public Branch(char c, Branch lc, Branch rc)
{
if (lc == null || rc == null) {
Console.WriteLine("WAT");
return;
}
this.setData(c);
setLeft(lc);
setRight(rc);
lc.setParent(this);
rc.setParent(this);
}
/// <summary>
/// Building a tree.
/// </summary>
public void buildTree()
{
if (postfix.Length < 1) { return; }
Branch current = null;
Stack stack = new Stack(postfix.Length);
char ch;
bool waitingForOperator = false;
for (int i = 0; i < postfix.Length; i++) {
ch = postfix[i];
if (ch <= '9' && ch >= '0') {
stack.push(ch);
} else if (ch == '+' || ch == '-' || ch == '/' || ch == '*' || ch == '^') {
if (current == null) {
//Construct the tree with ducktape, but im all out of tape.
char num2 = stack.pop();
char num1 = stack.pop();
current = new Branch(ch, new Branch(num1), new Branch(num2));
} else {
Branch previous = current;
current = new Branch(ch);
if (waitingForOperator == true) {
//yea we're basicly waiting for an operator...
current.setRight(previous);
current.setLeft(new Branch(stack.pop()));
waitingForOperator = false;// Or maybe not?
} else {
//this guy is so cool, he kicks ass without an operator...
current.setLeft(previous);
current.setRight(new Branch(stack.pop()));
}
}
if (stack.size() > 0) {
//yes we're waiting for an operator.
waitingForOperator = true;
}
} else {
Console.WriteLine("Error char('" + ch + "') So wtf am I supposed to do with this?");
}
}
trunk = current;//set dominant branch to root.
}
public void setParent(Branch p)
{
this.parent = p;
}
public void setLeft(Branch lc)
{
this.leftChild = lc;
}
