(rmail-retry-failure): Special handling for mime.
[bpt/emacs.git] / lisp / dired.el
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c8472948 1;;; dired.el --- directory-browsing commands
52041219 2
9596811a 3;; Copyright (C) 1985, 86, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
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5;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>
6;; Maintainer: FSF
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7
8;; This file is part of GNU Emacs.
9
10;; GNU Emacs is free software; you can redistribute it and/or modify
11;; it under the terms of the GNU General Public License as published by
52041219 12;; the Free Software Foundation; either version 2, or (at your option)
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13;; any later version.
14
15;; GNU Emacs is distributed in the hope that it will be useful,
16;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18;; GNU General Public License for more details.
19
20;; You should have received a copy of the GNU General Public License
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21;; along with GNU Emacs; see the file COPYING. If not, write to the
22;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23;; Boston, MA 02111-1307, USA.
84fc2cfa 24
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25;;; Commentary:
26
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27;; This is a major mode for directory browsing and editing. It is
28;; documented in the Emacs manual.
29
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30;; Rewritten in 1990/1991 to add tree features, file marking and
31;; sorting by Sebastian Kremer <sk@thp.uni-koeln.de>.
32;; Finished up by rms in 1992.
33
52041219 34;;; Code:
492d2437 35
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36;;; Customizable variables
37
84fc2cfa 38;;;###autoload
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39(defvar dired-listing-switches "-al"
40 "*Switches passed to `ls' for dired. MUST contain the `l' option.
41May contain all other options that don't contradict `-l';
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42may contain even `F', `b', `i' and `s'. See also the variable
43`dired-ls-F-marks-symlinks' concerning the `F' switch.")
84fc2cfa 44
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45; Don't use absolute paths as /bin should be in any PATH and people
46; may prefer /usr/local/gnu/bin or whatever. However, chown is
47; usually not in PATH.
48
49;;;###autoload
84fc2cfa 50(defvar dired-chown-program
64202797 51 (if (memq system-type '(hpux dgux usg-unix-v irix linux gnu/linux))
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52 "chown"
53 (if (file-exists-p "/usr/sbin/chown")
54 "/usr/sbin/chown"
55 "/etc/chown"))
eb8c3be9 56 "Name of chown command (usually `chown' or `/etc/chown').")
492d2437 57
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58(defvar dired-chmod-program
59 (if (eq system-type 'windows-nt)
60 "chmode" "chmod")
61 "Name of chmod command (usually `chmod' or `chmode').")
62
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63;;;###autoload
64(defvar dired-ls-F-marks-symlinks nil
65 "*Informs dired about how `ls -lF' marks symbolic links.
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66Set this to t if `ls' (or whatever program is specified by
67`insert-directory-program') with `-lF' marks the symbolic link
492d2437 68itself with a trailing @ (usually the case under Ultrix).
84fc2cfa 69
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70Example: if `ln -s foo bar; ls -F bar' gives `bar -> foo', set it to
71nil (the default), if it gives `bar@ -> foo', set it to t.
72
73Dired checks if there is really a @ appended. Thus, if you have a
74marking `ls' program on one host and a non-marking on another host, and
75don't care about symbolic links which really end in a @, you can
76always set this variable to t.")
77
78;;;###autoload
79(defvar dired-trivial-filenames "^\\.\\.?$\\|^#"
80 "*Regexp of files to skip when finding first file of a directory.
81A value of nil means move to the subdir line.
82A value of t means move to first file.")
83
84;;;###autoload
85(defvar dired-keep-marker-rename t
86 ;; Use t as default so that moved files "take their markers with them".
87 "*Controls marking of renamed files.
88If t, files keep their previous marks when they are renamed.
89If a character, renamed files (whether previously marked or not)
90are afterward marked with that character.")
91
92;;;###autoload
93(defvar dired-keep-marker-copy ?C
94 "*Controls marking of copied files.
95If t, copied files are marked if and as the corresponding original files were.
96If a character, copied files are unconditionally marked with that character.")
97
98;;;###autoload
99(defvar dired-keep-marker-hardlink ?H
100 "*Controls marking of newly made hard links.
101If t, they are marked if and as the files linked to were marked.
102If a character, new links are unconditionally marked with that character.")
103
104;;;###autoload
105(defvar dired-keep-marker-symlink ?Y
106 "*Controls marking of newly made symbolic links.
107If t, they are marked if and as the files linked to were marked.
108If a character, new links are unconditionally marked with that character.")
109
110;;;###autoload
111(defvar dired-dwim-target nil
112 "*If non-nil, dired tries to guess a default target directory.
113This means: if there is a dired buffer displayed in the next window,
114use its current subdir, instead of the current subdir of this dired buffer.
115
116The target is used in the prompt for file copy, rename etc.")
117
118;;;###autoload
119(defvar dired-copy-preserve-time t
120 "*If non-nil, Dired preserves the last-modified time in a file copy.
121\(This works on only some systems.)")
122
123;;; Hook variables
124
125(defvar dired-load-hook nil
126 "Run after loading dired.
127You can customize key bindings or load extensions with this.")
128
129(defvar dired-mode-hook nil
130 "Run at the very end of dired-mode.")
131
132(defvar dired-before-readin-hook nil
133 "This hook is run before a dired buffer is read in (created or reverted).")
134
135(defvar dired-after-readin-hook nil
136 "Hook run after each time a file or directory is read by Dired.
137After each listing of a file or directory, this hook is run
138with the buffer narrowed to the listing.")
139;; Note this can't simply be run inside function `dired-ls' as the hook
140;; functions probably depend on the dired-subdir-alist to be OK.
141
142;;; Internal variables
143
144(defvar dired-marker-char ?* ; the answer is 42
145 ;; so that you can write things like
146 ;; (let ((dired-marker-char ?X))
147 ;; ;; great code using X markers ...
148 ;; )
149 ;; For example, commands operating on two sets of files, A and B.
150 ;; Or marking files with digits 0-9. This could implicate
151 ;; concentric sets or an order for the marked files.
152 ;; The code depends on dynamic scoping on the marker char.
153 "In Dired, the current mark character.
154This is what the `do' commands look for and what the `mark' commands store.")
155
156(defvar dired-del-marker ?D
157 "Character used to flag files for deletion.")
158
159(defvar dired-shrink-to-fit
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160 t
161;; I see no reason ever to make this nil -- rms.
162;; (> baud-rate search-slow-speed)
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163 "Non-nil means Dired shrinks the display buffer to fit the marked files.")
164
165(defvar dired-flagging-regexp nil);; Last regexp used to flag files.
166
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167(defvar dired-file-version-alist)
168
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169(defvar dired-directory nil
170 "The directory name or shell wildcard that was used as argument to `ls'.
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171Local to each dired buffer. May be a list, in which case the car is the
172directory name and the cdr is the actual files to list.")
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173
174(defvar dired-actual-switches nil
175 "The value of `dired-listing-switches' used to make this buffer's text.")
176
177(defvar dired-re-inode-size "[0-9 \t]*"
178 "Regexp for optional initial inode and file size as made by `ls -i -s'.")
179
180;; These regexps must be tested at beginning-of-line, but are also
181;; used to search for next matches, so neither omitting "^" nor
182;; replacing "^" by "\n" (to make it slightly faster) will work.
183
184(defvar dired-re-mark "^[^ \n]")
185;; "Regexp matching a marked line.
186;; Important: the match ends just after the marker."
187(defvar dired-re-maybe-mark "^. ")
188(defvar dired-re-dir (concat dired-re-maybe-mark dired-re-inode-size "d"))
189(defvar dired-re-sym (concat dired-re-maybe-mark dired-re-inode-size "l"))
190(defvar dired-re-exe;; match ls permission string of an executable file
191 (mapconcat (function
192 (lambda (x)
193 (concat dired-re-maybe-mark dired-re-inode-size x)))
194 '("-[-r][-w][xs][-r][-w].[-r][-w]."
195 "-[-r][-w].[-r][-w][xs][-r][-w]."
196 "-[-r][-w].[-r][-w].[-r][-w][xst]")
197 "\\|"))
e6cecd2b 198(defvar dired-re-perms "[-bcdlps][-r][-w].[-r][-w].[-r][-w].")
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199(defvar dired-re-dot "^.* \\.\\.?$")
200
38819778 201;; The subdirectory names in this list are expanded.
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202(defvar dired-subdir-alist nil
203 "Association list of subdirectories and their buffer positions.
204Each subdirectory has an element: (DIRNAME . STARTMARKER).
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205The order of elements is the reverse of the order in the buffer.
206In simple cases, this list contains one element.")
492d2437 207
cdf156a9 208(defvar dired-subdir-regexp "^. \\([^\n\r]+\\)\\(:\\)[\n\r]"
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209 "Regexp matching a maybe hidden subdirectory line in `ls -lR' output.
210Subexpression 1 is the subdirectory proper, no trailing colon.
211The match starts at the beginning of the line and ends after the end
212of the line (\\n or \\r).
213Subexpression 2 must end right before the \\n or \\r.")
214
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215(defvar dired-font-lock-keywords
216 (list
217 ;;
218 ;; Directory headers.
219 (list dired-subdir-regexp '(1 font-lock-type-face))
220 ;;
221 ;; We make heavy use of MATCH-ANCHORED, since the regexps don't identify the
222 ;; file name itself. We search for Dired defined regexps, and then use the
223 ;; Dired defined function `dired-move-to-filename' before searching for the
224 ;; simple regexp ".+". It is that regexp which matches the file name.
225 ;;
226 ;; Dired marks.
227 (list dired-re-mark
228 '(0 font-lock-reference-face)
229 '(".+" (dired-move-to-filename) nil (0 font-lock-warning-face)))
230 ;;
231 ;; Files that are group or world writable.
232 (list (concat dired-re-maybe-mark dired-re-inode-size
233 "\\([-d]\\(....w....\\|.......w.\\)\\)")
234 '(1 font-lock-comment-face)
235 '(".+" (dired-move-to-filename) nil (0 font-lock-comment-face)))
236 ;;
237 ;; Subdirectories.
238 (list dired-re-dir
239 '(".+" (dired-move-to-filename) nil (0 font-lock-function-name-face)))
240 ;;
241 ;; Symbolic links.
242 (list dired-re-sym
243 '(".+" (dired-move-to-filename) nil (0 font-lock-keyword-face)))
244 ;;
245 ;; Files suffixed with `completion-ignored-extensions'.
246 '(eval .
247 (let ((extensions (mapcar 'regexp-quote completion-ignored-extensions)))
248 ;; It is quicker to first find just an extension, then go back to the
249 ;; start of that file name. So we do this complex MATCH-ANCHORED form.
250 (list (concat "\\(" (mapconcat 'identity extensions "\\|") "\\|#\\)$")
251 '(".+" (dired-move-to-filename) nil (0 font-lock-string-face))))))
252 "Additional expressions to highlight in Dired mode.")
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253\f
254;;; Macros must be defined before they are used, for the byte compiler.
255
256;; Mark all files for which CONDITION evals to non-nil.
257;; CONDITION is evaluated on each line, with point at beginning of line.
258;; MSG is a noun phrase for the type of files being marked.
259;; It should end with a noun that can be pluralized by adding `s'.
260;; Return value is the number of files marked, or nil if none were marked.
261(defmacro dired-mark-if (predicate msg)
262 (` (let (buffer-read-only count)
263 (save-excursion
264 (setq count 0)
265 (if (, msg) (message "Marking %ss..." (, msg)))
266 (goto-char (point-min))
267 (while (not (eobp))
268 (if (, predicate)
269 (progn
270 (delete-char 1)
271 (insert dired-marker-char)
272 (setq count (1+ count))))
273 (forward-line 1))
274 (if (, msg) (message "%s %s%s %s%s."
275 count
276 (, msg)
277 (dired-plural-s count)
278 (if (eq dired-marker-char ?\040) "un" "")
279 (if (eq dired-marker-char dired-del-marker)
280 "flagged" "marked"))))
281 (and (> count 0) count))))
282
283(defmacro dired-map-over-marks (body arg &optional show-progress)
284;; "Macro: Perform BODY with point somewhere on each marked line
285;;and return a list of BODY's results.
286;;If no marked file could be found, execute BODY on the current line.
287;; If ARG is an integer, use the next ARG (or previous -ARG, if ARG<0)
288;; files instead of the marked files.
289;; In that case point is dragged along. This is so that commands on
290;; the next ARG (instead of the marked) files can be chained easily.
291;; If ARG is otherwise non-nil, use current file instead.
292;;If optional third arg SHOW-PROGRESS evaluates to non-nil,
293;; redisplay the dired buffer after each file is processed.
294;;No guarantee is made about the position on the marked line.
295;; BODY must ensure this itself if it depends on this.
296;;Search starts at the beginning of the buffer, thus the car of the list
297;; corresponds to the line nearest to the buffer's bottom. This
298;; is also true for (positive and negative) integer values of ARG.
299;;BODY should not be too long as it is expanded four times."
300;;
301;;Warning: BODY must not add new lines before point - this may cause an
302;;endless loop.
303;;This warning should not apply any longer, sk 2-Sep-1991 14:10.
304 (` (prog1
305 (let (buffer-read-only case-fold-search found results)
306 (if (, arg)
307 (if (integerp (, arg))
308 (progn;; no save-excursion, want to move point.
309 (dired-repeat-over-lines
310 (, arg)
311 (function (lambda ()
312 (if (, show-progress) (sit-for 0))
313 (setq results (cons (, body) results)))))
314 (if (< (, arg) 0)
315 (nreverse results)
316 results))
317 ;; non-nil, non-integer ARG means use current file:
318 (list (, body)))
319 (let ((regexp (dired-marker-regexp)) next-position)
320 (save-excursion
321 (goto-char (point-min))
322 ;; remember position of next marked file before BODY
323 ;; can insert lines before the just found file,
324 ;; confusing us by finding the same marked file again
325 ;; and again and...
326 (setq next-position (and (re-search-forward regexp nil t)
327 (point-marker))
328 found (not (null next-position)))
329 (while next-position
330 (goto-char next-position)
331 (if (, show-progress) (sit-for 0))
332 (setq results (cons (, body) results))
333 ;; move after last match
334 (goto-char next-position)
335 (forward-line 1)
336 (set-marker next-position nil)
337 (setq next-position (and (re-search-forward regexp nil t)
338 (point-marker)))))
339 (if found
340 results
341 (list (, body))))))
342 ;; save-excursion loses, again
343 (dired-move-to-filename))))
344
345(defun dired-get-marked-files (&optional localp arg)
346 "Return the marked files' names as list of strings.
347The list is in the same order as the buffer, that is, the car is the
348 first marked file.
349Values returned are normally absolute pathnames.
350Optional arg LOCALP as in `dired-get-filename'.
351Optional second argument ARG forces to use other files. If ARG is an
352 integer, use the next ARG files. If ARG is otherwise non-nil, use
353 current file. Usually ARG comes from the current prefix arg."
84fc2cfa 354 (save-excursion
492d2437 355 (nreverse (dired-map-over-marks (dired-get-filename localp) arg))))
84fc2cfa 356
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357\f
358;; Function dired-ls is redefinable for VMS, ange-ftp, Prospero or
359;; other special applications.
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360\f
361;; The dired command
362
363(defun dired-read-dir-and-switches (str)
364 ;; For use in interactive.
365 (reverse (list
366 (if current-prefix-arg
367 (read-string "Dired listing switches: "
368 dired-listing-switches))
369 (read-file-name (format "Dired %s(directory): " str)
370 nil default-directory nil))))
84fc2cfa 371
492d2437 372;;;###autoload (define-key ctl-x-map "d" 'dired)
84fc2cfa 373;;;###autoload
492d2437 374(defun dired (dirname &optional switches)
84fc2cfa 375 "\"Edit\" directory DIRNAME--delete, rename, print, etc. some files in it.
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376Optional second argument SWITCHES specifies the `ls' options used.
377\(Interactively, use a prefix argument to be able to specify SWITCHES.)
378Dired displays a list of files in DIRNAME (which may also have
8d23c16b 379shell wildcards appended to select certain files). If DIRNAME is a cons,
1015daba 380its first element is taken as the directory name and the rest as an explicit
8d23c16b 381list of files to make directory entries for.
52041219 382\\<dired-mode-map>\
492d2437 383You can move around in it with the usual commands.
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384You can flag files for deletion with \\[dired-flag-file-deletion] and then
385delete them by typing \\[dired-do-flagged-delete].
492d2437 386Type \\[describe-mode] after entering dired for more info.
84fc2cfa 387
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388If DIRNAME is already in a dired buffer, that buffer is used without refresh."
389 ;; Cannot use (interactive "D") because of wildcards.
390 (interactive (dired-read-dir-and-switches ""))
391 (switch-to-buffer (dired-noselect dirname switches)))
392
393;;;###autoload (define-key ctl-x-4-map "d" 'dired-other-window)
84fc2cfa 394;;;###autoload
492d2437 395(defun dired-other-window (dirname &optional switches)
84fc2cfa 396 "\"Edit\" directory DIRNAME. Like `dired' but selects in another window."
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397 (interactive (dired-read-dir-and-switches "in other window "))
398 (switch-to-buffer-other-window (dired-noselect dirname switches)))
84fc2cfa 399
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400;;;###autoload (define-key ctl-x-5-map "d" 'dired-other-frame)
401;;;###autoload
402(defun dired-other-frame (dirname &optional switches)
403 "\"Edit\" directory DIRNAME. Like `dired' but makes a new frame."
404 (interactive (dired-read-dir-and-switches "in other frame "))
405 (switch-to-buffer-other-frame (dired-noselect dirname switches)))
406
84fc2cfa 407;;;###autoload
8d23c16b 408(defun dired-noselect (dir-or-list &optional switches)
84fc2cfa 409 "Like `dired' but returns the dired buffer as value, does not select it."
8d23c16b 410 (or dir-or-list (setq dir-or-list default-directory))
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411 ;; This loses the distinction between "/foo/*/" and "/foo/*" that
412 ;; some shells make:
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413 (let (dirname)
414 (if (consp dir-or-list)
415 (setq dirname (car dir-or-list))
416 (setq dirname dir-or-list))
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417 (setq dirname (abbreviate-file-name
418 (expand-file-name (directory-file-name dirname))))
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419 (if find-file-visit-truename
420 (setq dirname (file-truename dirname)))
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421 (if (file-directory-p dirname)
422 (setq dirname (file-name-as-directory dirname)))
423 (if (consp dir-or-list)
424 (setq dir-or-list (cons dirname (cdr dir-or-list)))
425 (setq dir-or-list dirname))
426 (dired-internal-noselect dir-or-list switches)))
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427
428;; Separate function from dired-noselect for the sake of dired-vms.el.
6a4cd605 429(defun dired-internal-noselect (dir-or-list &optional switches mode)
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430 ;; If there is an existing dired buffer for DIRNAME, just leave
431 ;; buffer as it is (don't even call dired-revert).
432 ;; This saves time especially for deep trees or with ange-ftp.
433 ;; The user can type `g'easily, and it is more consistent with find-file.
434 ;; But if SWITCHES are given they are probably different from the
435 ;; buffer's old value, so call dired-sort-other, which does
436 ;; revert the buffer.
437 ;; A pity we can't possibly do "Directory has changed - refresh? "
438 ;; like find-file does.
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439 ;; Optional argument MODE is passed to dired-find-buffer-nocreate,
440 ;; see there.
8d23c16b 441 (let* ((dirname (if (consp dir-or-list) (car dir-or-list) dir-or-list))
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442 ;; The following line used to use dir-or-list.
443 ;; That never found an existing buffer, in the case
444 ;; where it is a list.
445 (buffer (dired-find-buffer-nocreate dirname mode))
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446 ;; note that buffer already is in dired-mode, if found
447 (new-buffer-p (not buffer))
448 (old-buf (current-buffer)))
449 (or buffer
450 (let ((default-major-mode 'fundamental-mode))
451 ;; We don't want default-major-mode to run hooks and set auto-fill
452 ;; or whatever, now that dired-mode does not
453 ;; kill-all-local-variables any longer.
454 (setq buffer (create-file-buffer (directory-file-name dirname)))))
455 (set-buffer buffer)
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456 (if (not new-buffer-p) ; existing buffer ...
457 (cond (switches ; ... but new switches
458 ;; file list may have changed
459 (if (consp dir-or-list)
460 (setq dired-directory dir-or-list))
461 ;; this calls dired-revert
462 (dired-sort-other switches))
463 ;; If directory has changed on disk, offer to revert.
464 ((if (let ((attributes (file-attributes dirname))
465 (modtime (visited-file-modtime)))
466 (or (eq modtime 0)
467 (not (eq (car attributes) t))
468 (and (= (car (nth 5 attributes)) (car modtime))
469 (= (nth 1 (nth 5 attributes)) (cdr modtime)))))
470 nil
952e8cb5 471 (message "%s"
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472 (substitute-command-keys
473 "Directory has changed on disk; type \\[revert-buffer] to update Dired")))))
492d2437 474 ;; Else a new buffer
847aabce 475 (setq default-directory
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476 (if (file-directory-p dirname)
477 dirname
478 (file-name-directory dirname)))
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479 (or switches (setq switches dired-listing-switches))
480 (dired-mode dirname switches)
6a4cd605 481 (if mode (funcall mode))
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482 ;; default-directory and dired-actual-switches are set now
483 ;; (buffer-local), so we can call dired-readin:
484 (let ((failed t))
485 (unwind-protect
8d23c16b 486 (progn (dired-readin dir-or-list buffer)
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487 (setq failed nil))
488 ;; dired-readin can fail if parent directories are inaccessible.
489 ;; Don't leave an empty buffer around in that case.
490 (if failed (kill-buffer buffer))))
491 ;; No need to narrow since the whole buffer contains just
492 ;; dired-readin's output, nothing else. The hook can
493 ;; successfully use dired functions (e.g. dired-get-filename)
494 ;; as the subdir-alist has been built in dired-readin.
495 (run-hooks 'dired-after-readin-hook)
496 (goto-char (point-min))
497 (dired-initial-position dirname))
498 (set-buffer old-buf)
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499 buffer))
500
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501(defun dired-find-buffer-nocreate (dirname &optional mode)
502 ;; This differs from dired-buffers-for-dir in that it does not consider
503 ;; subdirs of default-directory and searches for the first match only.
504 ;; Also, the major mode must be MODE.
f5b06a95 505 (let (found (blist dired-buffers)) ; was (buffer-list)
6a4cd605 506 (or mode (setq mode 'dired-mode))
492d2437 507 (while blist
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508 (if (null (buffer-name (cdr (car blist))))
509 (setq blist (cdr blist))
510 (save-excursion
511 (set-buffer (cdr (car blist)))
6a4cd605 512 (if (and (eq major-mode mode)
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513 (if (consp dired-directory)
514 (equal (car dired-directory) dirname)
515 (equal dired-directory dirname)))
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516 (setq found (cdr (car blist))
517 blist nil)
518 (setq blist (cdr blist))))))
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519 found))
520
521\f
522;; Read in a new dired buffer
523
524;; dired-readin differs from dired-insert-subdir in that it accepts
525;; wildcards, erases the buffer, and builds the subdir-alist anew
526;; (including making it buffer-local and clearing it first).
8d23c16b 527(defun dired-readin (dir-or-list buffer)
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528 ;; default-directory and dired-actual-switches must be buffer-local
529 ;; and initialized by now.
530 ;; Thus we can test (equal default-directory dirname) instead of
531 ;; (file-directory-p dirname) and save a filesystem transaction.
532 ;; Also, we can run this hook which may want to modify the switches
533 ;; based on default-directory, e.g. with ange-ftp to a SysV host
534 ;; where ls won't understand -Al switches.
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535 (let (dirname)
536 (if (consp dir-or-list)
537 (setq dirname (car dir-or-list))
538 (setq dirname dir-or-list))
539 (setq dirname (expand-file-name dirname))
540 (if (consp dir-or-list)
541 (setq dir-or-list (cons dirname (cdr dir-or-list))))
542 (run-hooks 'dired-before-readin-hook)
543 (save-excursion
544 (message "Reading directory %s..." dirname)
545 (set-buffer buffer)
546 (let (buffer-read-only (failed t))
547 (widen)
548 (erase-buffer)
549 (dired-readin-insert dir-or-list)
550 (indent-rigidly (point-min) (point-max) 2)
551 ;; We need this to make the root dir have a header line as all
552 ;; other subdirs have:
553 (goto-char (point-min))
554 (dired-insert-headerline default-directory)
555 ;; can't run dired-after-readin-hook here, it may depend on the subdir
556 ;; alist to be OK.
557 )
558 (message "Reading directory %s...done" dirname)
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559 ;; Must first make alist buffer local and set it to nil because
560 ;; dired-build-subdir-alist will call dired-clear-alist first
561 (set (make-local-variable 'dired-subdir-alist) nil)
8197b8bf 562 (dired-build-subdir-alist)
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563 (let ((attributes (file-attributes dirname)))
564 (if (eq (car attributes) t)
565 (set-visited-file-modtime (nth 5 attributes))))
8197b8bf 566 (set-buffer-modified-p nil))))
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567
568;; Subroutines of dired-readin
569
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570(defun dired-readin-insert (dir-or-list)
571 ;; Just insert listing for the passed-in directory or
572 ;; directory-and-file list, assuming a clean buffer.
573 (let (dirname)
574 (if (consp dir-or-list)
575 (setq dirname (car dir-or-list))
576 (setq dirname dir-or-list))
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577 ;; Expand before comparing in case one or both have been abbreviated.
578 (if (and (equal (expand-file-name default-directory)
579 (expand-file-name dirname))
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580 (not (consp dir-or-list)))
581 ;; If we are reading a whole single directory...
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582 (dired-insert-directory dir-or-list dired-actual-switches nil t)
583 (if (not (file-readable-p
584 (directory-file-name (file-name-directory dirname))))
585 (error "Directory %s inaccessible or nonexistent" dirname)
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586 ;; Else assume it contains wildcards,
587 ;; unless it is an explicit list of files.
588 (dired-insert-directory dir-or-list dired-actual-switches
589 (not (listp dir-or-list)))
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590 (save-excursion ;; insert wildcard instead of total line:
591 (goto-char (point-min))
592 (insert "wildcard " (file-name-nondirectory dirname) "\n"))))))
593
594(defun dired-insert-directory (dir-or-list switches &optional wildcard full-p)
595 ;; Do the right thing whether dir-or-list is atomic or not. If it is,
596 ;; inset all files listed in the cdr (the car is the passed-in directory
f726257e 597 ;; list).
9888aa65 598 (let ((opoint (point))
02b5d79c 599 (process-environment (copy-sequence process-environment))
9888aa65 600 end)
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601 ;; We used to specify the C locale here, to force English month names;
602 ;; but this should not be necessary any more,
603 ;; with the new value of dired-move-to-filename-regexp.
cb88a3db 604 (if (consp dir-or-list)
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605 ;; In this case, use the file names in the cdr
606 ;; exactly as originally given to dired-noselect.
607 (mapcar
608 (function (lambda (x) (insert-directory x switches wildcard full-p)))
609 (cdr dir-or-list))
610 ;; Expand the file name here because it may have been abbreviated
611 ;; in dired-noselect.
f150bd2b 612 (insert-directory (expand-file-name dir-or-list) switches wildcard full-p))
9888aa65 613 ;; Quote certain characters, unless ls quoted them for us.
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614 (if (not (string-match "b" dired-actual-switches))
615 (save-excursion
616 (setq end (point-marker))
617 (goto-char opoint)
618 (while (search-forward "\\" end t)
619 (replace-match "\\\\" nil t))
620 (goto-char opoint)
621 (while (search-forward "\^m" end t)
622 (replace-match "\\015" nil t))
623 (set-marker end nil)))
cb88a3db 624 (dired-insert-set-properties opoint (point)))
8d23c16b 625 (setq dired-directory dir-or-list))
492d2437 626
9888aa65 627;; Make the file names highlight when the mouse is on them.
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628(defun dired-insert-set-properties (beg end)
629 (save-excursion
630 (goto-char beg)
631 (while (< (point) end)
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632 (condition-case nil
633 (if (dired-move-to-filename)
634 (put-text-property (point)
635 (save-excursion
636 (dired-move-to-end-of-filename)
637 (point))
638 'mouse-face 'highlight))
639 (error nil))
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640 (forward-line 1))))
641
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642(defun dired-insert-headerline (dir);; also used by dired-insert-subdir
643 ;; Insert DIR's headerline with no trailing slash, exactly like ls
644 ;; would, and put cursor where dired-build-subdir-alist puts subdir
645 ;; boundaries.
646 (save-excursion (insert " " (directory-file-name dir) ":\n")))
647
648\f
649;; Reverting a dired buffer
650
84fc2cfa 651(defun dired-revert (&optional arg noconfirm)
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652 ;; Reread the dired buffer. Must also be called after
653 ;; dired-actual-switches have changed.
654 ;; Should not fail even on completely garbaged buffers.
655 ;; Preserves old cursor, marks/flags, hidden-p.
656 (widen) ; just in case user narrowed
84fc2cfa 657 (let ((opoint (point))
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658 (ofile (dired-get-filename nil t))
659 (mark-alist nil) ; save marked files
660 (hidden-subdirs (dired-remember-hidden))
661 (old-subdir-alist (cdr (reverse dired-subdir-alist))) ; except pwd
662 (case-fold-search nil) ; we check for upper case ls flags
663 buffer-read-only)
664 (goto-char (point-min))
665 (setq mark-alist;; only after dired-remember-hidden since this unhides:
666 (dired-remember-marks (point-min) (point-max)))
667 ;; treat top level dir extra (it may contain wildcards)
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668 (dired-uncache
669 (if (consp dired-directory) (car dired-directory) dired-directory))
84fc2cfa 670 (dired-readin dired-directory (current-buffer))
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671 (let ((dired-after-readin-hook nil))
672 ;; don't run that hook for each subdir...
673 (dired-insert-old-subdirs old-subdir-alist))
674 (dired-mark-remembered mark-alist) ; mark files that were marked
675 ;; ... run the hook for the whole buffer, and only after markers
676 ;; have been reinserted (else omitting in dired-x would omit marked files)
677 (run-hooks 'dired-after-readin-hook) ; no need to narrow
678 (or (and ofile (dired-goto-file ofile)) ; move cursor to where it
679 (goto-char opoint)) ; was before
84fc2cfa 680 (dired-move-to-filename)
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681 (save-excursion ; hide subdirs that were hidden
682 (mapcar (function (lambda (dir)
683 (if (dired-goto-subdir dir)
684 (dired-hide-subdir 1))))
685 hidden-subdirs)))
686 ;; outside of the let scope
687;;; Might as well not override the user if the user changed this.
688;;; (setq buffer-read-only t)
689 )
690
691;; Subroutines of dired-revert
692;; Some of these are also used when inserting subdirs.
693
694(defun dired-remember-marks (beg end)
695 ;; Return alist of files and their marks, from BEG to END.
696 (if selective-display ; must unhide to make this work.
697 (let (buffer-read-only)
698 (subst-char-in-region beg end ?\r ?\n)))
699 (let (fil chr alist)
700 (save-excursion
701 (goto-char beg)
702 (while (re-search-forward dired-re-mark end t)
703 (if (setq fil (dired-get-filename nil t))
704 (setq chr (preceding-char)
705 alist (cons (cons fil chr) alist)))))
706 alist))
707
708;; Mark all files remembered in ALIST.
709;; Each element of ALIST looks like (FILE . MARKERCHAR).
710(defun dired-mark-remembered (alist)
711 (let (elt fil chr)
712 (while alist
713 (setq elt (car alist)
714 alist (cdr alist)
715 fil (car elt)
716 chr (cdr elt))
717 (if (dired-goto-file fil)
718 (save-excursion
719 (beginning-of-line)
720 (delete-char 1)
721 (insert chr))))))
722
723;; Return a list of names of subdirs currently hidden.
724(defun dired-remember-hidden ()
725 (let ((l dired-subdir-alist) dir pos result)
726 (while l
727 (setq dir (car (car l))
728 pos (cdr (car l))
729 l (cdr l))
730 (goto-char pos)
731 (skip-chars-forward "^\r\n")
52041219 732 (if (eq (following-char) ?\r)
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733 (setq result (cons dir result))))
734 result))
735
736;; Try to insert all subdirs that were displayed before,
737;; according to the former subdir alist OLD-SUBDIR-ALIST.
738(defun dired-insert-old-subdirs (old-subdir-alist)
739 (or (string-match "R" dired-actual-switches)
740 (let (elt dir)
741 (while old-subdir-alist
742 (setq elt (car old-subdir-alist)
743 old-subdir-alist (cdr old-subdir-alist)
744 dir (car elt))
745 (condition-case ()
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746 (progn
747 (dired-uncache dir)
748 (dired-insert-subdir dir))
492d2437 749 (error nil))))))
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750
751;; Remove directory DIR from any directory cache.
752(defun dired-uncache (dir)
6eaebaa2 753 (let ((handler (find-file-name-handler dir 'dired-uncache)))
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754 (if handler
755 (funcall handler 'dired-uncache dir))))
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756\f
757;; dired mode key bindings and initialization
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758
759(defvar dired-mode-map nil "Local keymap for dired-mode buffers.")
760(if dired-mode-map
761 nil
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762 ;; This looks ugly when substitute-command-keys uses C-d instead d:
763 ;; (define-key dired-mode-map "\C-d" 'dired-flag-file-deletion)
764
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765 (let ((map (make-keymap)))
766 (suppress-keymap map)
767 (define-key map [mouse-2] 'dired-mouse-find-file-other-window)
768 ;; Commands to mark or flag certain categories of files
769 (define-key map "#" 'dired-flag-auto-save-files)
3e1fb00f 770 (define-key map "." 'dired-clean-directory)
3e1fb00f 771 (define-key map "~" 'dired-flag-backup-files)
84d3f6e8 772 (define-key map "&" 'dired-flag-garbage-files)
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773 ;; Upper case keys (except !) for operating on the marked files
774 (define-key map "A" 'dired-do-search)
775 (define-key map "C" 'dired-do-copy)
776 (define-key map "B" 'dired-do-byte-compile)
777 (define-key map "D" 'dired-do-delete)
778 (define-key map "G" 'dired-do-chgrp)
779 (define-key map "H" 'dired-do-hardlink)
780 (define-key map "L" 'dired-do-load)
781 (define-key map "M" 'dired-do-chmod)
782 (define-key map "O" 'dired-do-chown)
783 (define-key map "P" 'dired-do-print)
784 (define-key map "Q" 'dired-do-query-replace)
785 (define-key map "R" 'dired-do-rename)
786 (define-key map "S" 'dired-do-symlink)
787 (define-key map "X" 'dired-do-shell-command)
788 (define-key map "Z" 'dired-do-compress)
789 (define-key map "!" 'dired-do-shell-command)
790 ;; Comparison commands
791 (define-key map "=" 'dired-diff)
792 (define-key map "\M-=" 'dired-backup-diff)
793 ;; Tree Dired commands
794 (define-key map "\M-\C-?" 'dired-unmark-all-files)
795 (define-key map "\M-\C-d" 'dired-tree-down)
796 (define-key map "\M-\C-u" 'dired-tree-up)
797 (define-key map "\M-\C-n" 'dired-next-subdir)
798 (define-key map "\M-\C-p" 'dired-prev-subdir)
799 ;; move to marked files
800 (define-key map "\M-{" 'dired-prev-marked-file)
801 (define-key map "\M-}" 'dired-next-marked-file)
802 ;; Make all regexp commands share a `%' prefix:
803 ;; We used to get to the submap via a symbol dired-regexp-prefix,
804 ;; but that seems to serve little purpose, and copy-keymap
805 ;; does a better job without it.
806 (define-key map "%" nil)
807 (define-key map "%u" 'dired-upcase)
808 (define-key map "%l" 'dired-downcase)
809 (define-key map "%d" 'dired-flag-files-regexp)
810 (define-key map "%m" 'dired-mark-files-regexp)
811 (define-key map "%r" 'dired-do-rename-regexp)
812 (define-key map "%C" 'dired-do-copy-regexp)
813 (define-key map "%H" 'dired-do-hardlink-regexp)
814 (define-key map "%R" 'dired-do-rename-regexp)
815 (define-key map "%S" 'dired-do-symlink-regexp)
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816 ;; Commands for marking and unmarking.
817 (define-key map "*" nil)
818 (define-key map "**" 'dired-mark-executables)
819 (define-key map "*/" 'dired-mark-directories)
820 (define-key map "*@" 'dired-mark-symlinks)
821 (define-key map "*%" 'dired-mark-files-regexp)
822 (define-key map "*c" 'dired-change-marks)
0609c998 823 (define-key map "*s" 'dired-mark-subdir-files)
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824 (define-key map "*m" 'dired-mark)
825 (define-key map "*u" 'dired-unmark)
826 (define-key map "*?" 'dired-unmark-all-files)
03059963 827 (define-key map "*!" 'dired-unmark-all-files-no-query)
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828 (define-key map "*\177" 'dired-unmark-backward)
829 (define-key map "*\C-n" 'dired-next-marked-file)
830 (define-key map "*\C-p" 'dired-prev-marked-file)
3e1fb00f 831 ;; Lower keys for commands not operating on all the marked files
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832 (define-key map "d" 'dired-flag-file-deletion)
833 (define-key map "e" 'dired-find-file)
834 (define-key map "f" 'dired-find-file)
835 (define-key map "\C-m" 'dired-advertised-find-file)
836 (define-key map "g" 'revert-buffer)
837 (define-key map "h" 'describe-mode)
838 (define-key map "i" 'dired-maybe-insert-subdir)
839 (define-key map "k" 'dired-do-kill-lines)
840 (define-key map "l" 'dired-do-redisplay)
841 (define-key map "m" 'dired-mark)
842 (define-key map "n" 'dired-next-line)
843 (define-key map "o" 'dired-find-file-other-window)
844 (define-key map "\C-o" 'dired-display-file)
845 (define-key map "p" 'dired-previous-line)
846 (define-key map "q" 'dired-quit)
847 (define-key map "s" 'dired-sort-toggle-or-edit)
848 (define-key map "u" 'dired-unmark)
849 (define-key map "v" 'dired-view-file)
850 (define-key map "x" 'dired-do-flagged-delete)
851 (define-key map "+" 'dired-create-directory)
852 ;; moving
853 (define-key map "<" 'dired-prev-dirline)
854 (define-key map ">" 'dired-next-dirline)
855 (define-key map "^" 'dired-up-directory)
856 (define-key map " " 'dired-next-line)
857 (define-key map "\C-n" 'dired-next-line)
858 (define-key map "\C-p" 'dired-previous-line)
859 (define-key map [down] 'dired-next-line)
860 (define-key map [up] 'dired-previous-line)
861 ;; hiding
862 (define-key map "$" 'dired-hide-subdir)
863 (define-key map "\M-$" 'dired-hide-all)
864 ;; misc
865 (define-key map "?" 'dired-summary)
866 (define-key map "\177" 'dired-unmark-backward)
867 (define-key map "\C-_" 'dired-undo)
868 (define-key map "\C-xu" 'dired-undo)
869
870 ;; Make menu bar items.
871
872 ;; Get rid of the Edit menu bar item to save space.
873 (define-key map [menu-bar edit] 'undefined)
874
875 (define-key map [menu-bar subdir]
876 (cons "Subdir" (make-sparse-keymap "Subdir")))
877
878 (define-key map [menu-bar subdir hide-all]
879 '("Hide All" . dired-hide-all))
880 (define-key map [menu-bar subdir hide-subdir]
881 '("Hide Subdir" . dired-hide-subdir))
882 (define-key map [menu-bar subdir tree-down]
883 '("Tree Down" . dired-tree-down))
884 (define-key map [menu-bar subdir tree-up]
885 '("Tree Up" . dired-tree-up))
886 (define-key map [menu-bar subdir up]
887 '("Up Directory" . dired-up-directory))
888 (define-key map [menu-bar subdir prev-subdir]
889 '("Prev Subdir" . dired-prev-subdir))
890 (define-key map [menu-bar subdir next-subdir]
891 '("Next Subdir" . dired-next-subdir))
892 (define-key map [menu-bar subdir prev-dirline]
893 '("Prev Dirline" . dired-prev-dirline))
894 (define-key map [menu-bar subdir next-dirline]
895 '("Next Dirline" . dired-next-dirline))
896 (define-key map [menu-bar subdir insert]
897 '("Insert This Subdir" . dired-maybe-insert-subdir))
898
899 (define-key map [menu-bar immediate]
900 (cons "Immediate" (make-sparse-keymap "Immediate")))
901
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902 (define-key map [menu-bar immediate revert-buffer]
903 '("Update Buffer" . revert-buffer))
904
905 (define-key map [menu-bar immediate dashes]
906 '("--"))
907
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908 (define-key map [menu-bar immediate backup-diff]
909 '("Compare with Backup" . dired-backup-diff))
910 (define-key map [menu-bar immediate diff]
911 '("Diff" . dired-diff))
912 (define-key map [menu-bar immediate view]
913 '("View This File" . dired-view-file))
914 (define-key map [menu-bar immediate display]
915 '("Display in Other Window" . dired-display-file))
916 (define-key map [menu-bar immediate find-file-other-window]
917 '("Find in Other Window" . dired-find-file-other-window))
918 (define-key map [menu-bar immediate find-file]
919 '("Find This File" . dired-find-file))
920 (define-key map [menu-bar immediate create-directory]
921 '("Create Directory..." . dired-create-directory))
922
923 (define-key map [menu-bar regexp]
924 (cons "Regexp" (make-sparse-keymap "Regexp")))
925
926 (define-key map [menu-bar regexp downcase]
927 '("Downcase" . dired-downcase))
928 (define-key map [menu-bar regexp upcase]
929 '("Upcase" . dired-upcase))
930 (define-key map [menu-bar regexp hardlink]
931 '("Hardlink..." . dired-do-hardlink-regexp))
932 (define-key map [menu-bar regexp symlink]
933 '("Symlink..." . dired-do-symlink-regexp))
934 (define-key map [menu-bar regexp rename]
935 '("Rename..." . dired-do-rename-regexp))
936 (define-key map [menu-bar regexp copy]
937 '("Copy..." . dired-do-copy-regexp))
938 (define-key map [menu-bar regexp flag]
939 '("Flag..." . dired-flag-files-regexp))
940 (define-key map [menu-bar regexp mark]
941 '("Mark..." . dired-mark-files-regexp))
942
943 (define-key map [menu-bar mark]
944 (cons "Mark" (make-sparse-keymap "Mark")))
945
946 (define-key map [menu-bar mark prev]
947 '("Previous Marked" . dired-prev-marked-file))
948 (define-key map [menu-bar mark next]
949 '("Next Marked" . dired-next-marked-file))
950 (define-key map [menu-bar mark marks]
951 '("Change Marks..." . dired-change-marks))
952 (define-key map [menu-bar mark unmark-all]
953 '("Unmark All" . dired-unmark-all-files-no-query))
954 (define-key map [menu-bar mark symlinks]
955 '("Mark Symlinks" . dired-mark-symlinks))
956 (define-key map [menu-bar mark directories]
957 '("Mark Directories" . dired-mark-directories))
958 (define-key map [menu-bar mark directory]
959 '("Mark Old Backups" . dired-clean-directory))
960 (define-key map [menu-bar mark executables]
961 '("Mark Executables" . dired-mark-executables))
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962 (define-key map [menu-bar mark garbage-files]
963 '("Flag Garbage Files" . dired-flag-garbage-files))
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964 (define-key map [menu-bar mark backup-files]
965 '("Flag Backup Files" . dired-flag-backup-files))
966 (define-key map [menu-bar mark auto-save-files]
967 '("Flag Auto-save Files" . dired-flag-auto-save-files))
968 (define-key map [menu-bar mark deletion]
969 '("Flag" . dired-flag-file-deletion))
970 (define-key map [menu-bar mark unmark]
971 '("Unmark" . dired-unmark))
972 (define-key map [menu-bar mark mark]
973 '("Mark" . dired-mark))
974
975 (define-key map [menu-bar operate]
976 (cons "Operate" (make-sparse-keymap "Operate")))
977
978 (define-key map [menu-bar operate query-replace]
979 '("Query Replace in Files..." . dired-do-query-replace))
980 (define-key map [menu-bar operate search]
981 '("Search Files..." . dired-do-search))
982 (define-key map [menu-bar operate chown]
983 '("Change Owner..." . dired-do-chown))
984 (define-key map [menu-bar operate chgrp]
985 '("Change Group..." . dired-do-chgrp))
986 (define-key map [menu-bar operate chmod]
987 '("Change Mode..." . dired-do-chmod))
988 (define-key map [menu-bar operate load]
989 '("Load" . dired-do-load))
990 (define-key map [menu-bar operate compile]
991 '("Byte-compile" . dired-do-byte-compile))
992 (define-key map [menu-bar operate compress]
993 '("Compress" . dired-do-compress))
994 (define-key map [menu-bar operate print]
995 '("Print" . dired-do-print))
996 (define-key map [menu-bar operate hardlink]
997 '("Hardlink to..." . dired-do-hardlink))
998 (define-key map [menu-bar operate symlink]
999 '("Symlink to..." . dired-do-symlink))
1000 (define-key map [menu-bar operate command]
1001 '("Shell Command..." . dired-do-shell-command))
1002 (define-key map [menu-bar operate delete]
1003 '("Delete" . dired-do-delete))
1004 (define-key map [menu-bar operate rename]
1005 '("Rename to..." . dired-do-rename))
1006 (define-key map [menu-bar operate copy]
1007 '("Copy to..." . dired-do-copy))
1008
1009 (setq dired-mode-map map)))
fc53efda 1010\f
84fc2cfa
ER
1011;; Dired mode is suitable only for specially formatted data.
1012(put 'dired-mode 'mode-class 'special)
1013
492d2437
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1014(defun dired-mode (&optional dirname switches)
1015 "\
1016Mode for \"editing\" directory listings.
1017In dired, you are \"editing\" a list of the files in a directory and
1018 \(optionally) its subdirectories, in the format of `ls -lR'.
1019 Each directory is a page: use \\[backward-page] and \\[forward-page] to move pagewise.
1020\"Editing\" means that you can run shell commands on files, visit,
1021 compress, load or byte-compile them, change their file attributes
1022 and insert subdirectories into the same buffer. You can \"mark\"
1023 files for later commands or \"flag\" them for deletion, either file
1024 by file or all files matching certain criteria.
1025You can move using the usual cursor motion commands.\\<dired-mode-map>
1026Letters no longer insert themselves. Digits are prefix arguments.
1027Instead, type \\[dired-flag-file-deletion] to flag a file for Deletion.
1028Type \\[dired-mark] to Mark a file or subdirectory for later commands.
1029 Most commands operate on the marked files and use the current file
1030 if no files are marked. Use a numeric prefix argument to operate on
1031 the next ARG (or previous -ARG if ARG<0) files, or just `1'
1032 to operate on the current file only. Prefix arguments override marks.
1033 Mark-using commands display a list of failures afterwards. Type \\[dired-summary]
1034 to see why something went wrong.
1035Type \\[dired-unmark] to Unmark a file or all files of a subdirectory.
1036Type \\[dired-unmark-backward] to back up one line and unflag.
1037Type \\[dired-do-flagged-delete] to eXecute the deletions requested.
1038Type \\[dired-advertised-find-file] to Find the current line's file
1039 (or dired it in another buffer, if it is a directory).
1040Type \\[dired-find-file-other-window] to find file or dired directory in Other window.
1041Type \\[dired-maybe-insert-subdir] to Insert a subdirectory in this buffer.
1042Type \\[dired-do-rename] to Rename a file or move the marked files to another directory.
1043Type \\[dired-do-copy] to Copy files.
1044Type \\[dired-sort-toggle-or-edit] to toggle sorting by name/date or change the `ls' switches.
1045Type \\[revert-buffer] to read all currently expanded directories again.
1046 This retains all marks and hides subdirs again that were hidden before.
1047SPC and DEL can be used to move down and up by lines.
1048
1049If dired ever gets confused, you can either type \\[revert-buffer] \
1050to read the
1051directories again, type \\[dired-do-redisplay] \
1052to relist a single or the marked files or a
1053subdirectory, or type \\[dired-build-subdir-alist] to parse the buffer
1054again for the directory tree.
1055
1056Customization variables (rename this buffer and type \\[describe-variable] on each line
1057for more info):
1058
1059 dired-listing-switches
1060 dired-trivial-filenames
1061 dired-shrink-to-fit
1062 dired-marker-char
1063 dired-del-marker
1064 dired-keep-marker-rename
1065 dired-keep-marker-copy
1066 dired-keep-marker-hardlink
1067 dired-keep-marker-symlink
1068
1069Hooks (use \\[describe-variable] to see their documentation):
1070
1071 dired-before-readin-hook
1072 dired-after-readin-hook
1073 dired-mode-hook
1074 dired-load-hook
1075
1076Keybindings:
84fc2cfa 1077\\{dired-mode-map}"
492d2437
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1078 ;; Not to be called interactively (e.g. dired-directory will be set
1079 ;; to default-directory, which is wrong with wildcards).
84fc2cfa 1080 (kill-all-local-variables)
84fc2cfa 1081 (use-local-map dired-mode-map)
492d2437
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1082 (dired-advertise) ; default-directory is already set
1083 (setq major-mode 'dired-mode
1084 mode-name "Dired"
3222085e 1085;; case-fold-search nil
492d2437
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1086 buffer-read-only t
1087 selective-display t ; for subdirectory hiding
1088 mode-line-buffer-identification '("Dired: %17b"))
1089 (set (make-local-variable 'revert-buffer-function)
1090 (function dired-revert))
1091 (set (make-local-variable 'page-delimiter)
1092 "\n\n")
1093 (set (make-local-variable 'dired-directory)
1094 (or dirname default-directory))
1095 ;; list-buffers uses this to display the dir being edited in this buffer.
1096 (set (make-local-variable 'list-buffers-directory)
474ac5bb 1097 (expand-file-name dired-directory))
492d2437
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1098 (set (make-local-variable 'dired-actual-switches)
1099 (or switches dired-listing-switches))
4481ae96 1100 (set (make-local-variable 'font-lock-defaults) '(dired-font-lock-keywords t))
492d2437 1101 (dired-sort-other dired-actual-switches t)
84fc2cfa
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1102 (run-hooks 'dired-mode-hook))
1103\f
eb8c3be9 1104;; Idiosyncratic dired commands that don't deal with marks.
84fc2cfa 1105
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1106(defun dired-quit ()
1107 "Bury the current dired buffer."
1108 (interactive)
1109 (bury-buffer))
84fc2cfa
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1110
1111(defun dired-summary ()
492d2437 1112 "Summarize basic Dired commands and show recent Dired errors."
84fc2cfa 1113 (interactive)
492d2437 1114 (dired-why)
84fc2cfa
ER
1115 ;>> this should check the key-bindings and use substitute-command-keys if non-standard
1116 (message
50f74744 1117 "d-elete, u-ndelete, x-punge, f-ind, o-ther window, R-ename, C-opy, h-elp"))
84fc2cfa 1118
492d2437
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1119(defun dired-undo ()
1120 "Undo in a dired buffer.
1121This doesn't recover lost files, it just undoes changes in the buffer itself.
1122You can use it to recover marks, killed lines or subdirs.
1123In the latter case, you have to do \\[dired-build-subdir-alist] to
1124parse the buffer again."
1125 (interactive)
1126 (let (buffer-read-only)
1127 (undo)))
84fc2cfa
ER
1128
1129(defun dired-next-line (arg)
1130 "Move down lines then position at filename.
1131Optional prefix ARG says how many lines to move; default is one line."
1132 (interactive "p")
1133 (next-line arg)
1134 (dired-move-to-filename))
1135
1136(defun dired-previous-line (arg)
1137 "Move up lines then position at filename.
1138Optional prefix ARG says how many lines to move; default is one line."
1139 (interactive "p")
1140 (previous-line arg)
1141 (dired-move-to-filename))
1142
492d2437
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1143(defun dired-next-dirline (arg &optional opoint)
1144 "Goto ARG'th next directory file line."
1145 (interactive "p")
1146 (or opoint (setq opoint (point)))
1147 (if (if (> arg 0)
1148 (re-search-forward dired-re-dir nil t arg)
1149 (beginning-of-line)
1150 (re-search-backward dired-re-dir nil t (- arg)))
1151 (dired-move-to-filename) ; user may type `i' or `f'
1152 (goto-char opoint)
1153 (error "No more subdirectories")))
1154
1155(defun dired-prev-dirline (arg)
1156 "Goto ARG'th previous directory file line."
1157 (interactive "p")
1158 (dired-next-dirline (- arg)))
1159
ac1ce341 1160(defun dired-up-directory (&optional other-window)
492d2437
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1161 "Run dired on parent directory of current directory.
1162Find the parent directory either in this buffer or another buffer.
1163Creates a buffer if necessary."
ac1ce341 1164 (interactive "P")
492d2437
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1165 (let* ((dir (dired-current-directory))
1166 (up (file-name-directory (directory-file-name dir))))
1167 (or (dired-goto-file (directory-file-name dir))
7b2469ae
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1168 ;; Only try dired-goto-subdir if buffer has more than one dir.
1169 (and (cdr dired-subdir-alist)
492d2437
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1170 (dired-goto-subdir up))
1171 (progn
ac1ce341
EN
1172 (if other-window
1173 (dired-other-window up)
1174 (dired up))
492d2437 1175 (dired-goto-file dir)))))
84fc2cfa 1176
dbcb9389
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1177;; Force `f' rather than `e' in the mode doc:
1178(defalias 'dired-advertised-find-file 'dired-find-file)
94fa4eb8 1179(defun dired-find-file (&optional coding-system)
84fc2cfa 1180 "In dired, visit the file or directory named on this line."
94fa4eb8 1181 (interactive "ZCoding-system: ")
c439687b
RS
1182 (let ((file-name (file-name-sans-versions (dired-get-filename) t)))
1183 (if (file-exists-p file-name)
94fa4eb8 1184 (find-file file-name coding-system)
c439687b 1185 (error "File no longer exists; type `g' to update Dired buffer"))))
84fc2cfa 1186
dbcb9389
RS
1187(defun dired-mouse-find-file-other-window (event)
1188 "In dired, visit the file or directory name you click on."
1189 (interactive "e")
1190 (let (file)
1191 (save-excursion
1192 (set-buffer (window-buffer (posn-window (event-end event))))
1193 (save-excursion
1194 (goto-char (posn-point (event-end event)))
1195 (setq file (dired-get-filename))))
1196 (select-window (posn-window (event-end event)))
1197 (find-file-other-window (file-name-sans-versions file t))))
1198
84fc2cfa 1199(defun dired-view-file ()
492d2437
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1200 "In dired, examine a file in view mode, returning to dired when done.
1201When file is a directory, show it in this buffer if it is inserted;
1202otherwise, display it in another buffer."
84fc2cfa
ER
1203 (interactive)
1204 (if (file-directory-p (dired-get-filename))
7b2469ae
RS
1205 (or (and (cdr dired-subdir-alist)
1206 (dired-goto-subdir (dired-get-filename)))
492d2437 1207 (dired (dired-get-filename)))
715984d3 1208 (view-file (dired-get-filename))))
84fc2cfa
ER
1209
1210(defun dired-find-file-other-window ()
1211 "In dired, visit this file or directory in another window."
1212 (interactive)
c3554e95 1213 (find-file-other-window (file-name-sans-versions (dired-get-filename) t)))
ab67260b
RS
1214
1215(defun dired-display-file ()
1216 "In dired, display this file or directory in another window."
1217 (interactive)
c3554e95
RS
1218 (let ((file (file-name-sans-versions (dired-get-filename) t)))
1219 (display-buffer (find-file-noselect file))))
492d2437
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1220\f
1221;;; Functions for extracting and manipulating file names in dired buffers.
84fc2cfa
ER
1222
1223(defun dired-get-filename (&optional localp no-error-if-not-filep)
1224 "In dired, return name of file mentioned on this line.
1225Value returned normally includes the directory name.
492d2437
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1226Optional arg LOCALP with value `no-dir' means don't include directory
1227 name in result. A value of t means construct name relative to
1228 `default-directory', which still may contain slashes if in a subdirectory.
1229Optional arg NO-ERROR-IF-NOT-FILEP means return nil if no filename on
1230 this line, otherwise an error occurs."
1231 (let (case-fold-search file p1 p2)
84fc2cfa 1232 (save-excursion
492d2437
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1233 (if (setq p1 (dired-move-to-filename (not no-error-if-not-filep)))
1234 (setq p2 (dired-move-to-end-of-filename no-error-if-not-filep))))
1235 ;; nil if no file on this line, but no-error-if-not-filep is t:
9888aa65
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1236 (if (setq file (and p1 p2 (buffer-substring p1 p2)))
1237 (progn
1238 ;; Get rid of the mouse-face property that file names have.
1239 (set-text-properties 0 (length file) nil file)
1240 ;; Unquote names quoted by ls or by dired-insert-directory.
1241 ;; Using read to unquote is much faster than substituting
1242 ;; \007 (4 chars) -> ^G (1 char) etc. in a lisp loop.
1243 (setq file
1244 (read
1245 (concat "\""
1246 ;; some ls -b don't escape quotes, argh!
1247 ;; This is not needed for GNU ls, though.
1248 (or (dired-string-replace-match
bc07e5cb 1249 "\\([^\\]\\|\\`\\)\"" file "\\1\\\\\"" nil t)
9888aa65
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1250 file)
1251 "\"")))))
492d2437
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1252 (if (eq localp 'no-dir)
1253 file
1254 (and file (concat (dired-current-directory localp) file)))))
1255
437fe5ae
RS
1256(defun dired-string-replace-match (regexp string newtext
1257 &optional literal global)
1258 "Replace first match of REGEXP in STRING with NEWTEXT.
1259If it does not match, nil is returned instead of the new string.
1260Optional arg LITERAL means to take NEWTEXT literally.
1261Optional arg GLOBAL means to replace all matches."
1262 (if global
856321e2
RS
1263 (let ((start 0))
1264 (while (string-match regexp string start)
1265 (let ((from-end (- (length string) (match-end 0))))
1266 (setq string (replace-match newtext t literal string))
1267 (setq start (- (length string) from-end))))
1268 string)
437fe5ae
RS
1269 (if (not (string-match regexp string 0))
1270 nil
856321e2 1271 (replace-match newtext t literal string))))
437fe5ae 1272
492d2437
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1273(defun dired-make-absolute (file &optional dir)
1274 ;;"Convert FILE (a pathname relative to DIR) to an absolute pathname."
1275 ;; We can't always use expand-file-name as this would get rid of `.'
1276 ;; or expand in / instead default-directory if DIR=="".
1277 ;; This should be good enough for ange-ftp, but might easily be
1278 ;; redefined (for VMS?).
1279 ;; It should be reasonably fast, though, as it is called in
1280 ;; dired-get-filename.
1281 (concat (or dir default-directory) file))
1282
827dc60d
RS
1283(defun dired-make-relative (file &optional dir ignore)
1284 "Convert FILE (an absolute file name) to a name relative to DIR.
1285If this is impossible, return FILE unchanged.
1286DIR must be a directory name, not a file name."
492d2437 1287 (or dir (setq dir default-directory))
7425bbff
RS
1288 ;; This case comes into play if default-directory is set to
1289 ;; use ~.
1290 (if (and (> (length dir) 0) (= (aref dir 0) ?~))
1291 (setq dir (expand-file-name dir)))
492d2437
RS
1292 (if (string-match (concat "^" (regexp-quote dir)) file)
1293 (substring file (match-end 0))
827dc60d
RS
1294;;; (or no-error
1295;;; (error "%s: not in directory tree growing at %s" file dir))
1296 file))
492d2437
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1297\f
1298;;; Functions for finding the file name in a dired buffer line.
1299
c4a7b2a4 1300(defvar dired-move-to-filename-regexp
f3636ea7
RS
1301 " [A-Za-z\xa0-\xff][A-Za-z\xa0-\xff][A-Za-z\xa0-\xff] [0-3 ][0-9]\
1302 [ 0-9][0-9][:0-9][0-9][ 0-9] "
1303 "Regular expression to match a month abbreviation followed date/time.")
9eabb7d5 1304
23e217f6
RS
1305(defvar dired-permission-flags-regexp
1306 "\\([^ ]\\)[-r][-w]\\([^ ]\\)[-r][-w]\\([^ ]\\)[-r][-w]\\([^ ]\\)"
1307 "Regular expression to match the permission flags in `ls -l'.")
1308
492d2437
RS
1309;; Move to first char of filename on this line.
1310;; Returns position (point) or nil if no filename on this line."
1311(defun dired-move-to-filename (&optional raise-error eol)
1312 ;; This is the UNIX version.
1313 (or eol (setq eol (progn (end-of-line) (point))))
1314 (beginning-of-line)
d90490d8
RS
1315 (if (re-search-forward dired-move-to-filename-regexp eol t)
1316 (goto-char (match-end 0))
1317 (if raise-error
1318 (error "No file on this line"))))
492d2437
RS
1319
1320(defun dired-move-to-end-of-filename (&optional no-error)
1321 ;; Assumes point is at beginning of filename,
1322 ;; thus the rwx bit re-search-backward below will succeed in *this*
1323 ;; line if at all. So, it should be called only after
1324 ;; (dired-move-to-filename t).
1325 ;; On failure, signals an error (with non-nil NO-ERROR just returns nil).
1326 ;; This is the UNIX version.
1327 (let (opoint file-type executable symlink hidden case-fold-search used-F eol)
1328 ;; case-fold-search is nil now, so we can test for capital F:
1329 (setq used-F (string-match "F" dired-actual-switches)
1330 opoint (point)
1331 eol (save-excursion (end-of-line) (point))
1332 hidden (and selective-display
1333 (save-excursion (search-forward "\r" eol t))))
1334 (if hidden
1335 nil
1336 (save-excursion;; Find out what kind of file this is:
1337 ;; Restrict perm bits to be non-blank,
1338 ;; otherwise this matches one char to early (looking backward):
1339 ;; "l---------" (some systems make symlinks that way)
1340 ;; "----------" (plain file with zero perms)
1341 (if (re-search-backward
23e217f6 1342 dired-permission-flags-regexp nil t)
492d2437
RS
1343 (setq file-type (char-after (match-beginning 1))
1344 symlink (eq file-type ?l)
1345 ;; Only with -F we need to know whether it's an executable
1346 executable (and
1347 used-F
1348 (string-match
1349 "[xst]";; execute bit set anywhere?
1350 (concat
1351 (buffer-substring (match-beginning 2)
1352 (match-end 2))
1353 (buffer-substring (match-beginning 3)
1354 (match-end 3))
1355 (buffer-substring (match-beginning 4)
1356 (match-end 4))))))
1357 (or no-error (error "No file on this line"))))
1358 ;; Move point to end of name:
1359 (if symlink
1360 (if (search-forward " ->" eol t)
1361 (progn
1362 (forward-char -3)
1363 (and used-F
1364 dired-ls-F-marks-symlinks
1365 (eq (preceding-char) ?@);; did ls really mark the link?
1366 (forward-char -1))))
1367 (goto-char eol);; else not a symbolic link
1368 ;; ls -lF marks dirs, sockets and executables with exactly one
1369 ;; trailing character. (Executable bits on symlinks ain't mean
1370 ;; a thing, even to ls, but we know it's not a symlink.)
1371 (and used-F
1372 (or (memq file-type '(?d ?s))
1373 executable)
1374 (forward-char -1))))
1375 (or no-error
1376 (not (eq opoint (point)))
1377 (error (if hidden
1378 (substitute-command-keys
1379 "File line is hidden, type \\[dired-hide-subdir] to unhide")
1380 "No file on this line")))
1381 (if (eq opoint (point))
1382 nil
1383 (point))))
1384
1385\f
1386;; Keeping Dired buffers in sync with the filesystem and with each other
1387
1388(defvar dired-buffers nil
1389 ;; Enlarged by dired-advertise
1390 ;; Queried by function dired-buffers-for-dir. When this detects a
1391 ;; killed buffer, it is removed from this list.
38819778 1392 "Alist of expanded directories and their associated dired buffers.")
492d2437
RS
1393
1394(defun dired-buffers-for-dir (dir)
1395;; Return a list of buffers that dired DIR (top level or in-situ subdir).
1396;; The list is in reverse order of buffer creation, most recent last.
1397;; As a side effect, killed dired buffers for DIR are removed from
1398;; dired-buffers.
1399 (setq dir (file-name-as-directory dir))
38819778 1400 (let ((alist dired-buffers) result elt buf)
492d2437 1401 (while alist
38819778
RS
1402 (setq elt (car alist)
1403 buf (cdr elt))
1404 (if (buffer-name buf)
1405 (if (dired-in-this-tree dir (car elt))
1406 (if (assoc dir (save-excursion
1407 (set-buffer buf)
1408 dired-subdir-alist))
1409 (setq result (cons buf result))))
1410 ;; else buffer is killed - clean up:
1411 (setq dired-buffers (delq elt dired-buffers)))
492d2437
RS
1412 (setq alist (cdr alist)))
1413 result))
1414
1415(defun dired-advertise ()
1416 ;;"Advertise in variable `dired-buffers' that we dired `default-directory'."
1417 ;; With wildcards we actually advertise too much.
38819778
RS
1418 (let ((expanded-default (expand-file-name default-directory)))
1419 (if (memq (current-buffer) (dired-buffers-for-dir expanded-default))
1420 t ; we have already advertised ourselves
1421 (setq dired-buffers
1422 (cons (cons expanded-default (current-buffer))
1423 dired-buffers)))))
492d2437
RS
1424
1425(defun dired-unadvertise (dir)
1426 ;; Remove DIR from the buffer alist in variable dired-buffers.
1427 ;; This has the effect of removing any buffer whose main directory is DIR.
1428 ;; It does not affect buffers in which DIR is a subdir.
1429 ;; Removing is also done as a side-effect in dired-buffer-for-dir.
1430 (setq dired-buffers
38819778 1431 (delq (assoc (expand-file-name dir) dired-buffers) dired-buffers)))
492d2437
RS
1432\f
1433;; Tree Dired
1434
1435;;; utility functions
1436
1437(defun dired-in-this-tree (file dir)
1438 ;;"Is FILE part of the directory tree starting at DIR?"
1439 (let (case-fold-search)
38819778 1440 (string-match (concat "^" (regexp-quote dir)) file)))
492d2437
RS
1441
1442(defun dired-normalize-subdir (dir)
1443 ;; Prepend default-directory to DIR if relative path name.
1444 ;; dired-get-filename must be able to make a valid filename from a
1445 ;; file and its directory DIR.
1446 (file-name-as-directory
1447 (if (file-name-absolute-p dir)
1448 dir
1449 (expand-file-name dir default-directory))))
1450
1451(defun dired-get-subdir ()
1452 ;;"Return the subdir name on this line, or nil if not on a headerline."
1453 ;; Look up in the alist whether this is a headerline.
1454 (save-excursion
1455 (let ((cur-dir (dired-current-directory)))
1456 (beginning-of-line) ; alist stores b-o-l positions
1457 (and (zerop (- (point)
1458 (dired-get-subdir-min (assoc cur-dir
1459 dired-subdir-alist))))
1460 cur-dir))))
1461
1462;(defun dired-get-subdir-min (elt)
1463; (cdr elt))
1464;; can't use macro, must be redefinable for other alist format in dired-nstd.
62f61df0 1465(defalias 'dired-get-subdir-min 'cdr)
492d2437
RS
1466
1467(defun dired-get-subdir-max (elt)
84fc2cfa 1468 (save-excursion
492d2437
RS
1469 (goto-char (dired-get-subdir-min elt))
1470 (dired-subdir-max)))
1471
1472(defun dired-clear-alist ()
1473 (while dired-subdir-alist
1474 (set-marker (dired-get-subdir-min (car dired-subdir-alist)) nil)
1475 (setq dired-subdir-alist (cdr dired-subdir-alist))))
1476
c9d59fc2
RS
1477(defun dired-subdir-index (dir)
1478 ;; Return an index into alist for use with nth
1479 ;; for the sake of subdir moving commands.
1480 (let (found (index 0) (alist dired-subdir-alist))
1481 (while alist
1482 (if (string= dir (car (car alist)))
1483 (setq alist nil found t)
1484 (setq alist (cdr alist) index (1+ index))))
1485 (if found index nil)))
1486
1487(defun dired-next-subdir (arg &optional no-error-if-not-found no-skip)
1488 "Go to next subdirectory, regardless of level."
1489 ;; Use 0 arg to go to this directory's header line.
1490 ;; NO-SKIP prevents moving to end of header line, returning whatever
1491 ;; position was found in dired-subdir-alist.
1492 (interactive "p")
1493 (let ((this-dir (dired-current-directory))
1494 pos index)
1495 ;; nth with negative arg does not return nil but the first element
1496 (setq index (- (dired-subdir-index this-dir) arg))
1497 (setq pos (if (>= index 0)
1498 (dired-get-subdir-min (nth index dired-subdir-alist))))
1499 (if pos
1500 (progn
1501 (goto-char pos)
1502 (or no-skip (skip-chars-forward "^\n\r"))
1503 (point))
1504 (if no-error-if-not-found
1505 nil ; return nil if not found
1506 (error "%s directory" (if (> arg 0) "Last" "First"))))))
1507
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1508(defun dired-build-subdir-alist ()
1509 "Build `dired-subdir-alist' by parsing the buffer.
1510Returns the new value of the alist."
1511 (interactive)
1512 (dired-clear-alist)
1513 (save-excursion
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1514 (let ((count 0)
1515 (buffer-read-only nil)
1516 new-dir-name)
84fc2cfa 1517 (goto-char (point-min))
492d2437 1518 (setq dired-subdir-alist nil)
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1519 (while (and (re-search-forward dired-subdir-regexp nil t)
1520 ;; Avoid taking a file name ending in a colon
1521 ;; as a subdir name.
1522 (not (save-excursion
1523 (goto-char (match-beginning 0))
1524 (beginning-of-line)
1525 (forward-char 2)
46680faf 1526 (save-match-data (looking-at dired-re-perms)))))
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1527 (save-excursion
1528 (goto-char (match-beginning 1))
1529 (setq new-dir-name
1530 (expand-file-name (buffer-substring (point) (match-end 1))))
1531 (delete-region (point) (match-end 1))
1532 (insert new-dir-name))
492d2437 1533 (setq count (1+ count))
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1534 (dired-alist-add-1 new-dir-name
1535 ;; Place a sub directory boundary between lines.
1536 (save-excursion
1537 (goto-char (match-beginning 0))
1538 (beginning-of-line)
1539 (point-marker))))
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1540 (if (> count 1)
1541 (message "Buffer includes %d directories" count))
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1542 ;; We don't need to sort it because it is in buffer order per
1543 ;; constructionem. Return new alist:
1544 dired-subdir-alist)))
1545
1546(defun dired-alist-add-1 (dir new-marker)
1547 ;; Add new DIR at NEW-MARKER. Don't sort.
1548 (setq dired-subdir-alist
1549 (cons (cons (dired-normalize-subdir dir) new-marker)
1550 dired-subdir-alist)))
1551
1552(defun dired-goto-next-nontrivial-file ()
1553 ;; Position point on first nontrivial file after point.
1554 (dired-goto-next-file);; so there is a file to compare with
1555 (if (stringp dired-trivial-filenames)
1556 (while (and (not (eobp))
1557 (string-match dired-trivial-filenames
1558 (file-name-nondirectory
1559 (or (dired-get-filename nil t) ""))))
1560 (forward-line 1)
1561 (dired-move-to-filename))))
1562
1563(defun dired-goto-next-file ()
1564 (let ((max (1- (dired-subdir-max))))
1565 (while (and (not (dired-move-to-filename)) (< (point) max))
1566 (forward-line 1))))
1567
1568(defun dired-goto-file (file)
1569 "Go to file line of FILE in this dired buffer."
1570 ;; Return value of point on success, else nil.
1571 ;; FILE must be an absolute pathname.
1572 ;; Loses if FILE contains control chars like "\007" for which ls
1573 ;; either inserts "?" or "\\007" into the buffer, so we won't find
1574 ;; it in the buffer.
1575 (interactive
1576 (prog1 ; let push-mark display its message
1577 (list (expand-file-name
1578 (read-file-name "Goto file: "
1579 (dired-current-directory))))
1580 (push-mark)))
1581 (setq file (directory-file-name file)) ; does no harm if no directory
1582 (let (found case-fold-search dir)
1583 (setq dir (or (file-name-directory file)
1584 (error "Need absolute pathname for %s" file)))
1585 (save-excursion
1586 ;; The hair here is to get the result of dired-goto-subdir
1587 ;; without really calling it if we don't have any subdirs.
233993a3 1588 (if (if (string= dir (expand-file-name default-directory))
492d2437 1589 (goto-char (point-min))
7b2469ae 1590 (and (cdr dired-subdir-alist)
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1591 (dired-goto-subdir dir)))
1592 (let ((base (file-name-nondirectory file))
1593 (boundary (dired-subdir-max)))
1594 (while (and (not found)
1595 ;; filenames are preceded by SPC, this makes
1596 ;; the search faster (e.g. for the filename "-"!).
1597 (search-forward (concat " " base) boundary 'move))
1598 ;; Match could have BASE just as initial substring or
1599 ;; or in permission bits or date or
1600 ;; not be a proper filename at all:
1601 (if (equal base (dired-get-filename 'no-dir t))
1602 ;; Must move to filename since an (actually
1603 ;; correct) match could have been elsewhere on the
1604 ;; ;; line (e.g. "-" would match somewhere in the
1605 ;; permission bits).
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1606 (setq found (dired-move-to-filename))
1607 ;; If this isn't the right line, move forward to avoid
1608 ;; trying this line again.
1609 (forward-line 1))))))
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1610 (and found
1611 ;; return value of point (i.e., FOUND):
1612 (goto-char found))))
1613
1614(defun dired-initial-position (dirname)
1615 ;; Where point should go in a new listing of DIRNAME.
1616 ;; Point assumed at beginning of new subdir line.
1617 ;; You may redefine this function as you wish, e.g. like in dired-x.el.
1618 (end-of-line)
1619 (if dired-trivial-filenames (dired-goto-next-nontrivial-file)))
1620\f
1621;; These are hooks which make tree dired work.
1622;; They are in this file because other parts of dired need to call them.
1623;; But they don't call the rest of tree dired unless there are subdirs loaded.
1624
1625;; This function is called for each retrieved filename.
1626;; It could stand to be faster, though it's mostly function call
1627;; overhead. Avoiding the function call seems to save about 10% in
1628;; dired-get-filename. Make it a defsubst?
1629(defun dired-current-directory (&optional localp)
1630 "Return the name of the subdirectory to which this line belongs.
1631This returns a string with trailing slash, like `default-directory'.
1632Optional argument means return a file name relative to `default-directory'."
1633 (let ((here (point))
1634 (alist (or dired-subdir-alist
1635 ;; probably because called in a non-dired buffer
1636 (error "No subdir-alist in %s" (current-buffer))))
1637 elt dir)
1638 (while alist
1639 (setq elt (car alist)
1640 dir (car elt)
1641 ;; use `<=' (not `<') as subdir line is part of subdir
1642 alist (if (<= (dired-get-subdir-min elt) here)
1643 nil ; found
1644 (cdr alist))))
1645 (if localp
1646 (dired-make-relative dir default-directory)
1647 dir)))
1648
1649;; Subdirs start at the beginning of their header lines and end just
1650;; before the beginning of the next header line (or end of buffer).
1651
1652(defun dired-subdir-max ()
1653 (save-excursion
7b2469ae 1654 (if (or (null (cdr dired-subdir-alist)) (not (dired-next-subdir 1 t t)))
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1655 (point-max)
1656 (point))))
1657\f
1658;; Deleting files
1659
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1660(defun dired-do-flagged-delete (&optional nomessage)
1661 "In dired, delete the files flagged for deletion.
1662If NOMESSAGE is non-nil, we don't display any message
1663if there are no flagged files."
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1664 (interactive)
1665 (let* ((dired-marker-char dired-del-marker)
1666 (regexp (dired-marker-regexp))
1667 case-fold-search)
1668 (if (save-excursion (goto-char (point-min))
1669 (re-search-forward regexp nil t))
1670 (dired-internal-do-deletions
1671 ;; this can't move point since ARG is nil
1672 (dired-map-over-marks (cons (dired-get-filename) (point))
1673 nil)
1674 nil)
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1675 (or nomessage
1676 (message "(No deletions requested)")))))
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1677
1678(defun dired-do-delete (&optional arg)
1679 "Delete all marked (or next ARG) files."
1680 ;; This is more consistent with the file marking feature than
1681 ;; dired-do-flagged-delete.
1682 (interactive "P")
1683 (dired-internal-do-deletions
1684 ;; this may move point if ARG is an integer
1685 (dired-map-over-marks (cons (dired-get-filename) (point))
1686 arg)
1687 arg))
1688
1689(defvar dired-deletion-confirmer 'yes-or-no-p) ; or y-or-n-p?
1690
1691(defun dired-internal-do-deletions (l arg)
1692 ;; L is an alist of files to delete, with their buffer positions.
1693 ;; ARG is the prefix arg.
1694 ;; Filenames are absolute (VMS needs this for logical search paths).
1695 ;; (car L) *must* be the *last* (bottommost) file in the dired buffer.
1696 ;; That way as changes are made in the buffer they do not shift the
1697 ;; lines still to be changed, so the (point) values in L stay valid.
1698 ;; Also, for subdirs in natural order, a subdir's files are deleted
1699 ;; before the subdir itself - the other way around would not work.
1700 (let ((files (mapcar (function car) l))
1701 (count (length l))
1702 (succ 0))
1703 ;; canonicalize file list for pop up
1704 (setq files (nreverse (mapcar (function dired-make-relative) files)))
1705 (if (dired-mark-pop-up
1706 " *Deletions*" 'delete files dired-deletion-confirmer
1707 (format "Delete %s " (dired-mark-prompt arg files)))
84fc2cfa 1708 (save-excursion
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1709 (let (failures);; files better be in reverse order for this loop!
1710 (while l
1711 (goto-char (cdr (car l)))
1712 (let (buffer-read-only)
1713 (condition-case err
1714 (let ((fn (car (car l))))
1715 ;; This test is equivalent to
1716 ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
1717 ;; but more efficient
1718 (if (eq t (car (file-attributes fn)))
ab67260b 1719 (delete-directory fn)
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1720 (delete-file fn))
1721 ;; if we get here, removing worked
1722 (setq succ (1+ succ))
1723 (message "%s of %s deletions" succ count)
1724 (delete-region (progn (beginning-of-line) (point))
1725 (progn (forward-line 1) (point)))
1726 (dired-clean-up-after-deletion fn))
1727 (error;; catch errors from failed deletions
1728 (dired-log "%s\n" err)
1729 (setq failures (cons (car (car l)) failures)))))
1730 (setq l (cdr l)))
1731 (if (not failures)
1732 (message "%d deletion%s done" count (dired-plural-s count))
1733 (dired-log-summary
1734 (format "%d of %d deletion%s failed"
1735 (length failures) count
1736 (dired-plural-s count))
1737 failures))))
1738 (message "(No deletions performed)")))
1739 (dired-move-to-filename))
1740
1741;; This is a separate function for the sake of dired-x.el.
1742(defun dired-clean-up-after-deletion (fn)
1743 ;; Clean up after a deleted file or directory FN.
7b2469ae
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1744 (save-excursion (and (cdr dired-subdir-alist)
1745 (dired-goto-subdir fn)
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1746 (dired-kill-subdir))))
1747\f
1748;; Confirmation
1749
1750(defun dired-marker-regexp ()
1751 (concat "^" (regexp-quote (char-to-string dired-marker-char))))
1752
1753(defun dired-plural-s (count)
1754 (if (= 1 count) "" "s"))
1755
1756(defun dired-mark-prompt (arg files)
1757 ;; Return a string for use in a prompt, either the current file
1758 ;; name, or the marker and a count of marked files.
1759 (let ((count (length files)))
1760 (if (= count 1)
1761 (car files)
1762 ;; more than 1 file:
1763 (if (integerp arg)
1764 ;; abs(arg) = count
1765 ;; Perhaps this is nicer, but it also takes more screen space:
1766 ;;(format "[%s %d files]" (if (> arg 0) "next" "previous")
1767 ;; count)
1768 (format "[next %d files]" arg)
1769 (format "%c [%d files]" dired-marker-char count)))))
1770
1771(defun dired-pop-to-buffer (buf)
1772 ;; Pop up buffer BUF.
1773 ;; If dired-shrink-to-fit is t, make its window fit its contents.
1774 (if (not dired-shrink-to-fit)
1775 (pop-to-buffer (get-buffer-create buf))
1776 ;; let window shrink to fit:
1777 (let ((window (selected-window))
1778 target-lines w2)
1779 (cond ;; if split-window-threshold is enabled, use the largest window
1780 ((and (> (window-height (setq w2 (get-largest-window)))
1781 split-height-threshold)
f98955ea 1782 (= (frame-width) (window-width w2)))
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1783 (setq window w2))
1784 ;; if the least-recently-used window is big enough, use it
1785 ((and (> (window-height (setq w2 (get-lru-window)))
1786 (* 2 window-min-height))
f98955ea 1787 (= (frame-width) (window-width w2)))
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1788 (setq window w2)))
1789 (save-excursion
1790 (set-buffer buf)
1791 (goto-char (point-max))
1792 (skip-chars-backward "\n\r\t ")
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1793 (setq target-lines (count-lines (point-min) (point)))
1794 ;; Don't forget to count the last line.
1795 (if (not (bolp))
1796 (setq target-lines (1+ target-lines))))
492d2437 1797 (if (<= (window-height window) (* 2 window-min-height))
f98955ea 1798 ;; At this point, every window on the frame is too small to split.
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1799 (setq w2 (display-buffer buf))
1800 (setq w2 (split-window window
1801 (max window-min-height
1802 (- (window-height window)
1803 (1+ (max window-min-height target-lines)))))))
1804 (set-window-buffer w2 buf)
1805 (if (< (1- (window-height w2)) target-lines)
1806 (progn
1807 (select-window w2)
1808 (enlarge-window (- target-lines (1- (window-height w2))))))
1809 (set-window-start w2 1)
1810 )))
1811
1812(defvar dired-no-confirm nil
1813;; "If non-nil, list of symbols for commands dired should not confirm.
1814;;It can be a sublist of
1815;;
1816;; '(byte-compile chgrp chmod chown compress copy delete hardlink load
1817;; move print shell symlink uncompress)"
1818 )
1819
1820(defun dired-mark-pop-up (bufname op-symbol files function &rest args)
1821 ;;"Args BUFNAME OP-SYMBOL FILES FUNCTION &rest ARGS.
1822 ;;Return FUNCTION's result on ARGS after popping up a window (in a buffer
1823 ;;named BUFNAME, nil gives \" *Marked Files*\") showing the marked
1824 ;;files. Uses function `dired-pop-to-buffer' to do that.
1825 ;; FUNCTION should not manipulate files.
1826 ;; It should only read input (an argument or confirmation).
1827 ;;The window is not shown if there is just one file or
1828 ;; OP-SYMBOL is a member of the list in `dired-no-confirm'.
1829 ;;FILES is the list of marked files."
1830 (or bufname (setq bufname " *Marked Files*"))
1831 (if (or (memq op-symbol dired-no-confirm)
1832 (= (length files) 1))
1833 (apply function args)
1834 (save-excursion
1835 (set-buffer (get-buffer-create bufname))
1836 (erase-buffer)
a07e7c4a
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1837 (dired-format-columns-of-files files)
1838 (remove-text-properties (point-min) (point-max) '(mouse-face)))
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1839 (save-window-excursion
1840 (dired-pop-to-buffer bufname)
1841 (apply function args))))
1842
1843(defun dired-format-columns-of-files (files)
1844 ;; Files should be in forward order for this loop.
1845 ;; i.e., (car files) = first file in buffer.
1846 ;; Returns the number of lines used.
1847 (let* ((maxlen (+ 2 (apply 'max (mapcar 'length files))))
1848 (width (- (window-width (selected-window)) 2))
1849 (columns (max 1 (/ width maxlen)))
1850 (nfiles (length files))
1851 (rows (+ (/ nfiles columns)
1852 (if (zerop (% nfiles columns)) 0 1)))
1853 (i 0)
1854 (j 0))
1855 (setq files (nconc (copy-sequence files) ; fill up with empty fns
1856 (make-list (- (* columns rows) nfiles) "")))
1857 (setcdr (nthcdr (1- (length files)) files) files) ; make circular
1858 (while (< j rows)
1859 (while (< i columns)
1860 (indent-to (* i maxlen))
1861 (insert (car files))
1862 (setq files (nthcdr rows files)
1863 i (1+ i)))
1864 (insert "\n")
1865 (setq i 0
1866 j (1+ j)
1867 files (cdr files)))
1868 rows))
1869\f
1870;; Commands to mark or flag file(s) at or near current line.
1871
1872(defun dired-repeat-over-lines (arg function)
1873 ;; This version skips non-file lines.
cfe89c4f 1874 (let ((pos (make-marker)))
492d2437 1875 (beginning-of-line)
cfe89c4f
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1876 (while (and (> arg 0) (not (eobp)))
1877 (setq arg (1- arg))
1878 (beginning-of-line)
1879 (while (and (not (eobp)) (dired-between-files)) (forward-line 1))
1880 (save-excursion
1881 (forward-line 1)
1882 (move-marker pos (1+ (point))))
1883 (save-excursion (funcall function))
1884 ;; Advance to the next line--actually, to the line that *was* next.
1885 ;; (If FUNCTION inserted some new lines in between, skip them.)
1886 (goto-char pos))
1887 (while (and (< arg 0) (not (bobp)))
1888 (setq arg (1+ arg))
1889 (forward-line -1)
1890 (while (and (not (bobp)) (dired-between-files)) (forward-line -1))
1891 (beginning-of-line)
1892 (save-excursion (funcall function)))
1893 (move-marker pos nil)
1894 (dired-move-to-filename)))
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1895
1896(defun dired-between-files ()
1897 ;; Point must be at beginning of line
1898 ;; Should be equivalent to (save-excursion (not (dired-move-to-filename)))
1899 ;; but is about 1.5..2.0 times as fast. (Actually that's not worth it)
1900 (or (looking-at "^$\\|^. *$\\|^. total\\|^. wildcard")
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1901 (and (looking-at dired-subdir-regexp)
1902 (save-excursion (not (dired-move-to-filename))))))
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1903
1904(defun dired-next-marked-file (arg &optional wrap opoint)
1905 "Move to the next marked file, wrapping around the end of the buffer."
1906 (interactive "p\np")
1907 (or opoint (setq opoint (point)));; return to where interactively started
1908 (if (if (> arg 0)
1909 (re-search-forward dired-re-mark nil t arg)
1910 (beginning-of-line)
1911 (re-search-backward dired-re-mark nil t (- arg)))
1912 (dired-move-to-filename)
1913 (if (null wrap)
1914 (progn
1915 (goto-char opoint)
1916 (error "No next marked file"))
1917 (message "(Wraparound for next marked file)")
1918 (goto-char (if (> arg 0) (point-min) (point-max)))
1919 (dired-next-marked-file arg nil opoint))))
1920
1921(defun dired-prev-marked-file (arg &optional wrap)
1922 "Move to the previous marked file, wrapping around the end of the buffer."
1923 (interactive "p\np")
1924 (dired-next-marked-file (- arg) wrap))
1925
1926(defun dired-file-marker (file)
1927 ;; Return FILE's marker, or nil if unmarked.
1928 (save-excursion
1929 (and (dired-goto-file file)
1930 (progn
1931 (beginning-of-line)
1932 (if (not (equal ?\040 (following-char)))
1933 (following-char))))))
1934
1935(defun dired-mark-files-in-region (start end)
1936 (let (buffer-read-only)
1937 (if (> start end)
1938 (error "start > end"))
1939 (goto-char start) ; assumed at beginning of line
1940 (while (< (point) end)
1941 ;; Skip subdir line and following garbage like the `total' line:
1942 (while (and (< (point) end) (dired-between-files))
1943 (forward-line 1))
1944 (if (and (not (looking-at dired-re-dot))
1945 (dired-get-filename nil t))
1946 (progn
1947 (delete-char 1)
1948 (insert dired-marker-char)))
1949 (forward-line 1))))
1950
1951(defun dired-mark (arg)
1952 "Mark the current (or next ARG) files.
1953If on a subdir headerline, mark all its files except `.' and `..'.
1954
1955Use \\[dired-unmark-all-files] to remove all marks
1956and \\[dired-unmark] on a subdir to remove the marks in
1957this subdir."
1958 (interactive "P")
277568f2 1959 (if (dired-get-subdir)
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1960 (save-excursion (dired-mark-subdir-files))
1961 (let (buffer-read-only)
1962 (dired-repeat-over-lines
52041219 1963 (prefix-numeric-value arg)
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1964 (function (lambda () (delete-char 1) (insert dired-marker-char)))))))
1965
1966(defun dired-unmark (arg)
1967 "Unmark the current (or next ARG) files.
1968If looking at a subdir, unmark all its files except `.' and `..'."
1969 (interactive "P")
1970 (let ((dired-marker-char ?\040))
1971 (dired-mark arg)))
1972
1973(defun dired-flag-file-deletion (arg)
1974 "In dired, flag the current line's file for deletion.
1975With prefix arg, repeat over several lines.
1976
1977If on a subdir headerline, mark all its files except `.' and `..'."
1978 (interactive "P")
1979 (let ((dired-marker-char dired-del-marker))
1980 (dired-mark arg)))
1981
1982(defun dired-unmark-backward (arg)
1983 "In dired, move up lines and remove deletion flag there.
1984Optional prefix ARG says how many lines to unflag; default is one line."
1985 (interactive "p")
1986 (dired-unmark (- arg)))
84fc2cfa 1987\f
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1988;;; Commands to mark or flag files based on their characteristics or names.
1989
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1990(defvar dired-regexp-history nil
1991 "History list of regular expressions used in Dired commands.")
1992
1993(defun dired-read-regexp (prompt)
1994 (read-from-minibuffer prompt nil nil nil 'dired-regexp-history))
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1995
1996(defun dired-mark-files-regexp (regexp &optional marker-char)
1997 "Mark all files matching REGEXP for use in later commands.
1998A prefix argument means to unmark them instead.
1999`.' and `..' are never marked.
2000
2001REGEXP is an Emacs regexp, not a shell wildcard. Thus, use `\\.o$' for
2002object files--just `.o' will mark more than you might think."
2003 (interactive
2004 (list (dired-read-regexp (concat (if current-prefix-arg "Unmark" "Mark")
2005 " files (regexp): "))
2006 (if current-prefix-arg ?\040)))
2007 (let ((dired-marker-char (or marker-char dired-marker-char)))
2008 (dired-mark-if
2009 (and (not (looking-at dired-re-dot))
2010 (not (eolp)) ; empty line
2011 (let ((fn (dired-get-filename nil t)))
2012 (and fn (string-match regexp (file-name-nondirectory fn)))))
2013 "matching file")))
2014
2015(defun dired-flag-files-regexp (regexp)
2016 "In dired, flag all files containing the specified REGEXP for deletion.
2017The match is against the non-directory part of the filename. Use `^'
2018 and `$' to anchor matches. Exclude subdirs by hiding them.
2019`.' and `..' are never flagged."
2020 (interactive (list (dired-read-regexp "Flag for deletion (regexp): ")))
2021 (dired-mark-files-regexp regexp dired-del-marker))
2022
2023(defun dired-mark-symlinks (unflag-p)
2024 "Mark all symbolic links.
2025With prefix argument, unflag all those files."
2026 (interactive "P")
2027 (let ((dired-marker-char (if unflag-p ?\040 dired-marker-char)))
2028 (dired-mark-if (looking-at dired-re-sym) "symbolic link")))
2029
2030(defun dired-mark-directories (unflag-p)
2031 "Mark all directory file lines except `.' and `..'.
2032With prefix argument, unflag all those files."
2033 (interactive "P")
2034 (let ((dired-marker-char (if unflag-p ?\040 dired-marker-char)))
2035 (dired-mark-if (and (looking-at dired-re-dir)
2036 (not (looking-at dired-re-dot)))
2037 "directory file")))
2038
2039(defun dired-mark-executables (unflag-p)
2040 "Mark all executable files.
2041With prefix argument, unflag all those files."
2042 (interactive "P")
2043 (let ((dired-marker-char (if unflag-p ?\040 dired-marker-char)))
2044 (dired-mark-if (looking-at dired-re-exe) "executable file")))
2045
2046;; dired-x.el has a dired-mark-sexp interactive command: mark
2047;; files for which PREDICATE returns non-nil.
2048
2049(defun dired-flag-auto-save-files (&optional unflag-p)
84fc2cfa
ER
2050 "Flag for deletion files whose names suggest they are auto save files.
2051A prefix argument says to unflag those files instead."
2052 (interactive "P")
492d2437
RS
2053 (let ((dired-marker-char (if unflag-p ?\040 dired-del-marker)))
2054 (dired-mark-if
2a838614 2055 ;; It is less than general to check for # here,
a91526b9
RS
2056 ;; but it's the only way this runs fast enough.
2057 (and (save-excursion (end-of-line)
536ae2dd
RS
2058 (or
2059 (eq (preceding-char) ?#)
2060 ;; Handle executables in case of -F option.
2061 ;; We need not worry about the other kinds
2062 ;; of markings that -F makes, since they won't
2063 ;; appear on real auto-save files.
2064 (if (eq (preceding-char) ?*)
2065 (progn
2066 (forward-char -1)
2067 (eq (preceding-char) ?#)))))
a91526b9
RS
2068 (not (looking-at dired-re-dir))
2069 (let ((fn (dired-get-filename t t)))
2070 (if fn (auto-save-file-name-p
2071 (file-name-nondirectory fn)))))
2072 "auto save file")))
492d2437 2073
84d3f6e8
RS
2074(defvar dired-garbage-files-regexp
2075 "\\.log$\\|\\.toc$\\|.dvi$|\\.bak$\\|\\.orig$\\|\\.rej$"
2076 "*Regular expression to match \"garbage\" files for `dired-flag-garbage-files'.")
2077
2078(defun dired-flag-garbage-files ()
2079 (interactive)
2080 "Flag for deletion all files that match `dired-garbage-files-regexp'."
2081 (dired-flag-files-regexp dired-garbage-files-regexp))
2082
492d2437
RS
2083(defun dired-flag-backup-files (&optional unflag-p)
2084 "Flag all backup files (names ending with `~') for deletion.
2085With prefix argument, unflag these files."
2086 (interactive "P")
fdee13ec 2087 (let ((dired-marker-char (if unflag-p ?\ dired-del-marker)))
492d2437 2088 (dired-mark-if
f13101e9
KH
2089 ;; Don't call backup-file-name-p unless the last character looks like
2090 ;; it might be the end of a backup file name. This isn't very general,
a91526b9
RS
2091 ;; but it's the only way this runs fast enough.
2092 (and (save-excursion (end-of-line)
f13101e9
KH
2093 ;; Handle executables in case of -F option.
2094 ;; We need not worry about the other kinds
2095 ;; of markings that -F makes, since they won't
2096 ;; appear on real backup files.
2097 (if (eq (preceding-char) ?*)
2098 (forward-char -1))
fdee13ec 2099 (eq (preceding-char) ?~))
a91526b9 2100 (not (looking-at dired-re-dir))
492d2437
RS
2101 (let ((fn (dired-get-filename t t)))
2102 (if fn (backup-file-name-p fn))))
2103 "backup file")))
2104
6482fcac
RS
2105(defun dired-change-marks (&optional old new)
2106 "Change all OLD marks to NEW marks.
2107OLD and NEW are both characters used to mark files."
2108 (interactive
2109 (let* ((cursor-in-echo-area t)
2110 (old (progn (message "Change (old mark): ") (read-char)))
2111 (new (progn (message "Change %c marks to (new mark): " old)
2112 (read-char))))
2113 (list old new)))
e4e02841
RS
2114 (if (or (eq old ?\r) (eq new ?\r))
2115 (ding)
2116 (let ((string (format "\n%c" old))
2117 (buffer-read-only))
2118 (save-excursion
2119 (goto-char (point-min))
2120 (while (search-forward string nil t)
a15a76f7
RS
2121 (if (if (= old ?\ )
2122 (save-match-data
2123 (dired-get-filename 'no-dir t))
2124 t)
2125 (subst-char-in-region (match-beginning 0)
2126 (match-end 0) old new)))))))
6482fcac 2127
b1ecd9c6
RS
2128(defun dired-unmark-all-files-no-query ()
2129 "Remove all marks from all files in the Dired buffer."
2130 (interactive)
2131 (dired-unmark-all-files ?\r))
2132
8b87a301 2133(defun dired-unmark-all-files (mark &optional arg)
b602ba2f
RS
2134 "Remove a specific mark (or any mark) from every file.
2135After this command, type the mark character to remove,
2136or type RET to remove all marks.
3585916f 2137With prefix arg, query for each marked file.
492d2437 2138Type \\[help-command] at that time for help."
b602ba2f
RS
2139 (interactive "cRemove marks (RET means all): \nP")
2140 (save-excursion
2141 (let* ((count 0)
2142 buffer-read-only case-fold-search query
2143 (string (format "\n%c" mark))
2144 (help-form "\
8b87a301
RS
2145Type SPC or `y' to unmark one file, DEL or `n' to skip to next,
2146`!' to unmark all remaining files with no more questions."))
b602ba2f
RS
2147 (goto-char (point-min))
2148 (while (if (eq mark ?\r)
2149 (re-search-forward dired-re-mark nil t)
2150 (search-forward string nil t))
2151 (if (or (not arg)
2152 (dired-query 'query "Unmark file `%s'? "
2153 (dired-get-filename t)))
2154 (progn (subst-char-in-region (1- (point)) (point)
2155 (preceding-char) ?\ )
2156 (setq count (1+ count)))))
2157 (message (if (= count 1) "1 mark removed"
2158 "%d marks removed")
2159 count))))
492d2437 2160\f
492d2437 2161;; Logging failures operating on files, and showing the results.
84fc2cfa 2162
492d2437 2163(defvar dired-log-buffer "*Dired log*")
84fc2cfa 2164
492d2437
RS
2165(defun dired-why ()
2166 "Pop up a buffer with error log output from Dired.
2167A group of errors from a single command ends with a formfeed.
2168Thus, use \\[backward-page] to find the beginning of a group of errors."
2169 (interactive)
2170 (if (get-buffer dired-log-buffer)
2171 (let ((owindow (selected-window))
2172 (window (display-buffer (get-buffer dired-log-buffer))))
2173 (unwind-protect
6482fcac 2174 (progn
492d2437
RS
2175 (select-window window)
2176 (goto-char (point-max))
2177 (recenter -1))
2178 (select-window owindow)))))
2179
2180(defun dired-log (log &rest args)
2181 ;; Log a message or the contents of a buffer.
2182 ;; If LOG is a string and there are more args, it is formatted with
2183 ;; those ARGS. Usually the LOG string ends with a \n.
2184 ;; End each bunch of errors with (dired-log t): this inserts
2185 ;; current time and buffer, and a \f (formfeed).
2186 (let ((obuf (current-buffer)))
2187 (unwind-protect ; want to move point
2188 (progn
2189 (set-buffer (get-buffer-create dired-log-buffer))
2190 (goto-char (point-max))
2191 (let (buffer-read-only)
2192 (cond ((stringp log)
2193 (insert (if args
2194 (apply (function format) log args)
2195 log)))
2196 ((bufferp log)
2197 (insert-buffer log))
2198 ((eq t log)
2199 (insert "\n\t" (current-time-string)
2200 "\tBuffer `" (buffer-name obuf) "'\n\f\n")))))
2201 (set-buffer obuf))))
2202
2203(defun dired-log-summary (string failures)
2204 (message (if failures "%s--type ? for details (%s)"
2205 "%s--type ? for details")
2206 string failures)
2207 ;; Log a summary describing a bunch of errors.
2208 (dired-log (concat "\n" string))
2209 (dired-log t))
2210\f
2211;;; Sorting
2212
2213;; Most ls can only sort by name or by date (with -t), nothing else.
2214;; GNU ls sorts on size with -S, on extension with -X, and unsorted with -U.
2215;; So anything that does not contain these is sort "by name".
2216
2217(defvar dired-ls-sorting-switches "SXU"
2218 "String of `ls' switches (single letters) except `t' that influence sorting.")
2219
2220(defvar dired-sort-by-date-regexp
2221 (concat "^-[^" dired-ls-sorting-switches
2222 "]*t[^" dired-ls-sorting-switches "]*$")
2223 "Regexp recognized by dired to set `by date' mode.")
2224
2225(defvar dired-sort-by-name-regexp
2226 (concat "^-[^t" dired-ls-sorting-switches "]+$")
2227 "Regexp recognized by dired to set `by name' mode.")
2228
492d2437
RS
2229(defun dired-sort-set-modeline ()
2230 ;; Set modeline display according to dired-actual-switches.
2231 ;; Modeline display of "by name" or "by date" guarantees the user a
2232 ;; match with the corresponding regexps. Non-matching switches are
2233 ;; shown literally.
1d673d85 2234 (setq mode-name
492d2437
RS
2235 (let (case-fold-search)
2236 (cond ((string-match dired-sort-by-name-regexp dired-actual-switches)
1d673d85 2237 "Dired by name")
492d2437 2238 ((string-match dired-sort-by-date-regexp dired-actual-switches)
1d673d85 2239 "Dired by date")
492d2437 2240 (t
1d673d85 2241 (concat "Dired " dired-actual-switches)))))
45d8d39f 2242 (force-mode-line-update))
492d2437
RS
2243
2244(defun dired-sort-toggle-or-edit (&optional arg)
2245 "Toggle between sort by date/name and refresh the dired buffer.
2246With a prefix argument you can edit the current listing switches instead."
84fc2cfa 2247 (interactive "P")
492d2437
RS
2248 (if arg
2249 (dired-sort-other
2250 (read-string "ls switches (must contain -l): " dired-actual-switches))
2251 (dired-sort-toggle)))
2252
2253(defun dired-sort-toggle ()
2254 ;; Toggle between sort by date/name. Reverts the buffer.
2255 (setq dired-actual-switches
2256 (let (case-fold-search)
2257 (concat
2258 "-l"
26add1bf 2259 (dired-replace-in-string (concat "[-lt"
492d2437
RS
2260 dired-ls-sorting-switches "]")
2261 ""
2262 dired-actual-switches)
2263 (if (string-match (concat "[t" dired-ls-sorting-switches "]")
2264 dired-actual-switches)
2265 ""
2266 "t"))))
2267 (dired-sort-set-modeline)
2268 (revert-buffer))
2269
2270(defun dired-replace-in-string (regexp newtext string)
2271 ;; Replace REGEXP with NEWTEXT everywhere in STRING and return result.
2272 ;; NEWTEXT is taken literally---no \\DIGIT escapes will be recognized.
2273 (let ((result "") (start 0) mb me)
2274 (while (string-match regexp string start)
2275 (setq mb (match-beginning 0)
2276 me (match-end 0)
2277 result (concat result (substring string start mb) newtext)
2278 start me))
2279 (concat result (substring string start))))
2280
2281(defun dired-sort-other (switches &optional no-revert)
2282 ;; Specify new ls SWITCHES for current dired buffer. Values matching
2283 ;; `dired-sort-by-date-regexp' or `dired-sort-by-name-regexp' set the
2284 ;; minor mode accordingly, others appear literally in the mode line.
2285 ;; With optional second arg NO-REVERT, don't refresh the listing afterwards.
2286 (setq dired-actual-switches switches)
6cfd24f9 2287 (if (eq major-mode 'dired-mode) (dired-sort-set-modeline))
492d2437 2288 (or no-revert (revert-buffer)))
84fc2cfa 2289\f
492d2437
RS
2290;; To make this file smaller, the less common commands
2291;; go in a separate file. But autoload them here
2292;; to make the separation invisible.
2293
2294(autoload 'dired-diff "dired-aux"
2295 "Compare file at point with file FILE using `diff'.
2296FILE defaults to the file at the mark.
ab67260b 2297The prompted-for file is the first file given to `diff'."
492d2437
RS
2298 t)
2299
2300(autoload 'dired-backup-diff "dired-aux"
2301 "Diff this file with its backup file or vice versa.
2302Uses the latest backup, if there are several numerical backups.
2303If this file is a backup, diff it with its original.
ab67260b 2304The backup file is the first file given to `diff'."
492d2437
RS
2305 t)
2306
2d051399
RS
2307(autoload 'dired-clean-directory "dired-aux"
2308 "Flag numerical backups for deletion.
2309Spares `dired-kept-versions' latest versions, and `kept-old-versions' oldest.
2310Positive prefix arg KEEP overrides `dired-kept-versions';
2311Negative prefix arg KEEP overrides `kept-old-versions' with KEEP made positive.
2312
2313To clear the flags on these files, you can use \\[dired-flag-backup-files]
2314with a prefix argument."
2315 t)
2316
492d2437
RS
2317(autoload 'dired-do-chmod "dired-aux"
2318 "Change the mode of the marked (or next ARG) files.
2319This calls chmod, thus symbolic modes like `g+w' are allowed."
2320 t)
2321
2322(autoload 'dired-do-chgrp "dired-aux"
2323 "Change the group of the marked (or next ARG) files."
2324 t)
2325
2326(autoload 'dired-do-chown "dired-aux"
2327 "Change the owner of the marked (or next ARG) files."
2328 t)
2329
2330(autoload 'dired-do-print "dired-aux"
2331 "Print the marked (or next ARG) files.
2332Uses the shell command coming from variables `lpr-command' and
2333`lpr-switches' as default."
2334 t)
2335
2336(autoload 'dired-do-shell-command "dired-aux"
6482fcac
RS
2337 "Run a shell command COMMAND on the marked files.
2338If no files are marked or a specific numeric prefix arg is given,
2339the next ARG files are used. Just \\[universal-argument] means the current file.
2340The prompt mentions the file(s) or the marker, as appropriate.
2341
492d2437 2342If there is output, it goes to a separate buffer.
6482fcac 2343
492d2437
RS
2344Normally the command is run on each file individually.
2345However, if there is a `*' in the command then it is run
2346just once with the entire file list substituted there.
2347
6482fcac
RS
2348No automatic redisplay of dired buffers is attempted, as there's no
2349telling what files the command may have changed. Type
2350\\[dired-do-redisplay] to redisplay the marked files.
492d2437
RS
2351
2352The shell command has the top level directory as working directory, so
2353output files usually are created there instead of in a subdir."
2354 t)
2355
492d2437
RS
2356(autoload 'dired-do-kill-lines "dired-aux"
2357 "Kill all marked lines (not the files).
2358With a prefix arg, kill all lines not marked or flagged."
2359 t)
2360
2361(autoload 'dired-do-compress "dired-aux"
2362 "Compress or uncompress marked (or next ARG) files."
2363 t)
2364
2365(autoload 'dired-do-byte-compile "dired-aux"
2366 "Byte compile marked (or next ARG) Emacs Lisp files."
2367 t)
2368
2369(autoload 'dired-do-load "dired-aux"
2370 "Load the marked (or next ARG) Emacs Lisp files."
2371 t)
2372
2373(autoload 'dired-do-redisplay "dired-aux"
2374 "Redisplay all marked (or next ARG) files.
2375If on a subdir line, redisplay that subdirectory. In that case,
2376a prefix arg lets you edit the `ls' switches used for the new listing."
2377 t)
2378
492d2437 2379(autoload 'dired-create-directory "dired-aux"
84fc2cfa 2380 "Create a directory called DIRECTORY."
492d2437 2381 t)
84fc2cfa 2382
492d2437
RS
2383(autoload 'dired-do-copy "dired-aux"
2384 "Copy all marked (or next ARG) files, or copy the current file.
2385Thus, a zero prefix argument copies nothing. But it toggles the
2386variable `dired-copy-preserve-time' (which see)."
2387 t)
2388
2389(autoload 'dired-do-symlink "dired-aux"
2390 "Make symbolic links to current file or all marked (or next ARG) files.
2391When operating on just the current file, you specify the new name.
2392When operating on multiple or marked files, you specify a directory
2393and new symbolic links are made in that directory
2394with the same names that the files currently have."
2395 t)
2396
2397(autoload 'dired-do-hardlink "dired-aux"
2398 "Add names (hard links) current file or all marked (or next ARG) files.
2399When operating on just the current file, you specify the new name.
2400When operating on multiple or marked files, you specify a directory
2401and new hard links are made in that directory
2402with the same names that the files currently have."
2403 t)
2404
2405(autoload 'dired-do-rename "dired-aux"
2406 "Rename current file or all marked (or next ARG) files.
2407When renaming just the current file, you specify the new name.
2408When renaming multiple or marked files, you specify a directory."
2409 t)
2410
2411(autoload 'dired-do-rename-regexp "dired-aux"
2412 "Rename marked files containing REGEXP to NEWNAME.
2413As each match is found, the user must type a character saying
2414 what to do with it. For directions, type \\[help-command] at that time.
2415NEWNAME may contain \\=\\<n> or \\& as in `query-replace-regexp'.
2416REGEXP defaults to the last regexp used.
2417With a zero prefix arg, renaming by regexp affects the complete
2418 pathname - usually only the non-directory part of file names is used
2419 and changed."
2420 t)
2421
2422(autoload 'dired-do-copy-regexp "dired-aux"
2423 "Copy all marked files containing REGEXP to NEWNAME.
2424See function `dired-rename-regexp' for more info."
2425 t)
2426
2427(autoload 'dired-do-hardlink-regexp "dired-aux"
2428 "Hardlink all marked files containing REGEXP to NEWNAME.
2429See function `dired-rename-regexp' for more info."
2430 t)
2431
2432(autoload 'dired-do-symlink-regexp "dired-aux"
2433 "Symlink all marked files containing REGEXP to NEWNAME.
2434See function `dired-rename-regexp' for more info."
2435 t)
2436
2437(autoload 'dired-upcase "dired-aux"
2438 "Rename all marked (or next ARG) files to upper case."
2439 t)
2440
2441(autoload 'dired-downcase "dired-aux"
2442 "Rename all marked (or next ARG) files to lower case."
2443 t)
2444
2445(autoload 'dired-maybe-insert-subdir "dired-aux"
2446 "Insert this subdirectory into the same dired buffer.
2447If it is already present, just move to it (type \\[dired-do-redisplay] to refresh),
2448 else inserts it at its natural place (as `ls -lR' would have done).
2449With a prefix arg, you may edit the ls switches used for this listing.
2450 You can add `R' to the switches to expand the whole tree starting at
2451 this subdirectory.
2452This function takes some pains to conform to `ls -lR' output."
2453 t)
2454
2455(autoload 'dired-next-subdir "dired-aux"
2456 "Go to next subdirectory, regardless of level."
2457 t)
2458
2459(autoload 'dired-prev-subdir "dired-aux"
2460 "Go to previous subdirectory, regardless of level.
2461When called interactively and not on a subdir line, go to this subdir's line."
2462 t)
2463
2464(autoload 'dired-goto-subdir "dired-aux"
2465 "Go to end of header line of DIR in this dired buffer.
2466Return value of point on success, otherwise return nil.
2467The next char is either \\n, or \\r if DIR is hidden."
2468 t)
2469
2470(autoload 'dired-mark-subdir-files "dired-aux"
2471 "Mark all files except `.' and `..'."
2472 t)
2473
2474(autoload 'dired-kill-subdir "dired-aux"
2475 "Remove all lines of current subdirectory.
2476Lower levels are unaffected."
2477 t)
2478
2479(autoload 'dired-tree-up "dired-aux"
2480 "Go up ARG levels in the dired tree."
2481 t)
2482
2483(autoload 'dired-tree-down "dired-aux"
2484 "Go down in the dired tree."
2485 t)
2486
2487(autoload 'dired-hide-subdir "dired-aux"
2488 "Hide or unhide the current subdirectory and move to next directory.
2489Optional prefix arg is a repeat factor.
2490Use \\[dired-hide-all] to (un)hide all directories."
2491 t)
2492
2493(autoload 'dired-hide-all "dired-aux"
2494 "Hide all subdirectories, leaving only their header lines.
2495If there is already something hidden, make everything visible again.
2496Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."
2497 t)
84fc2cfa 2498\f
492d2437
RS
2499(if (eq system-type 'vax-vms)
2500 (load "dired-vms"))
84fc2cfa 2501
52041219
RS
2502(provide 'dired)
2503
57e15005
BF
2504(run-hooks 'dired-load-hook) ; for your customizations
2505
52041219 2506;;; dired.el ends here