1 // std::ctype implementation details, GNU version -*- C++ -*-
3 // Copyright (C) 2001 Free Software Foundation, Inc.
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)
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.
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,
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.
31 // ISO C++ 14882: 22.2.1.1.2 ctype virtual functions.
34 // Written by Benjamin Kosnik <bkoz@redhat.com>
40 // NB: The other ctype<char> specializations are in src/locale.cc and
41 // various /config/os/* files.
43 ctype_byname<char>::ctype_byname(const char* __s, size_t __refs)
44 : ctype<char>(0, false, __refs)
46 if (_M_c_locale_ctype)
47 _S_destroy_c_locale(_M_c_locale_ctype);
48 _S_create_c_locale(_M_c_locale_ctype, __s);
49 _M_toupper = _M_c_locale_ctype->__ctype_toupper;
50 _M_tolower = _M_c_locale_ctype->__ctype_tolower;
51 _M_table = _M_c_locale_ctype->__ctype_b;
54 #ifdef _GLIBCPP_USE_WCHAR_T
55 ctype<wchar_t>::__wmask_type
56 ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const
62 __ret = __wctype_l("space", _M_c_locale_ctype);
65 __ret = __wctype_l("print", _M_c_locale_ctype);
68 __ret = __wctype_l("cntrl", _M_c_locale_ctype);
71 __ret = __wctype_l("upper", _M_c_locale_ctype);
74 __ret = __wctype_l("lower", _M_c_locale_ctype);
77 __ret = __wctype_l("alpha", _M_c_locale_ctype);
80 __ret = __wctype_l("digit", _M_c_locale_ctype);
83 __ret = __wctype_l("punct", _M_c_locale_ctype);
86 __ret = __wctype_l("xdigit", _M_c_locale_ctype);
89 __ret = __wctype_l("alnum", _M_c_locale_ctype);
92 __ret = __wctype_l("graph", _M_c_locale_ctype);
101 ctype<wchar_t>::do_toupper(wchar_t __c) const
102 { return __towupper_l(__c, _M_c_locale_ctype); }
105 ctype<wchar_t>::do_toupper(wchar_t* __lo, const wchar_t* __hi) const
109 *__lo = __towupper_l(*__lo, _M_c_locale_ctype);
116 ctype<wchar_t>::do_tolower(wchar_t __c) const
117 { return __towlower_l(__c, _M_c_locale_ctype); }
120 ctype<wchar_t>::do_tolower(wchar_t* __lo, const wchar_t* __hi) const
124 *__lo = __towlower_l(*__lo, _M_c_locale_ctype);
132 do_is(mask __m, char_type __c) const
133 { return static_cast<bool>(__iswctype_l(__c, _M_convert_to_wmask(__m),
134 _M_c_locale_ctype)); }
138 do_is(const wchar_t* __lo, const wchar_t* __hi, mask* __m) const
140 while (__lo < __hi && !this->do_is(*__m, *__lo))
147 do_scan_is(mask __m, const wchar_t* __lo, const wchar_t* __hi) const
149 while (__lo < __hi && !this->do_is(__m, *__lo))
156 do_scan_not(mask __m, const char_type* __lo, const char_type* __hi) const
158 while (__lo < __hi && this->do_is(__m, *__lo) != 0)
165 do_widen(char __c) const
166 { return btowc(__c); }
170 do_widen(const char* __lo, const char* __hi, wchar_t* __dest) const
173 memset(static_cast<void*>(&__state), 0, sizeof(mbstate_t));
174 mbsrtowcs(__dest, &__lo, __hi - __lo, &__state);
180 do_narrow(wchar_t __wc, char __dfault) const
182 int __c = wctob(__wc);
183 return (__c == EOF ? __dfault : static_cast<char>(__c));
188 do_narrow(const wchar_t* __lo, const wchar_t* __hi, char __dfault,
192 memset(static_cast<void*>(&__state), 0, sizeof(mbstate_t));
193 size_t __len = __hi - __lo;
194 size_t __conv = wcsrtombs(__dest, &__lo, __len, &__state);
199 #endif // _GLIBCPP_USE_WCHAR_T