632 lines
22 KiB
EmacsLisp
632 lines
22 KiB
EmacsLisp
;;; Missing: P command, sorting, setting file modes.
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;;; Dired buffer containing multiple directories gets totally confused
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;;; Implement insertion of subdirectories in situ --- tree dired
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;; DIRED commands for Emacs
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;; Copyright (C) 1985, 1986 Free Software Foundation, Inc.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 1, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;In loaddefs.el
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;(defvar dired-listing-switches "-al"
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; "Switches passed to ls for dired. MUST contain the 'l' option.
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;CANNOT contain the 'F' option.")
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(defun dired-readin (dirname buffer)
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(save-excursion
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(message "Reading directory %s..." dirname)
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(set-buffer buffer)
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(let ((buffer-read-only nil))
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(widen)
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(erase-buffer)
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(setq dirname (expand-file-name dirname))
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(if (file-directory-p dirname)
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(call-process "ls" nil buffer nil
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dired-listing-switches dirname)
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(let ((default-directory (file-name-directory dirname)))
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(call-process shell-file-name nil buffer nil
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"-c" (concat "ls " dired-listing-switches " "
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(file-name-nondirectory dirname)))))
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(goto-char (point-min))
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(while (not (eobp))
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(insert " ")
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(forward-line 1))
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(goto-char (point-min)))
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(message "Reading directory %s...done" dirname)))
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(defun dired-find-buffer (dirname)
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(let ((blist (buffer-list))
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found)
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(while blist
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(save-excursion
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(set-buffer (car blist))
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(if (and (eq major-mode 'dired-mode)
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(equal dired-directory dirname))
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(setq found (car blist)
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blist nil)
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(setq blist (cdr blist)))))
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(or found
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(create-file-buffer (directory-file-name dirname)))))
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(defun dired (dirname)
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"\"Edit\" directory DIRNAME--delete, rename, print, etc. some files in it.
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Dired displays a list of files in DIRNAME.
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You can move around in it with the usual commands.
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You can flag files for deletion with C-d
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and then delete them by typing `x'.
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Type `h' after entering dired for more info."
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(interactive (list (read-file-name "Dired (directory): "
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nil default-directory nil)))
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(switch-to-buffer (dired-noselect dirname)))
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(defun dired-other-window (dirname)
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"\"Edit\" directory DIRNAME. Like M-x dired but selects in another window."
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(interactive (list (read-file-name "Dired in other window (directory): "
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nil default-directory nil)))
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(switch-to-buffer-other-window (dired-noselect dirname)))
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(defun dired-noselect (dirname)
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"Like M-x dired but returns the dired buffer as value, does not select it."
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(or dirname (setq dirname default-directory))
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(setq dirname (expand-file-name (directory-file-name dirname)))
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(if (file-directory-p dirname)
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(setq dirname (file-name-as-directory dirname)))
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(let ((buffer (dired-find-buffer dirname)))
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(save-excursion
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(set-buffer buffer)
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(dired-readin dirname buffer)
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(dired-move-to-filename)
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(dired-mode dirname))
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buffer))
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(defun dired-revert (&optional arg noconfirm)
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(let ((opoint (point))
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(ofile (dired-get-filename t t))
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(buffer-read-only nil))
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(erase-buffer)
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(dired-readin dired-directory (current-buffer))
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(or (and ofile (re-search-forward (concat " " (regexp-quote ofile) "$")
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nil t))
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(goto-char opoint))
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(beginning-of-line)))
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(defvar dired-mode-map nil "Local keymap for dired-mode buffers.")
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(if dired-mode-map
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nil
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(setq dired-mode-map (make-keymap))
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(suppress-keymap dired-mode-map)
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(define-key dired-mode-map "r" 'dired-rename-file)
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(define-key dired-mode-map "\C-d" 'dired-flag-file-deleted)
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(define-key dired-mode-map "d" 'dired-flag-file-deleted)
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(define-key dired-mode-map "v" 'dired-view-file)
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(define-key dired-mode-map "e" 'dired-find-file)
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(define-key dired-mode-map "f" 'dired-find-file)
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(define-key dired-mode-map "o" 'dired-find-file-other-window)
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(define-key dired-mode-map "u" 'dired-unflag)
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(define-key dired-mode-map "x" 'dired-do-deletions)
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(define-key dired-mode-map "\177" 'dired-backup-unflag)
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(define-key dired-mode-map "?" 'dired-summary)
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(define-key dired-mode-map "c" 'dired-copy-file)
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(define-key dired-mode-map "#" 'dired-flag-auto-save-files)
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(define-key dired-mode-map "~" 'dired-flag-backup-files)
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(define-key dired-mode-map "." 'dired-clean-directory)
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(define-key dired-mode-map "h" 'describe-mode)
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(define-key dired-mode-map " " 'dired-next-line)
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(define-key dired-mode-map "\C-n" 'dired-next-line)
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(define-key dired-mode-map "\C-p" 'dired-previous-line)
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(define-key dired-mode-map "n" 'dired-next-line)
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(define-key dired-mode-map "p" 'dired-previous-line)
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(define-key dired-mode-map "g" 'revert-buffer)
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(define-key dired-mode-map "C" 'dired-compress)
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(define-key dired-mode-map "U" 'dired-uncompress)
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(define-key dired-mode-map "B" 'dired-byte-recompile)
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(define-key dired-mode-map "M" 'dired-chmod)
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(define-key dired-mode-map "G" 'dired-chgrp)
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(define-key dired-mode-map "O" 'dired-chown))
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;; Dired mode is suitable only for specially formatted data.
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(put 'dired-mode 'mode-class 'special)
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(defun dired-mode (&optional dirname)
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"Mode for \"editing\" directory listings.
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In dired, you are \"editing\" a list of the files in a directory.
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You can move using the usual cursor motion commands.
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Letters no longer insert themselves.
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Instead, type d to flag a file for Deletion.
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Type u to Unflag a file (remove its D flag).
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Type Rubout to back up one line and unflag.
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Type x to eXecute the deletions requested.
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Type f to Find the current line's file
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(or Dired it, if it is a directory).
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Type o to find file or dired directory in Other window.
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Type # to flag temporary files (names beginning with #) for Deletion.
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Type ~ to flag backup files (names ending with ~) for Deletion.
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Type . to flag numerical backups for Deletion.
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(Spares dired-kept-versions or its numeric argument.)
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Type r to rename a file.
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Type c to copy a file.
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Type v to view a file in View mode, returning to Dired when done.
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Type g to read the directory again. This discards all deletion-flags.
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Space and Rubout can be used to move down and up by lines.
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Also: C -- compress this file. U -- uncompress this file.
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B -- byte compile this file.
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M, G, O -- change file's mode, group or owner.
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\\{dired-mode-map}"
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(interactive)
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(kill-all-local-variables)
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(make-local-variable 'revert-buffer-function)
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(setq revert-buffer-function 'dired-revert)
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(setq major-mode 'dired-mode)
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(setq mode-name "Dired")
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(make-local-variable 'dired-directory)
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(setq dired-directory (or dirname default-directory))
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(if dirname
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(setq default-directory
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(if (file-directory-p dirname)
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dirname (file-name-directory dirname))))
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(setq mode-line-buffer-identification '("Dired: %17b"))
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(setq case-fold-search nil)
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(setq buffer-read-only t)
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(use-local-map dired-mode-map)
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(run-hooks 'dired-mode-hook))
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(defun dired-repeat-over-lines (arg function)
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(beginning-of-line)
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(while (and (> arg 0) (not (eobp)))
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(setq arg (1- arg))
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(save-excursion
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(beginning-of-line)
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(and (bobp) (looking-at " total")
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(error "No file on this line"))
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(funcall function))
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(forward-line 1)
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(dired-move-to-filename))
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(while (and (< arg 0) (not (bobp)))
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(setq arg (1+ arg))
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(forward-line -1)
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(dired-move-to-filename)
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(save-excursion
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(beginning-of-line)
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(funcall function))))
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(defun dired-flag-file-deleted (arg)
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"In dired, flag the current line's file for deletion.
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With arg, repeat over several lines."
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(interactive "p")
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(dired-repeat-over-lines arg
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'(lambda ()
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(let ((buffer-read-only nil))
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(delete-char 1)
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(insert "D")))))
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(defun dired-summary ()
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(interactive)
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;>> this should check the key-bindings and use substitute-command-keys if non-standard
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(message
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"d-elete, u-ndelete, x-ecute, f-ind, o-ther window, r-ename, c-opy, v-iew"))
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(defun dired-unflag (arg)
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"In dired, remove the current line's delete flag then move to next line."
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(interactive "p")
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(dired-repeat-over-lines arg
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'(lambda ()
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(let ((buffer-read-only nil))
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(delete-char 1)
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(insert " ")
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(forward-char -1)))))
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(defun dired-backup-unflag (arg)
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"In dired, move up a line and remove deletion flag there."
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(interactive "p")
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(dired-unflag (- arg)))
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(defun dired-next-line (arg)
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"Move down ARG lines then position at filename."
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(interactive "p")
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(next-line arg)
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(dired-move-to-filename))
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(defun dired-previous-line (arg)
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"Move up ARG lines then position at filename."
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(interactive "p")
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(previous-line arg)
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(dired-move-to-filename))
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(defun dired-find-file ()
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"In dired, visit the file or directory named on this line."
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(interactive)
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(find-file (dired-get-filename)))
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(defun dired-view-file ()
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"In dired, examine a file in view mode, returning to dired when done."
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(interactive)
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(if (file-directory-p (dired-get-filename))
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(dired (dired-get-filename))
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(view-file (dired-get-filename))))
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(defun dired-find-file-other-window ()
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"In dired, visit this file or directory in another window."
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(interactive)
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(find-file-other-window (dired-get-filename)))
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(defun dired-get-filename (&optional localp no-error-if-not-filep)
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"In dired, return name of file mentioned on this line.
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Value returned normally includes the directory name.
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A non-nil 1st argument means do not include it. A non-nil 2nd argument
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says return nil if no filename on this line, otherwise an error occurs."
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(let (eol)
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(save-excursion
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(end-of-line)
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(setq eol (point))
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(beginning-of-line)
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(if (re-search-forward
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"\\(Jan\\|Feb\\|Mar\\|Apr\\|May\\|Jun\\|Jul\\|Aug\\|Sep\\|Oct\\|Nov\\|Dec\\)[ ]+[0-9]+"
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eol t)
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(progn (skip-chars-forward " ")
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(skip-chars-forward "^ " eol)
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(skip-chars-forward " " eol)
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(let ((beg (point)))
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(skip-chars-forward "^ \n")
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(if localp
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(buffer-substring beg (point))
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;; >> uses default-directory, could lose on cd, multiple.
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(concat default-directory (buffer-substring beg (point))))))
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(if no-error-if-not-filep nil
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(error "No file on this line"))))))
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(defun dired-move-to-filename ()
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"In dired, move to first char of filename on this line.
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Returns position (point) or nil if no filename on this line."
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(let ((eol (progn (end-of-line) (point))))
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(beginning-of-line)
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(if (re-search-forward
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"\\(Jan\\|Feb\\|Mar\\|Apr\\|May\\|Jun\\|Jul\\|Aug\\|Sep\\|Oct\\|Nov\\|Dec\\)[ ]+[0-9]+"
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eol t)
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(progn
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(skip-chars-forward " ")
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(skip-chars-forward "^ " eol)
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(skip-chars-forward " " eol)
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(point)))))
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(defun dired-map-dired-file-lines (fn)
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"perform fn with point at the end of each non-directory line:
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arguments are the short and long filename"
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(save-excursion
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(let (filename longfilename (buffer-read-only nil))
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(goto-char (point-min))
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(while (not (eobp))
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(save-excursion
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(and (not (looking-at " d"))
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(not (eolp))
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(setq filename (dired-get-filename t t)
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longfilename (dired-get-filename nil t))
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(progn (end-of-line)
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(funcall fn filename longfilename))))
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(forward-line 1)))))
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(defun dired-flag-auto-save-files ()
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"Flag for deletion files whose names suggest they are auto save files."
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(interactive)
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(save-excursion
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(let ((buffer-read-only nil))
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(goto-char (point-min))
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(while (not (eobp))
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(and (not (looking-at " d"))
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(not (eolp))
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(if (fboundp 'auto-save-file-name-p)
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(let ((fn (dired-get-filename t t)))
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(if fn (auto-save-file-name-p fn)))
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(if (dired-move-to-filename)
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(looking-at "#")))
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(progn (beginning-of-line)
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(delete-char 1)
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(insert "D")))
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(forward-line 1)))))
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(defun dired-clean-directory (keep)
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"Flag numerical backups for Deletion.
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Spares dired-kept-versions latest versions, and kept-old-versions oldest.
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Positive numeric arg overrides dired-kept-versions;
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negative numeric arg overrides kept-old-versions with minus the arg."
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(interactive "P")
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(setq keep (if keep (prefix-numeric-value keep) dired-kept-versions))
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(let ((early-retention (if (< keep 0) (- keep) kept-old-versions))
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(late-retention (if (<= keep 0) dired-kept-versions keep))
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(file-version-assoc-list ()))
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;; Look at each file.
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;; If the file has numeric backup versions,
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;; put on file-version-assoc-list an element of the form
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;; (FILENAME . VERSION-NUMBER-LIST)
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(dired-map-dired-file-lines 'dired-collect-file-versions)
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;; Sort each VERSION-NUMBER-LIST,
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;; and remove the versions not to be deleted.
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(let ((fval file-version-assoc-list))
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(while fval
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(let* ((sorted-v-list (cons 'q (sort (cdr (car fval)) '<)))
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(v-count (length sorted-v-list)))
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(if (> v-count (+ early-retention late-retention))
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(rplacd (nthcdr early-retention sorted-v-list)
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(nthcdr (- v-count late-retention)
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sorted-v-list)))
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(rplacd (car fval)
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(cdr sorted-v-list)))
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(setq fval (cdr fval))))
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;; Look at each file. If it is a numeric backup file,
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;; find it in a VERSION-NUMBER-LIST and maybe flag it for deletion.
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(dired-map-dired-file-lines 'dired-trample-file-versions)))
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(defun dired-collect-file-versions (ignore fn)
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"If it looks like fn has versions, we make a list of the versions.
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We may want to flag some for deletion."
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(let* ((base-versions
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(concat (file-name-nondirectory fn) ".~"))
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(bv-length (length base-versions))
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(possibilities (file-name-all-completions
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base-versions
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(file-name-directory fn)))
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(versions (mapcar 'backup-extract-version possibilities)))
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(if versions
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(setq file-version-assoc-list (cons (cons fn versions)
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file-version-assoc-list)))))
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(defun dired-trample-file-versions (ignore fn)
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(let* ((start-vn (string-match "\\.~[0-9]+~$" fn))
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base-version-list)
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(and start-vn
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(setq base-version-list ; there was a base version to which
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(assoc (substring fn 0 start-vn) ; this looks like a
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file-version-assoc-list)) ; subversion
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(not (memq (string-to-int (substring fn (+ 2 start-vn)))
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base-version-list)) ; this one doesn't make the cut
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(dired-flag-this-line-for-DEATH))))
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(defun dired-flag-this-line-for-DEATH ()
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(beginning-of-line)
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(delete-char 1)
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(insert "D"))
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(defun dired-flag-backup-files ()
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"Flag all backup files (names ending with ~) for deletion."
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(interactive)
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(save-excursion
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(let ((buffer-read-only nil))
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(goto-char (point-min))
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(while (not (eobp))
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(and (not (looking-at " d"))
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(not (eolp))
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(if (fboundp 'backup-file-name-p)
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(let ((fn (dired-get-filename t t)))
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(if fn (backup-file-name-p fn)))
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(end-of-line)
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(forward-char -1)
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(looking-at "~"))
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(progn (beginning-of-line)
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(delete-char 1)
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(insert "D")))
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(forward-line 1)))))
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(defun dired-flag-backup-and-auto-save-files ()
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"Flag all backup and temporary files for deletion.
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Backup files have names ending in ~. Auto save file names usually
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start with #."
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(interactive)
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(dired-flag-backup-files)
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(dired-flag-auto-save-files))
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(defun dired-rename-file (to-file)
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"Rename this file to TO-FILE."
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(interactive
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(list (read-file-name (format "Rename %s to: "
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(file-name-nondirectory (dired-get-filename)))
|
||
nil (dired-get-filename))))
|
||
(setq to-file (expand-file-name to-file))
|
||
(rename-file (dired-get-filename) to-file)
|
||
(let ((buffer-read-only nil))
|
||
(beginning-of-line)
|
||
(delete-region (point) (progn (forward-line 1) (point)))
|
||
(setq to-file (expand-file-name to-file))
|
||
(dired-add-entry (file-name-directory to-file)
|
||
(file-name-nondirectory to-file))))
|
||
|
||
(defun dired-copy-file (to-file)
|
||
"Copy this file to TO-FILE."
|
||
(interactive "FCopy to: ")
|
||
(copy-file (dired-get-filename) to-file)
|
||
(setq to-file (expand-file-name to-file))
|
||
(dired-add-entry (file-name-directory to-file)
|
||
(file-name-nondirectory to-file)))
|
||
|
||
(defun dired-add-entry (directory filename)
|
||
;; If tree dired is implemented, this function will have to do
|
||
;; something smarter with the directory. Currently, just check
|
||
;; default directory, if same, add the new entry at point. With tree
|
||
;; dired, should call 'dired-current-directory' or similar. Note
|
||
;; that this adds the entry 'out of order' if files sorted by time,
|
||
;; etc.
|
||
(if (string-equal directory default-directory)
|
||
(let ((buffer-read-only nil))
|
||
(beginning-of-line)
|
||
(call-process "ls" nil t nil
|
||
"-d" dired-listing-switches (concat directory filename))
|
||
(forward-line -1)
|
||
(insert " ")
|
||
(dired-move-to-filename)
|
||
(let* ((beg (point))
|
||
(end (progn (end-of-line) (point))))
|
||
(setq filename (buffer-substring beg end))
|
||
(delete-region beg end)
|
||
(insert (file-name-nondirectory filename)))
|
||
(beginning-of-line))))
|
||
|
||
(defun dired-compress ()
|
||
"Compress this file."
|
||
(interactive)
|
||
(let* ((buffer-read-only nil)
|
||
(error-buffer (get-buffer-create " *Dired compress output*"))
|
||
(from-file (dired-get-filename))
|
||
(to-file (concat from-file ".Z")))
|
||
(if (string-match "\\.Z$" from-file)
|
||
(error "%s is already compressed!" from-file))
|
||
(message "Compressing %s..." from-file)
|
||
(unwind-protect
|
||
(progn
|
||
(save-excursion
|
||
(set-buffer error-buffer)
|
||
(erase-buffer))
|
||
;; Must have default-directory of dired buffer in call-process
|
||
(call-process "compress" nil error-buffer nil "-f" from-file)
|
||
(if (save-excursion
|
||
(set-buffer error-buffer)
|
||
(= 0 (buffer-size)))
|
||
(progn
|
||
(message "Compressing %s... done" from-file)
|
||
(kill-buffer error-buffer))
|
||
(display-buffer error-buffer)
|
||
(setq error-buffer nil)
|
||
(error "Compress error on %s." from-file)))
|
||
(if error-buffer (kill-buffer error-buffer)))
|
||
(dired-redisplay to-file)))
|
||
|
||
(defun dired-uncompress ()
|
||
"Uncompress this file."
|
||
(interactive)
|
||
(let* ((buffer-read-only nil)
|
||
(error-buffer (get-buffer-create " *Dired compress output*"))
|
||
(from-file (dired-get-filename))
|
||
(to-file (substring from-file 0 -2)))
|
||
(if (string-match "\\.Z$" from-file) nil
|
||
(error "%s is not compressed!" from-file))
|
||
(message "Uncompressing %s..." from-file)
|
||
(unwind-protect
|
||
(progn
|
||
(save-excursion
|
||
(set-buffer error-buffer)
|
||
(erase-buffer))
|
||
;; Must have default-directory of dired buffer in call-process
|
||
(call-process "uncompress" nil error-buffer nil "-f" from-file)
|
||
(if (save-excursion
|
||
(set-buffer error-buffer)
|
||
(= 0 (buffer-size)))
|
||
(progn
|
||
(message "Uncompressing %s... done" from-file)
|
||
(kill-buffer error-buffer))
|
||
(display-buffer error-buffer)
|
||
(setq error-buffer nil)
|
||
(error "Uncompress error on %s." from-file)))
|
||
(if error-buffer (kill-buffer error-buffer)))
|
||
(dired-redisplay to-file)))
|
||
|
||
(defun dired-byte-recompile ()
|
||
"Byte recompile this file."
|
||
(interactive)
|
||
(let* ((buffer-read-only nil)
|
||
(from-file (dired-get-filename))
|
||
(to-file (substring from-file 0 -3)))
|
||
(if (string-match "\\.el$" from-file) nil
|
||
(error "%s is uncompilable!" from-file))
|
||
(byte-compile-file from-file)))
|
||
|
||
(defun dired-chmod (mode)
|
||
"Change mode of this file."
|
||
(interactive "sChange to Mode: ")
|
||
(let ((buffer-read-only nil)
|
||
(file (dired-get-filename)))
|
||
(call-process "/bin/chmod" nil nil nil mode file)
|
||
(dired-redisplay file)))
|
||
|
||
(defun dired-chgrp (group)
|
||
"Change group of this file."
|
||
(interactive "sChange to Group: ")
|
||
(let ((buffer-read-only nil)
|
||
(file (dired-get-filename)))
|
||
(call-process "/bin/chgrp" nil nil nil group file)
|
||
(dired-redisplay file)))
|
||
|
||
(defun dired-chown (owner)
|
||
"Change Owner of this file."
|
||
(interactive "sChange to Owner: ")
|
||
(let ((buffer-read-only nil)
|
||
(file (dired-get-filename)))
|
||
(call-process (if (memq system-type '(hpux usg-unix-v))
|
||
"/bin/chown" "/etc/chown")
|
||
nil nil nil owner file)
|
||
(dired-redisplay file)))
|
||
|
||
(defun dired-redisplay (file) "Redisplay this line."
|
||
(beginning-of-line)
|
||
(delete-region (point) (progn (forward-line 1) (point)))
|
||
(if file (dired-add-entry (file-name-directory file)
|
||
(file-name-nondirectory file)))
|
||
(dired-move-to-filename))
|
||
|
||
(defun dired-do-deletions ()
|
||
"In dired, delete the files flagged for deletion."
|
||
(interactive)
|
||
(let (delete-list answer)
|
||
(save-excursion
|
||
(goto-char 1)
|
||
(while (re-search-forward "^D" nil t)
|
||
(setq delete-list
|
||
(cons (cons (dired-get-filename t) (1- (point)))
|
||
delete-list))))
|
||
(if (null delete-list)
|
||
(message "(No deletions requested)")
|
||
(save-window-excursion
|
||
(switch-to-buffer " *Deletions*")
|
||
(erase-buffer)
|
||
(setq fill-column 70)
|
||
(let ((l (reverse delete-list)))
|
||
;; Files should be in forward order for this loop.
|
||
(while l
|
||
(if (> (current-column) 59)
|
||
(insert ?\n)
|
||
(or (bobp)
|
||
(indent-to (* (/ (+ (current-column) 19) 20) 20) 1)))
|
||
(insert (car (car l)))
|
||
(setq l (cdr l))))
|
||
(goto-char (point-min))
|
||
(setq answer (yes-or-no-p "Delete these files? ")))
|
||
(if answer
|
||
(let ((l delete-list)
|
||
failures)
|
||
;; Files better be in reverse order for this loop!
|
||
;; That way as changes are made in the buffer
|
||
;; they do not shift the lines still to be changed.
|
||
(while l
|
||
(goto-char (cdr (car l)))
|
||
(let ((buffer-read-only nil))
|
||
(condition-case ()
|
||
(let ((fn (concat default-directory (car (car l)))))
|
||
(if (file-directory-p fn)
|
||
(progn
|
||
(call-process "rmdir" nil nil nil fn)
|
||
(if (file-exists-p fn) (delete-file fn)))
|
||
(delete-file fn))
|
||
(delete-region (point)
|
||
(progn (forward-line 1) (point))))
|
||
(error (delete-char 1)
|
||
(insert " ")
|
||
(setq failures (cons (car (car l)) failures)))))
|
||
(setq l (cdr l)))
|
||
(if failures
|
||
(message "Deletions failed: %s"
|
||
(prin1-to-string failures))))))))
|
||
|
||
(provide 'dired)
|