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bdcfe844 | 1 | ;;; mh-utils.el --- MH-E code needed for both sending and reading |
c26cf6c8 | 2 | |
e495eaec | 3 | ;; Copyright (C) 1993, 1995, 1997, |
44d55491 | 4 | ;; 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
a1b4049d BW |
5 | |
6 | ;; Author: Bill Wohler <wohler@newt.com> | |
7 | ;; Maintainer: Bill Wohler <wohler@newt.com> | |
8 | ;; Keywords: mail | |
9 | ;; See: mh-e.el | |
c26cf6c8 | 10 | |
60370d40 | 11 | ;; This file is part of GNU Emacs. |
c26cf6c8 | 12 | |
9b7bc076 | 13 | ;; GNU Emacs is free software; you can redistribute it and/or modify |
c26cf6c8 RS |
14 | ;; it under the terms of the GNU General Public License as published by |
15 | ;; the Free Software Foundation; either version 2, or (at your option) | |
16 | ;; any later version. | |
17 | ||
9b7bc076 | 18 | ;; GNU Emacs is distributed in the hope that it will be useful, |
c26cf6c8 RS |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
b578f267 | 24 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
3a35cf56 LK |
25 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
26 | ;; Boston, MA 02110-1301, USA. | |
c26cf6c8 RS |
27 | |
28 | ;;; Commentary: | |
29 | ||
bdcfe844 | 30 | ;; Internal support for MH-E package. |
c26cf6c8 | 31 | |
a1b4049d BW |
32 | ;;; Change Log: |
33 | ||
c26cf6c8 RS |
34 | ;;; Code: |
35 | ||
f0d73c14 BW |
36 | (defvar recursive-load-depth-limit) |
37 | (eval-and-compile | |
38 | (if (and (boundp 'recursive-load-depth-limit) | |
39 | (integerp recursive-load-depth-limit) | |
40 | (> 50 recursive-load-depth-limit)) | |
41 | (setq recursive-load-depth-limit 50))) | |
a66894d8 | 42 | |
f0d73c14 | 43 | (eval-when-compile (require 'mh-acros)) |
a66894d8 | 44 | (mh-require-cl) |
bdcfe844 | 45 | (require 'gnus-util) |
c3d9274a | 46 | (require 'font-lock) |
a66894d8 BW |
47 | (require 'mouse) |
48 | (load "tool-bar" t t) | |
c3d9274a BW |
49 | (require 'mh-loaddefs) |
50 | (require 'mh-customize) | |
a66894d8 | 51 | (require 'mh-inc) |
c3d9274a BW |
52 | |
53 | (load "mm-decode" t t) ; Non-fatal dependency | |
54 | (load "mm-view" t t) ; Non-fatal dependency | |
f0d73c14 | 55 | (load "vcard" t t) ; Non-fatal dependency |
a66894d8 | 56 | (load "hl-line" t t) ; Non-fatal dependency |
c3d9274a BW |
57 | (load "executable" t t) ; Non-fatal dependency on |
58 | ; executable-find | |
bdcfe844 BW |
59 | |
60 | ;; Shush the byte-compiler | |
61 | (defvar font-lock-auto-fontify) | |
62 | (defvar font-lock-defaults) | |
63 | (defvar mark-active) | |
bdcfe844 | 64 | |
c3d9274a | 65 | ;;; Autoloads |
bdcfe844 | 66 | (autoload 'gnus-article-highlight-citation "gnus-cite") |
f0d73c14 BW |
67 | (autoload 'message-fetch-field "message") |
68 | (autoload 'message-tokenize-header "message") | |
924df208 | 69 | (require 'sendmail) |
bdcfe844 BW |
70 | (unless (fboundp 'make-hash-table) |
71 | (autoload 'make-hash-table "cl")) | |
72 | ||
c3d9274a BW |
73 | ;;; CL Replacements |
74 | (defun mh-search-from-end (char string) | |
75 | "Return the position of last occurrence of CHAR in STRING. | |
76 | If CHAR is not present in STRING then return nil. The function is used in lieu | |
77 | of `search' in the CL package." | |
78 | (loop for index from (1- (length string)) downto 0 | |
79 | when (equal (aref string index) char) return index | |
80 | finally return nil)) | |
81 | ||
a1b4049d BW |
82 | ;;; Additional header fields that might someday be added: |
83 | ;;; "Sender: " "Reply-to: " | |
84 | ||
f0d73c14 BW |
85 | \f |
86 | ;;; Scan Line Formats | |
87 | ||
a1b4049d | 88 | (defvar mh-scan-msg-number-regexp "^ *\\([0-9]+\\)" |
f0d73c14 BW |
89 | "This regexp is used to extract the message number from a scan line. |
90 | Note that the message number must be placed in a parenthesized expression as | |
91 | in the default of \"^ *\\\\([0-9]+\\\\)\".") | |
c26cf6c8 | 92 | |
3d7ca223 | 93 | (defvar mh-scan-msg-overflow-regexp "^[?0-9][0-9]" |
f0d73c14 | 94 | "This regexp matches scan lines in which the message number overflowed.") |
bdcfe844 BW |
95 | |
96 | (defvar mh-scan-msg-format-regexp "%\\([0-9]*\\)(msg)" | |
f0d73c14 BW |
97 | "This regexp is used to find the message number width in a scan format. |
98 | Note that the message number must be placed in a parenthesized expression as | |
99 | in the default of \"%\\\\([0-9]*\\\\)(msg)\".") | |
bdcfe844 BW |
100 | |
101 | (defvar mh-scan-msg-format-string "%d" | |
f0d73c14 | 102 | "This is a format string for width of the message number in a scan format. |
bdcfe844 BW |
103 | Use `0%d' for zero-filled message numbers.") |
104 | ||
a1b4049d | 105 | (defvar mh-scan-msg-search-regexp "^[^0-9]*%d[^0-9]" |
f0d73c14 BW |
106 | "This format string regexp matches the scan line for a particular message. |
107 | Use `%d' to represent the location of the message number within the | |
108 | expression as in the default of \"^[^0-9]*%d[^0-9]\".") | |
109 | ||
110 | (defvar mh-cmd-note 4 | |
111 | "This is the number of characters to skip over before inserting notation. | |
112 | This variable should be set with the function `mh-set-cmd-note'. This variable | |
113 | may be updated dynamically if `mh-adaptive-cmd-note-flag' is non-nil and | |
114 | `mh-scan-format-file' is t.") | |
115 | (make-variable-buffer-local 'mh-cmd-note) | |
116 | ||
117 | (defvar mh-note-seq ?% | |
118 | "Messages in a user-defined sequence are marked by this character. | |
119 | Messages in the `search' sequence are marked by this character as well.") | |
120 | ||
121 | \f | |
b6d4ab05 | 122 | |
3d7ca223 | 123 | (defvar mh-show-buffer-mode-line-buffer-id " {show-%s} %d" |
b6d4ab05 KH |
124 | "Format string to produce `mode-line-buffer-identification' for show buffers. |
125 | First argument is folder name. Second is message number.") | |
c26cf6c8 | 126 | |
f0d73c14 | 127 | \f |
b6d4ab05 | 128 | |
a1b4049d BW |
129 | (defvar mh-mail-header-separator "--------" |
130 | "*Line used by MH to separate headers from text in messages being composed. | |
131 | This variable should not be used directly in programs. Programs should use | |
132 | `mail-header-separator' instead. `mail-header-separator' is initialized to | |
133 | `mh-mail-header-separator' in `mh-letter-mode'; in other contexts, you may | |
134 | have to perform this initialization yourself. | |
135 | ||
136 | Do not make this a regexp as it may be the argument to `insert' and it is | |
137 | passed through `regexp-quote' before being used by functions like | |
138 | `re-search-forward'.") | |
139 | ||
f0d73c14 BW |
140 | (defvar mh-signature-separator-regexp "^-- $" |
141 | "Regexp used to find signature separator. | |
142 | See `mh-signature-separator'.") | |
143 | ||
144 | (defvar mh-signature-separator "-- \n" | |
145 | "Text of a signature separator. | |
146 | A signature separator is used to separate the body of a message from the | |
147 | signature. This can be used by user agents such as MH-E to render the | |
148 | signature differently or to suppress the inclusion of the signature in a | |
149 | reply. | |
150 | Use `mh-signature-separator-regexp' when searching for a separator.") | |
151 | ||
152 | (defun mh-signature-separator-p () | |
153 | "Return non-nil if buffer includes \"^-- $\"." | |
154 | (save-excursion | |
155 | (goto-char (point-min)) | |
156 | (re-search-forward mh-signature-separator-regexp nil t))) | |
157 | ||
c3d9274a | 158 | ;; Variables for MIME display |
bdcfe844 | 159 | |
c3d9274a | 160 | ;; Structure to keep track of MIME handles on a per buffer basis. |
f0d73c14 BW |
161 | (mh-defstruct (mh-buffer-data (:conc-name mh-mime-) |
162 | (:constructor mh-make-buffer-data)) | |
c3d9274a BW |
163 | (handles ()) ; List of MIME handles |
164 | (handles-cache (make-hash-table)) ; Cache to avoid multiple decodes of | |
165 | ; nested messages | |
166 | (parts-count 0) ; The button number is generated from | |
167 | ; this number | |
168 | (part-index-hash (make-hash-table))) ; Avoid incrementing the part number | |
169 | ; for nested messages | |
170 | ;;; This has to be a macro, since we do: (setf (mh-buffer-data) ...) | |
171 | (defmacro mh-buffer-data () | |
172 | "Convenience macro to get the MIME data structures of the current buffer." | |
173 | `(gethash (current-buffer) mh-globals-hash)) | |
bdcfe844 | 174 | |
bdcfe844 BW |
175 | (defvar mh-globals-hash (make-hash-table) |
176 | "Keeps track of MIME data on a per buffer basis.") | |
177 | ||
178 | (defvar mh-gnus-pgp-support-flag (not (not (locate-library "mml2015"))) | |
179 | "Non-nil means installed Gnus has PGP support.") | |
180 | ||
181 | (defvar mh-mm-inline-media-tests | |
182 | `(("image/jpeg" | |
183 | mm-inline-image | |
184 | (lambda (handle) | |
185 | (mm-valid-and-fit-image-p 'jpeg handle))) | |
186 | ("image/png" | |
187 | mm-inline-image | |
188 | (lambda (handle) | |
189 | (mm-valid-and-fit-image-p 'png handle))) | |
190 | ("image/gif" | |
191 | mm-inline-image | |
192 | (lambda (handle) | |
193 | (mm-valid-and-fit-image-p 'gif handle))) | |
194 | ("image/tiff" | |
195 | mm-inline-image | |
196 | (lambda (handle) | |
197 | (mm-valid-and-fit-image-p 'tiff handle)) ) | |
198 | ("image/xbm" | |
199 | mm-inline-image | |
200 | (lambda (handle) | |
201 | (mm-valid-and-fit-image-p 'xbm handle))) | |
202 | ("image/x-xbitmap" | |
203 | mm-inline-image | |
204 | (lambda (handle) | |
205 | (mm-valid-and-fit-image-p 'xbm handle))) | |
206 | ("image/xpm" | |
207 | mm-inline-image | |
208 | (lambda (handle) | |
209 | (mm-valid-and-fit-image-p 'xpm handle))) | |
210 | ("image/x-pixmap" | |
211 | mm-inline-image | |
212 | (lambda (handle) | |
213 | (mm-valid-and-fit-image-p 'xpm handle))) | |
214 | ("image/bmp" | |
215 | mm-inline-image | |
216 | (lambda (handle) | |
217 | (mm-valid-and-fit-image-p 'bmp handle))) | |
218 | ("image/x-portable-bitmap" | |
219 | mm-inline-image | |
220 | (lambda (handle) | |
221 | (mm-valid-and-fit-image-p 'pbm handle))) | |
222 | ("text/plain" mm-inline-text identity) | |
223 | ("text/enriched" mm-inline-text identity) | |
224 | ("text/richtext" mm-inline-text identity) | |
225 | ("text/x-patch" mm-display-patch-inline | |
226 | (lambda (handle) | |
227 | (locate-library "diff-mode"))) | |
228 | ("application/emacs-lisp" mm-display-elisp-inline identity) | |
229 | ("application/x-emacs-lisp" mm-display-elisp-inline identity) | |
230 | ("text/html" | |
231 | ,(if (fboundp 'mm-inline-text-html) 'mm-inline-text-html 'mm-inline-text) | |
232 | (lambda (handle) | |
233 | (or (and (boundp 'mm-inline-text-html-renderer) | |
234 | mm-inline-text-html-renderer) | |
235 | (and (boundp 'mm-text-html-renderer) mm-text-html-renderer)))) | |
236 | ("text/x-vcard" | |
237 | mm-inline-text-vcard | |
238 | (lambda (handle) | |
239 | (or (featurep 'vcard) | |
240 | (locate-library "vcard")))) | |
241 | ("message/delivery-status" mm-inline-text identity) | |
242 | ("message/rfc822" mh-mm-inline-message identity) | |
c3d9274a BW |
243 | ;;("message/partial" mm-inline-partial identity) |
244 | ;;("message/external-body" mm-inline-external-body identity) | |
bdcfe844 BW |
245 | ("text/.*" mm-inline-text identity) |
246 | ("audio/wav" mm-inline-audio | |
247 | (lambda (handle) | |
248 | (and (or (featurep 'nas-sound) (featurep 'native-sound)) | |
249 | (device-sound-enabled-p)))) | |
250 | ("audio/au" | |
251 | mm-inline-audio | |
252 | (lambda (handle) | |
253 | (and (or (featurep 'nas-sound) (featurep 'native-sound)) | |
254 | (device-sound-enabled-p)))) | |
255 | ("application/pgp-signature" ignore identity) | |
256 | ("application/x-pkcs7-signature" ignore identity) | |
257 | ("application/pkcs7-signature" ignore identity) | |
258 | ("application/x-pkcs7-mime" ignore identity) | |
259 | ("application/pkcs7-mime" ignore identity) | |
260 | ("multipart/alternative" ignore identity) | |
261 | ("multipart/mixed" ignore identity) | |
262 | ("multipart/related" ignore identity) | |
263 | ;; Disable audio and image | |
264 | ("audio/.*" ignore ignore) | |
265 | ("image/.*" ignore ignore) | |
266 | ;; Default to displaying as text | |
267 | (".*" mm-inline-text mm-readable-p)) | |
268 | "Alist of media types/tests saying whether types can be displayed inline.") | |
269 | ||
c3d9274a BW |
270 | ;; Copy of `goto-address-mail-regexp' |
271 | (defvar mh-address-mail-regexp | |
a66894d8 | 272 | "[-a-zA-Z0-9._]+@\\([-a-zA-z0-9_]+\\.\\)+[a-zA-Z0-9]+" |
c3d9274a BW |
273 | "A regular expression probably matching an e-mail address.") |
274 | ||
275 | ;; From goto-addr.el, which we don't want to force-load on users. | |
f0d73c14 | 276 | |
c3d9274a BW |
277 | (defun mh-goto-address-find-address-at-point () |
278 | "Find e-mail address around or before point. | |
279 | Then search backwards to beginning of line for the start of an e-mail | |
280 | address. If no e-mail address found, return nil." | |
281 | (re-search-backward "[^-_A-z0-9.@]" (line-beginning-position) 'lim) | |
282 | (if (or (looking-at mh-address-mail-regexp) ; already at start | |
283 | (and (re-search-forward mh-address-mail-regexp | |
284 | (line-end-position) 'lim) | |
285 | (goto-char (match-beginning 0)))) | |
286 | (match-string-no-properties 0))) | |
287 | ||
924df208 BW |
288 | (defun mh-mail-header-end () |
289 | "Substitute for `mail-header-end' that doesn't widen the buffer. | |
290 | In MH-E we frequently need to find the end of headers in nested messages, where | |
291 | the buffer has been narrowed. This function works in this situation." | |
292 | (save-excursion | |
f0d73c14 BW |
293 | ;; XXX: The following replaces a call to rfc822-goto-eoh. Occasionally, |
294 | ;; mail headers that MH-E has to read contains lines of the form: | |
295 | ;; From xxx@yyy Mon May 10 11:48:07 2004 | |
296 | ;; In this situation, rfc822-goto-eoh doesn't go to the end of the | |
297 | ;; header. The replacement allows From_ lines in the mail header. | |
298 | (goto-char (point-min)) | |
299 | (loop for p = (re-search-forward | |
300 | "^\\([:\n]\\|[^: \t\n]+[ \t\n]\\)" nil 'move) | |
301 | do (cond ((null p) (return)) | |
302 | (t (goto-char (match-beginning 0)) | |
303 | (unless (looking-at "From ") (return)) | |
304 | (goto-char p)))) | |
924df208 BW |
305 | (point))) |
306 | ||
a1b4049d | 307 | (defun mh-in-header-p () |
bdcfe844 | 308 | "Return non-nil if the point is in the header of a draft message." |
924df208 | 309 | (< (point) (mh-mail-header-end))) |
a1b4049d | 310 | |
c3d9274a BW |
311 | (defun mh-header-field-beginning () |
312 | "Move to the beginning of the current header field. | |
313 | Handles RFC 822 continuation lines." | |
314 | (beginning-of-line) | |
315 | (while (looking-at "^[ \t]") | |
316 | (forward-line -1))) | |
317 | ||
a1b4049d | 318 | (defun mh-header-field-end () |
bdcfe844 BW |
319 | "Move to the end of the current header field. |
320 | Handles RFC 822 continuation lines." | |
a1b4049d BW |
321 | (forward-line 1) |
322 | (while (looking-at "^[ \t]") | |
323 | (forward-line 1)) | |
c3d9274a | 324 | (backward-char 1)) ;to end of previous line |
a1b4049d BW |
325 | |
326 | (defun mh-letter-header-font-lock (limit) | |
327 | "Return the entire mail header to font-lock. | |
328 | Argument LIMIT limits search." | |
329 | (if (= (point) limit) | |
330 | nil | |
924df208 | 331 | (let* ((mail-header-end (save-match-data (mh-mail-header-end))) |
a1b4049d BW |
332 | (lesser-limit (if (< mail-header-end limit) mail-header-end limit))) |
333 | (when (mh-in-header-p) | |
334 | (set-match-data (list 1 lesser-limit)) | |
335 | (goto-char lesser-limit) | |
336 | t)))) | |
337 | ||
338 | (defun mh-header-field-font-lock (field limit) | |
339 | "Return the value of a header field FIELD to font-lock. | |
340 | Argument LIMIT limits search." | |
341 | (if (= (point) limit) | |
342 | nil | |
924df208 | 343 | (let* ((mail-header-end (mh-mail-header-end)) |
a1b4049d BW |
344 | (lesser-limit (if (< mail-header-end limit) mail-header-end limit)) |
345 | (case-fold-search t)) | |
c3d9274a | 346 | (when (and (< (point) mail-header-end) ;Only within header |
a1b4049d BW |
347 | (re-search-forward (format "^%s" field) lesser-limit t)) |
348 | (let ((match-one-b (match-beginning 0)) | |
349 | (match-one-e (match-end 0))) | |
350 | (mh-header-field-end) | |
c3d9274a | 351 | (if (> (point) limit) ;Don't search for end beyond limit |
a1b4049d BW |
352 | (goto-char limit)) |
353 | (set-match-data (list match-one-b match-one-e | |
354 | (1+ match-one-e) (point))) | |
355 | t))))) | |
356 | ||
357 | (defun mh-header-to-font-lock (limit) | |
bdcfe844 BW |
358 | "Return the value of a header field To to font-lock. |
359 | Argument LIMIT limits search." | |
a1b4049d BW |
360 | (mh-header-field-font-lock "To:" limit)) |
361 | ||
362 | (defun mh-header-cc-font-lock (limit) | |
bdcfe844 BW |
363 | "Return the value of a header field cc to font-lock. |
364 | Argument LIMIT limits search." | |
a1b4049d BW |
365 | (mh-header-field-font-lock "cc:" limit)) |
366 | ||
367 | (defun mh-header-subject-font-lock (limit) | |
bdcfe844 BW |
368 | "Return the value of a header field Subject to font-lock. |
369 | Argument LIMIT limits search." | |
a1b4049d BW |
370 | (mh-header-field-font-lock "Subject:" limit)) |
371 | ||
bdcfe844 BW |
372 | (eval-and-compile |
373 | ;; Otherwise byte-compilation fails on `mh-show-font-lock-keywords-with-cite' | |
374 | (defvar mh-show-font-lock-keywords | |
375 | '(("^\\(From:\\|Sender:\\)\\(.*\\)" (1 'default) (2 mh-show-from-face)) | |
376 | (mh-header-to-font-lock (0 'default) (1 mh-show-to-face)) | |
377 | (mh-header-cc-font-lock (0 'default) (1 mh-show-cc-face)) | |
378 | ("^\\(Reply-To:\\|Return-Path:\\)\\(.*\\)$" | |
c3d9274a | 379 | (1 'default) (2 mh-show-from-face)) |
bdcfe844 BW |
380 | (mh-header-subject-font-lock (0 'default) (1 mh-show-subject-face)) |
381 | ("^\\(Apparently-To:\\|Newsgroups:\\)\\(.*\\)" | |
c3d9274a | 382 | (1 'default) (2 mh-show-cc-face)) |
bdcfe844 | 383 | ("^\\(In-reply-to\\|Date\\):\\(.*\\)$" |
c3d9274a | 384 | (1 'default) (2 mh-show-date-face)) |
bdcfe844 BW |
385 | (mh-letter-header-font-lock (0 mh-show-header-face append t))) |
386 | "Additional expressions to highlight in MH-show mode.")) | |
387 | ||
388 | (defvar mh-show-font-lock-keywords-with-cite | |
389 | (eval-when-compile | |
390 | (let* ((cite-chars "[>|}]") | |
391 | (cite-prefix "A-Za-z") | |
392 | (cite-suffix (concat cite-prefix "0-9_.@-`'\""))) | |
393 | (append | |
394 | mh-show-font-lock-keywords | |
395 | (list | |
396 | ;; Use MATCH-ANCHORED to effectively anchor the regexp left side. | |
397 | `(,cite-chars | |
398 | (,(concat "\\=[ \t]*" | |
399 | "\\(\\([" cite-prefix "]+[" cite-suffix "]*\\)?" | |
400 | "\\(" cite-chars "[ \t]*\\)\\)+" | |
401 | "\\(.*\\)") | |
402 | (beginning-of-line) (end-of-line) | |
403 | (2 font-lock-constant-face nil t) | |
404 | (4 font-lock-comment-face nil t))))))) | |
405 | "Additional expressions to highlight in MH-show mode.") | |
406 | ||
a66894d8 BW |
407 | (defvar mh-letter-font-lock-keywords |
408 | `(,@mh-show-font-lock-keywords-with-cite | |
44d55491 | 409 | (mh-font-lock-field-data (1 'mh-letter-header-field prepend t)))) |
a66894d8 | 410 | |
bdcfe844 BW |
411 | (defun mh-show-font-lock-fontify-region (beg end loudly) |
412 | "Limit font-lock in `mh-show-mode' to the header. | |
413 | Used when `mh-highlight-citation-p' is set to gnus, leaving the body to be | |
414 | dealt with by gnus highlighting. The region between BEG and END is | |
415 | given over to be fontified and LOUDLY controls if a user sees a | |
416 | message about the fontification operation." | |
924df208 | 417 | (let ((header-end (mh-mail-header-end))) |
bdcfe844 BW |
418 | (cond |
419 | ((and (< beg header-end)(< end header-end)) | |
420 | (font-lock-default-fontify-region beg end loudly)) | |
421 | ((and (< beg header-end)(>= end header-end)) | |
422 | (font-lock-default-fontify-region beg header-end loudly)) | |
423 | (t | |
424 | nil)))) | |
425 | ||
426 | ;; Needed to help shush the byte-compiler. | |
427 | (if mh-xemacs-flag | |
428 | (progn | |
429 | (eval-and-compile | |
c3d9274a BW |
430 | (require 'gnus) |
431 | (require 'gnus-art) | |
432 | (require 'gnus-cite)))) | |
a1b4049d BW |
433 | |
434 | (defun mh-gnus-article-highlight-citation () | |
435 | "Highlight cited text in current buffer using gnus." | |
436 | (interactive) | |
bdcfe844 BW |
437 | ;; Requiring gnus-cite should have been sufficient. However for Emacs21.1, |
438 | ;; recursive-load-depth-limit is only 10, so an error occurs. Also it may be | |
439 | ;; better to have an autoload at top-level (though that won't work because | |
440 | ;; of recursive-load-depth-limit). That gets rid of a compiler warning as | |
441 | ;; well. | |
442 | (unless mh-xemacs-flag | |
443 | (require 'gnus-art) | |
444 | (require 'gnus-cite)) | |
445 | ;; Don't allow Gnus to create buttons while highlighting, maybe this is bad | |
446 | ;; style? | |
447 | (flet ((gnus-article-add-button (&rest args) nil)) | |
448 | (let* ((modified (buffer-modified-p)) | |
c3d9274a BW |
449 | (gnus-article-buffer (buffer-name)) |
450 | (gnus-cite-face-list `(,@(cdr gnus-cite-face-list) | |
451 | ,(car gnus-cite-face-list)))) | |
bdcfe844 BW |
452 | (gnus-article-highlight-citation t) |
453 | (set-buffer-modified-p modified)))) | |
a1b4049d | 454 | |
b6d4ab05 KH |
455 | ;;; Internal bookkeeping variables: |
456 | ||
b6d4ab05 | 457 | ;; Cached value of the `Path:' component in the user's MH profile. |
a1b4049d BW |
458 | ;; User's mail folder directory. |
459 | (defvar mh-user-path nil) | |
c26cf6c8 | 460 | |
bdcfe844 | 461 | ;; An mh-draft-folder of nil means do not use a draft folder. |
b6d4ab05 | 462 | ;; Cached value of the `Draft-Folder:' component in the user's MH profile. |
a1b4049d BW |
463 | ;; Name of folder containing draft messages. |
464 | (defvar mh-draft-folder nil) | |
c26cf6c8 | 465 | |
b6d4ab05 | 466 | ;; Cached value of the `Unseen-Sequence:' component in the user's MH profile. |
a1b4049d BW |
467 | ;; Name of the Unseen sequence. |
468 | (defvar mh-unseen-seq nil) | |
c26cf6c8 | 469 | |
a1b4049d BW |
470 | ;; Cached value of the `Previous-Sequence:' component in the user's MH |
471 | ;; profile. | |
472 | ;; Name of the Previous sequence. | |
473 | (defvar mh-previous-seq nil) | |
c26cf6c8 | 474 | |
b6d4ab05 KH |
475 | ;; Cached value of the `Inbox:' component in the user's MH profile, |
476 | ;; or "+inbox" if no such component. | |
a1b4049d BW |
477 | ;; Name of the Inbox folder. |
478 | (defvar mh-inbox nil) | |
c26cf6c8 | 479 | |
3d7ca223 BW |
480 | ;; The names of ephemeral buffers have a " *mh-" prefix (so that they are |
481 | ;; hidden and can be programmatically removed in mh-quit), and the variable | |
482 | ;; names have the form mh-temp-.*-buffer. | |
483 | (defconst mh-temp-buffer " *mh-temp*") ;scratch | |
f0d73c14 | 484 | (defconst mh-temp-fetch-buffer " *mh-fetch*") ;wget/curl/fetch output |
3d7ca223 BW |
485 | |
486 | ;; The names of MH-E buffers that are not ephemeral and can be used by the | |
487 | ;; user (and deleted by the user when no longer needed) have a "*MH-E " prefix | |
488 | ;; (so they can be programmatically removed in mh-quit), and the variable | |
489 | ;; names have the form mh-.*-buffer. | |
f0d73c14 | 490 | (defconst mh-aliases-buffer "*MH-E Aliases*") ;alias lookups |
3d7ca223 | 491 | (defconst mh-folders-buffer "*MH-E Folders*") ;folder list |
f0d73c14 | 492 | (defconst mh-help-buffer "*MH-E Help*") ;quick help |
3d7ca223 BW |
493 | (defconst mh-info-buffer "*MH-E Info*") ;version information buffer |
494 | (defconst mh-log-buffer "*MH-E Log*") ;output of MH commands and so on | |
f0d73c14 | 495 | (defconst mh-mail-delivery-buffer "*MH-E Mail Delivery*") ;mail delivery log |
3d7ca223 BW |
496 | (defconst mh-recipients-buffer "*MH-E Recipients*") ;killed when draft sent |
497 | (defconst mh-sequences-buffer "*MH-E Sequences*") ;sequences list | |
924df208 BW |
498 | |
499 | ;; Number of lines to keep in mh-log-buffer. | |
500 | (defvar mh-log-buffer-lines 100) | |
a1b4049d | 501 | |
bdcfe844 | 502 | ;; Window configuration before MH-E command. |
a1b4049d BW |
503 | (defvar mh-previous-window-config nil) |
504 | ||
505 | ;;Non-nil means next SPC or whatever goes to next undeleted message. | |
bdcfe844 | 506 | (defvar mh-page-to-next-msg-flag nil) |
c26cf6c8 | 507 | |
b6d4ab05 | 508 | ;;; Internal variables local to a folder. |
c26cf6c8 | 509 | |
a1b4049d BW |
510 | ;; Name of current folder, a string. |
511 | (defvar mh-current-folder nil) | |
c26cf6c8 | 512 | |
a1b4049d BW |
513 | ;; Buffer that displays message for this folder. |
514 | (defvar mh-show-buffer nil) | |
c26cf6c8 | 515 | |
a1b4049d BW |
516 | ;; Full path of directory for this folder. |
517 | (defvar mh-folder-filename nil) | |
a1506d29 | 518 | |
a1b4049d BW |
519 | ;;Number of msgs in buffer. |
520 | (defvar mh-msg-count nil) | |
c26cf6c8 | 521 | |
a1b4049d BW |
522 | ;; If non-nil, show the message in a separate window. |
523 | (defvar mh-showing-mode nil) | |
c26cf6c8 | 524 | |
bdcfe844 BW |
525 | (defvar mh-show-mode-map (make-sparse-keymap) |
526 | "Keymap used by the show buffer.") | |
527 | ||
528 | (defvar mh-show-folder-buffer nil | |
529 | "Keeps track of folder whose message is being displayed.") | |
530 | ||
3d7ca223 BW |
531 | (defvar mh-logo-cache nil) |
532 | ||
533 | (defun mh-logo-display () | |
534 | "Modify mode line to display MH-E logo." | |
924df208 BW |
535 | (mh-do-in-gnu-emacs |
536 | (add-text-properties | |
537 | 0 2 | |
538 | `(display ,(or mh-logo-cache | |
539 | (setq mh-logo-cache | |
540 | (mh-funcall-if-exists | |
541 | find-image '((:type xpm :ascent center | |
542 | :file "mh-logo.xpm")))))) | |
543 | (car mode-line-buffer-identification))) | |
544 | (mh-do-in-xemacs | |
545 | (setq modeline-buffer-identification | |
546 | (list | |
547 | (if mh-modeline-glyph | |
548 | (cons modeline-buffer-id-left-extent mh-modeline-glyph) | |
549 | (cons modeline-buffer-id-left-extent "XEmacs%N:")) | |
550 | (cons modeline-buffer-id-right-extent " %17b"))))) | |
551 | ||
b6d4ab05 | 552 | ;;; This holds a documentation string used by describe-mode. |
a1b4049d BW |
553 | (defun mh-showing-mode (&optional arg) |
554 | "Change whether messages should be displayed. | |
555 | With arg, display messages iff ARG is positive." | |
556 | (setq mh-showing-mode | |
c3d9274a BW |
557 | (if (null arg) |
558 | (not mh-showing-mode) | |
559 | (> (prefix-numeric-value arg) 0)))) | |
b6d4ab05 | 560 | |
a1b4049d BW |
561 | ;; The sequences of this folder. An alist of (seq . msgs). |
562 | (defvar mh-seq-list nil) | |
b6d4ab05 | 563 | |
a1b4049d BW |
564 | ;; List of displayed messages to be removed from the Unseen sequence. |
565 | (defvar mh-seen-list nil) | |
b6d4ab05 KH |
566 | |
567 | ;; If non-nil, show buffer contains message with all headers. | |
568 | ;; If nil, show buffer contains message processed normally. | |
a1b4049d BW |
569 | ;; Showing message with headers or normally. |
570 | (defvar mh-showing-with-headers nil) | |
c26cf6c8 | 571 | |
bdcfe844 | 572 | ;;; MH-E macros |
c919c21a | 573 | |
bdcfe844 BW |
574 | (defmacro with-mh-folder-updating (save-modification-flag &rest body) |
575 | "Format is (with-mh-folder-updating (SAVE-MODIFICATION-FLAG) &body BODY). | |
576 | Execute BODY, which can modify the folder buffer without having to | |
577 | worry about file locking or the read-only flag, and return its result. | |
578 | If SAVE-MODIFICATION-FLAG is non-nil, the buffer's modification | |
579 | flag is unchanged, otherwise it is cleared." | |
580 | (setq save-modification-flag (car save-modification-flag)) ; CL style | |
b787fc05 GM |
581 | `(prog1 |
582 | (let ((mh-folder-updating-mod-flag (buffer-modified-p)) | |
c3d9274a BW |
583 | (buffer-read-only nil) |
584 | (buffer-file-name nil)) ;don't let the buffer get locked | |
585 | (prog1 | |
586 | (progn | |
587 | ,@body) | |
588 | (mh-set-folder-modified-p mh-folder-updating-mod-flag))) | |
bdcfe844 | 589 | ,@(if (not save-modification-flag) |
c3d9274a | 590 | '((mh-set-folder-modified-p nil))))) |
c919c21a | 591 | |
924df208 | 592 | (put 'with-mh-folder-updating 'lisp-indent-hook 'defun) |
c919c21a RS |
593 | |
594 | (defmacro mh-in-show-buffer (show-buffer &rest body) | |
bdcfe844 BW |
595 | "Format is (mh-in-show-buffer (SHOW-BUFFER) &body BODY). |
596 | Display buffer SHOW-BUFFER in other window and execute BODY in it. | |
597 | Stronger than `save-excursion', weaker than `save-window-excursion'." | |
c3d9274a | 598 | (setq show-buffer (car show-buffer)) ; CL style |
b787fc05 GM |
599 | `(let ((mh-in-show-buffer-saved-window (selected-window))) |
600 | (switch-to-buffer-other-window ,show-buffer) | |
bdcfe844 | 601 | (if mh-bury-show-buffer-flag (bury-buffer (current-buffer))) |
b787fc05 | 602 | (unwind-protect |
c3d9274a | 603 | (progn |
b787fc05 GM |
604 | ,@body) |
605 | (select-window mh-in-show-buffer-saved-window)))) | |
c919c21a | 606 | |
924df208 | 607 | (put 'mh-in-show-buffer 'lisp-indent-hook 'defun) |
c919c21a | 608 | |
a66894d8 BW |
609 | (defmacro mh-do-at-event-location (event &rest body) |
610 | "Switch to the location of EVENT and execute BODY. | |
611 | After BODY has been executed return to original window. The modification flag | |
612 | of the buffer in the event window is preserved." | |
613 | (let ((event-window (make-symbol "event-window")) | |
614 | (event-position (make-symbol "event-position")) | |
615 | (original-window (make-symbol "original-window")) | |
616 | (original-position (make-symbol "original-position")) | |
617 | (modified-flag (make-symbol "modified-flag"))) | |
618 | `(save-excursion | |
619 | (let* ((,event-window | |
620 | (or (mh-funcall-if-exists posn-window (event-start ,event)) | |
621 | (mh-funcall-if-exists event-window ,event))) | |
622 | (,event-position | |
623 | (or (mh-funcall-if-exists posn-point (event-start ,event)) | |
624 | (mh-funcall-if-exists event-closest-point ,event))) | |
625 | (,original-window (selected-window)) | |
626 | (,original-position (progn | |
627 | (set-buffer (window-buffer ,event-window)) | |
628 | (set-marker (make-marker) (point)))) | |
629 | (,modified-flag (buffer-modified-p)) | |
630 | (buffer-read-only nil)) | |
631 | (unwind-protect (progn | |
632 | (select-window ,event-window) | |
633 | (goto-char ,event-position) | |
634 | ,@body) | |
635 | (set-buffer-modified-p ,modified-flag) | |
636 | (goto-char ,original-position) | |
637 | (set-marker ,original-position nil) | |
638 | (select-window ,original-window)))))) | |
639 | ||
640 | (put 'mh-do-at-event-location 'lisp-indent-hook 'defun) | |
641 | ||
bdcfe844 BW |
642 | (defmacro mh-make-seq (name msgs) |
643 | "Create sequence NAME with the given MSGS." | |
644 | (list 'cons name msgs)) | |
645 | ||
646 | (defmacro mh-seq-name (sequence) | |
647 | "Extract sequence name from the given SEQUENCE." | |
648 | (list 'car sequence)) | |
649 | ||
650 | (defmacro mh-seq-msgs (sequence) | |
651 | "Extract messages from the given SEQUENCE." | |
652 | (list 'cdr sequence)) | |
653 | ||
654 | (defun mh-recenter (arg) | |
655 | "Like recenter but with three improvements: | |
656 | - At the end of the buffer it tries to show fewer empty lines. | |
657 | - operates only if the current buffer is in the selected window. | |
658 | (Commands like `save-some-buffers' can make this false.) | |
659 | - nil ARG means recenter as if prefix argument had been given." | |
660 | (cond ((not (eq (get-buffer-window (current-buffer)) (selected-window))) | |
661 | nil) | |
662 | ((= (point-max) (save-excursion | |
663 | (forward-line (- (/ (window-height) 2) 2)) | |
664 | (point))) | |
665 | (let ((lines-from-end 2)) | |
666 | (save-excursion | |
667 | (while (> (point-max) (progn (forward-line) (point))) | |
668 | (incf lines-from-end))) | |
669 | (recenter (- lines-from-end)))) | |
670 | ;; '(4) is the same as C-u prefix argument. | |
671 | (t (recenter (or arg '(4)))))) | |
672 | ||
673 | (defun mh-start-of-uncleaned-message () | |
674 | "Position uninteresting headers off the top of the window." | |
675 | (let ((case-fold-search t)) | |
676 | (re-search-forward | |
677 | "^To:\\|^Cc:\\|^From:\\|^Subject:\\|^Date:" nil t) | |
678 | (beginning-of-line) | |
679 | (mh-recenter 0))) | |
680 | ||
681 | (defun mh-invalidate-show-buffer () | |
682 | "Invalidate the show buffer so we must update it to use it." | |
683 | (if (get-buffer mh-show-buffer) | |
684 | (save-excursion | |
c3d9274a BW |
685 | (set-buffer mh-show-buffer) |
686 | (mh-unvisit-file)))) | |
bdcfe844 BW |
687 | |
688 | (defun mh-unvisit-file () | |
689 | "Separate current buffer from the message file it was visiting." | |
690 | (or (not (buffer-modified-p)) | |
c3d9274a | 691 | (null buffer-file-name) ;we've been here before |
bdcfe844 | 692 | (yes-or-no-p (format "Message %s modified; flush changes? " |
c3d9274a | 693 | (file-name-nondirectory buffer-file-name))) |
bdcfe844 BW |
694 | (error "Flushing changes not confirmed")) |
695 | (clear-visited-file-modtime) | |
696 | (unlock-buffer) | |
697 | (setq buffer-file-name nil)) | |
a1506d29 | 698 | |
f0d73c14 | 699 | |
bdcfe844 BW |
700 | (defun mh-get-msg-num (error-if-no-message) |
701 | "Return the message number of the displayed message. | |
702 | If the argument ERROR-IF-NO-MESSAGE is non-nil, then complain if the cursor is | |
703 | not pointing to a message." | |
704 | (save-excursion | |
705 | (beginning-of-line) | |
706 | (cond ((looking-at mh-scan-msg-number-regexp) | |
e495eaec BW |
707 | (string-to-number (buffer-substring (match-beginning 1) |
708 | (match-end 1)))) | |
c3d9274a BW |
709 | (error-if-no-message |
710 | (error "Cursor not pointing to message")) | |
711 | (t nil)))) | |
bdcfe844 BW |
712 | |
713 | (defun mh-folder-name-p (name) | |
714 | "Return non-nil if NAME is the name of a folder. | |
715 | A name (a string or symbol) can be a folder name if it begins with \"+\"." | |
716 | (if (symbolp name) | |
717 | (eq (aref (symbol-name name) 0) ?+) | |
718 | (and (> (length name) 0) | |
c3d9274a | 719 | (eq (aref name 0) ?+)))) |
bdcfe844 BW |
720 | |
721 | ||
722 | (defun mh-expand-file-name (filename &optional default) | |
723 | "Expand FILENAME like `expand-file-name', but also handle MH folder names. | |
724 | Any filename that starts with '+' is treated as a folder name. | |
725 | See `expand-file-name' for description of DEFAULT." | |
c3d9274a BW |
726 | (if (mh-folder-name-p filename) |
727 | (expand-file-name (substring filename 1) mh-user-path) | |
728 | (expand-file-name filename default))) | |
b6d4ab05 | 729 | |
c919c21a | 730 | |
bdcfe844 BW |
731 | (defun mh-msg-filename (msg &optional folder) |
732 | "Return the file name of MSG in FOLDER (default current folder)." | |
733 | (expand-file-name (int-to-string msg) | |
c3d9274a BW |
734 | (if folder |
735 | (mh-expand-file-name folder) | |
736 | mh-folder-filename))) | |
c919c21a | 737 | |
bdcfe844 BW |
738 | ;;; Infrastructure to generate show-buffer functions from folder functions |
739 | ;;; XEmacs does not have deactivate-mark? What is the equivalent of | |
740 | ;;; transient-mark-mode for XEmacs? Should we be restoring the mark in the | |
741 | ;;; folder buffer after the operation has been carried out. | |
742 | (defmacro mh-defun-show-buffer (function original-function | |
c3d9274a | 743 | &optional dont-return) |
bdcfe844 BW |
744 | "Define FUNCTION to run ORIGINAL-FUNCTION in folder buffer. |
745 | If the buffer we start in is still visible and DONT-RETURN is nil then switch | |
746 | to it after that." | |
747 | `(defun ,function () | |
748 | ,(format "Calls %s from the message's folder.\n%s\nSee `%s' for more info.\n" | |
749 | original-function | |
750 | (if dont-return "" | |
751 | "When function completes, returns to the show buffer if it is | |
752 | still visible.\n") | |
753 | original-function) | |
754 | (interactive) | |
755 | (when (buffer-live-p (get-buffer mh-show-folder-buffer)) | |
756 | (let ((config (current-window-configuration)) | |
757 | (folder-buffer mh-show-folder-buffer) | |
758 | (normal-exit nil) | |
759 | ,@(if dont-return () '((cur-buffer-name (buffer-name))))) | |
760 | (pop-to-buffer mh-show-folder-buffer nil) | |
761 | (unless (equal (buffer-name | |
762 | (window-buffer (frame-first-window (selected-frame)))) | |
763 | folder-buffer) | |
764 | (delete-other-windows)) | |
765 | (mh-goto-cur-msg t) | |
924df208 | 766 | (mh-funcall-if-exists deactivate-mark) |
bdcfe844 BW |
767 | (unwind-protect |
768 | (prog1 (call-interactively (function ,original-function)) | |
769 | (setq normal-exit t)) | |
924df208 | 770 | (mh-funcall-if-exists deactivate-mark) |
a66894d8 BW |
771 | (when (eq major-mode 'mh-folder-mode) |
772 | (mh-funcall-if-exists hl-line-highlight)) | |
bdcfe844 BW |
773 | (cond ((not normal-exit) |
774 | (set-window-configuration config)) | |
775 | ,(if dont-return | |
776 | `(t (setq mh-previous-window-config config)) | |
777 | `((and (get-buffer cur-buffer-name) | |
778 | (window-live-p (get-buffer-window | |
779 | (get-buffer cur-buffer-name)))) | |
780 | (pop-to-buffer (get-buffer cur-buffer-name) nil))))))))) | |
781 | ||
782 | ;;; Generate interactive functions for the show buffer from the corresponding | |
783 | ;;; folder functions. | |
784 | (mh-defun-show-buffer mh-show-previous-undeleted-msg | |
c3d9274a | 785 | mh-previous-undeleted-msg) |
bdcfe844 | 786 | (mh-defun-show-buffer mh-show-next-undeleted-msg |
c3d9274a | 787 | mh-next-undeleted-msg) |
bdcfe844 BW |
788 | (mh-defun-show-buffer mh-show-quit mh-quit) |
789 | (mh-defun-show-buffer mh-show-delete-msg mh-delete-msg) | |
790 | (mh-defun-show-buffer mh-show-refile-msg mh-refile-msg) | |
791 | (mh-defun-show-buffer mh-show-undo mh-undo) | |
792 | (mh-defun-show-buffer mh-show-execute-commands mh-execute-commands) | |
793 | (mh-defun-show-buffer mh-show-reply mh-reply t) | |
794 | (mh-defun-show-buffer mh-show-redistribute mh-redistribute) | |
795 | (mh-defun-show-buffer mh-show-forward mh-forward t) | |
796 | (mh-defun-show-buffer mh-show-header-display mh-header-display) | |
797 | (mh-defun-show-buffer mh-show-refile-or-write-again | |
c3d9274a | 798 | mh-refile-or-write-again) |
bdcfe844 BW |
799 | (mh-defun-show-buffer mh-show-show mh-show) |
800 | (mh-defun-show-buffer mh-show-write-message-to-file | |
c3d9274a | 801 | mh-write-msg-to-file) |
bdcfe844 | 802 | (mh-defun-show-buffer mh-show-extract-rejected-mail |
c3d9274a | 803 | mh-extract-rejected-mail t) |
bdcfe844 | 804 | (mh-defun-show-buffer mh-show-delete-msg-no-motion |
c3d9274a | 805 | mh-delete-msg-no-motion) |
bdcfe844 BW |
806 | (mh-defun-show-buffer mh-show-first-msg mh-first-msg) |
807 | (mh-defun-show-buffer mh-show-last-msg mh-last-msg) | |
808 | (mh-defun-show-buffer mh-show-copy-msg mh-copy-msg) | |
809 | (mh-defun-show-buffer mh-show-edit-again mh-edit-again t) | |
810 | (mh-defun-show-buffer mh-show-goto-msg mh-goto-msg) | |
811 | (mh-defun-show-buffer mh-show-inc-folder mh-inc-folder) | |
c3d9274a BW |
812 | (mh-defun-show-buffer mh-show-delete-subject-or-thread |
813 | mh-delete-subject-or-thread) | |
814 | (mh-defun-show-buffer mh-show-delete-subject mh-delete-subject) | |
bdcfe844 BW |
815 | (mh-defun-show-buffer mh-show-print-msg mh-print-msg) |
816 | (mh-defun-show-buffer mh-show-send mh-send t) | |
817 | (mh-defun-show-buffer mh-show-toggle-showing mh-toggle-showing t) | |
818 | (mh-defun-show-buffer mh-show-pipe-msg mh-pipe-msg t) | |
819 | (mh-defun-show-buffer mh-show-sort-folder mh-sort-folder) | |
820 | (mh-defun-show-buffer mh-show-visit-folder mh-visit-folder t) | |
821 | (mh-defun-show-buffer mh-show-rescan-folder mh-rescan-folder) | |
822 | (mh-defun-show-buffer mh-show-pack-folder mh-pack-folder) | |
823 | (mh-defun-show-buffer mh-show-kill-folder mh-kill-folder t) | |
824 | (mh-defun-show-buffer mh-show-list-folders mh-list-folders t) | |
825 | (mh-defun-show-buffer mh-show-search-folder mh-search-folder t) | |
826 | (mh-defun-show-buffer mh-show-undo-folder mh-undo-folder) | |
827 | (mh-defun-show-buffer mh-show-delete-msg-from-seq | |
c3d9274a | 828 | mh-delete-msg-from-seq) |
bdcfe844 BW |
829 | (mh-defun-show-buffer mh-show-delete-seq mh-delete-seq) |
830 | (mh-defun-show-buffer mh-show-list-sequences mh-list-sequences) | |
831 | (mh-defun-show-buffer mh-show-narrow-to-seq mh-narrow-to-seq) | |
832 | (mh-defun-show-buffer mh-show-put-msg-in-seq mh-put-msg-in-seq) | |
833 | (mh-defun-show-buffer mh-show-msg-is-in-seq mh-msg-is-in-seq) | |
834 | (mh-defun-show-buffer mh-show-widen mh-widen) | |
a66894d8 BW |
835 | (mh-defun-show-buffer mh-show-narrow-to-subject mh-narrow-to-subject) |
836 | (mh-defun-show-buffer mh-show-narrow-to-from mh-narrow-to-from) | |
837 | (mh-defun-show-buffer mh-show-narrow-to-cc mh-narrow-to-cc) | |
838 | (mh-defun-show-buffer mh-show-narrow-to-range mh-narrow-to-range) | |
839 | (mh-defun-show-buffer mh-show-narrow-to-to mh-narrow-to-to) | |
bdcfe844 BW |
840 | (mh-defun-show-buffer mh-show-store-msg mh-store-msg) |
841 | (mh-defun-show-buffer mh-show-page-digest mh-page-digest) | |
842 | (mh-defun-show-buffer mh-show-page-digest-backwards | |
c3d9274a | 843 | mh-page-digest-backwards) |
bdcfe844 BW |
844 | (mh-defun-show-buffer mh-show-burst-digest mh-burst-digest) |
845 | (mh-defun-show-buffer mh-show-page-msg mh-page-msg) | |
846 | (mh-defun-show-buffer mh-show-previous-page mh-previous-page) | |
847 | (mh-defun-show-buffer mh-show-modify mh-modify t) | |
848 | (mh-defun-show-buffer mh-show-next-button mh-next-button) | |
849 | (mh-defun-show-buffer mh-show-prev-button mh-prev-button) | |
850 | (mh-defun-show-buffer mh-show-toggle-mime-part mh-folder-toggle-mime-part) | |
851 | (mh-defun-show-buffer mh-show-save-mime-part mh-folder-save-mime-part) | |
852 | (mh-defun-show-buffer mh-show-inline-mime-part mh-folder-inline-mime-part) | |
853 | (mh-defun-show-buffer mh-show-toggle-threads mh-toggle-threads) | |
c3d9274a BW |
854 | (mh-defun-show-buffer mh-show-thread-delete mh-thread-delete) |
855 | (mh-defun-show-buffer mh-show-thread-refile mh-thread-refile) | |
bdcfe844 | 856 | (mh-defun-show-buffer mh-show-update-sequences mh-update-sequences) |
c3d9274a BW |
857 | (mh-defun-show-buffer mh-show-next-unread-msg mh-next-unread-msg) |
858 | (mh-defun-show-buffer mh-show-previous-unread-msg mh-previous-unread-msg) | |
859 | (mh-defun-show-buffer mh-show-thread-ancestor mh-thread-ancestor) | |
860 | (mh-defun-show-buffer mh-show-thread-next-sibling mh-thread-next-sibling) | |
861 | (mh-defun-show-buffer mh-show-thread-previous-sibling | |
862 | mh-thread-previous-sibling) | |
863 | (mh-defun-show-buffer mh-show-index-visit-folder mh-index-visit-folder t) | |
924df208 BW |
864 | (mh-defun-show-buffer mh-show-toggle-tick mh-toggle-tick) |
865 | (mh-defun-show-buffer mh-show-narrow-to-tick mh-narrow-to-tick) | |
866 | (mh-defun-show-buffer mh-show-junk-blacklist mh-junk-blacklist) | |
867 | (mh-defun-show-buffer mh-show-junk-whitelist mh-junk-whitelist) | |
868 | (mh-defun-show-buffer mh-show-index-new-messages mh-index-new-messages) | |
a66894d8 BW |
869 | (mh-defun-show-buffer mh-show-index-ticked-messages mh-index-ticked-messages) |
870 | (mh-defun-show-buffer mh-show-index-sequenced-messages | |
871 | mh-index-sequenced-messages) | |
f0d73c14 BW |
872 | (mh-defun-show-buffer mh-show-catchup mh-catchup) |
873 | (mh-defun-show-buffer mh-show-ps-print-toggle-mime mh-ps-print-toggle-mime) | |
874 | (mh-defun-show-buffer mh-show-ps-print-toggle-color mh-ps-print-toggle-color) | |
875 | (mh-defun-show-buffer mh-show-ps-print-toggle-faces mh-ps-print-toggle-faces) | |
876 | (mh-defun-show-buffer mh-show-ps-print-msg-file mh-ps-print-msg-file) | |
877 | (mh-defun-show-buffer mh-show-ps-print-msg mh-ps-print-msg) | |
878 | (mh-defun-show-buffer mh-show-ps-print-msg-show mh-ps-print-msg-show) | |
879 | (mh-defun-show-buffer mh-show-toggle-mime-buttons mh-toggle-mime-buttons) | |
880 | (mh-defun-show-buffer mh-show-display-with-external-viewer | |
881 | mh-display-with-external-viewer) | |
bdcfe844 BW |
882 | |
883 | ;;; Populate mh-show-mode-map | |
884 | (gnus-define-keys mh-show-mode-map | |
885 | " " mh-show-page-msg | |
886 | "!" mh-show-refile-or-write-again | |
924df208 | 887 | "'" mh-show-toggle-tick |
bdcfe844 BW |
888 | "," mh-show-header-display |
889 | "." mh-show-show | |
890 | ">" mh-show-write-message-to-file | |
891 | "?" mh-help | |
892 | "E" mh-show-extract-rejected-mail | |
893 | "M" mh-show-modify | |
894 | "\177" mh-show-previous-page | |
895 | "\C-d" mh-show-delete-msg-no-motion | |
896 | "\t" mh-show-next-button | |
897 | [backtab] mh-show-prev-button | |
898 | "\M-\t" mh-show-prev-button | |
899 | "\ed" mh-show-redistribute | |
900 | "^" mh-show-refile-msg | |
901 | "c" mh-show-copy-msg | |
902 | "d" mh-show-delete-msg | |
903 | "e" mh-show-edit-again | |
904 | "f" mh-show-forward | |
905 | "g" mh-show-goto-msg | |
906 | "i" mh-show-inc-folder | |
c3d9274a | 907 | "k" mh-show-delete-subject-or-thread |
bdcfe844 BW |
908 | "m" mh-show-send |
909 | "n" mh-show-next-undeleted-msg | |
c3d9274a | 910 | "\M-n" mh-show-next-unread-msg |
bdcfe844 BW |
911 | "o" mh-show-refile-msg |
912 | "p" mh-show-previous-undeleted-msg | |
c3d9274a | 913 | "\M-p" mh-show-previous-unread-msg |
bdcfe844 BW |
914 | "q" mh-show-quit |
915 | "r" mh-show-reply | |
916 | "s" mh-show-send | |
917 | "t" mh-show-toggle-showing | |
918 | "u" mh-show-undo | |
919 | "x" mh-show-execute-commands | |
c3d9274a | 920 | "v" mh-show-index-visit-folder |
bdcfe844 BW |
921 | "|" mh-show-pipe-msg) |
922 | ||
923 | (gnus-define-keys (mh-show-folder-map "F" mh-show-mode-map) | |
924 | "?" mh-prefix-help | |
a66894d8 | 925 | "'" mh-index-ticked-messages |
bdcfe844 | 926 | "S" mh-show-sort-folder |
f0d73c14 | 927 | "c" mh-show-catchup |
bdcfe844 BW |
928 | "f" mh-show-visit-folder |
929 | "i" mh-index-search | |
930 | "k" mh-show-kill-folder | |
931 | "l" mh-show-list-folders | |
924df208 | 932 | "n" mh-index-new-messages |
bdcfe844 | 933 | "o" mh-show-visit-folder |
a66894d8 | 934 | "q" mh-show-index-sequenced-messages |
bdcfe844 BW |
935 | "r" mh-show-rescan-folder |
936 | "s" mh-show-search-folder | |
937 | "t" mh-show-toggle-threads | |
938 | "u" mh-show-undo-folder | |
939 | "v" mh-show-visit-folder) | |
940 | ||
941 | (gnus-define-keys (mh-show-sequence-map "S" mh-show-mode-map) | |
a66894d8 | 942 | "'" mh-show-narrow-to-tick |
bdcfe844 BW |
943 | "?" mh-prefix-help |
944 | "d" mh-show-delete-msg-from-seq | |
945 | "k" mh-show-delete-seq | |
946 | "l" mh-show-list-sequences | |
947 | "n" mh-show-narrow-to-seq | |
948 | "p" mh-show-put-msg-in-seq | |
949 | "s" mh-show-msg-is-in-seq | |
950 | "w" mh-show-widen) | |
951 | ||
924df208 BW |
952 | (define-key mh-show-mode-map "I" mh-inc-spool-map) |
953 | ||
954 | (gnus-define-keys (mh-show-junk-map "J" mh-show-mode-map) | |
955 | "?" mh-prefix-help | |
956 | "b" mh-show-junk-blacklist | |
957 | "w" mh-show-junk-whitelist) | |
958 | ||
f0d73c14 BW |
959 | (gnus-define-keys (mh-show-ps-print-map "P" mh-show-mode-map) |
960 | "?" mh-prefix-help | |
961 | "A" mh-show-ps-print-toggle-mime | |
962 | "C" mh-show-ps-print-toggle-color | |
963 | "F" mh-show-ps-print-toggle-faces | |
964 | "M" mh-show-ps-print-toggle-mime | |
965 | "f" mh-show-ps-print-msg-file | |
966 | "l" mh-show-print-msg | |
967 | "p" mh-show-ps-print-msg | |
968 | "s" mh-show-ps-print-msg-show) | |
969 | ||
bdcfe844 BW |
970 | (gnus-define-keys (mh-show-thread-map "T" mh-show-mode-map) |
971 | "?" mh-prefix-help | |
c3d9274a BW |
972 | "u" mh-show-thread-ancestor |
973 | "p" mh-show-thread-previous-sibling | |
974 | "n" mh-show-thread-next-sibling | |
975 | "t" mh-show-toggle-threads | |
976 | "d" mh-show-thread-delete | |
977 | "o" mh-show-thread-refile) | |
bdcfe844 BW |
978 | |
979 | (gnus-define-keys (mh-show-limit-map "/" mh-show-mode-map) | |
924df208 | 980 | "'" mh-show-narrow-to-tick |
bdcfe844 | 981 | "?" mh-prefix-help |
a66894d8 BW |
982 | "c" mh-show-narrow-to-cc |
983 | "f" mh-show-narrow-to-from | |
984 | "r" mh-show-narrow-to-range | |
bdcfe844 | 985 | "s" mh-show-narrow-to-subject |
a66894d8 | 986 | "t" mh-show-narrow-to-to |
bdcfe844 BW |
987 | "w" mh-show-widen) |
988 | ||
989 | (gnus-define-keys (mh-show-extract-map "X" mh-show-mode-map) | |
990 | "?" mh-prefix-help | |
991 | "s" mh-show-store-msg | |
992 | "u" mh-show-store-msg) | |
993 | ||
994 | ;; Untested... | |
995 | (gnus-define-keys (mh-show-digest-map "D" mh-show-mode-map) | |
996 | "?" mh-prefix-help | |
c3d9274a | 997 | " " mh-show-page-digest |
bdcfe844 | 998 | "\177" mh-show-page-digest-backwards |
c3d9274a | 999 | "b" mh-show-burst-digest) |
bdcfe844 BW |
1000 | |
1001 | (gnus-define-keys (mh-show-mime-map "K" mh-show-mode-map) | |
1002 | "?" mh-prefix-help | |
c3d9274a | 1003 | "a" mh-mime-save-parts |
f0d73c14 | 1004 | "e" mh-show-display-with-external-viewer |
bdcfe844 BW |
1005 | "v" mh-show-toggle-mime-part |
1006 | "o" mh-show-save-mime-part | |
1007 | "i" mh-show-inline-mime-part | |
f0d73c14 | 1008 | "t" mh-show-toggle-mime-buttons |
bdcfe844 BW |
1009 | "\t" mh-show-next-button |
1010 | [backtab] mh-show-prev-button | |
1011 | "\M-\t" mh-show-prev-button) | |
1012 | ||
1013 | (easy-menu-define | |
1014 | mh-show-sequence-menu mh-show-mode-map "Menu for MH-E folder-sequence." | |
1015 | '("Sequence" | |
1016 | ["Add Message to Sequence..." mh-show-put-msg-in-seq t] | |
1017 | ["List Sequences for Message" mh-show-msg-is-in-seq t] | |
1018 | ["Delete Message from Sequence..." mh-show-delete-msg-from-seq t] | |
1019 | ["List Sequences in Folder..." mh-show-list-sequences t] | |
1020 | ["Delete Sequence..." mh-show-delete-seq t] | |
1021 | ["Narrow to Sequence..." mh-show-narrow-to-seq t] | |
1022 | ["Widen from Sequence" mh-show-widen t] | |
1023 | "--" | |
1024 | ["Narrow to Subject Sequence" mh-show-narrow-to-subject t] | |
924df208 BW |
1025 | ["Narrow to Tick Sequence" mh-show-narrow-to-tick |
1026 | (save-excursion | |
1027 | (set-buffer mh-show-folder-buffer) | |
1028 | (and mh-tick-seq (mh-seq-msgs (mh-find-seq mh-tick-seq))))] | |
bdcfe844 | 1029 | ["Delete Rest of Same Subject" mh-show-delete-subject t] |
924df208 | 1030 | ["Toggle Tick Mark" mh-show-toggle-tick t] |
bdcfe844 BW |
1031 | "--" |
1032 | ["Push State Out to MH" mh-show-update-sequences t])) | |
1033 | ||
1034 | (easy-menu-define | |
1035 | mh-show-message-menu mh-show-mode-map "Menu for MH-E folder-message." | |
1036 | '("Message" | |
1037 | ["Show Message" mh-show-show t] | |
1038 | ["Show Message with Header" mh-show-header-display t] | |
1039 | ["Next Message" mh-show-next-undeleted-msg t] | |
1040 | ["Previous Message" mh-show-previous-undeleted-msg t] | |
1041 | ["Go to First Message" mh-show-first-msg t] | |
1042 | ["Go to Last Message" mh-show-last-msg t] | |
1043 | ["Go to Message by Number..." mh-show-goto-msg t] | |
1044 | ["Modify Message" mh-show-modify t] | |
1045 | ["Delete Message" mh-show-delete-msg t] | |
1046 | ["Refile Message" mh-show-refile-msg t] | |
1047 | ["Undo Delete/Refile" mh-show-undo t] | |
1048 | ["Process Delete/Refile" mh-show-execute-commands t] | |
1049 | "--" | |
1050 | ["Compose a New Message" mh-send t] | |
1051 | ["Reply to Message..." mh-show-reply t] | |
1052 | ["Forward Message..." mh-show-forward t] | |
1053 | ["Redistribute Message..." mh-show-redistribute t] | |
1054 | ["Edit Message Again" mh-show-edit-again t] | |
1055 | ["Re-edit a Bounced Message" mh-show-extract-rejected-mail t] | |
1056 | "--" | |
1057 | ["Copy Message to Folder..." mh-show-copy-msg t] | |
1058 | ["Print Message" mh-show-print-msg t] | |
1059 | ["Write Message to File..." mh-show-write-msg-to-file t] | |
1060 | ["Pipe Message to Command..." mh-show-pipe-msg t] | |
1061 | ["Unpack Uuencoded Message..." mh-show-store-msg t] | |
1062 | ["Burst Digest Message" mh-show-burst-digest t])) | |
1063 | ||
1064 | (easy-menu-define | |
1065 | mh-show-folder-menu mh-show-mode-map "Menu for MH-E folder." | |
1066 | '("Folder" | |
1067 | ["Incorporate New Mail" mh-show-inc-folder t] | |
1068 | ["Toggle Show/Folder" mh-show-toggle-showing t] | |
1069 | ["Execute Delete/Refile" mh-show-execute-commands t] | |
1070 | ["Rescan Folder" mh-show-rescan-folder t] | |
1071 | ["Thread Folder" mh-show-toggle-threads t] | |
1072 | ["Pack Folder" mh-show-pack-folder t] | |
1073 | ["Sort Folder" mh-show-sort-folder t] | |
1074 | "--" | |
1075 | ["List Folders" mh-show-list-folders t] | |
1076 | ["Visit a Folder..." mh-show-visit-folder t] | |
924df208 | 1077 | ["View New Messages" mh-show-index-new-messages t] |
bdcfe844 BW |
1078 | ["Search a Folder..." mh-show-search-folder t] |
1079 | ["Indexed Search..." mh-index-search t] | |
1080 | "--" | |
1081 | ["Quit MH-E" mh-quit t])) | |
1082 | ||
c919c21a | 1083 | |
c26cf6c8 RS |
1084 | ;;; Ensure new buffers won't get this mode if default-major-mode is nil. |
1085 | (put 'mh-show-mode 'mode-class 'special) | |
1086 | ||
a66894d8 BW |
1087 | ;; Avoid compiler warnings in XEmacs and Emacs 20 |
1088 | (eval-when-compile | |
1089 | (defvar tool-bar-mode) | |
1090 | (defvar tool-bar-map)) | |
924df208 | 1091 | |
a1b4049d | 1092 | (define-derived-mode mh-show-mode text-mode "MH-Show" |
bdcfe844 BW |
1093 | "Major mode for showing messages in MH-E.\\<mh-show-mode-map> |
1094 | The value of `mh-show-mode-hook' is a list of functions to | |
f0d73c14 BW |
1095 | be called, with no arguments, upon entry to this mode. |
1096 | See also `mh-folder-mode'. | |
1097 | ||
1098 | \\{mh-show-mode-map}" | |
a1b4049d | 1099 | (set (make-local-variable 'mail-header-separator) mh-mail-header-separator) |
bdcfe844 | 1100 | (setq paragraph-start (default-value 'paragraph-start)) |
a1b4049d | 1101 | (mh-show-unquote-From) |
bdcfe844 BW |
1102 | (mh-show-xface) |
1103 | (mh-show-addr) | |
a66894d8 BW |
1104 | (setq buffer-invisibility-spec '((vanish . t) t)) |
1105 | (set (make-local-variable 'line-move-ignore-invisible) t) | |
a1b4049d | 1106 | (make-local-variable 'font-lock-defaults) |
c3d9274a | 1107 | ;;(set (make-local-variable 'font-lock-support-mode) nil) |
a1b4049d BW |
1108 | (cond |
1109 | ((equal mh-highlight-citation-p 'font-lock) | |
1110 | (setq font-lock-defaults '(mh-show-font-lock-keywords-with-cite t))) | |
1111 | ((equal mh-highlight-citation-p 'gnus) | |
bdcfe844 BW |
1112 | (setq font-lock-defaults '((mh-show-font-lock-keywords) |
1113 | t nil nil nil | |
1114 | (font-lock-fontify-region-function | |
1115 | . mh-show-font-lock-fontify-region))) | |
a1b4049d BW |
1116 | (mh-gnus-article-highlight-citation)) |
1117 | (t | |
bdcfe844 BW |
1118 | (setq font-lock-defaults '(mh-show-font-lock-keywords t)))) |
1119 | (if (and mh-xemacs-flag | |
c3d9274a | 1120 | font-lock-auto-fontify) |
bdcfe844 | 1121 | (turn-on-font-lock)) |
a66894d8 | 1122 | (set (make-local-variable 'tool-bar-map) mh-show-tool-bar-map) |
924df208 | 1123 | (mh-funcall-if-exists mh-toolbar-init :show) |
bdcfe844 | 1124 | (when mh-decode-mime-flag |
924df208 | 1125 | (mh-make-local-hook 'kill-buffer-hook) |
bdcfe844 BW |
1126 | (add-hook 'kill-buffer-hook 'mh-mime-cleanup nil t)) |
1127 | (easy-menu-add mh-show-sequence-menu) | |
1128 | (easy-menu-add mh-show-message-menu) | |
1129 | (easy-menu-add mh-show-folder-menu) | |
1130 | (make-local-variable 'mh-show-folder-buffer) | |
1131 | (buffer-disable-undo) | |
1132 | (setq buffer-read-only t) | |
cf8402ae | 1133 | (use-local-map mh-show-mode-map)) |
bdcfe844 BW |
1134 | |
1135 | (defun mh-show-addr () | |
1136 | "Use `goto-address'." | |
1137 | (when mh-show-use-goto-addr-flag | |
1138 | (if (not (featurep 'goto-addr)) | |
1139 | (load "goto-addr" t t)) | |
1140 | (if (fboundp 'goto-address) | |
1141 | (goto-address)))) | |
1142 | ||
924df208 BW |
1143 | \f |
1144 | ||
1145 | ;; X-Face and Face display | |
bdcfe844 | 1146 | (defvar mh-show-xface-function |
924df208 | 1147 | (cond ((and mh-xemacs-flag (locate-library "x-face") (not (featurep 'xface))) |
bdcfe844 | 1148 | (load "x-face" t t) |
924df208 BW |
1149 | #'mh-face-display-function) |
1150 | ((>= emacs-major-version 21) | |
1151 | #'mh-face-display-function) | |
bdcfe844 BW |
1152 | (t #'ignore)) |
1153 | "Determine at run time what function should be called to display X-Face.") | |
1154 | ||
924df208 BW |
1155 | (defvar mh-uncompface-executable |
1156 | (and (fboundp 'executable-find) (executable-find "uncompface"))) | |
1157 | ||
1158 | (defun mh-face-to-png (data) | |
1159 | "Convert base64 encoded DATA to png image." | |
1160 | (with-temp-buffer | |
1161 | (insert data) | |
1162 | (ignore-errors (base64-decode-region (point-min) (point-max))) | |
1163 | (buffer-string))) | |
1164 | ||
1165 | (defun mh-uncompface (data) | |
1166 | "Run DATA through `uncompface' to generate bitmap." | |
1167 | (with-temp-buffer | |
1168 | (insert data) | |
1169 | (when (and mh-uncompface-executable | |
1170 | (equal (call-process-region (point-min) (point-max) | |
1171 | mh-uncompface-executable t '(t nil)) | |
1172 | 0)) | |
1173 | (mh-icontopbm) | |
1174 | (buffer-string)))) | |
1175 | ||
1176 | (defun mh-icontopbm () | |
1177 | "Elisp substitute for `icontopbm'." | |
1178 | (goto-char (point-min)) | |
1179 | (let ((end (point-max))) | |
1180 | (while (re-search-forward "0x\\(..\\)\\(..\\)," nil t) | |
1181 | (save-excursion | |
1182 | (goto-char (point-max)) | |
1183 | (insert (string-to-number (match-string 1) 16)) | |
1184 | (insert (string-to-number (match-string 2) 16)))) | |
1185 | (delete-region (point-min) end) | |
1186 | (goto-char (point-min)) | |
1187 | (insert "P4\n48 48\n"))) | |
1188 | ||
1189 | (mh-do-in-xemacs (defvar default-enable-multibyte-characters)) | |
1190 | ||
1191 | (defun mh-face-display-function () | |
f0d73c14 BW |
1192 | "Display a Face, X-Face, or X-Image-URL header field. |
1193 | If more than one of these are present, then the first one found in this order | |
1194 | is used." | |
924df208 BW |
1195 | (save-restriction |
1196 | (goto-char (point-min)) | |
1197 | (re-search-forward "\n\n" (point-max) t) | |
1198 | (narrow-to-region (point-min) (point)) | |
1199 | (let* ((case-fold-search t) | |
1200 | (default-enable-multibyte-characters nil) | |
1201 | (face (message-fetch-field "face" t)) | |
1202 | (x-face (message-fetch-field "x-face" t)) | |
1203 | (url (message-fetch-field "x-image-url" t)) | |
1204 | raw type) | |
1205 | (cond (face (setq raw (mh-face-to-png face) | |
1206 | type 'png)) | |
1207 | (x-face (setq raw (mh-uncompface x-face) | |
1208 | type 'pbm)) | |
f0d73c14 BW |
1209 | (url (setq type 'url)) |
1210 | (t (multiple-value-setq (type raw) (mh-picon-get-image)))) | |
924df208 BW |
1211 | (when type |
1212 | (goto-char (point-min)) | |
1213 | (when (re-search-forward "^from:" (point-max) t) | |
1214 | ;; GNU Emacs | |
1215 | (mh-do-in-gnu-emacs | |
1216 | (if (eq type 'url) | |
1217 | (mh-x-image-url-display url) | |
1218 | (mh-funcall-if-exists | |
1219 | insert-image (create-image | |
1220 | raw type t | |
44d55491 MB |
1221 | :foreground (face-foreground 'mh-show-xface) |
1222 | :background (face-background 'mh-show-xface)) | |
924df208 BW |
1223 | " "))) |
1224 | ;; XEmacs | |
1225 | (mh-do-in-xemacs | |
1226 | (cond | |
1227 | ((eq type 'url) | |
1228 | (mh-x-image-url-display url)) | |
1229 | ((eq type 'png) | |
1230 | (when (featurep 'png) | |
1231 | (set-extent-begin-glyph | |
1232 | (make-extent (point) (point)) | |
1233 | (make-glyph (vector 'png ':data (mh-face-to-png face)))))) | |
1234 | ;; Try internal xface support if available... | |
1235 | ((and (eq type 'pbm) (featurep 'xface)) | |
1236 | (set-glyph-face | |
1237 | (set-extent-begin-glyph | |
1238 | (make-extent (point) (point)) | |
1239 | (make-glyph (vector 'xface ':data (concat "X-Face: " x-face)))) | |
44d55491 | 1240 | 'mh-show-xface)) |
924df208 BW |
1241 | ;; Otherwise try external support with x-face... |
1242 | ((and (eq type 'pbm) | |
1243 | (fboundp 'x-face-xmas-wl-display-x-face) | |
1244 | (fboundp 'executable-find) (executable-find "uncompface")) | |
f0d73c14 BW |
1245 | (mh-funcall-if-exists x-face-xmas-wl-display-x-face)) |
1246 | ;; Picon display | |
1247 | ((and raw (member type '(xpm xbm gif))) | |
1248 | (when (featurep type) | |
1249 | (set-extent-begin-glyph | |
1250 | (make-extent (point) (point)) | |
1251 | (make-glyph (vector type ':data raw)))))) | |
924df208 BW |
1252 | (when raw (insert " ")))))))) |
1253 | ||
bdcfe844 BW |
1254 | (defun mh-show-xface () |
1255 | "Display X-Face." | |
924df208 | 1256 | (when (and window-system mh-show-use-xface-flag |
c3d9274a BW |
1257 | (or mh-decode-mime-flag mhl-formfile |
1258 | mh-clean-message-header-flag)) | |
bdcfe844 | 1259 | (funcall mh-show-xface-function))) |
c26cf6c8 | 1260 | |
924df208 BW |
1261 | \f |
1262 | ||
f0d73c14 BW |
1263 | ;; Picon display |
1264 | ||
1265 | ;;; XXX: This should be customizable. As a side-effect of setting this | |
1266 | ;;; variable, arrange to reset mh-picon-existing-directory-list to 'unset. | |
1267 | (defvar mh-picon-directory-list | |
1268 | '("~/.picons" "~/.picons/users" "~/.picons/usenix" "~/.picons/news" | |
1269 | "~/.picons/domains" "~/.picons/misc" | |
1270 | "/usr/share/picons/" "/usr/share/picons/users" "/usr/share/picons/usenix" | |
1271 | "/usr/share/picons/news" "/usr/share/picons/domains" | |
1272 | "/usr/share/picons/misc") | |
1273 | "List of directories where picons reside. | |
1274 | The directories are searched for in the order they appear in the list.") | |
1275 | ||
1276 | (defvar mh-picon-existing-directory-list 'unset | |
1277 | "List of directories to search in.") | |
1278 | ||
1279 | (defvar mh-picon-cache (make-hash-table :test #'equal)) | |
1280 | ||
1281 | (defvar mh-picon-image-types | |
1282 | (loop for type in '(xpm xbm gif) | |
1283 | when (or (mh-do-in-gnu-emacs | |
1284 | (ignore-errors | |
1285 | (mh-funcall-if-exists image-type-available-p type))) | |
1286 | (mh-do-in-xemacs (featurep type))) | |
1287 | collect type)) | |
1288 | ||
1289 | (defun mh-picon-set-directory-list () | |
1290 | "Update `mh-picon-existing-directory-list' if needed." | |
1291 | (when (eq mh-picon-existing-directory-list 'unset) | |
1292 | (setq mh-picon-existing-directory-list | |
1293 | (loop for x in mh-picon-directory-list | |
1294 | when (file-directory-p x) collect x)))) | |
1295 | ||
1296 | (defun* mh-picon-get-image () | |
1297 | "Find the best possible match and return contents." | |
1298 | (mh-picon-set-directory-list) | |
1299 | (save-restriction | |
1300 | (let* ((from-field (ignore-errors (car (message-tokenize-header | |
1301 | (mh-get-header-field "from:"))))) | |
1302 | (from (car (ignore-errors | |
1303 | (mh-funcall-if-exists ietf-drums-parse-address | |
1304 | from-field)))) | |
1305 | (host (and from | |
1306 | (string-match "\\([^+]*\\)\\(+.*\\)?@\\(.*\\)" from) | |
1307 | (downcase (match-string 3 from)))) | |
1308 | (user (and host (downcase (match-string 1 from)))) | |
1309 | (canonical-address (format "%s@%s" user host)) | |
1310 | (cached-value (gethash canonical-address mh-picon-cache)) | |
1311 | (host-list (and host (delete "" (split-string host "\\.")))) | |
1312 | (match nil)) | |
1313 | (cond (cached-value (return-from mh-picon-get-image cached-value)) | |
1314 | ((not host-list) (return-from mh-picon-get-image nil))) | |
1315 | (setq match | |
1316 | (block 'loop | |
1317 | ;; u@h search | |
1318 | (loop for dir in mh-picon-existing-directory-list | |
1319 | do (loop for type in mh-picon-image-types | |
1320 | ;; [path]user@host | |
1321 | for file1 = (format "%s/%s.%s" | |
1322 | dir canonical-address type) | |
1323 | when (file-exists-p file1) | |
1324 | do (return-from 'loop file1) | |
1325 | ;; [path]user | |
1326 | for file2 = (format "%s/%s.%s" dir user type) | |
1327 | when (file-exists-p file2) | |
1328 | do (return-from 'loop file2) | |
1329 | ;; [path]host | |
1330 | for file3 = (format "%s/%s.%s" dir host type) | |
1331 | when (file-exists-p file3) | |
1332 | do (return-from 'loop file3))) | |
1333 | ;; facedb search | |
1334 | ;; Search order for user@foo.net: | |
1335 | ;; [path]net/foo/user | |
1336 | ;; [path]net/foo/user/face | |
1337 | ;; [path]net/user | |
1338 | ;; [path]net/user/face | |
1339 | ;; [path]net/foo/unknown | |
1340 | ;; [path]net/foo/unknown/face | |
1341 | ;; [path]net/unknown | |
1342 | ;; [path]net/unknown/face | |
1343 | (loop for u in (list user "unknown") | |
1344 | do (loop for dir in mh-picon-existing-directory-list | |
1345 | do (loop for x on host-list by #'cdr | |
1346 | for y = (mh-picon-generate-path x u dir) | |
1347 | do (loop for type in mh-picon-image-types | |
1348 | for z1 = (format "%s.%s" y type) | |
1349 | when (file-exists-p z1) | |
1350 | do (return-from 'loop z1) | |
1351 | for z2 = (format "%s/face.%s" | |
1352 | y type) | |
1353 | when (file-exists-p z2) | |
1354 | do (return-from 'loop z2))))))) | |
1355 | (setf (gethash canonical-address mh-picon-cache) | |
1356 | (mh-picon-file-contents match))))) | |
1357 | ||
1358 | (defun mh-picon-file-contents (file) | |
1359 | "Return details about FILE. | |
1360 | A list of consisting of a symbol for the type of the file and the file | |
1361 | contents as a string is returned. If FILE is nil, then both elements of the | |
1362 | list are nil." | |
1363 | (if (stringp file) | |
1364 | (with-temp-buffer | |
1365 | (let ((type (and (string-match ".*\\.\\(...\\)$" file) | |
1366 | (intern (match-string 1 file))))) | |
1367 | (insert-file-contents-literally file) | |
1368 | (values type (buffer-string)))) | |
1369 | (values nil nil))) | |
1370 | ||
1371 | (defun mh-picon-generate-path (host-list user directory) | |
1372 | "Generate the image file path. | |
1373 | HOST-LIST is the parsed host address of the email address, USER the username | |
1374 | and DIRECTORY is the directory relative to which the path is generated." | |
1375 | (loop with acc = "" | |
1376 | for elem in host-list | |
1377 | do (setq acc (format "%s/%s" elem acc)) | |
1378 | finally return (format "%s/%s%s" directory acc user))) | |
1379 | ||
1380 | \f | |
1381 | ||
924df208 BW |
1382 | ;; X-Image-URL display |
1383 | ||
1384 | (defvar mh-x-image-cache-directory nil | |
1385 | "Directory where X-Image-URL images are cached.") | |
f0d73c14 BW |
1386 | (defvar mh-x-image-scaling-function |
1387 | (cond ((executable-find "convert") | |
1388 | 'mh-x-image-scale-with-convert) | |
1389 | ((and (executable-find "anytopnm") (executable-find "pnmscale") | |
1390 | (executable-find "pnmtopng")) | |
1391 | 'mh-x-image-scale-with-pnm) | |
1392 | (t 'ignore)) | |
1393 | "Function to use to scale image to proper size.") | |
1394 | (defvar mh-wget-executable nil) | |
1395 | (defvar mh-wget-choice | |
1396 | (or (and (setq mh-wget-executable (executable-find "wget")) 'wget) | |
1397 | (and (setq mh-wget-executable (executable-find "fetch")) 'fetch) | |
1398 | (and (setq mh-wget-executable (executable-find "curl")) 'curl))) | |
1399 | (defvar mh-wget-option | |
1400 | (cdr (assoc mh-wget-choice '((curl . "-o") (fetch . "-o") (wget . "-O"))))) | |
924df208 BW |
1401 | (defvar mh-x-image-temp-file nil) |
1402 | (defvar mh-x-image-url nil) | |
1403 | (defvar mh-x-image-marker nil) | |
1404 | (defvar mh-x-image-url-cache-file nil) | |
1405 | ||
f0d73c14 BW |
1406 | ;; Functions to scale image to proper size |
1407 | (defun mh-x-image-scale-with-pnm (input output) | |
1408 | "Scale image in INPUT file and write to OUTPUT file using pnm tools." | |
1409 | (let ((res (shell-command-to-string | |
1410 | (format "anytopnm < %s | pnmscale -xysize 96 48 | pnmtopng > %s" | |
1411 | input output)))) | |
1412 | (unless (equal res "") | |
1413 | (delete-file output)))) | |
1414 | ||
1415 | (defun mh-x-image-scale-with-convert (input output) | |
1416 | "Scale image in INPUT file and write to OUTPUT file using ImageMagick." | |
1417 | (call-process "convert" nil nil nil "-geometry" "96x48" input output)) | |
1418 | ||
924df208 BW |
1419 | (defun mh-x-image-url-cache-canonicalize (url) |
1420 | "Canonicalize URL. | |
f0d73c14 BW |
1421 | Replace the ?/ character with a ?! character and append .png." |
1422 | (format "%s/%s.png" mh-x-image-cache-directory | |
1423 | (with-temp-buffer | |
1424 | (insert url) | |
1425 | (mh-replace-string "/" "!") | |
1426 | (buffer-string)))) | |
1427 | ||
1428 | (defun mh-x-image-set-download-state (file data) | |
1429 | "Setup a symbolic link from FILE to DATA." | |
1430 | (if data | |
1431 | (make-symbolic-link (symbol-name data) file t) | |
1432 | (delete-file file))) | |
1433 | ||
1434 | (defun mh-x-image-get-download-state (file) | |
1435 | "Check the state of FILE by following any symbolic links." | |
1436 | (unless (file-exists-p mh-x-image-cache-directory) | |
1437 | (call-process "mkdir" nil nil nil mh-x-image-cache-directory)) | |
1438 | (cond ((file-symlink-p file) | |
1439 | (intern (file-name-nondirectory (file-chase-links file)))) | |
1440 | ((not (file-exists-p file)) nil) | |
1441 | (t 'ok))) | |
924df208 BW |
1442 | |
1443 | (defun mh-x-image-url-fetch-image (url cache-file marker sentinel) | |
1444 | "Fetch and display the image specified by URL. | |
1445 | After the image is fetched, it is stored in CACHE-FILE. It will be displayed | |
1446 | in a buffer and position specified by MARKER. The actual display is carried | |
1447 | out by the SENTINEL function." | |
f0d73c14 BW |
1448 | (if mh-wget-executable |
1449 | (let ((buffer (get-buffer-create (generate-new-buffer-name | |
1450 | mh-temp-fetch-buffer))) | |
1451 | (filename (or (mh-funcall-if-exists make-temp-file "mhe-fetch") | |
1452 | (expand-file-name (make-temp-name "~/mhe-fetch"))))) | |
924df208 BW |
1453 | (save-excursion |
1454 | (set-buffer buffer) | |
1455 | (set (make-local-variable 'mh-x-image-url-cache-file) cache-file) | |
1456 | (set (make-local-variable 'mh-x-image-marker) marker) | |
1457 | (set (make-local-variable 'mh-x-image-temp-file) filename)) | |
1458 | (set-process-sentinel | |
f0d73c14 BW |
1459 | (start-process "*mh-x-image-url-fetch*" buffer |
1460 | mh-wget-executable mh-wget-option filename url) | |
924df208 | 1461 | sentinel)) |
f0d73c14 BW |
1462 | ;; Temporary failure |
1463 | (mh-x-image-set-download-state cache-file 'try-again))) | |
924df208 BW |
1464 | |
1465 | (defun mh-x-image-display (image marker) | |
1466 | "Display IMAGE at MARKER." | |
1467 | (save-excursion | |
1468 | (set-buffer (marker-buffer marker)) | |
1469 | (let ((buffer-read-only nil) | |
1470 | (default-enable-multibyte-characters nil) | |
1471 | (buffer-modified-flag (buffer-modified-p))) | |
1472 | (unwind-protect | |
f0d73c14 BW |
1473 | (when (and (file-readable-p image) (not (file-symlink-p image)) |
1474 | (eq marker mh-x-image-marker)) | |
924df208 BW |
1475 | (goto-char marker) |
1476 | (mh-do-in-gnu-emacs | |
1477 | (mh-funcall-if-exists insert-image (create-image image 'png))) | |
1478 | (mh-do-in-xemacs | |
1479 | (when (featurep 'png) | |
1480 | (set-extent-begin-glyph | |
1481 | (make-extent (point) (point)) | |
1482 | (make-glyph | |
1483 | (vector 'png ':data (with-temp-buffer | |
1484 | (insert-file-contents-literally image) | |
1485 | (buffer-string)))))))) | |
1486 | (set-buffer-modified-p buffer-modified-flag))))) | |
1487 | ||
1488 | (defun mh-x-image-scale-and-display (process change) | |
1489 | "When the wget PROCESS terminates scale and display image. | |
1490 | The argument CHANGE is ignored." | |
1491 | (when (eq (process-status process) 'exit) | |
1492 | (let (marker temp-file cache-filename wget-buffer) | |
1493 | (save-excursion | |
1494 | (set-buffer (setq wget-buffer (process-buffer process))) | |
1495 | (setq marker mh-x-image-marker | |
1496 | cache-filename mh-x-image-url-cache-file | |
1497 | temp-file mh-x-image-temp-file)) | |
f0d73c14 BW |
1498 | (cond |
1499 | ;; Check if we have `convert' | |
1500 | ((eq mh-x-image-scaling-function 'ignore) | |
1501 | (message "The `convert' program is needed to display X-Image-URL") | |
1502 | (mh-x-image-set-download-state cache-filename 'try-again)) | |
1503 | ;; Scale fetched image | |
1504 | ((and (funcall mh-x-image-scaling-function temp-file cache-filename) | |
1505 | nil)) | |
1506 | ;; Attempt to display image if we have it | |
1507 | ((file-exists-p cache-filename) | |
1508 | (mh-x-image-display cache-filename marker)) | |
1509 | ;; We didn't find the image. Should we try to display it the next time? | |
1510 | (t (mh-x-image-set-download-state cache-filename 'try-again))) | |
924df208 BW |
1511 | (ignore-errors |
1512 | (set-marker marker nil) | |
1513 | (delete-process process) | |
1514 | (kill-buffer wget-buffer) | |
1515 | (delete-file temp-file))))) | |
1516 | ||
f0d73c14 BW |
1517 | (defun mh-x-image-url-sane-p (url) |
1518 | "Check if URL is something sensible." | |
1519 | (let ((len (length url))) | |
1520 | (cond ((< len 5) nil) | |
1521 | ((not (equal (substring url 0 5) "http:")) nil) | |
1522 | ((> len 100) nil) | |
1523 | (t t)))) | |
1524 | ||
924df208 BW |
1525 | (defun mh-x-image-url-display (url) |
1526 | "Display image from location URL. | |
1527 | If the URL isn't present in the cache then it is fetched with wget." | |
f0d73c14 BW |
1528 | (let* ((cache-filename (mh-x-image-url-cache-canonicalize url)) |
1529 | (state (mh-x-image-get-download-state cache-filename)) | |
1530 | (marker (set-marker (make-marker) (point)))) | |
1531 | (set (make-local-variable 'mh-x-image-marker) marker) | |
1532 | (cond ((not (mh-x-image-url-sane-p url))) | |
1533 | ((eq state 'ok) | |
924df208 | 1534 | (mh-x-image-display cache-filename marker)) |
f0d73c14 BW |
1535 | ((or (not mh-wget-executable) |
1536 | (eq mh-x-image-scaling-function 'ignore))) | |
1537 | ((eq state 'never)) | |
924df208 BW |
1538 | ((not mh-fetch-x-image-url) |
1539 | (set-marker marker nil)) | |
f0d73c14 BW |
1540 | ((eq state 'try-again) |
1541 | (mh-x-image-set-download-state cache-filename nil) | |
1542 | (mh-x-image-url-fetch-image url cache-filename marker | |
1543 | 'mh-x-image-scale-and-display)) | |
1544 | ((and (eq mh-fetch-x-image-url 'ask) | |
1545 | (not (y-or-n-p (format "Fetch %s? " url)))) | |
1546 | (mh-x-image-set-download-state cache-filename 'never)) | |
1547 | ((eq state nil) | |
924df208 BW |
1548 | (mh-x-image-url-fetch-image url cache-filename marker |
1549 | 'mh-x-image-scale-and-display))))) | |
1550 | ||
1551 | \f | |
1552 | ||
c26cf6c8 | 1553 | (defun mh-maybe-show (&optional msg) |
bdcfe844 BW |
1554 | "Display message at cursor, but only if in show mode. |
1555 | If optional arg MSG is non-nil, display that message instead." | |
a1b4049d | 1556 | (if mh-showing-mode (mh-show msg))) |
c26cf6c8 | 1557 | |
f0d73c14 | 1558 | (defun mh-show (&optional message redisplay-flag) |
bdcfe844 BW |
1559 | "Show message at cursor. |
1560 | If optional argument MESSAGE is non-nil, display that message instead. | |
a66894d8 BW |
1561 | Force a two-window display with the folder window on top (size given by the |
1562 | variable `mh-summary-height') and the show buffer below it. | |
c919c21a RS |
1563 | If the message is already visible, display the start of the message. |
1564 | ||
f0d73c14 BW |
1565 | If REDISPLAY-FLAG is non-nil, the default when called interactively, the |
1566 | message is redisplayed even if the show buffer was already displaying the | |
1567 | correct message. | |
1568 | ||
c919c21a | 1569 | Display of the message is controlled by setting the variables |
bdcfe844 | 1570 | `mh-clean-message-header-flag' and `mhl-formfile'. The default behavior is |
c919c21a RS |
1571 | to scroll uninteresting headers off the top of the window. |
1572 | Type \"\\[mh-header-display]\" to see the message with all its headers." | |
f0d73c14 BW |
1573 | (interactive (list nil t)) |
1574 | (when (or redisplay-flag | |
1575 | (and mh-showing-with-headers | |
1576 | (or mhl-formfile mh-clean-message-header-flag))) | |
1577 | (mh-invalidate-show-buffer)) | |
b6d4ab05 | 1578 | (mh-show-msg message)) |
c26cf6c8 | 1579 | |
f0d73c14 | 1580 | (defun mh-show-mouse (event) |
a1b4049d BW |
1581 | "Move point to mouse EVENT and show message." |
1582 | (interactive "e") | |
f0d73c14 | 1583 | (mouse-set-point event) |
a1b4049d | 1584 | (mh-show)) |
c26cf6c8 | 1585 | |
a66894d8 BW |
1586 | (defun mh-summary-height () |
1587 | "Return ideal value for the variable `mh-summary-height'. | |
1588 | The current frame height is taken into consideration." | |
1589 | (or (and (fboundp 'frame-height) | |
1590 | (> (frame-height) 24) | |
1591 | (min 10 (/ (frame-height) 6))) | |
1592 | 4)) | |
1593 | ||
c26cf6c8 | 1594 | (defun mh-show-msg (msg) |
bdcfe844 BW |
1595 | "Show MSG. |
1596 | The value of `mh-show-hook' is a list of functions to be called, with no | |
1597 | arguments, after the message has been displayed." | |
c26cf6c8 RS |
1598 | (if (not msg) |
1599 | (setq msg (mh-get-msg-num t))) | |
a1b4049d | 1600 | (mh-showing-mode t) |
bdcfe844 | 1601 | (setq mh-page-to-next-msg-flag nil) |
c26cf6c8 | 1602 | (let ((folder mh-current-folder) |
a66894d8 | 1603 | (folders (list mh-current-folder)) |
c3d9274a | 1604 | (clean-message-header mh-clean-message-header-flag) |
f0d73c14 BW |
1605 | (show-window (get-buffer-window mh-show-buffer)) |
1606 | (display-mime-buttons-flag mh-display-buttons-for-inline-parts-flag)) | |
056e1e3f | 1607 | (if (not (eq (next-window (minibuffer-window)) (selected-window))) |
c3d9274a | 1608 | (delete-other-windows)) ; force ourself to the top window |
c26cf6c8 | 1609 | (mh-in-show-buffer (mh-show-buffer) |
f0d73c14 | 1610 | (setq mh-display-buttons-for-inline-parts-flag display-mime-buttons-flag) |
c26cf6c8 | 1611 | (if (and show-window |
c3d9274a BW |
1612 | (equal (mh-msg-filename msg folder) buffer-file-name)) |
1613 | (progn ;just back up to start | |
1614 | (goto-char (point-min)) | |
1615 | (if (not clean-message-header) | |
1616 | (mh-start-of-uncleaned-message))) | |
a66894d8 BW |
1617 | (mh-display-msg msg folder))) |
1618 | (if (not (= (1+ (window-height)) (frame-height))) ;not horizontally split | |
1619 | (shrink-window (- (window-height) (or mh-summary-height | |
1620 | (mh-summary-height))))) | |
1621 | (mh-recenter nil) | |
f0d73c14 BW |
1622 | ;; The following line is a nop which forces update of the scan line so |
1623 | ;; that font-lock will update it (if needed)... | |
1624 | (mh-notate nil nil mh-cmd-note) | |
a66894d8 BW |
1625 | (if (not (memq msg mh-seen-list)) |
1626 | (setq mh-seen-list (cons msg mh-seen-list))) | |
1627 | (when mh-update-sequences-after-mh-show-flag | |
1628 | (mh-update-sequences) | |
1629 | (when mh-index-data | |
1630 | (setq folders | |
1631 | (append (mh-index-delete-from-sequence mh-unseen-seq (list msg)) | |
1632 | folders))) | |
1633 | (when (mh-speed-flists-active-p) | |
1634 | (apply #'mh-speed-flists t folders))) | |
1635 | (run-hooks 'mh-show-hook))) | |
c26cf6c8 | 1636 | |
bdcfe844 BW |
1637 | (defun mh-modify (&optional message) |
1638 | "Edit message at cursor. | |
1639 | If optional argument MESSAGE is non-nil, edit that message instead. | |
a66894d8 BW |
1640 | Force a two-window display with the folder window on top (size given by the |
1641 | value of the variable `mh-summary-height') and the message editing buffer below | |
1642 | it. | |
bdcfe844 BW |
1643 | |
1644 | The message is displayed in raw form." | |
1645 | (interactive) | |
1646 | (let* ((message (or message (mh-get-msg-num t))) | |
1647 | (msg-filename (mh-msg-filename message)) | |
1648 | edit-buffer) | |
1649 | (when (not (file-exists-p msg-filename)) | |
1650 | (error "Message %d does not exist" message)) | |
1651 | ||
1652 | ;; Invalidate the show buffer if it is showing the same message that is | |
1653 | ;; to be edited. | |
1654 | (when (and (buffer-live-p (get-buffer mh-show-buffer)) | |
1655 | (equal (save-excursion (set-buffer mh-show-buffer) | |
1656 | buffer-file-name) | |
1657 | msg-filename)) | |
1658 | (mh-invalidate-show-buffer)) | |
1659 | ||
1660 | ;; Edit message | |
1661 | (find-file msg-filename) | |
1662 | (setq edit-buffer (current-buffer)) | |
1663 | ||
1664 | ;; Set buffer properties | |
1665 | (mh-letter-mode) | |
1666 | (use-local-map text-mode-map) | |
1667 | ||
1668 | ;; Just show the edit buffer... | |
1669 | (delete-other-windows) | |
1670 | (switch-to-buffer edit-buffer))) | |
c26cf6c8 | 1671 | |
a1b4049d | 1672 | (defun mh-show-unquote-From () |
bdcfe844 | 1673 | "Decode >From at beginning of lines for `mh-show-mode'." |
a1b4049d BW |
1674 | (save-excursion |
1675 | (let ((modified (buffer-modified-p)) | |
e495eaec BW |
1676 | (case-fold-search nil) |
1677 | (buffer-read-only nil)) | |
924df208 | 1678 | (goto-char (mh-mail-header-end)) |
a1b4049d BW |
1679 | (while (re-search-forward "^>From" nil t) |
1680 | (replace-match "From")) | |
1681 | (set-buffer-modified-p modified)))) | |
1682 | ||
bdcfe844 BW |
1683 | (defun mh-msg-folder (folder-name) |
1684 | "Return the name of the buffer for FOLDER-NAME." | |
1685 | folder-name) | |
1686 | ||
1687 | (defun mh-display-msg (msg-num folder-name) | |
1688 | "Display MSG-NUM of FOLDER-NAME. | |
1689 | Sets the current buffer to the show buffer." | |
1690 | (let ((folder (mh-msg-folder folder-name))) | |
1691 | (set-buffer folder) | |
1692 | ;; When Gnus uses external displayers it has to keep handles longer. So | |
1693 | ;; we will delete these handles when mh-quit is called on the folder. It | |
1694 | ;; would be nicer if there are weak pointers in emacs lisp, then we could | |
1695 | ;; get the garbage collector to do this for us. | |
1696 | (unless (mh-buffer-data) | |
1697 | (setf (mh-buffer-data) (mh-make-buffer-data))) | |
1698 | ;; Bind variables in folder buffer in case they are local | |
1699 | (let ((formfile mhl-formfile) | |
1700 | (clean-message-header mh-clean-message-header-flag) | |
f0d73c14 BW |
1701 | (invisible-headers mh-invisible-header-fields-compiled) |
1702 | (visible-headers nil) | |
bdcfe844 BW |
1703 | (msg-filename (mh-msg-filename msg-num folder-name)) |
1704 | (show-buffer mh-show-buffer) | |
1705 | (mm-inline-media-tests mh-mm-inline-media-tests)) | |
1706 | (if (not (file-exists-p msg-filename)) | |
c3d9274a | 1707 | (error "Message %d does not exist" msg-num)) |
bdcfe844 | 1708 | (if (and (> mh-show-maximum-size 0) |
c3d9274a BW |
1709 | (> (elt (file-attributes msg-filename) 7) |
1710 | mh-show-maximum-size) | |
1711 | (not (y-or-n-p | |
1712 | (format | |
1713 | "Message %d (%d bytes) exceeds %d bytes. Display it? " | |
1714 | msg-num (elt (file-attributes msg-filename) 7) | |
1715 | mh-show-maximum-size)))) | |
1716 | (error "Message %d not displayed" msg-num)) | |
bdcfe844 BW |
1717 | (set-buffer show-buffer) |
1718 | (cond ((not (equal msg-filename buffer-file-name)) | |
1719 | (mh-unvisit-file) | |
1720 | (setq buffer-read-only nil) | |
1721 | (erase-buffer) | |
1722 | ;; Changing contents, so this hook needs to be reinitialized. | |
1723 | ;; pgp.el uses this. | |
1724 | (if (boundp 'write-contents-hooks) ;Emacs 19 | |
c3d9274a | 1725 | (kill-local-variable 'write-contents-hooks)) |
bdcfe844 | 1726 | (if formfile |
c3d9274a | 1727 | (mh-exec-lib-cmd-output "mhl" "-nobell" "-noclear" |
bdcfe844 | 1728 | (if (stringp formfile) |
c3d9274a | 1729 | (list "-form" formfile)) |
bdcfe844 | 1730 | msg-filename) |
3d7ca223 | 1731 | (insert-file-contents-literally msg-filename)) |
bdcfe844 BW |
1732 | ;; Cleanup old mime handles |
1733 | (mh-mime-cleanup) | |
1734 | ;; Use mm to display buffer | |
1735 | (when (and mh-decode-mime-flag (not formfile)) | |
1736 | (mh-add-missing-mime-version-header) | |
1737 | (setf (mh-buffer-data) (mh-make-buffer-data)) | |
1738 | (mh-mime-display)) | |
924df208 | 1739 | (mh-show-mode) |
bdcfe844 BW |
1740 | ;; Header cleanup |
1741 | (goto-char (point-min)) | |
1742 | (cond (clean-message-header | |
1743 | (mh-clean-msg-header (point-min) | |
1744 | invisible-headers | |
1745 | visible-headers) | |
1746 | (goto-char (point-min))) | |
1747 | (t | |
1748 | (mh-start-of-uncleaned-message))) | |
924df208 | 1749 | (mh-decode-message-header) |
bdcfe844 BW |
1750 | ;; the parts of visiting we want to do (no locking) |
1751 | (or (eq buffer-undo-list t) ;don't save undo info for prev msgs | |
1752 | (setq buffer-undo-list nil)) | |
1753 | (set-buffer-auto-saved) | |
1754 | ;; the parts of set-visited-file-name we want to do (no locking) | |
1755 | (setq buffer-file-name msg-filename) | |
1756 | (setq buffer-backed-up nil) | |
1757 | (auto-save-mode 1) | |
1758 | (set-mark nil) | |
bdcfe844 BW |
1759 | (unwind-protect |
1760 | (when (and mh-decode-mime-flag (not formfile)) | |
1761 | (setq buffer-read-only nil) | |
1762 | (mh-display-smileys) | |
1763 | (mh-display-emphasis)) | |
1764 | (setq buffer-read-only t)) | |
1765 | (set-buffer-modified-p nil) | |
1766 | (setq mh-show-folder-buffer folder) | |
1767 | (setq mode-line-buffer-identification | |
1768 | (list (format mh-show-buffer-mode-line-buffer-id | |
1769 | folder-name msg-num))) | |
3d7ca223 | 1770 | (mh-logo-display) |
bdcfe844 BW |
1771 | (set-buffer folder) |
1772 | (setq mh-showing-with-headers nil)))))) | |
c26cf6c8 RS |
1773 | |
1774 | (defun mh-clean-msg-header (start invisible-headers visible-headers) | |
bdcfe844 BW |
1775 | "Flush extraneous lines in message header. |
1776 | Header is cleaned from START to the end of the message header. | |
1777 | INVISIBLE-HEADERS contains a regular expression specifying lines to delete | |
1778 | from the header. VISIBLE-HEADERS contains a regular expression specifying the | |
f0d73c14 BW |
1779 | lines to display. INVISIBLE-HEADERS is ignored if VISIBLE-HEADERS is non-nil. |
1780 | ||
1781 | Note that MH-E no longer supports the `mh-visible-headers' variable, so | |
1782 | this function could be trimmed of this feature too." | |
a1b4049d | 1783 | (let ((case-fold-search t) |
924df208 | 1784 | (buffer-read-only nil) |
a1b4049d | 1785 | (after-change-functions nil)) ;Work around emacs-20 font-lock bug |
c3d9274a | 1786 | ;causing an endless loop. |
c26cf6c8 RS |
1787 | (save-restriction |
1788 | (goto-char start) | |
1789 | (if (search-forward "\n\n" nil 'move) | |
c3d9274a | 1790 | (backward-char 1)) |
c26cf6c8 RS |
1791 | (narrow-to-region start (point)) |
1792 | (goto-char (point-min)) | |
1793 | (if visible-headers | |
c3d9274a BW |
1794 | (while (< (point) (point-max)) |
1795 | (cond ((looking-at visible-headers) | |
1796 | (forward-line 1) | |
1797 | (while (looking-at "[ \t]") (forward-line 1))) | |
1798 | (t | |
1799 | (mh-delete-line 1) | |
1800 | (while (looking-at "[ \t]") | |
1801 | (mh-delete-line 1))))) | |
1802 | (while (re-search-forward invisible-headers nil t) | |
1803 | (beginning-of-line) | |
1804 | (mh-delete-line 1) | |
1805 | (while (looking-at "[ \t]") | |
a66894d8 BW |
1806 | (mh-delete-line 1))))) |
1807 | (let ((mh-compose-skipped-header-fields ())) | |
1808 | (mh-letter-hide-all-skipped-fields)) | |
1809 | (unlock-buffer))) | |
c26cf6c8 | 1810 | |
c26cf6c8 | 1811 | (defun mh-delete-line (lines) |
bdcfe844 | 1812 | "Delete the next LINES lines." |
b3470e4c | 1813 | (delete-region (point) (progn (forward-line lines) (point)))) |
c26cf6c8 | 1814 | |
c26cf6c8 | 1815 | (defun mh-notate (msg notation offset) |
bdcfe844 | 1816 | "Mark MSG with the character NOTATION at position OFFSET. |
924df208 BW |
1817 | Null MSG means the message at cursor. |
1818 | If NOTATION is nil then no change in the buffer occurs." | |
c26cf6c8 RS |
1819 | (save-excursion |
1820 | (if (or (null msg) | |
c3d9274a BW |
1821 | (mh-goto-msg msg t t)) |
1822 | (with-mh-folder-updating (t) | |
1823 | (beginning-of-line) | |
1824 | (forward-char offset) | |
f0d73c14 | 1825 | (let* ((change-stack-flag (and (equal offset (1+ mh-cmd-note)) |
a66894d8 BW |
1826 | (not (eq notation mh-note-seq)))) |
1827 | (msg (and change-stack-flag (or msg (mh-get-msg-num nil)))) | |
1828 | (stack (and msg (gethash msg mh-sequence-notation-history))) | |
1829 | (notation (or notation (char-after)))) | |
1830 | (if stack | |
1831 | ;; The presence of the stack tells us that we don't need to | |
1832 | ;; notate the message, since the notation would be replaced | |
1833 | ;; by a sequence notation. So we will just put the notation | |
1834 | ;; at the bottom of the stack. If the sequence is deleted, | |
1835 | ;; the correct notation will be shown. | |
1836 | (setf (gethash msg mh-sequence-notation-history) | |
f0d73c14 | 1837 | (reverse (cons notation (cdr (reverse stack))))) |
a66894d8 BW |
1838 | ;; Since we don't have any sequence notations in the way, just |
1839 | ;; notate the scan line. | |
1840 | (delete-char 1) | |
1841 | (insert notation)) | |
1842 | (when change-stack-flag | |
1843 | (mh-thread-update-scan-line-map msg notation offset))))))) | |
c26cf6c8 | 1844 | |
c26cf6c8 RS |
1845 | (defun mh-goto-msg (number &optional no-error-if-no-message dont-show) |
1846 | "Position the cursor at message NUMBER. | |
a1b4049d BW |
1847 | Optional non-nil second argument NO-ERROR-IF-NO-MESSAGE means return nil |
1848 | instead of signaling an error if message does not exist; in this case, the | |
1849 | cursor is positioned near where the message would have been. | |
1850 | Non-nil third argument DONT-SHOW means not to show the message." | |
b6d4ab05 | 1851 | (interactive "NGo to message: ") |
bdcfe844 BW |
1852 | (setq number (prefix-numeric-value number)) |
1853 | (let ((point (point)) | |
1854 | (return-value t)) | |
1855 | (goto-char (point-min)) | |
1856 | (unless (re-search-forward (format "^[ ]*%s[^0-9]+" number) nil t) | |
1857 | (goto-char point) | |
1858 | (unless no-error-if-no-message | |
1859 | (error "No message %d" number)) | |
1860 | (setq return-value nil)) | |
1861 | (beginning-of-line) | |
1862 | (or dont-show (not return-value) (mh-maybe-show number)) | |
1863 | return-value)) | |
c26cf6c8 | 1864 | |
b6d4ab05 | 1865 | (defun mh-get-profile-field (field) |
bdcfe844 BW |
1866 | "Find and return the value of FIELD in the current buffer. |
1867 | Returns nil if the field is not in the buffer." | |
b6d4ab05 KH |
1868 | (let ((case-fold-search t)) |
1869 | (goto-char (point-min)) | |
1870 | (cond ((not (re-search-forward (format "^%s" field) nil t)) nil) | |
c3d9274a BW |
1871 | ((looking-at "[\t ]*$") nil) |
1872 | (t | |
1873 | (re-search-forward "[\t ]*\\([^\t \n].*\\)$" nil t) | |
1874 | (let ((start (match-beginning 1))) | |
1875 | (end-of-line) | |
1876 | (buffer-substring start (point))))))) | |
b6d4ab05 | 1877 | |
7c3b9c62 RS |
1878 | (defvar mh-find-path-run nil |
1879 | "Non-nil if `mh-find-path' has been run already.") | |
b6d4ab05 | 1880 | |
c26cf6c8 | 1881 | (defun mh-find-path () |
f0d73c14 | 1882 | "Set variables from user's MH profile. |
bdcfe844 BW |
1883 | Set `mh-user-path', `mh-draft-folder', `mh-unseen-seq', `mh-previous-seq', |
1884 | `mh-inbox' from user's MH profile. | |
1885 | The value of `mh-find-path-hook' is a list of functions to be called, with no | |
1886 | arguments, after these variable have been set." | |
f0d73c14 | 1887 | (mh-variants) |
7c3b9c62 RS |
1888 | (unless mh-find-path-run |
1889 | (setq mh-find-path-run t) | |
f0d73c14 BW |
1890 | (save-excursion |
1891 | ;; Be sure profile is fully expanded before switching buffers | |
1892 | (let ((profile (expand-file-name (or (getenv "MH") "~/.mh_profile")))) | |
1893 | (set-buffer (get-buffer-create mh-temp-buffer)) | |
1894 | (setq buffer-offer-save nil) ;for people who set default to t | |
1895 | (erase-buffer) | |
1896 | (condition-case err | |
1897 | (insert-file-contents profile) | |
1898 | (file-error | |
1899 | (mh-install profile err))) | |
1900 | (setq mh-user-path (mh-get-profile-field "Path:")) | |
1901 | (if (not mh-user-path) | |
1902 | (setq mh-user-path "Mail")) | |
1903 | (setq mh-user-path | |
1904 | (file-name-as-directory | |
1905 | (expand-file-name mh-user-path (expand-file-name "~")))) | |
1906 | (unless mh-x-image-cache-directory | |
1907 | (setq mh-x-image-cache-directory | |
1908 | (expand-file-name ".mhe-x-image-cache" mh-user-path))) | |
1909 | (setq mh-draft-folder (mh-get-profile-field "Draft-Folder:")) | |
1910 | (if mh-draft-folder | |
1911 | (progn | |
1912 | (if (not (mh-folder-name-p mh-draft-folder)) | |
1913 | (setq mh-draft-folder (format "+%s" mh-draft-folder))) | |
1914 | (if (not (file-exists-p (mh-expand-file-name mh-draft-folder))) | |
1915 | (error | |
1916 | "Draft folder \"%s\" not found. Create it and try again" | |
1917 | (mh-expand-file-name mh-draft-folder))))) | |
1918 | (setq mh-inbox (mh-get-profile-field "Inbox:")) | |
1919 | (cond ((not mh-inbox) | |
1920 | (setq mh-inbox "+inbox")) | |
1921 | ((not (mh-folder-name-p mh-inbox)) | |
1922 | (setq mh-inbox (format "+%s" mh-inbox)))) | |
1923 | (setq mh-unseen-seq (mh-get-profile-field "Unseen-Sequence:")) | |
1924 | (if mh-unseen-seq | |
1925 | (setq mh-unseen-seq (intern mh-unseen-seq)) | |
1926 | (setq mh-unseen-seq 'unseen)) ;old MH default? | |
1927 | (setq mh-previous-seq (mh-get-profile-field "Previous-Sequence:")) | |
1928 | (if mh-previous-seq | |
1929 | (setq mh-previous-seq (intern mh-previous-seq))) | |
1930 | (run-hooks 'mh-find-path-hook) | |
1931 | (mh-collect-folder-names))))) | |
c26cf6c8 | 1932 | |
f209429d RS |
1933 | (defun mh-file-command-p (file) |
1934 | "Return t if file FILE is the name of a executable regular file." | |
1935 | (and (file-regular-p file) (file-executable-p file))) | |
1936 | ||
c3d9274a | 1937 | (defvar mh-no-install nil) ;do not run install-mh |
b3470e4c | 1938 | |
c26cf6c8 | 1939 | (defun mh-install (profile error-val) |
bdcfe844 BW |
1940 | "Initialize the MH environment. |
1941 | This is called if we fail to read the PROFILE file. ERROR-VAL is the error | |
1942 | that made this call necessary." | |
c26cf6c8 | 1943 | (if (or (getenv "MH") |
c3d9274a BW |
1944 | (file-exists-p profile) |
1945 | mh-no-install) | |
b3470e4c | 1946 | (signal (car error-val) |
c3d9274a BW |
1947 | (list (format "Cannot read MH profile \"%s\"" profile) |
1948 | (car (cdr (cdr error-val)))))) | |
c26cf6c8 RS |
1949 | ;; The "install-mh" command will output a short note which |
1950 | ;; mh-exec-cmd will display to the user. | |
b6d4ab05 KH |
1951 | ;; The MH 5 version of install-mh might try prompt the user |
1952 | ;; for information, which would fail here. | |
ae3864d7 | 1953 | (mh-exec-cmd (expand-file-name "install-mh" mh-lib-progs) "-auto") |
c26cf6c8 RS |
1954 | ;; now try again to read the profile file |
1955 | (erase-buffer) | |
1956 | (condition-case err | |
1957 | (insert-file-contents profile) | |
1958 | (file-error | |
c3d9274a BW |
1959 | (signal (car err) ;re-signal with more specific msg |
1960 | (list (format "Cannot read MH profile \"%s\"" profile) | |
1961 | (car (cdr (cdr err)))))))) | |
c26cf6c8 | 1962 | |
c26cf6c8 | 1963 | (defun mh-set-folder-modified-p (flag) |
bdcfe844 | 1964 | "Mark current folder as modified or unmodified according to FLAG." |
c26cf6c8 RS |
1965 | (set-buffer-modified-p flag)) |
1966 | ||
bdcfe844 BW |
1967 | (defun mh-find-seq (name) |
1968 | "Return sequence NAME." | |
1969 | (assoc name mh-seq-list)) | |
c26cf6c8 | 1970 | |
c26cf6c8 | 1971 | (defun mh-seq-to-msgs (seq) |
bdcfe844 | 1972 | "Return a list of the messages in SEQ." |
c26cf6c8 RS |
1973 | (mh-seq-msgs (mh-find-seq seq))) |
1974 | ||
bdcfe844 BW |
1975 | (defun mh-update-scan-format (fmt width) |
1976 | "Return a scan format with the (msg) width in the FMT replaced with WIDTH. | |
1977 | ||
1978 | The message number width portion of the format is discovered using | |
1979 | `mh-scan-msg-format-regexp'. Its replacement is controlled with | |
1980 | `mh-scan-msg-format-string'." | |
1981 | (or (and | |
1982 | (string-match mh-scan-msg-format-regexp fmt) | |
1983 | (let ((begin (match-beginning 1)) | |
1984 | (end (match-end 1))) | |
1985 | (concat (substring fmt 0 begin) | |
1986 | (format mh-scan-msg-format-string width) | |
1987 | (substring fmt end)))) | |
1988 | fmt)) | |
a1506d29 | 1989 | |
bdcfe844 BW |
1990 | (defun mh-message-number-width (folder) |
1991 | "Return the widest message number in this FOLDER." | |
1992 | (or mh-progs (mh-find-path)) | |
1993 | (let ((tmp-buffer (get-buffer-create mh-temp-buffer)) | |
c3d9274a | 1994 | (width 0)) |
bdcfe844 BW |
1995 | (save-excursion |
1996 | (set-buffer tmp-buffer) | |
1997 | (erase-buffer) | |
1998 | (apply 'call-process | |
924df208 | 1999 | (expand-file-name mh-scan-prog mh-progs) nil '(t nil) nil |
c3d9274a | 2000 | (list folder "last" "-format" "%(msg)")) |
bdcfe844 BW |
2001 | (goto-char (point-min)) |
2002 | (if (re-search-forward mh-scan-msg-number-regexp nil 0 1) | |
c3d9274a BW |
2003 | (setq width (length (buffer-substring |
2004 | (match-beginning 1) (match-end 1)))))) | |
bdcfe844 | 2005 | width)) |
c26cf6c8 | 2006 | |
3d7ca223 | 2007 | (defun mh-add-msgs-to-seq (msgs seq &optional internal-flag dont-annotate-flag) |
bdcfe844 BW |
2008 | "Add MSGS to SEQ. |
2009 | Remove duplicates and keep sequence sorted. If optional INTERNAL-FLAG is | |
2010 | non-nil, do not mark the message in the scan listing or inform MH of the | |
3d7ca223 BW |
2011 | addition. |
2012 | ||
2013 | If DONT-ANNOTATE-FLAG is non-nil then the annotations in the folder buffer are | |
2014 | not updated." | |
a66894d8 BW |
2015 | (let ((entry (mh-find-seq seq)) |
2016 | (internal-seq-flag (mh-internal-seq seq))) | |
c26cf6c8 RS |
2017 | (if (and msgs (atom msgs)) (setq msgs (list msgs))) |
2018 | (if (null entry) | |
c3d9274a | 2019 | (setq mh-seq-list |
bdcfe844 BW |
2020 | (cons (mh-make-seq seq (mh-canonicalize-sequence msgs)) |
2021 | mh-seq-list)) | |
2022 | (if msgs (setcdr entry (mh-canonicalize-sequence | |
f0d73c14 BW |
2023 | (append msgs (mh-seq-msgs entry)))))) |
2024 | (unless internal-flag | |
2025 | (mh-add-to-sequence seq msgs) | |
2026 | (when (not dont-annotate-flag) | |
2027 | (mh-iterate-on-range msg msgs | |
2028 | (unless (memq msg (cdr entry)) | |
2029 | (mh-add-sequence-notation msg internal-seq-flag))))))) | |
c26cf6c8 | 2030 | |
bdcfe844 BW |
2031 | (defun mh-canonicalize-sequence (msgs) |
2032 | "Sort MSGS in decreasing order and remove duplicates." | |
2033 | (let* ((sorted-msgs (sort (copy-sequence msgs) '>)) | |
2034 | (head sorted-msgs)) | |
2035 | (while (cdr head) | |
2036 | (if (= (car head) (cadr head)) | |
2037 | (setcdr head (cddr head)) | |
2038 | (setq head (cdr head)))) | |
2039 | sorted-msgs)) | |
c26cf6c8 | 2040 | |
3d7ca223 | 2041 | (defvar mh-sub-folders-cache (make-hash-table :test #'equal)) |
924df208 | 2042 | (defvar mh-current-folder-name nil) |
a66894d8 BW |
2043 | (defvar mh-flists-partial-line "") |
2044 | (defvar mh-flists-process nil) | |
2045 | ||
2046 | ;; Initialize mh-sub-folders-cache... | |
2047 | (defun mh-collect-folder-names () | |
2048 | "Collect folder names by running `flists'." | |
2049 | (unless mh-flists-process | |
2050 | (setq mh-flists-process | |
2051 | (mh-exec-cmd-daemon "folders" 'mh-collect-folder-names-filter | |
2052 | "-recurse" "-fast")))) | |
2053 | ||
2054 | (defun mh-collect-folder-names-filter (process output) | |
2055 | "Read folder names. | |
2056 | PROCESS is the flists process that was run to collect folder names and the | |
2057 | function is called when OUTPUT is available." | |
2058 | (let ((position 0) | |
2059 | (prevailing-match-data (match-data)) | |
2060 | line-end folder) | |
2061 | (unwind-protect | |
2062 | (while (setq line-end (string-match "\n" output position)) | |
2063 | (setq folder (format "+%s%s" | |
2064 | mh-flists-partial-line | |
2065 | (substring output position line-end))) | |
2066 | (setq mh-flists-partial-line "") | |
2067 | (unless (equal (aref folder 1) ?.) | |
2068 | (mh-populate-sub-folders-cache folder)) | |
2069 | (setq position (1+ line-end))) | |
2070 | (set-match-data prevailing-match-data)) | |
2071 | (setq mh-flists-partial-line (substring output position)))) | |
2072 | ||
2073 | (defun mh-populate-sub-folders-cache (folder) | |
2074 | "Tell `mh-sub-folders-cache' about FOLDER." | |
2075 | (let* ((last-slash (mh-search-from-end ?/ folder)) | |
2076 | (child1 (substring folder (1+ (or last-slash 0)))) | |
2077 | (parent (and last-slash (substring folder 0 last-slash))) | |
2078 | (parent-slash (and parent (mh-search-from-end ?/ parent))) | |
2079 | (child2 (and parent (substring parent (1+ (or parent-slash 0))))) | |
2080 | (grand-parent (and parent-slash (substring parent 0 parent-slash))) | |
2081 | (cache-entry (gethash parent mh-sub-folders-cache))) | |
2082 | (unless (loop for x in cache-entry when (equal (car x) child1) return t | |
2083 | finally return nil) | |
2084 | (push (list child1) cache-entry) | |
2085 | (setf (gethash parent mh-sub-folders-cache) | |
2086 | (sort cache-entry (lambda (x y) (string< (car x) (car y))))) | |
2087 | (when parent | |
2088 | (loop for x in (gethash grand-parent mh-sub-folders-cache) | |
2089 | when (equal (car x) child2) | |
2090 | do (progn (setf (cdr x) t) (return))))))) | |
3d7ca223 BW |
2091 | |
2092 | (defun mh-normalize-folder-name (folder &optional empty-string-okay | |
2093 | dont-remove-trailing-slash) | |
2094 | "Normalizes FOLDER name. | |
2095 | Makes sure that two '/' characters never occur next to each other. Also all | |
2096 | occurrences of \"..\" and \".\" are suitably processed. So \"+inbox/../news\" | |
2097 | will be normalized to \"+news\". | |
2098 | ||
2099 | If optional argument EMPTY-STRING-OKAY is nil then a '+' is added at the | |
2100 | front if FOLDER lacks one. If non-nil and FOLDER is the empty string then | |
2101 | nothing is added. | |
2102 | ||
2103 | If optional argument DONT-REMOVE-TRAILING-SLASH is non-nil then a trailing '/' | |
2104 | if present is retained (if present), otherwise it is removed." | |
2105 | (when (stringp folder) | |
2106 | ;; Replace two or more consecutive '/' characters with a single '/' | |
2107 | (while (string-match "//" folder) | |
2108 | (setq folder (replace-match "/" nil t folder))) | |
2109 | (let* ((length (length folder)) | |
2110 | (trailing-slash-present (and (> length 0) | |
924df208 BW |
2111 | (equal (aref folder (1- length)) ?/))) |
2112 | (leading-slash-present (and (> length 0) | |
2113 | (equal (aref folder 0) ?/)))) | |
2114 | (when (and (> length 0) (equal (aref folder 0) ?@) | |
2115 | (stringp mh-current-folder-name)) | |
2116 | (setq folder (format "%s/%s/" mh-current-folder-name | |
2117 | (substring folder 1)))) | |
2118 | ;; XXX: Purge empty strings from the list that split-string returns. In | |
2119 | ;; XEmacs, (split-string "+foo/" "/") returns ("+foo" "") while in GNU | |
2120 | ;; Emacs it returns ("+foo"). In the code it is assumed that the | |
2121 | ;; components list has no empty strings. | |
2122 | (let ((components (delete "" (split-string folder "/"))) | |
3d7ca223 BW |
2123 | (result ())) |
2124 | ;; Remove .. and . from the pathname. | |
2125 | (dolist (component components) | |
2126 | (cond ((and (equal component "..") result) | |
2127 | (pop result)) | |
2128 | ((equal component "..")) | |
2129 | ((equal component ".")) | |
2130 | (t (push component result)))) | |
2131 | (setq folder "") | |
2132 | (dolist (component result) | |
2133 | (setq folder (concat component "/" folder))) | |
2134 | ;; Remove trailing '/' if needed. | |
2135 | (unless (and trailing-slash-present dont-remove-trailing-slash) | |
2136 | (when (not (equal folder "")) | |
924df208 BW |
2137 | (setq folder (substring folder 0 (1- (length folder)))))) |
2138 | (when leading-slash-present | |
2139 | (setq folder (concat "/" folder))))) | |
3d7ca223 BW |
2140 | (cond ((and empty-string-okay (equal folder ""))) |
2141 | ((equal folder "") (setq folder "+")) | |
2142 | ((not (equal (aref folder 0) ?+)) (setq folder (concat "+" folder))))) | |
2143 | folder) | |
2144 | ||
2145 | (defun mh-sub-folders (folder &optional add-trailing-slash-flag) | |
2146 | "Find the subfolders of FOLDER. | |
2147 | The function avoids running folders unnecessarily by caching the results of | |
2148 | the actual folders call. | |
2149 | ||
2150 | If optional argument ADD-TRAILING-SLASH-FLAG is non-nil then a slash is added | |
2151 | to each of the sub-folder names that may have nested folders within them." | |
2152 | (let* ((folder (mh-normalize-folder-name folder)) | |
2153 | (match (gethash folder mh-sub-folders-cache 'no-result)) | |
2154 | (sub-folders (cond ((eq match 'no-result) | |
2155 | (setf (gethash folder mh-sub-folders-cache) | |
2156 | (mh-sub-folders-actual folder))) | |
2157 | (t match)))) | |
2158 | (if add-trailing-slash-flag | |
2159 | (mapcar #'(lambda (x) | |
2160 | (if (cdr x) (cons (concat (car x) "/") (cdr x)) x)) | |
2161 | sub-folders) | |
2162 | sub-folders))) | |
2163 | ||
2164 | (defun mh-sub-folders-actual (folder) | |
2165 | "Execute the command folders to return the sub-folders of FOLDER. | |
2166 | Filters out the folder names that start with \".\" so that directories that | |
2167 | aren't usually mail folders are hidden." | |
2168 | (let ((arg-list `(,(expand-file-name "folders" mh-progs) | |
2169 | nil (t nil) nil "-noheader" "-norecurse" "-nototal" | |
2170 | ,@(if (stringp folder) (list folder) ()))) | |
2171 | (results ()) | |
2172 | (current-folder (concat | |
2173 | (with-temp-buffer | |
2174 | (call-process (expand-file-name "folder" mh-progs) | |
2175 | nil '(t nil) nil "-fast") | |
2176 | (buffer-substring (point-min) (1- (point-max)))) | |
2177 | "+"))) | |
2178 | (with-temp-buffer | |
2179 | (apply #'call-process arg-list) | |
2180 | (goto-char (point-min)) | |
2181 | (while (not (and (eolp) (bolp))) | |
2182 | (goto-char (line-end-position)) | |
f0d73c14 BW |
2183 | (let ((start-pos (line-beginning-position)) |
2184 | (has-pos (search-backward " has " (line-beginning-position) t))) | |
3d7ca223 BW |
2185 | (when (integerp has-pos) |
2186 | (while (equal (char-after has-pos) ? ) | |
2187 | (decf has-pos)) | |
2188 | (incf has-pos) | |
f0d73c14 BW |
2189 | (while (equal (char-after start-pos) ? ) |
2190 | (incf start-pos)) | |
2191 | (let* ((name (buffer-substring start-pos has-pos)) | |
3d7ca223 BW |
2192 | (first-char (aref name 0)) |
2193 | (last-char (aref name (1- (length name))))) | |
2194 | (unless (member first-char '(?. ?# ?,)) | |
2195 | (when (and (equal last-char ?+) (equal name current-folder)) | |
2196 | (setq name (substring name 0 (1- (length name))))) | |
2197 | (push | |
2198 | (cons name | |
2199 | (search-forward "(others)" (line-end-position) t)) | |
2200 | results)))) | |
2201 | (forward-line 1)))) | |
2202 | (setq results (nreverse results)) | |
2203 | (when (stringp folder) | |
2204 | (setq results (cdr results)) | |
2205 | (let ((folder-name-len (length (format "%s/" (substring folder 1))))) | |
2206 | (setq results (mapcar (lambda (f) | |
2207 | (cons (substring (car f) folder-name-len) | |
2208 | (cdr f))) | |
2209 | results)))) | |
2210 | results)) | |
2211 | ||
2212 | (defun mh-remove-from-sub-folders-cache (folder) | |
2213 | "Remove FOLDER and its parent from `mh-sub-folders-cache'. | |
2214 | FOLDER should be unconditionally removed from the cache. Also the last ancestor | |
2215 | of FOLDER present in the cache must be removed as well. | |
2216 | ||
2217 | To see why this is needed assume we have a folder +foo which has a single | |
2218 | sub-folder qux. Now we create the folder +foo/bar/baz. Here we will need to | |
2219 | invalidate the cached sub-folders of +foo, otherwise completion on +foo won't | |
2220 | tell us about the option +foo/bar!" | |
2221 | (remhash folder mh-sub-folders-cache) | |
2222 | (block ancestor-found | |
2223 | (let ((parent folder) | |
2224 | (one-ancestor-found nil) | |
2225 | last-slash) | |
2226 | (while (setq last-slash (mh-search-from-end ?/ parent)) | |
2227 | (setq parent (substring parent 0 last-slash)) | |
2228 | (unless (eq (gethash parent mh-sub-folders-cache 'none) 'none) | |
2229 | (remhash parent mh-sub-folders-cache) | |
2230 | (if one-ancestor-found | |
2231 | (return-from ancestor-found) | |
2232 | (setq one-ancestor-found t)))) | |
2233 | (remhash nil mh-sub-folders-cache)))) | |
2234 | ||
bdcfe844 BW |
2235 | (defvar mh-folder-hist nil) |
2236 | (defvar mh-speed-folder-map) | |
924df208 BW |
2237 | (defvar mh-speed-flists-cache) |
2238 | ||
2239 | (defvar mh-allow-root-folder-flag nil | |
2240 | "Non-nil means \"+\" is an acceptable folder name. | |
2241 | This variable is used to communicate with `mh-folder-completion-function'. That | |
2242 | function can have exactly three arguments so we bind this variable to t or nil. | |
2243 | ||
2244 | This variable should never be set.") | |
2245 | ||
3d7ca223 BW |
2246 | (defvar mh-folder-completion-map (copy-keymap minibuffer-local-completion-map)) |
2247 | (define-key mh-folder-completion-map " " 'minibuffer-complete) | |
2248 | ||
a66894d8 BW |
2249 | (defvar mh-speed-flists-inhibit-flag nil) |
2250 | ||
924df208 BW |
2251 | (defun mh-speed-flists-active-p () |
2252 | "Check if speedbar is running with message counts enabled." | |
2253 | (and (featurep 'mh-speed) | |
a66894d8 | 2254 | (not mh-speed-flists-inhibit-flag) |
924df208 BW |
2255 | (> (hash-table-count mh-speed-flists-cache) 0))) |
2256 | ||
3d7ca223 BW |
2257 | (defun mh-folder-completion-function (name predicate flag) |
2258 | "Programmable completion for folder names. | |
2259 | NAME is the partial folder name that has been input. PREDICATE if non-nil is a | |
2260 | function that is used to filter the possible choices and FLAG determines | |
2261 | whether the completion is over." | |
2262 | (let* ((orig-name name) | |
2263 | (name (mh-normalize-folder-name name nil t)) | |
2264 | (last-slash (mh-search-from-end ?/ name)) | |
2265 | (last-complete (if last-slash (substring name 0 last-slash) nil)) | |
2266 | (remainder (cond (last-complete (substring name (1+ last-slash))) | |
2267 | ((and (> (length name) 0) (equal (aref name 0) ?+)) | |
2268 | (substring name 1)) | |
2269 | (t "")))) | |
2270 | (cond ((eq flag nil) | |
2271 | (let ((try-res (try-completion | |
2272 | name | |
2273 | (mapcar (lambda (x) | |
2274 | (cons (if (not last-complete) | |
2275 | (concat "+" (car x)) | |
2276 | (concat last-complete "/" (car x))) | |
2277 | (cdr x))) | |
2278 | (mh-sub-folders last-complete t)) | |
2279 | predicate))) | |
2280 | (cond ((eq try-res nil) nil) | |
2281 | ((and (eq try-res t) (equal name orig-name)) t) | |
2282 | ((eq try-res t) name) | |
2283 | (t try-res)))) | |
2284 | ((eq flag t) | |
2285 | (all-completions | |
2286 | remainder (mh-sub-folders last-complete t) predicate)) | |
2287 | ((eq flag 'lambda) | |
924df208 BW |
2288 | (let ((path (concat mh-user-path |
2289 | (substring (mh-normalize-folder-name name) 1)))) | |
2290 | (cond (mh-allow-root-folder-flag (file-exists-p path)) | |
2291 | ((equal path mh-user-path) nil) | |
2292 | (t (file-exists-p path)))))))) | |
2293 | ||
2294 | (defun mh-folder-completing-read (prompt default allow-root-folder-flag) | |
2295 | "Read folder name with PROMPT and default result DEFAULT. | |
2296 | If ALLOW-ROOT-FOLDER-FLAG is non-nil then \"+\" is allowed to be a folder name | |
2297 | corresponding to `mh-user-path'." | |
3d7ca223 | 2298 | (mh-normalize-folder-name |
f0d73c14 BW |
2299 | (let ((minibuffer-completing-file-name t) |
2300 | (completion-root-regexp "^[+/]") | |
2301 | (minibuffer-local-completion-map mh-folder-completion-map) | |
924df208 | 2302 | (mh-allow-root-folder-flag allow-root-folder-flag)) |
3d7ca223 BW |
2303 | (completing-read prompt 'mh-folder-completion-function nil nil nil |
2304 | 'mh-folder-hist default)) | |
2305 | t)) | |
bdcfe844 BW |
2306 | |
2307 | (defun mh-prompt-for-folder (prompt default can-create | |
3d7ca223 | 2308 | &optional default-string allow-root-folder-flag) |
bdcfe844 BW |
2309 | "Prompt for a folder name with PROMPT. |
2310 | Returns the folder's name as a string. DEFAULT is used if the folder exists | |
2311 | and the user types return. If the CAN-CREATE flag is t, then a folder is | |
2312 | created if it doesn't already exist. If optional argument DEFAULT-STRING is | |
3d7ca223 BW |
2313 | non-nil, use it in the prompt instead of DEFAULT. If ALLOW-ROOT-FOLDER-FLAG is |
2314 | non-nil then the function will accept the folder +, which means all folders | |
2315 | when used in searching." | |
c26cf6c8 RS |
2316 | (if (null default) |
2317 | (setq default "")) | |
f0d73c14 BW |
2318 | (let* ((default-string (cond (default-string (format "[%s] " default-string)) |
2319 | ((equal "" default) "") | |
2320 | (t (format "[%s] " default)))) | |
2321 | (prompt (format "%s folder: %s" prompt default-string)) | |
924df208 | 2322 | (mh-current-folder-name mh-current-folder) |
c3d9274a | 2323 | read-name folder-name) |
924df208 BW |
2324 | (while (and (setq read-name (mh-folder-completing-read |
2325 | prompt default allow-root-folder-flag)) | |
c3d9274a BW |
2326 | (equal read-name "") |
2327 | (equal default ""))) | |
3d7ca223 BW |
2328 | (cond ((or (equal read-name "") |
2329 | (and (equal read-name "+") (not allow-root-folder-flag))) | |
c3d9274a BW |
2330 | (setq read-name default)) |
2331 | ((not (mh-folder-name-p read-name)) | |
2332 | (setq read-name (format "+%s" read-name)))) | |
a1b4049d BW |
2333 | (if (or (not read-name) (equal "" read-name)) |
2334 | (error "No folder specified")) | |
c26cf6c8 RS |
2335 | (setq folder-name read-name) |
2336 | (cond ((and (> (length folder-name) 0) | |
c3d9274a BW |
2337 | (eq (aref folder-name (1- (length folder-name))) ?/)) |
2338 | (setq folder-name (substring folder-name 0 -1)))) | |
924df208 BW |
2339 | (let* ((last-slash (mh-search-from-end ?/ folder-name)) |
2340 | (parent (and last-slash (substring folder-name 0 last-slash))) | |
2341 | (child (if last-slash | |
2342 | (substring folder-name (1+ last-slash)) | |
2343 | (substring folder-name 1)))) | |
2344 | (unless (member child | |
2345 | (mapcar #'car (gethash parent mh-sub-folders-cache))) | |
2346 | (mh-remove-from-sub-folders-cache folder-name))) | |
bdcfe844 | 2347 | (let ((new-file-flag |
c3d9274a | 2348 | (not (file-exists-p (mh-expand-file-name folder-name))))) |
bdcfe844 | 2349 | (cond ((and new-file-flag |
c3d9274a BW |
2350 | (y-or-n-p |
2351 | (format "Folder %s does not exist. Create it? " | |
2352 | folder-name))) | |
2353 | (message "Creating %s" folder-name) | |
bdcfe844 | 2354 | (mh-exec-cmd-error nil "folder" folder-name) |
3d7ca223 | 2355 | (mh-remove-from-sub-folders-cache folder-name) |
bdcfe844 BW |
2356 | (when (boundp 'mh-speed-folder-map) |
2357 | (mh-speed-add-folder folder-name)) | |
3d7ca223 | 2358 | (message "Creating %s...done" folder-name)) |
c3d9274a BW |
2359 | (new-file-flag |
2360 | (error "Folder %s is not created" folder-name)) | |
2361 | ((not (file-directory-p (mh-expand-file-name folder-name))) | |
2362 | (error "\"%s\" is not a directory" | |
3d7ca223 | 2363 | (mh-expand-file-name folder-name))))) |
c26cf6c8 RS |
2364 | folder-name)) |
2365 | ||
924df208 BW |
2366 | (defun mh-truncate-log-buffer () |
2367 | "If `mh-log-buffer' is too big then truncate it. | |
2368 | If the number of lines in `mh-log-buffer' exceeds `mh-log-buffer-lines' then | |
2369 | keep only the last `mh-log-buffer-lines'. As a side effect the point is set to | |
2370 | the end of the log buffer. | |
2371 | ||
2372 | The function returns the size of the final size of the log buffer." | |
2373 | (with-current-buffer (get-buffer-create mh-log-buffer) | |
2374 | (goto-char (point-max)) | |
2375 | (save-excursion | |
2376 | (when (equal (forward-line (- mh-log-buffer-lines)) 0) | |
2377 | (delete-region (point-min) (point)))) | |
2378 | (unless (or (bobp) | |
2379 | (save-excursion | |
2380 | (and (equal (forward-line -1) 0) (equal (char-after) ?\f)))) | |
2381 | (insert "\n\f\n")) | |
2382 | (buffer-size))) | |
2383 | ||
c26cf6c8 RS |
2384 | ;;; Issue commands to MH. |
2385 | ||
c26cf6c8 | 2386 | (defun mh-exec-cmd (command &rest args) |
bdcfe844 BW |
2387 | "Execute mh-command COMMAND with ARGS. |
2388 | The side effects are what is desired. | |
2389 | Any output is assumed to be an error and is shown to the user. | |
2390 | The output is not read or parsed by MH-E." | |
c26cf6c8 | 2391 | (save-excursion |
3d7ca223 | 2392 | (set-buffer (get-buffer-create mh-log-buffer)) |
a66894d8 BW |
2393 | (let* ((initial-size (mh-truncate-log-buffer)) |
2394 | (start (point)) | |
2395 | (args (mh-list-to-string args))) | |
2396 | (apply 'call-process (expand-file-name command mh-progs) nil t nil args) | |
2397 | (when (> (buffer-size) initial-size) | |
2398 | (save-excursion | |
2399 | (goto-char start) | |
2400 | (insert "Errors when executing: " command) | |
2401 | (loop for arg in args do (insert " " arg)) | |
2402 | (insert "\n")) | |
2403 | (save-window-excursion | |
2404 | (switch-to-buffer-other-window mh-log-buffer) | |
2405 | (sit-for 5)))))) | |
c26cf6c8 | 2406 | |
c26cf6c8 | 2407 | (defun mh-exec-cmd-error (env command &rest args) |
bdcfe844 BW |
2408 | "In environment ENV, execute mh-command COMMAND with ARGS. |
2409 | ENV is nil or a string of space-separated \"var=value\" elements. | |
2410 | Signals an error if process does not complete successfully." | |
c26cf6c8 | 2411 | (save-excursion |
b6d4ab05 | 2412 | (set-buffer (get-buffer-create mh-temp-buffer)) |
c26cf6c8 | 2413 | (erase-buffer) |
924df208 BW |
2414 | (let ((process-environment process-environment)) |
2415 | ;; XXX: We should purge the list that split-string returns of empty | |
2416 | ;; strings. This can happen in XEmacs if leading or trailing spaces | |
2417 | ;; are present. | |
2418 | (dolist (elem (if (stringp env) (split-string env " ") ())) | |
2419 | (push elem process-environment)) | |
2420 | (mh-handle-process-error | |
2421 | command (apply #'call-process (expand-file-name command mh-progs) | |
2422 | nil t nil (mh-list-to-string args)))))) | |
c26cf6c8 | 2423 | |
3d7ca223 BW |
2424 | (defun mh-exec-cmd-daemon (command filter &rest args) |
2425 | "Execute MH command COMMAND in the background. | |
2426 | ||
2427 | If FILTER is non-nil then it is used to process the output otherwise the | |
2428 | default filter `mh-process-daemon' is used. See `set-process-filter' for more | |
2429 | details of FILTER. | |
2430 | ||
2431 | ARGS are passed to COMMAND as command line arguments." | |
c26cf6c8 | 2432 | (save-excursion |
3d7ca223 | 2433 | (set-buffer (get-buffer-create mh-log-buffer)) |
924df208 | 2434 | (mh-truncate-log-buffer)) |
c26cf6c8 | 2435 | (let* ((process-connection-type nil) |
c3d9274a BW |
2436 | (process (apply 'start-process |
2437 | command nil | |
2438 | (expand-file-name command mh-progs) | |
2439 | (mh-list-to-string args)))) | |
a66894d8 BW |
2440 | (set-process-filter process (or filter 'mh-process-daemon)) |
2441 | process)) | |
c26cf6c8 | 2442 | |
924df208 BW |
2443 | (defun mh-exec-cmd-env-daemon (env command filter &rest args) |
2444 | "In ennvironment ENV, execute mh-command COMMAND in the background. | |
2445 | ||
2446 | ENV is nil or a string of space-separated \"var=value\" elements. | |
2447 | Signals an error if process does not complete successfully. | |
2448 | ||
2449 | If FILTER is non-nil then it is used to process the output otherwise the | |
2450 | default filter `mh-process-daemon' is used. See `set-process-filter' for more | |
2451 | details of FILTER. | |
2452 | ||
2453 | ARGS are passed to COMMAND as command line arguments." | |
2454 | (let ((process-environment process-environment)) | |
2455 | (dolist (elem (if (stringp env) (split-string env " ") ())) | |
2456 | (push elem process-environment)) | |
2457 | (apply #'mh-exec-cmd-daemon command filter args))) | |
2458 | ||
c26cf6c8 | 2459 | (defun mh-process-daemon (process output) |
3d7ca223 BW |
2460 | "PROCESS daemon that puts OUTPUT into a temporary buffer. |
2461 | Any output from the process is displayed in an asynchronous pop-up window." | |
2462 | (set-buffer (get-buffer-create mh-log-buffer)) | |
c26cf6c8 | 2463 | (insert-before-markers output) |
3d7ca223 | 2464 | (display-buffer mh-log-buffer)) |
c26cf6c8 | 2465 | |
c26cf6c8 | 2466 | (defun mh-exec-cmd-quiet (raise-error command &rest args) |
bdcfe844 BW |
2467 | "Signal RAISE-ERROR if COMMAND with ARGS fails. |
2468 | Execute MH command COMMAND with ARGS. ARGS is a list of strings. | |
2469 | Return at start of mh-temp buffer, where output can be parsed and used. | |
2470 | Returns value of `call-process', which is 0 for success, unless RAISE-ERROR is | |
2471 | non-nil, in which case an error is signaled if `call-process' returns non-0." | |
b6d4ab05 | 2472 | (set-buffer (get-buffer-create mh-temp-buffer)) |
c26cf6c8 RS |
2473 | (erase-buffer) |
2474 | (let ((value | |
c3d9274a BW |
2475 | (apply 'call-process |
2476 | (expand-file-name command mh-progs) nil t nil | |
2477 | args))) | |
c26cf6c8 RS |
2478 | (goto-char (point-min)) |
2479 | (if raise-error | |
c3d9274a | 2480 | (mh-handle-process-error command value) |
c26cf6c8 RS |
2481 | value))) |
2482 | ||
c3d9274a BW |
2483 | (defun mh-profile-component (component) |
2484 | "Return COMPONENT value from mhparam, or nil if unset." | |
2485 | (save-excursion | |
2486 | (mh-exec-cmd-quiet nil "mhparam" "-components" component) | |
2487 | (mh-get-profile-field (concat component ":")))) | |
2488 | ||
bdcfe844 BW |
2489 | (defun mh-exchange-point-and-mark-preserving-active-mark () |
2490 | "Put the mark where point is now, and point where the mark is now. | |
2491 | This command works even when the mark is not active, and preserves whether the | |
2492 | mark is active or not." | |
2493 | (interactive nil) | |
2494 | (let ((is-active (and (boundp 'mark-active) mark-active))) | |
2495 | (let ((omark (mark t))) | |
2496 | (if (null omark) | |
2497 | (error "No mark set in this buffer")) | |
2498 | (set-mark (point)) | |
2499 | (goto-char omark) | |
2500 | (if (boundp 'mark-active) | |
2501 | (setq mark-active is-active)) | |
2502 | nil))) | |
c26cf6c8 RS |
2503 | |
2504 | (defun mh-exec-cmd-output (command display &rest args) | |
bdcfe844 BW |
2505 | "Execute MH command COMMAND with DISPLAY flag and ARGS. |
2506 | Put the output into buffer after point. Set mark after inserted text. | |
2507 | Output is expected to be shown to user, not parsed by MH-E." | |
c26cf6c8 RS |
2508 | (push-mark (point) t) |
2509 | (apply 'call-process | |
c3d9274a BW |
2510 | (expand-file-name command mh-progs) nil t display |
2511 | (mh-list-to-string args)) | |
c26cf6c8 | 2512 | |
bdcfe844 BW |
2513 | ;; The following is used instead of 'exchange-point-and-mark because the |
2514 | ;; latter activates the current region (between point and mark), which | |
2515 | ;; turns on highlighting. So prior to this bug fix, doing "inc" would | |
2516 | ;; highlight a region containing the new messages, which is undesirable. | |
2517 | ;; The bug wasn't seen in emacs21 but still occurred in XEmacs21.4. | |
2518 | (mh-exchange-point-and-mark-preserving-active-mark)) | |
c26cf6c8 RS |
2519 | |
2520 | (defun mh-exec-lib-cmd-output (command &rest args) | |
bdcfe844 BW |
2521 | "Execute MH library command COMMAND with ARGS. |
2522 | Put the output into buffer after point. Set mark after inserted text." | |
ae3864d7 | 2523 | (apply 'mh-exec-cmd-output (expand-file-name command mh-lib-progs) nil args)) |
c26cf6c8 | 2524 | |
c26cf6c8 | 2525 | (defun mh-handle-process-error (command status) |
924df208 BW |
2526 | "Raise error if COMMAND returned non-zero STATUS, otherwise return STATUS." |
2527 | (if (equal status 0) | |
2528 | status | |
2529 | (goto-char (point-min)) | |
2530 | (insert (if (integerp status) | |
2531 | (format "%s: exit code %d\n" command status) | |
2532 | (format "%s: %s\n" command status))) | |
2533 | (save-excursion | |
2534 | (let ((error-message (buffer-substring (point-min) (point-max)))) | |
2535 | (set-buffer (get-buffer-create mh-log-buffer)) | |
2536 | (mh-truncate-log-buffer) | |
2537 | (insert error-message))) | |
2538 | (error "%s failed, check %s buffer for error message" | |
2539 | command mh-log-buffer))) | |
c26cf6c8 | 2540 | |
c26cf6c8 | 2541 | (defun mh-list-to-string (l) |
bdcfe844 | 2542 | "Flatten the list L and make every element of the new list into a string." |
c26cf6c8 RS |
2543 | (nreverse (mh-list-to-string-1 l))) |
2544 | ||
2545 | (defun mh-list-to-string-1 (l) | |
bdcfe844 | 2546 | "Flatten the list L and make every element of the new list into a string." |
c26cf6c8 RS |
2547 | (let ((new-list nil)) |
2548 | (while l | |
2549 | (cond ((null (car l))) | |
c3d9274a BW |
2550 | ((symbolp (car l)) |
2551 | (setq new-list (cons (symbol-name (car l)) new-list))) | |
2552 | ((numberp (car l)) | |
2553 | (setq new-list (cons (int-to-string (car l)) new-list))) | |
2554 | ((equal (car l) "")) | |
2555 | ((stringp (car l)) (setq new-list (cons (car l) new-list))) | |
2556 | ((listp (car l)) | |
2557 | (setq new-list (nconc (mh-list-to-string-1 (car l)) | |
2558 | new-list))) | |
2559 | (t (error "Bad element in mh-list-to-string: %s" (car l)))) | |
c26cf6c8 RS |
2560 | (setq l (cdr l))) |
2561 | new-list)) | |
2562 | ||
f0d73c14 BW |
2563 | (defun mh-replace-string (old new) |
2564 | "Replace all occurrences of OLD with NEW in the current buffer." | |
2565 | (goto-char (point-min)) | |
2566 | (let ((case-fold-search t)) | |
2567 | (while (search-forward old nil t) | |
2568 | (replace-match new t t)))) | |
2569 | ||
a66894d8 BW |
2570 | (defun mh-replace-in-string (regexp newtext string) |
2571 | "Replace REGEXP with NEWTEXT everywhere in STRING and return result. | |
2572 | NEWTEXT is taken literally---no \\DIGIT escapes will be recognized. | |
2573 | ||
2574 | The function body was copied from `dired-replace-in-string' in dired.el. | |
2575 | Emacs21 has `replace-regexp-in-string' while XEmacs has `replace-in-string'. | |
2576 | Neither is present in Emacs20. The file gnus-util.el in Gnus 5.10.1 and above | |
2577 | has `gnus-replace-in-string'. We should use that when we decide to not support | |
2578 | older versions of Gnus." | |
2579 | (let ((result "") (start 0) mb me) | |
2580 | (while (string-match regexp string start) | |
2581 | (setq mb (match-beginning 0) | |
2582 | me (match-end 0) | |
2583 | result (concat result (substring string start mb) newtext) | |
2584 | start me)) | |
2585 | (concat result (substring string start)))) | |
2586 | ||
c26cf6c8 RS |
2587 | (provide 'mh-utils) |
2588 | ||
bdcfe844 | 2589 | ;;; Local Variables: |
c3d9274a | 2590 | ;;; indent-tabs-mode: nil |
bdcfe844 BW |
2591 | ;;; sentence-end-double-space: nil |
2592 | ;;; End: | |
2593 | ||
ab5796a9 | 2594 | ;;; arch-tag: 1af39fdf-f66f-4b06-9b48-18a7656c8e36 |
c26cf6c8 | 2595 | ;;; mh-utils.el ends here |