From: pichetp <pichetp>
Date: Sun, 6 Sep 2009 20:34:09 +0000 (+0000)
Subject: MDL-19418 Correcting expression by escaping ~ so that it is interpreted as a charracter
X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=86e8577599dd321984d3c4f9b80cf96966db2594;p=moodle.git

MDL-19418 Correcting expression by escaping ~ so that it is interpreted as a charracter
---

diff --git a/question/type/calculated/questiontype.php b/question/type/calculated/questiontype.php
index 35fa83b64c..8327bc8c14 100644
--- a/question/type/calculated/questiontype.php
+++ b/question/type/calculated/questiontype.php
@@ -1979,7 +1979,7 @@ function qtype_calculated_find_formula_errors($formula) {
     // Strip away empty space and lowercase it
     $formula = strtolower(str_replace(' ', '', $formula));
 
-    $safeoperatorchar = '-+/*%>:^~<?=&|!'; /* */
+    $safeoperatorchar = '-+/*%>:^\~<?=&|!'; /* */
     $operatorornumber = "[$safeoperatorchar.0-9eE]";
 
     while ( preg_match("~(^|[$safeoperatorchar,(])([a-z0-9_]*)\\(($operatorornumber+(,$operatorornumber+((,$operatorornumber+)+)?)?)?\\)~",