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comparison DEPENDENCIES/generic/include/boost/locale/boundary/facets.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
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date | Tue, 05 Aug 2014 11:11:38 +0100 |
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15:663ca0da4350 | 16:2665513ce2d3 |
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1 // | |
2 // Copyright (c) 2009-2011 Artyom Beilis (Tonkikh) | |
3 // | |
4 // Distributed under the Boost Software License, Version 1.0. (See | |
5 // accompanying file LICENSE_1_0.txt or copy at | |
6 // http://www.boost.org/LICENSE_1_0.txt) | |
7 // | |
8 #ifndef BOOST_LOCALE_BOUNDARY_FACETS_HPP_INCLUDED | |
9 #define BOOST_LOCALE_BOUNDARY_FACETS_HPP_INCLUDED | |
10 | |
11 #include <boost/locale/config.hpp> | |
12 #include <boost/locale/boundary/types.hpp> | |
13 #ifdef BOOST_MSVC | |
14 # pragma warning(push) | |
15 # pragma warning(disable : 4275 4251 4231 4660) | |
16 #endif | |
17 #include <locale> | |
18 #include <vector> | |
19 | |
20 | |
21 | |
22 | |
23 namespace boost { | |
24 | |
25 namespace locale { | |
26 | |
27 /// | |
28 /// \brief This namespae contains all operations required for boundary analysis of text | |
29 /// | |
30 namespace boundary { | |
31 /// | |
32 /// \addtogroup boundary | |
33 /// | |
34 /// @{ | |
35 /// | |
36 | |
37 | |
38 /// | |
39 /// \brief This structure is used for representing boundary point | |
40 /// that follows the offset. | |
41 /// | |
42 struct break_info { | |
43 | |
44 /// | |
45 /// Create empty break point at beginning | |
46 /// | |
47 break_info() : | |
48 offset(0), | |
49 rule(0) | |
50 { | |
51 } | |
52 /// | |
53 /// Create empty break point at offset v. | |
54 /// it is useful for order comparison with other points. | |
55 /// | |
56 break_info(size_t v) : | |
57 offset(v), | |
58 rule(0) | |
59 { | |
60 } | |
61 | |
62 /// | |
63 /// Offset from the beggining of the text where a break occurs. | |
64 /// | |
65 size_t offset; | |
66 /// | |
67 /// The identification of this break point according to | |
68 /// various break types | |
69 /// | |
70 rule_type rule; | |
71 | |
72 /// | |
73 /// Compare two break points' offset. Allows to search with | |
74 /// standard algorithms over the index. | |
75 /// | |
76 bool operator<(break_info const &other) const | |
77 { | |
78 return offset < other.offset; | |
79 } | |
80 }; | |
81 | |
82 /// | |
83 /// This type holds the analysis of the text - all its break points | |
84 /// with marks | |
85 /// | |
86 typedef std::vector<break_info> index_type; | |
87 | |
88 | |
89 template<typename CharType> | |
90 class boundary_indexing; | |
91 | |
92 #ifdef BOOST_LOCALE_DOXYGEN | |
93 /// | |
94 /// \brief This facet generates an index for boundary analysis | |
95 /// for a given text. | |
96 /// | |
97 /// It is specialized for 4 types of characters \c char_t, \c wchar_t, \c char16_t and \c char32_t | |
98 /// | |
99 template<typename Char> | |
100 class BOOST_LOCALE_DECL boundary_indexing : public std::locale::facet { | |
101 public: | |
102 /// | |
103 /// Default constructor typical for facets | |
104 /// | |
105 boundary_indexing(size_t refs=0) : std::locale::facet(refs) | |
106 { | |
107 } | |
108 /// | |
109 /// Create index for boundary type \a t for text in range [begin,end) | |
110 /// | |
111 /// The returned value is an index of type \ref index_type. Note that this | |
112 /// index is never empty, even if the range [begin,end) is empty it consists | |
113 /// of at least one boundary point with the offset 0. | |
114 /// | |
115 virtual index_type map(boundary_type t,Char const *begin,Char const *end) const = 0; | |
116 /// | |
117 /// Identification of this facet | |
118 /// | |
119 static std::locale::id id; | |
120 | |
121 #if defined (__SUNPRO_CC) && defined (_RWSTD_VER) | |
122 std::locale::id& __get_id (void) const { return id; } | |
123 #endif | |
124 }; | |
125 | |
126 #else | |
127 | |
128 template<> | |
129 class BOOST_LOCALE_DECL boundary_indexing<char> : public std::locale::facet { | |
130 public: | |
131 boundary_indexing(size_t refs=0) : std::locale::facet(refs) | |
132 { | |
133 } | |
134 virtual index_type map(boundary_type t,char const *begin,char const *end) const = 0; | |
135 static std::locale::id id; | |
136 #if defined (__SUNPRO_CC) && defined (_RWSTD_VER) | |
137 std::locale::id& __get_id (void) const { return id; } | |
138 #endif | |
139 }; | |
140 | |
141 template<> | |
142 class BOOST_LOCALE_DECL boundary_indexing<wchar_t> : public std::locale::facet { | |
143 public: | |
144 boundary_indexing(size_t refs=0) : std::locale::facet(refs) | |
145 { | |
146 } | |
147 virtual index_type map(boundary_type t,wchar_t const *begin,wchar_t const *end) const = 0; | |
148 | |
149 static std::locale::id id; | |
150 #if defined (__SUNPRO_CC) && defined (_RWSTD_VER) | |
151 std::locale::id& __get_id (void) const { return id; } | |
152 #endif | |
153 }; | |
154 | |
155 #ifdef BOOST_HAS_CHAR16_T | |
156 template<> | |
157 class BOOST_LOCALE_DECL boundary_indexing<char16_t> : public std::locale::facet { | |
158 public: | |
159 boundary_indexing(size_t refs=0) : std::locale::facet(refs) | |
160 { | |
161 } | |
162 virtual index_type map(boundary_type t,char16_t const *begin,char16_t const *end) const = 0; | |
163 static std::locale::id id; | |
164 #if defined (__SUNPRO_CC) && defined (_RWSTD_VER) | |
165 std::locale::id& __get_id (void) const { return id; } | |
166 #endif | |
167 }; | |
168 #endif | |
169 | |
170 #ifdef BOOST_HAS_CHAR32_T | |
171 template<> | |
172 class BOOST_LOCALE_DECL boundary_indexing<char32_t> : public std::locale::facet { | |
173 public: | |
174 boundary_indexing(size_t refs=0) : std::locale::facet(refs) | |
175 { | |
176 } | |
177 virtual index_type map(boundary_type t,char32_t const *begin,char32_t const *end) const = 0; | |
178 static std::locale::id id; | |
179 #if defined (__SUNPRO_CC) && defined (_RWSTD_VER) | |
180 std::locale::id& __get_id (void) const { return id; } | |
181 #endif | |
182 }; | |
183 #endif | |
184 | |
185 #endif | |
186 | |
187 /// | |
188 /// @} | |
189 /// | |
190 | |
191 | |
192 } // boundary | |
193 | |
194 } // locale | |
195 } // boost | |
196 | |
197 | |
198 #ifdef BOOST_MSVC | |
199 #pragma warning(pop) | |
200 #endif | |
201 | |
202 #endif | |
203 // vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4 |