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/* Split a wide string into tokens.
Copyright (C) 1999, 2011-2021 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 1999.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
wchar_t *
wcstok (wchar_t *wcs, const wchar_t *delim, wchar_t **ptr)
{
if (wcs == NULL)
{
wcs = *ptr;
if (wcs == NULL)
return NULL; /* reminder that end of token sequence has been reached */
}
/* Skip leading delimiters. */
wcs += wcsspn (wcs, delim);
/* Found a token? */
if (*wcs == (wchar_t)'\0')
{
*ptr = NULL;
return NULL;
}
/* Move past the token. */
{
wchar_t *token_end = wcspbrk (wcs, delim);
if (token_end)
{
/* NUL-terminate the token. */
*token_end = (wchar_t)'\0';
*ptr = token_end + 1;
}
else
*ptr = NULL;
}
return wcs;
}
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