- From: Dan Connolly <connolly@w3.org>
- Date: Wed, 05 Dec 2001 13:20:49 -0600
- To: Patrick.Stickler@nokia.com
- CC: w3c-rdfcore-wg@w3.org
Patrick.Stickler@nokia.com wrote: > > I thought the idea of scalars in Perl was that their interpretation > was delayed to the actual operation being applied. You can look at it that way if you like... you won't run into any contradictions, as far as I can tell; but that's not how the perl designers specify it. Again, please see: <http://www.perldoc.com/perl5.6/pod/perldata.html> > The rdfs:range > property is not IMO an operation. An operation would be something > like max(a,b) or add(x,y). I don't see the distinction. (I'm not sure it matters, either...) > If the Perl scalar approach were taken, > then *all* RDF would concern itself with would be the lexical forms > and interpretation would be left to applications and particular > operations of applications and those operations/applications would > have to inspect and deduce data types and values themselves simply > based on the lexical characteristics of the scalar representation. So far so good... (I take it you're not using 'interpretation' in the sense of the RDF model theory.) > I don't really see how the PL proposal is different from the > PDU proposal in that what is suggested is that the interpretation > of a given scalar (lexical form) is based on the pairing of that > scalar (lexical form) with a data type identifier. That's exactly > what PDU suggests. Now it becomes critical to be clear whether you mean 'interpretation' in the sense of the RDF model theory or not. I understand the P/P++ proposal to actually muck with that level of interpretation; they actually allow model-theoretic interpretaions where the objects of <rdfs:label>10</rdfs:label> and <ex:shoeSize>10</ex:shoeSize> denote different things. The S/DC/PL proposals don't muck with things at that level. > What am I missing here? (or am I missing anything?) I'm not sure; I would need you to be more precise before I can tell. -- Dan Connolly, W3C http://www.w3.org/People/Connolly/
Received on Wednesday, 5 December 2001 14:20:52 UTC