From: Robert Klemme <shortcutter@...>
Date: 2008-03-05T02:59:54+09:00
Subject: Re: extract information from a large text

On 04.03.2008 16:04, phoenix wrote:
> I 'm new to ruby.I want to extract some useful information from a web
> page to generate a RSS feeds.My first instinct is to provide a regular
> expression like /sometext(.+?)sometext/, the problem is I can only get
> the first match to this regex, how can I iterate over the multiple
> matches?

String#scan.

> And further more, this kind of naive solution, is it too slow to
> search over a very large text?Because the performance requirement is
> high.Is there a better way to do this?

Try it out.  Also Hpricot like Kristian suggested.

Cheers

	robert