From: Aaron Patterson <aaron@...>
Date: 2010-08-12T09:41:46+09:00
Subject: Re: Nokogiri help

--zhXaljGHf11kAtnf
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Mon, Aug 09, 2010 at 01:02:33PM +0900, R.. Kumar 1.9.1 OSX wrote:
> Mike Dalessio wrote:
> > On Sun, Aug 8, 2010 at 11:35 AM, R.. Kumar 1.9.1 OSX=20
> > <sentinel1879@gmail.com
> >> wrote:
> >=20
> >=20
> > For advanced usage like capturing attribute values in a Nokogiri search=
,=20
> > you
> > should use Node#xpath:
> >=20
> >     doc =3D Nokogiri::HTML(open('http://www.reddit.com/r/programming/'))
> >     puts doc.xpath("//p[@class=3D'nextprev']/a/@href").inspect
> >     # =3D> [#<Nokogiri::XML::Attr:0x3fa59149a0cc name=3D"href" value=3D"
> > http://www.reddit.com/r/programming/?count=3D25&after=3Dt3_cygpc">]
>=20
> thanks a lot to both answers.
>=20
> 1) Is there any doc that has advanced info or examples, the tutorial had=
=20
> simple examples.

Nokogiri follows the XPath 1.0 spec.  That means any XPath knowledge you
gain can be used with Nokogiri.  I suggest starting here:

  http://www.w3schools.com/xpath/

Once you've mastered that, then I would go here:

  http://www.w3.org/TR/xpath/
 =20
> 2) Also, is Nokogiri the right tool for this job, or is Scrubyt more=20
> suitable.

Nokogiri will probably work well for you, but I am not an expert with
Scrubyt.  You may want to investigate.

--=20
Aaron Patterson
http://tenderlovemaking.com/

--zhXaljGHf11kAtnf
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (Darwin)

iQEcBAEBAgAGBQJMY0NEAAoJEJUxcLy0/6/GeDcH/R+k3Wk36QzuXoSR9DHw9SOK
r/xsRm/OTPL7Icn7KcXYIWbpYIpT0RXiW1120ts14C7/9fVa6QDwJqipwBh7+J+u
yCMnUsRFUQLjjvzHA+coWg9nt4nSelTEs2azujqiO2N+jvNRNE7RCgtclohLEPpI
EslWndSSyVod38zVLesgTF09qJ3wqn7EQQvoQ6/RnWP1YwfGafLg0gKDPsH4fK7a
44anGvjAjwuBwCamvsdmVUetqq7meZzLg/QrPIEpdqiHwfP0tPk0okAK6ahhojkT
aH16fIRnpJ7Q3PtfMbELbCLW8rUuiAeygihiFNw8nbaqsE13KEl4OeB2Rk4RCVY=
=o3f4
-----END PGP SIGNATURE-----

--zhXaljGHf11kAtnf--