From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Berry, Charles" <ccberry@ucsd.edu>
Subject: Re: :EXPORT_FILE_NAME: containing a date-stamp
Date: Wed, 7 Feb 2018 18:06:20 +0000
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To: Kaushal Modi <kaushal.modi@gmail.com>
Cc: Karl Voit <news1142@karl-voit.at>, "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>



> On Feb 7, 2018, at 9:37 AM, Kaushal Modi <kaushal.modi@gmail.com> wrote:
>=20
> On Wed, Feb 7, 2018 at 12:22 PM Berry, Charles <ccberry@ucsd.edu> wrote:
> Use an `eval' macro.
>=20
> In a more recent version than you use, this works:
>=20
> * abc
>   :PROPERTIES:
>   :EXPORT_TITLE: {{{etitle(my title)}}}
>   :END:
>=20
> #+macro: etitle (eval (concat (format-time-string "%Y-%m-%d") " " $1))
>=20
> That works for EXPORT_TITLE!
>=20
> So I tried for EXPORT_FILE_NAME, but it doesn't work there, because org-e=
xport-output-file-name should be getting called internally *before* the mac=
ro expansion is done.

I missed that.=20

Further, `org-export-file-name' gets called before `org-export-as' so there=
 is no hope of using export hooks or filters or other gambits like that.

I don't see a clean way to do date stamp the file name without writing your=
 own export-to-file function that handles date-stamping the file arg sent t=
o `org-export-to-file' or replacing/advicing `org-export-file-name' to do t=
hat.

Chuck=