X-Git-Url: http://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fnndoc.el;h=090b20fa95cdd4543b4f0403559e7c06d2b5e727;hb=397e18023881a13e1448bad3c1db0a02026cf864;hp=60d21cfe1608e263f10f0635b49c8e272e3195e1;hpb=2d200657d7dd2b82d25655ca54136e51aae71884;p=gnus diff --git a/lisp/nndoc.el b/lisp/nndoc.el index 60d21cfe1..090b20fa9 100644 --- a/lisp/nndoc.el +++ b/lisp/nndoc.el @@ -1,7 +1,7 @@ ;;; nndoc.el --- single file access for Gnus -;; Copyright (C) 1995 Free Software Foundation, Inc. +;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc. -;; Author: Lars Magne Ingebrigtsen +;; Author: Lars Magne Ingebrigtsen ;; Masanobu UMEDA ;; Keywords: news @@ -18,320 +18,789 @@ ;; 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, 675 Mass Ave, Cambridge, MA 02139, USA. +;; 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 'rmail) +(require 'message) (require 'nnmail) - -(defvar nndoc-article-type 'mbox - "*Type of the file - one of `mbox', `babyl' or `digest'.") - -(defconst nndoc-type-to-regexp - (list (list 'mbox - (concat "^" rmail-unix-mail-delimiter) - (concat "^" rmail-unix-mail-delimiter) - nil "^$" nil nil nil) - (list 'babyl "\^_\^L *\n" "\^_" nil "^$" nil nil - "\\*\\*\\* EOOH \\*\\*\\*\n\\(^.+\n\\)*") - (list 'digest - "^------------------------------*[\n \t]+" - "^------------------------------[\n \t]+" - nil "^ ?$" - "^------------------------------*[\n \t]+" - "^End of" nil)) - "Regular expressions for articles of the various types.") +(require 'nnoo) +(require 'gnus-util) +(eval-when-compile (require 'cl)) + +(nnoo-declare nndoc) + +(defvoo nndoc-article-type 'guess + "*Type of the file. +One of `mbox', `babyl', `digest', `news', `rnews', `mmdf', `forward', +`rfc934', `rfc822-forward', `mime-digest', `mime-parts', `standard-digest', +`slack-digest', `clari-briefs' or `guess'.") + +(defvoo nndoc-post-type 'mail + "*Whether the nndoc group is `mail' or `post'.") + +(defvoo nndoc-open-document-hook 'nnheader-ms-strip-cr + "Hook run after opening a document. +The default function removes all trailing carriage returns +from the document.") + +(defvar nndoc-type-alist + `((mmdf + (article-begin . "^\^A\^A\^A\^A\n") + (body-end . "^\^A\^A\^A\^A\n")) + (news + (article-begin . "^Path:")) + (rnews + (article-begin . "^#! *rnews +\\([0-9]+\\) *\n") + (body-end-function . nndoc-rnews-body-end)) + (mbox + (article-begin-function . nndoc-mbox-article-begin) + (body-end-function . nndoc-mbox-body-end)) + (babyl + (article-begin . "\^_\^L *\n") + (body-end . "\^_") + (body-begin-function . nndoc-babyl-body-begin) + (head-begin-function . nndoc-babyl-head-begin)) + (forward + (article-begin . "^-+ Start of forwarded message -+\n+") + (body-end . "^-+ End of forwarded message -+$") + (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)))) - -(defvar nndoc-article-begin nil) -(defvar nndoc-article-end nil) -(defvar nndoc-head-begin nil) -(defvar nndoc-head-end nil) -(defvar nndoc-first-article nil) -(defvar nndoc-end-of-file nil) -(defvar nndoc-body-begin nil) - -(defvar nndoc-current-server nil) -(defvar nndoc-server-alist nil) -(defvar nndoc-server-variables - (list - (list 'nndoc-article-type nndoc-article-type) - '(nndoc-article-begin nil) - '(nndoc-article-end nil) - '(nndoc-head-begin nil) - '(nndoc-head-end nil) - '(nndoc-first-article nil) - '(nndoc-current-buffer nil) - '(nndoc-group-alist nil) - '(nndoc-end-of-file nil) - '(nndoc-body-begin nil) - '(nndoc-address nil))) - -(defconst nndoc-version "nndoc 0.1" - "nndoc version.") - -(defvar nndoc-current-buffer 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) -(defvar nndoc-address nil) +(defconst nndoc-version "nndoc 1.0" + "nndoc version.") -(defvar nndoc-status-string "") - -(defvar nndoc-group-alist nil) - ;;; Interface functions -(defun nndoc-retrieve-headers (sequence &optional newsgroup server) - (save-excursion - (set-buffer nntp-server-buffer) - (erase-buffer) - (let ((prev 2) - article p beg lines) - (nndoc-possibly-change-buffer newsgroup server) - (if (stringp (car sequence)) - 'headers - (set-buffer nndoc-current-buffer) - (goto-char (point-min)) - (re-search-forward (or nndoc-first-article - nndoc-article-begin) nil t) - (or (not nndoc-head-begin) - (re-search-forward nndoc-head-begin nil t)) - (re-search-forward nndoc-head-end nil t) - (while sequence - (setq article (car sequence)) - (set-buffer nndoc-current-buffer) - (if (not (nndoc-forward-article (max 0 (- article prev)))) - () - (setq p (point)) - (setq beg (or (and - (re-search-backward nndoc-article-begin nil t) - (match-end 0)) - (point-min))) - (goto-char p) - (setq lines (count-lines - (point) - (or - (and (re-search-forward nndoc-article-end nil t) - (goto-char (match-beginning 0))) - (goto-char (point-max))))) - - (set-buffer nntp-server-buffer) - (insert (format "221 %d Article retrieved.\n" article)) - (insert-buffer-substring nndoc-current-buffer beg p) - (goto-char (point-max)) - (insert (format "Lines: %d\n" lines)) - (insert ".\n")) - - (setq prev article - sequence (cdr sequence))) - - ;; Fold continuation lines. - (goto-char (point-min)) - (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t) - (replace-match " " t t)) - 'headers)))) - -(defun nndoc-open-server (server &optional defs) - (nnheader-init-server-buffer) - (if (equal server nndoc-current-server) - t - (if nndoc-current-server - (setq nndoc-server-alist - (cons (list nndoc-current-server - (nnheader-save-variables nndoc-server-variables)) - nndoc-server-alist))) - (let ((state (assoc server nndoc-server-alist))) - (if state - (progn - (nnheader-restore-variables (nth 1 state)) - (setq nndoc-server-alist (delq state nndoc-server-alist))) - (nnheader-set-init-variables nndoc-server-variables defs))) - (setq nndoc-current-server server) - (let ((defs (cdr (assq nndoc-article-type nndoc-type-to-regexp)))) - (setq nndoc-article-begin (nth 0 defs)) - (setq nndoc-article-end (nth 1 defs)) - (setq nndoc-head-begin (nth 2 defs)) - (setq nndoc-head-end (nth 3 defs)) - (setq nndoc-first-article (nth 4 defs)) - (setq nndoc-end-of-file (nth 5 defs)) - (setq nndoc-body-begin (nth 6 defs))) - t)) - -(defun nndoc-close-server (&optional server) - t) +(nnoo-define-basics nndoc) -(defun nndoc-server-opened (&optional server) - (and (equal server nndoc-current-server) - nntp-server-buffer - (buffer-name nntp-server-buffer))) - -(defun nndoc-status-message (&optional server) - nndoc-status-string) - -(defun nndoc-request-article (article &optional newsgroup server buffer) +(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))) + (let ((buffer (or buffer nntp-server-buffer)) + (entry (cdr (assq article nndoc-dissection-alist))) + beg) (set-buffer buffer) (erase-buffer) - (if (stringp article) - nil - (nndoc-insert-article article) - t)))) - -(defun nndoc-request-group (group &optional server dont-check) + (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." - (save-excursion - (if (not (nndoc-possibly-change-buffer group server)) - (progn - (setq nndoc-status-string "No such file or buffer") - nil) - (if dont-check - t - (save-excursion - (set-buffer nntp-server-buffer) - (erase-buffer) - (let ((number (nndoc-number-of-articles))) - (if (zerop number) - (progn - (nndoc-close-group group) - nil) - (insert (format "211 %d %d %d %s\n" number 1 number group)) - t))))))) - -(defun nndoc-close-group (group &optional server) + (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) - (kill-buffer nndoc-current-buffer) + (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) -(defun nndoc-request-list (&optional server) +(deffoo nndoc-request-list (&optional server) nil) -(defun nndoc-request-newgroups (date &optional server) +(deffoo nndoc-request-newgroups (date &optional server) nil) -(defun nndoc-request-list-newsgroups (&optional server) +(deffoo nndoc-request-list-newsgroups (&optional server) nil) -(defalias 'nndoc-request-post 'nnmail-request-post) -(defalias 'nndoc-request-post-buffer 'nnmail-request-post-buffer) - ;;; Internal functions. (defun nndoc-possibly-change-buffer (group source) (let (buf) - (cond + (cond ;; The current buffer is this group's buffer. ((and nndoc-current-buffer - (eq 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. + ;; `source' is either a string (a file name) or a buffer object. (buf (setq nndoc-current-buffer buf)) - ;; It's a totally new group. + ;; 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)))) - (setq nndoc-group-alist - (cons (cons group (setq nndoc-current-buffer - (get-buffer-create - (concat " *nndoc " group "*")))) - nndoc-group-alist)) + (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) - (buffer-disable-undo (current-buffer)) (erase-buffer) (if (stringp nndoc-address) - (insert-file-contents nndoc-address) - (save-excursion - (set-buffer nndoc-address) - (widen)) + (nnheader-insert-file-contents nndoc-address) (insert-buffer-substring nndoc-address)) - t))))) - -(defun nndoc-forward-article (n) - (while (and (> n 0) - (re-search-forward nndoc-article-begin nil t) - (or (not nndoc-head-begin) - (re-search-forward nndoc-head-begin nil t)) - (re-search-forward nndoc-head-end nil t)) - (setq n (1- n))) - (zerop n)) - -(defun nndoc-number-of-articles () - (save-excursion - (set-buffer nndoc-current-buffer) - (widen) - (goto-char (point-min)) - (let ((num 0)) - (if (re-search-forward (or nndoc-first-article - nndoc-article-begin) nil t) - (progn - (setq num 1) - (while (and (re-search-forward nndoc-article-begin nil t) - (or (not nndoc-end-of-file) - (not (looking-at nndoc-end-of-file))) - (or (not nndoc-head-begin) - (re-search-forward nndoc-head-begin nil t)) - (re-search-forward nndoc-head-end nil t)) - (setq num (1+ num))))) - num))) - -(defun nndoc-narrow-to-article (article) - (save-excursion - (set-buffer nndoc-current-buffer) - (widen) + (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)) - (while (and (re-search-forward nndoc-article-begin nil t) - (not (zerop (setq article (1- article)))))) - (if (not (zerop article)) - () - (narrow-to-region - (match-end 0) - (or (and (re-search-forward nndoc-article-end nil t) - (match-beginning 0)) - (point-max))) + (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))) -;; Insert article ARTICLE in the current buffer. -(defun nndoc-insert-article (article) - (let ((ibuf (current-buffer))) +(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) - (widen) - (goto-char (point-min)) - (while (and (re-search-forward nndoc-article-begin nil t) - (not (zerop (setq article (1- article)))))) - (if (not (zerop article)) - () - (narrow-to-region - (match-end 0) - (or (and (re-search-forward nndoc-article-end nil t) - (match-beginning 0)) - (point-max))) + (save-restriction + (narrow-to-region (car entry) (nth 3 entry)) (goto-char (point-min)) - (or (re-search-forward nndoc-head-end nil t) - (goto-char (point-max))) - (append-to-buffer ibuf (point-min) (point)) - (and nndoc-body-begin - (re-search-forward nndoc-body-begin nil t)) - (append-to-buffer ibuf (point) (point-max)) - t)))) + (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)