redundant mixed="true" required?

Hello,

Suppose that I have a schema like this:

<xs:schema version="1.0"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    targetNamespace="http://example.com/test"
    xmlns:test="http://example.com/test">

  <xs:attributeGroup name="attrs">
    <xs:attribute name="id" type="xs:ID"/>
    <xs:attribute name="class" type="xs:NMTOKENS"/>
  </xs:attributeGroup>

  <xs:complexType name="mixed" mixed="true">
    <xs:choice minOccurs="0" maxOccurs="unbounded">
      <xs:element ref="test:a"/>
      <xs:element ref="test:b"/>
    </xs:choice>
  </xs:complexType>

  <xs:element name="root">
    <xs:complexType>
      <xs:complexContent>
        <xs:extension base="test:mixed">
          <xs:attribute name="id" type="xs:ID"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>

  <xs:element name="a">
    <xs:complexType>
      <xs:complexContent>
        <xs:extension base="test:mixed">
          <xs:attributeGroup ref="test:attrs"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>

  <xs:element name="b">
    <xs:complexType>
      <xs:complexContent>
        <xs:extension base="test:mixed">
          <xs:attributeGroup ref="test:attrs"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>

</xs:schema>

And an instance would be something like this:

<root xmlns="http://example.com/test">
  ccc<a>aaa<b>bbb</b>aaa</a>ccc<b>bbb<a>aaa</a>bbb</b>ccc
</root>

MSV (20020414), Xerces-J 2.0.2 and XML Spy 4.4 reported no problem,
but XSV (online version, 1.203.2.47.2.4.2.11/1.106.2.25.2.3) complained
like this:

    Invalid per cvc-complex-type.1.2.3: text not allowed: | ccc|

If I change each element declaration like the following, XSV doesn't
complain anymore.

  <xs:element name="root">
    <xs:complexType mixed="true">
      <xs:complexContent>
        <xs:extension base="test:mixed">
          <xs:attribute name="id" type="xs:ID"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>

What's/who's wrong?

Thanks,
-- 
Masayasu Ishikawa / mimasa@w3.org
W3C - World Wide Web Consortium

Received on Monday, 26 August 2002 01:06:16 UTC