code: func (qp *QueryParser) jj_2_1(xla int) (ok bool) {
  	qp.jj_la = xla
  	qp.jj_lastpos = qp.token
  	qp.jj_scanpos = qp.token
  	defer func() {
  		// Disable following recover() to deal with dev panic
  		if err := recover(); err == lookAheadSuccess {
  			ok = true
  		}
  		qp.jj_save(0, xla)
  	}()
  	return !qp.jj_3_1()
  }
docs: // L473