Group redefinition and recursive content models.

Just wondering how a recursive group such as:

  <xs:group name="group">
   <xs:sequence>
     <xs:element name="foo">
      <xs:complexType>
        <xs:group ref="group" minOccurs="0"/>
      </xs:complexType>
     </xs:element>
     <xs:element name="bar" type="xs:token"/>
   </xs:sequence>
  </xs:group>

may be redefine without confusion between the <xs:group ref="group"/> 
meaning "extension", the <xs:group ref="group" minOccurs="0"/> meaning 
"bogus extension" the <xs:group ref="group" minOccurs="0"/> meaning 
"reference" ???

Thanks

Eric

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Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
http://xsltunit.org      http://4xt.org           http://examplotron.org
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