;;; nndoc.el --- single file access for Gnus ;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc. ;; Author: Lars Magne Ingebrigtsen ;; Masanobu UMEDA ;; Keywords: news ;; This file is part of GNU Emacs. ;; GNU Emacs is free software; you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation; either version 2, or (at your option) ;; any later version. ;; GNU Emacs is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with GNU Emacs; see the file COPYING. If not, write to the ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, ;; Boston, MA 02111-1307, USA. ;;; Commentary: ;;; Code: (require 'nnheader) (require 'message) (require 'nnmail) (require 'nnoo) (require 'gnus-util) (eval-when-compile (require 'cl)) (nnoo-declare nndoc) (defvoo nndoc-article-type 'guess "*Type of the file. One of `mbox', `babyl', `digest', `news', `rnews', `mmdf', `forward', `rfc934', `rfc822-forward', `mime-digest', `mime-parts', `standard-digest', `slack-digest', `clari-briefs' or `guess'.") (defvoo nndoc-post-type 'mail "*Whether the nndoc group is `mail' or `post'.") (defvoo nndoc-open-document-hook 'nnheader-ms-strip-cr "Hook run after opening a document. The default function removes all trailing carriage returns from the document.") (defvar nndoc-type-alist `((mmdf (article-begin . "^\^A\^A\^A\^A\n") (body-end . "^\^A\^A\^A\^A\n")) (news (article-begin . "^Path:")) (rnews (article-begin . "^#! *rnews +\\([0-9]+\\) *\n") (body-end-function . nndoc-rnews-body-end)) (mbox (article-begin-function . nndoc-mbox-article-begin) (body-end-function . nndoc-mbox-body-end)) (babyl (article-begin . "\^_\^L *\n") (body-end . "\^_") (body-begin-function . nndoc-babyl-body-begin) (head-begin-function . nndoc-babyl-head-begin)) (forward (article-begin . "^-+ Start of forwarded message -+\n+") (body-end . "^-+ End of forwarded message -+$") (prepare-body-function . nndoc-unquote-dashes)) (rfc934 (article-begin . "^--.*\n+") (body-end . "^--.*$") (prepare-body-function . nndoc-unquote-dashes)) (clari-briefs (article-begin . "^ \\*") (body-end . "^\t------*[ \t]^*\n^ \\*") (body-begin . "^\t") (head-end . "^\t") (generate-head-function . nndoc-generate-clari-briefs-head) (article-transform-function . nndoc-transform-clari-briefs)) (mime-digest (article-begin . "") (head-end . "^ ?$") (body-end . "") (file-end . "") (subtype digest guess)) (mime-parts (generate-head-function . nndoc-generate-mime-parts-head) (article-transform-function . nndoc-transform-mime-parts)) (standard-digest (first-article . ,(concat "^" (make-string 70 ?-) "\n *\n+")) (article-begin . ,(concat "^\n" (make-string 30 ?-) "\n *\n+")) (prepare-body-function . nndoc-unquote-dashes) (body-end-function . nndoc-digest-body-end) (head-end . "^ *$") (body-begin . "^ *\n") (file-end . "^End of .*digest.*[0-9].*\n\\*\\*\\|^End of.*Digest *$") (subtype digest guess)) (slack-digest (article-begin . "^------------------------------*[\n \t]+") (head-end . "^ ?$") (body-end-function . nndoc-digest-body-end) (body-begin . "^ ?$") (file-end . "^End of") (prepare-body-function . nndoc-unquote-dashes) (subtype digest guess)) (lanl-gov-announce (article-begin . "^\\\\\\\\\n") (head-begin . "^Paper.*:") (head-end . "\\(^\\\\\\\\.*\n\\|-----------------\\)") (body-begin . "") (body-end . "-------------------------------------------------") (file-end . "^Title: Recent Seminal") (generate-head-function . nndoc-generate-lanl-gov-head) (article-transform-function . nndoc-transform-lanl-gov-announce) (subtype preprints guess)) (rfc822-forward (article-begin . "^\n") (body-end-function . nndoc-rfc822-forward-body-end-function)) (guess (guess . t) (subtype nil)) (digest (guess . t) (subtype nil)) (preprints (guess . t) (subtype nil)))) (defvoo nndoc-file-begin nil) (defvoo nndoc-first-article nil) (defvoo nndoc-article-begin nil) (defvoo nndoc-head-begin nil) (defvoo nndoc-head-end nil) (defvoo nndoc-file-end nil) (defvoo nndoc-body-begin nil) (defvoo nndoc-body-end-function nil) (defvoo nndoc-body-begin-function nil) (defvoo nndoc-head-begin-function nil) (defvoo nndoc-body-end nil) ;; nndoc-dissection-alist is a list of sublists. Each sublist holds the ;; following items. ARTICLE act as the association key and is an ordinal ;; starting at 1. HEAD-BEGIN [0], HEAD-END [1], BODY-BEGIN [2] and BODY-END ;; [3] are positions in the `nndoc' buffer. LINE-COUNT [4] is a count of ;; lines in the body. For MIME dissections only, ARTICLE-INSERT [5] and ;; SUMMARY-INSERT [6] give headers to insert for full article or summary line ;; generation, respectively. Other headers usually follow directly from the ;; buffer. Value `nil' means no insert. (defvoo nndoc-dissection-alist nil) (defvoo nndoc-prepare-body-function nil) (defvoo nndoc-generate-head-function nil) (defvoo nndoc-article-transform-function nil) (defvoo nndoc-article-begin-function nil) (defvoo nndoc-status-string "") (defvoo nndoc-group-alist nil) (defvoo nndoc-current-buffer nil "Current nndoc news buffer.") (defvoo nndoc-address nil) (defconst nndoc-version "nndoc 1.0" "nndoc version.") ;;; Interface functions (nnoo-define-basics nndoc) (deffoo nndoc-retrieve-headers (articles &optional newsgroup server fetch-old) (when (nndoc-possibly-change-buffer newsgroup server) (save-excursion (set-buffer nntp-server-buffer) (erase-buffer) (let (article entry) (if (stringp (car articles)) 'headers (while articles (when (setq entry (cdr (assq (setq article (pop articles)) nndoc-dissection-alist))) (insert (format "221 %d Article retrieved.\n" article)) (if nndoc-generate-head-function (funcall nndoc-generate-head-function article) (insert-buffer-substring nndoc-current-buffer (car entry) (nth 1 entry))) (goto-char (point-max)) (unless (eq (char-after (1- (point))) ?\n) (insert "\n")) (insert (format "Lines: %d\n" (nth 4 entry))) (insert ".\n"))) (nnheader-fold-continuation-lines) 'headers))))) (deffoo nndoc-request-article (article &optional newsgroup server buffer) (nndoc-possibly-change-buffer newsgroup server) (save-excursion (let ((buffer (or buffer nntp-server-buffer)) (entry (cdr (assq article nndoc-dissection-alist))) beg) (set-buffer buffer) (erase-buffer) (when entry (if (stringp article) nil (insert-buffer-substring nndoc-current-buffer (car entry) (nth 1 entry)) (insert "\n") (setq beg (point)) (insert-buffer-substring nndoc-current-buffer (nth 2 entry) (nth 3 entry)) (goto-char beg) (when nndoc-prepare-body-function (funcall nndoc-prepare-body-function)) (when nndoc-article-transform-function (funcall nndoc-article-transform-function article)) t))))) (deffoo nndoc-request-group (group &optional server dont-check) "Select news GROUP." (let (number) (cond ((not (nndoc-possibly-change-buffer group server)) (nnheader-report 'nndoc "No such file or buffer: %s" nndoc-address)) (dont-check (nnheader-report 'nndoc "Selected group %s" group) t) ((zerop (setq number (length nndoc-dissection-alist))) (nndoc-close-group group) (nnheader-report 'nndoc "No articles in group %s" group)) (t (nnheader-insert "211 %d %d %d %s\n" number 1 number group))))) (deffoo nndoc-request-type (group &optional article) (cond ((not article) 'unknown) (nndoc-post-type nndoc-post-type) (t 'unknown))) (deffoo nndoc-close-group (group &optional server) (nndoc-possibly-change-buffer group server) (and nndoc-current-buffer (buffer-name nndoc-current-buffer) (kill-buffer nndoc-current-buffer)) (setq nndoc-group-alist (delq (assoc group nndoc-group-alist) nndoc-group-alist)) (setq nndoc-current-buffer nil) (nnoo-close-server 'nndoc server) (setq nndoc-dissection-alist nil) t) (deffoo nndoc-request-list (&optional server) nil) (deffoo nndoc-request-newgroups (date &optional server) nil) (deffoo nndoc-request-list-newsgroups (&optional server) nil) ;;; Internal functions. (defun nndoc-possibly-change-buffer (group source) (let (buf) (cond ;; The current buffer is this group's buffer. ((and nndoc-current-buffer (buffer-name nndoc-current-buffer) (eq nndoc-current-buffer (setq buf (cdr (assoc group nndoc-group-alist)))))) ;; We change buffers by taking an old from the group alist. ;; `source' is either a string (a file name) or a buffer object. (buf (setq nndoc-current-buffer buf)) ;; It's a totally new group. ((or (and (bufferp nndoc-address) (buffer-name nndoc-address)) (and (stringp nndoc-address) (file-exists-p nndoc-address) (not (file-directory-p nndoc-address)))) (push (cons group (setq nndoc-current-buffer (get-buffer-create (concat " *nndoc " group "*")))) nndoc-group-alist) (setq nndoc-dissection-alist nil) (save-excursion (set-buffer nndoc-current-buffer) (erase-buffer) (if (stringp nndoc-address) (nnheader-insert-file-contents nndoc-address) (insert-buffer-substring nndoc-address)) (run-hooks 'nndoc-open-document-hook)))) ;; Initialize the nndoc structures according to this new document. (when (and nndoc-current-buffer (not nndoc-dissection-alist)) (save-excursion (set-buffer nndoc-current-buffer) (nndoc-set-delims) (if (eq nndoc-article-type 'mime-parts) (nndoc-dissect-mime-parts) (nndoc-dissect-buffer)))) (unless nndoc-current-buffer (nndoc-close-server)) ;; Return whether we managed to select a file. nndoc-current-buffer)) ;;; ;;; Deciding what document type we have ;;; (defun nndoc-set-delims () "Set the nndoc delimiter variables according to the type of the document." (let ((vars '(nndoc-file-begin nndoc-first-article nndoc-article-begin-function nndoc-head-begin nndoc-head-end nndoc-file-end nndoc-article-begin nndoc-body-begin nndoc-body-end-function nndoc-body-end nndoc-prepare-body-function nndoc-article-transform-function nndoc-generate-head-function nndoc-body-begin-function nndoc-head-begin-function))) (while vars (set (pop vars) nil))) (let (defs) ;; Guess away until we find the real file type. (while (assq 'guess (setq defs (cdr (assq nndoc-article-type nndoc-type-alist)))) (setq nndoc-article-type (nndoc-guess-type nndoc-article-type))) ;; Set the nndoc variables. (while defs (set (intern (format "nndoc-%s" (caar defs))) (cdr (pop defs)))))) (defun nndoc-guess-type (subtype) (let ((alist nndoc-type-alist) results result entry) (while (and (not result) (setq entry (pop alist))) (when (memq subtype (or (cdr (assq 'subtype entry)) '(guess))) (goto-char (point-min)) (when (numberp (setq result (funcall (intern (format "nndoc-%s-type-p" (car entry)))))) (push (cons result entry) results) (setq result nil)))) (unless (or result results) (error "Document is not of any recognized type")) (if result (car entry) (cadar (sort results 'car-less-than-car))))) ;;; ;;; Built-in type predicates and functions ;;; (defun nndoc-mbox-type-p () (when (looking-at message-unix-mail-delimiter) t)) (defun nndoc-mbox-article-begin () (when (re-search-forward (concat "^" message-unix-mail-delimiter) nil t) (goto-char (match-beginning 0)))) (defun nndoc-mbox-body-end () (let ((beg (point)) len end) (when (save-excursion (and (re-search-backward (concat "^" message-unix-mail-delimiter) nil t) (setq end (point)) (search-forward "\n\n" beg t) (re-search-backward "^Content-Length:[ \t]*\\([0-9]+\\) *$" end t) (setq len (string-to-int (match-string 1))) (search-forward "\n\n" beg t) (unless (= (setq len (+ (point) len)) (point-max)) (and (< len (point-max)) (goto-char len) (looking-at message-unix-mail-delimiter))))) (goto-char len)))) (defun nndoc-mmdf-type-p () (when (looking-at "\^A\^A\^A\^A$") t)) (defun nndoc-news-type-p () (when (looking-at "^Path:.*\n") t)) (defun nndoc-rnews-type-p () (when (looking-at "#! *rnews") t)) (defun nndoc-rnews-body-end () (and (re-search-backward nndoc-article-begin nil t) (forward-line 1) (goto-char (+ (point) (string-to-int (match-string 1)))))) (defun nndoc-babyl-type-p () (when (re-search-forward "\^_\^L *\n" nil t) t)) (defun nndoc-babyl-body-begin () (re-search-forward "^\n" nil t) (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*") (let ((next (or (save-excursion (re-search-forward nndoc-article-begin nil t)) (point-max)))) (unless (re-search-forward "^\n" next t) (goto-char next) (forward-line -1) (insert "\n") (forward-line -1))))) (defun nndoc-babyl-head-begin () (when (re-search-forward "^[0-9].*\n" nil t) (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*") (forward-line 1)) t)) (defun nndoc-forward-type-p () (when (and (re-search-forward "^-+ Start of forwarded message -+\n+" nil t) (not (re-search-forward "^Subject:.*digest" nil t)) (not (re-search-backward "^From:" nil t 2)) (not (re-search-forward "^From:" nil t 2))) t)) (defun nndoc-rfc934-type-p () (when (and (re-search-forward "^-+ Start of forwarded.*\n+" nil t) (not (re-search-forward "^Subject:.*digest" nil t)) (not (re-search-backward "^From:" nil t 2)) (not (re-search-forward "^From:" nil t 2))) t)) (defun nndoc-rfc822-forward-type-p () (save-restriction (message-narrow-to-head) (when (re-search-forward "^Content-Type: *message/rfc822" nil t) t))) (defun nndoc-rfc822-forward-body-end-function () (goto-char (point-max))) (defun nndoc-mime-parts-type-p () (let ((case-fold-search t) (limit (search-forward "\n\n" nil t))) (goto-char (point-min)) (when (and limit (re-search-forward (concat "\ ^Content-Type:[ \t]*multipart/[a-z]+ *;\\(\\(\n[ \t]\\)?.*;\\)*" "\\(\n[ \t]\\)?[ \t]*boundary=\"?[^\"\n]*[^\" \t\n]") limit t)) t))) (defun nndoc-transform-mime-parts (article) (let* ((entry (cdr (assq article nndoc-dissection-alist))) (headers (nth 5 entry))) (when headers (goto-char (point-min)) (insert headers)))) (defun nndoc-generate-mime-parts-head (article) (let* ((entry (cdr (assq article nndoc-dissection-alist))) (headers (nth 6 entry))) (when headers (insert headers)) (insert-buffer-substring nndoc-current-buffer (car entry) (nth 1 entry)))) (defun nndoc-clari-briefs-type-p () (when (let ((case-fold-search nil)) (re-search-forward "^\t[^a-z]+ ([^a-z]+) --" nil t)) t)) (defun nndoc-transform-clari-briefs (article) (goto-char (point-min)) (when (looking-at " *\\*\\(.*\\)\n") (replace-match "" t t)) (nndoc-generate-clari-briefs-head article)) (defun nndoc-generate-clari-briefs-head (article) (let ((entry (cdr (assq article nndoc-dissection-alist))) subject from) (save-excursion (set-buffer nndoc-current-buffer) (save-restriction (narrow-to-region (car entry) (nth 3 entry)) (goto-char (point-min)) (when (looking-at " *\\*\\(.*\\)$") (setq subject (match-string 1)) (when (string-match "[ \t]+$" subject) (setq subject (substring subject 0 (match-beginning 0))))) (when (let ((case-fold-search nil)) (re-search-forward "^\t\\([^a-z]+\\(,[^(]+\\)? ([^a-z]+)\\) --" nil t)) (setq from (match-string 1))))) (insert "From: " "clari@clari.net (" (or from "unknown") ")" "\nSubject: " (or subject "(no subject)") "\n"))) (defun nndoc-mime-digest-type-p () (let ((case-fold-search t) boundary-id b-delimiter entry) (when (and (re-search-forward (concat "^Content-Type: *multipart/digest;[ \t\n]*[ \t]" "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)") nil t) (match-beginning 1)) (setq boundary-id (match-string 1) b-delimiter (concat "\n--" boundary-id "[\n \t]+")) (setq entry (assq 'mime-digest nndoc-type-alist)) (setcdr entry (list (cons 'head-end "^ ?$") (cons 'body-begin "^ ?\n") (cons 'article-begin b-delimiter) (cons 'body-end-function 'nndoc-digest-body-end) (cons 'file-end (concat "\n--" boundary-id "--[ \t]*$")))) t))) (defun nndoc-standard-digest-type-p () (when (and (re-search-forward (concat "^" (make-string 70 ?-) "\n\n") nil t) (re-search-forward (concat "\n\n" (make-string 30 ?-) "\n\n") nil t)) t)) (defun nndoc-digest-body-end () (and (re-search-forward nndoc-article-begin nil t) (goto-char (match-beginning 0)))) (defun nndoc-slack-digest-type-p () 0) (defun nndoc-lanl-gov-announce-type-p () (when (let ((case-fold-search nil)) (re-search-forward "^\\\\\\\\\nPaper: [a-z-]+/[0-9]+" nil t)) t)) (defun nndoc-transform-lanl-gov-announce (article) (goto-char (point-max)) (when (re-search-backward "^\\\\\\\\ +(\\([^ ]*\\) , *\\([^ ]*\\))" nil t) (replace-match "\n\nGet it at \\1 (\\2)" t nil)) ;; (when (re-search-backward "^\\\\\\\\$" nil t) ;; (replace-match "" t t)) ) (defun nndoc-generate-lanl-gov-head (article) (let ((entry (cdr (assq article nndoc-dissection-alist))) (e-mail "no address given") subject from) (save-excursion (set-buffer nndoc-current-buffer) (save-restriction (narrow-to-region (car entry) (nth 1 entry)) (goto-char (point-min)) (when (looking-at "^Paper.*: \\([a-z-]+/[0-9]+\\)") (setq subject (concat " (" (match-string 1) ")")) (when (re-search-forward "^From: \\([^ ]+\\)" nil t) (setq e-mail (match-string 1))) (when (re-search-forward "^Title: \\([^\f]*\\)\nAuthors?: \\(.*\\)" nil t) (setq subject (concat (match-string 1) subject)) (setq from (concat (match-string 2) " <" e-mail ">")))) )) (while (and from (string-match "(\[^)\]*)" from)) (setq from (replace-match "" t t from))) (insert "From: " (or from "unknown") "\nSubject: " (or subject "(no subject)") "\n"))) (deffoo nndoc-request-accept-article (group &optional server last) nil) ;;; ;;; Functions for dissecting the documents ;;; (defun nndoc-search (regexp) (prog1 (re-search-forward regexp nil t) (beginning-of-line))) (defun nndoc-dissect-buffer () "Go through the document and partition it into heads/bodies/articles." (let ((i 0) (first t) head-begin head-end body-begin body-end) (setq nndoc-dissection-alist nil) (save-excursion (set-buffer nndoc-current-buffer) (goto-char (point-min)) ;; Find the beginning of the file. (when nndoc-file-begin (nndoc-search nndoc-file-begin)) ;; Go through the file. (while (if (and first nndoc-first-article) (nndoc-search nndoc-first-article) (nndoc-article-begin)) (setq first nil) (cond (nndoc-head-begin-function (funcall nndoc-head-begin-function)) (nndoc-head-begin (nndoc-search nndoc-head-begin))) (if (or (eobp) (and nndoc-file-end (looking-at nndoc-file-end))) (goto-char (point-max)) (setq head-begin (point)) (nndoc-search (or nndoc-head-end "^$")) (setq head-end (point)) (if nndoc-body-begin-function (funcall nndoc-body-begin-function) (nndoc-search (or nndoc-body-begin "^\n"))) (setq body-begin (point)) (or (and nndoc-body-end-function (funcall nndoc-body-end-function)) (and nndoc-body-end (nndoc-search nndoc-body-end)) (nndoc-article-begin) (progn (goto-char (point-max)) (when nndoc-file-end (and (re-search-backward nndoc-file-end nil t) (beginning-of-line))))) (setq body-end (point)) (push (list (incf i) head-begin head-end body-begin body-end (count-lines body-begin body-end)) nndoc-dissection-alist)))))) (defun nndoc-article-begin () (if nndoc-article-begin-function (funcall nndoc-article-begin-function) (ignore-errors (nndoc-search nndoc-article-begin)))) (defun nndoc-unquote-dashes () "Unquote quoted non-separators in digests." (while (re-search-forward "^- -"nil t) (replace-match "-" t t))) ;; Against compiler warnings. (defvar nndoc-mime-split-ordinal) (defun nndoc-dissect-mime-parts () "Go through a MIME composite article and partition it into sub-articles. When a MIME entity contains sub-entities, dissection produces one article for the header of this entity, and one article per sub-entity." (setq nndoc-dissection-alist nil nndoc-mime-split-ordinal 0) (save-excursion (set-buffer nndoc-current-buffer) (nndoc-dissect-mime-parts-sub (point-min) (point-max) nil nil nil))) (defun nndoc-dissect-mime-parts-sub (head-begin body-end article-insert position parent) "Dissect an entity, within a composite MIME message. The complete message or MIME entity extends from HEAD-BEGIN to BODY-END. ARTICLE-INSERT should be added at beginning for generating a full article. The string POSITION holds a dotted decimal representation of the article position in the hierarchical structure, it is nil for the outer entity. PARENT is the message-ID of the parent summary line, or nil for none." (let ((case-fold-search t) (message-id (nnmail-message-id)) head-end body-begin summary-insert message-rfc822 multipart-any subject content-type type subtype boundary-regexp) ;; Gracefully handle a missing body. (goto-char head-begin) (if (search-forward "\n\n" body-end t) (setq head-end (1- (point)) body-begin (point)) (setq head-end body-end body-begin body-end)) (narrow-to-region head-begin head-end) ;; Save MIME attributes. (goto-char head-begin) (setq content-type (message-fetch-field "Content-Type")) (when content-type (when (string-match "^ *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)" content-type) (setq type (downcase (match-string 1 content-type)) subtype (downcase (match-string 2 content-type)) message-rfc822 (and (string= type "message") (string= subtype "rfc822")) multipart-any (string= type "multipart"))) (when (string-match ";[ \t\n]*name=\\([^ \t\n;]+\\)" content-type) (setq subject (match-string 1 content-type))) (when (string-match "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)" content-type) (setq boundary-regexp (concat "^--" (regexp-quote (match-string 1 content-type)) "\\(--\\)?[ \t]*\n")))) (unless subject (when (or multipart-any (not article-insert)) (setq subject (message-fetch-field "Subject")))) (unless type (setq type "text" subtype "plain")) ;; Prepare the article and summary inserts. (unless article-insert (setq article-insert (buffer-substring (point-min) (point-max)) head-end head-begin)) (setq summary-insert article-insert) ;; - summary Subject. (setq summary-insert (let ((line (concat "Subject: <" position (and position multipart-any ".") (and multipart-any "*") (and (or position multipart-any) " ") (cond ((string= subtype "plain") type) ((string= subtype "basic") type) (t subtype)) ">" (and subject " ") subject "\n"))) (if (string-match "Subject:.*\n\\([ \t].*\n\\)*" summary-insert) (replace-match line t t summary-insert) (concat summary-insert line)))) ;; - summary Message-ID. (setq summary-insert (let ((line (concat "Message-ID: " message-id "\n"))) (if (string-match "Message-ID:.*\n\\([ \t].*\n\\)*" summary-insert) (replace-match line t t summary-insert) (concat summary-insert line)))) ;; - summary References. (when parent (setq summary-insert (let ((line (concat "References: " parent "\n"))) (if (string-match "References:.*\n\\([ \t].*\n\\)*" summary-insert) (replace-match line t t summary-insert) (concat summary-insert line))))) ;; Generate dissection information for this entity. (push (list (incf nndoc-mime-split-ordinal) head-begin head-end body-begin body-end (count-lines body-begin body-end) article-insert summary-insert) nndoc-dissection-alist) ;; Recurse for all sub-entities, if any. (widen) (cond (message-rfc822 (save-excursion (nndoc-dissect-mime-parts-sub body-begin body-end nil position message-id))) ((and multipart-any boundary-regexp) (let ((part-counter 0) part-begin part-end eof-flag) (while (string-match "\ ^\\(Lines\\|Content-\\(Type\\|Transfer-Encoding\\)\\):.*\n\\([ \t].*\n\\)*" article-insert) (setq article-insert (replace-match "" t t article-insert))) (let ((case-fold-search nil)) (goto-char body-begin) (setq eof-flag (not (re-search-forward boundary-regexp body-end t))) (while (not eof-flag) (setq part-begin (point)) (cond ((re-search-forward boundary-regexp body-end t) (or (not (match-string 1)) (string= (match-string 1) "") (setq eof-flag t)) (forward-line -1) (setq part-end (point)) (forward-line 1)) (t (setq part-end body-end eof-flag t))) (save-excursion (nndoc-dissect-mime-parts-sub part-begin part-end article-insert (concat position (and position ".") (format "%d" (incf part-counter))) message-id))))))))) ;;;###autoload (defun nndoc-add-type (definition &optional position) "Add document DEFINITION to the list of nndoc document definitions. If POSITION is nil or `last', the definition will be added as the last checked definition, if t or `first', add as the first definition, and if any other symbol, add after that symbol in the alist." ;; First remove any old instances. (gnus-pull (car definition) nndoc-type-alist) ;; Then enter the new definition in the proper place. (cond ((or (null position) (eq position 'last)) (setq nndoc-type-alist (nconc nndoc-type-alist (list definition)))) ((or (eq position t) (eq position 'first)) (push definition nndoc-type-alist)) (t (let ((list (memq (assq position nndoc-type-alist) nndoc-type-alist))) (unless list (error "No such position: %s" position)) (setcdr list (cons definition (cdr list))))))) (provide 'nndoc) ;;; nndoc.el ends here