Applied the RegExp issues reported by Jeff Robinson here: http://jmrware.com/articles/2010/jqueryregex/jQueryRegexes.html Additionally broke out all remaining inline RegExp. Fixes #7062.

src/ajax.js

@@ -1,12 +1,13 @@
 (function( jQuery ) {
 
 var jsc = jQuery.now(),
-	rscript = /<script(.|\s)*?\/script>/gi,
+	rscript = /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi,
-	rselectTextarea = /select|textarea/i,
+	rselectTextarea = /^(?:select|textarea)/i,
-	rinput = /color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week/i,
+	rinput = /^(?:color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,
+	rbracket = /\[\]$/,
 	jsre = /\=\?(&|$)/,
 	rquery = /\?/,
-	rts = /(\?|&)_=.*?(&|$)/,
+	rts = /([?&])_=[^&]*(&?)/,
 	rurl = /^(\w+:)?\/\/([^\/?#]+)/,
 	r20 = /%20/g,
 
@@ -61,7 +62,7 @@ jQuery.fn.extend({
 					// See if a selector was specified
 					self.html( selector ?
 						// Create a dummy div to hold the results
-						jQuery("<div />")
+						jQuery("<div>")
 							// inject the contents of the document in, removing the scripts
 							// to avoid any 'Permission Denied' errors in IE
 							.append(res.responseText.replace(rscript, ""))
@@ -542,7 +543,7 @@ function buildParams( prefix, obj, traditional, add ) {
 	if ( jQuery.isArray(obj) ) {
 		// Serialize array item.
 		jQuery.each( obj, function( i, v ) {
-			if ( traditional || /\[\]$/.test( prefix ) ) {
+			if ( traditional || rbracket.test( prefix ) ) {
 				// Treat each array item as a scalar.
 				add( prefix, v );
 

src/attributes.js

@@ -3,11 +3,11 @@
 var rclass = /[\n\t]/g,
 	rspace = /\s+/,
 	rreturn = /\r/g,
-	rspecialurl = /href|src|style/,
+	rspecialurl = /^(?:href|src|style)$/,
-	rtype = /(button|input)/i,
+	rtype = /^(?:button|input)$/i,
-	rfocusable = /(button|input|object|select|textarea)/i,
+	rfocusable = /^(?:button|input|object|select|textarea)$/i,
-	rclickable = /^(a|area)$/i,
+	rclickable = /^a(?:rea)?$/i,
-	rradiocheck = /radio|checkbox/;
+	rradiocheck = /^(?:radio|checkbox)$/i;
 
 jQuery.fn.extend({
 	attr: function( name, value ) {

src/core.js

@@ -17,21 +17,37 @@ var jQuery = function( selector, context ) {
 
 	// A simple way to check for HTML strings or ID strings
 	// (both of which we optimize for)
-	quickExpr = /^[^<]*(<[\w\W]+>)[^>]*$|^#([\w\-]+)$/,
+	quickExpr = /^(?:[^<]*(<[\w\W]+>)[^>]*$|#([\w-]+)$)/,
 
 	// Is it a simple selector
 	isSimple = /^.[^:#\[\.,]*$/,
 
 	// Check if a string has a non-whitespace character in it
 	rnotwhite = /\S/,
+	rwhite = /\s/,
 
 	// Used for trimming whitespace
 	trimLeft = /^\s+/,
 	trimRight = /\s+$/,
 
+	// Check for non-word characters
+	rnonword = /\W/,
+
 	// Match a standalone tag
 	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
 
+	// JSON RegExp
+	rvalidchars = /^[\],:{}\s]*$/,
+	rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
+	rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
+	rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
+
+	// Useragent RegExp
+	rwebkit = /(webkit)[ \/]([\w.]+)/,
+	ropera = /(opera)(?:.*version)?[ \/]([\w.]+)/,
+	rmsie = /(msie) ([\w.]+)/,
+	rmozilla = /(mozilla)(?:.*? rv:([\w.]+))?/,
+
 	// Keep a UserAgent string for use with jQuery.browser
 	userAgent = navigator.userAgent,
 
@@ -136,7 +152,7 @@ jQuery.fn = jQuery.prototype = {
 				}
 
 			// HANDLE: $("TAG")
-			} else if ( !context && /^\w+$/.test( selector ) ) {
+			} else if ( !context && !rnonword.test( selector ) ) {
 				this.selector = selector;
 				this.context = document;
 				selector = document.getElementsByTagName( selector );
@@ -509,9 +525,9 @@ jQuery.extend({
 		
 		// Make sure the incoming data is actual JSON
 		// Logic borrowed from http://json.org/json2.js
-		if ( /^[\],:{}\s]*$/.test(data.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, "@")
+		if ( rvalidchars.test(data.replace(rvalidescape, "@")
-			.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, "]")
+			.replace(rvalidtokens, "]")
-			.replace(/(?:^|:|,)(?:\s*\[)+/g, "")) ) {
+			.replace(rvalidbraces, "")) ) {
 
 			// Try to use the native JSON parser first
 			return window.JSON && window.JSON.parse ?
@@ -761,10 +777,10 @@ jQuery.extend({
 	uaMatch: function( ua ) {
 		ua = ua.toLowerCase();
 
-		var match = /(webkit)[ \/]([\w.]+)/.exec( ua ) ||
+		var match = rwebkit.exec( ua ) ||
-			/(opera)(?:.*version)?[ \/]([\w.]+)/.exec( ua ) ||
+			ropera.exec( ua ) ||
-			/(msie) ([\w.]+)/.exec( ua ) ||
+			rmsie.exec( ua ) ||
-			!/compatible/.test( ua ) && /(mozilla)(?:.*? rv:([\w.]+))?/.exec( ua ) ||
+			ua.indexOf("compatible") < 0 && rmozilla.exec( ua ) ||
 			[];
 
 		return { browser: match[1] || "", version: match[2] || "0" };
@@ -792,7 +808,7 @@ if ( indexOf ) {
 
 // Verify that \s matches non-breaking spaces
 // (IE fails on this test)
-if ( !/\s/.test( "\xA0" ) ) {
+if ( !rwhite.test( "\xA0" ) ) {
 	trimLeft = /^[\s\xA0]+/;
 	trimRight = /[\s\xA0]+$/;
 }

src/data.js

@@ -1,7 +1,8 @@
 (function( jQuery ) {
 
 var windowData = {},
-	rbrace = /^(?:\{.*\}|\[.*\])$/;
+	rbrace = /^(?:\{.*\}|\[.*\])$/,
+	rdigit = /\d/;
 
 jQuery.extend({
 	cache: {},
@@ -157,7 +158,7 @@ jQuery.fn.extend({
 							data = data === "true" ? true :
 								data === "false" ? false :
 								data === "null" ? null :
-								/\d/.test( data ) && !isNaN( data ) ? parseFloat( data ) :
+								rdigit.test( data ) && !isNaN( data ) ? parseFloat( data ) :
 								rbrace.test( data ) ? jQuery.parseJSON( data ) :
 								data;
 						} catch( e ) {}

src/effects.js

@@ -1,7 +1,7 @@
 (function( jQuery ) {
 
 var elemdisplay = {},
-	rfxtypes = /toggle|show|hide/,
+	rfxtypes = /^(?:toggle|show|hide)$/,
 	rfxnum = /^([+\-]=)?([\d+.\-]+)(.*)$/,
 	timerId,
 	fxAttrs = [
@@ -31,7 +31,7 @@ jQuery.fn.extend({
 						display = elemdisplay[ nodeName ];
 
 					} else {
-						var elem = jQuery("<" + nodeName + " />").appendTo("body");
+						var elem = jQuery("<" + nodeName + ">").appendTo("body");
 
 						display = elem.css("display");
 

src/event.js

@@ -1,10 +1,12 @@
 (function( jQuery ) {
 
 var rnamespaces = /\.(.*)$/,
+	rformElems = /^(?:textarea|input|select)$/i,
+	rperiod = /\./g,
+	rspace = / /g,
+	rescape = /[^\w\s.|`]/g,
 	fcleanup = function( nm ) {
-		return nm.replace(/[^\w\s\.\|`]/g, function( ch ) {
+		return nm.replace(rescape, "\\$&");
-			return "\\" + ch;
-		});
 	};
 
 /*
@@ -339,7 +341,7 @@ jQuery.event = {
 			jQuery.event.trigger( event, data, parent, true );
 
 		} else if ( !event.isDefaultPrevented() ) {
-			var target = event.target, old, targetType = type.replace(/\..*$/, ""),
+			var target = event.target, old, targetType = type.replace(rnamespaces, ""),
 				isClick = jQuery.nodeName(target, "a") && targetType === "click",
 				special = jQuery.event.special[ targetType ] || {};
 
@@ -697,9 +699,7 @@ if ( !jQuery.support.submitBubbles ) {
 // change delegation, happens here so we have bind.
 if ( !jQuery.support.changeBubbles ) {
 
-	var formElems = /textarea|input|select/i,
+	var changeFilters,
-
-	changeFilters,
 
 	getVal = function( elem ) {
 		var type = elem.type, val = elem.value;
@@ -724,7 +724,7 @@ if ( !jQuery.support.changeBubbles ) {
 	testChange = function testChange( e ) {
 		var elem = e.target, data, val;
 
-		if ( !formElems.test( elem.nodeName ) || elem.readOnly ) {
+		if ( !rformElems.test( elem.nodeName ) || elem.readOnly ) {
 			return;
 		}
 
@@ -788,13 +788,13 @@ if ( !jQuery.support.changeBubbles ) {
 				jQuery.event.add( this, type + ".specialChange", changeFilters[type] );
 			}
 
-			return formElems.test( this.nodeName );
+			return rformElems.test( this.nodeName );
 		},
 
 		teardown: function( namespaces ) {
 			jQuery.event.remove( this, ".specialChange" );
 
-			return formElems.test( this.nodeName );
+			return rformElems.test( this.nodeName );
 		}
 	};
 
@@ -1073,7 +1073,7 @@ function liveHandler( event ) {
 }
 
 function liveConvert( type, selector ) {
-	return (type && type !== "*" ? type + "." : "") + selector.replace(/\./g, "`").replace(/ /g, "&");
+	return (type && type !== "*" ? type + "." : "") + selector.replace(rperiod, "`").replace(rspace, "&");
 }
 
 jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +

src/manipulation.js

@@ -2,18 +2,13 @@
 
 var rinlinejQuery = / jQuery\d+="(?:\d+|null)"/g,
 	rleadingWhitespace = /^\s+/,
-	rxhtmlTag = /(<([\w:]+)[^>]*?)\/>/g,
+	rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/ig,
-	rselfClosing = /^(?:area|br|col|embed|hr|img|input|link|meta|param)$/i,
 	rtagName = /<([\w:]+)/,
 	rtbody = /<tbody/i,
 	rhtml = /<|&#?\w+;/,
-	rnocache = /<script|<object|<embed|<option|<style/i,
+	rnocache = /<(?:script|object|embed|option|style)/i,
 	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,  // checked="checked" or checked (html5)
-	fcloseTag = function( all, front, tag ) {
+	raction = /\=([^="'>\s]+\/)>/g,
-		return rselfClosing.test( tag ) ?
-			all :
-			front + "></" + tag + ">";
-	},
 	wrapMap = {
 		option: [ 1, "<select multiple='multiple'>", "</select>" ],
 		legend: [ 1, "<fieldset>", "</fieldset>" ],
@@ -207,7 +202,7 @@ jQuery.fn.extend({
 
 				return jQuery.clean([html.replace(rinlinejQuery, "")
 					// Handle the case in IE 8 where action=/test/> self-closes a tag
-					.replace(/\=([^="'>\s]+\/)>/g, '="$1">')
+					.replace(raction, '="$1">')
 					.replace(rleadingWhitespace, "")], ownerDocument)[0];
 			} else {
 				return this.cloneNode(true);
@@ -235,7 +230,7 @@ jQuery.fn.extend({
 			(jQuery.support.leadingWhitespace || !rleadingWhitespace.test( value )) &&
 			!wrapMap[ (rtagName.exec( value ) || ["", ""])[1].toLowerCase() ] ) {
 
-			value = value.replace(rxhtmlTag, fcloseTag);
+			value = value.replace(rxhtmlTag, "<$1></$2>");
 
 			try {
 				for ( var i = 0, l = this.length; i < l; i++ ) {
@@ -479,7 +474,7 @@ jQuery.extend({
 
 			} else if ( typeof elem === "string" ) {
 				// Fix "XHTML"-style tags in all browsers
-				elem = elem.replace(rxhtmlTag, fcloseTag);
+				elem = elem.replace(rxhtmlTag, "<$1></$2>");
 
 				// Trim whitespace, otherwise indexOf won't work as expected
 				var tag = (rtagName.exec( elem ) || ["", ""])[1].toLowerCase(),

src/offset.js

@@ -1,5 +1,8 @@
 (function( jQuery ) {
 
+var rtable = /^t(?:able|d|h)$/i,
+	rroot = /^(?:body|html)$/i;
+
 if ( "getBoundingClientRect" in document.documentElement ) {
 	jQuery.fn.offset = function( options ) {
 		var elem = this[0];
@@ -72,7 +75,7 @@ if ( "getBoundingClientRect" in document.documentElement ) {
 				top  += elem.offsetTop;
 				left += elem.offsetLeft;
 
-				if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && /^t(able|d|h)$/i.test(elem.nodeName)) ) {
+				if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && rtable.test(elem.nodeName)) ) {
 					top  += parseFloat( computedStyle.borderTopWidth  ) || 0;
 					left += parseFloat( computedStyle.borderLeftWidth ) || 0;
 				}
@@ -207,7 +210,7 @@ jQuery.fn.extend({
 
 		// Get correct offsets
 		offset       = this.offset(),
-		parentOffset = /^body|html$/i.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();
+		parentOffset = rroot.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();
 
 		// Subtract element margins
 		// note: when an element has margin: auto the offsetLeft and marginLeft
@@ -229,7 +232,7 @@ jQuery.fn.extend({
 	offsetParent: function() {
 		return this.map(function() {
 			var offsetParent = this.offsetParent || document.body;
-			while ( offsetParent && (!/^body|html$/i.test(offsetParent.nodeName) && jQuery.css(offsetParent, "position") === "static") ) {
+			while ( offsetParent && (!rroot.test(offsetParent.nodeName) && jQuery.css(offsetParent, "position") === "static") ) {
 				offsetParent = offsetParent.offsetParent;
 			}
 			return offsetParent;