Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 20 Sep 2001 14:15:57 +0100
From:      Nik Clayton <nik@freebsd.org>
To:        Josef Karthauser <joe@tao.org.uk>
Cc:        Chris Costello <chris@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: www/en/news news.xml newsflash.xsl press.xml press.xsl
Message-ID:  <20010920141557.F1162@clan.nothing-going-on.org>
In-Reply-To: <20010920135417.I52323@tao.org.uk>; from joe@tao.org.uk on Thu, Sep 20, 2001 at 01:54:17PM %2B0100
References:  <200109201143.f8KBhVk53054@freefall.freebsd.org> <20010920135417.I52323@tao.org.uk>

next in thread | previous in thread | raw e-mail | index | archive | help

--NyVXgNZ34wipDCDo
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Thu, Sep 20, 2001 at 01:54:17PM +0100, Josef Karthauser wrote:
> On Thu, Sep 20, 2001 at 04:43:31AM -0700, Chris Costello wrote:
> > chris       2001/09/20 04:43:31 PDT
> >   Modified files:
> >     en/news              news.xml newsflash.xsl press.xml=20
> >                          press.xsl=20
> >   Log:
> >   Implement the `cvs' namespace as first tested in the Status Reports
> >   section.
>=20
> What's http://www.FreeBSD.org/XML/CVS?  It doesn't appear to exist.

It doesn't need to.

XML namespaces are used to associate tokens to element prefixes.  I
might write

    <cvs:keyword xmlns:cvs=3D"http://foo.bar.com/">;

in one document, and=20

    <frob:keyword xmlns:frob=3D"http://foo.bar.com/">;

in another document.  To an XML processer, "<cvs:keyword>" and
"<frob:keyword>" are the same element -- although the prefixes ("cvs:"
and "frob:") differ, the two prefixes are tied to the same namespace.

The namespace is uniquely identified by the URI.  In this example, that
URI is "http://foo.bar.com/".

There's no requirement that the URI also be a URL (or a valid URL).  We
could just as easily write

    ... xmlns:cvs=3D"My unique namespace" ...

and as long as all the other documents use the string "My unique
namespace" in the declarations everything would be fine.

There's no standard for generating URIs, although many people use URLs.
Some of these URLs are active (i.e., they point at an actual document),
some aren't, like the ones Chris committed.

I'm talking to the CVS maintainers at the moment about trying to
propogate the use of the :keywords and :keyword elements.  I expect the
final URI will then be

    http://www.cvshome.org/xmlns/CVS/Keywords/

And we can change our docs appropriately as and when.

The benefit of doing this is that we then have a standard way to mark up
CVS keywords in any XML document, irrespective of the document's schema.
You will be able to write

    <cvs:keywords xmlns:cvs=3D"http://www.cvshome.org/xmlns/CVS/Keywords/">;
      <cvs:keyword name=3D"id">$Id$</cvs:keyword>
    </cvs:keywords>

XSL stylesheets can then be written that know what the "keywords" and
"keyword" elements in the namespace=20
"http://www.cvshome.org/xmlns/CVS/Keywords/" mean.

N
--=20
FreeBSD: The Power to Serve             http://www.freebsd.org/
FreeBSD Documentation Project           http://www.freebsd.org/docproj/

          --- 15B8 3FFC DDB4 34B0 AA5F  94B7 93A8 0764 2C37 E375 ---

--NyVXgNZ34wipDCDo
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (FreeBSD)
Comment: For info see http://www.gnupg.org

iEYEARECAAYFAjup7AwACgkQk6gHZCw343V3yQCcDVy3L3nOmx+n9t1foMDvhWzN
p/0AoJKiPKrsbF0zEz9mImc6EDj3hjPb
=I/hz
-----END PGP SIGNATURE-----

--NyVXgNZ34wipDCDo--

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20010920141557.F1162>