From: Simon Strandgaard <neoneye@...>
Date: 2006-01-17T13:59:41+09:00
Subject: Re: Question about regular expression

On 1/17/06, Eric Luo <eric.wenbl@gmail.com> wrote:
> I need to hack out an regular expression, which will match "SNPB" without
> matching "STR SNPB".
> Since ruby 1.8.2 or 1.8.4 don't support the  lookbehind feature. what's the
> workable regular expression
> for ruby version 1.8.2?

tests = %w{SNPB STR\ SNPB}
re = /(?<!STR )SNPB/
tests.map{|t| t.match(re) }

#=> [#<MatchData:0x65704>, nil]


ruby 1.8.2 (2004-11-03) [powerpc-darwin7.5.0]


--
Simon Strandgaard