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Re: [O] Opening an Org file slowed down

From: Michael Brand
Subject: Re: [O] Opening an Org file slowed down
Date: Sun, 24 Nov 2013 14:49:50 +0100

Hi Nicolas

On Sat, Nov 23, 2013 at 11:52 AM, Nicolas Goaziou <address@hidden> wrote:
> I pushed a fix that should halve the time,

I see this effect, thank you.

> but it will still be slow.
> `org-element-at-point' is linear by the number of elements before point
> in the current section. Therefore, parsing /all/ elements in a section
> will be quadratic by the number of elements in the section.

To avoid the quadratic scaling in my use case of "fileconversion" I
think fileconversion should be improved to insert the leading stars
_before_ Org mode has finished turning on. In the past org-mode-hook
was simply used but it seems to have become the wrong choice for my

First, I have an understanding question:

I tried to find where org-mode-hook is called within the function
org-mode but could not see something similar to the expected
"(run-hooks 'org-mode-hook)". So I added 'backtrace to the
org-mode-hook but don't understand it either:

      run-hooks(change-major-mode-after-body-hook text-mode-hook
outline-mode-hook org-mode-hook)
      apply(run-hooks (change-major-mode-after-body-hook
text-mode-hook outline-mode-hook org-mode-hook))

I see the expected "run-mode-hooks(org-mode-hook)" in this backtrace
but where is the corresponding form in the function org-mode?

Second, I guess it is not necessary to implement something like
org-mode-early-hook but I could not find yet an existing hook. Which
hook would you recommend for inserting the leading stars?


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