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[emacs.git] / lisp / dired-aux.el
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1 ;;; dired-aux.el --- less commonly used parts of dired -*-byte-compile-dynamic: t;-*-
3 ;; Copyright (C) 1985, 1986, 1992, 1994, 1998, 2000, 2001, 2002, 2003,
4 ;; 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
6 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>.
7 ;; Maintainer: FSF
8 ;; Keywords: files
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 3, or (at your option)
15 ;; any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 ;; Boston, MA 02110-1301, USA.
27 ;;; Commentary:
29 ;; The parts of dired mode not normally used. This is a space-saving hack
30 ;; to avoid having to load a large mode when all that's wanted are a few
31 ;; functions.
33 ;; Rewritten in 1990/1991 to add tree features, file marking and
34 ;; sorting by Sebastian Kremer <sk@thp.uni-koeln.de>.
35 ;; Finished up by rms in 1992.
37 ;;; Code:
39 ;; We need macros in dired.el to compile properly,
40 ;; and we call subroutines in it too.
41 (require 'dired)
43 (defvar dired-create-files-failures nil
44 "Variable where `dired-create-files' records failing file names.
45 Functions that operate recursively can store additional names
46 into this list; they also should call `dired-log' to log the errors.")
48 ;;; 15K
49 ;;;###begin dired-cmd.el
50 ;; Diffing and compressing
52 (defconst dired-star-subst-regexp "\\(^\\|[ \t]\\)\\*\\([ \t]\\|$\\)")
53 (defconst dired-quark-subst-regexp "\\(^\\|[ \t]\\)\\?\\([ \t]\\|$\\)")
55 ;;;###autoload
56 (defun dired-diff (file &optional switches)
57 "Compare file at point with file FILE using `diff'.
58 FILE defaults to the file at the mark. (That's the mark set by
59 \\[set-mark-command], not by Dired's \\[dired-mark] command.)
60 The prompted-for file is the first file given to `diff'.
61 With prefix arg, prompt for second argument SWITCHES,
62 which is options for `diff'."
63 (interactive
64 (let ((current (dired-get-filename t))
65 (default (if (mark t)
66 (save-excursion (goto-char (mark t))
67 (dired-get-filename t t)))))
68 (if (or (equal default current)
69 (and (not (equal (dired-dwim-target-directory)
70 (dired-current-directory)))
71 (not mark-active)))
72 (setq default nil))
73 (require 'diff)
74 (list (read-file-name (format "Diff %s with%s: "
75 current
76 (if default
77 (concat " (default " default ")")
78 ""))
79 (if default
80 (dired-current-directory)
81 (dired-dwim-target-directory))
82 default t)
83 (if current-prefix-arg
84 (read-string "Options for diff: "
85 (if (stringp diff-switches)
86 diff-switches
87 (mapconcat 'identity diff-switches " ")))))))
88 (diff file (dired-get-filename t) switches))
90 ;;;###autoload
91 (defun dired-backup-diff (&optional switches)
92 "Diff this file with its backup file or vice versa.
93 Uses the latest backup, if there are several numerical backups.
94 If this file is a backup, diff it with its original.
95 The backup file is the first file given to `diff'.
96 With prefix arg, prompt for argument SWITCHES which is options for `diff'."
97 (interactive
98 (if current-prefix-arg
99 (list (read-string "Options for diff: "
100 (if (stringp diff-switches)
101 diff-switches
102 (mapconcat 'identity diff-switches " "))))
103 nil))
104 (diff-backup (dired-get-filename) switches))
106 ;;;###autoload
107 (defun dired-compare-directories (dir2 predicate)
108 "Mark files with different file attributes in two dired buffers.
109 Compare file attributes of files in the current directory
110 with file attributes in directory DIR2 using PREDICATE on pairs of files
111 with the same name. Mark files for which PREDICATE returns non-nil.
112 Mark files with different names if PREDICATE is nil (or interactively
113 with empty input at the predicate prompt).
115 PREDICATE is a Lisp expression that can refer to the following variables:
117 size1, size2 - file size in bytes
118 mtime1, mtime2 - last modification time in seconds, as a float
119 fa1, fa2 - list of file attributes
120 returned by function `file-attributes'
122 where 1 refers to attribute of file in the current dired buffer
123 and 2 to attribute of file in second dired buffer.
125 Examples of PREDICATE:
127 (> mtime1 mtime2) - mark newer files
128 (not (= size1 size2)) - mark files with different sizes
129 (not (string= (nth 8 fa1) (nth 8 fa2))) - mark files with different modes
130 (not (and (= (nth 2 fa1) (nth 2 fa2)) - mark files with different UID
131 (= (nth 3 fa1) (nth 3 fa2)))) and GID."
132 (interactive
133 (list (read-directory-name (format "Compare %s with: "
134 (dired-current-directory))
135 (dired-dwim-target-directory)
136 (dired-dwim-target-directory))
137 (read-from-minibuffer "Mark if (lisp expr or RET): " nil nil t nil "nil")))
138 (let* ((dir1 (dired-current-directory))
139 (file-alist1 (dired-files-attributes dir1))
140 (file-alist2 (dired-files-attributes dir2))
141 file-list1 file-list2)
142 (setq file-alist1 (delq (assoc "." file-alist1) file-alist1))
143 (setq file-alist1 (delq (assoc ".." file-alist1) file-alist1))
144 (setq file-alist2 (delq (assoc "." file-alist2) file-alist2))
145 (setq file-alist2 (delq (assoc ".." file-alist2) file-alist2))
146 (setq file-list1 (mapcar
147 'cadr
148 (dired-file-set-difference
149 file-alist1 file-alist2
150 predicate))
151 file-list2 (mapcar
152 'cadr
153 (dired-file-set-difference
154 file-alist2 file-alist1
155 predicate)))
156 (dired-fun-in-all-buffers
157 dir1 nil
158 (lambda ()
159 (dired-mark-if
160 (member (dired-get-filename nil t) file-list1) nil)))
161 (dired-fun-in-all-buffers
162 dir2 nil
163 (lambda ()
164 (dired-mark-if
165 (member (dired-get-filename nil t) file-list2) nil)))
166 (message "Marked in dir1: %s files, in dir2: %s files"
167 (length file-list1)
168 (length file-list2))))
170 (defun dired-file-set-difference (list1 list2 predicate)
171 "Combine LIST1 and LIST2 using a set-difference operation.
172 The result list contains all file items that appear in LIST1 but not LIST2.
173 This is a non-destructive function; it makes a copy of the data if necessary
174 to avoid corrupting the original LIST1 and LIST2.
175 PREDICATE (see `dired-compare-directories') is an additional match
176 condition. Two file items are considered to match if they are equal
177 *and* PREDICATE evaluates to t."
178 (if (or (null list1) (null list2))
179 list1
180 (let (res)
181 (dolist (file1 list1)
182 (unless (let ((list list2))
183 (while (and list
184 (not (let* ((file2 (car list))
185 (fa1 (car (cddr file1)))
186 (fa2 (car (cddr file2)))
187 (size1 (nth 7 fa1))
188 (size2 (nth 7 fa2))
189 (mtime1 (float-time (nth 5 fa1)))
190 (mtime2 (float-time (nth 5 fa2))))
191 (and
192 (equal (car file1) (car file2))
193 (not (eval predicate))))))
194 (setq list (cdr list)))
195 list)
196 (setq res (cons file1 res))))
197 (nreverse res))))
199 (defun dired-files-attributes (dir)
200 "Return a list of all file names and attributes from DIR.
201 List has a form of (file-name full-file-name (attribute-list))"
202 (mapcar
203 (lambda (file-name)
204 (let ((full-file-name (expand-file-name file-name dir)))
205 (list file-name
206 full-file-name
207 (file-attributes full-file-name))))
208 (directory-files dir)))
211 (defun dired-touch-initial (files)
212 "Create initial input value for `touch' command."
213 (let (initial)
214 (while files
215 (let ((current (nth 5 (file-attributes (car files)))))
216 (if (and initial (not (equal initial current)))
217 (setq initial (current-time) files nil)
218 (setq initial current))
219 (setq files (cdr files))))
220 (format-time-string "%Y%m%d%H%M.%S" initial)))
222 (defun dired-do-chxxx (attribute-name program op-symbol arg)
223 ;; Change file attributes (mode, group, owner, timestamp) of marked files and
224 ;; refresh their file lines.
225 ;; ATTRIBUTE-NAME is a string describing the attribute to the user.
226 ;; PROGRAM is the program used to change the attribute.
227 ;; OP-SYMBOL is the type of operation (for use in dired-mark-pop-up).
228 ;; ARG describes which files to use, as in dired-get-marked-files.
229 (let* ((files (dired-get-marked-files t arg))
230 (new-attribute
231 (dired-mark-read-string
232 (concat "Change " attribute-name " of %s to: ")
233 (if (eq op-symbol 'touch) (dired-touch-initial files))
234 op-symbol arg files))
235 (operation (concat program " " new-attribute))
236 failures)
237 (setq failures
238 (dired-bunch-files 10000
239 (function dired-check-process)
240 (append
241 (list operation program)
242 (if (eq op-symbol 'touch)
243 '("-t") nil)
244 (list new-attribute)
245 (if (string-match "gnu" system-configuration)
246 '("--") nil))
247 files))
248 (dired-do-redisplay arg);; moves point if ARG is an integer
249 (if failures
250 (dired-log-summary
251 (format "%s: error" operation)
252 nil))))
254 ;;;###autoload
255 (defun dired-do-chmod (&optional arg)
256 "Change the mode of the marked (or next ARG) files.
257 Symbolic modes like `g+w' are allowed."
258 (interactive "P")
259 (let* ((files (dired-get-marked-files t arg))
260 (modes (dired-mark-read-string
261 "Change mode of %s to: " nil
262 'chmod arg files))
263 (num-modes (if (string-match "^[0-7]+" modes)
264 (string-to-number modes 8))))
265 (dolist (file files)
266 (set-file-modes
267 file
268 (if num-modes num-modes
269 (file-modes-symbolic-to-number modes (file-modes file)))))
270 (dired-do-redisplay arg)))
272 ;;;###autoload
273 (defun dired-do-chgrp (&optional arg)
274 "Change the group of the marked (or next ARG) files."
275 (interactive "P")
276 (if (memq system-type '(ms-dos windows-nt))
277 (error "chgrp not supported on this system"))
278 (dired-do-chxxx "Group" "chgrp" 'chgrp arg))
280 ;;;###autoload
281 (defun dired-do-chown (&optional arg)
282 "Change the owner of the marked (or next ARG) files."
283 (interactive "P")
284 (if (memq system-type '(ms-dos windows-nt))
285 (error "chown not supported on this system"))
286 (dired-do-chxxx "Owner" dired-chown-program 'chown arg))
288 ;;;###autoload
289 (defun dired-do-touch (&optional arg)
290 "Change the timestamp of the marked (or next ARG) files.
291 This calls touch."
292 (interactive "P")
293 (dired-do-chxxx "Timestamp" dired-touch-program 'touch arg))
295 ;; Process all the files in FILES in batches of a convenient size,
296 ;; by means of (FUNCALL FUNCTION ARGS... SOME-FILES...).
297 ;; Batches are chosen to need less than MAX chars for the file names,
298 ;; allowing 3 extra characters of separator per file name.
299 (defun dired-bunch-files (max function args files)
300 (let (pending
301 past
302 (pending-length 0)
303 failures)
304 ;; Accumulate files as long as they fit in MAX chars,
305 ;; then process the ones accumulated so far.
306 (while files
307 (let* ((thisfile (car files))
308 (thislength (+ (length thisfile) 3))
309 (rest (cdr files)))
310 ;; If we have at least 1 pending file
311 ;; and this file won't fit in the length limit, process now.
312 (if (and pending (> (+ thislength pending-length) max))
313 (setq pending (nreverse pending)
314 ;; The elements of PENDING are now in forward order.
315 ;; Do the operation and record failures.
316 failures (nconc (apply function (append args pending))
317 failures)
318 ;; Transfer the elemens of PENDING onto PAST
319 ;; and clear it out. Now PAST contains the first N files
320 ;; specified (for some N), and FILES contains the rest.
321 past (nconc past pending)
322 pending nil
323 pending-length 0))
324 ;; Do (setq pending (cons thisfile pending))
325 ;; but reuse the cons that was in `files'.
326 (setcdr files pending)
327 (setq pending files)
328 (setq pending-length (+ thislength pending-length))
329 (setq files rest)))
330 (setq pending (nreverse pending))
331 (prog1
332 (nconc (apply function (append args pending))
333 failures)
334 ;; Now the original list FILES has been put back as it was.
335 (nconc past pending))))
337 ;;;###autoload
338 (defun dired-do-print (&optional arg)
339 "Print the marked (or next ARG) files.
340 Uses the shell command coming from variables `lpr-command' and
341 `lpr-switches' as default."
342 (interactive "P")
343 (let* ((file-list (dired-get-marked-files t arg))
344 (command (dired-mark-read-string
345 "Print %s with: "
346 (mapconcat 'identity
347 (cons lpr-command
348 (if (stringp lpr-switches)
349 (list lpr-switches)
350 lpr-switches))
351 " ")
352 'print arg file-list)))
353 (dired-run-shell-command (dired-shell-stuff-it command file-list nil))))
355 ;; Read arguments for a marked-files command that wants a string
356 ;; that is not a file name,
357 ;; perhaps popping up the list of marked files.
358 ;; ARG is the prefix arg and indicates whether the files came from
359 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
360 ;; If the current file was used, the list has but one element and ARG
361 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
363 (defun dired-mark-read-string (prompt initial op-symbol arg files)
364 ;; PROMPT for a string, with INITIAL input.
365 ;; Other args are used to give user feedback and pop-up:
366 ;; OP-SYMBOL of command, prefix ARG, marked FILES.
367 (dired-mark-pop-up
368 nil op-symbol files
369 (function read-string)
370 (format prompt (dired-mark-prompt arg files)) initial))
372 ;;; Cleaning a directory: flagging some backups for deletion.
374 (defvar dired-file-version-alist)
376 ;;;###autoload
377 (defun dired-clean-directory (keep)
378 "Flag numerical backups for deletion.
379 Spares `dired-kept-versions' latest versions, and `kept-old-versions' oldest.
380 Positive prefix arg KEEP overrides `dired-kept-versions';
381 Negative prefix arg KEEP overrides `kept-old-versions' with KEEP made positive.
383 To clear the flags on these files, you can use \\[dired-flag-backup-files]
384 with a prefix argument."
385 (interactive "P")
386 (setq keep (if keep (prefix-numeric-value keep) dired-kept-versions))
387 (let ((early-retention (if (< keep 0) (- keep) kept-old-versions))
388 (late-retention (if (<= keep 0) dired-kept-versions keep))
389 (dired-file-version-alist ()))
390 (message "Cleaning numerical backups (keeping %d late, %d old)..."
391 late-retention early-retention)
392 ;; Look at each file.
393 ;; If the file has numeric backup versions,
394 ;; put on dired-file-version-alist an element of the form
395 ;; (FILENAME . VERSION-NUMBER-LIST)
396 (dired-map-dired-file-lines (function dired-collect-file-versions))
397 ;; Sort each VERSION-NUMBER-LIST,
398 ;; and remove the versions not to be deleted.
399 (let ((fval dired-file-version-alist))
400 (while fval
401 (let* ((sorted-v-list (cons 'q (sort (cdr (car fval)) '<)))
402 (v-count (length sorted-v-list)))
403 (if (> v-count (+ early-retention late-retention))
404 (rplacd (nthcdr early-retention sorted-v-list)
405 (nthcdr (- v-count late-retention)
406 sorted-v-list)))
407 (rplacd (car fval)
408 (cdr sorted-v-list)))
409 (setq fval (cdr fval))))
410 ;; Look at each file. If it is a numeric backup file,
411 ;; find it in a VERSION-NUMBER-LIST and maybe flag it for deletion.
412 (dired-map-dired-file-lines (function dired-trample-file-versions))
413 (message "Cleaning numerical backups...done")))
415 ;;; Subroutines of dired-clean-directory.
417 (defun dired-map-dired-file-lines (fun)
418 ;; Perform FUN with point at the end of each non-directory line.
419 ;; FUN takes one argument, the absolute filename.
420 (save-excursion
421 (let (file buffer-read-only)
422 (goto-char (point-min))
423 (while (not (eobp))
424 (save-excursion
425 (and (not (looking-at dired-re-dir))
426 (not (eolp))
427 (setq file (dired-get-filename nil t)) ; nil on non-file
428 (progn (end-of-line)
429 (funcall fun file))))
430 (forward-line 1)))))
432 (defun dired-collect-file-versions (fn)
433 (let ((fn (file-name-sans-versions fn)))
434 ;; Only do work if this file is not already in the alist.
435 (if (assoc fn dired-file-version-alist)
437 ;; If it looks like file FN has versions, return a list of the versions.
438 ;;That is a list of strings which are file names.
439 ;;The caller may want to flag some of these files for deletion.
440 (let* ((base-versions
441 (concat (file-name-nondirectory fn) ".~"))
442 (backup-extract-version-start (length base-versions))
443 (possibilities (file-name-all-completions
444 base-versions
445 (file-name-directory fn)))
446 (versions (mapcar 'backup-extract-version possibilities)))
447 (if versions
448 (setq dired-file-version-alist
449 (cons (cons fn versions)
450 dired-file-version-alist)))))))
452 (defun dired-trample-file-versions (fn)
453 (let* ((start-vn (string-match "\\.~[0-9]+~$" fn))
454 base-version-list)
455 (and start-vn
456 (setq base-version-list ; there was a base version to which
457 (assoc (substring fn 0 start-vn) ; this looks like a
458 dired-file-version-alist)) ; subversion
459 (not (memq (string-to-number (substring fn (+ 2 start-vn)))
460 base-version-list)) ; this one doesn't make the cut
461 (progn (beginning-of-line)
462 (delete-char 1)
463 (insert dired-del-marker)))))
465 ;;; Shell commands
467 (declare-function mailcap-parse-mailcaps "mailcap" (&optional path force))
468 (declare-function mailcap-parse-mimetypes "mailcap" (&optional path force))
469 (declare-function mailcap-extension-to-mime "mailcap" (extn))
470 (declare-function mailcap-mime-info "mailcap"
471 (string &optional request no-decode))
473 (defun dired-read-shell-command-default (files)
474 "Return a list of default commands for `dired-read-shell-command'."
475 (require 'mailcap)
476 (mailcap-parse-mailcaps)
477 (mailcap-parse-mimetypes)
478 (let* ((all-mime-type
479 ;; All unique MIME types from file extensions
480 (delete-dups (mapcar (lambda (file)
481 (mailcap-extension-to-mime
482 (file-name-extension file t)))
483 files)))
484 (all-mime-info
485 ;; All MIME info lists
486 (delete-dups (mapcar (lambda (mime-type)
487 (mailcap-mime-info mime-type 'all))
488 all-mime-type)))
489 (common-mime-info
490 ;; Intersection of mime-infos from different mime-types;
491 ;; or just the first MIME info for a single MIME type
492 (if (cdr all-mime-info)
493 (delq nil (mapcar (lambda (mi1)
494 (unless (memq nil (mapcar
495 (lambda (mi2)
496 (member mi1 mi2))
497 (cdr all-mime-info)))
498 mi1))
499 (car all-mime-info)))
500 (car all-mime-info)))
501 (commands
502 ;; Command strings from `viewer' field of the MIME info
503 (delq nil (mapcar (lambda (mime-info)
504 (let ((command (cdr (assoc 'viewer mime-info))))
505 (if (stringp command)
506 (replace-regexp-in-string
507 ;; Replace mailcap's `%s' placeholder
508 ;; with dired's `?' placeholder
509 "%s" "?"
510 (replace-regexp-in-string
511 ;; Remove the final filename placeholder
512 "\s*\\('\\)?%s\\1?\s*\\'" "" command nil t)
513 nil t))))
514 common-mime-info))))
515 commands))
517 (defun dired-read-shell-command (prompt arg files)
518 ;; "Read a dired shell command prompting with PROMPT (using read-string).
519 ;;ARG is the prefix arg and may be used to indicate in the prompt which
520 ;; files are affected.
521 ;;This is an extra function so that you can redefine it, e.g., to use gmhist."
522 (dired-mark-pop-up
523 nil 'shell files
524 (function read-string)
525 (format prompt (dired-mark-prompt arg files))
526 nil 'shell-command-history
527 (dired-read-shell-command-default files)))
529 ;; The in-background argument is only needed in Emacs 18 where
530 ;; shell-command doesn't understand an appended ampersand `&'.
531 ;;;###autoload
532 (defun dired-do-shell-command (command &optional arg file-list)
533 "Run a shell command COMMAND on the marked files.
534 If no files are marked or a specific numeric prefix arg is given,
535 the next ARG files are used. Just \\[universal-argument] means the current file.
536 The prompt mentions the file(s) or the marker, as appropriate.
538 If there is a `*' in COMMAND, surrounded by whitespace, this runs
539 COMMAND just once with the entire file list substituted there.
541 If there is no `*', but there is a `?' in COMMAND, surrounded by
542 whitespace, this runs COMMAND on each file individually with the
543 file name substituted for `?'.
545 Otherwise, this runs COMMAND on each file individually with the
546 file name added at the end of COMMAND (separated by a space).
548 `*' and `?' when not surrounded by whitespace have no special
549 significance for `dired-do-shell-command', and are passed through
550 normally to the shell, but you must confirm first. To pass `*' by
551 itself to the shell as a wildcard, type `*\"\"'.
553 If COMMAND produces output, it goes to a separate buffer.
555 This feature does not try to redisplay Dired buffers afterward, as
556 there's no telling what files COMMAND may have changed.
557 Type \\[dired-do-redisplay] to redisplay the marked files.
559 When COMMAND runs, its working directory is the top-level directory of
560 the Dired buffer, so output files usually are created there instead of
561 in a subdir.
563 In a noninteractive call (from Lisp code), you must specify
564 the list of file names explicitly with the FILE-LIST argument, which
565 can be produced by `dired-get-marked-files', for example."
566 ;;Functions dired-run-shell-command and dired-shell-stuff-it do the
567 ;;actual work and can be redefined for customization.
568 (interactive
569 (let ((files (dired-get-marked-files t current-prefix-arg)))
570 (list
571 ;; Want to give feedback whether this file or marked files are used:
572 (dired-read-shell-command (concat "! on "
573 "%s: ")
574 current-prefix-arg
575 files)
576 current-prefix-arg
577 files)))
578 (let* ((on-each (not (string-match dired-star-subst-regexp command)))
579 (subst (not (string-match dired-quark-subst-regexp command)))
580 (star (not (string-match "\\*" command)))
581 (qmark (not (string-match "\\?" command))))
582 ;; Get confirmation for wildcards that may have been meant
583 ;; to control substitution of a file name or the file name list.
584 (if (cond ((not (or on-each subst))
585 (error "You can not combine `*' and `?' substitution marks"))
586 ((and star (not on-each))
587 (y-or-n-p "Confirm--do you mean to use `*' as a wildcard? "))
588 ((and qmark (not subst))
589 (y-or-n-p "Confirm--do you mean to use `?' as a wildcard? "))
590 (t))
591 (if on-each
592 (dired-bunch-files
593 (- 10000 (length command))
594 (function (lambda (&rest files)
595 (dired-run-shell-command
596 (dired-shell-stuff-it command files t arg))))
598 file-list)
599 ;; execute the shell command
600 (dired-run-shell-command
601 (dired-shell-stuff-it command file-list nil arg))))))
603 ;; Might use {,} for bash or csh:
604 (defvar dired-mark-prefix ""
605 "Prepended to marked files in dired shell commands.")
606 (defvar dired-mark-postfix ""
607 "Appended to marked files in dired shell commands.")
608 (defvar dired-mark-separator " "
609 "Separates marked files in dired shell commands.")
611 (defun dired-shell-stuff-it (command file-list on-each &optional raw-arg)
612 ;; "Make up a shell command line from COMMAND and FILE-LIST.
613 ;; If ON-EACH is t, COMMAND should be applied to each file, else
614 ;; simply concat all files and apply COMMAND to this.
615 ;; FILE-LIST's elements will be quoted for the shell."
616 ;; Might be redefined for smarter things and could then use RAW-ARG
617 ;; (coming from interactive P and currently ignored) to decide what to do.
618 ;; Smart would be a way to access basename or extension of file names.
619 (let ((stuff-it
620 (if (or (string-match dired-star-subst-regexp command)
621 (string-match dired-quark-subst-regexp command))
622 (lambda (x)
623 (let ((retval command))
624 (while (string-match
625 "\\(^\\|[ \t]\\)\\([*?]\\)\\([ \t]\\|$\\)" retval)
626 (setq retval (replace-match x t t retval 2)))
627 retval))
628 (lambda (x) (concat command dired-mark-separator x)))))
629 (if on-each
630 (mapconcat stuff-it (mapcar 'shell-quote-argument file-list) ";")
631 (let ((files (mapconcat 'shell-quote-argument
632 file-list dired-mark-separator)))
633 (if (> (length file-list) 1)
634 (setq files (concat dired-mark-prefix files dired-mark-postfix)))
635 (funcall stuff-it files)))))
637 ;; This is an extra function so that it can be redefined by ange-ftp.
638 ;;;###autoload
639 (defun dired-run-shell-command (command)
640 (let ((handler
641 (find-file-name-handler (directory-file-name default-directory)
642 'shell-command)))
643 (if handler (apply handler 'shell-command (list command))
644 (shell-command command)))
645 ;; Return nil for sake of nconc in dired-bunch-files.
646 nil)
649 (defun dired-check-process (msg program &rest arguments)
650 ; "Display MSG while running PROGRAM, and check for output.
651 ;Remaining arguments are strings passed as command arguments to PROGRAM.
652 ; On error, insert output
653 ; in a log buffer and return the offending ARGUMENTS or PROGRAM.
654 ; Caller can cons up a list of failed args.
655 ;Else returns nil for success."
656 (let (err-buffer err (dir default-directory))
657 (message "%s..." msg)
658 (save-excursion
659 ;; Get a clean buffer for error output:
660 (setq err-buffer (get-buffer-create " *dired-check-process output*"))
661 (set-buffer err-buffer)
662 (erase-buffer)
663 (setq default-directory dir ; caller's default-directory
664 err (not (eq 0 (apply 'process-file program nil t nil arguments))))
665 (if err
666 (progn
667 (dired-log (concat program " " (prin1-to-string arguments) "\n"))
668 (dired-log err-buffer)
669 (or arguments program t))
670 (kill-buffer err-buffer)
671 (message "%s...done" msg)
672 nil))))
674 ;; Commands that delete or redisplay part of the dired buffer.
676 (defun dired-kill-line (&optional arg)
677 (interactive "P")
678 (setq arg (prefix-numeric-value arg))
679 (let (buffer-read-only file)
680 (while (/= 0 arg)
681 (setq file (dired-get-filename nil t))
682 (if (not file)
683 (error "Can only kill file lines")
684 (save-excursion (and file
685 (dired-goto-subdir file)
686 (dired-kill-subdir)))
687 (delete-region (progn (beginning-of-line) (point))
688 (progn (forward-line 1) (point)))
689 (if (> arg 0)
690 (setq arg (1- arg))
691 (setq arg (1+ arg))
692 (forward-line -1))))
693 (dired-move-to-filename)))
695 ;;;###autoload
696 (defun dired-do-kill-lines (&optional arg fmt)
697 "Kill all marked lines (not the files).
698 With a prefix argument, kill that many lines starting with the current line.
699 \(A negative argument kills backward.)
700 If you use this command with a prefix argument to kill the line
701 for a file that is a directory, which you have inserted in the
702 Dired buffer as a subdirectory, then it deletes that subdirectory
703 from the buffer as well.
704 To kill an entire subdirectory \(without killing its line in the
705 parent directory), go to its directory header line and use this
706 command with a prefix argument (the value does not matter)."
707 ;; Returns count of killed lines. FMT="" suppresses message.
708 (interactive "P")
709 (if arg
710 (if (dired-get-subdir)
711 (dired-kill-subdir)
712 (dired-kill-line arg))
713 (save-excursion
714 (goto-char (point-min))
715 (let (buffer-read-only
716 (count 0)
717 (regexp (dired-marker-regexp)))
718 (while (and (not (eobp))
719 (re-search-forward regexp nil t))
720 (setq count (1+ count))
721 (delete-region (progn (beginning-of-line) (point))
722 (progn (forward-line 1) (point))))
723 (or (equal "" fmt)
724 (message (or fmt "Killed %d line%s.") count (dired-plural-s count)))
725 count))))
727 ;;;###end dired-cmd.el
729 ;;; 30K
730 ;;;###begin dired-cp.el
732 (defun dired-compress ()
733 ;; Compress or uncompress the current file.
734 ;; Return nil for success, offending filename else.
735 (let* (buffer-read-only
736 (from-file (dired-get-filename))
737 (new-file (dired-compress-file from-file)))
738 (if new-file
739 (let ((start (point)))
740 ;; Remove any preexisting entry for the name NEW-FILE.
741 (condition-case nil
742 (dired-remove-entry new-file)
743 (error nil))
744 (goto-char start)
745 ;; Now replace the current line with an entry for NEW-FILE.
746 (dired-update-file-line new-file) nil)
747 (dired-log (concat "Failed to compress" from-file))
748 from-file)))
750 (defvar dired-compress-file-suffixes
751 '(("\\.gz\\'" "" "gunzip")
752 ("\\.tgz\\'" ".tar" "gunzip")
753 ("\\.Z\\'" "" "uncompress")
754 ;; For .z, try gunzip. It might be an old gzip file,
755 ;; or it might be from compact? pack? (which?) but gunzip handles both.
756 ("\\.z\\'" "" "gunzip")
757 ("\\.dz\\'" "" "dictunzip")
758 ("\\.tbz\\'" ".tar" "bunzip2")
759 ("\\.bz2\\'" "" "bunzip2")
760 ;; This item controls naming for compression.
761 ("\\.tar\\'" ".tgz" nil))
762 "Control changes in file name suffixes for compression and uncompression.
763 Each element specifies one transformation rule, and has the form:
764 (REGEXP NEW-SUFFIX PROGRAM)
765 The rule applies when the old file name matches REGEXP.
766 The new file name is computed by deleting the part that matches REGEXP
767 (as well as anything after that), then adding NEW-SUFFIX in its place.
768 If PROGRAM is non-nil, the rule is an uncompression rule,
769 and uncompression is done by running PROGRAM.
770 Otherwise, the rule is a compression rule, and compression is done with gzip.")
772 ;;;###autoload
773 (defun dired-compress-file (file)
774 ;; Compress or uncompress FILE.
775 ;; Return the name of the compressed or uncompressed file.
776 ;; Return nil if no change in files.
777 (let ((handler (find-file-name-handler file 'dired-compress-file))
778 suffix newname
779 (suffixes dired-compress-file-suffixes))
780 ;; See if any suffix rule matches this file name.
781 (while suffixes
782 (let (case-fold-search)
783 (if (string-match (car (car suffixes)) file)
784 (setq suffix (car suffixes) suffixes nil))
785 (setq suffixes (cdr suffixes))))
786 ;; If so, compute desired new name.
787 (if suffix
788 (setq newname (concat (substring file 0 (match-beginning 0))
789 (nth 1 suffix))))
790 (cond (handler
791 (funcall handler 'dired-compress-file file))
792 ((file-symlink-p file)
793 nil)
794 ((and suffix (nth 2 suffix))
795 ;; We found an uncompression rule.
796 (if (not (dired-check-process (concat "Uncompressing " file)
797 (nth 2 suffix) file))
798 newname))
800 ;;; We don't recognize the file as compressed, so compress it.
801 ;;; Try gzip; if we don't have that, use compress.
802 (condition-case nil
803 (let ((out-name (concat file ".gz")))
804 (and (or (not (file-exists-p out-name))
805 (y-or-n-p
806 (format "File %s already exists. Really compress? "
807 out-name)))
808 (not (dired-check-process (concat "Compressing " file)
809 "gzip" "-f" file))
810 (or (file-exists-p out-name)
811 (setq out-name (concat file ".z")))
812 ;; Rename the compressed file to NEWNAME
813 ;; if it hasn't got that name already.
814 (if (and newname (not (equal newname out-name)))
815 (progn
816 (rename-file out-name newname t)
817 newname)
818 out-name)))
819 (file-error
820 (if (not (dired-check-process (concat "Compressing " file)
821 "compress" "-f" file))
822 ;; Don't use NEWNAME with `compress'.
823 (concat file ".Z"))))))))
825 (defun dired-mark-confirm (op-symbol arg)
826 ;; Request confirmation from the user that the operation described
827 ;; by OP-SYMBOL is to be performed on the marked files.
828 ;; Confirmation consists in a y-or-n question with a file list
829 ;; pop-up unless OP-SYMBOL is a member of `dired-no-confirm'.
830 ;; The files used are determined by ARG (as in dired-get-marked-files).
831 (or (eq dired-no-confirm t)
832 (memq op-symbol dired-no-confirm)
833 ;; Pass t for DISTINGUISH-ONE-MARKED so that a single file which
834 ;; is marked pops up a window. That will help the user see
835 ;; it isn't the current line file.
836 (let ((files (dired-get-marked-files t arg nil t))
837 (string (if (eq op-symbol 'compress) "Compress or uncompress"
838 (capitalize (symbol-name op-symbol)))))
839 (dired-mark-pop-up nil op-symbol files (function y-or-n-p)
840 (concat string " "
841 (dired-mark-prompt arg files) "? ")))))
843 (defun dired-map-over-marks-check (fun arg op-symbol &optional show-progress)
844 ; "Map FUN over marked files (with second ARG like in dired-map-over-marks)
845 ; and display failures.
847 ; FUN takes zero args. It returns non-nil (the offending object, e.g.
848 ; the short form of the filename) for a failure and probably logs a
849 ; detailed error explanation using function `dired-log'.
851 ; OP-SYMBOL is a symbol describing the operation performed (e.g.
852 ; `compress'). It is used with `dired-mark-pop-up' to prompt the user
853 ; (e.g. with `Compress * [2 files]? ') and to display errors (e.g.
854 ; `Failed to compress 1 of 2 files - type W to see why ("foo")')
856 ; SHOW-PROGRESS if non-nil means redisplay dired after each file."
857 (if (dired-mark-confirm op-symbol arg)
858 (let* ((total-list;; all of FUN's return values
859 (dired-map-over-marks (funcall fun) arg show-progress))
860 (total (length total-list))
861 (failures (delq nil total-list))
862 (count (length failures))
863 (string (if (eq op-symbol 'compress) "Compress or uncompress"
864 (capitalize (symbol-name op-symbol)))))
865 (if (not failures)
866 (message "%s: %d file%s."
867 string total (dired-plural-s total))
868 ;; end this bunch of errors:
869 (dired-log-summary
870 (format "Failed to %s %d of %d file%s"
871 (downcase string) count total (dired-plural-s total))
872 failures)))))
874 (defvar dired-query-alist
875 '((?\y . y) (?\040 . y) ; `y' or SPC means accept once
876 (?n . n) (?\177 . n) ; `n' or DEL skips once
877 (?! . yes) ; `!' accepts rest
878 (?q . no) (?\e . no) ; `q' or ESC skips rest
879 ;; None of these keys quit - use C-g for that.
882 ;;;###autoload
883 (defun dired-query (qs-var qs-prompt &rest qs-args)
884 ;; Query user and return nil or t.
885 ;; Store answer in symbol VAR (which must initially be bound to nil).
886 ;; Format PROMPT with ARGS.
887 ;; Binding variable help-form will help the user who types the help key.
888 (let* ((char (symbol-value qs-var))
889 (action (cdr (assoc char dired-query-alist))))
890 (cond ((eq 'yes action)
891 t) ; accept, and don't ask again
892 ((eq 'no action)
893 nil) ; skip, and don't ask again
894 (t;; no lasting effects from last time we asked - ask now
895 (let ((qprompt (concat qs-prompt
896 (if help-form
897 (format " [Type yn!q or %s] "
898 (key-description
899 (char-to-string help-char)))
900 " [Type y, n, q or !] ")))
901 result elt)
902 ;; Actually it looks nicer without cursor-in-echo-area - you can
903 ;; look at the dired buffer instead of at the prompt to decide.
904 (apply 'message qprompt qs-args)
905 (setq char (set qs-var (read-char)))
906 (while (not (setq elt (assoc char dired-query-alist)))
907 (message "Invalid char - type %c for help." help-char)
908 (ding)
909 (sit-for 1)
910 (apply 'message qprompt qs-args)
911 (setq char (set qs-var (read-char))))
912 ;; Display the question with the answer.
913 (message "%s" (concat (apply 'format qprompt qs-args)
914 (char-to-string char)))
915 (memq (cdr elt) '(t y yes)))))))
917 ;;;###autoload
918 (defun dired-do-compress (&optional arg)
919 "Compress or uncompress marked (or next ARG) files."
920 (interactive "P")
921 (dired-map-over-marks-check (function dired-compress) arg 'compress t))
923 ;; Commands for Emacs Lisp files - load and byte compile
925 (defun dired-byte-compile ()
926 ;; Return nil for success, offending file name else.
927 (let* ((filename (dired-get-filename))
928 elc-file buffer-read-only failure)
929 (condition-case err
930 (save-excursion (byte-compile-file filename))
931 (error
932 (setq failure err)))
933 (setq elc-file (byte-compile-dest-file filename))
934 (or (file-exists-p elc-file)
935 (setq failure t))
936 (if failure
937 (progn
938 (dired-log "Byte compile error for %s:\n%s\n" filename failure)
939 (dired-make-relative filename))
940 (dired-remove-file elc-file)
941 (forward-line) ; insert .elc after its .el file
942 (dired-add-file elc-file)
943 nil)))
945 ;;;###autoload
946 (defun dired-do-byte-compile (&optional arg)
947 "Byte compile marked (or next ARG) Emacs Lisp files."
948 (interactive "P")
949 (dired-map-over-marks-check (function dired-byte-compile) arg 'byte-compile t))
951 (defun dired-load ()
952 ;; Return nil for success, offending file name else.
953 (let ((file (dired-get-filename)) failure)
954 (condition-case err
955 (load file nil nil t)
956 (error (setq failure err)))
957 (if (not failure)
959 (dired-log "Load error for %s:\n%s\n" file failure)
960 (dired-make-relative file))))
962 ;;;###autoload
963 (defun dired-do-load (&optional arg)
964 "Load the marked (or next ARG) Emacs Lisp files."
965 (interactive "P")
966 (dired-map-over-marks-check (function dired-load) arg 'load t))
968 ;;;###autoload
969 (defun dired-do-redisplay (&optional arg test-for-subdir)
970 "Redisplay all marked (or next ARG) files.
971 If on a subdir line, redisplay that subdirectory. In that case,
972 a prefix arg lets you edit the `ls' switches used for the new listing.
974 Dired remembers switches specified with a prefix arg, so that reverting
975 the buffer will not reset them. However, using `dired-undo' to re-insert
976 or delete subdirectories can bypass this machinery. Hence, you sometimes
977 may have to reset some subdirectory switches after a `dired-undo'.
978 You can reset all subdirectory switches to the default using
979 \\<dired-mode-map>\\[dired-reset-subdir-switches].
980 See Info node `(emacs)Subdir switches' for more details."
981 ;; Moves point if the next ARG files are redisplayed.
982 (interactive "P\np")
983 (if (and test-for-subdir (dired-get-subdir))
984 (let* ((dir (dired-get-subdir))
985 (switches (cdr (assoc-string dir dired-switches-alist))))
986 (dired-insert-subdir
988 (when arg
989 (read-string "Switches for listing: "
990 (or switches
991 dired-subdir-switches
992 dired-actual-switches)))))
993 (message "Redisplaying...")
994 ;; message much faster than making dired-map-over-marks show progress
995 (dired-uncache
996 (if (consp dired-directory) (car dired-directory) dired-directory))
997 (dired-map-over-marks (let ((fname (dired-get-filename)))
998 (message "Redisplaying... %s" fname)
999 (dired-update-file-line fname))
1000 arg)
1001 (dired-move-to-filename)
1002 (message "Redisplaying...done")))
1004 (defun dired-reset-subdir-switches ()
1005 "Set `dired-switches-alist' to nil and revert dired buffer."
1006 (interactive)
1007 (setq dired-switches-alist nil)
1008 (revert-buffer))
1010 (defun dired-update-file-line (file)
1011 ;; Delete the current line, and insert an entry for FILE.
1012 ;; If FILE is nil, then just delete the current line.
1013 ;; Keeps any marks that may be present in column one (doing this
1014 ;; here is faster than with dired-add-entry's optional arg).
1015 ;; Does not update other dired buffers. Use dired-relist-entry for that.
1016 (beginning-of-line)
1017 (let ((char (following-char)) (opoint (point))
1018 (buffer-read-only))
1019 (delete-region (point) (progn (forward-line 1) (point)))
1020 (if file
1021 (progn
1022 (dired-add-entry file nil t)
1023 ;; Replace space by old marker without moving point.
1024 ;; Faster than goto+insdel inside a save-excursion?
1025 (subst-char-in-region opoint (1+ opoint) ?\040 char))))
1026 (dired-move-to-filename))
1028 ;;;###autoload
1029 (defun dired-add-file (filename &optional marker-char)
1030 (dired-fun-in-all-buffers
1031 (file-name-directory filename) (file-name-nondirectory filename)
1032 (function dired-add-entry) filename marker-char))
1034 (defun dired-add-entry (filename &optional marker-char relative)
1035 ;; Add a new entry for FILENAME, optionally marking it
1036 ;; with MARKER-CHAR (a character, else dired-marker-char is used).
1037 ;; Note that this adds the entry `out of order' if files sorted by
1038 ;; time, etc.
1039 ;; At least this version inserts in the right subdirectory (if present).
1040 ;; And it skips "." or ".." (see `dired-trivial-filenames').
1041 ;; Hidden subdirs are exposed if a file is added there.
1042 (setq filename (directory-file-name filename))
1043 ;; Entry is always for files, even if they happen to also be directories
1044 (let* ((opoint (point))
1045 (cur-dir (dired-current-directory))
1046 (orig-file-name filename)
1047 (directory (if relative cur-dir (file-name-directory filename)))
1048 reason)
1049 (setq filename
1050 (if relative
1051 (file-relative-name filename directory)
1052 (file-name-nondirectory filename))
1053 reason
1054 (catch 'not-found
1055 (if (string= directory cur-dir)
1056 (progn
1057 (skip-chars-forward "^\r\n")
1058 (if (eq (following-char) ?\r)
1059 (dired-unhide-subdir))
1060 ;; We are already where we should be, except when
1061 ;; point is before the subdir line or its total line.
1062 (let ((p (dired-after-subdir-garbage cur-dir)))
1063 (if (< (point) p)
1064 (goto-char p))))
1065 ;; else try to find correct place to insert
1066 (if (dired-goto-subdir directory)
1067 (progn ;; unhide if necessary
1068 (if (looking-at "\r") ;; point is at end of subdir line
1069 (dired-unhide-subdir))
1070 ;; found - skip subdir and `total' line
1071 ;; and uninteresting files like . and ..
1072 ;; This better not moves into the next subdir!
1073 (dired-goto-next-nontrivial-file))
1074 ;; not found
1075 (throw 'not-found "Subdir not found")))
1076 (let (buffer-read-only opoint)
1077 (beginning-of-line)
1078 (setq opoint (point))
1079 ;; Don't expand `.'. Show just the file name within directory.
1080 (let ((default-directory directory))
1081 (dired-insert-directory directory
1082 (concat dired-actual-switches "d")
1083 (list filename)))
1084 (goto-char opoint)
1085 ;; Put in desired marker char.
1086 (when marker-char
1087 (let ((dired-marker-char
1088 (if (integerp marker-char) marker-char dired-marker-char)))
1089 (dired-mark nil)))
1090 ;; Compensate for a bug in ange-ftp.
1091 ;; It inserts the file's absolute name, rather than
1092 ;; the relative one. That may be hard to fix since it
1093 ;; is probably controlled by something in ftp.
1094 (goto-char opoint)
1095 (let ((inserted-name (dired-get-filename 'verbatim)))
1096 (if (file-name-directory inserted-name)
1097 (let (props)
1098 (end-of-line)
1099 (forward-char (- (length inserted-name)))
1100 (setq props (text-properties-at (point)))
1101 (delete-char (length inserted-name))
1102 (let ((pt (point)))
1103 (insert filename)
1104 (set-text-properties pt (point) props))
1105 (forward-char 1))
1106 (forward-line 1)))
1107 (forward-line -1)
1108 (if dired-after-readin-hook ;; the subdir-alist is not affected...
1109 (save-excursion ;; ...so we can run it right now:
1110 (save-restriction
1111 (beginning-of-line)
1112 (narrow-to-region (point) (save-excursion
1113 (forward-line 1) (point)))
1114 (run-hooks 'dired-after-readin-hook))))
1115 (dired-move-to-filename))
1116 ;; return nil if all went well
1117 nil))
1118 (if reason ; don't move away on failure
1119 (goto-char opoint))
1120 (not reason))) ; return t on success, nil else
1122 (defun dired-after-subdir-garbage (dir)
1123 ;; Return pos of first file line of DIR, skipping header and total
1124 ;; or wildcard lines.
1125 ;; Important: never moves into the next subdir.
1126 ;; DIR is assumed to be unhidden.
1127 ;; Will probably be redefined for VMS etc.
1128 (save-excursion
1129 (or (dired-goto-subdir dir) (error "This cannot happen"))
1130 (forward-line 1)
1131 (while (and (not (eolp)) ; don't cross subdir boundary
1132 (not (dired-move-to-filename)))
1133 (forward-line 1))
1134 (point)))
1136 ;;;###autoload
1137 (defun dired-remove-file (file)
1138 (dired-fun-in-all-buffers
1139 (file-name-directory file) (file-name-nondirectory file)
1140 (function dired-remove-entry) file))
1142 (defun dired-remove-entry (file)
1143 (save-excursion
1144 (and (dired-goto-file file)
1145 (let (buffer-read-only)
1146 (delete-region (progn (beginning-of-line) (point))
1147 (save-excursion (forward-line 1) (point)))))))
1149 ;;;###autoload
1150 (defun dired-relist-file (file)
1151 "Create or update the line for FILE in all Dired buffers it would belong in."
1152 (dired-fun-in-all-buffers (file-name-directory file)
1153 (file-name-nondirectory file)
1154 (function dired-relist-entry) file))
1156 (defun dired-relist-entry (file)
1157 ;; Relist the line for FILE, or just add it if it did not exist.
1158 ;; FILE must be an absolute file name.
1159 (let (buffer-read-only marker)
1160 ;; If cursor is already on FILE's line delete-region will cause
1161 ;; save-excursion to fail because of floating makers,
1162 ;; moving point to beginning of line. Sigh.
1163 (save-excursion
1164 (and (dired-goto-file file)
1165 (delete-region (progn (beginning-of-line)
1166 (setq marker (following-char))
1167 (point))
1168 (save-excursion (forward-line 1) (point))))
1169 (setq file (directory-file-name file))
1170 (dired-add-entry file (if (eq ?\040 marker) nil marker)))))
1172 ;;; Copy, move/rename, making hard and symbolic links
1174 (defcustom dired-backup-overwrite nil
1175 "*Non-nil if Dired should ask about making backups before overwriting files.
1176 Special value `always' suppresses confirmation."
1177 :type '(choice (const :tag "off" nil)
1178 (const :tag "suppress" always)
1179 (other :tag "ask" t))
1180 :group 'dired)
1182 (defvar dired-overwrite-confirmed)
1184 (defun dired-handle-overwrite (to)
1185 ;; Save old version of file TO that is to be overwritten.
1186 ;; `dired-overwrite-confirmed' and `overwrite-backup-query' are fluid vars
1187 ;; from dired-create-files.
1188 (let (backup)
1189 (if (and dired-backup-overwrite
1190 dired-overwrite-confirmed
1191 (setq backup (car (find-backup-file-name to)))
1192 (or (eq 'always dired-backup-overwrite)
1193 (dired-query 'overwrite-backup-query
1194 "Make backup for existing file `%s'? "
1195 to)))
1196 (progn
1197 (rename-file to backup 0) ; confirm overwrite of old backup
1198 (dired-relist-entry backup)))))
1200 ;;;###autoload
1201 (defun dired-copy-file (from to ok-flag)
1202 (dired-handle-overwrite to)
1203 (dired-copy-file-recursive from to ok-flag dired-copy-preserve-time t
1204 dired-recursive-copies))
1206 (declare-function make-symbolic-link "fileio.c")
1208 (defun dired-copy-file-recursive (from to ok-flag &optional
1209 preserve-time top recursive)
1210 (let ((attrs (file-attributes from))
1211 dirfailed)
1212 (if (and recursive
1213 (eq t (car attrs))
1214 (or (eq recursive 'always)
1215 (yes-or-no-p (format "Recursive copies of %s? " from))))
1216 ;; This is a directory.
1217 (let ((mode (file-modes from))
1218 (files
1219 (condition-case err
1220 (directory-files from nil dired-re-no-dot)
1221 (file-error
1222 (push (dired-make-relative from)
1223 dired-create-files-failures)
1224 (dired-log "Copying error for %s:\n%s\n" from err)
1225 (setq dirfailed t)
1226 nil))))
1227 (if (eq recursive 'top) (setq recursive 'always)) ; Don't ask any more.
1228 (unless dirfailed
1229 (if (file-exists-p to)
1230 (or top (dired-handle-overwrite to))
1231 (condition-case err
1232 (progn
1233 (make-directory to)
1234 (set-file-modes to #o700))
1235 (file-error
1236 (push (dired-make-relative from)
1237 dired-create-files-failures)
1238 (setq files nil)
1239 (dired-log "Copying error for %s:\n%s\n" from err)))))
1240 (dolist (file files)
1241 (let ((thisfrom (expand-file-name file from))
1242 (thisto (expand-file-name file to)))
1243 ;; Catch errors copying within a directory,
1244 ;; and report them through the dired log mechanism
1245 ;; just as our caller will do for the top level files.
1246 (condition-case err
1247 (dired-copy-file-recursive
1248 thisfrom thisto
1249 ok-flag preserve-time nil recursive)
1250 (file-error
1251 (push (dired-make-relative thisfrom)
1252 dired-create-files-failures)
1253 (dired-log "Copying error for %s:\n%s\n" thisfrom err)))))
1254 (when (file-directory-p to)
1255 (set-file-modes to mode)))
1256 ;; Not a directory.
1257 (or top (dired-handle-overwrite to))
1258 (condition-case err
1259 (if (stringp (car attrs))
1260 ;; It is a symlink
1261 (make-symbolic-link (car attrs) to ok-flag)
1262 (copy-file from to ok-flag dired-copy-preserve-time))
1263 (file-date-error
1264 (push (dired-make-relative from)
1265 dired-create-files-failures)
1266 (dired-log "Can't set date on %s:\n%s\n" from err))))))
1268 ;;;###autoload
1269 (defun dired-rename-file (file newname ok-if-already-exists)
1270 (dired-handle-overwrite newname)
1271 (rename-file file newname ok-if-already-exists) ; error is caught in -create-files
1272 ;; Silently rename the visited file of any buffer visiting this file.
1273 (and (get-file-buffer file)
1274 (with-current-buffer (get-file-buffer file)
1275 (set-visited-file-name newname nil t)))
1276 (dired-remove-file file)
1277 ;; See if it's an inserted subdir, and rename that, too.
1278 (dired-rename-subdir file newname))
1280 (defun dired-rename-subdir (from-dir to-dir)
1281 (setq from-dir (file-name-as-directory from-dir)
1282 to-dir (file-name-as-directory to-dir))
1283 (dired-fun-in-all-buffers from-dir nil
1284 (function dired-rename-subdir-1) from-dir to-dir)
1285 ;; Update visited file name of all affected buffers
1286 (let ((expanded-from-dir (expand-file-name from-dir))
1287 (blist (buffer-list)))
1288 (while blist
1289 (save-excursion
1290 (set-buffer (car blist))
1291 (if (and buffer-file-name
1292 (dired-in-this-tree buffer-file-name expanded-from-dir))
1293 (let ((modflag (buffer-modified-p))
1294 (to-file (dired-replace-in-string
1295 (concat "^" (regexp-quote from-dir))
1296 to-dir
1297 buffer-file-name)))
1298 (set-visited-file-name to-file)
1299 (set-buffer-modified-p modflag))))
1300 (setq blist (cdr blist)))))
1302 (defun dired-rename-subdir-1 (dir to)
1303 ;; Rename DIR to TO in headerlines and dired-subdir-alist, if DIR or
1304 ;; one of its subdirectories is expanded in this buffer.
1305 (let ((expanded-dir (expand-file-name dir))
1306 (alist dired-subdir-alist)
1307 (elt nil))
1308 (while alist
1309 (setq elt (car alist)
1310 alist (cdr alist))
1311 (if (dired-in-this-tree (car elt) expanded-dir)
1312 ;; ELT's subdir is affected by the rename
1313 (dired-rename-subdir-2 elt dir to)))
1314 (if (equal dir default-directory)
1315 ;; if top level directory was renamed, lots of things have to be
1316 ;; updated:
1317 (progn
1318 (dired-unadvertise dir) ; we no longer dired DIR...
1319 (setq default-directory to
1320 dired-directory (expand-file-name;; this is correct
1321 ;; with and without wildcards
1322 (file-name-nondirectory dired-directory)
1323 to))
1324 (let ((new-name (file-name-nondirectory
1325 (directory-file-name dired-directory))))
1326 ;; try to rename buffer, but just leave old name if new
1327 ;; name would already exist (don't try appending "<%d>")
1328 (or (get-buffer new-name)
1329 (rename-buffer new-name)))
1330 ;; ... we dired TO now:
1331 (dired-advertise)))))
1333 (defun dired-rename-subdir-2 (elt dir to)
1334 ;; Update the headerline and dired-subdir-alist element, as well as
1335 ;; dired-switches-alist element, of directory described by
1336 ;; alist-element ELT to reflect the moving of DIR to TO. Thus, ELT
1337 ;; describes either DIR itself or a subdir of DIR.
1338 (save-excursion
1339 (let ((regexp (regexp-quote (directory-file-name dir)))
1340 (newtext (directory-file-name to))
1341 buffer-read-only)
1342 (goto-char (dired-get-subdir-min elt))
1343 ;; Update subdir headerline in buffer
1344 (if (not (looking-at dired-subdir-regexp))
1345 (error "%s not found where expected - dired-subdir-alist broken?"
1346 dir)
1347 (goto-char (match-beginning 1))
1348 (if (re-search-forward regexp (match-end 1) t)
1349 (replace-match newtext t t)
1350 (error "Expected to find `%s' in headerline of %s" dir (car elt))))
1351 ;; Update buffer-local dired-subdir-alist and dired-switches-alist
1352 (let ((cons (assoc-string (car elt) dired-switches-alist))
1353 (cur-dir (dired-normalize-subdir
1354 (dired-replace-in-string regexp newtext (car elt)))))
1355 (setcar elt cur-dir)
1356 (when cons (setcar cons cur-dir))))))
1358 ;; The basic function for half a dozen variations on cp/mv/ln/ln -s.
1359 (defun dired-create-files (file-creator operation fn-list name-constructor
1360 &optional marker-char)
1362 ;; Create a new file for each from a list of existing files. The user
1363 ;; is queried, dired buffers are updated, and at the end a success or
1364 ;; failure message is displayed
1366 ;; FILE-CREATOR must accept three args: oldfile newfile ok-if-already-exists
1368 ;; It is called for each file and must create newfile, the entry of
1369 ;; which will be added. The user will be queried if the file already
1370 ;; exists. If oldfile is removed by FILE-CREATOR (i.e, it is a
1371 ;; rename), it is FILE-CREATOR's responsibility to update dired
1372 ;; buffers. FILE-CREATOR must abort by signaling a file-error if it
1373 ;; could not create newfile. The error is caught and logged.
1375 ;; OPERATION (a capitalized string, e.g. `Copy') describes the
1376 ;; operation performed. It is used for error logging.
1378 ;; FN-LIST is the list of files to copy (full absolute file names).
1380 ;; NAME-CONSTRUCTOR returns a newfile for every oldfile, or nil to
1381 ;; skip. If it skips files for other reasons than a direct user
1382 ;; query, it is supposed to tell why (using dired-log).
1384 ;; Optional MARKER-CHAR is a character with which to mark every
1385 ;; newfile's entry, or t to use the current marker character if the
1386 ;; oldfile was marked.
1388 (let (dired-create-files-failures failures
1389 skipped (success-count 0) (total (length fn-list)))
1390 (let (to overwrite-query
1391 overwrite-backup-query) ; for dired-handle-overwrite
1392 (dolist (from fn-list)
1393 (setq to (funcall name-constructor from))
1394 (if (equal to from)
1395 (progn
1396 (setq to nil)
1397 (dired-log "Cannot %s to same file: %s\n"
1398 (downcase operation) from)))
1399 (if (not to)
1400 (setq skipped (cons (dired-make-relative from) skipped))
1401 (let* ((overwrite (file-exists-p to))
1402 (dired-overwrite-confirmed ; for dired-handle-overwrite
1403 (and overwrite
1404 (let ((help-form '(format "\
1405 Type SPC or `y' to overwrite file `%s',
1406 DEL or `n' to skip to next,
1407 ESC or `q' to not overwrite any of the remaining files,
1408 `!' to overwrite all remaining files with no more questions." to)))
1409 (dired-query 'overwrite-query
1410 "Overwrite `%s'?" to))))
1411 ;; must determine if FROM is marked before file-creator
1412 ;; gets a chance to delete it (in case of a move).
1413 (actual-marker-char
1414 (cond ((integerp marker-char) marker-char)
1415 (marker-char (dired-file-marker from)) ; slow
1416 (t nil))))
1417 (condition-case err
1418 (progn
1419 (funcall file-creator from to dired-overwrite-confirmed)
1420 (if overwrite
1421 ;; If we get here, file-creator hasn't been aborted
1422 ;; and the old entry (if any) has to be deleted
1423 ;; before adding the new entry.
1424 (dired-remove-file to))
1425 (setq success-count (1+ success-count))
1426 (message "%s: %d of %d" operation success-count total)
1427 (dired-add-file to actual-marker-char))
1428 (file-error ; FILE-CREATOR aborted
1429 (progn
1430 (push (dired-make-relative from)
1431 failures)
1432 (dired-log "%s `%s' to `%s' failed:\n%s\n"
1433 operation from to err))))))))
1434 (cond
1435 (dired-create-files-failures
1436 (setq failures (nconc failures dired-create-files-failures))
1437 (dired-log-summary
1438 (format "%s failed for %d file%s in %d requests"
1439 operation (length failures)
1440 (dired-plural-s (length failures))
1441 total)
1442 failures))
1443 (failures
1444 (dired-log-summary
1445 (format "%s failed for %d of %d file%s"
1446 operation (length failures)
1447 total (dired-plural-s total))
1448 failures))
1449 (skipped
1450 (dired-log-summary
1451 (format "%s: %d of %d file%s skipped"
1452 operation (length skipped) total
1453 (dired-plural-s total))
1454 skipped))
1456 (message "%s: %s file%s"
1457 operation success-count (dired-plural-s success-count)))))
1458 (dired-move-to-filename))
1460 (defun dired-do-create-files (op-symbol file-creator operation arg
1461 &optional marker-char op1
1462 how-to)
1463 "Create a new file for each marked file.
1464 Prompts user for target, which is a directory in which to create
1465 the new files. Target may be a plain file if only one marked
1466 file exists. The way the default for the target directory is
1467 computed depends on the value of `dired-dwim-target-directory'.
1468 OP-SYMBOL is the symbol for the operation. Function `dired-mark-pop-up'
1469 will determine whether pop-ups are appropriate for this OP-SYMBOL.
1470 FILE-CREATOR and OPERATION as in `dired-create-files'.
1471 ARG as in `dired-get-marked-files'.
1472 Optional arg MARKER-CHAR as in `dired-create-files'.
1473 Optional arg OP1 is an alternate form for OPERATION if there is
1474 only one file.
1475 Optional arg HOW-TO is used to set the value of the into-dir variable
1476 which determines how to treat target.
1477 If into-dir is set to nil then target is not regarded as a directory,
1478 there must be exactly one marked file, else error.
1479 Else if into-dir is set to a list, then target is a generalized
1480 directory (e.g. some sort of archive). The first element of into-dir
1481 must be a function with at least four arguments:
1482 operation as OPERATION above.
1483 rfn-list a list of the relative names for the marked files.
1484 fn-list a list of the absolute names for the marked files.
1485 target.
1486 The rest of into-dir are optional arguments.
1487 Else into-dir is not a list. Target is a directory.
1488 The marked file(s) are created inside the target directory.
1490 If HOW-TO is not given (or nil), then into-dir is set to true if
1491 target is a directory and otherwise to nil.
1492 Else if HOW-TO is t, then into-dir is set to nil.
1493 Else HOW-TO is assumed to be a function of one argument, target,
1494 that looks at target and returns a value for the into-dir
1495 variable. The function `dired-into-dir-with-symlinks' is provided
1496 for the case (common when creating symlinks) that symbolic
1497 links to directories are not to be considered as directories
1498 (as `file-directory-p' would if HOW-TO had been nil)."
1499 (or op1 (setq op1 operation))
1500 (let* ((fn-list (dired-get-marked-files nil arg))
1501 (rfn-list (mapcar (function dired-make-relative) fn-list))
1502 (dired-one-file ; fluid variable inside dired-create-files
1503 (and (consp fn-list) (null (cdr fn-list)) (car fn-list)))
1504 (target-dir (dired-dwim-target-directory))
1505 (default (and dired-one-file
1506 (expand-file-name (file-name-nondirectory (car fn-list))
1507 target-dir)))
1508 (target (expand-file-name ; fluid variable inside dired-create-files
1509 (dired-mark-read-file-name
1510 (concat (if dired-one-file op1 operation) " %s to: ")
1511 target-dir op-symbol arg rfn-list default)))
1512 (into-dir (cond ((null how-to)
1513 ;; Allow DOS/Windows users to change the letter
1514 ;; case of a directory. If we don't test these
1515 ;; conditions up front, file-directory-p below
1516 ;; will return t because the filesystem is
1517 ;; case-insensitive, and Emacs will try to move
1518 ;; foo -> foo/foo, which fails.
1519 (if (and (memq system-type '(ms-dos windows-nt cygwin))
1520 (eq op-symbol 'move)
1521 dired-one-file
1522 (string= (downcase
1523 (expand-file-name (car fn-list)))
1524 (downcase
1525 (expand-file-name target)))
1526 (not (string=
1527 (file-name-nondirectory (car fn-list))
1528 (file-name-nondirectory target))))
1530 (file-directory-p target)))
1531 ((eq how-to t) nil)
1532 (t (funcall how-to target)))))
1533 (if (and (consp into-dir) (functionp (car into-dir)))
1534 (apply (car into-dir) operation rfn-list fn-list target (cdr into-dir))
1535 (if (not (or dired-one-file into-dir))
1536 (error "Marked %s: target must be a directory: %s" operation target))
1537 ;; rename-file bombs when moving directories unless we do this:
1538 (or into-dir (setq target (directory-file-name target)))
1539 (dired-create-files
1540 file-creator operation fn-list
1541 (if into-dir ; target is a directory
1542 ;; This function uses fluid variable target when called
1543 ;; inside dired-create-files:
1544 (function
1545 (lambda (from)
1546 (expand-file-name (file-name-nondirectory from) target)))
1547 (function (lambda (from) target)))
1548 marker-char))))
1550 ;; Read arguments for a marked-files command that wants a file name,
1551 ;; perhaps popping up the list of marked files.
1552 ;; ARG is the prefix arg and indicates whether the files came from
1553 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
1554 ;; If the current file was used, the list has but one element and ARG
1555 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
1556 ;; DEFAULT is the default value to return if the user just hits RET;
1557 ;; if it is omitted or nil, then the name of the directory is used.
1559 (defun dired-mark-read-file-name (prompt dir op-symbol arg files
1560 &optional default)
1561 (dired-mark-pop-up
1562 nil op-symbol files
1563 (function read-file-name)
1564 (format prompt (dired-mark-prompt arg files)) dir default))
1566 (defun dired-dwim-target-directory ()
1567 ;; Try to guess which target directory the user may want.
1568 ;; If there is a dired buffer displayed in the next window, use
1569 ;; its current subdir, else use current subdir of this dired buffer.
1570 (let ((this-dir (and (eq major-mode 'dired-mode)
1571 (dired-current-directory))))
1572 ;; non-dired buffer may want to profit from this function, e.g. vm-uudecode
1573 (if dired-dwim-target
1574 (let* ((other-buf (window-buffer (next-window)))
1575 (other-dir (save-excursion
1576 (set-buffer other-buf)
1577 (and (eq major-mode 'dired-mode)
1578 (dired-current-directory)))))
1579 (or other-dir this-dir))
1580 this-dir)))
1582 ;;;###autoload
1583 (defun dired-create-directory (directory)
1584 "Create a directory called DIRECTORY."
1585 (interactive
1586 (list (read-file-name "Create directory: " (dired-current-directory))))
1587 (let* ((expanded (directory-file-name (expand-file-name directory)))
1588 (try expanded) new)
1589 ;; Find the topmost nonexistent parent dir (variable `new')
1590 (while (and try (not (file-exists-p try)) (not (equal new try)))
1591 (setq new try
1592 try (directory-file-name (file-name-directory try))))
1593 (make-directory expanded t)
1594 (when new
1595 (dired-add-file new)
1596 (dired-move-to-filename))))
1598 (defun dired-into-dir-with-symlinks (target)
1599 (and (file-directory-p target)
1600 (not (file-symlink-p target))))
1601 ;; This may not always be what you want, especially if target is your
1602 ;; home directory and it happens to be a symbolic link, as is often the
1603 ;; case with NFS and automounters. Or if you want to make symlinks
1604 ;; into directories that themselves are only symlinks, also quite
1605 ;; common.
1607 ;; So we don't use this function as value for HOW-TO in
1608 ;; dired-do-symlink, which has the minor disadvantage of
1609 ;; making links *into* a symlinked-dir, when you really wanted to
1610 ;; *overwrite* that symlink. In that (rare, I guess) case, you'll
1611 ;; just have to remove that symlink by hand before making your marked
1612 ;; symlinks.
1614 (defvar dired-copy-how-to-fn nil
1615 "nil or a function used by `dired-do-copy' to determine target.
1616 See HOW-TO argument for `dired-do-create-files'.")
1618 ;;;###autoload
1619 (defun dired-do-copy (&optional arg)
1620 "Copy all marked (or next ARG) files, or copy the current file.
1621 This normally preserves the last-modified date when copying.
1622 When operating on just the current file, you specify the new name.
1623 When operating on multiple or marked files, you specify a directory,
1624 and new copies of these files are made in that directory
1625 with the same names that the files currently have. The default
1626 suggested for the target directory depends on the value of
1627 `dired-dwim-target', which see.
1629 This command copies symbolic links by creating new ones,
1630 like `cp -d'."
1631 (interactive "P")
1632 (let ((dired-recursive-copies dired-recursive-copies))
1633 (dired-do-create-files 'copy (function dired-copy-file)
1634 "Copy"
1635 arg dired-keep-marker-copy
1636 nil dired-copy-how-to-fn)))
1638 ;;;###autoload
1639 (defun dired-do-symlink (&optional arg)
1640 "Make symbolic links to current file or all marked (or next ARG) files.
1641 When operating on just the current file, you specify the new name.
1642 When operating on multiple or marked files, you specify a directory
1643 and new symbolic links are made in that directory
1644 with the same names that the files currently have. The default
1645 suggested for the target directory depends on the value of
1646 `dired-dwim-target', which see.
1648 For relative symlinks, use \\[dired-do-relsymlink]."
1649 (interactive "P")
1650 (dired-do-create-files 'symlink (function make-symbolic-link)
1651 "Symlink" arg dired-keep-marker-symlink))
1653 ;;;###autoload
1654 (defun dired-do-hardlink (&optional arg)
1655 "Add names (hard links) current file or all marked (or next ARG) files.
1656 When operating on just the current file, you specify the new name.
1657 When operating on multiple or marked files, you specify a directory
1658 and new hard links are made in that directory
1659 with the same names that the files currently have. The default
1660 suggested for the target directory depends on the value of
1661 `dired-dwim-target', which see."
1662 (interactive "P")
1663 (dired-do-create-files 'hardlink (function dired-hardlink)
1664 "Hardlink" arg dired-keep-marker-hardlink))
1666 (defun dired-hardlink (file newname &optional ok-if-already-exists)
1667 (dired-handle-overwrite newname)
1668 ;; error is caught in -create-files
1669 (add-name-to-file file newname ok-if-already-exists)
1670 ;; Update the link count
1671 (dired-relist-file file))
1673 ;;;###autoload
1674 (defun dired-do-rename (&optional arg)
1675 "Rename current file or all marked (or next ARG) files.
1676 When renaming just the current file, you specify the new name.
1677 When renaming multiple or marked files, you specify a directory.
1678 This command also renames any buffers that are visiting the files.
1679 The default suggested for the target directory depends on the value
1680 of `dired-dwim-target', which see."
1681 (interactive "P")
1682 (dired-do-create-files 'move (function dired-rename-file)
1683 "Move" arg dired-keep-marker-rename "Rename"))
1684 ;;;###end dired-cp.el
1686 ;;; 5K
1687 ;;;###begin dired-re.el
1688 (defun dired-do-create-files-regexp
1689 (file-creator operation arg regexp newname &optional whole-name marker-char)
1690 ;; Create a new file for each marked file using regexps.
1691 ;; FILE-CREATOR and OPERATION as in dired-create-files.
1692 ;; ARG as in dired-get-marked-files.
1693 ;; Matches each marked file against REGEXP and constructs the new
1694 ;; filename from NEWNAME (like in function replace-match).
1695 ;; Optional arg WHOLE-NAME means match/replace the whole file name
1696 ;; instead of only the non-directory part of the file.
1697 ;; Optional arg MARKER-CHAR as in dired-create-files.
1698 (let* ((fn-list (dired-get-marked-files nil arg))
1699 (fn-count (length fn-list))
1700 (operation-prompt (concat operation " `%s' to `%s'?"))
1701 (rename-regexp-help-form (format "\
1702 Type SPC or `y' to %s one match, DEL or `n' to skip to next,
1703 `!' to %s all remaining matches with no more questions."
1704 (downcase operation)
1705 (downcase operation)))
1706 (regexp-name-constructor
1707 ;; Function to construct new filename using REGEXP and NEWNAME:
1708 (if whole-name ; easy (but rare) case
1709 (function
1710 (lambda (from)
1711 (let ((to (dired-string-replace-match regexp from newname))
1712 ;; must bind help-form directly around call to
1713 ;; dired-query
1714 (help-form rename-regexp-help-form))
1715 (if to
1716 (and (dired-query 'rename-regexp-query
1717 operation-prompt
1718 from
1721 (dired-log "%s: %s did not match regexp %s\n"
1722 operation from regexp)))))
1723 ;; not whole-name, replace non-directory part only
1724 (function
1725 (lambda (from)
1726 (let* ((new (dired-string-replace-match
1727 regexp (file-name-nondirectory from) newname))
1728 (to (and new ; nil means there was no match
1729 (expand-file-name new
1730 (file-name-directory from))))
1731 (help-form rename-regexp-help-form))
1732 (if to
1733 (and (dired-query 'rename-regexp-query
1734 operation-prompt
1735 (dired-make-relative from)
1736 (dired-make-relative to))
1738 (dired-log "%s: %s did not match regexp %s\n"
1739 operation (file-name-nondirectory from) regexp)))))))
1740 rename-regexp-query)
1741 (dired-create-files
1742 file-creator operation fn-list regexp-name-constructor marker-char)))
1744 (defun dired-mark-read-regexp (operation)
1745 ;; Prompt user about performing OPERATION.
1746 ;; Read and return list of: regexp newname arg whole-name.
1747 (let* ((whole-name
1748 (equal 0 (prefix-numeric-value current-prefix-arg)))
1749 (arg
1750 (if whole-name nil current-prefix-arg))
1751 (regexp
1752 (dired-read-regexp
1753 (concat (if whole-name "Abs. " "") operation " from (regexp): ")))
1754 (newname
1755 (read-string
1756 (concat (if whole-name "Abs. " "") operation " " regexp " to: "))))
1757 (list regexp newname arg whole-name)))
1759 ;;;###autoload
1760 (defun dired-do-rename-regexp (regexp newname &optional arg whole-name)
1761 "Rename selected files whose names match REGEXP to NEWNAME.
1763 With non-zero prefix argument ARG, the command operates on the next ARG
1764 files. Otherwise, it operates on all the marked files, or the current
1765 file if none are marked.
1767 As each match is found, the user must type a character saying
1768 what to do with it. For directions, type \\[help-command] at that time.
1769 NEWNAME may contain \\=\\<n> or \\& as in `query-replace-regexp'.
1770 REGEXP defaults to the last regexp used.
1772 With a zero prefix arg, renaming by regexp affects the absolute file name.
1773 Normally, only the non-directory part of the file name is used and changed."
1774 (interactive (dired-mark-read-regexp "Rename"))
1775 (dired-do-create-files-regexp
1776 (function dired-rename-file)
1777 "Rename" arg regexp newname whole-name dired-keep-marker-rename))
1779 ;;;###autoload
1780 (defun dired-do-copy-regexp (regexp newname &optional arg whole-name)
1781 "Copy selected files whose names match REGEXP to NEWNAME.
1782 See function `dired-do-rename-regexp' for more info."
1783 (interactive (dired-mark-read-regexp "Copy"))
1784 (let ((dired-recursive-copies nil)) ; No recursive copies.
1785 (dired-do-create-files-regexp
1786 (function dired-copy-file)
1787 (if dired-copy-preserve-time "Copy [-p]" "Copy")
1788 arg regexp newname whole-name dired-keep-marker-copy)))
1790 ;;;###autoload
1791 (defun dired-do-hardlink-regexp (regexp newname &optional arg whole-name)
1792 "Hardlink selected files whose names match REGEXP to NEWNAME.
1793 See function `dired-do-rename-regexp' for more info."
1794 (interactive (dired-mark-read-regexp "HardLink"))
1795 (dired-do-create-files-regexp
1796 (function add-name-to-file)
1797 "HardLink" arg regexp newname whole-name dired-keep-marker-hardlink))
1799 ;;;###autoload
1800 (defun dired-do-symlink-regexp (regexp newname &optional arg whole-name)
1801 "Symlink selected files whose names match REGEXP to NEWNAME.
1802 See function `dired-do-rename-regexp' for more info."
1803 (interactive (dired-mark-read-regexp "SymLink"))
1804 (dired-do-create-files-regexp
1805 (function make-symbolic-link)
1806 "SymLink" arg regexp newname whole-name dired-keep-marker-symlink))
1808 (defun dired-create-files-non-directory
1809 (file-creator basename-constructor operation arg)
1810 ;; Perform FILE-CREATOR on the non-directory part of marked files
1811 ;; using function BASENAME-CONSTRUCTOR, with query for each file.
1812 ;; OPERATION like in dired-create-files, ARG as in dired-get-marked-files.
1813 (let (rename-non-directory-query)
1814 (dired-create-files
1815 file-creator
1816 operation
1817 (dired-get-marked-files nil arg)
1818 (function
1819 (lambda (from)
1820 (let ((to (concat (file-name-directory from)
1821 (funcall basename-constructor
1822 (file-name-nondirectory from)))))
1823 (and (let ((help-form (format "\
1824 Type SPC or `y' to %s one file, DEL or `n' to skip to next,
1825 `!' to %s all remaining matches with no more questions."
1826 (downcase operation)
1827 (downcase operation))))
1828 (dired-query 'rename-non-directory-query
1829 (concat operation " `%s' to `%s'")
1830 (dired-make-relative from)
1831 (dired-make-relative to)))
1832 to))))
1833 dired-keep-marker-rename)))
1835 (defun dired-rename-non-directory (basename-constructor operation arg)
1836 (dired-create-files-non-directory
1837 (function dired-rename-file)
1838 basename-constructor operation arg))
1840 ;;;###autoload
1841 (defun dired-upcase (&optional arg)
1842 "Rename all marked (or next ARG) files to upper case."
1843 (interactive "P")
1844 (dired-rename-non-directory (function upcase) "Rename upcase" arg))
1846 ;;;###autoload
1847 (defun dired-downcase (&optional arg)
1848 "Rename all marked (or next ARG) files to lower case."
1849 (interactive "P")
1850 (dired-rename-non-directory (function downcase) "Rename downcase" arg))
1852 ;;;###end dired-re.el
1854 ;;; 13K
1855 ;;;###begin dired-ins.el
1857 ;;;###autoload
1858 (defun dired-maybe-insert-subdir (dirname &optional
1859 switches no-error-if-not-dir-p)
1860 "Insert this subdirectory into the same dired buffer.
1861 If it is already present, just move to it (type \\[dired-do-redisplay] to refresh),
1862 else inserts it at its natural place (as `ls -lR' would have done).
1863 With a prefix arg, you may edit the ls switches used for this listing.
1864 You can add `R' to the switches to expand the whole tree starting at
1865 this subdirectory.
1866 This function takes some pains to conform to `ls -lR' output.
1868 Dired remembers switches specified with a prefix arg, so that reverting
1869 the buffer will not reset them. However, using `dired-undo' to re-insert
1870 or delete subdirectories can bypass this machinery. Hence, you sometimes
1871 may have to reset some subdirectory switches after a `dired-undo'.
1872 You can reset all subdirectory switches to the default using
1873 \\<dired-mode-map>\\[dired-reset-subdir-switches].
1874 See Info node `(emacs)Subdir switches' for more details."
1875 (interactive
1876 (list (dired-get-filename)
1877 (if current-prefix-arg
1878 (read-string "Switches for listing: "
1879 (or dired-subdir-switches dired-actual-switches)))))
1880 (let ((opoint (point)))
1881 ;; We don't need a marker for opoint as the subdir is always
1882 ;; inserted *after* opoint.
1883 (setq dirname (file-name-as-directory dirname))
1884 (or (and (not switches)
1885 (dired-goto-subdir dirname))
1886 (dired-insert-subdir dirname switches no-error-if-not-dir-p))
1887 ;; Push mark so that it's easy to find back. Do this after the
1888 ;; insert message so that the user sees the `Mark set' message.
1889 (push-mark opoint)))
1891 ;;;###autoload
1892 (defun dired-insert-subdir (dirname &optional switches no-error-if-not-dir-p)
1893 "Insert this subdirectory into the same dired buffer.
1894 If it is already present, overwrites previous entry,
1895 else inserts it at its natural place (as `ls -lR' would have done).
1896 With a prefix arg, you may edit the `ls' switches used for this listing.
1897 You can add `R' to the switches to expand the whole tree starting at
1898 this subdirectory.
1899 This function takes some pains to conform to `ls -lR' output."
1900 ;; NO-ERROR-IF-NOT-DIR-P needed for special filesystems like
1901 ;; Prospero where dired-ls does the right thing, but
1902 ;; file-directory-p has not been redefined.
1903 (interactive
1904 (list (dired-get-filename)
1905 (if current-prefix-arg
1906 (read-string "Switches for listing: "
1907 (or dired-subdir-switches dired-actual-switches)))))
1908 (setq dirname (file-name-as-directory (expand-file-name dirname)))
1909 (or no-error-if-not-dir-p
1910 (file-directory-p dirname)
1911 (error "Attempt to insert a non-directory: %s" dirname))
1912 (let ((elt (assoc dirname dired-subdir-alist))
1913 (cons (assoc-string dirname dired-switches-alist))
1914 (modflag (buffer-modified-p))
1915 (old-switches switches)
1916 switches-have-R mark-alist case-fold-search buffer-read-only)
1917 (and (not switches) cons (setq switches (cdr cons)))
1918 (dired-insert-subdir-validate dirname switches)
1919 ;; case-fold-search is nil now, so we can test for capital `R':
1920 (if (setq switches-have-R (and switches (string-match "R" switches)))
1921 ;; avoid duplicated subdirs
1922 (setq mark-alist (dired-kill-tree dirname t)))
1923 (if elt
1924 ;; If subdir is already present, remove it and remember its marks
1925 (setq mark-alist (nconc (dired-insert-subdir-del elt) mark-alist))
1926 (dired-insert-subdir-newpos dirname)) ; else compute new position
1927 (dired-insert-subdir-doupdate
1928 dirname elt (dired-insert-subdir-doinsert dirname switches))
1929 (when old-switches
1930 (if cons
1931 (setcdr cons switches)
1932 (push (cons dirname switches) dired-switches-alist)))
1933 (when switches-have-R
1934 (dired-build-subdir-alist switches)
1935 (setq switches (dired-replace-in-string "R" "" switches))
1936 (dolist (cur-ass dired-subdir-alist)
1937 (let ((cur-dir (car cur-ass)))
1938 (and (dired-in-this-tree cur-dir dirname)
1939 (let ((cur-cons (assoc-string cur-dir dired-switches-alist)))
1940 (if cur-cons
1941 (setcdr cur-cons switches)
1942 (push (cons cur-dir switches) dired-switches-alist)))))))
1943 (dired-initial-position dirname)
1944 (save-excursion (dired-mark-remembered mark-alist))
1945 (restore-buffer-modified-p modflag)))
1947 ;; This is a separate function for dired-vms.
1948 (defun dired-insert-subdir-validate (dirname &optional switches)
1949 ;; Check that it is valid to insert DIRNAME with SWITCHES.
1950 ;; Signal an error if invalid (e.g. user typed `i' on `..').
1951 (or (dired-in-this-tree dirname (expand-file-name default-directory))
1952 (error "%s: not in this directory tree" dirname))
1953 (let ((real-switches (or switches dired-subdir-switches)))
1954 (when real-switches
1955 (let (case-fold-search)
1956 (mapcar
1957 (function
1958 (lambda (x)
1959 (or (eq (null (string-match x real-switches))
1960 (null (string-match x dired-actual-switches)))
1961 (error
1962 "Can't have dirs with and without -%s switches together" x))))
1963 ;; all switches that make a difference to dired-get-filename:
1964 '("F" "b"))))))
1966 (defun dired-alist-add (dir new-marker)
1967 ;; Add new DIR at NEW-MARKER. Sort alist.
1968 (dired-alist-add-1 dir new-marker)
1969 (dired-alist-sort))
1971 (defun dired-alist-sort ()
1972 ;; Keep the alist sorted on buffer position.
1973 (setq dired-subdir-alist
1974 (sort dired-subdir-alist
1975 (function (lambda (elt1 elt2)
1976 (> (dired-get-subdir-min elt1)
1977 (dired-get-subdir-min elt2)))))))
1979 (defun dired-kill-tree (dirname &optional remember-marks kill-root)
1980 "Kill all proper subdirs of DIRNAME, excluding DIRNAME itself.
1981 Interactively, you can kill DIRNAME as well by using a prefix argument.
1982 In interactive use, the command prompts for DIRNAME.
1984 When called from Lisp, if REMEMBER-MARKS is non-nil, return an alist
1985 of marked files. If KILL-ROOT is non-nil, kill DIRNAME as well."
1986 (interactive "DKill tree below directory: \ni\nP")
1987 (setq dirname (file-name-as-directory (expand-file-name dirname)))
1988 (let ((s-alist dired-subdir-alist) dir m-alist)
1989 (while s-alist
1990 (setq dir (car (car s-alist))
1991 s-alist (cdr s-alist))
1992 (and (or kill-root (not (string-equal dir dirname)))
1993 (dired-in-this-tree dir dirname)
1994 (dired-goto-subdir dir)
1995 (setq m-alist (nconc (dired-kill-subdir remember-marks) m-alist))))
1996 m-alist))
1998 (defun dired-insert-subdir-newpos (new-dir)
1999 ;; Find pos for new subdir, according to tree order.
2000 ;;(goto-char (point-max))
2001 (let ((alist dired-subdir-alist) elt dir pos new-pos)
2002 (while alist
2003 (setq elt (car alist)
2004 alist (cdr alist)
2005 dir (car elt)
2006 pos (dired-get-subdir-min elt))
2007 (if (dired-tree-lessp dir new-dir)
2008 ;; Insert NEW-DIR after DIR
2009 (setq new-pos (dired-get-subdir-max elt)
2010 alist nil)))
2011 (goto-char new-pos))
2012 ;; want a separating newline between subdirs
2013 (or (eobp)
2014 (forward-line -1))
2015 (insert "\n")
2016 (point))
2018 (defun dired-insert-subdir-del (element)
2019 ;; Erase an already present subdir (given by ELEMENT) from buffer.
2020 ;; Move to that buffer position. Return a mark-alist.
2021 (let ((begin-marker (dired-get-subdir-min element)))
2022 (goto-char begin-marker)
2023 ;; Are at beginning of subdir (and inside it!). Now determine its end:
2024 (goto-char (dired-subdir-max))
2025 (or (eobp);; want a separating newline _between_ subdirs:
2026 (forward-char -1))
2027 (prog1
2028 (dired-remember-marks begin-marker (point))
2029 (delete-region begin-marker (point)))))
2031 (defun dired-insert-subdir-doinsert (dirname switches)
2032 ;; Insert ls output after point.
2033 ;; Return the boundary of the inserted text (as list of BEG and END).
2034 (save-excursion
2035 (let ((begin (point)))
2036 (let ((dired-actual-switches
2037 (or switches
2038 dired-subdir-switches
2039 (dired-replace-in-string "R" "" dired-actual-switches))))
2040 (if (equal dirname (car (car (last dired-subdir-alist))))
2041 ;; If doing the top level directory of the buffer,
2042 ;; redo it as specified in dired-directory.
2043 (dired-readin-insert)
2044 (dired-insert-directory dirname dired-actual-switches nil nil t)))
2045 (list begin (point)))))
2047 (defun dired-insert-subdir-doupdate (dirname elt beg-end)
2048 ;; Point is at the correct subdir alist position for ELT,
2049 ;; BEG-END is the subdir-region (as list of begin and end).
2050 (if elt ; subdir was already present
2051 ;; update its position (should actually be unchanged)
2052 (set-marker (dired-get-subdir-min elt) (point-marker))
2053 (dired-alist-add dirname (point-marker)))
2054 ;; The hook may depend on the subdir-alist containing the just
2055 ;; inserted subdir, so run it after dired-alist-add:
2056 (if dired-after-readin-hook
2057 (save-excursion
2058 (let ((begin (nth 0 beg-end))
2059 (end (nth 1 beg-end)))
2060 (goto-char begin)
2061 (save-restriction
2062 (narrow-to-region begin end)
2063 ;; hook may add or delete lines, but the subdir boundary
2064 ;; marker floats
2065 (run-hooks 'dired-after-readin-hook))))))
2067 (defun dired-tree-lessp (dir1 dir2)
2068 ;; Lexicographic order on file name components, like `ls -lR':
2069 ;; DIR1 < DIR2 if DIR1 comes *before* DIR2 in an `ls -lR' listing,
2070 ;; i.e., if DIR1 is a (grand)parent dir of DIR2,
2071 ;; or DIR1 and DIR2 are in the same parentdir and their last
2072 ;; components are string-lessp.
2073 ;; Thus ("/usr/" "/usr/bin") and ("/usr/a/" "/usr/b/") are tree-lessp.
2074 ;; string-lessp could arguably be replaced by file-newer-than-file-p
2075 ;; if dired-actual-switches contained `t'.
2076 (setq dir1 (file-name-as-directory dir1)
2077 dir2 (file-name-as-directory dir2))
2078 (let ((components-1 (dired-split "/" dir1))
2079 (components-2 (dired-split "/" dir2)))
2080 (while (and components-1
2081 components-2
2082 (equal (car components-1) (car components-2)))
2083 (setq components-1 (cdr components-1)
2084 components-2 (cdr components-2)))
2085 (let ((c1 (car components-1))
2086 (c2 (car components-2)))
2088 (cond ((and c1 c2)
2089 (string-lessp c1 c2))
2090 ((and (null c1) (null c2))
2091 nil) ; they are equal, not lessp
2092 ((null c1) ; c2 is a subdir of c1: c1<c2
2094 ((null c2) ; c1 is a subdir of c2: c1>c2
2095 nil)
2096 (t (error "This can't happen"))))))
2098 ;; There should be a builtin split function - inverse to mapconcat.
2099 (defun dired-split (pat str &optional limit)
2100 "Splitting on regexp PAT, turn string STR into a list of substrings.
2101 Optional third arg LIMIT (>= 1) is a limit to the length of the
2102 resulting list.
2103 Thus, if SEP is a regexp that only matches itself,
2105 (mapconcat 'identity (dired-split SEP STRING) SEP)
2107 is always equal to STRING."
2108 (let* ((start (string-match pat str))
2109 (result (list (substring str 0 start)))
2110 (count 1)
2111 (end (if start (match-end 0))))
2112 (if end ; else nothing left
2113 (while (and (or (not (integerp limit))
2114 (< count limit))
2115 (string-match pat str end))
2116 (setq start (match-beginning 0)
2117 count (1+ count)
2118 result (cons (substring str end start) result)
2119 end (match-end 0)
2120 start end)
2122 (if (and (or (not (integerp limit))
2123 (< count limit))
2124 end) ; else nothing left
2125 (setq result
2126 (cons (substring str end) result)))
2127 (nreverse result)))
2129 ;;; moving by subdirectories
2131 ;;;###autoload
2132 (defun dired-prev-subdir (arg &optional no-error-if-not-found no-skip)
2133 "Go to previous subdirectory, regardless of level.
2134 When called interactively and not on a subdir line, go to this subdir's line."
2135 ;;(interactive "p")
2136 (interactive
2137 (list (if current-prefix-arg
2138 (prefix-numeric-value current-prefix-arg)
2139 ;; if on subdir start already, don't stay there!
2140 (if (dired-get-subdir) 1 0))))
2141 (dired-next-subdir (- arg) no-error-if-not-found no-skip))
2143 (defun dired-subdir-min ()
2144 (save-excursion
2145 (if (not (dired-prev-subdir 0 t t))
2146 (error "Not in a subdir!")
2147 (point))))
2149 ;;;###autoload
2150 (defun dired-goto-subdir (dir)
2151 "Go to end of header line of DIR in this dired buffer.
2152 Return value of point on success, otherwise return nil.
2153 The next char is either \\n, or \\r if DIR is hidden."
2154 (interactive
2155 (prog1 ; let push-mark display its message
2156 (list (expand-file-name
2157 (completing-read "Goto in situ directory: " ; prompt
2158 dired-subdir-alist ; table
2159 nil ; predicate
2160 t ; require-match
2161 (dired-current-directory))))
2162 (push-mark)))
2163 (setq dir (file-name-as-directory dir))
2164 (let ((elt (assoc dir dired-subdir-alist)))
2165 (and elt
2166 (goto-char (dired-get-subdir-min elt))
2167 ;; dired-subdir-hidden-p and dired-add-entry depend on point being
2168 ;; at either \r or \n after this function succeeds.
2169 (progn (skip-chars-forward "^\r\n")
2170 (point)))))
2172 ;;;###autoload
2173 (defun dired-mark-subdir-files ()
2174 "Mark all files except `.' and `..' in current subdirectory.
2175 If the Dired buffer shows multiple directories, this command
2176 marks the files listed in the subdirectory that point is in."
2177 (interactive)
2178 (let ((p-min (dired-subdir-min)))
2179 (dired-mark-files-in-region p-min (dired-subdir-max))))
2181 ;;;###autoload
2182 (defun dired-kill-subdir (&optional remember-marks)
2183 "Remove all lines of current subdirectory.
2184 Lower levels are unaffected."
2185 ;; With optional REMEMBER-MARKS, return a mark-alist.
2186 (interactive)
2187 (let* ((beg (dired-subdir-min))
2188 (end (dired-subdir-max))
2189 (modflag (buffer-modified-p))
2190 (cur-dir (dired-current-directory))
2191 (cons (assoc-string cur-dir dired-switches-alist))
2192 buffer-read-only)
2193 (if (equal cur-dir default-directory)
2194 (error "Attempt to kill top level directory"))
2195 (prog1
2196 (if remember-marks (dired-remember-marks beg end))
2197 (delete-region beg end)
2198 (if (eobp) ; don't leave final blank line
2199 (delete-char -1))
2200 (dired-unsubdir cur-dir)
2201 (when cons
2202 (setq dired-switches-alist (delete cons dired-switches-alist)))
2203 (restore-buffer-modified-p modflag))))
2205 (defun dired-unsubdir (dir)
2206 ;; Remove DIR from the alist
2207 (setq dired-subdir-alist
2208 (delq (assoc dir dired-subdir-alist) dired-subdir-alist)))
2210 ;;;###autoload
2211 (defun dired-tree-up (arg)
2212 "Go up ARG levels in the dired tree."
2213 (interactive "p")
2214 (let ((dir (dired-current-directory)))
2215 (while (>= arg 1)
2216 (setq arg (1- arg)
2217 dir (file-name-directory (directory-file-name dir))))
2218 ;;(setq dir (expand-file-name dir))
2219 (or (dired-goto-subdir dir)
2220 (error "Cannot go up to %s - not in this tree" dir))))
2222 ;;;###autoload
2223 (defun dired-tree-down ()
2224 "Go down in the dired tree."
2225 (interactive)
2226 (let ((dir (dired-current-directory)) ; has slash
2227 pos case-fold-search) ; filenames are case sensitive
2228 (let ((rest (reverse dired-subdir-alist)) elt)
2229 (while rest
2230 (setq elt (car rest)
2231 rest (cdr rest))
2232 (if (dired-in-this-tree (directory-file-name (car elt)) dir)
2233 (setq rest nil
2234 pos (dired-goto-subdir (car elt))))))
2235 (if pos
2236 (goto-char pos)
2237 (error "At the bottom"))))
2239 ;;; hiding
2241 (defun dired-unhide-subdir ()
2242 (let (buffer-read-only)
2243 (subst-char-in-region (dired-subdir-min) (dired-subdir-max) ?\r ?\n)))
2245 (defun dired-hide-check ()
2246 (or selective-display
2247 (error "selective-display must be t for subdir hiding to work!")))
2249 (defun dired-subdir-hidden-p (dir)
2250 (and selective-display
2251 (save-excursion
2252 (dired-goto-subdir dir)
2253 (looking-at "\r"))))
2255 ;;;###autoload
2256 (defun dired-hide-subdir (arg)
2257 "Hide or unhide the current subdirectory and move to next directory.
2258 Optional prefix arg is a repeat factor.
2259 Use \\[dired-hide-all] to (un)hide all directories."
2260 (interactive "p")
2261 (dired-hide-check)
2262 (let ((modflag (buffer-modified-p)))
2263 (while (>= (setq arg (1- arg)) 0)
2264 (let* ((cur-dir (dired-current-directory))
2265 (hidden-p (dired-subdir-hidden-p cur-dir))
2266 (elt (assoc cur-dir dired-subdir-alist))
2267 (end-pos (1- (dired-get-subdir-max elt)))
2268 buffer-read-only)
2269 ;; keep header line visible, hide rest
2270 (goto-char (dired-get-subdir-min elt))
2271 (skip-chars-forward "^\n\r")
2272 (if hidden-p
2273 (subst-char-in-region (point) end-pos ?\r ?\n)
2274 (subst-char-in-region (point) end-pos ?\n ?\r)))
2275 (dired-next-subdir 1 t))
2276 (restore-buffer-modified-p modflag)))
2278 ;;;###autoload
2279 (defun dired-hide-all (arg)
2280 "Hide all subdirectories, leaving only their header lines.
2281 If there is already something hidden, make everything visible again.
2282 Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."
2283 (interactive "P")
2284 (dired-hide-check)
2285 (let ((modflag (buffer-modified-p))
2286 buffer-read-only)
2287 (if (save-excursion
2288 (goto-char (point-min))
2289 (search-forward "\r" nil t))
2290 ;; unhide - bombs on \r in filenames
2291 (subst-char-in-region (point-min) (point-max) ?\r ?\n)
2292 ;; hide
2293 (let ((pos (point-max)) ; pos of end of last directory
2294 (alist dired-subdir-alist))
2295 (while alist ; while there are dirs before pos
2296 (subst-char-in-region (dired-get-subdir-min (car alist)) ; pos of prev dir
2297 (save-excursion
2298 (goto-char pos) ; current dir
2299 ;; we're somewhere on current dir's line
2300 (forward-line -1)
2301 (point))
2302 ?\n ?\r)
2303 (setq pos (dired-get-subdir-min (car alist))) ; prev dir gets current dir
2304 (setq alist (cdr alist)))))
2305 (restore-buffer-modified-p modflag)))
2307 ;;;###end dired-ins.el
2310 ;; Functions for searching in tags style among marked files.
2312 ;;;###autoload
2313 (defun dired-do-search (regexp)
2314 "Search through all marked files for a match for REGEXP.
2315 Stops when a match is found.
2316 To continue searching for next match, use command \\[tags-loop-continue]."
2317 (interactive "sSearch marked files (regexp): ")
2318 (tags-search regexp '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2320 ;;;###autoload
2321 (defun dired-do-query-replace-regexp (from to &optional delimited)
2322 "Do `query-replace-regexp' of FROM with TO, on all marked files.
2323 Third arg DELIMITED (prefix arg) means replace only word-delimited matches.
2324 If you exit (\\[keyboard-quit], RET or q), you can resume the query replace
2325 with the command \\[tags-loop-continue]."
2326 (interactive
2327 (let ((common
2328 (query-replace-read-args
2329 "Query replace regexp in marked files" t t)))
2330 (list (nth 0 common) (nth 1 common) (nth 2 common))))
2331 (dolist (file (dired-get-marked-files nil nil 'dired-nondirectory-p))
2332 (let ((buffer (get-file-buffer file)))
2333 (if (and buffer (with-current-buffer buffer
2334 buffer-read-only))
2335 (error "File `%s' is visited read-only" file))))
2336 (tags-query-replace from to delimited
2337 '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2339 (defun dired-nondirectory-p (file)
2340 (not (file-directory-p file)))
2342 ;;;###autoload
2343 (defun dired-show-file-type (file &optional deref-symlinks)
2344 "Print the type of FILE, according to the `file' command.
2345 If FILE is a symbolic link and the optional argument DEREF-SYMLINKS is
2346 true then the type of the file linked to by FILE is printed instead."
2347 (interactive (list (dired-get-filename t) current-prefix-arg))
2348 (with-temp-buffer
2349 (if deref-symlinks
2350 (call-process "file" nil t t "-L" "--" file)
2351 (call-process "file" nil t t "--" file))
2352 (when (bolp)
2353 (backward-delete-char 1))
2354 (message "%s" (buffer-string))))
2356 (provide 'dired-aux)
2358 ;;; arch-tag: 4b508de9-a153-423d-8d3f-a1bbd86f4f60
2359 ;;; dired-aux.el ends here