1 ;;; nndoc.el --- single file access for Gnus
3 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
4 ;; 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
27 ;; For Outlook mail boxes format, see http://mbx2mbox.sourceforge.net/
37 (eval-when-compile (require 'cl
))
41 (defvoo nndoc-article-type
'guess
43 One of `mbox', `babyl', `digest', `news', `rnews', `mmdf', `forward',
44 `rfc934', `rfc822-forward', `mime-parts', `standard-digest',
45 `slack-digest', `clari-briefs', `nsmail', `outlook', `oe-dbx',
46 `mailman', `exim-bounce', or `guess'.")
48 (defvoo nndoc-post-type
'mail
49 "*Whether the nndoc group is `mail' or `post'.")
51 (defvoo nndoc-open-document-hook
'nnheader-ms-strip-cr
52 "Hook run after opening a document.
53 The default function removes all trailing carriage returns
56 (defvar nndoc-type-alist
58 (article-begin .
"^\^A\^A\^A\^A\n")
59 (body-end .
"^\^A\^A\^A\^A\n"))
62 (head-begin .
"^ ?\n")
66 (subtype digest guess
))
68 (article-begin .
"^From - "))
70 (article-begin .
"^Path:"))
72 (article-begin .
"^#! *rnews +\\([0-9]+\\) *\n")
73 (body-end-function . nndoc-rnews-body-end
))
75 (article-begin-function . nndoc-mbox-article-begin
)
76 (body-end-function . nndoc-mbox-body-end
))
78 (generate-head-function . nndoc-generate-mime-parts-head
)
79 (article-transform-function . nndoc-transform-mime-parts
))
81 (article-begin .
"\^_\^L *\n")
83 (body-begin-function . nndoc-babyl-body-begin
)
84 (head-begin-function . nndoc-babyl-head-begin
))
86 (article-begin .
"^------ This is a copy of the message, including all the headers. ------\n\n")
87 (body-end-function . nndoc-exim-bounce-body-end-function
))
89 (article-begin .
"^--.*\n+")
91 (prepare-body-function . nndoc-unquote-dashes
))
93 (article-begin .
"^--__--__--\n\nMessage:")
94 (body-end .
"^--__--__--$")
95 (prepare-body-function . nndoc-unquote-dashes
))
97 (article-begin .
"^ \\*")
98 (body-end .
"^\t------*[ \t]^*\n^ \\*")
101 (generate-head-function . nndoc-generate-clari-briefs-head
)
102 (article-transform-function . nndoc-transform-clari-briefs
))
105 (first-article .
,(concat "^" (make-string 70 ?-
) "\n *\n+"))
106 (article-begin .
,(concat "^\n" (make-string 30 ?-
) "\n *\n+"))
107 (prepare-body-function . nndoc-unquote-dashes
)
108 (body-end-function . nndoc-digest-body-end
)
110 (body-begin .
"^ *\n")
111 (file-end .
"^End of .*digest.*[0-9].*\n\\*\\*\\|^End of.*Digest *$")
112 (subtype digest guess
))
114 (article-begin .
"^------------------------------*[\n \t]+")
116 (body-end-function . nndoc-digest-body-end
)
117 (body-begin .
"^ ?$")
118 (file-end .
"^End of")
119 (prepare-body-function . nndoc-unquote-dashes
)
120 (subtype digest guess
))
122 (pre-dissection-function . nndoc-decode-content-transfer-encoding
)
123 (article-begin .
"^== [0-9]+ of [0-9]+ ==$")
124 (head-begin .
"^Date:")
126 (body-end-function . nndoc-digest-body-end
)
128 (file-end .
"^==============================================================================$")
129 (prepare-body-function . nndoc-unquote-dashes
)
130 (subtype digest guess
))
132 (article-begin .
"^\\\\\\\\\n")
133 (head-begin .
"^\\(Paper.*:\\|arXiv:\\)")
134 (head-end .
"\\(^\\\\\\\\.*\n\\|-----------------\\)")
136 (body-end .
"\\(-------------------------------------------------\\|%-%-%-%-%-%-%-%-%-%-%-%-%-%-\\|%%--%%--%%--%%--%%--%%--%%--%%--\\|%%%---%%%---%%%---%%%---\\)")
137 (file-end .
"\\(^Title: Recent Seminal\\|%%%---%%%---%%%---%%%---\\)")
138 (generate-head-function . nndoc-generate-lanl-gov-head
)
139 (article-transform-function . nndoc-transform-lanl-gov-announce
)
140 (subtype preprints guess
))
142 (article-begin .
"^\n+")
143 (body-end-function . nndoc-rfc822-forward-body-end-function
)
144 (generate-head-function . nndoc-rfc822-forward-generate-head
)
145 (generate-article-function . nndoc-rfc822-forward-generate-article
))
147 (article-begin-function . nndoc-outlook-article-begin
)
149 (oe-dbx ;; Outlook Express DBX format
150 (dissection-function . nndoc-oe-dbx-dissection
)
151 (generate-head-function . nndoc-oe-dbx-generate-head
)
152 (generate-article-function . nndoc-oe-dbx-generate-article
))
154 (article-begin .
"^-+ \\(Start of \\)?forwarded message.*\n+")
155 (body-end .
"^-+ End \\(of \\)?forwarded message.*$")
156 (prepare-body-function . nndoc-unquote-dashes
))
157 (mail-in-mail ;; Wild guess on mailer daemon's messages or others
158 (article-begin-function . nndoc-mail-in-mail-article-begin
))
169 (defvar nndoc-binary-file-names
".[Dd][Bb][Xx]$"
170 "Regexp for binary nndoc file names.")
173 (defvoo nndoc-file-begin nil
)
174 (defvoo nndoc-first-article nil
)
175 (defvoo nndoc-article-begin nil
)
176 (defvoo nndoc-head-begin nil
)
177 (defvoo nndoc-head-end nil
)
178 (defvoo nndoc-file-end nil
)
179 (defvoo nndoc-body-begin nil
)
180 (defvoo nndoc-body-end-function nil
)
181 (defvoo nndoc-body-begin-function nil
)
182 (defvoo nndoc-head-begin-function nil
)
183 (defvoo nndoc-body-end nil
)
184 ;; nndoc-dissection-alist is a list of sublists. Each sublist holds the
185 ;; following items. ARTICLE acts as the association key and is an ordinal
186 ;; starting at 1. HEAD-BEGIN [0], HEAD-END [1], BODY-BEGIN [2] and BODY-END
187 ;; [3] are positions in the `nndoc' buffer. LINE-COUNT [4] is a count of
188 ;; lines in the body. For MIME dissections only, ARTICLE-INSERT [5] and
189 ;; SUMMARY-INSERT [6] give headers to insert for full article or summary line
190 ;; generation, respectively. Other headers usually follow directly from the
191 ;; buffer. Value `nil' means no insert.
192 (defvoo nndoc-dissection-alist nil
)
193 (defvoo nndoc-prepare-body-function nil
)
194 (defvoo nndoc-generate-head-function nil
)
195 (defvoo nndoc-article-transform-function nil
)
196 (defvoo nndoc-article-begin-function nil
)
197 (defvoo nndoc-generate-article-function nil
)
198 (defvoo nndoc-dissection-function nil
)
199 (defvoo nndoc-pre-dissection-function nil
)
201 (defvoo nndoc-status-string
"")
202 (defvoo nndoc-group-alist nil
)
203 (defvoo nndoc-current-buffer nil
204 "Current nndoc news buffer.")
205 (defvoo nndoc-address nil
)
207 (defconst nndoc-version
"nndoc 1.0"
212 ;;; Interface functions
214 (nnoo-define-basics nndoc
)
216 (deffoo nndoc-retrieve-headers
(articles &optional newsgroup server fetch-old
)
217 (when (nndoc-possibly-change-buffer newsgroup server
)
218 (with-current-buffer nntp-server-buffer
221 (if (stringp (car articles
))
224 (when (setq entry
(cdr (assq (setq article
(pop articles
))
225 nndoc-dissection-alist
)))
226 (insert (format "221 %d Article retrieved.\n" article
))
227 (if nndoc-generate-head-function
228 (funcall nndoc-generate-head-function article
)
229 (insert-buffer-substring
230 nndoc-current-buffer
(car entry
) (nth 1 entry
)))
231 (goto-char (point-max))
232 (unless (eq (char-after (1- (point))) ?
\n)
234 (insert (format "Lines: %d\n" (nth 4 entry
)))
237 (nnheader-fold-continuation-lines)
240 (deffoo nndoc-request-article
(article &optional newsgroup server buffer
)
241 (nndoc-possibly-change-buffer newsgroup server
)
243 (let ((buffer (or buffer nntp-server-buffer
))
244 (entry (cdr (assq article nndoc-dissection-alist
)))
250 ((stringp article
) nil
)
251 (nndoc-generate-article-function
252 (funcall nndoc-generate-article-function article
))
254 (insert-buffer-substring
255 nndoc-current-buffer
(car entry
) (nth 1 entry
))
258 (insert-buffer-substring
259 nndoc-current-buffer
(nth 2 entry
) (nth 3 entry
))
261 (when nndoc-prepare-body-function
262 (funcall nndoc-prepare-body-function
))
263 (when nndoc-article-transform-function
264 (funcall nndoc-article-transform-function article
))
267 (deffoo nndoc-request-group
(group &optional server dont-check info
)
271 ((not (nndoc-possibly-change-buffer group server
))
272 (nnheader-report 'nndoc
"No such file or buffer: %s"
275 (nnheader-report 'nndoc
"Selected group %s" group
)
277 ((zerop (setq number
(length nndoc-dissection-alist
)))
278 (nndoc-close-group group
)
279 (nnheader-report 'nndoc
"No articles in group %s" group
))
281 (nnheader-insert "211 %d %d %d %s\n" number
1 number group
)))))
283 (deffoo nndoc-request-type
(group &optional article
)
284 (cond ((not article
) 'unknown
)
285 (nndoc-post-type nndoc-post-type
)
288 (deffoo nndoc-close-group
(group &optional server
)
289 (nndoc-possibly-change-buffer group server
)
290 (and nndoc-current-buffer
291 (buffer-name nndoc-current-buffer
)
292 (kill-buffer nndoc-current-buffer
))
293 (setq nndoc-group-alist
(delq (assoc group nndoc-group-alist
)
295 (setq nndoc-current-buffer nil
)
296 (nnoo-close-server 'nndoc server
)
297 (setq nndoc-dissection-alist nil
)
300 (deffoo nndoc-request-list
(&optional server
)
303 (deffoo nndoc-request-newgroups
(date &optional server
)
306 (deffoo nndoc-request-list-newsgroups
(&optional server
)
310 ;;; Internal functions.
312 (defun nndoc-possibly-change-buffer (group source
)
315 ;; The current buffer is this group's buffer.
316 ((and nndoc-current-buffer
317 (buffer-name nndoc-current-buffer
)
318 (eq nndoc-current-buffer
319 (setq buf
(cdr (assoc group nndoc-group-alist
))))))
320 ;; We change buffers by taking an old from the group alist.
321 ;; `source' is either a string (a file name) or a buffer object.
323 (setq nndoc-current-buffer buf
))
324 ;; It's a totally new group.
325 ((or (and (bufferp nndoc-address
)
326 (buffer-name nndoc-address
))
327 (and (stringp nndoc-address
)
328 (file-exists-p nndoc-address
)
329 (not (file-directory-p nndoc-address
))))
330 (push (cons group
(setq nndoc-current-buffer
332 (concat " *nndoc " group
"*"))))
334 (setq nndoc-dissection-alist nil
)
335 (with-current-buffer nndoc-current-buffer
337 (if (and (stringp nndoc-address
)
338 (string-match nndoc-binary-file-names nndoc-address
))
339 (let ((coding-system-for-read 'binary
))
340 (mm-insert-file-contents nndoc-address
))
341 (if (stringp nndoc-address
)
342 (nnheader-insert-file-contents nndoc-address
)
343 (insert-buffer-substring nndoc-address
))
344 (run-hooks 'nndoc-open-document-hook
)))))
345 ;; Initialize the nndoc structures according to this new document.
346 (when (and nndoc-current-buffer
347 (not nndoc-dissection-alist
))
348 (with-current-buffer nndoc-current-buffer
350 (if (eq nndoc-article-type
'mime-parts
)
351 (nndoc-dissect-mime-parts)
352 (nndoc-dissect-buffer))))
353 (unless nndoc-current-buffer
354 (nndoc-close-server))
355 ;; Return whether we managed to select a file.
356 nndoc-current-buffer
))
359 ;;; Deciding what document type we have
362 (defun nndoc-set-delims ()
363 "Set the nndoc delimiter variables according to the type of the document."
364 (let ((vars '(nndoc-file-begin
366 nndoc-article-begin-function
367 nndoc-head-begin nndoc-head-end
368 nndoc-file-end nndoc-article-begin
369 nndoc-body-begin nndoc-body-end-function nndoc-body-end
370 nndoc-prepare-body-function nndoc-article-transform-function
371 nndoc-generate-head-function nndoc-body-begin-function
372 nndoc-head-begin-function
373 nndoc-generate-article-function
374 nndoc-dissection-function
375 nndoc-pre-dissection-function
)))
377 (set (pop vars
) nil
)))
379 ;; Guess away until we find the real file type.
380 (while (assq 'guess
(setq defs
(cdr (assq nndoc-article-type
382 (setq nndoc-article-type
(nndoc-guess-type nndoc-article-type
)))
383 ;; Set the nndoc variables.
385 (set (intern (format "nndoc-%s" (caar defs
)))
388 (defun nndoc-guess-type (subtype)
389 (let ((alist nndoc-type-alist
)
390 results result entry
)
391 (while (and (not result
)
392 (setq entry
(pop alist
)))
393 (when (memq subtype
(or (cdr (assq 'subtype entry
)) '(guess)))
394 (goto-char (point-min))
395 ;; Remove blank lines.
396 (while (eq (following-char) ?
\n)
398 (when (numberp (setq result
(funcall (intern
399 (format "nndoc-%s-type-p"
401 (push (cons result entry
) results
)
403 (unless (or result results
)
404 (error "Document is not of any recognized type"))
407 (cadar (last (sort results
'car-less-than-car
))))))
410 ;;; Built-in type predicates and functions
413 (defun nndoc-mbox-type-p ()
414 (when (looking-at message-unix-mail-delimiter
)
417 (defun nndoc-mbox-article-begin ()
418 (when (re-search-forward (concat "^" message-unix-mail-delimiter
) nil t
)
419 (goto-char (match-beginning 0))))
421 (defun nndoc-mbox-body-end ()
426 (and (re-search-backward
427 (concat "^" message-unix-mail-delimiter
) nil t
)
429 (search-forward "\n\n" beg t
)
431 "^Content-Length:[ \t]*\\([0-9]+\\) *$" end t
)
432 (setq len
(string-to-number (match-string 1)))
433 (search-forward "\n\n" beg t
)
434 (unless (= (setq len
(+ (point) len
)) (point-max))
435 (and (< len
(point-max))
437 (looking-at message-unix-mail-delimiter
)))))
440 (defun nndoc-mmdf-type-p ()
441 (when (looking-at "\^A\^A\^A\^A$")
444 (defun nndoc-news-type-p ()
445 (when (looking-at "^Path:.*\n")
448 (defun nndoc-rnews-type-p ()
449 (when (looking-at "#! *rnews")
452 (defun nndoc-rnews-body-end ()
453 (and (re-search-backward nndoc-article-begin nil t
)
455 (goto-char (+ (point) (string-to-number (match-string 1))))))
457 (defun nndoc-google-type-p ()
458 (when (re-search-forward "^=3D=3D 1 of [0-9]+ =3D=3D$" nil t
)
461 (defun nndoc-decode-content-transfer-encoding ()
464 (message-narrow-to-head)
465 (message-fetch-field "content-transfer-encoding"))))
467 (search-forward "\n\n" nil t
))
469 (narrow-to-region (point) (point-max))
470 (mm-decode-content-transfer-encoding
471 (intern (downcase (mail-header-strip encoding
))))))))
473 (defun nndoc-babyl-type-p ()
474 (when (re-search-forward "\^_\^L *\n" nil t
)
477 (defun nndoc-babyl-body-begin ()
478 (re-search-forward "^\n" nil t
)
479 (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*")
480 (let ((next (or (save-excursion
481 (re-search-forward nndoc-article-begin nil t
))
483 (unless (re-search-forward "^\n" next t
)
487 (forward-line -
1)))))
489 (defun nndoc-babyl-head-begin ()
490 (when (re-search-forward "^[0-9].*\n" nil t
)
491 (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*")
495 (defun nndoc-forward-type-p ()
496 (when (and (re-search-forward "^-+ \\(Start of \\)?forwarded message.*\n+"
498 (looking-at "[\r\n]*[a-zA-Z][a-zA-Z0-9-]*:\\|^>?From "))
501 (defun nndoc-rfc934-type-p ()
502 (when (and (re-search-forward "^-+ Start of forwarded.*\n+" nil t
)
503 (not (re-search-forward "^Subject:.*digest" nil t
))
504 (not (re-search-backward "^From:" nil t
2))
505 (not (re-search-forward "^From:" nil t
2)))
508 (defun nndoc-mailman-type-p ()
509 (when (re-search-forward "^--__--__--\n+" nil t
)
512 (defun nndoc-rfc822-forward-type-p ()
514 (message-narrow-to-head)
515 (when (re-search-forward "^Content-Type: *message/rfc822" nil t
)
518 (defun nndoc-rfc822-forward-body-end-function ()
519 (goto-char (point-max)))
521 (defun nndoc-rfc822-forward-generate-article (article &optional head
)
522 (let ((entry (cdr (assq article nndoc-dissection-alist
)))
525 (with-current-buffer nndoc-current-buffer
527 (message-narrow-to-head)
528 (setq encoding
(message-fetch-field "content-transfer-encoding"))))
529 (insert-buffer-substring nndoc-current-buffer
(car entry
) (nth 3 entry
))
532 (narrow-to-region begin
(point-max))
533 (mm-decode-content-transfer-encoding
534 (intern (downcase (mail-header-strip encoding
))))))
537 (when (search-forward "\n\n" nil t
)
538 (delete-region (1- (point)) (point-max)))))
541 (defun nndoc-rfc822-forward-generate-head (article)
542 (nndoc-rfc822-forward-generate-article article
'head
))
544 (defun nndoc-mime-parts-type-p ()
545 (let ((case-fold-search t
)
546 (limit (search-forward "\n\n" nil t
)))
547 (goto-char (point-min))
551 ^Content-Type:[ \t]*multipart/[a-z]+ *; *\\(\\(\n[ \t]\\)?.*;\\)*"
552 "\\(\n[ \t]\\)?[ \t]*boundary=\"?[^\"\n]*[^\" \t\n]")
556 (defun nndoc-transform-mime-parts (article)
557 (let* ((entry (cdr (assq article nndoc-dissection-alist
)))
558 (headers (nth 5 entry
)))
560 (goto-char (point-min))
563 (defun nndoc-generate-mime-parts-head (article)
564 (let* ((entry (cdr (assq article nndoc-dissection-alist
)))
565 (headers (nth 6 entry
)))
567 (narrow-to-region (point) (point))
568 (insert-buffer-substring
569 nndoc-current-buffer
(car entry
) (nth 1 entry
))
570 (goto-char (point-max)))
574 (defun nndoc-clari-briefs-type-p ()
575 (when (let ((case-fold-search nil
))
576 (re-search-forward "^\t[^a-z]+ ([^a-z]+) --" nil t
))
579 (defun nndoc-transform-clari-briefs (article)
580 (goto-char (point-min))
581 (when (looking-at " *\\*\\(.*\\)\n")
582 (replace-match "" t t
))
583 (nndoc-generate-clari-briefs-head article
))
585 (defun nndoc-generate-clari-briefs-head (article)
586 (let ((entry (cdr (assq article nndoc-dissection-alist
)))
588 (with-current-buffer nndoc-current-buffer
590 (narrow-to-region (car entry
) (nth 3 entry
))
591 (goto-char (point-min))
592 (when (looking-at " *\\*\\(.*\\)$")
593 (setq subject
(match-string 1))
594 (when (string-match "[ \t]+$" subject
)
595 (setq subject
(substring subject
0 (match-beginning 0)))))
597 (let ((case-fold-search nil
))
599 "^\t\\([^a-z]+\\(,[^(]+\\)? ([^a-z]+)\\) --" nil t
))
600 (setq from
(match-string 1)))))
601 (insert "From: " "clari@clari.net (" (or from
"unknown") ")"
602 "\nSubject: " (or subject
"(no subject)") "\n")))
604 (defun nndoc-exim-bounce-type-p ()
605 (and (re-search-forward "^------ This is a copy of the message, including all the headers. ------" nil t
)
608 (defun nndoc-exim-bounce-body-end-function ()
609 (goto-char (point-max)))
612 (defun nndoc-mime-digest-type-p ()
613 (let ((case-fold-search t
)
614 boundary-id b-delimiter entry
)
617 (concat "^Content-Type: *multipart/digest;[ \t\n]*[ \t]"
618 "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)")
621 (setq boundary-id
(match-string 1)
622 b-delimiter
(concat "\n--" boundary-id
"[ \t]*$"))
623 (setq entry
(assq 'mime-digest nndoc-type-alist
))
626 (cons 'head-begin
"^ ?\n")
627 (cons 'head-end
"^ ?$")
628 (cons 'body-begin
"^ ?\n")
629 (cons 'article-begin b-delimiter
)
630 (cons 'body-end-function
'nndoc-digest-body-end
)
631 (cons 'file-end
(concat "^--" boundary-id
"--[ \t]*$"))))
634 (defun nndoc-standard-digest-type-p ()
635 (when (and (re-search-forward (concat "^" (make-string 70 ?-
) "\n\n") nil t
)
637 (concat "\n\n" (make-string 30 ?-
) "\n\n") nil t
))
640 (defun nndoc-digest-body-end ()
641 (and (re-search-forward nndoc-article-begin nil t
)
642 (goto-char (match-beginning 0))))
644 (defun nndoc-slack-digest-type-p ()
647 (defun nndoc-lanl-gov-announce-type-p ()
648 (when (let ((case-fold-search nil
))
649 (re-search-forward "^\\\\\\\\\n\\(Paper\\( (\\*cross-listing\\*)\\)?: [a-zA-Z-\\.]+/[0-9]+\\|arXiv:\\)" nil t
))
652 (defun nndoc-transform-lanl-gov-announce (article)
653 (let ((case-fold-search nil
))
654 (goto-char (point-max))
655 (when (re-search-backward "^\\\\\\\\ +( *\\([^ ]*\\) , *\\([^ ]*\\))" nil t
)
656 (replace-match "\n\nGet it at \\1 (\\2)" t nil
))
657 (goto-char (point-min))
658 (while (re-search-forward "^\\\\\\\\$" nil t
)
659 (replace-match "" t nil
))
660 (goto-char (point-min))
661 (when (re-search-forward "^replaced with revised version +\\(.*[^ ]\\) +" nil t
)
662 (replace-match "Date: \\1 (revised) " t nil
))
663 (goto-char (point-min))
664 (unless (re-search-forward "^From" nil t
)
665 (goto-char (point-min))
666 (when (re-search-forward "^Authors?: \\(.*\\)" nil t
)
667 (goto-char (point-min))
668 (insert "From: " (match-string 1) "\n")))
669 (when (re-search-forward "^arXiv:" nil t
)
670 (replace-match "Paper: arXiv:" t nil
))))
672 (defun nndoc-generate-lanl-gov-head (article)
673 (let ((entry (cdr (assq article nndoc-dissection-alist
)))
674 (from "<no address given>")
676 (with-current-buffer nndoc-current-buffer
678 (narrow-to-region (car entry
) (nth 1 entry
))
679 (goto-char (point-min))
680 (when (looking-at "^\\(Paper.*: \\|arXiv:\\)\\([0-9a-zA-Z-\\./]+\\)")
681 (setq subject
(concat " (" (match-string 2) ")"))
682 (when (re-search-forward "^From: \\(.*\\)" nil t
)
683 (setq from
(concat "<"
684 (cadr (funcall gnus-extract-address-components
685 (match-string 1))) ">")))
686 (if (re-search-forward "^Date: +\\([^(]*\\)" nil t
)
687 (setq date
(match-string 1))
688 (when (re-search-forward "^replaced with revised version +\\([^(]*\\)" nil t
)
689 (setq date
(match-string 1))))
690 (when (re-search-forward "^Title: \\([^\f]*\\)\nAuthors?: \\(.*\\)"
692 (setq subject
(concat (match-string 1) subject
))
693 (setq from
(concat (match-string 2) " " from
))))))
694 (while (and from
(string-match "(\[^)\]*)" from
))
695 (setq from
(replace-match "" t t from
)))
696 (insert "From: " (or from
"unknown")
697 "\nSubject: " (or subject
"(no subject)") "\n")
698 (if date
(insert "Date: " date
))))
700 (defun nndoc-nsmail-type-p ()
701 (when (looking-at "From - ")
704 (defun nndoc-outlook-article-begin ()
705 (prog1 (re-search-forward "From:\\|Received:" nil t
)
706 (goto-char (match-beginning 0))))
708 (defun nndoc-outlook-type-p ()
709 ;; FIXME: Is JMF the magic of outlook mailbox? -- ShengHuo.
712 (defun nndoc-oe-dbx-type-p ()
713 (looking-at (mm-string-to-multibyte "\317\255\022\376")))
715 (defun nndoc-read-little-endian ()
716 (+ (prog1 (char-after) (forward-char 1))
717 (lsh (prog1 (char-after) (forward-char 1)) 8)
718 (lsh (prog1 (char-after) (forward-char 1)) 16)
719 (lsh (prog1 (char-after) (forward-char 1)) 24)))
721 (defun nndoc-oe-dbx-decode-block ()
723 (nndoc-read-little-endian) ;; this address
724 (nndoc-read-little-endian) ;; next address offset
725 (nndoc-read-little-endian) ;; blocksize
726 (nndoc-read-little-endian))) ;; next address
728 (defun nndoc-oe-dbx-dissection ()
729 (let ((i 0) blk p tp
)
730 (goto-char 60117) ;; 0x0000EAD4+1
733 (setq blk
(nndoc-oe-dbx-decode-block)))
734 (while (and blk
(> (car blk
) 0) (or (zerop (nth 3 blk
))
736 (push (list (incf i
) p nil nil nil
0) nndoc-dissection-alist
)
737 (while (and (> (car blk
) 0) (> (nth 3 blk
) p
))
738 (goto-char (1+ (nth 3 blk
)))
739 (setq blk
(nndoc-oe-dbx-decode-block)))
740 (if (or (<= (car blk
) p
)
742 (not (zerop (nth 3 blk
))))
744 (setq tp
(+ (car blk
) (nth 1 blk
) 17))
745 (if (or (<= tp p
) (>= tp
(point-max)))
749 blk
(nndoc-oe-dbx-decode-block)))))))
751 (defun nndoc-oe-dbx-generate-article (article &optional head
)
752 (let ((entry (cdr (assq article nndoc-dissection-alist
)))
753 (cur (current-buffer))
756 (with-current-buffer nndoc-current-buffer
758 (while (> p
(point-min))
760 (setq blk
(nndoc-oe-dbx-decode-block))
762 (with-current-buffer cur
763 (insert-buffer-substring nndoc-current-buffer p
(+ p
(nth 2 blk
))))
764 (setq p
(1+ (nth 3 blk
)))))
766 (while (re-search-forward "\r$" nil t
)
770 (when (search-forward "\n\n" nil t
)
771 (setcar (cddddr entry
) (count-lines (point) (point-max)))
772 (delete-region (1- (point)) (point-max))))
775 (defun nndoc-oe-dbx-generate-head (article)
776 (nndoc-oe-dbx-generate-article article
'head
))
778 (defun nndoc-mail-in-mail-type-p ()
782 (while (re-search-forward "\n\n[-A-Za-z0-9]+:" nil t
)
785 (while (looking-at "[ \t]\\|[-A-Za-z0-9]+:")
786 (if (looking-at "[-A-Za-z0-9]+:")
787 (setq found
(1+ found
)))
789 (if (and (> found
0) (looking-at "\n"))
793 (defun nndoc-mail-in-mail-article-begin ()
796 (while (re-search-forward "\n\n\\([-A-Za-z0-9]+:\\)" nil t
)
798 (setq point
(match-beginning 1))
800 (while (looking-at "[ \t]\\|[-A-Za-z0-9]+:")
801 (if (looking-at "[-A-Za-z0-9]+:")
802 (setq found
(1+ found
)))
804 (if (and (> found
0) (looking-at "\n"))
809 (deffoo nndoc-request-accept-article
(group &optional server last
)
813 ;;; Functions for dissecting the documents
816 (defun nndoc-search (regexp)
818 (re-search-forward regexp nil t
)
819 (beginning-of-line)))
821 (defun nndoc-dissect-buffer ()
822 "Go through the document and partition it into heads/bodies/articles."
825 art-begin head-begin head-end body-begin body-end
)
826 (setq nndoc-dissection-alist nil
)
827 (with-current-buffer nndoc-current-buffer
828 (goto-char (point-min))
829 ;; Remove blank lines.
830 (while (eq (following-char) ?
\n)
832 (when nndoc-pre-dissection-function
834 (funcall nndoc-pre-dissection-function
)))
835 (if nndoc-dissection-function
836 (funcall nndoc-dissection-function
)
837 ;; Find the beginning of the file.
838 (when nndoc-file-begin
839 (nndoc-search nndoc-file-begin
))
840 ;; Go through the file.
841 (while (if (and first nndoc-first-article
)
842 (nndoc-search nndoc-first-article
)
844 (goto-char art-begin
)
845 (nndoc-article-begin)))
848 (cond (nndoc-head-begin-function
849 (funcall nndoc-head-begin-function
))
851 (nndoc-search nndoc-head-begin
)))
854 (looking-at nndoc-file-end
)))
855 (goto-char (point-max))
856 (setq head-begin
(point))
857 (nndoc-search (or nndoc-head-end
"^$"))
858 (setq head-end
(point))
859 (if nndoc-body-begin-function
860 (funcall nndoc-body-begin-function
)
861 (nndoc-search (or nndoc-body-begin
"^\n")))
862 (setq body-begin
(point))
863 (or (and nndoc-body-end-function
864 (funcall nndoc-body-end-function
))
866 (nndoc-search nndoc-body-end
))
867 (and (nndoc-article-begin)
868 (setq art-begin
(point)))
870 (goto-char (point-max))
872 (and (re-search-backward nndoc-file-end nil t
)
873 (beginning-of-line)))))
874 (setq body-end
(point))
875 (push (list (incf i
) head-begin head-end body-begin body-end
876 (count-lines body-begin body-end
))
877 nndoc-dissection-alist
)))))))
879 (defun nndoc-article-begin ()
880 (if nndoc-article-begin-function
881 (funcall nndoc-article-begin-function
)
883 (nndoc-search nndoc-article-begin
))))
885 (defun nndoc-unquote-dashes ()
886 "Unquote quoted non-separators in digests."
887 (while (re-search-forward "^- -"nil t
)
888 (replace-match "-" t t
)))
890 ;; Against compiler warnings.
891 (defvar nndoc-mime-split-ordinal
)
893 (defun nndoc-dissect-mime-parts ()
894 "Go through a MIME composite article and partition it into sub-articles.
895 When a MIME entity contains sub-entities, dissection produces one article for
896 the header of this entity, and one article per sub-entity."
897 (setq nndoc-dissection-alist nil
898 nndoc-mime-split-ordinal
0)
899 (with-current-buffer nndoc-current-buffer
900 (nndoc-dissect-mime-parts-sub (point-min) (point-max) nil nil nil
)))
902 (defun nndoc-dissect-mime-parts-sub (head-begin body-end article-insert
904 "Dissect an entity, within a composite MIME message.
905 The complete message or MIME entity extends from HEAD-BEGIN to BODY-END.
906 ARTICLE-INSERT should be added at beginning for generating a full article.
907 The string POSITION holds a dotted decimal representation of the article
908 position in the hierarchical structure, it is nil for the outer entity.
909 PARENT is the message-ID of the parent summary line, or nil for none."
910 (let ((case-fold-search t
)
911 (message-id (nnmail-message-id))
912 head-end body-begin summary-insert message-rfc822 multipart-any
913 subject content-type type subtype boundary-regexp
)
914 ;; Gracefully handle a missing body.
915 (goto-char head-begin
)
916 (if (or (and (eq (char-after) ?
\n) (or (forward-char 1) t
))
917 (search-forward "\n\n" body-end t
))
918 (setq head-end
(1- (point))
920 (setq head-end body-end
921 body-begin body-end
))
922 (narrow-to-region head-begin head-end
)
923 ;; Save MIME attributes.
924 (goto-char head-begin
)
925 (setq content-type
(message-fetch-field "Content-Type"))
928 "^ *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)" content-type
)
929 (setq type
(downcase (match-string 1 content-type
))
930 subtype
(downcase (match-string 2 content-type
))
931 message-rfc822
(and (string= type
"message")
932 (string= subtype
"rfc822"))
933 multipart-any
(string= type
"multipart")))
934 (when (string-match ";[ \t\n]*name=\\([^ \t\n;]+\\)" content-type
)
935 (setq subject
(match-string 1 content-type
)))
936 (when (string-match "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)" content-type
)
937 (setq boundary-regexp
(concat "^--"
939 (match-string 1 content-type
))
940 "\\(--\\)?[ \t]*\n"))))
942 (when (or multipart-any
(not article-insert
))
943 (setq subject
(message-fetch-field "Subject"))))
947 ;; Prepare the article and summary inserts.
948 (unless article-insert
949 (setq article-insert
(buffer-string)
950 head-end head-begin
))
952 (unless (string-match "MIME-Version:" article-insert
)
954 (concat article-insert
"MIME-Version: 1.0\n")))
955 (setq summary-insert article-insert
)
956 ;; - summary Subject.
958 (let ((line (concat "Subject: <" position
959 (and position multipart-any
".")
960 (and multipart-any
"*")
961 (and (or position multipart-any
) " ")
962 (cond ((string= subtype
"plain") type
)
963 ((string= subtype
"basic") type
)
969 (if (string-match "Subject:.*\n\\([ \t].*\n\\)*" summary-insert
)
970 (replace-match line t t summary-insert
)
971 (concat summary-insert line
))))
972 ;; - summary Message-ID.
974 (let ((line (concat "Message-ID: " message-id
"\n")))
975 (if (string-match "Message-ID:.*\n\\([ \t].*\n\\)*" summary-insert
)
976 (replace-match line t t summary-insert
)
977 (concat summary-insert line
))))
978 ;; - summary References.
981 (let ((line (concat "References: " parent
"\n")))
982 (if (string-match "References:.*\n\\([ \t].*\n\\)*"
984 (replace-match line t t summary-insert
)
985 (concat summary-insert line
)))))
986 ;; Generate dissection information for this entity.
987 (push (list (incf nndoc-mime-split-ordinal
)
988 head-begin head-end body-begin body-end
989 (count-lines body-begin body-end
)
990 article-insert summary-insert
)
991 nndoc-dissection-alist
)
992 ;; Recurse for all sub-entities, if any.
997 (nndoc-dissect-mime-parts-sub body-begin body-end nil
998 position message-id
)))
999 ((and multipart-any boundary-regexp
)
1000 (let ((part-counter 0)
1001 part-begin part-end eof-flag
)
1002 (while (string-match "\
1003 ^\\(Lines\\|Content-\\(Type\\|Transfer-Encoding\\|Disposition\\)\\):.*\n\\([ \t].*\n\\)*"
1005 (setq article-insert
(replace-match "" t t article-insert
)))
1006 (let ((case-fold-search nil
))
1007 (goto-char body-begin
)
1008 (setq eof-flag
(not (re-search-forward boundary-regexp body-end t
)))
1009 (while (not eof-flag
)
1010 (setq part-begin
(point))
1011 (cond ((re-search-forward boundary-regexp body-end t
)
1012 (or (not (match-string 1))
1013 (string= (match-string 1) "")
1016 (setq part-end
(point))
1018 (t (setq part-end body-end
1021 (nndoc-dissect-mime-parts-sub
1022 part-begin part-end article-insert
1025 (format "%d" (incf part-counter
)))
1029 (defun nndoc-add-type (definition &optional position
)
1030 "Add document DEFINITION to the list of nndoc document definitions.
1031 If POSITION is nil or `last', the definition will be added
1032 as the last checked definition, if t or `first', add as the
1033 first definition, and if any other symbol, add after that
1034 symbol in the alist."
1035 ;; First remove any old instances.
1036 (gnus-pull (car definition
) nndoc-type-alist
)
1037 ;; Then enter the new definition in the proper place.
1039 ((or (null position
) (eq position
'last
))
1040 (setq nndoc-type-alist
(nconc nndoc-type-alist
(list definition
))))
1041 ((or (eq position t
) (eq position
'first
))
1042 (push definition nndoc-type-alist
))
1044 (let ((list (memq (assq position nndoc-type-alist
)
1047 (error "No such position: %s" position
))
1048 (setcdr list
(cons definition
(cdr list
)))))))
1052 ;;; nndoc.el ends here