- From: Mark Birbeck <mark.birbeck@webbackplane.com>
- Date: Sun, 15 Aug 2010 15:35:17 +0100
- To: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
- Cc: Ivan Herman <ivan@w3.org>, Shane McCarron <shane@aptest.com>, public-rdfa-wg@w3.org
Hi Leif, > [...] > The RDFa syntax spec has a blockquote example, > http://www.w3.org/MarkUp/2010/ED-rdfa-syntax-20100113/#sec_6.3.2.1. > > If we rewrite it a little, it looks like this: > <blockquote id="q1" about="#q1" rel="cite" > resource="urn:ISBN:0140449132" > > > and generates > doc#q1 <http://www.w3.org/1999/xhtml/vocab#cite> <urn:ISBN:0140449132> > > And I think that this: > <blockquote id="q1" cite="urn:ISBN:0140449132" > > > should generate the same triples. There's nothing wrong with @cite generating a predicate, and indeed this featured in some of the early RDFa work. (It was dropped more because of time constraints than anything to do with the feature itself.) However, @id does not automatically generate a URI, and there are good reasons for not doing so. In other words, these two sets of markup will both genereate the same triples, with <#q1> as the subject: <blockquote id="q1" about="#q1" rel="cite" resource="urn:ISBN:0140449132"> <blockquote about="#q1" rel="cite" resource="urn:ISBN:0140449132"> I.e., the @id is irrelevant. Similarly, both of these have bnodes for their subjects: <blockquote id="q1" rel="cite" resource="urn:ISBN:0140449132"> <blockquote rel="cite" resource="urn:ISBN:0140449132"> Once again, the @id is irrelevant. > So, perhaps one of the first things that should be done would be to add > @longdesc to the XHTML vocab profile so that one do the same for > @longdesc. I'll leave that discussion to another thread -- I just wanted to quickly clarify the situation with relation to @id. Regards, Mark -- Mark Birbeck, webBackplane mark.birbeck@webBackplane.com http://webBackplane.com/mark-birbeck webBackplane is a trading name of Backplane Ltd. (company number 05972288, registered office: 2nd Floor, 69/85 Tabernacle Street, London, EC2A 4RR)
Received on Sunday, 15 August 2010 14:36:13 UTC