// class Matches is added by #752
 
  static boolean match3(S pat, S s) {
    return match3(pat, s, null);
  }
  
  static boolean match3(S pat, S s, Matches matches) {
    if (s == null) return false;
    ret match3(pat, parse3_cached(s), matches);
  }
    
  static boolean match3(S pat, L<S> toks, Matches matches) {
    L<S> tokpat = parse3(pat);
    ret match3(tokpat,toks,matches);
  }

  static boolean match3(L<S> tokpat, L<S> toks, Matches matches) {

    S[] m = match2(tokpat, toks);
    //print(structure(tokpat) + " on " + structure(toks) + " => " + structure(m));
    if (m == null)
      return false;
    else {
      if (matches != null) matches.m = m;
      return true;
    }
  }