diff options
Diffstat (limited to 'util/stanza.lua')
| -rw-r--r-- | util/stanza.lua | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/util/stanza.lua b/util/stanza.lua index 1c1cab0e..5bc15609 100644 --- a/util/stanza.lua +++ b/util/stanza.lua @@ -12,9 +12,10 @@ local t_concat = table.concat; local t_remove = table.remove; local t_concat = table.concat; local s_format = string.format; -local s_match = string.match; +local s_match = string.match; local tostring = tostring; local setmetatable = setmetatable; +local getmetatable = getmetatable; local pairs = pairs; local ipairs = ipairs; local type = type; @@ -215,6 +216,24 @@ function deserialize(stanza) return stanza; 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) +end + function message(attr, body) if not body then return stanza("message", attr); |