@c -*-texinfo-*-
@c This is part of the GNU Emacs Lisp Reference Manual.
-@c Copyright (C) 1990-1995, 1998-1999, 2001-2012
-@c Free Software Foundation, Inc.
+@c Copyright (C) 1990-1995, 1998-1999, 2001-2014 Free Software
+@c Foundation, Inc.
@c See the file elisp.texi for copying conditions.
@node Buffers
@chapter Buffers
* Modification Time:: Determining whether the visited file was changed
"behind Emacs's back".
* Read Only Buffers:: Modifying text is not allowed in a read-only buffer.
-* The Buffer List:: How to look at all the existing buffers.
+* Buffer List:: How to look at all the existing buffers.
* Creating Buffers:: Functions that create buffers.
* Killing Buffers:: Buffers exist until explicitly killed.
* Indirect Buffers:: An indirect buffer shares text with some other buffer.
already is a buffer visiting @var{filename}. If @var{no-query} is
non-@code{nil}, that prevents asking this question. If there already
is a buffer visiting @var{filename}, and the user confirms or
-@var{query} is non-@code{nil}, this function makes the new buffer name
-unique by appending a number inside of @samp{<@dots{}>} to @var{filename}.
+@var{no-query} is non-@code{nil}, this function makes the new
+buffer name unique by appending a number inside of @samp{<@dots{}>} to
+@var{filename}.
If @var{along-with-file} is non-@code{nil}, that means to assume that
the former visited file has been renamed to @var{filename}. In this
file should not be done.
@end defun
-@c Emacs 19 feature
@defun visited-file-modtime
This function returns the current buffer's recorded last file
modification time, as a list of the form @code{(@var{high} @var{low}
-@var{microsec} @var{picosec})}.
-(This is the same format that @code{file-attributes} uses to return
-time values; see @ref{File Attributes}.)
+@var{microsec} @var{picosec})}. (This is the same format that
+@code{file-attributes} uses to return time values; @pxref{File
+Attributes}.)
If the buffer has no recorded last modification time, this function
returns zero. This case occurs, for instance, if the buffer is not
too. For instance, in a Dired buffer listing a directory, it returns
the last modification time of that directory, as recorded by Dired.
-For a new buffer visiting a not yet existing file, @var{high} is
-@minus{}1 and @var{low} is 65535, that is,
-@ifnottex
-@w{2**16 - 1.}
-@end ifnottex
-@tex
-@math{2^{16}-1}.
-@end tex
+If the buffer is not visiting a file, this function returns -1.
@end defun
-@c Emacs 19 feature
@defun set-visited-file-modtime &optional time
This function updates the buffer's record of the last modification time
of the visited file, to the value specified by @var{time} if @var{time}
signal an error if the current buffer is read-only.
@end defun
-@node The Buffer List
+@node Buffer List
@section The Buffer List
@cindex buffer list
window.
@end deffn
+@defvar buffer-list-update-hook
+This is a normal hook run whenever the buffer list changes. Functions
+(implicitly) running this hook are @code{get-buffer-create}
+(@pxref{Creating Buffers}), @code{rename-buffer} (@pxref{Buffer Names}),
+@code{kill-buffer} (@pxref{Killing Buffers}), @code{bury-buffer} (see
+above) and @code{select-window} (@pxref{Selecting Windows}).
+@end defvar
@node Creating Buffers
@section Creating Buffers
@end deffn
@defvar kill-buffer-query-functions
-After confirming unsaved changes, @code{kill-buffer} calls the functions
+Before confirming unsaved changes, @code{kill-buffer} calls the functions
in the list @code{kill-buffer-query-functions}, in order of appearance,
with no arguments. The buffer being killed is the current buffer when
they are called. The idea of this feature is that these functions will
HCoop / bpt / emacs.git / blobdiff