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// std::ctype implementation details, GNU version -*- C++ -*-
// Copyright (C) 2001, 2002 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)
// 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.
// 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.
// 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.
//
// 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"
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<wchar_t>::__wmask_type
ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const
{
__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 = 0;
}
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, char_type __c) const
{
return static_cast<bool>(__iswctype_l(__c, _M_convert_to_wmask(__m),
_M_c_locale_ctype));
}
const wchar_t*
ctype<wchar_t>::
do_is(const wchar_t* __lo, const wchar_t* __hi, mask* __m) const
{
while (__lo < __hi && !this->do_is(*__m, *__lo))
++__lo;
return __lo;
}
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
{
#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;
}
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
return __hi;
}
char
ctype<wchar_t>::
do_narrow(wchar_t __wc, char __dfault) const
{
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
__c_locale __old = __uselocale(_M_c_locale_ctype);
#endif
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
size_t __offset = 0;
while (true)
{
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
break;
}
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
__uselocale(__old);
#endif
return __hi;
}
#endif // _GLIBCPP_USE_WCHAR_T
}
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