Updates for rdf:dirLangString

[afs]

https://www.w3.org/TR/rdf12-semantics/#datatypes
has the following text:

RDF processors are not required to recognize any datatype IRIs other than rdf:langString and xsd:string

This should be updated to include rdf:dirLangString.

[pfps]

Doesn't this change require a WG decision that rdf:dirLangString MUST be supported by all RDF processors?

[pfps]

Shouldn't there also be something about required recognized datatypes in RDF Concepts?

[afs]

Shouldn't there also be something about required recognized datatypes in RDF Concepts?

It looks to me like the concept "RDF processor" is one that is significant in RDF Semantics, where it is needed a base for semantic extensions.

RDF Concepts has one usage of the terminology, + one in an appendix, and both only in relation to recognized datatypes. It looks to me like summarized text copied from RDF Semantics.

RDF Concepts itself says RDF processors are not required to recognize datatype IRIs. Semantics 1.1 adds xsd:string and rdf:langString.

[pfps]

I note that RDF Concepts only says that the XSD datatypes are RECOMMENDED.

[afs]

It is not just use associated with "recognized"
(Title changed, PR #60 does not close this issue.)

These are the places that mention rdf:langString and need to have rdf:dirLangString.

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5. Simple Interpretations
Change Note

7. Literals and datatypes

7.1 D-interpretations
Semantic conditions for literals.

8. RDF Interpretations
RDF vocabulary

8.1 RDF entailment

9. RDFS Interpretations
RDFS semantic conditions.

A. Entailment rules (Informative)

F. Substantive changes since RDF 1.1

[afs]

Shouldn't there also be something about required recognized datatypes in RDF Concepts?

RDF Semantics does not refer to RDF Concepts. It has its own definition: "recognize"