From: Eero Saynatkari <ruby-ml@...>
Date: 2006-10-03T11:23:58+09:00
Subject: Re: regular expressions

--rUztinBX/EQDJOOk
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On 2006.10.03 10:20, MonkeeSage wrote:
> Tom Allison wrote:
> > I'm only trying to get the one section that matched the Received header.
> > I should be able to do with with the statement
> > puts line if line =3D~ /Received/ .. line =3D~ /#{config['hostname']}/
> > At least that's what I'm believe I'm being led towards.
>=20
> In ruby .. is a range operator. If you want a grouped match, use parens
> and a backreference just like perl.
>=20
> $stdin.each { |line|
>   puts $1 if line =3D~ /^Received:(.+?)\s{4,}by #{config['hostname']}/
>   # prints " from mail.papa.smurf (mail.papa.smurf [127.0.0.1])"
> }

And you almost certainly want to Regexp.escape that interpolation.

--rUztinBX/EQDJOOk
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (FreeBSD)

iD8DBQFFIclJ7Nh7RM4TrhIRAt0/AJ4gLDEwvCVaxKDSuGBusa4oo0lrbQCg2z1z
NTvLyPtZ5FkmsKfjdM1wvOA=
=BxWl
-----END PGP SIGNATURE-----

--rUztinBX/EQDJOOk--