- From: Gregg Kellogg <gregg@greggkellogg.com>
- Date: Tue, 14 May 2013 09:29:10 -0700
- To: Lin Clark <lin.w.clark@gmail.com>
- Cc: Robert Kost <kostrjk@gmail.com>, SchemaDot Org <public-vocabs@w3.org>
- Message-ID: <8222595477436052023@unknownmsgid>
On May 14, 2013, at 9:22 AM, Lin Clark <lin.w.clark@gmail.com> wrote: Nope, I thought that it had been introduced, but it looks like RDFa does not have this feature according to Manu's blog, http://manu.sporny.org/category/semantic-web/. I think there's a misunderstanding. While RDFa doesn't have this feature, HTML+RDFa does have property copying feature [1], which is a rule-based mechanism that achieves essentially the same thing as @itemref. This will eventually make it into RDFa core. Gregg [1] http://www.w3.org/TR/rdfa-in-html/#property-copying I agree with Martin, itemref is a strong feature in microdata. It's one of the things that makes it possible to output microdata more reliably than RDFa when using Drupal, and the lack of the feature in RDFa will probably hinder Drupal's use of RDFa in Drupal 8. -Lin On Tue, May 14, 2013 at 11:20 AM, Robert Kost <kostrjk@gmail.com> wrote: > Vielen Dank for the prompt to-the-point reply, Martin! > > > > > In my opinion, itemref is a really strong feature of Microdata. > > > > I very much agree. This feature alone may require moving to Microdata in > some cases. As Emile's original request implies, the isomorphism between > document presentation structure and semantic markup, coupled with Google / > Bing's threat to disregard 'improper' <meta> tags, is a real problem for > RDFa. > > Is there a way to use "resource" in RDFa to accomplish this? > > Another question: is there any way to reference items between pages? > > Thanks much > > Rob > -- Lin Clark Drupal Consultant lin-clark.com twitter.com/linclark
Received on Tuesday, 14 May 2013 16:29:38 UTC