wctype/wcfuncs.c

   1 /* Copyright (C) 1996-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <ctype.h>
  19 #include <wctype.h>
  20 #include <locale/localeinfo.h>
  21
  22 #include "wchar-lookup.h"
  23
  24 /* Provide real-function versions of all the wctype macros.  */
  25
  26 #define func(name, type)                                                      \
  27   extern int __isw##name (wint_t __wc);                                       \
  28   int                                                                         \
  29   __isw##name (wint_t wc)                                                     \
  30   {                                                                           \
  31     if (isascii (wc))                                                         \
  32       return is##name ((int) wc);                                             \
  33     size_t i = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_CLASS_OFFSET) + type;    \
  34     const char *desc = _NL_CURRENT (LC_CTYPE, i);                             \
  35     return wctype_table_lookup (desc, wc);                                    \
  36   }                                                                           \
  37   weak_alias (__isw##name, isw##name)
  38
  39 #undef iswalnum
  40 func (alnum, __ISwalnum)
  41 libc_hidden_weak (iswalnum)
  42 #undef iswalpha
  43 func (alpha, __ISwalpha)
  44 libc_hidden_weak (iswalpha)
  45 #undef iswblank
  46 func (blank, __ISwblank)
  47 #undef iswcntrl
  48 func (cntrl, __ISwcntrl)
  49 #undef iswdigit
  50 func (digit, __ISwdigit)
  51 libc_hidden_weak (iswdigit)
  52 #undef iswlower
  53 func (lower, __ISwlower)
  54 libc_hidden_weak (iswlower)
  55 #undef iswgraph
  56 func (graph, __ISwgraph)
  57 #undef iswprint
  58 func (print, __ISwprint)
  59 #undef iswpunct
  60 func (punct, __ISwpunct)
  61 #undef iswspace
  62 func (space, __ISwspace)
  63 libc_hidden_weak (iswspace)
  64 #undef iswupper
  65 func (upper, __ISwupper)
  66 #undef iswxdigit
  67 func (xdigit, __ISwxdigit)
  68 libc_hidden_weak (iswxdigit)
  69
  70 #undef towlower
  71 wint_t
  72 towlower (wc)
  73      wint_t wc;
  74 {
  75   size_t i = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MAP_OFFSET) + __TOW_tolower;
  76   const char *desc = _NL_CURRENT (LC_CTYPE, i);
  77   return wctrans_table_lookup (desc, wc);
  78 }
  79 libc_hidden_def (towlower)
  80
  81 #undef towupper
  82 wint_t
  83 towupper (wc)
  84      wint_t wc;
  85 {
  86   size_t i = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MAP_OFFSET) + __TOW_toupper;
  87   const char *desc = _NL_CURRENT (LC_CTYPE, i);
  88   return wctrans_table_lookup (desc, wc);
  89 }
  90 libc_hidden_def (towupper)