--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/predictivesearch/PcsAlgorithm/Algorithm2/inc/CPcsAlgorithm2Helper.h	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,176 @@
+/*
+* Copyright (c) 2006-2007 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:  Identifies a contact in cache pools
+*
+*/
+
+#ifndef C_PCS_ALGORITHM_2_HELPER
+#define C_PCS_ALGORITHM_2_HELPER
+
+// INCLUDES
+#include <e32cmn.h>
+#include <e32math.h>
+#include <e32hashtab.h>
+
+#include "CPcsPlugin.h"
+#include "CPsData.h"
+#include "CPcsCache.h"
+#include "CPcsKeyMap.h"
+#include "CPcsAlgorithm2FilterHelper.h"
+#include "mdatastoreobserver.h"
+
+// FORWARD DECLARATION
+class CPcsAlgorithm2;
+class CPsData;
+class CPsDataPluginInterface;
+
+// CLASS DECLARATION
+class CPcsAlgorithm2Helper : public CBase
+    {
+public:
+
+    /**
+     * Two phase construction
+     */
+    static CPcsAlgorithm2Helper* NewL(CPcsAlgorithm2* aAlgorithm);
+
+    /**
+     * Destructor
+     */
+    virtual ~CPcsAlgorithm2Helper();
+
+private:
+
+    /**
+     * Filter subset results for ITU-T Mode. Entire search query is 
+     * entered in ITU-T mode.
+     */
+    void FilterResultsL(CPcsAlgorithm2FilterHelper* aAlgorithmFilterHelper,
+                        RPointerArray<CPcsPoolElement>& searchSet,
+                        const TDesC& searchQuery, TBool isSearchInGroup,
+                        RArray<TInt>& aContactsInGroup);
+    /**
+     * Filter subset results for Qwerty Mode. Entire search query is 
+     * entered in Qwerty mode.
+     */
+    void FilterResultsQwertyL(CPcsAlgorithm2FilterHelper* aAlgorithmFilterHelper,
+                              RPointerArray<CPcsPoolElement>& searchSet,
+                              const TDesC& searchQuery, TBool isSearchInGroup,
+                              RArray<TInt>& aContactsInGroup);
+
+    /**
+     * Filter subset results for Mixed mode. Some portion of query is in 
+     * ITU-T mode and some portion in Qwert mode.
+     */
+    void FilterResultsMixedL(CPcsAlgorithm2FilterHelper* aAlgorithmFilterHelper,
+                             RPointerArray<CPcsPoolElement>& searchSet, 
+                             CPsQuery& searchQuery, TBool isSearchInGroup, 
+                             RArray<TInt>& aContactsInGroup);
+
+    /**
+     * Convert the search query to a string.
+     * If the mode is ITU-T, character is converted to numeric.
+     * If the mode is Qwerty, character is retained as is.
+     */
+    void ExtractQueryL(CPsQuery& aPsQuery, TDes& aOutput);
+
+    /**
+     * Convert the input search query to a string.
+     * Mode is referred in the CPsQuery.
+     * If the mode is ITU-T, character is converted to numeric.
+     * If the mode is Qwerty, character is retained as is.
+     */
+    void ExtractQueryL(TDesC& aInput, CPsQuery& aPsQuery, TDes& aOutput);
+
+public:
+
+    /**
+     * Search Function for ITU-T style
+     */
+    void SearchITUL(const CPsSettings& aSettings, CPsQuery& aQuery,
+                    TBool isGroupSearch, RArray<TInt>& aContactsInGroup,
+                    RPointerArray<CPsData>& searchResults,
+                    RPointerArray<CPsPattern>& searchSeqs);
+
+    /**
+     * Search Function for QWERTY style
+     */
+    void SearchQWERTYL(const CPsSettings& aSettings, CPsQuery& aQuery,
+                       TBool isGroupSearch, RArray<TInt>& aContactsInGroup,
+                       RPointerArray<CPsData>& searchResults,
+                       RPointerArray<CPsPattern>& searchSeqs);
+
+    /**
+     * Search Function for mixed style
+     * Some chars are entered in ITU-T and some in QWERTY
+     */
+    void SearchMixedL(const CPsSettings& aSettings, CPsQuery& aQuery,
+                      TBool isGroupSearch, RArray<TInt>& aContactsInGroup,
+                      RPointerArray<CPsData>& searchResults,
+                      RPointerArray<CPsPattern>& searchSeqs);
+
+    /**
+     * Funciton to search matching sequences in the input text
+     */
+    void SearchMatchSeqL(HBufC* aQuery, TDesC& aData,
+                         RPointerArray<TDesC>& aMatchSet, CPsQuery& aPsQuery, 
+                         RArray<TPsMatchLocation>& aMatchLocation);
+
+    /**
+     * Sort search sequences
+     */
+    void SortSearchSeqsL(RPointerArray<TDesC>& aMatchSet);
+
+private:
+
+    /**
+     * Constructs a bit pattern using the required/supported data fields
+     * For example, 6, 4 and 27 are supported fields <-- 00000111
+     *              6 and 4 are required fields      <-- 00000011
+     * Bit pattern returned is 00000011.
+     */
+    TUint8 FilterDataFieldsL(RArray<TInt>& aRequiredDataFields,
+                             RArray<TInt>& aSupportedDataFields);
+private:
+
+    /**
+     * Constructor
+     */
+    CPcsAlgorithm2Helper();
+
+    /**
+     * 2nd phase construtor
+     */
+    void ConstructL(CPcsAlgorithm2* aAlgorithm);
+
+private:
+
+    /**
+     * Pointer to algorithm instance. Not owned.
+     */
+    CPcsAlgorithm2* iAlgorithm;
+
+    /**
+     * Pointer to key map instance. Not owned.
+     */
+    CPcsKeyMap* keyMap;
+
+    /**
+     * Array of result sets from different data stores.
+     */
+    typedef RPointerArray<CPsData> CPSDATA_R_PTR_ARRAY;
+    RPointerArray<CPSDATA_R_PTR_ARRAY> iSearchResultsArr;
+    };
+
+#endif // C_PCS_ALGORITHM_2_HELPER