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93 lines
2.3 KiB
93 lines
2.3 KiB
/***************************************************************************
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kdecimalbytecodec.cpp - description
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-------------------
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begin : Mo Nov 29 2004
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copyright : (C) 2004 by Friedrich W. H. Kossebau
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email : Friedrich.W.H@Kossebau.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License version 2 as published by the Free Software Foundation. *
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* *
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***************************************************************************/
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// lib specific
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#include "kdecimalbytecodec.h"
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using namespace KHE;
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void KDecimalByteCodec::encode( TQString &Digits, unsigned int Pos, unsigned char Char ) const
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{
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unsigned char C = Char / 100;
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Digits.at(Pos++) = '0'+C;
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Char -= C * 100;
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C = Char / 10;
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Digits.at(Pos++) = '0'+C;
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Char -= C * 10;
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Digits.at(Pos) = '0'+Char;
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}
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void KDecimalByteCodec::encodeShort( TQString &Digits, unsigned int Pos, unsigned char Char ) const
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{
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unsigned char C;
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if( (C = Char / 100) )
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{
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Digits.at(Pos++) = '0'+C;
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Char -= C * 100;
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}
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if( (C = Char / 10) )
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{
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Digits.at(Pos++) = '0'+C;
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Char -= C * 10;
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}
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Digits.at(Pos) = '0'+Char;
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}
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bool KDecimalByteCodec::isValidDigit( unsigned char Digit ) const
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{
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return Digit >= '0' && Digit <= '9';
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}
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bool KDecimalByteCodec::turnToValue( unsigned char *Digit ) const
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{
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if( isValidDigit(*Digit) )
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{
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*Digit -= '0';
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return true;
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}
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return false;
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}
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bool KDecimalByteCodec::appendDigit( unsigned char *Byte, unsigned char Digit ) const
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{
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if( turnToValue(&Digit) )
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{
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unsigned char B = *Byte;
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if( B < 26 )
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{
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B *= 10;
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if( Digit <= 255-B )
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{
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B += Digit;
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*Byte = B;
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return true;
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}
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}
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}
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return false;
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}
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void KDecimalByteCodec::removeLastDigit( unsigned char *Byte ) const
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{
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*Byte /= 10;
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}
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