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Re: Is there a save-outline-visibility excursion or so?
From: |
Thorsten Jolitz |
Subject: |
Re: Is there a save-outline-visibility excursion or so? |
Date: |
Fri, 24 May 2013 16:06:19 +0200 |
User-agent: |
Gnus/5.130002 (Ma Gnus v0.2) Emacs/24.3 (gnu/linux) |
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> A hidden-line-cookie is only written, if the headline is folded, and
>> deleted if it is expanded. This is done by
>> 'org-hlc-write-hidden-lines-cookies'. Thus to delete all cookies, I
>> temporarily expand all subtrees, call the function, and then go back to
>> the former visibility state and point position.
>
> It would seem like it would be a lot simpler to write a loop that simply
> erases your "cookies" without paying attention to the visibility state.
>
> "do and then undo" is always a high-risk way to do nothing, so if you
> can really do nothing instead, it's always a major reliability gain.
> Your use of an indirect buffer luckily saves you from having to "do and
> undo". But indirect buffers suck.
>
> BTW, rather than "insert" your cookies in the text (which has lots of
> undesirable side effects, such as being visible in the saved file), why
> not use overlays (in which case org-hlc-hide-hidden-lines-cookies would
> just be a single call to remove-overlays).
Thanks for the tips.
I found out that a similar library already existed (org-weights.el by
Francois Pinard) which is based of overlays. So I forked his code and
merged my code/ideas into it. Its still a bit buggy, but here are a few
examples of what this (extended) library can do now (I posted this
already on the Org-mode list). Don't bother about the numbers, they are
made up, since I cannot copy overlays:
1. Org-mode/subtree-weights:
,-----------------------------------------------
| * Header 1 * 2 + 1...
| ** Header 2a ** 1
|
| text text text text text
| text text text text text
|
| ** Header 2b ** 1
`-----------------------------------------------
2. Outshine Emacs Lisp/subtree-weights:
,--------------------------------------------------
| ;; * Header 1 * 2 + 1...
| ;; ** Header 2a ** 1
|
| text text text text text
| text text text text text
|
| ;; ** Header 2b ** 1
|
`--------------------------------------------------
3. Conventional Emacs-Lisp/hidden-lines-cookies
,--------------------------------
| ;;; Header 1 [#1]
| ;;;; Header 2a [#4]
|
| text text text text text
| text text text text text
|
| ;;;; Header 2b [#2]
|
`--------------------------------
4. Outshine PicoLisp/hidden-lines-cookies
,--------------------------------
| ## * Header 1 [#1]
| ## ** Header 2a [#4]
|
| text text text text text
| text text text text text
|
| ## ** Header 2b [#2]
|
`--------------------------------
The original repo is at:
,--------------------------------------
| https://github.com/pinard/org-weights
`--------------------------------------
you can find my fork with the extended version here:
,------------------------------------
| https://github.com/tj64/org-weights
`------------------------------------
--
cheers,
Thorsten