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less.js
11539 lines (11430 loc) · 457 KB
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less.js
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/**
* Less - Leaner CSS v3.11.3
* http://lesscss.org
*
* Copyright (c) 2009-2020, Alexis Sellier <self@cloudhead.net>
* Licensed under the Apache-2.0 License.
*
* @license Apache-2.0
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = global || self, global.less = factory());
}(this, (function () { 'use strict';
// 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: ''
}); });
function extractId(href) {
return href.replace(/^[a-z-]+:\/+?[^\/]+/, '') // Remove protocol & domain
.replace(/[\?\&]livereload=\w+/, '') // Remove LiveReload cachebuster
.replace(/^\//, '') // Remove root /
.replace(/\.[a-zA-Z]+$/, '') // Remove simple extension
.replace(/[^\.\w-]+/g, '-') // Replace illegal characters
.replace(/\./g, ':'); // Replace dots with colons(for valid id)
}
function addDataAttr(options, tag) {
for (var opt in tag.dataset) {
if (tag.dataset.hasOwnProperty(opt)) {
if (opt === 'env' || opt === 'dumpLineNumbers' || opt === 'rootpath' || opt === 'errorReporting') {
options[opt] = tag.dataset[opt];
}
else {
try {
options[opt] = JSON.parse(tag.dataset[opt]);
}
catch (_) { }
}
}
}
}
var browser = {
createCSS: function (document, styles, sheet) {
// Strip the query-string
var href = sheet.href || '';
// If there is no title set, use the filename, minus the extension
var id = "less:" + (sheet.title || extractId(href));
// If this has already been inserted into the DOM, we may need to replace it
var oldStyleNode = document.getElementById(id);
var keepOldStyleNode = false;
// Create a new stylesheet node for insertion or (if necessary) replacement
var styleNode = document.createElement('style');
styleNode.setAttribute('type', 'text/css');
if (sheet.media) {
styleNode.setAttribute('media', sheet.media);
}
styleNode.id = id;
if (!styleNode.styleSheet) {
styleNode.appendChild(document.createTextNode(styles));
// If new contents match contents of oldStyleNode, don't replace oldStyleNode
keepOldStyleNode = (oldStyleNode !== null && oldStyleNode.childNodes.length > 0 && styleNode.childNodes.length > 0 &&
oldStyleNode.firstChild.nodeValue === styleNode.firstChild.nodeValue);
}
var head = document.getElementsByTagName('head')[0];
// If there is no oldStyleNode, just append; otherwise, only append if we need
// to replace oldStyleNode with an updated stylesheet
if (oldStyleNode === null || keepOldStyleNode === false) {
var nextEl = sheet && sheet.nextSibling || null;
if (nextEl) {
nextEl.parentNode.insertBefore(styleNode, nextEl);
}
else {
head.appendChild(styleNode);
}
}
if (oldStyleNode && keepOldStyleNode === false) {
oldStyleNode.parentNode.removeChild(oldStyleNode);
}
// For IE.
// This needs to happen *after* the style element is added to the DOM, otherwise IE 7 and 8 may crash.
// See http://social.msdn.microsoft.com/Forums/en-US/7e081b65-878a-4c22-8e68-c10d39c2ed32/internet-explorer-crashes-appending-style-element-to-head
if (styleNode.styleSheet) {
try {
styleNode.styleSheet.cssText = styles;
}
catch (e) {
throw new Error('Couldn\'t reassign styleSheet.cssText.');
}
}
},
currentScript: function (window) {
var document = window.document;
return document.currentScript || (function () {
var scripts = document.getElementsByTagName('script');
return scripts[scripts.length - 1];
})();
}
};
var addDefaultOptions = (function (window, options) {
// use options from the current script tag data attribues
addDataAttr(options, browser.currentScript(window));
if (options.isFileProtocol === undefined) {
options.isFileProtocol = /^(file|(chrome|safari)(-extension)?|resource|qrc|app):/.test(window.location.protocol);
}
// Load styles asynchronously (default: false)
//
// This is set to `false` by default, so that the body
// doesn't start loading before the stylesheets are parsed.
// Setting this to `true` can result in flickering.
//
options.async = options.async || false;
options.fileAsync = options.fileAsync || false;
// Interval between watch polls
options.poll = options.poll || (options.isFileProtocol ? 1000 : 1500);
options.env = options.env || (window.location.hostname == '127.0.0.1' ||
window.location.hostname == '0.0.0.0' ||
window.location.hostname == 'localhost' ||
(window.location.port &&
window.location.port.length > 0) ||
options.isFileProtocol ? 'development'
: 'production');
var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(window.location.hash);
if (dumpLineNumbers) {
options.dumpLineNumbers = dumpLineNumbers[1];
}
if (options.useFileCache === undefined) {
options.useFileCache = true;
}
if (options.onReady === undefined) {
options.onReady = true;
}
if (options.relativeUrls) {
options.rewriteUrls = 'all';
}
});
/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
/* global Reflect, Promise */
var extendStatics = function(d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
function __extends(d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}
function __spreadArrays() {
for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
for (var r = Array(s), k = 0, i = 0; i < il; i++)
for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
r[k] = a[j];
return r;
}
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) {
__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) {
__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) {
__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) {
__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
};
function createCommonjsModule(fn, module) {
return module = { exports: {} }, fn(module, module.exports), module.exports;
}
var clone_1 = createCommonjsModule(function (module) {
var clone = (function () {
function _instanceof(obj, type) {
return type != null && obj instanceof type;
}
var nativeMap;
try {
nativeMap = Map;
}
catch (_) {
// maybe a reference error because no `Map`. Give it a dummy value that no
// value will ever be an instanceof.
nativeMap = function () { };
}
var nativeSet;
try {
nativeSet = Set;
}
catch (_) {
nativeSet = function () { };
}
var nativePromise;
try {
nativePromise = Promise;
}
catch (_) {
nativePromise = function () { };
}
/**
* Clones (copies) an Object using deep copying.
*
* This function supports circular references by default, but if you are certain
* there are no circular references in your object, you can save some CPU time
* by calling clone(obj, false).
*
* Caution: if `circular` is false and `parent` contains circular references,
* your program may enter an infinite loop and crash.
*
* @param `parent` - the object to be cloned
* @param `circular` - set to true if the object to be cloned may contain
* circular references. (optional - true by default)
* @param `depth` - set to a number if the object is only to be cloned to
* a particular depth. (optional - defaults to Infinity)
* @param `prototype` - sets the prototype to be used when cloning an object.
* (optional - defaults to parent prototype).
* @param `includeNonEnumerable` - set to true if the non-enumerable properties
* should be cloned as well. Non-enumerable properties on the prototype
* chain will be ignored. (optional - false by default)
*/
function clone(parent, circular, depth, prototype, includeNonEnumerable) {
if (typeof circular === 'object') {
depth = circular.depth;
prototype = circular.prototype;
includeNonEnumerable = circular.includeNonEnumerable;
circular = circular.circular;
}
// maintain two arrays for circular references, where corresponding parents
// and children have the same index
var allParents = [];
var allChildren = [];
var useBuffer = typeof Buffer != 'undefined';
if (typeof circular == 'undefined')
circular = true;
if (typeof depth == 'undefined')
depth = Infinity;
// recurse this function so we don't reset allParents and allChildren
function _clone(parent, depth) {
// cloning null always returns null
if (parent === null)
return null;
if (depth === 0)
return parent;
var child;
var proto;
if (typeof parent != 'object') {
return parent;
}
if (_instanceof(parent, nativeMap)) {