+
−/* Split a wide string into tokens.
+
−   Copyright (C) 1999, 2011-2012 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 <http://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;
+
−}