nsGB18030Prober Class Reference

#include <nsGB2312Prober.h>

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Public Member Functions

 nsGB18030Prober (void)
virtual ~nsGB18030Prober (void)
nsProbingState HandleData (const char *aBuf, PRUint32 aLen)
const char * GetCharSetName ()
nsProbingState GetState (void)
void Reset (void)
float GetConfidence (void)
void SetOpion ()

Protected Member Functions

void GetDistribution (PRUint32 aCharLen, const char *aStr)

Protected Attributes

nsCodingStateMachine * mCodingSM
nsProbingState mState
GB2312DistributionAnalysis mDistributionAnalyser
char mLastChar [2]

Detailed Description

Definition at line 47 of file nsGB2312Prober.h.

Constructor & Destructor Documentation

nsGB18030Prober::nsGB18030Prober ( void   )  [inline]

Definition at line 49 of file nsGB2312Prober.h.

References GB18030SMModel, mCodingSM, and Reset().

00049                        {mCodingSM = new nsCodingStateMachine(&GB18030SMModel);
00050                       Reset();};

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virtual nsGB18030Prober::~nsGB18030Prober ( void   )  [inline, virtual]

Definition at line 51 of file nsGB2312Prober.h.

References mCodingSM.

00051 {delete mCodingSM;};

Member Function Documentation

const char* nsGB18030Prober::GetCharSetName (  )  [inline, virtual]

Implements nsCharSetProber.

Definition at line 53 of file nsGB2312Prober.h.

00053 {return "gb18030";};

float nsGB18030Prober::GetConfidence ( void   )  [virtual]

Implements nsCharSetProber.

Definition at line 95 of file nsGB2312Prober.cpp.

References CharDistributionAnalysis::GetConfidence(), and mDistributionAnalyser.

Referenced by HandleData().

00096 {
00097   float distribCf = mDistributionAnalyser.GetConfidence();
00098 
00099   return (float)distribCf;
00100 }

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void nsGB18030Prober::GetDistribution ( PRUint32  aCharLen,
const char *  aStr 
) [protected]
nsProbingState nsGB18030Prober::GetState ( void   )  [inline, virtual]

Implements nsCharSetProber.

Definition at line 54 of file nsGB2312Prober.h.

References mState.

00054 {return mState;};

nsProbingState nsGB18030Prober::HandleData ( const char *  aBuf,
PRUint32  aLen 
) [virtual]

Implements nsCharSetProber.

Definition at line 53 of file nsGB2312Prober.cpp.

References eDetecting, eError, eFoundIt, eItsMe, eNotMe, eStart, GetConfidence(), nsCodingStateMachine::GetCurrentCharLen(), CharDistributionAnalysis::GotEnoughData(), CharDistributionAnalysis::HandleOneChar(), mCodingSM, mDistributionAnalyser, mLastChar, mState, nsCodingStateMachine::NextState(), and SHORTCUT_THRESHOLD.

00054 {
00055   nsSMState codingState;
00056 
00057   for (PRUint32 i = 0; i < aLen; i++)
00058   {
00059     codingState = mCodingSM->NextState(aBuf[i]);
00060     if (codingState == eError)
00061     {
00062       mState = eNotMe;
00063       break;
00064     }
00065     if (codingState == eItsMe)
00066     {
00067       mState = eFoundIt;
00068       break;
00069     }
00070     if (codingState == eStart)
00071     {
00072       PRUint32 charLen = mCodingSM->GetCurrentCharLen();
00073 
00074       if (i == 0)
00075       {
00076         mLastChar[1] = aBuf[0];
00077         mDistributionAnalyser.HandleOneChar(mLastChar, charLen);
00078       }
00079       else
00080         mDistributionAnalyser.HandleOneChar(aBuf+i-1, charLen);
00081     }
00082   }
00083 
00084   mLastChar[0] = aBuf[aLen-1];
00085 
00086   if (mState == eDetecting)
00087     if (mDistributionAnalyser.GotEnoughData() && GetConfidence() > SHORTCUT_THRESHOLD)
00088       mState = eFoundIt;
00089 //    else
00090 //      mDistributionAnalyser.HandleData(aBuf, aLen);
00091 
00092   return mState;
00093 }

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void nsGB18030Prober::Reset ( void   )  [virtual]

Implements nsCharSetProber.

Definition at line 45 of file nsGB2312Prober.cpp.

References eDetecting, mCodingSM, mDistributionAnalyser, mState, CharDistributionAnalysis::Reset(), and nsCodingStateMachine::Reset().

Referenced by nsGB18030Prober().

00046 {
00047   mCodingSM->Reset(); 
00048   mState = eDetecting;
00049   mDistributionAnalyser.Reset();
00050   //mContextAnalyser.Reset();
00051 }

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void nsGB18030Prober::SetOpion (  )  [inline, virtual]

Implements nsCharSetProber.

Definition at line 57 of file nsGB2312Prober.h.

00057 {};

Field Documentation

nsCodingStateMachine* nsGB18030Prober::mCodingSM [protected]

Definition at line 62 of file nsGB2312Prober.h.

Referenced by HandleData(), nsGB18030Prober(), Reset(), and ~nsGB18030Prober().

GB2312DistributionAnalysis nsGB18030Prober::mDistributionAnalyser [protected]

Definition at line 66 of file nsGB2312Prober.h.

Referenced by GetConfidence(), HandleData(), and Reset().

char nsGB18030Prober::mLastChar[2] [protected]

Definition at line 67 of file nsGB2312Prober.h.

Referenced by HandleData().

nsProbingState nsGB18030Prober::mState [protected]

Definition at line 63 of file nsGB2312Prober.h.

Referenced by GetState(), HandleData(), and Reset().

The documentation for this class was generated from the following files:
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