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tdeutils/khexedit/lib/codecs/kbytecodec.cpp

64 lines
1.9 KiB

/***************************************************************************
kbytecodec.cpp - description
-------------------
begin : Mo Nov 29 2004
copyright : (C) 2004 by Friedrich W. H. Kossebau
email : Friedrich.W.H@Kossebau.de
***************************************************************************/
/***************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License version 2 as published by the Free Software Foundation. *
* *
***************************************************************************/
// lib specific
#include "kbinarybytecodec.h"
#include "koctalbytecodec.h"
#include "kdecimalbytecodec.h"
#include "khexadecimalbytecodec.h"
using namespace KHE;
KByteCodec *KByteCodec::createCodec( KCoding C )
{
KByteCodec *Codec;
switch( C )
{
case DecimalCoding: Codec = new KDecimalByteCodec(); break;
case OctalCoding: Codec = new KOctalByteCodec(); break;
case BinaryCoding: Codec = new KBinaryByteCodec(); break;
case HexadecimalCoding:
default: Codec = new KHexadecimalByteCodec();
}
return Codec;
}
unsigned int KByteCodec::decode( unsigned char *Char, const TQString &Digits, uint Pos ) const
{
//kdDebug() << TQString("KByteCodec::decode(%1,%2)").tqarg(Digits).tqarg(Pos) << endl;
const uint P = Pos;
// remove leading 0s
while( Digits.at(Pos) == '0' ) { ++Pos; }
unsigned char C = 0;
unsigned int d = encodingWidth();
do
{
if( !appendDigit(&C,Digits.tqat(Pos)) )
break;
++Pos;
--d;
}
while( d > 0 );
*Char = C;
return Pos - P;
}