--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/telephonyserverplugins/multimodetsy/hayes/SCHAT.CPP	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,217 @@
+// Copyright (c) 1997-2009 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:
+// Send/Expect Algorithms
+// 
+//
+
+#include "ATSTD.H"
+#include "SCHAT.H"
+#include "mSLOGGER.H"
+
+CCommChatString* CCommChatString::NewL(const TDesC8& aDes, TBool aIsPartialLine)
+	{
+	CCommChatString* cs = new (ELeave) CCommChatString;
+	CleanupStack::PushL(cs);
+	cs->CreateL(aDes, aIsPartialLine);
+	CleanupStack::Pop();
+	return cs;
+	}
+
+CCommChatString::CCommChatString()
+	{
+	}
+
+CCommChatString::~CCommChatString()
+	{
+	}
+
+void CCommChatString::CreateL(const TDesC8& aDes, TBool aIsPartialLine)
+	{
+	iIsPartialLine = aIsPartialLine;
+	iMatch.Set(aDes);
+	}
+
+//
+// CCommChatter
+//
+CCommChatter::CCommChatter(MCommChatNotify* aNotify, TInt aPriority)
+	: CTimer(aPriority), iNotify(aNotify)
+	{
+	CActiveScheduler::Add(this);
+	iList.SetOffset(_FOFF(CCommChatString,iLink));
+	}
+
+CCommChatter::~CCommChatter()
+	{
+	DeleteAllAndStop();
+	User::Free(iBuffer);
+	}
+
+void CCommChatter::CreateL(TInt aBufSize)
+	{
+	CTimer::ConstructL();
+	iBuffer = (TText8*)User::AllocL(aBufSize);
+	iBufferEnd = (iBuffer+aBufSize)-1;
+	ClearBuffer();
+	}
+
+void CCommChatter::ClearBuffer()
+//
+// Empty history
+//
+	{
+	iLastChar = iBuffer;
+	iLineStart = iBuffer;
+	iInDelimiter = ETrue;	// as though the last character was the end of a line
+	}
+
+void CCommChatter::ClearCurrentLine()
+//
+// Remove current line, which is always at the end of the buffer
+//
+	{
+	iLastChar = iLineStart;
+	iInDelimiter = ETrue;	// as though the last character was the end of a line
+	}
+
+TPtrC8 CCommChatter::Buffer() const
+	{
+	return TPtrC8(iBuffer, iLastChar-iBuffer);
+	}
+
+TPtrC8 CCommChatter::CurrentLine() const
+	{
+	TInt len=iLastChar-iLineStart;
+	if (len>0 && iInDelimiter)
+		len-=1;
+	return TPtrC8(iLineStart, len);
+	}
+
+void CCommChatter::AddCharL(TText8 aChar)
+//
+// Add a character to the history buffer
+// Scan all strings to find any matches that may
+// be completed.
+//
+	{
+	// Prevent reading of multiple delimiters into buffer
+	if (iInDelimiter && (aChar == '\r' || aChar == '\n'))
+		return;
+
+	*iLastChar++=aChar;
+	if (iLastChar>=iBufferEnd)
+		{
+		iLastChar = iBufferEnd; // Discarding characters at this point
+		}
+
+	if (aChar=='\r' || aChar=='\n')
+		{
+		if (iInDelimiter)
+			return;		// still in delimiting sequence
+		iInDelimiter=ETrue;
+		}
+	else
+		{
+		if (iInDelimiter)
+			{
+			iInDelimiter=EFalse;
+			iLineStart=iLastChar-1;
+			}
+		if (iPartLineMatchers==0)
+			return;		// wait for end of line before trying to match
+		}
+
+	// Scan for matching expect string
+
+	TPtrC8 line(CurrentLine());
+	CCommChatString* cs;
+	TDblQueIter<CCommChatString> iter(iList);
+
+	if (iInDelimiter)
+		{
+		// Simple match at end of line - test all strings
+		while (cs = iter++, cs!=NULL)
+			{
+			if (line.Match(cs->iMatch)==0)
+				{
+				LOGTEXT2(_L8("SChat:\tFound match against =>%S<"), &cs->iMatch);
+				iNotify->ChatStringMatchL(cs);
+				cs = iter;	// In case user removed cs;
+				}
+			}
+		}
+	else
+		{
+		// partial match - use only selected matchers
+		while (cs = iter++, cs!=NULL)
+			{
+			if (cs->iIsPartialLine && line.Match(cs->iMatch)==0)
+				{
+				LOGTEXT2(_L8("SChat:\tFound match against partial line =>%S<"), &cs->iMatch);
+				iNotify->ChatStringMatchL(cs);
+				cs = iter;	// In case user removed cs;
+				}
+			}
+		}
+	}
+
+void CCommChatter::RunL()
+	{
+	iNotify->ChatTimeout();
+	}
+
+CCommChatString* CCommChatter::AddStringL(const TDesC8& aString, TBool aPartLine)
+	{
+	CCommChatString* chatString=CCommChatString::NewL(aString,aPartLine);
+	iList.AddLast(*chatString);
+	if (aPartLine)
+		iPartLineMatchers+=1;
+	return chatString;
+	}
+
+void CCommChatter::RemoveString(CCommChatString* aString)
+	{
+	_LIT(KCCommChatterPanic, "GSMTSY-CHAT");
+	aString->iLink.Deque();
+	if (aString->iIsPartialLine)
+		{
+		iPartLineMatchers-=1;
+		__ASSERT_ALWAYS(iPartLineMatchers>=0, User::Panic(KCCommChatterPanic,1));
+		}
+	}
+
+void CCommChatter::DeleteAllAndStop()
+	{
+	StopTimer();
+	CCommChatString* cs;
+	while (!iList.IsEmpty())
+		{
+		cs = iList.First();
+		RemoveString(cs);
+		delete cs;
+		}
+	iPartLineMatchers=0;
+	}
+
+void CCommChatter::StartTimer(const TTimeIntervalMicroSeconds32 aTimeout)
+	{
+	if (IsActive())
+		Cancel();
+	After(aTimeout);
+	}
+
+void CCommChatter::StopTimer()
+	{
+	Cancel();
+	}