// Copyright (c) 2001-2009 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:

//

#ifndef __CHTMLTOCRTCONVHASHTABLE_H__

#define __CHTMLTOCRTCONVHASHTABLE_H__

#include <e32std.h>

#include <e32base.h>

#include "CHtmlToCrtConvHash.h"

#include "CHtmlToCrtConvLookupTable.h"

class CHtmlToCrtConvHashTable : public CBase

	{

	public:

		static CHtmlToCrtConvHashTable* NewL();

		~CHtmlToCrtConvHashTable();

/**

	@fn				THtmlToCrtConvTagType LookupTag(const TDesC8& aTag) const

	Intended Usage	: Searches for aTag in KTagHashTable[] and returns

					  corresponding THtmlToCrtConvTagType<br>

	@param			aTag The text to be searched for

	@return			THtmlToCrtConvTagType The corresponding type

					 - EHtmlTagUnknown if not found

 */

		THtmlToCrtConvTagType LookupTag(const TDesC16& aTag) const;

/**

	@fn				THtmlToCrtConvAttributeType LookupAttribute(const TDesC8& aAttribute) const

	Intended Usage	: Searches for aAttribute in KAttributeHashTable[] and returns

					  corresponding THtmlToCrtConvAttributeType<br>

	@param			aAttribute The text to be searched for

	@return			THtmlToCrtConvAttributeType The corresponding type

					 - EHtmlAttributeUnknown if not found

 */

		THtmlToCrtConvAttributeType LookupAttribute(const TDesC16& aAttribute) const;

/**

	@fn				const TDesC16&	LookupEntity(const TDesC16& aEntityName) const

	Intended Usage	: Searches for aEntityName in KEntityHashTable[] and returns the 

					  corresponding entity

	@param			aEntityName The entity name to be searched for

	@return			const TDesC16& The corresponding entity

	                - KHtmlEntityUnknown if not found

*/

		const TDesC16&	LookupEntity(const TDesC16& aEntityName) const;

	private:

		CHtmlToCrtConvHashTable();

		void ConstructL();

/**

	@fn				void CreateTagHashTableL()

	Intended Usage	: Used by LookupTag()

					  Populates iTagHashValues with values

					  generated from KTagHashTable[]<br>

	@return			void

 */

		void CreateTagHashTableL();

/**

	@fn				void CreateAttributeHashTableL()

	Intended Usage	: Used by LookupAttribute()

					  Populates iAttributeHashValues with values

					  generated from KAttributeHashTable[]<br>

	@return			void

 */

		void CreateAttributeHashTableL();

/**

	@fn				CreateEntityHashTableL()

	Intended Usage	: Populates iEntityHashValues with values

					  generated from KEntityHashTable[]. iEnitityHashValues 

					  is used by LookupEntity()

	@return			void

  */

		void CreateEntityHashTableL();

/**

	@fn				TInt Hash(const TDesC8& aText) const

	Intended Usage	: Used by CreateTagHashTableL(), CreateAttributeHashTableL(),

					  LookupTag() and LookupAttribute()

					  Takes a descriptor, and returns a value determined

					  by the descriptor<br>

	@param			aText the text to be translated into a hash value

	@return			TInt a value determined by aText

 */

		TInt Hash(const TDesC16& aText) const;

	private:

		RArray<TInt> iTagHashValues;

		RArray<TInt> iAttributeHashValues;

	};

#endif