libstdc++-v3/config/locale/darwin/ctype_members.cc

   1 // std::ctype implementation details, GNU version -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20 // USA.
  21
  22 // As a special exception, you may use this file as part of a free software
  23 // library without restriction.  Specifically, if other files instantiate
  24 // templates or use macros or inline functions from this file, or you compile
  25 // this file and link it with other files to produce an executable, this
  26 // file does not by itself cause the resulting executable to be covered by
  27 // the GNU General Public License.  This exception does not however
  28 // invalidate any other reasons why the executable file might be covered by
  29 // the GNU General Public License.
  30
  31 //
  32 // ISO C++ 14882: 22.2.1.1.2  ctype virtual functions.
  33 //
  34
  35 // Written by Benjamin Kosnik <bkoz@redhat.com>
  36
  37 #include <locale>
  38 #include <bits/c++locale_internal.h>
  39 #include <cstdlib>
  40 #include <cstring>
  41 #include <cstdio>
  42
  43 namespace std
  44 {
  45   // NB: The other ctype<char> specializations are in src/locale.cc and
  46   // various /config/os/* files.
  47
  48   ctype_byname<char>::ctype_byname(const char* __s, size_t __refs)
  49   : ctype<char>(0, false, __refs)
  50   {
  51     if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0)
  52       {
  53         this->_S_destroy_c_locale(this->_M_c_locale_ctype);
  54         this->_S_create_c_locale(this->_M_c_locale_ctype, __s);
  55       }
  56   }
  57
  58   ctype_byname<char>::~ctype_byname()
  59   { }
  60
  61 #ifdef _GLIBCXX_USE_WCHAR_T
  62   ctype<wchar_t>::__wmask_type
  63   ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const
  64   {
  65     // Darwin uses the same codes for 'char' as 'wchar_t', so this routine
  66     // never gets called.
  67     return __m;
  68   };
  69
  70   wchar_t
  71   ctype<wchar_t>::do_toupper(wchar_t __c) const
  72   { return towupper(__c); }
  73
  74   const wchar_t*
  75   ctype<wchar_t>::do_toupper(wchar_t* __lo, const wchar_t* __hi) const
  76   {
  77     while (__lo < __hi)
  78       {
  79         *__lo = towupper(*__lo);
  80         ++__lo;
  81       }
  82     return __hi;
  83   }
  84
  85   wchar_t
  86   ctype<wchar_t>::do_tolower(wchar_t __c) const
  87   { return towlower(__c); }
  88
  89   const wchar_t*
  90   ctype<wchar_t>::do_tolower(wchar_t* __lo, const wchar_t* __hi) const
  91   {
  92     while (__lo < __hi)
  93       {
  94         *__lo = towlower(*__lo);
  95         ++__lo;
  96       }
  97     return __hi;
  98   }
  99
 100   wchar_t
 101   ctype<wchar_t>::
 102   do_widen(char __c) const
 103   { return _M_widen[static_cast<unsigned char>(__c)]; }
 104
 105   const char*
 106   ctype<wchar_t>::
 107   do_widen(const char* __lo, const char* __hi, wchar_t* __dest) const
 108   {
 109     while (__lo < __hi)
 110       {
 111         *__dest = _M_widen[static_cast<unsigned char>(*__lo)];
 112         ++__lo;
 113         ++__dest;
 114       }
 115     return __hi;
 116   }
 117
 118   char
 119   ctype<wchar_t>::
 120   do_narrow(wchar_t __wc, char __dfault) const
 121   {
 122     if (__wc >= 0 && __wc < 128 && _M_narrow_ok)
 123       return _M_narrow[__wc];
 124     const int __c = wctob(__wc);
 125     return (__c == EOF ? __dfault : static_cast<char>(__c));
 126   }
 127
 128   const wchar_t*
 129   ctype<wchar_t>::
 130   do_narrow(const wchar_t* __lo, const wchar_t* __hi, char __dfault,
 131             char* __dest) const
 132   {
 133     if (_M_narrow_ok)
 134       while (__lo < __hi)
 135         {
 136           if (*__lo >= 0 && *__lo < 128)
 137             *__dest = _M_narrow[*__lo];
 138           else
 139             {
 140               const int __c = wctob(*__lo);
 141               *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
 142             }
 143           ++__lo;
 144           ++__dest;
 145         }
 146     else
 147       while (__lo < __hi)
 148         {
 149           const int __c = wctob(*__lo);
 150           *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
 151           ++__lo;
 152           ++__dest;
 153         }
 154     return __hi;
 155   }
 156
 157   void
 158   ctype<wchar_t>::_M_initialize_ctype()
 159   {
 160     wint_t __i;
 161     for (__i = 0; __i < 128; ++__i)
 162       {
 163         const int __c = wctob(__i);
 164         if (__c == EOF)
 165           break;
 166         else
 167           _M_narrow[__i] = static_cast<char>(__c);
 168       }
 169     if (__i == 128)
 170       _M_narrow_ok = true;
 171     else
 172       _M_narrow_ok = false;
 173     for (size_t __i = 0;
 174          __i < sizeof(_M_widen) / sizeof(wint_t); ++__i)
 175       _M_widen[__i] = btowc(__i);
 176   }
 177 #endif //  _GLIBCXX_USE_WCHAR_T
 178 }