From 9b591073a12b2d031b3a63b0b0bbdf640fbbc056 Mon Sep 17 00:00:00 2001
From: azaozz <azaozz@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Sat, 14 Mar 2009 01:35:47 +0000
Subject: [PATCH] Fix regex in sanitize_email(), props sambauers, see #9316

git-svn-id: http://svn.automattic.com/wordpress/trunk@10783 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/formatting.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index 7603b8bea..19d175eca 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -1516,7 +1516,8 @@ function sanitize_email( $email ) {
 
 	// LOCAL PART
 	// Test for invalid characters
-	if ( !preg_match( '/^[a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]+$/', $local ) ) {
+	$local = preg_replace( '/[^a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]/', '', $local );
+	if ( '' === $local ) {
 		return apply_filters( 'sanitize_email', '', $email, 'local_invalid_chars' );
 	}