;;; nndoc.el --- single file access for Gnus
-;; Copyright (C) 1995,96,97,98 Free Software Foundation, Inc.
+;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
(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',
+`rfc934', `rfc822-forward', `mime-parts', `standard-digest',
`slack-digest', `clari-briefs' or `guess'.")
(defvoo nndoc-post-type 'mail
(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.")
+from the document.")
(defvar nndoc-type-alist
`((mmdf
(article-begin . "^--.*\n+")
(body-end . "^--.*$")
(prepare-body-function . nndoc-unquote-dashes))
- (mime-parts
- (generate-head-function . nndoc-generate-mime-parts-head)
- (article-transform-function . nndoc-transform-mime-parts))
(clari-briefs
(article-begin . "^ \\*")
(body-end . "^\t------*[ \t]^*\n^ \\*")
(head-end . "^\t")
(generate-head-function . nndoc-generate-clari-briefs-head)
(article-transform-function . nndoc-transform-clari-briefs))
- (mime-digest
- (article-begin . "")
- (head-end . "^ ?$")
- (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+"))
(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 is an ordinal starting at 1. HEAD-BEGIN,
-;; HEAD-END, BODY-BEGIN and BODY-END are positions in the `nndoc' buffer.
-;; LINE-COUNT is a count of lines in the body. SUBJECT, MESSAGE-ID and
-;; REFERENCES, only present for MIME dissections, are field values.
+;; following items. ARTICLE acts 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-current-buffer nil
"Current nndoc news buffer.")
(defvoo nndoc-address nil)
-(defvoo nndoc-mime-header nil)
-(defvoo nndoc-mime-subject nil)
(defconst nndoc-version "nndoc 1.0"
"nndoc version.")
(insert-buffer-substring
nndoc-current-buffer (car entry) (nth 1 entry)))
(goto-char (point-max))
- (unless (= (char-after (1- (point))) ?\n)
+ (unless (eq (char-after (1- (point))) ?\n)
(insert "\n"))
(insert (format "Lines: %d\n" (nth 4 entry)))
(insert ".\n")))
(setq nndoc-dissection-alist nil)
(save-excursion
(set-buffer nndoc-current-buffer)
- (buffer-disable-undo (current-buffer))
(erase-buffer)
(if (stringp nndoc-address)
(nnheader-insert-file-contents nndoc-address)
(limit (search-forward "\n\n" nil t)))
(goto-char (point-min))
(when (and limit
- (re-search-forward
- (concat "\
-^Content-Type:[ \t]*multipart/[a-z]+;\\(.*;\\)*"
- "[ \t\n]*[ \t]boundary=\"?[^\"\n]*[^\" \t\n]")
- limit t))
+ (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)
- (unless (= article 1)
- ;; Ensure some MIME-Version.
- (goto-char (point-min))
- (search-forward "\n\n")
- (let ((case-fold-search nil)
- (limit (point)))
+ (let* ((entry (cdr (assq article nndoc-dissection-alist)))
+ (headers (nth 5 entry)))
+ (when headers
(goto-char (point-min))
- (or (save-excursion (re-search-forward "^MIME-Version:" limit t))
- (insert "Mime-Version: 1.0\n")))
- ;; Generate default header before entity fields.
- (goto-char (point-min))
- (nndoc-generate-mime-parts-head article t)))
-
-(defun nndoc-generate-mime-parts-head (article &optional full-subject)
- (let ((entry (cdr (assq article nndoc-dissection-alist))))
- (let ((subject (concat "<" (nth 5 entry) ">"))
- (message-id (nth 6 entry))
- (references (nth 7 entry)))
- (insert nndoc-mime-header
- "Subject: "
- (cond ((not full-subject) subject)
- (nndoc-mime-subject (concat nndoc-mime-subject " " subject))
- (t subject))
- "\n")
- (and message-id (insert "Message-ID: " message-id "\n"))
- (and references (insert "References: " references "\n")))))
+ (insert headers))))
+
+(defun nndoc-generate-mime-parts-head (article)
+ (let* ((entry (cdr (assq article nndoc-dissection-alist)))
+ (headers (nth 6 entry)))
+ (save-restriction
+ (narrow-to-region (point) (point))
+ (insert-buffer-substring
+ nndoc-current-buffer (car entry) (nth 1 entry))
+ (goto-char (point-max)))
+ (when headers
+ (insert headers))))
(defun nndoc-clari-briefs-type-p ()
(when (let ((case-fold-search nil))
(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
nndoc-mime-split-ordinal 0)
(save-excursion
(set-buffer nndoc-current-buffer)
- (message-narrow-to-head)
- (let ((case-fold-search t)
- (message-id (message-fetch-field "Message-ID"))
- (references (message-fetch-field "References")))
- (setq nndoc-mime-header (buffer-substring (point-min) (point-max))
- nndoc-mime-subject (message-fetch-field "Subject"))
- (while (string-match "\
-^\\(Subject\\|Message-ID\\|References\\|Lines\\|\
-MIME-Version\\|Content-Type\\|Content-Transfer-Encoding\\|\
-\\):.*\n\\([ \t].*\n\\)*"
- nndoc-mime-header)
- (setq nndoc-mime-header (replace-match "" t t nndoc-mime-header)))
- (widen)
- (nndoc-dissect-mime-parts-sub (point-min) (point-max)
- nil message-id references))))
-
-(defun nndoc-dissect-mime-parts-sub (begin end position message-id references)
- "Dissect an entity within a composite MIME message.
-The article, which corresponds to a MIME entity, extends from BEGIN to END.
+ (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.
-The generated article should use MESSAGE-ID and REFERENCES field values."
- ;; Note: `case-fold-search' is already `t' from the calling function.
- (let ((head-begin begin)
- (body-end end)
- head-end body-begin type subtype composite comment)
- (save-excursion
- ;; 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 end
- body-begin end))
- ;; Save MIME attributes.
- (goto-char head-begin)
- (if (re-search-forward "\
-^Content-Type: *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)"
- head-end t)
- (setq type (downcase (match-string 1))
- subtype (downcase (match-string 2)))
- (setq type "text"
- subtype "plain"))
- (setq composite (string= type "multipart")
- comment (concat position
- (when (and position composite) ".")
- (when composite "*")
- (when (or position composite) " ")
- (cond ((string= subtype "plain") type)
- ((string= subtype "basic") type)
- (t subtype))))
- ;; 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)
- comment message-id references)
- nndoc-dissection-alist)
- ;; Recurse for all sub-entities, if any.
- (goto-char head-begin)
- (when (re-search-forward
- (concat "\
-^Content-Type: *multipart/\\([a-z]+\\);\\(.*;\\)*"
- "[ \t\n]*[ \t]boundary=\"?\\([^\"\n]*[^\" \t\n]\\)")
- head-end t)
- (let ((boundary (concat "\n--" (match-string 3) "\\(--\\)?[ \t]*\n"))
- (part-counter 0)
- begin end eof-flag)
- (goto-char head-end)
- (setq eof-flag (not (re-search-forward boundary body-end t)))
+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 begin (point))
- (cond ((re-search-forward boundary body-end t)
+ (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 end (point))
+ (setq part-end (point))
(forward-line 1))
- (t (setq end body-end
+ (t (setq part-end body-end
eof-flag t)))
- (nndoc-dissect-mime-parts-sub begin end
- (concat position (when position ".")
- (format "%d"
- (incf part-counter)))
- (nnmail-message-id)
- message-id)))))))
+ (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)
projects / gnus / blobdiff