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less.cjs.js
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less.cjs.js
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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 = '';