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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/. */

 // for S-JIS encoding, obeserve characteristic:

 // 1, kana character (or hankaku?) often have hight frequency of appereance

 // 2, kana character often exist in group

 // 3, certain combination of kana is never used in japanese language

 #ifndef nsEUCJPProber_h__

 #define nsEUCJPProber_h__

 #include "nsCharSetProber.h"

 #include "nsCodingStateMachine.h"

 #include "JpCntx.h"

 #include "CharDistribution.h"

 class nsEUCJPProber: public nsCharSetProber {

 public:

   nsEUCJPProber(bool aIsPreferredLanguage)

     :mIsPreferredLanguage(aIsPreferredLanguage)

   {mCodingSM = new nsCodingStateMachine(&EUCJPSMModel);

     Reset();}

   virtual ~nsEUCJPProber(void){delete mCodingSM;}

   nsProbingState HandleData(const char* aBuf, uint32_t aLen);

   const char* GetCharSetName() {return "EUC-JP";}

   nsProbingState GetState(void) {return mState;}

   void      Reset(void);

   float     GetConfidence(void);

 protected:

   nsCodingStateMachine* mCodingSM;

   nsProbingState mState;

   EUCJPContextAnalysis mContextAnalyser;

   EUCJPDistributionAnalysis mDistributionAnalyser;

   char mLastChar[2];

   bool mIsPreferredLanguage;

 };

 #endif /* nsEUCJPProber_h__ */