From: Steve Klabnik <steve@...>
Date: 2011-06-01T02:19:46+09:00
Subject: Re: multiple classes question

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This is known as the strategy pattern:
http://en.wikipedia.org/wiki/Strategy_pattern

Googling around for 'ruby strategy pattern' turns up some interesting
things, like this: http://tangleofwire.net/the-strategy-pattern-in-ruby

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