lib/wctrans-impl.h

   1 /* Get descriptor for a wide character case conversion.
   2    Copyright (C) 2011-2020 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2011.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 wctrans_t
  19 wctrans (const char *name)
  20 {
  21   if (name[0] == 't'
  22       && name[1] == 'o')
  23     switch (name[2])
  24       {
  25       case 'l':
  26         if (strcmp (name + 3, "ower") == 0)
  27           return (wctrans_t) towlower;
  28         break;
  29       case 'u':
  30         if (strcmp (name + 3, "pper") == 0)
  31           return (wctrans_t) towupper;
  32         break;
  33       default:
  34         break;
  35       }
  36   return NULL;
  37 }