wctype/wcfuncs.c

   1 /* Copyright (C) 1996-2001, 2002, 2005 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <ctype.h>
  20 #include <wctype.h>
  21 #include <locale/localeinfo.h>
  22
  23 #include "wchar-lookup.h"
  24
  25 /* Provide real-function versions of all the wctype macros.  */
  26
  27 #define func(name, type)                                                      \
  28   extern int __isw##name (wint_t __wc);                                       \
  29   int                                                                         \
  30   __isw##name (wint_t wc)                                                     \
  31   {                                                                           \
  32     if (isascii (wc))                                                         \
  33       return is##name ((int) wc);                                             \
  34     size_t i = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_CLASS_OFFSET) + type;    \
  35     const char *desc = _NL_CURRENT (LC_CTYPE, i);                             \
  36     return wctype_table_lookup (desc, wc);                                    \
  37   }                                                                           \
  38   weak_alias (__isw##name, isw##name)
  39
  40 #undef iswalnum
  41 func (alnum, __ISwalnum)
  42 libc_hidden_weak (iswalnum)
  43 #undef iswalpha
  44 func (alpha, __ISwalpha)
  45 libc_hidden_weak (iswalpha)
  46 #undef iswblank
  47 func (blank, __ISwblank)
  48 #undef iswcntrl
  49 func (cntrl, __ISwcntrl)
  50 #undef iswdigit
  51 func (digit, __ISwdigit)
  52 libc_hidden_weak (iswdigit)
  53 #undef iswlower
  54 func (lower, __ISwlower)
  55 libc_hidden_weak (iswlower)
  56 #undef iswgraph
  57 func (graph, __ISwgraph)
  58 #undef iswprint
  59 func (print, __ISwprint)
  60 #undef iswpunct
  61 func (punct, __ISwpunct)
  62 #undef iswspace
  63 func (space, __ISwspace)
  64 libc_hidden_weak (iswspace)
  65 #undef iswupper
  66 func (upper, __ISwupper)
  67 #undef iswxdigit
  68 func (xdigit, __ISwxdigit)
  69 libc_hidden_weak (iswxdigit)
  70
  71 #undef towlower
  72 wint_t
  73 towlower (wc)
  74      wint_t wc;
  75 {
  76   size_t i = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MAP_OFFSET) + __TOW_tolower;
  77   const char *desc = _NL_CURRENT (LC_CTYPE, i);
  78   return wctrans_table_lookup (desc, wc);
  79 }
  80 libc_hidden_def (towlower)
  81
  82 #undef towupper
  83 wint_t
  84 towupper (wc)
  85      wint_t wc;
  86 {
  87   size_t i = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MAP_OFFSET) + __TOW_toupper;
  88   const char *desc = _NL_CURRENT (LC_CTYPE, i);
  89   return wctrans_table_lookup (desc, wc);
  90 }
  91 libc_hidden_def (towupper)