From: Ian Macdonald <ian@...>
Date: 2002-05-08T00:58:07+09:00
Subject: Re: RegExp zero-width negative lookahead

On Wed 08 May 2002 at 00:26:13 +0900, nobu.nokada@softhome.net wrote:

> Already pointed out the reason, however you really want look
> behind?
> 
> "xxoxxxo xx" =~ /(?<!x)ox+o(?!x)/      #=> nil (with Oniguruma)

I'm used to that in Perl, but I've tried this in Ruby before and found
that it's not supported in either 1.6.7 or the latest 1.7.2 snapshot.

Is this available in an external library?

Ian
-- 
Ian Macdonald               | Life is having a mother-in-law that sucks
ian@caliban.org             | and a wife that don't.   -- Rodney
                            | Dangerfield 
                            | 
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