[857] | 1 | // Boost string_algo library find_iterator.hpp header file ---------------------------//
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| 2 |
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| 3 | // Copyright Pavol Droba 2002-2003. Use, modification and
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| 4 | // distribution is subject to the Boost Software License, Version
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| 5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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| 6 | // http://www.boost.org/LICENSE_1_0.txt)
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| 7 |
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| 8 | // See http://www.boost.org for updates, documentation, and revision history.
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| 9 |
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| 10 | #ifndef BOOST_STRING_FIND_ITERATOR_DETAIL_HPP
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| 11 | #define BOOST_STRING_FIND_ITERATOR_DETAIL_HPP
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| 12 |
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| 13 | #include <boost/algorithm/string/config.hpp>
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| 14 | #include <boost/range/iterator_range.hpp>
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| 15 | #include <boost/iterator/iterator_facade.hpp>
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| 16 | #include <boost/iterator/iterator_categories.hpp>
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| 17 | #include <boost/function.hpp>
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| 18 |
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| 19 | namespace boost {
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| 20 | namespace algorithm {
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| 21 | namespace detail {
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| 22 |
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| 23 | // find_iterator base -----------------------------------------------//
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| 24 |
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| 25 | // Find iterator base
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| 26 | template<typename IteratorT>
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| 27 | class find_iterator_base
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| 28 | {
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| 29 | protected:
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| 30 | // typedefs
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| 31 | typedef IteratorT input_iterator_type;
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| 32 | typedef iterator_range<IteratorT> match_type;
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| 33 | typedef function2<
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| 34 | match_type,
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| 35 | input_iterator_type,
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| 36 | input_iterator_type> finder_type;
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| 37 |
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| 38 | protected:
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| 39 | // Protected construction/destruction
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| 40 |
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| 41 | // Default constructor
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| 42 | find_iterator_base() {};
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| 43 | // Copy construction
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| 44 | find_iterator_base( const find_iterator_base& Other ) :
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| 45 | m_Finder(Other.m_Finder) {}
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| 46 |
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| 47 | // Constructor
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| 48 | template<typename FinderT>
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| 49 | find_iterator_base( FinderT Finder, int ) :
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| 50 | m_Finder(Finder) {}
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| 51 |
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| 52 | // Destructor
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| 53 | ~find_iterator_base() {}
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| 54 |
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| 55 | // Find operation
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| 56 | match_type do_find(
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| 57 | input_iterator_type Begin,
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| 58 | input_iterator_type End ) const
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| 59 | {
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| 60 | if (!m_Finder.empty())
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| 61 | {
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| 62 | return m_Finder(Begin,End);
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| 63 | }
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| 64 | else
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| 65 | {
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| 66 | return match_type(End,End);
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| 67 | }
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| 68 | }
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| 69 |
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| 70 | // Check
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| 71 | bool is_null() const
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| 72 | {
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| 73 | return m_Finder.empty();
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| 74 | }
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| 75 |
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| 76 | private:
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| 77 | // Finder
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| 78 | finder_type m_Finder;
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| 79 | };
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| 80 |
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| 81 | } // namespace detail
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| 82 | } // namespace algorithm
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| 83 | } // namespace boost
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| 84 |
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| 85 |
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| 86 | #endif // BOOST_STRING_FIND_ITERATOR_DETAIL_HPP
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