themaxhero

NimbleParsec Playground

Mix.install([
  {:nimble_parsec, "~> 1.0"}
])

My first ever try to make a LISP with

themaxhero

defmodule CeasarCipher do
  @lower Enum.to_list(?a..?z)
  @upper Enum.to_list(?A..?Z)

  defp map_within_range(c, range, shift) do
    if c in range do
      range
      |> Stream.cycle()
      |> Stream.drop(shift + (c - hd(range)))
      |> Stream.take(1)