- plusSym
  - timesSym
  - ...

  * data/vaucanson.xsd: Here.
  * include/vaucanson/algebra/implementation/monoid/free_monoid.hh:
  Since we need to create the monoid before parsing its content, we need
  to update the representation after its creation. So set_representation
  should be public (or friendly)
  * include/vaucanson/xml/builders.hh: Here.
  * include/vaucanson/xml/builders.hxx: Here.
  * include/vaucanson/xml/handlers.hh: Here.
  * include/vaucanson/xml/handlers.hxx: Here.
  * include/vaucanson/xml/printers.hxx: Here.
  * include/vaucanson/xml/xmleq.hh: Here.
  * include/vaucanson/xml/xmleq.hxx: Here.