;;; files.el --- file input and output commands for Emacs
;; Copyright (C) 1985, 1986, 1987, 1992, 1993, 1994, 1995, 1996,
-;; 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-;; 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+;; 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+;; 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;; Maintainer: FSF
+;; Package: emacs
;; This file is part of GNU Emacs.
"Non-nil if visited file was read-only when visited.")
(make-variable-buffer-local 'buffer-file-read-only)
-(defcustom temporary-file-directory
- (file-name-as-directory
- (cond ((memq system-type '(ms-dos windows-nt))
- (or (getenv "TEMP") (getenv "TMPDIR") (getenv "TMP") "c:/temp"))
- (t
- (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP") "/tmp"))))
- "The directory for writing temporary files."
- :group 'files
- :initialize 'custom-initialize-delay
- :type 'directory)
-
(defcustom small-temporary-file-directory
(if (eq system-type 'ms-dos) (getenv "TMPDIR"))
"The directory for writing small temporary files.
(inhibit-file-name-operation op))
(apply op args))))
+(declare-function dos-convert-standard-filename "dos-fns.el" (filename))
+(declare-function w32-convert-standard-filename "w32-fns.el" (filename))
+
(defun convert-standard-filename (filename)
"Convert a standard file's name to something suitable for the OS.
This means to guarantee valid names and perhaps to canonicalize
`w32-shell-dos-semantics').
See Info node `(elisp)Standard File Names' for more details."
- (if (eq system-type 'cygwin)
- (let ((name (copy-sequence filename))
- (start 0))
- ;; Replace invalid filename characters with !
- (while (string-match "[?*:<>|\"\000-\037]" name start)
- (aset name (match-beginning 0) ?!)
- (setq start (match-end 0)))
- name)
- filename))
+ (cond
+ ((eq system-type 'cygwin)
+ (let ((name (copy-sequence filename))
+ (start 0))
+ ;; Replace invalid filename characters with !
+ (while (string-match "[?*:<>|\"\000-\037]" name start)
+ (aset name (match-beginning 0) ?!)
+ (setq start (match-end 0)))
+ name))
+ ((eq system-type 'windows-nt)
+ (w32-convert-standard-filename filename))
+ ((eq system-type 'ms-dos)
+ (dos-convert-standard-filename filename))
+ (t filename)))
(defun read-directory-name (prompt &optional dir default-dirname mustmatch initial)
"Read directory name, prompting with PROMPT and completing in directory DIR.
(let ((x (file-name-directory suffix)))
(if x (1- (length x)) (length suffix))))))
(t
- (let ((names nil)
+ (let ((names '())
+ ;; If we have files like "foo.el" and "foo.elc", we could load one of
+ ;; them with "foo.el", "foo.elc", or "foo", where just "foo" is the
+ ;; preferred way. So if we list all 3, that gives a lot of redundant
+ ;; entries for the poor soul looking just for "foo". OTOH, sometimes
+ ;; the user does want to pay attention to the extension. We try to
+ ;; diffuse this tension by stripping the suffix, except when the
+ ;; result is a single element (i.e. usually we only list "foo" unless
+ ;; it's the only remaining element in the list, in which case we do
+ ;; list "foo", "foo.elc" and "foo.el").
+ (fullnames '())
(suffix (concat (regexp-opt suffixes t) "\\'"))
(string-dir (file-name-directory string))
(string-file (file-name-nondirectory string)))
(dolist (dir dirs)
- (unless dir
- (setq dir default-directory))
- (if string-dir (setq dir (expand-file-name string-dir dir)))
- (when (file-directory-p dir)
- (dolist (file (file-name-all-completions
- string-file dir))
- (push file names)
- (when (string-match suffix file)
- (setq file (substring file 0 (match-beginning 0)))
- (push file names)))))
+ (unless dir
+ (setq dir default-directory))
+ (if string-dir (setq dir (expand-file-name string-dir dir)))
+ (when (file-directory-p dir)
+ (dolist (file (file-name-all-completions
+ string-file dir))
+ (if (not (string-match suffix file))
+ (push file names)
+ (push file fullnames)
+ (push (substring file 0 (match-beginning 0)) names)))))
+ ;; Switching from names to names+fullnames creates a non-monotonicity
+ ;; which can cause problems with things like partial-completion.
+ ;; To minimize the problem, filter out completion-regexp-list, so that
+ ;; M-x load-library RET t/x.e TAB finds some files. Also remove elements
+ ;; from `names' which only matched `string' when they still had
+ ;; their suffix.
+ (setq names (all-completions string names))
+ ;; Remove duplicates of the first element, so that we can easily check
+ ;; if `names' really only contains a single element.
+ (when (cdr names) (setcdr names (delete (car names) (cdr names))))
+ (unless (cdr names)
+ ;; There's no more than one matching non-suffixed element, so expand
+ ;; the list by adding the suffixed elements as well.
+ (setq names (nconc names fullnames)))
(completion-table-with-context
string-dir names string-file pred action)))))
(funcall handler 'file-remote-p file identification connected)
nil)))
+(defcustom remote-file-name-inhibit-cache 10
+ "Whether to use the remote file-name cache for read access.
+
+When `nil', always use the cached values.
+When `t', never use them.
+A number means use them for that amount of seconds since they were
+cached.
+
+File attributes of remote files are cached for better performance.
+If they are changed out of Emacs' control, the cached values
+become invalid, and must be invalidated.
+
+In case a remote file is checked regularly, it might be
+reasonable to let-bind this variable to a value less then the
+time period between two checks.
+Example:
+
+ \(defun display-time-file-nonempty-p \(file)
+ \(let \(\(remote-file-name-inhibit-cache \(- display-time-interval 5)))
+ \(and \(file-exists-p file)
+ \(< 0 \(nth 7 \(file-attributes \(file-chase-links file)))))))"
+ :group 'files
+ :version "24.1"
+ :type `(choice
+ (const :tag "Do not inhibit file name cache" nil)
+ (const :tag "Do not use file name cache" t)
+ (integer :tag "Do not use file name cache"
+ :format "Do not use file name cache older then %v seconds"
+ :value 10)))
+
(defun file-local-copy (file)
"Copy the file FILE into a temporary file on this machine.
Returns the name of the local copy, or nil, if FILE is directly
(if (fboundp 'ucs-set-table-for-input) ; don't lose when building
(ucs-set-table-for-input)))
-(defcustom auto-mode-case-fold nil
+(defcustom auto-mode-case-fold t
"Non-nil means to try second pass through `auto-mode-alist'.
This means that if the first case-sensitive search through the alist fails
to find a matching major mode, a second case-insensitive search is made.
(cons (purecopy (car elt)) (cdr elt)))
`(;; do this first, so that .html.pl is Polish html, not Perl
("\\.s?html?\\(\\.[a-zA-Z_]+\\)?\\'" . html-mode)
+ ("\\.svgz?\\'" . image-mode)
+ ("\\.svgz?\\'" . xml-mode)
+ ("\\.x[bp]m\\'" . image-mode)
+ ("\\.x[bp]m\\'" . c-mode)
+ ("\\.p[bpgn]m\\'" . image-mode)
+ ("\\.tiff?\\'" . image-mode)
+ ("\\.gif\\'" . image-mode)
+ ("\\.png\\'" . image-mode)
+ ("\\.jpe?g\\'" . image-mode)
("\\.te?xt\\'" . text-mode)
("\\.[tT]e[xX]\\'" . tex-mode)
("\\.ins\\'" . tex-mode) ;Installation files for TeX packages.
("\\.te?xi\\'" . texinfo-mode)
("\\.[sS]\\'" . asm-mode)
("\\.asm\\'" . asm-mode)
+ ("\\.css\\'" . css-mode)
+ ("\\.mixal\\'" . mixal-mode)
+ ("\\.gcov\\'" . compilation-mode)
+ ;; Besides .gdbinit, gdb documents other names to be usable for init
+ ;; files, cross-debuggers can use something like
+ ;; .PROCESSORNAME-gdbinit so that the host and target gdbinit files
+ ;; don't interfere with each other.
+ ("/\\.[a-z0-9-]*gdbinit" . gdb-script-mode)
("[cC]hange\\.?[lL]og?\\'" . change-log-mode)
("[cC]hange[lL]og[-.][0-9]+\\'" . change-log-mode)
("\\$CHANGE_LOG\\$\\.TXT" . change-log-mode)
("\\.cl[so]\\'" . latex-mode) ;LaTeX 2e class option
("\\.bbl\\'" . latex-mode)
("\\.bib\\'" . bibtex-mode)
+ ("\\.bst\\'" . bibtex-style-mode)
("\\.sql\\'" . sql-mode)
("\\.m[4c]\\'" . m4-mode)
("\\.mf\\'" . metafont-mode)
;; The list of archive file extensions should be in sync with
;; `auto-coding-alist' with `no-conversion' coding system.
("\\.\\(\
-arc\\|zip\\|lzh\\|lha\\|zoo\\|[jew]ar\\|xpi\\|rar\\|\
-ARC\\|ZIP\\|LZH\\|LHA\\|ZOO\\|[JEW]AR\\|XPI\\|RAR\\)\\'" . archive-mode)
+arc\\|zip\\|lzh\\|lha\\|zoo\\|[jew]ar\\|xpi\\|rar\\|7z\\|\
+ARC\\|ZIP\\|LZH\\|LHA\\|ZOO\\|[JEW]AR\\|XPI\\|RAR\\|7Z\\)\\'" . archive-mode)
("\\.\\(sx[dmicw]\\|od[fgpst]\\|oxt\\)\\'" . archive-mode) ;OpenOffice.org
("\\.\\(deb\\|[oi]pk\\)\\'" . archive-mode) ; Debian/Opkg packages.
;; Mailer puts message to be edited in
;; /tmp/Re.... or Message
("\\`/tmp/Re" . text-mode)
("/Message[0-9]*\\'" . text-mode)
- ("\\.zone\\'" . zone-mode)
;; some news reader is reported to use this
("\\`/tmp/fol/" . text-mode)
("\\.oak\\'" . scheme-mode)
("[:/]_emacs\\'" . emacs-lisp-mode)
("/crontab\\.X*[0-9]+\\'" . shell-script-mode)
("\\.ml\\'" . lisp-mode)
+ ;; Linux-2.6.9 uses some different suffix for linker scripts:
+ ;; "ld", "lds", "lds.S", "lds.in", "ld.script", and "ld.script.balo".
+ ;; eCos uses "ld" and "ldi". Netbsd uses "ldscript.*".
+ ("\\.ld[si]?\\'" . ld-script-mode)
+ ("ld\\.?script\\'" . ld-script-mode)
+ ;; .xs is also used for ld scripts, but seems to be more commonly
+ ;; associated with Perl .xs files (C with Perl bindings). (Bug#7071)
+ ("\\.xs\\'" . c-mode)
+ ;; Explained in binutils ld/genscripts.sh. Eg:
+ ;; A .x script file is the default script.
+ ;; A .xr script is for linking without relocation (-r flag). Etc.
+ ("\\.x[abdsru]?[cnw]?\\'" . ld-script-mode)
+ ("\\.zone\\'" . dns-mode)
+ ("\\.soa\\'" . dns-mode)
;; Common Lisp ASDF package system.
("\\.asd\\'" . lisp-mode)
("\\.\\(asn\\|mib\\|smi\\)\\'" . snmp-mode)
("#\\*mail\\*" . mail-mode)
("\\.g\\'" . antlr-mode)
("\\.ses\\'" . ses-mode)
- ("\\.\\(soa\\|zone\\)\\'" . dns-mode)
("\\.docbook\\'" . sgml-mode)
("\\.com\\'" . dcl-mode)
("/config\\.\\(?:bat\\|log\\)\\'" . fundamental-mode)
("pg" . text-mode)
("make" . makefile-gmake-mode) ; Debian uses this
("guile" . scheme-mode)
- ("clisp" . lisp-mode)))
+ ("clisp" . lisp-mode)
+ ("emacs" . emacs-lisp-mode)))
"Alist mapping interpreter names to major modes.
This is used for files whose first lines match `auto-mode-interpreter-regexp'.
Each element looks like (INTERPRETER . MODE).
(mapc (lambda (pair)
(put (car pair) 'safe-local-variable (cdr pair)))
- '((buffer-read-only . booleanp) ;; C source code
- (default-directory . stringp) ;; C source code
- (fill-column . integerp) ;; C source code
- (indent-tabs-mode . booleanp) ;; C source code
- (left-margin . integerp) ;; C source code
- (no-update-autoloads . booleanp)
- (tab-width . integerp) ;; C source code
- (truncate-lines . booleanp) ;; C source code
- (word-wrap . booleanp))) ;; C source code
+ '((buffer-read-only . booleanp) ;; C source code
+ (default-directory . stringp) ;; C source code
+ (fill-column . integerp) ;; C source code
+ (indent-tabs-mode . booleanp) ;; C source code
+ (left-margin . integerp) ;; C source code
+ (no-update-autoloads . booleanp)
+ (tab-width . integerp) ;; C source code
+ (truncate-lines . booleanp) ;; C source code
+ (word-wrap . booleanp) ;; C source code
+ (bidi-display-reordering . booleanp))) ;; C source code
+
+(put 'bidi-paragraph-direction 'safe-local-variable
+ (lambda (v) (memq v '(nil right-to-left left-to-right))))
(put 'c-set-style 'safe-local-eval-function t)
;; Otherwise, set the variables.
(enable-local-variables
(hack-local-variables-filter result nil)
- (when file-local-variables-alist
- ;; Any 'evals must run in the Right sequence.
- (setq file-local-variables-alist
- (nreverse file-local-variables-alist))
- (run-hooks 'before-hack-local-variables-hook)
- (dolist (elt file-local-variables-alist)
- (hack-one-local-variable (car elt) (cdr elt))))
- (run-hooks 'hack-local-variables-hook)))))
+ (hack-local-variables-apply)))))
+
+(defun hack-local-variables-apply ()
+ (when file-local-variables-alist
+ ;; Any 'evals must run in the Right sequence.
+ (setq file-local-variables-alist
+ (nreverse file-local-variables-alist))
+ (run-hooks 'before-hack-local-variables-hook)
+ (dolist (elt file-local-variables-alist)
+ (hack-one-local-variable (car elt) (cdr elt))))
+ (run-hooks 'hack-local-variables-hook))
(defun safe-local-variable-p (sym val)
"Non-nil if SYM is safe as a file-local variable with value VAL.
Store the directory-local variables in `dir-local-variables-alist'
and `file-local-variables-alist', without applying them."
(when (and enable-local-variables
- (buffer-file-name)
- (not (file-remote-p (buffer-file-name))))
+ (not (file-remote-p (or (buffer-file-name) default-directory))))
;; Find the variables file.
- (let ((variables-file (dir-locals-find-file (buffer-file-name)))
+ (let ((variables-file (dir-locals-find-file (or (buffer-file-name) default-directory)))
(class nil)
(dir-name nil))
(cond
((stringp variables-file)
- (setq dir-name (file-name-directory (buffer-file-name)))
+ (setq dir-name (if (buffer-file-name) (file-name-directory (buffer-file-name)) default-directory))
(setq class (dir-locals-read-from-file variables-file)))
((consp variables-file)
(setq dir-name (nth 0 variables-file))
(push elt dir-local-variables-alist))
(hack-local-variables-filter variables dir-name)))))))
+(defun hack-dir-local-variables-non-file-buffer ()
+ (hack-dir-local-variables)
+ (hack-local-variables-apply))
+
\f
(defcustom change-major-mode-with-file-name t
"Non-nil means \\[write-file] should set the major mode from the file name.
no longer accessible under its old name.
The value is non-nil after a backup was made by renaming.
-It has the form (MODES . BACKUPNAME).
+It has the form (MODES SELINUXCONTEXT BACKUPNAME).
MODES is the result of `file-modes' on the original
file; this means that the caller, after saving the buffer, should change
the modes of the new file to agree with the old modes.
+SELINUXCONTEXT is the result of `file-selinux-context' on the original
+file; this means that the caller, after saving the buffer, should change
+the SELinux context of the new file to agree with the old context.
BACKUPNAME is the backup file name, which is the old file renamed."
(if (and make-backup-files (not backup-inhibited)
(not buffer-backed-up)
(or delete-old-versions
(y-or-n-p (format "Delete excess backup versions of %s? "
real-file-name)))))
- (modes (file-modes buffer-file-name)))
+ (modes (file-modes buffer-file-name))
+ (context (file-selinux-context buffer-file-name)))
;; Actually write the back up file.
(condition-case ()
(if (or file-precious-flag
(<= (nth 2 attr) backup-by-copying-when-privileged-mismatch)))
(or (nth 9 attr)
(not (file-ownership-preserved-p real-file-name)))))))
- (backup-buffer-copy real-file-name backupname modes)
+ (backup-buffer-copy real-file-name backupname modes context)
;; rename-file should delete old backup.
(rename-file real-file-name backupname t)
- (setq setmodes (cons modes backupname)))
+ (setq setmodes (list modes context backupname)))
(file-error
;; If trouble writing the backup, write it in ~.
(setq backupname (expand-file-name
(message "Cannot write backup file; backing up in %s"
backupname)
(sleep-for 1)
- (backup-buffer-copy real-file-name backupname modes)))
+ (backup-buffer-copy real-file-name backupname modes context)))
(setq buffer-backed-up t)
;; Now delete the old versions, if desired.
(if delete-old-versions
setmodes)
(file-error nil))))))
-(defun backup-buffer-copy (from-name to-name modes)
+(defun backup-buffer-copy (from-name to-name modes context)
(let ((umask (default-file-modes)))
(unwind-protect
(progn
;; Reset the umask.
(set-default-file-modes umask)))
(and modes
- (set-file-modes to-name (logand modes #o1777))))
+ (set-file-modes to-name (logand modes #o1777)))
+ (and context
+ (set-file-selinux-context to-name context)))
(defun file-name-sans-versions (name &optional keep-backup-version)
"Return file NAME sans backup versions or strings.
(nthcdr 10 (file-attributes buffer-file-name)))
(if setmodes
(condition-case ()
- (set-file-modes buffer-file-name (car setmodes))
+ (progn
+ (set-file-modes buffer-file-name (car setmodes))
+ (set-file-selinux-context buffer-file-name (nth 1 setmodes)))
(error nil))))
;; If the auto-save file was recent before this command,
;; delete it now.
;; This does the "real job" of writing a buffer into its visited file
;; and making a backup file. This is what is normally done
;; but inhibited if one of write-file-functions returns non-nil.
-;; It returns a value (MODES . BACKUPNAME), like backup-buffer.
+;; It returns a value (MODES SELINUXCONTEXT BACKUPNAME), like backup-buffer.
(defun basic-save-buffer-1 ()
(prog1
(if save-buffer-coding-system
(setq buffer-file-coding-system-explicit
(cons last-coding-system-used nil)))))
-;; This returns a value (MODES . BACKUPNAME), like backup-buffer.
+;; This returns a value (MODES SELINUXCONTEXT BACKUPNAME), like backup-buffer.
(defun basic-save-buffer-2 ()
(let (tempsetmodes setmodes)
(if (not (file-writable-p buffer-file-name))
;; Since we have created an entirely new file,
;; make sure it gets the right permission bits set.
(setq setmodes (or setmodes
- (cons (or (file-modes buffer-file-name)
+ (list (or (file-modes buffer-file-name)
(logand ?\666 umask))
+ (file-selinux-context buffer-file-name)
buffer-file-name)))
;; We succeeded in writing the temp file,
;; so rename it.
;; (setmodes is set) because that says we're superseding.
(cond ((and tempsetmodes (not setmodes))
;; Change the mode back, after writing.
- (setq setmodes (cons (file-modes buffer-file-name) buffer-file-name))
- (set-file-modes buffer-file-name (logior (car setmodes) 128))))
+ (setq setmodes (list (file-modes buffer-file-name)
+ (file-selinux-context buffer-file-name)
+ buffer-file-name))
+ (set-file-modes buffer-file-name (logior (car setmodes) 128))
+ (set-file-selinux-context buffer-file-name (nth 1 setmodes)))))
(let (success)
(unwind-protect
(progn
;; the backup by renaming, undo the backing-up.
(and setmodes (not success)
(progn
- (rename-file (cdr setmodes) buffer-file-name t)
- (setq buffer-backed-up nil)))))))
+ (rename-file (nth 2 setmodes) buffer-file-name t)
+ (setq buffer-backed-up nil))))))
setmodes))
(defun diff-buffer-with-file (&optional buffer)
(force-mode-line-update))))
(defun make-directory (dir &optional parents)
- "Create the directory DIR and any nonexistent parent dirs.
-If DIR already exists as a directory, signal an error, unless PARENTS is set.
+ "Create the directory DIR and optionally any nonexistent parent dirs.
+If DIR already exists as a directory, signal an error, unless
+PARENTS is non-nil.
-Interactively, the default choice of directory to create
-is the current default directory for file names.
-That is useful when you have visited a file in a nonexistent directory.
+Interactively, the default choice of directory to create is the
+current buffer's default directory. That is useful when you have
+visited a file in a nonexistent directory.
-Noninteractively, the second (optional) argument PARENTS says whether
-to create parent directories if they don't exist. Interactively,
-this happens by default."
+Noninteractively, the second (optional) argument PARENTS, if
+non-nil, says whether to create parent directories that don't
+exist. Interactively, this happens by default."
(interactive
(list (read-file-name "Make directory: " default-directory default-directory
nil nil)
"^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"
"Regexp matching any file name except \".\" and \"..\".")
-(defun delete-directory (directory &optional recursive)
+(defun delete-directory (directory &optional recursive trash)
"Delete the directory named DIRECTORY. Does not follow symlinks.
-If RECURSIVE is non-nil, all files in DIRECTORY are deleted as well."
+If RECURSIVE is non-nil, all files in DIRECTORY are deleted as well.
+TRASH non-nil means to trash the directory instead, provided
+`delete-by-moving-to-trash' is non-nil.
+
+When called interactively, TRASH is t if no prefix argument is
+given. With a prefix argument, TRASH is nil."
(interactive
- (let ((dir (expand-file-name
- (read-file-name
- "Delete directory: "
- default-directory default-directory nil nil))))
+ (let* ((trashing (and delete-by-moving-to-trash
+ (null current-prefix-arg)))
+ (dir (expand-file-name
+ (read-file-name
+ (if trashing
+ "Move directory to trash: "
+ "Delete directory: ")
+ default-directory default-directory nil nil))))
(list dir
(if (directory-files dir nil directory-files-no-dot-files-regexp)
(y-or-n-p
- (format "Directory `%s' is not empty, really delete? " dir))
- nil))))
+ (format "Directory `%s' is not empty, really %s? "
+ dir (if trashing "trash" "delete")))
+ nil)
+ (null current-prefix-arg))))
;; If default-directory is a remote directory, make sure we find its
;; delete-directory handler.
(setq directory (directory-file-name (expand-file-name directory)))
(cond
(handler
(funcall handler 'delete-directory directory recursive))
- (delete-by-moving-to-trash
+ ((and delete-by-moving-to-trash trash)
;; Only move non-empty dir to trash if recursive deletion was
;; requested. This mimics the non-`delete-by-moving-to-trash'
;; case, where the operation fails in delete-directory-internal.
;; (and (file-directory-p fn) (not (file-symlink-p fn)))
;; but more efficient
(if (eq t (car (file-attributes file)))
- (delete-directory file recursive)
- (delete-file file)))
+ (delete-directory file recursive nil)
+ (delete-file file nil)))
;; We do not want to delete "." and "..".
(directory-files
directory 'full directory-files-no-dot-files-regexp)))
(kill-buffer-ask buffer)))))
\f
-(defun auto-save-mode (arg)
- "Toggle auto-saving of contents of current buffer.
-With prefix argument ARG, turn auto-saving on if positive, else off."
- (interactive "P")
- (setq buffer-auto-save-file-name
- (and (if (null arg)
- (or (not buffer-auto-save-file-name)
- ;; If auto-save is off because buffer has shrunk,
- ;; then toggling should turn it on.
- (< buffer-saved-size 0))
- (or (eq arg t) (listp arg) (and (integerp arg) (> arg 0))))
- (if (and buffer-file-name auto-save-visited-file-name
- (not buffer-read-only))
- buffer-file-name
- (make-auto-save-file-name))))
- ;; If -1 was stored here, to temporarily turn off saving,
- ;; turn it back on.
- (and (< buffer-saved-size 0)
- (setq buffer-saved-size 0))
- (if (called-interactively-p 'interactive)
- (message "Auto-save %s (in this buffer)"
- (if buffer-auto-save-file-name "on" "off")))
- buffer-auto-save-file-name)
-
(defun rename-auto-save-file ()
"Adjust current buffer's auto save file name for current conditions.
Also rename any existing auto save file, if it was made in this session."
(defun get-free-disk-space (dir)
"Return the amount of free space on directory DIR's file system.
-The result is a string that gives the number of free 1KB blocks,
-or nil if the system call or the program which retrieve the information
-fail. It returns also nil when DIR is a remote directory.
-
-This function calls `file-system-info' if it is available, or invokes the
-program specified by `directory-free-space-program' if that is non-nil."
+The return value is a string describing the amount of free
+space (normally, the number of free 1KB blocks).
+
+This function calls `file-system-info' if it is available, or
+invokes the program specified by `directory-free-space-program'
+and `directory-free-space-args'. If the system call or program
+is unsuccessful, or if DIR is a remote directory, this function
+returns nil."
(unless (file-remote-p dir)
;; Try to find the number of free blocks. Non-Posix systems don't
;; always have df, but might have an equivalent system call.
directory-free-space-args
dir)
0)))
- ;; Usual format is a header line followed by a line of
- ;; numbers.
+ ;; Assume that the "available" column is before the
+ ;; "capacity" column. Find the "%" and scan backward.
(goto-char (point-min))
(forward-line 1)
- (if (not (eobp))
- (progn
- ;; Move to the end of the "available blocks" number.
- (skip-chars-forward "^ \t")
- (forward-word 3)
- ;; Copy it into AVAILABLE.
- (let ((end (point)))
- (forward-word -1)
- (buffer-substring (point) end))))))))))
+ (when (re-search-forward
+ "[[:space:]]+[^[:space:]]+%[^%]*$"
+ (line-end-position) t)
+ (goto-char (match-beginning 0))
+ (let ((endpt (point)))
+ (skip-chars-backward "^[:space:]")
+ (buffer-substring-no-properties (point) endpt)))))))))
;; The following expression replaces `dired-move-to-filename-regexp'.
(defvar directory-listing-before-filename-regexp
(define-key ctl-x-5-map "r" 'find-file-read-only-other-frame)
(define-key ctl-x-5-map "\C-o" 'display-buffer-other-frame)
-;; arch-tag: bc68d3ea-19ca-468b-aac6-3a4a7766101f
;;; files.el ends here