// Copyright (C) 2010, 2012 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 2 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 Spot; see the file COPYING.  If not, write to the Free
// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.

#ifndef SPOT_LTLPARSE_LTLFILE_HH
# define SPOT_LTLPARSE_LTLFILE_HH
#include <fstream>
#include "ltlast/formula.hh"


namespace spot
{
  namespace ltl
  {

    /// \brief Read LTL formulae from a file, one by one
    /// \ingroup ltl_io
    class ltl_file
    {
    public:
      ltl_file(const std::string& filename);
      ltl_file(const char* filename);
      /// Return the next parsed LTL formula, and 0 at end of file.
      const formula* next();
    private:
      std::ifstream in;
    };

  }
}

#endif