!7

p-exp {
  S pat = "how many $faces are on a $rubiks_cube";
  S s = "how many segments are on a {face of a rubik's cube}";

  new SS matches;
  print(new NLStringMatcher_dollarVars_underscores_dollarDollar().match(pat, s, matches));
  printStruct(matches);
  printStruct(matchDollarVarsIC_plusBrackets(pat, s));
}