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- // -*- Mode: c++; c-basic-offset: 4; tab-width: 4; -*-
- /******************************************************************************
- *
- * file: ValuesConstraint.h
- *
- * Copyright (c) 2005, 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_VALUESCONSTRAINT_H
- #define TCLAP_VALUESCONSTRAINT_H
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
- #include <string>
- #include <vector>
- #include <tclap/Constraint.h>
- #include <tclap/sstream.h>
- namespace TCLAP {
- /**
- * A Constraint that constrains the Arg to only those values specified
- * in the constraint.
- */
- template<class T>
- class ValuesConstraint : public Constraint<T>
- {
- public:
- /**
- * Constructor.
- * \param allowed - vector of allowed values.
- */
- ValuesConstraint(std::vector<T>const& allowed);
- /**
- * Virtual destructor.
- */
- virtual ~ValuesConstraint() {}
- /**
- * Returns a description of the Constraint.
- */
- virtual std::string description() const;
- /**
- * Returns the short ID for the Constraint.
- */
- virtual std::string shortID() const;
- /**
- * The method used to verify that the value parsed from the command
- * line meets the constraint.
- * \param value - The value that will be checked.
- */
- virtual bool check(const T& value) const;
-
- protected:
- /**
- * The list of valid values.
- */
- std::vector<T> _allowed;
- /**
- * The string used to describe the allowed values of this constraint.
- */
- std::string _typeDesc;
- };
- template<class T>
- ValuesConstraint<T>::ValuesConstraint(std::vector<T> const& allowed)
- : _allowed(allowed),
- _typeDesc("")
- {
- for ( unsigned int i = 0; i < _allowed.size(); i++ )
- {
- std::ostringstream os;
- os << _allowed[i];
- std::string temp( os.str() );
- if ( i > 0 )
- _typeDesc += "|";
- _typeDesc += temp;
- }
- }
- template<class T>
- bool ValuesConstraint<T>::check( const T& val ) const
- {
- if ( std::find(_allowed.begin(),_allowed.end(),val) == _allowed.end() )
- return false;
- else
- return true;
- }
- template<class T>
- std::string ValuesConstraint<T>::shortID() const
- {
- return _typeDesc;
- }
- template<class T>
- std::string ValuesConstraint<T>::description() const
- {
- return _typeDesc;
- }
- } //namespace TCLAP
- #endif
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