mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-02 15:15:23 +00:00
423 lines
11 KiB
C++
423 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is Mozilla Communicator client code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape Communications
|
|
* Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#ifndef nsUCvJaSupport_h___
|
|
#define nsUCvJaSupport_h___
|
|
|
|
#include "nsIUnicodeEncoder.h"
|
|
#include "nsIUnicodeDecoder.h"
|
|
#include "nsIUnicodeEncodeHelper.h"
|
|
#include "nsIUnicodeDecodeHelper.h"
|
|
#include "nsICharRepresentable.h"
|
|
|
|
#define ONE_BYTE_TABLE_SIZE 256
|
|
|
|
//----------------------------------------------------------------------
|
|
// Class nsBasicDecoderSupport [declaration]
|
|
|
|
/**
|
|
* Support class for the Unicode decoders.
|
|
*
|
|
* The class source files for this class are in /ucvlatin/nsUCvJaSupport.
|
|
* However, because these objects requires non-xpcom subclassing, local copies
|
|
* will be made into the other directories using them. Just don't forget to
|
|
* keep in sync with the master copy!
|
|
*
|
|
* This class implements:
|
|
* - nsISupports
|
|
* - nsIUnicodeDecoder
|
|
*
|
|
* @created 19/Apr/1999
|
|
* @author Catalin Rotaru [CATA]
|
|
*/
|
|
class nsBasicDecoderSupport : public nsIUnicodeDecoder
|
|
{
|
|
NS_DECL_ISUPPORTS
|
|
|
|
public:
|
|
|
|
/**
|
|
* Class constructor.
|
|
*/
|
|
nsBasicDecoderSupport();
|
|
|
|
/**
|
|
* Class destructor.
|
|
*/
|
|
virtual ~nsBasicDecoderSupport();
|
|
|
|
//--------------------------------------------------------------------
|
|
// Interface nsIUnicodeDecoder [declaration]
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Class nsBufferDecoderSupport [declaration]
|
|
|
|
/**
|
|
* Support class for the Unicode decoders.
|
|
*
|
|
* This class implements:
|
|
* - the buffer management
|
|
*
|
|
* @created 15/Mar/1999
|
|
* @author Catalin Rotaru [CATA]
|
|
*/
|
|
class nsBufferDecoderSupport : public nsBasicDecoderSupport
|
|
{
|
|
protected:
|
|
|
|
/**
|
|
* Internal buffer for partial conversions.
|
|
*/
|
|
char * mBuffer;
|
|
PRInt32 mBufferCapacity;
|
|
PRInt32 mBufferLength;
|
|
|
|
/**
|
|
* Convert method but *without* the buffer management stuff.
|
|
*/
|
|
NS_IMETHOD ConvertNoBuff(const char * aSrc, PRInt32 * aSrcLength,
|
|
PRUnichar * aDest, PRInt32 * aDestLength) = 0;
|
|
|
|
void FillBuffer(const char ** aSrc, PRInt32 aSrcLength);
|
|
void DoubleBuffer();
|
|
|
|
public:
|
|
|
|
/**
|
|
* Class constructor.
|
|
*/
|
|
nsBufferDecoderSupport();
|
|
|
|
/**
|
|
* Class destructor.
|
|
*/
|
|
virtual ~nsBufferDecoderSupport();
|
|
|
|
//--------------------------------------------------------------------
|
|
// Interface nsIUnicodeDecoder [declaration]
|
|
|
|
NS_IMETHOD Convert(const char * aSrc, PRInt32 * aSrcLength,
|
|
PRUnichar * aDest, PRInt32 * aDestLength);
|
|
NS_IMETHOD Reset();
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Class nsTableDecoderSupport [declaration]
|
|
|
|
/**
|
|
* Support class for a single-table-driven Unicode decoder.
|
|
*
|
|
* @created 15/Mar/1999
|
|
* @author Catalin Rotaru [CATA]
|
|
*/
|
|
class nsTableDecoderSupport : public nsBufferDecoderSupport
|
|
{
|
|
public:
|
|
|
|
/**
|
|
* Class constructor.
|
|
*/
|
|
nsTableDecoderSupport(uShiftTable * aShiftTable,
|
|
uMappingTable * aMappingTable);
|
|
|
|
/**
|
|
* Class destructor.
|
|
*/
|
|
virtual ~nsTableDecoderSupport();
|
|
|
|
protected:
|
|
|
|
nsIUnicodeDecodeHelper * mHelper; // decoder helper object
|
|
uShiftTable * mShiftTable;
|
|
uMappingTable * mMappingTable;
|
|
|
|
//--------------------------------------------------------------------
|
|
// Subclassing of nsBufferDecoderSupport class [declaration]
|
|
|
|
NS_IMETHOD ConvertNoBuff(const char * aSrc, PRInt32 * aSrcLength,
|
|
PRUnichar * aDest, PRInt32 * aDestLength);
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Class nsMultiTableDecoderSupport [declaration]
|
|
|
|
/**
|
|
* Support class for a multi-table-driven Unicode decoder.
|
|
*
|
|
* @created 24/Mar/1999
|
|
* @author Catalin Rotaru [CATA]
|
|
*/
|
|
class nsMultiTableDecoderSupport : public nsBufferDecoderSupport
|
|
{
|
|
public:
|
|
|
|
/**
|
|
* Class constructor.
|
|
*/
|
|
nsMultiTableDecoderSupport(PRInt32 aTableCount, uRange * aRangeArray,
|
|
uShiftTable ** aShiftTable, uMappingTable ** aMappingTable);
|
|
|
|
/**
|
|
* Class destructor.
|
|
*/
|
|
virtual ~nsMultiTableDecoderSupport();
|
|
|
|
protected:
|
|
|
|
nsIUnicodeDecodeHelper * mHelper; // decoder helper object
|
|
PRInt32 mTableCount;
|
|
uRange * mRangeArray;
|
|
uShiftTable ** mShiftTable;
|
|
uMappingTable ** mMappingTable;
|
|
|
|
//--------------------------------------------------------------------
|
|
// Subclassing of nsBufferDecoderSupport class [declaration]
|
|
|
|
NS_IMETHOD ConvertNoBuff(const char * aSrc, PRInt32 * aSrcLength,
|
|
PRUnichar * aDest, PRInt32 * aDestLength);
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Class nsBufferDecoderSupport [declaration]
|
|
|
|
/**
|
|
* Support class for a single-byte Unicode decoder.
|
|
*
|
|
* @created 19/Apr/1999
|
|
* @author Catalin Rotaru [CATA]
|
|
*/
|
|
class nsOneByteDecoderSupport : public nsBasicDecoderSupport
|
|
{
|
|
public:
|
|
|
|
/**
|
|
* Class constructor.
|
|
*/
|
|
nsOneByteDecoderSupport(uShiftTable * aShiftTable,
|
|
uMappingTable * aMappingTable);
|
|
|
|
/**
|
|
* Class destructor.
|
|
*/
|
|
virtual ~nsOneByteDecoderSupport();
|
|
|
|
protected:
|
|
|
|
nsIUnicodeDecodeHelper * mHelper; // decoder helper object
|
|
uShiftTable * mShiftTable;
|
|
uMappingTable * mMappingTable;
|
|
PRUnichar mFastTable[ONE_BYTE_TABLE_SIZE];
|
|
|
|
//--------------------------------------------------------------------
|
|
// Subclassing of nsBasicDecoderSupport class [declaration]
|
|
|
|
NS_IMETHOD Convert(const char * aSrc, PRInt32 * aSrcLength,
|
|
PRUnichar * aDest, PRInt32 * aDestLength);
|
|
NS_IMETHOD GetMaxLength(const char * aSrc, PRInt32 aSrcLength,
|
|
PRInt32 * aDestLength);
|
|
NS_IMETHOD Reset();
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Class nsBasicEncoder [declaration]
|
|
|
|
class nsBasicEncoder : public nsIUnicodeEncoder, public nsICharRepresentable
|
|
{
|
|
NS_DECL_ISUPPORTS
|
|
|
|
public:
|
|
/**
|
|
* Class constructor.
|
|
*/
|
|
nsBasicEncoder();
|
|
|
|
/**
|
|
* Class destructor.
|
|
*/
|
|
virtual ~nsBasicEncoder();
|
|
|
|
};
|
|
//----------------------------------------------------------------------
|
|
// Class nsEncoderSupport [declaration]
|
|
|
|
/**
|
|
* Support class for the Unicode encoders.
|
|
*
|
|
* This class implements:
|
|
* - nsISupports
|
|
* - the buffer management
|
|
* - error handling procedure(s)
|
|
*
|
|
* @created 17/Feb/1999
|
|
* @author Catalin Rotaru [CATA]
|
|
*/
|
|
class nsEncoderSupport : public nsBasicEncoder
|
|
{
|
|
|
|
protected:
|
|
|
|
/**
|
|
* Internal buffer for partial conversions.
|
|
*/
|
|
char * mBuffer;
|
|
PRInt32 mBufferCapacity;
|
|
char * mBufferStart;
|
|
char * mBufferEnd;
|
|
|
|
/**
|
|
* Error handling stuff
|
|
*/
|
|
PRInt32 mErrBehavior;
|
|
nsIUnicharEncoder * mErrEncoder;
|
|
PRUnichar mErrChar;
|
|
|
|
/**
|
|
* Convert method but *without* the buffer management stuff and *with*
|
|
* error handling stuff.
|
|
*/
|
|
NS_IMETHOD ConvertNoBuff(const PRUnichar * aSrc, PRInt32 * aSrcLength,
|
|
char * aDest, PRInt32 * aDestLength);
|
|
|
|
/**
|
|
* Convert method but *without* the buffer management stuff and *without*
|
|
* error handling stuff.
|
|
*/
|
|
NS_IMETHOD ConvertNoBuffNoErr(const PRUnichar * aSrc, PRInt32 * aSrcLength,
|
|
char * aDest, PRInt32 * aDestLength) = 0;
|
|
|
|
/**
|
|
* Finish method but *without* the buffer management stuff.
|
|
*/
|
|
NS_IMETHOD FinishNoBuff(char * aDest, PRInt32 * aDestLength);
|
|
|
|
/**
|
|
* Copy as much as possible from the internal buffer to the destination.
|
|
*/
|
|
nsresult FlushBuffer(char ** aDest, const char * aDestEnd);
|
|
|
|
public:
|
|
|
|
/**
|
|
* Class constructor.
|
|
*/
|
|
nsEncoderSupport();
|
|
|
|
/**
|
|
* Class destructor.
|
|
*/
|
|
virtual ~nsEncoderSupport();
|
|
|
|
//--------------------------------------------------------------------
|
|
// Interface nsIUnicodeEncoder [declaration]
|
|
|
|
NS_IMETHOD Convert(const PRUnichar * aSrc, PRInt32 * aSrcLength,
|
|
char * aDest, PRInt32 * aDestLength);
|
|
NS_IMETHOD Finish(char * aDest, PRInt32 * aDestLength);
|
|
NS_IMETHOD Reset();
|
|
NS_IMETHOD SetOutputErrorBehavior(PRInt32 aBehavior,
|
|
nsIUnicharEncoder * aEncoder, PRUnichar aChar);
|
|
|
|
//--------------------------------------------------------------------
|
|
// Interface nsICharRepresentable [declaration]
|
|
NS_IMETHOD FillInfo(PRUint32 *aInfo) = 0;
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Class nsTableEncoderSupport [declaration]
|
|
|
|
/**
|
|
* Support class for a single-table-driven Unicode encoder.
|
|
*
|
|
* @created 17/Feb/1999
|
|
* @author Catalin Rotaru [CATA]
|
|
*/
|
|
class nsTableEncoderSupport : public nsEncoderSupport
|
|
{
|
|
public:
|
|
|
|
/**
|
|
* Class constructor.
|
|
*/
|
|
nsTableEncoderSupport(uShiftTable * aShiftTable,
|
|
uMappingTable * aMappingTable);
|
|
|
|
/**
|
|
* Class destructor.
|
|
*/
|
|
virtual ~nsTableEncoderSupport();
|
|
NS_IMETHOD FillInfo( PRUint32 *aInfo);
|
|
|
|
protected:
|
|
|
|
nsIUnicodeEncodeHelper * mHelper; // encoder helper object
|
|
uShiftTable * mShiftTable;
|
|
uMappingTable * mMappingTable;
|
|
|
|
//--------------------------------------------------------------------
|
|
// Subclassing of nsEncoderSupport class [declaration]
|
|
|
|
NS_IMETHOD ConvertNoBuffNoErr(const PRUnichar * aSrc, PRInt32 * aSrcLength,
|
|
char * aDest, PRInt32 * aDestLength);
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Class nsMultiTableEncoderSupport [declaration]
|
|
|
|
/**
|
|
* Support class for a multi-table-driven Unicode encoder.
|
|
*
|
|
* @created 11/Mar/1999
|
|
* @author Catalin Rotaru [CATA]
|
|
*/
|
|
class nsMultiTableEncoderSupport : public nsEncoderSupport
|
|
{
|
|
public:
|
|
|
|
/**
|
|
* Class constructor.
|
|
*/
|
|
nsMultiTableEncoderSupport(PRInt32 aTableCount, uShiftTable ** aShiftTable,
|
|
uMappingTable ** aMappingTable);
|
|
|
|
/**
|
|
* Class destructor.
|
|
*/
|
|
virtual ~nsMultiTableEncoderSupport();
|
|
NS_IMETHOD FillInfo( PRUint32 *aInfo);
|
|
|
|
protected:
|
|
|
|
nsIUnicodeEncodeHelper * mHelper; // encoder helper object
|
|
PRInt32 mTableCount;
|
|
uShiftTable ** mShiftTable;
|
|
uMappingTable ** mMappingTable;
|
|
|
|
//--------------------------------------------------------------------
|
|
// Subclassing of nsEncoderSupport class [declaration]
|
|
|
|
NS_IMETHOD ConvertNoBuffNoErr(const PRUnichar * aSrc, PRInt32 * aSrcLength,
|
|
char * aDest, PRInt32 * aDestLength);
|
|
};
|
|
|
|
#endif /* nsUCvJaSupport_h___ */
|