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- From: "Roger L. Costello" <costello@mitre.org>
- To: xml-dev@xml.org
- Date: Mon, 10 Jul 2000 08:45:09 -0400
glen.albert@autodesk.com wrote:
>
> I hadn't considered "choice" as a solution to
> this problem because I thought that it only allowed one of the listed
> elements.
In fact, <choice> does allow only one selection in the choice list.
However, as Henry wrote it, he is allowing repetitions of <choice>.
It's analogous to this DTD:
<!ELEMENT CoordGeo ( Line | Curve | Spiral )*>
You select Line or Curve or Spiral, but that can be repeated zero or
more times.
/Roger
> > -----Original Message-----
> > From: ht@cogsci.ed.ac.uk [mailto:ht@cogsci.ed.ac.uk]
> > Sent: July 10, 2000 6:23 AM
> > To: glen.albert@autodesk.com
> > Cc: xml-dev@xml.org
> > Subject: Re: element order restrictions?
> >
> >
> > If I understand your design correctly, what you need is
> >
> > <element name="CoordGeom">
> > <complexType>
> > <choice minOccurs="0" maxOccurs="unbounded>
> > <element ref="Line"/>
> > <element ref="Curve"/>
> > <element ref="Spiral"/>
> > </choice>
> > </complexType>
> > </element>
> >
> > ht
> > --
> > Henry S. Thompson, HCRC Language Technology Group,
> > University of Edinburgh
> > W3C Fellow 1999--2001, part-time member of W3C Team
> > 2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44)
> > 131 650-4440
> > Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
> > URL: http://www.ltg.ed.ac.uk/~ht/
> >
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