1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/textandloc/charconvfw/charconvplugins/src/plugins/iso2022jp.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,159 @@
1.4 +/*
1.5 +* Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
1.6 +* All rights reserved.
1.7 +* This component and the accompanying materials are made available
1.8 +* under the terms of "Eclipse Public License v1.0"
1.9 +* which accompanies this distribution, and is available
1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.11 +*
1.12 +* Initial Contributors:
1.13 +* Nokia Corporation - initial contribution.
1.14 +*
1.15 +* Contributors:
1.16 +*
1.17 +* Description:
1.18 +*
1.19 +*/
1.20 +
1.21 +
1.22 +#include <e32std.h>
1.23 +#include <charconv.h>
1.24 +#include <convutils.h>
1.25 +#include "jisbase.h"
1.26 +#include "jisx0201.h"
1.27 +#include "jisx0208.h"
1.28 +#include <ecom/implementationproxy.h>
1.29 +#include <charactersetconverter.h>
1.30 +
1.31 +_LIT8(KLit8EscapeSequenceForJisRoman, "\x1b\x28\x4a");
1.32 +_LIT8(KLit8EscapeSequenceForAscii, "\x1b\x28\x42");
1.33 +_LIT8(KLit8EscapeSequenceForJisX0208_1983, "\x1b\x24\x42");
1.34 +_LIT8(KLit8Iso2022JpReplacementForUnconvertibleUnicodeCharacters, "\x1b\x24\x42\x21\x29"); // fullwidth question mark
1.35 +
1.36 +
1.37 +class CISO2022JPConverterImpl : public CCharacterSetConverterPluginInterface
1.38 + {
1.39 +
1.40 +public:
1.41 + virtual const TDesC8& ReplacementForUnconvertibleUnicodeCharacters();
1.42 +
1.43 + virtual TInt ConvertFromUnicode(
1.44 + CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters,
1.45 + const TDesC8& aReplacementForUnconvertibleUnicodeCharacters,
1.46 + TDes8& aForeign,
1.47 + const TDesC16& aUnicode,
1.48 + CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters);
1.49 +
1.50 + virtual TInt ConvertToUnicode(
1.51 + CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters,
1.52 + TDes16& aUnicode,
1.53 + const TDesC8& aForeign,
1.54 + TInt& aState,
1.55 + TInt& aNumberOfUnconvertibleCharacters,
1.56 + TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter);
1.57 +
1.58 + virtual TBool IsInThisCharacterSetL(
1.59 + TBool& aSetToTrue,
1.60 + TInt& aConfidenceLevel,
1.61 + const TDesC8& aSample);
1.62 +
1.63 + static CISO2022JPConverterImpl* NewL();
1.64 + virtual ~CISO2022JPConverterImpl();
1.65 +
1.66 +private:
1.67 + CISO2022JPConverterImpl();
1.68 +
1.69 + };
1.70 +
1.71 +
1.72 +
1.73 +const TDesC8& CISO2022JPConverterImpl::ReplacementForUnconvertibleUnicodeCharacters()
1.74 + {
1.75 + return KLit8Iso2022JpReplacementForUnconvertibleUnicodeCharacters;
1.76 + }
1.77 +
1.78 +LOCAL_C void ConvertFromJisRomanToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
1.79 + {
1.80 + CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisRoman, 1);
1.81 + }
1.82 +
1.83 +LOCAL_C void ConvertFromAsciiToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
1.84 + {
1.85 + CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForAscii, 1);
1.86 + }
1.87 +
1.88 +LOCAL_C void ConvertFromJisX0208ToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
1.89 + {
1.90 + CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisX0208_1983, 2);
1.91 + }
1.92 +
1.93 +TInt CISO2022JPConverterImpl::ConvertFromUnicode(
1.94 + CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters,
1.95 + const TDesC8& aReplacementForUnconvertibleUnicodeCharacters,
1.96 + TDes8& aForeign,
1.97 + const TDesC16& aUnicode,
1.98 + CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters)
1.99 + {
1.100 + TFixedArray<CnvUtilities::SCharacterSet, 3> characterSets;
1.101 + characterSets[0].iConversionData=&CCnvCharacterSetConverter::AsciiConversionData();
1.102 + characterSets[0].iConvertFromIntermediateBufferInPlace=ConvertFromAsciiToJisInPlace;
1.103 + characterSets[0].iEscapeSequence=&KLit8EscapeSequenceForAscii;
1.104 + characterSets[1].iConversionData=&CnvJisRoman::ConversionData();
1.105 + characterSets[1].iConvertFromIntermediateBufferInPlace=ConvertFromJisRomanToJisInPlace;
1.106 + characterSets[1].iEscapeSequence=&KLit8EscapeSequenceForJisRoman;
1.107 + characterSets[2].iConversionData=&CnvJisX0208::ConversionData();
1.108 + characterSets[2].iConvertFromIntermediateBufferInPlace=ConvertFromJisX0208ToJisInPlace;
1.109 + characterSets[2].iEscapeSequence=&KLit8EscapeSequenceForJisX0208_1983;
1.110 + TUint notUsed;
1.111 + TUint inputConversionFlags=CCnvCharacterSetConverter::EInputConversionFlagMustEndInDefaultCharacterSet |
1.112 + CCnvCharacterSetConverter::EInputConversionFlagAssumeStartInDefaultCharacterSet;
1.113 + return CnvUtilities::ConvertFromUnicode(aDefaultEndiannessOfForeignCharacters, aReplacementForUnconvertibleUnicodeCharacters, aForeign, aUnicode, aIndicesOfUnconvertibleCharacters, characterSets.Array(),notUsed,inputConversionFlags);
1.114 + }
1.115 +
1.116 +TInt CISO2022JPConverterImpl::ConvertToUnicode(
1.117 + CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters,
1.118 + TDes16& aUnicode,
1.119 + const TDesC8& aForeign,
1.120 + TInt& aState,
1.121 + TInt& aNumberOfUnconvertibleCharacters,
1.122 + TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter)
1.123 + {
1.124 + return CnvJisBase::ConvertToUnicode(aDefaultEndiannessOfForeignCharacters, aUnicode, aForeign, aState, aNumberOfUnconvertibleCharacters, aIndexOfFirstByteOfFirstUnconvertibleCharacter);
1.125 + }
1.126 +
1.127 +TBool CISO2022JPConverterImpl::IsInThisCharacterSetL(
1.128 + TBool& aSetToTrue,
1.129 + TInt& aConfidenceLevel,
1.130 + const TDesC8& aSample)
1.131 + {
1.132 + aSetToTrue=ETrue;
1.133 + CnvJisBase::IsCharacterJISBased(aConfidenceLevel, aSample);
1.134 + return ETrue;
1.135 + }
1.136 +
1.137 +CISO2022JPConverterImpl* CISO2022JPConverterImpl::NewL()
1.138 + {
1.139 + CISO2022JPConverterImpl* self = new(ELeave) CISO2022JPConverterImpl();
1.140 + return self;
1.141 + }
1.142 +
1.143 +CISO2022JPConverterImpl::~CISO2022JPConverterImpl()
1.144 + {
1.145 + }
1.146 +
1.147 +CISO2022JPConverterImpl::CISO2022JPConverterImpl()
1.148 + {
1.149 + }
1.150 +
1.151 +const TImplementationProxy ImplementationTable[] =
1.152 + {
1.153 + IMPLEMENTATION_PROXY_ENTRY(0x100066A0, CISO2022JPConverterImpl::NewL)
1.154 + };
1.155 +
1.156 +EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
1.157 + {
1.158 + aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
1.159 +
1.160 + return ImplementationTable;
1.161 + }
1.162 +