|
0
|
1 ;;; mh-utils.el --- mh-e code needed for both sending and reading
|
|
|
2 ;; Time-stamp: <95/10/22 17:58:16 gildea>
|
|
|
3
|
|
|
4 ;; Copyright (C) 1993, 1995 Free Software Foundation, Inc.
|
|
|
5
|
|
|
6 ;; This file is part of mh-e, part of GNU Emacs.
|
|
|
7
|
|
|
8 ;; GNU Emacs is free software; you can redistribute it and/or modify
|
|
|
9 ;; it under the terms of the GNU General Public License as published by
|
|
|
10 ;; the Free Software Foundation; either version 2, or (at your option)
|
|
|
11 ;; any later version.
|
|
|
12
|
|
|
13 ;; GNU Emacs is distributed in the hope that it will be useful,
|
|
|
14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
16 ;; GNU General Public License for more details.
|
|
|
17
|
|
|
18 ;; You should have received a copy of the GNU General Public License
|
|
2
|
19 ;; along with XEmacs; see the file COPYING. If not, write to the
|
|
|
20 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
21 ;; Boston, MA 02111-1307, USA.
|
|
|
22
|
|
|
23 ;;; Synched up with: FSF 19.34.
|
|
0
|
24
|
|
|
25 ;;; Commentary:
|
|
|
26
|
|
|
27 ;; Internal support for mh-e package.
|
|
|
28
|
|
|
29 ;;; Change Log:
|
|
|
30
|
|
2
|
31 ;; $Id: mh-utils.el,v 1.1.1.2 1996/12/18 03:46:49 steve Exp $
|
|
0
|
32
|
|
|
33 ;;; Code:
|
|
|
34
|
|
|
35 ;;; Set for local environment:
|
|
|
36 ;;; mh-progs and mh-lib used to be set in paths.el, which tried to
|
|
|
37 ;;; figure out at build time which of several possible directories MH
|
|
|
38 ;;; was installed into. But if you installed MH after building Emacs,
|
|
|
39 ;;; this would almost certainly be wrong, so now we do it at run time.
|
|
|
40
|
|
|
41 (defvar mh-progs nil
|
|
|
42 "Directory containing MH commands, such as inc, repl, and rmm.")
|
|
|
43
|
|
|
44 (defvar mh-lib nil
|
|
|
45 "Directory containing the MH library.
|
|
|
46 This directory contains, among other things,
|
|
|
47 the mhl program and the components file.")
|
|
|
48
|
|
|
49 ;;;###autoload
|
|
|
50 (put 'mh-progs 'risky-local-variable t)
|
|
|
51 ;;;###autoload
|
|
|
52 (put 'mh-lib 'risky-local-variable t)
|
|
|
53
|
|
|
54 ;;; User preferences:
|
|
|
55
|
|
|
56 (defvar mh-auto-folder-collect t
|
|
|
57 "*Whether to start collecting MH folder names immediately in the background.
|
|
|
58 Non-nil means start a background process collecting the names of all
|
|
|
59 folders as soon as mh-e is loaded.")
|
|
|
60
|
|
|
61 (defvar mh-recursive-folders nil
|
|
|
62 "*If non-nil, then commands which operate on folders do so recursively.")
|
|
|
63
|
|
|
64 (defvar mh-clean-message-header nil
|
|
|
65 "*Non-nil means clean headers of messages that are displayed or inserted.
|
|
|
66 The variables `mh-visible-headers' and `mh-invisible-headers' control what
|
|
|
67 is removed.")
|
|
|
68
|
|
|
69 (defvar mh-visible-headers nil
|
|
|
70 "*If non-nil, contains a regexp specifying the headers to keep when cleaning.
|
|
|
71 Only used if `mh-clean-message-header' is non-nil. Setting this variable
|
|
|
72 overrides `mh-invisible-headers'.")
|
|
|
73
|
|
|
74 (defvar mh-invisible-headers
|
|
|
75 "^Received: \\|^Message-Id: \\|^Remailed-\\|^Via: \\|^Mail-from: \\|^Return-Path: \\|^Delivery-Date: \\|^In-Reply-To: \\|^Resent-"
|
|
|
76 "Regexp matching lines in a message header that are not to be shown.
|
|
|
77 If `mh-visible-headers' is non-nil, it is used instead to specify what
|
|
|
78 to keep.")
|
|
|
79
|
|
|
80 (defvar mh-bury-show-buffer t
|
|
|
81 "*Non-nil means that the displayed show buffer for a folder is buried.")
|
|
|
82
|
|
|
83 (defvar mh-summary-height 4
|
|
|
84 "*Number of lines in MH-Folder window (including the mode line).")
|
|
|
85
|
|
|
86 (defvar mh-msg-number-regexp "^ *\\([0-9]+\\)"
|
|
|
87 "Regexp to find the number of a message in a scan line.
|
|
|
88 The message's number must be surrounded with \\( \\)")
|
|
|
89
|
|
|
90 (defvar mh-msg-search-regexp "^[^0-9]*%d[^0-9]"
|
|
|
91 "Format string containing a regexp matching the scan listing for a message.
|
|
|
92 The desired message's number will be an argument to format.")
|
|
|
93
|
|
|
94 (defvar mhl-formfile nil
|
|
|
95 "*Name of format file to be used by mhl to show and print messages.
|
|
|
96 A value of T means use the default format file.
|
|
|
97 Nil means don't use mhl to format messages when showing; mhl is still used,
|
|
|
98 with the default format file, to format messages when printing them.
|
|
|
99 The format used should specify a non-zero value for overflowoffset so
|
|
|
100 the message continues to conform to RFC 822 and mh-e can parse the headers.")
|
|
|
101 (put 'mhl-formfile 'info-file "mh-e")
|
|
|
102
|
|
|
103 (defvar mh-default-folder-for-message-function nil
|
|
|
104 "Function to select a default folder for refiling or Fcc.
|
|
|
105 If set to a function, that function is called with no arguments by
|
|
|
106 `\\[mh-refile-msg]' and `\\[mh-to-fcc]' to get a default when
|
|
|
107 prompting the user for a folder. The function is called from within a
|
|
|
108 save-excursion, with point at the start of the message. It should
|
|
|
109 return the folder to offer as the refile or Fcc folder, as a string
|
|
|
110 with a leading `+' sign. It can also return an empty string to use no
|
|
|
111 default, or NIL to calculate the default the usual way.
|
|
|
112 NOTE: This variable is not an ordinary hook;
|
|
|
113 It may not be a list of functions.")
|
|
|
114
|
|
|
115 (defvar mh-find-path-hook nil
|
|
|
116 "Invoked by mh-find-path while reading the user's MH profile.")
|
|
|
117
|
|
|
118 (defvar mh-folder-list-change-hook nil
|
|
|
119 "Invoked whenever the cached folder list `mh-folder-list' is changed.")
|
|
|
120
|
|
|
121 (defvar mh-show-buffer-mode-line-buffer-id "{show-%s} %d"
|
|
|
122 "Format string to produce `mode-line-buffer-identification' for show buffers.
|
|
|
123 First argument is folder name. Second is message number.")
|
|
|
124
|
|
|
125 (defvar mh-cmd-note 4
|
|
|
126 "Offset to insert notation.")
|
|
|
127
|
|
|
128 (defvar mh-note-seq "%"
|
|
|
129 "String whose first character is used to notate messages in a sequence.")
|
|
|
130
|
|
|
131 ;;; Internal bookkeeping variables:
|
|
|
132
|
|
|
133 ;; The value of `mh-folder-list-change-hook' is called whenever
|
|
|
134 ;; mh-folder-list variable is set.
|
|
|
135 (defvar mh-folder-list nil) ;List of folder names for completion.
|
|
|
136
|
|
|
137 ;; Cached value of the `Path:' component in the user's MH profile.
|
|
|
138 (defvar mh-user-path nil) ;User's mail folder directory.
|
|
|
139
|
|
|
140 ;; An mh-draft-folder of NIL means do not use a draft folder.
|
|
|
141 ;; Cached value of the `Draft-Folder:' component in the user's MH profile.
|
|
|
142 (defvar mh-draft-folder nil) ;Name of folder containing draft messages.
|
|
|
143
|
|
|
144 ;; Cached value of the `Unseen-Sequence:' component in the user's MH profile.
|
|
|
145 (defvar mh-unseen-seq nil) ;Name of the Unseen sequence.
|
|
|
146
|
|
|
147 ;; Cached value of the `Previous-Sequence:' component in the user's MH profile.
|
|
|
148 (defvar mh-previous-seq nil) ;Name of the Previous sequence.
|
|
|
149
|
|
|
150 ;; Cached value of the `Inbox:' component in the user's MH profile,
|
|
|
151 ;; or "+inbox" if no such component.
|
|
|
152 (defvar mh-inbox nil) ;Name of the Inbox folder.
|
|
|
153
|
|
|
154 (defconst mh-temp-buffer " *mh-temp*") ;Name of mh-e scratch buffer.
|
|
|
155
|
|
|
156 (defvar mh-previous-window-config nil) ;Window configuration before mh-e command.
|
|
|
157
|
|
|
158 ;;; Internal variables local to a folder.
|
|
|
159
|
|
|
160 (defvar mh-current-folder nil) ;Name of current folder, a string.
|
|
|
161
|
|
|
162 (defvar mh-show-buffer nil) ;Buffer that displays message for this folder.
|
|
|
163
|
|
|
164 (defvar mh-folder-filename nil) ;Full path of directory for this folder.
|
|
|
165
|
|
|
166 (defvar mh-msg-count nil) ;Number of msgs in buffer.
|
|
|
167
|
|
|
168 (defvar mh-showing nil) ;If non-nil, show the message in a separate window.
|
|
|
169
|
|
|
170 ;;; This holds a documentation string used by describe-mode.
|
|
|
171 (defun mh-showing ()
|
|
|
172 "When moving to a new message in the Folder window,
|
|
|
173 also show it in a separate Show window."
|
|
|
174 nil)
|
|
|
175
|
|
|
176 (defvar mh-seq-list nil) ;The sequences of this folder. An alist of (seq . msgs).
|
|
|
177
|
|
|
178 (defvar mh-seen-list nil) ;List of displayed messages to be removed from the Unseen sequence.
|
|
|
179
|
|
|
180 ;; If non-nil, show buffer contains message with all headers.
|
|
|
181 ;; If nil, show buffer contains message processed normally.
|
|
|
182 (defvar mh-showing-with-headers nil) ;Showing message with headers or normally.
|
|
|
183
|
|
|
184
|
|
|
185 ;;; mh-e macros
|
|
|
186
|
|
|
187 (defmacro with-mh-folder-updating (save-modification-flag-p &rest body)
|
|
|
188 ;; Format is (with-mh-folder-updating (SAVE-MODIFICATION-FLAG-P) &body BODY).
|
|
|
189 ;; Execute BODY, which can modify the folder buffer without having to
|
|
|
190 ;; worry about file locking or the read-only flag, and return its result.
|
|
|
191 ;; If SAVE-MODIFICATION-FLAG-P is non-nil, the buffer's modification
|
|
|
192 ;; flag is unchanged, otherwise it is cleared.
|
|
|
193 (setq save-modification-flag-p (car save-modification-flag-p)) ; CL style
|
|
|
194 (` (prog1
|
|
|
195 (let ((mh-folder-updating-mod-flag (buffer-modified-p))
|
|
|
196 (buffer-read-only nil)
|
|
|
197 (buffer-file-name nil)) ;don't let the buffer get locked
|
|
|
198 (prog1
|
|
|
199 (progn
|
|
|
200 (,@ body))
|
|
|
201 (mh-set-folder-modified-p mh-folder-updating-mod-flag)))
|
|
|
202 (,@ (if (not save-modification-flag-p)
|
|
|
203 '((mh-set-folder-modified-p nil)))))))
|
|
|
204
|
|
|
205 (put 'with-mh-folder-updating 'lisp-indent-hook 1)
|
|
|
206
|
|
|
207 (defmacro mh-in-show-buffer (show-buffer &rest body)
|
|
|
208 ;; Format is (mh-in-show-buffer (SHOW-BUFFER) &body BODY).
|
|
|
209 ;; Display buffer SHOW-BUFFER in other window and execute BODY in it.
|
|
|
210 ;; Stronger than save-excursion, weaker than save-window-excursion.
|
|
|
211 (setq show-buffer (car show-buffer)) ; CL style
|
|
|
212 (` (let ((mh-in-show-buffer-saved-window (selected-window)))
|
|
|
213 (switch-to-buffer-other-window (, show-buffer))
|
|
|
214 (if mh-bury-show-buffer (bury-buffer (current-buffer)))
|
|
|
215 (unwind-protect
|
|
|
216 (progn
|
|
|
217 (,@ body))
|
|
|
218 (select-window mh-in-show-buffer-saved-window)))))
|
|
|
219
|
|
|
220 (put 'mh-in-show-buffer 'lisp-indent-hook 1)
|
|
|
221
|
|
|
222 (defmacro mh-make-seq (name msgs) (list 'cons name msgs))
|
|
|
223
|
|
|
224 (defmacro mh-seq-name (pair) (list 'car pair))
|
|
|
225
|
|
|
226 (defmacro mh-seq-msgs (pair) (list 'cdr pair))
|
|
|
227
|
|
|
228
|
|
|
229 ;;; Ensure new buffers won't get this mode if default-major-mode is nil.
|
|
|
230 (put 'mh-show-mode 'mode-class 'special)
|
|
|
231
|
|
|
232 (defun mh-show-mode ()
|
|
|
233 "Major mode for showing messages in mh-e.
|
|
|
234 The value of mh-show-mode-hook is called when a new message is displayed."
|
|
|
235 (kill-all-local-variables)
|
|
|
236 (setq major-mode 'mh-show-mode)
|
|
|
237 (mh-set-mode-name "MH-Show")
|
|
|
238 (run-hooks 'mh-show-mode-hook))
|
|
|
239
|
|
|
240
|
|
|
241 (defun mh-maybe-show (&optional msg)
|
|
|
242 ;; If in showing mode, then display the message pointed to by the cursor.
|
|
|
243 (if mh-showing (mh-show msg)))
|
|
|
244
|
|
|
245 (defun mh-show (&optional message)
|
|
|
246 "Show MESSAGE (default: message at cursor).
|
|
|
247 Force a two-window display with the folder window on top (size
|
|
|
248 mh-summary-height) and the show buffer below it.
|
|
|
249 If the message is already visible, display the start of the message.
|
|
|
250
|
|
|
251 Display of the message is controlled by setting the variables
|
|
|
252 `mh-clean-message-header' and `mhl-formfile'. The default behavior is
|
|
|
253 to scroll uninteresting headers off the top of the window.
|
|
|
254 Type \"\\[mh-header-display]\" to see the message with all its headers."
|
|
|
255 (interactive)
|
|
|
256 (and mh-showing-with-headers
|
|
|
257 (or mhl-formfile mh-clean-message-header)
|
|
|
258 (mh-invalidate-show-buffer))
|
|
|
259 (mh-show-msg message))
|
|
|
260
|
|
|
261
|
|
|
262 (defun mh-show-msg (msg)
|
|
|
263 (if (not msg)
|
|
|
264 (setq msg (mh-get-msg-num t)))
|
|
|
265 (setq mh-showing t)
|
|
|
266 (let ((folder mh-current-folder)
|
|
|
267 (clean-message-header mh-clean-message-header)
|
|
|
268 (show-window (get-buffer-window mh-show-buffer)))
|
|
|
269 (if (not (eql (next-window (minibuffer-window)) (selected-window)))
|
|
|
270 (delete-other-windows)) ; force ourself to the top window
|
|
|
271 (mh-in-show-buffer (mh-show-buffer)
|
|
|
272 (if (and show-window
|
|
|
273 (equal (mh-msg-filename msg folder) buffer-file-name))
|
|
|
274 (progn ;just back up to start
|
|
|
275 (goto-char (point-min))
|
|
|
276 (if (not clean-message-header)
|
|
|
277 (mh-start-of-uncleaned-message)))
|
|
|
278 (mh-display-msg msg folder))))
|
|
|
279 (if (not (= (1+ (window-height)) (screen-height))) ;not horizontally split
|
|
|
280 (shrink-window (- (window-height) mh-summary-height)))
|
|
|
281 (mh-recenter nil)
|
|
|
282 (if (not (memq msg mh-seen-list)) (setq mh-seen-list (cons msg mh-seen-list)))
|
|
|
283 (run-hooks 'mh-show-hook))
|
|
|
284
|
|
|
285
|
|
|
286 (defun mh-display-msg (msg-num folder)
|
|
|
287 ;; Display message NUMBER of FOLDER.
|
|
|
288 ;; Sets the current buffer to the show buffer.
|
|
|
289 (set-buffer folder)
|
|
|
290 ;; Bind variables in folder buffer in case they are local
|
|
|
291 (let ((formfile mhl-formfile)
|
|
|
292 (clean-message-header mh-clean-message-header)
|
|
|
293 (invisible-headers mh-invisible-headers)
|
|
|
294 (visible-headers mh-visible-headers)
|
|
|
295 (msg-filename (mh-msg-filename msg-num))
|
|
|
296 (show-buffer mh-show-buffer))
|
|
|
297 (if (not (file-exists-p msg-filename))
|
|
|
298 (error "Message %d does not exist" msg-num))
|
|
|
299 (set-buffer show-buffer)
|
|
|
300 (cond ((not (equal msg-filename buffer-file-name))
|
|
|
301 (mh-unvisit-file)
|
|
|
302 (erase-buffer)
|
|
|
303 ;; Changing contents, so this hook needs to be reinitialized.
|
|
|
304 ;; pgp.el uses this.
|
|
|
305 (if (boundp 'write-contents-hooks) ;Emacs 19
|
|
2
|
306 (kill-local-variable 'write-contents-hooks))
|
|
0
|
307 (if formfile
|
|
|
308 (mh-exec-lib-cmd-output "mhl" "-nobell" "-noclear"
|
|
|
309 (if (stringp formfile)
|
|
|
310 (list "-form" formfile))
|
|
|
311 msg-filename)
|
|
|
312 (insert-file-contents msg-filename))
|
|
|
313 (goto-char (point-min))
|
|
|
314 (cond (clean-message-header
|
|
|
315 (mh-clean-msg-header (point-min)
|
|
|
316 invisible-headers
|
|
|
317 visible-headers)
|
|
|
318 (goto-char (point-min)))
|
|
|
319 (t
|
|
|
320 (mh-start-of-uncleaned-message)))
|
|
|
321 ;; the parts of visiting we want to do (no locking)
|
|
|
322 (or (eq buffer-undo-list t) ;don't save undo info for prev msgs
|
|
|
323 (setq buffer-undo-list nil))
|
|
|
324 (set-buffer-modified-p nil)
|
|
|
325 (set-buffer-auto-saved)
|
|
|
326 ;; the parts of set-visited-file-name we want to do (no locking)
|
|
|
327 (setq buffer-file-name msg-filename)
|
|
|
328 (setq buffer-backed-up nil)
|
|
|
329 (auto-save-mode 1)
|
|
|
330 (set-mark nil)
|
|
|
331 (mh-show-mode)
|
|
|
332 (setq mode-line-buffer-identification
|
|
|
333 (list (format mh-show-buffer-mode-line-buffer-id
|
|
|
334 folder msg-num)))
|
|
|
335 (set-buffer folder)
|
|
|
336 (setq mh-showing-with-headers nil)))))
|
|
|
337
|
|
|
338 (defun mh-start-of-uncleaned-message ()
|
|
|
339 ;; position uninteresting headers off the top of the window
|
|
|
340 (let ((case-fold-search t))
|
|
|
341 (re-search-forward
|
|
|
342 "^To:\\|^Cc:\\|^From:\\|^Subject:\\|^Date:" nil t)
|
|
|
343 (beginning-of-line)
|
|
|
344 (mh-recenter 0)))
|
|
|
345
|
|
|
346
|
|
|
347 (defun mh-invalidate-show-buffer ()
|
|
|
348 ;; Invalidate the show buffer so we must update it to use it.
|
|
|
349 (if (get-buffer mh-show-buffer)
|
|
|
350 (save-excursion
|
|
|
351 (set-buffer mh-show-buffer)
|
|
|
352 (mh-unvisit-file))))
|
|
|
353
|
|
|
354
|
|
|
355 (defun mh-unvisit-file ()
|
|
|
356 ;; Separate current buffer from the message file it was visiting.
|
|
|
357 (or (not (buffer-modified-p))
|
|
|
358 (null buffer-file-name) ;we've been here before
|
|
|
359 (yes-or-no-p (format "Message %s modified; flush changes? "
|
|
|
360 (file-name-nondirectory buffer-file-name)))
|
|
|
361 (error "Flushing changes not confirmed"))
|
|
|
362 (clear-visited-file-modtime)
|
|
|
363 (unlock-buffer)
|
|
|
364 (setq buffer-file-name nil))
|
|
|
365
|
|
|
366
|
|
|
367 (defun mh-get-msg-num (error-if-no-message)
|
|
|
368 ;; Return the message number of the displayed message. If the argument
|
|
|
369 ;; ERROR-IF-NO-MESSAGE is non-nil, then complain if the cursor is not
|
|
|
370 ;; pointing to a message.
|
|
|
371 (save-excursion
|
|
|
372 (beginning-of-line)
|
|
|
373 (cond ((looking-at mh-msg-number-regexp)
|
|
|
374 (string-to-int (buffer-substring (match-beginning 1)
|
|
|
375 (match-end 1))))
|
|
|
376 (error-if-no-message
|
|
|
377 (error "Cursor not pointing to message"))
|
|
|
378 (t nil))))
|
|
|
379
|
|
|
380
|
|
|
381 (defun mh-msg-filename (msg &optional folder)
|
|
|
382 ;; Return the file name of MESSAGE in FOLDER (default current folder).
|
|
|
383 (expand-file-name (int-to-string msg)
|
|
|
384 (if folder
|
|
|
385 (mh-expand-file-name folder)
|
|
|
386 mh-folder-filename)))
|
|
|
387
|
|
|
388
|
|
|
389 (defun mh-clean-msg-header (start invisible-headers visible-headers)
|
|
|
390 ;; Flush extraneous lines in a message header, from the given POINT to the
|
|
|
391 ;; end of the message header. If VISIBLE-HEADERS is non-nil, it contains a
|
|
|
392 ;; regular expression specifying the lines to display, otherwise
|
|
|
393 ;; INVISIBLE-HEADERS contains a regular expression specifying lines to
|
|
|
394 ;; delete from the header.
|
|
|
395 (let ((case-fold-search t))
|
|
|
396 (save-restriction
|
|
|
397 (goto-char start)
|
|
|
398 (if (search-forward "\n\n" nil 'move)
|
|
|
399 (backward-char 1))
|
|
|
400 (narrow-to-region start (point))
|
|
|
401 (goto-char (point-min))
|
|
|
402 (if visible-headers
|
|
|
403 (while (< (point) (point-max))
|
|
|
404 (cond ((looking-at visible-headers)
|
|
|
405 (forward-line 1)
|
|
|
406 (while (looking-at "[ \t]") (forward-line 1)))
|
|
|
407 (t
|
|
|
408 (mh-delete-line 1)
|
|
|
409 (while (looking-at "[ \t]")
|
|
|
410 (mh-delete-line 1)))))
|
|
|
411 (while (re-search-forward invisible-headers nil t)
|
|
|
412 (beginning-of-line)
|
|
|
413 (mh-delete-line 1)
|
|
|
414 (while (looking-at "[ \t]")
|
|
|
415 (mh-delete-line 1))))
|
|
|
416 (unlock-buffer))))
|
|
|
417
|
|
|
418
|
|
|
419 (defun mh-recenter (arg)
|
|
|
420 ;; Like recenter but with two improvements: nil arg means recenter,
|
|
|
421 ;; and only does anything if the current buffer is in the selected
|
|
|
422 ;; window. (Commands like save-some-buffers can make this false.)
|
|
|
423 (if (eql (get-buffer-window (current-buffer))
|
|
|
424 (selected-window))
|
|
|
425 (recenter (if arg arg '(t)))))
|
|
|
426
|
|
|
427
|
|
|
428 (defun mh-delete-line (lines)
|
|
|
429 ;; Delete version of kill-line.
|
|
|
430 (delete-region (point) (progn (forward-line lines) (point))))
|
|
|
431
|
|
|
432
|
|
|
433 (defun mh-notate (msg notation offset)
|
|
|
434 ;; Marks MESSAGE with the character NOTATION at position OFFSET.
|
|
|
435 ;; Null MESSAGE means the message that the cursor points to.
|
|
|
436 (save-excursion
|
|
|
437 (if (or (null msg)
|
|
|
438 (mh-goto-msg msg t t))
|
|
|
439 (with-mh-folder-updating (t)
|
|
|
440 (beginning-of-line)
|
|
|
441 (forward-char offset)
|
|
|
442 (delete-char 1)
|
|
|
443 (insert notation)))))
|
|
|
444
|
|
|
445
|
|
|
446 (defun mh-find-msg-get-num (step)
|
|
|
447 ;; Return the message number of the message on the current scan line
|
|
|
448 ;; or one nearby. Jumps over non-message lines, such as inc errors.
|
|
|
449 ;; STEP tells whether to search forward or backward if we have to search.
|
|
|
450 (or (mh-get-msg-num nil)
|
|
|
451 (let ((msg-num nil)
|
|
|
452 (nreverses 0))
|
|
|
453 (while (and (not msg-num)
|
|
|
454 (< nreverses 2))
|
|
|
455 (cond ((eobp)
|
|
|
456 (setq step -1)
|
|
|
457 (setq nreverses (1+ nreverses)))
|
|
|
458 ((bobp)
|
|
|
459 (setq step 1)
|
|
|
460 (setq nreverses (1+ nreverses))))
|
|
|
461 (forward-line step)
|
|
|
462 (setq msg-num (mh-get-msg-num nil)))
|
|
|
463 msg-num)))
|
|
|
464
|
|
|
465 (defun mh-goto-msg (number &optional no-error-if-no-message dont-show)
|
|
|
466 "Position the cursor at message NUMBER.
|
|
|
467 Optional non-nil second argument means return nil instead of
|
|
|
468 signaling an error if message does not exist; in this case,
|
|
|
469 the cursor is positioned near where the message would have been.
|
|
|
470 Non-nil third argument means not to show the message."
|
|
|
471 (interactive "NGo to message: ")
|
|
|
472 (setq number (prefix-numeric-value number)) ;Emacs 19
|
|
|
473 ;; This basic routine tries to be as fast as possible,
|
|
|
474 ;; using a binary search and minimal regexps.
|
|
|
475 (let ((cur-msg (mh-find-msg-get-num -1))
|
|
|
476 (jump-size mh-msg-count))
|
|
|
477 (while (and (> jump-size 1)
|
|
|
478 cur-msg
|
|
|
479 (not (eq cur-msg number)))
|
|
|
480 (cond ((< cur-msg number)
|
|
|
481 (setq jump-size (min (- number cur-msg)
|
|
|
482 (ash (1+ jump-size) -1)))
|
|
|
483 (forward-line jump-size)
|
|
|
484 (setq cur-msg (mh-find-msg-get-num 1)))
|
|
|
485 (t
|
|
|
486 (setq jump-size (min (- cur-msg number)
|
|
|
487 (ash (1+ jump-size) -1)))
|
|
|
488 (forward-line (- jump-size))
|
|
|
489 (setq cur-msg (mh-find-msg-get-num -1)))))
|
|
|
490 (if (eq cur-msg number)
|
|
|
491 (progn
|
|
|
492 (beginning-of-line)
|
|
|
493 (or dont-show
|
|
|
494 (mh-maybe-show number)
|
|
|
495 t))
|
|
|
496 (if (not no-error-if-no-message)
|
|
|
497 (error "No message %d" number)))))
|
|
|
498
|
|
|
499
|
|
|
500 (defun mh-msg-search-pat (n)
|
|
|
501 ;; Return a search pattern for message N in the scan listing.
|
|
|
502 (format mh-msg-search-regexp n))
|
|
|
503
|
|
|
504
|
|
|
505 (defun mh-get-profile-field (field)
|
|
|
506 ;; Find and return the value of FIELD in the current buffer.
|
|
|
507 ;; Returns NIL if the field is not in the buffer.
|
|
|
508 (let ((case-fold-search t))
|
|
|
509 (goto-char (point-min))
|
|
|
510 (cond ((not (re-search-forward (format "^%s" field) nil t)) nil)
|
|
|
511 ((looking-at "[\t ]*$") nil)
|
|
|
512 (t
|
|
|
513 (re-search-forward "[\t ]*\\([^\t \n].*\\)$" nil t)
|
|
|
514 (let ((start (match-beginning 1)))
|
|
|
515 (end-of-line)
|
|
|
516 (buffer-substring start (point)))))))
|
|
|
517
|
|
2
|
518 (defvar mail-user-agent 'mh-e-user-agent) ;from reporter.el 3.2
|
|
0
|
519
|
|
|
520 (defun mh-find-path ()
|
|
|
521 ;; Set mh-progs and mh-lib.
|
|
|
522 ;; (This step is necessary if MH was installed after this Emacs was dumped.)
|
|
|
523 ;; From profile file, set mh-user-path, mh-draft-folder,
|
|
|
524 ;; mh-unseen-seq, mh-previous-seq, mh-inbox.
|
|
|
525 (mh-find-progs)
|
|
|
526 (save-excursion
|
|
|
527 ;; Be sure profile is fully expanded before switching buffers
|
|
|
528 (let ((profile (expand-file-name (or (getenv "MH") "~/.mh_profile"))))
|
|
|
529 (set-buffer (get-buffer-create mh-temp-buffer))
|
|
|
530 (setq buffer-offer-save nil) ;for people who set default to t
|
|
|
531 (erase-buffer)
|
|
|
532 (condition-case err
|
|
|
533 (insert-file-contents profile)
|
|
|
534 (file-error
|
|
|
535 (mh-install profile err)))
|
|
|
536 (setq mh-user-path (mh-get-profile-field "Path:"))
|
|
|
537 (if (not mh-user-path)
|
|
|
538 (setq mh-user-path "Mail"))
|
|
|
539 (setq mh-user-path
|
|
|
540 (file-name-as-directory
|
|
|
541 (expand-file-name mh-user-path (expand-file-name "~"))))
|
|
|
542 (setq mh-draft-folder (mh-get-profile-field "Draft-Folder:"))
|
|
|
543 (if mh-draft-folder
|
|
|
544 (progn
|
|
|
545 (if (not (mh-folder-name-p mh-draft-folder))
|
|
|
546 (setq mh-draft-folder (format "+%s" mh-draft-folder)))
|
|
|
547 (if (not (file-exists-p (mh-expand-file-name mh-draft-folder)))
|
|
|
548 (error "Draft folder \"%s\" not found. Create it and try again."
|
|
|
549 (mh-expand-file-name mh-draft-folder)))))
|
|
|
550 (setq mh-inbox (mh-get-profile-field "Inbox:"))
|
|
|
551 (cond ((not mh-inbox)
|
|
|
552 (setq mh-inbox "+inbox"))
|
|
|
553 ((not (mh-folder-name-p mh-inbox))
|
|
|
554 (setq mh-inbox (format "+%s" mh-inbox))))
|
|
|
555 (setq mh-unseen-seq (mh-get-profile-field "Unseen-Sequence:"))
|
|
|
556 (if mh-unseen-seq
|
|
|
557 (setq mh-unseen-seq (intern mh-unseen-seq))
|
|
|
558 (setq mh-unseen-seq 'unseen)) ;old MH default?
|
|
|
559 (setq mh-previous-seq (mh-get-profile-field "Previous-Sequence:"))
|
|
|
560 (if mh-previous-seq
|
|
|
561 (setq mh-previous-seq (intern mh-previous-seq)))
|
|
2
|
562 (setq mail-user-agent 'mh-e-user-agent)
|
|
0
|
563 (run-hooks 'mh-find-path-hook))))
|
|
|
564
|
|
|
565 (defun mh-find-progs ()
|
|
|
566 (or (file-exists-p (expand-file-name "inc" mh-progs))
|
|
|
567 (setq mh-progs
|
|
|
568 (or (mh-path-search exec-path "inc")
|
|
|
569 (mh-path-search '("/usr/local/bin/mh/"
|
|
|
570 "/usr/local/mh/"
|
|
|
571 "/usr/bin/mh/" ;Ultrix 4.2
|
|
|
572 "/usr/new/mh/" ;Ultrix <4.2
|
|
|
573 "/usr/contrib/mh/bin/" ;BSDI
|
|
|
574 "/usr/local/bin/"
|
|
|
575 )
|
|
|
576 "inc")
|
|
|
577 mh-progs
|
|
|
578 "/usr/local/bin/")))
|
|
|
579 (or (file-exists-p (expand-file-name "mhl" mh-lib))
|
|
|
580 (setq mh-lib
|
|
|
581 (or (mh-path-search '("/usr/local/lib/mh/"
|
|
|
582 "/usr/local/mh/lib/"
|
|
|
583 "/usr/local/bin/mh/"
|
|
|
584 "/usr/lib/mh/" ;Ultrix 4.2
|
|
|
585 "/usr/new/lib/mh/" ;Ultrix <4.2
|
|
|
586 "/usr/contrib/mh/lib/" ;BSDI
|
|
|
587 )
|
|
|
588 "mhl")
|
|
|
589 (mh-path-search exec-path "mhl") ;unlikely
|
|
|
590 mh-lib
|
|
|
591 "/usr/local/lib/mh/"))))
|
|
|
592
|
|
|
593 (defun mh-path-search (path file)
|
|
|
594 ;; Search PATH, a list of directory names, for FILE.
|
|
|
595 ;; Returns the element of PATH that contains FILE, or nil if not found.
|
|
|
596 (while (and path
|
|
|
597 (not (file-exists-p (expand-file-name file (car path)))))
|
|
|
598 (setq path (cdr path)))
|
|
|
599 (car path))
|
|
|
600
|
|
|
601 (defvar mh-no-install nil) ;do not run install-mh
|
|
|
602
|
|
|
603 (defun mh-install (profile error-val)
|
|
|
604 ;; Called to do error recovery if we fail to read the profile file.
|
|
|
605 ;; If possible, initialize the MH environment.
|
|
|
606 (if (or (getenv "MH")
|
|
|
607 (file-exists-p profile)
|
|
|
608 mh-no-install)
|
|
|
609 (signal (car error-val)
|
|
|
610 (list (format "Cannot read MH profile \"%s\"" profile)
|
|
|
611 (car (cdr (cdr error-val))))))
|
|
|
612 ;; The "install-mh" command will output a short note which
|
|
|
613 ;; mh-exec-cmd will display to the user.
|
|
|
614 ;; The MH 5 version of install-mh might try prompt the user
|
|
|
615 ;; for information, which would fail here.
|
|
|
616 (mh-exec-cmd (expand-file-name "install-mh" mh-lib) "-auto")
|
|
|
617 ;; now try again to read the profile file
|
|
|
618 (erase-buffer)
|
|
|
619 (condition-case err
|
|
|
620 (insert-file-contents profile)
|
|
|
621 (file-error
|
|
|
622 (signal (car err) ;re-signal with more specific msg
|
|
|
623 (list (format "Cannot read MH profile \"%s\"" profile)
|
|
|
624 (car (cdr (cdr err))))))))
|
|
|
625
|
|
|
626
|
|
|
627 (defun mh-set-folder-modified-p (flag)
|
|
|
628 ;; Mark current folder as modified or unmodified according to FLAG.
|
|
|
629 (set-buffer-modified-p flag))
|
|
|
630
|
|
|
631
|
|
|
632 (defun mh-find-seq (name) (assoc name mh-seq-list))
|
|
|
633
|
|
|
634 (defun mh-seq-to-msgs (seq)
|
|
|
635 ;; Return a list of the messages in SEQUENCE.
|
|
|
636 (mh-seq-msgs (mh-find-seq seq)))
|
|
|
637
|
|
|
638
|
|
|
639 (defun mh-add-msgs-to-seq (msgs seq &optional internal-flag)
|
|
|
640 ;; Add MESSAGE(s) to the SEQUENCE. If optional FLAG is non-nil, do not mark
|
|
|
641 ;; the message in the scan listing or inform MH of the addition.
|
|
|
642 (let ((entry (mh-find-seq seq)))
|
|
|
643 (if (and msgs (atom msgs)) (setq msgs (list msgs)))
|
|
|
644 (if (null entry)
|
|
|
645 (setq mh-seq-list (cons (mh-make-seq seq msgs) mh-seq-list))
|
|
|
646 (if msgs (setcdr entry (append msgs (mh-seq-msgs entry)))))
|
|
|
647 (cond ((not internal-flag)
|
|
|
648 (mh-add-to-sequence seq msgs)
|
|
|
649 (mh-notate-seq seq mh-note-seq (1+ mh-cmd-note))))))
|
|
|
650
|
|
|
651 (autoload 'mh-add-to-sequence "mh-seq")
|
|
|
652 (autoload 'mh-notate-seq "mh-seq")
|
|
|
653 (autoload 'mh-read-seq-default "mh-seq")
|
|
|
654 (autoload 'mh-map-to-seq-msgs "mh-seq")
|
|
|
655
|
|
|
656
|
|
|
657 (defun mh-set-mode-name (mode-name-string)
|
|
|
658 ;; Set the mode-name and ensure that the mode line is updated.
|
|
|
659 (setq mode-name mode-name-string)
|
|
|
660 ;; Force redisplay of all buffers' mode lines to be considered.
|
|
|
661 (save-excursion (set-buffer (other-buffer)))
|
|
|
662 (set-buffer-modified-p (buffer-modified-p)))
|
|
|
663
|
|
|
664
|
|
|
665 (defun mh-prompt-for-folder (prompt default can-create)
|
|
|
666 ;; Prompt for a folder name with PROMPT. Returns the folder's name as a
|
|
|
667 ;; string. DEFAULT is used if the folder exists and the user types return.
|
|
|
668 ;; If the CAN-CREATE flag is t, then a non-existent folder is made.
|
|
|
669 (if (null default)
|
|
|
670 (setq default ""))
|
|
|
671 (let* ((prompt (format "%s folder%s" prompt
|
|
|
672 (if (equal "" default)
|
|
|
673 "? "
|
|
|
674 (format " [%s]? " default))))
|
|
|
675 read-name folder-name)
|
|
|
676 (if (null mh-folder-list)
|
|
|
677 (mh-set-folder-list))
|
|
|
678 (while (and (setq read-name (completing-read prompt mh-folder-list
|
|
|
679 nil nil "+"))
|
|
|
680 (equal read-name "")
|
|
|
681 (equal default "")))
|
|
|
682 (cond ((or (equal read-name "") (equal read-name "+"))
|
|
|
683 (setq read-name default))
|
|
|
684 ((not (mh-folder-name-p read-name))
|
|
|
685 (setq read-name (format "+%s" read-name))))
|
|
|
686 (setq folder-name read-name)
|
|
|
687 (cond ((and (> (length folder-name) 0)
|
|
|
688 (eql (aref folder-name (1- (length folder-name))) ?/))
|
|
|
689 (setq folder-name (substring folder-name 0 -1))))
|
|
|
690 (let ((new-file-p (not (file-exists-p (mh-expand-file-name folder-name)))))
|
|
|
691 (cond ((and new-file-p
|
|
|
692 (y-or-n-p
|
|
|
693 (format "Folder %s does not exist. Create it? " folder-name)))
|
|
|
694 (message "Creating %s" folder-name)
|
|
|
695 (call-process "mkdir" nil nil nil (mh-expand-file-name folder-name))
|
|
|
696 (message "Creating %s...done" folder-name)
|
|
|
697 (setq mh-folder-list (cons (list read-name) mh-folder-list))
|
|
|
698 (run-hooks 'mh-folder-list-change-hook))
|
|
|
699 (new-file-p
|
|
|
700 (error "Folder %s is not created" folder-name))
|
|
|
701 ((not (file-directory-p (mh-expand-file-name folder-name)))
|
|
|
702 (error "\"%s\" is not a directory"
|
|
|
703 (mh-expand-file-name folder-name)))
|
|
|
704 ((and (null (assoc read-name mh-folder-list))
|
|
|
705 (null (assoc (concat read-name "/") mh-folder-list)))
|
|
|
706 (setq mh-folder-list (cons (list read-name) mh-folder-list))
|
|
|
707 (run-hooks 'mh-folder-list-change-hook))))
|
|
|
708 folder-name))
|
|
|
709
|
|
|
710
|
|
|
711 (defvar mh-make-folder-list-process nil) ;The background process collecting the folder list.
|
|
|
712
|
|
|
713 (defvar mh-folder-list-temp nil) ;mh-folder-list as it is being built.
|
|
|
714
|
|
|
715 (defvar mh-folder-list-partial-line "") ;Start of last incomplete line from folder process.
|
|
|
716
|
|
|
717 (defun mh-set-folder-list ()
|
|
|
718 ;; Sets mh-folder-list correctly.
|
|
|
719 ;; A useful function for the command line or for when you need to
|
|
|
720 ;; sync by hand. Format is in a form suitable for completing read.
|
|
|
721 (message "Collecting folder names...")
|
|
|
722 (if (not mh-make-folder-list-process)
|
|
|
723 (mh-make-folder-list-background))
|
|
|
724 (while (eq (process-status mh-make-folder-list-process) 'run)
|
|
|
725 (accept-process-output mh-make-folder-list-process))
|
|
|
726 (setq mh-folder-list mh-folder-list-temp)
|
|
|
727 (run-hooks 'mh-folder-list-change-hook)
|
|
|
728 (setq mh-folder-list-temp nil)
|
|
|
729 (delete-process mh-make-folder-list-process)
|
|
|
730 (setq mh-make-folder-list-process nil)
|
|
|
731 (message "Collecting folder names...done"))
|
|
|
732
|
|
|
733 (defun mh-make-folder-list-background ()
|
|
|
734 ;; Start a background process to compute a list of the user's folders.
|
|
|
735 ;; Call mh-set-folder-list to wait for the result.
|
|
|
736 (cond
|
|
|
737 ((not mh-make-folder-list-process)
|
|
|
738 (mh-find-path)
|
|
|
739 (let ((process-connection-type nil))
|
|
|
740 (setq mh-make-folder-list-process
|
|
|
741 (start-process "folders" nil (expand-file-name "folders" mh-progs)
|
|
|
742 "-fast"
|
|
|
743 (if mh-recursive-folders
|
|
|
744 "-recurse"
|
|
|
745 "-norecurse")))
|
|
|
746 (set-process-filter mh-make-folder-list-process
|
|
|
747 'mh-make-folder-list-filter)
|
|
|
748 (process-kill-without-query mh-make-folder-list-process)))))
|
|
|
749
|
|
|
750 (defun mh-make-folder-list-filter (process output)
|
|
|
751 ;; parse output from "folders -fast"
|
|
|
752 (let ((position 0)
|
|
|
753 line-end
|
|
|
754 new-folder
|
|
|
755 (prevailing-match-data (match-data)))
|
|
|
756 (unwind-protect
|
|
|
757 ;; make sure got complete line
|
|
|
758 (while (setq line-end (string-match "\n" output position))
|
|
|
759 (setq new-folder (format "+%s%s"
|
|
|
760 mh-folder-list-partial-line
|
|
|
761 (substring output position line-end)))
|
|
|
762 (setq mh-folder-list-partial-line "")
|
|
|
763 ;; is new folder a subfolder of previous?
|
|
|
764 (if (and mh-folder-list-temp
|
|
|
765 (string-match
|
|
|
766 (regexp-quote
|
|
|
767 (concat (car (car mh-folder-list-temp)) "/"))
|
|
|
768 new-folder))
|
|
|
769 ;; append slash to parent folder for better completion
|
|
|
770 ;; (undone by mh-prompt-for-folder)
|
|
|
771 (setq mh-folder-list-temp
|
|
|
772 (cons
|
|
|
773 (list new-folder)
|
|
|
774 (cons
|
|
|
775 (list (concat (car (car mh-folder-list-temp)) "/"))
|
|
|
776 (cdr mh-folder-list-temp))))
|
|
|
777 (setq mh-folder-list-temp
|
|
|
778 (cons (list new-folder)
|
|
|
779 mh-folder-list-temp)))
|
|
|
780 (setq position (1+ line-end)))
|
|
|
781 (store-match-data prevailing-match-data))
|
|
|
782 (setq mh-folder-list-partial-line (substring output position))))
|
|
|
783
|
|
|
784
|
|
|
785 (defun mh-folder-name-p (name)
|
|
|
786 ;; Return non-NIL if NAME is possibly the name of a folder.
|
|
|
787 ;; A name (a string or symbol) can be a folder name if it begins with "+".
|
|
|
788 (if (symbolp name)
|
|
|
789 (eql (aref (symbol-name name) 0) ?+)
|
|
|
790 (and (> (length name) 0)
|
|
|
791 (eql (aref name 0) ?+))))
|
|
|
792
|
|
|
793
|
|
|
794 ;;; Issue commands to MH.
|
|
|
795
|
|
|
796
|
|
|
797 (defun mh-exec-cmd (command &rest args)
|
|
|
798 ;; Execute mh-command COMMAND with ARGS.
|
|
|
799 ;; The side effects are what is desired.
|
|
|
800 ;; Any output is assumed to be an error and is shown to the user.
|
|
|
801 ;; The output is not read or parsed by mh-e.
|
|
|
802 (save-excursion
|
|
|
803 (set-buffer (get-buffer-create mh-temp-buffer))
|
|
|
804 (erase-buffer)
|
|
|
805 (apply 'call-process
|
|
|
806 (expand-file-name command mh-progs) nil t nil
|
|
|
807 (mh-list-to-string args))
|
|
|
808 (if (> (buffer-size) 0)
|
|
|
809 (save-window-excursion
|
|
|
810 (switch-to-buffer-other-window mh-temp-buffer)
|
|
|
811 (sit-for 5)))))
|
|
|
812
|
|
|
813
|
|
|
814 (defun mh-exec-cmd-error (env command &rest args)
|
|
|
815 ;; In environment ENV, execute mh-command COMMAND with args ARGS.
|
|
|
816 ;; ENV is nil or a string of space-separated "var=value" elements.
|
|
|
817 ;; Signals an error if process does not complete successfully.
|
|
|
818 (save-excursion
|
|
|
819 (set-buffer (get-buffer-create mh-temp-buffer))
|
|
|
820 (erase-buffer)
|
|
|
821 (let ((status
|
|
|
822 (if env
|
|
|
823 ;; the shell hacks necessary here shows just how broken Unix is
|
|
|
824 (apply 'call-process "/bin/sh" nil t nil "-c"
|
|
|
825 (format "%s %s ${1+\"$@\"}"
|
|
|
826 env
|
|
|
827 (expand-file-name command mh-progs))
|
|
|
828 command
|
|
|
829 (mh-list-to-string args))
|
|
|
830 (apply 'call-process
|
|
|
831 (expand-file-name command mh-progs) nil t nil
|
|
|
832 (mh-list-to-string args)))))
|
|
|
833 (mh-handle-process-error command status))))
|
|
|
834
|
|
|
835
|
|
|
836 (defun mh-exec-cmd-daemon (command &rest args)
|
|
|
837 ;; Execute MH command COMMAND with ARGS in the background.
|
|
|
838 ;; Any output from command is displayed in an asynchronous pop-up window.
|
|
|
839 (save-excursion
|
|
|
840 (set-buffer (get-buffer-create mh-temp-buffer))
|
|
|
841 (erase-buffer))
|
|
|
842 (let* ((process-connection-type nil)
|
|
|
843 (process (apply 'start-process
|
|
|
844 command nil
|
|
|
845 (expand-file-name command mh-progs)
|
|
|
846 (mh-list-to-string args))))
|
|
|
847 (set-process-filter process 'mh-process-daemon)))
|
|
|
848
|
|
|
849 (defun mh-process-daemon (process output)
|
|
|
850 ;; Process daemon that puts output into a temporary buffer.
|
|
|
851 (set-buffer (get-buffer-create mh-temp-buffer))
|
|
|
852 (insert-before-markers output)
|
|
|
853 (display-buffer mh-temp-buffer))
|
|
|
854
|
|
|
855
|
|
|
856 (defun mh-exec-cmd-quiet (raise-error command &rest args)
|
|
|
857 ;; Args are RAISE-ERROR, COMMANDS, ARGS....
|
|
|
858 ;; Execute MH command COMMAND with ARGS. ARGS is a list of strings.
|
|
|
859 ;; Return at start of mh-temp buffer, where output can be parsed and used.
|
|
|
860 ;; Returns value of call-process, which is 0 for success,
|
|
|
861 ;; unless RAISE-ERROR is non-nil, in which case an error is signaled
|
|
|
862 ;; if call-process returns non-0.
|
|
|
863 (set-buffer (get-buffer-create mh-temp-buffer))
|
|
|
864 (erase-buffer)
|
|
|
865 (let ((value
|
|
|
866 (apply 'call-process
|
|
|
867 (expand-file-name command mh-progs) nil t nil
|
|
|
868 args)))
|
|
|
869 (goto-char (point-min))
|
|
|
870 (if raise-error
|
|
|
871 (mh-handle-process-error command value)
|
|
|
872 value)))
|
|
|
873
|
|
|
874
|
|
|
875 (defun mh-exec-cmd-output (command display &rest args)
|
|
|
876 ;; Execute MH command COMMAND with DISPLAY flag and ARGS.
|
|
|
877 ;; Put the output into buffer after point. Set mark after inserted text.
|
|
|
878 ;; Output is expected to be shown to user, not parsed by mh-e.
|
|
|
879 (push-mark (point) t)
|
|
|
880 (apply 'call-process
|
|
|
881 (expand-file-name command mh-progs) nil t display
|
|
|
882 (mh-list-to-string args))
|
|
|
883 (exchange-point-and-mark))
|
|
|
884
|
|
|
885
|
|
|
886 (defun mh-exec-lib-cmd-output (command &rest args)
|
|
|
887 ;; Execute MH library command COMMAND with ARGS.
|
|
|
888 ;; Put the output into buffer after point. Set mark after inserted text.
|
|
|
889 (apply 'mh-exec-cmd-output (expand-file-name command mh-lib) nil args))
|
|
|
890
|
|
|
891
|
|
|
892 (defun mh-handle-process-error (command status)
|
|
|
893 ;; Raise error if COMMAND returned non-0 STATUS, otherwise return STATUS.
|
|
|
894 ;; STATUS is return value from call-process.
|
|
|
895 ;; Program output is in current buffer.
|
|
|
896 ;; If output is too long to include in error message, display the buffer.
|
|
|
897 (cond ((eql status 0) ;success
|
|
|
898 status)
|
|
|
899 ((stringp status) ;kill string
|
|
2
|
900 (error "%s: %s" command status))
|
|
0
|
901 (t ;exit code
|
|
|
902 (cond
|
|
|
903 ((= (buffer-size) 0) ;program produced no error message
|
|
2
|
904 (error "%s: exit code %d" command status))
|
|
0
|
905 (t
|
|
|
906 ;; will error message fit on one line?
|
|
|
907 (goto-line 2)
|
|
|
908 (if (and (< (buffer-size) (screen-width))
|
|
|
909 (eobp))
|
|
2
|
910 (error "%s"
|
|
|
911 (buffer-substring 1 (progn (goto-char 1)
|
|
0
|
912 (end-of-line)
|
|
|
913 (point))))
|
|
|
914 (display-buffer (current-buffer))
|
|
2
|
915 (error "%s failed with status %d. See error message in other window."
|
|
|
916 command status)))))))
|
|
0
|
917
|
|
|
918
|
|
|
919 (defun mh-expand-file-name (filename &optional default)
|
|
|
920 ;; Just like `expand-file-name', but also handles MH folder names.
|
|
|
921 ;; Assumes that any filename that starts with '+' is a folder name.
|
|
|
922 (if (mh-folder-name-p filename)
|
|
|
923 (expand-file-name (substring filename 1) mh-user-path)
|
|
|
924 (expand-file-name filename default)))
|
|
|
925
|
|
|
926
|
|
|
927 (defun mh-list-to-string (l)
|
|
|
928 ;; Flattens the list L and makes every element of the new list into a string.
|
|
|
929 (nreverse (mh-list-to-string-1 l)))
|
|
|
930
|
|
|
931 (defun mh-list-to-string-1 (l)
|
|
|
932 (let ((new-list nil))
|
|
|
933 (while l
|
|
|
934 (cond ((null (car l)))
|
|
|
935 ((symbolp (car l))
|
|
|
936 (setq new-list (cons (symbol-name (car l)) new-list)))
|
|
|
937 ((numberp (car l))
|
|
|
938 (setq new-list (cons (int-to-string (car l)) new-list)))
|
|
|
939 ((equal (car l) ""))
|
|
|
940 ((stringp (car l)) (setq new-list (cons (car l) new-list)))
|
|
|
941 ((listp (car l))
|
|
|
942 (setq new-list (nconc (mh-list-to-string-1 (car l))
|
|
|
943 new-list)))
|
|
|
944 (t (error "Bad element in mh-list-to-string: %s" (car l))))
|
|
|
945 (setq l (cdr l)))
|
|
|
946 new-list))
|
|
|
947
|
|
|
948 (provide 'mh-utils)
|
|
|
949
|
|
|
950 (and (not noninteractive)
|
|
|
951 mh-auto-folder-collect
|
|
|
952 (let ((mh-no-install t)) ;only get folders if MH installed
|
|
|
953 (condition-case err
|
|
|
954 (mh-make-folder-list-background)
|
|
|
955 (file-error)))) ;so don't complain if not installed
|
|
|
956
|
|
|
957 ;;; mh-utils.el ends here
|
