docbook-apps

Hi,

I've got a fairly straightforward customization of DocBook v5b9. One of
the major changes is adding elements from another namespace to the info
element (extending to allow markup from Dublin Core or ODRL, for example).

I've got a valid RNC file, and have successfully validated content
against this model. Now I need to create a DTD version of this schema
for a particular authoring environment.

I've tried XML Hack #78 (my usual process), as well as rng2srng and
http://downloads.xmlschemata.org/relax-ng/utilities/simplification.xsl.

All of these methods produce a ton of errors (such as: sorry, combining
definitions with combine="choice" is not supported
sorry, cannot handle this kind of "oneOrMore"
sorry, cannot handle this kind of "group"
sorry, cannot handle this kind of "mixed"
sorry, cannot handle this kind of "zeroOrMore")

I also tried using trang to convert to XSD, and it failed to complete at
all.

Any ideas or recommended best practices for converting RNC to DTD?

One of the major reasons for moving one of my clients to DB5, is the
ease of customization with RNC. If I can't produce a DTD or XSD, I'm
afraid my client won't have very many choices of authoring tools since
there is a huge lack of support for RelaxNG...

Thanks and best regards,

--Scott

Scott Hudson wrote:

> Any ideas or recommended best practices for converting RNC to DTD?

DocBook V5 schema is quite complex and most conversion tools choke on
it. I successfully use build process for DocBook V5 schemas also for my
own schemas. This way I can get DTD and XSD and moreover I got
"flattened" RNC and RNG version of schema which is in file and doesn't
depend on external DocBook V5 schema. You can find build environment in
SVN in docbook/relaxng/docbook directory.

HTH,

Jirka

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Jirka Kosek e-mail: jirka@kosek.cz http://www.kosek.cz
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Profesionální školení a poradenství v oblasti technologií XML.
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** XSLT 23.-26.10.2006 ** XML schémata 13.-15.11.2006 **
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