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// -*- Mode: c++; c-basic-offset: 4; tab-width: 4; -*-
/******************************************************************************
*
* file: UnlabeledMultiArg.h
*
* Copyright (c) 2003, Michael E. Smoot.
* Copyright (c) 2017, Google LLC
* 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_MULTIPLE_UNLABELED_ARGUMENT_H
#define TCLAP_MULTIPLE_UNLABELED_ARGUMENT_H
#include <string>
#include <vector>
#include <tclap/MultiArg.h>
#include <tclap/OptionalUnlabeledTracker.h>
namespace TCLAP {
/**
* Just like a MultiArg, except that the arguments are unlabeled. Basically,
* this Arg will slurp up everything that hasn't been matched to another
* Arg.
*/
template<class T>
class UnlabeledMultiArg : public MultiArg<T>
{
// If compiler has two stage name lookup (as gcc >= 3.4 does)
// this is required to prevent undef. symbols
using MultiArg<T>::_ignoreable;
using MultiArg<T>::_hasBlanks;
using MultiArg<T>::_extractValue;
using MultiArg<T>::_typeDesc;
using MultiArg<T>::_name;
using MultiArg<T>::_description;
using MultiArg<T>::_alreadySet;
using MultiArg<T>::toString;
public:
/**
* Constructor.
* \param name - The name of the Arg. Note that this is used for
* identification, not as a long flag.
* \param desc - A description of what the argument is for or
* does.
* \param req - Whether the argument is required on the command
* line.
* \param typeDesc - A short, human readable description of the
* type that this object expects. This is used in the generation
* of the USAGE statement. The goal is to be helpful to the end user
* of the program.
* \param ignoreable - Whether or not this argument can be ignored
* using the "--" flag.
* \param v - An optional visitor. You probably should not
* use this unless you have a very good reason.
*/
UnlabeledMultiArg( const std::string& name,
const std::string& desc,
bool req,
const std::string& typeDesc,
bool ignoreable = false,
Visitor* v = NULL );
/**
* Constructor.
* \param name - The name of the Arg. Note that this is used for
* identification, not as a long flag.
* \param desc - A description of what the argument is for or
* does.
* \param req - Whether the argument is required on the command
* line.
* \param typeDesc - A short, human readable description of the
* type that this object expects. This is used in the generation
* of the USAGE statement. The goal is to be helpful to the end user
* of the program.
* \param parser - A CmdLine parser object to add this Arg to
* \param ignoreable - Whether or not this argument can be ignored
* using the "--" flag.
* \param v - An optional visitor. You probably should not
* use this unless you have a very good reason.
*/
UnlabeledMultiArg( const std::string& name,
const std::string& desc,
bool req,
const std::string& typeDesc,
CmdLineInterface& parser,
bool ignoreable = false,
Visitor* v = NULL );
/**
* Constructor.
* \param name - The name of the Arg. Note that this is used for
* identification, not as a long flag.
* \param desc - A description of what the argument is for or
* does.
* \param req - Whether the argument is required on the command
* line.
* \param constraint - A pointer to a Constraint object used
* to constrain this Arg.
* \param ignoreable - Whether or not this argument can be ignored
* using the "--" flag.
* \param v - An optional visitor. You probably should not
* use this unless you have a very good reason.
*/
UnlabeledMultiArg( const std::string& name,
const std::string& desc,
bool req,
Constraint<T>* constraint,
bool ignoreable = false,
Visitor* v = NULL );
/**
* Constructor.
* \param name - The name of the Arg. Note that this is used for
* identification, not as a long flag.
* \param desc - A description of what the argument is for or
* does.
* \param req - Whether the argument is required on the command
* line.
* \param constraint - A pointer to a Constraint object used
* to constrain this Arg.
* \param parser - A CmdLine parser object to add this Arg to
* \param ignoreable - Whether or not this argument can be ignored
* using the "--" flag.
* \param v - An optional visitor. You probably should not
* use this unless you have a very good reason.
*/
UnlabeledMultiArg( const std::string& name,
const std::string& desc,
bool req,
Constraint<T>* constraint,
CmdLineInterface& parser,
bool ignoreable = false,
Visitor* v = NULL );
/**
* Handles the processing of the argument.
* This re-implements the Arg version of this method to set the
* _value of the argument appropriately. It knows the difference
* between labeled and unlabeled.
* \param i - Pointer the the current argument in the list.
* \param args - Mutable list of strings. Passed from main().
*/
virtual bool processArg(int* i, std::vector<std::string>& args);
/**
* Returns the a short id string. Used in the usage.
* \param val - value to be used.
*/
virtual std::string shortID(const std::string& val="val") const;
/**
* Returns the a long id string. Used in the usage.
* \param val - value to be used.
*/
virtual std::string longID(const std::string& val="val") const;
/**
* Operator ==.
* \param a - The Arg to be compared to this.
*/
virtual bool operator==(const Arg& a) const;
/**
* Pushes this to back of list rather than front.
* \param argList - The list this should be added to.
*/
virtual void addToList( std::list<Arg*>& argList ) const;
};
template<class T>
UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string& name,
const std::string& desc,
bool req,
const std::string& typeDesc,
bool ignoreable,
Visitor* v)
: MultiArg<T>("", name, desc, req, typeDesc, v)
{
_ignoreable = ignoreable;
OptionalUnlabeledTracker::check(true, toString());
}
template<class T>
UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string& name,
const std::string& desc,
bool req,
const std::string& typeDesc,
CmdLineInterface& parser,
bool ignoreable,
Visitor* v)
: MultiArg<T>("", name, desc, req, typeDesc, v)
{
_ignoreable = ignoreable;
OptionalUnlabeledTracker::check(true, toString());
parser.add( this );
}
template<class T>
UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string& name,
const std::string& desc,
bool req,
Constraint<T>* constraint,
bool ignoreable,
Visitor* v)
: MultiArg<T>("", name, desc, req, constraint, v)
{
_ignoreable = ignoreable;
OptionalUnlabeledTracker::check(true, toString());
}
template<class T>
UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string& name,
const std::string& desc,
bool req,
Constraint<T>* constraint,
CmdLineInterface& parser,
bool ignoreable,
Visitor* v)
: MultiArg<T>("", name, desc, req, constraint, v)
{
_ignoreable = ignoreable;
OptionalUnlabeledTracker::check(true, toString());
parser.add( this );
}
template<class T>
bool UnlabeledMultiArg<T>::processArg(int *i, std::vector<std::string>& args)
{
if ( _hasBlanks( args[*i] ) )
return false;
// never ignore an unlabeled multi arg
// always take the first value, regardless of the start string
_extractValue( args[(*i)] );
/*
// continue taking args until we hit the end or a start string
while ( (unsigned int)(*i)+1 < args.size() &&
args[(*i)+1].find_first_of( Arg::flagStartString() ) != 0 &&
args[(*i)+1].find_first_of( Arg::nameStartString() ) != 0 )
_extractValue( args[++(*i)] );
*/
_alreadySet = true;
return true;
}
template<class T>
std::string UnlabeledMultiArg<T>::shortID(const std::string& val) const
{
static_cast<void>(val); // Ignore input, don't warn
return std::string("<") + _typeDesc + "> ...";
}
template<class T>
std::string UnlabeledMultiArg<T>::longID(const std::string& val) const
{
static_cast<void>(val); // Ignore input, don't warn
return std::string("<") + _typeDesc + "> (accepted multiple times)";
}
template<class T>
bool UnlabeledMultiArg<T>::operator==(const Arg& a) const
{
if ( _name == a.getName() || _description == a.getDescription() )
return true;
else
return false;
}
template<class T>
void UnlabeledMultiArg<T>::addToList( std::list<Arg*>& argList ) const
{
argList.push_back( const_cast<Arg*>(static_cast<const Arg* const>(this)) );
}
}
#endif
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