uconditionquery.h

我写的抽象语法树

//---------------------------------------------------------------------------

#ifndef UConditionQueryH
#define UConditionQueryH
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
#include <Buttons.hpp>
#include <ExtCtrls.hpp>
#include "BooleanExp.h"
#include <db.hpp>
//---------------------------------------------------------------------------
class TConditionQuery : public TForm
{
__published:	// IDE-managed Components
        TListBox *ListBox1;
        TLabel *Label1;
        TLabel *Label2;
        TLabel *Label3;
        TComboBox *ComboBox1;
        TComboBox *ComboBox2;
        TComboBox *ComboBox3;
        TRadioGroup *RadioGroup1;
        TBitBtn *BitBtn_AddCondition;
        TBitBtn *BitBtn_OK;
        TBitBtn *BitBtn_Cancel;
        void __fastcall FormShow(TObject *Sender);
        void __fastcall ComboBox3DropDown(TObject *Sender);
        void __fastcall BitBtn_CancelClick(TObject *Sender);
        void __fastcall BitBtn_AddConditionClick(TObject *Sender);
        void __fastcall BitBtn_OKClick(TObject *Sender);
private:
      	 BooleanExp* Factor(int& index,int size);
         BooleanExp* Expr(int& index,int size);
         BooleanExp* Term(int& index,int size);
          // User declarations
public:		// User declarations
         __fastcall TConditionQuery(TComponent* Owner,TListView * ref);
         __fastcall TConditionQuery(TComponent* Owner,TDataSet* ref);
         void __fastcall ParseFields();
         TListView* refView;
         BooleanExp* exp;
         int m_iType;
         TDataSet *m_DataSet;
         std::vector<AnsiString> vRelation;
         std::vector<AnsiString> vCondition;
         AnsiString m_sOriginFilter;
         TStringList *m_slFieldLabels;
         TStringList *m_slFieldNames;
         int m_VFieldCount;
};
//---------------------------------------------------------------------------
extern PACKAGE TConditionQuery *ConditionQuery;
//---------------------------------------------------------------------------
#endif