X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=src%2Fcore.js;h=18ecf21f000d51b4630022441c2a35d5015e9ba5;hb=03de2cb5e7945fac42bc612b290dbe460924cc51;hp=a74f0fec9d69b7a6908bd21f913353019962691a;hpb=1a7f72e7fe96654838074f88c79e021d37c5c30a;p=jquery.git

diff --git a/src/core.js b/src/core.js
index a74f0fe..18ecf21 100644
--- a/src/core.js
+++ b/src/core.js
@@ -25,6 +25,12 @@ var jQuery = function( selector, context ) {
 	// Is it a simple selector
 	isSimple = /^.[^:#\[\.,]*$/,
 
+	// Check if a string has a non-whitespace character in it
+	rnotwhite = /\S/,
+
+	// Used for trimming whitespace
+	rtrim = /^\s+|\s+$/g,
+
 	// Keep a UserAgent string for use with jQuery.browser
 	userAgent = navigator.userAgent.toLowerCase(),
 
@@ -303,7 +309,7 @@ jQuery.extend({
 
 	// Evalulates a script in a global context
 	globalEval: function( data ) {
-		if ( data && /\S/.test(data) ) {
+		if ( data && rnotwhite.test(data) ) {
 			// Inspired by code by Andrea Giammarchi
 			// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
 			var head = document.getElementsByTagName("head")[0] || document.documentElement,
@@ -366,7 +372,7 @@ jQuery.extend({
 	},
 
 	trim: function( text ) {
-		return (text || "").replace( /^\s+|\s+$/g, "" );
+		return (text || "").replace( rtrim, "" );
 	},
 
 	makeArray: function( array ) {
@@ -474,7 +480,7 @@ jQuery.extend({
 	// It's included for backwards compatibility and plugins,
 	// although they should work to migrate away.
 	browser: {
-		version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [0,'0'])[1],
+		version: (/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/.exec(userAgent) || [0,'0'])[1],
 		safari: /webkit/.test( userAgent ),
 		opera: /opera/.test( userAgent ),
 		msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),