From d333dbf554bcd4299e6d98731aab2cac1e86ad7b Mon Sep 17 00:00:00 2001
From: rolux <rolux@rolux.org>
Date: Mon, 16 May 2011 13:32:31 +0200
Subject: [PATCH] make highlight errors go away

---
 source/Ox.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/Ox.js b/source/Ox.js
index 184502de..6a17fff7 100644
--- a/source/Ox.js
+++ b/source/Ox.js
@@ -3866,7 +3866,7 @@ Ox.highlight <f> Highlight matches in a string
 @*/
 // fixme: with regexp, special chars would have to be escaped
 Ox.highlight = function(txt, str, classname) {
-    return str.length ? txt.replace(
+    return str && str.length ? txt.replace(
         new RegExp('(' + str + ')', 'ig'),
         '<span class="' + classname + '">$1</span>'
     ) : txt;