Re: [docbook] v5 extension elements

[Jirka Kosek <jirka@kosek.cz>]

Dave Pawson wrote:
> Further effort to extend, this time a block level element.
> 
> <include href="/sgml/docbook/v5/docbook.rng">
>   <define name="db.para.blocks" combine='choice'>
>     <oneOrMore>  <ref name="poem"/> </oneOrMore>
>   </define>
> </include>

Nesting define inside include works like redefinition. Your schema
should look like:

<include ...docbook.rng/>

<include ...poem.rng/>

<define name="db.para.blocks" combine="choice">
  ...
</define>

Or you can simply add this last define directly inside poem.rng.

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