Re: [docbook] Ruminations on the future of DocBook

[Jirka Kosek <jirka@kosek.cz>]

Tobias Reif wrote:

> It will satisfy most of the requirements, yes.
> (Note that Norm lists one shortcoming:
> http://norman.walsh.name/2003/05/21/docbook
> "A future version of RELAX NG might give us back our exclusions.")

This is not shortcoming, but profit. Exclusions are quite useful 
mechanism known from SGML DTDs but missing in XML ones. Exclusions allow 
you to remove some elements from content model without needing to change 
this content. This is useful for complex DTDs where you have content 
models stored in parametric entities.

				Jirka

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   Jirka Kosek  	
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