strsep(3) [redhat man page]

STRSEP(3)						     Linux Programmer's Manual							 STRSEP(3)

NAME

       strsep - extract token from string

SYNOPSIS

       #include <string.h>

       char *strsep(char **stringp, const char *delim);

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 `' 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.

NOTES

       The strsep() function was introduced as a replacement for strtok(), since the latter cannot handle empty fields.   However,  strtok()  con-
       forms to ANSI-C and hence is more portable.

BUGS

       This function suffers from the same problems as strtok().  In particular, it modifies the original string. Avoid it.

CONFORMING TO

       BSD 4.4

SEE ALSO

       index(3), memchr(3), rindex(3), strchr(3), strpbrk(3), strspn(3), strstr(3), strtok(3)

GNU
								    1993-04-12								 STRSEP(3)

STRSEP(3)						     Linux Programmer's Manual							 STRSEP(3)

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():
	   Since glibc 2.19:
	       _DEFAULT_SOURCE
	   Glibc 2.19 and earlier:
	       _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, that is delimited by one of the bytes in the string delim.  This token is terminated by overwriting the delimiter  with  a
       null  byte  (''),  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.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       +----------+---------------+---------+
       |Interface | Attribute	  | Value   |
       +----------+---------------+---------+
       |strsep()  | Thread safety | MT-Safe |
       +----------+---------------+---------+
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)  con-
       forms 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), string(3), strpbrk(3), strspn(3), strstr(3), strtok(3)

COLOPHON

       This  page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU
								    2016-03-15								 STRSEP(3)