radiomanifest-spec/shows.xsd

<?xml version="1.0" encoding="UTF-8" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name="shows">
        <xs:complexType>
            <xs:sequence>
                <xs:element name="show" maxOccurs="unbounded" minOccurs="0">
                    <xs:complexType>
                        <xs:all>
                            <xs:element name="name" type="xs:string" />
                            <xs:element name="website" type="srctype" minOccurs="0" />
                            <xs:element name="feed" type="srctype" minOccurs="0" />
                            <xs:element name="schedule" type="srctype" minOccurs="0" />
                        </xs:all>
                    </xs:complexType>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
    </xs:element>

    <xs:simpleType name="srctype">
        <xs:restriction base="xs:anyURI">
            <xs:minLength value="1" />
        </xs:restriction>
    </xs:simpleType>

</xs:schema>