// std::ctype implementation details, GNU version -*- C++ -*-
-// Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+// 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 2, or (at your option)
+// 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,
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
+// 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.
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
+// 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 "c++locale_internal.h"
+#include <cstdio>
+#include <bits/c++locale_internal.h>
+
+_GLIBCXX_BEGIN_NAMESPACE(std)
-namespace std
-{
// NB: The other ctype<char> specializations are in src/locale.cc and
// various /config/os/* files.
- template<>
- ctype_byname<char>::ctype_byname(const char* __s, size_t __refs)
- : ctype<char>(0, false, __refs)
- {
- _S_destroy_c_locale(_M_c_locale_ctype);
- _S_create_c_locale(_M_c_locale_ctype, __s);
- _M_toupper = _M_c_locale_ctype->__ctype_toupper;
- _M_tolower = _M_c_locale_ctype->__ctype_tolower;
- _M_table = _M_c_locale_ctype->__ctype_b;
- }
-
-#ifdef _GLIBCPP_USE_WCHAR_T
+ 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
{
__ret = __wctype_l("graph", _M_c_locale_ctype);
break;
default:
- __ret = 0;
+ __ret = __wmask_type();
}
return __ret;
- };
+ }
wchar_t
ctype<wchar_t>::do_toupper(wchar_t __c) const
bool
ctype<wchar_t>::
- do_is(mask __m, char_type __c) const
+ do_is(mask __m, wchar_t __c) const
{
- return static_cast<bool>(__iswctype_l(__c, _M_convert_to_wmask(__m),
- _M_c_locale_ctype));
+ // 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* __m) const
+ do_is(const wchar_t* __lo, const wchar_t* __hi, mask* __vec) const
{
- while (__lo < __hi && !this->do_is(*__m, *__lo))
- ++__lo;
- return __lo;
+ 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*
wchar_t
ctype<wchar_t>::
do_widen(char __c) const
- {
-#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
- __c_locale __old = __uselocale(_M_c_locale_ctype);
-#endif
- wchar_t __ret = btowc(__c);
-#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
- __uselocale(__old);
-#endif
- return __ret;
- }
+ { 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
{
-#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
- __c_locale __old = __uselocale(_M_c_locale_ctype);
-#endif
- mbstate_t __state;
- memset(static_cast<void*>(&__state), 0, sizeof(mbstate_t));
- mbsrtowcs(__dest, &__lo, __hi - __lo, &__state);
-#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
- __uselocale(__old);
-#endif
+ 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
- int __c = wctob(__wc);
+ const int __c = wctob(__wc);
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
__uselocale(__old);
#endif
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
__c_locale __old = __uselocale(_M_c_locale_ctype);
#endif
- size_t __offset = 0;
- while (true)
+ 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()
+ {
+#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 wchar_t* __start = __lo + __offset;
- size_t __len = __hi - __start;
-
- mbstate_t __state;
- memset(static_cast<void*>(&__state), 0, sizeof(mbstate_t));
- size_t __con = wcsrtombs(__dest + __offset, &__start, __len, &__state);
- if (__con != __len && __start != 0)
- {
- __offset = __start - __lo;
- __dest[__offset++] = __dfault;
- }
- else
+ 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
- return __hi;
}
-#endif // _GLIBCPP_USE_WCHAR_T
-}
+#endif // _GLIBCXX_USE_WCHAR_T
+
+_GLIBCXX_END_NAMESPACE
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