From: Dylan Markow <dylan@...>
Date: 2006-08-01T15:25:59+09:00
Subject: Detecting similar strings

Is there a way to take two strings, and decide if they are "similar." 
I'm creating a contact system in Rails, and am having a large problem 
with my users punching in duplicate entries with the last names spelled 
slightly different.

Is there a way to check if 2 strings are "identical" up to a certain 
percentage, such as only having 1 or 2 characters different?

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