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
|
#include <u.h>
#include <libc.h>
#include <draw.h>
/*
* Default version: convert to file name
*/
char*
subfontname(char *cfname, char *fname, int maxdepth)
{
char *t, *u, tmp1[64], tmp2[64];
int i;
if(strcmp(cfname, "*default*") == 0)
return strdup(cfname);
t = cfname;
if(t[0] != '/'){
snprint(tmp2, sizeof tmp2, "%s", fname);
u = utfrrune(tmp2, '/');
if(u)
u[0] = 0;
else
strcpy(tmp2, ".");
snprint(tmp1, sizeof tmp1, "%s/%s", tmp2, t);
t = tmp1;
}
if(maxdepth > 8)
maxdepth = 8;
for(i=3; i>=0; i--){
if((1<<i) > maxdepth)
continue;
/* try i-bit grey */
snprint(tmp2, sizeof tmp2, "%s.%d", t, i);
if(access(tmp2, AREAD) == 0)
return strdup(tmp2);
}
/* try default */
if(access(t, AREAD) == 0)
return strdup(t);
return nil;
}
|