X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fselector.js;h=6291d862187b72495b6221d3f83b3a54359ef23f;hb=bbffc99f7c60d42d4286786dfd6a43aa31d62ae2;hp=7c0bf4082cbdc1cde73ce5f9e06c68a7f41cb1fb;hpb=b16da9d762c5fc87c5a9afacd517af0036972a47;p=jquery.git

diff --git a/src/selector.js b/src/selector.js
index 7c0bf40..6291d86 100644
--- a/src/selector.js
+++ b/src/selector.js
@@ -1,27 +1,29 @@
 /*!
- * Sizzle CSS Selector Engine - v0.9.3
+ * 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,
+var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?/g,
 	done = 0,
-	toString = Object.prototype.toString;
+	toString = Object.prototype.toString,
+	hasDuplicate = false;
 
 var Sizzle = function(selector, context, results, seed) {
 	results = results || [];
-	context = context || document;
+	var origContext = context = context || document;
 
-	if ( context.nodeType !== 1 && context.nodeType !== 9 )
+	if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
 		return [];
+	}
 	
 	if ( !selector || typeof selector !== "string" ) {
 		return results;
 	}
 
-	var parts = [], m, set, checkSet, check, mode, extra, prune = true;
+	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;
@@ -53,31 +55,43 @@ var Sizzle = function(selector, context, results, seed) {
 			}
 		}
 	} else {
-		var ret = seed ?
-			{ expr: parts.pop(), set: makeArray(seed) } :
-			Sizzle.find( parts.pop(), parts.length === 1 && context.parentNode ? context.parentNode : context, isXML(context) );
-		set = Sizzle.filter( ret.expr, ret.set );
-
-		if ( parts.length > 0 ) {
-			checkSet = makeArray(set);
-		} else {
-			prune = false;
+		// 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];
 		}
 
-		while ( parts.length ) {
-			var cur = parts.pop(), pop = cur;
+		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;
 
-			if ( !Expr.relative[ cur ] ) {
-				cur = "";
+			if ( parts.length > 0 ) {
+				checkSet = makeArray(set);
 			} else {
-				pop = parts.pop();
+				prune = false;
 			}
 
-			if ( pop == null ) {
-				pop = context;
-			}
+			while ( parts.length ) {
+				var cur = parts.pop(), pop = cur;
+
+				if ( !Expr.relative[ cur ] ) {
+					cur = "";
+				} else {
+					pop = parts.pop();
+				}
 
-			Expr.relative[ cur ]( checkSet, pop, isXML(context) );
+				if ( pop == null ) {
+					pop = context;
+				}
+
+				Expr.relative[ cur ]( checkSet, pop, contextXML );
+			}
+		} else {
+			checkSet = parts = [];
 		}
 	}
 
@@ -92,7 +106,7 @@ var Sizzle = function(selector, context, results, seed) {
 	if ( toString.call(checkSet) === "[object Array]" ) {
 		if ( !prune ) {
 			results.push.apply( results, checkSet );
-		} else if ( context.nodeType === 1 ) {
+		} 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] );
@@ -110,7 +124,25 @@ var Sizzle = function(selector, context, results, seed) {
 	}
 
 	if ( extra ) {
-		Sizzle( extra, context, results, seed );
+		Sizzle( extra, origContext, results, seed );
+		Sizzle.uniqueSort( results );
+	}
+
+	return results;
+};
+
+Sizzle.uniqueSort = function(results){
+	if ( sortOrder ) {
+		hasDuplicate = false;
+		results.sort(sortOrder);
+
+		if ( hasDuplicate ) {
+			for ( var i = 1; i < results.length; i++ ) {
+				if ( results[i] === results[i-1] ) {
+					results.splice(i--, 1);
+				}
+			}
+		}
 	}
 
 	return results;
@@ -152,7 +184,8 @@ Sizzle.find = function(expr, context, isXML){
 };
 
 Sizzle.filter = function(expr, set, inplace, not){
-	var old = expr, result = [], curLoop = set, match, anyFound;
+	var old = expr, result = [], curLoop = set, match, anyFound,
+		isXMLFilter = set && set[0] && isXML(set[0]);
 
 	while ( expr && set.length ) {
 		for ( var type in Expr.filter ) {
@@ -165,7 +198,7 @@ Sizzle.filter = function(expr, set, inplace, not){
 				}
 
 				if ( Expr.preFilter[ type ] ) {
-					match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not );
+					match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
 
 					if ( !match ) {
 						anyFound = found = true;
@@ -210,8 +243,6 @@ Sizzle.filter = function(expr, set, inplace, not){
 			}
 		}
 
-		expr = expr.replace(/\s*,\s*/, "");
-
 		// Improper expression
 		if ( expr == old ) {
 			if ( anyFound == null ) {
@@ -249,26 +280,33 @@ var Expr = Sizzle.selectors = {
 		}
 	},
 	relative: {
-		"+": function(checkSet, part){
-			for ( var i = 0, l = checkSet.length; i < l; i++ ) {
-				var elem = checkSet[i];
-				if ( elem ) {
-					var cur = elem.previousSibling;
-					while ( cur && cur.nodeType !== 1 ) {
-						cur = cur.previousSibling;
-					}
-					checkSet[i] = typeof part === "string" ?
-						cur || false :
-						cur === part;
+		"+": 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 ( typeof part === "string" ) {
+			if ( isPartStrNotTag ) {
 				Sizzle.filter( part, checkSet, true );
 			}
 		},
 		">": function(checkSet, part, isXML){
-			if ( typeof part === "string" && !/\W/.test(part) ) {
+			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++ ) {
@@ -282,21 +320,21 @@ var Expr = Sizzle.selectors = {
 				for ( var i = 0, l = checkSet.length; i < l; i++ ) {
 					var elem = checkSet[i];
 					if ( elem ) {
-						checkSet[i] = typeof part === "string" ?
+						checkSet[i] = isPartStr ?
 							elem.parentNode :
 							elem.parentNode === part;
 					}
 				}
 
-				if ( typeof part === "string" ) {
+				if ( isPartStr ) {
 					Sizzle.filter( part, checkSet, true );
 				}
 			}
 		},
 		"": function(checkSet, part, isXML){
-			var doneName = "done" + (done++), checkFn = dirCheck;
+			var doneName = done++, checkFn = dirCheck;
 
-			if ( !part.match(/\W/) ) {
+			if ( !/\W/.test(part) ) {
 				var nodeCheck = part = isXML ? part : part.toUpperCase();
 				checkFn = dirNodeCheck;
 			}
@@ -304,9 +342,9 @@ var Expr = Sizzle.selectors = {
 			checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
 		},
 		"~": function(checkSet, part, isXML){
-			var doneName = "done" + (done++), checkFn = dirCheck;
+			var doneName = done++, checkFn = dirCheck;
 
-			if ( typeof part === "string" && !part.match(/\W/) ) {
+			if ( typeof part === "string" && !/\W/.test(part) ) {
 				var nodeCheck = part = isXML ? part : part.toUpperCase();
 				checkFn = dirNodeCheck;
 			}
@@ -322,8 +360,16 @@ var Expr = Sizzle.selectors = {
 			}
 		},
 		NAME: function(match, context, isXML){
-			if ( typeof context.getElementsByName !== "undefined" && !isXML ) {
-				return context.getElementsByName(match[1]);
+			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] );
+					}
+				}
+
+				return ret.length === 0 ? null : ret;
 			}
 		},
 		TAG: function(match, context){
@@ -331,13 +377,16 @@ var Expr = Sizzle.selectors = {
 		}
 	},
 	preFilter: {
-		CLASS: function(match, curLoop, inplace, result, not){
+		CLASS: function(match, curLoop, inplace, result, not, isXML){
 			match = " " + match[1].replace(/\\/g, "") + " ";
 
-			var elem;
-			for ( var i = 0; (elem = curLoop[i]) != null; i++ ) {
+			if ( isXML ) {
+				return match;
+			}
+
+			for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
 				if ( elem ) {
-					if ( not ^ (" " + elem.className + " ").indexOf(match) >= 0 ) {
+					if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
 						if ( !inplace )
 							result.push( elem );
 					} else if ( inplace ) {
@@ -368,14 +417,14 @@ var Expr = Sizzle.selectors = {
 			}
 
 			// TODO: Move to normal caching system
-			match[0] = "done" + (done++);
+			match[0] = done++;
 
 			return match;
 		},
-		ATTR: function(match){
+		ATTR: function(match, curLoop, inplace, result, not, isXML){
 			var name = match[1].replace(/\\/g, "");
 			
-			if ( Expr.attrMap[name] ) {
+			if ( !isXML && Expr.attrMap[name] ) {
 				match[1] = Expr.attrMap[name];
 			}
 
@@ -388,7 +437,7 @@ var Expr = Sizzle.selectors = {
 		PSEUDO: function(match, curLoop, inplace, result, not){
 			if ( match[1] === "not" ) {
 				// If we're dealing with a complex expression, or a simple one
-				if ( match[3].match(chunker).length > 1 ) {
+				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);
@@ -397,7 +446,7 @@ var Expr = Sizzle.selectors = {
 					}
 					return false;
 				}
-			} else if ( Expr.match.POS.test( match[0] ) ) {
+			} else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
 				return true;
 			}
 			
@@ -494,47 +543,6 @@ var Expr = Sizzle.selectors = {
 		}
 	},
 	filter: {
-		CHILD: function(elem, match){
-			var type = match[1], parent = elem.parentNode;
-
-			var doneName = match[0];
-			
-			if ( parent && (!parent[ doneName ] || !elem.nodeIndex) ) {
-				var count = 1;
-
-				for ( var node = parent.firstChild; node; node = node.nextSibling ) {
-					if ( node.nodeType == 1 ) {
-						node.nodeIndex = count++;
-					}
-				}
-
-				parent[ doneName ] = count - 1;
-			}
-
-			if ( type == "first" ) {
-				return elem.nodeIndex == 1;
-			} else if ( type == "last" ) {
-				return elem.nodeIndex == parent[ doneName ];
-			} else if ( type == "only" ) {
-				return parent[ doneName ] == 1;
-			} else if ( type == "nth" ) {
-				var add = false, first = match[2], last = match[3];
-
-				if ( first == 1 && last == 0 ) {
-					return true;
-				}
-
-				if ( first == 0 ) {
-					if ( elem.nodeIndex == last ) {
-						add = true;
-					}
-				} else if ( (elem.nodeIndex - last) % first == 0 && (elem.nodeIndex - last) / first >= 0 ) {
-					add = true;
-				}
-
-				return add;
-			}
-		},
 		PSEUDO: function(elem, match, i, array){
 			var name = match[1], filter = Expr.filters[ name ];
 
@@ -554,6 +562,49 @@ var Expr = Sizzle.selectors = {
 				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];
+
+					if ( first == 1 && last == 0 ) {
+						return 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;
 		},
@@ -561,7 +612,8 @@ var Expr = Sizzle.selectors = {
 			return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
 		},
 		CLASS: function(elem, match){
-			return match.test( elem.className );
+			return (" " + (elem.className || elem.getAttribute("class")) + " ")
+				.indexOf( match ) > -1;
 		},
 		ATTR: function(elem, match){
 			var name = match[1],
@@ -607,11 +659,11 @@ var Expr = Sizzle.selectors = {
 var origPOS = Expr.match.POS;
 
 for ( var type in Expr.match ) {
-	Expr.match[ type ] = RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
+	Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
 }
 
 var makeArray = function(array, results) {
-	array = Array.prototype.slice.call( array );
+	array = Array.prototype.slice.call( array, 0 );
 
 	if ( results ) {
 		results.push.apply( results, array );
@@ -624,7 +676,7 @@ var makeArray = function(array, results) {
 // 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 );
+	Array.prototype.slice.call( document.documentElement.childNodes, 0 );
 
 // Provide a fallback method if it does not work
 } catch(e){
@@ -649,13 +701,67 @@ try {
 	};
 }
 
+var sortOrder;
+
+if ( document.documentElement.compareDocumentPosition ) {
+	sortOrder = function( a, b ) {
+		if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
+			if ( a == b ) {
+				hasDuplicate = true;
+			}
+			return 0;
+		}
+
+		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;
+		}
+
+		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;
+		}
+
+		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 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("form"),
+	var form = document.createElement("div"),
 		id = "script" + (new Date).getTime();
-	form.innerHTML = "<input name='" + id + "'/>";
+	form.innerHTML = "<a name='" + id + "'/>";
 
 	// Inject it into the root element, check its status, and remove it quickly
 	var root = document.documentElement;
@@ -678,6 +784,7 @@ try {
 	}
 
 	root.removeChild( form );
+	root = form = null; // release memory in IE
 })();
 
 (function(){
@@ -718,6 +825,8 @@ try {
 			return elem.getAttribute("href", 2);
 		};
 	}
+
+	div = null; // release memory in IE
 })();
 
 if ( document.querySelectorAll ) (function(){
@@ -744,10 +853,11 @@ if ( document.querySelectorAll ) (function(){
 		return oldSizzle(query, context, extra, seed);
 	};
 
-	Sizzle.find = oldSizzle.find;
-	Sizzle.filter = oldSizzle.filter;
-	Sizzle.selectors = oldSizzle.selectors;
-	Sizzle.matches = oldSizzle.matches;
+	for ( var prop in oldSizzle ) {
+		Sizzle[ prop ] = oldSizzle[ prop ];
+	}
+
+	div = null; // release memory in IE
 })();
 
 if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
@@ -765,27 +875,37 @@ if ( document.getElementsByClassName && document.documentElement.getElementsByCl
 		return;
 
 	Expr.order.splice(1, 0, "CLASS");
-	Expr.find.CLASS = function(match, context) {
-		return context.getElementsByClassName(match[1]);
+	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 && elem.nodeType ) {
-				var done = elem[doneName];
-				if ( done ) {
-					match = checkSet[ done ];
+			while ( elem ) {
+				if ( elem.sizcache === doneName ) {
+					match = checkSet[elem.sizset];
 					break;
 				}
 
-				if ( elem.nodeType === 1 && !isXML )
-					elem[doneName] = i;
+				if ( elem.nodeType === 1 && !isXML ){
+					elem.sizcache = doneName;
+					elem.sizset = i;
+				}
 
 				if ( elem.nodeName === cur ) {
 					match = elem;
@@ -801,22 +921,28 @@ function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
 }
 
 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 && elem.nodeType ) {
-				if ( elem[doneName] ) {
-					match = checkSet[ elem[doneName] ];
+			while ( elem ) {
+				if ( elem.sizcache === doneName ) {
+					match = checkSet[elem.sizset];
 					break;
 				}
 
 				if ( elem.nodeType === 1 ) {
-					if ( !isXML )
-						elem[doneName] = i;
-
+					if ( !isXML ) {
+						elem.sizcache = doneName;
+						elem.sizset = i;
+					}
 					if ( typeof cur !== "string" ) {
 						if ( elem === cur ) {
 							match = true;
@@ -845,7 +971,7 @@ var contains = document.compareDocumentPosition ?  function(a, b){
 
 var isXML = function(elem){
 	return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
-		!!elem.ownerDocument && isXML( elem.ownerDocument );
+		!!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
 };
 
 var posProcess = function(selector, context){
@@ -870,67 +996,9 @@ var posProcess = function(selector, context){
 
 // EXPOSE
 jQuery.find = Sizzle;
-jQuery.filter = Sizzle.filter;
 jQuery.expr = Sizzle.selectors;
 jQuery.expr[":"] = jQuery.expr.filters;
-
-Sizzle.selectors.filters.hidden = function(elem){
-	return "hidden" === elem.type ||
-		jQuery.css(elem, "display") === "none" ||
-		jQuery.css(elem, "visibility") === "hidden";
-};
-
-Sizzle.selectors.filters.visible = function(elem){
-	return "hidden" !== elem.type &&
-		jQuery.css(elem, "display") !== "none" &&
-		jQuery.css(elem, "visibility") !== "hidden";
-};
-
-Sizzle.selectors.filters.animated = function(elem){
-	return jQuery.grep(jQuery.timers, function(fn){
-		return elem === fn.elem;
-	}).length;
-};
-
-jQuery.multiFilter = function( expr, elems, not ) {
-	if ( not ) {
-		expr = ":not(" + expr + ")";
-	}
-
-	return Sizzle.matches(expr, elems);
-};
-
-jQuery.dir = function( elem, dir ){
-	var matched = [], cur = elem[dir];
-	while ( cur && cur != document ) {
-		if ( cur.nodeType == 1 )
-			matched.push( cur );
-		cur = cur[dir];
-	}
-	return matched;
-};
-
-jQuery.nth = function(cur, result, dir, elem){
-	result = result || 1;
-	var num = 0;
-
-	for ( ; cur; cur = cur[dir] )
-		if ( cur.nodeType == 1 && ++num == result )
-			break;
-
-	return cur;
-};
-
-jQuery.sibling = function(n, elem){
-	var r = [];
-
-	for ( ; n; n = n.nextSibling ) {
-		if ( n.nodeType == 1 && n != elem )
-			r.push( n );
-	}
-
-	return r;
-};
+jQuery.unique = Sizzle.uniqueSort;
 
 return;