libopc/third_party/libxml2-2.7.7/test/schemas/mixed1_0.xsd

<xs:schema xmlns:xs='http://www.w3.org/2001/XMLSchema'>
 <xs:element name='my'>
  <xs:complexType mixed='true'>
   <xs:attribute name='myattr' type='xs:string' use='required'/>
  </xs:complexType>
 </xs:element>
</xs:schema>