todo

local todo = {}
local saveFile = "todo.txt"

function save()
    local file = fs.open(saveFile,"w")
    file.write(textutils.serialize(todo))
    file.close()
end

function load()
    local file = fs.open(saveFile,"r")
    local data = file.readAll()
    file.close()
    todo = textutils.unserialize(data)
end

function list()
    for k,v in pairs(todo) do
        print(tostring(k) .. ": " .. tostring(v))
    end
end


load()
list()

table.insert(todo,2, "New 2")