arguments.hpp

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/*
  CLAW - a C++ Library Absolutely Wonderful
 
  CLAW is a free library without any particular aim but being useful to
  anyone.
 
  Copyright (C) 2005-2011 Julien Jorge
 
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.
 
  This library 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
  Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
  contact: julien.jorge@stuff-o-matic.com
*/
#ifndef __CLAW_ARGUMENTS_HPP__
#define __CLAW_ARGUMENTS_HPP__
 
#include <claw/ordered_set.hpp>
 
#include <map>
#include <string>
 
namespace claw
{
  class arguments
  {
  private:
    typedef std::map<std::string, std::list<std::string> >
        valued_arguments_map;
 
  public:
    arguments();
    explicit arguments(const std::string& prog_name);
    arguments(int& argc, char**& argv);
    arguments(int& argc, char**& argv,
              const claw::math::ordered_set<std::string>& allowed);
 
    void parse(int& argc, char**& argv);
    void parse(int& argc, char**& argv,
               const claw::math::ordered_set<std::string>& allowed);
 
    bool has_value(const std::string& arg_name) const;
    bool only_integer_values(const std::string& arg_name) const;
    bool only_real_values(const std::string& arg_name) const;
 
    const std::string& get_program_name() const;
 
    bool get_bool(const std::string& arg_name) const;
    int get_integer(const std::string& arg_name) const;
    double get_real(const std::string& arg_name) const;
    const std::string& get_string(const std::string& arg_name) const;
 
    std::list<int> get_all_of_integer(const std::string& arg_name) const;
    std::list<double> get_all_of_real(const std::string& arg_name) const;
    std::list<std::string>
    get_all_of_string(const std::string& arg_name) const;
 
    void add_argument(const std::string& arg);
 
  private:
    void parse(int& argc, char**& argv, bool always_allowed,
               const claw::math::ordered_set<std::string>& allowed);
    bool split_argument(const std::string& arg, std::string& name,
                        std::string& value) const;
 
    void remove_null_arguments(int& argc, char**& argv) const;
 
    void process_boolean(char*& arg, bool always_allowed,
                         const claw::math::ordered_set<std::string>& allowed);
 
  private:
    std::string m_program_name;

    claw::math::ordered_set<std::string> m_flags;

    valued_arguments_map m_pairs;
 
  }; // class arguments
}
 
#endif // __CLAW_ARGUMENTS_HPP__