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nsHebrewProber.h
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00001 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is Mozilla Universal charset detector code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  *          Shy Shalom <shooshX@gmail.com>
00019  * Portions created by the Initial Developer are Copyright (C) 2005
00020  * the Initial Developer: All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nsHebrewProber_h__
00039 #define nsHebrewProber_h__
00040 
00041 #include "nsSBCharSetProber.h"
00042 
00043 // This prober doesn't actually recognize a language or a charset.
00044 // It is a helper prober for the use of the Hebrew model probers
00045 class nsHebrewProber: public nsCharSetProber
00046 {
00047 public:
00048   nsHebrewProber(void) :mLogicalProb(0), mVisualProb(0) { Reset(); }
00049 
00050   virtual ~nsHebrewProber(void) {}
00051   virtual nsProbingState HandleData(const char* aBuf, PRUint32 aLen);
00052   virtual const char* GetCharSetName();
00053   virtual void Reset(void);
00054 
00055   virtual nsProbingState GetState(void);
00056 
00057   virtual float     GetConfidence(void) { return (float)0.0; }
00058   virtual void      SetOpion() {};
00059 
00060   void SetModelProbers(nsCharSetProber *logicalPrb, nsCharSetProber *visualPrb) 
00061   { mLogicalProb = logicalPrb; mVisualProb = visualPrb; }
00062 
00063 #ifdef DEBUG_chardet
00064   virtual void  DumpStatus();
00065 #endif
00066 
00067 protected:
00068   static PRBool isFinal(char c);
00069   static PRBool isNonFinal(char c);
00070 
00071   PRInt32 mFinalCharLogicalScore, mFinalCharVisualScore;
00072 
00073   // The two last characters seen in the previous buffer.
00074   char mPrev, mBeforePrev;
00075 
00076   // These probers are owned by the group prober.
00077   nsCharSetProber *mLogicalProb, *mVisualProb;
00078 };
00079 
00176 #endif /* nsHebrewProber_h__ */