From: dblack@...
Date: 2006-11-06T10:48:49+09:00
Subject: Re: Ugly code - suggestions?

HI --

On Mon, 6 Nov 2006, greg wrote:

> couple of ideas for you- didn't this out though
> nil.to_s #=> ""
> no need to re-scan a match if you can use $1, $2, etc

The reason is that you might have more than one ;\d+ sequence, and the
scan operation with captures will only give you the last one:

   >> p "abc;31;32;33".scan(/abc(;\d+)*/)
   => [[";33"]]

I don't know whether the named captures in oniguruma might help
here....


David

-- 
                   David A. Black | dblack@wobblini.net
Author of "Ruby for Rails"   [1] | Ruby/Rails training & consultancy [3]
DABlog (DAB's Weblog)        [2] | Co-director, Ruby Central, Inc.   [4]
[1] http://www.manning.com/black | [3] http://www.rubypowerandlight.com
[2] http://dablog.rubypal.com    | [4] http://www.rubycentral.org