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
|
#include "percent.h"
static unsigned char fromhex(unsigned char t)
{
unsigned char u;
u = t - 'a';
if (u < 6) return u + 10;
u = t - 'A';
if (u < 6) return u + 10;
u = t - '0';
if (u < 10) return u;
return 0;
}
void percent(stralloc *sa)
{
int i;
int j;
char ch;
i = j = 0;
for (;;) {
if (j >= sa->len) break;
ch = sa->s[j++];
if (ch == '%') {
if (j >= sa->len) break;
ch = 16 * fromhex(sa->s[j++]);
if (j >= sa->len) break;
ch += fromhex(sa->s[j++]);
}
sa->s[i++] = ch;
}
sa->len = i;
}
|
