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0d9724864a
* nnbabyl.el (nnbabyl-request-expire-articles): Ditto. * nnmbox.el (nnmbox-request-expire-articles): Ditto. * nnmh.el (nnmh-request-expire-articles): Implemented expiry-target for nnmh backend.
600 lines
19 KiB
EmacsLisp
600 lines
19 KiB
EmacsLisp
;;; nnmbox.el --- mail mbox access for Gnus
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;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
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;; Free Software Foundation, Inc.
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;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
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;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
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;; Keywords: news, mail
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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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;; 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 the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; For an overview of what the interface functions do, please see the
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;; Gnus sources.
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;;; Code:
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(require 'nnheader)
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(require 'message)
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(require 'nnmail)
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(require 'nnoo)
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(eval-when-compile (require 'cl))
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(nnoo-declare nnmbox)
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(defvoo nnmbox-mbox-file (expand-file-name "~/mbox")
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"The name of the mail box file in the user's home directory.")
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(defvoo nnmbox-active-file (expand-file-name "~/.mbox-active")
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"The name of the active file for the mail box.")
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(defvoo nnmbox-get-new-mail t
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"If non-nil, nnmbox will check the incoming mail file and split the mail.")
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(defvoo nnmbox-prepare-save-mail-hook nil
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"Hook run narrowed to an article before saving.")
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(defconst nnmbox-version "nnmbox 1.0"
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"nnmbox version.")
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(defvoo nnmbox-current-group nil
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"Current nnmbox news group directory.")
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(defconst nnmbox-mbox-buffer nil)
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(defvoo nnmbox-status-string "")
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(defvoo nnmbox-group-alist nil)
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(defvoo nnmbox-active-timestamp nil)
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(defvoo nnmbox-file-coding-system mm-binary-coding-system)
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(defvoo nnmbox-file-coding-system-for-write nil)
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(defvoo nnmbox-active-file-coding-system mm-binary-coding-system)
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(defvoo nnmbox-active-file-coding-system-for-write nil)
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;;; Interface functions
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(nnoo-define-basics nnmbox)
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(deffoo nnmbox-retrieve-headers (sequence &optional newsgroup server fetch-old)
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(save-excursion
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(set-buffer nntp-server-buffer)
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(erase-buffer)
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(let ((number (length sequence))
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(count 0)
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article art-string start stop)
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(nnmbox-possibly-change-newsgroup newsgroup server)
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(while sequence
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(setq article (car sequence))
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(setq art-string (nnmbox-article-string article))
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(set-buffer nnmbox-mbox-buffer)
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(when (or (search-forward art-string nil t)
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(progn (goto-char (point-min))
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(search-forward art-string nil t)))
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(setq start
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(save-excursion
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(re-search-backward
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(concat "^" message-unix-mail-delimiter) nil t)
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(point)))
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(search-forward "\n\n" nil t)
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(setq stop (1- (point)))
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(set-buffer nntp-server-buffer)
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(insert (format "221 %d Article retrieved.\n" article))
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(insert-buffer-substring nnmbox-mbox-buffer start stop)
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(goto-char (point-max))
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(insert ".\n"))
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(setq sequence (cdr sequence))
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(setq count (1+ count))
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(and (numberp nnmail-large-newsgroup)
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(> number nnmail-large-newsgroup)
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(zerop (% count 20))
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(nnheader-message 5 "nnmbox: Receiving headers... %d%%"
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(/ (* count 100) number))))
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(and (numberp nnmail-large-newsgroup)
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(> number nnmail-large-newsgroup)
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(nnheader-message 5 "nnmbox: Receiving headers...done"))
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(set-buffer nntp-server-buffer)
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(nnheader-fold-continuation-lines)
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'headers)))
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(deffoo nnmbox-open-server (server &optional defs)
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(nnoo-change-server 'nnmbox server defs)
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(nnmbox-create-mbox)
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(cond
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((not (file-exists-p nnmbox-mbox-file))
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(nnmbox-close-server)
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(nnheader-report 'nnmbox "No such file: %s" nnmbox-mbox-file))
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((file-directory-p nnmbox-mbox-file)
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(nnmbox-close-server)
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(nnheader-report 'nnmbox "Not a regular file: %s" nnmbox-mbox-file))
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(t
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(nnheader-report 'nnmbox "Opened server %s using mbox %s" server
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nnmbox-mbox-file)
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t)))
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(deffoo nnmbox-close-server (&optional server)
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(when (and nnmbox-mbox-buffer
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(buffer-name nnmbox-mbox-buffer))
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(kill-buffer nnmbox-mbox-buffer))
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(nnoo-close-server 'nnmbox server)
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t)
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(deffoo nnmbox-server-opened (&optional server)
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(and (nnoo-current-server-p 'nnmbox server)
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nnmbox-mbox-buffer
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(buffer-name nnmbox-mbox-buffer)
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nntp-server-buffer
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(buffer-name nntp-server-buffer)))
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(deffoo nnmbox-request-article (article &optional newsgroup server buffer)
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(nnmbox-possibly-change-newsgroup newsgroup server)
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(save-excursion
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(set-buffer nnmbox-mbox-buffer)
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(goto-char (point-min))
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(when (search-forward (nnmbox-article-string article) nil t)
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(let (start stop)
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(re-search-backward (concat "^" message-unix-mail-delimiter) nil t)
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(setq start (point))
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(forward-line 1)
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(or (and (re-search-forward
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(concat "^" message-unix-mail-delimiter) nil t)
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(forward-line -1))
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(goto-char (point-max)))
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(setq stop (point))
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(let ((nntp-server-buffer (or buffer nntp-server-buffer)))
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(set-buffer nntp-server-buffer)
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(erase-buffer)
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(insert-buffer-substring nnmbox-mbox-buffer start stop)
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(goto-char (point-min))
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(while (looking-at "From ")
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(delete-char 5)
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(insert "X-From-Line: ")
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(forward-line 1))
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(if (numberp article)
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(cons nnmbox-current-group article)
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(nnmbox-article-group-number)))))))
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(deffoo nnmbox-request-group (group &optional server dont-check)
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(nnmbox-possibly-change-newsgroup nil server)
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(let ((active (cadr (assoc group nnmbox-group-alist))))
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(cond
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((or (null active)
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(null (nnmbox-possibly-change-newsgroup group server)))
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(nnheader-report 'nnmbox "No such group: %s" group))
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(dont-check
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(nnheader-report 'nnmbox "Selected group %s" group)
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(nnheader-insert ""))
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(t
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(nnheader-report 'nnmbox "Selected group %s" group)
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(nnheader-insert "211 %d %d %d %s\n"
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(1+ (- (cdr active) (car active)))
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(car active) (cdr active) group)))))
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(defun nnmbox-save-buffer ()
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(let ((coding-system-for-write
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(or nnmbox-file-coding-system-for-write
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nnmbox-file-coding-system)))
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(save-buffer)))
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(defun nnmbox-save-active (group-alist active-file)
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(let ((nnmail-active-file-coding-system
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(or nnmbox-active-file-coding-system-for-write
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nnmbox-active-file-coding-system)))
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(nnmail-save-active group-alist active-file)))
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(deffoo nnmbox-request-scan (&optional group server)
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(nnmbox-possibly-change-newsgroup group server)
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(nnmbox-read-mbox)
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(nnmail-get-new-mail
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'nnmbox
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(lambda ()
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(save-excursion
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(set-buffer nnmbox-mbox-buffer)
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(nnmbox-save-buffer)))
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(file-name-directory nnmbox-mbox-file)
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group
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(lambda ()
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(save-excursion
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(let ((in-buf (current-buffer)))
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(set-buffer nnmbox-mbox-buffer)
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(goto-char (point-max))
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(insert-buffer-substring in-buf)))
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(nnmbox-save-active nnmbox-group-alist nnmbox-active-file))))
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(deffoo nnmbox-close-group (group &optional server)
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t)
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(deffoo nnmbox-request-create-group (group &optional server args)
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(nnmail-activate 'nnmbox)
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(unless (assoc group nnmbox-group-alist)
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(push (list group (cons 1 0))
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nnmbox-group-alist)
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(nnmbox-save-active nnmbox-group-alist nnmbox-active-file))
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t)
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(deffoo nnmbox-request-list (&optional server)
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(save-excursion
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(let ((nnmail-file-coding-system
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nnmbox-active-file-coding-system))
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(nnmail-find-file nnmbox-active-file))
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(setq nnmbox-group-alist (nnmail-get-active))
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t))
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(deffoo nnmbox-request-newgroups (date &optional server)
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(nnmbox-request-list server))
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(deffoo nnmbox-request-list-newsgroups (&optional server)
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(nnheader-report 'nnmbox "LIST NEWSGROUPS is not implemented."))
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(deffoo nnmbox-request-expire-articles
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(articles newsgroup &optional server force)
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(nnmbox-possibly-change-newsgroup newsgroup server)
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(let* ((is-old t)
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rest)
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(nnmail-activate 'nnmbox)
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(save-excursion
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(set-buffer nnmbox-mbox-buffer)
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(while (and articles is-old)
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(goto-char (point-min))
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(when (search-forward (nnmbox-article-string (car articles)) nil t)
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(if (setq is-old
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(nnmail-expired-article-p
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newsgroup
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(buffer-substring
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(point) (progn (end-of-line) (point))) force))
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(progn
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(unless (eq nnmail-expiry-target 'delete)
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(with-temp-buffer
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(nnmbox-request-article (car articles)
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newsgroup server
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(current-buffer))
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(let ((nnml-current-directory nil))
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(nnmail-expiry-target-group
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nnmail-expiry-target newsgroup))))
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(nnheader-message 5 "Deleting article %d in %s..."
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(car articles) newsgroup)
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(nnmbox-delete-mail))
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(push (car articles) rest)))
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(setq articles (cdr articles)))
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(nnmbox-save-buffer)
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;; Find the lowest active article in this group.
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(let ((active (nth 1 (assoc newsgroup nnmbox-group-alist))))
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(goto-char (point-min))
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(while (and (not (search-forward
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(nnmbox-article-string (car active)) nil t))
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(<= (car active) (cdr active)))
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(setcar active (1+ (car active)))
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(goto-char (point-min))))
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(nnmbox-save-active nnmbox-group-alist nnmbox-active-file)
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(nconc rest articles))))
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(deffoo nnmbox-request-move-article
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(article group server accept-form &optional last)
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(let ((buf (get-buffer-create " *nnmbox move*"))
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result)
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(and
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(nnmbox-request-article article group server)
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(save-excursion
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(set-buffer buf)
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(erase-buffer)
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(insert-buffer-substring nntp-server-buffer)
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(goto-char (point-min))
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(while (re-search-forward
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"^X-Gnus-Newsgroup:"
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(save-excursion (search-forward "\n\n" nil t) (point)) t)
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(delete-region (progn (beginning-of-line) (point))
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(progn (forward-line 1) (point))))
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(setq result (eval accept-form))
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(kill-buffer buf)
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result)
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(save-excursion
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(nnmbox-possibly-change-newsgroup group server)
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(set-buffer nnmbox-mbox-buffer)
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(goto-char (point-min))
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(when (search-forward (nnmbox-article-string article) nil t)
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(nnmbox-delete-mail))
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(and last (nnmbox-save-buffer))))
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result))
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(deffoo nnmbox-request-accept-article (group &optional server last)
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(nnmbox-possibly-change-newsgroup group server)
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(nnmail-check-syntax)
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(let ((buf (current-buffer))
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result)
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(goto-char (point-min))
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;; The From line may have been quoted by movemail.
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(when (looking-at (concat ">" message-unix-mail-delimiter))
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(delete-char 1))
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(if (looking-at "X-From-Line: ")
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(replace-match "From ")
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(insert "From nobody " (current-time-string) "\n"))
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(and
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(nnmail-activate 'nnmbox)
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(progn
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(set-buffer buf)
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(goto-char (point-min))
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(search-forward "\n\n" nil t)
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(forward-line -1)
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(while (re-search-backward "^X-Gnus-Newsgroup: " nil t)
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(delete-region (point) (progn (forward-line 1) (point))))
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(when nnmail-cache-accepted-message-ids
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(nnmail-cache-insert (nnmail-fetch-field "message-id")))
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(setq result (if (stringp group)
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(list (cons group (nnmbox-active-number group)))
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(nnmail-article-group 'nnmbox-active-number)))
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(if (and (null result)
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(yes-or-no-p "Moved to `junk' group; delete article? "))
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(setq result 'junk)
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(setq result (car (nnmbox-save-mail result)))))
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(save-excursion
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(set-buffer nnmbox-mbox-buffer)
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(goto-char (point-max))
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(insert-buffer-substring buf)
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(when last
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(when nnmail-cache-accepted-message-ids
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(nnmail-cache-close))
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(nnmbox-save-active nnmbox-group-alist nnmbox-active-file)
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(nnmbox-save-buffer))))
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result))
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(deffoo nnmbox-request-replace-article (article group buffer)
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(nnmbox-possibly-change-newsgroup group)
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(save-excursion
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(set-buffer nnmbox-mbox-buffer)
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(goto-char (point-min))
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(if (not (search-forward (nnmbox-article-string article) nil t))
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nil
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(nnmbox-delete-mail t t)
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(insert-buffer-substring buffer)
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(nnmbox-save-buffer)
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t)))
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(deffoo nnmbox-request-delete-group (group &optional force server)
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(nnmbox-possibly-change-newsgroup group server)
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;; Delete all articles in GROUP.
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(if (not force)
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() ; Don't delete the articles.
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(save-excursion
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(set-buffer nnmbox-mbox-buffer)
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(goto-char (point-min))
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;; Delete all articles in this group.
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(let ((ident (concat "\nX-Gnus-Newsgroup: " nnmbox-current-group ":"))
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found)
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(while (search-forward ident nil t)
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(setq found t)
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(nnmbox-delete-mail))
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(when found
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(nnmbox-save-buffer)))))
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;; Remove the group from all structures.
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(setq nnmbox-group-alist
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(delq (assoc group nnmbox-group-alist) nnmbox-group-alist)
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nnmbox-current-group nil)
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;; Save the active file.
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(nnmbox-save-active nnmbox-group-alist nnmbox-active-file)
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t)
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(deffoo nnmbox-request-rename-group (group new-name &optional server)
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(nnmbox-possibly-change-newsgroup group server)
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(save-excursion
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(set-buffer nnmbox-mbox-buffer)
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(goto-char (point-min))
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(let ((ident (concat "\nX-Gnus-Newsgroup: " nnmbox-current-group ":"))
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(new-ident (concat "\nX-Gnus-Newsgroup: " new-name ":"))
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found)
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(while (search-forward ident nil t)
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(replace-match new-ident t t)
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(setq found t))
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(when found
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(nnmbox-save-buffer))))
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(let ((entry (assoc group nnmbox-group-alist)))
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(when entry
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(setcar entry new-name))
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(setq nnmbox-current-group nil)
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;; Save the new group alist.
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(nnmbox-save-active nnmbox-group-alist nnmbox-active-file)
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t))
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;;; Internal functions.
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;; If FORCE, delete article no matter how many X-Gnus-Newsgroup
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;; headers there are. If LEAVE-DELIM, don't delete the Unix mbox
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;; delimiter line.
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(defun nnmbox-delete-mail (&optional force leave-delim)
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;; Delete the current X-Gnus-Newsgroup line.
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(or force
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(delete-region
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(progn (beginning-of-line) (point))
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(progn (forward-line 1) (point))))
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;; Beginning of the article.
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(save-excursion
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(save-restriction
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(narrow-to-region
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(save-excursion
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(re-search-backward (concat "^" message-unix-mail-delimiter) nil t)
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(if leave-delim (progn (forward-line 1) (point))
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(match-beginning 0)))
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(progn
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(forward-line 1)
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(or (and (re-search-forward (concat "^" message-unix-mail-delimiter)
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nil t)
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(if (and (not (bobp)) leave-delim)
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(progn (forward-line -2) (point))
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(match-beginning 0)))
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(point-max))))
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(goto-char (point-min))
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;; Only delete the article if no other groups owns it as well.
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(when (or force (not (re-search-forward "^X-Gnus-Newsgroup: " nil t)))
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(delete-region (point-min) (point-max))))))
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(defun nnmbox-possibly-change-newsgroup (newsgroup &optional server)
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(when (and server
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(not (nnmbox-server-opened server)))
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(nnmbox-open-server server))
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(when (or (not nnmbox-mbox-buffer)
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(not (buffer-name nnmbox-mbox-buffer)))
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(save-excursion
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(set-buffer (setq nnmbox-mbox-buffer
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(let ((nnheader-file-coding-system
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nnmbox-file-coding-system))
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(nnheader-find-file-noselect
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nnmbox-mbox-file nil t))))
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(mm-enable-multibyte)
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(buffer-disable-undo)))
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(when (not nnmbox-group-alist)
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(nnmail-activate 'nnmbox))
|
||
(if newsgroup
|
||
(when (assoc newsgroup nnmbox-group-alist)
|
||
(setq nnmbox-current-group newsgroup))
|
||
t))
|
||
|
||
(defun nnmbox-article-string (article)
|
||
(if (numberp article)
|
||
(concat "\nX-Gnus-Newsgroup: " nnmbox-current-group ":"
|
||
(int-to-string article) " ")
|
||
(concat "\nMessage-ID: " article)))
|
||
|
||
(defun nnmbox-article-group-number ()
|
||
(save-excursion
|
||
(goto-char (point-min))
|
||
(when (re-search-forward "^X-Gnus-Newsgroup: +\\([^:]+\\):\\([0-9]+\\) "
|
||
nil t)
|
||
(cons (buffer-substring (match-beginning 1) (match-end 1))
|
||
(string-to-int
|
||
(buffer-substring (match-beginning 2) (match-end 2)))))))
|
||
|
||
(defun nnmbox-save-mail (group-art)
|
||
"Called narrowed to an article."
|
||
(let ((delim (concat "^" message-unix-mail-delimiter)))
|
||
(goto-char (point-min))
|
||
;; This might come from somewhere else.
|
||
(unless (looking-at delim)
|
||
(insert "From nobody " (current-time-string) "\n")
|
||
(goto-char (point-min)))
|
||
;; Quote all "From " lines in the article.
|
||
(forward-line 1)
|
||
(while (re-search-forward delim nil t)
|
||
(beginning-of-line)
|
||
(insert "> "))
|
||
(nnmail-insert-lines)
|
||
(nnmail-insert-xref group-art)
|
||
(nnmbox-insert-newsgroup-line group-art)
|
||
(run-hooks 'nnmail-prepare-save-mail-hook)
|
||
(run-hooks 'nnmbox-prepare-save-mail-hook)
|
||
group-art))
|
||
|
||
(defun nnmbox-insert-newsgroup-line (group-art)
|
||
(save-excursion
|
||
(goto-char (point-min))
|
||
(when (search-forward "\n\n" nil t)
|
||
(forward-char -1)
|
||
(while group-art
|
||
(insert (format "X-Gnus-Newsgroup: %s:%d %s\n"
|
||
(caar group-art) (cdar group-art)
|
||
(current-time-string)))
|
||
(setq group-art (cdr group-art))))
|
||
t))
|
||
|
||
(defun nnmbox-active-number (group)
|
||
;; Find the next article number in GROUP.
|
||
(let ((active (cadr (assoc group nnmbox-group-alist))))
|
||
(if active
|
||
(setcdr active (1+ (cdr active)))
|
||
;; This group is new, so we create a new entry for it.
|
||
;; This might be a bit naughty... creating groups on the drop of
|
||
;; a hat, but I don't know...
|
||
(push (list group (setq active (cons 1 1)))
|
||
nnmbox-group-alist))
|
||
(cdr active)))
|
||
|
||
(defun nnmbox-create-mbox ()
|
||
(when (not (file-exists-p nnmbox-mbox-file))
|
||
(let ((nnmail-file-coding-system
|
||
(or nnmbox-file-coding-system-for-write
|
||
nnmbox-file-coding-system)))
|
||
(nnmail-write-region (point-min) (point-min)
|
||
nnmbox-mbox-file t 'nomesg))))
|
||
|
||
(defun nnmbox-read-mbox ()
|
||
(nnmail-activate 'nnmbox)
|
||
(nnmbox-create-mbox)
|
||
(if (and nnmbox-mbox-buffer
|
||
(buffer-name nnmbox-mbox-buffer)
|
||
(save-excursion
|
||
(set-buffer nnmbox-mbox-buffer)
|
||
(= (buffer-size) (nnheader-file-size nnmbox-mbox-file))))
|
||
()
|
||
(save-excursion
|
||
(let ((delim (concat "^" message-unix-mail-delimiter))
|
||
(alist nnmbox-group-alist)
|
||
start end number)
|
||
(set-buffer (setq nnmbox-mbox-buffer
|
||
(let ((nnheader-file-coding-system
|
||
nnmbox-file-coding-system))
|
||
(nnheader-find-file-noselect
|
||
nnmbox-mbox-file nil t))))
|
||
(mm-enable-multibyte)
|
||
(buffer-disable-undo)
|
||
|
||
;; Go through the group alist and compare against
|
||
;; the mbox file.
|
||
(while alist
|
||
(goto-char (point-max))
|
||
(when (and (re-search-backward
|
||
(format "^X-Gnus-Newsgroup: %s:\\([0-9]+\\) "
|
||
(caar alist)) nil t)
|
||
(> (setq number
|
||
(string-to-number
|
||
(buffer-substring
|
||
(match-beginning 1) (match-end 1))))
|
||
(cdadar alist)))
|
||
(setcdr (cadar alist) number))
|
||
(setq alist (cdr alist)))
|
||
|
||
(goto-char (point-min))
|
||
(while (re-search-forward delim nil t)
|
||
(setq start (match-beginning 0))
|
||
(unless (search-forward
|
||
"\nX-Gnus-Newsgroup: "
|
||
(save-excursion
|
||
(setq end
|
||
(or
|
||
(and
|
||
;; skip to end of headers first, since mail
|
||
;; which has been respooled has additional
|
||
;; "From nobody" lines.
|
||
(search-forward "\n\n" nil t)
|
||
(re-search-forward delim nil t)
|
||
(match-beginning 0))
|
||
(point-max))))
|
||
t)
|
||
(save-excursion
|
||
(save-restriction
|
||
(narrow-to-region start end)
|
||
(nnmbox-save-mail
|
||
(nnmail-article-group 'nnmbox-active-number)))))
|
||
(goto-char end))))))
|
||
|
||
(provide 'nnmbox)
|
||
|
||
;;; nnmbox.el ends here
|