// Copyright (c) 2005-2009 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:

//

#include "scriptfileprocessor.h"

const TChar KDelimiter=0x0A;

//

//CScriptFileProcessor

//

CScriptFileProcessor* CScriptFileProcessor::NewLC(const TDesC& aScriptFile)

	{

	CScriptFileProcessor* self=new (ELeave)CScriptFileProcessor;

	CleanupStack::PushL(self);

	self->ConstructL(aScriptFile);

	return self;

	}

CScriptFileProcessor* CScriptFileProcessor::NewL(const TDesC& aScriptFile)

	{

	CScriptFileProcessor* self=CScriptFileProcessor::NewLC(aScriptFile);

	CleanupStack::Pop(self);

	return self;

	}

void CScriptFileProcessor::ConstructL(const TDesC& aScriptFile)

	{

	User::LeaveIfError(iFSession.Connect());

    User::LeaveIfError(iFile.Open(iFSession, aScriptFile, EFileRead));

    iFileReadStream.Attach(iFile);   

	}

CScriptFileProcessor::CScriptFileProcessor()

	{

	}	

CScriptFileProcessor::~CScriptFileProcessor()

	{

	iFile.Close();

	iFileReadStream.Close();

	iFSession.Close();

	}

//

//DataDirection

//

CScriptFileProcessor::TDataDirection CScriptFileProcessor::DataDirection() const

	{

	return iDataDirection; 	

	}

//

//ProcessLine

//

 TInt CScriptFileProcessor::ProcessLine(TDes8& aLine)

	{

	//get the direction of the data

	const TInt KSpecifierLength=3;	

	_LIT8(KFromServer,"<< ");

	_LIT8(KFromClient,">> ");

	//if the data is from the server then the specifier should be at the begining of the line

	TInt pos;

	pos=aLine.Find(KFromServer);

	if(pos==0)

		{

		iDataDirection=EFromServer;	

		}

	else 

		{

		//if the data is from the client then the specifier should be at the begining of the line

		pos=aLine.Find(KFromClient);

		if(pos==0)

			{

			iDataDirection=EFromClient;	

			}	

		else

			{

			//there has been an error, the spefifier was not found

			return KErrNotFound;

			}

		} 

	//trim the specifier from the start of the line	

	aLine=aLine.Right(aLine.Length()-KSpecifierLength);

	//trim off trailing \r\n

	aLine.TrimRight();

	return KErrNone;

	}

//

//ReadLine

//

TInt CScriptFileProcessor::ReadLine(TDes8& aLine)

 {

	aLine.Zero();

	//read the line

 	TRAPD(err, iFileReadStream.ReadL(aLine, KDelimiter));

 	if (err != KErrNone)

    	{

     	return err; 

     	} 

    //process the line

    err=ProcessLine(aLine);

    // Haven't reached end of the file yet

 	return err; 

 }