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/******************************************************************************
*
* file: XorHandler.h
*
* Copyright (c) 2003, Michael E. Smoot .
* Copyright (c) 2004, Michael E. Smoot, Daniel Aarno.
* All rights reserved.
*
* See the file COPYING in the top directory of this distribution for
* more information.
*
* THE SOFTWARE IS PROVIDED _AS IS_, WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*****************************************************************************/
#ifndef TCLAP_XORHANDLER_H
#define TCLAP_XORHANDLER_H
#include <tclap/Arg.h>
#include <string>
#include <vector>
#include <algorithm>
#include <iostream>
namespace TCLAP {
/**
* This class handles lists of Arg's that are to be XOR'd on the command
* line. This is used by CmdLine and you shouldn't ever use it.
*/
class XorHandler
{
protected:
/**
* The list of of lists of Arg's to be or'd together.
*/
std::vector< std::vector<Arg*> > _orList;
public:
/**
* Constructor. Does nothing.
*/
XorHandler( ) : _orList(std::vector< std::vector<Arg*> >()) {}
/**
* Add a list of Arg*'s that will be xor'd together.
* \param ors - list of Arg* that will be xor'd.
*/
void add( std::vector<Arg*>& ors );
/**
* Checks whether the specified Arg is in one of the xor lists and
* if it does match one, returns the size of the xor list that the
* Arg matched. If the Arg matches, then it also sets the rest of
* the Arg's in the list. You shouldn't use this.
* \param a - The Arg to be checked.
*/
int check( const Arg* a );
/**
* Returns the XOR specific short usage.
*/
std::string shortUsage();
/**
* Prints the XOR specific long usage.
* \param os - Stream to print to.
*/
void printLongUsage(std::ostream& os);
/**
* Simply checks whether the Arg is contained in one of the arg
* lists.
* \param a - The Arg to be checked.
*/
bool contains( const Arg* a );
std::vector< std::vector<Arg*> >& getXorList();
};
//////////////////////////////////////////////////////////////////////
//BEGIN XOR.cpp
//////////////////////////////////////////////////////////////////////
inline void XorHandler::add( std::vector<Arg*>& ors )
{
_orList.push_back( ors );
}
inline int XorHandler::check( const Arg* a )
{
// iterate over each XOR list
for ( int i = 0; static_cast<unsigned int>(i) < _orList.size(); i++ )
{
// if the XOR list contains the arg..
ArgVectorIterator ait = std::find( _orList[i].begin(),
_orList[i].end(), a );
if ( ait != _orList[i].end() )
{
// first check to see if a mutually exclusive switch
// has not already been set
for ( ArgVectorIterator it = _orList[i].begin();
it != _orList[i].end();
it++ )
if ( a != (*it) && (*it)->isSet() )
throw(CmdLineParseException(
"Mutually exclusive argument already set!",
(*it)->toString()));
// go through and set each arg that is not a
for ( ArgVectorIterator it = _orList[i].begin();
it != _orList[i].end();
it++ )
if ( a != (*it) )
(*it)->xorSet();
// return the number of required args that have now been set
if ( (*ait)->allowMore() )
return 0;
else
return static_cast<int>(_orList[i].size());
}
}
if ( a->isRequired() )
return 1;
else
return 0;
}
inline bool XorHandler::contains( const Arg* a )
{
for ( int i = 0; static_cast<unsigned int>(i) < _orList.size(); i++ )
for ( ArgVectorIterator it = _orList[i].begin();
it != _orList[i].end();
it++ )
if ( a == (*it) )
return true;
return false;
}
inline std::vector< std::vector<Arg*> >& XorHandler::getXorList()
{
return _orList;
}
//////////////////////////////////////////////////////////////////////
//END XOR.cpp
//////////////////////////////////////////////////////////////////////
} //namespace TCLAP
#endif
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