From 874cd9077fef75004b45a23fadf04b75778d583c Mon Sep 17 00:00:00 2001
From: nacin <nacin@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Wed, 2 May 2012 16:37:42 +0000
Subject: [PATCH] Add characters to be stripped or replaced in
 sanitize_title_with_dashes().  * Replace times (multiplication sign) with x. 
 * Strip low quotation marks and other curly quotes we don't already deal
 with. props SergeyBiryukov. fixes #19820.

git-svn-id: http://core.svn.wordpress.org/trunk@20686 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/formatting.php | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index 326530126..3d8484601 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -917,16 +917,24 @@ function sanitize_title_with_dashes($title, $raw_title = '', $context = 'display
 	$title = str_replace('.', '-', $title);
 
 	if ( 'save' == $context ) {
-		// nbsp, ndash and mdash
+		// Convert nbsp, ndash and mdash to hyphens
 		$title = str_replace( array( '%c2%a0', '%e2%80%93', '%e2%80%94' ), '-', $title );
-		// iexcl and iquest
-		$title = str_replace( array( '%c2%a1', '%c2%bf' ), '', $title );
-		// angle quotes
-		$title = str_replace( array( '%c2%ab', '%c2%bb', '%e2%80%b9', '%e2%80%ba' ), '', $title );
-		// curly quotes
-		$title = str_replace( array( '%e2%80%98', '%e2%80%99', '%e2%80%9c', '%e2%80%9d' ), '', $title );
-		// copy, reg, deg, hellip and trade
-		$title = str_replace( array( '%c2%a9', '%c2%ae', '%c2%b0', '%e2%80%a6', '%e2%84%a2' ), '', $title );
+
+		// Strip these characters entirely
+		$title = str_replace( array(
+			// iexcl and iquest
+			'%c2%a1', '%c2%bf',
+			// angle quotes
+			'%c2%ab', '%c2%bb', '%e2%80%b9', '%e2%80%ba',
+			// curly quotes
+			'%e2%80%98', '%e2%80%99', '%e2%80%9c', '%e2%80%9d',
+			'%e2%80%9a', '%e2%80%9b', '%e2%80%9e', '%e2%80%9f',
+			// copy, reg, deg, hellip and trade
+			'%c2%a9', '%c2%ae', '%c2%b0', '%e2%80%a6', '%e2%84%a2',
+		), '', $title );
+
+		// Convert times to x
+		$title = str_replace( '%c3%97', 'x', $title );
 	}
 
 	$title = preg_replace('/[^%a-z0-9 _-]/', '', $title);