Umama-at-Bluchip/Quick-UI

1/*! https://mths.be/cssesc v3.0.0 by @mathias */2'use strict';3 4var object = {};5var hasOwnProperty = object.hasOwnProperty;6var merge = function merge(options, defaults) {7	if (!options) {8		return defaults;9	}10	var result = {};11	for (var key in defaults) {12		// `if (defaults.hasOwnProperty(key) { … }` is not needed here, since13		// only recognized option names are used.14		result[key] = hasOwnProperty.call(options, key) ? options[key] : defaults[key];15	}16	return result;17};18 19var regexAnySingleEscape = /[ -,\.\/:-@\[-\^`\{-~]/;20var regexSingleEscape = /[ -,\.\/:-@\[\]\^`\{-~]/;21var regexAlwaysEscape = /['"\\]/;22var regexExcessiveSpaces = /(^|\\+)?(\\[A-F0-9]{1,6})\x20(?![a-fA-F0-9\x20])/g;23 24// https://mathiasbynens.be/notes/css-escapes#css25var cssesc = function cssesc(string, options) {26	options = merge(options, cssesc.options);27	if (options.quotes != 'single' && options.quotes != 'double') {28		options.quotes = 'single';29	}30	var quote = options.quotes == 'double' ? '"' : '\'';31	var isIdentifier = options.isIdentifier;32 33	var firstChar = string.charAt(0);34	var output = '';35	var counter = 0;36	var length = string.length;37	while (counter < length) {38		var character = string.charAt(counter++);39		var codePoint = character.charCodeAt();40		var value = void 0;41		// If it’s not a printable ASCII character…42		if (codePoint < 0x20 || codePoint > 0x7E) {43			if (codePoint >= 0xD800 && codePoint <= 0xDBFF && counter < length) {44				// It’s a high surrogate, and there is a next character.45				var extra = string.charCodeAt(counter++);46				if ((extra & 0xFC00) == 0xDC00) {47					// next character is low surrogate48					codePoint = ((codePoint & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000;49				} else {50					// It’s an unmatched surrogate; only append this code unit, in case51					// the next code unit is the high surrogate of a surrogate pair.52					counter--;53				}54			}55			value = '\\' + codePoint.toString(16).toUpperCase() + ' ';56		} else {57			if (options.escapeEverything) {58				if (regexAnySingleEscape.test(character)) {59					value = '\\' + character;60				} else {61					value = '\\' + codePoint.toString(16).toUpperCase() + ' ';62				}63			} else if (/[\t\n\f\r\x0B]/.test(character)) {64				value = '\\' + codePoint.toString(16).toUpperCase() + ' ';65			} else if (character == '\\' || !isIdentifier && (character == '"' && quote == character || character == '\'' && quote == character) || isIdentifier && regexSingleEscape.test(character)) {66				value = '\\' + character;67			} else {68				value = character;69			}70		}71		output += value;72	}73 74	if (isIdentifier) {75		if (/^-[-\d]/.test(output)) {76			output = '\\-' + output.slice(1);77		} else if (/\d/.test(firstChar)) {78			output = '\\3' + firstChar + ' ' + output.slice(1);79		}80	}81 82	// Remove spaces after `\HEX` escapes that are not followed by a hex digit,83	// since they’re redundant. Note that this is only possible if the escape84	// sequence isn’t preceded by an odd number of backslashes.85	output = output.replace(regexExcessiveSpaces, function ($0, $1, $2) {86		if ($1 && $1.length % 2) {87			// It’s not safe to remove the space, so don’t.88			return $0;89		}90		// Strip the space.91		return ($1 || '') + $2;92	});93 94	if (!isIdentifier && options.wrap) {95		return quote + output + quote;96	}97	return output;98};99 100// Expose default options (so they can be overridden globally).101cssesc.options = {102	'escapeEverything': false,103	'isIdentifier': false,104	'quotes': 'single',105	'wrap': false106};107 108cssesc.version = '3.0.0';109 110module.exports = cssesc;111