public void ParseTree( TreeNodeCollection n , Expression ex )
{
foreach (Expression e in ex.Members)
{
TreeNode t = n.Add(FormName(e));
ParseTree ( t.Nodes, e );
}
}
public string FormName(Expression e)
{
if ((e as CompoundExpression) != null)
return "Составное выражение " + e.calculate();
if ((e as BinaryOperation) != null)
{
if ((((BinaryOperation)e) as Addition) != null)
return "Сложение " + e.calculate();
if ((((BinaryOperation)e) as Substract) != null)
return "Вычитание " + e.calculate();
if ((((BinaryOperation)e) as Multiplication) != null)
return "Умножение " + e.calculate();
if ((((BinaryOperation)e) as Division) != null)
return "Деление " + e.calculate();
}
if ((e as Number) != null)
{
return "Число " + ((Number)e).calculate();
}
else
return "Недопустимое значение!";
}
public Substract(Expression exp1,Expression exp2)
: base(exp1, exp2)
{
}
public BinaryOperation(Expression exp1, Expression exp2)
{
_exp1 = exp1;
_exp2 = exp2;
}
public Multiplication(Expression exp1,Expression exp2)
: base(exp1, exp2)
{
}
public Addition(Expression exp1,Expression exp2)
: base(exp1, exp2)
{
}
public Division(Expression exp1,Expression exp2)
: base(exp1, exp2)
{
}
public CompoundExpression(Expression exp)
{
_exp = exp;
}
