/*

* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#include <errno.h>

#include <e32base.h>

#include <utf.h>

#include "stringconv.h"

#include "logger.h"

TUint8 *cstrFromUtf16(const TText *aUtf16, TInt aLength, TInt &outputBytes)

{

	TPtrC16 src(aUtf16, aLength);

	TPtr8 nulldest(0,0);

	TInt len = CnvUtfConverter::ConvertFromUnicodeToUtf8(nulldest, src);

	if(len<0)

		{

		dbg << Log::Indent() << "ConvertFromUnicodeToUtf8 failed" << Log::Endl();

		FatalError();

		}

	TUint8 *buf = new TUint8[len+1];

	TPtr8 dest(buf, len);

	(void) CnvUtfConverter::ConvertFromUnicodeToUtf8(dest, src);

	buf[len] = 0; // Add NUL termination in case it is used with windows APIs

	outputBytes = dest.Length();

	return buf;

}

std::string stringFromUtf16(const TText *aUtf16, TInt aLength)

{

	TInt outputBytes = 0;

	TUint8 *outBuf = cstrFromUtf16(aUtf16, aLength, outputBytes);

	std::string str((const char *)outBuf, outputBytes);

	delete [] outBuf;

	return str;

}

std::string stringFromUtf16(const TDesC &aUtf16)

{

	return stringFromUtf16(aUtf16.Ptr(), aUtf16.Length());

}

TText *utf16FromUtf8(const TUint8 *aUtf8, TInt aLength, TInt &outputWords)

{

	// Expand UTF-8 into internal UTF-16LE representation

	TPtrC8 src(aUtf8, aLength);

	TPtr16 nulldest(0,0);

	TInt len = CnvUtfConverter::ConvertToUnicodeFromUtf8(nulldest, src);

	if(len<0)

		{

		dbg << Log::Indent() << "ConvertToUnicodeFromUtf8 failed" << Log::Endl();

		FatalError();

		}

	TUint16 *buf = new TUint16[len+1];

	TPtr16 dest(buf, len);

	(void) CnvUtfConverter::ConvertToUnicodeFromUtf8(dest, src);

	buf[len] = 0; // Add null termination in case it gets used with windows APIs

	outputWords = dest.Length();

	return buf;

}

// End of file