Source code of Windows XP (NT5)
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// 10/12/99 scotthan created
#ifndef __FILTGREP_H__
#define __FILTGREP_H__
#if WINNT
#ifndef _USE_FILTERGREP_
#define _USE_FILTERGREP_
#endif//_USE_FILTERGREP_
#include <filter.h> // STAT_CHUNK
// CFilterGrep::Initialize() dwFlags values:
#define FGIF_CASESENSITIVE 0x00000001 // grep in case-sensitive manner
#define FGIF_GREPFILENAME 0x00000002 // grep filename
#define FGIF_GREPCONTENT 0x00000004 // grep content
#define FGIF_GREPPROPERTIES 0x00000008 // grep properties
#define FGIF_BLANKETGREP (FGIF_GREPCONTENT|FGIF_GREPPROPERTIES)
#ifdef __cplusplus
class CGrepTokens;
class CFilterGrep // filtergrep state engine
{
public:
// Methods
STDMETHODIMP Initialize(UINT nCodePage, LPCWSTR pszMatch, LPCWSTR pszExclude, DWORD dwFlags);
STDMETHODIMP Grep(IShellFolder *psf, LPCITEMIDLIST pidl, LPCTSTR pszName);
STDMETHODIMP Reset();
// Properties
STDMETHODIMP GetCodePage( UINT* pnCodePage ) const;
STDMETHODIMP GetMatchTokens( OUT LPWSTR pszMatch, UINT cchMatch ) const;
STDMETHODIMP GetExcludeTokens( OUT LPWSTR pszMatch, UINT cchMatch ) const;
STDMETHODIMP GetFlags( DWORD* pdwFlags ) const;
private:
// Helpers
STDMETHODIMP _GetThreadGrepBuffer( DWORD dwThreadID, ULONG cchNeed, LPWSTR* ppszBuf );
STDMETHODIMP _FreeThreadGrepBuffer( DWORD dwThreadID );
STDMETHODIMP_(void) _ClearGrepBuffers();
STDMETHODIMP _GrepText( IFilter* pFilter, STAT_CHUNK* pstat, DWORD dwThreadID );
STDMETHODIMP _GrepValue( IFilter* pFilter, STAT_CHUNK* pstat );
STDMETHODIMP _GrepProperties(IPropertySetStorage *pss);
STDMETHODIMP _GrepPropStg(IPropertyStorage* pstg, ULONG cspec, PROPSPEC rgspec[]);
STDMETHODIMP _GrepEnumPropStg(IPropertyStorage* pstg);
STDMETHODIMP_(BOOL) _IsRestrictedFileType(LPCWSTR pwszFile);
void _EnterCritical() { EnterCriticalSection( &_critsec ); }
void _LeaveCritical() { LeaveCriticalSection( &_critsec ); }
// Data
HDPA _hdpaGrepBuffers;
CRITICAL_SECTION _critsec;
CGrepTokens* _pTokens;
DWORD _dwFlags;
LPWSTR _pwszContentRestricted,
_pwszPropertiesRestricted;
public:
// Ctor, Dtor
CFilterGrep();
~CFilterGrep();
};
#endif //__cplusplus
#define FACILITY_FILTERGREP 77 // arbitrary
#define MAKE_FILTGREP_ERROR(sc) MAKE_HRESULT(SEVERITY_ERROR,FACILITY_FILTERGREP,sc)
#define MAKE_FILTGREP_WARNING(sc) MAKE_HRESULT(SEVERITY_SUCCESS,FACILITY_FILTERGREP,sc)
#define FG_E_NOFILTER MAKE_FILTGREP_ERROR(0x0001)
#endif WINNT
#endif __FILTGREP_H__