1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Copyright (c) 2015 Ingo Schwarze <schwarze@openbsd.org>
* Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "got_compat.h"
#include <sys/types.h>
#include <err.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <langinfo.h>
#include "got_error.h"
#include "got_utf8.h"
const struct got_error *
got_mbsavis(char** outp, int *widthp, const char *mbs)
{
const char *src; /* Iterate mbs. */
char *dst; /* Iterate *outp. */
wchar_t wc;
int total_width; /* Display width of the whole string. */
int width; /* Display width of a single Unicode char. */
int len; /* Length in bytes of UTF-8 encoded string. */
len = strlen(mbs);
if ((*outp = malloc(len + 1)) == NULL)
return got_error_from_errno("malloc");
if (MB_CUR_MAX == 1) {
memcpy(*outp, mbs, len + 1);
*widthp = len;
return NULL;
}
src = mbs;
dst = *outp;
total_width = 0;
while (*src != '\0') {
if ((len = mbtowc(&wc, src, MB_CUR_MAX)) == -1) {
total_width++;
*dst++ = '?';
src++;
} else if ((width = wcwidth(wc)) == -1) {
total_width++;
*dst++ = '?';
src += len;
} else {
total_width += width;
while (len-- > 0)
*dst++ = *src++;
}
}
*dst = '\0';
*widthp = total_width;
return NULL;
}
int
got_locale_is_utf8(void)
{
char *codeset = nl_langinfo(CODESET);
return (strcmp(codeset, "UTF-8") == 0);
}
|
