Fix race conditions with MS-Windows lock files by using _sopen.

[gnu-emacs] / lisp / tabify.el

diff --git a/lisp/tabify.el b/lisp/tabify.el
index d0d65efcf9c0620955003c9d0154a4780e3a0ec6..6bf45b36886be830478e644b205768a91cd0c7f1 100644 (file)
--- a/lisp/tabify.el
+++ b/lisp/tabify.el
@@ -1,16 +1,16 @@
 ;;; tabify.el --- tab conversion commands for Emacs
 
-;; Copyright (C) 1985, 1994, 2001, 2002, 2003, 2004,
-;;   2005, 2006, 2007 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1994, 2001-2013 Free Software Foundation, Inc.
 
 ;; Maintainer: FSF
+;; Package: emacs
 
 ;; This file is part of GNU Emacs.
 
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs is free software: you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
 
 ;; GNU Emacs is distributed in the hope that it will be useful,
 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -18,9 +18,7 @@
 ;; GNU General Public License for more details.
 
 ;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 
@@ -36,19 +34,21 @@ Called non-interactively, the region is specified by arguments
 START and END, rather than by the position of point and mark.
 The variable `tab-width' controls the spacing of tab stops."
   (interactive "r")
-  (save-excursion
-    (save-restriction
-      (narrow-to-region (point-min) end)
-      (goto-char start)
-      (while (search-forward "\t" nil t)       ; faster than re-search
-       (forward-char -1)
-       (let ((tab-beg (point))
-             (indent-tabs-mode nil)
-             column)
-         (skip-chars-forward "\t")
-         (setq column (current-column))
-         (delete-region tab-beg (point))
-         (indent-to column))))))
+  (let ((c (current-column)))
+    (save-excursion
+      (save-restriction
+        (narrow-to-region (point-min) end)
+        (goto-char start)
+        (while (search-forward "\t" nil t)      ; faster than re-search
+          (forward-char -1)
+          (let ((tab-beg (point))
+                (indent-tabs-mode nil)
+                column)
+            (skip-chars-forward "\t")
+            (setq column (current-column))
+            (delete-region tab-beg (point))
+            (indent-to column)))))
+    (move-to-column c)))
 
 (defvar tabify-regexp " [ \t]+"
   "Regexp matching whitespace that tabify should consider.
@@ -91,5 +91,4 @@ The variable `tab-width' controls the spacing of tab stops."
 
 (provide 'tabify)
 
-;; arch-tag: c83893b1-e0cc-4e57-8a09-73fd03466416
 ;;; tabify.el ends here