[bpt/emacs.git] / lisp / pcmpl-unix.el

;;; pcmpl-unix --- standard UNIX completions

;; Copyright (C) 1999, 2000 Free Software Foundation

;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Code:

(provide 'pcmpl-unix)

(require 'pcomplete)

;; User Variables:

(defcustom pcmpl-unix-group-file "/etc/group"
  "*If non-nil, a string naming the group file on your system."
  :type 'file
  :group 'pcmpl-unix)

(defcustom pcmpl-unix-passwd-file "/etc/passwd"
  "*If non-nil, a string naming the passwd file on your system."
  :type 'file
  :group 'pcmpl-unix)

;; Functions:

;;;###autoload
(defun pcomplete/cd ()
  "Completion for `cd'."
  (pcomplete-here (pcomplete-dirs)))

;;;###autoload
(defalias 'pcomplete/pushd 'pcomplete/cd)

;;;###autoload
(defun pcomplete/rmdir ()
  "Completion for `rmdir'."
  (while (pcomplete-here (pcomplete-dirs))))

;;;###autoload
(defun pcomplete/rm ()
  "Completion for `rm'."
  (let ((pcomplete-help "(fileutils)rm invocation"))
    (pcomplete-opt "dfirRv")
    (while (pcomplete-here (pcomplete-all-entries) nil
			   'expand-file-name))))

;;;###autoload
(defun pcomplete/xargs ()
  "Completion for `xargs'."
  (pcomplete-here (funcall pcomplete-command-completion-function))
  (funcall (or (pcomplete-find-completion-function (pcomplete-arg 1))
	       pcomplete-default-completion-function)))

;;;###autoload
(defalias 'pcomplete/time 'pcomplete/xargs)

;;;###autoload
(defun pcomplete/which ()
  "Completion for `which'."
  (while (pcomplete-here (funcall pcomplete-command-completion-function))))

(defun pcmpl-unix-read-passwd-file (file)
  "Return an alist correlating gids to group names in FILE."
  (let (names)
    (when (file-readable-p file)
      (with-temp-buffer
	(insert-file-contents file)
	(goto-char (point-min))
	(while (not (eobp))
	  (let* ((fields
		  (split-string (buffer-substring
				 (point) (progn (end-of-line)
						(point))) ":")))
	    (setq names (cons (nth 0 fields) names)))
	  (forward-line))))
    (pcomplete-uniqify-list names)))

(defsubst pcmpl-unix-group-names ()
  "Read the contents of /etc/group for group names."
  (if pcmpl-unix-group-file
      (pcmpl-unix-read-passwd-file pcmpl-unix-group-file)))

(defsubst pcmpl-unix-user-names ()
  "Read the contents of /etc/passwd for user names."
  (if pcmpl-unix-passwd-file
      (pcmpl-unix-read-passwd-file pcmpl-unix-passwd-file)))

;;;###autoload
(defun pcomplete/chown ()
  "Completion for the `chown' command."
  (unless (pcomplete-match "\\`-")
    (if (pcomplete-match "\\`[^.]*\\'" 0)
	(pcomplete-here* (pcmpl-unix-user-names))
      (if (pcomplete-match "\\.\\([^.]*\\)\\'" 0)
	  (pcomplete-here* (pcmpl-unix-group-names)
			   (pcomplete-match-string 1 0))
	(pcomplete-here*))))
  (while (pcomplete-here (pcomplete-entries))))

;;;###autoload
(defun pcomplete/chgrp ()
  "Completion for the `chgrp' command."
  (unless (pcomplete-match "\\`-")
    (pcomplete-here* (pcmpl-unix-group-names)))
  (while (pcomplete-here (pcomplete-entries))))

;;; pcmpl-unix.el ends here
Commit	Line	Data
4fa9f636 GM	1	;;; pcmpl-unix --- standard UNIX completions
	2
	3	;; Copyright (C) 1999, 2000 Free Software Foundation
	4
	5	;; This file is part of GNU Emacs.
	6
	7	;; GNU Emacs is free software; you can redistribute it and/or modify
	8	;; it under the terms of the GNU General Public License as published by
	9	;; the Free Software Foundation; either version 2, or (at your option)
	10	;; any later version.
	11
	12	;; GNU Emacs is distributed in the hope that it will be useful,
	13	;; but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	;; GNU General Public License for more details.
	16
	17	;; You should have received a copy of the GNU General Public License
	18	;; along with GNU Emacs; see the file COPYING. If not, write to the
	19	;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	20	;; Boston, MA 02111-1307, USA.
	21
	22	;;; Code:
	23
	24	(provide 'pcmpl-unix)
	25
	26	(require 'pcomplete)
	27
	28	;; User Variables:
	29
	30	(defcustom pcmpl-unix-group-file "/etc/group"
	31	"*If non-nil, a string naming the group file on your system."
	32	:type 'file
	33	:group 'pcmpl-unix)
	34
	35	(defcustom pcmpl-unix-passwd-file "/etc/passwd"
	36	"*If non-nil, a string naming the passwd file on your system."
	37	:type 'file
	38	:group 'pcmpl-unix)
	39
	40	;; Functions:
	41
	42	;;;###autoload
	43	(defun pcomplete/cd ()
	44	"Completion for `cd'."
	45	(pcomplete-here (pcomplete-dirs)))
	46
	47	;;;###autoload
	48	(defalias 'pcomplete/pushd 'pcomplete/cd)
	49
	50	;;;###autoload
	51	(defun pcomplete/rmdir ()
	52	"Completion for `rmdir'."
	53	(while (pcomplete-here (pcomplete-dirs))))
	54
	55	;;;###autoload
	56	(defun pcomplete/rm ()
	57	"Completion for `rm'."
	58	(let ((pcomplete-help "(fileutils)rm invocation"))
	59	(pcomplete-opt "dfirRv")
	60	(while (pcomplete-here (pcomplete-all-entries) nil
	61	'expand-file-name))))
	62
	63	;;;###autoload
	64	(defun pcomplete/xargs ()
65	"Completion for `xargs'."
66	(pcomplete-here (funcall pcomplete-command-completion-function))
67	(funcall (or (pcomplete-find-completion-function (pcomplete-arg 1))
68	pcomplete-default-completion-function)))
69
70	;;;###autoload
71	(defalias 'pcomplete/time 'pcomplete/xargs)
72
73	;;;###autoload
74	(defun pcomplete/which ()
75	"Completion for `which'."
76	(while (pcomplete-here (funcall pcomplete-command-completion-function))))
77
78	(defun pcmpl-unix-read-passwd-file (file)
79	"Return an alist correlating gids to group names in FILE."
80	(let (names)
81	(when (file-readable-p file)
82	(with-temp-buffer
83	(insert-file-contents file)
84	(goto-char (point-min))
85	(while (not (eobp))
86	(let* ((fields
87	(split-string (buffer-substring
88	(point) (progn (end-of-line)
89	(point))) ":")))
90	(setq names (cons (nth 0 fields) names)))
91	(forward-line))))
92	(pcomplete-uniqify-list names)))
93
94	(defsubst pcmpl-unix-group-names ()
95	"Read the contents of /etc/group for group names."
96	(if pcmpl-unix-group-file
97	(pcmpl-unix-read-passwd-file pcmpl-unix-group-file)))
98
99	(defsubst pcmpl-unix-user-names ()
100	"Read the contents of /etc/passwd for user names."
101	(if pcmpl-unix-passwd-file
102	(pcmpl-unix-read-passwd-file pcmpl-unix-passwd-file)))
103
104	;;;###autoload
105	(defun pcomplete/chown ()
106	"Completion for the `chown' command."
107	(unless (pcomplete-match "\\`-")
108	(if (pcomplete-match "\\`[^.]*\\'" 0)
109	(pcomplete-here* (pcmpl-unix-user-names))
110	(if (pcomplete-match "\\.\\([^.]*\\)\\'" 0)
111	(pcomplete-here* (pcmpl-unix-group-names)
112	(pcomplete-match-string 1 0))
113	(pcomplete-here*))))
114	(while (pcomplete-here (pcomplete-entries))))
115
116	;;;###autoload
117	(defun pcomplete/chgrp ()
118	"Completion for the `chgrp' command."
119	(unless (pcomplete-match "\\`-")
120	(pcomplete-here* (pcmpl-unix-group-names)))
121	(while (pcomplete-here (pcomplete-entries))))
122
123	;;; pcmpl-unix.el ends here