xml/xsd - all/sequence/choice/ magic?

[Jan Palus]

<xs:group name="wrapperContentGroup">
  <xs:sequence>
    <xs:element name="function" type="functionType" minOccurs="0" />
    <xs:element name="class" type="classType" minOccurs="0" />
    <xs:element name="namespace" type="namespaceType" minOccurs="0" />
  </xs:sequence>
</xs:group>

<xs:element name="wrapper">
  <xs:complexType>
    <xs:sequence>
      <xs:group ref="wrapperContentGroup" minOccurs="0" maxOccurs="unbounded" />
    </xs:sequence>
  </xs:complexType>
</xs:element>