The Tor Browser: extensions/universalchardet/src/base/nsBig5Prober.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "nsBig5Prober.h"

     7 #include "nsDebug.h"

     9 void  nsBig5Prober::Reset(void)

    10 {

    11   mCodingSM->Reset();

    12   mState = eDetecting;

    13   mDistributionAnalyser.Reset(mIsPreferredLanguage);

    14 }

    16 nsProbingState nsBig5Prober::HandleData(const char* aBuf, uint32_t aLen)

    17 {

    18   NS_ASSERTION(aLen, "HandleData called with empty buffer");

    19   nsSMState codingState;

    21   for (uint32_t i = 0; i < aLen; i++)

    22   {

    23     codingState = mCodingSM->NextState(aBuf[i]);

    24     if (codingState == eItsMe)

    25     {

    26       mState = eFoundIt;

    27       break;

    28     }

    29     if (codingState == eStart)

    30     {

    31       uint32_t charLen = mCodingSM->GetCurrentCharLen();

    33       if (i == 0)

    34       {

    35         mLastChar[1] = aBuf[0];

    36         mDistributionAnalyser.HandleOneChar(mLastChar, charLen);

    37       }

    38       else

    39         mDistributionAnalyser.HandleOneChar(aBuf+i-1, charLen);

    40     }

    41   }

    43   mLastChar[0] = aBuf[aLen-1];

    45   if (mState == eDetecting)

    46     if (mDistributionAnalyser.GotEnoughData() && GetConfidence() > SHORTCUT_THRESHOLD)

    47       mState = eFoundIt;

    49   return mState;

    50 }

    52 float nsBig5Prober::GetConfidence(void)

    53 {

    54   float distribCf = mDistributionAnalyser.GetConfidence();

    56   return (float)distribCf;

    57 }

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