1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
;;; hsmail.el --- Support for Hyperbole buttons in mail composer: mail and mh-letter.
;; Copyright (C) 1991-1995 Free Software Foundation, Inc.
;; Developed with support from Motorola Inc.
;; Author: Bob Weiner, Brown U.
;; Maintainer: Mats Lidell <matsl@contactor.se>
;; Keywords: hypermedia, mail
;; This file is part of GNU Hyperbole.
;; GNU Hyperbole 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 Hyperbole 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, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
;;;
;;; Other required Elisp libraries
;;;
(require 'sendmail)
;;;
;;; Public variables
;;;
(defvar smail:comment '(format
"Comments: Hyperbole mail buttons accepted, v%s.\n"
hyperb:version)
"Default comment form to evaluate and add to outgoing mail.
Set to the empty string, \"\", for no comment.")
;;; Used by 'mail-send' in Emacs "sendmail.el".
(if (boundp 'send-mail-function)
(or (if (listp send-mail-function)
(if (equal (nth 2 send-mail-function) '(smail:widen))
nil
(error
"(hsmail): Set 'send-mail-function' to a symbol-name, not a list, before load.")))
(setq send-mail-function
(list 'lambda nil '(smail:widen) (list send-mail-function))))
(error "(hsmail): Install an Emacs \"sendmail.el\" which includes 'send-mail-function'."))
(if (fboundp 'mail-prefix-region)
;;
;; For compatibility with rsw-modified sendmail.el.
(defvar mail-yank-hook
(function
(lambda ()
;; Set off original message.
(mail-prefix-region (hypb:mark t) (point))))
"*Hook to run mail yank preface function.
Expects point and mark to be set to the region to preface.")
;;
;; Else for compatibility with Supercite and Emacs V19.
;; If you create your own yank hook, set this variable rather than
;; 'mail-yank-hook' from above.
(defvar mail-citation-hook nil
"*Hook for modifying a citation just inserted in the mail buffer.
Each hook function can find the citation between (point) and (mark t).
And each hook function should leave point and mark around the citation
text as modified.
If this hook is entirely empty (nil), a default action is taken
instead of no action.")
(defvar mail-yank-hooks '(mail-indent-citation)
"*Obsolete hook to run mail yank citation function. Use mail-citation-hook instead.
Expects point and mark to be set to the region to cite."))
;; For compatibility with Supercite and Emacs V19.
(defvar mail-yank-prefix nil
"*Prefix insert on lines of yanked message being replied to.
nil means use indentation.")
(defvar mail-indentation-spaces 3
"*Number of spaces to insert at the beginning of each cited line.")
;;;
;;; Public functions
;;;
(defun smail:comment-add (&optional comment-form)
"Adds a comment to the current outgoing message if Hyperbole has been loaded.
Optional COMMENT-FORM is evaluated to obtain the string to add to the
message. If not given, 'smail:comment' is evaluated by default."
(let ((comment (eval (or comment-form smail:comment))))
(if (and comment (featurep 'hsite))
(save-excursion
(goto-char (point-min))
(and (or (search-forward mail-header-separator nil t)
(if (eq major-mode 'mh-letter-mode)
(search-forward "\n--------" nil t)))
(not (search-backward comment nil t))
(progn (beginning-of-line) (insert comment)))))))
(defun smail:widen ()
"Widens outgoing mail buffer to include Hyperbole button data."
(if (fboundp 'mail+narrow) (mail+narrow) (widen)))
;; Overlay this function from V19 "sendmail.el" to work with V18.
(defun mail-indent-citation ()
"Modify text just inserted from a message to be cited.
The inserted text should be the region.
When this function returns, the region is again around the modified text.
Normally, indent each nonblank line `mail-indentation-spaces' spaces.
However, if `mail-yank-prefix' is non-nil, insert that prefix on each line."
(let ((start (point)))
;; Don't ever remove headers if user uses Supercite package,
;; since he can set an option in that package to do
;; the removal.
(or (hypb:supercite-p)
(mail-yank-clear-headers start (hypb:mark t)))
(if (null mail-yank-prefix)
(indent-rigidly start (hypb:mark t) mail-indentation-spaces)
(save-excursion
(goto-char start)
(while (< (point) (hypb:mark t))
(insert mail-yank-prefix)
(forward-line 1))))))
;; Overlay this function from "sendmail.el" to include Hyperbole button
;; data when yanking in a message and to highlight buttons if possible.
(defun mail-yank-original (arg)
"Insert the message being replied to, if any.
Puts point before the text and mark after.
Applies 'mail-citation-hook', 'mail-yank-hook' or 'mail-yank-hooks'
to text (in decreasing order of precedence).
Just \\[universal-argument] as argument means don't apply hooks
and don't delete any header fields.
If supercite is in use, header fields are never deleted.
Use (setq sc-nuke-mail-headers-p t) to have them removed."
(interactive "P")
(if mail-reply-buffer
(let ((start (point)) opoint)
(delete-windows-on mail-reply-buffer)
(unwind-protect
(progn
(save-excursion
(set-buffer mail-reply-buffer)
;; Might be called from newsreader before any
;; Hyperbole mail reader support has been autoloaded.
(cond ((fboundp 'rmail:msg-widen) (rmail:msg-widen))
((eq major-mode 'news-reply-mode) (widen))))
(setq opoint (point))
(insert-buffer mail-reply-buffer)
(hmail:msg-narrow)
(if (fboundp 'hproperty:but-create) (hproperty:but-create))
(if (consp arg)
nil
;; Don't ever remove headers if user uses Supercite package,
;; since he can set an option in that package to do
;; the removal.
(or (hypb:supercite-p)
(mail-yank-clear-headers
start (marker-position (hypb:mark-marker t))))
(let ((mail-indentation-spaces (if arg (prefix-numeric-value arg)
mail-indentation-spaces)))
(cond ((and (boundp 'mail-citation-hook) mail-citation-hook)
(run-hooks 'mail-citation-hook))
((and (boundp 'mail-yank-hook) mail-yank-hook)
(run-hooks 'mail-yank-hook))
((and (boundp 'mail-yank-hooks) mail-yank-hooks)
(run-hooks 'mail-yank-hooks))
(t (mail-indent-citation))))
(goto-char (min (point-max) (hypb:mark t)))
(set-mark opoint)
(delete-region (point) ; Remove trailing blank lines.
(progn (re-search-backward "[^ \^I\^L\n]")
(end-of-line)
(point))))
(or (eq major-mode 'news-reply-mode)
;; This is like exchange-point-and-mark, but doesn't activate the mark.
;; It is cleaner to avoid activation, even though the command
;; loop would deactivate the mark because we inserted text.
(goto-char (prog1 (hypb:mark t)
(set-marker (hypb:mark-marker t)
(point) (current-buffer)))))
(if (not (eolp)) (insert ?\n))
)
(save-excursion
(set-buffer mail-reply-buffer)
(hmail:msg-narrow))))))
;;;
;;; Private variables
;;;
;;; Try to setup comment addition as the first element of these hooks.
(if (fboundp 'add-hook)
(progn
(add-hook 'mail-setup-hook 'smail:comment-add)
(add-hook 'mh-letter-mode-hook 'smail:comment-add))
(var:append 'mail-setup-hook '(smail:comment-add))
(var:append 'mh-letter-mode-hook '(smail:comment-add)))
(provide 'hsmail)
;;; hsmail.el ends here
|
