Moved a bunch of methods out of the jQuery-specific Sizzle code into more-appropriate...
[jquery.git] / src / selector.js
index 6e916a2..6291d86 100644 (file)
+/*!
+ * Sizzle CSS Selector Engine - v1.0
+ *  Copyright 2009, The Dojo Foundation
+ *  Released under the MIT, BSD, and GPL Licenses.
+ *  More information: http://sizzlejs.com/
+ */
+(function(){
+
+var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?/g,
+       done = 0,
+       toString = Object.prototype.toString,
+       hasDuplicate = false;
+
+var Sizzle = function(selector, context, results, seed) {
+       results = results || [];
+       var origContext = context = context || document;
+
+       if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
+               return [];
+       }
+       
+       if ( !selector || typeof selector !== "string" ) {
+               return results;
+       }
 
-var chars = jQuery.browser.safari && parseInt(jQuery.browser.version) < 417 ?
-               "(?:[\\w*_-]|\\\\.)" :
-               "(?:[\\w\u0128-\uFFFF*_-]|\\\\.)",
-       quickChild = new RegExp("^>\\s*(" + chars + "+)"),
-       quickID = new RegExp("^(" + chars + "+)(#)(" + chars + "+)"),
-       quickClass = new RegExp("^([#.]?)(" + chars + "*)");
-
-jQuery.extend({
-       expr: {
-               "": "m[2]=='*'||jQuery.nodeName(a,m[2])",
-               "#": "a.getAttribute('id')==m[2]",
-               ":": {
-                       // Position Checks
-                       lt: "i<m[3]-0",
-                       gt: "i>m[3]-0",
-                       nth: "m[3]-0==i",
-                       eq: "m[3]-0==i",
-                       first: "i==0",
-                       last: "i==r.length-1",
-                       even: "i%2==0",
-                       odd: "i%2",
-
-                       // Child Checks
-                       "first-child": "a.parentNode.getElementsByTagName('*')[0]==a",
-                       "last-child": "jQuery.nth(a.parentNode.lastChild,1,'previousSibling')==a",
-                       "only-child": "!jQuery.nth(a.parentNode.lastChild,2,'previousSibling')",
-
-                       // Parent Checks
-                       parent: "a.firstChild",
-                       empty: "!a.firstChild",
-
-                       // Text Check
-                       contains: "(a.textContent||a.innerText||jQuery(a).text()||'').indexOf(m[3])>=0",
-
-                       // Visibility
-                       visible: '"hidden"!=a.type&&jQuery.css(a,"display")!="none"&&jQuery.css(a,"visibility")!="hidden"',
-                       hidden: '"hidden"==a.type||jQuery.css(a,"display")=="none"||jQuery.css(a,"visibility")=="hidden"',
-
-                       // Form attributes
-                       enabled: "!a.disabled",
-                       disabled: "a.disabled",
-                       checked: "a.checked",
-                       selected: "a.selected||jQuery.attr(a,'selected')",
-
-                       // Form elements
-                       text: "'text'==a.type",
-                       radio: "'radio'==a.type",
-                       checkbox: "'checkbox'==a.type",
-                       file: "'file'==a.type",
-                       password: "'password'==a.type",
-                       submit: "'submit'==a.type",
-                       image: "'image'==a.type",
-                       reset: "'reset'==a.type",
-                       button: '"button"==a.type||jQuery.nodeName(a,"button")',
-                       input: "/input|select|textarea|button/i.test(a.nodeName)",
-
-                       // :has()
-                       has: "jQuery.find(m[3],a).length",
-
-                       // :header
-                       header: "/h\\d/i.test(a.nodeName)",
-
-                       // :animated
-                       animated: "jQuery.grep(jQuery.timers,function(fn){return a==fn.elem;}).length"
-               }
-       },
+       var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context);
+       
+       // Reset the position of the chunker regexp (start from head)
+       chunker.lastIndex = 0;
        
-       // The regular expressions that power the parsing engine
-       parse: [
-               // Match: [@value='test'], [@foo]
-               /^(\[) *@?([\w-]+) *([!*$^~=]*) *('?"?)(.*?)\4 *\]/,
-
-               // Match: :contains('foo')
-               /^(:)([\w-]+)\("?'?(.*?(\(.*?\))?[^(]*?)"?'?\)/,
-
-               // Match: :even, :last-chlid, #id, .class
-               new RegExp("^([:.#]*)(" + chars + "+)")
-       ],
-
-       multiFilter: function( expr, elems, not ) {
-               var old, cur = [];
-
-               while ( expr && expr != old ) {
-                       old = expr;
-                       var f = jQuery.filter( expr, elems, not );
-                       expr = f.t.replace(/^\s*,\s*/, "" );
-                       cur = not ? elems = f.r : jQuery.merge( cur, f.r );
+       while ( (m = chunker.exec(selector)) !== null ) {
+               parts.push( m[1] );
+               
+               if ( m[2] ) {
+                       extra = RegExp.rightContext;
+                       break;
                }
+       }
 
-               return cur;
-       },
-
-       find: function( t, context ) {
-               // Quickly handle non-string expressions
-               if ( typeof t != "string" )
-                       return [ t ];
+       if ( parts.length > 1 && origPOS.exec( selector ) ) {
+               if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
+                       set = posProcess( parts[0] + parts[1], context );
+               } else {
+                       set = Expr.relative[ parts[0] ] ?
+                               [ context ] :
+                               Sizzle( parts.shift(), context );
 
-               // check to make sure context is a DOM element or a document
-               if ( context && context.nodeType != 1 && context.nodeType != 9)
-                       return [ ];
+                       while ( parts.length ) {
+                               selector = parts.shift();
 
-               // Set the correct context (if none is provided)
-               context = context || document;
+                               if ( Expr.relative[ selector ] )
+                                       selector += parts.shift();
 
-               // Initialize the search
-               var ret = [context], done = [], last, nodeName;
+                               set = posProcess( selector, set );
+                       }
+               }
+       } else {
+               // Take a shortcut and set the context if the root selector is an ID
+               // (but not if it'll be faster if the inner selector is an ID)
+               if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
+                               Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
+                       var ret = Sizzle.find( parts.shift(), context, contextXML );
+                       context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
+               }
 
-               // Continue while a selector expression exists, and while
-               // we're no longer looping upon ourselves
-               while ( t && last != t ) {
-                       var r = [];
-                       last = t;
+               if ( context ) {
+                       var ret = seed ?
+                               { expr: parts.pop(), set: makeArray(seed) } :
+                               Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
+                       set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
 
-                       t = jQuery.trim(t);
+                       if ( parts.length > 0 ) {
+                               checkSet = makeArray(set);
+                       } else {
+                               prune = false;
+                       }
 
-                       var foundToken = false;
+                       while ( parts.length ) {
+                               var cur = parts.pop(), pop = cur;
 
-                       // An attempt at speeding up child selectors that
-                       // point to a specific element tag
-                       var re = quickChild;
-                       var m = re.exec(t);
+                               if ( !Expr.relative[ cur ] ) {
+                                       cur = "";
+                               } else {
+                                       pop = parts.pop();
+                               }
 
-                       if ( m ) {
-                               nodeName = m[1].toUpperCase();
+                               if ( pop == null ) {
+                                       pop = context;
+                               }
 
-                               // Perform our own iteration and filter
-                               for ( var i = 0; ret[i]; i++ )
-                                       for ( var c = ret[i].firstChild; c; c = c.nextSibling )
-                                               if ( c.nodeType == 1 && (nodeName == "*" || c.nodeName.toUpperCase() == nodeName) )
-                                                       r.push( c );
+                               Expr.relative[ cur ]( checkSet, pop, contextXML );
+                       }
+               } else {
+                       checkSet = parts = [];
+               }
+       }
 
-                               ret = r;
-                               t = t.replace( re, "" );
-                               if ( t.indexOf(" ") == 0 ) continue;
-                               foundToken = true;
-                       } else {
-                               re = /^([>+~])\s*(\w*)/i;
+       if ( !checkSet ) {
+               checkSet = set;
+       }
 
-                               if ( (m = re.exec(t)) != null ) {
-                                       r = [];
+       if ( !checkSet ) {
+               throw "Syntax error, unrecognized expression: " + (cur || selector);
+       }
 
-                                       nodeName = m[2].toUpperCase(), merge = {};
-                                       m = m[1];
+       if ( toString.call(checkSet) === "[object Array]" ) {
+               if ( !prune ) {
+                       results.push.apply( results, checkSet );
+               } else if ( context && context.nodeType === 1 ) {
+                       for ( var i = 0; checkSet[i] != null; i++ ) {
+                               if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
+                                       results.push( set[i] );
+                               }
+                       }
+               } else {
+                       for ( var i = 0; checkSet[i] != null; i++ ) {
+                               if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
+                                       results.push( set[i] );
+                               }
+                       }
+               }
+       } else {
+               makeArray( checkSet, results );
+       }
 
-                                       for ( var j = 0, rl = ret.length; j < rl; j++ ) {
-                                               var n = m == "~" || m == "+" ? ret[j].nextSibling : ret[j].firstChild;
-                                               for ( ; n; n = n.nextSibling )
-                                                       if ( n.nodeType == 1 ) {
-                                                               var id = jQuery.data(n);
+       if ( extra ) {
+               Sizzle( extra, origContext, results, seed );
+               Sizzle.uniqueSort( results );
+       }
 
-                                                               if ( m == "~" && merge[id] ) break;
-                                                               
-                                                               if (!nodeName || n.nodeName.toUpperCase() == nodeName ) {
-                                                                       if ( m == "~" ) merge[id] = true;
-                                                                       r.push( n );
-                                                               }
-                                                               
-                                                               if ( m == "+" ) break;
-                                                       }
-                                       }
+       return results;
+};
 
-                                       ret = r;
+Sizzle.uniqueSort = function(results){
+       if ( sortOrder ) {
+               hasDuplicate = false;
+               results.sort(sortOrder);
 
-                                       // And remove the token
-                                       t = jQuery.trim( t.replace( re, "" ) );
-                                       foundToken = true;
+               if ( hasDuplicate ) {
+                       for ( var i = 1; i < results.length; i++ ) {
+                               if ( results[i] === results[i-1] ) {
+                                       results.splice(i--, 1);
                                }
                        }
+               }
+       }
 
-                       // See if there's still an expression, and that we haven't already
-                       // matched a token
-                       if ( t && !foundToken ) {
-                               // Handle multiple expressions
-                               if ( !t.indexOf(",") ) {
-                                       // Clean the result set
-                                       if ( context == ret[0] ) ret.shift();
+       return results;
+};
 
-                                       // Merge the result sets
-                                       done = jQuery.merge( done, ret );
+Sizzle.matches = function(expr, set){
+       return Sizzle(expr, null, null, set);
+};
 
-                                       // Reset the context
-                                       r = ret = [context];
+Sizzle.find = function(expr, context, isXML){
+       var set, match;
 
-                                       // Touch up the selector string
-                                       t = " " + t.substr(1,t.length);
+       if ( !expr ) {
+               return [];
+       }
 
-                               } else {
-                                       // Optimize for the case nodeName#idName
-                                       var re2 = quickID;
-                                       var m = re2.exec(t);
-                                       
-                                       // Re-organize the results, so that they're consistent
-                                       if ( m ) {
-                                               m = [ 0, m[2], m[3], m[1] ];
+       for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
+               var type = Expr.order[i], match;
+               
+               if ( (match = Expr.match[ type ].exec( expr )) ) {
+                       var left = RegExp.leftContext;
+
+                       if ( left.substr( left.length - 1 ) !== "\\" ) {
+                               match[1] = (match[1] || "").replace(/\\/g, "");
+                               set = Expr.find[ type ]( match, context, isXML );
+                               if ( set != null ) {
+                                       expr = expr.replace( Expr.match[ type ], "" );
+                                       break;
+                               }
+                       }
+               }
+       }
 
-                                       } else {
-                                               // Otherwise, do a traditional filter check for
-                                               // ID, class, and element selectors
-                                               re2 = quickClass;
-                                               m = re2.exec(t);
-                                       }
+       if ( !set ) {
+               set = context.getElementsByTagName("*");
+       }
 
-                                       m[2] = m[2].replace(/\\/g, "");
+       return {set: set, expr: expr};
+};
 
-                                       var elem = ret[ret.length-1];
+Sizzle.filter = function(expr, set, inplace, not){
+       var old = expr, result = [], curLoop = set, match, anyFound,
+               isXMLFilter = set && set[0] && isXML(set[0]);
 
-                                       // Try to do a global search by ID, where we can
-                                       if ( m[1] == "#" && elem && elem.getElementById && !jQuery.isXMLDoc(elem) ) {
-                                               // Optimization for HTML document case
-                                               var oid = elem.getElementById(m[2]);
-                                               
-                                               // Do a quick check for the existence of the actual ID attribute
-                                               // to avoid selecting by the name attribute in IE
-                                               // also check to insure id is a string to avoid selecting an element with the name of 'id' inside a form
-                                               if ( (jQuery.browser.msie||jQuery.browser.opera) && oid && typeof oid.id == "string" && oid.id != m[2] )
-                                                       oid = jQuery('[@id="'+m[2]+'"]', elem)[0];
+       while ( expr && set.length ) {
+               for ( var type in Expr.filter ) {
+                       if ( (match = Expr.match[ type ].exec( expr )) != null ) {
+                               var filter = Expr.filter[ type ], found, item;
+                               anyFound = false;
 
-                                               // Do a quick check for node name (where applicable) so
-                                               // that div#foo searches will be really fast
-                                               ret = r = oid && (!m[3] || jQuery.nodeName(oid, m[3])) ? [oid] : [];
-                                       } else {
-                                               // We need to find all descendant elements
-                                               for ( var i = 0; ret[i]; i++ ) {
-                                                       // Grab the tag name being searched for
-                                                       var tag = m[1] == "#" && m[3] ? m[3] : m[1] != "" || m[0] == "" ? "*" : m[2];
+                               if ( curLoop == result ) {
+                                       result = [];
+                               }
+
+                               if ( Expr.preFilter[ type ] ) {
+                                       match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
 
-                                                       // Handle IE7 being really dumb about <object>s
-                                                       if ( tag == "*" && ret[i].nodeName.toLowerCase() == "object" )
-                                                               tag = "param";
+                                       if ( !match ) {
+                                               anyFound = found = true;
+                                       } else if ( match === true ) {
+                                               continue;
+                                       }
+                               }
 
-                                                       r = jQuery.merge( r, ret[i].getElementsByTagName( tag ));
+                               if ( match ) {
+                                       for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
+                                               if ( item ) {
+                                                       found = filter( item, match, i, curLoop );
+                                                       var pass = not ^ !!found;
+
+                                                       if ( inplace && found != null ) {
+                                                               if ( pass ) {
+                                                                       anyFound = true;
+                                                               } else {
+                                                                       curLoop[i] = false;
+                                                               }
+                                                       } else if ( pass ) {
+                                                               result.push( item );
+                                                               anyFound = true;
+                                                       }
                                                }
+                                       }
+                               }
 
-                                               // It's faster to filter by class and be done with it
-                                               if ( m[1] == "." )
-                                                       r = jQuery.classFilter( r, m[2] );
+                               if ( found !== undefined ) {
+                                       if ( !inplace ) {
+                                               curLoop = result;
+                                       }
 
-                                               // Same with ID filtering
-                                               if ( m[1] == "#" ) {
-                                                       var tmp = [];
+                                       expr = expr.replace( Expr.match[ type ], "" );
 
-                                                       // Try to find the element with the ID
-                                                       for ( var i = 0; r[i]; i++ )
-                                                               if ( r[i].getAttribute("id") == m[2] ) {
-                                                                       tmp = [ r[i] ];
-                                                                       break;
-                                                               }
+                                       if ( !anyFound ) {
+                                               return [];
+                                       }
 
-                                                       r = tmp;
-                                               }
+                                       break;
+                               }
+                       }
+               }
 
-                                               ret = r;
-                                       }
+               // Improper expression
+               if ( expr == old ) {
+                       if ( anyFound == null ) {
+                               throw "Syntax error, unrecognized expression: " + expr;
+                       } else {
+                               break;
+                       }
+               }
+
+               old = expr;
+       }
 
-                                       t = t.replace( re2, "" );
+       return curLoop;
+};
+
+var Expr = Sizzle.selectors = {
+       order: [ "ID", "NAME", "TAG" ],
+       match: {
+               ID: /#((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
+               CLASS: /\.((?:[\w\u00c0-\uFFFF_-]|\\.)+)/,
+               NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF_-]|\\.)+)['"]*\]/,
+               ATTR: /\[\s*((?:[\w\u00c0-\uFFFF_-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
+               TAG: /^((?:[\w\u00c0-\uFFFF\*_-]|\\.)+)/,
+               CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
+               POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
+               PSEUDO: /:((?:[\w\u00c0-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
+       },
+       attrMap: {
+               "class": "className",
+               "for": "htmlFor"
+       },
+       attrHandle: {
+               href: function(elem){
+                       return elem.getAttribute("href");
+               }
+       },
+       relative: {
+               "+": function(checkSet, part, isXML){
+                       var isPartStr = typeof part === "string",
+                               isTag = isPartStr && !/\W/.test(part),
+                               isPartStrNotTag = isPartStr && !isTag;
+
+                       if ( isTag && !isXML ) {
+                               part = part.toUpperCase();
+                       }
+
+                       for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
+                               if ( (elem = checkSet[i]) ) {
+                                       while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
+
+                                       checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
+                                               elem || false :
+                                               elem === part;
                                }
+                       }
 
+                       if ( isPartStrNotTag ) {
+                               Sizzle.filter( part, checkSet, true );
                        }
+               },
+               ">": function(checkSet, part, isXML){
+                       var isPartStr = typeof part === "string";
+
+                       if ( isPartStr && !/\W/.test(part) ) {
+                               part = isXML ? part : part.toUpperCase();
+
+                               for ( var i = 0, l = checkSet.length; i < l; i++ ) {
+                                       var elem = checkSet[i];
+                                       if ( elem ) {
+                                               var parent = elem.parentNode;
+                                               checkSet[i] = parent.nodeName === part ? parent : false;
+                                       }
+                               }
+                       } else {
+                               for ( var i = 0, l = checkSet.length; i < l; i++ ) {
+                                       var elem = checkSet[i];
+                                       if ( elem ) {
+                                               checkSet[i] = isPartStr ?
+                                                       elem.parentNode :
+                                                       elem.parentNode === part;
+                                       }
+                               }
 
-                       // If a selector string still exists
-                       if ( t ) {
-                               // Attempt to filter it
-                               var val = jQuery.filter(t,r);
-                               ret = r = val.r;
-                               t = jQuery.trim(val.t);
+                               if ( isPartStr ) {
+                                       Sizzle.filter( part, checkSet, true );
+                               }
                        }
-               }
+               },
+               "": function(checkSet, part, isXML){
+                       var doneName = done++, checkFn = dirCheck;
 
-               // An error occurred with the selector;
-               // just return an empty set instead
-               if ( t )
-                       ret = [];
+                       if ( !/\W/.test(part) ) {
+                               var nodeCheck = part = isXML ? part : part.toUpperCase();
+                               checkFn = dirNodeCheck;
+                       }
 
-               // Remove the root context
-               if ( ret && context == ret[0] )
-                       ret.shift();
+                       checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
+               },
+               "~": function(checkSet, part, isXML){
+                       var doneName = done++, checkFn = dirCheck;
 
-               // And combine the results
-               done = jQuery.merge( done, ret );
+                       if ( typeof part === "string" && !/\W/.test(part) ) {
+                               var nodeCheck = part = isXML ? part : part.toUpperCase();
+                               checkFn = dirNodeCheck;
+                       }
 
-               return done;
+                       checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
+               }
        },
+       find: {
+               ID: function(match, context, isXML){
+                       if ( typeof context.getElementById !== "undefined" && !isXML ) {
+                               var m = context.getElementById(match[1]);
+                               return m ? [m] : [];
+                       }
+               },
+               NAME: function(match, context, isXML){
+                       if ( typeof context.getElementsByName !== "undefined" ) {
+                               var ret = [], results = context.getElementsByName(match[1]);
+
+                               for ( var i = 0, l = results.length; i < l; i++ ) {
+                                       if ( results[i].getAttribute("name") === match[1] ) {
+                                               ret.push( results[i] );
+                                       }
+                               }
 
-       classFilter: function(r,m,not){
-               m = " " + m + " ";
-               var tmp = [];
-               for ( var i = 0; r[i]; i++ ) {
-                       var pass = (" " + r[i].className + " ").indexOf( m ) >= 0;
-                       if ( !not && pass || not && !pass )
-                               tmp.push( r[i] );
+                               return ret.length === 0 ? null : ret;
+                       }
+               },
+               TAG: function(match, context){
+                       return context.getElementsByTagName(match[1]);
                }
-               return tmp;
        },
+       preFilter: {
+               CLASS: function(match, curLoop, inplace, result, not, isXML){
+                       match = " " + match[1].replace(/\\/g, "") + " ";
 
-       filter: function(t,r,not) {
-               var last;
+                       if ( isXML ) {
+                               return match;
+                       }
 
-               // Look for common filter expressions
-               while ( t && t != last ) {
-                       last = t;
+                       for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
+                               if ( elem ) {
+                                       if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
+                                               if ( !inplace )
+                                                       result.push( elem );
+                                       } else if ( inplace ) {
+                                               curLoop[i] = false;
+                                       }
+                               }
+                       }
 
-                       var p = jQuery.parse, m;
+                       return false;
+               },
+               ID: function(match){
+                       return match[1].replace(/\\/g, "");
+               },
+               TAG: function(match, curLoop){
+                       for ( var i = 0; curLoop[i] === false; i++ ){}
+                       return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
+               },
+               CHILD: function(match){
+                       if ( match[1] == "nth" ) {
+                               // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
+                               var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
+                                       match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
+                                       !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
+
+                               // calculate the numbers (first)n+(last) including if they are negative
+                               match[2] = (test[1] + (test[2] || 1)) - 0;
+                               match[3] = test[3] - 0;
+                       }
 
-                       for ( var i = 0; p[i]; i++ ) {
-                               m = p[i].exec( t );
+                       // TODO: Move to normal caching system
+                       match[0] = done++;
 
-                               if ( m ) {
-                                       // Remove what we just matched
-                                       t = t.substring( m[0].length );
+                       return match;
+               },
+               ATTR: function(match, curLoop, inplace, result, not, isXML){
+                       var name = match[1].replace(/\\/g, "");
+                       
+                       if ( !isXML && Expr.attrMap[name] ) {
+                               match[1] = Expr.attrMap[name];
+                       }
 
-                                       m[2] = m[2].replace(/\\/g, "");
-                                       break;
+                       if ( match[2] === "~=" ) {
+                               match[4] = " " + match[4] + " ";
+                       }
+
+                       return match;
+               },
+               PSEUDO: function(match, curLoop, inplace, result, not){
+                       if ( match[1] === "not" ) {
+                               // If we're dealing with a complex expression, or a simple one
+                               if ( chunker.exec(match[3]).length > 1 || /^\w/.test(match[3]) ) {
+                                       match[3] = Sizzle(match[3], null, null, curLoop);
+                               } else {
+                                       var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
+                                       if ( !inplace ) {
+                                               result.push.apply( result, ret );
+                                       }
+                                       return false;
                                }
+                       } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
+                               return true;
                        }
+                       
+                       return match;
+               },
+               POS: function(match){
+                       match.unshift( true );
+                       return match;
+               }
+       },
+       filters: {
+               enabled: function(elem){
+                       return elem.disabled === false && elem.type !== "hidden";
+               },
+               disabled: function(elem){
+                       return elem.disabled === true;
+               },
+               checked: function(elem){
+                       return elem.checked === true;
+               },
+               selected: function(elem){
+                       // Accessing this property makes selected-by-default
+                       // options in Safari work properly
+                       elem.parentNode.selectedIndex;
+                       return elem.selected === true;
+               },
+               parent: function(elem){
+                       return !!elem.firstChild;
+               },
+               empty: function(elem){
+                       return !elem.firstChild;
+               },
+               has: function(elem, i, match){
+                       return !!Sizzle( match[3], elem ).length;
+               },
+               header: function(elem){
+                       return /h\d/i.test( elem.nodeName );
+               },
+               text: function(elem){
+                       return "text" === elem.type;
+               },
+               radio: function(elem){
+                       return "radio" === elem.type;
+               },
+               checkbox: function(elem){
+                       return "checkbox" === elem.type;
+               },
+               file: function(elem){
+                       return "file" === elem.type;
+               },
+               password: function(elem){
+                       return "password" === elem.type;
+               },
+               submit: function(elem){
+                       return "submit" === elem.type;
+               },
+               image: function(elem){
+                       return "image" === elem.type;
+               },
+               reset: function(elem){
+                       return "reset" === elem.type;
+               },
+               button: function(elem){
+                       return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
+               },
+               input: function(elem){
+                       return /input|select|textarea|button/i.test(elem.nodeName);
+               }
+       },
+       setFilters: {
+               first: function(elem, i){
+                       return i === 0;
+               },
+               last: function(elem, i, match, array){
+                       return i === array.length - 1;
+               },
+               even: function(elem, i){
+                       return i % 2 === 0;
+               },
+               odd: function(elem, i){
+                       return i % 2 === 1;
+               },
+               lt: function(elem, i, match){
+                       return i < match[3] - 0;
+               },
+               gt: function(elem, i, match){
+                       return i > match[3] - 0;
+               },
+               nth: function(elem, i, match){
+                       return match[3] - 0 == i;
+               },
+               eq: function(elem, i, match){
+                       return match[3] - 0 == i;
+               }
+       },
+       filter: {
+               PSEUDO: function(elem, match, i, array){
+                       var name = match[1], filter = Expr.filters[ name ];
+
+                       if ( filter ) {
+                               return filter( elem, i, match, array );
+                       } else if ( name === "contains" ) {
+                               return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
+                       } else if ( name === "not" ) {
+                               var not = match[3];
+
+                               for ( var i = 0, l = not.length; i < l; i++ ) {
+                                       if ( not[i] === elem ) {
+                                               return false;
+                                       }
+                               }
 
-                       if ( !m )
-                               break;
+                               return true;
+                       }
+               },
+               CHILD: function(elem, match){
+                       var type = match[1], node = elem;
+                       switch (type) {
+                               case 'only':
+                               case 'first':
+                                       while ( (node = node.previousSibling) )  {
+                                               if ( node.nodeType === 1 ) return false;
+                                       }
+                                       if ( type == 'first') return true;
+                                       node = elem;
+                               case 'last':
+                                       while ( (node = node.nextSibling) )  {
+                                               if ( node.nodeType === 1 ) return false;
+                                       }
+                                       return true;
+                               case 'nth':
+                                       var first = match[2], last = match[3];
 
-                       // :not() is a special case that can be optimized by
-                       // keeping it out of the expression list
-                       if ( m[1] == ":" && m[2] == "not" )
-                               // optimize if only one selector found (most common case)
-                               if ( /^.[^:#\[\.]*$/.test(m[3]) )
-                                       r = jQuery.filter(m[3], r, true).r;
-                               else
-                                       r = jQuery.removeFromArray(jQuery.multiFilter(m[3], r), r);
-
-                       // We can get a big speed boost by filtering by class here
-                       else if ( m[1] == "." )
-                               r = jQuery.classFilter(r, m[2], not);
-
-                       else if ( m[1] == "[" ) {
-                               var tmp = [], type = m[3];
-                               
-                               for ( var i = 0, rl = r.length; i < rl; i++ ) {
-                                       var a = r[i], z = a[ jQuery.props[m[2]] || m[2] ];
+                                       if ( first == 1 && last == 0 ) {
+                                               return true;
+                                       }
                                        
-                                       if ( z == null || /href|src|selected/.test(m[2]) )
-                                               z = jQuery.attr(a,m[2]) || '';
-
-                                       if ( (type == "" && !!z ||
-                                                type == "=" && z == m[5] ||
-                                                type == "!=" && z != m[5] ||
-                                                type == "^=" && z && !z.indexOf(m[5]) ||
-                                                type == "$=" && z.substr(z.length - m[5].length) == m[5] ||
-                                                (type == "*=" || type == "~=") && z.indexOf(m[5]) >= 0) ^ not )
-                                                       tmp.push( a );
-                               }
-                               
-                               r = tmp;
-
-                       // We can get a speed boost by handling nth-child here
-                       } else if ( m[1] == ":" && m[2] == "nth-child" ) {
-                               var merge = {}, tmp = [],
-                                       // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
-                                       test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
-                                               m[3] == "even" && "2n" || m[3] == "odd" && "2n+1" ||
-                                               !/\D/.test(m[3]) && "0n+" + m[3] || m[3]),
-                                       // calculate the numbers (first)n+(last) including if they are negative
-                                       first = (test[1] + (test[2] || 1)) - 0, last = test[3] - 0;
-                               // loop through all the elements left in the jQuery object
-                               for ( var i = 0, rl = r.length; i < rl; i++ ) {
-                                       var node = r[i], parentNode = node.parentNode, id = jQuery.data(parentNode);
-
-                                       if ( !merge[id] ) {
-                                               var c = 1;
-
-                                               for ( var n = parentNode.firstChild; n; n = n.nextSibling )
-                                                       if ( n.nodeType == 1 )
-                                                               n.nodeIndex = c++;
-
-                                               merge[id] = true;
+                                       var doneName = match[0],
+                                               parent = elem.parentNode;
+       
+                                       if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
+                                               var count = 0;
+                                               for ( node = parent.firstChild; node; node = node.nextSibling ) {
+                                                       if ( node.nodeType === 1 ) {
+                                                               node.nodeIndex = ++count;
+                                                       }
+                                               } 
+                                               parent.sizcache = doneName;
                                        }
+                                       
+                                       var diff = elem.nodeIndex - last;
+                                       if ( first == 0 ) {
+                                               return diff == 0;
+                                       } else {
+                                               return ( diff % first == 0 && diff / first >= 0 );
+                                       }
+                       }
+               },
+               ID: function(elem, match){
+                       return elem.nodeType === 1 && elem.getAttribute("id") === match;
+               },
+               TAG: function(elem, match){
+                       return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
+               },
+               CLASS: function(elem, match){
+                       return (" " + (elem.className || elem.getAttribute("class")) + " ")
+                               .indexOf( match ) > -1;
+               },
+               ATTR: function(elem, match){
+                       var name = match[1],
+                               result = Expr.attrHandle[ name ] ?
+                                       Expr.attrHandle[ name ]( elem ) :
+                                       elem[ name ] != null ?
+                                               elem[ name ] :
+                                               elem.getAttribute( name ),
+                               value = result + "",
+                               type = match[2],
+                               check = match[4];
+
+                       return result == null ?
+                               type === "!=" :
+                               type === "=" ?
+                               value === check :
+                               type === "*=" ?
+                               value.indexOf(check) >= 0 :
+                               type === "~=" ?
+                               (" " + value + " ").indexOf(check) >= 0 :
+                               !check ?
+                               value && result !== false :
+                               type === "!=" ?
+                               value != check :
+                               type === "^=" ?
+                               value.indexOf(check) === 0 :
+                               type === "$=" ?
+                               value.substr(value.length - check.length) === check :
+                               type === "|=" ?
+                               value === check || value.substr(0, check.length + 1) === check + "-" :
+                               false;
+               },
+               POS: function(elem, match, i, array){
+                       var name = match[2], filter = Expr.setFilters[ name ];
+
+                       if ( filter ) {
+                               return filter( elem, i, match, array );
+                       }
+               }
+       }
+};
 
-                                       var add = false;
+var origPOS = Expr.match.POS;
 
-                                       if ( first == 0 ) {
-                                               if ( node.nodeIndex == last )
-                                                       add = true;
-                                       } else if ( (node.nodeIndex - last) % first == 0 && (node.nodeIndex - last) / first >= 0 )
-                                               add = true;
+for ( var type in Expr.match ) {
+       Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
+}
+
+var makeArray = function(array, results) {
+       array = Array.prototype.slice.call( array, 0 );
 
-                                       if ( add ^ not )
-                                               tmp.push( node );
+       if ( results ) {
+               results.push.apply( results, array );
+               return results;
+       }
+       
+       return array;
+};
+
+// Perform a simple check to determine if the browser is capable of
+// converting a NodeList to an array using builtin methods.
+try {
+       Array.prototype.slice.call( document.documentElement.childNodes, 0 );
+
+// Provide a fallback method if it does not work
+} catch(e){
+       makeArray = function(array, results) {
+               var ret = results || [];
+
+               if ( toString.call(array) === "[object Array]" ) {
+                       Array.prototype.push.apply( ret, array );
+               } else {
+                       if ( typeof array.length === "number" ) {
+                               for ( var i = 0, l = array.length; i < l; i++ ) {
+                                       ret.push( array[i] );
                                }
+                       } else {
+                               for ( var i = 0; array[i]; i++ ) {
+                                       ret.push( array[i] );
+                               }
+                       }
+               }
 
-                               r = tmp;
+               return ret;
+       };
+}
 
-                       // Otherwise, find the expression to execute
-                       } else {
-                               var f = jQuery.expr[m[1]];
-                               if ( typeof f != "string" )
-                                       f = jQuery.expr[m[1]][m[2]];
+var sortOrder;
 
-                               // Build a custom macro to enclose it
-                               f = eval("false||function(a,i){return " + f + "}");
+if ( document.documentElement.compareDocumentPosition ) {
+       sortOrder = function( a, b ) {
+               if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
+                       if ( a == b ) {
+                               hasDuplicate = true;
+                       }
+                       return 0;
+               }
 
-                               // Execute it against the current filter
-                               r = jQuery.grep( r, f, not );
+               var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
+               if ( ret === 0 ) {
+                       hasDuplicate = true;
+               }
+               return ret;
+       };
+} else if ( "sourceIndex" in document.documentElement ) {
+       sortOrder = function( a, b ) {
+               if ( !a.sourceIndex || !b.sourceIndex ) {
+                       if ( a == b ) {
+                               hasDuplicate = true;
                        }
+                       return 0;
                }
 
-               // Return an array of filtered elements (r)
-               // and the modified expression string (t)
-               return { r: r, t: t };
-       },
+               var ret = a.sourceIndex - b.sourceIndex;
+               if ( ret === 0 ) {
+                       hasDuplicate = true;
+               }
+               return ret;
+       };
+} else if ( document.createRange ) {
+       sortOrder = function( a, b ) {
+               if ( !a.ownerDocument || !b.ownerDocument ) {
+                       if ( a == b ) {
+                               hasDuplicate = true;
+                       }
+                       return 0;
+               }
 
-       dir: function( elem, dir ){
-               var matched = [];
-               var cur = elem[dir];
-               while ( cur && cur != document ) {
-                       if ( cur.nodeType == 1 )
-                               matched.push( cur );
-                       cur = cur[dir];
+               var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
+               aRange.selectNode(a);
+               aRange.collapse(true);
+               bRange.selectNode(b);
+               bRange.collapse(true);
+               var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
+               if ( ret === 0 ) {
+                       hasDuplicate = true;
                }
-               return matched;
-       },
-       
-       nth: function(cur,result,dir,elem){
-               result = result || 1;
-               var num = 0;
+               return ret;
+       };
+}
+
+// Check to see if the browser returns elements by name when
+// querying by getElementById (and provide a workaround)
+(function(){
+       // We're going to inject a fake input element with a specified name
+       var form = document.createElement("div"),
+               id = "script" + (new Date).getTime();
+       form.innerHTML = "<a name='" + id + "'/>";
+
+       // Inject it into the root element, check its status, and remove it quickly
+       var root = document.documentElement;
+       root.insertBefore( form, root.firstChild );
+
+       // The workaround has to do additional checks after a getElementById
+       // Which slows things down for other browsers (hence the branching)
+       if ( !!document.getElementById( id ) ) {
+               Expr.find.ID = function(match, context, isXML){
+                       if ( typeof context.getElementById !== "undefined" && !isXML ) {
+                               var m = context.getElementById(match[1]);
+                               return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
+                       }
+               };
 
-               for ( ; cur; cur = cur[dir] )
-                       if ( cur.nodeType == 1 && ++num == result )
-                               break;
+               Expr.filter.ID = function(elem, match){
+                       var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
+                       return elem.nodeType === 1 && node && node.nodeValue === match;
+               };
+       }
 
-               return cur;
-       },
+       root.removeChild( form );
+       root = form = null; // release memory in IE
+})();
+
+(function(){
+       // Check to see if the browser returns only elements
+       // when doing getElementsByTagName("*")
+
+       // Create a fake element
+       var div = document.createElement("div");
+       div.appendChild( document.createComment("") );
+
+       // Make sure no comments are found
+       if ( div.getElementsByTagName("*").length > 0 ) {
+               Expr.find.TAG = function(match, context){
+                       var results = context.getElementsByTagName(match[1]);
+
+                       // Filter out possible comments
+                       if ( match[1] === "*" ) {
+                               var tmp = [];
+
+                               for ( var i = 0; results[i]; i++ ) {
+                                       if ( results[i].nodeType === 1 ) {
+                                               tmp.push( results[i] );
+                                       }
+                               }
+
+                               results = tmp;
+                       }
+
+                       return results;
+               };
+       }
+
+       // Check to see if an attribute returns normalized href attributes
+       div.innerHTML = "<a href='#'></a>";
+       if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
+                       div.firstChild.getAttribute("href") !== "#" ) {
+               Expr.attrHandle.href = function(elem){
+                       return elem.getAttribute("href", 2);
+               };
+       }
+
+       div = null; // release memory in IE
+})();
+
+if ( document.querySelectorAll ) (function(){
+       var oldSizzle = Sizzle, div = document.createElement("div");
+       div.innerHTML = "<p class='TEST'></p>";
+
+       // Safari can't handle uppercase or unicode characters when
+       // in quirks mode.
+       if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
+               return;
+       }
        
-       sibling: function( n, elem ) {
-               var r = [];
+       Sizzle = function(query, context, extra, seed){
+               context = context || document;
 
-               for ( ; n; n = n.nextSibling ) {
-                       if ( n.nodeType == 1 && (!elem || n != elem) )
-                               r.push( n );
+               // Only use querySelectorAll on non-XML documents
+               // (ID selectors don't work in non-HTML documents)
+               if ( !seed && context.nodeType === 9 && !isXML(context) ) {
+                       try {
+                               return makeArray( context.querySelectorAll(query), extra );
+                       } catch(e){}
                }
+               
+               return oldSizzle(query, context, extra, seed);
+       };
 
-               return r;
+       for ( var prop in oldSizzle ) {
+               Sizzle[ prop ] = oldSizzle[ prop ];
        }
-});
 
+       div = null; // release memory in IE
+})();
+
+if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
+       var div = document.createElement("div");
+       div.innerHTML = "<div class='test e'></div><div class='test'></div>";
+
+       // Opera can't find a second classname (in 9.6)
+       if ( div.getElementsByClassName("e").length === 0 )
+               return;
+
+       // Safari caches class attributes, doesn't catch changes (in 3.2)
+       div.lastChild.className = "e";
+
+       if ( div.getElementsByClassName("e").length === 1 )
+               return;
+
+       Expr.order.splice(1, 0, "CLASS");
+       Expr.find.CLASS = function(match, context, isXML) {
+               if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
+                       return context.getElementsByClassName(match[1]);
+               }
+       };
+
+       div = null; // release memory in IE
+})();
+
+function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
+       var sibDir = dir == "previousSibling" && !isXML;
+       for ( var i = 0, l = checkSet.length; i < l; i++ ) {
+               var elem = checkSet[i];
+               if ( elem ) {
+                       if ( sibDir && elem.nodeType === 1 ){
+                               elem.sizcache = doneName;
+                               elem.sizset = i;
+                       }
+                       elem = elem[dir];
+                       var match = false;
+
+                       while ( elem ) {
+                               if ( elem.sizcache === doneName ) {
+                                       match = checkSet[elem.sizset];
+                                       break;
+                               }
+
+                               if ( elem.nodeType === 1 && !isXML ){
+                                       elem.sizcache = doneName;
+                                       elem.sizset = i;
+                               }
+
+                               if ( elem.nodeName === cur ) {
+                                       match = elem;
+                                       break;
+                               }
+
+                               elem = elem[dir];
+                       }
+
+                       checkSet[i] = match;
+               }
+       }
+}
+
+function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
+       var sibDir = dir == "previousSibling" && !isXML;
+       for ( var i = 0, l = checkSet.length; i < l; i++ ) {
+               var elem = checkSet[i];
+               if ( elem ) {
+                       if ( sibDir && elem.nodeType === 1 ) {
+                               elem.sizcache = doneName;
+                               elem.sizset = i;
+                       }
+                       elem = elem[dir];
+                       var match = false;
+
+                       while ( elem ) {
+                               if ( elem.sizcache === doneName ) {
+                                       match = checkSet[elem.sizset];
+                                       break;
+                               }
+
+                               if ( elem.nodeType === 1 ) {
+                                       if ( !isXML ) {
+                                               elem.sizcache = doneName;
+                                               elem.sizset = i;
+                                       }
+                                       if ( typeof cur !== "string" ) {
+                                               if ( elem === cur ) {
+                                                       match = true;
+                                                       break;
+                                               }
+
+                                       } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
+                                               match = elem;
+                                               break;
+                                       }
+                               }
+
+                               elem = elem[dir];
+                       }
+
+                       checkSet[i] = match;
+               }
+       }
+}
+
+var contains = document.compareDocumentPosition ?  function(a, b){
+       return a.compareDocumentPosition(b) & 16;
+} : function(a, b){
+       return a !== b && (a.contains ? a.contains(b) : true);
+};
+
+var isXML = function(elem){
+       return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
+               !!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
+};
+
+var posProcess = function(selector, context){
+       var tmpSet = [], later = "", match,
+               root = context.nodeType ? [context] : context;
+
+       // Position selectors must be done after the filter
+       // And so must :not(positional) so we move all PSEUDOs to the end
+       while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
+               later += match[0];
+               selector = selector.replace( Expr.match.PSEUDO, "" );
+       }
+
+       selector = Expr.relative[selector] ? selector + "*" : selector;
+
+       for ( var i = 0, l = root.length; i < l; i++ ) {
+               Sizzle( selector, root[i], tmpSet );
+       }
+
+       return Sizzle.filter( later, tmpSet );
+};
+
+// EXPOSE
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+jQuery.expr[":"] = jQuery.expr.filters;
+jQuery.unique = Sizzle.uniqueSort;
+
+return;
+
+window.Sizzle = Sizzle;
+
+})();