intl/uconv/src/nsUTF8ToUnicode.h

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  37
  38 #ifndef nsUTF8ToUnicode_h___
  39 #define nsUTF8ToUnicode_h___
  40
  41 // Class ID for our UTF8ToUnicode charset converter
  42 // {5534DDC0-DD96-11d2-8AAC-00600811A836}
  43 #define NS_UTF8TOUNICODE_CID \
  44   { 0x5534ddc0, 0xdd96, 0x11d2, {0x8a, 0xac, 0x0, 0x60, 0x8, 0x11, 0xa8, 0x36}}
  45
  46 #define NS_UTF8TOUNICODE_CONTRACTID "@mozilla.org/intl/unicode/decoder;1?charset=UTF-8"
  47
  48 //#define NS_ERROR_UCONV_NOUTF8TOUNICODE
  49 //  NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_UCONV, 0x31)
  50
  51 //----------------------------------------------------------------------
  52 // Class nsUTF8ToUnicode [declaration]
  53
  54
  55 /**
  56  * A character set converter from UTF8 to Unicode.
  57  *
  58  * @created         18/Mar/1998
  59  * @modified        04/Feb/2000
  60  * @author  Catalin Rotaru [CATA]
  61  */
  62
  63 class nsUTF8ToUnicode : public nsBasicDecoderSupport
  64 {
  65 public:
  66
  67   /**
  68    * Class constructor.
  69    */
  70   nsUTF8ToUnicode();
  71
  72 protected:
  73
  74   PRUint32 mUcs4; // cached Unicode character
  75   PRUint8 mState; // cached expected number of bytes per UTF8 character sequence
  76   PRUint8 mBytes;
  77   PRPackedBool mFirst;
  78
  79   //--------------------------------------------------------------------
  80   // Subclassing of nsDecoderSupport class [declaration]
  81
  82   NS_IMETHOD GetMaxLength(const char * aSrc, PRInt32 aSrcLength,
  83       PRInt32 * aDestLength);
  84
  85   //--------------------------------------------------------------------
  86   // Subclassing of nsBasicDecoderSupport class [declaration]
  87
  88   NS_IMETHOD Convert(const char * aSrc, PRInt32 * aSrcLength,
  89       PRUnichar * aDest, PRInt32 * aDestLength);
  90
  91   //--------------------------------------------------------------------
  92   // Subclassing of nsBasicDecoderSupport class [declaration]
  93
  94   NS_IMETHOD Reset();
  95
  96 };
  97
  98 #endif /* nsUTF8ToUnicode_h___ */
  99