michael@0: /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: // for S-JIS encoding, obeserve characteristic:
michael@0: // 1, kana character (or hankaku?) often have hight frequency of appereance
michael@0: // 2, kana character often exist in group
michael@0: // 3, certain combination of kana is never used in japanese language
michael@0: 
michael@0: #ifndef nsEUCJPProber_h__
michael@0: #define nsEUCJPProber_h__
michael@0: 
michael@0: #include "nsCharSetProber.h"
michael@0: #include "nsCodingStateMachine.h"
michael@0: #include "JpCntx.h"
michael@0: #include "CharDistribution.h"
michael@0: 
michael@0: class nsEUCJPProber: public nsCharSetProber {
michael@0: public:
michael@0:   nsEUCJPProber(bool aIsPreferredLanguage)
michael@0:     :mIsPreferredLanguage(aIsPreferredLanguage)
michael@0:   {mCodingSM = new nsCodingStateMachine(&EUCJPSMModel);
michael@0:     Reset();}
michael@0:   virtual ~nsEUCJPProber(void){delete mCodingSM;}
michael@0:   nsProbingState HandleData(const char* aBuf, uint32_t aLen);
michael@0:   const char* GetCharSetName() {return "EUC-JP";}
michael@0:   nsProbingState GetState(void) {return mState;}
michael@0:   void      Reset(void);
michael@0:   float     GetConfidence(void);
michael@0: 
michael@0: protected:
michael@0:   nsCodingStateMachine* mCodingSM;
michael@0:   nsProbingState mState;
michael@0: 
michael@0:   EUCJPContextAnalysis mContextAnalyser;
michael@0:   EUCJPDistributionAnalysis mDistributionAnalyser;
michael@0: 
michael@0:   char mLastChar[2];
michael@0:   bool mIsPreferredLanguage;
michael@0: };
michael@0: 
michael@0: 
michael@0: #endif /* nsEUCJPProber_h__ */
michael@0: