query <xray-query-statement> end

<xray-query-statement> :==

  domain=reciprocal|real
  --{Domain to query. Default=none}
  name=<xray-object>
  --{Name to query. Default=none}
 
  --{The query will create the following symbols:
       $object_exist (<logical>) - true if object exists.
       $object_type (<xray-type>) - real, complex, or integer.
       $object_used (<logical>) - true if object is # 0.
       $object_group (<integer>) - reciprocal space object group id.
       $object_gtype (<xray-group-type>) - reciprocal space object group type.
       $object_gord (<integer>) - reciprocal space object group order.
     The last two are only created for existing reciprocal space objects.}