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—I still have local working copies of what I think should be in > /ns/sparql. > > Thanks, > Greg > > [1] https://www.w3.org/ns/sparql
Received on Saturday, 2 December 2017 00:05:53 UTC