1: /* Charset name normalization.
    2:    Copyright (C) 2001,2002,2003,2004,2005,2007 Free Software Foundation, Inc.
    3:    This file is part of the GNU C Library.
    4:    Contributed by Ulrich Drepper <drepper@cygnus.com>, 2001.
    5: 
    6:    The GNU C Library is free software; you can redistribute it and/or
    7:    modify it under the terms of the GNU Lesser General Public
    8:    License as published by the Free Software Foundation; either
    9:    version 2.1 of the License, or (at your option) any later version.
   10: 
   11:    The GNU C Library is distributed in the hope that it will be useful,
   12:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   13:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   14:    Lesser General Public License for more details.
   15: 
   16:    You should have received a copy of the GNU Lesser General Public
   17:    License along with the GNU C Library; if not, write to the Free
   18:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   19:    02111-1307 USA.  */
   20: 
   21: #include <ctype.h>
   22: #include <locale.h>
   23: 
   24: 
   25: static void
   26: strip (char *wp, const char *s)
   27: {
   28:   int slash_count = 0;
   29: 
   30:   while (*s != '\0')
   31:     {
   32:       if (__isalnum_l (*s, _nl_C_locobj_ptr)
   33:           || *s == '_' || *s == '-' || *s == '.' || *s == ',' || *s == ':')
   34:         *wp++ = __toupper_l (*s, _nl_C_locobj_ptr);
   35:       else if (*s == '/')
   36:         {
   37:           if (++slash_count == 3)
   38:             break;
   39:           *wp++ = '/';
   40:         }
   41:       ++s;
   42:     }
   43: 
   44:   while (slash_count++ < 2)
   45:     *wp++ = '/';
   46: 
   47:   *wp = '\0';
   48: }
   49: 
   50: 
   51: static inline char * __attribute__ ((unused, always_inline))
   52: upstr (char *dst, const char *str)
   53: {
   54:   char *cp = dst;
   55:   while ((*cp++ = __toupper_l (*str++, _nl_C_locobj_ptr)) != '\0')
   56:     /* nothing */;
   57:   return dst;
   58: }