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Re: IRI creation and encoding

From: Axel Polleres <axel.polleres@deri.org>
Date: Sat, 5 Jun 2010 00:49:49 +0300
Cc: "SPARQL Working Group" <public-rdf-dawg@w3.org>
Message-Id: <3B4FDC7A-1215-47D6-91FC-709427F52B89@deri.org>
To: "Andy Seaborne" <andy.seaborne@talis.com>
That means that IRI should also  appearing in a column in 
http://www.w3.org/2009/sparql/docs/query-1.1/rq25.xml#FunctionMapping
i.e., shouldn't IRI rather be mentioned in the casting/constructor functions in section 15.5?

best,
Axel

On 4 Jun 2010, at 20:04, Andy Seaborne wrote:

> http://www.w3.org/2009/sparql/docs/query-1.1/rq25.xml#func-iri
> 
>         Andy
> 
> On 04/06/2010 2:06 PM, Axel Polleres wrote:
> > I added Peter Ansell's question on the comments page.
> >
> > Before we send an official answer to that... In the current draft of
> > Constructor Functions
> > http://www.w3.org/TR/sparql11-query/#FunctionMapping
> > I indeed miss casting to IRI. I think I'd agree that we need this
> > direction of
> > conversion to IRIs.
> >
> > In RIF there is a predicate http://www.w3.org/TR/rif-dtb/#pred:iri-string
> > for that.
> >
> > Once we agree on that, the answer to the request should be clear (then
> > the desired behaviour would be doable with a subquery)
> >
> > best,
> > Axel
> >
> > Begin forwarded message:
> >
> >> *Resent-From: *public-rdf-dawg-comments@w3.org
> >> <mailto:public-rdf-dawg-comments@w3.org>
> >> *From: *"Peter Ansell" <ansell.peter@gmail.com
> >> <mailto:ansell.peter@gmail.com>>
> >> *Date: *4 June 2010 08:01:16 GMT+03:00
> >> *To: *<public-rdf-dawg-comments@w3.org
> >> <mailto:public-rdf-dawg-comments@w3.org>>
> >> *Subject: **IRI creation and encoding*
> >> *archived-at:
> >> *<http://www.w3.org/mid/AANLkTilYqYnjuntFjsa_8ufqWVqzYWBeqPOO2d5NOgG2@mail.gmail.com>
> >>
> >> Hi,
> >>
> >> I am not sure what the progress has been on the (very useful)
> >> extension to make it possible for SPARQL to create new URI/IRIs from
> >> literals/variables [1] but it would be nice if the discussion could
> >> also include something about a function for string transformation to
> >> encode strings so that the URIs are valid.
> >>
> >> For example it would be nice to be able to do something similar to the
> >> following pattern using a IRI/URI creation facility,
> >>
> >> CONSTRUCT
> >> { ?s <skos:prefLabel> ?label . ?s <myLibrary:hasAlternateURI>
> >> IRI("http://otherlibrary.example/"+example:percentEncode(?label)+"/lang/"+example:percentEncode(lang(?label))}
> >> WHERE
> >> { ?s <skos:prefLabel> ?label . }
> >>
> >> Cheers,
> >>
> >> Peter
> >>
> >> [1] http://www.w3.org/2009/sparql/wiki/Feature:IriBuiltIn
> >>
> >
> >
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Received on Friday, 4 June 2010 21:50:25 GMT

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