* sun-mouse.el (suspend-emacstool): Run suspend-hook, not

[bpt/emacs.git] / lisp / tabify.el

diff --git a/lisp/tabify.el b/lisp/tabify.el
index 492bd48..266dd39 100644 (file)
--- a/lisp/tabify.el
+++ b/lisp/tabify.el
@@ -1,11 +1,14 @@
-;; Tab conversion commands for Emacs
+;;; tabify.el --- tab conversion commands for Emacs
+
 ;; Copyright (C) 1985 Free Software Foundation, Inc.
 
+;; Maintainer: FSF
+
 ;; This file is part of GNU Emacs.
 
 ;; 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 1, or (at your option)
+;; the Free Software Foundation; either version 2, or (at your option)
 ;; any later version.
 
 ;; GNU Emacs is distributed in the hope that it will be useful,
@@ -17,15 +20,23 @@
 ;; along with GNU Emacs; see the file COPYING.  If not, write to
 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 
+;;; Commentary:
+
+;; Commands to optimize spaces to tabs or expand tabs to spaces in a region
+;; (`tabify' and `untabify').  The variable tab-width does the obvious.
+
+;;; Code:
 
 ;;;###autoload
 (defun untabify (start end)
   "Convert all tabs in region to multiple spaces, preserving columns.
-The variable tab-width controls the action."
+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 start end)
+      (narrow-to-region (point-min) end)
       (goto-char start)
       (while (search-forward "\t" nil t)       ; faster than re-search
        (let ((start (point))
@@ -40,7 +51,9 @@ The variable tab-width controls the action."
   "Convert multiple spaces in region to tabs when possible.
 A group of spaces is partially replaced by tabs
 when this can be done without changing the column they end at.
-The variable tab-width controls the action."
+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
@@ -51,3 +64,5 @@ The variable tab-width controls the action."
              (indent-tabs-mode t))
          (delete-region (match-beginning 0) (point))
          (indent-to column))))))
+
+;;; tabify.el ends here