From: Gavin Kistner <gavin.kistner@...>
Date: 2006-10-21T07:18:48+09:00
Subject: Re: multi dim array?

From: Gijs Nijholt
>   def translate_to_braille(msg)

I think you want the String#tr method. It replaces each character in a
source string with its corresponding character in a replacment string:

  normal_alphabet = "abcdefghijklmnopqrstuvwxyz"
  rot13_alphabet =  "nopqrstuvwxyzabcdefghijklm"

  msg = "hello world!"
  puts msg.tr( normal_alphabet, rot13_alphabet) 
  #=> uryyb jbeyq!