dtestdlg.cpp

这是一个编译递归子程序

// dtestDlg.cpp : implementation file
//

#include "stdafx.h"
#include "dtest.h"
#include "dtestDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

extern int i=0,k=0;






void FunE(char *ch);
void FunT(char *ch);
void FunS(char *ch);
void FunW(char *ch);
void FunF(char *ch);
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDtestDlg dialog

CDtestDlg::CDtestDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDtestDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDtestDlg)
	m_juzi = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDtestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDtestDlg)
	DDX_Text(pDX, IDC_EDIT1, m_juzi);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDtestDlg, CDialog)
	//{{AFX_MSG_MAP(CDtestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, Onfenxi)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDtestDlg message handlers

BOOL CDtestDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDtestDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CDtestDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CDtestDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}






void CDtestDlg::FunE(char* ch)

{
	//if(ch[0]=='i')
		//	AfxMessageBox("cccccc");
		//	else
		//	AfxMessageBox("ddddd");
	
	FunT(ch);
	FunS(ch);
}

void CDtestDlg::FunT(char *ch){
	FunF(ch);
	FunW(ch);
}

void CDtestDlg::FunS(char *ch){
	if(*(ch+i)=='+'){
		i++;
        FunT(ch);
		FunS(ch);
	}
}

void CDtestDlg::FunW(char *ch){
    if(*(ch+i)=='*'){
		i++;
        FunF(ch);
		FunW(ch);
	}
}

void CDtestDlg::FunF(char *ch){
	if(*(ch+i)=='i') i++;
	else{
		if(*(ch+i)=='('){
			i++;
			FunE(ch);
			if(*(ch+i)==')') i++;
			else {AfxMessageBox("此句子不可以由该文法推出！！"); k=1;}
		}
		else {AfxMessageBox("此句子不可以由该文法推出！！"); k=1;}
	}
}







void CDtestDlg::Onfenxi() 
{

	char word[50];
	char *ff[]={"E→E+T|T","T→T*F|F","F→(E)|i"};
    int index;
	this->UpdateData(true);//获得输入的字符串
	for(index=0;index<m_juzi.GetLength();index++)
	{
		
		word[index] = m_juzi.GetAt(index);
	}
	word[index]='\0';

 

	FunE(word);

    if(k==0) AfxMessageBox("此句子可以由该文法推出！！");
	// TODO: Add your control notification handler code here
	
}