You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
991 B
75 lines
991 B
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <shell.h>
|
|
|
|
size_t count_args(const char *line)
|
|
{
|
|
const char *p = line;
|
|
size_t n = 0;
|
|
|
|
while (*p != '\0') {
|
|
p += strspn(p, " \n\r");
|
|
|
|
while (*p != '\0' && *p != ' ') {
|
|
if (*p++ != '\"')
|
|
continue;
|
|
|
|
while (*p != '\0' && *p != '\"')
|
|
++p;
|
|
|
|
if (*p == '\"')
|
|
++p;
|
|
}
|
|
|
|
++n;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
char **parse_args(const char *line, size_t *argc)
|
|
{
|
|
char **argv;
|
|
char **arg;
|
|
const char *p = line;
|
|
char *s;
|
|
size_t n;
|
|
|
|
if (!argc)
|
|
argc = &n;
|
|
|
|
*argc = count_args(line);
|
|
|
|
if (!(argv = malloc(*argc * sizeof(char *) + strlen(line) + 1)))
|
|
return NULL;
|
|
|
|
arg = argv;
|
|
s = (char *)argv + *argc * sizeof(char *);
|
|
|
|
while (*p != '\0') {
|
|
p += strspn(p, " \n\r");
|
|
*arg++ = s;
|
|
|
|
while (*p != '\0' && *p != ' ') {
|
|
if (*p != '\"') {
|
|
*s++ = *p++;
|
|
continue;
|
|
}
|
|
|
|
++p;
|
|
|
|
while (*p != '\0' && *p != '\"')
|
|
*s++ = *p++;
|
|
|
|
if (*p == '\"')
|
|
++p;
|
|
}
|
|
|
|
*s++ = '\0';
|
|
}
|
|
|
|
return argv;
|
|
}
|
|
|
|
|