--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contextframework/cfw/inc/basicoperationsplugin/cfcontextoperationutils.h	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,139 @@
+/*
+* Copyright (c) 2004-2008 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:  CFContextOperationUtils class declaration.
+*
+*/
+
+
+
+#ifndef CFCONTEXTOPERATIONUTILS_H
+#define CFCONTEXTOPERATIONUTILS_H
+
+// INCLUDES
+#include <e32base.h>
+
+#include "cfcontextoperation.h"
+
+// FORWARD DECLARATIONS
+class CMDXMLNode;
+
+// CLASS DECLARATION
+
+/**
+*  Context Framework Context Operation utils class.
+*
+*  @lib CFScriptEngine
+*  @since S60 v5.0
+*/
+NONSHARABLE_CLASS( CFContextOperationUtils )
+    {
+public: // Util functions
+
+    /**
+    * Parses data for a comparison operation having two arguments. Iterates
+    * through all siblings so only two nodes are allowed to have real content.
+    * @param aNode is the operation node whose two arguments will be parsed.
+    * @param aContextSource will be set to context source of the contextRef.
+    * @param aContextType will be set to context type of the contextRef.
+    * @param aCompareType will be set to compare type of the comparison.
+    * @param aCompareValue will be set to compare value of the comparison.
+    * @param aContextLevelDelay will be set to the value of context level delay
+    *   attribute if it was present.
+    * @return ETrue if exactly two arguments were found and parsed successfully,
+    *   EFalse otherwise.
+    */
+    static TBool ParseTwoComparisonArgs( CMDXMLNode& aNode,
+            TPtrC& aContextSource,
+            TPtrC& aContextType,
+            CCFContextOperation::TCmpType& aCompareType,
+            TPtrC& aCompareValue,
+            TInt& aContextLevelDelay );
+
+    /**
+    * Parses data from a contextRef xml node.
+    * @param aNode is the node to be parsed.
+    * @param aContextSource will be set to context source of the contextRef.
+    * @param aContextType will be set to context type of the contextRef.
+    * @param aContextValue will be set to context value of the contextRef or
+    *   its' data is cleared if value was not defined by the contextRef.
+    * @param aContextLevelDelay will be set to the value of context level delay
+    *   attribute if it was present.
+    * @return ETrue if context ref was found and at least source and type were
+    *   parsed successfully, EFalse otherwise.
+    */
+    static TBool ParseContextRef( CMDXMLNode& aNode,
+            TPtrC& aContextSource,
+            TPtrC& aContextType,
+            TPtrC& aContextValue,
+            TInt& aContextLevelDelay );
+
+    /**
+    * Parses a script data type definition xml node (e.g. used by comparisons).
+    * @param aNode is the node to be parsed.
+    * @param aCompareType will be set to compare type of the comparison.
+    * @param aCompareValue will be set to compare value of the comparison.
+    * @return ETrue if script data type definition was found and parsed
+    *   successfully, EFalse otherwise.
+    */
+    static TBool ParseComparisonTypeValue( CMDXMLNode& aNode,
+            CCFContextOperation::TCmpType& aCompareType,
+            TPtrC& aCompareValue );
+
+    /**
+    * Gets comparison type for a context operation.
+    * @param aComparisonType is the descriptor defining comparison type.
+    * @return CCFContextOperation::TCmpType comparison type.
+    *   CCFContextOperation::EInvalidCmpType if aComparisonType is unknown.
+    */
+    static CCFContextOperation::TCmpType ComparisonType(
+        const TDesC& aComparisonType );
+
+
+    /**
+    * Parses a descriptor to TTime object.
+    * @param aString is the time in a descriptor.
+    * @return TTime object based on aString.
+    */
+    static TTime StringToTimeL( const TDesC& aString );
+
+    /**
+    * Converts a string to TReal object.
+    * @param aString is the string to convert.
+    * @return TReal object created from aString.
+    */
+    static TReal StringToRealL( const TDesC& aString );
+
+    /**
+    * Converts a string containing latitude and longitude values into two reals.
+    * Note! Unable to handle position values larger than 128 characters.
+    * @param aString is the string containing position of format
+    *   "latitude:longitude".
+    * @param aLatitude will be the latitude extracted from the string.
+    * @param aLongitude will be the longitude extracted from the string.
+    */
+    static void PositionToRealsL( const TDesC& aString,
+            TReal& aLatitude,
+            TReal& aLongitude );
+
+    /**
+    * Converts a string to an integer value.
+    * @param aString is the string to convert to an integer.
+    * @return TInt converted from aString.
+    */
+    static TInt StringToIntL( const TDesC& aString );
+
+    };
+
+
+#endif // CFCONTEXTOPERATIONUTILS_H