public string ReadFile(string line)
{
bool empty = false;
if (line.Contains("alphabet"))
{
//Get the alphabet
Alpha = GetWord(line);
}
else if (line.Contains("stack"))
{
Stack = GetWord(line);
}
else if (line.Contains("states"))
{
string s = GetWord(line);
List <string> sta = new List <string>();
sta = s.Split(',').ToList <string>();
foreach (string sa in sta)
{
int i = 0;
if (i == 0)
{
state.Add(new State(sa, false, true));
}
else
{
state.Add(new State(sa, false, false));
}
i++;
}
}
else if (line.Contains("final"))
{
string f = GetWord(line);
List <string> final = new List <string>();
final = f.Split(',').ToList <string>();
foreach (string fi in final)
{
foreach (State i in state)
{
if (fi == i.Stat)
{
i.Final = true;
}
}
}
}
else if (line.Contains("transitions"))
{
trans = true;
if (Alpha == "")
{
empty = true;
}
}
else if (line.Contains("dfa"))
{
bool b = false;
string f = GetWord(line);
if (f == "y")
{
b = true;
}
if (b == CheckDFA())
{
return("\tRight");
}
else
{
return("\tWrong");
}
}
else if (line.Contains("words"))
{
word = true;
}
else if (line.Contains("end."))
{
trans = false;
word = false;
Alpha = new String(Alpha.Distinct().ToArray());
//foreach (Transmission t in transmissions)
//{
// Console.WriteLine(t.In.Stat + "," + t.Value + " --> " + t.Out.Stat);
//}
}
else if (trans)
{
string stackremove = "";
string stackadd = "";
if (line.Contains("["))
{
string stackItems;
int Start = line.IndexOf('[');
int End = line.IndexOf(']');
stackItems = line.Substring(Start + 1, End - Start - 1);
stackremove = stackItems.Substring(0, 1);
stackadd = stackItems.Substring(2);
line = line.Replace("[" + stackItems + "]", "");
}
line = line.Replace("-->", ",");
if (line != "")
{
List <string> s = line.Split(',').ToList();
Regex r = new Regex("^[a-zA-Z&]*$");
if (r.IsMatch(s[1]))
{
State sin = null;
State sout = null;
foreach (State ss in state)
{
if (ss.Stat == s[0])
{
sin = ss;
}
if (ss.Stat == s[2])
{
sout = ss;
}
}
Transmission t = new Transmission(sin, sout, s[1]);
if (stackadd != "" && stackremove != "")
{
t.Sremove = stackremove;
t.Sadd = stackadd;
}
transmissions.Add(t);
foreach (State ss in state)
{
if (ss.Stat == s[0])
{
ss.outgoing.Add(t);
}
if (ss.Stat == s[2])
{
ss.incoming.Add(t);
}
}
if (empty && s[1] != "&")
{
Alpha += s[1];
}
}
}
}
else if (word)
{
List <string> s = line.Split(',').ToList();
if (CheckWord(s[0], s[1]))
{
return("\tRight");
}
else
{
return("\tWrong");
}
}
return("");
}
private void CreateTransition(int startIndex, State endState, char letter = '_')
{
var transition = new Transmission(States[startIndex - 1], endState, letter.ToString());
States[startIndex - 1].outgoing.Add(transition);
}