--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lowlevellibsandfws/apputils/multipartparser/src/qpcodec.cpp	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,162 @@
+// Copyright (c) 2008-2009 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 FILES
+// 
+//
+
+#include <e32std.h>
+#include <bafl/qpcodec.h>
+
+/**
+Decode the string
+@param aSrcString source string
+@param rDestString Destination string
+@return  KErrNone  if decode is complete
+@return  KErrCorrupt if string is not QuotedPrintable compliant
+*/
+EXPORT_C TInt QuotedPrintableCodec::Decode( const TDesC8& aSrcString, TDes8& rDestString )
+	{
+	
+#ifdef _DEBUG
+	TInt KPanicInvalidSMTPLine = 6;
+	_LIT(KDllName,"MultipartParser");
+#endif
+	
+	const TUint8 KImcvSP			= ' ';
+	const TUint8 KImcvCR			= '\r';
+	const TUint8 KImcvLF			= '\n';	
+	const TUint8 KImcvTab			= '\t';
+	const TUint8 KImcvEquals		= '=';
+	TUint8 qpCharacter = KImcvEquals;
+	
+	TInt error = KErrNone;
+	
+	__ASSERT_DEBUG(aSrcString.Length(), User::Panic( KDllName ,KPanicInvalidSMTPLine));
+
+	rDestString = KNullDesC8;
+
+	TPtrC8 source( aSrcString.Ptr(), aSrcString.Length() );
+	const TUint8* pSource = source.Ptr();
+	const TUint8* pEnd = pSource+aSrcString.Length();
+	
+	// find out if this is a blank line, if so then we'll add a paragraph delimiter instead
+	// assume it's blank and then look for non-blank characters
+	// avoid the CRLF at the end of the line (we know it's there thanks to the assertion above)
+
+	TBool blankLine = ETrue; 
+	while (pSource < pEnd-2) 
+		{
+		if (*pSource!=KImcvSP && *pSource!=KImcvTab)
+			{
+			blankLine = EFalse;
+			break;
+			}
+		pSource++;
+		}
+
+	if ( blankLine )
+		{
+		rDestString.Copy( aSrcString );
+		return KErrNone;
+		}
+
+	TInt outputLength=0;
+	TUint8 loBits;
+	TUint8 hiBits;
+	TUint8 asciiValue;
+	pSource = source.Ptr();	// reset to start of source data
+	const TUint8 zero = '0';
+	const TUint8 alphaAdjust = 55;  // 'A' is ascii 65 so we need to subtract 55 from 
+									// alphabetical hex digits to get their numeric value
+	while( pSource < pEnd )
+		{
+		if (*pSource != qpCharacter )
+			{
+			//  Quoted character or Attachment bound, just bung it on & move to the next one
+			// *ptr++ = *pSource;
+			outputLength++;
+			rDestString.Append( *pSource );
+			}
+		else	// check for encoded character
+			{
+			// start looking at the next two characters, if they are there.
+
+			if ( pSource+2 < pEnd )
+				{
+				pSource++;
+
+				// check for '=' at EOL => this is a soft break, so remove it
+				if (*pSource != KImcvCR) 
+					{
+					if(*pSource != KImcvLF) 
+						{
+					 	 // now decode hex value into ASCII code : hi-order bits come first
+						 hiBits = (TUint8)(0x0F & (IsDigit( *pSource ) ? (TUint8)(*pSource-zero) : (TUint8)(*pSource-alphaAdjust)));
+						 pSource++;
+						 loBits = (TUint8)(0x0F & (IsDigit( *pSource ) ? (TUint8)(*pSource-zero) : (TUint8)(*pSource-alphaAdjust)));
+						 asciiValue = (TUint8)( (hiBits<<4) + loBits);
+						 // bung the character thus formed onto the decoded string
+						 rDestString.Append( asciiValue );
+						 // *ptr++ = asciiValue;
+						 outputLength++;
+						}
+					}
+				else
+					{
+					pSource++;
+					if(*pSource != KImcvLF)
+						{
+						error=KErrCorrupt;
+						pSource-=2;
+						rDestString.Append( *pSource );
+						pSource++;
+						rDestString.Append( *pSource );
+						pSource++;
+						outputLength+=2;
+						}
+					}
+				}
+			else
+				{
+				// copy the rest of the data & use up the input string in the process.
+
+				while (pSource < pEnd)
+					{
+					error=KErrCorrupt; // not QP compliant
+					//*ptr++ = *pSource++;
+					outputLength++;
+					rDestString.Append( *pSource );
+					pSource++;
+					}
+				}
+			} // check for '=' char
+		
+		pSource++;  // next source charactery
+	} // while
+
+	rDestString.SetLength(outputLength);
+
+	return error;
+	}
+
+/**
+Check for digit
+@param aChar charcter to be check
+@return  ETrue if passed charcter is digit
+@return  EFalse if passed charcter is not digit
+*/	
+TBool QuotedPrintableCodec::IsDigit( TChar aChar )
+{
+	return ( (aChar >= '0') && (aChar <= '9') );
+}