8 local debug = debug;

     8 local debug = debug;

     9 local t_remove = table.remove;

     9 local t_remove = table.remove;

    10 local parse_xml = require "util.xml".parse;

    10 local parse_xml = require "util.xml".parse;

    11 

    11 

    12 local _ENV = nil;

    12 local _ENV = nil;

    13 

    14 

    14 local function trim_xml(stanza)

    15 local function trim_xml(stanza)

    15 	for i=#stanza,1,-1 do

    16 	for i=#stanza,1,-1 do

    16 		local child = stanza[i];

    17 		local child = stanza[i];

    17 		if child.name then

    18 		if child.name then