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( 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[0] === true ) {
187 var last = null, elem;
188 for ( var i = 0; (elem = curLoop[i]) !== undefined; i++ ) {
189 if ( elem && last !== elem ) {
190 goodArray.push( elem );
198 for ( var i = 0; (item = curLoop[i]) !== undefined; i++ ) {
200 if ( goodArray && item != goodArray[goodPos] ) {
204 found = filter( item, match, goodPos, goodArray );
205 var pass = not ^ !!found;
207 if ( inplace && found != null ) {
221 if ( found !== undefined ) {
226 expr = expr.replace( Expr.match[ type ], "" );
237 expr = expr.replace(/\s*,\s*/, "");
239 // Improper expression
241 if ( anyFound == null ) {
242 throw "Syntax error, unrecognized expression: " + expr;
254 var Expr = Sizzle.selectors = {
255 order: [ "ID", "NAME", "TAG" ],
257 ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
258 CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
259 NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
260 ATTR: /\[((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\]/,
261 TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
262 CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
263 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
264 PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
267 "class": "className",
271 "+": function(checkSet, part){
272 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
273 var elem = checkSet[i];
275 var cur = elem.previousSibling;
276 while ( cur && cur.nodeType !== 1 ) {
277 cur = cur.previousSibling;
279 checkSet[i] = typeof part === "string" ?
285 if ( typeof part === "string" ) {
286 Sizzle.filter( part, checkSet, true );
289 ">": function(checkSet, part, isXML){
290 if ( typeof part === "string" && !/\W/.test(part) ) {
291 part = isXML ? part : part.toUpperCase();
293 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
294 var elem = checkSet[i];
296 var parent = elem.parentNode;
297 checkSet[i] = parent.nodeName === part ? parent : false;
301 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
302 var elem = checkSet[i];
304 checkSet[i] = typeof part === "string" ?
306 elem.parentNode === part;
310 if ( typeof part === "string" ) {
311 Sizzle.filter( part, checkSet, true );
315 "": function(checkSet, part, isXML){
316 var doneName = "done" + (done++), checkFn = dirCheck;
318 if ( !part.match(/\W/) ) {
319 var nodeCheck = part = isXML ? part : part.toUpperCase();
320 checkFn = dirNodeCheck;
323 checkFn("parentNode", part, doneName, checkSet, nodeCheck);
325 "~": function(checkSet, part, isXML){
326 var doneName = "done" + (done++), checkFn = dirCheck;
328 if ( typeof part === "string" && !part.match(/\W/) ) {
329 var nodeCheck = part = isXML ? part : part.toUpperCase();
330 checkFn = dirNodeCheck;
333 checkFn("previousSibling", part, doneName, checkSet, nodeCheck);
337 ID: function(match, context){
338 if ( context.getElementById ) {
339 var m = context.getElementById(match[1]);
343 NAME: function(match, context){
344 return context.getElementsByName ? context.getElementsByName(match[1]) : null;
346 TAG: function(match, context){
347 return context.getElementsByTagName(match[1]);
351 CLASS: function(match, curLoop, inplace, result, not){
352 match = " " + match[1].replace(/\\/g, "") + " ";
354 for ( var i = 0; curLoop[i]; i++ ) {
355 if ( not ^ (" " + curLoop[i].className + " ").indexOf(match) >= 0 ) {
357 result.push( curLoop[i] );
358 } else if ( inplace ) {
366 return match[1].replace(/\\/g, "");
368 TAG: function(match, curLoop){
369 for ( var i = 0; !curLoop[i]; i++ ){}
370 return isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
372 CHILD: function(match){
373 if ( match[1] == "nth" ) {
374 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
375 var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
376 match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
377 !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
379 // calculate the numbers (first)n+(last) including if they are negative
380 match[2] = (test[1] + (test[2] || 1)) - 0;
381 match[3] = test[3] - 0;
384 // TODO: Move to normal caching system
385 match[0] = "done" + (done++);
389 ATTR: function(match){
392 if ( Expr.attrMap[name] ) {
393 match[1] = Expr.attrMap[name];
396 if ( match[2] === "~=" ) {
397 match[4] = " " + match[4] + " ";
402 PSEUDO: function(match, curLoop, inplace, result, not){
403 if ( match[1] === "not" ) {
404 // If we're dealing with a complex expression, or a simple one
405 if ( match[3].match(chunker).length > 1 ) {
406 match[3] = Sizzle(match[3], null, null, curLoop);
408 var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
410 result.push.apply( result, ret );
418 POS: function(match){
419 match.unshift( true );
424 enabled: function(elem){
425 return elem.disabled === false && elem.type !== "hidden";
427 disabled: function(elem){
428 return elem.disabled === true;
430 checked: function(elem){
431 return elem.checked === true;
433 selected: function(elem){
434 // Accessing this property makes selected-by-default
435 // options in Safari work properly
436 elem.parentNode.selectedIndex;
437 return elem.selected === true;
439 parent: function(elem){
440 return !!elem.firstChild;
442 empty: function(elem){
443 return !elem.firstChild;
445 has: function(elem, i, match){
446 return !!Sizzle( match[3], elem ).length;
448 header: function(elem){
449 return /h\d/i.test( elem.nodeName );
451 text: function(elem){
452 return "text" === elem.type;
454 radio: function(elem){
455 return "radio" === elem.type;
457 checkbox: function(elem){
458 return "checkbox" === elem.type;
460 file: function(elem){
461 return "file" === elem.type;
463 password: function(elem){
464 return "password" === elem.type;
466 submit: function(elem){
467 return "submit" === elem.type;
469 image: function(elem){
470 return "image" === elem.type;
472 reset: function(elem){
473 return "reset" === elem.type;
475 button: function(elem){
476 return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
478 input: function(elem){
479 return /input|select|textarea|button/i.test(elem.nodeName);
483 first: function(elem, i){
486 last: function(elem, i, match, array){
487 return i === array.length - 1;
489 even: function(elem, i){
492 odd: function(elem, i){
495 lt: function(elem, i, match){
496 return i < match[3] - 0;
498 gt: function(elem, i, match){
499 return i > match[3] - 0;
501 nth: function(elem, i, match){
502 return match[3] - 0 == i;
504 eq: function(elem, i, match){
505 return match[3] - 0 == i;
509 CHILD: function(elem, match){
510 var type = match[1], parent = elem.parentNode;
512 var doneName = match[0];
514 if ( parent && !parent[ doneName ] ) {
517 for ( var node = parent.firstChild; node; node = node.nextSibling ) {
518 if ( node.nodeType == 1 ) {
519 node.nodeIndex = count++;
523 parent[ doneName ] = count - 1;
526 if ( type == "first" ) {
527 return elem.nodeIndex == 1;
528 } else if ( type == "last" ) {
529 return elem.nodeIndex == parent[ doneName ];
530 } else if ( type == "only" ) {
531 return parent[ doneName ] == 1;
532 } else if ( type == "nth" ) {
533 var add = false, first = match[2], last = match[3];
535 if ( first == 1 && last == 0 ) {
540 if ( elem.nodeIndex == last ) {
543 } else if ( (elem.nodeIndex - last) % first == 0 && (elem.nodeIndex - last) / first >= 0 ) {
550 PSEUDO: function(elem, match, i, array){
551 var name = match[1], filter = Expr.filters[ name ];
554 return filter( elem, i, match, array );
555 } else if ( name === "contains" ) {
556 return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
557 } else if ( name === "not" ) {
560 for ( var i = 0, l = not.length; i < l; i++ ) {
561 if ( not[i] === elem ) {
569 ID: function(elem, match){
570 return elem.nodeType === 1 && elem.getAttribute("id") === match;
572 TAG: function(elem, match){
573 return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
575 CLASS: function(elem, match){
576 return match.test( elem.className );
578 ATTR: function(elem, match){
579 var result = elem[ match[1] ] || elem.getAttribute( match[1] ), value = result + "", type = match[2], check = match[4];
580 return result == null ?
585 value.indexOf(check) >= 0 :
587 (" " + value + " ").indexOf(check) >= 0 :
593 value.indexOf(check) === 0 :
595 value.substr(value.length - check.length) === check :
597 value === check || value.substr(0, check.length + 1) === check + "-" :
600 POS: function(elem, match, i, array){
601 var name = match[2], filter = Expr.setFilters[ name ];
604 return filter( elem, i, match, array );
610 for ( var type in Expr.match ) {
611 Expr.match[ type ] = RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
614 var makeArray = function(array, results) {
615 array = Array.prototype.slice.call( array );
618 results.push.apply( results, array );
625 // Perform a simple check to determine if the browser is capable of
626 // converting a NodeList to an array using builtin methods.
628 Array.prototype.slice.call( document.documentElement.childNodes );
630 // Provide a fallback method if it does not work
632 makeArray = function(array, results) {
633 var ret = results || [];
635 if ( toString.call(array) === "[object Array]" ) {
636 Array.prototype.push.apply( ret, array );
638 if ( typeof array.length === "number" ) {
639 for ( var i = 0, l = array.length; i < l; i++ ) {
640 ret.push( array[i] );
643 for ( var i = 0; array[i]; i++ ) {
644 ret.push( array[i] );
653 // Check to see if the browser returns elements by name when
654 // querying by getElementById (and provide a workaround)
656 // We're going to inject a fake input element with a specified name
657 var form = document.createElement("form"),
658 id = "script" + (new Date).getTime();
659 form.innerHTML = "<input name='" + id + "'/>";
661 // Inject it into the root element, check its status, and remove it quickly
662 var root = document.documentElement;
663 root.insertBefore( form, root.firstChild );
665 // The workaround has to do additional checks after a getElementById
666 // Which slows things down for other browsers (hence the branching)
667 if ( !!document.getElementById( id ) ) {
668 Expr.find.ID = function(match, context){
669 if ( context.getElementById ) {
670 var m = context.getElementById(match[1]);
671 return m ? m.id === match[1] || m.getAttributeNode && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
675 Expr.filter.ID = function(elem, match){
676 var node = elem.getAttributeNode && elem.getAttributeNode("id");
677 return elem.nodeType === 1 && node && node.nodeValue === match;
681 root.removeChild( form );
684 // Check to see if the browser returns only elements
685 // when doing getElementsByTagName("*")
687 // Create a fake element
688 var div = document.createElement("div");
689 div.appendChild( document.createComment("") );
691 // Make sure no comments are found
692 if ( div.getElementsByTagName("*").length > 0 ) {
693 Expr.find.TAG = function(match, context){
694 var results = context.getElementsByTagName(match[1]);
696 // Filter out possible comments
697 if ( match[1] === "*" ) {
700 for ( var i = 0; results[i]; i++ ) {
701 if ( results[i].nodeType === 1 ) {
702 tmp.push( results[i] );
714 if ( document.querySelectorAll ) (function(){
715 var oldSizzle = Sizzle;
717 Sizzle = function(query, context, extra, seed){
718 context = context || document;
720 if ( !seed && context.nodeType === 9 ) {
722 return makeArray( context.querySelectorAll(query), extra );
726 return oldSizzle(query, context, extra, seed);
729 Sizzle.find = oldSizzle.find;
730 Sizzle.filter = oldSizzle.filter;
731 Sizzle.selectors = oldSizzle.selectors;
732 Sizzle.matches = oldSizzle.matches;
735 if ( document.documentElement.getElementsByClassName ) {
736 Expr.order.splice(1, 0, "CLASS");
737 Expr.find.CLASS = function(match, context) {
738 return context.getElementsByClassName(match[1]);
742 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck ) {
743 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
744 var elem = checkSet[i];
749 while ( elem && elem.nodeType ) {
750 var done = elem[doneName];
752 match = checkSet[ done ];
756 if ( elem.nodeType === 1 )
759 if ( elem.nodeName === cur ) {
772 function dirCheck( dir, cur, doneName, checkSet, nodeCheck ) {
773 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
774 var elem = checkSet[i];
779 while ( elem && elem.nodeType ) {
780 if ( elem[doneName] ) {
781 match = checkSet[ elem[doneName] ];
785 if ( elem.nodeType === 1 ) {
788 if ( typeof cur !== "string" ) {
789 if ( elem === cur ) {
794 } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
808 var contains = document.compareDocumentPosition ? function(a, b){
809 return a.compareDocumentPosition(b) & 16;
811 return a !== b && (a.contains ? a.contains(b) : true);
814 var isXML = function(elem){
815 return elem.documentElement && !elem.body ||
816 elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
820 jQuery.find = Sizzle;
821 jQuery.filter = Sizzle.filter;
822 jQuery.expr = Sizzle.selectors;
823 jQuery.expr[":"] = jQuery.expr.filters;
825 Sizzle.selectors.filters.hidden = function(elem){
826 return "hidden" === elem.type ||
827 jQuery.css(elem, "display") === "none" ||
828 jQuery.css(elem, "visibility") === "hidden";
831 Sizzle.selectors.filters.visible = function(elem){
832 return "hidden" !== elem.type &&
833 jQuery.css(elem, "display") !== "none" &&
834 jQuery.css(elem, "visibility") !== "hidden";
837 Sizzle.selectors.filters.animated = function(elem){
838 return jQuery.grep(jQuery.timers, function(fn){
839 return elem === fn.elem;
843 jQuery.multiFilter = function( expr, elems, not ) {
845 expr = ":not(" + expr + ")";
848 return Sizzle.matches(expr, elems);
851 jQuery.dir = function( elem, dir ){
852 var matched = [], cur = elem[dir];
853 while ( cur && cur != document ) {
854 if ( cur.nodeType == 1 )
861 jQuery.nth = function(cur, result, dir, elem){
862 result = result || 1;
865 for ( ; cur; cur = cur[dir] )
866 if ( cur.nodeType == 1 && ++num == result )
872 jQuery.sibling = function(n, elem){
875 for ( ; n; n = n.nextSibling ) {
876 if ( n.nodeType == 1 && n != elem )
885 window.Sizzle = Sizzle;