1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 // for S-JIS encoding, obeserve characteristic: 7 // 1, kana character (or hankaku?) often have hight frequency of appereance 8 // 2, kana character often exist in group 9 // 3, certain combination of kana is never used in japanese language 10 11 #ifndef nsEUCJPProber_h__ 12 #define nsEUCJPProber_h__ 13 14 #include "nsCharSetProber.h" 15 #include "nsCodingStateMachine.h" 16 #include "JpCntx.h" 17 #include "CharDistribution.h" 18 19 class nsEUCJPProber: public nsCharSetProber { 20 public: nsEUCJPProber(bool aIsPreferredLanguage)21 nsEUCJPProber(bool aIsPreferredLanguage) 22 :mIsPreferredLanguage(aIsPreferredLanguage) 23 {mCodingSM = new nsCodingStateMachine(&EUCJPSMModel); 24 Reset();} ~nsEUCJPProber(void)25 virtual ~nsEUCJPProber(void){delete mCodingSM;} 26 nsProbingState HandleData(const char* aBuf, uint32_t aLen); GetCharSetName()27 const char* GetCharSetName() {return "EUC-JP";} GetState(void)28 nsProbingState GetState(void) {return mState;} 29 void Reset(void); 30 float GetConfidence(void); 31 32 protected: 33 nsCodingStateMachine* mCodingSM; 34 nsProbingState mState; 35 36 EUCJPContextAnalysis mContextAnalyser; 37 EUCJPDistributionAnalysis mDistributionAnalyser; 38 39 char mLastChar[2]; 40 bool mIsPreferredLanguage; 41 }; 42 43 44 #endif /* nsEUCJPProber_h__ */ 45 46