From 376a031f4c01495b5afd4a1981bbff6c9584491c Mon Sep 17 00:00:00 2001
From: gbateson <gbateson>
Date: Sat, 7 Jun 2008 01:41:18 +0000
Subject: [PATCH] fix conversion of relative URLs in Hot Potatoes "<=" and "=>"
 buttons on sites where slasharguments as disabled (Site Admin -> Server ->
 HTTP -> Use slash arguments)

---
 mod/hotpot/lib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mod/hotpot/lib.php b/mod/hotpot/lib.php
index d5f9daeee70..b8c80b095ba 100644
--- a/mod/hotpot/lib.php
+++ b/mod/hotpot/lib.php
@@ -1807,7 +1807,7 @@ function hotpot_convert_navbutton_url($baseurl, $reference, $url, $course, $stri
 	$url = hotpot_convert_url($baseurl, $reference, $url, false);
 
 	// is this a $url for another hotpot in this course ?
-	if (preg_match("|^$baseurl(.*)$|", $url, $matches)) {
+	if (preg_match("|^".preg_quote($baseurl)."(.*)$|", $url, $matches)) {
 		if ($records = get_records_select('hotpot', "course='$course' AND reference='".$matches[1]."'")) {
 			$ids = array_keys($records);
 			$url = "$CFG->wwwroot/mod/hotpot/view.php?hp=".$ids[0];