/*

* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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:  This class provides the base class for metadata parsers.

*                This class is the highest class in parser hierarchy.

*

*/

// INCLUDE FILES

#include <syslangutil.h>

#include <languages.hrh>

#include <TopCharacterSet.rsg>

#include <data_caging_path_literals.hrh>

#include <bautils.h>

#include "MetaDataParser.h"

#include "MetaDataSourceFile.h"

#include "MetaDataFieldContainer.h"

_LIT(KCharacterSetRscFile, "TopCharacterSet.rsc");

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// CMetaDataParser::CMetaDataParser

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CMetaDataParser::CMetaDataParser()

	:	iContainer(NULL),

		iExists(EFalse),

		iCharacterSet(NULL),

		iTopCharacterSet(NULL)

    {

    }

// Destructor

CMetaDataParser::~CMetaDataParser()

	{

	}

// -----------------------------------------------------------------------------

// CMetaDataParser::MetaDataExists

// -----------------------------------------------------------------------------

//

TBool CMetaDataParser::MetaDataExists()

   	{

	return iExists;

    }

// -----------------------------------------------------------------------------

// CMetaDataParser::StripTrailingZeroes

// -----------------------------------------------------------------------------

//

TPtrC8 CMetaDataParser::StripTrailingZeroes(

	const TDesC8& aDesc, TInt aEncoding)

    {

	// Find out the actual size of data, ie without the trailing zeros

	TInt realOffset = aDesc.Length() - 1;

	if(aEncoding == 0x00 || aEncoding == 0x03)

		{

		while ( realOffset >= 0  )

			{

			if ( aDesc[realOffset] != 0x00 )

				{

				break;

				}

				realOffset--;

			}

		return aDesc.Left( realOffset + 1 );	

		}	

	else

		{

		while ( realOffset > 0  )

			{

			if ( aDesc[realOffset] != 0x00  || aDesc[realOffset-1] != 0x00)

				{

				break;

				}

				realOffset -= 2;

			}

		return aDesc.Left( realOffset + 1 );

		}

    }

// -----------------------------------------------------------------------------

// CMetaDataParser::StripTrailingZeroes

// -----------------------------------------------------------------------------

//

TPtrC CMetaDataParser::StripTrailingZeroes(

	const TDesC& aDesc)

    {

	// Find out the actual size of data, ie without the trailing zeros

	TInt realOffset = aDesc.Length() - 1;

	while ( realOffset >= 0  )

			{

			if ( aDesc[realOffset] != 0x00 )

				{

				break;

				}

				realOffset--;

			}

		return aDesc.Left( realOffset + 1 );	

    }

// -----------------------------------------------------------------------------

// CMetaDataParser::UnicodeBOM

// -----------------------------------------------------------------------------

//

TInt CMetaDataParser::UnicodeBOM(

	const TDesC8& aUnicode )

	{

#ifdef _DEBUG

     RDebug::Print(_L("CMetaDataParser::UnicodeBOM"));

#endif

	TPtrC8 bomData( aUnicode.Left( 2 ) );

	TBuf8<2> BEbom; // Big endian BOM

	BEbom.Append( TChar( 0xFE ) );

	BEbom.Append( TChar( 0xFF ) );

	TBuf8<2> LEbom; // Little endian BOM

	LEbom.Append( TChar( 0xFF ) );

	LEbom.Append( TChar( 0xFE ) );

	if ( bomData.Compare( BEbom ) == 0 )

		{

		// Big Endian

		return KUnicodeBOMBigEndian;

			}

	else if ( bomData.Compare( LEbom ) == 0 )

		{

		// Little Endian

		return 	KUnicodeBOMLittleEndian;

		}

	else

		{

		return KUnicodeBOMNotFound;

		}

	}

// -----------------------------------------------------------------------------

// CMetaDataParser::Version()

// -----------------------------------------------------------------------------

//

TID3Version CMetaDataParser::ID3Version()

{

	return ENonID3;

}

// -----------------------------------------------------------------------------

// CMetaDataParser::MapID3v1GenreToString()

// -----------------------------------------------------------------------------

//

void CMetaDataParser::MapID3GenreToStringL(TInt aNum, TDes& aGenrePtr)

{

#ifdef _DEBUG

     RDebug::Print(_L("CMetaDataParser::MapID3GenreToStringL"));

#endif

	if(aNum < 0 || aNum > 125 && aNum != 199)

		{

		return;

		}

	switch(aNum)

			{

				case 0:

					aGenrePtr.Append(KGenreBlues);

					break;

				case 1:

					aGenrePtr.Append(KGenreClassicRock);

					break;

				case 2:

					aGenrePtr.Append(KGenreCountry);

					break;

				case 3:

					aGenrePtr.Append(KGenreDance);

					break;

				case 4:

					aGenrePtr.Append(KGenreDisco);

					break;

				case 5:

					aGenrePtr.Append(KGenreFunk);

					break;

				case 6:

					aGenrePtr.Append(KGenreGrunge);

					break;

				case 7:

					aGenrePtr.Append(KGenreHipHop);

					break;

				case 8:

					aGenrePtr.Append(KGenreJazz);

					break;

				case 9:

					aGenrePtr.Append(KGenreMetal);

					break;

				case 10:

					aGenrePtr.Append(KGenreNewAge);

					break;

				case 11:

					aGenrePtr.Append(KGenreOldies);

					break;

				case 12:

					aGenrePtr.Append(KGenreOther);

					break;

				case 13:

					aGenrePtr.Append(KGenrePop);

					break;

				case 14:

					aGenrePtr.Append(KGenreRB);

					break;

				case 15:

					aGenrePtr.Append(KGenreRap);

					break;

				case 16:

					aGenrePtr.Append(KGenreReggae);

					break;

				case 17:

					aGenrePtr.Append(KGenreRock);

					break;

				case 18:

					aGenrePtr.Append(KGenreTechno);

					break;

				case 19:

					aGenrePtr.Append(KGenreIndustrial);

					break;

				case 20:

					aGenrePtr.Append(KGenreAlternative);

					break;

				case 21:

					aGenrePtr.Append(KGenreSka);

					break;

				case 22:

					aGenrePtr.Append(KGenreDeathMetal);

					break;

				case 23:

					aGenrePtr.Append(KGenrePranks);

					break;

				case 24:

					aGenrePtr.Append(KGenreSoundtrack);

					break;

				case 25:

					aGenrePtr.Append(KGenreEuroTechno);

					break;

				case 26:

					aGenrePtr.Append(KGenreAmbient);

					break;

				case 27:

					aGenrePtr.Append(KGenreTripHop);

					break;

				case 28:

					aGenrePtr.Append(KGenreVocal);

					break;

				case 29:

					aGenrePtr.Append(KGenreJazzFunk);

					break;

				case 30:

					aGenrePtr.Append(KGenreFusion);

					break;

				case 31:

					aGenrePtr.Append(KGenreTrance);

					break;

				case 32:

					aGenrePtr.Append(KGenreClassical);

					break;

				case 33:

					aGenrePtr.Append(KGenreInstrumental);

					break;

				case 34:

					aGenrePtr.Append(KGenreAcid);

					break;

				case 35:

					aGenrePtr.Append(KGenreHouse);

					break;

				case 36:

					aGenrePtr.Append(KGenreGame);

					break;

				case 37:

					aGenrePtr.Append(KGenreSoundClip);

					break;

				case 38:

					aGenrePtr.Append(KGenreGospel);

					break;

				case 39:

					aGenrePtr.Append(KGenreNoise);

					break;

				case 40:

					aGenrePtr.Append(KGenreAlternRock);

					break;

				case 41:

					aGenrePtr.Append(KGenreBass);

					break;

				case 42:

					aGenrePtr.Append(KGenreSoul);

					break;

				case 43:

					aGenrePtr.Append(KGenrePunk);

					break;

				case 44:

					aGenrePtr.Append(KGenreSpace);

					break;

				case 45:

					aGenrePtr.Append(KGenreMeditative);

					break;

				case 46:

					aGenrePtr.Append(KGenreInstrumentalPop);

					break;

				case 47:

					aGenrePtr.Append(KGenreInstrumentalRock);

					break;

				case 48:

					aGenrePtr.Append(KGenreEthnic);

					break;

				case 49:

					aGenrePtr.Append(KGenreGothic);

					break;

				case 50:

					aGenrePtr.Append(KGenreDarkwave);

					break;

				case 51:

					aGenrePtr.Append(KGenreTechnoIndustrial);

					break;

				case 52:

					aGenrePtr.Append(KGenreElectronic);

					break;

				case 53:

					aGenrePtr.Append(KGenrePopFolk);

					break;

				case 54:

					aGenrePtr.Append(KGenreEurodance);

					break;

				case 55:

					aGenrePtr.Append(KGenreDream);

					break;

				case 56:

					aGenrePtr.Append(KGenreSouthernRock);

					break;

				case 57:

					aGenrePtr.Append(KGenreComedy);

					break;

				case 58:

					aGenrePtr.Append(KGenreCult);

					break;

				case 59:

					aGenrePtr.Append(KGenreGangsta);

					break;

				case 60:

					aGenrePtr.Append(KGenreTop40);

					break;

				case 61:

					aGenrePtr.Append(KGenreChristianRap);

					break;

				case 62:

					aGenrePtr.Append(KGenrePopFunk);

					break;

				case 63:

					aGenrePtr.Append(KGenreJungle);

					break;

				case 64:

					aGenrePtr.Append(KGenreNativeAmerican);

					break;

				case 65:

					aGenrePtr.Append(KGenreCabaret);

					break;

				case 66:

					aGenrePtr.Append(KGenreNewWave);

					break;

				case 67:

					aGenrePtr.Append(KGenrePsychadelic);

					break;

				case 68:

					aGenrePtr.Append(KGenreRave);

					break;

				case 69:

					aGenrePtr.Append(KGenreShowtunes);

					break;

				case 70:

					aGenrePtr.Append(KGenreTrailer);

					break;

				case 71:

					aGenrePtr.Append(KGenreLoFi);

					break;

				case 72:

					aGenrePtr.Append(KGenreTribal);

					break;

				case 73:

					aGenrePtr.Append(KGenreAcidPunk);

					break;

				case 74:

					aGenrePtr.Append(KGenreAcidJazz);

					break;

				case 75:

					aGenrePtr.Append(KGenrePolka);

					break;

				case 76:

					aGenrePtr.Append(KGenreRetro);

					break;

				case 77:

					aGenrePtr.Append(KGenreMusical);

					break;

				case 78:

					aGenrePtr.Append(KGenreRockRoll);

					break;

				case 79:

					aGenrePtr.Append(KGenreHardRock);

					break;

				case 80:

					aGenrePtr.Append(KGenreFolk);

					break;

				case 81:

					aGenrePtr.Append(KGenreFolkRock);

					break;

				case 82:

					aGenrePtr.Append(KGenreNationalFolk);

					break;

				case 83:

					aGenrePtr.Append(KGenreSwing);

					break;

				case 84:

					aGenrePtr.Append(KGenreFastFusion);

					break;

				case 85:

					aGenrePtr.Append(KGenreBebob);

					break;

				case 86:

					aGenrePtr.Append(KGenreLatin);

					break;

				case 87:

					aGenrePtr.Append(KGenreRevival);

					break;

				case 88:

					aGenrePtr.Append(KGenreCeltic);

					break;

				case 89:

					aGenrePtr.Append(KGenreBluegrass);

					break;

				case 90:

					aGenrePtr.Append(KGenreAvantgarde);

					break;

				case 91:

					aGenrePtr.Append(KGenreGothicRock);

					break;

				case 92:

					aGenrePtr.Append(KGenreProgressiveRock);

					break;

				case 93:

					aGenrePtr.Append(KGenrePsychedelicRock);

					break;

				case 94:

					aGenrePtr.Append(KGenreSymphonicRock);

					break;

				case 95:

					aGenrePtr.Append(KGenreSlowRock);

					break;

				case 96:

					aGenrePtr.Append(KGenreBigBand);

					break;

				case 97:

					aGenrePtr.Append(KGenreChorus);

					break;

				case 98:

					aGenrePtr.Append(KGenreEasyListening);

					break;

				case 99:

					aGenrePtr.Append(KGenreAcoustic);

					break;

				case 100:

					aGenrePtr.Append(KGenreHumour);

					break;

				case 101:

					aGenrePtr.Append(KGenreSpeech);

					break;

				case 102:

					aGenrePtr.Append(KGenreChanson);

					break;

				case 103:

					aGenrePtr.Append(KGenreOpera);

					break;

				case 104:

					aGenrePtr.Append(KGenreChamberMusic);

					break;

				case 105:

					aGenrePtr.Append(KGenreSonata);

					break;

				case 106:

					aGenrePtr.Append(KGenreSymphony);

					break;

				case 107:

					aGenrePtr.Append(KGenreBootyBass);

					break;

				case 108:

					aGenrePtr.Append(KGenrePrimus);

					break;

				case 109:

					aGenrePtr.Append(KGenrePornGroove);

					break;

				case 110:

					aGenrePtr.Append(KGenreSatire);

					break;

				case 111:

					aGenrePtr.Append(KGenreSlowJam);

					break;

				case 112:

					aGenrePtr.Append(KGenreClub);

					break;

				case 113:

					aGenrePtr.Append(KGenreTango);

					break;

				case 114:

					aGenrePtr.Append(KGenreSamba);

					break;

				case 115: