Program written in Lua made to emulate Unlamdba's S K I operators.

unlamdba_like_fib.lua

s =
(function(x)
  return function(y)
    return function(z)
      return x(z)(y(z))
    end
  end
end)

k =
(function(x)
  return function(y)
    return x
  end
end)

i =
(function(x)
  return x
end)

p = --Do to the way . in unlambda works, I had to curry the print value.
(function(x)
  return function(y)
    io.write(x)
    return y
  end
end)

r = p"\n"

--Warning: This programming will run forever unless terminated.
s(s(s(i)(i))(k(i)))(k(p"*"))(s(s(k(s))(s(k(s(k(s))))(s(s(k(s))(s(k(s(k(r))))(s(k(s(i)))(k))))(k))))(k(s(k(s))(k))))