1<?xml version="1.0"?> 2<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> 3 <xs:complexType name="length1"> 4 <xs:simpleContent> 5 <xs:extension base="xs:nonNegativeInteger"> 6 <xs:attribute name="unit" type="xs:NMTOKEN"/> 7 </xs:extension> 8 </xs:simpleContent> 9 </xs:complexType> 10 <xs:element name="width" type="length1"/> 11</xs:schema> 12