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os/textandloc/charconvfw/charconvplugins/src/plugins/j5.h
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 /*

     2 * Copyright (c) 2005-2009 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 "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 * J5 charconv character converter

    16 *

    17 */

    18 

    19 

    20 #if !defined(__J5_H__)

    21 #define __J5_H__

    22 

    23 /**

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

    25 character sets:

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

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

    28 	EUC_JP 

    29 	UTF8 

    30 	UCS2

    31 @internalTechnology 

    32 @released 9.1

    33 */

    34 class CJ5Converter : public CCharacterSetConverterPluginInterface

    35 	{

    36 

    37 public:

    38 	enum TJ5Encoding

    39 		{

    40 		EShiftjis = 1,

    41 		EIso2022jp1, 

    42 		EEucjp, 

    43 		EUtf8, 

    44 		EUcs2,

    45 		EUnknown

    46 		};

    47 

    48 	virtual const TDesC8& ReplacementForUnconvertibleUnicodeCharacters();

    49 

    50 	virtual TInt ConvertFromUnicode(

    51 		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

    52 		const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, 

    53 		TDes8& aForeign, 

    54 		const TDesC16& aUnicode, 

    55 		CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters);

    56 

    57 	virtual TInt ConvertToUnicode(

    58 		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

    59 		TDes16& aUnicode, 

    60 		const TDesC8& aForeign, 

    61 		TInt& aState, 

    62 		TInt& aNumberOfUnconvertibleCharacters, 

    63 		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter);

    64 

    65 	virtual TBool IsInThisCharacterSetL(

    66 		TBool& aSetToTrue, 

    67 		TInt& aConfidenceLevel, 

    68 		const TDesC8& aSample);

    69 

    70 	static CJ5Converter* NewL();

    71 	virtual ~CJ5Converter();

    72 

    73 private:

    74 	CJ5Converter();

    75 	void ConstructL();

    76 	

    77 	enum TDectectCharacterSet

    78 		{

    79 		EIsCharacterSet = 1,

    80 		EIsNotCharacterSet,

    81 		EMaybeCharacterSet

    82 		};

    83 			

    84 	enum TJ5Encoding DetectEncoding(

    85 		CCnvCharacterSetConverter::TEndianness& aDefaultEndiannessOfForeignCharacters, 

    86 		const TDesC8& aForeign );

    87 

    88 	TBool DetectUcs2( const TDesC8& aForeign,

    89 		CCnvCharacterSetConverter::TEndianness& aTEndianness );

    90 		

    91 	enum TDectectCharacterSet DetectShiftJis( const TDesC8& aForeign,

    92 		TInt &aNumberOfBytesConverted );

    93 	

    94 	enum TDectectCharacterSet DetectUtf8( const TDesC8& aForeign );

    95 

    96 	enum TDectectCharacterSet DetectEucJp( const TDesC8& aForeign,

    97 		TInt &aNumberOfBytesConverted );

    98 

    99 	enum TDectectCharacterSet DetectIso2022( const TDesC8& aForeign );

   100 		

   101 	TInt ConvertEEucjpToUnicode(

   102 		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters,

   103 		TDes16& aUnicode, 

   104 		const TDesC8& aForeign, 

   105 		TInt& aState, 

   106 		TInt& aNumberOfUnconvertibleCharacters, 

   107 		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter);

   108 	

   109 	TInt ConvertUcs2ToUnicode(CCnvCharacterSetConverter::TEndianness& aDefaultEndiannessOfForeignCharacters, 

   110 						   TDes16& aUnicode,		

   111 						   const TDesC8& aForeign,	

   112 						   TInt& aNumberOfUnconvertibleCharacters,   

   113 						   TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter); 

   114 									  

   115 	};

   116 

   117 	

   118 							  

   119 // EucJp conversion methods	

   120 void DummyConvertToIntermediateBufferInPlace(TDes8&);

   121 void ConvertToJisX0212FromEucJpPackedInPlace(TDes8& aDescriptor);

   122 void ConvertToJisX0208FromEucJpPackedInPlace(TDes8& aDescriptor);

   123 void ConvertToHalfWidthKatakana8FromEucJpPackedInPlace(TDes8& aDescriptor);

   124 TInt NumberOfBytesAbleToConvertToJisRoman(const TDesC8& aDescriptor);

   125 TInt NumberOfBytesAbleToConvertToJisX0208(const TDesC8& aDescriptor);

   126 TInt NumberOfBytesAbleToConvertToHalfWidthKatakana8(const TDesC8& aDescriptor);

   127 TInt NumberOfBytesAbleToConvertToJisX0212(const TDesC8& aDescriptor);

   128 

   129 #endif

   130
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