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From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
To: "Gürtler, Martin" <martin.guertler@htwk-leipzig.de>
Cc: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>
Subject: Re: modify frame title in beamer export
Date: Sun, 05 Apr 2020 14:36:12 +0200	[thread overview]
Message-ID: <87o8s6az43.fsf@nicolasgoaziou.fr> (raw)
In-Reply-To: <9c314626-12bf-48f1-b74f-659472b32df6@ITSZ-EXCH-MBX12.htwk-leipzig.de> (=?utf-8?Q?=22G=C3=BCrtler=2C?= Martin"'s message of "Sun, 5 Apr 2020 09:28:56 +0000")


"Gürtler, Martin" <martin.guertler@htwk-leipzig.de> writes:

> I'd like to modify the frame title in beamer export based on
> properties or priority as this is possible in latex export.
> In latex export, one can set the variable
> org-latex-format-headline-function to the name of a function that
> creates the content of the headline. I was able to use this in
> latex export.
> As beamer export is derived from latex export I had hoped that this
> would automatically work for beamer export as well, but this
> is not the case, the headlines in beamer export are not modified.
> A second question is, whether one could also use properties to
> format the headlines. The arguments of the user supplied function
> include tags, but not properties. 

I suggest to create a function modifying the headline element in the
parse tree, and add it to `org-export-filter-parse-tree-functions'. This
way, you have access to all properties and what not, and can replace the
headline by whatever you need. E.g., (untested):

    (defun my-beamer-frame-title-filter (ast backend info)
       ((not (org-export-derived-backend-p 'beamer)) ast)
        (org-element-map ast 'headline
          (lambda (h)
            (when (equal (org-export-get-node-property :A h) "foo")
              (org-element-put-property h :title "FOO!")))


Nicolas Goaziou

      reply	other threads:[~2020-04-05 12:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-05  9:28 modify frame title in beamer export Gürtler, Martin
2020-04-05 12:36 ` Nicolas Goaziou [this message]

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