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295 lines
9.9 KiB
EmacsLisp
295 lines
9.9 KiB
EmacsLisp
;;; gnusmisc.el --- miscellaneous commands for GNUS newsreader
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;; Copyright (C) 1989, 1990, 1993 Free Software Foundation, Inc.
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;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
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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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(autoload 'timezone-make-date-arpa-standard "timezone")
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(put 'gnus-browse-killed-mode 'mode-class 'special)
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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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;; 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-list-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 it against the options line in 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-list-killed-groups ()
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"List the killed newsgroups.
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The keys y and C-y yank the newsgroup on the current line into the
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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 (gnus-gethash group gnus-killed-hashtb)))
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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-transpose-groups (arg)
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"Exchange current newsgroup and previous newsgroup.
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With argument ARG, takes previous newsgroup and moves it past ARG newsgroup."
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(interactive "p")
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;; BUG: last newsgroup and the last but one cannot be transposed
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;; since gnus-group-search-forward does not move forward beyond the
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;; last. If we instead use forward-line, no problem, but I don't
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;; want to use it for later extension.
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(while (> arg 0)
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(gnus-group-search-forward t t)
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(gnus-group-kill-group 1)
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(gnus-group-search-forward nil t)
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(gnus-group-yank-group)
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(gnus-group-search-forward nil t)
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(setq arg (1- arg))
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))
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(defun gnus-group-kill-region (begin end)
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"Kill newsgroups in current region (excluding current point).
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The killed newsgroups can be yanked by using \\[gnus-group-yank-group]."
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(interactive "r")
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(let ((lines
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;; Exclude a line where current point is on.
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(1-
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;; Count lines.
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(save-excursion
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(count-lines
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(progn
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(goto-char begin)
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(beginning-of-line)
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(point))
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(progn
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(goto-char end)
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(end-of-line)
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(point)))))))
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(goto-char begin)
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(beginning-of-line) ;Important when LINES < 1
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(gnus-group-kill-group lines)))
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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 containing 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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;; Huuum. It this right?
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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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;;; Rewrite Date: field in GMT to local
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(defun gnus-gmt-to-local ()
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"Rewrite Date: field described in GMT to local in current buffer.
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The variable gnus-local-timezone is used for local time zone.
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Intended to be used with gnus-article-prepare-hook."
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(save-excursion
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(save-restriction
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(widen)
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(goto-char (point-min))
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(narrow-to-region (point-min)
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(progn (search-forward "\n\n" nil 'move) (point)))
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(goto-char (point-min))
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(if (re-search-forward "^Date:[ \t]\\(.*\\)$" nil t)
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(let ((buffer-read-only nil)
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(date (buffer-substring (match-beginning 1) (match-end 1))))
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(delete-region (match-beginning 1) (match-end 1))
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(insert
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(timezone-make-date-arpa-standard date nil gnus-local-timezone))
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))
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)))
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(provide 'gnusmisc)
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;;; gnusmisc.el ends here
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