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37 #ifndef nsGBK2312ToUnicode_h___
38 #define nsGBK2312ToUnicode_h___
41 #include "nsIUnicodeDecoder.h"
42 #include "nsUCSupport.h"
45 //----------------------------------------------------------------------
46 // Class nsGBKToUnicode [declaration]
49 * A character set converter from GBK to Unicode.
52 * @created 07/Sept/1999
53 * @author Yueheng Xu, Yueheng.Xu@intel.com
55 class nsGBKToUnicode
: public nsBufferDecoderSupport
62 nsGBKToUnicode() : nsBufferDecoderSupport(1)
64 mExtensionDecoder
= nsnull
;
65 m4BytesDecoder
= nsnull
;
70 //--------------------------------------------------------------------
71 // Subclassing of nsDecoderSupport class [declaration]
72 NS_IMETHOD
ConvertNoBuff(const char* aSrc
, PRInt32
* aSrcLength
, PRUnichar
*aDest
, PRInt32
* aDestLength
);
76 nsCOMPtr
<nsIUnicodeDecoder
> mExtensionDecoder
;
77 nsCOMPtr
<nsIUnicodeDecoder
> m4BytesDecoder
;
79 virtual void CreateExtensionDecoder();
80 virtual void Create4BytesDecoder();
81 PRBool
TryExtensionDecoder(const char* aSrc
, PRUnichar
* aDest
);
82 PRBool
Try4BytesDecoder(const char* aSrc
, PRUnichar
* aDest
);
83 virtual PRBool
DecodeToSurrogate(const char* aSrc
, PRUnichar
* aDest
);
88 class nsGB18030ToUnicode
: public nsGBKToUnicode
91 nsGB18030ToUnicode() {}
92 virtual ~nsGB18030ToUnicode() {}
94 virtual void CreateExtensionDecoder();
95 virtual void Create4BytesDecoder();
96 virtual PRBool
DecodeToSurrogate(const char* aSrc
, PRUnichar
* aDest
);
99 #endif /* nsGBK2312ToUnicode_h___ */