source: vbox/trunk/src/libs/libxml2-2.9.14/test/schemas/cos-ct-extends-1-3_0.xsd@ 102035

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!--
        Schema Component Constraint: Derivation Valid (Extension)

        1.3 If it has an {attribute wildcard}, the complex type definition must 
        also have one, and the base type definition's {attribute wildcard}'s 
        {namespace constraint} must be a subset of the complex type definition's 
        {attribute wildcard}'s {namespace constraint}, as defined by Wildcard Subset (§3.10.6).
-->
<schema xmlns="http://www.w3.org/2001/XMLSchema"        
        targetNamespace="http://FOO" 
        xmlns:foo="http://FOO"
        elementFormDefault="qualified">
        
        <element name="foo">
                <complexType>
                        <sequence>
                                <element name="bar.A" type="foo:type.A" />
                                <element name="bar.B" type="foo:type.B" />
                        </sequence>
                </complexType>    
        </element>  

        <complexType name="type.A">
                <complexContent>
                        <!-- This is OK, since the complete wildcard
                          is the wildcard of the base type. -->
                        <extension base="foo:base.type.A" />                                                                                    
                </complexContent>
        </complexType>    

        <complexType name="base.type.A">
                <anyAttribute namespace="##any" processContents="skip" />               
        </complexType>    

        <complexType name="type.B">
                <complexContent>
                        <extension base="foo:base.type.B">      
                                <!-- This is OK, since the complete wildcard is a union
                                  of "##any" and "http://FOO" = "##any". Thus the complete
                                  wildcard is equal to that one in the base class. -->
                                <anyAttribute namespace="http://FOO" processContents="skip" />
                        </extension>
                </complexContent>
        </complexType>    

        <complexType name="base.type.B">
                <anyAttribute namespace="##any" processContents="skip" />               
        </complexType>    

</schema>