1 ;;; nndoc.el --- single file access for Gnus
2 ;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
5 ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
35 (eval-when-compile (require 'cl))
39 (defvoo nndoc-article-type 'guess
41 One of `mbox', `babyl', `digest', `news', `rnews', `mmdf', `forward',
42 `rfc934', `rfc822-forward', `mime-parts', `standard-digest',
43 `slack-digest', `clari-briefs', `nsmail' or `guess'.")
45 (defvoo nndoc-post-type 'mail
46 "*Whether the nndoc group is `mail' or `post'.")
48 (defvoo nndoc-open-document-hook 'nnheader-ms-strip-cr
49 "Hook run after opening a document.
50 The default function removes all trailing carriage returns
53 (defvar nndoc-type-alist
55 (article-begin . "^\^A\^A\^A\^A\n")
56 (body-end . "^\^A\^A\^A\^A\n"))
58 (article-begin . "^From - "))
60 (article-begin . "^Path:"))
62 (article-begin . "^#! *rnews +\\([0-9]+\\) *\n")
63 (body-end-function . nndoc-rnews-body-end))
65 (article-begin-function . nndoc-mbox-article-begin)
66 (body-end-function . nndoc-mbox-body-end))
68 (article-begin . "\^_\^L *\n")
70 (body-begin-function . nndoc-babyl-body-begin)
71 (head-begin-function . nndoc-babyl-head-begin))
73 (article-begin . "^-+ Start of forwarded message -+\n+")
74 (body-end . "^-+ End of forwarded message -+$")
75 (prepare-body-function . nndoc-unquote-dashes))
77 (article-begin . "^--.*\n+")
79 (prepare-body-function . nndoc-unquote-dashes))
81 (article-begin . "^ \\*")
82 (body-end . "^\t------*[ \t]^*\n^ \\*")
85 (generate-head-function . nndoc-generate-clari-briefs-head)
86 (article-transform-function . nndoc-transform-clari-briefs))
88 (generate-head-function . nndoc-generate-mime-parts-head)
89 (article-transform-function . nndoc-transform-mime-parts))
91 (first-article . ,(concat "^" (make-string 70 ?-) "\n *\n+"))
92 (article-begin . ,(concat "^\n" (make-string 30 ?-) "\n *\n+"))
93 (prepare-body-function . nndoc-unquote-dashes)
94 (body-end-function . nndoc-digest-body-end)
96 (body-begin . "^ *\n")
97 (file-end . "^End of .*digest.*[0-9].*\n\\*\\*\\|^End of.*Digest *$")
98 (subtype digest guess))
100 (article-begin . "^------------------------------*[\n \t]+")
102 (body-end-function . nndoc-digest-body-end)
103 (body-begin . "^ ?$")
104 (file-end . "^End of")
105 (prepare-body-function . nndoc-unquote-dashes)
106 (subtype digest guess))
108 (article-begin . "^\\\\\\\\\n")
109 (head-begin . "^Paper.*:")
110 (head-end . "\\(^\\\\\\\\.*\n\\|-----------------\\)")
112 (body-end . "-------------------------------------------------")
113 (file-end . "^Title: Recent Seminal")
114 (generate-head-function . nndoc-generate-lanl-gov-head)
115 (article-transform-function . nndoc-transform-lanl-gov-announce)
116 (subtype preprints guess))
118 (article-begin . "^\n")
119 (body-end-function . nndoc-rfc822-forward-body-end-function))
131 (defvoo nndoc-file-begin nil)
132 (defvoo nndoc-first-article nil)
133 (defvoo nndoc-article-begin nil)
134 (defvoo nndoc-head-begin nil)
135 (defvoo nndoc-head-end nil)
136 (defvoo nndoc-file-end nil)
137 (defvoo nndoc-body-begin nil)
138 (defvoo nndoc-body-end-function nil)
139 (defvoo nndoc-body-begin-function nil)
140 (defvoo nndoc-head-begin-function nil)
141 (defvoo nndoc-body-end nil)
142 ;; nndoc-dissection-alist is a list of sublists. Each sublist holds the
143 ;; following items. ARTICLE acts as the association key and is an ordinal
144 ;; starting at 1. HEAD-BEGIN [0], HEAD-END [1], BODY-BEGIN [2] and BODY-END
145 ;; [3] are positions in the `nndoc' buffer. LINE-COUNT [4] is a count of
146 ;; lines in the body. For MIME dissections only, ARTICLE-INSERT [5] and
147 ;; SUMMARY-INSERT [6] give headers to insert for full article or summary line
148 ;; generation, respectively. Other headers usually follow directly from the
149 ;; buffer. Value `nil' means no insert.
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)
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)
162 (defconst nndoc-version "nndoc 1.0"
167 ;;; Interface functions
169 (nnoo-define-basics nndoc)
171 (deffoo nndoc-retrieve-headers (articles &optional newsgroup server fetch-old)
172 (when (nndoc-possibly-change-buffer newsgroup server)
174 (set-buffer nntp-server-buffer)
177 (if (stringp (car articles))
180 (when (setq entry (cdr (assq (setq article (pop articles))
181 nndoc-dissection-alist)))
182 (insert (format "221 %d Article retrieved.\n" article))
183 (if nndoc-generate-head-function
184 (funcall nndoc-generate-head-function article)
185 (insert-buffer-substring
186 nndoc-current-buffer (car entry) (nth 1 entry)))
187 (goto-char (point-max))
188 (unless (eq (char-after (1- (point))) ?\n)
190 (insert (format "Lines: %d\n" (nth 4 entry)))
193 (nnheader-fold-continuation-lines)
196 (deffoo nndoc-request-article (article &optional newsgroup server buffer)
197 (nndoc-possibly-change-buffer newsgroup server)
199 (let ((buffer (or buffer nntp-server-buffer))
200 (entry (cdr (assq article nndoc-dissection-alist)))
205 (if (stringp article)
207 (insert-buffer-substring
208 nndoc-current-buffer (car entry) (nth 1 entry))
211 (insert-buffer-substring
212 nndoc-current-buffer (nth 2 entry) (nth 3 entry))
214 (when nndoc-prepare-body-function
215 (funcall nndoc-prepare-body-function))
216 (when nndoc-article-transform-function
217 (funcall nndoc-article-transform-function article))
220 (deffoo nndoc-request-group (group &optional server dont-check)
224 ((not (nndoc-possibly-change-buffer group server))
225 (nnheader-report 'nndoc "No such file or buffer: %s"
228 (nnheader-report 'nndoc "Selected group %s" group)
230 ((zerop (setq number (length nndoc-dissection-alist)))
231 (nndoc-close-group group)
232 (nnheader-report 'nndoc "No articles in group %s" group))
234 (nnheader-insert "211 %d %d %d %s\n" number 1 number group)))))
236 (deffoo nndoc-request-type (group &optional article)
237 (cond ((not article) 'unknown)
238 (nndoc-post-type nndoc-post-type)
241 (deffoo nndoc-close-group (group &optional server)
242 (nndoc-possibly-change-buffer group server)
243 (and nndoc-current-buffer
244 (buffer-name nndoc-current-buffer)
245 (kill-buffer nndoc-current-buffer))
246 (setq nndoc-group-alist (delq (assoc group nndoc-group-alist)
248 (setq nndoc-current-buffer nil)
249 (nnoo-close-server 'nndoc server)
250 (setq nndoc-dissection-alist nil)
253 (deffoo nndoc-request-list (&optional server)
256 (deffoo nndoc-request-newgroups (date &optional server)
259 (deffoo nndoc-request-list-newsgroups (&optional server)
263 ;;; Internal functions.
265 (defun nndoc-possibly-change-buffer (group source)
268 ;; The current buffer is this group's buffer.
269 ((and nndoc-current-buffer
270 (buffer-name nndoc-current-buffer)
271 (eq nndoc-current-buffer
272 (setq buf (cdr (assoc group nndoc-group-alist))))))
273 ;; We change buffers by taking an old from the group alist.
274 ;; `source' is either a string (a file name) or a buffer object.
276 (setq nndoc-current-buffer buf))
277 ;; It's a totally new group.
278 ((or (and (bufferp nndoc-address)
279 (buffer-name nndoc-address))
280 (and (stringp nndoc-address)
281 (file-exists-p nndoc-address)
282 (not (file-directory-p nndoc-address))))
283 (push (cons group (setq nndoc-current-buffer
285 (concat " *nndoc " group "*"))))
287 (setq nndoc-dissection-alist nil)
289 (set-buffer nndoc-current-buffer)
290 (mm-enable-multibyte)
292 (if (stringp nndoc-address)
293 (nnheader-insert-file-contents nndoc-address)
294 (insert-buffer-substring nndoc-address))
295 (run-hooks 'nndoc-open-document-hook))))
296 ;; Initialize the nndoc structures according to this new document.
297 (when (and nndoc-current-buffer
298 (not nndoc-dissection-alist))
300 (set-buffer nndoc-current-buffer)
302 (if (eq nndoc-article-type 'mime-parts)
303 (nndoc-dissect-mime-parts)
304 (nndoc-dissect-buffer))))
305 (unless nndoc-current-buffer
306 (nndoc-close-server))
307 ;; Return whether we managed to select a file.
308 nndoc-current-buffer))
311 ;;; Deciding what document type we have
314 (defun nndoc-set-delims ()
315 "Set the nndoc delimiter variables according to the type of the document."
316 (let ((vars '(nndoc-file-begin
318 nndoc-article-begin-function
319 nndoc-head-begin nndoc-head-end
320 nndoc-file-end nndoc-article-begin
321 nndoc-body-begin nndoc-body-end-function nndoc-body-end
322 nndoc-prepare-body-function nndoc-article-transform-function
323 nndoc-generate-head-function nndoc-body-begin-function
324 nndoc-head-begin-function)))
326 (set (pop vars) nil)))
328 ;; Guess away until we find the real file type.
329 (while (assq 'guess (setq defs (cdr (assq nndoc-article-type
331 (setq nndoc-article-type (nndoc-guess-type nndoc-article-type)))
332 ;; Set the nndoc variables.
334 (set (intern (format "nndoc-%s" (caar defs)))
337 (defun nndoc-guess-type (subtype)
338 (let ((alist nndoc-type-alist)
339 results result entry)
340 (while (and (not result)
341 (setq entry (pop alist)))
342 (when (memq subtype (or (cdr (assq 'subtype entry)) '(guess)))
343 (goto-char (point-min))
344 ;; Remove blank lines.
345 (while (eq (following-char) ?\n)
347 (when (numberp (setq result (funcall (intern
348 (format "nndoc-%s-type-p"
350 (push (cons result entry) results)
352 (unless (or result results)
353 (error "Document is not of any recognized type"))
356 (cadar (sort results 'car-less-than-car)))))
359 ;;; Built-in type predicates and functions
362 (defun nndoc-mbox-type-p ()
363 (when (looking-at message-unix-mail-delimiter)
366 (defun nndoc-mbox-article-begin ()
367 (when (re-search-forward (concat "^" message-unix-mail-delimiter) nil t)
368 (goto-char (match-beginning 0))))
370 (defun nndoc-mbox-body-end ()
375 (and (re-search-backward
376 (concat "^" message-unix-mail-delimiter) nil t)
378 (search-forward "\n\n" beg t)
380 "^Content-Length:[ \t]*\\([0-9]+\\) *$" end t)
381 (setq len (string-to-int (match-string 1)))
382 (search-forward "\n\n" beg t)
383 (unless (= (setq len (+ (point) len)) (point-max))
384 (and (< len (point-max))
386 (looking-at message-unix-mail-delimiter)))))
389 (defun nndoc-mmdf-type-p ()
390 (when (looking-at "\^A\^A\^A\^A$")
393 (defun nndoc-news-type-p ()
394 (when (looking-at "^Path:.*\n")
397 (defun nndoc-rnews-type-p ()
398 (when (looking-at "#! *rnews")
401 (defun nndoc-rnews-body-end ()
402 (and (re-search-backward nndoc-article-begin nil t)
404 (goto-char (+ (point) (string-to-int (match-string 1))))))
406 (defun nndoc-babyl-type-p ()
407 (when (re-search-forward "\^_\^L *\n" nil t)
410 (defun nndoc-babyl-body-begin ()
411 (re-search-forward "^\n" nil t)
412 (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*")
413 (let ((next (or (save-excursion
414 (re-search-forward nndoc-article-begin nil t))
416 (unless (re-search-forward "^\n" next t)
420 (forward-line -1)))))
422 (defun nndoc-babyl-head-begin ()
423 (when (re-search-forward "^[0-9].*\n" nil t)
424 (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*")
428 (defun nndoc-forward-type-p ()
429 (when (and (re-search-forward "^-+ Start of forwarded message -+\n+" nil t)
430 (not (re-search-forward "^Subject:.*digest" nil t))
431 (not (re-search-backward "^From:" nil t 2))
432 (not (re-search-forward "^From:" nil t 2)))
435 (defun nndoc-rfc934-type-p ()
436 (when (and (re-search-forward "^-+ Start of forwarded.*\n+" nil t)
437 (not (re-search-forward "^Subject:.*digest" nil t))
438 (not (re-search-backward "^From:" nil t 2))
439 (not (re-search-forward "^From:" nil t 2)))
442 (defun nndoc-rfc822-forward-type-p ()
444 (message-narrow-to-head)
445 (when (re-search-forward "^Content-Type: *message/rfc822" nil t)
448 (defun nndoc-rfc822-forward-body-end-function ()
449 (goto-char (point-max)))
451 (defun nndoc-mime-parts-type-p ()
452 (let ((case-fold-search t)
453 (limit (search-forward "\n\n" nil t)))
454 (goto-char (point-min))
458 ^Content-Type:[ \t]*multipart/[a-z]+ *; *\\(\\(\n[ \t]\\)?.*;\\)*"
459 "\\(\n[ \t]\\)?[ \t]*boundary=\"?[^\"\n]*[^\" \t\n]")
463 (defun nndoc-transform-mime-parts (article)
464 (let* ((entry (cdr (assq article nndoc-dissection-alist)))
465 (headers (nth 5 entry)))
467 (goto-char (point-min))
470 (defun nndoc-generate-mime-parts-head (article)
471 (let* ((entry (cdr (assq article nndoc-dissection-alist)))
472 (headers (nth 6 entry)))
474 (narrow-to-region (point) (point))
475 (insert-buffer-substring
476 nndoc-current-buffer (car entry) (nth 1 entry))
477 (goto-char (point-max)))
481 (defun nndoc-clari-briefs-type-p ()
482 (when (let ((case-fold-search nil))
483 (re-search-forward "^\t[^a-z]+ ([^a-z]+) --" nil t))
486 (defun nndoc-transform-clari-briefs (article)
487 (goto-char (point-min))
488 (when (looking-at " *\\*\\(.*\\)\n")
489 (replace-match "" t t))
490 (nndoc-generate-clari-briefs-head article))
492 (defun nndoc-generate-clari-briefs-head (article)
493 (let ((entry (cdr (assq article nndoc-dissection-alist)))
496 (set-buffer nndoc-current-buffer)
498 (narrow-to-region (car entry) (nth 3 entry))
499 (goto-char (point-min))
500 (when (looking-at " *\\*\\(.*\\)$")
501 (setq subject (match-string 1))
502 (when (string-match "[ \t]+$" subject)
503 (setq subject (substring subject 0 (match-beginning 0)))))
505 (let ((case-fold-search nil))
507 "^\t\\([^a-z]+\\(,[^(]+\\)? ([^a-z]+)\\) --" nil t))
508 (setq from (match-string 1)))))
509 (insert "From: " "clari@clari.net (" (or from "unknown") ")"
510 "\nSubject: " (or subject "(no subject)") "\n")))
512 (defun nndoc-standard-digest-type-p ()
513 (when (and (re-search-forward (concat "^" (make-string 70 ?-) "\n\n") nil t)
515 (concat "\n\n" (make-string 30 ?-) "\n\n") nil t))
518 (defun nndoc-digest-body-end ()
519 (and (re-search-forward nndoc-article-begin nil t)
520 (goto-char (match-beginning 0))))
522 (defun nndoc-slack-digest-type-p ()
525 (defun nndoc-lanl-gov-announce-type-p ()
526 (when (let ((case-fold-search nil))
527 (re-search-forward "^\\\\\\\\\nPaper: [a-z-]+/[0-9]+" nil t))
530 (defun nndoc-transform-lanl-gov-announce (article)
531 (goto-char (point-max))
532 (when (re-search-backward "^\\\\\\\\ +(\\([^ ]*\\) , *\\([^ ]*\\))" nil t)
533 (replace-match "\n\nGet it at \\1 (\\2)" t nil))
534 ;; (when (re-search-backward "^\\\\\\\\$" nil t)
535 ;; (replace-match "" t t))
538 (defun nndoc-generate-lanl-gov-head (article)
539 (let ((entry (cdr (assq article nndoc-dissection-alist)))
540 (e-mail "no address given")
543 (set-buffer nndoc-current-buffer)
545 (narrow-to-region (car entry) (nth 1 entry))
546 (goto-char (point-min))
547 (when (looking-at "^Paper.*: \\([a-z-]+/[0-9]+\\)")
548 (setq subject (concat " (" (match-string 1) ")"))
549 (when (re-search-forward "^From: \\([^ ]+\\)" nil t)
550 (setq e-mail (match-string 1)))
551 (when (re-search-forward "^Title: \\([^\f]*\\)\nAuthors?: \\(.*\\)"
553 (setq subject (concat (match-string 1) subject))
554 (setq from (concat (match-string 2) " <" e-mail ">"))))
556 (while (and from (string-match "(\[^)\]*)" from))
557 (setq from (replace-match "" t t from)))
558 (insert "From: " (or from "unknown")
559 "\nSubject: " (or subject "(no subject)") "\n")))
561 (defun nndoc-nsmail-type-p ()
562 (when (looking-at "From - ")
565 (deffoo nndoc-request-accept-article (group &optional server last)
570 ;;; Functions for dissecting the documents
573 (defun nndoc-search (regexp)
575 (re-search-forward regexp nil t)
576 (beginning-of-line)))
578 (defun nndoc-dissect-buffer ()
579 "Go through the document and partition it into heads/bodies/articles."
582 head-begin head-end body-begin body-end)
583 (setq nndoc-dissection-alist nil)
585 (set-buffer nndoc-current-buffer)
586 (goto-char (point-min))
587 ;; Remove blank lines.
588 (while (eq (following-char) ?\n)
590 ;; Find the beginning of the file.
591 (when nndoc-file-begin
592 (nndoc-search nndoc-file-begin))
593 ;; Go through the file.
594 (while (if (and first nndoc-first-article)
595 (nndoc-search nndoc-first-article)
596 (nndoc-article-begin))
598 (cond (nndoc-head-begin-function
599 (funcall nndoc-head-begin-function))
601 (nndoc-search nndoc-head-begin)))
604 (looking-at nndoc-file-end)))
605 (goto-char (point-max))
606 (setq head-begin (point))
607 (nndoc-search (or nndoc-head-end "^$"))
608 (setq head-end (point))
609 (if nndoc-body-begin-function
610 (funcall nndoc-body-begin-function)
611 (nndoc-search (or nndoc-body-begin "^\n")))
612 (setq body-begin (point))
613 (or (and nndoc-body-end-function
614 (funcall nndoc-body-end-function))
616 (nndoc-search nndoc-body-end))
617 (nndoc-article-begin)
619 (goto-char (point-max))
621 (and (re-search-backward nndoc-file-end nil t)
622 (beginning-of-line)))))
623 (setq body-end (point))
624 (push (list (incf i) head-begin head-end body-begin body-end
625 (count-lines body-begin body-end))
626 nndoc-dissection-alist))))))
628 (defun nndoc-article-begin ()
629 (if nndoc-article-begin-function
630 (funcall nndoc-article-begin-function)
632 (nndoc-search nndoc-article-begin))))
634 (defun nndoc-unquote-dashes ()
635 "Unquote quoted non-separators in digests."
636 (while (re-search-forward "^- -"nil t)
637 (replace-match "-" t t)))
639 ;; Against compiler warnings.
640 (defvar nndoc-mime-split-ordinal)
642 (defun nndoc-dissect-mime-parts ()
643 "Go through a MIME composite article and partition it into sub-articles.
644 When a MIME entity contains sub-entities, dissection produces one article for
645 the header of this entity, and one article per sub-entity."
646 (setq nndoc-dissection-alist nil
647 nndoc-mime-split-ordinal 0)
649 (set-buffer nndoc-current-buffer)
650 (nndoc-dissect-mime-parts-sub (point-min) (point-max) nil nil nil)))
652 (defun nndoc-dissect-mime-parts-sub (head-begin body-end article-insert
654 "Dissect an entity, within a composite MIME message.
655 The complete message or MIME entity extends from HEAD-BEGIN to BODY-END.
656 ARTICLE-INSERT should be added at beginning for generating a full article.
657 The string POSITION holds a dotted decimal representation of the article
658 position in the hierarchical structure, it is nil for the outer entity.
659 PARENT is the message-ID of the parent summary line, or nil for none."
660 (let ((case-fold-search t)
661 (message-id (nnmail-message-id))
662 head-end body-begin summary-insert message-rfc822 multipart-any
663 subject content-type type subtype boundary-regexp)
664 ;; Gracefully handle a missing body.
665 (goto-char head-begin)
666 (if (search-forward "\n\n" body-end t)
667 (setq head-end (1- (point))
669 (setq head-end body-end
670 body-begin body-end))
671 (narrow-to-region head-begin head-end)
672 ;; Save MIME attributes.
673 (goto-char head-begin)
674 (setq content-type (message-fetch-field "Content-Type"))
677 "^ *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)" content-type)
678 (setq type (downcase (match-string 1 content-type))
679 subtype (downcase (match-string 2 content-type))
680 message-rfc822 (and (string= type "message")
681 (string= subtype "rfc822"))
682 multipart-any (string= type "multipart")))
683 (when (string-match ";[ \t\n]*name=\\([^ \t\n;]+\\)" content-type)
684 (setq subject (match-string 1 content-type)))
685 (when (string-match "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)" content-type)
686 (setq boundary-regexp (concat "^--"
688 (match-string 1 content-type))
689 "\\(--\\)?[ \t]*\n"))))
691 (when (or multipart-any (not article-insert))
692 (setq subject (message-fetch-field "Subject"))))
696 ;; Prepare the article and summary inserts.
697 (unless article-insert
698 (setq article-insert (buffer-substring (point-min) (point-max))
699 head-end head-begin))
700 (setq summary-insert article-insert)
701 ;; - summary Subject.
703 (let ((line (concat "Subject: <" position
704 (and position multipart-any ".")
705 (and multipart-any "*")
706 (and (or position multipart-any) " ")
707 (cond ((string= subtype "plain") type)
708 ((string= subtype "basic") type)
714 (if (string-match "Subject:.*\n\\([ \t].*\n\\)*" summary-insert)
715 (replace-match line t t summary-insert)
716 (concat summary-insert line))))
717 ;; - summary Message-ID.
719 (let ((line (concat "Message-ID: " message-id "\n")))
720 (if (string-match "Message-ID:.*\n\\([ \t].*\n\\)*" summary-insert)
721 (replace-match line t t summary-insert)
722 (concat summary-insert line))))
723 ;; - summary References.
726 (let ((line (concat "References: " parent "\n")))
727 (if (string-match "References:.*\n\\([ \t].*\n\\)*"
729 (replace-match line t t summary-insert)
730 (concat summary-insert line)))))
731 ;; Generate dissection information for this entity.
732 (push (list (incf nndoc-mime-split-ordinal)
733 head-begin head-end body-begin body-end
734 (count-lines body-begin body-end)
735 article-insert summary-insert)
736 nndoc-dissection-alist)
737 ;; Recurse for all sub-entities, if any.
742 (nndoc-dissect-mime-parts-sub body-begin body-end nil
743 position message-id)))
744 ((and multipart-any boundary-regexp)
745 (let ((part-counter 0)
746 part-begin part-end eof-flag)
747 (while (string-match "\
748 ^\\(Lines\\|Content-\\(Type\\|Transfer-Encoding\\)\\):.*\n\\([ \t].*\n\\)*"
750 (setq article-insert (replace-match "" t t article-insert)))
751 (let ((case-fold-search nil))
752 (goto-char body-begin)
753 (setq eof-flag (not (re-search-forward boundary-regexp body-end t)))
754 (while (not eof-flag)
755 (setq part-begin (point))
756 (cond ((re-search-forward boundary-regexp body-end t)
757 (or (not (match-string 1))
758 (string= (match-string 1) "")
761 (setq part-end (point))
763 (t (setq part-end body-end
766 (nndoc-dissect-mime-parts-sub
767 part-begin part-end article-insert
770 (format "%d" (incf part-counter)))
774 (defun nndoc-add-type (definition &optional position)
775 "Add document DEFINITION to the list of nndoc document definitions.
776 If POSITION is nil or `last', the definition will be added
777 as the last checked definition, if t or `first', add as the
778 first definition, and if any other symbol, add after that
779 symbol in the alist."
780 ;; First remove any old instances.
781 (gnus-pull (car definition) nndoc-type-alist)
782 ;; Then enter the new definition in the proper place.
784 ((or (null position) (eq position 'last))
785 (setq nndoc-type-alist (nconc nndoc-type-alist (list definition))))
786 ((or (eq position t) (eq position 'first))
787 (push definition nndoc-type-alist))
789 (let ((list (memq (assq position nndoc-type-alist)
792 (error "No such position: %s" position))
793 (setcdr list (cons definition (cdr list)))))))
797 ;;; nndoc.el ends here