/*

* 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:  Utility functions common for all parsers.

*

*/

// INCLUDE FILES

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

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

// CPhoneGsmParserBase::IsPrefixOf

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

//

TBool CPhoneGsmParserBase::IsPrefixOf( 

        const TDesC& aString, 

        const TDesC& aPrefix )

    {

    TBool result = EFalse;

    if ( aPrefix.Length() <= aString.Length() )

        {

        TPtrC part( aString.Left( aPrefix.Length() ) );

        result = ( part == aPrefix );

        }

    return result;

    }

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

// CPhoneGsmParserBase::IsPostfixOf

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

//

TBool CPhoneGsmParserBase::IsPostfixOf(

        const TDesC& aString,

        const TDesC& aPostfix )

    {

    TBool result = EFalse;

    if ( aPostfix.Length() <= aString.Length() )

        {

        TPtrC part( aString.Right( aPostfix.Length() ) );

        result = ( part == aPostfix );

        }

    return result;

    }

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

// CPhoneGsmParserBase::ExtractNumber

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

//

TPtrC CPhoneGsmParserBase::ExtractNumber( 

        const TDesC& aString )

    {

    TPtrC result( KNullDesC );

    if ( aString.Length() )

        {

        TLex input( aString );

        TLexMark mark;

        input.Mark( mark );

        while ( input.Peek().IsDigit() )

            {

            input.Inc();

            }

        result.Set( input.MarkedToken( mark ) );

        }

    return result;

    }

//  End of File