mirror of
https://github.com/ManchildProductions/UXP-Fixed.git
synced 2026-07-10 11:59:24 +00:00
Matt A. Tobin
56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsUTF8Prober.h"
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void nsUTF8Prober::Reset(void)
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{
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mCodingSM->Reset();
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mNumOfMBChar = 0;
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mState = eDetecting;
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}
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nsProbingState nsUTF8Prober::HandleData(const char* aBuf, uint32_t aLen)
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{
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nsSMState codingState;
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for (uint32_t i = 0; i < aLen; i++)
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{
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codingState = mCodingSM->NextState(aBuf[i]);
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if (codingState == eItsMe)
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{
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mState = eFoundIt;
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break;
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}
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if (codingState == eStart)
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{
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if (mCodingSM->GetCurrentCharLen() >= 2)
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mNumOfMBChar++;
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}
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}
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if (mState == eDetecting)
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if (GetConfidence() > SHORTCUT_THRESHOLD)
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mState = eFoundIt;
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return mState;
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}
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#define ONE_CHAR_PROB (float)0.50
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float nsUTF8Prober::GetConfidence(void)
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{
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float unlike = (float)0.99;
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if (mNumOfMBChar < 6)
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{
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for (uint32_t i = 0; i < mNumOfMBChar; i++)
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unlike *= ONE_CHAR_PROB;
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return (float)1.0 - unlike;
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}
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else
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return (float)0.99;
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}
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