/*+
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* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). +
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* All rights reserved.+
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* This component and the accompanying materials are made available+
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* under the terms of "Eclipse Public License v1.0"+
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* which accompanies this distribution, and is available+
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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*+
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* Initial Contributors:+
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* Nokia Corporation - initial contribution.+
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*+
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* Contributors:+
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*+
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* Description:  Stack to hold the data start and end markers+
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*+
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*/+
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+
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#ifndef CPENGPARSERSTACK_H+
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#define CPENGPARSERSTACK_H+
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+
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//  INCLUDES+
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#include <e32base.h>+
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+
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/**+
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 * Helper class to hold the parsing intervals in a stack+
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 *+
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 * @since 3.0+
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 */+
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NONSHARABLE_CLASS( CPEngParserStack ): public CBase+
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    {+
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public:  // Constructors and destructor+
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+
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    /**+
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     * Two-phased constructor.+
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     */+
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    static CPEngParserStack* NewL();+
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+
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    /**+
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     * Destructor.+
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     */+
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    virtual ~CPEngParserStack();+
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+
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public: // New functions+
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+
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    /**+
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     * Pushes an item marking the start of the data to the stack+
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     * @since 2.1+
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     * @return Append return value KErrNone or some error+
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     * @param aItem Item to be pushed+
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     */+
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    TInt PushStart( TUint aItem );+
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+
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    /**+
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     * Pushes an item marking the end of the data to the stack+
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     * @since 2.1+
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     * @return Append return value KErrNone or some error+
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     * @param aItem Item to be pushed+
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     */+
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    TInt PushEnd( TUint aItem );+
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+
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    /**+
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     * Pops both, the start marker and the end marker out of the stack. Both+
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     * is needed so the stack remains consistent.+
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     * @since 2.1+
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     * @return TPoint A popped item+
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     */+
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    TPoint Pop();+
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+
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    /**+
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     * Resets the stack.+
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     */+
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    void Reset();+
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+
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private:+
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+
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    /**+
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     * Pops an item marking the start of the data to the stack+
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     * @since 2.1+
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     * @return TUint A popped item+
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     */+
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    TUint PopStart();+
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+
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    /**+
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     * Pops an item marking the end of the data to the stack+
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     * @since 2.1+
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     * @return TUint A popped item+
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     */+
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    TUint PopEnd();+
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+
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private:+
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+
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    /**+
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     * C++ default constructor.+
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     */+
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    CPEngParserStack();+
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+
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+
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private:    // Data+
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    // The array of start markers+
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    RArray<TUint> iStartArray;+
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+
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    // The array of end markers+
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    RArray<TUint> iEndArray;+
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    };+
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+
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#endif      // CPENGPARSERSTACK_H+
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+
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// End of File+
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