- From: Misha Wolf <Misha.Wolf@reuters.com>
- Date: Wed, 21 Jun 2006 18:53:05 +0100
- To: www-tag@w3.org, public-rdf-in-xhtml-tf@w3.org, semantic-web@w3.org
Following on from my "CURIEs: A proposal" of June 2: http://lists.w3.org/Archives/Public/www-tag/2006Jun/0007.html here's an attempt to supply some data points. These reflect my own, flawed, understanding. Please help by correcting the ones that are wrong and providing the missing (or additional) data points. 7 Each language must specify: 7a the syntactic constraints (if any) on the prefix and suffix. XMLNS : NCNAME NewsML 2 : NCNameChar+ XHTML : ? SPARQL : ? RDF/XML : ? N3 : ? Turtle : ? 7b how CURIEs and URIs are distinguished, eg through dedicated attributes or through a special syntax. XMLNS : ? NewsML 2 : Dedicated attributes XHTML : Mix of dedicated attributes and special syntax ("[a:b]") for non-dedicated attributes SPARQL : ? RDF/XML : ? N3 : ? Turtle : ? 7c the mechanism for specifying the prefix-to-IRI mapping. The mechanism may use information provided out-of-band. XMLNS : xmlns attribute NewsML 2 : scheme element XHTML : xmlns attribute SPARQL : ? RDF/XML : ? N3 : ? Turtle : ? 7d whether and, if so, how the prefix and suffix are combined to form an IRI. XMLNS : Left to each language to specify NewsML 2 : For vocabularies managed by the IPTC: <vocabIRI> & "#_" & <code> For vocabularies not managed by the IPTC: Left to each vocabulary authority to specify XHTML : Plain concatenation SPARQL : ? RDF/XML : ? N3 : ? Turtle : ? 7e whether the prefix and suffix form a tuple or whether they are just a compact representation for an IRI. XMLNS : Tuple NewsML 2 : Tuple XHTML : Just a compact representation for an IRI SPARQL : ? RDF/XML : ? N3 : ? Turtle : ? 7f whether the IRI mapped to the prefix is required to be dereferenceable. XMLNS : Yes NewsML 2 : Yes XHTML : ? SPARQL : ? RDF/XML : ? N3 : ? Turtle : ? 7g whether the IRI built from the prefix and suffix (and, possibly, including also other building blocks) is required to be dereferenceable. XMLNS : Left to each language to specify NewsML 2 : For vocabularies managed by the IPTC: MUST For vocabularies not managed by the IPTC: SHOULD XHTML : ? SPARQL : ? RDF/XML : ? N3 : ? Turtle : ? 7h whether any fragment identifiers in these IRIs are required to be legal XML names. XMLNS : Outside the scope of the spec NewsML 2 : Yes XHTML : ? SPARQL : ? RDF/XML : ? N3 : ? Turtle : ? Misha ------------------- NewsML 2 resources ------------------------------ http://www.iptc.org | http://www.iptc.org/std-dev/NAR/1.0 http://www.iptc.org/std-dev | http://groups.yahoo.com/group/newsml-2 To find out more about Reuters visit www.about.reuters.com Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Reuters Ltd.
Received on Wednesday, 21 June 2006 17:54:02 UTC