]>
Commit | Line | Data |
---|---|---|
def9790d BK |
1 | // std::ctype implementation details, generic version -*- C++ -*- |
2 | ||
465ad0c7 | 3 | // Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. |
def9790d BK |
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 2, 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 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING. If not, write to the Free | |
18 | // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
19 | // USA. | |
20 | ||
21 | // As a special exception, you may use this file as part of a free software | |
22 | // library without restriction. Specifically, if other files instantiate | |
23 | // templates or use macros or inline functions from this file, or you compile | |
24 | // this file and link it with other files to produce an executable, this | |
25 | // file does not by itself cause the resulting executable to be covered by | |
26 | // the GNU General Public License. This exception does not however | |
27 | // invalidate any other reasons why the executable file might be covered by | |
28 | // the GNU General Public License. | |
29 | ||
30 | // | |
31 | // ISO C++ 14882: 22.2.1.1.2 ctype virtual functions. | |
32 | // | |
33 | ||
34 | // Written by Benjamin Kosnik <bkoz@redhat.com> | |
35 | ||
36 | #include <locale> | |
37 | ||
38 | namespace std | |
39 | { | |
40 | // NB: The other ctype<char> specializations are in src/locale.cc and | |
41 | // various /config/os/* files. | |
42 | template<> | |
43 | ctype_byname<char>::ctype_byname(const char* __s, size_t __refs) | |
44 | : ctype<char>(0, false, __refs) | |
45 | { | |
bf5fe473 BK |
46 | if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0) |
47 | { | |
48 | _S_destroy_c_locale(_M_c_locale_ctype); | |
49 | _S_create_c_locale(_M_c_locale_ctype, __s); | |
50 | } | |
def9790d BK |
51 | } |
52 | ||
3d7c150e | 53 | #ifdef _GLIBCXX_USE_WCHAR_T |
def9790d BK |
54 | ctype<wchar_t>::__wmask_type |
55 | ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const | |
56 | { | |
57 | __wmask_type __ret; | |
58 | switch (__m) | |
59 | { | |
60 | case space: | |
61 | __ret = wctype("space"); | |
62 | break; | |
63 | case print: | |
64 | __ret = wctype("print"); | |
65 | break; | |
66 | case cntrl: | |
67 | __ret = wctype("cntrl"); | |
68 | break; | |
69 | case upper: | |
70 | __ret = wctype("upper"); | |
71 | break; | |
72 | case lower: | |
73 | __ret = wctype("lower"); | |
74 | break; | |
75 | case alpha: | |
76 | __ret = wctype("alpha"); | |
77 | break; | |
78 | case digit: | |
79 | __ret = wctype("digit"); | |
80 | break; | |
81 | case punct: | |
82 | __ret = wctype("punct"); | |
83 | break; | |
84 | case xdigit: | |
85 | __ret = wctype("xdigit"); | |
86 | break; | |
87 | case alnum: | |
88 | __ret = wctype("alnum"); | |
89 | break; | |
90 | case graph: | |
91 | __ret = wctype("graph"); | |
92 | break; | |
93 | default: | |
94 | __ret = 0; | |
95 | } | |
96 | return __ret; | |
97 | }; | |
98 | ||
99 | wchar_t | |
100 | ctype<wchar_t>::do_toupper(wchar_t __c) const | |
101 | { return towupper(__c); } | |
102 | ||
103 | const wchar_t* | |
104 | ctype<wchar_t>::do_toupper(wchar_t* __lo, const wchar_t* __hi) const | |
105 | { | |
106 | while (__lo < __hi) | |
107 | { | |
108 | *__lo = towupper(*__lo); | |
109 | ++__lo; | |
110 | } | |
111 | return __hi; | |
112 | } | |
113 | ||
114 | wchar_t | |
115 | ctype<wchar_t>::do_tolower(wchar_t __c) const | |
116 | { return towlower(__c); } | |
117 | ||
118 | const wchar_t* | |
119 | ctype<wchar_t>::do_tolower(wchar_t* __lo, const wchar_t* __hi) const | |
120 | { | |
121 | while (__lo < __hi) | |
122 | { | |
123 | *__lo = towlower(*__lo); | |
124 | ++__lo; | |
125 | } | |
126 | return __hi; | |
127 | } | |
128 | ||
129 | bool | |
130 | ctype<wchar_t>:: | |
131 | do_is(mask __m, char_type __c) const | |
465ad0c7 | 132 | { |
ba9b12d1 | 133 | bool __ret = false; |
2f800bcc PC |
134 | // Generically, 15 (instead of 10) since we don't know the numerical |
135 | // encoding of the various categories in /usr/include/ctype.h. | |
136 | const size_t __bitmasksize = 15; | |
465ad0c7 BK |
137 | for (size_t __bitcur = 0; __bitcur <= __bitmasksize; ++__bitcur) |
138 | { | |
ba9b12d1 | 139 | const mask __bit = static_cast<mask>(1 << __bitcur); |
465ad0c7 | 140 | if (__m & __bit) |
ba9b12d1 | 141 | __ret |= iswctype(__c, _M_convert_to_wmask(__bit)); |
465ad0c7 | 142 | } |
ba9b12d1 | 143 | return __ret; |
465ad0c7 | 144 | } |
def9790d BK |
145 | |
146 | const wchar_t* | |
147 | ctype<wchar_t>:: | |
465ad0c7 | 148 | do_is(const wchar_t* __lo, const wchar_t* __hi, mask* __vec) const |
def9790d | 149 | { |
465ad0c7 BK |
150 | for (;__lo < __hi; ++__vec, ++__lo) |
151 | { | |
2f800bcc PC |
152 | // Generically, 15 (instead of 10) since we don't know the numerical |
153 | // encoding of the various categories in /usr/include/ctype.h. | |
154 | const size_t __bitmasksize = 15; | |
465ad0c7 BK |
155 | mask __m = 0; |
156 | for (size_t __bitcur = 0; __bitcur <= __bitmasksize; ++__bitcur) | |
157 | { | |
ba9b12d1 | 158 | const mask __bit = static_cast<mask>(1 << __bitcur); |
465ad0c7 BK |
159 | if (iswctype(*__lo, _M_convert_to_wmask(__bit))) |
160 | __m |= __bit; | |
161 | } | |
162 | *__vec = __m; | |
163 | } | |
164 | return __hi; | |
def9790d BK |
165 | } |
166 | ||
167 | const wchar_t* | |
168 | ctype<wchar_t>:: | |
169 | do_scan_is(mask __m, const wchar_t* __lo, const wchar_t* __hi) const | |
170 | { | |
171 | while (__lo < __hi && !this->do_is(__m, *__lo)) | |
172 | ++__lo; | |
173 | return __lo; | |
174 | } | |
175 | ||
176 | const wchar_t* | |
177 | ctype<wchar_t>:: | |
178 | do_scan_not(mask __m, const char_type* __lo, const char_type* __hi) const | |
179 | { | |
180 | while (__lo < __hi && this->do_is(__m, *__lo) != 0) | |
181 | ++__lo; | |
182 | return __lo; | |
183 | } | |
184 | ||
185 | wchar_t | |
186 | ctype<wchar_t>:: | |
187 | do_widen(char __c) const | |
ca13fb7f | 188 | { return _M_widen[static_cast<unsigned char>(__c)]; } |
def9790d BK |
189 | |
190 | const char* | |
191 | ctype<wchar_t>:: | |
192 | do_widen(const char* __lo, const char* __hi, wchar_t* __dest) const | |
193 | { | |
ac1613a2 BK |
194 | while (__lo < __hi) |
195 | { | |
ca13fb7f | 196 | *__dest = _M_widen[static_cast<unsigned char>(*__lo)]; |
ac1613a2 BK |
197 | ++__lo; |
198 | ++__dest; | |
199 | } | |
def9790d BK |
200 | return __hi; |
201 | } | |
202 | ||
203 | char | |
204 | ctype<wchar_t>:: | |
205 | do_narrow(wchar_t __wc, char __dfault) const | |
206 | { | |
e3c0c098 PC |
207 | if (__wc >= 0 && __wc < 128 && _M_narrow_ok) |
208 | return _M_narrow[__wc]; | |
209 | const int __c = wctob(__wc); | |
def9790d BK |
210 | return (__c == EOF ? __dfault : static_cast<char>(__c)); |
211 | } | |
212 | ||
213 | const wchar_t* | |
214 | ctype<wchar_t>:: | |
215 | do_narrow(const wchar_t* __lo, const wchar_t* __hi, char __dfault, | |
216 | char* __dest) const | |
217 | { | |
e3c0c098 PC |
218 | if (_M_narrow_ok) |
219 | while (__lo < __hi) | |
220 | { | |
221 | if (*__lo >= 0 && *__lo < 128) | |
222 | *__dest = _M_narrow[*__lo]; | |
223 | else | |
224 | { | |
225 | const int __c = wctob(*__lo); | |
226 | *__dest = (__c == EOF ? __dfault : static_cast<char>(__c)); | |
227 | } | |
228 | ++__lo; | |
229 | ++__dest; | |
230 | } | |
231 | else | |
232 | while (__lo < __hi) | |
233 | { | |
234 | const int __c = wctob(*__lo); | |
235 | *__dest = (__c == EOF ? __dfault : static_cast<char>(__c)); | |
236 | ++__lo; | |
237 | ++__dest; | |
238 | } | |
239 | return __hi; | |
240 | } | |
241 | ||
242 | void | |
243 | ctype<wchar_t>::_M_initialize_ctype() | |
244 | { | |
245 | wint_t __i; | |
246 | for (__i = 0; __i < 128; ++__i) | |
f64ce6c6 | 247 | { |
e3c0c098 PC |
248 | const int __c = wctob(__i); |
249 | if (__c == EOF) | |
250 | break; | |
251 | else | |
252 | _M_narrow[__i] = static_cast<char>(__c); | |
f64ce6c6 | 253 | } |
e3c0c098 PC |
254 | if (__i == 128) |
255 | _M_narrow_ok = true; | |
256 | else | |
257 | _M_narrow_ok = false; | |
ca13fb7f PC |
258 | for (size_t __i = 0; |
259 | __i < sizeof(_M_widen) / sizeof(wint_t); ++__i) | |
e3c0c098 | 260 | _M_widen[__i] = btowc(__i); |
def9790d | 261 | } |
3d7c150e | 262 | #endif // _GLIBCXX_USE_WCHAR_T |
def9790d | 263 | } |