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Re: RDFa Syntax Document Ready for Review

From: Ivan Herman <ivan@w3.org>
Date: Mon, 24 Sep 2007 15:55:29 +0200
Message-ID: <46F7C1D1.8090302@w3.org>
To: Shane McCarron <shane@aptest.com>
CC: public-swd-wg@w3.org, RDFa <public-rdf-in-xhtml-tf@w3.org>


Few comments

- I wonder whether there isn't a problem in the new version of the
processing steps, though, via the introduction of the [current element
identifier]. The problem seems to be that the two actions, ie,
generating [current element identifier] and [current object resource]
will create two 'distinct' blank nodes when there should be only one.
Look at

<span rel="a:b" instanceof="q:r">

Step 1.4 will yield a blank node for [current element identifier],
because no @about, etc, are present.
Step 2.1 will also yield a blank node for [current object resource] for
similar reasons. There is no statement that this blank node should be
the same as [current element identifier]; in the logic of RDF this
should be a separate one.

Ie, what we get with the code above is

_:a rdf:type q:r.
<> a:b _:b.

Which is not what we want. Do I miss something?

- A minor issue: there is a copy paste issue, I guess, with step 1.4,
because it still says "Note that the final value of [current element
identifier] is an absolute IRI" which is not true for BNodes (and has
been changed for 2.1!)

This @instanceof is playing lots of tricks with us:-(


Shane McCarron wrote:
> As Ben indicated earlier, the RDFa in XHTML: Syntax document is ready
> for review.  Please read this in preparation for the face-to-face.
> http://www.w3.org/MarkUp/2007/ED-rdfa-syntax-20070921/
> We look forward to your feedback on this document as well.


Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
PGP Key: http://www.ivan-herman.net/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf

Received on Monday, 24 September 2007 13:55:21 UTC

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