iconv/gconv_charset.h

   1 /* Charset name normalization.
   2    Copyright (C) 2001 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 Library General Public License as
   8    published by the Free Software Foundation; either version 2 of the
   9    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    Library General Public License for more details.
  15
  16    You should have received a copy of the GNU Library General Public
  17    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  18    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include <ctype.h>
  22
  23
  24 static inline void
  25 strip (char *wp, const char *s)
  26 {
  27   int slash_count = 0;
  28
  29   while (*s != '\0')
  30     {
  31       if (isalnum (*s) || *s == '_' || *s == '-' || *s == '.')
  32         *wp++ = toupper (*s);
  33       else if (*s == '/')
  34         {
  35           if (++slash_count == 3)
  36             break;
  37           *wp++ = '/';
  38         }
  39       ++s;
  40     }
  41
  42   while (slash_count++ < 2)
  43     *wp++ = '/';
  44
  45   *wp = '\0';
  46 }
  47
  48
  49 static char *
  50 upstr (char *dst, const char *str)
  51 {
  52   char *cp = dst;
  53   while ((*cp++ = toupper (*str++)) != '\0')
  54     /* nothing */;
  55   return dst;
  56 }
  57
  58
  59 /* If NAME is an codeset alias expand it.  */
  60 extern const char *__gconv_lookup_alias (const char *name);