UnlabeledMultiArg.h

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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_UNLABELED_MULTI_ARG_H
#define TCLAP_UNLABELED_MULTI_ARG_H
 
#include <tclap/MultiArg.h>
#include <tclap/OptionalUnlabeledTracker.h>
 
#include <list>
#include <string>
#include <vector>
 
namespace TCLAP {
 
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>::_setBy;
    using MultiArg<T>::toString;
 
public:
    UnlabeledMultiArg(const std::string &name, const std::string &desc,
                      bool req, const std::string &typeDesc,
                      bool ignoreable = false, Visitor *v = NULL);
    UnlabeledMultiArg(const std::string &name, const std::string &desc,
                      bool req, const std::string &typeDesc,
                      ArgContainer &parser, bool ignoreable = false,
                      Visitor *v = NULL);
 
    UnlabeledMultiArg(const std::string &name, const std::string &desc,
                      bool req, const Constraint<T> *constraint,
                      bool ignoreable = false, Visitor *v = NULL);
 
    UnlabeledMultiArg(const std::string &name, const std::string &desc,
                      bool req, const Constraint<T> *constraint,
                      ArgContainer &parser, bool ignoreable = false,
                      Visitor *v = NULL);
 
    virtual bool processArg(int *i, std::vector<std::string> &args);
 
    virtual std::string shortID(const std::string &) const {
        return Arg::getName() + " ...";
    }
 
    virtual std::string longID(const std::string &) const {
        return Arg::getName() + " (accepted multiple times) <" + _typeDesc +
               ">";
    }
 
    virtual bool operator==(const Arg &a) const;
 
    virtual void addToList(std::list<Arg *> &argList) const;
 
    virtual bool hasLabel() const { return false; }
};
 
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;
}
 
template <class T>
UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string &name,
                                        const std::string &desc, bool req,
                                        const std::string &typeDesc,
                                        ArgContainer &parser, bool ignoreable,
                                        Visitor *v)
    : MultiArg<T>("", name, desc, req, typeDesc, v) {
    _ignoreable = ignoreable;
    parser.add(this);
}
 
template <class T>
UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string &name,
                                        const std::string &desc, bool req,
                                        const Constraint<T> *constraint,
                                        bool ignoreable, Visitor *v)
    : MultiArg<T>("", name, desc, req, constraint, v) {
    _ignoreable = ignoreable;
}
 
template <class T>
UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string &name,
                                        const std::string &desc, bool req,
                                        const Constraint<T> *constraint,
                                        ArgContainer &parser, bool ignoreable,
                                        Visitor *v)
    : MultiArg<T>("", name, desc, req, constraint, v) {
    _ignoreable = ignoreable;
    parser.add(this);
}
 
template <class T>
bool UnlabeledMultiArg<T>::processArg(int *i, std::vector<std::string> &args) {
    if (_hasBlanks(args[*i])) return false;
 
    // always take the first value, regardless of the start string
    _extractValue(args[(*i)]);
 
    _alreadySet = true;
    _setBy = args[*i];
    this->_checkWithVisitor();
    return true;
}
 
template <class T>
bool UnlabeledMultiArg<T>::operator==(const Arg &a) const {
    return _name == a.getName() ||
           this->getDescription() == a.getDescription();
}
 
template <class T>
void UnlabeledMultiArg<T>::addToList(std::list<Arg *> &argList) const {
    argList.push_back(const_cast<Arg *>(static_cast<const Arg *const>(this)));
}
}  // namespace TCLAP
 
#endif  // TCLAP_UNLABELED_MULTI_ARG_H