# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1259343235 0
# Node ID 0ad29a5485d6d3cca93d759a7dafc18d27f4d152
# Parent  49e9a8d57981abc6cd39fed2d335959770d25765
util.jid: Add join(node, host, resource) function to join the components and return nil if invalid

diff -r 49e9a8d57981 -r 0ad29a5485d6 util/jid.lua
--- a/util/jid.lua	Wed Nov 25 22:00:33 2009 +0500
+++ b/util/jid.lua	Fri Nov 27 17:33:55 2009 +0000
@@ -65,4 +65,17 @@
 	return host;
 end
 
+function join(node, host, resource)
+	if node and host and resource then
+		return node.."@"..host.."/"..resource;
+	elseif node and host then
+		return node.."@"..host;
+	elseif host and resource then
+		return host.."/"..resource;
+	elseif host then
+		return host;
+	end
+	return nil; -- Invalid JID
+end
+
 return _M;