<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">

  <xsd:element name="doxygenindex" type="DoxygenType"/>

  <xsd:complexType name="DoxygenType">

    <xsd:sequence>

      <xsd:element name="compound" type="CompoundType" minOccurs="0" maxOccurs="unbounded"/>

    </xsd:sequence>

    <xsd:attribute name="version" type="xsd:string" use="required"/>

  </xsd:complexType>

  <xsd:complexType name="CompoundType">

    <xsd:sequence>

      <xsd:element name="name" type="xsd:string"/>

      <xsd:element name="member" type="MemberType" minOccurs="0" maxOccurs="unbounded"/>

    </xsd:sequence>

    <xsd:attribute name="refid" type="xsd:string" use="required"/>

    <xsd:attribute name="kind" type="CompoundKind" use="required"/>

  </xsd:complexType>

  <xsd:complexType name="MemberType">

    <xsd:sequence>

      <xsd:element name="name" type="xsd:string"/>

    </xsd:sequence>

    <xsd:attribute name="refid" type="xsd:string" use="required"/>

    <xsd:attribute name="kind" type="MemberKind" use="required"/>

  </xsd:complexType>

  <xsd:simpleType name="CompoundKind">

    <xsd:restriction base="xsd:string">

      <xsd:enumeration value="class"/>

      <xsd:enumeration value="struct"/>

      <xsd:enumeration value="union"/>

      <xsd:enumeration value="interface"/>

      <xsd:enumeration value="protocol"/>

      <xsd:enumeration value="category"/>

      <xsd:enumeration value="exception"/>

      <xsd:enumeration value="file"/>

      <xsd:enumeration value="namespace"/>

      <xsd:enumeration value="group"/>

      <xsd:enumeration value="page"/>

      <xsd:enumeration value="example"/>

      <xsd:enumeration value="dir"/>

    </xsd:restriction>

  </xsd:simpleType>

  <xsd:simpleType name="MemberKind">

    <xsd:restriction base="xsd:string">

      <xsd:enumeration value="define"/>

      <xsd:enumeration value="property"/>

      <xsd:enumeration value="event"/>

      <xsd:enumeration value="variable"/>

      <xsd:enumeration value="typedef"/>

      <xsd:enumeration value="enum"/>

      <xsd:enumeration value="enumvalue"/>

      <xsd:enumeration value="function"/>

      <xsd:enumeration value="signal"/>

      <xsd:enumeration value="prototype"/>

      <xsd:enumeration value="friend"/>

      <xsd:enumeration value="dcop"/>

      <xsd:enumeration value="slot"/>

    </xsd:restriction>

  </xsd:simpleType>

</xsd:schema>