File indexing completed on 2024-04-28 03:53:03

 /*  -*- C++ -*-
     SPDX-FileCopyrightText: 1998 Netscape Communications Corporation <developer@mozilla.org>
 
     SPDX-License-Identifier: MIT
 */
 
 #ifndef nsCharSetProber_h__
 #define nsCharSetProber_h__
 
 #include "kencodingprober.h"
 
 namespace kencodingprober
 {
 typedef enum {
     eDetecting = 0, // We are still detecting, no sure answer yet, but caller can ask for confidence.
     eFoundIt = 1, // That's a positive answer
     eNotMe = 2, // Negative answer
 } nsProbingState;
 
 #define SHORTCUT_THRESHOLD (float)0.95
 
 class KCODECS_NO_EXPORT nsCharSetProber
 {
 public:
     virtual ~nsCharSetProber()
     {
     }
     virtual const char *GetCharSetName() = 0;
     virtual nsProbingState HandleData(const char *aBuf, unsigned int aLen) = 0;
     virtual nsProbingState GetState(void) = 0;
     virtual void Reset(void) = 0;
     virtual float GetConfidence(void) = 0;
     virtual void SetOpion() = 0;
 
 #ifdef DEBUG_PROBE
     void DumpStatus() override
     {
     }
 #endif
 
     // Helper functions used in the Latin1 and Group probers.
     // both functions Allocate a new buffer for newBuf. This buffer should be
     // freed by the caller using PR_FREEIF.
     // Both functions return false in case of memory allocation failure.
     static bool FilterWithoutEnglishLetters(const char *aBuf, unsigned int aLen, char **newBuf, unsigned int &newLen);
     static bool FilterWithEnglishLetters(const char *aBuf, unsigned int aLen, char **newBuf, unsigned int &newLen);
 };
 }
 #endif /* nsCharSetProber_h__ */