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|
;;; 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
|
