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-rw-r--r--khexedit/hexvalidator.cc329
1 files changed, 329 insertions, 0 deletions
diff --git a/khexedit/hexvalidator.cc b/khexedit/hexvalidator.cc
new file mode 100644
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--- /dev/null
+++ b/khexedit/hexvalidator.cc
@@ -0,0 +1,329 @@
+/*
+ * 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 <ctype.h>
+#include <stdio.h>
+#include <qwidget.h>
+#include "hexvalidator.h"
+
+CHexValidator::CHexValidator( QWidget *parent, EState state,
+ const char *name )
+ :QValidator( parent, name )
+{
+ setState( state );
+}
+
+CHexValidator::~CHexValidator( void )
+{
+}
+
+QValidator::State CHexValidator::validate( QString &string, int &/*pos*/ ) const
+{
+ if( mState == hexadecimal )
+ {
+ for( uint i=0; i < string.length(); i++ )
+ {
+ int val = string[i].latin1();
+ if( isxdigit( val ) == 0 && isspace( val ) == 0 )
+ {
+ return( QValidator::Invalid );
+ }
+ }
+ return( QValidator::Valid );
+ }
+ if( mState == decimal )
+ {
+ for( uint i=0; i < string.length(); i++ )
+ {
+ int val = string[i].latin1();
+ if( isdigit( val ) == 0 && isspace( val ) == 0 )
+ {
+ return( QValidator::Invalid );
+ }
+ }
+ return( QValidator::Valid );
+ }
+ else if( mState == octal )
+ {
+ for( uint i=0; i < string.length(); i++ )
+ {
+ int val = string[i].latin1();
+ if( (isdigit( val ) == 0 || val == '8' || val == '9') &&
+ isspace( val ) == 0 )
+ {
+ return( QValidator::Invalid );
+ }
+ }
+ return( QValidator::Valid );
+ }
+ else if( mState == binary )
+ {
+ for( uint i=0; i < string.length(); i++ )
+ {
+ int val = string[i].latin1();
+ if( val != '0' && val != '1' && isspace( val ) == 0 )
+ {
+ return( QValidator::Invalid );
+ }
+ }
+ return( QValidator::Valid );
+ }
+ else if( mState == regularText )
+ {
+ return( QValidator::Valid );
+ }
+ else
+ {
+ return( QValidator::Invalid );
+ }
+
+}
+
+
+void CHexValidator::setState( EState state )
+{
+ mState = state;
+}
+
+
+void CHexValidator::convert( QByteArray &dest, const QString &src )
+{
+ uint value;
+ uint k=0;
+
+ if( mState == hexadecimal )
+ {
+ dest.resize(0);
+
+ char buf[3];
+ for( uint i=0; i < src.length(); i++ )
+ {
+ int val = src[i].latin1();
+ if( isxdigit(val) )
+ {
+ buf[k++] = val;
+ if( k == 2 )
+ {
+ buf[k] = 0;
+ sscanf( buf, "%X", &value );
+
+ dest.resize( dest.size()+1 );
+ dest[ dest.size()-1 ] = value;
+ k = 0;
+ }
+ }
+ }
+
+ if( k == 1 )
+ {
+ buf[1] = buf[0];
+ buf[0] = '0';
+ buf[2] = 0;
+ sscanf( buf, "%X", &value );
+
+ dest.resize( dest.size()+1 );
+ dest[ dest.size()-1 ] = value;
+ }
+
+ }
+ else if( mState == decimal )
+ {
+ dest.resize(0);
+
+ char buf[4];
+ for( uint i=0; i < src.length(); i++ )
+ {
+ int val = src[i].latin1();
+ if( isdigit(val) )
+ {
+ buf[k++] = val;
+ if( k == 3 )
+ {
+ buf[k] = 0;
+ sscanf( buf, "%u", &value );
+
+ dest.resize( dest.size()+1 );
+ dest[ dest.size()-1 ] = value;
+ k = 0;
+ }
+ }
+ }
+
+ if( k == 1 || k == 2 )
+ {
+ if( k == 1 )
+ {
+ buf[2] = buf[0];
+ buf[0] = buf[1] = '0';
+ }
+ else
+ {
+ buf[2] = buf[1];
+ buf[1] = buf[0];
+ buf[0] = '0';
+ }
+ buf[3] = 0;
+ sscanf( buf, "%u", &value );
+
+ dest.resize( dest.size()+1 );
+ dest[ dest.size()-1 ] = value;
+ }
+ }
+
+ else if( mState == octal )
+ {
+ dest.resize(0);
+
+ char buf[4];
+ for( uint i=0; i < src.length(); i++ )
+ {
+ int val = src[i].latin1();
+ if( isdigit(val) )
+ {
+ buf[k++] = val;
+ if( k == 3 )
+ {
+ if( buf[0] > '3' ) { buf[0] = '3'; }
+ buf[k] = 0;
+ sscanf( buf, "%o", &value );
+
+ dest.resize( dest.size()+1 );
+ dest[ dest.size()-1 ] = value;
+ k = 0;
+ }
+ }
+ }
+
+ if( k == 1 || k == 2 )
+ {
+ if( k == 1 )
+ {
+ buf[2] = buf[0];
+ buf[0] = buf[1] = '0';
+ }
+ else
+ {
+ buf[2] = buf[1];
+ buf[1] = buf[0];
+ buf[0] = '0';
+ }
+ buf[3] = 0;
+ sscanf( buf, "%o", &value );
+
+ dest.resize( dest.size()+1 );
+ dest[ dest.size()-1 ] = value;
+ }
+ }
+ else if( mState == binary )
+ {
+ dest.resize(0);
+
+ char buf[9];
+ for( uint i=0; i < src.length(); i++ )
+ {
+ int val = src[i].latin1();
+ if( isdigit(val) )
+ {
+ buf[k++] = val;
+ if( k == 8 )
+ {
+ value = 0;
+ for( uint j=0; j < 8; j++ )
+ {
+ value |= (buf[8-j-1] == '1') ? 1<<j : 0;
+ }
+
+ dest.resize( dest.size()+1 );
+ dest[ dest.size()-1 ] = value;
+ k = 0;
+ }
+ }
+ }
+
+ if( k > 0 )
+ {
+ value = 0;
+ for( uint j=0; j < k; j++ )
+ {
+ value |= (buf[k-j-1] == '1') ? 1<<j : 0;
+ }
+
+ dest.resize( dest.size()+1 );
+ dest[ dest.size()-1 ] = value;
+ }
+ }
+ else if( mState == regularText )
+ {
+ dest.resize(src.length());
+ for( uint i=0; i < src.length(); i++ )
+ {
+ dest[i] = src[i].latin1();
+ }
+
+ }
+ else
+ {
+ dest.resize(0);
+ }
+}
+
+
+
+void CHexValidator::format( QString &dest, const QByteArray &src )
+{
+ for( uint i=0; i<src.size(); ++i )
+ {
+ unsigned char srcCh = (unsigned char)src[i];
+ QString formattedCh;
+
+ switch( mState )
+ {
+ case hexadecimal:
+ formattedCh = zeroExtend( QString::number( srcCh, 16 ), 2 );
+ break;
+ case decimal:
+ formattedCh = zeroExtend( QString::number( srcCh, 10), 3 );
+ break;
+ case octal:
+ formattedCh = zeroExtend( QString::number( srcCh, 8), 3 );
+ break;
+ case binary:
+ formattedCh = zeroExtend( QString::number( srcCh, 2), 8 );
+ break;
+ case regularText:
+ formattedCh = QString( QChar( srcCh ) );
+ break;
+ }
+
+ dest += formattedCh + " ";
+ }
+}
+
+
+QString CHexValidator::zeroExtend( const QString &src, unsigned destLen) const
+{
+ if( src.length() >= destLen )
+ return src;
+
+ QString zeroes;
+ zeroes.fill( '0', destLen - src.length() );
+ return zeroes + src;
+}
+#include "hexvalidator.moc"
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-06 00:29:30 +0000