@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2012
@c Free Software Foundation, Inc.
@c See file emacs.texi for copying conditions.
-@node Buffers, Windows, Files, Top
+@node Buffers
@chapter Using Multiple Buffers
@cindex buffers
For typical 64-bit machines, this maximum buffer size is @math{2^61 -
2} bytes, or about 2 EiB. For typical 32-bit machines, the maximum is
usually @math{2^29 - 2} bytes, or about 512 MiB. Buffer sizes are
-also limited by the amount of memory present in the system.
+also limited by the amount of memory in the system.
@menu
* Select Buffer:: Creating a new buffer or reselecting an old one.
whose access control says you cannot write it.
@findex toggle-read-only
+@vindex view-read-only
The command @kbd{C-x C-q} (@code{toggle-read-only}) makes a read-only
buffer writable, and makes a writable buffer read-only. This works by
setting the variable @code{buffer-read-only}, which has a local value
in each buffer and makes the buffer read-only if its value is
-non-@code{nil}.
+non-@code{nil}. If you change the option @code{view-read-only} to a
+non-@code{nil} value, making the buffer read-only with @kbd{C-x C-q}
+also enables View mode in the buffer (@pxref{View Mode}).
@findex rename-buffer
@kbd{M-x rename-buffer} changes the name of the current buffer. You
@cindex Midnight mode
@vindex midnight-mode
@vindex midnight-hook
- You can also have this buffer purging done for you, every day at
-midnight, by enabling Midnight mode. Midnight mode operates each day
+ You can also have this buffer purging done for you, once a day,
+by enabling Midnight mode. Midnight mode operates each day
at midnight; at that time, it runs @code{clean-buffer-list}, or
whichever functions you have placed in the normal hook
@code{midnight-hook} (@pxref{Hooks}). To enable Midnight mode, use
The buffer menu is a read-only buffer, and can be changed only
through the special commands described in this section. The usual
-Emacs cursor motion commands can be used in this buffer. The
+cursor motion commands can be used in this buffer. The
following commands apply to the buffer described on the current line:
@table @kbd
An @dfn{indirect buffer} shares the text of some other buffer, which
is called the @dfn{base buffer} of the indirect buffer. In some ways it
-is the analogue, for buffers, of a symbolic link between files.
+is a buffer analogue of a symbolic link between files.
@table @kbd
@findex make-indirect-buffer
@item M-x make-indirect-buffer @key{RET} @var{base-buffer} @key{RET} @var{indirect-name} @key{RET}
-Create an indirect buffer named @var{indirect-name} whose base buffer
-is @var{base-buffer}.
+Create an indirect buffer named @var{indirect-name} with base buffer
+@var{base-buffer}.
@findex clone-indirect-buffer
@item M-x clone-indirect-buffer @key{RET}
Create an indirect buffer that is a twin copy of the current buffer.
@code{clone-indirect-buffer-hook} after creating the indirect buffer.
The more general way to make an indirect buffer is with the command
-@kbd{M-x make-indirect-buffer}. It creates an indirect buffer from
-buffer @var{base-buffer}, under the name @var{indirect-name}. It
-prompts for both @var{base-buffer} and @var{indirect-name} using the
-minibuffer.
+@kbd{M-x make-indirect-buffer}. It creates an indirect buffer
+named @var{indirect-name} from a buffer @var{base-buffer}, prompting for
+both using the minibuffer.
@node Buffer Convenience
@section Convenience Features and Customization of Buffer Handling
HCoop / bpt / emacs.git / blobdiff