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
|
#include "unicode_config.h"
#include "courier-unicode.h"
#include "eastasianwidth.h"
#include "linebreaktab_internal.h"
#include <stdlib.h>
unicode_eastasia_t unicode_eastasia(char32_t c)
{
size_t b=0;
size_t e=sizeof(unicode_eastasia_tab)/sizeof(unicode_eastasia_tab[0]);
while (b < e)
{
size_t n=b + (e-b)/2;
if (c >= unicode_eastasia_tab[n][0])
{
if (c <= unicode_eastasia_tab[n][1])
return unicode_eastasia_v[n];
b=n+1;
}
else
{
e=n;
}
}
return UNICODE_EASTASIA_N;
}
int unicode_wcwidth(char32_t c)
{
switch (unicode_lb_lookup(c)) {
case UNICODE_LB_BK:
case UNICODE_LB_CR:
case UNICODE_LB_LF:
case UNICODE_LB_CM:
case UNICODE_LB_NL:
case UNICODE_LB_WJ:
case UNICODE_LB_ZW:
return 0;
default:
break;
}
switch (unicode_eastasia(c)) {
case UNICODE_EASTASIA_F:
case UNICODE_EASTASIA_W:
return 2;
}
return 1;
}
size_t unicode_wcwidth_str(const char32_t *c)
{
size_t w=0;
while (*c)
w += unicode_wcwidth(*c++);
return w;
}
|
