* lisp/mouse.el (mouse-buffer-menu-mode-groups): Add a "GDB" group.
[emacs.git] / lisp / dired-aux.el
blob6f33831eb38f21b46692d4f1d86443a256daccb9
1 ;;; dired-aux.el --- less commonly used parts of dired
3 ;; Copyright (C) 1985-1986, 1992, 1994, 1998, 2000-2011
4 ;; Free Software Foundation, Inc.
6 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>.
7 ;; Maintainer: FSF
8 ;; Keywords: files
9 ;; Package: emacs
11 ;; This file is part of GNU Emacs.
13 ;; GNU Emacs is free software: you can redistribute it and/or modify
14 ;; it under the terms of the GNU General Public License as published by
15 ;; the Free Software Foundation, either version 3 of the License, or
16 ;; (at your option) any later version.
18 ;; GNU Emacs is distributed in the hope that it will be useful,
19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ;; GNU General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
26 ;;; Commentary:
28 ;; The parts of dired mode not normally used. This is a space-saving hack
29 ;; to avoid having to load a large mode when all that's wanted are a few
30 ;; functions.
32 ;; Rewritten in 1990/1991 to add tree features, file marking and
33 ;; sorting by Sebastian Kremer <sk@thp.uni-koeln.de>.
34 ;; Finished up by rms in 1992.
36 ;;; Code:
38 ;; We need macros in dired.el to compile properly,
39 ;; and we call subroutines in it too.
40 (require 'dired)
42 (defvar dired-create-files-failures nil
43 "Variable where `dired-create-files' records failing file names.
44 Functions that operate recursively can store additional names
45 into this list; they also should call `dired-log' to log the errors.")
47 ;;; 15K
48 ;;;###begin dired-cmd.el
49 ;; Diffing and compressing
51 (defconst dired-star-subst-regexp "\\(^\\|[ \t]\\)\\*\\([ \t]\\|$\\)")
52 (defconst dired-quark-subst-regexp "\\(^\\|[ \t]\\)\\?\\([ \t]\\|$\\)")
54 ;;;###autoload
55 (defun dired-diff (file &optional switches)
56 "Compare file at point with file FILE using `diff'.
57 FILE defaults to the file at the mark. (That's the mark set by
58 \\[set-mark-command], not by Dired's \\[dired-mark] command.)
59 The prompted-for file is the first file given to `diff'.
60 With prefix arg, prompt for second argument SWITCHES,
61 which is options for `diff'."
62 (interactive
63 (let* ((current (dired-get-filename t))
64 ;; Get the file at the mark.
65 (file-at-mark (if (mark t)
66 (save-excursion (goto-char (mark t))
67 (dired-get-filename t t))))
68 ;; Use it as default if it's not the same as the current file,
69 ;; and the target dir is the current dir or the mark is active.
70 (default (if (and (not (equal file-at-mark current))
71 (or (equal (dired-dwim-target-directory)
72 (dired-current-directory))
73 mark-active))
74 file-at-mark))
75 (target-dir (if default
76 (dired-current-directory)
77 (dired-dwim-target-directory)))
78 (defaults (dired-dwim-target-defaults (list current) target-dir)))
79 (require 'diff)
80 (list
81 (minibuffer-with-setup-hook
82 (lambda ()
83 (set (make-local-variable 'minibuffer-default-add-function) nil)
84 (setq minibuffer-default defaults))
85 (read-file-name
86 (format "Diff %s with%s: " current
87 (if default (format " (default %s)" default) ""))
88 target-dir default t))
89 (if current-prefix-arg
90 (read-string "Options for diff: "
91 (if (stringp diff-switches)
92 diff-switches
93 (mapconcat 'identity diff-switches " ")))))))
94 (let ((current (dired-get-filename t)))
95 (when (or (equal (expand-file-name file)
96 (expand-file-name current))
97 (and (file-directory-p file)
98 (equal (expand-file-name current file)
99 (expand-file-name current))))
100 (error "Attempt to compare the file to itself"))
101 (diff file current switches)))
103 ;;;###autoload
104 (defun dired-backup-diff (&optional switches)
105 "Diff this file with its backup file or vice versa.
106 Uses the latest backup, if there are several numerical backups.
107 If this file is a backup, diff it with its original.
108 The backup file is the first file given to `diff'.
109 With prefix arg, prompt for argument SWITCHES which is options for `diff'."
110 (interactive
111 (if current-prefix-arg
112 (list (read-string "Options for diff: "
113 (if (stringp diff-switches)
114 diff-switches
115 (mapconcat 'identity diff-switches " "))))
116 nil))
117 (diff-backup (dired-get-filename) switches))
119 ;;;###autoload
120 (defun dired-compare-directories (dir2 predicate)
121 "Mark files with different file attributes in two dired buffers.
122 Compare file attributes of files in the current directory
123 with file attributes in directory DIR2 using PREDICATE on pairs of files
124 with the same name. Mark files for which PREDICATE returns non-nil.
125 Mark files with different names if PREDICATE is nil (or interactively
126 with empty input at the predicate prompt).
128 PREDICATE is a Lisp expression that can refer to the following variables:
130 size1, size2 - file size in bytes
131 mtime1, mtime2 - last modification time in seconds, as a float
132 fa1, fa2 - list of file attributes
133 returned by function `file-attributes'
135 where 1 refers to attribute of file in the current dired buffer
136 and 2 to attribute of file in second dired buffer.
138 Examples of PREDICATE:
140 (> mtime1 mtime2) - mark newer files
141 (not (= size1 size2)) - mark files with different sizes
142 (not (string= (nth 8 fa1) (nth 8 fa2))) - mark files with different modes
143 (not (and (= (nth 2 fa1) (nth 2 fa2)) - mark files with different UID
144 (= (nth 3 fa1) (nth 3 fa2)))) and GID."
145 (interactive
146 (list
147 (let* ((target-dir (dired-dwim-target-directory))
148 (defaults (dired-dwim-target-defaults nil target-dir)))
149 (minibuffer-with-setup-hook
150 (lambda ()
151 (set (make-local-variable 'minibuffer-default-add-function) nil)
152 (setq minibuffer-default defaults))
153 (read-directory-name (format "Compare %s with: "
154 (dired-current-directory))
155 target-dir target-dir t)))
156 (read-from-minibuffer "Mark if (lisp expr or RET): " nil nil t nil "nil")))
157 (let* ((dir1 (dired-current-directory))
158 (file-alist1 (dired-files-attributes dir1))
159 (file-alist2 (dired-files-attributes dir2))
160 file-list1 file-list2)
161 (setq file-alist1 (delq (assoc "." file-alist1) file-alist1))
162 (setq file-alist1 (delq (assoc ".." file-alist1) file-alist1))
163 (setq file-alist2 (delq (assoc "." file-alist2) file-alist2))
164 (setq file-alist2 (delq (assoc ".." file-alist2) file-alist2))
165 (setq file-list1 (mapcar
166 'cadr
167 (dired-file-set-difference
168 file-alist1 file-alist2
169 predicate))
170 file-list2 (mapcar
171 'cadr
172 (dired-file-set-difference
173 file-alist2 file-alist1
174 predicate)))
175 (dired-fun-in-all-buffers
176 dir1 nil
177 (lambda ()
178 (dired-mark-if
179 (member (dired-get-filename nil t) file-list1) nil)))
180 (dired-fun-in-all-buffers
181 dir2 nil
182 (lambda ()
183 (dired-mark-if
184 (member (dired-get-filename nil t) file-list2) nil)))
185 (message "Marked in dir1: %s files, in dir2: %s files"
186 (length file-list1)
187 (length file-list2))))
189 (defun dired-file-set-difference (list1 list2 predicate)
190 "Combine LIST1 and LIST2 using a set-difference operation.
191 The result list contains all file items that appear in LIST1 but not LIST2.
192 This is a non-destructive function; it makes a copy of the data if necessary
193 to avoid corrupting the original LIST1 and LIST2.
194 PREDICATE (see `dired-compare-directories') is an additional match
195 condition. Two file items are considered to match if they are equal
196 *and* PREDICATE evaluates to t."
197 (if (or (null list1) (null list2))
198 list1
199 (let (res)
200 (dolist (file1 list1)
201 (unless (let ((list list2))
202 (while (and list
203 (not (let* ((file2 (car list))
204 (fa1 (car (cddr file1)))
205 (fa2 (car (cddr file2)))
206 (size1 (nth 7 fa1))
207 (size2 (nth 7 fa2))
208 (mtime1 (float-time (nth 5 fa1)))
209 (mtime2 (float-time (nth 5 fa2))))
210 (and
211 (equal (car file1) (car file2))
212 (not (eval predicate))))))
213 (setq list (cdr list)))
214 list)
215 (setq res (cons file1 res))))
216 (nreverse res))))
218 (defun dired-files-attributes (dir)
219 "Return a list of all file names and attributes from DIR.
220 List has a form of (file-name full-file-name (attribute-list))."
221 (mapcar
222 (lambda (file-name)
223 (let ((full-file-name (expand-file-name file-name dir)))
224 (list file-name
225 full-file-name
226 (file-attributes full-file-name))))
227 (directory-files dir)))
230 (defun dired-touch-initial (files)
231 "Create initial input value for `touch' command."
232 (let (initial)
233 (while files
234 (let ((current (nth 5 (file-attributes (car files)))))
235 (if (and initial (not (equal initial current)))
236 (setq initial (current-time) files nil)
237 (setq initial current))
238 (setq files (cdr files))))
239 (format-time-string "%Y%m%d%H%M.%S" initial)))
241 (defun dired-do-chxxx (attribute-name program op-symbol arg)
242 ;; Change file attributes (mode, group, owner, timestamp) of marked files and
243 ;; refresh their file lines.
244 ;; ATTRIBUTE-NAME is a string describing the attribute to the user.
245 ;; PROGRAM is the program used to change the attribute.
246 ;; OP-SYMBOL is the type of operation (for use in dired-mark-pop-up).
247 ;; ARG describes which files to use, as in dired-get-marked-files.
248 (let* ((files (dired-get-marked-files t arg))
249 (new-attribute
250 (dired-mark-read-string
251 (concat "Change " attribute-name " of %s to: ")
252 (if (eq op-symbol 'touch) (dired-touch-initial files))
253 op-symbol arg files))
254 (operation (concat program " " new-attribute))
255 failures)
256 (setq failures
257 (dired-bunch-files 10000
258 (function dired-check-process)
259 (append
260 (list operation program)
261 (if (eq op-symbol 'touch)
262 '("-t") nil)
263 (list new-attribute)
264 (if (string-match "gnu" system-configuration)
265 '("--") nil))
266 files))
267 (dired-do-redisplay arg);; moves point if ARG is an integer
268 (if failures
269 (dired-log-summary
270 (format "%s: error" operation)
271 nil))))
273 ;;;###autoload
274 (defun dired-do-chmod (&optional arg)
275 "Change the mode of the marked (or next ARG) files.
276 Symbolic modes like `g+w' are allowed."
277 (interactive "P")
278 (let* ((files (dired-get-marked-files t arg))
279 (modestr (and (stringp (car files))
280 (nth 8 (file-attributes (car files)))))
281 (default
282 (and (stringp modestr)
283 (string-match "^.\\(...\\)\\(...\\)\\(...\\)$" modestr)
284 (replace-regexp-in-string
285 "-" ""
286 (format "u=%s,g=%s,o=%s"
287 (match-string 1 modestr)
288 (match-string 2 modestr)
289 (match-string 3 modestr)))))
290 (modes (dired-mark-read-string
291 "Change mode of %s to: " nil
292 'chmod arg files default))
293 (num-modes (if (string-match "^[0-7]+" modes)
294 (string-to-number modes 8))))
295 (dolist (file files)
296 (set-file-modes
297 file
298 (if num-modes num-modes
299 (file-modes-symbolic-to-number modes (file-modes file)))))
300 (dired-do-redisplay arg)))
302 ;;;###autoload
303 (defun dired-do-chgrp (&optional arg)
304 "Change the group of the marked (or next ARG) files."
305 (interactive "P")
306 (if (memq system-type '(ms-dos windows-nt))
307 (error "chgrp not supported on this system"))
308 (dired-do-chxxx "Group" "chgrp" 'chgrp arg))
310 ;;;###autoload
311 (defun dired-do-chown (&optional arg)
312 "Change the owner of the marked (or next ARG) files."
313 (interactive "P")
314 (if (memq system-type '(ms-dos windows-nt))
315 (error "chown not supported on this system"))
316 (dired-do-chxxx "Owner" dired-chown-program 'chown arg))
318 ;;;###autoload
319 (defun dired-do-touch (&optional arg)
320 "Change the timestamp of the marked (or next ARG) files.
321 This calls touch."
322 (interactive "P")
323 (dired-do-chxxx "Timestamp" dired-touch-program 'touch arg))
325 ;; Process all the files in FILES in batches of a convenient size,
326 ;; by means of (FUNCALL FUNCTION ARGS... SOME-FILES...).
327 ;; Batches are chosen to need less than MAX chars for the file names,
328 ;; allowing 3 extra characters of separator per file name.
329 (defun dired-bunch-files (max function args files)
330 (let (pending
331 past
332 (pending-length 0)
333 failures)
334 ;; Accumulate files as long as they fit in MAX chars,
335 ;; then process the ones accumulated so far.
336 (while files
337 (let* ((thisfile (car files))
338 (thislength (+ (length thisfile) 3))
339 (rest (cdr files)))
340 ;; If we have at least 1 pending file
341 ;; and this file won't fit in the length limit, process now.
342 (if (and pending (> (+ thislength pending-length) max))
343 (setq pending (nreverse pending)
344 ;; The elements of PENDING are now in forward order.
345 ;; Do the operation and record failures.
346 failures (nconc (apply function (append args pending))
347 failures)
348 ;; Transfer the elemens of PENDING onto PAST
349 ;; and clear it out. Now PAST contains the first N files
350 ;; specified (for some N), and FILES contains the rest.
351 past (nconc past pending)
352 pending nil
353 pending-length 0))
354 ;; Do (setq pending (cons thisfile pending))
355 ;; but reuse the cons that was in `files'.
356 (setcdr files pending)
357 (setq pending files)
358 (setq pending-length (+ thislength pending-length))
359 (setq files rest)))
360 (setq pending (nreverse pending))
361 (prog1
362 (nconc (apply function (append args pending))
363 failures)
364 ;; Now the original list FILES has been put back as it was.
365 (nconc past pending))))
367 ;;;###autoload
368 (defun dired-do-print (&optional arg)
369 "Print the marked (or next ARG) files.
370 Uses the shell command coming from variables `lpr-command' and
371 `lpr-switches' as default."
372 (interactive "P")
373 (let* ((file-list (dired-get-marked-files t arg))
374 (command (dired-mark-read-string
375 "Print %s with: "
376 (mapconcat 'identity
377 (cons lpr-command
378 (if (stringp lpr-switches)
379 (list lpr-switches)
380 lpr-switches))
381 " ")
382 'print arg file-list)))
383 (dired-run-shell-command (dired-shell-stuff-it command file-list nil))))
385 ;; Read arguments for a marked-files command that wants a string
386 ;; that is not a file name,
387 ;; perhaps popping up the list of marked files.
388 ;; ARG is the prefix arg and indicates whether the files came from
389 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
390 ;; If the current file was used, the list has but one element and ARG
391 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
393 (defun dired-mark-read-string (prompt initial op-symbol arg files &optional default)
394 ;; PROMPT for a string, with INITIAL input and DEFAULT value.
395 ;; Other args are used to give user feedback and pop-up:
396 ;; OP-SYMBOL of command, prefix ARG, marked FILES.
397 (dired-mark-pop-up
398 nil op-symbol files
399 (function read-string)
400 (format prompt (dired-mark-prompt arg files)) initial nil default))
402 ;;; Cleaning a directory: flagging some backups for deletion.
404 (defvar dired-file-version-alist)
406 ;;;###autoload
407 (defun dired-clean-directory (keep)
408 "Flag numerical backups for deletion.
409 Spares `dired-kept-versions' latest versions, and `kept-old-versions' oldest.
410 Positive prefix arg KEEP overrides `dired-kept-versions';
411 Negative prefix arg KEEP overrides `kept-old-versions' with KEEP made positive.
413 To clear the flags on these files, you can use \\[dired-flag-backup-files]
414 with a prefix argument."
415 (interactive "P")
416 (setq keep (if keep (prefix-numeric-value keep) dired-kept-versions))
417 (let ((early-retention (if (< keep 0) (- keep) kept-old-versions))
418 (late-retention (if (<= keep 0) dired-kept-versions keep))
419 (dired-file-version-alist ()))
420 (message "Cleaning numerical backups (keeping %d late, %d old)..."
421 late-retention early-retention)
422 ;; Look at each file.
423 ;; If the file has numeric backup versions,
424 ;; put on dired-file-version-alist an element of the form
425 ;; (FILENAME . VERSION-NUMBER-LIST)
426 (dired-map-dired-file-lines (function dired-collect-file-versions))
427 ;; Sort each VERSION-NUMBER-LIST,
428 ;; and remove the versions not to be deleted.
429 (let ((fval dired-file-version-alist))
430 (while fval
431 (let* ((sorted-v-list (cons 'q (sort (cdr (car fval)) '<)))
432 (v-count (length sorted-v-list)))
433 (if (> v-count (+ early-retention late-retention))
434 (rplacd (nthcdr early-retention sorted-v-list)
435 (nthcdr (- v-count late-retention)
436 sorted-v-list)))
437 (rplacd (car fval)
438 (cdr sorted-v-list)))
439 (setq fval (cdr fval))))
440 ;; Look at each file. If it is a numeric backup file,
441 ;; find it in a VERSION-NUMBER-LIST and maybe flag it for deletion.
442 (dired-map-dired-file-lines (function dired-trample-file-versions))
443 (message "Cleaning numerical backups...done")))
445 ;;; Subroutines of dired-clean-directory.
447 (defun dired-map-dired-file-lines (fun)
448 ;; Perform FUN with point at the end of each non-directory line.
449 ;; FUN takes one argument, the absolute filename.
450 (save-excursion
451 (let (file buffer-read-only)
452 (goto-char (point-min))
453 (while (not (eobp))
454 (save-excursion
455 (and (not (looking-at dired-re-dir))
456 (not (eolp))
457 (setq file (dired-get-filename nil t)) ; nil on non-file
458 (progn (end-of-line)
459 (funcall fun file))))
460 (forward-line 1)))))
462 (defun dired-collect-file-versions (fn)
463 (let ((fn (file-name-sans-versions fn)))
464 ;; Only do work if this file is not already in the alist.
465 (if (assoc fn dired-file-version-alist)
467 ;; If it looks like file FN has versions, return a list of the versions.
468 ;;That is a list of strings which are file names.
469 ;;The caller may want to flag some of these files for deletion.
470 (let* ((base-versions
471 (concat (file-name-nondirectory fn) ".~"))
472 (backup-extract-version-start (length base-versions))
473 (possibilities (file-name-all-completions
474 base-versions
475 (file-name-directory fn)))
476 (versions (mapcar 'backup-extract-version possibilities)))
477 (if versions
478 (setq dired-file-version-alist
479 (cons (cons fn versions)
480 dired-file-version-alist)))))))
482 (defun dired-trample-file-versions (fn)
483 (let* ((start-vn (string-match "\\.~[0-9]+~$" fn))
484 base-version-list)
485 (and start-vn
486 (setq base-version-list ; there was a base version to which
487 (assoc (substring fn 0 start-vn) ; this looks like a
488 dired-file-version-alist)) ; subversion
489 (not (memq (string-to-number (substring fn (+ 2 start-vn)))
490 base-version-list)) ; this one doesn't make the cut
491 (progn (beginning-of-line)
492 (delete-char 1)
493 (insert dired-del-marker)))))
495 ;;; Shell commands
497 (declare-function mailcap-file-default-commands "mailcap" (files))
499 (defun minibuffer-default-add-dired-shell-commands ()
500 "Return a list of all commands associated with current dired files.
501 This function is used to add all related commands retrieved by `mailcap'
502 to the end of the list of defaults just after the default value."
503 (interactive)
504 (let ((commands (and (boundp 'files) (require 'mailcap nil t)
505 (mailcap-file-default-commands files))))
506 (if (listp minibuffer-default)
507 (append minibuffer-default commands)
508 (cons minibuffer-default commands))))
510 ;; This is an extra function so that you can redefine it, e.g., to use gmhist.
511 (defun dired-read-shell-command (prompt arg files)
512 "Read a dired shell command prompting with PROMPT (using `read-shell-command').
513 ARG is the prefix arg and may be used to indicate in the prompt which
514 FILES are affected."
515 (minibuffer-with-setup-hook
516 (lambda ()
517 (set (make-local-variable 'minibuffer-default-add-function)
518 'minibuffer-default-add-dired-shell-commands))
519 (dired-mark-pop-up
520 nil 'shell files
521 #'read-shell-command
522 (format prompt (dired-mark-prompt arg files))
523 nil nil)))
525 ;;;###autoload
526 (defun dired-do-async-shell-command (command &optional arg file-list)
527 "Run a shell command COMMAND on the marked files asynchronously.
529 Like `dired-do-shell-command' but if COMMAND doesn't end in ampersand,
530 adds `* &' surrounded by whitespace and executes the command asynchronously.
531 The output appears in the buffer `*Async Shell Command*'."
532 (interactive
533 (let ((files (dired-get-marked-files t current-prefix-arg)))
534 (list
535 ;; Want to give feedback whether this file or marked files are used:
536 (dired-read-shell-command "& on %s: " current-prefix-arg files)
537 current-prefix-arg
538 files)))
539 (unless (string-match "[*?][ \t]*\\'" command)
540 (setq command (concat command " *")))
541 (unless (string-match "&[ \t]*\\'" command)
542 (setq command (concat command " &")))
543 (dired-do-shell-command command arg file-list))
545 ;; The in-background argument is only needed in Emacs 18 where
546 ;; shell-command doesn't understand an appended ampersand `&'.
547 ;;;###autoload
548 (defun dired-do-shell-command (command &optional arg file-list)
549 "Run a shell command COMMAND on the marked files.
550 If no files are marked or a specific numeric prefix arg is given,
551 the next ARG files are used. Just \\[universal-argument] means the current file.
552 The prompt mentions the file(s) or the marker, as appropriate.
554 If there is a `*' in COMMAND, surrounded by whitespace, this runs
555 COMMAND just once with the entire file list substituted there.
557 If there is no `*', but there is a `?' in COMMAND, surrounded by
558 whitespace, this runs COMMAND on each file individually with the
559 file name substituted for `?'.
561 Otherwise, this runs COMMAND on each file individually with the
562 file name added at the end of COMMAND (separated by a space).
564 `*' and `?' when not surrounded by whitespace have no special
565 significance for `dired-do-shell-command', and are passed through
566 normally to the shell, but you must confirm first. To pass `*' by
567 itself to the shell as a wildcard, type `*\"\"'.
569 If COMMAND produces output, it goes to a separate buffer.
571 This feature does not try to redisplay Dired buffers afterward, as
572 there's no telling what files COMMAND may have changed.
573 Type \\[dired-do-redisplay] to redisplay the marked files.
575 When COMMAND runs, its working directory is the top-level directory
576 of the Dired buffer, so output files usually are created there
577 instead of in a subdir.
579 In a noninteractive call (from Lisp code), you must specify
580 the list of file names explicitly with the FILE-LIST argument, which
581 can be produced by `dired-get-marked-files', for example."
582 ;;Functions dired-run-shell-command and dired-shell-stuff-it do the
583 ;;actual work and can be redefined for customization.
584 (interactive
585 (let ((files (dired-get-marked-files t current-prefix-arg)))
586 (list
587 ;; Want to give feedback whether this file or marked files are used:
588 (dired-read-shell-command (concat "! on "
589 "%s: ")
590 current-prefix-arg
591 files)
592 current-prefix-arg
593 files)))
594 (let* ((on-each (not (string-match dired-star-subst-regexp command)))
595 (subst (not (string-match dired-quark-subst-regexp command)))
596 (star (not (string-match "\\*" command)))
597 (qmark (not (string-match "\\?" command))))
598 ;; Get confirmation for wildcards that may have been meant
599 ;; to control substitution of a file name or the file name list.
600 (if (cond ((not (or on-each subst))
601 (error "You can not combine `*' and `?' substitution marks"))
602 ((and star (not on-each))
603 (y-or-n-p "Confirm--do you mean to use `*' as a wildcard? "))
604 ((and qmark (not subst))
605 (y-or-n-p "Confirm--do you mean to use `?' as a wildcard? "))
606 (t))
607 (if on-each
608 (dired-bunch-files
609 (- 10000 (length command))
610 (function (lambda (&rest files)
611 (dired-run-shell-command
612 (dired-shell-stuff-it command files t arg))))
614 file-list)
615 ;; execute the shell command
616 (dired-run-shell-command
617 (dired-shell-stuff-it command file-list nil arg))))))
619 ;; Might use {,} for bash or csh:
620 (defvar dired-mark-prefix ""
621 "Prepended to marked files in dired shell commands.")
622 (defvar dired-mark-postfix ""
623 "Appended to marked files in dired shell commands.")
624 (defvar dired-mark-separator " "
625 "Separates marked files in dired shell commands.")
627 (defun dired-shell-stuff-it (command file-list on-each &optional raw-arg)
628 ;; "Make up a shell command line from COMMAND and FILE-LIST.
629 ;; If ON-EACH is t, COMMAND should be applied to each file, else
630 ;; simply concat all files and apply COMMAND to this.
631 ;; FILE-LIST's elements will be quoted for the shell."
632 ;; Might be redefined for smarter things and could then use RAW-ARG
633 ;; (coming from interactive P and currently ignored) to decide what to do.
634 ;; Smart would be a way to access basename or extension of file names.
635 (let ((stuff-it
636 (if (or (string-match dired-star-subst-regexp command)
637 (string-match dired-quark-subst-regexp command))
638 (lambda (x)
639 (let ((retval command))
640 (while (string-match
641 "\\(^\\|[ \t]\\)\\([*?]\\)\\([ \t]\\|$\\)" retval)
642 (setq retval (replace-match x t t retval 2)))
643 retval))
644 (lambda (x) (concat command dired-mark-separator x)))))
645 (if on-each
646 (mapconcat stuff-it (mapcar 'shell-quote-argument file-list) ";")
647 (let ((files (mapconcat 'shell-quote-argument
648 file-list dired-mark-separator)))
649 (if (> (length file-list) 1)
650 (setq files (concat dired-mark-prefix files dired-mark-postfix)))
651 (funcall stuff-it files)))))
653 ;; This is an extra function so that it can be redefined by ange-ftp.
654 ;;;###autoload
655 (defun dired-run-shell-command (command)
656 (let ((handler
657 (find-file-name-handler (directory-file-name default-directory)
658 'shell-command)))
659 (if handler (apply handler 'shell-command (list command))
660 (shell-command command)))
661 ;; Return nil for sake of nconc in dired-bunch-files.
662 nil)
665 (defun dired-check-process (msg program &rest arguments)
666 ; "Display MSG while running PROGRAM, and check for output.
667 ;Remaining arguments are strings passed as command arguments to PROGRAM.
668 ; On error, insert output
669 ; in a log buffer and return the offending ARGUMENTS or PROGRAM.
670 ; Caller can cons up a list of failed args.
671 ;Else returns nil for success."
672 (let (err-buffer err (dir default-directory))
673 (message "%s..." msg)
674 (save-excursion
675 ;; Get a clean buffer for error output:
676 (setq err-buffer (get-buffer-create " *dired-check-process output*"))
677 (set-buffer err-buffer)
678 (erase-buffer)
679 (setq default-directory dir ; caller's default-directory
680 err (not (eq 0 (apply 'process-file program nil t nil arguments))))
681 (if err
682 (progn
683 (dired-log (concat program " " (prin1-to-string arguments) "\n"))
684 (dired-log err-buffer)
685 (or arguments program t))
686 (kill-buffer err-buffer)
687 (message "%s...done" msg)
688 nil))))
690 ;; Commands that delete or redisplay part of the dired buffer.
692 (defun dired-kill-line (&optional arg)
693 (interactive "P")
694 (setq arg (prefix-numeric-value arg))
695 (let (buffer-read-only file)
696 (while (/= 0 arg)
697 (setq file (dired-get-filename nil t))
698 (if (not file)
699 (error "Can only kill file lines")
700 (save-excursion (and file
701 (dired-goto-subdir file)
702 (dired-kill-subdir)))
703 (delete-region (line-beginning-position)
704 (progn (forward-line 1) (point)))
705 (if (> arg 0)
706 (setq arg (1- arg))
707 (setq arg (1+ arg))
708 (forward-line -1))))
709 (dired-move-to-filename)))
711 ;;;###autoload
712 (defun dired-do-kill-lines (&optional arg fmt)
713 "Kill all marked lines (not the files).
714 With a prefix argument, kill that many lines starting with the current line.
715 \(A negative argument kills backward.)
716 If you use this command with a prefix argument to kill the line
717 for a file that is a directory, which you have inserted in the
718 Dired buffer as a subdirectory, then it deletes that subdirectory
719 from the buffer as well.
720 To kill an entire subdirectory \(without killing its line in the
721 parent directory), go to its directory header line and use this
722 command with a prefix argument (the value does not matter)."
723 ;; Returns count of killed lines. FMT="" suppresses message.
724 (interactive "P")
725 (if arg
726 (if (dired-get-subdir)
727 (dired-kill-subdir)
728 (dired-kill-line arg))
729 (save-excursion
730 (goto-char (point-min))
731 (let (buffer-read-only
732 (count 0)
733 (regexp (dired-marker-regexp)))
734 (while (and (not (eobp))
735 (re-search-forward regexp nil t))
736 (setq count (1+ count))
737 (delete-region (line-beginning-position)
738 (progn (forward-line 1) (point))))
739 (or (equal "" fmt)
740 (message (or fmt "Killed %d line%s.") count (dired-plural-s count)))
741 count))))
743 ;;;###end dired-cmd.el
745 ;;; 30K
746 ;;;###begin dired-cp.el
748 (defun dired-compress ()
749 ;; Compress or uncompress the current file.
750 ;; Return nil for success, offending filename else.
751 (let* (buffer-read-only
752 (from-file (dired-get-filename))
753 (new-file (dired-compress-file from-file)))
754 (if new-file
755 (let ((start (point)))
756 ;; Remove any preexisting entry for the name NEW-FILE.
757 (condition-case nil
758 (dired-remove-entry new-file)
759 (error nil))
760 (goto-char start)
761 ;; Now replace the current line with an entry for NEW-FILE.
762 (dired-update-file-line new-file) nil)
763 (dired-log (concat "Failed to compress" from-file))
764 from-file)))
766 (defvar dired-compress-file-suffixes
767 '(("\\.gz\\'" "" "gunzip")
768 ("\\.tgz\\'" ".tar" "gunzip")
769 ("\\.Z\\'" "" "uncompress")
770 ;; For .z, try gunzip. It might be an old gzip file,
771 ;; or it might be from compact? pack? (which?) but gunzip handles both.
772 ("\\.z\\'" "" "gunzip")
773 ("\\.dz\\'" "" "dictunzip")
774 ("\\.tbz\\'" ".tar" "bunzip2")
775 ("\\.bz2\\'" "" "bunzip2")
776 ("\\.xz\\'" "" "unxz")
777 ;; This item controls naming for compression.
778 ("\\.tar\\'" ".tgz" nil))
779 "Control changes in file name suffixes for compression and uncompression.
780 Each element specifies one transformation rule, and has the form:
781 (REGEXP NEW-SUFFIX PROGRAM)
782 The rule applies when the old file name matches REGEXP.
783 The new file name is computed by deleting the part that matches REGEXP
784 (as well as anything after that), then adding NEW-SUFFIX in its place.
785 If PROGRAM is non-nil, the rule is an uncompression rule,
786 and uncompression is done by running PROGRAM.
787 Otherwise, the rule is a compression rule, and compression is done with gzip.")
789 ;;;###autoload
790 (defun dired-compress-file (file)
791 ;; Compress or uncompress FILE.
792 ;; Return the name of the compressed or uncompressed file.
793 ;; Return nil if no change in files.
794 (let ((handler (find-file-name-handler file 'dired-compress-file))
795 suffix newname
796 (suffixes dired-compress-file-suffixes))
797 ;; See if any suffix rule matches this file name.
798 (while suffixes
799 (let (case-fold-search)
800 (if (string-match (car (car suffixes)) file)
801 (setq suffix (car suffixes) suffixes nil))
802 (setq suffixes (cdr suffixes))))
803 ;; If so, compute desired new name.
804 (if suffix
805 (setq newname (concat (substring file 0 (match-beginning 0))
806 (nth 1 suffix))))
807 (cond (handler
808 (funcall handler 'dired-compress-file file))
809 ((file-symlink-p file)
810 nil)
811 ((and suffix (nth 2 suffix))
812 ;; We found an uncompression rule.
813 (if (not (dired-check-process (concat "Uncompressing " file)
814 (nth 2 suffix) file))
815 newname))
817 ;;; We don't recognize the file as compressed, so compress it.
818 ;;; Try gzip; if we don't have that, use compress.
819 (condition-case nil
820 (let ((out-name (concat file ".gz")))
821 (and (or (not (file-exists-p out-name))
822 (y-or-n-p
823 (format "File %s already exists. Really compress? "
824 out-name)))
825 (not (dired-check-process (concat "Compressing " file)
826 "gzip" "-f" file))
827 (or (file-exists-p out-name)
828 (setq out-name (concat file ".z")))
829 ;; Rename the compressed file to NEWNAME
830 ;; if it hasn't got that name already.
831 (if (and newname (not (equal newname out-name)))
832 (progn
833 (rename-file out-name newname t)
834 newname)
835 out-name)))
836 (file-error
837 (if (not (dired-check-process (concat "Compressing " file)
838 "compress" "-f" file))
839 ;; Don't use NEWNAME with `compress'.
840 (concat file ".Z"))))))))
842 (defun dired-mark-confirm (op-symbol arg)
843 ;; Request confirmation from the user that the operation described
844 ;; by OP-SYMBOL is to be performed on the marked files.
845 ;; Confirmation consists in a y-or-n question with a file list
846 ;; pop-up unless OP-SYMBOL is a member of `dired-no-confirm'.
847 ;; The files used are determined by ARG (as in dired-get-marked-files).
848 (or (eq dired-no-confirm t)
849 (memq op-symbol dired-no-confirm)
850 ;; Pass t for DISTINGUISH-ONE-MARKED so that a single file which
851 ;; is marked pops up a window. That will help the user see
852 ;; it isn't the current line file.
853 (let ((files (dired-get-marked-files t arg nil t))
854 (string (if (eq op-symbol 'compress) "Compress or uncompress"
855 (capitalize (symbol-name op-symbol)))))
856 (dired-mark-pop-up nil op-symbol files (function y-or-n-p)
857 (concat string " "
858 (dired-mark-prompt arg files) "? ")))))
860 (defun dired-map-over-marks-check (fun arg op-symbol &optional show-progress)
861 ; "Map FUN over marked files (with second ARG like in dired-map-over-marks)
862 ; and display failures.
864 ; FUN takes zero args. It returns non-nil (the offending object, e.g.
865 ; the short form of the filename) for a failure and probably logs a
866 ; detailed error explanation using function `dired-log'.
868 ; OP-SYMBOL is a symbol describing the operation performed (e.g.
869 ; `compress'). It is used with `dired-mark-pop-up' to prompt the user
870 ; (e.g. with `Compress * [2 files]? ') and to display errors (e.g.
871 ; `Failed to compress 1 of 2 files - type W to see why ("foo")')
873 ; SHOW-PROGRESS if non-nil means redisplay dired after each file."
874 (if (dired-mark-confirm op-symbol arg)
875 (let* ((total-list;; all of FUN's return values
876 (dired-map-over-marks (funcall fun) arg show-progress))
877 (total (length total-list))
878 (failures (delq nil total-list))
879 (count (length failures))
880 (string (if (eq op-symbol 'compress) "Compress or uncompress"
881 (capitalize (symbol-name op-symbol)))))
882 (if (not failures)
883 (message "%s: %d file%s."
884 string total (dired-plural-s total))
885 ;; end this bunch of errors:
886 (dired-log-summary
887 (format "Failed to %s %d of %d file%s"
888 (downcase string) count total (dired-plural-s total))
889 failures)))))
891 ;;;###autoload
892 (defun dired-query (sym prompt &rest args)
893 "Format PROMPT with ARGS, query user, and store the result in SYM.
894 The return value is either nil or t.
896 The user may type y or SPC to accept once; n or DEL to skip once;
897 ! to accept this and subsequent queries; or q or ESC to decline
898 this and subsequent queries.
900 If SYM is already bound to a non-nil value, this function may
901 return automatically without querying the user. If SYM is !,
902 return t; if SYM is q or ESC, return nil."
903 (let* ((char (symbol-value sym))
904 (char-choices '(?y ?\s ?n ?\177 ?! ?q ?\e)))
905 (cond ((eq char ?!)
906 t) ; accept, and don't ask again
907 ((memq char '(?q ?\e))
908 nil) ; skip, and don't ask again
909 (t ; no previous answer - ask now
910 (setq prompt
911 (concat (apply 'format prompt args)
912 (if help-form
913 (format " [Type yn!q or %s] "
914 (key-description
915 (char-to-string help-char)))
916 " [Type y, n, q or !] ")))
917 (set sym (setq char (read-char-choice prompt char-choices)))
918 (if (memq char '(?y ?\s ?!)) t)))))
921 ;;;###autoload
922 (defun dired-do-compress (&optional arg)
923 "Compress or uncompress marked (or next ARG) files."
924 (interactive "P")
925 (dired-map-over-marks-check (function dired-compress) arg 'compress t))
927 ;; Commands for Emacs Lisp files - load and byte compile
929 (defun dired-byte-compile ()
930 ;; Return nil for success, offending file name else.
931 (let* ((filename (dired-get-filename))
932 elc-file buffer-read-only failure)
933 (condition-case err
934 (save-excursion (byte-compile-file filename))
935 (error
936 (setq failure err)))
937 (setq elc-file (byte-compile-dest-file filename))
938 (or (file-exists-p elc-file)
939 (setq failure t))
940 (if failure
941 (progn
942 (dired-log "Byte compile error for %s:\n%s\n" filename failure)
943 (dired-make-relative filename))
944 (dired-remove-file elc-file)
945 (forward-line) ; insert .elc after its .el file
946 (dired-add-file elc-file)
947 nil)))
949 ;;;###autoload
950 (defun dired-do-byte-compile (&optional arg)
951 "Byte compile marked (or next ARG) Emacs Lisp files."
952 (interactive "P")
953 (dired-map-over-marks-check (function dired-byte-compile) arg 'byte-compile t))
955 (defun dired-load ()
956 ;; Return nil for success, offending file name else.
957 (let ((file (dired-get-filename)) failure)
958 (condition-case err
959 (load file nil nil t)
960 (error (setq failure err)))
961 (if (not failure)
963 (dired-log "Load error for %s:\n%s\n" file failure)
964 (dired-make-relative file))))
966 ;;;###autoload
967 (defun dired-do-load (&optional arg)
968 "Load the marked (or next ARG) Emacs Lisp files."
969 (interactive "P")
970 (dired-map-over-marks-check (function dired-load) arg 'load t))
972 ;;;###autoload
973 (defun dired-do-redisplay (&optional arg test-for-subdir)
974 "Redisplay all marked (or next ARG) files.
975 If on a subdir line, redisplay that subdirectory. In that case,
976 a prefix arg lets you edit the `ls' switches used for the new listing.
978 Dired remembers switches specified with a prefix arg, so that reverting
979 the buffer will not reset them. However, using `dired-undo' to re-insert
980 or delete subdirectories can bypass this machinery. Hence, you sometimes
981 may have to reset some subdirectory switches after a `dired-undo'.
982 You can reset all subdirectory switches to the default using
983 \\<dired-mode-map>\\[dired-reset-subdir-switches].
984 See Info node `(emacs)Subdir switches' for more details."
985 ;; Moves point if the next ARG files are redisplayed.
986 (interactive "P\np")
987 (if (and test-for-subdir (dired-get-subdir))
988 (let* ((dir (dired-get-subdir))
989 (switches (cdr (assoc-string dir dired-switches-alist))))
990 (dired-insert-subdir
992 (when arg
993 (read-string "Switches for listing: "
994 (or switches
995 dired-subdir-switches
996 dired-actual-switches)))))
997 (message "Redisplaying...")
998 ;; message much faster than making dired-map-over-marks show progress
999 (dired-uncache
1000 (if (consp dired-directory) (car dired-directory) dired-directory))
1001 (dired-map-over-marks (let ((fname (dired-get-filename))
1002 ;; Postphone readin hook till we map
1003 ;; over all marked files (Bug#6810).
1004 (dired-after-readin-hook nil))
1005 (message "Redisplaying... %s" fname)
1006 (dired-update-file-line fname))
1007 arg)
1008 (run-hooks 'dired-after-readin-hook)
1009 (dired-move-to-filename)
1010 (message "Redisplaying...done")))
1012 (defun dired-reset-subdir-switches ()
1013 "Set `dired-switches-alist' to nil and revert dired buffer."
1014 (interactive)
1015 (setq dired-switches-alist nil)
1016 (revert-buffer))
1018 (defun dired-update-file-line (file)
1019 ;; Delete the current line, and insert an entry for FILE.
1020 ;; If FILE is nil, then just delete the current line.
1021 ;; Keeps any marks that may be present in column one (doing this
1022 ;; here is faster than with dired-add-entry's optional arg).
1023 ;; Does not update other dired buffers. Use dired-relist-entry for that.
1024 (let ((char (following-char))
1025 (opoint (line-beginning-position))
1026 (buffer-read-only))
1027 (delete-region opoint (progn (forward-line 1) (point)))
1028 (if file
1029 (progn
1030 (dired-add-entry file nil t)
1031 ;; Replace space by old marker without moving point.
1032 ;; Faster than goto+insdel inside a save-excursion?
1033 (subst-char-in-region opoint (1+ opoint) ?\040 char))))
1034 (dired-move-to-filename))
1036 ;;;###autoload
1037 (defun dired-add-file (filename &optional marker-char)
1038 (dired-fun-in-all-buffers
1039 (file-name-directory filename) (file-name-nondirectory filename)
1040 (function dired-add-entry) filename marker-char))
1042 (defun dired-add-entry (filename &optional marker-char relative)
1043 ;; Add a new entry for FILENAME, optionally marking it
1044 ;; with MARKER-CHAR (a character, else dired-marker-char is used).
1045 ;; Note that this adds the entry `out of order' if files sorted by
1046 ;; time, etc.
1047 ;; At least this version inserts in the right subdirectory (if present).
1048 ;; And it skips "." or ".." (see `dired-trivial-filenames').
1049 ;; Hidden subdirs are exposed if a file is added there.
1050 (setq filename (directory-file-name filename))
1051 ;; Entry is always for files, even if they happen to also be directories
1052 (let* ((opoint (point))
1053 (cur-dir (dired-current-directory))
1054 (orig-file-name filename)
1055 (directory (if relative cur-dir (file-name-directory filename)))
1056 reason)
1057 (setq filename
1058 (if relative
1059 (file-relative-name filename directory)
1060 (file-name-nondirectory filename))
1061 reason
1062 (catch 'not-found
1063 (if (string= directory cur-dir)
1064 (progn
1065 (skip-chars-forward "^\r\n")
1066 (if (eq (following-char) ?\r)
1067 (dired-unhide-subdir))
1068 ;; We are already where we should be, except when
1069 ;; point is before the subdir line or its total line.
1070 (let ((p (dired-after-subdir-garbage cur-dir)))
1071 (if (< (point) p)
1072 (goto-char p))))
1073 ;; else try to find correct place to insert
1074 (if (dired-goto-subdir directory)
1075 (progn ;; unhide if necessary
1076 (if (looking-at "\r") ;; point is at end of subdir line
1077 (dired-unhide-subdir))
1078 ;; found - skip subdir and `total' line
1079 ;; and uninteresting files like . and ..
1080 ;; This better not moves into the next subdir!
1081 (dired-goto-next-nontrivial-file))
1082 ;; not found
1083 (throw 'not-found "Subdir not found")))
1084 (let (buffer-read-only opoint)
1085 (beginning-of-line)
1086 (setq opoint (point))
1087 ;; Don't expand `.'. Show just the file name within directory.
1088 (let ((default-directory directory))
1089 (dired-insert-directory directory
1090 (concat dired-actual-switches " -d")
1091 (list filename)))
1092 (goto-char opoint)
1093 ;; Put in desired marker char.
1094 (when marker-char
1095 (let ((dired-marker-char
1096 (if (integerp marker-char) marker-char dired-marker-char)))
1097 (dired-mark nil)))
1098 ;; Compensate for a bug in ange-ftp.
1099 ;; It inserts the file's absolute name, rather than
1100 ;; the relative one. That may be hard to fix since it
1101 ;; is probably controlled by something in ftp.
1102 (goto-char opoint)
1103 (let ((inserted-name (dired-get-filename 'verbatim)))
1104 (if (file-name-directory inserted-name)
1105 (let (props)
1106 (end-of-line)
1107 (forward-char (- (length inserted-name)))
1108 (setq props (text-properties-at (point)))
1109 (delete-char (length inserted-name))
1110 (let ((pt (point)))
1111 (insert filename)
1112 (set-text-properties pt (point) props))
1113 (forward-char 1))
1114 (forward-line 1)))
1115 (forward-line -1)
1116 (if dired-after-readin-hook ;; the subdir-alist is not affected...
1117 (save-excursion ;; ...so we can run it right now:
1118 (save-restriction
1119 (beginning-of-line)
1120 (narrow-to-region (point) (line-beginning-position 2))
1121 (run-hooks 'dired-after-readin-hook))))
1122 (dired-move-to-filename))
1123 ;; return nil if all went well
1124 nil))
1125 (if reason ; don't move away on failure
1126 (goto-char opoint))
1127 (not reason))) ; return t on success, nil else
1129 (defun dired-after-subdir-garbage (dir)
1130 ;; Return pos of first file line of DIR, skipping header and total
1131 ;; or wildcard lines.
1132 ;; Important: never moves into the next subdir.
1133 ;; DIR is assumed to be unhidden.
1134 (save-excursion
1135 (or (dired-goto-subdir dir) (error "This cannot happen"))
1136 (forward-line 1)
1137 (while (and (not (eolp)) ; don't cross subdir boundary
1138 (not (dired-move-to-filename)))
1139 (forward-line 1))
1140 (point)))
1142 ;;;###autoload
1143 (defun dired-remove-file (file)
1144 (dired-fun-in-all-buffers
1145 (file-name-directory file) (file-name-nondirectory file)
1146 (function dired-remove-entry) file))
1148 (defun dired-remove-entry (file)
1149 (save-excursion
1150 (and (dired-goto-file file)
1151 (let (buffer-read-only)
1152 (delete-region (progn (beginning-of-line) (point))
1153 (line-beginning-position 2))))))
1155 ;;;###autoload
1156 (defun dired-relist-file (file)
1157 "Create or update the line for FILE in all Dired buffers it would belong in."
1158 (dired-fun-in-all-buffers (file-name-directory file)
1159 (file-name-nondirectory file)
1160 (function dired-relist-entry) file))
1162 (defun dired-relist-entry (file)
1163 ;; Relist the line for FILE, or just add it if it did not exist.
1164 ;; FILE must be an absolute file name.
1165 (let (buffer-read-only marker)
1166 ;; If cursor is already on FILE's line delete-region will cause
1167 ;; save-excursion to fail because of floating makers,
1168 ;; moving point to beginning of line. Sigh.
1169 (save-excursion
1170 (and (dired-goto-file file)
1171 (delete-region (progn (beginning-of-line)
1172 (setq marker (following-char))
1173 (point))
1174 (line-beginning-position 2)))
1175 (setq file (directory-file-name file))
1176 (dired-add-entry file (if (eq ?\040 marker) nil marker)))))
1178 ;;; Copy, move/rename, making hard and symbolic links
1180 (defcustom dired-backup-overwrite nil
1181 "Non-nil if Dired should ask about making backups before overwriting files.
1182 Special value `always' suppresses confirmation."
1183 :type '(choice (const :tag "off" nil)
1184 (const :tag "suppress" always)
1185 (other :tag "ask" t))
1186 :group 'dired)
1188 ;; This is a fluid var used in dired-handle-overwrite. It should be
1189 ;; let-bound whenever dired-copy-file etc are called. See
1190 ;; dired-create-files for an example.
1191 (defvar dired-overwrite-confirmed)
1193 (defun dired-handle-overwrite (to)
1194 ;; Save old version of file TO that is to be overwritten.
1195 ;; `dired-overwrite-confirmed' and `overwrite-backup-query' are fluid vars
1196 ;; from dired-create-files.
1197 (let (backup)
1198 (when (and dired-backup-overwrite
1199 dired-overwrite-confirmed
1200 (setq backup (car (find-backup-file-name to)))
1201 (or (eq 'always dired-backup-overwrite)
1202 (dired-query 'overwrite-backup-query
1203 "Make backup for existing file `%s'? "
1204 to)))
1205 (rename-file to backup 0) ; confirm overwrite of old backup
1206 (dired-relist-entry backup))))
1208 ;;;###autoload
1209 (defun dired-copy-file (from to ok-flag)
1210 (dired-handle-overwrite to)
1211 (dired-copy-file-recursive from to ok-flag dired-copy-preserve-time t
1212 dired-recursive-copies))
1214 (declare-function make-symbolic-link "fileio.c")
1216 (defun dired-copy-file-recursive (from to ok-flag &optional
1217 preserve-time top recursive)
1218 (let ((attrs (file-attributes from))
1219 dirfailed)
1220 (if (and recursive
1221 (eq t (car attrs))
1222 (or (eq recursive 'always)
1223 (yes-or-no-p (format "Recursive copies of %s? " from))))
1224 ;; This is a directory.
1225 (copy-directory from to dired-copy-preserve-time)
1226 ;; Not a directory.
1227 (or top (dired-handle-overwrite to))
1228 (condition-case err
1229 (if (stringp (car attrs))
1230 ;; It is a symlink
1231 (make-symbolic-link (car attrs) to ok-flag)
1232 (copy-file from to ok-flag dired-copy-preserve-time))
1233 (file-date-error
1234 (push (dired-make-relative from)
1235 dired-create-files-failures)
1236 (dired-log "Can't set date on %s:\n%s\n" from err))))))
1238 ;;;###autoload
1239 (defun dired-rename-file (file newname ok-if-already-exists)
1240 (dired-handle-overwrite newname)
1241 (rename-file file newname ok-if-already-exists) ; error is caught in -create-files
1242 ;; Silently rename the visited file of any buffer visiting this file.
1243 (and (get-file-buffer file)
1244 (with-current-buffer (get-file-buffer file)
1245 (set-visited-file-name newname nil t)))
1246 (dired-remove-file file)
1247 ;; See if it's an inserted subdir, and rename that, too.
1248 (dired-rename-subdir file newname))
1250 (defun dired-rename-subdir (from-dir to-dir)
1251 (setq from-dir (file-name-as-directory from-dir)
1252 to-dir (file-name-as-directory to-dir))
1253 (dired-fun-in-all-buffers from-dir nil
1254 (function dired-rename-subdir-1) from-dir to-dir)
1255 ;; Update visited file name of all affected buffers
1256 (let ((expanded-from-dir (expand-file-name from-dir))
1257 (blist (buffer-list)))
1258 (while blist
1259 (with-current-buffer (car blist)
1260 (if (and buffer-file-name
1261 (dired-in-this-tree buffer-file-name expanded-from-dir))
1262 (let ((modflag (buffer-modified-p))
1263 (to-file (dired-replace-in-string
1264 (concat "^" (regexp-quote from-dir))
1265 to-dir
1266 buffer-file-name)))
1267 (set-visited-file-name to-file)
1268 (set-buffer-modified-p modflag))))
1269 (setq blist (cdr blist)))))
1271 (defun dired-rename-subdir-1 (dir to)
1272 ;; Rename DIR to TO in headerlines and dired-subdir-alist, if DIR or
1273 ;; one of its subdirectories is expanded in this buffer.
1274 (let ((expanded-dir (expand-file-name dir))
1275 (alist dired-subdir-alist)
1276 (elt nil))
1277 (while alist
1278 (setq elt (car alist)
1279 alist (cdr alist))
1280 (if (dired-in-this-tree (car elt) expanded-dir)
1281 ;; ELT's subdir is affected by the rename
1282 (dired-rename-subdir-2 elt dir to)))
1283 (if (equal dir default-directory)
1284 ;; if top level directory was renamed, lots of things have to be
1285 ;; updated:
1286 (progn
1287 (dired-unadvertise dir) ; we no longer dired DIR...
1288 (setq default-directory to
1289 dired-directory (expand-file-name;; this is correct
1290 ;; with and without wildcards
1291 (file-name-nondirectory dired-directory)
1292 to))
1293 (let ((new-name (file-name-nondirectory
1294 (directory-file-name dired-directory))))
1295 ;; try to rename buffer, but just leave old name if new
1296 ;; name would already exist (don't try appending "<%d>")
1297 (or (get-buffer new-name)
1298 (rename-buffer new-name)))
1299 ;; ... we dired TO now:
1300 (dired-advertise)))))
1302 (defun dired-rename-subdir-2 (elt dir to)
1303 ;; Update the headerline and dired-subdir-alist element, as well as
1304 ;; dired-switches-alist element, of directory described by
1305 ;; alist-element ELT to reflect the moving of DIR to TO. Thus, ELT
1306 ;; describes either DIR itself or a subdir of DIR.
1307 (save-excursion
1308 (let ((regexp (regexp-quote (directory-file-name dir)))
1309 (newtext (directory-file-name to))
1310 buffer-read-only)
1311 (goto-char (dired-get-subdir-min elt))
1312 ;; Update subdir headerline in buffer
1313 (if (not (looking-at dired-subdir-regexp))
1314 (error "%s not found where expected - dired-subdir-alist broken?"
1315 dir)
1316 (goto-char (match-beginning 1))
1317 (if (re-search-forward regexp (match-end 1) t)
1318 (replace-match newtext t t)
1319 (error "Expected to find `%s' in headerline of %s" dir (car elt))))
1320 ;; Update buffer-local dired-subdir-alist and dired-switches-alist
1321 (let ((cons (assoc-string (car elt) dired-switches-alist))
1322 (cur-dir (dired-normalize-subdir
1323 (dired-replace-in-string regexp newtext (car elt)))))
1324 (setcar elt cur-dir)
1325 (when cons (setcar cons cur-dir))))))
1327 ;; The basic function for half a dozen variations on cp/mv/ln/ln -s.
1328 (defun dired-create-files (file-creator operation fn-list name-constructor
1329 &optional marker-char)
1331 ;; Create a new file for each from a list of existing files. The user
1332 ;; is queried, dired buffers are updated, and at the end a success or
1333 ;; failure message is displayed
1335 ;; FILE-CREATOR must accept three args: oldfile newfile ok-if-already-exists
1337 ;; It is called for each file and must create newfile, the entry of
1338 ;; which will be added. The user will be queried if the file already
1339 ;; exists. If oldfile is removed by FILE-CREATOR (i.e, it is a
1340 ;; rename), it is FILE-CREATOR's responsibility to update dired
1341 ;; buffers. FILE-CREATOR must abort by signaling a file-error if it
1342 ;; could not create newfile. The error is caught and logged.
1344 ;; OPERATION (a capitalized string, e.g. `Copy') describes the
1345 ;; operation performed. It is used for error logging.
1347 ;; FN-LIST is the list of files to copy (full absolute file names).
1349 ;; NAME-CONSTRUCTOR returns a newfile for every oldfile, or nil to
1350 ;; skip. If it skips files for other reasons than a direct user
1351 ;; query, it is supposed to tell why (using dired-log).
1353 ;; Optional MARKER-CHAR is a character with which to mark every
1354 ;; newfile's entry, or t to use the current marker character if the
1355 ;; oldfile was marked.
1357 (let (dired-create-files-failures failures
1358 skipped (success-count 0) (total (length fn-list)))
1359 (let (to overwrite-query
1360 overwrite-backup-query) ; for dired-handle-overwrite
1361 (dolist (from fn-list)
1362 (setq to (funcall name-constructor from))
1363 (if (equal to from)
1364 (progn
1365 (setq to nil)
1366 (dired-log "Cannot %s to same file: %s\n"
1367 (downcase operation) from)))
1368 (if (not to)
1369 (setq skipped (cons (dired-make-relative from) skipped))
1370 (let* ((overwrite (file-exists-p to))
1371 (dired-overwrite-confirmed ; for dired-handle-overwrite
1372 (and overwrite
1373 (let ((help-form '(format "\
1374 Type SPC or `y' to overwrite file `%s',
1375 DEL or `n' to skip to next,
1376 ESC or `q' to not overwrite any of the remaining files,
1377 `!' to overwrite all remaining files with no more questions." to)))
1378 (dired-query 'overwrite-query
1379 "Overwrite `%s'?" to))))
1380 ;; must determine if FROM is marked before file-creator
1381 ;; gets a chance to delete it (in case of a move).
1382 (actual-marker-char
1383 (cond ((integerp marker-char) marker-char)
1384 (marker-char (dired-file-marker from)) ; slow
1385 (t nil))))
1386 (condition-case err
1387 (progn
1388 (funcall file-creator from to dired-overwrite-confirmed)
1389 (if overwrite
1390 ;; If we get here, file-creator hasn't been aborted
1391 ;; and the old entry (if any) has to be deleted
1392 ;; before adding the new entry.
1393 (dired-remove-file to))
1394 (setq success-count (1+ success-count))
1395 (message "%s: %d of %d" operation success-count total)
1396 (dired-add-file to actual-marker-char))
1397 (file-error ; FILE-CREATOR aborted
1398 (progn
1399 (push (dired-make-relative from)
1400 failures)
1401 (dired-log "%s `%s' to `%s' failed:\n%s\n"
1402 operation from to err))))))))
1403 (cond
1404 (dired-create-files-failures
1405 (setq failures (nconc failures dired-create-files-failures))
1406 (dired-log-summary
1407 (format "%s failed for %d file%s in %d requests"
1408 operation (length failures)
1409 (dired-plural-s (length failures))
1410 total)
1411 failures))
1412 (failures
1413 (dired-log-summary
1414 (format "%s failed for %d of %d file%s"
1415 operation (length failures)
1416 total (dired-plural-s total))
1417 failures))
1418 (skipped
1419 (dired-log-summary
1420 (format "%s: %d of %d file%s skipped"
1421 operation (length skipped) total
1422 (dired-plural-s total))
1423 skipped))
1425 (message "%s: %s file%s"
1426 operation success-count (dired-plural-s success-count)))))
1427 (dired-move-to-filename))
1429 (defun dired-do-create-files (op-symbol file-creator operation arg
1430 &optional marker-char op1
1431 how-to)
1432 "Create a new file for each marked file.
1433 Prompts user for target, which is a directory in which to create
1434 the new files. Target may also be a plain file if only one marked
1435 file exists. The way the default for the target directory is
1436 computed depends on the value of `dired-dwim-target-directory'.
1437 OP-SYMBOL is the symbol for the operation. Function `dired-mark-pop-up'
1438 will determine whether pop-ups are appropriate for this OP-SYMBOL.
1439 FILE-CREATOR and OPERATION as in `dired-create-files'.
1440 ARG as in `dired-get-marked-files'.
1441 Optional arg MARKER-CHAR as in `dired-create-files'.
1442 Optional arg OP1 is an alternate form for OPERATION if there is
1443 only one file.
1444 Optional arg HOW-TO determiness how to treat the target.
1445 If HOW-TO is nil, use `file-directory-p' to determine if the
1446 target is a directory. If so, the marked file(s) are created
1447 inside that directory. Otherwise, the target is a plain file;
1448 an error is raised unless there is exactly one marked file.
1449 If HOW-TO is t, target is always treated as a plain file.
1450 Otherwise, HOW-TO should be a function of one argument, TARGET.
1451 If its return value is nil, TARGET is regarded as a plain file.
1452 If it return value is a list, TARGET is a generalized
1453 directory (e.g. some sort of archive). The first element of
1454 this list must be a function with at least four arguments:
1455 operation - as OPERATION above.
1456 rfn-list - list of the relative names for the marked files.
1457 fn-list - list of the absolute names for the marked files.
1458 target - the name of the target itself.
1459 The rest of into-dir are optional arguments.
1460 For any other return value, TARGET is treated as a directory."
1461 (or op1 (setq op1 operation))
1462 (let* ((fn-list (dired-get-marked-files nil arg))
1463 (rfn-list (mapcar (function dired-make-relative) fn-list))
1464 (dired-one-file ; fluid variable inside dired-create-files
1465 (and (consp fn-list) (null (cdr fn-list)) (car fn-list)))
1466 (target-dir (dired-dwim-target-directory))
1467 (default (and dired-one-file
1468 (expand-file-name (file-name-nondirectory (car fn-list))
1469 target-dir)))
1470 (defaults (dired-dwim-target-defaults fn-list target-dir))
1471 (target (expand-file-name ; fluid variable inside dired-create-files
1472 (minibuffer-with-setup-hook
1473 (lambda ()
1474 (set (make-local-variable 'minibuffer-default-add-function) nil)
1475 (setq minibuffer-default defaults))
1476 (dired-mark-read-file-name
1477 (concat (if dired-one-file op1 operation) " %s to: ")
1478 target-dir op-symbol arg rfn-list default))))
1479 (into-dir (cond ((null how-to)
1480 ;; Allow DOS/Windows users to change the letter
1481 ;; case of a directory. If we don't test these
1482 ;; conditions up front, file-directory-p below
1483 ;; will return t because the filesystem is
1484 ;; case-insensitive, and Emacs will try to move
1485 ;; foo -> foo/foo, which fails.
1486 (if (and (memq system-type '(ms-dos windows-nt cygwin))
1487 (eq op-symbol 'move)
1488 dired-one-file
1489 (string= (downcase
1490 (expand-file-name (car fn-list)))
1491 (downcase
1492 (expand-file-name target)))
1493 (not (string=
1494 (file-name-nondirectory (car fn-list))
1495 (file-name-nondirectory target))))
1497 (file-directory-p target)))
1498 ((eq how-to t) nil)
1499 (t (funcall how-to target)))))
1500 (if (and (consp into-dir) (functionp (car into-dir)))
1501 (apply (car into-dir) operation rfn-list fn-list target (cdr into-dir))
1502 (if (not (or dired-one-file into-dir))
1503 (error "Marked %s: target must be a directory: %s" operation target))
1504 ;; rename-file bombs when moving directories unless we do this:
1505 (or into-dir (setq target (directory-file-name target)))
1506 (dired-create-files
1507 file-creator operation fn-list
1508 (if into-dir ; target is a directory
1509 ;; This function uses fluid variable target when called
1510 ;; inside dired-create-files:
1511 (function
1512 (lambda (from)
1513 (expand-file-name (file-name-nondirectory from) target)))
1514 (function (lambda (from) target)))
1515 marker-char))))
1517 ;; Read arguments for a marked-files command that wants a file name,
1518 ;; perhaps popping up the list of marked files.
1519 ;; ARG is the prefix arg and indicates whether the files came from
1520 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
1521 ;; If the current file was used, the list has but one element and ARG
1522 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
1523 ;; DEFAULT is the default value to return if the user just hits RET;
1524 ;; if it is omitted or nil, then the name of the directory is used.
1526 (defun dired-mark-read-file-name (prompt dir op-symbol arg files
1527 &optional default)
1528 (dired-mark-pop-up
1529 nil op-symbol files
1530 (function read-file-name)
1531 (format prompt (dired-mark-prompt arg files)) dir default))
1533 (defun dired-dwim-target-directory ()
1534 ;; Try to guess which target directory the user may want.
1535 ;; If there is a dired buffer displayed in one of the next windows,
1536 ;; use its current subdir, else use current subdir of this dired buffer.
1537 (let ((this-dir (and (eq major-mode 'dired-mode)
1538 (dired-current-directory))))
1539 ;; non-dired buffer may want to profit from this function, e.g. vm-uudecode
1540 (if dired-dwim-target
1541 (let* ((other-win (get-window-with-predicate
1542 (lambda (window)
1543 (with-current-buffer (window-buffer window)
1544 (eq major-mode 'dired-mode)))))
1545 (other-dir (and other-win
1546 (with-current-buffer (window-buffer other-win)
1547 (and (eq major-mode 'dired-mode)
1548 (dired-current-directory))))))
1549 (or other-dir this-dir))
1550 this-dir)))
1552 (defun dired-dwim-target-defaults (fn-list target-dir)
1553 ;; Return a list of default values for file-reading functions in Dired.
1554 ;; This list may contain directories from Dired buffers in other windows.
1555 ;; `fn-list' is a list of file names used to build a list of defaults.
1556 ;; When nil or more than one element, a list of defaults will
1557 ;; contain only directory names. `target-dir' is a directory name
1558 ;; to exclude from the returned list, for the case when this
1559 ;; directory name is already presented in initial input.
1560 ;; For Dired operations that support `dired-dwim-target',
1561 ;; the argument `target-dir' should have the value returned
1562 ;; from `dired-dwim-target-directory'.
1563 (let ((dired-one-file
1564 (and (consp fn-list) (null (cdr fn-list)) (car fn-list)))
1565 (current-dir (and (eq major-mode 'dired-mode)
1566 (dired-current-directory)))
1567 dired-dirs)
1568 ;; Get a list of directories of visible buffers in dired-mode.
1569 (walk-windows (lambda (w)
1570 (with-current-buffer (window-buffer w)
1571 (and (eq major-mode 'dired-mode)
1572 (push (dired-current-directory) dired-dirs)))))
1573 ;; Force the current dir to be the first in the list.
1574 (setq dired-dirs
1575 (delete-dups (delq nil (cons current-dir (nreverse dired-dirs)))))
1576 ;; Remove the target dir (if specified) or the current dir from
1577 ;; default values, because it should be already in initial input.
1578 (setq dired-dirs (delete (or target-dir current-dir) dired-dirs))
1579 ;; Return a list of default values.
1580 (if dired-one-file
1581 ;; For one file operation, provide a list that contains
1582 ;; other directories, other directories with the appended filename
1583 ;; and the current directory with the appended filename, e.g.
1584 ;; 1. /TARGET-DIR/
1585 ;; 2. /TARGET-DIR/FILENAME
1586 ;; 3. /CURRENT-DIR/FILENAME
1587 (append dired-dirs
1588 (mapcar (lambda (dir)
1589 (expand-file-name
1590 (file-name-nondirectory (car fn-list)) dir))
1591 (reverse dired-dirs))
1592 (list (expand-file-name
1593 (file-name-nondirectory (car fn-list))
1594 (or target-dir current-dir))))
1595 ;; For multi-file operation, return only a list of other directories.
1596 dired-dirs)))
1599 ;;;###autoload
1600 (defun dired-create-directory (directory)
1601 "Create a directory called DIRECTORY."
1602 (interactive
1603 (list (read-file-name "Create directory: " (dired-current-directory))))
1604 (let* ((expanded (directory-file-name (expand-file-name directory)))
1605 (try expanded) new)
1606 ;; Find the topmost nonexistent parent dir (variable `new')
1607 (while (and try (not (file-exists-p try)) (not (equal new try)))
1608 (setq new try
1609 try (directory-file-name (file-name-directory try))))
1610 (make-directory expanded t)
1611 (when new
1612 (dired-add-file new)
1613 (dired-move-to-filename))))
1615 (defun dired-into-dir-with-symlinks (target)
1616 (and (file-directory-p target)
1617 (not (file-symlink-p target))))
1618 ;; This may not always be what you want, especially if target is your
1619 ;; home directory and it happens to be a symbolic link, as is often the
1620 ;; case with NFS and automounters. Or if you want to make symlinks
1621 ;; into directories that themselves are only symlinks, also quite
1622 ;; common.
1624 ;; So we don't use this function as value for HOW-TO in
1625 ;; dired-do-symlink, which has the minor disadvantage of
1626 ;; making links *into* a symlinked-dir, when you really wanted to
1627 ;; *overwrite* that symlink. In that (rare, I guess) case, you'll
1628 ;; just have to remove that symlink by hand before making your marked
1629 ;; symlinks.
1631 (defvar dired-copy-how-to-fn nil
1632 "Either nil or a function used by `dired-do-copy' to determine target.
1633 See HOW-TO argument for `dired-do-create-files'.")
1635 ;;;###autoload
1636 (defun dired-do-copy (&optional arg)
1637 "Copy all marked (or next ARG) files, or copy the current file.
1638 This normally preserves the last-modified date when copying.
1639 When operating on just the current file, you specify the new name.
1640 When operating on multiple or marked files, you specify a directory,
1641 and new copies of these files are made in that directory
1642 with the same names that the files currently have. The default
1643 suggested for the target directory depends on the value of
1644 `dired-dwim-target', which see.
1646 This command copies symbolic links by creating new ones,
1647 like `cp -d'."
1648 (interactive "P")
1649 (let ((dired-recursive-copies dired-recursive-copies))
1650 (dired-do-create-files 'copy (function dired-copy-file)
1651 "Copy"
1652 arg dired-keep-marker-copy
1653 nil dired-copy-how-to-fn)))
1655 ;;;###autoload
1656 (defun dired-do-symlink (&optional arg)
1657 "Make symbolic links to current file or all marked (or next ARG) files.
1658 When operating on just the current file, you specify the new name.
1659 When operating on multiple or marked files, you specify a directory
1660 and new symbolic links are made in that directory
1661 with the same names that the files currently have. The default
1662 suggested for the target directory depends on the value of
1663 `dired-dwim-target', which see.
1665 For relative symlinks, use \\[dired-do-relsymlink]."
1666 (interactive "P")
1667 (dired-do-create-files 'symlink (function make-symbolic-link)
1668 "Symlink" arg dired-keep-marker-symlink))
1670 ;;;###autoload
1671 (defun dired-do-hardlink (&optional arg)
1672 "Add names (hard links) current file or all marked (or next ARG) files.
1673 When operating on just the current file, you specify the new name.
1674 When operating on multiple or marked files, you specify a directory
1675 and new hard links are made in that directory
1676 with the same names that the files currently have. The default
1677 suggested for the target directory depends on the value of
1678 `dired-dwim-target', which see."
1679 (interactive "P")
1680 (dired-do-create-files 'hardlink (function dired-hardlink)
1681 "Hardlink" arg dired-keep-marker-hardlink))
1683 (defun dired-hardlink (file newname &optional ok-if-already-exists)
1684 (dired-handle-overwrite newname)
1685 ;; error is caught in -create-files
1686 (add-name-to-file file newname ok-if-already-exists)
1687 ;; Update the link count
1688 (dired-relist-file file))
1690 ;;;###autoload
1691 (defun dired-do-rename (&optional arg)
1692 "Rename current file or all marked (or next ARG) files.
1693 When renaming just the current file, you specify the new name.
1694 When renaming multiple or marked files, you specify a directory.
1695 This command also renames any buffers that are visiting the files.
1696 The default suggested for the target directory depends on the value
1697 of `dired-dwim-target', which see."
1698 (interactive "P")
1699 (dired-do-create-files 'move (function dired-rename-file)
1700 "Move" arg dired-keep-marker-rename "Rename"))
1701 ;;;###end dired-cp.el
1703 ;;; 5K
1704 ;;;###begin dired-re.el
1705 (defun dired-do-create-files-regexp
1706 (file-creator operation arg regexp newname &optional whole-name marker-char)
1707 ;; Create a new file for each marked file using regexps.
1708 ;; FILE-CREATOR and OPERATION as in dired-create-files.
1709 ;; ARG as in dired-get-marked-files.
1710 ;; Matches each marked file against REGEXP and constructs the new
1711 ;; filename from NEWNAME (like in function replace-match).
1712 ;; Optional arg WHOLE-NAME means match/replace the whole file name
1713 ;; instead of only the non-directory part of the file.
1714 ;; Optional arg MARKER-CHAR as in dired-create-files.
1715 (let* ((fn-list (dired-get-marked-files nil arg))
1716 (fn-count (length fn-list))
1717 (operation-prompt (concat operation " `%s' to `%s'?"))
1718 (rename-regexp-help-form (format "\
1719 Type SPC or `y' to %s one match, DEL or `n' to skip to next,
1720 `!' to %s all remaining matches with no more questions."
1721 (downcase operation)
1722 (downcase operation)))
1723 (regexp-name-constructor
1724 ;; Function to construct new filename using REGEXP and NEWNAME:
1725 (if whole-name ; easy (but rare) case
1726 (function
1727 (lambda (from)
1728 (let ((to (dired-string-replace-match regexp from newname))
1729 ;; must bind help-form directly around call to
1730 ;; dired-query
1731 (help-form rename-regexp-help-form))
1732 (if to
1733 (and (dired-query 'rename-regexp-query
1734 operation-prompt
1735 from
1738 (dired-log "%s: %s did not match regexp %s\n"
1739 operation from regexp)))))
1740 ;; not whole-name, replace non-directory part only
1741 (function
1742 (lambda (from)
1743 (let* ((new (dired-string-replace-match
1744 regexp (file-name-nondirectory from) newname))
1745 (to (and new ; nil means there was no match
1746 (expand-file-name new
1747 (file-name-directory from))))
1748 (help-form rename-regexp-help-form))
1749 (if to
1750 (and (dired-query 'rename-regexp-query
1751 operation-prompt
1752 (dired-make-relative from)
1753 (dired-make-relative to))
1755 (dired-log "%s: %s did not match regexp %s\n"
1756 operation (file-name-nondirectory from) regexp)))))))
1757 rename-regexp-query)
1758 (dired-create-files
1759 file-creator operation fn-list regexp-name-constructor marker-char)))
1761 (defun dired-mark-read-regexp (operation)
1762 ;; Prompt user about performing OPERATION.
1763 ;; Read and return list of: regexp newname arg whole-name.
1764 (let* ((whole-name
1765 (equal 0 (prefix-numeric-value current-prefix-arg)))
1766 (arg
1767 (if whole-name nil current-prefix-arg))
1768 (regexp
1769 (dired-read-regexp
1770 (concat (if whole-name "Abs. " "") operation " from (regexp): ")))
1771 (newname
1772 (read-string
1773 (concat (if whole-name "Abs. " "") operation " " regexp " to: "))))
1774 (list regexp newname arg whole-name)))
1776 ;;;###autoload
1777 (defun dired-do-rename-regexp (regexp newname &optional arg whole-name)
1778 "Rename selected files whose names match REGEXP to NEWNAME.
1780 With non-zero prefix argument ARG, the command operates on the next ARG
1781 files. Otherwise, it operates on all the marked files, or the current
1782 file if none are marked.
1784 As each match is found, the user must type a character saying
1785 what to do with it. For directions, type \\[help-command] at that time.
1786 NEWNAME may contain \\=\\<n> or \\& as in `query-replace-regexp'.
1787 REGEXP defaults to the last regexp used.
1789 With a zero prefix arg, renaming by regexp affects the absolute file name.
1790 Normally, only the non-directory part of the file name is used and changed."
1791 (interactive (dired-mark-read-regexp "Rename"))
1792 (dired-do-create-files-regexp
1793 (function dired-rename-file)
1794 "Rename" arg regexp newname whole-name dired-keep-marker-rename))
1796 ;;;###autoload
1797 (defun dired-do-copy-regexp (regexp newname &optional arg whole-name)
1798 "Copy selected files whose names match REGEXP to NEWNAME.
1799 See function `dired-do-rename-regexp' for more info."
1800 (interactive (dired-mark-read-regexp "Copy"))
1801 (let ((dired-recursive-copies nil)) ; No recursive copies.
1802 (dired-do-create-files-regexp
1803 (function dired-copy-file)
1804 (if dired-copy-preserve-time "Copy [-p]" "Copy")
1805 arg regexp newname whole-name dired-keep-marker-copy)))
1807 ;;;###autoload
1808 (defun dired-do-hardlink-regexp (regexp newname &optional arg whole-name)
1809 "Hardlink selected files whose names match REGEXP to NEWNAME.
1810 See function `dired-do-rename-regexp' for more info."
1811 (interactive (dired-mark-read-regexp "HardLink"))
1812 (dired-do-create-files-regexp
1813 (function add-name-to-file)
1814 "HardLink" arg regexp newname whole-name dired-keep-marker-hardlink))
1816 ;;;###autoload
1817 (defun dired-do-symlink-regexp (regexp newname &optional arg whole-name)
1818 "Symlink selected files whose names match REGEXP to NEWNAME.
1819 See function `dired-do-rename-regexp' for more info."
1820 (interactive (dired-mark-read-regexp "SymLink"))
1821 (dired-do-create-files-regexp
1822 (function make-symbolic-link)
1823 "SymLink" arg regexp newname whole-name dired-keep-marker-symlink))
1825 (defun dired-create-files-non-directory
1826 (file-creator basename-constructor operation arg)
1827 ;; Perform FILE-CREATOR on the non-directory part of marked files
1828 ;; using function BASENAME-CONSTRUCTOR, with query for each file.
1829 ;; OPERATION like in dired-create-files, ARG as in dired-get-marked-files.
1830 (let (rename-non-directory-query)
1831 (dired-create-files
1832 file-creator
1833 operation
1834 (dired-get-marked-files nil arg)
1835 (function
1836 (lambda (from)
1837 (let ((to (concat (file-name-directory from)
1838 (funcall basename-constructor
1839 (file-name-nondirectory from)))))
1840 (and (let ((help-form (format "\
1841 Type SPC or `y' to %s one file, DEL or `n' to skip to next,
1842 `!' to %s all remaining matches with no more questions."
1843 (downcase operation)
1844 (downcase operation))))
1845 (dired-query 'rename-non-directory-query
1846 (concat operation " `%s' to `%s'")
1847 (dired-make-relative from)
1848 (dired-make-relative to)))
1849 to))))
1850 dired-keep-marker-rename)))
1852 (defun dired-rename-non-directory (basename-constructor operation arg)
1853 (dired-create-files-non-directory
1854 (function dired-rename-file)
1855 basename-constructor operation arg))
1857 ;;;###autoload
1858 (defun dired-upcase (&optional arg)
1859 "Rename all marked (or next ARG) files to upper case."
1860 (interactive "P")
1861 (dired-rename-non-directory (function upcase) "Rename upcase" arg))
1863 ;;;###autoload
1864 (defun dired-downcase (&optional arg)
1865 "Rename all marked (or next ARG) files to lower case."
1866 (interactive "P")
1867 (dired-rename-non-directory (function downcase) "Rename downcase" arg))
1869 ;;;###end dired-re.el
1871 ;;; 13K
1872 ;;;###begin dired-ins.el
1874 ;;;###autoload
1875 (defun dired-maybe-insert-subdir (dirname &optional
1876 switches no-error-if-not-dir-p)
1877 "Insert this subdirectory into the same dired buffer.
1878 If it is already present, just move to it (type \\[dired-do-redisplay] to refresh),
1879 else inserts it at its natural place (as `ls -lR' would have done).
1880 With a prefix arg, you may edit the ls switches used for this listing.
1881 You can add `R' to the switches to expand the whole tree starting at
1882 this subdirectory.
1883 This function takes some pains to conform to `ls -lR' output.
1885 Dired remembers switches specified with a prefix arg, so that reverting
1886 the buffer will not reset them. However, using `dired-undo' to re-insert
1887 or delete subdirectories can bypass this machinery. Hence, you sometimes
1888 may have to reset some subdirectory switches after a `dired-undo'.
1889 You can reset all subdirectory switches to the default using
1890 \\<dired-mode-map>\\[dired-reset-subdir-switches].
1891 See Info node `(emacs)Subdir switches' for more details."
1892 (interactive
1893 (list (dired-get-filename)
1894 (if current-prefix-arg
1895 (read-string "Switches for listing: "
1896 (or dired-subdir-switches dired-actual-switches)))))
1897 (let ((opoint (point)))
1898 ;; We don't need a marker for opoint as the subdir is always
1899 ;; inserted *after* opoint.
1900 (setq dirname (file-name-as-directory dirname))
1901 (or (and (not switches)
1902 (dired-goto-subdir dirname))
1903 (dired-insert-subdir dirname switches no-error-if-not-dir-p))
1904 ;; Push mark so that it's easy to find back. Do this after the
1905 ;; insert message so that the user sees the `Mark set' message.
1906 (push-mark opoint)))
1908 ;;;###autoload
1909 (defun dired-insert-subdir (dirname &optional switches no-error-if-not-dir-p)
1910 "Insert this subdirectory into the same dired buffer.
1911 If it is already present, overwrites previous entry,
1912 else inserts it at its natural place (as `ls -lR' would have done).
1913 With a prefix arg, you may edit the `ls' switches used for this listing.
1914 You can add `R' to the switches to expand the whole tree starting at
1915 this subdirectory.
1916 This function takes some pains to conform to `ls -lR' output."
1917 ;; NO-ERROR-IF-NOT-DIR-P needed for special filesystems like
1918 ;; Prospero where dired-ls does the right thing, but
1919 ;; file-directory-p has not been redefined.
1920 (interactive
1921 (list (dired-get-filename)
1922 (if current-prefix-arg
1923 (read-string "Switches for listing: "
1924 (or dired-subdir-switches dired-actual-switches)))))
1925 (setq dirname (file-name-as-directory (expand-file-name dirname)))
1926 (or no-error-if-not-dir-p
1927 (file-directory-p dirname)
1928 (error "Attempt to insert a non-directory: %s" dirname))
1929 (let ((elt (assoc dirname dired-subdir-alist))
1930 (cons (assoc-string dirname dired-switches-alist))
1931 (modflag (buffer-modified-p))
1932 (old-switches switches)
1933 switches-have-R mark-alist case-fold-search buffer-read-only)
1934 (and (not switches) cons (setq switches (cdr cons)))
1935 (dired-insert-subdir-validate dirname switches)
1936 ;; case-fold-search is nil now, so we can test for capital `R':
1937 (if (setq switches-have-R (and switches (string-match "R" switches)))
1938 ;; avoid duplicated subdirs
1939 (setq mark-alist (dired-kill-tree dirname t)))
1940 (if elt
1941 ;; If subdir is already present, remove it and remember its marks
1942 (setq mark-alist (nconc (dired-insert-subdir-del elt) mark-alist))
1943 (dired-insert-subdir-newpos dirname)) ; else compute new position
1944 (dired-insert-subdir-doupdate
1945 dirname elt (dired-insert-subdir-doinsert dirname switches))
1946 (when old-switches
1947 (if cons
1948 (setcdr cons switches)
1949 (push (cons dirname switches) dired-switches-alist)))
1950 (when switches-have-R
1951 (dired-build-subdir-alist switches)
1952 (setq switches (dired-replace-in-string "R" "" switches))
1953 (dolist (cur-ass dired-subdir-alist)
1954 (let ((cur-dir (car cur-ass)))
1955 (and (dired-in-this-tree cur-dir dirname)
1956 (let ((cur-cons (assoc-string cur-dir dired-switches-alist)))
1957 (if cur-cons
1958 (setcdr cur-cons switches)
1959 (push (cons cur-dir switches) dired-switches-alist)))))))
1960 (dired-initial-position dirname)
1961 (save-excursion (dired-mark-remembered mark-alist))
1962 (restore-buffer-modified-p modflag)))
1964 (defun dired-insert-subdir-validate (dirname &optional switches)
1965 ;; Check that it is valid to insert DIRNAME with SWITCHES.
1966 ;; Signal an error if invalid (e.g. user typed `i' on `..').
1967 (or (dired-in-this-tree dirname (expand-file-name default-directory))
1968 (error "%s: not in this directory tree" dirname))
1969 (let ((real-switches (or switches dired-subdir-switches)))
1970 (when real-switches
1971 (let (case-fold-search)
1972 (mapcar
1973 (function
1974 (lambda (x)
1975 (or (eq (null (string-match x real-switches))
1976 (null (string-match x dired-actual-switches)))
1977 (error
1978 "Can't have dirs with and without -%s switches together" x))))
1979 ;; all switches that make a difference to dired-get-filename:
1980 '("F" "b"))))))
1982 (defun dired-alist-add (dir new-marker)
1983 ;; Add new DIR at NEW-MARKER. Sort alist.
1984 (dired-alist-add-1 dir new-marker)
1985 (dired-alist-sort))
1987 (defun dired-alist-sort ()
1988 ;; Keep the alist sorted on buffer position.
1989 (setq dired-subdir-alist
1990 (sort dired-subdir-alist
1991 (function (lambda (elt1 elt2)
1992 (> (dired-get-subdir-min elt1)
1993 (dired-get-subdir-min elt2)))))))
1995 (defun dired-kill-tree (dirname &optional remember-marks kill-root)
1996 "Kill all proper subdirs of DIRNAME, excluding DIRNAME itself.
1997 Interactively, you can kill DIRNAME as well by using a prefix argument.
1998 In interactive use, the command prompts for DIRNAME.
2000 When called from Lisp, if REMEMBER-MARKS is non-nil, return an alist
2001 of marked files. If KILL-ROOT is non-nil, kill DIRNAME as well."
2002 (interactive "DKill tree below directory: \ni\nP")
2003 (setq dirname (file-name-as-directory (expand-file-name dirname)))
2004 (let ((s-alist dired-subdir-alist) dir m-alist)
2005 (while s-alist
2006 (setq dir (car (car s-alist))
2007 s-alist (cdr s-alist))
2008 (and (or kill-root (not (string-equal dir dirname)))
2009 (dired-in-this-tree dir dirname)
2010 (dired-goto-subdir dir)
2011 (setq m-alist (nconc (dired-kill-subdir remember-marks) m-alist))))
2012 m-alist))
2014 (defun dired-insert-subdir-newpos (new-dir)
2015 ;; Find pos for new subdir, according to tree order.
2016 ;;(goto-char (point-max))
2017 (let ((alist dired-subdir-alist) elt dir pos new-pos)
2018 (while alist
2019 (setq elt (car alist)
2020 alist (cdr alist)
2021 dir (car elt)
2022 pos (dired-get-subdir-min elt))
2023 (if (dired-tree-lessp dir new-dir)
2024 ;; Insert NEW-DIR after DIR
2025 (setq new-pos (dired-get-subdir-max elt)
2026 alist nil)))
2027 (goto-char new-pos))
2028 ;; want a separating newline between subdirs
2029 (or (eobp)
2030 (forward-line -1))
2031 (insert "\n")
2032 (point))
2034 (defun dired-insert-subdir-del (element)
2035 ;; Erase an already present subdir (given by ELEMENT) from buffer.
2036 ;; Move to that buffer position. Return a mark-alist.
2037 (let ((begin-marker (dired-get-subdir-min element)))
2038 (goto-char begin-marker)
2039 ;; Are at beginning of subdir (and inside it!). Now determine its end:
2040 (goto-char (dired-subdir-max))
2041 (or (eobp);; want a separating newline _between_ subdirs:
2042 (forward-char -1))
2043 (prog1
2044 (dired-remember-marks begin-marker (point))
2045 (delete-region begin-marker (point)))))
2047 (defun dired-insert-subdir-doinsert (dirname switches)
2048 ;; Insert ls output after point.
2049 ;; Return the boundary of the inserted text (as list of BEG and END).
2050 (save-excursion
2051 (let ((begin (point)))
2052 (let ((dired-actual-switches
2053 (or switches
2054 dired-subdir-switches
2055 (dired-replace-in-string "R" "" dired-actual-switches))))
2056 (if (equal dirname (car (car (last dired-subdir-alist))))
2057 ;; If doing the top level directory of the buffer,
2058 ;; redo it as specified in dired-directory.
2059 (dired-readin-insert)
2060 (dired-insert-directory dirname dired-actual-switches nil nil t)))
2061 (list begin (point)))))
2063 (defun dired-insert-subdir-doupdate (dirname elt beg-end)
2064 ;; Point is at the correct subdir alist position for ELT,
2065 ;; BEG-END is the subdir-region (as list of begin and end).
2066 (if elt ; subdir was already present
2067 ;; update its position (should actually be unchanged)
2068 (set-marker (dired-get-subdir-min elt) (point-marker))
2069 (dired-alist-add dirname (point-marker)))
2070 ;; The hook may depend on the subdir-alist containing the just
2071 ;; inserted subdir, so run it after dired-alist-add:
2072 (if dired-after-readin-hook
2073 (save-excursion
2074 (let ((begin (nth 0 beg-end))
2075 (end (nth 1 beg-end)))
2076 (goto-char begin)
2077 (save-restriction
2078 (narrow-to-region begin end)
2079 ;; hook may add or delete lines, but the subdir boundary
2080 ;; marker floats
2081 (run-hooks 'dired-after-readin-hook))))))
2083 (defun dired-tree-lessp (dir1 dir2)
2084 ;; Lexicographic order on file name components, like `ls -lR':
2085 ;; DIR1 < DIR2 if DIR1 comes *before* DIR2 in an `ls -lR' listing,
2086 ;; i.e., if DIR1 is a (grand)parent dir of DIR2,
2087 ;; or DIR1 and DIR2 are in the same parentdir and their last
2088 ;; components are string-lessp.
2089 ;; Thus ("/usr/" "/usr/bin") and ("/usr/a/" "/usr/b/") are tree-lessp.
2090 ;; string-lessp could arguably be replaced by file-newer-than-file-p
2091 ;; if dired-actual-switches contained `t'.
2092 (setq dir1 (file-name-as-directory dir1)
2093 dir2 (file-name-as-directory dir2))
2094 (let ((components-1 (dired-split "/" dir1))
2095 (components-2 (dired-split "/" dir2)))
2096 (while (and components-1
2097 components-2
2098 (equal (car components-1) (car components-2)))
2099 (setq components-1 (cdr components-1)
2100 components-2 (cdr components-2)))
2101 (let ((c1 (car components-1))
2102 (c2 (car components-2)))
2104 (cond ((and c1 c2)
2105 (string-lessp c1 c2))
2106 ((and (null c1) (null c2))
2107 nil) ; they are equal, not lessp
2108 ((null c1) ; c2 is a subdir of c1: c1<c2
2110 ((null c2) ; c1 is a subdir of c2: c1>c2
2111 nil)
2112 (t (error "This can't happen"))))))
2114 ;; There should be a builtin split function - inverse to mapconcat.
2115 (defun dired-split (pat str &optional limit)
2116 "Splitting on regexp PAT, turn string STR into a list of substrings.
2117 Optional third arg LIMIT (>= 1) is a limit to the length of the
2118 resulting list.
2119 Thus, if SEP is a regexp that only matches itself,
2121 (mapconcat 'identity (dired-split SEP STRING) SEP)
2123 is always equal to STRING."
2124 (let* ((start (string-match pat str))
2125 (result (list (substring str 0 start)))
2126 (count 1)
2127 (end (if start (match-end 0))))
2128 (if end ; else nothing left
2129 (while (and (or (not (integerp limit))
2130 (< count limit))
2131 (string-match pat str end))
2132 (setq start (match-beginning 0)
2133 count (1+ count)
2134 result (cons (substring str end start) result)
2135 end (match-end 0)
2136 start end)
2138 (if (and (or (not (integerp limit))
2139 (< count limit))
2140 end) ; else nothing left
2141 (setq result
2142 (cons (substring str end) result)))
2143 (nreverse result)))
2145 ;;; moving by subdirectories
2147 ;;;###autoload
2148 (defun dired-prev-subdir (arg &optional no-error-if-not-found no-skip)
2149 "Go to previous subdirectory, regardless of level.
2150 When called interactively and not on a subdir line, go to this subdir's line."
2151 ;;(interactive "p")
2152 (interactive
2153 (list (if current-prefix-arg
2154 (prefix-numeric-value current-prefix-arg)
2155 ;; if on subdir start already, don't stay there!
2156 (if (dired-get-subdir) 1 0))))
2157 (dired-next-subdir (- arg) no-error-if-not-found no-skip))
2159 (defun dired-subdir-min ()
2160 (save-excursion
2161 (if (not (dired-prev-subdir 0 t t))
2162 (error "Not in a subdir!")
2163 (point))))
2165 ;;;###autoload
2166 (defun dired-goto-subdir (dir)
2167 "Go to end of header line of DIR in this dired buffer.
2168 Return value of point on success, otherwise return nil.
2169 The next char is either \\n, or \\r if DIR is hidden."
2170 (interactive
2171 (prog1 ; let push-mark display its message
2172 (list (expand-file-name
2173 (completing-read "Goto in situ directory: " ; prompt
2174 dired-subdir-alist ; table
2175 nil ; predicate
2176 t ; require-match
2177 (dired-current-directory))))
2178 (push-mark)))
2179 (setq dir (file-name-as-directory dir))
2180 (let ((elt (assoc dir dired-subdir-alist)))
2181 (and elt
2182 (goto-char (dired-get-subdir-min elt))
2183 ;; dired-subdir-hidden-p and dired-add-entry depend on point being
2184 ;; at either \r or \n after this function succeeds.
2185 (progn (skip-chars-forward "^\r\n")
2186 (point)))))
2188 ;;;###autoload
2189 (defun dired-mark-subdir-files ()
2190 "Mark all files except `.' and `..' in current subdirectory.
2191 If the Dired buffer shows multiple directories, this command
2192 marks the files listed in the subdirectory that point is in."
2193 (interactive)
2194 (let ((p-min (dired-subdir-min)))
2195 (dired-mark-files-in-region p-min (dired-subdir-max))))
2197 ;;;###autoload
2198 (defun dired-kill-subdir (&optional remember-marks)
2199 "Remove all lines of current subdirectory.
2200 Lower levels are unaffected."
2201 ;; With optional REMEMBER-MARKS, return a mark-alist.
2202 (interactive)
2203 (let* ((beg (dired-subdir-min))
2204 (end (dired-subdir-max))
2205 (modflag (buffer-modified-p))
2206 (cur-dir (dired-current-directory))
2207 (cons (assoc-string cur-dir dired-switches-alist))
2208 buffer-read-only)
2209 (if (equal cur-dir default-directory)
2210 (error "Attempt to kill top level directory"))
2211 (prog1
2212 (if remember-marks (dired-remember-marks beg end))
2213 (delete-region beg end)
2214 (if (eobp) ; don't leave final blank line
2215 (delete-char -1))
2216 (dired-unsubdir cur-dir)
2217 (when cons
2218 (setq dired-switches-alist (delete cons dired-switches-alist)))
2219 (restore-buffer-modified-p modflag))))
2221 (defun dired-unsubdir (dir)
2222 ;; Remove DIR from the alist
2223 (setq dired-subdir-alist
2224 (delq (assoc dir dired-subdir-alist) dired-subdir-alist)))
2226 ;;;###autoload
2227 (defun dired-tree-up (arg)
2228 "Go up ARG levels in the dired tree."
2229 (interactive "p")
2230 (let ((dir (dired-current-directory)))
2231 (while (>= arg 1)
2232 (setq arg (1- arg)
2233 dir (file-name-directory (directory-file-name dir))))
2234 ;;(setq dir (expand-file-name dir))
2235 (or (dired-goto-subdir dir)
2236 (error "Cannot go up to %s - not in this tree" dir))))
2238 ;;;###autoload
2239 (defun dired-tree-down ()
2240 "Go down in the dired tree."
2241 (interactive)
2242 (let ((dir (dired-current-directory)) ; has slash
2243 pos case-fold-search) ; filenames are case sensitive
2244 (let ((rest (reverse dired-subdir-alist)) elt)
2245 (while rest
2246 (setq elt (car rest)
2247 rest (cdr rest))
2248 (if (dired-in-this-tree (directory-file-name (car elt)) dir)
2249 (setq rest nil
2250 pos (dired-goto-subdir (car elt))))))
2251 (if pos
2252 (goto-char pos)
2253 (error "At the bottom"))))
2255 ;;; hiding
2257 (defun dired-unhide-subdir ()
2258 (let (buffer-read-only)
2259 (subst-char-in-region (dired-subdir-min) (dired-subdir-max) ?\r ?\n)))
2261 (defun dired-hide-check ()
2262 (or selective-display
2263 (error "selective-display must be t for subdir hiding to work!")))
2265 (defun dired-subdir-hidden-p (dir)
2266 (and selective-display
2267 (save-excursion
2268 (dired-goto-subdir dir)
2269 (looking-at "\r"))))
2271 ;;;###autoload
2272 (defun dired-hide-subdir (arg)
2273 "Hide or unhide the current subdirectory and move to next directory.
2274 Optional prefix arg is a repeat factor.
2275 Use \\[dired-hide-all] to (un)hide all directories."
2276 (interactive "p")
2277 (dired-hide-check)
2278 (let ((modflag (buffer-modified-p)))
2279 (while (>= (setq arg (1- arg)) 0)
2280 (let* ((cur-dir (dired-current-directory))
2281 (hidden-p (dired-subdir-hidden-p cur-dir))
2282 (elt (assoc cur-dir dired-subdir-alist))
2283 (end-pos (1- (dired-get-subdir-max elt)))
2284 buffer-read-only)
2285 ;; keep header line visible, hide rest
2286 (goto-char (dired-get-subdir-min elt))
2287 (skip-chars-forward "^\n\r")
2288 (if hidden-p
2289 (subst-char-in-region (point) end-pos ?\r ?\n)
2290 (subst-char-in-region (point) end-pos ?\n ?\r)))
2291 (dired-next-subdir 1 t))
2292 (restore-buffer-modified-p modflag)))
2294 ;;;###autoload
2295 (defun dired-hide-all (&optional ignored)
2296 "Hide all subdirectories, leaving only their header lines.
2297 If there is already something hidden, make everything visible again.
2298 Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."
2299 (interactive "P")
2300 (dired-hide-check)
2301 (let ((modflag (buffer-modified-p))
2302 buffer-read-only)
2303 (if (save-excursion
2304 (goto-char (point-min))
2305 (search-forward "\r" nil t))
2306 ;; unhide - bombs on \r in filenames
2307 (subst-char-in-region (point-min) (point-max) ?\r ?\n)
2308 ;; hide
2309 (let ((pos (point-max)) ; pos of end of last directory
2310 (alist dired-subdir-alist))
2311 (while alist ; while there are dirs before pos
2312 (subst-char-in-region (dired-get-subdir-min (car alist)) ; pos of prev dir
2313 (save-excursion
2314 (goto-char pos) ; current dir
2315 ;; we're somewhere on current dir's line
2316 (forward-line -1)
2317 (point))
2318 ?\n ?\r)
2319 (setq pos (dired-get-subdir-min (car alist))) ; prev dir gets current dir
2320 (setq alist (cdr alist)))))
2321 (restore-buffer-modified-p modflag)))
2323 ;;;###end dired-ins.el
2326 ;; Search only in file names in the Dired buffer.
2328 (defcustom dired-isearch-filenames nil
2329 "Non-nil to Isearch in file names only.
2330 If t, Isearch in Dired always matches only file names.
2331 If `dwim', Isearch matches file names when initial point position is on
2332 a file name. Otherwise, it searches the whole buffer without restrictions."
2333 :type '(choice (const :tag "No restrictions" nil)
2334 (const :tag "When point is on a file name initially, search file names" dwim)
2335 (const :tag "Always search in file names" t))
2336 :group 'dired
2337 :version "23.1")
2339 (defvar dired-isearch-filter-predicate-orig nil)
2341 (defun dired-isearch-filenames-toggle ()
2342 "Toggle file names searching on or off.
2343 When on, Isearch skips matches outside file names using the predicate
2344 `dired-isearch-filter-filenames' that matches only at file names.
2345 When off, it uses the original predicate."
2346 (interactive)
2347 (setq isearch-filter-predicate
2348 (if (eq isearch-filter-predicate 'dired-isearch-filter-filenames)
2349 dired-isearch-filter-predicate-orig
2350 'dired-isearch-filter-filenames))
2351 (setq isearch-success t isearch-adjusted t)
2352 (isearch-update))
2354 ;;;###autoload
2355 (defun dired-isearch-filenames-setup ()
2356 "Set up isearch to search in Dired file names.
2357 Intended to be added to `isearch-mode-hook'."
2358 (when (or (eq dired-isearch-filenames t)
2359 (and (eq dired-isearch-filenames 'dwim)
2360 (get-text-property (point) 'dired-filename)))
2361 (setq isearch-message-prefix-add "filename ")
2362 (define-key isearch-mode-map "\M-sf" 'dired-isearch-filenames-toggle)
2363 (setq dired-isearch-filter-predicate-orig
2364 (default-value 'isearch-filter-predicate))
2365 (setq-default isearch-filter-predicate 'dired-isearch-filter-filenames)
2366 (add-hook 'isearch-mode-end-hook 'dired-isearch-filenames-end nil t)))
2368 (defun dired-isearch-filenames-end ()
2369 "Clean up the Dired file name search after terminating isearch."
2370 (setq isearch-message-prefix-add nil)
2371 (define-key isearch-mode-map "\M-sf" nil)
2372 (setq-default isearch-filter-predicate dired-isearch-filter-predicate-orig)
2373 (remove-hook 'isearch-mode-end-hook 'dired-isearch-filenames-end t))
2375 (defun dired-isearch-filter-filenames (beg end)
2376 "Test whether the current search hit is a visible file name.
2377 Return non-nil if the text from BEG to END is part of a file
2378 name (has the text property `dired-filename') and is visible."
2379 (and (isearch-filter-visible beg end)
2380 (if dired-isearch-filenames
2381 (text-property-not-all (min beg end) (max beg end)
2382 'dired-filename nil)
2383 t)))
2385 ;;;###autoload
2386 (defun dired-isearch-filenames ()
2387 "Search for a string using Isearch only in file names in the Dired buffer."
2388 (interactive)
2389 (let ((dired-isearch-filenames t))
2390 (isearch-forward)))
2392 ;;;###autoload
2393 (defun dired-isearch-filenames-regexp ()
2394 "Search for a regexp using Isearch only in file names in the Dired buffer."
2395 (interactive)
2396 (let ((dired-isearch-filenames t))
2397 (isearch-forward-regexp)))
2400 ;; Functions for searching in tags style among marked files.
2402 ;;;###autoload
2403 (defun dired-do-isearch ()
2404 "Search for a string through all marked files using Isearch."
2405 (interactive)
2406 (multi-isearch-files
2407 (dired-get-marked-files nil nil 'dired-nondirectory-p)))
2409 ;;;###autoload
2410 (defun dired-do-isearch-regexp ()
2411 "Search for a regexp through all marked files using Isearch."
2412 (interactive)
2413 (multi-isearch-files-regexp
2414 (dired-get-marked-files nil nil 'dired-nondirectory-p)))
2416 ;;;###autoload
2417 (defun dired-do-search (regexp)
2418 "Search through all marked files for a match for REGEXP.
2419 Stops when a match is found.
2420 To continue searching for next match, use command \\[tags-loop-continue]."
2421 (interactive "sSearch marked files (regexp): ")
2422 (tags-search regexp '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2424 ;;;###autoload
2425 (defun dired-do-query-replace-regexp (from to &optional delimited)
2426 "Do `query-replace-regexp' of FROM with TO, on all marked files.
2427 Third arg DELIMITED (prefix arg) means replace only word-delimited matches.
2428 If you exit (\\[keyboard-quit], RET or q), you can resume the query replace
2429 with the command \\[tags-loop-continue]."
2430 (interactive
2431 (let ((common
2432 (query-replace-read-args
2433 "Query replace regexp in marked files" t t)))
2434 (list (nth 0 common) (nth 1 common) (nth 2 common))))
2435 (dolist (file (dired-get-marked-files nil nil 'dired-nondirectory-p))
2436 (let ((buffer (get-file-buffer file)))
2437 (if (and buffer (with-current-buffer buffer
2438 buffer-read-only))
2439 (error "File `%s' is visited read-only" file))))
2440 (tags-query-replace from to delimited
2441 '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2443 (defun dired-nondirectory-p (file)
2444 (not (file-directory-p file)))
2446 ;;;###autoload
2447 (defun dired-show-file-type (file &optional deref-symlinks)
2448 "Print the type of FILE, according to the `file' command.
2449 If FILE is a symbolic link and the optional argument DEREF-SYMLINKS is
2450 true then the type of the file linked to by FILE is printed instead."
2451 (interactive (list (dired-get-filename t) current-prefix-arg))
2452 (let (process-file-side-effects)
2453 (with-temp-buffer
2454 (if deref-symlinks
2455 (process-file "file" nil t t "-L" "--" file)
2456 (process-file "file" nil t t "--" file))
2457 (when (bolp)
2458 (backward-delete-char 1))
2459 (message "%s" (buffer-string)))))
2461 (provide 'dired-aux)
2463 ;; Local Variables:
2464 ;; byte-compile-dynamic: t
2465 ;; generated-autoload-file: "dired.el"
2466 ;; End:
2468 ;;; dired-aux.el ends here