/*

* Copyright (c) 2006 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:  Implementation of view utility helper

*

*/

// INCLUDE FILES

#include "mpxviewutilityhelper.h"

// CONSTANTS

_LIT8( KMPXDelimiter8, ";" );

_LIT8( KMPXHexMarker8, "0x" );

_LIT( KMPXDelimiter, ";" );

_LIT( KMPXHexMarker, "0x" );

// ======== MEMBER FUNCTIONS ========

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

// Extracts number from data. ( 8 bit )

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

//

TInt CMPXViewUtilityHelper::ExtractNum(

    const TDesC8& aData,

    TInt& aNextPos,

    TInt& aResult )

    {

    if ( aNextPos < 0 || aNextPos > aData.Length() )

        {

        aNextPos = KErrNotFound;

        return KErrArgument;

        }

    TInt err( KErrNone );

    TPtrC8 string( aData.Mid( aNextPos ) );

    if ( string.Length() )

        {

        TInt delimiterPos = string.Find( KMPXDelimiter8 );

        if ( KErrNotFound != delimiterPos )

            {

            string.Set( aData.Mid( aNextPos, delimiterPos ) );

            aNextPos += delimiterPos + KMPXDelimiter8().Length();

            if ( aNextPos >= aData.Length() )

                {

                // Reach the end of string

                aNextPos = KErrNotFound;

                }

            }

        else

            {

            // Reach the end of string

            aNextPos = KErrNotFound;

            }

        // Convert string to integer

        TInt hexMarkerPos = string.Find( KMPXHexMarker8 );

        if ( KErrNotFound != hexMarkerPos )

            {

            TUint numHex( 0 );

            TLex8 lexHex( string.Mid( KMPXHexMarker8().Length() ) );

            err = lexHex.Val( numHex, EHex );

            aResult = numHex;

            }

        else

            {

            TLex8 lexDec( string );

            err = lexDec.Val( aResult );

            }

        }

    else

        {

        aNextPos = KErrNotFound;

        err = KErrNotFound;

        }

    return err;

    }

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

// Extracts number from data. ( generic )

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

//

TInt CMPXViewUtilityHelper::ExtractNum(

    const TDesC& aData,

    TInt& aNextPos,

    TInt& aResult )

    {

    if ( aNextPos < 0 || aNextPos > aData.Length() )

        {

        aNextPos = KErrNotFound;

        return KErrGeneral;

        }

    TInt err( KErrNone );

    TPtrC string( aData.Mid( aNextPos ) );

    if ( string.Length() )

        {

        TInt delimiterPos = string.Find( KMPXDelimiter );

        if ( KErrNotFound != delimiterPos )

            {

            string.Set( aData.Mid( aNextPos, delimiterPos ) );

            aNextPos += delimiterPos + KMPXDelimiter().Length();

            if ( aNextPos >= aData.Length() )

                {

                // Reach the end of string

                aNextPos = KErrNotFound;

                }

            }

        else

            {

            // Reach the end of string

            aNextPos = KErrNotFound;

            }

        // Convert string to integer

        TInt hexMarkerPos = string.Find( KMPXHexMarker );

        if ( KErrNotFound != hexMarkerPos )

            {

            TUint numHex( 0 );

            TLex lexHex( string.Mid( KMPXHexMarker().Length() ) );

            err = lexHex.Val( numHex, EHex );

            aResult = numHex;

            }

        else

            {

            TLex lexDec( string );

            err = lexDec.Val( aResult );

            }

        }

    else

        {

        aNextPos = KErrNotFound;

        err = KErrNotFound;

        }

    return err;

    }

//  End of File