1<?xml version="1.0" encoding="UTF-8"?>
2<!-- $Header: /home/cvsroot/w3c-xml-schema/user/examples/first-user-dt.xsd,v 1.1 2001/11/01 12:27:47 vdv Exp $ -->
3<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
4
5	<xs:simpleType name="string255">
6		<xs:restriction base="xs:token">
7			<xs:maxLength value="255"/>
8		</xs:restriction>
9	</xs:simpleType>
10	<xs:simpleType name="string32">
11		<xs:restriction base="xs:token">
12			<xs:maxLength value="32"/>
13		</xs:restriction>
14	</xs:simpleType>
15	<xs:simpleType name="isbn">
16		<xs:restriction base="xs:unsignedLong">
17			<xs:totalDigits value="10"/>
18		</xs:restriction>
19	</xs:simpleType>
20	<xs:simpleType name="supportedLanguages">
21		<xs:restriction base="xs:language">
22			<xs:enumeration value="en"/>
23			<xs:enumeration value="es"/>
24		</xs:restriction>
25	</xs:simpleType>
26	<xs:element name="name" type="string32"/>
27	<xs:element name="qualification" type="string255"/>
28	<xs:element name="born" type="xs:date"/>
29	<xs:element name="dead" type="xs:date"/>
30	<xs:element name="isbn" type="isbn"/>
31
32	<xs:attribute name="id" type="xs:ID"/>
33	<xs:attribute name="available" type="xs:boolean"/>
34	<xs:attribute name="lang" type="supportedLanguages"/>
35
36	<xs:element name="title">
37		<xs:complexType>
38			<xs:simpleContent>
39				<xs:extension base="string255">
40					<xs:attribute ref="lang"/>
41				</xs:extension>
42			</xs:simpleContent>
43		</xs:complexType>
44	</xs:element>
45
46	<xs:element name="library">
47		<xs:complexType>
48			<xs:sequence>
49				<xs:element ref="book" maxOccurs="unbounded"/>
50			</xs:sequence>
51		</xs:complexType>
52	</xs:element>
53
54	<xs:element name="author">
55		<xs:complexType>
56			<xs:sequence>
57				<xs:element ref="name"/>
58				<xs:element ref="born"/>
59				<xs:element ref="dead" minOccurs="0"/>
60			</xs:sequence>
61			<xs:attribute ref="id"/>
62		</xs:complexType>
63	</xs:element>
64
65	<xs:element name="book">
66		<xs:complexType>
67			<xs:sequence>
68				<xs:element ref="isbn"/>
69				<xs:element ref="title"/>
70				<xs:element ref="author" minOccurs="0" maxOccurs="unbounded"/>
71				<xs:element ref="character" minOccurs="0" maxOccurs="unbounded"/>
72			</xs:sequence>
73			<xs:attribute ref="id"/>
74			<xs:attribute ref="available"/>
75		</xs:complexType>
76	</xs:element>
77
78	<xs:element name="character">
79		<xs:complexType>
80			<xs:sequence>
81				<xs:element ref="name"/>
82				<xs:element ref="born"/>
83				<xs:element ref="qualification"/>
84			</xs:sequence>
85			<xs:attribute ref="id"/>
86		</xs:complexType>
87	</xs:element>
88
89</xs:schema>
90