Re: Export ascii-images using ditaa when targeting HTML?

From: Carsten Dominik <dominik@science.uva.nl>
To: Eric Schulte <schulte.eric@gmail.com>
Cc: Mac <xmfrw8002@sneakemail.com>, emacs-orgmode@gnu.org
Subject: Re: Export ascii-images using ditaa when targeting HTML?
Date: Wed, 12 Nov 2008 07:45:52 +0100	[thread overview]
Message-ID: <6412771E-AC32-4F99-BB9E-B54F0A184621@uva.nl> (raw)
In-Reply-To: <878wrpso07.fsf@gmail.com>

Hi Eric,

may I suggest the following change?

If you allow the format in the block to be like this:

#+begin_ditaa blue.png -r -S
: +---------+
: | cBLU    |
: |         |
: |    +----+
: |    |cPNK|
: |    |    |
: +----+----+
#+end_ditaa

then the ascii images will not be attacked by Org syntax highlighting,
you can use C-c ' to edit them.  All you would need to do is to strip
the initial colon and space when extracting the image for export.

Also, we should add a hok so that your add-on can install special
handlers for C-c ', in order to edit these new blocks.

I like it!

- Carsten

P.S. yes, I should fix Org-modes font-locking stuff so that
it can cover large blocks, but frankly, I do not know how to
do that.

On Nov 12, 2008, at 2:59 AM, Eric Schulte wrote:

> Hi Mac,
>
> That's an interesting utility.
>
> I have been working on an org-mode add-on for the specialized  
> processing
> of #+begin_* blocks.  Since this is very similar to the need you
> expressed below, I implemented ditaa processing as one of the examples
> in the initial implementation of this add-on.
>
> If you want to grab the org-exp-block.el file from
>
> http://github.com/eschulte/org-contrib/tree/master/org-exp-blocks.el
>
> you can use it to export ditaa blocks to images when exporting an org
> file to html.  There are instruction in the top of the elisp file,
> mainly you just need to load the file, and set `ditaa-jar-path' to the
> path to ditaa.jar on your system.  Then if you setup a block like the
> following
>
> #+begin_ditaa blue.png -r -S
> +---------+
> | cBLU    |
> |         |
> |    +----+
> |    |cPNK|
> |    |    |
> +----+----+
> #+end_ditaa
>
> The ascii inside the block will be exported to an image in blue.png
> passing any following options as command line options to ditaa.jar.
>
> Hope this is helpful.
>
> Cheers -- Eric
>
> Mac <xmfrw8002@sneakemail.com> writes:
>
>> I would like to convert my ASCII-images inside my document.org  
>> before exporting
>> the document to HTML.
>>
>> I've found this converter, ditaa, which is a java program that  
>> takes an ASCII
>> text file and creates a png file (http://ditaa.sourceforge.net/).
>>
>> I intend to find my ASCII figure, save it as a separate text file,  
>> and run ditaa
>> on it. In my document.org I'll comment the ASCII-art so it won't be  
>> exported and
>> add a link so the image will be included in the html file.
>>
>> [[file:figure_1.png]]
>> #+BEGIN_COMMENT
>>                 V,mA
>>                  |
>>               +-----+
>>               |40140|
>>               +-----+
>>                  |
>>                  |    +----+
>>              +--------|4561|----------> PC
>>              |        +----+
>>           +----+
>>           |4060|
>>           +----+
>>              |
>>           Relay Out
>> #+END_COMMENT
>>
>> Before reinventing the wheel, anyone done anything similar, or have  
>> ideas?
>>
>>
>>
>>
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