source: trunk/yat/OptionHelp.cc @ 1336

// $Id: OptionHelp.cc 2384 2010-12-22 14:03:36Z peter $

/*
  Copyright (C) 2007, 2008 Jari Häkkinen, Peter Johansson
  Copyright (C) 2009, 2010 Peter Johansson

  This file is part of the yat library, http://dev.thep.lu.se/yat

  The yat library 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.

  The yat 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
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with yat. If not, see <http://www.gnu.org/licenses/>.
*/

#include "OptionHelp.h"
#include "CommandLine.h"

#include <cstdlib>
#include <iostream>
#include <string>

namespace theplu {
namespace yat {
namespace utility {


  OptionHelp::OptionHelp(CommandLine& cmd, std::string flag, 
                         std::string desc)
    : OptionSwitch(cmd, flag, desc, false), synopsis_("")
  {
  }


  void OptionHelp::do_parse2(std::vector<std::string>::iterator first, 
                               std::vector<std::string>::iterator last)
  {
    if (usage_.empty()) 
      std::cout << "Usage: " << cmd().program_name() << " [OPTION]...\n\n";
    else
      std::cout << usage_ << "\n"; 
    std::cout << synopsis_ << "\n";
    std::cout << cmd() << "\n"; 
    std::cout << post_cmd_;
    exit(EXIT_SUCCESS);
  }


  std::string& OptionHelp::post_arguments(void)
  {
    return post_cmd_;
  }


  std::string& OptionHelp::synopsis(void)
  {
    return synopsis_;
  }

  std::string& OptionHelp::usage(void)
  {
    return usage_;
  }

}}} // of namespace utility, yat, and theplu