/* Normalization of Unicode strings.
   Copyright (C) 2009-2018 Free Software Foundation, Inc.
   Written by Bruno Haible <bruno@clisp.org>, 2009.

   This program is free software: you can redistribute it and/or
   modify it under the terms of either:

     * the GNU Lesser General Public License as published by the Free
       Software Foundation; either version 3 of the License, or (at your
       option) any later version.

   or

     * the GNU General Public License as published by the Free
       Software Foundation; either version 2 of the License, or (at your
       option) any later version.

   or both in parallel, as here.
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

#include "unitypes.h"

/* Complete definition of normalization form descriptor.  */
struct unicode_normalization_form
{
  /* Bit mask containing meta-information.
     This must be the first field.  */
  unsigned int description;
  #define NF_IS_COMPAT_DECOMPOSING  (1 << 0)
  #define NF_IS_COMPOSING           (1 << 1)
  /* Function that decomposes a Unicode character.  */
  int (*decomposer) (ucs4_t uc, ucs4_t *decomposition);
  /* Function that combines two Unicode characters, a starter and another
     character.  */
  ucs4_t (*composer) (ucs4_t uc1, ucs4_t uc2);
  /* Decomposing variant.  */
  const struct unicode_normalization_form *decomposing_variant;
};