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1 | // Boost string_algo library find_iterator.hpp header file ---------------------------// |
2 | ||
3 | // Copyright Pavol Droba 2002-2003. | |
4 | // | |
5 | // Distributed under the Boost Software License, Version 1.0. | |
6 | // (See accompanying file LICENSE_1_0.txt or copy at | |
7 | // http://www.boost.org/LICENSE_1_0.txt) | |
8 | ||
9 | // See http://www.boost.org/ for updates, documentation, and revision history. | |
10 | ||
11 | #ifndef BOOST_STRING_FIND_ITERATOR_DETAIL_HPP | |
12 | #define BOOST_STRING_FIND_ITERATOR_DETAIL_HPP | |
13 | ||
14 | #include <boost/algorithm/string/config.hpp> | |
15 | #include <boost/range/iterator_range_core.hpp> | |
16 | #include <boost/iterator/iterator_facade.hpp> | |
17 | #include <boost/iterator/iterator_categories.hpp> | |
18 | #include <boost/function.hpp> | |
19 | ||
20 | namespace boost { | |
21 | namespace algorithm { | |
22 | namespace detail { | |
23 | ||
24 | // find_iterator base -----------------------------------------------// | |
25 | ||
26 | // Find iterator base | |
27 | template<typename IteratorT> | |
28 | class find_iterator_base | |
29 | { | |
30 | protected: | |
31 | // typedefs | |
32 | typedef IteratorT input_iterator_type; | |
33 | typedef iterator_range<IteratorT> match_type; | |
34 | typedef function2< | |
35 | match_type, | |
36 | input_iterator_type, | |
37 | input_iterator_type> finder_type; | |
38 | ||
39 | protected: | |
40 | // Protected construction/destruction | |
41 | ||
42 | // Default constructor | |
b32b8144 | 43 | find_iterator_base() {} |
7c673cae FG |
44 | // Copy construction |
45 | find_iterator_base( const find_iterator_base& Other ) : | |
46 | m_Finder(Other.m_Finder) {} | |
47 | ||
48 | // Constructor | |
49 | template<typename FinderT> | |
50 | find_iterator_base( FinderT Finder, int ) : | |
51 | m_Finder(Finder) {} | |
52 | ||
53 | // Destructor | |
54 | ~find_iterator_base() {} | |
55 | ||
56 | // Find operation | |
57 | match_type do_find( | |
58 | input_iterator_type Begin, | |
59 | input_iterator_type End ) const | |
60 | { | |
61 | if (!m_Finder.empty()) | |
62 | { | |
63 | return m_Finder(Begin,End); | |
64 | } | |
65 | else | |
66 | { | |
67 | return match_type(End,End); | |
68 | } | |
69 | } | |
70 | ||
71 | // Check | |
72 | bool is_null() const | |
73 | { | |
74 | return m_Finder.empty(); | |
75 | } | |
76 | ||
77 | private: | |
78 | // Finder | |
79 | finder_type m_Finder; | |
80 | }; | |
81 | ||
82 | } // namespace detail | |
83 | } // namespace algorithm | |
84 | } // namespace boost | |
85 | ||
86 | ||
87 | #endif // BOOST_STRING_FIND_ITERATOR_DETAIL_HPP |