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;;; rmailout.el --- "RMAIL" mail reader for Emacs: output message to a file.
;; Maintainer: FSF
;; Last-Modified: 01 Mar 1991
;; Keywords: mail
;; Copyright (C) 1985, 1987 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, 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 . FILENAME).")
(defun rmail-output-to-rmail-file (count file-name)
"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.
A prefix argument N says to output N consecutive messages
starting with the current one. Deleted messages are skipped and don't count."
(interactive (list (prefix-numeric-value current-prefix-arg)
(read-file-name
(concat "Output message to Rmail file: (default "
(file-name-nondirectory rmail-last-rmail-file)
") ")
(file-name-directory rmail-last-rmail-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 (cdr (car tail))))
(setq tail (cdr tail))))
;; If not suggestions, use same file as last time.
(or answer rmail-last-rmail-file)))))
(setq file-name
(expand-file-name file-name
(file-name-directory rmail-last-rmail-file)))
(setq rmail-last-rmail-file file-name)
(rmail-maybe-set-message-counters)
(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)))))
(defun rmail-output (count file-name)
"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."
(interactive
(list (prefix-numeric-value current-prefix-arg)
(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)))
(setq file-name
(expand-file-name file-name
(and rmail-last-file
(file-name-directory rmail-last-file))))
(setq rmail-last-file file-name)
(while (> count 0)
(let ((rmailbuf (current-buffer))
(tembuf (get-buffer-create " rmail-output"))
(case-fold-search t))
(save-excursion
(set-buffer tembuf)
(erase-buffer)
;; If we can do it, read a little of the file
;; to check whether it is an RMAIL file.
;; If it is, don't mess it up.
(if (fboundp 'insert-partial-file-contents)
(progn
(insert-partial-file-contents file-name 0 20)
(if (looking-at "BABYL OPTIONS:\n")
(error (save-excursion
(set-buffer rmailbuf)
(substitute-command-keys
"File %s is an RMAIL file; use the \\[rmail-output-to-rmail-file] command"))
file-name))
(erase-buffer)))
(insert-buffer-substring rmailbuf)
(insert "\n")
(goto-char (point-min))
(insert "From "
(mail-strip-quoted-names (or (mail-fetch-field "from")
(mail-fetch-field "really-from")
(mail-fetch-field "sender")
"unknown"))
" " (or (mail-fetch-field "date") (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 ?>))
(append-to-file (point-min) (point-max) file-name))
(kill-buffer tembuf))
(if (equal major-mode 'rmail-mode)
(rmail-set-attribute "filed" t))
(setq count (1- count))
(if rmail-delete-after-output
(rmail-delete-forward)
(if (> count 0)
(rmail-next-undeleted-message 1)))))
;;; rmailout.el ends here
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