//
// Okzoniom::RPG
// Copyright (C) 2010 - 2013
// Okzoniom::RPG Development Team
// - Louis SCHNELLBACH
//
// This file is part of the Okzoniom::RPG Game.
//
#include <iostream>
#include <cstring>
#include <sstream>
#include "Utils.h"
#include "Log.h"
#include "Lua.h"
std::wstring okz::wide(const std::string& s)
{
std::wstring wideString;
uint32_t ascii = 0;
uint32_t nAscii = 0;
uint8_t byte[4] = {0,0,0,0};
uint8_t ctrl[3] = {0xF0, 0xE0, 0xC0};
uint8_t mask[3] = {0x7, 0xF, 0x1F};
uint8_t nbByte = 0;
for(uint32_t i = 0; i < s.size(); ++i)
{
//Get each byte for the code
ascii = s[i];
// BYTE 0 --> 3
for(int j = 0; j < 4; ++j)
byte[j] = ascii >> ((3-j)*8);
//We have still some byte to treat
if(nbByte > 0)
{
--nbByte;
nAscii = (nAscii << 6) | (byte[3-nbByte] & 0x3F);
//Add new char !
if(nbByte == 0)
wideString.push_back(nAscii);
}
else
{
//Ok, new char
//Simple test to know if multi byte:
if((char)ascii > 0)
{
//1-Byte ASCII, so treated here, and then next char !
wideString.push_back(ascii);
}
else
{
//So only need to check the first 3 bytes
for(int j = 0; j < 3; ++j)
if(nbByte > 0)
break;
else nbByte = byte[2-j] & ctrl[2-j];
//Get the correct byte number
nbByte = (nbByte == 0xF0 ? 3 : nbByte == 0xE0 ? 2 : 1);
nAscii = 0 | ascii & mask[3-nbByte];
}
}
}
return wideString;
}
