<?xml version="1.0" encoding="UTF-8"?>

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

           xmlns:xi="http://www.w3.org/2001/XInclude"

           targetNamespace="http://www.w3.org/2001/XInclude"

           finalDefault="extension">

  <xs:element name="include" type="xi:includeType" />

  <xs:complexType name="includeType" mixed="true">

    <xs:choice minOccurs='0' maxOccurs='unbounded' >

      <xs:element ref='xi:fallback' />

      <xs:any namespace='##other' processContents='lax' />

      <xs:any namespace='##local' processContents='lax' />

    </xs:choice>

    <xs:attribute name="href" use="optional" type="xs:anyURI"/>

    <xs:attribute name="parse" use="optional" default="xml"

                  type="xi:parseType" />

    <xs:attribute name="xpointer" use="optional" type="xs:string"/>

    <xs:attribute name="encoding" use="optional" type="xs:string"/>

    <xs:attribute name="accept" use="optional" type="xs:string"/>

    <xs:attribute name="accept-language" use="optional" type="xs:string"/>

    <xs:anyAttribute namespace="##other" processContents="lax"/>

  </xs:complexType>

  <xs:simpleType name="parseType">

    <xs:restriction base="xs:token">

      <xs:enumeration value="xml"/>

      <xs:enumeration value="text"/>

    </xs:restriction>

  </xs:simpleType>

  <xs:element name="fallback" type="xi:fallbackType" />

  <xs:complexType name="fallbackType" mixed="true">

    <xs:choice minOccurs="0" maxOccurs="unbounded">

      <xs:element ref="xi:include"/>

      <xs:any namespace="##other" processContents="lax"/>

      <xs:any namespace="##local" processContents="lax"/>

    </xs:choice>

    <xs:anyAttribute namespace="##other" processContents="lax" />

  </xs:complexType>

</xs:schema>