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/*
FUNCTION
<<strtok>>---get next token from a string
INDEX
strtok
INDEX
strtok_r
ANSI_SYNOPSIS
#include <string.h>
char *strtok(char *<[source]>, const char *<[delimiters]>)
char *strtok_r(char *<[source]>, const char *<[delimiters]>,
char **<[lasts]>)
TRAD_SYNOPSIS
#include <string.h>
char *strtok(<[source]>, <[delimiters]>)
char *<[source]>;
char *<[delimiters]>;
char *strtok_r(<[source]>, <[delimiters]>, <[lasts]>)
char *<[source]>;
char *<[delimiters]>;
char **<[lasts]>;
DESCRIPTION
The <<strtok>> function is used to isolate sequential tokens in a
null-terminated string, <<*<[source]>>>. These tokens are delimited
in the string by at least one of the characters in <<*<[delimiters]>>>.
The first time that <<strtok>> is called, <<*<[source]>>> should be
specified; subsequent calls, wishing to obtain further tokens from
the same string, should pass a null pointer instead. The separator
string, <<*<[delimiters]>>>, must be supplied each time, and may
change between calls.
The <<strtok>> function returns a pointer to the beginning of each
subsequent token in the string, after replacing the separator
character itself with a NUL character. When no more tokens remain,
a null pointer is returned.
The <<strtok_r>> function has the same behavior as <<strtok>>, except
a pointer to placeholder <<*[lasts]>> must be supplied by the caller.
RETURNS
<<strtok>> returns a pointer to the next token, or <<NULL>> if
no more tokens can be found.
NOTES
<<strtok>> is unsafe for multi-thread applications. <<strtok_r>>
is MT-Safe and should be used instead.
PORTABILITY
<<strtok>> is ANSI C.
<<strtok>> requires no supporting OS subroutines.
QUICKREF
strtok ansi impure
*/
#include <string.h>
#include <_ansi.h>
#include <reent.h>
#ifndef _REENT_ONLY
char *
_DEFUN (strtok, (s, delim),
register char *s _AND
register const char *delim)
{
return strtok_r (s, delim, &(_REENT->_new._reent._strtok_last));
}
#endif
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