A module that maps between Lua and XML without much ado.
- Version 1.8.0 (Lua 5.2), 2013-06-10 by Gerald Franz, eludi.net
- Modified and extended 2015 by Bernhard Nortmann, https://github.com/n1tehawk/LuaXML – version 2.0.x, compatible with Lua 5.1 to 5.3 and LuaJIT.
LuaXML provides a minimal set of functions for processing XML data in Lua.
It offers a very simple and natural mapping between the XML format and Lua tables,
which allows one to work with and construct XML data just using Lua's normal
table access and iteration methods (e.g. ipairs()).
Substatements and tag content are represented as array data having numerical
keys (1 .. n), attributes use string keys, and tags the numerical index 0.
This representation makes sure that the structure of XML data is preserved
exactly across read/write cycles (eval(var:str())).
Since version 1.7, LuaXML consists of a well-optimized portable ISO-standard C file and a small Lua file. It is published under the same liberal licensing conditions as Lua itself (see below). It has been successfully compiled and used under Linux, various flavours of MS Windows, and MacOS X.
-- import the LuaXML module
local xml = require("LuaXML")
-- load XML data from file "test.xml" into local table xfile
local xfile = xml.load("test.xml")
-- search for substatement having the tag "scene"
local xscene = xfile:find("scene")
-- if this substatement is found...
if xscene ~= nil then
-- ...print it to screen
print(xscene)
-- print attribute id and first substatement
print( xscene.id, xscene[1] )
-- set attribute id
xscene["id"] = "newId"
end
-- create a new XML object and set its tag to "root"
local x = xml.new("root")
-- append a new subordinate XML object, set its tag to "child", and its content to 123
x:append("child")[1] = 123
print(x)See the LuaXML reference for a list of available functions and some usage examples. You might also look at test.lua and unittest.lua.
LuaXML is licensed under the terms of the MIT license reproduced below, the same as Lua itself. This means that LuaXML is free software and can be used for both academic and commercial purposes at absolutely no cost.
Copyright (C) 2007-2013 by Gerald Franz, eludi.net
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.