Egor00f
91dc4d8cad
Reviewed-on: #341 Reviewed-by: Max Logaev <maxlogaev@proton.me> Co-authored-by: Egor00f <y.yarin@inbox.ru> Co-committed-by: Egor00f <y.yarin@inbox.ru>
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
|
|
#include <string.h>
|
|
|
|
char* strtok_r(char* s, const char* delim, char** last)
|
|
{
|
|
char *spanp, *tok;
|
|
int c, sc;
|
|
|
|
if (s == NULL && (s = *last) == NULL)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Skip (span) leading delimiters (s += strspn(s, delim), sort of).
|
|
*/
|
|
cont:
|
|
c = *s++;
|
|
for (spanp = (char*)delim; (sc = *spanp++) != 0;) {
|
|
if (c == sc)
|
|
goto cont;
|
|
}
|
|
|
|
if (c == 0) { /* no non-delimiter characters */
|
|
*last = NULL;
|
|
return (NULL);
|
|
}
|
|
tok = s - 1;
|
|
|
|
/*
|
|
* Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
|
|
* Note that delim must have one NUL; we stop if we see that, too.
|
|
*/
|
|
for (;;) {
|
|
c = *s++;
|
|
spanp = (char*)delim;
|
|
do {
|
|
if ((sc = *spanp++) == c) {
|
|
if (c == 0)
|
|
s = NULL;
|
|
else
|
|
s[-1] = '\0';
|
|
*last = s;
|
|
return (tok);
|
|
}
|
|
} while (sc != 0);
|
|
}
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
char *strtok(char *s, const char *delim)
|
|
{
|
|
static char *last;
|
|
|
|
return (strtok_r(s, delim, &last));
|
|
}
|