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37 : #ifndef nsGBK2312ToUnicode_h___
38 : #define nsGBK2312ToUnicode_h___
39 :
40 : #include "nsCOMPtr.h"
41 : #include "nsIUnicodeDecoder.h"
42 : #include "nsUCSupport.h"
43 : #include "gbku.h"
44 :
45 : //----------------------------------------------------------------------
46 : // Class nsGBKToUnicode [declaration]
47 :
48 : /**
49 : * A character set converter from GBK to Unicode.
50 : *
51 : *
52 : * @created 07/Sept/1999
53 : * @author Yueheng Xu, Yueheng.Xu@intel.com
54 : */
55 : class nsGBKToUnicode : public nsBufferDecoderSupport
56 36 : {
57 : public:
58 :
59 : /**
60 : * Class constructor.
61 : */
62 12 : nsGBKToUnicode() : nsBufferDecoderSupport(1)
63 : {
64 12 : mExtensionDecoder = nsnull;
65 12 : m4BytesDecoder = nsnull;
66 12 : }
67 :
68 : protected:
69 :
70 : //--------------------------------------------------------------------
71 : // Subclassing of nsDecoderSupport class [declaration]
72 : NS_IMETHOD ConvertNoBuff(const char* aSrc, PRInt32 * aSrcLength, PRUnichar *aDest, PRInt32 * aDestLength);
73 :
74 : protected:
75 : nsGBKConvUtil mUtil;
76 : nsCOMPtr<nsIUnicodeDecoder> mExtensionDecoder;
77 : nsCOMPtr<nsIUnicodeDecoder> m4BytesDecoder;
78 :
79 : virtual void CreateExtensionDecoder();
80 : virtual void Create4BytesDecoder();
81 : bool TryExtensionDecoder(const char* aSrc, PRUnichar* aDest);
82 : bool Try4BytesDecoder(const char* aSrc, PRUnichar* aDest);
83 : virtual bool DecodeToSurrogate(const char* aSrc, PRUnichar* aDest);
84 :
85 : };
86 :
87 :
88 : class nsGB18030ToUnicode : public nsGBKToUnicode
89 : {
90 : public:
91 6 : nsGB18030ToUnicode() {}
92 18 : virtual ~nsGB18030ToUnicode() {}
93 : protected:
94 : virtual void CreateExtensionDecoder();
95 : virtual void Create4BytesDecoder();
96 : virtual bool DecodeToSurrogate(const char* aSrc, PRUnichar* aDest);
97 : };
98 :
99 : #endif /* nsGBK2312ToUnicode_h___ */
100 :
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