1 ;;; nndigest.el --- digest access for Gnus
2 ;; Copyright (C) 1995 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to
21 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
31 (defconst nndigest-version "nndigest 0.0"
34 (defvar nndigest-current-buffer nil
35 "Current digest "group" buffer.")
37 (defvar nndigest-status-string "")
39 (defvar nndigest-group-alist nil)
41 (defconst nndigest-separator "------------------------------[\n \t]*\n[^ ]+: ")
45 ;;; Interface functions.
47 (defun nndigest-retrieve-headers (sequence &optional newsgroup server)
48 "Retrieve the headers for the articles in SEQUENCE.
49 Newsgroup must be selected before calling this function."
51 (set-buffer nntp-server-buffer)
54 (number (length sequence))
58 (nndigest-possibly-change-buffer newsgroup)
60 (setq article (car sequence))
61 (if (setq range (nndigest-narrow-to-article article))
63 (insert (format "221 %d Article retrieved.\n" article))
65 (insert-buffer-substring nndigest-current-buffer
66 (car range) (cdr range))
68 (if (search-forward "\n\n" nil t)
70 (goto-char (point-max))
73 (delete-region (point) (point-max))))
74 (setq sequence (cdr sequence)))
76 ;; Fold continuation lines.
78 (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t)
79 (replace-match " " t t))
82 (defun nndigest-open-server (host &optional service)
83 "Open news server on HOST."
84 (setq nndigest-status-string "")
85 (nnheader-init-server-buffer))
87 (defun nndigest-close-server (&optional server)
91 (defun nndigest-server-opened (&optional server)
92 "Return server process status, T or NIL."
93 (and nntp-server-buffer
94 (get-buffer nntp-server-buffer)))
96 (defun nndigest-status-message ()
97 "Return server status response as string."
98 nndigest-status-string)
100 (defun nndigest-request-article (id &optional newsgroup server buffer)
101 "Select article by message ID (or number)."
102 (nndigest-possibly-change-buffer newsgroup)
103 (let ((range (nndigest-narrow-to-article id)))
106 (set-buffer (or buffer nntp-server-buffer))
108 (insert-buffer-substring
109 nndigest-current-buffer (car range) (cdr range))
112 (defun nndigest-request-group (group &optional server dont-check)
114 (let ((entry (assoc group nndigest-group-alist)))
115 (and entry (setq nndigest-group-alist (delq entry nndigest-group-alist))))
116 (let ((buffer (get-buffer-create (concat " *nndigest " group "*"))))
117 (setq nndigest-group-alist
118 (cons (cons group buffer) nndigest-group-alist))
122 (insert-buffer-substring server)))
123 (nndigest-possibly-change-buffer group)
126 (set-buffer nndigest-current-buffer)
128 (goto-char (point-min))
129 (while (re-search-forward nndigest-separator nil t)
131 (set-buffer nntp-server-buffer)
133 (insert (format "211 %d %d %d %s\n" num 1 num group))
136 (defun nndigest-close-group (group &optional server)
137 (nndigest-possibly-change-buffer group)
138 (kill-buffer nndigest-current-buffer)
139 (setq nndigest-group-alist (delq (assoc group nndigest-group-alist)
140 nndigest-group-alist))
141 (setq nndigest-current-buffer nil)
144 (defun nndigest-request-list (&optional server)
145 "List active newsgoups."
147 (set-buffer nntp-server-buffer)
151 (defun nndigest-request-newgroups (date &optional server)
152 "List groups created after DATE."
154 (set-buffer nntp-server-buffer)
158 (defun nndigest-request-list-newsgroups (&optional server)
159 "List newsgroups (defined in NNTP2)."
161 (set-buffer nntp-server-buffer)
165 (defun nndigest-request-post (&optional server)
166 "Post a new news in current buffer."
167 (mail-send-and-exit nil))
169 (fset 'nndigest-request-post-buffer 'nnmail-request-post-buffer)
173 ;;; Internal functions
175 (defun nndigest-possibly-change-buffer (group)
177 (not (equal (cdr (assoc group nndigest-group-alist))
178 nndigest-current-buffer))
179 (setq nndigest-current-buffer
180 (cdr (assoc group nndigest-group-alist)))))
182 (defun nndigest-narrow-to-article (article)
184 (set-buffer nndigest-current-buffer)
186 (goto-char (point-min))
187 (while (and (not (zerop article))
188 (re-search-forward nndigest-separator nil t))
189 (setq article (1- article)))
192 (goto-char (match-end 0))
196 (or (and (re-search-forward nndigest-separator nil t)
201 (cons (point-min) (point-max)))
207 ;;; nndigest.el ends here