xml_exp_visitor.hh

// xml_exp_visitor.hh: this file is part of the Vaucanson project.
//
// Vaucanson, a generic library for finite state machines.
//
// Copyright (C) 2006 The Vaucanson Group.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// The complete GNU General Public Licence Notice can be found as the
// `COPYING' file in the root directory.
//
// The Vaucanson Group consists of people listed in the `AUTHORS' file.
//

#include <vaucanson/config/system.hh>

#if not defined (VCSN_ALGEBRA_IMPLEMENTATION_SERIES_RAT_XML_EXP_VISITOR_HH) and \
    (not defined (VCSN_SANITY_CHECK) or defined (VCSN_USE_XML))
# define VCSN_ALGEBRA_IMPLEMENTATION_SERIES_RAT_XML_EXP_VISITOR_HH

# ifndef VCSN_USE_XML
#  error Vaucanson XML support is disabled.
# endif

# include <xercesc/dom/DOM.hpp>
# include <xercesc/util/XMLString.hpp>
# include <xercesc/util/PlatformUtils.hpp>
# include <vaucanson/tools/usual_macros.hh>
# include <string>
# include <cstddef>

# include <vaucanson/algebra/implementation/series/rat/nodes.hh>

namespace vcsn {

  namespace rat {

    template<typename M_, typename W_>
    class XmlExpVisitor : public ConstNodeVisitor<M_, W_>
    {
    protected:
      void
      sum_or_product(const Node<M_, W_>* left_, const Node<M_, W_>* right_);
      void
      weight_or_star(const Node<M_, W_>* node);

    public:
      XmlExpVisitor(xercesc::DOMDocument* doc, char* node_name) :
        doc_(doc),
        label_(doc_->createElement(STR2XML(node_name))),
        current_(label_)
      {}

      virtual void
      product(const Node<M_, W_>* left_, const Node<M_, W_>* right_);

      virtual void
      sum(const Node<M_, W_>* left_, const Node<M_, W_>* right_);

      virtual void
      star(const Node<M_, W_>* node);

      virtual void
      left_weight(const W_&, const Node<M_, W_>* node);

      virtual void
      right_weight(const W_&, const Node<M_, W_>* node);

      virtual void
      constant(const M_& m);

      virtual void zero();

      virtual void one();

      xercesc::DOMElement* get() const;

      xercesc::DOMDocument* set(xercesc::DOMDocument* v)
      {
        this->doc_ = v;
        return this->doc_;
      }

    protected:
      xercesc::DOMDocument*     doc_;
      xercesc::DOMElement*      label_;
      xercesc::DOMElement*      current_;
    };

  } // rat

} // vcsn

# ifndef VCSN_USE_INTERFACE_ONLY
#  include <vaucanson/algebra/implementation/series/rat/xml_exp_visitor.hxx>
# endif // VCSN_USE_INTERFACE_ONLY

#endif // ! VCSN_ALGEBRA_IMPLEMENTATION_SERIES_RAT_XML_EXP_VISITOR_HH &&
       // (! VCSN_SANITY_CHECK || VCSN_USE_XML)

---