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Re: extra comments on test cases

From: Ivan Herman <ivan@w3.org>
Date: Mon, 11 Feb 2008 18:59:34 +0100
To: Mark Birbeck <mark.birbeck@x-port.net>
Cc: ben@adida.net, public-rdf-in-xhtml-tf@w3.org
Message-id: <0JW300L4X60X3E20@vfnlw44s.vfnl.dc-ratingen.de>

Mark,

as I said before, I can live with that; this is what my submitted tests (and my implementation) does. I do not consider this issue as major. But you have to 
get an amen from the group: I was merely answering to Ben's mail!

Ivan

------- Original message -------
From: Mark Birbeck <mark.birbeck@x-port.net>
Cc: ben@adida.net, public-rdf-in-xhtml-tf@w3.org
Sent: 11.2.'08,  16:28

> Hi Ivan,
> 
> Just a quick comment on this...I do like your idea for generating
> unique bnodes with the syntax "[_:]". However, as myself and Shane
> have evolved CURIEs we've taken that approach that where there is a
> precedent, we should follow it. Indeed, the whole point of CURIEs is
> to make something that is already being done a little bit easier.
> 
> And, since Turtle already uses ":" and "_:" in a specific way, we've
> gone for having consistency with it.
> 
> So I think we should stick with what we have, with the caveat that if
> you think there is a possibility that Turtle might ever go in the
> direction you are suggesting, then we could for now say that this
> syntax is not allowed, leaving the way open for adding better support
> in the future.
> 
> My guess is that Turtle doesn't need it, though, since you can simply
> use '[' and ']' to get the same effect.
> 
> Anyway, I'll leave that to you semweb guys. ;)
> 
> Regards,
> 
> Mark
> 
> On 07/02/2008, Ivan Herman <ivan@w3.org> wrote:
> >
> >
> > Ben Adida wrote:
> > >
> > >
> > > 88: I'm not sure about this one: I thought that about="[_:]" would
> > > generate a *new* bnode since it's not named, thus yielding two bnodes
> > > here, since it's used twice.
> > >
> > > <http://www.example.org/#somebody>
> > >    foaf:knows [a foaf:Person], [foaf:name "Dan Brickely"] .
> > >
> > > If you used about="[_:a]" both times, meaning you actually gave it the
> > > same bnode identifier, then yes that would mean one bnode in my mind.
> > > Thoughts?
> > >
> >
> > Well... that has been a discussion between Mark and me. Mark can make
> > the argument better than I can... but I think the argument says that if
> > you do not have a local name, then a CURIE means, essentially, the
> > prefix part. That is why it is the same BNode.
> >
> > My argument was a bit different, namely that the CURIE spec is 'mapped'
> > against the usage of BNode anyway, in the sense that we give an extra
> > interpretation to what _:XXX means (ie, that it is a BNode), so we have
> > the freedom to define what _: means.
> >
> > Either way: this must be decided. So it _is_ a good test:-) because it
> > forces us to make a decision in one way or the other:-)
> >
> > Ivan
> >
> >
> > > -Ben
> > >
> >
> > --
> >
> > Ivan Herman, W3C Semantic Web Activity Lead
> > Home: http://www.w3.org/People/Ivan/
> > PGP Key: http://www.ivan-herman.net/pgpkey.html
> > FOAF: http://www.ivan-herman.net/foaf.rdf
> >
> >
> 
> 
> -- 
>   Mark Birbeck
> 
>   mark.birbeck@x-port.net | +44 (0) 20 7689 9232
>   http://www.x-port.net | http://internet-apps.blogspot.com
> 
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Received on Monday, 11 February 2008 18:01:09 GMT

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