From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Subject: Re: How to "initiate" Org mode in a buffer
Date: Fri, 10 Oct 2014 09:57:16 +0200
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References: <87k348karq.fsf@wmi.amu.edu.pl>
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In-Reply-To: <87k348karq.fsf@wmi.amu.edu.pl> (Marcin Borkowski's message of
	"Fri, 10 Oct 2014 02:51:05 +0200")
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To: Marcin Borkowski <mbork@wmi.amu.edu.pl>
Cc: Org Mode Mailing List <emacs-orgmode@gnu.org>

Hello,

Marcin Borkowski <mbork@wmi.amu.edu.pl> writes:

> I'm writing a function which does some (serious) modifications on an Org
> file.  I want it to save the results in some new file, so I'm (most
> probably) going to create a new buffer, execute (org-mode) there, copy
> the contents of the old one (insert-buffer-substring?) and then do my
> stuff.

You probably need to copy the contents before calling `org-mode' so it
can properly initialize buffer local variables (e.g., #+TODO keywords).

> However, "my stuff" depends on the (org) structure.  Is there something
> I should call /before/ I do (org-element-parse-buffer)?  I want to do
> something like
>
>     (org-element-map (org-element-parse-buffer) '(headline)
>       #'my-stuff)

  (org-element-map (org-element-parse-buffer 'headline) 'headline
   ...)

will be much faster.

However, a better option may be to use `org-map-entries', which is more
robust wrt buffer modifications.

OTOH, `org-element-parse-buffer' should be considered if #'my-stuff
operates on the AST. Then you would insert

  (org-element-interpret-data ast)

in the new buffer.

> Is that going to work reliably (on a newly-created buffer)?

`org-element-parse-buffer' needs Org mode to be initialized.


Regards,

-- 
Nicolas Goaziou