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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit2bda8f7717adf28da4af0d34fb82f63d2868c31d (patch)
tree8d927b7b47a90c4adb646482a52613f58acd6f8c /khexedit/conversion.cc
downloadtdeutils-2bda8f7717adf28da4af0d34fb82f63d2868c31d.tar.gz
tdeutils-2bda8f7717adf28da4af0d34fb82f63d2868c31d.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeutils@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'khexedit/conversion.cc')
-rw-r--r--khexedit/conversion.cc395
1 files changed, 395 insertions, 0 deletions
diff --git a/khexedit/conversion.cc b/khexedit/conversion.cc
new file mode 100644
index 0000000..7a5c25c
--- /dev/null
+++ b/khexedit/conversion.cc
@@ -0,0 +1,395 @@
+/*
+ * 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 <klocale.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 );
+}
+
+QString CConversion::names( unsigned int index )
+{
+ static const QString 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( QByteArray &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 QByteArray 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 );
+}
+
+