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