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/* $Id: translate.cpp,v 1.4 2006/11/05 04:42:43 ganzhorn Exp $
* This file is part of lfhex.
* Copyright (C) 2006 Salem Ganzhorn <eyekode@yahoo.com>
*
* 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 version 2.
*
* 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 "translate.hpp"
// translation maps from byte->hex, hex->byte, and byte->char
// mappings are static arrays for speed
#include "mappings.h"
void Translate::CharToByte(vector<uchar>& dst, const vector<uchar>& src)
{
// just copy the base into the byte vector
dst = vector<uchar>(src.begin(),src.end());
}
void Translate::CharToByte(vector<uchar>& dst, const QString& src)
{
// just copy the base into the byte vector
dst.resize( src.length() );
for(int i =0 ; i < src.length(); ++i)
dst[i] = src[i].toAscii();
}
void Translate::ByteToChar(vector<uchar>& dst, const vector<uchar>& src)
{
dst.erase(dst.begin(),dst.end());
dst.reserve(src.size());
for(unsigned int i = 0; i < src.size(); i++) {
dst.push_back(TranslationTables::byteToCharMap[src[i]]);
}
}
void Translate::ByteToChar(QString& dst, const vector<uchar>& src)
{
dst = "";
for(unsigned int i = 0; i < src.size(); i++) {
dst += TranslationTables::byteToCharMap[src[i]];
}
}
void Translate::HexToByte(vector<uchar>& dst, const vector<uchar>& src)
{
dst.erase(dst.begin(),dst.end());
int start;
if( src.size() % 2 ) {
// if odd
dst.reserve(src.size()/2+1);
dst.push_back(TranslationTables::hexToByteMap[src[0]]);
start = 1;
} else {
start = 0;
dst.reserve(src.size()/2);
}
for(unsigned int i = start; i < src.size(); i+=2) {
dst.push_back(TranslationTables::hexToByteMap[src[i]]*16 +
TranslationTables::hexToByteMap[src[i+1]]);
}
}
void Translate::HexToByte(vector<uchar>& dst, const QString& src)
{
dst.erase(dst.begin(),dst.end());
dst.reserve(src.length()/2);
int i = 0;
if( src.length() % 2 ) {
i = 1;
}
for(; i < src.length(); i+=2) {
uchar hi = src[i].toAscii();
uchar lo = src[i+1].toAscii();
dst.push_back( TranslationTables::hexToByteMap[hi]*16 +
TranslationTables::hexToByteMap[lo] );
}
}
void Translate::OctalToByte(vector<uchar> &dst, const vector<uchar>& src)
{
dst.erase(dst.begin(),dst.end());
dst.reserve(src.size()/3);
for(unsigned int i = 0; i+2 < src.size(); i+=3) {
dst.push_back(TranslationTables::hexToByteMap[src[i]]*64+
TranslationTables::hexToByteMap[src[i+1]]*8+
TranslationTables::hexToByteMap[src[i+2]]);
}
}
void Translate::BinaryToByte(vector<uchar> &dst, const vector<uchar>& src)
{
dst.erase(dst.begin(),dst.end());
dst.reserve(src.size()/8);
// FIXME: would be faster if we compared each src[i] with '1' before mult
for(unsigned int i = 0; i < src.size(); i+=8) {
dst.push_back(TranslationTables::hexToByteMap[src[i]]*128+
TranslationTables::hexToByteMap[src[i+1]]*64+
TranslationTables::hexToByteMap[src[i+2]]*32+
TranslationTables::hexToByteMap[src[i+3]]*16+
TranslationTables::hexToByteMap[src[i+4]]*8+
TranslationTables::hexToByteMap[src[i+5]]*4+
TranslationTables::hexToByteMap[src[i+6]]*2+
TranslationTables::hexToByteMap[src[i+7]]);
}
}
const char * Translate::ByteToHex(uchar b)
{
return TranslationTables::byteToHexMap[b];
}
void Translate::ByteToHex(vector<uchar>& dst, const vector<uchar>& src)
{
const char * str;
dst.erase(dst.begin(),dst.end());
dst.reserve(src.size()*2);
for(unsigned int i = 0; i < src.size(); i++) {
str = TranslationTables::byteToHexMap[src[i]];
dst.push_back(*str);
dst.push_back(*(str+1));
}
}
void Translate::ByteToHex(QString& dst, const vector<uchar>&src)
{
dst = "";
for(unsigned int i = 0; i < src.size(); i++) {
dst += TranslationTables::byteToHexMap[src[i]];
}
}
void Translate::ByteToOctal(vector<uchar>&dst, const vector<uchar>&src)
{
dst.erase(dst.begin(),dst.end());
dst.reserve(src.size()*3);
vector<uchar>::const_iterator itr;
const char * str;
for(itr = src.begin(); itr != src.end(); ++itr) {
str = TranslationTables::byteToOctalMap[*itr];
dst.insert( dst.end(), str, str+3 );
}
}
void Translate::ByteToOctal(QString&dst, const vector<uchar>&src)
{
dst = "";
vector<uchar>::const_iterator itr;
for(itr = src.begin(); itr != src.end(); ++itr) {
dst += TranslationTables::byteToOctalMap[*itr];
}
}
void Translate::ByteToBinary(vector<uchar>&dst, const vector<uchar>&src)
{
dst.erase(dst.begin(),dst.end());
dst.reserve(src.size()*8);
vector<uchar>::const_iterator itr;
const char * str;
for(itr = src.begin(); itr != src.end(); ++itr) {
str = TranslationTables::byteToBinaryMap[*itr];
dst.insert(dst.end(), str, str+8);
}
}
void Translate::ByteToBinary(QString&dst, const vector<uchar>&src)
{
dst = "";
vector<uchar>::const_iterator itr;
for(itr = src.begin(); itr != src.end(); ++itr) {
dst += TranslationTables::byteToBinaryMap[*itr];
}
}
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