--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianUtils/Utilities/TracePrefixAnalyser.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,131 @@
+/*
+* Copyright (c) 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:
+*
+*/
+using System;
+using System.IO;
+using System.Text;
+
+namespace SymbianUtils
+{
+	public class TracePrefixAnalyser
+	{
+		#region Constructors
+		public TracePrefixAnalyser()
+		{
+		}
+		#endregion
+
+		#region API
+		public bool CleanLine( ref string aLine )
+		{
+			bool matched = false;
+			string prefix = IdentifyTracePrefixFromLine( aLine );
+			//
+			if	( prefix.Length > 0 )
+			{
+				int prefixPos = aLine.IndexOf( prefix );
+				aLine = aLine.Substring( prefixPos + prefix.Length );
+				matched = true;
+			}
+			//
+			return matched;
+		}
+
+		public StringBuilder CleanFile( string aFileName )
+		{
+			StringBuilder lines = new StringBuilder();
+			//
+			using( StreamReader reader = new StreamReader( aFileName ) )
+			{
+				string line = reader.ReadLine();
+				while( line != null )
+				{
+					CleanLine( ref line );
+					lines.Append( line + System.Environment.NewLine );
+					//
+					line = reader.ReadLine();
+				}
+			}
+			//
+			return lines;
+		}
+
+		public string IdentifyTracePrefixFromLine( string aLine )
+		{
+			string prefix = string.Empty;
+			//
+            if ( aLine.IndexOf( KFinalPrefix ) >= 0 )
+            {
+                prefix = KFinalPrefix;
+            }
+			//
+			return prefix;
+		}
+
+		public string IdentifyTracePrefix( string aFileName )
+		{
+			string prefix = string.Empty;
+			//
+			try
+			{
+				using( StreamReader reader = new StreamReader( aFileName ) )
+				{
+					int lineCounter = 0;
+					string line = string.Empty;
+					//
+					while( lineCounter < KNumberOfLinesToCheck && line != null )
+					{
+						try
+						{
+							line = reader.ReadLine();
+							//
+                            if ( line != null )
+                            {
+                                string tmp = IdentifyTracePrefixFromLine( line );
+                                if ( tmp.Length > 0 )
+                                {
+                                    prefix = tmp;
+                                    break;
+                                }
+                            }
+						}
+						catch(Exception)
+						{
+							line = null;
+						}
+                        //
+                        ++lineCounter;
+					}
+				}
+			}
+			catch( Exception )
+			{
+			}
+			//
+			return prefix;
+		}
+		#endregion
+
+		#region Internal constants
+		private const int KNumberOfLinesToCheck = 500;
+		#endregion
+
+		#region Data members
+		private const int KLineLookAheadCount = 200;
+		private const string KFinalPrefix = "msg:";
+		#endregion
+	}
+}