<glob pattern="*.exp"/>
    <sub-class-of type="text/plain"/>
  </mime-type>

  <mime-type type="text/x-forth">
    <_comment>Forth source code</_comment>
    <glob pattern="*.4th"/>
    <sub-class-of type="text/plain"/>
   </mime-type>

  <mime-type type="text/x-fortran">
    <_comment>Fortran source code</_comment>
    <glob pattern="*.f"/>
    <glob pattern="*.F"/>