strsep man page on FreeBSD

Man page or keyword search:  
man Server   9747 pages
apropos Keyword Search (all sections)
Output format
FreeBSD logo
[printable version]

STRSEP(3)		 BSD Library Functions Manual		     STRSEP(3)

     strsep — separate strings

     Standard C Library (libc, -lc)

     #include <string.h>

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

     The strsep() function locates, in the string referenced by *stringp, the
     first occurrence of any character in the string delim (or the terminating
     ‘\0’ character) and replaces it with a ‘\0’.  The location of the next
     character after the delimiter character (or NULL, if the end of the
     string was reached) is stored in *stringp.	 The original value of
     *stringp is returned.

     An “empty” field (i.e., a character in the string delim occurs as the
     first character of *stringp) can be detected by comparing the location
     referenced by the returned pointer to ‘\0’.

     If *stringp is initially NULL, strsep() returns NULL.

     The following uses strsep() to parse a string, and prints each token in
     separate line:

	   char *token, *string, *tofree;

	   tofree = string = strdup("abc,def,ghi");
	   assert(string != NULL);

	   while ((token = strsep(&string, ",")) != NULL)
		   printf("%s\n", token);


     The following uses strsep() to parse a string, containing tokens delim‐
     ited by white space, into an argument vector:

	   char **ap, *argv[10], *inputstring;

	   for (ap = argv; (*ap = strsep(&inputstring, " \t")) != NULL;)
		   if (**ap != '\0')
			   if (++ap >= &argv[10])

     memchr(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strspn(3),
     strstr(3), strtok(3)

     The strsep() function is intended as a replacement for the strtok() func‐
     tion.  While the strtok() function should be preferred for portability
     reasons (it conforms to ISO/IEC 9899:1990 (“ISO C90”)) it is unable to
     handle empty fields, i.e., detect fields delimited by two adjacent delim‐
     iter characters, or to be used for more than a single string at a time.
     The strsep() function first appeared in 4.4BSD.

BSD			       December 5, 2008				   BSD

List of man pages available for FreeBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net