gnulib/lib/unicase/invariant.h

/* Internal functions for Unicode character case mappings.
   Copyright (C) 2009-2020 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 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.

   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 <stdbool.h>
#include <stddef.h>

#include "unitypes.h"
#include "uninorm.h"

/* Return true if mapping NFD(S) to via MAPPING is a no-op.  */
extern int
       u8_is_invariant (const uint8_t *s, size_t n,
                        uint8_t * (*mapping) (const uint8_t *s, size_t n, const char *iso639_language,
                                              uninorm_t nf,
                                              uint8_t *resultbuf, size_t *lengthp),
                        const char *iso639_language,
                        bool *resultp);
extern int
       u16_is_invariant (const uint16_t *s, size_t n,
                         uint16_t * (*mapping) (const uint16_t *s, size_t n, const char *iso639_language,
                                                uninorm_t nf,
                                                uint16_t *resultbuf, size_t *lengthp),
                         const char *iso639_language,
                         bool *resultp);
extern int
       u32_is_invariant (const uint32_t *s, size_t n,
                         uint32_t * (*mapping) (const uint32_t *s, size_t n, const char *iso639_language,
                                                uninorm_t nf,
                                                uint32_t *resultbuf, size_t *lengthp),
                         const char *iso639_language,
                         bool *resultp);