Jena uses
jsonld-java for JSON-LD 1.0
titanium-json-ld for JSON-LD 1.1.
(The default is JSON-LD 1.0.)
jsonld-java lowercases
titanium-json-ld does not.
Is it an option for jsonld-java and jena just does not set it?
Please confirm: The graph are isomorphic. c.f. bnodes.
FWIW:
RDFParser has options for lowercase, canonical (such as "en-GB") or "as
is" for ingesting RDF.
Andy
On 04/03/2022 04:23, Holger Knublauch wrote:
The JSON-LD writer converts language tags to lower-case, e.g. "en-US"
becomes "en-us".
The code is in JsonLdApi:L664 and I guess it follows the recommendation
https://www.w3.org/TR/json-ld-api/#h-note-17
And the RDF 1.1 spec itself states that the value space of language tags
is lower case.
But syntactically that is a MAY and it means that RDF graphs cannot be
correctly round-tripped via JSON-LD.
>
Could there be a flag to switch this off? The other serializations also
do preserve the casing AFAIK, and when you add a triple to a Jena Graph
also no such transformations are taking place.
Thanks
Holger
