Software / code / prosody
Changeset
626:cf1d26fd4d6f
Optimized stanza_mt.__tostring (called when doing tostring(stanza))
| author | Waqas Hussain <waqas20@gmail.com> |
|---|---|
| date | Wed, 10 Dec 2008 06:58:56 +0500 |
| parents | 610:d98106902f74 |
| children | 627:f0a4498ae996 |
| files | util/stanza.lua |
| diffstat | 1 files changed, 26 insertions(+), 11 deletions(-) [+] |
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--- a/util/stanza.lua Tue Dec 09 05:22:43 2008 +0500 +++ b/util/stanza.lua Wed Dec 10 06:58:56 2008 +0500 @@ -19,6 +19,7 @@ local t_insert = table.insert; +local t_concat = table.concat; local t_remove = table.remove; local s_format = string.format; local tostring = tostring; @@ -27,7 +28,7 @@ local ipairs = ipairs; local type = type; local next = next; -local print = print; +local print = print; local unpack = unpack; local s_gsub = string.gsub; local os = os; @@ -116,21 +117,35 @@ local xml_escape = xml_escape; -function stanza_mt.__tostring(t) - local children_text = ""; +local function dostring(t, buf, self) + t_insert(buf, "<"); + t_insert(buf, t.name); + if t.attr then + for k, v in pairs(t.attr) do if type(k) == "string" then + t_insert(buf, " "); + t_insert(buf, k); + t_insert(buf, "='"); + t_insert(buf, (xml_escape(tostring(v)))); + t_insert(buf, "'"); + end end + end + t_insert(buf, ">"); for n, child in ipairs(t) do - if type(child) == "string" then - children_text = children_text .. xml_escape(child); + if child.name then + self(child, buf, self); else - children_text = children_text .. tostring(child); + t_insert(buf, (xml_escape(child))); end end + t_insert(buf, "</"); + t_insert(buf, t.name); + t_insert(buf, ">"); +end - local attr_string = ""; - if t.attr then - for k, v in pairs(t.attr) do if type(k) == "string" then attr_string = attr_string .. s_format(" %s='%s'", k, xml_escape(tostring(v))); end end - end - return s_format("<%s%s>%s</%s>", t.name, attr_string, children_text, t.name); +function stanza_mt.__tostring(t) + local buf = {}; + dostring(t, buf, dostring); + return t_concat(buf); end function stanza_mt.top_tag(t)
