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 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 inline 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)
  33           || *s == '_' || *s == '-' || *s == '.')
  34         *wp++ = __toupper_l (*s, &_nl_C_locobj);
  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 char * __attribute__ ((unused))
  52 upstr (char *dst, const char *str)
  53 {
  54   char *cp = dst;
  55   while ((*cp++ = __toupper_l (*str++, &_nl_C_locobj)) != '\0')
  56     /* nothing */;
  57   return dst;
  58 }
  59
  60
  61 /* If NAME is an codeset alias expand it.  */
  62 extern int __gconv_compare_alias (const char *name1, const char *name2)
  63      internal_function;