// [Lhs * Rhs] / number
public override ASTNode TryDivide(ASTNode number)
{
if (Lhs.IsNumeric)
{
// [Lhs * Rhs] / number --> [Lhs / number] * Rhs
ASTNode quotient = new ASTQuotient(Lhs, number);
ASTNode normalized = Rhs.TryMultiply(quotient);
return((normalized != null) ? normalized : new ASTProduct(quotient, Rhs));
}
if (Rhs.IsNumeric)
{
// [Lhs * Rhs] / number --> Lhs * [Rhs / number]
ASTNode quotient = new ASTQuotient(Rhs, number);
ASTNode normalized = Lhs.TryMultiply(quotient);
return((normalized != null) ? normalized : new ASTProduct(Lhs, quotient));
}
return(null);
}
// [Lhs * Rhs] * number
public override ASTNode TryMultiply(ASTNode number)
{
if (Lhs.IsNumeric)
{
// [Lhs * Rhs] * number --> [Lhs * number] * Rhs
ASTNode product = new ASTProduct(Lhs, number);
ASTNode normalized = Rhs.TryMultiply(product);
return((normalized != null) ? normalized : new ASTProduct(product, Rhs));
}
if (Rhs.IsNumeric)
{
// [Lhs * Rhs] * number --> Lhs * [Rhs * number]
ASTNode product = new ASTProduct(Rhs, number);
ASTNode normalized = Lhs.TryMultiply(product);
return((normalized != null) ? normalized : new ASTProduct(Lhs, product));
}
return(null);
}
public override ASTNode TryNormalize()
{
return(Lhs.IsNumeric ? Rhs.TryMultiply(Lhs) : (Rhs.IsNumeric ? Lhs.TryMultiply(Rhs) : null));
}