From: "Michael W. Ryder" <_mwryder@...>
Date: 2008-11-20T10:41:17+09:00
Subject: Is there another method like .next?

I was looking for a way to iterate through the ascii values and was 
trying to get it to not go from "9" to "10" or "Z" to "AA".  Evidently 
the string method .next always returns digits for digits and letters for 
letters.  I could do something like:

a = "9"
b = ""
b << a[0].next => "["

but this seems overly complicated.  I have to initialize b or Ruby 
complains of an undefined local variable or method and other methods of 
string assignment return "91".