Variable: file-name-at-point-functions
file-name-at-point-functions is a customizable variable defined in
files.el.gz.
Value
(ffap-guess-file-name-at-point)
Documentation
List of functions to try in sequence to get a file name at point.
Each function should return either nil or a file name found at the location of point in the current buffer.
Probably introduced at or before Emacs version 26.1.
Source Code
;; Defined in /usr/src/emacs/lisp/files.el.gz
;; FIXME: also add a hook for `(thing-at-point 'filename)'
(defcustom file-name-at-point-functions '(ffap-guess-file-name-at-point)
"List of functions to try in sequence to get a file name at point.
Each function should return either nil or a file name found at the
location of point in the current buffer."
:type '(hook :options (ffap-guess-file-name-at-point))
:group 'find-file)