--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymBuildParsingLib/Lexer/SymLexerWorkerLine.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,125 @@
+/*
+* 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.Text;
+using System.Collections;
+using SymBuildParsingLib.Lexer;
+using SymBuildParsingLib.Utils;
+
+namespace SymBuildParsingLib.Lexer
+{
+	public class SymLexerWorkerLine : SymLexerWorker, ISymLexerPositionProvider
+	{
+		#region Constructors & destructor
+		public SymLexerWorkerLine( SymLexer aLexer )
+			: base( aLexer )
+		{
+		}
+		#endregion
+
+		#region Properties
+		public char LastCharacter
+		{
+			get { return iLastCharacter; }
+			set { iLastCharacter = value; }
+		}
+		#endregion
+
+		#region SymLexerWorker Members
+		public override bool ProcessCharacter( char aCharacter )
+		{
+			bool consumed = false;
+
+			// At the end of a line if we see 0x0A or then 0x0D and the next character is not 0x0A
+			if	( aCharacter == KSymLineFeed || aCharacter == KSymCarriageReturn )
+			{
+				if	( aCharacter == KSymLineFeed )
+				{
+					// This is definitely the end of a line. If the last
+					// character was a carriage return, then we mark
+					// the start of the end-of-line as the previous
+					// character. Otherwise, its this one.
+					AddNewEndOfLinePosition();
+				}
+				else
+				{
+					// Its a CR (0x0D) but it might be followed by a LF
+					// so don't do anything yet.
+					LastCharacter = aCharacter;
+				}
+
+				consumed = true;
+			}
+			else if ( LastCharacter == KSymCarriageReturn )
+			{
+				// The current character is not a line feed, but the last
+				// char was a carriage return => implicitly, the last
+				// character was an end of line.
+				AddNewEndOfLinePosition();
+			}
+			else
+			{
+				iCurrentPosition.Inc();
+				LastCharacter = aCharacter;
+			}
+
+			return consumed;
+		}
+
+		public override void StartedNewLine( SymTextPosition aEOLPosition )
+		{
+		}
+		#endregion
+
+		#region ISymLexerPositionProvider Members
+		public SymTextPosition CurrentPosition
+		{
+			get
+			{
+				return new SymTextPosition( iCurrentPosition );
+			}
+		}
+
+		public void SetObserver( ISymLexerPositionObserver aObserver )
+		{
+		}
+		#endregion
+
+		#region Internal methods
+		private void AddNewEndOfLinePosition()
+		{
+			iLineEndingPositions.Add( iCurrentPosition );
+			Lexer.HandleEndOfLineDetected( iCurrentPosition );
+
+			iCurrentPosition.NewLine();
+			iLastCharacter = '\0';
+		}
+		#endregion
+
+		#region Internal constants
+		const int KSymLineFeed = 0xA;
+		const int KSymCarriageReturn = 0xD;
+		#endregion
+
+		#region Data members
+		private char iLastCharacter = '\0';
+		private ArrayList iLineEndingPositions = new ArrayList( 1024 );
+		private SymTextPosition iCurrentPosition = new SymTextPosition();
+		#endregion
+	}
+}