private SymPattern BuildSymSequences(string seq)
{
bool isEven = (seq.Length % 2 == 0);
int mid = seq.Length / 2;
int index = 0;
bool go = true;
while (go)
{
string lhs = seq.Substring(0, mid - index);
string rhs = isEven ? seq.Substring(mid + index) : seq.Substring(mid + index + 1);
string middle = isEven ? seq.Substring(mid - index, 2 * index) : seq.Substring(mid - index, (2 * index) + 1);
//Debug.WriteLine(lhs.Length + " " + middle.Length + " " + rhs.Length);
//Debug.WriteLine(lhs + "-" + middle + "-" + rhs);
if (lhs.Length == 0 || rhs.Length == 0)
{
return(null);
}
bool SymMatch = (lhs == rhs);
bool MirrorSymMatch = (lhs == ReverseString(rhs));
if (SymMatch || MirrorSymMatch)
{
SymPattern SP = new SymPattern {
SymMatch = SymMatch, MirrorSymMatch = MirrorSymMatch, Length = middle.Length, LHS = lhs, RHS = rhs, Middle = middle
};
return(SP);
}
if (index >= mid)
{
go = false;
}
if (index > 3)
{
go = false;
}
index++;
}
return(null);
}
public void Go3()
{
List <Rule> Rules = FindCandidates3();
//List<Rule> Rules = new List<Rule>() {};
StreamWriter sw = new StreamWriter("SymPatterns.txt", false, Encoding.UTF8);
sw.WriteLine("Sym,Mirror Sym,Identifier,Name,Chandam Length,Chandam Name,Raw Pattern,Bridge Length,Symmetric Pattern,Symmetric Pattern2");
foreach (Rule R in Rules)
{
if (R.Sequence == "")
{
Console.WriteLine(R.Identifier + " - Skipping");
continue;
}
//if (R.CharLength < 7)
//{
// continue;
//}
SymPattern SP = BuildSymSequences(R.Sequence.Replace("-", "").Replace("|", "I"));
if (SP != null)
{
Console.WriteLine(R.Identifier + " - Symmetric Pattern Found.");
string l = Mark(SP.LHS, 3);
string m = SP.Middle;
string r = Mark(SP.RHS, 3);
string seq = l + (m == "" ? "-" : "-(" + m + ")-") + r;
string seq2 = SP.LHS + (m == "" ? "-" : "-(" + m + ")-") + SP.RHS;
sw.WriteLine(SP.SymMatch + "," + SP.MirrorSymMatch + "," + R.Identifier + "," + R.ShortName + "," + R.CharLength + "," + R.ChandamName + "," + R.Sequence.Replace("|", "I") + "," + SP.Length + "," + seq + "," + seq2);
}
else
{
Console.WriteLine(R.Identifier + " -No Symmetric Pattern Found.");
}
}
sw.Close();
}