LIP.lua

--[[
    Copyright (c) 2012 Carreras Nicolas

    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.

   Moidified to work with OpenComputers

--]]
--- Lua INI Parser.
-- It has never been that simple to use INI files with Lua.
--@author Dynodzzo

local LIP = {};

--- Returns a table containing all the data from the INI file.
--@param fileName The name of the INI file to parse. [string]
--@return The table containing all data from the INI file. [table]
function LIP.load(fileName)
   assert(type(fileName) == 'string', 'Parameter "fileName" must be a string.');
   local file = assert(io.open(fileName, 'r'), 'Error loading file : ' .. fileName);
   local data = {};
   local section;
   for line in file:lines() do
      local tempSection = line:match('^%[([^%[%]]+)%]$');
      if(tempSection)then
         section = tonumber(tempSection) and tonumber(tempSection) or tempSection;
         data[section] = data[section] or {};
      end
      local param, value = line:match('^([%w|_]+)%s-=%s-(.+)$');
      if(param and value ~= nil)then
         if(tonumber(value))then
            value = tonumber(value);
         elseif(value == 'true')then
            value = true;
         elseif(value == 'false')then
            value = false;
         end
         if(tonumber(param))then
            param = tonumber(param);
         end
         data[section][param] = value;
      end
   end
   file:close();
   return data;
end

--- Saves all the data from a table to an INI file.
--@param fileName The name of the INI file to fill. [string]
--@param data The table containing all the data to store. [table]
function LIP.save(fileName, data)
   assert(type(fileName) == 'string', 'Parameter "fileName" must be a string.');
   assert(type(data) == 'table', 'Parameter "data" must be a table.');
   local file = assert(io.open(fileName, 'wb'), 'Error loading file :' .. fileName);
   local contents = '';
   for section, param in pairs(data) do
      contents = contents .. ('[%s]\n'):format(section);
      for key, value in pairs(param) do
         contents = contents .. ('%s=%s\n'):format(key, tostring(value));
      end
      contents = contents .. '\n';
   end
   file:write(contents);
   file:close();
   end

return LIP;