发布时间 : 星期六 文章词法分析器设计实验报告更新完毕开始阅读
}
public struct S_GOTO {
public int s_num;//状态号 public Char Terminator; public int Goto; }
public S_ACTION []Action=new S_ACTION[100]; public S_GOTO []Goto=new S_GOTO[50];
public Stack
public S_PRODUCTION[] Production = new S_PRODUCTION[6]; public String ACTION(int s_num, Char Terminator) {
for (int i = 0; i < Action.Length; i++) {
if (Action[i].s_num==s_num&&Action[i].Terminator==Terminator) {
return Action[i].Action; } }
return null; }
public int GOTO(int s_num, Char Terminator) {
for (int i = 0; i < Goto.Length; i++) {
if (Goto[i].s_num == s_num && Goto[i].Terminator == Terminator) {
return Goto[i].Goto; } }
return -1; }
public Form1() {
InitializeComponent();
this.dataGridView1.ColumnHeadersHeight = 40; this.dataGridView1.ColumnHeadersHeightSizeMode DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
this.dataGridView1.AddSpanHeader(1, 6, \动作)\ this.dataGridView3.ColumnHeadersHeight = 40; this.dataGridView3.ColumnHeadersHeightSizeMode DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
=
=
this.dataGridView3.AddSpanHeader(0, 3, \转换)\ textBox1.Text = \ }
private void InitProduction() { Production[0].num = 1;
Production[0].Nonterminal = 'E'; Production[0].Production = \
Production[1].num = 2;
Production[1].Nonterminal = 'E'; Production[1].Production = \
Production[2].num = 3;
Production[2].Nonterminal = 'T'; Production[2].Production = \
Production[3].num = 4;
Production[3].Nonterminal = 'T'; Production[3].Production = \
Production[4].num = 5;
Production[4].Nonterminal = 'F'; Production[4].Production = \
Production[5].num = 6; Production[5].Nonterminal = 'F'; Production[5].Production = \ }
private void addActionData(){
DataTable dt = new DataTable(); dt.Columns.Add(\ dt.Columns.Add(\ dt.Columns.Add(\ dt.Columns.Add(\ dt.Columns.Add(\ dt.Columns.Add(\ dt.Columns.Add(\ for (int i = 0; i <12; i++) {
for (int j = 0; j < Action.Length-6; j++) {
if (Action[j].s_num==i&&Action[j].Terminator=='i') {
dt.Rows.Add(i.ToString(), Action[j].Action, Action[j+1].Action,
Action[j+2].Action, Action[j+3].Action, Action[j+4].Action, Action[j+5].Action); break; } } }
this.dataGridView1.DataSource = dt; }
private void addGotoData(){
DataTable dt = new DataTable(); dt.Columns.Add(\ dt.Columns.Add(\ dt.Columns.Add(\ String data1,data2,data3;
for (int j = 0; j < Goto.Length - 6; j++) if (Goto[j].Terminator == 'E') {
data1 = Goto[j].Goto.ToString(); data2=Goto[j+1].Goto.ToString(); data3 = Goto[j + 2].Goto.ToString(); if (Goto[j].Goto == 0) data1 = \
if (Goto[j+1].Goto == 0) data2 = \
if (Goto[j+2].Goto == 0) data3 = \ dt.Rows.Add(data1, data2, data3); }
this.dataGridView3.DataSource = dt; }
private String Reverse(String s) {
String str = \
for (int i = 0; i < s.Length; i++) {
str = str + s[s.Length - i - 1]; }
return str; }
private void InitStack(){ S_Stack.Clear(); S_Stack.Push(0); Sym_Stack = \
In_Stack = textBox1.Text+\
}
private int getStringInt(String s) { int num = 0; String str=\ if (s != null) {
for (int i = 1; i < s.Length; i++) str = str + s[i]; try {
num = int.Parse(str); }
catch (Exception) {
error = 1;
MessageBox.Show(\输入字符串有错误，请检查错误！\ } } else {
error = 1;
MessageBox.Show(\输入字符串有错误，请检查错误！\ }
return num; }
private void addData(String s1,String s2,String s3,String s4,String s5){ DataGridViewRow dgr = new DataGridViewRow(); DataGridViewTextBoxCell dgc1 = new DataGridViewTextBoxCell(); DataGridViewTextBoxCell dgc2 = new DataGridViewTextBoxCell(); DataGridViewTextBoxCell dgc3 = new DataGridViewTextBoxCell(); DataGridViewTextBoxCell dgc4 = new DataGridViewTextBoxCell(); DataGridViewTextBoxCell dgc5 = new DataGridViewTextBoxCell(); dgc1.Value = s1; dgc2.Value = s2; dgc3.Value = s3; dgc4.Value = s4; dgc5.Value = s5; dgr.Cells.Add(dgc1); dgr.Cells.Add(dgc2); dgr.Cells.Add(dgc3); dgr.Cells.Add(dgc4); dgr.Cells.Add(dgc5);
dataGridView2.Rows.Add(dgr); }
private String getStackString(Stack