strsep
Syntax
#include <string.h>

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

Description
This function retrieves the next token from the given string, where stringp points to a variable holding, initially, the start of the string. Tokens are delimited by a character from delim. Each time the function is called, it returns a pointer to the next token, and sets *stringp to the next spot to check, or NULL.

Return Value
The next token, or NULL.

Portability
not ANSI, not POSIX

Example
main()
{
char *buf = "Hello there,stranger";
char **bp = &buf;
char *tok;
while (tok = strsep(bp, " ,"))
printf("tok = `%s'\n", tok);
}

tok = `Hello'
tok = `'
tok = `there'
tok = `stranger'