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 * The Original Code is Mozilla Communicator client code.

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#ifndef nsUniversalDetector_h__

#define nsUniversalDetector_h__

class nsCharSetProber;

#define NUM_OF_CHARSET_PROBERS  3

typedef enum {

  ePureAscii = 0,

  eEscAscii  = 1,

  eHighbyte  = 2

} nsInputState;

class nsUniversalDetector {

public:

   nsUniversalDetector();

   virtual ~nsUniversalDetector();

   virtual nsresult HandleData(const char* aBuf, PRUint32 aLen);

   virtual void DataEnd(void);

protected:

   virtual void Report(const char* aCharset) = 0;

   virtual void Reset();

   nsInputState  mInputState;

   PRBool  mDone;

   PRBool  mInTag;

   PRBool  mStart;

   PRBool  mGotData;

   char    mLastChar;

   const char *  mDetectedCharset;

   PRInt32 mBestGuess;

   nsCharSetProber  *mCharSetProbers[NUM_OF_CHARSET_PROBERS];

   nsCharSetProber  *mEscCharSetProber;

};

#endif