(eval-expression): Prefix arg means insert value in current buffer.

1 files changed, 6 insertions, 3 deletions

diff --git a/lisp/simple.el b/lisp/simple.el
index aa9fa97aeaa..798a706886e 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -514,15 +514,18 @@ Other major modes are defined by comparison with this one."
 
 ;; We define this, rather than making `eval' interactive,
 ;; for the sake of completion of names like eval-region, eval-current-buffer.
-(defun eval-expression (eval-expression-arg)
+(defun eval-expression (eval-expression-arg
+                        &optional eval-expression-insert-value)
   "Evaluate EXPRESSION and print value in minibuffer.
 Value is also consed on to front of the variable `values'."
   (interactive
    (list (read-from-minibuffer "Eval: "
                                nil read-expression-map t
-                               'read-expression-history)))
+                               'read-expression-history)
+         current-prefix-arg))
   (setq values (cons (eval eval-expression-arg) values))
-  (prin1 (car values) t))
+  (prin1 (car values)
+         (if eval-expression-insert-value (current-buffer) t)))
 
 (defun edit-and-eval-command (prompt command)
   "Prompting with PROMPT, let user edit COMMAND and eval result.