-;;; nndoc.el --- single file access for Gnus
;; Copyright (C) 1995,96 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
(forward
(article-begin . "^-+ Start of forwarded message -+\n+")
(body-end . "^-+ End of forwarded message -+$")
- (prepare-body . nndoc-unquote-dashes))
+ (prepare-body-function . nndoc-unquote-dashes))
(clari-briefs
(article-begin . "^ \\*")
(body-end . "^\t------*[ \t]^*\n^ \\*")
(body-begin . "^\t")
(head-end . "^\t")
- (generate-head . nndoc-generate-clari-briefs-head)
- (article-transform . nndoc-transform-clari-briefs))
- (slack-digest
- (article-begin . "^------------------------------*[\n \t]+")
- (head-end . "^ ?$")
- (body-end-function . nndoc-digest-body-end)
- (body-begin . "^ ?$")
- (file-end . "^End of")
- (prepare-body . nndoc-unquote-dashes))
+ (generate-head-function . nndoc-generate-clari-briefs-head)
+ (article-transform-function . nndoc-transform-clari-briefs))
(mime-digest
(article-begin . "")
(head-end . "^ ?$")
(body-end . "")
- (file-end . ""))
+ (file-end . "")
+ (subtype digest guess))
(standard-digest
(first-article . ,(concat "^" (make-string 70 ?-) "\n\n+"))
(article-begin . ,(concat "\n\n" (make-string 30 ?-) "\n\n+"))
- (prepare-body . nndoc-unquote-dashes)
+ (prepare-body-function . nndoc-unquote-dashes)
(body-end-function . nndoc-digest-body-end)
(head-end . "^ ?$")
(body-begin . "^ ?\n")
- (file-end . "^End of .*digest.*[0-9].*\n\\*\\*\\|^End of.*Digest *$"))
+ (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))
(guess
- (guess . nndoc-guess-type))
+ (guess . t)
+ (subtype nil))
(digest
- (guess . nndoc-guess-digest-type))
+ (guess . t)
+ (subtype nil))
+ (preprints
+ (guess . t)
+ (subtype nil))
))
\f
(defvoo nndoc-head-begin-function nil)
(defvoo nndoc-body-end nil)
(defvoo nndoc-dissection-alist nil)
-(defvoo nndoc-prepare-body nil)
-(defvoo nndoc-generate-head nil)
-(defvoo nndoc-article-transform nil)
+(defvoo nndoc-prepare-body-function nil)
+(defvoo nndoc-generate-head-function nil)
+(defvoo nndoc-article-transform-function nil)
(defvoo nndoc-status-string "")
(defvoo nndoc-group-alist nil)
(when (setq entry (cdr (assq (setq article (pop articles))
nndoc-dissection-alist)))
(insert (format "221 %d Article retrieved.\n" article))
- (if nndoc-generate-head
- (funcall nndoc-generate-head 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))
(insert-buffer-substring
nndoc-current-buffer (nth 2 entry) (nth 3 entry))
(goto-char beg)
- (when nndoc-prepare-body
- (funcall nndoc-prepare-body))
- (when nndoc-article-transform
- (funcall nndoc-article-transform article))
+ (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)
;; Return whether we managed to select a file.
nndoc-current-buffer))
-;; MIME (RFC 1341) digest hack by Ulrik Dickow <dickow@nbi.dk>.
-(defun nndoc-guess-digest-type ()
- "Guess what digest type the current document is."
- (let ((case-fold-search t) ; We match a bit too much, keep it simple.
- boundary-id b-delimiter entry)
- (goto-char (point-min))
- (cond
- ;; MIME digest.
- ((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 'body-end
-; (concat "\n--" boundary-id "\\(--\\)?[\n \t]+"))
- (cons 'file-end (concat "\n--" boundary-id "--[ \t]*$"))))
- 'mime-digest)
- ;; Standard digest.
- ((and (re-search-forward (concat "^" (make-string 70 ?-) "\n\n") nil t)
- (re-search-forward
- (concat "\n\n" (make-string 30 ?-) "\n\n") nil t))
- 'standard-digest)
- ;; Stupid digest.
- (t
- 'slack-digest))))
-
-(defun nndoc-guess-type ()
- "Guess what document type is in the current buffer."
- (goto-char (point-min))
- (cond
- ((looking-at message-unix-mail-delimiter)
- 'mbox)
- ((looking-at "\^A\^A\^A\^A$")
- 'mmdf)
- ((looking-at "^Path:.*\n")
- 'news)
- ((looking-at "#! *rnews")
- 'rnews)
- ((re-search-forward "\^_\^L *\n" nil t)
- 'babyl)
- ((save-excursion
- (and (re-search-forward "^-+ Start of forwarded message -+\n+" nil t)
- (not (re-search-forward "^Subject:.*digest" nil t))))
- 'forward)
- ((let ((case-fold-search nil))
- (re-search-forward "^\t[^a-z]+ ([^a-z]+) --" nil t))
- 'clari-briefs)
- (t
- 'digest)))
+;;;
+;;; Deciding what document type we have
+;;;
(defun nndoc-set-delims ()
"Set the nndoc delimiter variables according to the type of the document."
nndoc-article-end 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 nndoc-article-transform
- nndoc-generate-head nndoc-body-begin-function
+ 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)
+ (let (defs)
;; Guess away until we find the real file type.
- (while (setq defs (cdr (assq nndoc-article-type nndoc-type-alist))
- guess (assq 'guess defs))
- (setq nndoc-article-type (funcall (cdr guess))))
+ (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 (lambda (r1 r2) (< (car r1) (car r2))))))))
+
+;;;
+;;; Built-in type predicates and functions
+;;;
+
+(defun nndoc-mbox-type-p ()
+ (when (looking-at message-unix-mail-delimiter)
+ t))
+
+(defun nndoc-mbox-body-end ()
+ (let ((beg (point))
+ len end)
+ (when
+ (save-excursion
+ (and (re-search-backward nndoc-article-begin nil t)
+ (setq end (point))
+ (search-forward "\n\n" beg t)
+ (re-search-backward
+ "^Content-Length:[ \t]*\\([0-9]+\\) *$" end t)
+ (setq len (string-to-int (match-string 1)))
+ (search-forward "\n\n" beg t)
+ (or (= (setq len (+ (point) len)) (point-max))
+ (and (< len (point-max))
+ (goto-char len)
+ (looking-at nndoc-article-begin)))))
+ (goto-char len))))
+
+(defun nndoc-mmdf-type-p ()
+ (when (looking-at "\^A\^A\^A\^A$")
+ 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 \*\*\*")
+ (re-search-forward "^\n" nil t)))
+
+(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)))
+ t))
+
+(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")))
+
+
+
+;;;
+;;; Functions for dissecting the documents
+;;;
+
(defun nndoc-search (regexp)
(prog1
(re-search-forward regexp nil t)
(funcall nndoc-head-begin-function))
(nndoc-head-begin
(nndoc-search nndoc-head-begin)))
- (if (and nndoc-file-end
- (looking-at nndoc-file-end))
+ (if (or (>= (point) (point-max)) (and nndoc-file-end
+ (looking-at nndoc-file-end)))
(goto-char (point-max))
(setq head-begin (point))
(nndoc-search (or nndoc-head-end "^$"))
(while (re-search-forward "^- -"nil t)
(replace-match "-" t t)))
-(defun nndoc-digest-body-end ()
- (and (re-search-forward nndoc-article-begin nil t)
- (goto-char (match-beginning 0))))
-
-(defun nndoc-mbox-body-end ()
- (let ((beg (point))
- len end)
- (when
- (save-excursion
- (and (re-search-backward nndoc-article-begin nil t)
- (setq end (point))
- (search-forward "\n\n" beg t)
- (re-search-backward
- "^Content-Length:[ \t]*\\([0-9]+\\) *$" end t)
- (setq len (string-to-int (match-string 1)))
- (search-forward "\n\n" beg t)
- (or (= (setq len (+ (point) len)) (point-max))
- (and (< len (point-max))
- (goto-char len)
- (looking-at nndoc-article-begin)))))
- (goto-char len))))
-
-(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-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-babyl-body-begin ()
- (re-search-forward "^\n" nil t)
- (when (looking-at "\*\*\* EOOH \*\*\*")
- (re-search-forward "^\n" nil t)))
-
-(defun nndoc-babyl-head-begin ()
- (when (re-search-forward "^[0-9].*\n" nil t)
- (when (looking-at "\*\*\* EOOH \*\*\*")
- (forward-line 1))
- t))
+;;;###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.
+ (setq nndoc-type-alist
+ (delq (assq (car definition) nndoc-type-alist)
+ 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)
projects / gnus / blobdiff