From 86aa764f0b7b659fbd8eec9333d22c3a79bdfcd5 Mon Sep 17 00:00:00 2001
From: John Resig <jeresig@gmail.com>
Date: Mon, 2 May 2011 13:14:13 -0400
Subject: [PATCH] Change check for skipping the initial quickExpr RegExp check.
 Fixes #8984.

---
 src/core.js       |  5 +++--
 test/unit/core.js | 13 ++++++++++++-
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/core.js b/src/core.js
index 8d812e38..6ab06e15 100644
--- a/src/core.js
+++ b/src/core.js
@@ -96,9 +96,10 @@ jQuery.fn = jQuery.prototype = {
 		// Handle HTML strings
 		if ( typeof selector === "string" ) {
 			// Are we dealing with HTML string or an ID?
-			if ( selector.length > 1024 ) {
-				// Assume very large strings are HTML and skip the regex check
+			if ( selector.charAt(0) === "<" || selector.charAt( selector.length - 1 ) === ">" ) {
+				// Assume that strings that start and end with <> are HTML and skip the regex check
 				match = [ null, selector, null ];
+
 			} else {
 				match = quickExpr.exec( selector );
 			}
diff --git a/test/unit/core.js b/test/unit/core.js
index f0bf24cd..7690756d 100644
--- a/test/unit/core.js
+++ b/test/unit/core.js
@@ -12,7 +12,7 @@ test("Basic requirements", function() {
 });
 
 test("jQuery()", function() {
-	expect(25);
+	expect(29);
 
 	// Basic constructor's behavior
 
@@ -96,6 +96,17 @@ test("jQuery()", function() {
 
 	// manually clean up detached elements
 	elem.remove();
+
+	equals( jQuery(" <div/> ").length, 1, "Make sure whitespace is trimmed." );
+	equals( jQuery(" a<div/>b ").length, 1, "Make sure whitespace and other characters are trimmed." );
+
+	var long = "";
+	for ( var i = 0; i < 128; i++ ) {
+		long += "12345678";
+	}
+
+	equals( jQuery(" <div>" + long + "</div> ").length, 1, "Make sure whitespace is trimmed on long strings." );
+	equals( jQuery(" a<div>" + long + "</div>b ").length, 1, "Make sure whitespace and other characters are trimmed on long strings." );
 });
 
 test("selector state", function() {