diff options
Diffstat (limited to 'khexedit/conversion.cc')
-rw-r--r-- | khexedit/conversion.cc | 395 |
1 files changed, 0 insertions, 395 deletions
diff --git a/khexedit/conversion.cc b/khexedit/conversion.cc deleted file mode 100644 index a0b6195..0000000 --- a/khexedit/conversion.cc +++ /dev/null @@ -1,395 +0,0 @@ -/* - * khexedit - Versatile hex editor - * Copyright (C) 1999 Espen Sand, espensa@online.no - * - * 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 - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - */ - -#include <string.h> - -#include <tdelocale.h> - -#include "conversion.h" - - -CConversion::CConversion( void ) -{ - setMode( cnvDefault ); -} - - -CConversion::EMode CConversion::mode( void ) -{ - return( (EMode)mState.mode ); -} - -const SEncodeState &CConversion::state( void ) -{ - return( mState ); -} - -TQString CConversion::names( unsigned int index ) -{ - static const TQString strings[4] = - { - i18n("Default encoding", "Default"), - i18n("EBCDIC"), - i18n("US-ASCII (7 bit)"), - i18n("Unknown"), - }; - - return( strings[ index > cnvUsAscii ? 3 : index ] ); -} - - -const unsigned char *CConversion::tables( EMode cnvMode ) -{ - /* - static unsigned char ebcdicToLatin1[256] = - { - 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, - 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - 0x10, 0x11, 0x12, 0x13, 0x9D, 0x85, 0x08, 0x87, - 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x0A, 0x17, 0x1B, - 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07, - 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, - 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A, - 0x20, 0xA0, 0xE2, 0xE4, 0xE0, 0xE1, 0xE3, 0xE5, - 0xE7, 0xF1, 0xA2, 0x2E, 0x3C, 0x28, 0x2B, 0x7C, - 0x26, 0xE9, 0xEA, 0xEB, 0xE8, 0xED, 0xEE, 0xEF, - 0xEC, 0xDF, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E, - 0x2D, 0x2F, 0xC2, 0xC4, 0xC0, 0xC1, 0xC3, 0xC5, - 0xC7, 0xD1, 0xA6, 0x2C, 0x25, 0x5F, 0x3E, 0x3F, - 0xF8, 0xC9, 0xCA, 0xCB, 0xC8, 0xCD, 0xCE, 0xCF, - 0xCC, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22, - 0xD8, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, - 0x68, 0x69, 0xAB, 0xBB, 0xF0, 0xFD, 0xFE, 0xB1, - 0xB0, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, - 0x71, 0x72, 0xAA, 0xBA, 0xE6, 0xB8, 0xC6, 0xA4, - 0xB5, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - 0x79, 0x7A, 0xA1, 0xBF, 0xD0, 0x5B, 0xDE, 0xAE, - 0xAC, 0xA3, 0xA5, 0xB7, 0xA9, 0xA7, 0xB6, 0xBC, - 0xBD, 0xBE, 0xDD, 0xA8, 0xAF, 0x5D, 0xB4, 0xD7, - 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, - 0x48, 0x49, 0xAD, 0xF4, 0xF6, 0xF2, 0xF3, 0xF5, - 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, - 0x51, 0x52, 0xB9, 0xFB, 0xFC, 0xF9, 0xFA, 0xFF, - 0x5C, 0xF7, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, - 0x59, 0x5A, 0xB2, 0xD4, 0xD6, 0xD2, 0xD3, 0xD5, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, - 0x38, 0x39, 0xB3, 0xDB, 0xDC, 0xD9, 0xDA, 0x9F - }; - */ - - static unsigned char ebcdicToLatin1[256] = - { - 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, - 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - 0x10, 0x11, 0x12, 0x13, 0x9D, 0x85, 0x08, 0x87, - 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x0A, 0x17, 0x1B, - 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07, - 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, - 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A, - 0x20, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, - 0xA7, 0xA8, 0x5B, 0x2E, 0x3C, 0x28, 0x2B, 0x21, - 0x26, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, - 0xB0, 0xB1, 0x5D, 0x24, 0x2A, 0x29, 0x3B, 0x5E, - 0x2D, 0x2F, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, - 0xB8, 0xB9, 0x7C, 0x2C, 0x25, 0x5F, 0x3E, 0x3F, - 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, 0xC0, 0xC1, - 0xC2, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22, - 0xC3, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, - 0x68, 0x69, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, - 0xCA, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, - 0x71, 0x72, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, - 0xD1, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - 0x79, 0x7A, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, - 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, - 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, - 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, - 0x48, 0x49, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, - 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, - 0x51, 0x52, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, - 0x5C, 0x9F, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, - 0x59, 0x5A, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, - 0x38, 0x39, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF, - }; - - static unsigned char buf[256]; - - - if( cnvMode == cnvEbcdic ) - { - return( ebcdicToLatin1 ); - } - else if( cnvMode == cnvUsAscii ) - { - memset( buf, 0, 256 ); - for( unsigned int i=0; i<127; i++ ) { buf[i] = i; } - return( buf ); - } - else if( cnvMode == cnvDefault ) - { - for( unsigned int i=0; i<256; i++ ) { buf[i] = i; } - return( buf ); - } - else - { - return( 0 ); - } -} - - -void CConversion::setMode( EMode cnvMode ) -{ - const unsigned char *table = tables( cnvMode ); - if( table == 0 ) - { - cnvMode = cnvDefault; - table = tables( cnvMode ); - } - - mState.mode = cnvMode; - mState.name = names( mState.mode ); - memcpy( mData, table, 256 ); -} - - -bool CConversion::lossless( EMode cnvMode ) -{ - const unsigned char *table = tables( cnvMode ); - if( table == 0 ) - { - return( false ); - } - - unsigned char flag[256]; - memset( flag, 0, sizeof( flag ) ); - - for( uint i=0; i<256; i++ ) - { - int index = table[i]; - if( flag[index] != 0 ) - { - return( false ); - } - flag[index] += 1; - } - - return( true ); -} - - - -#if 0 -void CConversion::setMode( EMode cnvMode ) -{ - /* - static unsigned char ebcdicToLatin1[256] = - { - 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, - 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - 0x10, 0x11, 0x12, 0x13, 0x9D, 0x85, 0x08, 0x87, - 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x0A, 0x17, 0x1B, - 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07, - 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, - 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A, - 0x20, 0xA0, 0xE2, 0xE4, 0xE0, 0xE1, 0xE3, 0xE5, - 0xE7, 0xF1, 0xA2, 0x2E, 0x3C, 0x28, 0x2B, 0x7C, - 0x26, 0xE9, 0xEA, 0xEB, 0xE8, 0xED, 0xEE, 0xEF, - 0xEC, 0xDF, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E, - 0x2D, 0x2F, 0xC2, 0xC4, 0xC0, 0xC1, 0xC3, 0xC5, - 0xC7, 0xD1, 0xA6, 0x2C, 0x25, 0x5F, 0x3E, 0x3F, - 0xF8, 0xC9, 0xCA, 0xCB, 0xC8, 0xCD, 0xCE, 0xCF, - 0xCC, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22, - 0xD8, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, - 0x68, 0x69, 0xAB, 0xBB, 0xF0, 0xFD, 0xFE, 0xB1, - 0xB0, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, - 0x71, 0x72, 0xAA, 0xBA, 0xE6, 0xB8, 0xC6, 0xA4, - 0xB5, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - 0x79, 0x7A, 0xA1, 0xBF, 0xD0, 0x5B, 0xDE, 0xAE, - 0xAC, 0xA3, 0xA5, 0xB7, 0xA9, 0xA7, 0xB6, 0xBC, - 0xBD, 0xBE, 0xDD, 0xA8, 0xAF, 0x5D, 0xB4, 0xD7, - 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, - 0x48, 0x49, 0xAD, 0xF4, 0xF6, 0xF2, 0xF3, 0xF5, - 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, - 0x51, 0x52, 0xB9, 0xFB, 0xFC, 0xF9, 0xFA, 0xFF, - 0x5C, 0xF7, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, - 0x59, 0x5A, 0xB2, 0xD4, 0xD6, 0xD2, 0xD3, 0xD5, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, - 0x38, 0x39, 0xB3, 0xDB, 0xDC, 0xD9, 0xDA, 0x9F - }; - */ - - static unsigned char ebcdicToLatin1[256] = - { - 0x00, 0x01, 0x02, 0x03, 0x9C, 0x09, 0x86, 0x7F, - 0x97, 0x8D, 0x8E, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - 0x10, 0x11, 0x12, 0x13, 0x9D, 0x85, 0x08, 0x87, - 0x18, 0x19, 0x92, 0x8F, 0x1C, 0x1D, 0x1E, 0x1F, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x0A, 0x17, 0x1B, - 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x05, 0x06, 0x07, - 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, - 0x98, 0x99, 0x9A, 0x9B, 0x14, 0x15, 0x9E, 0x1A, - 0x20, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, - 0xA7, 0xA8, 0x5B, 0x2E, 0x3C, 0x28, 0x2B, 0x21, - 0x26, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, - 0xB0, 0xB1, 0x5D, 0x24, 0x2A, 0x29, 0x3B, 0x5E, - 0x2D, 0x2F, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, - 0xB8, 0xB9, 0x7C, 0x2C, 0x25, 0x5F, 0x3E, 0x3F, - 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, 0xC0, 0xC1, - 0xC2, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22, - 0xC3, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, - 0x68, 0x69, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, - 0xCA, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, - 0x71, 0x72, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, - 0xD1, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - 0x79, 0x7A, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, - 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, - 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, - 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, - 0x48, 0x49, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, - 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, - 0x51, 0x52, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, - 0x5C, 0x9F, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, - 0x59, 0x5A, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, - 0x38, 0x39, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF, - }; - - - if( cnvMode == cnvEbcdic ) - { - memcpy( mData, ebcdicToLatin1, 256 ); - } - else if( cnvMode == cnvUsAscii ) - { - memset( mData, 0, 256 ); - for( unsigned int i=0; i<127; i++ ) { mData[i] = i; } - } - else - { - for( unsigned int i=0; i<256; i++ ) { mData[i] = i; } - cnvMode = cnvDefault; - } - - mState.mode = cnvMode; - mState.name = names( mState.mode ); -} -#endif - - - - -int CConversion::convert( TQByteArray &buf, EMode newMode, CProgress &p ) -{ - if( newMode == mode() ) - { - p.finish(); - return( Err_Success ); - } - - if( buf.isEmpty() ) - { - p.finish(); - setMode( newMode ); - return( Err_Success ); - } - - // - // Make backup - // - const TQByteArray tmp( buf.copy() ); - if( tmp.isEmpty() ) - { - p.finish(); - return( Err_NoMemory ); - } - - unsigned char rev[256]; - uint i, sum; - - sum = 0; - - const float total = buf.size() * 2.0; - - // - // Prepare reverse buffer. - // - for( i=0; i < 256; i++ ) - { - rev[(unsigned char)mData[i]] = i; - } - - // - // Normalize - // - for( i=0; i<buf.size(); i++, sum++ ) - { - buf[i] = rev[ (unsigned char)buf[i] ]; - - // - // The expired() function introduces too much overhead in this case - // so it is only executed every 100'th character - // - if( i % 100 == 0 && p.expired() == true ) - { - const int errCode = p.step( (float)sum/ total ); - if( errCode == Err_Stop ) - { - buf = tmp; - p.finish(); - return( Err_OperationAborted ); - } - } - } - - EMode origMode = mode(); - setMode( newMode ); - - // - // Apply new encoding. - // - for( uint i=0; i<buf.size(); i++, sum++ ) - { - buf[i] = mData[ (unsigned char)buf[i] ]; - - // - // The expired() function introduces too much overhead in this case - // so it is only executed every 100'th character - // - if( i % 100 == 0 && p.expired() == true ) - { - const int errCode = p.step( (float)sum/ total ); - if( errCode == Err_Stop ) - { - buf = tmp; - setMode( origMode ); - p.finish(); - return( Err_OperationAborted ); - } - } - } - - p.finish(); - return( Err_Success ); -} - - |