X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;ds=sidebyside;f=util%2Fstanza.lua;h=7c21421083d57daafbcf2ad807c3d7b7166c36a5;hb=686b9bc986730e2265700d1fcbb4df5b701565fd;hp=1449f707e1b7854806303e71c391541802d62e24;hpb=e61b053f6807376d1ef61b662f1b55a9df09540f;p=prosody.git

diff --git a/util/stanza.lua b/util/stanza.lua
index 1449f707..7c214210 100644
--- a/util/stanza.lua
+++ b/util/stanza.lua
@@ -18,6 +18,7 @@ local pairs         =         pairs;
 local ipairs        =        ipairs;
 local type          =          type;
 local s_gsub        =   string.gsub;
+local s_sub         =    string.sub;
 local s_find        =   string.find;
 local os            =            os;
 
@@ -133,14 +134,14 @@ function stanza_mt:children()
 end
 
 function stanza_mt:childtags(name, xmlns)
-	xmlns = xmlns or self.attr.xmlns;
 	local tags = self.tags;
 	local start_i, max_i = 1, #tags;
 	return function ()
 		for i = start_i, max_i do
 			local v = tags[i];
 			if (not name or v.name == name)
-			and (not xmlns or xmlns == v.attr.xmlns) then
+			and ((not xmlns and self.attr.xmlns == v.attr.xmlns)
+				or v.attr.xmlns == xmlns) then
 				start_i = i+1;
 				return v;
 			end
@@ -153,7 +154,7 @@ function stanza_mt:maptags(callback)
 	local n_children, n_tags = #self, #tags;
 	
 	local i = 1;
-	while curr_tag <= n_tags do
+	while curr_tag <= n_tags and n_tags > 0 do
 		if self[i] == tags[curr_tag] then
 			local ret = callback(self[i]);
 			if ret == nil then
@@ -161,17 +162,44 @@ function stanza_mt:maptags(callback)
 				t_remove(tags, curr_tag);
 				n_children = n_children - 1;
 				n_tags = n_tags - 1;
+				i = i - 1;
+				curr_tag = curr_tag - 1;
 			else
 				self[i] = ret;
-				tags[i] = ret;
+				tags[curr_tag] = ret;
 			end
-			i = i + 1;
 			curr_tag = curr_tag + 1;
 		end
+		i = i + 1;
 	end
 	return self;
 end
 
+function stanza_mt:find(path)
+	local pos = 1;
+	local len = #path + 1;
+
+	repeat
+		local xmlns, name, text;
+		local char = s_sub(path, pos, pos);
+		if char == "@" then
+			return self.attr[s_sub(path, pos + 1)];
+		elseif char == "{" then
+			xmlns, pos = s_match(path, "^([^}]+)}()", pos + 1);
+		end
+		name, text, pos = s_match(path, "^([^@/#]*)([/#]?)()", pos);
+		name = name ~= "" and name or nil;
+		if pos == len then
+			if text == "#" then
+				return self:get_child_text(name, xmlns);
+			end
+			return self:get_child(name, xmlns);
+		end
+		self = self:get_child(name, xmlns);
+	until not self
+end
+
+
 local xml_escape
 do
 	local escape_table = { ["'"] = "&apos;", ["\""] = "&quot;", ["<"] = "&lt;", [">"] = "&gt;", ["&"] = "&amp;" };
@@ -237,7 +265,7 @@ function stanza_mt.get_error(stanza)
 	end
 	type = error_tag.attr.type;
 	
-	for child in error_tag:childtags() do
+	for _, child in ipairs(error_tag.tags) do
 		if child.attr.xmlns == xmlns_stanzas then
 			if not text and child.name == "text" then
 				text = child:get_text();