public static boolean h16(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "h16")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _NONE_, H_16, "<h 16>");
    r = hexdig(b, l + 1);
    r = r && h16_1(b, l + 1);
    r = r && h16_2(b, l + 1);
    r = r && h16_3(b, l + 1);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean h16(PsiBuilder b, int l)