1<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 2<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> 3 <xs:element name="books"> 4 <xs:complexType> 5 <xs:sequence> 6 <xs:element name="book" minOccurs="1" maxOccurs="unbounded"> 7 <xs:complexType> 8 <xs:sequence> 9 <xs:element name="title" type="xs:string"/> 10 <xs:element name="author" type="xs:string"/> 11 </xs:sequence> 12 <xs:attribute name="is-hardback" type="xs:boolean" default="false" use="optional" /> 13 </xs:complexType> 14 </xs:element> 15 </xs:sequence> 16 </xs:complexType> 17 </xs:element> 18</xs:schema> 19
