From: Peter Hickman <peterhickman386@...>
Date: 2010-07-30T22:33:25+09:00
Subject: Re: how to find difference between two strings

One method, and I stress this is only one method, is the Levenshtein distance at

http://en.wikibooks.org/wiki/Algorithm_implementation/Strings/Levenshtein_distance#Ruby

and it has code, in ruby!