Variable: diary-file-name-prefix-function
diary-file-name-prefix-function is a customizable variable defined in
diary-lib.el.gz.
Value
identity
Documentation
The function that will take a diary file name and return the desired prefix.
Source Code
;; Defined in /usr/src/emacs/lisp/calendar/diary-lib.el.gz
(defcustom diary-file-name-prefix-function #'identity
"The function that will take a diary file name and return the desired prefix."
:type 'function
:group 'diary)