telutils/phoneparser/src/CPhoneVoipNumberParser.cpp
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     1 /*
       
     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Parser for emergency numbers.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include    "CPhoneVoipNumberParser.h"
       
    21 #include    "CPhoneGsmParserResult.h"
       
    22 #include    "CPhoneGsmOptionContainer.h"
       
    23 #include    "phoneParserCommon.h"
       
    24 
       
    25 // CONSTANTS
       
    26 
       
    27 // ============================ MEMBER FUNCTIONS ===============================
       
    28 
       
    29 // -----------------------------------------------------------------------------
       
    30 // CPhoneVoipNumberParser::CPhoneVoipNumberParser
       
    31 // -----------------------------------------------------------------------------
       
    32 //
       
    33 CPhoneVoipNumberParser::CPhoneVoipNumberParser()
       
    34     {
       
    35     }
       
    36 
       
    37 // -----------------------------------------------------------------------------
       
    38 // CPhoneVoipNumberParser::NewLC
       
    39 // -----------------------------------------------------------------------------
       
    40 //
       
    41 CPhoneVoipNumberParser* CPhoneVoipNumberParser::NewLC()
       
    42     {
       
    43     CPhoneVoipNumberParser* self = 
       
    44         new ( ELeave ) CPhoneVoipNumberParser;
       
    45     
       
    46     CleanupStack::PushL( self );
       
    47         
       
    48     return self;
       
    49     }
       
    50 
       
    51 // -----------------------------------------------------------------------------
       
    52 // CPhoneVoipNumberParser::ParseL
       
    53 // -----------------------------------------------------------------------------
       
    54 //
       
    55 TBool CPhoneVoipNumberParser::ParseL( 
       
    56         const TDesC& aString,
       
    57         CPhoneGsmParserResult& aResult,
       
    58         CPhoneGsmOptionContainerBase& aOptions )
       
    59     {
       
    60     aResult.ClearL();
       
    61 
       
    62     TBool result = DoParseL( 
       
    63             aString,
       
    64             aResult,
       
    65             static_cast<CPhoneGsmOptionContainer&>( aOptions ) );
       
    66 
       
    67     if ( !result )
       
    68         {
       
    69         aResult.ClearL();
       
    70         }
       
    71 
       
    72     return result;
       
    73     }
       
    74     
       
    75 // -----------------------------------------------------------------------------
       
    76 // CPhoneVoipNumberParser::DoParseL
       
    77 // -----------------------------------------------------------------------------
       
    78 //
       
    79 TBool CPhoneVoipNumberParser::DoParseL( 
       
    80         const TDesC& aString,
       
    81         CPhoneGsmParserResult& aResult,
       
    82         CPhoneGsmOptionContainer& aOptions )
       
    83     {
       
    84     TBool result( EFalse );
       
    85 
       
    86     if ( aOptions.FindOptionStatus( KPhoneOptionSend ) )
       
    87         {
       
    88         if ( aOptions.FindOptionStatus( KPhoneOptionVoipCall ) &&
       
    89              aString.Length() )
       
    90             {
       
    91             TLex input( aString );
       
    92             
       
    93             // Take number part and put it to first parameter of the aResult.
       
    94             TakeNumberPartL( input, aResult );       
       
    95             // Take rest of string( postfix part ) to next parameter of the result.
       
    96             TakeDtmfPostfixL( input, aResult );
       
    97 
       
    98             aResult.SetUid( KPhoneUidVoipNumber );
       
    99             result = ETrue;
       
   100             }
       
   101         }
       
   102 
       
   103     return result;
       
   104     }
       
   105 
       
   106 // -----------------------------------------------------------------------------
       
   107 // CPhoneVoipNumberParser::TakeNumberPartL
       
   108 // 
       
   109 // Take the main part of the phone number and add it to result.
       
   110 // -----------------------------------------------------------------------------
       
   111 //
       
   112 void CPhoneVoipNumberParser::TakeNumberPartL(
       
   113         TLex& aLex,
       
   114         CPhoneGsmParserResult& aResult )
       
   115     {
       
   116     TLexMark start;
       
   117     aLex.Mark( start );
       
   118     TBool allDigits = ETrue;
       
   119     TBool dtmfFound = EFalse;
       
   120     
       
   121     while ( !aLex.Eos() &&
       
   122             !dtmfFound )
       
   123         {
       
   124         TChar nextChar = aLex.Peek().GetLowerCase();
       
   125         if ( allDigits &&
       
   126             ( KPhoneDtmfPause == nextChar ||
       
   127               KPhoneDtmfWait == nextChar ||
       
   128               KPhonePlus == nextChar ) )
       
   129             {
       
   130             // Dtmf string is always postfixed if present
       
   131             if ( aLex.Offset() > 0 )
       
   132                 {
       
   133                 // Check if rest of the string is valid dtmf string
       
   134                 TPtrC remainder( aLex.Remainder() );
       
   135                 if ( IsValidDtmfString( remainder ) )
       
   136                     {
       
   137                     dtmfFound = ETrue;     
       
   138                     }
       
   139                 }
       
   140             }
       
   141         
       
   142         if ( !dtmfFound )
       
   143             {
       
   144             if ( !nextChar.IsDigit() &&
       
   145                   nextChar != KPhonePlus )
       
   146                 {
       
   147                 allDigits = EFalse;
       
   148                 }
       
   149             aLex.Inc();
       
   150             }
       
   151         }
       
   152     
       
   153     // Add main part of the number to the parsing result
       
   154     TPtrC mainpart( aLex.MarkedToken( start ) );
       
   155     aResult.AddParameterL( mainpart );   
       
   156     }
       
   157 
       
   158 // -----------------------------------------------------------------------------
       
   159 // CPhoneVoipNumberParser::TakeDtmfPostfixL
       
   160 // -----------------------------------------------------------------------------
       
   161 //
       
   162 void CPhoneVoipNumberParser::TakeDtmfPostfixL(
       
   163         TLex& aLex,
       
   164         CPhoneGsmParserResult& aResult )
       
   165     {
       
   166     // Add rest of string( after TLex16::iNext ) to result.
       
   167     aResult.AddParameterL( aLex.Remainder() );
       
   168     }
       
   169 
       
   170 // -----------------------------------------------------------------------------
       
   171 // CPhoneVoipNumberParser::IsValidDtmfString
       
   172 // -----------------------------------------------------------------------------
       
   173 //
       
   174 TBool CPhoneVoipNumberParser::IsValidDtmfString( TPtrC& aString )
       
   175     { 
       
   176     TBool validDtmf = ETrue;
       
   177     // Check that string contains only valid dtmf characters
       
   178     for( TInt i = 0; i < aString.Length(); i++ )
       
   179         {
       
   180         if ( KErrNotFound == KValidDtmfChars().Locate( aString[i] ) )
       
   181             {
       
   182             validDtmf = EFalse;
       
   183             break;
       
   184             }      
       
   185         }
       
   186     return validDtmf;
       
   187     }
       
   188 //  End of File