Re: HTML+RDFa Issues (update)

On Thu, 2009-07-09 at 16:58 +0200, Julian Reschke wrote:
> If I had a solution that is compatible both with RDFa and full-URIs in
> @rel, I would already have proposed it. That's why I've been
> complaining for so long: I think the use of CURIEs instead of
> safe-CURIEs in @rel is a big problem. (It's ok in new attributes, but
> problematic in @rel/rev).

Safe CURIEs are important in @about/@resource because those attributes
are primarily intended for URIs. The @rel attribute was not previously
used for URIs, so no disambiguation mechanism was needed.

Yes, @rel in *Atom* is a URI, but no previous recommendations for HTML
or XHTML have recommended URIs in @rel, and the current HTML5 draft
doesn't either. Nor am I aware of any widely non-W3C specifications that
use URIs in @rel. Google's rel=canonical and rel=nofollow are simple
tokens. Pingback uses a simple token, and so do microformats. So I'm not
sure where these pre-existing uses of URIs in @rel are supposed to be
found.

If you're concerned by compatibility between HTML's @rel and Atom's
@rel, then don't be. They're completely incompatible. Atom's is not a
token separated list at all.

-- 
Toby A Inkster
<mailto:mail@tobyinkster.co.uk>
<http://tobyinkster.co.uk>

Received on Thursday, 9 July 2009 16:56:31 UTC