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util.stanza: Add an is_stanza() function to check if an object is a stanza

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This commit is contained in:
Kim Alvefur 2016-11-28 07:30:21 +01:00
parent 1d21e033f3
commit 2d642bfb76
1 changed files with 6 additions and 0 deletions
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6
util/stanza.lua
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@ -14,6 +14,7 @@ local s_format = string.format;
local s_match = string.match;
local tostring = tostring;
local setmetatable = setmetatable;
local getmetatable = getmetatable;
local pairs = pairs;
local ipairs = ipairs;
local type = type;
@ -45,6 +46,10 @@ local function new_stanza(name, attr)
return setmetatable(stanza, stanza_mt);
end
local function is_stanza(s)
return getmetatable(s) == stanza_mt;
end
function stanza_mt:query(xmlns)
return self:tag("query", { xmlns = xmlns });
end
@ -417,6 +422,7 @@ end
return {
stanza_mt = stanza_mt;
stanza = new_stanza;
is_stanza = is_stanza;
new_id = new_id;
preserialize = preserialize;
deserialize = deserialize;