STRSEP
Section: Linux Programmer's Manual (3)
Updated: 2009-01-16
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NAME
strsep - extract token from string
SYNOPSIS
#include <string.h>
char *strsep(char **stringp, const char *delim);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
strsep():
_BSD_SOURCE
DESCRIPTION
If *stringp is NULL, the
strsep()
function returns NULL
and does nothing else.
Otherwise, this function finds the first token
in the string *stringp, where tokens
are delimited by symbols in the string delim.
This token is terminated with a aq\0aq character
(by overwriting the delimiter)
and *stringp is updated to point past the token.
In case no delimiter was found, the token is taken to be
the entire string *stringp, and *stringp is made NULL.
RETURN VALUE
The
strsep()
function returns a pointer to the token,
that is, it returns the original value of *stringp.
CONFORMING TO
4.4BSD.
NOTES
The
strsep()
function was introduced as a replacement for
strtok(3),
since the latter cannot handle empty fields.
However,
strtok(3)
conforms to C89/C99 and hence is more portable.
BUGS
Be cautious when using this function.
If you do use it, note that:
- *
-
This function modifies its first argument.
- *
-
This function cannot be used on constant strings.
- *
-
The identity of the delimiting character is lost.
SEE ALSO
index(3),
memchr(3),
rindex(3),
strchr(3),
strpbrk(3),
strspn(3),
strstr(3),
strtok(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- CONFORMING TO
-
- NOTES
-
- BUGS
-
- SEE ALSO
-
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Time: 16:11:11 GMT, January 25, 2010