public void ReadGrammar(string file)
{
StreamReader fs = null;
try
{
fs = new StreamReader(file);
}catch (Exception) {
Console.WriteLine("打开文件出现问题！");
return;
}
while (fs.EndOfStream != true)
{
String aline = fs.ReadLine();
String[] part = aline.Split("->".ToCharArray());
String lBufen = part[0];
String[] rBufen = part[2].Split(' ');
TuidaoShi newTuidaoshi = new TuidaoShi();
newTuidaoshi.Add(lBufen, rBufen);
garmmarList.Add(newTuidaoshi);
//add into allFuhao
if (allFuhao.Contains(lBufen) == false)
{
allFuhao.Add(lBufen);
}
foreach (string a in rBufen)
{
if (allFuhao.Contains(a) == false)
{
allFuhao.Add(a);
}
}
}
}
public bool Equals(TuidaoShi i)
{
if (i.ElementAt(0).Key.Equals(this.ElementAt(0).Key) == true &&
i.ElementAt(0).Value.Length == this.ElementAt(0).Value.Length)
{
for (int k = 0; k < this.ElementAt(0).Value.Length; k++)
{
if (i.ElementAt(0).Value[k].Equals(this.ElementAt(0).Value[k]) == false)
{
return(false);
}
}
return(true);
}
return(false);
}
public bool Drive(string file, out string output) //file 是总符号表
{
output = "";
StreamReader fs = new StreamReader(file);
List <string> stack = new List <string>();
stack.Add("0");
fs.ReadLine(); //第一行标题，没用
string[] aLine = fs.ReadLine().Split('\t');
string aFuhao = aLine[0];
while (true)
{
int stackstatus = Convert.ToInt32(stack.ElementAt(stack.Count - 1));
string[] status = actionTable.Get(stackstatus, aFuhao);
if (status == null)
{
Console.WriteLine("错误。。");
output += "错误。。。\n";
fs.Close();
return(false);
}
else if (status[0].Equals("s"))
{
string info = null;
stack.Add(aFuhao);
stack.Add(status[1]);
aLine = fs.ReadLine().Split('\t');
aFuhao = aLine[0];
foreach (string i in stack)
{
info += i + " ";
}
info += "移动进栈\t\t" + aFuhao + "\n";
output += info;
Console.WriteLine(info);
if (aFuhao == "NUM")
{
int i = Convert.ToInt16(aLine[1]);
shuStack.Push(numTable[i]);
}
else if (aFuhao == "ID")
{
int i = Convert.ToInt16(aLine[1]);
shuStack.Push(idTable[i]);
}
else if (aFuhao != "(" && aFuhao != ")" && aFuhao != ";" && aFuhao != "{" && aFuhao != "}")
{
shuStack.Push(aFuhao);
}
}
else if (status[0].Equals("r"))
{
string info = null;
int n = Convert.ToInt32(status[1]);
TuidaoShi needTuidaoshi = garmmarList[n];
int len = needTuidaoshi.ElementAt(0).Value.Length;
for (int i = 0; i < len * 2; i++)
{
stack.RemoveAt(stack.Count - 1);
}
stackstatus = Convert.ToInt32(stack.ElementAt(stack.Count - 1));
stack.Add(needTuidaoshi.ElementAt(0).Key);
int go = gotoTable.Get(stackstatus, needTuidaoshi.ElementAt(0).Key);
stack.Add(go.ToString());
foreach (string i in stack)
{
info += i + " ";
}
info += "用 ";
info += needTuidaoshi.ToString();
info += " 进行归约\t";
info += aFuhao + "\n";
output += info;
//////////////////////////////////////////////////////////////
}
else if (status[0].Equals("acc"))
{
Console.WriteLine("yes");
output += "yes" + "\n";
fs.Close();
return(true);
}
else
{
Console.WriteLine("no");
output += "no" + "\n";
fs.Close();
return(false);
}
}
}
