From 64f1e408fa2123b62910e6804a6d7067dcef58b5 Mon Sep 17 00:00:00 2001
From: Jenny Gray <j.m.gray@open.ac.uk>
Date: Wed, 13 Oct 2010 14:08:02 +0000
Subject: [PATCH] MDL-24565 control characters stripped so xml output functions
 correctly

now without unicode regular expression
---
 lib/weblib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/weblib.php b/lib/weblib.php
index 0e6737e52a4..fd97d26f6af 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -1299,7 +1299,7 @@ function wikify_links($string) {
 function fix_non_standard_entities($string) {
     $text = preg_replace('/&#0*([0-9]+);?/', '&#$1;', $string);
     $text = preg_replace('/&#x0*([0-9a-fA-F]+);?/', '&#x$1;', $text);
-    $text = preg_replace('/\p{Cc}/u', ' ', $text);
+    $text = preg_replace('[\x00-\x08\x0b-\x0c\x0e-\x1f]', '', $text);
     return $text;
 }