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The buffer file name is the name of the file that is visited in that
buffer. When a buffer is not visiting a file, its buffer file name is
nil. Most of the time, the buffer name is the same as the
nondirectory part of the buffer file name, but the buffer file name and the
buffer name are distinct and can be set independently. Voir la section Visiting Files.
This function returns the absolute file name of the file that buffer
is visiting. If buffer is not visiting any file,
buffer-file-name returns nil. If buffer is not
supplied, it defaults to the current buffer.
(buffer-file-name (other-buffer))
⇒ "/usr/user/lewis/manual/files.texi"
|
This buffer-local variable contains the name of the file being visited in
the current buffer, or nil if it is not visiting a file. It is a
permanent local variable, unaffected by kill-all-local-variables.
buffer-file-name
⇒ "/usr/user/lewis/manual/buffers.texi"
|
It is risky to change this variable's value without doing various other
things. Normally it is better to use set-visited-file-name (see
below); some of the things done there, such as changing the buffer name, are
not strictly necessary, but others are essential to avoid confusing Emacs.
This buffer-local variable holds the abbreviated truename of the file
visited in the current buffer, or nil if no file is visited. It is a
permanent local, unaffected by kill-all-local-variables.
Voir la section Truenames, and Definition of abbreviate-file-name.
This buffer-local variable holds the file number and directory device number
of the file visited in the current buffer, or nil if no file or a
nonexistent file is visited. It is a permanent local, unaffected by
kill-all-local-variables.
The value is normally a list of the form (filenum
devnum). This pair of numbers uniquely identifies the file among all
files accessible on the system. See the function file-attributes, in
Other Information about Files, for more information about them.
If buffer-file-name is the name of a symbolic link, then both numbers
refer to the recursive target.
This function returns the buffer visiting file filename. If there is
no such buffer, it returns nil. The argument filename, which
must be a string, is expanded (voir la section Functions that Expand Filenames), then compared
against the visited file names of all live buffers. Note that the buffer's
buffer-file-name must match the expansion of filename exactly.
This function will not recognize other names for the same file.
(get-file-buffer "buffers.texi")
⇒ #<buffer buffers.texi>
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In unusual circumstances, there can be more than one buffer visiting the same file name. In such cases, this function returns the first such buffer in the buffer list.
This is like get-file-buffer, except that it can return any buffer
visiting the file possibly under a different name. That is, the
buffer's buffer-file-name does not need to match the expansion of
filename exactly, it only needs to refer to the same file. If
predicate is non-nil, it should be a function of one argument,
a buffer visiting filename. The buffer is only considered a suitable
return value if predicate returns non-nil. If it can not find
a suitable buffer to return, find-buffer-visiting returns nil.
If filename is a non-empty string, this function changes the name of the file visited in the current buffer to filename. (If the buffer had no visited file, this gives it one.) The next time the buffer is saved it will go in the newly-specified file.
This command marks the buffer as modified, since it does not (as far as Emacs knows) match the contents of filename, even if it matched the former visited file. It also renames the buffer to correspond to the new file name, unless the new name is already in use.
If filename is nil or the empty string, that stands for “no
visited file.” In this case, set-visited-file-name marks the buffer
as having no visited file, without changing the buffer's modified flag.
Normally, this function asks the user for confirmation if there already is a
buffer visiting filename. If no-query is non-nil, that
prevents asking this question. If there already is a buffer visiting
filename, and the user confirms or query is non-nil, this
function makes the new buffer name unique by appending a number inside of
‘<…>’ to filename.
If along-with-file is non-nil, that means to assume that the
former visited file has been renamed to filename. In this case, the
command does not change the buffer's modified flag, nor the buffer's
recorded last file modification time as reported by
visited-file-modtime (voir la section Buffer Modification Time). If
along-with-file is nil, this function clears the recorded last
file modification time, after which visited-file-modtime returns
zero.
When the function set-visited-file-name is called interactively, it
prompts for filename in the minibuffer.
This buffer-local variable specifies a string to display in a buffer listing where the visited file name would go, for buffers that don't have a visited file name. Dired buffers use this variable.
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Ce document a été généré par Eric Reinbold le 13 Octobre 2007 en utilisant texi2html 1.78.