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221 lines
7.8 KiB
EmacsLisp
221 lines
7.8 KiB
EmacsLisp
;;; gnusmisc.el --- miscellaneous commands for GNUS newsreader
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;; Copyright (C) 1989, 1990 Free Software Foundation, Inc.
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;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
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;; Keywords: news
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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 2, 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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;;; Code:
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(require 'gnus)
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;;;
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;;; GNUS Browse-Killed Mode
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;;;
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;; Some ideas are due to roland@wheaties.ai.mit.edu (Roland McGrath).
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;; I'd like to thank him very much.
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(defvar gnus-Browse-killed-mode-hook nil
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"*A hook for GNUS Browse-Killed Mode.")
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(defvar gnus-Browse-killed-buffer "*Killed Newsgroup*")
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(defvar gnus-Browse-killed-mode-map nil)
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(defvar gnus-winconf-browse-killed nil)
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(put 'gnus-Browse-killed-mode 'mode-class 'special)
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;; Make the buffer to be managed by GNUS.
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(or (memq gnus-Browse-killed-buffer gnus-buffer-list)
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(setq gnus-buffer-list
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(cons gnus-Browse-killed-buffer gnus-buffer-list)))
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(if gnus-Browse-killed-mode-map
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nil
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(setq gnus-Browse-killed-mode-map (make-keymap))
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(suppress-keymap gnus-Browse-killed-mode-map t)
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(define-key gnus-Browse-killed-mode-map " " 'gnus-Group-next-group)
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(define-key gnus-Browse-killed-mode-map "\177" 'gnus-Group-prev-group)
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(define-key gnus-Browse-killed-mode-map "\C-n" 'gnus-Group-next-group)
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(define-key gnus-Browse-killed-mode-map "\C-p" 'gnus-Group-prev-group)
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(define-key gnus-Browse-killed-mode-map "n" 'gnus-Group-next-group)
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(define-key gnus-Browse-killed-mode-map "p" 'gnus-Group-prev-group)
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(define-key gnus-Browse-killed-mode-map "y" 'gnus-Browse-killed-yank)
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(define-key gnus-Browse-killed-mode-map "\C-y" 'gnus-Browse-killed-yank)
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(define-key gnus-Browse-killed-mode-map "l" 'gnus-Browse-killed-groups)
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(define-key gnus-Browse-killed-mode-map "q" 'gnus-Browse-killed-exit)
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(define-key gnus-Browse-killed-mode-map "\C-c\C-c" 'gnus-Browse-killed-exit)
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(define-key gnus-Browse-killed-mode-map "\C-c\C-i" 'gnus-Info-find-node))
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(defun gnus-Browse-killed-mode ()
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"Major mode for browsing the killed newsgroups.
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All normal editing commands are turned off.
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Instead, these commands are available:
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\\{gnus-Browse-killed-mode-map}
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The killed newsgroups are saved in the quick startup file \".newsrc.el\"
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unless disabled inthe options line of the startup file \".newsrc\".
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Entry to this mode calls `gnus-Browse-killed-mode-hook' with no arguments
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if that value is non-nil."
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(interactive)
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(kill-all-local-variables)
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;; Gee. Why don't you upgrade?
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(cond ((boundp 'mode-line-modified)
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(setq mode-line-modified "--- "))
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((listp (default-value 'mode-line-format))
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(setq mode-line-format
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(cons "--- " (cdr (default-value 'mode-line-format)))))
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(t
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(setq mode-line-format
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"--- GNUS: Killed Newsgroups %[(%m)%]----%3p-%-")))
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(setq major-mode 'gnus-Browse-killed-mode)
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(setq mode-name "Browse-Killed")
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(setq mode-line-buffer-identification "GNUS: Killed Newsgroups")
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(use-local-map gnus-Browse-killed-mode-map)
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(buffer-flush-undo (current-buffer))
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(setq buffer-read-only t) ;Disable modification
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(run-hooks 'gnus-Browse-killed-mode-hook))
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(defun gnus-Browse-killed-groups ()
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"Browse the killed newsgroups.
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\\<gnus-Browse-killed-mode-map>\\[gnus-Browse-killed-yank] yanks the newsgroup on the current line into the Newsgroups buffer."
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(interactive)
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(or gnus-killed-assoc
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(error "No killed newsgroups"))
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;; Save current window configuration if this is first invocation..
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(or (get-buffer-window gnus-Browse-killed-buffer)
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(setq gnus-winconf-browse-killed
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(current-window-configuration)))
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;; Prepare browsing buffer.
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(pop-to-buffer (get-buffer-create gnus-Browse-killed-buffer))
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(gnus-Browse-killed-mode)
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(let ((buffer-read-only nil)
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(killed-assoc gnus-killed-assoc))
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(erase-buffer)
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(while killed-assoc
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(insert (gnus-Group-prepare-line (car killed-assoc)))
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(setq killed-assoc (cdr killed-assoc)))
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(goto-char (point-min))
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))
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(defun gnus-Browse-killed-yank ()
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"Yank current newsgroup to Newsgroup buffer."
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(interactive)
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(let ((group (gnus-Group-group-name)))
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(if group
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(let* ((buffer-read-only nil)
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(killed (assoc group gnus-killed-assoc)))
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(pop-to-buffer gnus-Group-buffer) ;Needed to adjust point.
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(if killed
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(gnus-Group-insert-group killed))
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(pop-to-buffer gnus-Browse-killed-buffer)
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(beginning-of-line)
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(delete-region (point)
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(progn (forward-line 1) (point)))
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)))
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(gnus-Browse-killed-check-buffer))
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(defun gnus-Browse-killed-check-buffer ()
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"Exit if the buffer is empty by deleting the window and killing the buffer."
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(and (null gnus-killed-assoc)
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(get-buffer gnus-Browse-killed-buffer)
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(gnus-Browse-killed-exit)))
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(defun gnus-Browse-killed-exit ()
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"Exit this mode by deleting the window and killing the buffer."
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(interactive)
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(and (get-buffer-window gnus-Browse-killed-buffer)
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(delete-window (get-buffer-window gnus-Browse-killed-buffer)))
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(kill-buffer gnus-Browse-killed-buffer)
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;; Restore previous window configuration if available.
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(and gnus-winconf-browse-killed
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(set-window-configuration gnus-winconf-browse-killed))
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(setq gnus-winconf-browse-killed nil))
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;;;
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;;; kill/yank newsgroup commands of GNUS Group Mode
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;;;
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(defun gnus-Group-kill-group (n)
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"Kill newsgroup on current line, repeated prefix argument N times.
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The killed newsgroups can be yanked by using \\[gnus-Group-yank-group]."
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(interactive "p")
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(let ((buffer-read-only nil)
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(group nil))
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(while (> n 0)
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(setq group (gnus-Group-group-name))
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(or group
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(signal 'end-of-buffer nil))
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(beginning-of-line)
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(delete-region (point)
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(progn (forward-line 1) (point)))
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(gnus-kill-newsgroup group)
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(setq n (1- n))
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;; Add to killed newsgroups in the buffer if exists.
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(if (get-buffer gnus-Browse-killed-buffer)
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(save-excursion
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(set-buffer gnus-Browse-killed-buffer)
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(let ((buffer-read-only nil))
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(goto-char (point-min))
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(insert (gnus-Group-prepare-line (car gnus-killed-assoc)))
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)))
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)
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(search-forward ":" nil t)
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))
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(defun gnus-Group-yank-group ()
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"Yank the last newsgroup killed with \\[gnus-Group-kill-group],
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inserting it before the newsgroup on the line containging point."
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(interactive)
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(gnus-Group-insert-group (car gnus-killed-assoc))
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;; Remove killed newsgroups from the buffer if exists.
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(if (get-buffer gnus-Browse-killed-buffer)
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(save-excursion
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(set-buffer gnus-Browse-killed-buffer)
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(let ((buffer-read-only nil))
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(goto-char (point-min))
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(delete-region (point-min)
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(progn (forward-line 1) (point)))
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)))
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(gnus-Browse-killed-check-buffer))
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(defun gnus-Group-insert-group (info)
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"Insert newsgroup at current line using `gnus-newsrc-assoc' INFO."
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(if (null gnus-killed-assoc)
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(error "No killed newsgroups"))
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(if (not gnus-have-all-newsgroups)
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(error
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(substitute-command-keys
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"Not all newsgroups are displayed. Type \\[gnus-Group-list-all-groups] to display all newsgroups.")))
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(let ((buffer-read-only nil)
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(group (gnus-Group-group-name)))
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(gnus-insert-newsgroup info group)
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(beginning-of-line)
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(insert (gnus-Group-prepare-line info))
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(forward-line -1)
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(search-forward ":" nil t)
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))
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(provide 'gnusmisc)
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;;; gnusmisc.el ends here
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