1995-11-04 03:54:42 +00:00
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;;; nnmh.el --- mhspool access for Gnus
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1996-01-14 07:34:30 +00:00
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1995-11-04 03:54:42 +00:00
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;; Copyright (C) 1995 Free Software Foundation, Inc.
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;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
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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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;; 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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1996-01-14 07:34:30 +00:00
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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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1995-11-04 03:54:42 +00:00
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;;; Commentary:
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;; Based on nnspool.el by Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>.
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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 'rmail)
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(require 'nnmail)
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(require 'gnus)
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(defvar nnmh-directory "~/Mail/"
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"*Mail spool directory.")
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(defvar nnmh-get-new-mail t
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"*If non-nil, nnmh will check the incoming mail file and split the mail.")
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(defvar nnmh-prepare-save-mail-hook nil
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"*Hook run narrowed to an article before saving.")
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(defvar nnmh-be-safe nil
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"*If non-nil, nnmh will check all articles to make sure whether they are new or not.")
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(defconst nnmh-version "nnmh 1.0"
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"nnmh version.")
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(defvar nnmh-current-directory nil
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"Current news group directory.")
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(defvar nnmh-status-string "")
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(defvar nnmh-group-alist nil)
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(defvar nnmh-current-server nil)
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(defvar nnmh-server-alist nil)
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(defvar nnmh-server-variables
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(list
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(list 'nnmh-directory nnmh-directory)
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(list 'nnmh-get-new-mail nnmh-get-new-mail)
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'(nnmh-current-directory nil)
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'(nnmh-status-string "")
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'(nnmh-group-alist)))
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;;; Interface functions.
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(defun nnmh-retrieve-headers (sequence &optional newsgroup server)
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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* ((file nil)
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(number (length sequence))
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(large (and (numberp nnmail-large-newsgroup)
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(> number nnmail-large-newsgroup)))
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(count 0)
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beg article)
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(nnmh-possibly-change-directory newsgroup)
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(if (stringp (car sequence))
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'headers
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(while sequence
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(setq article (car sequence))
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(setq file
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(concat nnmh-current-directory (int-to-string article)))
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(if (and (file-exists-p file)
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(not (file-directory-p file)))
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(progn
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(insert (format "221 %d Article retrieved.\n" article))
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(setq beg (point))
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(nnheader-insert-head file)
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(goto-char beg)
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(if (search-forward "\n\n" nil t)
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(forward-char -1)
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(goto-char (point-max))
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(insert "\n\n"))
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(insert ".\n")
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(delete-region (point) (point-max))))
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(setq sequence (cdr sequence))
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(setq count (1+ count))
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(and large
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(zerop (% count 20))
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(message "nnmh: Receiving headers... %d%%"
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(/ (* count 100) number))))
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(and large (message "nnmh: Receiving headers...done"))
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;; Fold continuation lines.
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(goto-char (point-min))
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(while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t)
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(replace-match " " t t))
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'headers))))
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(defun nnmh-open-server (server &optional defs)
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(nnheader-init-server-buffer)
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(if (equal server nnmh-current-server)
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t
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(if nnmh-current-server
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(setq nnmh-server-alist
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(cons (list nnmh-current-server
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(nnheader-save-variables nnmh-server-variables))
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nnmh-server-alist)))
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(let ((state (assoc server nnmh-server-alist)))
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(if state
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(progn
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(nnheader-restore-variables (nth 1 state))
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(setq nnmh-server-alist (delq state nnmh-server-alist)))
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(nnheader-set-init-variables nnmh-server-variables defs)))
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(setq nnmh-current-server server)))
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(defun nnmh-close-server (&optional server)
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t)
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(defun nnmh-server-opened (&optional server)
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(and (equal server nnmh-current-server)
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nntp-server-buffer
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(buffer-name nntp-server-buffer)))
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(defun nnmh-status-message (&optional server)
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nnmh-status-string)
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(defun nnmh-request-article (id &optional newsgroup server buffer)
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(nnmh-possibly-change-directory newsgroup)
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(let ((file (if (stringp id)
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nil
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(concat nnmh-current-directory (int-to-string id))))
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(nntp-server-buffer (or buffer nntp-server-buffer)))
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(and (stringp file)
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(file-exists-p file)
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(not (file-directory-p file))
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(save-excursion (nnmail-find-file file)))))
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(defun nnmh-request-group (group &optional server dont-check)
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(and nnmh-get-new-mail (or dont-check (nnmh-get-new-mail group)))
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(let ((pathname (nnmh-article-pathname group nnmh-directory))
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dir)
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(if (file-directory-p pathname)
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(progn
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(setq nnmh-current-directory pathname)
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(and nnmh-get-new-mail
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nnmh-be-safe
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(nnmh-update-gnus-unreads group))
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(or dont-check
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(progn
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(setq dir
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(sort
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(mapcar
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(function
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(lambda (name)
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(string-to-int name)))
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(directory-files pathname nil "^[0-9]+$" t))
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'<))
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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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(if dir
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(insert (format "211 %d %d %d %s\n" (length dir)
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(car dir)
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(progn (while (cdr dir)
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(setq dir (cdr dir)))
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(car dir))
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group))
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(insert (format "211 0 1 0 %s\n" group))))))
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t)
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(setq nnmh-status-string "No such group")
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nil)))
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(defun nnmh-request-list (&optional server dir)
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(or dir
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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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(setq dir (file-truename (file-name-as-directory nnmh-directory)))))
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(setq dir (expand-file-name dir))
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;; Recurse down all directories.
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(let ((dirs (and (file-readable-p dir)
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(> (nth 1 (file-attributes (file-chase-links dir))) 2)
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(directory-files dir t nil t))))
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(while dirs
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(if (and (not (string-match "/\\.\\.?$" (car dirs)))
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(file-directory-p (car dirs))
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(file-readable-p (car dirs)))
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(nnmh-request-list nil (car dirs)))
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(setq dirs (cdr dirs))))
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;; For each directory, generate an active file line.
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(if (not (string= (expand-file-name nnmh-directory) dir))
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(let ((files (mapcar
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(lambda (name) (string-to-int name))
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(directory-files dir nil "^[0-9]+$" t))))
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(if (null files)
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()
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(save-excursion
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(set-buffer nntp-server-buffer)
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(goto-char (point-max))
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(insert
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(format
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"%s %d %d y\n"
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(progn
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(string-match
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(file-truename (file-name-as-directory
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(expand-file-name nnmh-directory))) dir)
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(nnmail-replace-chars-in-string
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(substring dir (match-end 0)) ?/ ?.))
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(apply (function max) files)
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(apply (function min) files)))))))
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(setq nnmh-group-alist (nnmail-get-active))
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(and server nnmh-get-new-mail (nnmh-get-new-mail))
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t)
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(defun nnmh-request-newgroups (date &optional server)
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(nnmh-request-list server))
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(defun nnmh-request-post (&optional server)
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(mail-send-and-exit nil))
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(defalias 'nnmh-request-post-buffer 'nnmail-request-post-buffer)
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(defun nnmh-request-expire-articles (articles newsgroup &optional server force)
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(nnmh-possibly-change-directory newsgroup)
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(let* ((days (or (and nnmail-expiry-wait-function
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(funcall nnmail-expiry-wait-function newsgroup))
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nnmail-expiry-wait))
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(active-articles
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(mapcar
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(function
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(lambda (name)
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(string-to-int name)))
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(directory-files nnmh-current-directory nil "^[0-9]+$" t)))
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(max-article (and active-articles (apply 'max active-articles)))
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(is-old t)
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article rest mod-time)
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(nnmail-activate 'nnmh)
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(while (and articles is-old)
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(setq article (concat nnmh-current-directory
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(int-to-string (car articles))))
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(if (setq mod-time (nth 5 (file-attributes article)))
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(if (and (or (not nnmail-keep-last-article)
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(not max-article)
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(not (= (car articles) max-article)))
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(not (equal mod-time '(0 0)))
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(or force
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(setq is-old
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(> (nnmail-days-between
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(current-time-string)
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(current-time-string mod-time))
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days))))
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(progn
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(and gnus-verbose-backends
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(message "Deleting article %s..." article))
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(condition-case ()
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(delete-file article)
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(file-error
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(setq rest (cons (car articles) rest)))))
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|
(setq rest (cons (car articles) rest))))
|
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|
(setq articles (cdr articles)))
|
|
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(message "")
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|
(nconc rest articles)))
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(defun nnmh-close-group (group &optional server)
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t)
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(defun nnmh-request-move-article
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(article group server accept-form &optional last)
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(let ((buf (get-buffer-create " *nnmh move*"))
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result)
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(and
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(nnmh-request-article article group server)
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(save-excursion
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(set-buffer buf)
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(insert-buffer-substring nntp-server-buffer)
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(setq result (eval accept-form))
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(kill-buffer (current-buffer))
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result)
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(condition-case ()
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(delete-file (concat nnmh-current-directory
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(int-to-string article)))
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(file-error nil)))
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result))
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(defun nnmh-request-accept-article (group &optional last)
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(if (stringp group)
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(and
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|
(nnmail-activate 'nnmh)
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|
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|
|
;; We trick the choosing function into believing that only one
|
1996-01-05 22:21:28 +00:00
|
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|
|
;; group is available.
|
1995-11-04 03:54:42 +00:00
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|
(let ((nnmail-split-methods (list (list group ""))))
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|
(car (nnmh-save-mail))))
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|
(and
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|
|
(nnmail-activate 'nnmh)
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|
(car (nnmh-save-mail)))))
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|
(defun nnmh-request-replace-article (article group buffer)
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|
(nnmh-possibly-change-directory group)
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(save-excursion
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|
|
(set-buffer buffer)
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|
(nnmh-possibly-create-directory group)
|
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|
(condition-case ()
|
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|
|
(progn
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|
(write-region (point-min) (point-max)
|
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|
|
(concat nnmh-current-directory (int-to-string article))
|
|
|
|
|
|
nil (if gnus-verbose-backends nil 'nomesg))
|
|
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|
t)
|
|
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|
|
(error nil))))
|
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|
|
;;; Internal functions.
|
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|
|
(defun nnmh-possibly-change-directory (newsgroup)
|
|
|
|
|
|
(if newsgroup
|
|
|
|
|
|
(let ((pathname (nnmh-article-pathname newsgroup nnmh-directory)))
|
|
|
|
|
|
(if (file-directory-p pathname)
|
|
|
|
|
|
(setq nnmh-current-directory pathname)
|
|
|
|
|
|
(error "No such newsgroup: %s" newsgroup)))))
|
|
|
|
|
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|
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|
|
(defun nnmh-possibly-create-directory (group)
|
|
|
|
|
|
(let (dir dirs)
|
|
|
|
|
|
(setq dir (nnmh-article-pathname group nnmh-directory))
|
|
|
|
|
|
(while (not (file-directory-p dir))
|
|
|
|
|
|
(setq dirs (cons dir dirs))
|
|
|
|
|
|
(setq dir (file-name-directory (directory-file-name dir))))
|
|
|
|
|
|
(while dirs
|
|
|
|
|
|
(if (make-directory (directory-file-name (car dirs)))
|
|
|
|
|
|
(error "Could not create directory %s" (car dirs)))
|
|
|
|
|
|
(and gnus-verbose-backends
|
|
|
|
|
|
(message "Creating mail directory %s" (car dirs)))
|
|
|
|
|
|
(setq dirs (cdr dirs)))))
|
|
|
|
|
|
|
|
|
|
|
|
(defun nnmh-save-mail ()
|
|
|
|
|
|
"Called narrowed to an article."
|
|
|
|
|
|
(let ((group-art (nreverse (nnmail-article-group 'nnmh-active-number))))
|
|
|
|
|
|
(nnmail-insert-lines)
|
|
|
|
|
|
(nnmail-insert-xref group-art)
|
|
|
|
|
|
(run-hooks 'nnmh-prepare-save-mail-hook)
|
|
|
|
|
|
(goto-char (point-min))
|
|
|
|
|
|
(while (looking-at "From ")
|
|
|
|
|
|
(replace-match "X-From-Line: ")
|
|
|
|
|
|
(forward-line 1))
|
|
|
|
|
|
;; We save the article in all the newsgroups it belongs in.
|
|
|
|
|
|
(let ((ga group-art)
|
|
|
|
|
|
first)
|
|
|
|
|
|
(while ga
|
|
|
|
|
|
(nnmh-possibly-create-directory (car (car ga)))
|
|
|
|
|
|
(let ((file (concat (nnmh-article-pathname
|
|
|
|
|
|
(car (car ga)) nnmh-directory)
|
|
|
|
|
|
(int-to-string (cdr (car ga))))))
|
|
|
|
|
|
(if first
|
|
|
|
|
|
;; It was already saved, so we just make a hard link.
|
|
|
|
|
|
(add-name-to-file first file t)
|
|
|
|
|
|
;; Save the article.
|
|
|
|
|
|
(write-region (point-min) (point-max) file nil nil)
|
|
|
|
|
|
(setq first file)))
|
|
|
|
|
|
(setq ga (cdr ga))))
|
|
|
|
|
|
group-art))
|
|
|
|
|
|
|
|
|
|
|
|
(defun nnmh-active-number (group)
|
|
|
|
|
|
"Compute the next article number in GROUP."
|
|
|
|
|
|
(let ((active (car (cdr (assoc group nnmh-group-alist)))))
|
|
|
|
|
|
;; The group wasn't known to nnmh, so we just create an active
|
|
|
|
|
|
;; entry for it.
|
|
|
|
|
|
(or active
|
|
|
|
|
|
(progn
|
|
|
|
|
|
(setq active (cons 1 0))
|
|
|
|
|
|
(setq nnmh-group-alist (cons (list group active) nnmh-group-alist))))
|
|
|
|
|
|
(setcdr active (1+ (cdr active)))
|
|
|
|
|
|
(while (file-exists-p
|
|
|
|
|
|
(concat (nnmh-article-pathname group nnmh-directory)
|
|
|
|
|
|
(int-to-string (cdr active))))
|
|
|
|
|
|
(setcdr active (1+ (cdr active))))
|
|
|
|
|
|
(cdr active)))
|
|
|
|
|
|
|
|
|
|
|
|
(defun nnmh-article-pathname (group mail-dir)
|
|
|
|
|
|
"Make pathname for GROUP."
|
|
|
|
|
|
(let ((mail-dir (file-name-as-directory (expand-file-name mail-dir))))
|
|
|
|
|
|
(if (file-directory-p (concat mail-dir group))
|
|
|
|
|
|
(concat mail-dir group "/")
|
|
|
|
|
|
(concat mail-dir (nnmail-replace-chars-in-string group ?. ?/) "/"))))
|
|
|
|
|
|
|
|
|
|
|
|
(defun nnmh-get-new-mail (&optional group)
|
|
|
|
|
|
"Read new incoming mail."
|
|
|
|
|
|
(let* ((spools (nnmail-get-spool-files group))
|
|
|
|
|
|
(group-in group)
|
|
|
|
|
|
incoming incomings)
|
|
|
|
|
|
(if (or (not nnmh-get-new-mail) (not nnmail-spool-file))
|
|
|
|
|
|
()
|
|
|
|
|
|
;; We first activate all the groups.
|
|
|
|
|
|
(or nnmh-group-alist
|
|
|
|
|
|
(nnmh-request-list))
|
|
|
|
|
|
;; The we go through all the existing spool files and split the
|
|
|
|
|
|
;; mail from each.
|
|
|
|
|
|
(while spools
|
|
|
|
|
|
(and
|
|
|
|
|
|
(file-exists-p (car spools))
|
|
|
|
|
|
(> (nth 7 (file-attributes (car spools))) 0)
|
|
|
|
|
|
(progn
|
|
|
|
|
|
(and gnus-verbose-backends
|
|
|
|
|
|
(message "nnmh: Reading incoming mail..."))
|
|
|
|
|
|
(if (not (setq incoming
|
|
|
|
|
|
(nnmail-move-inbox
|
|
|
|
|
|
(car spools)
|
|
|
|
|
|
(concat (file-name-as-directory nnmh-directory)
|
|
|
|
|
|
"Incoming"))))
|
|
|
|
|
|
()
|
|
|
|
|
|
(setq incomings (cons incoming incomings))
|
|
|
|
|
|
(setq group (nnmail-get-split-group (car spools) group-in))
|
|
|
|
|
|
(nnmail-split-incoming incoming 'nnmh-save-mail nil group))))
|
|
|
|
|
|
(setq spools (cdr spools)))
|
|
|
|
|
|
;; If we did indeed read any incoming spools, we save all info.
|
|
|
|
|
|
(if incoming
|
|
|
|
|
|
(message "nnmh: Reading incoming mail...done"))
|
|
|
|
|
|
(while incomings
|
|
|
|
|
|
(setq incoming (car incomings))
|
|
|
|
|
|
(and nnmail-delete-incoming
|
|
|
|
|
|
(file-exists-p incoming)
|
|
|
|
|
|
(file-writable-p incoming)
|
|
|
|
|
|
(delete-file incoming))
|
|
|
|
|
|
(setq incomings (cdr incomings))))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(defun nnmh-update-gnus-unreads (group)
|
|
|
|
|
|
;; Go through the .nnmh-articles file and compare with the actual
|
|
|
|
|
|
;; articles in this folder. The articles that are "new" will be
|
|
|
|
|
|
;; marked as unread by Gnus.
|
|
|
|
|
|
(let* ((dir nnmh-current-directory)
|
|
|
|
|
|
(files (sort (mapcar (function (lambda (name) (string-to-int name)))
|
|
|
|
|
|
(directory-files nnmh-current-directory
|
|
|
|
|
|
nil "^[0-9]+$" t)) '<))
|
|
|
|
|
|
(nnmh-file (concat dir ".nnmh-articles"))
|
|
|
|
|
|
new articles)
|
|
|
|
|
|
;; Load the .nnmh-articles file.
|
|
|
|
|
|
(if (file-exists-p nnmh-file)
|
|
|
|
|
|
(setq articles
|
|
|
|
|
|
(let (nnmh-newsgroup-articles)
|
|
|
|
|
|
(condition-case nil (load nnmh-file nil t t) (error nil))
|
|
|
|
|
|
nnmh-newsgroup-articles)))
|
|
|
|
|
|
;; Add all new articles to the `new' list.
|
|
|
|
|
|
(let ((art files))
|
|
|
|
|
|
(while art
|
|
|
|
|
|
(if (not (assq (car art) articles)) (setq new (cons (car art) new)))
|
|
|
|
|
|
(setq art (cdr art))))
|
|
|
|
|
|
;; Remove all deleted articles.
|
|
|
|
|
|
(let ((art articles))
|
|
|
|
|
|
(while art
|
|
|
|
|
|
(if (not (memq (car (car art)) files))
|
|
|
|
|
|
(setq articles (delq (car art) articles)))
|
|
|
|
|
|
(setq art (cdr art))))
|
|
|
|
|
|
;; Check whether the highest-numbered articles really are the ones
|
|
|
|
|
|
;; that Gnus thinks they are by looking at the time-stamps.
|
|
|
|
|
|
(let ((art articles))
|
|
|
|
|
|
(while (and art
|
|
|
|
|
|
(not (equal
|
|
|
|
|
|
(nth 5 (file-attributes
|
|
|
|
|
|
(concat dir (int-to-string (car (car art))))))
|
|
|
|
|
|
(cdr (car art)))))
|
|
|
|
|
|
(setq articles (delq (car art) articles))
|
|
|
|
|
|
(setq new (cons (car (car art)) new))
|
|
|
|
|
|
(setq art (cdr art))))
|
|
|
|
|
|
;; Go through all the new articles and add them, and their
|
|
|
|
|
|
;; time-stamps to the list.
|
|
|
|
|
|
(let ((n new))
|
|
|
|
|
|
(while n
|
|
|
|
|
|
(setq articles
|
|
|
|
|
|
(cons (cons
|
|
|
|
|
|
(car n)
|
|
|
|
|
|
(nth 5 (file-attributes
|
|
|
|
|
|
(concat dir (int-to-string (car n))))))
|
|
|
|
|
|
articles))
|
|
|
|
|
|
(setq n (cdr n))))
|
|
|
|
|
|
;; Make Gnus mark all new articles as unread.
|
|
|
|
|
|
(or (zerop (length new))
|
|
|
|
|
|
(gnus-make-articles-unread
|
|
|
|
|
|
(gnus-group-prefixed-name group (list 'nnmh ""))
|
|
|
|
|
|
(setq new (sort new '<))))
|
|
|
|
|
|
;; Sort the article list with highest numbers first.
|
|
|
|
|
|
(setq articles (sort articles (lambda (art1 art2)
|
|
|
|
|
|
(> (car art1) (car art2)))))
|
|
|
|
|
|
;; Finally write this list back to the .nnmh-articles file.
|
|
|
|
|
|
(save-excursion
|
|
|
|
|
|
(set-buffer (get-buffer-create "*nnmh out*"))
|
|
|
|
|
|
(insert ";; Gnus article active file for " group "\n\n")
|
|
|
|
|
|
(insert "(setq nnmh-newsgroup-articles '")
|
|
|
|
|
|
(insert (prin1-to-string articles) ")\n")
|
|
|
|
|
|
(write-region (point-min) (point-max) nnmh-file nil 'nomesg)
|
|
|
|
|
|
(kill-buffer (current-buffer)))))
|
|
|
|
|
|
|
|
|
|
|
|
(provide 'nnmh)
|
|
|
|
|
|
|
|
|
|
|
|
;;; nnmh.el ends here
|
