- From: Mark Birbeck <mark.birbeck@x-port.net>
- Date: Thu, 24 May 2007 17:23:33 +0100
- To: RDFa <public-rdf-in-xhtml-tf@w3.org>
Hi José,
> I agree with your proposal, but I was thinking more in depth about it
> and it seems to me that the RDFaCore spec is going to be something like
> the spec of some attributes without anymore.
> I mean, that, without the host language, you are not going to be able to
> provide "semantics" to the RDF-A attributes.
The idea is that RDFa-core still requires a host language--after all,
it's only a collection of attributes--but the question is whether the
host language provides any additional 'mappings', or not.
For example, I might define a really simple XML language that contains
only two elements, <a> and <b>, with <a> being the root element,
containing any number of occurrences of <b>. I could then add
RDFa-core to this language, and be able to produce mark-up like this:
<a>
<b
about="http://blah"
property="http://xmlns.com/foaf/0.1/name"
content="Mark"
/>
<b
about="http://blah"
property="http://xmlns.com/foaf/0.1/homepage"
resource="http://internet-apps.blogspot.com/"
/>
</a>
In my view, we should clearly define the processing rules for
RDFa-core, so that the attributes work in all situations--which as it
happens, we have pretty much already done. So the example above could
be abbreviated to this:
<a about="http://blah">
<b
property="http://xmlns.com/foaf/0.1/name"
content="Mark"
/>
<b
property="http://xmlns.com/foaf/0.1/homepage"
resource="http://internet-apps.blogspot.com/"
/>
</a>
Now, in my simple language, there are no other semantics, so RDFa-core
gives me everything. But that isn't the case with HTML 4 or XHTML 1.x.
Does that explain it better? Or have I missed your point?
Regards,
Mark
--
Mark Birbeck, formsPlayer
mark.birbeck@x-port.net | +44 (0) 20 7689 9232
http://www.formsPlayer.com | http://internet-apps.blogspot.com
standards. innovation.
Received on Thursday, 24 May 2007 16:23:54 UTC