|
Packit |
8f70b4 |
/* Reentrant string tokenizer. Generic version.
|
|
Packit |
8f70b4 |
Copyright (C) 1991, 1996-1999, 2001, 2004, 2007, 2009-2018 Free Software
|
|
Packit |
8f70b4 |
Foundation, Inc.
|
|
Packit |
8f70b4 |
This file is part of the GNU C Library.
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
This program is free software: you can redistribute it and/or modify
|
|
Packit |
8f70b4 |
it under the terms of the GNU General Public License as published by
|
|
Packit |
8f70b4 |
the Free Software Foundation; either version 3 of the License, or
|
|
Packit |
8f70b4 |
(at your option) any later version.
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
This program is distributed in the hope that it will be useful,
|
|
Packit |
8f70b4 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
8f70b4 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
Packit |
8f70b4 |
GNU General Public License for more details.
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
You should have received a copy of the GNU General Public License
|
|
Packit |
8f70b4 |
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
#ifdef HAVE_CONFIG_H
|
|
Packit |
8f70b4 |
# include <config.h>
|
|
Packit |
8f70b4 |
#endif
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
#include <string.h>
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
#ifdef _LIBC
|
|
Packit |
8f70b4 |
# undef strtok_r
|
|
Packit |
8f70b4 |
# undef __strtok_r
|
|
Packit |
8f70b4 |
#else
|
|
Packit |
8f70b4 |
# define __strtok_r strtok_r
|
|
Packit |
8f70b4 |
# define __rawmemchr strchr
|
|
Packit |
8f70b4 |
#endif
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
/* Parse S into tokens separated by characters in DELIM.
|
|
Packit |
8f70b4 |
If S is NULL, the saved pointer in SAVE_PTR is used as
|
|
Packit |
8f70b4 |
the next starting point. For example:
|
|
Packit |
8f70b4 |
char s[] = "-abc-=-def";
|
|
Packit |
8f70b4 |
char *sp;
|
|
Packit |
8f70b4 |
x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def"
|
|
Packit |
8f70b4 |
x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL
|
|
Packit |
8f70b4 |
x = strtok_r(NULL, "=", &sp); // x = NULL
|
|
Packit |
8f70b4 |
// s = "abc\0-def\0"
|
|
Packit |
8f70b4 |
*/
|
|
Packit |
8f70b4 |
char *
|
|
Packit |
8f70b4 |
__strtok_r (char *s, const char *delim, char **save_ptr)
|
|
Packit |
8f70b4 |
{
|
|
Packit |
8f70b4 |
char *token;
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
if (s == NULL)
|
|
Packit |
8f70b4 |
s = *save_ptr;
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
/* Scan leading delimiters. */
|
|
Packit |
8f70b4 |
s += strspn (s, delim);
|
|
Packit |
8f70b4 |
if (*s == '\0')
|
|
Packit |
8f70b4 |
{
|
|
Packit |
8f70b4 |
*save_ptr = s;
|
|
Packit |
8f70b4 |
return NULL;
|
|
Packit |
8f70b4 |
}
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
/* Find the end of the token. */
|
|
Packit |
8f70b4 |
token = s;
|
|
Packit |
8f70b4 |
s = strpbrk (token, delim);
|
|
Packit |
8f70b4 |
if (s == NULL)
|
|
Packit |
8f70b4 |
/* This token finishes the string. */
|
|
Packit |
8f70b4 |
*save_ptr = __rawmemchr (token, '\0');
|
|
Packit |
8f70b4 |
else
|
|
Packit |
8f70b4 |
{
|
|
Packit |
8f70b4 |
/* Terminate the token and make *SAVE_PTR point past it. */
|
|
Packit |
8f70b4 |
*s = '\0';
|
|
Packit |
8f70b4 |
*save_ptr = s + 1;
|
|
Packit |
8f70b4 |
}
|
|
Packit |
8f70b4 |
return token;
|
|
Packit |
8f70b4 |
}
|
|
Packit |
8f70b4 |
#ifdef weak_alias
|
|
Packit |
8f70b4 |
libc_hidden_def (__strtok_r)
|
|
Packit |
8f70b4 |
weak_alias (__strtok_r, strtok_r)
|
|
Packit |
8f70b4 |
#endif
|