File indexing completed on 2024-04-28 03:53:04

 /*
     The Original Code is mozilla.org code.
 
     SPDX-FileCopyrightText: 1998 Netscape Communications Corporation
 
     SPDX-License-Identifier: MPL-1.1 OR GPL-2.0-or-later OR LGPL-2.1-or-later
 */
 
 // for S-JIS encoding, observe characteristic:
 // 1, kana character (or hankaku?) often have high frequency of appearance
 // 2, kana character often exist in group
 // 3, certain combination of kana is never used in japanese language
 
 #ifndef nsSJISProber_h__
 #define nsSJISProber_h__
 
 #include "CharDistribution.h"
 #include "JpCntx.h"
 #include "nsCharSetProber.h"
 #include "nsCodingStateMachine.h"
 
 namespace kencodingprober
 {
 class KCODECS_NO_EXPORT nsSJISProber : public nsCharSetProber
 {
 public:
     nsSJISProber(void)
     {
         mCodingSM = new nsCodingStateMachine(&SJISSMModel);
         Reset();
     }
     ~nsSJISProber(void) override
     {
         delete mCodingSM;
     }
     nsProbingState HandleData(const char *aBuf, unsigned int aLen) override;
     const char *GetCharSetName() override
     {
         return "Shift_JIS";
     }
     nsProbingState GetState(void) override
     {
         return mState;
     }
     void Reset(void) override;
     float GetConfidence(void) override;
     void SetOpion() override
     {
     }
 
 protected:
     nsCodingStateMachine *mCodingSM;
     nsProbingState mState;
 
     SJISContextAnalysis mContextAnalyser;
     SJISDistributionAnalysis mDistributionAnalyser;
 
     char mLastChar[2];
 };
 }
 
 #endif /* nsSJISProber_h__ */