Hello,
I was helping out "ablephar`" on IRC and they found that setting a
file property `header-args:C++` does not work.
After some edebug magic, I discovered that org has a feature that lets
you append property values! (Not the best way to discover a great
feature, I must say! :-)
The fix could either be a documentation fix. (I would've tried using
cpp instead of C++, if I knew that was supported). But, this would
still have some users seeing things broken and then looking up docs or
trying out the alternative.
OR
a "hacky" fix, (better for the users ?), could be to consider KEY+ to
be indicating appending, but KEY++ to not. Thoughts?
Thanks,
Puneeth
diff --git a/lisp/org.el b/lisp/org.el
index e806440..fc850b8 100755
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -15415,7 +15415,8 @@ Being in this list makes sure that they are offered for completion.")
(defun org--update-property-plist (key val props)
"Associate KEY to VAL in alist PROPS.
Modifications are made by side-effect. Return new alist."
- (let* ((appending (string= (substring key -1) "+"))
+ (let* ((appending (and (string= (substring key -1) "+")
+ (not (string= (substring key -2) "++"))))
(key (if appending (substring key 0 -1) key))
(old (assoc-string key props t)))
(if (not old) (cons (cons key val) props)
