text: /* Normalization of Unicode strings.
     Copyright (C) 2009-2016 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 <http://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;
  };
  