gecko/intl/uconv/ucvja/nsJapaneseToUnicode.h

192 lines
5.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsShiftJISToUnicode_h__
#define nsShiftJISToUnicode_h__
#include "nsISupports.h"
#include "nsUCSupport.h"
class nsJapaneseToUnicode : public nsBasicDecoderSupport
{
protected:
void setMapMode();
protected:
const PRUint16 * const *mMapIndex;
};
class nsShiftJISToUnicode : public nsJapaneseToUnicode
{
public:
nsShiftJISToUnicode()
{
mState=0; mData=0;
setMapMode();
}
virtual ~nsShiftJISToUnicode() {}
NS_IMETHOD Convert(const char * aSrc, PRInt32 * aSrcLength,
PRUnichar * aDest, PRInt32 * aDestLength) ;
NS_IMETHOD GetMaxLength(const char * aSrc, PRInt32 aSrcLength,
PRInt32 * aDestLength)
{
*aDestLength = aSrcLength;
return NS_OK;
}
NS_IMETHOD Reset()
{
mState = 0;
setMapMode();
return NS_OK;
}
private:
private:
PRInt32 mState;
PRInt32 mData;
};
class nsEUCJPToUnicodeV2 : public nsJapaneseToUnicode
{
public:
nsEUCJPToUnicodeV2()
{
mState=0; mData=0;
setMapMode();
}
virtual ~nsEUCJPToUnicodeV2() {}
NS_IMETHOD Convert(const char * aSrc, PRInt32 * aSrcLength,
PRUnichar * aDest, PRInt32 * aDestLength) ;
NS_IMETHOD GetMaxLength(const char * aSrc, PRInt32 aSrcLength,
PRInt32 * aDestLength)
{
*aDestLength = aSrcLength;
return NS_OK;
}
NS_IMETHOD Reset()
{
mState = 0;
setMapMode();
return NS_OK;
}
private:
PRInt32 mState;
PRInt32 mData;
};
class nsISO2022JPToUnicodeV2 : public nsJapaneseToUnicode
{
public:
nsISO2022JPToUnicodeV2()
{
mState = mState_ASCII;
mLastLegalState = mState_ASCII;
mData = 0;
mRunLength = 0;
G2charset = G2_unknown;
mGB2312Decoder = nsnull;
mEUCKRDecoder = nsnull;
mISO88597Decoder = nsnull;
setMapMode();
}
virtual ~nsISO2022JPToUnicodeV2()
{
NS_IF_RELEASE(mGB2312Decoder);
NS_IF_RELEASE(mEUCKRDecoder);
NS_IF_RELEASE(mISO88597Decoder);
}
NS_IMETHOD Convert(const char * aSrc, PRInt32 * aSrcLength,
PRUnichar * aDest, PRInt32 * aDestLength) ;
NS_IMETHOD GetMaxLength(const char * aSrc, PRInt32 aSrcLength,
PRInt32 * aDestLength)
{
*aDestLength = aSrcLength;
return NS_OK;
}
NS_IMETHOD Reset()
{
mState = mState_ASCII;
mLastLegalState = mState_ASCII;
mRunLength = 0;
setMapMode();
return NS_OK;
}
private:
enum {
mState_ASCII,
mState_ESC,
mState_ESC_28,
mState_ESC_24,
mState_ESC_24_28,
mState_JISX0201_1976Roman,
mState_JISX0201_1976Kana,
mState_JISX0208_1978,
mState_GB2312_1980,
mState_JISX0208_1983,
mState_KSC5601_1987,
mState_JISX0212_1990,
mState_JISX0208_1978_2ndbyte,
mState_GB2312_1980_2ndbyte,
mState_JISX0208_1983_2ndbyte,
mState_KSC5601_1987_2ndbyte,
mState_JISX0212_1990_2ndbyte,
mState_ESC_2e,
mState_ESC_4e,
mState_ERROR
} mState, mLastLegalState;
PRInt32 mData;
PRInt32 mRunLength; // the length of a non-ASCII run
enum {
G2_unknown,
G2_ISO88591,
G2_ISO88597
} G2charset;
nsIUnicodeDecoder *mGB2312Decoder;
nsIUnicodeDecoder *mEUCKRDecoder;
nsIUnicodeDecoder *mISO88597Decoder;
};
#endif // nsShiftJISToUnicode_h__