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

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1.9 KiB
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#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 = nullptr;
m4BytesDecoder = nullptr;
}
protected:
//--------------------------------------------------------------------
// Subclassing of nsDecoderSupport class [declaration]
NS_IMETHOD ConvertNoBuff(const char* aSrc, int32_t * aSrcLength, PRUnichar *aDest, int32_t * 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___ */