os/textandloc/charconvfw/charconvplugins/src/plugins/jis.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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/*
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#include <e32std.h>
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#include <charconv.h>
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#include <convutils.h>
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#include "jisbase.h"
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#include "jisx0201.h"
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#include "jisx0208.h"
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#include "jisx0212.h"
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#include <ecom/implementationproxy.h>
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#include <charactersetconverter.h>
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#include "featmgr/featmgr.h" 
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_LIT8(KLit8EscapeSequenceForJisRoman, "\x1b\x28\x4a");
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_LIT8(KLit8EscapeSequenceForAscii, "\x1b\x28\x42");
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_LIT8(KLit8EscapeSequenceForHalfWidthKatakana, "\x1b\x28\x49");
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_LIT8(KLit8EscapeSequenceForJisX0208_1983, "\x1b\x24\x42");
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_LIT8(KLit8EscapeSequenceForJisX0212_1990, "\x1b\x24\x28\x44");
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_LIT8(KLit8JisReplacementForUnconvertibleUnicodeCharacters, "\x1b\x24\x42\x21\x29"); // fullwidth question mark
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class CJISConverterImpl : public CCharacterSetConverterPluginInterface
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	{
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public:
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	virtual const TDesC8& ReplacementForUnconvertibleUnicodeCharacters();
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	virtual TInt ConvertFromUnicode(
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		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 
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		const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, 
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		TDes8& aForeign, 
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		const TDesC16& aUnicode, 
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		CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters);
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	virtual TInt ConvertToUnicode(
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		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 
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		TDes16& aUnicode, 
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		const TDesC8& aForeign, 
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		TInt& aState, 
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		TInt& aNumberOfUnconvertibleCharacters, 
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		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter);
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	virtual TBool IsInThisCharacterSetL(
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		TBool& aSetToTrue, 
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		TInt& aConfidenceLevel, 
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		const TDesC8& aSample);
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	static CJISConverterImpl* NewL();
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	virtual ~CJISConverterImpl();
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private:
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	CJISConverterImpl();
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	void ConstructL();
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	};
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const TDesC8& CJISConverterImpl::ReplacementForUnconvertibleUnicodeCharacters()
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	{
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	return KLit8JisReplacementForUnconvertibleUnicodeCharacters;
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	}
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LOCAL_C void ConvertFromJisRomanToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
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	{
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	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisRoman, 1);
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	}
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LOCAL_C void ConvertFromAsciiToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
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	{
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	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForAscii, 1);
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	}
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LOCAL_C void ConvertFromHalfWidthKatakanaToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
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	{
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	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForHalfWidthKatakana, 1);
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	}
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LOCAL_C void ConvertFromJisX0208ToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
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	{
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	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisX0208_1983, 2);
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	}
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LOCAL_C void ConvertFromJisX0212ToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
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	{
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	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisX0212_1990, 2);
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	}
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TInt CJISConverterImpl::ConvertFromUnicode(
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		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 
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		const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, 
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		TDes8& aForeign, 
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		const TDesC16& aUnicode, 
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		CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters)
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	{
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	TFixedArray<CnvUtilities::SCharacterSet, 5> characterSets;
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	characterSets[0].iConversionData=&CnvJisRoman::ConversionData();
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	characterSets[0].iConvertFromIntermediateBufferInPlace=ConvertFromJisRomanToJisInPlace;
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	characterSets[0].iEscapeSequence=&KLit8EscapeSequenceForJisRoman;
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	characterSets[1].iConversionData=&CCnvCharacterSetConverter::AsciiConversionData();
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	characterSets[1].iConvertFromIntermediateBufferInPlace=ConvertFromAsciiToJisInPlace;
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	characterSets[1].iEscapeSequence=&KLit8EscapeSequenceForAscii;
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	characterSets[2].iConversionData=&CnvJisBase::HalfWidthKatakana7ConversionData();
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	characterSets[2].iConvertFromIntermediateBufferInPlace=ConvertFromHalfWidthKatakanaToJisInPlace;
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	characterSets[2].iEscapeSequence=&KLit8EscapeSequenceForHalfWidthKatakana;
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	characterSets[3].iConversionData=&CnvJisX0208::ConversionData();
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	characterSets[3].iConvertFromIntermediateBufferInPlace=ConvertFromJisX0208ToJisInPlace;
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	characterSets[3].iEscapeSequence=&KLit8EscapeSequenceForJisX0208_1983;
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	characterSets[4].iConversionData=&CnvJisX0212::ConversionData();
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	characterSets[4].iConvertFromIntermediateBufferInPlace=ConvertFromJisX0212ToJisInPlace;
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	characterSets[4].iEscapeSequence=&KLit8EscapeSequenceForJisX0212_1990;
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	return CnvUtilities::ConvertFromUnicode(aDefaultEndiannessOfForeignCharacters, aReplacementForUnconvertibleUnicodeCharacters, aForeign, aUnicode, aIndicesOfUnconvertibleCharacters, characterSets.Array());
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	}
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TInt CJISConverterImpl::ConvertToUnicode(
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		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 
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		TDes16& aUnicode, 
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		const TDesC8& aForeign, 
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		TInt& aState, 
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		TInt& aNumberOfUnconvertibleCharacters, 
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		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter)
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	{
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	return CnvJisBase::ConvertToUnicode(aDefaultEndiannessOfForeignCharacters, aUnicode, aForeign, aState, aNumberOfUnconvertibleCharacters, aIndexOfFirstByteOfFirstUnconvertibleCharacter);
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	}
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TBool CJISConverterImpl::IsInThisCharacterSetL(
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		TBool& aSetToTrue, 
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		TInt& aConfidenceLevel, 
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		const TDesC8& aSample)
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	{
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	aSetToTrue=ETrue;
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	CnvJisBase::IsCharacterJISBased(aConfidenceLevel, aSample);
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	return ETrue;
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	}
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CJISConverterImpl* CJISConverterImpl::NewL()
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	{
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	CJISConverterImpl* self = new(ELeave) CJISConverterImpl();
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    CleanupStack::Pop(self);
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	return self;
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	}
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CJISConverterImpl::~CJISConverterImpl()
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	{
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	FeatureManager::UnInitializeLib();
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	}
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CJISConverterImpl::CJISConverterImpl()
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	{
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	}
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void CJISConverterImpl::ConstructL()
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    {
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    FeatureManager::InitializeLibL();
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    }
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const TImplementationProxy ImplementationTable[] = 
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	{
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		IMPLEMENTATION_PROXY_ENTRY(0x10006066,	CJISConverterImpl::NewL)
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	};
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EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
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	{
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	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
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	return ImplementationTable;
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	}
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