--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/src/parser.h	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,103 @@
+// 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 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);
+	~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, const TDesC& aDes, RIoSession& aIoSession, RIoReadHandle& aStdin, RIoWriteHandle& aStdout, RIoWriteHandle& aStderr, IoUtils::CEnvironment& aEnv, CCommandFactory& aFactory, MParserObserver* aObserver);
+	void ConstructL();
+	void CreateNextPipeLine(TBool* aIsForeground);
+	void CreateNextPipeLineL(TBool* aIsForeground);
+	void FindNextPipeLineL(TPtrC& aData, TCondition& aCondition, TBool& aReachedLineEnd);
+	HBufC* ExpandVariablesLC(const TDesC& aData);
+	TInt SkipLineRemainder();
+	void SkipToEnd();
+	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;
+	const TPtrC iData;
+	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__