# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1275480235 -3600
# Node ID 7b4f180d7c6fd09e10530b64ae1d4507b1ef8707
# Parent  d6151c9a6f7e2b558b802c901924dc2be2d9ee42
util.filters: Don't traceback with no filters of a type added

diff -r d6151c9a6f7e -r 7b4f180d7c6f util/filters.lua
--- a/util/filters.lua	Wed Jun 02 17:25:01 2010 +0500
+++ b/util/filters.lua	Wed Jun 02 13:03:55 2010 +0100
@@ -16,8 +16,10 @@
 	
 	function session.filter(type, data)
 		local filter_list = filters[type];
-		for i = 1, #filter_list do
-			data = filter_list[i](data);
+		if filter_list then
+			for i = 1, #filter_list do
+				data = filter_list[i](data);
+			end
 		end
 		return data;
 	end