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/* UTF-8 support prototypes.

      Copyright (C) 1993-1998 Sebastiano Vigna 
      Copyright (C) 1999-2004 Todd M. Lewis and Sebastiano Vigna

      This file is part of ne, the nice editor.

      This program is free software; you can redistribute it and/or modify it
      under the terms of the GNU General Public License as published by the
      Free Software Foundation; either version 2, or (at your option) any
      later version.
      This program is distributed in the hope that it will be useful, but
      WITHOUT ANY WARRANTY; without even the implied warranty of
      General Public License for more details.
      You should have received a copy of the GNU General Public License along
      with this program; see the file COPYING.  If not, write to the Free
      Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
      02111-1307, USA.  */

int utf8char(const unsigned char *s);
int utf8strlen(const unsigned char *s, int len);
int utf8seqlen(int c);
int utf8str(int c, unsigned char *  s);
int utf8tolower(int c);
int utf8toupper(int c);

/* Computes the length of an UTF-8 sequence, given the first byte. If the byte
      is not a legal sequence start, this function returns -1. */

#define utf8len(c) \
      (((unsigned char)(c)) < 0x80 ?  1 : \
       ((unsigned char)(c)) < 0xC0 ? -1 : \
       ((unsigned char)(c)) < 0xE0 ?  2 : \
       ((unsigned char)(c)) < 0xF0 ?  3 : \
       ((unsigned char)(c)) < 0xF8 ?  4 : \
       ((unsigned char)(c)) < 0xFC ?  5 : 6)

#ifdef NOWCHAR
#define wcwidth(x) (1)
#include <wchar.h>

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