From 1039a6fed19884d77928ebdfc4a60ff62217a72b Mon Sep 17 00:00:00 2001
From: Dougal Campbell <dougal@git.wordpress.org>
Date: Fri, 5 Nov 2004 03:56:40 +0000
Subject: [PATCH] BUGFIX: prevent '#' chars in moderation_keys from breaking
 regex handling.

git-svn-id: https://develop.svn.wordpress.org/trunk@1845 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/functions.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index 3c3f0a98a1..30db041e10 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -1677,7 +1677,11 @@ function check_comment($author, $email, $url, $comment, $user_ip) {
 		// Skip empty lines
 		if (empty($word)) { continue; }
 
-		$pattern = "#$word#i";
+		// Do some escaping magic so that '#' chars in the 
+		// spam words don't break things:
+		$word = preg_replace('/(\\\\|#)/','\\\\$1',$word);
+		
+		$pattern = "#$word#i"; 
 		if ( preg_match($pattern, $author) ) return false;
 		if ( preg_match($pattern, $email) ) return false;
 		if ( preg_match($pattern, $url) ) return false;