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eec82323 | 1 | ;;; nndoc.el --- single file access for Gnus |
6748645f | 2 | ;; Copyright (C) 1995,96,97,98 Free Software Foundation, Inc. |
eec82323 | 3 | |
6748645f | 4 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
eec82323 LMI |
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 | |
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. | |
24 | ||
25 | ;;; Commentary: | |
26 | ||
27 | ;;; Code: | |
28 | ||
29 | (require 'nnheader) | |
30 | (require 'message) | |
31 | (require 'nnmail) | |
32 | (require 'nnoo) | |
6748645f | 33 | (require 'gnus-util) |
eec82323 LMI |
34 | (eval-when-compile (require 'cl)) |
35 | ||
36 | (nnoo-declare nndoc) | |
37 | ||
38 | (defvoo nndoc-article-type 'guess | |
39 | "*Type of the file. | |
40 | One of `mbox', `babyl', `digest', `news', `rnews', `mmdf', `forward', | |
6748645f | 41 | `rfc934', `rfc822-forward', `mime-digest', `mime-parts', `standard-digest', |
eec82323 LMI |
42 | `slack-digest', `clari-briefs' or `guess'.") |
43 | ||
44 | (defvoo nndoc-post-type 'mail | |
45 | "*Whether the nndoc group is `mail' or `post'.") | |
46 | ||
6748645f LMI |
47 | (defvoo nndoc-open-document-hook 'nnheader-ms-strip-cr |
48 | "Hook run after opening a document. | |
49 | The default function removes all trailing carriage returns | |
50 | from the document.") | |
51 | ||
eec82323 LMI |
52 | (defvar nndoc-type-alist |
53 | `((mmdf | |
54 | (article-begin . "^\^A\^A\^A\^A\n") | |
55 | (body-end . "^\^A\^A\^A\^A\n")) | |
56 | (news | |
57 | (article-begin . "^Path:")) | |
58 | (rnews | |
59 | (article-begin . "^#! *rnews +\\([0-9]+\\) *\n") | |
60 | (body-end-function . nndoc-rnews-body-end)) | |
61 | (mbox | |
62 | (article-begin-function . nndoc-mbox-article-begin) | |
63 | (body-end-function . nndoc-mbox-body-end)) | |
64 | (babyl | |
65 | (article-begin . "\^_\^L *\n") | |
66 | (body-end . "\^_") | |
67 | (body-begin-function . nndoc-babyl-body-begin) | |
68 | (head-begin-function . nndoc-babyl-head-begin)) | |
69 | (forward | |
70 | (article-begin . "^-+ Start of forwarded message -+\n+") | |
71 | (body-end . "^-+ End of forwarded message -+$") | |
72 | (prepare-body-function . nndoc-unquote-dashes)) | |
73 | (rfc934 | |
74 | (article-begin . "^--.*\n+") | |
75 | (body-end . "^--.*$") | |
76 | (prepare-body-function . nndoc-unquote-dashes)) | |
77 | (clari-briefs | |
78 | (article-begin . "^ \\*") | |
79 | (body-end . "^\t------*[ \t]^*\n^ \\*") | |
80 | (body-begin . "^\t") | |
81 | (head-end . "^\t") | |
82 | (generate-head-function . nndoc-generate-clari-briefs-head) | |
83 | (article-transform-function . nndoc-transform-clari-briefs)) | |
84 | (mime-digest | |
85 | (article-begin . "") | |
86 | (head-end . "^ ?$") | |
87 | (body-end . "") | |
88 | (file-end . "") | |
89 | (subtype digest guess)) | |
6748645f LMI |
90 | (mime-parts |
91 | (generate-head-function . nndoc-generate-mime-parts-head) | |
92 | (article-transform-function . nndoc-transform-mime-parts)) | |
eec82323 | 93 | (standard-digest |
6748645f LMI |
94 | (first-article . ,(concat "^" (make-string 70 ?-) "\n *\n+")) |
95 | (article-begin . ,(concat "^\n" (make-string 30 ?-) "\n *\n+")) | |
eec82323 LMI |
96 | (prepare-body-function . nndoc-unquote-dashes) |
97 | (body-end-function . nndoc-digest-body-end) | |
6748645f LMI |
98 | (head-end . "^ *$") |
99 | (body-begin . "^ *\n") | |
eec82323 LMI |
100 | (file-end . "^End of .*digest.*[0-9].*\n\\*\\*\\|^End of.*Digest *$") |
101 | (subtype digest guess)) | |
102 | (slack-digest | |
103 | (article-begin . "^------------------------------*[\n \t]+") | |
104 | (head-end . "^ ?$") | |
105 | (body-end-function . nndoc-digest-body-end) | |
106 | (body-begin . "^ ?$") | |
107 | (file-end . "^End of") | |
108 | (prepare-body-function . nndoc-unquote-dashes) | |
109 | (subtype digest guess)) | |
110 | (lanl-gov-announce | |
111 | (article-begin . "^\\\\\\\\\n") | |
112 | (head-begin . "^Paper.*:") | |
113 | (head-end . "\\(^\\\\\\\\.*\n\\|-----------------\\)") | |
114 | (body-begin . "") | |
115 | (body-end . "-------------------------------------------------") | |
116 | (file-end . "^Title: Recent Seminal") | |
117 | (generate-head-function . nndoc-generate-lanl-gov-head) | |
118 | (article-transform-function . nndoc-transform-lanl-gov-announce) | |
119 | (subtype preprints guess)) | |
120 | (rfc822-forward | |
121 | (article-begin . "^\n") | |
122 | (body-end-function . nndoc-rfc822-forward-body-end-function)) | |
123 | (guess | |
124 | (guess . t) | |
125 | (subtype nil)) | |
126 | (digest | |
127 | (guess . t) | |
128 | (subtype nil)) | |
129 | (preprints | |
130 | (guess . t) | |
131 | (subtype nil)))) | |
132 | ||
133 | \f | |
eec82323 LMI |
134 | (defvoo nndoc-file-begin nil) |
135 | (defvoo nndoc-first-article nil) | |
eec82323 LMI |
136 | (defvoo nndoc-article-begin nil) |
137 | (defvoo nndoc-head-begin nil) | |
138 | (defvoo nndoc-head-end nil) | |
139 | (defvoo nndoc-file-end nil) | |
140 | (defvoo nndoc-body-begin nil) | |
141 | (defvoo nndoc-body-end-function nil) | |
142 | (defvoo nndoc-body-begin-function nil) | |
143 | (defvoo nndoc-head-begin-function nil) | |
144 | (defvoo nndoc-body-end nil) | |
6748645f LMI |
145 | ;; nndoc-dissection-alist is a list of sublists. Each sublist holds the |
146 | ;; following items. ARTICLE is an ordinal starting at 1. HEAD-BEGIN, | |
147 | ;; HEAD-END, BODY-BEGIN and BODY-END are positions in the `nndoc' buffer. | |
148 | ;; LINE-COUNT is a count of lines in the body. SUBJECT, MESSAGE-ID and | |
149 | ;; REFERENCES, only present for MIME dissections, are field values. | |
eec82323 LMI |
150 | (defvoo nndoc-dissection-alist nil) |
151 | (defvoo nndoc-prepare-body-function nil) | |
152 | (defvoo nndoc-generate-head-function nil) | |
153 | (defvoo nndoc-article-transform-function nil) | |
154 | (defvoo nndoc-article-begin-function nil) | |
155 | ||
156 | (defvoo nndoc-status-string "") | |
157 | (defvoo nndoc-group-alist nil) | |
158 | (defvoo nndoc-current-buffer nil | |
159 | "Current nndoc news buffer.") | |
160 | (defvoo nndoc-address nil) | |
6748645f LMI |
161 | (defvoo nndoc-mime-header nil) |
162 | (defvoo nndoc-mime-subject nil) | |
eec82323 LMI |
163 | |
164 | (defconst nndoc-version "nndoc 1.0" | |
165 | "nndoc version.") | |
166 | ||
167 | \f | |
168 | ||
169 | ;;; Interface functions | |
170 | ||
171 | (nnoo-define-basics nndoc) | |
172 | ||
173 | (deffoo nndoc-retrieve-headers (articles &optional newsgroup server fetch-old) | |
174 | (when (nndoc-possibly-change-buffer newsgroup server) | |
175 | (save-excursion | |
176 | (set-buffer nntp-server-buffer) | |
177 | (erase-buffer) | |
178 | (let (article entry) | |
179 | (if (stringp (car articles)) | |
180 | 'headers | |
181 | (while articles | |
182 | (when (setq entry (cdr (assq (setq article (pop articles)) | |
183 | nndoc-dissection-alist))) | |
184 | (insert (format "221 %d Article retrieved.\n" article)) | |
185 | (if nndoc-generate-head-function | |
186 | (funcall nndoc-generate-head-function article) | |
187 | (insert-buffer-substring | |
188 | nndoc-current-buffer (car entry) (nth 1 entry))) | |
189 | (goto-char (point-max)) | |
190 | (unless (= (char-after (1- (point))) ?\n) | |
191 | (insert "\n")) | |
192 | (insert (format "Lines: %d\n" (nth 4 entry))) | |
193 | (insert ".\n"))) | |
194 | ||
195 | (nnheader-fold-continuation-lines) | |
196 | 'headers))))) | |
197 | ||
198 | (deffoo nndoc-request-article (article &optional newsgroup server buffer) | |
199 | (nndoc-possibly-change-buffer newsgroup server) | |
200 | (save-excursion | |
201 | (let ((buffer (or buffer nntp-server-buffer)) | |
202 | (entry (cdr (assq article nndoc-dissection-alist))) | |
203 | beg) | |
204 | (set-buffer buffer) | |
205 | (erase-buffer) | |
206 | (when entry | |
207 | (if (stringp article) | |
208 | nil | |
209 | (insert-buffer-substring | |
210 | nndoc-current-buffer (car entry) (nth 1 entry)) | |
211 | (insert "\n") | |
212 | (setq beg (point)) | |
213 | (insert-buffer-substring | |
214 | nndoc-current-buffer (nth 2 entry) (nth 3 entry)) | |
215 | (goto-char beg) | |
216 | (when nndoc-prepare-body-function | |
217 | (funcall nndoc-prepare-body-function)) | |
218 | (when nndoc-article-transform-function | |
219 | (funcall nndoc-article-transform-function article)) | |
220 | t))))) | |
221 | ||
222 | (deffoo nndoc-request-group (group &optional server dont-check) | |
223 | "Select news GROUP." | |
224 | (let (number) | |
225 | (cond | |
226 | ((not (nndoc-possibly-change-buffer group server)) | |
227 | (nnheader-report 'nndoc "No such file or buffer: %s" | |
228 | nndoc-address)) | |
229 | (dont-check | |
230 | (nnheader-report 'nndoc "Selected group %s" group) | |
231 | t) | |
232 | ((zerop (setq number (length nndoc-dissection-alist))) | |
233 | (nndoc-close-group group) | |
234 | (nnheader-report 'nndoc "No articles in group %s" group)) | |
235 | (t | |
236 | (nnheader-insert "211 %d %d %d %s\n" number 1 number group))))) | |
237 | ||
238 | (deffoo nndoc-request-type (group &optional article) | |
239 | (cond ((not article) 'unknown) | |
240 | (nndoc-post-type nndoc-post-type) | |
241 | (t 'unknown))) | |
242 | ||
243 | (deffoo nndoc-close-group (group &optional server) | |
244 | (nndoc-possibly-change-buffer group server) | |
245 | (and nndoc-current-buffer | |
246 | (buffer-name nndoc-current-buffer) | |
247 | (kill-buffer nndoc-current-buffer)) | |
248 | (setq nndoc-group-alist (delq (assoc group nndoc-group-alist) | |
249 | nndoc-group-alist)) | |
250 | (setq nndoc-current-buffer nil) | |
251 | (nnoo-close-server 'nndoc server) | |
252 | (setq nndoc-dissection-alist nil) | |
253 | t) | |
254 | ||
255 | (deffoo nndoc-request-list (&optional server) | |
256 | nil) | |
257 | ||
258 | (deffoo nndoc-request-newgroups (date &optional server) | |
259 | nil) | |
260 | ||
261 | (deffoo nndoc-request-list-newsgroups (&optional server) | |
262 | nil) | |
263 | ||
264 | \f | |
265 | ;;; Internal functions. | |
266 | ||
267 | (defun nndoc-possibly-change-buffer (group source) | |
268 | (let (buf) | |
269 | (cond | |
270 | ;; The current buffer is this group's buffer. | |
271 | ((and nndoc-current-buffer | |
272 | (buffer-name nndoc-current-buffer) | |
273 | (eq nndoc-current-buffer | |
274 | (setq buf (cdr (assoc group nndoc-group-alist)))))) | |
275 | ;; We change buffers by taking an old from the group alist. | |
276 | ;; `source' is either a string (a file name) or a buffer object. | |
277 | (buf | |
278 | (setq nndoc-current-buffer buf)) | |
279 | ;; It's a totally new group. | |
280 | ((or (and (bufferp nndoc-address) | |
281 | (buffer-name nndoc-address)) | |
282 | (and (stringp nndoc-address) | |
283 | (file-exists-p nndoc-address) | |
284 | (not (file-directory-p nndoc-address)))) | |
285 | (push (cons group (setq nndoc-current-buffer | |
286 | (get-buffer-create | |
287 | (concat " *nndoc " group "*")))) | |
288 | nndoc-group-alist) | |
289 | (setq nndoc-dissection-alist nil) | |
290 | (save-excursion | |
291 | (set-buffer nndoc-current-buffer) | |
292 | (buffer-disable-undo (current-buffer)) | |
293 | (erase-buffer) | |
294 | (if (stringp nndoc-address) | |
295 | (nnheader-insert-file-contents nndoc-address) | |
6748645f LMI |
296 | (insert-buffer-substring nndoc-address)) |
297 | (run-hooks 'nndoc-open-document-hook)))) | |
eec82323 LMI |
298 | ;; Initialize the nndoc structures according to this new document. |
299 | (when (and nndoc-current-buffer | |
300 | (not nndoc-dissection-alist)) | |
301 | (save-excursion | |
302 | (set-buffer nndoc-current-buffer) | |
303 | (nndoc-set-delims) | |
6748645f LMI |
304 | (if (eq nndoc-article-type 'mime-parts) |
305 | (nndoc-dissect-mime-parts) | |
306 | (nndoc-dissect-buffer)))) | |
eec82323 LMI |
307 | (unless nndoc-current-buffer |
308 | (nndoc-close-server)) | |
309 | ;; Return whether we managed to select a file. | |
310 | nndoc-current-buffer)) | |
311 | ||
312 | ;;; | |
313 | ;;; Deciding what document type we have | |
314 | ;;; | |
315 | ||
316 | (defun nndoc-set-delims () | |
317 | "Set the nndoc delimiter variables according to the type of the document." | |
318 | (let ((vars '(nndoc-file-begin | |
319 | nndoc-first-article | |
6748645f LMI |
320 | nndoc-article-begin-function |
321 | nndoc-head-begin nndoc-head-end | |
eec82323 LMI |
322 | nndoc-file-end nndoc-article-begin |
323 | nndoc-body-begin nndoc-body-end-function nndoc-body-end | |
324 | nndoc-prepare-body-function nndoc-article-transform-function | |
325 | nndoc-generate-head-function nndoc-body-begin-function | |
326 | nndoc-head-begin-function))) | |
327 | (while vars | |
328 | (set (pop vars) nil))) | |
329 | (let (defs) | |
330 | ;; Guess away until we find the real file type. | |
331 | (while (assq 'guess (setq defs (cdr (assq nndoc-article-type | |
332 | nndoc-type-alist)))) | |
333 | (setq nndoc-article-type (nndoc-guess-type nndoc-article-type))) | |
334 | ;; Set the nndoc variables. | |
335 | (while defs | |
336 | (set (intern (format "nndoc-%s" (caar defs))) | |
337 | (cdr (pop defs)))))) | |
338 | ||
339 | (defun nndoc-guess-type (subtype) | |
340 | (let ((alist nndoc-type-alist) | |
341 | results result entry) | |
342 | (while (and (not result) | |
343 | (setq entry (pop alist))) | |
344 | (when (memq subtype (or (cdr (assq 'subtype entry)) '(guess))) | |
345 | (goto-char (point-min)) | |
346 | (when (numberp (setq result (funcall (intern | |
347 | (format "nndoc-%s-type-p" | |
348 | (car entry)))))) | |
349 | (push (cons result entry) results) | |
350 | (setq result nil)))) | |
351 | (unless (or result results) | |
352 | (error "Document is not of any recognized type")) | |
353 | (if result | |
354 | (car entry) | |
6748645f | 355 | (cadar (sort results 'car-less-than-car))))) |
eec82323 LMI |
356 | |
357 | ;;; | |
358 | ;;; Built-in type predicates and functions | |
359 | ;;; | |
360 | ||
361 | (defun nndoc-mbox-type-p () | |
362 | (when (looking-at message-unix-mail-delimiter) | |
363 | t)) | |
364 | ||
365 | (defun nndoc-mbox-article-begin () | |
366 | (when (re-search-forward (concat "^" message-unix-mail-delimiter) nil t) | |
367 | (goto-char (match-beginning 0)))) | |
368 | ||
369 | (defun nndoc-mbox-body-end () | |
370 | (let ((beg (point)) | |
371 | len end) | |
372 | (when | |
373 | (save-excursion | |
374 | (and (re-search-backward | |
375 | (concat "^" message-unix-mail-delimiter) nil t) | |
376 | (setq end (point)) | |
377 | (search-forward "\n\n" beg t) | |
378 | (re-search-backward | |
379 | "^Content-Length:[ \t]*\\([0-9]+\\) *$" end t) | |
380 | (setq len (string-to-int (match-string 1))) | |
381 | (search-forward "\n\n" beg t) | |
382 | (unless (= (setq len (+ (point) len)) (point-max)) | |
383 | (and (< len (point-max)) | |
384 | (goto-char len) | |
385 | (looking-at message-unix-mail-delimiter))))) | |
386 | (goto-char len)))) | |
387 | ||
388 | (defun nndoc-mmdf-type-p () | |
389 | (when (looking-at "\^A\^A\^A\^A$") | |
390 | t)) | |
391 | ||
392 | (defun nndoc-news-type-p () | |
393 | (when (looking-at "^Path:.*\n") | |
394 | t)) | |
395 | ||
396 | (defun nndoc-rnews-type-p () | |
397 | (when (looking-at "#! *rnews") | |
398 | t)) | |
399 | ||
400 | (defun nndoc-rnews-body-end () | |
401 | (and (re-search-backward nndoc-article-begin nil t) | |
402 | (forward-line 1) | |
403 | (goto-char (+ (point) (string-to-int (match-string 1)))))) | |
404 | ||
405 | (defun nndoc-babyl-type-p () | |
406 | (when (re-search-forward "\^_\^L *\n" nil t) | |
407 | t)) | |
408 | ||
409 | (defun nndoc-babyl-body-begin () | |
410 | (re-search-forward "^\n" nil t) | |
6748645f | 411 | (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*") |
eec82323 LMI |
412 | (let ((next (or (save-excursion |
413 | (re-search-forward nndoc-article-begin nil t)) | |
414 | (point-max)))) | |
415 | (unless (re-search-forward "^\n" next t) | |
416 | (goto-char next) | |
417 | (forward-line -1) | |
418 | (insert "\n") | |
419 | (forward-line -1))))) | |
420 | ||
421 | (defun nndoc-babyl-head-begin () | |
422 | (when (re-search-forward "^[0-9].*\n" nil t) | |
6748645f | 423 | (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*") |
eec82323 LMI |
424 | (forward-line 1)) |
425 | t)) | |
426 | ||
427 | (defun nndoc-forward-type-p () | |
428 | (when (and (re-search-forward "^-+ Start of forwarded message -+\n+" nil t) | |
429 | (not (re-search-forward "^Subject:.*digest" nil t)) | |
430 | (not (re-search-backward "^From:" nil t 2)) | |
431 | (not (re-search-forward "^From:" nil t 2))) | |
432 | t)) | |
433 | ||
434 | (defun nndoc-rfc934-type-p () | |
435 | (when (and (re-search-forward "^-+ Start of forwarded.*\n+" nil t) | |
436 | (not (re-search-forward "^Subject:.*digest" nil t)) | |
437 | (not (re-search-backward "^From:" nil t 2)) | |
438 | (not (re-search-forward "^From:" nil t 2))) | |
439 | t)) | |
440 | ||
441 | (defun nndoc-rfc822-forward-type-p () | |
442 | (save-restriction | |
443 | (message-narrow-to-head) | |
444 | (when (re-search-forward "^Content-Type: *message/rfc822" nil t) | |
445 | t))) | |
446 | ||
447 | (defun nndoc-rfc822-forward-body-end-function () | |
448 | (goto-char (point-max))) | |
449 | ||
6748645f LMI |
450 | (defun nndoc-mime-parts-type-p () |
451 | (let ((case-fold-search t) | |
452 | (limit (search-forward "\n\n" nil t))) | |
453 | (goto-char (point-min)) | |
454 | (when (and limit | |
455 | (re-search-forward | |
456 | (concat "\ | |
457 | ^Content-Type:[ \t]*multipart/[a-z]+;\\(.*;\\)*" | |
458 | "[ \t\n]*[ \t]boundary=\"?[^\"\n]*[^\" \t\n]") | |
459 | limit t)) | |
460 | t))) | |
461 | ||
462 | (defun nndoc-transform-mime-parts (article) | |
463 | (unless (= article 1) | |
464 | ;; Ensure some MIME-Version. | |
465 | (goto-char (point-min)) | |
466 | (search-forward "\n\n") | |
467 | (let ((case-fold-search nil) | |
468 | (limit (point))) | |
469 | (goto-char (point-min)) | |
470 | (or (save-excursion (re-search-forward "^MIME-Version:" limit t)) | |
471 | (insert "Mime-Version: 1.0\n"))) | |
472 | ;; Generate default header before entity fields. | |
473 | (goto-char (point-min)) | |
474 | (nndoc-generate-mime-parts-head article t))) | |
475 | ||
476 | (defun nndoc-generate-mime-parts-head (article &optional body-present) | |
477 | (let ((entry (cdr (assq (if body-present 1 article) nndoc-dissection-alist)))) | |
478 | (let ((subject (if body-present | |
479 | nndoc-mime-subject | |
480 | (concat "<" (nth 5 entry) ">"))) | |
481 | (message-id (nth 6 entry)) | |
482 | (references (nth 7 entry))) | |
483 | (insert nndoc-mime-header) | |
484 | (and subject (insert "Subject: " subject "\n")) | |
485 | (and message-id (insert "Message-ID: " message-id "\n")) | |
486 | (and references (insert "References: " references "\n"))))) | |
487 | ||
eec82323 LMI |
488 | (defun nndoc-clari-briefs-type-p () |
489 | (when (let ((case-fold-search nil)) | |
490 | (re-search-forward "^\t[^a-z]+ ([^a-z]+) --" nil t)) | |
491 | t)) | |
492 | ||
493 | (defun nndoc-transform-clari-briefs (article) | |
494 | (goto-char (point-min)) | |
495 | (when (looking-at " *\\*\\(.*\\)\n") | |
496 | (replace-match "" t t)) | |
497 | (nndoc-generate-clari-briefs-head article)) | |
498 | ||
499 | (defun nndoc-generate-clari-briefs-head (article) | |
500 | (let ((entry (cdr (assq article nndoc-dissection-alist))) | |
501 | subject from) | |
502 | (save-excursion | |
503 | (set-buffer nndoc-current-buffer) | |
504 | (save-restriction | |
505 | (narrow-to-region (car entry) (nth 3 entry)) | |
506 | (goto-char (point-min)) | |
507 | (when (looking-at " *\\*\\(.*\\)$") | |
508 | (setq subject (match-string 1)) | |
509 | (when (string-match "[ \t]+$" subject) | |
510 | (setq subject (substring subject 0 (match-beginning 0))))) | |
511 | (when | |
512 | (let ((case-fold-search nil)) | |
513 | (re-search-forward | |
514 | "^\t\\([^a-z]+\\(,[^(]+\\)? ([^a-z]+)\\) --" nil t)) | |
515 | (setq from (match-string 1))))) | |
516 | (insert "From: " "clari@clari.net (" (or from "unknown") ")" | |
517 | "\nSubject: " (or subject "(no subject)") "\n"))) | |
518 | ||
519 | (defun nndoc-mime-digest-type-p () | |
520 | (let ((case-fold-search t) | |
521 | boundary-id b-delimiter entry) | |
522 | (when (and | |
523 | (re-search-forward | |
524 | (concat "^Content-Type: *multipart/digest;[ \t\n]*[ \t]" | |
6748645f | 525 | "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)") |
eec82323 LMI |
526 | nil t) |
527 | (match-beginning 1)) | |
528 | (setq boundary-id (match-string 1) | |
529 | b-delimiter (concat "\n--" boundary-id "[\n \t]+")) | |
530 | (setq entry (assq 'mime-digest nndoc-type-alist)) | |
531 | (setcdr entry | |
532 | (list | |
533 | (cons 'head-end "^ ?$") | |
534 | (cons 'body-begin "^ ?\n") | |
535 | (cons 'article-begin b-delimiter) | |
536 | (cons 'body-end-function 'nndoc-digest-body-end) | |
537 | (cons 'file-end (concat "\n--" boundary-id "--[ \t]*$")))) | |
538 | t))) | |
539 | ||
540 | (defun nndoc-standard-digest-type-p () | |
541 | (when (and (re-search-forward (concat "^" (make-string 70 ?-) "\n\n") nil t) | |
542 | (re-search-forward | |
543 | (concat "\n\n" (make-string 30 ?-) "\n\n") nil t)) | |
544 | t)) | |
545 | ||
546 | (defun nndoc-digest-body-end () | |
547 | (and (re-search-forward nndoc-article-begin nil t) | |
548 | (goto-char (match-beginning 0)))) | |
549 | ||
550 | (defun nndoc-slack-digest-type-p () | |
551 | 0) | |
552 | ||
553 | (defun nndoc-lanl-gov-announce-type-p () | |
554 | (when (let ((case-fold-search nil)) | |
555 | (re-search-forward "^\\\\\\\\\nPaper: [a-z-]+/[0-9]+" nil t)) | |
556 | t)) | |
557 | ||
558 | (defun nndoc-transform-lanl-gov-announce (article) | |
559 | (goto-char (point-max)) | |
560 | (when (re-search-backward "^\\\\\\\\ +(\\([^ ]*\\) , *\\([^ ]*\\))" nil t) | |
561 | (replace-match "\n\nGet it at \\1 (\\2)" t nil)) | |
562 | ;; (when (re-search-backward "^\\\\\\\\$" nil t) | |
563 | ;; (replace-match "" t t)) | |
564 | ) | |
565 | ||
566 | (defun nndoc-generate-lanl-gov-head (article) | |
567 | (let ((entry (cdr (assq article nndoc-dissection-alist))) | |
568 | (e-mail "no address given") | |
569 | subject from) | |
570 | (save-excursion | |
571 | (set-buffer nndoc-current-buffer) | |
572 | (save-restriction | |
573 | (narrow-to-region (car entry) (nth 1 entry)) | |
574 | (goto-char (point-min)) | |
575 | (when (looking-at "^Paper.*: \\([a-z-]+/[0-9]+\\)") | |
576 | (setq subject (concat " (" (match-string 1) ")")) | |
577 | (when (re-search-forward "^From: \\([^ ]+\\)" nil t) | |
578 | (setq e-mail (match-string 1))) | |
579 | (when (re-search-forward "^Title: \\([^\f]*\\)\nAuthors?: \\(.*\\)" | |
580 | nil t) | |
581 | (setq subject (concat (match-string 1) subject)) | |
582 | (setq from (concat (match-string 2) " <" e-mail ">")))) | |
583 | )) | |
584 | (while (and from (string-match "(\[^)\]*)" from)) | |
585 | (setq from (replace-match "" t t from))) | |
586 | (insert "From: " (or from "unknown") | |
587 | "\nSubject: " (or subject "(no subject)") "\n"))) | |
588 | ||
6748645f LMI |
589 | (deffoo nndoc-request-accept-article (group &optional server last) |
590 | nil) | |
591 | ||
eec82323 LMI |
592 | |
593 | ||
594 | ;;; | |
595 | ;;; Functions for dissecting the documents | |
596 | ;;; | |
597 | ||
598 | (defun nndoc-search (regexp) | |
599 | (prog1 | |
600 | (re-search-forward regexp nil t) | |
601 | (beginning-of-line))) | |
602 | ||
603 | (defun nndoc-dissect-buffer () | |
604 | "Go through the document and partition it into heads/bodies/articles." | |
605 | (let ((i 0) | |
606 | (first t) | |
607 | head-begin head-end body-begin body-end) | |
608 | (setq nndoc-dissection-alist nil) | |
609 | (save-excursion | |
610 | (set-buffer nndoc-current-buffer) | |
611 | (goto-char (point-min)) | |
612 | ;; Find the beginning of the file. | |
613 | (when nndoc-file-begin | |
614 | (nndoc-search nndoc-file-begin)) | |
615 | ;; Go through the file. | |
616 | (while (if (and first nndoc-first-article) | |
617 | (nndoc-search nndoc-first-article) | |
618 | (nndoc-article-begin)) | |
619 | (setq first nil) | |
620 | (cond (nndoc-head-begin-function | |
621 | (funcall nndoc-head-begin-function)) | |
622 | (nndoc-head-begin | |
623 | (nndoc-search nndoc-head-begin))) | |
6748645f | 624 | (if (or (eobp) |
eec82323 LMI |
625 | (and nndoc-file-end |
626 | (looking-at nndoc-file-end))) | |
627 | (goto-char (point-max)) | |
628 | (setq head-begin (point)) | |
629 | (nndoc-search (or nndoc-head-end "^$")) | |
630 | (setq head-end (point)) | |
631 | (if nndoc-body-begin-function | |
632 | (funcall nndoc-body-begin-function) | |
633 | (nndoc-search (or nndoc-body-begin "^\n"))) | |
634 | (setq body-begin (point)) | |
635 | (or (and nndoc-body-end-function | |
636 | (funcall nndoc-body-end-function)) | |
637 | (and nndoc-body-end | |
638 | (nndoc-search nndoc-body-end)) | |
639 | (nndoc-article-begin) | |
640 | (progn | |
641 | (goto-char (point-max)) | |
642 | (when nndoc-file-end | |
643 | (and (re-search-backward nndoc-file-end nil t) | |
644 | (beginning-of-line))))) | |
645 | (setq body-end (point)) | |
646 | (push (list (incf i) head-begin head-end body-begin body-end | |
647 | (count-lines body-begin body-end)) | |
648 | nndoc-dissection-alist)))))) | |
649 | ||
650 | (defun nndoc-article-begin () | |
651 | (if nndoc-article-begin-function | |
652 | (funcall nndoc-article-begin-function) | |
653 | (ignore-errors | |
654 | (nndoc-search nndoc-article-begin)))) | |
655 | ||
656 | (defun nndoc-unquote-dashes () | |
657 | "Unquote quoted non-separators in digests." | |
658 | (while (re-search-forward "^- -"nil t) | |
659 | (replace-match "-" t t))) | |
660 | ||
6748645f LMI |
661 | ;; Against compiler warnings. |
662 | (defvar nndoc-mime-split-ordinal) | |
663 | ||
664 | (defun nndoc-dissect-mime-parts () | |
665 | "Go through a MIME composite article and partition it into sub-articles. | |
666 | When a MIME entity contains sub-entities, dissection produces one article for | |
667 | the header of this entity, and one article per sub-entity." | |
668 | (setq nndoc-dissection-alist nil | |
669 | nndoc-mime-split-ordinal 0) | |
670 | (save-excursion | |
671 | (set-buffer nndoc-current-buffer) | |
672 | (message-narrow-to-head) | |
673 | (let ((case-fold-search t) | |
674 | (message-id (message-fetch-field "Message-ID")) | |
675 | (references (message-fetch-field "References"))) | |
676 | (setq nndoc-mime-header (buffer-substring (point-min) (point-max)) | |
677 | nndoc-mime-subject (message-fetch-field "Subject")) | |
678 | (while (string-match "\ | |
679 | ^\\(Subject\\|Message-ID\\|References\\|Lines\\|\ | |
680 | MIME-Version\\|Content-Type\\|Content-Transfer-Encoding\\|\ | |
681 | \\):.*\n\\([ \t].*\n\\)*" | |
682 | nndoc-mime-header) | |
683 | (setq nndoc-mime-header (replace-match "" t t nndoc-mime-header))) | |
684 | (widen) | |
685 | (nndoc-dissect-mime-parts-sub (point-min) (point-max) | |
686 | nil message-id references)))) | |
687 | ||
688 | (defun nndoc-dissect-mime-parts-sub (begin end position message-id references) | |
689 | "Dissect an entity within a composite MIME message. | |
690 | The article, which corresponds to a MIME entity, extends from BEGIN to END. | |
691 | The string POSITION holds a dotted decimal representation of the article | |
692 | position in the hierarchical structure, it is nil for the outer entity. | |
693 | The generated article should use MESSAGE-ID and REFERENCES field values." | |
694 | ;; Note: `case-fold-search' is already `t' from the calling function. | |
695 | (let ((head-begin begin) | |
696 | (body-end end) | |
697 | head-end body-begin type subtype composite comment) | |
698 | (save-excursion | |
699 | ;; Gracefully handle a missing body. | |
700 | (goto-char head-begin) | |
701 | (if (search-forward "\n\n" body-end t) | |
702 | (setq head-end (1- (point)) | |
703 | body-begin (point)) | |
704 | (setq head-end end | |
705 | body-begin end)) | |
706 | ;; Save MIME attributes. | |
707 | (goto-char head-begin) | |
708 | (if (re-search-forward "\ | |
709 | ^Content-Type: *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)" | |
710 | head-end t) | |
711 | (setq type (downcase (match-string 1)) | |
712 | subtype (downcase (match-string 2))) | |
713 | (setq type "text" | |
714 | subtype "plain")) | |
715 | (setq composite (string= type "multipart") | |
716 | comment (concat position | |
717 | (when (and position composite) ".") | |
718 | (when composite "*") | |
719 | (when (or position composite) " ") | |
720 | (cond ((string= subtype "plain") type) | |
721 | ((string= subtype "basic") type) | |
722 | (t subtype)))) | |
723 | ;; Generate dissection information for this entity. | |
724 | (push (list (incf nndoc-mime-split-ordinal) | |
725 | head-begin head-end body-begin body-end | |
726 | (count-lines body-begin body-end) | |
727 | comment message-id references) | |
728 | nndoc-dissection-alist) | |
729 | ;; Recurse for all sub-entities, if any. | |
730 | (goto-char head-begin) | |
731 | (when (re-search-forward | |
732 | (concat "\ | |
733 | ^Content-Type: *multipart/\\([a-z]+\\);\\(.*;\\)*" | |
734 | "[ \t\n]*[ \t]boundary=\"?\\([^\"\n]*[^\" \t\n]\\)") | |
735 | head-end t) | |
736 | (let ((boundary (concat "\n--" (match-string 3) "\\(--\\)?[ \t]*\n")) | |
737 | (part-counter 0) | |
738 | begin end eof-flag) | |
739 | (goto-char head-end) | |
740 | (setq eof-flag (not (re-search-forward boundary body-end t))) | |
741 | (while (not eof-flag) | |
742 | (setq begin (point)) | |
743 | (cond ((re-search-forward boundary body-end t) | |
744 | (or (not (match-string 1)) | |
745 | (string= (match-string 1) "") | |
746 | (setq eof-flag t)) | |
747 | (forward-line -1) | |
748 | (setq end (point)) | |
749 | (forward-line 1)) | |
750 | (t (setq end body-end | |
751 | eof-flag t))) | |
752 | (nndoc-dissect-mime-parts-sub begin end | |
753 | (concat position (when position ".") | |
754 | (format "%d" | |
755 | (incf part-counter))) | |
756 | (nnmail-message-id) | |
757 | message-id))))))) | |
758 | ||
eec82323 LMI |
759 | ;;;###autoload |
760 | (defun nndoc-add-type (definition &optional position) | |
761 | "Add document DEFINITION to the list of nndoc document definitions. | |
762 | If POSITION is nil or `last', the definition will be added | |
763 | as the last checked definition, if t or `first', add as the | |
764 | first definition, and if any other symbol, add after that | |
765 | symbol in the alist." | |
766 | ;; First remove any old instances. | |
6748645f | 767 | (gnus-pull (car definition) nndoc-type-alist) |
eec82323 LMI |
768 | ;; Then enter the new definition in the proper place. |
769 | (cond | |
770 | ((or (null position) (eq position 'last)) | |
771 | (setq nndoc-type-alist (nconc nndoc-type-alist (list definition)))) | |
772 | ((or (eq position t) (eq position 'first)) | |
773 | (push definition nndoc-type-alist)) | |
774 | (t | |
775 | (let ((list (memq (assq position nndoc-type-alist) | |
776 | nndoc-type-alist))) | |
777 | (unless list | |
778 | (error "No such position: %s" position)) | |
779 | (setcdr list (cons definition (cdr list))))))) | |
780 | ||
781 | (provide 'nndoc) | |
782 | ||
783 | ;;; nndoc.el ends here |