// -*- coding: utf-8 -*-
// Copyright (C) 2012, 2013, 2015 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/>.

#pragma once

#include "formula.hh"
#include "misc/hash.hh"
#include <map>

namespace spot
{
  enum relabeling_style { Abc, Pnn };

  typedef std::map<formula, formula> relabeling_map;

  /// \ingroup tl_rewriting
  /// \brief Relabel the atomic propositions in a formula.
  ///
  /// If \a m is non-null, it is filled with correspondence
  /// between the new names (keys) and the old names (values).
  SPOT_API
  formula relabel(formula f, relabeling_style style,
		  relabeling_map* m = nullptr);


  /// \ingroup tl_rewriting
  /// \brief Relabel Boolean subexpressions in a formula using
  /// atomic propositions.
  ///
  /// If \a m is non-null, it is filled with correspondence
  /// between the new names (keys) and the old names (values).
  SPOT_API
  formula relabel_bse(formula f, relabeling_style style,
		      relabeling_map* m = nullptr);
}