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;;; rmailout.el --- "RMAIL" mail reader for Emacs: output message to a file.
;; Copyright (C) 1985, 1987, 1993 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: mail
;; This file is part of XEmacs.
;; XEmacs 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.
;; XEmacs 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 XEmacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Code:
;; Temporary until Emacs always has this variable.
(defvar rmail-delete-after-output nil
"*Non-nil means automatically delete a message that is copied to a file.")
(defvar rmail-output-file-alist nil
"*Alist matching regexps to suggested output Rmail files.
This is a list of elements of the form (REGEXP . NAME-EXP).
The suggestion is taken if REGEXP matches anywhere in the message buffer.
NAME-EXP may be a string constant giving the file name to use,
or more generally it may be any kind of expression that returns
a file name as a string.")
;;; There are functions elsewhere in Emacs that use this function; check
;;; them out before you change the calling method.
(defun rmail-output-to-rmail-file (file-name &optional count)
"Append the current message to an Rmail file named FILE-NAME.
If the file does not exist, ask if it should be created.
If file is being visited, the message is appended to the Emacs
buffer visiting that file.
If the file exists and is not an Rmail file,
the message is appended in inbox format.
A prefix argument N says to output N consecutive messages
starting with the current one. Deleted messages are skipped and don't count."
(interactive
(let ((default-file
(let (answer tail)
(setq tail rmail-output-file-alist)
;; Suggest a file based on a pattern match.
(while (and tail (not answer))
(save-excursion
(goto-char (point-min))
(if (re-search-forward (car (car tail)) nil t)
(setq answer (eval (cdr (car tail)))))
(setq tail (cdr tail))))
;; If not suggestions, use same file as last time.
(or answer rmail-last-rmail-file))))
(list (setq rmail-last-rmail-file
(if default-file
(read-file-name
(concat "Output message to Rmail file: (default "
(file-name-nondirectory default-file)
") ")
(file-name-directory default-file)
default-file)
(read-file-name "Output message to Rmail file: ")))
(prefix-numeric-value current-prefix-arg))))
(or count (setq count 1))
(setq file-name
(expand-file-name file-name
(file-name-directory rmail-last-rmail-file)))
(if (and (file-readable-p file-name) (not (rmail-file-p file-name)))
(rmail-output file-name count)
(rmail-maybe-set-message-counters)
(setq file-name (abbreviate-file-name file-name))
(or (get-file-buffer file-name)
(file-exists-p file-name)
(if (yes-or-no-p
(concat "\"" file-name "\" does not exist, create it? "))
(let ((file-buffer (create-file-buffer file-name)))
(save-excursion
(set-buffer file-buffer)
(rmail-insert-rmail-file-header)
(let ((require-final-newline nil))
(write-region (point-min) (point-max) file-name t 1)))
(kill-buffer file-buffer))
(error "Output file does not exist")))
(while (> count 0)
(let (redelete)
(unwind-protect
(progn
(save-restriction
(widen)
(if (rmail-message-deleted-p rmail-current-message)
(progn (setq redelete t)
(rmail-set-attribute "deleted" nil)))
;; Decide whether to append to a file or to an Emacs buffer.
(save-excursion
(let ((buf (get-file-buffer file-name))
(cur (current-buffer))
(beg (1+ (rmail-msgbeg rmail-current-message)))
(end (1+ (rmail-msgend rmail-current-message))))
(if (not buf)
(append-to-file beg end file-name)
(if (eq buf (current-buffer))
(error "Can't output message to same file it's already in"))
;; File has been visited, in buffer BUF.
(set-buffer buf)
(let ((buffer-read-only nil)
(msg (and (boundp 'rmail-current-message)
rmail-current-message)))
;; If MSG is non-nil, buffer is in RMAIL mode.
(if msg
(progn
(rmail-maybe-set-message-counters)
(widen)
(narrow-to-region (point-max) (point-max))
(insert-buffer-substring cur beg end)
(goto-char (point-min))
(widen)
(search-backward "\n\^_")
(narrow-to-region (point) (point-max))
(rmail-count-new-messages t)
(rmail-show-message msg))
;; Output file not in rmail mode => just insert at
;; the end.
(narrow-to-region (point-min) (1+ (buffer-size)))
(goto-char (point-max))
(insert-buffer-substring cur beg end)))))))
(rmail-set-attribute "filed" t))
(if redelete (rmail-set-attribute "deleted" t))))
(setq count (1- count))
(if rmail-delete-after-output
(rmail-delete-forward)
(if (> count 0)
(rmail-next-undeleted-message 1))))))
;; Returns t if file FILE is an Rmail file.
;;;###autoload
(defun rmail-file-p (file)
(let ((buf (generate-new-buffer " *rmail-file-p*")))
(unwind-protect
(save-excursion
(set-buffer buf)
(insert-file-contents file nil 0 100)
(looking-at "BABYL OPTIONS:"))
(kill-buffer buf))))
;;; There are functions elsewhere in Emacs that use this function; check
;;; them out before you change the calling method.
;;; ####Boy, FROM-GNUS, what wonderful abstraction. You loser.
(defun rmail-output (file-name &optional count noattribute from-gnus)
"Append this message to Unix mail file named FILE-NAME.
A prefix argument N says to output N consecutive messages
starting with the current one. Deleted messages are skipped and don't count.
When called from lisp code, N may be omitted.
If the pruned message header is shown on the current message, then
messages will be appended with pruned headers; otherwise, messages
will be appended with their original headers.
The optional third argument NOATTRIBUTE, if non-nil, says not
to set the `filed' attribute, and not to display a message.
The optional fourth argument FROM-GNUS is set when called from GNUS."
(interactive
(list (setq rmail-last-file
(read-file-name
(concat "Output message to Unix mail file"
(if rmail-last-file
(concat " (default "
(file-name-nondirectory rmail-last-file)
"): " )
": "))
(and rmail-last-file (file-name-directory rmail-last-file))
rmail-last-file))
(prefix-numeric-value current-prefix-arg)))
(or count (setq count 1))
(setq file-name
(expand-file-name file-name
(and rmail-last-file
(file-name-directory rmail-last-file))))
(if (and (file-readable-p file-name) (rmail-file-p file-name))
(rmail-output-to-rmail-file file-name count)
(let ((orig-count count)
(rmailbuf (current-buffer))
(case-fold-search t)
(tembuf (get-buffer-create " rmail-output"))
(original-headers-p
(and (not from-gnus)
(save-excursion
(save-restriction
(narrow-to-region (rmail-msgbeg rmail-current-message) (point-max))
(goto-char (point-min))
(forward-line 1)
(= (following-char) ?0)))))
header-beginning
mail-from)
(while (> count 0)
(or from-gnus
(setq mail-from
(save-excursion
(save-restriction
(widen)
(goto-char (rmail-msgbeg rmail-current-message))
(setq header-beginning (point))
(search-forward "\n*** EOOH ***\n")
(narrow-to-region header-beginning (point))
(mail-fetch-field "Mail-From")))))
(save-excursion
(set-buffer tembuf)
(erase-buffer)
(insert-buffer-substring rmailbuf)
(insert "\n")
(goto-char (point-min))
(if mail-from
(insert mail-from "\n")
(insert "From "
(mail-strip-quoted-names (or (mail-fetch-field "from")
(mail-fetch-field "really-from")
(mail-fetch-field "sender")
"unknown"))
" " (current-time-string) "\n"))
;; ``Quote'' "\nFrom " as "\n>From "
;; (note that this isn't really quoting, as there is no requirement
;; that "\n[>]+From " be quoted in the same transparent way.)
(while (search-forward "\nFrom " nil t)
(forward-char -5)
(insert ?>))
(write-region (point-min) (point-max) file-name t
(if noattribute 'nomsg)))
(or noattribute
(if (equal major-mode 'rmail-mode)
(rmail-set-attribute "filed" t)))
(setq count (1- count))
(or from-gnus
(let ((next-message-p
(if rmail-delete-after-output
(rmail-delete-forward)
(if (> count 0)
(rmail-next-undeleted-message 1))))
(num-appended (- orig-count count)))
(if (and next-message-p original-headers-p)
(rmail-toggle-header))
(if (and (> count 0) (not next-message-p))
(progn
(error
(save-excursion
(set-buffer rmailbuf)
(format "Only %d message%s appended" num-appended
(if (= num-appended 1) "" "s"))))
(setq count 0))))))
(kill-buffer tembuf))))
;;; rmailout.el ends here
|
