require("lib\\textutils")
tableIO = {}

function tableIO.load(fileName, tableVar)
  local file = io.open(fileName,"r")
  if file ~= nil then
    local data = file:read("*a")
    file:close()
    local tData = textutils.unserialize(data)
    if tableVar and type(tableVar) == "table" then
      tableVar = tData
    else
      return tData
    end
  else
    error("file not found")
  end
end

function tableIO.save(fileName,tableVar)
  if tableVar and type(tableVar) == "table" and fileName and type(fileName) == "string" then
    local dataString = textutils.serialize(tableVar)
    local file = io.open(fileName,"w")
    file:write(dataString)
    file:close()
    return true
  else
    error("Expected string,table got "..type(fileName)..","..type(tableVar))
  end
end