;;; files.el --- file input and output commands for Emacs -*- lexical-binding:t -*-
-;; Copyright (C) 1985-1987, 1992-2015 Free Software Foundation, Inc.
+;; Copyright (C) 1985-1987, 1992-2016 Free Software Foundation, Inc.
;; Maintainer: emacs-devel@gnu.org
;; Package: emacs
(error "No such directory found via CDPATH environment variable"))))
(defsubst directory-name-p (name)
- "Return non-nil if NAME ends with a slash character."
- (and (> (length name) 0)
- (char-equal (aref name (1- (length name))) ?/)))
-
-(defun directory-files-recursively (dir match &optional include-directories)
- "Return all files under DIR that have file names matching MATCH (a regexp).
+ "Return non-nil if NAME ends with a directory separator character."
+ (let ((len (length name))
+ (lastc ?.))
+ (if (> len 0)
+ (setq lastc (aref name (1- len))))
+ (or (= lastc ?/)
+ (and (memq system-type '(windows-nt ms-dos))
+ (= lastc ?\\)))))
+
+(defun directory-files-recursively (dir regexp &optional include-directories)
+ "Return list of all files under DIR that have file names matching REGEXP.
This function works recursively. Files are returned in \"depth first\"
-and alphabetical order.
-If INCLUDE-DIRECTORIES, also include directories that have matching names."
+order, and files from each directory are sorted in alphabetical order.
+Each file name appears in the returned list in its absolute form.
+Optional argument INCLUDE-DIRECTORIES non-nil means also include in the
+output directories whose names match REGEXP."
(let ((result nil)
(files nil)
;; When DIR is "/", remote file names like "/method:" could
;; also be offered. We shall suppress them.
- (tramp-mode (and tramp-mode (file-remote-p dir))))
+ (tramp-mode (and tramp-mode (file-remote-p (expand-file-name dir)))))
(dolist (file (sort (file-name-all-completions "" dir)
'string<))
(unless (member file '("./" "../"))
(unless (file-symlink-p full-file)
(setq result
(nconc result (directory-files-recursively
- full-file match include-directories))))
+ full-file regexp include-directories))))
(when (and include-directories
- (string-match match leaf))
+ (string-match regexp leaf))
(setq result (nconc result (list full-file)))))
- (when (string-match match file)
+ (when (string-match regexp file)
(push (expand-file-name file dir) files)))))
(nconc result (nreverse files))))
+(defvar module-file-suffix)
+
(defun load-file (file)
"Load the Lisp file named FILE."
- ;; This is a case where .elc makes a lot of sense.
+ ;; This is a case where .elc and .so/.dll make a lot of sense.
(interactive (list (let ((completion-ignored-extensions
- (remove ".elc" completion-ignored-extensions)))
+ (remove module-file-suffix
+ (remove ".elc"
+ completion-ignored-extensions))))
(read-file-name "Load file: " nil nil 'lambda))))
(load (expand-file-name file) nil nil t))
PATH should be a list of directories to look in, like the lists in
`exec-path' or `load-path'.
If SUFFIXES is non-nil, it should be a list of suffixes to append to
-file name when searching. If SUFFIXES is nil, it is equivalent to '(\"\").
-Use '(\"/\") to disable PATH search, but still try the suffixes in SUFFIXES.
+file name when searching. If SUFFIXES is nil, it is equivalent to (\"\").
+Use (\"/\") to disable PATH search, but still try the suffixes in SUFFIXES.
If non-nil, PREDICATE is used instead of `file-readable-p'.
This function will normally skip directories, so if you want it to find
(put 'user-emacs-directory-warning 'this-session t)
(display-warning 'initialization
(format "\
-Unable to %s ‘user-emacs-directory’ (%s).
+Unable to %s `user-emacs-directory' (%s).
Any data that would normally be written there may be lost!
If you never want to see this message again,
-customize the variable ‘user-emacs-directory-warning’."
+customize the variable `user-emacs-directory-warning'."
errtype user-emacs-directory)))))
bestname))))
(defun load-library (library)
"Load the Emacs Lisp library named LIBRARY.
+LIBRARY should be a string.
This is an interface to the function `load'. LIBRARY is searched
for in `load-path', both with and without `load-suffixes' (as
well as `load-file-rep-suffixes').
See Info node `(emacs)Lisp Libraries' for more details.
See `load-file' for a different interface to `load'."
(interactive
- (list (completing-read "Load library: "
- (apply-partially 'locate-file-completion-table
- load-path
- (get-load-suffixes)))))
+ (let (completion-ignored-extensions)
+ (list (completing-read "Load library: "
+ (apply-partially 'locate-file-completion-table
+ load-path
+ (get-load-suffixes))))))
(load library))
(defun file-remote-p (file &optional identification connected)
to derive a new remote file name from an existing one. For
example, if FILE is \"/sudo::/path/to/file\" then
- \(concat \(file-remote-p FILE) \"/bin/sh\")
+ (concat (file-remote-p FILE) \"/bin/sh\")
returns a remote file name for file \"/bin/sh\" that has the
same remote identifier as FILE but expanded; a name such as
(defmacro minibuffer-with-setup-hook (fun &rest body)
"Temporarily add FUN to `minibuffer-setup-hook' while executing BODY.
-FUN can also be (:append FUN1), in which case FUN1 is appended to
-`minibuffer-setup-hook'.
+
+By default, FUN is prepended to `minibuffer-setup-hook'. But if FUN is of
+the form `(:append FUN1)', FUN1 will be appended to `minibuffer-setup-hook'
+instead of prepending it.
BODY should use the minibuffer at most once.
Recursive uses of the minibuffer are unaffected (FUN is not
(user-error "Aborted"))
(and (buffer-modified-p) buffer-file-name
(not (yes-or-no-p
- (format "Kill and replace buffer ‘%s’ without saving it? "
- (buffer-name))))
+ (format-message "Kill and replace buffer `%s' without saving it? "
+ (buffer-name))))
(user-error "Aborted"))
(let ((obuf (current-buffer))
(ofile buffer-file-name)
\f
(defun insert-file-contents-literally (filename &optional visit beg end replace)
"Like `insert-file-contents', but only reads in the file literally.
+See `insert-file-contents' for an explanation of the parameters.
A buffer may be modified in several ways after reading into the buffer,
due to Emacs features such as format decoding, character code
conversion, `find-file-hook', automatic uncompression, etc.
(view-mode-enter))
(run-hooks 'find-file-hook)))
-(defmacro report-errors (format &rest body)
- "Eval BODY and turn any error into a FORMAT message.
-FORMAT can have a %s escape which will be replaced with the actual error.
-If `debug-on-error' is set, errors are not caught, so that you can
-debug them.
-Avoid using a large BODY since it is duplicated."
- (declare (debug t) (indent 1))
- `(if debug-on-error
- (progn . ,body)
- (condition-case err
- (progn . ,body)
- (error (message ,format (prin1-to-string err))))))
+(define-obsolete-function-alias 'report-errors 'with-demoted-errors "25.1")
(defun normal-mode (&optional find-file)
"Choose the major mode for this buffer automatically.
or from Lisp without specifying the optional argument FIND-FILE;
in that case, this function acts as if `enable-local-variables' were t."
(interactive)
- (fundamental-mode)
+ (kill-all-local-variables)
+ (unless delay-mode-hooks
+ (run-hooks 'change-major-mode-after-body-hook
+ 'after-change-major-mode-hook))
(let ((enable-local-variables (or (not find-file) enable-local-variables)))
;; FIXME this is less efficient than it could be, since both
;; s-a-m and h-l-v may parse the same regions, looking for "mode:".
- (report-errors "File mode specification error: %s"
+ (with-demoted-errors "File mode specification error: %s"
(set-auto-mode))
- (report-errors "File local-variables error: %s"
- (hack-local-variables)))
+ ;; `delay-mode-hooks' being non-nil will have prevented the major
+ ;; mode's call to `run-mode-hooks' from calling
+ ;; `hack-local-variables'. In that case, call it now.
+ (when delay-mode-hooks
+ (with-demoted-errors "File local-variables error: %s"
+ (hack-local-variables 'no-mode))))
;; Turn font lock off and on, to make sure it takes account of
;; whatever file local variables are relevant to it.
(when (and font-lock-mode
(catch 'nop
(dolist (mode (nreverse modes))
(if (not (functionp mode))
- (message "Ignoring unknown mode ‘%s’" mode)
+ (message "Ignoring unknown mode `%s'" mode)
(setq done t)
(or (set-auto-mode-0 mode keep-mode-if-same)
;; continuing would call minor modes again, toggling them off
(setq mode (hack-local-variables t))
(not (memq mode modes)) ; already tried and failed
(if (not (functionp mode))
- (message "Ignoring unknown mode ‘%s’" mode)
+ (message "Ignoring unknown mode `%s'" mode)
(setq done t)
(set-auto-mode-0 mode keep-mode-if-same)))
;; If we didn't, look for an interpreter specified in the first line.
;; TODO? Warn once per file rather than once per session?
(defvar hack-local-variables--warned-lexical nil)
-(defun hack-local-variables (&optional mode-only)
+(defun hack-local-variables (&optional handle-mode)
"Parse and put into effect this buffer's local variables spec.
Uses `hack-local-variables-apply' to apply the variables.
-If MODE-ONLY is non-nil, all we do is check whether a \"mode:\"
+If HANDLE-MODE is nil, we apply all the specified local
+variables. If HANDLE-MODE is neither nil nor t, we do the same,
+except that any settings of `mode' are ignored.
+
+If HANDLE-MODE is t, all we do is check whether a \"mode:\"
is specified, and return the corresponding mode symbol, or nil.
In this case, we try to ignore minor-modes, and only return a
major-mode.
(let ((enable-local-variables
(and local-enable-local-variables enable-local-variables))
result)
- (unless mode-only
+ (unless (eq handle-mode t)
(setq file-local-variables-alist nil)
- (report-errors "Directory-local variables error: %s"
+ (with-demoted-errors "Directory-local variables error: %s"
;; Note this is a no-op if enable-local-variables is nil.
(hack-dir-local-variables)))
;; This entire function is basically a no-op if enable-local-variables
;; is nil. All it does is set file-local-variables-alist to nil.
(when enable-local-variables
- ;; This part used to ignore enable-local-variables when mode-only
- ;; was non-nil. That was inappropriate, eg consider the
+ ;; This part used to ignore enable-local-variables when handle-mode
+ ;; was t. That was inappropriate, eg consider the
;; (artificial) example of:
;; (setq local-enable-local-variables nil)
;; Open a file foo.txt that contains "mode: sh".
;; It correctly opens in text-mode.
;; M-x set-visited-file name foo.c, and it incorrectly stays in text-mode.
(unless (or (inhibit-local-variables-p)
- ;; If MODE-ONLY is non-nil, and the prop line specifies a
+ ;; If HANDLE-MODE is t, and the prop line specifies a
;; mode, then we're done, and have no need to scan further.
- (and (setq result (hack-local-variables-prop-line mode-only))
- mode-only))
+ (and (setq result (hack-local-variables-prop-line
+ (eq handle-mode t)))
+ (eq handle-mode t)))
;; Look for "Local variables:" line in last page.
(save-excursion
(goto-char (point-max))
(goto-char (point-min))
(while (not (or (eobp)
- (and mode-only result)))
+ (and (eq handle-mode t) result)))
;; Find the variable name;
(unless (looking-at hack-local-variable-regexp)
(error "Malformed local variable line: %S"
(forward-char 1)
(let ((read-circle nil))
(setq val (read (current-buffer))))
- (if mode-only
+ (if (eq handle-mode t)
(and (eq var 'mode)
;; Specifying minor-modes via mode: is
;; deprecated, but try to reject them anyway.
(unless hack-local-variables--warned-lexical
(setq hack-local-variables--warned-lexical t)
(display-warning
- :warning
- (format "%s: ‘lexical-binding’ at end of file unreliable"
- (file-name-nondirectory
- (or buffer-file-name ""))))))
+ 'files
+ (format-message
+ "%s: `lexical-binding' at end of file unreliable"
+ (file-name-nondirectory
+ ;; We are called from
+ ;; 'with-temp-buffer', so we need
+ ;; to use 'thisbuf's name in the
+ ;; warning message.
+ (or (buffer-file-name thisbuf) ""))))))
+ ((and (eq var 'mode) handle-mode))
(t
(ignore-errors
(push (cons (if (eq var 'eval)
val) result))))))
(forward-line 1))))))))
;; Now we've read all the local variables.
- ;; If MODE-ONLY is non-nil, return whether the mode was specified.
- (if mode-only result
+ ;; If HANDLE-MODE is t, return whether the mode was specified.
+ (if (eq handle-mode t) result
;; Otherwise, set the variables.
(hack-local-variables-filter result nil)
(hack-local-variables-apply)))))
var (if since (format " (since %s)" since))
(if (stringp instead)
(substitute-command-keys instead)
- (format "use ‘%s’ instead" instead)))))))
+ (format-message "use `%s' instead" instead)))))))
(defun hack-one-local-variable (var val)
"Set local variable VAR with value VAL.
(error
;; The file's content might be invalid (e.g. have a merge conflict), but
;; that shouldn't prevent the user from opening the file.
- (message ".dir-locals error: %s" (error-message-string err))
+ (message "%s error: %s" dir-locals-file (error-message-string err))
nil))))
(defun dir-locals-set-directory-class (directory class &optional mtime)
for a class are defined using `dir-locals-set-class-variables'."
(setq directory (file-name-as-directory (expand-file-name directory)))
(unless (assq class dir-locals-class-alist)
- (error "No such class ‘%s’" (symbol-name class)))
+ (error "No such class `%s'" (symbol-name class)))
(push (list directory class mtime) dir-locals-directory-cache))
(defun dir-locals-set-class-variables (class variables)
(defconst dir-locals-file ".dir-locals.el"
"File that contains directory-local variables.
-It has to be constant to enforce uniform values
-across different environments and users.")
+It has to be constant to enforce uniform values across different
+environments and users.
+See also `dir-locals-file-2', whose values override this one's.
+See Info node `(elisp)Directory Local Variables' for details.")
+
+(defconst dir-locals-file-2 ".dir-locals-2.el"
+ "File that contains directory-local variables.
+This essentially a second file that can be used like
+`dir-locals-file', so that users can have specify their personal
+dir-local variables even if the current directory already has a
+`dir-locals-file' that is shared with other users (such as in a
+git repository).
+See Info node `(elisp)Directory Local Variables' for details.")
+
+(defun dir-locals--all-files (directory)
+ "Return a list of all readable dir-locals files in DIRECTORY.
+The returned list is sorted by increasing priority. That is,
+values specified in the last file should take precedence over
+those in the first."
+ (when (file-readable-p directory)
+ (let* ((file-1 (expand-file-name (if (eq system-type 'ms-dos)
+ (dosified-file-name dir-locals-file)
+ dir-locals-file)
+ directory))
+ (file-2 (when (string-match "\\.el\\'" file-1)
+ (replace-match "-2.el" t nil file-1)))
+ (out nil))
+ ;; The order here is important.
+ (dolist (f (list file-2 file-1))
+ (when (and f
+ (file-readable-p f)
+ (file-regular-p f)
+ (not (file-directory-p f)))
+ (push f out)))
+ out)))
(defun dir-locals-find-file (file)
"Find the directory-local variables for FILE.
time stored in the cache matches the current file modification time.
If not, the cache entry is cleared so that the file will be re-read.
-This function returns either nil (no directory local variables found),
-or the matching entry from `dir-locals-directory-cache' (a list),
-or the full path to the `dir-locals-file' (a string) in the case
-of no valid cache entry."
+This function returns either:
+ - nil (no directory local variables found),
+ - the matching entry from `dir-locals-directory-cache' (a list),
+ - or the full path to the directory (a string) containing at
+ least one `dir-locals-file' in the case of no valid cache
+ entry."
(setq file (expand-file-name file))
- (let* ((dir-locals-file-name
- (if (eq system-type 'ms-dos)
- (dosified-file-name dir-locals-file)
- dir-locals-file))
- (locals-file (locate-dominating-file file dir-locals-file-name))
- (dir-elt nil))
+ (let* ((locals-dir (locate-dominating-file (file-name-directory file)
+ #'dir-locals--all-files))
+ dir-elt)
;; `locate-dominating-file' may have abbreviated the name.
- (and locals-file
- (setq locals-file (expand-file-name dir-locals-file-name locals-file)))
- ;; Let dir-locals-read-from-file inform us via demoted-errors
- ;; about unreadable files, etc.
- ;; Maybe we'd want to keep searching though - that is
- ;; a locate-dominating-file issue.
-;;; (or (not (file-readable-p locals-file))
-;;; (not (file-regular-p locals-file)))
-;;; (setq locals-file nil))
+ (when locals-dir
+ (setq locals-dir (expand-file-name locals-dir)))
;; Find the best cached value in `dir-locals-directory-cache'.
(dolist (elt dir-locals-directory-cache)
(when (and (string-prefix-p (car elt) file
- (memq system-type
- '(windows-nt cygwin ms-dos)))
- (> (length (car elt)) (length (car dir-elt))))
- (setq dir-elt elt)))
+ (memq system-type
+ '(windows-nt cygwin ms-dos)))
+ (> (length (car elt)) (length (car dir-elt))))
+ (setq dir-elt elt)))
(if (and dir-elt
- (or (null locals-file)
- (<= (length (file-name-directory locals-file))
- (length (car dir-elt)))))
- ;; Found a potential cache entry. Check validity.
- ;; A cache entry with no MTIME is assumed to always be valid
- ;; (ie, set directly, not from a dir-locals file).
- ;; Note, we don't bother to check that there is a matching class
- ;; element in dir-locals-class-alist, since that's done by
- ;; dir-locals-set-directory-class.
- (if (or (null (nth 2 dir-elt))
- (let ((cached-file (expand-file-name dir-locals-file-name
- (car dir-elt))))
- (and (file-readable-p cached-file)
- (equal (nth 2 dir-elt)
- (nth 5 (file-attributes cached-file))))))
- ;; This cache entry is OK.
- dir-elt
- ;; This cache entry is invalid; clear it.
- (setq dir-locals-directory-cache
- (delq dir-elt dir-locals-directory-cache))
- ;; Return the first existing dir-locals file. Might be the same
- ;; as dir-elt's, might not (eg latter might have been deleted).
- locals-file)
+ (or (null locals-dir)
+ (<= (length locals-dir)
+ (length (car dir-elt)))))
+ ;; Found a potential cache entry. Check validity.
+ ;; A cache entry with no MTIME is assumed to always be valid
+ ;; (ie, set directly, not from a dir-locals file).
+ ;; Note, we don't bother to check that there is a matching class
+ ;; element in dir-locals-class-alist, since that's done by
+ ;; dir-locals-set-directory-class.
+ (if (or (null (nth 2 dir-elt))
+ (let ((cached-files (dir-locals--all-files (car dir-elt))))
+ ;; The entry MTIME should match the most recent
+ ;; MTIME among matching files.
+ (and cached-files
+ (= (float-time (nth 2 dir-elt))
+ (apply #'max (mapcar (lambda (f)
+ (float-time
+ (nth 5 (file-attributes f))))
+ cached-files))))))
+ ;; This cache entry is OK.
+ dir-elt
+ ;; This cache entry is invalid; clear it.
+ (setq dir-locals-directory-cache
+ (delq dir-elt dir-locals-directory-cache))
+ ;; Return the first existing dir-locals file. Might be the same
+ ;; as dir-elt's, might not (eg latter might have been deleted).
+ locals-dir)
;; No cache entry.
- locals-file)))
-
-(defun dir-locals-read-from-file (file)
- "Load a variables FILE and register a new class and instance.
-FILE is the name of the file holding the variables to apply.
-The new class name is the same as the directory in which FILE
-is found. Returns the new class name."
- (with-temp-buffer
+ locals-dir)))
+
+(defun dir-locals-read-from-dir (dir)
+ "Load all variables files in DIR and register a new class and instance.
+DIR is the absolute name of a directory which must contain at
+least one dir-local file (which is a file holding variables to
+apply).
+Return the new class name, which is a symbol named DIR."
+ (require 'map)
+ (let* ((class-name (intern dir))
+ (files (dir-locals--all-files dir))
+ (read-circle nil)
+ (success nil)
+ (variables))
(with-demoted-errors "Error reading dir-locals: %S"
- (insert-file-contents file)
- (unless (zerop (buffer-size))
- (let* ((dir-name (file-name-directory file))
- (class-name (intern dir-name))
- (variables (let ((read-circle nil))
- (read (current-buffer)))))
- (dir-locals-set-class-variables class-name variables)
- (dir-locals-set-directory-class dir-name class-name
- (nth 5 (file-attributes file)))
- class-name)))))
+ (dolist (file files)
+ (with-temp-buffer
+ (insert-file-contents file)
+ (condition-case-unless-debug nil
+ (setq variables
+ (map-merge-with 'list (lambda (a b) (map-merge 'list a b))
+ variables
+ (read (current-buffer))))
+ (end-of-file nil))))
+ (setq success t))
+ (dir-locals-set-class-variables class-name variables)
+ (dir-locals-set-directory-class
+ dir class-name
+ (seconds-to-time
+ (if success
+ (apply #'max (mapcar (lambda (file)
+ (float-time (nth 5 (file-attributes file))))
+ files))
+ ;; If there was a problem, use the values we could get but
+ ;; don't let the cache prevent future reads.
+ 0)))
+ class-name))
+
+(define-obsolete-function-alias 'dir-locals-read-from-file
+ 'dir-locals-read-from-dir "25.1")
(defcustom enable-remote-dir-locals nil
"Non-nil means dir-local variables will be applied to remote files."
(not (file-remote-p (or (buffer-file-name)
default-directory)))))
;; Find the variables file.
- (let ((variables-file (dir-locals-find-file
- (or (buffer-file-name) default-directory)))
+ (let ((dir-or-cache (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 variables-file)
- class (dir-locals-read-from-file variables-file)))
- ((consp variables-file)
- (setq dir-name (nth 0 variables-file))
- (setq class (nth 1 variables-file))))
+ ((stringp dir-or-cache)
+ (setq dir-name dir-or-cache
+ class (dir-locals-read-from-dir dir-or-cache)))
+ ((consp dir-or-cache)
+ (setq dir-name (nth 0 dir-or-cache))
+ (setq class (nth 1 dir-or-cache))))
(when class
(let ((variables
(dir-locals-collect-variables
(if (eq (car elt) 'coding)
(unless hack-dir-local-variables--warned-coding
(setq hack-dir-local-variables--warned-coding t)
- (display-warning :warning
+ (display-warning 'files
"Coding cannot be specified by dir-locals"))
(unless (memq (car elt) '(eval mode))
(setq dir-local-variables-alist
However, the mode will not be changed if
\(1) a local variables list or the `-*-' line specifies a major mode, or
\(2) the current major mode is a \"special\" mode,
-\ not suitable for ordinary files, or
+ not suitable for ordinary files, or
\(3) the new file name does not particularly specify any mode."
:type 'boolean
:group 'editing-basics)
(not (and (eq (framep-on-display) 'ns)
(listp last-nonmenu-event)
use-dialog-box))
- (or (y-or-n-p (format "File ‘%s’ exists; overwrite? " filename))
+ (or (y-or-n-p (format-message
+ "File `%s' exists; overwrite? " filename))
(user-error "Canceled")))
(set-visited-file-name filename (not confirm))))
(set-buffer-modified-p t)
(save-buffer)
;; It's likely that the VC status at the new location is different from
;; the one at the old location.
- (vc-find-file-hook))
+ (vc-refresh-state))
\f
(defun file-extended-attributes (filename)
"Return an alist of extended attributes of file FILENAME.
"Set extended attributes of file FILENAME to ATTRIBUTES.
ATTRIBUTES must be an alist of file attributes as returned by
-`file-extended-attributes'."
- (dolist (elt attributes)
- (let ((attr (car elt))
- (val (cdr elt)))
- (cond ((eq attr 'acl)
- (set-file-acl filename val))
- ((eq attr 'selinux-context)
- (set-file-selinux-context filename val))))))
+`file-extended-attributes'.
+Value is t if the function succeeds in setting the attributes."
+ (let (result rv)
+ (dolist (elt attributes)
+ (let ((attr (car elt))
+ (val (cdr elt)))
+ (cond ((eq attr 'acl)
+ (setq rv (set-file-acl filename val)))
+ ((eq attr 'selinux-context)
+ (setq rv (set-file-selinux-context filename val))))
+ (setq result (or result rv))))
+
+ result))
\f
(defun backup-buffer ()
"Make a backup of the disk file visited by the current buffer, if appropriate.
(defun file-name-sans-extension (filename)
"Return FILENAME sans final \"extension\".
-The extension, in a file name, is the part that follows the last `.',
-except that a leading `.', if any, doesn't count."
+The extension, in a file name, is the part that begins with the last `.',
+except that a leading `.' of the file name, if there is one, doesn't count."
(save-match-data
(let ((file (file-name-sans-versions (file-name-nondirectory filename)))
directory)
(defun file-name-extension (filename &optional period)
"Return FILENAME's final \"extension\".
-The extension, in a file name, is the part that follows the last `.',
-excluding version numbers and backup suffixes,
-except that a leading `.', if any, doesn't count.
+The extension, in a file name, is the part that begins with the last `.',
+excluding version numbers and backup suffixes, except that a leading `.'
+of the file name, if there is one, doesn't count.
Return nil for extensionless file names such as `foo'.
Return the empty string for file names such as `foo.'.
-If PERIOD is non-nil, then the returned value includes the period
-that delimits the extension, and if FILENAME has no extension,
-the value is \"\"."
+By default, the returned value excludes the period that starts the
+extension, but if the optional argument PERIOD is non-nil, the period
+is included in the value, and in that case, if FILENAME has no
+extension, the value is \"\"."
(save-match-data
(let ((file (file-name-sans-versions (file-name-nondirectory filename))))
(if (and (string-match "\\.[^.]*\\'" file)
;; Signal an error if the user specified the name of an
;; existing directory.
(error "%s is a directory" filename)
- (unless (y-or-n-p (format "File ‘%s’ exists; overwrite? "
- filename))
+ (unless (y-or-n-p (format-message
+ "File `%s' exists; overwrite? "
+ filename))
(error "Canceled"))))
(set-visited-file-name filename)))
(or (verify-visited-file-modtime (current-buffer))
(expand-file-name buffer-file-name))))
(unless (file-exists-p dir)
(if (y-or-n-p
- (format "Directory ‘%s’ does not exist; create? " dir))
+ (format-message
+ "Directory `%s' does not exist; create? " dir))
(make-directory dir t)
(error "Canceled")))
(setq setmodes (basic-save-buffer-1))))
\f
(defun clear-visited-file-modtime ()
"Clear out records of last mod time of visited file.
-Next attempt to save will certainly not complain of a discrepancy."
+Next attempt to save will not complain of a discrepancy."
(set-visited-file-modtime 0))
(defun not-modified (&optional arg)
(list dir
(if (directory-files dir nil directory-files-no-dot-files-regexp)
(y-or-n-p
- (format "Directory ‘%s’ is not empty, really %s? "
- dir (if trashing "trash" "delete")))
+ (format-message "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
default-directory default-directory nil nil)
current-prefix-arg t nil)))
(when (file-in-directory-p newname directory)
- (error "Cannot copy ‘%s’ into its subdirectory ‘%s’"
+ (error "Cannot copy `%s' into its subdirectory `%s'"
directory newname))
;; If default-directory is a remote directory, make sure we find its
;; copy-directory handler.
Then you'll be asked about a number of files to recover."
(interactive)
(if (null auto-save-list-file-prefix)
- (error "You set ‘auto-save-list-file-prefix’ to disable making session files"))
+ (error "You set `auto-save-list-file-prefix' to disable making session files"))
(let ((dir (file-name-directory auto-save-list-file-prefix))
(nd (file-name-nondirectory auto-save-list-file-prefix)))
(unless (file-directory-p dir)
(condition-case nil
(save-excursion (recover-file file))
(error
- "Failed to recover ‘%s’" file)))
+ "Failed to recover `%s'" file)))
files
'("file" "files" "recover"))
(message "No files can be recovered from this session now")))
(defun file-expand-wildcards (pattern &optional full)
"Expand wildcard pattern PATTERN.
This returns a list of file names which match the pattern.
+Files are sorted in `string<' order.
If PATTERN is written as an absolute file name,
the values are absolute also.
PATTERN is assumed to represent a file-name wildcard suitable for the
underlying filesystem. For Unix and GNU/Linux, each character from the
-set [ \\t\\n;<>&|()`'\"#$] is quoted with a backslash; for DOS/Windows, all
+set [ \\t\\n;<>&|()\\=`\\='\"#$] is quoted with a backslash; for DOS/Windows, all
the parts of the pattern which don't include wildcard characters are
quoted with double quotes.
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)
+ (unless (file-remote-p (expand-file-name dir))
;; Try to find the number of free blocks. Non-Posix systems don't
;; always have df, but might have an equivalent system call.
(if (fboundp 'file-system-info)
file result)
;; Unix. Access the file to get a suitable error.
(access-file file "Reading directory")
- (error "Listing directory failed but ‘access-file’ worked")))
+ (error "Listing directory failed but `access-file' worked")))
(when (if (stringp switches)
(string-match "--dired\\>" switches)
(setq error-lines (nreverse error-lines))
;; Now read the numeric positions of file names.
(goto-char linebeg)
- (forward-word 1)
+ (forward-word-strictly 1)
(forward-char 3)
(while (< (point) end)
(let ((start (insert-directory-adj-pos
;; Simulate the message printed by `ls'.
(insert (format "%s: No such file or directory\n" file))))
-(defvar kill-emacs-query-functions nil
+(defcustom kill-emacs-query-functions nil
"Functions to call with no arguments to query about killing Emacs.
If any of these functions returns nil, killing Emacs is canceled.
`save-buffers-kill-emacs' calls these functions, but `kill-emacs',
-the low level primitive, does not. See also `kill-emacs-hook'.")
+the low level primitive, does not. See also `kill-emacs-hook'."
+ :type 'hook
+ :version "25.2"
+ :group 'convenience)
(defcustom confirm-kill-emacs nil
"How to ask for confirmation when leaving Emacs.
(defun save-buffers-kill-terminal (&optional arg)
"Offer to save each buffer, then kill the current connection.
-If the current frame has no client, kill Emacs itself.
+If the current frame has no client, kill Emacs itself using
+`save-buffers-kill-emacs'.
With prefix ARG, silently save all file-visiting buffers, then kill.
((= char ?g) #o2070)
((= char ?o) #o1007)
((= char ?a) #o7777)
- (t (error "%c: bad ‘who’ character" char))))
+ (t (error "%c: bad `who' character" char))))
(defun file-modes-char-to-right (char &optional from)
"Convert CHAR to a numeric value of mode bits.
(cond ((= char ?r) #o0444)
((= char ?w) #o0222)
((= char ?x) #o0111)
- ((= char ?s) #o1000)
- ((= char ?t) #o6000)
+ ((= char ?s) #o6000)
+ ((= char ?t) #o1000)
;; Rights relative to the previous file modes.
((= char ?X) (if (= (logand from #o111) 0) 0 #o0111))
((= char ?u) (let ((uright (logand #o4700 from)))
(mapcar 'file-modes-char-to-who
(match-string 1 modes)))))
(when (= num-who 0)
- (setq num-who (default-file-modes)))
+ (setq num-who (logior #o7000 (default-file-modes))))
(setq num-modes
(file-modes-rights-to-number (substring modes (match-end 1))
num-who num-modes)
modes (substring modes (match-end 3))))
- (error "Parse error in modes near ‘%s’" (substring modes 0))))
+ (error "Parse error in modes near `%s'" (substring modes 0))))
num-modes)))
(defun read-file-modes (&optional prompt orig-file)
"Read file modes in octal or symbolic notation and return its numeric value.
-PROMPT is used as the prompt, default to `File modes (octal or symbolic): '.
+PROMPT is used as the prompt, default to \"File modes (octal or symbolic): \".
ORIG-FILE is the name of a file on whose mode bits to base returned
permissions if what user types requests to add, remove, or set permissions
based on existing mode bits, as in \"og+rX-w\"."
trash-dir)))
;; We can't trash a parent directory of trash-directory.
(if (string-prefix-p fn trash-dir)
- (error "Trash directory ‘%s’ is a subdirectory of ‘%s’"
+ (error "Trash directory `%s' is a subdirectory of `%s'"
trash-dir filename))
(unless (file-directory-p trash-dir)
(make-directory trash-dir t))
(let ((delete-by-moving-to-trash nil))
(rename-file fn new-fn)))))))))
+(defsubst file-attribute-type (attributes)
+ "The type field in ATTRIBUTES returned by `file-attribute'.
+The value is either t for directory, string (name linked to) for
+symbolic link, or nil."
+ (nth 0 attributes))
+
+(defsubst file-attribute-link-number (attributes)
+ "Return the number of links in ATTRIBUTES returned by `file-attribute'."
+ (nth 1 attributes))
+
+(defsubst file-attribute-user-id (attributes)
+ "The UID field in ATTRIBUTES returned by `file-attribute'.
+This is either a string or a number. If a string value cannot be
+looked up, a numeric value, either an integer or a float, is
+returned."
+ (nth 2 attributes))
+
+(defsubst file-attribute-group-id (attributes)
+ "The GID field in ATTRIBUTES returned by `file-attribute'.
+This is either a string or a number. If a string value cannot be
+looked up, a numeric value, either an integer or a float, is
+returned."
+ (nth 3 attributes))
+
+(defsubst file-attribute-access-time (attributes)
+ "The last access time in ATTRIBUTES returned by `file-attribute'.
+This a list of integers (HIGH LOW USEC PSEC) in the same style
+as (current-time)."
+ (nth 4 attributes))
+
+(defsubst file-attribute-modification-time (attributes)
+ "The modification time in ATTRIBUTES returned by `file-attribute'.
+This is the time of the last change to the file's contents, and
+is a list of integers (HIGH LOW USEC PSEC) in the same style
+as (current-time)."
+ (nth 5 attributes))
+
+(defsubst file-attribute-status-change-time (attributes)
+ "The status modification time in ATTRIBUTES returned by `file-attribute'.
+This is the time of last change to the file's attributes: owner
+and group, access mode bits, etc, and is a list of integers (HIGH
+LOW USEC PSEC) in the same style as (current-time)."
+ (nth 6 attributes))
+
+(defsubst file-attribute-size (attributes)
+ "The size (in bytes) in ATTRIBUTES returned by `file-attribute'.
+This is a floating point number if the size is too large for an integer."
+ (nth 7 attributes))
+
+(defsubst file-attribute-modes (attributes)
+ "The file modes in ATTRIBUTES returned by `file-attribute'.
+This is a string of ten letters or dashes as in ls -l."
+ (nth 8 attributes))
+
+(defsubst file-attribute-inode-number (attributes)
+ "The inode number in ATTRIBUTES returned by `file-attribute'.
+If it is larger than what an Emacs integer can hold, this is of
+the form (HIGH . LOW): first the high bits, then the low 16 bits.
+If even HIGH is too large for an Emacs integer, this is instead
+of the form (HIGH MIDDLE . LOW): first the high bits, then the
+middle 24 bits, and finally the low 16 bits."
+ (nth 10 attributes))
+
+(defsubst file-attribute-device-number (attributes)
+ "The file system device number in ATTRIBUTES returned by `file-attribute'.
+If it is larger than what an Emacs integer can hold, this is of
+the form (HIGH . LOW): first the high bits, then the low 16 bits.
+If even HIGH is too large for an Emacs integer, this is instead
+of the form (HIGH MIDDLE . LOW): first the high bits, then the
+middle 24 bits, and finally the low 16 bits."
+ (nth 11 attributes))
+
\f
(define-key ctl-x-map "\C-f" 'find-file)
(define-key ctl-x-map "\C-r" 'find-file-read-only)