/*

* Copyright (c) 2004-2008 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: 

*

*/

using System;

using System.IO;

using System.Collections.Generic;

using System.Text;

using System.Text.RegularExpressions;

using SymbianStructuresLib.Debug.Symbols;

using SymbianSymbolLib.SourceManagement.Source;

using SymbianSymbolLib.SourceManagement.Provisioning;

using SymbianUtils;

using SymbianUtils.FileTypes;

using SymbianUtils.Tracer;

namespace SLPluginMap.Reader.RVCT

{

    internal class RVCTSymbolCreator

	{

		#region Enumerations

		public enum TType

		{

			EUnknown = 0,

			EARMCode,

			EThumbCode,

			EData,

			ENumber,

			ESection

		}

		#endregion

        #region Constructors

        public RVCTSymbolCreator( MapReader aReader, SymbolCollection aCollection )

		{

            iReader = aReader;

            iCollection = aCollection;

		}

		#endregion

		#region Properties

		#endregion

		#region API

		public Symbol Parse( string aLine )

		{

            Symbol ret = null;

            //

            Match m = KMapParserRegex.Match( aLine );

            if ( m.Success )

            {

                GroupCollection groups = m.Groups;

                //

                uint globalBaseAddress = iReader.GlobalBaseAddress;

                string typeString = groups[ "Type" ].Value;

                //

                string objectName = groups[ "Binary" ].Value;

                uint size = uint.Parse( groups[ "Size" ].Value );

                string symbol = groups[ "Function" ].Value;

                uint offsetAddress = uint.Parse( groups[ "Address" ].Value, System.Globalization.NumberStyles.HexNumber ) - globalBaseAddress;

                TSymbolType type = TypeByString( typeString );

                //

                ret = Symbol.New( iCollection );

                ret.OffsetAddress = offsetAddress;

                ret.Size = size;

                ret.Object = objectName;

                ret.Name = symbol;

                ret.Type = type;

                TSymbolType tt = ret.Type;

                // If the MAP file indicated thumb code then ensure our symbol library agrees.

                if ( typeString == "Thumb Code" )

                {

                    System.Diagnostics.Debug.Assert( ret.InstructionSet == SymbianStructuresLib.Arm.TArmInstructionSet.ETHUMB );

                }

            }

			//

            return ret;

		}

        #endregion

        #region Internal constants

        // <summary>

        //  Regular expression built for C# on: Fri, Aug 15, 2008, 11:19:15 AM

        //  Using Expresso Version: 3.0.2766, http://www.ultrapico.com

        //  

        //  A description of the regular expression:

        //  

        //  Match expression but don't capture it. [\s+]

        //      Whitespace, one or more repetitions

        //  [Function]: A named capture group. [.+?]

        //      Any character, one or more repetitions, as few as possible

        //  Match expression but don't capture it. [\s+]

        //      Whitespace, one or more repetitions

        //  0x

        //      0x

        //  [Address]: A named capture group. [[A-Fa-f0-9]{8}]

        //      Any character in this class: [A-Fa-f0-9], exactly 8 repetitions

        //  Match expression but don't capture it. [\s+]

        //      Whitespace, one or more repetitions

        //  [Type]: A named capture group. [(?:Data|Section|Number|ARM Code|Thumb Code)]

        //      Match expression but don't capture it. [Data|Section|Number|ARM Code|Thumb Code]

        //          Select from 5 alternatives

        //              Data

        //                  Data

        //              Section

        //                  Section

        //              Number

        //                  Number

        //              ARM Code

        //                  ARM

        //                  Space

        //                  Code

        //              Thumb Code

        //                  Thumb

        //                  Space

        //                  Code

        //  Match expression but don't capture it. [\s+]

        //      Whitespace, one or more repetitions

        //  [Size]: A named capture group. [\d+]

        //      Any digit, one or more repetitions

        //  Match expression but don't capture it. [\s+]

        //      Whitespace, one or more repetitions

        //  [Binary]: A named capture group. [.+]

        //      Any character, one or more repetitions

        //  

        //

        // </summary>

        private static readonly Regex KMapParserRegex = new Regex(

              "(?:\\s*)(?<Function>.+?)(?:\\s+)0x(?<Address>[A-Fa-f0-9]{8})"+

              "(?:\\s+)(?<Type>(?:Data|Section|Number|ARM Code|Thumb Code))"+

              "(?:\\s+)(?<Size>\\d+)(?:\\s+)(?<Binary>.+)",

            RegexOptions.IgnoreCase

            | RegexOptions.Singleline

            | RegexOptions.Compiled

            );

        #endregion

		#region Internal methods

        private static TSymbolType TypeByString( string aTypeAsString )

        {

            TSymbolType ret = TSymbolType.EUnknown;

            //

            if ( aTypeAsString == "ARM Code" )

                ret = TSymbolType.ECode;

            else if ( aTypeAsString == "Thumb Code" )

                ret = TSymbolType.ECode;

            else if ( aTypeAsString == "Section" )

                ret = TSymbolType.ESection;

            else if ( aTypeAsString == "Data" )

                ret = TSymbolType.EData;

            else if ( aTypeAsString == "Number" )

                ret = TSymbolType.ENumber;

            //

            return ret;

        }

        #endregion

        #region Data members

        private readonly MapReader iReader;

        private readonly SymbolCollection iCollection;

		#endregion

	}

}