// parser.h+
−
// +
−
// Copyright (c) 2006 - 2010 Accenture. All rights reserved.+
−
// This component and the accompanying materials are made available+
−
// under the terms of the "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:+
−
// Accenture - Initial contribution+
−
//+
−
+
−
#ifndef __PARSER_H__+
−
#define __PARSER_H__+
−
+
−
#include <e32base.h>+
−
#include "error.h"+
−
#include "pipe_line.h"+
−
+
−
class CLexer;+
−
class CParser;+
−
+
−
+
−
class MParserObserver+
−
	{+
−
public:+
−
	virtual void HandleParserComplete(CParser& aParser, const TError& aError) = 0;+
−
	virtual void HandleParserExit(CParser& aParser);+
−
	virtual void AboutToExecuteLine(const TDesC& aOrignalLine, const TDesC& aExpandedLine);+
−
	virtual void LineReturned(TInt aError);+
−
	};+
−
+
−
+
−
class CParser : public CBase, public MPipeLineObserver+
−
	{+
−
public:+
−
	enum TMode+
−
		{+
−
		ENormal				= 0x00000000,+
−
		EKeepGoing			= 0x00000001,+
−
		EDebug				= 0x00000002,+
−
		EExportLineNumbers	= 0x00000004+
−
		};+
−
public:+
−
	static CParser* NewL(TUint aMode, const TDesC& aDes, RIoSession& aIoSession, RIoReadHandle& aStdin, RIoWriteHandle& aStdout, RIoWriteHandle& aStderr, IoUtils::CEnvironment& aEnv, CCommandFactory& aFactory, MParserObserver* aObserver, TInt aStartingLineNumber = 1);+
−
	static CParser* NewL(TUint aMode, RIoReadHandle& aSourceHandle, RIoSession& aIoSession, RIoReadHandle& aStdin, RIoWriteHandle& aStdout, RIoWriteHandle& aStderr, IoUtils::CEnvironment& aEnv, CCommandFactory& aFactory, MParserObserver* aObserver);+
−
	~CParser();+
−
	void Start();+
−
	void Start(TBool& aIsForeground);+
−
	void Kill();+
−
	TInt Suspend();+
−
	TInt Resume();+
−
	TInt BringToForeground();+
−
	void SendToBackground();+
−
	TInt Reattach(RIoEndPoint& aStdinEndPoint, RIoEndPoint& aStdoutEndPoint, RIoEndPoint& aStderrEndPoint);+
−
	TBool IsDisownable() const;+
−
	void Disown();+
−
private:+
−
	enum TCondition+
−
		{+
−
		ENone,+
−
		EAnd,+
−
		EOr,+
−
		EAndOr+
−
		};+
−
private:+
−
	CParser(TUint aMode, RIoSession& aIoSession, RIoReadHandle& aStdin, RIoWriteHandle& aStdout, RIoWriteHandle& aStderr, IoUtils::CEnvironment& aEnv, CCommandFactory& aFactory, MParserObserver* aObserver, TInt aStartingLineNumber=1);+
−
	void ConstructL(const TDesC* aDes, RIoReadHandle* aSourceHandle);+
−
	void CreateNextPipeLine(TBool* aIsForeground);+
−
	void CreateNextPipeLineL(TBool* aIsForeground);+
−
	void FindNextPipeLineL(TPtrC& aData, TCondition& aCondition, TBool& aReachedLineEnd);+
−
	HBufC* ExpandVariablesLC(const TDesC& aData);+
−
	void SkipLineRemainderL();+
−
	void DoSkipLineRemainderL();+
−
	void SkipToEnd();+
−
	TBool MoreSourceData() const;+
−
	void HandlePipeLineCompleteL(CPipeLine& aPipeLine, const TError& aError);+
−
	static TInt CompletionCallBack(TAny* aSelf);+
−
	static TInt NextCallBack(TAny* aSelf);+
−
	static TInt ExitCallBack(TAny* aSelf);+
−
private:	// From MPipeLineObserver.+
−
	virtual void HandlePipeLineComplete(CPipeLine& aPipeLine, const TError& aError);+
−
private:+
−
	const TUint iMode;+
−
	TCondition iCondition;+
−
	RIoSession& iIoSession;+
−
	RIoReadHandle iStdin;+
−
	RIoWriteHandle iStdout;+
−
	RIoWriteHandle iStderr;+
−
	IoUtils::CEnvironment& iEnv;+
−
	CCommandFactory& iFactory;+
−
	CLexer* iLexer1;	///< Used to find a "pipe-line's worth" of data in iData.+
−
	CLexer* iLexer2;	///< Used to parse a particular pipe-line (after its variables have been expanded).+
−
	MParserObserver* iObserver;+
−
	CPipeLine* iForegroundPipeLine;+
−
	RPointerArray<CPipeLine> iBackgroundPipeLines;+
−
	TError iCompletionError;+
−
	CAsyncCallBack* iCompletionCallBack;+
−
	CAsyncCallBack* iNextPipeLineCallBack;+
−
	CAsyncCallBack* iExitCallBack;+
−
	TBool iAbort;+
−
	TInt iNextLineNumber;+
−
	TBool iOwnsIoHandles;+
−
	};+
−
+
−
+
−
#endif // __PARSER_H__+
−