michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsUniversalDetector_h__
michael@0: #define nsUniversalDetector_h__
michael@0: 
michael@0: class nsCharSetProber;
michael@0: 
michael@0: #define NUM_OF_CHARSET_PROBERS  3
michael@0: 
michael@0: typedef enum {
michael@0:   ePureAscii = 0,
michael@0:   eEscAscii  = 1,
michael@0:   eHighbyte  = 2
michael@0: } nsInputState;
michael@0: 
michael@0: #define NS_FILTER_CHINESE_SIMPLIFIED  0x01
michael@0: #define NS_FILTER_CHINESE_TRADITIONAL 0x02
michael@0: #define NS_FILTER_JAPANESE            0x04
michael@0: #define NS_FILTER_KOREAN              0x08
michael@0: #define NS_FILTER_NON_CJK             0x10
michael@0: #define NS_FILTER_ALL                 0x1F
michael@0: #define NS_FILTER_CHINESE (NS_FILTER_CHINESE_SIMPLIFIED | \
michael@0:                            NS_FILTER_CHINESE_TRADITIONAL)
michael@0: #define NS_FILTER_CJK (NS_FILTER_CHINESE_SIMPLIFIED | \
michael@0:                        NS_FILTER_CHINESE_TRADITIONAL | \
michael@0:                        NS_FILTER_JAPANESE | \
michael@0:                        NS_FILTER_KOREAN)
michael@0: 
michael@0: class nsUniversalDetector {
michael@0: public:
michael@0:    nsUniversalDetector(uint32_t aLanguageFilter);
michael@0:    virtual ~nsUniversalDetector();
michael@0:    virtual nsresult HandleData(const char* aBuf, uint32_t aLen);
michael@0:    virtual void DataEnd(void);
michael@0: 
michael@0: protected:
michael@0:    virtual void Report(const char* aCharset) = 0;
michael@0:    virtual void Reset();
michael@0:    nsInputState  mInputState;
michael@0:    bool    mDone;
michael@0:    bool    mInTag;
michael@0:    bool    mStart;
michael@0:    bool    mGotData;
michael@0:    char    mLastChar;
michael@0:    const char *  mDetectedCharset;
michael@0:    int32_t mBestGuess;
michael@0:    uint32_t mLanguageFilter;
michael@0: 
michael@0:    nsCharSetProber  *mCharSetProbers[NUM_OF_CHARSET_PROBERS];
michael@0:    nsCharSetProber  *mEscCharSetProber;
michael@0: };
michael@0: 
michael@0: #endif
michael@0: