public Expressie(String p)
{
op = Operator.ONE;
terminals = p;
left = null;
right = null;
}
public Expressie()
{
op = Operator.ONE;
terminals = "";
left = null;
right = null;
}
public Expressie star()
{
Expressie result = new Expressie();
result.op = Operator.STAR;
result.left = this;
return(result);
}
public Expressie plus()
{
Expressie result = new Expressie();
result.op = Operator.PLUS;
result.left = this;
return(result);
}
public Expressie dot(Expressie e2)
{
Expressie result = new Expressie();
result.op = Operator.DOT;
result.left = this;
result.right = e2;
return(result);
}
public bool Equals(Expressie other)
{
if (other == null)
{
return(false);
}
else if (this.ToString() == other.ToString() && this.terminals == other.terminals && this.op == other.op && this.left == other.left && this.right == other.right)
{
return(true);
}
else
{
return(false);
}
}
public override string ToString()
{
string expressie = "";
Expressie mostleft = left;
if (mostleft != null)
{
while (mostleft != null)
{
mostleft = left.left;
}
while (mostleft.right != null)
{
expressie += mostleft.terminals;
mostleft = mostleft.right;
}
}
else
{
expressie = terminals;
}
return(expressie);
}
