/*

* Copyright (c) 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: This file contains the header file of the 

* CStifParser.

*

*/

#ifndef STIF_PARSER_H

#define STIF_PARSER_H

//  INCLUDES

#include <f32file.h>

#include <e32std.h>

#include <e32base.h>

#include "StifSectionParser.h"

#include "StifItemParser.h"

// CONSTANTS

// None

// MACROS

// None

// DATA TYPES

// None

// FUNCTION PROTOTYPES

// None

// FORWARD DECLARATIONS

class CStifSectionParser;

class CStifFileParser;

// CLASS DECLARATION

// DESCRIPTION

// CStifParser is a STIF Test Framework StifParser class.

// Class contains a configuration file parsing operations.

class CStifParser

        :public CBase

    {

    public:     // Enumerations

        // Indication which type of comments are in use

        enum TCommentType

            {

            ENoComments,        // No comments type given, parse all

            ECStyleComments,    // C-style comments( // and /*...*/ ) are

                                // removed

            };

    private:    // Enumerations

        // Indication which mode of parsing are in use

        enum TParsingMode

            {

            EFileParsing,       // Indication for file parsing.

            EBufferParsing,     // Indication for buffer parsing.

            };

    public:     // Constructors and destructor

        /**

        * Two-phased constructor.

        * Creating parser with path and file information. For default all

        * information will be parsed(ENoComments).

        */

        IMPORT_C static CStifParser* NewL( const TDesC& aPath, 

                                            const TDesC& aConfig,

                                            TCommentType = ENoComments);

        /**

        * Two-phased constructor.

        * Creating parser with buffer information. For default all

        * information will be parsed(ENoComments).

        */

        IMPORT_C static CStifParser* NewL( const TDesC& aBuffer, 

                                            TCommentType = ENoComments );

        /**

        * Destructor.

        */

        IMPORT_C ~CStifParser();

    public:     // New functions

        /**

        * Open and read configuration source and parses a required section.

        * If start tag is empty the parsing starts beging of the configuration

        * file.

        * If end tag is empty the parsing goes end of configuration file.

        * This method starts always from beginning of configuration file and

        * parses first section if aSeeked parameters is not given.

        * If configuration file includes several sections with both start and

        * end tags so aSeeked parameter seeks the required section. The aSeeked

        * parameters indicates section that will be parsed.

        */

        IMPORT_C CStifSectionParser* SectionL( const TDesC& aStartTag,

                                                const TDesC& aEndTag,

                                                TInt aSeeked = 1 );

        /**

        * Open and read configuration source and parses a required section.

        * If start tag is empty the parsing starts beging of the configuration

        * file.

        * If end tag is empty the parsing goes end of configuration file.

        * This method will parse next section after the earlier section if

        * aSeeked parameter is not given.

        * If configuration file includes several sections with both start and

        * end tags so aSeeked parameter seeks the required section. The aSeeked

        * parameters indicates section that will be parsed.

        */

        IMPORT_C CStifSectionParser* NextSectionL( const TDesC& aStartTag,

                                                    const TDesC& aEndTag,

                                                    TInt aSeeked = 1 );

    public:     // Functions from base classes

    protected:  // New functions

    protected:  // Functions from base classes

    private:

        /**

        * C++ default constructor.

        */

        CStifParser( TCommentType aCommentType );

        /**

        * By default Symbian OS constructor is private.

        */

        void ConstructL( const TDesC& aPath,

                         const TDesC& aConfig,

                         const TDesC& aContent = KNullDesC );

        /**

        * Convert a section without comments.

        */

        void ParseCommentsOff( TPtr& aBuf );

        //

        // Handles special marks.( '\/\/', '\/\*' and '*/\/' ). This

        // is used when ECStyleComments comment type is used. 

        //

        void HandleSpecialMarks( TPtr& aBuf );

        /**

        * Open and read configuration source and parses a required section.

        * If start tag is empty the parsing starts beging of the configuration

        * file.

        * If end tag is empty the parsing goes end of configuration file.

        * This method will parse next section after the earlier section if

        * aSeeked parameter is not given.

        * If configuration file includes several sections with both start and

        * end tags so aSeeked parameter seeks the required section. The aSeeked

        * parameters indicates section that will be parsed.

        */

		CStifSectionParser *NextSectionMemoryL( const TDesC& aStartTag,

                                              	const TDesC& aEndTag,

                                                TInt aSeeked );

        /**

        * Open and read configuration source and parses a required section.

        * If start tag is empty the parsing starts beging of the configuration

        * file.

        * If end tag is empty the parsing goes end of configuration file.

        * This method will parse next section after the earlier section if

        * aSeeked parameter is not given.

        * If configuration file includes several sections with both start and

        * end tags so aSeeked parameter seeks the required section. The aSeeked

        * parameters indicates section that will be parsed.

        */

		CStifSectionParser *NextSectionFileL( const TDesC& aStartTag,

                                              const TDesC& aEndTag,

                                              TInt aSeeked );

    public:     // Data

    protected:  // Data

    private:    // Data

        /**

        * For file opening.

        */

        RFs         iFileServer;

        /**

        * For file opening.

        */

        RFile       iFile;

        /**

        * Indicates position where we are currently.

        */

        TInt        iOffset;

        /**

        * Comment type's indication.

        */

        TCommentType iCommentType;

        /**

        * Indication which mode of parsing are in use.

        */

        TParsingMode iParsingMode;

        /**

        * For buffer parsing.

        */

        HBufC*       iBufferTmp;

        TPtr         iBuffer;

        /**

        * Flag indicating if file is unicode.

        */

        TBool        iIsUnicode;

        /**

        * Pointer to file parser.

        */

		CStifFileParser* iFileParser;

    public:     // Friend classes

    protected:  // Friend classes

    private:    // Friend classes

    };

#endif      // STIF_PARSER_H

// End of File