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Re: Mini comment on concepts

From: Ivan Herman <ivan@w3.org>
Date: Fri, 10 Aug 2012 06:39:21 +0200
Cc: W3C RDF WG <public-rdf-wg@w3.org>
Message-Id: <DBCFAE74-5643-4952-918E-70665EC9E32C@w3.org>
To: Richard Cyganiak <richard@cyganiak.de>
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

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