83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1991 - 1995.
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//
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// File: stemsink.hxx
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//
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// Contents: IWordFormSink implementation
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//
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// Classes: CStemmerSink
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//
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// History: 3-May-95 SitaramR Created.
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//
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//----------------------------------------------------------------------------
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#pragma once
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//+---------------------------------------------------------------------------
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//
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// Class: CStemmerSink
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//
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// Purpose: Stemmer stage in filtering pipeline, which consists of:
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// Word Breaker
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// Stemmer
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// Normalizer
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// Noise List
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//
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// History: 3-May-95 SitaramR Created.
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//
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//----------------------------------------------------------------------------
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class CStemmerSink : public PWordRepository, public IWordFormSink
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{
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public:
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CStemmerSink ( IStemmer *pStemmer, PWordRepository& wordRep );
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~CStemmerSink () { }
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//
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// From PWordRepository
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//
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unsigned GetMaxBufferLen () { return _cwcMaxNormBuf; }
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void GetFlags ( BOOL** ppRange, CI_RANK** ppRank );
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void ProcessAltWord ( WCHAR const *pwcInBuf, ULONG cwc );
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void ProcessWord ( WCHAR const *pwcInBuf, ULONG cwc );
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void StartAltPhrase () { _wordRep.StartAltPhrase(); }
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void EndAltPhrase () { _wordRep.EndAltPhrase(); }
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void SkipNoiseWords ( ULONG cWords ) { _wordRep.SkipNoiseWords( cWords ); }
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void SetOccurrence ( OCCURRENCE occ ) { _wordRep.SetOccurrence( occ ); }
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OCCURRENCE GetOccurrence () { return _wordRep.GetOccurrence(); }
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//
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// From IUnknown
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//
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virtual SCODE STDMETHODCALLTYPE QueryInterface ( REFIID riid, void **ppvObject );
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virtual ULONG STDMETHODCALLTYPE AddRef ();
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virtual ULONG STDMETHODCALLTYPE Release ();
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//
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// From IWordFormSink
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//
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virtual SCODE STDMETHODCALLTYPE PutAltWord ( WCHAR const *pwcInBuf, ULONG cwc );
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virtual SCODE STDMETHODCALLTYPE PutWord ( WCHAR const *pwcInBuf, ULONG cwc );
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private:
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SCODE PutStemmedWord ( WCHAR const *pwcInBuf, ULONG cwc, BOOL fAltWord );
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PWordRepository& _wordRep;
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unsigned _cwcMaxNormBuf;
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IStemmer *_pStemmer;
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BOOL _fWBreakAltWord; // is the current word an alternate
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// word according to the wordbreaker ?
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};
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