See the variables org-export-before-processing-hook and
org-export-before-parsing-hook.
You can put something like this in a noexport tagged build heading in
your document. Here I run head on the org-file to just get the first
three lines. you can replace that with your external filter.:
#+BEGIN_SRC emacs-lisp
(let ((org-export-before-parsing-hook '((lambda (backend)
"lightly tested"
(let ((new-doc
(shell-command-to-string (format "head -n 3 \"%s\"" (buffer-file-name)))))
(erase-buffer)
(insert new-doc))))))
(org-open-file (org-html-export-to-html)))
#+END_SRC
Josh <jnf...@grauman.com> writes:
> Thanks! This is very helpful.
>
> I have a related question. How can I run an external program right before
> Export
> that takes as input the current buffer and prints out to stdout an updated
> version of the org file that then is exported? Basically I want to pipe the
> org
> file through a filter that is an external program before it is exported.
>
> Thanks in advance!
>
> Josh
>
>> On Sunday, 10 Mar 2019 at 15:37, Josh wrote:
>>> Hi,
>>>
>>> I am new to emacs and orgmode. I spent the last couple days reading most
>>> of the docs before diving in, but I didn't see anywhere how I could have a
>>> macro that instead of replacing the macro with lisp code, calls an
>>> external program instead.
>>>
>>> Something like:
>>>
>>> #+MACRO: func call /home/josh/mybinary $1
>>
>> You could maybe do something along the lines of
>>
>> #+macro: func (eval (shell-command (concat "/home/josh/mybinary " "$1")))
>>
>> (untested).
>>
>> --
>> Eric S Fraga via Emacs 27.0.50, Org release_9.2.2-249-g51444a
>>
--
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu
