Errata: N-Triples and N-Quads PN_CHARS_U

The productions for PN_CHARS_U are different between Turtle/TriG and
N-Triples/N-Quads - this is visible in blank node labels.

N-triples is supposed to be subset of Turtle but it include ":" in blank 
node labels via --

Turtle/TriG

[164s]  PN_CHARS_U  ::=   PN_CHARS_BASE | '_'

N-Triples/N-Quads:

[158s] PN_CHARS_U        ::=  PN_CHARS_BASE | '_' | ':'


It looks like updating NT and NQ was overlooked because this was 
reported in RDF-WG:

Report (2012):
https://lists.w3.org/Archives/Public/public-rdf-comments/2012Jul/0006.html

RDF-WG Announcement of Fix (2012):
https://lists.w3.org/Archives/Public/public-rdf-wg/2012Jul/0037.html


rdf-tests is the community maintaining the RDF and SPARQL test suites.
https://lists.w3.org/Archives/Public/public-rdf-tests/2022Mar/0000.html

Thanks to @Hendrikto for spotting this and to Gavin for finding the 
email trail from the archives.

     Andy

Received on Saturday, 5 March 2022 11:17:13 UTC