X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=cdd78517f453a8d142f2dc07af814c9dc3539c34;hb=449e099b97d823ed0252d8821880bc0e471701ea;hp=aeae874c0e271d53fa1daf1ce15486b67a836f3b;hpb=9e1a955aab953d778e8d8a8c05e13135e87f3e46;p=jquery.git

diff --git a/src/core.js b/src/core.js
index aeae874..cdd7851 100644
--- a/src/core.js
+++ b/src/core.js
@@ -32,13 +32,14 @@ var jQuery = function( selector, context ) {
 	rtrim = /^\s+|\s+$/g,
 
 	// Match a standalone tag
-	rsingleTag = /^<(\w+)\s*\/?>$/,
+	rsingleTag = /<(\w+)\s*\/?>(?:<\/\1>)?$/,
 
 	// Keep a UserAgent string for use with jQuery.browser
 	userAgent = navigator.userAgent.toLowerCase(),
 
 	// Save a reference to some core methods
 	toString = Object.prototype.toString,
+	hasOwnProperty = Object.prototype.hasOwnProperty,
 	push = Array.prototype.push,
 	slice = Array.prototype.slice,
 	indexOf = Array.prototype.indexOf;
@@ -52,15 +53,10 @@ jQuery.fn = jQuery.prototype = {
 			return this;
 		}
 
-		// $("body"): Shortcut for quickly finding the body element
-		if ( selector === "body" && !context && document.body ) {
-			selector = document.body;
-		}
-
 		// Handle $(DOMElement)
 		if ( selector.nodeType ) {
 			this.context = this[0] = selector;
-			this.length++;
+			this.length = 1;
 			return this;
 		}
 
@@ -100,7 +96,7 @@ jQuery.fn = jQuery.prototype = {
 						}
 
 						// Otherwise, we inject the element directly into the jQuery object
-						this.length++;
+						this.length = 1;
 						this[0] = elem;
 					}
 
@@ -227,7 +223,7 @@ jQuery.fn = jQuery.prototype = {
 	},
 
 	is: function( selector ) {
-		return !!selector && jQuery.multiFilter( selector, this ).length > 0;
+		return !!selector && jQuery.filter( selector, this ).length > 0;
 	},
 
 	// For internal use only.
@@ -284,7 +280,7 @@ jQuery.extend = jQuery.fn.extend = function() {
 						clone = src;
 					} else if ( jQuery.isArray(copy) ) {
 						clone = [];
-					} else if ( jQuery.isObject(copy) ) {
+					} else if ( jQuery.isObjectLiteral(copy) ) {
 						clone = {};
 					} else {
 						clone = copy;
@@ -327,8 +323,18 @@ jQuery.extend({
 		return toString.call(obj) === "[object Array]";
 	},
 
-	isObject: function( obj ) {
-		return this.constructor.call(obj) === Object;
+	isObjectLiteral: function( obj ) {
+		if ( toString.call(obj) !== "[object Object]" ) {
+			return false;
+		}
+		
+		//own properties are iterated firstly,
+		//so to speed up, we can test last one if it is own or not
+		
+		var key;
+		for ( key in obj ) {}
+		
+		return !key || hasOwnProperty.call( obj, key );
 	},
 
 	isEmptyObject: function( obj ) {
@@ -449,43 +455,13 @@ jQuery.extend({
 		// expando of getElementsByTagName
 		var i = 0, elem, pos = first.length;
 
-		// Also, we need to make sure that the correct elements are being returned
-		// (IE returns comment nodes in a '*' query)
-		if ( !jQuery.support.getAll ) {
-			while ( (elem = second[ i++ ]) != null ) {
-				if ( elem.nodeType !== 8 ) {
-					first[ pos++ ] = elem;
-				}
-			}
-
-		} else {
-			while ( (elem = second[ i++ ]) != null ) {
-				first[ pos++ ] = elem;
-			}
+		while ( (elem = second[ i++ ]) != null ) {
+			first[ pos++ ] = elem;
 		}
 
 		return first;
 	},
 
-	unique: function( array ) {
-		var ret = [], done = {}, id;
-
-		try {
-			for ( var i = 0, length = array.length; i < length; i++ ) {
-				id = jQuery.data( array[ i ] );
-
-				if ( !done[ id ] ) {
-					done[ id ] = true;
-					ret.push( array[ i ] );
-				}
-			}
-		} catch( e ) {
-			ret = array;
-		}
-
-		return ret;
-	},
-
 	grep: function( elems, callback, inv ) {
 		var ret = [];