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   Re: [xml-dev] Constraining a "mixed" mixed content model (XHTML<div>)

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Hi,

Le dimanche 11 septembre 2005 à 18:03 -0700, Mark O. Zorro a écrit :
.../...
> I'd like to constrain the DTD content model, if at all possible, so
> <div> may have one, and only one, of the following:
> 
> Either 1)   (%Block.class)*
> Or     2)   (#PCDATA | %Inline.class;)*

.../...

> I'm getting the sinking feeling there's no way to build the content
> model I'd like in XML, at least which would work in a DTD. If not,
> why not? Would XML Schema or RelaxNG resolve the issue?

This is one of the few restrictions that has been kept in RELAX NG (see
http://books.xmlschemata.org/relaxng/relax-CHP-7-SECT-10.html for some
comments about this fact)...

To express this kind of constraints, you could use Schematron either as
a standalone schema or embedded in RELAX NG or W3C XML Schema schemas.

Eric

-- 
Read me on XML.com.
                                            http://www.xml.com/pub/au/74
------------------------------------------------------------------------
Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
(ISO) RELAX NG   ISBN:0-596-00421-4 http://oreilly.com/catalog/relax
(W3C) XML Schema ISBN:0-596-00252-1 http://oreilly.com/catalog/xmlschema
------------------------------------------------------------------------





 

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