Hello, Jambunathan K <kjambunat...@gmail.com> writes:
> Nicolas Goaziou <n.goaz...@gmail.com> writes: > >> Jambunathan K <kjambunat...@gmail.com> writes: >> >>> Nicolas Goaziou <n.goaz...@gmail.com> writes: >>> >>>> #+begin_src emacs-lisp >>>> (defun my-options-change-fun (tree backend info) >>>> (when (org-export-derived-backend-p backend 'e-beamer) >>>> (plist-put info :with-author nil)) >>>> ;; Don't forget to return tree. >>>> tree) >>> >>> CAVEAT: plist-put can return a different list, at times. >>> >>> I don't know enough about implementation of `plist-put' to ascertain >>> when it would return a new list. >> >> Since the OP wants to modify the values of _existing properties_ I'm >> quite sure the change will happen in place. > > Look at example in Elisp manual. New members seem to get appended. > > List being destructive is explainable if new members were to be added to > the head. Since this is not the case, I am curious what the > implementation could be ... I have added a filter for export options. The OP may want to use it instead. I guess it will be cleaner that way. Besides, the previous export framework had one too. Regards, -- Nicolas Goaziou
