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- 'use strict';
- var tslib = require('tslib');
- var path = require('path');
- var url = require('url');
- var CloneHelper = require('clone');
- 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 fs;
- try {
- fs = require('graceful-fs');
- }
- catch (e) {
- fs = require('fs');
- }
- var fs$1 = fs;
- var AbstractFileManager = /** @class */ (function () {
- function AbstractFileManager() {
- }
- AbstractFileManager.prototype.getPath = function (filename) {
- var j = filename.lastIndexOf('?');
- if (j > 0) {
- filename = filename.slice(0, j);
- }
- j = filename.lastIndexOf('/');
- if (j < 0) {
- j = filename.lastIndexOf('\\');
- }
- if (j < 0) {
- return '';
- }
- return filename.slice(0, j + 1);
- };
- AbstractFileManager.prototype.tryAppendExtension = function (path, ext) {
- return /(\.[a-z]*$)|([\?;].*)$/.test(path) ? path : path + ext;
- };
- AbstractFileManager.prototype.tryAppendLessExtension = function (path) {
- return this.tryAppendExtension(path, '.less');
- };
- AbstractFileManager.prototype.supportsSync = function () { return false; };
- AbstractFileManager.prototype.alwaysMakePathsAbsolute = function () { return false; };
- AbstractFileManager.prototype.isPathAbsolute = function (filename) {
- return (/^(?:[a-z-]+:|\/|\\|#)/i).test(filename);
- };
- // TODO: pull out / replace?
- AbstractFileManager.prototype.join = function (basePath, laterPath) {
- if (!basePath) {
- return laterPath;
- }
- return basePath + laterPath;
- };
- AbstractFileManager.prototype.pathDiff = function (url, baseUrl) {
- // diff between two paths to create a relative path
- var urlParts = this.extractUrlParts(url);
- var baseUrlParts = this.extractUrlParts(baseUrl);
- var i;
- var max;
- var urlDirectories;
- var baseUrlDirectories;
- var diff = '';
- if (urlParts.hostPart !== baseUrlParts.hostPart) {
- return '';
- }
- max = Math.max(baseUrlParts.directories.length, urlParts.directories.length);
- for (i = 0; i < max; i++) {
- if (baseUrlParts.directories[i] !== urlParts.directories[i]) {
- break;
- }
- }
- baseUrlDirectories = baseUrlParts.directories.slice(i);
- urlDirectories = urlParts.directories.slice(i);
- for (i = 0; i < baseUrlDirectories.length - 1; i++) {
- diff += '../';
- }
- for (i = 0; i < urlDirectories.length - 1; i++) {
- diff += urlDirectories[i] + "/";
- }
- return diff;
- };
- // helper function, not part of API
- AbstractFileManager.prototype.extractUrlParts = function (url, baseUrl) {
- // urlParts[1] = protocol://hostname/ OR /
- // urlParts[2] = / if path relative to host base
- // urlParts[3] = directories
- // urlParts[4] = filename
- // urlParts[5] = parameters
- var urlPartsRegex = /^((?:[a-z-]+:)?\/{2}(?:[^\/\?#]*\/)|([\/\\]))?((?:[^\/\\\?#]*[\/\\])*)([^\/\\\?#]*)([#\?].*)?$/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 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 anonymousFunc = /(<anonymous>|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 "/* line " + ctx.debugInfo.lineNumber + ", " + ctx.debugInfo.fileName + " */\n"; };
- debugInfo.asMediaQuery = function (ctx) {
- 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) {
- 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.$char('-');
- }
- var o = this.sub() || entities.dimension() ||
- entities.color() || entities.variable() ||
- entities.property() || entities.call() ||
- entities.quoted(true) || entities.colorKeyword() ||
- entities.mixinLookup();
- if (negate) {
- o.parensInOp = true;
- o = new (tree.Negative)(o);
- }
- return o;
- },
- //
- // Expressions either represent mathematical operations,
- // or white-space delimited Entities.
- //
- // 1px solid black
- // @var * 2
- //
- expression: function () {
- var entities = [];
- var e;
- var delim;
- var index = parserInput.i;
- do {
- e = this.comment();
- if (e) {
- entities.push(e);
- continue;
- }
- e = this.addition() || this.entity();
- if (e) {
- entities.push(e);
- // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here
- if (!parserInput.peek(/^\/[\/*]/)) {
- delim = parserInput.$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 = "<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 1 1\"><" + 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 += "<stop offset=\"" + positionValue + "\" stop-color=\"" + color.toRGB() + "\"" + (alpha < 1 ? " stop-opacity=\"" + alpha + "\"" : '') + "/>";
- }
- returner += "</" + gradientType + "Gradient><rect " + rectangleDimension + " fill=\"url(#g)\" /></svg>";
- 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();
- }
- result.imports = [];
- for (var file_1 in this.imports.files) {
- if (this.imports.files.hasOwnProperty(file_1) && file_1 !== this.imports.rootFilename) {
- result.imports.push(file_1);
- }
- }
- 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 = {}; // Holds the imported parse trees.
- }
- /**
- * 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 {
- // Inline imports aren't cached here.
- // If we start to cache them, please make sure they won't conflict with non-inline imports of the
- // same name as they used to do before this comment and the condition below have been added.
- if (!importManager.files[fullPath] && !importOptions.inline) {
- importManager.files[fullPath] = { root: root, options: importOptions };
- }
- 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 {
- // import (multiple) parse trees apparently get altered and can't be cached.
- // TODO: investigate why this is
- if (importManager.files[resolvedFilename]
- && !importManager.files[resolvedFilename].options.multiple
- && !importOptions.multiple) {
- fileParsedFunc(null, importManager.files[resolvedFilename].root, 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, 1],
- 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 ...] <source> [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: <http://lesscss.org/>');
- }
- };
- // 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);
- module.exports = less;
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