def p_bgp_2(p): """ bgp : FILTER LPAR expression RPAR """ p[0] = Filter(p[3])
def p_bgp_3(p): """ bgp : FILTER express_rel """ p[0] = Filter(p[2])
def p_bgp_service_3(p): """ bgp_service : FILTER express_rel """ p[0] = Filter(p[2])