   (save-excursion
     (beginning-of-line)
     (looking-at line-pattern))))
-  
+
 
 (defun diffscuss-calibrate-source-line (old-or-new)
   "Deduce what line in the source file the point is on."

      (looking-at line-pattern))))

(defun diffscuss-line-type-mismatch (old-or-new)
  "True if the line starts with + and old-or-new is 'old', or line starts with - 
and old or new is 'new'."
  (let ((line-pattern nil))
    (if (string= old-or-new "old")

  (diffscuss-jump-to-end-of-thread)
  (end-of-line)
  (newline)
  (insert (diffscuss-make-comment "%*"))
  (forward-line -1)
  (end-of-line))

(defun diffscuss-comment-or-reply ()
  "Insert a comment or reply based on context."
