setting a custom flag for src blocks

[Matt Price <moptop99@gmail.com>]

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On Sat, Dec 10, 2016 at 12:19 AM, Matt Price <moptop99@gmail.com> wrote:

>
>
> On Fri, Dec 9, 2016 at 12:19 PM, Eric S Fraga <e.fraga@ucl.ac.uk> wrote:
>
>> On Friday,  9 Dec 2016 at 16:42, Matt Price wrote:
>> > I think I am getting closer, actually (details soon, when I have a
>> > fully working  solution)).
>>
>> I look forward to seeing it!
>>
>
> OK, I've run into the limits of my knowledge.
>
> There are at least 2 plugins that will give a live code execution
> environemnt within an HTML presentation:
> - RevealEditor, which adds one global Ace editor instance to the
> presentation, and which shows the live rendering of HTML, CSS, and JS code
> when the html encoding follows the format:
>
> <pre><code class="hljs js" data-trim contenteditable>[1,2,3].map ((x) => x + 1)
> </code></pre>
>
>
> - klipse, which  instantiates a new instance of CodeMirror for every
> appropriately formatted set of tags in the form:
>
> <klipse-snippet data-language="javascript">[1,2,3].map ((x) => x + 1)</klipse-snippet>
>
> Meanwhile, html export (and also reveal export) will give something more like:
>
> <pre  class="src src-javascript"><span style="color: #8c8c8c;">[</span>1,2,3<span style="color: #8c8c8c;">]</span>.map <span style="color: #8c8c8c;">((</span>x<span style="color: #8c8c8c;">)</span> =&gt; x + 1<span style="color: #8c8c8c;">)</span>
>
> I would like to conditionally export
>
> - revealeditor-compatible code if (a) a flag "org-reveal-use-editor" is set AND (b) the code block meets certain criteria, e.g. language and maybe something in the header like "make-live t"
>
> - klipse-compatible code if (a) a flag "org-reveal-klipsify is set AND similar conditions to (b) above
>
> - standard html output if neither of the above conditions is met.
>
> What are the best ways do achieve this, do you think? Thanks guys,
>
>
I *think* that I'm looking for an export filter. From what I can see, it
has access to all the information that  the  initial export function does.
So now I'm wondering what the easiest way is to set a simple flag for a src
block, and make that flag available to the export filter.  For instance, if
I want a particular block to be renderd in klipse on export, could I
specify somehow:

#+HEADER: klipsify t
#+BEGIN_SRC: javascript
console.log("success");
#+END_SRC

or alternatively in a subtree:

* Lots of Examples
:PROPERTIES:
#+PROPERTY: header-args:javascript  :klipsify t
:END:

#+BEGIN_SRC: javascript
console.log("success");
#+END_SRC

 Thanks again, matt

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