// -*- coding: utf-8 -*-
// Copyright (C) 2013, 2014 Laboratoire de Recherche et Développement de
// l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
//
// Spot 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 3 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#ifndef SPOT_TGBAALGOS_WORD_HH
# define SPOT_TGBAALGOS_WORD_HH

# include "emptiness.hh"

namespace spot
{
  class bdd_dict;

  /// \brief An infinite word stored as a lasso.
  struct SPOT_API tgba_word
  {
    tgba_word(const tgba_run_ptr run);
    void simplify();
    std::ostream& print(std::ostream& os, const bdd_dict_ptr& d) const;

    typedef std::list<bdd> seq_t;
    seq_t prefix;
    seq_t cycle;
  };

}

#endif // SPOT_TGBAALGOS_WORD_HH