;;; files.el --- file input and output commands for Emacs
-;; Copyright (C) 1985, 86, 87, 92, 93, 94, 1995 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 86, 87, 92, 93,
+;; 94, 95, 1996 Free Software Foundation, Inc.
;; Maintainer: FSF
;; GNU General Public License for more details.
;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; 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.
;;; Commentary:
and the rest are not called.
These hooks are considered to pertain to the visited file.
So this list is cleared if you change the visited file name.
-See also `write-contents-hooks'.
-Don't make this variable buffer-local; instead, use `local-write-file-hooks'.")
+
+Don't make this variable buffer-local; instead, use `local-write-file-hooks'.
+See also `write-contents-hooks'.")
;;; However, in case someone does make it local...
(put 'write-file-hooks 'permanent-local t)
(defvar local-write-file-hooks nil
"Just like `write-file-hooks', except intended for per-buffer use.
The functions in this list are called before the ones in
-`write-file-hooks'.")
+`write-file-hooks'.
+
+This variable is meant to be used for hooks that have to do with a
+particular visited file. Therefore, it is a permanent local, so that
+changing the major mode does not clear it. However, calling
+`set-visited-file-name' does clear it.")
(make-variable-buffer-local 'local-write-file-hooks)
(put 'local-write-file-hooks 'permanent-local t)
"List of functions to be called before writing out a buffer to a file.
If one of them returns non-nil, the file is considered already written
and the rest are not called.
-These hooks are considered to pertain to the buffer's contents,
-not to the particular visited file; thus, `set-visited-file-name' does
-not clear this variable, but changing the major mode does clear it.
+
+This variable is meant to be used for hooks that pertain to the
+buffer's contents, not to the particular visited file; thus,
+`set-visited-file-name' does not clear this variable; but changing the
+major mode does clear it.
+
+This variable automatically becomes buffer-local whenever it is set.
+If you use `add-hooks' to add elements to the list, use nil for the
+LOCAL argument.
+
See also `write-file-hooks'.")
+(make-variable-buffer-local 'write-contents-hooks)
(defconst enable-local-variables t
"*Control use of local-variables lists in files you visit.
(dired-noselect (if find-file-visit-truename
(abbreviate-file-name (file-truename filename))
filename))
- (error "%s is a directory." filename))
+ (error "%s is a directory" filename))
(let* ((buf (get-file-buffer filename))
(truename (abbreviate-file-name (file-truename filename)))
(number (nthcdr 10 (file-attributes truename)))
(setq backup-inhibited t)))
(if rawfile
nil
- (after-find-file error (not nowarn)))))
+ (after-find-file error (not nowarn))
+ (setq buf (current-buffer)))))
buf)))
\f
(defvar after-find-file-from-revert-buffer nil)
(if (and warn
(file-newer-than-file-p (make-auto-save-file-name)
buffer-file-name))
- "Auto save file is newer; consider M-x recover-file"
+ (format "%s has auto save data; consider M-x recover-file"
+ (file-name-nondirectory buffer-file-name))
(setq not-serious t)
(if error "(New file)" nil)))
((not error)
("\\.l\\'" . lisp-mode)
("\\.lisp\\'" . lisp-mode)
("\\.f\\'" . fortran-mode)
+ ("\\.F\\'" . fortran-mode)
("\\.for\\'" . fortran-mode)
("\\.p\\'" . pascal-mode)
("\\.pas\\'" . pascal-mode)
("\\.hxx\\'" . c++-mode)
("\\.c\\+\\+\\'" . c++-mode)
("\\.h\\+\\+\\'" . c++-mode)
+ ("\\.java\\'" . java-mode)
("\\.mk\\'" . makefile-mode)
- ("[Mm]akefile\\(.in\\)?\\'" . makefile-mode)
+ ("\\(M\\|m\\|GNUm\\)akefile\\(.in\\)?\\'" . makefile-mode)
;;; Less common extensions come here
;;; so more common ones above are found faster.
("\\.texinfo\\'" . texinfo-mode)
("ChangeLog.[0-9]+\\'" . change-log-mode)
("\\$CHANGE_LOG\\$\\.TXT" . change-log-mode)
("\\.scm\\.[0-9]*\\'" . scheme-mode)
+ ("\\.[ck]?sh\\'\\|\\.shar\\'\\|/\\.z?profile\\'" . sh-mode)
+ ("/\\.\\(bash_profile\\|z?login\\|bash_login\\|z?logout\\)\\'" . sh-mode)
+ ("/\\.\\(bash_logout\\|[kz]shrc\\|bashrc\\|t?cshrc\\|esrc\\)\\'" . sh-mode)
+ ("/\\.\\([kz]shenv\\|xinitrc\\|startxrc\\|xsession\\)\\'" . sh-mode)
;;; The following should come after the ChangeLog pattern
;;; for the sake of ChangeLog.1, etc.
;;; and after the .scm.[0-9] pattern too.
("\\.article\\'" . text-mode)
("\\.letter\\'" . text-mode)
("\\.tcl\\'" . tcl-mode)
+ ("\\.exp\\'" . tcl-mode)
+ ("\\.itcl\\'" . tcl-mode)
+ ("\\.itk\\'" . tcl-mode)
("\\.f90\\'" . f90-mode)
("\\.lsp\\'" . lisp-mode)
("\\.awk\\'" . awk-mode)
("\\.\\(arc\\|zip\\|lzh\\|zoo\\)\\'" . archive-mode)
;; Mailer puts message to be edited in
;; /tmp/Re.... or Message
- ("^/tmp/Re" . text-mode)
+ ("\\`/tmp/Re" . text-mode)
("/Message[0-9]*\\'" . text-mode)
("/drafts/[0-9]+\\'" . mh-letter-mode)
;; some news reader is reported to use this
- ("^/tmp/fol/" . text-mode)
+ ("\\`/tmp/fol/" . text-mode)
("\\.y\\'" . c-mode)
("\\.lex\\'" . c-mode)
("\\.oak\\'" . scheme-mode)
- ("\\.sgm\\'" . sgml-mode)
- ("\\.sgml\\'" . sgml-mode)
+ ("\\.sgml?\\'" . sgml-mode)
("\\.dtd\\'" . sgml-mode)
+ ("\\.s?html?\\'" . html-mode)
;; .emacs following a directory delimiter
;; in either Unix or VMS syntax.
("[]>:/]\\..*emacs\\'" . emacs-lisp-mode)
(defconst interpreter-mode-alist
'(("perl" . perl-mode)
+ ("perl5" . perl-mode)
("wish" . tcl-mode)
("wishx" . tcl-mode)
("tcl" . tcl-mode)
("tclsh" . tcl-mode)
("awk" . awk-mode)
+ ("mawk" . awk-mode)
("nawk" . awk-mode)
("gawk" . awk-mode)
- ("scm" . scheme-mode))
+ ("scm" . scheme-mode)
+ ("ash" . sh-mode)
+ ("bash" . sh-mode)
+ ("csh" . sh-mode)
+ ("dtksh" . sh-mode)
+ ("es" . sh-mode)
+ ("itcsh" . sh-mode)
+ ("jsh" . sh-mode)
+ ("ksh" . sh-mode)
+ ("oash" . sh-mode)
+ ("pdksh" . sh-mode)
+ ("rc" . sh-mode)
+ ("sh" . sh-mode)
+ ("sh5" . sh-mode)
+ ("tcsh" . sh-mode)
+ ("wksh" . sh-mode)
+ ("wsh" . sh-mode)
+ ("zsh" . sh-mode)
+ ("tail" . text-mode)
+ ("more" . text-mode)
+ ("less" . text-mode)
+ ("pg" . text-mode))
"Alist mapping interpreter names to major modes.
This alist applies to files whose first line starts with `#!'.
Each element looks like (INTERPRETER . MODE).
(let ((interpreter
(save-excursion
(goto-char (point-min))
- (if (looking-at "#! *\\([^ \t\n]*/bin/env +\\)?\\([^ \t\n]+\\)")
+ (if (looking-at "#![ \t]?\\([^ \t\n]*/bin/env[ \t]\\)?\\([^ \t\n]+\\)")
(buffer-substring (match-beginning 2)
(match-end 2))
"")))
(string-match "-hooks?$\\|-functions?$\\|-forms?$\\|-program$\\|-command$"
(symbol-name var))
(not (get var 'safe-local-variable))))
- ;; Permit evaling a put of a harmless property
+ ;; Permit evalling a put of a harmless property.
;; if the args do nothing tricky.
(if (or (and (eq var 'eval)
(consp val)
(setq truename (file-truename filename))
(if find-file-visit-truename
(setq filename truename))))
+ (let ((buffer (and filename (find-buffer-visiting filename))))
+ (and buffer (not (eq buffer (current-buffer)))
+ (not (y-or-n-p (message "A buffer is visiting %s; proceed? "
+ filename)))
+ (error "Aborted")))
(or (equal filename buffer-file-name)
(progn
(and filename (lock-buffer filename))
If the buffer is already visiting a file, you can specify
a directory name as FILENAME, to write a file of the same
old name in that directory.
+
If optional second arg CONFIRM is non-nil,
-ask for confirmation for overwriting an existing file."
+ask for confirmation for overwriting an existing file.
+Interactively, confirmation is required unless you supply a prefix argument."
;; (interactive "FWrite file: ")
(interactive
(list (if buffer-file-name
(cdr (assq 'default-directory
(buffer-local-variables)))
nil nil (buffer-name)))
- t))
+ (not current-prefix-arg)))
(or (null filename) (string-equal filename "")
(progn
;; If arg is just a directory,
(file (file-name-nondirectory filename))
(dir (file-name-directory filename))
(comp (file-name-all-completions file dir))
- newest)
+ (newest nil)
+ tem)
(while comp
- (setq file (concat dir (car comp))
+ (setq tem (car comp)
comp (cdr comp))
- (if (and (backup-file-name-p file)
- (or (null newest) (file-newer-than-file-p file newest)))
- (setq newest file)))
+ (cond ((and (backup-file-name-p tem)
+ (string= (file-name-sans-versions tem) file))
+ (setq tem (concat dir tem))
+ (if (or (null newest)
+ (file-newer-than-file-p tem newest))
+ (setq newest tem)))))
newest))
(defun rename-uniquely ()
"Create the directory DIR and any nonexistent parent dirs.
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 nonexistint 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."
(terpri)
(save-excursion
(set-buffer "*Directory*")
- (setq default-directory (file-name-directory dirname))
+ (setq default-directory
+ (if (file-directory-p dirname)
+ (file-name-as-directory dirname)
+ (file-name-directory dirname)))
(let ((wildcard (not (file-directory-p dirname))))
(insert-directory dirname switches wildcard (not wildcard)))))))