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/*=========================================================================
Program: ITK-SNAP
Module: $RCSfile: CommandLineArgumentParser.cxx,v $
Language: C++
Date: $Date: 2008/12/01 21:27:25 $
Version: $Revision: 1.4 $
Copyright (c) 2007 Paul A. Yushkevich
This file is part of ITK-SNAP
ITK-SNAP 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.
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, see <http://www.gnu.org/licenses/>.
-----
Copyright (c) 2003 Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "CommandLineArgumentParser.h"
#include <assert.h>
#include <iostream>
using namespace std;
void
CommandLineArgumentParser
::AddOption(const char *name, int nParameters)
{
// Create a structure for the command
OptionType option;
option.CommonName = string(name);
option.NumberOfParameters = nParameters;
// Add the option to the map
m_OptionMap[string(name)] = option;
}
void
CommandLineArgumentParser
::AddSynonim(const char *option, const char *synonim)
{
string strOption(option);
string strSynonim(synonim);
// The option should exist!
assert(m_OptionMap.find(strOption) != m_OptionMap.end());
// Create a new option object
OptionType o;
o.NumberOfParameters = m_OptionMap[strOption].NumberOfParameters;
o.CommonName = strOption;
// Insert the option into the map
m_OptionMap[strSynonim] = o;
}
bool
CommandLineArgumentParser
::TryParseCommandLine(int argc, char *argv[],
CommandLineArgumentParseResult &outResult,
bool failOnUnknownTrailingParameters, int &argc_out)
{
// Clear the result
outResult.Clear();
// Go through the arguments
for(argc_out=1; argc_out < argc; argc_out++)
{
// Get the next argument
string arg(argv[argc_out]);
// Check if the argument is known
if(m_OptionMap.find(arg) == m_OptionMap.end())
{
if(failOnUnknownTrailingParameters)
{
// Unknown argument found
cerr << "Unrecognized command line option '" << arg << "'" << endl;
return false;
}
else if(arg[0] == '-')
{
cerr << "Ignoring unknown command line option '" << arg << "'" << endl;
continue;
}
else
{
return true;
}
}
// Check if the number of parameters is correct
int nParameters = m_OptionMap[arg].NumberOfParameters;
if(nParameters > 0 && argc_out+nParameters >= argc)
{
// Too few parameters
cerr << "Too few parameters to command line option '" << arg
<< "'" << endl;
return false;
}
// If the number of parameters is negative, read all parameters that are
// not recognized options
if(nParameters < 0)
{
nParameters = 0;
for(int j = argc_out+1; j < argc; j++, nParameters++)
if(m_OptionMap.find(argv[j]) != m_OptionMap.end())
break;
}
// Tell the result that the option has been encountered
outResult.AddOption(m_OptionMap[arg].CommonName,nParameters);
// Pass in the parameters
for(int j=0;j<nParameters;j++,argc_out++)
outResult.AddParameter(m_OptionMap[arg].CommonName,string(argv[argc_out+1]));
}
// Everything is good
return true;
}
bool
CommandLineArgumentParseResult
::IsOptionPresent(const char *option)
{
return (m_OptionMap.find(string(option)) != m_OptionMap.end());
}
const char *
CommandLineArgumentParseResult
::GetOptionParameter(const char *option, unsigned int number)
{
assert(IsOptionPresent(option));
assert(number < m_OptionMap[string(option)].size());
return m_OptionMap[string(option)][number].c_str();
}
int
CommandLineArgumentParseResult
::GetNumberOfOptionParameters(const char *option)
{
assert(IsOptionPresent(option));
return m_OptionMap[string(option)].size();
}
void
CommandLineArgumentParseResult
::Clear()
{
m_OptionMap.clear();
}
void
CommandLineArgumentParseResult
::AddOption(const std::string &option, int nParms)
{
ParameterArrayType pat;
pat.reserve(nParms);
m_OptionMap[option] = pat;
}
void
CommandLineArgumentParseResult
::AddParameter(const std::string &option, const std::string ¶meter)
{
m_OptionMap[option].push_back(parameter);
}
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