private void CalculateButt_Click(object sender, EventArgs e)
{
try
{
if (UnionRad.Checked)
{
if (!InfixBox.Text.Equals(""))
{
String infix = InfixBox.Text;
String posfix = Postfix.ConvertToPostFix(infix);
ArraySet res = UnionAndIntersResult(posfix);
ResultBox.Text = res.toString();
}
}
if (PowerSetRad.Checked)
{
ArraySet res = UnionAndIntersResult(Postfix.ConvertToPostFix(InfixBox.Text));
ResultBox.Text = ArraySet.getPowerSet(res);
}
if (SubSetRad.Checked)
{
String expression = InfixBox.Text;
String temp = "";
ArraySet temp1 = null;
ArraySet temp2;
foreach (char i in expression.ToCharArray())
{
if (i == 'c')
{
temp1 = UnionAndIntersResult(Postfix.ConvertToPostFix(temp));
temp = "";
}
else
{
temp += i;
}
}
temp2 = UnionAndIntersResult(Postfix.ConvertToPostFix(temp));
ResultBox.Text = Convert.ToString(ArraySet.isSubsetOf(temp1, temp2));
}
if (CartesianRad.Checked)
{
String expression = InfixBox.Text;
expression = expression.Replace('(', ' ');
expression = expression.Replace(')', ' ');
expression = expression.Replace('x', ' ');
int count = 0;
foreach (char i in expression.ToArray())
{
if (getIndexFromChar(i) != -1)
{
count++;
}
}
ArraySet[] tempSetList = new ArraySet[count];
count = 0;
foreach (char i in expression.ToArray())
{
if (getIndexFromChar(i) != -1)
{
tempSetList[count] = setList[getIndexFromChar(i)];
if (tempSetList[count].size() == 0)
{
ResultBox.Text = "Error : Cartesian product with an empty set";
return;
}
count++;
}
}
ResultBox.Text = ArraySet.Cartesian(tempSetList);
}
}catch (Exception ex)
{
MessageBox.Show("Error : Incorrect Input" + " : " + ex.Message);
}
}