RDF-WG to SPARQL-WG: request to consider a change to SPARQL prefix name token syntax.

This is a formal message from RDF-WG to SPARQL-WG.

The RDF-WG is considering changing Turtle to include ":" as a legal 
character in the local part of a prefixed name.  They are asking whether 
SPARQL-WG is open to making this as a co-ordinated change.

The effect is to make


a legal prefix name being the URI:


RDFa allows RDFa-CURIES with ":" in the local part. [1]
See [2] for more examples.

This would break existing Turtle/SPARQL where no white space is used to 
separate adjacent prefixed names.

For example, this is legal Turtle currently

@prefix a: <http://example/NS/> .
@prefix : <http://example/NS/> .

a:b:c:d .

a:b :c :d .
because the : of :c ends the local part of a:b

 Andy "the messenger"

[1] http://www.w3.org/TR/rdfa-core/#s_curies
     not the CURIE note http://www.w3.org/TR/curie
     which does not permit "a:b:c"
[2] http://ogp.me/

Received on Wednesday, 28 March 2012 20:15:51 UTC