From e07570cad5306d86da375d239f84bbae91015595 Mon Sep 17 00:00:00 2001
From: Mike Taylor <mike@indexdata.com>
Date: Wed, 27 Sep 2006 12:40:44 +0000
Subject: [PATCH] callback() now removes a callback if called with an
 undefined argument.

---
 lib/ZOOM/Pod.pm |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/ZOOM/Pod.pm b/lib/ZOOM/Pod.pm
index df8e2ad..280f099 100644
--- a/lib/ZOOM/Pod.pm
+++ b/lib/ZOOM/Pod.pm
@@ -1,4 +1,4 @@
-# $Id: Pod.pm,v 1.19 2006-09-26 08:52:21 mike Exp $
+# $Id: Pod.pm,v 1.20 2006-09-27 12:40:44 mike Exp $
 
 package ZOOM::Pod;
 
@@ -205,8 +205,7 @@ sub callback {
     my($event, $sub) = @_;
 
     my $old = $this->{callback}->{$event};
-    $this->{callback}->{$event} = $sub
-	if defined $sub;
+    $this->{callback}->{$event} = $sub;
 
     return $old;
 }
-- 
1.7.10.4