2 * Sizzle CSS Selector Engine - v0.9.1
3 * Copyright 2009, The Dojo Foundation
4 * Released under the MIT, BSD, and GPL Licenses.
5 * More information: http://sizzlejs.com/
9 var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|[^[\]]+)+\]|\\.|[^ >+~,(\[]+)+|[>+~])(\s*,\s*)?/g,
11 toString = Object.prototype.toString;
13 var Sizzle = function(selector, context, results, seed) {
14 results = results || [];
15 context = context || document;
17 if ( context.nodeType !== 1 && context.nodeType !== 9 )
20 if ( !selector || typeof selector !== "string" ) {
24 var parts = [], m, set, checkSet, check, mode, extra, prune = true;
26 // Reset the position of the chunker regexp (start from head)
27 chunker.lastIndex = 0;
29 while ( (m = chunker.exec(selector)) !== null ) {
33 extra = RegExp.rightContext;
38 if ( parts.length > 1 && Expr.match.POS.exec( selector ) ) {
39 if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
40 var later = "", match;
42 // Position selectors must be done after the filter
43 while ( (match = Expr.match.POS.exec( selector )) ) {
45 selector = selector.replace( Expr.match.POS, "" );
48 set = Sizzle.filter( later, Sizzle( /\s$/.test(selector) ? selector + "*" : selector, context ) );
50 set = Expr.relative[ parts[0] ] ?
52 Sizzle( parts.shift(), context );
54 while ( parts.length ) {
57 selector = parts.shift();
58 if ( Expr.relative[ selector ] )
59 selector += parts.shift();
61 for ( var i = 0, l = set.length; i < l; i++ ) {
62 Sizzle( selector, set[i], tmpSet );
70 { expr: parts.pop(), set: makeArray(seed) } :
71 Sizzle.find( parts.pop(), parts.length === 1 && context.parentNode ? context.parentNode : context );
72 set = Sizzle.filter( ret.expr, ret.set );
74 if ( parts.length > 0 ) {
75 checkSet = makeArray(set);
80 while ( parts.length ) {
81 var cur = parts.pop(), pop = cur;
83 if ( !Expr.relative[ cur ] ) {
93 Expr.relative[ cur ]( checkSet, pop, isXML(context) );
102 throw "Syntax error, unrecognized expression: " + (cur || selector);
105 if ( toString.call(checkSet) === "[object Array]" ) {
107 results.push.apply( results, checkSet );
108 } else if ( context.nodeType === 1 ) {
109 for ( var i = 0; checkSet[i] != null; i++ ) {
110 if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
111 results.push( set[i] );
115 for ( var i = 0; checkSet[i] != null; i++ ) {
116 if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
117 results.push( set[i] );
122 makeArray( checkSet, results );
126 Sizzle( extra, context, results, seed );
132 Sizzle.matches = function(expr, set){
133 return Sizzle(expr, null, null, set);
136 Sizzle.find = function(expr, context){
143 for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
144 var type = Expr.order[i], match;
146 if ( (match = Expr.match[ type ].exec( expr )) ) {
147 var left = RegExp.leftContext;
149 if ( left.substr( left.length - 1 ) !== "\\" ) {
150 match[1] = (match[1] || "").replace(/\\/g, "");
151 set = Expr.find[ type ]( match, context );
153 expr = expr.replace( Expr.match[ type ], "" );
161 set = context.getElementsByTagName("*");
164 return {set: set, expr: expr};
167 Sizzle.filter = function(expr, set, inplace, not){
168 var old = expr, result = [], curLoop = set, match, anyFound;
170 while ( expr && set.length ) {
171 for ( var type in Expr.filter ) {
172 if ( (match = Expr.match[ type ].exec( expr )) != null ) {
173 var filter = Expr.filter[ type ], goodArray = null, goodPos = 0, found, item;
176 if ( curLoop == result ) {
180 if ( Expr.preFilter[ type ] ) {
181 match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not );
184 anyFound = found = true;
185 } else if ( match === true ) {
187 } else if ( match[0] === true ) {
189 var last = null, elem;
190 for ( var i = 0; (elem = curLoop[i]) !== undefined; i++ ) {
191 if ( elem && last !== elem ) {
192 goodArray.push( elem );
200 for ( var i = 0; (item = curLoop[i]) !== undefined; i++ ) {
202 if ( goodArray && item != goodArray[goodPos] ) {
206 found = filter( item, match, goodPos, goodArray );
207 var pass = not ^ !!found;
209 if ( inplace && found != null ) {
223 if ( found !== undefined ) {
228 expr = expr.replace( Expr.match[ type ], "" );
239 expr = expr.replace(/\s*,\s*/, "");
241 // Improper expression
243 if ( anyFound == null ) {
244 throw "Syntax error, unrecognized expression: " + expr;
256 var Expr = Sizzle.selectors = {
257 order: [ "ID", "NAME", "TAG" ],
259 ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
260 CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
261 NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
262 ATTR: /\[\s*((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
263 TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
264 CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
265 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
266 PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
269 "class": "className",
273 href: function(elem){
274 return elem.getAttribute("href");
278 "+": function(checkSet, part){
279 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
280 var elem = checkSet[i];
282 var cur = elem.previousSibling;
283 while ( cur && cur.nodeType !== 1 ) {
284 cur = cur.previousSibling;
286 checkSet[i] = typeof part === "string" ?
292 if ( typeof part === "string" ) {
293 Sizzle.filter( part, checkSet, true );
296 ">": function(checkSet, part, isXML){
297 if ( typeof part === "string" && !/\W/.test(part) ) {
298 part = isXML ? part : part.toUpperCase();
300 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
301 var elem = checkSet[i];
303 var parent = elem.parentNode;
304 checkSet[i] = parent.nodeName === part ? parent : false;
308 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
309 var elem = checkSet[i];
311 checkSet[i] = typeof part === "string" ?
313 elem.parentNode === part;
317 if ( typeof part === "string" ) {
318 Sizzle.filter( part, checkSet, true );
322 "": function(checkSet, part, isXML){
323 var doneName = "done" + (done++), checkFn = dirCheck;
325 if ( !part.match(/\W/) ) {
326 var nodeCheck = part = isXML ? part : part.toUpperCase();
327 checkFn = dirNodeCheck;
330 checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
332 "~": function(checkSet, part, isXML){
333 var doneName = "done" + (done++), checkFn = dirCheck;
335 if ( typeof part === "string" && !part.match(/\W/) ) {
336 var nodeCheck = part = isXML ? part : part.toUpperCase();
337 checkFn = dirNodeCheck;
340 checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
344 ID: function(match, context){
345 if ( context.getElementById ) {
346 var m = context.getElementById(match[1]);
350 NAME: function(match, context){
351 return context.getElementsByName ? context.getElementsByName(match[1]) : null;
353 TAG: function(match, context){
354 return context.getElementsByTagName(match[1]);
358 CLASS: function(match, curLoop, inplace, result, not){
359 match = " " + match[1].replace(/\\/g, "") + " ";
361 for ( var i = 0; curLoop[i]; i++ ) {
362 if ( not ^ (" " + curLoop[i].className + " ").indexOf(match) >= 0 ) {
364 result.push( curLoop[i] );
365 } else if ( inplace ) {
373 return match[1].replace(/\\/g, "");
375 TAG: function(match, curLoop){
376 for ( var i = 0; !curLoop[i]; i++ ){}
377 return isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
379 CHILD: function(match){
380 if ( match[1] == "nth" ) {
381 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
382 var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
383 match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
384 !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
386 // calculate the numbers (first)n+(last) including if they are negative
387 match[2] = (test[1] + (test[2] || 1)) - 0;
388 match[3] = test[3] - 0;
391 // TODO: Move to normal caching system
392 match[0] = "done" + (done++);
396 ATTR: function(match){
399 if ( Expr.attrMap[name] ) {
400 match[1] = Expr.attrMap[name];
403 if ( match[2] === "~=" ) {
404 match[4] = " " + match[4] + " ";
409 PSEUDO: function(match, curLoop, inplace, result, not){
410 if ( match[1] === "not" ) {
411 // If we're dealing with a complex expression, or a simple one
412 if ( match[3].match(chunker).length > 1 ) {
413 match[3] = Sizzle(match[3], null, null, curLoop);
415 var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
417 result.push.apply( result, ret );
421 } else if ( Expr.match.POS.test( match[0] ) ) {
427 POS: function(match){
428 match.unshift( true );
433 enabled: function(elem){
434 return elem.disabled === false && elem.type !== "hidden";
436 disabled: function(elem){
437 return elem.disabled === true;
439 checked: function(elem){
440 return elem.checked === true;
442 selected: function(elem){
443 // Accessing this property makes selected-by-default
444 // options in Safari work properly
445 elem.parentNode.selectedIndex;
446 return elem.selected === true;
448 parent: function(elem){
449 return !!elem.firstChild;
451 empty: function(elem){
452 return !elem.firstChild;
454 has: function(elem, i, match){
455 return !!Sizzle( match[3], elem ).length;
457 header: function(elem){
458 return /h\d/i.test( elem.nodeName );
460 text: function(elem){
461 return "text" === elem.type;
463 radio: function(elem){
464 return "radio" === elem.type;
466 checkbox: function(elem){
467 return "checkbox" === elem.type;
469 file: function(elem){
470 return "file" === elem.type;
472 password: function(elem){
473 return "password" === elem.type;
475 submit: function(elem){
476 return "submit" === elem.type;
478 image: function(elem){
479 return "image" === elem.type;
481 reset: function(elem){
482 return "reset" === elem.type;
484 button: function(elem){
485 return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
487 input: function(elem){
488 return /input|select|textarea|button/i.test(elem.nodeName);
492 first: function(elem, i){
495 last: function(elem, i, match, array){
496 return i === array.length - 1;
498 even: function(elem, i){
501 odd: function(elem, i){
504 lt: function(elem, i, match){
505 return i < match[3] - 0;
507 gt: function(elem, i, match){
508 return i > match[3] - 0;
510 nth: function(elem, i, match){
511 return match[3] - 0 == i;
513 eq: function(elem, i, match){
514 return match[3] - 0 == i;
518 CHILD: function(elem, match){
519 var type = match[1], parent = elem.parentNode;
521 var doneName = "child" + parent.childNodes.length;
523 if ( parent && (!parent[ doneName ] || !elem.nodeIndex) ) {
526 for ( var node = parent.firstChild; node; node = node.nextSibling ) {
527 if ( node.nodeType == 1 ) {
528 node.nodeIndex = count++;
532 parent[ doneName ] = count - 1;
535 if ( type == "first" ) {
536 return elem.nodeIndex == 1;
537 } else if ( type == "last" ) {
538 return elem.nodeIndex == parent[ doneName ];
539 } else if ( type == "only" ) {
540 return parent[ doneName ] == 1;
541 } else if ( type == "nth" ) {
542 var add = false, first = match[2], last = match[3];
544 if ( first == 1 && last == 0 ) {
549 if ( elem.nodeIndex == last ) {
552 } else if ( (elem.nodeIndex - last) % first == 0 && (elem.nodeIndex - last) / first >= 0 ) {
559 PSEUDO: function(elem, match, i, array){
560 var name = match[1], filter = Expr.filters[ name ];
563 return filter( elem, i, match, array );
564 } else if ( name === "contains" ) {
565 return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
566 } else if ( name === "not" ) {
569 for ( var i = 0, l = not.length; i < l; i++ ) {
570 if ( not[i] === elem ) {
578 ID: function(elem, match){
579 return elem.nodeType === 1 && elem.getAttribute("id") === match;
581 TAG: function(elem, match){
582 return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
584 CLASS: function(elem, match){
585 return match.test( elem.className );
587 ATTR: function(elem, match){
588 var result = Expr.attrHandle[ match[1] ] ? Expr.attrHandle[ match[1] ]( elem ) : elem[ match[1] ] || elem.getAttribute( match[1] ), value = result + "", type = match[2], check = match[4];
589 return result == null ?
594 value.indexOf(check) >= 0 :
596 (" " + value + " ").indexOf(check) >= 0 :
602 value.indexOf(check) === 0 :
604 value.substr(value.length - check.length) === check :
606 value === check || value.substr(0, check.length + 1) === check + "-" :
609 POS: function(elem, match, i, array){
610 var name = match[2], filter = Expr.setFilters[ name ];
613 return filter( elem, i, match, array );
619 for ( var type in Expr.match ) {
620 Expr.match[ type ] = RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
623 var makeArray = function(array, results) {
624 array = Array.prototype.slice.call( array );
627 results.push.apply( results, array );
634 // Perform a simple check to determine if the browser is capable of
635 // converting a NodeList to an array using builtin methods.
637 Array.prototype.slice.call( document.documentElement.childNodes );
639 // Provide a fallback method if it does not work
641 makeArray = function(array, results) {
642 var ret = results || [];
644 if ( toString.call(array) === "[object Array]" ) {
645 Array.prototype.push.apply( ret, array );
647 if ( typeof array.length === "number" ) {
648 for ( var i = 0, l = array.length; i < l; i++ ) {
649 ret.push( array[i] );
652 for ( var i = 0; array[i]; i++ ) {
653 ret.push( array[i] );
662 // Check to see if the browser returns elements by name when
663 // querying by getElementById (and provide a workaround)
665 // We're going to inject a fake input element with a specified name
666 var form = document.createElement("form"),
667 id = "script" + (new Date).getTime();
668 form.innerHTML = "<input name='" + id + "'/>";
670 // Inject it into the root element, check its status, and remove it quickly
671 var root = document.documentElement;
672 root.insertBefore( form, root.firstChild );
674 // The workaround has to do additional checks after a getElementById
675 // Which slows things down for other browsers (hence the branching)
676 if ( !!document.getElementById( id ) ) {
677 Expr.find.ID = function(match, context){
678 if ( context.getElementById ) {
679 var m = context.getElementById(match[1]);
680 return m ? m.id === match[1] || m.getAttributeNode && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
684 Expr.filter.ID = function(elem, match){
685 var node = elem.getAttributeNode && elem.getAttributeNode("id");
686 return elem.nodeType === 1 && node && node.nodeValue === match;
690 root.removeChild( form );
694 // Check to see if the browser returns only elements
695 // when doing getElementsByTagName("*")
697 // Create a fake element
698 var div = document.createElement("div");
699 div.appendChild( document.createComment("") );
701 // Make sure no comments are found
702 if ( div.getElementsByTagName("*").length > 0 ) {
703 Expr.find.TAG = function(match, context){
704 var results = context.getElementsByTagName(match[1]);
706 // Filter out possible comments
707 if ( match[1] === "*" ) {
710 for ( var i = 0; results[i]; i++ ) {
711 if ( results[i].nodeType === 1 ) {
712 tmp.push( results[i] );
723 // Check to see if an attribute returns normalized href attributes
724 div.innerHTML = "<a href='#'></a>";
725 if ( div.firstChild.getAttribute("href") !== "#" ) {
726 Expr.attrHandle.href = function(elem){
727 return elem.getAttribute("href", 2);
732 if ( document.querySelectorAll ) (function(){
733 var oldSizzle = Sizzle;
735 Sizzle = function(query, context, extra, seed){
736 context = context || document;
738 if ( !seed && context.nodeType === 9 ) {
740 return makeArray( context.querySelectorAll(query), extra );
744 return oldSizzle(query, context, extra, seed);
747 Sizzle.find = oldSizzle.find;
748 Sizzle.filter = oldSizzle.filter;
749 Sizzle.selectors = oldSizzle.selectors;
750 Sizzle.matches = oldSizzle.matches;
753 if ( document.documentElement.getElementsByClassName ) {
754 Expr.order.splice(1, 0, "CLASS");
755 Expr.find.CLASS = function(match, context) {
756 return context.getElementsByClassName(match[1]);
760 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
761 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
762 var elem = checkSet[i];
767 while ( elem && elem.nodeType ) {
768 var done = elem[doneName];
770 match = checkSet[ done ];
774 if ( elem.nodeType === 1 && !isXML )
777 if ( elem.nodeName === cur ) {
790 function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
791 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
792 var elem = checkSet[i];
797 while ( elem && elem.nodeType ) {
798 if ( elem[doneName] ) {
799 match = checkSet[ elem[doneName] ];
803 if ( elem.nodeType === 1 ) {
807 if ( typeof cur !== "string" ) {
808 if ( elem === cur ) {
813 } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
827 var contains = document.compareDocumentPosition ? function(a, b){
828 return a.compareDocumentPosition(b) & 16;
830 return a !== b && (a.contains ? a.contains(b) : true);
833 var isXML = function(elem){
834 return elem.documentElement && !elem.body ||
835 elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
839 jQuery.find = Sizzle;
840 jQuery.filter = Sizzle.filter;
841 jQuery.expr = Sizzle.selectors;
842 jQuery.expr[":"] = jQuery.expr.filters;
844 Sizzle.selectors.filters.hidden = function(elem){
845 return "hidden" === elem.type ||
846 jQuery.css(elem, "display") === "none" ||
847 jQuery.css(elem, "visibility") === "hidden";
850 Sizzle.selectors.filters.visible = function(elem){
851 return "hidden" !== elem.type &&
852 jQuery.css(elem, "display") !== "none" &&
853 jQuery.css(elem, "visibility") !== "hidden";
856 Sizzle.selectors.filters.animated = function(elem){
857 return jQuery.grep(jQuery.timers, function(fn){
858 return elem === fn.elem;
862 jQuery.multiFilter = function( expr, elems, not ) {
864 expr = ":not(" + expr + ")";
867 return Sizzle.matches(expr, elems);
870 jQuery.dir = function( elem, dir ){
871 var matched = [], cur = elem[dir];
872 while ( cur && cur != document ) {
873 if ( cur.nodeType == 1 )
880 jQuery.nth = function(cur, result, dir, elem){
881 result = result || 1;
884 for ( ; cur; cur = cur[dir] )
885 if ( cur.nodeType == 1 && ++num == result )
891 jQuery.sibling = function(n, elem){
894 for ( ; n; n = n.nextSibling ) {
895 if ( n.nodeType == 1 && n != elem )
904 window.Sizzle = Sizzle;