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Re: [xml-dev] Use xsd to specify multiple instances of existing element

Hi Ian,

I'm not sure I understand exactly what you want.  Do you want an XML schema
something like:

    <xs:element name='Category' type='privacy'/>
    <xs:element name='Category' type='fishingType'/>

(which would be illegal I afraid)

If not, maybe you could show us a few example XML instances.


Pete Cordell
Codalogic Ltd
Interface XML to C++ the easy way using XML C++
data binding to convert XSD schemas to C++ classes.
Visit http://www.codalogic.com/lmx/ for more info

----- Original Message ----- 
From: "Ian Mayo" <ianmayo@tesco.net>
To: <xml-dev@lists.xml.org>
Sent: Monday, September 22, 2008 9:27 AM
Subject: [xml-dev] Use xsd to specify multiple instances of existing element

> Hi all,
> I'm trying to extend an existing schema.  The existing schema provides a
> Category element that takes a 'term' and a 'scheme' (yes, it's an xsd
> attempt at an Atom schema).  In my schema extension I'd like to specify
> that
> there will be two Category elements, one using a scheme of '
> http://www.dig.com/privacy' that takes a term attribute of 'open' or
> 'private', and the second category element will take a scheme of '
> http://www.dig.com/fishingType', taking a term attribute of either
> 'coarse'
> or 'open'.
> Now, is it possible for an xsd schema to specify that these two elements
> must be present?  I can see how to mandate the presence of two different
> elements, but these represent the same element but with different
> attribute
> combinations.
> cheers,
> Ian
> -- 
> Ian Mayo
> PlanetMayo Ltd

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