unit is added to output * @param {Dimension} [step=1] */ range: function (start, end, step) { var from; var to; var stepValue = 1; var list = []; if (end) { to = end; from = start.value; if (step) { stepValue = step.value; } } else { from = 1; to = start; } for (var i_1 = from; i_1 <= to.value; i_1 += stepValue) { list.push(new Dimension(i_1, to.unit)); } return new Expression(list); }, each: function (list, rs) { var rules = []; var newRules; var iterator; if (list.value && !(list instanceof Quoted)) { if (Array.isArray(list.value)) { iterator = list.value; } else { iterator = [list.value]; } } else if (list.ruleset) { iterator = list.ruleset.rules; } else if (list.rules) { iterator = list.rules; } else if (Array.isArray(list)) { iterator = list; } else { iterator = [list]; } var valueName = '@value'; var keyName = '@key'; var indexName = '@index'; if (rs.params) { valueName = rs.params[0] && rs.params[0].name; keyName = rs.params[1] && rs.params[1].name; indexName = rs.params[2] && rs.params[2].name; rs = rs.rules; } else { rs = rs.ruleset; } for (var i_2 = 0; i_2 < iterator.length; i_2++) { var key = void 0; var value = void 0; var item = iterator[i_2]; if (item instanceof Declaration) { key = typeof item.name === 'string' ? item.name : item.name[0].value; value = item.value; } else { key = new Dimension(i_2 + 1); value = item; } if (item instanceof Comment) { continue; } newRules = rs.rules.slice(0); if (valueName) { newRules.push(new Declaration(valueName, value, false, false, this.index, this.currentFileInfo)); } if (indexName) { newRules.push(new Declaration(indexName, new Dimension(i_2 + 1), false, false, this.index, this.currentFileInfo)); } if (keyName) { newRules.push(new Declaration(keyName, key, false, false, this.index, this.currentFileInfo)); } rules.push(new Ruleset([new (Selector)([new Element("", '&')])], newRules, rs.strictImports, rs.visibilityInfo())); } return new Ruleset([new (Selector)([new Element("", '&')])], rules, rs.strictImports, rs.visibilityInfo()).eval(this.context); } }; var MathHelper = function (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); }; var mathFunctions = { // name, unit ceil: null, floor: null, sqrt: null, abs: null, tan: '', sin: '', cos: '', atan: 'rad', asin: 'rad', acos: 'rad' }; for (var f$1 in mathFunctions) { if (mathFunctions.hasOwnProperty(f$1)) { mathFunctions[f$1] = MathHelper.bind(null, Math[f$1], mathFunctions[f$1]); } } mathFunctions.round = function (n, f) { var fraction = typeof f === 'undefined' ? 0 : f.value; return MathHelper(function (num) { return num.toFixed(fraction); }, null, n); }; 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; // key is the unit.toString() for unified Dimension values, var j; var current; var currentUnified; var referenceUnified; var unit; var unitStatic; var unitClone; var // elems only contains original argument values. order = []; var 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 + ")"); }; var number$1 = { min: function () { var args = []; for (var _i = 0; _i < arguments.length; _i++) { args[_i] = arguments[_i]; } return minMax(true, args); }, max: function () { var args = []; for (var _i = 0; _i < arguments.length; _i++) { args[_i] = arguments[_i]; } return minMax(false, args); }, 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) { var result = MathHelper(function (num) { return num * 100; }, '%', n); return result; } }; var string = { e: function (str) { return new Quoted('"', str instanceof JavaScript ? str.evaluated : str.value, true); }, 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; replacement = (replacement.type === 'Quoted') ? replacement.value : replacement.toCSS(); result = result.replace(new RegExp(pattern.value, flags ? flags.value : ''), replacement); return new Quoted(string.quote || '', result, string.escaped); }, '%': function (string /* arg, arg, ... */) { var args = Array.prototype.slice.call(arguments, 1); var result = string.value; var _loop_1 = function (i_1) { /* jshint loopfunc:true */ result = result.replace(/%[sda]/i, function (token) { var value = ((args[i_1].type === 'Quoted') && token.match(/s/i)) ? args[i_1].value : args[i_1].toCSS(); return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; }); }; for (var i_1 = 0; i_1 < args.length; i_1++) { _loop_1(i_1); } result = result.replace(/%%/g, '%'); return new Quoted(string.quote || '', result, string.escaped); } }; var svg = (function (environment) { return { 'svg-gradient': function (direction) { var stops; var gradientDirectionSvg; var gradientType = 'linear'; var rectangleDimension = 'x="0" y="0" width="1" height="1"'; var renderEnv = { compress: false }; var returner; var directionValue = direction.toCSS(renderEnv); var i; var color; var position; var positionValue; var alpha; function throwArgumentDescriptor() { throw { type: 'Argument', message: 'svg-gradient expects direction, start_color [start_position], [color position,]...,' + ' end_color [end_position] or direction, color list' }; } if (arguments.length == 2) { if (arguments[1].value.length < 2) { throwArgumentDescriptor(); } stops = arguments[1].value; } else if (arguments.length < 3) { throwArgumentDescriptor(); } else { stops = Array.prototype.slice.call(arguments, 1); } 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 = "<" + gradientType + "Gradient id=\"g\" " + gradientDirectionSvg + ">"; for (i = 0; i < stops.length; i += 1) { if (stops[i] instanceof Expression) { 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 += ""; } returner += ""; returner = encodeURIComponent(returner); returner = "data:image/svg+xml," + returner; return new URL(new Quoted("'" + returner + "'", returner, false, this.index, this.currentFileInfo), this.index, this.currentFileInfo); } }; }); var isa = function (n, Type) { return (n instanceof Type) ? Keyword.True : Keyword.False; }; var isunit = function (n, unit) { if (unit === undefined) { throw { type: 'Argument', message: 'missing the required second argument to isunit.' }; } unit = typeof unit.value === 'string' ? unit.value : unit; if (typeof unit !== 'string') { throw { type: 'Argument', message: 'Second argument to isunit should be a unit or a string.' }; } return (n instanceof Dimension) && n.unit.is(unit) ? Keyword.True : Keyword.False; }; var types = { isruleset: function (n) { return isa(n, DetachedRuleset); }, 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); } }; var Functions = (function (environment) { var functions = { functionRegistry: functionRegistry, functionCaller: functionCaller }; // register functions functionRegistry.addMultiple(boolean$1); functionRegistry.add('default', defaultFunc.eval.bind(defaultFunc)); functionRegistry.addMultiple(color); functionRegistry.addMultiple(colorBlend); functionRegistry.addMultiple(dataUri(environment)); functionRegistry.addMultiple(list); functionRegistry.addMultiple(mathFunctions); functionRegistry.addMultiple(number$1); functionRegistry.addMultiple(string); functionRegistry.addMultiple(svg()); functionRegistry.addMultiple(types); return functions; }); var sourceMapOutput = (function (environment) { var SourceMapOutput = /** @class */ (function () { function SourceMapOutput(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._lineNumber = 0; this._column = 0; } SourceMapOutput.prototype.removeBasepath = function (path) { if (this._sourceMapBasepath && path.indexOf(this._sourceMapBasepath) === 0) { path = path.substring(this._sourceMapBasepath.length); if (path.charAt(0) === '\\' || path.charAt(0) === '/') { path = path.substring(1); } } return path; }; SourceMapOutput.prototype.normalizeFilename = function (filename) { filename = filename.replace(/\\/g, '/'); filename = this.removeBasepath(filename); return (this._sourceMapRootpath || '') + filename; }; SourceMapOutput.prototype.add = function (chunk, fileInfo, index, mapLines) { // ignore adding empty strings if (!chunk) { return; } var lines; var sourceLines; var columns; var sourceColumns; var i; if (fileInfo && fileInfo.filename) { 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]); } // ignore empty content if (inputSource === undefined) { return; } 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 && fileInfo.filename) { 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 = void 0; var sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON()); if (this.sourceMapURL) { sourceMapURL = this.sourceMapURL; } else if (this._sourceMapFilename) { sourceMapURL = this._sourceMapFilename; } this.sourceMapURL = sourceMapURL; this.sourceMap = sourceMapContent; } return this._css.join(''); }; return SourceMapOutput; }()); return SourceMapOutput; }); var sourceMapBuilder = (function (SourceMapOutput, environment) { var SourceMapBuilder = /** @class */ (function () { function SourceMapBuilder(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); } if (this.options.sourceMapBasepath !== undefined && this.sourceMapURL !== undefined) { this.sourceMapURL = sourceMapOutput.removeBasepath(this.sourceMapURL); } return css + this.getCSSAppendage(); }; SourceMapBuilder.prototype.getCSSAppendage = function () { var sourceMapURL = this.sourceMapURL; if (this.options.sourceMapFileInline) { if (this.sourceMap === undefined) { return ''; } sourceMapURL = "data:application/json;base64," + environment.encodeBase64(this.sourceMap); } if (sourceMapURL) { return "/*# sourceMappingURL=" + sourceMapURL + " */"; } return ''; }; 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; }()); return SourceMapBuilder; }); var transformTree = (function (root, options) { if (options === void 0) { options = {}; } var evaldRoot; var variables = options.variables; var evalEnv = new contexts.Eval(options); // // Allows setting variables with a hash, so: // // `{ color: new tree.Color('#f01') }` will become: // // new tree.Declaration('@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.Declaration("@" + k, value, false, null, 0); }); evalEnv.frames = [new tree.Ruleset(null, variables)]; } var visitors$1 = [ new visitors.JoinSelectorVisitor(), new visitors.MarkVisibleSelectorsVisitor(true), new visitors.ExtendVisitor(), new visitors.ToCSSVisitor({ compress: Boolean(options.compress) }) ]; var preEvalVisitors = []; var v; var visitorIterator; /** * first() / get() allows visitors to be added while visiting * * @todo Add scoping for visitors just like functions for @plugin; right now they're global */ if (options.pluginManager) { visitorIterator = options.pluginManager.visitor(); for (var i = 0; i < 2; i++) { visitorIterator.first(); while ((v = visitorIterator.get())) { if (v.isPreEvalVisitor) { if (i === 0 || preEvalVisitors.indexOf(v) === -1) { preEvalVisitors.push(v); v.run(root); } } else { if (i === 0 || visitors$1.indexOf(v) === -1) { if (v.isPreVisitor) { visitors$1.unshift(v); } else { visitors$1.push(v); } } } } } } evaldRoot = root.eval(evalEnv); for (var i = 0; i < visitors$1.length; i++) { visitors$1[i].run(evaldRoot); } // Run any remaining visitors added after eval pass if (options.pluginManager) { visitorIterator.first(); while ((v = visitorIterator.get())) { if (visitors$1.indexOf(v) === -1 && preEvalVisitors.indexOf(v) === -1) { v.run(evaldRoot); } } } return evaldRoot; }); var parseTree = (function (SourceMapBuilder) { var ParseTree = /** @class */ (function () { function ParseTree(root, imports) { this.root = root; this.imports = imports; } ParseTree.prototype.toCSS = function (options) { var evaldRoot; var result = {}; var sourceMapBuilder; try { evaldRoot = transformTree(this.root, options); } catch (e) { throw new LessError(e, this.imports); } try { var compress = Boolean(options.compress); if (compress) { logger.warn('The compress option has been deprecated. ' + 'We recommend you use a dedicated css minifier, for instance see less-plugin-clean-css.'); } var toCSSOptions = { compress: 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_1 = 0; i_1 < postProcessors.length; i_1++) { result.css = postProcessors[i_1].process(result.css, { sourceMap: sourceMapBuilder, options: options, imports: this.imports }); } } if (options.sourceMap) { result.map = sourceMapBuilder.getExternalSourceMap(); } var rootFilename = this.imports.rootFilename; result.imports = this.imports.files.filter(function (file) { return file !== rootFilename; }); return result; }; return ParseTree; }()); return ParseTree; }); var importManager = (function (environment) { // FileInfo = { // 'rewriteUrls' - 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 = /** @class */ (function () { function ImportManager(less, context, rootFileInfo) { this.less = less; 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 beginning 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 = []; // List of files imported } /** * Add an import to be imported * @param path - the raw path * @param tryAppendExtension - whether to try appending a file extension (.less or .js if the path has no extension) * @param currentFileInfo - the current file info (used for instance to work out relative paths) * @param importOptions - import options * @param callback - callback for when it is imported */ ImportManager.prototype.push = function (path, tryAppendExtension, currentFileInfo, importOptions, callback) { var importManager = this; var pluginLoader = this.context.pluginManager.Loader; 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; if (importOptions.optional && e) { callback(null, { rules: [] }, false, null); logger.info("The file " + fullPath + " was skipped because it was not found and the import was marked optional."); } else { var files = importManager.files; if (files.indexOf(fullPath) === -1) { files.push(fullPath); } if (e && !importManager.error) { importManager.error = e; } callback(e, root, importedEqualsRoot, fullPath); } }; var newFileInfo = { rewriteUrls: this.context.rewriteUrls, 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; } var loadFileCallback = function (loadedFile) { var plugin; var resolvedFilename = loadedFile.filename; var contents = loadedFile.contents.replace(/^\uFEFF/, ''); // 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.rewriteUrls) { 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.isPlugin) { plugin = pluginLoader.evalPlugin(contents, newEnv, importManager, importOptions.pluginArgs, newFileInfo); if (plugin instanceof LessError) { fileParsedFunc(plugin, null, resolvedFilename); } else { fileParsedFunc(null, plugin, resolvedFilename); } } else if (importOptions.inline) { fileParsedFunc(null, contents, resolvedFilename); } else { new Parser(newEnv, importManager, newFileInfo).parse(contents, function (e, root) { fileParsedFunc(e, root, resolvedFilename); }); } }; var promise; var context = clone(this.context); if (tryAppendExtension) { context.ext = importOptions.isPlugin ? '.js' : '.less'; } if (importOptions.isPlugin) { context.mime = 'application/javascript'; promise = pluginLoader.loadPlugin(path, currentFileInfo.currentDirectory, context, environment, fileManager); } else { promise = fileManager.loadFile(path, currentFileInfo.currentDirectory, context, environment, function (err, loadedFile) { if (err) { fileParsedFunc(err); } else { loadFileCallback(loadedFile); } }); } if (promise) { promise.then(loadFileCallback, fileParsedFunc); } }; return ImportManager; }()); return ImportManager; }); var Render = (function (environment, ParseTree, ImportManager) { var render = function (input, options, callback) { if (typeof options === 'function') { callback = options; options = copyOptions(this.options, {}); } else { options = copyOptions(this.options, options || {}); } if (!callback) { var self_1 = this; return new Promise(function (resolve, reject) { render.call(self_1, input, options, function (err, output) { if (err) { reject(err); } else { resolve(output); } }); }); } else { this.parse(input, options, function (err, root, imports, options) { if (err) { return callback(err); } var result; try { var parseTree = new ParseTree(root, imports); result = parseTree.toCSS(options); } catch (err) { return callback(err); } callback(null, result); }); } }; return render; }); /** * Plugin Manager */ var PluginManager = /** @class */ (function () { function PluginManager(less) { this.less = less; this.visitors = []; this.preProcessors = []; this.postProcessors = []; this.installedPlugins = []; this.fileManagers = []; this.iterator = -1; this.pluginCache = {}; this.Loader = new less.PluginLoader(less); } /** * Adds all the plugins in the array * @param {Array} plugins */ PluginManager.prototype.addPlugins = function (plugins) { if (plugins) { for (var i_1 = 0; i_1 < plugins.length; i_1++) { this.addPlugin(plugins[i_1]); } } }; /** * * @param plugin * @param {String} filename */ PluginManager.prototype.addPlugin = function (plugin, filename, functionRegistry) { this.installedPlugins.push(plugin); if (filename) { this.pluginCache[filename] = plugin; } if (plugin.install) { plugin.install(this.less, this, functionRegistry || this.less.functions.functionRegistry); } }; /** * * @param filename */ PluginManager.prototype.get = function (filename) { return this.pluginCache[filename]; }; /** * 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 pre processor object * @param {object} preProcessor * @param {number} priority - guidelines 1 = before import, 1000 = import, 2000 = after import */ PluginManager.prototype.addPreProcessor = function (preProcessor, priority) { var indexToInsertAt; for (indexToInsertAt = 0; indexToInsertAt < this.preProcessors.length; indexToInsertAt++) { if (this.preProcessors[indexToInsertAt].priority >= priority) { break; } } this.preProcessors.splice(indexToInsertAt, 0, { preProcessor: preProcessor, priority: priority }); }; /** * 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.getPreProcessors = function () { var preProcessors = []; for (var i_2 = 0; i_2 < this.preProcessors.length; i_2++) { preProcessors.push(this.preProcessors[i_2].preProcessor); } return preProcessors; }; /** * * @returns {Array} * @private */ PluginManager.prototype.getPostProcessors = function () { var postProcessors = []; for (var i_3 = 0; i_3 < this.postProcessors.length; i_3++) { postProcessors.push(this.postProcessors[i_3].postProcessor); } return postProcessors; }; /** * * @returns {Array} * @private */ PluginManager.prototype.getVisitors = function () { return this.visitors; }; PluginManager.prototype.visitor = function () { var self = this; return { first: function () { self.iterator = -1; return self.visitors[self.iterator]; }, get: function () { self.iterator += 1; return self.visitors[self.iterator]; } }; }; /** * * @returns {Array} * @private */ PluginManager.prototype.getFileManagers = function () { return this.fileManagers; }; return PluginManager; }()); var pm; function PluginManagerFactory(less, newFactory) { if (newFactory || !pm) { pm = new PluginManager(less); } return pm; } var Parse = (function (environment, ParseTree, ImportManager) { var parse = function (input, options, callback) { if (typeof options === 'function') { callback = options; options = copyOptions(this.options, {}); } else { options = copyOptions(this.options, options || {}); } if (!callback) { var self_1 = this; return new Promise(function (resolve, reject) { parse.call(self_1, input, options, function (err, output) { if (err) { reject(err); } else { resolve(output); } }); }); } else { var context_1; var rootFileInfo = void 0; var pluginManager_1 = new PluginManagerFactory(this, !options.reUsePluginManager); options.pluginManager = pluginManager_1; context_1 = new contexts.Parse(options); if (options.rootFileInfo) { rootFileInfo = options.rootFileInfo; } else { var filename = options.filename || 'input'; var entryPath = filename.replace(/[^\/\\]*$/, ''); rootFileInfo = { filename: filename, rewriteUrls: context_1.rewriteUrls, rootpath: context_1.rootpath || '', currentDirectory: entryPath, entryPath: entryPath, rootFilename: filename }; // add in a missing trailing slash if (rootFileInfo.rootpath && rootFileInfo.rootpath.slice(-1) !== '/') { rootFileInfo.rootpath += '/'; } } var imports_1 = new ImportManager(this, context_1, rootFileInfo); this.importManager = imports_1; // TODO: allow the plugins to be just a list of paths or names // Do an async plugin queue like lessc if (options.plugins) { options.plugins.forEach(function (plugin) { var evalResult; var contents; if (plugin.fileContent) { contents = plugin.fileContent.replace(/^\uFEFF/, ''); evalResult = pluginManager_1.Loader.evalPlugin(contents, context_1, imports_1, plugin.options, plugin.filename); if (evalResult instanceof LessError) { return callback(evalResult); } } else { pluginManager_1.addPlugin(plugin); } }); } new Parser(context_1, imports_1, rootFileInfo) .parse(input, function (e, root) { if (e) { return callback(e); } callback(null, root, imports_1, options); }, options); } }; return parse; }); var createFromEnvironment = (function (environment, fileManagers) { /** * @todo * This original code could be improved quite a bit. * Many classes / modules currently add side-effects / mutations to passed in objects, * which makes it hard to refactor and reason about. */ environment = new environment$1(environment, fileManagers); var SourceMapOutput = sourceMapOutput(environment); var SourceMapBuilder = sourceMapBuilder(SourceMapOutput, environment); var ParseTree = parseTree(SourceMapBuilder); var ImportManager = importManager(environment); var render = Render(environment, ParseTree); var parse = Parse(environment, ParseTree, ImportManager); var functions = Functions(environment); /** * @todo * This root properties / methods need to be organized. * It's not clear what should / must be public and why. */ var initial = { version: [3, 11, 3], data: data, tree: tree, Environment: environment$1, AbstractFileManager: AbstractFileManager, AbstractPluginLoader: AbstractPluginLoader, environment: environment, visitors: visitors, Parser: Parser, functions: functions, contexts: contexts, SourceMapOutput: SourceMapOutput, SourceMapBuilder: SourceMapBuilder, ParseTree: ParseTree, ImportManager: ImportManager, render: render, parse: parse, LessError: LessError, transformTree: transformTree, utils: utils, PluginManager: PluginManagerFactory, logger: logger }; // Create a public API var ctor = function (t) { return function () { var args = []; for (var _i = 0; _i < arguments.length; _i++) { args[_i] = arguments[_i]; } return new (t.bind.apply(t, tslib.__spreadArrays([void 0], args)))(); }; }; var t; var api = Object.create(initial); for (var n in initial.tree) { /* eslint guard-for-in: 0 */ t = initial.tree[n]; if (typeof t === 'function') { api[n.toLowerCase()] = ctor(t); } else { api[n] = Object.create(null); for (var o in t) { /* eslint guard-for-in: 0 */ api[n][o.toLowerCase()] = ctor(t[o]); } } } return api; }); function createCommonjsModule(fn, module) { return module = { exports: {} }, fn(module, module.exports), module.exports; } var lesscHelper = createCommonjsModule(function (module, exports) { // lessc_helper.js // // helper functions for lessc var lessc_helper = { // Stylize a string stylize: function (str, style) { var styles = { 'reset': [0, 0], 'bold': [1, 22], 'inverse': [7, 27], 'underline': [4, 24], 'yellow': [33, 39], 'green': [32, 39], 'red': [31, 39], 'grey': [90, 39] }; return "\u001B[" + styles[style][0] + "m" + str + "\u001B[" + styles[style][1] + "m"; }, // Print command line options printUsage: function () { console.log('usage: lessc [option option=parameter ...] [destination]'); console.log(''); console.log('If source is set to `-\' (dash or hyphen-minus), input is read from stdin.'); console.log(''); console.log('options:'); console.log(' -h, --help Prints help (this message) and exit.'); console.log(' --include-path=PATHS Sets include paths. Separated by `:\'. `;\' also supported on windows.'); console.log(' -M, --depends Outputs a makefile import dependency list to stdout.'); console.log(' --no-color Disables colorized output.'); console.log(' --ie-compat Enables IE8 compatibility checks.'); console.log(' --js Enables inline JavaScript in less files'); console.log(' -l, --lint Syntax check only (lint).'); console.log(' -s, --silent Suppresses output of error messages.'); console.log(' --strict-imports Forces evaluation of imports.'); console.log(' --insecure Allows imports from insecure https hosts.'); console.log(' -v, --version Prints version number and exit.'); console.log(' --verbose Be verbose.'); console.log(' --source-map[=FILENAME] Outputs a v3 sourcemap to the filename (or output filename.map).'); console.log(' --source-map-rootpath=X Adds this path onto the sourcemap filename and less file paths.'); console.log(' --source-map-basepath=X Sets sourcemap base path, defaults to current working directory.'); console.log(' --source-map-include-source Puts the less files into the map instead of referencing them.'); console.log(' --source-map-inline Puts the map (and any less files) as a base64 data uri into the output css file.'); console.log(' --source-map-url=URL Sets a custom URL to map file, for sourceMappingURL comment'); console.log(' in generated CSS file.'); console.log(' -rp, --rootpath=URL Sets rootpath for url rewriting in relative imports and urls'); console.log(' Works with or without the relative-urls option.'); console.log(' -ru=, --rewrite-urls= Rewrites URLs to make them relative to the base less file.'); console.log(' all|local|off \'all\' rewrites all URLs, \'local\' just those starting with a \'.\''); console.log(''); console.log(' -m=, --math='); console.log(' always Less will eagerly perform math operations always.'); console.log(' parens-division Math performed except for division (/) operator'); console.log(' parens | strict Math only performed inside parentheses'); console.log(' strict-legacy Parens required in very strict terms (legacy --strict-math)'); console.log(''); console.log(' -su=on|off Allows mixed units, e.g. 1px+1em or 1px*1px which have units'); console.log(' --strict-units=on|off that cannot be represented.'); console.log(' --global-var=\'VAR=VALUE\' Defines a variable that can be referenced by the file.'); console.log(' --modify-var=\'VAR=VALUE\' Modifies a variable already declared in the file.'); console.log(' --url-args=\'QUERYSTRING\' Adds params into url tokens (e.g. 42, cb=42 or \'a=1&b=2\')'); console.log(' --plugin=PLUGIN=OPTIONS Loads a plugin. You can also omit the --plugin= if the plugin begins'); console.log(' less-plugin. E.g. the clean css plugin is called less-plugin-clean-css'); console.log(' once installed (npm install less-plugin-clean-css), use either with'); console.log(' --plugin=less-plugin-clean-css or just --clean-css'); console.log(' specify options afterwards e.g. --plugin=less-plugin-clean-css="advanced"'); console.log(' or --clean-css="advanced"'); console.log(''); console.log('-------------------------- Deprecated ----------------'); console.log(' -sm=on|off Legacy parens-only math. Use --math'); console.log(' --strict-math=on|off '); console.log(''); console.log(' --line-numbers=TYPE Outputs filename and line numbers.'); console.log(' TYPE can be either \'comments\', which will output'); console.log(' the debug info within comments, \'mediaquery\''); console.log(' that will output the information within a fake'); console.log(' media query which is compatible with the SASS'); console.log(' format, and \'all\' which will do both.'); console.log(' -x, --compress Compresses output by removing some whitespaces.'); console.log(' We recommend you use a dedicated minifer like less-plugin-clean-css'); console.log(''); console.log('Report bugs to: http://github.com/less/less.js/issues'); console.log('Home page: '); } }; // Exports helper functions for (var h in lessc_helper) { if (lessc_helper.hasOwnProperty(h)) { exports[h] = lessc_helper[h]; } } }); /** * Node Plugin Loader */ var PluginLoader = /** @class */ (function (_super) { tslib.__extends(PluginLoader, _super); function PluginLoader(less) { var _this = _super.call(this) || this; _this.less = less; _this.require = function (prefix) { prefix = path.dirname(prefix); return function (id) { var str = id.substr(0, 2); if (str === '..' || str === './') { return require(path.join(prefix, id)); } else { return require(id); } }; }; return _this; } PluginLoader.prototype.loadPlugin = function (filename, basePath, context, environment, fileManager) { var prefix = filename.slice(0, 1); var explicit = prefix === '.' || prefix === '/' || filename.slice(-3).toLowerCase() === '.js'; if (!explicit) { context.prefixes = ['less-plugin-', '']; } return new Promise(function (fulfill, reject) { fileManager.loadFile(filename, basePath, context, environment).then(function (data) { try { fulfill(data); } catch (e) { console.log(e); reject(e); } }).catch(function (err) { reject(err); }); }); }; return PluginLoader; }(AbstractPluginLoader)); // Export a new default each time var defaultOptions = (function () { return ({ /* Inline Javascript - @plugin still allowed */ javascriptEnabled: false, /* Outputs a makefile import dependency list to stdout. */ depends: false, /* (DEPRECATED) Compress using less built-in compression. * This does an okay job but does not utilise all the tricks of * dedicated css compression. */ compress: false, /* Runs the less parser and just reports errors without any output. */ lint: false, /* Sets available include paths. * If the file in an @import rule does not exist at that exact location, * less will look for it at the location(s) passed to this option. * You might use this for instance to specify a path to a library which * you want to be referenced simply and relatively in the less files. */ paths: [], /* color output in the terminal */ color: true, /* The strictImports controls whether the compiler will allow an @import inside of either * @media blocks or (a later addition) other selector blocks. * See: https://github.com/less/less.js/issues/656 */ strictImports: false, /* Allow Imports from Insecure HTTPS Hosts */ insecure: false, /* Allows you to add a path to every generated import and url in your css. * This does not affect less import statements that are processed, just ones * that are left in the output css. */ rootpath: '', /* By default URLs are kept as-is, so if you import a file in a sub-directory * that references an image, exactly the same URL will be output in the css. * This option allows you to re-write URL's in imported files so that the * URL is always relative to the base imported file */ rewriteUrls: false, /* How to process math * 0 always - eagerly try to solve all operations * 1 parens-division - require parens for division "/" * 2 parens | strict - require parens for all operations * 3 strict-legacy - legacy strict behavior (super-strict) */ math: 0, /* Without this option, less attempts to guess at the output unit when it does maths. */ strictUnits: false, /* Effectively the declaration is put at the top of your base Less file, * meaning it can be used but it also can be overridden if this variable * is defined in the file. */ globalVars: null, /* As opposed to the global variable option, this puts the declaration at the * end of your base file, meaning it will override anything defined in your Less file. */ modifyVars: null, /* This option allows you to specify a argument to go on to every URL. */ urlArgs: '' }); }); var imageSize = (function (environment) { function imageSize(functionContext, filePathNode) { var filePath = filePathNode.value; var currentFileInfo = functionContext.currentFileInfo; var currentDirectory = currentFileInfo.rewriteUrls ? currentFileInfo.currentDirectory : currentFileInfo.entryPath; var fragmentStart = filePath.indexOf('#'); var fragment = ''; if (fragmentStart !== -1) { fragment = filePath.slice(fragmentStart); filePath = filePath.slice(0, fragmentStart); } var fileManager = environment.getFileManager(filePath, currentDirectory, functionContext.context, environment, true); if (!fileManager) { throw { type: 'File', message: "Can not set up FileManager for " + filePathNode }; } var fileSync = fileManager.loadFileSync(filePath, currentDirectory, functionContext.context, environment); if (fileSync.error) { throw fileSync.error; } var sizeOf = require('image-size'); return sizeOf(fileSync.filename); } var imageFunctions = { 'image-size': function (filePathNode) { var size = imageSize(this, filePathNode); return new Expression([ new Dimension(size.width, 'px'), new Dimension(size.height, 'px') ]); }, 'image-width': function (filePathNode) { var size = imageSize(this, filePathNode); return new Dimension(size.width, 'px'); }, 'image-height': function (filePathNode) { var size = imageSize(this, filePathNode); return new Dimension(size.height, 'px'); } }; functionRegistry.addMultiple(imageFunctions); }); var less = createFromEnvironment(environment, [new FileManager(), new UrlFileManager()]); // allow people to create less with their own environment less.createFromEnvironment = createFromEnvironment; less.lesscHelper = lesscHelper; less.PluginLoader = PluginLoader; less.fs = fs$1; less.FileManager = FileManager; less.UrlFileManager = UrlFileManager; // Set up options less.options = defaultOptions(); // provide image-size functionality imageSize(less.environment); var errno; var mkdirp; try { errno = require('errno'); } catch (err) { errno = null; } var pluginManager = new less.PluginManager(less); var fileManager = new less.FileManager(); var plugins = []; var queuePlugins = []; var args = process.argv.slice(1); var silent = false; var verbose = false; var options = less.options; options.plugins = plugins; options.reUsePluginManager = true; var sourceMapOptions = {}; var continueProcessing = true; var checkArgFunc = function (arg, option) { if (!option) { console.error(arg + " option requires a parameter"); continueProcessing = false; process.exitCode = 1; return false; } return true; }; var checkBooleanArg = function (arg) { var onOff = /^((on|t|true|y|yes)|(off|f|false|n|no))$/i.exec(arg); if (!onOff) { console.error(" unable to parse " + arg + " as a boolean. use one of on/t/true/y/yes/off/f/false/n/no"); continueProcessing = false; process.exitCode = 1; return false; } return Boolean(onOff[2]); }; var parseVariableOption = function (option, variables) { var parts = option.split('=', 2); variables[parts[0]] = parts[1]; }; var sourceMapFileInline = false; function printUsage() { less.lesscHelper.printUsage(); pluginManager.Loader.printUsage(plugins); continueProcessing = false; } function render() { if (!continueProcessing) { return; } var input = args[1]; if (input && input != '-') { input = path.resolve(process.cwd(), input); } var output = args[2]; var outputbase = args[2]; if (output) { output = path.resolve(process.cwd(), output); } if (options.sourceMap) { sourceMapOptions.sourceMapInputFilename = input; if (!sourceMapOptions.sourceMapFullFilename) { if (!output && !sourceMapFileInline) { console.error('the sourcemap option only has an optional filename if the css filename is given'); console.error('consider adding --source-map-map-inline which embeds the sourcemap into the css'); process.exitCode = 1; return; } // its in the same directory, so always just the basename if (output) { sourceMapOptions.sourceMapOutputFilename = path.basename(output); sourceMapOptions.sourceMapFullFilename = output + ".map"; } // its in the same directory, so always just the basename if ('sourceMapFullFilename' in sourceMapOptions) { sourceMapOptions.sourceMapFilename = path.basename(sourceMapOptions.sourceMapFullFilename); } } else if (options.sourceMap && !sourceMapFileInline) { var mapFilename = path.resolve(process.cwd(), sourceMapOptions.sourceMapFullFilename); var mapDir = path.dirname(mapFilename); var outputDir = path.dirname(output); // find the path from the map to the output file sourceMapOptions.sourceMapOutputFilename = path.join(path.relative(mapDir, outputDir), path.basename(output)); // make the sourcemap filename point to the sourcemap relative to the css file output directory sourceMapOptions.sourceMapFilename = path.join(path.relative(outputDir, mapDir), path.basename(sourceMapOptions.sourceMapFullFilename)); } } if (sourceMapOptions.sourceMapBasepath === undefined) { sourceMapOptions.sourceMapBasepath = input ? path.dirname(input) : process.cwd(); } if (sourceMapOptions.sourceMapRootpath === undefined) { var pathToMap = path.dirname((sourceMapFileInline ? output : sourceMapOptions.sourceMapFullFilename) || '.'); var pathToInput = path.dirname(sourceMapOptions.sourceMapInputFilename || '.'); sourceMapOptions.sourceMapRootpath = path.relative(pathToMap, pathToInput); } if (!input) { console.error('lessc: no input files'); console.error(''); printUsage(); process.exitCode = 1; return; } var ensureDirectory = function (filepath) { var dir = path.dirname(filepath); var cmd; var existsSync = fs$1.existsSync || path.existsSync; if (!existsSync(dir)) { if (mkdirp === undefined) { try { mkdirp = require('make-dir'); } catch (e) { mkdirp = null; } } cmd = mkdirp && mkdirp.sync || fs$1.mkdirSync; cmd(dir); } }; if (options.depends) { if (!outputbase) { console.error('option --depends requires an output path to be specified'); process.exitCode = 1; return; } process.stdout.write(outputbase + ": "); } if (!sourceMapFileInline) { var writeSourceMap = function (output, onDone) { if (output === void 0) { output = ''; } var filename = sourceMapOptions.sourceMapFullFilename; ensureDirectory(filename); fs$1.writeFile(filename, output, 'utf8', function (err) { if (err) { var description = 'Error: '; if (errno && errno.errno[err.errno]) { description += errno.errno[err.errno].description; } else { description += err.code + " " + err.message; } console.error("lessc: failed to create file " + filename); console.error(description); process.exitCode = 1; } else { less.logger.info("lessc: wrote " + filename); } onDone(); }); }; } var writeSourceMapIfNeeded = function (output, onDone) { if (options.sourceMap && !sourceMapFileInline) { writeSourceMap(output, onDone); } else { onDone(); } }; var writeOutput = function (output, result, onSuccess) { if (options.depends) { onSuccess(); } else if (output) { ensureDirectory(output); fs$1.writeFile(output, result.css, { encoding: 'utf8' }, function (err) { if (err) { var description = 'Error: '; if (errno && errno.errno[err.errno]) { description += errno.errno[err.errno].description; } else { description += err.code + " " + err.message; } console.error("lessc: failed to create file " + output); console.error(description); process.exitCode = 1; } else { less.logger.info("lessc: wrote " + output); onSuccess(); } }); } else if (!options.depends) { process.stdout.write(result.css); onSuccess(); } }; var logDependencies = function (options, result) { if (options.depends) { var depends = ''; for (var i_1 = 0; i_1 < result.imports.length; i_1++) { depends += result.imports[i_1] + " "; } console.log(depends); } }; var parseLessFile = function (e, data) { if (e) { console.error("lessc: " + e.message); process.exitCode = 1; return; } data = data.replace(/^\uFEFF/, ''); options.paths = [path.dirname(input)].concat(options.paths); options.filename = input; if (options.lint) { options.sourceMap = false; } sourceMapOptions.sourceMapFileInline = sourceMapFileInline; if (options.sourceMap) { options.sourceMap = sourceMapOptions; } less.logger.addListener({ info: function (msg) { if (verbose) { console.log(msg); } }, warn: function (msg) { // do not show warning if the silent option is used if (!silent) { console.warn(msg); } }, error: function (msg) { console.error(msg); } }); less.render(data, options) .then(function (result) { if (!options.lint) { writeOutput(output, result, function () { writeSourceMapIfNeeded(result.map, function () { logDependencies(options, result); }); }); } }, function (err) { if (!options.silent) { console.error(err.toString({ stylize: options.color && less.lesscHelper.stylize })); } process.exitCode = 1; }); }; if (input != '-') { fs$1.readFile(input, 'utf8', parseLessFile); } else { process.stdin.resume(); process.stdin.setEncoding('utf8'); var buffer_1 = ''; process.stdin.on('data', function (data) { buffer_1 += data; }); process.stdin.on('end', function () { parseLessFile(false, buffer_1); }); } } function processPluginQueue() { var x = 0; function pluginError(name) { console.error("Unable to load plugin " + name + " please make sure that it is installed under or at the same level as less"); process.exitCode = 1; } function pluginFinished(plugin) { x++; plugins.push(plugin); if (x === queuePlugins.length) { render(); } } queuePlugins.forEach(function (queue) { var context = clone(options); pluginManager.Loader.loadPlugin(queue.name, process.cwd(), context, less.environment, fileManager) .then(function (data) { pluginFinished({ fileContent: data.contents, filename: data.filename, options: queue.options }); }) .catch(function () { pluginError(queue.name); }); }); } // self executing function so we can return (function () { args = args.filter(function (arg) { var match; match = arg.match(/^-I(.+)$/); if (match) { options.paths.push(match[1]); return false; } match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=(.*))?$/i); if (match) { arg = match[1]; } else { return arg; } switch (arg) { case 'v': case 'version': console.log("lessc " + less.version.join('.') + " (Less Compiler) [JavaScript]"); continueProcessing = false; break; case 'verbose': verbose = true; break; case 's': case 'silent': silent = true; break; case 'l': case 'lint': options.lint = true; break; case 'strict-imports': options.strictImports = true; break; case 'h': case 'help': printUsage(); break; case 'x': case 'compress': options.compress = true; break; case 'insecure': options.insecure = true; break; case 'M': case 'depends': options.depends = true; break; case 'max-line-len': if (checkArgFunc(arg, match[2])) { options.maxLineLen = parseInt(match[2], 10); if (options.maxLineLen <= 0) { options.maxLineLen = -1; } } break; case 'no-color': options.color = false; break; case 'js': options.javascriptEnabled = true; break; case 'no-js': console.error('The "--no-js" argument is deprecated, as inline JavaScript ' + 'is disabled by default. Use "--js" to enable inline JavaScript (not recommended).'); break; case 'include-path': if (checkArgFunc(arg, match[2])) { // ; supported on windows. // : supported on windows and linux, excluding a drive letter like C:\ so C:\file:D:\file parses to 2 options.paths = match[2] .split(os.type().match(/Windows/) ? /:(?!\\)|;/ : ':') .map(function (p) { if (p) { return path.resolve(process.cwd(), p); } }); } break; case 'line-numbers': if (checkArgFunc(arg, match[2])) { options.dumpLineNumbers = match[2]; } break; case 'source-map': options.sourceMap = true; if (match[2]) { sourceMapOptions.sourceMapFullFilename = match[2]; } break; case 'source-map-rootpath': if (checkArgFunc(arg, match[2])) { sourceMapOptions.sourceMapRootpath = match[2]; } break; case 'source-map-basepath': if (checkArgFunc(arg, match[2])) { sourceMapOptions.sourceMapBasepath = match[2]; } break; case 'source-map-inline': case 'source-map-map-inline': sourceMapFileInline = true; options.sourceMap = true; break; case 'source-map-include-source': case 'source-map-less-inline': sourceMapOptions.outputSourceFiles = true; break; case 'source-map-url': if (checkArgFunc(arg, match[2])) { sourceMapOptions.sourceMapURL = match[2]; } break; case 'rp': case 'rootpath': if (checkArgFunc(arg, match[2])) { options.rootpath = match[2].replace(/\\/g, '/'); } break; case 'relative-urls': console.warn('The --relative-urls option has been deprecated. Use --rewrite-urls=all.'); options.rewriteUrls = RewriteUrls.ALL; break; case 'ru': case 'rewrite-urls': var m = match[2]; if (m) { if (m === 'local') { options.rewriteUrls = RewriteUrls.LOCAL; } else if (m === 'off') { options.rewriteUrls = RewriteUrls.OFF; } else if (m === 'all') { options.rewriteUrls = RewriteUrls.ALL; } else { console.error("Unknown rewrite-urls argument " + m); continueProcessing = false; process.exitCode = 1; } } else { options.rewriteUrls = RewriteUrls.ALL; } break; case 'sm': case 'strict-math': console.warn('The --strict-math option has been deprecated. Use --math=strict.'); if (checkArgFunc(arg, match[2])) { if (checkBooleanArg(match[2])) { options.math = Math$1.STRICT_LEGACY; } } break; case 'm': case 'math': if (checkArgFunc(arg, match[2])) { options.math = match[2]; } break; case 'su': case 'strict-units': if (checkArgFunc(arg, match[2])) { options.strictUnits = checkBooleanArg(match[2]); } break; case 'global-var': if (checkArgFunc(arg, match[2])) { if (!options.globalVars) { options.globalVars = {}; } parseVariableOption(match[2], options.globalVars); } break; case 'modify-var': if (checkArgFunc(arg, match[2])) { if (!options.modifyVars) { options.modifyVars = {}; } parseVariableOption(match[2], options.modifyVars); } break; case 'url-args': if (checkArgFunc(arg, match[2])) { options.urlArgs = match[2]; } break; case 'plugin': var splitupArg = match[2].match(/^([^=]+)(=(.*))?/); var name_1 = splitupArg[1]; var pluginOptions = splitupArg[3]; queuePlugins.push({ name: name_1, options: pluginOptions }); break; default: queuePlugins.push({ name: arg, options: match[2], default: true }); break; } }); if (queuePlugins.length > 0) { processPluginQueue(); } else { render(); } })();