using uCalcSoftware;

var uc = new uCalc();
var t = uc.NewTransformer();
// Matches "First Last" OR "First Middle Last"
// Constraint Note: We use {name:1} to ensure each variable captures exactly one token.
// Replacement Note: We use {middle: {middle}} instead of just {middle} to prepend
// a space only if the middle name exists.
t.FromTo("Name: {first:1} [{middle:1}] {last:1}",
"User: {last}, {first}{middle: {middle}}");

Console.WriteLine(t.Transform("Name: John Doe"));
Console.WriteLine(t.Transform("Name: John Quincy Adams"));