using uCalcSoftware;

var uc = new uCalc();
var t = uc.NewTransformer();
t.FromTo("a", "XY");

t.Text = "a b c a b c";
Console.WriteLine(t.Transform().Text); // Text that was set before trasnform
Console.WriteLine(t.Transform("c b a c b a").Text); // text passed to Transform()
Console.WriteLine(t.Transform("a, b, a, b")); // Implicit; Text property can be omitted