private void OpenFile_Click(object sender, EventArgs e)
{
OpenFileDialog fileName = new OpenFileDialog();
fileName.InitialDirectory = Application.StartupPath;
fileName.Filter = "txt files (*.txt)|*.txt";
fileName.FilterIndex = 1;
fileName.RestoreDirectory = true;
if (fileName.ShowDialog() == DialogResult.OK)
{
//MessageBox.Show("OK");
string path = fileName.FileName.ToString();
backEnd = new LALR1(path);
Dictionary <string, List <string> > rule = backEnd.GetRuleSet();
RuleDisplay.Clear();
if (rule == null)
{
MessageBox.Show("LALR1运行失败，输入的规则式有问题");
}
else
{
foreach (string key in rule.Keys)
{
foreach (string showRule in rule[key])
{
RuleDisplay.AppendText(key + "->" + showRule + "\r\n");
}
}
backEnd.SolveFirstSet();
backEnd.SolveFollowSet();
backEnd.BuildLR1ForView();
backEnd.ConvertLR1ToLALR1();
isSyntaxValid = backEnd.BuildTable();
MessageBox.Show("输入的规则式合法");
GetLR0.Enabled = true;
}
}
}
public void InputAlorithm(LALR1 al)
{
alogrithm = al;
}
