1 ;;; nndoc.el --- single file access for Gnus
2 ;; Copyright (C) 1995 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
5 ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to
22 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
34 (defconst nndoc-version "nndoc 0.1"
37 (defvar nndoc-current-buffer nil
38 "Current nndoc news buffer.")
40 (defvar nndoc-status-string "")
42 (defvar nndoc-group-alist nil)
44 ;;; Interface functions
46 (defun nndoc-retrieve-headers (sequence &optional newsgroup server)
47 "Retrieve the headers for the articles in SEQUENCE.
48 Newsgroup must be selected before calling this function."
50 (set-buffer nntp-server-buffer)
53 (number (length sequence))
55 beg article art-string start stop lines)
56 (nndoc-possibly-change-buffer newsgroup server)
58 (setq article (car sequence))
59 (set-buffer nndoc-current-buffer)
60 (if (nndoc-search-for-article article)
66 (concat "^" rmail-unix-mail-delimiter) nil t)
68 (search-forward "\n\n" nil t)
69 (setq lines (count-lines
74 (concat "^" rmail-unix-mail-delimiter) nil t))
76 (setq stop (1- (point)))
77 (set-buffer nntp-server-buffer)
78 (insert (format "221 %d Article retrieved.\n" article))
80 (insert-buffer-substring nndoc-current-buffer start stop)
81 (goto-char (point-max))
82 (insert (format "Lines: %d\n" lines))
84 (setq sequence (cdr sequence)))
86 ;; Fold continuation lines.
88 (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t)
89 (replace-match " " t t))
92 (defun nndoc-open-server (host &optional service)
94 (setq nndoc-status-string "")
95 (setq nndoc-group-alist nil)
96 (nnheader-init-server-buffer))
98 (defun nndoc-close-server (&optional server)
102 (defun nndoc-server-opened (&optional server)
103 "Return server process status."
104 (and nntp-server-buffer
105 (get-buffer nntp-server-buffer)))
107 (defun nndoc-status-message (&optional server)
108 "Return server status response as string."
111 (defun nndoc-request-article (article &optional newsgroup server buffer)
112 "Select ARTICLE by number."
113 (nndoc-possibly-change-buffer newsgroup server)
114 (if (stringp article)
117 (set-buffer nndoc-current-buffer)
118 (if (nndoc-search-for-article article)
120 (re-search-backward (concat "^" rmail-unix-mail-delimiter) nil t)
123 (or (and (re-search-forward
124 (concat "^" rmail-unix-mail-delimiter) nil t)
126 (goto-char (point-max)))
128 (let ((nntp-server-buffer (or buffer nntp-server-buffer)))
129 (set-buffer nntp-server-buffer)
131 (insert-buffer-substring nndoc-current-buffer start stop)
134 (defun nndoc-request-group (group &optional server dont-check)
137 (if (not (nndoc-possibly-change-buffer group server))
139 (setq nndoc-status-string "No such file")
144 (set-buffer nntp-server-buffer)
146 (let ((number (nndoc-number-of-articles)))
149 (nndoc-close-group group)
151 (insert (format "211 %d %d %d %s\n"
152 number 1 number group))
155 (defun nndoc-close-group (group &optional server)
156 (nndoc-possibly-change-buffer group server)
157 (kill-buffer nndoc-current-buffer)
158 (setq nndoc-group-alist (delq (assoc group nndoc-group-alist)
160 (setq nndoc-current-buffer nil)
163 (defun nndoc-request-list (&optional server)
166 (defun nndoc-request-newgroups (date &optional server)
169 (defun nndoc-request-list-newsgroups (&optional server)
172 (defun nndoc-request-post (&optional server)
173 (mail-send-and-exit nil))
175 (fset 'nndoc-request-post-buffer 'nnmail-request-post-buffer)
178 ;;; Internal functions.
180 (defun nndoc-possibly-change-buffer (group file)
182 (or (and nndoc-current-buffer
183 (eq nndoc-current-buffer
184 (setq buf (cdr (assoc group nndoc-group-alist)))))
186 (setq nndoc-current-buffer buf)
187 (if (or (not (file-exists-p file))
188 (file-directory-p file))
190 (setq nndoc-group-alist
191 (cons (cons group (setq nndoc-current-buffer
193 (concat " *nndoc " group "*"))))
196 (set-buffer nndoc-current-buffer)
197 (buffer-disable-undo (current-buffer))
199 (insert-file-contents file)
202 (defun nndoc-number-of-articles ()
204 (set-buffer nndoc-current-buffer)
205 (goto-char (point-min))
207 (delim (concat "^" rmail-unix-mail-delimiter)))
208 (while (re-search-forward delim nil t)
212 (defun nndoc-search-for-article (article)
213 (let ((obuf (current-buffer)))
214 (set-buffer nndoc-current-buffer)
215 (goto-char (point-min))
216 (let ((delim (concat "^" rmail-unix-mail-delimiter)))
217 (while (and (re-search-forward delim nil t)
218 (not (zerop (setq article (1- article))))))
228 ;;; nndoc.el ends here