/* Charset name normalization.

   Copyright (C) 2001-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 2001.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <ctype.h>

#include <locale.h>

static void

strip (char *wp, const char *s)

{

  int slash_count = 0;

  while (*s != '\0')

    {

      if (__isalnum_l (*s, _nl_C_locobj_ptr)

	  || *s == '_' || *s == '-' || *s == '.' || *s == ',' || *s == ':')

	*wp++ = __toupper_l (*s, _nl_C_locobj_ptr);

      else if (*s == '/')

	{

	  if (++slash_count == 3)

	    break;

	  *wp++ = '/';

	}

      ++s;

    }

  while (slash_count++ < 2)

    *wp++ = '/';

  *wp = '\0';

}

static inline char * __attribute__ ((unused, always_inline))

upstr (char *dst, const char *str)

{

  char *cp = dst;

  while ((*cp++ = __toupper_l (*str++, _nl_C_locobj_ptr)) != '\0')

    /* nothing */;

  return dst;

}