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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 "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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const TUint KSingleShift2=0x8e;
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const TUint KSingleShift3=0x8f;
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_LIT8(KLit8EucJpPackedReplacementForUnconvertibleUnicodeCharacters, "\xa1\xa9"); // fullwidth question mark
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#if defined(_DEBUG)
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_LIT(KLitPanicText, "EUCJP_PACKED");
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enum TPanic
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{
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EPanicNothingToConvert1=1,
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EPanicNothingToConvert2,
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EPanicNothingToConvert3,
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EPanicNothingToConvert4,
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EPanicNothingToConvert5,
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EPanicNothingToConvert6,
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EPanicOddNumberOfBytes1,
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EPanicOddNumberOfBytes2,
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EPanicOddNumberOfBytes3,
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EPanicOddNumberOfBytes4,
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EPanicOddNumberOfBytes5,
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EPanicOddNumberOfBytes6,
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EPanicBadHighBit1,
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EPanicBadHighBit2,
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EPanicBadHighBit3,
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EPanicBadHighBit4,
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EPanicBadHighBit5,
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EPanicBadHighBit6,
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EPanicBadHighBit7,
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EPanicBadPointers1,
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EPanicBadPointers2,
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EPanicBadPointers3,
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EPanicBadPointers4,
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EPanicBadPointers5,
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EPanicBadPointers6,
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EPanicBadPointers7,
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EPanicBadPointers8,
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EPanicBadPointers9,
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EPanicBadPointers10,
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EPanicBadPointers11,
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EPanicBadPointers12,
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EPanicBadPointers13,
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EPanicBadPointers14,
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EPanicBadPointers15,
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EPanicBadPointers16,
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EPanicBadPointers17,
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EPanicBadPointers18,
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EPanicBadPointers19,
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EPanicBadPointers20,
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EPanicBadPointers21,
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EPanicBadPointers22,
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EPanicBadPointers23,
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EPanicBadPointers24,
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EPanicBadPointers25,
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EPanicBadPointers26,
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EPanicBadPointers27,
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EPanicBadPointers28,
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EPanicBadPointers29,
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EPanicBadPointers30,
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EPanicBadPointers31,
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EPanicBadPointers32,
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EPanicBadPointers33,
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EPanicBadPointers34,
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EPanicBadPointers35,
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EPanicBadPointers36,
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EPanicBadCalculation1,
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EPanicBadCalculation2,
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EPanicNumberOfBytesIsNotMultipleOfThree1,
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EPanicNumberOfBytesIsNotMultipleOfThree2,
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EPanicSingleShift2Expected,
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EPanicSingleShift3Expected
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};
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LOCAL_C void Panic(TPanic aPanic)
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{
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User::Panic(KLitPanicText, aPanic);
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}
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#endif
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class CEucjpPackedConverterImpl : 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 CEucjpPackedConverterImpl* NewL();
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virtual ~CEucjpPackedConverterImpl();
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private:
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CEucjpPackedConverterImpl();
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};
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const TDesC8& CEucjpPackedConverterImpl::ReplacementForUnconvertibleUnicodeCharacters()
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{
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return KLit8EucJpPackedReplacementForUnconvertibleUnicodeCharacters;
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}
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LOCAL_C void DummyConvertFromIntermediateBufferInPlace(TInt, TDes8&, TInt& aNumberOfCharactersThatDroppedOut)
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{
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aNumberOfCharactersThatDroppedOut=0;
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}
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LOCAL_C void ConvertFromJisX0208ToEucJpPackedInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
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{
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aNumberOfCharactersThatDroppedOut=0;
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const TInt descriptorLength=aDescriptor.Length();
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__ASSERT_DEBUG(descriptorLength>aStartPositionInDescriptor, Panic(EPanicNothingToConvert1));
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__ASSERT_DEBUG((descriptorLength-aStartPositionInDescriptor)%2==0, Panic(EPanicOddNumberOfBytes1));
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TUint8* pointerToCurrentByte=CONST_CAST(TUint8*, aDescriptor.Ptr());
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const TUint8* const pointerToLastByte=pointerToCurrentByte+(descriptorLength-1);
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pointerToCurrentByte+=aStartPositionInDescriptor;
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FOREVER
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{
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const TUint currentByte=*pointerToCurrentByte;
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__ASSERT_DEBUG((currentByte&0x80)==0, Panic(EPanicBadHighBit1));
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*pointerToCurrentByte=STATIC_CAST(TUint8, currentByte|0x80);
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__ASSERT_DEBUG(pointerToCurrentByte<=pointerToLastByte, Panic(EPanicBadPointers1));
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if (pointerToCurrentByte>=pointerToLastByte)
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{
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break;
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}
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++pointerToCurrentByte;
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}
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}
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LOCAL_C void ConvertFromHalfWidthKatakana8ToEucJpPackedInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
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{
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TInt descriptorLength=aDescriptor.Length();
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__ASSERT_DEBUG(descriptorLength>aStartPositionInDescriptor, Panic(EPanicNothingToConvert2));
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aNumberOfCharactersThatDroppedOut=Max(0, (descriptorLength-aStartPositionInDescriptor)-((aDescriptor.MaxLength()-aStartPositionInDescriptor)/2));
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descriptorLength-=aNumberOfCharactersThatDroppedOut;
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__ASSERT_DEBUG(descriptorLength>=aStartPositionInDescriptor, Panic(EPanicBadCalculation1));
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if (descriptorLength<=aStartPositionInDescriptor)
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{
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aDescriptor.SetLength(descriptorLength);
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}
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else
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{
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TUint8* pointerToTargetByte=CONST_CAST(TUint8*, aDescriptor.Ptr()); // pointerToTargetByte is initialized properly when descriptorLength has been offset to the actual final length of aDescriptor
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const TUint8* const pointerToFirstByte=pointerToTargetByte+aStartPositionInDescriptor;
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const TUint8* pointerToSourceByte=pointerToTargetByte+(descriptorLength-1);
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descriptorLength=((descriptorLength-aStartPositionInDescriptor)*2)+aStartPositionInDescriptor;
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__ASSERT_DEBUG((descriptorLength-aStartPositionInDescriptor)%2==0, Panic(EPanicOddNumberOfBytes2));
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aDescriptor.SetLength(descriptorLength);
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pointerToTargetByte+=descriptorLength-1; // pointerToTargetByte is is initialized properly here
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FOREVER
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{
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*pointerToTargetByte=*pointerToSourceByte;
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__ASSERT_DEBUG(pointerToTargetByte>pointerToFirstByte, Panic(EPanicBadPointers2));
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--pointerToTargetByte;
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*pointerToTargetByte=KSingleShift2;
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__ASSERT_DEBUG(pointerToTargetByte>=pointerToFirstByte, Panic(EPanicBadPointers3));
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if (pointerToTargetByte<=pointerToFirstByte)
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{
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break;
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}
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--pointerToTargetByte;
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__ASSERT_DEBUG(pointerToSourceByte>pointerToFirstByte, Panic(EPanicBadPointers4));
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--pointerToSourceByte;
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}
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__ASSERT_DEBUG(pointerToTargetByte==pointerToFirstByte, Panic(EPanicBadPointers5));
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__ASSERT_DEBUG(pointerToSourceByte==pointerToFirstByte, Panic(EPanicBadPointers6));
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}
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}
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LOCAL_C void ConvertFromJisX0212ToEucJpPackedInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)
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{
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TInt descriptorLength=aDescriptor.Length();
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__ASSERT_DEBUG(descriptorLength>aStartPositionInDescriptor, Panic(EPanicNothingToConvert3));
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__ASSERT_DEBUG((descriptorLength-aStartPositionInDescriptor)%2==0, Panic(EPanicOddNumberOfBytes3));
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aNumberOfCharactersThatDroppedOut=Max(0, ((descriptorLength-aStartPositionInDescriptor)/2)-((aDescriptor.MaxLength()-aStartPositionInDescriptor)/3));
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descriptorLength-=aNumberOfCharactersThatDroppedOut*2;
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__ASSERT_DEBUG(descriptorLength>=aStartPositionInDescriptor, Panic(EPanicBadCalculation2));
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if (descriptorLength<=aStartPositionInDescriptor)
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{
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aDescriptor.SetLength(descriptorLength);
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}
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else
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{
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__ASSERT_DEBUG((descriptorLength-aStartPositionInDescriptor)%2==0, Panic(EPanicOddNumberOfBytes4));
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TUint8* pointerToTargetByte=CONST_CAST(TUint8*, aDescriptor.Ptr()); // pointerToTargetByte is initialized properly when descriptorLength has been offset to the actual final length of aDescriptor
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const TUint8* const pointerToFirstByte=pointerToTargetByte+aStartPositionInDescriptor;
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const TUint8* pointerToSourceByte=pointerToTargetByte+(descriptorLength-1);
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descriptorLength=(((descriptorLength-aStartPositionInDescriptor)*3)/2)+aStartPositionInDescriptor;
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__ASSERT_DEBUG((descriptorLength-aStartPositionInDescriptor)%3==0, Panic(EPanicNumberOfBytesIsNotMultipleOfThree1));
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aDescriptor.SetLength(descriptorLength);
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pointerToTargetByte+=descriptorLength-1; // pointerToTargetByte is is initialized properly here
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FOREVER
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{
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__ASSERT_DEBUG((*pointerToSourceByte&0x80)==0, Panic(EPanicBadHighBit2));
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*pointerToTargetByte=STATIC_CAST(TUint8, *pointerToSourceByte|0x80);
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__ASSERT_DEBUG(pointerToTargetByte>pointerToFirstByte, Panic(EPanicBadPointers7));
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--pointerToTargetByte;
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__ASSERT_DEBUG(pointerToSourceByte>pointerToFirstByte, Panic(EPanicBadPointers8));
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--pointerToSourceByte;
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__ASSERT_DEBUG((*pointerToSourceByte&0x80)==0, Panic(EPanicBadHighBit3));
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*pointerToTargetByte=STATIC_CAST(TUint8, *pointerToSourceByte|0x80);
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__ASSERT_DEBUG(pointerToTargetByte>pointerToFirstByte, Panic(EPanicBadPointers9));
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--pointerToTargetByte;
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*pointerToTargetByte=KSingleShift3;
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__ASSERT_DEBUG(pointerToTargetByte>=pointerToFirstByte, Panic(EPanicBadPointers10));
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if (pointerToTargetByte<=pointerToFirstByte)
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{
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break;
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}
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--pointerToTargetByte;
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__ASSERT_DEBUG(pointerToSourceByte>pointerToFirstByte, Panic(EPanicBadPointers11));
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--pointerToSourceByte;
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}
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__ASSERT_DEBUG(pointerToTargetByte==pointerToFirstByte, Panic(EPanicBadPointers12));
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__ASSERT_DEBUG(pointerToSourceByte==pointerToFirstByte, Panic(EPanicBadPointers13));
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}
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}
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TInt CEucjpPackedConverterImpl::ConvertFromUnicode(
|
|
sl@0
|
271 |
CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters,
|
|
sl@0
|
272 |
const TDesC8& aReplacementForUnconvertibleUnicodeCharacters,
|
|
sl@0
|
273 |
TDes8& aForeign,
|
|
sl@0
|
274 |
const TDesC16& aUnicode,
|
|
sl@0
|
275 |
CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters)
|
|
sl@0
|
276 |
{
|
|
sl@0
|
277 |
TFixedArray<CnvUtilities::SCharacterSet, 4> characterSets;
|
|
sl@0
|
278 |
characterSets[0].iConversionData=&CnvJisRoman::ConversionData();
|
|
sl@0
|
279 |
characterSets[0].iConvertFromIntermediateBufferInPlace=DummyConvertFromIntermediateBufferInPlace;
|
|
sl@0
|
280 |
characterSets[0].iEscapeSequence=&KNullDesC8;
|
|
sl@0
|
281 |
characterSets[1].iConversionData=&CnvJisX0208::ConversionData();
|
|
sl@0
|
282 |
characterSets[1].iConvertFromIntermediateBufferInPlace=ConvertFromJisX0208ToEucJpPackedInPlace;
|
|
sl@0
|
283 |
characterSets[1].iEscapeSequence=&KNullDesC8;
|
|
sl@0
|
284 |
characterSets[2].iConversionData=&CnvHalfWidthKatakana8::ConversionData();
|
|
sl@0
|
285 |
characterSets[2].iConvertFromIntermediateBufferInPlace=ConvertFromHalfWidthKatakana8ToEucJpPackedInPlace;
|
|
sl@0
|
286 |
characterSets[2].iEscapeSequence=&KNullDesC8;
|
|
sl@0
|
287 |
characterSets[3].iConversionData=&CnvJisX0212::ConversionData();
|
|
sl@0
|
288 |
characterSets[3].iConvertFromIntermediateBufferInPlace=ConvertFromJisX0212ToEucJpPackedInPlace;
|
|
sl@0
|
289 |
characterSets[3].iEscapeSequence=&KNullDesC8;
|
|
sl@0
|
290 |
return CnvUtilities::ConvertFromUnicode(aDefaultEndiannessOfForeignCharacters, aReplacementForUnconvertibleUnicodeCharacters, aForeign, aUnicode, aIndicesOfUnconvertibleCharacters, characterSets.Array());
|
|
sl@0
|
291 |
}
|
|
sl@0
|
292 |
|
|
sl@0
|
293 |
LOCAL_C TInt NumberOfBytesAbleToConvertToJisRoman(const TDesC8& aDescriptor)
|
|
sl@0
|
294 |
{
|
|
sl@0
|
295 |
const TUint8* pointerToPreviousByte=aDescriptor.Ptr()-1;
|
|
sl@0
|
296 |
const TUint8* const pointerToLastByte=pointerToPreviousByte+aDescriptor.Length();
|
|
sl@0
|
297 |
if (pointerToPreviousByte==pointerToLastByte)
|
|
sl@0
|
298 |
{
|
|
sl@0
|
299 |
return 0;
|
|
sl@0
|
300 |
}
|
|
sl@0
|
301 |
FOREVER
|
|
sl@0
|
302 |
{
|
|
sl@0
|
303 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers14));
|
|
sl@0
|
304 |
const TUint currentByte=*(pointerToPreviousByte+1);
|
|
sl@0
|
305 |
if (currentByte&0x80)
|
|
sl@0
|
306 |
{
|
|
sl@0
|
307 |
break;
|
|
sl@0
|
308 |
}
|
|
sl@0
|
309 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers15));
|
|
sl@0
|
310 |
++pointerToPreviousByte;
|
|
sl@0
|
311 |
__ASSERT_DEBUG(pointerToPreviousByte<=pointerToLastByte, Panic(EPanicBadPointers16));
|
|
sl@0
|
312 |
if (pointerToPreviousByte>=pointerToLastByte)
|
|
sl@0
|
313 |
{
|
|
sl@0
|
314 |
break;
|
|
sl@0
|
315 |
}
|
|
sl@0
|
316 |
}
|
|
sl@0
|
317 |
return (pointerToPreviousByte+1)-aDescriptor.Ptr();
|
|
sl@0
|
318 |
}
|
|
sl@0
|
319 |
|
|
sl@0
|
320 |
LOCAL_C TInt NumberOfBytesAbleToConvertToJisX0208(const TDesC8& aDescriptor)
|
|
sl@0
|
321 |
{
|
|
sl@0
|
322 |
const TUint8* pointerToPreviousByte=aDescriptor.Ptr()-1;
|
|
sl@0
|
323 |
const TUint8* const pointerToLastByte=pointerToPreviousByte+aDescriptor.Length();
|
|
sl@0
|
324 |
if (pointerToPreviousByte==pointerToLastByte)
|
|
sl@0
|
325 |
{
|
|
sl@0
|
326 |
return 0;
|
|
sl@0
|
327 |
}
|
|
sl@0
|
328 |
FOREVER
|
|
sl@0
|
329 |
{
|
|
sl@0
|
330 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers17));
|
|
sl@0
|
331 |
TUint currentByte=*(pointerToPreviousByte+1);
|
|
sl@0
|
332 |
if (currentByte<0xa0)
|
|
sl@0
|
333 |
{
|
|
sl@0
|
334 |
break;
|
|
sl@0
|
335 |
}
|
|
sl@0
|
336 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers18));
|
|
sl@0
|
337 |
if (pointerToLastByte-pointerToPreviousByte<2)
|
|
sl@0
|
338 |
{
|
|
sl@0
|
339 |
break;
|
|
sl@0
|
340 |
}
|
|
sl@0
|
341 |
++pointerToPreviousByte;
|
|
sl@0
|
342 |
currentByte=*(pointerToPreviousByte+1);
|
|
sl@0
|
343 |
if (currentByte<0xa0)
|
|
sl@0
|
344 |
{
|
|
sl@0
|
345 |
return CCnvCharacterSetConverter::EErrorIllFormedInput;
|
|
sl@0
|
346 |
}
|
|
sl@0
|
347 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers19));
|
|
sl@0
|
348 |
++pointerToPreviousByte;
|
|
sl@0
|
349 |
__ASSERT_DEBUG(pointerToPreviousByte<=pointerToLastByte, Panic(EPanicBadPointers20));
|
|
sl@0
|
350 |
if (pointerToPreviousByte>=pointerToLastByte)
|
|
sl@0
|
351 |
{
|
|
sl@0
|
352 |
break;
|
|
sl@0
|
353 |
}
|
|
sl@0
|
354 |
}
|
|
sl@0
|
355 |
return (pointerToPreviousByte+1)-aDescriptor.Ptr();
|
|
sl@0
|
356 |
}
|
|
sl@0
|
357 |
|
|
sl@0
|
358 |
LOCAL_C TInt NumberOfBytesAbleToConvertToHalfWidthKatakana8(const TDesC8& aDescriptor)
|
|
sl@0
|
359 |
{
|
|
sl@0
|
360 |
const TUint8* pointerToPreviousByte=aDescriptor.Ptr()-1;
|
|
sl@0
|
361 |
const TUint8* const pointerToLastByte=pointerToPreviousByte+aDescriptor.Length();
|
|
sl@0
|
362 |
if (pointerToPreviousByte==pointerToLastByte)
|
|
sl@0
|
363 |
{
|
|
sl@0
|
364 |
return 0;
|
|
sl@0
|
365 |
}
|
|
sl@0
|
366 |
FOREVER
|
|
sl@0
|
367 |
{
|
|
sl@0
|
368 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers21));
|
|
sl@0
|
369 |
TUint currentByte=*(pointerToPreviousByte+1);
|
|
sl@0
|
370 |
if (currentByte!=KSingleShift2)
|
|
sl@0
|
371 |
{
|
|
sl@0
|
372 |
break;
|
|
sl@0
|
373 |
}
|
|
sl@0
|
374 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers22));
|
|
sl@0
|
375 |
if (pointerToLastByte-pointerToPreviousByte<2)
|
|
sl@0
|
376 |
{
|
|
sl@0
|
377 |
break;
|
|
sl@0
|
378 |
}
|
|
sl@0
|
379 |
++pointerToPreviousByte;
|
|
sl@0
|
380 |
currentByte=*(pointerToPreviousByte+1);
|
|
sl@0
|
381 |
if (currentByte<0xa0)
|
|
sl@0
|
382 |
{
|
|
sl@0
|
383 |
return CCnvCharacterSetConverter::EErrorIllFormedInput;
|
|
sl@0
|
384 |
}
|
|
sl@0
|
385 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers23));
|
|
sl@0
|
386 |
++pointerToPreviousByte;
|
|
sl@0
|
387 |
__ASSERT_DEBUG(pointerToPreviousByte<=pointerToLastByte, Panic(EPanicBadPointers24));
|
|
sl@0
|
388 |
if (pointerToPreviousByte>=pointerToLastByte)
|
|
sl@0
|
389 |
{
|
|
sl@0
|
390 |
break;
|
|
sl@0
|
391 |
}
|
|
sl@0
|
392 |
}
|
|
sl@0
|
393 |
return (pointerToPreviousByte+1)-aDescriptor.Ptr();
|
|
sl@0
|
394 |
}
|
|
sl@0
|
395 |
|
|
sl@0
|
396 |
LOCAL_C TInt NumberOfBytesAbleToConvertToJisX0212(const TDesC8& aDescriptor)
|
|
sl@0
|
397 |
{
|
|
sl@0
|
398 |
const TUint8* pointerToPreviousByte=aDescriptor.Ptr()-1;
|
|
sl@0
|
399 |
const TUint8* const pointerToLastByte=pointerToPreviousByte+aDescriptor.Length();
|
|
sl@0
|
400 |
if (pointerToPreviousByte==pointerToLastByte)
|
|
sl@0
|
401 |
{
|
|
sl@0
|
402 |
return 0;
|
|
sl@0
|
403 |
}
|
|
sl@0
|
404 |
FOREVER
|
|
sl@0
|
405 |
{
|
|
sl@0
|
406 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers25));
|
|
sl@0
|
407 |
TUint currentByte=*(pointerToPreviousByte+1);
|
|
sl@0
|
408 |
if (currentByte!=KSingleShift3)
|
|
sl@0
|
409 |
{
|
|
sl@0
|
410 |
break;
|
|
sl@0
|
411 |
}
|
|
sl@0
|
412 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers26));
|
|
sl@0
|
413 |
if (pointerToLastByte-pointerToPreviousByte<3)
|
|
sl@0
|
414 |
{
|
|
sl@0
|
415 |
break;
|
|
sl@0
|
416 |
}
|
|
sl@0
|
417 |
++pointerToPreviousByte;
|
|
sl@0
|
418 |
currentByte=*(pointerToPreviousByte+1);
|
|
sl@0
|
419 |
if (currentByte<0xa0)
|
|
sl@0
|
420 |
{
|
|
sl@0
|
421 |
return CCnvCharacterSetConverter::EErrorIllFormedInput;
|
|
sl@0
|
422 |
}
|
|
sl@0
|
423 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers27));
|
|
sl@0
|
424 |
++pointerToPreviousByte;
|
|
sl@0
|
425 |
currentByte=*(pointerToPreviousByte+1);
|
|
sl@0
|
426 |
if (currentByte<0xa0)
|
|
sl@0
|
427 |
{
|
|
sl@0
|
428 |
return CCnvCharacterSetConverter::EErrorIllFormedInput;
|
|
sl@0
|
429 |
}
|
|
sl@0
|
430 |
__ASSERT_DEBUG(pointerToPreviousByte<pointerToLastByte, Panic(EPanicBadPointers28));
|
|
sl@0
|
431 |
++pointerToPreviousByte;
|
|
sl@0
|
432 |
__ASSERT_DEBUG(pointerToPreviousByte<=pointerToLastByte, Panic(EPanicBadPointers29));
|
|
sl@0
|
433 |
if (pointerToPreviousByte>=pointerToLastByte)
|
|
sl@0
|
434 |
{
|
|
sl@0
|
435 |
break;
|
|
sl@0
|
436 |
}
|
|
sl@0
|
437 |
}
|
|
sl@0
|
438 |
return (pointerToPreviousByte+1)-aDescriptor.Ptr();
|
|
sl@0
|
439 |
}
|
|
sl@0
|
440 |
|
|
sl@0
|
441 |
LOCAL_C void DummyConvertToIntermediateBufferInPlace(TDes8&)
|
|
sl@0
|
442 |
{
|
|
sl@0
|
443 |
}
|
|
sl@0
|
444 |
|
|
sl@0
|
445 |
LOCAL_C void ConvertToJisX0208FromEucJpPackedInPlace(TDes8& aDescriptor)
|
|
sl@0
|
446 |
{
|
|
sl@0
|
447 |
const TInt descriptorLength=aDescriptor.Length();
|
|
sl@0
|
448 |
__ASSERT_DEBUG(descriptorLength>0, Panic(EPanicNothingToConvert4));
|
|
sl@0
|
449 |
__ASSERT_DEBUG(descriptorLength%2==0, Panic(EPanicOddNumberOfBytes5));
|
|
sl@0
|
450 |
TUint8* pointerToCurrentByte=CONST_CAST(TUint8*, aDescriptor.Ptr());
|
|
sl@0
|
451 |
const TUint8* const pointerToLastByte=pointerToCurrentByte+(descriptorLength-1);
|
|
sl@0
|
452 |
FOREVER
|
|
sl@0
|
453 |
{
|
|
sl@0
|
454 |
const TUint currentByte=*pointerToCurrentByte;
|
|
sl@0
|
455 |
__ASSERT_DEBUG(currentByte&0x80, Panic(EPanicBadHighBit4));
|
|
sl@0
|
456 |
*pointerToCurrentByte=STATIC_CAST(TUint8, currentByte&~0x80);
|
|
sl@0
|
457 |
__ASSERT_DEBUG(pointerToCurrentByte<=pointerToLastByte, Panic(EPanicBadPointers30));
|
|
sl@0
|
458 |
if (pointerToCurrentByte>=pointerToLastByte)
|
|
sl@0
|
459 |
{
|
|
sl@0
|
460 |
break;
|
|
sl@0
|
461 |
}
|
|
sl@0
|
462 |
++pointerToCurrentByte;
|
|
sl@0
|
463 |
}
|
|
sl@0
|
464 |
}
|
|
sl@0
|
465 |
|
|
sl@0
|
466 |
LOCAL_C void ConvertToHalfWidthKatakana8FromEucJpPackedInPlace(TDes8& aDescriptor)
|
|
sl@0
|
467 |
{
|
|
sl@0
|
468 |
const TInt descriptorLength=aDescriptor.Length();
|
|
sl@0
|
469 |
__ASSERT_DEBUG(descriptorLength>0, Panic(EPanicNothingToConvert5));
|
|
sl@0
|
470 |
__ASSERT_DEBUG(descriptorLength%2==0, Panic(EPanicOddNumberOfBytes6));
|
|
sl@0
|
471 |
TUint8* pointerToTargetByte=CONST_CAST(TUint8*, aDescriptor.Ptr());
|
|
sl@0
|
472 |
const TUint8* pointerToSourceByte=pointerToTargetByte;
|
|
sl@0
|
473 |
const TUint8* const pointerToLastByte=pointerToSourceByte+(descriptorLength-1);
|
|
sl@0
|
474 |
FOREVER
|
|
sl@0
|
475 |
{
|
|
sl@0
|
476 |
__ASSERT_DEBUG(*pointerToSourceByte==KSingleShift2, Panic(EPanicSingleShift2Expected));
|
|
sl@0
|
477 |
__ASSERT_DEBUG(pointerToSourceByte<pointerToLastByte, Panic(EPanicBadPointers31));
|
|
sl@0
|
478 |
++pointerToSourceByte;
|
|
sl@0
|
479 |
const TUint sourceByte=*pointerToSourceByte;
|
|
sl@0
|
480 |
__ASSERT_DEBUG(sourceByte&0x80, Panic(EPanicBadHighBit5));
|
|
sl@0
|
481 |
*pointerToTargetByte=STATIC_CAST(TUint8, sourceByte);
|
|
sl@0
|
482 |
__ASSERT_DEBUG(pointerToSourceByte<=pointerToLastByte, Panic(EPanicBadPointers32));
|
|
sl@0
|
483 |
if (pointerToSourceByte>=pointerToLastByte)
|
|
sl@0
|
484 |
{
|
|
sl@0
|
485 |
break;
|
|
sl@0
|
486 |
}
|
|
sl@0
|
487 |
++pointerToSourceByte;
|
|
sl@0
|
488 |
++pointerToTargetByte;
|
|
sl@0
|
489 |
}
|
|
sl@0
|
490 |
aDescriptor.SetLength(descriptorLength/2);
|
|
sl@0
|
491 |
}
|
|
sl@0
|
492 |
|
|
sl@0
|
493 |
LOCAL_C void ConvertToJisX0212FromEucJpPackedInPlace(TDes8& aDescriptor)
|
|
sl@0
|
494 |
{
|
|
sl@0
|
495 |
const TInt descriptorLength=aDescriptor.Length();
|
|
sl@0
|
496 |
__ASSERT_DEBUG(descriptorLength>0, Panic(EPanicNothingToConvert6));
|
|
sl@0
|
497 |
__ASSERT_DEBUG(descriptorLength%3==0, Panic(EPanicNumberOfBytesIsNotMultipleOfThree2));
|
|
sl@0
|
498 |
TUint8* pointerToTargetByte=CONST_CAST(TUint8*, aDescriptor.Ptr());
|
|
sl@0
|
499 |
const TUint8* pointerToSourceByte=pointerToTargetByte;
|
|
sl@0
|
500 |
const TUint8* const pointerToLastByte=pointerToSourceByte+(descriptorLength-1);
|
|
sl@0
|
501 |
FOREVER
|
|
sl@0
|
502 |
{
|
|
sl@0
|
503 |
__ASSERT_DEBUG(*pointerToSourceByte==KSingleShift3, Panic(EPanicSingleShift3Expected));
|
|
sl@0
|
504 |
__ASSERT_DEBUG(pointerToSourceByte<pointerToLastByte, Panic(EPanicBadPointers33));
|
|
sl@0
|
505 |
++pointerToSourceByte;
|
|
sl@0
|
506 |
TUint sourceByte=*pointerToSourceByte;
|
|
sl@0
|
507 |
__ASSERT_DEBUG(sourceByte&0x80, Panic(EPanicBadHighBit6));
|
|
sl@0
|
508 |
*pointerToTargetByte=STATIC_CAST(TUint8, sourceByte&~0x80);
|
|
sl@0
|
509 |
__ASSERT_DEBUG(pointerToSourceByte<pointerToLastByte, Panic(EPanicBadPointers34));
|
|
sl@0
|
510 |
++pointerToSourceByte;
|
|
sl@0
|
511 |
sourceByte=*pointerToSourceByte;
|
|
sl@0
|
512 |
__ASSERT_DEBUG(sourceByte&0x80, Panic(EPanicBadHighBit7));
|
|
sl@0
|
513 |
__ASSERT_DEBUG(pointerToTargetByte<pointerToLastByte, Panic(EPanicBadPointers35));
|
|
sl@0
|
514 |
++pointerToTargetByte;
|
|
sl@0
|
515 |
*pointerToTargetByte=STATIC_CAST(TUint8, sourceByte&~0x80);
|
|
sl@0
|
516 |
__ASSERT_DEBUG(pointerToSourceByte<=pointerToLastByte, Panic(EPanicBadPointers36));
|
|
sl@0
|
517 |
if (pointerToSourceByte>=pointerToLastByte)
|
|
sl@0
|
518 |
{
|
|
sl@0
|
519 |
break;
|
|
sl@0
|
520 |
}
|
|
sl@0
|
521 |
++pointerToSourceByte;
|
|
sl@0
|
522 |
++pointerToTargetByte;
|
|
sl@0
|
523 |
}
|
|
sl@0
|
524 |
aDescriptor.SetLength((descriptorLength/3)*2);
|
|
sl@0
|
525 |
}
|
|
sl@0
|
526 |
|
|
sl@0
|
527 |
TInt CEucjpPackedConverterImpl::ConvertToUnicode(
|
|
sl@0
|
528 |
CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters,
|
|
sl@0
|
529 |
TDes16& aUnicode,
|
|
sl@0
|
530 |
const TDesC8& aForeign,
|
|
sl@0
|
531 |
TInt& /*aState*/,
|
|
sl@0
|
532 |
TInt& aNumberOfUnconvertibleCharacters,
|
|
sl@0
|
533 |
TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter)
|
|
sl@0
|
534 |
{
|
|
sl@0
|
535 |
TFixedArray<CnvUtilities::SMethod, 4> methods;
|
|
sl@0
|
536 |
methods[0].iNumberOfBytesAbleToConvert=NumberOfBytesAbleToConvertToJisRoman;
|
|
sl@0
|
537 |
methods[0].iConvertToIntermediateBufferInPlace=DummyConvertToIntermediateBufferInPlace;
|
|
sl@0
|
538 |
methods[0].iConversionData=&CnvJisRoman::ConversionData();
|
|
sl@0
|
539 |
methods[0].iNumberOfBytesPerCharacter=1;
|
|
sl@0
|
540 |
methods[0].iNumberOfCoreBytesPerCharacter=1;
|
|
sl@0
|
541 |
methods[1].iNumberOfBytesAbleToConvert=NumberOfBytesAbleToConvertToJisX0208;
|
|
sl@0
|
542 |
methods[1].iConvertToIntermediateBufferInPlace=ConvertToJisX0208FromEucJpPackedInPlace;
|
|
sl@0
|
543 |
methods[1].iConversionData=&CnvJisX0208::ConversionData();
|
|
sl@0
|
544 |
methods[1].iNumberOfBytesPerCharacter=2;
|
|
sl@0
|
545 |
methods[1].iNumberOfCoreBytesPerCharacter=2;
|
|
sl@0
|
546 |
methods[2].iNumberOfBytesAbleToConvert=NumberOfBytesAbleToConvertToHalfWidthKatakana8;
|
|
sl@0
|
547 |
methods[2].iConvertToIntermediateBufferInPlace=ConvertToHalfWidthKatakana8FromEucJpPackedInPlace;
|
|
sl@0
|
548 |
methods[2].iConversionData=&CnvHalfWidthKatakana8::ConversionData();
|
|
sl@0
|
549 |
methods[2].iNumberOfBytesPerCharacter=2;
|
|
sl@0
|
550 |
methods[2].iNumberOfCoreBytesPerCharacter=1;
|
|
sl@0
|
551 |
methods[3].iNumberOfBytesAbleToConvert=NumberOfBytesAbleToConvertToJisX0212;
|
|
sl@0
|
552 |
methods[3].iConvertToIntermediateBufferInPlace=ConvertToJisX0212FromEucJpPackedInPlace;
|
|
sl@0
|
553 |
methods[3].iConversionData=&CnvJisX0212::ConversionData();
|
|
sl@0
|
554 |
methods[3].iNumberOfBytesPerCharacter=3;
|
|
sl@0
|
555 |
methods[3].iNumberOfCoreBytesPerCharacter=2;
|
|
sl@0
|
556 |
return CnvUtilities::ConvertToUnicodeFromHeterogeneousForeign(aDefaultEndiannessOfForeignCharacters, aUnicode, aForeign, aNumberOfUnconvertibleCharacters, aIndexOfFirstByteOfFirstUnconvertibleCharacter, methods.Array());
|
|
sl@0
|
557 |
}
|
|
sl@0
|
558 |
|
|
sl@0
|
559 |
TBool CEucjpPackedConverterImpl::IsInThisCharacterSetL(
|
|
sl@0
|
560 |
TBool& aSetToTrue,
|
|
sl@0
|
561 |
TInt& aConfidenceLevel,
|
|
sl@0
|
562 |
const TDesC8& aSample)
|
|
sl@0
|
563 |
{
|
|
sl@0
|
564 |
aSetToTrue=ETrue;
|
|
sl@0
|
565 |
// check for the SS2 and SS3 which specifies Code Set 2 & 3 respectively from the Code space
|
|
sl@0
|
566 |
// between 00-7f only... then ambiguous
|
|
sl@0
|
567 |
aSetToTrue = ETrue;
|
|
sl@0
|
568 |
TInt sampleLength = aSample.Length();
|
|
sl@0
|
569 |
TInt eucjpPacked = 0;
|
|
sl@0
|
570 |
aConfidenceLevel = 0;
|
|
sl@0
|
571 |
|
|
sl@0
|
572 |
for (TInt i = 0; i < sampleLength; ++i)
|
|
sl@0
|
573 |
{
|
|
sl@0
|
574 |
// Code set 1 JISX 0208 support
|
|
sl@0
|
575 |
TInt increment1 = i+1;
|
|
sl@0
|
576 |
if (increment1 >= sampleLength)
|
|
sl@0
|
577 |
break;
|
|
sl@0
|
578 |
if (((aSample[i] >= 0xa1) && (aSample[i] <= 0xfe)) &&
|
|
sl@0
|
579 |
((aSample[increment1] >= 0xa1) && (aSample[increment1] <= 0xfe)))
|
|
sl@0
|
580 |
{
|
|
sl@0
|
581 |
eucjpPacked = eucjpPacked +2;
|
|
sl@0
|
582 |
i++;
|
|
sl@0
|
583 |
}
|
|
sl@0
|
584 |
// Single Shift 2 (SS2) sequence - Code Set 2
|
|
sl@0
|
585 |
if (aSample[i]==0x8e)
|
|
sl@0
|
586 |
{
|
|
sl@0
|
587 |
TInt increment1 = i+1;
|
|
sl@0
|
588 |
if (increment1 >= sampleLength)
|
|
sl@0
|
589 |
break;
|
|
sl@0
|
590 |
if ((aSample[increment1] >= 0xa1) && (aSample[increment1] <= 0xdf))
|
|
sl@0
|
591 |
{
|
|
sl@0
|
592 |
eucjpPacked = eucjpPacked+2;
|
|
sl@0
|
593 |
i++;
|
|
sl@0
|
594 |
}
|
|
sl@0
|
595 |
else
|
|
sl@0
|
596 |
{
|
|
sl@0
|
597 |
eucjpPacked = 0;
|
|
sl@0
|
598 |
break;
|
|
sl@0
|
599 |
}
|
|
sl@0
|
600 |
}
|
|
sl@0
|
601 |
// Single Shift 3 (SS3) sequence - Code Set 3
|
|
sl@0
|
602 |
if (aSample[i]==0x8f)
|
|
sl@0
|
603 |
{
|
|
sl@0
|
604 |
TInt increment1 = i+1;
|
|
sl@0
|
605 |
TInt increment2 = i+2;
|
|
sl@0
|
606 |
if ((increment1 >= sampleLength) || (increment2 >= sampleLength))
|
|
sl@0
|
607 |
break;
|
|
sl@0
|
608 |
if (((aSample[increment1] >= 0xa1) && (aSample[increment1] <= 0xfe)) &&
|
|
sl@0
|
609 |
((aSample[increment2] >= 0xa1) && (aSample[increment2] <= 0xfe)))
|
|
sl@0
|
610 |
{
|
|
sl@0
|
611 |
eucjpPacked = eucjpPacked +3;
|
|
sl@0
|
612 |
i+=2;
|
|
sl@0
|
613 |
}
|
|
sl@0
|
614 |
else
|
|
sl@0
|
615 |
{
|
|
sl@0
|
616 |
eucjpPacked =0;
|
|
sl@0
|
617 |
break;
|
|
sl@0
|
618 |
}
|
|
sl@0
|
619 |
}
|
|
sl@0
|
620 |
}
|
|
sl@0
|
621 |
if (eucjpPacked)
|
|
sl@0
|
622 |
aConfidenceLevel = (eucjpPacked*100)/sampleLength;
|
|
sl@0
|
623 |
else
|
|
sl@0
|
624 |
aConfidenceLevel = 0;
|
|
sl@0
|
625 |
aConfidenceLevel=(aConfidenceLevel >100)?100:aConfidenceLevel;
|
|
sl@0
|
626 |
return ETrue;
|
|
sl@0
|
627 |
}
|
|
sl@0
|
628 |
|
|
sl@0
|
629 |
CEucjpPackedConverterImpl* CEucjpPackedConverterImpl::NewL()
|
|
sl@0
|
630 |
{
|
|
sl@0
|
631 |
CEucjpPackedConverterImpl* self = new(ELeave) CEucjpPackedConverterImpl();
|
|
sl@0
|
632 |
return self;
|
|
sl@0
|
633 |
}
|
|
sl@0
|
634 |
|
|
sl@0
|
635 |
CEucjpPackedConverterImpl::~CEucjpPackedConverterImpl()
|
|
sl@0
|
636 |
{
|
|
sl@0
|
637 |
}
|
|
sl@0
|
638 |
|
|
sl@0
|
639 |
CEucjpPackedConverterImpl::CEucjpPackedConverterImpl()
|
|
sl@0
|
640 |
{
|
|
sl@0
|
641 |
}
|
|
sl@0
|
642 |
|
|
sl@0
|
643 |
const TImplementationProxy ImplementationTable[] =
|
|
sl@0
|
644 |
{
|
|
sl@0
|
645 |
IMPLEMENTATION_PROXY_ENTRY(0x10006067,CEucjpPackedConverterImpl::NewL)
|
|
sl@0
|
646 |
};
|
|
sl@0
|
647 |
|
|
sl@0
|
648 |
EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
|
|
sl@0
|
649 |
{
|
|
sl@0
|
650 |
aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
|
|
sl@0
|
651 |
|
|
sl@0
|
652 |
return ImplementationTable;
|
|
sl@0
|
653 |
}
|
|
sl@0
|
654 |
|