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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
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 * http://www.mozilla.org/MPL/
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 * The Original Code is mozilla.org code.
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
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// 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 nsSJISProber_h__
#define nsSJISProber_h__

#include "nsCharSetProber.h"
#include "nsCodingStateMachine.h"
#include "JpCntx.h"
#include "CharDistribution.h"

00052 class nsSJISProber: public nsCharSetProber {
  nsSJISProber(PRBool aIsPreferredLanguage)
  {mCodingSM = new nsCodingStateMachine(&SJISSMModel);
  virtual ~nsSJISProber(void){delete mCodingSM;}
  nsProbingState HandleData(const char* aBuf, PRUint32 aLen);
  const char* GetCharSetName() {return "Shift_JIS";}
  nsProbingState GetState(void) {return mState;}
  void      Reset(void);
  float     GetConfidence(void);
  void      SetOpion() {}

  nsCodingStateMachine* mCodingSM;
  nsProbingState mState;

  SJISContextAnalysis mContextAnalyser;
  SJISDistributionAnalysis mDistributionAnalyser;

  char mLastChar[2];
  PRBool mIsPreferredLanguage;


#endif /* nsSJISProber_h__ */

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