Re: Whitespace in Turtle after ^^

Thank you for enlightening me, both ;)

AllegroGraph & TopBraid Composer were reported to us to bark on this, but
it might be a side effect of another invalid localname ( ns0:api# ) which
it rightly moaned about.

..And Jena, but Andy just fixed it. Sorry for giving you more work, Andy..
I guess you tested for that

<s> <p> "no space after @" @en .

case as well.
 On 19 Jan 2015 16:53, "Eric Prud'hommeaux" <eric@w3.org> wrote:

> * Stian Soiland-Reyes <soiland-reyes@cs.manchester.ac.uk> [2015-01-19
> 16:05+0000]
> > Hi, I somehow have come over some "evil" Turtle that seems to be on the
> form:
> >
> > <http://example.com/s2> <http://example.com/p> "false"^^
> > <http://www.w3.org/2001/XMLSchema#boolean> .
> >
> > (One word: PHP)
> >
> >
> > Now, as bad style as this might look - I could not figure out from the
> > RDF Turtle 1.1 grammar why it shouldn't be valid.
>
> What lead you to believe it was invalid? I've tried a few Turtle and
> SPARQL parsers ('cause they use the same productions) and they all
> accepted it. For example
> [[
> ASK { FILTER ("false"^^
> <http://www.w3.org/2001/XMLSchema#boolean>)
>     }
> ]]
> passes <http://sparql.org/query-validator.html>.
>
>
> > http://www.w3.org/TR/turtle/#grammar-production-RDFLiteral
> >
> > [128s] RDFLiteral ::= String (LANGTAG | '^^' iri)?
> >
> > vs.
> >
> > [7] predicateObjectList ::= verb objectList (';' (verb objectList)?)*
> >
> >
> > We "all know" that whitespace is allowed around ; - and not around ^^
> > - yet I can't see this reflected in these rules. Perhaps my grammar
> > understanding is a bit rusty.
> >
> >
> > http://www.w3.org/TR/turtle/#sec-grammar-ws says:
> >
> > > White space (production WS) is used to separate two terminals which
> would otherwise be (mis-)recognized as one terminal. Rule names below in
> capitals indicate where white space is significant; these form a possible
> choice of terminals for constructing a Turtle parser.
> >
> > > White space is significant in the production String.
> >
> >
> > Neither RDFLiteral or predicateObjectList are listed under Terminals.
> >
> >
> > So there's a special WS production - but that's only used between [ ]
> > - e.g. so you can do
> >
> > [ a foaf:Person ]  #someone
> >   foaf:knows  # Someone (else?)
> >   [ a foaf:Person ] .
> >
> >
> >
> > String is
> >
> >
> > [17] String ::= STRING_LITERAL_QUOTE | STRING_LITERAL_SINGLE_QUOTE |
> > STRING_LITERAL_LONG_SINGLE_QUOTE | STRING_LITERAL_LONG_QUOTE
> >
> >
> >
> > Can anyone enlighten me?
> >
> >
> >
> > --
> > Stian Soiland-Reyes, myGrid team
> > School of Computer Science
> > The University of Manchester
> > http://soiland-reyes.com/stian/work/
> http://orcid.org/0000-0001-9842-9718
> >
>
> --
> -ericP
>
> office: +1.617.599.3509
> mobile: +33.6.80.80.35.59
>
> (eric@w3.org)
> Feel free to forward this message to any list for any purpose other than
> email address distribution.
>
> There are subtle nuances encoded in font variation and clever layout
> which can only be seen by printing this message on high-clay paper.
>