From: Robert Klemme <shortcutter@...>
Date: 2007-08-02T07:04:58+09:00
Subject: Re: Multiple matching with ()*

On 31.07.2007 17:18, Alessandro Re wrote:
> Thanks, this is an interesting solution!
> 
> On 7/31/07, Robert Klemme <shortcutter@googlemail.com> wrote:
>> 2007/7/31, Alessandro Re <akirosspower@gmail.com>:
>>> Mh well, to me it seems a normal regex processing (i mean, it *should*
>>> require only one instruction, since this pattern can be read with just
>>> one regex, even if ruby doesn't allow it... but it would be really
>>> bad).
>>> Anyway well, splitting it there are different ways to do it - thanks
>>> for your sudjestion.
>>> But if ruby make it possible with one call, i'd prefer to use it.
>> irb(main):006:0> s="x1A2B3C4Dz"
>> => "x1A2B3C4Dz"
>> irb(main):007:0> s.scan /x(\d\w)*z/
>> => [["4D"]]
>> irb(main):008:0> s.scan /x((?:\d\w)*?)z/
>> => [["1A2B3C4D"]]
>> irb(main):009:0> s.scan(/x((?:\d\w)*?)z/).map {|a| a[0].scan(/\d\w/)}
>> => [["1A", "2B", "3C", "4D"]]

Give special attention to my usage of the reluctant qualifier which is 
mandatory if your input contains multiple begin end pairs.

Kind regards

	robert


PS: please do not top post.