lib/unictype/joininggroup_name.c

   1 /* Arabic joining group of Unicode characters.
   2    Copyright (C) 2011-2024 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2011.
   4
   5    This file is free software.
   6    It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
   7    You can redistribute it and/or modify it under either
   8      - the terms of the GNU Lesser General Public License as published
   9        by the Free Software Foundation, either version 3, or (at your
  10        option) any later version, or
  11      - the terms of the GNU General Public License as published by the
  12        Free Software Foundation; either version 2, or (at your option)
  13        any later version, or
  14      - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
  15
  16    This file is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19    Lesser General Public License and the GNU General Public License
  20    for more details.
  21
  22    You should have received a copy of the GNU Lesser General Public
  23    License and of the GNU General Public License along with this
  24    program.  If not, see <https://www.gnu.org/licenses/>.  */
  25
  26 #include <config.h>
  27
  28 /* Specification.  */
  29 #include "unictype.h"
  30
  31 /* Use a string pool, rather than a two-dimensional array, because the strings
  32    have very different lengths.  */
  33
  34 struct joining_group_stringpool_t
  35   {
  36 #define ELEM(tag,string) char tag[sizeof (string)];
  37 #include "unictype/joininggroup_name.h"
  38 #undef ELEM
  39   };
  40
  41 static const struct joining_group_stringpool_t joining_group_stringpool_contents =
  42   {
  43 #define ELEM(tag,string) string,
  44 #include "unictype/joininggroup_name.h"
  45 #undef ELEM
  46   };
  47 #define joining_group_stringpool ((const char *) &joining_group_stringpool_contents)
  48
  49 static const int joining_group_index[] =
  50   {
  51 #define ELEM(tag,string) (int)(size_t)&((struct joining_group_stringpool_t *)0)->tag,
  52 #include "unictype/joininggroup_name.h"
  53 #undef ELEM
  54   };
  55
  56 const char *
  57 uc_joining_group_name (int joining_group)
  58 {
  59   if (joining_group >= 0
  60       && joining_group < sizeof (joining_group_index) / sizeof (joining_group_index[0]))
  61     return joining_group_stringpool + joining_group_index[joining_group];
  62   return NULL;
  63 }