/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: et sw=2 ts=2 fdm=marker
 */
/* ***** 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
 * the License. You may obtain a copy of the License at
 * 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):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef nsBig5Prober_h__
#define nsBig5Prober_h__

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

class nsBig5Prober: public nsCharSetProber {
public:
  nsBig5Prober(bool aIsPreferredLanguage)
    :mIsPreferredLanguage(aIsPreferredLanguage) 
  {mCodingSM = new nsCodingStateMachine(&Big5SMModel); 
    Reset();}
  virtual ~nsBig5Prober(void){delete mCodingSM;}
  nsProbingState HandleData(const char* aBuf, uint32_t aLen);
  const char* GetCharSetName() {return "Big5";}
  nsProbingState GetState(void) {return mState;}
  void      Reset(void);
  float     GetConfidence(void);
  void      SetOpion() {}

protected:
  void      GetDistribution(uint32_t aCharLen, const char* aStr);

  nsCodingStateMachine* mCodingSM;
  nsProbingState mState;

  //Big5ContextAnalysis mContextAnalyser;
  Big5DistributionAnalysis mDistributionAnalyser;
  char mLastChar[2];
  bool mIsPreferredLanguage;
};


#endif /* nsBig5Prober_h__ */

