williamr@2: // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@2: // All rights reserved.
williamr@2: // This component and the accompanying materials are made available
williamr@2: // under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
williamr@2: // which accompanies this distribution, and is available
williamr@2: // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
williamr@2: //
williamr@2: // Initial Contributors:
williamr@2: // Nokia Corporation - initial contribution.
williamr@2: //
williamr@2: // Contributors:
williamr@2: //
williamr@2: // Description:
williamr@2: //
williamr@2: 
williamr@2: #ifndef __DICTIONARYCODEPAGE_H__
williamr@2: #define __DICTIONARYCODEPAGE_H__
williamr@2: 
williamr@2: #include <e32base.h>
williamr@2: #include <stringpool.h>
williamr@2: 
williamr@2: 
williamr@2: namespace Xml
williamr@2: {
williamr@2: 
williamr@2: class CDictionaryCodePage : public CBase
williamr@2: /**
williamr@2: The CDictionaryCodePage, represents a single numeric code page for Elements, Attributes, and
williamr@2: AttributeValues.
williamr@2: 
williamr@2: This object refers to the appropriate string pool tables, and creates mappings between
williamr@2: strings in these tables and their token values.
williamr@2: 
williamr@2: Used mainly for wbxml document parsing, and allows for the quick comparison of strings.
williamr@2: 
williamr@2: This object is associated with a string dictionary via a user defined class.
williamr@2: 
williamr@2: @see RStringPool
williamr@2: @see CStringDictionary
williamr@2: 
williamr@2: @publishedPartner
williamr@2: @released
williamr@2: */
williamr@2: 	{
williamr@2: 
williamr@2: public:
williamr@2: 
williamr@2: 	enum TStringType
williamr@2: /**
williamr@2: A structure for describing the types of string pool table associated with this class.
williamr@2: */
williamr@2: 		{
williamr@2: 			EStringTypeElement,
williamr@2: 			EStringTypeAttribute,
williamr@2: 			EStringTypeAttributeValue
williamr@2: 		};
williamr@2: 
williamr@2: 
williamr@2: public:
williamr@2: 
williamr@2: 	IMPORT_C static CDictionaryCodePage* NewL(const TStringTable* aElementTable, 
williamr@2: 											  const TStringTable* aAttributeTable, 
williamr@2: 											  const TStringTable* aValueTable, 
williamr@2: 											  TUint8 aCodePage);
williamr@2: 
williamr@2: 	IMPORT_C virtual ~CDictionaryCodePage();
williamr@2: 	
williamr@2: 	IMPORT_C const TStringTable* StringTable(TStringType aType) const;
williamr@2: 	IMPORT_C TUint8 CodePage() const;
williamr@2: 
williamr@2: 	IMPORT_C TInt StringPoolIndexFromToken(TInt aToken, TStringType aType) const;
williamr@2: 	IMPORT_C TInt TokenFromStringPoolIndex(TInt aIndex, TStringType aType) const;
williamr@2: 	
williamr@2: 	IMPORT_C void ConstructIndexMappingL(const TInt* aStringPoolToTokenMapping, TStringType aType);
williamr@2: 
williamr@2: private:
williamr@2: 
williamr@2: 	CDictionaryCodePage(const TStringTable* aElementTable, const TStringTable* aAttributeTable, 
williamr@2: 		                const TStringTable* aValueTable, TUint8 aCodePage);
williamr@2: 
williamr@2: 	CDictionaryCodePage(const CDictionaryCodePage& aOriginal);
williamr@2: 	CDictionaryCodePage& operator=(const CDictionaryCodePage& aRhs);
williamr@2: 
williamr@2: private:
williamr@2: 
williamr@2: 	struct TStringPoolTokenMapping
williamr@2: /**
williamr@2: The TStringPoolTokenMapping struct stores a mapping between table index and 
williamr@2: token values for a single string entry.
williamr@2: */
williamr@2: 		{
williamr@2: 		TInt iTokenValue;
williamr@2: 		TInt iTableIndex;
williamr@2: 		};
williamr@2: 
williamr@2: 	static TInt CompareStringPoolTokenMappingTable(const TStringPoolTokenMapping& aFirst, 
williamr@2: 		                                           const TStringPoolTokenMapping& aSecond);
williamr@2: private:
williamr@2: 
williamr@2: /**
williamr@2: Pointer to the static Element string pool table.
williamr@2: We do not own this.
williamr@2: */	
williamr@2: 	const TStringTable*				iElementTable;
williamr@2: 
williamr@2: /**
williamr@2: Pointer to the static Attribute string pool table.
williamr@2: We do not own this.
williamr@2: */	
williamr@2: 	const TStringTable*				iAttributeTable;
williamr@2: 
williamr@2: /**
williamr@2: Pointer to the static AttributeValue string pool table.
williamr@2: We do not own this.
williamr@2: */	
williamr@2: 	const TStringTable*				iValueTable;
williamr@2: 
williamr@2: /**
williamr@2: Array to obtain a Element Token from String Pool index.
williamr@2: */	
williamr@2: 	RArray<TInt>					iElementStringPoolIndexToToken;
williamr@2: 
williamr@2: /**
williamr@2: Array to obtain a Element String Pool Index from a token.
williamr@2: */	
williamr@2: 	RArray<TStringPoolTokenMapping>	iElementTokenToStringPoolIndex;
williamr@2: 
williamr@2: /**
williamr@2: Array to obtain a Attribute Token from String Pool index.
williamr@2: */	
williamr@2: 	RArray<TInt>					iAttributeStringPoolIndexToToken;
williamr@2: 
williamr@2: /**
williamr@2: Array to obtain a Attribute String Pool Index from a token.
williamr@2: */	
williamr@2: 	RArray<TStringPoolTokenMapping>	iAttributeTokenToStringPoolIndex;
williamr@2: 
williamr@2: /**
williamr@2: Array to obtain a Value Token from String Pool index.
williamr@2: */	
williamr@2: 	RArray<TInt>					iValueStringPoolIndexToToken;
williamr@2: 																		
williamr@2: /**
williamr@2: Array to obtain a Value String Pool Index from a token.
williamr@2: */	
williamr@2: 	RArray<TStringPoolTokenMapping>	iValueTokenToStringPoolIndex;
williamr@2: 
williamr@2: 
williamr@2: /**
williamr@2: The numeric codepage this object represents.
williamr@2: */	
williamr@2: 	TUint8							iCodePage;
williamr@2: 
williamr@2: 	};
williamr@2: 
williamr@2: }
williamr@2: 
williamr@2: #endif // __DICTIONARYCODEPAGE_H__