1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/extensions/universalchardet/src/base/nsBig5Prober.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,58 @@
1.4 +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsBig5Prober.h"
1.10 +#include "nsDebug.h"
1.11 +
1.12 +void nsBig5Prober::Reset(void)
1.13 +{
1.14 + mCodingSM->Reset();
1.15 + mState = eDetecting;
1.16 + mDistributionAnalyser.Reset(mIsPreferredLanguage);
1.17 +}
1.18 +
1.19 +nsProbingState nsBig5Prober::HandleData(const char* aBuf, uint32_t aLen)
1.20 +{
1.21 + NS_ASSERTION(aLen, "HandleData called with empty buffer");
1.22 + nsSMState codingState;
1.23 +
1.24 + for (uint32_t i = 0; i < aLen; i++)
1.25 + {
1.26 + codingState = mCodingSM->NextState(aBuf[i]);
1.27 + if (codingState == eItsMe)
1.28 + {
1.29 + mState = eFoundIt;
1.30 + break;
1.31 + }
1.32 + if (codingState == eStart)
1.33 + {
1.34 + uint32_t charLen = mCodingSM->GetCurrentCharLen();
1.35 +
1.36 + if (i == 0)
1.37 + {
1.38 + mLastChar[1] = aBuf[0];
1.39 + mDistributionAnalyser.HandleOneChar(mLastChar, charLen);
1.40 + }
1.41 + else
1.42 + mDistributionAnalyser.HandleOneChar(aBuf+i-1, charLen);
1.43 + }
1.44 + }
1.45 +
1.46 + mLastChar[0] = aBuf[aLen-1];
1.47 +
1.48 + if (mState == eDetecting)
1.49 + if (mDistributionAnalyser.GotEnoughData() && GetConfidence() > SHORTCUT_THRESHOLD)
1.50 + mState = eFoundIt;
1.51 +
1.52 + return mState;
1.53 +}
1.54 +
1.55 +float nsBig5Prober::GetConfidence(void)
1.56 +{
1.57 + float distribCf = mDistributionAnalyser.GetConfidence();
1.58 +
1.59 + return (float)distribCf;
1.60 +}
1.61 +
