/*

* Copyright (c) 2002-2009 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:  It is responsible of parsing of GSM specified supplementary 

*                service requests.

*

*/

#ifndef CPHONEGSMSSPARSER_H

#define CPHONEGSMSSPARSER_H

// INCLUDES

#include    <e32base.h>

// CONSTANTS

/*

* SUPPLEMENTARY SERVICE UIDS

*/

/*

* Now follows uids for all supported supplementary services.

*/

const TUint32 KPhoneUidForwardingAll = 

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 0 );

const TUint32 KPhoneUidForwardingAllConditional = 

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 1 );

const TUint32 KPhoneUidForwardingUnconditional = 

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 2 );

const TUint32 KPhoneUidForwardingNoReply = 

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 3 );

const TUint32 KPhoneUidForwardingNotReachable = 

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 4 );

const TUint32 KPhoneUidForwardingBusy = 

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 5 );

const TUint32 KPhoneUidBarringAllOutgoingCalls = 

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 6 );

const TUint32 KPhoneUidBarringAllIncomingCalls =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 7 );

const TUint32 KPhoneUidBarringAllServices =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 8 );

const TUint32 KPhoneUidBarringAllOutgoingInternationalCalls =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 9 );

const TUint32 KPhoneUidBarringAllOutgoingInternationalCallsExceptHome =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 10 );

const TUint32 KPhoneUidBarringAllOutgoingServices = 

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 11 );

const TUint32 KPhoneUidBarringAllIncomingCallsWhenRoaming =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 12 );

const TUint32 KPhoneUidBarringAllIncomingServices = 

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 13 );

const TUint32 KPhoneUidWaiting =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 14 );

const TUint32 KPhoneUidCallingLineIdentificationPresentation =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 15 );

const TUint32 KPhoneUidCallingLineIdentificationRestriction =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 16 );

const TUint32 KPhoneUidConnectedLinePresentation =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 17 );

const TUint32 KPhoneUidConnectedLinePresentationRestriction =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 18 );

const TUint32 KPhoneUidPassword =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 19 );

const TUint32 KPhoneUidCallingNamePresentation =

    PHONE_MAKE_UID( KPhoneGsmUidSupplementaryService, 20 );

/**

* It defines the maximum lenght of service code.

*/

const TInt KPhoneGsmSsServiceCodeMaxLength = 5;

// CLASS DECLARATION

/**

* It is responsible of parsing GSM specified supplementary services that

* are supported.

*

* @since 1.0

* @lib phoneparser.lib

*/

NONSHARABLE_CLASS( CPhoneGsmSsParser )

    : public CPhoneGsmParserBase

    {

    public: // Types

        /**

        * Enumeration for different service types.

        */

        enum TServiceType

            {

            EServiceActivation,

            EServiceDeactivation,

            EServiceInterrogation,

            EServiceRegistration,

            EServiceErasure

            };

        /** 

        * Enumeration for different syntax.

        *

        * ESyntaxNotAllowed

        *   Not allowed.

        *

        * ESyntaxNoParameters

        *   No parameters. 

        *

        *     SS_code#

        *

        * ESyntaxEmptyOrBasicCode

        *   No parameters or empty and basic code.

        *

        *     SS_code# or SS_code**BB#             

        *

        * ESyntaxNumberOptBasicCodeOptTimer

        *   Number parameter or number parameter and basic code or

        *   number parameter and basic code and timer or number parameter

        *   and timer.

        *

        *     SS_code*NN# or SS_code*NN*BB# or SS_code*NN*BB*TT# or

        *     SS_code*NN**TT#

        *

        * ESyntaxNumberOptBasicCode

        *   Number parameter or number parameter and basic code.

        *

        *     SS_code*NN# or SS_code*NN*BB#

        *

        * ESyntaxPasswordOptBasicCode

        *   Password or password and basic code. 

        *

        *     SS_code*PPPP# or SS_code*PPPP*BB#

        *

        * ESyntaxOptGroupCodePasswordNewPasswordNewPassword

        *

        *   Register group code and password and new password and 

        *   new password. Or same with empty register group.

        *

        *     SS_code*xxx*PPPP*WWWW*WWWW#         

        *     SS_code**PPPP*WWWW*WWWW#

        *

        * ESyntaxEmptyOrBasicCode2    

        *   Empty or Basic code 

        *

        *     SS_code# or SS_code*BB#

        */

        enum TServiceSyntax

            {

            ESyntaxNotAllowed,

            ESyntaxNoParameters, 

            ESyntaxEmptyOrBasicCode, 

            ESyntaxNumberOptBasicCodeOptTimer,

            ESyntaxNumberOptBasicCode,

            ESyntaxPasswordOptBasicCode,

            ESyntaxOptGroupCodePasswordNewPasswordNewPassword,

            ESyntaxEmptyOrBasicCode2

            };

    public:  // Constructors and destructor      

        /**

        * Two-phased constructor.

        */

        static CPhoneGsmSsParser* NewLC();

        /**

        * Destructor.

        */

        ~CPhoneGsmSsParser();

    public: // New functions

        /**

        * Pack data to integer.

        *

        * @param aResult It will contain packed data.

        * @param aType type of service.

        * @param aSyntax syntax of service.

        */

        static void PackData(

            TUint& aResult,

            TServiceType aType,

            TServiceSyntax aSyntax );       

        /**

        * Unpack data from integer.

        *

        * @param aData packed data.

        * @param aType type of service.

        * @param aSyntax syntax of service.

        */

        static void UnpackData(

            TUint aData,

            TServiceType& aType,

            TServiceSyntax& aSyntax );

// from base class CPhoneGsmParserBase    

        /**

         * From CPhoneGsmParserBase.

         * Parses ss strings.

         *

         * @param aString string to be parser.

         * @param aResult It will contain result.

         * @param aOptions It contains options.

         * @return ETrue iff string parsed successfully.

         */

         TBool ParseL(

                 const TDesC& aString, 

                 CPhoneGsmParserResult& aResult,

                 CPhoneGsmOptionContainerBase& aOptions );

    private:

        /**

        * C++ default constructor.

        */

        CPhoneGsmSsParser();

        /**

        * By default Symbian OS constructor is private.

        */

        void ConstructL();

        /**

        * Handle parameters.

        */

        TBool HandleParametersL( 

            TLex& aInput, 

            CPhoneGsmParserResult& aResult,

            TServiceSyntax aSyntax );

        /**

        * Handle "not allowed" syntax.

        */

        TBool HandleNotAllowedL( 

            TLex& aInput, 

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "no more parameters" syntax.

        */ 

        TBool HandleNoParametersL( 

            TLex& aInput, 

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "empty or basic code" syntax.

        */

        TBool HandleEmptyOrBasicCodeL( 

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "number optionally basic code and timer" syntax.

        */

        TBool HandleNumberOptBasicCodeOptTimerL(

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "number optionally basic code" syntax.

        */

        TBool HandleNumberOptBasicCodeL(

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "password optionally basic code" syntax.

        */

        TBool HandlePasswordOptBasicCodeL(

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "optionally group code, then old password and new

        * password twice" syntax.

        */

        TBool HandleOptGroupCodePasswordNewPasswordNewPasswordL(

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "empty or basic code" syntax.

        */

        TBool HandleEmptyOrBasicCode2L(

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "empty parameter" syntax.

        */

        TBool HandleEmptyParameterL( 

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "basic code" syntax.

        */

        TBool HandleBasicCodeL( 

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "directory number" syntax.

        */

        TBool HandleNumberL( 

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "timer" syntax.

        */

        TBool HandleTimerL( 

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "password" syntax.

        */

        TBool HandlePasswordL( 

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Handle "group code" syntax.

        */

        TBool HandleGroupCodeL( 

            TLex& aInput,

            CPhoneGsmParserResult& aResult );

        /**

        * Check basic service code.

        */

        TBool CheckBasicCode( const TDesC& aCode );

        /**

        * Check 'no reply timer'

        */

        TBool CheckTimer( const TDesC& aCode );

        /**

        * Check password group code.

        */ 

        TBool CheckGroupCode( const TDesC& aCode );

        /**

        * Find string (starting from current position) that 

        * contains characters from given string. 

        *

        * (note that empty string may be returned).

        */

        static TPtrC FindString( 

            TLex& aInput,

            const TDesC& aAllowedCharacters );

        /**

        * Add a new service.

        *

        * SHOULD ONLY BE USED DURING CONSTRUCTION.

        *

        * Panics if invalid service description is passed.

        *

        * @param aService It is service description.

        * @param aUid It is uid for the service.

        */

        void AddL( const TDesC& aService, TUint aUid );

        /**

        * Add a new service.

        *

        * SHOULD ONLY BE USED DURING CONSTRUCTION.

        */

        void AddServiceL( 

            const TDesC& aServiceCode,

            TServiceSyntax aActivation,

            TServiceSyntax aDeactivation,

            TServiceSyntax aInterrogation,

            TServiceSyntax aRegistration,

            TServiceSyntax aErasure,

            TUint aUid );

        /**

        * Get next number as descriptor.

        *

        * ONLY TO BE USED DURING SERVICE DESCRIPTION PARSING.

        *

        * Panics if next character (not a space) does not start 

        * a new number or the number is invalid.

        *

        * @param aLex It is lex.

        * @return Returns number.

        */

        static TPtrC NextNumber( TLex& aLex );

        /**

        * Get next number as value.

        *

        * ONLY TO BE USED DURING SERVICE DESCRIPTION PARSING.

        *

        * Panics if next character (not a space) does not start 

        * a new number or the number is invalid.

        *

        * @param aLex It is lex.

        * @return Returns number as value.

        */

        static TUint NextNumberAsValue( TLex& aLex );       

        /**

        * Converts to service syntax.

        *

        * @param aService It is numerical value of service syntax.

        * @return Returns service syntax corresponding to value.

        */

        static TServiceSyntax ConvertToServiceSyntax( TUint aService );

    private:    // Data

        /**

        * It is type for service code.

        */

        typedef TBuf< KPhoneGsmSsServiceCodeMaxLength > TServiceCode;

        /**

        * It defines structure containing information about a service.

        */

        class TServiceInfo

            {

            public:

                TServiceCode iCode;

                TServiceSyntax iActivation;

                TServiceSyntax iDeactivation;

                TServiceSyntax iInterrogation;

                TServiceSyntax iRegistration;

                TServiceSyntax iErasure;

                TUint iUid;

            };

        // Type for service code array.

        typedef CArrayFixFlat< TServiceInfo > CServiceArray;

        // Owned array of service codes.

        CServiceArray* iArray;

    };

#endif      // CPHONEGSMSSPARSER_H

// End of File