public static void Test1()
{
HashSet<char> terms = new HashSet<char>();
terms.Add('+');
terms.Add('e');
terms.Add('*');
terms.Add('(');
terms.Add(')');
terms.Add('a');
HashSet<char> nonTerms = new HashSet<char>();
nonTerms.Add('S');
nonTerms.Add('A');
nonTerms.Add('B');
nonTerms.Add('C');
nonTerms.Add('D');
Pair<char, string> p1 = new Pair<char, string>('S', "BA");
Pair<char, string> p2 = new Pair<char, string>('A', "+BA");
Pair<char, string> p3 = new Pair<char, string>('A', "e");
Pair<char, string> p4 = new Pair<char, string>('B', "DC");
Pair<char, string> p5 = new Pair<char, string>('C', "*DC");
Pair<char, string> p6 = new Pair<char, string>('C', "e");
Pair<char, string> p7 = new Pair<char, string>('D', "(S)");
Pair<char, string> p8 = new Pair<char, string>('D', "a");
List<Pair<char, string>> rules = new List<Pair<char, string>>();
rules.Add(p1);
rules.Add(p2);
rules.Add(p3);
rules.Add(p4);
rules.Add(p5);
rules.Add(p6);
rules.Add(p7);
rules.Add(p8);
first_1 f = new first_1(terms, nonTerms, rules);
f.find_FIRST();
f.Output_Grammar();
Console.WriteLine();
f.Output_FIRST();
}
private void button2_Click(object sender, EventArgs e)
{
int k = Convert.ToInt32(textBox8.Text);
if (k <= 0 || k > 3)
{
string message = "Введите k = 1, 2 или 3!";
string caption = "Неверный ввод k";
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result;
// Displays the MessageBox.
result = MessageBox.Show(message, caption, buttons);
return;
}
button2.Enabled = false;
dataGridView2.Visible = true;
HashSet<char> terms = new HashSet<char>();
for (int i = 0; i < textBox2.Text.Length; i++)
terms.Add(textBox2.Text[i]);
HashSet<char> nonTerms = new HashSet<char>();
for (int i = 0; i < textBox4.Text.Length; i++)
nonTerms.Add(textBox4.Text[i]);
List<Pair<char, string>> rules = new List<Pair<char, string>>();
int countRow = Convert.ToInt32(textBox7.Text);
for (int i = 0; i < countRow; i++)
{
char start = Convert.ToChar(dataGridView1[0, i].Value);
string end = dataGridView1[1, i].Value.ToString();
Pair<char, string> p = new Pair<char, string>(start, end);
rules.Add(p);
}
switch (k)
{
case 1:
{
first_1 first = new first_1(terms, nonTerms, rules);
first.find_FIRST();
Output_FIRST(k, first.dic_first);
break;
}
case 2:
{
first_2 first = new first_2(terms, nonTerms, rules);
first.find_FIRST();
Output_FIRST(k, first.dic_first);
break;
}
case 3:
{
first_3 first = new first_3(terms, nonTerms, rules);
first.find_FIRST();
Output_FIRST(k, first.dic_first);
break;
}
default:
{
break;
}
}
button3.Enabled = true;
}
