From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Brand <michael.ch.brand@gmail.com>
Subject: Re: [WORG] How to ediff folded Org files?
Date: Thu, 19 Dec 2013 20:00:19 +0100
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To: Org Mode <emacs-orgmode@gnu.org>

Hi all

An update for this thread from April:

On Sun, Apr 7, 2013 at 12:24 AM, Michael Brand
<michael.ch.brand@gmail.com> wrote:
> #+BEGIN_SRC emacs-lisp
>   (add-hook 'ediff-prepare-buffer-hook 'f-ediff-prepare-buffer-hook-setup)
>   (defun f-ediff-prepare-buffer-hook-setup ()
>     ;; specific modes
>     (cond ((eq major-mode 'org-mode)
>            (f-org-vis-mod-maximum))
>           ;; room for more modes
>           )
>     ;; all modes
>     (setq truncate-lines nil))
>   (defun f-org-vis-mod-maximum ()
[...]
> #+END_SRC

To get the "=>" in narrowed columns of aligned tables out of the way I
changed f-org-vis-mod-maximum in the meantime:

#+BEGIN_SRC emacs-lisp
  (defun f-org-vis-mod-maximum ()
    "Org visibility: Modify settings to show maximum.
  Useful for e. g. `ediff-prepare-buffer-hook' in Org buffer."
    (interactive)
    (cond
     ((eq major-mode 'org-mode)
      (setq truncate-lines nil)
      (visible-mode 1)
      ;; Get the "=>" in narrowed columns of aligned tables out of the way.
      ;; - It is important to also remove the text property "invisible" for
      ;;   the case that the Visible mode is turned off after the removed "=>"
      ;;   does not indicate invisible content anymore.
      ;; - Negative site effect to put up with: When the Visible mode is
      ;;   turned off again it will show some parts that were invisible before
      (with-silent-modifications
        (remove-text-properties
         (point-min) (point-max)
         (list 'invisible 'dummy-prop-or-val  ; e. g. truncated table field
               'display   'dummy-prop-or-val))))  ; e. g. the "=>" in a table
     (t
      (message "ERR: not in Org mode")
      (ding))))
#+END_SRC

Michael