freepascal.compiler/utils/fpdoc/examples/project/sample-project.xml

<docproject>
  <packages>
    <!-- Multiple packages can be entered. 
         If only one is specified, it is selected. 
         "name" is a mandatory attribute
         a "units" tag is required, and a "descriptions" tag as well
    -->
    <package name="fpdocsample" output="doc" contentfile="fpdocsample.cnt">
      <!-- All input files, one "unit" tag per unit -->
      <units>
        <!-- "file" is a mandatory attribute, "options" is not mandatory -->
        <unit file="../simple/testunit.pp" options="-S2"/>
      </units>
      <descriptions>
        <!-- Description files here. One "description" tag per file.
            "file" is the only mandatory attribute -->
        <description file="../simple/testunit.xml"/>
      </descriptions>
    </package>
  </packages>
  <options>
    <!-- All command-line options can be specified here with the same name
         and value as on the actual command-line. Boolean options must have
         a value of 'true', '1' or 'yes' -->
    <option name="format" value="html"/>
    <option name="hide-protected" value="true"/>
    <option name="footer-date" value="yyyy-mm-dd"/>
  </options>
</docproject>