source: code/branches/shader/src/util/ArgReader.cc @ 2490

/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *                    > www.orxonox.net <
 *
 *
 *   License notice:
 *
 *   This program 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 2
 *   of the License, or (at your option) any later version.
 *
 *   This program 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, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *   Author:
 *      Benjamin Knecht <beni_at_orxonox.net>, (C) 2007
 *   Co-authors:
 *      ...
 *
 */

/**
 @file  ArgReader.cc
 @brief Argument Reader
 */

#include "ArgReader.h"

#include <iostream>

ArgReader::ArgReader(int argc, char** argv)
{
  counter_ = argc;
  arguments_ = argv;
  fail_ = false;
  errorStr_ = "";
}

void ArgReader::checkArgument(std::string option, std::string &string, bool must)
{
  int argpos = checkOption(option) + 1;
  if(argpos != 0)
  {
    string = arguments_[argpos];
  }
  else
  {
    if(must) {
      errorStr_ = errorStr_ + "Cannot find mandatory argument \"" + option + "\"\n";
      fail_ = true;
    }
  }

}

void ArgReader::checkArgument(std::string option, int &integer, bool must)
{
  int argpos = checkOption(option) + 1;
  if(argpos != 0)
  {
    integer = atoi(arguments_[argpos]);
  }
  else
  {
    if(must) {
      errorStr_ = errorStr_ + "Cannot find mandatory argument \"" + option + "\"\n";
      fail_ = true;
    }
  }
}

void ArgReader::checkArgument(std::string option, float &floating, bool must)
{
  int argpos = checkOption(option) + 1;
  if(argpos != 0)
  {
    floating = (float)atof(arguments_[argpos]);
  }
  else
  {
    if(must) {
      errorStr_ = errorStr_ + "Cannot find mandatory argument \"" + option + "\"\n";
      fail_ = true;
    }
  }
}

int ArgReader::checkOption(std::string option)
{
  for(int i = 1; i < counter_; i++)
  {
    if(arguments_[i] == "--" + option)
        return i;
  }
  return -1;
}

bool ArgReader::errorHandling()
{
  if(fail_)
    std::cout << errorStr_;
  return fail_;
}