1/*
2 * Copyright (c) 2016 Joshua Rubin <joshua@rubixconsulting.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 MIND, USE, DATA OR PROFITS, WHETHER
13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
14 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include <sys/types.h>
18
19#include <utf8proc.h>
20
21#include "compat.h"
22
23int
24utf8proc_wcwidth(wchar_t wc)
25{
26	int	cat;
27
28	cat = utf8proc_category(wc);
29	if (cat == UTF8PROC_CATEGORY_CO) {
30		/*
31		 * The private use category is where powerline and similar
32		 * codepoints are stored, they have "ambiguous" width - use 1.
33		 */
34		return (1);
35	}
36	return (utf8proc_charwidth(wc));
37}
38
39int
40utf8proc_mbtowc(wchar_t *pwc, const char *s, size_t n)
41{
42	utf8proc_ssize_t	slen;
43
44	if (s == NULL)
45		return (0);
46
47	/*
48	 * *pwc == -1 indicates invalid codepoint
49	 * slen < 0 indicates an error
50	 */
51	slen = utf8proc_iterate(s, n, pwc);
52	if (*pwc == (wchar_t)-1 || slen < 0)
53		return (-1);
54	return (slen);
55}
56
57int
58utf8proc_wctomb(char *s, wchar_t wc)
59{
60	if (s == NULL)
61		return (0);
62
63	if (!utf8proc_codepoint_valid(wc))
64		return (-1);
65	return (utf8proc_encode_char(wc, s));
66}
67