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Subject: Re: [docbook] RFE: RDFa in Docbook 5

Hi Joshua,
If you want this to be considered by the DocBook Technical Committee, please file a RFE on the DocBook SourceForge site:


The Technical Committee will then take it up at its next meeting.

Bob Stayton
Sagehill Enterprises

From: "Joshua Wulf" <jwulf@redhat.com>
Sent: Wednesday, February 06, 2013 6:52 PM
To: "Jirka Kosek" <jirka@kosek.cz>
Cc: <docbook@lists.oasis-open.org>
Subject: Re: [docbook] RFE: RDFa in Docbook 5

Revisting this ~a year later...

It looks like schema.org is converging on RDFa Lite:


Manu Sporny makes a solid case that RDFa Lite is the one to go with: http://manu.sporny.org/2012/mythical-differences/

Schema.org has a proposed vocabulary for technical documentation too: http://blog.schema.org/2012/06/newvocabularies-for-technical.html

With Docbook 5 and HTML 5, what's the situation with putting schema.org markup into Docbook books (whether through microdata or RDFa Lite) today?

Norm put this customization together: https://gist.github.com/docbook/2768701

So to get that to work, I'd need to modify my xsl to pipe it through to the html, right?

If I do that, what are the chances of it being accepted into a future release?

- Josh

----- Original Message -----
From: "Jirka Kosek" <jirka@kosek.cz>
To: "Joshua Wulf" <jwulf@redhat.com>
Cc: docbook@lists.oasis-open.org
Sent: Tuesday, December 13, 2011 7:12:54 PM
Subject: Re: [docbook] RFE: RDFa in Docbook 5

On 13.12.2011 3:28, Joshua Wulf wrote:

> I'm not sure if I have it right, but it seems that Docbook 5 with
> its
> xml schema base supports adding RDFa data to the xml with no
> problems.
> What I'd like is to have that RDFa data flow through to the built
> html
> output.

Hi Joshua,

could you elaborate more on you requirements. What's usecase for
RDFa in DocBook?

> I've opened the RFE against the XSL stylesheets rather than against
> the
> DTD/schema because (I think) that's the only place that changes
> would
> need to be made. Have I opened it in the right place?

Probably no. If we decide that adding RDFa into DocBook is good idea,
schema has to be modified first. If you look at
http://www.w3.org/TR/rdfa-syntax/ you will see that special
like property, rel, about, resource, datatype are needed to convey
If you want to use RDFa in DocBook similar attributes has to be added
into DocBook.

Once this is done, appropriate change in stylesheets has to be done
well to pipe these metadata to XHTML output.

But it would be really interesting to know what problem are you
to solve. Honestly, future for RDFa doesn't look very bright IMHO.
Currently it can be used only in XHTML, not in HTML. It seems that
approach chosen by microdata/schema.org has more chances on the
But we will see.


  Jirka Kosek      e-mail: jirka@kosek.cz      http://xmlguru.cz
       Professional XML consulting and training services
  DocBook customization, custom XSLT/XSL-FO document processing
 OASIS DocBook TC member, W3C Invited Expert, ISO JTC1/SC34 member

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