!7

srecord ToParse(O text) {}
srecord StarPattern(O text) {}

cprint {
  transient new TransformersOnObjects too;
  switchable long maxSteps = 1000;

  start-thread {
    S ruleText = [[LineByUser("a * is something like *") => Assumption("* is a noun")]];
    too.add(ToParse(ruleText));
    
    // unpack ToParse
    too.addTransformer(func(ToParse x) { x.text });

    too.addTransformer(f<S, O> splitAtDoubleArrow_pair);
    too.addTransformer(f<S, O> parseFunctionCall);
    too.addTransformer(f<S, O> unquote);
    too.addTransformer(f<Pair, O> pairA);
    too.addTransformer(f<Pair, O> pairB);
    //too.addTransformer(f<S, Bool> isStarPattern);
    
    // Suggest enclosing a star pattern string with StarPattern()
    too.addTransformer(func(S s) {
      isStarPattern(s) ? StarPattern(s) : null
    });
    
    // Reintegrate replaced star patterns into rule text
    too.addTransformer(func(StarPattern s) {
      print("Found StarPattern: " + s);
      null;
    });
      
    stepAllWithStats(too, maxSteps);
    too.printWithTrails();
  }
}