author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 02:02:46 +0200 | |
changeset 0 | 1fb32624e06b |
child 16 | 56cd22a7a1cb |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005 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 "SHIFTJIS2.H" |
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#include <convdata.h> |
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#include "CHARCONV_TLS.H" |
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#include "CHARCONV_TABLE_UTILITIES.H" |
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// Lead byte ranges for 2-Byte Shift-JIS sequences |
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const TUint KSingleByteRangeFirstBlockEnd=0x80; |
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const TUint KSingleByteRangeSecondBlockStart=0xa0; |
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const TUint KSingleByteRangeSecondBlockEnd=0xdf; |
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const TUint KLeadByteMax = 0xfc; |
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//Trail byte ranges for 2-Byte Shift-JIS sequences |
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const TUint KTrailByteMin = 0x40 ; |
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const TUint KTrailByteMax = 0xFC ; |
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const TUint KTrailByteIllegal = 0x7F ; |
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const TUint8 KSJISLineFeed = 0x0a ; // Shift-Jis value for Line Feed |
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const TUint8 KSJISCarriageReturn = 0x0d; // Shift-Jis value for Carriage Return |
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const TUint16 KUnicodeLineFeed = 0x2028; // Unicode Line Feed |
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const TUint16 KUnicodeParagraphSeperator = 0x2029; // Unicode Paragraph seperator |
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const TUint16 KUnicodeCarriageReturn = KSJISCarriageReturn ; |
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// Default replacement for any Unicode characters which can't be converted to Shift-JIS |
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_LIT8(KLit8ShiftJisReplacementForUnconvertibleUnicodeCharacters, "\x81\x48"); // fullwidth question mark |
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/** |
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* Get the Shift-JIS replacement for Unicode characters which cannot be converted |
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* |
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* @return const TDesC8& 8-bit descriptor containing the Shift-JIS data which will replace any untranslatable Unicode characters. |
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* @since Internationalization_6.2 |
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* @internalTechnology |
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*/ |
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EXPORT_C const TDesC8& CnvShiftJis::ReplacementForUnconvertibleUnicodeCharacters() |
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{ |
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return KLit8ShiftJisReplacementForUnconvertibleUnicodeCharacters ; |
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} |
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/** |
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* Converts text from Unicode to Shift-JIS |
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* |
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* @since Internationalization_6.2 |
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* @internalTechnology |
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*/ |
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EXPORT_C TInt CnvShiftJis::ConvertFromUnicode(CCnvCharacterSetConverter::TEndianness /* aDefaultEndiannessOfForeignCharacters */, |
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const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, TDes8& aForeign, |
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const TDesC16& aUnicode, |
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CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters) |
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{ |
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return DoConvertFromUnicode(aReplacementForUnconvertibleUnicodeCharacters, |
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aForeign, aUnicode, aIndicesOfUnconvertibleCharacters) ; |
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} |
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/** |
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* Converts text from Unicode to Shift-JIS |
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* Note that CnvShiftJis does NOT support extensions through use of additional character sets, |
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* instead multiple versions are built for the different (operator defined) implementations |
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* of Shift-JIS which need to be supported and the correct one installed at ROM build time, |
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* and this method is only supplied for purposes of interface compatibility. |
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* @since Internationalization_6.2 |
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* @internalTechnology |
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*/ |
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EXPORT_C TInt CnvShiftJis::ConvertFromUnicode(CCnvCharacterSetConverter::TEndianness /* aDefaultEndiannessOfForeignCharacters */, |
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const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, |
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TDes8& aForeign, const TDesC16& aUnicode, |
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CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters, |
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const TArray<CnvUtilities::SCharacterSet>& /* aArrayOfAdditionalCharacterSets */) |
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{ |
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return DoConvertFromUnicode(aReplacementForUnconvertibleUnicodeCharacters, |
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aForeign, aUnicode, aIndicesOfUnconvertibleCharacters) ; |
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} |
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EXPORT_C TInt CnvShiftJis::ConvertToUnicode(CCnvCharacterSetConverter::TEndianness /* aDefaultEndiannessOfForeignCharacters */, |
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TDes16& aUnicode, const TDesC8& aForeign, TInt& aNumberOfUnconvertibleCharacters, |
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TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter) |
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{ |
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return DoConvertToUnicode(aUnicode, aForeign, aNumberOfUnconvertibleCharacters, |
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aIndexOfFirstByteOfFirstUnconvertibleCharacter) ; |
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} |
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/** |
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* Converts text from Shift-JIS to Unicode |
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* |
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* @since Internationalization_6.2 |
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* @internalTechnology |
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*/ |
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EXPORT_C TInt CnvShiftJis::ConvertToUnicode(CCnvCharacterSetConverter::TEndianness /* aDefaultEndiannessOfForeignCharacters */, |
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TDes16& aUnicode, const TDesC8& aForeign, |
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TInt& aNumberOfUnconvertibleCharacters, |
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TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter, |
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const TArray<CnvUtilities::SMethod>& /* aArrayOfAdditionalMethods */) |
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{ |
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return DoConvertToUnicode(aUnicode, aForeign, aNumberOfUnconvertibleCharacters, |
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aIndexOfFirstByteOfFirstUnconvertibleCharacter) ; |
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} |
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129 |
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130 |
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131 |
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/** |
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This function actually does the work of converting Shift-JIS input to unicode output. |
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|
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@param TDes16& aUnicode The output buffer |
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@param const TDesC8& aForeign The input buffer |
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@param TInt& aNumberOfUnconvertibleCharacters Number of input characters which were processed but couldn't be converted. |
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@param TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter Locates first untranslatable character in input buffer |
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@return CCnvCharacterSetConverter::EErrorIllFormedInput if the input was invalid, otherwise the number of bytes in the input buffer which weren't be processed (e.g. due to output buffer overflow). |
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@internalTechnology |
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*/ |
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|
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TInt CnvShiftJis::DoConvertToUnicode(TDes16& aUnicode, const TDesC8& aForeign, |
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TInt& aNumberOfUnconvertibleCharacters, |
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TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter) |
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{ |
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TUint foreignBytePointer = 0 ; |
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TUint row ; |
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TUint column ; |
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TUint8 foreignCharByte ; |
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TUint8 foreignCharStart ; |
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TChar unicodeChar ; |
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TBool finished = EFalse ; |
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TInt charsConverted = 0 ; |
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TUint16 unicodeUnmappedCharacter = getUnicodeUnmappedCharacter() ; |
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TUint16 unicodeBufferLength = aUnicode.MaxLength() ; |
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TUint16 foreignDataLength = aForeign.Length() ; |
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|
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aIndexOfFirstByteOfFirstUnconvertibleCharacter = -1 ; |
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aNumberOfUnconvertibleCharacters = 0 ; |
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|
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// Check for valid input and output buffers |
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if (( unicodeBufferLength == 0) || foreignDataLength == 0) |
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{ |
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finished = ETrue ; |
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} |
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|
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// Reset output buffer |
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aUnicode.Zero() ; |
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|
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// Perform conversion |
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while (!finished) |
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{ |
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foreignCharStart = foreignBytePointer ; |
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foreignCharByte = aForeign[foreignBytePointer++] ; |
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|
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// Look for (and handle) CR/LF pairs in ShiftJis input stream. |
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// It is a specific requirement from Symbian KK that CR/LF pairs |
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// in the input stream be converted to Unicode LF characters |
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if((KSJISCarriageReturn == foreignCharByte) && (foreignBytePointer < foreignDataLength)) |
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{ |
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// check next byte |
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if(KSJISLineFeed == aForeign[foreignBytePointer]) |
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{ |
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// CR code |
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unicodeChar = KUnicodeLineFeed ; |
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foreignBytePointer++ ; |
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} |
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else |
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{ |
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unicodeChar = KUnicodeCarriageReturn ; |
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} |
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} |
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else |
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{ |
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if (((foreignCharByte > KSingleByteRangeFirstBlockEnd) && |
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(foreignCharByte < KSingleByteRangeSecondBlockStart)) || |
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((foreignCharByte > KSingleByteRangeSecondBlockEnd) && |
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(foreignCharByte <= KLeadByteMax))) |
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{ |
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if (foreignBytePointer < foreignDataLength) |
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{ |
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// Potential 2 byte shiftJis character |
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row = foreignCharByte ; |
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column = aForeign[foreignBytePointer] ; |
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if (((column <= KTrailByteMax) && (column >= KTrailByteMin)) && column != KTrailByteIllegal) |
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{ |
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foreignBytePointer++ ; |
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unicodeChar = lookupUnicodeChar(row,column) ; |
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} |
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else |
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212 |
{ |
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unicodeChar = unicodeUnmappedCharacter ; |
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} |
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} |
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else |
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217 |
{ |
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// Only got the first byte of a 2 byte character |
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// reset "read" pointer to beginning of character |
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// and bail out! |
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finished = ETrue ; |
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foreignBytePointer-- ; |
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continue ; |
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} |
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} |
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else |
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227 |
{ |
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//Probably a single byte shiftJis chracter |
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row = 0 ; |
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column = foreignCharByte ; |
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unicodeChar = lookupUnicodeChar(row,column) ; |
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} |
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} |
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234 |
|
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235 |
|
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// Check for unconvertible characters. |
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if (unicodeChar == unicodeUnmappedCharacter) |
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{ |
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if (aIndexOfFirstByteOfFirstUnconvertibleCharacter == -1) |
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240 |
{ |
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aIndexOfFirstByteOfFirstUnconvertibleCharacter = foreignCharStart ; |
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} |
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aNumberOfUnconvertibleCharacters++ ; |
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} |
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245 |
|
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// Append the converted (or not!) character to the output buffer |
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aUnicode.Append(unicodeChar); |
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charsConverted++ ; |
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249 |
|
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// Check for end of input buffer or output buffer full |
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if ((charsConverted >= unicodeBufferLength) || (foreignBytePointer >= foreignDataLength)) |
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finished = ETrue ; |
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} |
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254 |
|
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// Evaluate success of the operation and either return error code (currently just |
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// invalid input) or return number of un-processed characters in input buffer in |
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// case of output buffer being filled before input fully consumed (0 means all |
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// characters consumed) |
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TInt returnValue ; |
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if (foreignDataLength && !charsConverted) |
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261 |
{ |
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// Input must contain at least one complete character to be considered valid Shift-JIS. |
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returnValue = CCnvCharacterSetConverter::EErrorIllFormedInput ; |
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} |
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else |
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266 |
{ |
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returnValue = foreignDataLength - foreignBytePointer; |
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268 |
} |
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return returnValue ; |
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} |
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|
271 |
|
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|
272 |
|
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|
273 |
|
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|
274 |
|
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/** |
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This function actually does the work of converting converting unicode input to Shift-JIS output. |
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277 |
|
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@param const TDesC8& aReplacementForUnconvertibleUnicodeCharacters byte sequence to be be used as output for unicode characters which have no mapping defined. |
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@param TDes16& aUnicode The input buffer |
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@param const TDesC8& aForeign The output buffer |
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@return The number of unicode characters in the input buffer which weren't be processed (e.g. due to output buffer overflow). |
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282 |
@internalTechnology |
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283 |
*/ |
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TInt CnvShiftJis::DoConvertFromUnicode(const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, |
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TDes8& aForeign, const TDesC16& aUnicode, |
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286 |
CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters) |
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287 |
{ |
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TUint unicodePointer = 0 ; |
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TUint row ; |
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TUint column ; |
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TUint8 foreignCharByte ; |
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TUint16 foreignChar ; |
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TUint16 unicodeChar ; |
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TBool finished = EFalse ; |
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TInt charsConverted = 0 ; |
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TInt unicodeLength = aUnicode.Length() ; |
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TInt foreignMaxLength = aForeign.MaxLength() ; |
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TUint16 foreignUnmappedCharacter = getForeignUnmappedCharacter() ; |
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CCnvCharacterSetConverter::TDowngradeForExoticLineTerminatingCharacters downgradeForExoticLineTerminatingCharacters = CCnvCharacterSetConverter::EDowngradeExoticLineTerminatingCharactersToCarriageReturnLineFeed; |
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TBool downgradeExoticLineTerminatingCharacters = EFalse ; |
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|
301 |
|
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|
302 |
|
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303 |
// Check for valid input and output buffers |
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if ((unicodeLength == 0) || foreignMaxLength == 0) |
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|
305 |
{ |
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finished = ETrue ; |
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|
307 |
} |
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|
308 |
|
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309 |
// If we've been called from an instance of CCnvCharacterSetConverter we can retrieve its state |
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310 |
// from Thread Local Storage. This really isn't very nice but there's no other way we can get |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
311 |
// hold of settings like downgrade for unicode line termination characters without breaking |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
312 |
// compatibility with the existing plug-in interface! |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
313 |
CCnvCharacterSetConverter* currentCharacterSetConverter = (CCnvCharacterSetConverter*)TTlsData::CurrentCharacterSetConverter(); |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
314 |
if (currentCharacterSetConverter) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
315 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
316 |
downgradeForExoticLineTerminatingCharacters = currentCharacterSetConverter->GetDowngradeForExoticLineTerminatingCharacters() ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
317 |
downgradeExoticLineTerminatingCharacters = ETrue ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
318 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
319 |
|
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
320 |
// Reset output buffer |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
321 |
aForeign.Zero(); |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
322 |
|
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
323 |
// Process input buffer |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
324 |
while (!finished) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
325 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
326 |
|
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
327 |
// Look up foreign Char |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
328 |
unicodeChar = aUnicode[unicodePointer] ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
329 |
|
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
330 |
// Check for any downgrade of Unicode line endings characters required if we've got |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
331 |
// a Unicode Line-Feed or Paragraph-Seperator character to deal with. |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
332 |
if (downgradeExoticLineTerminatingCharacters && |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
333 |
((unicodeChar==KUnicodeLineFeed) || (unicodeChar==KUnicodeParagraphSeperator))) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
334 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
335 |
if (downgradeForExoticLineTerminatingCharacters == CCnvCharacterSetConverter::EDowngradeExoticLineTerminatingCharactersToCarriageReturnLineFeed) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
336 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
337 |
if (aForeign.Length() < (foreignMaxLength - 1)) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
338 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
339 |
aForeign.Append(KSJISCarriageReturn) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
340 |
aForeign.Append(KSJISLineFeed) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
341 |
charsConverted++ ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
342 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
343 |
else |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
344 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
345 |
// Foreign buffer full! |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
346 |
finished = ETrue; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
347 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
348 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
349 |
else if (downgradeForExoticLineTerminatingCharacters == CCnvCharacterSetConverter::EDowngradeExoticLineTerminatingCharactersToJustLineFeed) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
350 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
351 |
if (aForeign.Length() < foreignMaxLength) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
352 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
353 |
aForeign.Append(KSJISLineFeed) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
354 |
charsConverted++ ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
355 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
356 |
else |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
357 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
358 |
// Foreign buffer full! |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
359 |
finished = ETrue; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
360 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
361 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
362 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
363 |
else |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
364 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
365 |
row = unicodeChar / 256 ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
366 |
column = unicodeChar % 256 ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
367 |
foreignChar = lookupForeignChar(row, column) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
368 |
|
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
369 |
// Check for untranslatable character |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
370 |
if ((foreignChar == foreignUnmappedCharacter) && |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
(aForeign.Length() < (foreignMaxLength - 1))) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
373 |
aIndicesOfUnconvertibleCharacters.AppendIndex(unicodePointer) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
aForeign.Append(aReplacementForUnconvertibleUnicodeCharacters) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
376 |
else if ((foreignChar <= 0xFF) && (aForeign.Length() < foreignMaxLength)) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
378 |
// Single byte character |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
foreignCharByte = (TUint8) foreignChar ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
aForeign.Append(foreignCharByte) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
charsConverted++ ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
else if (aForeign.Length() < (foreignMaxLength - 1)) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
// Two byte character |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
foreignCharByte = (TUint8) (foreignChar >> 8 ) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
aForeign.Append(foreignCharByte) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
foreignCharByte = (TUint8) (foreignChar & 0xFF) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
aForeign.Append(foreignCharByte) ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
charsConverted++ ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
else |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
// Foreign buffer full! |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
finished = ETrue; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
|
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
// Check for terminating condition (input buffer consumed or output buffer full) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
if (!finished && (++unicodePointer >= unicodeLength)) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
{ |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
finished = ETrue ; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
|
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
// Return number of input characters *not* processsed (will be zero unless output |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
// buffer has been filled before all input consumed) |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
return unicodeLength - unicodePointer; |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
} |
1fb32624e06b
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |