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1.1 root 1: ;; "RMAIL edit mode" Edit the current message.
2: ;; Copyright (C) 1985 Free Software Foundation, Inc.
3:
4: ;; This file is part of GNU Emacs.
5:
6: ;; GNU Emacs is free software; you can redistribute it and/or modify
7: ;; it under the terms of the GNU General Public License as published by
8: ;; the Free Software Foundation; either version 1, or (at your option)
9: ;; any later version.
10:
11: ;; GNU Emacs is distributed in the hope that it will be useful,
12: ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13: ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: ;; GNU General Public License for more details.
15:
16: ;; You should have received a copy of the GNU General Public License
17: ;; along with GNU Emacs; see the file COPYING. If not, write to
18: ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
19:
20:
21: (require 'rmail)
22:
23: (defvar rmail-edit-map nil)
24: (if rmail-edit-map
25: nil
26: (setq rmail-edit-map (copy-keymap text-mode-map))
27: (define-key rmail-edit-map "\C-c\C-c" 'rmail-cease-edit)
28: (define-key rmail-edit-map "\C-c\C-]" 'rmail-abort-edit))
29:
30: ;; Rmail Edit mode is suitable only for specially formatted data.
31: (put 'rmail-edit-mode 'mode-class 'special)
32:
33: (defun rmail-edit-mode ()
34: "Major mode for editing the contents of an RMAIL message.
35: The editing commands are the same as in Text mode, together with two commands
36: to return to regular RMAIL:
37: * rmail-abort-edit cancels the changes
38: you have made and returns to RMAIL
39: * rmail-cease-edit makes them permanent.
40: \\{rmail-edit-map}"
41: (use-local-map rmail-edit-map)
42: (setq major-mode 'rmail-edit-mode)
43: (setq mode-name "RMAIL Edit")
44: (if (boundp 'mode-line-modified)
45: (setq mode-line-modified (default-value 'mode-line-modified))
46: (setq mode-line-format (default-value 'mode-line-format)))
47: (run-hooks 'text-mode-hook 'rmail-edit-mode-hook))
48:
49: (defun rmail-edit-current-message ()
50: "Edit the contents of this message."
51: (interactive)
52: (rmail-edit-mode)
53: (make-local-variable 'rmail-old-text)
54: (setq rmail-old-text (buffer-substring (point-min) (point-max)))
55: (setq buffer-read-only nil)
56: (set-buffer-modified-p (buffer-modified-p))
57: ;; Make mode line update.
58: (if (and (eq (key-binding "\C-c\C-c") 'rmail-cease-edit)
59: (eq (key-binding "\C-c\C-]") 'rmail-abort-edit))
60: (message "Editing: Type C-c C-c to return to Rmail, C-c C-] to abort")
61: (message (substitute-command-keys
62: "Editing: Type \\[rmail-cease-edit] to return to Rmail, \\[rmail-abort-edit] to abort"))))
63:
64: (defun rmail-cease-edit ()
65: "Finish editing message; switch back to Rmail proper."
66: (interactive)
67: ;; Make sure buffer ends with a newline.
68: (save-excursion
69: (goto-char (point-max))
70: (if (/= (preceding-char) ?\n)
71: (insert "\n"))
72: ;; Adjust the marker that points to the end of this message.
73: (set-marker (aref rmail-message-vector (1+ rmail-current-message))
74: (point)))
75: (let ((old rmail-old-text))
76: ;; Update the mode line.
77: (set-buffer-modified-p (buffer-modified-p))
78: (rmail-mode-1)
79: (if (and (= (length old) (- (point-max) (point-min)))
80: (string= old (buffer-substring (point-min) (point-max))))
81: ()
82: (setq old nil)
83: (rmail-set-attribute "edited" t)
84: (if (boundp 'rmail-summary-vector)
85: (progn
86: (aset rmail-summary-vector (1- rmail-current-message) nil)
87: (save-excursion
88: (rmail-widen-to-current-msgbeg
89: (function (lambda ()
90: (forward-line 2)
91: (if (looking-at "Summary-line: ")
92: (let ((buffer-read-only nil))
93: (delete-region (point)
94: (progn (forward-line 1)
95: (point))))))))
96: (rmail-show-message))))))
97: (setq buffer-read-only t))
98:
99: (defun rmail-abort-edit ()
100: "Abort edit of current message; restore original contents."
101: (interactive)
102: (delete-region (point-min) (point-max))
103: (insert rmail-old-text)
104: (rmail-cease-edit))
105:
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