1 ;;; nndoc.el --- single file access for Gnus
2 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
3 ;; Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
36 (eval-when-compile (require 'cl
))
40 (defvoo nndoc-article-type
'guess
42 One of `mbox', `babyl', `digest', `news', `rnews', `mmdf', `forward',
43 `rfc934', `rfc822-forward', `mime-parts', `standard-digest',
44 `slack-digest', `clari-briefs', `nsmail' or `guess'.")
46 (defvoo nndoc-post-type
'mail
47 "*Whether the nndoc group is `mail' or `post'.")
49 (defvoo nndoc-open-document-hook
'nnheader-ms-strip-cr
50 "Hook run after opening a document.
51 The default function removes all trailing carriage returns
54 (defvar nndoc-type-alist
56 (article-begin .
"^\^A\^A\^A\^A\n")
57 (body-end .
"^\^A\^A\^A\^A\n"))
59 (article-begin .
"^From - "))
61 (article-begin .
"^Path:"))
63 (article-begin .
"^#! *rnews +\\([0-9]+\\) *\n")
64 (body-end-function . nndoc-rnews-body-end
))
66 (article-begin-function . nndoc-mbox-article-begin
)
67 (body-end-function . nndoc-mbox-body-end
))
69 (article-begin .
"\^_\^L *\n")
71 (body-begin-function . nndoc-babyl-body-begin
)
72 (head-begin-function . nndoc-babyl-head-begin
))
74 (article-begin .
"^-+ \\(Start of \\)?forwarded message.*\n+")
75 (body-end .
"^-+ End \\(of \\)?forwarded message.*$")
76 (prepare-body-function . nndoc-unquote-dashes
))
78 (article-begin .
"^--.*\n+")
80 (prepare-body-function . nndoc-unquote-dashes
))
82 (article-begin .
"^ \\*")
83 (body-end .
"^\t------*[ \t]^*\n^ \\*")
86 (generate-head-function . nndoc-generate-clari-briefs-head
)
87 (article-transform-function . nndoc-transform-clari-briefs
))
90 (head-begin .
"^ ?\n")
94 (subtype digest guess
))
96 (generate-head-function . nndoc-generate-mime-parts-head
)
97 (article-transform-function . nndoc-transform-mime-parts
))
99 (first-article .
,(concat "^" (make-string 70 ?-
) "\n *\n+"))
100 (article-begin .
,(concat "^\n" (make-string 30 ?-
) "\n *\n+"))
101 (prepare-body-function . nndoc-unquote-dashes
)
102 (body-end-function . nndoc-digest-body-end
)
104 (body-begin .
"^ *\n")
105 (file-end .
"^End of .*digest.*[0-9].*\n\\*\\*\\|^End of.*Digest *$")
106 (subtype digest guess
))
108 (article-begin .
"^------------------------------*[\n \t]+")
110 (body-end-function . nndoc-digest-body-end
)
111 (body-begin .
"^ ?$")
112 (file-end .
"^End of")
113 (prepare-body-function . nndoc-unquote-dashes
)
114 (subtype digest guess
))
116 (article-begin .
"^\\\\\\\\\n")
117 (head-begin .
"^Paper.*:")
118 (head-end .
"\\(^\\\\\\\\.*\n\\|-----------------\\)")
120 (body-end .
"-------------------------------------------------")
121 (file-end .
"^Title: Recent Seminal")
122 (generate-head-function . nndoc-generate-lanl-gov-head
)
123 (article-transform-function . nndoc-transform-lanl-gov-announce
)
124 (subtype preprints guess
))
126 (article-begin .
"^\n")
127 (body-end-function . nndoc-rfc822-forward-body-end-function
))
129 (article-begin-function . nndoc-outlook-article-begin
)
142 (defvoo nndoc-file-begin nil
)
143 (defvoo nndoc-first-article nil
)
144 (defvoo nndoc-article-begin nil
)
145 (defvoo nndoc-head-begin nil
)
146 (defvoo nndoc-head-end nil
)
147 (defvoo nndoc-file-end nil
)
148 (defvoo nndoc-body-begin nil
)
149 (defvoo nndoc-body-end-function nil
)
150 (defvoo nndoc-body-begin-function nil
)
151 (defvoo nndoc-head-begin-function nil
)
152 (defvoo nndoc-body-end nil
)
153 ;; nndoc-dissection-alist is a list of sublists. Each sublist holds the
154 ;; following items. ARTICLE acts as the association key and is an ordinal
155 ;; starting at 1. HEAD-BEGIN [0], HEAD-END [1], BODY-BEGIN [2] and BODY-END
156 ;; [3] are positions in the `nndoc' buffer. LINE-COUNT [4] is a count of
157 ;; lines in the body. For MIME dissections only, ARTICLE-INSERT [5] and
158 ;; SUMMARY-INSERT [6] give headers to insert for full article or summary line
159 ;; generation, respectively. Other headers usually follow directly from the
160 ;; buffer. Value `nil' means no insert.
161 (defvoo nndoc-dissection-alist nil
)
162 (defvoo nndoc-prepare-body-function nil
)
163 (defvoo nndoc-generate-head-function nil
)
164 (defvoo nndoc-article-transform-function nil
)
165 (defvoo nndoc-article-begin-function nil
)
167 (defvoo nndoc-status-string
"")
168 (defvoo nndoc-group-alist nil
)
169 (defvoo nndoc-current-buffer nil
170 "Current nndoc news buffer.")
171 (defvoo nndoc-address nil
)
173 (defconst nndoc-version
"nndoc 1.0"
178 ;;; Interface functions
180 (nnoo-define-basics nndoc
)
182 (deffoo nndoc-retrieve-headers
(articles &optional newsgroup server fetch-old
)
183 (when (nndoc-possibly-change-buffer newsgroup server
)
185 (set-buffer nntp-server-buffer
)
188 (if (stringp (car articles
))
191 (when (setq entry
(cdr (assq (setq article
(pop articles
))
192 nndoc-dissection-alist
)))
193 (insert (format "221 %d Article retrieved.\n" article
))
194 (if nndoc-generate-head-function
195 (funcall nndoc-generate-head-function article
)
196 (insert-buffer-substring
197 nndoc-current-buffer
(car entry
) (nth 1 entry
)))
198 (goto-char (point-max))
199 (unless (eq (char-after (1- (point))) ?
\n)
201 (insert (format "Lines: %d\n" (nth 4 entry
)))
204 (nnheader-fold-continuation-lines)
207 (deffoo nndoc-request-article
(article &optional newsgroup server buffer
)
208 (nndoc-possibly-change-buffer newsgroup server
)
210 (let ((buffer (or buffer nntp-server-buffer
))
211 (entry (cdr (assq article nndoc-dissection-alist
)))
216 (if (stringp article
)
218 (insert-buffer-substring
219 nndoc-current-buffer
(car entry
) (nth 1 entry
))
222 (insert-buffer-substring
223 nndoc-current-buffer
(nth 2 entry
) (nth 3 entry
))
225 (when nndoc-prepare-body-function
226 (funcall nndoc-prepare-body-function
))
227 (when nndoc-article-transform-function
228 (funcall nndoc-article-transform-function article
))
231 (deffoo nndoc-request-group
(group &optional server dont-check
)
235 ((not (nndoc-possibly-change-buffer group server
))
236 (nnheader-report 'nndoc
"No such file or buffer: %s"
239 (nnheader-report 'nndoc
"Selected group %s" group
)
241 ((zerop (setq number
(length nndoc-dissection-alist
)))
242 (nndoc-close-group group
)
243 (nnheader-report 'nndoc
"No articles in group %s" group
))
245 (nnheader-insert "211 %d %d %d %s\n" number
1 number group
)))))
247 (deffoo nndoc-request-type
(group &optional article
)
248 (cond ((not article
) 'unknown
)
249 (nndoc-post-type nndoc-post-type
)
252 (deffoo nndoc-close-group
(group &optional server
)
253 (nndoc-possibly-change-buffer group server
)
254 (and nndoc-current-buffer
255 (buffer-name nndoc-current-buffer
)
256 (kill-buffer nndoc-current-buffer
))
257 (setq nndoc-group-alist
(delq (assoc group nndoc-group-alist
)
259 (setq nndoc-current-buffer nil
)
260 (nnoo-close-server 'nndoc server
)
261 (setq nndoc-dissection-alist nil
)
264 (deffoo nndoc-request-list
(&optional server
)
267 (deffoo nndoc-request-newgroups
(date &optional server
)
270 (deffoo nndoc-request-list-newsgroups
(&optional server
)
274 ;;; Internal functions.
276 (defun nndoc-possibly-change-buffer (group source
)
279 ;; The current buffer is this group's buffer.
280 ((and nndoc-current-buffer
281 (buffer-name nndoc-current-buffer
)
282 (eq nndoc-current-buffer
283 (setq buf
(cdr (assoc group nndoc-group-alist
))))))
284 ;; We change buffers by taking an old from the group alist.
285 ;; `source' is either a string (a file name) or a buffer object.
287 (setq nndoc-current-buffer buf
))
288 ;; It's a totally new group.
289 ((or (and (bufferp nndoc-address
)
290 (buffer-name nndoc-address
))
291 (and (stringp nndoc-address
)
292 (file-exists-p nndoc-address
)
293 (not (file-directory-p nndoc-address
))))
294 (push (cons group
(setq nndoc-current-buffer
296 (concat " *nndoc " group
"*"))))
298 (setq nndoc-dissection-alist nil
)
300 (set-buffer nndoc-current-buffer
)
302 (if (stringp nndoc-address
)
303 (nnheader-insert-file-contents nndoc-address
)
304 (insert-buffer-substring nndoc-address
))
305 (run-hooks 'nndoc-open-document-hook
))))
306 ;; Initialize the nndoc structures according to this new document.
307 (when (and nndoc-current-buffer
308 (not nndoc-dissection-alist
))
310 (set-buffer nndoc-current-buffer
)
312 (if (eq nndoc-article-type
'mime-parts
)
313 (nndoc-dissect-mime-parts)
314 (nndoc-dissect-buffer))))
315 (unless nndoc-current-buffer
316 (nndoc-close-server))
317 ;; Return whether we managed to select a file.
318 nndoc-current-buffer
))
321 ;;; Deciding what document type we have
324 (defun nndoc-set-delims ()
325 "Set the nndoc delimiter variables according to the type of the document."
326 (let ((vars '(nndoc-file-begin
328 nndoc-article-begin-function
329 nndoc-head-begin nndoc-head-end
330 nndoc-file-end nndoc-article-begin
331 nndoc-body-begin nndoc-body-end-function nndoc-body-end
332 nndoc-prepare-body-function nndoc-article-transform-function
333 nndoc-generate-head-function nndoc-body-begin-function
334 nndoc-head-begin-function
)))
336 (set (pop vars
) nil
)))
338 ;; Guess away until we find the real file type.
339 (while (assq 'guess
(setq defs
(cdr (assq nndoc-article-type
341 (setq nndoc-article-type
(nndoc-guess-type nndoc-article-type
)))
342 ;; Set the nndoc variables.
344 (set (intern (format "nndoc-%s" (caar defs
)))
347 (defun nndoc-guess-type (subtype)
348 (let ((alist nndoc-type-alist
)
349 results result entry
)
350 (while (and (not result
)
351 (setq entry
(pop alist
)))
352 (when (memq subtype
(or (cdr (assq 'subtype entry
)) '(guess)))
353 (goto-char (point-min))
354 ;; Remove blank lines.
355 (while (eq (following-char) ?
\n)
357 (when (numberp (setq result
(funcall (intern
358 (format "nndoc-%s-type-p"
360 (push (cons result entry
) results
)
362 (unless (or result results
)
363 (error "Document is not of any recognized type"))
366 (cadar (sort results
'car-less-than-car
)))))
369 ;;; Built-in type predicates and functions
372 (defun nndoc-mbox-type-p ()
373 (when (looking-at message-unix-mail-delimiter
)
376 (defun nndoc-mbox-article-begin ()
377 (when (re-search-forward (concat "^" message-unix-mail-delimiter
) nil t
)
378 (goto-char (match-beginning 0))))
380 (defun nndoc-mbox-body-end ()
385 (and (re-search-backward
386 (concat "^" message-unix-mail-delimiter
) nil t
)
388 (search-forward "\n\n" beg t
)
390 "^Content-Length:[ \t]*\\([0-9]+\\) *$" end t
)
391 (setq len
(string-to-int (match-string 1)))
392 (search-forward "\n\n" beg t
)
393 (unless (= (setq len
(+ (point) len
)) (point-max))
394 (and (< len
(point-max))
396 (looking-at message-unix-mail-delimiter
)))))
399 (defun nndoc-mmdf-type-p ()
400 (when (looking-at "\^A\^A\^A\^A$")
403 (defun nndoc-news-type-p ()
404 (when (looking-at "^Path:.*\n")
407 (defun nndoc-rnews-type-p ()
408 (when (looking-at "#! *rnews")
411 (defun nndoc-rnews-body-end ()
412 (and (re-search-backward nndoc-article-begin nil t
)
414 (goto-char (+ (point) (string-to-int (match-string 1))))))
416 (defun nndoc-babyl-type-p ()
417 (when (re-search-forward "\^_\^L *\n" nil t
)
420 (defun nndoc-babyl-body-begin ()
421 (re-search-forward "^\n" nil t
)
422 (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*")
423 (let ((next (or (save-excursion
424 (re-search-forward nndoc-article-begin nil t
))
426 (unless (re-search-forward "^\n" next t
)
430 (forward-line -
1)))))
432 (defun nndoc-babyl-head-begin ()
433 (when (re-search-forward "^[0-9].*\n" nil t
)
434 (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*")
438 (defun nndoc-forward-type-p ()
439 (when (and (re-search-forward "^-+ \\(Start of \\)?forwarded message.*\n+"
441 (not (re-search-forward "^Subject:.*digest" nil t
))
442 (not (re-search-backward "^From:" nil t
2))
443 (not (re-search-forward "^From:" nil t
2)))
446 (defun nndoc-rfc934-type-p ()
447 (when (and (re-search-forward "^-+ Start of forwarded.*\n+" nil t
)
448 (not (re-search-forward "^Subject:.*digest" nil t
))
449 (not (re-search-backward "^From:" nil t
2))
450 (not (re-search-forward "^From:" nil t
2)))
453 (defun nndoc-rfc822-forward-type-p ()
455 (message-narrow-to-head)
456 (when (re-search-forward "^Content-Type: *message/rfc822" nil t
)
459 (defun nndoc-rfc822-forward-body-end-function ()
460 (goto-char (point-max)))
462 (defun nndoc-mime-parts-type-p ()
463 (let ((case-fold-search t
)
464 (limit (search-forward "\n\n" nil t
)))
465 (goto-char (point-min))
469 ^Content-Type:[ \t]*multipart/[a-z]+ *; *\\(\\(\n[ \t]\\)?.*;\\)*"
470 "\\(\n[ \t]\\)?[ \t]*boundary=\"?[^\"\n]*[^\" \t\n]")
474 (defun nndoc-transform-mime-parts (article)
475 (let* ((entry (cdr (assq article nndoc-dissection-alist
)))
476 (headers (nth 5 entry
)))
478 (goto-char (point-min))
481 (defun nndoc-generate-mime-parts-head (article)
482 (let* ((entry (cdr (assq article nndoc-dissection-alist
)))
483 (headers (nth 6 entry
)))
485 (narrow-to-region (point) (point))
486 (insert-buffer-substring
487 nndoc-current-buffer
(car entry
) (nth 1 entry
))
488 (goto-char (point-max)))
492 (defun nndoc-clari-briefs-type-p ()
493 (when (let ((case-fold-search nil
))
494 (re-search-forward "^\t[^a-z]+ ([^a-z]+) --" nil t
))
497 (defun nndoc-transform-clari-briefs (article)
498 (goto-char (point-min))
499 (when (looking-at " *\\*\\(.*\\)\n")
500 (replace-match "" t t
))
501 (nndoc-generate-clari-briefs-head article
))
503 (defun nndoc-generate-clari-briefs-head (article)
504 (let ((entry (cdr (assq article nndoc-dissection-alist
)))
507 (set-buffer nndoc-current-buffer
)
509 (narrow-to-region (car entry
) (nth 3 entry
))
510 (goto-char (point-min))
511 (when (looking-at " *\\*\\(.*\\)$")
512 (setq subject
(match-string 1))
513 (when (string-match "[ \t]+$" subject
)
514 (setq subject
(substring subject
0 (match-beginning 0)))))
516 (let ((case-fold-search nil
))
518 "^\t\\([^a-z]+\\(,[^(]+\\)? ([^a-z]+)\\) --" nil t
))
519 (setq from
(match-string 1)))))
520 (insert "From: " "clari@clari.net (" (or from
"unknown") ")"
521 "\nSubject: " (or subject
"(no subject)") "\n")))
524 (defun nndoc-mime-digest-type-p ()
525 (let ((case-fold-search t
)
526 boundary-id b-delimiter entry
)
529 (concat "^Content-Type: *multipart/digest;[ \t\n]*[ \t]"
530 "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)")
533 (setq boundary-id
(match-string 1)
534 b-delimiter
(concat "\n--" boundary-id
"[ \t]*$"))
535 (setq entry
(assq 'mime-digest nndoc-type-alist
))
538 (cons 'head-begin
"^ ?\n")
539 (cons 'head-end
"^ ?$")
540 (cons 'body-begin
"^ ?\n")
541 (cons 'article-begin b-delimiter
)
542 (cons 'body-end-function
'nndoc-digest-body-end
)
543 (cons 'file-end
(concat "\n--" boundary-id
"--[ \t]*$"))))
546 (defun nndoc-standard-digest-type-p ()
547 (when (and (re-search-forward (concat "^" (make-string 70 ?-
) "\n\n") nil t
)
549 (concat "\n\n" (make-string 30 ?-
) "\n\n") nil t
))
552 (defun nndoc-digest-body-end ()
553 (and (re-search-forward nndoc-article-begin nil t
)
554 (goto-char (match-beginning 0))))
556 (defun nndoc-slack-digest-type-p ()
559 (defun nndoc-lanl-gov-announce-type-p ()
560 (when (let ((case-fold-search nil
))
561 (re-search-forward "^\\\\\\\\\nPaper: [a-z-]+/[0-9]+" nil t
))
564 (defun nndoc-transform-lanl-gov-announce (article)
565 (goto-char (point-max))
566 (when (re-search-backward "^\\\\\\\\ +(\\([^ ]*\\) , *\\([^ ]*\\))" nil t
)
567 (replace-match "\n\nGet it at \\1 (\\2)" t nil
)))
569 (defun nndoc-generate-lanl-gov-head (article)
570 (let ((entry (cdr (assq article nndoc-dissection-alist
)))
571 (e-mail "no address given")
574 (set-buffer nndoc-current-buffer
)
576 (narrow-to-region (car entry
) (nth 1 entry
))
577 (goto-char (point-min))
578 (when (looking-at "^Paper.*: \\([a-z-]+/[0-9]+\\)")
579 (setq subject
(concat " (" (match-string 1) ")"))
580 (when (re-search-forward "^From: \\([^ ]+\\)" nil t
)
581 (setq e-mail
(match-string 1)))
582 (when (re-search-forward "^Title: \\([^\f]*\\)\nAuthors?: \\(.*\\)"
584 (setq subject
(concat (match-string 1) subject
))
585 (setq from
(concat (match-string 2) " <" e-mail
">"))))))
586 (while (and from
(string-match "(\[^)\]*)" from
))
587 (setq from
(replace-match "" t t from
)))
588 (insert "From: " (or from
"unknown")
589 "\nSubject: " (or subject
"(no subject)") "\n")))
591 (defun nndoc-nsmail-type-p ()
592 (when (looking-at "From - ")
595 (defun nndoc-outlook-article-begin ()
596 (prog1 (re-search-forward "From:\\|Received:" nil t
)
597 (goto-char (match-beginning 0))))
599 (defun nndoc-outlook-type-p ()
600 ;; FIXME: Is JMF the magic of outlook mailbox? -- ShengHuo.
603 (deffoo nndoc-request-accept-article
(group &optional server last
)
608 ;;; Functions for dissecting the documents
611 (defun nndoc-search (regexp)
613 (re-search-forward regexp nil t
)
614 (beginning-of-line)))
616 (defun nndoc-dissect-buffer ()
617 "Go through the document and partition it into heads/bodies/articles."
620 head-begin head-end body-begin body-end
)
621 (setq nndoc-dissection-alist nil
)
623 (set-buffer nndoc-current-buffer
)
624 (goto-char (point-min))
625 ;; Remove blank lines.
626 (while (eq (following-char) ?
\n)
628 ;; Find the beginning of the file.
629 (when nndoc-file-begin
630 (nndoc-search nndoc-file-begin
))
631 ;; Go through the file.
632 (while (if (and first nndoc-first-article
)
633 (nndoc-search nndoc-first-article
)
634 (nndoc-article-begin))
636 (cond (nndoc-head-begin-function
637 (funcall nndoc-head-begin-function
))
639 (nndoc-search nndoc-head-begin
)))
642 (looking-at nndoc-file-end
)))
643 (goto-char (point-max))
644 (setq head-begin
(point))
645 (nndoc-search (or nndoc-head-end
"^$"))
646 (setq head-end
(point))
647 (if nndoc-body-begin-function
648 (funcall nndoc-body-begin-function
)
649 (nndoc-search (or nndoc-body-begin
"^\n")))
650 (setq body-begin
(point))
651 (or (and nndoc-body-end-function
652 (funcall nndoc-body-end-function
))
654 (nndoc-search nndoc-body-end
))
655 (nndoc-article-begin)
657 (goto-char (point-max))
659 (and (re-search-backward nndoc-file-end nil t
)
660 (beginning-of-line)))))
661 (setq body-end
(point))
662 (push (list (incf i
) head-begin head-end body-begin body-end
663 (count-lines body-begin body-end
))
664 nndoc-dissection-alist
))))))
666 (defun nndoc-article-begin ()
667 (if nndoc-article-begin-function
668 (funcall nndoc-article-begin-function
)
670 (nndoc-search nndoc-article-begin
))))
672 (defun nndoc-unquote-dashes ()
673 "Unquote quoted non-separators in digests."
674 (while (re-search-forward "^- -"nil t
)
675 (replace-match "-" t t
)))
677 ;; Against compiler warnings.
678 (defvar nndoc-mime-split-ordinal
)
680 (defun nndoc-dissect-mime-parts ()
681 "Go through a MIME composite article and partition it into sub-articles.
682 When a MIME entity contains sub-entities, dissection produces one article for
683 the header of this entity, and one article per sub-entity."
684 (setq nndoc-dissection-alist nil
685 nndoc-mime-split-ordinal
0)
687 (set-buffer nndoc-current-buffer
)
688 (nndoc-dissect-mime-parts-sub (point-min) (point-max) nil nil nil
)))
690 (defun nndoc-dissect-mime-parts-sub (head-begin body-end article-insert
692 "Dissect an entity, within a composite MIME message.
693 The complete message or MIME entity extends from HEAD-BEGIN to BODY-END.
694 ARTICLE-INSERT should be added at beginning for generating a full article.
695 The string POSITION holds a dotted decimal representation of the article
696 position in the hierarchical structure, it is nil for the outer entity.
697 PARENT is the message-ID of the parent summary line, or nil for none."
698 (let ((case-fold-search t
)
699 (message-id (nnmail-message-id))
700 head-end body-begin summary-insert message-rfc822 multipart-any
701 subject content-type type subtype boundary-regexp
)
702 ;; Gracefully handle a missing body.
703 (goto-char head-begin
)
704 (if (or (and (eq (char-after) ?
\n) (or (forward-char 1) t
))
705 (search-forward "\n\n" body-end t
))
706 (setq head-end
(1- (point))
708 (setq head-end body-end
709 body-begin body-end
))
710 (narrow-to-region head-begin head-end
)
711 ;; Save MIME attributes.
712 (goto-char head-begin
)
713 (setq content-type
(message-fetch-field "Content-Type"))
716 "^ *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)" content-type
)
717 (setq type
(downcase (match-string 1 content-type
))
718 subtype
(downcase (match-string 2 content-type
))
719 message-rfc822
(and (string= type
"message")
720 (string= subtype
"rfc822"))
721 multipart-any
(string= type
"multipart")))
722 (when (string-match ";[ \t\n]*name=\\([^ \t\n;]+\\)" content-type
)
723 (setq subject
(match-string 1 content-type
)))
724 (when (string-match "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)" content-type
)
725 (setq boundary-regexp
(concat "^--"
727 (match-string 1 content-type
))
728 "\\(--\\)?[ \t]*\n"))))
730 (when (or multipart-any
(not article-insert
))
731 (setq subject
(message-fetch-field "Subject"))))
735 ;; Prepare the article and summary inserts.
736 (unless article-insert
737 (setq article-insert
(buffer-substring (point-min) (point-max))
738 head-end head-begin
))
739 (setq summary-insert article-insert
)
740 ;; - summary Subject.
742 (let ((line (concat "Subject: <" position
743 (and position multipart-any
".")
744 (and multipart-any
"*")
745 (and (or position multipart-any
) " ")
746 (cond ((string= subtype
"plain") type
)
747 ((string= subtype
"basic") type
)
753 (if (string-match "Subject:.*\n\\([ \t].*\n\\)*" summary-insert
)
754 (replace-match line t t summary-insert
)
755 (concat summary-insert line
))))
756 ;; - summary Message-ID.
758 (let ((line (concat "Message-ID: " message-id
"\n")))
759 (if (string-match "Message-ID:.*\n\\([ \t].*\n\\)*" summary-insert
)
760 (replace-match line t t summary-insert
)
761 (concat summary-insert line
))))
762 ;; - summary References.
765 (let ((line (concat "References: " parent
"\n")))
766 (if (string-match "References:.*\n\\([ \t].*\n\\)*"
768 (replace-match line t t summary-insert
)
769 (concat summary-insert line
)))))
770 ;; Generate dissection information for this entity.
771 (push (list (incf nndoc-mime-split-ordinal
)
772 head-begin head-end body-begin body-end
773 (count-lines body-begin body-end
)
774 article-insert summary-insert
)
775 nndoc-dissection-alist
)
776 ;; Recurse for all sub-entities, if any.
781 (nndoc-dissect-mime-parts-sub body-begin body-end nil
782 position message-id
)))
783 ((and multipart-any boundary-regexp
)
784 (let ((part-counter 0)
785 part-begin part-end eof-flag
)
786 (while (string-match "\
787 ^\\(Lines\\|Content-\\(Type\\|Transfer-Encoding\\|Disposition\\)\\):.*\n\\([ \t].*\n\\)*"
789 (setq article-insert
(replace-match "" t t article-insert
)))
790 (let ((case-fold-search nil
))
791 (goto-char body-begin
)
792 (setq eof-flag
(not (re-search-forward boundary-regexp body-end t
)))
793 (while (not eof-flag
)
794 (setq part-begin
(point))
795 (cond ((re-search-forward boundary-regexp body-end t
)
796 (or (not (match-string 1))
797 (string= (match-string 1) "")
800 (setq part-end
(point))
802 (t (setq part-end body-end
805 (nndoc-dissect-mime-parts-sub
806 part-begin part-end article-insert
809 (format "%d" (incf part-counter
)))
813 (defun nndoc-add-type (definition &optional position
)
814 "Add document DEFINITION to the list of nndoc document definitions.
815 If POSITION is nil or `last', the definition will be added
816 as the last checked definition, if t or `first', add as the
817 first definition, and if any other symbol, add after that
818 symbol in the alist."
819 ;; First remove any old instances.
820 (gnus-pull (car definition
) nndoc-type-alist
)
821 ;; Then enter the new definition in the proper place.
823 ((or (null position
) (eq position
'last
))
824 (setq nndoc-type-alist
(nconc nndoc-type-alist
(list definition
))))
825 ((or (eq position t
) (eq position
'first
))
826 (push definition nndoc-type-alist
))
828 (let ((list (memq (assq position nndoc-type-alist
)
831 (error "No such position: %s" position
))
832 (setcdr list
(cons definition
(cdr list
)))))))
836 ;;; nndoc.el ends here