1 ;;; dired-x.el --- extra Dired functionality -*- lexical-binding:t -*-
3 ;; Copyright (C) 1993-1994, 1997, 2001-2016 Free Software Foundation,
6 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>
7 ;; Lawrence R. Dodd <dodd@roebling.poly.edu>
8 ;; Maintainer: Romain Francoise <rfrancoise@gnu.org>
9 ;; Keywords: dired extensions files
12 ;; This file is part of GNU Emacs.
14 ;; GNU Emacs is free software: you can redistribute it and/or modify
15 ;; it under the terms of the GNU General Public License as published by
16 ;; the Free Software Foundation, either version 3 of the License, or
17 ;; (at your option) any later version.
19 ;; GNU Emacs is distributed in the hope that it will be useful,
20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 ;; GNU General Public License for more details.
24 ;; You should have received a copy of the GNU General Public License
25 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
29 ;; This is based on Sebastian Kremer's excellent dired-x.el (Dired Extra),
30 ;; version 1.191, adapted for GNU Emacs. See the `dired-x' info pages.
32 ;; USAGE: In your ~/.emacs,
34 ;; (add-hook 'dired-load-hook
37 ;; ;; Set global variables here. For example:
38 ;; ;; (setq dired-guess-shell-gnutar "gtar")
40 ;; (add-hook 'dired-mode-hook
42 ;; ;; Set buffer-local variables here. For example:
43 ;; ;; (dired-omit-mode 1)
46 ;; At load time dired-x.el will install itself and bind some dired keys.
47 ;; Some dired.el and dired-aux.el functions have extra features if
50 ;; User customization: M-x customize-group RET dired-x RET.
52 ;; *Please* see the `dired-x' info pages for more details.
57 ;; This is a no-op if dired-x is being loaded via `dired-load-hook',
58 ;; but maybe not if a dired-x function is being autoloaded.
61 ;;; User-defined variables.
64 "Extended directory editing (dired-x)."
67 (defgroup dired-keys nil
68 "Dired keys customizations."
72 (defcustom dired-bind-vm nil
73 "Non-nil means \"V\" runs `dired-vm', otherwise \"V\" runs `dired-rmail'.
74 RMAIL files in the old Babyl format (used before before Emacs 23.1)
75 contain \"-*- rmail -*-\" at the top, so `dired-find-file'
76 will run `rmail' on these files. New RMAIL files use the standard
77 mbox format, and so cannot be distinguished in this way."
81 (defcustom dired-bind-jump t
82 "Non-nil means bind `dired-jump' to C-x C-j, otherwise do not.
83 Setting this variable directly after dired-x is loaded has no effect -
86 :set
(lambda (sym val
)
89 (define-key ctl-x-map
"\C-j" 'dired-jump
)
90 (define-key ctl-x-4-map
"\C-j" 'dired-jump-other-window
))
91 (if (eq 'dired-jump
(lookup-key ctl-x-map
"\C-j"))
92 (define-key ctl-x-map
"\C-j" nil
))
93 (if (eq 'dired-jump-other-window
(lookup-key ctl-x-4-map
"\C-j"))
94 (define-key ctl-x-4-map
"\C-j" nil
))))
97 (defcustom dired-bind-man t
98 "Non-nil means bind `dired-man' to \"N\" in Dired, otherwise do not.
99 Setting this variable directly after dired-x is loaded has no effect -
102 :set
(lambda (sym val
)
104 (define-key dired-mode-map
"N" 'dired-man
)
105 (if (eq 'dired-man
(lookup-key dired-mode-map
"N"))
106 (define-key dired-mode-map
"N" nil
))))
109 (defcustom dired-bind-info t
110 "Non-nil means bind `dired-info' to \"I\" in Dired, otherwise do not.
111 Setting this variable directly after dired-x is loaded has no effect -
114 :set
(lambda (sym val
)
116 (define-key dired-mode-map
"I" 'dired-info
)
117 (if (eq 'dired-info
(lookup-key dired-mode-map
"I"))
118 (define-key dired-mode-map
"I" nil
))))
121 (defcustom dired-vm-read-only-folders nil
122 "If non-nil, \\[dired-vm] will visit all folders read-only.
123 If neither nil nor t, e.g. the symbol `if-file-read-only', only
124 files not writable by you are visited read-only."
125 :type
'(choice (const :tag
"off" nil
)
127 (other :tag
"non-writable only" if-file-read-only
))
130 (defcustom dired-omit-size-limit
30000
131 "Maximum size for the \"omitting\" feature.
132 If nil, there is no maximum size."
133 :type
'(choice (const :tag
"no maximum" nil
) integer
)
136 ;; For backward compatibility
137 (define-obsolete-variable-alias 'dired-omit-files-p
'dired-omit-mode
"22.1")
138 (define-minor-mode dired-omit-mode
139 "Toggle omission of uninteresting files in Dired (Dired-Omit mode).
140 With a prefix argument ARG, enable Dired-Omit mode if ARG is
141 positive, and disable it otherwise. If called from Lisp, enable
142 the mode if ARG is omitted or nil.
144 Dired-Omit mode is a buffer-local minor mode. When enabled in a
145 Dired buffer, Dired does not list files whose filenames match
146 regexp `dired-omit-files', nor files ending with extensions in
147 `dired-omit-extensions'.
149 To enable omitting in every Dired buffer, you can put this in
152 (add-hook \\='dired-mode-hook (lambda () (dired-omit-mode)))
154 See Info node `(dired-x) Omitting Variables' for more information."
157 ;; This will mention how many lines were omitted:
158 (let ((dired-omit-size-limit nil
)) (dired-omit-expunge))
161 (put 'dired-omit-mode
'safe-local-variable
'booleanp
)
163 (defcustom dired-omit-files
"^\\.?#\\|^\\.$\\|^\\.\\.$"
164 "Filenames matching this regexp will not be displayed.
165 This only has effect when `dired-omit-mode' is t. See interactive function
166 `dired-omit-mode' (\\[dired-omit-mode]) and variable
167 `dired-omit-extensions'. The default is to omit `.', `..', auto-save
168 files and lock files."
172 (defcustom dired-omit-verbose t
173 "When non-nil, show messages when omitting files.
174 When nil, don't show messages."
179 (defcustom dired-find-subdir nil
; t is pretty near to DWIM...
180 "If non-nil, Dired always finds a directory in a buffer of its own.
181 If nil, Dired finds the directory as a subdirectory in some other buffer
182 if it is present as one.
184 If there are several Dired buffers for a directory, the most recently
187 Dired avoids switching to the current buffer, so that if you have
188 a normal and a wildcard buffer for the same directory, \\[dired] will
189 toggle between those two."
193 (defcustom dired-enable-local-variables t
194 "Control use of local-variables lists in Dired.
195 This temporarily overrides the value of `enable-local-variables' when
196 listing a directory. See also `dired-local-variables-file'."
198 :type
'(choice (const :tag
"Query Unsafe" t
)
199 (const :tag
"Safe Only" :safe
)
200 (const :tag
"Do all" :all
)
201 (const :tag
"Ignore" nil
)
202 (other :tag
"Query" other
))
205 (make-obsolete-variable 'dired-enable-local-variables
206 "use a standard `dir-locals-file' instead." "24.1")
208 (defcustom dired-guess-shell-gnutar
210 (dolist (exe '("tar" "gtar"))
211 (if (with-temp-buffer
212 (ignore-errors (call-process exe nil t nil
"--version"))
213 (and (re-search-backward "GNU tar" nil t
) t
))
214 (throw 'found exe
))))
215 "If non-nil, name of GNU tar executable.
216 \(E.g., \"tar\" or \"gtar\"). The `z' switch will be used with it for
217 compressed or gzip'ed tar files. If you don't have GNU tar, set this
218 to nil: a pipe using `zcat' or `gunzip -c' will be used."
219 ;; Changed from system-type test to testing --version output.
220 ;; Maybe test --help for -z instead?
222 :type
'(choice (const :tag
"Not GNU tar" nil
)
223 (string :tag
"Command name"))
226 (defcustom dired-guess-shell-gzip-quiet t
227 "Non-nil says pass -q to gzip overriding verbose GZIP environment."
231 (defcustom dired-guess-shell-znew-switches nil
232 "If non-nil, then string of switches passed to `znew', example: \"-K\"."
233 :type
'(choice (const :tag
"None" nil
)
234 (string :tag
"Switches"))
237 (defcustom dired-clean-up-buffers-too t
238 "Non-nil means offer to kill buffers visiting files and dirs deleted in Dired."
244 (define-key dired-mode-map
"\C-x\M-o" 'dired-omit-mode
)
245 (define-key dired-mode-map
"*O" 'dired-mark-omitted
)
246 (define-key dired-mode-map
"\M-(" 'dired-mark-sexp
)
247 (define-key dired-mode-map
"*(" 'dired-mark-sexp
)
248 (define-key dired-mode-map
"*." 'dired-mark-extension
)
249 (define-key dired-mode-map
"\M-!" 'dired-smart-shell-command
)
250 (define-key dired-mode-map
"\M-G" 'dired-goto-subdir
)
251 (define-key dired-mode-map
"F" 'dired-do-find-marked-files
)
252 (define-key dired-mode-map
"Y" 'dired-do-relsymlink
)
253 (define-key dired-mode-map
"%Y" 'dired-do-relsymlink-regexp
)
254 (define-key dired-mode-map
"V" 'dired-do-run-mail
)
260 (let ((menu (lookup-key dired-mode-map
[menu-bar
])))
261 (easy-menu-add-item menu
'("Operate")
262 ["Find Files" dired-do-find-marked-files
263 :help
"Find current or marked files"]
265 (easy-menu-add-item menu
'("Operate")
266 ["Relative Symlink to..." dired-do-relsymlink
267 :visible
(fboundp 'make-symbolic-link
)
268 :help
"Make relative symbolic links for current or \
271 (easy-menu-add-item menu
'("Mark")
272 ["Flag Extension..." dired-flag-extension
273 :help
"Flag files with a certain extension for deletion"]
275 (easy-menu-add-item menu
'("Mark")
276 ["Mark Extension..." dired-mark-extension
277 :help
"Mark files with a certain extension"]
279 (easy-menu-add-item menu
'("Mark")
280 ["Mark Omitted" dired-mark-omitted
281 :help
"Mark files matching `dired-omit-files' \
282 and `dired-omit-extensions'"]
284 (easy-menu-add-item menu
'("Regexp")
285 ["Relative Symlink..." dired-do-relsymlink-regexp
286 :visible
(fboundp 'make-symbolic-link
)
287 :help
"Make relative symbolic links for files \
290 (easy-menu-add-item menu
'("Immediate")
291 ["Omit Mode" dired-omit-mode
292 :style toggle
:selected dired-omit-mode
293 :help
"Enable or disable omitting \"uninteresting\" \
298 ;; Install into appropriate hooks.
300 (add-hook 'dired-mode-hook
'dired-extra-startup
)
301 (add-hook 'dired-after-readin-hook
'dired-omit-expunge
)
303 (defun dired-extra-startup ()
304 "Automatically put on `dired-mode-hook' to get extra Dired features:
306 \\[dired-do-run-mail]\t-- run mail on folder (see `dired-bind-vm')
307 \\[dired-info]\t-- run info on file
308 \\[dired-man]\t-- run man on file
309 \\[dired-do-find-marked-files]\t-- visit all marked files simultaneously
310 \\[dired-omit-mode]\t-- toggle omitting of files
311 \\[dired-mark-sexp]\t-- mark by Lisp expression
313 To see the options you can set, use M-x customize-group RET dired-x RET.
314 See also the functions:
315 `dired-flag-extension'
322 `dired-do-find-marked-files'"
324 ;; These must be done in each new dired buffer.
325 (dired-hack-local-variables)
326 (dired-omit-startup))
329 ;;; EXTENSION MARKING FUNCTIONS.
331 ;; Mark files with some extension.
332 (defun dired-mark-extension (extension &optional marker-char
)
333 "Mark all files with a certain EXTENSION for use in later commands.
334 A `.' is *not* automatically prepended to the string entered.
335 EXTENSION may also be a list of extensions instead of a single one.
336 Optional MARKER-CHAR is marker to use."
337 (interactive "sMarking extension: \nP")
338 (or (listp extension
)
339 (setq extension
(list extension
)))
340 (dired-mark-files-regexp
341 (concat ".";; don't match names with nothing but an extension
343 (mapconcat 'regexp-quote extension
"\\|")
347 (defun dired-flag-extension (extension)
348 "In Dired, flag all files with a certain EXTENSION for deletion.
349 A `.' is *not* automatically prepended to the string entered."
350 (interactive "sFlagging extension: ")
351 (dired-mark-extension extension dired-del-marker
))
353 ;; Define some unpopular file extensions. Used for cleaning and omitting.
355 (defvar dired-patch-unclean-extensions
357 "List of extensions of dispensable files created by the `patch' program.")
359 (defvar dired-tex-unclean-extensions
360 '(".toc" ".log" ".aux");; these are already in completion-ignored-extensions
361 "List of extensions of dispensable files created by TeX.")
363 (defvar dired-latex-unclean-extensions
364 '(".idx" ".lof" ".lot" ".glo")
365 "List of extensions of dispensable files created by LaTeX.")
367 (defvar dired-bibtex-unclean-extensions
369 "List of extensions of dispensable files created by BibTeX.")
371 (defvar dired-texinfo-unclean-extensions
372 '(".cp" ".cps" ".fn" ".fns" ".ky" ".kys" ".pg" ".pgs"
373 ".tp" ".tps" ".vr" ".vrs")
374 "List of extensions of dispensable files created by texinfo.")
376 (defun dired-clean-patch ()
377 "Flag dispensable files created by patch for deletion.
378 See variable `dired-patch-unclean-extensions'."
380 (dired-flag-extension dired-patch-unclean-extensions
))
382 (defun dired-clean-tex ()
383 "Flag dispensable files created by [La]TeX etc. for deletion.
384 See variables `dired-tex-unclean-extensions',
385 `dired-latex-unclean-extensions', `dired-bibtex-unclean-extensions' and
386 `dired-texinfo-unclean-extensions'."
388 (dired-flag-extension (append dired-texinfo-unclean-extensions
389 dired-latex-unclean-extensions
390 dired-bibtex-unclean-extensions
391 dired-tex-unclean-extensions
)))
393 (defun dired-very-clean-tex ()
394 "Flag dispensable files created by [La]TeX *and* \".dvi\" for deletion.
395 See variables `dired-texinfo-unclean-extensions',
396 `dired-latex-unclean-extensions', `dired-bibtex-unclean-extensions' and
397 `dired-texinfo-unclean-extensions'."
399 (dired-flag-extension (append dired-texinfo-unclean-extensions
400 dired-latex-unclean-extensions
401 dired-bibtex-unclean-extensions
402 dired-tex-unclean-extensions
405 (defvar tar-superior-buffer
)
409 (defun dired-jump (&optional other-window file-name
)
410 "Jump to Dired buffer corresponding to current buffer.
411 If in a file, Dired the current directory and move to file's line.
412 If in Dired already, pop up a level and goto old directory's line.
413 In case the proper Dired file line cannot be found, refresh the dired
414 buffer and try again.
415 When OTHER-WINDOW is non-nil, jump to Dired buffer in other window.
416 Interactively with prefix argument, read FILE-NAME and
417 move to its line in dired."
419 (list nil
(and current-prefix-arg
420 (read-file-name "Jump to Dired file: "))))
421 (if (bound-and-true-p tar-subfile-mode
)
422 (switch-to-buffer tar-superior-buffer
)
423 (let* ((file (or file-name buffer-file-name
))
424 (dir (if file
(file-name-directory file
) default-directory
)))
425 (if (and (eq major-mode
'dired-mode
) (null file-name
))
427 (setq dir
(dired-current-directory))
428 (dired-up-directory other-window
)
429 (unless (dired-goto-file dir
)
430 ;; refresh and try again
431 (dired-insert-subdir (file-name-directory dir
))
432 (dired-goto-file dir
)))
434 (dired-other-window dir
)
437 (or (dired-goto-file file
)
438 ;; refresh and try again
440 (dired-insert-subdir (file-name-directory file
))
441 (dired-goto-file file
))
442 ;; Toggle omitting, if it is on, and try again.
443 (when dired-omit-mode
445 (dired-goto-file file
))))))))
448 (defun dired-jump-other-window (&optional file-name
)
449 "Like \\[dired-jump] (`dired-jump') but in other window."
451 (list (and current-prefix-arg
452 (read-file-name "Jump to Dired file: "))))
453 (dired-jump t file-name
))
457 ;; Enhanced omitting of lines from directory listings.
458 ;; Marked files are never omitted.
460 ;; should probably get rid of this and always use 'no-dir.
461 ;; sk 28-Aug-1991 09:37
462 (defvar dired-omit-localp
'no-dir
463 "The LOCALP argument `dired-omit-expunge' passes to `dired-get-filename'.
464 If it is `no-dir', omitting is much faster, but you can only match
465 against the non-directory part of the file name. Set it to nil if you
466 need to match the entire file name.")
468 ;; \017=^O for Omit - other packages can chose other control characters.
469 (defvar dired-omit-marker-char ?
\017
470 "Temporary marker used by Dired-Omit.
471 Should never be used as marker by the user or other packages.")
473 (defun dired-omit-startup ()
474 (or (assq 'dired-omit-mode minor-mode-alist
)
475 (setq minor-mode-alist
476 (append '((dired-omit-mode
477 (:eval
(if (eq major-mode
'dired-mode
)
481 (defun dired-mark-omitted ()
482 "Mark files matching `dired-omit-files' and `dired-omit-extensions'."
484 (let ((dired-omit-mode nil
)) (revert-buffer)) ;; Show omitted files
485 (dired-mark-unmarked-files (dired-omit-regexp) nil nil dired-omit-localp
))
487 (defcustom dired-omit-extensions
488 (append completion-ignored-extensions
489 dired-latex-unclean-extensions
490 dired-bibtex-unclean-extensions
491 dired-texinfo-unclean-extensions
)
492 "If non-nil, a list of extensions (strings) to omit from Dired listings.
493 Defaults to elements of `completion-ignored-extensions',
494 `dired-latex-unclean-extensions', `dired-bibtex-unclean-extensions', and
495 `dired-texinfo-unclean-extensions'.
497 See interactive function `dired-omit-mode' (\\[dired-omit-mode]) and
498 variables `dired-omit-mode' and `dired-omit-files'."
499 :type
'(repeat string
)
502 (defun dired-omit-expunge (&optional regexp
)
503 "Erases all unmarked files matching REGEXP.
504 Does nothing if global variable `dired-omit-mode' is nil, or if called
505 non-interactively and buffer is bigger than `dired-omit-size-limit'.
506 If REGEXP is nil or not specified, uses `dired-omit-files', and also omits
507 filenames ending in `dired-omit-extensions'.
508 If REGEXP is the empty string, this function is a no-op.
510 This functions works by temporarily binding `dired-marker-char' to
511 `dired-omit-marker-char' and calling `dired-do-kill-lines'."
512 (interactive "sOmit files (regexp): ")
513 (if (and dired-omit-mode
514 (or (called-interactively-p 'interactive
)
515 (not dired-omit-size-limit
)
516 (< (buffer-size) dired-omit-size-limit
)
518 (when dired-omit-verbose
519 (message "Not omitting: directory larger than %d characters."
520 dired-omit-size-limit
))
521 (setq dired-omit-mode nil
)
523 (let ((omit-re (or regexp
(dired-omit-regexp)))
524 (old-modified-p (buffer-modified-p))
526 (or (string= omit-re
"")
527 (let ((dired-marker-char dired-omit-marker-char
))
528 (when dired-omit-verbose
(message "Omitting..."))
529 (if (dired-mark-unmarked-files omit-re nil nil dired-omit-localp
)
531 (setq count
(dired-do-kill-lines
533 (if dired-omit-verbose
"Omitted %d line%s." "")))
534 (force-mode-line-update))
535 (when dired-omit-verbose
(message "(Nothing to omit)")))))
536 ;; Try to preserve modified state of buffer. So `%*' doesn't appear
537 ;; in mode-line of omitted buffers.
538 (set-buffer-modified-p (and old-modified-p
540 (goto-char (point-min))
541 (re-search-forward dired-re-mark nil t
))))
544 (defun dired-omit-regexp ()
545 (concat (if dired-omit-files
(concat "\\(" dired-omit-files
"\\)") "")
546 (if (and dired-omit-files dired-omit-extensions
) "\\|" "")
547 (if dired-omit-extensions
548 (concat ".";; a non-extension part should exist
550 (mapconcat 'regexp-quote dired-omit-extensions
"\\|")
554 ;; Returns t if any work was done, nil otherwise.
555 (defun dired-mark-unmarked-files (regexp msg
&optional unflag-p localp
)
556 "Mark unmarked files matching REGEXP, displaying MSG.
557 REGEXP is matched against the entire file name. When called
558 interactively, prompt for REGEXP.
559 With prefix argument, unflag all those files.
560 Optional fourth argument LOCALP is as in `dired-get-filename'."
563 "Mark unmarked files matching regexp (default all): "
564 nil
'dired-regexp-history
)
565 nil current-prefix-arg nil
))
566 (let ((dired-marker-char (if unflag-p ?\s dired-marker-char
)))
569 ;; not already marked
572 (let ((fn (dired-get-filename localp t
)))
573 (and fn
(string-match-p regexp fn
))))
577 ;;; VIRTUAL DIRED MODE.
579 ;; For browsing `ls -lR' listings in a dired-like fashion.
581 (defalias 'virtual-dired
'dired-virtual
)
582 (defun dired-virtual (dirname &optional switches
)
583 "Put this buffer into Virtual Dired mode.
585 In Virtual Dired mode, all commands that do not actually consult the
586 filesystem will work.
588 This is useful if you want to peruse and move around in an ls -lR
589 output file, for example one you got from an ftp server. With
590 ange-ftp, you can even Dired a directory containing an ls-lR file,
591 visit that file and turn on Virtual Dired mode. But don't try to save
592 this file, as dired-virtual indents the listing and thus changes the
595 If you have save a Dired buffer in a file you can use \\[dired-virtual] to
596 resume it in a later session.
598 Type \\<dired-mode-map>\\[revert-buffer] \
599 in the Virtual Dired buffer and answer `y' to convert
600 the virtual to a real Dired buffer again. You don't have to do this, though:
601 you can relist single subdirs using \\[dired-do-redisplay]."
603 ;; DIRNAME is the top level directory of the buffer. It will become
604 ;; its `default-directory'. If nil, the old value of
605 ;; default-directory is used.
607 ;; Optional SWITCHES are the ls switches to use.
609 ;; Shell wildcards will be used if there already is a `wildcard'
610 ;; line in the buffer (thus it is a saved Dired buffer), but there
611 ;; is no other way to get wildcards. Insert a `wildcard' line by
612 ;; hand if you want them.
615 (list (read-string "Virtual Dired directory: " (dired-virtual-guess-dir))))
616 (goto-char (point-min))
617 (or (looking-at-p " ")
618 ;; if not already indented, do it now:
619 (indent-region (point-min) (point-max) 2))
620 (or dirname
(setq dirname default-directory
))
621 (setq dirname
(expand-file-name (file-name-as-directory dirname
)))
622 (setq default-directory dirname
) ; contains no wildcards
623 (let ((wildcard (save-excursion
624 (goto-char (point-min))
626 (and (looking-at "^ wildcard ")
627 (buffer-substring (match-end 0)
628 (line-end-position))))))
630 (setq dirname
(expand-file-name wildcard default-directory
))))
631 ;; If raw ls listing (not a saved old dired buffer), give it a
632 ;; decent subdir headerline:
633 (goto-char (point-min))
634 (or (looking-at-p dired-subdir-regexp
)
636 (directory-file-name (file-name-directory default-directory
))
638 (dired-mode dirname
(or switches dired-listing-switches
))
639 (setq mode-name
"Virtual Dired"
640 revert-buffer-function
'dired-virtual-revert
)
641 (set (make-local-variable 'dired-subdir-alist
) nil
)
642 (dired-build-subdir-alist)
643 (goto-char (point-min))
644 (dired-initial-position dirname
))
646 (defun dired-virtual-guess-dir ()
647 "Guess and return appropriate working directory of this buffer.
648 The buffer is assumed to be in Dired or ls -lR format. The guess is
649 based upon buffer contents. If nothing could be guessed, returns
652 (let ((regexp "^\\( \\)?\\([^ \n\r]*\\)\\(:\\)[\n\r]")
654 (goto-char (point-min))
655 (cond ((looking-at regexp
)
656 ;; If a saved dired buffer, look to which dir and
657 ;; perhaps wildcard it belongs:
658 (let ((dir (buffer-substring (match-beginning subexpr
)
659 (match-end subexpr
))))
660 (file-name-as-directory dir
)))
661 ;; Else no match for headerline found. It's a raw ls listing.
662 ;; In raw ls listings the directory does not have a headerline
663 ;; try parent of first subdir, if any
664 ((re-search-forward regexp nil t
)
667 (file-name-as-directory
668 (buffer-substring (match-beginning subexpr
)
669 (match-end subexpr
))))))
670 (t ; if all else fails
674 (defun dired-virtual-revert (&optional _arg _noconfirm
)
676 (y-or-n-p "Cannot revert a Virtual Dired buffer - switch to Real Dired mode? "))
677 (error "Cannot revert a Virtual Dired buffer")
678 (setq mode-name
"Dired"
679 revert-buffer-function
'dired-revert
)
682 ;; A zero-arg version of dired-virtual.
683 (defun dired-virtual-mode ()
684 "Put current buffer into Virtual Dired mode (see `dired-virtual').
685 Useful on `magic-mode-alist' with the regexp
687 \"^ \\\\(/[^ /]+\\\\)+/?:$\"
689 to put saved Dired buffers automatically into Virtual Dired mode.
691 Also useful for `auto-mode-alist' like this:
693 (add-to-list \\='auto-mode-alist
694 \\='(\"[^/]\\\\.dired\\\\\\='\" . dired-virtual-mode))"
696 (dired-virtual (dired-virtual-guess-dir)))
701 ;; An Emacs buffer can have but one working directory, stored in the
702 ;; buffer-local variable `default-directory'. A Dired buffer may have
703 ;; several subdirectories inserted, but still has but one working directory:
704 ;; that of the top level Dired directory in that buffer. For some commands
705 ;; it is appropriate that they use the current Dired directory instead of
706 ;; `default-directory', e.g., `find-file' and `compile'. This is a general
707 ;; mechanism is provided for special handling of the working directory in
708 ;; special major modes.
710 (define-obsolete-variable-alias 'default-directory-alist
711 'dired-default-directory-alist
"24.1")
713 ;; It's easier to add to this alist than redefine function
714 ;; default-directory while keeping the old information.
715 (defconst dired-default-directory-alist
716 '((dired-mode .
(if (fboundp 'dired-current-directory
)
717 (dired-current-directory)
719 "Alist of major modes and their opinion on `default-directory'.
720 Each element has the form (MAJOR . EXPRESSION).
721 The function `dired-default-directory' evaluates EXPRESSION to
722 determine a default directory.")
724 (put 'dired-default-directory-alist
'risky-local-variable t
) ; gets eval'd
725 (make-obsolete-variable 'dired-default-directory-alist
726 "this feature is due to be removed." "24.1")
728 (defun dired-default-directory ()
729 "Return the `dired-default-directory-alist' entry for the current major-mode.
730 If none, return `default-directory'."
731 ;; It looks like this was intended to be something of a "general"
732 ;; feature, but it only ever seems to have been used in
733 ;; dired-smart-shell-command, and doesn't seem worth keeping around.
734 (declare (obsolete nil
"24.1"))
735 (or (eval (cdr (assq major-mode dired-default-directory-alist
)))
738 (defun dired-smart-shell-command (command &optional output-buffer error-buffer
)
739 "Like function `shell-command', but in the current Virtual Dired directory."
742 (read-shell-command "Shell command: " nil nil
744 (buffer-file-name (file-relative-name buffer-file-name
))
745 ((eq major-mode
'dired-mode
) (dired-get-filename t t
))))
747 shell-command-default-error-buffer
))
748 (let ((default-directory (or (and (eq major-mode
'dired-mode
)
749 (dired-current-directory))
751 (shell-command command output-buffer error-buffer
)))
754 ;;; LOCAL VARIABLES FOR DIRED BUFFERS.
756 ;; Brief Description (This feature is obsolete as of Emacs 24.1)
758 ;; * `dired-extra-startup' is part of the `dired-mode-hook'.
760 ;; * `dired-extra-startup' calls `dired-hack-local-variables'
762 ;; * `dired-hack-local-variables' checks the value of
763 ;; `dired-local-variables-file'
765 ;; * Check if `dired-local-variables-file' is a non-nil string and is a
766 ;; filename found in the directory of the Dired Buffer being created.
768 ;; * If `dired-local-variables-file' satisfies the above, then temporarily
769 ;; include it in the Dired Buffer at the bottom.
771 ;; * Set `enable-local-variables' temporarily to the user variable
772 ;; `dired-enable-local-variables' and run `hack-local-variables' on the
775 (defcustom dired-local-variables-file
(convert-standard-filename ".dired")
776 "Filename, as string, containing local Dired buffer variables to be hacked.
777 If this file found in current directory, then it will be inserted into dired
778 buffer and `hack-local-variables' will be run. See Info node
779 `(emacs)File Variables' for more information on local variables.
780 See also `dired-enable-local-variables'."
784 (make-obsolete-variable 'dired-local-variables-file
'dir-locals-file
"24.1")
786 (defun dired-hack-local-variables ()
787 "Evaluate local variables in `dired-local-variables-file' for Dired buffer."
788 (declare (obsolete hack-dir-local-variables-non-file-buffer
"24.1"))
789 (and (stringp dired-local-variables-file
)
790 (file-exists-p dired-local-variables-file
)
791 (let ((opoint (point-max))
792 (inhibit-read-only t
)
793 ;; In case user has `enable-local-variables' set to nil we
794 ;; override it locally with dired's variable.
795 (enable-local-variables dired-enable-local-variables
))
800 (insert-file-contents dired-local-variables-file
))
803 (let ((buffer-file-name dired-local-variables-file
))
804 (hack-local-variables))
805 ;; Delete this stuff: `eobp' is used to find last subdir by dired.el.
806 (delete-region opoint
(point-max)))
807 ;; Make sure that the mode line shows the proper information.
808 (dired-sort-set-mode-line))))
810 ;; Does not seem worth a dedicated command.
811 ;; See the more general features in files-x.el.
812 (defun dired-omit-here-always ()
813 "Create `dir-locals-file' setting `dired-omit-mode' to t in `dired-mode'.
814 If in a Dired buffer, reverts it."
815 (declare (obsolete add-dir-local-variable
"24.1"))
817 (if (file-exists-p dired-local-variables-file
)
818 (error "Old-style dired-local-variables-file `./%s' found;
819 replace it with a dir-locals-file `./%s'"
820 dired-local-variables-file
822 (if (file-exists-p dir-locals-file
)
823 (message "File `./%s' already exists." dir-locals-file
)
826 \((dired-mode . ((subdirs . nil)
827 (dired-omit-mode . t))))\n")
828 (write-file dir-locals-file
))
829 ;; Run extra-hooks and revert directory.
830 (when (derived-mode-p 'dired-mode
)
831 (hack-dir-local-variables-non-file-buffer)
832 (dired-extra-startup)
836 ;;; GUESS SHELL COMMAND.
838 ;; Brief Description:
840 ;; * `dired-do-shell-command' is bound to `!' by dired.el.
842 ;; * `dired-guess-shell-command' provides smarter defaults for
843 ;;; dired-aux.el's `dired-read-shell-command'.
845 ;; * `dired-guess-shell-command' calls `dired-guess-default' with list of
848 ;; * Parse `dired-guess-shell-alist-user' and
849 ;;; `dired-guess-shell-alist-default' (in that order) for the first REGEXP
850 ;;; that matches the first file in the file list.
852 ;; * If the REGEXP matches all the entries of the file list then evaluate
853 ;;; COMMAND, which is either a string or a Lisp expression returning a
854 ;;; string. COMMAND may be a list of commands.
856 ;; * Return this command to `dired-guess-shell-command' which prompts user
857 ;;; with it. The list of commands is put into the list of default values.
858 ;;; If a command is used successfully then it is stored permanently in
859 ;;; `dired-shell-command-history'.
861 ;; Guess what shell command to apply to a file.
862 (defvar dired-shell-command-history nil
863 "History list for commands that read dired-shell commands.")
865 ;; Default list of shell commands.
867 ;; NOTE: Use `gunzip -c' instead of `zcat' on `.gz' files. Some do not
868 ;; install GNU zip's version of zcat.
870 (autoload 'Man-support-local-filenames
"man")
872 (defvar dired-guess-shell-alist-default
875 '(if dired-guess-shell-gnutar
876 (concat dired-guess-shell-gnutar
" xvf")
878 ;; Extract files into a separate subdirectory
879 '(if dired-guess-shell-gnutar
880 (concat "mkdir " (file-name-sans-extension file
)
881 "; " dired-guess-shell-gnutar
" -C "
882 (file-name-sans-extension file
) " -xvf")
883 (concat "mkdir " (file-name-sans-extension file
)
884 "; tar -C " (file-name-sans-extension file
) " -xvf"))
885 ;; List archive contents.
886 '(if dired-guess-shell-gnutar
887 (concat dired-guess-shell-gnutar
" tvf")
890 ;; REGEXPS for compressed archives must come before the .Z rule to
892 (list "\\.tar\\.Z\\'"
894 '(if dired-guess-shell-gnutar
895 (concat dired-guess-shell-gnutar
" zxvf")
896 (concat "zcat * | tar xvf -"))
897 ;; Optional conversion to gzip format.
898 '(concat "znew" (if dired-guess-shell-gzip-quiet
" -q")
899 " " dired-guess-shell-znew-switches
))
902 (list "\\.t\\(ar\\.\\)?gz\\'"
903 '(if dired-guess-shell-gnutar
904 (concat dired-guess-shell-gnutar
" zxvf")
905 (concat "gunzip -qc * | tar xvf -"))
906 ;; Extract files into a separate subdirectory
907 '(if dired-guess-shell-gnutar
908 (concat "mkdir " (file-name-sans-extension file
)
909 "; " dired-guess-shell-gnutar
" -C "
910 (file-name-sans-extension file
) " -zxvf")
911 (concat "mkdir " (file-name-sans-extension file
)
912 "; gunzip -qc * | tar -C "
913 (file-name-sans-extension file
) " -xvf -"))
914 ;; Optional decompression.
915 '(concat "gunzip" (if dired-guess-shell-gzip-quiet
" -q" ""))
916 ;; List archive contents.
917 '(if dired-guess-shell-gnutar
918 (concat dired-guess-shell-gnutar
" ztvf")
919 (concat "gunzip -qc * | tar tvf -")))
922 (list "\\.t\\(ar\\.bz2\\|bz\\)\\'"
923 "bunzip2 -c * | tar xvf -"
924 ;; Extract files into a separate subdirectory
925 '(concat "mkdir " (file-name-sans-extension file
)
926 "; bunzip2 -c * | tar -C "
927 (file-name-sans-extension file
) " -xvf -")
928 ;; Optional decompression.
932 (list "\\.t\\(ar\\.\\)?xz\\'"
933 "unxz -c * | tar xvf -"
934 ;; Extract files into a separate subdirectory
935 '(concat "mkdir " (file-name-sans-extension file
)
936 "; unxz -c * | tar -C "
937 (file-name-sans-extension file
) " -xvf -")
938 ;; Optional decompression.
941 '("\\.shar\\.Z\\'" "zcat * | unshar")
942 '("\\.shar\\.g?z\\'" "gunzip -qc * | unshar")
944 '("\\.e?ps\\'" "ghostview" "xloadimage" "lpr")
945 (list "\\.e?ps\\.g?z\\'" "gunzip -qc * | ghostview -"
946 ;; Optional decompression.
947 '(concat "gunzip" (if dired-guess-shell-gzip-quiet
" -q")))
948 (list "\\.e?ps\\.Z\\'" "zcat * | ghostview -"
949 ;; Optional conversion to gzip format.
950 '(concat "znew" (if dired-guess-shell-gzip-quiet
" -q")
951 " " dired-guess-shell-znew-switches
))
953 '("\\.patch\\'" "cat * | patch")
954 (list "\\.patch\\.g?z\\'" "gunzip -qc * | patch"
955 ;; Optional decompression.
956 '(concat "gunzip" (if dired-guess-shell-gzip-quiet
" -q")))
957 (list "\\.patch\\.Z\\'" "zcat * | patch"
958 ;; Optional conversion to gzip format.
959 '(concat "znew" (if dired-guess-shell-gzip-quiet
" -q")
960 " " dired-guess-shell-znew-switches
))
962 ;; The following four extensions are useful with dired-man ("N" key)
963 ;; FIXME "man ./" does not work with dired-do-shell-command,
964 ;; because there seems to be no way for us to modify the filename,
965 ;; only the command. Hmph. `dired-man' works though.
966 (list "\\.\\(?:[0-9]\\|man\\)\\'"
967 '(let ((loc (Man-support-local-filenames)))
968 (cond ((eq loc
'man-db
) "man -l")
969 ((eq loc
'man
) "man ./")
971 "cat * | tbl | nroff -man -h | col -b"))))
972 (list "\\.\\(?:[0-9]\\|man\\)\\.g?z\\'"
973 '(let ((loc (Man-support-local-filenames)))
974 (cond ((eq loc
'man-db
)
978 (t "gunzip -qc * | tbl | nroff -man -h | col -b")))
979 ;; Optional decompression.
980 '(concat "gunzip" (if dired-guess-shell-gzip-quiet
" -q")))
981 (list "\\.[0-9]\\.Z\\'"
982 '(let ((loc (Man-support-local-filenames)))
983 (cond ((eq loc
'man-db
) "man -l")
984 ((eq loc
'man
) "man ./")
985 (t "zcat * | tbl | nroff -man -h | col -b")))
986 ;; Optional conversion to gzip format.
987 '(concat "znew" (if dired-guess-shell-gzip-quiet
" -q")
988 " " dired-guess-shell-znew-switches
))
989 '("\\.pod\\'" "perldoc" "pod2man * | nroff -man")
991 '("\\.dvi\\'" "xdvi" "dvips") ; preview and printing
992 '("\\.au\\'" "play") ; play Sun audiofiles
993 '("\\.mpe?g\\'\\|\\.avi\\'" "xine -p")
994 '("\\.ogg\\'" "ogg123")
995 '("\\.mp3\\'" "mpg123")
996 '("\\.wav\\'" "play")
997 '("\\.uu\\'" "uudecode") ; for uudecoded files
998 '("\\.hqx\\'" "mcvert")
999 '("\\.sh\\'" "sh") ; execute shell scripts
1000 '("\\.xbm\\'" "bitmap") ; view X11 bitmaps
1001 '("\\.gp\\'" "gnuplot")
1002 '("\\.p[bgpn]m\\'" "xloadimage")
1003 '("\\.gif\\'" "xloadimage") ; view gif pictures
1004 '("\\.tif\\'" "xloadimage")
1005 '("\\.png\\'" "display") ; xloadimage 4.1 doesn't grok PNG
1006 '("\\.jpe?g\\'" "xloadimage")
1007 '("\\.fig\\'" "xfig") ; edit fig pictures
1008 '("\\.out\\'" "xgraph") ; for plotting purposes.
1009 '("\\.tex\\'" "latex" "tex")
1010 '("\\.texi\\(nfo\\)?\\'" "makeinfo" "texi2dvi")
1011 '("\\.pdf\\'" "xpdf")
1012 '("\\.doc\\'" "antiword" "strings")
1013 '("\\.rpm\\'" "rpm -qilp" "rpm -ivh")
1014 '("\\.dia\\'" "dia")
1015 '("\\.mgp\\'" "mgp")
1017 ;; Some other popular archivers.
1018 (list "\\.zip\\'" "unzip" "unzip -l"
1019 ;; Extract files into a separate subdirectory
1020 '(concat "unzip" (if dired-guess-shell-gzip-quiet
" -q")
1021 " -d " (file-name-sans-extension file
)))
1022 '("\\.zoo\\'" "zoo x//")
1023 '("\\.lzh\\'" "lharc x")
1024 '("\\.arc\\'" "arc x")
1025 '("\\.shar\\'" "unshar")
1026 '("\\.rar\\'" "unrar x")
1027 '("\\.7z\\'" "7z x")
1030 (list "\\.g?z\\'" '(concat "gunzip" (if dired-guess-shell-gzip-quiet
" -q")))
1031 (list "\\.dz\\'" "dictunzip")
1032 (list "\\.bz2\\'" "bunzip2")
1033 (list "\\.xz\\'" "unxz")
1034 (list "\\.Z\\'" "uncompress"
1035 ;; Optional conversion to gzip format.
1036 '(concat "znew" (if dired-guess-shell-gzip-quiet
" -q")
1037 " " dired-guess-shell-znew-switches
))
1039 '("\\.sign?\\'" "gpg --verify"))
1041 "Default alist used for shell command guessing.
1042 See `dired-guess-shell-alist-user'.")
1044 (defcustom dired-guess-shell-alist-user nil
1045 "User-defined alist of rules for suggested commands.
1046 These rules take precedence over the predefined rules in the variable
1047 `dired-guess-shell-alist-default' (to which they are prepended).
1049 Each element of this list looks like
1053 where each COMMAND can either be a string or a Lisp expression that evaluates
1054 to a string. This expression can access the file name as the variable `file'.
1055 If several COMMANDs are given, the first one will be the default
1056 and the rest will be added temporarily to the history and can be retrieved
1057 with \\[previous-history-element] (M-p) .
1059 The variable `dired-guess-shell-case-fold-search' controls whether
1060 REGEXP is matched case-sensitively.
1062 You can set this variable in your ~/.emacs. For example, to add rules for
1063 `.foo' and `.bar' files, write
1065 (setq dired-guess-shell-alist-user
1066 '((\"\\\\.foo\\\\'\" \"FOO-COMMAND\")
1070 \"BAR-COMMAND-2\"))))"
1072 :type
'(alist :key-type regexp
:value-type
(repeat sexp
)))
1074 (defcustom dired-guess-shell-case-fold-search t
1075 "If non-nil, `dired-guess-shell-alist-default' and
1076 `dired-guess-shell-alist-user' are matched case-insensitively."
1080 (defun dired-guess-default (files)
1081 "Return a shell command, or a list of commands, appropriate for FILES.
1082 See `dired-guess-shell-alist-user'."
1084 (let* ((case-fold-search dired-guess-shell-case-fold-search
)
1085 ;; Prepend the user's alist to the default alist.
1086 (alist (append dired-guess-shell-alist-user
1087 dired-guess-shell-alist-default
))
1092 ;; Find the first match in the alist for first file in FILES.
1094 (setq elt
(car alist
)
1097 (if (string-match-p regexp file
)
1098 (setq cmds
(cdr elt
)
1101 ;; If more than one file, see if all of FILES match regular expression.
1103 (string-match-p regexp
(car flist
)))
1104 (setq flist
(cdr flist
)))
1106 ;; If flist is still non-nil, then do not guess since this means that not
1107 ;; all the files in FILES were matched by the regexp.
1108 (setq cmds
(and (not flist
) cmds
))
1110 ;; Return commands or nil if flist is still non-nil.
1111 ;; Evaluate the commands in order that any logical testing will be done.
1113 (delete-dups (mapcar (lambda (cmd) (eval cmd
`((file .
,file
)))) cmds
))
1114 (eval (car cmds
) `((file .
,file
)))))) ; single command
1116 (defun dired-guess-shell-command (prompt files
)
1117 "Ask user with PROMPT for a shell command, guessing a default from FILES."
1118 (let ((default (dired-guess-default files
))
1122 (read-shell-command prompt nil
'dired-shell-command-history
)
1123 (setq prompt
(replace-regexp-in-string ": $" " " prompt
))
1125 ;; More than one guess
1126 (setq default-list default
1127 default
(car default
)
1130 (format "{%d guesses} " (length default-list
))))
1132 (setq default-list
(list default
)))
1133 ;; Put the first guess in the prompt but not in the initial value.
1134 (setq prompt
(concat prompt
(format "[%s]: " default
)))
1135 ;; All guesses can be retrieved with M-n
1136 (setq val
(read-shell-command prompt nil
1137 'dired-shell-command-history
1139 ;; If we got a return, then return default.
1140 (if (equal val
"") default val
))))
1143 ;;; RELATIVE SYMBOLIC LINKS.
1145 (declare-function make-symbolic-link
"fileio.c")
1147 (defvar dired-keep-marker-relsymlink ?S
1148 "See variable `dired-keep-marker-move'.")
1150 (defun dired-make-relative-symlink (file1 file2
&optional ok-if-already-exists
)
1151 "Make a symbolic link (pointing to FILE1) in FILE2.
1152 The link is relative (if possible), for example
1154 \"/vol/tex/bin/foo\" \"/vol/local/bin/foo\"
1158 \"../../tex/bin/foo\" \"/vol/local/bin/foo\""
1159 (interactive "FRelSymLink: \nFRelSymLink %s: \np")
1160 (let (name1 name2 len1 len2
(index 0) sub
)
1161 (setq file1
(expand-file-name file1
)
1162 file2
(expand-file-name file2
)
1164 len2
(length file2
))
1165 ;; Find common initial file name components:
1167 (while (and (setq next
(string-match "/" file1 index
))
1168 (< (setq next
(1+ next
)) (min len1 len2
))
1169 ;; For the comparison, both substrings must end in
1170 ;; `/', so NEXT is *one plus* the result of the
1172 ;; E.g., consider the case of linking "/tmp/a/abc"
1173 ;; to "/tmp/abc" erroneously giving "/tmp/a" instead
1174 ;; of "/tmp/" as common initial component
1175 (string-equal (substring file1
0 next
)
1176 (substring file2
0 next
)))
1179 sub
(substring file1
0 index
)
1180 name1
(substring file1 index
)))
1181 (if (string-equal sub
"/")
1182 ;; No common initial file name found
1184 ;; Else they have a common parent directory
1185 (let ((tem (substring file2 index
))
1188 ;; Count number of slashes we must compensate for ...
1189 (while (setq start
(string-match "/" tem start
))
1190 (setq count
(1+ count
)
1192 ;; ... and prepend a "../" for each slash found:
1194 (setq name1
(concat "../" name1
)))))
1196 (directory-file-name name1
) ; must not link to foo/
1198 name2 ok-if-already-exists
)))
1200 (autoload 'dired-do-create-files
"dired-aux")
1203 (defun dired-do-relsymlink (&optional arg
)
1204 "Relative symlink all marked (or next ARG) files into a directory.
1205 Otherwise make a relative symbolic link to the current file.
1206 This creates relative symbolic links like
1210 not absolute ones like
1212 foo -> /ugly/file/name/that/may/change/any/day/bar/foo
1214 For absolute symlinks, use \\[dired-do-symlink]."
1216 (dired-do-create-files 'relsymlink
#'dired-make-relative-symlink
1217 "RelSymLink" arg dired-keep-marker-relsymlink
))
1219 (autoload 'dired-mark-read-regexp
"dired-aux")
1220 (autoload 'dired-do-create-files-regexp
"dired-aux")
1222 (defun dired-do-relsymlink-regexp (regexp newname
&optional arg whole-name
)
1223 "RelSymlink all marked files containing REGEXP to NEWNAME.
1224 See functions `dired-do-rename-regexp' and `dired-do-relsymlink'
1226 (interactive (dired-mark-read-regexp "RelSymLink"))
1227 (dired-do-create-files-regexp
1228 #'dired-make-relative-symlink
1229 "RelSymLink" arg regexp newname whole-name dired-keep-marker-relsymlink
))
1232 ;;; VISIT ALL MARKED FILES SIMULTANEOUSLY.
1234 ;; Brief Description:
1236 ;; `dired-do-find-marked-files' is bound to `F' by dired-x.el.
1238 ;; * Use `dired-get-marked-files' to collect the marked files in the current
1239 ;;; Dired Buffer into a list of filenames `FILE-LIST'.
1241 ;; * Pass FILE-LIST to `dired-simultaneous-find-file' all with
1242 ;;; `dired-do-find-marked-files''s prefix argument NOSELECT.
1244 ;; * `dired-simultaneous-find-file' runs through FILE-LIST decrementing the
1247 ;; * If NOSELECT is non-nil then just run `find-file-noselect' on each
1248 ;;; element of FILE-LIST.
1250 ;; * If NOSELECT is nil then calculate the `size' of the window for each file
1251 ;;; by dividing the `window-height' by length of FILE-LIST. Thus, `size' is
1252 ;;; cognizant of the window-configuration.
1254 ;; * If `size' is too small abort, otherwise run `find-file' on each element
1255 ;;; of FILE-LIST giving each a window of height `size'.
1257 (defun dired-do-find-marked-files (&optional noselect
)
1258 "Find all marked files displaying all of them simultaneously.
1259 With optional NOSELECT just find files but do not select them.
1261 The current window is split across all files marked, as evenly as possible.
1262 Remaining lines go to bottom-most window. The number of files that can be
1263 displayed this way is restricted by the height of the current window and
1264 `window-min-height'.
1266 To keep Dired buffer displayed, type \\[split-window-below] first.
1267 To display just marked files, type \\[delete-other-windows] first."
1269 (dired-simultaneous-find-file (dired-get-marked-files) noselect
))
1271 (defun dired-simultaneous-find-file (file-list noselect
)
1272 "Visit all files in FILE-LIST and display them simultaneously.
1273 The current window is split across all files in FILE-LIST, as evenly as
1274 possible. Remaining lines go to the bottom-most window. The number of
1275 files that can be displayed this way is restricted by the height of the
1276 current window and the variable `window-min-height'. With non-nil
1277 NOSELECT the files are merely found but not selected."
1278 ;; We don't make this function interactive because it is usually too clumsy
1279 ;; to specify FILE-LIST interactively unless via dired.
1282 ;; Do not select the buffer.
1283 (find-file-noselect (car file-list
))
1284 ;; We will have to select the buffer. Calculate and check window size.
1285 (setq size
(/ (window-height) (length file-list
)))
1286 (or (<= window-min-height size
)
1287 (error "Too many files to visit simultaneously. Try C-u prefix"))
1288 (find-file (car file-list
)))
1290 (dolist (file (cdr file-list
))
1292 ;; Do not select the buffer.
1293 (find-file-noselect file
)
1294 ;; Vertically split off a window of desired size. Upper window will
1295 ;; have SIZE lines. Select lower (larger) window. We split it again.
1296 (select-window (split-window nil size
))
1297 (find-file file
)))))
1300 ;;; MISCELLANEOUS COMMANDS.
1302 ;; Run man on files.
1304 (declare-function Man-getpage-in-background
"man" (topic))
1306 (defvar manual-program
) ; from man.el
1309 "Run `man' on this file."
1310 ;; Used also to say: "Display old buffer if buffer name matches filename."
1311 ;; but I have no idea what that means.
1314 (let* ((file (dired-get-filename))
1315 (manual-program (replace-regexp-in-string "\\*" "%s"
1316 (dired-guess-shell-command
1317 "Man command: " (list file
)))))
1318 (Man-getpage-in-background file
)))
1320 ;; Run Info on files.
1322 (defun dired-info ()
1323 "Run `info' on this file."
1325 (info (dired-get-filename)))
1327 ;; Run mail on mail folders.
1329 (declare-function vm-visit-folder
"ext:vm" (folder &optional read-only
))
1330 (defvar vm-folder-directory
)
1332 (defun dired-vm (&optional read-only
)
1333 "Run VM on this file.
1334 With optional prefix argument, visits the folder read-only.
1335 Otherwise obeys the value of `dired-vm-read-only-folders'."
1337 (let ((dir (dired-current-directory))
1338 (fil (dired-get-filename)))
1339 (vm-visit-folder fil
(or read-only
1340 (eq t dired-vm-read-only-folders
)
1341 (and dired-vm-read-only-folders
1342 (not (file-writable-p fil
)))))
1343 ;; So that pressing `v' inside VM does prompt within current directory:
1344 (set (make-local-variable 'vm-folder-directory
) dir
)))
1346 (defun dired-rmail ()
1347 "Run RMAIL on this file."
1349 (rmail (dired-get-filename)))
1351 (defun dired-do-run-mail ()
1352 "Visit the current file as a mailbox, using VM or RMAIL.
1353 Prompt for confirmation first; if the user says yes, call
1354 `dired-vm' if `dired-bind-vm' is non-nil, `dired-rmail'
1357 (let ((file (dired-get-filename t
)))
1359 (if (y-or-n-p (format-message
1360 "Visit `%s' as a mail folder with VM?" file
))
1362 ;; Read mail folder using rmail.
1363 (if (y-or-n-p (format-message
1364 "Visit `%s' as a mailbox with RMAIL?" file
))
1368 ;;; MISCELLANEOUS INTERNAL FUNCTIONS.
1370 ;; This should be a builtin
1371 (defun dired-buffer-more-recently-used-p (buffer1 buffer2
)
1372 "Return t if BUFFER1 is more recently used than BUFFER2.
1373 Considers buffers closer to the car of `buffer-list' to be more recent."
1374 (and (not (equal buffer1 buffer2
))
1375 (memq buffer1
(buffer-list))
1376 (not (memq buffer1
(memq buffer2
(buffer-list))))))
1378 ;; Same thing as `dired-buffers-for-dir' of dired.el? - lrd 11/23/93
1379 ;; (defun dired-buffers-for-dir-exact (dir)
1380 ;; ;; Return a list of buffers that dired DIR (a directory or wildcard)
1381 ;; ;; at top level, or as subdirectory.
1382 ;; ;; Top level matches must match the wildcard part too, if any.
1383 ;; ;; The list is in reverse order of buffer creation, most recent last.
1384 ;; ;; As a side effect, killed dired buffers for DIR are removed from
1385 ;; ;; dired-buffers.
1386 ;; (let ((alist dired-buffers) result elt)
1388 ;; (setq elt (car alist)
1389 ;; alist (cdr alist))
1390 ;; (let ((buf (cdr elt)))
1391 ;; (if (buffer-name buf)
1392 ;; ;; Top level must match exactly against dired-directory in
1393 ;; ;; case one of them is a wildcard.
1394 ;; (if (or (equal dir (with-current-buffer buf dired-directory))
1395 ;; (assoc dir (with-current-buffer buf dired-subdir-alist)))
1396 ;; (setq result (cons buf result)))
1397 ;; ;; else buffer is killed - clean up:
1398 ;; (setq dired-buffers (delq elt dired-buffers)))))
1402 ;; Needed if ls -lh is supported and also for GNU ls -ls.
1403 (defun dired-x--string-to-number (str)
1404 "Like `string-to-number' but recognize a trailing unit prefix.
1405 For example, 2K is expanded to 2048.0. The caller should make
1406 sure that a trailing letter in STR is one of BKkMGTPEZY."
1407 (let* ((val (string-to-number str
))
1408 (u (unless (zerop val
)
1409 (aref str
(1- (length str
))))))
1410 (when (and u
(> u ?
9))
1413 (let ((units '(?B ?K ?M ?G ?T ?P ?E ?Z ?Y
)))
1414 (while (and units
(/= (pop units
) u
))
1415 (setq val
(* 1024.0 val
)))))
1418 ;; Does anyone use this? - lrd 6/29/93.
1419 ;; Apparently people do use it. - lrd 12/22/97.
1421 (defun dired-mark-sexp (predicate &optional unflag-p
)
1422 "Mark files for which PREDICATE returns non-nil.
1423 With a prefix arg, unmark or unflag those files instead.
1425 PREDICATE is a lisp expression that can refer to the following symbols:
1427 inode [integer] the inode of the file (only for ls -i output)
1428 s [integer] the size of the file for ls -s output
1429 (usually in blocks or, with -k, in KByte)
1430 mode [string] file permission bits, e.g. \"-rw-r--r--\"
1431 nlink [integer] number of links to file
1433 gid [string] group (If the gid is not displayed by ls,
1434 this will still be set (to the same as uid))
1435 size [integer] file size in bytes
1436 time [string] the time that ls displays, e.g. \"Feb 12 14:17\"
1437 name [string] the name of the file
1438 sym [string] if file is a symbolic link, the linked-to name, else \"\"
1444 to mark all zero length files.
1446 There's an ambiguity when a single integer not followed by a unit
1447 prefix precedes the file mode: It is then parsed as inode number
1448 and not as block size (this always works for GNU coreutils ls).
1450 Another limitation is that the uid field is needed for the
1451 function to work correctly. In particular, the field is not
1452 present for some values of `ls-lisp-emulation'.
1454 This function operates only on the buffer content and does not
1455 refer at all to the underlying file system. Contrast this with
1456 `find-dired', which might be preferable for the task at hand."
1457 ;; Using sym="" instead of nil avoids the trap of
1458 ;; (string-match "foo" sym) into which a user would soon fall.
1459 ;; Give `equal' instead of `=' in the example, as this works on
1460 ;; integers and strings.
1461 (interactive "xMark if (lisp expr): \nP")
1462 (message "%s" predicate
)
1463 (let ((dired-marker-char (if unflag-p ?
\040 dired-marker-char
))
1464 inode s mode nlink uid gid size time name sym
)
1469 ;; inode s mode nlink uid gid size time name sym
1471 ;; according to current file line. Returns t for success, nil if
1472 ;; there is no file line. Upon success, all variables are set, either
1473 ;; to nil or the appropriate value, so they need not be initialized.
1474 ;; Moves point within the current line.
1475 (dired-move-to-filename)
1476 (let ((mode-len 10) ; length of mode string
1477 ;; like in dired.el, but with subexpressions \1=inode, \2=s:
1478 ;; GNU ls -hs suffixes the block count with a unit and
1479 ;; prints it as a float, FreeBSD does neither.
1480 (dired-re-inode-size "\\=\\s *\\([0-9]+\\s +\\)?\
1481 \\(?:\\([0-9]+\\(?:\\.[0-9]*\\)?[BkKMGTPEZY]?\\)? ?\\)"))
1484 (search-forward-regexp dired-re-inode-size nil t
)
1485 ;; XXX Might be a size not followed by a unit prefix.
1486 ;; We could set s to inode if it were otherwise nil,
1487 ;; with a similar reasoning as below for setting gid to uid,
1488 ;; but it would be even more whimsical.
1489 (setq inode
(when (match-string 1)
1490 (string-to-number (match-string 1))))
1491 (setq s
(when (match-string 2)
1492 (dired-x--string-to-number (match-string 2))))
1493 (setq mode
(buffer-substring (point) (+ mode-len
(point))))
1494 (forward-char mode-len
)
1495 ;; Skip any extended attributes marker ("." or "+").
1496 (or (looking-at " ")
1498 (setq nlink
(read (current-buffer)))
1499 ;; Karsten Wenger <kw@cis.uni-muenchen.de> fixed uid.
1500 ;; Another issue is that GNU ls -n right-justifies numerical
1501 ;; UIDs and GIDs, while FreeBSD left-justifies them, so
1502 ;; don't rely on a specific whitespace layout. Both of them
1503 ;; right-justify all other numbers, though.
1504 ;; XXX Return a number if the uid or gid seems to be
1506 (setq uid
(buffer-substring (progn
1507 (skip-chars-forward " \t")
1510 (skip-chars-forward "^ \t")
1512 (dired-move-to-filename)
1515 ;; The regexp below tries to match from the last
1516 ;; digit of the size field through a space after the
1517 ;; date. Also, dates may have different formats
1518 ;; depending on file age, so the date column need
1519 ;; not be aligned to the right.
1520 (buffer-substring (save-excursion
1521 (skip-chars-backward " \t")
1525 directory-listing-before-filename-regexp
)
1526 (skip-chars-forward "^ \t")
1528 size
(dired-x--string-to-number
1529 ;; We know that there's some kind of number
1530 ;; before point because the regexp search
1531 ;; above succeeded. I don't think it's worth
1532 ;; doing an extra check for leading garbage.
1533 (buffer-substring (point)
1535 (skip-chars-backward "^ \t")
1537 ;; If no gid is displayed, gid will be set to uid
1538 ;; but the user will then not reference it anyway in
1540 gid
(buffer-substring (progn
1541 (skip-chars-backward " \t")
1544 (skip-chars-backward "^ \t")
1546 (setq name
(buffer-substring (point)
1548 (dired-move-to-end-of-filename t
)
1550 sym
(if (looking-at " -> ")
1551 (buffer-substring (progn (forward-char 4) (point))
1552 (line-end-position))
1566 (format "'%s file" predicate
))))
1569 ;;; FIND FILE AT POINT.
1571 (defcustom dired-x-hands-off-my-keys t
1572 "Non-nil means don't remap `find-file' to `dired-x-find-file'.
1573 Similarly for `find-file-other-window' and `dired-x-find-file-other-window'.
1574 If you change this variable without using \\[customize] after `dired-x.el'
1575 is loaded then call \\[dired-x-bind-find-file]."
1577 :initialize
'custom-initialize-default
1578 :set
(lambda (symbol value
)
1580 (dired-x-bind-find-file))
1583 (defun dired-x-bind-find-file ()
1584 "Bind `dired-x-find-file' in place of `find-file' (or vice-versa).
1585 Similarly for `dired-x-find-file-other-window' and `find-file-other-window'.
1586 Binding direction based on `dired-x-hands-off-my-keys'."
1588 (if (called-interactively-p 'interactive
)
1589 (setq dired-x-hands-off-my-keys
1590 (not (y-or-n-p "Bind dired-x-find-file over find-file? "))))
1591 (define-key (current-global-map) [remap find-file
]
1592 (if (not dired-x-hands-off-my-keys
) 'dired-x-find-file
))
1593 (define-key (current-global-map) [remap find-file-other-window
]
1594 (if (not dired-x-hands-off-my-keys
) 'dired-x-find-file-other-window
)))
1596 ;; Now call it so binding is correct. This could go in the :initialize
1597 ;; slot, but then dired-x-bind-find-file has to be defined before the
1598 ;; defcustom, and we get free variable warnings.
1599 (dired-x-bind-find-file)
1601 (defun dired-x-find-file (filename)
1602 "Edit file FILENAME.
1603 Like `find-file', except that when called interactively with a
1604 prefix argument, it offers the filename near point as a default."
1605 (interactive (list (dired-x-read-filename-at-point "Find file: ")))
1606 (find-file filename
))
1608 (defun dired-x-find-file-other-window (filename)
1609 "Edit file FILENAME, in another window.
1610 Like `find-file-other-window', except that when called interactively with
1611 a prefix argument, when it offers the filename near point as a default."
1612 (interactive (list (dired-x-read-filename-at-point "Find file: ")))
1613 (find-file-other-window filename
))
1615 ;;; Internal functions.
1617 ;; Fixme: This should probably use `thing-at-point'. -- fx
1618 (defun dired-filename-at-point ()
1619 "Return the filename closest to point, expanded.
1620 Point should be in or after a filename."
1622 ;; First see if just past a filename.
1624 (when (looking-at-p "[] \t\n[{}()]") ; whitespace or some parens
1625 (skip-chars-backward " \n\t\r({[]})")
1626 (or (bobp) (backward-char 1))))
1627 (let ((filename-chars "-.[:alnum:]_/:$+@")
1629 (if (looking-at-p (format "[%s]" filename-chars
))
1631 (skip-chars-backward filename-chars
)
1634 ;; This is something to do with ange-ftp filenames.
1635 ;; It convert foo@bar to /foo@bar.
1636 ;; But when does the former occur in dired buffers?
1637 (and (string-match-p
1639 (buffer-substring start
(line-end-position)))
1641 (if (string-match-p "[/~]" (char-to-string (preceding-char)))
1642 (setq start
(1- start
)))
1643 (skip-chars-forward filename-chars
))
1644 (error "No file found around point!"))
1646 (expand-file-name (concat prefix
(buffer-substring start
(point)))))))
1648 (defun dired-x-read-filename-at-point (prompt)
1649 "Return filename prompting with PROMPT with completion.
1650 If `current-prefix-arg' is non-nil, uses name at point as guess."
1651 (if current-prefix-arg
1652 (let ((guess (dired-filename-at-point)))
1653 (read-file-name prompt
1654 (file-name-directory guess
)
1656 nil
(file-name-nondirectory guess
)))
1657 (read-file-name prompt default-directory
)))
1659 (define-obsolete-function-alias 'read-filename-at-point
1660 'dired-x-read-filename-at-point
"24.1") ; is this even needed?
1664 (define-obsolete-function-alias 'dired-x-submit-report
'report-emacs-bug
"24.1")
1667 ;; As Barry Warsaw would say: "This might be useful..."
1671 ;; byte-compile-dynamic: t
1672 ;; generated-autoload-file: "dired-loaddefs.el"
1675 ;;; dired-x.el ends here