/*

* Copyright (c) 2007-2009 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:

* Name          : CSIPPreParser.h

* Part of       : SIP Codec

* Version       : SIP/6.0 

*

*/

/**

 @internalComponent

*/

#ifndef CSIPPREPARSER_H

#define CSIPPREPARSER_H

#include <e32base.h>

#include "_sipcodecdefs.h"

class CSIPHeaderNameValue;

class CSIPPreParser : public CBase

	{

public:

	static CSIPPreParser* NewL (HBufC8* aSipMessageBuf);

	static CSIPPreParser* NewLC (HBufC8* aSipMessageBuf);

	~CSIPPreParser ();

    TPtrC8 FirstLineL ();

	HBufC8* ContentL ();

private:

	CSIPPreParser (const TDesC8& aSipMessageDes);

	void ConstructL (HBufC8* aSipMessageBuf);

	TUint HeaderCount ();

	CSIPHeaderNameValue* ParseNameValueL (TInt aIndex);

	TPtrC8 GetLineL (TInt aLineStartPosition);

	void ParseL ();

	void CreateHeaderBufL (const TDesC8& aSipMessageDes);

    void FindHeaderPartEndPositionL (const TDesC8& aSipMessageDes,

                                     TInt& aPosition);

	TBool HandleCrL ();

	TBool HandleLfL ();

	void SkipSpacesAndTabsL ();	

	void MoveToNextLineL ();

	inline TChar GetCharL();

	inline TChar GetChar();

	inline void UnGetChar();

private: // Data

	HBufC8*       iSipMessageBuf;

	HBufC8*       iHeaderBuf;

	TInt          iOriginalHeaderPartLength;

    RArray<TUint> iHeaderStartArray;

    TLex8         iLexBuf;

	friend class TSIPHeaderNameValueIter;

private: // For testing purposes

	UNIT_TEST(CSIPPreParserTest)

	};

#endif // CSIPPREPARSER_H

// End of File