- From: pat hayes <phayes@ai.uwf.edu>
- Date: Thu, 1 May 2003 10:07:55 -0500
- To: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
- Cc: www-rdf-comments@w3.org
>From: pat hayes <phayes@ai.uwf.edu> >Subject: [closed] issue #pfps-07 typed literals with lang tags >Date: Tue, 29 Apr 2003 16:06:56 -0500 > >> Peter, >> >> In >> >> http://lists.w3.org/Archives/Public/www-rdf-comments/2003JanMar/0088.html >> >> you raised a last call comment on the RDFCore WD's which was recorded as: >> >> http://www.w3.org/2001/sw/RDFCore/20030123-issues/#pfps-07 >> >> The RDFCore WG has accepted your comment: >> >> http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2003Apr/0361.html >> >> and the wording of the current editor's draft of the semantics document >> > > http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-mt-20030117/ >> >> incorporates conditions and rules for the case you describe. >> >> Please reply to this message, copying www-rdf-comments@w3.org, >> indicating whether this decision is acceptable. >> >> Pat Hayes > >This message is extraordinarily cryptic. > >I would appreciate some indication of just what has been done to address >whatever concern I had here. OK. The omission of this case (non-XML typed literals containing lang tags) from the last call document was a editorial mistake. Putting this case back in has necessitated making changes to the semantic conditions and to the closure rules to cover this case. The semantic conditions have been altered so that lang tags in non-XML typed literals are required to not influence the interpretation of the literal, ie they are effectively ignored by the semantics. (Section 3.1, http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-mt-20030117/#rdfinterp) The closure rules (see http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-mt-20030117/#rdf_entail ) now include two rules which sanction the removal, insertion or replacement of lang tags in any non-XML typed literal. There is a comment in the subsequent text to the effect that it would be computationally more efficient to simply strip out lang tags from all non-XML literals as a syntactic normalization. In both cases, these are stated as RDF conditions, so hold in all semantic extensions which apply to the lang tag literal syntax. The conditions on datatypes are stated so that the lexical form to which the datatype mapping is applied consists of the literal string, and does not include the lang tag (in non-XML literals). This is in line with the above rules, of course. The case of lang tags in XML typed literals is covered by other rules and conditions. This is somewhat more complicated and may still be modified. I presume that your comment was not intended to apply to this case as the last call document covered this case (inadequately, but that was a different question which is still being addressed.) Pat -- --------------------------------------------------------------------- IHMC (850)434 8903 or (650)494 3973 home 40 South Alcaniz St. (850)202 4416 office Pensacola (850)202 4440 fax FL 32501 (850)291 0667 cell phayes@ai.uwf.edu http://www.coginst.uwf.edu/~phayes s.pam@ai.uwf.edu for spam
Received on Thursday, 1 May 2003 11:07:59 UTC