<!-- ...................................................................... -->
    <!-- XHTML Base Element Module  ........................................... -->
    <!-- file: xhtml-base-1.mod

         This is XHTML, a reformulation of HTML as a modular XML application.
         Copyright 1998-2005 W3C (MIT, ERCIM, Keio), All Rights Reserved.
         Revision: $Id: xhtml-base-1.mod,v 1.1 2010/07/29 13:42:46 bertails Exp $ SMI

         This DTD module is identified by the PUBLIC and SYSTEM identifiers:

           PUBLIC "-//W3C//ELEMENTS XHTML Base Element 1.0//EN"
           SYSTEM "http://www.w3.org/MarkUp/DTD/xhtml-base-1.mod"

         Revisions:
         (none)
         ....................................................................... -->

    <!-- Base element

            base

         This module declares the base element type and its attributes,
         used to define a base URI against which relative URIs in the
         document will be resolved.

         Note that this module also redeclares the content model for
         the head element to include the base element.
    -->

    <!-- base: Document Base URI ........................... -->

    <!ENTITY % base.element  "INCLUDE" ><![%base.element;[<!ENTITY % base.content  "EMPTY" ><!ENTITY % base.qname  "base" ><!ELEMENT %base.qname;  %base.content; ><!-- end of base.element -->]]>

    <!ENTITY % base.attlist  "INCLUDE" ><![%base.attlist;[<!ATTLIST %base.qname;%XHTML.xmlns.attrib;href         %URI.datatype;           #REQUIRED><!-- end of base.attlist -->]]>

    <!ENTITY % head.content"( %HeadOpts.mix;,
     ( ( %title.qname;, %HeadOpts.mix;, ( %base.qname;, %HeadOpts.mix; )? )
     | ( %base.qname;, %HeadOpts.mix;, ( %title.qname;, %HeadOpts.mix; ))))">

    <!-- end of xhtml-base-1.mod -->
