mirror of https://github.com/odrling/Aegisub
81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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// for S-JIS encoding, obeserve characteristic:
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// 1, kana character (or hankaku?) often have hight frequency of appereance
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// 2, kana character often exist in group
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// 3, certain combination of kana is never used in japanese language
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#ifndef nsSJISProber_h__
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#define nsSJISProber_h__
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#include "nsCharSetProber.h"
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#include "nsCodingStateMachine.h"
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#include "JpCntx.h"
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#include "CharDistribution.h"
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class nsSJISProber: public nsCharSetProber {
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public:
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nsSJISProber(PRBool aIsPreferredLanguage)
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:mIsPreferredLanguage(aIsPreferredLanguage)
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{mCodingSM = new nsCodingStateMachine(&SJISSMModel);
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Reset();}
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virtual ~nsSJISProber(void){delete mCodingSM;}
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nsProbingState HandleData(const char* aBuf, PRUint32 aLen);
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const char* GetCharSetName() {return "Shift_JIS";}
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nsProbingState GetState(void) {return mState;}
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void Reset(void);
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float GetConfidence(void);
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void SetOpion() {}
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protected:
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nsCodingStateMachine* mCodingSM;
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nsProbingState mState;
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SJISContextAnalysis mContextAnalyser;
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SJISDistributionAnalysis mDistributionAnalyser;
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char mLastChar[2];
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PRBool mIsPreferredLanguage;
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};
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#endif /* nsSJISProber_h__ */
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