Demo of menu.lua library

--[[
    This is a demonstration of the use ofthe menu library at:
    https://pastebin.com/BhjbYsw4

]]
function main()
    local menu = require("menu")
    local prompt = "Choose your option:"
    --[[ table of options. The first choice will be cut down to size,
         the 11th exceeds permissible views on a turtle so will not
         appear, but will appear on a computer, which can show 16 options
      ]]
    local options = {"First choice which has been made into a very long string",
                    "Second choice", "Third choice", "Fourth choice",
                    "Fifth choice", "Sixth choice","Seventh choice", "Eighth choice",
                    "Ninth choice", "Tenth choice","This choice won't show on a turtle"}
    -- show the menu to get user input
    local choice = menu.new(prompt, options)
    if choice == nil then
        print ("You chose to cancel the menu")
    else
        print("You chose option no "..choice..": "..options[choice])
    end
    sleep(3)
    prompt = "which direction do you want to go?"
    options = {"North", "East", "South", "West"}
    choice = menu.new(prompt, options)
    if choice == nil then
        print ("You chose to stay where you are")
    else
        print("Great! We are heading "..options[choice])
    end

end

main()