WCSTOK(3) BSD Library Functions Manual WCSTOK(3)

NAME
     wwccssttookk - split wide-character string into tokens

LLIIBBRRAARRYY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##iinncclluuddee <>

     wchart *
     wwccssttookk(wchart * restrict str, const wchart * restrict sep,
         wchart ** restrict last);

DESCRIPTION
     The wwccssttookk() function is used to isolate sequential tokens in a null-ter-
     minated wide character string, str.  These tokens are separated in the
     string by at least one of the characters in sep.  The first time that
     wwccssttookk() is called, str should be specified; subsequent calls, wishing to
     obtain further tokens from the same string, should pass a null pointer
     instead.  The separator string, sep, must be supplied each time, and may
     change between calls.  The context pointer last must be provided on each
     call.

     The wwccssttookk() function is the wide character counterpart of the ssttrrttookkrr()
     function.

RETURN VALUES
     The wwccssttookk() function returns a pointer to the beginning of each subse-
     quent token in the string, after replacing the token itself with a null
     wide character (L'\0').  When no more tokens remain, a null pointer is
     returned.

EEXXAAMMPPLLEESS
     The following code fragment splits a wide character string on ASCII
     space, tab and newline characters and writes the tokens to standard out-
     put:

           const wchart *seps = L" \t\n";
           wchart *last, *tok, text[] = L" \none\ttwo\t\tthree  \n";

           for (tok = wcstok(text, seps, &last); tok != NULL;
               tok = wcstok(NULL, seps, &last))
                   wprintf(L"%ls\n", tok);

CCOOMMPPAATTIIBBIILLIITTYY
     Some early implementations of wwccssttookk() omit the context pointer argument,
     last, and maintain state across calls in a static variable like ssttrrttookk()
     does.

SEE ALSO
     strtok(3), wcschr(3), wcscspn(3), wcspbrk(3), wcsrchr(3), wcsspn(3)

STANDARDS     The wwccssttookk() function conforms to ISO/IEC 9899:1999 (``ISO C99'').

BSD                             October 3, 2002                            BSD