;;; newcomment.el --- (un)comment regions of buffers -*- lexical-binding: t -*-
-;; Copyright (C) 1999-2014 Free Software Foundation, Inc.
+;; Copyright (C) 1999-2015 Free Software Foundation, Inc.
;; Author: code extracted from Emacs-20's simple.el
;; Maintainer: Stefan Monnier <monnier@iro.umontreal.ca>
(end-of-line 0)
(insert comend))))))))))))
+;;;###autoload
+(defun comment-line (n)
+ "Comment or uncomment current line and leave point after it.
+With positive prefix, apply to N lines including current one.
+With negative prefix, apply to -N lines above. Also, further
+consecutive invocations of this command will inherit the negative
+argument.
+
+If region is active, comment lines in active region instead.
+Unlike `comment-dwim', this always comments whole lines."
+ (interactive "p")
+ (if (use-region-p)
+ (comment-or-uncomment-region
+ (save-excursion
+ (goto-char (region-beginning))
+ (line-beginning-position))
+ (save-excursion
+ (goto-char (region-end))
+ (line-end-position)))
+ (when (and (eq last-command 'comment-line-backward)
+ (natnump n))
+ (setq n (- n)))
+ (let ((range
+ (list (line-beginning-position)
+ (goto-char (line-end-position n)))))
+ (comment-or-uncomment-region
+ (apply #'min range)
+ (apply #'max range)))
+ (forward-line 1)
+ (back-to-indentation)
+ (unless (natnump n) (setq this-command 'comment-line-backward))))
+
(provide 'newcomment)
;;; newcomment.el ends here