1 /*

     2 * Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #ifndef __PARSELST_H__

    20 #define __PARSELST_H__

    21 

    22 #include <e32std.h>

    23 #include <mparser.h>

    24 #include <txtrich.h>

    25 //++ sort out definitive hash includes

    26 

    27 

    28 NONSHARABLE_CLASS(CParserList) : public CBase

    29 /**

    30 @internalComponent

    31 */

    32 	{

    33 	enum TParserTagValues

    34 		{

    35 		EReformatOnRecogniseFlag = (TInt)0x80000000,

    36 		EReformatOnRolloverFlag = 0x40000000,

    37 		EDefaultParserFlag = 0x20000000,

    38 		EParserTagMask = 0x3FFFFFFF,

    39 		EMaxParserIndex = 0x1FFFFFFF

    40 		};

    41 

    42 	enum TParserListPanic

    43 		{

    44 		EParserNoneActive,

    45 		EParserNullPtr,

    46 		EParserInstanceNotActive,

    47 		EParserNoSuchTag,

    48 		EParserIgnoringAllowFlag,

    49 		EParserIndexRollover

    50 		};

    51 

    52 private:

    53 	class CParserItem : public CBase

    54 		{

    55 	public:

    56 		CParserItem(MParser* aParser, const TUint aTagIndex);

    57 		~CParserItem() {}

    58 

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

    60 		inline TUint TagIndex() const {return iTagIndex;}

    61 

    62 	private:

    63 		MParser* iParser;

    64 		TUint iTagIndex;

    65 		};

    66 

    67 public:

    68 	CParserList();

    69 	~CParserList();

    70 

    71 	void ActivateParserL(MParser* aParser);

    72 	void DeactivateParser(MParser* aParser);

    73 	void ActivateDefaultParserL(MParser* aParser);

    74 	void DeactivateParserDefaults();

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

    76 	MParser* ParserWithThisTag(const TUint aTagIndex) const;

    77 	TUint TagForThisParser(const MParser *const aParser) const;

    78 

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

    80 

    81 private:

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

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

    84 

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

    86 

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

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

    89 						const TInt aStartScan, const TInt aScanLength,

    90 						TInt& aStartOfTags, TInt& aLength);

    91 	void Panic(TParserListPanic aPanic) const;

    92 

    93 private:

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

    95 	TUint iHighestIndex;

    96 public:

    97 	TInt iNumberInList;

    98 	TInt iRefCount;

    99 	};

   100 

   101 NONSHARABLE_CLASS(CParserData) : public CBase

   102 /**

   103 @internalComponent

   104 */

   105 	{

   106 public:

   107 	CParserData(TInt aEndParse);

   108 	~CParserData();

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

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

   111 	void KillRange() { iStartParse = -1; }

   112 	TInt StartParse() const { return iStartParse; }

   113 	TInt EndParse() const { return iEndParse; }

   114 

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

   116 	MEditObserver* iEditObserver;

   117 	TInt iLastKnownCursor;

   118 

   119 private:

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

   121 	TInt iEndParse;					// end of text to be parsed

   122 	};

   123 

   124 #endif