Upon further testing, the third and fourth elements of the function should
instead be wrapped in a single set of parentheses. There should only be
three elements in the list.

On Tue, Aug 3, 2021 at 12:36 AM Zachary Kanfer <zkanfer@gmail.com> wrote:

> Ox.el contains the function org-export-define-backend. One of its
> keyword arguments is :menu-entry. The examples given include
> (https://code.orgmode.org/bzg/org-mode/src/master/lisp/ox.el#L1214)
>
>     '(?l "Export to LaTeX"
>          (?p "As PDF file" org-latex-export-to-pdf)
>          (?o "As PDF file and open"
>              (lambda (a s v b)
>                (if a (org-latex-export-to-pdf t s v b)
>                  (org-open-file
>                   (org-latex-export-to-pdf nil s v b))))))
>
> This is invalid for two reasons:
>
> 1. The ?p and ?o elements should be wrapped in an extra layer of
> parentheses. For example, the ?p element should be ((?p "As PDF file"
> org-latex-export-to-pdf)).
> 2. There is an extra parenthesis at the end of the block.
>
> I cannot submit a patch, as my employer currently will not sign the
> copyright assignment. I hope someone else picks this up and fixes it.
>
> ------------------------------------------------------------------------
>
>
> Emacs  : GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
> 3.24.20, cairo version 1.16.0)
>  of 2021-07-09
> Package: Org mode version 9.4.4 (release_9.4.4 @
> /usr/local/share/emacs/28.0.50/lisp/org/)
>