[O] [PATCH 2/3] ob-calc: don't leave garbage on the stack

[Jan Malakhovski]

* lisp/ob-calc.el (org-babel-calc-eval-string): Clean up the stack after 
expression
  evaluation.
---
 lisp/ob-calc.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lisp/ob-calc.el b/lisp/ob-calc.el
index a8c50da..99d0a09 100644
--- a/lisp/ob-calc.el
+++ b/lisp/ob-calc.el
@@ -89,7 +89,9 @@
             (split-string (org-babel-expand-body:calc body params) "[\n\r]"))))
   (save-excursion
     (with-current-buffer (get-buffer "*Calculator*")
-      (calc-eval (calc-top 1)))))
+      (prog1
+        (calc-eval (calc-top 1))
+        (calc-pop 1)))))
 
 (defun org-babel-calc-maybe-resolve-var (el)
   (if (consp el)
-- 
2.6.4