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Re: xml schema Second Edition-regarding substitution group

From: Henry S. Thompson <ht@inf.ed.ac.uk>
Date: Wed, 24 Mar 2004 09:25:04 +0000
To: gayathri veerarajan <gaytri_v@yahoo.co.in>
Cc: xmlschema-dev@w3.org
Message-ID: <f5bfzbyzjf3.fsf@erasmus.inf.ed.ac.uk>

Your analysis is essentially correct, but this is not a change from
the first edition.

The best you can do is make the implicit choice explicit, and use
local declarations:

<xsd:complexType name="Purchase-Derivant">
  <xsd:complexContent>
     <xsd:restriction base="r:PurchaseOrderType" >
           <xsd:sequence>
  	 <xsd:element name="shipTo" type="xsd:string"/>
                <xsd:choice>
                 <xsd:element name="amount" type="xsd:positiveInteger"/>
                 <xsd:element name="price" type="xsd:positiveInteger"/>
                </xsd:choice>
           </xsd:sequence>
     </xsd:restriction>
  </xsd:complexContent>
</xsd:complexType>

ht
-- 
 Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                     Half-time member of W3C Team
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            Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk
                   URL: http://www.ltg.ed.ac.uk/~ht/
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Received on Wednesday, 24 March 2004 04:29:08 UTC

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