blob: 1b222c52416e413db337dd22e098a4287fea92e0 (
plain)
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
|
#include "lib9.h"
static char qsep[] = " \t\r\n";
static char*
qtoken(char *s)
{
int quoting;
char *t;
quoting = 0;
t = s; /* s is output string, t is input string */
while(*t!='\0' && (quoting || utfrune(qsep, *t)==nil)){
if(*t != '\''){
*s++ = *t++;
continue;
}
/* *t is a quote */
if(!quoting){
quoting = 1;
t++;
continue;
}
/* quoting and we're on a quote */
if(t[1] != '\''){
/* end of quoted section; absorb closing quote */
t++;
quoting = 0;
continue;
}
/* doubled quote; fold one quote into two */
t++;
*s++ = *t++;
}
if(*s != '\0'){
*s = '\0';
if(t == s)
t++;
}
return t;
}
int
tokenize(char *s, char **args, int maxargs)
{
int nargs;
for(nargs=0; nargs<maxargs; nargs++){
while(*s!='\0' && utfrune(qsep, *s)!=nil)
s++;
if(*s == '\0')
break;
args[nargs] = s;
s = qtoken(s);
}
return nargs;
}
|
