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/* Charset name normalization.
   Copyright (C) 2001 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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */
 
#include <ctype.h>
#include <locale.h>
 
 
static inline void
strip (char *wp, const char *s)
{
  int slash_count = 0;
  char old_locale[20], *old_locale_p;
 
  /* Set locale to default C locale. */
  old_locale_p = setlocale(LC_ALL, "C");
  strncpy(old_locale, old_locale_p, 20);
  while (*s != '\0')
    {
      if (isalnum (*s)
	  || *s == '_' || *s == '-' || *s == '.')
	*wp++ = toupper (*s);
      else if (*s == '/')
	{
	  if (++slash_count == 3)
	    break;
	  *wp++ = '/';
	}
      ++s;
    }
 
  while (slash_count++ < 2)
    *wp++ = '/';
 
  *wp = '\0';
  setlocale(LC_ALL, old_locale);
}
 
 
static char * __attribute__ ((unused))
upstr (char *dst, const char *str)
{
  char *cp = dst;
  char old_locale[20], *old_locale_p;
  /* Set locale to default C locale. */
  old_locale_p = setlocale(LC_ALL, "C");
  strncpy(old_locale, old_locale_p, 20);
  while ((*cp++ = toupper (*str++)) != '\0')
    /* nothing */;
  setlocale(LC_ALL, old_locale);
  return dst;
}
 
 
/* If NAME is an codeset alias expand it.  */
extern int __gconv_compare_alias (const char *name1, const char *name2)
     internal_function;