plantuml in emacs org-mode - Help!

plantuml in emacs org-mode - Help!

[Rob Torop]

I can't get embedded plantuml to work, and I'm *sure* it's a windows path
kind of problem because I get

     *Could not find plantuml.jar at c:\cygwin64\home\  ....* *(see below
for path)*

I can see where this arises in the source, and I'm sure I just need to
change a few variables to have it work.  If you know how to do it, please
let me know! What's odd is that the source seems to check the validity of
the jar path only if system-type is not cygwin :-(

Specifically, I want to have something like


*#+begin_src plantuml :file blah.png *
*a->b*
*#+end_src*

and then export to html using C-c  C-e h h (or show inline with C-c C-c)

In my .emacs, I  added *(plantuml . t)* to my list of babel languages to
load, and I've got

*(setq  org-plantuml-jar-path
"c:\\cygwin64\\home\\myid\lib\\plantuml.1.2018.8.jar")*

since when using cygwin, the jar is at ~/lib/plantuml.1.2018.8.jar

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Re: plantuml in emacs org-mode - Help!

[Ken Brown]

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On 1/27/2019 1:08 PM, Rob Torop wrote:
> I can't get embedded plantuml to work, and I'm *sure* it's a windows path
> kind of problem because I get
> 
>       *Could not find plantuml.jar at c:\cygwin64\home\  ....* *(see below
> for path)*
> 
> I can see where this arises in the source, and I'm sure I just need to
> change a few variables to have it work.  If you know how to do it, please
> let me know! What's odd is that the source seems to check the validity of
> the jar path only if system-type is not cygwin :-(
> 
> Specifically, I want to have something like
> 
> 
> *#+begin_src plantuml :file blah.png *
> *a->b*
> *#+end_src*
> 
> and then export to html using C-c  C-e h h (or show inline with C-c C-c)
> 
> In my .emacs, I  added *(plantuml . t)* to my list of babel languages to
> load, and I've got
> 
> *(setq  org-plantuml-jar-path
> "c:\\cygwin64\\home\\myid\lib\\plantuml.1.2018.8.jar")*
> 
> since when using cygwin, the jar is at ~/lib/plantuml.1.2018.8.jar

I think you'd be better off using a Posix path for org-plantuml-jar-path so that 
(file-exists-p org-plantuml-jar-path) will find the file.  Then, since java is a 
Windows program, you'd have to patch the elisp sources to convert the Posix path 
to a Windows path (via 'cygpath -w') in the call to java.

I can probably do this at some point and send the patch upstream, but I'm busy 
with other things at the moment and won't be able to get to it for a while.

Ken
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