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1 | // <codecvt> -*- C++ -*- |
2 | ||
3 | // Copyright (C) 2015 Free Software Foundation, Inc. | |
4 | // | |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // Under Section 7 of GPL version 3, you are granted additional | |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License and | |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
24 | ||
25 | // ISO C++ 14882: 22.5 Standard code conversion facets | |
26 | ||
27 | /** @file include/codecvt | |
28 | * This is a Standard C++ Library header. | |
29 | */ | |
30 | ||
31 | #ifndef _GLIBCXX_CODECVT | |
32 | #define _GLIBCXX_CODECVT 1 | |
33 | ||
34 | #pragma GCC system_header | |
35 | ||
36 | #if __cplusplus < 201103L | |
37 | # include <bits/c++0x_warning.h> | |
38 | #else | |
39 | ||
40 | #include <bits/locale_classes.h> | |
41 | #include <bits/codecvt.h> | |
42 | ||
43 | #ifdef _GLIBCXX_USE_C99_STDINT_TR1 | |
44 | ||
45 | namespace std _GLIBCXX_VISIBILITY(default) | |
46 | { | |
47 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
48 | ||
49 | enum codecvt_mode | |
50 | { | |
51 | consume_header = 4, | |
52 | generate_header = 2, | |
53 | little_endian = 1 | |
54 | }; | |
55 | ||
56 | template<typename _Elem, unsigned long _Maxcode = 0x10ffff, | |
57 | codecvt_mode _Mode = (codecvt_mode)0> | |
58 | class codecvt_utf8 : public codecvt<_Elem, char, mbstate_t> | |
59 | { | |
60 | public: | |
61 | explicit | |
62 | codecvt_utf8(size_t __refs = 0); | |
63 | ||
64 | ~codecvt_utf8(); | |
65 | }; | |
66 | ||
67 | template<typename _Elem, unsigned long _Maxcode = 0x10ffff, | |
68 | codecvt_mode _Mode = (codecvt_mode)0> | |
69 | class codecvt_utf16 : public codecvt<_Elem, char, mbstate_t> | |
70 | { | |
71 | public: | |
72 | explicit | |
73 | codecvt_utf16(size_t __refs = 0); | |
74 | ||
75 | ~codecvt_utf16(); | |
76 | }; | |
77 | ||
78 | template<typename _Elem, unsigned long _Maxcode = 0x10ffff, | |
79 | codecvt_mode _Mode = (codecvt_mode)0> | |
80 | class codecvt_utf8_utf16 : public codecvt<_Elem, char, mbstate_t> | |
81 | { | |
82 | public: | |
83 | explicit | |
84 | codecvt_utf8_utf16(size_t __refs = 0); | |
85 | ||
86 | ~codecvt_utf8_utf16(); | |
87 | }; | |
88 | ||
89 | #define _GLIBCXX_CODECVT_SPECIALIZATION2(_NAME, _ELEM) \ | |
90 | template<> \ | |
91 | class _NAME<_ELEM> \ | |
92 | : public codecvt<_ELEM, char, mbstate_t> \ | |
93 | { \ | |
94 | public: \ | |
95 | typedef _ELEM intern_type; \ | |
96 | typedef char extern_type; \ | |
97 | typedef mbstate_t state_type; \ | |
98 | \ | |
99 | protected: \ | |
100 | _NAME(unsigned long __maxcode, codecvt_mode __mode, size_t __refs) \ | |
101 | : codecvt(__refs), _M_maxcode(__maxcode), _M_mode(__mode) { } \ | |
102 | \ | |
103 | virtual \ | |
104 | ~_NAME(); \ | |
105 | \ | |
106 | virtual result \ | |
107 | do_out(state_type& __state, const intern_type* __from, \ | |
108 | const intern_type* __from_end, const intern_type*& __from_next, \ | |
109 | extern_type* __to, extern_type* __to_end, \ | |
110 | extern_type*& __to_next) const; \ | |
111 | \ | |
112 | virtual result \ | |
113 | do_unshift(state_type& __state, \ | |
114 | extern_type* __to, extern_type* __to_end, \ | |
115 | extern_type*& __to_next) const; \ | |
116 | \ | |
117 | virtual result \ | |
118 | do_in(state_type& __state, \ | |
119 | const extern_type* __from, const extern_type* __from_end, \ | |
120 | const extern_type*& __from_next, \ | |
121 | intern_type* __to, intern_type* __to_end, \ | |
122 | intern_type*& __to_next) const; \ | |
123 | \ | |
124 | virtual \ | |
125 | int do_encoding() const throw(); \ | |
126 | \ | |
127 | virtual \ | |
128 | bool do_always_noconv() const throw(); \ | |
129 | \ | |
130 | virtual \ | |
131 | int do_length(state_type&, const extern_type* __from, \ | |
132 | const extern_type* __end, size_t __max) const; \ | |
133 | \ | |
134 | virtual int \ | |
135 | do_max_length() const throw(); \ | |
136 | \ | |
137 | private: \ | |
138 | unsigned long _M_maxcode; \ | |
139 | codecvt_mode _M_mode; \ | |
140 | } | |
141 | ||
142 | #define _GLIBCXX_CODECVT_SPECIALIZATION(_NAME, _ELEM) \ | |
143 | _GLIBCXX_CODECVT_SPECIALIZATION2(__ ## _NAME ## _base, _ELEM); \ | |
144 | template<unsigned long _Maxcode, codecvt_mode _Mode> \ | |
145 | class _NAME<_ELEM, _Maxcode, _Mode> \ | |
146 | : public __ ## _NAME ## _base<_ELEM> \ | |
147 | { \ | |
148 | public: \ | |
149 | explicit \ | |
150 | _NAME(size_t __refs = 0) \ | |
151 | : __ ## _NAME ## _base<_ELEM>(_Maxcode, _Mode, __refs) { } \ | |
152 | } | |
153 | ||
154 | template<typename _Elem> class __codecvt_utf8_base; | |
155 | template<typename _Elem> class __codecvt_utf16_base; | |
156 | template<typename _Elem> class __codecvt_utf8_utf16_base; | |
157 | ||
158 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8, char16_t); | |
159 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf16, char16_t); | |
160 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8_utf16, char16_t); | |
161 | ||
162 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8, char32_t); | |
163 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf16, char32_t); | |
164 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8_utf16, char32_t); | |
165 | ||
166 | #ifdef _GLIBCXX_USE_WCHAR_T | |
167 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8, wchar_t); | |
168 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf16, wchar_t); | |
169 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8_utf16, wchar_t); | |
170 | #endif | |
171 | ||
172 | _GLIBCXX_END_NAMESPACE_VERSION | |
173 | } // namespace | |
174 | ||
175 | #endif // _GLIBCXX_USE_C99_STDINT_TR1 | |
176 | ||
177 | #endif | |
178 | ||
179 | #endif /* _GLIBCXX_CODECVT */ |