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資源簡介

LL1文法分析器 模擬LL1文法分析過程 實現功能:1.文法的輸入、表示及轉化模塊。2.求每個非終結符FIRST 集FOLLOW集和SELECT集模塊。3.預測分析表的構建模塊。4.文法的檢驗及消除左公因子和左遞歸模塊。5.對輸入終結符串的判斷,是否為LL1文法,并進一步分析。

資源截圖

代碼片段和文件信息

//?Dialog1.cpp?:?implementation?file
//

#include?“stdafx.h“
#include?“LL1_Grammar.h“
#include?“Dialog1.h“

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

/////////////////////////////////////////////////////////////////////////////
//?CDialog1?dialog


CDialog1::CDialog1(CWnd*?pParent?/*=NULL*/)
:?CDialog(CDialog1::IDD?pParent)
{
//{{AFX_DATA_INIT(CDialog1)
//}}AFX_DATA_INIT
}


void?CDialog1::DoDataExchange(CDataExchange*?pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDialog1)
DDX_Control(pDX?IDC_PEDIT?m_pedit);
DDX_Control(pDX?IDC_VTLIST?m_vtlist);
DDX_Control(pDX?IDC_VTEDIT?m_vtedit);
DDX_Control(pDX?IDC_VNLIST?m_vnlist);
DDX_Control(pDX?IDC_VNEDIT?m_vnedit);
DDX_Control(pDX?IDC_STARTEDIT?m_startedit);
DDX_Control(pDX?IDC_PLIST?m_plist);
//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDialog1?CDialog)
//{{AFX_MSG_MAP(CDialog1)
ON_BN_CLICKED(IDC_EXIT?OnExit)
ON_BN_CLICKED(IDC_VNADD?OnVnadd)
ON_BN_CLICKED(IDC_VNDEL?OnVndel)
ON_BN_CLICKED(IDC_VNCLR?OnVnclr)
ON_BN_CLICKED(IDC_VTADD?OnVtadd)
ON_BN_CLICKED(IDC_VTDEL?OnVtdel)
ON_BN_CLICKED(IDC_VTCLR?OnVtclr)
ON_BN_CLICKED(IDC_PADD?OnPadd)
ON_BN_CLICKED(IDC_PDEL?OnPdel)
ON_BN_CLICKED(IDC_PCLR?OnPclr)
ON_BN_CLICKED(IDC_SAVE?OnSave)
ON_BN_CLICKED(IDC_IMPORT?OnImport)
ON_BN_CLICKED(IDC_EXIT?OnExit)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
//?CDialog1?message?handlers

void?CDialog1::OnExit()?
{
//?TODO:?Add?your?control?notification?handler?code?here
//CDialog1::OnCancel();
AfxGetMainWnd()->SendMessage(WM_CLOSE);
}

void?CDialog1::OnVnadd()?//添加非終結符
{
//?TODO:?Add?your?control?notification?handler?code?here
CString?string;
m_vnedit.GetWindowText(string);
if(string.GetLength()!=1)
MessageBox(“您輸入的非終結符有誤,請檢查!““錯誤“?MB_OK?|?MB_IConstop);
else
{
if((m_vnlist.FindStringExact(-1?string)?==?LB_ERR)?&&?(string!=““))
m_vnlist.AddString(string);
}
m_vnedit.SetFocus();
m_vnedit.SetSel(0?-1);
}

void?CDialog1::OnVndel()?//刪除非終結符
{
//?TODO:?Add?your?control?notification?handler?code?here
int?iPos;
if?((iPos?=?m_vnlist.GetCurSel())?!=?LB_ERR)?
m_vnlist.DeleteString(iPos);
m_vnedit.SetFocus();
m_vnedit.SetSel(0?-1);
}

void?CDialog1::OnVnclr()?//清空非終結符集合
{
//?TODO:?Add?your?control?notification?handler?code?here
m_vnlist.ResetContent();
m_vnedit.SetWindowText(““);
m_startedit.SetWindowText(““);
}

void?CDialog1::OnVtadd()?//添加終結符
{
//?TODO:?Add?your?control?notification?handler?code?here
CString?string;
m_vtedit.GetWindowText(string);
if(string.GetLength()!=1)
MessageBox(“您輸入的終結符有誤,請檢查!““錯誤“?MB_OK?|?MB_IConstop);
else
{
if((m_vtlist.FindStringExact(-1?string)?==?LB_ERR)?&&?(string!=““))
m_vtlist.AddString(string);
}
m_vtedit.SetFocus();
m_vtedit.SetSel(0?-1);
}

void?CDia

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????474598??2012-08-31?00:10??LL1_Grammar\0.bmp

?????文件????2359350??2012-08-30?22:08??LL1_Grammar\1.bmp

?????文件????2359350??2012-08-30?22:08??LL1_Grammar\2.bmp

?????文件????2359350??2012-08-30?22:08??LL1_Grammar\3.bmp

?????文件????2359350??2012-08-30?22:08??LL1_Grammar\4.bmp

?????文件????2359350??2012-08-30?22:08??LL1_Grammar\5.bmp

?????文件????2359350??2012-08-30?22:08??LL1_Grammar\6.bmp

?????文件??????39664??2012-08-31?13:16??LL1_Grammar\Debug\Dialog1.obj

?????文件??????????0??2012-08-24?17:30??LL1_Grammar\Debug\Dialog1.sbr

?????文件??????36013??2012-08-31?05:05??LL1_Grammar\Debug\Dialog2.obj

?????文件??????39736??2012-08-31?05:07??LL1_Grammar\Debug\Dialog3.obj

?????文件?????143356??2012-08-31?05:12??LL1_Grammar\Debug\Dialog4.obj

?????文件??????62754??2012-08-30?16:55??LL1_Grammar\Debug\explorer1.obj

?????文件?????179969??2012-09-02?09:32??LL1_Grammar\Debug\Grammar.obj

?????文件??????????0??2012-08-24?17:30??LL1_Grammar\Debug\Grammar.sbr

?????文件??????34042??2012-08-31?05:12??LL1_Grammar\Debug\GrammarDlg.obj

?????文件??????15266??2012-08-31?00:55??LL1_Grammar\Debug\InstructionDlg.obj

?????文件????3458048??2012-08-24?17:30??LL1_Grammar\Debug\LL1_Grammar.bsc

?????文件?????245823??2012-09-02?09:32??LL1_Grammar\Debug\LL1_Grammar.exe

?????文件?????497972??2012-09-02?09:32??LL1_Grammar\Debug\LL1_Grammar.ilk

?????文件??????14186??2012-08-24?17:30??LL1_Grammar\Debug\LL1_Grammar.obj

?????文件????7065680??2012-08-24?17:30??LL1_Grammar\Debug\LL1_Grammar.pch

?????文件?????836608??2012-09-01?09:43??LL1_Grammar\Debug\LL1_Grammar.pdb

?????文件???????6108??2012-08-31?05:12??LL1_Grammar\Debug\LL1_Grammar.res

?????文件??????????0??2012-08-24?17:30??LL1_Grammar\Debug\LL1_Grammar.sbr

?????文件??????71192??2012-08-31?05:12??LL1_Grammar\Debug\LL1_GrammarDlg.obj

?????文件??????????0??2012-08-24?17:30??LL1_Grammar\Debug\LL1_GrammarDlg.sbr

?????文件??????17120??2012-08-27?22:28??LL1_Grammar\Debug\Precept.obj

?????文件??????????0??2012-08-24?17:30??LL1_Grammar\Debug\Precept.sbr

?????文件??????28311??2012-08-31?00:58??LL1_Grammar\Debug\RelationDlg.obj

............此處省略64個文件信息

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