From: Fred Phillips <fophillips@...>
Date: 2008-07-28T21:51:07+09:00
Subject: Re: Gsup with variable when replacing

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On Mon Jul 28 21:44:41 2008, Romain LOMBARDO wrote:
> Hi people,
>=20
> I'm trying to transform this kind of line :
> 123232321
> FOOFOOFOO
> ..
> 2431232
> BARBARBAR
>=20
> to
> <number>123232321</number>  (actually XML)
> <number>2431232</number>
> So I have coded this script
> File.open("D:/digisoft/1b.txt","r") do |f2|
>   while line =3D f2.gets
>        f3 =3D line.gsub!(/\d+$/,'<number>\1</number>')
>        puts f3
>   end
> end
>=20
> but Ruby doesn't seem to apraciate .. I search example and I found
> that variable as $1, \1, &$ could do this job but i can't get it
> works.
> How can I get the match of my regexp and add <number> blocks please ?
>=20
> thanks you
>=20

You=E2=80=99re missing the brackets around the \d+, like so:

f3 =3D line.gsub(/(\d+)$/,'<number>\1</number>')

Note that I am also using String#gsub not String#gsub! as that will
change your line variable also.

--=20
Fred O. Phillips
BBC7 7572 755F 83E0 3209  504A E4F7 874F 1545 9D41

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