Re: [O] new exporter

[Nicolas Goaziou]

Hello,

Achim Gratz <address@hidden> writes:

> After some consideration, I think this is what the macro should look
> like:
>
> (defmacro org-export-with-current-buffer-copy (&rest body)
>   "Apply BODY in a copy of the current buffer.
>
> The copy preserves local variables and visibility of the original
> buffer.
>
> Point is at buffer's beginning when BODY is applied."
>   `(org-with-gensyms (original-buffer offset buffer-string overlays)
>      (let ((original-buffer (current-buffer))
>          (offset (1- (point-min)))
>          (buffer-string (buffer-string))
>          (overlays (mapcar
>                      'copy-overlay (overlays-in (point-min) (point-max)))))
>        (with-temp-buffer
>        (let ((buffer-invisibility-spec nil))
>          (org-clone-local-variables
>           original-buffer
>           
> "^\\(org-\\|orgtbl-\\|major-mode$\\|outline-\\(regexp\\|level\\)$\\)")
>          (insert buffer-string)
>          (mapc (lambda (ov)
>                  (move-overlay
>                   ov
>                   (- (overlay-start ov) offset)
>                   (- (overlay-end ov) offset)
>                   (current-buffer)))
>                overlays)
>          (goto-char (point-min))
>          (progn ,@body))))))
> (def-edebug-spec org-export-with-current-buffer-copy (body))

Not exactly. With this version, symbols generated with gensym are never
used, and the macro isn't hygienic anymore.

I still think your first take about this macro was the good one. I've
pushed something very similar. Could you verify if it is correct on the
compiling side?

> The org-export-define-derived-backend macro seems similarly starstruck,
> but I really don't know what you think the expansion should be.

Something along the lines of:

#+begin_src emacs-lisp
(progn
  (defconst org-e-beamer-options-alist '(...)
    "Alist between filters keywords and back-end specific filters.
See `org-export-filters-alist' for more information.")
  (defvar org-e-beamer-translate-alist '(...)
    "Alist between element or object types and translators."))
#+end_src

> One of your recent changes introduced four test fail when org-element is
> compiled.  I haven't yet looked why that would be, the four tests are:
>
>    FAILED  test-org-export/table-cell-alignment
>    FAILED  test-org-export/table-cell-borders
>    FAILED  test-org-export/table-row-ends-header-p
>    FAILED  test-org-export/table-row-starts-header-p

Could you paste the error reported by ERT? I can't think of any recent
change in this area.

> The new org-e-beamer.el doesn't compile at all:
> org-e-beamer.el:258:1:Error: Wrong type argument: listp,
> org-e-beamer-export-block

It should be fixed.

Thank you.


Regards,

-- 
Nicolas Goaziou