1 /*

     2 * Copyright (c) 2002 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:  XML parser

    15 *

    16 */

    17 

    18 

    19 #ifndef __XMLPARSER_H__

    20 #define __XMLPARSER_H__

    21 

    22 // ------------------------------------------------------------------------------------------------

    23 // Includes

    24 // ------------------------------------------------------------------------------------------------

    25 #include <e32base.h>

    26 #include <s32strm.h>

    27 

    28 #include "WBXMLDefs.h"

    29 #include "WBXMLHandler.h"

    30 #include "WBXMLParserError.h"

    31 

    32 // ------------------------------------------------------------------------------------------------

    33 // Constants

    34 // ------------------------------------------------------------------------------------------------

    35 _LIT(KXMLNoExtHandler, "No extension handler");

    36 _LIT(KXMLNoDocHandler, "No document handler");

    37 

    38 _LIT8(KXMLNull, "\0x00");

    39 

    40 // ------------------------------------------------------------------------------------------------

    41 // Forwards

    42 // ------------------------------------------------------------------------------------------------

    43 class CXMLAttributes;

    44 

    45 // ------------------------------------------------------------------------------------------------

    46 // TXMLStackItem

    47 // ------------------------------------------------------------------------------------------------

    48 struct TXMLStackItem

    49 	{

    50 public:

    51 	inline TXMLStackItem( TUint8 aTag, TUint8 aCodePage );

    52 	inline TUint8 Tag() const;

    53 	inline TUint8 CodePage() const;

    54 

    55 private:

    56 	TUint8 iTag;

    57 	TUint8 iCodePage;

    58 	};

    59 

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

    61 	{

    62 	}

    63 

    64 inline TUint8 TXMLStackItem::Tag() const

    65 	{

    66 	return iTag;

    67 	}

    68 

    69 inline TUint8 TXMLStackItem::CodePage() const

    70 	{

    71 	return iCodePage;

    72 	}

    73 

    74 // ------------------------------------------------------------------------------------------------

    75 // CXMLParser

    76 // ------------------------------------------------------------------------------------------------

    77 class CXMLParser : public CBase

    78 	{

    79 public:

    80 	IMPORT_C static CXMLParser* NewL();

    81 	IMPORT_C ~CXMLParser();

    82 	IMPORT_C void SetDocumentHandler( MWBXMLDocumentHandler* aHandler );

    83 	IMPORT_C void SetExtensionHandler( MWBXMLExtensionHandler* aHandler );

    84 

    85 	IMPORT_C void SetDocumentL( RReadStream& aInput );

    86 	IMPORT_C TWBXMLParserError ParseL();

    87 

    88 protected:

    89 	TWBXMLParserError doParseDocumentHeaderL();

    90 	TWBXMLParserError doParseDocumentBodyL();

    91 

    92 	TUint32 readMUint32L();

    93 	TUint8 readUint8L();

    94 	TPtrC8 readStrIL();

    95 	TPtrC8 readOpaqueL();

    96 	TPtrC8 stringTableString( TUint32 aIndex );

    97 	void readAttributesL( CWBXMLAttributes* aAttributes );

    98 	void readStringTableL();

    99 	void handleExtensionsL( TUint8 aId );

   100 	void handleElementL( TUint8 aId );

   101 

   102 private:

   103 	void ConstructL();

   104 

   105 private:

   106 	MWBXMLDocumentHandler* iDocHandler;

   107 	MWBXMLExtensionHandler* iExtHandler;

   108 	HBufC8* iStringTable;

   109 	RReadStream iInput;

   110 	RArray<TXMLStackItem> iStack;

   111 	CBufBase* iBuffer;

   112 	TUint8 iCodePage;

   113 	TBool iDocHdrParsed;

   114 	};

   115 

   116 #endif // __XMLPARSER_H__