use lua as cofiguration data

cocos2d-x Lua
#1

can use lua as cofiguation data in cocos2d-x?anyone haven do this?can give me some tutorials or source code?

#2

I used to use xml or json as config data.

#3

I used like below:

 local cfg
 local function LoadConfig()
    _,cfg = pcall(require, (APP_DOC_DIR or '')..'config')
    if type(cfg) ~= 'table' then cfg = {} end
 end

 local function SaveConfig()
    if not cfg then return end
    local f = assert(io.open((APP_DOC_DIR or '')..'config.lua', "w")) 
    f:write('module(..., package.seeall) \n')
    for k, v in pairs(cfg) do
        if string.sub(k,1,1) ~= '_' then
            local str = serialize(v)
            if str then 
                f:write(k.."="..str.."\n")
            end
        end
    end 
    f:close()
 end

 function CFG_SetParam(para1, value)
    cfg[para1] = value or 1
    SaveConfig()
 end

 function CFG_GetParam(para1)
    return cfg[para1] or 0
 end

LoadConfig()