Re: Org-cite: Replace basic follow-processor with transient menu?

["Tor-björn Claesson" <tclaesson@gmail.com>]

This is a great learning experience, thank you Ihor and Jonas for the
friendly feedback!

(defcustom org-cite-basic-follow-actions
  '[["Open"
     ("b" "bibliography entry" org-cite-basic-goto (list (transient-scope) 0))]    
    ["Copy"
     ("d" "DOI" org-cite-basic-follow.copy-doi)]
    ["Browse"
     ("u" "url" org-cite-basic-follow.browse-url)]]
  "Hepp"
  :group 'org-cite
  :type 'sexp)

The bibliography entry demonstrates using any function (a bit ugly since
org-cite-basic-goto insists on the prefix argument).

(transient-define-prefix org-cite-basic-follow (citation &optional prefix)
  [:class transient-columns
   :setup-children org-cite-basic-follow--setup
   :pad-keys t]
  (interactive)
  (if org-cite-basic-follow-ask
      (transient-setup 'org-cite-basic-follow nil nil
                       :scope (list citation))
    (org-cite-basic-goto citation prefix)))

Here I removed activating the transient menu if a prefix argument is
present. If org-cite-basic-follow-ask is nil (the default) and I want
to call org-cite-basic-goto with a prefix argument, this would cause the
transient menu to activate, which seems wrong.

(defun org-cite-basic-follow--setup (_)
  (transient-parse-suffixes
   'org-cite-basic-follow
   (cl-map 'vector (lambda (group)
          (cl-map 'vector (lambda (entry)
                    (pcase entry
                      ((and (pred stringp) label)
                       label)
                      (`(,key ,desc ,fn ,transform)
                       (list key desc `(lambda ()
                                         (interactive)
                                         (apply ',fn ,transform))))
                      (`(,key ,desc ,suffix)
                       (list key desc suffix))))
                  group))
        org-cite-basic-follow-actions)))

Prefixes of :class transient-columns expect a vector of vectors of a string and
lists, so we need to use a map that produces vectors.

This works. Do the code look OK to you? I'll prepare a patch if that is the
case.

Cheers,
Tor-björn