;;; 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 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1986, 1987, 1992, 1993, 1994, 1995, 1996,
+;; 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+;; 2006 Free Software Foundation, Inc.
;; Maintainer: FSF
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
+(defvar font-lock-keywords)
+
+
(defgroup backup nil
"Backups of edited data files."
:group 'files)
:type 'boolean
:group 'find-file)
-(defcustom revert-without-query
- nil
+(defcustom revert-without-query nil
"*Specify which files should be reverted without query.
The value is a list of regular expressions.
If the file name matches one of these regular expressions,
(put 'buffer-file-number 'permanent-local t)
(defvar buffer-file-numbers-unique (not (memq system-type '(windows-nt)))
- "Non-nil means that buffer-file-number uniquely identifies files.")
+ "Non-nil means that `buffer-file-number' uniquely identifies files.")
(defvar buffer-file-read-only nil
"Non-nil if visited file was read-only when visited.")
:type '(choice (const :tag "When visiting" visit)
(const :tag "When saving" t)
(const :tag "When visiting or saving" visit-save)
- (const :tag "Never" nil)
- (other :tag "Ask" ask))
+ (const :tag "Don't add newlines" nil)
+ (other :tag "Ask each time" ask))
:group 'editing-basics)
(defcustom mode-require-final-newline t
- "*Whether to add a newline at the end of the file, in certain major modes.
+ "*Whether to add a newline at end of file, in certain major modes.
Those modes set `require-final-newline' to this value when you enable them.
-They do so because they are used for files that are supposed
+They do so because they are often used for files that are supposed
to end in newlines, and the question is how to arrange that.
A value of t means do this only when the file is about to be saved.
A value of `visit' means do this right after the file is visited.
A value of `visit-save' means do it at both of those times.
-Any other non-nil value means ask user whether to add a newline, when saving."
+Any other non-nil value means ask user whether to add a newline, when saving.
+
+nil means do not add newlines. That is a risky choice in this variable
+since this value is used for modes for files that ought to have final newlines.
+So if you set this to nil, you must explicitly check and add
+a final newline, whenever you save a file that really needs one."
:type '(choice (const :tag "When visiting" visit)
(const :tag "When saving" t)
(const :tag "When visiting or saving" visit-save)
- (other :tag "Ask" ask))
+ (const :tag "Don't add newlines" nil)
+ (other :tag "Ask each time" ask))
:group 'editing-basics
- :version "21.4")
+ :version "22.1")
(defcustom auto-save-default t
"*Non-nil says by default do auto-saving of every file-visiting buffer."
These functions are called as soon as the error is detected.
Variable `buffer-file-name' is already set up.
The functions are called in the order given until one of them returns non-nil.")
-(defvaralias 'find-file-not-found-hooks 'find-file-not-found-functions)
-(make-obsolete-variable
- 'find-file-not-found-hooks 'find-file-not-found-functions "21.4")
+(define-obsolete-variable-alias 'find-file-not-found-hooks
+ 'find-file-not-found-functions "22.1")
;;;It is not useful to make this a local variable.
;;;(put 'find-file-hooks 'permanent-local t)
:group 'find-file
:type 'hook
:options '(auto-insert)
- :version "21.4")
-(defvaralias 'find-file-hooks 'find-file-hook)
-(make-obsolete-variable 'find-file-hooks 'find-file-hook "21.4")
+ :version "22.1")
+(define-obsolete-variable-alias 'find-file-hooks 'find-file-hook "22.1")
(defvar write-file-functions nil
"List of functions to be called before writing out a buffer to a file.
to how to save a buffer to file, for instance, choosing a suitable
coding system and setting mode bits. (See Info
node `(elisp)Saving Buffers'.) To perform various checks or
-updates before the buffer is saved, use `before-save-hook' .")
+updates before the buffer is saved, use `before-save-hook'.")
(put 'write-file-functions 'permanent-local t)
-(defvaralias 'write-file-hooks 'write-file-functions)
-(make-obsolete-variable 'write-file-hooks 'write-file-functions "21.4")
+(define-obsolete-variable-alias 'write-file-hooks 'write-file-functions "22.1")
(defvar local-write-file-hooks nil)
(make-variable-buffer-local 'local-write-file-hooks)
(put 'local-write-file-hooks 'permanent-local t)
-(make-obsolete-variable 'local-write-file-hooks 'write-file-functions "21.4")
+(make-obsolete-variable 'local-write-file-hooks 'write-file-functions "22.1")
(defvar write-contents-functions nil
"List of functions to be called before writing out a buffer to a file.
To perform various checks or updates before the buffer is saved,
use `before-save-hook'.")
(make-variable-buffer-local 'write-contents-functions)
-(defvaralias 'write-contents-hooks 'write-contents-functions)
-(make-obsolete-variable 'write-contents-hooks 'write-contents-functions "21.4")
+(define-obsolete-variable-alias 'write-contents-hooks
+ 'write-contents-functions "22.1")
(defcustom enable-local-variables t
"*Control use of local variables in files you visit.
This means to guarantee valid names and perhaps to canonicalize
certain patterns.
+FILENAME should be an absolute file name since the conversion rules
+sometimes vary depending on the position in the file name. E.g. c:/foo
+is a valid DOS file name, but c:/bar/c:/foo is not.
+
This function's standard definition is trivial; it just returns
the argument. However, on Windows and DOS, replace invalid
characters. On DOS, make sure to obey the 8.3 limitations. On
Value is not expanded---you must call `expand-file-name' yourself.
Default name to DEFAULT-DIRNAME if user exits with the same
non-empty string that was inserted by this function.
- (If DEFAULT-DIRNAME is omitted, the current buffer's directory is used,
- except that if INITIAL is specified, that combined with DIR is used.)
+ (If DEFAULT-DIRNAME is omitted, DIR combined with INITIAL is used,
+ or just DIR if INITIAL is nil.)
If the user exits with an empty minibuffer, this function returns
an empty string. (This can only happen if the user erased the
pre-inserted contents or if `insert-default-directory' is nil.)
the value of `default-directory'."
(unless dir
(setq dir default-directory))
- (unless default-dirname
- (setq default-dirname
- (if initial (concat dir initial) default-directory)))
- (read-file-name prompt dir default-dirname mustmatch initial
+ (read-file-name prompt dir (or default-dirname
+ (if initial (expand-file-name initial dir)
+ dir))
+ mustmatch initial
'file-directory-p))
\f
(defun locate-file (filename path &optional suffixes predicate)
"Search for FILENAME through PATH.
+If found, return the absolute file name of FILENAME, with its suffixes;
+otherwise return nil.
+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.
If non-nil, PREDICATE is used instead of `file-readable-p'.
PREDICATE can also be an integer to pass to the `access' system call,
in which case file-name handlers are ignored. This usage is deprecated.
(defun locate-file-completion (string path-and-suffixes action)
"Do completion for file names passed to `locate-file'.
-PATH-AND-SUFFIXES is a pair of lists (DIRECTORIES . SUFFIXES)."
+PATH-AND-SUFFIXES is a pair of lists, (DIRECTORIES . SUFFIXES)."
(if (file-name-absolute-p string)
(read-file-name-internal string nil action)
(let ((names nil)
((null action) (try-completion string names))
(t (test-completion string names))))))
+(defun executable-find (command)
+ "Search for COMMAND in `exec-path' and return the absolute file name.
+Return nil if COMMAND is not found anywhere in `exec-path'."
+ ;; Use 1 rather than file-executable-p to better match the behavior of
+ ;; call-process.
+ (locate-file command exec-path exec-suffixes 1))
+
(defun load-library (library)
"Load the library named LIBRARY.
This is an interface to the function `load'."
(setq count (1+ count))))
newname))
+(defun make-temp-file (prefix &optional dir-flag suffix)
+ "Create a temporary file.
+The returned file name (created by appending some random characters at the end
+of PREFIX, and expanding against `temporary-file-directory' if necessary),
+is guaranteed to point to a newly created empty file.
+You can then use `write-region' to write new data into the file.
+
+If DIR-FLAG is non-nil, create a new empty directory instead of a file.
+
+If SUFFIX is non-nil, add that at the end of the file name."
+ (let ((umask (default-file-modes))
+ file)
+ (unwind-protect
+ (progn
+ ;; Create temp files with strict access rights. It's easy to
+ ;; loosen them later, whereas it's impossible to close the
+ ;; time-window of loose permissions otherwise.
+ (set-default-file-modes ?\700)
+ (while (condition-case ()
+ (progn
+ (setq file
+ (make-temp-name
+ (expand-file-name prefix temporary-file-directory)))
+ (if suffix
+ (setq file (concat file suffix)))
+ (if dir-flag
+ (make-directory file)
+ (write-region "" nil file nil 'silent nil 'excl))
+ nil)
+ (file-already-exists t))
+ ;; the file was somehow created by someone else between
+ ;; `make-temp-name' and `write-region', let's try again.
+ nil)
+ file)
+ ;; Reset the umask.
+ (set-default-file-modes umask))))
+
(defun recode-file-name (file coding new-coding &optional ok-if-already-exists)
"Change the encoding of FILE's name from CODING to NEW-CODING.
The value is a new name of FILE.
Signals a `file-already-exists' error if a file of the new name
-already exists unless optional third argument OK-IF-ALREADY-EXISTS
-is non-nil. A number as third arg means request confirmation if
+already exists unless optional fourth argument OK-IF-ALREADY-EXISTS
+is non-nil. A number as fourth arg means request confirmation if
the new name already exists. This is what happens in interactive
use with M-x."
(interactive
(defvar find-file-default nil
"Used within `find-file-read-args'.")
+(defmacro minibuffer-with-setup-hook (fun &rest body)
+ "Add FUN to `minibuffer-setup-hook' while executing BODY.
+BODY should use the minibuffer at most once.
+Recursive uses of the minibuffer will not be affected."
+ (declare (indent 1) (debug t))
+ (let ((hook (make-symbol "setup-hook")))
+ `(let (,hook)
+ (setq ,hook
+ (lambda ()
+ ;; Clear out this hook so it does not interfere
+ ;; with any recursive minibuffer usage.
+ (remove-hook 'minibuffer-setup-hook ,hook)
+ (,fun)))
+ (unwind-protect
+ (progn
+ (add-hook 'minibuffer-setup-hook ,hook)
+ ,@body)
+ (remove-hook 'minibuffer-setup-hook ,hook)))))
+
(defun find-file-read-args (prompt mustmatch)
(list (let ((find-file-default
(and buffer-file-name
- (abbreviate-file-name buffer-file-name)))
- (munge-default-fun
- (lambda ()
- (setq minibuffer-default find-file-default)
- ;; Clear out this hook so it does not interfere
- ;; with any recursive minibuffer usage.
- (pop minibuffer-setup-hook)))
- (minibuffer-setup-hook
- minibuffer-setup-hook))
- (add-hook 'minibuffer-setup-hook munge-default-fun)
- (read-file-name prompt nil default-directory mustmatch))
+ (abbreviate-file-name buffer-file-name))))
+ (minibuffer-with-setup-hook
+ (lambda () (setq minibuffer-default find-file-default))
+ (read-file-name prompt nil default-directory mustmatch)))
t))
(defun find-file (filename &optional wildcards)
When nil, never request confirmation."
:group 'files
:group 'find-file
- :version "21.4"
+ :version "22.1"
:type '(choice integer (const :tag "Never request confirmation" nil)))
(defun find-file-noselect (filename &optional nowarn rawfile wildcards)
If a buffer exists visiting FILENAME, return that one, but
verify that the file has not changed since visited or saved.
The buffer is not selected, just returned to the caller.
-Optional first arg NOWARN non-nil means suppress any warning messages.
-Optional second arg RAWFILE non-nil means the file is read literally.
-Optional third arg WILDCARDS non-nil means do wildcard processing
+Optional second arg NOWARN non-nil means suppress any warning messages.
+Optional third arg RAWFILE non-nil means the file is read literally.
+Optional fourth arg WILDCARDS non-nil means do wildcard processing
and visit all the matching files. When wildcards are actually
used and expanded, return a list of buffers that are visiting
the various files."
(not (or buf nowarn))
(> (nth 7 attributes) large-file-warning-threshold)
(not (y-or-n-p
- (format "File %s is large (%sMB), really open? "
+ (format "File %s is large (%dMB), really open? "
(file-name-nondirectory filename)
(/ (nth 7 attributes) 1048576)))))
(error "Aborted"))
buf)
;; Create a new buffer.
(setq buf (create-file-buffer filename))
- (set-buffer-major-mode buf)
;; find-file-noselect-1 may use a different buffer.
(find-file-noselect-1 buf filename nowarn
rawfile truename number))))))
(progn
(set-buffer-multibyte nil)
(setq buffer-file-coding-system 'no-conversion)
+ (set-buffer-major-mode buf)
(make-local-variable 'find-file-literally)
(setq find-file-literally t))
(after-find-file error (not nowarn)))
or from Lisp without specifying the optional argument FIND-FILE;
in that case, this function acts as if `enable-local-variables' were t."
(interactive)
- (or find-file (funcall (or default-major-mode 'fundamental-mode)))
- (report-errors "File mode specification error: %s"
- (set-auto-mode))
- (report-errors "File local-variables error: %s"
- (let ((enable-local-variables (or (not find-file) enable-local-variables)))
+ (funcall (or default-major-mode 'fundamental-mode))
+ (let ((enable-local-variables (or (not find-file) enable-local-variables)))
+ (report-errors "File mode specification error: %s"
+ (set-auto-mode))
+ (report-errors "File local-variables error: %s"
(hack-local-variables)))
+ ;; 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
+ ;; Font-lock-mode (now in font-core.el) can be ON when
+ ;; font-lock.el still hasn't been loaded.
+ (boundp 'font-lock-keywords)
+ (eq (car font-lock-keywords) t))
+ (setq font-lock-keywords (cadr font-lock-keywords))
+ (font-lock-mode 1))
+
(if (fboundp 'ucs-set-table-for-input) ; don't lose when building
(ucs-set-table-for-input)))
(mapc
(lambda (elt)
(cons (purecopy (car elt)) (cdr elt)))
- '(;; do this first, so that .html.pl is Polish html, not Perl
+ `(;; do this first, so that .html.pl is Polish html, not Perl
("\\.s?html?\\(\\.[a-zA-Z_]+\\)?\\'" . html-mode)
("\\.te?xt\\'" . text-mode)
("\\.[tT]e[xX]\\'" . tex-mode)
("\\.ad[abs]\\'" . ada-mode)
("\\.ad[bs].dg\\'" . ada-mode)
("\\.\\([pP]\\([Llm]\\|erl\\|od\\)\\|al\\)\\'" . perl-mode)
- ("\\.mk\\'" . makefile-mode)
- ("\\([Mm]\\|GNUm\\)akep*file\\'" . makefile-mode)
- ("\\.am\\'" . makefile-mode) ;For Automake.
+ ("Imakefile\\'" . makefile-imake-mode)
+ ,@(if (memq system-type '(berkeley-unix next-mach darwin))
+ '(("\\.mk\\'" . makefile-bsdmake-mode)
+ ("GNUmakefile\\'" . makefile-gmake-mode)
+ ("[Mm]akefile\\'" . makefile-bsdmake-mode))
+ '(("\\.mk\\'" . makefile-gmake-mode) ; Might be any make, give Gnu the host advantage
+ ("[Mm]akefile\\'" . makefile-gmake-mode)))
+ ("Makeppfile\\'" . makefile-makepp-mode)
+ ("\\.am\\'" . makefile-automake-mode)
;; Less common extensions come here
;; so more common ones above are found faster.
("\\.texinfo\\'" . texinfo-mode)
("\\.pro\\'" . idlwave-mode)
("\\.prolog\\'" . prolog-mode)
("\\.tar\\'" . tar-mode)
- ("\\.\\(arc\\|zip\\|lzh\\|zoo\\|ear\\|jar\\|war\\)\\'" . archive-mode)
- ("\\.\\(ARC\\|ZIP\\|LZH\\|ZOO\\|EAR\\|JAR\\|WAR\\)\\'" . archive-mode)
+ ;; The list of archive file extensions should be in sync with
+ ;; `auto-coding-alist' with `no-conversion' coding system.
+ ("\\.\\(arc\\|zip\\|lzh\\|zoo\\|[jew]ar\\|xpi\\)\\'" . archive-mode)
+ ("\\.\\(ARC\\|ZIP\\|LZH\\|ZOO\\|[JEW]AR\\|XPI\\)\\'" . archive-mode)
("\\.sx[dmicw]\\'" . archive-mode) ; OpenOffice.org
;; Mailer puts message to be edited in
;; /tmp/Re.... or Message
("\\`/tmp/Re" . text-mode)
("/Message[0-9]*\\'" . text-mode)
- ("/drafts/[0-9]+\\'" . mh-letter-mode)
("\\.zone\\'" . zone-mode)
;; some news reader is reported to use this
("\\`/tmp/fol/" . text-mode)
("\\.properties\\(?:\\.[a-zA-Z0-9._-]+\\)?\\'" . conf-javaprop-mode)
;; *.cf, *.cfg, *.conf, *.config[.local|.de_DE.UTF8|...], */config
("[/.]c\\(?:on\\)?f\\(?:i?g\\)?\\(?:\\.[a-zA-Z0-9._-]+\\)?\\'" . conf-mode)
- ("\\`/etc/\\(?:DIR_COLORS\\|ethers\\|.?fstab\\|.*hosts\\|lesskey\\|login\\.?de\\(?:fs\\|vperm\\)\\|magic\\|mtab\\|pam\\.d/.*\\|permissions\\|protocols\\|rpc\\|services\\)\\'" . conf-space-mode)
- ("\\`/etc/\\(?:acpid?/.+\\|aliases\\|default/.+\\|group-?\\|hosts\\..+\\|inittab\\|ksysguarddrc\\|opera6rc\\|passwd-?\\|shadow-?\\)\\'" . conf-mode)
+ ("\\`/etc/\\(?:DIR_COLORS\\|ethers\\|.?fstab\\|.*hosts\\|lesskey\\|login\\.?de\\(?:fs\\|vperm\\)\\|magic\\|mtab\\|pam\\.d/.*\\|permissions\\(?:\\.d/.+\\)?\\|protocols\\|rpc\\|services\\)\\'" . conf-space-mode)
+ ("\\`/etc/\\(?:acpid?/.+\\|aliases\\(?:\\.d/.+\\)?\\|default/.+\\|group-?\\|hosts\\..+\\|inittab\\|ksysguarddrc\\|opera6rc\\|passwd-?\\|shadow-?\\|sysconfig/.+\\)\\'" . conf-mode)
;; either user's dot-files or under /etc or some such
("/\\.?\\(?:gnokiirc\\|kde.*rc\\|mime\\.types\\|wgetrc\\)\\'" . conf-mode)
;; alas not all ~/.*rc files are like this
("more" . text-mode)
("less" . text-mode)
("pg" . text-mode)
- ("make" . makefile-mode) ; Debian uses this
+ ("make" . makefile-gmake-mode) ; Debian uses this
("guile" . scheme-mode)
("clisp" . 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).
-The car of each element is compared with
-the name of the interpreter specified in the first line.
-If it matches, mode MODE is selected.
+If INTERPRETER matches the name of the interpreter specified in the first line
+of a script, mode MODE is enabled.
See also `auto-mode-alist'.")
(defvar auto-mode-interpreter-regexp
"#![ \t]?\\([^ \t\n]*\
/bin/env[ \t]\\)?\\([^ \t\n]+\\)"
- "Regular expression matching interpreters, for file mode determination.
+ "Regexp matching interpreters, for file mode determination.
This regular expression is matched against the first line of a file
-to determine the file's mode in `set-auto-mode' when Emacs can't deduce
-a mode from the file's name. If it matches, the file is assumed to
-be interpreted by the interpreter matched by the second group of the
-regular expression. The mode is then determined as the mode associated
-with that interpreter in `interpreter-mode-alist'.")
+to determine the file's mode in `set-auto-mode'. If it matches, the file
+is assumed to be interpreted by the interpreter matched by the second group
+of the regular expression. The mode is then determined as the mode
+associated with that interpreter in `interpreter-mode-alist'.")
(defvar magic-mode-alist
`(;; The < comes before the groups (but the first) to reduce backtracking.
("%![^V]" . ps-mode)
("# xmcd " . conf-unix-mode))
"Alist of buffer beginnings vs. corresponding major mode functions.
-Each element looks like (REGEXP . FUNCTION). FUNCTION will be
-called, unless it is nil (to allow `auto-mode-alist' to override).")
+Each element looks like (REGEXP . FUNCTION). After visiting a file,
+if REGEXP matches the text at the beginning of the buffer,
+`normal-mode' will call FUNCTION rather than allowing `auto-mode-alist'
+to decide the buffer's major mode.
+
+If FUNCTION is nil, then it is not called. (That is a way of saying
+\"allow `auto-mode-alist' to decide for these files.\")")
+
+(defvar magic-mode-regexp-match-limit 4000
+ "Upper limit on `magic-mode-alist' regexp matches.")
(defun set-auto-mode (&optional keep-mode-if-same)
"Select major mode appropriate for current buffer.
(setq done t)
(or (set-auto-mode-0 mode keep-mode-if-same)
;; continuing would call minor modes again, toggling them off
- (throw 'nop nil)))))
+ (throw 'nop nil))))))
+ (unless done
;; If we didn't, look for an interpreter specified in the first line.
;; As a special case, allow for things like "#!/bin/env perl", which
;; finds the interpreter anywhere in $PATH.
(unless done
(if (setq done (save-excursion
(goto-char (point-min))
- (assoc-default nil magic-mode-alist
- (lambda (re dummy)
- (looking-at re)))))
+ (save-restriction
+ (narrow-to-region (point-min)
+ (min (point-max)
+ (+ (point-min) magic-mode-regexp-match-limit)))
+ (assoc-default nil magic-mode-alist
+ (lambda (re dummy)
+ (looking-at re))))))
(set-auto-mode-0 done keep-mode-if-same)
;; Compare the filename against the entries in auto-mode-alist.
(if buffer-file-name
(setq temp (cdr temp)))
(not temp))
- (search-forward "-*-" (save-excursion
- ;; If the file begins with "#!"
- ;; (exec interpreter magic), look
- ;; for mode frobs in the first two
- ;; lines. You cannot necessarily
- ;; put them in the first line of
- ;; such a file without screwing up
- ;; the interpreter invocation.
- (end-of-line (and (looking-at "^#!") 2))
- (point)) t)
+ (search-forward "-*-" (line-end-position
+ ;; If the file begins with "#!"
+ ;; (exec interpreter magic), look
+ ;; for mode frobs in the first two
+ ;; lines. You cannot necessarily
+ ;; put them in the first line of
+ ;; such a file without screwing up
+ ;; the interpreter invocation.
+ (and (looking-at "^#!") 2)) t)
(progn
(skip-chars-forward " \t")
(setq beg (point))
- (search-forward "-*-"
- (save-excursion (end-of-line) (point))
- t))
+ (search-forward "-*-" (line-end-position) t))
(progn
(forward-char -3)
(skip-chars-backward " \t")
(goto-char beg)
end))))
+(defun hack-local-variables-confirm (string flag-to-check)
+ (or (eq flag-to-check t)
+ (and flag-to-check
+ (save-window-excursion
+ (condition-case nil
+ (switch-to-buffer (current-buffer))
+ (error
+ ;; If we fail to switch in the selected window,
+ ;; it is probably a minibuffer or dedicated window.
+ ;; So try another window.
+ (let ((pop-up-frames nil))
+ ;; Refrain from popping up frames since it can't
+ ;; be undone by save-window-excursion.
+ (pop-to-buffer (current-buffer)))))
+ (save-excursion
+ (beginning-of-line)
+ (set-window-start (selected-window) (point)))
+ (y-or-n-p (format string
+ (if buffer-file-name
+ (file-name-nondirectory buffer-file-name)
+ (concat "buffer " (buffer-name)))))))))
+
(defun hack-local-variables-prop-line (&optional mode-only)
"Set local variables specified in the -*- line.
Ignore any specification for `mode:' and `coding:';
(if mode-only mode-specified
(if (and result
(or mode-only
- (eq enable-local-variables t)
- (and enable-local-variables
- (save-window-excursion
- (condition-case nil
- (switch-to-buffer (current-buffer))
- (error
- ;; If we fail to switch in the selected window,
- ;; it is probably a minibuffer.
- ;; So try another window.
- (condition-case nil
- (switch-to-buffer-other-window (current-buffer))
- (error
- (switch-to-buffer-other-frame (current-buffer))))))
- (y-or-n-p (format "Set local variables as specified in -*- line of %s? "
- (file-name-nondirectory buffer-file-name)))))))
+ (hack-local-variables-confirm
+ "Set local variables as specified in -*- line of %s? "
+ enable-local-variables)))
(let ((enable-local-eval enable-local-eval))
(while result
(hack-one-local-variable (car (car result)) (cdr (car result)))
(search-backward "\n\^L" (max (- (point-max) 3000) (point-min)) 'move)
(when (let ((case-fold-search t))
(and (search-forward "Local Variables:" nil t)
- (or (eq enable-local-variables t)
- mode-only
- (and enable-local-variables
- (save-window-excursion
- (switch-to-buffer (current-buffer))
- (save-excursion
- (beginning-of-line)
- (set-window-start (selected-window) (point)))
- (y-or-n-p (format "Set local variables as specified at end of %s? "
- (if buffer-file-name
- (file-name-nondirectory
- buffer-file-name)
- (concat "buffer "
- (buffer-name))))))))))
+ (or mode-only
+ (hack-local-variables-confirm
+ "Set local variables as specified at end of %s? "
+ enable-local-variables))))
(skip-chars-forward " \t")
(let ((enable-local-eval enable-local-eval)
;; suffix is what comes after "local variables:" in its line.
endpos
(thisbuf (current-buffer)))
(save-excursion
- (if (not (re-search-forward
- (concat prefix "[ \t]*End:[ \t]*" suffix)
- nil t))
- (error "Local variables list is not properly terminated"))
+ (unless (let ((case-fold-search t))
+ (re-search-forward
+ (concat prefix "[ \t]*End:[ \t]*" suffix)
+ nil t))
+ (error "Local variables list is not properly terminated"))
(beginning-of-line)
(setq endpos (point)))
"Non-nil if SYM could be dangerous as a file-local variable with value VAL.
If VAL is nil or omitted, the question is whether any value might be
dangerous."
+ ;; If this is an alias, check the base name.
+ (condition-case nil
+ (setq sym (indirect-variable sym))
+ (error nil))
(let ((safep (get sym 'safe-local-variable)))
(or (get sym 'risky-local-variable)
- (and (string-match "-hooks?$\\|-functions?$\\|-forms?$\\|-program$\\|-command$\\|-predicate$\\|font-lock-keywords$\\|font-lock-keywords-[0-9]+$\\|font-lock-syntactic-keywords$\\|-frame-alist$\\|-mode-alist$\\|-map$\\|-map-alist$"
+ (and (string-match "-hooks?$\\|-functions?$\\|-forms?$\\|-program$\\|-commands?$\\|-predicates?$\\|font-lock-keywords$\\|font-lock-keywords-[0-9]+$\\|font-lock-syntactic-keywords$\\|-frame-alist$\\|-mode-alist$\\|-map$\\|-map-alist$"
(symbol-name sym))
(not safep))
;; If the safe-local-variable property isn't t or nil,
they appear in an `eval' local variable specification, without first
asking you for confirmation."
:group 'find-file
- :version "21.4"
+ :version "22.1"
:type '(repeat sexp))
(put 'c-set-style 'safe-local-eval-function t)
(hack-one-local-variable-eval-safep val))
;; Permit eval if not root and user says ok.
(and (not (zerop (user-uid)))
- (or (eq enable-local-eval t)
- (and enable-local-eval
- (save-window-excursion
- (switch-to-buffer (current-buffer))
- (save-excursion
- (beginning-of-line)
- (set-window-start (selected-window) (point)))
- (setq enable-local-eval
- (y-or-n-p (format "Process `eval' or hook local variables in %s? "
- (if buffer-file-name
- (concat "file " (file-name-nondirectory buffer-file-name))
- (concat "buffer " (buffer-name)))))))))))
+ (hack-local-variables-confirm
+ "Process `eval' or hook local variables in %s? "
+ enable-local-eval)))
(if (eq var 'eval)
(save-excursion (eval val))
(make-local-variable var)
(defun set-visited-file-name (filename &optional no-query along-with-file)
"Change name of file visited in current buffer to FILENAME.
+This also renames the buffer to correspond to the new file.
The next time the buffer is saved it will go in the newly specified file.
-FILENAME nil or an empty string means make buffer not be visiting any file.
+FILENAME nil or an empty string means mark buffer as not visiting any file.
Remember to delete the initial contents of the minibuffer
if you wish to pass an empty string as the argument.
(setq truename (file-truename filename))
(if find-file-visit-truename
(setq filename truename))))
+ (if filename
+ (let ((new-name (file-name-nondirectory filename)))
+ (if (string= new-name "")
+ (error "Empty file name"))))
(let ((buffer (and filename (find-buffer-visiting filename))))
(and buffer (not (eq buffer (current-buffer)))
(not no-query)
(setq buffer-file-name filename)
(if filename ; make buffer name reflect filename.
(let ((new-name (file-name-nondirectory buffer-file-name)))
- (if (string= new-name "")
- (error "Empty file name"))
(if (eq system-type 'vax-vms)
(setq new-name (downcase new-name)))
(setq default-directory (file-name-directory buffer-file-name))
(and buffer-file-name
(file-writable-p buffer-file-name)
(setq buffer-read-only nil))
- (save-buffer))
+ (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))
\f
(defun backup-buffer ()
"Make a backup of the disk file visited by the current buffer, if appropriate.
backup-by-copying
;; Don't rename a suid or sgid file.
(and modes (< 0 (logand modes #o6000)))
+ (not (file-writable-p (file-name-directory real-file-name)))
(and backup-by-copying-when-linked
(> (file-nlinks real-file-name) 1))
(and (or backup-by-copying-when-mismatch
(file-error nil))))))
(defun backup-buffer-copy (from-name to-name modes)
- (condition-case ()
- (copy-file from-name to-name t t)
- (file-error
- ;; If copying fails because file TO-NAME
- ;; is not writable, delete that file and try again.
- (if (and (file-exists-p to-name)
- (not (file-writable-p to-name)))
- (delete-file to-name))
- (copy-file from-name to-name t t)))
+ (let ((umask (default-file-modes)))
+ (unwind-protect
+ (progn
+ ;; Create temp files with strict access rights. It's easy to
+ ;; loosen them later, whereas it's impossible to close the
+ ;; time-window of loose permissions otherwise.
+ (set-default-file-modes ?\700)
+ (while (condition-case ()
+ (progn
+ (condition-case nil
+ (delete-file to-name)
+ (file-error nil))
+ (copy-file from-name to-name t t 'excl)
+ nil)
+ (file-already-exists t))
+ ;; The file was somehow created by someone else between
+ ;; `delete-file' and `copy-file', so let's try again.
+ nil))
+ ;; Reset the umask.
+ (set-default-file-modes umask)))
(and modes
(set-file-modes to-name (logand modes #o1777))))
(defcustom make-backup-file-name-function nil
"A function to use instead of the default `make-backup-file-name'.
-A value of nil gives the default `make-backup-file-name' behaviour.
+A value of nil gives the default `make-backup-file-name' behavior.
This could be buffer-local to do something special for specific
files. If you define it, you may need to change `backup-file-name-p'
(defun normal-backup-enable-predicate (name)
"Default `backup-enable-predicate' function.
-Checks for files in `temporary-file-directory' or
-`small-temporary-file-directory'."
+Checks for files in `temporary-file-directory',
+`small-temporary-file-directory', and /tmp."
(not (or (let ((comp (compare-strings temporary-file-directory 0 nil
name 0 nil)))
;; Directory is under temporary-file-directory.
(and (not (eq comp t))
(< comp (- (length temporary-file-directory)))))
+ (let ((comp (compare-strings "/tmp" 0 nil
+ name 0 nil)))
+ ;; Directory is under /tmp.
+ (and (not (eq comp t))
+ (< comp (- (length "/tmp")))))
(if small-temporary-file-directory
(let ((comp (compare-strings small-temporary-file-directory
0 nil
the index in the name where the version number begins."
(if (and (string-match "[0-9]+~$" fn backup-extract-version-start)
(= (match-beginning 0) backup-extract-version-start))
- (string-to-int (substring fn backup-extract-version-start -1))
+ (string-to-number (substring fn backup-extract-version-start -1))
0))
;; I believe there is no need to alter this behavior for VMS;
This function returns a relative file name which is equivalent to FILENAME
when used with that default directory as the default.
If FILENAME and DIRECTORY lie on different machines or on different drives
-on a DOS/Windows machine, it returns FILENAME on expanded form."
+on a DOS/Windows machine, it returns FILENAME in expanded form."
(save-match-data
(setq directory
(file-name-as-directory (expand-file-name (or directory
ancestor))))))
\f
(defun save-buffer (&optional args)
- "Save current buffer in visited file if modified. Versions described below.
+ "Save current buffer in visited file if modified.
+Variations are described below.
+
By default, makes the previous version into a backup file
if previously requested or if this is the first save.
-With 1 \\[universal-argument], marks this version
+Prefixed with one \\[universal-argument], marks this version
to become a backup when the next save is done.
-With 2 \\[universal-argument]'s,
+Prefixed with two \\[universal-argument]'s,
unconditionally makes the previous version into a backup file.
-With 3 \\[universal-argument]'s, marks this version
+Prefixed with three \\[universal-argument]'s, marks this version
to become a backup when the next save is done,
and unconditionally makes the previous version into a backup file.
-With argument of 0, never make the previous version into a backup file.
+With a numeric argument of 0, never make the previous version
+into a backup file.
If a file's name is FOO, the names of its numbered backup versions are
FOO.~i~ for various integers i. A non-numbered backup file is called FOO~.
"Save the current buffer in its visited file, if it has been modified.
The hooks `write-contents-functions' and `write-file-functions' get a chance
to do the job of saving; if they do not, then the buffer is saved in
-the visited file file in the usual way.
+the visited file in the usual way.
Before and after saving the buffer, this function runs
`before-save-hook' and `after-save-hook', respectively."
(interactive)
;; This requires write access to the containing dir,
;; which is why we don't try it if we don't have that access.
(let ((realname buffer-file-name)
- tempname nogood i succeed
+ tempname succeed
+ (umask (default-file-modes))
(old-modtime (visited-file-modtime)))
- (setq i 0)
- (setq nogood t)
- ;; Find the temporary name to write under.
- (while nogood
- (setq tempname (format
- (if (and (eq system-type 'ms-dos)
- (not (msdos-long-file-names)))
- "%s#%d.tm#" ; MSDOS limits files to 8+3
- (if (memq system-type '(vax-vms axp-vms))
- "%s$tmp$%d"
- "%s#tmp#%d"))
- dir i))
- (setq nogood (file-exists-p tempname))
- (setq i (1+ i)))
+ ;; Create temp files with strict access rights. It's easy to
+ ;; loosen them later, whereas it's impossible to close the
+ ;; time-window of loose permissions otherwise.
(unwind-protect
- (progn (clear-visited-file-modtime)
- (write-region (point-min) (point-max)
- tempname nil realname
- buffer-file-truename)
- (setq succeed t))
- ;; If writing the temp file fails,
- ;; delete the temp file.
- (or succeed
- (progn
- (condition-case nil
- (delete-file tempname)
- (file-error nil))
- (set-visited-file-modtime old-modtime))))
- ;; Since we have created an entirely new file
- ;; and renamed it, make sure it gets the
- ;; right permission bits set.
+ (progn
+ (clear-visited-file-modtime)
+ (set-default-file-modes ?\700)
+ ;; Try various temporary names.
+ ;; This code follows the example of make-temp-file,
+ ;; but it calls write-region in the appropriate way
+ ;; for saving the buffer.
+ (while (condition-case ()
+ (progn
+ (setq tempname
+ (make-temp-name
+ (expand-file-name "tmp" dir)))
+ (write-region (point-min) (point-max)
+ tempname nil realname
+ buffer-file-truename 'excl)
+ nil)
+ (file-already-exists t))
+ ;; The file was somehow created by someone else between
+ ;; `make-temp-name' and `write-region', let's try again.
+ nil)
+ (setq succeed t))
+ ;; Reset the umask.
+ (set-default-file-modes umask)
+ ;; If we failed, restore the buffer's modtime.
+ (unless succeed
+ (set-visited-file-modtime old-modtime)))
+ ;; Since we have created an entirely new file,
+ ;; make sure it gets the right permission bits set.
(setq setmodes (or setmodes (cons (file-modes buffer-file-name)
buffer-file-name)))
;; We succeeded in writing the temp file,
;; If we get an error writing the new file, and we made
;; the backup by renaming, undo the backing-up.
(and setmodes (not success)
- (rename-file (cdr setmodes) buffer-file-name))))))
+ (progn
+ (rename-file (cdr setmodes) buffer-file-name t)
+ (setq buffer-backed-up nil)))))))
setmodes))
(defun diff-buffer-with-file (&optional buffer)
(recursive-edit)
;; Return nil to ask about BUF again.
nil)
- "display the current buffer")
+ "view this file")
(?d diff-buffer-with-file
- "show difference to last saved version"))
+ "view changes in file"))
"ACTION-ALIST argument used in call to `map-y-or-n-p'.")
(put 'save-some-buffers-action-alist 'risky-local-variable t)
"Save some modified file-visiting buffers. Asks user about each one.
You can answer `y' to save, `n' not to save, `C-r' to look at the
buffer in question with `view-buffer' before deciding or `d' to
-view the differences using `diff-buffer-to-file'.
+view the differences using `diff-buffer-with-file'.
Optional argument (the prefix) non-nil means save all with no questions.
Optional second argument PRED determines which buffers are considered:
(buffer-list)
'("buffer" "buffers" "save")
save-some-buffers-action-alist))
- ;; Maybe to save abbrevs, and record whether
+ ;; Maybe to save abbrevs, and record whether
;; we either saved them or asked to.
(and save-abbrevs abbrevs-changed
(progn
(t (setq buffer-read-only (not buffer-read-only))
(force-mode-line-update)))
(if (vc-backend buffer-file-name)
- (message (substitute-command-keys
+ (message "%s" (substitute-command-keys
(concat "File is under version-control; "
"use \\[vc-next-action] to check in/out"))))))
(defvar buffer-stale-function nil
"Function to check whether a non-file buffer needs reverting.
This should be a function with one optional argument NOCONFIRM.
-Auto Revert Mode sets NOCONFIRM to t. The function should return
+Auto Revert Mode passes t for NOCONFIRM. The function should return
non-nil if the buffer should be reverted. A return value of
`fast' means that the need for reverting was not checked, but
that reverting the buffer is fast. The buffer is current when
(interactive (list (not current-prefix-arg)))
(if revert-buffer-function
(funcall revert-buffer-function ignore-auto noconfirm)
- (let* ((auto-save-p (and (not ignore-auto)
- (recent-auto-save-p)
- buffer-auto-save-file-name
- (file-readable-p buffer-auto-save-file-name)
- (y-or-n-p
- "Buffer has been auto-saved recently. Revert from auto-save file? ")))
- (file-name (if auto-save-p
- buffer-auto-save-file-name
- buffer-file-name)))
- (cond ((null file-name)
- (error "Buffer does not seem to be associated with any file"))
- ((or noconfirm
- (and (not (buffer-modified-p))
- (let ((tail revert-without-query)
- (found nil))
- (while tail
- (if (string-match (car tail) file-name)
- (setq found t))
- (setq tail (cdr tail)))
- found))
- (yes-or-no-p (format "Revert buffer from file %s? "
- file-name)))
- (run-hooks 'before-revert-hook)
- ;; If file was backed up but has changed since,
- ;; we shd make another backup.
- (and (not auto-save-p)
- (not (verify-visited-file-modtime (current-buffer)))
- (setq buffer-backed-up nil))
- ;; Get rid of all undo records for this buffer.
- (or (eq buffer-undo-list t)
- (setq buffer-undo-list nil))
- ;; Effectively copy the after-revert-hook status,
- ;; since after-find-file will clobber it.
- (let ((global-hook (default-value 'after-revert-hook))
- (local-hook-p (local-variable-p 'after-revert-hook))
- (local-hook (and (local-variable-p 'after-revert-hook)
- after-revert-hook)))
- (let (buffer-read-only
- ;; Don't make undo records for the reversion.
- (buffer-undo-list t))
- (if revert-buffer-insert-file-contents-function
- (funcall revert-buffer-insert-file-contents-function
- file-name auto-save-p)
- (if (not (file-exists-p file-name))
- (error (if buffer-file-number
- "File %s no longer exists!"
- "Cannot revert nonexistent file %s")
- file-name))
- ;; Bind buffer-file-name to nil
- ;; so that we don't try to lock the file.
- (let ((buffer-file-name nil))
- (or auto-save-p
- (unlock-buffer)))
- (widen)
- (let ((coding-system-for-read
- ;; Auto-saved file shoule be read by Emacs'
- ;; internal coding.
- (if auto-save-p 'auto-save-coding
- (or coding-system-for-read
- buffer-file-coding-system-explicit))))
- ;; This force after-insert-file-set-coding
- ;; (called from insert-file-contents) to set
- ;; buffer-file-coding-system to a proper value.
- (kill-local-variable 'buffer-file-coding-system)
-
- ;; Note that this preserves point in an intelligent way.
- (if preserve-modes
- (let ((buffer-file-format buffer-file-format))
- (insert-file-contents file-name (not auto-save-p)
- nil nil t))
- (insert-file-contents file-name (not auto-save-p)
- nil nil t)))))
- ;; Recompute the truename in case changes in symlinks
- ;; have changed the truename.
- (setq buffer-file-truename
- (abbreviate-file-name (file-truename buffer-file-name)))
- (after-find-file nil nil t t preserve-modes)
- ;; Run after-revert-hook as it was before we reverted.
- (setq-default revert-buffer-internal-hook global-hook)
- (if local-hook-p
- (set (make-local-variable 'revert-buffer-internal-hook)
- local-hook)
- (kill-local-variable 'revert-buffer-internal-hook))
- (run-hooks 'revert-buffer-internal-hook))
- t)))))
+ (with-current-buffer (or (buffer-base-buffer (current-buffer))
+ (current-buffer))
+ (let* ((auto-save-p (and (not ignore-auto)
+ (recent-auto-save-p)
+ buffer-auto-save-file-name
+ (file-readable-p buffer-auto-save-file-name)
+ (y-or-n-p
+ "Buffer has been auto-saved recently. Revert from auto-save file? ")))
+ (file-name (if auto-save-p
+ buffer-auto-save-file-name
+ buffer-file-name)))
+ (cond ((null file-name)
+ (error "Buffer does not seem to be associated with any file"))
+ ((or noconfirm
+ (and (not (buffer-modified-p))
+ (let ((tail revert-without-query)
+ (found nil))
+ (while tail
+ (if (string-match (car tail) file-name)
+ (setq found t))
+ (setq tail (cdr tail)))
+ found))
+ (yes-or-no-p (format "Revert buffer from file %s? "
+ file-name)))
+ (run-hooks 'before-revert-hook)
+ ;; If file was backed up but has changed since,
+ ;; we shd make another backup.
+ (and (not auto-save-p)
+ (not (verify-visited-file-modtime (current-buffer)))
+ (setq buffer-backed-up nil))
+ ;; Get rid of all undo records for this buffer.
+ (or (eq buffer-undo-list t)
+ (setq buffer-undo-list nil))
+ ;; Effectively copy the after-revert-hook status,
+ ;; since after-find-file will clobber it.
+ (let ((global-hook (default-value 'after-revert-hook))
+ (local-hook-p (local-variable-p 'after-revert-hook))
+ (local-hook (and (local-variable-p 'after-revert-hook)
+ after-revert-hook)))
+ (let (buffer-read-only
+ ;; Don't make undo records for the reversion.
+ (buffer-undo-list t))
+ (if revert-buffer-insert-file-contents-function
+ (funcall revert-buffer-insert-file-contents-function
+ file-name auto-save-p)
+ (if (not (file-exists-p file-name))
+ (error (if buffer-file-number
+ "File %s no longer exists!"
+ "Cannot revert nonexistent file %s")
+ file-name))
+ ;; Bind buffer-file-name to nil
+ ;; so that we don't try to lock the file.
+ (let ((buffer-file-name nil))
+ (or auto-save-p
+ (unlock-buffer)))
+ (widen)
+ (let ((coding-system-for-read
+ ;; Auto-saved file shoule be read by Emacs'
+ ;; internal coding.
+ (if auto-save-p 'auto-save-coding
+ (or coding-system-for-read
+ buffer-file-coding-system-explicit))))
+ ;; This force after-insert-file-set-coding
+ ;; (called from insert-file-contents) to set
+ ;; buffer-file-coding-system to a proper value.
+ (kill-local-variable 'buffer-file-coding-system)
+
+ ;; Note that this preserves point in an intelligent way.
+ (if preserve-modes
+ (let ((buffer-file-format buffer-file-format))
+ (insert-file-contents file-name (not auto-save-p)
+ nil nil t))
+ (insert-file-contents file-name (not auto-save-p)
+ nil nil t)))))
+ ;; Recompute the truename in case changes in symlinks
+ ;; have changed the truename.
+ (setq buffer-file-truename
+ (abbreviate-file-name (file-truename buffer-file-name)))
+ (after-find-file nil nil t t preserve-modes)
+ ;; Run after-revert-hook as it was before we reverted.
+ (setq-default revert-buffer-internal-hook global-hook)
+ (if local-hook-p
+ (set (make-local-variable 'revert-buffer-internal-hook)
+ local-hook)
+ (kill-local-variable 'revert-buffer-internal-hook))
+ (run-hooks 'revert-buffer-internal-hook))
+ t))))))
(defun recover-this-file ()
"Recover the visited file--get contents from its last auto-save file."
(while list
(let* ((buffer (car list))
(name (buffer-name buffer)))
- (and (not (string-equal name ""))
- (/= (aref name 0) ? )
+ (and name ; Can be nil for an indirect buffer
+ ; if we killed the base buffer.
+ (not (string-equal name ""))
+ (/= (aref name 0) ?\s)
(yes-or-no-p
(format "Buffer %s %s. Kill? "
name
before calling this function. You can redefine this for customization.
See also `auto-save-file-name-p'."
(if buffer-file-name
- (let ((list auto-save-file-name-transforms)
- (filename buffer-file-name)
- result uniq)
- ;; Apply user-specified translations
- ;; to the file name.
- (while (and list (not result))
- (if (string-match (car (car list)) filename)
- (setq result (replace-match (cadr (car list)) t nil
- filename)
- uniq (car (cddr (car list)))))
- (setq list (cdr list)))
- (if result
- (if uniq
- (setq filename (concat
- (file-name-directory result)
- (subst-char-in-string
- ?/ ?!
- (replace-regexp-in-string "!" "!!"
- filename))))
- (setq filename result)))
- (setq result
- (if (and (eq system-type 'ms-dos)
- (not (msdos-long-file-names)))
- ;; We truncate the file name to DOS 8+3 limits
- ;; before doing anything else, because the regexp
- ;; passed to string-match below cannot handle
- ;; extensions longer than 3 characters, multiple
- ;; dots, and other atrocities.
- (let ((fn (dos-8+3-filename
- (file-name-nondirectory buffer-file-name))))
- (string-match
- "\\`\\([^.]+\\)\\(\\.\\(..?\\)?.?\\|\\)\\'"
- fn)
- (concat (file-name-directory buffer-file-name)
- "#" (match-string 1 fn)
- "." (match-string 3 fn) "#"))
- (concat (file-name-directory filename)
- "#"
- (file-name-nondirectory filename)
- "#")))
- ;; Make sure auto-save file names don't contain characters
- ;; invalid for the underlying filesystem.
- (if (and (memq system-type '(ms-dos windows-nt))
- ;; Don't modify remote (ange-ftp) filenames
- (not (string-match "^/\\w+@[-A-Za-z0-9._]+:" result)))
- (convert-standard-filename result)
- result))
+ (let ((handler (find-file-name-handler buffer-file-name
+ 'make-auto-save-file-name)))
+ (if handler
+ (funcall handler 'make-auto-save-file-name)
+ (let ((list auto-save-file-name-transforms)
+ (filename buffer-file-name)
+ result uniq)
+ ;; Apply user-specified translations
+ ;; to the file name.
+ (while (and list (not result))
+ (if (string-match (car (car list)) filename)
+ (setq result (replace-match (cadr (car list)) t nil
+ filename)
+ uniq (car (cddr (car list)))))
+ (setq list (cdr list)))
+ (if result
+ (if uniq
+ (setq filename (concat
+ (file-name-directory result)
+ (subst-char-in-string
+ ?/ ?!
+ (replace-regexp-in-string "!" "!!"
+ filename))))
+ (setq filename result)))
+ (setq result
+ (if (and (eq system-type 'ms-dos)
+ (not (msdos-long-file-names)))
+ ;; We truncate the file name to DOS 8+3 limits
+ ;; before doing anything else, because the regexp
+ ;; passed to string-match below cannot handle
+ ;; extensions longer than 3 characters, multiple
+ ;; dots, and other atrocities.
+ (let ((fn (dos-8+3-filename
+ (file-name-nondirectory buffer-file-name))))
+ (string-match
+ "\\`\\([^.]+\\)\\(\\.\\(..?\\)?.?\\|\\)\\'"
+ fn)
+ (concat (file-name-directory buffer-file-name)
+ "#" (match-string 1 fn)
+ "." (match-string 3 fn) "#"))
+ (concat (file-name-directory filename)
+ "#"
+ (file-name-nondirectory filename)
+ "#")))
+ ;; Make sure auto-save file names don't contain characters
+ ;; invalid for the underlying filesystem.
+ (if (and (memq system-type '(ms-dos windows-nt))
+ ;; Don't modify remote (ange-ftp) filenames
+ (not (string-match "^/\\w+@[-A-Za-z0-9._]+:" result)))
+ (convert-standard-filename result)
+ result))))
;; Deal with buffers that don't have any associated files. (Mail
;; mode tends to create a good number of these.)
:group 'dired)
(defun get-free-disk-space (dir)
- "Return the mount of free space on directory DIR's file system.
+ "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 infornmation
+or nil if the system call or the program which retrieve the information
fail.
This function calls `file-system-info' if it is available, or invokes the
(forward-word -1)
(buffer-substring (point) end)))))))))
+;; The following expression replaces `dired-move-to-filename-regexp'.
+(defvar directory-listing-before-filename-regexp
+ (let* ((l "\\([A-Za-z]\\|[^\0-\177]\\)")
+ (l-or-quote "\\([A-Za-z']\\|[^\0-\177]\\)")
+ ;; In some locales, month abbreviations are as short as 2 letters,
+ ;; and they can be followed by ".".
+ ;; In Breton, a month name can include a quote character.
+ (month (concat l-or-quote l-or-quote "+\\.?"))
+ (s " ")
+ (yyyy "[0-9][0-9][0-9][0-9]")
+ (dd "[ 0-3][0-9]")
+ (HH:MM "[ 0-2][0-9][:.][0-5][0-9]")
+ (seconds "[0-6][0-9]\\([.,][0-9]+\\)?")
+ (zone "[-+][0-2][0-9][0-5][0-9]")
+ (iso-mm-dd "[01][0-9]-[0-3][0-9]")
+ (iso-time (concat HH:MM "\\(:" seconds "\\( ?" zone "\\)?\\)?"))
+ (iso (concat "\\(\\(" yyyy "-\\)?" iso-mm-dd "[ T]" iso-time
+ "\\|" yyyy "-" iso-mm-dd "\\)"))
+ (western (concat "\\(" month s "+" dd "\\|" dd "\\.?" s month "\\)"
+ s "+"
+ "\\(" HH:MM "\\|" yyyy "\\)"))
+ (western-comma (concat month s "+" dd "," s "+" yyyy))
+ ;; Japanese MS-Windows ls-lisp has one-digit months, and
+ ;; omits the Kanji characters after month and day-of-month.
+ ;; On Mac OS X 10.3, the date format in East Asian locales is
+ ;; day-of-month digits followed by month digits.
+ (mm "[ 0-1]?[0-9]")
+ (east-asian
+ (concat "\\(" mm l "?" s dd l "?" s "+"
+ "\\|" dd s mm s "+" "\\)"
+ "\\(" HH:MM "\\|" yyyy l "?" "\\)")))
+ ;; The "[0-9]" below requires the previous column to end in a digit.
+ ;; This avoids recognizing `1 may 1997' as a date in the line:
+ ;; -r--r--r-- 1 may 1997 1168 Oct 19 16:49 README
+
+ ;; The "[BkKMGTPEZY]?" below supports "ls -alh" output.
+ ;; The ".*" below finds the last match if there are multiple matches.
+ ;; This avoids recognizing `jservice 10 1024' as a date in the line:
+ ;; drwxr-xr-x 3 jservice 10 1024 Jul 2 1997 esg-host
+
+ ;; vc dired listings provide the state or blanks between file
+ ;; permissions and date. The state is always surrounded by
+ ;; parantheses:
+ ;; -rw-r--r-- (modified) 2005-10-22 21:25 files.el
+ ;; This is not supported yet.
+ (concat ".*[0-9][BkKMGTPEZY]?" s
+ "\\(" western "\\|" western-comma "\\|" east-asian "\\|" iso "\\)"
+ s "+"))
+ "Regular expression to match up to the file name in a directory listing.
+The default value is designed to recognize dates and times
+regardless of the language.")
(defvar insert-directory-ls-version 'unknown)
(if (string-match "ls (.*utils) \\([0-9.]*\\)$" version-out)
(let* ((version (match-string 1 version-out))
(split (split-string version "[.]"))
- (numbers (mapcar 'string-to-int split))
+ (numbers (mapcar 'string-to-number split))
(min '(5 2 1))
comparison)
(while (and (not comparison) (or numbers min))
(end (insert-directory-adj-pos
(+ beg (read (current-buffer)))
error-lines)))
- (if (memq (char-after end) '(?\n ?\ ))
+ (if (memq (char-after end) '(?\n ?\s))
;; End is followed by \n or by " -> ".
(put-text-property start end 'dired-filename t)
;; It seems that we can't trust ls's output as to
((eq method 'add)
(concat "/:" (apply operation arguments)))
((eq method 'quote)
- (prog1 (apply operation arguments)
+ (unwind-protect
+ (apply operation arguments)
(setq buffer-file-name (concat "/:" buffer-file-name))))
((eq method 'unquote-then-quote)
(let (res)
(define-key ctl-x-5-map "\C-f" 'find-file-other-frame)
(define-key ctl-x-5-map "r" 'find-file-read-only-other-frame)
-;;; arch-tag: bc68d3ea-19ca-468b-aac6-3a4a7766101f
+;; arch-tag: bc68d3ea-19ca-468b-aac6-3a4a7766101f
;;; files.el ends here
HCoop / bpt / emacs.git / blobdiff