On Jul 14, 2010, at 11:03 , Toby Inkster wrote: [snip] > > Ivan wrote: > >> 2. in RDFa+XHTML (and I presume in RDFa+HTML5) there is a a default >> @vocab, namely http://www.w3.org/1999/xhtml/vocab# and, if this is the >> one in effect, then terms are interpreted in a case insensitive way, >> ie, terms must be mapped on lower case. > > Personally I'd ditch that too -- you get too many junk results. Better > to say that the default vocabulary in (X)HTML+RDFa is null. > > Otherwise you'll end up with having to deal with rel values from > Microformats, etc. The problem with that it that Microformats have > their own ways of determining what the "subject" is for a rel; applying > RDF's @about/@src/chaining rules doesn't work well. > > To handle the case of rel="next", rel="prev", etc define a default > *profile* for XHTML+RDFa, and have that profile define those terms > case-insensitively. (The profile SHOULD be hard-coded in XHTML+RDFa > parsers; authors MAY include an explicit @profile attribute referencing > the default profile.) > If we can specify that cleanly, I do not have any problem with that approach. But I remember Ralph had some technical issues with that (let us consider him as a honorary Working Group member:-) but I do not remember what that was. Worth asking him if we go down that route. > This means that parsers need to internally allow profiles to define > both case-sensitive and case-insensitive terms, Yeah, that is what I do already, I just never put that into the rdfa vocabulary to avoid overcomplication... Ivan > though we may decide > not that profiles other than the XHTML vocab are not privileged to > declare case-insensitive terms. > > This solution allows us to pick up "our" @rel terms but skim safely > over the @rel terms used by Microformats, Javascript libraries, etc. > > -- > Toby A Inkster > <mailto:mail@tobyinkster.co.uk> > <http://tobyinkster.co.uk> > ---- Ivan Herman, W3C Semantic Web Activity Lead Home: http://www.w3.org/People/Ivan/ mobile: +31-641044153 PGP Key: http://www.ivan-herman.net/pgpkey.html FOAF: http://www.ivan-herman.net/foaf.rdf
This archive was generated by hypermail 2.2.0+W3C-0.50 : Friday, 27 April 2012 04:55:07 GMT