1 /*
2  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #ifndef UTF8_H
18 #define UTF8_H
19 
20 #include <stddef.h>
21 #include <stdint.h>
22 
23 /* utf8.c */
24 uint32_t	 utf8_decode(uint32_t*restrict, uint32_t*restrict, uint8_t);
25 size_t		 utf8_encode(uint32_t, char*);
26 char		*utf8_nth(char*, size_t);
27 size_t		 utf8_cplen(char*);
28 size_t		 utf8_chwidth(uint32_t);
29 size_t		 utf8_snwidth(const char*, size_t);
30 size_t		 utf8_swidth(const char*);
31 size_t		 utf8_swidth_between(const char*, const char*);
32 char		*utf8_next_cp(const char*);
33 char		*utf8_prev_cp(const char*, const char*);
34 int		 emojied_line(const char *, const char **);
35 
36 /* emoji-matcher.c */
37 int		 is_emoji(uint32_t);
38 
39 #endif