/*

* Copyright (c) 1997-2000 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* 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(__CONVDATA_H__)

#define __CONVDATA_H__

/**

@internalComponent

*/

struct SCnvConversionData

	{

/** Specifies the default endian-ness of the current character set. Used by SetDefaultEndiannessOfForeignCharacters(). */

	enum TEndianness // the values of these *must not* change they are used hard-coded in CNVTOOL.PL

		{

		EUnspecified		=0,

		EFixedLittleEndian	=1,

		EFixedBigEndian		=2

		};

	struct SVariableByteData

		{

		struct SRange

			{

			TUint8 iFirstInitialByteValueInRange;

			TUint8 iLastInitialByteValueInRange;

			TUint8 iNumberOfSubsequentBytes;

			TUint8 iSpare;

			};

		TInt iNumberOfRanges;

		const SRange* iRangeArray;

		};

	struct SOneDirectionData

		{

		struct SRange

			{

			enum TAlgorithm

				{

				// each of these, with the exception of EDirect, has a corresponding member of UData

				EDirect,

				EOffset,

				EIndexedTable16,

				EKeyedTable1616,

				EKeyedTable16OfIndexedTables16

				};

			union UData

				{

				struct SIndexedTable16

					{

					struct SEntry

						{

						TUint16 iOutputCharacterCode;

						};

					const SEntry* iEntryArray;

					};

				struct SKeyedTable1616

					{

					struct SEntry

						{

						TUint16 iKey;

						TUint16 iOutputCharacterCode;

						};

					TInt iNumberOfEntries;

					const SEntry* iEntryArray;

					};

				struct SKeyedTable16OfIndexedTables16

					{

					struct SKeyedEntry

						{

						TUint16 iFirstInputCharacterCodeInIndexedTable;

						TUint16 iLastInputCharacterCodeInIndexedTable;

						const TUint16* iIndexedEntryArray;

						};

					TInt iNumberOfKeyedEntries;

					const SKeyedEntry* iKeyedEntryArray;

					};

				TInt iOffset;

				SIndexedTable16 iIndexedTable16;

				SKeyedTable1616 iKeyedTable1616;

				SKeyedTable16OfIndexedTables16 iKeyedTable16OfIndexedTables16;

				};

			TUint iFirstInputCharacterCodeInRange;

			TUint iLastInputCharacterCodeInRange;

			TUint8 iAlgorithm; // one of the TAlgorithm values

			TUint8 iSizeOfOutputCharacterCodeInBytesIfForeign; // only used in SCnvConversionData::iUnicodeToForeignData

			TUint16 iSpare;

#if defined(CONST_STATIC_UNIONS_ARE_POSSIBLE)

			UData iData;

#else

			struct

				{

				TUint iWord1;

				TUint iWord2;

				} iData;

#endif

			};

		TInt iNumberOfRanges;

		const SRange* iRangeArray;

		};

	TEndianness iEndiannessOfForeignCharacters;

	SVariableByteData iForeignVariableByteData;

	SOneDirectionData iForeignToUnicodeData;

	SOneDirectionData iUnicodeToForeignData;

	TAny* iSpareForFutureUse_1;

	TAny* iSpareForFutureUse_2;

	};

/**

@internalComponent

*/

#define UData_SIndexedTable16(a) \

	reinterpret_cast<TUint>(const_cast<SCnvConversionData::SOneDirectionData::SRange::UData::SIndexedTable16::SEntry*>(a)) 

/**

@internalComponent

*/

#define UData_SKeyedTable1616(a) \

	static_cast<TUint>ARRAY_LENGTH(a), \

	reinterpret_cast<TUint>(const_cast<SCnvConversionData::SOneDirectionData::SRange::UData::SKeyedTable1616::SEntry*>(a))

/**

@internalComponent

*/

#define UData_SKeyedTable16OfIndexedTables16(a)	\

	static_cast<TUint>ARRAY_LENGTH(a), \

	reinterpret_cast<TUint>(const_cast<SCnvConversionData::SOneDirectionData::SRange::UData::SKeyedTable16OfIndexedTables16::SKeyedEntry *>(a)) 

#endif