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Added TClap command line parsing library
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Matt Hill
301
src/tclap/UnlabeledMultiArg.h
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301
src/tclap/UnlabeledMultiArg.h
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/******************************************************************************
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*
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* file: UnlabeledMultiArg.h
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*
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* Copyright (c) 2003, Michael E. Smoot.
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* All rights reverved.
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*
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* See the file COPYING in the top directory of this distribution for
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* more information.
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*
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* THE SOFTWARE IS PROVIDED _AS IS_, WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*****************************************************************************/
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#ifndef TCLAP_MULTIPLE_UNLABELED_ARGUMENT_H
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#define TCLAP_MULTIPLE_UNLABELED_ARGUMENT_H
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#include <string>
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#include <vector>
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#include "MultiArg.h"
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#include "OptionalUnlabeledTracker.h"
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namespace TCLAP {
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/**
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* Just like a MultiArg, except that the arguments are unlabeled. Basically,
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* this Arg will slurp up everything that hasn't been matched to another
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* Arg.
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*/
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template<class T>
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class UnlabeledMultiArg : public MultiArg<T>
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{
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// If compiler has two stage name lookup (as gcc >= 3.4 does)
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// this is requried to prevent undef. symbols
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using MultiArg<T>::_ignoreable;
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using MultiArg<T>::_hasBlanks;
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using MultiArg<T>::_extractValue;
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using MultiArg<T>::_typeDesc;
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using MultiArg<T>::_name;
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using MultiArg<T>::_description;
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using MultiArg<T>::_alreadySet;
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using MultiArg<T>::toString;
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public:
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/**
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* Constructor.
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* \param name - The name of the Arg. Note that this is used for
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* identification, not as a long flag.
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* \param desc - A description of what the argument is for or
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* does.
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* \param req - Whether the argument is required on the command
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* line.
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* \param typeDesc - A short, human readable description of the
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* type that this object expects. This is used in the generation
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* of the USAGE statement. The goal is to be helpful to the end user
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* of the program.
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* \param ignoreable - Whether or not this argument can be ignored
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* using the "--" flag.
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* \param v - An optional visitor. You probably should not
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* use this unless you have a very good reason.
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*/
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UnlabeledMultiArg( const std::string& name,
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const std::string& desc,
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bool req,
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const std::string& typeDesc,
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bool ignoreable = false,
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Visitor* v = NULL );
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/**
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* Constructor.
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* \param name - The name of the Arg. Note that this is used for
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* identification, not as a long flag.
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* \param desc - A description of what the argument is for or
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* does.
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* \param req - Whether the argument is required on the command
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* line.
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* \param typeDesc - A short, human readable description of the
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* type that this object expects. This is used in the generation
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* of the USAGE statement. The goal is to be helpful to the end user
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* of the program.
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* \param parser - A CmdLine parser object to add this Arg to
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* \param ignoreable - Whether or not this argument can be ignored
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* using the "--" flag.
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* \param v - An optional visitor. You probably should not
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* use this unless you have a very good reason.
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*/
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UnlabeledMultiArg( const std::string& name,
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const std::string& desc,
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bool req,
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const std::string& typeDesc,
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CmdLineInterface& parser,
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bool ignoreable = false,
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Visitor* v = NULL );
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/**
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* Constructor.
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* \param name - The name of the Arg. Note that this is used for
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* identification, not as a long flag.
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* \param desc - A description of what the argument is for or
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* does.
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* \param req - Whether the argument is required on the command
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* line.
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* \param constraint - A pointer to a Constraint object used
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* to constrain this Arg.
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* \param ignoreable - Whether or not this argument can be ignored
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* using the "--" flag.
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* \param v - An optional visitor. You probably should not
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* use this unless you have a very good reason.
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*/
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UnlabeledMultiArg( const std::string& name,
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const std::string& desc,
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bool req,
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Constraint<T>* constraint,
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bool ignoreable = false,
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Visitor* v = NULL );
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/**
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* Constructor.
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* \param name - The name of the Arg. Note that this is used for
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* identification, not as a long flag.
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* \param desc - A description of what the argument is for or
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* does.
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* \param req - Whether the argument is required on the command
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* line.
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* \param constraint - A pointer to a Constraint object used
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* to constrain this Arg.
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* \param parser - A CmdLine parser object to add this Arg to
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* \param ignoreable - Whether or not this argument can be ignored
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* using the "--" flag.
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* \param v - An optional visitor. You probably should not
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* use this unless you have a very good reason.
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*/
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UnlabeledMultiArg( const std::string& name,
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const std::string& desc,
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bool req,
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Constraint<T>* constraint,
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CmdLineInterface& parser,
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bool ignoreable = false,
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Visitor* v = NULL );
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/**
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* Handles the processing of the argument.
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* This re-implements the Arg version of this method to set the
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* _value of the argument appropriately. It knows the difference
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* between labeled and unlabeled.
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* \param i - Pointer the the current argument in the list.
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* \param args - Mutable list of strings. Passed from main().
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*/
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virtual bool processArg(int* i, std::vector<std::string>& args);
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/**
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* Returns the a short id string. Used in the usage.
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* \param val - value to be used.
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*/
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virtual std::string shortID(const std::string& val="val") const;
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/**
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* Returns the a long id string. Used in the usage.
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* \param val - value to be used.
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*/
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virtual std::string longID(const std::string& val="val") const;
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/**
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* Opertor ==.
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* \param a - The Arg to be compared to this.
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*/
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virtual bool operator==(const Arg& a) const;
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/**
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* Pushes this to back of list rather than front.
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* \param argList - The list this should be added to.
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*/
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virtual void addToList( std::list<Arg*>& argList ) const;
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};
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template<class T>
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UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string& name,
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const std::string& desc,
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bool req,
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const std::string& typeDesc,
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bool ignoreable,
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Visitor* v)
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: MultiArg<T>("", name, desc, req, typeDesc, v)
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{
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_ignoreable = ignoreable;
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OptionalUnlabeledTracker::check(true, toString());
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}
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template<class T>
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UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string& name,
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const std::string& desc,
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bool req,
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const std::string& typeDesc,
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CmdLineInterface& parser,
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bool ignoreable,
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Visitor* v)
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: MultiArg<T>("", name, desc, req, typeDesc, v)
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{
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_ignoreable = ignoreable;
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OptionalUnlabeledTracker::check(true, toString());
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parser.add( this );
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}
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template<class T>
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UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string& name,
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const std::string& desc,
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bool req,
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Constraint<T>* constraint,
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bool ignoreable,
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Visitor* v)
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: MultiArg<T>("", name, desc, req, constraint, v)
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{
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_ignoreable = ignoreable;
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OptionalUnlabeledTracker::check(true, toString());
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}
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template<class T>
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UnlabeledMultiArg<T>::UnlabeledMultiArg(const std::string& name,
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const std::string& desc,
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bool req,
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Constraint<T>* constraint,
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CmdLineInterface& parser,
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bool ignoreable,
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Visitor* v)
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: MultiArg<T>("", name, desc, req, constraint, v)
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{
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_ignoreable = ignoreable;
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OptionalUnlabeledTracker::check(true, toString());
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parser.add( this );
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}
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template<class T>
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bool UnlabeledMultiArg<T>::processArg(int *i, std::vector<std::string>& args)
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{
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if ( _hasBlanks( args[*i] ) )
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return false;
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// never ignore an unlabeled multi arg
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// always take the first value, regardless of the start string
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_extractValue( args[(*i)] );
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/*
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// continue taking args until we hit the end or a start string
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while ( (unsigned int)(*i)+1 < args.size() &&
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args[(*i)+1].find_first_of( Arg::flagStartString() ) != 0 &&
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args[(*i)+1].find_first_of( Arg::nameStartString() ) != 0 )
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_extractValue( args[++(*i)] );
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*/
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_alreadySet = true;
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return true;
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}
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template<class T>
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std::string UnlabeledMultiArg<T>::shortID(const std::string& val) const
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{
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static_cast<void>(val); // Ignore input, don't warn
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return std::string("<") + _typeDesc + "> ...";
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}
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template<class T>
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std::string UnlabeledMultiArg<T>::longID(const std::string& val) const
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{
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static_cast<void>(val); // Ignore input, don't warn
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return std::string("<") + _typeDesc + "> (accepted multiple times)";
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}
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template<class T>
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bool UnlabeledMultiArg<T>::operator==(const Arg& a) const
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{
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if ( _name == a.getName() || _description == a.getDescription() )
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return true;
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else
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return false;
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}
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template<class T>
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void UnlabeledMultiArg<T>::addToList( std::list<Arg*>& argList ) const
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{
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argList.push_back( const_cast<Arg*>(static_cast<const Arg* const>(this)) );
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}
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}
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#endif
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