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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "WCSTOK" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" wcstok 
+.SH NAME
+wcstok \- split a wide-character string into tokens
+.SH SYNOPSIS
+.LP
+\fB#include <wchar.h>
+.br
+.sp
+wchar_t *wcstok(wchar_t *restrict\fP \fIws1\fP\fB, const wchar_t *restrict\fP
+\fIws2\fP\fB,
+.br
+\ \ \ \ \ \  wchar_t **restrict\fP \fIptr\fP\fB);
+.br
+\fP
+.SH DESCRIPTION
+.LP
+A sequence of calls to \fIwcstok\fP() shall break the wide-character
+string pointed to by \fIws1\fP into a sequence of tokens,
+each of which shall be delimited by a wide-character code from the
+wide-character string pointed to by \fIws2\fP. The \fIptr\fP
+argument points to a caller-provided \fBwchar_t\fP pointer into which
+the \fIwcstok\fP() function shall store information
+necessary for it to continue scanning the same wide-character string.
+.LP
+The first call in the sequence has \fIws1\fP as its first argument,
+and is followed by calls with a null pointer as their first
+argument. The separator string pointed to by \fIws2\fP may be different
+from call to call.
+.LP
+The first call in the sequence shall search the wide-character string
+pointed to by \fIws1\fP for the first wide-character code
+that is \fInot\fP contained in the current separator string pointed
+to by \fIws2\fP. If no such wide-character code is found,
+then there are no tokens in the wide-character string pointed to by
+\fIws1\fP and \fIwcstok\fP() shall return a null pointer. If
+such a wide-character code is found, it shall be the start of the
+first token.
+.LP
+The \fIwcstok\fP() function shall then search from there for a wide-character
+code that \fIis\fP contained in the current
+separator string. If no such wide-character code is found, the current
+token extends to the end of the wide-character string
+pointed to by \fIws1\fP, and subsequent searches for a token shall
+return a null pointer. If such a wide-character code is found,
+it shall be overwritten by a null wide character, which terminates
+the current token. The \fIwcstok\fP() function shall save a
+pointer to the following wide-character code, from which the next
+search for a token shall start.
+.LP
+Each subsequent call, with a null pointer as the value of the first
+argument, shall start searching from the saved pointer and
+behave as described above.
+.LP
+The implementation shall behave as if no function calls \fIwcstok\fP().
+.SH RETURN VALUE
+.LP
+Upon successful completion, the \fIwcstok\fP() function shall return
+a pointer to the first wide-character code of a token.
+Otherwise, if there is no token, \fIwcstok\fP() shall return a null
+pointer.
+.SH ERRORS
+.LP
+No errors are defined.
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+None.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+The Base Definitions volume of IEEE\ Std\ 1003.1-2001, \fI<wchar.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .