Refactor layouts with JSON-LD Framing

[saumier]

Reported a bug in JSON-LD framing Ruby library. Greg Kellogg, the developer of all the Ruby implementations of RDF libraries (SPARQL, SHACL, JSON-LD) has confirmed the issue and is willing to work on fixing in soonish.

ruby-rdf/json-ld#58

[saumier]

Exchange with Greg Kellogg - Apr 25, 2023

"I've looked at the code, and IIRC, the @annotation implementation for flattening and framing is fairly unexplored, and will require some more investigation. Your use case should be supported but it is missing tests and may take some time to explore.

Note, as said above, that RDF-star is pretty exerimental, and the semantics are still being worked out, and the annotation property may change or even go away, depending on how standards efforts develop. I'd caution you against depending on it for any product use before standards work progresses in RDF-star, and JSON-LD-star is updated to consider this change, and subsequently this implementation.

That said, the use of @annotation is intended to work in this gem, and missing functionality should be implemented, but it will be more than a simple fix, I'm afraid."

[saumier]

Note: Greg Kellog is the main editor of the proposed JSON-LD star standard - https://json-ld.github.io/json-ld-star/ published April 12, 2023.

[saumier]

Note: The RDF Star working group is chaired by Adrian Gschwend (Zazuko), Ora Lassila(Amazon)

[saumier]

The preview layouts need to be refactored to avoid the need of JSON-LD-Star Framing which is not yet supported and the area of JSON-LD-Star Framing is not yet described in any standards recommendation.