| blob | af700ac80a0782d94ba29d8268de9277a716726c |
1 ;;; dired.el --- directory-browsing commands
3 ;; Copyright (C) 1985, 1986, 1992, 1993, 1994, 1995, 1996, 1997, 2000,
4 ;; 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
6 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>
7 ;; Maintainer: FSF
8 ;; Keywords: files
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 3, or (at your option)
15 ;; any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 ;; Boston, MA 02110-1301, USA.
27 ;;; Commentary:
29 ;; This is a major mode for directory browsing and editing. It is
30 ;; documented in the Emacs manual.
32 ;; Rewritten in 1990/1991 to add tree features, file marking and
33 ;; sorting by Sebastian Kremer <sk@thp.uni-koeln.de>.
34 ;; Finished up by rms in 1992.
36 ;;; Code:
38 ;;; Customizable variables
41 "Directory editing."
46 "Handling marks in Dired."
51 ;;;###autoload
53 "*Switches passed to `ls' for Dired. MUST contain the `l' option.
54 May contain all other options that don't contradict `-l';
55 may contain even `F', `b', `i' and `s'. See also the variable
56 `dired-ls-F-marks-symlinks' concerning the `F' switch.
57 On systems such as MS-DOS and MS-Windows, which use `ls' emulation in Lisp,
58 some of the `ls' switches are not supported; see the doc string of
59 `insert-directory' in `ls-lisp.el' for more details."
64 "If non-nil, switches passed to `ls' for inserting subdirectories.
67 ; Don't use absolute file names as /bin should be in any PATH and people
68 ; may prefer /usr/local/gnu/bin or whatever. However, chown is
69 ; usually not in PATH.
71 ;;;###autoload
74 "chown"
76 "/usr/sbin/chown"
89 ;;;###autoload
91 "*Informs Dired about how `ls -lF' marks symbolic links.
92 Set this to t if `ls' (or whatever program is specified by
93 `insert-directory-program') with `-lF' marks the symbolic link
94 itself with a trailing @ (usually the case under Ultrix).
96 Example: if `ln -s foo bar; ls -F bar' gives `bar -> foo', set it to
97 nil (the default), if it gives `bar@ -> foo', set it to t.
99 Dired checks if there is really a @ appended. Thus, if you have a
100 marking `ls' program on one host and a non-marking on another host, and
101 don't care about symbolic links which really end in a @, you can
102 always set this variable to t."
106 ;;;###autoload
108 "*Regexp of files to skip when finding first file of a directory.
109 A value of nil means move to the subdir line.
110 A value of t means move to first file."
113 regexp)
116 ;;;###autoload
118 ;; Use t as default so that moved files "take their markers with them".
119 "*Controls marking of renamed files.
120 If t, files keep their previous marks when they are renamed.
121 If a character, renamed files (whether previously marked or not)
122 are afterward marked with that character."
127 ;;;###autoload
129 "*Controls marking of copied files.
130 If t, copied files are marked if and as the corresponding original files were.
131 If a character, copied files are unconditionally marked with that character."
136 ;;;###autoload
138 "*Controls marking of newly made hard links.
139 If t, they are marked if and as the files linked to were marked.
140 If a character, new links are unconditionally marked with that character."
145 ;;;###autoload
147 "*Controls marking of newly made symbolic links.
148 If t, they are marked if and as the files linked to were marked.
149 If a character, new links are unconditionally marked with that character."
154 ;;;###autoload
156 "*If non-nil, Dired tries to guess a default target directory.
157 This means: if there is a dired buffer displayed in the next window,
158 use its current subdir, instead of the current subdir of this dired buffer.
160 The target is used in the prompt for file copy, rename etc."
164 ;;;###autoload
166 "*If non-nil, Dired preserves the last-modified time in a file copy.
167 \(This works on only some systems.)"
171 ; These variables were deleted and the replacements are on files.el.
172 ; We leave aliases behind for back-compatibility.
176 ;;; Hook variables
179 "Run after loading Dired.
180 You can customize key bindings or load extensions with this."
185 "Run at the very end of `dired-mode'."
190 "This hook is run before a dired buffer is read in (created or reverted)."
195 "Hook run after each time a file or directory is read by Dired.
196 After each listing of a file or directory, this hook is run
197 with the buffer narrowed to the listing."
200 ;; Note this can't simply be run inside function `dired-ls' as the hook
201 ;; functions probably depend on the dired-subdir-alist to be OK.
207 "The functions to call when a drop in `dired-mode' is made.
208 See `dnd-protocol-alist' for more information. When nil, behave
209 as in other buffers. Changing this option is effective only for
210 new dired buffers."
216 ;; Internal variables
219 ;; so that you can write things like
220 ;; (let ((dired-marker-char ?X))
221 ;; ;; great code using X markers ...
222 ;; )
223 ;; For example, commands operating on two sets of files, A and B.
224 ;; Or marking files with digits 0-9. This could implicate
225 ;; concentric sets or an order for the marked files.
226 ;; The code depends on dynamic scoping on the marker char.
227 "In Dired, the current mark character.
234 ;; I see no reason ever to make this nil -- rms.
235 ;; (> baud-rate search-slow-speed)
242 ;;;###autoload
244 "The directory name or wildcard spec that this dired directory lists.
245 Local to each dired buffer. May be a list, in which case the car is the
246 directory name and the cdr is the list of files to mention.
255 ;; These regexps must be tested at beginning-of-line, but are also
256 ;; used to search for next matches, so neither omitting "^" nor
257 ;; replacing "^" by "\n" (to make it slightly faster) will work.
260 ;; "Regexp matching a marked line.
261 ;; Important: the match ends just after the marker."
263 ;; The [^:] part after "d" and "l" is to avoid confusion with the
264 ;; DOS/Windows-style drive letters in directory names, like in "d:/foo".
272 "-[-r][-w].[-r][-w][xs][-r][-w]."
278 ;; The subdirectory names in the next two lists are expanded.
280 "Association list of subdirectories and their buffer positions.
281 Each subdirectory has an element: (DIRNAME . STARTMARKER).
282 The order of elements is the reverse of the order in the buffer.
286 "Keeps track of which switches to use for inserted subdirectories.
294 "Regexp matching a maybe hidden subdirectory line in `ls -lR' output.
295 Subexpression 1 is the subdirectory proper, no trailing colon.
296 The match starts at the beginning of the line and ends after the end
301 "Faces used by Dired."
307 "Face used for directory headers."
315 "Face used for dired marks."
323 "Face used for marked files."
331 "Face used for flagged files."
338 ;; Inherit from font-lock-warning-face since with min-colors 8
339 ;; font-lock-comment-face is not colored any more.
341 "Face used to highlight a part of a buffer that needs user attention."
350 "Face used to highlight permissions of group- and world-writable files."
358 "Face used for subdirectories."
366 "Face used for symbolic links."
374 "Face used for files suffixed with `completion-ignored-extensions'."
382 ;;
383 ;; Directory headers.
385 ;;
386 ;; Dired marks.
388 ;;
389 ;; We make heavy use of MATCH-ANCHORED, since the regexps don't identify the
390 ;; file name itself. We search for Dired defined regexps, and then use the
391 ;; Dired defined function `dired-move-to-filename' before searching for the
392 ;; simple regexp ".+". It is that regexp which matches the file name.
393 ;;
394 ;; Marked files.
397 ;;
398 ;; Flagged files.
401 ;; People who are paranoid about security would consider this more
402 ;; important than other things such as whether it is a directory.
403 ;; But we don't want to encourage paranoia, so our default
404 ;; should be what's most useful for non-paranoids. -- rms.
405 ;;; ;;
406 ;;; ;; Files that are group or world writable.
407 ;;; (list (concat dired-re-maybe-mark dired-re-inode-size
408 ;;; "\\([-d]\\(....w....\\|.......w.\\)\\)")
409 ;;; '(1 dired-warning-face)
410 ;;; '(".+" (dired-move-to-filename) nil (0 dired-warning-face)))
411 ;; However, we don't need to highlight the file name, only the
412 ;; permissions, to win generally. -- fx.
413 ;; Fixme: we could also put text properties on the permission
414 ;; fields with keymaps to frob the permissions, somewhat a la XEmacs.
421 ;;
422 ;; Subdirectories.
425 ;;
426 ;; Symbolic links.
429 ;;
430 ;; Files suffixed with `completion-ignored-extensions'.
432 ;; It is quicker to first find just an extension, then go back to the
433 ;; start of that file name. So we do this complex MATCH-ANCHORED form.
436 ;;
437 ;; Files suffixed with `completion-ignored-extensions'
438 ;; plus a character put in by -F.
444 ;; If the last character is not part of the filename,
445 ;; move back to the start of the filename
446 ;; so it can be fontified.
447 ;; Otherwise, leave point at the end of the line;
448 ;; that way, nothing is fontified.
452 )
456 \f
457 ;;; Macros must be defined before they are used, for the byte compiler.
460 "Mark all files for which PREDICATE evals to non-nil.
461 PREDICATE is evaluated on each line, with point at beginning of line.
462 MSG is a noun phrase for the type of files being marked.
463 It should end with a noun that can be pluralized by adding `s'.
464 Return value is the number of files marked, or nil if none were marked."
478 count
479 ,msg
487 distinguish-one-marked)
488 "Eval BODY with point on each marked line. Return a list of BODY's results.
489 If no marked file could be found, execute BODY on the current line.
490 If ARG is an integer, use the next ARG (or previous -ARG, if ARG<0)
491 files instead of the marked files.
492 In that case point is dragged along. This is so that commands on
493 the next ARG (instead of the marked) files can be chained easily.
494 If ARG is otherwise non-nil, use current file instead.
495 If optional third arg SHOW-PROGRESS evaluates to non-nil,
496 redisplay the dired buffer after each file is processed.
497 No guarantee is made about the position on the marked line.
498 BODY must ensure this itself if it depends on this.
499 Search starts at the beginning of the buffer, thus the car of the list
500 corresponds to the line nearest to the buffer's bottom. This
501 is also true for (positive and negative) integer values of ARG.
502 BODY should not be too long as it is expanded four times.
504 If DISTINGUISH-ONE-MARKED is non-nil, then if we find just one marked file,
505 return (t FILENAME) instead of (FILENAME)."
506 ;;
507 ;;Warning: BODY must not add new lines before point - this may cause an
508 ;;endless loop.
509 ;;This warning should not apply any longer, sk 2-Sep-1991 14:10.
516 ,arg
522 results))
523 ;; non-nil, non-integer ARG means use current file:
528 ;; remember position of next marked file before BODY
529 ;; can insert lines before the just found file,
530 ;; confusing us by finding the same marked file again
531 ;; and again and...
539 ;; move after last match
548 results
550 ;; save-excursion loses, again
554 "Return the marked files' names as list of strings.
555 The list is in the same order as the buffer, that is, the car is the
556 first marked file.
557 Values returned are normally absolute file names.
558 Optional arg LOCALP as in `dired-get-filename'.
559 Optional second argument ARG specifies files near point
560 instead of marked files. If ARG is an integer, use the next ARG files.
561 If ARG is otherwise non-nil, use file. Usually ARG comes from
562 the command's prefix arg.
563 Optional third argument FILTER, if non-nil, is a function to select
564 some of the files--those for which (funcall FILTER FILENAME) is non-nil.
566 If DISTINGUISH-ONE-MARKED is non-nil, then if we find just one marked file,
567 return (t FILENAME) instead of (FILENAME).
568 Don't use that together with FILTER."
573 arg nil distinguish-one-marked)))
574 result)
577 all-of-them
582 result)))
583 \f
584 ;; The dired command
587 ;; For use in interactive.
591 dired-listing-switches))
592 ;; If a dialog is about to be used, call read-directory-name so
593 ;; the dialog code knows we want directories. Some dialogs can
594 ;; only select directories or files when popped up, not both.
597 nil default-directory nil)
599 nil default-directory nil)))))
601 ;;;###autoload (define-key ctl-x-map "d" 'dired)
602 ;;;###autoload
605 Optional second argument SWITCHES specifies the `ls' options used.
606 \(Interactively, use a prefix argument to be able to specify SWITCHES.)
607 Dired displays a list of files in DIRNAME (which may also have
608 shell wildcards appended to select certain files). If DIRNAME is a cons,
609 its first element is taken as the directory name and the rest as an explicit
610 list of files to make directory entries for.
612 You can move around in it with the usual commands.
617 If DIRNAME is already in a dired buffer, that buffer is used without refresh."
618 ;; Cannot use (interactive "D") because of wildcards.
622 ;;;###autoload (define-key ctl-x-4-map "d" 'dired-other-window)
623 ;;;###autoload
629 ;;;###autoload (define-key ctl-x-5-map "d" 'dired-other-frame)
630 ;;;###autoload
636 ;;;###autoload
638 "Like `dired' but returns the dired buffer as value, does not select it."
640 ;; This loses the distinction between "/foo/*/" and "/foo/*" that
641 ;; some shells make:
652 ;; If the argument was syntactically a directory name not a file name,
653 ;; or if it happens to name a file that is a directory,
654 ;; convert it syntactically to a directory name.
655 ;; The reason for checking initially-was-dirname
656 ;; and not just file-directory-p
657 ;; is that file-directory-p is slow over ftp.
665 ;; The following is an internal dired function. It returns non-nil if
666 ;; the directory visited by the current dired buffer has changed on
667 ;; disk. DIRNAME should be the directory name of that directory.
676 "Return non-nil if current dired buffer needs updating.
677 If NOCONFIRM is non-nil, then this function always returns nil
678 for a remote directory. This feature is used by Auto Revert Mode."
686 ;; Separate function from dired-noselect for the sake of dired-vms.el.
688 ;; If there is an existing dired buffer for DIRNAME, just leave
689 ;; buffer as it is (don't even call dired-revert).
690 ;; This saves time especially for deep trees or with ange-ftp.
691 ;; The user can type `g' easily, and it is more consistent with find-file.
692 ;; But if SWITCHES are given they are probably different from the
693 ;; buffer's old value, so call dired-sort-other, which does
694 ;; revert the buffer.
695 ;; A pity we can't possibly do "Directory has changed - refresh? "
696 ;; like find-file does.
697 ;; Optional argument MODE is passed to dired-find-buffer-nocreate,
698 ;; see there.
700 buffer
701 ;; note that buffer already is in dired-mode, if found
702 new-buffer-p
707 ;; Look for an existing buffer.
712 ;; We don't want default-major-mode to run hooks and set auto-fill
713 ;; or whatever, now that dired-mode does not
714 ;; kill-all-local-variables any longer.
719 ;; file list may have changed
721 ;; this calls dired-revert
723 ;; If directory has changed on disk, offer to revert.
728 ;; Else a new buffer
730 ;; We can do this unconditionally
731 ;; because dired-noselect ensures that the name
732 ;; is passed in directory name syntax
733 ;; if it was the name of a directory at all.
738 ;; default-directory and dired-actual-switches are set now
739 ;; (buffer-local), so we can call dired-readin:
744 ;; dired-readin can fail if parent directories are inaccessible.
745 ;; Don't leave an empty buffer around in that case.
750 buffer))
753 ;; Enlarged by dired-advertise
754 ;; Queried by function dired-buffers-for-dir. When this detects a
755 ;; killed buffer, it is removed from this list.
759 ;; This differs from dired-buffers-for-dir in that it does not consider
760 ;; subdirs of default-directory and searches for the first match only.
761 ;; Also, the major mode must be MODE.
771 dired-directory ;; nil during find-alternate-file
776 dired-directory))))
778 blist nil)
780 found))
782 \f
783 ;; Read in a new dired buffer
786 "Read in a new dired buffer.
787 Differs from `dired-insert-subdir' in that it accepts
788 wildcards, erases the buffer, and builds the subdir-alist anew
789 \(including making it buffer-local and clearing it first)."
791 ;; default-directory and dired-actual-switches must be buffer-local
792 ;; and initialized by now.
799 ;; This hook which may want to modify dired-actual-switches
800 ;; based on dired-directory, e.g. with ange-ftp to a SysV host
801 ;; where ls won't understand -Al switches.
809 ;; Don't make undo entries for readin.
815 ;; Must first make alist buffer local and set it to nil because
816 ;; dired-build-subdir-alist will call dired-clear-alist first
823 ;; No need to narrow since the whole buffer contains just
824 ;; dired-readin's output, nothing else. The hook can
825 ;; successfully use dired functions (e.g. dired-get-filename)
826 ;; as the subdir-alist has been built in dired-readin.
829 ;; Subroutines of dired-readin
832 ;; Insert listing for the specified dir (and maybe file list)
833 ;; already in dired-directory, assuming a clean buffer.
839 file-list nil))
843 ;; If we are reading a whole single directory...
848 ;; Else treat it as a wildcard spec
849 ;; unless we have an explicit list of files.
854 "Align the fields of a file to the ones of surrounding lines.
855 BEG..END is the line where the file info is located."
856 ;; Some versions of ls try to adjust the size of each field so as to just
857 ;; hold the largest element ("largest" in the current invocation, of
858 ;; course). So when a single line is output, the size of each field is
859 ;; just big enough for that one output. Thus when dired refreshes one
860 ;; line, the alignment if this line w.r.t the rest is messed up because
861 ;; the fields of that one line will generally be smaller.
862 ;;
863 ;; To work around this problem, we here add spaces to try and
864 ;; re-align the fields as needed. Since this is purely aesthetic,
865 ;; it is of utmost importance that it doesn't mess up anything like
866 ;; `dired-move-to-filename'. To this end, we limit ourselves to
867 ;; adding spaces only, and to only add them at places where there
868 ;; was already at least one space. This way, as long as
869 ;; `directory-listing-before-filename-regexp' always matches spaces
870 ;; with "*" or "+", we know we haven't made anything worse. There
871 ;; is one spot where the exact number of spaces is important, which
872 ;; is just before the actual filename, so we refrain from adding
873 ;; spaces there (and within the filename as well, of course).
876 ;; Check the there is indeed a file, and that there is anoter adjacent
877 ;; file with which to align, and that additional spaces are needed to
878 ;; align the filenames.
891 ;; Make sure there is some work left to do.
893 ;; If we've only looked at the line above, check to see if the line
894 ;; below exists as well and if so, align with the shorter one.
903 ;; Keep positions uptodate when we insert stuff.
906 ;; Main loop.
910 ;; Don't touch anything just before (and after) the
911 ;; beginning of the filename.
913 ;; We're now just in front of a field, with a space behind us.
915 ;; Nums are right-aligned.
917 ;; Let's look at the other line, in the same column: we
918 ;; should be either near the end of the previous field, or
919 ;; in the space between that field and the next.
920 ;; [ Of course, it's also possible that we're already within
921 ;; the next field or even past it, but that's unlikely since
922 ;; other-col > file-col. ]
923 ;; Let's find the distance to the alignment-point (either
924 ;; the beginning or the end of the next field, depending on
925 ;; whether this field is left or right aligned).
935 ;; Now, the number of spaces to insert is align-pt-offset
936 ;; minus the distance to the equivalent point on the
937 ;; current line.
940 align-pt-offset
950 ;; Let's just make really sure we did not mess up.
953 ;; Damn! We messed up: let's revert the change.
955 ;; Now skip to next field.
961 "Insert a directory listing of DIR, Dired style.
962 Use SWITCHES to make the listings.
963 If FILE-LIST is non-nil, list only those files.
964 Otherwise, if WILDCARD is non-nil, expand wildcards;
965 in that case, DIR should be a file name that uses wildcards.
966 In other cases, DIR should be a directory name or a directory filename.
967 If HDR is non-nil, insert a header line with the directory name."
970 end)
973 ;; We used to specify the C locale here, to force English month names;
974 ;; but this should not be necessary any more,
975 ;; with the new value of `directory-listing-before-filename-regexp'.
980 ;; Re-align fields, if necessary.
983 ;; Quote certain characters, unless ls quoted them for us.
992 nil t))
998 nil t))
1001 ;; If we used --dired and it worked, the lines are already indented.
1002 ;; Otherwise, indent them.
1008 ;; Insert text at the beginning to standardize things.
1012 ;; Note that dired-build-subdir-alist will replace the name
1013 ;; by its expansion, so it does not matter whether what we insert
1014 ;; here is fully expanded, but it should be absolute.
1017 ;; Insert "wildcard" line where "total" line would be for a full dir.
1021 "Make the file names highlight when the mouse is on them."
1036 \f
1037 ;; Reverting a dired buffer
1040 "Reread the dired buffer.
1041 Must also be called after `dired-actual-switches' have changed.
1042 Should not fail even on completely garbaged buffers.
1043 Preserves old cursor, marks/flags, hidden-p."
1052 buffer-read-only)
1056 ;; treat top level dir extra (it may contain wildcards)
1059 ;; Run dired-after-readin-hook just once, below.
1064 ;; ... run the hook for the whole buffer, and only after markers
1065 ;; have been reinserted (else omitting in dired-x would omit marked files)
1075 ;; outside of the let scope
1076 ;;; Might as well not override the user if the user changed this.
1077 ;;; (setq buffer-read-only t)
1078 )
1080 ;; Subroutines of dired-revert
1081 ;; Some of these are also used when inserting subdirs.
1084 "Return alist of files and their marks, from BEG to END."
1095 alist))
1098 "Mark all files remembered in ALIST.
1099 Each element of ALIST looks like (FILE . MARKERCHAR)."
1113 "Return a list of names of subdirs currently hidden."
1123 result))
1126 "Try to insert all subdirs that were displayed before.
1127 Do so according to the former subdir alist OLD-SUBDIR-ALIST."
1141 "Remove directory DIR from any directory cache."
1145 \f
1146 ;; dired mode key bindings and initialization
1149 ;; This looks ugly when substitute-command-keys uses C-d instead d:
1150 ;; (define-key dired-mode-map "\C-d" 'dired-flag-file-deletion)
1155 ;; Commands to mark or flag certain categories of files
1160 ;; Upper case keys (except !) for operating on the marked files
1178 ;; Comparison commands
1181 ;; Tree Dired commands
1187 ;; move to marked files
1190 ;; Make all regexp commands share a `%' prefix:
1191 ;; We used to get to the submap via a symbol dired-regexp-prefix,
1192 ;; but that seems to serve little purpose, and copy-keymap
1193 ;; does a better job without it.
1205 ;; Commands for marking and unmarking.
1222 ;; Lower keys for commands not operating on all the marked files
1248 ;; moving
1256 (define-key map [up] 'dired-previous-line)
1257 ;; hiding
1258 (define-key map "$" 'dired-hide-subdir)
1259 (define-key map "\M-$" 'dired-hide-all)
1260 ;; misc
1261 (define-key map "?" 'dired-summary)
1263 (define-key map [remap undo] 'dired-undo)
1264 (define-key map [remap advertised-undo] 'dired-undo)
1265 ;; thumbnail manipulation (image-dired)
1266 (define-key map "\C-td" 'image-dired-display-thumbs)
1267 (define-key map "\C-tt" 'image-dired-tag-files)
1268 (define-key map "\C-tr" 'image-dired-delete-tag)
1269 (define-key map "\C-tj" 'image-dired-jump-thumbnail-buffer)
1270 (define-key map "\C-ti" 'image-dired-dired-display-image)
1271 (define-key map "\C-tx" 'image-dired-dired-display-external)
1272 (define-key map "\C-ta" 'image-dired-display-thumbs-append)
1273 (define-key map "\C-t." 'image-dired-display-thumb)
1274 (define-key map "\C-tc" 'image-dired-dired-comment-files)
1275 (define-key map "\C-tf" 'image-dired-mark-tagged-files)
1276 (define-key map "\C-t\C-t" 'image-dired-dired-insert-marked-thumbs)
1277 (define-key map "\C-te" 'image-dired-dired-edit-comment-and-tags)
1279 ;; Make menu bar items.
1281 ;; No need to fo this, now that top-level items are fewer.
1282 ;;;;
1283 ;; Get rid of the Edit menu bar item to save space.
1284 ;(define-key map [menu-bar edit] 'undefined)
1286 (define-key map [menu-bar subdir]
1287 (cons "Subdir" (make-sparse-keymap "Subdir")))
1289 (define-key map [menu-bar subdir hide-all]
1290 '(menu-item "Hide All" dired-hide-all
1291 :help "Hide all subdirectories, leave only header lines"))
1292 (define-key map [menu-bar subdir hide-subdir]
1293 '(menu-item "Hide/UnHide Subdir" dired-hide-subdir
1294 :help "Hide or unhide current directory listing"))
1295 (define-key map [menu-bar subdir tree-down]
1296 '(menu-item "Tree Down" dired-tree-down
1297 :help "Go to first subdirectory header down the tree"))
1298 (define-key map [menu-bar subdir tree-up]
1299 '(menu-item "Tree Up" dired-tree-up
1300 :help "Go to first subdirectory header up the tree"))
1301 (define-key map [menu-bar subdir up]
1302 '(menu-item "Up Directory" dired-up-directory
1303 :help "Edit the parent directory"))
1304 (define-key map [menu-bar subdir prev-subdir]
1305 '(menu-item "Prev Subdir" dired-prev-subdir
1306 :help "Go to previous subdirectory header line"))
1307 (define-key map [menu-bar subdir next-subdir]
1308 '(menu-item "Next Subdir" dired-next-subdir
1309 :help "Go to next subdirectory header line"))
1310 (define-key map [menu-bar subdir prev-dirline]
1311 '(menu-item "Prev Dirline" dired-prev-dirline
1312 :help "Move to next directory-file line"))
1313 (define-key map [menu-bar subdir next-dirline]
1314 '(menu-item "Next Dirline" dired-next-dirline
1315 :help "Move to previous directory-file line"))
1316 (define-key map [menu-bar subdir insert]
1317 '(menu-item "Insert This Subdir" dired-maybe-insert-subdir
1318 :help "Insert contents of subdirectory"))
1320 (define-key map [menu-bar immediate]
1321 (cons "Immediate" (make-sparse-keymap "Immediate")))
1323 (define-key map
1324 [menu-bar immediate image-dired-dired-display-external]
1325 '(menu-item "Display Image Externally" image-dired-dired-display-external
1326 :help "Display image in external viewer"))
1327 (define-key map
1328 [menu-bar immediate image-dired-dired-display-image]
1329 '(menu-item "Display Image" image-dired-dired-display-image
1330 :help "Display sized image in a separate window"))
1332 (define-key map [menu-bar immediate dashes-4]
1333 '("--"))
1335 (define-key map [menu-bar immediate revert-buffer]
1336 '(menu-item "Refresh" revert-buffer
1337 :help "Update contents of shown directories"))
1339 (define-key map [menu-bar immediate dashes]
1340 '("--"))
1342 (define-key map [menu-bar immediate compare-directories]
1343 '(menu-item "Compare Directories..." dired-compare-directories
1344 :help "Mark files with different attributes in two dired buffers"))
1345 (define-key map [menu-bar immediate backup-diff]
1346 '(menu-item "Compare with Backup" dired-backup-diff
1347 :help "Diff file at cursor with its latest backup"))
1348 (define-key map [menu-bar immediate diff]
1349 '(menu-item "Diff..." dired-diff
1350 :help "Compare file at cursor with another file"))
1351 (define-key map [menu-bar immediate view]
1352 '(menu-item "View This File" dired-view-file
1353 :help "Examine file at cursor in read-only mode"))
1354 (define-key map [menu-bar immediate display]
1355 '(menu-item "Display in Other Window" dired-display-file
1356 :help "Display file at cursor in other window"))
1357 (define-key map [menu-bar immediate find-file-other-window]
1358 '(menu-item "Find in Other Window" dired-find-file-other-window
1359 :help "Edit file at cursor in other window"))
1360 (define-key map [menu-bar immediate find-file]
1361 '(menu-item "Find This File" dired-find-file
1362 :help "Edit file at cursor"))
1363 (define-key map [menu-bar immediate create-directory]
1364 '(menu-item "Create Directory..." dired-create-directory))
1365 (define-key map [menu-bar immediate wdired-mode]
1366 '(menu-item "Edit File Names" wdired-change-to-wdired-mode))
1368 (define-key map [menu-bar regexp]
1369 (cons "Regexp" (make-sparse-keymap "Regexp")))
1371 (define-key map
1372 [menu-bar regexp image-dired-mark-tagged-files]
1373 '(menu-item "Mark From Image Tag..." image-dired-mark-tagged-files
1374 :help "Mark files whose image tags matches regexp"))
1376 (define-key map [menu-bar regexp dashes-1]
1377 '("--"))
1379 (define-key map [menu-bar regexp downcase]
1380 '(menu-item "Downcase" dired-downcase
1381 ;; When running on plain MS-DOS, there's only one
1382 ;; letter-case for file names.
1383 :enable (or (not (fboundp 'msdos-long-file-names))
1384 (msdos-long-file-names))
1385 :help "Rename marked files to lower-case name"))
1386 (define-key map [menu-bar regexp upcase]
1387 '(menu-item "Upcase" dired-upcase
1388 :enable (or (not (fboundp 'msdos-long-file-names))
1389 (msdos-long-file-names))
1390 :help "Rename marked files to upper-case name"))
1391 (define-key map [menu-bar regexp hardlink]
1392 '(menu-item "Hardlink..." dired-do-hardlink-regexp
1393 :help "Make hard links for files matching regexp"))
1394 (define-key map [menu-bar regexp symlink]
1395 '(menu-item "Symlink..." dired-do-symlink-regexp
1396 :visible (fboundp 'make-symbolic-link)
1397 :help "Make symbolic links for files matching regexp"))
1398 (define-key map [menu-bar regexp rename]
1399 '(menu-item "Rename..." dired-do-rename-regexp
1400 :help "Rename marked files matching regexp"))
1401 (define-key map [menu-bar regexp copy]
1402 '(menu-item "Copy..." dired-do-copy-regexp
1403 :help "Copy marked files matching regexp"))
1404 (define-key map [menu-bar regexp flag]
1405 '(menu-item "Flag..." dired-flag-files-regexp
1406 :help "Flag files matching regexp for deletion"))
1407 (define-key map [menu-bar regexp mark]
1408 '(menu-item "Mark..." dired-mark-files-regexp
1409 :help "Mark files matching regexp for future operations"))
1410 (define-key map [menu-bar regexp mark-cont]
1411 '(menu-item "Mark Containing..." dired-mark-files-containing-regexp
1412 :help "Mark files whose contents matches regexp"))
1414 (define-key map [menu-bar mark]
1415 (cons "Mark" (make-sparse-keymap "Mark")))
1417 (define-key map [menu-bar mark prev]
1418 '(menu-item "Previous Marked" dired-prev-marked-file
1419 :help "Move to previous marked file"))
1420 (define-key map [menu-bar mark next]
1421 '(menu-item "Next Marked" dired-next-marked-file
1422 :help "Move to next marked file"))
1423 (define-key map [menu-bar mark marks]
1424 '(menu-item "Change Marks..." dired-change-marks
1425 :help "Replace marker with another character"))
1426 (define-key map [menu-bar mark unmark-all]
1427 '(menu-item "Unmark All" dired-unmark-all-marks))
1428 (define-key map [menu-bar mark symlinks]
1429 '(menu-item "Mark Symlinks" dired-mark-symlinks
1430 :visible (fboundp 'make-symbolic-link)
1431 :help "Mark all symbolic links"))
1432 (define-key map [menu-bar mark directories]
1433 '(menu-item "Mark Directories" dired-mark-directories
1434 :help "Mark all directories except `.' and `..'"))
1435 (define-key map [menu-bar mark directory]
1436 '(menu-item "Mark Old Backups" dired-clean-directory
1437 :help "Flag old numbered backups for deletion"))
1438 (define-key map [menu-bar mark executables]
1439 '(menu-item "Mark Executables" dired-mark-executables
1440 :help "Mark all executable files"))
1441 (define-key map [menu-bar mark garbage-files]
1442 '(menu-item "Flag Garbage Files" dired-flag-garbage-files
1443 :help "Flag unneeded files for deletion"))
1444 (define-key map [menu-bar mark backup-files]
1445 '(menu-item "Flag Backup Files" dired-flag-backup-files
1446 :help "Flag all backup files for deletion"))
1447 (define-key map [menu-bar mark auto-save-files]
1448 '(menu-item "Flag Auto-save Files" dired-flag-auto-save-files
1449 :help "Flag auto-save files for deletion"))
1450 (define-key map [menu-bar mark deletion]
1451 '(menu-item "Flag" dired-flag-file-deletion
1452 :help "Flag current line's file for deletion"))
1453 (define-key map [menu-bar mark unmark]
1454 '(menu-item "Unmark" dired-unmark
1455 :help "Unmark or unflag current line's file"))
1456 (define-key map [menu-bar mark mark]
1457 '(menu-item "Mark" dired-mark
1458 :help "Mark current line's file for future operations"))
1459 (define-key map [menu-bar mark toggle-marks]
1460 '(menu-item "Toggle Marks" dired-toggle-marks
1461 :help "Mark unmarked files, unmark marked ones"))
1463 (define-key map [menu-bar operate]
1464 (cons "Operate" (make-sparse-keymap "Operate")))
1465 (define-key map
1466 [menu-bar operate image-dired-delete-tag]
1467 '(menu-item "Delete Image Tag..." image-dired-delete-tag
1468 :help "Delete image tag from current or marked files"))
1469 (define-key map
1470 [menu-bar operate image-dired-tag-files]
1471 '(menu-item "Add Image Tags..." image-dired-tag-files
1472 :help "Add image tags to current or marked files"))
1473 (define-key map
1474 [menu-bar operate image-dired-dired-comment-files]
1475 '(menu-item "Add Image Comment..." image-dired-dired-comment-files
1476 :help "Add image comment to current or marked files"))
1477 (define-key map
1478 [menu-bar operate image-dired-display-thumbs]
1479 '(menu-item "Display Image-Dired" image-dired-display-thumbs
1480 :help "Display image-dired for current or marked image files"))
1482 (define-key map [menu-bar operate dashes-3]
1483 '("--"))
1485 (define-key map [menu-bar operate query-replace]
1486 '(menu-item "Query Replace in Files..." dired-do-query-replace-regexp
1487 :help "Replace regexp in marked files"))
1488 (define-key map [menu-bar operate search]
1489 '(menu-item "Search Files..." dired-do-search
1490 :help "Search marked files for regexp"))
1491 (define-key map [menu-bar operate chown]
1492 '(menu-item "Change Owner..." dired-do-chown
1493 :visible (not (memq system-type '(ms-dos windows-nt)))
1494 :help "Change the owner of marked files"))
1495 (define-key map [menu-bar operate chgrp]
1496 '(menu-item "Change Group..." dired-do-chgrp
1497 :visible (not (memq system-type '(ms-dos windows-nt)))
1498 :help "Change the group of marked files"))
1499 (define-key map [menu-bar operate chmod]
1500 '(menu-item "Change Mode..." dired-do-chmod
1501 :help "Change mode (attributes) of marked files"))
1502 (define-key map [menu-bar operate touch]
1503 '(menu-item "Change Timestamp..." dired-do-touch
1504 :help "Change timestamp of marked files"))
1505 (define-key map [menu-bar operate load]
1506 '(menu-item "Load" dired-do-load
1507 :help "Load marked Emacs Lisp files"))
1508 (define-key map [menu-bar operate compile]
1509 '(menu-item "Byte-compile" dired-do-byte-compile
1510 :help "Byte-compile marked Emacs Lisp files"))
1511 (define-key map [menu-bar operate compress]
1512 '(menu-item "Compress" dired-do-compress
1513 :help "Compress/uncompress marked files"))
1514 (define-key map [menu-bar operate print]
1515 '(menu-item "Print..." dired-do-print
1516 :help "Ask for print command and print marked files"))
1517 (define-key map [menu-bar operate hardlink]
1518 '(menu-item "Hardlink to..." dired-do-hardlink
1519 :help "Make hard links for current or marked files"))
1520 (define-key map [menu-bar operate symlink]
1521 '(menu-item "Symlink to..." dired-do-symlink
1522 :visible (fboundp 'make-symbolic-link)
1523 :help "Make symbolic links for current or marked files"))
1524 (define-key map [menu-bar operate command]
1525 '(menu-item "Shell Command..." dired-do-shell-command
1526 :help "Run a shell command on each of marked files"))
1527 (define-key map [menu-bar operate delete]
1528 '(menu-item "Delete" dired-do-delete
1529 :help "Delete current file or all marked files"))
1530 (define-key map [menu-bar operate rename]
1531 '(menu-item "Rename to..." dired-do-rename
1532 :help "Rename current file or move marked files"))
1533 (define-key map [menu-bar operate copy]
1534 '(menu-item "Copy to..." dired-do-copy
1535 :help "Copy current file or all marked files"))
1537 map)
1538 "Local keymap for `dired-mode' buffers.")
1539 \f
1540 ;; Dired mode is suitable only for specially formatted data.
1541 (put 'dired-mode 'mode-class 'special)
1543 ;; Autoload cookie needed by desktop.el
1544 ;;;###autoload
1545 (defun dired-mode (&optional dirname switches)
1546 "\
1549 \(optionally) its subdirectories, in the format of `ls -lR'.
1552 compress, load or byte-compile them, change their file attributes
1555 by file or all files matching certain criteria.
1557 Letters no longer insert themselves. Digits are prefix arguments.
1560 Most commands operate on the marked files and use the current file
1561 if no files are marked. Use a numeric prefix argument to operate on
1562 the next ARG (or previous -ARG if ARG<0) files, or just `1'
1563 to operate on the current file only. Prefix arguments override marks.
1565 to see why something went wrong.
1570 (or dired it in another buffer, if it is a directory).
1577 This retains all marks and hides subdirs again that were hidden before.
1578 SPC and DEL can be used to move down and up by lines.
1581 to read the
1583 to relist a single or the marked files or a
1585 again for the directory tree.
1588 for more info):
1590 `dired-listing-switches'
1591 `dired-trivial-filenames'
1592 `dired-shrink-to-fit'
1593 `dired-marker-char'
1594 `dired-del-marker'
1595 `dired-keep-marker-rename'
1596 `dired-keep-marker-copy'
1597 `dired-keep-marker-hardlink'
1598 `dired-keep-marker-symlink'
1602 `dired-before-readin-hook'
1603 `dired-after-readin-hook'
1604 `dired-mode-hook'
1605 `dired-load-hook'
1607 Keybindings:
1609 ;; Not to be called interactively (e.g. dired-directory will be set
1610 ;; to default-directory, which is wrong with wildcards).
1611 (kill-all-local-variables)
1612 (use-local-map dired-mode-map)
1613 (dired-advertise) ; default-directory is already set
1614 (setq major-mode 'dired-mode
1615 mode-name "Dired"
1616 ;; case-fold-search nil
1617 buffer-read-only t
1618 selective-display t ; for subdirectory hiding
1619 mode-line-buffer-identification
1620 (propertized-buffer-identification "%17b"))
1621 (set (make-local-variable 'revert-buffer-function)
1622 (function dired-revert))
1623 (set (make-local-variable 'buffer-stale-function)
1624 (function dired-buffer-stale-p))
1625 (set (make-local-variable 'page-delimiter)
1627 (set (make-local-variable 'dired-directory)
1628 (or dirname default-directory))
1629 ;; list-buffers uses this to display the dir being edited in this buffer.
1630 (set (make-local-variable 'list-buffers-directory)
1631 (expand-file-name (if (listp dired-directory)
1632 (car dired-directory)
1633 dired-directory)))
1634 (set (make-local-variable 'dired-actual-switches)
1635 (or switches dired-listing-switches))
1636 (set (make-local-variable 'font-lock-defaults)
1637 '(dired-font-lock-keywords t nil nil beginning-of-line))
1638 (set (make-local-variable 'desktop-save-buffer)
1639 'dired-desktop-buffer-misc-data)
1640 (setq dired-switches-alist nil)
1641 (dired-sort-other dired-actual-switches t)
1642 (when (featurep 'dnd)
1643 (set (make-local-variable 'dnd-protocol-alist)
1644 (append dired-dnd-protocol-alist dnd-protocol-alist)))
1645 (run-mode-hooks 'dired-mode-hook))
1646 \f
1647 ;; Idiosyncratic dired commands that don't deal with marks.
1649 (defun dired-summary ()
1650 "Summarize basic Dired commands and show recent dired errors."
1651 (interactive)
1652 (dired-why)
1653 ;>> this should check the key-bindings and use substitute-command-keys if non-standard
1654 (message
1655 "d-elete, u-ndelete, x-punge, f-ind, o-ther window, R-ename, C-opy, h-elp"))
1657 (defun dired-undo ()
1658 "Undo in a dired buffer.
1659 This doesn't recover lost files, it just undoes changes in the buffer itself.
1660 You can use it to recover marks, killed lines or subdirs."
1661 (interactive)
1662 (let (buffer-read-only)
1663 (undo))
1664 (dired-build-subdir-alist)
1665 (message "Change in dired buffer undone.
1666 Actual changes in files cannot be undone by Emacs."))
1668 (defun dired-next-line (arg)
1669 "Move down lines then position at filename.
1670 Optional prefix ARG says how many lines to move; default is one line."
1671 (interactive "p")
1672 (next-line arg)
1673 (dired-move-to-filename))
1675 (defun dired-previous-line (arg)
1676 "Move up lines then position at filename.
1677 Optional prefix ARG says how many lines to move; default is one line."
1678 (interactive "p")
1679 (previous-line arg)
1680 (dired-move-to-filename))
1682 (defun dired-next-dirline (arg &optional opoint)
1683 "Goto ARG'th next directory file line."
1684 (interactive "p")
1685 (or opoint (setq opoint (point)))
1686 (if (if (> arg 0)
1687 (re-search-forward dired-re-dir nil t arg)
1688 (beginning-of-line)
1689 (re-search-backward dired-re-dir nil t (- arg)))
1690 (dired-move-to-filename) ; user may type `i' or `f'
1691 (goto-char opoint)
1692 (error "No more subdirectories")))
1694 (defun dired-prev-dirline (arg)
1695 "Goto ARG'th previous directory file line."
1696 (interactive "p")
1697 (dired-next-dirline (- arg)))
1699 (defun dired-up-directory (&optional other-window)
1700 "Run Dired on parent directory of current directory.
1701 Find the parent directory either in this buffer or another buffer.
1702 Creates a buffer if necessary."
1703 (interactive "P")
1704 (let* ((dir (dired-current-directory))
1705 (up (file-name-directory (directory-file-name dir))))
1706 (or (dired-goto-file (directory-file-name dir))
1707 ;; Only try dired-goto-subdir if buffer has more than one dir.
1708 (and (cdr dired-subdir-alist)
1709 (dired-goto-subdir up))
1710 (progn
1711 (if other-window
1712 (dired-other-window up)
1713 (dired up))
1714 (dired-goto-file dir)))))
1716 (defun dired-get-file-for-visit ()
1717 "Get the current line's file name, with an error if file does not exist."
1718 (interactive)
1719 ;; We pass t for second arg so that we don't get error for `.' and `..'.
1720 (let ((raw (dired-get-filename nil t))
1721 file-name)
1722 (if (null raw)
1723 (error "No file on this line"))
1724 (setq file-name (file-name-sans-versions raw t))
1725 (if (file-exists-p file-name)
1726 file-name
1727 (if (file-symlink-p file-name)
1728 (error "File is a symlink to a nonexistent target")
1729 (error "File no longer exists; type `g' to update dired buffer")))))
1731 ;; Force `f' rather than `e' in the mode doc:
1732 (defalias 'dired-advertised-find-file 'dired-find-file)
1733 (defun dired-find-file ()
1734 "In Dired, visit the file or directory named on this line."
1735 (interactive)
1736 ;; Bind `find-file-run-dired' so that the command works on directories
1737 ;; too, independent of the user's setting.
1738 (let ((find-file-run-dired t))
1739 (find-file (dired-get-file-for-visit))))
1741 (defun dired-find-alternate-file ()
1742 "In Dired, visit this file or directory instead of the dired buffer."
1743 (interactive)
1744 (set-buffer-modified-p nil)
1745 (find-alternate-file (dired-get-file-for-visit)))
1746 ;; Don't override the setting from .emacs.
1747 ;;;###autoload (put 'dired-find-alternate-file 'disabled t)
1749 (defun dired-mouse-find-file-other-window (event)
1750 "In Dired, visit the file or directory name you click on."
1751 (interactive "e")
1752 (let (window pos file)
1753 (save-excursion
1754 (setq window (posn-window (event-end event))
1755 pos (posn-point (event-end event)))
1756 (if (not (windowp window))
1757 (error "No file chosen"))
1758 (set-buffer (window-buffer window))
1759 (goto-char pos)
1760 (setq file (dired-get-file-for-visit)))
1761 (if (file-directory-p file)
1762 (or (and (cdr dired-subdir-alist)
1763 (dired-goto-subdir file))
1764 (progn
1765 (select-window window)
1766 (dired-other-window file)))
1767 (select-window window)
1768 (find-file-other-window (file-name-sans-versions file t)))))
1770 (defun dired-view-file ()
1771 "In Dired, examine a file in view mode, returning to Dired when done.
1772 When file is a directory, show it in this buffer if it is inserted.
1773 Otherwise, display it in another buffer."
1774 (interactive)
1775 (let ((file (dired-get-file-for-visit)))
1776 (if (file-directory-p file)
1777 (or (and (cdr dired-subdir-alist)
1778 (dired-goto-subdir file))
1779 (dired file))
1780 (view-file file))))
1782 (defun dired-find-file-other-window ()
1783 "In Dired, visit this file or directory in another window."
1784 (interactive)
1785 (find-file-other-window (dired-get-file-for-visit)))
1787 (defun dired-display-file ()
1788 "In Dired, display this file or directory in another window."
1789 (interactive)
1790 (display-buffer (find-file-noselect (dired-get-file-for-visit))))
1791 \f
1792 ;;; Functions for extracting and manipulating file names in Dired buffers.
1794 (defun dired-get-filename (&optional localp no-error-if-not-filep)
1795 "In Dired, return name of file mentioned on this line.
1796 Value returned normally includes the directory name.
1797 Optional arg LOCALP with value `no-dir' means don't include directory
1798 name in result. A value of `verbatim' means to return the name exactly as
1799 it occurs in the buffer, and a value of t means construct name relative to
1800 `default-directory', which still may contain slashes if in a subdirectory.
1801 Optional arg NO-ERROR-IF-NOT-FILEP means treat `.' and `..' as
1802 regular filenames and return nil if no filename on this line.
1803 Otherwise, an error occurs in these cases."
1804 (let (case-fold-search file p1 p2 already-absolute)
1805 (save-excursion
1806 (if (setq p1 (dired-move-to-filename (not no-error-if-not-filep)))
1807 (setq p2 (dired-move-to-end-of-filename no-error-if-not-filep))))
1808 ;; nil if no file on this line, but no-error-if-not-filep is t:
1809 (if (setq file (and p1 p2 (buffer-substring p1 p2)))
1810 (progn
1811 ;; Get rid of the mouse-face property that file names have.
1812 (set-text-properties 0 (length file) nil file)
1813 ;; Unquote names quoted by ls or by dired-insert-directory.
1814 ;; Using read to unquote is much faster than substituting
1816 (setq file
1817 (read
1819 ;; Some ls -b don't escape quotes, argh!
1820 ;; This is not needed for GNU ls, though.
1821 (or (dired-string-replace-match
1823 file)
1825 ;; The above `read' will return a unibyte string if FILE
1826 ;; contains eight-bit-control/graphic characters.
1827 (if (and enable-multibyte-characters
1828 (not (multibyte-string-p file)))
1829 (setq file (string-to-multibyte file)))))
1830 (and file (file-name-absolute-p file)
1831 ;; A relative file name can start with ~.
1832 ;; Don't treat it as absolute in this context.
1833 (not (eq (aref file 0) ?~))
1834 (setq already-absolute t))
1835 (cond
1836 ((null file)
1837 nil)
1838 ((eq localp 'verbatim)
1839 file)
1840 ((and (not no-error-if-not-filep)
1841 (member file '("." "..")))
1842 (error "Cannot operate on `.' or `..'"))
1843 ((and (eq localp 'no-dir) already-absolute)
1844 (file-name-nondirectory file))
1845 (already-absolute
1846 (let ((handler (find-file-name-handler file nil)))
1847 ;; check for safe-magic property so that we won't
1848 ;; put /: for names that don't really need them.
1849 ;; For instance, .gz files when auto-compression-mode is on.
1850 (if (and handler (not (get handler 'safe-magic)))
1851 (concat "/:" file)
1852 file)))
1853 ((eq localp 'no-dir)
1854 file)
1855 ((equal (dired-current-directory) "/")
1856 (setq file (concat (dired-current-directory localp) file))
1857 (let ((handler (find-file-name-handler file nil)))
1858 ;; check for safe-magic property so that we won't
1859 ;; put /: for names that don't really need them.
1860 ;; For instance, .gz files when auto-compression-mode is on.
1861 (if (and handler (not (get handler 'safe-magic)))
1862 (concat "/:" file)
1863 file)))
1864 (t
1865 (concat (dired-current-directory localp) file)))))
1867 (defun dired-string-replace-match (regexp string newtext
1868 &optional literal global)
1869 "Replace first match of REGEXP in STRING with NEWTEXT.
1870 If it does not match, nil is returned instead of the new string.
1871 Optional arg LITERAL means to take NEWTEXT literally.
1872 Optional arg GLOBAL means to replace all matches."
1873 (if global
1874 (let ((start 0) ret)
1875 (while (string-match regexp string start)
1876 (let ((from-end (- (length string) (match-end 0))))
1877 (setq ret (setq string (replace-match newtext t literal string)))
1878 (setq start (- (length string) from-end))))
1879 ret)
1880 (if (not (string-match regexp string 0))
1881 nil
1882 (replace-match newtext t literal string))))
1884 (defun dired-make-absolute (file &optional dir)
1885 ;;"Convert FILE (a file name relative to DIR) to an absolute file name."
1886 ;; We can't always use expand-file-name as this would get rid of `.'
1887 ;; or expand in / instead default-directory if DIR=="".
1888 ;; This should be good enough for ange-ftp, but might easily be
1889 ;; redefined (for VMS?).
1890 ;; It should be reasonably fast, though, as it is called in
1891 ;; dired-get-filename.
1892 (concat (or dir default-directory) file))
1894 (defun dired-make-relative (file &optional dir ignore)
1895 "Convert FILE (an absolute file name) to a name relative to DIR.
1896 If this is impossible, return FILE unchanged.
1897 DIR must be a directory name, not a file name."
1898 (or dir (setq dir default-directory))
1899 ;; This case comes into play if default-directory is set to
1900 ;; use ~.
1901 (if (and (> (length dir) 0) (= (aref dir 0) ?~))
1902 (setq dir (expand-file-name dir)))
1903 (if (string-match (concat "^" (regexp-quote dir)) file)
1904 (substring file (match-end 0))
1905 ;;; (or no-error
1906 ;;; (error "%s: not in directory tree growing at %s" file dir))
1907 file))
1908 \f
1909 ;;; Functions for finding the file name in a dired buffer line.
1911 (defvar dired-permission-flags-regexp
1913 "Regular expression to match the permission flags in `ls -l'.")
1915 ;; Move to first char of filename on this line.
1916 ;; Returns position (point) or nil if no filename on this line."
1917 (defun dired-move-to-filename (&optional raise-error eol)
1918 "Move to the beginning of the filename on the current line.
1919 Return the position of the beginning of the filename, or nil if none found."
1920 ;; This is the UNIX version.
1921 (or eol (setq eol (line-end-position)))
1922 (beginning-of-line)
1923 ;; First try assuming `ls --dired' was used.
1924 (let ((change (next-single-property-change (point) 'dired-filename nil eol)))
1925 (cond
1926 ((and change (< change eol))
1927 (goto-char change))
1928 ((re-search-forward directory-listing-before-filename-regexp eol t)
1929 (goto-char (match-end 0)))
1930 ((re-search-forward dired-permission-flags-regexp eol t)
1931 ;; Ha! There *is* a file. Our regexp-from-hell just failed to find it.
1932 (if raise-error
1933 (error "Unrecognized line! Check directory-listing-before-filename-regexp"))
1934 (beginning-of-line)
1935 nil)
1936 (raise-error
1937 (error "No file on this line")))))
1939 (defun dired-move-to-end-of-filename (&optional no-error)
1940 ;; Assumes point is at beginning of filename,
1941 ;; thus the rwx bit re-search-backward below will succeed in *this*
1942 ;; line if at all. So, it should be called only after
1943 ;; (dired-move-to-filename t).
1944 ;; On failure, signals an error (with non-nil NO-ERROR just returns nil).
1945 ;; This is the UNIX version.
1946 (if (get-text-property (point) 'dired-filename)
1947 (goto-char (next-single-property-change (point) 'dired-filename))
1948 (let (opoint file-type executable symlink hidden case-fold-search used-F eol)
1949 ;; case-fold-search is nil now, so we can test for capital F:
1950 (setq used-F (string-match "F" dired-actual-switches)
1951 opoint (point)
1952 eol (save-excursion (end-of-line) (point))
1953 hidden (and selective-display
1955 (if hidden
1956 nil
1957 (save-excursion ;; Find out what kind of file this is:
1958 ;; Restrict perm bits to be non-blank,
1959 ;; otherwise this matches one char to early (looking backward):
1960 ;; "l---------" (some systems make symlinks that way)
1961 ;; "----------" (plain file with zero perms)
1962 (if (re-search-backward
1963 dired-permission-flags-regexp nil t)
1964 (setq file-type (char-after (match-beginning 1))
1965 symlink (eq file-type ?l)
1966 ;; Only with -F we need to know whether it's an executable
1967 executable (and
1968 used-F
1969 (string-match
1970 "[xst]" ;; execute bit set anywhere?
1971 (concat
1972 (match-string 2)
1973 (match-string 3)
1974 (match-string 4)))))
1975 (or no-error (error "No file on this line"))))
1976 ;; Move point to end of name:
1977 (if symlink
1978 (if (search-forward " -> " eol t)
1979 (progn
1980 (forward-char -4)
1981 (and used-F
1982 dired-ls-F-marks-symlinks
1983 (eq (preceding-char) ?@) ;; did ls really mark the link?
1984 (forward-char -1))))
1985 (goto-char eol) ;; else not a symbolic link
1986 ;; ls -lF marks dirs, sockets, fifos and executables with exactly
1987 ;; one trailing character. (Executable bits on symlinks ain't mean
1988 ;; a thing, even to ls, but we know it's not a symlink.)
1989 (and used-F
1990 (or (memq file-type '(?d ?s ?p))
1991 executable)
1992 (forward-char -1))))
1993 (or no-error
1994 (not (eq opoint (point)))
1995 (error (if hidden
1996 (substitute-command-keys
1998 "No file on this line")))
1999 (if (eq opoint (point))
2000 nil
2001 (point)))))
2003 \f
2004 ;;; COPY NAMES OF MARKED FILES INTO KILL-RING.
2006 (defun dired-copy-filename-as-kill (&optional arg)
2007 "Copy names of marked (or next ARG) files into the kill ring.
2008 The names are separated by a space.
2009 With a zero prefix arg, use the absolute file name of each marked file.
2011 `default-directory'. (This still may contain slashes if in a subdirectory.)
2013 If on a subdir headerline, use absolute subdirname instead;
2014 prefix arg and marked files are ignored in this case.
2017 (interactive "P")
2018 (let ((string
2019 (or (dired-get-subdir)
2020 (mapconcat (function identity)
2021 (if arg
2022 (cond ((zerop (prefix-numeric-value arg))
2023 (dired-get-marked-files))
2024 ((consp arg)
2025 (dired-get-marked-files t))
2026 (t
2027 (dired-get-marked-files
2028 'no-dir (prefix-numeric-value arg))))
2029 (dired-get-marked-files 'no-dir))
2030 " "))))
2031 (if (eq last-command 'kill-region)
2032 (kill-append string nil)
2033 (kill-new string))
2034 (message "%s" string)))
2036 \f
2037 ;; Keeping Dired buffers in sync with the filesystem and with each other
2039 (defun dired-buffers-for-dir (dir &optional file)
2040 ;; Return a list of buffers that dired DIR (top level or in-situ subdir).
2041 ;; If FILE is non-nil, include only those whose wildcard pattern (if any)
2042 ;; matches FILE.
2043 ;; The list is in reverse order of buffer creation, most recent last.
2044 ;; As a side effect, killed dired buffers for DIR are removed from
2045 ;; dired-buffers.
2046 (setq dir (file-name-as-directory dir))
2047 (let ((alist dired-buffers) result elt buf)
2048 (while alist
2049 (setq elt (car alist)
2050 buf (cdr elt))
2051 (if (buffer-name buf)
2052 (if (dired-in-this-tree dir (car elt))
2053 (with-current-buffer buf
2054 (and (assoc dir dired-subdir-alist)
2055 (or (null file)
2056 (let ((wildcards
2057 (file-name-nondirectory dired-directory)))
2058 (or (= 0 (length wildcards))
2059 (string-match (dired-glob-regexp wildcards)
2060 file))))
2061 (setq result (cons buf result)))))
2062 ;; else buffer is killed - clean up:
2063 (setq dired-buffers (delq elt dired-buffers)))
2064 (setq alist (cdr alist)))
2065 result))
2067 (defun dired-glob-regexp (pattern)
2068 "Convert glob-pattern PATTERN to a regular expression."
2069 (let ((matched-in-pattern 0) ;; How many chars of PATTERN we've handled.
2070 regexp)
2071 (while (string-match "[[?*]" pattern matched-in-pattern)
2072 (let ((op-end (match-end 0))
2073 (next-op (aref pattern (match-beginning 0))))
2074 (setq regexp (concat regexp
2075 (regexp-quote
2076 (substring pattern matched-in-pattern
2077 (match-beginning 0)))))
2078 (cond ((= next-op ??)
2079 (setq regexp (concat regexp "."))
2080 (setq matched-in-pattern op-end))
2081 ((= next-op ?\[)
2082 ;; Fails to handle ^ yet ????
2083 (let* ((set-start (match-beginning 0))
2084 (set-cont
2085 (if (= (aref pattern (1+ set-start)) ?^)
2086 (+ 3 set-start)
2087 (+ 2 set-start)))
2088 (set-end (string-match "]" pattern set-cont))
2089 (set (substring pattern set-start (1+ set-end))))
2090 (setq regexp (concat regexp set))
2091 (setq matched-in-pattern (1+ set-end))))
2092 ((= next-op ?*)
2093 (setq regexp (concat regexp ".*"))
2094 (setq matched-in-pattern op-end)))))
2096 regexp
2097 (regexp-quote
2098 (substring pattern matched-in-pattern))
2103 (defun dired-advertise ()
2104 ;;"Advertise in variable `dired-buffers' that we dired `default-directory'."
2105 ;; With wildcards we actually advertise too much.
2106 (let ((expanded-default (expand-file-name default-directory)))
2107 (if (memq (current-buffer) (dired-buffers-for-dir expanded-default))
2108 t ; we have already advertised ourselves
2109 (setq dired-buffers
2110 (cons (cons expanded-default (current-buffer))
2111 dired-buffers)))))
2113 (defun dired-unadvertise (dir)
2114 ;; Remove DIR from the buffer alist in variable dired-buffers.
2115 ;; This has the effect of removing any buffer whose main directory is DIR.
2116 ;; It does not affect buffers in which DIR is a subdir.
2117 ;; Removing is also done as a side-effect in dired-buffer-for-dir.
2118 (setq dired-buffers
2119 (delq (assoc (expand-file-name dir) dired-buffers) dired-buffers)))
2120 \f
2121 ;; Tree Dired
2123 ;;; utility functions
2125 (defun dired-in-this-tree (file dir)
2126 ;;"Is FILE part of the directory tree starting at DIR?"
2127 (let (case-fold-search)
2128 (string-match (concat "^" (regexp-quote dir)) file)))
2130 (defun dired-normalize-subdir (dir)
2131 ;; Prepend default-directory to DIR if relative file name.
2132 ;; dired-get-filename must be able to make a valid file name from a
2133 ;; file and its directory DIR.
2134 (file-name-as-directory
2135 (if (file-name-absolute-p dir)
2136 dir
2137 (expand-file-name dir default-directory))))
2139 (defun dired-get-subdir ()
2140 ;;"Return the subdir name on this line, or nil if not on a headerline."
2141 ;; Look up in the alist whether this is a headerline.
2142 (save-excursion
2143 (let ((cur-dir (dired-current-directory)))
2144 (beginning-of-line) ; alist stores b-o-l positions
2145 (and (zerop (- (point)
2146 (dired-get-subdir-min (assoc cur-dir
2147 dired-subdir-alist))))
2148 cur-dir))))
2150 ;(defun dired-get-subdir-min (elt)
2151 ; (cdr elt))
2152 ;; can't use macro, must be redefinable for other alist format in dired-nstd.
2153 (defalias 'dired-get-subdir-min 'cdr)
2155 (defun dired-get-subdir-max (elt)
2156 (save-excursion
2157 (goto-char (dired-get-subdir-min elt))
2158 (dired-subdir-max)))
2160 (defun dired-clear-alist ()
2161 (while dired-subdir-alist
2162 (set-marker (dired-get-subdir-min (car dired-subdir-alist)) nil)
2163 (setq dired-subdir-alist (cdr dired-subdir-alist))))
2165 (defun dired-subdir-index (dir)
2166 ;; Return an index into alist for use with nth
2167 ;; for the sake of subdir moving commands.
2168 (let (found (index 0) (alist dired-subdir-alist))
2169 (while alist
2170 (if (string= dir (car (car alist)))
2171 (setq alist nil found t)
2172 (setq alist (cdr alist) index (1+ index))))
2173 (if found index nil)))
2175 (defun dired-next-subdir (arg &optional no-error-if-not-found no-skip)
2176 "Go to next subdirectory, regardless of level."
2177 ;; Use 0 arg to go to this directory's header line.
2178 ;; NO-SKIP prevents moving to end of header line, returning whatever
2179 ;; position was found in dired-subdir-alist.
2180 (interactive "p")
2181 (let ((this-dir (dired-current-directory))
2182 pos index)
2183 ;; nth with negative arg does not return nil but the first element
2184 (setq index (- (dired-subdir-index this-dir) arg))
2185 (setq pos (if (>= index 0)
2186 (dired-get-subdir-min (nth index dired-subdir-alist))))
2187 (if pos
2188 (progn
2189 (goto-char pos)
2191 (point))
2192 (if no-error-if-not-found
2193 nil ; return nil if not found
2194 (error "%s directory" (if (> arg 0) "Last" "First"))))))
2196 (defun dired-build-subdir-alist (&optional switches)
2197 "Build `dired-subdir-alist' by parsing the buffer.
2198 Returns the new value of the alist.
2199 If optional arg SWITCHES is non-nil, use its value
2200 instead of `dired-actual-switches'."
2201 (interactive)
2202 (dired-clear-alist)
2203 (save-excursion
2204 (let* ((count 0)
2205 (buffer-read-only nil)
2206 (buffer-undo-list t)
2207 (switches (or switches dired-actual-switches))
2208 new-dir-name
2209 (R-ftp-base-dir-regex
2210 ;; Used to expand subdirectory names correctly in recursive
2211 ;; ange-ftp listings.
2212 (and (string-match "R" switches)
2215 (goto-char (point-min))
2216 (setq dired-subdir-alist nil)
2217 (while (re-search-forward dired-subdir-regexp nil t)
2218 ;; Avoid taking a file name ending in a colon
2219 ;; as a subdir name.
2220 (unless (save-excursion
2221 (goto-char (match-beginning 0))
2222 (beginning-of-line)
2223 (forward-char 2)
2224 (save-match-data (looking-at dired-re-perms)))
2225 (save-excursion
2226 (goto-char (match-beginning 1))
2227 (setq new-dir-name
2228 (buffer-substring-no-properties (point) (match-end 1))
2229 new-dir-name
2230 (save-match-data
2231 (if (and R-ftp-base-dir-regex
2232 (not (string= new-dir-name default-directory))
2233 (string-match R-ftp-base-dir-regex new-dir-name))
2234 (concat default-directory
2235 (substring new-dir-name (match-end 0)))
2236 (expand-file-name new-dir-name))))
2237 (delete-region (point) (match-end 1))
2238 (insert new-dir-name))
2239 (setq count (1+ count))
2240 (dired-alist-add-1 new-dir-name
2241 ;; Place a sub directory boundary between lines.
2242 (save-excursion
2243 (goto-char (match-beginning 0))
2244 (beginning-of-line)
2245 (point-marker)))))
2246 (if (and (> count 1) (interactive-p))
2247 (message "Buffer includes %d directories" count)))
2248 ;; We don't need to sort it because it is in buffer order per
2249 ;; constructionem. Return new alist:
2250 dired-subdir-alist))
2252 (defun dired-alist-add-1 (dir new-marker)
2253 ;; Add new DIR at NEW-MARKER. Don't sort.
2254 (setq dired-subdir-alist
2255 (cons (cons (dired-normalize-subdir dir) new-marker)
2256 dired-subdir-alist)))
2258 (defun dired-goto-next-nontrivial-file ()
2259 ;; Position point on first nontrivial file after point.
2260 (dired-goto-next-file);; so there is a file to compare with
2261 (if (stringp dired-trivial-filenames)
2262 (while (and (not (eobp))
2263 (string-match dired-trivial-filenames
2264 (file-name-nondirectory
2265 (or (dired-get-filename nil t) ""))))
2266 (forward-line 1)
2267 (dired-move-to-filename))))
2269 (defun dired-goto-next-file ()
2270 (let ((max (1- (dired-subdir-max))))
2271 (while (and (not (dired-move-to-filename)) (< (point) max))
2272 (forward-line 1))))
2274 (defun dired-goto-file (file)
2275 "Go to line describing file FILE in this dired buffer."
2276 ;; Return value of point on success, else nil.
2277 ;; FILE must be an absolute file name.
2280 ;; it in the buffer.
2281 (interactive
2282 (prog1 ; let push-mark display its message
2283 (list (expand-file-name
2284 (read-file-name "Goto file: "
2285 (dired-current-directory))))
2286 (push-mark)))
2287 (setq file (directory-file-name file)) ; does no harm if no directory
2288 (let (found case-fold-search dir)
2289 (setq dir (or (file-name-directory file)
2290 (error "File name `%s' is not absolute" file)))
2291 (save-excursion
2292 ;; The hair here is to get the result of dired-goto-subdir
2293 ;; without really calling it if we don't have any subdirs.
2294 (if (if (string= dir (expand-file-name default-directory))
2295 (goto-char (point-min))
2296 (and (cdr dired-subdir-alist)
2297 (dired-goto-subdir dir)))
2298 (let ((base (file-name-nondirectory file))
2299 search-string
2300 (boundary (dired-subdir-max)))
2301 (setq search-string
2303 (setq search-string
2305 (while (and (not found)
2306 ;; filenames are preceded by SPC, this makes
2307 ;; the search faster (e.g. for the filename "-"!).
2308 (search-forward (concat " " search-string)
2309 boundary 'move))
2310 ;; Match could have BASE just as initial substring or
2311 ;; or in permission bits or date or
2312 ;; not be a proper filename at all:
2313 (if (equal base (dired-get-filename 'no-dir t))
2314 ;; Must move to filename since an (actually
2315 ;; correct) match could have been elsewhere on the
2316 ;; ;; line (e.g. "-" would match somewhere in the
2317 ;; permission bits).
2318 (setq found (dired-move-to-filename))
2319 ;; If this isn't the right line, move forward to avoid
2320 ;; trying this line again.
2321 (forward-line 1))))))
2322 (and found
2323 ;; return value of point (i.e., FOUND):
2324 (goto-char found))))
2326 (defun dired-initial-position (dirname)
2327 ;; Where point should go in a new listing of DIRNAME.
2328 ;; Point assumed at beginning of new subdir line.
2329 ;; You may redefine this function as you wish, e.g. like in dired-x.el.
2330 (end-of-line)
2331 (if dired-trivial-filenames (dired-goto-next-nontrivial-file)))
2332 \f
2333 ;; These are hooks which make tree dired work.
2334 ;; They are in this file because other parts of dired need to call them.
2335 ;; But they don't call the rest of tree dired unless there are subdirs loaded.
2337 ;; This function is called for each retrieved filename.
2338 ;; It could stand to be faster, though it's mostly function call
2339 ;; overhead. Avoiding the function call seems to save about 10% in
2340 ;; dired-get-filename. Make it a defsubst?
2341 (defun dired-current-directory (&optional localp)
2342 "Return the name of the subdirectory to which this line belongs.
2343 This returns a string with trailing slash, like `default-directory'.
2344 Optional argument means return a file name relative to `default-directory'."
2345 (let ((here (point))
2346 (alist (or dired-subdir-alist
2347 ;; probably because called in a non-dired buffer
2348 (error "No subdir-alist in %s" (current-buffer))))
2349 elt dir)
2350 (while alist
2351 (setq elt (car alist)
2352 dir (car elt)
2353 ;; use `<=' (not `<') as subdir line is part of subdir
2354 alist (if (<= (dired-get-subdir-min elt) here)
2355 nil ; found
2356 (cdr alist))))
2357 (if localp
2358 (dired-make-relative dir default-directory)
2359 dir)))
2361 ;; Subdirs start at the beginning of their header lines and end just
2362 ;; before the beginning of the next header line (or end of buffer).
2364 (defun dired-subdir-max ()
2365 (save-excursion
2366 (if (or (null (cdr dired-subdir-alist)) (not (dired-next-subdir 1 t t)))
2367 (point-max)
2368 (point))))
2369 \f
2370 ;; Deleting files
2372 (defcustom dired-recursive-deletes 'top
2373 "*Decide whether recursive deletes are allowed.
2374 A value of nil means no recursive deletes.
2375 `always' means delete recursively without asking. This is DANGEROUS!
2376 `top' means ask for each directory at top level, but delete its subdirectories
2377 without asking.
2378 Anything else means ask for each directory."
2379 :type '(choice :tag "Delete non-empty directories"
2380 (const :tag "Yes" always)
2381 (const :tag "No--only delete empty directories" nil)
2382 (const :tag "Confirm for each directory" t)
2383 (const :tag "Confirm for each top directory only" top))
2384 :group 'dired)
2386 ;; Match anything but `.' and `..'.
2389 ;; Delete file, possibly delete a directory and all its files.
2390 ;; This function is usefull outside of dired. One could change it's name
2391 ;; to e.g. recursive-delete-file and put it somewhere else.
2392 (defun dired-delete-file (file &optional recursive) "\
2393 Delete FILE or directory (possibly recursively if optional RECURSIVE is true.)
2394 RECURSIVE determines what to do with a non-empty directory. If RECURSIVE is:
2395 nil, do not delete.
2396 `always', delete recursively without asking.
2397 `top', ask for each directory at top level.
2398 Anything else, ask for each sub-directory."
2399 (let (files)
2400 ;; This test is equivalent to
2401 ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
2402 ;; but more efficient
2403 (if (not (eq t (car (file-attributes file))))
2404 (delete-file file)
2405 (when (and recursive
2406 (setq files
2407 (directory-files file t dired-re-no-dot)) ; Not empty.
2408 (or (eq recursive 'always)
2409 (yes-or-no-p (format "Recursive delete of %s? "
2410 (dired-make-relative file)))))
2411 (if (eq recursive 'top) (setq recursive 'always)) ; Don't ask again.
2412 (while files ; Recursively delete (possibly asking).
2413 (dired-delete-file (car files) recursive)
2414 (setq files (cdr files))))
2415 (delete-directory file))))
2417 (defun dired-do-flagged-delete (&optional nomessage)
2418 "In Dired, delete the files flagged for deletion.
2419 If NOMESSAGE is non-nil, we don't display any message
2420 if there are no flagged files.
2421 `dired-recursive-deletes' controls whether
2422 deletion of non-empty directories is allowed."
2423 (interactive)
2424 (let* ((dired-marker-char dired-del-marker)
2425 (regexp (dired-marker-regexp))
2426 case-fold-search)
2427 (if (save-excursion (goto-char (point-min))
2428 (re-search-forward regexp nil t))
2429 (dired-internal-do-deletions
2430 ;; this can't move point since ARG is nil
2431 (dired-map-over-marks (cons (dired-get-filename) (point))
2432 nil)
2433 nil)
2434 (or nomessage
2435 (message "(No deletions requested)")))))
2437 (defun dired-do-delete (&optional arg)
2438 "Delete all marked (or next ARG) files.
2439 `dired-recursive-deletes' controls whether
2440 deletion of non-empty directories is allowed."
2441 ;; This is more consistent with the file marking feature than
2442 ;; dired-do-flagged-delete.
2443 (interactive "P")
2444 (dired-internal-do-deletions
2445 ;; this may move point if ARG is an integer
2446 (dired-map-over-marks (cons (dired-get-filename) (point))
2447 arg)
2448 arg))
2450 (defvar dired-deletion-confirmer 'yes-or-no-p) ; or y-or-n-p?
2452 (defun dired-internal-do-deletions (l arg)
2453 ;; L is an alist of files to delete, with their buffer positions.
2454 ;; ARG is the prefix arg.
2455 ;; Filenames are absolute (VMS needs this for logical search paths).
2456 ;; (car L) *must* be the *last* (bottommost) file in the dired buffer.
2457 ;; That way as changes are made in the buffer they do not shift the
2458 ;; lines still to be changed, so the (point) values in L stay valid.
2459 ;; Also, for subdirs in natural order, a subdir's files are deleted
2460 ;; before the subdir itself - the other way around would not work.
2461 (let ((files (mapcar (function car) l))
2462 (count (length l))
2463 (succ 0))
2464 ;; canonicalize file list for pop up
2465 (setq files (nreverse (mapcar (function dired-make-relative) files)))
2466 (if (dired-mark-pop-up
2467 " *Deletions*" 'delete files dired-deletion-confirmer
2468 (format "Delete %s " (dired-mark-prompt arg files)))
2469 (save-excursion
2470 (let (failures);; files better be in reverse order for this loop!
2471 (while l
2472 (goto-char (cdr (car l)))
2473 (let (buffer-read-only)
2474 (condition-case err
2475 (let ((fn (car (car l))))
2476 (dired-delete-file fn dired-recursive-deletes)
2477 ;; if we get here, removing worked
2478 (setq succ (1+ succ))
2479 (message "%s of %s deletions" succ count)
2480 (dired-fun-in-all-buffers
2481 (file-name-directory fn) (file-name-nondirectory fn)
2482 (function dired-delete-entry) fn))
2483 (error;; catch errors from failed deletions
2485 (setq failures (cons (car (car l)) failures)))))
2486 (setq l (cdr l)))
2487 (if (not failures)
2488 (message "%d deletion%s done" count (dired-plural-s count))
2489 (dired-log-summary
2490 (format "%d of %d deletion%s failed"
2491 (length failures) count
2492 (dired-plural-s count))
2493 failures))))
2494 (message "(No deletions performed)")))
2495 (dired-move-to-filename))
2497 (defun dired-fun-in-all-buffers (directory file fun &rest args)
2498 ;; In all buffers dired'ing DIRECTORY, run FUN with ARGS.
2499 ;; If the buffer has a wildcard pattern, check that it matches FILE.
2500 ;; (FILE does not include a directory component.)
2501 ;; FILE may be nil, in which case ignore it.
2502 ;; Return list of buffers where FUN succeeded (i.e., returned non-nil).
2503 (let (success-list)
2504 (dolist (buf (dired-buffers-for-dir (expand-file-name directory)
2505 file))
2506 (with-current-buffer buf
2507 (if (apply fun args)
2508 (setq success-list (cons (buffer-name buf) success-list)))))
2509 success-list))
2511 ;; Delete the entry for FILE from
2512 (defun dired-delete-entry (file)
2513 (save-excursion
2514 (and (dired-goto-file file)
2515 (let (buffer-read-only)
2516 (delete-region (progn (beginning-of-line) (point))
2517 (save-excursion (forward-line 1) (point))))))
2518 (dired-clean-up-after-deletion file))
2520 ;; This is a separate function for the sake of dired-x.el.
2521 (defun dired-clean-up-after-deletion (fn)
2522 ;; Clean up after a deleted file or directory FN.
2523 (save-excursion (and (cdr dired-subdir-alist)
2524 (dired-goto-subdir fn)
2525 (dired-kill-subdir))))
2526 \f
2527 ;; Confirmation
2529 (defun dired-marker-regexp ()
2530 (concat "^" (regexp-quote (char-to-string dired-marker-char))))
2532 (defun dired-plural-s (count)
2533 (if (= 1 count) "" "s"))
2535 (defun dired-mark-prompt (arg files)
2536 ;; Return a string for use in a prompt, either the current file
2537 ;; name, or the marker and a count of marked files.
2538 (let ((count (length files)))
2539 (if (= count 1)
2540 (car files)
2541 ;; more than 1 file:
2542 (if (integerp arg)
2543 ;; abs(arg) = count
2544 ;; Perhaps this is nicer, but it also takes more screen space:
2545 ;;(format "[%s %d files]" (if (> arg 0) "next" "previous")
2546 ;; count)
2547 (format "[next %d files]" arg)
2548 (format "%c [%d files]" dired-marker-char count)))))
2550 (defun dired-pop-to-buffer (buf)
2551 ;; Pop up buffer BUF.
2552 ;; If dired-shrink-to-fit is t, make its window fit its contents.
2553 (if (not dired-shrink-to-fit)
2554 (pop-to-buffer (get-buffer-create buf))
2555 ;; let window shrink to fit:
2556 (let ((window (selected-window))
2557 target-lines w2)
2558 (cond ;; if split-height-threshold is enabled, use the largest window
2559 ((and (> (window-height (setq w2 (get-largest-window)))
2560 split-height-threshold)
2561 (window-full-width-p w2))
2562 (setq window w2))
2563 ;; if the least-recently-used window is big enough, use it
2564 ((and (> (window-height (setq w2 (get-lru-window)))
2565 (* 2 window-min-height))
2566 (window-full-width-p w2))
2567 (setq window w2)))
2568 (save-excursion
2569 (set-buffer buf)
2570 (goto-char (point-max))
2572 (setq target-lines (count-lines (point-min) (point)))
2573 ;; Don't forget to count the last line.
2574 (if (not (bolp))
2575 (setq target-lines (1+ target-lines))))
2576 (if (<= (window-height window) (* 2 window-min-height))
2577 ;; At this point, every window on the frame is too small to split.
2578 (setq w2 (display-buffer buf))
2579 (setq w2 (split-window window
2580 (max window-min-height
2581 (- (window-height window)
2582 (1+ (max window-min-height target-lines)))))))
2583 (set-window-buffer w2 buf)
2584 (if (< (1- (window-height w2)) target-lines)
2585 (progn
2586 (select-window w2)
2587 (enlarge-window (- target-lines (1- (window-height w2))))))
2588 (set-window-start w2 1)
2589 )))
2591 (defcustom dired-no-confirm nil
2592 "A list of symbols for commands Dired should not confirm.
2593 Command symbols are `byte-compile', `chgrp', `chmod', `chown', `compress',
2594 `copy', `delete', `hardlink', `load', `move', `print', `shell', `symlink',
2595 `touch' and `uncompress'."
2596 :group 'dired
2597 :type '(set (const byte-compile) (const chgrp)
2598 (const chmod) (const chown) (const compress)
2599 (const copy) (const delete) (const hardlink)
2600 (const load) (const move) (const print)
2601 (const shell) (const symlink) (const touch)
2602 (const uncompress)))
2604 (defun dired-mark-pop-up (bufname op-symbol files function &rest args)
2605 "Return FUNCTION's result on ARGS after showing which files are marked.
2606 Displays the file names in a buffer named BUFNAME;
2608 This uses function `dired-pop-to-buffer' to do that.
2610 FUNCTION should not manipulate files, just read input
2611 (an argument or confirmation).
2612 The window is not shown if there is just one file or
2613 OP-SYMBOL is a member of the list in `dired-no-confirm'.
2614 FILES is the list of marked files. It can also be (t FILENAME)
2615 in the case of one marked file, to distinguish that from using
2616 just the current file."
2617 (or bufname (setq bufname " *Marked Files*"))
2618 (if (or (eq dired-no-confirm t)
2619 (memq op-symbol dired-no-confirm)
2620 ;; If FILES defaulted to the current line's file.
2621 (= (length files) 1))
2622 (apply function args)
2623 (with-current-buffer (get-buffer-create bufname)
2624 (erase-buffer)
2625 ;; Handle (t FILE) just like (FILE), here.
2626 ;; That value is used (only in some cases), to mean
2627 ;; just one file that was marked, rather than the current line file.
2628 (dired-format-columns-of-files (if (eq (car files) t) (cdr files) files))
2629 (remove-text-properties (point-min) (point-max)
2630 '(mouse-face nil help-echo nil)))
2631 (save-window-excursion
2632 (dired-pop-to-buffer bufname)
2633 (apply function args))))
2635 (defun dired-format-columns-of-files (files)
2636 ;; Files should be in forward order for this loop.
2637 ;; i.e., (car files) = first file in buffer.
2638 ;; Returns the number of lines used.
2639 (let* ((maxlen (+ 2 (apply 'max (mapcar 'length files))))
2640 (width (- (window-width (selected-window)) 2))
2641 (columns (max 1 (/ width maxlen)))
2642 (nfiles (length files))
2643 (rows (+ (/ nfiles columns)
2644 (if (zerop (% nfiles columns)) 0 1)))
2645 (i 0)
2646 (j 0))
2647 (setq files (nconc (copy-sequence files) ; fill up with empty fns
2648 (make-list (- (* columns rows) nfiles) "")))
2649 (setcdr (nthcdr (1- (length files)) files) files) ; make circular
2650 (while (< j rows)
2651 (while (< i columns)
2652 (indent-to (* i maxlen))
2653 (insert (car files))
2654 (setq files (nthcdr rows files)
2655 i (1+ i)))
2657 (setq i 0
2658 j (1+ j)
2659 files (cdr files)))
2660 rows))
2661 \f
2662 ;; Commands to mark or flag file(s) at or near current line.
2664 (defun dired-repeat-over-lines (arg function)
2665 ;; This version skips non-file lines.
2666 (let ((pos (make-marker)))
2667 (beginning-of-line)
2668 (while (and (> arg 0) (not (eobp)))
2669 (setq arg (1- arg))
2670 (beginning-of-line)
2671 (while (and (not (eobp)) (dired-between-files)) (forward-line 1))
2672 (save-excursion
2673 (forward-line 1)
2674 (move-marker pos (1+ (point))))
2675 (save-excursion (funcall function))
2676 ;; Advance to the next line--actually, to the line that *was* next.
2677 ;; (If FUNCTION inserted some new lines in between, skip them.)
2678 (goto-char pos))
2679 (while (and (< arg 0) (not (bobp)))
2680 (setq arg (1+ arg))
2681 (forward-line -1)
2682 (while (and (not (bobp)) (dired-between-files)) (forward-line -1))
2683 (beginning-of-line)
2684 (save-excursion (funcall function)))
2685 (move-marker pos nil)
2686 (dired-move-to-filename)))
2688 (defun dired-between-files ()
2689 ;; This used to be a regexp match of the `total ...' line output by
2690 ;; ls, which is slightly faster, but that is not very robust; notably,
2691 ;; it fails for non-english locales.
2692 (save-excursion (not (dired-move-to-filename))))
2694 (defun dired-next-marked-file (arg &optional wrap opoint)
2695 "Move to the next marked file, wrapping around the end of the buffer."
2697 (or opoint (setq opoint (point)));; return to where interactively started
2698 (if (if (> arg 0)
2699 (re-search-forward dired-re-mark nil t arg)
2700 (beginning-of-line)
2701 (re-search-backward dired-re-mark nil t (- arg)))
2702 (dired-move-to-filename)
2703 (if (null wrap)
2704 (progn
2705 (goto-char opoint)
2706 (error "No next marked file"))
2707 (message "(Wraparound for next marked file)")
2708 (goto-char (if (> arg 0) (point-min) (point-max)))
2709 (dired-next-marked-file arg nil opoint))))
2711 (defun dired-prev-marked-file (arg &optional wrap)
2712 "Move to the previous marked file, wrapping around the end of the buffer."
2714 (dired-next-marked-file (- arg) wrap))
2716 (defun dired-file-marker (file)
2717 ;; Return FILE's marker, or nil if unmarked.
2718 (save-excursion
2719 (and (dired-goto-file file)
2720 (progn
2721 (beginning-of-line)
2723 (following-char))))))
2725 (defun dired-mark-files-in-region (start end)
2726 (let (buffer-read-only)
2727 (if (> start end)
2728 (error "start > end"))
2729 (goto-char start) ; assumed at beginning of line
2730 (while (< (point) end)
2731 ;; Skip subdir line and following garbage like the `total' line:
2732 (while (and (< (point) end) (dired-between-files))
2733 (forward-line 1))
2734 (if (and (not (looking-at dired-re-dot))
2735 (dired-get-filename nil t))
2736 (progn
2737 (delete-char 1)
2738 (insert dired-marker-char)))
2739 (forward-line 1))))
2741 (defun dired-mark (arg)
2742 "Mark the current (or next ARG) files.
2743 If on a subdir headerline, mark all its files except `.' and `..'.
2747 this subdir."
2748 (interactive "P")
2749 (if (dired-get-subdir)
2750 (save-excursion (dired-mark-subdir-files))
2751 (let (buffer-read-only)
2752 (dired-repeat-over-lines
2753 (prefix-numeric-value arg)
2754 (function (lambda () (delete-char 1) (insert dired-marker-char)))))))
2756 (defun dired-unmark (arg)
2757 "Unmark the current (or next ARG) files.
2758 If looking at a subdir, unmark all its files except `.' and `..'."
2759 (interactive "P")
2761 (dired-mark arg)))
2763 (defun dired-flag-file-deletion (arg)
2764 "In Dired, flag the current line's file for deletion.
2765 With prefix arg, repeat over several lines.
2767 If on a subdir headerline, mark all its files except `.' and `..'."
2768 (interactive "P")
2769 (let ((dired-marker-char dired-del-marker))
2770 (dired-mark arg)))
2772 (defun dired-unmark-backward (arg)
2773 "In Dired, move up lines and remove deletion flag there.
2774 Optional prefix ARG says how many lines to unflag; default is one line."
2775 (interactive "p")
2776 (dired-unmark (- arg)))
2778 (defun dired-toggle-marks ()
2779 "Toggle marks: marked files become unmarked, and vice versa.
2780 Files marked with other flags (such as `D') are not affected.
2781 `.' and `..' are never toggled.
2782 As always, hidden subdirs are not affected."
2783 (interactive)
2784 (save-excursion
2785 (goto-char (point-min))
2786 (let (buffer-read-only)
2787 (while (not (eobp))
2788 (or (dired-between-files)
2789 (looking-at dired-re-dot)
2790 ;; use subst instead of insdel because it does not move
2791 ;; the gap and thus should be faster and because
2792 ;; other characters are left alone automatically
2793 (apply 'subst-char-in-region
2794 (point) (1+ (point))
2798 (forward-line 1)))))
2799 \f
2800 ;;; Commands to mark or flag files based on their characteristics or names.
2802 (defvar dired-regexp-history nil
2803 "History list of regular expressions used in Dired commands.")
2805 (defun dired-read-regexp (prompt)
2806 (read-from-minibuffer prompt nil nil nil 'dired-regexp-history))
2808 (defun dired-mark-files-regexp (regexp &optional marker-char)
2809 "Mark all files matching REGEXP for use in later commands.
2810 A prefix argument means to unmark them instead.
2811 `.' and `..' are never marked.
2814 object files--just `.o' will mark more than you might think."
2815 (interactive
2816 (list (dired-read-regexp (concat (if current-prefix-arg "Unmark" "Mark")
2817 " files (regexp): "))
2819 (let ((dired-marker-char (or marker-char dired-marker-char)))
2820 (dired-mark-if
2821 (and (not (looking-at dired-re-dot))
2822 (not (eolp)) ; empty line
2823 (let ((fn (dired-get-filename nil t)))
2824 (and fn (string-match regexp (file-name-nondirectory fn)))))
2825 "matching file")))
2827 (defun dired-mark-files-containing-regexp (regexp &optional marker-char)
2828 "Mark all files with contents containing REGEXP for use in later commands.
2829 A prefix argument means to unmark them instead.
2830 `.' and `..' are never marked."
2831 (interactive
2832 (list (dired-read-regexp (concat (if current-prefix-arg "Unmark" "Mark")
2833 " files containing (regexp): "))
2835 (let ((dired-marker-char (or marker-char dired-marker-char)))
2836 (dired-mark-if
2837 (and (not (looking-at dired-re-dot))
2838 (not (eolp)) ; empty line
2839 (let ((fn (dired-get-filename nil t)))
2840 (when (and fn (file-readable-p fn)
2841 (not (file-directory-p fn)))
2842 (let ((prebuf (get-file-buffer fn)))
2843 (message "Checking %s" fn)
2844 ;; For now we do it inside emacs
2845 ;; Grep might be better if there are a lot of files
2846 (if prebuf
2847 (with-current-buffer prebuf
2848 (save-excursion
2849 (goto-char (point-min))
2850 (re-search-forward regexp nil t)))
2851 (with-temp-buffer
2852 (insert-file-contents fn)
2853 (goto-char (point-min))
2854 (re-search-forward regexp nil t))))
2855 )))
2856 "matching file")))
2858 (defun dired-flag-files-regexp (regexp)
2859 "In Dired, flag all files containing the specified REGEXP for deletion.
2860 The match is against the non-directory part of the filename. Use `^'
2861 and `$' to anchor matches. Exclude subdirs by hiding them.
2862 `.' and `..' are never flagged."
2863 (interactive (list (dired-read-regexp "Flag for deletion (regexp): ")))
2864 (dired-mark-files-regexp regexp dired-del-marker))
2866 (defun dired-mark-symlinks (unflag-p)
2867 "Mark all symbolic links.
2868 With prefix argument, unflag all those files."
2869 (interactive "P")
2871 (dired-mark-if (looking-at dired-re-sym) "symbolic link")))
2873 (defun dired-mark-directories (unflag-p)
2874 "Mark all directory file lines except `.' and `..'.
2875 With prefix argument, unflag all those files."
2876 (interactive "P")
2878 (dired-mark-if (and (looking-at dired-re-dir)
2879 (not (looking-at dired-re-dot)))
2880 "directory file")))
2882 (defun dired-mark-executables (unflag-p)
2883 "Mark all executable files.
2884 With prefix argument, unflag all those files."
2885 (interactive "P")
2887 (dired-mark-if (looking-at dired-re-exe) "executable file")))
2889 ;; dired-x.el has a dired-mark-sexp interactive command: mark
2890 ;; files for which PREDICATE returns non-nil.
2892 (defun dired-flag-auto-save-files (&optional unflag-p)
2893 "Flag for deletion files whose names suggest they are auto save files.
2894 A prefix argument says to unflag those files instead."
2895 (interactive "P")
2897 (dired-mark-if
2898 ;; It is less than general to check for # here,
2899 ;; but it's the only way this runs fast enough.
2900 (and (save-excursion (end-of-line)
2901 (or
2902 (eq (preceding-char) ?#)
2903 ;; Handle executables in case of -F option.
2904 ;; We need not worry about the other kinds
2905 ;; of markings that -F makes, since they won't
2906 ;; appear on real auto-save files.
2907 (if (eq (preceding-char) ?*)
2908 (progn
2909 (forward-char -1)
2910 (eq (preceding-char) ?#)))))
2911 (not (looking-at dired-re-dir))
2912 (let ((fn (dired-get-filename t t)))
2913 (if fn (auto-save-file-name-p
2914 (file-name-nondirectory fn)))))
2915 "auto save file")))
2917 (defcustom dired-garbage-files-regexp
2918 ;; `log' here is dubious, since it's typically used for useful log
2919 ;; files, not just TeX stuff. -- fx
2920 (concat (regexp-opt
2921 '(".log" ".toc" ".dvi" ".bak" ".orig" ".rej" ".aux"))
2924 :type 'regexp
2925 :group 'dired)
2927 (defun dired-flag-garbage-files ()
2928 "Flag for deletion all files that match `dired-garbage-files-regexp'."
2929 (interactive)
2930 (dired-flag-files-regexp dired-garbage-files-regexp))
2932 (defun dired-flag-backup-files (&optional unflag-p)
2933 "Flag all backup files (names ending with `~') for deletion.
2934 With prefix argument, unflag these files."
2935 (interactive "P")
2936 (let ((dired-marker-char (if unflag-p ?\s dired-del-marker)))
2937 (dired-mark-if
2938 ;; Don't call backup-file-name-p unless the last character looks like
2939 ;; it might be the end of a backup file name. This isn't very general,
2940 ;; but it's the only way this runs fast enough.
2941 (and (save-excursion (end-of-line)
2942 ;; Handle executables in case of -F option.
2943 ;; We need not worry about the other kinds
2944 ;; of markings that -F makes, since they won't
2945 ;; appear on real backup files.
2946 (if (eq (preceding-char) ?*)
2947 (forward-char -1))
2948 (eq (preceding-char) ?~))
2949 (not (looking-at dired-re-dir))
2950 (let ((fn (dired-get-filename t t)))
2951 (if fn (backup-file-name-p fn))))
2952 "backup file")))
2954 (defun dired-change-marks (&optional old new)
2955 "Change all OLD marks to NEW marks.
2956 OLD and NEW are both characters used to mark files."
2957 (interactive
2958 (let* ((cursor-in-echo-area t)
2959 (old (progn (message "Change (old mark): ") (read-char)))
2960 (new (progn (message "Change %c marks to (new mark): " old)
2961 (read-char))))
2962 (list old new)))
2964 (ding)
2966 (buffer-read-only))
2967 (save-excursion
2968 (goto-char (point-min))
2969 (while (search-forward string nil t)
2970 (if (if (= old ?\s)
2971 (save-match-data
2972 (dired-get-filename 'no-dir t))
2973 t)
2974 (subst-char-in-region (match-beginning 0)
2975 (match-end 0) old new)))))))
2977 (defun dired-unmark-all-marks ()
2978 "Remove all marks from all files in the dired buffer."
2979 (interactive)
2982 (defun dired-unmark-all-files (mark &optional arg)
2983 "Remove a specific mark (or any mark) from every file.
2984 After this command, type the mark character to remove,
2985 or type RET to remove all marks.
2986 With prefix arg, query for each marked file.
2989 (save-excursion
2990 (let* ((count 0)
2991 buffer-read-only case-fold-search query
2993 (help-form "\
2994 Type SPC or `y' to unmark one file, DEL or `n' to skip to next,
2995 `!' to unmark all remaining files with no more questions."))
2996 (goto-char (point-min))
2998 (re-search-forward dired-re-mark nil t)
2999 (search-forward string nil t))
3000 (if (or (not arg)
3001 (let ((file (dired-get-filename t t)))
3002 (and file
3003 (dired-query 'query "Unmark file `%s'? "
3004 file))))
3005 (progn (subst-char-in-region (1- (point)) (point)
3006 (preceding-char) ?\s)
3007 (setq count (1+ count)))))
3008 (message (if (= count 1) "1 mark removed"
3009 "%d marks removed")
3010 count))))
3011 \f
3012 ;; Logging failures operating on files, and showing the results.
3014 (defvar dired-log-buffer "*Dired log*")
3016 (defun dired-why ()
3017 "Pop up a buffer with error log output from Dired.
3018 A group of errors from a single command ends with a formfeed.
3020 (interactive)
3021 (if (get-buffer dired-log-buffer)
3022 (let ((owindow (selected-window))
3023 (window (display-buffer (get-buffer dired-log-buffer))))
3024 (unwind-protect
3025 (progn
3026 (select-window window)
3027 (goto-char (point-max))
3028 (forward-line -1)
3029 (backward-page 1)
3030 (recenter 0))
3031 (select-window owindow)))))
3033 (defun dired-log (log &rest args)
3034 ;; Log a message or the contents of a buffer.
3035 ;; If LOG is a string and there are more args, it is formatted with
3037 ;; End each bunch of errors with (dired-log t):
3038 ;; this inserts the current time and buffer at the start of the page,
3040 (let ((obuf (current-buffer)))
3041 (with-current-buffer (get-buffer-create dired-log-buffer)
3042 (goto-char (point-max))
3043 (let ((inhibit-read-only t))
3044 (cond ((stringp log)
3045 (insert (if args
3046 (apply (function format) log args)
3047 log)))
3048 ((bufferp log)
3049 (insert-buffer-substring log))
3050 ((eq t log)
3051 (backward-page 1)
3052 (unless (bolp)
3054 (insert (current-time-string)
3056 (goto-char (point-max))
3059 (defun dired-log-summary (string failures)
3060 "State a summary of a command's failures, in echo area and log buffer.
3061 STRING is an overall summary of the failures.
3062 FAILURES is a list of file names that we failed to operate on,
3063 or nil if file names are not applicable."
3064 (if (= (length failures) 1)
3065 (message "%s"
3066 (with-current-buffer dired-log-buffer
3067 (goto-char (point-max))
3068 (backward-page 1)
3069 (if (eolp) (forward-line 1))
3070 (buffer-substring (point) (point-max))))
3071 (message (if failures "%s--type ? for details (%s)"
3072 "%s--type ? for details")
3073 string failures))
3074 ;; Log a summary describing a bunch of errors.
3076 (dired-log t))
3077 \f
3078 ;;; Sorting
3080 ;; Most ls can only sort by name or by date (with -t), nothing else.
3081 ;; GNU ls sorts on size with -S, on extension with -X, and unsorted with -U.
3082 ;; So anything that does not contain these is sort "by name".
3084 (defvar dired-ls-sorting-switches "SXU"
3087 This indicates to Dired which option switches to watch out for because they
3088 will change the sorting order behavior of `ls'.
3090 To change the default sorting order \(e.g. add a `-v' option\), see the
3091 variable `dired-listing-switches'. To temporarily override the listing
3094 (defvar dired-sort-by-date-regexp
3095 (concat "^-[^" dired-ls-sorting-switches
3096 "]*t[^" dired-ls-sorting-switches "]*$")
3097 "Regexp recognized by Dired to set `by date' mode.")
3099 (defvar dired-sort-by-name-regexp
3100 (concat "^-[^t" dired-ls-sorting-switches "]+$")
3101 "Regexp recognized by Dired to set `by name' mode.")
3103 (defvar dired-sort-inhibit nil
3104 "Non-nil means the Dired sort command is disabled.
3105 The idea is to set this buffer-locally in special dired buffers.")
3107 (defun dired-sort-set-modeline ()
3108 ;; Set modeline display according to dired-actual-switches.
3109 ;; Modeline display of "by name" or "by date" guarantees the user a
3110 ;; match with the corresponding regexps. Non-matching switches are
3111 ;; shown literally.
3112 (when (eq major-mode 'dired-mode)
3113 (setq mode-name
3114 (let (case-fold-search)
3115 (cond ((string-match
3116 dired-sort-by-name-regexp dired-actual-switches)
3117 "Dired by name")
3118 ((string-match
3119 dired-sort-by-date-regexp dired-actual-switches)
3120 "Dired by date")
3121 (t
3122 (concat "Dired " dired-actual-switches)))))
3123 (force-mode-line-update)))
3125 (defun dired-sort-toggle-or-edit (&optional arg)
3126 "Toggle between sort by date/name and refresh the dired buffer.
3127 With a prefix argument you can edit the current listing switches instead."
3128 (interactive "P")
3129 (when dired-sort-inhibit
3130 (error "Cannot sort this dired buffer"))
3131 (if arg
3132 (dired-sort-other
3133 (read-string "ls switches (must contain -l): " dired-actual-switches))
3134 (dired-sort-toggle)))
3136 (defun dired-sort-toggle ()
3137 ;; Toggle between sort by date/name. Reverts the buffer.
3138 (setq dired-actual-switches
3139 (let (case-fold-search)
3140 (if (string-match " " dired-actual-switches)
3141 ;; New toggle scheme: add/remove a trailing " -t"
3143 (substring dired-actual-switches 0 (match-beginning 0))
3144 (concat dired-actual-switches " -t"))
3145 ;; old toggle scheme: look for some 't' switch and add/remove it
3146 (concat
3147 "-l"
3148 (dired-replace-in-string (concat "[-lt"
3149 dired-ls-sorting-switches "]")
3150 ""
3151 dired-actual-switches)
3152 (if (string-match (concat "[t" dired-ls-sorting-switches "]")
3153 dired-actual-switches)
3154 ""
3155 "t")))))
3156 (dired-sort-set-modeline)
3157 (revert-buffer))
3159 ;; Some user code loads dired especially for this.
3160 ;; Don't do that--use replace-regexp-in-string instead.
3161 (defun dired-replace-in-string (regexp newtext string)
3162 ;; Replace REGEXP with NEWTEXT everywhere in STRING and return result.
3164 (let ((result "") (start 0) mb me)
3165 (while (string-match regexp string start)
3166 (setq mb (match-beginning 0)
3167 me (match-end 0)
3168 result (concat result (substring string start mb) newtext)
3169 start me))
3170 (concat result (substring string start))))
3172 (defun dired-sort-other (switches &optional no-revert)
3173 "Specify new `ls' SWITCHES for current dired buffer.
3174 Values matching `dired-sort-by-date-regexp' or `dired-sort-by-name-regexp'
3175 set the minor mode accordingly, others appear literally in the mode line.
3176 With optional second arg NO-REVERT, don't refresh the listing afterwards."
3177 (dired-sort-R-check switches)
3178 (setq dired-actual-switches switches)
3179 (dired-sort-set-modeline)
3180 (or no-revert (revert-buffer)))
3182 (defvar dired-subdir-alist-pre-R nil
3183 "Value of `dired-subdir-alist' before -R switch added.")
3184 (make-variable-buffer-local 'dired-subdir-alist-pre-R)
3186 (defun dired-sort-R-check (switches)
3187 "Additional processing of -R in ls option string SWITCHES.
3188 Saves `dired-subdir-alist' when R is set and restores saved value
3189 minus any directories explicitly deleted when R is cleared.
3190 To be called first in body of `dired-sort-other', etc."
3191 (cond
3192 ((and (string-match "R" switches)
3193 (not (string-match "R" dired-actual-switches)))
3194 ;; Adding -R to ls switches -- save `dired-subdir-alist':
3195 (setq dired-subdir-alist-pre-R dired-subdir-alist))
3196 ((and (string-match "R" dired-actual-switches)
3197 (not (string-match "R" switches)))
3198 ;; Deleting -R from ls switches -- revert to pre-R subdirs
3199 ;; that are still present:
3200 (setq dired-subdir-alist
3201 (if dired-subdir-alist-pre-R
3202 (let (subdirs)
3203 (while dired-subdir-alist-pre-R
3204 (if (assoc (caar dired-subdir-alist-pre-R)
3205 dired-subdir-alist)
3206 ;; subdir still present...
3207 (setq subdirs
3208 (cons (car dired-subdir-alist-pre-R)
3209 subdirs)))
3210 (setq dired-subdir-alist-pre-R
3211 (cdr dired-subdir-alist-pre-R)))
3212 (reverse subdirs))
3213 ;; No pre-R subdir alist, so revert to main directory
3214 ;; listing:
3215 (list (car (reverse dired-subdir-alist))))))))
3216 \f
3218 ;;;; Drag and drop support
3220 (defcustom dired-recursive-copies 'top
3221 "*Decide whether recursive copies are allowed.
3222 A value of nil means no recursive copies.
3223 `always' means copy recursively without asking.
3224 `top' means ask for each directory at top level.
3225 Anything else means ask for each directory."
3226 :type '(choice :tag "Copy directories"
3227 (const :tag "No recursive copies" nil)
3228 (const :tag "Ask for each directory" t)
3229 (const :tag "Ask for each top directory only" top)
3230 (const :tag "Copy directories without asking" always))
3231 :group 'dired)
3233 (defun dired-dnd-popup-notice ()
3234 (message-box
3238 (defun dired-dnd-do-ask-action (uri)
3239 ;; No need to get actions and descriptions from the source,
3240 ;; we only have three actions anyway.
3241 (let ((action (x-popup-menu
3242 t
3243 (list "What action?"
3244 (cons ""
3245 '(("Copy here" . copy)
3246 ("Move here" . move)
3247 ("Link here" . link)
3248 "--"
3249 ("Cancel" . nil)))))))
3250 (if action
3251 (dired-dnd-handle-local-file uri action)
3252 nil)))
3254 (defun dired-dnd-handle-local-file (uri action)
3255 "Copy, move or link a file to the dired directory.
3256 URI is the file to handle, ACTION is one of copy, move, link or ask.
3257 Ask means pop up a menu for the user to select one of copy, move or link."
3258 (require 'dired-aux)
3259 (let* ((from (dnd-get-local-file-name uri t))
3260 (to (if from (concat (dired-current-directory)
3261 (file-name-nondirectory from))
3262 nil)))
3263 (if from
3264 (cond ((or (eq action 'copy)
3265 (eq action 'private)) ; Treat private as copy.
3267 ;; If copying a directory and dired-recursive-copies is nil,
3268 ;; dired-copy-file silently fails. Pop up a notice.
3269 (if (and (file-directory-p from)
3270 (not dired-recursive-copies))
3271 (dired-dnd-popup-notice)
3272 (progn
3273 (dired-copy-file from to 1)
3274 (dired-relist-entry to)
3275 action)))
3277 ((eq action 'move)
3278 (dired-rename-file from to 1)
3279 (dired-relist-entry to)
3280 action)
3282 ((eq action 'link)
3283 (make-symbolic-link from to 1)
3284 (dired-relist-entry to)
3285 action)
3287 ((eq action 'ask)
3288 (dired-dnd-do-ask-action uri))
3290 (t nil)))))
3292 (defun dired-dnd-handle-file (uri action)
3293 "Copy, move or link a file to the dired directory if it is a local file.
3294 URI is the file to handle. If the hostname in the URI isn't local, do nothing.
3295 ACTION is one of copy, move, link or ask.
3296 Ask means pop up a menu for the user to select one of copy, move or link."
3297 (let ((local-file (dnd-get-local-file-uri uri)))
3298 (if local-file (dired-dnd-handle-local-file local-file action)
3299 nil)))
3300 \f
3302 ;;;; Desktop support
3304 (eval-when-compile (require 'desktop))
3306 (defun dired-desktop-buffer-misc-data (desktop-dirname)
3307 "Auxiliary information to be saved in desktop file."
3308 (cons
3309 ;; Value of `dired-directory'.
3310 (if (consp dired-directory)
3311 ;; Directory name followed by list of files.
3312 (cons (desktop-file-name (car dired-directory) desktop-dirname)
3313 (cdr dired-directory))
3314 ;; Directory name, optionally with shell wildcard.
3315 (desktop-file-name dired-directory desktop-dirname))
3316 ;; Subdirectories in `dired-subdir-alist'.
3317 (cdr
3318 (nreverse
3319 (mapcar
3320 (function (lambda (f) (desktop-file-name (car f) desktop-dirname)))
3321 dired-subdir-alist)))))
3323 (defun dired-restore-desktop-buffer (desktop-buffer-file-name
3324 desktop-buffer-name
3325 desktop-buffer-misc)
3326 "Restore a dired buffer specified in a desktop file."
3327 ;; First element of `desktop-buffer-misc' is the value of `dired-directory'.
3328 ;; This value is a directory name, optionally with shell wildcard or
3329 ;; a directory name followed by list of files.
3330 (let* ((dired-dir (car desktop-buffer-misc))
3331 (dir (if (consp dired-dir) (car dired-dir) dired-dir)))
3332 (if (file-directory-p (file-name-directory dir))
3333 (progn
3334 (dired dired-dir)
3335 ;; The following elements of `desktop-buffer-misc' are the keys
3336 ;; from `dired-subdir-alist'.
3337 (mapcar 'dired-maybe-insert-subdir (cdr desktop-buffer-misc))
3338 (current-buffer))
3339 (message "Desktop: Directory %s no longer exists." dir)
3340 (when desktop-missing-file-warning (sit-for 1))
3341 nil)))
3343 (add-to-list 'desktop-buffer-mode-handlers
3344 '(dired-mode . dired-restore-desktop-buffer))
3346 \f
3347 (if (eq system-type 'vax-vms)
3348 (load "dired-vms"))
3350 (provide 'dired)
3352 (run-hooks 'dired-load-hook) ; for your customizations
3354 ;; arch-tag: e1af7a8f-691c-41a0-aac1-ddd4d3c87517
3355 ;;; dired.el ends here