private static void Create_I0(string s, Graf g, int contor = 0, bool reset_parcurs = false)
{
if (reset_parcurs == false)
{
for (int i = 0; i < parcurs.Count; i++)
{
parcurs[i] = false;
}
}
if (contor == 0)
{
//s='S'>.S,$'
//List<string> generated = new List<string>();
List <string> firstAfterDotProductions = new List <string>();
var firstAfterDot = s.Split('.')[1][0].ToString(); //S
var afterDot = s.Split('.')[1].ToString();
var afterComma = s.Split(',')[1].ToString();
var items = Dictionary_Grammer.Where(elem => elem.Value[0].ToString().Equals(firstAfterDot));
foreach (var item in items)
{
var left = item.Value[0].ToString();
var right = item.Value.Split('>')[1];
//generated.Add(left + ">." + right + ",");
if (firstAfterDot.Equals(right[0].ToString()))
{
firstAfterDotProductions.Add(right.Substring(1));
}
}
//string lookahead = first(afterDot.Substring(1).Replace(",",""));
string lookahead = String.Empty;
if (!afterDot[1].ToString().Equals(","))
{
lookahead = first(afterDot.Substring(1).Split(',')[0]);
if (lookahead.Equals(""))
{
lookahead = afterComma;
}
}
else
{
lookahead = afterComma;
}
foreach (var i in firstAfterDotProductions)
{
lookahead += '/' + first(i);
}
var result2 = lookahead.Replace("/", "").Distinct();
string result3 = string.Empty;
foreach (var i in result2)
{
result3 += "/" + i.ToString();
}
lookahead = result3.Substring(1);
foreach (var item in items)
{
var left = item.Value[0].ToString();
var right = item.Value.Split('>')[1];
g.Lista_noduri.Add(left + ">." + right + ',' + lookahead);
if (left.Equals(right[0].ToString()))
{
var el = left + ">" + right;
var poz = Grammer.IndexOf(Grammer.Where(elem => elem.Equals(el)).FirstOrDefault());
if (parcurs[poz] == false)
{
parcurs[poz] = true;
Create_I0(left + ">." + right + ',' + lookahead, g, 1, true);
}
}
else
{
var el = left + ">" + right;
var poz = Grammer.IndexOf(Grammer.Where(elem => elem.Equals(el)).FirstOrDefault());
if (parcurs[poz] == false)
{
parcurs[poz] = true;
Create_I0(left + ">." + right + ',' + lookahead, g, 0, true);
}
}
}
}
}
