X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=src%2Fcore.js;h=d2f82a6db5318e53382088d4c0aa5d7b7afbac12;hb=aadc268abf555f0f1cc7c5bc05d0dc73b35cb705;hp=5f2cf20b909829f3bc18d4154f6aed4e30e7a944;hpb=18a6fbbb6ab0bdabbbd377d23385650e45c30e74;p=jquery.git

diff --git a/src/core.js b/src/core.js
index 5f2cf20..d2f82a6 100644
--- a/src/core.js
+++ b/src/core.js
@@ -31,23 +31,31 @@ var jQuery = function( selector, context ) {
 	// Used for trimming whitespace
 	rtrim = /^\s+|\s+$/g,
 
+	// Match a standalone tag
+	rsingleTag = /^<(\w+)\s*\/?>$/,
+
 	// Keep a UserAgent string for use with jQuery.browser
 	userAgent = navigator.userAgent.toLowerCase(),
 
 	// Save a reference to some core methods
 	toString = Object.prototype.toString,
 	push = Array.prototype.push,
-	slice = Array.prototype.slice;
-
-// Expose jQuery to the global object
-window.jQuery = window.$ = jQuery;
+	slice = Array.prototype.slice,
+	indexOf = Array.prototype.indexOf;
 
 jQuery.fn = jQuery.prototype = {
 	init: function( selector, context ) {
-		var match, elem, ret;
+		var match, elem, ret, doc;
 
 		// Handle $(""), $(null), or $(undefined)
-		if ( !selector ) return this;
+		if ( !selector ) {
+			return this;
+		}
+
+		// $("body"): Shortcut for quickly finding the body element
+		if ( selector === "body" && !context && document.body ) {
+			selector = document.body;
+		}
 
 		// Handle $(DOMElement)
 		if ( selector.nodeType ) {
@@ -66,7 +74,19 @@ jQuery.fn = jQuery.prototype = {
 
 				// HANDLE: $(html) -> $(array)
 				if ( match[1] ) {
-					selector = jQuery.clean( [ match[1] ], context );
+					doc = (context ? context.ownerDocument || context : document);
+
+					// If a single string is passed in and it's a single tag
+					// just do a createElement and skip the rest
+					ret = rsingleTag.exec( selector );
+
+					if ( ret ) {
+						selector = [ doc.createElement( ret[1] ) ];
+
+					} else {
+						ret = buildFragment( [ match[1] ], [ doc ] );
+						selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes;
+					}
 
 				// HANDLE: $("#id")
 				} else {
@@ -75,7 +95,9 @@ jQuery.fn = jQuery.prototype = {
 					if ( elem ) {
 						// Handle the case where IE and Opera return items
 						// by name instead of ID
-						if ( elem.id !== match[2] ) return rootjQuery.find( selector );
+						if ( elem.id !== match[2] ) {
+							return rootjQuery.find( selector );
+						}
 
 						// Otherwise, we inject the element directly into the jQuery object
 						this.length++;
@@ -87,6 +109,12 @@ jQuery.fn = jQuery.prototype = {
 					return this;
 				}
 
+			// HANDLE: $("TAG")
+			} else if ( !context && /^\w+$/.test( selector ) ) {
+				this.selector = selector;
+				this.context = document;
+				selector = document.getElementsByTagName( selector );
+
 			// HANDLE: $(expr, $(...))
 			} else if ( !context || context.jquery ) {
 				return (context || rootjQuery).find( selector );
@@ -103,8 +131,7 @@ jQuery.fn = jQuery.prototype = {
 			return rootjQuery.ready( selector );
 		}
 
-		// Make sure that old selector state is passed along
-		if ( selector.selector && selector.context ) {
+		if (selector.selector !== undefined) {
 			this.selector = selector.selector;
 			this.context = selector.context;
 		}
@@ -315,7 +342,8 @@ jQuery.extend({
 	isXMLDoc: function( elem ) {
 		// documentElement is verified for cases where it doesn't yet exist
 		// (such as loading iframes in IE - #4833)
-		return ((elem.ownerDocument || elem).documentElement || 0).nodeName !== "HTML";
+		var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement;
+		return documentElement ? documentElement.nodeName !== "HTML" : false;
 	},
 
 	// Evalulates a script in a global context
@@ -500,6 +528,12 @@ jQuery.extend({
 	}
 });
 
+if ( indexOf ) {
+	jQuery.inArray = function( elem, array ) {
+		return indexOf.call( array, elem );
+	};
+}
+
 // All jQuery objects should point back to these
 rootjQuery = jQuery(document);