local match = string.match;
module "jid"
function split(jid)
if not jid then return nil; end
local node = match(jid, "^([^@]+)@");
local server = (node and match(jid, ".-@([^@/]+)")) or match(jid, "^([^@/]+)");
local resource = match(jid, "/(.+)$");
return node, server, resource;
end