Re: [O] [New Exporter] deriving from derived backends?

[Nicolas Goaziou]

Hello,

Rick Frankel <address@hidden> writes:

> I am trying to derive a backend from another derived backend (i want
> to override certain entries in the options-alist), but it does not
> seem to work. The menu entries are created, but the in the
> second-level derived backend are not being picked up.
>
> Should this work? Or do i need a different approach?
>
> here's abbreviated code:
>
> (org-export-define-derived-backend s5 html
>   :menu-entry
>   (?s "Export to S5 HTML Presentation"
>       ((?H "To temporary buffer" org-s5-export-as-html)
>        (?h "To file" org-s5-export-to-html)
>        (?o "To file and open"
>          (lambda (a s v b)
>            (if a (org-s5-export-to-html t s v b)
>              (org-open-file (org-s5-export-to-html nil s v b)))))))
>   :options-alist
>   [...]
>
>
> ;; this is the full exporter definition
> (org-export-define-derived-backend s5-xoxo s5
>   :menu-entry
>   (?s "Export to S5 HTML Presentation"
>       ((?X "To temporary buffer (XOXO)" org-s5-export-as-html)
>        (?x "To file (XOXO)" org-s5-export-to-html)
>        (?O "To file and open (XOXO)"
>          (lambda (a s v b)
>            (if a (org-s5-export-to-html t s v b)
>              (org-open-file (org-s5-export-to-html nil s v b)))))))
>   :options-alist
>   ((:html-container nil nil "li") ;; this is defined in the html backend
>   ;; this is new to this backend
>    (:s5-xoxo-root "S5_XOXO_ROOT" nil org-s5-xoxo-root-element)))
>
> If i use e.g., s-X or s-x in the exporter menu,
> in exporter functions, :html-container == "div" (which is set in the
> html exporter), and :s5-xoxo-root is nil.

You are using the same key: ?s for both back-ends in the menu. You need
to use different keys, or install one of them as a sub-menu of the
previous one (notice the "1" instead of the description):

 (org-export-define-derived-backend s5-xoxo s5
   :menu-entry
   (?s 1
       ((?X "To temporary buffer (XOXO)" org-s5-export-as-html)
        (?x "To file (XOXO)" org-s5-export-to-html)
        (?O "To file and open (XOXO)"
           (lambda (a s v b)
             (if a (org-s5-export-to-html t s v b)
               (org-open-file (org-s5-export-to-html nil s v b)))))))
   :options-alist
   ((:html-container nil nil "li") ;; this is defined in the html backend
   ;; this is new to this backend
    (:s5-xoxo-root "S5_XOXO_ROOT" nil org-s5-xoxo-root-element)))


Regards,

-- 
Nicolas Goaziou