157 lines
3.8 KiB
C++
157 lines
3.8 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 2000.
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//
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// File: YYBase.hxx
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//
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// Contents: Custom base class for YYPARSER
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//
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// History: 18-Apr-2000 KitmanH Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include "parsepl.h"
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#include <dynstack.hxx>
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#include <set.hxx>
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class YYLEXER;
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class CValueParser;
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typedef struct
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{
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CDbColId *pps;
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DBTYPE dbType;
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} PROPINFO;
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typedef struct
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{
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int iGenerateMethod;
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XPtrST<WCHAR> xwszPropName;
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} STATE;
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//+---------------------------------------------------------------------------
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//
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// Class: CTripYYBase
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//
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// Purpose: Custom base class for BYACC-based parser. Encapsulates
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// Tripoli-specific features and data members.
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//
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// History: 18-Apr-2000 KitmanH Created
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//
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//----------------------------------------------------------------------------
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class CTripYYBase
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{
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public:
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CTripYYBase( IColumnMapper & ColumnMapper,
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LCID & locale,
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YYLEXER & yylex );
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~CTripYYBase();
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#ifdef YYAPI_VALUETYPE
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CDbRestriction* GetParseTreeEx(); // Get result of parse
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#endif
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//
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// Members used in YYPARSER
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//
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void InitState(void);
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void PushProperty(WCHAR const * wszProperty);
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void PopProperty(void);
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void SetCurrentGenerate(int iGenerateMethod);
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void SaveState(void);
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void RestoreState(void);
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void GetCurrentProperty(CDbColId ** pp_ps, DBTYPE *dbType);
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void GetCurrentGenerate(int *iGenerateMethod);
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void SetDebug();
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CDbContentRestriction *BuildPhrase(WCHAR *wcsPhrase, int iGenMethod);
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//
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// Lexer pass-through
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//
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void yyprimebuffer(const YY_CHAR *pszBuffer);
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protected:
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void triperror( char const * szError );
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YYLEXER & _yylex;
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void Trace(TCHAR *message);
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void Trace(TCHAR *message, const TCHAR *tokname, short state = 0);
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void Trace(TCHAR *message, int state, short tostate = 0, short token = 0);
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friend class YYLEXER;
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// Storage to get things de-allocated from the parser stack if the parser throws
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TSet< CDbRestriction > _setRst;
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TSet< CStorageVariant > _setStgVar;
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TSet< CValueParser > _setValueParser;
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// Remember state
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BOOL fDeferredPop;
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LCID _lcid;
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private:
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IColumnMapper & _ColumnMapper;
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STATE _currentState;
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CDynStack<STATE> _savedStates;
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CDynStack<WCHAR> _propNameStack;
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CValueParser
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//
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// Purpose: To intepret a sequence of tokens from a scanner
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// and place the results in a CStorageVariant
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//
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// Notes: This class throws CParserException when errors occur.
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// Copied from CPropertyValueParser, and updated to
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// set value in AddValue rather than ctor.
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//
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// History: 02-Mar-95 t-colinb Created.
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// 01-Oct-97 emilyb copied from CPropertyValueParser
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// 02-Sep-98 KLam Added locale.
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//
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//----------------------------------------------------------------------------
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class CValueParser
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{
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public :
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CValueParser( BOOL fVectorElement, DBTYPE PropType, LCID locale );
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void AddValue(WCHAR const * pwszValue);
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CStorageVariant *AcquireStgVariant( void )
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{
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return _pStgVariant.Acquire();
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}
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private :
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BOOL CheckForRelativeDate( WCHAR const * phrase, FILETIME & ft );
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void ParseDateTime( WCHAR const * phrase, FILETIME & ft );
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LCID _locale;
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XPtr<CStorageVariant> _pStgVariant;
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BOOL _fVector;
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DBTYPE _PropType;
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unsigned _cElements;
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};
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