public static boolean IPv4address(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "IPv4address")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _NONE_, I_PV_4_ADDRESS, "<i pv 4 address>");
    r = dec_octet(b, l + 1);
    r = r && consumeToken(b, DOT);
    r = r && dec_octet(b, l + 1);
    r = r && consumeToken(b, DOT);
    r = r && dec_octet(b, l + 1);
    r = r && consumeToken(b, DOT);
    r = r && dec_octet(b, l + 1);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean IPv4address(PsiBuilder b, int l)