// -*-C++-*- 

/*  src/KOI8RConverter.cpp  */

/*
 * Author: Philogelos A. <Philogelos@yahoo.com>
 * Maintainer: Philogelos A.
 * Keywords: C++, library, containers
 *
 * Copyright (C) 1998 Philogelos A.
 *
 * This file is part of Quercus Robusta.
 *
 * Quercus Robusta is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Library General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this software; see the file COPYING.LIB.  If not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 */



/* $Id: KOI8RConverter.cpp,v 1.3 1999/05/22 13:00:29 philogelos Exp $ */
#if !defined(_INLINE)
static char cvsid[] = "@(#)$Id: KOI8RConverter.cpp,v 1.3 1999/05/22 13:00:29 philogelos Exp $";
static char debugFileId[] = __FILE__;
#endif


#include "KOI8RConverter.hpp"
#include "String.hpp"
#include "OGuard.hpp"
#include "Debug.hpp"
#include "UCSChar.hpp"

/* Taken from linux/fs/nls_koi8-r.c (LINUX kernel sources) */
static UnicodeData CharsetToUnicode[256] = {
  /* 0x00*/
  {0x00, 0x00}, {0x01, 0x00}, {0x02, 0x00}, {0x03, 0x00},
  {0x04, 0x00}, {0x05, 0x00}, {0x06, 0x00}, {0x07, 0x00},
  {0x08, 0x00}, {0x09, 0x00}, {0x0a, 0x00}, {0x0b, 0x00},
  {0x0c, 0x00}, {0x0d, 0x00}, {0x0e, 0x00}, {0x0f, 0x00},
  /* 0x10*/
  {0x10, 0x00}, {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00},
  {0x14, 0x00}, {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00},
  {0x18, 0x00}, {0x19, 0x00}, {0x1a, 0x00}, {0x1b, 0x00},
  {0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00}, {0x1f, 0x00},
  /* 0x20*/
  {0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00},
  {0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00},
  {0x28, 0x00}, {0x29, 0x00}, {0x2a, 0x00}, {0x2b, 0x00},
  {0x2c, 0x00}, {0x2d, 0x00}, {0x2e, 0x00}, {0x2f, 0x00},
  /* 0x30*/
  {0x30, 0x00}, {0x31, 0x00}, {0x32, 0x00}, {0x33, 0x00},
  {0x34, 0x00}, {0x35, 0x00}, {0x36, 0x00}, {0x37, 0x00},
  {0x38, 0x00}, {0x39, 0x00}, {0x3a, 0x00}, {0x3b, 0x00},
  {0x3c, 0x00}, {0x3d, 0x00}, {0x3e, 0x00}, {0x3f, 0x00},
  /* 0x40*/
  {0x40, 0x00}, {0x41, 0x00}, {0x42, 0x00}, {0x43, 0x00},
  {0x44, 0x00}, {0x45, 0x00}, {0x46, 0x00}, {0x47, 0x00},
  {0x48, 0x00}, {0x49, 0x00}, {0x4a, 0x00}, {0x4b, 0x00},
  {0x4c, 0x00}, {0x4d, 0x00}, {0x4e, 0x00}, {0x4f, 0x00},
  /* 0x50*/
  {0x50, 0x00}, {0x51, 0x00}, {0x52, 0x00}, {0x53, 0x00},
  {0x54, 0x00}, {0x55, 0x00}, {0x56, 0x00}, {0x57, 0x00},
  {0x58, 0x00}, {0x59, 0x00}, {0x5a, 0x00}, {0x5b, 0x00},
  {0x5c, 0x00}, {0x5d, 0x00}, {0x5e, 0x00}, {0x5f, 0x00},
  /* 0x60*/
  {0x60, 0x00}, {0x61, 0x00}, {0x62, 0x00}, {0x63, 0x00},
  {0x64, 0x00}, {0x65, 0x00}, {0x66, 0x00}, {0x67, 0x00},
  {0x68, 0x00}, {0x69, 0x00}, {0x6a, 0x00}, {0x6b, 0x00},
  {0x6c, 0x00}, {0x6d, 0x00}, {0x6e, 0x00}, {0x6f, 0x00},
  /* 0x70*/
  {0x70, 0x00}, {0x71, 0x00}, {0x72, 0x00}, {0x73, 0x00},
  {0x74, 0x00}, {0x75, 0x00}, {0x76, 0x00}, {0x77, 0x00},
  {0x78, 0x00}, {0x79, 0x00}, {0x7a, 0x00}, {0x7b, 0x00},
  {0x7c, 0x00}, {0x7d, 0x00}, {0x7e, 0x00}, {0x7f, 0x00},
  /* 0x80*/
  {0x00, 0x25}, {0x02, 0x25}, {0x0c, 0x25}, {0x10, 0x25},
  {0x14, 0x25}, {0x18, 0x25}, {0x1c, 0x25}, {0x24, 0x25},
  {0x2c, 0x25}, {0x34, 0x25}, {0x3c, 0x25}, {0x80, 0x25},
  {0x84, 0x25}, {0x88, 0x25}, {0x8c, 0x25}, {0x90, 0x25},
  /* 0x90*/
  {0x91, 0x25}, {0x92, 0x25}, {0x93, 0x25}, {0x20, 0x23},
  {0xa0, 0x25}, {0x19, 0x22}, {0x1a, 0x22}, {0x48, 0x22},
  {0x64, 0x22}, {0x65, 0x22}, {0xa0, 0x00}, {0x21, 0x23},
  {0xb0, 0x00}, {0xb2, 0x00}, {0xb7, 0x00}, {0xf7, 0x00},
  /* 0xa0*/
  {0x50, 0x25}, {0x51, 0x25}, {0x52, 0x25}, {0x51, 0x04},
  {0x53, 0x25}, {0x54, 0x25}, {0x55, 0x25}, {0x56, 0x25},
  {0x57, 0x25}, {0x58, 0x25}, {0x59, 0x25}, {0x5a, 0x25},
  {0x5b, 0x25}, {0x5c, 0x25}, {0x5d, 0x25}, {0x5e, 0x25},
  /* 0xb0*/
  {0x5f, 0x25}, {0x60, 0x25}, {0x61, 0x25}, {0x01, 0x04},
  {0x62, 0x25}, {0x63, 0x25}, {0x64, 0x25}, {0x65, 0x25},
  {0x66, 0x25}, {0x67, 0x25}, {0x68, 0x25}, {0x69, 0x25},
  {0x6a, 0x25}, {0x6b, 0x25}, {0x6c, 0x25}, {0xa9, 0x00},
  /* 0xc0*/
  {0x4e, 0x04}, {0x30, 0x04}, {0x31, 0x04}, {0x46, 0x04},
  {0x34, 0x04}, {0x35, 0x04}, {0x44, 0x04}, {0x33, 0x04},
  {0x45, 0x04}, {0x38, 0x04}, {0x39, 0x04}, {0x3a, 0x04},
  {0x3b, 0x04}, {0x3c, 0x04}, {0x3d, 0x04}, {0x3e, 0x04},
  /* 0xd0*/
  {0x3f, 0x04}, {0x4f, 0x04}, {0x40, 0x04}, {0x41, 0x04},
  {0x42, 0x04}, {0x43, 0x04}, {0x36, 0x04}, {0x32, 0x04},
  {0x4c, 0x04}, {0x4b, 0x04}, {0x37, 0x04}, {0x48, 0x04},
  {0x4d, 0x04}, {0x49, 0x04}, {0x47, 0x04}, {0x4a, 0x04},
  /* 0xe0*/
  {0x2e, 0x04}, {0x10, 0x04}, {0x11, 0x04}, {0x26, 0x04},
  {0x14, 0x04}, {0x15, 0x04}, {0x24, 0x04}, {0x13, 0x04},
  {0x25, 0x04}, {0x18, 0x04}, {0x19, 0x04}, {0x1a, 0x04},
  {0x1b, 0x04}, {0x1c, 0x04}, {0x1d, 0x04}, {0x1e, 0x04},
  /* 0xf0*/
  {0x1f, 0x04}, {0x2f, 0x04}, {0x20, 0x04}, {0x21, 0x04},
  {0x22, 0x04}, {0x23, 0x04}, {0x16, 0x04}, {0x12, 0x04},
  {0x2c, 0x04}, {0x2b, 0x04}, {0x17, 0x04}, {0x28, 0x04},
  {0x2d, 0x04}, {0x29, 0x04}, {0x27, 0x04}, {0x2a, 0x04},
};

static unsigned char page00[256] = {
  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
  0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
  0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
  0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
  0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
  0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
  0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
  0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
  0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
  0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
  0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
  0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
  0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */

  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
  0x9a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
  0x00, 0xbf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
  0x9c, 0x00, 0x9d, 0x00, 0x00, 0x00, 0x00, 0x9e, /* 0xb0-0xb7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9f, /* 0xf0-0xf7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
};

static unsigned char page04[256] = {
  0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
  0xe1, 0xe2, 0xf7, 0xe7, 0xe4, 0xe5, 0xf6, 0xfa, /* 0x10-0x17 */
  0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, /* 0x18-0x1f */
  0xf2, 0xf3, 0xf4, 0xf5, 0xe6, 0xe8, 0xe3, 0xfe, /* 0x20-0x27 */
  0xfb, 0xfd, 0xff, 0xf9, 0xf8, 0xfc, 0xe0, 0xf1, /* 0x28-0x2f */
  0xc1, 0xc2, 0xd7, 0xc7, 0xc4, 0xc5, 0xd6, 0xda, /* 0x30-0x37 */
  0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, /* 0x38-0x3f */
  0xd2, 0xd3, 0xd4, 0xd5, 0xc6, 0xc8, 0xc3, 0xde, /* 0x40-0x47 */
  0xdb, 0xdd, 0xdf, 0xd9, 0xd8, 0xdc, 0xc0, 0xd1, /* 0x48-0x4f */
  0x00, 0xa3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */

  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
};

static unsigned char page22[256] = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
  0x00, 0x95, 0x96, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
  0x97, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
  0x00, 0x00, 0x00, 0x00, 0x98, 0x99, 0x00, 0x00, /* 0x60-0x67 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */

  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
};

static unsigned char page23[256] = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
  0x93, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */

  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
};

static unsigned char page25[256] = {
  0x80, 0x00, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
  0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00, 0x00, /* 0x08-0x0f */
  0x83, 0x00, 0x00, 0x00, 0x84, 0x00, 0x00, 0x00, /* 0x10-0x17 */
  0x85, 0x00, 0x00, 0x00, 0x86, 0x00, 0x00, 0x00, /* 0x18-0x1f */
  0x00, 0x00, 0x00, 0x00, 0x87, 0x00, 0x00, 0x00, /* 0x20-0x27 */
  0x00, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, /* 0x28-0x2f */
  0x00, 0x00, 0x00, 0x00, 0x89, 0x00, 0x00, 0x00, /* 0x30-0x37 */
  0x00, 0x00, 0x00, 0x00, 0x8a, 0x00, 0x00, 0x00, /* 0x38-0x3f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
  0xa0, 0xa1, 0xa2, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, /* 0x50-0x57 */
  0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, /* 0x58-0x5f */
  0xb1, 0xb2, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, /* 0x60-0x67 */
  0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0x00, 0x00, 0x00, /* 0x68-0x6f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */

  0x8b, 0x00, 0x00, 0x00, 0x8c, 0x00, 0x00, 0x00, /* 0x80-0x87 */
  0x8d, 0x00, 0x00, 0x00, 0x8e, 0x00, 0x00, 0x00, /* 0x88-0x8f */
  0x8f, 0x90, 0x91, 0x92, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
  0x94, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
};

static unsigned char *KOI8RPages[ 40 ] = {
	page00, UNULL,   UNULL,   UNULL,   page04, UNULL,   UNULL,   UNULL,   
	UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   
	UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   
	UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   UNULL,   
	UNULL,   UNULL,   page22, page23, UNULL,   page25, UNULL,   UNULL
};

KOI8RConverter::KOI8RConverter()
{}

KOI8RConverter::~KOI8RConverter()
{}

unichar KOI8RConverter::fromBits( const char *const aSource, Index *aBytesRead )
{
  *aBytesRead = 1;
//   Debug::getLogger() -> log( "source: %c (%x), page: %x, offset: %x",
// 							 ( void * )aSource[ 0 ], ( void * )( unsigned char )aSource[ 0 ],
// 							 ( void * )CharsetToUnicode[ ( unsigned char )aSource[ 0 ] ].page,
// 							 ( void * )CharsetToUnicode[ ( unsigned char )aSource[ 0 ] ].offset );
  return CharsetToUnicode[ ( unsigned char )aSource[ 0 ] ].offset +
	( CharsetToUnicode[ ( unsigned char )aSource[ 0 ] ].page << 8 );
}

char *KOI8RConverter::toBits( const unichar aChar, 
							  char * anArena,
							  Index *aBytesWritten )
{
  unsigned char page;
  unsigned char offset;
  char *arena;

  page = ( aChar >> 8 ) & 0xff;
  offset = aChar & 0xff;

  test_( page < sizeof KOI8RPages );
  if( anArena == NIL )
	{
	  arena = new char[ 2 ];
	}
  else
	{
	  arena = anArena;
	}
  test_( KOI8RPages[ page ] != ( unsigned char * ) NIL );
  test_( KOI8RPages[ page ][ offset ] != ( char ) 0 );
  arena[ 0 ] = KOI8RPages[ page ][ offset ];
  *aBytesWritten = 1;
  return arena;
}

boolean KOI8RConverter::equals( const Top *anOther ) const
{
  return( DCAST( anOther, KOI8RConverter ) != ( KOI8RConverter * ) NIL );
}

Top *KOI8RConverter::clone() const
{
  return new KOI8RConverter();
}

String  KOI8RConverter::getClassName() const
{
  return "KOI8RConverter";
}


KOI8RConverter *KOI8RConverter::getDefaultKOI8RConverter()
{
  if( instance == ( KOI8RConverter * ) NIL )
	{
	  instance = new KOI8RConverter();
	  instance -> dontManage();
	}
  return instance;
}

KOI8RConverter *KOI8RConverter::instance = ( KOI8RConverter * ) NIL;

#if defined(_INLINE)
#include "../src/Debug.ipp"
#endif


#if defined(_INLINE)
#include "../src/String.ipp"
#endif

/* $Log: KOI8RConverter.cpp,v $
 * Revision 1.3  1999/05/22 13:00:29  philogelos
 * Merging sources back from SPARC
 *
 * Revision 1.2  1999/03/03 19:09:26  philogelos
 * Put sources under GNU Library License
 *
 * Revision 1.1  1999/02/28 15:47:51  philogelos
 * Added
 * */