Re: type coercion question

There's no way to do this in JSON-LD.

   - The first value is a JSON integer, which I think will come out as
   xsd:int. But a very large one will probably be cast to xsd:float
   - All other values are strings: JSON has no datatypes for URL or
   datetime.

You're asking to leverage regexes to attach appropriate datatypes to
literals. I've only seen this in Perl:

   - https://metacpan.org/pod/RDF::TrineX::Parser::Pretdsl
   - https://metacpan.org/pod/RDF::Trine::Parser::ShorthandRDF
   - https://lists.w3.org/Archives/Public/semantic-web/2012Aug/0053.html

We're discussing similar stuff for YAML-LD, see
https://github.com/json-ld/yaml-ld/issues/83

On Thu, Nov 17, 2022 at 5:24 AM Paul Tyson <phtyson@sbcglobal.net> wrote:

> I have a property that can take any type of RDF term as a value.
>
> {
>      "@context": {
>      "ex": "http://example.org/ns/",
>      },
>      "ex:thing1": {"ex:foo": 1},
>      "ex:thing2": {"ex:foo": "a string"},
>      "ex:thing3": {"ex:foo": "http://example.org/yugo"}
>      "ex:thing4": {"ex:foo": "2022-11-16T21:04:41"}
> }
>
> Is there any way to construct the context to make this come out in RDF
> like:
>
> _:b0 <http://example.org/ns/thing1> _:b1 .
> _:b0 <http://example.org/ns/thing2> _:b2 .
> _:b0 <http://example.org/ns/thing3> _:b3 .
> _:b0 <http://example.org/ns/thing4> _:b4 .
> _:b1 <http://example.org/ns/foo>
> "1"^^<http://www.w3.org/2001/XMLSchema#integer> .
> _:b2 <http://example.org/ns/foo> "a string" .
> _:b3 <http://example.org/ns/foo> <http://example.org/yugo> .
> _:b4 <http://example.org/ns/foo>
> "2022-11-16T21:04:41"^^<http://www.w3.org/2001/XMLSchema#dateTime> .
>
> Thanks and regards,
> --Paul
>
>
>