optionmap.hh

// -*- coding: utf-8 -*-
// Copyright (C) by the Spot authors, see the AUTHORS file for details.
//
// 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 <spot/misc/common.hh>
#include <string>
#include <map>
#include <iosfwd>
#include <set>
 
namespace spot
{
  class SPOT_API option_map
  {
  public:
 
    const char* parse_options(const char* options);
 
    int get(const char* option, int def = 0) const;
 
    std::string get_str(const char* option, std::string def = {}) const;
 
    int operator[](const char* option) const;
 
    int set(const char* option, int val, int def = 0);
 
    void set_if_unset(const char* option, int val);
 
    std::string set_str(const char* option,
                        std::string val, std::string def = {});
 
    void report_unused_options() const;
 
    void set(const option_map& o);
 
    int& operator[](const char* option);
 
    friend SPOT_API std::ostream&
      operator<<(std::ostream& os, const option_map& m);
 
  private:
    std::map<std::string, int> options_;
    std::map<std::string, std::string> options_str_;
    // Unused values.  Initially they will store all options, and they
    // will be erased as they are used.  The resulting set can be used
    // for diagnosing errors.
    mutable std::set<std::string> unused_;
    mutable bool is_used_ = false;
 
    void set_(const std::string&, int val);
    void set_str_(const std::string&, const std::string& val);
  };
}