#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

int main() {
   uCalc uc;
   auto t = uc.NewTransformer();
   t.DefaultRuleSet().RewindOnChange(true);
   t.FromTo("AddUp({x})", "{x}");
   t.FromTo("AddUp({x}, {y})", "({x} + AddUp({y}))");

   cout << t.TraceTransform("AddUp(1, 2, 3, 4)", "", "$'Step {Index}: {x}\n'") << endl;

   // 0 is the default IndexBase.  Now we use 1 instead.
   // So it will now start with "Step: 1" instead of "Step: 0"
   cout << "--- Now with IndexBase = 1 ---" << endl;
   cout << t.TraceTransform("AddUp(1, 2, 3, 4)", "", "$'Step {Index} of {Count}: {x}\n'").IndexBase(1) << endl;
}