From: ptkwt@... (Phil Tomson)
Date: 2005-08-21T03:11:16+09:00
Subject: Re: object pattern matching

In article <43076BDE.2070103@neurogami.com>,
James Britt  <james_b@neurogami.com> wrote:
>Ara.T.Howard wrote:
>> On Sun, 21 Aug 2005, James Britt wrote:
>> 
>>> ...
>>>
>>> Isn't there a Ruby project that allows one to run regexen over object 
>>> hierarchies?
>> 
>> 
>> dunno...  i seem to recall something too but searching the raa didn't 
>> bring up
>> any hits?
>> 
>
>I was selling some folks on Ruby recently, and mentioned this project, 
>and I swore I had saved off the initial announcement because it struck 
>me as one of those things that did solve any immediate problems but 
>seemed so slick that I knew it would come in handy.
>
>
>Now I can't find it. :(
>
>

I think you're looking for Reg:

http://rubyforge.org/projects/reg/

Reg is a library for pattern matching in ruby data structures. Reg 
provides Regexp-like match and match-and-replace for all data structures 
(particularly Arrays, Objects, and Hashes), not just Strings.

Phil