Peter, Peter F. Patel-Schneider wrote: > > > > Note: The divergence from the pattern matching in XML Schema datatypes > is intentional, as RDF language tags are normalized into lower case, so > pattern matching against any lexical form ends up being much more > difficult. > > Question: Should langPattern be turned into lower case as well? It > would be nice to have langPattern "en-US" match against a particular > dialect of English. Language tags in RFC3066 are supposed to be case > insensitive, so it would be possible to specify a case insensitive > pattern match, and then suggest that this could be done just by > normalizing everything to lower case. > > Aside: Is there a new version of RFC3066 out? I seem to remember > something along these lines. > The latest version seems to be RDFC4646, superseding RFC3066: http://www.rfc-editor.org/rfc/rfc4646.txt The case insensitivity is still in effect. B.t.w., Richard Ishida's overview on the language tags is nice: http://www.w3.org/International/articles/language-tags/ for those who have not seen the possible complexity of that stuff... Ivan > Note: Matching against the string part of an owl:internationalizedString > is in keeping with XML Schema datatypes, as the XML lexical form of an > owl:internationalizedString is the string part (i.e., not including the > language tag). > > > > Peter F. Patel-Schneider > Bell Labs Research > > PS: This appears to satisfy Bijan's ACTION-142. > -- 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
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