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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
#include "util.h"
#include <stddef.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
size_t
u8strlen(const char *str)
{
size_t i, len;
if (!str) return 0;
len = 0;
for (i = 0; str[i]; i++) {
if ((str[i] & 0xC0) != 0x80)
len += 1;
}
return len;
}
size_t
u8strnlen(const char *str, size_t max)
{
size_t i, len;
if (!str) return 0;
len = 0;
for (i = 0; str[i] && i < max; i++) {
if ((str[i] & 0xC0) != 0x80)
len += 1;
}
return len;
}
size_t
u8rawlen(const char *str, size_t max)
{
size_t i, len;
if (!str) return 0;
len = 0;
for (i = 0; str[i] && len < max; i++)
if ((str[i] & 0xC0) != 0x80) {
len += 1;
}
return i;
}
size_t
print_pad(FILE *file, size_t len)
{
fprintf(file, "%*.s", (int) len, "");
return len;
}
size_t
print_hex(FILE *file, const void *bytes, size_t len)
{
size_t i;
for (i = 0; i < len; i++)
fprintf(file, "%02X", *(uint8_t *)(bytes + i));
return len * 2;
}
size_t
print_trunc(FILE *file, const char *str, size_t width)
{
size_t len;
len = u8strlen(str);
if (len > width && width >= 2) {
fprintf(file, "%*.*s..", (int) width - 2, (int) width - 2, str);
} else if (len > width&& width < 2) {
fprintf(file, "%*.*s", (int) width, (int) width, "..");
} else {
fprintf(file, "%s", str);
}
return MIN(len, width);
}
size_t
print_left(FILE *file, const char *str, size_t width, size_t padwidth)
{
size_t rawlen, u8len;
ssize_t ret;
u8len = MIN(u8strlen(str), width);
rawlen = u8rawlen(str, u8len);
/* make up for invisible bytes */
padwidth += rawlen - u8len;
ret = fprintf(file, "%-*.*s", (int) padwidth, (int) rawlen, str);
return (size_t) MAX(0, ret);
}
size_t
print_center(FILE *file, const char *str, size_t width, size_t padwidth)
{
size_t u8len, rawlen;
size_t lpad, rpad;
ssize_t ret;
u8len = MIN(width, u8strlen(str));
rawlen = u8rawlen(str, u8len);
lpad = MAX(padwidth - u8len, 0) / 2;
rpad = MAX(padwidth - u8len - lpad, 0);
/* make up for invisible bytes */
rpad += rawlen - u8len;
ret = fprintf(file, "%*s%*.*s%*s", (int) lpad, "",
(int) rawlen, (int) rawlen, str, (int) rpad, "");
return (size_t) MAX(0, ret);
}
size_t
print_right(FILE *file, const char *str, size_t width, size_t padwidth)
{
size_t rawlen, u8len;
ssize_t ret;
u8len = MIN(width, u8strlen(str));
rawlen = u8rawlen(str, u8len);
/* make up for invisible bytes */
padwidth += rawlen - u8len;
ret = fprintf(file, "%*.*s", (int) padwidth, (int) rawlen, str);
return (size_t) MAX(0, ret);
}
|
