- From: Graham Klyne <Graham.Klyne@MIMEsweeper.com>
- Date: Mon, 21 Oct 2002 20:45:39 +0100
- To: Brian McBride <bwm@hplb.hpl.hp.com>
- Cc: Jeremy Carroll <jjc@hplb.hpl.hp.com>, w3c-rdfcore-wg@w3.org
At 03:34 PM 10/21/02 +0100, Brian McBride wrote: >At 15:16 21/10/2002 +0200, Jeremy Carroll wrote: > >[...] > >>Motivations are: >>- uniform framework >>- addresses TBL's desire that XML is not built-in at the lowest level to RDF >>- provides argument why lang tags are part of literal >>- gives an example of a non-XSD type system that Brian is prepared to >>defend. > >I'm sorry, I'm maybe being contradictory on this. This proposal means that >either: > > 1) A datatyped literal denotes a value, in which case RDF datatypes map > a pair (lex, lang) to a value which is contrary to the xsd datatyping model > > 2) A datatype literal denotes a pair (val, lang) and then we have > (speaking loosely) French integers being different from English integers, i.e. > > <jenny> <age> "10"-"fr"-<http://...#decimal> . > <johnny> <age> "10"-"en"-<http://...#decimal> . > >does not entail > > <jenny> <age> _:l . > <johnny> <age> _:l . > >I really don't want to go anywhere near 2. Yes, (2) looks like a minor disaster to me. Suppose I have a URI that denotes the integer 42, nothing more. Let's call it urn:number:42. If I say: <jenny> <age> "42"-"fr"-<http://...#decimal> . <johnny> <age> urn:number:42 does that entail the following, given knowledge that urn:number:42 denotes the same number that is represented in the identified ...#decimal datatype mapping of "42": <jenny> <age> _:l . <johnny> <age> _:l . I think the answer should be yes. Then what about: <jenny> <age> "42"-"en"-<http://...#decimal> . <johnny> <age> urn:number:42 I think the answer should still be yes. Then, I think your original entailment (above) must also be allowed. Taking language ids on numbers into the domain of interpretation seems all wrong to me. #g -- >No one wants to declare the existing Nokia data illegal, but I currently >see a choice between: > > o following the xsd datatyping model (except we play a little fast and > loose on the legacy) > o or blessing the current Nokia data > >I suggest that if we choose the latter, we are in for heavy last call >comments. I doubt that the schema datatypes decision that lang was not a >factor in the mapping was taken lightly. > >Brian ------------------- Graham Klyne <GK@NineByNine.org>
Received on Monday, 21 October 2002 15:30:03 UTC