/*

* Copyright (c) 2002 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:  XML parser

*

*/

#ifndef __XMLPARSER_H__

#define __XMLPARSER_H__

// ------------------------------------------------------------------------------------------------

// Includes

// ------------------------------------------------------------------------------------------------

#include <e32base.h>

#include <s32strm.h>

#include "WBXMLDefs.h"

#include "WBXMLHandler.h"

#include "WBXMLParserError.h"

// ------------------------------------------------------------------------------------------------

// Constants

// ------------------------------------------------------------------------------------------------

_LIT(KXMLNoExtHandler, "No extension handler");

_LIT(KXMLNoDocHandler, "No document handler");

_LIT8(KXMLNull, "\0x00");

// ------------------------------------------------------------------------------------------------

// Forwards

// ------------------------------------------------------------------------------------------------

class CXMLAttributes;

// ------------------------------------------------------------------------------------------------

// TXMLStackItem

// ------------------------------------------------------------------------------------------------

struct TXMLStackItem

	{

public:

	inline TXMLStackItem( TUint8 aTag, TUint8 aCodePage );

	inline TUint8 Tag() const;

	inline TUint8 CodePage() const;

private:

	TUint8 iTag;

	TUint8 iCodePage;

	};

inline TXMLStackItem::TXMLStackItem( TUint8 aTag, TUint8 aCodePage ) : iTag(aTag), iCodePage(aCodePage)

	{

	}

inline TUint8 TXMLStackItem::Tag() const

	{

	return iTag;

	}

inline TUint8 TXMLStackItem::CodePage() const

	{

	return iCodePage;

	}

// ------------------------------------------------------------------------------------------------

// CXMLParser

// ------------------------------------------------------------------------------------------------

class CXMLParser : public CBase

	{

public:

	IMPORT_C static CXMLParser* NewL();

	IMPORT_C ~CXMLParser();

	IMPORT_C void SetDocumentHandler( MWBXMLDocumentHandler* aHandler );

	IMPORT_C void SetExtensionHandler( MWBXMLExtensionHandler* aHandler );

	IMPORT_C void SetDocumentL( RReadStream& aInput );

	IMPORT_C TWBXMLParserError ParseL();

protected:

	TWBXMLParserError doParseDocumentHeaderL();

	TWBXMLParserError doParseDocumentBodyL();

	TUint32 readMUint32L();

	TUint8 readUint8L();

	TPtrC8 readStrIL();

	TPtrC8 readOpaqueL();

	TPtrC8 stringTableString( TUint32 aIndex );

	void readAttributesL( CWBXMLAttributes* aAttributes );

	void readStringTableL();

	void handleExtensionsL( TUint8 aId );

	void handleElementL( TUint8 aId );

private:

	void ConstructL();

private:

	MWBXMLDocumentHandler* iDocHandler;

	MWBXMLExtensionHandler* iExtHandler;

	HBufC8* iStringTable;

	RReadStream iInput;

	RArray<TXMLStackItem> iStack;

	CBufBase* iBuffer;

	TUint8 iCodePage;

	TBool iDocHdrParsed;

	};

#endif // __XMLPARSER_H__