1 <?xml version="1.0" encoding="UTF-8"?>

     2 <xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">

     3   <xs:element name="display-names">

     4     <xs:complexType>

     5       <xs:sequence>

     6         <xs:element name="abbrev" maxOccurs="unbounded" minOccurs="0">

     7           <xs:complexType>

     8             <xs:simpleContent>

     9               <xs:extension base="xs:string">

    10                 <xs:attribute type="xs:string" name="name" use="required"/>

    11                 <xs:attribute type="xs:string" name="abbrev" use="required"/>

    12               </xs:extension>

    13             </xs:simpleContent>

    14           </xs:complexType>

    15         </xs:element>

    16       </xs:sequence>

    17       <xs:attribute type="xs:string" name="font" use="optional"/>

    18     </xs:complexType>

    19   </xs:element>

    20 </xs:schema>