multimediacommsengine/mmcesrv/mmcemediamanager/src/mceloglineparser.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:04:58 +0200
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permissions -rw-r--r--
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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:    
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*
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*/
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#include "mceloglineparser.h"
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// -----------------------------------------------------------------------------
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// TMceLogLineParser::TMceLogLineParser
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// -----------------------------------------------------------------------------
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//
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TMceLogLineParser::TMceLogLineParser(
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    const TDesC8& aMessage,
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    TUint aMaxLineLength)
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 : iMaxLineLength(aMaxLineLength),
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   iMessage(aMessage),
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   iCurrentPos(0)
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	{
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	}
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// -----------------------------------------------------------------------------
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// TMceLogLineParser::End
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// -----------------------------------------------------------------------------
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//
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TBool TMceLogLineParser::End()
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	{
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	return (iCurrentPos >= iMessage.Length());
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	}
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// -----------------------------------------------------------------------------
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// TMceLogLineParser::GetLine
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// -----------------------------------------------------------------------------
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//
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TPtrC8 TMceLogLineParser::GetLine()
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	{
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	if (End())
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	    {
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	    return TPtrC8();
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	    }
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    TPtrC8 ptr(iMessage.Mid(iCurrentPos));
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    TUint lineEndOffset = 0;
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    TInt nextLineEndPos = FindNextLineEndPos(ptr,lineEndOffset);
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    TUint length;
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    if (nextLineEndPos == KErrNotFound)
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		{
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        if (ptr.Length() < iMaxLineLength) 
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			{
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            length = ptr.Length();
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			}
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        else
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			{
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            length = iMaxLineLength;
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			}
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		}
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    else
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		{
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        if (nextLineEndPos <= iMaxLineLength)
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			{
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            length = nextLineEndPos;
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            iCurrentPos += lineEndOffset;
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			}
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        else
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			{
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            length = iMaxLineLength;
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			}
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		}
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    iCurrentPos += length;
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    return ptr.Left(length);
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	}
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// -----------------------------------------------------------------------------
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// TMceLogLineParser::FindNextLineEndPos
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// -----------------------------------------------------------------------------
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//
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TInt TMceLogLineParser::FindNextLineEndPos(
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    const TDesC8& aDes,
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    TUint& aLineEndOffset)
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	{
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    TInt crPos = aDes.Locate ('\r');
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    TInt lfPos = aDes.Locate ('\n');
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    TInt pos = KErrNotFound;
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    if (!(crPos == KErrNotFound))
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		{
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        aLineEndOffset = 1;
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        if (!(lfPos == KErrNotFound))
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			{
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            if (crPos < lfPos)
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				{
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                if (crPos+1 == lfPos) aLineEndOffset = 2;
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                pos = crPos;
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				}
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            else
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				{
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                pos = lfPos;
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				}
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			}
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        else
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			{
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            pos = crPos;
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			}
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		}
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    else
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parents:
diff changeset
   118
		{
1bce908db942 Revision: 201003
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parents:
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   119
        if (!(lfPos == KErrNotFound))
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parents:
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   120
			{
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parents:
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   121
            aLineEndOffset = 1;
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parents:
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   122
            pos = lfPos;
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parents:
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   123
			}
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parents:
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   124
		}
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parents:
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   125
    return pos;
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parents:
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   126
	}