From: MenTaLguY <mental@...>
Date: 2007-04-13T01:42:50+09:00
Subject: Re: Slow ruby regexes

On Thu, 12 Apr 2007 19:55:09 +0900, Tim X <timx@nospam.dev.null> wrote:
> There is no point worrying about optimisation until you know there is a
> performance issue. For all you know, using the ruby RE engine for your
> task may fall well within your performance requirements.

This is very, very true -- don't optimize until you measure.  For the sake of the original poster, I want to underscore this point.  Chances are the Ruby regexp engine is way more than adequate for his purposes.

> The algorithm used by Perl et. al. may not be fast compared to the
> alternative, but it is relatively simple. As important to performance is correctness.

Perl's implementation is not very simple, however...

-mental