* Makefile (subdirs): Added wcsmbs.

* wcsmbs: New directory of wide char/multibyte char functions from
	drepper.

wcsmbs/wcstok.c

@@ -0,0 +1,67 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.	 If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <wcstr.h>
+#include <errno.h>
+
+
+static wchar_t *olds = NULL;
+
+/* Parse WCS into tokens separated by characters in DELIM.
+   If WCS is NULL, the last string wcstok() was called with is
+   used.  */
+wchar_t *
+wcstok (wcs, delim)
+    register wchar_t *wcs;
+    register const wchar_t *delim;
+{
+  wchar_t *token;
+
+  if (wcs == NULL)
+    {
+      if (olds == NULL)
+	{
+	  errno = EINVAL;
+	  return NULL;
+	}
+      else
+	wcs = olds;
+    }
+
+  /* Scan leading delimiters.  */
+  wcs += wcsspn (wcs, delim);
+  if (*wcs == L'\0')
+    {
+      olds = NULL;
+      return NULL;
+    }
+
+  /* Find the end of the token.	 */
+  token = wcs;
+  wcs = wcspbrk (token, delim);
+  if (wcs == NULL)
+    /* This token finishes the string.	*/
+    olds = NULL;
+  else
+    {
+      /* Terminate the token and make OLDS point past it.  */
+      *wcs = L'\0';
+      olds = wcs + 1;
+    }
+  return token;
+}