Chris@16: //  Boost string_algo library concept.hpp header file  ---------------------------//
Chris@16: 
Chris@16: //  Copyright Pavol Droba 2002-2003.
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0.
Chris@16: //    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //          http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  See http://www.boost.org/ for updates, documentation, and revision history.
Chris@16: 
Chris@16: #ifndef BOOST_STRING_CONCEPT_HPP
Chris@16: #define BOOST_STRING_CONCEPT_HPP
Chris@16: 
Chris@16: #include <boost/concept_check.hpp>
Chris@16: #include <boost/range/iterator_range_core.hpp>
Chris@16: #include <boost/range/begin.hpp>
Chris@16: #include <boost/range/end.hpp>
Chris@16: 
Chris@16: /*! \file 
Chris@16:     Defines concepts used in string_algo library
Chris@16: */
Chris@16: 
Chris@16: namespace boost {
Chris@16:     namespace algorithm {
Chris@16: 
Chris@16:         //! Finder concept
Chris@16:         /*!
Chris@16:             Defines the Finder concept. Finder is a functor which selects
Chris@16:             an arbitrary part of a string. Search is performed on
Chris@16:             the range specified by starting and ending iterators.
Chris@16: 
Chris@16:             Result of the find operation must be convertible to iterator_range.
Chris@16:         */
Chris@16:         template<typename FinderT, typename IteratorT>
Chris@16:         struct FinderConcept
Chris@16:         {
Chris@16:         private:
Chris@16:             typedef iterator_range<IteratorT> range;
Chris@16:         public:
Chris@16:             void constraints()
Chris@16:             {
Chris@16:                 // Operation
Chris@16:                 r=(*pF)(i,i);
Chris@16:             }
Chris@16:         private:
Chris@16:             range r;
Chris@16:             IteratorT i;
Chris@16:             FinderT* pF;    
Chris@16:         }; // Finder_concept
Chris@16: 
Chris@16:         
Chris@16:         //! Formatter concept
Chris@16:         /*!
Chris@16:             Defines the Formatter concept. Formatter is a functor, which
Chris@16:             takes a result from a finder operation and transforms it
Chris@16:             in a specific way.
Chris@16: 
Chris@16:             Result must be a container supported by container_traits, 
Chris@16:             or a reference to it.
Chris@16:         */
Chris@16:         template<typename FormatterT, typename FinderT, typename IteratorT>
Chris@16:         struct FormatterConcept
Chris@16:         {
Chris@16:         public:
Chris@16:             void constraints()
Chris@16:             {
Chris@16:                 // Operation
Chris@16:                 ::boost::begin((*pFo)( (*pF)(i,i) ));
Chris@16:                 ::boost::end((*pFo)( (*pF)(i,i) ));
Chris@16:             }
Chris@16:         private:
Chris@16:             IteratorT i;
Chris@16:             FinderT* pF;
Chris@16:             FormatterT *pFo;
Chris@16:         }; // FormatterConcept;
Chris@16: 
Chris@16:     } // namespace algorithm
Chris@16: } // namespace boost
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: #endif  // BOOST_STRING_CONCEPT_HPP