+ (notmuch-mua-pop-to-buffer (message-buffer-name "mail" to)
+ (or switch-function (notmuch-mua-get-switch-function)))
+ (let ((headers
+ (append
+ ;; The following is copied from `message-mail'
+ `((To . ,(or to "")) (Subject . ,(or subject "")))
+ ;; C-h f compose-mail says that headers should be specified as
+ ;; (string . value); however all the rest of message expects
+ ;; headers to be symbols, not strings (eg message-header-format-alist).
+ ;; http://lists.gnu.org/archive/html/emacs-devel/2011-01/msg00337.html
+ ;; We need to convert any string input, eg from rmail-start-mail.
+ (dolist (h other-headers other-headers)
+ (if (stringp (car h)) (setcar h (intern (capitalize (car h))))))))
+ (args (list yank-action send-actions)))
+ ;; message-setup-1 in Emacs 23 does not accept return-action
+ ;; argument. Pass it only if it is supplied by the caller. This
+ ;; will never be the case when we're called by `compose-mail' in
+ ;; Emacs 23.
+ (when return-action (nconc args '(return-action)))
+ (apply 'message-setup-1 headers args))