org-footnote-at-definition-p
org-footnote-at-definition-p is a compiled Lisp function in `org-footnote.el
'.
(org-footnote-at-definition-p)
Is point within a footnote definition?
This matches only pure definitions like [1] or [fn:name] at the
beginning of a line. It does not match references like
[fn:name:definition], where the footnote text is included and
defined locally.
The return value will be nil if not at a footnote definition, and
a list with label, start, end and definition of the footnote
otherwise.