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Re: DATATYPE("abc")=string? note

From: Eric Prud'hommeaux <eric@w3.org>
Date: Wed, 16 Nov 2005 19:12:15 -0500
To: Dan Connolly <connolly@w3.org>
Cc: DAWG public list <public-rdf-dawg@w3.org>
Message-ID: <20051117001215.GQ8297@w3.org>
On Wed, Nov 16, 2005 at 05:36:45PM -0500, Dan Connolly wrote:
> On Nov 15, 2005, at 4:27 PM, Eric Prud'hommeaux wrote:
> 
> >Persuant to
> >2005-11-15T15:28:13Z <DanC_lap> PROPOSED: to publish 1.538 +
> >                     EBV/valueTesting note, plus
> >		     rdfs:Datatype/DATATYPE change in table,
> >                     DATATYPE("abc")=string? note, plus, we hope,
> >		     edited changelog by DanC
> >I've updated the DATATYPE function definition and appended the
> ><issue/> below:
> >
> 
> this looks quite good... one nit, to show I read it...

i trust you...
...now

> >[[
> >rdfs:Datatype   datatype (rdf:literal arg)
> >
> >If arg is a typed literal, as defined in Resource Description
> >Framework (RDF): Concepts and Abstract Syntax [CONCEPTS] Section 6.5
> >"RDF Literals", datatype returns the datatype URI of arg. It produces
> >a type error if arg is an untyped literal.
> >
> ><issue>
> >  A literal is a Unicode string,
> 
> I think you mean plain literal.

yup, fixed

> > which correlates to an
> >  xsd:string. There is some interest in changing the last sentence of
> >  the preceeding paragraph to
> >
> >    It produces a type error if arg has a language tag, and returns
> >    <xsd:string> if arg is an untyped literal without a language tag.
> >
> >  This would make "asdf" and "asdf"^^xsd:string indisguishable to
> >  standard SPARQL queries. Some data maintenance queries (those
> >  searching for untyped literals) would require extension functions,
> >  and all untyped literals with no language tag would follow RDF
> >  Semantics xsd:string entailment. Please send related comments to
> >  public-rdf-dawg@w3.org.
> ></issue>
> >]]
> >
> >Anyone have wording improvements?
> >

-- 
-eric

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Received on Thursday, 17 November 2005 00:12:19 GMT

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