Parliament.xsd

<?xml version="1.0" encoding="UTF-8" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.parlamento.pt"
elementFormDefault="qualified"
xmlns="http://www.parlamento.pt">

	<xs:element name="parliament" type="parliamentType">
	  <xs:keyref name="politicianCodeKeyRef" refer="politicianCodeKey">
	    <xs:selector xpath="parliament-interventions/session/speech"/>
	    <xs:field xpath="@politician"/>
	  </xs:keyref>
	  <xs:key name="politicianCodeKey">
	    <xs:selector xpath="politicians/politician"/>
	    <xs:field xpath="@code"/>
	  </xs:key>
	</xs:element>

	<xs:complexType name="politicianType">
		<xs:simpleContent>
			<xs:extension base="politicianName">
				<xs:attribute name="code" type="xs:integer" use="required"/>
				<xs:attribute name="party" type="xs:string"/>
				<xs:attribute name="age" type="xs:positiveInteger"/>
			</xs:extension>
		</xs:simpleContent>
	</xs:complexType>

	<xs:simpleType name="politicianName">
		<xs:restriction base="xs:string">
			<xs:pattern value="(([\p{Lu}][\p{L}]*)( [-'\p{L}]*)+)"/>
		</xs:restriction>
	</xs:simpleType>

	<xs:complexType name="speechType">
		<xs:simpleContent>
			<xs:extension base="xs:string">
				<xs:attribute name="order" type="xs:positiveInteger"/>
				<xs:attribute name="politician" type="xs:integer"/>
			</xs:extension>
		</xs:simpleContent>
	</xs:complexType>

	<xs:complexType name="sessionType">
		<xs:sequence>
			<xs:element name="speech" type="speechType" maxOccurs="unbounded"/>
		</xs:sequence>
		<xs:attribute name="date" type="xs:date" use="required"/>
	</xs:complexType>

	<xs:complexType name="parliament-interventionsType">
		<xs:sequence>
			<xs:element name="session" type="sessionType" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="politiciansType">
		<xs:sequence>
			<xs:element name="politician" type="politicianType" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="parliamentType">
		<xs:sequence>
			<xs:choice maxOccurs="unbounded">
				<xs:element name="parliament-interventions" type="parliament-interventionsType"/>
				<xs:element name="politicians" type="politiciansType" />
			</xs:choice>
		</xs:sequence>
	</xs:complexType>



</xs:schema>