Re: [xml-dev] Schema constructs

[ht@inf.ed.ac.uk (Henry S. Thompson)]

If I've understood correctly, you want

 (tag , ( lowscale | (hiscale, hialarm) | (...)))

You can say this in W3C XML Schema as follows:

"James, David" <david.james@invensys.com> writes:

 <xsd:element name="modify">
   <xsd:complexType>
     <xsd:sequence>
       <xsd:element ref="tag"/>
       <xsd:choice minOccurs="0">
         <xsd:element ref="lowscale"/>
         <xsd:sequence>
          <xsd:element ref="hiscale"/>
          <xsd:element ref="hialarm"/>
         </xsd:sequence>
         <xsd:sequence>
           . . .
         </xsd:sequence>
       </xsd:choice>
     </xsd:sequence>
   </xsd:complexType>
 </xsd:element>

Hope this helps

ht
-- 
 Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                     Half-time member of W3C Team
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