(help-add-fundoc-usage): Allow arglist to be a string.
[emacs.git] / lisp / dired.el
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1 ;;; dired.el --- directory-browsing commands
3 ;; Copyright (C) 1985, 86, 92, 93, 94, 95, 96, 1997, 2000, 2001, 2003
4 ;; Free Software Foundation, Inc.
6 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>
7 ;; Maintainer: FSF
8 ;; Keywords: files
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 ;; Boston, MA 02111-1307, USA.
27 ;;; Commentary:
29 ;; This is a major mode for directory browsing and editing. It is
30 ;; documented in the Emacs manual.
32 ;; Rewritten in 1990/1991 to add tree features, file marking and
33 ;; sorting by Sebastian Kremer <sk@thp.uni-koeln.de>.
34 ;; Finished up by rms in 1992.
36 ;;; Code:
38 ;;; Customizable variables
40 (defgroup dired nil
41 "Directory editing."
42 :group 'files)
44 (defgroup dired-mark nil
45 "Handling marks in Dired."
46 :prefix "dired-"
47 :group 'dired)
50 ;;;###autoload
51 (defcustom dired-listing-switches "-al"
52 "*Switches passed to `ls' for dired. MUST contain the `l' option.
53 May contain all other options that don't contradict `-l';
54 may contain even `F', `b', `i' and `s'. See also the variable
55 `dired-ls-F-marks-symlinks' concerning the `F' switch.
56 On systems such as MS-DOS and MS-Windows, which use `ls' emulation in Lisp,
57 some of the `ls' switches are not supported; see the doc string of
58 `insert-directory' on ls-lisp.el for more details."
59 :type 'string
60 :group 'dired)
62 ; Don't use absolute file names as /bin should be in any PATH and people
63 ; may prefer /usr/local/gnu/bin or whatever. However, chown is
64 ; usually not in PATH.
66 ;;;###autoload
67 (defvar dired-chown-program
68 (if (memq system-type '(hpux dgux usg-unix-v irix linux gnu/linux cygwin))
69 "chown"
70 (if (file-exists-p "/usr/sbin/chown")
71 "/usr/sbin/chown"
72 "/etc/chown"))
73 "Name of chown command (usually `chown' or `/etc/chown').")
75 (defvar dired-use-ls-dired (not (not (string-match "gnu" system-configuration)))
76 "Non-nil means Dired should use `ls --dired'.")
78 (defvar dired-chmod-program "chmod"
79 "Name of chmod command (usually `chmod').")
81 ;;;###autoload
82 (defcustom dired-ls-F-marks-symlinks nil
83 "*Informs dired about how `ls -lF' marks symbolic links.
84 Set this to t if `ls' (or whatever program is specified by
85 `insert-directory-program') with `-lF' marks the symbolic link
86 itself with a trailing @ (usually the case under Ultrix).
88 Example: if `ln -s foo bar; ls -F bar' gives `bar -> foo', set it to
89 nil (the default), if it gives `bar@ -> foo', set it to t.
91 Dired checks if there is really a @ appended. Thus, if you have a
92 marking `ls' program on one host and a non-marking on another host, and
93 don't care about symbolic links which really end in a @, you can
94 always set this variable to t."
95 :type 'boolean
96 :group 'dired-mark)
98 ;;;###autoload
99 (defcustom dired-trivial-filenames "^\\.\\.?$\\|^#"
100 "*Regexp of files to skip when finding first file of a directory.
101 A value of nil means move to the subdir line.
102 A value of t means move to first file."
103 :type '(choice (const :tag "Move to subdir" nil)
104 (const :tag "Move to first" t)
105 regexp)
106 :group 'dired)
108 ;;;###autoload
109 (defcustom dired-keep-marker-rename t
110 ;; Use t as default so that moved files "take their markers with them".
111 "*Controls marking of renamed files.
112 If t, files keep their previous marks when they are renamed.
113 If a character, renamed files (whether previously marked or not)
114 are afterward marked with that character."
115 :type '(choice (const :tag "Keep" t)
116 (character :tag "Mark"))
117 :group 'dired-mark)
119 ;;;###autoload
120 (defcustom dired-keep-marker-copy ?C
121 "*Controls marking of copied files.
122 If t, copied files are marked if and as the corresponding original files were.
123 If a character, copied files are unconditionally marked with that character."
124 :type '(choice (const :tag "Keep" t)
125 (character :tag "Mark"))
126 :group 'dired-mark)
128 ;;;###autoload
129 (defcustom dired-keep-marker-hardlink ?H
130 "*Controls marking of newly made hard links.
131 If t, they are marked if and as the files linked to were marked.
132 If a character, new links are unconditionally marked with that character."
133 :type '(choice (const :tag "Keep" t)
134 (character :tag "Mark"))
135 :group 'dired-mark)
137 ;;;###autoload
138 (defcustom dired-keep-marker-symlink ?Y
139 "*Controls marking of newly made symbolic links.
140 If t, they are marked if and as the files linked to were marked.
141 If a character, new links are unconditionally marked with that character."
142 :type '(choice (const :tag "Keep" t)
143 (character :tag "Mark"))
144 :group 'dired-mark)
146 ;;;###autoload
147 (defcustom dired-dwim-target nil
148 "*If non-nil, dired tries to guess a default target directory.
149 This means: if there is a dired buffer displayed in the next window,
150 use its current subdir, instead of the current subdir of this dired buffer.
152 The target is used in the prompt for file copy, rename etc."
153 :type 'boolean
154 :group 'dired)
156 ;;;###autoload
157 (defcustom dired-copy-preserve-time t
158 "*If non-nil, Dired preserves the last-modified time in a file copy.
159 \(This works on only some systems.)"
160 :type 'boolean
161 :group 'dired)
163 ; These variables were deleted and the replacements are on files.el.
164 ; We leave aliases behind for back-compatibility.
165 (defvaralias 'dired-free-space-program 'directory-free-space-program)
166 (defvaralias 'dired-free-space-args 'directory-free-space-args)
168 ;;; Hook variables
170 (defcustom dired-load-hook nil
171 "Run after loading dired.
172 You can customize key bindings or load extensions with this."
173 :group 'dired
174 :type 'hook)
176 (defcustom dired-mode-hook nil
177 "Run at the very end of dired-mode."
178 :group 'dired
179 :type 'hook)
181 (defcustom dired-before-readin-hook nil
182 "This hook is run before a dired buffer is read in (created or reverted)."
183 :group 'dired
184 :type 'hook)
186 (defcustom dired-after-readin-hook nil
187 "Hook run after each time a file or directory is read by Dired.
188 After each listing of a file or directory, this hook is run
189 with the buffer narrowed to the listing."
190 :group 'dired
191 :type 'hook)
192 ;; Note this can't simply be run inside function `dired-ls' as the hook
193 ;; functions probably depend on the dired-subdir-alist to be OK.
195 ;; Internal variables
197 (defvar dired-marker-char ?* ; the answer is 42
198 ;; so that you can write things like
199 ;; (let ((dired-marker-char ?X))
200 ;; ;; great code using X markers ...
201 ;; )
202 ;; For example, commands operating on two sets of files, A and B.
203 ;; Or marking files with digits 0-9. This could implicate
204 ;; concentric sets or an order for the marked files.
205 ;; The code depends on dynamic scoping on the marker char.
206 "In Dired, the current mark character.
207 This is what the `do' commands look for and what the `mark' commands store.")
209 (defvar dired-del-marker ?D
210 "Character used to flag files for deletion.")
212 (defvar dired-shrink-to-fit
214 ;; I see no reason ever to make this nil -- rms.
215 ;; (> baud-rate search-slow-speed)
216 "Non-nil means Dired shrinks the display buffer to fit the marked files.")
218 (defvar dired-flagging-regexp nil);; Last regexp used to flag files.
220 (defvar dired-file-version-alist)
222 ;;;###autoload
223 (defvar dired-directory nil
224 "The directory name or wildcard spec that this Dired directory lists.
225 Local to each dired buffer. May be a list, in which case the car is the
226 directory name and the cdr is the list of files to mention.
227 The directory name must be absolute, but need not be fully expanded.")
229 (defvar dired-actual-switches nil
230 "The value of `dired-listing-switches' used to make this buffer's text.")
232 (defvar dired-re-inode-size "[0-9 \t]*"
233 "Regexp for optional initial inode and file size as made by `ls -i -s'.")
235 ;; These regexps must be tested at beginning-of-line, but are also
236 ;; used to search for next matches, so neither omitting "^" nor
237 ;; replacing "^" by "\n" (to make it slightly faster) will work.
239 (defvar dired-re-mark "^[^ \n]")
240 ;; "Regexp matching a marked line.
241 ;; Important: the match ends just after the marker."
242 (defvar dired-re-maybe-mark "^. ")
243 ;; The [^:] part after "d" and "l" is to avoid confusion with the
244 ;; DOS/Windows-style drive letters in directory names, like in "d:/foo".
245 (defvar dired-re-dir (concat dired-re-maybe-mark dired-re-inode-size "d[^:]"))
246 (defvar dired-re-sym (concat dired-re-maybe-mark dired-re-inode-size "l[^:]"))
247 (defvar dired-re-exe;; match ls permission string of an executable file
248 (mapconcat (function
249 (lambda (x)
250 (concat dired-re-maybe-mark dired-re-inode-size x)))
251 '("-[-r][-w][xs][-r][-w].[-r][-w]."
252 "-[-r][-w].[-r][-w][xs][-r][-w]."
253 "-[-r][-w].[-r][-w].[-r][-w][xst]")
254 "\\|"))
255 (defvar dired-re-perms "[-bcdlps][-r][-w].[-r][-w].[-r][-w].")
256 (defvar dired-re-dot "^.* \\.\\.?$")
258 ;; The subdirectory names in this list are expanded.
259 (defvar dired-subdir-alist nil
260 "Association list of subdirectories and their buffer positions.
261 Each subdirectory has an element: (DIRNAME . STARTMARKER).
262 The order of elements is the reverse of the order in the buffer.
263 In simple cases, this list contains one element.")
265 (defvar dired-subdir-regexp "^. \\([^\n\r]+\\)\\(:\\)[\n\r]"
266 "Regexp matching a maybe hidden subdirectory line in `ls -lR' output.
267 Subexpression 1 is the subdirectory proper, no trailing colon.
268 The match starts at the beginning of the line and ends after the end
269 of the line (\\n or \\r).
270 Subexpression 2 must end right before the \\n or \\r.")
272 (defvar dired-font-lock-keywords
273 (list
275 ;; Directory headers.
276 (list dired-subdir-regexp '(1 font-lock-type-face))
278 ;; We make heavy use of MATCH-ANCHORED, since the regexps don't identify the
279 ;; file name itself. We search for Dired defined regexps, and then use the
280 ;; Dired defined function `dired-move-to-filename' before searching for the
281 ;; simple regexp ".+". It is that regexp which matches the file name.
283 ;; Dired marks.
284 (list dired-re-mark
285 '(0 font-lock-constant-face)
286 '(".+" (dired-move-to-filename) nil (0 font-lock-warning-face)))
287 ;; People who are paranoid about security would consider this more
288 ;; important than other things such as whether it is a directory.
289 ;; But we don't want to encourage paranoia, so our default
290 ;; should be what's most useful for non-paranoids. -- rms.
291 ;;; ;;
292 ;;; ;; Files that are group or world writable.
293 ;;; (list (concat dired-re-maybe-mark dired-re-inode-size
294 ;;; "\\([-d]\\(....w....\\|.......w.\\)\\)")
295 ;;; '(1 font-lock-comment-face)
296 ;;; '(".+" (dired-move-to-filename) nil (0 font-lock-comment-face)))
298 ;; Subdirectories.
299 (list dired-re-dir
300 '(".+" (dired-move-to-filename) nil (0 font-lock-function-name-face)))
302 ;; Symbolic links.
303 (list dired-re-sym
304 '(".+" (dired-move-to-filename) nil (0 font-lock-keyword-face)))
306 ;; Files suffixed with `completion-ignored-extensions'.
307 '(eval .
308 ;; It is quicker to first find just an extension, then go back to the
309 ;; start of that file name. So we do this complex MATCH-ANCHORED form.
310 (list (concat "\\(" (regexp-opt completion-ignored-extensions) "\\|#\\)$")
311 '(".+" (dired-move-to-filename) nil (0 font-lock-string-face)))))
312 "Additional expressions to highlight in Dired mode.")
314 ;;; Macros must be defined before they are used, for the byte compiler.
316 ;; Mark all files for which CONDITION evals to non-nil.
317 ;; CONDITION is evaluated on each line, with point at beginning of line.
318 ;; MSG is a noun phrase for the type of files being marked.
319 ;; It should end with a noun that can be pluralized by adding `s'.
320 ;; Return value is the number of files marked, or nil if none were marked.
321 (defmacro dired-mark-if (predicate msg)
322 `(let (buffer-read-only count)
323 (save-excursion
324 (setq count 0)
325 (if ,msg (message "Marking %ss..." ,msg))
326 (goto-char (point-min))
327 (while (not (eobp))
328 (if ,predicate
329 (progn
330 (delete-char 1)
331 (insert dired-marker-char)
332 (setq count (1+ count))))
333 (forward-line 1))
334 (if ,msg (message "%s %s%s %s%s."
335 count
336 ,msg
337 (dired-plural-s count)
338 (if (eq dired-marker-char ?\040) "un" "")
339 (if (eq dired-marker-char dired-del-marker)
340 "flagged" "marked"))))
341 (and (> count 0) count)))
343 (defmacro dired-map-over-marks (body arg &optional show-progress)
344 "Eval BODY with point on each marked line. Return a list of BODY's results.
345 If no marked file could be found, execute BODY on the current line.
346 If ARG is an integer, use the next ARG (or previous -ARG, if ARG<0)
347 files instead of the marked files.
348 In that case point is dragged along. This is so that commands on
349 the next ARG (instead of the marked) files can be chained easily.
350 If ARG is otherwise non-nil, use current file instead.
351 If optional third arg SHOW-PROGRESS evaluates to non-nil,
352 redisplay the dired buffer after each file is processed.
353 No guarantee is made about the position on the marked line.
354 BODY must ensure this itself if it depends on this.
355 Search starts at the beginning of the buffer, thus the car of the list
356 corresponds to the line nearest to the buffer's bottom. This
357 is also true for (positive and negative) integer values of ARG.
358 BODY should not be too long as it is expanded four times."
360 ;;Warning: BODY must not add new lines before point - this may cause an
361 ;;endless loop.
362 ;;This warning should not apply any longer, sk 2-Sep-1991 14:10.
363 `(prog1
364 (let (buffer-read-only case-fold-search found results)
365 (if ,arg
366 (if (integerp ,arg)
367 (progn ;; no save-excursion, want to move point.
368 (dired-repeat-over-lines
369 ,arg
370 (function (lambda ()
371 (if ,show-progress (sit-for 0))
372 (setq results (cons ,body results)))))
373 (if (< ,arg 0)
374 (nreverse results)
375 results))
376 ;; non-nil, non-integer ARG means use current file:
377 (list ,body))
378 (let ((regexp (dired-marker-regexp)) next-position)
379 (save-excursion
380 (goto-char (point-min))
381 ;; remember position of next marked file before BODY
382 ;; can insert lines before the just found file,
383 ;; confusing us by finding the same marked file again
384 ;; and again and...
385 (setq next-position (and (re-search-forward regexp nil t)
386 (point-marker))
387 found (not (null next-position)))
388 (while next-position
389 (goto-char next-position)
390 (if ,show-progress (sit-for 0))
391 (setq results (cons ,body results))
392 ;; move after last match
393 (goto-char next-position)
394 (forward-line 1)
395 (set-marker next-position nil)
396 (setq next-position (and (re-search-forward regexp nil t)
397 (point-marker)))))
398 (if found
399 results
400 (list ,body)))))
401 ;; save-excursion loses, again
402 (dired-move-to-filename)))
404 (defun dired-get-marked-files (&optional localp arg filter)
405 "Return the marked files' names as list of strings.
406 The list is in the same order as the buffer, that is, the car is the
407 first marked file.
408 Values returned are normally absolute file names.
409 Optional arg LOCALP as in `dired-get-filename'.
410 Optional second argument ARG specifies files near point
411 instead of marked files. If ARG is an integer, use the next ARG files.
412 If ARG is otherwise non-nil, use file. Usually ARG comes from
413 the command's prefix arg.
414 Optional third argument FILTER, if non-nil, is a function to select
415 some of the files--those for which (funcall FILTER FILENAME) is non-nil."
416 (let ((all-of-them
417 (save-excursion
418 (dired-map-over-marks (dired-get-filename localp) arg)))
419 result)
420 (if (not filter)
421 (nreverse all-of-them)
422 (dolist (file all-of-them)
423 (if (funcall filter file)
424 (push file result)))
425 result)))
427 ;; The dired command
429 (defun dired-read-dir-and-switches (str)
430 ;; For use in interactive.
431 (reverse (list
432 (if current-prefix-arg
433 (read-string "Dired listing switches: "
434 dired-listing-switches))
435 (read-file-name (format "Dired %s(directory): " str)
436 nil default-directory nil))))
438 ;;;###autoload (define-key ctl-x-map "d" 'dired)
439 ;;;###autoload
440 (defun dired (dirname &optional switches)
441 "\"Edit\" directory DIRNAME--delete, rename, print, etc. some files in it.
442 Optional second argument SWITCHES specifies the `ls' options used.
443 \(Interactively, use a prefix argument to be able to specify SWITCHES.)
444 Dired displays a list of files in DIRNAME (which may also have
445 shell wildcards appended to select certain files). If DIRNAME is a cons,
446 its first element is taken as the directory name and the rest as an explicit
447 list of files to make directory entries for.
448 \\<dired-mode-map>\
449 You can move around in it with the usual commands.
450 You can flag files for deletion with \\[dired-flag-file-deletion] and then
451 delete them by typing \\[dired-do-flagged-delete].
452 Type \\[describe-mode] after entering dired for more info.
454 If DIRNAME is already in a dired buffer, that buffer is used without refresh."
455 ;; Cannot use (interactive "D") because of wildcards.
456 (interactive (dired-read-dir-and-switches ""))
457 (switch-to-buffer (dired-noselect dirname switches)))
459 ;;;###autoload (define-key ctl-x-4-map "d" 'dired-other-window)
460 ;;;###autoload
461 (defun dired-other-window (dirname &optional switches)
462 "\"Edit\" directory DIRNAME. Like `dired' but selects in another window."
463 (interactive (dired-read-dir-and-switches "in other window "))
464 (switch-to-buffer-other-window (dired-noselect dirname switches)))
466 ;;;###autoload (define-key ctl-x-5-map "d" 'dired-other-frame)
467 ;;;###autoload
468 (defun dired-other-frame (dirname &optional switches)
469 "\"Edit\" directory DIRNAME. Like `dired' but makes a new frame."
470 (interactive (dired-read-dir-and-switches "in other frame "))
471 (switch-to-buffer-other-frame (dired-noselect dirname switches)))
473 ;;;###autoload
474 (defun dired-noselect (dir-or-list &optional switches)
475 "Like `dired' but returns the dired buffer as value, does not select it."
476 (or dir-or-list (setq dir-or-list default-directory))
477 ;; This loses the distinction between "/foo/*/" and "/foo/*" that
478 ;; some shells make:
479 (let (dirname initially-was-dirname)
480 (if (consp dir-or-list)
481 (setq dirname (car dir-or-list))
482 (setq dirname dir-or-list))
483 (setq initially-was-dirname
484 (string= (file-name-as-directory dirname) dirname))
485 (setq dirname (abbreviate-file-name
486 (expand-file-name (directory-file-name dirname))))
487 (if find-file-visit-truename
488 (setq dirname (file-truename dirname)))
489 ;; If the argument was syntactically a directory name not a file name,
490 ;; or if it happens to name a file that is a directory,
491 ;; convert it syntactically to a directory name.
492 ;; The reason for checking initially-was-dirname
493 ;; and not just file-directory-p
494 ;; is that file-directory-p is slow over ftp.
495 (if (or initially-was-dirname (file-directory-p dirname))
496 (setq dirname (file-name-as-directory dirname)))
497 (if (consp dir-or-list)
498 (setq dir-or-list (cons dirname (cdr dir-or-list)))
499 (setq dir-or-list dirname))
500 (dired-internal-noselect dir-or-list switches)))
502 ;; Separate function from dired-noselect for the sake of dired-vms.el.
503 (defun dired-internal-noselect (dir-or-list &optional switches mode)
504 ;; If there is an existing dired buffer for DIRNAME, just leave
505 ;; buffer as it is (don't even call dired-revert).
506 ;; This saves time especially for deep trees or with ange-ftp.
507 ;; The user can type `g'easily, and it is more consistent with find-file.
508 ;; But if SWITCHES are given they are probably different from the
509 ;; buffer's old value, so call dired-sort-other, which does
510 ;; revert the buffer.
511 ;; A pity we can't possibly do "Directory has changed - refresh? "
512 ;; like find-file does.
513 ;; Optional argument MODE is passed to dired-find-buffer-nocreate,
514 ;; see there.
515 (let* (dirname
516 buffer
517 ;; note that buffer already is in dired-mode, if found
518 new-buffer-p
519 (old-buf (current-buffer)))
520 (if (consp dir-or-list)
521 (setq dirname (car dir-or-list))
522 (setq dirname dir-or-list))
523 ;; Look for an existing buffer.
524 (setq buffer (dired-find-buffer-nocreate dirname mode)
525 new-buffer-p (null buffer))
526 (or buffer
527 (let ((default-major-mode 'fundamental-mode))
528 ;; We don't want default-major-mode to run hooks and set auto-fill
529 ;; or whatever, now that dired-mode does not
530 ;; kill-all-local-variables any longer.
531 (setq buffer (create-file-buffer (directory-file-name dirname)))))
532 (set-buffer buffer)
533 (if (not new-buffer-p) ; existing buffer ...
534 (cond (switches ; ... but new switches
535 ;; file list may have changed
536 (setq dired-directory dir-or-list)
537 ;; this calls dired-revert
538 (dired-sort-other switches))
539 ;; If directory has changed on disk, offer to revert.
540 ((if (let ((attributes (file-attributes dirname))
541 (modtime (visited-file-modtime)))
542 (or (eq modtime 0)
543 (not (eq (car attributes) t))
544 (and (= (car (nth 5 attributes)) (car modtime))
545 (= (nth 1 (nth 5 attributes)) (cdr modtime)))))
547 (message "%s"
548 (substitute-command-keys
549 "Directory has changed on disk; type \\[revert-buffer] to update Dired")))))
550 ;; Else a new buffer
551 (setq default-directory
552 ;; We can do this unconditionally
553 ;; because dired-noselect ensures that the name
554 ;; is passed in directory name syntax
555 ;; if it was the name of a directory at all.
556 (file-name-directory dirname))
557 (or switches (setq switches dired-listing-switches))
558 (if mode (funcall mode)
559 (dired-mode dir-or-list switches))
560 ;; default-directory and dired-actual-switches are set now
561 ;; (buffer-local), so we can call dired-readin:
562 (let ((failed t))
563 (unwind-protect
564 (progn (dired-readin)
565 (setq failed nil))
566 ;; dired-readin can fail if parent directories are inaccessible.
567 ;; Don't leave an empty buffer around in that case.
568 (if failed (kill-buffer buffer))))
569 (goto-char (point-min))
570 (dired-initial-position dirname))
571 (set-buffer old-buf)
572 buffer))
574 (defvar dired-buffers nil
575 ;; Enlarged by dired-advertise
576 ;; Queried by function dired-buffers-for-dir. When this detects a
577 ;; killed buffer, it is removed from this list.
578 "Alist of expanded directories and their associated dired buffers.")
580 (defun dired-find-buffer-nocreate (dirname &optional mode)
581 ;; This differs from dired-buffers-for-dir in that it does not consider
582 ;; subdirs of default-directory and searches for the first match only.
583 ;; Also, the major mode must be MODE.
584 (setq dirname (expand-file-name dirname))
585 (let (found (blist dired-buffers)) ; was (buffer-list)
586 (or mode (setq mode 'dired-mode))
587 (while blist
588 (if (null (buffer-name (cdr (car blist))))
589 (setq blist (cdr blist))
590 (save-excursion
591 (set-buffer (cdr (car blist)))
592 (if (and (eq major-mode mode)
593 dired-directory ;; nil during find-alternate-file
594 (equal dirname
595 (expand-file-name
596 (if (consp dired-directory)
597 (car dired-directory)
598 dired-directory))))
599 (setq found (cdr (car blist))
600 blist nil)
601 (setq blist (cdr blist))))))
602 found))
605 ;; Read in a new dired buffer
607 ;; dired-readin differs from dired-insert-subdir in that it accepts
608 ;; wildcards, erases the buffer, and builds the subdir-alist anew
609 ;; (including making it buffer-local and clearing it first).
610 (defun dired-readin ()
611 ;; default-directory and dired-actual-switches must be buffer-local
612 ;; and initialized by now.
613 (let (dirname)
614 (if (consp dired-directory)
615 (setq dirname (car dired-directory))
616 (setq dirname dired-directory))
617 (setq dirname (expand-file-name dirname))
618 (save-excursion
619 ;; This hook which may want to modify dired-actual-switches
620 ;; based on dired-directory, e.g. with ange-ftp to a SysV host
621 ;; where ls won't understand -Al switches.
622 (run-hooks 'dired-before-readin-hook)
623 (message "Reading directory %s..." dirname)
624 (if (consp buffer-undo-list)
625 (setq buffer-undo-list nil))
626 (let (buffer-read-only
627 ;; Don't make undo entries for readin.
628 (buffer-undo-list t))
629 (widen)
630 (erase-buffer)
631 (dired-readin-insert))
632 (message "Reading directory %s...done" dirname)
633 (goto-char (point-min))
634 ;; Must first make alist buffer local and set it to nil because
635 ;; dired-build-subdir-alist will call dired-clear-alist first
636 (set (make-local-variable 'dired-subdir-alist) nil)
637 (dired-build-subdir-alist)
638 (let ((attributes (file-attributes dirname)))
639 (if (eq (car attributes) t)
640 (set-visited-file-modtime (nth 5 attributes))))
641 (set-buffer-modified-p nil)
642 ;; No need to narrow since the whole buffer contains just
643 ;; dired-readin's output, nothing else. The hook can
644 ;; successfully use dired functions (e.g. dired-get-filename)
645 ;; as the subdir-alist has been built in dired-readin.
646 (run-hooks 'dired-after-readin-hook))))
648 ;; Subroutines of dired-readin
650 (defun dired-readin-insert ()
651 ;; Insert listing for the specified dir (and maybe file list)
652 ;; already in dired-directory, assuming a clean buffer.
653 (let (dir file-list)
654 (if (consp dired-directory)
655 (setq dir (car dired-directory)
656 file-list (cdr dired-directory))
657 (setq dir dired-directory
658 file-list nil))
659 (setq dir (expand-file-name dir))
660 (if (and (equal "" (file-name-nondirectory dir))
661 (not file-list))
662 ;; If we are reading a whole single directory...
663 (dired-insert-directory dir dired-actual-switches nil nil t)
664 (if (not (file-readable-p
665 (directory-file-name (file-name-directory dir))))
666 (error "Directory %s inaccessible or nonexistent" dir)
667 ;; Else treat it as a wildcard spec
668 ;; unless we have an explicit list of files.
669 (dired-insert-directory dir dired-actual-switches
670 file-list (not file-list) t)))))
672 (defun dired-insert-directory (dir switches &optional file-list wildcard hdr)
673 "Insert a directory listing of DIR, Dired style.
674 Use SWITCHES to make the listings.
675 If FILE-LIST is non-nil, list only those files.
676 Otherwise, if WILDCARD is non-nil, expand wildcards;
677 in that case, DIR should be a file name that uses wildcards.
678 In other cases, DIR should be a directory name or a directory filename.
679 If HDR is non-nil, insert a header line with the directory name."
680 (let ((opoint (point))
681 (process-environment (copy-sequence process-environment))
682 end)
683 (if (or dired-use-ls-dired (file-remote-p dir))
684 (setq switches (concat "--dired " switches)))
685 ;; We used to specify the C locale here, to force English month names;
686 ;; but this should not be necessary any more,
687 ;; with the new value of dired-move-to-filename-regexp.
688 (if file-list
689 (dolist (f file-list)
690 (insert-directory f switches nil nil))
691 (insert-directory dir switches wildcard (not wildcard)))
692 ;; Quote certain characters, unless ls quoted them for us.
693 (if (not (string-match "b" dired-actual-switches))
694 (save-excursion
695 (setq end (point-marker))
696 (goto-char opoint)
697 (while (search-forward "\\" end t)
698 (replace-match (apply #'propertize
699 "\\\\"
700 (text-properties-at (match-beginning 0)))
701 nil t))
702 (goto-char opoint)
703 (while (search-forward "\^m" end t)
704 (replace-match (apply #'propertize
705 "\\015"
706 (text-properties-at (match-beginning 0)))
707 nil t))
708 (set-marker end nil)))
709 (dired-insert-set-properties opoint (point))
710 ;; If we used --dired and it worked, the lines are already indented.
711 ;; Otherwise, indent them.
712 (unless (save-excursion
713 (goto-char opoint)
714 (looking-at " "))
715 (let ((indent-tabs-mode nil))
716 (indent-rigidly opoint (point) 2)))
717 ;; Insert text at the beginning to standardize things.
718 (save-excursion
719 (goto-char opoint)
720 (if (and (or hdr wildcard) (not (looking-at "^ /.*:$")))
721 ;; Note that dired-build-subdir-alist will replace the name
722 ;; by its expansion, so it does not matter whether what we insert
723 ;; here is fully expanded, but it should be absolute.
724 (insert " " (directory-file-name (file-name-directory dir)) ":\n"))
725 (when wildcard
726 ;; Insert "wildcard" line where "total" line would be for a full dir.
727 (insert " wildcard " (file-name-nondirectory dir) "\n")))))
729 ;; Make the file names highlight when the mouse is on them.
730 (defun dired-insert-set-properties (beg end)
731 (save-excursion
732 (goto-char beg)
733 (while (< (point) end)
734 (condition-case nil
735 (if (dired-move-to-filename)
736 (add-text-properties
737 (point)
738 (save-excursion
739 (dired-move-to-end-of-filename)
740 (point))
741 '(mouse-face highlight
742 help-echo "mouse-2: visit this file in other window")))
743 (error nil))
744 (forward-line 1))))
746 ;; Reverting a dired buffer
748 (defun dired-revert (&optional arg noconfirm)
749 ;; Reread the dired buffer. Must also be called after
750 ;; dired-actual-switches have changed.
751 ;; Should not fail even on completely garbaged buffers.
752 ;; Preserves old cursor, marks/flags, hidden-p.
753 (widen) ; just in case user narrowed
754 (let ((opoint (point))
755 (ofile (dired-get-filename nil t))
756 (mark-alist nil) ; save marked files
757 (hidden-subdirs (dired-remember-hidden))
758 (old-subdir-alist (cdr (reverse dired-subdir-alist))) ; except pwd
759 (case-fold-search nil) ; we check for upper case ls flags
760 buffer-read-only)
761 (goto-char (point-min))
762 (setq mark-alist;; only after dired-remember-hidden since this unhides:
763 (dired-remember-marks (point-min) (point-max)))
764 ;; treat top level dir extra (it may contain wildcards)
765 (dired-uncache
766 (if (consp dired-directory) (car dired-directory) dired-directory))
767 (dired-readin)
768 (let ((dired-after-readin-hook nil))
769 ;; don't run that hook for each subdir...
770 (dired-insert-old-subdirs old-subdir-alist))
771 (dired-mark-remembered mark-alist) ; mark files that were marked
772 ;; ... run the hook for the whole buffer, and only after markers
773 ;; have been reinserted (else omitting in dired-x would omit marked files)
774 (run-hooks 'dired-after-readin-hook) ; no need to narrow
775 (or (and ofile (dired-goto-file ofile)) ; move cursor to where it
776 (goto-char opoint)) ; was before
777 (dired-move-to-filename)
778 (save-excursion ; hide subdirs that were hidden
779 (mapcar (function (lambda (dir)
780 (if (dired-goto-subdir dir)
781 (dired-hide-subdir 1))))
782 hidden-subdirs)))
783 ;; outside of the let scope
784 ;;; Might as well not override the user if the user changed this.
785 ;;; (setq buffer-read-only t)
788 ;; Subroutines of dired-revert
789 ;; Some of these are also used when inserting subdirs.
791 (defun dired-remember-marks (beg end)
792 ;; Return alist of files and their marks, from BEG to END.
793 (if selective-display ; must unhide to make this work.
794 (let (buffer-read-only)
795 (subst-char-in-region beg end ?\r ?\n)))
796 (let (fil chr alist)
797 (save-excursion
798 (goto-char beg)
799 (while (re-search-forward dired-re-mark end t)
800 (if (setq fil (dired-get-filename nil t))
801 (setq chr (preceding-char)
802 alist (cons (cons fil chr) alist)))))
803 alist))
805 ;; Mark all files remembered in ALIST.
806 ;; Each element of ALIST looks like (FILE . MARKERCHAR).
807 (defun dired-mark-remembered (alist)
808 (let (elt fil chr)
809 (while alist
810 (setq elt (car alist)
811 alist (cdr alist)
812 fil (car elt)
813 chr (cdr elt))
814 (if (dired-goto-file fil)
815 (save-excursion
816 (beginning-of-line)
817 (delete-char 1)
818 (insert chr))))))
820 ;; Return a list of names of subdirs currently hidden.
821 (defun dired-remember-hidden ()
822 (let ((l dired-subdir-alist) dir pos result)
823 (while l
824 (setq dir (car (car l))
825 pos (cdr (car l))
826 l (cdr l))
827 (goto-char pos)
828 (skip-chars-forward "^\r\n")
829 (if (eq (following-char) ?\r)
830 (setq result (cons dir result))))
831 result))
833 ;; Try to insert all subdirs that were displayed before,
834 ;; according to the former subdir alist OLD-SUBDIR-ALIST.
835 (defun dired-insert-old-subdirs (old-subdir-alist)
836 (or (string-match "R" dired-actual-switches)
837 (let (elt dir)
838 (while old-subdir-alist
839 (setq elt (car old-subdir-alist)
840 old-subdir-alist (cdr old-subdir-alist)
841 dir (car elt))
842 (condition-case ()
843 (progn
844 (dired-uncache dir)
845 (dired-insert-subdir dir))
846 (error nil))))))
848 ;; Remove directory DIR from any directory cache.
849 (defun dired-uncache (dir)
850 (let ((handler (find-file-name-handler dir 'dired-uncache)))
851 (if handler
852 (funcall handler 'dired-uncache dir))))
854 ;; dired mode key bindings and initialization
856 (defvar dired-mode-map nil "Local keymap for dired-mode buffers.")
857 (if dired-mode-map
859 ;; This looks ugly when substitute-command-keys uses C-d instead d:
860 ;; (define-key dired-mode-map "\C-d" 'dired-flag-file-deletion)
862 (let ((map (make-keymap)))
863 (suppress-keymap map)
864 (define-key map [mouse-2] 'dired-mouse-find-file-other-window)
865 ;; Commands to mark or flag certain categories of files
866 (define-key map "#" 'dired-flag-auto-save-files)
867 (define-key map "." 'dired-clean-directory)
868 (define-key map "~" 'dired-flag-backup-files)
869 (define-key map "&" 'dired-flag-garbage-files)
870 ;; Upper case keys (except !) for operating on the marked files
871 (define-key map "A" 'dired-do-search)
872 (define-key map "C" 'dired-do-copy)
873 (define-key map "B" 'dired-do-byte-compile)
874 (define-key map "D" 'dired-do-delete)
875 (define-key map "G" 'dired-do-chgrp)
876 (define-key map "H" 'dired-do-hardlink)
877 (define-key map "L" 'dired-do-load)
878 (define-key map "M" 'dired-do-chmod)
879 (define-key map "O" 'dired-do-chown)
880 (define-key map "P" 'dired-do-print)
881 (define-key map "Q" 'dired-do-query-replace-regexp)
882 (define-key map "R" 'dired-do-rename)
883 (define-key map "S" 'dired-do-symlink)
884 (define-key map "X" 'dired-do-shell-command)
885 (define-key map "Z" 'dired-do-compress)
886 (define-key map "!" 'dired-do-shell-command)
887 ;; Comparison commands
888 (define-key map "=" 'dired-diff)
889 (define-key map "\M-=" 'dired-backup-diff)
890 ;; Tree Dired commands
891 (define-key map "\M-\C-?" 'dired-unmark-all-files)
892 (define-key map "\M-\C-d" 'dired-tree-down)
893 (define-key map "\M-\C-u" 'dired-tree-up)
894 (define-key map "\M-\C-n" 'dired-next-subdir)
895 (define-key map "\M-\C-p" 'dired-prev-subdir)
896 ;; move to marked files
897 (define-key map "\M-{" 'dired-prev-marked-file)
898 (define-key map "\M-}" 'dired-next-marked-file)
899 ;; Make all regexp commands share a `%' prefix:
900 ;; We used to get to the submap via a symbol dired-regexp-prefix,
901 ;; but that seems to serve little purpose, and copy-keymap
902 ;; does a better job without it.
903 (define-key map "%" nil)
904 (define-key map "%u" 'dired-upcase)
905 (define-key map "%l" 'dired-downcase)
906 (define-key map "%d" 'dired-flag-files-regexp)
907 (define-key map "%g" 'dired-mark-files-containing-regexp)
908 (define-key map "%m" 'dired-mark-files-regexp)
909 (define-key map "%r" 'dired-do-rename-regexp)
910 (define-key map "%C" 'dired-do-copy-regexp)
911 (define-key map "%H" 'dired-do-hardlink-regexp)
912 (define-key map "%R" 'dired-do-rename-regexp)
913 (define-key map "%S" 'dired-do-symlink-regexp)
914 ;; Commands for marking and unmarking.
915 (define-key map "*" nil)
916 (define-key map "**" 'dired-mark-executables)
917 (define-key map "*/" 'dired-mark-directories)
918 (define-key map "*@" 'dired-mark-symlinks)
919 (define-key map "*%" 'dired-mark-files-regexp)
920 (define-key map "*c" 'dired-change-marks)
921 (define-key map "*s" 'dired-mark-subdir-files)
922 (define-key map "*m" 'dired-mark)
923 (define-key map "*u" 'dired-unmark)
924 (define-key map "*?" 'dired-unmark-all-files)
925 (define-key map "*!" 'dired-unmark-all-marks)
926 (define-key map "*\177" 'dired-unmark-backward)
927 (define-key map "*\C-n" 'dired-next-marked-file)
928 (define-key map "*\C-p" 'dired-prev-marked-file)
929 (define-key map "*t" 'dired-toggle-marks)
930 ;; Lower keys for commands not operating on all the marked files
931 (define-key map "a" 'dired-find-alternate-file)
932 (define-key map "d" 'dired-flag-file-deletion)
933 (define-key map "e" 'dired-find-file)
934 (define-key map "f" 'dired-find-file)
935 (define-key map "\C-m" 'dired-advertised-find-file)
936 (define-key map "g" 'revert-buffer)
937 (define-key map "h" 'describe-mode)
938 (define-key map "i" 'dired-maybe-insert-subdir)
939 (define-key map "k" 'dired-do-kill-lines)
940 (define-key map "l" 'dired-do-redisplay)
941 (define-key map "m" 'dired-mark)
942 (define-key map "n" 'dired-next-line)
943 (define-key map "o" 'dired-find-file-other-window)
944 (define-key map "\C-o" 'dired-display-file)
945 (define-key map "p" 'dired-previous-line)
946 (define-key map "q" 'quit-window)
947 (define-key map "s" 'dired-sort-toggle-or-edit)
948 (define-key map "t" 'dired-toggle-marks)
949 (define-key map "u" 'dired-unmark)
950 (define-key map "v" 'dired-view-file)
951 (define-key map "w" 'dired-copy-filename-as-kill)
952 (define-key map "x" 'dired-do-flagged-delete)
953 (define-key map "y" 'dired-show-file-type)
954 (define-key map "+" 'dired-create-directory)
955 ;; moving
956 (define-key map "<" 'dired-prev-dirline)
957 (define-key map ">" 'dired-next-dirline)
958 (define-key map "^" 'dired-up-directory)
959 (define-key map " " 'dired-next-line)
960 (define-key map "\C-n" 'dired-next-line)
961 (define-key map "\C-p" 'dired-previous-line)
962 (define-key map [down] 'dired-next-line)
963 (define-key map [up] 'dired-previous-line)
964 ;; hiding
965 (define-key map "$" 'dired-hide-subdir)
966 (define-key map "\M-$" 'dired-hide-all)
967 ;; misc
968 (define-key map "?" 'dired-summary)
969 (define-key map "\177" 'dired-unmark-backward)
970 (define-key map "\C-_" 'dired-undo)
971 (define-key map "\C-xu" 'dired-undo)
973 ;; Make menu bar items.
975 ;; No need to fo this, now that top-level items are fewer.
976 ;;;;
977 ;; Get rid of the Edit menu bar item to save space.
978 ;(define-key map [menu-bar edit] 'undefined)
980 (define-key map [menu-bar subdir]
981 (cons "Subdir" (make-sparse-keymap "Subdir")))
983 (define-key map [menu-bar subdir hide-all]
984 '(menu-item "Hide All" dired-hide-all
985 :help "Hide all subdirectories, leave only header lines"))
986 (define-key map [menu-bar subdir hide-subdir]
987 '(menu-item "Hide/UnHide Subdir" dired-hide-subdir
988 :help "Hide or unhide current directory listing"))
989 (define-key map [menu-bar subdir tree-down]
990 '(menu-item "Tree Down" dired-tree-down
991 :help "Go to first subdirectory header down the tree"))
992 (define-key map [menu-bar subdir tree-up]
993 '(menu-item "Tree Up" dired-tree-up
994 :help "Go to first subdirectory header up the tree"))
995 (define-key map [menu-bar subdir up]
996 '(menu-item "Up Directory" dired-up-directory
997 :help "Edit the parent directory"))
998 (define-key map [menu-bar subdir prev-subdir]
999 '(menu-item "Prev Subdir" dired-prev-subdir
1000 :help "Go to previous subdirectory header line"))
1001 (define-key map [menu-bar subdir next-subdir]
1002 '(menu-item "Next Subdir" dired-next-subdir
1003 :help "Go to next subdirectory header line"))
1004 (define-key map [menu-bar subdir prev-dirline]
1005 '(menu-item "Prev Dirline" dired-prev-dirline
1006 :help "Move to next directory-file line"))
1007 (define-key map [menu-bar subdir next-dirline]
1008 '(menu-item "Next Dirline" dired-next-dirline
1009 :help "Move to previous directory-file line"))
1010 (define-key map [menu-bar subdir insert]
1011 '(menu-item "Insert This Subdir" dired-maybe-insert-subdir
1012 :help "Insert contents of subdirectory"))
1014 (define-key map [menu-bar immediate]
1015 (cons "Immediate" (make-sparse-keymap "Immediate")))
1017 (define-key map [menu-bar immediate revert-buffer]
1018 '(menu-item "Refresh" revert-buffer
1019 :help "Update contents of shown directories"))
1021 (define-key map [menu-bar immediate dashes]
1022 '("--"))
1024 (define-key map [menu-bar immediate backup-diff]
1025 '(menu-item "Compare with Backup" dired-backup-diff
1026 :help "Diff file at cursor with its latest backup"))
1027 (define-key map [menu-bar immediate diff]
1028 '(menu-item "Diff..." dired-diff
1029 :help "Compare file at cursor with another file"))
1030 (define-key map [menu-bar immediate view]
1031 '(menu-item "View This File" dired-view-file
1032 :help "Examine file at cursor in read-only mode"))
1033 (define-key map [menu-bar immediate display]
1034 '(menu-item "Display in Other Window" dired-display-file
1035 :help "Display file at cursor in other window"))
1036 (define-key map [menu-bar immediate find-file-other-window]
1037 '(menu-item "Find in Other Window" dired-find-file-other-window
1038 :help "Edit file at cursor in other window"))
1039 (define-key map [menu-bar immediate find-file]
1040 '(menu-item "Find This File" dired-find-file
1041 :help "Edit file at cursor"))
1042 (define-key map [menu-bar immediate create-directory]
1043 '(menu-item "Create Directory..." dired-create-directory))
1045 (define-key map [menu-bar regexp]
1046 (cons "Regexp" (make-sparse-keymap "Regexp")))
1048 (define-key map [menu-bar regexp downcase]
1049 '(menu-item "Downcase" dired-downcase
1050 ;; When running on plain MS-DOS, there's only one
1051 ;; letter-case for file names.
1052 :enable (or (not (fboundp 'msdos-long-file-names))
1053 (msdos-long-file-names))
1054 :help "Rename marked files to lower-case name"))
1055 (define-key map [menu-bar regexp upcase]
1056 '(menu-item "Upcase" dired-upcase
1057 :enable (or (not (fboundp 'msdos-long-file-names))
1058 (msdos-long-file-names))
1059 :help "Rename marked files to upper-case name"))
1060 (define-key map [menu-bar regexp hardlink]
1061 '(menu-item "Hardlink..." dired-do-hardlink-regexp
1062 :help "Make hard links for files matching regexp"))
1063 (define-key map [menu-bar regexp symlink]
1064 '(menu-item "Symlink..." dired-do-symlink-regexp
1065 :visible (fboundp 'make-symbolic-link)
1066 :help "Make symbolic links for files matching regexp"))
1067 (define-key map [menu-bar regexp rename]
1068 '(menu-item "Rename..." dired-do-rename-regexp
1069 :help "Rename marked files matching regexp"))
1070 (define-key map [menu-bar regexp copy]
1071 '(menu-item "Copy..." dired-do-copy-regexp
1072 :help "Copy marked files matching regexp"))
1073 (define-key map [menu-bar regexp flag]
1074 '(menu-item "Flag..." dired-flag-files-regexp
1075 :help "Flag files matching regexp for deletion"))
1076 (define-key map [menu-bar regexp mark]
1077 '(menu-item "Mark..." dired-mark-files-regexp
1078 :help "Mark files matching regexp for future operations"))
1079 (define-key map [menu-bar regexp mark-cont]
1080 '(menu-item "Mark Containing..." dired-mark-files-containing-regexp
1081 :help "Mark files whose contents matches regexp"))
1083 (define-key map [menu-bar mark]
1084 (cons "Mark" (make-sparse-keymap "Mark")))
1086 (define-key map [menu-bar mark prev]
1087 '(menu-item "Previous Marked" dired-prev-marked-file
1088 :help "Move to previous marked file"))
1089 (define-key map [menu-bar mark next]
1090 '(menu-item "Next Marked" dired-next-marked-file
1091 :help "Move to next marked file"))
1092 (define-key map [menu-bar mark marks]
1093 '(menu-item "Change Marks..." dired-change-marks
1094 :help "Replace marker with another character"))
1095 (define-key map [menu-bar mark unmark-all]
1096 '(menu-item "Unmark All" dired-unmark-all-marks))
1097 (define-key map [menu-bar mark symlinks]
1098 '(menu-item "Mark Symlinks" dired-mark-symlinks
1099 :visible (fboundp 'make-symbolic-link)
1100 :help "Mark all symbolic links"))
1101 (define-key map [menu-bar mark directories]
1102 '(menu-item "Mark Directories" dired-mark-directories
1103 :help "Mark all directories except `.' and `..'"))
1104 (define-key map [menu-bar mark directory]
1105 '(menu-item "Mark Old Backups" dired-clean-directory
1106 :help "Flag old numbered backups for deletion"))
1107 (define-key map [menu-bar mark executables]
1108 '(menu-item "Mark Executables" dired-mark-executables
1109 :help "Mark all executable files"))
1110 (define-key map [menu-bar mark garbage-files]
1111 '(menu-item "Flag Garbage Files" dired-flag-garbage-files
1112 :help "Flag unneeded files for deletion"))
1113 (define-key map [menu-bar mark backup-files]
1114 '(menu-item "Flag Backup Files" dired-flag-backup-files
1115 :help "Flag all backup files for deletion"))
1116 (define-key map [menu-bar mark auto-save-files]
1117 '(menu-item "Flag Auto-save Files" dired-flag-auto-save-files
1118 :help "Flag auto-save files for deletion"))
1119 (define-key map [menu-bar mark deletion]
1120 '(menu-item "Flag" dired-flag-file-deletion
1121 :help "Flag current line's file for deletion"))
1122 (define-key map [menu-bar mark unmark]
1123 '(menu-item "Unmark" dired-unmark
1124 :help "Unmark or unflag current line's file"))
1125 (define-key map [menu-bar mark mark]
1126 '(menu-item "Mark" dired-mark
1127 :help "Mark current line's file for future operations"))
1128 (define-key map [menu-bar mark toggle-marks]
1129 '(menu-item "Toggle Marks" dired-toggle-marks
1130 :help "Mark unmarked files, unmark marked ones"))
1132 (define-key map [menu-bar operate]
1133 (cons "Operate" (make-sparse-keymap "Operate")))
1135 (define-key map [menu-bar operate query-replace]
1136 '(menu-item "Query Replace in Files..." dired-do-query-replace-regexp
1137 :help "Replace regexp in marked files"))
1138 (define-key map [menu-bar operate search]
1139 '(menu-item "Search Files..." dired-do-search
1140 :help "Search marked files for regexp"))
1141 (define-key map [menu-bar operate chown]
1142 '(menu-item "Change Owner..." dired-do-chown
1143 :visible (not (memq system-type '(ms-dos windows-nt)))
1144 :help "Change the owner of marked files"))
1145 (define-key map [menu-bar operate chgrp]
1146 '(menu-item "Change Group..." dired-do-chgrp
1147 :visible (not (memq system-type '(ms-dos windows-nt)))
1148 :help "Change the group of marked files"))
1149 (define-key map [menu-bar operate chmod]
1150 '(menu-item "Change Mode..." dired-do-chmod
1151 :help "Change mode (attributes) of marked files"))
1152 (define-key map [menu-bar operate load]
1153 '(menu-item "Load" dired-do-load
1154 :help "Load marked Emacs Lisp files"))
1155 (define-key map [menu-bar operate compile]
1156 '(menu-item "Byte-compile" dired-do-byte-compile
1157 :help "Byte-compile marked Emacs Lisp files"))
1158 (define-key map [menu-bar operate compress]
1159 '(menu-item "Compress" dired-do-compress
1160 :help "Compress/uncompress marked files"))
1161 (define-key map [menu-bar operate print]
1162 '(menu-item "Print..." dired-do-print
1163 :help "Ask for print command and print marked files"))
1164 (define-key map [menu-bar operate hardlink]
1165 '(menu-item "Hardlink to..." dired-do-hardlink
1166 :help "Make hard links for current or marked files"))
1167 (define-key map [menu-bar operate symlink]
1168 '(menu-item "Symlink to..." dired-do-symlink
1169 :visible (fboundp 'make-symbolic-link)
1170 :help "Make symbolic links for current or marked files"))
1171 (define-key map [menu-bar operate command]
1172 '(menu-item "Shell Command..." dired-do-shell-command
1173 :help "Run a shell command on each of marked files"))
1174 (define-key map [menu-bar operate delete]
1175 '(menu-item "Delete" dired-do-delete
1176 :help "Delete current file or all marked files"))
1177 (define-key map [menu-bar operate rename]
1178 '(menu-item "Rename to..." dired-do-rename
1179 :help "Rename current file or move marked files"))
1180 (define-key map [menu-bar operate copy]
1181 '(menu-item "Copy to..." dired-do-copy
1182 :help "Copy current file or all marked files"))
1184 (setq dired-mode-map map)))
1186 ;; Dired mode is suitable only for specially formatted data.
1187 (put 'dired-mode 'mode-class 'special)
1189 (defun dired-mode (&optional dirname switches)
1191 Mode for \"editing\" directory listings.
1192 In Dired, you are \"editing\" a list of the files in a directory and
1193 \(optionally) its subdirectories, in the format of `ls -lR'.
1194 Each directory is a page: use \\[backward-page] and \\[forward-page] to move pagewise.
1195 \"Editing\" means that you can run shell commands on files, visit,
1196 compress, load or byte-compile them, change their file attributes
1197 and insert subdirectories into the same buffer. You can \"mark\"
1198 files for later commands or \"flag\" them for deletion, either file
1199 by file or all files matching certain criteria.
1200 You can move using the usual cursor motion commands.\\<dired-mode-map>
1201 Letters no longer insert themselves. Digits are prefix arguments.
1202 Instead, type \\[dired-flag-file-deletion] to flag a file for Deletion.
1203 Type \\[dired-mark] to Mark a file or subdirectory for later commands.
1204 Most commands operate on the marked files and use the current file
1205 if no files are marked. Use a numeric prefix argument to operate on
1206 the next ARG (or previous -ARG if ARG<0) files, or just `1'
1207 to operate on the current file only. Prefix arguments override marks.
1208 Mark-using commands display a list of failures afterwards. Type \\[dired-summary]
1209 to see why something went wrong.
1210 Type \\[dired-unmark] to Unmark a file or all files of a subdirectory.
1211 Type \\[dired-unmark-backward] to back up one line and unflag.
1212 Type \\[dired-do-flagged-delete] to eXecute the deletions requested.
1213 Type \\[dired-advertised-find-file] to Find the current line's file
1214 (or dired it in another buffer, if it is a directory).
1215 Type \\[dired-find-file-other-window] to find file or dired directory in Other window.
1216 Type \\[dired-maybe-insert-subdir] to Insert a subdirectory in this buffer.
1217 Type \\[dired-do-rename] to Rename a file or move the marked files to another directory.
1218 Type \\[dired-do-copy] to Copy files.
1219 Type \\[dired-sort-toggle-or-edit] to toggle sorting by name/date or change the `ls' switches.
1220 Type \\[revert-buffer] to read all currently expanded directories again.
1221 This retains all marks and hides subdirs again that were hidden before.
1222 SPC and DEL can be used to move down and up by lines.
1224 If dired ever gets confused, you can either type \\[revert-buffer] \
1225 to read the
1226 directories again, type \\[dired-do-redisplay] \
1227 to relist a single or the marked files or a
1228 subdirectory, or type \\[dired-build-subdir-alist] to parse the buffer
1229 again for the directory tree.
1231 Customization variables (rename this buffer and type \\[describe-variable] on each line
1232 for more info):
1234 dired-listing-switches
1235 dired-trivial-filenames
1236 dired-shrink-to-fit
1237 dired-marker-char
1238 dired-del-marker
1239 dired-keep-marker-rename
1240 dired-keep-marker-copy
1241 dired-keep-marker-hardlink
1242 dired-keep-marker-symlink
1244 Hooks (use \\[describe-variable] to see their documentation):
1246 dired-before-readin-hook
1247 dired-after-readin-hook
1248 dired-mode-hook
1249 dired-load-hook
1251 Keybindings:
1252 \\{dired-mode-map}"
1253 ;; Not to be called interactively (e.g. dired-directory will be set
1254 ;; to default-directory, which is wrong with wildcards).
1255 (kill-all-local-variables)
1256 (use-local-map dired-mode-map)
1257 (dired-advertise) ; default-directory is already set
1258 (setq major-mode 'dired-mode
1259 mode-name "Dired"
1260 ;; case-fold-search nil
1261 buffer-read-only t
1262 selective-display t ; for subdirectory hiding
1263 mode-line-buffer-identification
1264 (propertized-buffer-identification "%17b"))
1265 (set (make-local-variable 'revert-buffer-function)
1266 (function dired-revert))
1267 (set (make-local-variable 'page-delimiter)
1268 "\n\n")
1269 (set (make-local-variable 'dired-directory)
1270 (or dirname default-directory))
1271 ;; list-buffers uses this to display the dir being edited in this buffer.
1272 (set (make-local-variable 'list-buffers-directory)
1273 (expand-file-name dired-directory))
1274 (set (make-local-variable 'dired-actual-switches)
1275 (or switches dired-listing-switches))
1276 (set (make-local-variable 'font-lock-defaults) '(dired-font-lock-keywords t))
1277 (dired-sort-other dired-actual-switches t)
1278 (run-hooks 'dired-mode-hook))
1280 ;; Idiosyncratic dired commands that don't deal with marks.
1282 (defun dired-summary ()
1283 "Summarize basic Dired commands and show recent Dired errors."
1284 (interactive)
1285 (dired-why)
1286 ;>> this should check the key-bindings and use substitute-command-keys if non-standard
1287 (message
1288 "d-elete, u-ndelete, x-punge, f-ind, o-ther window, R-ename, C-opy, h-elp"))
1290 (defun dired-undo ()
1291 "Undo in a dired buffer.
1292 This doesn't recover lost files, it just undoes changes in the buffer itself.
1293 You can use it to recover marks, killed lines or subdirs.
1294 In the latter case, you have to do \\[dired-build-subdir-alist] to
1295 parse the buffer again."
1296 (interactive)
1297 (let (buffer-read-only)
1298 (undo)
1299 (message "Change in Dired buffer undone.
1300 Actual changes in files cannot be undone by Emacs.")))
1302 (defun dired-next-line (arg)
1303 "Move down lines then position at filename.
1304 Optional prefix ARG says how many lines to move; default is one line."
1305 (interactive "p")
1306 (next-line arg)
1307 (dired-move-to-filename))
1309 (defun dired-previous-line (arg)
1310 "Move up lines then position at filename.
1311 Optional prefix ARG says how many lines to move; default is one line."
1312 (interactive "p")
1313 (previous-line arg)
1314 (dired-move-to-filename))
1316 (defun dired-next-dirline (arg &optional opoint)
1317 "Goto ARG'th next directory file line."
1318 (interactive "p")
1319 (or opoint (setq opoint (point)))
1320 (if (if (> arg 0)
1321 (re-search-forward dired-re-dir nil t arg)
1322 (beginning-of-line)
1323 (re-search-backward dired-re-dir nil t (- arg)))
1324 (dired-move-to-filename) ; user may type `i' or `f'
1325 (goto-char opoint)
1326 (error "No more subdirectories")))
1328 (defun dired-prev-dirline (arg)
1329 "Goto ARG'th previous directory file line."
1330 (interactive "p")
1331 (dired-next-dirline (- arg)))
1333 (defun dired-up-directory (&optional other-window)
1334 "Run Dired on parent directory of current directory.
1335 Find the parent directory either in this buffer or another buffer.
1336 Creates a buffer if necessary."
1337 (interactive "P")
1338 (let* ((dir (dired-current-directory))
1339 (up (file-name-directory (directory-file-name dir))))
1340 (or (dired-goto-file (directory-file-name dir))
1341 ;; Only try dired-goto-subdir if buffer has more than one dir.
1342 (and (cdr dired-subdir-alist)
1343 (dired-goto-subdir up))
1344 (progn
1345 (if other-window
1346 (dired-other-window up)
1347 (dired up))
1348 (dired-goto-file dir)))))
1350 (defun dired-get-file-for-visit ()
1351 "Get the current line's file name, with an error if file does not exist."
1352 (interactive)
1353 (let ((file-name (file-name-sans-versions (dired-get-filename) t)))
1354 (if (file-exists-p file-name)
1355 file-name
1356 (if (file-symlink-p file-name)
1357 (error "File is a symlink to a nonexistent target")
1358 (error "File no longer exists; type `g' to update Dired buffer")))))
1360 ;; Force `f' rather than `e' in the mode doc:
1361 (defalias 'dired-advertised-find-file 'dired-find-file)
1362 (defun dired-find-file ()
1363 "In Dired, visit the file or directory named on this line."
1364 (interactive)
1365 (find-file (dired-get-file-for-visit)))
1367 (defun dired-find-alternate-file ()
1368 "In Dired, visit this file or directory instead of the dired buffer."
1369 (interactive)
1370 (set-buffer-modified-p nil)
1371 (find-alternate-file (dired-get-file-for-visit)))
1372 ;; Don't override the setting from .emacs.
1373 ;;;###autoload (put 'dired-find-alternate-file 'disabled t)
1375 (defun dired-mouse-find-file-other-window (event)
1376 "In Dired, visit the file or directory name you click on."
1377 (interactive "e")
1378 (let (window pos file)
1379 (save-excursion
1380 (setq window (posn-window (event-end event))
1381 pos (posn-point (event-end event)))
1382 (if (not (windowp window))
1383 (error "No file chosen"))
1384 (set-buffer (window-buffer window))
1385 (goto-char pos)
1386 (setq file (dired-get-file-for-visit)))
1387 (select-window window)
1388 (find-file-other-window (file-name-sans-versions file t))))
1390 (defcustom dired-view-command-alist
1391 '(("[.]ps\\'" . "gv -spartan -color -watch")
1392 ("[.]pdf\\'" . "xpdf")
1393 ("[.]dvi\\'" . "xdvi -sidemargin 0.5 -topmargin 1"))
1394 "Alist specifying how to view special types of files.
1395 Each element has the form (REGEXP . SHELL-COMMAND).
1396 When the file name matches REGEXP, `dired-view-file'
1397 invokes SHELL-COMMAND to view the file, putting the file name
1398 at the end of the command."
1399 :group 'dired
1400 :type '(alist :key-type regexp :value-type string)
1401 :version "21.4")
1403 (defun dired-view-file ()
1404 "In Dired, examine a file in view mode, returning to dired when done.
1405 When file is a directory, show it in this buffer if it is inserted.
1406 Some kinds of files are displayed using external viewer programs;
1407 see `dired-view-command-alist'. Otherwise, display it in another buffer."
1408 (interactive)
1409 (let ((file (dired-get-file-for-visit)))
1410 (if (file-directory-p file)
1411 (or (and (cdr dired-subdir-alist)
1412 (dired-goto-subdir file))
1413 (dired file))
1414 (let (cmd)
1415 ;; Look for some other way to view a certain file.
1416 (dolist (elt dired-view-command-alist)
1417 (if (string-match (car elt) file)
1418 (setq cmd (cdr elt))))
1419 (if cmd
1420 (call-process shell-file-name nil 0 nil
1421 "-c"
1422 (concat cmd " "
1423 (shell-quote-argument file)
1424 " &"))
1425 (view-file file))))))
1427 (defun dired-find-file-other-window ()
1428 "In Dired, visit this file or directory in another window."
1429 (interactive)
1430 (find-file-other-window (dired-get-file-for-visit)))
1432 (defun dired-display-file ()
1433 "In Dired, display this file or directory in another window."
1434 (interactive)
1435 (display-buffer (find-file-noselect (dired-get-file-for-visit))))
1437 ;;; Functions for extracting and manipulating file names in Dired buffers.
1439 (defun dired-get-filename (&optional localp no-error-if-not-filep)
1440 "In Dired, return name of file mentioned on this line.
1441 Value returned normally includes the directory name.
1442 Optional arg LOCALP with value `no-dir' means don't include directory
1443 name in result. A value of `verbatim' means to return the name exactly as
1444 it occurs in the buffer, and a value of t means construct name relative to
1445 `default-directory', which still may contain slashes if in a subdirectory.
1446 Optional arg NO-ERROR-IF-NOT-FILEP means return nil if no filename on
1447 this line, otherwise an error occurs."
1448 (let (case-fold-search file p1 p2 already-absolute)
1449 (save-excursion
1450 (if (setq p1 (dired-move-to-filename (not no-error-if-not-filep)))
1451 (setq p2 (dired-move-to-end-of-filename no-error-if-not-filep))))
1452 ;; nil if no file on this line, but no-error-if-not-filep is t:
1453 (if (setq file (and p1 p2 (buffer-substring p1 p2)))
1454 (progn
1455 ;; Get rid of the mouse-face property that file names have.
1456 (set-text-properties 0 (length file) nil file)
1457 ;; Unquote names quoted by ls or by dired-insert-directory.
1458 ;; Using read to unquote is much faster than substituting
1459 ;; \007 (4 chars) -> ^G (1 char) etc. in a lisp loop.
1460 (setq file
1461 (read
1462 (concat "\""
1463 ;; Some ls -b don't escape quotes, argh!
1464 ;; This is not needed for GNU ls, though.
1465 (or (dired-string-replace-match
1466 "\\([^\\]\\|\\`\\)\"" file "\\1\\\\\"" nil t)
1467 file)
1468 "\"")))
1469 ;; The above `read' will return a unibyte string if FILE
1470 ;; contains eight-bit-control/graphic characters.
1471 (if (and enable-multibyte-characters
1472 (not (multibyte-string-p file)))
1473 (setq file (string-to-multibyte file)))))
1474 (and file (file-name-absolute-p file)
1475 ;; A relative file name can start with ~.
1476 ;; Don't treat it as absolute in this context.
1477 (not (eq (aref file 0) ?~))
1478 (setq already-absolute t))
1479 (cond
1480 ((null file)
1481 nil)
1482 ((eq localp 'verbatim)
1483 file)
1484 ((and (eq localp 'no-dir) already-absolute)
1485 (file-name-nondirectory file))
1486 (already-absolute
1487 (let ((handler (find-file-name-handler file nil)))
1488 ;; check for safe-magic property so that we won't
1489 ;; put /: for names that don't really need them.
1490 ;; For instance, .gz files when auto-compression-mode is on.
1491 (if (and handler (not (get handler 'safe-magic)))
1492 (concat "/:" file)
1493 file)))
1494 ((eq localp 'no-dir)
1495 file)
1496 ((equal (dired-current-directory) "/")
1497 (setq file (concat (dired-current-directory localp) file))
1498 (let ((handler (find-file-name-handler file nil)))
1499 ;; check for safe-magic property so that we won't
1500 ;; put /: for names that don't really need them.
1501 ;; For instance, .gz files when auto-compression-mode is on.
1502 (if (and handler (not (get handler 'safe-magic)))
1503 (concat "/:" file)
1504 file)))
1506 (concat (dired-current-directory localp) file)))))
1508 (defun dired-string-replace-match (regexp string newtext
1509 &optional literal global)
1510 "Replace first match of REGEXP in STRING with NEWTEXT.
1511 If it does not match, nil is returned instead of the new string.
1512 Optional arg LITERAL means to take NEWTEXT literally.
1513 Optional arg GLOBAL means to replace all matches."
1514 (if global
1515 (let ((start 0) ret)
1516 (while (string-match regexp string start)
1517 (let ((from-end (- (length string) (match-end 0))))
1518 (setq ret (setq string (replace-match newtext t literal string)))
1519 (setq start (- (length string) from-end))))
1520 ret)
1521 (if (not (string-match regexp string 0))
1523 (replace-match newtext t literal string))))
1525 (defun dired-make-absolute (file &optional dir)
1526 ;;"Convert FILE (a file name relative to DIR) to an absolute file name."
1527 ;; We can't always use expand-file-name as this would get rid of `.'
1528 ;; or expand in / instead default-directory if DIR=="".
1529 ;; This should be good enough for ange-ftp, but might easily be
1530 ;; redefined (for VMS?).
1531 ;; It should be reasonably fast, though, as it is called in
1532 ;; dired-get-filename.
1533 (concat (or dir default-directory) file))
1535 (defun dired-make-relative (file &optional dir ignore)
1536 "Convert FILE (an absolute file name) to a name relative to DIR.
1537 If this is impossible, return FILE unchanged.
1538 DIR must be a directory name, not a file name."
1539 (or dir (setq dir default-directory))
1540 ;; This case comes into play if default-directory is set to
1541 ;; use ~.
1542 (if (and (> (length dir) 0) (= (aref dir 0) ?~))
1543 (setq dir (expand-file-name dir)))
1544 (if (string-match (concat "^" (regexp-quote dir)) file)
1545 (substring file (match-end 0))
1546 ;;; (or no-error
1547 ;;; (error "%s: not in directory tree growing at %s" file dir))
1548 file))
1550 ;;; Functions for finding the file name in a dired buffer line.
1552 (defvar dired-move-to-filename-regexp
1553 (let* ((l "\\([A-Za-z]\\|[^\0-\177]\\)")
1554 ;; In some locales, month abbreviations are as short as 2 letters,
1555 ;; and they can be followed by ".".
1556 (month (concat l l "+\\.?"))
1557 (s " ")
1558 (yyyy "[0-9][0-9][0-9][0-9]")
1559 (dd "[ 0-3][0-9]")
1560 (HH:MM "[ 0-2][0-9]:[0-5][0-9]")
1561 (seconds "[0-6][0-9]\\([.,][0-9]+\\)?")
1562 (zone "[-+][0-2][0-9][0-5][0-9]")
1563 (iso-mm-dd "[01][0-9]-[0-3][0-9]")
1564 (iso-time (concat HH:MM "\\(:" seconds "\\( ?" zone "\\)?\\)?"))
1565 (iso (concat "\\(\\(" yyyy "-\\)?" iso-mm-dd "[ T]" iso-time
1566 "\\|" yyyy "-" iso-mm-dd "\\)"))
1567 (western (concat "\\(" month s "+" dd "\\|" dd "\\.?" s month "\\)"
1568 s "+"
1569 "\\(" HH:MM "\\|" yyyy "\\)"))
1570 (western-comma (concat month s "+" dd "," s "+" yyyy))
1571 ;; Japanese MS-Windows ls-lisp has one-digit months, and
1572 ;; omits the Kanji characters after month and day-of-month.
1573 (mm "[ 0-1]?[0-9]")
1574 (japanese
1575 (concat mm l "?" s dd l "?" s "+"
1576 "\\(" HH:MM "\\|" yyyy l "?" "\\)")))
1577 ;; The "[0-9]" below requires the previous column to end in a digit.
1578 ;; This avoids recognizing `1 may 1997' as a date in the line:
1579 ;; -r--r--r-- 1 may 1997 1168 Oct 19 16:49 README
1580 ;; The "[kKMGTPEZY]?" below supports "ls -alh" output.
1581 ;; The ".*" below finds the last match if there are multiple matches.
1582 ;; This avoids recognizing `jservice 10 1024' as a date in the line:
1583 ;; drwxr-xr-x 3 jservice 10 1024 Jul 2 1997 esg-host
1584 (concat ".*[0-9][kKMGTPEZY]?" s
1585 "\\(" western "\\|" western-comma "\\|" japanese "\\|" iso "\\)"
1586 s "+"))
1587 "Regular expression to match up to the file name in a directory listing.
1588 The default value is designed to recognize dates and times
1589 regardless of the language.")
1591 (defvar dired-permission-flags-regexp
1592 "\\([^ ]\\)[-r][-w]\\([^ ]\\)[-r][-w]\\([^ ]\\)[-r][-w]\\([^ ]\\)"
1593 "Regular expression to match the permission flags in `ls -l'.")
1595 ;; Move to first char of filename on this line.
1596 ;; Returns position (point) or nil if no filename on this line."
1597 (defun dired-move-to-filename (&optional raise-error eol)
1598 ;; This is the UNIX version.
1599 (or eol (setq eol (line-end-position)))
1600 (beginning-of-line)
1601 ;; First try assuming `ls --dired' was used.
1602 (let ((change (next-single-property-change (point) 'dired-filename nil eol)))
1603 (cond
1604 ((and change (< change eol))
1605 (goto-char change))
1606 ((re-search-forward dired-move-to-filename-regexp eol t)
1607 (goto-char (match-end 0)))
1608 ((re-search-forward dired-permission-flags-regexp eol t)
1609 ;; Ha! There *is* a file. Our regexp-from-hell just failed to find it.
1610 (funcall (if raise-error 'error 'message)
1611 "Unrecognized line! Check dired-move-to-filename-regexp"))
1612 (raise-error
1613 (error "No file on this line")))))
1615 (defun dired-move-to-end-of-filename (&optional no-error)
1616 ;; Assumes point is at beginning of filename,
1617 ;; thus the rwx bit re-search-backward below will succeed in *this*
1618 ;; line if at all. So, it should be called only after
1619 ;; (dired-move-to-filename t).
1620 ;; On failure, signals an error (with non-nil NO-ERROR just returns nil).
1621 ;; This is the UNIX version.
1622 (if (get-text-property (point) 'dired-filename)
1623 (goto-char (next-single-property-change (point) 'dired-filename))
1624 (let (opoint file-type executable symlink hidden case-fold-search used-F eol)
1625 ;; case-fold-search is nil now, so we can test for capital F:
1626 (setq used-F (string-match "F" dired-actual-switches)
1627 opoint (point)
1628 eol (save-excursion (end-of-line) (point))
1629 hidden (and selective-display
1630 (save-excursion (search-forward "\r" eol t))))
1631 (if hidden
1633 (save-excursion ;; Find out what kind of file this is:
1634 ;; Restrict perm bits to be non-blank,
1635 ;; otherwise this matches one char to early (looking backward):
1636 ;; "l---------" (some systems make symlinks that way)
1637 ;; "----------" (plain file with zero perms)
1638 (if (re-search-backward
1639 dired-permission-flags-regexp nil t)
1640 (setq file-type (char-after (match-beginning 1))
1641 symlink (eq file-type ?l)
1642 ;; Only with -F we need to know whether it's an executable
1643 executable (and
1644 used-F
1645 (string-match
1646 "[xst]" ;; execute bit set anywhere?
1647 (concat
1648 (buffer-substring (match-beginning 2)
1649 (match-end 2))
1650 (buffer-substring (match-beginning 3)
1651 (match-end 3))
1652 (buffer-substring (match-beginning 4)
1653 (match-end 4))))))
1654 (or no-error (error "No file on this line"))))
1655 ;; Move point to end of name:
1656 (if symlink
1657 (if (search-forward " ->" eol t)
1658 (progn
1659 (forward-char -3)
1660 (and used-F
1661 dired-ls-F-marks-symlinks
1662 (eq (preceding-char) ?@) ;; did ls really mark the link?
1663 (forward-char -1))))
1664 (goto-char eol) ;; else not a symbolic link
1665 ;; ls -lF marks dirs, sockets and executables with exactly one
1666 ;; trailing character. (Executable bits on symlinks ain't mean
1667 ;; a thing, even to ls, but we know it's not a symlink.)
1668 (and used-F
1669 (or (memq file-type '(?d ?s))
1670 executable)
1671 (forward-char -1))))
1672 (or no-error
1673 (not (eq opoint (point)))
1674 (error (if hidden
1675 (substitute-command-keys
1676 "File line is hidden, type \\[dired-hide-subdir] to unhide")
1677 "No file on this line")))
1678 (if (eq opoint (point))
1680 (point)))))
1683 ;;; COPY NAMES OF MARKED FILES INTO KILL-RING.
1685 (defun dired-copy-filename-as-kill (&optional arg)
1686 "Copy names of marked (or next ARG) files into the kill ring.
1687 The names are separated by a space.
1688 With a zero prefix arg, use the absolute file name of each marked file.
1689 With \\[universal-argument], use the file name sans directory of each marked file.
1691 If on a subdir headerline, use subdirname instead; prefix arg is ignored
1692 in this case.
1694 You can then feed the file name(s) to other commands with \\[yank]."
1695 (interactive "P")
1696 (let ((string
1697 (or (dired-get-subdir)
1698 (mapconcat (function identity)
1699 (if arg
1700 (cond ((zerop (prefix-numeric-value arg))
1701 (dired-get-marked-files))
1702 ((integerp arg)
1703 (dired-get-marked-files 'no-dir arg))
1704 (t ; else a raw arg
1705 (dired-get-marked-files t)))
1706 (dired-get-marked-files 'no-dir))
1707 " "))))
1708 (if (eq last-command 'kill-region)
1709 (kill-append string nil)
1710 (kill-new string))
1711 (message "%s" string)))
1714 ;; Keeping Dired buffers in sync with the filesystem and with each other
1716 (defun dired-buffers-for-dir (dir &optional file)
1717 ;; Return a list of buffers that dired DIR (top level or in-situ subdir).
1718 ;; If FILE is non-nil, include only those whose wildcard pattern (if any)
1719 ;; matches FILE.
1720 ;; The list is in reverse order of buffer creation, most recent last.
1721 ;; As a side effect, killed dired buffers for DIR are removed from
1722 ;; dired-buffers.
1723 (setq dir (file-name-as-directory dir))
1724 (let ((alist dired-buffers) result elt buf pattern)
1725 (while alist
1726 (setq elt (car alist)
1727 buf (cdr elt))
1728 (if (buffer-name buf)
1729 (if (dired-in-this-tree dir (car elt))
1730 (with-current-buffer buf
1731 (and (assoc dir dired-subdir-alist)
1732 (or (null file)
1733 (let ((wildcards
1734 (file-name-nondirectory dired-directory)))
1735 (or (= 0 (length wildcards))
1736 (string-match (dired-glob-regexp wildcards)
1737 file))))
1738 (setq result (cons buf result)))))
1739 ;; else buffer is killed - clean up:
1740 (setq dired-buffers (delq elt dired-buffers)))
1741 (setq alist (cdr alist)))
1742 result))
1744 (defun dired-glob-regexp (pattern)
1745 "Convert glob-pattern PATTERN to a regular expression."
1746 (let ((matched-in-pattern 0) ;; How many chars of PATTERN we've handled.
1747 regexp)
1748 (while (string-match "[[?*]" pattern matched-in-pattern)
1749 (let ((op-end (match-end 0))
1750 (next-op (aref pattern (match-beginning 0))))
1751 (setq regexp (concat regexp
1752 (regexp-quote
1753 (substring pattern matched-in-pattern
1754 (match-beginning 0)))))
1755 (cond ((= next-op ??)
1756 (setq regexp (concat regexp "."))
1757 (setq matched-in-pattern op-end))
1758 ((= next-op ?\[)
1759 ;; Fails to handle ^ yet ????
1760 (let* ((set-start (match-beginning 0))
1761 (set-cont
1762 (if (= (aref pattern (1+ set-start)) ?^)
1763 (+ 3 set-start)
1764 (+ 2 set-start)))
1765 (set-end (string-match "]" pattern set-cont))
1766 (set (substring pattern set-start (1+ set-end))))
1767 (setq regexp (concat regexp set))
1768 (setq matched-in-pattern (1+ set-end))))
1769 ((= next-op ?*)
1770 (setq regexp (concat regexp ".*"))
1771 (setq matched-in-pattern op-end)))))
1772 (concat "\\`"
1773 regexp
1774 (regexp-quote
1775 (substring pattern matched-in-pattern))
1776 "\\'")))
1780 (defun dired-advertise ()
1781 ;;"Advertise in variable `dired-buffers' that we dired `default-directory'."
1782 ;; With wildcards we actually advertise too much.
1783 (let ((expanded-default (expand-file-name default-directory)))
1784 (if (memq (current-buffer) (dired-buffers-for-dir expanded-default))
1785 t ; we have already advertised ourselves
1786 (setq dired-buffers
1787 (cons (cons expanded-default (current-buffer))
1788 dired-buffers)))))
1790 (defun dired-unadvertise (dir)
1791 ;; Remove DIR from the buffer alist in variable dired-buffers.
1792 ;; This has the effect of removing any buffer whose main directory is DIR.
1793 ;; It does not affect buffers in which DIR is a subdir.
1794 ;; Removing is also done as a side-effect in dired-buffer-for-dir.
1795 (setq dired-buffers
1796 (delq (assoc (expand-file-name dir) dired-buffers) dired-buffers)))
1798 ;; Tree Dired
1800 ;;; utility functions
1802 (defun dired-in-this-tree (file dir)
1803 ;;"Is FILE part of the directory tree starting at DIR?"
1804 (let (case-fold-search)
1805 (string-match (concat "^" (regexp-quote dir)) file)))
1807 (defun dired-normalize-subdir (dir)
1808 ;; Prepend default-directory to DIR if relative file name.
1809 ;; dired-get-filename must be able to make a valid file name from a
1810 ;; file and its directory DIR.
1811 (file-name-as-directory
1812 (if (file-name-absolute-p dir)
1814 (expand-file-name dir default-directory))))
1816 (defun dired-get-subdir ()
1817 ;;"Return the subdir name on this line, or nil if not on a headerline."
1818 ;; Look up in the alist whether this is a headerline.
1819 (save-excursion
1820 (let ((cur-dir (dired-current-directory)))
1821 (beginning-of-line) ; alist stores b-o-l positions
1822 (and (zerop (- (point)
1823 (dired-get-subdir-min (assoc cur-dir
1824 dired-subdir-alist))))
1825 cur-dir))))
1827 ;(defun dired-get-subdir-min (elt)
1828 ; (cdr elt))
1829 ;; can't use macro, must be redefinable for other alist format in dired-nstd.
1830 (defalias 'dired-get-subdir-min 'cdr)
1832 (defun dired-get-subdir-max (elt)
1833 (save-excursion
1834 (goto-char (dired-get-subdir-min elt))
1835 (dired-subdir-max)))
1837 (defun dired-clear-alist ()
1838 (while dired-subdir-alist
1839 (set-marker (dired-get-subdir-min (car dired-subdir-alist)) nil)
1840 (setq dired-subdir-alist (cdr dired-subdir-alist))))
1842 (defun dired-subdir-index (dir)
1843 ;; Return an index into alist for use with nth
1844 ;; for the sake of subdir moving commands.
1845 (let (found (index 0) (alist dired-subdir-alist))
1846 (while alist
1847 (if (string= dir (car (car alist)))
1848 (setq alist nil found t)
1849 (setq alist (cdr alist) index (1+ index))))
1850 (if found index nil)))
1852 (defun dired-next-subdir (arg &optional no-error-if-not-found no-skip)
1853 "Go to next subdirectory, regardless of level."
1854 ;; Use 0 arg to go to this directory's header line.
1855 ;; NO-SKIP prevents moving to end of header line, returning whatever
1856 ;; position was found in dired-subdir-alist.
1857 (interactive "p")
1858 (let ((this-dir (dired-current-directory))
1859 pos index)
1860 ;; nth with negative arg does not return nil but the first element
1861 (setq index (- (dired-subdir-index this-dir) arg))
1862 (setq pos (if (>= index 0)
1863 (dired-get-subdir-min (nth index dired-subdir-alist))))
1864 (if pos
1865 (progn
1866 (goto-char pos)
1867 (or no-skip (skip-chars-forward "^\n\r"))
1868 (point))
1869 (if no-error-if-not-found
1870 nil ; return nil if not found
1871 (error "%s directory" (if (> arg 0) "Last" "First"))))))
1873 (defun dired-build-subdir-alist (&optional switches)
1874 "Build `dired-subdir-alist' by parsing the buffer.
1875 Returns the new value of the alist.
1876 If optional arg SWITCHES is non-nil, use its value
1877 instead of `dired-actual-switches'."
1878 (interactive)
1879 (dired-clear-alist)
1880 (save-excursion
1881 (let* ((count 0)
1882 (buffer-read-only nil)
1883 (switches (or switches dired-actual-switches))
1884 new-dir-name
1885 (R-ftp-base-dir-regex
1886 ;; Used to expand subdirectory names correctly in recursive
1887 ;; ange-ftp listings.
1888 (and (string-match "R" switches)
1889 (string-match "\\`/.*:\\(/.*\\)" default-directory)
1890 (concat "\\`" (match-string 1 default-directory)))))
1891 (goto-char (point-min))
1892 (setq dired-subdir-alist nil)
1893 (while (and (re-search-forward dired-subdir-regexp nil t)
1894 ;; Avoid taking a file name ending in a colon
1895 ;; as a subdir name.
1896 (not (save-excursion
1897 (goto-char (match-beginning 0))
1898 (beginning-of-line)
1899 (forward-char 2)
1900 (save-match-data (looking-at dired-re-perms)))))
1901 (save-excursion
1902 (goto-char (match-beginning 1))
1903 (setq new-dir-name
1904 (buffer-substring-no-properties (point) (match-end 1))
1905 new-dir-name
1906 (save-match-data
1907 (if (and R-ftp-base-dir-regex
1908 (not (string= new-dir-name default-directory))
1909 (string-match R-ftp-base-dir-regex new-dir-name))
1910 (concat default-directory
1911 (substring new-dir-name (match-end 0)))
1912 (expand-file-name new-dir-name))))
1913 (delete-region (point) (match-end 1))
1914 (insert new-dir-name))
1915 (setq count (1+ count))
1916 (dired-alist-add-1 new-dir-name
1917 ;; Place a sub directory boundary between lines.
1918 (save-excursion
1919 (goto-char (match-beginning 0))
1920 (beginning-of-line)
1921 (point-marker))))
1922 (if (> count 1)
1923 (message "Buffer includes %d directories" count))
1924 ;; We don't need to sort it because it is in buffer order per
1925 ;; constructionem. Return new alist:
1926 dired-subdir-alist)))
1928 (defun dired-alist-add-1 (dir new-marker)
1929 ;; Add new DIR at NEW-MARKER. Don't sort.
1930 (setq dired-subdir-alist
1931 (cons (cons (dired-normalize-subdir dir) new-marker)
1932 dired-subdir-alist)))
1934 (defun dired-goto-next-nontrivial-file ()
1935 ;; Position point on first nontrivial file after point.
1936 (dired-goto-next-file);; so there is a file to compare with
1937 (if (stringp dired-trivial-filenames)
1938 (while (and (not (eobp))
1939 (string-match dired-trivial-filenames
1940 (file-name-nondirectory
1941 (or (dired-get-filename nil t) ""))))
1942 (forward-line 1)
1943 (dired-move-to-filename))))
1945 (defun dired-goto-next-file ()
1946 (let ((max (1- (dired-subdir-max))))
1947 (while (and (not (dired-move-to-filename)) (< (point) max))
1948 (forward-line 1))))
1950 (defun dired-goto-file (file)
1951 "Go to file line of FILE in this dired buffer."
1952 ;; Return value of point on success, else nil.
1953 ;; FILE must be an absolute file name.
1954 ;; Loses if FILE contains control chars like "\007" for which ls
1955 ;; either inserts "?" or "\\007" into the buffer, so we won't find
1956 ;; it in the buffer.
1957 (interactive
1958 (prog1 ; let push-mark display its message
1959 (list (expand-file-name
1960 (read-file-name "Goto file: "
1961 (dired-current-directory))))
1962 (push-mark)))
1963 (setq file (directory-file-name file)) ; does no harm if no directory
1964 (let (found case-fold-search dir)
1965 (setq dir (or (file-name-directory file)
1966 (error "File name `%s' is not absolute" file)))
1967 (save-excursion
1968 ;; The hair here is to get the result of dired-goto-subdir
1969 ;; without really calling it if we don't have any subdirs.
1970 (if (if (string= dir (expand-file-name default-directory))
1971 (goto-char (point-min))
1972 (and (cdr dired-subdir-alist)
1973 (dired-goto-subdir dir)))
1974 (let ((base (file-name-nondirectory file))
1975 search-string
1976 (boundary (dired-subdir-max)))
1977 (setq search-string
1978 (replace-regexp-in-string "\^m" "\\^m" base nil t))
1979 (setq search-string
1980 (replace-regexp-in-string "\\\\" "\\\\" search-string nil t))
1981 (while (and (not found)
1982 ;; filenames are preceded by SPC, this makes
1983 ;; the search faster (e.g. for the filename "-"!).
1984 (search-forward (concat " " search-string)
1985 boundary 'move))
1986 ;; Match could have BASE just as initial substring or
1987 ;; or in permission bits or date or
1988 ;; not be a proper filename at all:
1989 (if (equal base (dired-get-filename 'no-dir t))
1990 ;; Must move to filename since an (actually
1991 ;; correct) match could have been elsewhere on the
1992 ;; ;; line (e.g. "-" would match somewhere in the
1993 ;; permission bits).
1994 (setq found (dired-move-to-filename))
1995 ;; If this isn't the right line, move forward to avoid
1996 ;; trying this line again.
1997 (forward-line 1))))))
1998 (and found
1999 ;; return value of point (i.e., FOUND):
2000 (goto-char found))))
2002 (defun dired-initial-position (dirname)
2003 ;; Where point should go in a new listing of DIRNAME.
2004 ;; Point assumed at beginning of new subdir line.
2005 ;; You may redefine this function as you wish, e.g. like in dired-x.el.
2006 (end-of-line)
2007 (if dired-trivial-filenames (dired-goto-next-nontrivial-file)))
2009 ;; These are hooks which make tree dired work.
2010 ;; They are in this file because other parts of dired need to call them.
2011 ;; But they don't call the rest of tree dired unless there are subdirs loaded.
2013 ;; This function is called for each retrieved filename.
2014 ;; It could stand to be faster, though it's mostly function call
2015 ;; overhead. Avoiding the function call seems to save about 10% in
2016 ;; dired-get-filename. Make it a defsubst?
2017 (defun dired-current-directory (&optional localp)
2018 "Return the name of the subdirectory to which this line belongs.
2019 This returns a string with trailing slash, like `default-directory'.
2020 Optional argument means return a file name relative to `default-directory'."
2021 (let ((here (point))
2022 (alist (or dired-subdir-alist
2023 ;; probably because called in a non-dired buffer
2024 (error "No subdir-alist in %s" (current-buffer))))
2025 elt dir)
2026 (while alist
2027 (setq elt (car alist)
2028 dir (car elt)
2029 ;; use `<=' (not `<') as subdir line is part of subdir
2030 alist (if (<= (dired-get-subdir-min elt) here)
2031 nil ; found
2032 (cdr alist))))
2033 (if localp
2034 (dired-make-relative dir default-directory)
2035 dir)))
2037 ;; Subdirs start at the beginning of their header lines and end just
2038 ;; before the beginning of the next header line (or end of buffer).
2040 (defun dired-subdir-max ()
2041 (save-excursion
2042 (if (or (null (cdr dired-subdir-alist)) (not (dired-next-subdir 1 t t)))
2043 (point-max)
2044 (point))))
2046 ;; Deleting files
2048 (defcustom dired-recursive-deletes nil ; Default only delete empty directories.
2049 "*Decide whether recursive deletes are allowed.
2050 nil means no recursive deletes.
2051 `always' means delete recursively without asking. This is DANGEROUS!
2052 `top' means ask for each directory at top level, but delete its subdirectories
2053 without asking.
2054 Anything else means ask for each directory."
2055 :type '(choice :tag "Delete non-empty directories"
2056 (const :tag "Yes" always)
2057 (const :tag "No--only delete empty directories" nil)
2058 (const :tag "Confirm for each directory" t)
2059 (const :tag "Confirm for each top directory only" top))
2060 :group 'dired)
2062 ;; Match anything but `.' and `..'.
2063 (defvar dired-re-no-dot "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*")
2065 ;; Delete file, possibly delete a directory and all its files.
2066 ;; This function is usefull outside of dired. One could change it's name
2067 ;; to e.g. recursive-delete-file and put it somewhere else.
2068 (defun dired-delete-file (file &optional recursive) "\
2069 Delete FILE or directory (possibly recursively if optional RECURSIVE is true.)
2070 RECURSIVE determines what to do with a non-empty directory. If RECURSIVE is:
2071 Nil, do not delete.
2072 `always', delete recursively without asking.
2073 `top', ask for each directory at top level.
2074 Anything else, ask for each sub-directory."
2075 (let (files)
2076 ;; This test is equivalent to
2077 ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
2078 ;; but more efficient
2079 (if (not (eq t (car (file-attributes file))))
2080 (delete-file file)
2081 (when (and recursive
2082 (setq files
2083 (directory-files file t dired-re-no-dot)) ; Not empty.
2084 (or (eq recursive 'always)
2085 (yes-or-no-p (format "Recursive delete of %s "
2086 (dired-make-relative file)))))
2087 (if (eq recursive 'top) (setq recursive 'always)) ; Don't ask again.
2088 (while files ; Recursively delete (possibly asking).
2089 (dired-delete-file (car files) recursive)
2090 (setq files (cdr files))))
2091 (delete-directory file))))
2093 (defun dired-do-flagged-delete (&optional nomessage)
2094 "In Dired, delete the files flagged for deletion.
2095 If NOMESSAGE is non-nil, we don't display any message
2096 if there are no flagged files."
2097 (interactive)
2098 (let* ((dired-marker-char dired-del-marker)
2099 (regexp (dired-marker-regexp))
2100 case-fold-search)
2101 (if (save-excursion (goto-char (point-min))
2102 (re-search-forward regexp nil t))
2103 (dired-internal-do-deletions
2104 ;; this can't move point since ARG is nil
2105 (dired-map-over-marks (cons (dired-get-filename) (point))
2106 nil)
2107 nil)
2108 (or nomessage
2109 (message "(No deletions requested)")))))
2111 (defun dired-do-delete (&optional arg)
2112 "Delete all marked (or next ARG) files."
2113 ;; This is more consistent with the file marking feature than
2114 ;; dired-do-flagged-delete.
2115 (interactive "P")
2116 (dired-internal-do-deletions
2117 ;; this may move point if ARG is an integer
2118 (dired-map-over-marks (cons (dired-get-filename) (point))
2119 arg)
2120 arg))
2122 (defvar dired-deletion-confirmer 'yes-or-no-p) ; or y-or-n-p?
2124 (defun dired-internal-do-deletions (l arg)
2125 ;; L is an alist of files to delete, with their buffer positions.
2126 ;; ARG is the prefix arg.
2127 ;; Filenames are absolute (VMS needs this for logical search paths).
2128 ;; (car L) *must* be the *last* (bottommost) file in the dired buffer.
2129 ;; That way as changes are made in the buffer they do not shift the
2130 ;; lines still to be changed, so the (point) values in L stay valid.
2131 ;; Also, for subdirs in natural order, a subdir's files are deleted
2132 ;; before the subdir itself - the other way around would not work.
2133 (let ((files (mapcar (function car) l))
2134 (count (length l))
2135 (succ 0))
2136 ;; canonicalize file list for pop up
2137 (setq files (nreverse (mapcar (function dired-make-relative) files)))
2138 (if (dired-mark-pop-up
2139 " *Deletions*" 'delete files dired-deletion-confirmer
2140 (format "Delete %s " (dired-mark-prompt arg files)))
2141 (save-excursion
2142 (let (failures);; files better be in reverse order for this loop!
2143 (while l
2144 (goto-char (cdr (car l)))
2145 (let (buffer-read-only)
2146 (condition-case err
2147 (let ((fn (car (car l))))
2148 (dired-delete-file fn dired-recursive-deletes)
2149 ;; if we get here, removing worked
2150 (setq succ (1+ succ))
2151 (message "%s of %s deletions" succ count)
2152 (dired-fun-in-all-buffers
2153 (file-name-directory fn) (file-name-nondirectory fn)
2154 (function dired-delete-entry) fn))
2155 (error;; catch errors from failed deletions
2156 (dired-log "%s\n" err)
2157 (setq failures (cons (car (car l)) failures)))))
2158 (setq l (cdr l)))
2159 (if (not failures)
2160 (message "%d deletion%s done" count (dired-plural-s count))
2161 (dired-log-summary
2162 (format "%d of %d deletion%s failed"
2163 (length failures) count
2164 (dired-plural-s count))
2165 failures))))
2166 (message "(No deletions performed)")))
2167 (dired-move-to-filename))
2169 (defun dired-fun-in-all-buffers (directory file fun &rest args)
2170 ;; In all buffers dired'ing DIRECTORY, run FUN with ARGS.
2171 ;; If the buffer has a wildcard pattern, check that it matches FILE.
2172 ;; (FILE does not include a directory component.)
2173 ;; FILE may be nil, in which case ignore it.
2174 ;; Return list of buffers where FUN succeeded (i.e., returned non-nil).
2175 (let (success-list)
2176 (dolist (buf (dired-buffers-for-dir (expand-file-name directory)
2177 file))
2178 (with-current-buffer buf
2179 (if (apply fun args)
2180 (setq success-list (cons (buffer-name buf) success-list)))))
2181 success-list))
2183 ;; Delete the entry for FILE from
2184 (defun dired-delete-entry (file)
2185 (save-excursion
2186 (and (dired-goto-file file)
2187 (let (buffer-read-only)
2188 (delete-region (progn (beginning-of-line) (point))
2189 (save-excursion (forward-line 1) (point))))))
2190 (dired-clean-up-after-deletion file))
2192 ;; This is a separate function for the sake of dired-x.el.
2193 (defun dired-clean-up-after-deletion (fn)
2194 ;; Clean up after a deleted file or directory FN.
2195 (save-excursion (and (cdr dired-subdir-alist)
2196 (dired-goto-subdir fn)
2197 (dired-kill-subdir))))
2199 ;; Confirmation
2201 (defun dired-marker-regexp ()
2202 (concat "^" (regexp-quote (char-to-string dired-marker-char))))
2204 (defun dired-plural-s (count)
2205 (if (= 1 count) "" "s"))
2207 (defun dired-mark-prompt (arg files)
2208 ;; Return a string for use in a prompt, either the current file
2209 ;; name, or the marker and a count of marked files.
2210 (let ((count (length files)))
2211 (if (= count 1)
2212 (car files)
2213 ;; more than 1 file:
2214 (if (integerp arg)
2215 ;; abs(arg) = count
2216 ;; Perhaps this is nicer, but it also takes more screen space:
2217 ;;(format "[%s %d files]" (if (> arg 0) "next" "previous")
2218 ;; count)
2219 (format "[next %d files]" arg)
2220 (format "%c [%d files]" dired-marker-char count)))))
2222 (defun dired-pop-to-buffer (buf)
2223 ;; Pop up buffer BUF.
2224 ;; If dired-shrink-to-fit is t, make its window fit its contents.
2225 (if (not dired-shrink-to-fit)
2226 (pop-to-buffer (get-buffer-create buf))
2227 ;; let window shrink to fit:
2228 (let ((window (selected-window))
2229 target-lines w2)
2230 (cond ;; if split-height-threshold is enabled, use the largest window
2231 ((and (> (window-height (setq w2 (get-largest-window)))
2232 split-height-threshold)
2233 (= (frame-width) (window-width w2)))
2234 (setq window w2))
2235 ;; if the least-recently-used window is big enough, use it
2236 ((and (> (window-height (setq w2 (get-lru-window)))
2237 (* 2 window-min-height))
2238 (= (frame-width) (window-width w2)))
2239 (setq window w2)))
2240 (save-excursion
2241 (set-buffer buf)
2242 (goto-char (point-max))
2243 (skip-chars-backward "\n\r\t ")
2244 (setq target-lines (count-lines (point-min) (point)))
2245 ;; Don't forget to count the last line.
2246 (if (not (bolp))
2247 (setq target-lines (1+ target-lines))))
2248 (if (<= (window-height window) (* 2 window-min-height))
2249 ;; At this point, every window on the frame is too small to split.
2250 (setq w2 (display-buffer buf))
2251 (setq w2 (split-window window
2252 (max window-min-height
2253 (- (window-height window)
2254 (1+ (max window-min-height target-lines)))))))
2255 (set-window-buffer w2 buf)
2256 (if (< (1- (window-height w2)) target-lines)
2257 (progn
2258 (select-window w2)
2259 (enlarge-window (- target-lines (1- (window-height w2))))))
2260 (set-window-start w2 1)
2263 (defvar dired-no-confirm nil
2264 "A list of symbols for commands dired should not confirm.
2265 Command symbols are `byte-compile', `chgrp', `chmod', `chown', `compress',
2266 `copy', `delete', `hardlink', `load', `move', `print', `shell', `symlink' and
2267 `uncompress'.")
2269 (defun dired-mark-pop-up (bufname op-symbol files function &rest args)
2270 "Return FUNCTION's result on ARGS after showing which files are marked.
2271 Displays the file names in a buffer named BUFNAME;
2272 nil gives \" *Marked Files*\".
2273 This uses function `dired-pop-to-buffer' to do that.
2275 FUNCTION should not manipulate files, just read input
2276 (an argument or confirmation).
2277 The window is not shown if there is just one file or
2278 OP-SYMBOL is a member of the list in `dired-no-confirm'.
2279 FILES is the list of marked files."
2280 (or bufname (setq bufname " *Marked Files*"))
2281 (if (or (eq dired-no-confirm t)
2282 (memq op-symbol dired-no-confirm)
2283 (= (length files) 1))
2284 (apply function args)
2285 (with-current-buffer (get-buffer-create bufname)
2286 (erase-buffer)
2287 (dired-format-columns-of-files files)
2288 (remove-text-properties (point-min) (point-max)
2289 '(mouse-face nil help-echo nil)))
2290 (save-window-excursion
2291 (dired-pop-to-buffer bufname)
2292 (apply function args))))
2294 (defun dired-format-columns-of-files (files)
2295 ;; Files should be in forward order for this loop.
2296 ;; i.e., (car files) = first file in buffer.
2297 ;; Returns the number of lines used.
2298 (let* ((maxlen (+ 2 (apply 'max (mapcar 'length files))))
2299 (width (- (window-width (selected-window)) 2))
2300 (columns (max 1 (/ width maxlen)))
2301 (nfiles (length files))
2302 (rows (+ (/ nfiles columns)
2303 (if (zerop (% nfiles columns)) 0 1)))
2304 (i 0)
2305 (j 0))
2306 (setq files (nconc (copy-sequence files) ; fill up with empty fns
2307 (make-list (- (* columns rows) nfiles) "")))
2308 (setcdr (nthcdr (1- (length files)) files) files) ; make circular
2309 (while (< j rows)
2310 (while (< i columns)
2311 (indent-to (* i maxlen))
2312 (insert (car files))
2313 (setq files (nthcdr rows files)
2314 i (1+ i)))
2315 (insert "\n")
2316 (setq i 0
2317 j (1+ j)
2318 files (cdr files)))
2319 rows))
2321 ;; Commands to mark or flag file(s) at or near current line.
2323 (defun dired-repeat-over-lines (arg function)
2324 ;; This version skips non-file lines.
2325 (let ((pos (make-marker)))
2326 (beginning-of-line)
2327 (while (and (> arg 0) (not (eobp)))
2328 (setq arg (1- arg))
2329 (beginning-of-line)
2330 (while (and (not (eobp)) (dired-between-files)) (forward-line 1))
2331 (save-excursion
2332 (forward-line 1)
2333 (move-marker pos (1+ (point))))
2334 (save-excursion (funcall function))
2335 ;; Advance to the next line--actually, to the line that *was* next.
2336 ;; (If FUNCTION inserted some new lines in between, skip them.)
2337 (goto-char pos))
2338 (while (and (< arg 0) (not (bobp)))
2339 (setq arg (1+ arg))
2340 (forward-line -1)
2341 (while (and (not (bobp)) (dired-between-files)) (forward-line -1))
2342 (beginning-of-line)
2343 (save-excursion (funcall function)))
2344 (move-marker pos nil)
2345 (dired-move-to-filename)))
2347 (defun dired-between-files ()
2348 ;; Point must be at beginning of line
2349 ;; Should be equivalent to (save-excursion (not (dired-move-to-filename)))
2350 ;; but is about 1.5..2.0 times as fast. (Actually that's not worth it)
2351 (or (looking-at "^$\\|^. *$\\|^. total\\|^. wildcard\\|^. used\\|^. find")
2352 (and (looking-at dired-subdir-regexp)
2353 (save-excursion (not (dired-move-to-filename))))))
2355 (defun dired-next-marked-file (arg &optional wrap opoint)
2356 "Move to the next marked file, wrapping around the end of the buffer."
2357 (interactive "p\np")
2358 (or opoint (setq opoint (point)));; return to where interactively started
2359 (if (if (> arg 0)
2360 (re-search-forward dired-re-mark nil t arg)
2361 (beginning-of-line)
2362 (re-search-backward dired-re-mark nil t (- arg)))
2363 (dired-move-to-filename)
2364 (if (null wrap)
2365 (progn
2366 (goto-char opoint)
2367 (error "No next marked file"))
2368 (message "(Wraparound for next marked file)")
2369 (goto-char (if (> arg 0) (point-min) (point-max)))
2370 (dired-next-marked-file arg nil opoint))))
2372 (defun dired-prev-marked-file (arg &optional wrap)
2373 "Move to the previous marked file, wrapping around the end of the buffer."
2374 (interactive "p\np")
2375 (dired-next-marked-file (- arg) wrap))
2377 (defun dired-file-marker (file)
2378 ;; Return FILE's marker, or nil if unmarked.
2379 (save-excursion
2380 (and (dired-goto-file file)
2381 (progn
2382 (beginning-of-line)
2383 (if (not (equal ?\040 (following-char)))
2384 (following-char))))))
2386 (defun dired-mark-files-in-region (start end)
2387 (let (buffer-read-only)
2388 (if (> start end)
2389 (error "start > end"))
2390 (goto-char start) ; assumed at beginning of line
2391 (while (< (point) end)
2392 ;; Skip subdir line and following garbage like the `total' line:
2393 (while (and (< (point) end) (dired-between-files))
2394 (forward-line 1))
2395 (if (and (not (looking-at dired-re-dot))
2396 (dired-get-filename nil t))
2397 (progn
2398 (delete-char 1)
2399 (insert dired-marker-char)))
2400 (forward-line 1))))
2402 (defun dired-mark (arg)
2403 "Mark the current (or next ARG) files.
2404 If on a subdir headerline, mark all its files except `.' and `..'.
2406 Use \\[dired-unmark-all-files] to remove all marks
2407 and \\[dired-unmark] on a subdir to remove the marks in
2408 this subdir."
2409 (interactive "P")
2410 (if (dired-get-subdir)
2411 (save-excursion (dired-mark-subdir-files))
2412 (let (buffer-read-only)
2413 (dired-repeat-over-lines
2414 (prefix-numeric-value arg)
2415 (function (lambda () (delete-char 1) (insert dired-marker-char)))))))
2417 (defun dired-unmark (arg)
2418 "Unmark the current (or next ARG) files.
2419 If looking at a subdir, unmark all its files except `.' and `..'."
2420 (interactive "P")
2421 (let ((dired-marker-char ?\040))
2422 (dired-mark arg)))
2424 (defun dired-flag-file-deletion (arg)
2425 "In Dired, flag the current line's file for deletion.
2426 With prefix arg, repeat over several lines.
2428 If on a subdir headerline, mark all its files except `.' and `..'."
2429 (interactive "P")
2430 (let ((dired-marker-char dired-del-marker))
2431 (dired-mark arg)))
2433 (defun dired-unmark-backward (arg)
2434 "In Dired, move up lines and remove deletion flag there.
2435 Optional prefix ARG says how many lines to unflag; default is one line."
2436 (interactive "p")
2437 (dired-unmark (- arg)))
2439 (defun dired-toggle-marks ()
2440 "Toggle marks: marked files become unmarked, and vice versa.
2441 Files marked with other flags (such as `D') are not affected.
2442 `.' and `..' are never toggled.
2443 As always, hidden subdirs are not affected."
2444 (interactive)
2445 (save-excursion
2446 (goto-char (point-min))
2447 (let (buffer-read-only)
2448 (while (not (eobp))
2449 (or (dired-between-files)
2450 (looking-at dired-re-dot)
2451 ;; use subst instead of insdel because it does not move
2452 ;; the gap and thus should be faster and because
2453 ;; other characters are left alone automatically
2454 (apply 'subst-char-in-region
2455 (point) (1+ (point))
2456 (if (eq ?\040 (following-char)) ; SPC
2457 (list ?\040 dired-marker-char)
2458 (list dired-marker-char ?\040))))
2459 (forward-line 1)))))
2461 ;;; Commands to mark or flag files based on their characteristics or names.
2463 (defvar dired-regexp-history nil
2464 "History list of regular expressions used in Dired commands.")
2466 (defun dired-read-regexp (prompt)
2467 (read-from-minibuffer prompt nil nil nil 'dired-regexp-history))
2469 (defun dired-mark-files-regexp (regexp &optional marker-char)
2470 "Mark all files matching REGEXP for use in later commands.
2471 A prefix argument means to unmark them instead.
2472 `.' and `..' are never marked.
2474 REGEXP is an Emacs regexp, not a shell wildcard. Thus, use `\\.o$' for
2475 object files--just `.o' will mark more than you might think."
2476 (interactive
2477 (list (dired-read-regexp (concat (if current-prefix-arg "Unmark" "Mark")
2478 " files (regexp): "))
2479 (if current-prefix-arg ?\040)))
2480 (let ((dired-marker-char (or marker-char dired-marker-char)))
2481 (dired-mark-if
2482 (and (not (looking-at dired-re-dot))
2483 (not (eolp)) ; empty line
2484 (let ((fn (dired-get-filename nil t)))
2485 (and fn (string-match regexp (file-name-nondirectory fn)))))
2486 "matching file")))
2488 (defun dired-mark-files-containing-regexp (regexp &optional marker-char)
2489 "Mark all files with contents containing REGEXP for use in later commands.
2490 A prefix argument means to unmark them instead.
2491 `.' and `..' are never marked."
2492 (interactive
2493 (list (dired-read-regexp (concat (if current-prefix-arg "Unmark" "Mark")
2494 " files containing (regexp): "))
2495 (if current-prefix-arg ?\040)))
2496 (let ((dired-marker-char (or marker-char dired-marker-char)))
2497 (dired-mark-if
2498 (and (not (looking-at dired-re-dot))
2499 (not (eolp)) ; empty line
2500 (let ((fn (dired-get-filename nil t)))
2501 (when (and fn (file-readable-p fn)
2502 (not (file-directory-p fn)))
2503 (let ((prebuf (get-file-buffer fn)))
2504 (message "Checking %s" fn)
2505 ;; For now we do it inside emacs
2506 ;; Grep might be better if there are a lot of files
2507 (if prebuf
2508 (with-current-buffer prebuf
2509 (save-excursion
2510 (goto-char (point-min))
2511 (re-search-forward regexp nil t)))
2512 (with-temp-buffer
2513 (insert-file-contents fn)
2514 (goto-char (point-min))
2515 (re-search-forward regexp nil t))))
2517 "matching file")))
2519 (defun dired-flag-files-regexp (regexp)
2520 "In Dired, flag all files containing the specified REGEXP for deletion.
2521 The match is against the non-directory part of the filename. Use `^'
2522 and `$' to anchor matches. Exclude subdirs by hiding them.
2523 `.' and `..' are never flagged."
2524 (interactive (list (dired-read-regexp "Flag for deletion (regexp): ")))
2525 (dired-mark-files-regexp regexp dired-del-marker))
2527 (defun dired-mark-symlinks (unflag-p)
2528 "Mark all symbolic links.
2529 With prefix argument, unflag all those files."
2530 (interactive "P")
2531 (let ((dired-marker-char (if unflag-p ?\040 dired-marker-char)))
2532 (dired-mark-if (looking-at dired-re-sym) "symbolic link")))
2534 (defun dired-mark-directories (unflag-p)
2535 "Mark all directory file lines except `.' and `..'.
2536 With prefix argument, unflag all those files."
2537 (interactive "P")
2538 (let ((dired-marker-char (if unflag-p ?\040 dired-marker-char)))
2539 (dired-mark-if (and (looking-at dired-re-dir)
2540 (not (looking-at dired-re-dot)))
2541 "directory file")))
2543 (defun dired-mark-executables (unflag-p)
2544 "Mark all executable files.
2545 With prefix argument, unflag all those files."
2546 (interactive "P")
2547 (let ((dired-marker-char (if unflag-p ?\040 dired-marker-char)))
2548 (dired-mark-if (looking-at dired-re-exe) "executable file")))
2550 ;; dired-x.el has a dired-mark-sexp interactive command: mark
2551 ;; files for which PREDICATE returns non-nil.
2553 (defun dired-flag-auto-save-files (&optional unflag-p)
2554 "Flag for deletion files whose names suggest they are auto save files.
2555 A prefix argument says to unflag those files instead."
2556 (interactive "P")
2557 (let ((dired-marker-char (if unflag-p ?\040 dired-del-marker)))
2558 (dired-mark-if
2559 ;; It is less than general to check for # here,
2560 ;; but it's the only way this runs fast enough.
2561 (and (save-excursion (end-of-line)
2563 (eq (preceding-char) ?#)
2564 ;; Handle executables in case of -F option.
2565 ;; We need not worry about the other kinds
2566 ;; of markings that -F makes, since they won't
2567 ;; appear on real auto-save files.
2568 (if (eq (preceding-char) ?*)
2569 (progn
2570 (forward-char -1)
2571 (eq (preceding-char) ?#)))))
2572 (not (looking-at dired-re-dir))
2573 (let ((fn (dired-get-filename t t)))
2574 (if fn (auto-save-file-name-p
2575 (file-name-nondirectory fn)))))
2576 "auto save file")))
2578 (defvar dired-garbage-files-regexp
2579 (concat (regexp-opt
2580 '(".log" ".toc" ".dvi" ".bak" ".orig" ".rej" ".aux"))
2581 "\\'")
2582 "*Regular expression to match \"garbage\" files for `dired-flag-garbage-files'.")
2584 (defun dired-flag-garbage-files ()
2585 "Flag for deletion all files that match `dired-garbage-files-regexp'."
2586 (interactive)
2587 (dired-flag-files-regexp dired-garbage-files-regexp))
2589 (defun dired-flag-backup-files (&optional unflag-p)
2590 "Flag all backup files (names ending with `~') for deletion.
2591 With prefix argument, unflag these files."
2592 (interactive "P")
2593 (let ((dired-marker-char (if unflag-p ?\ dired-del-marker)))
2594 (dired-mark-if
2595 ;; Don't call backup-file-name-p unless the last character looks like
2596 ;; it might be the end of a backup file name. This isn't very general,
2597 ;; but it's the only way this runs fast enough.
2598 (and (save-excursion (end-of-line)
2599 ;; Handle executables in case of -F option.
2600 ;; We need not worry about the other kinds
2601 ;; of markings that -F makes, since they won't
2602 ;; appear on real backup files.
2603 (if (eq (preceding-char) ?*)
2604 (forward-char -1))
2605 (eq (preceding-char) ?~))
2606 (not (looking-at dired-re-dir))
2607 (let ((fn (dired-get-filename t t)))
2608 (if fn (backup-file-name-p fn))))
2609 "backup file")))
2611 (defun dired-change-marks (&optional old new)
2612 "Change all OLD marks to NEW marks.
2613 OLD and NEW are both characters used to mark files."
2614 (interactive
2615 (let* ((cursor-in-echo-area t)
2616 (old (progn (message "Change (old mark): ") (read-char)))
2617 (new (progn (message "Change %c marks to (new mark): " old)
2618 (read-char))))
2619 (list old new)))
2620 (if (or (eq old ?\r) (eq new ?\r))
2621 (ding)
2622 (let ((string (format "\n%c" old))
2623 (buffer-read-only))
2624 (save-excursion
2625 (goto-char (point-min))
2626 (while (search-forward string nil t)
2627 (if (if (= old ?\ )
2628 (save-match-data
2629 (dired-get-filename 'no-dir t))
2631 (subst-char-in-region (match-beginning 0)
2632 (match-end 0) old new)))))))
2634 (defun dired-unmark-all-marks ()
2635 "Remove all marks from all files in the Dired buffer."
2636 (interactive)
2637 (dired-unmark-all-files ?\r))
2639 (defun dired-unmark-all-files (mark &optional arg)
2640 "Remove a specific mark (or any mark) from every file.
2641 After this command, type the mark character to remove,
2642 or type RET to remove all marks.
2643 With prefix arg, query for each marked file.
2644 Type \\[help-command] at that time for help."
2645 (interactive "cRemove marks (RET means all): \nP")
2646 (save-excursion
2647 (let* ((count 0)
2648 buffer-read-only case-fold-search query
2649 (string (format "\n%c" mark))
2650 (help-form "\
2651 Type SPC or `y' to unmark one file, DEL or `n' to skip to next,
2652 `!' to unmark all remaining files with no more questions."))
2653 (goto-char (point-min))
2654 (while (if (eq mark ?\r)
2655 (re-search-forward dired-re-mark nil t)
2656 (search-forward string nil t))
2657 (if (or (not arg)
2658 (dired-query 'query "Unmark file `%s'? "
2659 (dired-get-filename t)))
2660 (progn (subst-char-in-region (1- (point)) (point)
2661 (preceding-char) ?\ )
2662 (setq count (1+ count)))))
2663 (message (if (= count 1) "1 mark removed"
2664 "%d marks removed")
2665 count))))
2667 ;; Logging failures operating on files, and showing the results.
2669 (defvar dired-log-buffer "*Dired log*")
2671 (defun dired-why ()
2672 "Pop up a buffer with error log output from Dired.
2673 A group of errors from a single command ends with a formfeed.
2674 Thus, use \\[backward-page] to find the beginning of a group of errors."
2675 (interactive)
2676 (if (get-buffer dired-log-buffer)
2677 (let ((owindow (selected-window))
2678 (window (display-buffer (get-buffer dired-log-buffer))))
2679 (unwind-protect
2680 (progn
2681 (select-window window)
2682 (goto-char (point-max))
2683 (forward-line -1)
2684 (backward-page 1)
2685 (recenter 0))
2686 (select-window owindow)))))
2688 (defun dired-log (log &rest args)
2689 ;; Log a message or the contents of a buffer.
2690 ;; If LOG is a string and there are more args, it is formatted with
2691 ;; those ARGS. Usually the LOG string ends with a \n.
2692 ;; End each bunch of errors with (dired-log t):
2693 ;; this inserts the current time and buffer at the start of the page,
2694 ;; and \f (formfeed) at the end.
2695 (let ((obuf (current-buffer)))
2696 (with-current-buffer (get-buffer-create dired-log-buffer)
2697 (goto-char (point-max))
2698 (let ((inhibit-read-only t))
2699 (cond ((stringp log)
2700 (insert (if args
2701 (apply (function format) log args)
2702 log)))
2703 ((bufferp log)
2704 (insert-buffer log))
2705 ((eq t log)
2706 (backward-page 1)
2707 (unless (bolp)
2708 (insert "\n"))
2709 (insert (current-time-string)
2710 "\tBuffer `" (buffer-name obuf) "'\n")
2711 (goto-char (point-max))
2712 (insert "\f\n")))))))
2714 (defun dired-log-summary (string failures)
2715 (if (= (length failures) 1)
2716 (message "%s"
2717 (with-current-buffer dired-log-buffer
2718 (goto-char (point-max))
2719 (backward-page 1)
2720 (if (eolp) (forward-line 1))
2721 (buffer-substring (point) (point-max))))
2722 (message (if failures "%s--type ? for details (%s)"
2723 "%s--type ? for details")
2724 string failures))
2725 ;; Log a summary describing a bunch of errors.
2726 (dired-log (concat "\n" string "\n"))
2727 (dired-log t))
2729 ;;; Sorting
2731 ;; Most ls can only sort by name or by date (with -t), nothing else.
2732 ;; GNU ls sorts on size with -S, on extension with -X, and unsorted with -U.
2733 ;; So anything that does not contain these is sort "by name".
2735 (defvar dired-ls-sorting-switches "SXU"
2736 "String of `ls' switches (single letters) except `t' that influence sorting.")
2738 (defvar dired-sort-by-date-regexp
2739 (concat "^-[^" dired-ls-sorting-switches
2740 "]*t[^" dired-ls-sorting-switches "]*$")
2741 "Regexp recognized by dired to set `by date' mode.")
2743 (defvar dired-sort-by-name-regexp
2744 (concat "^-[^t" dired-ls-sorting-switches "]+$")
2745 "Regexp recognized by dired to set `by name' mode.")
2747 (defvar dired-sort-inhibit nil
2748 "Non-nil means the Dired sort command is disabled.
2749 The idea is to set this buffer-locally in special Dired buffers.")
2751 (defun dired-sort-set-modeline ()
2752 ;; Set modeline display according to dired-actual-switches.
2753 ;; Modeline display of "by name" or "by date" guarantees the user a
2754 ;; match with the corresponding regexps. Non-matching switches are
2755 ;; shown literally.
2756 (setq mode-name
2757 (let (case-fold-search)
2758 (cond ((string-match dired-sort-by-name-regexp dired-actual-switches)
2759 "Dired by name")
2760 ((string-match dired-sort-by-date-regexp dired-actual-switches)
2761 "Dired by date")
2763 (concat "Dired " dired-actual-switches)))))
2764 (force-mode-line-update))
2766 (defun dired-sort-toggle-or-edit (&optional arg)
2767 "Toggle between sort by date/name and refresh the dired buffer.
2768 With a prefix argument you can edit the current listing switches instead."
2769 (interactive "P")
2770 (when dired-sort-inhibit
2771 (error "Cannot sort this Dired buffer"))
2772 (if arg
2773 (dired-sort-other
2774 (read-string "ls switches (must contain -l): " dired-actual-switches))
2775 (dired-sort-toggle)))
2777 (defun dired-sort-toggle ()
2778 ;; Toggle between sort by date/name. Reverts the buffer.
2779 (setq dired-actual-switches
2780 (let (case-fold-search)
2781 (if (string-match " " dired-actual-switches)
2782 ;; New toggle scheme: add/remove a trailing " -t"
2783 (if (string-match " -t\\'" dired-actual-switches)
2784 (substring dired-actual-switches 0 (match-beginning 0))
2785 (concat dired-actual-switches " -t"))
2786 ;; old toggle scheme: look for some 't' switch and add/remove it
2787 (concat
2788 "-l"
2789 (dired-replace-in-string (concat "[-lt"
2790 dired-ls-sorting-switches "]")
2792 dired-actual-switches)
2793 (if (string-match (concat "[t" dired-ls-sorting-switches "]")
2794 dired-actual-switches)
2796 "t")))))
2797 (dired-sort-set-modeline)
2798 (revert-buffer))
2800 ;; Some user code loads dired especially for this.
2801 ;; Don't do that--use replace-regexp-in-string instead.
2802 (defun dired-replace-in-string (regexp newtext string)
2803 ;; Replace REGEXP with NEWTEXT everywhere in STRING and return result.
2804 ;; NEWTEXT is taken literally---no \\DIGIT escapes will be recognized.
2805 (let ((result "") (start 0) mb me)
2806 (while (string-match regexp string start)
2807 (setq mb (match-beginning 0)
2808 me (match-end 0)
2809 result (concat result (substring string start mb) newtext)
2810 start me))
2811 (concat result (substring string start))))
2813 (defun dired-sort-other (switches &optional no-revert)
2814 ;; Specify new ls SWITCHES for current dired buffer. Values matching
2815 ;; `dired-sort-by-date-regexp' or `dired-sort-by-name-regexp' set the
2816 ;; minor mode accordingly, others appear literally in the mode line.
2817 ;; With optional second arg NO-REVERT, don't refresh the listing afterwards.
2818 (dired-sort-R-check switches)
2819 (setq dired-actual-switches switches)
2820 (if (eq major-mode 'dired-mode) (dired-sort-set-modeline))
2821 (or no-revert (revert-buffer)))
2823 (make-variable-buffer-local
2824 (defvar dired-subdir-alist-pre-R nil
2825 "Value of `dired-subdir-alist' before -R switch added."))
2827 (defun dired-sort-R-check (switches)
2828 "Additional processing of -R in ls option string SWITCHES.
2829 Saves `dired-subdir-alist' when R is set and restores saved value
2830 minus any directories explicitly deleted when R is cleared.
2831 To be called first in body of `dired-sort-other', etc."
2832 (cond
2833 ((and (string-match "R" switches)
2834 (not (string-match "R" dired-actual-switches)))
2835 ;; Adding -R to ls switches -- save `dired-subdir-alist':
2836 (setq dired-subdir-alist-pre-R dired-subdir-alist))
2837 ((and (string-match "R" dired-actual-switches)
2838 (not (string-match "R" switches)))
2839 ;; Deleting -R from ls switches -- revert to pre-R subdirs
2840 ;; that are still present:
2841 (setq dired-subdir-alist
2842 (if dired-subdir-alist-pre-R
2843 (let (subdirs)
2844 (while dired-subdir-alist-pre-R
2845 (if (assoc (caar dired-subdir-alist-pre-R)
2846 dired-subdir-alist)
2847 ;; subdir still present...
2848 (setq subdirs
2849 (cons (car dired-subdir-alist-pre-R)
2850 subdirs)))
2851 (setq dired-subdir-alist-pre-R
2852 (cdr dired-subdir-alist-pre-R)))
2853 (reverse subdirs))
2854 ;; No pre-R subdir alist, so revert to main directory
2855 ;; listing:
2856 (list (car (reverse dired-subdir-alist))))))))
2858 ;; To make this file smaller, the less common commands
2859 ;; go in a separate file. But autoload them here
2860 ;; to make the separation invisible.
2862 (autoload 'dired-diff "dired-aux"
2863 "Compare file at point with file FILE using `diff'.
2864 FILE defaults to the file at the mark. (That's the mark set by
2865 \\[set-mark-command], not by Dired's \\[dired-mark] command.)
2866 The prompted-for file is the first file given to `diff'."
2869 (autoload 'dired-backup-diff "dired-aux"
2870 "Diff this file with its backup file or vice versa.
2871 Uses the latest backup, if there are several numerical backups.
2872 If this file is a backup, diff it with its original.
2873 The backup file is the first file given to `diff'."
2876 (autoload 'dired-clean-directory "dired-aux"
2877 "Flag numerical backups for deletion.
2878 Spares `dired-kept-versions' latest versions, and `kept-old-versions' oldest.
2879 Positive prefix arg KEEP overrides `dired-kept-versions';
2880 Negative prefix arg KEEP overrides `kept-old-versions' with KEEP made positive.
2882 To clear the flags on these files, you can use \\[dired-flag-backup-files]
2883 with a prefix argument."
2886 (autoload 'dired-do-chmod "dired-aux"
2887 "Change the mode of the marked (or next ARG) files.
2888 This calls chmod, thus symbolic modes like `g+w' are allowed."
2891 (autoload 'dired-do-chgrp "dired-aux"
2892 "Change the group of the marked (or next ARG) files."
2895 (autoload 'dired-do-chown "dired-aux"
2896 "Change the owner of the marked (or next ARG) files."
2899 (autoload 'dired-do-print "dired-aux"
2900 "Print the marked (or next ARG) files.
2901 Uses the shell command coming from variables `lpr-command' and
2902 `lpr-switches' as default."
2905 (autoload 'dired-do-shell-command "dired-aux"
2906 "Run a shell command COMMAND on the marked files.
2907 If no files are marked or a specific numeric prefix arg is given,
2908 the next ARG files are used. Just \\[universal-argument] means the current file.
2909 The prompt mentions the file(s) or the marker, as appropriate.
2911 If there is a `*' in COMMAND, surrounded by whitespace, this runs
2912 COMMAND just once with the entire file list substituted there.
2914 If there is no `*', but there is a `?' in COMMAND, surrounded by
2915 whitespace, this runs COMMAND on each file individually with the
2916 file name substituted for `?'.
2918 Otherwise, this runs COMMAND on each file individually with the
2919 file name added at the end of COMMAND (separated by a space).
2921 `*' and `?' when not surrounded by whitespace have no special
2922 significance for `dired-do-shell-command', and are passed through
2923 normally to the shell, but you must confirm first. To pass `*' by
2924 itself to the shell as a wildcard, type `*\"\"'.
2926 If COMMAND produces output, it goes to a separate buffer.
2928 This feature does not try to redisplay Dired buffers afterward, as
2929 there's no telling what files COMMAND may have changed.
2930 Type \\[dired-do-redisplay] to redisplay the marked files.
2932 When COMMAND runs, its working directory is the top-level directory of
2933 the Dired buffer, so output files usually are created there instead of
2934 in a subdir.
2936 In a noninteractive call (from Lisp code), you must specify
2937 the list of file names explicitly with the FILE-LIST argument."
2940 (autoload 'dired-do-kill-lines "dired-aux"
2941 "Kill all marked lines (not the files).
2942 With a prefix arg, kill all lines not marked or flagged."
2945 (autoload 'dired-do-compress "dired-aux"
2946 "Compress or uncompress marked (or next ARG) files."
2949 (autoload 'dired-do-byte-compile "dired-aux"
2950 "Byte compile marked (or next ARG) Emacs Lisp files."
2953 (autoload 'dired-do-load "dired-aux"
2954 "Load the marked (or next ARG) Emacs Lisp files."
2957 (autoload 'dired-do-redisplay "dired-aux"
2958 "Redisplay all marked (or next ARG) files.
2959 If on a subdir line, redisplay that subdirectory. In that case,
2960 a prefix arg lets you edit the `ls' switches used for the new listing."
2963 (autoload 'dired-create-directory "dired-aux"
2964 "Create a directory called DIRECTORY."
2967 (autoload 'dired-do-copy "dired-aux"
2968 "Copy all marked (or next ARG) files, or copy the current file.
2969 Thus, a zero prefix argument copies nothing. But it toggles the
2970 variable `dired-copy-preserve-time' (which see)."
2973 (autoload 'dired-do-symlink "dired-aux"
2974 "Make symbolic links to current file or all marked (or next ARG) files.
2975 When operating on just the current file, you specify the new name.
2976 When operating on multiple or marked files, you specify a directory
2977 and new symbolic links are made in that directory
2978 with the same names that the files currently have."
2981 (autoload 'dired-do-hardlink "dired-aux"
2982 "Add names (hard links) current file or all marked (or next ARG) files.
2983 When operating on just the current file, you specify the new name.
2984 When operating on multiple or marked files, you specify a directory
2985 and new hard links are made in that directory
2986 with the same names that the files currently have."
2989 (autoload 'dired-do-rename "dired-aux"
2990 "Rename current file or all marked (or next ARG) files.
2991 When renaming just the current file, you specify the new name.
2992 When renaming multiple or marked files, you specify a directory."
2995 (autoload 'dired-do-rename-regexp "dired-aux"
2996 "Rename marked files containing REGEXP to NEWNAME.
2997 As each match is found, the user must type a character saying
2998 what to do with it. For directions, type \\[help-command] at that time.
2999 NEWNAME may contain \\=\\<n> or \\& as in `query-replace-regexp'.
3000 REGEXP defaults to the last regexp used.
3001 With a zero prefix arg, renaming by regexp affects the full file name;
3002 usually only the non-directory part of file names is used and changed."
3005 (autoload 'dired-do-copy-regexp "dired-aux"
3006 "Copy all marked files containing REGEXP to NEWNAME.
3007 See function `dired-do-rename-regexp' for more info."
3010 (autoload 'dired-do-hardlink-regexp "dired-aux"
3011 "Hardlink all marked files containing REGEXP to NEWNAME.
3012 See function `dired-do-rename-regexp' for more info."
3015 (autoload 'dired-do-symlink-regexp "dired-aux"
3016 "Symlink all marked files containing REGEXP to NEWNAME.
3017 See function `dired-do-rename-regexp' for more info."
3020 (autoload 'dired-upcase "dired-aux"
3021 "Rename all marked (or next ARG) files to upper case."
3024 (autoload 'dired-downcase "dired-aux"
3025 "Rename all marked (or next ARG) files to lower case."
3028 (autoload 'dired-maybe-insert-subdir "dired-aux"
3029 "Insert this subdirectory into the same dired buffer.
3030 If it is already present, just move to it (type \\[dired-do-redisplay] to refresh),
3031 else inserts it at its natural place (as `ls -lR' would have done).
3032 With a prefix arg, you may edit the ls switches used for this listing.
3033 You can add `R' to the switches to expand the whole tree starting at
3034 this subdirectory.
3035 This function takes some pains to conform to `ls -lR' output."
3038 (autoload 'dired-next-subdir "dired-aux"
3039 "Go to next subdirectory, regardless of level."
3042 (autoload 'dired-prev-subdir "dired-aux"
3043 "Go to previous subdirectory, regardless of level.
3044 When called interactively and not on a subdir line, go to this subdir's line."
3047 (autoload 'dired-goto-subdir "dired-aux"
3048 "Go to end of header line of DIR in this dired buffer.
3049 Return value of point on success, otherwise return nil.
3050 The next char is either \\n, or \\r if DIR is hidden."
3053 (autoload 'dired-mark-subdir-files "dired-aux"
3054 "Mark all files except `.' and `..'."
3057 (autoload 'dired-kill-subdir "dired-aux"
3058 "Remove all lines of current subdirectory.
3059 Lower levels are unaffected."
3062 (autoload 'dired-tree-up "dired-aux"
3063 "Go up ARG levels in the dired tree."
3066 (autoload 'dired-tree-down "dired-aux"
3067 "Go down in the dired tree."
3070 (autoload 'dired-hide-subdir "dired-aux"
3071 "Hide or unhide the current subdirectory and move to next directory.
3072 Optional prefix arg is a repeat factor.
3073 Use \\[dired-hide-all] to (un)hide all directories."
3076 (autoload 'dired-hide-all "dired-aux"
3077 "Hide all subdirectories, leaving only their header lines.
3078 If there is already something hidden, make everything visible again.
3079 Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."
3082 (autoload 'dired-show-file-type "dired-aux"
3083 "Print the type of FILE, according to the `file' command.
3084 If FILE is a symbolic link and the optional argument DEREF-SYMLINKS is
3085 true then the type of the file linked to by FILE is printed instead."
3088 (autoload 'dired-run-shell-command "dired-aux")
3090 (autoload 'dired-query "dired-aux")
3092 (if (eq system-type 'vax-vms)
3093 (load "dired-vms"))
3095 (provide 'dired)
3097 (run-hooks 'dired-load-hook) ; for your customizations
3099 ;;; dired.el ends here