File

util.xml: Break reference to help the GC (fix #1711) LuaExpat uses a registry reference to track handlers, which makes it so that an upvalue like this creates a reference loop that keeps the parser and its handlers from being garbage collected. The same issue has affected util.xmppstream in the past. Code for checking: local xml_parse = require"util.xml".parse; for i = 1, 10000 do xml_parse("<root/>") end collectgarbage(); collectgarbage(); print(collectgarbage("count"), "KiB"); A future release of LuaExpat may fix the underlying issue there.

Structure of a stanza:


stanza {
	--- properties ---
	tags -- array of tags
	
	--- static methods ---
	iq(attrs) -- 
	
	--- read-only methods ---
	reply -- return new stanza with attributes of current stanza
	child_with_name(string name) -- return the first child of the current tag with the matching name
	
	--- write methods ---
	tag(name, sttrs) -- create a new child of the current tag, and set the child as current
	up() -- move to the parent of the current tag
	text(string) -- append a new text node to the current tag
}