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comparison lisp/dired/dired-x.el @ 70:131b0175ea99 r20-0b30
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1 ;;; dired-x.el --- Sebastian Kremer's Extra DIRED hacked up for GNU Emacs19 | |
2 ;; Keywords: dired extensions | |
3 | |
4 (defconst dired-extra-version (substring "!Revision: 1.191 !" 11 -2) | |
5 "Id: dired-x.el,v 1.191 1992/05/14 11:41:54 sk RelBeta ") | |
6 | |
7 ;; Copyright (C) 1991 Sebastian Kremer. | |
8 | |
9 ;; This file is part of XEmacs. | |
10 | |
11 ;; XEmacs is free software; you can redistribute it and/or modify it | |
12 ;; under the terms of the GNU General Public License as published by | |
13 ;; the Free Software Foundation; either version 2, or (at your option) | |
14 ;; any later version. | |
15 | |
16 ;; XEmacs is distributed in the hope that it will be useful, but | |
17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 ;; General Public License for more details. | |
20 | |
21 ;; You should have received a copy of the GNU General Public License | |
22 ;; along with XEmacs; see the file COPYING. If not, write to the | |
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 ;; Boston, MA 02111-1307, USA. | |
25 | |
26 ;; LISPDIR ENTRY for the Elisp Archive =============================== | |
27 ;; LCD Archive Entry: | |
28 ;; dired-x|Sebastian Kremer|sk@thp.uni-koeln.de | |
29 ;; |Extra Features for Tree Dired | |
30 ;; |Date: 1992/05/14 11:41:54 |Revision: 1.191 | | |
31 | |
32 ;; INSTALLATION ====================================================== | |
33 | |
34 ;; In your ~/.emacs, say | |
35 ;; | |
36 ;; (setq dired-load-hook '(lambda () (load "dired-x"))) | |
37 ;; | |
38 ;; At load time dired-x will install itself using the various other | |
39 ;; dired hooks. It will redefine some functions and bind dired keys. | |
40 ;; If gmhist is present, dired-x will take advantage of it. | |
41 | |
42 (require 'dired) ; we will redefine some functions | |
43 ; and also need some macros | |
44 | |
45 (provide 'dired-extra) ; but this file is "dired-x" | |
46 (provide 'dired-x) ; but this file is "dired-x" | |
47 | |
48 ;; Customization (see also defvars in other sections below) | |
49 | |
50 ;; user should define this as `nil' prior to loading dired-x in order that the | |
51 ;; compression/decompression material of emacs19 is not overwritten. | |
52 (defvar dired-mark-keys '("Z") | |
53 "*List of keys (strings) that insert themselves as file markers.") | |
54 | |
55 (defvar dired-dangerous-shell-command "^rm" ; e.g. "rm" or "rmdir" | |
56 "*Regexp for dangerous shell commands that should never be the default.") | |
57 | |
58 ;; Add key bindings. This file is supposed to be loaded immediately | |
59 ;; after dired, inside dired-load-hook. | |
60 | |
61 (define-key dired-mode-map "V" 'dired-vm) | |
62 (define-key dired-mode-map "\(" 'dired-set-marker-char) | |
63 (define-key dired-mode-map "\)" 'dired-restore-marker-char) | |
64 (define-key dired-mode-map "I" 'dired-do-insert-subdir) | |
65 ;;(define-key dired-mode-map "\M-f" 'dired-flag-extension) | |
66 (define-key dired-mode-map "\M-M" 'dired-do-unmark) | |
67 (define-key dired-mode-map "\M-o" 'dired-omit-toggle) | |
68 (define-key dired-mode-map "\M-(" 'dired-mark-sexp) | |
69 (define-key dired-mode-map "," 'dired-mark-rcs-files) | |
70 (define-key dired-mode-map "\M-!" 'dired-smart-shell-command) | |
71 (define-key dired-mode-map "\M-&" 'dired-smart-background-shell-command) | |
72 (define-key dired-mode-map "T" 'dired-do-toggle) | |
73 (define-key dired-mode-map "w" 'dired-copy-filename-as-kill) | |
74 (define-key dired-mode-map "\M-g" 'dired-goto-file) | |
75 (define-key dired-mode-map "\M-G" 'dired-goto-subdir) | |
76 (define-key dired-mode-map "&" 'dired-do-background-shell-command) | |
77 (define-key dired-mode-map "A" 'dired-do-byte-compile-and-load) | |
78 (define-key dired-mode-map "F" 'dired-do-find-file) | |
79 (define-key dired-mode-map "S" 'dired-do-relsymlink) | |
80 (define-key dired-mode-map "%S" 'dired-do-relsymlink-regexp) | |
81 | |
82 (mapcar (function;; do this last to override bindings above | |
83 (lambda (x) | |
84 (define-key dired-mode-map x 'dired-mark-with-this-char))) | |
85 dired-mark-keys) | |
86 | |
87 ;; Install ourselves into the appropriate hooks | |
88 | |
89 (defun dired-add-hook (hook-var function) | |
90 "Add a function to a hook. | |
91 First argument HOOK-VAR (a symbol) is the name of a hook, second | |
92 argument FUNCTION is the function to add. | |
93 Returns nil if FUNCTION was already present in HOOK-VAR, else new | |
94 value of HOOK-VAR." | |
95 (interactive "SAdd to hook-var (symbol): \naAdd which function to %s? ") | |
96 (if (not (boundp hook-var)) (set hook-var nil)) | |
97 (if (or (not (listp (symbol-value hook-var))) | |
98 (eq (car (symbol-value hook-var)) 'lambda)) | |
99 (set hook-var (list (symbol-value hook-var)))) | |
100 (if (memq function (symbol-value hook-var)) | |
101 nil | |
102 (set hook-var (cons function (symbol-value hook-var))))) | |
103 | |
104 (dired-add-hook 'dired-mode-hook 'dired-extra-startup) | |
105 (dired-add-hook 'dired-after-readin-hook 'dired-omit-expunge) | |
106 | |
107 (defvar dired-default-marker dired-marker-char | |
108 "*The value of `dired-marker-char' in effect before dired-x was | |
109 loaded and the value which is restored if the marker stack underflows. | |
110 This is usually the asterisk `*'.") | |
111 | |
112 ;;;###autoload | |
113 (defun dired-extra-startup () | |
114 "Automatically put on dired-mode-hook to get extra dired features: | |
115 \\<dired-mode-map> | |
116 \\[dired-vm]\t-- VM on folder | |
117 \\[dired-rmail]\t-- Rmail on folder | |
118 \\[dired-do-insert-subdir]\t-- insert all marked subdirs | |
119 \\[dired-do-find-file]\t-- visit all marked files simultaneously | |
120 \\[dired-set-marker-char], \\[dired-restore-marker-char]\t-- change and display dired-marker-char dynamically. | |
121 \\[dired-omit-toggle]\t-- toggle omitting of files | |
122 \\[dired-mark-sexp]\t-- mark by lisp expression | |
123 \\[dired-do-unmark]\t-- replace existing marker with another. | |
124 \\[dired-mark-rcs-files]\t-- mark all RCS controlled files | |
125 \\[dired-mark-files-compilation-buffer]\t-- mark compilation files | |
126 \\[dired-copy-filename-as-kill]\t-- copy the file or subdir names into the kill ring. | |
127 \t You can feed it to other commands using \\[yank]. | |
128 | |
129 For more features, see variables | |
130 | |
131 dired-omit-files | |
132 dired-omit-extenstions | |
133 dired-dangerous-shell-command | |
134 dired-mark-keys | |
135 dired-local-variables-file | |
136 dired-find-subdir | |
137 dired-guess-have-gnutar | |
138 dired-auto-shell-command-alist | |
139 | |
140 See also functions | |
141 | |
142 dired-sort-on-size | |
143 dired-do-relsymlink | |
144 dired-flag-extension | |
145 dired-virtual | |
146 dired-jump-back | |
147 dired-jump-back-other-window | |
148 " | |
149 (interactive) | |
150 ;; This must be done in each new dired buffer: | |
151 (dired-hack-local-variables) | |
152 (dired-omit-startup) | |
153 (dired-marker-stack-startup)) | |
154 | |
155 ;;; Handle customization | |
156 | |
157 (or (fboundp 'read-with-history-in) ; it's loaded | |
158 (not (subrp (symbol-function 'read-from-minibuffer))) ; it's 19.4L | |
159 ;; else try to load gmhist | |
160 (load "gmhist" t)) | |
161 | |
162 (if (not (fboundp 'read-with-history-in)) | |
163 | |
164 nil ; Gmhist is not available | |
165 | |
166 ;; Else use generic minibuffer history | |
167 (put 'dired-shell-command-history 'dangerous dired-dangerous-shell-command) | |
168 | |
169 ;; Redefinition - when this is loaded, dired.el has alreay been loaded. | |
170 | |
171 (defun dired-read-regexp (prompt &optional initial) | |
172 (setq dired-flagging-regexp | |
173 (if (null initial) | |
174 (read-with-history-in 'regexp-history prompt initial) | |
175 (put 'regexp-history 'default | |
176 nil) | |
177 (put 'regexp-history 'default | |
178 (read-with-history-in 'regexp-history prompt initial))))) | |
179 | |
180 (defun dired-read-dir-and-switches (str) | |
181 (nreverse | |
182 (list | |
183 (if current-prefix-arg | |
184 (read-string "Dired listing switches: " dired-listing-switches)) | |
185 (read-file-name-with-history-in | |
186 'file-history ; or 'dired-history? | |
187 (format "Dired %s(directory): " str) nil default-directory nil)))) | |
188 ) | |
189 | |
190 | |
191 | |
192 ;;; Dynamic Markers | |
193 | |
194 (defun dired-mark-with-this-char (arg) | |
195 "Mark the current file or subdir with the last key you pressed to invoke | |
196 this command. Else like \\[dired-mark-subdir-or-file] command." | |
197 (interactive "p") | |
198 (let ((dired-marker-char;; use last character, in case of prefix cmd | |
199 last-command-char)) | |
200 (dired-mark-subdir-or-file arg))) | |
201 | |
202 (defvar dired-marker-stack nil | |
203 "List of previously used dired marker characters.") | |
204 | |
205 (defvar dired-marker-string "" | |
206 "String version of `dired-marker-stack'.") | |
207 | |
208 (defun dired-current-marker-string () | |
209 "Computes and returns `dired-marker-string'." | |
210 (setq dired-marker-string | |
211 (concat " " | |
212 (mapconcat (function char-to-string) | |
213 (reverse dired-marker-stack) | |
214 "")))) | |
215 | |
216 (defun dired-marker-stack-startup () | |
217 (make-local-variable 'dired-marker-char) | |
218 (make-local-variable 'dired-del-marker) | |
219 (make-local-variable 'dired-marker-stack) | |
220 (or (assq 'dired-marker-stack minor-mode-alist) | |
221 (setq minor-mode-alist | |
222 (cons '(dired-marker-stack dired-marker-string) | |
223 minor-mode-alist)))) | |
224 | |
225 (defun dired-set-marker-char (c) | |
226 "Set the marker character to something else. | |
227 Use \\[dired-restore-marker-char] to restore the previous value." | |
228 (interactive "cNew marker character: ") | |
229 (setq dired-marker-stack (cons c dired-marker-stack)) | |
230 (dired-current-marker-string) | |
231 (setq dired-marker-char c) | |
232 (set-buffer-modified-p (buffer-modified-p)) ; update mode line | |
233 (message "New marker is %c" dired-marker-char)) | |
234 | |
235 (defun dired-restore-marker-char () | |
236 "Restore the marker character to its previous value. | |
237 Uses `dired-default-marker' if the marker stack is empty." | |
238 (interactive) | |
239 (setq dired-marker-stack (cdr dired-marker-stack) | |
240 dired-marker-char (car dired-marker-stack)) | |
241 (dired-current-marker-string) | |
242 (set-buffer-modified-p (buffer-modified-p)) ; update mode line | |
243 (or dired-marker-char (setq dired-marker-char dired-default-marker)) | |
244 (message "Marker is %c" dired-marker-char)) | |
245 | |
246 ;;; Sort on Size kludge if your ls can't do it | |
247 | |
248 (defun dired-sort-on-size () | |
249 "Sorts a dired listing on file size. | |
250 If your ls cannot sort on size, this is useful as `dired-after-readin-hook': | |
251 \(setq dired-after-readin-hook 'dired-sort-on-size\)" | |
252 (require 'sort) | |
253 (goto-char (point-min)) | |
254 (dired-goto-next-file) ; skip `total' line | |
255 (beginning-of-line) | |
256 (sort-subr t ; biggest file first | |
257 'forward-line 'end-of-line 'dired-get-file-size)) | |
258 | |
259 (defun dired-get-file-size () | |
260 (re-search-forward "\\(Jan\\|Feb\\|Mar\\|Apr\\|May\\|Jun\\|Jul\\|Aug\\|Sep\\|Oct\\|Nov\\|Dec\\)") | |
261 (goto-char (match-beginning 1)) | |
262 (forward-char -1) | |
263 (string-to-int (buffer-substring (save-excursion | |
264 (backward-word 1) | |
265 (point)) | |
266 (point)))) | |
267 | |
268 | |
269 ;;; Misc. (mostly featurismic) commands | |
270 | |
271 ;; Mail folders | |
272 | |
273 (defvar dired-vm-read-only-folders nil | |
274 "*If t, \\[dired-vm] will visit all folders read-only. | |
275 If neither nil nor t, e.g. the symbol `if-file-read-only', only | |
276 files not writable by you are visited read-only. | |
277 | |
278 Read-only folders only work in VM 5, not in VM 4.") | |
279 | |
280 (defun dired-vm (&optional read-only) | |
281 "Run VM on this file. | |
282 With prefix arg, visit folder read-only (this requires at least VM 5). | |
283 See also variable `dired-vm-read-only-folders'." | |
284 (interactive "P") | |
285 (let ((dir (dired-current-directory)) | |
286 (fil (dired-get-filename))) | |
287 ;; take care to supply 2nd arg only if requested - may still run VM 4! | |
288 (cond (read-only (vm-visit-folder fil t)) | |
289 ((eq t dired-vm-read-only-folders) (vm-visit-folder fil t)) | |
290 ((null dired-vm-read-only-folders) (vm-visit-folder fil)) | |
291 (t (vm-visit-folder fil (not (file-writable-p fil))))) | |
292 ;; so that pressing `v' inside VM does prompt within current directory: | |
293 (set (make-local-variable 'vm-folder-directory) dir))) | |
294 | |
295 (defun dired-rmail () | |
296 "Run RMAIL on this file." | |
297 (interactive) | |
298 (rmail (dired-get-filename))) | |
299 | |
300 ;; More subdir operations | |
301 | |
302 (defun dired-do-insert-subdir () | |
303 "Insert all marked subdirectories in situ that are not yet inserted. | |
304 Non-directories are silently ignored." | |
305 (interactive) | |
306 (let ((files (or (dired-mark-get-files) | |
307 (error "No files marked.")))) | |
308 (while files | |
309 (if (file-directory-p (car files)) | |
310 (save-excursion (dired-maybe-insert-subdir (car files)))) | |
311 (setq files (cdr files))))) | |
312 | |
313 (defun dired-mark-extension (extension &optional marker-char) | |
314 "Mark all files with a certain extension for use in later commands. | |
315 A `.' is not automatically prepended to the string entered." | |
316 ;; EXTENSION may also be a list of extensions instead of a single one. | |
317 ;; Optional MARKER-CHAR is marker to use. | |
318 (interactive "sMarking extension: \nP") | |
319 (or (listp extension) | |
320 (setq extension (list extension))) | |
321 (dired-mark-files-regexp | |
322 (concat ".";; don't match names with nothing but an extension | |
323 "\\(" | |
324 (mapconcat 'regexp-quote extension "\\|") | |
325 "\\)$") | |
326 marker-char)) | |
327 | |
328 (defun dired-flag-extension (extension) | |
329 "In dired, flag all files with a certain extension for deletion. | |
330 A `.' is *not* automatically prepended to the string entered." | |
331 (interactive "sFlagging extension: ") | |
332 (dired-mark-extension extension dired-del-marker)) | |
333 | |
334 (defvar patch-unclean-extensions | |
335 '(".rej" ".orig") | |
336 "List of extensions of dispensable files created by the `patch' program.") | |
337 | |
338 (defvar tex-unclean-extensions | |
339 '(".toc" ".log" ".aux");; these are already in completion-ignored-extensions | |
340 "List of extensions of dispensable files created by TeX.") | |
341 | |
342 (defvar latex-unclean-extensions | |
343 '(".idx" ".lof" ".lot" ".glo") | |
344 "List of extensions of dispensable files created by LaTeX.") | |
345 | |
346 (defvar bibtex-unclean-extensions | |
347 '(".blg" ".bbl") | |
348 "List of extensions of dispensable files created by BibTeX.") | |
349 | |
350 (defvar texinfo-unclean-extensions | |
351 '(".cp" ".cps" ".fn" ".fns" ".ky" ".kys" ".pg" ".pgs" | |
352 ".tp" ".tps" ".vr" ".vrs") | |
353 "List of extensions of dispensable files created by texinfo.") | |
354 | |
355 (defun dired-clean-patch () | |
356 "Flag dispensable files created by patch for deletion. | |
357 See variable `patch-unclean-extensions'." | |
358 (interactive) | |
359 (dired-flag-extension patch-unclean-extensions)) | |
360 | |
361 (defun dired-clean-tex () | |
362 "Flag dispensable files created by tex etc. for deletion. | |
363 See variable `texinfo-unclean-extensions', `latex-unclean-extensions', | |
364 `bibtex-unclean-extensions' and `texinfo-unclean-extensions'." | |
365 (interactive) | |
366 (dired-flag-extension (append texinfo-unclean-extensions | |
367 latex-unclean-extensions | |
368 bibtex-unclean-extensions | |
369 tex-unclean-extensions))) | |
370 | |
371 (defun dired-do-unmark (unmarker) | |
372 "Unmark marked files by replacing the marker with another character. | |
373 The new character defaults to a space, effectively unmarking them." | |
374 (interactive "sChange marker to: ") | |
375 (if (string= unmarker "") | |
376 (setq unmarker " ")) | |
377 (setq unmarker (substring unmarker 0 1)) | |
378 (let ((regexp (dired-marker-regexp)) | |
379 (buffer-read-only nil)) | |
380 (save-excursion | |
381 (goto-char (point-min)) | |
382 (while (re-search-forward regexp nil t) | |
383 (replace-match unmarker))))) | |
384 | |
385 ;; This is unused but might come in handy sometime | |
386 ;(defun dired-directories-of (files) | |
387 ; ;; Return unique list of parent directories of FILES. | |
388 ; (let (dirs dir file) | |
389 ; (while files | |
390 ; (setq file (car files) | |
391 ; files (cdr files) | |
392 ; dir (file-name-directory file)) | |
393 ; (or (member dir dirs) | |
394 ; (setq dirs (cons dir dirs)))) | |
395 ; dirs)) | |
396 | |
397 ;; Adapted from code by wurgler@zippysun.math.uakron.edu (Tom Wurgler). | |
398 ;; Suggest you bind it to a key. I use C-x C-j. | |
399 (defun dired-jump-back (&optional other-window) | |
400 "Jump back to dired: | |
401 If in a file, dired the current directory and move to file's line. | |
402 If in dired already, pop up a level and goto old directory's line. | |
403 In case the proper dired file line cannot be found, refresh the dired | |
404 buffer and try again." | |
405 (interactive) | |
406 (let* ((file buffer-file-name) | |
407 (dir (if file (file-name-directory file) default-directory))) | |
408 (if (eq major-mode 'dired-mode) | |
409 (progn | |
410 (setq dir (dired-current-directory)) | |
411 (if other-window | |
412 (dired-up-directory-other-window) | |
413 (dired-up-directory)) | |
414 (dired-really-goto-file dir)) | |
415 (if other-window | |
416 (dired-other-window dir) | |
417 (dired dir)) | |
418 (if file (dired-really-goto-file file))))) | |
419 | |
420 (defun dired-jump-back-other-window () | |
421 "Like \\[dired-jump-back], but to other window." | |
422 (interactive) | |
423 (dired-jump-back t)) | |
424 | |
425 (defun dired-really-goto-file (file) | |
426 (or (dired-goto-file file) | |
427 (progn ; refresh and try again | |
428 (dired-insert-subdir (file-name-directory file)) | |
429 (dired-goto-file file)))) | |
430 | |
431 (defun dired-up-directory-other-window () | |
432 "Like `dired-up-directory', but in other window." | |
433 (interactive) | |
434 (let* ((dir (dired-current-directory)) | |
435 (up (file-name-directory (directory-file-name dir)))) | |
436 (or (dired-goto-file (directory-file-name dir)) | |
437 (dired-goto-subdir up) | |
438 ;; Only in this case it really uses another window: | |
439 (progn | |
440 (dired-other-window up) | |
441 (dired-goto-file dir))))) | |
442 | |
443 (defun dired-mark-rcs-files (&optional unflag-p) | |
444 "Mark all files that are under RCS control. | |
445 With prefix argument, unflag all those files. | |
446 Mentions RCS files for which a working file was not found in this buffer. | |
447 Type \\[dired-why] to see them again." | |
448 ;; Returns failures, or nil on success. | |
449 ;; Finding those with locks would require to peek into the ,v file, | |
450 ;; depends slightly on the RCS version used and should be done | |
451 ;; together with the Emacs RCS interface. | |
452 ;; Unfortunately, there is no definitive RCS interface yet. | |
453 (interactive "P") | |
454 (message "%sarking RCS controlled files..." (if unflag-p "Unm" "M")) | |
455 (let ((dired-marker-char (if unflag-p ?\ dired-marker-char)) | |
456 rcs-files wf failures count total) | |
457 (mapcar ; loop over subdirs | |
458 (function | |
459 (lambda (dir) | |
460 (or (equal (file-name-nondirectory (directory-file-name dir)) | |
461 "RCS") | |
462 ;; skip inserted RCS subdirs | |
463 (setq rcs-files | |
464 (append (directory-files dir t ",v$") ; *,v and RCS/*,v | |
465 (let ((rcs-dir (expand-file-name "RCS" dir))) | |
466 (if (file-directory-p rcs-dir) | |
467 (mapcar ; working files from ./RCS are in ./ | |
468 (function | |
469 (lambda (x) | |
470 (expand-file-name x dir))) | |
471 (directory-files | |
472 (file-name-as-directory rcs-dir) nil ",v$")))) | |
473 rcs-files))))) | |
474 (mapcar (function car) dired-subdir-alist)) | |
475 (setq total (length rcs-files)) | |
476 (while rcs-files | |
477 (setq wf (substring (car rcs-files) 0 -2) | |
478 rcs-files (cdr rcs-files)) | |
479 (save-excursion (if (dired-goto-file wf) | |
480 (dired-mark-file 1) | |
481 (setq failures (cons wf failures))))) | |
482 (if (null failures) | |
483 (message "%d RCS file%s %smarked." | |
484 total (dired-plural-s total) (if unflag-p "un" "")) | |
485 (setq count (length failures)) | |
486 (dired-log-summary "RCS working file not found %s" failures) | |
487 (message "%d RCS file%s: %d %smarked - %d not found %s." | |
488 total (dired-plural-s total) (- total count) | |
489 (if unflag-p "un" "") count failures)) | |
490 failures)) | |
491 | |
492 (defun dired-do-toggle () | |
493 "Toggle marks. | |
494 That is, currently marked files become unmarked and vice versa. | |
495 Files marked with other flags (such as `D') are not affected. | |
496 `.' and `..' are never toggled. | |
497 As always, hidden subdirs are not affected." | |
498 (interactive) | |
499 (save-excursion | |
500 (goto-char (point-min)) | |
501 (let (buffer-read-only) | |
502 (while (not (eobp)) | |
503 (or (dired-between-files) | |
504 (looking-at dired-re-dot) | |
505 ;; use subst instead of insdel because it does not move | |
506 ;; the gap and thus should be faster and because | |
507 ;; other characters are left alone automatically | |
508 (apply 'subst-char-in-region | |
509 (point) (1+ (point)) | |
510 (if (eq ?\040 (following-char)) ; SPC | |
511 (list ?\040 dired-marker-char) | |
512 (list dired-marker-char ?\040)))) | |
513 (forward-line 1))))) | |
514 | |
515 ;; This function is missing in simple.el | |
516 (defun copy-string-as-kill (string) | |
517 "Save STRING as if killed in a buffer." | |
518 (setq kill-ring (cons string kill-ring)) | |
519 (if (> (length kill-ring) kill-ring-max) | |
520 (setcdr (nthcdr (1- kill-ring-max) kill-ring) nil)) | |
521 (setq kill-ring-yank-pointer kill-ring)) | |
522 | |
523 (defvar dired-marked-files nil | |
524 "List of filenames from last `dired-copy-filename-as-kill' call.") | |
525 | |
526 (defun dired-copy-filename-as-kill (&optional arg) | |
527 "Copy names of marked (or next ARG) files into the kill ring. | |
528 The names are separated by a space. | |
529 With a zero prefix arg, use the complete pathname of each marked file. | |
530 With a raw (just \\[universal-argument]) prefix arg, use the relative pathname of each marked file. | |
531 | |
532 If on a subdir headerline and no prefix arg given, use subdirname instead. | |
533 | |
534 You can then feed the file name to other commands with \\[yank]. | |
535 | |
536 The list of names is also stored onto the variable | |
537 `dired-marked-files' for use, e.g., in an `\\[eval-expression]' command." | |
538 (interactive "P") | |
539 (copy-string-as-kill | |
540 (or (and (not arg) | |
541 (dired-get-subdir)) | |
542 (mapconcat (function identity) | |
543 (setq dired-marked-files | |
544 (if arg | |
545 (cond ((zerop (prefix-numeric-value arg)) | |
546 (dired-mark-get-files)) | |
547 ((integerp arg) | |
548 (dired-mark-get-files 'no-dir arg)) | |
549 (t ; else a raw arg | |
550 (dired-mark-get-files t))) | |
551 (dired-mark-get-files 'no-dir))) | |
552 " "))) | |
553 (message "%s" (car kill-ring))) | |
554 | |
555 (defun dired-do-background-shell-command (&optional arg) | |
556 "Like \\[dired-do-shell-command], but starts command in background. | |
557 Note that you can type input to the command in its buffer. | |
558 This requires background.el from the comint package to work." | |
559 ;; With the version in emacs-19.el, you can alternatively just | |
560 ;; append an `&' to any shell command to make it run in the | |
561 ;; background, but you can't type input to it. | |
562 (interactive "P") | |
563 (dired-do-shell-command arg t)) | |
564 | |
565 ;; redefines dired.el to put back in the dired-offer-kill-buffer | |
566 ;; feature which rms didn't like. | |
567 (defun dired-clean-up-after-deletion (fn) | |
568 ;; Clean up after a deleted file or directory FN. | |
569 ;; Remove expanded subdir of deleted dir, if any | |
570 (save-excursion (and (dired-goto-subdir fn) | |
571 (dired-kill-subdir))) | |
572 ;; Offer to kill buffer of deleted file FN. | |
573 (let ((buf (get-file-buffer fn))) | |
574 (and buf | |
575 (funcall (function y-or-n-p) | |
576 (format "Kill buffer of %s, too? " | |
577 (file-name-nondirectory fn))) | |
578 (save-excursion;; you never know where kill-buffer leaves you | |
579 (kill-buffer buf)))) | |
580 (let ((buf-list (dired-buffers-for-top-dir fn)) | |
581 (buf nil)) | |
582 (and buf-list | |
583 (y-or-n-p (format "Kill dired buffer%s of %s, too? " | |
584 (dired-plural-s (length buf-list)) | |
585 (file-name-nondirectory fn))) | |
586 (while buf-list | |
587 (save-excursion (kill-buffer (car buf-list))) | |
588 (setq buf-list (cdr buf-list))))) | |
589 ;; Anything else? | |
590 ) | |
591 | |
592 ;;; Omitting | |
593 | |
594 ;;; Enhanced omitting of lines from directory listings. | |
595 ;;; Marked files are never omitted. | |
596 ;;; Adapted from code submitted by: | |
597 ;;; Michael D. Ernst, mernst@theory.lcs.mit.edu, 1/11/91 | |
598 | |
599 (make-variable-buffer-local | |
600 (defvar dired-omit-files-p nil | |
601 "*If non-nil, \"uninteresting\" files are not listed (buffer-local). | |
602 Use \\[dired-omit-toggle] to toggle its value. | |
603 Uninteresting files are those whose filenames match regexp `dired-omit-files', | |
604 plus those ending with extensions in `dired-omit-extensions'.")) | |
605 | |
606 (defvar dired-omit-files "^#\\|\\.$" | |
607 "*Filenames matching this regexp will not be displayed (buffer-local). | |
608 This only has effect when `dired-omit-files-p' is t. | |
609 See also `dired-omit-extensions'.") | |
610 | |
611 (defvar dired-omit-extensions | |
612 (append completion-ignored-extensions | |
613 latex-unclean-extensions | |
614 bibtex-unclean-extensions | |
615 texinfo-unclean-extensions) | |
616 "*If non-nil, a list of extensions (strings) to omit from Dired | |
617 listings. Defaults to the elements of | |
618 `completion-ignored-extensions', `latex-unclean-extensions', | |
619 `bibtex-unclean-extensions' and `texinfo-unclean-extensions'.") | |
620 | |
621 ;; should probably get rid of this and always use 'no-dir. | |
622 ;; sk 28-Aug-1991 09:37 | |
623 (defvar dired-omit-localp 'no-dir | |
624 "The LOCALP argument dired-omit-expunge passes to dired-get-filename. | |
625 If it is 'no-dir, omitting is much faster, but you can only match | |
626 against the basename of the file. Set it to nil if you need to match the | |
627 whole pathname.") | |
628 | |
629 ;; \017=^O for Omit - other packages can chose other control characters. | |
630 (defvar dired-omit-marker-char ?\017 | |
631 "Temporary marker used by dired-omit. | |
632 Should never be used as a marker by the user or other packages.") | |
633 | |
634 (defun dired-omit-startup () | |
635 (or (assq 'dired-omit-files-p minor-mode-alist) | |
636 ;; Append at end so that it doesn't get between "Dired" and "by name". | |
637 (setq minor-mode-alist | |
638 (append minor-mode-alist '((dired-omit-files-p " Omit")))))) | |
639 | |
640 (defun dired-omit-toggle (&optional flag) | |
641 "Toggle between displaying and omitting files matching `dired-omit-files'. | |
642 With an arg, and if omitting was off, don't toggle and just mark the | |
643 files but don't actually omit them. | |
644 With an arg, and if omitting was on, turn it off but don't refresh the buffer." | |
645 (interactive "P") | |
646 (if flag | |
647 (if dired-omit-files-p | |
648 (setq dired-omit-files-p (not dired-omit-files-p)) | |
649 (dired-mark-unmarked-files (dired-omit-regexp) nil nil | |
650 dired-omit-localp)) | |
651 ;; no FLAG | |
652 (setq dired-omit-files-p (not dired-omit-files-p)) | |
653 (if (not dired-omit-files-p) | |
654 (revert-buffer) | |
655 ;; this will mention how many were omitted: | |
656 (dired-omit-expunge)))) | |
657 | |
658 ;; This is sometimes let-bound to t if messages would be annoying, | |
659 ;; e.g., in dired-awrh.el. | |
660 (defvar dired-omit-silent nil) | |
661 | |
662 ;; in emacs19 `(dired-do-kill)' is called `(dired-do-kill-lines)' | |
663 (if (fboundp 'dired-do-kill-lines) | |
664 (fset 'dired-do-kill 'dired-do-kill-lines)) | |
665 | |
666 (defun dired-omit-expunge (&optional regexp) | |
667 "Erases all unmarked files matching REGEXP. | |
668 Does nothing if global variable `dired-omit-files-p' is nil. | |
669 If REGEXP is nil or not specified, uses `dired-omit-files', and also omits | |
670 filenames ending in `dired-omit-extensions'. | |
671 If REGEXP is the empty string, this function is a no-op. | |
672 | |
673 This functions works by temporarily binding `dired-marker-char' to | |
674 `dired-omit-marker-char' and calling `dired-do-kill'." | |
675 (interactive "sOmit files (regexp): ") | |
676 (if dired-omit-files-p | |
677 (let ((omit-re (or regexp (dired-omit-regexp))) | |
678 count) | |
679 (or (string= omit-re "") | |
680 (let ((dired-marker-char dired-omit-marker-char)) | |
681 (or dired-omit-silent (message "Omitting...")) | |
682 (if (dired-mark-unmarked-files | |
683 omit-re nil nil dired-omit-localp) | |
684 (setq count (dired-do-kill nil (if dired-omit-silent | |
685 "" | |
686 "Omitted %d line%s."))) | |
687 (or dired-omit-silent | |
688 (message "(Nothing to omit)"))))) | |
689 count))) | |
690 | |
691 (defun dired-omit-regexp () | |
692 (concat (if dired-omit-files (concat "\\(" dired-omit-files "\\)") "") | |
693 (if (and dired-omit-files dired-omit-extensions) "\\|" "") | |
694 (if dired-omit-extensions | |
695 (concat ".";; a non-extension part should exist | |
696 "\\(" | |
697 (mapconcat 'regexp-quote dired-omit-extensions "\\|") | |
698 "\\)$") | |
699 ""))) | |
700 | |
701 ;; Returns t if any work was done, nil otherwise. | |
702 (defun dired-mark-unmarked-files (regexp msg &optional unflag-p localp) | |
703 "Marks unmarked files matching REGEXP, displaying MSG. | |
704 REGEXP is matched against the complete pathname. | |
705 Does not re-mark files which already have a mark. | |
706 With prefix argument, unflag all those files. | |
707 Second optional argument LOCALP is as in `dired-get-filename'." | |
708 (interactive "P") | |
709 (let ((dired-marker-char (if unflag-p ?\ dired-marker-char))) | |
710 (dired-mark-if | |
711 (and | |
712 ;; not already marked | |
713 (looking-at " ") | |
714 ;; uninteresting | |
715 (let ((fn (dired-get-filename localp t))) | |
716 (and fn (string-match regexp fn)))) | |
717 msg))) | |
718 | |
719 (defun dired-omit-new-add-entry (filename &optional marker-char) | |
720 ;; This redefines dired.el's dired-add-entry to avoid calling ls for | |
721 ;; files that are going to be omitted anyway. | |
722 (if dired-omit-files-p | |
723 ;; perhaps return t without calling ls | |
724 (let ((omit-re (dired-omit-regexp))) | |
725 (if (or (string= omit-re "") | |
726 (not | |
727 (string-match omit-re | |
728 (cond | |
729 ((eq 'no-dir dired-omit-localp) | |
730 filename) | |
731 ((eq t dired-omit-localp) | |
732 (dired-make-relative filename)) | |
733 (t | |
734 (dired-make-absolute filename directory)))))) | |
735 ;; if it didn't match, go ahead and add the entry | |
736 (dired-omit-old-add-entry filename marker-char) | |
737 ;; dired-add-entry returns t for success, perhaps we should | |
738 ;; return file-exists-p | |
739 t)) | |
740 ;; omitting is not turned on at all | |
741 (dired-omit-old-add-entry filename marker-char))) | |
742 | |
743 ;; Save old defun if not already done: | |
744 (or (fboundp 'dired-omit-old-add-entry) | |
745 (fset 'dired-omit-old-add-entry (symbol-function 'dired-add-entry))) | |
746 ;; Redefine dired.el | |
747 (fset 'dired-add-entry 'dired-omit-new-add-entry) | |
748 | |
749 | |
750 ;; | |
751 (defun dired-mark-sexp (predicate &optional unflag-p) | |
752 "Mark files for which PREDICATE returns non-nil. | |
753 With a prefix arg, unflag those files instead. | |
754 | |
755 PREDICATE is a lisp expression that can refer to the following symbols: | |
756 | |
757 inode [integer] the inode of the file (only for ls -i output) | |
758 s [integer] the size of the file for ls -s output | |
759 (ususally in blocks or, with -k, in KByte) | |
760 mode [string] file permission bits, e.g. \"-rw-r--r--\" | |
761 nlink [integer] number of links to file | |
762 uid [string] owner | |
763 gid [string] group (If the gid is not displayed by ls, | |
764 this will still be set (to the same as uid)) | |
765 size [integer] file size in bytes | |
766 time [string] the time that ls displays, e.g. \"Feb 12 14:17\" | |
767 name [string] the name of the file | |
768 sym [string] if file is a symbolic link, the linked-to name, else \"\" | |
769 | |
770 For example, use | |
771 | |
772 (equal 0 size) | |
773 | |
774 to mark all zero length files." | |
775 ;; Using sym="" instead of nil avoids the trap of | |
776 ;; (string-match "foo" sym) into which a user would soon fall. | |
777 ;; Give `equal' instead of `=' in the example, as this works on | |
778 ;; integers and strings. | |
779 (interactive "xMark if (lisp expr): \nP") | |
780 (message "%s" predicate) | |
781 (let ((dired-marker-char (if unflag-p ?\040 dired-marker-char)) | |
782 inode s mode nlink uid gid size time name sym) | |
783 (dired-mark-if | |
784 (save-excursion (and (dired-parse-ls) | |
785 (eval predicate))) | |
786 (format "'%s file" predicate)) | |
787 ;; With Jamie's compiler we could do the following instead: | |
788 ; (eval (byte-compile-sexp | |
789 ; (macroexpand | |
790 ; (` (dired-mark-if | |
791 ; (save-excursion (and (dired-parse-ls) | |
792 ; (, predicate))) | |
793 ; (format "'%s file" (quote (, predicate)))))))) | |
794 ;; This isn't measurably faster, though, at least for simple predicates. | |
795 ;; Caching compiled predicates might be interesting if you use | |
796 ;; this command a lot or with complicated predicates. | |
797 ;; Alternatively compiling PREDICATE by hand should not be too | |
798 ;; hard - e.g., if it uses just one variable, not all of the ls | |
799 ;; line needs to be parsed. | |
800 )) | |
801 | |
802 (if (fboundp 'gmhist-make-magic) | |
803 (gmhist-make-magic 'dired-mark-sexp 'eval-expression-history)) | |
804 | |
805 (defun dired-parse-ls () | |
806 ;; Sets vars | |
807 ;; inode s mode nlink uid gid size time name sym | |
808 ;; (probably let-bound in caller) according to current file line. | |
809 ;; Returns t for succes, nil if this is no file line. | |
810 ;; Upon success, all variables are set, either to nil or the | |
811 ;; appropriate value, so they need not be initialized. | |
812 ;; Moves point within the current line. | |
813 (if (dired-move-to-filename) | |
814 (let (pos | |
815 (mode-len 10) ; length of mode string | |
816 ;; like in dired.el, but with subexpressions \1=inode, \2=s: | |
817 (dired-re-inode-size "\\s *\\([0-9]*\\)\\s *\\([0-9]*\\) ?")) | |
818 (beginning-of-line) | |
819 (forward-char 2) | |
820 (if (looking-at dired-re-inode-size) | |
821 (progn | |
822 (goto-char (match-end 0)) | |
823 (setq inode (string-to-int (buffer-substring (match-beginning 1) | |
824 (match-end 1))) | |
825 s (string-to-int (buffer-substring (match-beginning 2) | |
826 (match-end 2))))) | |
827 (setq inode nil | |
828 s nil)) | |
829 (setq mode (buffer-substring (point) (+ mode-len (point)))) | |
830 (forward-char mode-len) | |
831 (setq nlink (read (current-buffer))) | |
832 (setq uid (buffer-substring (point) (progn (forward-word 1) (point)))) | |
833 (re-search-forward "\\(Jan\\|Feb\\|Mar\\|Apr\\|May\\|Jun\\|Jul\\|Aug\\|Sep\\|Oct\\|Nov\\|Dec\\)") | |
834 (goto-char (match-beginning 1)) | |
835 (forward-char -1) | |
836 (setq size (string-to-int (buffer-substring (save-excursion | |
837 (backward-word 1) | |
838 (setq pos (point))) | |
839 (point)))) | |
840 (goto-char pos) | |
841 (backward-word 1) | |
842 ;; if no gid is displayed, gid will be set to uid | |
843 ;; but user will then not reference it anyway in PREDICATE. | |
844 (setq gid (buffer-substring (save-excursion (forward-word 1) (point)) | |
845 (point)) | |
846 time (buffer-substring (match-beginning 1) | |
847 (1- (dired-move-to-filename))) | |
848 name (buffer-substring (point) | |
849 (or (dired-move-to-end-of-filename t) | |
850 (point))) | |
851 sym (progn | |
852 (if (looking-at " -> ") | |
853 (buffer-substring (progn (forward-char 4) (point)) | |
854 (progn (end-of-line) (point))) | |
855 ""))) | |
856 t) | |
857 nil)) | |
858 | |
859 | |
860 ;; tester | |
861 ;;(defun dired-parse-ls-show () | |
862 ;; (interactive) | |
863 ;; (let (inode s mode size uid gid nlink time name sym) | |
864 ;; (if (dired-parse-ls) | |
865 ;; (message "%s" (list inode s mode nlink uid gid size time name sym)) | |
866 ;; (message "Not on a file line.")))) | |
867 | |
868 | |
869 ;; Mark files whose names appear in another buffer. | |
870 | |
871 (defun dired-mark-these-files (file-list from) | |
872 ;; Mark the files in FILE-LIST. Relative filenames are taken to be | |
873 ;; in the current dired directory. | |
874 ;; FROM is a string (used for logging) describing where FILE-LIST | |
875 ;; came from. | |
876 ;; Logs files that were not found and displays a success or failure | |
877 ;; message. | |
878 (message "Marking files %s..." from) | |
879 (let ((total (length file-list)) | |
880 (cur-dir (dired-current-directory)) | |
881 file failures) | |
882 (while file-list | |
883 (setq file (dired-make-absolute (car file-list) cur-dir) | |
884 file-list (cdr file-list)) | |
885 ;;(message "Marking file `%s'" file) | |
886 (save-excursion | |
887 (if (dired-goto-file file) | |
888 (dired-mark-file 1) | |
889 (setq failures (cons (dired-make-relative file) failures)) | |
890 (dired-log "Cannot mark this file (not found): %s\n" file)))) | |
891 (if failures | |
892 (dired-log-summary (message "Failed to mark %d of %d files %s %s" | |
893 (length failures) total from failures)) | |
894 (message "Marked %d file%s %s." total (dired-plural-s total) from)))) | |
895 | |
896 (defun dired-mark-files-from-other-dired-buffer (buf) | |
897 "Mark files that are marked in the other Dired buffer. | |
898 I.e, mark those files in this Dired buffer that have the same | |
899 non-directory part as the marked files in the Dired buffer in the other window." | |
900 (interactive (list (window-buffer (next-window)))) | |
901 (if (eq (get-buffer buf) (current-buffer)) | |
902 (error "Other dired buffer is the same")) | |
903 (or (stringp buf) (setq buf (buffer-name buf))) | |
904 (let ((other-files (save-excursion | |
905 (set-buffer buf) | |
906 (or (eq major-mode 'dired-mode) | |
907 (error "%s is not a dired buffer" buf)) | |
908 (dired-mark-get-files 'no-dir)))) | |
909 (dired-mark-these-files other-files (concat "from buffer " buf)))) | |
910 | |
911 (defun dired-mark-files-compilation-buffer (&optional regexp buf) | |
912 "Mark the files mentioned in the `*compilation*' buffer. | |
913 With an arg, you may specify the other buffer and your own regexp | |
914 instead of `compilation-error-regexp'. | |
915 Use `^.+$' (the default with a prefix arg) to match complete lines or | |
916 an empty string for `compilation-error-regexp'. | |
917 In conjunction with narrowing the other buffer you can mark an | |
918 arbitrary list of files, one per line, with this command." | |
919 (interactive | |
920 (if current-prefix-arg | |
921 (list | |
922 (read-string "Use compilation regexp: " "^.+$") | |
923 (read-buffer "Use buffer: " | |
924 (let ((next-buffer (window-buffer (next-window)))) | |
925 (if (eq next-buffer (current-buffer)) | |
926 (other-buffer) | |
927 next-buffer)))))) | |
928 (let (other-files user-regexp-p) | |
929 (if (zerop (length regexp)) ; nil or "" | |
930 (setq regexp compilation-error-regexp) | |
931 (setq user-regexp-p t)) | |
932 (or buf (setq buf "*compilation*")) | |
933 (or (stringp buf) (setq buf (buffer-name buf))) | |
934 (save-excursion | |
935 (set-buffer (or (get-buffer buf) | |
936 (error "No %s buffer!" buf))) | |
937 (goto-char (point-min)) | |
938 (let (file new-file) | |
939 (while (re-search-forward regexp nil t) | |
940 (setq new-file | |
941 (buffer-substring | |
942 ;; If user specified a regexp with subexpr 1, and it | |
943 ;; matched, take that one for the file name, else | |
944 ;; take whole match. | |
945 ;; Else take the match from the compile regexp | |
946 (if user-regexp-p | |
947 (or (match-beginning 1) | |
948 (match-beginning 0)) | |
949 (match-beginning 1)) | |
950 (if user-regexp-p | |
951 (or (match-end 1) | |
952 (match-end 0)) | |
953 (match-beginning 2)))) | |
954 (or (equal file new-file) | |
955 ;; Avoid marking files twice as this is slow. Multiple | |
956 ;; lines for the same file are common when compiling. | |
957 (setq other-files (cons new-file other-files) | |
958 file new-file))))) | |
959 (dired-mark-these-files other-files (concat "from buffer " buf)))) | |
960 | |
961 | |
962 ;; make-symbolic-link always expand-file-name's its args, so relative | |
963 ;; symlinks (e.g. "foo" -> "../bar/foo") are impossible to create. | |
964 ;; Following code uses ln -s for a workaround. | |
965 | |
966 (defvar dired-keep-marker-relsymlink ?S | |
967 "See variable `dired-keep-marker-move'.") | |
968 | |
969 (defun dired-make-symbolic-link (name1 name2 &optional ok-if-already-exists) | |
970 ;; Args NAME1 NAME2 &optional OK-IF-ALREADY-EXISTS. | |
971 ;; Create file NAME2, a symbolic link pointing to NAME1 (which may | |
972 ;; be any string whatsoever and is passed untouched to ln -s). | |
973 ;; OK-IF-ALREADY-EXISTS means that NAME2 will be overwritten if it | |
974 ;; already exists. If it is an integer, user will be asked about this. | |
975 ;; On error, signals a file-error. | |
976 (interactive "FSymlink to (string): \nFMake symbolic link to `%s': \np") | |
977 (setq name2 (expand-file-name name2)) | |
978 (let* ((file-symlink-p (file-symlink-p name2)) | |
979 (file-exists-p (file-exists-p name2)) ; dereferences symlinks | |
980 (file-or-symlink-exists (or file-symlink-p file-exists-p))) | |
981 (if (and file-symlink-p (not file-exists-p)) | |
982 ;; We do something dirty here as dired.el never checks | |
983 ;; file-symlink-p in addition to file-exists-p. | |
984 ;; This way me make sure we never silently overwrite even | |
985 ;; symlinks to non-existing files (what an achievement! ;-) | |
986 (setq ok-if-already-exists 1)) | |
987 (if (or (null ok-if-already-exists) | |
988 (integerp ok-if-already-exists)) | |
989 (if (and file-or-symlink-exists | |
990 (not (and (integerp ok-if-already-exists) | |
991 (yes-or-no-p | |
992 (format | |
993 "File %s already exists; symlink anyway? " | |
994 name2))))) | |
995 (signal 'file-error (cons "File already exists" name2)))) | |
996 ;; Bombs if NAME1 starts with "-", but not all ln programs may | |
997 ;; understand "--" to mean end of options...sigh | |
998 (let (err) | |
999 (if file-or-symlink-exists (delete-file name2)) | |
1000 (setq err (dired-check-process "SymLink" "ln" "-s" name1 name2)) | |
1001 (if err | |
1002 (signal 'file-error (cons "ln" err)))))) | |
1003 | |
1004 (defun dired-make-relative-symlink (file1 file2 &optional ok-if-already-exists) | |
1005 "Three arguments: FILE1 FILE2 &optional OK-IF-ALREADY-EXISTS | |
1006 Make a symbolic link (pointing to FILE1) in FILE2. | |
1007 The link is relative (if possible), for example | |
1008 | |
1009 \"/vol/tex/bin/foo\" \"/vol/local/bin/foo\" | |
1010 | |
1011 results in | |
1012 | |
1013 \"../../tex/bin/foo\" \"/vol/local/bin/foo\" | |
1014 " | |
1015 (interactive "FRelSymLink: \nFRelSymLink %s: \np") | |
1016 (let (name1 name2 len1 len2 (index 0) sub) | |
1017 (setq file1 (expand-file-name file1) | |
1018 file2 (expand-file-name file2) | |
1019 len1 (length file1) | |
1020 len2 (length file2)) | |
1021 ;; Find common initial pathname components: | |
1022 (let (next) | |
1023 (while (and (setq next (string-match "/" file1 index)) | |
1024 (setq next (1+ next)) | |
1025 (< next (min len1 len2)) | |
1026 ;; For the comparison, both substrings must end in | |
1027 ;; `/', so NEXT is *one plus* the result of the | |
1028 ;; string-match. | |
1029 ;; E.g., consider the case of linking "/tmp/a/abc" | |
1030 ;; to "/tmp/abc" erronously giving "/tmp/a" instead | |
1031 ;; of "/tmp/" as common initial component | |
1032 (string-equal (substring file1 0 next) | |
1033 (substring file2 0 next))) | |
1034 (setq index next)) | |
1035 (setq name2 file2 | |
1036 sub (substring file1 0 index) | |
1037 name1 (substring file1 index))) | |
1038 (if (string-equal sub "/") | |
1039 ;; No common initial pathname found | |
1040 (setq name1 file1) | |
1041 ;; Else they have a common parent directory | |
1042 (let ((tem (substring file2 index)) | |
1043 (start 0) | |
1044 (count 0)) | |
1045 ;; Count number of slashes we must compensate for ... | |
1046 (while (setq start (string-match "/" tem start)) | |
1047 (setq count (1+ count) | |
1048 start (1+ start))) | |
1049 ;; ... and prepend a "../" for each slash found: | |
1050 (while (> count 0) | |
1051 (setq count (1- count) | |
1052 name1 (concat "../" name1))))) | |
1053 (dired-make-symbolic-link | |
1054 (directory-file-name name1) ; must not link to foo/ | |
1055 ; (trailing slash!) | |
1056 name2 ok-if-already-exists))) | |
1057 | |
1058 (defun dired-do-relsymlink (&optional arg) | |
1059 "Symlink all marked (or next ARG) files into a directory, | |
1060 or make a symbolic link to the current file. | |
1061 This creates relative symbolic links like | |
1062 | |
1063 foo -> ../bar/foo | |
1064 | |
1065 not absolute ones like | |
1066 | |
1067 foo -> /ugly/path/that/may/change/any/day/bar/foo" | |
1068 (interactive "P") | |
1069 (dired-do-create-files 'relsymlink (function dired-make-relative-symlink) | |
1070 "RelSymLink" arg dired-keep-marker-relsymlink)) | |
1071 | |
1072 ;; XEmacs: added extra arg per tbarker@sun059.cpdsc.com (Ted Barker) | |
1073 (defun dired-do-relsymlink-regexp (regexp newname &optional arg whole-path) | |
1074 "RelSymlink all marked files containing REGEXP to NEWNAME. | |
1075 See functions `dired-rename-regexp' and `dired-do-relsymlink' | |
1076 for more info. With optional prefix ARG, will operate on ARG files following | |
1077 point if no files are marked." | |
1078 (interactive (dired-mark-read-regexp "RelSymLink")) | |
1079 (dired-do-create-files-regexp | |
1080 (function dired-make-relative-symlink) | |
1081 "RelSymLink" arg regexp newname whole-path dired-keep-marker-relsymlink)) | |
1082 | |
1083 ;; Virtual dired mode to browse ls -lR listings | |
1084 ;; sk@sun5 7-Mar-1991 16:00 | |
1085 | |
1086 (fset 'virtual-dired 'dired-virtual) | |
1087 (defun dired-virtual (dirname &optional switches) | |
1088 "Put this buffer into Virtual Dired mode. | |
1089 | |
1090 In Virtual Dired mode, all commands that do not actually consult the | |
1091 filesystem will work. | |
1092 | |
1093 This is useful if you want to peruse and move around in an ls -lR | |
1094 output file, for example one you got from an ftp server. With | |
1095 ange-ftp, you can even dired a directory containing an ls-lR file, | |
1096 visit that file and turn on virtual dired mode. But don't try to save | |
1097 this file, as dired-virtual indents the listing and thus changes the | |
1098 buffer. | |
1099 | |
1100 If you have save a Dired buffer in a file you can use \\[dired-virtual] to | |
1101 resume it in a later session. | |
1102 | |
1103 Type \\<dired-mode-map>\\[revert-buffer] in the | |
1104 Virtual Dired buffer and answer `y' to convert the virtual to a real | |
1105 dired buffer again. You don't have to do this, though: you can relist | |
1106 single subdirs using \\[dired-do-redisplay]. | |
1107 " | |
1108 | |
1109 ;; DIRNAME is the top level directory of the buffer. It will become | |
1110 ;; its `default-directory'. If nil, the old value of | |
1111 ;; default-directory is used. | |
1112 | |
1113 ;; Optional SWITCHES are the ls switches to use. | |
1114 | |
1115 ;; Shell wildcards will be used if there already is a `wildcard' | |
1116 ;; line in the buffer (thus it is a saved Dired buffer), but there | |
1117 ;; is no other way to get wildcards. Insert a `wildcard' line by | |
1118 ;; hand if you want them. | |
1119 | |
1120 (interactive | |
1121 (list (read-string "Virtual Dired directory: " (dired-virtual-guess-dir)))) | |
1122 (goto-char (point-min)) | |
1123 (or (looking-at " ") | |
1124 ;; if not already indented, do it now: | |
1125 (indent-region (point-min) (point-max) 2)) | |
1126 (or dirname (setq dirname default-directory)) | |
1127 (setq dirname (expand-file-name (file-name-as-directory dirname))) | |
1128 (setq default-directory dirname) ; contains no wildcards | |
1129 (let ((wildcard (save-excursion | |
1130 (goto-char (point-min)) | |
1131 (forward-line 1) | |
1132 (and (looking-at "^ wildcard ") | |
1133 (buffer-substring (match-end 0) | |
1134 (progn (end-of-line) (point))))))) | |
1135 (if wildcard | |
1136 (setq dirname (expand-file-name wildcard default-directory)))) | |
1137 ;; If raw ls listing (not a saved old dired buffer), give it a | |
1138 ;; decent subdir headerline: | |
1139 (goto-char (point-min)) | |
1140 (or (looking-at dired-subdir-regexp) | |
1141 (dired-insert-headerline default-directory)) | |
1142 (dired-mode dirname (or switches dired-listing-switches)) | |
1143 (setq mode-name "Virtual Dired" | |
1144 revert-buffer-function 'dired-virtual-revert) | |
1145 (set (make-local-variable 'dired-subdir-alist) nil) | |
1146 (dired-build-subdir-alist) | |
1147 (goto-char (point-min)) | |
1148 (dired-initial-position dirname)) | |
1149 | |
1150 (defun dired-virtual-guess-dir () | |
1151 | |
1152 ;; Guess and return appropriate working directory of this buffer, | |
1153 ;; assumed to be in Dired or ls -lR format. | |
1154 ;; The guess is based upon buffer contents. | |
1155 ;; If nothing could be guessed, returns nil. | |
1156 | |
1157 (let ((regexp "^\\( \\)?\\([^ \n\r]*\\)\\(:\\)[\n\r]") | |
1158 (subexpr 2)) | |
1159 (goto-char (point-min)) | |
1160 (cond ((looking-at regexp) | |
1161 ;; If a saved dired buffer, look to which dir and | |
1162 ;; perhaps wildcard it belongs: | |
1163 (let ((dir (buffer-substring (match-beginning subexpr) | |
1164 (match-end subexpr)))) | |
1165 (file-name-as-directory dir))) | |
1166 ;; Else no match for headerline found. It's a raw ls listing. | |
1167 ;; In raw ls listings the directory does not have a headerline | |
1168 ;; try parent of first subdir, if any | |
1169 ((re-search-forward regexp nil t) | |
1170 (file-name-directory | |
1171 (directory-file-name | |
1172 (file-name-as-directory | |
1173 (buffer-substring (match-beginning subexpr) | |
1174 (match-end subexpr)))))) | |
1175 (t ; if all else fails | |
1176 nil)))) | |
1177 | |
1178 | |
1179 (defun dired-virtual-revert (&optional arg noconfirm) | |
1180 (if (not | |
1181 (y-or-n-p "Cannot revert a Virtual Dired buffer - switch to Real Dired mode? ")) | |
1182 (error "Cannot revert a Virtual Dired buffer.") | |
1183 (setq mode-name "Dired" | |
1184 revert-buffer-function 'dired-revert) | |
1185 (revert-buffer))) | |
1186 | |
1187 ;; A zero-arg version of dired-virtual. | |
1188 ;; You need my modified version of set-auto-mode for the | |
1189 ;; `buffer-contents-mode-alist'. | |
1190 ;; Or you use infer-mode.el and infer-mode-alist, same syntax. | |
1191 (defun dired-virtual-mode () | |
1192 "Put current buffer into virtual dired mode (see `dired-virtual'). | |
1193 Useful on `buffer-contents-mode-alist' (which see) with the regexp | |
1194 | |
1195 \"^ \\(/[^ /]+\\)/?+:$\" | |
1196 | |
1197 to put saved dired buffers automatically into virtual dired mode. | |
1198 | |
1199 Also useful for `auto-mode-alist' (which see) like this: | |
1200 | |
1201 \(setq auto-mode-alist (cons '(\"[^/]\\.dired$\" . dired-virtual-mode) | |
1202 auto-mode-alist)\) | |
1203 " | |
1204 (interactive) | |
1205 (dired-virtual (dired-virtual-guess-dir))) | |
1206 | |
1207 | |
1208 (defvar dired-find-subdir nil ; t is pretty near to DWIM... | |
1209 "*If non-nil, Dired does not make a new buffer for a directory if it | |
1210 can be found (perhaps as subdir) in some existing Dired buffer. | |
1211 | |
1212 If there are several Dired buffers for a directory, the most recently | |
1213 used is chosen. | |
1214 | |
1215 Dired avoids switching to the current buffer, so that if you have | |
1216 a normal and a wildcard buffer for the same directory, C-x d RET will | |
1217 toggle between those two.") | |
1218 | |
1219 (or (fboundp 'dired-old-find-buffer-nocreate) | |
1220 (fset 'dired-old-find-buffer-nocreate | |
1221 (symbol-function 'dired-find-buffer-nocreate))) | |
1222 | |
1223 (defun dired-find-buffer-nocreate (dirname) ; redefine dired.el | |
1224 (if dired-find-subdir | |
1225 (let* ((cur-buf (current-buffer)) | |
1226 (buffers (nreverse (dired-buffers-for-dir-exact dirname))) | |
1227 (cur-buf-matches (and (memq cur-buf buffers) | |
1228 ;; wildcards must match, too: | |
1229 (equal dired-directory dirname)))) | |
1230 ;; We don't want to switch to the same buffer--- | |
1231 (setq buffers (delq cur-buf buffers));;need setq with delq | |
1232 (or (car (sort buffers (function dired-x-buffer-more-recently-used-p))) | |
1233 ;; ---unless it's the only possibility: | |
1234 (and cur-buf-matches cur-buf))) | |
1235 (dired-old-find-buffer-nocreate dirname))) | |
1236 | |
1237 ;; this should be a builtin | |
1238 (defun dired-x-buffer-more-recently-used-p (buffer1 buffer2) | |
1239 "Return t if BUFFER1 is more recently used than BUFFER2." | |
1240 (if (equal buffer1 buffer2) | |
1241 nil | |
1242 (let ((more-recent nil) | |
1243 (list (buffer-list))) | |
1244 (while (and list | |
1245 (not (setq more-recent (equal buffer1 (car list)))) | |
1246 (not (equal buffer2 (car list)))) | |
1247 (setq list (cdr list))) | |
1248 more-recent))) | |
1249 | |
1250 (defun dired-buffers-for-dir-exact (dir) | |
1251 ;; Return a list of buffers that dired DIR (a directory or wildcard) | |
1252 ;; at top level, or as subdirectory. | |
1253 ;; Top level matches must match the wildcard part too, if any. | |
1254 ;; The list is in reverse order of buffer creation, most recent last. | |
1255 ;; As a side effect, killed dired buffers for DIR are removed from | |
1256 ;; dired-buffers. | |
1257 (let ((alist dired-buffers) result elt) | |
1258 (while alist | |
1259 (setq elt (car alist) | |
1260 alist (cdr alist)) | |
1261 (let ((buf (cdr elt))) | |
1262 (if (buffer-name buf) | |
1263 ;; Top level must match exactly against dired-directory in | |
1264 ;; case one of them is a wildcard. | |
1265 (if (or (equal dir (save-excursion (set-buffer buf) | |
1266 dired-directory)) | |
1267 (assoc dir (save-excursion (set-buffer buf) | |
1268 dired-subdir-alist))) | |
1269 (setq result (cons buf result))) | |
1270 ;; else buffer is killed - clean up: | |
1271 (setq dired-buffers (delq elt dired-buffers))))) | |
1272 result)) | |
1273 | |
1274 (defun dired-buffers-for-top-dir (dir) | |
1275 ;; Return a list of buffers that dired DIR (a directory, not a wildcard) | |
1276 ;; at top level, with or without wildcards. | |
1277 ;; As a side effect, killed dired buffers for DIR are removed from | |
1278 ;; dired-buffers. | |
1279 (setq dir (file-name-as-directory dir)) | |
1280 (let ((alist dired-buffers) result elt) | |
1281 (while alist | |
1282 (setq elt (car alist) | |
1283 alist (cdr alist)) | |
1284 (let ((buf (cdr elt))) | |
1285 (if (buffer-name buf) | |
1286 (if (equal dir (save-excursion (set-buffer buf) default-directory)) | |
1287 (setq result (cons buf result))) | |
1288 ;; else buffer is killed - clean up: | |
1289 (setq dired-buffers (delq elt dired-buffers))))) | |
1290 result)) | |
1291 | |
1292 (defun dired-initial-position (dirname) ; redefine dired.el | |
1293 (end-of-line) | |
1294 (if dired-find-subdir (dired-goto-subdir dirname)) ; new | |
1295 (if dired-trivial-filenames (dired-goto-next-nontrivial-file))) | |
1296 | |
1297 ;;; Let `C-x f' and `C-x 4 f' know about Tree Dired's multiple directories. | |
1298 ;;; As a bonus, you get filename-at-point as default with a prefix arg. | |
1299 | |
1300 ;; It's easier to add to this alist than redefine function | |
1301 ;; default-directory while keeping the old information. | |
1302 (defconst default-directory-alist | |
1303 '((dired-mode . (if (fboundp 'dired-current-directory) | |
1304 (dired-current-directory) | |
1305 default-directory))) | |
1306 "Alist of major modes and their opinion on default-directory, as a | |
1307 lisp expression to evaluate. A resulting value of nil is ignored in | |
1308 favor of default-directory.") | |
1309 | |
1310 (defun default-directory () | |
1311 "Usage like variable `default-directory', but knows about the special | |
1312 cases in variable `default-directory-alist' (which see)." | |
1313 (or (eval (cdr (assq major-mode default-directory-alist))) | |
1314 default-directory)) | |
1315 | |
1316 (defun find-file-read-filename-at-point (prompt) | |
1317 (if (fboundp 'gmhist-read-file-name) | |
1318 (if current-prefix-arg | |
1319 (let ((fn (filename-at-point))) | |
1320 (gmhist-read-file-name | |
1321 prompt (default-directory) fn nil | |
1322 ;; the INITIAL arg is only accepted in Emacs 19 or with gmhist: | |
1323 fn)) | |
1324 (gmhist-read-file-name prompt (default-directory))) | |
1325 ;; Else gmhist is not available, thus no initial input possible. | |
1326 ;; Could use filename-at-point as default and mung prompt...ugh. | |
1327 ;; Nah, get gmhist, folks! | |
1328 (read-file-name prompt (default-directory)))) | |
1329 | |
1330 (defun filename-at-point () | |
1331 "Get the filename closest to point, but don't change your position. | |
1332 Has a preference for looking backward when not directly on a symbol." | |
1333 ;; Not at all perfect - point must be right in the name. | |
1334 (let ((filename-chars ".a-zA-Z0-9---_/:$") start end filename | |
1335 (bol (save-excursion (beginning-of-line) (point))) | |
1336 (eol (save-excursion (end-of-line) (point)))) | |
1337 (save-excursion | |
1338 ;; first see if you're just past a filename | |
1339 (if (not (eobp)) | |
1340 (if (looking-at "[] \t\n[{}()]") ; whitespace or some parens | |
1341 (progn | |
1342 (skip-chars-backward " \n\t\r({[]})") | |
1343 (if (not (bobp)) | |
1344 (backward-char 1))))) | |
1345 (if (string-match (concat "[" filename-chars "]") | |
1346 (char-to-string (following-char))) | |
1347 (progn | |
1348 (skip-chars-backward filename-chars) | |
1349 (setq start (point)) | |
1350 (if (string-match "[/~]" (char-to-string (preceding-char))) | |
1351 (setq start (1- start))) | |
1352 (skip-chars-forward filename-chars)) | |
1353 (error "No file found around point!")) | |
1354 (expand-file-name (buffer-substring start (point)))))) | |
1355 | |
1356 (defun find-this-file (fn) | |
1357 "Edit file FILENAME. | |
1358 Switch to a buffer visiting file FILENAME, creating one if none already exists. | |
1359 | |
1360 Interactively, with a prefix arg, calls `filename-at-point'. | |
1361 Useful to edit the file mentioned in the buffer you are editing, or to | |
1362 test if that file exists: use minibuffer completion after snatching the | |
1363 name or part of it." | |
1364 (interactive (list (find-file-read-filename-at-point "Find file: "))) | |
1365 (find-file (expand-file-name fn))) | |
1366 | |
1367 (defun find-this-file-other-window (fn) | |
1368 "Edit file FILENAME in other window. | |
1369 Switch to a buffer visiting file FILENAME, creating one if none already exists. | |
1370 | |
1371 Interactively, with a prefix arg, call `filename-at-point'. | |
1372 Useful to edit the file mentioned in the buffer you are editing, or to | |
1373 test if that file exists: use minibuffer completion after snatching the | |
1374 name or part of it." | |
1375 (interactive (list (find-file-read-filename-at-point "Find file: "))) | |
1376 (find-file-other-window (expand-file-name fn))) | |
1377 | |
1378 (defun dired-smart-shell-command (cmd &optional insert) | |
1379 "Like function `shell-command', but in the current Tree Dired directory." | |
1380 (interactive "sShell command: \nP") | |
1381 (let ((default-directory (default-directory))) | |
1382 (shell-command cmd insert))) | |
1383 | |
1384 (if (fboundp 'gmhist-make-magic) | |
1385 (gmhist-make-magic 'dired-smart-shell-command 'shell-history)) | |
1386 | |
1387 (defun dired-smart-background-shell-command (cmd) | |
1388 "Run a shell command in the background. | |
1389 Like function `background' but in the current Tree Dired directory." | |
1390 (interactive "s%% ") | |
1391 (shell-command (concat "cd " (default-directory) "; " cmd " &"))) | |
1392 | |
1393 (if (fboundp 'gmhist-make-magic) | |
1394 (gmhist-make-magic 'dired-smart-background-shell-command 'shell-history)) | |
1395 | |
1396 | |
1397 ;; Local variables for Dired buffers | |
1398 | |
1399 (defvar dired-local-variables-file ".dired" | |
1400 "If non-nil, filename for local variables for Dired. | |
1401 If Dired finds a file with that name in the current directory, it will | |
1402 temporarily insert it into the dired buffer and run `hack-local-variables'. | |
1403 | |
1404 Type \\[info] and `g' `(emacs)File Variables' `RET' for more info on | |
1405 local variables.") | |
1406 | |
1407 (defun dired-hack-local-variables () | |
1408 "Parse, and bind or evaluate as appropriate, any local variables | |
1409 for current dired buffer. | |
1410 See variable `dired-local-variables-file'." | |
1411 (if (and dired-local-variables-file | |
1412 (file-exists-p dired-local-variables-file)) | |
1413 (let (buffer-read-only opoint ) | |
1414 (save-excursion | |
1415 (goto-char (point-max)) | |
1416 (setq opoint (point-marker)) | |
1417 (insert "\^L\n") | |
1418 (insert-file-contents dired-local-variables-file)) | |
1419 (let ((buffer-file-name dired-local-variables-file)) | |
1420 (hack-local-variables)) | |
1421 ;; Must delete it as (eobp) is often used as test for last | |
1422 ;; subdir in dired.el. | |
1423 (delete-region opoint (point-max)) | |
1424 (set-marker opoint nil)))) | |
1425 | |
1426 ;; Guess what shell command to apply to a file. | |
1427 | |
1428 (defvar dired-guess-have-gnutar nil | |
1429 "*If non-nil, name of the GNU tar executable (e.g. \"tar\" or \"gnutar\"). | |
1430 GNU tar's `z' switch is used for compressed tar files. | |
1431 If you don't have GNU tar, set this to nil: a pipe using `zcat' is then used.") | |
1432 | |
1433 (defvar dired-make-gzip-quiet t | |
1434 "*If non-nil, pass -q to shell commands involving gzip this will override | |
1435 GZIP environment variable.") | |
1436 | |
1437 (defvar dired-znew-switches nil | |
1438 "*If non-nil, a string of switches that will be passed to `znew' | |
1439 example: \"-K\"") | |
1440 | |
1441 (defvar dired-auto-shell-command-alist-default | |
1442 (list | |
1443 (list "\\.tar$" (if dired-guess-have-gnutar | |
1444 (concat dired-guess-have-gnutar " xvf") | |
1445 "tar xvf")) | |
1446 | |
1447 ;; regexps for compressed archives must come before the .Z rule to | |
1448 ;; be recognized: | |
1449 (list "\\.tar\\.Z$" (if dired-guess-have-gnutar | |
1450 (concat dired-guess-have-gnutar " zxvf") | |
1451 (concat "zcat * | tar xvf -")) | |
1452 ;; optional conversion to gzip (GNU zip) format | |
1453 (concat "znew" | |
1454 (if dired-make-gzip-quiet " -q") | |
1455 " " dired-znew-switches)) | |
1456 | |
1457 ;; gzip'ed (GNU zip) archives | |
1458 (list "\\.tar\\.g?z$\\|\\.tgz$" (if dired-guess-have-gnutar | |
1459 (concat dired-guess-have-gnutar " zxvf") | |
1460 ;; use `gunzip -qc' instead of `zcat' since some | |
1461 ;; people don't install GNU zip's version of zcat | |
1462 (concat "gunzip -qc * | tar xvf -"))) | |
1463 '("\\.shar.Z$" "zcat * | unshar") | |
1464 ;; use `gunzip -c' instead of `zcat' | |
1465 '("\\.shar.g?z$" "gunzip -qc * | unshar") | |
1466 '("\\.ps$" "ghostview" "xv" "lpr") | |
1467 '("\\.ps.g?z$" "gunzip -qc * | ghostview -" | |
1468 ;; optional decompression | |
1469 (concat "gunzip" (if dired-make-gzip-quiet " -q"))) | |
1470 '("\\.ps.Z$" "zcat * | ghostview -" | |
1471 ;; optional conversion to gzip (GNU zip) format | |
1472 (concat "znew" | |
1473 (if dired-make-gzip-quiet " -q") | |
1474 " " dired-znew-switches)) | |
1475 '("\\.dvi$" "xdvi" "dvips") | |
1476 '("\\.au$" "play") ; play Sun audiofiles | |
1477 '("\\.mpg$" "mpeg_play") | |
1478 '("\\.dl$" "xdl") ; loop pictures | |
1479 '("\\.fli$" "xanim") | |
1480 '("\\.gl$" "xgrasp") | |
1481 '("\\.uu$" "uudecode") | |
1482 '("\\.hqx$" "mcvert") | |
1483 '("\\.sh$" "sh") ; execute shell scripts | |
1484 '("\\.xbm$" "bitmap") ; view X11 bitmaps | |
1485 '("\\.xpm$" "sxpm") | |
1486 '("\\.gp$" "gnuplot") | |
1487 '("\\.p[bgpn]m$" "xv") | |
1488 '("\\.gif$" "xv") ; view gif pictures | |
1489 '("\\.tif$" "xv") | |
1490 '("\\.jpg$" "xv") | |
1491 '("\\.fig$" "xfig") ; edit fig pictures | |
1492 '("\.tex$" "latex" "tex") | |
1493 '("\\.texi\\(nfo\\)?$" "makeinfo" "texi2dvi") | |
1494 (if (eq window-system 'x) ; under X, offer both... | |
1495 '("\\.dvi$" "xtex" "dvips") ; ...preview and printing | |
1496 '("\\.dvi$" "dvips")) | |
1497 '("\\.g?z$" (concat "gunzip" (if dired-make-gzip-quiet " -q" ""))) ; quiet? | |
1498 '("\\.Z$" "uncompress" | |
1499 ;; optional conversion to gzip (GNU zip) format | |
1500 (concat "znew" (if dired-make-gzip-quiet " -q") " " dired-znew-switches)) | |
1501 ;; some popular archivers: | |
1502 '("\\.zoo$" "zoo x//") | |
1503 '("\\.zip$" "unzip") | |
1504 '("\\.lzh$" "lharc x") | |
1505 '("\\.arc$" "arc x") | |
1506 '("\\.shar$" "unshar") ; use "sh" if you don't have unshar | |
1507 ) | |
1508 | |
1509 "Default for variable `dired-auto-shell-command-alist' (which see). | |
1510 Set this to nil to turn off shell command guessing.") | |
1511 | |
1512 (defvar dired-auto-shell-command-alist nil | |
1513 "*If non-nil, an alist of file regexps and their suggested commands. | |
1514 Dired shell commands will look up the name of a file in this list | |
1515 and suggest the matching command as default. | |
1516 | |
1517 Each element of this list looks like | |
1518 | |
1519 \(REGEXP COMMAND...\) | |
1520 | |
1521 where each COMMAND can either be a string or a lisp expression that | |
1522 evaluates to a string. If several COMMANDs are given, the first one | |
1523 will be the default and minibuffer completion will use the given set. | |
1524 | |
1525 These rules take precedence over the predefined rules in the variable | |
1526 `dired-auto-shell-command-alist-default' (to which they are prepended). | |
1527 | |
1528 You can set this variable in your ~/.emacs. For example, to add | |
1529 rules for `.foo' and `.bar' files, write | |
1530 | |
1531 \(setq dired-auto-shell-command-alist | |
1532 (list (list \"\\\\.foo$\" \"FOO-COMMAND\");; fixed rule | |
1533 ;; possibly more rules ... | |
1534 (list \"\\\\.bar$\";; rule with condition test | |
1535 '(if condition | |
1536 \"BAR-COMMAND-1\" | |
1537 \"BAR-COMMAND-2\")))\) | |
1538 ") | |
1539 | |
1540 (setq dired-auto-shell-command-alist | |
1541 (if dired-auto-shell-command-alist;; join user and default value: | |
1542 (append dired-auto-shell-command-alist | |
1543 dired-auto-shell-command-alist-default) | |
1544 ;; else just copy the default value: | |
1545 dired-auto-shell-command-alist-default)) | |
1546 | |
1547 (defun dired-guess-default (files) | |
1548 ;; Guess a shell command for FILES. | |
1549 ;; Returns a command or a list of commands. | |
1550 ;; You may want to redefine this to try something smarter. | |
1551 (if (or (cdr files) | |
1552 (null dired-auto-shell-command-alist)) | |
1553 nil ; If more than one file, don't guess | |
1554 (let* ((file (car files)) | |
1555 (alist dired-auto-shell-command-alist) | |
1556 (case-fold-search nil) ; need search to be case-sensitive in order | |
1557 ; to distinguish between gzip'ed (`.z') and | |
1558 ; compressed (`.Z') files | |
1559 elt re cmds) | |
1560 (while alist | |
1561 (setq elt (car alist) | |
1562 re (car elt) | |
1563 alist (cdr alist)) | |
1564 (if (string-match re file) | |
1565 (setq cmds (cdr elt) | |
1566 alist nil))) | |
1567 (cond ((not (cdr cmds)) (eval (car cmds))) ; single command | |
1568 (t (mapcar (function eval) cmds)))))) | |
1569 | |
1570 (defun dired-guess-shell-command (prompt files) | |
1571 ;;"Ask user with PROMPT for a shell command, guessing a default from FILES." | |
1572 (let ((default (dired-guess-default files)) | |
1573 default-list old-history val (failed t)) | |
1574 (if (not (featurep 'gmhist)) | |
1575 (read-string prompt (if (listp default) (car default) default)) | |
1576 ;; else we have gmhist | |
1577 (if (null default) | |
1578 (read-with-history-in 'dired-shell-command-history prompt) | |
1579 (or (boundp 'dired-shell-command-history) | |
1580 (setq dired-shell-command-history nil)) | |
1581 (setq old-history dired-shell-command-history) | |
1582 (if (listp default) | |
1583 ;; more than one guess | |
1584 (setq default-list default | |
1585 default (car default) | |
1586 prompt (concat | |
1587 prompt | |
1588 (format "{%d guesses} " (length default-list)))) | |
1589 ;; just one guess | |
1590 (setq default-list (list default))) | |
1591 (put 'dired-shell-command-history 'default default) | |
1592 ;; push guesses onto history so that they can be retrieved with M-p | |
1593 (setq dired-shell-command-history | |
1594 (append default-list dired-shell-command-history)) | |
1595 ;; the unwind-protect returns VAL, and we too. | |
1596 (unwind-protect | |
1597 (progn | |
1598 (setq val (read-with-history-in | |
1599 'dired-shell-command-history prompt) | |
1600 failed nil) | |
1601 val) | |
1602 (progn | |
1603 ;; Undo pushing onto the history list so that an aborted | |
1604 ;; command doesn't get the default in the next command. | |
1605 (setq dired-shell-command-history old-history) | |
1606 (if (not failed) | |
1607 (or (equal val (car-safe dired-shell-command-history)) | |
1608 (setq dired-shell-command-history | |
1609 (cons val dired-shell-command-history)))))))))) | |
1610 | |
1611 ;; redefine dired.el's version: | |
1612 (defun dired-read-shell-command (prompt arg files) | |
1613 "Read a dired shell command using generic minibuffer history. | |
1614 This command tries to guess a command from the filename(s) | |
1615 from the variable `dired-auto-shell-command-alist' (which see)." | |
1616 (dired-mark-pop-up | |
1617 nil 'shell files ; bufname type files | |
1618 'dired-guess-shell-command ; function &rest args | |
1619 (format prompt (dired-mark-prompt arg files)) files)) | |
1620 | |
1621 | |
1622 ;; Byte-compile-and-load (requires jwz@lucid.com's new byte compiler) | |
1623 (defun dired-do-byte-compile-and-load (&optional arg) | |
1624 "Byte compile marked and load (or next ARG) Emacs lisp files. | |
1625 This requires jwz@lucid.com's new optimizing byte compiler." | |
1626 (interactive "P") | |
1627 (dired-mark-map-check (function dired-byte-compile-and-load) arg | |
1628 'byte-compile-and-load t)) | |
1629 | |
1630 (defun dired-byte-compile-and-load () | |
1631 ;; Return nil for success, offending file name else. | |
1632 (let* (buffer-read-only | |
1633 (from-file (dired-get-filename)) | |
1634 (new-file (byte-compile-dest-file from-file))) | |
1635 (if (not (string-match elisp-source-extention-re from-file)) | |
1636 (progn | |
1637 (dired-log "Attempt to compile non-elisp file %s\n" from-file) | |
1638 ;; return a non-nil value as error indication | |
1639 (dired-make-relative from-file)) | |
1640 (save-excursion;; Jamie's compiler may switch buffer | |
1641 (byte-compile-and-load-file from-file)) | |
1642 (dired-remove-file new-file) | |
1643 (forward-line) ; insert .elc after its .el file | |
1644 (dired-add-file new-file) | |
1645 nil))) | |
1646 | |
1647 ;; Visit all marked files simultaneously. | |
1648 ;; After an idea by wurgler@zippysun.math.uakron.edu (Tom Wurgler). | |
1649 | |
1650 (defun dired-do-find-file (&optional arg) | |
1651 "Visit all marked files at once, and display them simultaneously. | |
1652 See also function `simultaneous-find-file'. | |
1653 If you want to keep the dired buffer displayed, type \\[split-window-vertically] first. | |
1654 If you want just the marked files displayed and nothing else, type \\[delete-other-windows] first." | |
1655 (interactive "P") | |
1656 (simultaneous-find-file (dired-mark-get-files nil arg))) | |
1657 | |
1658 (defun simultaneous-find-file (file-list) | |
1659 "Visit all files in FILE-LIST and display them simultaneously. | |
1660 | |
1661 The current window is split across all files in FILE-LIST, as evenly | |
1662 as possible. Remaining lines go to the bottommost window. | |
1663 | |
1664 The number of files that can be displayed this way is restricted by | |
1665 the height of the current window and the variable `window-min-height'." | |
1666 ;; It is usually too clumsy to specify FILE-LIST interactively | |
1667 ;; unless via dired (dired-do-find-file). | |
1668 (let ((size (/ (window-height) (length file-list)))) | |
1669 (or (<= window-min-height size) | |
1670 (error "Too many files to visit simultaneously")) | |
1671 (find-file (car file-list)) | |
1672 (setq file-list (cdr file-list)) | |
1673 (while file-list | |
1674 ;; Split off vertically a window of the desired size | |
1675 ;; The upper window will have SIZE lines. We select the lower | |
1676 ;; (larger) window because we want to split that again. | |
1677 (select-window (split-window nil size)) | |
1678 (find-file (car file-list)) | |
1679 (setq file-list (cdr file-list))))) |