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// **********************************************************************
//
// Copyright (c) 2003-2005 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/StringConverter.h>
#include <IceUtil/Unicode.h>
#include <Ice/LocalException.h>
using namespace IceUtil;
using namespace std;
namespace Ice
{
Byte*
UnicodeWstringConverter::toUTF8(const wchar_t* sourceStart,
const wchar_t* sourceEnd,
UTF8Buffer& buffer) const
{
//
// The "chunk size" is the maximum of the number of characters in the
// source and 6 (== max bytes necessary to encode one Unicode character).
//
size_t chunkSize = std::max<size_t>(static_cast<size_t>(sourceEnd - sourceStart), 6);
Byte* targetStart = buffer.getMoreBytes(chunkSize, 0);
Byte* targetEnd = targetStart + chunkSize;
ConversionResult result;
while((result =
convertUTFWstringToUTF8(sourceStart, sourceEnd,
targetStart, targetEnd, lenientConversion))
== targetExhausted)
{
targetStart = buffer.getMoreBytes(chunkSize, targetStart);
targetEnd = targetStart + chunkSize;
}
switch(result)
{
case conversionOK:
break;
case sourceExhausted:
throw StringConversionException(__FILE__, __LINE__, "wide string source exhausted");
case sourceIllegal:
throw StringConversionException(__FILE__, __LINE__, "wide string source illegal");
default:
{
assert(0);
throw StringConversionException(__FILE__, __LINE__);
}
}
return targetStart;
}
void
UnicodeWstringConverter::fromUTF8(const Byte* sourceStart, const Byte* sourceEnd,
const wchar_t*& targetStart, const wchar_t*& targetEnd) const
{
size_t size = static_cast<size_t>(sourceEnd - sourceStart);
wchar_t* outBuf = new wchar_t[size];
wchar_t* tStart = outBuf;
ConversionResult result = convertUTF8ToUTFWstring(
sourceStart, sourceEnd, tStart, outBuf + size,
lenientConversion);
switch(result)
{
case conversionOK:
{
targetStart = outBuf;
targetEnd = tStart;
break;
}
case sourceExhausted:
throw StringConversionException(__FILE__, __LINE__, "UTF-8 string source exhausted");
case sourceIllegal:
throw StringConversionException(__FILE__, __LINE__, "UTF-8 string source illegal");
default:
{
assert(0);
throw StringConversionException(__FILE__, __LINE__);
}
}
}
void
UnicodeWstringConverter::freeTarget(const wchar_t* targetStart) const
{
#if defined(_MSC_VER) && _MSC_VER < 1300
delete[] const_cast<wchar_t*>(targetStart);
#else
delete[] targetStart;
#endif
}
void
UnicodeWstringConverter::fromUTF8(const Byte* sourceStart, const Byte* sourceEnd,
wstring& target) const
{
ConversionResult result =
convertUTF8ToUTFWstring(sourceStart, sourceEnd, target, lenientConversion);
switch(result)
{
case conversionOK:
break;
case sourceExhausted:
throw StringConversionException(__FILE__, __LINE__, "UTF-8 string source exhausted");
case sourceIllegal:
throw StringConversionException(__FILE__, __LINE__, "UTF-8 string source illegal");
default:
{
assert(0);
throw StringConversionException(__FILE__, __LINE__);
}
}
}
}
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