mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-24 10:38:38 +00:00
295 lines
9.9 KiB
EmacsLisp
295 lines
9.9 KiB
EmacsLisp
;;; gnusmisc.el --- miscellaneous commands for GNUS newsreader
|
||
|
||
;; Copyright (C) 1989, 1990, 1993 Free Software Foundation, Inc.
|
||
|
||
;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
|
||
;; Keywords: news
|
||
|
||
;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
|
||
|
||
;;; Code:
|
||
|
||
(require 'gnus)
|
||
|
||
;;;
|
||
;;; GNUS Browse-Killed Mode
|
||
;;;
|
||
|
||
;; Some ideas are due to roland@wheaties.ai.mit.edu (Roland McGrath).
|
||
;; I'd like to thank him very much.
|
||
|
||
(defvar gnus-browse-killed-mode-hook nil
|
||
"*A hook for GNUS Browse-Killed Mode.")
|
||
|
||
(defvar gnus-browse-killed-buffer "*Killed Newsgroup*")
|
||
(defvar gnus-browse-killed-mode-map nil)
|
||
(defvar gnus-winconf-browse-killed nil)
|
||
|
||
(autoload 'timezone-make-date-arpa-standard "timezone")
|
||
|
||
(put 'gnus-browse-killed-mode 'mode-class 'special)
|
||
|
||
|
||
;;;
|
||
;;; GNUS Browse-Killed Mode
|
||
;;;
|
||
|
||
;; Some ideas are due to roland@wheaties.ai.mit.edu (Roland McGrath).
|
||
;; I'd like to thank him very much.
|
||
|
||
;; Make the buffer to be managed by GNUS.
|
||
|
||
(or (memq gnus-browse-killed-buffer gnus-buffer-list)
|
||
(setq gnus-buffer-list
|
||
(cons gnus-browse-killed-buffer gnus-buffer-list)))
|
||
|
||
(if gnus-browse-killed-mode-map
|
||
nil
|
||
(setq gnus-browse-killed-mode-map (make-keymap))
|
||
(suppress-keymap gnus-browse-killed-mode-map t)
|
||
(define-key gnus-browse-killed-mode-map " " 'gnus-group-next-group)
|
||
(define-key gnus-browse-killed-mode-map "\177" 'gnus-group-prev-group)
|
||
(define-key gnus-browse-killed-mode-map "\C-n" 'gnus-group-next-group)
|
||
(define-key gnus-browse-killed-mode-map "\C-p" 'gnus-group-prev-group)
|
||
(define-key gnus-browse-killed-mode-map "n" 'gnus-group-next-group)
|
||
(define-key gnus-browse-killed-mode-map "p" 'gnus-group-prev-group)
|
||
(define-key gnus-browse-killed-mode-map "y" 'gnus-browse-killed-yank)
|
||
(define-key gnus-browse-killed-mode-map "\C-y" 'gnus-browse-killed-yank)
|
||
(define-key gnus-browse-killed-mode-map "l" 'gnus-list-killed-groups)
|
||
(define-key gnus-browse-killed-mode-map "q" 'gnus-browse-killed-exit)
|
||
(define-key gnus-browse-killed-mode-map "\C-c\C-c" 'gnus-browse-killed-exit)
|
||
(define-key gnus-browse-killed-mode-map "\C-c\C-i" 'gnus-info-find-node))
|
||
|
||
(defun gnus-browse-killed-mode ()
|
||
"Major mode for browsing the killed newsgroups.
|
||
All normal editing commands are turned off.
|
||
Instead, these commands are available:
|
||
\\{gnus-browse-killed-mode-map}
|
||
|
||
The killed newsgroups are saved in the quick startup file (.newsrc.el)
|
||
unless it against the options line in the startup file (.newsrc).
|
||
|
||
Entry to this mode calls gnus-browse-killed-mode-hook with no arguments,
|
||
if that value is non-nil."
|
||
(interactive)
|
||
(kill-all-local-variables)
|
||
;; Gee. Why don't you upgrade?
|
||
(cond ((boundp 'mode-line-modified)
|
||
(setq mode-line-modified "--- "))
|
||
((listp (default-value 'mode-line-format))
|
||
(setq mode-line-format
|
||
(cons "--- " (cdr (default-value 'mode-line-format)))))
|
||
(t
|
||
(setq mode-line-format
|
||
"--- GNUS: Killed Newsgroups %[(%m)%]----%3p-%-")))
|
||
(setq major-mode 'gnus-browse-killed-mode)
|
||
(setq mode-name "Browse-Killed")
|
||
(setq mode-line-buffer-identification "GNUS: Killed Newsgroups")
|
||
(use-local-map gnus-browse-killed-mode-map)
|
||
(buffer-flush-undo (current-buffer))
|
||
(setq buffer-read-only t) ;Disable modification
|
||
(run-hooks 'gnus-browse-killed-mode-hook))
|
||
|
||
(defun gnus-list-killed-groups ()
|
||
"List the killed newsgroups.
|
||
The keys y and C-y yank the newsgroup on the current line into the
|
||
Newsgroups buffer."
|
||
(interactive)
|
||
(or gnus-killed-assoc
|
||
(error "No killed newsgroups"))
|
||
;; Save current window configuration if this is first invocation..
|
||
(or (get-buffer-window gnus-browse-killed-buffer)
|
||
(setq gnus-winconf-browse-killed
|
||
(current-window-configuration)))
|
||
;; Prepare browsing buffer.
|
||
(pop-to-buffer (get-buffer-create gnus-browse-killed-buffer))
|
||
(gnus-browse-killed-mode)
|
||
(let ((buffer-read-only nil)
|
||
(killed-assoc gnus-killed-assoc))
|
||
(erase-buffer)
|
||
(while killed-assoc
|
||
(insert (gnus-group-prepare-line (car killed-assoc)))
|
||
(setq killed-assoc (cdr killed-assoc)))
|
||
(goto-char (point-min))
|
||
))
|
||
|
||
(defun gnus-browse-killed-yank ()
|
||
"Yank current newsgroup to Newsgroup buffer."
|
||
(interactive)
|
||
(let ((group (gnus-group-group-name)))
|
||
(if group
|
||
(let* ((buffer-read-only nil)
|
||
(killed (gnus-gethash group gnus-killed-hashtb)))
|
||
(pop-to-buffer gnus-group-buffer) ;Needed to adjust point.
|
||
(if killed
|
||
(gnus-group-insert-group killed))
|
||
(pop-to-buffer gnus-browse-killed-buffer)
|
||
(beginning-of-line)
|
||
(delete-region (point)
|
||
(progn (forward-line 1) (point)))
|
||
)))
|
||
(gnus-browse-killed-check-buffer))
|
||
|
||
(defun gnus-browse-killed-check-buffer ()
|
||
"Exit if the buffer is empty by deleting the window and killing the buffer."
|
||
(and (null gnus-killed-assoc)
|
||
(get-buffer gnus-browse-killed-buffer)
|
||
(gnus-browse-killed-exit)))
|
||
|
||
(defun gnus-browse-killed-exit ()
|
||
"Exit this mode by deleting the window and killing the buffer."
|
||
(interactive)
|
||
(and (get-buffer-window gnus-browse-killed-buffer)
|
||
(delete-window (get-buffer-window gnus-browse-killed-buffer)))
|
||
(kill-buffer gnus-browse-killed-buffer)
|
||
;; Restore previous window configuration if available.
|
||
(and gnus-winconf-browse-killed
|
||
(set-window-configuration gnus-winconf-browse-killed))
|
||
(setq gnus-winconf-browse-killed nil))
|
||
|
||
|
||
;;;
|
||
;;; kill/yank newsgroup commands of GNUS Group Mode
|
||
;;;
|
||
|
||
(defun gnus-group-transpose-groups (arg)
|
||
"Exchange current newsgroup and previous newsgroup.
|
||
With argument ARG, takes previous newsgroup and moves it past ARG newsgroup."
|
||
(interactive "p")
|
||
;; BUG: last newsgroup and the last but one cannot be transposed
|
||
;; since gnus-group-search-forward does not move forward beyond the
|
||
;; last. If we instead use forward-line, no problem, but I don't
|
||
;; want to use it for later extension.
|
||
(while (> arg 0)
|
||
(gnus-group-search-forward t t)
|
||
(gnus-group-kill-group 1)
|
||
(gnus-group-search-forward nil t)
|
||
(gnus-group-yank-group)
|
||
(gnus-group-search-forward nil t)
|
||
(setq arg (1- arg))
|
||
))
|
||
|
||
(defun gnus-group-kill-region (begin end)
|
||
"Kill newsgroups in current region (excluding current point).
|
||
The killed newsgroups can be yanked by using \\[gnus-group-yank-group]."
|
||
(interactive "r")
|
||
(let ((lines
|
||
;; Exclude a line where current point is on.
|
||
(1-
|
||
;; Count lines.
|
||
(save-excursion
|
||
(count-lines
|
||
(progn
|
||
(goto-char begin)
|
||
(beginning-of-line)
|
||
(point))
|
||
(progn
|
||
(goto-char end)
|
||
(end-of-line)
|
||
(point)))))))
|
||
(goto-char begin)
|
||
(beginning-of-line) ;Important when LINES < 1
|
||
(gnus-group-kill-group lines)))
|
||
|
||
(defun gnus-group-kill-group (n)
|
||
"Kill newsgroup on current line, repeated prefix argument N times.
|
||
The killed newsgroups can be yanked by using \\[gnus-group-yank-group]."
|
||
(interactive "p")
|
||
(let ((buffer-read-only nil)
|
||
(group nil))
|
||
(while (> n 0)
|
||
(setq group (gnus-group-group-name))
|
||
(or group
|
||
(signal 'end-of-buffer nil))
|
||
(beginning-of-line)
|
||
(delete-region (point)
|
||
(progn (forward-line 1) (point)))
|
||
(gnus-kill-newsgroup group)
|
||
(setq n (1- n))
|
||
;; Add to killed newsgroups in the buffer if exists.
|
||
(if (get-buffer gnus-browse-killed-buffer)
|
||
(save-excursion
|
||
(set-buffer gnus-browse-killed-buffer)
|
||
(let ((buffer-read-only nil))
|
||
(goto-char (point-min))
|
||
(insert (gnus-group-prepare-line (car gnus-killed-assoc)))
|
||
)))
|
||
)
|
||
(search-forward ":" nil t)
|
||
))
|
||
|
||
(defun gnus-group-yank-group ()
|
||
"Yank the last newsgroup killed with \\[gnus-group-kill-group],
|
||
inserting it before the newsgroup on the line containing point."
|
||
(interactive)
|
||
(gnus-group-insert-group (car gnus-killed-assoc))
|
||
;; Remove killed newsgroups from the buffer if exists.
|
||
(if (get-buffer gnus-browse-killed-buffer)
|
||
(save-excursion
|
||
(set-buffer gnus-browse-killed-buffer)
|
||
(let ((buffer-read-only nil))
|
||
(goto-char (point-min))
|
||
(delete-region (point-min)
|
||
(progn (forward-line 1) (point)))
|
||
)))
|
||
(gnus-browse-killed-check-buffer))
|
||
|
||
(defun gnus-group-insert-group (info)
|
||
"Insert newsgroup at current line using gnus-newsrc-assoc INFO."
|
||
(if (null gnus-killed-assoc)
|
||
(error "No killed newsgroups"))
|
||
;; Huuum. It this right?
|
||
;;(if (not gnus-have-all-newsgroups)
|
||
;; (error
|
||
;; (substitute-command-keys
|
||
;; "Not all newsgroups are displayed. Type \\[gnus-group-list-all-groups] to display all newsgroups.")))
|
||
(let ((buffer-read-only nil)
|
||
(group (gnus-group-group-name)))
|
||
(gnus-insert-newsgroup info group)
|
||
(beginning-of-line)
|
||
(insert (gnus-group-prepare-line info))
|
||
(forward-line -1)
|
||
(search-forward ":" nil t)
|
||
))
|
||
|
||
|
||
;;; Rewrite Date: field in GMT to local
|
||
|
||
(defun gnus-gmt-to-local ()
|
||
"Rewrite Date: field described in GMT to local in current buffer.
|
||
The variable gnus-local-timezone is used for local time zone.
|
||
Intended to be used with gnus-article-prepare-hook."
|
||
(save-excursion
|
||
(save-restriction
|
||
(widen)
|
||
(goto-char (point-min))
|
||
(narrow-to-region (point-min)
|
||
(progn (search-forward "\n\n" nil 'move) (point)))
|
||
(goto-char (point-min))
|
||
(if (re-search-forward "^Date:[ \t]\\(.*\\)$" nil t)
|
||
(let ((buffer-read-only nil)
|
||
(date (buffer-substring (match-beginning 1) (match-end 1))))
|
||
(delete-region (match-beginning 1) (match-end 1))
|
||
(insert
|
||
(timezone-make-date-arpa-standard date nil gnus-local-timezone))
|
||
))
|
||
)))
|
||
|
||
(provide 'gnusmisc)
|
||
|
||
;;; gnusmisc.el ends here
|