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122 lines
4.1 KiB
EmacsLisp
122 lines
4.1 KiB
EmacsLisp
;;; rmailedit.el --- "RMAIL edit mode" Edit the current message.
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;; Copyright (C) 1985, 1994 Free Software Foundation, Inc.
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;; Maintainer: FSF
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;; Keywords: mail
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Code:
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(require 'rmail)
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(defvar rmail-edit-map nil)
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(if rmail-edit-map
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nil
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;; Make a keymap that inherits text-mode-map.
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(setq rmail-edit-map (nconc (make-sparse-keymap) text-mode-map))
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(define-key rmail-edit-map "\C-c\C-c" 'rmail-cease-edit)
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(define-key rmail-edit-map "\C-c\C-]" 'rmail-abort-edit))
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;; Rmail Edit mode is suitable only for specially formatted data.
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(put 'rmail-edit-mode 'mode-class 'special)
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(defun rmail-edit-mode ()
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"Major mode for editing the contents of an RMAIL message.
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The editing commands are the same as in Text mode, together with two commands
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to return to regular RMAIL:
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* rmail-abort-edit cancels the changes
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you have made and returns to RMAIL
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* rmail-cease-edit makes them permanent.
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\\{rmail-edit-map}"
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(use-local-map rmail-edit-map)
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(setq major-mode 'rmail-edit-mode)
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(setq mode-name "RMAIL Edit")
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(if (boundp 'mode-line-modified)
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(setq mode-line-modified (default-value 'mode-line-modified))
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(setq mode-line-format (default-value 'mode-line-format)))
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(if (rmail-summary-exists)
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(save-excursion
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(set-buffer rmail-summary-buffer)
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(rmail-summary-disable)))
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(run-hooks 'text-mode-hook 'rmail-edit-mode-hook))
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;;;###autoload
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(defun rmail-edit-current-message ()
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"Edit the contents of this message."
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(interactive)
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(rmail-edit-mode)
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(make-local-variable 'rmail-old-text)
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(setq rmail-old-text (buffer-substring (point-min) (point-max)))
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(setq buffer-read-only nil)
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(force-mode-line-update)
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(if (and (eq (key-binding "\C-c\C-c") 'rmail-cease-edit)
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(eq (key-binding "\C-c\C-]") 'rmail-abort-edit))
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(message "Editing: Type C-c C-c to return to Rmail, C-c C-] to abort")
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(message "%s" (substitute-command-keys
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"Editing: Type \\[rmail-cease-edit] to return to Rmail, \\[rmail-abort-edit] to abort"))))
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(defun rmail-cease-edit ()
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"Finish editing message; switch back to Rmail proper."
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(interactive)
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(if (rmail-summary-exists)
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(save-excursion
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(set-buffer rmail-summary-buffer)
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(rmail-summary-enable)))
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;; Make sure buffer ends with a newline.
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(save-excursion
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(goto-char (point-max))
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(if (/= (preceding-char) ?\n)
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(insert "\n"))
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;; Adjust the marker that points to the end of this message.
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(set-marker (aref rmail-message-vector (1+ rmail-current-message))
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(point)))
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(let ((old rmail-old-text))
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(force-mode-line-update)
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(rmail-mode-1)
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(if (and (= (length old) (- (point-max) (point-min)))
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(string= old (buffer-substring (point-min) (point-max))))
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()
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(setq old nil)
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(rmail-set-attribute "edited" t)
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(if (boundp 'rmail-summary-vector)
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(progn
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(aset rmail-summary-vector (1- rmail-current-message) nil)
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(save-excursion
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(rmail-widen-to-current-msgbeg
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(function (lambda ()
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(forward-line 2)
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(if (looking-at "Summary-line: ")
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(let ((buffer-read-only nil))
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(delete-region (point)
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(progn (forward-line 1)
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(point))))))))
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(rmail-show-message))))))
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(setq buffer-read-only t))
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(defun rmail-abort-edit ()
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"Abort edit of current message; restore original contents."
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(interactive)
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(delete-region (point-min) (point-max))
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(insert rmail-old-text)
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(rmail-cease-edit)
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(rmail-highlight-headers))
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;;; rmailedit.el ends here
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