From db3f7a489c4f5e0f33175a6ed86b45c7e58580dc Mon Sep 17 00:00:00 2001
From: thepurpleblob <thepurpleblob>
Date: Wed, 21 Mar 2007 11:17:38 +0000
Subject: [PATCH] Check for empty text strings. Thanks to Quedoc.

---
 question/format/xml/format.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/question/format/xml/format.php b/question/format/xml/format.php
index 23fae5e16e0..87fbd6972d6 100755
--- a/question/format/xml/format.php
+++ b/question/format/xml/format.php
@@ -71,6 +71,10 @@ class qformat_xml extends qformat_default {
      * @return string processed text
      */
     function import_text( $text ) {
+        // quick sanity check
+        if (empty($text)) {
+            return '';
+        }
         $data = $text[0]['#'];
         return addslashes(trim( $data ));
     }