236 lines
6.3 KiB
C
236 lines
6.3 KiB
C
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// Copyright (C) 1996-1997 Microsoft Corporation. All rights reserved.
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//
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// FTS.H
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//
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#if _MSC_VER > 1000
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#pragma once
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#endif
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#ifndef __FTS_H__
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#define __FTS_H__
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#ifndef __SITEMAP_H__
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#include "sitemap.h"
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#endif
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// Shroom header files
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//
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#include "itquery.h"
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#include "itgroup.h"
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#include "itcc.h"
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#include "itrs.h"
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#include "itdb.h"
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#include "itww.h"
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class CExCollection;
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class CExTitle;
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class CCombinedFTS;
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class CSubSet;
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class CUWait;
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#define FTS_TITLE_ONLY 0x0001
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#define FTS_ENABLE_STEMMING 0x0002
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#define FTS_SEARCH_PREVIOUS 0x0004
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#define FTS_NO_INDEX MAKE_HRESULT(SEVERITY_ERROR,FACILITY_ITF,100)
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#define FTS_NOT_INITIALIZED MAKE_HRESULT(SEVERITY_ERROR,FACILITY_ITF,101)
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#define FTS_E_SKIP_TITLE MAKE_HRESULT(SEVERITY_ERROR,FACILITY_ITF,102)
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#define FTS_E_SKIP_VOLUME MAKE_HRESULT(SEVERITY_ERROR,FACILITY_ITF,103)
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#define FTS_E_SKIP_ALL MAKE_HRESULT(SEVERITY_ERROR,FACILITY_ITF,104)
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#define FTS_INVALID_SYNTAX MAKE_HRESULT(SEVERITY_ERROR,FACILITY_ITF,105)
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#define FTS_CANCELED MAKE_HRESULT(SEVERITY_ERROR,FACILITY_ITF,106)
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#define MAX_HIGHLIGHT_TERMS 128
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typedef struct CHM_MapEntry
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{
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char szChmName[50];
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WORD iIndex;
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FILETIME versioninfo;
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LCID language;
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DWORD dwTopicCount;
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} CHM_MAP_ENTRY;
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DWORD Han2Zen(unsigned char *lpInBuffer, unsigned char *lpOutBuffer, UINT codepage);
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WCHAR* PreProcessQuery(WCHAR *pwcQuery, UINT codepage);
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BOOL compareOperator(char *pszQuery, char *pszTerm);
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int IsJOperator(char *pszQuery);
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int FASTCALL CompareIntValues(const void *pval1, const void *pval2);
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ERR SearchMessageFunc(DWORD dwFlag, LPVOID pUserData, LPVOID pMessage);
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BOOL IsQuery(char *pszQuery);
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// FTS Results structure
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//
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typedef struct _search_result
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{
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DWORD dwTopicNumber;
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DWORD dwRank;
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CExTitle *pTitle;
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} SEARCH_RESULT;
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class CTitleFTS;
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//
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// Topic numbers in IVQ files will be reduced from 32bit numbers to 22bit numbers.
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// The high 10 bits will be used as an CHM ID.
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//
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// Conversion from DWORD to CHM_ID and Topic Number.
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//
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#define CHM_ID(exp) (0x000003ff & (exp >> 22))
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#define TOPIC_NUM(exp) (0x003fffff & exp)
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// Conversion from CHM_ID and Topic Number to DWORD.
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//
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#define PACKED_TOPICNUM(iTopNum, iChmID) ((iChmID << 22) | iTopNum)
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// Title array structure
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//
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typedef struct _titleArray
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{
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CExTitle *pExTitle;
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CCombinedFTS *pCombinedFTI;
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BOOL bSearch;
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BOOL bCombinedIndex;
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WORD iTitleIndex;
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FILETIME versioninfo;
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char *pszQueryName;
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char *pszIndexName;
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char *pszShortName;
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LCID language;
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DWORD dwTopicCount;
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UINT uiVolumeOrder;
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BOOL bHasResults;
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BOOL bAlreadyQueried;
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} TITLE_ENTRY;
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// CFullTextSearch class
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//
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class CFullTextSearch
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{
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public:
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CFullTextSearch(CExCollection *pTitleCollection);
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~CFullTextSearch();
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HRESULT SimpleQuery(WCHAR *pszQuery, int *cResultCount, SEARCH_RESULT **);
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HRESULT ComplexQuery(WCHAR *pszQuery, DWORD dwFlags, int *cResultCount, SEARCH_RESULT **, CSubSet *pSubSet);
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HRESULT AbortQuery();
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HRESULT SetProximity(WORD wNear);
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HRESULT SetResultCount(LONG cRows);
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HRESULT SetOptions(DWORD dwFlag);
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void InitTitleArray(void);
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BOOL LoadCombinedIndex(DWORD);
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CCombinedFTS * GetPreviousInstance(char *pszQueryName);
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CExTitle *LookupTitle(CCombinedFTS *, DWORD);
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HRESULT AddHLTerm(WCHAR *, int len);
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HRESULT CFullTextSearch::AddQueryToTermList(WCHAR *pwsBuffer);
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HRESULT TermListRemoveAll(void);
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WCHAR * GetHLTermAt(int index);
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INT GetHLTermCount(void);
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VOID FreeResults(SEARCH_RESULT *);
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long ComputeResultCount(IITResultSet *pResultSet);
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PCSTR m_pszITSSFile;
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BOOL Initialize();
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long m_lMaxRowCount;
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WORD m_wQueryProximity;
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DWORD m_dwQueryFlags;
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int m_iLastResultCount;
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TITLE_ENTRY *m_pTitleArray;
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BOOL m_bMergedChmSetWithCHQ; // When true, we are running a merged chm set that has
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// a combined index (NT5 Help).
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protected:
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LANGID m_SystemLangID;
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WCHAR *m_HLTermArray[MAX_HIGHLIGHT_TERMS];
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int m_iHLIndex;
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BOOL m_bInit;
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BOOL m_InitFailed;
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BOOL m_SearchActive;
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CExCollection *m_pTitleCollection;
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BOOL m_bTitleArrayInit;
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INT m_TitleArraySize;
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};
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// CTitleFTS class
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//
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class CTitleFTS
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{
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public:
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CTitleFTS(PCSTR pwszTitlePath, LCID lcid, CExTitle *);
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void ReleaseObjects();
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~CTitleFTS();
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HRESULT Query(WCHAR *pszQuery, DWORD dwFlags, IITResultSet **, CFullTextSearch *pFullTextSearch, CUWait *, int);
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HRESULT AbortQuery();
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IITResultSet * GetResultsSet(void) { return m_pITResultSet; }
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HRESULT SetProximity(WORD wNear);
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HRESULT SetResultCount(LONG cRows);
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HRESULT SetOptions(DWORD dwFlag);
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VOID FreeResults(SEARCH_RESULT *);
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HRESULT Initialize();
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HRESULT UpdateOptions(WORD wNear, LONG cRows);
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protected:
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UINT m_codepage;
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long m_iLastResultCount;
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WCHAR *m_pPrevQuery;
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BOOL m_bInit;
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CExTitle *m_pTitle;
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HRESULT m_InitError;
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BOOL m_InitFailed;
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BOOL m_SearchActive;
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DWORD m_dwQueryFlags;
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LCID m_lcid;
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IITIndex *m_pIndex;
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IITQuery *m_pQuery;
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IITResultSet *m_pITResultSet;
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IITDatabase *m_pITDB;
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LANGID m_SystemLangID;
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LANGID m_langid;
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BOOL m_fDBCS;
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WCHAR m_tcTitlePath[MAX_PATH];
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long m_lMaxRowCount;
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WORD m_wQueryProximity;
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inline BOOL Init() { if( !m_bInit ) Initialize(); return m_bInit; }
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};
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// CCombinedFTS class
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//
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class CCombinedFTS
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{
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public:
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CCombinedFTS(CExTitle *, LCID lcid, CFullTextSearch *);
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~CCombinedFTS();
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HRESULT Query(WCHAR *pszQuery, DWORD dwFlags, IITResultSet **, CFullTextSearch *pFullTextSearch, CUWait *, int);
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HRESULT AbortQuery();
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IITResultSet * GetResultsSet(void) { return m_pITResultSet; }
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VOID FreeResults(SEARCH_RESULT *);
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HRESULT Initialize();
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HRESULT UpdateOptions(WORD wNear, LONG cRows);
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void ReleaseObjects();
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protected:
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UINT m_codepage;
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long m_iLastResultCount;
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HRESULT SetProximity(WORD wNear);
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HRESULT SetResultCount(LONG cRows);
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HRESULT SetOptions(DWORD dwFlag);
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CExTitle *m_pTitle;
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CFullTextSearch *m_pFullTextSearch;
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BOOL m_SearchActive;
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DWORD m_dwQueryFlags;
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LCID m_lcid;
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WCHAR *m_pPrevQuery;
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IITIndex *m_pIndex;
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IITQuery *m_pQuery;
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IITResultSet *m_pITResultSet;
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IITDatabase *m_pITDB;
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LANGID m_SystemLangID;
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LANGID m_langid;
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BOOL m_fDBCS;
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WCHAR m_tcTitlePath[MAX_PATH];
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long m_lMaxRowCount;
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WORD m_wQueryProximity;
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};
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#endif // __FTS_H__
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