gecko-dev/intl/chardet/nsCyrillicDetector.h

154 строки
4.0 KiB
C++

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsCyrillicDetector_h__
#define nsCyrillicDetector_h__
#include "nsCyrillicClass.h"
// {2002F781-3960-11d3-B3C3-00805F8A6670}
#define NS_RU_PROBDETECTOR_CID \
{ 0x2002f781, 0x3960, 0x11d3, { 0xb3, 0xc3, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }
// {2002F782-3960-11d3-B3C3-00805F8A6670}
#define NS_UK_PROBDETECTOR_CID \
{ 0x2002f782, 0x3960, 0x11d3, { 0xb3, 0xc3, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }
// {2002F783-3960-11d3-B3C3-00805F8A6670}
#define NS_RU_STRING_PROBDETECTOR_CID \
{ 0x2002f783, 0x3960, 0x11d3, { 0xb3, 0xc3, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }
// {2002F784-3960-11d3-B3C3-00805F8A6670}
#define NS_UK_STRING_PROBDETECTOR_CID \
{ 0x2002f784, 0x3960, 0x11d3, { 0xb3, 0xc3, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }
static const uint8_t *gCyrillicCls[5] =
{
CP1251Map,
KOI8Map,
ISO88595Map,
MacCyrillicMap,
IBM866Map
};
static const char * gRussian[5] = {
"windows-1251",
"KOI8-R",
"ISO-8859-5",
"x-mac-cyrillic",
"IBM866"
};
static const char * gUkrainian[5] = {
"windows-1251",
"KOI8-U",
"ISO-8859-5",
"x-mac-cyrillic",
"IBM866"
};
#define NUM_CYR_CHARSET 5
class nsCyrillicDetector
{
public:
nsCyrillicDetector(uint8_t aItems,
const uint8_t ** aCyrillicClass,
const char **aCharsets) {
mItems = aItems;
mCyrillicClass = aCyrillicClass;
mCharsets = aCharsets;
for(unsigned i=0;i<mItems;i++)
mProb[i] = mLastCls[i] =0;
mDone = false;
}
virtual ~nsCyrillicDetector() {}
virtual void HandleData(const char* aBuf, uint32_t aLen);
virtual void DataEnd();
protected:
virtual void Report(const char* aCharset) = 0;
bool mDone;
private:
uint8_t mItems;
const uint8_t ** mCyrillicClass;
const char** mCharsets;
uint32_t mProb[NUM_CYR_CHARSET];
uint8_t mLastCls[NUM_CYR_CHARSET];
};
class nsCyrXPCOMDetector :
public nsCyrillicDetector,
public nsICharsetDetector
{
public:
// nsISupports interface
NS_DECL_ISUPPORTS
nsCyrXPCOMDetector(uint8_t aItems,
const uint8_t ** aCyrillicClass,
const char **aCharsets);
NS_IMETHOD Init(nsICharsetDetectionObserver* aObserver) override;
NS_IMETHOD DoIt(const char* aBuf, uint32_t aLen, bool *oDontFeedMe) override;
NS_IMETHOD Done() override;
protected:
virtual ~nsCyrXPCOMDetector();
virtual void Report(const char* aCharset) override;
private:
nsCOMPtr<nsICharsetDetectionObserver> mObserver;
};
class nsCyrXPCOMStringDetector :
public nsCyrillicDetector,
public nsIStringCharsetDetector
{
public:
// nsISupports interface
NS_DECL_ISUPPORTS
nsCyrXPCOMStringDetector(uint8_t aItems,
const uint8_t ** aCyrillicClass,
const char **aCharsets);
NS_IMETHOD DoIt(const char* aBuf, uint32_t aLen,
const char** oCharset, nsDetectionConfident &oConf) override;
protected:
virtual ~nsCyrXPCOMStringDetector();
virtual void Report(const char* aCharset) override;
private:
nsCOMPtr<nsICharsetDetectionObserver> mObserver;
const char* mResult;
};
class nsRUProbDetector : public nsCyrXPCOMDetector
{
public:
nsRUProbDetector()
: nsCyrXPCOMDetector(5, gCyrillicCls, gRussian) {}
};
class nsRUStringProbDetector : public nsCyrXPCOMStringDetector
{
public:
nsRUStringProbDetector()
: nsCyrXPCOMStringDetector(5, gCyrillicCls, gRussian) {}
};
class nsUKProbDetector : public nsCyrXPCOMDetector
{
public:
nsUKProbDetector()
: nsCyrXPCOMDetector(5, gCyrillicCls, gUkrainian) {}
};
class nsUKStringProbDetector : public nsCyrXPCOMStringDetector
{
public:
nsUKStringProbDetector()
: nsCyrXPCOMStringDetector(5, gCyrillicCls, gUkrainian) {}
};
#endif