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Re: RDF+Transformation = XHTML or is there sth like inverse GRDDL?

From: David Powell <djpowell@djpowell.net>
Date: Wed, 4 Jul 2007 00:42:36 +0100
Message-ID: <1947330415.20070704004236@djpowell.net>
To: Keith Alexander <k.j.w.alexander@gmail.com>
CC: "Andreas Langegger" <andreas.langegger@gmx.at>, semantic-web@w3.org, <al@jku.at>


Wednesday, July 4, 2007, 12:09:38 AM, Keith Alexander wrote:

> Dave, your treetriples page says: "Now with fixed GRDDL linkage via eRDF!"

> Can you explain what that means and how it works?

The namespace URI for treetriples is <http://djpowell.net/schemas/treetriples/1/>

This URI is also an XHTML page which uses eRDF in the HEAD to make the assertion:

S: <http://djpowell.net/schemas/treetriples/1/>
P: <http://www.w3.org/2003/g/data-view#namespaceTransformation>
O: <http://djpowell.net/schemas/treetriples/1/xslt/tt2rdfxml.xsl>

Therefore any GRDDL agents will know that treetriples documents with
the <http://djpowell.net/schemas/treetriples/1/> namespace can be
transformed into RDF/XML using that XSLT transform.

It is a bit like this example <http://www.w3.org/TR/grddl/#ns-bind>,
but rather than have RDF/XML as the namespace document, it has eRDF,
which is itself GRDDLable, and therefore does the same job.


The result is that GRDDL-enabled software such as:
<http://librdf.org/parse> can take a treetriples file such as
<http://djpowell.net/schemas/treetriples/1/examples/feed-t2.xml> and
parse it, without requiring any GRDDL annotations on the instance
document.

-- 
Dave
Received on Tuesday, 3 July 2007 23:43:02 UTC

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