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37 :
38 : #include "nsEUCTWProber.h"
39 : #include "nsDebug.h"
40 :
41 0 : void nsEUCTWProber::Reset(void)
42 : {
43 0 : mCodingSM->Reset();
44 0 : mState = eDetecting;
45 0 : mDistributionAnalyser.Reset(mIsPreferredLanguage);
46 : //mContextAnalyser.Reset();
47 0 : }
48 :
49 0 : nsProbingState nsEUCTWProber::HandleData(const char* aBuf, PRUint32 aLen)
50 : {
51 0 : NS_ASSERTION(aLen, "HandleData called with empty buffer");
52 : nsSMState codingState;
53 :
54 0 : for (PRUint32 i = 0; i < aLen; i++)
55 : {
56 0 : codingState = mCodingSM->NextState(aBuf[i]);
57 0 : if (codingState == eItsMe)
58 : {
59 0 : mState = eFoundIt;
60 0 : break;
61 : }
62 0 : if (codingState == eStart)
63 : {
64 0 : PRUint32 charLen = mCodingSM->GetCurrentCharLen();
65 :
66 0 : if (i == 0)
67 : {
68 0 : mLastChar[1] = aBuf[0];
69 0 : mDistributionAnalyser.HandleOneChar(mLastChar, charLen);
70 : }
71 : else
72 0 : mDistributionAnalyser.HandleOneChar(aBuf+i-1, charLen);
73 : }
74 : }
75 :
76 0 : mLastChar[0] = aBuf[aLen-1];
77 :
78 0 : if (mState == eDetecting)
79 0 : if (mDistributionAnalyser.GotEnoughData() && GetConfidence() > SHORTCUT_THRESHOLD)
80 0 : mState = eFoundIt;
81 : // else
82 : // mDistributionAnalyser.HandleData(aBuf, aLen);
83 :
84 0 : return mState;
85 : }
86 :
87 0 : float nsEUCTWProber::GetConfidence(void)
88 : {
89 0 : float distribCf = mDistributionAnalyser.GetConfidence();
90 :
91 0 : return (float)distribCf;
92 : }
93 :
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