I'm such a slow coder that this is all I got to in my free moments
today:patch for defcustoms that inserts the necessary code into a src
block.  further refinements necessary before it works properly; severla
more would be useful for hte improvements that Bastien suggests.


On Wed, Dec 14, 2016 at 12:55 PM, Matt Price <mopto...@gmail.com> wrote:

>
>
>
> On Wed, Dec 14, 2016 at 5:06 AM, Rasmus <ras...@gmx.us> wrote:
>
>>
>> I don’t know if much more support is needed.  We add some automatic
>> configuration scripting or add a per-block switch for enabling klipse.
>>
>> Two more little things. HTML blocks can't use the standard editor so they
> need an extra attribute `data-editor-style="html"`
>
>
>
From 05cc9948fe65201317a770c2d20cb9202b7d83ce Mon Sep 17 00:00:00 2001
From: Matt Price <matt.pr...@utoronto.ca>
Date: Wed, 14 Dec 2016 17:37:09 -0500
Subject: [PATCH] preliminary support for live preview of code snippets

Src blocks in supported languages are exported in a REPL which permits
live execution, courtesy of the klipse library.  Defcustom
`org-html-klipsify-src' set to nil by default, controls this
behaviour.
---
 lisp/ox-html.el | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/lisp/ox-html.el b/lisp/ox-html.el
index 63a8c84..2704f84 100644
--- a/lisp/ox-html.el
+++ b/lisp/ox-html.el
@@ -1548,7 +1548,33 @@ CSS classes, then this prefix can be very useful."
   :group 'org-export-html
   :type 'string)
 
-
+(defcustom org-html-klipsify-src nil
+  "Set to non-nil if you would like to make source code blocks editable in exported presentation."
+  :group 'org-export-html
+  :type 'boolean)
+
+(defcustom org-html-klipse-css "https://storage.googleapis.com/app.klipse.tech/css/codemirror.css";
+  "Location of the codemirror css file for use with klipse."
+  :group 'org-export-html
+  :type 'string)
+
+(defcustom org-html-klipse-js "https://storage.googleapis.com/app.klipse.tech/plugin_prod/js/klipse_plugin.min.js";
+  "location of the klipse js source code."
+  :group 'org-export-html
+  :type 'string)
+
+(defcustom org-html-klipse-selection-script
+  "window.klipse_settings = {selector_eval_html: '.src-html',
+                             selector_eval_js: '.src-js',
+                             selector_eval_python_client: '.src-python',
+                             selector_eval_scheme: '.src-scheme',
+                             selector: '.src-clojure',
+                             selector_eval_ruby: '.src-ruby'};"
+  "javascript snippet to activate klipse"
+  :group 'org-export-html
+  :type 'string)
+
+
 ;;; Internal Functions
 
 (defun org-html-xhtml-p (info)
@@ -2041,6 +2067,11 @@ holding export options."
    (format "</%s>\n" (nth 1 (assq 'content (plist-get info :html-divs))))
    ;; Postamble.
    (org-html--build-pre/postamble 'postamble info)
+   ;; klipse library for live code blocks, if requested
+   (if org-html-klipsify-src
+       (concat "<script>"org-html-klipse-selection-script "</script>
+<script src=\"" org-html-klipse-js "\"></script>
+<link rel=\"stylesheet\" type=\"text/css\" href=\"" org-html-klipse-css "\"/>"))
    ;; Closing document.
    "</body>\n</html>"))
 
-- 
2.10.2

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