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[Orgmode] [PATCH] org-babel-confirm-evaluate when org-confirm-babel-eval

From: Vladimir Alexiev
Subject: [Orgmode] [PATCH] org-babel-confirm-evaluate when org-confirm-babel-evaluate is a function
Date: Mon, 20 Dec 2010 19:33:31 +0000 (UTC)
User-agent: Loom/3.14 (http://gmane.org/)

I tried following http://orgmode.org/worg/org-contribute.php to the letter.
But this is my first patch (and first time using git & magit), so please kindly 
give me feedback if something is not right.

* doc/org.texi: org-confirm-babel-evaluate: add example for using a
* lisp/ob.el (org-babel-confirm-evaluate): Fix for the case when
  org-confirm-babel-evaluate is a function (used to always ask no matter
  what the function returns) 

--- a/doc/org.texi
+++ b/doc/org.texi
@@ -12662,9 +12662,19 @@ Make sure you know what you are doing before 
customizing the variables
 which take off the default security brakes.
 @defopt org-confirm-babel-evaluate
-When set to t user is queried before code block evaluation
+When t (the default), the user is asked before every code block evaluation.
+When nil, the user is not asked.
+When set to a function, it is called with two arguments (language and body of 
the code
+block) and should return t to ask and nil not to ask.
 @end defopt
+For example, here is how to execute "ditaa" code (which is considered safe) 
without asking:
+(defun my-org-confirm-babel-evaluate (lang body)
+  (not (string= lang "ditaa")))  ; don't ask for ditaa
+(setq org-confirm-babel-evaluate 'my-org-confirm-babel-evaluate)
address@hidden example

--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -209,11 +209,11 @@ Note disabling confirmation may result in accidental 
 of potentially harmful code."
   (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
                   (when (assoc :noeval (nth 2 info)) "no")))
-        (query (or (equal eval "query")
-                   (if (functionp org-confirm-babel-evaluate)
-                       (funcall org-confirm-babel-evaluate
-                                (nth 0 info) (nth 1 info))
-                     org-confirm-babel-evaluate))))
+         (query (cond ((equal eval "query"))
+                      ((functionp org-confirm-babel-evaluate)
+                       (funcall org-confirm-babel-evaluate
+                                (nth 0 info) (nth 1 info)))
+                      ((org-confirm-babel-evaluate)))))
     (if (or (equal eval "never") (equal eval "no")
            (and query
                 (not (yes-or-no-p


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