From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andy Moreton <andrewjmoreton@gmail.com>
Subject: Re: Bug: Bug in svg generation from plantuml sources [9.1.7
 (9.1.7-20-ge1f1ac-elpa @ /home/guertler/.emacs.d/elpa/org-20180319/)]
Date: Tue, 20 Mar 2018 16:16:39 +0000
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On Tue 20 Mar 2018, Martin Gürtler wrote:

> ob-plantuml wraps a plantuml source in @startuml/@enduml tags without
> checking whether they are already in the source code. This results in
> the creation of invalid SVG, at least for newer versions of plantuml,
> because the resulting SVG file contains then two XML documents ((I was
> using version 1.2018.2, it seems to work though for older plantuml
> versions <= 8059).
>
> So the following does not work
>
> #+BEGIN_SRC plantuml :file "out.svg"
> @startuml
> a->b
> @enduml
> #+END_SRC
>
>
> while this works:
>
> #+BEGIN_SRC plantuml :file "out.svg"
> a->b
> #+END_SRC
>
> Every plantuml example I found contains @startuml/@enduml so all my old
> org mode files do contain the tags... I feel the required change is not
> very difficult, but unfortunately I do not speak elisp at all...
>
> Emacs  : GNU Emacs 25.2.2 (x86_64-pc-linux-gnu, GTK+ Version 3.22.28)
>  of 2018-02-19, modified by Debian
> Package: Org mode version 9.1.7 (9.1.7-20-ge1f1ac-elpa @ /home/guertler/.emacs.d/elpa/org-20180319/)
>
> Thanks for considering,
>
> Martin

Note that newer versions of plantuml supports additional diagram types, so
diagrams may need to use:
  @startuml   .. @enduml
  @startsalt  .. @endsalt
  @startdot   .. @enddot
  @startditaa .. @endditaa
  @startgantt .. @endgantt

It is expected that support for new diagram types will use keywords
starting with "@start" and "@end" as delimiters. See "Generalisation" at
http://plantuml.com/ditaa for more details.

    AndyM