1 ;;; dired-x.el --- Sebastian Kremer's Extra DIRED hacked up for GNU Emacs19
3 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>
4 ;; Lawrence R. Dodd <dodd@roebling.poly.edu>
5 ;; Maintainer: Lawrence R. Dodd <dodd@roebling.poly.edu>
7 ;; Date: 1994/08/18 19:27:42
8 ;; Keywords: dired extensions
10 ;; Copyright (C) 1993, 1994 Free Software Foundation
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 2, or (at your option)
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; see the file COPYING. If not, write to
26 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
30 ;;; This is Sebastian Kremer's excellent dired-x.el (Dired Extra), version
31 ;;; 1.191, hacked up for GNU Emacs 19. Redundant or conflicting material
32 ;;; has been removed or renamed in order to work properly with dired of
33 ;;; GNU Emacs 19. All suggestions or comments are most welcomed.
36 ;;; Please, PLEASE, *PLEASE* see the info pages.
39 ;;; BUGS: Type M-x dired-x-submit-report and a report will be generated.
41 ;;; INSTALLATION: In your ~/.emacs,
43 ;;; (add-hook 'dired-load-hook
44 ;;; (function (lambda ()
46 ;;; ;; Set variables here. For example:
47 ;;; ;; (setq dired-guess-shell-gnutar "gtar")
48 ;;; ;; (setq dired-omit-files-p t)
51 ;;; At load time dired-x.el will install itself, redefine some functions, and
52 ;;; bind some dired keys. *Please* see the info pages for more details.
54 ;;; CAUTION: If you are using a version of GNU Emacs earlier than 19.20 than
55 ;;; you may have to edit dired.el. The copy of dired.el in GNU Emacs versions
56 ;;; earlier than 19.20 incorrectly had the call to run-hooks *before* the call
57 ;;; to provide. In such a case, it is possible that byte-compiling and/or
58 ;;; loading dired can cause an infinite loop. To prevent this, make sure the
61 ;;; (run-hooks 'dired-load-hook)
63 ;;; is the *last* executable line in the file dired.el. That is, make sure it
64 ;;; comes *after* the line
68 ;;; *Please* see the info pages for more details.
70 ;;; User defined variables:
73 ;;; dired-vm-read-only-folders
77 ;;; dired-x-hands-off-my-keys
79 ;;; dired-enable-local-variables
80 ;;; dired-local-variables-file
81 ;;; dired-guess-shell-gnutar
82 ;;; dired-guess-shell-gzip-quiet
83 ;;; dired-guess-shell-znew-switches
84 ;;; dired-guess-shell-alist-user
85 ;;; dired-clean-up-buffers-too
86 ;;; dired-omit-files-p
88 ;;; dired-omit-extensions
90 ;;; To find out more about these variables, load this file, put your cursor at
91 ;;; the end of any of the variable names, and hit C-h v [RET]. *Please* see
92 ;;; the info pages for more details.
94 ;;; When loaded this code redefines the following functions of GNU Emacs
96 ;;; Function Found in this file of GNU Emacs
97 ;;; -------- -------------------------------
98 ;;; dired-clean-up-after-deletion ../lisp/dired.el
99 ;;; dired-find-buffer-nocreate ../lisp/dired.el
100 ;;; dired-initial-position ../lisp/dired.el
101 ;;; dired-up-directory ../lisp/dired.el
103 ;;; dired-add-entry ../lisp/dired-aux.el
104 ;;; dired-read-shell-command ../lisp/dired-aux.el
106 ;;; One drawback is that dired-x.el will load dired-aux.el as soon as dired is
107 ;;; loaded. Thus, the advantage of separating out non-essential dired stuff
108 ;;; into dired-aux.el and only loading when necessary will be lost. Please
109 ;;; note also that some of the comments in dired.el and dired-aux.el are
110 ;;; Kremer's that referred to the old dired-x.el. This now should be referring
111 ;;; to this program. (This is also a good reason to call this dired-x.el
112 ;;; instead of dired-x19.el.)
119 ;;; This is a no-op if dired-x is being loaded via `dired-load-hook'. It is
120 ;;; here in case the user has autoloaded dired-x via the dired-jump key binding
121 ;;; (instead of autoloading to dired as is suggested in the info-pages).
125 ;;; We will redefine some functions and also need some macros so we need to
126 ;;; load dired stuff of GNU Emacs.
130 ;;;; User-defined variables.
132 (defvar dired-bind-vm nil
133 "*t says \"V\" in dired-mode will `dired-vm', otherwise \"V\" is `dired-rmail'.
134 Also, RMAIL files contain -*- rmail -*- at the top so \"f\",
135 `dired-advertised-find-file', will run rmail.")
137 (defvar dired-bind-jump t
138 "*t says bind `dired-jump' to C-x C-j, otherwise do not.")
140 (defvar dired-bind-man t
141 "*t says bind `dired-man' to \"N\" in dired-mode, otherwise do not.")
143 (defvar dired-bind-info t
144 "*t says bind `dired-info' to \"I\" in dired-mode, otherwise do not.")
146 (defvar dired-vm-read-only-folders nil
147 "*If t, \\[dired-vm] will visit all folders read-only.
148 If neither nil nor t, e.g. the symbol `if-file-read-only', only
149 files not writable by you are visited read-only.
151 Read-only folders only work in VM 5, not in VM 4.")
153 (defvar dired-omit-files-p nil
154 "*If non-nil, \"uninteresting\" files are not listed (buffer-local).
155 Use \\[dired-omit-toggle] to toggle its value.
156 Uninteresting files are those whose filenames match regexp `dired-omit-files',
157 plus those ending with extensions in `dired-omit-extensions'.")
159 (defvar dired-omit-files "^#\\|^\\.$\\|^\\.\\.$"
160 "*Filenames matching this regexp will not be displayed \(buffer-local\).
161 This only has effect when `dired-omit-files-p' is t. See interactive function
162 `dired-omit-toggle' \(\\[dired-omit-toggle]\) and variable
163 `dired-omit-extensions'. The default is to omit `.', `..', and auto-save
166 (defvar dired-find-subdir nil ; t is pretty near to DWIM...
167 "*If non-nil, Dired does not make a new buffer for a directory if it
168 can be found (perhaps as subdir) in some existing Dired buffer.
170 If there are several Dired buffers for a directory, the most recently
173 Dired avoids switching to the current buffer, so that if you have
174 a normal and a wildcard buffer for the same directory, C-x d RET will
175 toggle between those two.")
177 (defvar dired-enable-local-variables t
178 "*Control use of local-variables lists in dired.
179 The value can be t, nil or something else.
180 A value of t means local-variables lists are obeyed;
181 nil means they are ignored; anything else means query.
183 This temporarily overrides the value of `enable-local-variables' when listing
184 a directory. See also `dired-local-variables-file'.")
186 (defvar dired-guess-shell-gnutar nil
187 "*If non-nil, name of GNU tar executable (e.g., \"tar\" or \"gtar\") and `z'
188 switch will be used for compressed or gzip'ed tar files. If no GNU tar, set
189 to nil: a pipe using `zcat' or `gunzip -c' will be used.")
191 (defvar dired-guess-shell-gzip-quiet t
192 "*non-nil says pass -q to gzip overriding verbose GZIP environment.")
194 (defvar dired-guess-shell-znew-switches nil
195 "*If non-nil, then string of switches passed to `znew', example: \"-K\"")
197 (defvar dired-clean-up-buffers-too t
198 "*t says offer to kill buffers visiting files and dirs deleted in dired.")
202 (define-key dired-mode-map "\M-o" 'dired-omit-toggle)
203 (define-key dired-mode-map "\M-(" 'dired-mark-sexp)
204 (define-key dired-mode-map "\M-!" 'dired-smart-shell-command)
205 (define-key dired-mode-map "T" 'dired-do-toggle)
206 (define-key dired-mode-map "w" 'dired-copy-filename-as-kill)
207 (define-key dired-mode-map "\M-g" 'dired-goto-file)
208 (define-key dired-mode-map "\M-G" 'dired-goto-subdir)
209 (define-key dired-mode-map "F" 'dired-do-find-marked-files)
210 (define-key dired-mode-map "Y" 'dired-do-relsymlink)
211 (define-key dired-mode-map "%Y" 'dired-do-relsymlink-regexp)
212 (define-key dired-mode-map "V" 'dired-do-run-mail)
215 (define-key dired-mode-map "N" 'dired-man))
218 (define-key dired-mode-map "I" 'dired-info))
223 (define-key global-map "\C-x\C-j" 'dired-jump)
224 (define-key global-map "\C-x4\C-j" 'dired-jump-other-window)))
227 ;;;; Install into appropriate hooks.
229 (add-hook 'dired-mode-hook 'dired-extra-startup)
230 (add-hook 'dired-after-readin-hook 'dired-omit-expunge)
232 (defun dired-extra-startup ()
233 "Automatically put on dired-mode-hook to get extra dired features:
236 \\[dired-do-run-mail]\t-- run mail on folder (see `dired-bind-vm')
237 \\[dired-info]\t-- run info on file
238 \\[dired-man]\t-- run man on file
239 \\[dired-do-find-marked-files]\t-- visit all marked files simultaneously
240 \\[dired-omit-toggle]\t-- toggle omitting of files
241 \\[dired-do-toggle]\t-- toggle marks
242 \\[dired-mark-sexp]\t-- mark by lisp expression
243 \\[dired-copy-filename-as-kill]\t-- copy the file or subdir names into the kill ring.
244 \t You can feed it to other commands using \\[yank].
246 For more features, see variables
252 dired-vm-read-only-folders
255 dired-omit-extensions
257 dired-enable-local-variables
258 dired-local-variables-file
259 dired-guess-shell-gnutar
260 dired-guess-shell-gzip-quiet
261 dired-guess-shell-znew-switches
262 dired-guess-shell-alist-user
263 dired-clean-up-buffers-too
274 dired-do-find-marked-files
278 ;; These must be done in each new dired buffer.
279 (dired-hack-local-variables)
280 (dired-omit-startup))
283 ;;;; BUFFER CLEANING.
286 (defun dired-clean-up-after-deletion (fn)
288 ;; Clean up after a deleted file or directory FN.
289 ;; Remove expanded subdir of deleted dir, if any.
290 (save-excursion (and (cdr dired-subdir-alist)
291 (dired-goto-subdir fn)
292 (dired-kill-subdir)))
294 ;; Offer to kill buffer of deleted file FN.
295 (if dired-clean-up-buffers-too
297 (let ((buf (get-file-buffer fn)))
299 (funcall (function y-or-n-p)
300 (format "Kill buffer of %s, too? "
301 (file-name-nondirectory fn)))
302 (save-excursion ; you never know where kill-buffer leaves you
304 (let ((buf-list (dired-buffers-for-dir (expand-file-name fn)))
307 (y-or-n-p (format "Kill dired buffer%s of %s, too? "
308 (dired-plural-s (length buf-list))
309 (file-name-nondirectory fn)))
311 (save-excursion (kill-buffer (car buf-list)))
312 (setq buf-list (cdr buf-list)))))))
317 ;;;; EXTENSION MARKING FUNCTIONS.
319 ;;; Mark files with some extension.
320 (defun dired-mark-extension (extension &optional marker-char)
321 "Mark all files with a certain extension for use in later commands.
322 A `.' is not automatically prepended to the string entered."
323 ;; EXTENSION may also be a list of extensions instead of a single one.
324 ;; Optional MARKER-CHAR is marker to use.
325 (interactive "sMarking extension: \nP")
326 (or (listp extension)
327 (setq extension (list extension)))
328 (dired-mark-files-regexp
329 (concat ".";; don't match names with nothing but an extension
331 (mapconcat 'regexp-quote extension "\\|")
335 (defun dired-flag-extension (extension)
336 "In dired, flag all files with a certain extension for deletion.
337 A `.' is *not* automatically prepended to the string entered."
338 (interactive "sFlagging extension: ")
339 (dired-mark-extension extension dired-del-marker))
341 ;;; Define some unpopular file extensions. Used for cleaning and omitting.
343 (defvar dired-patch-unclean-extensions
345 "List of extensions of dispensable files created by the `patch' program.")
347 (defvar dired-tex-unclean-extensions
348 '(".toc" ".log" ".aux");; these are already in completion-ignored-extensions
349 "List of extensions of dispensable files created by TeX.")
351 (defvar dired-latex-unclean-extensions
352 '(".idx" ".lof" ".lot" ".glo")
353 "List of extensions of dispensable files created by LaTeX.")
355 (defvar dired-bibtex-unclean-extensions
357 "List of extensions of dispensable files created by BibTeX.")
359 (defvar dired-texinfo-unclean-extensions
360 '(".cp" ".cps" ".fn" ".fns" ".ky" ".kys" ".pg" ".pgs"
361 ".tp" ".tps" ".vr" ".vrs")
362 "List of extensions of dispensable files created by texinfo.")
364 (defun dired-clean-patch ()
365 "Flag dispensable files created by patch for deletion.
366 See variable `dired-patch-unclean-extensions'."
368 (dired-flag-extension dired-patch-unclean-extensions))
370 (defun dired-clean-tex ()
371 "Flag dispensable files created by [La]TeX etc. for deletion.
372 See variables `dired-texinfo-unclean-extensions',
373 `dired-latex-unclean-extensions', `dired-bibtex-unclean-extensions' and
374 `dired-texinfo-unclean-extensions'."
376 (dired-flag-extension (append dired-texinfo-unclean-extensions
377 dired-latex-unclean-extensions
378 dired-bibtex-unclean-extensions
379 dired-tex-unclean-extensions)))
381 (defun dired-very-clean-tex ()
382 "Flag dispensable files created by [La]TeX *and* \".dvi\" for deletion.
383 See variables `dired-texinfo-unclean-extensions',
384 `dired-latex-unclean-extensions', `dired-bibtex-unclean-extensions' and
385 `dired-texinfo-unclean-extensions'."
387 (dired-flag-extension (append dired-texinfo-unclean-extensions
388 dired-latex-unclean-extensions
389 dired-bibtex-unclean-extensions
390 dired-tex-unclean-extensions
396 (defun dired-jump (&optional other-window)
397 "Jump to dired buffer corresponding to current buffer.
398 If in a file, dired the current directory and move to file's line.
399 If in dired already, pop up a level and goto old directory's line.
400 In case the proper dired file line cannot be found, refresh the dired
401 buffer and try again."
403 (let* ((file buffer-file-name)
404 (dir (if file (file-name-directory file) default-directory)))
405 (if (eq major-mode 'dired-mode)
407 (setq dir (dired-current-directory))
408 (dired-up-directory other-window)
409 (or (dired-goto-file dir)
410 ;; refresh and try again
412 (dired-insert-subdir (file-name-directory dir))
413 (dired-goto-file dir))))
415 (dired-other-window dir)
418 (or (dired-goto-file file)
419 ;; Toggle omitting, if necessary, and try again.
421 (dired-omit-toggle t)
422 (dired-goto-file file))
423 ;; refresh and try again
425 (dired-insert-subdir (file-name-directory file))
426 (dired-goto-file file)))))))
428 (defun dired-jump-other-window ()
429 "Like \\[dired-jump] (dired-jump) but in other window."
434 ;;; This replaces the version in dired.el
435 ;;; It simply adds the OTHER-WINDOW option to the one in dired.el.
436 (defun dired-up-directory (&optional other-window)
437 "Run dired on parent directory of current directory.
438 Find the parent directory either in this buffer or another buffer.
439 Finds in current window or in other window with optional OTHER-WINDOW.
440 Creates a buffer if necessary."
442 (let* ((dir (dired-current-directory))
443 (up (file-name-directory (directory-file-name dir))))
444 (or (dired-goto-file (directory-file-name dir))
445 ;; Only try dired-goto-subdir if buffer has more than one dir.
446 (and (cdr dired-subdir-alist)
447 (dired-goto-subdir up))
450 (dired-other-window up)
452 (dired-goto-file dir)))))
456 ;;; Toggle marked files with unmarked files.
458 (defun dired-do-toggle ()
460 That is, currently marked files become unmarked and vice versa.
461 Files marked with other flags (such as `D') are not affected.
462 `.' and `..' are never toggled.
463 As always, hidden subdirs are not affected."
466 (goto-char (point-min))
467 (let (buffer-read-only)
469 (or (dired-between-files)
470 (looking-at dired-re-dot)
471 ;; use subst instead of insdel because it does not move
472 ;; the gap and thus should be faster and because
473 ;; other characters are left alone automatically
474 (apply 'subst-char-in-region
476 (if (eq ?\040 (following-char)) ; SPC
477 (list ?\040 dired-marker-char)
478 (list dired-marker-char ?\040))))
482 ;;;; COPY NAMES OF MARKED FILES INTO KILL-RING.
484 (defun dired-copy-filename-as-kill (&optional arg)
485 "Copy names of marked (or next ARG) files into the kill ring.
486 The names are separated by a space.
487 With a zero prefix arg, use the complete pathname of each marked file.
488 With \\[universal-argument], use the relative pathname of each marked file.
490 If on a subdir headerline, use subdirname instead; prefix arg is ignored
493 You can then feed the file name(s) to other commands with \\[yank]."
496 (or (dired-get-subdir)
497 (mapconcat (function identity)
499 (cond ((zerop (prefix-numeric-value arg))
500 (dired-get-marked-files))
502 (dired-get-marked-files 'no-dir arg))
504 (dired-get-marked-files t)))
505 (dired-get-marked-files 'no-dir))
508 (message "%s" string)))
513 ;;; Enhanced omitting of lines from directory listings.
514 ;;; Marked files are never omitted.
516 ;; should probably get rid of this and always use 'no-dir.
517 ;; sk 28-Aug-1991 09:37
518 (defvar dired-omit-localp 'no-dir
519 "The LOCALP argument dired-omit-expunge passes to dired-get-filename.
520 If it is 'no-dir, omitting is much faster, but you can only match
521 against the basename of the file. Set it to nil if you need to match the
524 ;; \017=^O for Omit - other packages can chose other control characters.
525 (defvar dired-omit-marker-char ?\017
526 "Temporary marker used by by dired-omit.
527 Should never be used as marker by the user or other packages.")
529 (defun dired-omit-startup ()
530 (make-local-variable 'dired-omit-files-p)
531 (or (assq 'dired-omit-files-p minor-mode-alist)
532 (setq minor-mode-alist
533 (append '((dired-omit-files-p " Omit")) minor-mode-alist))))
535 (defun dired-omit-toggle (&optional flag)
536 "Toggle omitting files matching `dired-omit-files' and `dired-omit-extensions'.
537 With an arg, and if omitting was off, don't toggle and just mark the
538 files but don't actually omit them.
539 With an arg, and if omitting was on, turn it off but don't refresh the buffer."
542 (if dired-omit-files-p
543 (setq dired-omit-files-p (not dired-omit-files-p))
544 (dired-mark-unmarked-files (dired-omit-regexp) nil nil
547 (setq dired-omit-files-p (not dired-omit-files-p))
548 (if (not dired-omit-files-p)
550 ;; this will mention how many were omitted:
551 (dired-omit-expunge))))
553 (defvar dired-omit-extensions
554 (append completion-ignored-extensions
555 dired-latex-unclean-extensions
556 dired-bibtex-unclean-extensions
557 dired-texinfo-unclean-extensions)
558 "If non-nil, a list of extensions \(strings\) to omit from Dired listings.
559 Defaults to elements of `completion-ignored-extensions',
560 `dired-latex-unclean-extensions', `dired-bibtex-unclean-extensions', and
561 `dired-texinfo-unclean-extensions'.
563 See interactive function `dired-omit-toggle' \(\\[dired-omit-toggle]\) and
564 variables `dired-omit-files-p' and `dired-omit-files'.")
566 (defun dired-omit-expunge (&optional regexp)
567 "Erases all unmarked files matching REGEXP.
568 Does nothing if global variable `dired-omit-files-p' is nil.
569 If REGEXP is nil or not specified, uses `dired-omit-files', and also omits
570 filenames ending in `dired-omit-extensions'.
571 If REGEXP is the empty string, this function is a no-op.
573 This functions works by temporarily binding `dired-marker-char' to
574 `dired-omit-marker-char' and calling `dired-do-kill-lines'."
575 (interactive "sOmit files (regexp): ")
576 (if dired-omit-files-p
577 (let ((omit-re (or regexp (dired-omit-regexp)))
578 (old-modified-p (buffer-modified-p))
580 (or (string= omit-re "")
581 (let ((dired-marker-char dired-omit-marker-char))
582 (message "Omitting...")
583 (if (dired-mark-unmarked-files omit-re nil nil dired-omit-localp)
585 (setq count (dired-do-kill-lines nil "Omitted %d line%s."))
586 ;; Force an update of modeline.
587 (set-buffer-modified-p (buffer-modified-p)))
588 (message "(Nothing to omit)"))))
589 ;; Try to preserve modified state of buffer. So `%*' doesn't appear
590 ;; in mode-line of omitted buffers.
591 (set-buffer-modified-p (and old-modified-p
593 (goto-char (point-min))
594 (re-search-forward dired-re-mark nil t))))
597 (defun dired-omit-regexp ()
598 (concat (if dired-omit-files (concat "\\(" dired-omit-files "\\)") "")
599 (if (and dired-omit-files dired-omit-extensions) "\\|" "")
600 (if dired-omit-extensions
601 (concat ".";; a non-extension part should exist
603 (mapconcat 'regexp-quote dired-omit-extensions "\\|")
607 ;; Returns t if any work was done, nil otherwise.
608 (defun dired-mark-unmarked-files (regexp msg &optional unflag-p localp)
609 "Marks unmarked files matching REGEXP, displaying MSG.
610 REGEXP is matched against the complete pathname.
611 Does not re-mark files which already have a mark.
612 With prefix argument, unflag all those files.
613 Second optional argument LOCALP is as in `dired-get-filename'."
615 (let ((dired-marker-char (if unflag-p ?\ dired-marker-char)))
618 ;; not already marked
621 (let ((fn (dired-get-filename localp t)))
622 (and fn (string-match regexp fn))))
626 (defun dired-omit-new-add-entry (filename &optional marker-char)
627 ;; This redefines dired-aux.el's dired-add-entry to avoid calling ls for
628 ;; files that are going to be omitted anyway.
629 (if dired-omit-files-p
630 ;; perhaps return t without calling ls
631 (let ((omit-re (dired-omit-regexp)))
632 (if (or (string= omit-re "")
634 (string-match omit-re
636 ((eq 'no-dir dired-omit-localp)
638 ((eq t dired-omit-localp)
639 (dired-make-relative filename))
643 (file-name-directory filename)))))))
644 ;; if it didn't match, go ahead and add the entry
645 (dired-omit-old-add-entry filename marker-char)
646 ;; dired-add-entry returns t for success, perhaps we should
647 ;; return file-exists-p
649 ;; omitting is not turned on at all
650 (dired-omit-old-add-entry filename marker-char)))
653 ;;; Redefine dired-aux.el's version of `dired-add-entry'
654 ;;; Save old defun if not already done:
655 (or (fboundp 'dired-omit-old-add-entry)
656 (fset 'dired-omit-old-add-entry (symbol-function 'dired-add-entry)))
658 (fset 'dired-add-entry 'dired-omit-new-add-entry)
661 ;;;; VIRTUAL DIRED MODE.
663 ;;; For browsing `ls -lR' listings in a dired-like fashion.
665 (fset 'virtual-dired 'dired-virtual)
666 (defun dired-virtual (dirname &optional switches)
667 "Put this buffer into Virtual Dired mode.
669 In Virtual Dired mode, all commands that do not actually consult the
670 filesystem will work.
672 This is useful if you want to peruse and move around in an ls -lR
673 output file, for example one you got from an ftp server. With
674 ange-ftp, you can even dired a directory containing an ls-lR file,
675 visit that file and turn on virtual dired mode. But don't try to save
676 this file, as dired-virtual indents the listing and thus changes the
679 If you have save a Dired buffer in a file you can use \\[dired-virtual] to
680 resume it in a later session.
682 Type \\<dired-mode-map>\\[revert-buffer] in the
683 Virtual Dired buffer and answer `y' to convert the virtual to a real
684 dired buffer again. You don't have to do this, though: you can relist
685 single subdirs using \\[dired-do-redisplay].
688 ;; DIRNAME is the top level directory of the buffer. It will become
689 ;; its `default-directory'. If nil, the old value of
690 ;; default-directory is used.
692 ;; Optional SWITCHES are the ls switches to use.
694 ;; Shell wildcards will be used if there already is a `wildcard'
695 ;; line in the buffer (thus it is a saved Dired buffer), but there
696 ;; is no other way to get wildcards. Insert a `wildcard' line by
697 ;; hand if you want them.
700 (list (read-string "Virtual Dired directory: " (dired-virtual-guess-dir))))
701 (goto-char (point-min))
703 ;; if not already indented, do it now:
704 (indent-region (point-min) (point-max) 2))
705 (or dirname (setq dirname default-directory))
706 (setq dirname (expand-file-name (file-name-as-directory dirname)))
707 (setq default-directory dirname) ; contains no wildcards
708 (let ((wildcard (save-excursion
709 (goto-char (point-min))
711 (and (looking-at "^ wildcard ")
712 (buffer-substring (match-end 0)
713 (progn (end-of-line) (point)))))))
715 (setq dirname (expand-file-name wildcard default-directory))))
716 ;; If raw ls listing (not a saved old dired buffer), give it a
717 ;; decent subdir headerline:
718 (goto-char (point-min))
719 (or (looking-at dired-subdir-regexp)
720 (dired-insert-headerline default-directory))
721 (dired-mode dirname (or switches dired-listing-switches))
722 (setq mode-name "Virtual Dired"
723 revert-buffer-function 'dired-virtual-revert)
724 (set (make-local-variable 'dired-subdir-alist) nil)
725 (dired-build-subdir-alist)
726 (goto-char (point-min))
727 (dired-initial-position dirname))
729 (defun dired-virtual-guess-dir ()
731 ;; Guess and return appropriate working directory of this buffer,
732 ;; assumed to be in Dired or ls -lR format.
733 ;; The guess is based upon buffer contents.
734 ;; If nothing could be guessed, returns nil.
736 (let ((regexp "^\\( \\)?\\([^ \n\r]*\\)\\(:\\)[\n\r]")
738 (goto-char (point-min))
739 (cond ((looking-at regexp)
740 ;; If a saved dired buffer, look to which dir and
741 ;; perhaps wildcard it belongs:
742 (let ((dir (buffer-substring (match-beginning subexpr)
743 (match-end subexpr))))
744 (file-name-as-directory dir)))
745 ;; Else no match for headerline found. It's a raw ls listing.
746 ;; In raw ls listings the directory does not have a headerline
747 ;; try parent of first subdir, if any
748 ((re-search-forward regexp nil t)
751 (file-name-as-directory
752 (buffer-substring (match-beginning subexpr)
753 (match-end subexpr))))))
754 (t ; if all else fails
758 (defun dired-virtual-revert (&optional arg noconfirm)
760 (y-or-n-p "Cannot revert a Virtual Dired buffer - switch to Real Dired mode? "))
761 (error "Cannot revert a Virtual Dired buffer.")
762 (setq mode-name "Dired"
763 revert-buffer-function 'dired-revert)
766 ;; A zero-arg version of dired-virtual.
767 ;; You need my modified version of set-auto-mode for the
768 ;; `buffer-contents-mode-alist'.
769 ;; Or you use infer-mode.el and infer-mode-alist, same syntax.
770 (defun dired-virtual-mode ()
771 "Put current buffer into virtual dired mode (see `dired-virtual').
772 Useful on `buffer-contents-mode-alist' (which see) with the regexp
774 \"^ \\(/[^ /]+\\)/?+:$\"
776 to put saved dired buffers automatically into virtual dired mode.
778 Also useful for `auto-mode-alist' (which see) like this:
780 \(setq auto-mode-alist (cons '(\"[^/]\\.dired\\'\" . dired-virtual-mode)
783 (dired-virtual (dired-virtual-guess-dir)))
788 ;;; An Emacs buffer can have but one working directory, stored in the
789 ;;; buffer-local variable `default-directory'. A Dired buffer may have
790 ;;; several subdirectories inserted, but still has but one working directory:
791 ;;; that of the top level Dired directory in that buffer. For some commands
792 ;;; it is appropriate that they use the current Dired directory instead of
793 ;;; `default-directory', e.g., `find-file' and `compile'. This is a general
794 ;;; mechanism is provided for special handling of the working directory in
795 ;;; special major modes.
797 ;; It's easier to add to this alist than redefine function
798 ;; default-directory while keeping the old information.
799 (defconst default-directory-alist
800 '((dired-mode . (if (fboundp 'dired-current-directory)
801 (dired-current-directory)
803 "Alist of major modes and their opinion on default-directory, as a
804 lisp expression to evaluate. A resulting value of nil is ignored in
805 favor of default-directory.")
807 (defun default-directory ()
808 "Usage like variable `default-directory', but knows about the special
809 cases in variable `default-directory-alist' (which see)."
810 (or (eval (cdr (assq major-mode default-directory-alist)))
813 (defun dired-smart-shell-command (cmd &optional insert)
814 "Like function `shell-command', but in the current Tree Dired directory."
815 (interactive "sShell command: \nP")
816 (let ((default-directory (default-directory)))
817 (shell-command cmd insert)))
820 ;;;; LOCAL VARIABLES FOR DIRED BUFFERS.
822 ;;; Brief Description:
824 ;;; * `dired-extra-startup' is part of the `dired-mode-hook'.
826 ;;; * `dired-extra-startup' calls `dired-hack-local-variables'
828 ;;; * `dired-hack-local-variables' checks the value of
829 ;;; `dired-local-variables-file'
831 ;;; * Check if `dired-local-variables-file' is a non-nil string and is a
832 ;;; filename found in the directory of the Dired Buffer being created.
834 ;;; * If `dired-local-variables-file' satisfies the above, then temporarily
835 ;;; include it in the Dired Buffer at the bottom.
837 ;;; * Set `enable-local-variables' temporarily to the user variable
838 ;;; `dired-enable-local-variables' and run `hack-local-variables' on the
841 (defvar dired-local-variables-file ".dired"
842 "Filename, as string, containing local dired buffer variables to be hacked.
843 If this file found in current directory, then it will be inserted into dired
844 buffer and `hack-local-variables' will be run. See Emacs Info pages for more
845 information on local variables. See also `dired-enable-local-variables'.")
847 (defun dired-hack-local-variables ()
848 "Evaluate local variables in `dired-local-variables-file' for dired buffer."
849 (if (and dired-local-variables-file
850 (stringp dired-local-variables-file)
851 (file-exists-p dired-local-variables-file))
852 (let ((opoint (point-max))
854 ;; In case user has `enable-local-variables' set to nil we
855 ;; override it locally with dired's variable.
856 (enable-local-variables dired-enable-local-variables))
861 (insert-file-contents dired-local-variables-file))
863 (let ((buffer-file-name dired-local-variables-file))
864 (hack-local-variables))
865 ;; Make sure that the modeline shows the proper information.
866 (dired-sort-set-modeline)
867 ;; Delete this stuff: `eobp' is used to find last subdir by dired.el.
868 (delete-region opoint (point-max)))))
870 (defun dired-omit-here-always ()
871 "Creates `dired-local-variables-file' for omitting and reverts directory.
872 Sets dired-omit-file-p to t in a local variables file that is readable by
875 (if (file-exists-p dired-local-variables-file)
876 (message "File `./%s' already exists." dired-local-variables-file)
878 ;; Create `dired-local-variables-file'.
880 (set-buffer (get-buffer-create " *dot-dired*"))
882 (insert "Local Variables:\ndired-omit-files-p: t\nEnd:\n")
883 (write-file dired-local-variables-file)
884 (kill-buffer (current-buffer)))
886 ;; Run extra-hooks and revert directory.
887 (dired-extra-startup)
891 ;;;; GUESS SHELL COMMAND.
893 ;;; Brief Description:
895 ;;; `dired-do-shell-command' is bound to `!' by dired.el.
897 ;;; * Redefine `dired-do-shell-command' so it calls
898 ;;; `dired-guess-shell-command'.
900 ;;; * `dired-guess-shell-command' calls `dired-guess-default' with list of
903 ;;; * Parse `dired-guess-shell-alist-user' and
904 ;;; `dired-guess-shell-alist-default' (in that order) for the first REGEXP
905 ;;; that matches the first file in the file list.
907 ;;; * If the REGEXP matches all the entries of the file list then evaluate
908 ;;; COMMAND, which is either a string or an elisp expression returning a
909 ;;; string. COMMAND may be a list of commands.
911 ;;; * Return this command to `dired-guess-shell-command' which prompts user
912 ;;; with it. The list of commands are temporaily put into the history list.
913 ;;; If a command is used successfully then it is stored permanently in
914 ;;; `dired-shell-command-history'.
916 ;;; Guess what shell command to apply to a file.
917 (defvar dired-shell-command-history nil
918 "History list for commands that read dired-shell commands.")
920 ;;; Default list of shell commands.
922 ;;; NOTE: Use `gunzip -c' instead of `zcat' on `.gz' files. Some do not
923 ;;; install GNU zip's version of zcat.
925 (defvar dired-guess-shell-alist-default
927 (list "\\.tar$" '(if dired-guess-shell-gnutar
928 (concat dired-guess-shell-gnutar " xvf")
931 ;; REGEXPS for compressed archives must come before the .Z rule to
935 '(if dired-guess-shell-gnutar
936 (concat dired-guess-shell-gnutar " zxvf")
937 (concat "zcat * | tar xvf -"))
938 ;; Optional conversion to gzip format.
939 '(concat "znew" (if dired-guess-shell-gzip-quiet " -q")
940 " " dired-guess-shell-znew-switches))
943 (list "\\.tar\\.g?z$"
944 '(if dired-guess-shell-gnutar
945 (concat dired-guess-shell-gnutar " zxvf")
946 (concat "gunzip -qc * | tar xvf -"))
947 ;; Optional decompression.
948 '(concat "gunzip" (if dired-guess-shell-gzip-quiet " -q" "")))
950 '("\\.shar.Z$" "zcat * | unshar")
951 '("\\.shar.g?z$" "gunzip -qc * | unshar")
953 '("\\.ps$" "ghostview" "xv" "lpr")
954 (list "\\.ps.g?z$" "gunzip -qc * | ghostview -"
955 ;; Optional decompression.
956 '(concat "gunzip" (if dired-guess-shell-gzip-quiet " -q")))
957 (list "\\.ps.Z$" "zcat * | ghostview -"
958 ;; Optional conversion to gzip format.
959 '(concat "znew" (if dired-guess-shell-gzip-quiet " -q")
960 " " dired-guess-shell-znew-switches))
961 '("\\.patch$" "cat * | patch")
962 '("\\.patch.g?z$" "gunzip -qc * | patch")
963 (list "\\.patch.Z$" "zcat * | patch"
964 ;; Optional conversion to gzip format.
965 '(concat "znew" (if dired-guess-shell-gzip-quiet " -q")
966 " " dired-guess-shell-znew-switches))
968 '("\\.dvi$" "xdvi" "dvips") ; preview and printing
969 '("\\.au$" "play") ; play Sun audiofiles
970 '("\\.mpg$" "mpeg_play")
971 '("\\.uu$" "uudecode") ; for uudecoded files
972 '("\\.hqx$" "mcvert")
973 '("\\.sh$" "sh") ; execute shell scripts
974 '("\\.xbm$" "bitmap") ; view X11 bitmaps
975 '("\\.gp$" "gnuplot")
976 '("\\.p[bgpn]m$" "xv")
977 '("\\.gif$" "xv") ; view gif pictures
980 '("\\.fig$" "xfig") ; edit fig pictures
981 '("\\.out$" "xgraph") ; for plotting purposes.
982 '("\\.tex$" "latex" "tex")
983 '("\\.texi\\(nfo\\)?$" "makeinfo" "texi2dvi")
985 ;; Some other popular archivers.
986 '("\\.zoo$" "zoo x//")
988 '("\\.lzh$" "lharc x")
990 '("\\.shar$" "unshar")
993 (list "\\.g?z$" '(concat "gunzip" (if dired-guess-shell-gzip-quiet " -q")))
994 (list "\\.Z$" "uncompress"
995 ;; Optional conversion to gzip format.
996 '(concat "znew" (if dired-guess-shell-gzip-quiet " -q")
997 " " dired-guess-shell-znew-switches))
1000 "Default alist used for shell command guessing.
1001 See `dired-guess-shell-alist-user'")
1003 (defvar dired-guess-shell-alist-user nil
1004 "User-defined alist of rules for suggested commands. These rules take
1005 precedence over the predefined rules in the variable
1006 `dired-guess-shell-alist-default' (to which they are prepended).
1008 Each element of this list looks like
1010 \(REGEXP COMMAND...\)
1012 where each COMMAND can either be a string or a lisp expression that evaluates
1013 to a string. If several COMMANDs are given, the first one will be the default
1014 and the rest will be added temporarily to the history and can be retrieved
1015 with \\[previous-history-element] (M-p) .
1017 You can set this variable in your ~/.emacs. For example, to add rules for
1018 `.foo' and `.bar' files, write
1020 \(setq dired-guess-shell-alist-user
1021 (list (list \"\\\\.foo$\" \"FOO-COMMAND\");; fixed rule
1022 ;; possibly more rules ...
1023 (list \"\\\\.bar$\";; rule with condition test
1026 \"BAR-COMMAND-2\")))\)
1029 (defun dired-guess-default (files)
1031 ;; Guess a shell commands for FILES. Return command or list of commands.
1032 ;; See `dired-guess-shell-alist-user'.
1034 (let* ((case-fold-search nil) ; case-sensitive matching
1035 ;; Prepend the user's alist to the default alist.
1036 (alist (append dired-guess-shell-alist-user
1037 dired-guess-shell-alist-default))
1042 ;; Find the first match in the alist for first file in FILES.
1044 (setq elt (car alist)
1047 (if (string-match regexp file)
1048 (setq cmds (cdr elt)
1051 ;; If more than one file, see if all of FILES match regular expression.
1053 (string-match regexp (car flist)))
1054 (setq flist (cdr flist)))
1056 ;; If flist is still non-nil, then do not guess since this means that not
1057 ;; all the files in FILES were matched by the regexp.
1058 (setq cmds (and (not flist) cmds))
1060 ;; Return commands or nil if flist is still non-nil.
1061 ;; Evaluate the commands in order that any logical testing will be done.
1062 (cond ((not (cdr cmds))
1063 (eval (car cmds))) ; single command
1065 (mapcar (function eval) cmds)))))
1067 (defun dired-guess-shell-command (prompt files)
1069 ;; Ask user with PROMPT for a shell command, guessing a default from FILES.
1071 (let ((default (dired-guess-default files))
1072 default-list old-history val (failed t))
1076 (read-from-minibuffer prompt nil nil nil 'dired-shell-command-history)
1078 ;; Save current history list
1079 (setq old-history dired-shell-command-history)
1083 ;; More than one guess
1084 (setq default-list default
1085 default (car default)
1088 (format "{%d guesses} " (length default-list))))
1091 (setq default-list (list default)))
1093 ;; Push all guesses onto history so that they can be retrieved with M-p
1094 ;; and put the first guess in the prompt but not in the initial value.
1095 (setq dired-shell-command-history
1096 (append default-list dired-shell-command-history)
1097 prompt (concat prompt (format "[%s] " default)))
1099 ;; The unwind-protect returns VAL, and we too.
1103 (setq val (read-from-minibuffer prompt nil nil nil
1104 'dired-shell-command-history)
1106 ;; If we got a return, then use default.
1112 ;; Undo pushing onto the history list so that an aborted
1113 ;; command doesn't get the default in the next command.
1114 (setq dired-shell-command-history old-history)
1116 (or (equal val (car-safe dired-shell-command-history))
1117 (setq dired-shell-command-history
1118 (cons val dired-shell-command-history))))))))
1122 ;;; Redefine dired-aux.el's version:
1123 (defun dired-read-shell-command (prompt arg files)
1124 ;; "Read a dired shell command prompting with PROMPT (using read-string).
1125 ;;ARG is the prefix arg and may be used to indicate in the prompt which
1126 ;; files are affected.
1127 ;;This is an extra function so that you can redefine it, e.g., to use gmhist."
1130 'dired-guess-shell-command
1131 (format prompt (dired-mark-prompt arg files)) ; PROMPT
1135 ;;;; RELATIVE SYMBOLIC LINKS.
1137 (defvar dired-keep-marker-relsymlink ?S
1138 "See variable `dired-keep-marker-move'.")
1140 (defun dired-make-relative-symlink (file1 file2 &optional ok-if-already-exists)
1141 "Three arguments: FILE1 FILE2 &optional OK-IF-ALREADY-EXISTS
1142 Make a symbolic link (pointing to FILE1) in FILE2.
1143 The link is relative (if possible), for example
1145 \"/vol/tex/bin/foo\" \"/vol/local/bin/foo\"
1149 \"../../tex/bin/foo\" \"/vol/local/bin/foo\"
1151 (interactive "FRelSymLink: \nFRelSymLink %s: \np")
1152 (let (name1 name2 len1 len2 (index 0) sub)
1153 (setq file1 (expand-file-name file1)
1154 file2 (expand-file-name file2)
1156 len2 (length file2))
1157 ;; Find common initial pathname components:
1159 (while (and (setq next (string-match "/" file1 index))
1160 (setq next (1+ next))
1161 (< next (min len1 len2))
1162 ;; For the comparison, both substrings must end in
1163 ;; `/', so NEXT is *one plus* the result of the
1165 ;; E.g., consider the case of linking "/tmp/a/abc"
1166 ;; to "/tmp/abc" erronously giving "/tmp/a" instead
1167 ;; of "/tmp/" as common initial component
1168 (string-equal (substring file1 0 next)
1169 (substring file2 0 next)))
1172 sub (substring file1 0 index)
1173 name1 (substring file1 index)))
1174 (if (string-equal sub "/")
1175 ;; No common initial pathname found
1177 ;; Else they have a common parent directory
1178 (let ((tem (substring file2 index))
1181 ;; Count number of slashes we must compensate for ...
1182 (while (setq start (string-match "/" tem start))
1183 (setq count (1+ count)
1185 ;; ... and prepend a "../" for each slash found:
1187 (setq count (1- count)
1188 name1 (concat "../" name1)))))
1190 (directory-file-name name1) ; must not link to foo/
1192 name2 ok-if-already-exists)))
1194 (defun dired-do-relsymlink (&optional arg)
1195 "Relative symlink all marked (or next ARG) files into a directory,
1196 or make a relative symbolic link to the current file.
1197 This creates relative symbolic links like
1201 not absolute ones like
1203 foo -> /ugly/path/that/may/change/any/day/bar/foo"
1205 (dired-do-create-files 'relsymlink (function dired-make-relative-symlink)
1206 "RelSymLink" arg dired-keep-marker-relsymlink))
1208 (defun dired-do-relsymlink-regexp (regexp newname &optional whole-path)
1209 "RelSymlink all marked files containing REGEXP to NEWNAME.
1210 See functions `dired-do-rename-regexp' and `dired-do-relsymlink'
1212 (interactive (dired-mark-read-regexp "RelSymLink"))
1213 (dired-do-create-files-regexp
1214 (function dired-make-relative-symlink)
1215 "RelSymLink" nil regexp newname whole-path dired-keep-marker-relsymlink))
1218 ;;;; VISIT ALL MARKED FILES SIMULTANEOUSLY.
1220 ;;; Brief Description:
1222 ;;; `dired-do-find-marked-files' is bound to `F' by dired-x.el.
1224 ;;; * Use `dired-get-marked-files' to collect the marked files in the current
1225 ;;; Dired Buffer into a list of filenames `FILE-LIST'.
1227 ;;; * Pass FILE-LIST to `dired-simultaneous-find-file' all with
1228 ;;; `dired-do-find-marked-files''s prefix argument NOSELECT.
1230 ;;; * `dired-simultaneous-find-file' runs through FILE-LIST decrementing the
1233 ;;; * If NOSELECT is non-nil then just run `find-file-noselect' on each
1234 ;;; element of FILE-LIST.
1236 ;;; * If NOSELECT is nil then calculate the `size' of the window for each file
1237 ;;; by dividing the `window-height' by length of FILE-LIST. Thus, `size' is
1238 ;;; cognizant of the window-configuration.
1240 ;;; * If `size' is too small abort, otherwise run `find-file' on each element
1241 ;;; of FILE-LIST giving each a window of height `size'.
1243 (defun dired-do-find-marked-files (&optional noselect)
1244 "Find all marked files displaying all of them simultaneously.
1245 With optional NOSELECT just find files but do not select them.
1247 The current window is split across all files marked, as evenly as possible.
1248 Remaining lines go to bottom-most window. The number of files that can be
1249 displayed this way is restricted by the height of the current window and
1250 `window-min-height'.
1252 To keep dired buffer displayed, type \\[split-window-vertically] first.
1253 To display just marked files, type \\[delete-other-windows] first."
1256 (dired-simultaneous-find-file (dired-get-marked-files) noselect))
1258 (defun dired-simultaneous-find-file (file-list noselect)
1260 ;; Visit all files in FILE-LIST and display them simultaneously. The
1261 ;; current window is split across all files in FILE-LIST, as evenly as
1262 ;; possible. Remaining lines go to the bottom-most window. The number of
1263 ;; files that can be displayed this way is restricted by the height of the
1264 ;; current window and the variable `window-min-height'. With non-nil
1265 ;; NOSELECT the files are merely found but not selected.
1267 ;; We don't make this function interactive because it is usually too clumsy
1268 ;; to specify FILE-LIST interactively unless via dired.
1273 ;; Do not select the buffer.
1274 (find-file-noselect (car file-list))
1276 ;; We will have to select the buffer. Calculate and check window size.
1277 (setq size (/ (window-height) (length file-list)))
1278 (or (<= window-min-height size)
1279 (error "Too many files to visit simultaneously. Try C-u prefix."))
1280 (find-file (car file-list)))
1283 (setq file-list (cdr file-list))
1288 ;; Do not select the buffer.
1289 (find-file-noselect (car file-list))
1291 ;; Vertically split off a window of desired size. Upper window will
1292 ;; have SIZE lines. Select lower (larger) window. We split it again.
1293 (select-window (split-window nil size))
1294 (find-file (car file-list)))
1297 (setq file-list (cdr file-list)))))
1300 ;;;; MISCELLANEOUS COMMANDS.
1302 ;;; Run man on files.
1305 "Run man on this file. Display old buffer if buffer name matches filename.
1306 Uses ../lisp/man.el of \\[manual-entry] fame."
1309 (let ((file (dired-get-filename))
1310 (manual-program "nroff -man -h"))
1311 (Man-getpage-in-background file)))
1313 ;;; Run Info on files.
1315 (defun dired-info ()
1316 "Run info on this file."
1318 (info (dired-get-filename)))
1320 ;;; Run mail on mail folders.
1322 ;;; (and (not (fboundp 'vm-visit-folder))
1323 ;;; (defun vm-visit-folder (file &optional arg)
1326 (defun dired-vm (&optional read-only)
1327 "Run VM on this file.
1328 With prefix arg, visit folder read-only (this requires at least VM 5).
1329 See also variable `dired-vm-read-only-folders'."
1331 (let ((dir (dired-current-directory))
1332 (fil (dired-get-filename)))
1333 ;; take care to supply 2nd arg only if requested - may still run VM 4!
1334 (cond (read-only (vm-visit-folder fil t))
1335 ((eq t dired-vm-read-only-folders) (vm-visit-folder fil t))
1336 ((null dired-vm-read-only-folders) (vm-visit-folder fil))
1337 (t (vm-visit-folder fil (not (file-writable-p fil)))))
1338 ;; so that pressing `v' inside VM does prompt within current directory:
1339 (set (make-local-variable 'vm-folder-directory) dir)))
1341 (defun dired-rmail ()
1342 "Run RMAIL on this file."
1344 (rmail (dired-get-filename)))
1346 (defun dired-do-run-mail ()
1347 "If `dired-bind-vm' is t, then function `dired-vm', otherwise `dired-rmail'."
1350 ;; Read mail folder using vm.
1352 ;; Read mail folder using rmail.
1356 ;;;; MISCELLANEOUS INTERNAL FUNCTIONS.
1358 (or (fboundp 'dired-old-find-buffer-nocreate)
1359 (fset 'dired-old-find-buffer-nocreate
1360 (symbol-function 'dired-find-buffer-nocreate)))
1363 ;;; Redefines dired.el's version of `dired-find-buffer-nocreate'
1364 (defun dired-find-buffer-nocreate (dirname)
1365 (if dired-find-subdir
1366 (let* ((cur-buf (current-buffer))
1368 (dired-buffers-for-dir (expand-file-name dirname))))
1369 (cur-buf-matches (and (memq cur-buf buffers)
1370 ;; wildcards must match, too:
1371 (equal dired-directory dirname))))
1372 ;; We don't want to switch to the same buffer---
1373 (setq buffers (delq cur-buf buffers));;need setq with delq
1374 (or (car (sort buffers (function dired-buffer-more-recently-used-p)))
1375 ;; ---unless it's the only possibility:
1376 (and cur-buf-matches cur-buf)))
1377 (dired-old-find-buffer-nocreate dirname)))
1379 ;; This should be a builtin
1380 (defun dired-buffer-more-recently-used-p (buffer1 buffer2)
1381 "Return t if BUFFER1 is more recently used than BUFFER2."
1382 (if (equal buffer1 buffer2)
1384 (let ((more-recent nil)
1385 (list (buffer-list)))
1387 (not (setq more-recent (equal buffer1 (car list))))
1388 (not (equal buffer2 (car list))))
1389 (setq list (cdr list)))
1392 ;;; Same thing as `dired-buffers-for-dir' of dired.el? - lrd 11/23/93
1393 ;;; (defun dired-buffers-for-dir-exact (dir)
1394 ;;; ;; Return a list of buffers that dired DIR (a directory or wildcard)
1395 ;;; ;; at top level, or as subdirectory.
1396 ;;; ;; Top level matches must match the wildcard part too, if any.
1397 ;;; ;; The list is in reverse order of buffer creation, most recent last.
1398 ;;; ;; As a side effect, killed dired buffers for DIR are removed from
1399 ;;; ;; dired-buffers.
1400 ;;; (let ((alist dired-buffers) result elt)
1402 ;;; (setq elt (car alist)
1403 ;;; alist (cdr alist))
1404 ;;; (let ((buf (cdr elt)))
1405 ;;; (if (buffer-name buf)
1406 ;;; ;; Top level must match exactly against dired-directory in
1407 ;;; ;; case one of them is a wildcard.
1408 ;;; (if (or (equal dir (save-excursion (set-buffer buf)
1409 ;;; dired-directory))
1410 ;;; (assoc dir (save-excursion (set-buffer buf)
1411 ;;; dired-subdir-alist)))
1412 ;;; (setq result (cons buf result)))
1413 ;;; ;; else buffer is killed - clean up:
1414 ;;; (setq dired-buffers (delq elt dired-buffers)))))
1418 ;;; Redefines dired.el's version of `dired-initial-position'
1419 (defun dired-initial-position (dirname)
1421 (if dired-find-subdir (dired-goto-subdir dirname)) ; new
1422 (if dired-trivial-filenames (dired-goto-next-nontrivial-file)))
1425 ;; Does anyone use this? - lrd 6/29/93.
1426 (defun dired-mark-sexp (predicate &optional unflag-p)
1427 "Mark files for which PREDICATE returns non-nil.
1428 With a prefix arg, unflag those files instead.
1430 PREDICATE is a lisp expression that can refer to the following symbols:
1432 inode [integer] the inode of the file (only for ls -i output)
1433 s [integer] the size of the file for ls -s output
1434 (ususally in blocks or, with -k, in KByte)
1435 mode [string] file permission bits, e.g. \"-rw-r--r--\"
1436 nlink [integer] number of links to file
1438 gid [string] group (If the gid is not displayed by ls,
1439 this will still be set (to the same as uid))
1440 size [integer] file size in bytes
1441 time [string] the time that ls displays, e.g. \"Feb 12 14:17\"
1442 name [string] the name of the file
1443 sym [string] if file is a symbolic link, the linked-to name, else \"\"
1449 to mark all zero length files."
1450 ;; Using sym="" instead of nil avoids the trap of
1451 ;; (string-match "foo" sym) into which a user would soon fall.
1452 ;; Give `equal' instead of `=' in the example, as this works on
1453 ;; integers and strings.
1454 (interactive "xMark if (lisp expr): \nP")
1455 (message "%s" predicate)
1456 (let ((dired-marker-char (if unflag-p ?\040 dired-marker-char))
1457 inode s mode nlink uid gid size time name sym)
1462 ;; inode s mode nlink uid gid size time name sym
1464 ;; according to current file line. Returns t for success, nil if
1465 ;; there is no file line. Upon success, all variables are set, either
1466 ;; to nil or the appropriate value, so they need not be initialized.
1467 ;; Moves point within the current line.
1468 (if (dired-move-to-filename)
1470 (mode-len 10) ; length of mode string
1471 ;; like in dired.el, but with subexpressions \1=inode, \2=s:
1472 (dired-re-inode-size "\\s *\\([0-9]*\\)\\s *\\([0-9]*\\) ?"))
1475 (if (looking-at dired-re-inode-size)
1477 (goto-char (match-end 0))
1478 (setq inode (string-to-int (buffer-substring (match-beginning 1)
1480 s (string-to-int (buffer-substring (match-beginning 2)
1484 (setq mode (buffer-substring (point) (+ mode-len (point))))
1485 (forward-char mode-len)
1486 (setq nlink (read (current-buffer)))
1487 (setq uid (buffer-substring (point) (progn (forward-word 1) (point))))
1488 (re-search-forward "\\(Jan\\|Feb\\|Mar\\|Apr\\|May\\|Jun\\|Jul\\|Aug\\|Sep\\|Oct\\|Nov\\|Dec\\)")
1489 (goto-char (match-beginning 1))
1491 (setq size (string-to-int (buffer-substring (save-excursion
1497 ;; if no gid is displayed, gid will be set to uid
1498 ;; but user will then not reference it anyway in PREDICATE.
1499 (setq gid (buffer-substring (save-excursion (forward-word 1) (point))
1501 time (buffer-substring (match-beginning 1)
1502 (1- (dired-move-to-filename)))
1503 name (buffer-substring (point)
1504 (or (dired-move-to-end-of-filename t)
1507 (if (looking-at " -> ")
1508 (buffer-substring (progn (forward-char 4) (point))
1509 (progn (end-of-line) (point)))
1514 (format "'%s file" predicate))))
1517 ;;;; FIND FILE AT POINT.
1519 (defvar dired-x-hands-off-my-keys t
1520 "*t means don't bind `dired-x-find-file' over `find-file' on keyboard.
1521 Similarly for `dired-x-find-file-other-window' over `find-file-other-window'.
1522 If you change this variable after dired-x.el is loaded then do
1523 \\[dired-x-bind-find-file].")
1525 ;;; Bind `dired-x-find-file{-other-window}' over wherever
1526 ;;; `find-file{-other-window}' is bound?
1527 (defun dired-x-bind-find-file ()
1528 "Bind `dired-x-find-file' in place of `find-file' \(or reverse\).
1529 Similarly for `dired-x-find-file-other-window' and `find-file-other-window'.
1530 Binding direction based on `dired-x-hands-off-my-keys'.
1531 This function part of `after-init-hook'."
1534 (setq dired-x-hands-off-my-keys
1535 (not (y-or-n-p "Bind dired-x-find-file over find-file? "))))
1536 (cond ((not dired-x-hands-off-my-keys)
1537 (substitute-key-definition 'find-file
1539 (current-global-map))
1540 (substitute-key-definition 'find-file-other-window
1541 'dired-x-find-file-other-window
1542 (current-global-map)))
1544 (substitute-key-definition 'dired-x-find-file
1546 (current-global-map))
1547 (substitute-key-definition 'dired-x-find-file-other-window
1548 'find-file-other-window
1549 (current-global-map))))
1550 ;; Clear mini-buffer.
1553 ;;; Now call it so binding is correct and put on `after-init-hook' in case
1554 ;;; user changes binding.
1555 (dired-x-bind-find-file)
1556 (add-hook 'after-init-hook 'dired-x-bind-find-file)
1558 (defun dired-x-find-file (filename)
1559 "Edit file FILENAME.
1560 May create a new window, or reuse an existing one.
1561 See the function `display-buffer'.
1563 Identical to `find-file' except when called interactively, with a prefix arg
1564 \(e.g., \\[universal-argument]\), in which case it guesses filename near
1565 point. Useful for editing file mentioned in buffer you are viewing, or to
1566 test if that file exists. Use minibuffer after snatching filename."
1567 (interactive (list (read-filename-at-point "Find file: ")))
1568 (find-file (expand-file-name filename)))
1570 (defun dired-x-find-file-other-window (filename)
1571 "Edit file FILENAME, in another window.
1572 May create a new window, or reuse an existing one.
1573 See the function `display-buffer'.
1575 Identical to `find-file-other-window' except when called interactively, with a
1576 prefix arg \(e.g., \\[universal-argument]\), in which case it guesses filename
1577 near point. Useful for editing file mentioned in buffer you are viewing, or
1578 to test if that file exists. Use minibuffer after snatching filename."
1579 (interactive (list (read-filename-at-point "Find file: ")))
1580 (find-file-other-window (expand-file-name filename)))
1582 ;;; Internal functions.
1583 (defun dired-filename-at-point ()
1585 ;; Get the filename closest to point, but do not change position. Has a
1586 ;; preference for looking backward when not directly on a symbol. Not
1587 ;; perfect - point must be in middle of or end of filename.
1589 (let ((filename-chars ".a-zA-Z0-9---_/:$+")
1590 (bol (save-excursion (beginning-of-line) (point)))
1591 (eol (save-excursion (end-of-line) (point)))
1595 ;; First see if just past a filename.
1597 (if (looking-at "[] \t\n[{}()]") ; whitespace or some parens
1599 (skip-chars-backward " \n\t\r({[]})")
1601 (backward-char 1)))))
1603 (if (string-match (concat "[" filename-chars "]")
1604 (char-to-string (following-char)))
1606 (skip-chars-backward filename-chars)
1607 (setq start (point))
1608 (if (string-match "[/~]" (char-to-string (preceding-char)))
1609 (setq start (1- start)))
1610 (skip-chars-forward filename-chars))
1612 (error "No file found around point!"))
1615 (expand-file-name (buffer-substring start (point))))))
1617 (defun read-filename-at-point (prompt)
1618 ;;; Returns filename prompting with PROMPT with completion. If
1619 ;;; `current-prefix-arg' is non-nil, uses name at point as guess.
1620 (if current-prefix-arg
1621 (let ((guess (dired-filename-at-point)))
1622 (read-file-name prompt
1623 (file-name-directory guess)
1625 nil (file-name-nondirectory guess)))
1626 (read-file-name prompt default-directory)))
1631 ;;; This section is provided for reports. It uses Barry A. Warsaw's
1632 ;;; reporter.el which is bundled with GNU Emacs v19.
1634 (defconst dired-x-version "2.37"
1635 "Revision number of dired-x.el -- dired extra for GNU Emacs v19.
1636 Type \\[dired-x-submit-report] to send a bug report. Available via anonymous
1639 /roebling.poly.edu:/pub/packages/dired-x.tar.gz")
1641 (defconst dired-x-help-address "dodd@roebling.poly.edu"
1642 "Address(es) accepting submission of reports on dired-x.el.")
1644 (defconst dired-x-maintainer "Larry"
1645 "First name(s) of people accepting submission of reports on dired-x.el.")
1647 (defconst dired-x-file "dired-x.el"
1648 "Name of file containing emacs lisp code.")
1650 (defconst dired-x-variable-list
1653 'dired-vm-read-only-folders
1658 'dired-enable-local-variables
1659 'dired-local-variables-file
1660 'dired-guess-shell-gnutar
1661 'dired-guess-shell-gzip-quiet
1662 'dired-guess-shell-znew-switches
1663 'dired-guess-shell-alist-user
1664 'dired-clean-up-buffers-too
1667 'dired-omit-extensions
1669 "List of variables to be appended to reports sent by `dired-x-submit-report.'")
1671 (defun dired-x-submit-report ()
1672 "Submit via reporter.el a bug report on program. Send report on `dired-x-file'
1673 version `dired-x-version,' to `dired-x-maintainer' at address `dired-x-help-address'
1674 listing variables `dired-x-variable-list' in the message."
1677 ;; In case we can't find reporter...
1680 ;; Get it if we can.
1683 (reporter-submit-bug-report
1684 dired-x-help-address ; address
1685 (concat dired-x-file " (" dired-x-version ")") ; pkgname
1686 dired-x-variable-list ; varlist
1687 nil nil ; pre-/post-hooks
1688 (concat dired-x-maintainer ","))) ; salutation
1690 ;; ...fail gracefully.
1693 (message "Sorry, reporter.el not found."))))
1696 ;; As Barry Warsaw would say: "This might be useful..."
1699 ;;; dired-x.el ends here