74 lines
3.1 KiB
EmacsLisp
74 lines
3.1 KiB
EmacsLisp
;; Dired options
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;; On a GNU system, ls has the option to sort folders first.
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(if (string-match "^gnu.*" (prin1-to-string system-type))
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(setq dired-listing-switches "--group-directories-first -lh")
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(setq dired-listing-switches "-lh"))
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(setq wdired-allow-to-change-permissions t)
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(defvar dired-showing-hidden nil "If dired is displaying hidden files or not.")
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(defvar dired-showing-humansize t "If dired is displaying humansize or not.")
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(defun dired-toggle-hidden ()
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"Toggle displaying hidden files in dired."
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(interactive)
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(let (;; Regexp for finding (possibly embedded) -a switches.
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(switch-regexp "\\(\\`\\| \\)-\\([b-zA-Z]*\\)\\(a\\)\\([^ ]*\\)")
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case-fold-search)
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;; Remove the -a switch.
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(while (string-match switch-regexp dired-actual-switches)
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(if (and (equal (match-string 2 dired-actual-switches) "")
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(equal (match-string 4 dired-actual-switches) ""))
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;; Remove a stand-alone -a switch.
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(setq dired-actual-switches
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(replace-match "" t t dired-actual-switches))
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;; Remove a switch of the form -XaY for some X and Y.
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(setq dired-actual-switches
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(replace-match "" t t dired-actual-switches 3))))
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;; Now, if we weren't sorting by date before, add the -a switch. Some
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;; simple-minded ls implementations (eg ftp servers) only allow a single
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;; option string, so try not to add " -a" if possible.
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(if dired-showing-hidden
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(setq dired-showing-hidden nil)
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(progn
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(setq dired-actual-switches
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(concat dired-actual-switches
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(if (string-match-p "\\`-[[:alnum:]]+\\'"
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dired-actual-switches)
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"a" " -a")))
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(setq dired-showing-hidden t))))
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;; (dired-sort-set-mode-line)
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(revert-buffer))
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(defun dired-toggle-humansize ()
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"Toggle displaying humansize in dired."
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(interactive)
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(let ((switch-regexp "\\(\\`\\| \\)-\\([a-gi-zA-Z]*\\)\\(h\\)\\([^ ]*\\)")
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case-fold-search)
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(while (string-match switch-regexp dired-actual-switches)
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(if (and (equal (match-string 2 dired-actual-switches) "")
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(equal (match-string 4 dired-actual-switches) ""))
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(setq dired-actual-switches
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(replace-match "" t t dired-actual-switches))
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(setq dired-actual-switches
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(replace-match "" t t dired-actual-switches 3))))
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(if dired-showing-humansize
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(setq dired-showing-humansize nil)
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(progn
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(setq dired-actual-switches
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(concat dired-actual-switches
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(if (string-match-p "\\`-[[:alnum:]]+\\'"
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dired-actual-switches)
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"h" " -h")))
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(setq dired-showing-humansize t))))
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(revert-buffer))
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(local-set-key (kbd "C-c a") 'dired-toggle-hidden)
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(local-set-key (kbd "C-c h") 'dired-toggle-humansize)
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(local-set-key (kbd "<left>") 'dired-up-directory)
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(local-set-key (kbd "<right>") 'dired-find-file)
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(local-set-key (kbd "SPC") 'dired-mark)
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(local-set-key (kbd "<backspace>") 'dired-up-directory)
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(local-set-key (kbd "b") 'dired-up-directory)
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(provide 'mode-dired)
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