WCSTOK (3)
split wide-character string into tokens
SYNOPSIS
#include <wchar.h>
wchar_t *wcstok (wchar_t * wcs , const wchar_t * delim , wchar_t ** ptr );
DESCRIPTION
The wcstok function is the wide-character equivalent of the strtok
function, with an added argument to make it multithread-safe. It can be used
to split a wide-character string wcs into tokens, where a token is
defined as a substring not containing any wide-characters from delim.
The search starts at wcs, if wcs is not NULL, or at *ptr, if
wcs is NULL. First, any delimiter wide-characters are skipped, i.e. the
pointer is advanced beyond any wide-characters which occur in delim.
If the end of the wide-character string is now reached, wcstok returns
NULL, to indicate that no tokens were found, and stores an appropriate value
in *ptr, so that subsequent calls to wcstok will continue to return
NULL. Otherwise, the wcstok function recognizes the beginning of a token
and returns a pointer to it, but before doing that, it zero-terminates the
token by replacing the next wide-character which occurs in delim with
a L'\\0' character, and it updates *ptr so that subsequent calls will
continue searching after the end of recognized token.
RETURN VALUE
The wcstok function returns a pointer to the next token, or NULL if no
further token was found.
NOTES
The original wcs wide-character string is destructively modified during
the operation.
EXAMPLE
The following code loops over the tokens contained in a wide-character string.
wchar_t *wcs = ...;
wchar_t *token;
wchar_t *state;
for (token = wcstok(wcs, " \\t\\n", &state);
token != NULL;
token = wcstok(NULL, " \\t\\n", &state)) {
...
}
CONFORMING TO
SEE ALSO
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