- From: Ivan Herman <ivan@w3.org>
- Date: Fri, 10 Aug 2012 06:39:21 +0200
- To: Richard Cyganiak <richard@cyganiak.de>
- Cc: W3C RDF WG <public-rdf-wg@w3.org>
Works for me. Thx I. On Aug 9, 2012, at 22:05 , Richard Cyganiak wrote: > Hi Ivan, > > On 13 Jun 2012, at 11:22, Ivan Herman wrote: >> the current document does not say that the XMlLiteral and the HTML datatypes are optional. > > Well, technically speaking it was already there, but in a rather subtle way. I've now added a sentence to the introduction paragraph of the datatypes section [1]: > > [[ > The list of datatypes supported by an implementation is determined by its datatype map. > ]] > > The definition of datatype map [2] now reads in its entirety: > > [[ > A datatype map is an implementation-defined set of <IRI, datatype> pairs such that no IRI appears twice in the set and the IRI denotes the datatype. It can be seen as a function from IRIs to datatypes. > > If a datatype map contains the IRI http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral, then it must be paired with the datatype rdf:XMLLiteral. > > If a datatype map contains the IRI http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML, then it must be paired with the datatype rdf:HTML. > > If a datatype map contains an IRI of the form http://www.w3.org/2001/XMLSchema#xxx, then it must be paired with the RDF-compatible XSD type named xsd:xxx. > > Specifications that conform to RDF may impose additional constraints on the datatype map, for example, require support for certain datatypes. > ]] > > I think this makes clear that RDF Concepts, as such, does not require support for any datatypes. > > Best, > Richard > > > [1] http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-concepts/index.html#section-Datatypes > [2] http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-concepts/index.html#dfn-datatype-map > ---- Ivan Herman, W3C Semantic Web Activity Lead Home: http://www.w3.org/People/Ivan/ mobile: +31-641044153 FOAF: http://www.ivan-herman.net/foaf.rdf
Received on Friday, 10 August 2012 04:39:44 UTC