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41487370 | 1 | ;;; nndoc.el --- single file access for Gnus |
231f989b | 2 | ;; Copyright (C) 1995,96 Free Software Foundation, Inc. |
41487370 LMI |
3 | |
4 | ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no> | |
5 | ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet> | |
6 | ;; Keywords: news | |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
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) | |
13 | ;; any later version. | |
14 | ||
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. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | ;; Boston, MA 02111-1307, USA. | |
41487370 LMI |
24 | |
25 | ;;; Commentary: | |
26 | ||
27 | ;;; Code: | |
28 | ||
29 | (require 'nnheader) | |
231f989b | 30 | (require 'message) |
41487370 | 31 | (require 'nnmail) |
231f989b LMI |
32 | (require 'nnoo) |
33 | (eval-when-compile (require 'cl)) | |
34 | ||
35 | (nnoo-declare nndoc) | |
36 | ||
37 | (defvoo nndoc-article-type 'guess | |
38 | "*Type of the file. | |
39 | One of `mbox', `babyl', `digest', `news', `rnews', `mmdf', `forward', | |
40 | `mime-digest', `standard-digest', `slack-digest', `clari-briefs' or | |
41 | `guess'.") | |
42 | ||
43 | (defvoo nndoc-post-type 'mail | |
44 | "*Whether the nndoc group is `mail' or `post'.") | |
45 | ||
46 | (defvar nndoc-type-alist | |
47 | `((mmdf | |
48 | (article-begin . "^\^A\^A\^A\^A\n") | |
49 | (body-end . "^\^A\^A\^A\^A\n")) | |
50 | (news | |
51 | (article-begin . "^Path:")) | |
52 | (rnews | |
53 | (article-begin . "^#! *rnews +\\([0-9]+\\) *\n") | |
54 | (body-end-function . nndoc-rnews-body-end)) | |
55 | (mbox | |
e1e36689 LMI |
56 | (article-begin . "^From \\([^ \n]*\\(\\|\".*\"[^ \n]*\\)\\) ?\\([^ \n]*\\) *\\([^ ]*\\) *\\([0-9]*\\) *\\([0-9:]*\\) *\\([A-Z]?[A-Z]?[A-Z][A-Z]\\( DST\\)?\\|[-+]?[0-9][0-9][0-9][0-9]\\|\\) * [0-9][0-9]\\([0-9]*\\) *\\([A-Z]?[A-Z]?[A-Z][A-Z]\\( DST\\)?\\|[-+]?[0-9][0-9][0-9][0-9]\\|\\) *\\(remote from .*\\)?\n") |
57 | (article-begin-function . nndoc-mbox-article-begin) | |
231f989b LMI |
58 | (body-end-function . nndoc-mbox-body-end)) |
59 | (babyl | |
60 | (article-begin . "\^_\^L *\n") | |
61 | (body-end . "\^_") | |
62 | (body-begin-function . nndoc-babyl-body-begin) | |
63 | (head-begin-function . nndoc-babyl-head-begin)) | |
64 | (forward | |
65 | (article-begin . "^-+ Start of forwarded message -+\n+") | |
66 | (body-end . "^-+ End of forwarded message -+$") | |
67 | (prepare-body . nndoc-unquote-dashes)) | |
68 | (clari-briefs | |
69 | (article-begin . "^ \\*") | |
70 | (body-end . "^\t------*[ \t]^*\n^ \\*") | |
71 | (body-begin . "^\t") | |
72 | (head-end . "^\t") | |
73 | (generate-head . nndoc-generate-clari-briefs-head) | |
74 | (article-transform . nndoc-transform-clari-briefs)) | |
75 | (slack-digest | |
76 | (article-begin . "^------------------------------*[\n \t]+") | |
77 | (head-end . "^ ?$") | |
78 | (body-end-function . nndoc-digest-body-end) | |
79 | (body-begin . "^ ?$") | |
80 | (file-end . "^End of") | |
81 | (prepare-body . nndoc-unquote-dashes)) | |
82 | (mime-digest | |
83 | (article-begin . "") | |
84 | (head-end . "^ ?$") | |
85 | (body-end . "") | |
86 | (file-end . "")) | |
87 | (standard-digest | |
88 | (first-article . ,(concat "^" (make-string 70 ?-) "\n\n+")) | |
89 | (article-begin . ,(concat "\n\n" (make-string 30 ?-) "\n\n+")) | |
90 | (prepare-body . nndoc-unquote-dashes) | |
91 | (body-end-function . nndoc-digest-body-end) | |
92 | (head-end . "^ ?$") | |
93 | (body-begin . "^ ?\n") | |
94 | (file-end . "^End of .*digest.*[0-9].*\n\\*\\*\\|^End of.*Digest *$")) | |
95 | (guess | |
96 | (guess . nndoc-guess-type)) | |
97 | (digest | |
98 | (guess . nndoc-guess-digest-type)) | |
99 | )) | |
41487370 LMI |
100 | |
101 | \f | |
102 | ||
231f989b LMI |
103 | (defvoo nndoc-file-begin nil) |
104 | (defvoo nndoc-first-article nil) | |
105 | (defvoo nndoc-article-end nil) | |
106 | (defvoo nndoc-article-begin nil) | |
e1e36689 | 107 | (defvoo nndoc-article-begin-function nil) |
231f989b LMI |
108 | (defvoo nndoc-head-begin nil) |
109 | (defvoo nndoc-head-end nil) | |
110 | (defvoo nndoc-file-end nil) | |
111 | (defvoo nndoc-body-begin nil) | |
112 | (defvoo nndoc-body-end-function nil) | |
113 | (defvoo nndoc-body-begin-function nil) | |
114 | (defvoo nndoc-head-begin-function nil) | |
115 | (defvoo nndoc-body-end nil) | |
116 | (defvoo nndoc-dissection-alist nil) | |
117 | (defvoo nndoc-prepare-body nil) | |
118 | (defvoo nndoc-generate-head nil) | |
119 | (defvoo nndoc-article-transform nil) | |
120 | ||
121 | (defvoo nndoc-status-string "") | |
122 | (defvoo nndoc-group-alist nil) | |
123 | (defvoo nndoc-current-buffer nil | |
124 | "Current nndoc news buffer.") | |
125 | (defvoo nndoc-address nil) | |
41487370 LMI |
126 | |
127 | (defconst nndoc-version "nndoc 1.0" | |
128 | "nndoc version.") | |
129 | ||
41487370 LMI |
130 | \f |
131 | ||
41487370 LMI |
132 | ;;; Interface functions |
133 | ||
231f989b | 134 | (nnoo-define-basics nndoc) |
41487370 | 135 | |
231f989b LMI |
136 | (deffoo nndoc-retrieve-headers (articles &optional newsgroup server fetch-old) |
137 | (when (nndoc-possibly-change-buffer newsgroup server) | |
138 | (save-excursion | |
139 | (set-buffer nntp-server-buffer) | |
140 | (erase-buffer) | |
141 | (let (article entry) | |
142 | (if (stringp (car articles)) | |
143 | 'headers | |
144 | (while articles | |
145 | (when (setq entry (cdr (assq (setq article (pop articles)) | |
146 | nndoc-dissection-alist))) | |
147 | (insert (format "221 %d Article retrieved.\n" article)) | |
148 | (if nndoc-generate-head | |
149 | (funcall nndoc-generate-head article) | |
150 | (insert-buffer-substring | |
151 | nndoc-current-buffer (car entry) (nth 1 entry))) | |
152 | (goto-char (point-max)) | |
153 | (or (= (char-after (1- (point))) ?\n) (insert "\n")) | |
154 | (insert (format "Lines: %d\n" (nth 4 entry))) | |
155 | (insert ".\n"))) | |
156 | ||
157 | (nnheader-fold-continuation-lines) | |
158 | 'headers))))) | |
159 | ||
160 | (deffoo nndoc-request-article (article &optional newsgroup server buffer) | |
41487370 LMI |
161 | (nndoc-possibly-change-buffer newsgroup server) |
162 | (save-excursion | |
231f989b LMI |
163 | (let ((buffer (or buffer nntp-server-buffer)) |
164 | (entry (cdr (assq article nndoc-dissection-alist))) | |
165 | beg) | |
41487370 LMI |
166 | (set-buffer buffer) |
167 | (erase-buffer) | |
168 | (if (stringp article) | |
169 | nil | |
231f989b LMI |
170 | (insert-buffer-substring |
171 | nndoc-current-buffer (car entry) (nth 1 entry)) | |
172 | (insert "\n") | |
173 | (setq beg (point)) | |
174 | (insert-buffer-substring | |
175 | nndoc-current-buffer (nth 2 entry) (nth 3 entry)) | |
176 | (goto-char beg) | |
177 | (when nndoc-prepare-body | |
178 | (funcall nndoc-prepare-body)) | |
179 | (when nndoc-article-transform | |
180 | (funcall nndoc-article-transform article)) | |
41487370 LMI |
181 | t)))) |
182 | ||
231f989b | 183 | (deffoo nndoc-request-group (group &optional server dont-check) |
41487370 | 184 | "Select news GROUP." |
231f989b LMI |
185 | (let (number) |
186 | (cond | |
187 | ((not (nndoc-possibly-change-buffer group server)) | |
188 | (nnheader-report 'nndoc "No such file or buffer: %s" | |
189 | nndoc-address)) | |
190 | (dont-check | |
191 | (nnheader-report 'nndoc "Selected group %s" group) | |
192 | t) | |
193 | ((zerop (setq number (length nndoc-dissection-alist))) | |
194 | (nndoc-close-group group) | |
195 | (nnheader-report 'nndoc "No articles in group %s" group)) | |
196 | (t | |
197 | (nnheader-insert "211 %d %d %d %s\n" number 1 number group))))) | |
198 | ||
199 | (deffoo nndoc-request-type (group &optional article) | |
200 | (cond ((not article) 'unknown) | |
201 | (nndoc-post-type nndoc-post-type) | |
202 | (t 'unknown))) | |
203 | ||
204 | (deffoo nndoc-close-group (group &optional server) | |
41487370 | 205 | (nndoc-possibly-change-buffer group server) |
231f989b LMI |
206 | (and nndoc-current-buffer |
207 | (buffer-name nndoc-current-buffer) | |
208 | (kill-buffer nndoc-current-buffer)) | |
41487370 LMI |
209 | (setq nndoc-group-alist (delq (assoc group nndoc-group-alist) |
210 | nndoc-group-alist)) | |
211 | (setq nndoc-current-buffer nil) | |
231f989b LMI |
212 | (nnoo-close-server 'nndoc server) |
213 | (setq nndoc-dissection-alist nil) | |
41487370 LMI |
214 | t) |
215 | ||
231f989b | 216 | (deffoo nndoc-request-list (&optional server) |
41487370 LMI |
217 | nil) |
218 | ||
231f989b | 219 | (deffoo nndoc-request-newgroups (date &optional server) |
41487370 LMI |
220 | nil) |
221 | ||
231f989b | 222 | (deffoo nndoc-request-list-newsgroups (&optional server) |
41487370 LMI |
223 | nil) |
224 | ||
41487370 LMI |
225 | \f |
226 | ;;; Internal functions. | |
227 | ||
228 | (defun nndoc-possibly-change-buffer (group source) | |
229 | (let (buf) | |
230 | (cond | |
231 | ;; The current buffer is this group's buffer. | |
232 | ((and nndoc-current-buffer | |
231f989b | 233 | (buffer-name nndoc-current-buffer) |
41487370 LMI |
234 | (eq nndoc-current-buffer |
235 | (setq buf (cdr (assoc group nndoc-group-alist)))))) | |
236 | ;; We change buffers by taking an old from the group alist. | |
237 | ;; `source' is either a string (a file name) or a buffer object. | |
238 | (buf | |
239 | (setq nndoc-current-buffer buf)) | |
240 | ;; It's a totally new group. | |
241 | ((or (and (bufferp nndoc-address) | |
242 | (buffer-name nndoc-address)) | |
243 | (and (stringp nndoc-address) | |
244 | (file-exists-p nndoc-address) | |
245 | (not (file-directory-p nndoc-address)))) | |
231f989b LMI |
246 | (push (cons group (setq nndoc-current-buffer |
247 | (get-buffer-create | |
248 | (concat " *nndoc " group "*")))) | |
249 | nndoc-group-alist) | |
250 | (setq nndoc-dissection-alist nil) | |
41487370 LMI |
251 | (save-excursion |
252 | (set-buffer nndoc-current-buffer) | |
253 | (buffer-disable-undo (current-buffer)) | |
254 | (erase-buffer) | |
255 | (if (stringp nndoc-address) | |
256 | (insert-file-contents nndoc-address) | |
231f989b LMI |
257 | (insert-buffer-substring nndoc-address))))) |
258 | ;; Initialize the nndoc structures according to this new document. | |
259 | (when (and nndoc-current-buffer | |
260 | (not nndoc-dissection-alist)) | |
41487370 LMI |
261 | (save-excursion |
262 | (set-buffer nndoc-current-buffer) | |
231f989b LMI |
263 | (nndoc-set-delims) |
264 | (nndoc-dissect-buffer))) | |
265 | (unless nndoc-current-buffer | |
266 | (nndoc-close-server)) | |
267 | ;; Return whether we managed to select a file. | |
268 | nndoc-current-buffer)) | |
269 | ||
270 | ;; MIME (RFC 1341) digest hack by Ulrik Dickow <dickow@nbi.dk>. | |
271 | (defun nndoc-guess-digest-type () | |
272 | "Guess what digest type the current document is." | |
273 | (let ((case-fold-search t) ; We match a bit too much, keep it simple. | |
274 | boundary-id b-delimiter entry) | |
41487370 | 275 | (goto-char (point-min)) |
231f989b LMI |
276 | (cond |
277 | ;; MIME digest. | |
278 | ((and | |
279 | (re-search-forward | |
280 | (concat "^Content-Type: *multipart/digest;[ \t\n]*[ \t]" | |
281 | "boundary=\"\\([^\"\n]*[^\" \t\n]\\)\"") | |
282 | nil t) | |
283 | (match-beginning 1)) | |
284 | (setq boundary-id (match-string 1) | |
285 | b-delimiter (concat "\n--" boundary-id "[\n \t]+")) | |
286 | (setq entry (assq 'mime-digest nndoc-type-alist)) | |
287 | (setcdr entry | |
288 | (list | |
289 | (cons 'head-end "^ ?$") | |
290 | (cons 'body-begin "^ ?\n") | |
291 | (cons 'article-begin b-delimiter) | |
292 | (cons 'body-end-function 'nndoc-digest-body-end) | |
293 | ; (cons 'body-end | |
294 | ; (concat "\n--" boundary-id "\\(--\\)?[\n \t]+")) | |
295 | (cons 'file-end (concat "\n--" boundary-id "--[ \t]*$")))) | |
296 | 'mime-digest) | |
297 | ;; Standard digest. | |
298 | ((and (re-search-forward (concat "^" (make-string 70 ?-) "\n\n") nil t) | |
299 | (re-search-forward | |
300 | (concat "\n\n" (make-string 30 ?-) "\n\n") nil t)) | |
301 | 'standard-digest) | |
302 | ;; Stupid digest. | |
303 | (t | |
304 | 'slack-digest)))) | |
305 | ||
306 | (defun nndoc-guess-type () | |
307 | "Guess what document type is in the current buffer." | |
308 | (goto-char (point-min)) | |
309 | (cond | |
310 | ((looking-at message-unix-mail-delimiter) | |
311 | 'mbox) | |
312 | ((looking-at "\^A\^A\^A\^A$") | |
313 | 'mmdf) | |
314 | ((looking-at "^Path:.*\n") | |
315 | 'news) | |
316 | ((looking-at "#! *rnews") | |
317 | 'rnews) | |
318 | ((re-search-forward "\^_\^L *\n" nil t) | |
319 | 'babyl) | |
320 | ((save-excursion | |
321 | (and (re-search-forward "^-+ Start of forwarded message -+\n+" nil t) | |
322 | (not (re-search-forward "^Subject:.*digest" nil t)))) | |
323 | 'forward) | |
324 | ((let ((case-fold-search nil)) | |
325 | (re-search-forward "^\t[^a-z]+ ([^a-z]+) --" nil t)) | |
326 | 'clari-briefs) | |
327 | (t | |
328 | 'digest))) | |
329 | ||
330 | (defun nndoc-set-delims () | |
331 | "Set the nndoc delimiter variables according to the type of the document." | |
332 | (let ((vars '(nndoc-file-begin | |
333 | nndoc-first-article | |
334 | nndoc-article-end nndoc-head-begin nndoc-head-end | |
335 | nndoc-file-end nndoc-article-begin | |
336 | nndoc-body-begin nndoc-body-end-function nndoc-body-end | |
337 | nndoc-prepare-body nndoc-article-transform | |
338 | nndoc-generate-head nndoc-body-begin-function | |
e1e36689 | 339 | nndoc-head-begin-function nndoc-article-begin-function))) |
231f989b LMI |
340 | (while vars |
341 | (set (pop vars) nil))) | |
342 | (let* (defs guess) | |
343 | ;; Guess away until we find the real file type. | |
344 | (while (setq defs (cdr (assq nndoc-article-type nndoc-type-alist)) | |
345 | guess (assq 'guess defs)) | |
346 | (setq nndoc-article-type (funcall (cdr guess)))) | |
347 | ;; Set the nndoc variables. | |
348 | (while defs | |
349 | (set (intern (format "nndoc-%s" (caar defs))) | |
350 | (cdr (pop defs)))))) | |
351 | ||
352 | (defun nndoc-search (regexp) | |
353 | (prog1 | |
354 | (re-search-forward regexp nil t) | |
355 | (beginning-of-line))) | |
356 | ||
357 | (defun nndoc-dissect-buffer () | |
358 | "Go through the document and partition it into heads/bodies/articles." | |
359 | (let ((i 0) | |
360 | (first t) | |
361 | head-begin head-end body-begin body-end) | |
362 | (setq nndoc-dissection-alist nil) | |
41487370 LMI |
363 | (save-excursion |
364 | (set-buffer nndoc-current-buffer) | |
41487370 | 365 | (goto-char (point-min)) |
231f989b LMI |
366 | ;; Find the beginning of the file. |
367 | (when nndoc-file-begin | |
368 | (nndoc-search nndoc-file-begin)) | |
369 | ;; Go through the file. | |
370 | (while (if (and first nndoc-first-article) | |
371 | (nndoc-search nndoc-first-article) | |
e1e36689 LMI |
372 | (if nndoc-article-begin-function |
373 | (funcall nndoc-article-begin-function) | |
374 | (nndoc-search nndoc-article-begin))) | |
231f989b LMI |
375 | (setq first nil) |
376 | (cond (nndoc-head-begin-function | |
377 | (funcall nndoc-head-begin-function)) | |
378 | (nndoc-head-begin | |
379 | (nndoc-search nndoc-head-begin))) | |
380 | (if (and nndoc-file-end | |
381 | (looking-at nndoc-file-end)) | |
382 | (goto-char (point-max)) | |
383 | (setq head-begin (point)) | |
384 | (nndoc-search (or nndoc-head-end "^$")) | |
385 | (setq head-end (point)) | |
386 | (if nndoc-body-begin-function | |
387 | (funcall nndoc-body-begin-function) | |
388 | (nndoc-search (or nndoc-body-begin "^\n"))) | |
389 | (setq body-begin (point)) | |
390 | (or (and nndoc-body-end-function | |
391 | (funcall nndoc-body-end-function)) | |
392 | (and nndoc-body-end | |
393 | (nndoc-search nndoc-body-end)) | |
e1e36689 LMI |
394 | (if nndoc-article-begin-function |
395 | (funcall nndoc-article-begin-function) | |
396 | (nndoc-search nndoc-article-begin)) | |
231f989b LMI |
397 | (progn |
398 | (goto-char (point-max)) | |
399 | (when nndoc-file-end | |
400 | (and (re-search-backward nndoc-file-end nil t) | |
401 | (beginning-of-line))))) | |
402 | (setq body-end (point)) | |
403 | (push (list (incf i) head-begin head-end body-begin body-end | |
404 | (count-lines body-begin body-end)) | |
405 | nndoc-dissection-alist)))))) | |
406 | ||
407 | (defun nndoc-unquote-dashes () | |
408 | "Unquote quoted non-separators in digests." | |
409 | (while (re-search-forward "^- -"nil t) | |
410 | (replace-match "-" t t))) | |
411 | ||
412 | (defun nndoc-digest-body-end () | |
413 | (and (re-search-forward nndoc-article-begin nil t) | |
414 | (goto-char (match-beginning 0)))) | |
415 | ||
e1e36689 LMI |
416 | (defun nndoc-mbox-article-begin () |
417 | (when (re-search-forward nndoc-article-begin nil t) | |
418 | (goto-char (match-beginning 0)))) | |
419 | ||
231f989b LMI |
420 | (defun nndoc-mbox-body-end () |
421 | (let ((beg (point)) | |
422 | len end) | |
423 | (when | |
424 | (save-excursion | |
425 | (and (re-search-backward nndoc-article-begin nil t) | |
426 | (setq end (point)) | |
427 | (search-forward "\n\n" beg t) | |
428 | (re-search-backward | |
429 | "^Content-Length:[ \t]*\\([0-9]+\\) *$" end t) | |
430 | (setq len (string-to-int (match-string 1))) | |
431 | (search-forward "\n\n" beg t) | |
432 | (or (= (setq len (+ (point) len)) (point-max)) | |
433 | (and (< len (point-max)) | |
434 | (goto-char len) | |
435 | (looking-at nndoc-article-begin))))) | |
436 | (goto-char len)))) | |
437 | ||
438 | (defun nndoc-rnews-body-end () | |
439 | (and (re-search-backward nndoc-article-begin nil t) | |
440 | (forward-line 1) | |
441 | (goto-char (+ (point) (string-to-int (match-string 1)))))) | |
442 | ||
443 | (defun nndoc-transform-clari-briefs (article) | |
444 | (goto-char (point-min)) | |
445 | (when (looking-at " *\\*\\(.*\\)\n") | |
446 | (replace-match "" t t)) | |
447 | (nndoc-generate-clari-briefs-head article)) | |
448 | ||
449 | (defun nndoc-generate-clari-briefs-head (article) | |
450 | (let ((entry (cdr (assq article nndoc-dissection-alist))) | |
451 | subject from) | |
452 | (save-excursion | |
453 | (set-buffer nndoc-current-buffer) | |
454 | (save-restriction | |
455 | (narrow-to-region (car entry) (nth 3 entry)) | |
41487370 | 456 | (goto-char (point-min)) |
231f989b LMI |
457 | (when (looking-at " *\\*\\(.*\\)$") |
458 | (setq subject (match-string 1)) | |
459 | (when (string-match "[ \t]+$" subject) | |
460 | (setq subject (substring subject 0 (match-beginning 0))))) | |
461 | (when | |
462 | (let ((case-fold-search nil)) | |
463 | (re-search-forward | |
464 | "^\t\\([^a-z]+\\(,[^(]+\\)? ([^a-z]+)\\) --" nil t)) | |
465 | (setq from (match-string 1))))) | |
466 | (insert "From: " "clari@clari.net (" (or from "unknown") ")" | |
467 | "\nSubject: " (or subject "(no subject)") "\n"))) | |
468 | ||
469 | (defun nndoc-babyl-body-begin () | |
470 | (re-search-forward "^\n" nil t) | |
471 | (when (looking-at "\*\*\* EOOH \*\*\*") | |
472 | (re-search-forward "^\n" nil t))) | |
473 | ||
474 | (defun nndoc-babyl-head-begin () | |
475 | (when (re-search-forward "^[0-9].*\n" nil t) | |
476 | (when (looking-at "\*\*\* EOOH \*\*\*") | |
477 | (forward-line 1)) | |
478 | t)) | |
41487370 LMI |
479 | |
480 | (provide 'nndoc) | |
481 | ||
482 | ;;; nndoc.el ends here |