Class Pxp_reader.lookup_id


class lookup_id : (Pxp_core_types.ext_id * resolver) list -> resolver
The general catalog class. The catalog argument specifies pairs (xid,r) mapping external IDs xid to subresolvers r. The subresolver is invoked if an entity with the corresponding xid is to be opened.

Note: SYSTEM IDs are simply compared literally, without making relative IDs absolute. See norm_system_id below for this function.