From: Benoit Daloze <eregontp@...>
Date: 2009-12-14T19:20:18+09:00
Subject: Re: problem with trivial regular expression

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We are quite according in our posts :)
This should be the Ruby way, very clear this time !

2009/12/14 Jes=FAs Gabriel y Gal=E1n <jgabrielygalan@gmail.com>

> On Mon, Dec 14, 2009 at 11:06 AM, David Villa <villa.hxc@gmail.com> wrote=
:
> >
> > hi ,sorry for my english.
> >
> > I am trying to remember the use of regular expressions and i have a
> > problem  with this  :
> >
> > i had a text with diferents strings, for example, url , like this :
> >
> > fajljsfjaosfohttp://www.marca.comjafosjodfahttp://www.as.comjfoaasjofja
> >
> > i want to extract the diferents url  but i try with :
> > /(http\:\/\/.+com)/ it returns a long match:
> >
> >
> >
> >   1. http://www.marca.comjafosjodfahttp://www.as.com
> >
> >
> > how can i group this in 2 diferents matchs? example :
> > 1- http://www.marca.com
> > 2- http://www.as.com
> >
> >
> > thanks
> > --
> > Posted via http://www.ruby-forum.com/.
> >
> >
>
> What you are missing is the non-greedy modifier (?) for the +:
>
> irb(main):001:0> s =3D "
> fajljsfjaosfohttp://www.marca.comjafosjodfahttp://www.as.comjfoaasjofja"
> =3D> "
> fajljsfjaosfohttp://www.marca.comjafosjodfahttp://www.as.comjfoaasjofja"
> irb(main):003:0> s.scan(/http\:\/\/.+?\.com/)
> =3D> ["http://www.marca.com", "http://www.as.com"]
>
> (I also added an extra \. before com, to match a ".com" and not "com"
> only). Then, scan helps you going through the full string retrieving
> matches.
>
> Hope this helps,
>
> Jesus.
>
>

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