The XincludeFilter processes a stream for Xinclude tags, and
            processes the inclusions. This is useful for processing modular XML files. DocBook book
            files are one example of modular XML files. Usage example:
<!--
  Render a DocBook book file called manual.xml, which
  contains Xinclude tags to include individual book sections.
  -->
<copy todir="${manual.dest.dir}">
  <filterchain>
    <xincludefilter basedir="${manual.src.dir}" />
    <xsltfilter style="${manual.src.dir}/html.xsl">
      <param name="base.dir" expression="${manual.dest.dir}/" />
    </xsltfilter>
  </filterchain>
  <fileset dir="${manual.src.dir}">
    <include name="manual.xml" />
  </fileset>
</copy>
        Table E.16: Attributes for the <xincludefilter> tag 
| Name | Type | Description | Default | Required | 
|---|---|---|---|---|
basedir | String | The working directory from which to process the
                                Xincludes. Relative pathnames in the include tags
                            are based on this location.  | Project basedir | No | 
resolveexternals | Boolean | Whether to resolve entities. (see this link for details) | false | No |