From: Dave Burt <dave@...>
Date: 2006-04-24T01:20:58+09:00
Subject: Re: [QUIZ][SOLUTION] Text Munger #76

My version features an un-munging mode and the use of procs and blocks
to keep DRY. It won't shuffle letters, but it will leave numbers and
underscores alone, too.

http://www.dave.burt.id.au/ruby/text_munger.rb