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-
-
- /******************************************************************************
- *
- * file: ValuesConstraint.h
- *
- * Copyright (c) 2005, Michael E. Smoot
- * All rights reverved.
- *
- * 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
-
- #include <string>
- #include <vector>
- #include "Constraint.h"
-
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #else
- #define HAVE_SSTREAM
- #endif
-
- #if defined(HAVE_SSTREAM)
- #include <sstream>
- #elif defined(HAVE_STRSTREAM)
- #include <strstream>
- #else
- #error "Need a stringstream (sstream or strstream) to compile!"
- #endif
-
- 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>& 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>& allowed)
- : _allowed(allowed),
- _typeDesc("")
- {
- for ( unsigned int i = 0; i < _allowed.size(); i++ )
- {
-
- #if defined(HAVE_SSTREAM)
- std::ostringstream os;
- #elif defined(HAVE_STRSTREAM)
- std::ostrstream os;
- #else
- #error "Need a stringstream (sstream or strstream) to compile!"
- #endif
-
- 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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