You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
456 lines
14 KiB
456 lines
14 KiB
//+-------------------------------------------------------------------------
|
|
//
|
|
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
|
|
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
|
|
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
|
|
// PARTICULAR PURPOSE.
|
|
//
|
|
// Copyright 1998-2000 Microsoft Corporation. All Rights Reserved.
|
|
//
|
|
// PROGRAM: isrchdmp.cx
|
|
//
|
|
// PURPOSE: Illustrates a minimal query using Indexing Service.
|
|
//
|
|
// PLATFORM: Windows 2000
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
#ifndef UNICODE
|
|
#define UNICODE
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <windows.h>
|
|
|
|
#define DBINITCONSTANTS
|
|
|
|
#include <oledberr.h>
|
|
#include <oledb.h>
|
|
#include <cmdtree.h>
|
|
|
|
#include <ntquery.h>
|
|
#include <filter.h>
|
|
#include <filterr.h>
|
|
|
|
#include "isearch.h"
|
|
#include "array.hxx"
|
|
|
|
extern CIPROPERTYDEF aCPPProperties[];
|
|
|
|
extern unsigned cCPPProperties;
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Template: XInterface
|
|
//
|
|
// Synopsis: Template for managing ownership of interfaces
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
template<class T> class XInterface
|
|
{
|
|
public:
|
|
XInterface( T * p = 0 ) : _p( p ) {}
|
|
~XInterface() { if ( 0 != _p ) _p->Release(); }
|
|
T * operator->() { return _p; }
|
|
T * GetPointer() const { return _p; }
|
|
IUnknown ** GetIUPointer() { return (IUnknown **) &_p; }
|
|
T ** GetPPointer() { return &_p; }
|
|
void ** GetQIPointer() { return (void **) &_p; }
|
|
T * Acquire() { T * p = _p; _p = 0; return p; }
|
|
|
|
private:
|
|
T * _p;
|
|
};
|
|
|
|
const GUID guidStorage = PSGUID_STORAGE;
|
|
|
|
typedef void (__stdcall * PFnCIShutdown)(void);
|
|
typedef HRESULT (__stdcall * PFnMakeISearch)( ISearchQueryHits ** ppSearch,
|
|
DBCOMMANDTREE * pRst,
|
|
WCHAR const * pwcPath );
|
|
typedef HRESULT (__stdcall * PFnLoadTextFilter)( WCHAR const * pwcPath,
|
|
IFilter ** ppIFilter );
|
|
|
|
PFnCIShutdown g_pCIShutdown = 0;
|
|
PFnMakeISearch g_pMakeISearch = 0;
|
|
PFnLoadTextFilter g_pLoadTextFilter = 0;
|
|
|
|
#define UNICODE_PARAGRAPH_SEPARATOR 0x2029
|
|
|
|
ULONG CountCR( WCHAR * pCur, ULONG cwc, WCHAR * &pwcPrev )
|
|
{
|
|
pwcPrev = pCur;
|
|
WCHAR * pEnd = pCur + cwc;
|
|
ULONG cCR = 0;
|
|
|
|
while ( pCur < pEnd )
|
|
{
|
|
WCHAR c = *pCur;
|
|
|
|
if ( L'\r' == c ||
|
|
L'\n' == c ||
|
|
UNICODE_PARAGRAPH_SEPARATOR == c )
|
|
{
|
|
cCR++;
|
|
|
|
if ( ( L'\r' == c ) &&
|
|
( (pCur+1) < pEnd ) &&
|
|
( L'\n' == *(pCur+1) ) )
|
|
pCur++;
|
|
|
|
pwcPrev = pCur + 1;
|
|
}
|
|
|
|
pCur++;
|
|
}
|
|
|
|
return cCR;
|
|
} //CountCR
|
|
|
|
HRESULT WalkFile(
|
|
TArray<FILTERREGION> & aHits,
|
|
XInterface<IFilter> & xIFilter,
|
|
WCHAR const * pwcFile,
|
|
BOOL fPrintFile )
|
|
{
|
|
ULONG ulFlags;
|
|
|
|
HRESULT hr = xIFilter->Init( IFILTER_INIT_CANON_PARAGRAPHS |
|
|
IFILTER_INIT_CANON_HYPHENS |
|
|
IFILTER_INIT_APPLY_INDEX_ATTRIBUTES,
|
|
0,
|
|
0,
|
|
&ulFlags );
|
|
if ( FAILED( hr ) )
|
|
return hr;
|
|
|
|
ULONG lenSoFar = 0;
|
|
int cChunk = 0;
|
|
BOOL fSeenProp = FALSE;
|
|
ULONG iHit = 0;
|
|
ULONG cLines = 1;
|
|
|
|
const ULONG cwcBufSize = 65536;
|
|
WCHAR *pwc = new WCHAR[cwcBufSize + 1];
|
|
|
|
if ( 0 == pwc )
|
|
return E_OUTOFMEMORY;
|
|
|
|
STAT_CHUNK statChunk;
|
|
hr = xIFilter->GetChunk( &statChunk );
|
|
|
|
while( SUCCEEDED( hr ) ||
|
|
( FILTER_E_LINK_UNAVAILABLE == hr ) ||
|
|
( FILTER_E_EMBEDDING_UNAVAILABLE == hr ) )
|
|
{
|
|
if ( SUCCEEDED( hr ) && (statChunk.flags & CHUNK_TEXT) )
|
|
{
|
|
// read the contents only
|
|
|
|
if ( ( guidStorage == statChunk.attribute.guidPropSet ) &&
|
|
( PRSPEC_PROPID == statChunk.attribute.psProperty.ulKind ) &&
|
|
( PID_STG_CONTENTS == statChunk.attribute.psProperty.propid ) )
|
|
{
|
|
if ( CHUNK_NO_BREAK != statChunk.breakType )
|
|
{
|
|
switch( statChunk.breakType )
|
|
{
|
|
case CHUNK_EOW:
|
|
case CHUNK_EOS:
|
|
break;
|
|
case CHUNK_EOP:
|
|
case CHUNK_EOC:
|
|
cLines++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
ULONG iIntoChunk = 0;
|
|
ULONG cwcRetrieved;
|
|
ULONG iPrevLine = ~0;
|
|
|
|
do
|
|
{
|
|
cwcRetrieved = cwcBufSize;
|
|
hr = xIFilter->GetText( &cwcRetrieved, pwc );
|
|
|
|
pwc[cwcRetrieved] = 0;
|
|
|
|
// The buffer may be filled with zeroes. Nice filter.
|
|
|
|
if ( SUCCEEDED( hr ) )
|
|
{
|
|
if ( 0 != cwcRetrieved )
|
|
cwcRetrieved = __min( cwcRetrieved,
|
|
wcslen( pwc ) );
|
|
|
|
while ( ( iHit < aHits.Count() ) &&
|
|
( aHits[iHit].idChunk == statChunk.idChunk ) &&
|
|
( aHits[iHit].cwcStart >= iIntoChunk ) &&
|
|
( aHits[iHit].cwcStart < ( iIntoChunk + cwcRetrieved ) ) )
|
|
{
|
|
WCHAR *pwcStart;
|
|
|
|
ULONG iLine = cLines +
|
|
CountCR( pwc,
|
|
aHits[iHit].cwcStart - iIntoChunk,
|
|
pwcStart );
|
|
|
|
WCHAR *pwcEnd = wcschr( pwcStart, L'\r' );
|
|
|
|
if ( 0 == pwcEnd )
|
|
pwcEnd = wcschr( pwcStart, L'\n' );
|
|
|
|
if ( 0 != pwcEnd )
|
|
*pwcEnd = 0;
|
|
|
|
if ( iLine != iPrevLine )
|
|
{
|
|
if ( fPrintFile )
|
|
wprintf( L"%ws", pwcFile );
|
|
|
|
wprintf( L"(%u): %ws\n", iLine, pwcStart );
|
|
iPrevLine = iLine;
|
|
}
|
|
|
|
if ( 0 != pwcEnd )
|
|
*pwcEnd = '\r';
|
|
|
|
iHit++;
|
|
}
|
|
|
|
WCHAR * pwcDummy;
|
|
cLines += CountCR( pwc, cwcRetrieved, pwcDummy );
|
|
|
|
iIntoChunk += cwcRetrieved;
|
|
}
|
|
} while( SUCCEEDED( hr ) );
|
|
}
|
|
}
|
|
|
|
hr = xIFilter->GetChunk ( &statChunk );
|
|
}
|
|
|
|
delete [] pwc;
|
|
|
|
if ( FILTER_E_END_OF_CHUNKS == hr )
|
|
hr = S_OK;
|
|
|
|
return hr;
|
|
} //WalkFile
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Function: DoISearchQuery
|
|
//
|
|
// Synopsis: Creates and executes a query, then displays the results.
|
|
//
|
|
// Arguments: [pwcFilename] - Name of the file
|
|
// [pwcQueryRestrition] - The actual query string
|
|
// [fPrintFile] - whether to print the filename
|
|
// [lcid] - Locale of the query
|
|
// [ulDialect] - Dialect of tripolish, 1 or 2.
|
|
//
|
|
// Returns: HRESULT result of the query
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
HRESULT DoISearchQuery(
|
|
WCHAR const * pwcFilename,
|
|
WCHAR const * pwcQueryRestriction,
|
|
BOOL fPrintFile,
|
|
BOOL fDefineCPP,
|
|
LCID lcid,
|
|
ULONG ulDialect )
|
|
{
|
|
// Create an OLE DB query tree from a text restriction
|
|
|
|
DBCOMMANDTREE * pTree;
|
|
ULONG cDefinedProperties = fDefineCPP ? cCPPProperties : 0;
|
|
HRESULT hr = CITextToSelectTreeEx( pwcQueryRestriction, // the query itself
|
|
ulDialect, // dialect to use
|
|
&pTree, // resulting tree
|
|
cDefinedProperties, // C++ properties
|
|
aCPPProperties, // C++ properties
|
|
lcid ); // the locale
|
|
if ( FAILED( hr ) )
|
|
return hr;
|
|
|
|
// Make the ISearchQueryHits object
|
|
|
|
XInterface<ISearchQueryHits> xISearch;
|
|
hr = g_pMakeISearch( xISearch.GetPPointer(),
|
|
pTree,
|
|
0 );
|
|
if ( FAILED( hr ) )
|
|
return hr;
|
|
|
|
XInterface<IFilter> xIFilter;
|
|
|
|
#if 1
|
|
|
|
hr = LoadIFilter( pwcFilename, 0, xIFilter.GetQIPointer() );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
// Fall back on the plain text filter
|
|
|
|
hr = g_pLoadTextFilter( pwcFilename, xIFilter.GetPPointer() );
|
|
if ( FAILED( hr ) )
|
|
return hr;
|
|
}
|
|
|
|
#else
|
|
|
|
// LIFF_LOAD_DEFINED_FILTER: Load the filter found for the file
|
|
// LIFF_IMPLEMENT_TEXT_FILTER_FALLBACK_POLICY: Use the registry key to check to fallback
|
|
// LIFF_FORCE_TEXT_FILTER_FALLBACK: Always fall back to the text filter if no other is available
|
|
|
|
hr = LoadIFilterEx( pwcFilename,
|
|
LIFF_IMPLEMENT_TEXT_FILTER_FALLBACK_POLICY,
|
|
IID_IFilter,
|
|
xIFilter.GetQIPointer() );
|
|
|
|
if ( FAILED( hr ) )
|
|
{
|
|
printf( "can't load filter: %#x\n", hr );
|
|
return hr;
|
|
}
|
|
|
|
#endif
|
|
|
|
ULONG ulFlags;
|
|
hr = xIFilter->Init( IFILTER_INIT_CANON_PARAGRAPHS |
|
|
IFILTER_INIT_CANON_HYPHENS |
|
|
IFILTER_INIT_APPLY_INDEX_ATTRIBUTES,
|
|
0,
|
|
0,
|
|
&ulFlags );
|
|
if ( FAILED( hr ) )
|
|
return hr;
|
|
|
|
hr = xISearch->Init( xIFilter.GetPointer(), ulFlags );
|
|
if ( FAILED( hr ) )
|
|
return hr;
|
|
|
|
//
|
|
// Retrieve all the hit info. the info is wrt output from the IFilter.
|
|
// a separate pass over a different IFilter is needed to match up
|
|
// text to the hit info.
|
|
//
|
|
|
|
TArray<FILTERREGION> aHits;
|
|
|
|
ULONG cRegions;
|
|
FILTERREGION* aRegion;
|
|
hr = xISearch->NextHitOffset( &cRegions, &aRegion );
|
|
|
|
while ( S_OK == hr )
|
|
{
|
|
for ( ULONG i = 0; i < cRegions; i++ )
|
|
aHits.Append( aRegion[i] );
|
|
|
|
CoTaskMemFree( aRegion );
|
|
hr = xISearch->NextHitOffset( &cRegions, &aRegion );
|
|
}
|
|
|
|
#if 0
|
|
for ( ULONG i = 0; i < aHits.Count(); i++ )
|
|
printf( "hit %d, chunk %d start %d extent %d\n",
|
|
i, aHits[i].idChunk, aHits[i].cwcStart, aHits[i].cwcExtent );
|
|
#endif
|
|
|
|
return WalkFile( aHits, xIFilter, pwcFilename, fPrintFile );
|
|
} //DoISearchQuery
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Function: GetQueryFunctions
|
|
//
|
|
// Synopsis: Loads needed undocumented functions from query.dll.
|
|
//
|
|
// Returns: The module handle or 0 on failure.
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
HINSTANCE GetQueryFunctions()
|
|
{
|
|
HINSTANCE h = LoadLibrary( L"query.dll" );
|
|
|
|
if ( 0 != h )
|
|
{
|
|
#ifdef _WIN64
|
|
char const * pcCIShutdown = "?CIShutdown@@YAXXZ";
|
|
char const * pcMakeISearch = "?MakeISearch@@YAJPEAPEAUISearchQueryHits@@PEAVCDbRestriction@@PEBG@Z";
|
|
#else
|
|
char const * pcCIShutdown = "?CIShutdown@@YGXXZ";
|
|
char const * pcMakeISearch = "?MakeISearch@@YGJPAPAUISearchQueryHits@@PAVCDbRestriction@@PBG@Z";
|
|
#endif
|
|
|
|
g_pCIShutdown = (PFnCIShutdown) GetProcAddress( h, pcCIShutdown );
|
|
|
|
if ( 0 == g_pCIShutdown )
|
|
{
|
|
FreeLibrary( h );
|
|
return 0;
|
|
}
|
|
|
|
g_pMakeISearch = (PFnMakeISearch) GetProcAddress( h, pcMakeISearch );
|
|
|
|
if ( 0 == g_pMakeISearch )
|
|
{
|
|
FreeLibrary( h );
|
|
return 0;
|
|
}
|
|
|
|
g_pLoadTextFilter = (PFnLoadTextFilter) GetProcAddress( h, "LoadTextFilter" );
|
|
|
|
if ( 0 == g_pLoadTextFilter )
|
|
{
|
|
FreeLibrary( h );
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return h;
|
|
} //GetQueryFunctions
|
|
|
|
HINSTANCE PrepareForISearch()
|
|
{
|
|
return GetQueryFunctions();
|
|
} //DoneWithISearch
|
|
|
|
void DoneWithISearch( HINSTANCE h )
|
|
{
|
|
g_pCIShutdown();
|
|
FreeLibrary( h );
|
|
} //DoneWithISearch
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Function: DoISearch
|
|
//
|
|
// Synopsis: Invoke ISearch on the file
|
|
//
|
|
// Arguments: [pwcRestriction] -- the query
|
|
// [pwcFilename] -- the file
|
|
// [fPrintFile] -- whether to print the filename
|
|
// [fDefineCPP] -- TRUE to define the C++ properties func and class
|
|
// [lcid] -- locale of the query
|
|
// [ulDialect] -- the dialect of the query language
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
HRESULT DoISearch(
|
|
WCHAR const * pwcRestriction,
|
|
WCHAR const * pwcFilename,
|
|
BOOL fPrintFile,
|
|
BOOL fDefineCPP,
|
|
LCID lcid,
|
|
ULONG ulDialect )
|
|
{
|
|
// Run the query
|
|
|
|
return DoISearchQuery( pwcFilename, pwcRestriction, fPrintFile, fDefineCPP, lcid, ulDialect );
|
|
} //DoISearch
|
|
|