gecko-dev/intl/uconv/ucvcn/nsGBKToUnicode.h

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/* -*- Mode: C; tab-width: 4; 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.org 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 nsGBK2312ToUnicode_h___
#define nsGBK2312ToUnicode_h___
#include "nsCOMPtr.h"
#include "nsIUnicodeDecoder.h"
#include "nsUCvCnSupport.h"
#include "gbku.h"
//----------------------------------------------------------------------
// Class nsGBKToUnicode [declaration]
/**
* A character set converter from GBK to Unicode.
*
*
* @created 07/Sept/1999
* @author Yueheng Xu, Yueheng.Xu@intel.com
*/
class nsGBKToUnicode : public nsBufferDecoderSupport
{
public:
/**
* Class constructor.
*/
nsGBKToUnicode()
{
mExtensionDecoder = nsnull;
m4BytesDecoder = nsnull;
};
protected:
//--------------------------------------------------------------------
// Subclassing of nsDecoderSupport class [declaration]
NS_IMETHOD ConvertNoBuff(const char* aSrc, PRInt32 * aSrcLength, PRUnichar *aDest, PRInt32 * aDestLength);
NS_IMETHOD GetMaxLength(const char * aSrc, PRInt32 aSrcLength,
PRInt32 * aDestLength);
protected:
nsGBKConvUtil mUtil;
nsCOMPtr<nsIUnicodeDecoder> mExtensionDecoder;
nsCOMPtr<nsIUnicodeDecoder> m4BytesDecoder;
virtual void CreateExtensionDecoder();
virtual void Create4BytesDecoder();
PRBool TryExtensionDecoder(const char* aSrc, PRUnichar* aDest);
PRBool Try4BytesDecoder(const char* aSrc, PRUnichar* aDest);
};
class nsGB18030ToUnicode : public nsGBKToUnicode
{
public:
nsGB18030ToUnicode() {};
virtual ~nsGB18030ToUnicode() {};
protected:
virtual void CreateExtensionDecoder();
virtual void Create4BytesDecoder();
};
#endif /* nsGBK2312ToUnicode_h___ */