1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006 Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 ;; Boston, MA 02110-1301, USA.
33 (defvar w3m-minor-mode-map))
36 ;; Avoid the "Recursive load suspected" error in Emacs 21.1.
38 (let ((recursive-load-depth-limit 100))
51 (autoload 'gnus-msg-mail "gnus-msg" nil t)
52 (autoload 'gnus-button-mailto "gnus-msg")
53 (autoload 'gnus-button-reply "gnus-msg" nil t)
54 (autoload 'parse-time-string "parse-time" nil nil)
55 (autoload 'ansi-color-apply-on-region "ansi-color")
56 (autoload 'mm-url-insert-file-contents-external "mm-url")
57 (autoload 'mm-extern-cache-contents "mm-extern")
59 (defgroup gnus-article nil
61 :link '(custom-manual "(gnus)Article Buffer")
64 (defgroup gnus-article-treat nil
65 "Treating article parts."
66 :link '(custom-manual "(gnus)Article Hiding")
69 (defgroup gnus-article-hiding nil
70 "Hiding article parts."
71 :link '(custom-manual "(gnus)Article Hiding")
74 (defgroup gnus-article-highlight nil
75 "Article highlighting."
76 :link '(custom-manual "(gnus)Article Highlighting")
80 (defgroup gnus-article-signature nil
82 :link '(custom-manual "(gnus)Article Signature")
85 (defgroup gnus-article-headers nil
87 :link '(custom-manual "(gnus)Hiding Headers")
90 (defgroup gnus-article-washing nil
91 "Special commands on articles."
92 :link '(custom-manual "(gnus)Article Washing")
95 (defgroup gnus-article-emphasis nil
96 "Fontisizing articles."
97 :link '(custom-manual "(gnus)Article Fontisizing")
100 (defgroup gnus-article-saving nil
102 :link '(custom-manual "(gnus)Saving Articles")
103 :group 'gnus-article)
105 (defgroup gnus-article-mime nil
106 "Worshiping the MIME wonder."
107 :link '(custom-manual "(gnus)Using MIME")
108 :group 'gnus-article)
110 (defgroup gnus-article-buttons nil
111 "Pushable buttons in the article buffer."
112 :link '(custom-manual "(gnus)Article Buttons")
113 :group 'gnus-article)
115 (defgroup gnus-article-various nil
116 "Other article options."
117 :link '(custom-manual "(gnus)Misc Article")
118 :group 'gnus-article)
120 (defcustom gnus-ignored-headers
123 (concat "^" header ":"))
124 '("Path" "Expires" "Date-Received" "References" "Xref" "Lines"
125 "Relay-Version" "Message-ID" "Approved" "Sender" "Received"
126 "X-UIDL" "MIME-Version" "Return-Path" "In-Reply-To"
127 "Content-Type" "Content-Transfer-Encoding" "X-WebTV-Signature"
128 "X-MimeOLE" "X-MSMail-Priority" "X-Priority" "X-Loop"
129 "X-Authentication-Warning" "X-MIME-Autoconverted" "X-Face"
130 "X-Attribution" "X-Originating-IP" "Delivered-To"
131 "NNTP-[-A-Za-z]+" "Distribution" "X-no-archive" "X-Trace"
132 "X-Complaints-To" "X-NNTP-Posting-Host" "X-Orig.*"
133 "Abuse-Reports-To" "Cache-Post-Path" "X-Article-Creation-Date"
134 "X-Poster" "X-Mail2News-Path" "X-Server-Date" "X-Cache"
135 "Originator" "X-Problems-To" "X-Auth-User" "X-Post-Time"
136 "X-Admin" "X-UID" "Resent-[-A-Za-z]+" "X-Mailing-List"
137 "Precedence" "Original-[-A-Za-z]+" "X-filename" "X-Orcpt"
138 "Old-Received" "X-Pgp" "X-Auth" "X-From-Line"
139 "X-Gnus-Article-Number" "X-Majordomo" "X-Url" "X-Sender"
140 "MBOX-Line" "Priority" "X400-[-A-Za-z]+"
141 "Status" "X-Gnus-Mail-Source" "Cancel-Lock"
142 "X-FTN" "X-EXP32-SerialNo" "Encoding" "Importance"
143 "Autoforwarded" "Original-Encoded-Information-Types" "X-Ya-Pop3"
144 "X-Face-Version" "X-Vms-To" "X-ML-NAME" "X-ML-COUNT"
145 "Mailing-List" "X-finfo" "X-md5sum" "X-md5sum-Origin"
146 "X-Sun-Charset" "X-Accept-Language" "X-Envelope-Sender"
147 "List-[A-Za-z]+" "X-Listprocessor-Version"
148 "X-Received" "X-Distribute" "X-Sequence" "X-Juno-Line-Breaks"
149 "X-Notes-Item" "X-MS-TNEF-Correlator" "x-uunet-gateway"
150 "X-Received" "Content-length" "X-precedence"
151 "X-Authenticated-User" "X-Comment" "X-Report" "X-Abuse-Info"
152 "X-HTTP-Proxy" "X-Mydeja-Info" "X-Copyright" "X-No-Markup"
153 "X-Abuse-Info" "X-From_" "X-Accept-Language" "Errors-To"
154 "X-BeenThere" "X-Mailman-Version" "List-Help" "List-Post"
155 "List-Subscribe" "List-Id" "List-Unsubscribe" "List-Archive"
156 "X-Content-length" "X-Posting-Agent" "Original-Received"
157 "X-Request-PGP" "X-Fingerprint" "X-WRIEnvto" "X-WRIEnvfrom"
158 "X-Virus-Scanned" "X-Delivery-Agent" "Posted-Date" "X-Gateway"
159 "X-Local-Origin" "X-Local-Destination" "X-UserInfo1"
160 "X-Received-Date" "X-Hashcash" "Face" "X-DMCA-Notifications"
161 "X-Abuse-and-DMCA-Info" "X-Postfilter" "X-Gpg-.*" "X-Disclaimer"
162 "Envelope-To" "X-Spam-Score" "System-Type" "X-Injected-Via-Gmane"
163 "X-Gmane-NNTP-Posting-Host" "Jabber-ID" "Archived-At"
164 "Envelope-Sender" "Envelope-Recipients"))
165 "*All headers that start with this regexp will be hidden.
166 This variable can also be a list of regexps of headers to be ignored.
167 If `gnus-visible-headers' is non-nil, this variable will be ignored."
168 :type '(choice :custom-show nil
171 :group 'gnus-article-hiding)
173 (defcustom gnus-visible-headers
174 "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^[BGF]?Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Mail-Followup-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From:\\|^X-Sent:"
175 "*All headers that do not match this regexp will be hidden.
176 This variable can also be a list of regexp of headers to remain visible.
177 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
178 :type '(repeat :value-to-internal (lambda (widget value)
179 (custom-split-regexp-maybe value))
180 :match (lambda (widget value)
182 (widget-editable-list-match widget value)))
184 :group 'gnus-article-hiding)
186 (defcustom gnus-sorted-header-list
187 '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:"
188 "^Followup-To:" "^To:" "^Cc:" "^Date:" "^Organization:")
189 "*This variable is a list of regular expressions.
190 If it is non-nil, headers that match the regular expressions will
191 be placed first in the article buffer in the sequence specified by
193 :type '(repeat regexp)
194 :group 'gnus-article-hiding)
196 (defcustom gnus-boring-article-headers '(empty followup-to reply-to)
197 "Headers that are only to be displayed if they have interesting data.
198 Possible values in this list are:
200 'empty Headers with no content.
201 'newsgroups Newsgroup identical to Gnus group.
202 'to-address To identical to To-address.
203 'to-list To identical to To-list.
204 'cc-list CC identical to To-list.
205 'followup-to Followup-to identical to Newsgroups.
206 'reply-to Reply-to identical to From.
207 'date Date less than four days old.
208 'long-to To and/or Cc longer than 1024 characters.
209 'many-to Multiple To and/or Cc."
210 :type '(set (const :tag "Headers with no content." empty)
211 (const :tag "Newsgroups identical to Gnus group." newsgroups)
212 (const :tag "To identical to To-address." to-address)
213 (const :tag "To identical to To-list." to-list)
214 (const :tag "CC identical to To-list." cc-list)
215 (const :tag "Followup-to identical to Newsgroups." followup-to)
216 (const :tag "Reply-to identical to From." reply-to)
217 (const :tag "Date less than four days old." date)
218 (const :tag "To and/or Cc longer than 1024 characters." long-to)
219 (const :tag "Multiple To and/or Cc headers." many-to))
220 :group 'gnus-article-hiding)
222 (defcustom gnus-article-skip-boring nil
223 "Skip over text that is not worth reading.
224 By default, if you set this t, then Gnus will display citations and
225 signatures, but will never scroll down to show you a page consisting
226 only of boring text. Boring text is controlled by
227 `gnus-article-boring-faces'."
230 :group 'gnus-article-hiding)
232 (defcustom gnus-signature-separator '("^-- $" "^-- *$")
233 "Regexp matching signature separator.
234 This can also be a list of regexps. In that case, it will be checked
235 from head to tail looking for a separator. Searches will be done from
236 the end of the buffer."
237 :type '(choice :format "%{%t%}: %[Value Menu%]\n%v"
239 (repeat :tag "List of regexp" regexp))
240 :group 'gnus-article-signature)
242 (defcustom gnus-signature-limit nil
243 "Provide a limit to what is considered a signature.
244 If it is a number, no signature may not be longer (in characters) than
245 that number. If it is a floating point number, no signature may be
246 longer (in lines) than that number. If it is a function, the function
247 will be called without any parameters, and if it returns nil, there is
248 no signature in the buffer. If it is a string, it will be used as a
249 regexp. If it matches, the text in question is not a signature.
251 This can also be a list of the above values."
252 :type '(choice (const nil)
255 (function :value fun)
256 (regexp :value ".*"))
257 :group 'gnus-article-signature)
259 (defcustom gnus-hidden-properties '(invisible t intangible t)
260 "Property list to use for hiding text."
262 :group 'gnus-article-hiding)
264 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
265 ;; frames in a session.
266 (defcustom gnus-article-x-face-command
267 (if (featurep 'xemacs)
268 (if (or (gnus-image-type-available-p 'xface)
269 (gnus-image-type-available-p 'pbm))
270 'gnus-display-x-face-in-from
271 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | ee -")
272 (if (gnus-image-type-available-p 'pbm)
273 'gnus-display-x-face-in-from
274 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
276 "*String or function to be executed to display an X-Face header.
277 If it is a string, the command will be executed in a sub-shell
278 asynchronously. The compressed face will be piped to this command."
279 :type `(choice string
280 (function-item gnus-display-x-face-in-from)
284 :group 'gnus-article-washing)
286 (defcustom gnus-article-x-face-too-ugly nil
287 "Regexp matching posters whose face shouldn't be shown automatically."
288 :type '(choice regexp (const nil))
289 :group 'gnus-article-washing)
291 (defcustom gnus-article-banner-alist nil
292 "Banner alist for stripping.
294 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
296 :type '(repeat (cons symbol regexp))
297 :group 'gnus-article-washing)
299 (gnus-define-group-parameter
302 "Alist of regexps (to match group names) and banner."
303 :variable-group gnus-article-washing
305 '(choice :tag "Banner"
307 (const :tag "Remove signature" signature)
308 (symbol :tag "Item in `gnus-article-banner-alist'" none)
310 (const :tag "None" nil))
312 "If non-nil, specify how to remove `banners' from articles.
314 Symbol `signature' means to remove signatures delimited by
315 `gnus-signature-separator'. Any other symbol is used to look up a
316 regular expression to match the banner in `gnus-article-banner-alist'.
317 A string is used as a regular expression to match the banner
320 (defcustom gnus-article-address-banner-alist nil
321 "Alist of mail addresses and banners.
322 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
323 to match a mail address in the From: header, BANNER is one of a symbol
324 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
325 If ADDRESS matches author's mail address, it will remove things like
326 advertisements. For example:
328 \((\"@yoo-hoo\\\\.co\\\\.jp\\\\'\" . \"\\n_+\\nDo You Yoo-hoo!\\\\?\\n.*\\n.*\\n\"))
332 (regexp :tag "Address")
333 (choice :tag "Banner" :value nil
334 (const :tag "Remove signature" signature)
335 (symbol :tag "Item in `gnus-article-banner-alist'" none)
337 (const :tag "None" nil))))
339 :group 'gnus-article-washing)
341 (defmacro gnus-emphasis-custom-with-format (&rest body)
343 \\(\\s-\\|^\\|\\=\\|[-\"]\\|\\s(\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\
344 \\(\\([-,.;:!?\"]\\|\\s)\\)+\\s-\\|[?!.]\\s-\\|\\s)\\|\\s-\\)"))
347 (defun gnus-emphasis-custom-value-to-external (value)
348 (gnus-emphasis-custom-with-format
349 (if (consp (car value))
350 (list (format format (car (car value)) (cdr (car value)))
352 (if (nth 1 value) 2 3)
356 (defun gnus-emphasis-custom-value-to-internal (value)
357 (gnus-emphasis-custom-with-format
358 (let ((regexp (concat "\\`"
359 (format (regexp-quote format)
360 "\\([^()]+\\)" "\\([^()]+\\)")
363 (if (string-match regexp (setq pattern (car value)))
364 (list (cons (match-string 1 pattern) (match-string 2 pattern))
369 (defcustom gnus-emphasis-alist
371 '(("\\*" "\\*" bold nil 2)
374 ("_/" "/_" underline-italic)
375 ("_\\*" "\\*_" underline-bold)
376 ("\\*/" "/\\*" bold-italic)
377 ("_\\*/" "/\\*_" underline-bold-italic))))
379 (gnus-emphasis-custom-with-format
380 (mapcar (lambda (spec)
381 (list (format format (car spec) (cadr spec))
384 (intern (format "gnus-emphasis-%s" (nth 2 spec)))))
386 '(;; I've never seen anyone use this strikethru convention whereas I've
387 ;; several times seen it triggered by normal text. --Stef
388 ;; Miles suggests that this form is sometimes used but for italics,
389 ;; so maybe we should map it to `italic'.
390 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
391 ;; 2 3 gnus-emphasis-strikethru)
392 ("\\(\\s-\\|^\\)\\(_\\(\\(\\w\\|_[^_]\\)+\\)_\\)\\(\\s-\\|[?!.,;]\\)"
393 2 3 gnus-emphasis-underline))))
394 "*Alist that says how to fontify certain phrases.
395 Each item looks like this:
397 (\"_\\\\(\\\\w+\\\\)_\" 0 1 'underline)
399 The first element is a regular expression to be matched. The second
400 is a number that says what regular expression grouping used to find
401 the entire emphasized word. The third is a number that says what
402 regexp grouping should be displayed and highlighted. The fourth
403 is the face used for highlighting."
407 :format "%[Customizing Style%]\n%v"
409 (group :tag "Default"
410 :value ("" 0 0 default)
413 (let ((value (widget-get
414 (cadr (widget-get (widget-get widget :parent)
417 (if (not (eq (nth 2 value) 'default))
421 (gnus-emphasis-custom-value-to-external value))))
422 (widget-group-value-create widget))
424 (integer :format "Match group: %v")
425 (integer :format "Emphasize group: %v")
428 :value (("_" . "_") nil default)
430 (regexp :format "Start regexp: %v")
431 (regexp :format "End regexp: %v"))
432 (boolean :format "Show start and end patterns: %[%v%]\n"
433 :on " On " :off " Off ")
435 :get (lambda (symbol)
436 (mapcar 'gnus-emphasis-custom-value-to-internal
437 (default-value symbol)))
438 :set (lambda (symbol value)
439 (set-default symbol (mapcar 'gnus-emphasis-custom-value-to-external
441 :group 'gnus-article-emphasis)
443 (defcustom gnus-emphasize-whitespace-regexp "^[ \t]+\\|[ \t]*\n"
444 "A regexp to describe whitespace which should not be emphasized.
445 Typical values are \"^[ \\t]+\\\\|[ \\t]*\\n\" and \"[ \\t]+\\\\|[ \\t]*\\n\".
446 The former avoids underlining of leading and trailing whitespace,
447 and the latter avoids underlining any whitespace at all."
449 :group 'gnus-article-emphasis
452 (defface gnus-emphasis-bold '((t (:bold t)))
453 "Face used for displaying strong emphasized text (*word*)."
454 :group 'gnus-article-emphasis)
456 (defface gnus-emphasis-italic '((t (:italic t)))
457 "Face used for displaying italic emphasized text (/word/)."
458 :group 'gnus-article-emphasis)
460 (defface gnus-emphasis-underline '((t (:underline t)))
461 "Face used for displaying underlined emphasized text (_word_)."
462 :group 'gnus-article-emphasis)
464 (defface gnus-emphasis-underline-bold '((t (:bold t :underline t)))
465 "Face used for displaying underlined bold emphasized text (_*word*_)."
466 :group 'gnus-article-emphasis)
468 (defface gnus-emphasis-underline-italic '((t (:italic t :underline t)))
469 "Face used for displaying underlined italic emphasized text (_/word/_)."
470 :group 'gnus-article-emphasis)
472 (defface gnus-emphasis-bold-italic '((t (:bold t :italic t)))
473 "Face used for displaying bold italic emphasized text (/*word*/)."
474 :group 'gnus-article-emphasis)
476 (defface gnus-emphasis-underline-bold-italic
477 '((t (:bold t :italic t :underline t)))
478 "Face used for displaying underlined bold italic emphasized text.
479 Example: (_/*word*/_)."
480 :group 'gnus-article-emphasis)
482 (defface gnus-emphasis-strikethru (if (featurep 'xemacs)
483 '((t (:strikethru t)))
484 '((t (:strike-through t))))
485 "Face used for displaying strike-through text (-word-)."
486 :group 'gnus-article-emphasis)
488 (defface gnus-emphasis-highlight-words
489 '((t (:background "black" :foreground "yellow")))
490 "Face used for displaying highlighted words."
491 :group 'gnus-article-emphasis)
493 (defcustom gnus-article-time-format "%a, %d %b %Y %T %Z"
494 "Format for display of Date headers in article bodies.
495 See `format-time-string' for the possible values.
497 The variable can also be function, which should return a complete Date
498 header. The function is called with one argument, the time, which can
499 be fed to `format-time-string'."
500 :type '(choice string function)
501 :link '(custom-manual "(gnus)Article Date")
502 :group 'gnus-article-washing)
504 (defcustom gnus-save-all-headers t
505 "*If non-nil, don't remove any headers before saving."
506 :group 'gnus-article-saving
509 (defcustom gnus-prompt-before-saving 'always
510 "*This variable says how much prompting is to be done when saving articles.
511 If it is nil, no prompting will be done, and the articles will be
512 saved to the default files. If this variable is `always', each and
513 every article that is saved will be preceded by a prompt, even when
514 saving large batches of articles. If this variable is neither nil not
515 `always', there the user will be prompted once for a file name for
516 each invocation of the saving commands."
517 :group 'gnus-article-saving
518 :type '(choice (item always)
519 (item :tag "never" nil)
520 (sexp :tag "once" :format "%t\n" :value t)))
522 (defcustom gnus-saved-headers gnus-visible-headers
523 "Headers to keep if `gnus-save-all-headers' is nil.
524 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
525 If that variable is nil, however, all headers that match this regexp
526 will be kept while the rest will be deleted before saving."
527 :group 'gnus-article-saving
530 (defcustom gnus-default-article-saver 'gnus-summary-save-in-rmail
531 "A function to save articles in your favourite format.
532 The function must be interactively callable (in other words, it must
533 be an Emacs command).
535 Gnus provides the following functions:
537 * gnus-summary-save-in-rmail (Rmail format)
538 * gnus-summary-save-in-mail (Unix mail format)
539 * gnus-summary-save-in-folder (MH folder)
540 * gnus-summary-save-in-file (article format)
541 * gnus-summary-save-body-in-file (article body)
542 * gnus-summary-save-in-vm (use VM's folder format)
543 * gnus-summary-write-to-file (article format -- overwrite)."
544 :group 'gnus-article-saving
545 :type '(radio (function-item gnus-summary-save-in-rmail)
546 (function-item gnus-summary-save-in-mail)
547 (function-item gnus-summary-save-in-folder)
548 (function-item gnus-summary-save-in-file)
549 (function-item gnus-summary-save-body-in-file)
550 (function-item gnus-summary-save-in-vm)
551 (function-item gnus-summary-write-to-file)
554 (defcustom gnus-rmail-save-name 'gnus-plain-save-name
555 "A function generating a file name to save articles in Rmail format.
556 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
557 :group 'gnus-article-saving
560 (defcustom gnus-mail-save-name 'gnus-plain-save-name
561 "A function generating a file name to save articles in Unix mail format.
562 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
563 :group 'gnus-article-saving
566 (defcustom gnus-folder-save-name 'gnus-folder-save-name
567 "A function generating a file name to save articles in MH folder.
568 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
569 :group 'gnus-article-saving
572 (defcustom gnus-file-save-name 'gnus-numeric-save-name
573 "A function generating a file name to save articles in article format.
574 The function is called with NEWSGROUP, HEADERS, and optional
576 :group 'gnus-article-saving
579 (defcustom gnus-split-methods
580 '((gnus-article-archive-name)
581 (gnus-article-nndoc-name))
582 "*Variable used to suggest where articles are to be saved.
583 For instance, if you would like to save articles related to Gnus in
584 the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
585 you could set this variable to something like:
587 '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
588 (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
590 This variable is an alist where the key is the match and the
591 value is a list of possible files to save in if the match is
594 If the match is a string, it is used as a regexp match on the
595 article. If the match is a symbol, that symbol will be funcalled
596 from the buffer of the article to be saved with the newsgroup as
597 the parameter. If it is a list, it will be evaled in the same
600 If this form or function returns a string, this string will be
601 used as a possible file name; and if it returns a non-nil list,
602 that list will be used as possible file names."
603 :group 'gnus-article-saving
604 :type '(repeat (choice (list :value (fun) function)
605 (cons :value ("" "") regexp (repeat string))
608 (defcustom gnus-page-delimiter "^\^L"
609 "*Regexp describing what to use as article page delimiters.
610 The default value is \"^\^L\", which is a form linefeed at the
611 beginning of a line."
613 :group 'gnus-article-various)
615 (defcustom gnus-article-mode-line-format "Gnus: %g [%w] %S%m"
616 "*The format specification for the article mode line.
617 See `gnus-summary-mode-line-format' for a closer description.
619 The following additional specs are available:
621 %w The article washing status.
622 %m The number of MIME parts in the article."
624 :group 'gnus-article-various)
626 (defcustom gnus-article-mode-hook nil
627 "*A hook for Gnus article mode."
629 :group 'gnus-article-various)
631 (when (featurep 'xemacs)
632 ;; Extracted from gnus-xmas-define in order to preserve user settings
633 (when (fboundp 'turn-off-scroll-in-place)
634 (add-hook 'gnus-article-mode-hook 'turn-off-scroll-in-place))
635 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
636 (add-hook 'gnus-article-mode-hook 'gnus-xmas-article-menu-add))
638 (defcustom gnus-article-menu-hook nil
639 "*Hook run after the creation of the article mode menu."
641 :group 'gnus-article-various)
643 (defcustom gnus-article-prepare-hook nil
644 "*A hook called after an article has been prepared in the article buffer."
646 :group 'gnus-article-various)
648 (defcustom gnus-copy-article-ignored-headers nil
649 "List of headers to be removed when copying an article.
650 Each element is a regular expression."
651 :version "23.0" ;; No Gnus
652 :type '(repeat regexp)
653 :group 'gnus-article-various)
655 (make-obsolete-variable 'gnus-article-hide-pgp-hook
656 "This variable is obsolete in Gnus 5.10.")
659 '((t (:weight bold)))
660 "Face used for highlighting a button in the article buffer."
661 :group 'gnus-article-buttons)
663 (defcustom gnus-article-button-face 'gnus-button
664 "Face used for highlighting buttons in the article buffer.
666 An article button is a piece of text that you can activate by pressing
667 `RET' or `mouse-2' above it."
669 :group 'gnus-article-buttons)
671 (defcustom gnus-article-mouse-face 'highlight
672 "Face used for mouse highlighting in the article buffer.
674 Article buttons will be displayed in this face when the cursor is
677 :group 'gnus-article-buttons)
679 (defcustom gnus-signature-face 'gnus-signature
680 "Face used for highlighting a signature in the article buffer.
681 Obsolete; use the face `gnus-signature' for customizations instead."
683 :group 'gnus-article-highlight
684 :group 'gnus-article-signature)
686 (defface gnus-signature
689 "Face used for highlighting a signature in the article buffer."
690 :group 'gnus-article-highlight
691 :group 'gnus-article-signature)
692 ;; backward-compatibility alias
693 (put 'gnus-signature-face 'face-alias 'gnus-signature)
695 (defface gnus-header-from
698 (:foreground "spring green"))
701 (:foreground "red3"))
704 "Face used for displaying from headers."
705 :group 'gnus-article-headers
706 :group 'gnus-article-highlight)
707 ;; backward-compatibility alias
708 (put 'gnus-header-from-face 'face-alias 'gnus-header-from)
710 (defface gnus-header-subject
713 (:foreground "SeaGreen3"))
716 (:foreground "red4"))
718 (:bold t :italic t)))
719 "Face used for displaying subject headers."
720 :group 'gnus-article-headers
721 :group 'gnus-article-highlight)
722 ;; backward-compatibility alias
723 (put 'gnus-header-subject-face 'face-alias 'gnus-header-subject)
725 (defface gnus-header-newsgroups
728 (:foreground "yellow" :italic t))
731 (:foreground "MidnightBlue" :italic t))
734 "Face used for displaying newsgroups headers.
735 In the default setup this face is only used for crossposted
737 :group 'gnus-article-headers
738 :group 'gnus-article-highlight)
739 ;; backward-compatibility alias
740 (put 'gnus-header-newsgroups-face 'face-alias 'gnus-header-newsgroups)
742 (defface gnus-header-name
745 (:foreground "SeaGreen"))
748 (:foreground "maroon"))
751 "Face used for displaying header names."
752 :group 'gnus-article-headers
753 :group 'gnus-article-highlight)
754 ;; backward-compatibility alias
755 (put 'gnus-header-name-face 'face-alias 'gnus-header-name)
757 (defface gnus-header-content
760 (:foreground "forest green" :italic t))
763 (:foreground "indianred4" :italic t))
765 (:italic t))) "Face used for displaying header content."
766 :group 'gnus-article-headers
767 :group 'gnus-article-highlight)
768 ;; backward-compatibility alias
769 (put 'gnus-header-content-face 'face-alias 'gnus-header-content)
771 (defcustom gnus-header-face-alist
772 '(("From" nil gnus-header-from)
773 ("Subject" nil gnus-header-subject)
774 ("Newsgroups:.*," nil gnus-header-newsgroups)
775 ("" gnus-header-name gnus-header-content))
776 "*Controls highlighting of article headers.
778 An alist of the form (HEADER NAME CONTENT).
780 HEADER is a regular expression which should match the name of a
781 header and NAME and CONTENT are either face names or nil.
783 The name of each header field will be displayed using the face
784 specified by the first element in the list where HEADER matches
785 the header name and NAME is non-nil. Similarly, the content will
786 be displayed by the first non-nil matching CONTENT face."
787 :group 'gnus-article-headers
788 :group 'gnus-article-highlight
789 :type '(repeat (list (regexp :tag "Header")
791 (item :tag "skip" nil)
792 (face :value default))
793 (choice :tag "Content"
794 (item :tag "skip" nil)
795 (face :value default)))))
797 (defcustom gnus-face-properties-alist (if (featurep 'xemacs)
798 '((xface . (:face gnus-x-face)))
799 '((pbm . (:face gnus-x-face))
801 "Alist of image types and properties applied to Face and X-Face images.
804 ;; Specify the altitude of Face images in the From header.
805 \(setq gnus-face-properties-alist
806 '((pbm . (:face gnus-x-face :ascent 80))
807 (png . (:ascent 80))))
809 ;; Show Face images as pressed buttons.
810 \(setq gnus-face-properties-alist
811 '((pbm . (:face gnus-x-face :relief -2))
812 (png . (:relief -2))))
814 See the manual for the valid properties for various image types.
815 Currently, `pbm' is used for X-Face images and `png' is used for Face
816 images in Emacs. Only the `:face' property is effective on the `xface'
817 image type in XEmacs if it is built with the libcompface library."
818 :version "23.0" ;; No Gnus
819 :group 'gnus-article-headers
820 :type '(repeat (cons :format "%v" (symbol :tag "Image type") plist)))
822 (defcustom gnus-article-decode-hook
823 '(article-decode-charset article-decode-encoded-words
824 article-decode-group-name article-decode-idna-rhs)
825 "*Hook run to decode charsets in articles."
826 :group 'gnus-article-headers
829 (defcustom gnus-display-mime-function 'gnus-display-mime
830 "Function to display MIME articles."
831 :group 'gnus-article-mime
834 (defvar gnus-decode-header-function 'mail-decode-encoded-word-region
835 "Function used to decode headers.")
837 (defvar gnus-article-dumbquotes-map
857 "Table for MS-to-Latin1 translation.")
859 (defcustom gnus-ignored-mime-types nil
860 "List of MIME types that should be ignored by Gnus."
862 :group 'gnus-article-mime
863 :type '(repeat regexp))
865 (defcustom gnus-unbuttonized-mime-types '(".*/.*")
866 "List of MIME types that should not be given buttons when rendered inline.
867 See also `gnus-buttonized-mime-types' which may override this variable.
868 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
870 :group 'gnus-article-mime
871 :type '(repeat regexp))
873 (defcustom gnus-buttonized-mime-types (unless (eq mm-verify-option 'never)
874 '("multipart/signed"))
875 "List of MIME types that should be given buttons when rendered inline.
876 If set, this variable overrides `gnus-unbuttonized-mime-types'.
877 To see e.g. security buttons you could set this to
878 `(\"multipart/signed\")'. You could also add \"multipart/alternative\" to
879 this list to display radio buttons that allow you to choose one of two
880 media types those mails include. See also `mm-discouraged-alternatives'.
881 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
883 :group 'gnus-article-mime
884 :type '(repeat regexp))
886 (defcustom gnus-inhibit-mime-unbuttonizing nil
887 "If non-nil, all MIME parts get buttons.
888 When nil (the default value), then some MIME parts do not get buttons,
889 as described by the variables `gnus-buttonized-mime-types' and
890 `gnus-unbuttonized-mime-types'."
892 :group 'gnus-article-mime
895 (defcustom gnus-body-boundary-delimiter "_"
896 "String used to delimit header and body.
897 This variable is used by `gnus-article-treat-body-boundary' which can
898 be controlled by `gnus-treat-body-boundary'."
900 :group 'gnus-article-various
901 :type '(choice (item :tag "None" :value nil)
904 (defcustom gnus-picon-databases '("/usr/lib/picon" "/usr/local/faces"
906 "Defines the location of the faces database.
907 For information on obtaining this database of pretty pictures, please
908 see http://www.cs.indiana.edu/picons/ftp/index.html"
910 :type '(repeat directory)
911 :link '(url-link :tag "download"
912 "http://www.cs.indiana.edu/picons/ftp/index.html")
913 :link '(custom-manual "(gnus)Picons")
916 (defun gnus-picons-installed-p ()
917 "Say whether picons are installed on your machine."
918 (let ((installed nil))
919 (dolist (database gnus-picon-databases)
920 (when (file-exists-p database)
924 (defcustom gnus-article-mime-part-function nil
925 "Function called with a MIME handle as the argument.
926 This is meant for people who want to do something automatic based
927 on parts -- for instance, adding Vcard info to a database."
928 :group 'gnus-article-mime
929 :type '(choice (const nil)
932 (defcustom gnus-mime-multipart-functions nil
933 "An alist of MIME types to functions to display them."
935 :group 'gnus-article-mime
936 :type '(repeat (cons :format "%v" (string :tag "MIME type") function)))
938 (defcustom gnus-article-date-lapsed-new-header nil
939 "Whether the X-Sent and Date headers can coexist.
940 When using `gnus-treat-date-lapsed', the \"X-Sent:\" header will
941 either replace the old \"Date:\" header (if this variable is nil), or
942 be added below it (otherwise)."
944 :group 'gnus-article-headers
947 (defcustom gnus-article-mime-match-handle-function 'undisplayed-alternative
948 "Function called with a MIME handle as the argument.
949 This is meant for people who want to view first matched part.
950 For `undisplayed-alternative' (default), the first undisplayed
951 part or alternative part is used. For `undisplayed', the first
952 undisplayed part is used. For a function, the first part which
953 the function return t is used. For nil, the first part is
956 :group 'gnus-article-mime
958 (item :tag "first" :value nil)
959 (item :tag "undisplayed" :value undisplayed)
960 (item :tag "undisplayed or alternative"
961 :value undisplayed-alternative)
964 (defcustom gnus-mime-action-alist
965 '(("save to file" . gnus-mime-save-part)
966 ("save and strip" . gnus-mime-save-part-and-strip)
967 ("replace with file" . gnus-mime-replace-part)
968 ("delete part" . gnus-mime-delete-part)
969 ("display as text" . gnus-mime-inline-part)
970 ("view the part" . gnus-mime-view-part)
971 ("pipe to command" . gnus-mime-pipe-part)
972 ("toggle display" . gnus-article-press-button)
973 ("toggle display" . gnus-article-view-part-as-charset)
974 ("view as type" . gnus-mime-view-part-as-type)
975 ("view internally" . gnus-mime-view-part-internally)
976 ("view externally" . gnus-mime-view-part-externally))
977 "An alist of actions that run on the MIME attachment."
978 :group 'gnus-article-mime
979 :type '(repeat (cons (string :tag "name")
982 (defcustom gnus-auto-select-part 1
983 "Advance to next MIME part when deleting or stripping parts.
985 When 0, point will be placed on the same part as before. When
986 positive (negative), move point forward (backwards) this many
987 parts. When nil, redisplay article."
988 :version "23.0" ;; No Gnus
989 :group 'gnus-article-mime
990 :type '(choice (const nil :tag "Redisplay article.")
991 (const 1 :tag "Next part.")
992 (const 0 :tag "Current part.")
996 ;;; The treatment variables
999 (defvar gnus-part-display-hook nil
1000 "Hook called on parts that are to receive treatment.")
1002 (defvar gnus-article-treat-custom
1003 '(choice (const :tag "Off" nil)
1005 (const :tag "Header" head)
1006 (const :tag "First" first)
1007 (const :tag "Last" last)
1008 (integer :tag "Less")
1009 (repeat :tag "Groups" regexp)
1010 (sexp :tag "Predicate")))
1012 (defvar gnus-article-treat-head-custom
1013 '(choice (const :tag "Off" nil)
1014 (const :tag "Header" head)))
1016 (defvar gnus-article-treat-types '("text/plain" "text/x-verbatim"
1020 (defvar gnus-inhibit-treatment nil
1021 "Whether to inhibit treatment.")
1023 (defcustom gnus-treat-highlight-signature '(or t (typep "text/x-vcard"))
1024 "Highlight the signature.
1025 Valid values are nil, t, `head', `first', `last', an integer or a
1026 predicate. See Info node `(gnus)Customizing Articles'."
1027 :group 'gnus-article-treat
1028 :link '(custom-manual "(gnus)Customizing Articles")
1029 :type gnus-article-treat-custom)
1030 (put 'gnus-treat-highlight-signature 'highlight t)
1032 (defcustom gnus-treat-buttonize 100000
1034 Valid values are nil, t, `head', `first', `last', an integer or a
1035 predicate. See Info node `(gnus)Customizing Articles'."
1036 :group 'gnus-article-treat
1037 :link '(custom-manual "(gnus)Customizing Articles")
1038 :type gnus-article-treat-custom)
1039 (put 'gnus-treat-buttonize 'highlight t)
1041 (defcustom gnus-treat-buttonize-head 'head
1042 "Add buttons to the head.
1043 Valid values are nil, t, `head', `first', `last', an integer or a
1044 predicate. See Info node `(gnus)Customizing Articles'."
1045 :group 'gnus-article-treat
1046 :link '(custom-manual "(gnus)Customizing Articles")
1047 :type gnus-article-treat-head-custom)
1048 (put 'gnus-treat-buttonize-head 'highlight t)
1050 (defcustom gnus-treat-emphasize
1051 (and (or window-system
1055 Valid values are nil, t, `head', `first', `last', an integer or a
1056 predicate. See Info node `(gnus)Customizing Articles'."
1057 :group 'gnus-article-treat
1058 :link '(custom-manual "(gnus)Customizing Articles")
1059 :type gnus-article-treat-custom)
1060 (put 'gnus-treat-emphasize 'highlight t)
1062 (defcustom gnus-treat-strip-cr nil
1063 "Remove carriage returns.
1064 Valid values are nil, t, `head', `first', `last', an integer or a
1065 predicate. See Info node `(gnus)Customizing Articles'."
1067 :group 'gnus-article-treat
1068 :link '(custom-manual "(gnus)Customizing Articles")
1069 :type gnus-article-treat-custom)
1071 (defcustom gnus-treat-unsplit-urls nil
1072 "Remove newlines from within URLs.
1073 Valid values are nil, t, `head', `first', `last', an integer or a
1074 predicate. See Info node `(gnus)Customizing Articles'."
1076 :group 'gnus-article-treat
1077 :link '(custom-manual "(gnus)Customizing Articles")
1078 :type gnus-article-treat-custom)
1080 (defcustom gnus-treat-leading-whitespace nil
1081 "Remove leading whitespace in headers.
1082 Valid values are nil, t, `head', `first', `last', an integer or a
1083 predicate. See Info node `(gnus)Customizing Articles'."
1085 :group 'gnus-article-treat
1086 :link '(custom-manual "(gnus)Customizing Articles")
1087 :type gnus-article-treat-custom)
1089 (defcustom gnus-treat-hide-headers 'head
1091 Valid values are nil, t, `head', `first', `last', an integer or a
1092 predicate. See Info node `(gnus)Customizing Articles'."
1093 :group 'gnus-article-treat
1094 :link '(custom-manual "(gnus)Customizing Articles")
1095 :type gnus-article-treat-head-custom)
1097 (defcustom gnus-treat-hide-boring-headers nil
1098 "Hide boring headers.
1099 Valid values are nil, t, `head', `first', `last', an integer or a
1100 predicate. See Info node `(gnus)Customizing Articles'."
1101 :group 'gnus-article-treat
1102 :link '(custom-manual "(gnus)Customizing Articles")
1103 :type gnus-article-treat-head-custom)
1105 (defcustom gnus-treat-hide-signature nil
1106 "Hide the signature.
1107 Valid values are nil, t, `head', `first', `last', an integer or a
1108 predicate. See Info node `(gnus)Customizing Articles'."
1109 :group 'gnus-article-treat
1110 :link '(custom-manual "(gnus)Customizing Articles")
1111 :type gnus-article-treat-custom)
1113 (defcustom gnus-treat-fill-article nil
1115 Valid values are nil, t, `head', `first', `last', an integer or a
1116 predicate. See Info node `(gnus)Customizing Articles'."
1117 :group 'gnus-article-treat
1118 :link '(custom-manual "(gnus)Customizing Articles")
1119 :type gnus-article-treat-custom)
1121 (defcustom gnus-treat-hide-citation nil
1123 Valid values are nil, t, `head', `first', `last', an integer or a
1124 predicate. See Info node `(gnus)Customizing Articles'."
1125 :group 'gnus-article-treat
1126 :link '(custom-manual "(gnus)Customizing Articles")
1127 :type gnus-article-treat-custom)
1129 (defcustom gnus-treat-hide-citation-maybe nil
1131 Valid values are nil, t, `head', `first', `last', an integer or a
1132 predicate. See Info node `(gnus)Customizing Articles'."
1133 :group 'gnus-article-treat
1134 :link '(custom-manual "(gnus)Customizing Articles")
1135 :type gnus-article-treat-custom)
1137 (defcustom gnus-treat-strip-list-identifiers 'head
1138 "Strip list identifiers from `gnus-list-identifiers`.
1139 Valid values are nil, t, `head', `first', `last', an integer or a
1140 predicate. See Info node `(gnus)Customizing Articles'."
1142 :group 'gnus-article-treat
1143 :link '(custom-manual "(gnus)Customizing Articles")
1144 :type gnus-article-treat-custom)
1146 (make-obsolete-variable 'gnus-treat-strip-pgp
1147 "This option is obsolete in Gnus 5.10.")
1149 (defcustom gnus-treat-strip-pem nil
1150 "Strip PEM signatures.
1151 Valid values are nil, t, `head', `first', `last', an integer or a
1152 predicate. See Info node `(gnus)Customizing Articles'."
1153 :group 'gnus-article-treat
1154 :link '(custom-manual "(gnus)Customizing Articles")
1155 :type gnus-article-treat-custom)
1157 (defcustom gnus-treat-strip-banner t
1158 "Strip banners from articles.
1159 The banner to be stripped is specified in the `banner' group parameter.
1160 Valid values are nil, t, `head', `first', `last', an integer or a
1161 predicate. See Info node `(gnus)Customizing Articles'."
1162 :group 'gnus-article-treat
1163 :link '(custom-manual "(gnus)Customizing Articles")
1164 :type gnus-article-treat-custom)
1166 (defcustom gnus-treat-highlight-headers 'head
1167 "Highlight the headers.
1168 Valid values are nil, t, `head', `first', `last', an integer or a
1169 predicate. See Info node `(gnus)Customizing Articles'."
1170 :group 'gnus-article-treat
1171 :link '(custom-manual "(gnus)Customizing Articles")
1172 :type gnus-article-treat-head-custom)
1173 (put 'gnus-treat-highlight-headers 'highlight t)
1175 (defcustom gnus-treat-highlight-citation t
1176 "Highlight cited text.
1177 Valid values are nil, t, `head', `first', `last', an integer or a
1178 predicate. See Info node `(gnus)Customizing Articles'."
1179 :group 'gnus-article-treat
1180 :link '(custom-manual "(gnus)Customizing Articles")
1181 :type gnus-article-treat-custom)
1182 (put 'gnus-treat-highlight-citation 'highlight t)
1184 (defcustom gnus-treat-date-ut nil
1185 "Display the Date in UT (GMT).
1186 Valid values are nil, t, `head', `first', `last', an integer or a
1187 predicate. See Info node `(gnus)Customizing Articles'."
1188 :group 'gnus-article-treat
1189 :link '(custom-manual "(gnus)Customizing Articles")
1190 :type gnus-article-treat-head-custom)
1192 (defcustom gnus-treat-date-local nil
1193 "Display the Date in the local timezone.
1194 Valid values are nil, t, `head', `first', `last', an integer or a
1195 predicate. See Info node `(gnus)Customizing Articles'."
1196 :group 'gnus-article-treat
1197 :link '(custom-manual "(gnus)Customizing Articles")
1198 :type gnus-article-treat-head-custom)
1200 (defcustom gnus-treat-date-english nil
1201 "Display the Date in a format that can be read aloud in English.
1202 Valid values are nil, t, `head', `first', `last', an integer or a
1203 predicate. See Info node `(gnus)Customizing Articles'."
1205 :group 'gnus-article-treat
1206 :link '(custom-manual "(gnus)Customizing Articles")
1207 :type gnus-article-treat-head-custom)
1209 (defcustom gnus-treat-date-lapsed nil
1210 "Display the Date header in a way that says how much time has elapsed.
1211 Valid values are nil, t, `head', `first', `last', an integer or a
1212 predicate. See Info node `(gnus)Customizing Articles'."
1213 :group 'gnus-article-treat
1214 :link '(custom-manual "(gnus)Customizing Articles")
1215 :type gnus-article-treat-head-custom)
1217 (defcustom gnus-treat-date-original nil
1218 "Display the date in the original timezone.
1219 Valid values are nil, t, `head', `first', `last', an integer or a
1220 predicate. See Info node `(gnus)Customizing Articles'."
1221 :group 'gnus-article-treat
1222 :link '(custom-manual "(gnus)Customizing Articles")
1223 :type gnus-article-treat-head-custom)
1225 (defcustom gnus-treat-date-iso8601 nil
1226 "Display the date in the ISO8601 format.
1227 Valid values are nil, t, `head', `first', `last', an integer or a
1228 predicate. See Info node `(gnus)Customizing Articles'."
1230 :group 'gnus-article-treat
1231 :link '(custom-manual "(gnus)Customizing Articles")
1232 :type gnus-article-treat-head-custom)
1234 (defcustom gnus-treat-date-user-defined nil
1235 "Display the date in a user-defined format.
1236 The format is defined by the `gnus-article-time-format' variable.
1237 Valid values are nil, t, `head', `first', `last', an integer or a
1238 predicate. See Info node `(gnus)Customizing Articles'."
1239 :group 'gnus-article-treat
1240 :link '(custom-manual "(gnus)Customizing Articles")
1241 :type gnus-article-treat-head-custom)
1243 (defcustom gnus-treat-strip-headers-in-body t
1244 "Strip the X-No-Archive header line from the beginning of the body.
1245 Valid values are nil, t, `head', `first', `last', an integer or a
1246 predicate. See Info node `(gnus)Customizing Articles'."
1248 :group 'gnus-article-treat
1249 :link '(custom-manual "(gnus)Customizing Articles")
1250 :type gnus-article-treat-custom)
1252 (defcustom gnus-treat-strip-trailing-blank-lines nil
1253 "Strip trailing blank lines.
1254 Valid values are nil, t, `head', `first', `last', an integer or a
1255 predicate. See Info node `(gnus)Customizing Articles'.
1257 When set to t, it also strips trailing blanks in all MIME parts.
1258 Consider to use `last' instead."
1259 :group 'gnus-article-treat
1260 :link '(custom-manual "(gnus)Customizing Articles")
1261 :type gnus-article-treat-custom)
1263 (defcustom gnus-treat-strip-leading-blank-lines nil
1264 "Strip leading blank lines.
1265 Valid values are nil, t, `head', `first', `last', an integer or a
1266 predicate. See Info node `(gnus)Customizing Articles'.
1268 When set to t, it also strips trailing blanks in all MIME parts."
1269 :group 'gnus-article-treat
1270 :link '(custom-manual "(gnus)Customizing Articles")
1271 :type gnus-article-treat-custom)
1273 (defcustom gnus-treat-strip-multiple-blank-lines nil
1274 "Strip multiple blank lines.
1275 Valid values are nil, t, `head', `first', `last', an integer or a
1276 predicate. See Info node `(gnus)Customizing Articles'."
1277 :group 'gnus-article-treat
1278 :link '(custom-manual "(gnus)Customizing Articles")
1279 :type gnus-article-treat-custom)
1281 (defcustom gnus-treat-unfold-headers 'head
1282 "Unfold folded header lines.
1283 Valid values are nil, t, `head', `first', `last', an integer or a
1284 predicate. See Info node `(gnus)Customizing Articles'."
1286 :group 'gnus-article-treat
1287 :link '(custom-manual "(gnus)Customizing Articles")
1288 :type gnus-article-treat-custom)
1290 (defcustom gnus-treat-fold-headers nil
1292 Valid values are nil, t, `head', `first', `last', an integer or a
1293 predicate. See Info node `(gnus)Customizing Articles'."
1295 :group 'gnus-article-treat
1296 :link '(custom-manual "(gnus)Customizing Articles")
1297 :type gnus-article-treat-custom)
1299 (defcustom gnus-treat-fold-newsgroups 'head
1300 "Fold the Newsgroups and Followup-To headers.
1301 Valid values are nil, t, `head', `first', `last', an integer or a
1302 predicate. See Info node `(gnus)Customizing Articles'."
1304 :group 'gnus-article-treat
1305 :link '(custom-manual "(gnus)Customizing Articles")
1306 :type gnus-article-treat-custom)
1308 (defcustom gnus-treat-overstrike t
1309 "Treat overstrike highlighting.
1310 Valid values are nil, t, `head', `first', `last', an integer or a
1311 predicate. See Info node `(gnus)Customizing Articles'."
1312 :group 'gnus-article-treat
1313 :link '(custom-manual "(gnus)Customizing Articles")
1314 :type gnus-article-treat-custom)
1315 (put 'gnus-treat-overstrike 'highlight t)
1317 (defcustom gnus-treat-ansi-sequences (if (locate-library "ansi-color") t)
1318 "Treat ANSI SGR control sequences.
1319 Valid values are nil, t, `head', `first', `last', an integer or a
1320 predicate. See Info node `(gnus)Customizing Articles'."
1321 :group 'gnus-article-treat
1322 :link '(custom-manual "(gnus)Customizing Articles")
1323 :type gnus-article-treat-custom)
1325 (make-obsolete-variable 'gnus-treat-display-xface
1326 'gnus-treat-display-x-face)
1328 (defcustom gnus-treat-display-x-face
1329 (and (not noninteractive)
1330 (or (and (fboundp 'image-type-available-p)
1331 (image-type-available-p 'xbm)
1332 (string-match "^0x" (shell-command-to-string "uncompface"))
1333 (executable-find "icontopbm"))
1334 (and (featurep 'xemacs)
1337 "Display X-Face headers.
1338 Valid values are nil, t, `head', `first', `last', an integer or a
1339 predicate. See Info node `(gnus)Customizing Articles' and Info
1340 node `(gnus)X-Face' for details."
1341 :group 'gnus-article-treat
1343 :link '(custom-manual "(gnus)Customizing Articles")
1344 :link '(custom-manual "(gnus)X-Face")
1345 :type gnus-article-treat-head-custom
1346 :set (lambda (symbol value)
1349 (cond ((or (boundp symbol) (get symbol 'saved-value))
1351 ((boundp 'gnus-treat-display-xface)
1353 ** gnus-treat-display-xface is an obsolete variable;\
1354 use gnus-treat-display-x-face instead")
1355 (default-value 'gnus-treat-display-xface))
1356 ((get 'gnus-treat-display-xface 'saved-value)
1358 ** gnus-treat-display-xface is an obsolete variable;\
1359 use gnus-treat-display-x-face instead")
1360 (eval (car (get 'gnus-treat-display-xface 'saved-value))))
1363 (put 'gnus-treat-display-x-face 'highlight t)
1365 (defcustom gnus-treat-display-face
1366 (and (not noninteractive)
1367 (or (and (fboundp 'image-type-available-p)
1368 (image-type-available-p 'png))
1369 (and (featurep 'xemacs)
1372 "Display Face headers.
1373 Valid values are nil, t, `head', `first', `last', an integer or a
1374 predicate. See Info node `(gnus)Customizing Articles' and Info
1375 node `(gnus)X-Face' for details."
1376 :group 'gnus-article-treat
1378 :link '(custom-manual "(gnus)Customizing Articles")
1379 :link '(custom-manual "(gnus)X-Face")
1380 :type gnus-article-treat-head-custom)
1381 (put 'gnus-treat-display-face 'highlight t)
1383 (defcustom gnus-treat-display-smileys
1384 (if (or (and (featurep 'xemacs)
1386 (and (fboundp 'image-type-available-p)
1387 (image-type-available-p 'pbm)))
1390 Valid values are nil, t, `head', `first', `last', an integer or a
1391 predicate. See Info node `(gnus)Customizing Articles' and Info
1392 node `(gnus)Smileys' for details."
1393 :group 'gnus-article-treat
1395 :link '(custom-manual "(gnus)Customizing Articles")
1396 :link '(custom-manual "(gnus)Smileys")
1397 :type gnus-article-treat-custom)
1398 (put 'gnus-treat-display-smileys 'highlight t)
1400 (defcustom gnus-treat-from-picon
1401 (if (and (gnus-image-type-available-p 'xpm)
1402 (gnus-picons-installed-p))
1404 "Display picons in the From header.
1405 Valid values are nil, t, `head', `first', `last', an integer or a
1406 predicate. See Info node `(gnus)Customizing Articles' and Info
1407 node `(gnus)Picons' for details."
1409 :group 'gnus-article-treat
1411 :link '(custom-manual "(gnus)Customizing Articles")
1412 :link '(custom-manual "(gnus)Picons")
1413 :type gnus-article-treat-head-custom)
1414 (put 'gnus-treat-from-picon 'highlight t)
1416 (defcustom gnus-treat-mail-picon
1417 (if (and (gnus-image-type-available-p 'xpm)
1418 (gnus-picons-installed-p))
1420 "Display picons in To and Cc headers.
1421 Valid values are nil, t, `head', `first', `last', an integer or a
1422 predicate. See Info node `(gnus)Customizing Articles' and Info
1423 node `(gnus)Picons' for details."
1425 :group 'gnus-article-treat
1427 :link '(custom-manual "(gnus)Customizing Articles")
1428 :link '(custom-manual "(gnus)Picons")
1429 :type gnus-article-treat-head-custom)
1430 (put 'gnus-treat-mail-picon 'highlight t)
1432 (defcustom gnus-treat-newsgroups-picon
1433 (if (and (gnus-image-type-available-p 'xpm)
1434 (gnus-picons-installed-p))
1436 "Display picons in the Newsgroups and Followup-To headers.
1437 Valid values are nil, t, `head', `first', `last', an integer or a
1438 predicate. See Info node `(gnus)Customizing Articles' and Info
1439 node `(gnus)Picons' for details."
1441 :group 'gnus-article-treat
1443 :link '(custom-manual "(gnus)Customizing Articles")
1444 :link '(custom-manual "(gnus)Picons")
1445 :type gnus-article-treat-head-custom)
1446 (put 'gnus-treat-newsgroups-picon 'highlight t)
1448 (defcustom gnus-treat-body-boundary
1449 (if (and (eq window-system 'x)
1450 (or gnus-treat-newsgroups-picon
1451 gnus-treat-mail-picon
1452 gnus-treat-from-picon))
1454 "Draw a boundary at the end of the headers.
1455 Valid values are nil and `head'.
1456 See Info node `(gnus)Customizing Articles' for details."
1458 :group 'gnus-article-treat
1459 :link '(custom-manual "(gnus)Customizing Articles")
1460 :type gnus-article-treat-head-custom)
1462 (defcustom gnus-treat-capitalize-sentences nil
1463 "Capitalize sentence-starting words.
1464 Valid values are nil, t, `head', `first', `last', an integer or a
1465 predicate. See Info node `(gnus)Customizing Articles'."
1467 :group 'gnus-article-treat
1468 :link '(custom-manual "(gnus)Customizing Articles")
1469 :type gnus-article-treat-custom)
1471 (defcustom gnus-treat-wash-html nil
1473 Valid values are nil, t, `head', `first', `last', an integer or a
1474 predicate. See Info node `(gnus)Customizing Articles'."
1476 :group 'gnus-article-treat
1477 :link '(custom-manual "(gnus)Customizing Articles")
1478 :type gnus-article-treat-custom)
1480 (defcustom gnus-treat-fill-long-lines nil
1482 Valid values are nil, t, `head', `first', `last', an integer or a
1483 predicate. See Info node `(gnus)Customizing Articles'."
1484 :group 'gnus-article-treat
1485 :link '(custom-manual "(gnus)Customizing Articles")
1486 :type gnus-article-treat-custom)
1488 (defcustom gnus-treat-play-sounds nil
1490 Valid values are nil, t, `head', `first', `last', an integer or a
1491 predicate. See Info node `(gnus)Customizing Articles'."
1493 :group 'gnus-article-treat
1494 :link '(custom-manual "(gnus)Customizing Articles")
1495 :type gnus-article-treat-custom)
1497 (defcustom gnus-treat-translate nil
1498 "Translate articles from one language to another.
1499 Valid values are nil, t, `head', `first', `last', an integer or a
1500 predicate. See Info node `(gnus)Customizing Articles'."
1502 :group 'gnus-article-treat
1503 :link '(custom-manual "(gnus)Customizing Articles")
1504 :type gnus-article-treat-custom)
1506 (defcustom gnus-treat-x-pgp-sig nil
1508 To automatically treat X-PGP-Sig, set it to head.
1509 Valid values are nil, t, `head', `first', `last', an integer or a
1510 predicate. See Info node `(gnus)Customizing Articles'."
1512 :group 'gnus-article-treat
1513 :group 'mime-security
1514 :link '(custom-manual "(gnus)Customizing Articles")
1515 :type gnus-article-treat-custom)
1517 (defvar gnus-article-encrypt-protocol-alist
1518 '(("PGP" . mml2015-self-encrypt)))
1520 ;; Set to nil if more than one protocol added to
1521 ;; gnus-article-encrypt-protocol-alist.
1522 (defcustom gnus-article-encrypt-protocol "PGP"
1523 "The protocol used for encrypt articles.
1524 It is a string, such as \"PGP\". If nil, ask user."
1527 :group 'mime-security)
1529 (defvar gnus-article-wash-function nil
1530 "Function used for converting HTML into text.")
1532 (defcustom gnus-use-idna (and (condition-case nil (require 'idna) (file-error))
1533 (mm-coding-system-p 'utf-8)
1534 (executable-find idna-program))
1535 "Whether IDNA decoding of headers is used when viewing messages.
1536 This requires GNU Libidn, and by default only enabled if it is found."
1538 :group 'gnus-article-headers
1541 (defcustom gnus-article-over-scroll nil
1542 "If non-nil, allow scrolling the article buffer even when there no more text."
1544 :group 'gnus-article
1547 ;;; Internal variables
1549 (defvar gnus-english-month-names
1550 '("January" "February" "March" "April" "May" "June" "July" "August"
1551 "September" "October" "November" "December"))
1553 (defvar gnus-button-regexp nil)
1554 (defvar gnus-button-marker-list nil)
1555 ;; Regexp matching any of the regexps from `gnus-button-alist'.
1557 (defvar gnus-button-last nil)
1558 ;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
1560 (defvar article-goto-body-goes-to-point-min-p nil)
1561 (defvar gnus-article-wash-types nil)
1562 (defvar gnus-article-emphasis-alist nil)
1563 (defvar gnus-article-image-alist nil)
1565 (defvar gnus-article-mime-handle-alist-1 nil)
1566 (defvar gnus-treatment-function-alist
1567 '((gnus-treat-x-pgp-sig gnus-article-verify-x-pgp-sig)
1568 (gnus-treat-strip-banner gnus-article-strip-banner)
1569 (gnus-treat-strip-headers-in-body gnus-article-strip-headers-in-body)
1570 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1571 (gnus-treat-buttonize gnus-article-add-buttons)
1572 (gnus-treat-fill-article gnus-article-fill-cited-article)
1573 (gnus-treat-fill-long-lines gnus-article-fill-long-lines)
1574 (gnus-treat-strip-cr gnus-article-remove-cr)
1575 (gnus-treat-unsplit-urls gnus-article-unsplit-urls)
1576 (gnus-treat-date-ut gnus-article-date-ut)
1577 (gnus-treat-date-local gnus-article-date-local)
1578 (gnus-treat-date-english gnus-article-date-english)
1579 (gnus-treat-date-original gnus-article-date-original)
1580 (gnus-treat-date-user-defined gnus-article-date-user)
1581 (gnus-treat-date-iso8601 gnus-article-date-iso8601)
1582 (gnus-treat-date-lapsed gnus-article-date-lapsed)
1583 (gnus-treat-display-x-face gnus-article-display-x-face)
1584 (gnus-treat-display-face gnus-article-display-face)
1585 (gnus-treat-hide-headers gnus-article-maybe-hide-headers)
1586 (gnus-treat-hide-boring-headers gnus-article-hide-boring-headers)
1587 (gnus-treat-hide-signature gnus-article-hide-signature)
1588 (gnus-treat-strip-list-identifiers gnus-article-hide-list-identifiers)
1589 (gnus-treat-leading-whitespace gnus-article-remove-leading-whitespace)
1590 (gnus-treat-strip-pem gnus-article-hide-pem)
1591 (gnus-treat-from-picon gnus-treat-from-picon)
1592 (gnus-treat-mail-picon gnus-treat-mail-picon)
1593 (gnus-treat-newsgroups-picon gnus-treat-newsgroups-picon)
1594 (gnus-treat-highlight-headers gnus-article-highlight-headers)
1595 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1596 (gnus-treat-strip-trailing-blank-lines
1597 gnus-article-remove-trailing-blank-lines)
1598 (gnus-treat-strip-leading-blank-lines
1599 gnus-article-strip-leading-blank-lines)
1600 (gnus-treat-strip-multiple-blank-lines
1601 gnus-article-strip-multiple-blank-lines)
1602 (gnus-treat-overstrike gnus-article-treat-overstrike)
1603 (gnus-treat-ansi-sequences gnus-article-treat-ansi-sequences)
1604 (gnus-treat-unfold-headers gnus-article-treat-unfold-headers)
1605 (gnus-treat-fold-newsgroups gnus-article-treat-fold-newsgroups)
1606 (gnus-treat-fold-headers gnus-article-treat-fold-headers)
1607 (gnus-treat-buttonize-head gnus-article-add-buttons-to-head)
1608 (gnus-treat-display-smileys gnus-treat-smiley)
1609 (gnus-treat-capitalize-sentences gnus-article-capitalize-sentences)
1610 (gnus-treat-wash-html gnus-article-wash-html)
1611 (gnus-treat-emphasize gnus-article-emphasize)
1612 (gnus-treat-hide-citation gnus-article-hide-citation)
1613 (gnus-treat-hide-citation-maybe gnus-article-hide-citation-maybe)
1614 (gnus-treat-highlight-citation gnus-article-highlight-citation)
1615 (gnus-treat-body-boundary gnus-article-treat-body-boundary)
1616 (gnus-treat-play-sounds gnus-earcon-display)))
1618 (defvar gnus-article-mime-handle-alist nil)
1619 (defvar article-lapsed-timer nil)
1620 (defvar gnus-article-current-summary nil)
1622 (defvar gnus-article-mode-syntax-table
1623 (let ((table (copy-syntax-table text-mode-syntax-table)))
1624 ;; This causes the citation match run O(2^n).
1625 ;; (modify-syntax-entry ?- "w" table)
1626 (modify-syntax-entry ?> ")<" table)
1627 (modify-syntax-entry ?< "(>" table)
1628 ;; make M-. in article buffers work for `foo' strings
1629 (modify-syntax-entry ?' " " table)
1630 (modify-syntax-entry ?` " " table)
1632 "Syntax table used in article mode buffers.
1633 Initialized from `text-mode-syntax-table.")
1635 (defvar gnus-save-article-buffer nil)
1637 (defvar gnus-article-mode-line-format-alist
1638 (nconc '((?w (gnus-article-wash-status) ?s)
1639 (?m (gnus-article-mime-part-status) ?s))
1640 gnus-summary-mode-line-format-alist))
1642 (defvar gnus-number-of-articles-to-be-saved nil)
1644 (defvar gnus-inhibit-hiding nil)
1646 (defvar gnus-article-edit-mode nil)
1648 ;;; Macros for dealing with the article buffer.
1650 (defmacro gnus-with-article-headers (&rest forms)
1652 (set-buffer gnus-article-buffer)
1654 (let ((inhibit-read-only t)
1655 (inhibit-point-motion-hooks t)
1656 (case-fold-search t))
1657 (article-narrow-to-head)
1660 (put 'gnus-with-article-headers 'lisp-indent-function 0)
1661 (put 'gnus-with-article-headers 'edebug-form-spec '(body))
1663 (defmacro gnus-with-article-buffer (&rest forms)
1665 (set-buffer gnus-article-buffer)
1666 (let ((inhibit-read-only t))
1669 (put 'gnus-with-article-buffer 'lisp-indent-function 0)
1670 (put 'gnus-with-article-buffer 'edebug-form-spec '(body))
1672 (defun gnus-article-goto-header (header)
1673 "Go to HEADER, which is a regular expression."
1674 (re-search-forward (concat "^\\(" header "\\):") nil t))
1676 (defsubst gnus-article-hide-text (b e props)
1677 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1678 (gnus-add-text-properties-when 'article-type nil b e props)
1679 (when (memq 'intangible props)
1681 (max (1- b) (point-min))
1682 b 'intangible (cddr (memq 'intangible props)))))
1684 (defsubst gnus-article-unhide-text (b e)
1685 "Remove hidden text properties from region between B and E."
1686 (remove-text-properties b e gnus-hidden-properties)
1687 (when (memq 'intangible gnus-hidden-properties)
1688 (put-text-property (max (1- b) (point-min))
1689 b 'intangible nil)))
1691 (defun gnus-article-hide-text-type (b e type)
1692 "Hide text of TYPE between B and E."
1693 (gnus-add-wash-type type)
1694 (gnus-article-hide-text
1695 b e (cons 'article-type (cons type gnus-hidden-properties))))
1697 (defun gnus-article-unhide-text-type (b e type)
1698 "Unhide text of TYPE between B and E."
1699 (gnus-delete-wash-type type)
1700 (remove-text-properties
1701 b e (cons 'article-type (cons type gnus-hidden-properties)))
1702 (when (memq 'intangible gnus-hidden-properties)
1703 (put-text-property (max (1- b) (point-min))
1704 b 'intangible nil)))
1706 (defun gnus-article-hide-text-of-type (type)
1707 "Hide text of TYPE in the current buffer."
1709 (let ((b (point-min))
1711 (while (setq b (text-property-any b e 'article-type type))
1712 (add-text-properties b (incf b) gnus-hidden-properties)))))
1714 (defun gnus-article-delete-text-of-type (type)
1715 "Delete text of TYPE in the current buffer."
1717 (let ((b (point-min)))
1718 (if (eq type 'multipart)
1719 ;; Remove MIME buttons associated with multipart/alternative parts.
1722 (while (if (get-text-property (point) 'gnus-part)
1724 (when (setq b (next-single-property-change (point)
1729 (skip-chars-forward "\n")
1730 (when (eq (get-text-property b 'article-type) 'multipart)
1731 (delete-region b (point)))))
1732 (while (setq b (text-property-any b (point-max) 'article-type type))
1734 b (or (text-property-not-all b (point-max) 'article-type type)
1737 (defun gnus-article-delete-invisible-text ()
1738 "Delete all invisible text in the current buffer."
1740 (let ((b (point-min)))
1741 (while (setq b (text-property-any b (point-max) 'invisible t))
1743 b (or (text-property-not-all b (point-max) 'invisible t)
1746 (defun gnus-article-text-type-exists-p (type)
1747 "Say whether any text of type TYPE exists in the buffer."
1748 (text-property-any (point-min) (point-max) 'article-type type))
1750 (defsubst gnus-article-header-rank ()
1751 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1752 (let ((list gnus-sorted-header-list)
1755 (if (looking-at (car list))
1757 (setq list (cdr list))
1761 (defun article-hide-headers (&optional arg delete)
1762 "Hide unwanted headers and possibly sort them as well."
1764 ;; This function might be inhibited.
1765 (unless gnus-inhibit-hiding
1766 (let ((inhibit-read-only nil)
1767 (case-fold-search t)
1768 (max (1+ (length gnus-sorted-header-list)))
1769 (inhibit-point-motion-hooks t)
1770 (cur (current-buffer))
1771 ignored visible beg)
1773 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1774 ;; group parameters, so we should go to the summary buffer.
1777 (progn (set-buffer gnus-summary-buffer) t)
1779 (setq ignored (when (not gnus-visible-headers)
1780 (cond ((stringp gnus-ignored-headers)
1781 gnus-ignored-headers)
1782 ((listp gnus-ignored-headers)
1783 (mapconcat 'identity
1784 gnus-ignored-headers
1786 visible (cond ((stringp gnus-visible-headers)
1787 gnus-visible-headers)
1788 ((and gnus-visible-headers
1789 (listp gnus-visible-headers))
1790 (mapconcat 'identity
1791 gnus-visible-headers
1795 ;; First we narrow to just the headers.
1796 (article-narrow-to-head)
1797 ;; Hide any "From " lines at the beginning of (mail) articles.
1798 (while (looking-at "From ")
1801 (delete-region (point-min) (point)))
1802 ;; Then treat the rest of the header lines.
1803 ;; Then we use the two regular expressions
1804 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1805 ;; select which header lines is to remain visible in the
1807 (while (re-search-forward "^[^ \t:]*:" nil t)
1809 ;; Mark the rank of the header.
1811 (point) (1+ (point)) 'message-rank
1812 (if (or (and visible (looking-at visible))
1814 (not (looking-at ignored))))
1815 (gnus-article-header-rank)
1818 (message-sort-headers-1)
1819 (when (setq beg (text-property-any
1820 (point-min) (point-max) 'message-rank (+ 2 max)))
1821 ;; We delete the unwanted headers.
1822 (gnus-add-wash-type 'headers)
1823 (add-text-properties (point-min) (+ 5 (point-min))
1824 '(article-type headers dummy-invisible t))
1825 (delete-region beg (point-max))))))))
1827 (defun article-hide-boring-headers (&optional arg)
1828 "Toggle hiding of headers that aren't very interesting.
1829 If given a negative prefix, always show; if given a positive prefix,
1831 (interactive (gnus-article-hidden-arg))
1832 (when (and (not (gnus-article-check-hidden-text 'boring-headers arg))
1833 (not gnus-show-all-headers))
1836 (let ((inhibit-read-only t)
1837 (inhibit-point-motion-hooks t))
1838 (article-narrow-to-head)
1839 (dolist (elem gnus-boring-article-headers)
1840 (goto-char (point-min))
1842 ;; Hide empty headers.
1844 (while (re-search-forward "^[^: \t]+:[ \t]*\n[^ \t]" nil t)
1846 (gnus-article-hide-text-type
1850 (if (re-search-forward "^[^ \t]" nil t)
1854 ;; Hide boring Newsgroups header.
1855 ((eq elem 'newsgroups)
1856 (when (gnus-string-equal
1857 (gnus-fetch-field "newsgroups")
1858 (gnus-group-real-name
1859 (if (boundp 'gnus-newsgroup-name)
1862 (gnus-article-hide-header "newsgroups")))
1863 ((eq elem 'to-address)
1864 (let ((to (message-fetch-field "to"))
1866 (gnus-parameter-to-address
1867 (if (boundp 'gnus-newsgroup-name)
1868 gnus-newsgroup-name ""))))
1869 (when (and to to-address
1872 ;; only one address in To
1873 (nth 1 (mail-extract-address-components to))
1875 (gnus-article-hide-header "to"))))
1877 (let ((to (message-fetch-field "to"))
1879 (gnus-parameter-to-list
1880 (if (boundp 'gnus-newsgroup-name)
1881 gnus-newsgroup-name ""))))
1882 (when (and to to-list
1885 ;; only one address in To
1886 (nth 1 (mail-extract-address-components to))
1888 (gnus-article-hide-header "to"))))
1890 (let ((cc (message-fetch-field "cc"))
1892 (gnus-parameter-to-list
1893 (if (boundp 'gnus-newsgroup-name)
1894 gnus-newsgroup-name ""))))
1895 (when (and cc to-list
1898 ;; only one address in CC
1899 (nth 1 (mail-extract-address-components cc))
1901 (gnus-article-hide-header "cc"))))
1902 ((eq elem 'followup-to)
1903 (when (gnus-string-equal
1904 (message-fetch-field "followup-to")
1905 (message-fetch-field "newsgroups"))
1906 (gnus-article-hide-header "followup-to")))
1907 ((eq elem 'reply-to)
1908 (if (gnus-group-find-parameter
1909 gnus-newsgroup-name 'broken-reply-to)
1910 (gnus-article-hide-header "reply-to")
1911 (let ((from (message-fetch-field "from"))
1912 (reply-to (message-fetch-field "reply-to")))
1919 (lambda (x) (downcase (cadr x)))
1920 (mail-extract-address-components from t))
1923 (lambda (x) (downcase (cadr x)))
1924 (mail-extract-address-components reply-to t))
1926 (gnus-article-hide-header "reply-to")))))
1928 (let ((date (message-fetch-field "date")))
1930 (< (days-between (current-time-string) date)
1932 (gnus-article-hide-header "date"))))
1934 (let ((to (message-fetch-field "to"))
1935 (cc (message-fetch-field "cc")))
1936 (when (> (length to) 1024)
1937 (gnus-article-hide-header "to"))
1938 (when (> (length cc) 1024)
1939 (gnus-article-hide-header "cc"))))
1943 (goto-char (point-min))
1944 (while (re-search-forward "^to:" nil t)
1945 (setq to-count (1+ to-count)))
1946 (when (> to-count 1)
1947 (while (> to-count 0)
1948 (goto-char (point-min))
1950 (re-search-forward "^to:" nil nil to-count)
1952 (narrow-to-region (point) (point-max))
1953 (gnus-article-hide-header "to"))
1954 (setq to-count (1- to-count))))
1955 (goto-char (point-min))
1956 (while (re-search-forward "^cc:" nil t)
1957 (setq cc-count (1+ cc-count)))
1958 (when (> cc-count 1)
1959 (while (> cc-count 0)
1960 (goto-char (point-min))
1962 (re-search-forward "^cc:" nil nil cc-count)
1964 (narrow-to-region (point) (point-max))
1965 (gnus-article-hide-header "cc"))
1966 (setq cc-count (1- cc-count)))))))))))))
1968 (defun gnus-article-hide-header (header)
1970 (goto-char (point-min))
1971 (when (re-search-forward (concat "^" header ":") nil t)
1972 (gnus-article-hide-text-type
1976 (if (re-search-forward "^[^ \t]" nil t)
1981 (defvar gnus-article-normalized-header-length 40
1982 "Length of normalized headers.")
1984 (defun article-normalize-headers ()
1985 "Make all header lines 40 characters long."
1987 (let ((inhibit-read-only t)
1991 (article-narrow-to-head)
1994 ((< (setq column (- (point-at-eol) (point)))
1995 gnus-article-normalized-header-length)
1997 (insert (make-string
1998 (- gnus-article-normalized-header-length column)
2000 ((> column gnus-article-normalized-header-length)
2001 (gnus-put-text-property
2003 (forward-char gnus-article-normalized-header-length)
2010 (forward-line 1))))))
2012 (defun article-treat-dumbquotes ()
2013 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2014 Note that this function guesses whether a character is a sm*rtq**t* or
2015 not, so it should only be used interactively.
2017 Sm*rtq**t*s are M****s***'s unilateral extension to the
2018 iso-8859-1 character map in an attempt to provide more quoting
2019 characters. If you see something like \\222 or \\264 where
2020 you're expecting some kind of apostrophe or quotation mark, then
2023 (article-translate-strings gnus-article-dumbquotes-map))
2025 (defun article-translate-characters (from to)
2026 "Translate all characters in the body of the article according to FROM and TO.
2027 FROM is a string of characters to translate from; to is a string of
2028 characters to translate to."
2030 (when (article-goto-body)
2031 (let ((inhibit-read-only t)
2032 (x (make-string 225 ?x))
2034 (while (< (incf i) (length x))
2037 (while (< i (length from))
2038 (aset x (aref from i) (aref to i))
2040 (translate-region (point) (point-max) x)))))
2042 (defun article-translate-strings (map)
2043 "Translate all string in the body of the article according to MAP.
2044 MAP is an alist where the elements are on the form (\"from\" \"to\")."
2046 (when (article-goto-body)
2047 (let ((inhibit-read-only t))
2050 (while (search-forward (car elem) nil t)
2051 (replace-match (cadr elem)))))))))
2053 (defun article-treat-overstrike ()
2054 "Translate overstrikes into bold text."
2057 (when (article-goto-body)
2058 (let ((inhibit-read-only t))
2059 (while (search-forward "\b" nil t)
2060 (let ((next (char-after))
2061 (previous (char-after (- (point) 2))))
2062 ;; We do the boldification/underlining by hiding the
2063 ;; overstrikes and putting the proper text property
2067 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
2068 (put-text-property (point) (1+ (point)) 'face 'bold))
2070 (gnus-article-hide-text-type
2071 (1- (point)) (1+ (point)) 'overstrike)
2073 (- (point) 2) (1- (point)) 'face 'underline))
2075 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
2077 (point) (1+ (point)) 'face 'underline)))))))))
2079 (defun article-treat-ansi-sequences ()
2080 "Translate ANSI SGR control sequences into overlays or extents."
2083 (when (article-goto-body)
2084 (let ((inhibit-read-only t))
2085 (ansi-color-apply-on-region (point) (point-max))))))
2087 (defun gnus-article-treat-unfold-headers ()
2088 "Unfold folded message headers.
2089 Only the headers that fit into the current window width will be
2092 (gnus-with-article-headers
2096 (mail-header-narrow-to-field)
2097 (let ((header (buffer-string)))
2100 (goto-char (point-min))
2101 (while (re-search-forward "\n[\t ]" nil t)
2102 (replace-match " " t t)))
2103 (setq length (- (point-max) (point-min) 1)))
2104 (when (< length (window-width))
2105 (while (re-search-forward "\n[\t ]" nil t)
2106 (replace-match " " t t)))
2107 (goto-char (point-max)))))))
2109 (defun gnus-article-treat-fold-headers ()
2110 "Fold message headers."
2112 (gnus-with-article-headers
2115 (mail-header-narrow-to-field)
2116 (mail-header-fold-field)
2117 (goto-char (point-max))))))
2119 (defun gnus-treat-smiley ()
2120 "Toggle display of textual emoticons (\"smileys\") as small graphical icons."
2122 (gnus-with-article-buffer
2123 (if (memq 'smiley gnus-article-wash-types)
2124 (gnus-delete-images 'smiley)
2126 (let ((images (smiley-region (point) (point-max))))
2128 (gnus-add-wash-type 'smiley)
2129 (dolist (image images)
2130 (gnus-add-image 'smiley image)))))))
2132 (defun gnus-article-remove-images ()
2133 "Remove all images from the article buffer."
2135 (gnus-with-article-buffer
2136 (dolist (elem gnus-article-image-alist)
2137 (gnus-delete-images (car elem)))))
2139 (defun gnus-article-treat-fold-newsgroups ()
2140 "Unfold folded message headers.
2141 Only the headers that fit into the current window width will be
2144 (gnus-with-article-headers
2145 (while (gnus-article-goto-header "newsgroups\\|followup-to")
2147 (mail-header-narrow-to-field)
2148 (while (re-search-forward ", *" nil t)
2149 (replace-match ", " t t))
2150 (mail-header-fold-field)
2151 (goto-char (point-max))))))
2153 (defun gnus-article-treat-body-boundary ()
2154 "Place a boundary line at the end of the headers."
2156 (when (and gnus-body-boundary-delimiter
2157 (> (length gnus-body-boundary-delimiter) 0))
2158 (gnus-with-article-headers
2159 (goto-char (point-max))
2160 (let ((start (point)))
2161 (insert "X-Boundary: ")
2162 (gnus-add-text-properties start (point) '(invisible t intangible t))
2164 (while (>= (1- (window-width)) (length str))
2165 (setq str (concat str gnus-body-boundary-delimiter)))
2166 (substring str 0 (1- (window-width))))
2168 (gnus-put-text-property start (point) 'gnus-decoration 'header)))))
2170 (defun article-fill-long-lines ()
2171 "Fill lines that are wider than the window width."
2174 (let ((inhibit-read-only t)
2175 (width (window-width (get-buffer-window (current-buffer)))))
2178 (let ((adaptive-fill-mode nil)) ;Why? -sm
2181 (when (>= (current-column) (min fill-column width))
2182 (narrow-to-region (min (1+ (point)) (point-max))
2184 (let ((goback (point-marker)))
2185 (fill-paragraph nil)
2186 (goto-char (marker-position goback)))
2188 (forward-line 1)))))))
2190 (defun article-capitalize-sentences ()
2191 "Capitalize the first word in each sentence."
2194 (let ((inhibit-read-only t)
2195 (paragraph-start "^[\n\^L]"))
2199 (forward-sentence)))))
2201 (defun article-remove-cr ()
2202 "Remove trailing CRs and then translate remaining CRs into LFs."
2205 (let ((inhibit-read-only t))
2206 (goto-char (point-min))
2207 (while (re-search-forward "\r+$" nil t)
2208 (replace-match "" t t))
2209 (goto-char (point-min))
2210 (while (search-forward "\r" nil t)
2211 (replace-match "\n" t t)))))
2213 (defun article-remove-trailing-blank-lines ()
2214 "Remove all trailing blank lines from the article."
2217 (let ((inhibit-read-only t))
2218 (goto-char (point-max))
2222 (while (and (not (bobp))
2223 (looking-at "^[ \t]*$")
2224 (not (gnus-annotation-in-region-p
2225 (point) (point-at-eol))))
2231 (defvar gnus-face-properties-alist))
2233 (defun article-display-face ()
2234 "Display any Face headers in the header."
2236 (let ((wash-face-p buffer-read-only))
2237 (gnus-with-article-headers
2238 ;; When displaying parts, this function can be called several times on
2239 ;; the same article, without any intended toggle semantic (as typing `W
2240 ;; D d' would have). So face deletion must occur only when we come from
2241 ;; an interactive command, that is when the *Article* buffer is
2243 (if (and wash-face-p (memq 'face gnus-article-wash-types))
2244 (gnus-delete-images 'face)
2245 (let (face faces from)
2246 (save-current-buffer
2247 (when (and wash-face-p
2248 (gnus-buffer-live-p gnus-original-article-buffer)
2249 (not (re-search-forward "^Face:[\t ]*" nil t)))
2250 (set-buffer gnus-original-article-buffer))
2252 (mail-narrow-to-head)
2253 (while (gnus-article-goto-header "Face")
2254 (push (mail-header-field-value) faces))))
2256 (goto-char (point-min))
2257 (let ((from (gnus-article-goto-header "from"))
2262 (insert "[no `from' set]\n"))
2264 (when (setq png (gnus-convert-face-to-png (pop faces)))
2266 (apply 'gnus-create-image png 'png t
2267 (cdr (assq 'png gnus-face-properties-alist))))
2269 (gnus-add-wash-type 'face)
2270 (gnus-add-image 'face image)
2271 (gnus-put-image image nil 'face))))))))))
2273 (defun article-display-x-face (&optional force)
2274 "Look for an X-Face header and display it if present."
2275 (interactive (list 'force))
2276 (let ((wash-face-p buffer-read-only)) ;; When type `W f'
2277 (gnus-with-article-headers
2278 ;; Delete the old process, if any.
2279 (when (process-status "article-x-face")
2280 (delete-process "article-x-face"))
2281 ;; See the comment in `article-display-face'.
2282 (if (and wash-face-p (memq 'xface gnus-article-wash-types))
2283 ;; We have already displayed X-Faces, so we remove them
2285 (gnus-delete-images 'xface)
2287 (let (x-faces from face)
2288 (save-current-buffer
2289 (when (and wash-face-p
2290 (gnus-buffer-live-p gnus-original-article-buffer)
2291 (not (re-search-forward "^X-Face:[\t ]*" nil t)))
2292 ;; If type `W f', use gnus-original-article-buffer,
2293 ;; otherwise use the current buffer because displaying
2294 ;; RFC822 parts calls this function too.
2295 (set-buffer gnus-original-article-buffer))
2297 (mail-narrow-to-head)
2298 (while (gnus-article-goto-header "X-Face")
2299 (push (mail-header-field-value) x-faces))
2300 (setq from (message-fetch-field "from"))))
2301 ;; Sending multiple EOFs to xv doesn't work, so we only do a
2302 ;; single external face.
2303 (when (stringp gnus-article-x-face-command)
2304 (setq x-faces (list (car x-faces))))
2306 gnus-article-x-face-command
2308 ;; Check whether this face is censored.
2309 (not gnus-article-x-face-too-ugly)
2311 (not (string-match gnus-article-x-face-too-ugly
2313 (while (setq face (pop x-faces))
2314 ;; We display the face.
2315 (cond ((stringp gnus-article-x-face-command)
2316 ;; The command is a string, so we interpret the command
2317 ;; as a, well, command, and fork it off.
2318 (let ((process-connection-type nil))
2319 (gnus-set-process-query-on-exit-flag
2321 "article-x-face" nil shell-file-name
2322 shell-command-switch gnus-article-x-face-command)
2326 (process-send-region "article-x-face"
2327 (point-min) (point-max)))
2328 (process-send-eof "article-x-face")))
2329 ((functionp gnus-article-x-face-command)
2330 ;; The command is a lisp function, so we call it.
2331 (funcall gnus-article-x-face-command face))
2333 (error "%s is not a function"
2334 gnus-article-x-face-command))))))))))
2336 (defun article-decode-mime-words ()
2337 "Decode all MIME-encoded words in the article."
2339 (gnus-with-article-buffer
2340 (let ((inhibit-point-motion-hooks t)
2341 (mail-parse-charset gnus-newsgroup-charset)
2342 (mail-parse-ignored-charsets
2343 (with-current-buffer gnus-summary-buffer
2344 gnus-newsgroup-ignored-charsets)))
2345 (mail-decode-encoded-word-region (point-min) (point-max)))))
2347 (defun article-decode-charset (&optional prompt)
2348 "Decode charset-encoded text in the article.
2349 If PROMPT (the prefix), prompt for a coding system to use."
2351 (let ((inhibit-point-motion-hooks t) (case-fold-search t)
2352 (inhibit-read-only t)
2353 (mail-parse-charset gnus-newsgroup-charset)
2354 (mail-parse-ignored-charsets
2355 (save-excursion (condition-case nil
2356 (set-buffer gnus-summary-buffer)
2358 gnus-newsgroup-ignored-charsets))
2359 ct cte ctl charset format)
2362 (article-narrow-to-head)
2363 (setq ct (message-fetch-field "Content-Type" t)
2364 cte (message-fetch-field "Content-Transfer-Encoding" t)
2365 ctl (and ct (mail-header-parse-content-type ct))
2368 (mm-read-coding-system "Charset to decode: "))
2370 (mail-content-type-get ctl 'charset)))
2371 format (and ctl (mail-content-type-get ctl 'format)))
2373 (setq cte (mail-header-strip cte)))
2374 (if (and ctl (not (string-match "/" (car ctl))))
2376 (goto-char (point-max)))
2379 (narrow-to-region (point) (point-max))
2380 (when (and (eq mail-parse-charset 'gnus-decoded)
2381 (eq (mm-body-7-or-8) '8bit))
2382 ;; The text code could have been decoded.
2383 (setq charset mail-parse-charset))
2384 (when (and (or (not ctl)
2385 (equal (car ctl) "text/plain"))
2386 (not format)) ;; article with format will decode later.
2388 charset (and cte (intern (downcase
2389 (gnus-strip-whitespace cte))))
2392 (defun article-decode-encoded-words ()
2393 "Remove encoded-word encoding from headers."
2394 (let ((inhibit-point-motion-hooks t)
2395 (mail-parse-charset gnus-newsgroup-charset)
2396 (mail-parse-ignored-charsets
2397 (save-excursion (condition-case nil
2398 (set-buffer gnus-summary-buffer)
2400 gnus-newsgroup-ignored-charsets))
2401 (inhibit-read-only t))
2403 (article-narrow-to-head)
2404 (funcall gnus-decode-header-function (point-min) (point-max)))))
2406 (defun article-decode-group-name ()
2407 "Decode group names in `Newsgroups:'."
2408 (let ((inhibit-point-motion-hooks t)
2409 (inhibit-read-only t)
2410 (method (gnus-find-method-for-group gnus-newsgroup-name)))
2411 (when (and (or gnus-group-name-charset-method-alist
2412 gnus-group-name-charset-group-alist)
2413 (gnus-buffer-live-p gnus-original-article-buffer))
2415 (article-narrow-to-head)
2416 (with-current-buffer gnus-original-article-buffer
2417 (goto-char (point-min)))
2418 (while (re-search-forward
2419 "^Newsgroups:\\(\\(.\\|\n[\t ]\\)*\\)\n[^\t ]" nil t)
2420 (replace-match (save-match-data
2421 (gnus-decode-newsgroups
2422 ;; XXX how to use data in article buffer?
2423 (with-current-buffer gnus-original-article-buffer
2425 "^Newsgroups:\\(\\(.\\|\n[\t ]\\)*\\)\n[^\t ]"
2428 gnus-newsgroup-name method))
2430 (goto-char (point-min))
2431 (with-current-buffer gnus-original-article-buffer
2432 (goto-char (point-min)))
2433 (while (re-search-forward
2434 "^Followup-To:\\(\\(.\\|\n[\t ]\\)*\\)\n[^\t ]" nil t)
2435 (replace-match (save-match-data
2436 (gnus-decode-newsgroups
2437 ;; XXX how to use data in article buffer?
2438 (with-current-buffer gnus-original-article-buffer
2440 "^Followup-To:\\(\\(.\\|\n[\t ]\\)*\\)\n[^\t ]"
2443 gnus-newsgroup-name method))
2446 (autoload 'idna-to-unicode "idna")
2448 (defun article-decode-idna-rhs ()
2449 "Decode IDNA strings in RHS in various headers in current buffer.
2450 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2451 Mail-Reply-To: and Mail-Followup-To:."
2454 (let ((inhibit-point-motion-hooks t)
2455 (inhibit-read-only t))
2456 (article-narrow-to-head)
2457 (goto-char (point-min))
2458 (while (re-search-forward "@[^ \t\n\r,>]*\\(xn--[-A-Za-z0-9.]*\\)[ \t\n\r,>]" nil t)
2460 (when (save-match-data
2461 (and (setq ace (match-string 1))
2463 (and (re-search-backward "^[^ \t]" nil t)
2464 (looking-at "From\\|To\\|Cc\\|Reply-To\\|Mail-Reply-To\\|Mail-Followup-To")))
2465 (setq unicode (idna-to-unicode ace))))
2466 (unless (string= ace unicode)
2467 (replace-match unicode nil nil nil 1)))))))))
2469 (defun article-de-quoted-unreadable (&optional force read-charset)
2470 "Translate a quoted-printable-encoded article.
2471 If FORCE, decode the article whether it is marked as quoted-printable
2473 If READ-CHARSET, ask for a coding system."
2474 (interactive (list 'force current-prefix-arg))
2476 (let ((inhibit-read-only t) type charset)
2477 (if (gnus-buffer-live-p gnus-original-article-buffer)
2478 (with-current-buffer gnus-original-article-buffer
2480 (gnus-fetch-field "content-transfer-encoding"))
2481 (let* ((ct (gnus-fetch-field "content-type"))
2482 (ctl (and ct (mail-header-parse-content-type ct))))
2483 (setq charset (and ctl
2484 (mail-content-type-get ctl 'charset)))
2485 (if (stringp charset)
2486 (setq charset (intern (downcase charset)))))))
2488 (setq charset (mm-read-coding-system "Charset: " charset)))
2490 (setq charset gnus-newsgroup-charset))
2492 (and type (let ((case-fold-search t))
2493 (string-match "quoted-printable" type))))
2495 (quoted-printable-decode-region
2496 (point) (point-max) (mm-charset-to-coding-system charset))))))
2498 (defun article-de-base64-unreadable (&optional force read-charset)
2499 "Translate a base64 article.
2500 If FORCE, decode the article whether it is marked as base64 not.
2501 If READ-CHARSET, ask for a coding system."
2502 (interactive (list 'force current-prefix-arg))
2504 (let ((inhibit-read-only t) type charset)
2505 (if (gnus-buffer-live-p gnus-original-article-buffer)
2506 (with-current-buffer gnus-original-article-buffer
2508 (gnus-fetch-field "content-transfer-encoding"))
2509 (let* ((ct (gnus-fetch-field "content-type"))
2510 (ctl (and ct (mail-header-parse-content-type ct))))
2511 (setq charset (and ctl
2512 (mail-content-type-get ctl 'charset)))
2513 (if (stringp charset)
2514 (setq charset (intern (downcase charset)))))))
2516 (setq charset (mm-read-coding-system "Charset: " charset)))
2518 (setq charset gnus-newsgroup-charset))
2520 (and type (let ((case-fold-search t))
2521 (string-match "base64" type))))
2524 (narrow-to-region (point) (point-max))
2525 (base64-decode-region (point-min) (point-max))
2526 (mm-decode-coding-region
2527 (point-min) (point-max) (mm-charset-to-coding-system charset)))))))
2532 (defun article-decode-HZ ()
2533 "Translate a HZ-encoded article."
2537 (let ((inhibit-read-only t))
2538 (rfc1843-decode-region (point-min) (point-max)))))
2540 (defun article-unsplit-urls ()
2541 "Remove the newlines that some other mailers insert into URLs."
2544 (let ((inhibit-read-only t))
2545 (goto-char (point-min))
2546 (while (re-search-forward
2547 "\\(\\(https?\\|ftp\\)://\\S-+\\) *\n\\(\\S-+\\)" nil t)
2548 (replace-match "\\1\\3" t)))
2549 (when (interactive-p)
2550 (gnus-treat-article nil))))
2553 (defun article-wash-html (&optional read-charset)
2554 "Format an HTML article.
2555 If READ-CHARSET, ask for a coding system. If it is a number, the
2556 charset defined in `gnus-summary-show-article-charset-alist' is used."
2559 (let ((inhibit-read-only t)
2562 (if (or (and (numberp read-charset)
2566 gnus-summary-show-article-charset-alist))))
2567 (setq charset (mm-read-coding-system "Charset: ")))
2568 (let ((gnus-summary-show-article-charset-alist
2569 (list (cons 1 charset))))
2570 (with-current-buffer gnus-summary-buffer
2571 (gnus-summary-show-article 1)))
2572 (error "No charset is given"))
2573 (when (gnus-buffer-live-p gnus-original-article-buffer)
2574 (with-current-buffer gnus-original-article-buffer
2575 (let* ((ct (gnus-fetch-field "content-type"))
2576 (ctl (and ct (mail-header-parse-content-type ct))))
2577 (setq charset (and ctl
2578 (mail-content-type-get ctl 'charset)))
2579 (when (stringp charset)
2580 (setq charset (intern (downcase charset)))))))
2582 (setq charset gnus-newsgroup-charset)))
2584 (save-window-excursion
2586 (narrow-to-region (point) (point-max))
2587 (let* ((func (or gnus-article-wash-function mm-text-html-renderer))
2588 (entry (assq func mm-text-html-washer-alist)))
2590 (setq func (cdr entry)))
2595 (apply (car func) (cdr func))))))))))
2597 (defun gnus-article-wash-html-with-w3 ()
2598 "Wash the current buffer with w3."
2600 (let ((w3-strict-width (window-width))
2601 (url-standalone-mode t)
2602 (url-gateway-unplugged t)
2603 (w3-honor-stylesheets nil))
2605 (w3-region (point-min) (point-max))
2608 (defun gnus-article-wash-html-with-w3m ()
2609 "Wash the current buffer with emacs-w3m."
2611 (let ((w3m-safe-url-regexp mm-w3m-safe-url-regexp)
2612 w3m-force-redisplay)
2613 (w3m-region (point-min) (point-max)))
2614 (when (and mm-inline-text-html-with-w3m-keymap
2615 (boundp 'w3m-minor-mode-map)
2617 (add-text-properties
2618 (point-min) (point-max)
2619 (list 'keymap w3m-minor-mode-map
2620 ;; Put the mark meaning this part was rendered by emacs-w3m.
2621 'mm-inline-text-html-with-w3m t))))
2623 (eval-when-compile (defvar charset)) ;; Bound by `article-wash-html'.
2625 (defun gnus-article-wash-html-with-w3m-standalone ()
2626 "Wash the current buffer with w3m."
2627 (if (mm-w3m-standalone-supports-m17n-p)
2629 (unless (mm-coding-system-p charset) ;; Bound by `article-wash-html'.
2631 (setq charset 'iso-8859-1))
2632 (let ((coding-system-for-write charset)
2633 (coding-system-for-read charset))
2634 (call-process-region
2635 (point-min) (point-max)
2636 "w3m" t t nil "-dump" "-T" "text/html"
2637 "-I" (symbol-name charset) "-O" (symbol-name charset))))
2638 (mm-inline-wash-with-stdin nil "w3m" "-dump" "-T" "text/html")))
2640 (defvar gnus-article-browse-html-temp-list nil
2641 "List of temporary files created by `gnus-article-browse-html-parts'.
2642 Internal variable.")
2644 (defcustom gnus-article-browse-delete-temp 'ask
2645 "What to do with temporary files from `gnus-article-browse-html-parts'.
2646 If nil, don't delete temporary files. If it is t, delete them on
2647 exit from the summary buffer. If it is the symbol `file', query
2648 on each file, if it is `ask' ask once when exiting from the
2650 :group 'gnus-article
2651 :version "23.0" ;; No Gnus
2652 :type '(choice (const :tag "Don't delete" nil)
2653 (const :tag "Don't ask" t)
2654 (const :tag "Ask" ask)
2655 (const :tag "Ask for each file" file)))
2657 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2659 (defun gnus-article-browse-delete-temp-files (&optional how)
2660 "Delete temp-files created by `gnus-article-browse-html-parts'."
2661 (when (and gnus-article-browse-html-temp-list
2663 (setq how gnus-article-browse-delete-temp)))
2664 (when (and (eq how 'ask)
2666 "Delete all %s temporary HTML file(s)? "
2667 (length gnus-article-browse-html-temp-list)))
2669 (dolist (file gnus-article-browse-html-temp-list)
2670 (when (and (file-exists-p file)
2672 ;; `how' is neither `nil', `ask' nor `t' (i.e. `file'):
2674 (format "Delete temporary HTML file `%s'? " file))))
2675 (delete-file file)))
2676 ;; Also remove file from the list when not deleted or if file doesn't
2678 (setq gnus-article-browse-html-temp-list nil))
2679 gnus-article-browse-html-temp-list)
2681 (defun gnus-article-browse-html-parts (list)
2682 "View all \"text/html\" parts from LIST.
2683 Recurse into multiparts."
2684 ;; Internal function used by `gnus-article-browse-html-article'.
2686 ;; Find and show the html-parts.
2687 (dolist (handle list)
2688 ;; If HTML, show it:
2689 (when (listp handle)
2690 (cond ((and (bufferp (car handle))
2691 (string-match "text/html" (car (mm-handle-type handle))))
2692 (let ((tmp-file (mm-make-temp-file
2693 ;; Do we need to care for 8.3 filenames?
2694 "mm-" nil ".html")))
2695 (mm-save-part-to-file handle tmp-file)
2696 (add-to-list 'gnus-article-browse-html-temp-list tmp-file)
2697 (add-hook 'gnus-summary-prepare-exit-hook
2698 'gnus-article-browse-delete-temp-files)
2699 (add-hook 'gnus-exit-gnus-hook
2701 (gnus-article-browse-delete-temp-files t)))
2702 (browse-url tmp-file)
2704 ;; If multipart, recurse
2705 ((and (stringp (car handle))
2706 (string-match "^multipart/" (car handle))
2709 (gnus-article-browse-html-parts handle))))))))
2712 ;; TODO: Key binding
2713 (defun gnus-article-browse-html-article ()
2714 "View \"text/html\" parts of the current article with a WWW browser."
2716 (save-window-excursion
2717 ;; Open raw article and select the buffer
2718 (gnus-summary-show-article t)
2719 (gnus-summary-select-article-buffer)
2720 (let ((parts (mm-dissect-buffer t t)))
2721 ;; If singlepart, enforce a list.
2722 (when (and (bufferp (car parts))
2723 (stringp (car (mm-handle-type parts))))
2724 (setq parts (list parts)))
2726 (unless (gnus-article-browse-html-parts parts)
2727 (gnus-error 3 "Mail doesn't contain a \"text/html\" part!"))
2728 (gnus-summary-show-article))))
2730 (defun article-hide-list-identifiers ()
2731 "Remove list identifies from the Subject header.
2732 The `gnus-list-identifiers' variable specifies what to do."
2734 (let ((inhibit-point-motion-hooks t)
2735 (regexp (if (consp gnus-list-identifiers)
2736 (mapconcat 'identity gnus-list-identifiers " *\\|")
2737 gnus-list-identifiers))
2738 (inhibit-read-only t))
2742 (article-narrow-to-head)
2743 (goto-char (point-min))
2744 (while (re-search-forward
2745 (concat "^Subject: +\\(R[Ee]: +\\)*\\(" regexp " *\\)")
2747 (delete-region (match-beginning 2) (match-end 0))
2748 (beginning-of-line))
2749 (when (re-search-forward
2750 "^Subject: +\\(\\(R[Ee]: +\\)+\\)R[Ee]: +" nil t)
2751 (delete-region (match-beginning 1) (match-end 1))))))))
2753 (defun article-hide-pem (&optional arg)
2754 "Toggle hiding of any PEM headers and signatures in the current article.
2755 If given a negative prefix, always show; if given a positive prefix,
2757 (interactive (gnus-article-hidden-arg))
2758 (unless (gnus-article-check-hidden-text 'pem arg)
2760 (let ((inhibit-read-only t) end)
2761 (goto-char (point-min))
2762 ;; Hide the horrendously ugly "header".
2763 (when (and (search-forward
2764 "\n-----BEGIN PRIVACY-ENHANCED MESSAGE-----\n"
2766 (setq end (1+ (match-beginning 0))))
2767 (gnus-add-wash-type 'pem)
2768 (gnus-article-hide-text-type
2770 (if (search-forward "\n\n" nil t)
2774 ;; Hide the trailer as well
2775 (when (search-forward "\n-----END PRIVACY-ENHANCED MESSAGE-----\n"
2777 (gnus-article-hide-text-type
2778 (match-beginning 0) (match-end 0) 'pem)))))))
2780 (defun article-strip-banner ()
2781 "Strip the banners specified by the `banner' group parameter and by
2782 `gnus-article-address-banner-alist'."
2786 (let ((inhibit-point-motion-hooks t))
2787 (when (gnus-parameter-banner gnus-newsgroup-name)
2788 (article-really-strip-banner
2789 (gnus-parameter-banner gnus-newsgroup-name)))
2790 (when gnus-article-address-banner-alist
2791 ;; Note that the From header is decoded here, so it is
2792 ;; required that the *-extract-address-components function
2793 ;; supports non-ASCII text.
2794 (let ((from (save-restriction
2796 (article-narrow-to-head)
2797 (mail-fetch-field "from"))))
2800 (cadr (funcall gnus-extract-address-components
2803 (dolist (pair gnus-article-address-banner-alist)
2804 (when (string-match (car pair) from)
2806 (article-really-strip-banner (cdr pair)))))))))))))
2808 (defun article-really-strip-banner (banner)
2809 "Strip the banner specified by the argument."
2812 (let ((inhibit-point-motion-hooks t)
2813 (gnus-signature-limit nil)
2814 (inhibit-read-only t))
2817 ((eq banner 'signature)
2818 (when (gnus-article-narrow-to-signature)
2821 (delete-region (point) (point-max))))
2823 (if (setq banner (cdr (assq banner gnus-article-banner-alist)))
2824 (while (re-search-forward banner nil t)
2825 (delete-region (match-beginning 0) (match-end 0)))))
2827 (while (re-search-forward banner nil t)
2828 (delete-region (match-beginning 0) (match-end 0)))))))))
2830 (defun article-babel ()
2831 "Translate article using an online translation service."
2834 (gnus-with-article-buffer
2835 (when (article-goto-body)
2836 (let* ((start (point))
2838 (orig (buffer-substring start end))
2839 (trans (babel-as-string orig)))
2841 (narrow-to-region start end)
2842 (delete-region start end)
2845 (defun article-hide-signature (&optional arg)
2846 "Hide the signature in the current article.
2847 If given a negative prefix, always show; if given a positive prefix,
2849 (interactive (gnus-article-hidden-arg))
2850 (unless (gnus-article-check-hidden-text 'signature arg)
2853 (let ((inhibit-read-only t))
2854 (when (gnus-article-narrow-to-signature)
2855 (gnus-article-hide-text-type
2856 (point-min) (point-max) 'signature))))))
2857 (gnus-set-mode-line 'article))
2859 (defun article-strip-headers-in-body ()
2860 "Strip offensive headers from bodies."
2864 (let ((case-fold-search t))
2865 (when (looking-at "x-no-archive:")
2866 (gnus-delete-line)))))
2868 (defun article-strip-leading-blank-lines ()
2869 "Remove all blank lines from the beginning of the article."
2872 (let ((inhibit-point-motion-hooks t)
2873 (inhibit-read-only t))
2874 (when (article-goto-body)
2875 (while (and (not (eobp))
2876 (looking-at "[ \t]*$"))
2877 (gnus-delete-line))))))
2879 (defun article-narrow-to-head ()
2880 "Narrow the buffer to the head of the message.
2881 Point is left at the beginning of the narrowed-to region."
2883 (goto-char (point-min))
2884 (if (search-forward "\n\n" nil 1)
2887 (goto-char (point-min)))
2889 (defun article-goto-body ()
2890 "Place point at the start of the body."
2891 (goto-char (point-min))
2893 ;; This variable is only bound when dealing with separate
2895 (article-goto-body-goes-to-point-min-p
2897 ((search-forward "\n\n" nil t)
2900 (goto-char (point-max))
2903 (defun article-strip-multiple-blank-lines ()
2904 "Replace consecutive blank lines with one empty line."
2907 (let ((inhibit-point-motion-hooks t)
2908 (inhibit-read-only t))
2909 ;; First make all blank lines empty.
2911 (while (re-search-forward "^[ \t]+$" nil t)
2912 (unless (gnus-annotation-in-region-p
2913 (match-beginning 0) (match-end 0))
2914 (replace-match "" nil t)))
2915 ;; Then replace multiple empty lines with a single empty line.
2917 (while (re-search-forward "\n\n\\(\n+\\)" nil t)
2918 (unless (gnus-annotation-in-region-p
2919 (match-beginning 0) (match-end 0))
2920 (delete-region (match-beginning 1) (match-end 1)))))))
2922 (defun article-strip-leading-space ()
2923 "Remove all white space from the beginning of the lines in the article."
2926 (let ((inhibit-point-motion-hooks t)
2927 (inhibit-read-only t))
2929 (while (re-search-forward "^[ \t]+" nil t)
2930 (replace-match "" t t)))))
2932 (defun article-strip-trailing-space ()
2933 "Remove all white space from the end of the lines in the article."
2936 (let ((inhibit-point-motion-hooks t)
2937 (inhibit-read-only t))
2939 (while (re-search-forward "[ \t]+$" nil t)
2940 (replace-match "" t t)))))
2942 (defun article-strip-blank-lines ()
2943 "Strip leading, trailing and multiple blank lines."
2945 (article-strip-leading-blank-lines)
2946 (article-remove-trailing-blank-lines)
2947 (article-strip-multiple-blank-lines))
2949 (defun article-strip-all-blank-lines ()
2950 "Strip all blank lines."
2953 (let ((inhibit-point-motion-hooks t)
2954 (inhibit-read-only t))
2956 (while (re-search-forward "^[ \t]*\n" nil t)
2957 (replace-match "" t t)))))
2959 (defun gnus-article-narrow-to-signature ()
2960 "Narrow to the signature; return t if a signature is found, else nil."
2961 (let ((inhibit-point-motion-hooks t))
2962 (when (gnus-article-search-signature)
2964 ;; Check whether we have some limits to what we consider
2965 ;; to be a signature.
2966 (let ((limits (if (listp gnus-signature-limit) gnus-signature-limit
2967 (list gnus-signature-limit)))
2969 (while (setq limit (pop limits))
2970 (if (or (and (integerp limit)
2971 (< (- (point-max) (point)) limit))
2973 (< (count-lines (point) (point-max)) limit))
2974 (and (functionp limit)
2976 (and (stringp limit)
2977 (not (re-search-forward limit nil t))))
2978 () ; This limit did not succeed.
2982 (narrow-to-region (point) (point-max))
2985 (defun gnus-article-search-signature ()
2986 "Search the current buffer for the signature separator.
2987 Put point at the beginning of the signature separator."
2988 (let ((cur (point)))
2989 (goto-char (point-max))
2990 (if (if (stringp gnus-signature-separator)
2991 (re-search-backward gnus-signature-separator nil t)
2992 (let ((seps gnus-signature-separator))
2994 (not (re-search-backward (car seps) nil t)))
3001 (defun gnus-article-hidden-arg ()
3002 "Return the current prefix arg as a number, or 0 if no prefix."
3003 (list (if current-prefix-arg
3004 (prefix-numeric-value current-prefix-arg)
3007 (defun gnus-article-check-hidden-text (type arg)
3008 "Return nil if hiding is necessary.
3009 Arg can be nil or a number. nil and positive means hide, negative
3010 means show, 0 means toggle."
3013 (let ((hide (gnus-article-hidden-text-p type)))
3019 (gnus-article-show-hidden-text type)
3022 (if (eq hide 'hidden)
3024 (gnus-article-show-hidden-text type)
3028 (defun gnus-article-hidden-text-p (type)
3029 "Say whether the current buffer contains hidden text of type TYPE."
3030 (let ((pos (text-property-any (point-min) (point-max) 'article-type type)))
3032 (not (get-text-property pos 'invisible))
3033 (not (get-text-property pos 'dummy-invisible)))
3035 (text-property-any (1+ pos) (point-max) 'article-type type)))
3040 (defun gnus-article-show-hidden-text (type &optional dummy)
3041 "Show all hidden text of type TYPE.
3042 Originally it is hide instead of DUMMY."
3043 (let ((inhibit-read-only t)
3044 (inhibit-point-motion-hooks t))
3045 (gnus-remove-text-properties-when
3047 (point-min) (point-max)
3048 (cons 'article-type (cons type
3049 gnus-hidden-properties)))
3050 (gnus-delete-wash-type type)))
3052 (defconst article-time-units
3053 `((year . ,(* 365.25 24 60 60))
3054 (week . ,(* 7 24 60 60))
3055 (day . ,(* 24 60 60))
3059 "Mapping from time units to seconds.")
3061 (defun gnus-article-forward-header ()
3062 "Move point to the start of the next header.
3063 If the current header is a continuation header, this can be several
3068 (if (looking-at "[ \t]+[^ \t]")
3072 (defun article-date-ut (&optional type highlight)
3073 "Convert DATE date to universal time in the current article.
3074 If TYPE is `local', convert to local time; if it is `lapsed', output
3075 how much time has lapsed since DATE. For `lapsed', the value of
3076 `gnus-article-date-lapsed-new-header' says whether the \"X-Sent:\" header
3077 should replace the \"Date:\" one, or should be added below it."
3078 (interactive (list 'ut t))
3079 (let* ((tdate-regexp "^Date:[ \t]\\|^X-Sent:[ \t]")
3080 (date-regexp (cond ((not gnus-article-date-lapsed-new-header)
3084 (article-lapsed-timer
3088 (case-fold-search t)
3089 (inhibit-read-only t)
3090 (inhibit-point-motion-hooks t)
3091 pos date bface eface)
3095 (goto-char (point-min))
3096 (while (or (setq date (get-text-property (setq pos (point))
3098 (when (setq pos (next-single-property-change
3099 (point) 'original-date))
3100 (setq date (get-text-property pos 'original-date))
3102 (narrow-to-region pos (or (text-property-any pos (point-max)
3105 (goto-char (point-min))
3106 (when (re-search-forward tdate-regexp nil t)
3107 (setq bface (get-text-property (point-at-bol) 'face)
3108 eface (get-text-property (1- (point-at-eol)) 'face)))
3109 (goto-char (point-min))
3111 ;; Delete any old Date headers.
3112 (while (re-search-forward date-regexp nil t)
3114 (delete-region (point-at-bol) (progn
3115 (gnus-article-forward-header)
3117 (delete-region (point-at-bol) (progn
3118 (gnus-article-forward-header)
3121 (setq pos (point))))
3122 (when (and (not pos)
3123 (re-search-forward tdate-regexp nil t))
3125 (gnus-goto-char pos)
3126 (insert (article-make-date-line date (or type 'ut)))
3132 (when (looking-at "\\([^:]+\\): *\\(.*\\)$")
3133 (put-text-property (match-beginning 1) (1+ (match-end 1))
3135 (put-text-property (match-beginning 2) (match-end 2)
3137 (put-text-property (point-min) (1- (point-max)) 'original-date date)
3138 (goto-char (point-max))
3141 (defun article-make-date-line (date type)
3142 "Return a DATE line of TYPE."
3143 (unless (memq type '(local ut original user iso8601 lapsed english))
3144 (error "Unknown conversion type: %s" type))
3146 (let ((time (date-to-time date)))
3148 ;; Convert to the local timezone.
3150 (concat "Date: " (message-make-date time)))
3151 ;; Convert to Universal Time.
3156 (let* ((e (parse-time-string date))
3157 (tm (apply 'encode-time e))
3159 (ls (- (cadr tm) (car (current-time-zone time)))))
3160 (cond ((< ls 0) (list (1- ms) (+ ls 65536)))
3161 ((> ls 65535) (list (1+ ms) (- ls 65536)))
3165 ;; Get the original date from the article.
3166 ((eq type 'original)
3167 (concat "Date: " (if (string-match "\n+$" date)
3168 (substring date 0 (match-beginning 0))
3170 ;; Let the user define the format.
3172 (let ((format (or (condition-case nil
3173 (with-current-buffer gnus-summary-buffer
3174 gnus-article-time-format)
3176 gnus-article-time-format)))
3177 (if (functionp format)
3178 (funcall format time)
3179 (concat "Date: " (format-time-string format time)))))
3182 (let ((tz (car (current-time-zone time))))
3185 (format-time-string "%Y%m%dT%H%M%S" time)
3186 (format "%s%02d%02d"
3187 (if (> tz 0) "+" "-") (/ (abs tz) 3600)
3188 (/ (% (abs tz) 3600) 60)))))
3189 ;; Do an X-Sent lapsed format.
3191 ;; If the date is seriously mangled, the timezone functions are
3192 ;; liable to bug out, so we ignore all errors.
3193 (let* ((now (current-time))
3194 (real-time (subtract-time now time))
3195 (real-sec (and real-time
3196 (+ (* (float (car real-time)) 65536)
3198 (sec (and real-time (abs real-sec)))
3208 ;; This is a bit convoluted, but basically we go
3209 ;; through the time units for years, weeks, etc,
3210 ;; and divide things to see whether that results
3211 ;; in positive answers.
3214 (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
3215 ;; The (remaining) seconds are too few to
3216 ;; be divided into this time unit.
3218 ;; It's big enough, so we output it.
3219 (setq sec (- sec (* num (cdr unit))))
3221 (concat (if prev ", " "") (int-to-string
3223 " " (symbol-name (car unit))
3224 (if (> num 1) "s" ""))
3226 article-time-units "")
3227 ;; If dates are odd, then it might appear like the
3228 ;; article was sent in the future.
3231 " in the future"))))))
3232 ;; Display the date in proper English
3234 (let ((dtime (decode-time time)))
3237 (number-to-string (nth 3 dtime))
3238 (let ((digit (% (nth 3 dtime) 10)))
3240 ((memq (nth 3 dtime) '(11 12 13)) "th")
3246 (nth (1- (nth 4 dtime)) gnus-english-month-names)
3248 (number-to-string (nth 5 dtime))
3250 (format "%02d" (nth 2 dtime))
3252 (format "%02d" (nth 1 dtime)))))))
3254 (format "Date: %s (from Gnus)" date))))
3256 (defun article-date-local (&optional highlight)
3257 "Convert the current article date to the local timezone."
3258 (interactive (list t))
3259 (article-date-ut 'local highlight))
3261 (defun article-date-english (&optional highlight)
3262 "Convert the current article date to something that is proper English."
3263 (interactive (list t))
3264 (article-date-ut 'english highlight))
3266 (defun article-date-original (&optional highlight)
3267 "Convert the current article date to what it was originally.
3268 This is only useful if you have used some other date conversion
3269 function and want to see what the date was before converting."
3270 (interactive (list t))
3271 (article-date-ut 'original highlight))
3273 (defun article-date-lapsed (&optional highlight)
3274 "Convert the current article date to time lapsed since it was sent."
3275 (interactive (list t))
3276 (article-date-ut 'lapsed highlight))
3278 (defun article-update-date-lapsed ()
3279 "Function to be run from a timer to update the lapsed time line."
3281 (let (deactivate-mark)
3286 (set-buffer (window-buffer w))
3287 (when (eq major-mode 'gnus-article-mode)
3288 (let ((mark (point-marker)))
3289 (goto-char (point-min))
3290 (when (re-search-forward "^X-Sent:" nil t)
3291 (article-date-lapsed t))
3292 (goto-char (marker-position mark))
3293 (move-marker mark nil))))
3296 (defun gnus-start-date-timer (&optional n)
3297 "Start a timer to update the X-Sent header in the article buffers.
3298 The numerical prefix says how frequently (in seconds) the function
3303 (gnus-stop-date-timer)
3304 (setq article-lapsed-timer
3305 (run-at-time 1 n 'article-update-date-lapsed)))
3307 (defun gnus-stop-date-timer ()
3308 "Stop the X-Sent timer."
3310 (when article-lapsed-timer
3311 (nnheader-cancel-timer article-lapsed-timer)
3312 (setq article-lapsed-timer nil)))
3314 (defun article-date-user (&optional highlight)
3315 "Convert the current article date to the user-defined format.
3316 This format is defined by the `gnus-article-time-format' variable."
3317 (interactive (list t))
3318 (article-date-ut 'user highlight))
3320 (defun article-date-iso8601 (&optional highlight)
3321 "Convert the current article date to ISO8601."
3322 (interactive (list t))
3323 (article-date-ut 'iso8601 highlight))
3325 (defmacro gnus-article-save-original-date (&rest forms)
3326 "Save the original date as a text property and evaluate FORMS."
3327 `(let* ((case-fold-search t)
3329 (goto-char (point-min))
3330 (when (and (re-search-forward "^date:[\t\n ]+" nil t)
3333 (date (when (and start
3334 (re-search-forward "[\t ]*\n\\(?:[^\t ]\\|\\'\\)"
3336 (buffer-substring-no-properties start
3337 (match-beginning 0)))))
3338 (goto-char (point-max))
3339 (skip-chars-backward "\n")
3340 (put-text-property (point-min) (point) 'original-date date)
3342 (goto-char (point-max))
3343 (skip-chars-backward "\n")
3344 (put-text-property (point-min) (point) 'original-date date)))
3346 ;; (defun article-show-all ()
3347 ;; "Show all hidden text in the article buffer."
3350 ;; (let ((inhibit-read-only t))
3351 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3353 (defun article-remove-leading-whitespace ()
3354 "Remove excessive whitespace from all headers."
3358 (let ((inhibit-read-only t))
3359 (article-narrow-to-head)
3360 (goto-char (point-min))
3361 (while (re-search-forward "^[^ :]+: \\([ \t]+\\)" nil t)
3362 (delete-region (match-beginning 1) (match-end 1)))))))
3364 (defun article-emphasize (&optional arg)
3365 "Emphasize text according to `gnus-emphasis-alist'."
3366 (interactive (gnus-article-hidden-arg))
3367 (unless (gnus-article-check-hidden-text 'emphasis arg)
3371 (with-current-buffer gnus-summary-buffer
3372 gnus-article-emphasis-alist)
3374 gnus-emphasis-alist))
3375 (inhibit-read-only t)
3376 (props (append '(article-type emphasis)
3377 gnus-hidden-properties))
3378 regexp elem beg invisible visible face)
3381 (while (setq elem (pop alist))
3383 (setq regexp (car elem)
3384 invisible (nth 1 elem)
3385 visible (nth 2 elem)
3387 (while (re-search-forward regexp nil t)
3388 (when (and (match-beginning visible) (match-beginning invisible))
3389 (gnus-article-hide-text
3390 (match-beginning invisible) (match-end invisible) props)
3391 (gnus-article-unhide-text-type
3392 (match-beginning visible) (match-end visible) 'emphasis)
3393 (gnus-put-overlay-excluding-newlines
3394 (match-beginning visible) (match-end visible) 'face face)
3395 (gnus-add-wash-type 'emphasis)
3396 (goto-char (match-end invisible)))))))))
3398 (defun gnus-article-setup-highlight-words (&optional highlight-words)
3399 "Setup newsgroup emphasis alist."
3400 (unless gnus-article-emphasis-alist
3401 (let ((name (and gnus-newsgroup-name
3402 (gnus-group-real-name gnus-newsgroup-name))))
3403 (make-local-variable 'gnus-article-emphasis-alist)
3404 (setq gnus-article-emphasis-alist
3406 (let ((alist gnus-group-highlight-words-alist) elem highlight)
3407 (while (setq elem (pop alist))
3408 (when (and name (string-match (car elem) name))
3410 highlight (copy-sequence (cdr elem)))))
3412 (copy-sequence highlight-words)
3413 (if gnus-newsgroup-name
3414 (copy-sequence (gnus-group-find-parameter
3415 gnus-newsgroup-name 'highlight-words t)))
3416 gnus-emphasis-alist)))))
3419 (defvar gnus-summary-article-menu)
3420 (defvar gnus-summary-post-menu))
3422 ;;; Saving functions.
3424 (defun gnus-article-save (save-buffer file &optional num)
3425 "Save the currently selected article."
3426 (unless gnus-save-all-headers
3427 ;; Remove headers according to `gnus-saved-headers'.
3428 (let ((gnus-visible-headers
3429 (or gnus-saved-headers gnus-visible-headers))
3430 (gnus-article-buffer save-buffer))
3432 (set-buffer save-buffer)
3433 (article-hide-headers 1 t))))
3434 (save-window-excursion
3435 (if (not gnus-default-article-saver)
3436 (error "No default saver is defined")
3437 ;; !!! Magic! The saving functions all save
3438 ;; `gnus-save-article-buffer' (or so they think), but we
3439 ;; bind that variable to our save-buffer.
3440 (set-buffer gnus-article-buffer)
3441 (let* ((gnus-save-article-buffer save-buffer)
3444 ((not gnus-prompt-before-saving) 'default)
3445 ((eq gnus-prompt-before-saving 'always) nil)
3447 (gnus-number-of-articles-to-be-saved
3448 (when (eq gnus-prompt-before-saving t)
3450 (set-buffer gnus-article-current-summary)
3451 (funcall gnus-default-article-saver filename)))))
3453 (defun gnus-read-save-file-name (prompt &optional filename
3454 function group headers variable)
3456 (funcall function group headers (symbol-value variable)))
3461 ((eq filename 'default)
3467 (let* ((split-name (gnus-get-split-value gnus-split-methods))
3470 (if (and gnus-number-of-articles-to-be-saved
3471 (> gnus-number-of-articles-to-be-saved 1))
3472 (format "these %d articles"
3473 gnus-number-of-articles-to-be-saved)
3476 ;; Let the split methods have their say.
3478 ;; No split name was found.
3481 (concat prompt " (default "
3482 (file-name-nondirectory default-name) "): ")
3483 (file-name-directory default-name)
3485 ;; A single group name is returned.
3486 ((stringp split-name)
3488 (funcall function split-name headers
3489 (symbol-value variable)))
3491 (concat prompt " (default "
3492 (file-name-nondirectory default-name) "): ")
3493 (file-name-directory default-name)
3495 ;; A single split name was found
3496 ((= 1 (length split-name))
3497 (let* ((name (expand-file-name
3499 gnus-article-save-directory))
3500 (dir (cond ((file-directory-p name)
3501 (file-name-as-directory name))
3502 ((file-exists-p name) name)
3503 (t gnus-article-save-directory))))
3505 (concat prompt " (default " name "): ")
3507 ;; A list of splits was found.
3509 (setq split-name (nreverse split-name))
3511 (let ((file-name-history
3512 (nconc split-name file-name-history)))
3516 (concat prompt " (`M-p' for defaults): ")
3517 gnus-article-save-directory
3519 gnus-article-save-directory)))
3520 (car (push result file-name-history)))))))
3521 ;; Create the directory.
3522 (gnus-make-directory (file-name-directory file))
3523 ;; If we have read a directory, we append the default file name.
3524 (when (file-directory-p file)
3525 (setq file (expand-file-name (file-name-nondirectory
3527 (file-name-as-directory file))))
3528 ;; Possibly translate some characters.
3529 (nnheader-translate-file-chars file))))))
3530 (gnus-make-directory (file-name-directory result))
3531 (set variable result)))
3533 (defun gnus-article-archive-name (group)
3534 "Return the first instance of an \"Archive-name\" in the current buffer."
3535 (let ((case-fold-search t))
3536 (when (re-search-forward "archive-name: *\\([^ \n\t]+\\)[ \t]*$" nil t)
3537 (nnheader-concat gnus-article-save-directory
3538 (match-string 1)))))
3540 (defun gnus-article-nndoc-name (group)
3541 "If GROUP is an nndoc group, return the name of the parent group."
3542 (when (eq (car (gnus-find-method-for-group group)) 'nndoc)
3543 (gnus-group-get-parameter group 'save-article-group)))
3545 (defun gnus-summary-save-in-rmail (&optional filename)
3546 "Append this article to Rmail file.
3547 Optional argument FILENAME specifies file name.
3548 Directory to save to is default to `gnus-article-save-directory'."
3549 (setq filename (gnus-read-save-file-name
3550 "Save %s in rmail file" filename
3551 gnus-rmail-save-name gnus-newsgroup-name
3552 gnus-current-headers 'gnus-newsgroup-last-rmail))
3553 (gnus-eval-in-buffer-window gnus-save-article-buffer
3557 (gnus-output-to-rmail filename))))
3560 (defun gnus-summary-save-in-mail (&optional filename)
3561 "Append this article to Unix mail file.
3562 Optional argument FILENAME specifies file name.
3563 Directory to save to is default to `gnus-article-save-directory'."
3564 (setq filename (gnus-read-save-file-name
3565 "Save %s in Unix mail file" filename
3566 gnus-mail-save-name gnus-newsgroup-name
3567 gnus-current-headers 'gnus-newsgroup-last-mail))
3568 (gnus-eval-in-buffer-window gnus-save-article-buffer
3572 (if (and (file-readable-p filename)
3573 (file-regular-p filename)
3574 (mail-file-babyl-p filename))
3575 (rmail-output-to-rmail-file filename t)
3576 (gnus-output-to-mail filename)))))
3579 (defun gnus-summary-save-in-file (&optional filename overwrite)
3580 "Append this article to file.
3581 Optional argument FILENAME specifies file name.
3582 Directory to save to is default to `gnus-article-save-directory'."
3583 (setq filename (gnus-read-save-file-name
3584 "Save %s in file" filename
3585 gnus-file-save-name gnus-newsgroup-name
3586 gnus-current-headers 'gnus-newsgroup-last-file))
3587 (gnus-eval-in-buffer-window gnus-save-article-buffer
3591 (when (and overwrite
3592 (file-exists-p filename))
3593 (delete-file filename))
3594 (gnus-output-to-file filename))))
3597 (defun gnus-summary-write-to-file (&optional filename)
3598 "Write this article to a file, overwriting it if the file exists.
3599 Optional argument FILENAME specifies file name.
3600 The directory to save in defaults to `gnus-article-save-directory'."
3601 (gnus-summary-save-in-file nil t))
3603 (defun gnus-summary-save-body-in-file (&optional filename)
3604 "Append this article body to a file.
3605 Optional argument FILENAME specifies file name.
3606 The directory to save in defaults to `gnus-article-save-directory'."
3607 (setq filename (gnus-read-save-file-name
3608 "Save %s body in file" filename
3609 gnus-file-save-name gnus-newsgroup-name
3610 gnus-current-headers 'gnus-newsgroup-last-file))
3611 (gnus-eval-in-buffer-window gnus-save-article-buffer
3615 (when (article-goto-body)
3616 (narrow-to-region (point) (point-max)))
3617 (gnus-output-to-file filename))))
3620 (defun gnus-summary-save-in-pipe (&optional command)
3621 "Pipe this article to subprocess."
3623 (cond ((and (eq command 'default)
3624 gnus-last-shell-command)
3625 gnus-last-shell-command)
3630 "Shell command on %s: "
3631 (if (and gnus-number-of-articles-to-be-saved
3632 (> gnus-number-of-articles-to-be-saved 1))
3633 (format "these %d articles"
3634 gnus-number-of-articles-to-be-saved)
3636 gnus-last-shell-command))))
3637 (when (string-equal command "")
3638 (if gnus-last-shell-command
3639 (setq command gnus-last-shell-command)
3640 (error "A command is required")))
3641 (gnus-eval-in-buffer-window gnus-article-buffer
3644 (shell-command-on-region (point-min) (point-max) command nil)))
3645 (setq gnus-last-shell-command command))
3647 (defun gnus-summary-pipe-to-muttprint (&optional command)
3648 "Pipe this article to muttprint."
3649 (setq command (read-string
3650 "Print using command: " gnus-summary-muttprint-program
3651 nil gnus-summary-muttprint-program))
3652 (gnus-summary-save-in-pipe command))
3654 ;;; Article file names when saving.
3656 (defun gnus-capitalize-newsgroup (newsgroup)
3657 "Capitalize NEWSGROUP name."
3658 (when (not (zerop (length newsgroup)))
3659 (concat (char-to-string (upcase (aref newsgroup 0)))
3660 (substring newsgroup 1))))
3662 (defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
3663 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3664 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
3665 Otherwise, it is like ~/News/news/group/num."
3668 (concat (if (gnus-use-long-file-name 'not-save)
3669 (gnus-capitalize-newsgroup newsgroup)
3670 (gnus-newsgroup-directory-form newsgroup))
3671 "/" (int-to-string (mail-header-number headers)))
3672 gnus-article-save-directory)))
3674 (string-equal (file-name-directory default)
3675 (file-name-directory last-file))
3676 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
3678 (or last-file default))))
3680 (defun gnus-numeric-save-name (newsgroup headers &optional last-file)
3681 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3682 If variable `gnus-use-long-file-name' is non-nil, it is
3683 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
3686 (concat (if (gnus-use-long-file-name 'not-save)
3688 (gnus-newsgroup-directory-form newsgroup))
3689 "/" (int-to-string (mail-header-number headers)))
3690 gnus-article-save-directory)))
3692 (string-equal (file-name-directory default)
3693 (file-name-directory last-file))
3694 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
3696 (or last-file default))))
3698 (defun gnus-plain-save-name (newsgroup headers &optional last-file)
3699 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3700 If variable `gnus-use-long-file-name' is non-nil, it is
3701 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
3704 (if (gnus-use-long-file-name 'not-save)
3707 (expand-file-name "news" (gnus-newsgroup-directory-form newsgroup))
3709 gnus-article-save-directory)))
3711 (defun gnus-sender-save-name (newsgroup headers &optional last-file)
3712 "Generate file name from sender."
3713 (let ((from (mail-header-from headers)))
3715 (if (and from (string-match "\\([^ <]+\\)@" from))
3716 (match-string 1 from)
3718 gnus-article-save-directory)))
3720 (defun article-verify-x-pgp-sig ()
3723 (if (gnus-buffer-live-p gnus-original-article-buffer)
3724 (let ((sig (with-current-buffer gnus-original-article-buffer
3725 (gnus-fetch-field "X-PGP-Sig")))
3729 (mml2015-clear-verify-function))
3731 (insert-buffer-substring gnus-original-article-buffer)
3732 (setq items (split-string sig))
3733 (message-narrow-to-head)
3734 (let ((inhibit-point-motion-hooks t)
3735 (case-fold-search t))
3736 ;; Don't verify multiple headers.
3737 (setq headers (mapconcat (lambda (header)
3739 (mail-fetch-field header)
3741 (split-string (nth 1 items) ",") "")))
3742 (delete-region (point-min) (point-max))
3743 (insert "-----BEGIN PGP SIGNED MESSAGE-----\n\n")
3744 (insert "X-Signed-Headers: " (nth 1 items) "\n")
3749 (if (looking-at "^-")
3752 (insert "\n-----BEGIN PGP SIGNATURE-----\n")
3753 (insert "Version: " (car items) "\n\n")
3754 (insert (mapconcat 'identity (cddr items) "\n"))
3755 (insert "\n-----END PGP SIGNATURE-----\n")
3756 (let ((mm-security-handle (list (format "multipart/signed"))))
3757 (mml2015-clean-buffer)
3758 (let ((coding-system-for-write (or gnus-newsgroup-charset
3760 (funcall (mml2015-clear-verify-function)))
3762 (or (mm-handle-multipart-ctl-parameter
3763 mm-security-handle 'gnus-details)
3764 (mm-handle-multipart-ctl-parameter
3765 mm-security-handle 'gnus-info)))))
3767 (let ((inhibit-read-only t) bface eface)
3769 (message-narrow-to-head)
3770 (goto-char (point-max))
3772 (setq bface (get-text-property (point-at-bol) 'face)
3773 eface (get-text-property (1- (point-at-eol)) 'face))
3774 (message-remove-header "X-Gnus-PGP-Verify")
3775 (if (re-search-forward "^X-PGP-Sig:" nil t)
3777 (goto-char (point-max)))
3778 (narrow-to-region (point) (point))
3779 (insert "X-Gnus-PGP-Verify: " info "\n")
3780 (goto-char (point-min))
3783 (if (not (looking-at "^[ \t]"))
3787 (goto-char (point-min))
3788 (when (looking-at "\\([^:]+\\): *")
3789 (put-text-property (match-beginning 1) (1+ (match-end 1))
3791 (put-text-property (match-end 0) (point-max)
3792 'face eface)))))))))
3794 (defun article-verify-cancel-lock ()
3795 "Verify Cancel-Lock header."
3797 (if (gnus-buffer-live-p gnus-original-article-buffer)
3798 (canlock-verify gnus-original-article-buffer)))
3805 (setq afunc (car func)
3808 gfunc (intern (format "gnus-%s" func))))
3810 (when (fboundp afunc)
3811 `(lambda (&optional interactive &rest args)
3812 ,(documentation afunc t)
3813 (interactive (list t))
3815 (set-buffer gnus-article-buffer)
3817 (call-interactively ',afunc)
3818 (apply ',afunc args))))))))
3819 '(article-hide-headers
3820 article-verify-x-pgp-sig
3821 article-verify-cancel-lock
3822 article-hide-boring-headers
3823 article-treat-overstrike
3824 article-treat-ansi-sequences
3825 article-fill-long-lines
3826 article-capitalize-sentences
3828 article-remove-leading-whitespace
3829 article-display-x-face
3830 article-display-face
3831 article-de-quoted-unreadable
3832 article-de-base64-unreadable
3835 article-unsplit-urls
3836 article-hide-list-identifiers
3837 article-strip-banner
3840 article-hide-signature
3841 article-strip-headers-in-body
3842 article-remove-trailing-blank-lines
3843 article-strip-leading-blank-lines
3844 article-strip-multiple-blank-lines
3845 article-strip-leading-space
3846 article-strip-trailing-space
3847 article-strip-blank-lines
3848 article-strip-all-blank-lines
3850 article-date-english
3851 article-date-iso8601
3852 article-date-original
3854 article-decode-mime-words
3855 article-decode-charset
3856 article-decode-encoded-words
3860 article-treat-dumbquotes
3861 article-normalize-headers
3862 ;; (article-show-all . gnus-article-show-all-headers)
3866 ;;; Gnus article mode
3869 (put 'gnus-article-mode 'mode-class 'special)
3871 (set-keymap-parent gnus-article-mode-map widget-keymap)
3873 (gnus-define-keys gnus-article-mode-map
3874 " " gnus-article-goto-next-page
3875 "\177" gnus-article-goto-prev-page
3876 [delete] gnus-article-goto-prev-page
3877 [backspace] gnus-article-goto-prev-page
3878 "\C-c^" gnus-article-refer-article
3879 "h" gnus-article-show-summary
3880 "s" gnus-article-show-summary
3881 "\C-c\C-m" gnus-article-mail
3882 "?" gnus-article-describe-briefly
3883 "e" gnus-summary-edit-article
3884 "<" beginning-of-buffer
3886 "\C-c\C-i" gnus-info-find-node
3888 "R" gnus-article-reply-with-original
3889 "F" gnus-article-followup-with-original
3890 "\C-hk" gnus-article-describe-key
3891 "\C-hc" gnus-article-describe-key-briefly
3893 "\C-d" gnus-article-read-summary-keys
3894 "\M-*" gnus-article-read-summary-keys
3895 "\M-#" gnus-article-read-summary-keys
3896 "\M-^" gnus-article-read-summary-keys
3897 "\M-g" gnus-article-read-summary-keys)
3899 (substitute-key-definition
3900 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
3902 (defun gnus-article-make-menu-bar ()
3903 (unless (boundp 'gnus-article-commands-menu)
3904 (gnus-summary-make-menu-bar))
3905 (gnus-turn-off-edit-menu 'article)
3906 (unless (boundp 'gnus-article-article-menu)
3908 gnus-article-article-menu gnus-article-mode-map ""
3910 ["Scroll forwards" gnus-article-goto-next-page t]
3911 ["Scroll backwards" gnus-article-goto-prev-page t]
3912 ["Show summary" gnus-article-show-summary t]
3913 ["Fetch Message-ID at point" gnus-article-refer-article t]
3914 ["Mail to address at point" gnus-article-mail t]
3915 ["Send a bug report" gnus-bug t]))
3918 gnus-article-treatment-menu gnus-article-mode-map ""
3919 ;; Fixme: this should use :active (and maybe :visible).
3921 ["Hide headers" gnus-article-hide-headers t]
3922 ["Hide signature" gnus-article-hide-signature t]
3923 ["Hide citation" gnus-article-hide-citation t]
3924 ["Treat overstrike" gnus-article-treat-overstrike t]
3925 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
3926 ["Remove carriage return" gnus-article-remove-cr t]
3927 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
3928 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
3929 ["Remove base64" gnus-article-de-base64-unreadable t]
3930 ["Treat html" gnus-article-wash-html t]
3931 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
3932 ["Decode HZ" gnus-article-decode-HZ t]))
3934 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
3936 ;; Note "Post" menu is defined in gnus-sum.el for consistency
3938 (gnus-run-hooks 'gnus-article-menu-hook)))
3940 (defun gnus-article-mode ()
3941 "Major mode for displaying an article.
3943 All normal editing commands are switched off.
3945 The following commands are available in addition to all summary mode
3947 \\<gnus-article-mode-map>
3948 \\[gnus-article-next-page]\t Scroll the article one page forwards
3949 \\[gnus-article-prev-page]\t Scroll the article one page backwards
3950 \\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
3951 \\[gnus-article-show-summary]\t Display the summary buffer
3952 \\[gnus-article-mail]\t Send a reply to the address near point
3953 \\[gnus-article-describe-briefly]\t Describe the current mode briefly
3954 \\[gnus-info-find-node]\t Go to the Gnus info node"
3956 (kill-all-local-variables)
3957 (gnus-simplify-mode-line)
3958 (setq mode-name "Article")
3959 (setq major-mode 'gnus-article-mode)
3960 (make-local-variable 'minor-mode-alist)
3961 (use-local-map gnus-article-mode-map)
3962 (when (gnus-visual-p 'article-menu 'menu)
3963 (gnus-article-make-menu-bar)
3964 (when gnus-summary-tool-bar-map
3965 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
3966 (gnus-update-format-specifications nil 'article-mode)
3967 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
3968 (set (make-local-variable 'gnus-page-broken) nil)
3969 (make-local-variable 'gnus-button-marker-list)
3970 (make-local-variable 'gnus-article-current-summary)
3971 (make-local-variable 'gnus-article-mime-handles)
3972 (make-local-variable 'gnus-article-decoded-p)
3973 (make-local-variable 'gnus-article-mime-handle-alist)
3974 (make-local-variable 'gnus-article-wash-types)
3975 (make-local-variable 'gnus-article-image-alist)
3976 (make-local-variable 'gnus-article-charset)
3977 (make-local-variable 'gnus-article-ignored-charsets)
3978 ;; Prevent recent Emacsen from displaying non-break space as "\ ".
3979 (set (make-local-variable 'nobreak-char-display) nil)
3980 (setq cursor-in-non-selected-windows nil)
3981 (gnus-set-default-directory)
3982 (buffer-disable-undo)
3983 (setq buffer-read-only t
3984 show-trailing-whitespace nil)
3985 (set-syntax-table gnus-article-mode-syntax-table)
3986 (mm-enable-multibyte)
3987 (gnus-run-mode-hooks 'gnus-article-mode-hook))
3989 (defun gnus-article-setup-buffer ()
3990 "Initialize the article buffer."
3991 (let* ((name (if gnus-single-article-buffer "*Article*"
3992 (concat "*Article " gnus-newsgroup-name "*")))
3994 (progn (string-match "\\*Article" name)
3995 (concat " *Original Article"
3996 (substring name (match-end 0))))))
3997 (setq gnus-article-buffer name)
3998 (setq gnus-original-article-buffer original)
3999 (setq gnus-article-mime-handle-alist nil)
4000 ;; This might be a variable local to the summary buffer.
4001 (unless gnus-single-article-buffer
4003 (set-buffer gnus-summary-buffer)
4004 (setq gnus-article-buffer name)
4005 (setq gnus-original-article-buffer original)
4006 (gnus-set-global-variables)))
4007 (gnus-article-setup-highlight-words)
4008 ;; Init original article buffer.
4010 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
4011 (mm-enable-multibyte)
4012 (setq major-mode 'gnus-original-article-mode)
4013 (make-local-variable 'gnus-original-article))
4014 (if (and (get-buffer name)
4015 (with-current-buffer name
4016 (if gnus-article-edit-mode
4017 (if (y-or-n-p "Article mode edit in progress; discard? ")
4019 (set-buffer-modified-p nil)
4020 (gnus-kill-buffer name)
4023 (error "Action aborted"))
4027 (set (make-local-variable 'gnus-article-edit-mode) nil)
4028 (when gnus-article-mime-handles
4029 (mm-destroy-parts gnus-article-mime-handles)
4030 (setq gnus-article-mime-handles nil))
4031 ;; Set it to nil in article-buffer!
4032 (setq gnus-article-mime-handle-alist nil)
4033 (buffer-disable-undo)
4034 (setq buffer-read-only t)
4035 ;; This list just keeps growing if we don't reset it.
4036 (setq gnus-button-marker-list nil)
4037 (unless (eq major-mode 'gnus-article-mode)
4038 (gnus-article-mode))
4041 (set-buffer (gnus-get-buffer-create name))
4043 (make-local-variable 'gnus-summary-buffer)
4044 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4045 (current-buffer)))))
4047 ;; Set article window start at LINE, where LINE is the number of lines
4048 ;; from the head of the article.
4049 (defun gnus-article-set-window-start (&optional line)
4051 (gnus-get-buffer-window gnus-article-buffer t)
4053 (set-buffer gnus-article-buffer)
4054 (goto-char (point-min))
4057 (gnus-message 6 "Moved to bookmark")
4058 (search-forward "\n\n" nil t)
4062 (defun gnus-article-prepare (article &optional all-headers header)
4063 "Prepare ARTICLE in article mode buffer.
4064 ARTICLE should either be an article number or a Message-ID.
4065 If ARTICLE is an id, HEADER should be the article headers.
4066 If ALL-HEADERS is non-nil, no headers are hidden."
4068 ;; Make sure we start in a summary buffer.
4069 (unless (eq major-mode 'gnus-summary-mode)
4070 (set-buffer gnus-summary-buffer))
4071 (setq gnus-summary-buffer (current-buffer))
4072 (let* ((gnus-article (if header (mail-header-number header) article))
4073 (summary-buffer (current-buffer))
4074 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4075 (group gnus-newsgroup-name)
4078 (gnus-article-setup-buffer)
4079 (set-buffer gnus-article-buffer)
4080 ;; Deactivate active regions.
4081 (when (and (boundp 'transient-mark-mode)
4082 transient-mark-mode)
4083 (setq mark-active nil))
4084 (if (not (setq result (let ((inhibit-read-only t))
4085 (gnus-request-article-this-buffer
4087 ;; There is no such article.
4089 (when (and (numberp article)
4090 (not (memq article gnus-newsgroup-sparse)))
4091 (setq gnus-article-current
4092 (cons gnus-newsgroup-name article))
4093 (set-buffer gnus-summary-buffer)
4094 (setq gnus-current-article article)
4095 (if (and (memq article gnus-newsgroup-undownloaded)
4096 (not (gnus-online (gnus-find-method-for-group
4097 gnus-newsgroup-name))))
4099 (gnus-summary-set-agent-mark article)
4100 (message "Message marked for downloading"))
4101 (gnus-summary-mark-article article gnus-canceled-mark)
4102 (unless (memq article gnus-newsgroup-sparse)
4103 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4104 (if (or (eq result 'pseudo)
4105 (eq result 'nneething))
4108 (set-buffer summary-buffer)
4109 (push article gnus-newsgroup-history)
4110 (setq gnus-last-article gnus-current-article
4111 gnus-current-article 0
4112 gnus-current-headers nil
4113 gnus-article-current nil)
4114 (if (eq result 'nneething)
4115 (gnus-configure-windows 'summary)
4116 (gnus-configure-windows 'article))
4117 (gnus-set-global-variables))
4118 (let ((gnus-article-mime-handle-alist-1
4119 gnus-article-mime-handle-alist))
4120 (gnus-set-mode-line 'article)))
4121 ;; The result from the `request' was an actual article -
4122 ;; or at least some text that is now displayed in the
4124 (when (and (numberp article)
4125 (not (eq article gnus-current-article)))
4126 ;; Seems like a new article has been selected.
4127 ;; `gnus-current-article' must be an article number.
4129 (set-buffer summary-buffer)
4130 (push article gnus-newsgroup-history)
4131 (setq gnus-last-article gnus-current-article
4132 gnus-current-article article
4133 gnus-current-headers
4134 (gnus-summary-article-header gnus-current-article)
4135 gnus-article-current
4136 (cons gnus-newsgroup-name gnus-current-article))
4137 (unless (vectorp gnus-current-headers)
4138 (setq gnus-current-headers nil))
4139 (gnus-summary-goto-subject gnus-current-article)
4140 (when (gnus-summary-show-thread)
4141 ;; If the summary buffer really was folded, the
4142 ;; previous goto may not actually have gone to
4143 ;; the right article, but the thread root instead.
4145 (gnus-summary-goto-subject gnus-current-article))
4146 (gnus-run-hooks 'gnus-mark-article-hook)
4147 (gnus-set-mode-line 'summary)
4148 (when (gnus-visual-p 'article-highlight 'highlight)
4149 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4150 ;; Set the global newsgroup variables here.
4151 (gnus-set-global-variables)
4152 (setq gnus-have-all-headers
4153 (or all-headers gnus-show-all-headers))))
4155 (gnus-configure-windows 'article))
4156 (when (or (numberp article)
4158 (gnus-article-prepare-display)
4160 (goto-char (point-min))
4161 (when gnus-break-pages
4162 (gnus-narrow-to-page)))
4163 (let ((gnus-article-mime-handle-alist-1
4164 gnus-article-mime-handle-alist))
4165 (gnus-set-mode-line 'article))
4169 (set-window-point (get-buffer-window (current-buffer)) (point))
4170 (gnus-configure-windows 'article)
4174 (defun gnus-article-prepare-display ()
4175 "Make the current buffer look like a nice article."
4176 ;; Hooks for getting information from the article.
4177 ;; This hook must be called before being narrowed.
4178 (let ((gnus-article-buffer (current-buffer))
4180 (inhibit-read-only t))
4181 (unless (eq major-mode 'gnus-article-mode)
4182 (gnus-article-mode))
4183 (setq buffer-read-only nil
4184 gnus-article-wash-types nil
4185 gnus-article-image-alist nil)
4186 (gnus-run-hooks 'gnus-tmp-internal-hook)
4187 (when gnus-display-mime-function
4188 (funcall gnus-display-mime-function))
4189 (gnus-run-hooks 'gnus-article-prepare-hook)))
4192 ;;; Gnus MIME viewing functions
4195 (defvar gnus-mime-button-line-format "%{%([%p. %d%T]%)%}%e\n"
4196 "Format of the MIME buttons.
4198 Valid specifiers include:
4200 %T MIME type, along with additional info
4201 %n The `name' parameter
4202 %d The description, if any
4203 %l The length of the encoded part
4204 %p The part identifier number
4205 %e Dots if the part isn't displayed
4207 General format specifiers can also be used. See Info node
4208 `(gnus)Formatting Variables'.")
4210 (defvar gnus-mime-button-line-format-alist
4211 '((?t gnus-tmp-type ?s)
4212 (?T gnus-tmp-type-long ?s)
4213 (?n gnus-tmp-name ?s)
4214 (?d gnus-tmp-description ?s)
4216 (?l gnus-tmp-length ?d)
4217 (?e gnus-tmp-dots ?s)))
4219 (defvar gnus-mime-button-commands
4220 '((gnus-article-press-button "\r" "Toggle Display")
4221 (gnus-mime-view-part "v" "View Interactively...")
4222 (gnus-mime-view-part-as-type "t" "View As Type...")
4223 (gnus-mime-view-part-as-charset "C" "View As charset...")
4224 (gnus-mime-save-part "o" "Save...")
4225 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4226 (gnus-mime-replace-part "r" "Replace part")
4227 (gnus-mime-delete-part "d" "Delete part")
4228 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4229 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4230 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4231 (gnus-mime-view-part-externally "e" "View Externally")
4232 (gnus-mime-print-part "p" "Print")
4233 (gnus-mime-pipe-part "|" "Pipe To Command...")
4234 (gnus-mime-action-on-part "." "Take action on the part...")))
4236 (defun gnus-article-mime-part-status ()
4237 (if gnus-article-mime-handle-alist-1
4238 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4240 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4243 (defvar gnus-mime-button-map
4244 (let ((map (make-sparse-keymap)))
4245 (define-key map gnus-mouse-2 'gnus-article-push-button)
4246 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4247 (dolist (c gnus-mime-button-commands)
4248 (define-key map (cadr c) (car c)))
4252 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4254 ,@(mapcar (lambda (c)
4255 (vector (caddr c) (car c) :enable t))
4256 gnus-mime-button-commands)))
4258 (defun gnus-mime-button-menu (event prefix)
4259 "Construct a context-sensitive menu of MIME commands."
4260 (interactive "e\nP")
4261 (save-window-excursion
4262 (let ((pos (event-start event)))
4263 (select-window (posn-window pos))
4264 (goto-char (posn-point pos))
4265 (gnus-article-check-buffer)
4266 (popup-menu gnus-mime-button-menu nil prefix))))
4268 (defun gnus-mime-view-all-parts (&optional handles)
4269 "View all the MIME parts."
4271 (with-current-buffer gnus-article-buffer
4272 (let ((handles (or handles gnus-article-mime-handles))
4273 (mail-parse-charset gnus-newsgroup-charset)
4274 (mail-parse-ignored-charsets
4275 (with-current-buffer gnus-summary-buffer
4276 gnus-newsgroup-ignored-charsets)))
4278 (mm-remove-parts handles)
4279 (goto-char (point-min))
4280 (or (search-forward "\n\n") (goto-char (point-max)))
4281 (let ((inhibit-read-only t))
4282 (delete-region (point) (point-max))
4283 (mm-display-parts handles))))))
4285 (defun gnus-article-jump-to-part (n)
4286 "Jump to MIME part N."
4288 (pop-to-buffer gnus-article-buffer)
4289 ;; FIXME: why is it necessary?
4291 (let ((parts (length gnus-article-mime-handle-alist)))
4294 (read-string ;; Emacs 21 doesn't have `read-number'.
4295 (format "Jump to part (2..%s): " parts)))))
4296 (unless (and (integerp n) (<= n parts) (>= n 1))
4299 (gnus-message 7 "Invalid part `%s', using %s instead."
4302 (gnus-message 9 "Jumping to part %s." n)
4303 (cond ((>= gnus-auto-select-part 1)
4304 (while (and (<= n parts)
4305 (not (gnus-article-goto-part n)))
4307 ((< gnus-auto-select-part 0)
4308 (while (and (>= n 1)
4309 (not (gnus-article-goto-part n)))
4312 (gnus-article-goto-part n)))))
4315 (defsubst gnus-article-edit-part (handles &optional current-id)
4316 "Edit an article in order to delete a mime part.
4317 This function is exclusively used by `gnus-mime-save-part-and-strip'
4318 and `gnus-mime-delete-part', and not provided at run-time normally."
4319 (gnus-article-edit-article
4321 (buffer-disable-undo)
4323 (let ((mail-parse-charset (or gnus-article-charset
4324 ',gnus-newsgroup-charset))
4325 (mail-parse-ignored-charsets
4326 (or gnus-article-ignored-charsets
4327 ',gnus-newsgroup-ignored-charsets))
4328 (mbl mml-buffer-list))
4329 (setq mml-buffer-list nil)
4330 (insert-buffer-substring gnus-original-article-buffer)
4331 (mime-to-mml ',handles)
4332 (setq gnus-article-mime-handles nil)
4333 (let ((mbl1 mml-buffer-list))
4334 (setq mml-buffer-list mbl)
4335 (set (make-local-variable 'mml-buffer-list) mbl1))
4336 (gnus-make-local-hook 'kill-buffer-hook)
4337 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
4338 `(lambda (no-highlight)
4339 (let ((mail-parse-charset (or gnus-article-charset
4340 ',gnus-newsgroup-charset))
4341 (message-options message-options)
4342 (message-options-set-recipient)
4343 (mail-parse-ignored-charsets
4344 (or gnus-article-ignored-charsets
4345 ',gnus-newsgroup-ignored-charsets)))
4347 (mml-destroy-buffers)
4348 (remove-hook 'kill-buffer-hook
4349 'mml-destroy-buffers t)
4350 (kill-local-variable 'mml-buffer-list))
4351 (gnus-summary-edit-article-done
4352 ,(or (mail-header-references gnus-current-headers) "")
4353 ,(gnus-group-read-only-p)
4354 ,gnus-summary-buffer no-highlight))
4356 (gnus-article-edit-done)
4357 (gnus-summary-expand-window)
4358 (gnus-summary-show-article)
4359 (when (and current-id (integerp gnus-auto-select-part))
4360 (gnus-article-jump-to-part
4361 (+ current-id gnus-auto-select-part)))))
4363 (defun gnus-mime-replace-part (file)
4364 "Replace MIME part under point with an external body."
4365 ;; Useful if file has already been saved to disk
4369 (read-file-name "Replace MIME part with file: "
4370 (or mm-default-directory default-directory)
4372 (gnus-mime-save-part-and-strip file))
4374 (defun gnus-mime-save-part-and-strip (&optional file)
4375 "Save the MIME part under point then replace it with an external body.
4376 If FILE is given, use it for the external part."
4378 (gnus-article-check-buffer)
4379 (when (gnus-group-read-only-p)
4380 (error "The current group does not support deleting of parts"))
4381 (when (mm-complicated-handles gnus-article-mime-handles)
4383 The current article has a complicated MIME structure, giving up..."))
4384 (let* ((data (get-text-property (point) 'gnus-data))
4385 (id (get-text-property (point) 'gnus-part))
4387 (handles gnus-article-mime-handles))
4390 (and data (mm-save-part data "Delete MIME part and save to: "))))
4392 (with-current-buffer (mm-handle-buffer data)
4394 (insert "Content-Type: " (mm-handle-media-type data))
4395 (mml-insert-parameter-string (cdr (mm-handle-type data))
4397 ;; Add a filename for the sake of saving the part again.
4398 (mml-insert-parameter
4399 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
4401 (insert "Content-ID: " (message-make-message-id) "\n")
4402 (insert "Content-Transfer-Encoding: binary\n")
4405 (cdr (mm-make-handle nil
4406 `("message/external-body"
4407 (access-type . "LOCAL-FILE")
4409 ;; (set-buffer gnus-summary-buffer)
4410 (gnus-article-edit-part handles id))))
4412 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
4413 ;; parts...>') but with stripping would be nice.
4415 (defun gnus-mime-delete-part ()
4416 "Delete the MIME part under point.
4417 Replace it with some information about the removed part."
4419 (gnus-article-check-buffer)
4420 (when (gnus-group-read-only-p)
4421 (error "The current group does not support deleting of parts"))
4422 (when (mm-complicated-handles gnus-article-mime-handles)
4424 The current article has a complicated MIME structure, giving up..."))
4425 (when (or gnus-expert-user
4426 (gnus-yes-or-no-p "\
4427 Deleting parts may malfunction or destroy the article; continue? "))
4428 (let* ((data (get-text-property (point) 'gnus-data))
4429 (id (get-text-property (point) 'gnus-part))
4430 (handles gnus-article-mime-handles)
4434 (mail-decode-encoded-word-string (or (mm-handle-description data)
4437 (or (mail-content-type-get (mm-handle-disposition data) 'filename)
4439 (type (mm-handle-media-type data)))
4441 (error "No MIME part under point"))
4442 (with-current-buffer (mm-handle-buffer data)
4443 (let ((bsize (format "%s" (buffer-size))))
4448 "| The following attachment has been deleted:\n"
4450 "| Type: " type "\n"
4451 "| Filename: " filename "\n"
4452 "| Size (encoded): " bsize " Byte\n"
4453 "| Description: " description "\n"
4456 (cdr (mm-make-handle
4457 nil `("text/plain") nil nil
4459 (format "Deleted attachment (%s bytes)" bsize))))))
4460 ;; (set-buffer gnus-summary-buffer)
4461 (gnus-article-edit-part handles id))))
4463 (defun gnus-mime-save-part ()
4464 "Save the MIME part under point."
4466 (gnus-article-check-buffer)
4467 (let ((data (get-text-property (point) 'gnus-data)))
4469 (mm-save-part data))))
4471 (defun gnus-mime-pipe-part ()
4472 "Pipe the MIME part under point to a process."
4474 (gnus-article-check-buffer)
4475 (let ((data (get-text-property (point) 'gnus-data)))
4477 (mm-pipe-part data))))
4479 (defun gnus-mime-view-part ()
4480 "Interactively choose a viewing method for the MIME part under point."
4482 (gnus-article-check-buffer)
4483 (let ((data (get-text-property (point) 'gnus-data)))
4485 (setq gnus-article-mime-handles
4487 gnus-article-mime-handles (setq data (copy-sequence data))))
4488 (mm-interactively-view-part data))))
4490 (defun gnus-mime-view-part-as-type-internal ()
4491 (gnus-article-check-buffer)
4492 (let* ((handle (get-text-property (point) 'gnus-data))
4494 ;; Content-Type: foo/bar; name=...
4495 (mail-content-type-get (mm-handle-type handle) 'name)
4496 ;; Content-Disposition: attachment; filename=...
4497 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
4498 (def-type (and name (mm-default-file-encoding name))))
4499 (and def-type (cons def-type 0))))
4501 (defun gnus-mime-view-part-as-type (&optional mime-type)
4502 "Choose a MIME media type, and view the part as such."
4506 (let ((default (gnus-mime-view-part-as-type-internal)))
4508 (format "View as MIME type (default %s): "
4510 (mapcar #'list (mailcap-mime-types))
4513 (gnus-article-check-buffer)
4514 (let ((handle (get-text-property (point) 'gnus-data)))
4516 (when (equal (mm-handle-media-type handle) "message/external-body")
4517 (unless (mm-handle-cache handle)
4518 (mm-extern-cache-contents handle))
4519 (setq handle (mm-handle-cache handle)))
4521 (mm-make-handle (mm-handle-buffer handle)
4522 (cons mime-type (cdr (mm-handle-type handle)))
4523 (mm-handle-encoding handle)
4524 (mm-handle-undisplayer handle)
4525 (mm-handle-disposition handle)
4526 (mm-handle-description handle)
4528 (mm-handle-id handle)))
4529 (setq gnus-article-mime-handles
4530 (mm-merge-handles gnus-article-mime-handles handle))
4531 (gnus-mm-display-part handle))))
4533 (defun gnus-mime-copy-part (&optional handle arg)
4534 "Put the MIME part under point into a new buffer.
4535 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
4537 (interactive (list nil current-prefix-arg))
4538 (gnus-article-check-buffer)
4540 (setq handle (get-text-property (point) 'gnus-data)))
4542 (let ((filename (or (mail-content-type-get (mm-handle-type handle)
4544 (mail-content-type-get (mm-handle-disposition handle)
4546 contents dont-decode charset coding-system)
4547 (mm-with-unibyte-buffer
4548 (mm-insert-part handle)
4549 (setq contents (or (condition-case nil
4550 (mm-decompress-buffer filename nil 'sig)
4552 (setq dont-decode t)
4555 (setq filename (cond (filename (file-name-nondirectory filename))
4556 (dont-decode "*raw data*")
4561 (unless (setq charset (mail-content-type-get
4562 (mm-handle-type handle) 'charset))
4563 (unless (setq coding-system (mm-with-unibyte-buffer
4565 (mm-find-buffer-file-coding-system)))
4566 (setq charset gnus-newsgroup-charset))))
4568 (setq charset (or (cdr (assq arg
4569 gnus-summary-show-article-charset-alist))
4570 (mm-read-coding-system "Charset: ")))))
4571 (switch-to-buffer (generate-new-buffer filename))
4572 (if (or coding-system
4574 (setq coding-system (mm-charset-to-coding-system charset))
4575 (not (eq charset 'ascii))))
4577 (mm-enable-multibyte)
4578 (insert (mm-decode-coding-string contents coding-system))
4579 (setq buffer-file-coding-system
4580 (if (boundp 'last-coding-system-used)
4581 (symbol-value 'last-coding-system-used)
4583 (mm-disable-multibyte)
4585 (setq buffer-file-coding-system mm-binary-coding-system))
4586 ;; We do it this way to make `normal-mode' set the appropriate mode.
4589 (setq buffer-file-name (expand-file-name filename))
4591 (setq buffer-file-name nil))
4592 (goto-char (point-min)))))
4594 (defun gnus-mime-print-part (&optional handle filename)
4595 "Print the MIME part under point."
4596 (interactive (list nil (ps-print-preprint current-prefix-arg)))
4597 (gnus-article-check-buffer)
4598 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4599 (contents (and handle (mm-get-part handle)))
4600 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
4601 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
4606 (mm-save-part-to-file handle file)
4607 (call-process shell-file-name nil
4608 (generate-new-buffer " *mm*")
4610 shell-command-switch
4612 printer file (mm-handle-type handle))))
4616 (gnus-print-buffer))
4617 (ps-despool filename)))))
4619 (defun gnus-mime-inline-part (&optional handle arg)
4620 "Insert the MIME part under point into the current buffer.
4621 Compressed files like .gz and .bz2 are decompressed."
4622 (interactive (list nil current-prefix-arg))
4623 (gnus-article-check-buffer)
4625 (setq handle (get-text-property (point) 'gnus-data)))
4628 (inhibit-read-only t)
4629 contents charset coding-system)
4630 (if (and (not arg) (mm-handle-undisplayer handle))
4631 (mm-remove-part handle)
4632 (mm-with-unibyte-buffer
4633 (mm-insert-part handle)
4635 (or (mm-decompress-buffer
4636 (or (mail-content-type-get (mm-handle-type handle)
4638 (mail-content-type-get (mm-handle-disposition handle)
4644 (unless (setq charset (mail-content-type-get
4645 (mm-handle-type handle) 'charset))
4646 (unless (setq coding-system
4647 (mm-with-unibyte-buffer
4649 (mm-find-buffer-file-coding-system)))
4650 (setq charset gnus-newsgroup-charset))))
4652 (if (mm-handle-undisplayer handle)
4653 (mm-remove-part handle))
4656 gnus-summary-show-article-charset-alist))
4657 (mm-read-coding-system "Charset: "))))
4659 (if (mm-handle-undisplayer handle)
4660 (mm-remove-part handle))))
4664 (if (or coding-system
4667 (mm-charset-to-coding-system charset))
4668 (not (eq coding-system 'ascii))))
4669 (mm-decode-coding-string contents coding-system)
4670 (mm-string-to-multibyte contents)))
4673 (defun gnus-mime-view-part-as-charset (&optional handle arg)
4674 "Insert the MIME part under point into the current buffer using the
4676 (interactive (list nil current-prefix-arg))
4677 (gnus-article-check-buffer)
4678 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
4679 (fun (get-text-property (point) 'gnus-callback))
4680 (gnus-newsgroup-ignored-charsets 'gnus-all)
4681 gnus-newsgroup-charset type charset)
4683 (if (mm-handle-undisplayer handle)
4684 (mm-remove-part handle))
4686 (setq gnus-newsgroup-charset
4687 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
4688 (mm-read-coding-system "Charset: ")))
4689 ;; Strip the charset parameter from `handle'.
4690 (setq type (mm-handle-type
4691 (if (equal (mm-handle-media-type handle)
4692 "message/external-body")
4694 (unless (mm-handle-cache handle)
4695 (mm-extern-cache-contents handle))
4696 (mm-handle-cache handle))
4698 charset (assq 'charset (cdr type)))
4700 (funcall fun handle)))))
4702 (defun gnus-mime-view-part-externally (&optional handle)
4703 "View the MIME part under point with an external viewer."
4705 (gnus-article-check-buffer)
4706 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4707 (mm-user-display-methods nil)
4708 (mm-inlined-types nil)
4709 (mail-parse-charset gnus-newsgroup-charset)
4710 (mail-parse-ignored-charsets
4711 (with-current-buffer gnus-summary-buffer
4712 gnus-newsgroup-ignored-charsets)))
4714 (if (mm-handle-undisplayer handle)
4715 (mm-remove-part handle)
4716 (mm-display-part handle)))))
4718 (defun gnus-mime-view-part-internally (&optional handle)
4719 "View the MIME part under point with an internal viewer.
4720 If no internal viewer is available, use an external viewer."
4722 (gnus-article-check-buffer)
4723 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4724 (mm-inlined-types '(".*"))
4725 (mm-inline-large-images t)
4726 (mail-parse-charset gnus-newsgroup-charset)
4727 (mail-parse-ignored-charsets
4728 (with-current-buffer gnus-summary-buffer
4729 gnus-newsgroup-ignored-charsets))
4730 (inhibit-read-only t))
4732 (if (mm-handle-undisplayer handle)
4733 (mm-remove-part handle)
4734 (mm-display-part handle)))))
4736 (defun gnus-mime-action-on-part (&optional action)
4737 "Do something with the MIME attachment at \(point\)."
4739 (list (completing-read "Action: " gnus-mime-action-alist nil t)))
4740 (gnus-article-check-buffer)
4741 (let ((action-pair (assoc action gnus-mime-action-alist)))
4743 (funcall (cdr action-pair)))))
4745 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
4746 "Call FUNCTION on MIME part N.
4747 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as it's only argument.
4748 If INTERACTIVE, call FUNCTION interactivly."
4750 ;; Check whether the article is displayed.
4751 (unless (and (gnus-buffer-live-p gnus-article-buffer)
4752 (setq window (get-buffer-window gnus-article-buffer t))
4753 (frame-visible-p (setq frame (window-frame window))))
4754 (error "No article is displayed"))
4755 (with-current-buffer gnus-article-buffer
4756 ;; Check whether the article displays the right contents.
4757 (unless (with-current-buffer gnus-summary-buffer
4758 (eq gnus-current-article (gnus-summary-article-number)))
4759 (error "You should select the right article first"))
4760 ;; Check whether the specified part exists.
4761 (when (> n (length gnus-article-mime-handle-alist))
4762 (error "No such part")))
4765 ;; To select the window is needed so that the cursor
4766 ;; might be visible on the MIME button.
4767 (select-window (prog1
4769 (setq window (selected-window))
4770 ;; Article may be displayed in the other frame.
4771 (gnus-select-frame-set-input-focus
4774 (setq frame (selected-frame))))))
4775 (when (gnus-article-goto-part n)
4776 ;; We point the cursor and the arrow at the MIME button
4777 ;; when the `function' prompt the user for something.
4778 (let ((cursor-in-non-selected-windows t)
4779 (overlay-arrow-string "=>")
4780 (overlay-arrow-position (point-marker)))
4783 ((and no-handle interactive)
4784 (call-interactively function))
4790 (cdr (assq n gnus-article-mime-handle-alist))))
4793 (cdr (assq n gnus-article-mime-handle-alist)))))
4794 (set-marker overlay-arrow-position nil)
4795 (unless gnus-auto-select-part
4796 (gnus-select-frame-set-input-focus frame)
4797 (select-window window))))
4799 (if gnus-inhibit-mime-unbuttonizing
4800 ;; This is the default though the program shouldn't reach here.
4801 (error "No such part")
4802 ;; The part which doesn't have the MIME button is selected.
4803 ;; So, we display all the buttons and redo it.
4804 (let ((gnus-inhibit-mime-unbuttonizing t))
4805 (gnus-summary-show-article)
4806 (gnus-article-part-wrapper n function no-handle))))))
4808 (defun gnus-article-pipe-part (n)
4809 "Pipe MIME part N, which is the numerical prefix."
4811 (gnus-article-part-wrapper n 'mm-pipe-part))
4813 (defun gnus-article-save-part (n)
4814 "Save MIME part N, which is the numerical prefix."
4816 (gnus-article-part-wrapper n 'mm-save-part))
4818 (defun gnus-article-interactively-view-part (n)
4819 "View MIME part N interactively, which is the numerical prefix."
4821 (gnus-article-part-wrapper n 'mm-interactively-view-part))
4823 (defun gnus-article-copy-part (n)
4824 "Copy MIME part N, which is the numerical prefix."
4826 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
4828 (defun gnus-article-view-part-as-charset (n)
4829 "View MIME part N using a specified charset.
4830 N is the numerical prefix."
4832 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
4834 (defun gnus-article-view-part-externally (n)
4835 "View MIME part N externally, which is the numerical prefix."
4837 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
4839 (defun gnus-article-inline-part (n)
4840 "Inline MIME part N, which is the numerical prefix."
4842 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
4844 (defun gnus-article-save-part-and-strip (n)
4845 "Save MIME part N and replace it with an external body.
4846 N is the numerical prefix."
4848 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
4850 (defun gnus-article-replace-part (n)
4851 "Replace MIME part N with an external body.
4852 N is the numerical prefix."
4854 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
4856 (defun gnus-article-delete-part (n)
4857 "Delete MIME part N and add some information about the removed part.
4858 N is the numerical prefix."
4860 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
4862 (defun gnus-article-mime-match-handle-first (condition)
4865 (dolist (ihandle gnus-article-mime-handle-alist)
4867 ((functionp condition)
4868 (funcall condition (cdr ihandle)))
4869 ((eq condition 'undisplayed)
4870 (not (or (mm-handle-undisplayer (cdr ihandle))
4871 (equal (mm-handle-media-type (cdr ihandle))
4872 "multipart/alternative"))))
4873 ((eq condition 'undisplayed-alternative)
4874 (not (mm-handle-undisplayer (cdr ihandle))))
4876 (gnus-article-goto-part (car ihandle))
4877 (or (not n) (< (car ihandle) n)))
4878 (setq n (car ihandle))))
4882 (defun gnus-article-view-part (&optional n)
4883 "View MIME part N, which is the numerical prefix."
4885 (with-current-buffer gnus-article-buffer
4886 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
4887 gnus-article-mime-match-handle-function)))
4888 (when (> n (length gnus-article-mime-handle-alist))
4889 (error "No such part"))
4890 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
4891 (when (gnus-article-goto-part n)
4892 (if (equal (car handle) "multipart/alternative")
4893 (gnus-article-press-button)
4894 (when (eq (gnus-mm-display-part handle) 'internal)
4895 (gnus-set-window-start)))))))
4897 (defsubst gnus-article-mime-total-parts ()
4898 (if (bufferp (car gnus-article-mime-handles))
4900 (1- (length gnus-article-mime-handles))))
4902 (defun gnus-mm-display-part (handle)
4903 "Display HANDLE and fix MIME button."
4904 (let ((id (get-text-property (point) 'gnus-part))
4906 (inhibit-read-only t))
4909 (let ((window (selected-window))
4910 (mail-parse-charset gnus-newsgroup-charset)
4911 (mail-parse-ignored-charsets
4912 (if (gnus-buffer-live-p gnus-summary-buffer)
4913 (with-current-buffer gnus-summary-buffer
4914 gnus-newsgroup-ignored-charsets)
4918 (let ((win (gnus-get-buffer-window (current-buffer) t))
4921 (select-window win))
4924 (if (mm-handle-displayed-p handle)
4925 ;; This will remove the part.
4926 (mm-display-part handle)
4928 (narrow-to-region (point)
4929 (if (eobp) (point) (1+ (point))))
4930 (mm-display-part handle)
4931 ;; We narrow to the part itself and
4932 ;; then call the treatment functions.
4933 (goto-char (point-min))
4935 (narrow-to-region (point) (point-max))
4938 (gnus-article-mime-total-parts)
4939 (mm-handle-media-type handle)))))
4940 (if (window-live-p window)
4941 (select-window window)))))
4944 (gnus-insert-mime-button
4945 handle id (list (mm-handle-displayed-p handle)))
4946 (goto-char point))))
4948 (defun gnus-article-goto-part (n)
4949 "Go to MIME part N."
4950 (gnus-goto-char (text-property-any (point-min) (point-max) 'gnus-part n)))
4952 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
4953 (let ((gnus-tmp-name
4954 (or (mail-content-type-get (mm-handle-type handle) 'name)
4955 (mail-content-type-get (mm-handle-disposition handle) 'filename)
4956 (mail-content-type-get (mm-handle-type handle) 'url)
4958 (gnus-tmp-type (mm-handle-media-type handle))
4959 (gnus-tmp-description
4960 (mail-decode-encoded-word-string (or (mm-handle-description handle)
4963 (if (if displayed (car displayed)
4964 (mm-handle-displayed-p handle))
4966 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
4968 gnus-tmp-type-long b e)
4969 (when (string-match ".*/" gnus-tmp-name)
4970 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
4971 (setq gnus-tmp-type-long (concat gnus-tmp-type
4972 (and (not (equal gnus-tmp-name ""))
4973 (concat "; " gnus-tmp-name))))
4974 (unless (equal gnus-tmp-description "")
4975 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
4980 gnus-mime-button-line-format gnus-mime-button-line-format-alist
4981 `(keymap ,gnus-mime-button-map
4982 gnus-callback gnus-mm-display-part
4983 gnus-part ,gnus-tmp-id
4984 article-type annotation
4987 ;; Exclude a newline.
4990 (widget-convert-button
4993 :action 'gnus-widget-press-button
4994 :button-keymap gnus-mime-button-map
4996 (lambda (widget/window &optional overlay pos)
4997 ;; Needed to properly clear the message due to a bug in
4998 ;; wid-edit (XEmacs only).
4999 (if (boundp 'help-echo-owns-message)
5000 (setq help-echo-owns-message t))
5002 "%S: %s the MIME part; %S: more options"
5003 (aref gnus-mouse-2 0)
5004 ;; XEmacs will get a single widget arg; Emacs 21 will get
5005 ;; window, overlay, position.
5006 (if (mm-handle-displayed-p
5008 (with-current-buffer (gnus-overlay-buffer overlay)
5009 (widget-get (widget-at (gnus-overlay-start overlay))
5011 (widget-get widget/window :mime-handle)))
5013 (aref gnus-down-mouse-3 0))))))
5015 (defun gnus-widget-press-button (elems el)
5016 (goto-char (widget-get elems :from))
5017 (gnus-article-press-button))
5019 (defvar gnus-displaying-mime nil)
5021 (defun gnus-display-mime (&optional ihandles)
5022 "Display the MIME parts."
5024 (save-selected-window
5025 (let ((window (get-buffer-window gnus-article-buffer))
5028 (select-window window)
5029 ;; We have to do this since selecting the window
5030 ;; may change the point. So we set the window point.
5031 (set-window-point window point)))
5032 (let ((handles ihandles)
5033 (inhibit-read-only t)
5036 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5037 (when gnus-article-emulate-mime
5038 (mm-uu-dissect-text-parts handles)))
5039 (gnus-article-emulate-mime
5040 (setq handles (mm-uu-dissect))))
5041 (when (and (not ihandles)
5042 (not gnus-displaying-mime))
5043 ;; Top-level call; we clean up.
5044 (when gnus-article-mime-handles
5045 (mm-destroy-parts gnus-article-mime-handles)
5046 (setq gnus-article-mime-handle-alist nil));; A trick.
5047 (setq gnus-article-mime-handles handles)
5048 ;; We allow users to glean info from the handles.
5049 (when gnus-article-mime-part-function
5050 (gnus-mime-part-function handles)))
5052 (or (not (stringp (car handles)))
5055 (when (and (not ihandles)
5056 (not gnus-displaying-mime))
5057 ;; Clean up for mime parts.
5059 (delete-region (point) (point-max)))
5060 (let ((gnus-displaying-mime t))
5061 (gnus-mime-display-part handles)))
5064 (narrow-to-region (point) (point-max))
5065 (gnus-treat-article nil 1 1)
5068 ;; Highlight the headers.
5072 (narrow-to-region (point-min) (point))
5073 (gnus-article-save-original-date
5074 (gnus-treat-article 'head)))))))))
5076 (defcustom gnus-mime-display-multipart-as-mixed nil
5077 "Display \"multipart\" parts as \"multipart/mixed\".
5079 If t, it overrides nil values of
5080 `gnus-mime-display-multipart-alternative-as-mixed' and
5081 `gnus-mime-display-multipart-related-as-mixed'."
5082 :group 'gnus-article-mime
5085 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5086 "Display \"multipart/alternative\" parts as \"multipart/mixed\"."
5088 :group 'gnus-article-mime
5091 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5092 "Display \"multipart/related\" parts as \"multipart/mixed\".
5094 If displaying \"text/html\" is discouraged \(see
5095 `mm-discouraged-alternatives'\) images or other material inside a
5096 \"multipart/related\" part might be overlooked when this variable is nil."
5098 :group 'gnus-article-mime
5101 (defun gnus-mime-display-part (handle)
5103 ;; Maybe a broken MIME message.
5106 ((not (stringp (car handle)))
5107 (gnus-mime-display-single handle))
5108 ;; User-defined multipart
5109 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5110 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
5112 ;; multipart/alternative
5113 ((and (equal (car handle) "multipart/alternative")
5114 (not (or gnus-mime-display-multipart-as-mixed
5115 gnus-mime-display-multipart-alternative-as-mixed)))
5116 (let ((id (1+ (length gnus-article-mime-handle-alist))))
5117 (push (cons id handle) gnus-article-mime-handle-alist)
5118 (gnus-mime-display-alternative (cdr handle) nil nil id)))
5119 ;; multipart/related
5120 ((and (equal (car handle) "multipart/related")
5121 (not (or gnus-mime-display-multipart-as-mixed
5122 gnus-mime-display-multipart-related-as-mixed)))
5123 ;;;!!!We should find the start part, but we just default
5124 ;;;!!!to the first part.
5125 ;;(gnus-mime-display-part (cadr handle))
5126 ;;;!!! Most multipart/related is an HTML message plus images.
5127 ;;;!!! Unfortunately we are unable to let W3 display those
5128 ;;;!!! included images, so we just display it as a mixed multipart.
5129 ;;(gnus-mime-display-mixed (cdr handle))
5130 ;;;!!! No, w3 can display everything just fine.
5131 (gnus-mime-display-part (cadr handle)))
5132 ((equal (car handle) "multipart/signed")
5133 (gnus-add-wash-type 'signed)
5134 (gnus-mime-display-security handle))
5135 ((equal (car handle) "multipart/encrypted")
5136 (gnus-add-wash-type 'encrypted)
5137 (gnus-mime-display-security handle))
5138 ;; Other multiparts are handled like multipart/mixed.
5140 (gnus-mime-display-mixed (cdr handle)))))
5142 (defun gnus-mime-part-function (handles)
5143 (if (stringp (car handles))
5144 (mapcar 'gnus-mime-part-function (cdr handles))
5145 (funcall gnus-article-mime-part-function handles)))
5147 (defun gnus-mime-display-mixed (handles)
5148 (mapcar 'gnus-mime-display-part handles))
5150 (defun gnus-mime-display-single (handle)
5151 (let ((type (mm-handle-media-type handle))
5152 (ignored gnus-ignored-mime-types)
5159 (when (string-match (pop ignored) type)
5160 (throw 'ignored nil)))
5161 (if (and (setq not-attachment
5162 (and (not (mm-inline-override-p handle))
5163 (or (not (mm-handle-disposition handle))
5164 (equal (car (mm-handle-disposition handle))
5166 (mm-attachment-override-p handle))))
5167 (mm-automatic-display-p handle)
5169 (mm-inlinable-p handle)
5170 (mm-inlined-p handle))
5171 (mm-automatic-external-display-p type)))
5173 (when (equal (mm-handle-media-supertype handle) "text")
5175 (let ((id (1+ (length gnus-article-mime-handle-alist)))
5177 (push (cons id handle) gnus-article-mime-handle-alist)
5179 (equal (mm-handle-media-supertype handle) "message"))
5182 (cond ((not (bolp)) 2)
5183 ((or (bobp) (eq (char-before (1- (point))) ?\n)) 0)
5185 (when (or (not display)
5186 (not (gnus-unbuttonized-mime-type-p type)))
5187 (gnus-insert-mime-button
5188 handle id (list (or display (and not-attachment text))))
5189 (gnus-article-insert-newline)
5190 ;; Remember modify the number of forward lines.
5198 (let ((mail-parse-charset gnus-newsgroup-charset)
5199 (mail-parse-ignored-charsets
5200 (save-excursion (condition-case ()
5201 (set-buffer gnus-summary-buffer)
5203 gnus-newsgroup-ignored-charsets)))
5204 (mm-display-part handle t))
5205 (goto-char (point-max)))
5206 ((and text not-attachment)
5210 (gnus-article-insert-newline)
5213 (let ((charset (mail-content-type-get (mm-handle-type handle)
5215 (cond ((not charset)
5216 (mm-string-as-multibyte (mm-get-part handle)))
5217 ((eq charset 'gnus-decoded)
5218 (with-current-buffer (mm-handle-buffer handle)
5221 (mm-decode-string (mm-get-part handle) charset)))))
5222 (goto-char (point-max))))
5226 (narrow-to-region beg (point))
5229 (gnus-article-mime-total-parts)
5230 (mm-handle-media-type handle)))))))))
5232 (defun gnus-unbuttonized-mime-type-p (type)
5233 "Say whether TYPE is to be unbuttonized."
5234 (unless gnus-inhibit-mime-unbuttonizing
5236 (let ((types gnus-unbuttonized-mime-types))
5238 (when (string-match (pop types) type)
5239 (throw 'found t)))))
5241 (let ((types gnus-buttonized-mime-types))
5243 (when (string-match (pop types) type)
5244 (throw 'found t)))))))))
5246 (defun gnus-article-insert-newline ()
5247 "Insert a newline, but mark it as undeletable."
5248 (gnus-put-text-property
5249 (point) (progn (insert "\n") (point)) 'gnus-undeletable t))
5251 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
5252 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
5255 handle (inhibit-read-only t) from props begend not-pref)
5256 (save-window-excursion
5259 (narrow-to-region (car ibegend)
5262 (goto-char (car ibegend))
5265 (delete-region (point-min) (point-max))
5266 (mm-remove-parts handles))
5267 (setq begend (list (point-marker)))
5269 (unless (setq not-pref (cadr (member preferred ihandles)))
5270 (setq not-pref (car ihandles)))
5273 (not (gnus-unbuttonized-mime-type-p
5274 "multipart/alternative")))
5275 (gnus-add-text-properties
5278 (insert (format "%d. " id))
5282 (unless ,(not ibegend)
5283 (setq gnus-article-mime-handle-alist
5284 ',gnus-article-mime-handle-alist))
5285 (gnus-mime-display-alternative
5286 ',ihandles ',not-pref ',begend ,id))
5287 keymap ,gnus-mime-button-map
5288 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5289 face ,gnus-article-button-face
5291 article-type multipart))
5292 (widget-convert-button 'link from (point)
5293 :action 'gnus-widget-press-button
5294 :button-keymap gnus-widget-button-keymap)
5296 (while (setq handle (pop handles))
5297 (gnus-add-text-properties
5300 (insert (format "(%c) %-18s"
5301 (if (equal handle preferred) ?* ? )
5302 (mm-handle-media-type handle)))
5306 (unless ,(not ibegend)
5307 (setq gnus-article-mime-handle-alist
5308 ',gnus-article-mime-handle-alist))
5309 (gnus-mime-display-alternative
5310 ',ihandles ',handle ',begend ,id))
5311 keymap ,gnus-mime-button-map
5312 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5313 face ,gnus-article-button-face
5316 (widget-convert-button 'link from (point)
5317 :action 'gnus-widget-press-button
5318 :button-keymap gnus-widget-button-keymap)
5322 (if (stringp (car preferred))
5323 (gnus-display-mime preferred)
5324 (let ((mail-parse-charset gnus-newsgroup-charset)
5325 (mail-parse-ignored-charsets
5326 (with-current-buffer gnus-summary-buffer
5327 gnus-newsgroup-ignored-charsets)))
5328 (mm-display-part preferred)
5332 (narrow-to-region (car begend) (point-max))
5334 nil (length gnus-article-mime-handle-alist)
5335 (gnus-article-mime-total-parts)
5336 (mm-handle-media-type handle))))))
5337 (goto-char (point-max))
5338 (setcdr begend (point-marker)))))
5340 (goto-char point))))
5342 (defconst gnus-article-wash-status-strings
5343 (let ((alist '((cite "c" "Possible hidden citation text"
5344 " " "All citation text visible")
5345 (headers "h" "Hidden headers"
5346 " " "All headers visible.")
5347 (pgp "p" "Encrypted or signed message status hidden"
5348 " " "No hidden encryption nor digital signature status")
5349 (signature "s" "Signature has been hidden"
5350 " " "Signature is visible")
5351 (overstrike "o" "Overstrike (^H) characters applied"
5352 " " "No overstrike characters applied")
5353 (emphasis "e" "/*_Emphasis_*/ characters applied"
5354 " " "No /*_emphasis_*/ characters applied")))
5356 (dolist (entry alist result)
5357 (let ((key (nth 0 entry))
5358 (on (copy-sequence (nth 1 entry)))
5359 (on-help (nth 2 entry))
5360 (off (copy-sequence (nth 3 entry)))
5361 (off-help (nth 4 entry)))
5362 (put-text-property 0 1 'help-echo on-help on)
5363 (put-text-property 0 1 'help-echo off-help off)
5364 (push (list key on off) result))))
5365 "Alist of strings describing wash status in the mode line.
5366 Each entry has the form (KEY ON OF), where the KEY is a symbol
5367 representing the particular washing function, ON is the string to use
5368 in the article mode line when the washing function is active, and OFF
5369 is the string to use when it is inactive.")
5371 (defun gnus-article-wash-status-entry (key value)
5372 (let ((entry (assoc key gnus-article-wash-status-strings)))
5373 (if value (nth 1 entry) (nth 2 entry))))
5375 (defun gnus-article-wash-status ()
5376 "Return a string which display status of article washing."
5377 (with-current-buffer gnus-article-buffer
5378 (let ((cite (memq 'cite gnus-article-wash-types))
5379 (headers (memq 'headers gnus-article-wash-types))
5380 (boring (memq 'boring-headers gnus-article-wash-types))
5381 (pgp (memq 'pgp gnus-article-wash-types))
5382 (pem (memq 'pem gnus-article-wash-types))
5383 (signed (memq 'signed gnus-article-wash-types))
5384 (encrypted (memq 'encrypted gnus-article-wash-types))
5385 (signature (memq 'signature gnus-article-wash-types))
5386 (overstrike (memq 'overstrike gnus-article-wash-types))
5387 (emphasis (memq 'emphasis gnus-article-wash-types)))
5389 (gnus-article-wash-status-entry 'cite cite)
5390 (gnus-article-wash-status-entry 'headers (or headers boring))
5391 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
5392 (gnus-article-wash-status-entry 'signature signature)
5393 (gnus-article-wash-status-entry 'overstrike overstrike)
5394 (gnus-article-wash-status-entry 'emphasis emphasis)))))
5396 (defun gnus-add-wash-type (type)
5397 "Add a washing of TYPE to the current status."
5398 (add-to-list 'gnus-article-wash-types type))
5400 (defun gnus-delete-wash-type (type)
5401 "Add a washing of TYPE to the current status."
5402 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
5404 (defun gnus-add-image (category image)
5405 "Add IMAGE of CATEGORY to the list of displayed images."
5406 (let ((entry (assq category gnus-article-image-alist)))
5408 (setq entry (list category))
5409 (push entry gnus-article-image-alist))
5410 (nconc entry (list image))))
5412 (defun gnus-delete-images (category)
5413 "Delete all images in CATEGORY."
5414 (let ((entry (assq category gnus-article-image-alist)))
5415 (dolist (image (cdr entry))
5416 (gnus-remove-image image category))
5417 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
5418 (gnus-delete-wash-type category)))
5420 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
5422 (defun gnus-article-maybe-hide-headers ()
5423 "Hide unwanted headers if `gnus-have-all-headers' is nil.
5424 Provided for backwards compatibility."
5425 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
5426 (not (with-current-buffer gnus-summary-buffer
5427 gnus-have-all-headers)))
5428 (not gnus-inhibit-hiding))
5429 (gnus-article-hide-headers)))
5433 (defun gnus-output-to-file (file-name)
5434 "Append the current article to a file named FILE-NAME."
5435 (let ((artbuf (current-buffer)))
5437 (insert-buffer-substring artbuf)
5438 ;; Append newline at end of the buffer as separator, and then
5440 (goto-char (point-max))
5442 (let ((file-name-coding-system nnmail-pathname-coding-system))
5443 (mm-append-to-file (point-min) (point-max) file-name))
5446 (defun gnus-narrow-to-page (&optional arg)
5447 "Narrow the article buffer to a page.
5448 If given a numerical ARG, move forward ARG pages."
5450 (setq arg (if arg (prefix-numeric-value arg) 0))
5452 (set-buffer gnus-article-buffer)
5453 (goto-char (point-min))
5455 ;; Remove any old next/prev buttons.
5456 (when (gnus-visual-p 'page-marker)
5457 (let ((inhibit-read-only t))
5458 (gnus-remove-text-with-property 'gnus-prev)
5459 (gnus-remove-text-with-property 'gnus-next)))
5462 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
5464 (re-search-forward page-delimiter nil 'move arg)))
5465 (goto-char (match-end 0))
5467 (goto-char (point-min))
5468 (setq gnus-page-broken
5469 (and (re-search-forward page-delimiter nil t) t))))
5470 (when gnus-page-broken
5473 (if (re-search-forward page-delimiter nil 'move)
5476 (when (and (gnus-visual-p 'page-marker)
5477 (> (point-min) (save-restriction (widen) (point-min))))
5479 (goto-char (point-min))
5480 (gnus-insert-prev-page-button)))
5481 (when (and (gnus-visual-p 'page-marker)
5482 (< (point-max) (save-restriction (widen) (point-max))))
5484 (goto-char (point-max))
5485 (gnus-insert-next-page-button))))))
5487 ;; Article mode commands
5489 (defun gnus-article-goto-next-page ()
5490 "Show the next page of the article."
5492 (when (gnus-article-next-page)
5493 (goto-char (point-min))
5494 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
5497 (defun gnus-article-goto-prev-page ()
5498 "Show the previous page of the article."
5501 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
5502 (gnus-article-prev-page nil)))
5504 ;; This is cleaner but currently breaks `gnus-pick-mode':
5506 ;; (defun gnus-article-goto-next-page ()
5507 ;; "Show the next page of the article."
5509 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
5510 ;; (gnus-summary-next-page)))
5512 ;; (defun gnus-article-goto-prev-page ()
5513 ;; "Show the next page of the article."
5515 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
5516 ;; (gnus-summary-prev-page)))
5518 (defun gnus-article-next-page (&optional lines)
5519 "Show the next page of the current article.
5520 If end of article, return non-nil. Otherwise return nil.
5521 Argument LINES specifies lines to be scrolled up."
5523 (move-to-window-line -1)
5526 (and (pos-visible-in-window-p) ;Not continuation line.
5527 (>= (1+ (point)) (point-max)))) ;Allow for trailing newline.
5528 ;; Nothing in this page.
5529 (if (or (not gnus-page-broken)
5534 (eobp)))) ;Real end-of-buffer?
5536 (when gnus-article-over-scroll
5537 (gnus-article-next-page-1 lines))
5539 (gnus-narrow-to-page 1) ;Go to next page.
5541 ;; More in this page.
5542 (gnus-article-next-page-1 lines)
5545 (defmacro gnus-article-beginning-of-window ()
5546 "Move point to the beginning of the window.
5547 In Emacs, the point is placed at the line number which `scroll-margin'
5549 (if (featurep 'xemacs)
5550 '(move-to-window-line 0)
5551 '(move-to-window-line
5552 (min (max 0 scroll-margin)
5553 (max 1 (- (window-height)
5554 (if mode-line-format 1 0)
5555 (if header-line-format 1 0)))))))
5557 (defun gnus-article-next-page-1 (lines)
5558 (when (and (not (featurep 'xemacs))
5561 (numberp (symbol-value 'scroll-margin))
5562 (> (symbol-value 'scroll-margin) 0))
5563 ;; Protect against the bug that Emacs 21.x hangs up when scrolling up for
5564 ;; too many number of lines if `scroll-margin' is set as two or greater.
5565 (setq lines (min lines
5566 (max 0 (- (count-lines (window-start) (point-max))
5567 (symbol-value 'scroll-margin))))))
5569 (let ((scroll-in-place nil))
5572 ;; Long lines may cause an end-of-buffer error.
5573 (goto-char (point-max))))
5574 (gnus-article-beginning-of-window))
5576 (defun gnus-article-prev-page (&optional lines)
5577 "Show previous page of current article.
5578 Argument LINES specifies lines to be scrolled down."
5580 (move-to-window-line 0)
5581 (if (and gnus-page-broken
5583 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
5585 (gnus-narrow-to-page -1) ;Go to previous page.
5586 (goto-char (point-max))
5590 (let ((scroll-in-place nil))
5591 (scroll-down lines))
5592 (beginning-of-buffer
5593 (goto-char (point-min))))
5594 (gnus-article-beginning-of-window))))
5596 (defun gnus-article-only-boring-p ()
5597 "Decide whether there is only boring text remaining in the article.
5598 Something \"interesting\" is a word of at least two letters that does
5599 not have a face in `gnus-article-boring-faces'."
5600 (when (and gnus-article-skip-boring
5601 (boundp 'gnus-article-boring-faces)
5602 (symbol-value 'gnus-article-boring-faces))
5604 (let ((inhibit-point-motion-hooks t))
5606 (while (re-search-forward "\\b\\w\\w" nil t)
5608 (when (not (gnus-intersection
5609 (gnus-faces-at (point))
5610 (symbol-value 'gnus-article-boring-faces)))
5611 (throw 'only-boring nil)))
5612 (throw 'only-boring t))))))
5614 (defun gnus-article-refer-article ()
5615 "Read article specified by message-id around point."
5618 (re-search-backward "[ \t]\\|^" (point-at-bol) t)
5619 (re-search-forward "<?news:<?\\|<" (point-at-eol) t)
5620 (if (re-search-forward "[^@ ]+@[^ \t>]+" (point-at-eol) t)
5621 (let ((msg-id (concat "<" (match-string 0) ">")))
5622 (set-buffer gnus-summary-buffer)
5623 (gnus-summary-refer-article msg-id))
5624 (error "No references around point"))))
5626 (defun gnus-article-show-summary ()
5627 "Reconfigure windows to show summary buffer."
5629 (if (not (gnus-buffer-live-p gnus-summary-buffer))
5630 (error "There is no summary buffer for this article buffer")
5631 (gnus-article-set-globals)
5632 (gnus-configure-windows 'article)
5633 (gnus-summary-goto-subject gnus-current-article)
5634 (gnus-summary-position-point)))
5636 (defun gnus-article-describe-briefly ()
5637 "Describe article mode commands briefly."
5639 (gnus-message 6 (substitute-command-keys "\\<gnus-article-mode-map>\\[gnus-article-goto-next-page]:Next page \\[gnus-article-goto-prev-page]:Prev page \\[gnus-article-show-summary]:Show summary \\[gnus-info-find-node]:Run Info \\[gnus-article-describe-briefly]:This help")))
5641 (defun gnus-article-summary-command ()
5642 "Execute the last keystroke in the summary buffer."
5644 (let ((obuf (current-buffer))
5645 (owin (current-window-configuration))
5647 (switch-to-buffer gnus-article-current-summary 'norecord)
5648 (setq func (lookup-key (current-local-map) (this-command-keys)))
5649 (call-interactively func)
5651 (set-window-configuration owin)
5652 (set-window-point (get-buffer-window (current-buffer)) (point))))
5654 (defun gnus-article-summary-command-nosave ()
5655 "Execute the last keystroke in the summary buffer."
5658 (pop-to-buffer gnus-article-current-summary 'norecord)
5659 (setq func (lookup-key (current-local-map) (this-command-keys)))
5660 (call-interactively func)))
5662 (defun gnus-article-check-buffer ()
5663 "Beep if not in an article buffer."
5664 (unless (equal major-mode 'gnus-article-mode)
5665 (error "Command invoked outside of a Gnus article buffer")))
5667 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
5668 "Read a summary buffer key sequence and execute it from the article buffer."
5670 (gnus-article-check-buffer)
5672 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
5673 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
5674 "=" "^" "\M-^" "|"))
5680 '("n" "Gn" "p" "Gp"))
5683 (set-buffer gnus-article-current-summary)
5684 (let (gnus-pick-mode)
5685 (push (or key last-command-event) unread-command-events)
5686 (setq keys (if (featurep 'xemacs)
5687 (events-to-keys (read-key-sequence nil))
5688 (read-key-sequence nil)))))
5692 (if (or (member keys nosaves)
5693 (member keys nosave-but-article)
5694 (member keys nosave-in-article))
5696 (save-window-excursion
5697 (pop-to-buffer gnus-article-current-summary 'norecord)
5698 ;; We disable the pick minor mode commands.
5699 (let (gnus-pick-mode)
5700 (setq func (lookup-key (current-local-map) keys))))
5704 (unless (member keys nosave-in-article)
5705 (set-buffer gnus-article-current-summary))
5706 (call-interactively func)
5707 (setq new-sum-point (point)))
5708 (when (member keys nosave-but-article)
5709 (pop-to-buffer gnus-article-buffer 'norecord)))
5710 ;; These commands should restore window configuration.
5711 (let ((obuf (current-buffer))
5712 (owin (current-window-configuration))
5714 win func in-buffer selected new-sum-start new-sum-hscroll)
5715 (cond (not-restore-window
5716 (pop-to-buffer gnus-article-current-summary 'norecord))
5717 ((setq win (get-buffer-window gnus-article-current-summary))
5718 (select-window win))
5720 (switch-to-buffer gnus-article-current-summary 'norecord)))
5721 (setq in-buffer (current-buffer))
5722 ;; We disable the pick minor mode commands.
5723 (if (and (setq func (let (gnus-pick-mode)
5724 (lookup-key (current-local-map) keys)))
5727 (call-interactively func)
5728 (when (eq win (selected-window))
5729 (setq new-sum-point (point)
5730 new-sum-start (window-start win)
5731 new-sum-hscroll (window-hscroll win)))
5732 (when (eq in-buffer (current-buffer))
5733 (setq selected (gnus-summary-select-article))
5735 (unless not-restore-window
5736 (set-window-configuration owin))
5737 (when (eq selected 'old)
5739 (set-window-start (get-buffer-window (current-buffer))
5741 (set-window-point (get-buffer-window (current-buffer))
5743 (when (and (not not-restore-window)
5745 (set-window-point win new-sum-point)
5746 (set-window-start win new-sum-start)
5747 (set-window-hscroll win new-sum-hscroll))))
5748 (set-window-configuration owin)
5751 (defun gnus-article-describe-key (key)
5752 "Display documentation of the function invoked by KEY. KEY is a string."
5753 (interactive "kDescribe key: ")
5754 (gnus-article-check-buffer)
5755 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
5757 (set-buffer gnus-article-current-summary)
5758 (let (gnus-pick-mode)
5759 (if (featurep 'xemacs)
5761 (push (elt key 0) unread-command-events)
5762 (setq key (events-to-keys
5763 (read-key-sequence "Describe key: "))))
5764 (setq unread-command-events
5766 (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
5767 (string-to-list key)))
5768 (setq key (read-key-sequence "Describe key: "))))
5770 (describe-key key)))
5772 (defun gnus-article-describe-key-briefly (key &optional insert)
5773 "Display documentation of the function invoked by KEY. KEY is a string."
5774 (interactive "kDescribe key: \nP")
5775 (gnus-article-check-buffer)
5776 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
5778 (set-buffer gnus-article-current-summary)
5779 (let (gnus-pick-mode)
5780 (if (featurep 'xemacs)
5782 (push (elt key 0) unread-command-events)
5783 (setq key (events-to-keys
5784 (read-key-sequence "Describe key: "))))
5785 (setq unread-command-events
5787 (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
5788 (string-to-list key)))
5789 (setq key (read-key-sequence "Describe key: "))))
5790 (describe-key-briefly key insert))
5791 (describe-key-briefly key insert)))
5793 (defun gnus-article-reply-with-original (&optional wide)
5794 "Start composing a reply mail to the current message.
5795 The text in the region will be yanked. If the region isn't active,
5796 the entire article will be yanked."
5798 (let ((article (cdr gnus-article-current))
5800 (if (not (gnus-region-active-p))
5801 (with-current-buffer gnus-summary-buffer
5802 (gnus-summary-reply (list (list article)) wide))
5803 (setq contents (buffer-substring (point) (mark t)))
5804 ;; Deactivate active regions.
5805 (when (and (boundp 'transient-mark-mode)
5806 transient-mark-mode)
5807 (setq mark-active nil))
5808 (with-current-buffer gnus-summary-buffer
5810 (list (list article contents)) wide)))))
5812 (defun gnus-article-followup-with-original ()
5813 "Compose a followup to the current article.
5814 The text in the region will be yanked. If the region isn't active,
5815 the entire article will be yanked."
5817 (let ((article (cdr gnus-article-current))
5819 (if (not (gnus-region-active-p))
5820 (with-current-buffer gnus-summary-buffer
5821 (gnus-summary-followup (list (list article))))
5822 (setq contents (buffer-substring (point) (mark t)))
5823 ;; Deactivate active regions.
5824 (when (and (boundp 'transient-mark-mode)
5825 transient-mark-mode)
5826 (setq mark-active nil))
5827 (with-current-buffer gnus-summary-buffer
5828 (gnus-summary-followup
5829 (list (list article contents)))))))
5831 (defun gnus-article-hide (&optional arg force)
5832 "Hide all the gruft in the current article.
5833 This means that signatures, cited text and (some) headers will be
5835 If given a prefix, show the hidden text instead."
5836 (interactive (append (gnus-article-hidden-arg) (list 'force)))
5837 (gnus-article-hide-headers arg)
5838 (gnus-article-hide-list-identifiers arg)
5839 (gnus-article-hide-citation-maybe arg force)
5840 (gnus-article-hide-signature arg))
5842 (defun gnus-article-maybe-highlight ()
5843 "Do some article highlighting if article highlighting is requested."
5844 (when (gnus-visual-p 'article-highlight 'highlight)
5845 (gnus-article-highlight-some)))
5847 (defun gnus-check-group-server ()
5848 ;; Make sure the connection to the server is alive.
5849 (unless (gnus-server-opened
5850 (gnus-find-method-for-group gnus-newsgroup-name))
5851 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
5852 (gnus-request-group gnus-newsgroup-name t)))
5855 (autoload 'nneething-get-file-name "nneething"))
5857 (defun gnus-request-article-this-buffer (article group)
5858 "Get an article and insert it into this buffer."
5859 (let (do-update-line sparse-header)
5863 (gnus-kill-all-overlays)
5864 (setq group (or group gnus-newsgroup-name))
5866 ;; Using `gnus-request-article' directly will insert the article into
5867 ;; `nntp-server-buffer' - so we'll save some time by not having to
5868 ;; copy it from the server buffer into the article buffer.
5870 ;; We only request an article by message-id when we do not have the
5871 ;; headers for it, so we'll have to get those.
5872 (when (stringp article)
5873 (gnus-read-header article))
5875 ;; If the article number is negative, that means that this article
5876 ;; doesn't belong in this newsgroup (possibly), so we find its
5877 ;; message-id and request it by id instead of number.
5878 (when (and (numberp article)
5880 (get-buffer gnus-summary-buffer)
5881 (gnus-buffer-exists-p gnus-summary-buffer))
5883 (set-buffer gnus-summary-buffer)
5884 (let ((header (gnus-summary-article-header article)))
5887 ((memq article gnus-newsgroup-sparse)
5888 ;; This is a sparse gap article.
5889 (setq do-update-line article)
5890 (setq article (mail-header-id header))
5891 (setq sparse-header (gnus-read-header article))
5892 (setq gnus-newsgroup-sparse
5893 (delq article gnus-newsgroup-sparse)))
5895 ;; It's a real article.
5896 (setq article (mail-header-id header)))
5898 ;; It is an extracted pseudo-article.
5899 (setq article 'pseudo)
5900 (gnus-request-pseudo-article header))))
5902 (let ((method (gnus-find-method-for-group
5903 gnus-newsgroup-name)))
5904 (when (and (eq (car method) 'nneething)
5906 (let ((dir (nneething-get-file-name
5907 (mail-header-id header))))
5908 (when (and (stringp dir)
5909 (file-directory-p dir))
5910 (setq article 'nneething)
5911 (gnus-group-enter-directory dir))))))))
5914 ;; Refuse to select canceled articles.
5915 ((and (numberp article)
5917 (get-buffer gnus-summary-buffer)
5918 (gnus-buffer-exists-p gnus-summary-buffer)
5919 (eq (cdr (with-current-buffer gnus-summary-buffer
5920 (assq article gnus-newsgroup-reads)))
5921 gnus-canceled-mark))
5923 ;; We first check `gnus-original-article-buffer'.
5924 ((and (get-buffer gnus-original-article-buffer)
5926 (with-current-buffer gnus-original-article-buffer
5927 (and (equal (car gnus-original-article) group)
5928 (eq (cdr gnus-original-article) article))))
5929 (insert-buffer-substring gnus-original-article-buffer)
5931 ;; Check the backlog.
5932 ((and gnus-keep-backlog
5933 (gnus-backlog-request-article group article (current-buffer)))
5935 ;; Check asynchronous pre-fetch.
5936 ((gnus-async-request-fetched-article group article (current-buffer))
5937 (gnus-async-prefetch-next group article gnus-summary-buffer)
5938 (when (and (numberp article) gnus-keep-backlog)
5939 (gnus-backlog-enter-article group article (current-buffer)))
5942 ((and gnus-use-cache
5944 (gnus-cache-request-article article group))
5946 ;; Check the agent cache.
5947 ((gnus-agent-request-article article group)
5949 ;; Get the article and put into the article buffer.
5950 ((or (stringp article)
5952 (let ((gnus-override-method gnus-override-method)
5953 (methods (and (stringp article)
5954 gnus-refer-article-method))
5955 (backend (car (gnus-find-method-for-group
5956 gnus-newsgroup-name)))
5958 (inhibit-read-only t))
5959 (if (or (not (listp methods))
5960 (and (symbolp (car methods))
5961 (assq (car methods) nnoo-definition-alist)))
5962 (setq methods (list methods)))
5963 (when (and (null gnus-override-method)
5965 (setq gnus-override-method (pop methods)))
5967 (when (eq gnus-override-method 'current)
5968 (setq gnus-override-method
5969 (with-current-buffer gnus-summary-buffer
5970 gnus-current-select-method)))
5972 (gnus-kill-all-overlays)
5973 (let ((gnus-newsgroup-name group))
5974 (gnus-check-group-server))
5976 ((gnus-request-article article group (current-buffer))
5977 (when (numberp article)
5978 (gnus-async-prefetch-next group article
5979 gnus-summary-buffer)
5980 (when gnus-keep-backlog
5981 (gnus-backlog-enter-article
5982 group article (current-buffer))))
5983 (setq result 'article))
5985 (setq gnus-override-method (pop methods)))
5986 ((not (string-match "^400 "
5987 (nnheader-get-report backend)))
5988 ;; If we get 400 server disconnect, reconnect and
5989 ;; retry; otherwise, assume the article has expired.
5990 (setq result 'done))))
5991 (and (eq result 'article) 'article)))
5995 ;; Associate this article with the current summary buffer.
5996 (setq gnus-article-current-summary gnus-summary-buffer)
5998 ;; Take the article from the original article buffer
5999 ;; and place it in the buffer it's supposed to be in.
6000 (when (and (get-buffer gnus-article-buffer)
6001 (equal (buffer-name (current-buffer))
6002 (buffer-name (get-buffer gnus-article-buffer))))
6004 (if (get-buffer gnus-original-article-buffer)
6005 (set-buffer gnus-original-article-buffer)
6006 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
6007 (buffer-disable-undo)
6008 (setq major-mode 'gnus-original-article-mode)
6009 (setq buffer-read-only t))
6010 (let ((inhibit-read-only t))
6012 (insert-buffer-substring gnus-article-buffer))
6013 (setq gnus-original-article (cons group article)))
6016 (run-hooks 'gnus-article-decode-hook)
6017 ;; Mark article as decoded or not.
6018 (setq gnus-article-decoded-p gnus-article-decode-hook))
6020 ;; Update sparse articles.
6021 (when (and do-update-line
6022 (or (numberp article)
6024 (let ((buf (current-buffer)))
6025 (set-buffer gnus-summary-buffer)
6026 (gnus-summary-update-article do-update-line sparse-header)
6027 (gnus-summary-goto-subject do-update-line nil t)
6028 (set-window-point (gnus-get-buffer-window (current-buffer) t)
6030 (set-buffer buf))))))
6036 (defcustom gnus-article-edit-mode-hook nil
6037 "Hook run in article edit mode buffers."
6038 :group 'gnus-article-various
6041 (defvar gnus-article-edit-done-function nil)
6043 (defvar gnus-article-edit-mode-map nil)
6045 ;; Should we be using derived.el for this?
6046 (unless gnus-article-edit-mode-map
6047 (setq gnus-article-edit-mode-map (make-keymap))
6048 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
6050 (gnus-define-keys gnus-article-edit-mode-map
6051 "\C-c?" describe-mode
6052 "\C-c\C-c" gnus-article-edit-done
6053 "\C-c\C-k" gnus-article-edit-exit
6054 "\C-c\C-f\C-t" message-goto-to
6055 "\C-c\C-f\C-o" message-goto-from
6056 "\C-c\C-f\C-b" message-goto-bcc
6057 ;;"\C-c\C-f\C-w" message-goto-fcc
6058 "\C-c\C-f\C-c" message-goto-cc
6059 "\C-c\C-f\C-s" message-goto-subject
6060 "\C-c\C-f\C-r" message-goto-reply-to
6061 "\C-c\C-f\C-n" message-goto-newsgroups
6062 "\C-c\C-f\C-d" message-goto-distribution
6063 "\C-c\C-f\C-f" message-goto-followup-to
6064 "\C-c\C-f\C-m" message-goto-mail-followup-to
6065 "\C-c\C-f\C-k" message-goto-keywords
6066 "\C-c\C-f\C-u" message-goto-summary
6067 "\C-c\C-f\C-i" message-insert-or-toggle-importance
6068 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
6069 "\C-c\C-b" message-goto-body
6070 "\C-c\C-i" message-goto-signature
6072 "\C-c\C-t" message-insert-to
6073 "\C-c\C-n" message-insert-newsgroups
6074 "\C-c\C-o" message-sort-headers
6075 "\C-c\C-e" message-elide-region
6076 "\C-c\C-v" message-delete-not-region
6077 "\C-c\C-z" message-kill-to-signature
6078 "\M-\r" message-newline-and-reformat
6079 "\C-c\C-a" mml-attach-file
6080 "\C-a" message-beginning-of-line
6082 "\M-;" comment-region)
6084 (gnus-define-keys (gnus-article-edit-wash-map
6085 "\C-c\C-w" gnus-article-edit-mode-map)
6086 "f" gnus-article-edit-full-stops))
6089 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
6091 ["Fetch To" message-insert-to t]
6092 ["Fetch Newsgroups" message-insert-newsgroups t]
6094 ["To" message-goto-to t]
6095 ["From" message-goto-from t]
6096 ["Subject" message-goto-subject t]
6097 ["Cc" message-goto-cc t]
6098 ["Reply-To" message-goto-reply-to t]
6099 ["Summary" message-goto-summary t]
6100 ["Keywords" message-goto-keywords t]
6101 ["Newsgroups" message-goto-newsgroups t]
6102 ["Followup-To" message-goto-followup-to t]
6103 ["Mail-Followup-To" message-goto-mail-followup-to t]
6104 ["Distribution" message-goto-distribution t]
6105 ["Body" message-goto-body t]
6106 ["Signature" message-goto-signature t]))
6108 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
6109 "Major mode for editing articles.
6110 This is an extended text-mode.
6112 \\{gnus-article-edit-mode-map}"
6113 (make-local-variable 'gnus-article-edit-done-function)
6114 (make-local-variable 'gnus-prev-winconf)
6115 (set (make-local-variable 'font-lock-defaults)
6116 '(message-font-lock-keywords t))
6117 (set (make-local-variable 'mail-header-separator) "")
6118 (set (make-local-variable 'gnus-article-edit-mode) t)
6119 (easy-menu-add message-mode-field-menu message-mode-map)
6121 (setq buffer-read-only nil)
6122 (buffer-enable-undo)
6125 (defun gnus-article-edit (&optional force)
6126 "Edit the current article.
6127 This will have permanent effect only in mail groups.
6128 If FORCE is non-nil, allow editing of articles even in read-only
6131 (when (and (not force)
6132 (gnus-group-read-only-p))
6133 (error "The current newsgroup does not support article editing"))
6134 (gnus-article-date-original)
6135 (gnus-article-edit-article
6137 `(lambda (no-highlight)
6139 (gnus-summary-edit-article-done
6140 ,(or (mail-header-references gnus-current-headers) "")
6141 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
6143 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
6144 "Start editing the contents of the current article buffer."
6145 (let ((winconf (current-window-configuration)))
6146 (set-buffer gnus-article-buffer)
6147 (let ((message-auto-save-directory
6148 ;; Don't associate the article buffer with a draft file.
6150 (gnus-article-edit-mode))
6151 (funcall start-func)
6152 (set-buffer-modified-p nil)
6153 (gnus-configure-windows 'edit-article)
6154 (setq gnus-article-edit-done-function exit-func)
6155 (setq gnus-prev-winconf winconf)
6157 (gnus-message 6 "C-c C-c to end edits"))))
6159 (defun gnus-article-edit-done (&optional arg)
6160 "Update the article edits and exit."
6162 (let ((func gnus-article-edit-done-function)
6163 (buf (current-buffer))
6164 (start (window-start))
6166 (winconf gnus-prev-winconf))
6167 (widen) ;; Widen it in case that users narrowed the buffer.
6170 ;; The cache and backlog have to be flushed somewhat.
6171 (when gnus-keep-backlog
6172 (gnus-backlog-remove-article
6173 (car gnus-article-current) (cdr gnus-article-current)))
6174 ;; Flush original article as well.
6176 (when (get-buffer gnus-original-article-buffer)
6177 (set-buffer gnus-original-article-buffer)
6178 (setq gnus-original-article nil)))
6179 (when gnus-use-cache
6180 (gnus-cache-update-article
6181 (car gnus-article-current) (cdr gnus-article-current)))
6182 ;; We remove all text props from the article buffer.
6183 (kill-all-local-variables)
6184 (set-text-properties (point-min) (point-max) nil)
6186 (set-window-configuration winconf)
6188 (set-window-start (get-buffer-window buf) start)
6189 (set-window-point (get-buffer-window buf) (point)))
6190 (gnus-summary-show-article))
6192 (defun gnus-article-edit-exit ()
6193 "Exit the article editing without updating."
6195 (when (or (not (buffer-modified-p))
6196 (yes-or-no-p "Article modified; kill anyway? "))
6197 (let ((curbuf (current-buffer))
6199 (window-start (window-start)))
6201 (if (gnus-buffer-live-p gnus-original-article-buffer)
6202 (insert-buffer-substring gnus-original-article-buffer))
6203 (let ((winconf gnus-prev-winconf))
6204 (kill-all-local-variables)
6206 (set-window-configuration winconf)
6207 ;; Tippy-toe some to make sure that point remains where it was.
6208 (save-current-buffer
6210 (set-window-start (get-buffer-window (current-buffer)) window-start)
6212 (gnus-summary-show-article)))
6214 (defun gnus-article-edit-full-stops ()
6215 "Interactively repair spacing at end of sentences."
6218 (goto-char (point-min))
6219 (search-forward-regexp "^$" nil t)
6220 (let ((case-fold-search nil))
6221 (query-replace-regexp "\\([.!?][])}]* \\)\\([[({A-Z]\\)" "\\1 \\2"))))
6224 ;;; Article highlights
6227 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
6229 ;;; Internal Variables:
6231 (defcustom gnus-button-url-regexp
6232 (if (string-match "[[:digit:]]" "1") ;; support POSIX?
6233 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|nntp\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-z0-9_.]+:[0-9]*\\)?[-a-z0-9_=!?#$@~%&*+\\/:;.,[:word:]]+[-a-z0-9_=#$@~%&*+\\/[:word:]]\\)"
6234 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|nntp\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-z0-9_.]+:[0-9]*\\)?\\([-a-z0-9_=!?#$@~%&*+\\/:;.,]\\|\\w\\)+\\([-a-z0-9_=#$@~%&*+\\/]\\|\\w\\)\\)")
6235 "Regular expression that matches URLs."
6236 :group 'gnus-article-buttons
6239 (defcustom gnus-button-valid-fqdn-regexp
6240 message-valid-fqdn-regexp
6241 "Regular expression that matches a valid FQDN."
6243 :group 'gnus-article-buttons
6246 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
6247 (defcustom gnus-button-valid-localpart-regexp
6248 "[a-z0-9$%(*-=?[_][^<>\")!;:,{}\n\t @]*"
6249 "Regular expression that matches a localpart of mail addresses or MIDs."
6251 :group 'gnus-article-buttons
6254 (defcustom gnus-button-man-handler 'manual-entry
6255 "Function to use for displaying man pages.
6256 The function must take at least one argument with a string naming the
6259 :type '(choice (function-item :tag "Man" manual-entry)
6260 (function-item :tag "Woman" woman)
6261 (function :tag "Other"))
6262 :group 'gnus-article-buttons)
6264 (defcustom gnus-ctan-url "http://tug.ctan.org/tex-archive/"
6265 "Top directory of a CTAN \(Comprehensive TeX Archive Network\) archive.
6266 If the default site is too slow, try to find a CTAN mirror, see
6267 <URL:http://tug.ctan.org/tex-archive/CTAN.sites?action=/index.html>. See also
6268 the variable `gnus-button-handle-ctan'."
6270 :group 'gnus-article-buttons
6271 :link '(custom-manual "(gnus)Group Parameters")
6272 :type '(choice (const "http://www.tex.ac.uk/tex-archive/")
6273 (const "http://tug.ctan.org/tex-archive/")
6274 (const "http://www.dante.de/CTAN/")
6275 (string :tag "Other")))
6277 (defcustom gnus-button-ctan-handler 'browse-url
6278 "Function to use for displaying CTAN links.
6279 The function must take one argument, the string naming the URL."
6281 :type '(choice (function-item :tag "Browse Url" browse-url)
6282 (function :tag "Other"))
6283 :group 'gnus-article-buttons)
6285 (defcustom gnus-button-handle-ctan-bogus-regexp "^/?tex-archive/\\|^/"
6286 "Bogus strings removed from CTAN URLs."
6288 :group 'gnus-article-buttons
6289 :type '(choice (const "^/?tex-archive/\\|/")
6290 (regexp :tag "Other")))
6292 (defcustom gnus-button-ctan-directory-regexp
6294 (list "archive-tools" "biblio" "bibliography" "digests" "documentation"
6295 "dviware" "fonts" "graphics" "help" "indexing" "info" "language"
6296 "languages" "macros" "nonfree" "obsolete" "support" "systems"
6297 "tds" "tools" "usergrps" "web") t)
6298 "Regular expression for ctan directories.
6299 It should match all directories in the top level of `gnus-ctan-url'."
6301 :group 'gnus-article-buttons
6304 (defcustom gnus-button-mid-or-mail-regexp
6305 (concat "\\b\\(<?" gnus-button-valid-localpart-regexp "@"
6306 gnus-button-valid-fqdn-regexp
6308 "Regular expression that matches a message ID or a mail address."
6310 :group 'gnus-article-buttons
6313 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
6314 "What to do when the button on a string as \"foo123@bar.invalid\" is pushed.
6315 Strings like this can be either a message ID or a mail address. If it is one
6316 of the symbols `mid' or `mail', Gnus will always assume that the string is a
6317 message ID or a mail address, respectively. If this variable is set to the
6318 symbol `ask', always query the user what do do. If it is a function, this
6319 function will be called with the string as it's only argument. The function
6320 must return `mid', `mail', `invalid' or `ask'."
6322 :group 'gnus-article-buttons
6323 :type '(choice (function-item :tag "Heuristic function"
6324 gnus-button-mid-or-mail-heuristic)
6329 (defcustom gnus-button-mid-or-mail-heuristic-alist
6330 '((-10.0 . ".+\\$.+@")
6333 (-5.0 . "\\+[^+]*\\+.*@") ;; # two plus signs
6334 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
6335 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
6336 (-1.0 . "^[^a-z]+@")
6338 (-5.0 . "\\.[0-9][0-9]+.*@") ;; "\.[0-9]{2,}.*\@"
6339 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
6340 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
6341 (-5.0 . "\\...?.?@") ;; (-5.0 . "\..{1,3}\@")
6344 (-1.0 . "^[0-9][0-9]")
6346 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
6347 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
6348 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
6349 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
6351 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
6352 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
6355 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
6357 ;; compensation for TDMA dated mail addresses:
6358 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
6360 (-20.0 . "\\.fsf@") ;; Gnus
6363 (-20.0 . "_-_") ;; Subject change in thread
6365 (-20.0 . "\\.ln@") ;; leafnode
6366 (-30.0 . "@ID-[0-9]+\\.[a-zA-Z]+\\.dfncis\\.de")
6367 (-30.0 . "@4[Aa][Xx]\\.com") ;; Forte Agent
6369 ;; (5.0 . "") ;; $local_part_len <= 7
6370 (10.0 . "^[^0-9]+@")
6371 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
6372 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
6375 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
6377 (0.5 . "^[A-Z][a-z]")
6378 (0.5 . "^[A-Z][a-z][a-z]")
6379 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
6380 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
6381 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
6383 A negative RATE indicates a message IDs, whereas a positive indicates a mail
6384 address. The REGEXP is processed with `case-fold-search' set to nil."
6386 :group 'gnus-article-buttons
6387 :type '(repeat (cons (number :tag "Rate")
6388 (regexp :tag "Regexp"))))
6390 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
6391 "Guess whether MID-OR-MAIL is a message ID or a mail address.
6392 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
6393 address, `ask' if unsure and `invalid' if the string is invalid."
6394 (let ((case-fold-search nil)
6395 (list gnus-button-mid-or-mail-heuristic-alist)
6396 (result 0) rate regexp lpartlen elem)
6398 (length (gnus-replace-in-string mid-or-mail "^\\(.*\\)@.*$" "\\1")))
6399 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
6400 ;; Certain special cases...
6403 "^0[0-9]+-[0-9][0-9][0-9][0-9]@t-online\\.de$\\|"
6404 "^[0-9]+\\.[0-9]+@compuserve\\|"
6405 "@public\\.gmane\\.org")
6407 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
6408 (setq result 'mail))
6409 (when (string-match "@.*@\\| " mid-or-mail)
6410 (gnus-message 8 "`%s' is invalid." mid-or-mail)
6411 (setq result 'invalid))
6412 ;; Nothing more to do, if result is not a number here...
6413 (when (numberp result)
6415 (setq elem (car list)
6419 (when (string-match regexp mid-or-mail)
6420 (setq result (+ result rate))
6422 9 "`%s' matched `%s', rate `%s', result `%s'."
6423 mid-or-mail regexp rate result)))
6424 (when (<= lpartlen 7)
6425 (setq result (+ result 5.0))
6426 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
6427 mid-or-mail result))
6428 (when (>= lpartlen 12)
6429 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
6431 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
6432 ;; Long local part should contain realname if e-mail address,
6433 ;; too many digits: message-id.
6434 ;; $score -= 5.0 + 0.1 * $local_part_len;
6435 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
6436 (setq result (+ result rate))
6438 9 "Many digits in `%s', rate `%s', result `%s'."
6439 mid-or-mail rate result))
6440 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
6442 ;; Too few vowels [^aeiouy]{4,}.*\@
6443 (setq result (+ result -5.0))
6445 9 "Few vowels in `%s', rate `%s', result `%s'."
6446 mid-or-mail -5.0 result))
6448 (setq result (+ result 5.0))
6450 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
6451 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
6452 ;; Maybe we should make this a customizable alist: (condition . 'result)
6454 ((symbolp result) result)
6455 ;; Now convert number into proper results:
6456 ((< result -10.0) 'mid)
6457 ((> result 10.0) 'mail)
6460 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
6461 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
6462 (url-mid (concat "news" ":" mid-or-mail))
6463 (url-mailto (concat "mailto" ":" mid-or-mail)))
6464 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
6465 (when (fboundp pref)
6467 ;; get rid of surrounding angles...
6469 (gnus-replace-in-string mid-or-mail "^<\\|>$" "")))
6470 (if (or (eq 'mid guessed) (eq 'mail guessed))
6474 (save-window-excursion
6475 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
6478 (cond ((eq pref 'mid)
6479 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
6480 (gnus-button-handle-news url-mid))
6482 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
6483 (gnus-url-mailto url-mailto))
6484 (t (gnus-message 3 "Invalid string.")))))
6486 (defun gnus-button-handle-custom (fun arg)
6487 "Call function FUN on argument ARG.
6488 Both FUN and ARG are supposed to be strings. ARG will be passed
6489 as a symbol to FUN."
6490 (funcall (intern fun) (intern arg)))
6492 (defvar gnus-button-handle-describe-prefix "^\\(C-h\\|<?[Ff]1>?\\)")
6494 ;; FIXME: Maybe we should merge some of the functions that do quite similar
6497 (defun gnus-button-handle-describe-function (url)
6498 "Call `describe-function' when pushing the corresponding URL button."
6501 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
6503 (defun gnus-button-handle-describe-variable (url)
6504 "Call `describe-variable' when pushing the corresponding URL button."
6507 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
6509 (defun gnus-button-handle-symbol (url)
6510 "Display help on variable or function.
6511 Calls `describe-variable' or `describe-function'."
6512 (let ((sym (intern url)))
6514 ((fboundp sym) (describe-function sym))
6515 ((boundp sym) (describe-variable sym))
6516 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
6518 (defun gnus-button-handle-describe-key (url)
6519 "Call `describe-key' when pushing the corresponding URL button."
6521 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
6522 (keys (ignore-errors (eval `(kbd ,key-string)))))
6525 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
6527 (defun gnus-button-handle-apropos (url)
6528 "Call `apropos' when pushing the corresponding URL button."
6529 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6531 (defun gnus-button-handle-apropos-command (url)
6532 "Call `apropos' when pushing the corresponding URL button."
6534 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6536 (defun gnus-button-handle-apropos-variable (url)
6537 "Call `apropos' when pushing the corresponding URL button."
6539 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
6540 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6542 (defun gnus-button-handle-apropos-documentation (url)
6543 "Call `apropos' when pushing the corresponding URL button."
6545 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
6546 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6548 (defun gnus-button-handle-library (url)
6549 "Call `locate-library' when pushing the corresponding URL button."
6550 (gnus-message 9 "url=`%s'" url)
6551 (let* ((lib (locate-library url))
6552 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
6554 (gnus-message 1 "Cannot locale library `%s'." url)
6555 (find-file-read-only file))))
6557 (defun gnus-button-handle-ctan (url)
6558 "Call `browse-url' when pushing a CTAN URL button."
6560 gnus-button-ctan-handler
6563 (gnus-replace-in-string url gnus-button-handle-ctan-bogus-regexp ""))))
6565 (defcustom gnus-button-tex-level 5
6566 "*Integer that says how many TeX-related buttons Gnus will show.
6567 The higher the number, the more buttons will appear and the more false
6568 positives are possible. Note that you can set this variable local to
6569 specific groups. Setting it higher in TeX groups is probably a good idea.
6570 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
6571 how to set variables in specific groups."
6573 :group 'gnus-article-buttons
6574 :link '(custom-manual "(gnus)Group Parameters")
6577 (defcustom gnus-button-man-level 5
6578 "*Integer that says how many man-related buttons Gnus will show.
6579 The higher the number, the more buttons will appear and the more false
6580 positives are possible. Note that you can set this variable local to
6581 specific groups. Setting it higher in Unix groups is probably a good idea.
6582 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
6583 how to set variables in specific groups."
6585 :group 'gnus-article-buttons
6586 :link '(custom-manual "(gnus)Group Parameters")
6589 (defcustom gnus-button-emacs-level 5
6590 "*Integer that says how many emacs-related buttons Gnus will show.
6591 The higher the number, the more buttons will appear and the more false
6592 positives are possible. Note that you can set this variable local to
6593 specific groups. Setting it higher in Emacs or Gnus related groups is
6594 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
6595 `gnus-parameters' on how to set variables in specific groups."
6597 :group 'gnus-article-buttons
6598 :link '(custom-manual "(gnus)Group Parameters")
6601 (defcustom gnus-button-message-level 5
6602 "*Integer that says how many buttons for news or mail messages will appear.
6603 The higher the number, the more buttons will appear and the more false
6604 positives are possible."
6605 ;; mail addresses, MIDs, URLs for news, ...
6607 :group 'gnus-article-buttons
6610 (defcustom gnus-button-browse-level 5
6611 "*Integer that says how many buttons for browsing will appear.
6612 The higher the number, the more buttons will appear and the more false
6613 positives are possible."
6614 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
6616 :group 'gnus-article-buttons
6619 (defcustom gnus-button-alist
6620 '(("<\\(url:[>\n\t ]*?\\)?\\(nntp\\|news\\):[>\n\t ]*\\([^>\n\t ]*@[^>\n\t ]*\\)>"
6621 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
6622 ((concat "\\b\\(nntp\\|news\\):\\("
6623 gnus-button-valid-localpart-regexp "@[a-z0-9.-]+[a-z]\\)")
6624 0 t gnus-button-handle-news 2)
6625 ("\\(\\b<\\(url:[>\n\t ]*\\)?\\(nntp\\|news\\):[>\n\t ]*\\(//\\)?\\([^>\n\t ]*\\)>\\)"
6626 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
6627 ("\\b\\(nntp\\|news\\):\\(//\\)?\\([^'\">\n\t ]+\\)"
6628 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
6629 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
6630 ("\\bmid:\\(//\\)?\\([^'\">\n\t ]+@[^'\">\n\t /]+\\)"
6631 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
6632 ("\\bin\\( +article\\| +message\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)"
6633 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
6634 ("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>"
6635 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
6636 ;; RFC 2368 (The mailto URL scheme)
6637 ("\\bmailto:\\([-a-z.@_+0-9%=?&/]+\\)"
6638 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
6639 ("\\bmailto:\\([^ \n\t]+\\)"
6640 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
6642 ((concat "\\bCTAN:[ \t\n]?[^>)!;:,'\n\t ]*\\("
6643 gnus-button-ctan-directory-regexp
6644 "[^][>)!;:,'\n\t ]+\\)")
6645 0 (>= gnus-button-tex-level 1) gnus-button-handle-ctan 1)
6646 ((concat "\\btex-archive/\\("
6647 gnus-button-ctan-directory-regexp
6648 "/[-_.a-z0-9/]+[-_./a-z0-9]+[/a-z0-9]\\)")
6649 1 (>= gnus-button-tex-level 6) gnus-button-handle-ctan 1)
6652 gnus-button-ctan-directory-regexp
6653 "/[-_.a-z0-9]+/[-_./a-z0-9]+[/a-z0-9]\\)")
6654 1 (>= gnus-button-tex-level 8) gnus-button-handle-ctan 1)
6655 ;; This is info (home-grown style) <info://foo/bar+baz>
6656 ("\\binfo://\\([^'\">\n\t ]+\\)"
6657 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
6658 ;; Info GNOME style <info:foo#bar_baz>
6659 ("\\binfo:\\([^('\n\t\r \"><][^'\n\t\r \"><]*\\)"
6660 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
6661 ;; Info KDE style <info:(foo)bar baz>
6662 ("<\\(info:\\(([^)]+)[^>\n\r]*\\)\\)>"
6663 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
6664 ("\\((Info-goto-node\\|(info\\)[ \t\n]*\\(\"[^\"]*\"\\))" 0
6665 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
6666 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+i[ \t\n]+d?[ \t\n]?m[ \t\n]+\\([^ ]+ ?[^ ]+\\)[ \t\n]+RET"
6667 ;; Info links like `C-h i d m CC Mode RET'
6668 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 2)
6670 ("M-x[ \t\n]\\(customize-[^ ]+\\)[ \t\n]RET[ \t\n]\\([^ ]+\\)[ \t\n]RET" 0
6671 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
6672 ;; Emacs help commands
6673 ("M-x[ \t\n]+apropos[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET"
6674 ;; regexp doesn't match arguments containing ` '.
6675 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
6676 ("M-x[ \t\n]+apropos-command[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET"
6677 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
6678 ("M-x[ \t\n]+apropos-variable[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET"
6679 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
6680 ("M-x[ \t\n]+apropos-documentation[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET"
6681 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
6682 ;; The following entries may lead to many false positives so don't enable
6683 ;; them by default (use a high button level).
6684 ("/\\([a-z][-a-z0-9]+\\.el\\)\\>[^.?]"
6685 ;; Exclude [.?] for URLs in gmane.emacs.cvs
6686 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
6687 ("`\\([a-z][-a-z0-9]+\\.el\\)'"
6688 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
6689 ("`\\([a-z][a-z0-9]+-[a-z]+-[-a-z]+\\|\\(gnus\\|message\\)-[-a-z]+\\)'"
6690 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
6691 ("`\\([a-z][a-z0-9]+-[a-z]+\\)'"
6692 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
6693 ("(setq[ \t\n]+\\([a-z][a-z0-9]+-[-a-z0-9]+\\)[ \t\n]+.+)"
6694 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
6695 ("\\bM-x[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET"
6696 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
6697 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+f[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET"
6698 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
6699 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+v[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET"
6700 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
6701 ("`\\(\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+k[ \t\n]+\\([^']+\\)\\)'"
6702 ;; Unlike the other regexps we really have to require quoting
6703 ;; here to determine where it ends.
6704 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
6705 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
6706 ("<URL: *\\([^<>]*\\)>"
6707 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
6708 ;; RFC 2396 (2.4.3., delims) ...
6709 ("\"URL: *\\([^\"]*\\)\""
6710 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
6711 ;; RFC 2396 (2.4.3., delims) ...
6712 ("\"URL: *\\([^\"]*\\)\""
6713 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
6715 (gnus-button-url-regexp
6716 0 (>= gnus-button-browse-level 0) browse-url 0)
6718 ("\\b\\([a-z][a-z]+([1-9])\\)\\W"
6719 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
6720 gnus-button-handle-man 1)
6721 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
6722 ("\\b\\([a-z][-_.a-z0-9]+([1-9])\\)\\W"
6723 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
6724 gnus-button-handle-man 1)
6725 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
6726 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
6727 ("\\b\\(\\(?:[a-z][-+_.:a-z0-9]+([1-9][X1a-z]*)\\)\\|\\b\\(?:X([1-9])\\)\\)\\W"
6728 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
6729 ;; Recognizing patches to .el files. This is somewhat obscure,
6730 ;; but considering the percentage of Gnus users who hack Emacs
6732 ("^--- \\([^ .]+\\.el\\).*\n.*\n@@ -?\\([0-9]+\\)" 1
6733 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
6734 ("^\\*\\*\\* \\([^ .]+\\.el\\).*\n.*\n\\*+\n\\*\\*\\* \\([0-9]+\\)" 1
6735 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
6736 ;; MID or mail: To avoid too many false positives we don't try to catch
6737 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
6738 ;; at least one dot. TLD must contain two or three chars or be a know TLD
6739 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
6740 ;; so that non-ambiguous entries (see above) match first.
6741 (gnus-button-mid-or-mail-regexp
6742 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
6743 "*Alist of regexps matching buttons in article bodies.
6745 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
6746 REGEXP: is the string (case insensitive) matching text around the button (can
6747 also be Lisp expression evaluating to a string),
6748 BUTTON: is the number of the regexp grouping actually matching the button,
6749 FORM: is a Lisp expression which must eval to true for the button to
6751 CALLBACK: is the function to call when the user push this button, and each
6752 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
6754 CALLBACK can also be a variable, in that case the value of that
6755 variable it the real callback function."
6756 :group 'gnus-article-buttons
6757 :type '(repeat (list (choice regexp variable sexp)
6758 (integer :tag "Button")
6760 (function :tag "Callback")
6763 (integer :tag "Regexp group")))))
6765 (defcustom gnus-header-button-alist
6766 '(("^\\(References\\|Message-I[Dd]\\|^In-Reply-To\\):" "<[^<>]+>"
6767 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
6768 ("^\\(From\\|Reply-To\\):" ": *\\(.+\\)$"
6769 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
6770 ("^\\(Cc\\|To\\):" "[^ \t\n<>,()\"]+@[^ \t\n<>,()\"]+"
6771 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
6772 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
6773 0 (>= gnus-button-browse-level 0) browse-url 0)
6774 ("^Subject:" gnus-button-url-regexp
6775 0 (>= gnus-button-browse-level 0) browse-url 0)
6776 ("^[^:]+:" gnus-button-url-regexp
6777 0 (>= gnus-button-browse-level 0) browse-url 0)
6778 ("^OpenPGP:.*url=" gnus-button-url-regexp
6779 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
6780 ("^[^:]+:" "\\bmailto:\\([-a-z.@_+0-9%=?&/]+\\)"
6781 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
6782 ("^[^:]+:" "\\(<\\(url: \\)?\\(nntp\\|news\\):\\([^>\n ]*\\)>\\)"
6783 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
6784 "*Alist of headers and regexps to match buttons in article heads.
6786 This alist is very similar to `gnus-button-alist', except that each
6787 alist has an additional HEADER element first in each entry:
6789 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
6791 HEADER is a regexp to match a header. For a fuller explanation, see
6792 `gnus-button-alist'."
6793 :group 'gnus-article-buttons
6794 :group 'gnus-article-headers
6795 :type '(repeat (list (regexp :tag "Header")
6796 (choice regexp variable)
6797 (integer :tag "Button")
6799 (function :tag "Callback")
6802 (integer :tag "Regexp group")))))
6806 (defun gnus-article-push-button (event)
6807 "Check text under the mouse pointer for a callback function.
6808 If the text under the mouse pointer has a `gnus-callback' property,
6809 call it with the value of the `gnus-data' text property."
6811 (set-buffer (window-buffer (posn-window (event-start event))))
6812 (let* ((pos (posn-point (event-start event)))
6813 (data (get-text-property pos 'gnus-data))
6814 (fun (get-text-property pos 'gnus-callback)))
6817 (funcall fun data))))
6819 (defun gnus-article-press-button ()
6820 "Check text at point for a callback function.
6821 If the text at point has a `gnus-callback' property,
6822 call it with the value of the `gnus-data' text property."
6824 (let ((data (get-text-property (point) 'gnus-data))
6825 (fun (get-text-property (point) 'gnus-callback)))
6827 (funcall fun data))))
6829 (defun gnus-article-highlight (&optional force)
6830 "Highlight current article.
6831 This function calls `gnus-article-highlight-headers',
6832 `gnus-article-highlight-citation',
6833 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
6834 do the highlighting. See the documentation for those functions."
6835 (interactive (list 'force))
6836 (gnus-article-highlight-headers)
6837 (gnus-article-highlight-citation force)
6838 (gnus-article-highlight-signature)
6839 (gnus-article-add-buttons force)
6840 (gnus-article-add-buttons-to-head))
6842 (defun gnus-article-highlight-some (&optional force)
6843 "Highlight current article.
6844 This function calls `gnus-article-highlight-headers',
6845 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
6846 do the highlighting. See the documentation for those functions."
6847 (interactive (list 'force))
6848 (gnus-article-highlight-headers)
6849 (gnus-article-highlight-signature)
6850 (gnus-article-add-buttons))
6852 (defun gnus-article-highlight-headers ()
6853 "Highlight article headers as specified by `gnus-header-face-alist'."
6855 (gnus-with-article-headers
6856 (let (regexp header-face field-face from hpoints fpoints)
6857 (dolist (entry gnus-header-face-alist)
6858 (goto-char (point-min))
6859 (setq regexp (concat "^\\("
6860 (if (string-equal "" (nth 0 entry))
6864 header-face (nth 1 entry)
6865 field-face (nth 2 entry))
6866 (while (and (re-search-forward regexp nil t)
6870 (unless (search-forward ":" nil t)
6872 (when (and header-face
6873 (not (memq (point) hpoints)))
6874 (push (point) hpoints)
6875 (gnus-put-text-property from (point) 'face header-face))
6876 (when (and field-face
6877 (not (memq (setq from (point)) fpoints)))
6879 (if (re-search-forward "^[^ \t]" nil t)
6881 (goto-char (point-max)))
6882 (gnus-put-text-property from (point) 'face field-face)))))))
6884 (defun gnus-article-highlight-signature ()
6885 "Highlight the signature in an article.
6886 It does this by highlighting everything after
6887 `gnus-signature-separator' using the face `gnus-signature'."
6889 (gnus-with-article-buffer
6890 (let ((inhibit-point-motion-hooks t))
6892 (when (and gnus-signature-face
6893 (gnus-article-narrow-to-signature))
6894 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max))
6895 'face gnus-signature-face)
6897 (gnus-article-search-signature)
6898 (let ((start (match-beginning 0))
6899 (end (set-marker (make-marker) (1+ (match-end 0)))))
6900 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
6903 (defun gnus-button-in-region-p (b e prop)
6904 "Say whether PROP exists in the region."
6905 (text-property-not-all b e prop nil))
6907 (defun gnus-article-add-buttons (&optional force)
6908 "Find external references in the article and make buttons of them.
6909 \"External references\" are things like Message-IDs and URLs, as
6910 specified by `gnus-button-alist'."
6911 (interactive (list 'force))
6912 (gnus-with-article-buffer
6913 (let ((inhibit-point-motion-hooks t)
6914 (case-fold-search t)
6915 (alist gnus-button-alist)
6917 ;; Remove all old markers.
6918 (let (marker entry new-list)
6919 (while (setq marker (pop gnus-button-marker-list))
6920 (if (or (< marker (point-min)) (>= marker (point-max)))
6921 (push marker new-list)
6923 (when (setq entry (gnus-button-entry))
6924 (put-text-property (match-beginning (nth 1 entry))
6925 (match-end (nth 1 entry))
6926 'gnus-callback nil))
6927 (set-marker marker nil)))
6928 (setq gnus-button-marker-list new-list))
6929 ;; We skip the headers.
6932 (while (setq entry (pop alist))
6933 (setq regexp (eval (car entry)))
6935 (while (re-search-forward regexp nil t)
6936 (let* ((start (and entry (match-beginning (nth 1 entry))))
6937 (end (and entry (match-end (nth 1 entry))))
6938 (from (match-beginning 0)))
6939 (when (and (or (eq t (nth 2 entry))
6940 (eval (nth 2 entry)))
6941 (not (gnus-button-in-region-p
6942 start end 'gnus-callback)))
6943 ;; That optional form returned non-nil, so we add the
6945 (gnus-article-add-button
6946 start end 'gnus-button-push
6947 (car (push (set-marker (make-marker) from)
6948 gnus-button-marker-list))))))))))
6950 ;; Add buttons to the head of an article.
6951 (defun gnus-article-add-buttons-to-head ()
6952 "Add buttons to the head of the article."
6954 (gnus-with-article-headers
6956 (dolist (entry gnus-header-button-alist)
6957 ;; Each alist entry.
6958 (goto-char (point-min))
6959 (while (re-search-forward (car entry) nil t)
6960 ;; Each header matching the entry.
6961 (setq beg (match-beginning 0))
6962 (setq end (or (and (re-search-forward "^[^ \t]" nil t)
6963 (match-beginning 0))
6966 (while (re-search-forward (eval (nth 1 entry)) end t)
6967 ;; Each match within a header.
6968 (let* ((entry (cdr entry))
6969 (start (match-beginning (nth 1 entry)))
6970 (end (match-end (nth 1 entry)))
6971 (form (nth 2 entry)))
6972 (goto-char (match-end 0))
6974 (gnus-article-add-button
6975 start end (nth 3 entry)
6976 (buffer-substring (match-beginning (nth 4 entry))
6977 (match-end (nth 4 entry)))))))
6978 (goto-char end))))))
6980 ;;; External functions:
6982 (defun gnus-article-add-button (from to fun &optional data)
6983 "Create a button between FROM and TO with callback FUN and data DATA."
6984 (when gnus-article-button-face
6985 (gnus-overlay-put (gnus-make-overlay from to)
6986 'face gnus-article-button-face))
6987 (gnus-add-text-properties
6989 (nconc (and gnus-article-mouse-face
6990 (list gnus-mouse-face-prop gnus-article-mouse-face))
6991 (list 'gnus-callback fun)
6992 (and data (list 'gnus-data data))))
6993 (widget-convert-button 'link from to :action 'gnus-widget-press-button
6994 :button-keymap gnus-widget-button-keymap))
6996 ;;; Internal functions:
6998 (defun gnus-article-set-globals ()
6999 (with-current-buffer gnus-summary-buffer
7000 (gnus-set-global-variables)))
7002 (defun gnus-signature-toggle (end)
7003 (gnus-with-article-buffer
7004 (let ((inhibit-point-motion-hooks t))
7005 (if (text-property-any end (point-max) 'article-type 'signature)
7007 (gnus-delete-wash-type 'signature)
7008 (gnus-remove-text-properties-when
7009 'article-type 'signature end (point-max)
7010 (cons 'article-type (cons 'signature
7011 gnus-hidden-properties))))
7012 (gnus-add-wash-type 'signature)
7013 (gnus-add-text-properties-when
7014 'article-type nil end (point-max)
7015 (cons 'article-type (cons 'signature
7016 gnus-hidden-properties)))))
7017 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
7018 (gnus-set-mode-line 'article))))
7020 (defun gnus-button-entry ()
7021 ;; Return the first entry in `gnus-button-alist' matching this place.
7022 (let ((alist gnus-button-alist)
7025 (setq entry (pop alist))
7026 (if (looking-at (eval (car entry)))
7031 (defun gnus-button-push (marker)
7032 ;; Push button starting at MARKER.
7035 (let* ((entry (gnus-button-entry))
7036 (inhibit-point-motion-hooks t)
7038 (args (mapcar (lambda (group)
7039 (let ((string (match-string group)))
7040 (set-text-properties
7041 0 (length string) nil string)
7048 (fboundp (symbol-value fun)))
7049 (apply (symbol-value fun) args))
7051 (gnus-message 1 "You must define `%S' to use this button"
7052 (cons fun args)))))))
7054 (defun gnus-parse-news-url (url)
7055 (let (scheme server port group message-id articles)
7058 (goto-char (point-min))
7059 (when (looking-at "\\([A-Za-z]+\\):")
7060 (setq scheme (match-string 1))
7061 (goto-char (match-end 0)))
7062 (when (looking-at "//\\([^:/]+\\)\\(:?\\)\\([0-9]+\\)?/")
7063 (setq server (match-string 1))
7064 (setq port (if (stringp (match-string 3))
7065 (string-to-number (match-string 3))
7067 (goto-char (match-end 0)))
7070 ((looking-at "\\(.*@.*\\)")
7071 (setq message-id (match-string 1)))
7072 ((looking-at "\\([^/]+\\)/\\([-0-9]+\\)")
7073 (setq group (match-string 1)
7074 articles (split-string (match-string 2) "-")))
7075 ((looking-at "\\([^/]+\\)/?")
7076 (setq group (match-string 1)))
7078 (error "Unknown news URL syntax"))))
7079 (list scheme server port group message-id articles)))
7081 (defun gnus-button-handle-news (url)
7083 (destructuring-bind (scheme server port group message-id articles)
7084 (gnus-parse-news-url url)
7088 (set-buffer gnus-summary-buffer)
7090 (let ((gnus-refer-article-method
7091 (nconc (list (list 'nntp server))
7092 gnus-refer-article-method))
7093 (nntp-port-number (or port "nntp")))
7094 (gnus-message 7 "Fetching %s with %s"
7095 message-id gnus-refer-article-method)
7096 (gnus-summary-refer-article message-id))
7097 (gnus-summary-refer-article message-id))))
7099 (gnus-button-fetch-group url)))))
7101 (defun gnus-button-patch (library line)
7102 "Visit an Emacs Lisp library LIBRARY on line LINE."
7104 (let ((file (locate-library (file-name-nondirectory library))))
7106 (error "Couldn't find library %s" library))
7108 (goto-line (string-to-number line))))
7110 (defun gnus-button-handle-man (url)
7112 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
7113 (when (eq gnus-button-man-handler 'woman)
7114 (setq url (gnus-replace-in-string url "([1-9][X1a-z]*).*\\'" "")))
7115 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
7116 (funcall gnus-button-man-handler url))
7118 (defun gnus-button-handle-info-url (url)
7119 "Fetch an info URL."
7120 (setq url (mm-subst-char-in-string ?+ ?\ url))
7122 ((string-match "^\\([^:/]+\\)?/\\(.*\\)" url)
7123 (gnus-info-find-node
7124 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
7126 ")" (gnus-url-unhex-string (match-string 2 url)))))
7127 ((string-match "([^)\"]+)[^\"]+" url)
7129 (gnus-replace-in-string
7130 (gnus-replace-in-string url "[\n\t ]+" " ") "\"" ""))
7131 (gnus-info-find-node url))
7132 (t (error "Can't parse %s" url))))
7134 (defun gnus-button-handle-info-url-gnome (url)
7135 "Fetch GNOME style info URL."
7136 (setq url (mm-subst-char-in-string ?_ ?\ url))
7137 (if (string-match "\\([^#]+\\)#?\\(.*\\)" url)
7138 (gnus-info-find-node
7140 (gnus-url-unhex-string
7141 (match-string 1 url))
7143 (or (gnus-url-unhex-string
7144 (match-string 2 url))
7146 (error "Can't parse %s" url)))
7148 (defun gnus-button-handle-info-url-kde (url)
7149 "Fetch KDE style info URL."
7150 (gnus-info-find-node (gnus-url-unhex-string url)))
7152 (defun gnus-button-handle-info-keystrokes (url)
7153 "Call `info' when pushing the corresponding URL button."
7154 ;; For links like `C-h i d m gnus RET', `C-h i d m CC Mode RET'.
7159 (defun gnus-button-openpgp (url)
7160 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
7162 (mm-url-insert-file-contents-external url)
7163 (pgg-snarf-keys-region (point-min) (point-max))
7164 (pgg-display-output-buffer nil nil nil)))
7166 (defun gnus-button-message-id (message-id)
7168 (with-current-buffer gnus-summary-buffer
7169 (gnus-summary-refer-article message-id)))
7171 (defun gnus-button-fetch-group (address)
7172 "Fetch GROUP specified by ADDRESS."
7173 (if (not (string-match "[:/]" address))
7174 ;; This is just a simple group url.
7175 (gnus-group-read-ephemeral-group address gnus-select-method)
7178 "^\\([^:/]+\\)\\(:\\([^/]+\\)\\)?/\\([^/]+\\)\\(/\\([0-9]+\\)\\)?"
7180 (error "Can't parse %s" address)
7181 (gnus-group-read-ephemeral-group
7182 (match-string 4 address)
7183 `(nntp ,(match-string 1 address)
7184 (nntp-address ,(match-string 1 address))
7185 (nntp-port-number ,(if (match-end 3)
7186 (match-string 3 address)
7189 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
7191 (defun gnus-url-parse-query-string (query &optional downcase)
7192 (let (retval pairs cur key val)
7193 (setq pairs (split-string query "&"))
7195 (setq cur (car pairs)
7197 (if (not (string-match "=" cur))
7199 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
7200 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
7202 (setq key (downcase key)))
7203 (setq cur (assoc key retval))
7205 (setcdr cur (cons val (cdr cur)))
7206 (setq retval (cons (list key val) retval)))))
7209 (defun gnus-url-mailto (url)
7210 ;; Send mail to someone
7211 (when (string-match "mailto:/*\\(.*\\)" url)
7212 (setq url (substring url (match-beginning 1) nil)))
7213 (let (to args subject func)
7214 (setq args (gnus-url-parse-query-string
7215 (if (string-match "^\\?" url)
7217 (if (string-match "^\\([^?]+\\)\\?\\(.*\\)" url)
7218 (concat "to=" (match-string 1 url) "&"
7219 (match-string 2 url))
7220 (concat "to=" url)))
7222 subject (cdr-safe (assoc "subject" args)))
7225 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
7228 (message-position-on-field (caar args)))
7229 (insert (gnus-replace-in-string
7230 (mapconcat 'identity (reverse (cdar args)) ", ")
7232 (setq args (cdr args)))
7235 (message-goto-subject))))
7237 (defun gnus-button-embedded-url (address)
7238 "Activate ADDRESS with `browse-url'."
7239 (browse-url (gnus-strip-whitespace address)))
7241 ;;; Next/prev buttons in the article buffer.
7243 (defvar gnus-next-page-line-format "%{%(Next page...%)%}\n")
7244 (defvar gnus-prev-page-line-format "%{%(Previous page...%)%}\n")
7246 (defvar gnus-prev-page-map
7247 (let ((map (make-sparse-keymap)))
7248 (define-key map gnus-mouse-2 'gnus-button-prev-page)
7249 (define-key map "\r" 'gnus-button-prev-page)
7252 (defvar gnus-next-page-map
7253 (let ((map (make-sparse-keymap)))
7254 (unless (>= emacs-major-version 21)
7255 ;; XEmacs doesn't care.
7256 (set-keymap-parent map gnus-article-mode-map))
7257 (define-key map gnus-mouse-2 'gnus-button-next-page)
7258 (define-key map "\r" 'gnus-button-next-page)
7261 (defun gnus-insert-prev-page-button ()
7263 (inhibit-read-only t))
7265 gnus-prev-page-line-format nil
7266 `(keymap ,gnus-prev-page-map
7268 gnus-callback gnus-article-button-prev-page
7269 article-type annotation))
7270 (widget-convert-button
7272 ;; Exclude a newline.
7275 :action 'gnus-button-prev-page
7276 :button-keymap gnus-prev-page-map)))
7278 (defun gnus-button-next-page (&optional args more-args)
7279 "Go to the next page."
7281 (let ((win (selected-window)))
7282 (select-window (gnus-get-buffer-window gnus-article-buffer t))
7283 (gnus-article-next-page)
7284 (select-window win)))
7286 (defun gnus-button-prev-page (&optional args more-args)
7287 "Go to the prev page."
7289 (let ((win (selected-window)))
7290 (select-window (gnus-get-buffer-window gnus-article-buffer t))
7291 (gnus-article-prev-page)
7292 (select-window win)))
7294 (defun gnus-insert-next-page-button ()
7296 (inhibit-read-only t))
7297 (gnus-eval-format gnus-next-page-line-format nil
7298 `(keymap ,gnus-next-page-map
7300 gnus-callback gnus-article-button-next-page
7301 article-type annotation))
7302 (widget-convert-button
7304 ;; Exclude a newline.
7307 :action 'gnus-button-next-page
7308 :button-keymap gnus-next-page-map)))
7310 (defun gnus-article-button-next-page (arg)
7311 "Go to the next page."
7313 (let ((win (selected-window)))
7314 (select-window (gnus-get-buffer-window gnus-article-buffer t))
7315 (gnus-article-next-page)
7316 (select-window win)))
7318 (defun gnus-article-button-prev-page (arg)
7319 "Go to the prev page."
7321 (let ((win (selected-window)))
7322 (select-window (gnus-get-buffer-window gnus-article-buffer t))
7323 (gnus-article-prev-page)
7324 (select-window win)))
7326 (defvar gnus-decode-header-methods
7327 '(mail-decode-encoded-word-region)
7328 "List of methods used to decode headers.
7330 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
7331 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
7332 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
7333 whose names match REGEXP.
7336 \((\"chinese\" . gnus-decode-encoded-word-region-by-guess)
7337 mail-decode-encoded-word-region
7338 (\"chinese\" . rfc1843-decode-region))
7341 (defvar gnus-decode-header-methods-cache nil)
7343 (defun gnus-multi-decode-header (start end)
7344 "Apply the functions from `gnus-encoded-word-methods' that match."
7345 (unless (and gnus-decode-header-methods-cache
7346 (eq gnus-newsgroup-name
7347 (car gnus-decode-header-methods-cache)))
7348 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
7351 (nconc gnus-decode-header-methods-cache (list x))
7352 (if (and gnus-newsgroup-name
7353 (string-match (car x) gnus-newsgroup-name))
7354 (nconc gnus-decode-header-methods-cache
7356 gnus-decode-header-methods))
7357 (let ((xlist gnus-decode-header-methods-cache))
7360 (narrow-to-region start end)
7362 (funcall (pop xlist) (point-min) (point-max))))))
7365 ;;; Treatment top-level handling.
7368 (defun gnus-treat-article (condition &optional part-number total-parts type)
7369 (let ((length (- (point-max) (point-min)))
7370 (alist gnus-treatment-function-alist)
7371 (article-goto-body-goes-to-point-min-p t)
7375 (let ((list gnus-article-treat-types))
7377 (when (string-match (pop list) type)
7378 (throw 'found t)))))))
7379 (highlightp (gnus-visual-p 'article-highlight 'highlight))
7381 (gnus-run-hooks 'gnus-part-display-hook)
7382 (dolist (elem alist)
7385 (when (gnus-buffer-live-p gnus-summary-buffer)
7386 (set-buffer gnus-summary-buffer))
7387 (symbol-value (car elem))))
7388 (when (and (or (consp val)
7390 (gnus-treat-predicate val)
7391 (or (not (get (car elem) 'highlight))
7394 (funcall (cadr elem)))))))
7396 ;; Dynamic variables.
7398 (defvar part-number)
7399 (defvar total-parts)
7404 (defun gnus-treat-predicate (val)
7411 (stringp (car val)))
7412 (apply 'gnus-or (mapcar `(lambda (s)
7413 (string-match s ,(or gnus-newsgroup-name "")))
7416 (let ((pred (pop val)))
7419 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
7421 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
7423 (not (gnus-treat-predicate (car val))))
7425 (equal (car val) type))
7427 (error "%S is not a valid predicate" pred)))))
7435 (eq part-number total-parts))
7439 (error "%S is not a valid value" val))))
7441 (defun gnus-article-encrypt-body (protocol &optional n)
7442 "Encrypt the article body."
7445 (or gnus-article-encrypt-protocol
7446 (completing-read "Encrypt protocol: "
7447 gnus-article-encrypt-protocol-alist
7449 current-prefix-arg))
7450 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
7452 (error "Can't find the encrypt protocol %s" protocol))
7453 (if (member gnus-newsgroup-name '("nndraft:delayed"
7456 (error "Can't encrypt the article in group %s"
7457 gnus-newsgroup-name))
7458 (gnus-summary-iterate n
7460 (set-buffer gnus-summary-buffer)
7461 (let ((mail-parse-charset gnus-newsgroup-charset)
7462 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
7463 (summary-buffer gnus-summary-buffer)
7465 (gnus-set-global-variables)
7466 (when (gnus-group-read-only-p)
7467 (error "The current newsgroup does not support article encrypt"))
7468 (gnus-summary-show-article t)
7470 (or (mail-header-references gnus-current-headers) ""))
7471 (set-buffer gnus-article-buffer)
7472 (let* ((inhibit-read-only t)
7474 (mapcar (lambda (field)
7475 (and (save-restriction
7476 (message-narrow-to-head)
7477 (goto-char (point-min))
7478 (search-forward field nil t))
7480 (message-narrow-to-field)
7482 (delete-region (point-min) (point-max))
7484 '("Content-Type:" "Content-Transfer-Encoding:"
7485 "Content-Disposition:"))))
7486 (message-narrow-to-head)
7487 (message-remove-header "MIME-Version")
7488 (goto-char (point-max))
7489 (setq point (point))
7490 (insert (apply 'concat headers))
7492 (narrow-to-region point (point-max))
7493 (let ((message-options message-options))
7494 (message-options-set 'message-sender user-mail-address)
7495 (message-options-set 'message-recipients user-mail-address)
7496 (message-options-set 'message-sign-encrypt 'not)
7498 (goto-char (point-min))
7499 (insert "MIME-Version: 1.0\n")
7501 (gnus-summary-edit-article-done
7502 references nil summary-buffer t))
7503 (when gnus-keep-backlog
7504 (gnus-backlog-remove-article
7505 (car gnus-article-current) (cdr gnus-article-current)))
7507 (when (get-buffer gnus-original-article-buffer)
7508 (set-buffer gnus-original-article-buffer)
7509 (setq gnus-original-article nil)))
7510 (when gnus-use-cache
7511 (gnus-cache-update-article
7512 (car gnus-article-current) (cdr gnus-article-current))))))))
7514 (defvar gnus-mime-security-button-line-format "%{%([[%t:%i]%D]%)%}\n"
7515 "The following specs can be used:
7516 %t The security MIME type
7519 %D Details if button is pressed")
7521 (defvar gnus-mime-security-button-end-line-format "%{%([[End of %t]%D]%)%}\n"
7522 "The following specs can be used:
7523 %t The security MIME type
7526 %D Details if button is pressed")
7528 (defvar gnus-mime-security-button-line-format-alist
7529 '((?t gnus-tmp-type ?s)
7530 (?i gnus-tmp-info ?s)
7531 (?d gnus-tmp-details ?s)
7532 (?D gnus-tmp-pressed-details ?s)))
7534 (defvar gnus-mime-security-button-commands
7535 '((gnus-article-press-button "\r" "Show Detail")
7539 (gnus-mime-security-save-part "o" "Save...")
7548 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
7551 (defvar gnus-mime-security-button-map
7552 (let ((map (make-sparse-keymap)))
7553 (define-key map gnus-mouse-2 'gnus-article-push-button)
7554 (define-key map gnus-down-mouse-3 'gnus-mime-security-button-menu)
7555 (dolist (c gnus-mime-security-button-commands)
7556 (define-key map (cadr c) (car c)))
7560 gnus-mime-security-button-menu gnus-mime-security-button-map
7561 "Security button menu."
7565 (unless (eq (car c) 'undefined)
7566 (vector (caddr c) (car c) :enable t)))
7567 gnus-mime-security-button-commands))))
7569 (defun gnus-mime-security-button-menu (event prefix)
7570 "Construct a context-sensitive menu of security commands."
7571 (interactive "e\nP")
7572 (save-window-excursion
7573 (let ((pos (event-start event)))
7574 (select-window (posn-window pos))
7575 (goto-char (posn-point pos))
7576 (gnus-article-check-buffer)
7577 (popup-menu gnus-mime-security-button-menu nil prefix))))
7579 (defvar gnus-mime-security-details-buffer nil)
7581 (defvar gnus-mime-security-button-pressed nil)
7583 (defvar gnus-mime-security-show-details-inline t
7584 "If non-nil, show details in the article buffer.")
7586 (defun gnus-mime-security-verify-or-decrypt (handle)
7587 (mm-remove-parts (cdr handle))
7588 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
7589 point (inhibit-read-only t))
7591 (goto-char (car region)))
7593 (narrow-to-region (point) (point))
7594 (with-current-buffer (mm-handle-multipart-original-buffer handle)
7595 (let* ((mm-verify-option 'known)
7596 (mm-decrypt-option 'known)
7597 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
7598 (unless (eq nparts (cdr handle))
7599 (mm-destroy-parts (cdr handle))
7600 (setcdr handle nparts))))
7601 (setq point (point))
7602 (gnus-mime-display-security handle)
7603 (goto-char (point-max)))
7605 (delete-region (point) (cdr region))
7606 (set-marker (car region) nil)
7607 (set-marker (cdr region) nil))
7610 (defun gnus-mime-security-show-details (handle)
7611 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
7613 (gnus-message 5 "No details.")
7614 (if gnus-mime-security-show-details-inline
7615 (let ((gnus-mime-security-button-pressed
7616 (not (get-text-property (point) 'gnus-mime-details)))
7617 (gnus-mime-security-button-line-format
7618 (get-text-property (point) 'gnus-line-format))
7619 (inhibit-read-only t))
7621 (while (eq (get-text-property (point) 'gnus-line-format)
7622 gnus-mime-security-button-line-format)
7626 (narrow-to-region (point) (point))
7627 (gnus-insert-mime-security-button handle))
7628 (delete-region (point)
7629 (or (text-property-not-all
7632 gnus-mime-security-button-line-format)
7635 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
7636 (with-current-buffer gnus-mime-security-details-buffer
7639 (setq gnus-mime-security-details-buffer
7640 (gnus-get-buffer-create "*MIME Security Details*")))
7641 (with-current-buffer gnus-mime-security-details-buffer
7643 (goto-char (point-min)))
7644 (pop-to-buffer gnus-mime-security-details-buffer)))))
7646 (defun gnus-mime-security-press-button (handle)
7648 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
7649 (gnus-mime-security-show-details handle)
7650 (gnus-mime-security-verify-or-decrypt handle))))
7652 (defun gnus-insert-mime-security-button (handle &optional displayed)
7653 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
7656 (or (nth 2 (assoc protocol mm-verify-function-alist))
7657 (nth 2 (assoc protocol mm-decrypt-function-alist))
7659 (if (equal (car handle) "multipart/signed")
7660 " Signed" " Encrypted")
7663 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
7666 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
7667 gnus-tmp-pressed-details
7669 (setq gnus-tmp-details
7670 (if gnus-tmp-details
7671 (concat "\n" gnus-tmp-details)
7673 (setq gnus-tmp-pressed-details
7674 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
7679 gnus-mime-security-button-line-format
7680 gnus-mime-security-button-line-format-alist
7681 `(keymap ,gnus-mime-security-button-map
7682 gnus-callback gnus-mime-security-press-button
7683 gnus-line-format ,gnus-mime-security-button-line-format
7684 gnus-mime-details ,gnus-mime-security-button-pressed
7685 article-type annotation
7688 ;; Exclude a newline.
7691 (widget-convert-button
7694 :action 'gnus-widget-press-button
7695 :button-keymap gnus-mime-security-button-map
7697 (lambda (widget/window &optional overlay pos)
7698 ;; Needed to properly clear the message due to a bug in
7699 ;; wid-edit (XEmacs only).
7700 (when (boundp 'help-echo-owns-message)
7701 (setq help-echo-owns-message t))
7703 "%S: show detail; %S: more options"
7704 (aref gnus-mouse-2 0)
7705 (aref gnus-down-mouse-3 0))))))
7707 (defun gnus-mime-display-security (handle)
7709 (narrow-to-region (point) (point))
7710 (unless (gnus-unbuttonized-mime-type-p (car handle))
7711 (gnus-insert-mime-security-button handle))
7712 (gnus-mime-display-part (cadr handle))
7715 (unless (gnus-unbuttonized-mime-type-p (car handle))
7716 (let ((gnus-mime-security-button-line-format
7717 gnus-mime-security-button-end-line-format))
7718 (gnus-insert-mime-security-button handle)))
7719 (mm-set-handle-multipart-parameter
7721 (cons (set-marker (make-marker) (point-min))
7722 (set-marker (make-marker) (point-max))))))
7724 (defun gnus-mime-security-run-function (function)
7725 "Run FUNCTION with the security part under point."
7726 (gnus-article-check-buffer)
7727 (let ((data (get-text-property (point) 'gnus-data))
7729 (when (and (stringp (car-safe data))
7730 (setq buffer (mm-handle-multipart-original-buffer data))
7731 (setq handle (cadr data)))
7732 (if (bufferp (mm-handle-buffer handle))
7734 (setq handle (cons buffer (copy-sequence (cdr handle))))
7735 (mm-handle-set-undisplayer handle nil))
7736 (setq handle (mm-make-handle
7738 (mm-handle-multipart-ctl-parameter handle 'protocol)
7739 nil nil nil nil nil nil)))
7740 (funcall function handle))))
7742 (defun gnus-mime-security-save-part ()
7743 "Save the security part under point."
7745 (gnus-mime-security-run-function 'mm-save-part))
7747 (defun gnus-mime-security-pipe-part ()
7748 "Pipe the security part under point to a process."
7750 (gnus-mime-security-run-function 'mm-pipe-part))
7756 (run-hooks 'gnus-art-load-hook)
7758 ;;; arch-tag: 2654516f-6279-48f9-a83b-05c1fa450c33
7759 ;;; gnus-art.el ends here