--- Prosody IM v0.4
+-- Prosody IM
-- Copyright (C) 2008-2009 Matthew Wild
-- Copyright (C) 2008-2009 Waqas Hussain
--
local print = print;
local unpack = unpack;
local s_gsub = string.gsub;
+local s_char = string.char;
+local s_find = string.find;
local os = os;
local do_pretty_printing = not os.getenv("WINDIR");
-local getstyle, getstring = require "util.termcolours".getstyle, require "util.termcolours".getstring;
-
-local log = require "util.logger".init("stanza");
+local getstyle, getstring;
+if do_pretty_printing then
+ local ok, termcolours = pcall(require, "util.termcolours");
+ if ok then
+ getstyle, getstring = termcolours.getstyle, termcolours.getstring;
+ else
+ do_pretty_printing = nil;
+ end
+end
module "stanza"
-stanza_mt = {};
+stanza_mt = { __type = "stanza" };
stanza_mt.__index = stanza_mt;
function stanza(name, attr)
return self;
end
+function stanza_mt:get_child(name, xmlns)
+ for _, child in ipairs(self.tags) do
+ if (not name or child.name == name)
+ and ((not xmlns and self.attr.xmlns == child.attr.xmlns)
+ or child.attr.xmlns == xmlns) then
+
+ return child;
+ end
+ end
+end
+
function stanza_mt:child_with_name(name)
for _, child in ipairs(self.tags) do
if child.name == name then return child; end
end
+local xml_escape
do
- local xml_entities = { ["'"] = "'", ["\""] = """, ["<"] = "<", [">"] = ">", ["&"] = "&" };
- function xml_escape(s) return s_gsub(s, "['&<>\"]", xml_entities); end
+ local escape_table = { ["'"] = "'", ["\""] = """, ["<"] = "<", [">"] = ">", ["&"] = "&" };
+ function xml_escape(str) return (s_gsub(str, "['&<>\"]", escape_table)); end
+ _M.xml_escape = xml_escape;
end
-local xml_escape = xml_escape;
-
-local function dostring(t, buf, self, xml_escape)
- local nsid, ns, attrk = 0;
- t_insert(buf, "<");
- t_insert(buf, t.name);
- for k, v in pairs(t.attr) do if type(k) == "string" then
- t_insert(buf, " ");
- ns, attrk = s_match(k, "^([^|]+)|(.+)$");
- if ns then
- nsid = (nsid or -1) + 1;
- t_insert(buf, "xmlns:ns"..nsid);
- t_insert(buf, "='");
- t_insert(buf, (xml_escape(tostring(ns))));
- t_insert(buf, "' ");
- t_insert(buf, "ns"..nsid..":"..attrk);
- else
- t_insert(buf, k);
+local function _dostring(t, buf, self, xml_escape, parentns)
+ local nsid = 0;
+ local name = t.name
+ t_insert(buf, "<"..name);
+ for k, v in pairs(t.attr) do
+ if s_find(k, "\1", 1, true) then
+ local ns, attrk = s_match(k, "^([^\1]*)\1?(.*)$");
+ nsid = nsid + 1;
+ t_insert(buf, " xmlns:ns"..nsid.."='"..xml_escape(ns).."' ".."ns"..nsid..":"..attrk.."='"..xml_escape(v).."'");
+ elseif not(k == "xmlns" and v == parentns) then
+ t_insert(buf, " "..k.."='"..xml_escape(v).."'");
end
- t_insert(buf, "='");
- t_insert(buf, (xml_escape(tostring(v))));
- t_insert(buf, "'");
- end end
- t_insert(buf, ">");
- for n, child in ipairs(t) do
- if child.name then
- self(child, buf, self, xml_escape);
- else
- t_insert(buf, (xml_escape(child)));
+ end
+ local len = #t;
+ if len == 0 then
+ t_insert(buf, "/>");
+ else
+ t_insert(buf, ">");
+ for n=1,len do
+ local child = t[n];
+ if child.name then
+ self(child, buf, self, xml_escape, t.attr.xmlns);
+ else
+ t_insert(buf, xml_escape(child));
+ end
end
+ t_insert(buf, "</"..name..">");
end
- t_insert(buf, "</");
- t_insert(buf, t.name);
- t_insert(buf, ">");
end
-
function stanza_mt.__tostring(t)
local buf = {};
- dostring(t, buf, dostring, xml_escape);
+ _dostring(t, buf, _dostring, xml_escape, nil);
return t_concat(buf);
end
-
function stanza_mt.top_tag(t)
local attr_string = "";
if t.attr then
return s_format("<%s%s>", t.name, attr_string);
end
+function stanza_mt.get_text(t)
+ if #t.tags == 0 then
+ return t_concat(t);
+ end
+end
+
function stanza_mt.__add(s1, s2)
return s1:add_direct_child(s2);
end
do
- local id = 0;
- function new_id()
- id = id + 1;
- return "lx"..id;
- end
+ local id = 0;
+ function new_id()
+ id = id + 1;
+ return "lx"..id;
+ end
end
function preserialize(stanza)
if stanza then
local attr = stanza.attr;
for i=1,#attr do attr[i] = nil; end
+ local attrx = {};
+ for att in pairs(attr) do
+ if s_find(att, "|", 1, true) and not s_find(k, "\1", 1, true) then
+ local ns,na = s_match(k, "^([^|]+)|(.+)$");
+ attrx[ns.."\1"..na] = attr[att];
+ attr[att] = nil;
+ end
+ end
+ for a,v in pairs(attrx) do
+ attr[x] = v;
+ end
setmetatable(stanza, stanza_mt);
for _, child in ipairs(stanza) do
if type(child) == "table" then
end
function clone(stanza)
- local lookup_table = {};
- local function _copy(object)
- if type(object) ~= "table" then
- return object;
- elseif lookup_table[object] then
- return lookup_table[object];
- end
- local new_table = {};
- lookup_table[object] = new_table;
- for index, value in pairs(object) do
- new_table[_copy(index)] = _copy(value);
- end
- return setmetatable(new_table, getmetatable(object));
- end
- return _copy(stanza)
+ local lookup_table = {};
+ local function _copy(object)
+ if type(object) ~= "table" then
+ return object;
+ elseif lookup_table[object] then
+ return lookup_table[object];
+ end
+ local new_table = {};
+ lookup_table[object] = new_table;
+ for index, value in pairs(object) do
+ new_table[_copy(index)] = _copy(value);
+ end
+ return setmetatable(new_table, getmetatable(object));
+ end
+
+ return _copy(stanza)
end
function message(attr, body)