wctype/towctrans.c

   1 /* Map wide character using given mapping.
   2    Copyright (C) 1996, 1997 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 <wctype.h>
  21
  22 /* Define the lookup function.  */
  23 #include "cname-lookup.h"
  24
  25 wint_t
  26 towctrans (wint_t wc, wctrans_t desc)
  27 {
  28   size_t idx;
  29
  30   idx = cname_lookup (wc);
  31   if (idx == ~((size_t) 0))
  32     /* Character is not known.  Default action is to simply return it.  */
  33     return wc;
  34
  35   return (wint_t) desc[idx];
  36 }