From: come <come.news@...>
Date: 2007-09-08T18:25:04+09:00
Subject: Re: compatibility in regexps between perl and ruby

Hi,

You are right: the zerowidth lookbehind isn't still implemented in
Ruby 1.8. We have to wait for the new engine "oniguruma", and the 1.9
version.

You can install oniguruma as a gem in Ruby 1.8.

Come

On 8 sep, 11:10, Tammo Tjarks <ta...@tammo-tjarks.de> wrote:
> Hello,
> I try to translate some perl to ruby and assumed so far that the regexps are
> compatible. But it seems that there are some only available in perl.
> Is there something comparable to
> (?<!...)
> also in ruby (is a zerowidth lookbehind, so
> /(?<!test)moin/ would only match moin if no test preceeds.
>
> Regards,
> Tammo