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/* Chrysalide - Outil d'analyse de fichiers binaires
* utf8.h - prototypes pour un support minimaliste mais adapté de l'encodage UTF-8
*
* Copyright (C) 2018-2020 Cyrille Bagard
*
* This file is part of Chrysalide.
*
* Chrysalide is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Chrysalide 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Chrysalide. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _COMMON_UTF8_H
#define _COMMON_UTF8_H
#include <stdint.h>
#include <sys/types.h>
/* Représentation d'un caractère */
typedef uint32_t unichar_t;
/**
* Erreurs qu'il est possible de rencontrer.
*/
#define UTF8_ERROR_MALFORMED ((unichar_t)-1)
#define UTF8_ERROR_TOO_LONG ((unichar_t)-2)
#define UTF8_ERROR_TRUNCATED ((unichar_t)-3)
#define UTF8_ERROR_MISSING ((unichar_t)-4)
#define UTF8_ERROR_WASTING ((unichar_t)-5)
#define IS_UTF8_ERROR(v) (v & (1u << 31))
/* Procède à la lecture d'un caractère dans une chaîne en UTF-8. */
unichar_t decode_utf8_char(const unsigned char *, size_t, size_t *);
/* Procède à la lecture d'un caractère d'une chaîne en MUTF-8. */
unichar_t decode_mutf8_char(const unsigned char *, size_t, size_t *);
#endif /* _COMMON_UTF8_H */
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