/*

 * Copyright (c) 1999-2009 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 __PARSELST_H__

 #define __PARSELST_H__

 #include <e32std.h>

 #include <mparser.h>

 #include <txtrich.h>

 //++ sort out definitive hash includes

 NONSHARABLE_CLASS(CParserList) : public CBase

 /**

 @internalComponent

 */

 	{

 	enum TParserTagValues

 		{

 		EReformatOnRecogniseFlag = (TInt)0x80000000,

 		EReformatOnRolloverFlag = 0x40000000,

 		EDefaultParserFlag = 0x20000000,

 		EParserTagMask = 0x3FFFFFFF,

 		EMaxParserIndex = 0x1FFFFFFF

 		};

 	enum TParserListPanic

 		{

 		EParserNoneActive,

 		EParserNullPtr,

 		EParserInstanceNotActive,

 		EParserNoSuchTag,

 		EParserIgnoringAllowFlag,

 		EParserIndexRollover

 		};

 private:

 	class CParserItem : public CBase

 		{

 	public:

 		CParserItem(MParser* aParser, const TUint aTagIndex);

 		~CParserItem() {}

 		inline MParser* Parser() const {return iParser;}

 		inline TUint TagIndex() const {return iTagIndex;}

 	private:

 		MParser* iParser;

 		TUint iTagIndex;

 		};

 public:

 	CParserList();

 	~CParserList();

 	void ActivateParserL(MParser* aParser);

 	void DeactivateParser(MParser* aParser);

 	void ActivateDefaultParserL(MParser* aParser);

 	void DeactivateParserDefaults();

 	TBool ParseThisText(CRichText& aTextObj,TInt aStartScan,TInt aScanLength,TInt& aStartOfTags,TInt& aLength);

 	MParser* ParserWithThisTag(const TUint aTagIndex) const;

 	TUint TagForThisParser(const MParser *const aParser) const;

 	static inline TBool ReformatOnRollover(const TUint aTagIndex) {return (aTagIndex & EReformatOnRolloverFlag);}

 private:

 	static inline TBool ReformatOnRecognise(const TUint aTagIndex) {return (aTagIndex & static_cast<TUint>( EReformatOnRecogniseFlag ) );}

 	static inline TBool DefaultParser(const TUint aTagIndex) {return (aTagIndex & EDefaultParserFlag);}

 	static inline TUint MaskedTag(const TUint32 aTagIndex) {return (aTagIndex & EParserTagMask);}

 	void ActivateAParserL(MParser* aParser, const TBool aDefaultParser);

 	TBool LoopOneParser(MParser* aParser, const TUint aTagIndex, CRichText& aTextObj,

 						const TInt aStartScan, const TInt aScanLength,

 						TInt& aStartOfTags, TInt& aLength);

 	void Panic(TParserListPanic aPanic) const;

 private:

 	RPointerArray<CParserItem> iParserList;	// List of active parsers (specific and default)

 	TUint iHighestIndex;

 public:

 	TInt iNumberInList;

 	TInt iRefCount;

 	};

 NONSHARABLE_CLASS(CParserData) : public CBase

 /**

 @internalComponent

 */

 	{

 public:

 	CParserData(TInt aEndParse);

 	~CParserData();

 	TBool HaveRange() const { return iStartParse != -1; }

 	void MergeRange(TInt aStart,TInt aOldLength,TInt aNewLength);

 	void KillRange() { iStartParse = -1; }

 	TInt StartParse() const { return iStartParse; }

 	TInt EndParse() const { return iEndParse; }

 	CParserList* iActiveParserList;	// local copy because access to Dll::Tls is slow

 	MEditObserver* iEditObserver;

 	TInt iLastKnownCursor;

 private:

 	TInt iStartParse;				// start of text to be parsed; -1 means none

 	TInt iEndParse;					// end of text to be parsed

 	};

 #endif