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 * Copyright (c) 2003-2006 by Alexander V. Lukyanov (lav@yars.free.net)
 * 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 of the License, 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
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

/* $Id: mb.h,v 1.14 2006/04/12 05:46:05 lav Exp $ */

#ifndef MB_H
#define MB_H

#include <wchar.h>
#include <wctype.h>

extern "C" int wcwidth(wchar_t);

extern bool mb_mode;
extern int  MBCharSize;
extern int  MBCharWidth;
extern bool MBCharInvalid;

bool MBCheckLeftAt(offs o);
bool MBCheckAt(offs o);
wchar_t WCharAt(offs o);
wchar_t WCharLeftAt(offs o);
void InsertWChar(wchar_t ch);
wchar_t WCharAtLC(num,num);
wchar_t getcode_wchar();
wchar_t choose_wch();
void ReplaceWCharExt(wchar_t);
void ReplaceWCharExtMove(wchar_t);
void ReplaceWCharMove(wchar_t);

static inline bool MBCheckRight() { return MBCheckAt(Offset()); }
static inline bool MBCheckLeft()  { return MBCheckLeftAt(Offset()); }
static inline int CharWidthAt(offs o) { MBCheckAt(o); return MBCharWidth; }
static inline int CharSizeAt(offs o)  { MBCheckAt(o); return MBCharSize;  }
static inline int CharSize()  { return CharSizeAt(Offset()); }
static inline int CharWidth() { return CharWidthAt(Offset()); }
static inline int WChar() { return WCharAt(Offset()); }
static inline int WCharLeft() { return WCharLeftAt(Offset()); }

void mb_get_col(const char *buf,int pos,int *col,int len);
void mb_char_left(const char *buf,int *pos,int *col,int len);
void mb_char_right(const char *buf,int *pos,int *col,int len);
int  mb_get_pos_for_col(const char *buf,int width,int len);
int  mb_len(const char *buf,int len);
wchar_t mb_to_wc(const char *buf,int len,int *ch_len,int *ch_width);

# define mb_mode  (false)
# define MBCheckLeft()  (false)
# define MBCheckLeftAt(o) (false)
# define MBCheckAt(o)   (false)
# define MBCharSize     (1)
# define MBCharWidth    (1)
# define MBCharInvalid  (false)
# define MBCheckRight() (false)
# define CharWidthAt(o) (1)
# define CharSizeAt(o)  (1)
# define CharWidth()    (1)
# define CharSize()     (1)
# define WCharAt(o)     CharAt((o))
# define WCharLeftAt(o) CharAt((o)-1)
# define WCharLeft()    CharRel(-1)
# define WChar()  Char()
# define WCharAtLC(l,c) CharAtLC(l,c)
# define getcode_wchar() getcode_char()
# define choose_wch()   choose_ch()
# define InsertWChar(ch) InsertChar(ch)
# define ReplaceWCharExt(c) ReplaceCharExt(c)
# define ReplaceWCharExtMove(c) ReplaceCharExtMove(c)
# define ReplaceWCharMove(c) ReplaceCharMove(c)
# define mb_get_col(buf,pos,col,len)      *(col)=(pos)
# define mb_char_left(buf,pos,col,len)  *(col)=--(*pos)
# define mb_char_right(buf,pos,col,len) *(col)=++(*pos)
# define mb_get_pos_for_col(buf,width,len) (width)
# define mb_len(buf,len) (1)
# define mb_to_wc(buf,len,ch_len,ch_width) (((ch_len)?*(ch_len)=1:0),((ch_width)?*(ch_width)=1:0),*(buf))
# ifndef MB_CUR_MAX
#  define MB_CUR_MAX 1
#  define MB_LEN_MAX 1
# endif


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