1 /*

     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:      

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 

    22 

    23 

    24 

    25 #if !defined(__J5_H__)

    26 #define __J5_H__

    27 

    28 /**

    29 J5 charconv character converter which supports automatic conversion for the following

    30 character sets:

    31 	SHIFT-JIS (Windows-31J Microsoft code page 932), 

    32 	ISO-2022-JP-1 (JIS-JP) 

    33 	EUC_JP 

    34 	UTF8 

    35 	UCS2

    36 @internalTechnology 

    37 @released 9.1

    38 */

    39 class CJ5Converter : public CCharacterSetConverterPluginInterface

    40 	{

    41 

    42 public:

    43 	enum TJ5Encoding

    44 		{

    45 		EShiftjis = 1,

    46 		EIso2022jp1, 

    47 		EEucjp, 

    48 		EUtf8, 

    49 		EUcs2,

    50 		EUnknown

    51 		};

    52 

    53 	virtual const TDesC8& ReplacementForUnconvertibleUnicodeCharacters();

    54 

    55 	virtual TInt ConvertFromUnicode(

    56 		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

    57 		const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, 

    58 		TDes8& aForeign, 

    59 		const TDesC16& aUnicode, 

    60 		CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters);

    61 

    62 	virtual TInt ConvertToUnicode(

    63 		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

    64 		TDes16& aUnicode, 

    65 		const TDesC8& aForeign, 

    66 		TInt& aState, 

    67 		TInt& aNumberOfUnconvertibleCharacters, 

    68 		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter);

    69 

    70 	virtual TBool IsInThisCharacterSetL(

    71 		TBool& aSetToTrue, 

    72 		TInt& aConfidenceLevel, 

    73 		const TDesC8& aSample);

    74 

    75 	static CJ5Converter* NewL();

    76 	virtual ~CJ5Converter();

    77 

    78 private:

    79 	CJ5Converter();

    80 	void ConstructL();

    81 	

    82 	enum TDectectCharacterSet

    83 		{

    84 		EIsCharacterSet = 1,

    85 		EIsNotCharacterSet,

    86 		EMaybeCharacterSet

    87 		};

    88 			

    89 	enum TJ5Encoding DetectEncoding(

    90 		CCnvCharacterSetConverter::TEndianness& aDefaultEndiannessOfForeignCharacters, 

    91 		const TDesC8& aForeign );

    92 

    93 	TBool DetectUcs2( const TDesC8& aForeign,

    94 		CCnvCharacterSetConverter::TEndianness& aTEndianness );

    95 		

    96 	enum TDectectCharacterSet DetectShiftJis( const TDesC8& aForeign,

    97 		TInt &aNumberOfBytesConverted );

    98 	

    99 	enum TDectectCharacterSet DetectUtf8( const TDesC8& aForeign );

   100 

   101 	enum TDectectCharacterSet DetectEucJp( const TDesC8& aForeign,

   102 		TInt &aNumberOfBytesConverted );

   103 

   104 	enum TDectectCharacterSet DetectIso2022( const TDesC8& aForeign );

   105 		

   106 	TInt ConvertEEucjpToUnicode(

   107 		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters,

   108 		TDes16& aUnicode, 

   109 		const TDesC8& aForeign, 

   110 		TInt& aState, 

   111 		TInt& aNumberOfUnconvertibleCharacters, 

   112 		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter);

   113 	

   114 	TInt ConvertUcs2ToUnicode(CCnvCharacterSetConverter::TEndianness& aDefaultEndiannessOfForeignCharacters, 

   115 						   TDes16& aUnicode,		

   116 						   const TDesC8& aForeign,	

   117 						   TInt& aNumberOfUnconvertibleCharacters,   

   118 						   TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter); 

   119 									  

   120 	};

   121 

   122 	

   123 							  

   124 // EucJp conversion methods	

   125 void DummyConvertToIntermediateBufferInPlace(TDes8&);

   126 void ConvertToJisX0212FromEucJpPackedInPlace(TDes8& aDescriptor);

   127 void ConvertToJisX0208FromEucJpPackedInPlace(TDes8& aDescriptor);

   128 void ConvertToHalfWidthKatakana8FromEucJpPackedInPlace(TDes8& aDescriptor);

   129 TInt NumberOfBytesAbleToConvertToJisRoman(const TDesC8& aDescriptor);

   130 TInt NumberOfBytesAbleToConvertToJisX0208(const TDesC8& aDescriptor);

   131 TInt NumberOfBytesAbleToConvertToHalfWidthKatakana8(const TDesC8& aDescriptor);

   132 TInt NumberOfBytesAbleToConvertToJisX0212(const TDesC8& aDescriptor);

   133 

   134 #endif

   135