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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [config/] [locale/] [gnu/] [ctype_members.cc] - Rev 424
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// std::ctype implementation details, GNU version -*- C++ -*- // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 // Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. // // ISO C++ 14882: 22.2.1.1.2 ctype virtual functions. // // Written by Benjamin Kosnik <bkoz@redhat.com> #include <locale> #include <cstdio> #include <bits/c++locale_internal.h> _GLIBCXX_BEGIN_NAMESPACE(std) // NB: The other ctype<char> specializations are in src/locale.cc and // various /config/os/* files. ctype_byname<char>::ctype_byname(const char* __s, size_t __refs) : ctype<char>(0, false, __refs) { if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0) { this->_S_destroy_c_locale(this->_M_c_locale_ctype); this->_S_create_c_locale(this->_M_c_locale_ctype, __s); this->_M_toupper = this->_M_c_locale_ctype->__ctype_toupper; this->_M_tolower = this->_M_c_locale_ctype->__ctype_tolower; this->_M_table = this->_M_c_locale_ctype->__ctype_b; } } ctype_byname<char>::~ctype_byname() { } #ifdef _GLIBCXX_USE_WCHAR_T ctype<wchar_t>::__wmask_type ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const throw() { __wmask_type __ret; switch (__m) { case space: __ret = __wctype_l("space", _M_c_locale_ctype); break; case print: __ret = __wctype_l("print", _M_c_locale_ctype); break; case cntrl: __ret = __wctype_l("cntrl", _M_c_locale_ctype); break; case upper: __ret = __wctype_l("upper", _M_c_locale_ctype); break; case lower: __ret = __wctype_l("lower", _M_c_locale_ctype); break; case alpha: __ret = __wctype_l("alpha", _M_c_locale_ctype); break; case digit: __ret = __wctype_l("digit", _M_c_locale_ctype); break; case punct: __ret = __wctype_l("punct", _M_c_locale_ctype); break; case xdigit: __ret = __wctype_l("xdigit", _M_c_locale_ctype); break; case alnum: __ret = __wctype_l("alnum", _M_c_locale_ctype); break; case graph: __ret = __wctype_l("graph", _M_c_locale_ctype); break; default: __ret = __wmask_type(); } return __ret; } wchar_t ctype<wchar_t>::do_toupper(wchar_t __c) const { return __towupper_l(__c, _M_c_locale_ctype); } const wchar_t* ctype<wchar_t>::do_toupper(wchar_t* __lo, const wchar_t* __hi) const { while (__lo < __hi) { *__lo = __towupper_l(*__lo, _M_c_locale_ctype); ++__lo; } return __hi; } wchar_t ctype<wchar_t>::do_tolower(wchar_t __c) const { return __towlower_l(__c, _M_c_locale_ctype); } const wchar_t* ctype<wchar_t>::do_tolower(wchar_t* __lo, const wchar_t* __hi) const { while (__lo < __hi) { *__lo = __towlower_l(*__lo, _M_c_locale_ctype); ++__lo; } return __hi; } bool ctype<wchar_t>:: do_is(mask __m, wchar_t __c) const { // The case of __m == ctype_base::space is particularly important, // due to its use in many istream functions. Therefore we deal with // it first, exploiting the knowledge that on GNU systems _M_bit[5] // is the mask corresponding to ctype_base::space. NB: an encoding // change would not affect correctness! bool __ret = false; if (__m == _M_bit[5]) __ret = __iswctype_l(__c, _M_wmask[5], _M_c_locale_ctype); else { // Highest bitmask in ctype_base == 10, but extra in "C" // library for blank. const size_t __bitmasksize = 11; for (size_t __bitcur = 0; __bitcur <= __bitmasksize; ++__bitcur) if (__m & _M_bit[__bitcur]) { if (__iswctype_l(__c, _M_wmask[__bitcur], _M_c_locale_ctype)) { __ret = true; break; } else if (__m == _M_bit[__bitcur]) break; } } return __ret; } const wchar_t* ctype<wchar_t>:: do_is(const wchar_t* __lo, const wchar_t* __hi, mask* __vec) const { for (; __lo < __hi; ++__vec, ++__lo) { // Highest bitmask in ctype_base == 10, but extra in "C" // library for blank. const size_t __bitmasksize = 11; mask __m = 0; for (size_t __bitcur = 0; __bitcur <= __bitmasksize; ++__bitcur) if (__iswctype_l(*__lo, _M_wmask[__bitcur], _M_c_locale_ctype)) __m |= _M_bit[__bitcur]; *__vec = __m; } return __hi; } const wchar_t* ctype<wchar_t>:: do_scan_is(mask __m, const wchar_t* __lo, const wchar_t* __hi) const { while (__lo < __hi && !this->do_is(__m, *__lo)) ++__lo; return __lo; } const wchar_t* ctype<wchar_t>:: do_scan_not(mask __m, const char_type* __lo, const char_type* __hi) const { while (__lo < __hi && this->do_is(__m, *__lo) != 0) ++__lo; return __lo; } wchar_t ctype<wchar_t>:: do_widen(char __c) const { return _M_widen[static_cast<unsigned char>(__c)]; } const char* ctype<wchar_t>:: do_widen(const char* __lo, const char* __hi, wchar_t* __dest) const { while (__lo < __hi) { *__dest = _M_widen[static_cast<unsigned char>(*__lo)]; ++__lo; ++__dest; } return __hi; } char ctype<wchar_t>:: do_narrow(wchar_t __wc, char __dfault) const { if (__wc >= 0 && __wc < 128 && _M_narrow_ok) return _M_narrow[__wc]; #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) __c_locale __old = __uselocale(_M_c_locale_ctype); #endif const int __c = wctob(__wc); #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) __uselocale(__old); #endif return (__c == EOF ? __dfault : static_cast<char>(__c)); } const wchar_t* ctype<wchar_t>:: do_narrow(const wchar_t* __lo, const wchar_t* __hi, char __dfault, char* __dest) const { #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) __c_locale __old = __uselocale(_M_c_locale_ctype); #endif if (_M_narrow_ok) while (__lo < __hi) { if (*__lo >= 0 && *__lo < 128) *__dest = _M_narrow[*__lo]; else { const int __c = wctob(*__lo); *__dest = (__c == EOF ? __dfault : static_cast<char>(__c)); } ++__lo; ++__dest; } else while (__lo < __hi) { const int __c = wctob(*__lo); *__dest = (__c == EOF ? __dfault : static_cast<char>(__c)); ++__lo; ++__dest; } #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) __uselocale(__old); #endif return __hi; } void ctype<wchar_t>::_M_initialize_ctype() throw() { #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) __c_locale __old = __uselocale(_M_c_locale_ctype); #endif wint_t __i; for (__i = 0; __i < 128; ++__i) { const int __c = wctob(__i); if (__c == EOF) break; else _M_narrow[__i] = static_cast<char>(__c); } if (__i == 128) _M_narrow_ok = true; else _M_narrow_ok = false; for (size_t __j = 0; __j < sizeof(_M_widen) / sizeof(wint_t); ++__j) _M_widen[__j] = btowc(__j); for (size_t __k = 0; __k <= 11; ++__k) { _M_bit[__k] = static_cast<mask>(_ISbit(__k)); _M_wmask[__k] = _M_convert_to_wmask(_M_bit[__k]); } #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) __uselocale(__old); #endif } #endif // _GLIBCXX_USE_WCHAR_T _GLIBCXX_END_NAMESPACE
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