telutils/phoneparser/src/CPhoneVoipNumberParser.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 15:31:58 +0300
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permissions -rw-r--r--
Revision: 201011 Kit: 201015
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/*
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* Copyright (c) 2008 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:  Parser for emergency numbers.
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*
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*/
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// INCLUDE FILES
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#include    "cphonevoipnumberparser.h" 
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#include    "cphonegsmparserresult.h" 
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#include    "cphonegsmoptioncontainer.h" 
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#include    "phoneparsercommon.h" 
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// CONSTANTS
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CPhoneVoipNumberParser::CPhoneVoipNumberParser
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// -----------------------------------------------------------------------------
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//
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CPhoneVoipNumberParser::CPhoneVoipNumberParser()
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    {
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    }
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// -----------------------------------------------------------------------------
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// CPhoneVoipNumberParser::NewLC
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// -----------------------------------------------------------------------------
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//
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CPhoneVoipNumberParser* CPhoneVoipNumberParser::NewLC()
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    {
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    CPhoneVoipNumberParser* self = 
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        new ( ELeave ) CPhoneVoipNumberParser;
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    CleanupStack::PushL( self );
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// CPhoneVoipNumberParser::ParseL
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// -----------------------------------------------------------------------------
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//
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TBool CPhoneVoipNumberParser::ParseL( 
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        const TDesC& aString,
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        CPhoneGsmParserResult& aResult,
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        CPhoneGsmOptionContainerBase& aOptions )
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    {
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    aResult.ClearL();
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    TBool result = DoParseL( 
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            aString,
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            aResult,
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            static_cast<CPhoneGsmOptionContainer&>( aOptions ) );
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    if ( !result )
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        {
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        aResult.ClearL();
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        }
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    return result;
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    }
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// -----------------------------------------------------------------------------
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// CPhoneVoipNumberParser::DoParseL
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// -----------------------------------------------------------------------------
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//
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TBool CPhoneVoipNumberParser::DoParseL( 
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        const TDesC& aString,
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        CPhoneGsmParserResult& aResult,
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        CPhoneGsmOptionContainer& aOptions )
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    {
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    TBool result( EFalse );
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    if ( aOptions.FindOptionStatus( KPhoneOptionSend ) )
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        {
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        if ( aOptions.FindOptionStatus( KPhoneOptionVoipCall ) &&
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             aString.Length() )
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            {
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            TLex input( aString );
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            // Take number part and put it to first parameter of the aResult.
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            TakeNumberPartL( input, aResult );       
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            // Take rest of string( postfix part ) to next parameter of the result.
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            TakeDtmfPostfixL( input, aResult );
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            aResult.SetUid( KPhoneUidVoipNumber );
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            result = ETrue;
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            }
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        }
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    return result;
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    }
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// -----------------------------------------------------------------------------
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// CPhoneVoipNumberParser::TakeNumberPartL
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// 
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// Take the main part of the phone number and add it to result.
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// -----------------------------------------------------------------------------
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//
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void CPhoneVoipNumberParser::TakeNumberPartL(
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        TLex& aLex,
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        CPhoneGsmParserResult& aResult )
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    {
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    TLexMark start;
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    aLex.Mark( start );
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    TBool allDigits = ETrue;
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    TBool dtmfFound = EFalse;
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    while ( !aLex.Eos() &&
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            !dtmfFound )
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        {
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        TChar nextChar = aLex.Peek().GetLowerCase();
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        if ( allDigits &&
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            ( KPhoneDtmfPause == nextChar ||
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              KPhoneDtmfWait == nextChar ||
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              KPhonePlus == nextChar ) )
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            {
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            // Dtmf string is always postfixed if present
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            if ( aLex.Offset() > 0 )
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                {
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                // Check if rest of the string is valid dtmf string
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                TPtrC remainder( aLex.Remainder() );
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                if ( IsValidDtmfString( remainder ) )
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                    {
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                    dtmfFound = ETrue;     
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                    }
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                }
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            }
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        if ( !dtmfFound )
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            {
12
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            if ( !nextChar.IsDigit() )
0
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                {
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                allDigits = EFalse;
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                }
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            aLex.Inc();
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            }
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        }
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    // Add main part of the number to the parsing result
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    TPtrC mainpart( aLex.MarkedToken( start ) );
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    aResult.AddParameterL( mainpart );   
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    }
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// -----------------------------------------------------------------------------
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// CPhoneVoipNumberParser::TakeDtmfPostfixL
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// -----------------------------------------------------------------------------
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//
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void CPhoneVoipNumberParser::TakeDtmfPostfixL(
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        TLex& aLex,
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        CPhoneGsmParserResult& aResult )
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    {
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    // Add rest of string( after TLex16::iNext ) to result.
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    aResult.AddParameterL( aLex.Remainder() );
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    }
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   168
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// -----------------------------------------------------------------------------
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// CPhoneVoipNumberParser::IsValidDtmfString
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// -----------------------------------------------------------------------------
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//
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TBool CPhoneVoipNumberParser::IsValidDtmfString( TPtrC& aString )
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    { 
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    TBool validDtmf = ETrue;
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    // Check that string contains only valid dtmf characters
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    for( TInt i = 0; i < aString.Length(); i++ )
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        {
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        if ( KErrNotFound == KValidDtmfChars().Locate( aString[i] ) )
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            {
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            validDtmf = EFalse;
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            break;
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            }      
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        }
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    return validDtmf;
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    }
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//  End of File