X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=src%2Fselector.js;h=1f3ceb5c1fb32ca78b4432bbd53cccd91e9042f1;hb=bbf3334db107abf72cbb3247b68b7e40d9f2cdfe;hp=517ea607538809e4b0dd4339f9469204652c141e;hpb=2c31a1624f72df3987cd1d0d3605c359658986e5;p=jquery.git

diff --git a/src/selector.js b/src/selector.js
index 517ea60..1f3ceb5 100644
--- a/src/selector.js
+++ b/src/selector.js
@@ -8,7 +8,8 @@
 
 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 || [];
@@ -550,7 +551,7 @@ var Expr = Sizzle.selectors = {
 			} else if ( name === "not" ) {
 				var not = match[3];
 
-				for ( var i = 0, l = not.length; i < l; i++ ) {
+				for ( i = 0, l = not.length; i < l; i++ ) {
 					if ( not[i] === elem ) {
 						return false;
 					}
@@ -564,13 +565,13 @@ var Expr = Sizzle.selectors = {
 			switch (type) {
 				case 'only':
 				case 'first':
-					while (node = node.previousSibling)  {
+					while ( (node = node.previousSibling) )  {
 						if ( node.nodeType === 1 ) return false;
 					}
 					if ( type == 'first') return true;
 					node = elem;
 				case 'last':
-					while (node = node.nextSibling)  {
+					while ( (node = node.nextSibling) )  {
 						if ( node.nodeType === 1 ) return false;
 					}
 					return true;
@@ -760,6 +761,7 @@ if ( document.documentElement.compareDocumentPosition ) {
 	}
 
 	root.removeChild( form );
+	root = form = null; // release memory in IE
 })();
 
 (function(){
@@ -800,6 +802,8 @@ if ( document.documentElement.compareDocumentPosition ) {
 			return elem.getAttribute("href", 2);
 		};
 	}
+
+	div = null; // release memory in IE
 })();
 
 if ( document.querySelectorAll ) (function(){
@@ -829,6 +833,8 @@ if ( document.querySelectorAll ) (function(){
 	for ( var prop in oldSizzle ) {
 		Sizzle[ prop ] = oldSizzle[ prop ];
 	}
+
+	div = null; // release memory in IE
 })();
 
 if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
@@ -851,6 +857,8 @@ if ( document.getElementsByClassName && document.documentElement.getElementsByCl
 			return context.getElementsByClassName(match[1]);
 		}
 	};
+
+	div = null; // release memory in IE
 })();
 
 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
@@ -969,11 +977,17 @@ jQuery.expr = Sizzle.selectors;
 jQuery.expr[":"] = jQuery.expr.filters;
 
 Sizzle.selectors.filters.hidden = function(elem){
-	return elem.offsetWidth === 0 && elem.offsetHeight === 0;
+	var width = elem.offsetWidth, height = elem.offsetHeight,
+		 force = /^tr$/i.test( elem.tagName ); // ticket #4512
+	return ( width === 0 && height === 0 && !force ) ?
+		true :
+			( width !== 0 && height !== 0 && !force ) ?
+				false :
+					!!( jQuery.curCSS(elem, "display") === "none" );
 };
 
 Sizzle.selectors.filters.visible = function(elem){
-	return elem.offsetWidth > 0 || elem.offsetHeight > 0;
+	return !Sizzle.selectors.filters.hidden(elem);
 };
 
 Sizzle.selectors.filters.animated = function(elem){