From: Michal Nazarewicz Date: Wed, 22 Jun 2016 17:06:57 +0000 (+0200) Subject: Don’t create unnecessary marker in ‘delete-trailing-whitespace’ X-Git-Tag: emacs-26.0.90~1840^2~118 X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=dcefd2bbc0e404c26f1e5b68c910404355f488fb;p=emacs.git Don’t create unnecessary marker in ‘delete-trailing-whitespace’ * lisp/simple.el (delete-trailing-whitespace): If END argument is nil, there is no need for the end-marker to be created. --- diff --git a/lisp/simple.el b/lisp/simple.el index 37f6d5000e9..ba026aff77f 100644 --- a/lisp/simple.el +++ b/lisp/simple.el @@ -602,7 +602,7 @@ buffer if the variable `delete-trailing-lines' is non-nil." (list nil nil)))) (save-match-data (save-excursion - (let ((end-marker (copy-marker (or end (point-max))))) + (let ((end-marker (and end (copy-marker end)))) (goto-char (or start (point-min))) (with-syntax-table (make-syntax-table (syntax-table)) ;; Don't delete formfeeds, even if they are considered whitespace. @@ -611,15 +611,14 @@ buffer if the variable `delete-trailing-lines' is non-nil." (modify-syntax-entry ?\n "_") (while (re-search-forward "\\s-+$" end-marker t) (delete-region (match-beginning 0) (match-end 0)))) - ;; Delete trailing empty lines. - (goto-char end-marker) - (when (and (not end) - delete-trailing-lines - ;; Really the end of buffer. - (= (point-max) (1+ (buffer-size))) - (<= (skip-chars-backward "\n") -2)) - (delete-region (1+ (point)) end-marker)) - (set-marker end-marker nil)))) + (if end + (set-marker end-marker nil) + ;; Delete trailing empty lines. + (and delete-trailing-lines + ;; Really the end of buffer. + (= (goto-char (point-max)) (1+ (buffer-size))) + (<= (skip-chars-backward "\n") -2) + (delete-region (1+ (point)) (point-max))))))) ;; Return nil for the benefit of `write-file-functions'. nil)