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/* Copyright 2009-2023
* Kaz Kylheku <kaz@kylheku.com>
* Vancouver, Canada
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
size_t utf8_from_buf(wchar_t *, const unsigned char *, size_t nbytes);
size_t utf8_to_buf(unsigned char *dst, const wchar_t *wsrc, int null_term);
size_t utf8_to(char *, const wchar_t *);
wchar_t *utf8_dup_from(const char *);
wchar_t *utf8_dup_from_buf(const char *str, size_t size);
char *utf8_dup_to(const wchar_t *);
unsigned char *utf8_dup_to_buf(const wchar_t *, size_t *pnbytes,
int null_term);
enum utf8_state { utf8_init, utf8_more1, utf8_more2, utf8_more3 };
#define UTF8_ADMIT_NUL 1
typedef struct utf8_decoder {
enum utf8_state state;
int flags;
wchar_t wch, wch_min;
int head, tail, back;
int buf[8];
} utf8_decoder_t;
int utf8_encode(wchar_t, int (*put)(int ch, mem_t *ctx), mem_t *ctx);
void utf8_decoder_init(utf8_decoder_t *);
wint_t utf8_decode(utf8_decoder_t *,int (*get)(mem_t *ctx), mem_t *ctx);
FILE *w_fopen(const wchar_t *, const wchar_t *);
FILE *w_freopen(const wchar_t *, const wchar_t *, FILE *);
FILE *w_fdopen(int, const wchar_t *);
int w_remove(const wchar_t *);
int w_rename(const wchar_t *, const wchar_t *);
#ifdef UTF8_DECL_OPENDIR
DIR *w_opendir(const wchar_t *wname);
#endif
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