X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=src%2Fcore.js;h=5fa944bc307f1472ab417afac3111fb05dcef5b8;hb=9de120e6d7cfffa3d990a6ccf23db3cd74e2bdc0;hp=35cac37b747c73470c7087abb25f1e8833c71004;hpb=b7a3b220a8a2b5b0378c9f176ca5ae0f786a6fcf;p=jquery.git

diff --git a/src/core.js b/src/core.js
index 35cac37..5fa944b 100644
--- a/src/core.js
+++ b/src/core.js
@@ -31,26 +31,32 @@ 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;
 		}
 
+		// $("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;
@@ -68,7 +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 {
@@ -91,6 +109,10 @@ jQuery.fn = jQuery.prototype = {
 					return this;
 				}
 
+			// HANDLE: $("TAG")
+			} else if ( !context && /^\w+$/.test( selector ) ) {
+				selector = document.getElementsByTagName( selector );
+
 			// HANDLE: $(expr, $(...))
 			} else if ( !context || context.jquery ) {
 				return (context || rootjQuery).find( selector );
@@ -319,7 +341,8 @@ 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
@@ -504,6 +527,12 @@ 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);