/*

* Copyright (c) 2003 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: 

* Element attribute name and value storage class.

* A simple XML parser that implements

* the XML pull parsing interface.

*

*/

#ifndef __XPP_IMPL__

#define __XPP_IMPL__

#include <e32base.h>

#include <badesca.h>

#include "XppApi.h"

/**

 * Element attribute name and value storage class

 */

class TAttrData

    {

public:

    TPtrC8 iName;

    TPtrC8 iValue;

    };

/**

 * A simple XML parser that implements

 * the XML pull parsing interface.

 */

class CXmlPullParser : public CBase, public MXmlPullParser

    {

public: // Construction and destruction

    IMPORT_C static CXmlPullParser* NewL(CDesC8ArrayFlat& aStringValueArray);

    IMPORT_C static CXmlPullParser* NewLC(CDesC8ArrayFlat& aStringValueArray);

    IMPORT_C virtual ~CXmlPullParser();

private: // Construction

    CXmlPullParser();

    void ConstructL(CDesC8ArrayFlat& aStringValueArray);

public: // MXmlPullParser methods

    IMPORT_C void SetInput(const TDesC8& aInput);

    IMPORT_C TInt NextL();

    IMPORT_C CXmlPullParser::TParserState State();

    IMPORT_C TInt Name(TPtrC8& aName);

    IMPORT_C TInt PathL(TPtrC8& aPath);

    IMPORT_C TInt Depth(TInt& aDepth);

    IMPORT_C TInt AttributeCount(TInt& aCount);

    IMPORT_C TInt AttributeName(TInt aIndex, TPtrC8& aName);

    IMPORT_C TInt AttributeValuePredefEntitiesNotEscaped(TInt aIndex, TPtrC8& aValue);

    IMPORT_C TInt AttributeValuePredefEntitiesNotEscaped(const TDesC8& aName, TPtrC8& aValue);

    IMPORT_C TInt AttributeValueL(TInt aIndex, TPtrC8& aValue);

    IMPORT_C TInt AttributeValueL(const TDesC8& aName, TPtrC8& aValue);

    IMPORT_C TInt IsEmptyElement(TBool& aIsEmptyElement);

    IMPORT_C TInt TextPredefEntitiesNotEscaped(TPtrC8& aText);

    IMPORT_C TInt TextL(TPtrC8& aText);

    IMPORT_C TInt Pos();

    IMPORT_C TInt CurrentElementPos();

    IMPORT_C TInt Length();

    IMPORT_C TPtrC8 DocPart(TInt aStartPos, TInt aEndPos);

private:  // private methods

    void CheckSpaceL(const TDesC8& aText);

    TInt SkipLeadingNonRelevantElements();

    TInt SkipNonRelevantElements();

    TInt GetElementStartTagL();

    TInt GetElementText();

    TBool CheckIfNextEndTag();

    TBool CheckIfNextStartTag();

    TInt GetElementEndTag();

    TBool CheckIfEndOfFile();

    void CheckStringValueBufferSpaceL(const TDesC8& aValue);

    TInt EscapeCharRefAndPreDefEntities();

    TInt PredefinedEntitiesEscaped();

    TInt CharacterReferencesEscaped();

private:

    TParserState iState;

    //const TDesC8* iInput;

    TPtrC8 iText;  // element text

    CArrayFixFlat<TAttrData> *iCAttrDataArray;

    TPtrC8 iDocument;  // pointer to whole document to parse

    TLexMark8 iMarkPosition;

    TPtrC8 iDocPart;

    TLex8 iLexer;

    TInt iCurrentElementPos;

    HBufC8* iPathBuf;

    TPtr8 iPathBufPtr;

    TPtrC8 iElement;  // element name

    TInt iDepth;

    TBool iIsEmptyElement;

    TBool iCdataStartFound;

    TBool iCdataSectionText;

    HBufC8* iStringValue;  // used when entities are escaped

    TPtr8 iStringValuePtr;

    CDesC8ArrayFlat* iStringValueArray;

    };

#endif // __XPP_IMPL__