1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/extensions/universalchardet/src/base/nsEscCharsetProber.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,69 @@
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 +
1.10 +#include "nsEscCharsetProber.h"
1.11 +#include "nsUniversalDetector.h"
1.12 +
1.13 +nsEscCharSetProber::nsEscCharSetProber(uint32_t aLanguageFilter)
1.14 +{
1.15 + for (uint32_t i = 0; i < NUM_OF_ESC_CHARSETS; i++)
1.16 + mCodingSM[i] = nullptr;
1.17 + if (aLanguageFilter & NS_FILTER_CHINESE_SIMPLIFIED)
1.18 + {
1.19 + mCodingSM[0] = new nsCodingStateMachine(&HZSMModel);
1.20 + mCodingSM[1] = new nsCodingStateMachine(&ISO2022CNSMModel);
1.21 + }
1.22 + if (aLanguageFilter & NS_FILTER_JAPANESE)
1.23 + mCodingSM[2] = new nsCodingStateMachine(&ISO2022JPSMModel);
1.24 + if (aLanguageFilter & NS_FILTER_KOREAN)
1.25 + mCodingSM[3] = new nsCodingStateMachine(&ISO2022KRSMModel);
1.26 + mActiveSM = NUM_OF_ESC_CHARSETS;
1.27 + mState = eDetecting;
1.28 + mDetectedCharset = nullptr;
1.29 +}
1.30 +
1.31 +nsEscCharSetProber::~nsEscCharSetProber(void)
1.32 +{
1.33 + for (uint32_t i = 0; i < NUM_OF_ESC_CHARSETS; i++)
1.34 + delete mCodingSM[i];
1.35 +}
1.36 +
1.37 +void nsEscCharSetProber::Reset(void)
1.38 +{
1.39 + mState = eDetecting;
1.40 + for (uint32_t i = 0; i < NUM_OF_ESC_CHARSETS; i++)
1.41 + if (mCodingSM[i])
1.42 + mCodingSM[i]->Reset();
1.43 + mActiveSM = NUM_OF_ESC_CHARSETS;
1.44 + mDetectedCharset = nullptr;
1.45 +}
1.46 +
1.47 +nsProbingState nsEscCharSetProber::HandleData(const char* aBuf, uint32_t aLen)
1.48 +{
1.49 + nsSMState codingState;
1.50 + int32_t j;
1.51 + uint32_t i;
1.52 +
1.53 + for ( i = 0; i < aLen && mState == eDetecting; i++)
1.54 + {
1.55 + for (j = mActiveSM-1; j>= 0; j--)
1.56 + {
1.57 + if (mCodingSM[j])
1.58 + {
1.59 + codingState = mCodingSM[j]->NextState(aBuf[i]);
1.60 + if (codingState == eItsMe)
1.61 + {
1.62 + mState = eFoundIt;
1.63 + mDetectedCharset = mCodingSM[j]->GetCodingStateMachine();
1.64 + return mState;
1.65 + }
1.66 + }
1.67 + }
1.68 + }
1.69 +
1.70 + return mState;
1.71 +}
1.72 +
