src/selector.js

   1 /*!
   2  * Sizzle CSS Selector Engine - v1.0
   3  *  Copyright 2009, The Dojo Foundation
   4  *  Released under the MIT, BSD, and GPL Licenses.
   5  *  More information: http://sizzlejs.com/
   6  */
   7 (function(){
   8
   9 var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?/g,
  10         done = 0,
  11         toString = Object.prototype.toString,
  12         hasDuplicate = false;
  13
  14 var Sizzle = function(selector, context, results, seed) {
  15         results = results || [];
  16         var origContext = context = context || document;
  17
  18         if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
  19                 return [];
  20         }
  21
  22         if ( !selector || typeof selector !== "string" ) {
  23                 return results;
  24         }
  25
  26         var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context);
  27
  28         // Reset the position of the chunker regexp (start from head)
  29         chunker.lastIndex = 0;
  30
  31         while ( (m = chunker.exec(selector)) !== null ) {
  32                 parts.push( m[1] );
  33
  34                 if ( m[2] ) {
  35                         extra = RegExp.rightContext;
  36                         break;
  37                 }
  38         }
  39
  40         if ( parts.length > 1 && origPOS.exec( selector ) ) {
  41                 if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
  42                         set = posProcess( parts[0] + parts[1], context );
  43                 } else {
  44                         set = Expr.relative[ parts[0] ] ?
  45                                 [ context ] :
  46                                 Sizzle( parts.shift(), context );
  47
  48                         while ( parts.length ) {
  49                                 selector = parts.shift();
  50
  51                                 if ( Expr.relative[ selector ] )
  52                                         selector += parts.shift();
  53
  54                                 set = posProcess( selector, set );
  55                         }
  56                 }
  57         } else {
  58                 // Take a shortcut and set the context if the root selector is an ID
  59                 // (but not if it'll be faster if the inner selector is an ID)
  60                 if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
  61                                 Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
  62                         var ret = Sizzle.find( parts.shift(), context, contextXML );
  63                         context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
  64                 }
  65
  66                 if ( context ) {
  67                         var ret = seed ?
  68                                 { expr: parts.pop(), set: makeArray(seed) } :
  69                                 Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
  70                         set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
  71
  72                         if ( parts.length > 0 ) {
  73                                 checkSet = makeArray(set);
  74                         } else {
  75                                 prune = false;
  76                         }
  77
  78                         while ( parts.length ) {
  79                                 var cur = parts.pop(), pop = cur;
  80
  81                                 if ( !Expr.relative[ cur ] ) {
  82                                         cur = "";
  83                                 } else {
  84                                         pop = parts.pop();
  85                                 }
  86
  87                                 if ( pop == null ) {
  88                                         pop = context;
  89                                 }
  90
  91                                 Expr.relative[ cur ]( checkSet, pop, contextXML );
  92                         }
  93                 } else {
  94                         checkSet = parts = [];
  95                 }
  96         }
  97
  98         if ( !checkSet ) {
  99                 checkSet = set;
 100         }
 101
 102         if ( !checkSet ) {
 103                 throw "Syntax error, unrecognized expression: " + (cur || selector);
 104         }
 105
 106         if ( toString.call(checkSet) === "[object Array]" ) {
 107                 if ( !prune ) {
 108                         results.push.apply( results, checkSet );
 109                 } else if ( context && context.nodeType === 1 ) {
 110                         for ( var i = 0; checkSet[i] != null; i++ ) {
 111                                 if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
 112                                         results.push( set[i] );
 113                                 }
 114                         }
 115                 } else {
 116                         for ( var i = 0; checkSet[i] != null; i++ ) {
 117                                 if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
 118                                         results.push( set[i] );
 119                                 }
 120                         }
 121                 }
 122         } else {
 123                 makeArray( checkSet, results );
 124         }
 125
 126         if ( extra ) {
 127                 Sizzle( extra, origContext, results, seed );
 128                 Sizzle.uniqueSort( results );
 129         }
 130
 131         return results;
 132 };
 133
 134 Sizzle.uniqueSort = function(results){
 135         if ( sortOrder ) {
 136                 hasDuplicate = false;
 137                 results.sort(sortOrder);
 138
 139                 if ( hasDuplicate ) {
 140                         for ( var i = 1; i < results.length; i++ ) {
 141                                 if ( results[i] === results[i-1] ) {
 142                                         results.splice(i--, 1);
 143                                 }
 144                         }
 145                 }
 146         }
 147
 148         return results;
 149 };
 150
 151 Sizzle.matches = function(expr, set){
 152         return Sizzle(expr, null, null, set);
 153 };
 154
 155 Sizzle.find = function(expr, context, isXML){
 156         var set, match;
 157
 158         if ( !expr ) {
 159                 return [];
 160         }
 161
 162         for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
 163                 var type = Expr.order[i], match;
 164
 165                 if ( (match = Expr.match[ type ].exec( expr )) ) {
 166                         var left = RegExp.leftContext;
 167
 168                         if ( left.substr( left.length - 1 ) !== "\\" ) {
 169                                 match[1] = (match[1] || "").replace(/\\/g, "");
 170                                 set = Expr.find[ type ]( match, context, isXML );
 171                                 if ( set != null ) {
 172                                         expr = expr.replace( Expr.match[ type ], "" );
 173                                         break;
 174                                 }
 175                         }
 176                 }
 177         }
 178
 179         if ( !set ) {
 180                 set = context.getElementsByTagName("*");
 181         }
 182
 183         return {set: set, expr: expr};
 184 };
 185
 186 Sizzle.filter = function(expr, set, inplace, not){
 187         var old = expr, result = [], curLoop = set, match, anyFound,
 188                 isXMLFilter = set && set[0] && isXML(set[0]);
 189
 190         while ( expr && set.length ) {
 191                 for ( var type in Expr.filter ) {
 192                         if ( (match = Expr.match[ type ].exec( expr )) != null ) {
 193                                 var filter = Expr.filter[ type ], found, item;
 194                                 anyFound = false;
 195
 196                                 if ( curLoop == result ) {
 197                                         result = [];
 198                                 }
 199
 200                                 if ( Expr.preFilter[ type ] ) {
 201                                         match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
 202
 203                                         if ( !match ) {
 204                                                 anyFound = found = true;
 205                                         } else if ( match === true ) {
 206                                                 continue;
 207                                         }
 208                                 }
 209
 210                                 if ( match ) {
 211                                         for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
 212                                                 if ( item ) {
 213                                                         found = filter( item, match, i, curLoop );
 214                                                         var pass = not ^ !!found;
 215
 216                                                         if ( inplace && found != null ) {
 217                                                                 if ( pass ) {
 218                                                                         anyFound = true;
 219                                                                 } else {
 220                                                                         curLoop[i] = false;
 221                                                                 }
 222                                                         } else if ( pass ) {
 223                                                                 result.push( item );
 224                                                                 anyFound = true;
 225                                                         }
 226                                                 }
 227                                         }
 228                                 }
 229
 230                                 if ( found !== undefined ) {
 231                                         if ( !inplace ) {
 232                                                 curLoop = result;
 233                                         }
 234
 235                                         expr = expr.replace( Expr.match[ type ], "" );
 236
 237                                         if ( !anyFound ) {
 238                                                 return [];
 239                                         }
 240
 241                                         break;
 242                                 }
 243                         }
 244                 }
 245
 246                 // Improper expression
 247                 if ( expr == old ) {
 248                         if ( anyFound == null ) {
 249                                 throw "Syntax error, unrecognized expression: " + expr;
 250                         } else {
 251                                 break;
 252                         }
 253                 }
 254
 255                 old = expr;
 256         }
 257
 258         return curLoop;
 259 };
 260
 261 var Expr = Sizzle.selectors = {
 262         order: [ "ID", "NAME", "TAG" ],
 263         match: {
 264                 ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 265                 CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
 266                 NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
 267                 ATTR: /\[\s*((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
 268                 TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
 269                 CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
 270                 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
 271                 PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
 272         },
 273         attrMap: {
 274                 "class": "className",
 275                 "for": "htmlFor"
 276         },
 277         attrHandle: {
 278                 href: function(elem){
 279                         return elem.getAttribute("href");
 280                 }
 281         },
 282         relative: {
 283                 "+": function(checkSet, part, isXML){
 284                         var isPartStr = typeof part === "string",
 285                                 isTag = isPartStr && !/\W/.test(part),
 286                                 isPartStrNotTag = isPartStr && !isTag;
 287
 288                         if ( isTag && !isXML ) {
 289                                 part = part.toUpperCase();
 290                         }
 291
 292                         for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
 293                                 if ( (elem = checkSet[i]) ) {
 294                                         while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
 295
 296                                         checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
 297                                                 elem || false :
 298                                                 elem === part;
 299                                 }
 300                         }
 301
 302                         if ( isPartStrNotTag ) {
 303                                 Sizzle.filter( part, checkSet, true );
 304                         }
 305                 },
 306                 ">": function(checkSet, part, isXML){
 307                         var isPartStr = typeof part === "string";
 308
 309                         if ( isPartStr && !/\W/.test(part) ) {
 310                                 part = isXML ? part : part.toUpperCase();
 311
 312                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 313                                         var elem = checkSet[i];
 314                                         if ( elem ) {
 315                                                 var parent = elem.parentNode;
 316                                                 checkSet[i] = parent.nodeName === part ? parent : false;
 317                                         }
 318                                 }
 319                         } else {
 320                                 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 321                                         var elem = checkSet[i];
 322                                         if ( elem ) {
 323                                                 checkSet[i] = isPartStr ?
 324                                                         elem.parentNode :
 325                                                         elem.parentNode === part;
 326                                         }
 327                                 }
 328
 329                                 if ( isPartStr ) {
 330                                         Sizzle.filter( part, checkSet, true );
 331                                 }
 332                         }
 333                 },
 334                 "": function(checkSet, part, isXML){
 335                         var doneName = done++, checkFn = dirCheck;
 336
 337                         if ( !/\W/.test(part) ) {
 338                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 339                                 checkFn = dirNodeCheck;
 340                         }
 341
 342                         checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
 343                 },
 344                 "~": function(checkSet, part, isXML){
 345                         var doneName = done++, checkFn = dirCheck;
 346
 347                         if ( typeof part === "string" && !/\W/.test(part) ) {
 348                                 var nodeCheck = part = isXML ? part : part.toUpperCase();
 349                                 checkFn = dirNodeCheck;
 350                         }
 351
 352                         checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
 353                 }
 354         },
 355         find: {
 356                 ID: function(match, context, isXML){
 357                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 358                                 var m = context.getElementById(match[1]);
 359                                 return m ? [m] : [];
 360                         }
 361                 },
 362                 NAME: function(match, context, isXML){
 363                         if ( typeof context.getElementsByName !== "undefined" ) {
 364                                 var ret = [], results = context.getElementsByName(match[1]);
 365
 366                                 for ( var i = 0, l = results.length; i < l; i++ ) {
 367                                         if ( results[i].getAttribute("name") === match[1] ) {
 368                                                 ret.push( results[i] );
 369                                         }
 370                                 }
 371
 372                                 return ret.length === 0 ? null : ret;
 373                         }
 374                 },
 375                 TAG: function(match, context){
 376                         return context.getElementsByTagName(match[1]);
 377                 }
 378         },
 379         preFilter: {
 380                 CLASS: function(match, curLoop, inplace, result, not, isXML){
 381                         match = " " + match[1].replace(/\\/g, "") + " ";
 382
 383                         if ( isXML ) {
 384                                 return match;
 385                         }
 386
 387                         for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
 388                                 if ( elem ) {
 389                                         if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
 390                                                 if ( !inplace )
 391                                                         result.push( elem );
 392                                         } else if ( inplace ) {
 393                                                 curLoop[i] = false;
 394                                         }
 395                                 }
 396                         }
 397
 398                         return false;
 399                 },
 400                 ID: function(match){
 401                         return match[1].replace(/\\/g, "");
 402                 },
 403                 TAG: function(match, curLoop){
 404                         for ( var i = 0; curLoop[i] === false; i++ ){}
 405                         return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
 406                 },
 407                 CHILD: function(match){
 408                         if ( match[1] == "nth" ) {
 409                                 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
 410                                 var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
 411                                         match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
 412                                         !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
 413
 414                                 // calculate the numbers (first)n+(last) including if they are negative
 415                                 match[2] = (test[1] + (test[2] || 1)) - 0;
 416                                 match[3] = test[3] - 0;
 417                         }
 418
 419                         // TODO: Move to normal caching system
 420                         match[0] = done++;
 421
 422                         return match;
 423                 },
 424                 ATTR: function(match, curLoop, inplace, result, not, isXML){
 425                         var name = match[1].replace(/\\/g, "");
 426
 427                         if ( !isXML && Expr.attrMap[name] ) {
 428                                 match[1] = Expr.attrMap[name];
 429                         }
 430
 431                         if ( match[2] === "~=" ) {
 432                                 match[4] = " " + match[4] + " ";
 433                         }
 434
 435                         return match;
 436                 },
 437                 PSEUDO: function(match, curLoop, inplace, result, not){
 438                         if ( match[1] === "not" ) {
 439                                 // If we're dealing with a complex expression, or a simple one
 440                                 if ( chunker.exec(match[3]).length > 1 || /^\w/.test(match[3]) ) {
 441                                         match[3] = Sizzle(match[3], null, null, curLoop);
 442                                 } else {
 443                                         var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
 444                                         if ( !inplace ) {
 445                                                 result.push.apply( result, ret );
 446                                         }
 447                                         return false;
 448                                 }
 449                         } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
 450                                 return true;
 451                         }
 452
 453                         return match;
 454                 },
 455                 POS: function(match){
 456                         match.unshift( true );
 457                         return match;
 458                 }
 459         },
 460         filters: {
 461                 enabled: function(elem){
 462                         return elem.disabled === false && elem.type !== "hidden";
 463                 },
 464                 disabled: function(elem){
 465                         return elem.disabled === true;
 466                 },
 467                 checked: function(elem){
 468                         return elem.checked === true;
 469                 },
 470                 selected: function(elem){
 471                         // Accessing this property makes selected-by-default
 472                         // options in Safari work properly
 473                         elem.parentNode.selectedIndex;
 474                         return elem.selected === true;
 475                 },
 476                 parent: function(elem){
 477                         return !!elem.firstChild;
 478                 },
 479                 empty: function(elem){
 480                         return !elem.firstChild;
 481                 },
 482                 has: function(elem, i, match){
 483                         return !!Sizzle( match[3], elem ).length;
 484                 },
 485                 header: function(elem){
 486                         return /h\d/i.test( elem.nodeName );
 487                 },
 488                 text: function(elem){
 489                         return "text" === elem.type;
 490                 },
 491                 radio: function(elem){
 492                         return "radio" === elem.type;
 493                 },
 494                 checkbox: function(elem){
 495                         return "checkbox" === elem.type;
 496                 },
 497                 file: function(elem){
 498                         return "file" === elem.type;
 499                 },
 500                 password: function(elem){
 501                         return "password" === elem.type;
 502                 },
 503                 submit: function(elem){
 504                         return "submit" === elem.type;
 505                 },
 506                 image: function(elem){
 507                         return "image" === elem.type;
 508                 },
 509                 reset: function(elem){
 510                         return "reset" === elem.type;
 511                 },
 512                 button: function(elem){
 513                         return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
 514                 },
 515                 input: function(elem){
 516                         return /input|select|textarea|button/i.test(elem.nodeName);
 517                 }
 518         },
 519         setFilters: {
 520                 first: function(elem, i){
 521                         return i === 0;
 522                 },
 523                 last: function(elem, i, match, array){
 524                         return i === array.length - 1;
 525                 },
 526                 even: function(elem, i){
 527                         return i % 2 === 0;
 528                 },
 529                 odd: function(elem, i){
 530                         return i % 2 === 1;
 531                 },
 532                 lt: function(elem, i, match){
 533                         return i < match[3] - 0;
 534                 },
 535                 gt: function(elem, i, match){
 536                         return i > match[3] - 0;
 537                 },
 538                 nth: function(elem, i, match){
 539                         return match[3] - 0 == i;
 540                 },
 541                 eq: function(elem, i, match){
 542                         return match[3] - 0 == i;
 543                 }
 544         },
 545         filter: {
 546                 PSEUDO: function(elem, match, i, array){
 547                         var name = match[1], filter = Expr.filters[ name ];
 548
 549                         if ( filter ) {
 550                                 return filter( elem, i, match, array );
 551                         } else if ( name === "contains" ) {
 552                                 return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
 553                         } else if ( name === "not" ) {
 554                                 var not = match[3];
 555
 556                                 for ( var i = 0, l = not.length; i < l; i++ ) {
 557                                         if ( not[i] === elem ) {
 558                                                 return false;
 559                                         }
 560                                 }
 561
 562                                 return true;
 563                         }
 564                 },
 565                 CHILD: function(elem, match){
 566                         var type = match[1], node = elem;
 567                         switch (type) {
 568                                 case 'only':
 569                                 case 'first':
 570                                         while ( (node = node.previousSibling) )  {
 571                                                 if ( node.nodeType === 1 ) return false;
 572                                         }
 573                                         if ( type == 'first') return true;
 574                                         node = elem;
 575                                 case 'last':
 576                                         while ( (node = node.nextSibling) )  {
 577                                                 if ( node.nodeType === 1 ) return false;
 578                                         }
 579                                         return true;
 580                                 case 'nth':
 581                                         var first = match[2], last = match[3];
 582
 583                                         if ( first == 1 && last == 0 ) {
 584                                                 return true;
 585                                         }
 586
 587                                         var doneName = match[0],
 588                                                 parent = elem.parentNode;
 589
 590                                         if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
 591                                                 var count = 0;
 592                                                 for ( node = parent.firstChild; node; node = node.nextSibling ) {
 593                                                         if ( node.nodeType === 1 ) {
 594                                                                 node.nodeIndex = ++count;
 595                                                         }
 596                                                 }
 597                                                 parent.sizcache = doneName;
 598                                         }
 599
 600                                         var diff = elem.nodeIndex - last;
 601                                         if ( first == 0 ) {
 602                                                 return diff == 0;
 603                                         } else {
 604                                                 return ( diff % first == 0 && diff / first >= 0 );
 605                                         }
 606                         }
 607                 },
 608                 ID: function(elem, match){
 609                         return elem.nodeType === 1 && elem.getAttribute("id") === match;
 610                 },
 611                 TAG: function(elem, match){
 612                         return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
 613                 },
 614                 CLASS: function(elem, match){
 615                         return (" " + (elem.className || elem.getAttribute("class")) + " ")
 616                                 .indexOf( match ) > -1;
 617                 },
 618                 ATTR: function(elem, match){
 619                         var name = match[1],
 620                                 result = Expr.attrHandle[ name ] ?
 621                                         Expr.attrHandle[ name ]( elem ) :
 622                                         elem[ name ] != null ?
 623                                                 elem[ name ] :
 624                                                 elem.getAttribute( name ),
 625                                 value = result + "",
 626                                 type = match[2],
 627                                 check = match[4];
 628
 629                         return result == null ?
 630                                 type === "!=" :
 631                                 type === "=" ?
 632                                 value === check :
 633                                 type === "*=" ?
 634                                 value.indexOf(check) >= 0 :
 635                                 type === "~=" ?
 636                                 (" " + value + " ").indexOf(check) >= 0 :
 637                                 !check ?
 638                                 value && result !== false :
 639                                 type === "!=" ?
 640                                 value != check :
 641                                 type === "^=" ?
 642                                 value.indexOf(check) === 0 :
 643                                 type === "$=" ?
 644                                 value.substr(value.length - check.length) === check :
 645                                 type === "|=" ?
 646                                 value === check || value.substr(0, check.length + 1) === check + "-" :
 647                                 false;
 648                 },
 649                 POS: function(elem, match, i, array){
 650                         var name = match[2], filter = Expr.setFilters[ name ];
 651
 652                         if ( filter ) {
 653                                 return filter( elem, i, match, array );
 654                         }
 655                 }
 656         }
 657 };
 658
 659 var origPOS = Expr.match.POS;
 660
 661 for ( var type in Expr.match ) {
 662         Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
 663 }
 664
 665 var makeArray = function(array, results) {
 666         array = Array.prototype.slice.call( array, 0 );
 667
 668         if ( results ) {
 669                 results.push.apply( results, array );
 670                 return results;
 671         }
 672
 673         return array;
 674 };
 675
 676 // Perform a simple check to determine if the browser is capable of
 677 // converting a NodeList to an array using builtin methods.
 678 try {
 679         Array.prototype.slice.call( document.documentElement.childNodes, 0 );
 680
 681 // Provide a fallback method if it does not work
 682 } catch(e){
 683         makeArray = function(array, results) {
 684                 var ret = results || [];
 685
 686                 if ( toString.call(array) === "[object Array]" ) {
 687                         Array.prototype.push.apply( ret, array );
 688                 } else {
 689                         if ( typeof array.length === "number" ) {
 690                                 for ( var i = 0, l = array.length; i < l; i++ ) {
 691                                         ret.push( array[i] );
 692                                 }
 693                         } else {
 694                                 for ( var i = 0; array[i]; i++ ) {
 695                                         ret.push( array[i] );
 696                                 }
 697                         }
 698                 }
 699
 700                 return ret;
 701         };
 702 }
 703
 704 var sortOrder;
 705
 706 if ( document.documentElement.compareDocumentPosition ) {
 707         sortOrder = function( a, b ) {
 708                 if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
 709                         if ( a == b ) {
 710                                 hasDuplicate = true;
 711                         }
 712                         return 0;
 713                 }
 714
 715                 var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
 716                 if ( ret === 0 ) {
 717                         hasDuplicate = true;
 718                 }
 719                 return ret;
 720         };
 721 } else if ( "sourceIndex" in document.documentElement ) {
 722         sortOrder = function( a, b ) {
 723                 if ( !a.sourceIndex || !b.sourceIndex ) {
 724                         if ( a == b ) {
 725                                 hasDuplicate = true;
 726                         }
 727                         return 0;
 728                 }
 729
 730                 var ret = a.sourceIndex - b.sourceIndex;
 731                 if ( ret === 0 ) {
 732                         hasDuplicate = true;
 733                 }
 734                 return ret;
 735         };
 736 } else if ( document.createRange ) {
 737         sortOrder = function( a, b ) {
 738                 if ( !a.ownerDocument || !b.ownerDocument ) {
 739                         if ( a == b ) {
 740                                 hasDuplicate = true;
 741                         }
 742                         return 0;
 743                 }
 744
 745                 var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
 746                 aRange.selectNode(a);
 747                 aRange.collapse(true);
 748                 bRange.selectNode(b);
 749                 bRange.collapse(true);
 750                 var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
 751                 if ( ret === 0 ) {
 752                         hasDuplicate = true;
 753                 }
 754                 return ret;
 755         };
 756 }
 757
 758 // Check to see if the browser returns elements by name when
 759 // querying by getElementById (and provide a workaround)
 760 (function(){
 761         // We're going to inject a fake input element with a specified name
 762         var form = document.createElement("div"),
 763                 id = "script" + (new Date).getTime();
 764         form.innerHTML = "<a name='" + id + "'/>";
 765
 766         // Inject it into the root element, check its status, and remove it quickly
 767         var root = document.documentElement;
 768         root.insertBefore( form, root.firstChild );
 769
 770         // The workaround has to do additional checks after a getElementById
 771         // Which slows things down for other browsers (hence the branching)
 772         if ( !!document.getElementById( id ) ) {
 773                 Expr.find.ID = function(match, context, isXML){
 774                         if ( typeof context.getElementById !== "undefined" && !isXML ) {
 775                                 var m = context.getElementById(match[1]);
 776                                 return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
 777                         }
 778                 };
 779
 780                 Expr.filter.ID = function(elem, match){
 781                         var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
 782                         return elem.nodeType === 1 && node && node.nodeValue === match;
 783                 };
 784         }
 785
 786         root.removeChild( form );
 787         root = form = null; // release memory in IE
 788 })();
 789
 790 (function(){
 791         // Check to see if the browser returns only elements
 792         // when doing getElementsByTagName("*")
 793
 794         // Create a fake element
 795         var div = document.createElement("div");
 796         div.appendChild( document.createComment("") );
 797
 798         // Make sure no comments are found
 799         if ( div.getElementsByTagName("*").length > 0 ) {
 800                 Expr.find.TAG = function(match, context){
 801                         var results = context.getElementsByTagName(match[1]);
 802
 803                         // Filter out possible comments
 804                         if ( match[1] === "*" ) {
 805                                 var tmp = [];
 806
 807                                 for ( var i = 0; results[i]; i++ ) {
 808                                         if ( results[i].nodeType === 1 ) {
 809                                                 tmp.push( results[i] );
 810                                         }
 811                                 }
 812
 813                                 results = tmp;
 814                         }
 815
 816                         return results;
 817                 };
 818         }
 819
 820         // Check to see if an attribute returns normalized href attributes
 821         div.innerHTML = "<a href='#'></a>";
 822         if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
 823                         div.firstChild.getAttribute("href") !== "#" ) {
 824                 Expr.attrHandle.href = function(elem){
 825                         return elem.getAttribute("href", 2);
 826                 };
 827         }
 828
 829         div = null; // release memory in IE
 830 })();
 831
 832 if ( document.querySelectorAll ) (function(){
 833         var oldSizzle = Sizzle, div = document.createElement("div");
 834         div.innerHTML = "<p class='TEST'></p>";
 835
 836         // Safari can't handle uppercase or unicode characters when
 837         // in quirks mode.
 838         if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
 839                 return;
 840         }
 841
 842         Sizzle = function(query, context, extra, seed){
 843                 context = context || document;
 844
 845                 // Only use querySelectorAll on non-XML documents
 846                 // (ID selectors don't work in non-HTML documents)
 847                 if ( !seed && context.nodeType === 9 && !isXML(context) ) {
 848                         try {
 849                                 return makeArray( context.querySelectorAll(query), extra );
 850                         } catch(e){}
 851                 }
 852
 853                 return oldSizzle(query, context, extra, seed);
 854         };
 855
 856         for ( var prop in oldSizzle ) {
 857                 Sizzle[ prop ] = oldSizzle[ prop ];
 858         }
 859
 860         div = null; // release memory in IE
 861 })();
 862
 863 if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
 864         var div = document.createElement("div");
 865         div.innerHTML = "<div class='test e'></div><div class='test'></div>";
 866
 867         // Opera can't find a second classname (in 9.6)
 868         if ( div.getElementsByClassName("e").length === 0 )
 869                 return;
 870
 871         // Safari caches class attributes, doesn't catch changes (in 3.2)
 872         div.lastChild.className = "e";
 873
 874         if ( div.getElementsByClassName("e").length === 1 )
 875                 return;
 876
 877         Expr.order.splice(1, 0, "CLASS");
 878         Expr.find.CLASS = function(match, context, isXML) {
 879                 if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
 880                         return context.getElementsByClassName(match[1]);
 881                 }
 882         };
 883
 884         div = null; // release memory in IE
 885 })();
 886
 887 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 888         var sibDir = dir == "previousSibling" && !isXML;
 889         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 890                 var elem = checkSet[i];
 891                 if ( elem ) {
 892                         if ( sibDir && elem.nodeType === 1 ){
 893                                 elem.sizcache = doneName;
 894                                 elem.sizset = i;
 895                         }
 896                         elem = elem[dir];
 897                         var match = false;
 898
 899                         while ( elem ) {
 900                                 if ( elem.sizcache === doneName ) {
 901                                         match = checkSet[elem.sizset];
 902                                         break;
 903                                 }
 904
 905                                 if ( elem.nodeType === 1 && !isXML ){
 906                                         elem.sizcache = doneName;
 907                                         elem.sizset = i;
 908                                 }
 909
 910                                 if ( elem.nodeName === cur ) {
 911                                         match = elem;
 912                                         break;
 913                                 }
 914
 915                                 elem = elem[dir];
 916                         }
 917
 918                         checkSet[i] = match;
 919                 }
 920         }
 921 }
 922
 923 function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 924         var sibDir = dir == "previousSibling" && !isXML;
 925         for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 926                 var elem = checkSet[i];
 927                 if ( elem ) {
 928                         if ( sibDir && elem.nodeType === 1 ) {
 929                                 elem.sizcache = doneName;
 930                                 elem.sizset = i;
 931                         }
 932                         elem = elem[dir];
 933                         var match = false;
 934
 935                         while ( elem ) {
 936                                 if ( elem.sizcache === doneName ) {
 937                                         match = checkSet[elem.sizset];
 938                                         break;
 939                                 }
 940
 941                                 if ( elem.nodeType === 1 ) {
 942                                         if ( !isXML ) {
 943                                                 elem.sizcache = doneName;
 944                                                 elem.sizset = i;
 945                                         }
 946                                         if ( typeof cur !== "string" ) {
 947                                                 if ( elem === cur ) {
 948                                                         match = true;
 949                                                         break;
 950                                                 }
 951
 952                                         } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
 953                                                 match = elem;
 954                                                 break;
 955                                         }
 956                                 }
 957
 958                                 elem = elem[dir];
 959                         }
 960
 961                         checkSet[i] = match;
 962                 }
 963         }
 964 }
 965
 966 var contains = document.compareDocumentPosition ?  function(a, b){
 967         return a.compareDocumentPosition(b) & 16;
 968 } : function(a, b){
 969         return a !== b && (a.contains ? a.contains(b) : true);
 970 };
 971
 972 var isXML = function(elem){
 973         return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
 974                 !!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
 975 };
 976
 977 var posProcess = function(selector, context){
 978         var tmpSet = [], later = "", match,
 979                 root = context.nodeType ? [context] : context;
 980
 981         // Position selectors must be done after the filter
 982         // And so must :not(positional) so we move all PSEUDOs to the end
 983         while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
 984                 later += match[0];
 985                 selector = selector.replace( Expr.match.PSEUDO, "" );
 986         }
 987
 988         selector = Expr.relative[selector] ? selector + "*" : selector;
 989
 990         for ( var i = 0, l = root.length; i < l; i++ ) {
 991                 Sizzle( selector, root[i], tmpSet );
 992         }
 993
 994         return Sizzle.filter( later, tmpSet );
 995 };
 996
 997 // EXPOSE
 998 jQuery.find = Sizzle;
 999 jQuery.expr = Sizzle.selectors;
1000 jQuery.expr[":"] = jQuery.expr.filters;
1001 jQuery.unique = Sizzle.uniqueSort;
1002
1003 return;
1004
1005 window.Sizzle = Sizzle;
1006
1007 })();