;;; nndoc.el --- single file access for Gnus
-;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc.
+;; Copyright (C) 1995,96,97,98 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
(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
(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.
+;; 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.
(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 (eq (char-after (1- (point))) ?\n)
+ (unless (= (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)
- (mm-enable-multibyte)
+ (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]+ *;\\(\\(\n[ \t]\\)?.*;\\)*"
- "\\(\n[ \t]\\)?[ \t]*boundary=\"?[^\"\n]*[^\" \t\n]")
- limit t))
+ (re-search-forward
+ (concat "\
+^Content-Type:[ \t]*multipart/[a-z]+;\\(.*;\\)*"
+ "[ \t\n]*[ \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
+ (unless (= article 1)
+ ;; Ensure some MIME-Version.
+ (goto-char (point-min))
+ (search-forward "\n\n")
+ (let ((case-fold-search nil)
+ (limit (point)))
(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))))
+ (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 body-present)
+ (let ((entry (cdr (assq (if body-present 1 article) nndoc-dissection-alist))))
+ (let ((subject (if body-present
+ nndoc-mime-subject
+ (concat "<" (nth 5 entry) ">")))
+ (message-id (nth 6 entry))
+ (references (nth 7 entry)))
+ (insert nndoc-mime-header)
+ (and subject (insert "Subject: " subject "\n"))
+ (and message-id (insert "Message-ID: " message-id "\n"))
+ (and references (insert "References: " references "\n")))))
(defun nndoc-clari-briefs-type-p ()
(when (let ((case-fold-search 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.
+ (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.
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)
+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 body-end
- body-begin body-end))
- (narrow-to-region head-begin head-end)
+ (setq head-end end
+ body-begin 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
+ (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"))
- ;; 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) " ")
+ (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))
- ">"
- (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)))))
+ (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)
- article-insert summary-insert)
+ comment message-id references)
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)))
+ (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)))
(while (not eof-flag)
- (setq part-begin (point))
- (cond ((re-search-forward boundary-regexp body-end t)
+ (setq begin (point))
+ (cond ((re-search-forward boundary body-end t)
(or (not (match-string 1))
(string= (match-string 1) "")
(setq eof-flag t))
(forward-line -1)
- (setq part-end (point))
+ (setq end (point))
(forward-line 1))
- (t (setq part-end body-end
+ (t (setq 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)))))))))
+ (nndoc-dissect-mime-parts-sub begin end
+ (concat position (when position ".")
+ (format "%d"
+ (incf part-counter)))
+ (nnmail-message-id)
+ message-id)))))))
;;;###autoload
(defun nndoc-add-type (definition &optional position)
projects / elisp / gnus.git- / blobdiff