private void 词法分析器AToolStripMenuItem_Click(object sender, EventArgs e)
{
Scanner scan = new Scanner();
txtMsg.Text = "";
Scanner.LineNo = 1;
txtToken.Text = "------------------token表信息...-----------------" + "\r\n\r\n" + "行" + "\t" + "单词" + "\t\t" + "种别码" + "\r\n";
string str = txtContent.Text + '\0';
txtMsg.Text = "---------------词法分析信息...---------------" + "\r\n\r\n";
scan.scanner(str);
scan.write_token();
scan.write_sym();
try
{
FileStream fs = new FileStream("token.txt", FileMode.Open);
StreamReader sr = new StreamReader(fs);
txtToken.Text += sr.ReadToEnd();
sr.Close();
}
catch (Exception)
{
throw;
}
txtMsg.Text += "词法分析结束 " + "- " + scan.errors + " error(s)" + "\r\n";
显示符号表信息ToolStripMenuItem.Checked = false;
if (scan.errorList.Count != 0)
{
foreach (var i in scan.errorList)
{
txtMsg.Text += i.ToString() + "\r\n";
}
}
msgError = txtMsg.Text;
if (scan.errorList.Count == 0)
{
Parser paresr = new Parser();
paresr.parser(scan.list);
txtMsg.Text = "";
for (int i = 0; i < paresr.error.Count; i++)
{
txtMsg.Text += paresr.error[i] + "\r\n";
}
txtMsg.Text += "\r\n" + "语法分析结束 " + "- " + paresr.error.Count + " error(s)" + "\r\n";
语法分析器ToolStripMenuItem.Enabled = true;
toolStripButton1.Enabled = true;
txtToken.Text = "------------------中间代码...-----------------" + "\r\n\r\n" + "NO" + "\t" + "OP" + "\t\t" + "arg1" + "\t\t" + "arg2" + "\t\t" + "result" + "\r\n";
}
}
