cryptomgmtlibs/securityutils/source/sectcbutil/miscutil.cpp
changeset 0 2c201484c85f
child 8 35751d3474b7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptomgmtlibs/securityutils/source/sectcbutil/miscutil.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,84 @@
+/*
+* 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 the License "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: 
+* Contains miscellaneous utility functions that can be used by any code in security component
+*
+*/
+
+
+
+
+/**
+ @file
+*/
+
+#include "miscutil.h"
+
+namespace MiscUtil
+{
+/*
+ * Function used to extract lines of text from a buffer. Note that this only works for non-unicode text. It skips
+ * over blank lines and the characters '\n' or '\r' are treated as end-of-line markers.
+ *
+ * @param aBuffer		Input buffer
+ * @param aPos		Starting index into aBuffer
+ * @return			ETrue if a line was successfully extracted from the buffer, EFalse if end of buffer reached
+ */
+
+EXPORT_C TBool ReadNonEmptyLineL(const TDesC8& aBuffer, TInt& aPos, TPtrC8& aLine)
+	{
+	TBool lineIdentified = ETrue;
+	aLine.Set(NULL, 0);
+
+	TInt bufferLength = aBuffer.Length();
+	__ASSERT_ALWAYS(aPos >=0 && aPos <= bufferLength, User::Leave(KErrArgument));
+
+	// Skip blank lines
+	while (aPos < bufferLength)
+		{
+		TChar  c = aBuffer[aPos];
+		if (c != '\r' && c != '\n')
+			{
+			break;
+			}
+		aPos++;
+		}
+
+	// Find the position of the next delimter
+	TInt endPos = aPos;
+	while (endPos < bufferLength)
+		{
+		TChar c = aBuffer[endPos];
+		if (c == '\n' || c == '\r') 	// Find end of line
+			{
+			break;
+			}
+		endPos++;
+		}
+
+	if (endPos != aPos)
+		{
+		TInt tokenLen = endPos - aPos;
+		aLine.Set(&aBuffer[aPos], tokenLen);
+		}
+	else
+		{
+		lineIdentified = EFalse; // End of buffer
+		}
+
+	aPos = endPos;
+	return lineIdentified;
+	}
+
+}	// namespace MiscUtil