VArguments.h

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/*                                              -*- mode:C++ -*-
  VArguments.h Command Line Argument registry
  Copyright (C) 2014 The Regents of the University of New Mexico.  All rights reserved.

  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 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
*/

#ifndef VARGUMENTS_H
#define VARGUMENTS_H

#include "itype.h"

namespace MFM
{
#define VARGUMENTS_MAX_SIZE 64

  typedef void (*VArgumentHandleValue)(const char*, void* arg);

  class VArguments
  {
  private:

    struct VArg
    {

      const char* m_description;

      const char* m_filter;

      const char* m_value;

      bool m_argsNeeded;

      bool m_appeared;

      void* m_handlerArg;

      VArgumentHandleValue m_function;

      VArg() : m_description(0), m_filter(0), m_value(0),
               m_argsNeeded(false), m_appeared(false),
               m_handlerArg(0), m_function(0)
      {

      }



    };

    VArg m_argDescriptors[VARGUMENTS_MAX_SIZE];

    u32 m_heldArguments;

  public:

    VArguments();

    void Die(const char * format, ...);

    void RegisterArgument(const char* description, const char* filter,
                          VArgumentHandleValue func, void* handlerArg,
                          bool runFunc);

    void RegisterSection(const char* label);

    void ProcessArguments(u32 argc, const char** argv);

    const char* Get(const char* argName) const;

    u32 GetInt(const char* argName) const;

    bool Appeared(const char* argName) const;

    void Usage() const;
  };
}

#endif /* VARGUMENTS_H */