Simple implementation of the "A programming language is any set of rules that converts strings, or graphical program elements in the case of visual programming languages, to various kinds of machine code output." (abbreviated Programming Language or APLIAFCLDTCITAMPAC) programming language.

APLIAFCLDTCITAMPAC.lua

valid_string = 'A programming language is any set of rules that converts strings, or graphical program elements in the case of visual programming languages, to various kinds of machine code output.'

function file_exists(file)
    local f = io.open(file, 'rb')
    if f then f:close() end
    return f ~= nil
end

function parse(command)
    if command == valid_string then
        print(valid_string)
    else
        print(arg[0] .. ": !: the only valid first 181 string is: " .. valid_string)
        os.exit(1)
    end
end

if file_exists(arg[2]) == true then
    io.input(arg[2])
    file = io.read(181)
    parse(file)
    io.close()
else
    print(arg[0] .. ": !: " .. arg[2] .. " refused to exist")
    os.exit(1)
end