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authorWaqas Hussain <waqas20@gmail.com>2009-08-02 14:35:03 +0500
committerWaqas Hussain <waqas20@gmail.com>2009-08-02 14:35:03 +0500
commit1016cb7d48acda978809300f77b6c3dba335efd8 (patch)
tree4cede08a21c84c5ce8014a0c4f397ce822f837da /tools/ejabberdsql2prosody.lua
parent4a38bcf39514e3a0fe8e08a1c4c2fd0136cd4d75 (diff)
downloadprosody-1016cb7d48acda978809300f77b6c3dba335efd8.tar.gz
prosody-1016cb7d48acda978809300f77b6c3dba335efd8.zip
ejabberdsql2prosody: Added an XML parser
Diffstat (limited to 'tools/ejabberdsql2prosody.lua')
-rw-r--r--tools/ejabberdsql2prosody.lua52
1 files changed, 52 insertions, 0 deletions
diff --git a/tools/ejabberdsql2prosody.lua b/tools/ejabberdsql2prosody.lua
index 5b975269..c9f8beb6 100644
--- a/tools/ejabberdsql2prosody.lua
+++ b/tools/ejabberdsql2prosody.lua
@@ -156,6 +156,58 @@ return readFile(filename);
------
end
+-- XML parser
+local parse_xml = (function()
+ local entity_map = setmetatable({
+ ["amp"] = "&";
+ ["gt"] = ">";
+ ["lt"] = "<";
+ ["apos"] = "'";
+ ["quot"] = "\"";
+ }, {__index = function(_, s)
+ if s:sub(1,1) == "#" then
+ if s:sub(2,2) == "x" then
+ return string.char(tonumber(s:sub(3), 16));
+ else
+ return string.char(tonumber(s:sub(2)));
+ end
+ end
+ end
+ });
+ local function xml_unescape(str)
+ return (str:gsub("&(.-);", entity_map));
+ end
+ local function parse_tag(s)
+ local name,sattr=(s):gmatch("([^%s]+)(.*)")();
+ local attr = {};
+ for a,b in (sattr):gmatch("([^=%s]+)=['\"]([^'\"]*)['\"]") do attr[a] = xml_unescape(b); end
+ return name, attr;
+ end
+ return function(xml)
+ local stanza = st.stanza("root");
+ local regexp = "<([^>]*)>([^<]*)";
+ for elem, text in xml:gmatch(regexp) do
+ if elem:sub(1,1) == "!" or elem:sub(1,1) == "?" then -- neglect comments and processing-instructions
+ elseif elem:sub(1,1) == "/" then -- end tag
+ elem = elem:sub(2);
+ stanza:up(); -- TODO check for start-end tag name match
+ elseif elem:sub(-1,-1) == "/" then -- empty tag
+ elem = elem:sub(1,-2);
+ local name,attr = parse_tag(elem);
+ stanza:tag(name, attr):up();
+ else -- start tag
+ local name,attr = parse_tag(elem);
+ stanza:tag(name, attr);
+ end
+ if #text ~= 0 then -- text
+ stanza:text(xml_unescape(text));
+ end
+ end
+ return stanza.tags[1];
+ end
+end)();
+-- end of XML parser
+
local arg, host = ...;
local help = "/? -? ? /h -h /help -help --help";
if not(arg and host) or help:find(arg, 1, true) then