A built-in stream that starts out with one item for each public identifier built into OmniMark. These values are used by OmniMark's built-in entity manager when an entity is not resolved using the
#library shelf. (This allows you to avoid having to write an external-text-entity rule.)
An OmniMark program can add to, delete, or modify these values, as needed, with the following restrictions:
The default "current-item" is the last item on the shelf, as in programmer-defined shelves.