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// **********************************************************************
//
// Copyright (c) 2003-2014 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <Ice/Ice.h>
#include <StringConverterI.h>
using namespace std;
Demo::StringConverterI::StringConverterI()
{
}
Demo::StringConverterI::~StringConverterI()
{
}
Ice::Byte*
Demo::StringConverterI::toUTF8(const char* sourceStart, const char* sourceEnd, Ice::UTF8Buffer& buffer) const
{
size_t inputSize = static_cast<size_t>(sourceEnd - sourceStart);
size_t chunkSize = std::max<size_t>(inputSize, 6);
size_t outputBytesLeft = chunkSize;
Ice::Byte* targetStart = buffer.getMoreBytes(chunkSize, 0);
size_t offset = 0;
for(unsigned int i = 0; i < inputSize; ++i)
{
unsigned char byte = sourceStart[i];
if(byte <= 0x7F)
{
if(outputBytesLeft == 0)
{
targetStart = buffer.getMoreBytes(chunkSize, targetStart + chunkSize);
offset = 0;
}
targetStart[offset] = byte;
++offset;
--outputBytesLeft;
}
else
{
if(outputBytesLeft <= 1)
{
targetStart = buffer.getMoreBytes(chunkSize, targetStart + chunkSize - outputBytesLeft);
offset = 0;
}
targetStart[offset] = 0xC0 | ((byte & 0xC0) >> 6);
targetStart[offset + 1] = 0x80 | (byte & 0x3F);
offset += 2;
outputBytesLeft -= 2;
}
}
return targetStart + offset;
}
void
Demo::StringConverterI::fromUTF8(const Ice::Byte* sourceStart, const Ice::Byte* sourceEnd,
string& target) const
{
size_t inSize = static_cast<size_t>(sourceEnd - sourceStart);
target.resize(inSize);
unsigned int targetIndex = 0;
unsigned int i = 0;
while(i < inSize)
{
if((sourceStart[i] & 0xC0) == 0xC0)
{
if(i + 1 >= inSize)
{
throw Ice::StringConversionException(__FILE__, __LINE__, "UTF-8 string source exhausted");
}
target[targetIndex] = (sourceStart[i] & 0x03) << 6;
target[targetIndex] = target[targetIndex] | (sourceStart[i + 1] & 0x3F);
i += 2;
}
else
{
target[targetIndex] = sourceStart[i];
++i;
}
++targetIndex;
}
target.resize(targetIndex);
}
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