var_dump

function var_dump(v,pad)
  pad = pad or ""
  local _t = type(v)
  if _t=="table" then
    local _k,_v
    local _r = ""
    for _k,_v in pairs(v) do
      _r = _r..pad.."  ".._k.."="..var_dump(_v,pad.."  ")..",\n"
    end
    if string.len(_r)>0 then
      return "{\n".._r..pad.."}"
    else
      return "{}"
    end
  elseif _t=="function" then
    return "function()"
  elseif _t=="string" then
    return "\""..v.."\""
  else
    return tostring(v)
  end
end