/*

* Copyright (c) 2005-2009 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: 

*

*/

#if !defined(__INIPARSER_H__)

#define __INIPARSER_H__

#include <e32base.h>

#include <f32file.h>

_LIT(KUseSystemDrive, "$:");

class CIniData : public CBase 

/**

 *

 * @publishedPartner

 * @test

 *

 * Defines the interface to acess to ini data file

 *

 * The basic functions, FindVar(), SetValue(), AddValue() and WriteToFileL()

 * Compulsory to call WriteToFileL() after calling any SetValue() or AddValue()

 */

	{

public:

	// Constructor, pass in name of ini file to open

	// Default search path is 'c:\system\data' on target filesystem

	// ie. 'NewL(_L("c:\\system\\data\\ttools.ini"))' is equivalent

	// to 'NewL(_L("ttools.ini"))'

	IMPORT_C static CIniData* NewL(const TDesC& aName);

	IMPORT_C virtual ~CIniData();

	IMPORT_C TBool FindVar(const TDesC &aKeyName,	// Key to look for

						TPtrC &aResult);			// Buffer to store value

	IMPORT_C TBool FindVar(const TDesC &aKeyName, 	// Key to look for

						TInt &aResult);				// Int ref to store result

	IMPORT_C TBool FindVar(const TDesC &aSection,	// Section to look under

						const TDesC &aKeyName,		// Key to look for

						TPtrC &aResult);			// Buffer to store result

	IMPORT_C TBool FindVar(const TDesC &aSection,	// Section to look under

						const TDesC &aKeyName,		// Key to look for

						TInt &aResult);				// Int ref to store result

	IMPORT_C TInt SetValue(const TDesC& aKeyName,// Key to look for

						const TDesC& aValue);  // aValue being modified

	IMPORT_C TInt SetValue(const TDesC& aSection, // Section to look under

						const TDesC& aKeyName,  // Key to look for

						const TDesC& aValue);  // aValue being modified

	IMPORT_C TInt AddValue(const TDesC& aSection,  // Section to look under

						const TDesC& aKeyName,   // Key to look for

						const TDesC& aValue);   // aValue being modified

	IMPORT_C TInt AddValue(const TDesC& aKeyName,   // Key to look for

						const TDesC& aValue);  // aValue being modified

	IMPORT_C void WriteToFileL();

	// Overloaded NewL() added to recieve optional system drive letter from the user

	// And expand ${SYSDRIVE} variable. Else, the variable expands to RFs::GetSystemDrive()

	IMPORT_C static CIniData* NewL(const TDesC& aName, const TDesC& aSysDrive);

protected:

	IMPORT_C CIniData();

	IMPORT_C CIniData(const TDesC& aSysDrive);

	IMPORT_C void ConstructL(const TDesC& aName);

public:

	IMPORT_C TBool FindVar(const TDesC &aSection,	// Section to look under

						const TDesC &aKeyName,		// Key to look for

						TInt64 &aResult);			// Int64 ref to store result

private:

	void UpdateVariablesL();

	TBool FindVar(const TDesC &aSectName,const TDesC &aKeyName,TPtrC &aResult, TPtr& aIniDataPtr);

private:

	HBufC* iName;

	HBufC* iToken;

	HBufC* iIniData;

	TPtr iPtr;

	TPtr iPtrExpandedVars;

	TDriveName iDefaultSysDrive;

	TDriveName iSysDrive;

	};

#endif