contrib/gcc-8.0/libstdc++-v3/config/locale/dragonfly/ctype_members.cc

   1 // std::ctype implementation details, DragonFly version -*- C++ -*-
   2
   3 // Copyright (C) 2014-2018 Free Software Foundation, Inc.
   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 3, 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 // Under Section 7 of GPL version 3, you are granted additional
  17 // permissions described in the GCC Runtime Library Exception, version
  18 // 3.1, as published by the Free Software Foundation.
  19
  20 // You should have received a copy of the GNU General Public License and
  21 // a copy of the GCC Runtime Library Exception along with this program;
  22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 //
  26 // ISO C++ 14882: 22.2.1.1.2  ctype virtual functions.
  27 //
  28
  29 // Written by Benjamin Kosnik <bkoz@redhat.com>
  30 // Modified for DragonFly by John Marino <gnugcc@marino.st>
  31
  32 #include <locale>
  33 #include <cstring>
  34 #include <cstdio>
  35
  36 #ifndef _ISbit
  37 #define _ISbit(bit) ((bit) < 8 ? ((1 << (bit)) << 8) : ((1 << (bit)) >> 8))
  38 #endif
  39
  40 namespace std _GLIBCXX_VISIBILITY(default)
  41 {
  42 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  43
  44   // NB: The other ctype<char> specializations are in src/locale.cc and
  45   // various /config/os/* files.
  46   ctype_byname<char>::ctype_byname(const char* __s, size_t __refs)
  47   : ctype<char>(0, false, __refs)
  48   {
  49     if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0)
  50       {
  51         this->_S_destroy_c_locale(this->_M_c_locale_ctype);
  52         this->_S_create_c_locale(this->_M_c_locale_ctype, __s);
  53       }
  54   }
  55
  56   ctype_byname<char>::~ctype_byname()
  57   { }
  58
  59 #ifdef _GLIBCXX_USE_WCHAR_T
  60   ctype<wchar_t>::__wmask_type
  61   ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const throw()
  62   {
  63     __wmask_type __ret;
  64     switch (__m)
  65       {
  66       case space:
  67         __ret = wctype_l("space", (locale_t)_M_c_locale_ctype);
  68         break;
  69       case print:
  70         __ret = wctype_l("print", (locale_t)_M_c_locale_ctype);
  71         break;
  72       case cntrl:
  73         __ret = wctype_l("cntrl", (locale_t)_M_c_locale_ctype);
  74         break;
  75       case upper:
  76         __ret = wctype_l("upper", (locale_t)_M_c_locale_ctype);
  77         break;
  78       case lower:
  79         __ret = wctype_l("lower", (locale_t)_M_c_locale_ctype);
  80         break;
  81       case alpha:
  82         __ret = wctype_l("alpha", (locale_t)_M_c_locale_ctype);
  83         break;
  84       case digit:
  85         __ret = wctype_l("digit", (locale_t)_M_c_locale_ctype);
  86         break;
  87       case punct:
  88         __ret = wctype_l("punct", (locale_t)_M_c_locale_ctype);
  89         break;
  90       case xdigit:
  91         __ret = wctype_l("xdigit", (locale_t)_M_c_locale_ctype);
  92         break;
  93       case alnum:
  94         __ret = wctype_l("alnum", (locale_t)_M_c_locale_ctype);
  95         break;
  96       case graph:
  97         __ret = wctype_l("graph", (locale_t)_M_c_locale_ctype);
  98         break;
  99       case blank:
 100         __ret = wctype_l("blank", (locale_t)_M_c_locale_ctype);
 101         break;
 102       default:
 103         __ret = __wmask_type();
 104       }
 105     return __ret;
 106   }
 107
 108   wchar_t
 109   ctype<wchar_t>::do_toupper(wchar_t __c) const
 110   { return towupper_l(__c, (locale_t)_M_c_locale_ctype); }
 111
 112   const wchar_t*
 113   ctype<wchar_t>::do_toupper(wchar_t* __lo, const wchar_t* __hi) const
 114   {
 115     while (__lo < __hi)
 116       {
 117         *__lo = towupper_l(*__lo, (locale_t)_M_c_locale_ctype);
 118         ++__lo;
 119       }
 120     return __hi;
 121   }
 122
 123   wchar_t
 124   ctype<wchar_t>::do_tolower(wchar_t __c) const
 125   { return towlower_l(__c, (locale_t)_M_c_locale_ctype); }
 126
 127   const wchar_t*
 128   ctype<wchar_t>::do_tolower(wchar_t* __lo, const wchar_t* __hi) const
 129   {
 130     while (__lo < __hi)
 131       {
 132         *__lo = towlower_l(*__lo, (locale_t)_M_c_locale_ctype);
 133         ++__lo;
 134       }
 135     return __hi;
 136   }
 137
 138   wchar_t
 139   ctype<wchar_t>::
 140   do_widen(char __c) const
 141   { return _M_widen[static_cast<unsigned char>(__c)]; }
 142
 143   const char*
 144   ctype<wchar_t>::
 145   do_widen(const char* __lo, const char* __hi, wchar_t* __dest) const
 146   {
 147     while (__lo < __hi)
 148       {
 149         *__dest = _M_widen[static_cast<unsigned char>(*__lo)];
 150         ++__lo;
 151         ++__dest;
 152       }
 153     return __hi;
 154   }
 155
 156   char
 157   ctype<wchar_t>::
 158   do_narrow(wchar_t __wc, char __dfault) const
 159   {
 160     if (__wc >= 0 && __wc < 128 && _M_narrow_ok)
 161       return _M_narrow[__wc];
 162     __c_locale __old = (__c_locale)uselocale((locale_t)_M_c_locale_ctype);
 163     const int __c = wctob(__wc);
 164     uselocale((locale_t)__old);
 165     return (__c == EOF ? __dfault : static_cast<char>(__c));
 166   }
 167
 168   const wchar_t*
 169   ctype<wchar_t>::
 170   do_narrow(const wchar_t* __lo, const wchar_t* __hi, char __dfault,
 171             char* __dest) const
 172   {
 173     __c_locale __old = (__c_locale)uselocale((locale_t)_M_c_locale_ctype);
 174     if (_M_narrow_ok)
 175       while (__lo < __hi)
 176         {
 177           if (*__lo >= 0 && *__lo < 128)
 178             *__dest = _M_narrow[*__lo];
 179           else
 180             {
 181               const int __c = wctob(*__lo);
 182               *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
 183             }
 184           ++__lo;
 185           ++__dest;
 186         }
 187     else
 188       while (__lo < __hi)
 189         {
 190           const int __c = wctob(*__lo);
 191           *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
 192           ++__lo;
 193           ++__dest;
 194         }
 195     uselocale((locale_t)__old);
 196     return __hi;
 197   }
 198
 199   void
 200   ctype<wchar_t>::_M_initialize_ctype() throw()
 201   {
 202     __c_locale __old = (__c_locale)uselocale((locale_t)_M_c_locale_ctype);
 203     wint_t __i;
 204     for (__i = 0; __i < 128; ++__i)
 205       {
 206         const int __c = wctob(__i);
 207         if (__c == EOF)
 208           break;
 209         else
 210           _M_narrow[__i] = static_cast<char>(__c);
 211       }
 212     if (__i == 128)
 213       _M_narrow_ok = true;
 214     else
 215       _M_narrow_ok = false;
 216     for (size_t __j = 0;
 217          __j < sizeof(_M_widen) / sizeof(wint_t); ++__j)
 218       _M_widen[__j] = btowc(__j);
 219
 220     for (size_t __k = 0; __k <= 11; ++__k)
 221       {
 222         _M_bit[__k] = static_cast<mask>(_ISbit(__k));
 223         _M_wmask[__k] = _M_convert_to_wmask(_M_bit[__k]);
 224       }
 225     uselocale((locale_t)__old);
 226   }
 227 #endif //  _GLIBCXX_USE_WCHAR_T
 228
 229 _GLIBCXX_END_NAMESPACE_VERSION
 230 } // namespace