From 1bca5d994da6cea2662007469e72390593a3c54a Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Wed, 30 Aug 2006 16:50:12 +0000
Subject: [PATCH] Don't duplicate nofollow on edit. Props filosofo.  fixes
 #2995

git-svn-id: https://develop.svn.wordpress.org/trunk@4135 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/formatting.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index f027869fad..999ce65dd8 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -598,7 +598,7 @@ function wp_rel_nofollow( $text ) {
 	global $wpdb;
 	// This is a pre save filter, so text is already escaped.
 	$text = stripslashes($text);
-	$text = preg_replace('|<a (.+?)>|i', '<a $1 rel="nofollow">', $text);
+	$text = preg_replace('|<a (.+?)>|ie', "'<a ' . str_replace(' rel=\"nofollow\"','',stripslashes('$1')) . ' rel=\"nofollow\">'", $text);
 	$text = $wpdb->escape($text);
 	return $text;
 }