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101 lines
2.5 KiB
C++
101 lines
2.5 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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#ifndef nsCyrillicDetector_h__
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#define nsCyrillicDetector_h__
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#include "nsCyrillicClass.h"
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#include "nsIStringCharsetDetector.h"
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static const uint8_t *gCyrillicCls[5] =
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{
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CP1251Map,
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KOI8Map,
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ISO88595Map,
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MacCyrillicMap,
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IBM866Map
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};
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static const char * gRussian[5] = {
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"windows-1251",
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"KOI8-R",
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"ISO-8859-5",
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"x-mac-cyrillic",
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"IBM866"
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};
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static const char * gUkrainian[5] = {
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"windows-1251",
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"KOI8-U",
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"ISO-8859-5",
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"x-mac-cyrillic",
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"IBM866"
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};
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#define NUM_CYR_CHARSET 5
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class nsCyrillicDetector
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{
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public:
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nsCyrillicDetector(uint8_t aItems,
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const uint8_t ** aCyrillicClass,
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const char **aCharsets) {
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mItems = aItems;
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mCyrillicClass = aCyrillicClass;
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mCharsets = aCharsets;
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for(unsigned i=0;i<mItems;i++)
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mProb[i] = mLastCls[i] =0;
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mDone = false;
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}
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virtual ~nsCyrillicDetector() {}
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virtual void HandleData(const char* aBuf, uint32_t aLen);
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virtual void DataEnd();
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protected:
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virtual void Report(const char* aCharset) = 0;
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bool mDone;
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private:
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uint8_t mItems;
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const uint8_t ** mCyrillicClass;
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const char** mCharsets;
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uint32_t mProb[NUM_CYR_CHARSET];
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uint8_t mLastCls[NUM_CYR_CHARSET];
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};
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class nsCyrXPCOMDetector :
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public nsCyrillicDetector,
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public nsICharsetDetector
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{
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public:
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// nsISupports interface
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NS_DECL_ISUPPORTS
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nsCyrXPCOMDetector(uint8_t aItems,
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const uint8_t ** aCyrillicClass,
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const char **aCharsets);
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NS_IMETHOD Init(nsICharsetDetectionObserver* aObserver) override;
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NS_IMETHOD DoIt(const char* aBuf, uint32_t aLen, bool *oDontFeedMe) override;
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NS_IMETHOD Done() override;
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protected:
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virtual ~nsCyrXPCOMDetector();
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virtual void Report(const char* aCharset) override;
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private:
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nsCOMPtr<nsICharsetDetectionObserver> mObserver;
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};
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class nsRUProbDetector final : public nsCyrXPCOMDetector
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{
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public:
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nsRUProbDetector()
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: nsCyrXPCOMDetector(5, gCyrillicCls, gRussian) {}
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};
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class nsUKProbDetector final : public nsCyrXPCOMDetector
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{
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public:
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nsUKProbDetector()
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: nsCyrXPCOMDetector(5, gCyrillicCls, gUkrainian) {}
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};
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#endif
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