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