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WCSTOK(3) Library Functions Manual WCSTOK(3) NAME wcstok - split wide-character string into tokens LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <wchar.h> wchar_t * wcstok(wchar_t * restrict str, const wchar_t * restrict sep, wchar_t ** restrict last); DESCRIPTION The wcstok() function is used to isolate sequential tokens in a nul- terminated wide-character string, str. These tokens are separated in the string by at least one of the characters in sep. The first time that wcstok() 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 wcstok() function is the wide-character counterpart of the strtok_r() function. RETURN VALUES The wcstok() function returns a pointer to the beginning of each subsequent token in the string, after replacing the token itself with a nul wide character (L'\0'). When no more tokens remain, a null pointer is returned. EXAMPLES The following code fragment splits a wide-character string on ASCII space, tab and newline characters and writes the tokens to standard output: const wchar_t *seps = L" \t\n"; wchar_t *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); SEE ALSO strtok(3), wcschr(3), wcscspn(3), wcspbrk(3), wcsrchr(3), wcsspn(3) STANDARDS The wcstok() function conforms to ISO/IEC 9899:1999 ("ISO C99"). Some early implementations of wcstok() omit the context pointer argument, last, and maintain state across calls in a static variable like strtok(3) does. NetBSD 8.0 October 3, 2002 NetBSD 8.0