wctype/wcextra_l.c

   1 /* Additional non standardized wide character classification functions.
   2    Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Library General Public License as
   8    published by the Free Software Foundation; either version 2 of the
   9    License, or (at your option) any later version.
  10
  11    The GNU C 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 GNU
  14    Library General Public License for more details.
  15
  16    You should have received a copy of the GNU Library General Public
  17    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  18    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include <stdint.h>
  22 #define __NO_WCTYPE     1
  23 #include <wctype.h>
  24
  25 #define USE_IN_EXTENDED_LOCALE_MODEL    1
  26 #include "cname-lookup.h"
  27 #include "wchar-lookup.h"
  28
  29
  30 int
  31 (__iswblank_l) (wint_t wc, __locale_t locale)
  32 {
  33   if (locale->__locales[LC_CTYPE]->values[_NL_ITEM_INDEX (_NL_CTYPE_HASH_SIZE)].word != 0)
  34     {
  35       /* Old locale format.  */
  36       const uint32_t *class32_b;
  37       size_t idx;
  38
  39       idx = cname_lookup (wc, locale);
  40       if (idx == ~((size_t) 0))
  41         return 0;
  42
  43       class32_b = (uint32_t *)
  44         locale->__locales[LC_CTYPE]->values[_NL_ITEM_INDEX (_NL_CTYPE_CLASS32)].string;
  45
  46       return class32_b[idx] & _ISwbit (__ISwblank);
  47     }
  48   else
  49     {
  50       /* New locale format.  */
  51       size_t i = locale->__locales[LC_CTYPE]->values[_NL_ITEM_INDEX (_NL_CTYPE_CLASS_OFFSET)].word + __ISwblank;
  52       const char *desc = locale->__locales[LC_CTYPE]->values[i].string;
  53       return wctype_table_lookup (desc, wc);
  54     }
  55 }