Re: Functions in N3 (was: Re: What Happened to the Semantic Web?)

Not SPARQL versions such as STRSTARTS though? One could argue that these
are distinct resources, and belong in the SPARQL namespace.

On Sat, Dec 2, 2017 at 1:03 PM, Eric Prud'hommeaux <eric@w3.org> wrote:

> * Jos De Roo <jos.deroo@agfa.com> [2017-12-02 12:36+0100]
> > +1
> > i.e. I would implement them and add them to
> > https://github.com/josd/eye/blob/master/eye-builtins.n3
> > well, at least try :-)
>
> is this basically IRIs and an RDF grammar for the operators?
> the functions already have IRIs from XPath and XML Schema.
>
>
> > Kind regards,
> > Jos
> >
> > Jos De Roo   | Agfa HealthCare
> > R&D engineer | Cognitive Computing Competence Center
> > http://josd.github.io/
> >
> > Agfa HealthCare NV, Moutstraat 100, B-9000 Gent, Belgium
> > http://www.agfa.com/healthcare
> >
> > -----Martynas Jusevi&#269;ius <martynas@atomgraph.com> wrote: -----
> >
> > > To: Gregory Williams <greg@evilfunhouse.com>
> > > From: Martynas Jusevi&#269;ius <martynas@atomgraph.com>
> > > Date: 12/02/2017 01:18AM
> > > Cc: Andreas Harth <andreas@harth.org>, "Sean B. Palmer"
> > > <sean@miscoranda.com>, SW-forum Web <semantic-web@w3.org>,
> > > public-lod <public-lod@w3.org>, www-archive <www-archive@w3.org>,
> > > Ivan Herman <ivan@w3.org>
> > > Subject: Re: Functions in N3 (was: Re: What Happened to the Semantic
> > > Web?)
> > >
> > > Gregory,
> > > are you still planning to upload the vocabularies?
> > > I have a use case for it :) To specify the function to apply in a
> > > FILTER. I'd much rather use a function URI than a label literal.
> > >
> > > Martynas
> > > On Fri, Oct 13, 2017 at 5:30 PM, Gregory Williams
> > > <greg@evilfunhouse.com> wrote:
> > > /cc Ivan Herman
> > >
> > >
> > >
> > > On Oct 13, 2017, at 8:14 AM, Andreas Harth <andreas@harth.org>
> > > wrote:
> > >
> > > >
> > >
> > > > The lack of URIs for SPARQL functions has irked me for a while.
> > >
> > > >
> > >
> > > > We have been using N3 as rule syntax in our Linked Data-Fu system,
> > >
> > > > and have found that the CWM builtins [1] are problematic.  Some
> > > really
> > >
> > > > useful functions are missing (such as isLiteral(), isURI,
> > > datatype()),
> > >
> > > > and some of the existing functions are underspecified concerning
> > > the
> > >
> > > > support for datatypes.
> > >
> > > >
> > >
> > > > SPARQL has a much more complete set of functions and it would be
> > > nice to
> > >
> > > > be able to use those in N3.  Defining a prefix for the SPARQL
> > > builtin
> > >
> > > > functions (and operators) should be easy.  I wonder why nobody has
> > > done
> > >
> > > > that already.
> > >
> > >
> > >
> > > During the SPARQL 1.1 WG, it was always my intention to define IRIs
> > > for all the built-in functions. We even set up a namespace for
> > > it[1]. Alas, it seems it was never properly populated, as BOUND is
> > > the only function with an assigned IRI. Maybe it would still be
> > > possible to get those all assigned&#8212;I still have local working
> copies
> > > of what I think should be in /ns/sparql.
> > >
> > >
> > >
> > > Thanks,
> > >
> > > Greg
> > >
> > >
> > >
> > > [1] https://www.w3.org/ns/sparql
> > >
> > >
> >
>
> --
> -ericP
>
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