// -*- coding: utf-8 -*-
// Copyright (C) 2008, 2009, 2012, 2015, 2016 Laboratoire de Recherche
// et Développement de l'Epita (LRDE).
// Copyright (C) 2003 Laboratoire d'Informatique de Paris 6
// (LIP6), département Systèmes Répartis Coopératifs (SRC), Université
// Pierre et Marie Curie.
//
// 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/>.

#include <iostream>
#include <cassert>
#include <cstdlib>
#include <cstring>
#include <spot/tl/parse.hh>
#include <spot/tl/dot.hh>

static void
syntax(char* prog)
{
  std::cerr << prog << " [-d] formula" << std::endl;
  exit(2);
}

int
main(int argc, char** argv)
{
  int exit_code = 0;

  if (argc < 2)
    syntax(argv[0]);

  bool debug = false;
  int formula_index = 1;

  if (!strcmp(argv[1], "-d"))
    {
      debug = true;
      if (argc < 3)
        syntax(argv[0]);
      formula_index = 2;
    }

  {
    spot::environment& env(spot::default_environment::instance());

    auto f = [&]()
    {
      auto pf = spot::parse_infix_psl(argv[formula_index], env, debug);
      exit_code = pf.format_errors(std::cerr);
      return pf.f;
    }();

    if (f)
      {
#ifdef DOTTY
        spot::print_dot_psl(std::cout, f);
#else
        f.dump(std::cout) << std::endl;
#endif
      }
    else
      {
        exit_code = 1;
      }

  }
  assert(spot::fnode::instances_check());
  return exit_code;
}