91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
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// ENGSTEM.H: Definition of CITEngStemmer object implementation.
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#ifndef __ENGSTEM_H__
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#define __ENGSTEM_H__
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#include "verinfo.h"
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#define VERSION_ENGSTEMMER (MAKELONG(MAKEWORD(0, rapFile), MAKEWORD(rmmFile, rmjFile)))
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// Group of flags that indicate what data has been persisted to the
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// stemmer's stream.
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#define ITSTDBRK_PERSISTED_STEMCTL 0x00000001
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// Stemmer control structure that contains information that can
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// vary how words are stemmed.
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typedef struct _stemctl
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{
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DWORD dwCodePageID;
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LCID lcid;
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DWORD grfStemFlags;
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} STEMCTL;
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class CITEngStemmer :
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public IStemmer,
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public IStemmerConfig,
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public IPersistStreamInit,
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public CComObjectRootEx<CComMultiThreadModel>,
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public CComCoClass<CITEngStemmer,&CLSID_ITEngStemmer>
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{
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public:
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CITEngStemmer();
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virtual ~CITEngStemmer();
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BEGIN_COM_MAP(CITEngStemmer)
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COM_INTERFACE_ENTRY(IStemmer)
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COM_INTERFACE_ENTRY(IStemmerConfig)
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COM_INTERFACE_ENTRY(IPersistStreamInit)
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END_COM_MAP()
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DECLARE_REGISTRY(CLSID_ITEngStemmer, "ITIR.EngStemmer.4", "ITIR.EngStemmer", 0, THREADFLAGS_BOTH )
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// IStemmer methods
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STDMETHOD(Init)(ULONG ulMaxTokenSize, BOOL *pfLicense);
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STDMETHOD(GetLicenseToUse)(WCHAR const **ppwcsLicense);
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STDMETHOD(StemWord)(WCHAR const *pwcInBuf, ULONG cwc, IStemSink *pStemSink);
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// IStemmerConfig methods
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STDMETHOD(SetLocaleInfo)(DWORD dwCodePageID, LCID lcid);
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STDMETHOD(GetLocaleInfo)(DWORD *pdwCodePageID, LCID *plcid);
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STDMETHOD(SetControlInfo)(DWORD grfBreakFlags, DWORD dwReserved);
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STDMETHOD(GetControlInfo)(DWORD *pgrfBreakFlags, DWORD *pdwReserved);
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STDMETHOD(LoadExternalStemmerData)(IStream *pStream, DWORD dwExtDataType);
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// IPersistStreamInit methods
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STDMETHOD(GetClassID)(CLSID *pclsid);
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STDMETHOD(IsDirty)(void);
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STDMETHOD(Load)(IStream *pStream);
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STDMETHOD(Save)(IStream *pStream, BOOL fClearDirty);
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STDMETHOD(GetSizeMax)(ULARGE_INTEGER *pcbSizeMax);
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STDMETHOD(InitNew)(void);
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private:
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// Private methods
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void ClearMembers(void);
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void InitStemCtl(void);
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void Close(void);
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HRESULT ReallocBuffer(HGLOBAL *phmemBuf, DWORD *cbBufCur, DWORD cbBufNew);
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// Private data members
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BOOL m_fInitialized;
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BOOL m_fDirty;
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DWORD m_grfPersistedItems;
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STEMCTL m_stemctl;
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HGLOBAL m_hmem1;
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HGLOBAL m_hmem2;
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DWORD m_cbBuf1Cur;
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DWORD m_cbBuf2Cur;
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_ThreadModel::AutoCriticalSection m_cs; // Critical section obj.
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};
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// Initial size of Ansi string buffers.
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#define cbAnsiBufInit 256
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#endif // __ENGSTEM_H__
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