gecko/intl/uconv/ucvcn/nsGBKToUnicode.h

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/* -*- Mode: C; tab-width: 4; 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.org 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
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* ***** END LICENSE BLOCK ***** */
#ifndef nsGBK2312ToUnicode_h___
#define nsGBK2312ToUnicode_h___
#include "nsCOMPtr.h"
#include "nsIUnicodeDecoder.h"
#include "nsUCSupport.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() : nsBufferDecoderSupport(1)
{
mExtensionDecoder = nsnull;
m4BytesDecoder = nsnull;
}
protected:
//--------------------------------------------------------------------
// Subclassing of nsDecoderSupport class [declaration]
NS_IMETHOD ConvertNoBuff(const char* aSrc, PRInt32 * aSrcLength, PRUnichar *aDest, PRInt32 * aDestLength);
protected:
nsGBKConvUtil mUtil;
nsCOMPtr<nsIUnicodeDecoder> mExtensionDecoder;
nsCOMPtr<nsIUnicodeDecoder> m4BytesDecoder;
virtual void CreateExtensionDecoder();
virtual void Create4BytesDecoder();
bool TryExtensionDecoder(const char* aSrc, PRUnichar* aDest);
bool Try4BytesDecoder(const char* aSrc, PRUnichar* aDest);
virtual bool DecodeToSurrogate(const char* aSrc, PRUnichar* aDest);
};
class nsGB18030ToUnicode : public nsGBKToUnicode
{
public:
nsGB18030ToUnicode() {}
virtual ~nsGB18030ToUnicode() {}
protected:
virtual void CreateExtensionDecoder();
virtual void Create4BytesDecoder();
virtual bool DecodeToSurrogate(const char* aSrc, PRUnichar* aDest);
};
#endif /* nsGBK2312ToUnicode_h___ */