diary-include-files

diary-include-files is a compiled Lisp function in `diary-lib.el'.

(diary-include-files &optional MARK)

Process diary entries from included diary files.
By default, lists included entries, but if optional argument MARK is non-nil
marks entries instead.
For example, this enables you to share common diary files.
Specify include files using lines matching `diary-include-string', e.g.
#include "filename"
This is recursive; that is, included files may include other files.