/*

* 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:  Parser for PCN procedures.

*

*/

// INCLUDE FILES

// CONSTANTS

// GsmPcn sim lock code prefix

_LIT( KPhoneGsmPcnSimLockCodePrefix, "*pw+" );

// GsmPcn sim unlock code prefix

_LIT( KPhoneGsmPcnSimUnlockCodePrefix, "#pw+" );

// Plus character.

const TInt KPhoneGsmPcnPlus = '+';

// Hash string

_LIT( KPhoneGsmPcnHash, "#" );

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

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

// CPhoneGsmPcnProcedureParser::CPhoneGsmPcnProcedureParser

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

//

CPhoneGsmPcnProcedureParser::CPhoneGsmPcnProcedureParser()

    {

    }

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

// CPhoneGsmPcnProcedureParser::NewLC

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

//

CPhoneGsmPcnProcedureParser* CPhoneGsmPcnProcedureParser::NewLC()

    {

    CPhoneGsmPcnProcedureParser* self = 

        new ( ELeave ) CPhoneGsmPcnProcedureParser;

    CleanupStack::PushL( self );

    return self;

    }

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

// CPhoneGsmPcnProcedureParser::ParseL

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

//

TBool CPhoneGsmPcnProcedureParser::ParseL( 

        const TDesC& aString,

        CPhoneGsmParserResult& aResult,

        CPhoneGsmOptionContainerBase& aOptions )

    {

    TBool result = EFalse;

    aResult.ClearL();

    CPhoneGsmOptionContainer& options =

                static_cast<CPhoneGsmOptionContainer&>( aOptions );

    if ( !options.FindOptionStatus( KPhoneOptionSend ) )

        {

        result = HandleSimLockCodeL( aString, aResult );

        if ( !result )

            {

            result = HandleSimUnlockCodeL( aString, aResult );

            }

        }

    return result;

    }

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

// CPhoneGsmPcnProcedureParser::HandleSimLockCodeL

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

//

TBool CPhoneGsmPcnProcedureParser::HandleSimLockCodeL(

        const TDesC& aString,

        CPhoneGsmParserResult& aResult )

    {

    TBool result = EFalse;

    // Is this SIM lock command

    if ( IsPrefixOf( aString, KPhoneGsmPcnSimLockCodePrefix ) )

        {

        TLex input( aString );

        input.Inc( KPhoneGsmPcnSimLockCodePrefix().Length() );

        if ( HandleLockCodeParametersL( input.Remainder(), aResult ) )

            {

            result = ETrue;

            aResult.SetUid( KPhoneUidSimLockCode );

            }

        else if ( IsPostfixOf( aString, KPhoneGsmPcnHash ) )

            {

            result = ETrue;

            aResult.ClearL();

            aResult.SetUid( KPhoneUidSimLockCode );

            aResult.AddParameterL( KNullDesC );

            aResult.AddParameterL( KNullDesC );

            }

        }

    return result;

    }

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

// CPhoneGsmPcnProcedureParser::HandleSimUnlockCodeL

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

//

TBool CPhoneGsmPcnProcedureParser::HandleSimUnlockCodeL(

        const TDesC& aString,

        CPhoneGsmParserResult& aResult )

    {

    TBool result = EFalse;

    // Is this SIM unlock command

    if ( IsPrefixOf( aString, KPhoneGsmPcnSimUnlockCodePrefix ) )

        {

        TLex input( aString );

        input.Inc( KPhoneGsmPcnSimLockCodePrefix().Length() );

        if ( HandleLockCodeParametersL( input.Remainder(), aResult ) )

            {

            result = ETrue;

            aResult.SetUid( KPhoneUidSimUnlockCode );

            }

        else if ( IsPostfixOf( aString, KPhoneGsmPcnHash ) )

            {

            result = ETrue;

            aResult.ClearL();

            aResult.SetUid( KPhoneUidSimUnlockCode );

            aResult.AddParameterL( KNullDesC );

            aResult.AddParameterL( KNullDesC );

            }

        }

    return result;

    }

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

// CPhoneGsmPcnProcedureParser::HandleLockCodeParametersL

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

//

TBool CPhoneGsmPcnProcedureParser::HandleLockCodeParametersL( 

        const TDesC& aString,

        CPhoneGsmParserResult& aResult )

    {

    TBool result = EFalse;

    TLex input( aString );

    TInt len; // length of strings

    // Extract first parameter

    TPtrC password( ExtractNumber( aString ) );

    len = password.Length();

    if ( len )

        {

        // Parameter ok

        input.Inc( len );       

        // Plus is separator of two parameters

        if ( input.Peek() == KPhoneGsmPcnPlus )

            {

            input.Inc();

            // Extract second parameter

            TPtrC type( ExtractNumber( input.Remainder() ) );

            len = type.Length();

            if ( len )

                {

                // Parameter ok

                input.Inc( len );

                // Check if we are at the end of string

                if ( input.Remainder() == KPhoneGsmPcnHash )

                    {

                    aResult.AddParameterL( password );

                    aResult.AddParameterL( type );

                    result = ETrue;

                    }

                }

            }

        }

    return result;

    }

//  End of File