locale/lc-ctype.c

   1 /* Define current locale data for LC_CTYPE category.
   2    Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include "localeinfo.h"
  21 #include <ctype.h>
  22 #include <endian.h>
  23 #include <stdint.h>
  24
  25 _NL_CURRENT_DEFINE (LC_CTYPE);
  26
  27 /* We are called after loading LC_CTYPE data to load it into
  28    the variables used by the ctype.h macros.
  29
  30    There are three arrays of short ints which need to be indexable
  31    from -128 to 255 inclusive.  Stored in the locale data file are
  32    a copy of each for each byte order.  */
  33
  34 void
  35 _nl_postload_ctype (void)
  36 {
  37 #define paste(a,b) paste1(a,b)
  38 #define paste1(a,b) a##b
  39
  40 #define current(type,x,offset) \
  41   ((const type *) _NL_CURRENT (LC_CTYPE, paste(_NL_CTYPE_,x)) + offset)
  42
  43   extern const uint32_t *__ctype32_b;
  44   extern const uint32_t *__ctype_names;
  45   extern const unsigned char *__ctype_width;
  46   extern const uint32_t *__ctype32_toupper;
  47   extern const uint32_t *__ctype32_tolower;
  48
  49   __ctype_b = current (uint16_t, CLASS, 128);
  50   __ctype_toupper = current (uint32_t, TOUPPER, 128);
  51   __ctype_tolower = current (uint32_t, TOLOWER, 128);
  52   __ctype32_b = current (uint32_t, CLASS32, 0);
  53   __ctype32_toupper = current (uint32_t, TOUPPER32, 0);
  54   __ctype32_tolower = current (uint32_t, TOLOWER32, 0);
  55   __ctype_names = current (uint32_t, NAMES, 0);
  56   __ctype_width = current (unsigned char, WIDTH, 0);
  57 }