mirror of
https://github.com/S2-/minifyfromhtml.git
synced 2025-08-03 04:10:04 +02:00
795 lines
24 KiB
JavaScript
795 lines
24 KiB
JavaScript
/*
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* Copyright (C) 2007-2018 Diego Perini
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* All rights reserved.
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*
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* nwmatcher-base.js - A fast CSS selector engine and matcher
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*
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* Author: Diego Perini <diego.perini at gmail com>
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* Version: 1.4.4
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* Created: 20070722
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* Release: 20180305
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*
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* License:
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* http://javascript.nwbox.com/NWMatcher/MIT-LICENSE
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* Download:
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* http://javascript.nwbox.com/NWMatcher/nwmatcher.js
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*/
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(function(global, factory) {
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if (typeof module == 'object' && typeof exports == 'object') {
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module.exports = factory;
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} else if (typeof define === 'function' && define["amd"]) {
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define(factory);
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} else {
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global.NW || (global.NW = { });
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global.NW.Dom = factory(global);
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}
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})(this, function(global) {
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var version = 'nwmatcher-1.4.4',
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doc = global.document,
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root = doc.documentElement,
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isSingleMatch,
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isSingleSelect,
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lastSlice,
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lastContext,
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lastPosition,
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lastMatcher,
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lastSelector,
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lastPartsMatch,
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lastPartsSelect,
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prefixes = '(?:[#.:]|::)?',
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operators = '([~*^$|!]?={1})',
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whitespace = '[\\x20\\t\\n\\r\\f]',
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combinators = '\\x20|[>+~](?=[^>+~])',
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pseudoparms = '(?:[-+]?\\d*n)?[-+]?\\d*',
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skip_groups = '\\[.*\\]|\\(.*\\)|\\{.*\\}',
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any_esc_chr = '\\\\.',
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alphalodash = '[_a-zA-Z]',
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non_asc_chr = '[^\\x00-\\x9f]',
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escaped_chr = '\\\\[^\\n\\r\\f0-9a-fA-F]',
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unicode_chr = '\\\\[0-9a-fA-F]{1,6}(?:\\r\\n|' + whitespace + ')?',
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quotedvalue = '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"' + "|'[^'\\\\]*(?:\\\\.[^'\\\\]*)*'",
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reSplitGroup = /([^,\\()[\]]+|\[[^[\]]*\]|\[.*\]|\([^()]+\)|\(.*\)|\{[^{}]+\}|\{.*\}|\\.)+/g,
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reTrimSpaces = RegExp('[\\n\\r\\f]|^' + whitespace + '+|' + whitespace + '+$', 'g'),
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reEscapedChars = /\\([0-9a-fA-F]{1,6}[\x20\t\n\r\f]?|.)|([\x22\x27])/g,
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standardValidator, extendedValidator, reValidator,
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attrcheck, attributes, attrmatcher, pseudoclass,
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reOptimizeSelector, reSimpleNot, reSplitToken,
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Optimize, identifier, extensions = '.+',
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Patterns = {
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children: RegExp('^' + whitespace + '*\\>' + whitespace + '*(.*)'),
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adjacent: RegExp('^' + whitespace + '*\\+' + whitespace + '*(.*)'),
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relative: RegExp('^' + whitespace + '*\\~' + whitespace + '*(.*)'),
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ancestor: RegExp('^' + whitespace + '+(.*)'),
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universal: RegExp('^\\*(.*)')
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},
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Tokens = {
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prefixes: prefixes,
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identifier: identifier,
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attributes: attributes
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},
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QUIRKS_MODE,
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XML_DOCUMENT,
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GEBTN = 'getElementsByTagName' in doc,
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GEBCN = 'getElementsByClassName' in doc,
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IE_LT_9 = typeof doc.addEventListener != 'function',
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LINK_NODES = { a: 1, A: 1, area: 1, AREA: 1, link: 1, LINK: 1 },
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ATTR_BOOLEAN = {
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checked: 1, disabled: 1, ismap: 1,
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multiple: 1, readonly: 1, selected: 1
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},
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ATTR_DEFAULT = {
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value: 'defaultValue',
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checked: 'defaultChecked',
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selected: 'defaultSelected'
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},
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ATTR_URIDATA = {
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action: 2, cite: 2, codebase: 2, data: 2, href: 2,
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longdesc: 2, lowsrc: 2, src: 2, usemap: 2
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},
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HTML_TABLE = {
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'accept': 1, 'accept-charset': 1, 'align': 1, 'alink': 1, 'axis': 1,
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'bgcolor': 1, 'charset': 1, 'checked': 1, 'clear': 1, 'codetype': 1, 'color': 1,
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'compact': 1, 'declare': 1, 'defer': 1, 'dir': 1, 'direction': 1, 'disabled': 1,
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'enctype': 1, 'face': 1, 'frame': 1, 'hreflang': 1, 'http-equiv': 1, 'lang': 1,
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'language': 1, 'link': 1, 'media': 1, 'method': 1, 'multiple': 1, 'nohref': 1,
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'noresize': 1, 'noshade': 1, 'nowrap': 1, 'readonly': 1, 'rel': 1, 'rev': 1,
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'rules': 1, 'scope': 1, 'scrolling': 1, 'selected': 1, 'shape': 1, 'target': 1,
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'text': 1, 'type': 1, 'valign': 1, 'valuetype': 1, 'vlink': 1
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},
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NATIVE_TRAVERSAL_API =
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'nextElementSibling' in root &&
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'previousElementSibling' in root,
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Selectors = { },
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Operators = {
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'=': "n=='%m'",
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'^=': "n.indexOf('%m')==0",
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'*=': "n.indexOf('%m')>-1",
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'|=': "(n+'-').indexOf('%m-')==0",
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'~=': "(' '+n+' ').indexOf(' %m ')>-1",
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'$=': "n.substr(n.length-'%m'.length)=='%m'"
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},
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concatCall =
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function(data, elements, callback) {
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var i = -1, element;
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while ((element = elements[++i])) {
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if (false === callback(data[data.length] = element)) { break; }
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}
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return data;
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},
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switchContext =
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function(from, force) {
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var oldDoc = doc;
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lastContext = from;
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doc = from.ownerDocument || from;
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if (force || oldDoc !== doc) {
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root = doc.documentElement;
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XML_DOCUMENT = doc.createElement('DiV').nodeName == 'DiV';
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QUIRKS_MODE = !XML_DOCUMENT &&
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typeof doc.compatMode == 'string' ?
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doc.compatMode.indexOf('CSS') < 0 :
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(function() {
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var style = doc.createElement('div').style;
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return style && (style.width = 1) && style.width == '1px';
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})();
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Config.CACHING && Dom.setCache(true, doc);
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}
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},
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codePointToUTF16 =
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function(codePoint) {
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if (codePoint < 1 || codePoint > 0x10ffff ||
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(codePoint > 0xd7ff && codePoint < 0xe000)) {
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return '\\ufffd';
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}
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if (codePoint < 0x10000) {
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var lowHex = '000' + codePoint.toString(16);
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return '\\u' + lowHex.substr(lowHex.length - 4);
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}
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return '\\u' + (((codePoint - 0x10000) >> 0x0a) + 0xd800).toString(16) +
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'\\u' + (((codePoint - 0x10000) % 0x400) + 0xdc00).toString(16);
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},
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stringFromCodePoint =
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function(codePoint) {
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if (codePoint < 1 || codePoint > 0x10ffff ||
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(codePoint > 0xd7ff && codePoint < 0xe000)) {
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return '\ufffd';
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}
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if (codePoint < 0x10000) {
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return String.fromCharCode(codePoint);
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}
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return String.fromCodePoint ?
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String.fromCodePoint(codePoint) :
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String.fromCharCode(
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((codePoint - 0x10000) >> 0x0a) + 0xd800,
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((codePoint - 0x10000) % 0x400) + 0xdc00);
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},
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convertEscapes =
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function(str) {
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return str.replace(reEscapedChars,
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function(substring, p1, p2) {
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return p2 ? '\\' + p2 :
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(/^[0-9a-fA-F]/).test(p1) ? codePointToUTF16(parseInt(p1, 16)) :
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(/^[\\\x22\x27]/).test(p1) ? substring :
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p1;
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}
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);
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},
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unescapeIdentifier =
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function(str) {
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return str.replace(reEscapedChars,
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function(substring, p1, p2) {
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return p2 ? p2 :
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(/^[0-9a-fA-F]/).test(p1) ? stringFromCodePoint(parseInt(p1, 16)) :
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(/^[\\\x22\x27]/).test(p1) ? substring :
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p1;
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}
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);
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},
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byIdRaw =
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function(id, elements) {
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var i = -1, element;
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while ((element = elements[++i])) {
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if (element.getAttribute('id') == id) {
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break;
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}
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}
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return element || null;
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},
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_byId = !IE_LT_9 ?
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function(id, from) {
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id = (/\\/).test(id) ? unescapeIdentifier(id) : id;
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return from.getElementById && from.getElementById(id) ||
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byIdRaw(id, from.getElementsByTagName('*'));
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} :
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function(id, from) {
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var element = null;
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id = (/\\/).test(id) ? unescapeIdentifier(id) : id;
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if (XML_DOCUMENT || from.nodeType != 9) {
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return byIdRaw(id, from.getElementsByTagName('*'));
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}
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if ((element = from.getElementById(id)) &&
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element.name == id && from.getElementsByName) {
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return byIdRaw(id, from.getElementsByName(id));
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}
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return element;
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},
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byId =
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function(id, from) {
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from || (from = doc);
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if (lastContext !== from) { switchContext(from); }
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return _byId(id, from);
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},
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byTagRaw =
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function(tag, from) {
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var any = tag == '*', element = from, elements = [ ], next = element.firstChild;
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any || (tag = tag.toUpperCase());
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while ((element = next)) {
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if (element.tagName > '@' && (any || element.tagName.toUpperCase() == tag)) {
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elements[elements.length] = element;
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}
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if ((next = element.firstChild || element.nextSibling)) continue;
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while (!next && (element = element.parentNode) && element !== from) {
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next = element.nextSibling;
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}
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}
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return elements;
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},
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getAttribute = !IE_LT_9 ?
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function(node, attribute) {
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return node.getAttribute(attribute);
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} :
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function(node, attribute) {
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attribute = attribute.toLowerCase();
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if (typeof node[attribute] == 'object') {
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return node.attributes[attribute] &&
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node.attributes[attribute].value;
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}
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return (
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attribute == 'type' ? node.getAttribute(attribute) :
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ATTR_URIDATA[attribute] ? node.getAttribute(attribute, 2) :
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ATTR_BOOLEAN[attribute] ? node.getAttribute(attribute) ? attribute : 'false' :
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(node = node.getAttributeNode(attribute)) && node.value);
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},
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hasAttribute = !IE_LT_9 && root.hasAttribute ?
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function(node, attribute) {
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return node.hasAttribute(attribute);
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} :
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function(node, attribute) {
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var obj = node.getAttributeNode(attribute = attribute.toLowerCase());
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return ATTR_DEFAULT[attribute] && attribute != 'value' ?
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node[ATTR_DEFAULT[attribute]] : obj && obj.specified;
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},
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configure =
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function(option) {
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if (typeof option == 'string') { return !!Config[option]; }
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if (typeof option != 'object') { return Config; }
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for (var i in option) {
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Config[i] = !!option[i];
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if (i == 'SIMPLENOT') {
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matchContexts = { };
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matchResolvers = { };
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selectContexts = { };
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selectResolvers = { };
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}
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}
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setIdentifierSyntax();
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reValidator = RegExp(Config.SIMPLENOT ?
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standardValidator : extendedValidator);
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return true;
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},
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emit =
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function(message) {
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if (Config.VERBOSITY) { throw Error(message); }
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if (Config.LOGERRORS && console && console.log) {
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console.log(message);
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}
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},
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Config = {
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CACHING: false,
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ESCAPECHR: true,
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NON_ASCII: true,
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SELECTOR3: true,
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UNICODE16: true,
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SHORTCUTS: false,
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SIMPLENOT: true,
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SVG_LCASE: false,
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UNIQUE_ID: true,
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USE_HTML5: true,
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VERBOSITY: true,
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LOGERRORS: true
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},
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initialize =
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function(doc) {
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setIdentifierSyntax();
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switchContext(doc, true);
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},
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setIdentifierSyntax =
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function() {
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var syntax = '', start = Config['SELECTOR3'] ? '-{2}|' : '';
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Config['NON_ASCII'] && (syntax += '|' + non_asc_chr);
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Config['UNICODE16'] && (syntax += '|' + unicode_chr);
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Config['ESCAPECHR'] && (syntax += '|' + escaped_chr);
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syntax += (Config['UNICODE16'] || Config['ESCAPECHR']) ? '' : '|' + any_esc_chr;
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identifier = '-?(?:' + start + alphalodash + syntax + ')(?:-|[0-9]|' + alphalodash + syntax + ')*';
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attrcheck = '(' + quotedvalue + '|' + identifier + ')';
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attributes = whitespace + '*(' + identifier + '(?::' + identifier + ')?)' +
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whitespace + '*(?:' + operators + whitespace + '*' + attrcheck + ')?' + whitespace + '*' + '(i)?' + whitespace + '*';
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attrmatcher = attributes.replace(attrcheck, '([\\x22\\x27]*)((?:\\\\?.)*?)\\3');
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pseudoclass = '((?:' +
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pseudoparms + '|' + quotedvalue + '|' +
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prefixes + identifier + '|' +
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'\\[' + attributes + '\\]|' +
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'\\(.+\\)|' + whitespace + '*|' +
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',)+)';
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standardValidator =
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'(?=[\\x20\\t\\n\\r\\f]*[^>+~(){}<>])' +
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'(' +
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'\\*' +
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'|(?:' + prefixes + identifier + ')' +
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'|' + combinators +
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'|\\[' + attributes + '\\]' +
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'|\\(' + pseudoclass + '\\)' +
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'|\\{' + extensions + '\\}' +
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'|(?:,|' + whitespace + '*)' +
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')+';
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reSimpleNot = RegExp('^(' +
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'(?!:not)' +
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'(' + prefixes + identifier +
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'|\\([^()]*\\))+' +
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'|\\[' + attributes + '\\]' +
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')$');
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reSplitToken = RegExp('(' +
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prefixes + identifier + '|' +
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'\\[' + attributes + '\\]|' +
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'\\(' + pseudoclass + '\\)|' +
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'\\\\.|[^\\x20\\t\\n\\r\\f>+~])+', 'g');
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reOptimizeSelector = RegExp(identifier + '|^$');
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Optimize = {
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ID: RegExp('^\\*?#(' + identifier + ')|' + skip_groups),
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TAG: RegExp('^(' + identifier + ')|' + skip_groups),
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CLASS: RegExp('^\\.(' + identifier + '$)|' + skip_groups)
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};
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Patterns.id = RegExp('^#(' + identifier + ')(.*)');
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Patterns.tagName = RegExp('^(' + identifier + ')(.*)');
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Patterns.className = RegExp('^\\.(' + identifier + ')(.*)');
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Patterns.attribute = RegExp('^\\[' + attrmatcher + '\\](.*)');
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Tokens.identifier = identifier;
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Tokens.attributes = attributes;
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extendedValidator = standardValidator.replace(pseudoclass, '.*');
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reValidator = RegExp(standardValidator);
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},
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ACCEPT_NODE = 'r[r.length]=c[k];if(f&&false===f(c[k]))break main;else continue main;',
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REJECT_NODE = IE_LT_9 ? 'if(e.nodeName<"A")continue;' : '',
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TO_UPPER_CASE = IE_LT_9 ? '.toUpperCase()' : '',
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compile =
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function(selector, source, mode) {
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var parts = typeof selector == 'string' ? selector.match(reSplitGroup) : selector;
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typeof source == 'string' || (source = '');
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if (parts.length == 1) {
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source += compileSelector(parts[0], mode ? ACCEPT_NODE : 'f&&f(k);return true;', mode);
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} else {
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var i = -1, seen = { }, token;
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while ((token = parts[++i])) {
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token = token.replace(reTrimSpaces, '');
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if (!seen[token] && (seen[token] = true)) {
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source += compileSelector(token, mode ? ACCEPT_NODE : 'f&&f(k);return true;', mode);
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}
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}
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}
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if (mode) {
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return Function('c,s,d,h,g,f',
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'var N,n,x=0,k=-1,e,r=[];main:while((e=c[++k])){' + source + '}return r;');
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} else {
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return Function('e,s,d,h,g,f',
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'var N,n,x=0,k=e;' + source + 'return false;');
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}
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},
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compileSelector =
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function(selector, source, mode) {
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var k = 0, expr, match, result, status, test, type;
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while (selector) {
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k++;
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if ((match = selector.match(Patterns.universal))) {
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expr = '';
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}
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else if ((match = selector.match(Patterns.id))) {
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match[1] = (/\\/).test(match[1]) ? convertEscapes(match[1]) : match[1];
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source = 'if(' + (XML_DOCUMENT ?
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's.getAttribute(e,"id")' :
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'(e.submit?s.getAttribute(e,"id"):e.id)') +
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'=="' + match[1] + '"' +
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'){' + source + '}';
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}
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else if ((match = selector.match(Patterns.tagName))) {
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test = Config.SVG_LCASE ? '||e.nodeName=="' + match[1].toLowerCase() + '"' : '';
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source = 'if(e.nodeName' + (XML_DOCUMENT ?
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'=="' + match[1] + '"' : TO_UPPER_CASE +
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'=="' + match[1].toUpperCase() + '"' + test) +
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'){' + source + '}';
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}
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|
|
else if ((match = selector.match(Patterns.className))) {
|
|
match[1] = (/\\/).test(match[1]) ? convertEscapes(match[1]) : match[1];
|
|
match[1] = QUIRKS_MODE ? match[1].toLowerCase() : match[1];
|
|
source = 'if((n=' + (XML_DOCUMENT ?
|
|
'e.getAttribute("class")' : 'e.className') +
|
|
')&&n.length&&(" "+' + (QUIRKS_MODE ? 'n.toLowerCase()' : 'n') +
|
|
'.replace(/' + whitespace + '+/g," ")+" ").indexOf(" ' + match[1] + ' ")>-1' +
|
|
'){' + source + '}';
|
|
}
|
|
|
|
else if ((match = selector.match(Patterns.attribute))) {
|
|
expr = match[1].split(':');
|
|
expr = expr.length == 2 ? expr[1] : expr[0] + '';
|
|
|
|
if (match[2] && !Operators[match[2]]) {
|
|
emit('Unsupported operator in attribute selectors "' + selector + '"');
|
|
return '';
|
|
}
|
|
test = 'false';
|
|
if (match[2] && match[4] && (test = Operators[match[2]])) {
|
|
match[4] = (/\\/).test(match[4]) ? convertEscapes(match[4]) : match[4];
|
|
type = match[5] == 'i' || HTML_TABLE[expr.toLowerCase()];
|
|
test = test.replace(/\%m/g, type ? match[4].toLowerCase() : match[4]);
|
|
} else if (match[2] == '!=' || match[2] == '=') {
|
|
test = 'n' + match[2] + '=""';
|
|
}
|
|
source = 'if(n=s.hasAttribute(e,"' + match[1] + '")){' +
|
|
(match[2] ? 'n=s.getAttribute(e,"' + match[1] + '")' : '') +
|
|
(type && match[2] ? '.toLowerCase();' : ';') +
|
|
'if(' + (match[2] ? test : 'n') + '){' + source + '}}';
|
|
}
|
|
|
|
else if ((match = selector.match(Patterns.adjacent))) {
|
|
source = NATIVE_TRAVERSAL_API ?
|
|
'var N' + k + '=e;if((e=e.previousElementSibling)){' + source + '}e=N' + k + ';' :
|
|
'var N' + k + '=e;while((e=e.previousSibling)){if(e.nodeType==1){' + source + 'break;}}e=N' + k + ';';
|
|
}
|
|
|
|
else if ((match = selector.match(Patterns.relative))) {
|
|
source = NATIVE_TRAVERSAL_API ?
|
|
'var N' + k + '=e;while((e=e.previousElementSibling)){' + source + '}e=N' + k + ';' :
|
|
'var N' + k + '=e;while((e=e.previousSibling)){if(e.nodeType==1){' + source + '}}e=N' + k + ';';
|
|
}
|
|
|
|
else if ((match = selector.match(Patterns.children))) {
|
|
source = 'var N' + k + '=e;if((e=e.parentNode)&&e.nodeType==1){' + source + '}e=N' + k + ';';
|
|
}
|
|
|
|
else if ((match = selector.match(Patterns.ancestor))) {
|
|
source = 'var N' + k + '=e;while((e=e.parentNode)&&e.nodeType==1){' + source + '}e=N' + k + ';';
|
|
}
|
|
|
|
else {
|
|
|
|
expr = false;
|
|
status = false;
|
|
for (expr in Selectors) {
|
|
if ((match = selector.match(Selectors[expr].Expression)) && match[1]) {
|
|
result = Selectors[expr].Callback(match, source);
|
|
if ('match' in result) { match = result.match; }
|
|
source = result.source;
|
|
status = result.status;
|
|
if (status) { break; }
|
|
}
|
|
}
|
|
|
|
if (!status) {
|
|
emit('Unknown pseudo-class selector "' + selector + '"');
|
|
return '';
|
|
}
|
|
|
|
if (!expr) {
|
|
emit('Unknown token in selector "' + selector + '"');
|
|
return '';
|
|
}
|
|
|
|
}
|
|
|
|
if (!match) {
|
|
emit('Invalid syntax in selector "' + selector + '"');
|
|
return '';
|
|
}
|
|
|
|
selector = match && match[match.length - 1];
|
|
}
|
|
|
|
return source;
|
|
},
|
|
|
|
match =
|
|
function(element, selector, from, callback) {
|
|
|
|
var parts;
|
|
|
|
if (!(element && element.nodeType == 1)) {
|
|
emit('Invalid element argument');
|
|
return false;
|
|
} else if (typeof selector != 'string') {
|
|
emit('Invalid selector argument');
|
|
return false;
|
|
} else if (lastContext !== from) {
|
|
switchContext(from || (from = element.ownerDocument));
|
|
}
|
|
|
|
selector = selector.
|
|
replace(reTrimSpaces, '').
|
|
replace(/\x00|\\$/g, '\ufffd');
|
|
|
|
Config.SHORTCUTS && (selector = Dom.shortcuts(selector, element, from));
|
|
|
|
if (lastMatcher != selector) {
|
|
if ((parts = selector.match(reValidator)) && parts[0] == selector) {
|
|
isSingleMatch = (parts = selector.match(reSplitGroup)).length < 2;
|
|
lastMatcher = selector;
|
|
lastPartsMatch = parts;
|
|
} else {
|
|
emit('The string "' + selector + '", is not a valid CSS selector');
|
|
return false;
|
|
}
|
|
} else parts = lastPartsMatch;
|
|
|
|
if (!matchResolvers[selector] || matchContexts[selector] !== from) {
|
|
matchResolvers[selector] = compile(isSingleMatch ? [selector] : parts, '', false);
|
|
matchContexts[selector] = from;
|
|
}
|
|
|
|
return matchResolvers[selector](element, Snapshot, doc, root, from, callback);
|
|
},
|
|
|
|
first =
|
|
function(selector, from) {
|
|
return select(selector, from, function() { return false; })[0] || null;
|
|
},
|
|
|
|
select =
|
|
function(selector, from, callback) {
|
|
|
|
var i, changed, element, elements, parts, token, original = selector;
|
|
|
|
if (arguments.length === 0) {
|
|
emit('Not enough arguments');
|
|
return [ ];
|
|
} else if (typeof selector != 'string') {
|
|
return [ ];
|
|
} else if (from && !(/1|9|11/).test(from.nodeType)) {
|
|
emit('Invalid or illegal context element');
|
|
return [ ];
|
|
} else if (lastContext !== from) {
|
|
switchContext(from || (from = doc));
|
|
}
|
|
|
|
if (Config.CACHING && (elements = Dom.loadResults(original, from, doc, root))) {
|
|
return callback ? concatCall([ ], elements, callback) : elements;
|
|
}
|
|
|
|
selector = selector.
|
|
replace(reTrimSpaces, '').
|
|
replace(/\x00|\\$/g, '\ufffd');
|
|
|
|
Config.SHORTCUTS && (selector = Dom.shortcuts(selector, from));
|
|
|
|
if ((changed = lastSelector != selector)) {
|
|
if ((parts = selector.match(reValidator)) && parts[0] == selector) {
|
|
isSingleSelect = (parts = selector.match(reSplitGroup)).length < 2;
|
|
lastSelector = selector;
|
|
lastPartsSelect = parts;
|
|
} else {
|
|
emit('The string "' + selector + '", is not a valid CSS selector');
|
|
return [ ];
|
|
}
|
|
} else parts = lastPartsSelect;
|
|
|
|
if (from.nodeType == 11) {
|
|
|
|
elements = byTagRaw('*', from);
|
|
|
|
} else if (isSingleSelect) {
|
|
|
|
if (changed) {
|
|
parts = selector.match(reSplitToken);
|
|
token = parts[parts.length - 1];
|
|
lastSlice = token.split(':not');
|
|
lastSlice = lastSlice[lastSlice.length - 1];
|
|
lastPosition = selector.length - token.length;
|
|
}
|
|
|
|
if (Config.UNIQUE_ID && lastSlice && (parts = lastSlice.match(Optimize.ID)) && (token = parts[1])) {
|
|
if ((element = _byId(token, from))) {
|
|
if (match(element, selector)) {
|
|
callback && callback(element);
|
|
elements = [element];
|
|
} else elements = [ ];
|
|
}
|
|
}
|
|
|
|
else if (Config.UNIQUE_ID && (parts = selector.match(Optimize.ID)) && (token = parts[1])) {
|
|
if ((element = _byId(token, doc))) {
|
|
if ('#' + token == selector) {
|
|
callback && callback(element);
|
|
elements = [element];
|
|
} else if (/[>+~]/.test(selector)) {
|
|
from = element.parentNode;
|
|
} else {
|
|
from = element;
|
|
}
|
|
} else elements = [ ];
|
|
}
|
|
|
|
if (elements) {
|
|
Config.CACHING && Dom.saveResults(original, from, doc, elements);
|
|
return elements;
|
|
}
|
|
|
|
if (!XML_DOCUMENT && GEBTN && lastSlice && (parts = lastSlice.match(Optimize.TAG)) && (token = parts[1])) {
|
|
if ((elements = from.getElementsByTagName(token)).length === 0) { return [ ]; }
|
|
selector = selector.slice(0, lastPosition) + selector.slice(lastPosition).replace(token, '*');
|
|
}
|
|
|
|
else if (!XML_DOCUMENT && GEBCN && lastSlice && (parts = lastSlice.match(Optimize.CLASS)) && (token = parts[1])) {
|
|
if ((elements = from.getElementsByClassName(unescapeIdentifier(token))).length === 0) { return [ ]; }
|
|
selector = selector.slice(0, lastPosition) + selector.slice(lastPosition).replace('.' + token,
|
|
reOptimizeSelector.test(selector.charAt(selector.indexOf(token) - 1)) ? '' : '*');
|
|
}
|
|
|
|
}
|
|
|
|
if (!elements) {
|
|
if (IE_LT_9) {
|
|
elements = /^(?:applet|object)$/i.test(from.nodeName) ? from.children : byTagRaw('*', from);
|
|
} else {
|
|
elements = from.getElementsByTagName('*');
|
|
}
|
|
}
|
|
|
|
if (!selectResolvers[selector] || selectContexts[selector] !== from) {
|
|
selectResolvers[selector] = compile(isSingleSelect ? [selector] : parts, REJECT_NODE, true);
|
|
selectContexts[selector] = from;
|
|
}
|
|
|
|
elements = selectResolvers[selector](elements, Snapshot, doc, root, from, callback);
|
|
|
|
Config.CACHING && Dom.saveResults(original, from, doc, elements);
|
|
|
|
return elements;
|
|
},
|
|
|
|
FN = function(x) { return x; },
|
|
|
|
matchContexts = { },
|
|
matchResolvers = { },
|
|
|
|
selectContexts = { },
|
|
selectResolvers = { },
|
|
|
|
Snapshot = {
|
|
byId: _byId,
|
|
match: match,
|
|
select: select,
|
|
getAttribute: getAttribute,
|
|
hasAttribute: hasAttribute
|
|
},
|
|
|
|
Dom = {
|
|
|
|
ACCEPT_NODE: ACCEPT_NODE,
|
|
|
|
byId: byId,
|
|
match: match,
|
|
first: first,
|
|
select: select,
|
|
compile: compile,
|
|
configure: configure,
|
|
|
|
setCache: FN,
|
|
shortcuts: FN,
|
|
loadResults: FN,
|
|
saveResults: FN,
|
|
|
|
emit: emit,
|
|
Config: Config,
|
|
Snapshot: Snapshot,
|
|
|
|
Operators: Operators,
|
|
Selectors: Selectors,
|
|
|
|
Tokens: Tokens,
|
|
Version: version,
|
|
|
|
registerOperator:
|
|
function(symbol, resolver) {
|
|
Operators[symbol] || (Operators[symbol] = resolver);
|
|
},
|
|
|
|
registerSelector:
|
|
function(name, rexp, func) {
|
|
Selectors[name] || (Selectors[name] = {
|
|
Expression: rexp,
|
|
Callback: func
|
|
});
|
|
}
|
|
|
|
};
|
|
|
|
initialize(doc);
|
|
|
|
return Dom;
|
|
});
|