From: Robert Dober <robert.dober@...>
Date: 2008-02-03T07:07:57+09:00
Subject: Re: Extracting vowels and consonants using regular expression

>
> "cor4ey ha2ines".scan(/[a-z]/i).join.each_char.partition { |x| "aeiouAEIOU"[x] }
and some golfing

                    { |x| /[aeiou]/i =~ x }

R.