1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996-2015 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
30 (defvar w3m-minor-mode-map)
47 (autoload 'gnus-msg-mail "gnus-msg" nil t)
48 (autoload 'gnus-button-mailto "gnus-msg")
49 (autoload 'gnus-button-reply "gnus-msg" nil t)
50 (autoload 'parse-time-string "parse-time" nil nil)
51 (autoload 'ansi-color-apply-on-region "ansi-color")
52 (autoload 'mm-url-insert-file-contents-external "mm-url")
53 (autoload 'mm-extern-cache-contents "mm-extern")
55 (defgroup gnus-article nil
57 :link '(custom-manual "(gnus)Article Buffer")
60 (defgroup gnus-article-treat nil
61 "Treating article parts."
62 :link '(custom-manual "(gnus)Article Hiding")
65 (defgroup gnus-article-hiding nil
66 "Hiding article parts."
67 :link '(custom-manual "(gnus)Article Hiding")
70 (defgroup gnus-article-highlight nil
71 "Article highlighting."
72 :link '(custom-manual "(gnus)Article Highlighting")
76 (defgroup gnus-article-signature nil
78 :link '(custom-manual "(gnus)Article Signature")
81 (defgroup gnus-article-headers nil
83 :link '(custom-manual "(gnus)Hiding Headers")
86 (defgroup gnus-article-washing nil
87 "Special commands on articles."
88 :link '(custom-manual "(gnus)Article Washing")
91 (defgroup gnus-article-emphasis nil
92 "Fontisizing articles."
93 :link '(custom-manual "(gnus)Article Fontisizing")
96 (defgroup gnus-article-saving nil
98 :link '(custom-manual "(gnus)Saving Articles")
101 (defgroup gnus-article-mime nil
102 "Worshiping the MIME wonder."
103 :link '(custom-manual "(gnus)Using MIME")
104 :group 'gnus-article)
106 (defgroup gnus-article-buttons nil
107 "Pushable buttons in the article buffer."
108 :link '(custom-manual "(gnus)Article Buttons")
109 :group 'gnus-article)
111 (defgroup gnus-article-various nil
112 "Other article options."
113 :link '(custom-manual "(gnus)Misc Article")
114 :group 'gnus-article)
116 (defcustom gnus-ignored-headers
119 (concat "^" header ":"))
120 '("Path" "Expires" "Date-Received" "References" "Xref" "Lines"
121 "Relay-Version" "Message-ID" "Approved" "Sender" "Received"
122 "X-UIDL" "MIME-Version" "Return-Path" "In-Reply-To"
123 "Content-Type" "Content-Transfer-Encoding" "X-WebTV-Signature"
124 "X-MimeOLE" "X-MSMail-Priority" "X-Priority" "X-Loop"
125 "X-Authentication-Warning" "X-MIME-Autoconverted" "X-Face"
126 "X-Attribution" "X-Originating-IP" "Delivered-To"
127 "NNTP-[-A-Za-z]+" "Distribution" "X-no-archive" "X-Trace"
128 "X-Complaints-To" "X-NNTP-Posting-Host" "X-Orig.*"
129 "Abuse-Reports-To" "Cache-Post-Path" "X-Article-Creation-Date"
130 "X-Poster" "X-Mail2News-Path" "X-Server-Date" "X-Cache"
131 "Originator" "X-Problems-To" "X-Auth-User" "X-Post-Time"
132 "X-Admin" "X-UID" "Resent-[-A-Za-z]+" "X-Mailing-List"
133 "Precedence" "Original-[-A-Za-z]+" "X-filename" "X-Orcpt"
134 "Old-Received" "X-Pgp" "X-Auth" "X-From-Line"
135 "X-Gnus-Article-Number" "X-Majordomo" "X-Url" "X-Sender"
136 "MBOX-Line" "Priority" "X400-[-A-Za-z]+"
137 "Status" "X-Gnus-Mail-Source" "Cancel-Lock"
138 "X-FTN" "X-EXP32-SerialNo" "Encoding" "Importance"
139 "Autoforwarded" "Original-Encoded-Information-Types" "X-Ya-Pop3"
140 "X-Face-Version" "X-Vms-To" "X-ML-NAME" "X-ML-COUNT"
141 "Mailing-List" "X-finfo" "X-md5sum" "X-md5sum-Origin"
142 "X-Sun-Charset" "X-Accept-Language" "X-Envelope-Sender"
143 "List-[A-Za-z]+" "X-Listprocessor-Version"
144 "X-Received" "X-Distribute" "X-Sequence" "X-Juno-Line-Breaks"
145 "X-Notes-Item" "X-MS-TNEF-Correlator" "x-uunet-gateway"
146 "X-Received" "Content-length" "X-precedence"
147 "X-Authenticated-User" "X-Comment" "X-Report" "X-Abuse-Info"
148 "X-HTTP-Proxy" "X-Mydeja-Info" "X-Copyright" "X-No-Markup"
149 "X-Abuse-Info" "X-From_" "X-Accept-Language" "Errors-To"
150 "X-BeenThere" "X-Mailman-Version" "List-Help" "List-Post"
151 "List-Subscribe" "List-Id" "List-Unsubscribe" "List-Archive"
152 "X-Content-length" "X-Posting-Agent" "Original-Received"
153 "X-Request-PGP" "X-Fingerprint" "X-WRIEnvto" "X-WRIEnvfrom"
154 "X-Virus-Scanned" "X-Delivery-Agent" "Posted-Date" "X-Gateway"
155 "X-Local-Origin" "X-Local-Destination" "X-UserInfo1"
156 "X-Received-Date" "X-Hashcash" "Face" "X-DMCA-Notifications"
157 "X-Abuse-and-DMCA-Info" "X-Postfilter" "X-Gpg-.*" "X-Disclaimer"
158 "Envelope-To" "X-Spam-Score" "System-Type" "X-Injected-Via-Gmane"
159 "X-Gmane-NNTP-Posting-Host" "Jabber-ID" "Archived-At"
160 "Envelope-Sender" "Envelope-Recipients"))
161 "*All headers that start with this regexp will be hidden.
162 This variable can also be a list of regexps of headers to be ignored.
163 If `gnus-visible-headers' is non-nil, this variable will be ignored."
164 :type '(choice regexp
166 :group 'gnus-article-hiding)
168 (defcustom gnus-visible-headers
169 "^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:"
170 "*All headers that do not match this regexp will be hidden.
171 This variable can also be a list of regexp of headers to remain visible.
172 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
174 (repeat :value-to-internal (lambda (widget value)
175 (custom-split-regexp-maybe value))
176 :match (lambda (widget value)
178 (widget-editable-list-match widget value)))
180 (const :tag "Use gnus-ignored-headers" nil)
182 :group 'gnus-article-hiding)
184 (defcustom gnus-sorted-header-list
185 '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:"
186 "^Followup-To:" "^To:" "^Cc:" "^Date:" "^Organization:")
187 "*This variable is a list of regular expressions.
188 If it is non-nil, headers that match the regular expressions will
189 be placed first in the article buffer in the sequence specified by
191 :type '(repeat regexp)
192 :group 'gnus-article-hiding)
194 (defcustom gnus-boring-article-headers '(empty followup-to reply-to)
195 "Headers that are only to be displayed if they have interesting data.
196 Possible values in this list are:
198 'empty Headers with no content.
199 'newsgroups Newsgroup identical to Gnus group.
200 'to-address To identical to To-address.
201 'to-list To identical to To-list.
202 'cc-list CC identical to To-list.
203 'followup-to Followup-to identical to Newsgroups.
204 'reply-to Reply-to identical to From.
205 'date Date less than four days old.
206 'long-to To and/or Cc longer than 1024 characters.
207 'many-to Multiple To and/or Cc."
208 :type '(set (const :tag "Headers with no content." empty)
209 (const :tag "Newsgroups identical to Gnus group." newsgroups)
210 (const :tag "To identical to To-address." to-address)
211 (const :tag "To identical to To-list." to-list)
212 (const :tag "CC identical to To-list." cc-list)
213 (const :tag "Followup-to identical to Newsgroups." followup-to)
214 (const :tag "Reply-to identical to From." reply-to)
215 (const :tag "Date less than four days old." date)
216 (const :tag "To and/or Cc longer than 1024 characters." long-to)
217 (const :tag "Multiple To and/or Cc headers." many-to))
218 :group 'gnus-article-hiding)
220 (defcustom gnus-article-skip-boring nil
221 "Skip over text that is not worth reading.
222 By default, if you set this t, then Gnus will display citations and
223 signatures, but will never scroll down to show you a page consisting
224 only of boring text. Boring text is controlled by
225 `gnus-article-boring-faces'."
228 :group 'gnus-article-hiding)
230 (defcustom gnus-signature-separator '("^-- $" "^-- *$")
231 "Regexp matching signature separator.
232 This can also be a list of regexps. In that case, it will be checked
233 from head to tail looking for a separator. Searches will be done from
234 the end of the buffer."
235 :type '(choice :format "%{%t%}: %[Value Menu%]\n%v"
237 (repeat :tag "List of regexp" regexp))
238 :group 'gnus-article-signature)
240 (defcustom gnus-signature-limit nil
241 "Provide a limit to what is considered a signature.
242 If it is a number, no signature may not be longer (in characters) than
243 that number. If it is a floating point number, no signature may be
244 longer (in lines) than that number. If it is a function, the function
245 will be called without any parameters, and if it returns nil, there is
246 no signature in the buffer. If it is a string, it will be used as a
247 regexp. If it matches, the text in question is not a signature.
249 This can also be a list of the above values."
250 :type '(choice (const nil)
254 (regexp :value ".*"))
255 :group 'gnus-article-signature)
257 (defcustom gnus-hidden-properties
258 (if (featurep 'xemacs)
259 ;; `intangible' is evil, but I keep it here in case it's useful.
260 '(invisible t intangible t)
261 ;; Emacs's command loop moves point out of invisible text anyway, so
262 ;; `intangible' is clearly not needed there.
264 "Property list to use for hiding text."
266 :group 'gnus-article-hiding)
268 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
269 ;; frames in a session.
270 (defcustom gnus-article-x-face-command
271 (if (featurep 'xemacs)
272 (if (or (gnus-image-type-available-p 'xface)
273 (gnus-image-type-available-p 'pbm))
274 'gnus-display-x-face-in-from
276 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
277 ; uncompface; } | icontopbm | ee -")
278 (if (gnus-image-type-available-p 'pbm)
279 'gnus-display-x-face-in-from
281 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
282 ; uncompface; } | icontopbm | display -"))
283 "*String or function to be executed to display an X-Face header.
284 If it is a string, the command will be executed in a sub-shell
285 asynchronously. The compressed face will be piped to this command."
286 :type `(choice string
287 (function-item gnus-display-x-face-in-from)
291 :group 'gnus-article-washing)
293 (defcustom gnus-article-x-face-too-ugly nil
294 "Regexp matching posters whose face shouldn't be shown automatically."
295 :type '(choice regexp (const nil))
296 :group 'gnus-article-washing)
298 (defcustom gnus-article-banner-alist nil
299 "Banner alist for stripping.
301 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
303 :type '(repeat (cons symbol regexp))
304 :group 'gnus-article-washing)
306 (gnus-define-group-parameter
309 "Alist of regexps (to match group names) and banner."
310 :variable-group gnus-article-washing
312 '(choice :tag "Banner"
314 (const :tag "Remove signature" signature)
315 (symbol :tag "Item in `gnus-article-banner-alist'" none)
317 (const :tag "None" nil))
319 "If non-nil, specify how to remove `banners' from articles.
321 Symbol `signature' means to remove signatures delimited by
322 `gnus-signature-separator'. Any other symbol is used to look up a
323 regular expression to match the banner in `gnus-article-banner-alist'.
324 A string is used as a regular expression to match the banner
327 (defcustom gnus-article-address-banner-alist nil
328 "Alist of mail addresses and banners.
329 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
330 to match a mail address in the From: header, BANNER is one of a symbol
331 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
332 If ADDRESS matches author's mail address, it will remove things like
333 advertisements. For example:
335 \((\"@yoo-hoo\\\\.co\\\\.jp\\\\'\" . \"\\n_+\\nDo You Yoo-hoo!\\\\?\\n.*\\n.*\\n\"))
339 (regexp :tag "Address")
340 (choice :tag "Banner" :value nil
341 (const :tag "Remove signature" signature)
342 (symbol :tag "Item in `gnus-article-banner-alist'" none)
344 (const :tag "None" nil))))
346 :group 'gnus-article-washing)
348 (defmacro gnus-emphasis-custom-with-format (&rest body)
350 \\(\\s-\\|^\\|\\=\\|[-\"]\\|\\s(\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\
351 \\(\\([-,.;:!?\"]\\|\\s)\\)+\\s-\\|[?!.]\\s-\\|\\s)\\|\\s-\\)"))
354 (defun gnus-emphasis-custom-value-to-external (value)
355 (gnus-emphasis-custom-with-format
356 (if (consp (car value))
357 (list (format format (car (car value)) (cdr (car value)))
359 (if (nth 1 value) 2 3)
363 (defun gnus-emphasis-custom-value-to-internal (value)
364 (gnus-emphasis-custom-with-format
365 (let ((regexp (concat "\\`"
366 (format (regexp-quote format)
367 "\\([^()]+\\)" "\\([^()]+\\)")
370 (if (string-match regexp (setq pattern (car value)))
371 (list (cons (match-string 1 pattern) (match-string 2 pattern))
376 (defcustom gnus-emphasis-alist
378 '(("\\*" "\\*" bold nil 2)
381 ("_/" "/_" underline-italic)
382 ("_\\*" "\\*_" underline-bold)
383 ("\\*/" "/\\*" bold-italic)
384 ("_\\*/" "/\\*_" underline-bold-italic))))
386 (gnus-emphasis-custom-with-format
387 (mapcar (lambda (spec)
388 (list (format format (car spec) (cadr spec))
391 (intern (format "gnus-emphasis-%s" (nth 2 spec)))))
393 '(;; I've never seen anyone use this strikethru convention whereas I've
394 ;; several times seen it triggered by normal text. --Stef
395 ;; Miles suggests that this form is sometimes used but for italics,
396 ;; so maybe we should map it to `italic'.
397 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
398 ;; 2 3 gnus-emphasis-strikethru)
399 ("\\(\\s-\\|^\\)\\(_\\(\\(\\w\\|_[^_]\\)+\\)_\\)\\(\\s-\\|[?!.,;]\\)"
400 2 3 gnus-emphasis-underline))))
401 "*Alist that says how to fontify certain phrases.
402 Each item looks like this:
404 (\"_\\\\(\\\\w+\\\\)_\" 0 1 'underline)
406 The first element is a regular expression to be matched. The second
407 is a number that says what regular expression grouping used to find
408 the entire emphasized word. The third is a number that says what
409 regexp grouping should be displayed and highlighted. The fourth
410 is the face used for highlighting."
414 :format "%[Customizing Style%]\n%v"
416 (group :tag "Default"
417 :value ("" 0 0 default)
420 (let ((value (widget-get
421 (cadr (widget-get (widget-get widget :parent)
424 (if (not (eq (nth 2 value) 'default))
428 (gnus-emphasis-custom-value-to-external value))))
429 (widget-group-value-create widget))
431 (integer :format "Match group: %v")
432 (integer :format "Emphasize group: %v")
435 :value (("_" . "_") nil default)
437 (regexp :format "Start regexp: %v")
438 (regexp :format "End regexp: %v"))
439 (boolean :format "Show start and end patterns: %[%v%]\n"
440 :on " On " :off " Off ")
442 :get (lambda (symbol)
443 (mapcar 'gnus-emphasis-custom-value-to-internal
444 (default-value symbol)))
445 :set (lambda (symbol value)
446 (set-default symbol (mapcar 'gnus-emphasis-custom-value-to-external
448 :group 'gnus-article-emphasis)
450 (defcustom gnus-emphasize-whitespace-regexp "^[ \t]+\\|[ \t]*\n"
451 "A regexp to describe whitespace which should not be emphasized.
452 Typical values are \"^[ \\t]+\\\\|[ \\t]*\\n\" and \"[ \\t]+\\\\|[ \\t]*\\n\".
453 The former avoids underlining of leading and trailing whitespace,
454 and the latter avoids underlining any whitespace at all."
456 :group 'gnus-article-emphasis
459 (defface gnus-emphasis-bold '((t (:bold t)))
460 "Face used for displaying strong emphasized text (*word*)."
461 :group 'gnus-article-emphasis)
463 (defface gnus-emphasis-italic '((t (:italic t)))
464 "Face used for displaying italic emphasized text (/word/)."
465 :group 'gnus-article-emphasis)
467 (defface gnus-emphasis-underline '((t (:underline t)))
468 "Face used for displaying underlined emphasized text (_word_)."
469 :group 'gnus-article-emphasis)
471 (defface gnus-emphasis-underline-bold '((t (:bold t :underline t)))
472 "Face used for displaying underlined bold emphasized text (_*word*_)."
473 :group 'gnus-article-emphasis)
475 (defface gnus-emphasis-underline-italic '((t (:italic t :underline t)))
476 "Face used for displaying underlined italic emphasized text (_/word/_)."
477 :group 'gnus-article-emphasis)
479 (defface gnus-emphasis-bold-italic '((t (:bold t :italic t)))
480 "Face used for displaying bold italic emphasized text (/*word*/)."
481 :group 'gnus-article-emphasis)
483 (defface gnus-emphasis-underline-bold-italic
484 '((t (:bold t :italic t :underline t)))
485 "Face used for displaying underlined bold italic emphasized text.
486 Example: (_/*word*/_)."
487 :group 'gnus-article-emphasis)
489 (defface gnus-emphasis-strikethru (if (featurep 'xemacs)
490 '((t (:strikethru t)))
491 '((t (:strike-through t))))
492 "Face used for displaying strike-through text (-word-)."
493 :group 'gnus-article-emphasis)
495 (defface gnus-emphasis-highlight-words
496 '((t (:background "black" :foreground "yellow")))
497 "Face used for displaying highlighted words."
498 :group 'gnus-article-emphasis)
500 (defcustom gnus-article-time-format "%a, %d %b %Y %T %Z"
501 "Format for display of Date headers in article bodies.
502 See `format-time-string' for the possible values.
504 The variable can also be function, which should return a complete Date
505 header. The function is called with one argument, the time, which can
506 be fed to `format-time-string'."
507 :type '(choice string function)
508 :link '(custom-manual "(gnus)Article Date")
509 :group 'gnus-article-washing)
511 (defcustom gnus-save-all-headers t
512 "*If non-nil, don't remove any headers before saving.
513 This will be overridden by the `:headers' property that the symbol of
514 the saver function, which is specified by `gnus-default-article-saver',
516 :group 'gnus-article-saving
519 (defcustom gnus-prompt-before-saving 'always
520 "*This variable says how much prompting is to be done when saving articles.
521 If it is nil, no prompting will be done, and the articles will be
522 saved to the default files. If this variable is `always', each and
523 every article that is saved will be preceded by a prompt, even when
524 saving large batches of articles. If this variable is neither nil not
525 `always', there the user will be prompted once for a file name for
526 each invocation of the saving commands."
527 :group 'gnus-article-saving
528 :type '(choice (item always)
529 (item :tag "never" nil)
530 (sexp :tag "once" :format "%t\n" :value t)))
532 (defcustom gnus-saved-headers gnus-visible-headers
533 "Headers to keep if `gnus-save-all-headers' is nil.
534 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
535 If that variable is nil, however, all headers that match this regexp
536 will be kept while the rest will be deleted before saving. This and
537 `gnus-save-all-headers' will be overridden by the `:headers' property
538 that the symbol of the saver function, which is specified by
539 `gnus-default-article-saver', might have."
540 :group 'gnus-article-saving
543 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
544 (defcustom gnus-default-article-saver 'gnus-summary-save-in-rmail
545 "A function to save articles in your favorite format.
546 The function will be called by way of the `gnus-summary-save-article'
547 command, and friends such as `gnus-summary-save-article-rmail'.
549 Gnus provides the following functions:
551 * gnus-summary-save-in-rmail (Rmail format)
552 * gnus-summary-save-in-mail (Unix mail format)
553 * gnus-summary-save-in-folder (MH folder)
554 * gnus-summary-save-in-file (article format)
555 * gnus-summary-save-body-in-file (article body)
556 * gnus-summary-save-in-vm (use VM's folder format)
557 * gnus-summary-write-to-file (article format -- overwrite)
558 * gnus-summary-write-body-to-file (article body -- overwrite)
559 * gnus-summary-save-in-pipe (article format)
561 The symbol of each function may have the following properties:
564 The value non-nil means save decoded articles. This is meaningful
565 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
566 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
567 `gnus-summary-save-in-pipe'.
570 The value specifies an alternative function which appends, not
571 overwrites, articles to a file. This implies that when saving many
572 articles at a time, `gnus-prompt-before-saving' is bound to t and all
573 articles are saved in a single file. This is meaningful only with
574 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
577 The value specifies the symbol of a variable of which the value
578 specifies headers to be saved. If it is omitted,
579 `gnus-save-all-headers' and `gnus-saved-headers' control what
580 headers should be saved."
581 :group 'gnus-article-saving
582 :type '(radio (function-item gnus-summary-save-in-rmail)
583 (function-item gnus-summary-save-in-mail)
584 (function-item gnus-summary-save-in-folder)
585 (function-item gnus-summary-save-in-file)
586 (function-item gnus-summary-save-body-in-file)
587 (function-item gnus-summary-save-in-vm)
588 (function-item gnus-summary-write-to-file)
589 (function-item gnus-summary-write-body-to-file)
590 (function-item gnus-summary-save-in-pipe)
593 (defcustom gnus-article-save-coding-system
594 (or (and (mm-coding-system-p 'utf-8) 'utf-8)
595 (and (mm-coding-system-p 'iso-2022-7bit) 'iso-2022-7bit)
596 (and (mm-coding-system-p 'emacs-mule) 'emacs-mule)
597 (and (mm-coding-system-p 'escape-quoted) 'escape-quoted))
598 "Coding system used to save decoded articles to a file.
600 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
601 which can safely encode any characters in text. This is used by the
604 * gnus-summary-save-article-file
605 * gnus-summary-save-article-body-file
606 * gnus-summary-write-article-file
607 * gnus-summary-write-article-body-file
609 and the functions to which you may set `gnus-default-article-saver':
611 * gnus-summary-save-in-file
612 * gnus-summary-save-body-in-file
613 * gnus-summary-write-to-file
614 * gnus-summary-write-body-to-file
616 Those commands and functions save just text displayed in the article
617 buffer to a file if the value of this variable is non-nil. Note that
618 buttonized MIME parts will be lost in a saved file in that case.
619 Otherwise, raw articles will be saved."
620 :group 'gnus-article-saving
622 :format "%{%t%}:\n %[Value Menu%] %v"
623 (const :tag "Save raw articles" nil)
626 (lambda (arg) (if (mm-coding-system-p (nth 3 arg)) arg))
627 '((const :tag "UTF-8" utf-8)
628 (const :tag "iso-2022-7bit" iso-2022-7bit)
629 (const :tag "Emacs internal" emacs-mule)
630 (const :tag "escape-quoted" escape-quoted))))
631 (symbol :tag "Coding system")))
633 (defcustom gnus-rmail-save-name 'gnus-plain-save-name
634 "A function generating a file name to save articles in Rmail format.
635 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
636 :group 'gnus-article-saving
639 (defcustom gnus-mail-save-name 'gnus-plain-save-name
640 "A function generating a file name to save articles in Unix mail format.
641 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
642 :group 'gnus-article-saving
645 (defcustom gnus-folder-save-name 'gnus-folder-save-name
646 "A function generating a file name to save articles in MH folder.
647 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
648 :group 'gnus-article-saving
651 (defcustom gnus-file-save-name 'gnus-numeric-save-name
652 "A function generating a file name to save articles in article format.
653 The function is called with NEWSGROUP, HEADERS, and optional
655 :group 'gnus-article-saving
658 (defcustom gnus-split-methods
659 '((gnus-article-archive-name)
660 (gnus-article-nndoc-name))
661 "*Variable used to suggest where articles are to be saved.
662 For instance, if you would like to save articles related to Gnus in
663 the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
664 you could set this variable to something like:
666 '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
667 (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
669 This variable is an alist where the key is the match and the
670 value is a list of possible files to save in if the match is
673 If the match is a string, it is used as a regexp match on the
674 article. If the match is a symbol, that symbol will be funcalled
675 from the buffer of the article to be saved with the newsgroup as the
676 parameter. If it is a list, it will be evalled in the same buffer.
678 If this form or function returns a string, this string will be used as a
679 possible file name; and if it returns a non-nil list, that list will be
680 used as possible file names."
681 :group 'gnus-article-saving
682 :type '(repeat (choice (list :value (fun) function)
683 (cons :value ("" "") regexp (repeat string))
686 (defcustom gnus-page-delimiter "^\^L"
687 "*Regexp describing what to use as article page delimiters.
688 The default value is \"^\^L\", which is a form linefeed at the
689 beginning of a line."
691 :group 'gnus-article-various)
693 (defcustom gnus-article-mode-line-format "Gnus: %g %S%m"
694 "*The format specification for the article mode line.
695 See `gnus-summary-mode-line-format' for a closer description.
697 The following additional specs are available:
699 %w The article washing status.
700 %m The number of MIME parts in the article."
703 :group 'gnus-article-various)
705 (defcustom gnus-article-mode-hook nil
706 "*A hook for Gnus article mode."
708 :group 'gnus-article-various)
710 (when (featurep 'xemacs)
711 ;; Extracted from gnus-xmas-define in order to preserve user settings
712 (when (fboundp 'turn-off-scroll-in-place)
713 (add-hook 'gnus-article-mode-hook 'turn-off-scroll-in-place))
714 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
715 (add-hook 'gnus-article-mode-hook 'gnus-xmas-article-menu-add))
717 (defcustom gnus-article-menu-hook nil
718 "*Hook run after the creation of the article mode menu."
720 :group 'gnus-article-various)
722 (defcustom gnus-article-prepare-hook nil
723 "*A hook called after an article has been prepared in the article buffer."
725 :group 'gnus-article-various)
727 (defcustom gnus-copy-article-ignored-headers nil
728 "List of headers to be removed when copying an article.
729 Each element is a regular expression."
730 :version "23.1" ;; No Gnus
731 :type '(repeat regexp)
732 :group 'gnus-article-various)
734 (make-obsolete-variable 'gnus-article-hide-pgp-hook nil
735 "Gnus 5.10 (Emacs 22.1)")
738 '((t (:weight bold)))
739 "Face used for highlighting a button in the article buffer."
740 :group 'gnus-article-buttons)
742 (defcustom gnus-article-button-face 'gnus-button
743 "Face used for highlighting buttons in the article buffer.
745 An article button is a piece of text that you can activate by pressing
746 `RET' or `mouse-2' above it."
748 :group 'gnus-article-buttons)
750 (defcustom gnus-article-mouse-face 'highlight
751 "Face used for mouse highlighting in the article buffer.
753 Article buttons will be displayed in this face when the cursor is
756 :group 'gnus-article-buttons)
758 (defcustom gnus-signature-face 'gnus-signature
759 "Face used for highlighting a signature in the article buffer.
760 Obsolete; use the face `gnus-signature' for customizations instead."
762 :group 'gnus-article-highlight
763 :group 'gnus-article-signature)
765 (defface gnus-signature
768 "Face used for highlighting a signature in the article buffer."
769 :group 'gnus-article-highlight
770 :group 'gnus-article-signature)
771 ;; backward-compatibility alias
772 (put 'gnus-signature-face 'face-alias 'gnus-signature)
773 (put 'gnus-signature-face 'obsolete-face "22.1")
775 (defface gnus-header-from
778 (:foreground "PaleGreen1"))
781 (:foreground "red3"))
784 "Face used for displaying from headers."
785 :group 'gnus-article-headers
786 :group 'gnus-article-highlight)
787 ;; backward-compatibility alias
788 (put 'gnus-header-from-face 'face-alias 'gnus-header-from)
789 (put 'gnus-header-from-face 'obsolete-face "22.1")
791 (defface gnus-header-subject
794 (:foreground "SeaGreen1"))
797 (:foreground "red4"))
799 (:bold t :italic t)))
800 "Face used for displaying subject headers."
801 :group 'gnus-article-headers
802 :group 'gnus-article-highlight)
803 ;; backward-compatibility alias
804 (put 'gnus-header-subject-face 'face-alias 'gnus-header-subject)
805 (put 'gnus-header-subject-face 'obsolete-face "22.1")
807 (defface gnus-header-newsgroups
810 (:foreground "yellow" :italic t))
813 (:foreground "MidnightBlue" :italic t))
816 "Face used for displaying newsgroups headers.
817 In the default setup this face is only used for crossposted
819 :group 'gnus-article-headers
820 :group 'gnus-article-highlight)
821 ;; backward-compatibility alias
822 (put 'gnus-header-newsgroups-face 'face-alias 'gnus-header-newsgroups)
823 (put 'gnus-header-newsgroups-face 'obsolete-face "22.1")
825 (defface gnus-header-name
828 (:foreground "SpringGreen2"))
831 (:foreground "maroon"))
834 "Face used for displaying header names."
835 :group 'gnus-article-headers
836 :group 'gnus-article-highlight)
837 ;; backward-compatibility alias
838 (put 'gnus-header-name-face 'face-alias 'gnus-header-name)
839 (put 'gnus-header-name-face 'obsolete-face "22.1")
841 (defface gnus-header-content
844 (:foreground "SpringGreen1" :italic t))
847 (:foreground "indianred4" :italic t))
849 (:italic t))) "Face used for displaying header content."
850 :group 'gnus-article-headers
851 :group 'gnus-article-highlight)
852 ;; backward-compatibility alias
853 (put 'gnus-header-content-face 'face-alias 'gnus-header-content)
854 (put 'gnus-header-content-face 'obsolete-face "22.1")
856 (defcustom gnus-header-face-alist
857 '(("From" nil gnus-header-from)
858 ("Subject" nil gnus-header-subject)
859 ("Newsgroups:.*," nil gnus-header-newsgroups)
860 ("" gnus-header-name gnus-header-content))
861 "*Controls highlighting of article headers.
863 An alist of the form (HEADER NAME CONTENT).
865 HEADER is a regular expression which should match the name of a
866 header and NAME and CONTENT are either face names or nil.
868 The name of each header field will be displayed using the face
869 specified by the first element in the list where HEADER matches
870 the header name and NAME is non-nil. Similarly, the content will
871 be displayed by the first non-nil matching CONTENT face."
872 :group 'gnus-article-headers
873 :group 'gnus-article-highlight
874 :type '(repeat (list (regexp :tag "Header")
876 (item :tag "skip" nil)
877 (face :value default))
878 (choice :tag "Content"
879 (item :tag "skip" nil)
880 (face :value default)))))
882 (defcustom gnus-face-properties-alist (if (featurep 'xemacs)
883 '((xface . (:face gnus-x-face)))
884 '((pbm . (:face gnus-x-face))
886 "Alist of image types and properties applied to Face and X-Face images.
889 ;; Specify the altitude of Face images in the From header.
890 \(setq gnus-face-properties-alist
891 '((pbm . (:face gnus-x-face :ascent 80))
892 (png . (:ascent 80))))
894 ;; Show Face images as pressed buttons.
895 \(setq gnus-face-properties-alist
896 '((pbm . (:face gnus-x-face :relief -2))
897 (png . (:relief -2))))
899 See the manual for the valid properties for various image types.
900 Currently, `pbm' is used for X-Face images and `png' is used for Face
901 images in Emacs. Only the `:face' property is effective on the `xface'
902 image type in XEmacs if it is built with the libcompface library."
903 :version "23.1" ;; No Gnus
904 :group 'gnus-article-headers
905 :type '(repeat (cons :format "%v" (symbol :tag "Image type") plist)))
907 (defcustom gnus-article-decode-hook
908 '(article-decode-charset article-decode-encoded-words
909 article-decode-group-name article-decode-idna-rhs)
910 "*Hook run to decode charsets in articles."
911 :group 'gnus-article-headers
914 (defcustom gnus-display-mime-function 'gnus-display-mime
915 "Function to display MIME articles."
916 :group 'gnus-article-mime
919 (defvar gnus-decode-header-function 'mail-decode-encoded-word-region
920 "Function used to decode headers.")
922 (defvar gnus-decode-address-function 'mail-decode-encoded-address-region
923 "Function used to decode addresses.")
925 (defvar gnus-article-dumbquotes-map
945 "Table for MS-to-Latin1 translation.")
947 (defcustom gnus-ignored-mime-types nil
948 "List of MIME types that should be ignored by Gnus."
950 :group 'gnus-article-mime
951 :type '(repeat regexp))
953 (defcustom gnus-unbuttonized-mime-types '(".*/.*")
954 "List of MIME types that should not be given buttons when rendered inline.
955 See also `gnus-buttonized-mime-types' which may override this variable.
956 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
958 :group 'gnus-article-mime
959 :type '(repeat regexp))
961 (defcustom gnus-buttonized-mime-types nil
962 "List of MIME types that should be given buttons when rendered inline.
963 If set, this variable overrides `gnus-unbuttonized-mime-types'.
964 To see e.g. security buttons you could set this to
965 `(\"multipart/signed\")'. You could also add \"multipart/alternative\" to
966 this list to display radio buttons that allow you to choose one of two
967 media types those mails include. See also `mm-discouraged-alternatives'.
968 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
970 :group 'gnus-article-mime
971 :type '(repeat regexp))
973 (defcustom gnus-inhibit-mime-unbuttonizing nil
974 "If non-nil, all MIME parts get buttons.
975 When nil (the default value), then some MIME parts do not get buttons,
976 as described by the variables `gnus-buttonized-mime-types' and
977 `gnus-unbuttonized-mime-types'."
979 :group 'gnus-article-mime
982 (defcustom gnus-body-boundary-delimiter "_"
983 "String used to delimit header and body.
984 This variable is used by `gnus-article-treat-body-boundary' which can
985 be controlled by `gnus-treat-body-boundary'."
987 :group 'gnus-article-various
988 :type '(choice (item :tag "None" :value nil)
991 (defcustom gnus-picon-databases '("/usr/lib/picon" "/usr/local/faces"
993 "Defines the location of the faces database.
994 For information on obtaining this database of pretty pictures, please
995 see http://www.cs.indiana.edu/picons/ftp/index.html"
997 :type '(repeat directory)
998 :link '(url-link :tag "download"
999 "http://www.cs.indiana.edu/picons/ftp/index.html")
1000 :link '(custom-manual "(gnus)Picons")
1003 (defun gnus-picons-installed-p ()
1004 "Say whether picons are installed on your machine."
1005 (let ((installed nil))
1006 (dolist (database gnus-picon-databases)
1007 (when (file-exists-p database)
1008 (setq installed t)))
1011 (defcustom gnus-article-mime-part-function nil
1012 "Function called with a MIME handle as the argument.
1013 This is meant for people who want to do something automatic based
1014 on parts -- for instance, adding Vcard info to a database."
1015 :group 'gnus-article-mime
1016 :type '(choice (const nil)
1019 (defcustom gnus-mime-multipart-functions nil
1020 "An alist of MIME types to functions to display them."
1022 :group 'gnus-article-mime
1023 :type '(repeat (cons :format "%v" (string :tag "MIME type") function)))
1025 (defcustom gnus-article-date-headers '(combined-lapsed)
1026 "A list of Date header formats to display.
1027 Valid formats are `ut' (universal time), `local' (local time
1028 zone), `english' (readable English), `lapsed' (elapsed time),
1029 `combined-lapsed' (both the original date and the elapsed time),
1030 `original' (the original date header), `iso8601' (ISO8601
1031 format), and `user-defined' (a user-defined format defined by the
1032 `gnus-article-time-format' variable).
1034 You have as many date headers as you want in the article buffer.
1035 Some of these headers are updated automatically. See
1036 `gnus-article-update-date-headers' for details."
1038 :group 'gnus-article-headers
1040 (const :tag "Universal time (UT)" ut)
1041 (const :tag "Local time zone" local)
1042 (const :tag "Readable English" english)
1043 (const :tag "Elapsed time" lapsed)
1044 (const :tag "Original and elapsed time" combined-lapsed)
1045 (const :tag "Original date header" original)
1046 (const :tag "ISO8601 format" iso8601)
1047 (const :tag "User-defined" user-defined)))
1049 (defcustom gnus-article-update-date-headers nil
1050 "A number that says how often to update the date header (in seconds).
1051 If nil, don't update it at all."
1053 :group 'gnus-article-headers
1055 (item :tag "Don't update" :value nil)
1058 (defcustom gnus-article-mime-match-handle-function 'undisplayed-alternative
1059 "Function called with a MIME handle as the argument.
1060 This is meant for people who want to view first matched part.
1061 For `undisplayed-alternative' (default), the first undisplayed
1062 part or alternative part is used. For `undisplayed', the first
1063 undisplayed part is used. For a function, the first part which
1064 the function return t is used. For nil, the first part is
1067 :group 'gnus-article-mime
1069 (item :tag "first" :value nil)
1070 (item :tag "undisplayed" :value undisplayed)
1071 (item :tag "undisplayed or alternative"
1072 :value undisplayed-alternative)
1075 (defcustom gnus-mime-action-alist
1076 '(("save to file" . gnus-mime-save-part)
1077 ("save and strip" . gnus-mime-save-part-and-strip)
1078 ("replace with file" . gnus-mime-replace-part)
1079 ("delete part" . gnus-mime-delete-part)
1080 ("display as text" . gnus-mime-inline-part)
1081 ("view the part" . gnus-mime-view-part)
1082 ("pipe to command" . gnus-mime-pipe-part)
1083 ("toggle display" . gnus-article-press-button)
1084 ("toggle display" . gnus-article-view-part-as-charset)
1085 ("view as type" . gnus-mime-view-part-as-type)
1086 ("view internally" . gnus-mime-view-part-internally)
1087 ("view externally" . gnus-mime-view-part-externally))
1088 "An alist of actions that run on the MIME attachment."
1089 :group 'gnus-article-mime
1090 :type '(repeat (cons (string :tag "name")
1093 (defcustom gnus-auto-select-part 1
1094 "Advance to next MIME part when deleting or stripping parts.
1096 When 0, point will be placed on the same part as before. When
1097 positive (negative), move point forward (backwards) this many
1098 parts. When nil, redisplay article."
1099 :version "23.1" ;; No Gnus
1100 :group 'gnus-article-mime
1101 :type '(choice (const nil :tag "Redisplay article.")
1102 (const 1 :tag "Next part.")
1103 (const 0 :tag "Current part.")
1107 ;;; The treatment variables
1110 (defvar gnus-part-display-hook nil
1111 "Hook called on parts that are to receive treatment.")
1113 (defvar gnus-article-treat-custom
1114 '(choice (const :tag "Off" nil)
1116 (const :tag "Header" head)
1117 (const :tag "First" first)
1118 (const :tag "Last" last)
1119 (integer :tag "Less")
1120 (repeat :tag "Groups" regexp)
1121 (sexp :tag "Predicate")))
1123 (defvar gnus-article-treat-head-custom
1124 '(choice (const :tag "Off" nil)
1125 (const :tag "Header" head)))
1127 (defvar gnus-article-treat-types '("text/plain" "text/x-verbatim"
1128 "text/x-patch" "text/html")
1129 "Part types eligible for treatment.")
1131 (defvar gnus-inhibit-treatment nil
1132 "Whether to inhibit treatment.")
1134 (defcustom gnus-treat-highlight-signature '(or t (typep "text/x-vcard"))
1135 "Highlight the signature.
1136 Valid values are nil, t, `head', `first', `last', an integer or a
1137 predicate. See Info node `(gnus)Customizing Articles'."
1138 :group 'gnus-article-treat
1139 :link '(custom-manual "(gnus)Customizing Articles")
1140 :type gnus-article-treat-custom)
1141 (put 'gnus-treat-highlight-signature 'highlight t)
1143 (defcustom gnus-treat-buttonize 100000
1145 Valid values are nil, t, `head', `first', `last', an integer or a
1146 predicate. See Info node `(gnus)Customizing Articles'."
1147 :group 'gnus-article-treat
1148 :link '(custom-manual "(gnus)Customizing Articles")
1149 :type gnus-article-treat-custom)
1150 (put 'gnus-treat-buttonize 'highlight t)
1152 (defcustom gnus-treat-buttonize-head 'head
1153 "Add buttons to the head.
1154 Valid values are nil, t, `head', `first', `last', an integer or a
1155 predicate. See Info node `(gnus)Customizing Articles'."
1156 :group 'gnus-article-treat
1157 :link '(custom-manual "(gnus)Customizing Articles")
1158 :type gnus-article-treat-head-custom)
1159 (put 'gnus-treat-buttonize-head 'highlight t)
1161 (defcustom gnus-treat-date 'head
1162 "Display dates according to the `gnus-article-date-headers' variable.
1163 Valid values are nil, t, `head', `first', `last', an integer or a
1164 predicate. See Info node `(gnus)Customizing Articles'."
1166 :group 'gnus-article-treat
1167 :link '(custom-manual "(gnus)Customizing Articles")
1168 :type gnus-article-treat-head-custom)
1170 (defcustom gnus-treat-emphasize 50000
1172 Valid values are nil, t, `head', `first', `last', an integer or a
1173 predicate. See Info node `(gnus)Customizing Articles'."
1174 :group 'gnus-article-treat
1175 :link '(custom-manual "(gnus)Customizing Articles")
1176 :type gnus-article-treat-custom)
1177 (put 'gnus-treat-emphasize 'highlight t)
1179 (defcustom gnus-treat-strip-cr nil
1180 "Remove carriage returns.
1181 Valid values are nil, t, `head', `first', `last', an integer or a
1182 predicate. See Info node `(gnus)Customizing Articles'."
1184 :group 'gnus-article-treat
1185 :link '(custom-manual "(gnus)Customizing Articles")
1186 :type gnus-article-treat-custom)
1188 (defcustom gnus-treat-unsplit-urls nil
1189 "Remove newlines from within URLs.
1190 Valid values are nil, t, `head', `first', `last', an integer or a
1191 predicate. See Info node `(gnus)Customizing Articles'."
1193 :group 'gnus-article-treat
1194 :link '(custom-manual "(gnus)Customizing Articles")
1195 :type gnus-article-treat-custom)
1197 (defcustom gnus-treat-leading-whitespace nil
1198 "Remove leading whitespace in headers.
1199 Valid values are nil, t, `head', `first', `last', an integer or a
1200 predicate. See Info node `(gnus)Customizing Articles'."
1202 :group 'gnus-article-treat
1203 :link '(custom-manual "(gnus)Customizing Articles")
1204 :type gnus-article-treat-custom)
1206 (defcustom gnus-treat-hide-headers 'head
1208 Valid values are nil, t, `head', `first', `last', an integer or a
1209 predicate. See Info node `(gnus)Customizing Articles'."
1210 :group 'gnus-article-treat
1211 :link '(custom-manual "(gnus)Customizing Articles")
1212 :type gnus-article-treat-head-custom)
1214 (defcustom gnus-treat-hide-boring-headers nil
1215 "Hide boring headers.
1216 Valid values are nil, t, `head', `first', `last', an integer or a
1217 predicate. See Info node `(gnus)Customizing Articles'."
1218 :group 'gnus-article-treat
1219 :link '(custom-manual "(gnus)Customizing Articles")
1220 :type gnus-article-treat-head-custom)
1222 (defcustom gnus-treat-hide-signature nil
1223 "Hide the signature.
1224 Valid values are nil, t, `head', `first', `last', an integer or a
1225 predicate. See Info node `(gnus)Customizing Articles'."
1226 :group 'gnus-article-treat
1227 :link '(custom-manual "(gnus)Customizing Articles")
1228 :type gnus-article-treat-custom)
1230 (defcustom gnus-treat-fill-article nil
1232 Valid values are nil, t, `head', `first', `last', an integer or a
1233 predicate. See Info node `(gnus)Customizing Articles'."
1234 :group 'gnus-article-treat
1235 :link '(custom-manual "(gnus)Customizing Articles")
1236 :type gnus-article-treat-custom)
1238 (defcustom gnus-treat-hide-citation nil
1240 Valid values are nil, t, `head', `first', `last', an integer or a
1241 predicate. See Info node `(gnus)Customizing Articles'.
1243 See `gnus-article-highlight-citation' for variables used to
1244 control what it hides."
1245 :group 'gnus-article-treat
1246 :link '(custom-manual "(gnus)Customizing Articles")
1247 :type gnus-article-treat-custom)
1249 (defcustom gnus-treat-hide-citation-maybe nil
1250 "Hide cited text according to certain conditions.
1251 Valid values are nil, t, `head', `first', `last', an integer or a
1252 predicate. See Info node `(gnus)Customizing Articles'.
1254 See `gnus-cite-hide-percentage' and `gnus-cite-hide-absolute' for
1255 how to control what it hides."
1256 :group 'gnus-article-treat
1257 :link '(custom-manual "(gnus)Customizing Articles")
1258 :type gnus-article-treat-custom)
1260 (defcustom gnus-treat-strip-list-identifiers 'head
1261 "Strip list identifiers from `gnus-list-identifiers`.
1262 Valid values are nil, t, `head', `first', `last', an integer or a
1263 predicate. See Info node `(gnus)Customizing Articles'."
1265 :group 'gnus-article-treat
1266 :link '(custom-manual "(gnus)Customizing Articles")
1267 :type gnus-article-treat-custom)
1269 (gnus-define-group-parameter
1272 "Alist of regexps and correspondent identifiers."
1273 :variable-group gnus-article-washing
1275 '(choice :tag "Identifier"
1277 (symbol :tag "Item in `gnus-list-identifiers'" none)
1279 (const :tag "None" nil))
1281 "If non-nil, specify how to remove `identifiers' from articles' subject.
1283 Any symbol is used to look up a regular expression to match the
1284 banner in `gnus-list-identifiers'. A string is used as a regular
1285 expression to match the identifier directly.")
1287 (make-obsolete-variable 'gnus-treat-strip-pgp nil
1288 "Gnus 5.10 (Emacs 22.1)")
1290 (defcustom gnus-treat-strip-pem nil
1291 "Strip PEM signatures.
1292 Valid values are nil, t, `head', `first', `last', an integer or a
1293 predicate. See Info node `(gnus)Customizing Articles'."
1294 :group 'gnus-article-treat
1295 :link '(custom-manual "(gnus)Customizing Articles")
1296 :type gnus-article-treat-custom)
1298 (defcustom gnus-treat-strip-banner t
1299 "Strip banners from articles.
1300 The banner to be stripped is specified in the `banner' group parameter.
1301 Valid values are nil, t, `head', `first', `last', an integer or a
1302 predicate. See Info node `(gnus)Customizing Articles'."
1303 :group 'gnus-article-treat
1304 :link '(custom-manual "(gnus)Customizing Articles")
1305 :type gnus-article-treat-custom)
1307 (defcustom gnus-treat-highlight-headers 'head
1308 "Highlight the headers.
1309 Valid values are nil, t, `head', `first', `last', an integer or a
1310 predicate. See Info node `(gnus)Customizing Articles'."
1311 :group 'gnus-article-treat
1312 :link '(custom-manual "(gnus)Customizing Articles")
1313 :type gnus-article-treat-head-custom)
1314 (put 'gnus-treat-highlight-headers 'highlight t)
1316 (defcustom gnus-treat-highlight-citation t
1317 "Highlight cited text.
1318 Valid values are nil, t, `head', `first', `last', an integer or a
1319 predicate. See Info node `(gnus)Customizing Articles'."
1320 :group 'gnus-article-treat
1321 :link '(custom-manual "(gnus)Customizing Articles")
1322 :type gnus-article-treat-custom)
1323 (put 'gnus-treat-highlight-citation 'highlight t)
1325 (defcustom gnus-treat-strip-headers-in-body t
1326 "Strip the X-No-Archive header line from the beginning of the body.
1327 Valid values are nil, t, `head', `first', `last', an integer or a
1328 predicate. See Info node `(gnus)Customizing Articles'."
1330 :group 'gnus-article-treat
1331 :link '(custom-manual "(gnus)Customizing Articles")
1332 :type gnus-article-treat-custom)
1334 (defcustom gnus-treat-strip-trailing-blank-lines nil
1335 "Strip trailing blank lines.
1336 Valid values are nil, t, `head', `first', `last', an integer or a
1337 predicate. See Info node `(gnus)Customizing Articles'.
1339 When set to t, it also strips trailing blanks in all MIME parts.
1340 Consider to use `last' instead."
1341 :group 'gnus-article-treat
1342 :link '(custom-manual "(gnus)Customizing Articles")
1343 :type gnus-article-treat-custom)
1345 (defcustom gnus-treat-strip-leading-blank-lines nil
1346 "Strip leading blank lines.
1347 Valid values are nil, t, `head', `first', `last', an integer or a
1348 predicate. See Info node `(gnus)Customizing Articles'.
1350 When set to t, it also strips trailing blanks in all MIME parts."
1351 :group 'gnus-article-treat
1352 :link '(custom-manual "(gnus)Customizing Articles")
1353 :type gnus-article-treat-custom)
1355 (defcustom gnus-treat-strip-multiple-blank-lines nil
1356 "Strip multiple blank lines.
1357 Valid values are nil, t, `head', `first', `last', an integer or a
1358 predicate. See Info node `(gnus)Customizing Articles'."
1359 :group 'gnus-article-treat
1360 :link '(custom-manual "(gnus)Customizing Articles")
1361 :type gnus-article-treat-custom)
1363 (defcustom gnus-treat-unfold-headers 'head
1364 "Unfold folded header lines.
1365 Valid values are nil, t, `head', `first', `last', an integer or a
1366 predicate. See Info node `(gnus)Customizing Articles'."
1368 :group 'gnus-article-treat
1369 :link '(custom-manual "(gnus)Customizing Articles")
1370 :type gnus-article-treat-custom)
1372 (defcustom gnus-article-unfold-long-headers nil
1373 "If non-nil, allow unfolding headers even if the header is long.
1374 If it is a regexp, only long headers matching this regexp are unfolded.
1375 If it is t, all long headers are unfolded.
1377 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1378 :version "23.1" ;; No Gnus
1379 :group 'gnus-article-treat
1380 :type '(choice (const nil)
1381 (const :tag "all" t)
1384 (defcustom gnus-treat-fold-headers nil
1386 Valid values are nil, t, `head', `first', `last', an integer or a
1387 predicate. See Info node `(gnus)Customizing Articles'."
1389 :group 'gnus-article-treat
1390 :link '(custom-manual "(gnus)Customizing Articles")
1391 :type gnus-article-treat-custom)
1393 (defcustom gnus-treat-fold-newsgroups 'head
1394 "Fold the Newsgroups and Followup-To headers.
1395 Valid values are nil, t, `head', `first', `last', an integer or a
1396 predicate. See Info node `(gnus)Customizing Articles'."
1398 :group 'gnus-article-treat
1399 :link '(custom-manual "(gnus)Customizing Articles")
1400 :type gnus-article-treat-custom)
1402 (defcustom gnus-treat-overstrike t
1403 "Treat overstrike highlighting.
1404 Valid values are nil, t, `head', `first', `last', an integer or a
1405 predicate. See Info node `(gnus)Customizing Articles'."
1406 :group 'gnus-article-treat
1407 :link '(custom-manual "(gnus)Customizing Articles")
1408 :type gnus-article-treat-custom)
1409 (put 'gnus-treat-overstrike 'highlight t)
1411 (defcustom gnus-treat-ansi-sequences (if (locate-library "ansi-color") t)
1412 "Treat ANSI SGR control sequences.
1413 Valid values are nil, t, `head', `first', `last', an integer or a
1414 predicate. See Info node `(gnus)Customizing Articles'."
1415 :group 'gnus-article-treat
1416 :link '(custom-manual "(gnus)Customizing Articles")
1417 :type gnus-article-treat-custom)
1419 (make-obsolete-variable 'gnus-treat-display-xface
1420 'gnus-treat-display-x-face "Emacs 22.1")
1422 (defcustom gnus-treat-display-x-face
1423 (and (not noninteractive)
1424 (gnus-image-type-available-p 'xbm)
1425 (if (featurep 'xemacs)
1428 (and (string-match "^0x" (shell-command-to-string "uncompface"))
1429 (executable-find "icontopbm"))
1430 ;; shell-command-to-string may signal an error, e.g. if
1431 ;; shell-file-name is not found.
1434 "Display X-Face headers.
1435 Valid values are nil and `head'.
1436 See Info node `(gnus)Customizing Articles' and Info node
1437 `(gnus)X-Face' for details."
1438 :group 'gnus-article-treat
1440 :link '(custom-manual "(gnus)Customizing Articles")
1441 :link '(custom-manual "(gnus)X-Face")
1442 :type gnus-article-treat-head-custom
1443 :set (lambda (symbol value)
1446 (cond ((or (boundp symbol) (get symbol 'saved-value))
1448 ((boundp 'gnus-treat-display-xface)
1450 ** gnus-treat-display-xface is an obsolete variable;\
1451 use gnus-treat-display-x-face instead")
1452 (default-value 'gnus-treat-display-xface))
1453 ((get 'gnus-treat-display-xface 'saved-value)
1455 ** gnus-treat-display-xface is an obsolete variable;\
1456 use gnus-treat-display-x-face instead")
1457 (eval (car (get 'gnus-treat-display-xface 'saved-value))))
1460 (put 'gnus-treat-display-x-face 'highlight t)
1462 (defcustom gnus-treat-display-face
1463 (and (not noninteractive)
1464 (gnus-image-type-available-p 'png)
1466 "Display Face headers.
1467 Valid values are nil, t, `head', `first', `last', an integer or a
1468 predicate. See Info node `(gnus)Customizing Articles' and Info
1469 node `(gnus)Face' for details."
1470 :group 'gnus-article-treat
1472 :link '(custom-manual "(gnus)Customizing Articles")
1473 :link '(custom-manual "(gnus)X-Face")
1474 :type gnus-article-treat-head-custom)
1475 (put 'gnus-treat-display-face 'highlight t)
1477 (defcustom gnus-treat-display-smileys (gnus-image-type-available-p 'xpm)
1479 Valid values are nil, t, `head', `first', `last', an integer or a
1480 predicate. See Info node `(gnus)Customizing Articles' and Info
1481 node `(gnus)Smileys' for details."
1482 :group 'gnus-article-treat
1484 :link '(custom-manual "(gnus)Customizing Articles")
1485 :link '(custom-manual "(gnus)Smileys")
1486 :type gnus-article-treat-custom)
1487 (put 'gnus-treat-display-smileys 'highlight t)
1489 (defcustom gnus-treat-from-picon
1490 (if (and (gnus-image-type-available-p 'xpm)
1491 (gnus-picons-installed-p))
1493 "Display picons in the From header.
1494 Valid values are nil, t, `head', `first', `last', an integer or a
1495 predicate. See Info node `(gnus)Customizing Articles' and Info
1496 node `(gnus)Picons' for details."
1498 :group 'gnus-article-treat
1500 :link '(custom-manual "(gnus)Customizing Articles")
1501 :link '(custom-manual "(gnus)Picons")
1502 :type gnus-article-treat-head-custom)
1503 (put 'gnus-treat-from-picon 'highlight t)
1505 (defcustom gnus-treat-mail-picon
1506 (if (and (gnus-image-type-available-p 'xpm)
1507 (gnus-picons-installed-p))
1509 "Display picons in To and Cc headers.
1510 Valid values are nil, t, `head', `first', `last', an integer or a
1511 predicate. See Info node `(gnus)Customizing Articles' and Info
1512 node `(gnus)Picons' for details."
1514 :group 'gnus-article-treat
1516 :link '(custom-manual "(gnus)Customizing Articles")
1517 :link '(custom-manual "(gnus)Picons")
1518 :type gnus-article-treat-head-custom)
1519 (put 'gnus-treat-mail-picon 'highlight t)
1521 (defcustom gnus-treat-newsgroups-picon
1522 (if (and (gnus-image-type-available-p 'xpm)
1523 (gnus-picons-installed-p))
1525 "Display picons in the Newsgroups and Followup-To headers.
1526 Valid values are nil, t, `head', `first', `last', an integer or a
1527 predicate. See Info node `(gnus)Customizing Articles' and Info
1528 node `(gnus)Picons' for details."
1530 :group 'gnus-article-treat
1532 :link '(custom-manual "(gnus)Customizing Articles")
1533 :link '(custom-manual "(gnus)Picons")
1534 :type gnus-article-treat-head-custom)
1535 (put 'gnus-treat-newsgroups-picon 'highlight t)
1537 (defcustom gnus-treat-from-gravatar nil
1538 "Display gravatars in the From header.
1539 Valid values are nil, t, `head', `first', `last', an integer or a
1540 predicate. See Info node `(gnus)Customizing Articles' and Info
1541 node `(gnus)Gravatars' for details."
1543 :group 'gnus-article-treat
1544 :group 'gnus-gravatar
1545 :link '(custom-manual "(gnus)Customizing Articles")
1546 :link '(custom-manual "(gnus)Gravatars")
1547 :type gnus-article-treat-head-custom)
1548 (put 'gnus-treat-from-gravatar 'highlight t)
1550 (defcustom gnus-treat-mail-gravatar nil
1551 "Display gravatars in To and Cc headers.
1552 Valid values are nil, t, `head', `first', `last', an integer or a
1553 predicate. See Info node `(gnus)Customizing Articles' and Info
1554 node `(gnus)Gravatars' for details."
1556 :group 'gnus-article-treat
1557 :group 'gnus-gravatar
1558 :link '(custom-manual "(gnus)Customizing Articles")
1559 :link '(custom-manual "(gnus)Gravatars")
1560 :type gnus-article-treat-head-custom)
1561 (put 'gnus-treat-mail-gravatar 'highlight t)
1563 (defcustom gnus-treat-body-boundary
1564 (if (or gnus-treat-newsgroups-picon
1565 gnus-treat-mail-picon
1566 gnus-treat-from-picon
1567 gnus-treat-from-gravatar
1568 gnus-treat-mail-gravatar)
1569 ;; If there's much decoration, the user might prefer a boundary.
1572 "Draw a boundary at the end of the headers.
1573 Valid values are nil and `head'.
1574 See Info node `(gnus)Customizing Articles' for details."
1576 :group 'gnus-article-treat
1577 :link '(custom-manual "(gnus)Customizing Articles")
1578 :type gnus-article-treat-head-custom)
1580 (defcustom gnus-treat-capitalize-sentences nil
1581 "Capitalize sentence-starting words.
1582 Valid values are nil, t, `head', `first', `last', an integer or a
1583 predicate. See Info node `(gnus)Customizing Articles'."
1585 :group 'gnus-article-treat
1586 :link '(custom-manual "(gnus)Customizing Articles")
1587 :type gnus-article-treat-custom)
1589 (defcustom gnus-treat-wash-html nil
1591 Valid values are nil, t, `head', `first', `last', an integer or a
1592 predicate. See Info node `(gnus)Customizing Articles'."
1594 :group 'gnus-article-treat
1595 :link '(custom-manual "(gnus)Customizing Articles")
1596 :type gnus-article-treat-custom)
1598 (defcustom gnus-treat-fill-long-lines '(typep "text/plain")
1600 Valid values are nil, t, `head', `first', `last', an integer or a
1601 predicate. See Info node `(gnus)Customizing Articles'."
1603 :group 'gnus-article-treat
1604 :link '(custom-manual "(gnus)Customizing Articles")
1605 :type gnus-article-treat-custom)
1607 (defcustom gnus-treat-x-pgp-sig nil
1609 To automatically treat X-PGP-Sig, set it to head.
1610 Valid values are nil, t, `head', `first', `last', an integer or a
1611 predicate. See Info node `(gnus)Customizing Articles'."
1613 :group 'gnus-article-treat
1614 :group 'mime-security
1615 :link '(custom-manual "(gnus)Customizing Articles")
1616 :type gnus-article-treat-custom)
1618 (defvar gnus-article-encrypt-protocol-alist
1619 '(("PGP" . mml2015-self-encrypt)))
1621 ;; Set to nil if more than one protocol added to
1622 ;; gnus-article-encrypt-protocol-alist.
1623 (defcustom gnus-article-encrypt-protocol "PGP"
1624 "The protocol used for encrypt articles.
1625 It is a string, such as \"PGP\". If nil, ask user."
1628 :group 'mime-security)
1630 (defvar idna-program)
1632 (defcustom gnus-use-idna (and (condition-case nil (require 'idna) (file-error))
1633 (mm-coding-system-p 'utf-8)
1635 (executable-find idna-program))
1636 "Whether IDNA decoding of headers is used when viewing messages.
1637 This requires GNU Libidn, and by default only enabled if it is found."
1639 :group 'gnus-article-headers
1642 (defcustom gnus-article-over-scroll nil
1643 "If non-nil, allow scrolling the article buffer even when there no more text."
1645 :group 'gnus-article
1648 (defcustom gnus-inhibit-images nil
1649 "Non-nil means inhibit displaying of images inline in the article body."
1651 :group 'gnus-article
1654 (defcustom gnus-blocked-images 'gnus-block-private-groups
1655 "Images that have URLs matching this regexp will be blocked.
1656 This can also be a function to be evaluated. If so, it will be
1657 called with the group name as the parameter, and should return a
1661 :type '(choice regexp function))
1663 ;;; Internal variables
1665 (defvar gnus-english-month-names
1666 '("January" "February" "March" "April" "May" "June" "July" "August"
1667 "September" "October" "November" "December"))
1669 (defvar article-goto-body-goes-to-point-min-p nil)
1670 (defvar gnus-article-wash-types nil)
1671 (defvar gnus-article-emphasis-alist nil)
1672 (defvar gnus-article-image-alist nil)
1674 (defvar gnus-article-mime-handle-alist-1 nil)
1675 (defvar gnus-treatment-function-alist
1676 '((gnus-treat-strip-cr gnus-article-remove-cr)
1677 (gnus-treat-x-pgp-sig gnus-article-verify-x-pgp-sig)
1678 (gnus-treat-strip-banner gnus-article-strip-banner)
1679 (gnus-treat-strip-headers-in-body gnus-article-strip-headers-in-body)
1680 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1681 (gnus-treat-buttonize gnus-article-add-buttons)
1682 (gnus-treat-fill-article gnus-article-fill-cited-article)
1683 (gnus-treat-fill-long-lines gnus-article-fill-cited-long-lines)
1684 (gnus-treat-unsplit-urls gnus-article-unsplit-urls)
1685 (gnus-treat-display-x-face gnus-article-display-x-face)
1686 (gnus-treat-display-face gnus-article-display-face)
1687 (gnus-treat-hide-headers gnus-article-maybe-hide-headers)
1688 (gnus-treat-hide-boring-headers gnus-article-hide-boring-headers)
1689 (gnus-treat-hide-signature gnus-article-hide-signature)
1690 (gnus-treat-strip-list-identifiers gnus-article-hide-list-identifiers)
1691 (gnus-treat-leading-whitespace gnus-article-remove-leading-whitespace)
1692 (gnus-treat-from-picon gnus-treat-from-picon)
1693 (gnus-treat-mail-picon gnus-treat-mail-picon)
1694 (gnus-treat-newsgroups-picon gnus-treat-newsgroups-picon)
1695 (gnus-treat-strip-pem gnus-article-hide-pem)
1696 (gnus-treat-date gnus-article-treat-date)
1697 (gnus-treat-from-gravatar gnus-treat-from-gravatar)
1698 (gnus-treat-mail-gravatar gnus-treat-mail-gravatar)
1699 (gnus-treat-highlight-headers gnus-article-highlight-headers)
1700 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1701 (gnus-treat-strip-trailing-blank-lines
1702 gnus-article-remove-trailing-blank-lines)
1703 (gnus-treat-strip-leading-blank-lines
1704 gnus-article-strip-leading-blank-lines)
1705 (gnus-treat-strip-multiple-blank-lines
1706 gnus-article-strip-multiple-blank-lines)
1707 (gnus-treat-overstrike gnus-article-treat-overstrike)
1708 (gnus-treat-ansi-sequences gnus-article-treat-ansi-sequences)
1709 (gnus-treat-unfold-headers gnus-article-treat-unfold-headers)
1710 (gnus-treat-fold-newsgroups gnus-article-treat-fold-newsgroups)
1711 (gnus-treat-fold-headers gnus-article-treat-fold-headers)
1712 (gnus-treat-buttonize-head gnus-article-add-buttons-to-head)
1713 (gnus-treat-display-smileys gnus-treat-smiley)
1714 (gnus-treat-capitalize-sentences gnus-article-capitalize-sentences)
1715 (gnus-treat-wash-html gnus-article-wash-html)
1716 (gnus-treat-emphasize gnus-article-emphasize)
1717 (gnus-treat-hide-citation gnus-article-hide-citation)
1718 (gnus-treat-hide-citation-maybe gnus-article-hide-citation-maybe)
1719 (gnus-treat-highlight-citation gnus-article-highlight-citation)
1720 (gnus-treat-body-boundary gnus-article-treat-body-boundary)))
1722 (defvar gnus-article-mime-handle-alist nil)
1723 (defvar article-lapsed-timer nil)
1724 (defvar gnus-article-current-summary nil)
1726 (defvar gnus-article-mode-syntax-table
1727 (let ((table (copy-syntax-table text-mode-syntax-table)))
1728 ;; This causes the citation match run O(2^n).
1729 ;; (modify-syntax-entry ?- "w" table)
1730 (modify-syntax-entry ?> ")<" table)
1731 (modify-syntax-entry ?< "(>" table)
1732 ;; make M-. in article buffers work for `foo' strings
1733 (modify-syntax-entry ?' " " table)
1734 (modify-syntax-entry ?` " " table)
1736 "Syntax table used in article mode buffers.
1737 Initialized from `text-mode-syntax-table.")
1739 (defvar gnus-save-article-buffer nil)
1741 (defvar gnus-number-of-articles-to-be-saved nil)
1743 (defvar gnus-inhibit-hiding nil)
1745 (defvar gnus-article-edit-mode nil)
1747 ;;; Macros for dealing with the article buffer.
1749 (defmacro gnus-with-article-headers (&rest forms)
1750 `(with-current-buffer gnus-article-buffer
1752 (let ((inhibit-read-only t)
1753 (inhibit-point-motion-hooks t)
1754 (case-fold-search t))
1755 (article-narrow-to-head)
1758 (put 'gnus-with-article-headers 'lisp-indent-function 0)
1759 (put 'gnus-with-article-headers 'edebug-form-spec '(body))
1761 (defmacro gnus-with-article-buffer (&rest forms)
1762 `(when (buffer-live-p (get-buffer gnus-article-buffer))
1763 (with-current-buffer gnus-article-buffer
1764 (let ((inhibit-read-only t))
1767 (put 'gnus-with-article-buffer 'lisp-indent-function 0)
1768 (put 'gnus-with-article-buffer 'edebug-form-spec '(body))
1770 (defun gnus-article-goto-header (header)
1771 "Go to HEADER, which is a regular expression."
1772 (re-search-forward (concat "^\\(" header "\\):") nil t))
1774 (defsubst gnus-article-hide-text (b e props)
1775 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1776 (gnus-add-text-properties-when 'article-type nil b e props)
1777 (when (memq 'intangible props)
1779 (max (1- b) (point-min))
1780 b 'intangible (cddr (memq 'intangible props)))))
1782 (defsubst gnus-article-unhide-text (b e)
1783 "Remove hidden text properties from region between B and E."
1784 (remove-text-properties b e gnus-hidden-properties)
1785 (when (memq 'intangible gnus-hidden-properties)
1786 (put-text-property (max (1- b) (point-min))
1787 b 'intangible nil)))
1789 (defun gnus-article-hide-text-type (b e type)
1790 "Hide text of TYPE between B and E."
1791 (gnus-add-wash-type type)
1792 (gnus-article-hide-text
1793 b e (cons 'article-type (cons type gnus-hidden-properties))))
1795 (defun gnus-article-unhide-text-type (b e type)
1796 "Unhide text of TYPE between B and E."
1797 (gnus-delete-wash-type type)
1798 (remove-text-properties
1799 b e (cons 'article-type (cons type gnus-hidden-properties)))
1800 (when (memq 'intangible gnus-hidden-properties)
1801 (put-text-property (max (1- b) (point-min))
1802 b 'intangible nil)))
1804 (defun gnus-article-delete-text-of-type (type)
1805 "Delete text of TYPE in the current buffer."
1807 (let ((b (point-min)))
1808 (if (eq type 'multipart)
1809 ;; Remove MIME buttons associated with multipart/alternative parts.
1812 (while (if (get-text-property (point) 'gnus-part)
1814 (when (setq b (next-single-property-change (point)
1819 (skip-chars-forward "\n")
1820 (when (eq (get-text-property b 'article-type) 'multipart)
1821 (delete-region b (point)))))
1822 (while (setq b (text-property-any b (point-max) 'article-type type))
1824 b (or (text-property-not-all b (point-max) 'article-type type)
1827 (defun gnus-article-delete-invisible-text ()
1828 "Delete all invisible text in the current buffer."
1830 (let ((b (point-min)))
1831 (while (setq b (text-property-any b (point-max) 'invisible t))
1833 b (or (text-property-not-all b (point-max) 'invisible t)
1836 (defsubst gnus-article-header-rank ()
1837 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1838 (let ((list gnus-sorted-header-list)
1841 (if (looking-at (car list))
1843 (setq list (cdr list))
1847 (defun article-hide-headers (&optional _arg _delete)
1848 "Hide unwanted headers and possibly sort them as well."
1850 ;; This function might be inhibited.
1851 (unless gnus-inhibit-hiding
1852 (let ((inhibit-read-only t)
1853 (case-fold-search t)
1854 (max (1+ (length gnus-sorted-header-list)))
1855 (inhibit-point-motion-hooks t)
1856 (cur (current-buffer))
1857 ignored visible beg)
1859 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1860 ;; group parameters, so we should go to the summary buffer.
1863 (progn (set-buffer gnus-summary-buffer) t)
1865 (setq ignored (when (not gnus-visible-headers)
1866 (cond ((stringp gnus-ignored-headers)
1867 gnus-ignored-headers)
1868 ((listp gnus-ignored-headers)
1869 (mapconcat 'identity
1870 gnus-ignored-headers
1872 visible (cond ((stringp gnus-visible-headers)
1873 gnus-visible-headers)
1874 ((and gnus-visible-headers
1875 (listp gnus-visible-headers))
1876 (mapconcat 'identity
1877 gnus-visible-headers
1881 ;; First we narrow to just the headers.
1882 (article-narrow-to-head)
1883 ;; Hide any "From " lines at the beginning of (mail) articles.
1884 (while (looking-at "From ")
1887 (delete-region (point-min) (point)))
1888 ;; Then treat the rest of the header lines.
1889 ;; Then we use the two regular expressions
1890 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1891 ;; select which header lines is to remain visible in the
1893 (while (re-search-forward "^[^ \t:]*:" nil t)
1895 ;; Mark the rank of the header.
1897 (point) (1+ (point)) 'message-rank
1898 (if (or (and visible (looking-at visible))
1900 (not (looking-at ignored))))
1901 (gnus-article-header-rank)
1904 (message-sort-headers-1)
1905 (when (setq beg (text-property-any
1906 (point-min) (point-max) 'message-rank (+ 2 max)))
1907 ;; We delete the unwanted headers.
1908 (gnus-add-wash-type 'headers)
1909 (add-text-properties (point-min) (+ 5 (point-min))
1910 '(article-type headers dummy-invisible t))
1911 (delete-region beg (point-max))))))))
1913 (defun article-hide-boring-headers (&optional arg)
1914 "Toggle hiding of headers that aren't very interesting.
1915 If given a negative prefix, always show; if given a positive prefix,
1917 (interactive (gnus-article-hidden-arg))
1918 (when (and (not (gnus-article-check-hidden-text 'boring-headers arg))
1919 (not gnus-show-all-headers))
1922 (let ((inhibit-read-only t)
1923 (inhibit-point-motion-hooks t))
1924 (article-narrow-to-head)
1925 (dolist (elem gnus-boring-article-headers)
1926 (goto-char (point-min))
1928 ;; Hide empty headers.
1930 (while (re-search-forward "^[^: \t]+:[ \t]*\n[^ \t]" nil t)
1932 (gnus-article-hide-text-type
1936 (if (re-search-forward "^[^ \t]" nil t)
1940 ;; Hide boring Newsgroups header.
1941 ((eq elem 'newsgroups)
1942 (when (gnus-string-equal
1943 (gnus-fetch-field "newsgroups")
1944 (gnus-group-real-name
1945 (if (boundp 'gnus-newsgroup-name)
1948 (gnus-article-hide-header "newsgroups")))
1949 ((eq elem 'to-address)
1950 (let ((to (message-fetch-field "to"))
1952 (gnus-parameter-to-address
1953 (if (boundp 'gnus-newsgroup-name)
1954 gnus-newsgroup-name ""))))
1955 (when (and to to-address
1958 ;; only one address in To
1959 (nth 1 (mail-extract-address-components to))
1961 (gnus-article-hide-header "to"))))
1963 (let ((to (message-fetch-field "to"))
1965 (gnus-parameter-to-list
1966 (if (boundp 'gnus-newsgroup-name)
1967 gnus-newsgroup-name ""))))
1968 (when (and to to-list
1971 ;; only one address in To
1972 (nth 1 (mail-extract-address-components to))
1974 (gnus-article-hide-header "to"))))
1976 (let ((cc (message-fetch-field "cc"))
1978 (gnus-parameter-to-list
1979 (if (boundp 'gnus-newsgroup-name)
1980 gnus-newsgroup-name ""))))
1981 (when (and cc to-list
1984 ;; only one address in CC
1985 (nth 1 (mail-extract-address-components cc))
1987 (gnus-article-hide-header "cc"))))
1988 ((eq elem 'followup-to)
1989 (when (gnus-string-equal
1990 (message-fetch-field "followup-to")
1991 (message-fetch-field "newsgroups"))
1992 (gnus-article-hide-header "followup-to")))
1993 ((eq elem 'reply-to)
1994 (if (gnus-group-find-parameter
1995 gnus-newsgroup-name 'broken-reply-to)
1996 (gnus-article-hide-header "reply-to")
1997 (let ((from (message-fetch-field "from"))
1998 (reply-to (message-fetch-field "reply-to")))
2005 (lambda (x) (downcase (cadr x)))
2006 (mail-extract-address-components from t))
2009 (lambda (x) (downcase (cadr x)))
2010 (mail-extract-address-components reply-to t))
2012 (gnus-article-hide-header "reply-to")))))
2014 (let ((date (with-current-buffer gnus-original-article-buffer
2015 ;; If date in `gnus-article-buffer' is localized
2016 ;; (`gnus-treat-date-user-defined'),
2017 ;; `days-between' might fail.
2018 (message-fetch-field "date"))))
2020 (< (days-between (current-time-string) date)
2022 (gnus-article-hide-header "date"))))
2024 (let ((to (message-fetch-field "to"))
2025 (cc (message-fetch-field "cc")))
2026 (when (> (length to) 1024)
2027 (gnus-article-hide-header "to"))
2028 (when (> (length cc) 1024)
2029 (gnus-article-hide-header "cc"))))
2033 (goto-char (point-min))
2034 (while (re-search-forward "^to:" nil t)
2035 (setq to-count (1+ to-count)))
2036 (when (> to-count 1)
2037 (while (> to-count 0)
2038 (goto-char (point-min))
2040 (re-search-forward "^to:" nil nil to-count)
2042 (narrow-to-region (point) (point-max))
2043 (gnus-article-hide-header "to"))
2044 (setq to-count (1- to-count))))
2045 (goto-char (point-min))
2046 (while (re-search-forward "^cc:" nil t)
2047 (setq cc-count (1+ cc-count)))
2048 (when (> cc-count 1)
2049 (while (> cc-count 0)
2050 (goto-char (point-min))
2052 (re-search-forward "^cc:" nil nil cc-count)
2054 (narrow-to-region (point) (point-max))
2055 (gnus-article-hide-header "cc"))
2056 (setq cc-count (1- cc-count)))))))))))))
2058 (defun gnus-article-hide-header (header)
2060 (goto-char (point-min))
2061 (when (re-search-forward (concat "^" header ":") nil t)
2062 (gnus-article-hide-text-type
2066 (if (re-search-forward "^[^ \t]" nil t)
2071 (defvar gnus-article-normalized-header-length 40
2072 "Length of normalized headers.")
2074 (defun article-normalize-headers ()
2075 "Make all header lines 40 characters long."
2077 (let ((inhibit-read-only t)
2081 (article-narrow-to-head)
2084 ((< (setq column (- (point-at-eol) (point)))
2085 gnus-article-normalized-header-length)
2087 (insert (make-string
2088 (- gnus-article-normalized-header-length column)
2090 ((> column gnus-article-normalized-header-length)
2091 (gnus-put-text-property
2093 (forward-char gnus-article-normalized-header-length)
2100 (forward-line 1))))))
2102 (defun article-treat-dumbquotes ()
2103 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2104 Note that this function guesses whether a character is a sm*rtq**t* or
2105 not, so it should only be used interactively.
2107 Sm*rtq**t*s are M****s***'s unilateral extension to the
2108 iso-8859-1 character map in an attempt to provide more quoting
2109 characters. If you see something like \\222 or \\264 where
2110 you're expecting some kind of apostrophe or quotation mark, then
2113 (article-translate-strings gnus-article-dumbquotes-map))
2115 (defvar org-entities)
2117 (defun article-treat-non-ascii ()
2118 "Translate many Unicode characters into their ASCII equivalents."
2120 (require 'org-entities)
2121 (let ((table (make-char-table (if (featurep 'xemacs) 'generic))))
2122 (dolist (elem org-entities)
2123 (when (and (listp elem)
2124 (= (length (nth 6 elem)) 1))
2125 (if (featurep 'xemacs)
2126 (put-char-table (aref (nth 6 elem) 0) (nth 4 elem) table)
2127 (set-char-table-range table (aref (nth 6 elem) 0) (nth 4 elem)))))
2129 (when (article-goto-body)
2130 (let ((inhibit-read-only t)
2133 (if (not (setq replace (if (featurep 'xemacs)
2134 (get-char-table (following-char) table)
2135 (aref table (following-char)))))
2138 (setq props (text-properties-at (point)))
2140 (add-text-properties (point) (progn (insert replace) (point))
2142 (insert replace)))))))))
2144 (defun article-translate-strings (map)
2145 "Translate all string in the body of the article according to MAP.
2146 MAP is an alist where the elements are on the form (\"from\" \"to\")."
2148 (when (article-goto-body)
2149 (let ((inhibit-read-only t))
2151 (let ((from (car elem))
2155 (while (search-forward from nil t)
2158 (if (eq (following-char) from)
2162 (forward-char 1)))))))))))
2164 (defun article-treat-overstrike ()
2165 "Translate overstrikes into bold text."
2168 (when (article-goto-body)
2169 (let ((inhibit-read-only t))
2170 (while (search-forward "\b" nil t)
2171 (let ((next (char-after))
2172 (previous (char-after (- (point) 2))))
2173 ;; We do the boldification/underlining by hiding the
2174 ;; overstrikes and putting the proper text property
2178 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
2179 (put-text-property (point) (1+ (point)) 'face 'bold))
2181 (gnus-article-hide-text-type
2182 (1- (point)) (1+ (point)) 'overstrike)
2184 (- (point) 2) (1- (point)) 'face 'underline))
2186 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
2188 (point) (1+ (point)) 'face 'underline)))))))))
2190 (defun article-treat-ansi-sequences ()
2191 "Translate ANSI SGR control sequences into overlays or extents."
2194 (when (article-goto-body)
2195 (let ((inhibit-read-only t))
2196 (ansi-color-apply-on-region (point) (point-max))))))
2198 (defun gnus-article-treat-unfold-headers ()
2199 "Unfold folded message headers.
2200 Only the headers that fit into the current window width will be
2203 (gnus-with-article-headers
2207 (mail-header-narrow-to-field)
2208 (let* ((header (buffer-string))
2210 (or (equal gnus-article-unfold-long-headers t)
2211 (and (stringp gnus-article-unfold-long-headers)
2212 (string-match gnus-article-unfold-long-headers
2216 (goto-char (point-min))
2217 (while (re-search-forward "\n[\t ]" nil t)
2218 (replace-match " " t t)))
2219 (setq length (- (point-max) (point-min) 1))
2220 (when (or unfoldable
2221 (< length (window-width)))
2222 (while (re-search-forward "\n[\t ]" nil t)
2223 (replace-match " " t t))))
2224 (goto-char (point-max)))))))
2226 (defun gnus-article-treat-fold-headers ()
2227 "Fold message headers."
2229 (gnus-with-article-headers
2232 (mail-header-narrow-to-field)
2233 (mail-header-fold-field)
2234 (goto-char (point-max))))))
2236 (defun gnus-treat-smiley ()
2237 "Toggle display of textual emoticons (\"smileys\") as small graphical icons."
2239 (gnus-with-article-buffer
2240 (if (memq 'smiley gnus-article-wash-types)
2241 (gnus-delete-images 'smiley)
2243 (let ((images (smiley-region (point) (point-max))))
2245 (gnus-add-wash-type 'smiley)
2246 (dolist (image images)
2247 (gnus-add-image 'smiley image)))))))
2249 (defun gnus-article-remove-images ()
2250 "Remove all images from the article buffer."
2252 (gnus-with-article-buffer
2255 (dolist (elem gnus-article-image-alist)
2256 (gnus-delete-images (car elem))))))
2258 (autoload 'w3m-toggle-inline-images "w3m")
2260 (defun gnus-article-show-images ()
2261 "Show any images that are in the HTML-rendered article buffer.
2262 This only works if the article in question is HTML."
2264 (gnus-with-article-buffer
2267 (if (eq mm-text-html-renderer 'w3m)
2268 (let ((mm-inline-text-html-with-images nil))
2269 (w3m-toggle-inline-images))
2270 (dolist (region (gnus-find-text-property-region (point-min) (point-max)
2272 (destructuring-bind (start end function) region
2273 (funcall function (get-text-property start 'image-url)
2276 (defun gnus-article-treat-fold-newsgroups ()
2277 "Unfold folded message headers.
2278 Only the headers that fit into the current window width will be
2281 (gnus-with-article-headers
2282 (while (gnus-article-goto-header "newsgroups\\|followup-to")
2284 (mail-header-narrow-to-field)
2285 (while (re-search-forward ", *" nil t)
2286 (replace-match ", " t t))
2287 (mail-header-fold-field)
2288 (goto-char (point-max))))))
2290 (defcustom gnus-article-truncate-lines (default-value 'truncate-lines)
2291 "Value of `truncate-lines' in Gnus Article buffer.
2292 Valid values are nil, t, `head', `first', `last', an integer or a
2293 predicate. See Info node `(gnus)Customizing Articles'."
2294 :version "23.1" ;; No Gnus
2295 :group 'gnus-article
2296 ;; :link '(custom-manual "(gnus)Customizing Articles")
2299 (defun gnus-article-toggle-truncate-lines (&optional arg)
2300 "Toggle whether to fold or truncate long lines in article the buffer.
2301 If ARG is non-nil and not a number, toggle
2302 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2303 long lines if and only if arg is positive."
2306 ((and (numberp arg) (> arg 0))
2307 (setq gnus-article-truncate-lines t))
2309 (setq gnus-article-truncate-lines nil))
2311 (setq gnus-article-truncate-lines
2312 (not gnus-article-truncate-lines))))
2313 (gnus-with-article-buffer
2315 ((and (numberp arg) (> arg 0))
2316 (setq truncate-lines nil))
2318 (setq truncate-lines t)))
2319 ;; In versions of Emacs 22 (CVS) before 2006-05-26,
2320 ;; `toggle-truncate-lines' needs an argument.
2321 (toggle-truncate-lines)))
2323 (defun gnus-article-treat-body-boundary ()
2324 "Place a boundary line at the end of the headers."
2326 (when (and gnus-body-boundary-delimiter
2327 (> (length gnus-body-boundary-delimiter) 0))
2328 (gnus-with-article-headers
2329 (goto-char (point-max))
2330 (let ((start (point)))
2331 (insert "X-Boundary: ")
2332 (gnus-add-text-properties start (point) '(invisible t intangible t))
2333 (insert (let (str (max (window-width)))
2334 (if (featurep 'xemacs)
2335 (setq max (1- max)))
2336 (while (>= max (length str))
2337 (setq str (concat str gnus-body-boundary-delimiter)))
2338 (substring str 0 max))
2340 (gnus-put-text-property start (point) 'gnus-decoration 'header)))))
2342 (defun article-fill-long-lines ()
2343 "Fill lines that are wider than the window width."
2346 (let ((inhibit-read-only t)
2347 (width (window-width (get-buffer-window (current-buffer)))))
2350 (let ((adaptive-fill-mode nil)) ;Why? -sm
2353 (when (>= (current-column) (min fill-column width))
2354 (narrow-to-region (min (1+ (point)) (point-max))
2356 (let ((goback (point-marker)))
2357 (fill-paragraph nil)
2358 (goto-char (marker-position goback)))
2360 (forward-line 1)))))))
2362 (defun article-capitalize-sentences ()
2363 "Capitalize the first word in each sentence."
2366 (let ((inhibit-read-only t)
2367 (paragraph-start "^[\n\^L]"))
2371 (forward-sentence)))))
2373 (defun article-remove-cr ()
2374 "Remove trailing CRs and then translate remaining CRs into LFs."
2377 (let ((inhibit-read-only t))
2378 (goto-char (point-min))
2379 (while (re-search-forward "\r+$" nil t)
2380 (replace-match "" t t))
2381 (goto-char (point-min))
2382 (while (search-forward "\r" nil t)
2383 (replace-match "\n" t t)))))
2385 (defun article-remove-trailing-blank-lines ()
2386 "Remove all trailing blank lines from the article."
2389 (let ((inhibit-read-only t))
2390 (goto-char (point-max))
2394 (while (and (not (bobp))
2395 (looking-at "^[ \t]*$")
2396 (not (gnus-annotation-in-region-p
2397 (point) (point-at-eol))))
2402 (defvar gnus-face-properties-alist)
2404 (defun article-display-face (&optional force)
2405 "Display any Face headers in the header."
2406 (interactive (list 'force))
2407 (let ((wash-face-p buffer-read-only))
2408 (gnus-with-article-headers
2409 ;; When displaying parts, this function can be called several times on
2410 ;; the same article, without any intended toggle semantic (as typing `W
2411 ;; D d' would have). So face deletion must occur only when we come from
2412 ;; an interactive command, that is when the *Article* buffer is
2414 (if (and wash-face-p (memq 'face gnus-article-wash-types))
2415 (gnus-delete-images 'face)
2416 (let ((from (message-fetch-field "from"))
2418 (save-current-buffer
2419 (when (and wash-face-p
2420 (gnus-buffer-live-p gnus-original-article-buffer)
2421 (not (re-search-forward "^Face:[\t ]*" nil t)))
2422 (set-buffer gnus-original-article-buffer))
2424 (mail-narrow-to-head)
2426 ;; Check whether this face is censored.
2427 (not (and gnus-article-x-face-too-ugly
2429 (setq from (message-fetch-field "from")))
2430 (string-match gnus-article-x-face-too-ugly
2432 (while (gnus-article-goto-header "Face")
2433 (push (mail-header-field-value) faces)))))
2435 (goto-char (point-min))
2437 (unless (setq from (gnus-article-goto-header "from"))
2440 (insert " [no `from' set]\n"))
2442 (when (setq png (gnus-convert-face-to-png (pop faces)))
2444 (apply 'gnus-create-image png 'png t
2445 (cdr (assq 'png gnus-face-properties-alist))))
2448 (gnus-add-wash-type 'face)
2449 (gnus-add-image 'face image)
2450 (gnus-put-image image nil 'face)))))))))))
2452 (defun article-display-x-face (&optional force)
2453 "Look for an X-Face header and display it if present."
2454 (interactive (list 'force))
2455 (let ((wash-face-p buffer-read-only)) ;; When type `W f'
2456 (gnus-with-article-headers
2457 ;; Delete the old process, if any.
2458 (when (process-status "article-x-face")
2459 (delete-process "article-x-face"))
2460 ;; See the comment in `article-display-face'.
2461 (if (and wash-face-p (memq 'xface gnus-article-wash-types))
2462 ;; We have already displayed X-Faces, so we remove them
2464 (gnus-delete-images 'xface)
2466 (let ((from (message-fetch-field "from"))
2468 (save-current-buffer
2469 (when (and wash-face-p
2470 (gnus-buffer-live-p gnus-original-article-buffer)
2471 (not (re-search-forward "^X-Face:[\t ]*" nil t)))
2472 ;; If type `W f', use gnus-original-article-buffer,
2473 ;; otherwise use the current buffer because displaying
2474 ;; RFC822 parts calls this function too.
2475 (set-buffer gnus-original-article-buffer))
2477 (mail-narrow-to-head)
2478 (and gnus-article-x-face-command
2480 ;; Check whether this face is censored.
2481 (not (and gnus-article-x-face-too-ugly
2483 (setq from (message-fetch-field "from")))
2484 (string-match gnus-article-x-face-too-ugly
2486 (while (gnus-article-goto-header "X-Face")
2487 (push (mail-header-field-value) x-faces)))))
2489 ;; We display the face.
2490 (cond ((functionp gnus-article-x-face-command)
2491 ;; The command is a lisp function, so we call it.
2492 (mapc gnus-article-x-face-command x-faces))
2493 ((stringp gnus-article-x-face-command)
2494 ;; The command is a string, so we interpret the command
2495 ;; as a, well, command, and fork it off.
2496 (let ((process-connection-type nil))
2497 (gnus-set-process-query-on-exit-flag
2499 "article-x-face" nil shell-file-name
2500 shell-command-switch gnus-article-x-face-command)
2502 ;; Sending multiple EOFs to xv doesn't work,
2503 ;; so we only do a single external face.
2505 (insert (car x-faces))
2506 (process-send-region "article-x-face"
2507 (point-min) (point-max)))
2508 (process-send-eof "article-x-face")))
2510 (error "`%s' set to `%s' is not a function"
2511 gnus-article-x-face-command
2512 'gnus-article-x-face-command)))))))))
2514 (defun article-decode-mime-words ()
2515 "Decode all MIME-encoded words in the article."
2517 (gnus-with-article-buffer
2518 (let ((inhibit-point-motion-hooks t)
2519 (mail-parse-charset gnus-newsgroup-charset)
2520 (mail-parse-ignored-charsets
2521 (with-current-buffer gnus-summary-buffer
2522 gnus-newsgroup-ignored-charsets)))
2523 (mail-decode-encoded-word-region (point-min) (point-max)))))
2525 (defun article-decode-charset (&optional prompt)
2526 "Decode charset-encoded text in the article.
2527 If PROMPT (the prefix), prompt for a coding system to use."
2529 (let ((inhibit-point-motion-hooks t) (case-fold-search t)
2530 (inhibit-read-only t)
2531 (mail-parse-charset gnus-newsgroup-charset)
2532 (mail-parse-ignored-charsets
2533 (save-excursion (condition-case nil
2534 (set-buffer gnus-summary-buffer)
2536 gnus-newsgroup-ignored-charsets))
2537 ct cte ctl charset format)
2540 (article-narrow-to-head)
2541 (setq ct (message-fetch-field "Content-Type" t)
2542 cte (message-fetch-field "Content-Transfer-Encoding" t)
2543 ctl (and ct (mail-header-parse-content-type ct))
2546 (mm-read-coding-system "Charset to decode: "))
2548 (mail-content-type-get ctl 'charset)))
2549 format (and ctl (mail-content-type-get ctl 'format)))
2551 (setq cte (mail-header-strip cte)))
2552 (if (and ctl (not (string-match "/" (car ctl))))
2554 (goto-char (point-max)))
2557 (narrow-to-region (point) (point-max))
2558 (when (and (eq mail-parse-charset 'gnus-decoded)
2559 (eq (mm-body-7-or-8) '8bit))
2560 ;; The text code could have been decoded.
2561 (setq charset mail-parse-charset))
2562 (when (and (or (not ctl)
2563 (equal (car ctl) "text/plain"))
2564 (not format)) ;; article with format will decode later.
2566 charset (and cte (intern (downcase
2567 (gnus-strip-whitespace cte))))
2570 (defun article-decode-encoded-words ()
2571 "Remove encoded-word encoding from headers."
2572 (let ((inhibit-point-motion-hooks t)
2573 (mail-parse-charset gnus-newsgroup-charset)
2574 (mail-parse-ignored-charsets
2575 (save-excursion (condition-case nil
2576 (set-buffer gnus-summary-buffer)
2578 gnus-newsgroup-ignored-charsets))
2579 (inhibit-read-only t)
2581 (goto-char (point-min))
2582 (when (search-forward "\n\n" nil 'move)
2589 (memq (char-after) '(?\t ? )))))
2590 (setq start (point))
2592 \\(?:Resent-\\)?\\(?:From\\|Cc\\|To\\|Bcc\\|\\(?:In-\\)?Reply-To\\|Sender\
2593 \\|Mail-Followup-To\\|Mail-Copies-To\\|Approved\\):")
2594 (funcall gnus-decode-address-function start end)
2595 (funcall gnus-decode-header-function start end))
2596 (goto-char (setq end start)))))
2598 (defun article-decode-group-name ()
2599 "Decode group names in Newsgroups, Followup-To and Xref headers."
2600 (let ((inhibit-point-motion-hooks t)
2601 (inhibit-read-only t)
2602 (method (gnus-find-method-for-group gnus-newsgroup-name))
2604 (when (and (or gnus-group-name-charset-method-alist
2605 gnus-group-name-charset-group-alist)
2606 (gnus-buffer-live-p gnus-original-article-buffer))
2608 (article-narrow-to-head)
2609 (dolist (header '("Newsgroups" "Followup-To" "Xref"))
2610 (with-current-buffer gnus-original-article-buffer
2611 (goto-char (point-min)))
2612 (setq regexp (concat "^" header
2613 ":\\([^\n]*\\(?:\n[\t ]+[^\n]+\\)*\\)\n"))
2614 (while (re-search-forward regexp nil t)
2615 (replace-match (save-match-data
2616 (gnus-decode-newsgroups
2617 ;; XXX how to use data in article buffer?
2618 (with-current-buffer gnus-original-article-buffer
2619 (re-search-forward regexp nil t)
2621 gnus-newsgroup-name method))
2623 (goto-char (point-min)))))))
2625 (autoload 'idna-to-unicode "idna")
2627 (defun article-decode-idna-rhs ()
2628 "Decode IDNA strings in RHS in various headers in current buffer.
2629 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2630 Mail-Reply-To: and Mail-Followup-To:."
2633 (let ((inhibit-point-motion-hooks t)
2634 (inhibit-read-only t))
2635 (article-narrow-to-head)
2636 (goto-char (point-min))
2637 (while (re-search-forward "@[^ \t\n\r,>]*\\(xn--[-A-Za-z0-9.]*\\)[ \t\n\r,>]" nil t)
2639 (when (save-match-data
2640 (and (setq ace (match-string 1))
2642 (and (re-search-backward "^[^ \t]" nil t)
2643 (looking-at "From\\|To\\|Cc\\|Reply-To\\|Mail-Reply-To\\|Mail-Followup-To")))
2644 (setq unicode (idna-to-unicode ace))))
2645 (unless (string= ace unicode)
2646 (replace-match unicode nil nil nil 1)))))))))
2648 (defun article-de-quoted-unreadable (&optional force read-charset)
2649 "Translate a quoted-printable-encoded article.
2650 If FORCE, decode the article whether it is marked as quoted-printable
2652 If READ-CHARSET, ask for a coding system."
2653 (interactive (list 'force current-prefix-arg))
2655 (let ((inhibit-read-only t) type charset)
2656 (if (gnus-buffer-live-p gnus-original-article-buffer)
2657 (with-current-buffer gnus-original-article-buffer
2659 (gnus-fetch-field "content-transfer-encoding"))
2660 (let* ((ct (gnus-fetch-field "content-type"))
2661 (ctl (and ct (mail-header-parse-content-type ct))))
2662 (setq charset (and ctl
2663 (mail-content-type-get ctl 'charset)))
2664 (if (stringp charset)
2665 (setq charset (intern (downcase charset)))))))
2667 (setq charset (mm-read-coding-system "Charset: " charset)))
2669 (setq charset gnus-newsgroup-charset))
2671 (and type (let ((case-fold-search t))
2672 (string-match "quoted-printable" type))))
2674 (quoted-printable-decode-region
2675 (point) (point-max) (mm-charset-to-coding-system charset nil t))))))
2677 (defun article-de-base64-unreadable (&optional force read-charset)
2678 "Translate a base64 article.
2679 If FORCE, decode the article whether it is marked as base64 not.
2680 If READ-CHARSET, ask for a coding system."
2681 (interactive (list 'force current-prefix-arg))
2683 (let ((inhibit-read-only t) type charset)
2684 (if (gnus-buffer-live-p gnus-original-article-buffer)
2685 (with-current-buffer gnus-original-article-buffer
2687 (gnus-fetch-field "content-transfer-encoding"))
2688 (let* ((ct (gnus-fetch-field "content-type"))
2689 (ctl (and ct (mail-header-parse-content-type ct))))
2690 (setq charset (and ctl
2691 (mail-content-type-get ctl 'charset)))
2692 (if (stringp charset)
2693 (setq charset (intern (downcase charset)))))))
2695 (setq charset (mm-read-coding-system "Charset: " charset)))
2697 (setq charset gnus-newsgroup-charset))
2699 (and type (let ((case-fold-search t))
2700 (string-match "base64" type))))
2703 (narrow-to-region (point) (point-max))
2704 (base64-decode-region (point-min) (point-max))
2705 (mm-decode-coding-region
2706 (point-min) (point-max)
2707 (mm-charset-to-coding-system charset nil t)))))))
2712 (defun article-decode-HZ ()
2713 "Translate a HZ-encoded article."
2717 (let ((inhibit-read-only t))
2718 (rfc1843-decode-region (point-min) (point-max)))))
2720 (defun article-unsplit-urls ()
2721 "Remove the newlines that some other mailers insert into URLs."
2724 (let ((inhibit-read-only t))
2725 (goto-char (point-min))
2726 (while (re-search-forward
2727 "\\(\\(https?\\|ftp\\)://\\S-+\\) *\n\\(\\S-+\\)" nil t)
2728 (replace-match "\\1\\3" t)))
2729 (when (gmm-called-interactively-p 'any)
2730 (gnus-treat-article nil))))
2732 (defun article-wash-html ()
2733 "Format an HTML article."
2736 (buffer-read-only nil))
2737 (when (gnus-buffer-live-p gnus-original-article-buffer)
2738 (with-current-buffer gnus-original-article-buffer
2739 (setq handles (mm-dissect-buffer t t))))
2741 (delete-region (point) (point-max))
2742 (mm-enable-multibyte)
2743 (mm-inline-text-html handles)))
2745 (defvar gnus-article-browse-html-temp-list nil
2746 "List of temporary files created by `gnus-article-browse-html-parts'.
2747 Internal variable.")
2749 (defcustom gnus-article-browse-delete-temp 'ask
2750 "What to do with temporary files from `gnus-article-browse-html-parts'.
2751 If nil, don't delete temporary files. If it is t, delete them on
2752 exit from the summary buffer. If it is the symbol `file', query
2753 on each file, if it is `ask' ask once when exiting from the
2755 :group 'gnus-article
2756 :version "23.1" ;; No Gnus
2757 :type '(choice (const :tag "Don't delete" nil)
2758 (const :tag "Don't ask" t)
2759 (const :tag "Ask" ask)
2760 (const :tag "Ask for each file" file)))
2762 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2764 (defun gnus-article-browse-delete-temp-files (&optional how)
2765 "Delete temp-files created by `gnus-article-browse-html-parts'."
2766 (when (and gnus-article-browse-html-temp-list
2768 (or how (setq how gnus-article-browse-delete-temp))
2770 (let ((files (length gnus-article-browse-html-temp-list)))
2773 "Delete the temporary HTML file? "
2774 (format "Delete all %s temporary HTML files? "
2776 (setq gnus-article-browse-html-temp-list nil)))
2778 (dolist (file gnus-article-browse-html-temp-list)
2779 (cond ((file-directory-p file)
2780 (when (or (not (eq how 'file))
2783 "Delete temporary HTML file(s) in directory `%s'? "
2784 (file-name-as-directory file))))
2785 (gnus-delete-directory file)))
2786 ((file-exists-p file)
2787 (when (or (not (eq how 'file))
2789 (format "Delete temporary HTML file `%s'? " file)))
2790 (delete-file file)))))
2791 ;; Also remove file from the list when not deleted or if file doesn't
2793 (setq gnus-article-browse-html-temp-list nil))
2794 gnus-article-browse-html-temp-list)
2796 (defun gnus-article-browse-html-save-cid-content (cid handles directory)
2797 "Find CID content in HANDLES and save it in a file in DIRECTORY.
2802 (dolist (handle handles)
2804 ((not (listp handle)))
2805 ;; Exclude broken handles that `gnus-summary-enter-digest-group'
2807 ((not (or (bufferp (car handle)) (stringp (car handle)))))
2808 ((equal (mm-handle-media-supertype handle) "multipart")
2809 (when (setq file (gnus-article-browse-html-save-cid-content
2810 cid handle directory))
2811 (throw 'found file)))
2812 ((equal (concat "<" cid ">") (mm-handle-id handle))
2815 (or (mm-handle-filename handle)
2817 (make-temp-name "cid")
2818 (car (rassoc (car (mm-handle-type handle))
2819 mailcap-mime-extensions))))
2821 (mm-save-part-to-file handle file)
2822 (throw 'found file))))))))
2824 (defun gnus-article-browse-html-parts (list &optional header)
2825 "View all \"text/html\" parts from LIST.
2826 Recurse into multiparts. The optional HEADER that should be a decoded
2827 message header will be added to the bodies of the \"text/html\" parts."
2828 ;; Internal function used by `gnus-article-browse-html-article'.
2829 (let (type file charset content cid-dir tmp-file showed)
2830 ;; Find and show the html-parts.
2831 (dolist (handle list)
2832 ;; If HTML, show it:
2833 (cond ((not (listp handle)))
2834 ((or (equal (car (setq type (mm-handle-type handle))) "text/html")
2835 (and (equal (car type) "message/external-body")
2837 (setq file (mm-handle-filename handle)))
2838 (or (mm-handle-cache handle)
2839 (condition-case code
2840 (progn (mm-extern-cache-contents handle) t)
2842 (gnus-message 3 "%s" (error-message-string code))
2843 (when (>= gnus-verbose 3) (sit-for 2))
2846 (setq handle (mm-handle-cache handle)
2847 type (mm-handle-type handle))
2848 (equal (car type) "text/html"))))
2849 (setq charset (mail-content-type-get type 'charset)
2850 content (mm-get-part handle))
2852 (if (eq charset 'gnus-decoded)
2853 (mm-enable-multibyte)
2854 (mm-disable-multibyte))
2856 ;; resolve cid contents
2857 (let ((case-fold-search t)
2859 (goto-char (point-min))
2860 (while (re-search-forward "\
2861 <img[\t\n ]+\\(?:[^\t\n >]+[\t\n ]+\\)*src=\"\\(cid:\\([^\"]+\\)\\)\""
2864 (setq cid-dir (mm-make-temp-file "cid" t))
2865 (add-to-list 'gnus-article-browse-html-temp-list cid-dir))
2868 (when (setq cid-file
2869 (gnus-article-browse-html-save-cid-content
2871 (with-current-buffer gnus-article-buffer
2872 gnus-article-mime-handles)
2874 (when (eq system-type 'cygwin)
2876 (concat "/" (substring
2877 (with-output-to-string
2878 (call-process "cygpath" nil
2882 (replace-match (concat "file://" cid-file)
2884 (unless content (setq content (buffer-string))))
2885 (when (or charset header (not file))
2886 (setq tmp-file (mm-make-temp-file
2887 ;; Do we need to care for 8.3 filenames?
2888 "mm-" nil ".html")))
2889 ;; Add a meta html tag to specify charset and a header.
2892 (let (title eheader body hcharset coding)
2894 (mm-enable-multibyte)
2895 (setq case-fold-search t)
2896 (insert header "\n")
2897 (setq title (message-fetch-field "subject"))
2898 (goto-char (point-min))
2899 (while (re-search-forward "\\(<\\)\\|\\(>\\)\\|\\(&\\)\\|\n"
2901 (replace-match (cond ((match-beginning 1) "<")
2902 ((match-beginning 2) ">")
2903 ((match-beginning 3) "&")
2905 (goto-char (point-min))
2906 (while (re-search-forward "^[\t ]+" nil t)
2909 (delete-region (match-beginning 0)
2912 (goto-char (point-min))
2913 (insert "<div align=\"left\">\n")
2914 (goto-char (point-max))
2915 (insert "</div>\n<hr>\n")
2916 ;; We have to examine charset one by one since
2917 ;; charset specified in parts might be different.
2918 (if (eq charset 'gnus-decoded)
2919 (setq charset 'utf-8
2920 eheader (mm-encode-coding-string (buffer-string)
2923 (mm-encode-coding-string title charset))
2924 body (mm-encode-coding-string content charset))
2925 (setq hcharset (mm-find-mime-charset-region (point-min)
2927 (cond ((= (length hcharset) 1)
2928 (setq hcharset (car hcharset)
2929 coding (mm-charset-to-coding-system
2931 ((> (length hcharset) 1)
2932 (setq hcharset 'utf-8
2938 (mm-charset-to-coding-system charset
2940 (if (eq coding body)
2941 (setq eheader (mm-encode-coding-string
2942 (buffer-string) coding)
2944 (mm-encode-coding-string
2947 (setq charset 'utf-8
2948 eheader (mm-encode-coding-string
2949 (buffer-string) charset)
2951 (mm-encode-coding-string
2953 body (mm-encode-coding-string
2954 (mm-decode-coding-string
2957 (setq charset hcharset
2958 eheader (mm-encode-coding-string
2959 (buffer-string) coding)
2961 (mm-encode-coding-string
2964 (setq eheader (mm-string-as-unibyte (buffer-string))
2967 (mm-disable-multibyte)
2970 (mm-add-meta-html-tag handle charset t))
2972 (goto-char (point-min))
2973 (unless (search-forward "<title>" nil t)
2974 (re-search-forward "<head>\\s-*" nil t)
2975 (insert "<title>" title "</title>\n")))
2976 (goto-char (point-min))
2977 (or (re-search-forward
2978 "<body\\(?:\\s-+[^>]+\\|\\s-*\\)>\\s-*" nil t)
2980 "</head\\(?:\\s-+[^>]+\\|\\s-*\\)>\\s-*" nil t))
2982 (mm-write-region (point-min) (point-max)
2983 tmp-file nil nil nil 'binary t))))
2985 (mm-with-unibyte-buffer
2986 (insert (if (eq charset 'gnus-decoded)
2987 (mm-encode-coding-string content
2988 (setq charset 'utf-8))
2990 (if (or (mm-add-meta-html-tag handle charset)
2992 (mm-write-region (point-min) (point-max)
2993 tmp-file nil nil nil 'binary t)
2994 (setq tmp-file nil))))
2996 (mm-save-part-to-file handle tmp-file)))
2998 (add-to-list 'gnus-article-browse-html-temp-list tmp-file))
2999 (add-hook 'gnus-summary-prepare-exit-hook
3000 'gnus-article-browse-delete-temp-files)
3001 (add-hook 'gnus-exit-gnus-hook
3003 (gnus-article-browse-delete-temp-files t)))
3004 ;; FIXME: Warn if there's an <img> tag?
3005 (browse-url-of-file (or tmp-file (expand-file-name file)))
3007 ;; If multipart, recurse
3008 ((equal (mm-handle-media-supertype handle) "multipart")
3009 (when (gnus-article-browse-html-parts handle header)
3011 ((equal (mm-handle-media-type handle) "message/rfc822")
3012 (mm-with-multibyte-buffer
3013 (mm-insert-part handle)
3014 (setq handle (mm-dissect-buffer t t))
3015 (when (and (bufferp (car handle))
3016 (stringp (car (mm-handle-type handle))))
3017 (setq handle (list handle)))
3019 (article-decode-encoded-words)
3020 (let ((gnus-visible-headers
3021 (or (get 'gnus-visible-headers 'standard-value)
3022 gnus-visible-headers)))
3023 (article-hide-headers))
3024 (goto-char (point-min))
3025 (search-forward "\n\n" nil 'move)
3026 (skip-chars-backward "\t\n ")
3027 (setq header (buffer-substring (point-min) (point)))))
3029 (gnus-article-browse-html-parts handle header)
3030 (mm-destroy-parts handle))
3034 (defun gnus-article-browse-html-article (&optional arg)
3035 "View \"text/html\" parts of the current article with a WWW browser.
3036 Inline images embedded in a message using the cid scheme, as they are
3037 generally considered to be safe, will be processed properly.
3038 The message header is added to the beginning of every html part unless
3039 the prefix argument ARG is given.
3041 Warning: Spammers use links to images (using the http scheme) in HTML
3042 articles to verify whether you have read the message. As
3043 `gnus-article-browse-html-article' passes the HTML content to the
3044 browser without eliminating these \"web bugs\" you should only
3045 use it for mails from trusted senders.
3047 If you always want to display HTML parts in the browser, set
3048 `mm-text-html-renderer' to nil.
3050 This command creates temporary files to pass HTML contents including
3051 images if any to the browser, and deletes them when exiting the group
3053 ;; Cf. `mm-w3m-safe-url-regexp'
3056 (gnus-summary-show-article)
3057 (let ((gnus-visible-headers (or (get 'gnus-visible-headers 'standard-value)
3058 gnus-visible-headers))
3059 ;; As we insert a <hr>, there's no need for the body boundary.
3060 (gnus-treat-body-boundary nil))
3061 (gnus-summary-show-article)))
3062 (with-current-buffer gnus-article-buffer
3063 (let ((header (unless arg
3066 (buffer-substring-no-properties
3067 (goto-char (point-min))
3068 (if (search-forward "\n\n" nil t)
3070 (goto-char (point-max))
3071 (skip-chars-backward "\t\n ")
3074 (set-buffer gnus-original-article-buffer)
3075 (setq parts (mm-dissect-buffer t t))
3076 ;; If singlepart, enforce a list.
3077 (when (and (bufferp (car parts))
3078 (stringp (car (mm-handle-type parts))))
3079 (setq parts (list parts)))
3081 (unless (gnus-article-browse-html-parts parts header)
3082 (gnus-error 3 "Mail doesn't contain a \"text/html\" part!"))
3083 (mm-destroy-parts parts)
3085 (gnus-summary-show-article)))))
3087 (defun article-hide-list-identifiers ()
3088 "Remove list identifiers from the Subject header.
3089 The `gnus-list-identifiers' variable specifies what to do."
3091 (let ((inhibit-point-motion-hooks t)
3092 (regexp (gnus-group-get-list-identifiers gnus-newsgroup-name))
3093 (inhibit-read-only t))
3097 (article-narrow-to-head)
3098 (goto-char (point-min))
3099 (while (re-search-forward
3100 (concat "^Subject: +\\(R[Ee]: +\\)*\\(" regexp " *\\)")
3102 (delete-region (match-beginning 2) (match-end 0))
3103 (beginning-of-line))
3104 (when (re-search-forward
3105 "^Subject: +\\(\\(R[Ee]: +\\)+\\)R[Ee]: +" nil t)
3106 (delete-region (match-beginning 1) (match-end 1))))))))
3108 (defun article-hide-pem (&optional arg)
3109 "Toggle hiding of any PEM headers and signatures in the current article.
3110 If given a negative prefix, always show; if given a positive prefix,
3112 (interactive (gnus-article-hidden-arg))
3113 (unless (gnus-article-check-hidden-text 'pem arg)
3115 (let ((inhibit-read-only t) end)
3116 (goto-char (point-min))
3117 ;; Hide the horrendously ugly "header".
3118 (when (and (search-forward
3119 "\n-----BEGIN PRIVACY-ENHANCED MESSAGE-----\n"
3121 (setq end (1+ (match-beginning 0))))
3122 (gnus-add-wash-type 'pem)
3123 (gnus-article-hide-text-type
3125 (if (search-forward "\n\n" nil t)
3129 ;; Hide the trailer as well
3130 (when (search-forward "\n-----END PRIVACY-ENHANCED MESSAGE-----\n"
3132 (gnus-article-hide-text-type
3133 (match-beginning 0) (match-end 0) 'pem)))))))
3135 (defun article-strip-banner ()
3136 "Strip the banners specified by the `banner' group parameter and by
3137 `gnus-article-address-banner-alist'."
3141 (let ((inhibit-point-motion-hooks t))
3142 (when (gnus-parameter-banner gnus-newsgroup-name)
3143 (article-really-strip-banner
3144 (gnus-parameter-banner gnus-newsgroup-name)))
3145 (when gnus-article-address-banner-alist
3146 ;; Note that the From header is decoded here, so it is
3147 ;; required that the *-extract-address-components function
3148 ;; supports non-ASCII text.
3149 (let ((from (save-restriction
3151 (article-narrow-to-head)
3152 (mail-fetch-field "from"))))
3155 (cadr (funcall gnus-extract-address-components
3158 (dolist (pair gnus-article-address-banner-alist)
3159 (when (string-match (car pair) from)
3161 (article-really-strip-banner (cdr pair)))))))))))))
3163 (defun article-really-strip-banner (banner)
3164 "Strip the banner specified by the argument."
3167 (let ((inhibit-point-motion-hooks t)
3168 (gnus-signature-limit nil)
3169 (inhibit-read-only t))
3172 ((eq banner 'signature)
3173 (when (gnus-article-narrow-to-signature)
3176 (delete-region (point) (point-max))))
3178 (if (setq banner (cdr (assq banner gnus-article-banner-alist)))
3179 (while (re-search-forward banner nil t)
3180 (delete-region (match-beginning 0) (match-end 0)))))
3182 (while (re-search-forward banner nil t)
3183 (delete-region (match-beginning 0) (match-end 0)))))))))
3185 (defun article-babel ()
3186 "Translate article using an online translation service."
3189 (gnus-with-article-buffer
3190 (when (article-goto-body)
3191 (let* ((start (point))
3193 (orig (buffer-substring start end))
3194 (trans (babel-as-string orig)))
3196 (narrow-to-region start end)
3197 (delete-region start end)
3200 (defun article-hide-signature (&optional arg)
3201 "Hide the signature in the current article.
3202 If given a negative prefix, always show; if given a positive prefix,
3204 (interactive (gnus-article-hidden-arg))
3205 (unless (gnus-article-check-hidden-text 'signature arg)
3208 (let ((inhibit-read-only t))
3209 (when (gnus-article-narrow-to-signature)
3210 (gnus-article-hide-text-type
3211 (point-min) (point-max) 'signature))))))
3212 (gnus-set-mode-line 'article))
3214 (defun article-strip-headers-in-body ()
3215 "Strip offensive headers from bodies."
3219 (let ((case-fold-search t))
3220 (when (looking-at "x-no-archive:")
3221 (gnus-delete-line)))))
3223 (defun article-strip-leading-blank-lines ()
3224 "Remove all blank lines from the beginning of the article."
3227 (let ((inhibit-point-motion-hooks t)
3228 (inhibit-read-only t))
3229 (when (article-goto-body)
3230 (while (and (not (eobp))
3231 (looking-at "[ \t]*$"))
3232 (gnus-delete-line))))))
3234 (defun article-narrow-to-head ()
3235 "Narrow the buffer to the head of the message.
3236 Point is left at the beginning of the narrowed-to region."
3238 (goto-char (point-min))
3240 ;; Absolutely no headers displayed.
3244 ((search-forward "\n\n" nil 1)
3246 ;; Nothing but headers.
3249 (goto-char (point-min)))
3251 (defun article-goto-body ()
3252 "Place point at the start of the body."
3253 (goto-char (point-min))
3255 ;; This variable is only bound when dealing with separate
3257 (article-goto-body-goes-to-point-min-p
3259 ((search-forward "\n\n" nil t)
3262 (goto-char (point-max))
3265 (defun article-strip-multiple-blank-lines ()
3266 "Replace consecutive blank lines with one empty line."
3269 (let ((inhibit-point-motion-hooks t)
3270 (inhibit-read-only t))
3271 ;; First make all blank lines empty.
3273 (while (re-search-forward "^[ \t]+$" nil t)
3274 (unless (gnus-annotation-in-region-p
3275 (match-beginning 0) (match-end 0))
3276 (replace-match "" nil t)))
3277 ;; Then replace multiple empty lines with a single empty line.
3279 (while (re-search-forward "\n\n\\(\n+\\)" nil t)
3280 (unless (gnus-annotation-in-region-p
3281 (match-beginning 0) (match-end 0))
3282 (delete-region (match-beginning 1) (match-end 1)))))))
3284 (defun article-strip-leading-space ()
3285 "Remove all white space from the beginning of the lines in the article."
3288 (let ((inhibit-point-motion-hooks t)
3289 (inhibit-read-only t))
3291 (while (re-search-forward "^[ \t]+" nil t)
3292 (replace-match "" t t)))))
3294 (defun article-strip-trailing-space ()
3295 "Remove all white space from the end of the lines in the article."
3298 (let ((inhibit-point-motion-hooks t)
3299 (inhibit-read-only t))
3301 (while (re-search-forward "[ \t]+$" nil t)
3302 (replace-match "" t t)))))
3304 (defun article-strip-blank-lines ()
3305 "Strip leading, trailing and multiple blank lines."
3307 (article-strip-leading-blank-lines)
3308 (article-remove-trailing-blank-lines)
3309 (article-strip-multiple-blank-lines))
3311 (defun article-strip-all-blank-lines ()
3312 "Strip all blank lines."
3315 (let ((inhibit-point-motion-hooks t)
3316 (inhibit-read-only t))
3318 (while (re-search-forward "^[ \t]*\n" nil t)
3319 (replace-match "" t t)))))
3321 (defun gnus-article-narrow-to-signature ()
3322 "Narrow to the signature; return t if a signature is found, else nil."
3323 (let ((inhibit-point-motion-hooks t))
3324 (when (gnus-article-search-signature)
3326 ;; Check whether we have some limits to what we consider
3327 ;; to be a signature.
3328 (let ((limits (if (listp gnus-signature-limit) gnus-signature-limit
3329 (list gnus-signature-limit)))
3331 (while (setq limit (pop limits))
3332 (if (or (and (integerp limit)
3333 (< (- (point-max) (point)) limit))
3335 (< (count-lines (point) (point-max)) limit))
3336 (and (functionp limit)
3338 (and (stringp limit)
3339 (not (re-search-forward limit nil t))))
3340 () ; This limit did not succeed.
3344 (narrow-to-region (point) (point-max))
3347 (defun gnus-article-search-signature ()
3348 "Search the current buffer for the signature separator.
3349 Put point at the beginning of the signature separator."
3350 (let ((cur (point)))
3351 (goto-char (point-max))
3352 (if (if (stringp gnus-signature-separator)
3353 (re-search-backward gnus-signature-separator nil t)
3354 (let ((seps gnus-signature-separator))
3356 (not (re-search-backward (car seps) nil t)))
3363 (defun gnus-article-hidden-arg ()
3364 "Return the current prefix arg as a number, or 0 if no prefix."
3365 (list (if current-prefix-arg
3366 (prefix-numeric-value current-prefix-arg)
3369 (defun gnus-article-check-hidden-text (type arg)
3370 "Return nil if hiding is necessary.
3371 Arg can be nil or a number. nil and positive means hide, negative
3372 means show, 0 means toggle."
3375 (let ((hide (gnus-article-hidden-text-p type)))
3381 (gnus-article-show-hidden-text type)
3384 (if (eq hide 'hidden)
3386 (gnus-article-show-hidden-text type)
3390 (defun gnus-article-hidden-text-p (type)
3391 "Say whether the current buffer contains hidden text of type TYPE."
3392 (let ((pos (text-property-any (point-min) (point-max) 'article-type type)))
3394 (not (get-text-property pos 'invisible))
3395 (not (get-text-property pos 'dummy-invisible)))
3397 (text-property-any (1+ pos) (point-max) 'article-type type)))
3402 (defun gnus-article-show-hidden-text (type &optional _dummy)
3403 "Show all hidden text of type TYPE.
3404 Originally it is hide instead of DUMMY."
3405 (let ((inhibit-read-only t)
3406 (inhibit-point-motion-hooks t))
3407 (gnus-remove-text-properties-when
3409 (point-min) (point-max)
3410 (cons 'article-type (cons type
3411 gnus-hidden-properties)))
3412 (gnus-delete-wash-type type)))
3414 (defconst article-time-units
3415 `((year . ,(* 365.25 24 60 60))
3416 (week . ,(* 7 24 60 60))
3417 (day . ,(* 24 60 60))
3421 "Mapping from time units to seconds.")
3423 (defun gnus-article-forward-header ()
3424 "Move point to the start of the next header.
3425 If the current header is a continuation header, this can be several
3430 (if (looking-at "[ \t]+[^ \t]")
3434 (defun article-treat-date ()
3435 (article-date-ut (if (gnus-buffer-live-p gnus-summary-buffer)
3436 (with-current-buffer gnus-summary-buffer
3437 gnus-article-date-headers)
3438 gnus-article-date-headers)
3441 (defun article-date-ut (&optional type _highlight date-position)
3442 "Convert DATE date to TYPE in the current article.
3443 The default type is `ut'. See `gnus-article-date-headers' for
3445 (interactive (list 'ut t))
3446 (let* ((case-fold-search t)
3447 (inhibit-read-only t)
3448 (inhibit-point-motion-hooks t)
3449 (visible-date (mail-fetch-field "Date"))
3450 pos date bface eface)
3454 (goto-char date-position)
3455 (setq date (get-text-property (point) 'original-date))
3456 (when (looking-at "[^:]+:[\t ]*")
3457 (setq bface (get-text-property (match-beginning 0) 'face)
3458 eface (get-text-property (match-end 0) 'face)))
3459 (delete-region (point)
3461 (gnus-article-forward-header)
3463 (article-transform-date date type bface eface))
3466 (goto-char (point-min))
3467 (while (or (get-text-property (setq pos (point)) 'original-date)
3468 (and (setq pos (next-single-property-change
3469 (point) 'original-date))
3471 (narrow-to-region pos (if (search-forward "\n\n" nil t)
3472 (1+ (match-beginning 0))
3474 (while (setq pos (text-property-not-all pos (point-max)
3475 'gnus-date-type nil))
3476 (setq date (get-text-property pos 'original-date))
3478 (when (looking-at "[^:]+:[\t ]*")
3479 (setq bface (get-text-property (match-beginning 0) 'face)
3480 eface (get-text-property (match-end 0) 'face)))
3481 (delete-region pos (or (text-property-any pos (point-max)
3482 'gnus-date-type nil)
3484 (unless date ;; the 1st time
3485 (goto-char (point-min))
3486 (while (re-search-forward "^Date:[\t ]*" nil t)
3487 (setq date (get-text-property (match-beginning 0)
3489 bface (get-text-property (match-beginning 0) 'face)
3490 eface (get-text-property (match-end 0) 'face))
3491 (delete-region (point-at-bol) (progn
3492 (gnus-article-forward-header)
3494 (when (and (not date)
3496 (setq date visible-date))
3498 (article-transform-date date type bface eface))
3499 (goto-char (point-max))
3502 (defun article-transform-date (date type bface eface)
3503 (dolist (this-type (cond
3513 (add-text-properties
3516 (insert (article-make-date-line date (or this-type 'ut)) "\n")
3518 (list 'original-date date 'gnus-date-type this-type))))
3521 "\\([^:]+:\\)[\t ]*\\(\\(?:[^\t\n ]+[\t ]+\\)*[^\t\n ]+\\)?")
3522 (put-text-property (match-beginning 1) (match-end 1) 'face bface)
3523 (when (match-beginning 2)
3524 (put-text-property (match-beginning 2) (match-end 2) 'face eface))
3525 (while (and (zerop (forward-line 1))
3526 (looking-at "[\t ]+\\(\\(?:[^\t\n ]+[\t ]+\\)*[^\t\n ]+\\)?"))
3527 (when (match-beginning 1)
3528 (put-text-property (match-beginning 1) (match-end 1) 'face eface))))))
3530 (defun article-make-date-line (date type)
3531 "Return a DATE line of TYPE."
3532 (unless (memq type '(local ut original user-defined iso8601 lapsed english
3534 (error "Unknown conversion type: %s" type))
3536 (let ((time (ignore-errors (date-to-time date))))
3538 ;; Convert to the local timezone.
3540 (concat "Date: " (message-make-date time)))
3541 ;; Convert to Universal Time.
3546 (let* ((e (parse-time-string date))
3547 (tm (apply 'encode-time e))
3549 (ls (- (cadr tm) (car (current-time-zone time)))))
3550 (cond ((< ls 0) (list (1- ms) (+ ls 65536)))
3551 ((> ls 65535) (list (1+ ms) (- ls 65536)))
3555 ;; Get the original date from the article.
3556 ((eq type 'original)
3557 (concat "Date: " (if (string-match "\n+$" date)
3558 (substring date 0 (match-beginning 0))
3560 ;; Let the user define the format.
3561 ((eq type 'user-defined)
3562 (let ((format (or (condition-case nil
3563 (with-current-buffer gnus-summary-buffer
3564 gnus-article-time-format)
3566 gnus-article-time-format)))
3567 (if (functionp format)
3568 (funcall format time)
3569 (concat "Date: " (format-time-string format time)))))
3572 (let ((tz (car (current-time-zone time))))
3575 (format-time-string "%Y%m%dT%H%M%S" time)
3576 (format "%s%02d%02d"
3577 (if (> tz 0) "+" "-") (/ (abs tz) 3600)
3578 (/ (% (abs tz) 3600) 60)))))
3579 ;; Do a lapsed format.
3581 (concat "Date: " (article-lapsed-string time)))
3582 ;; A combined date/lapsed format.
3583 ((eq type 'combined-lapsed)
3584 (let ((date-string (article-make-date-line date 'original))
3590 (concat " (" (article-lapsed-string time segments) ")"))
3591 (> (+ (length date-string)
3592 (length lapsed-string))
3595 (setq segments (1- segments)))
3597 (concat date-string lapsed-string)
3599 ;; Display the date in proper English
3601 (let ((dtime (decode-time time)))
3604 (number-to-string (nth 3 dtime))
3605 (let ((digit (% (nth 3 dtime) 10)))
3607 ((memq (nth 3 dtime) '(11 12 13)) "th")
3613 (nth (1- (nth 4 dtime)) gnus-english-month-names)
3615 (number-to-string (nth 5 dtime))
3617 (format "%02d" (nth 2 dtime))
3619 (format "%02d" (nth 1 dtime)))))))
3621 (format "Date: %s (from Gnus)" date))))
3623 (defun article-lapsed-string (time &optional max-segments)
3624 ;; If the date is seriously mangled, the timezone functions are
3625 ;; liable to bug out, so we ignore all errors.
3626 (let* ((now (current-time))
3627 (real-time (subtract-time now time))
3628 (real-sec (and real-time
3629 (+ (* (float (car real-time)) 65536)
3631 (sec (and real-time (abs real-sec)))
3634 (unless max-segments
3635 (setq max-segments (length article-time-units)))
3643 ;; This is a bit convoluted, but basically we go
3644 ;; through the time units for years, weeks, etc,
3645 ;; and divide things to see whether that results
3646 ;; in positive answers.
3649 (if (or (zerop (setq num (ffloor (/ sec (cdr unit)))))
3650 (>= segments max-segments))
3651 ;; The (remaining) seconds are too few to
3652 ;; be divided into this time unit.
3654 ;; It's big enough, so we output it.
3655 (setq sec (- sec (* num (cdr unit))))
3657 (concat (if prev ", " "") (int-to-string
3659 " " (symbol-name (car unit))
3660 (if (> num 1) "s" ""))
3662 segments (1+ segments)))))
3663 article-time-units "")
3664 ;; If dates are odd, then it might appear like the
3665 ;; article was sent in the future.
3668 " in the future"))))))
3670 (defun article-date-local (&optional highlight)
3671 "Convert the current article date to the local timezone."
3672 (interactive (list t))
3673 (article-date-ut 'local highlight))
3675 (defun article-date-english (&optional highlight)
3676 "Convert the current article date to something that is proper English."
3677 (interactive (list t))
3678 (article-date-ut 'english highlight))
3680 (defun article-date-original (&optional highlight)
3681 "Convert the current article date to what it was originally.
3682 This is only useful if you have used some other date conversion
3683 function and want to see what the date was before converting."
3684 (interactive (list t))
3685 (article-date-ut 'original highlight))
3687 (defun article-date-lapsed (&optional highlight)
3688 "Convert the current article date to time lapsed since it was sent."
3689 (interactive (list t))
3690 (article-date-ut 'lapsed highlight))
3692 (defun article-date-combined-lapsed (&optional highlight)
3693 "Convert the current article date to time lapsed since it was sent."
3694 (interactive (list t))
3695 (article-date-ut 'combined-lapsed highlight))
3697 (defun article-update-date-lapsed ()
3698 "Function to be run from a timer to update the lapsed time line."
3700 (let ((buffer (current-buffer)))
3704 (set-buffer (window-buffer w))
3705 (when (derived-mode-p 'gnus-article-mode)
3706 (let ((old-line (count-lines (point-min) (point)))
3707 (old-column (- (point) (line-beginning-position)))
3708 (window-start (window-start w))
3711 (while (setq pos (text-property-not-all pos (point-max)
3712 'gnus-date-type nil))
3713 (setq next (or (next-single-property-change pos
3716 (setq type (get-text-property pos 'gnus-date-type))
3717 (when (memq type '(lapsed combined-lapsed user-defined))
3718 (article-date-ut type t pos)
3719 (setq end (or (next-single-property-change pos
3723 (if (/= window-start next)
3724 (setq window-start nil)
3725 (set-window-start w end)))
3728 (goto-char (point-min))
3729 (when (> old-column 0)
3730 (setq old-line (1- old-line)))
3731 (forward-line old-line)
3733 (when (> (current-column) old-column)
3735 (forward-char old-column)))))
3737 (set-buffer buffer))))
3739 (defun gnus-start-date-timer (&optional n)
3740 "Start a timer to update the Date headers in the article buffers.
3741 The numerical prefix says how frequently (in seconds) the function
3746 (gnus-stop-date-timer)
3747 (setq article-lapsed-timer
3748 (run-at-time 1 n 'article-update-date-lapsed)))
3750 (defun gnus-stop-date-timer ()
3751 "Stop the Date timer."
3753 (when article-lapsed-timer
3754 (nnheader-cancel-timer article-lapsed-timer)
3755 (setq article-lapsed-timer nil)))
3757 (defun article-date-user (&optional highlight)
3758 "Convert the current article date to the user-defined format.
3759 This format is defined by the `gnus-article-time-format' variable."
3760 (interactive (list t))
3761 (article-date-ut 'user highlight))
3763 (defun article-date-iso8601 (&optional highlight)
3764 "Convert the current article date to ISO8601."
3765 (interactive (list t))
3766 (article-date-ut 'iso8601 highlight))
3768 (defmacro gnus-article-save-original-date (&rest forms)
3769 "Save the original date as a text property and evaluate FORMS."
3770 `(let* ((case-fold-search t)
3772 (goto-char (point-min))
3773 (when (and (re-search-forward "^date:[\t\n ]+" nil t)
3776 (date (when (and start
3777 (re-search-forward "[\t ]*\n\\(?:[^\t ]\\|\\'\\)"
3779 (buffer-substring-no-properties start
3780 (match-beginning 0)))))
3781 (goto-char (point-max))
3782 (skip-chars-backward "\n")
3783 (put-text-property (point-min) (point) 'original-date date)
3785 (goto-char (point-max))
3786 (skip-chars-backward "\n")
3787 (put-text-property (point-min) (point) 'original-date date)))
3789 ;; (defun article-show-all ()
3790 ;; "Show all hidden text in the article buffer."
3793 ;; (let ((inhibit-read-only t))
3794 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3796 (defun article-remove-leading-whitespace ()
3797 "Remove excessive whitespace from all headers."
3801 (let ((inhibit-read-only t))
3802 (article-narrow-to-head)
3803 (goto-char (point-min))
3804 (while (re-search-forward "^[^ :]+: \\([ \t]+\\)" nil t)
3805 (delete-region (match-beginning 1) (match-end 1)))))))
3807 (defun article-emphasize (&optional arg)
3808 "Emphasize text according to `gnus-emphasis-alist'."
3809 (interactive (gnus-article-hidden-arg))
3810 (unless (gnus-article-check-hidden-text 'emphasis arg)
3814 (with-current-buffer gnus-summary-buffer
3815 gnus-article-emphasis-alist)
3817 gnus-emphasis-alist))
3818 (inhibit-read-only t)
3819 (props (append '(article-type emphasis)
3820 gnus-hidden-properties))
3821 regexp elem beg invisible visible face)
3824 (while (setq elem (pop alist))
3826 (setq regexp (car elem)
3827 invisible (nth 1 elem)
3828 visible (nth 2 elem)
3830 (while (re-search-forward regexp nil t)
3831 (when (and (match-beginning visible) (match-beginning invisible))
3832 (gnus-article-hide-text
3833 (match-beginning invisible) (match-end invisible) props)
3834 (gnus-article-unhide-text-type
3835 (match-beginning visible) (match-end visible) 'emphasis)
3836 (gnus-put-overlay-excluding-newlines
3837 (match-beginning visible) (match-end visible) 'face face)
3838 (gnus-add-wash-type 'emphasis)
3839 (goto-char (match-end invisible)))))))))
3841 (defun gnus-article-setup-highlight-words (&optional highlight-words)
3842 "Setup newsgroup emphasis alist."
3843 (unless gnus-article-emphasis-alist
3844 (let ((name (and gnus-newsgroup-name
3845 (gnus-group-real-name gnus-newsgroup-name))))
3846 (make-local-variable 'gnus-article-emphasis-alist)
3847 (setq gnus-article-emphasis-alist
3849 (let ((alist gnus-group-highlight-words-alist) elem highlight)
3850 (while (setq elem (pop alist))
3851 (when (and name (string-match (car elem) name))
3853 highlight (copy-sequence (cdr elem)))))
3855 (copy-sequence highlight-words)
3856 (if gnus-newsgroup-name
3857 (copy-sequence (gnus-group-find-parameter
3858 gnus-newsgroup-name 'highlight-words t)))
3859 gnus-emphasis-alist)))))
3861 (defvar gnus-summary-article-menu)
3862 (defvar gnus-summary-post-menu)
3864 ;;; Saving functions.
3866 (defun gnus-article-save (save-buffer file &optional num)
3867 "Save the currently selected article."
3868 (when (or (get gnus-default-article-saver :headers)
3869 (not gnus-save-all-headers))
3870 ;; Remove headers according to `gnus-saved-headers' or the value
3871 ;; of the `:headers' property that the saver function might have.
3872 (let ((gnus-visible-headers
3873 (or (symbol-value (get gnus-default-article-saver :headers))
3874 gnus-saved-headers gnus-visible-headers))
3875 ;; Ignore group parameter. See `article-hide-headers'.
3876 (gnus-summary-buffer nil))
3877 (with-current-buffer save-buffer
3878 (article-hide-headers 1 t))))
3879 (save-window-excursion
3880 (if (not gnus-default-article-saver)
3881 (error "No default saver is defined")
3882 ;; !!! Magic! The saving functions all save
3883 ;; `gnus-save-article-buffer' (or so they think), but we
3884 ;; bind that variable to our save-buffer.
3885 (set-buffer gnus-article-buffer)
3886 (let* ((gnus-save-article-buffer save-buffer)
3889 ((not gnus-prompt-before-saving) 'default)
3890 ((eq gnus-prompt-before-saving 'always) nil)
3892 (gnus-number-of-articles-to-be-saved
3893 (when (eq gnus-prompt-before-saving t)
3895 (set-buffer gnus-article-current-summary)
3896 (funcall gnus-default-article-saver filename)))))
3898 (defun gnus-read-save-file-name (prompt &optional filename
3899 function group headers variable
3902 (funcall function group headers (symbol-value variable)))
3907 ((eq filename 'default)
3913 (when (symbol-value dir-var)
3914 (setq default-name (expand-file-name
3915 (file-name-nondirectory default-name)
3916 (symbol-value dir-var))))
3917 (let* ((split-name (gnus-get-split-value gnus-split-methods))
3920 (if (and gnus-number-of-articles-to-be-saved
3921 (> gnus-number-of-articles-to-be-saved 1))
3922 (format "these %d articles"
3923 gnus-number-of-articles-to-be-saved)
3926 ;; Let the split methods have their say.
3928 ;; No split name was found.
3931 (concat prompt " (default "
3932 (file-name-nondirectory default-name) "): ")
3933 (file-name-directory default-name)
3935 ;; A single group name is returned.
3936 ((stringp split-name)
3938 (funcall function split-name headers
3939 (symbol-value variable)))
3941 (concat prompt " (default "
3942 (file-name-nondirectory default-name) "): ")
3943 (file-name-directory default-name)
3945 ;; A single split name was found
3946 ((= 1 (length split-name))
3947 (let* ((name (expand-file-name
3949 gnus-article-save-directory))
3950 (dir (cond ((file-directory-p name)
3951 (file-name-as-directory name))
3952 ((file-exists-p name) name)
3953 (t gnus-article-save-directory))))
3955 (concat prompt " (default " name "): ")
3957 ;; A list of splits was found.
3959 (setq split-name (nreverse split-name))
3961 (let ((file-name-history
3962 (nconc split-name file-name-history)))
3966 (concat prompt " (`M-p' for defaults): ")
3967 gnus-article-save-directory
3969 gnus-article-save-directory)))
3970 (car (push result file-name-history)))))))
3971 ;; Create the directory.
3972 (gnus-make-directory (file-name-directory file))
3973 ;; If we have read a directory, we append the default file name.
3974 (when (file-directory-p file)
3975 (setq file (expand-file-name (file-name-nondirectory
3977 (file-name-as-directory file))))
3978 ;; Possibly translate some characters.
3979 (nnheader-translate-file-chars file))))))
3980 (gnus-make-directory (file-name-directory result))
3982 (set variable result))
3984 (set dir-var (file-name-directory result)))
3987 (defun gnus-article-archive-name (_group)
3988 "Return the first instance of an \"Archive-name\" in the current buffer."
3989 (let ((case-fold-search t))
3990 (when (re-search-forward "archive-name: *\\([^ \n\t]+\\)[ \t]*$" nil t)
3991 (nnheader-concat gnus-article-save-directory
3992 (match-string 1)))))
3994 (defun gnus-article-nndoc-name (group)
3995 "If GROUP is an nndoc group, return the name of the parent group."
3996 (when (eq (car (gnus-find-method-for-group group)) 'nndoc)
3997 (gnus-group-get-parameter group 'save-article-group)))
3999 (defun gnus-summary-save-in-rmail (&optional filename)
4000 "Append this article to Rmail file.
4001 Optional argument FILENAME specifies file name.
4002 Directory to save to is default to `gnus-article-save-directory'."
4003 (setq filename (gnus-read-save-file-name
4004 "Save %s in rmail file" filename
4005 gnus-rmail-save-name gnus-newsgroup-name
4006 gnus-current-headers 'gnus-newsgroup-last-rmail))
4007 (with-current-buffer gnus-save-article-buffer
4011 ;; Note that unlike gnus-summary-save-in-mail, there is no
4012 ;; check to see if filename is Babyl. Rmail in Emacs 23 does
4014 (gnus-output-to-rmail filename))))
4017 (defun gnus-summary-save-in-mail (&optional filename)
4018 "Append this article to Unix mail file.
4019 Optional argument FILENAME specifies file name.
4020 Directory to save to is default to `gnus-article-save-directory'."
4021 (setq filename (gnus-read-save-file-name
4022 "Save %s in Unix mail file" filename
4023 gnus-mail-save-name gnus-newsgroup-name
4024 gnus-current-headers 'gnus-newsgroup-last-mail))
4025 (with-current-buffer gnus-save-article-buffer
4029 (if (and (file-readable-p filename)
4030 (file-regular-p filename)
4031 (mail-file-babyl-p filename))
4032 (gnus-output-to-rmail filename)
4033 (gnus-output-to-mail filename)))))
4036 (put 'gnus-summary-save-in-file :decode t)
4037 (put 'gnus-summary-save-in-file :headers 'gnus-saved-headers)
4038 (defun gnus-summary-save-in-file (&optional filename overwrite)
4039 "Append this article to file.
4040 Optional argument FILENAME specifies file name.
4041 Directory to save to is default to `gnus-article-save-directory'."
4042 (setq filename (gnus-read-save-file-name
4043 "Save %s in file" filename
4044 gnus-file-save-name gnus-newsgroup-name
4045 gnus-current-headers 'gnus-newsgroup-last-file))
4046 (with-current-buffer gnus-save-article-buffer
4050 (when (and overwrite
4051 (file-exists-p filename))
4052 (delete-file filename))
4053 (gnus-output-to-file filename))))
4056 (put 'gnus-summary-write-to-file :decode t)
4057 (put 'gnus-summary-write-to-file :function 'gnus-summary-save-in-file)
4058 (put 'gnus-summary-write-to-file :headers 'gnus-saved-headers)
4059 (defun gnus-summary-write-to-file (&optional filename)
4060 "Write this article to a file, overwriting it if the file exists.
4061 Optional argument FILENAME specifies file name.
4062 The directory to save in defaults to `gnus-article-save-directory'."
4063 (setq filename (gnus-read-save-file-name
4064 "Save %s in file" filename
4065 gnus-file-save-name gnus-newsgroup-name
4066 gnus-current-headers nil 'gnus-newsgroup-last-directory))
4067 (gnus-summary-save-in-file filename t))
4069 (put 'gnus-summary-save-body-in-file :decode t)
4070 (defun gnus-summary-save-body-in-file (&optional filename overwrite)
4071 "Append this article body to a file.
4072 Optional argument FILENAME specifies file name.
4073 The directory to save in defaults to `gnus-article-save-directory'."
4074 (setq filename (gnus-read-save-file-name
4075 "Save %s body in file" filename
4076 gnus-file-save-name gnus-newsgroup-name
4077 gnus-current-headers 'gnus-newsgroup-last-file))
4078 (with-current-buffer gnus-save-article-buffer
4082 (when (article-goto-body)
4083 (narrow-to-region (point) (point-max)))
4084 (when (and overwrite
4085 (file-exists-p filename))
4086 (delete-file filename))
4087 (gnus-output-to-file filename))))
4090 (put 'gnus-summary-write-body-to-file :decode t)
4091 (put 'gnus-summary-write-body-to-file
4092 :function 'gnus-summary-save-body-in-file)
4093 (defun gnus-summary-write-body-to-file (&optional filename)
4094 "Write this article body to a file, overwriting it if the file exists.
4095 Optional argument FILENAME specifies file name.
4096 The directory to save in defaults to `gnus-article-save-directory'."
4097 (setq filename (gnus-read-save-file-name
4098 "Save %s body in file" filename
4099 gnus-file-save-name gnus-newsgroup-name
4100 gnus-current-headers nil 'gnus-newsgroup-last-directory))
4101 (gnus-summary-save-body-in-file filename t))
4103 (put 'gnus-summary-save-in-pipe :decode t)
4104 (put 'gnus-summary-save-in-pipe :headers 'gnus-saved-headers)
4105 (defun gnus-summary-save-in-pipe (&optional command raw)
4106 "Pipe this article to subprocess COMMAND.
4107 Valid values for COMMAND include:
4109 The executable command name and possibly arguments.
4111 You will be prompted for the command in the minibuffer.
4112 the symbol `default'
4113 It will be replaced with the command which the variable
4114 `gnus-summary-pipe-output-default-command' holds or the command
4115 last used for saving.
4116 Non-nil value for RAW overrides `:decode' and `:headers' properties
4117 and the raw article including all headers will be piped."
4118 (let ((article (gnus-summary-article-number))
4120 (get 'gnus-summary-save-in-pipe :decode)))
4121 save-buffer default)
4123 (if (vectorp (gnus-summary-article-header article))
4124 (save-current-buffer
4125 (gnus-summary-select-article decode decode nil article)
4126 (insert-buffer-substring
4130 gnus-original-article-buffer)
4132 (nnheader-set-temp-buffer " *Gnus Save*"))))
4133 ;; Remove unwanted headers.
4134 (when (and (not raw)
4135 (or (get 'gnus-summary-save-in-pipe :headers)
4136 (not gnus-save-all-headers)))
4137 (let ((gnus-visible-headers
4138 (or (symbol-value (get 'gnus-summary-save-in-pipe
4140 gnus-saved-headers gnus-visible-headers))
4141 (gnus-summary-buffer nil))
4142 (article-hide-headers 1 t))))
4143 (error "%d is not a real article" article))
4144 (error "No article to pipe"))
4145 (setq default (or gnus-summary-pipe-output-default-command
4146 gnus-last-shell-command))
4147 (unless (stringp command)
4149 (if (and (eq command 'default) default)
4151 (gnus-read-shell-command "Shell command on this article: "
4153 (when (string-equal command "")
4155 (setq command default)
4156 (error "A command is required")))
4157 (with-current-buffer save-buffer
4160 (shell-command-on-region (point-min) (point-max) command nil)))
4161 (gnus-kill-buffer save-buffer))
4162 (setq gnus-summary-pipe-output-default-command command))
4164 (defun gnus-summary-pipe-to-muttprint (&optional command)
4165 "Pipe this article to muttprint."
4166 (unless (stringp command)
4167 (setq command (read-string
4168 "Print using command: " gnus-summary-muttprint-program
4169 nil gnus-summary-muttprint-program)))
4170 (let ((gnus-summary-pipe-output-default-command
4171 gnus-summary-pipe-output-default-command))
4172 (gnus-summary-save-in-pipe command))
4173 (setq gnus-summary-muttprint-program command))
4175 ;;; Article file names when saving.
4177 (defun gnus-capitalize-newsgroup (newsgroup)
4178 "Capitalize NEWSGROUP name."
4179 (when (not (zerop (length newsgroup)))
4180 (concat (char-to-string (upcase (aref newsgroup 0)))
4181 (substring newsgroup 1))))
4183 (defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
4184 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4185 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
4186 Otherwise, it is like ~/News/news/group/num."
4189 (concat (if (gnus-use-long-file-name 'not-save)
4190 (gnus-capitalize-newsgroup newsgroup)
4191 (gnus-newsgroup-directory-form newsgroup))
4192 "/" (int-to-string (mail-header-number headers)))
4193 gnus-article-save-directory)))
4195 (string-equal (file-name-directory default)
4196 (file-name-directory last-file))
4197 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
4199 (or last-file default))))
4201 (defun gnus-numeric-save-name (newsgroup headers &optional last-file)
4202 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4203 If variable `gnus-use-long-file-name' is non-nil, it is
4204 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4207 (concat (if (gnus-use-long-file-name 'not-save)
4209 (gnus-newsgroup-directory-form newsgroup))
4210 "/" (int-to-string (mail-header-number headers)))
4211 gnus-article-save-directory)))
4213 (string-equal (file-name-directory default)
4214 (file-name-directory last-file))
4215 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
4217 (or last-file default))))
4219 (defun gnus-plain-save-name (newsgroup _headers &optional last-file)
4220 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4221 If variable `gnus-use-long-file-name' is non-nil, it is
4222 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4225 (if (gnus-use-long-file-name 'not-save)
4228 (expand-file-name "news" (gnus-newsgroup-directory-form newsgroup))
4230 gnus-article-save-directory)))
4232 (defun gnus-sender-save-name (_newsgroup headers &optional _last-file)
4233 "Generate file name from sender."
4234 (let ((from (mail-header-from headers)))
4236 (if (and from (string-match "\\([^ <]+\\)@" from))
4237 (match-string 1 from)
4239 gnus-article-save-directory)))
4241 (defun article-verify-x-pgp-sig ()
4243 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4245 (if (gnus-buffer-live-p gnus-original-article-buffer)
4246 (let ((sig (with-current-buffer gnus-original-article-buffer
4247 (gnus-fetch-field "X-PGP-Sig")))
4251 (mml2015-clear-verify-function))
4253 (insert-buffer-substring gnus-original-article-buffer)
4254 (setq items (split-string sig))
4255 (message-narrow-to-head)
4256 (let ((inhibit-point-motion-hooks t)
4257 (case-fold-search t))
4258 ;; Don't verify multiple headers.
4259 (setq headers (mapconcat (lambda (header)
4261 (mail-fetch-field header)
4263 (split-string (nth 1 items) ",") "")))
4264 (delete-region (point-min) (point-max))
4265 (insert "-----BEGIN PGP SIGNED MESSAGE-----\n\n")
4266 (insert "X-Signed-Headers: " (nth 1 items) "\n")
4271 (if (looking-at "^-")
4274 (insert "\n-----BEGIN PGP SIGNATURE-----\n")
4275 (insert "Version: " (car items) "\n\n")
4276 (insert (mapconcat 'identity (cddr items) "\n"))
4277 (insert "\n-----END PGP SIGNATURE-----\n")
4278 (let ((mm-security-handle (list (format "multipart/signed"))))
4279 (mml2015-clean-buffer)
4280 (let ((coding-system-for-write (or gnus-newsgroup-charset
4282 (funcall (mml2015-clear-verify-function)))
4284 (or (mm-handle-multipart-ctl-parameter
4285 mm-security-handle 'gnus-details)
4286 (mm-handle-multipart-ctl-parameter
4287 mm-security-handle 'gnus-info)))))
4289 (let ((inhibit-read-only t) bface eface)
4291 (message-narrow-to-head)
4292 (goto-char (point-max))
4294 (setq bface (get-text-property (point-at-bol) 'face)
4295 eface (get-text-property (1- (point-at-eol)) 'face))
4296 (message-remove-header "X-Gnus-PGP-Verify")
4297 (if (re-search-forward "^X-PGP-Sig:" nil t)
4299 (goto-char (point-max)))
4300 (narrow-to-region (point) (point))
4301 (insert "X-Gnus-PGP-Verify: " info "\n")
4302 (goto-char (point-min))
4305 (if (not (looking-at "^[ \t]"))
4309 (goto-char (point-min))
4310 (when (looking-at "\\([^:]+\\): *")
4311 (put-text-property (match-beginning 1) (1+ (match-end 1))
4313 (put-text-property (match-end 0) (point-max)
4314 'face eface)))))))))
4316 (autoload 'canlock-verify "canlock" nil t) ;; for XEmacs.
4318 (defun article-verify-cancel-lock ()
4319 "Verify Cancel-Lock header."
4321 (if (gnus-buffer-live-p gnus-original-article-buffer)
4322 (canlock-verify gnus-original-article-buffer)))
4329 (setq afunc (car func)
4332 gfunc (intern (format "gnus-%s" func))))
4334 (when (fboundp afunc)
4335 `(lambda (&optional interactive &rest args)
4336 ,(documentation afunc t)
4337 (interactive (list t))
4338 (with-current-buffer gnus-article-buffer
4340 (call-interactively ',afunc)
4341 (apply ',afunc args))))))))
4342 '(article-hide-headers
4343 article-verify-x-pgp-sig
4344 article-verify-cancel-lock
4345 article-hide-boring-headers
4346 article-treat-overstrike
4347 article-treat-ansi-sequences
4348 article-fill-long-lines
4349 article-capitalize-sentences
4351 article-remove-leading-whitespace
4352 article-display-x-face
4353 article-display-face
4354 article-de-quoted-unreadable
4355 article-de-base64-unreadable
4358 article-unsplit-urls
4359 article-hide-list-identifiers
4360 article-strip-banner
4363 article-hide-signature
4364 article-strip-headers-in-body
4365 article-remove-trailing-blank-lines
4366 article-strip-leading-blank-lines
4367 article-strip-multiple-blank-lines
4368 article-strip-leading-space
4369 article-strip-trailing-space
4370 article-strip-blank-lines
4371 article-strip-all-blank-lines
4373 article-date-english
4374 article-date-iso8601
4375 article-date-original
4378 article-decode-mime-words
4379 article-decode-charset
4380 article-decode-encoded-words
4383 article-date-combined-lapsed
4385 article-treat-dumbquotes
4386 article-treat-non-ascii
4387 article-normalize-headers
4388 ;;(article-show-all . gnus-article-show-all-headers)
4392 ;;; Gnus article mode
4395 (put 'gnus-article-mode 'mode-class 'special)
4397 (set-keymap-parent gnus-article-mode-map widget-keymap)
4399 (gnus-define-keys gnus-article-mode-map
4400 " " gnus-article-goto-next-page
4401 [?\S-\ ] gnus-article-goto-prev-page
4402 "\177" gnus-article-goto-prev-page
4403 [delete] gnus-article-goto-prev-page
4404 "\C-c^" gnus-article-refer-article
4405 "h" gnus-article-show-summary
4406 "s" gnus-article-show-summary
4407 "\C-c\C-m" gnus-article-mail
4408 "?" gnus-article-describe-briefly
4409 "<" beginning-of-buffer
4411 "\C-c\C-i" gnus-info-find-node
4413 "R" gnus-article-reply-with-original
4414 "F" gnus-article-followup-with-original
4415 "\C-hk" gnus-article-describe-key
4416 "\C-hc" gnus-article-describe-key-briefly
4417 "\C-hb" gnus-article-describe-bindings
4419 "e" gnus-article-read-summary-keys
4420 "\C-d" gnus-article-read-summary-keys
4421 "\M-*" gnus-article-read-summary-keys
4422 "\M-#" gnus-article-read-summary-keys
4423 "\M-^" gnus-article-read-summary-keys
4424 "\M-g" gnus-article-read-summary-keys)
4426 (substitute-key-definition
4427 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4429 (defvar gnus-article-send-map)
4431 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4432 "W" gnus-article-wide-reply-with-original)
4433 (if (featurep 'xemacs)
4434 (set-keymap-default-binding gnus-article-send-map
4435 'gnus-article-read-summary-send-keys)
4436 (define-key gnus-article-send-map [t] 'gnus-article-read-summary-send-keys))
4438 (defun gnus-article-make-menu-bar ()
4439 (unless (boundp 'gnus-article-commands-menu)
4440 (gnus-summary-make-menu-bar))
4441 (unless (boundp 'gnus-article-article-menu)
4443 gnus-article-article-menu gnus-article-mode-map ""
4445 ["Scroll forwards" gnus-article-goto-next-page t]
4446 ["Scroll backwards" gnus-article-goto-prev-page t]
4447 ["Show summary" gnus-article-show-summary t]
4448 ["Fetch Message-ID at point" gnus-article-refer-article t]
4449 ["Mail to address at point" gnus-article-mail t]
4450 ["Send a bug report" gnus-bug t]))
4453 gnus-article-treatment-menu gnus-article-mode-map ""
4454 ;; Fixme: this should use :active (and maybe :visible).
4456 ["Hide headers" gnus-article-hide-headers t]
4457 ["Hide signature" gnus-article-hide-signature t]
4458 ["Hide citation" gnus-article-hide-citation t]
4459 ["Treat overstrike" gnus-article-treat-overstrike t]
4460 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4461 ["Remove carriage return" gnus-article-remove-cr t]
4462 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4463 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4464 ["Remove base64" gnus-article-de-base64-unreadable t]
4465 ["Treat html" gnus-article-wash-html t]
4466 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4467 ["Decode HZ" gnus-article-decode-HZ t]))
4469 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4471 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4473 (gnus-run-hooks 'gnus-article-menu-hook)))
4475 (defvar bookmark-make-record-function)
4476 (defvar shr-put-image-function)
4478 (define-derived-mode gnus-article-mode fundamental-mode "Article"
4479 "Major mode for displaying an article.
4481 All normal editing commands are switched off.
4483 The following commands are available in addition to all summary mode
4485 \\<gnus-article-mode-map>
4486 \\[gnus-article-next-page]\t Scroll the article one page forwards
4487 \\[gnus-article-prev-page]\t Scroll the article one page backwards
4488 \\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
4489 \\[gnus-article-show-summary]\t Display the summary buffer
4490 \\[gnus-article-mail]\t Send a reply to the address near point
4491 \\[gnus-article-describe-briefly]\t Describe the current mode briefly
4492 \\[gnus-info-find-node]\t Go to the Gnus info node"
4493 (gnus-simplify-mode-line)
4494 (make-local-variable 'minor-mode-alist)
4495 (when (gnus-visual-p 'article-menu 'menu)
4496 (gnus-article-make-menu-bar)
4497 (when gnus-summary-tool-bar-map
4498 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4499 (gnus-update-format-specifications nil 'article-mode)
4500 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4501 (set (make-local-variable 'gnus-page-broken) nil)
4502 (make-local-variable 'gnus-article-current-summary)
4503 (make-local-variable 'gnus-article-mime-handles)
4504 (make-local-variable 'gnus-article-decoded-p)
4505 (make-local-variable 'gnus-article-mime-handle-alist)
4506 (make-local-variable 'gnus-article-wash-types)
4507 (make-local-variable 'gnus-article-image-alist)
4508 (make-local-variable 'gnus-article-charset)
4509 (make-local-variable 'gnus-article-ignored-charsets)
4510 (set (make-local-variable 'bookmark-make-record-function)
4511 'gnus-summary-bookmark-make-record)
4512 ;; Prevent Emacs 22 from displaying non-break space with `nobreak-space'
4514 (set (make-local-variable 'nobreak-char-display) nil)
4515 ;; Enable `gnus-article-remove-images' to delete images shr.el renders.
4516 (set (make-local-variable 'shr-put-image-function) 'gnus-shr-put-image)
4517 (setq cursor-in-non-selected-windows nil)
4518 (gnus-set-default-directory)
4519 (buffer-disable-undo)
4520 (setq buffer-read-only t
4521 show-trailing-whitespace nil)
4522 (mm-enable-multibyte))
4524 (defun gnus-article-setup-buffer ()
4525 "Initialize the article buffer."
4526 (let* ((name (if gnus-single-article-buffer "*Article*"
4528 (gnus-group-decoded-name gnus-newsgroup-name)
4531 (progn (string-match "\\*Article" name)
4532 (concat " *Original Article"
4533 (substring name (match-end 0))))))
4534 (setq gnus-article-buffer name)
4535 (setq gnus-original-article-buffer original)
4536 (setq gnus-article-mime-handle-alist nil)
4537 (with-current-buffer gnus-summary-buffer
4538 ;; This might be a variable local to the summary buffer.
4539 (unless gnus-single-article-buffer
4540 (setq gnus-article-buffer name)
4541 (setq gnus-original-article-buffer original)
4542 (gnus-set-global-variables)))
4543 (gnus-article-setup-highlight-words)
4544 ;; Init original article buffer.
4545 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4546 (mm-enable-multibyte)
4547 (setq major-mode 'gnus-original-article-mode)
4548 (make-local-variable 'gnus-original-article))
4549 (if (and (get-buffer name)
4550 (with-current-buffer name
4551 (if gnus-article-edit-mode
4552 (if (y-or-n-p "Article mode edit in progress; discard? ")
4554 (set-buffer-modified-p nil)
4555 (gnus-kill-buffer name)
4558 (error "Action aborted"))
4560 (let ((summary gnus-summary-buffer))
4561 (with-current-buffer name
4562 (set (make-local-variable 'gnus-article-edit-mode) nil)
4563 (gnus-article-stop-animations)
4564 (when gnus-article-mime-handles
4565 (mm-destroy-parts gnus-article-mime-handles)
4566 (setq gnus-article-mime-handles nil))
4567 ;; Set it to nil in article-buffer!
4568 (setq gnus-article-mime-handle-alist nil)
4569 (buffer-disable-undo)
4570 (setq buffer-read-only t)
4571 (unless (derived-mode-p 'gnus-article-mode)
4572 (gnus-article-mode))
4573 (set (make-local-variable 'gnus-summary-buffer) summary)
4574 (setq truncate-lines gnus-article-truncate-lines)
4576 (let ((summary gnus-summary-buffer))
4577 (with-current-buffer (gnus-get-buffer-create name)
4579 (setq truncate-lines gnus-article-truncate-lines)
4580 (set (make-local-variable 'gnus-summary-buffer) summary)
4581 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4582 (when article-lapsed-timer
4583 (gnus-stop-date-timer))
4584 (when gnus-article-update-date-headers
4585 (gnus-start-date-timer gnus-article-update-date-headers))
4586 (current-buffer))))))
4588 (defun gnus-article-stop-animations ()
4589 (dolist (timer (and (boundp 'timer-list)
4591 (when (eq (gnus-timer--function timer) 'image-animate-timeout)
4592 (cancel-timer timer))))
4594 (defun gnus-stop-downloads ()
4595 (when (boundp 'url-queue)
4596 (set (intern "url-queue" obarray) nil)))
4598 ;; Set article window start at LINE, where LINE is the number of lines
4599 ;; from the head of the article.
4600 (defun gnus-article-set-window-start (&optional line)
4601 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4602 (when article-window
4605 (with-current-buffer gnus-article-buffer
4606 (goto-char (point-min))
4609 (gnus-message 6 "Moved to bookmark")
4610 (search-forward "\n\n" nil t)
4614 (defvar gnus-tmp-internal-hook)
4616 (defun gnus-article-prepare (article &optional all-headers _header)
4617 "Prepare ARTICLE in article mode buffer.
4618 ARTICLE should either be an article number or a Message-ID.
4619 If ARTICLE is an id, HEADER should be the article headers.
4620 If ALL-HEADERS is non-nil, no headers are hidden."
4621 (save-excursion ;FIXME: Shouldn't that be save-current-buffer?
4622 ;; Make sure we start in a summary buffer.
4623 (unless (derived-mode-p 'gnus-summary-mode)
4624 (set-buffer gnus-summary-buffer))
4625 (setq gnus-summary-buffer (current-buffer))
4626 (let* ((summary-buffer (current-buffer))
4627 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4628 (group gnus-newsgroup-name)
4631 (gnus-article-setup-buffer)
4632 (set-buffer gnus-article-buffer)
4633 ;; Deactivate active regions.
4634 (when (and (boundp 'transient-mark-mode)
4635 transient-mark-mode)
4636 (setq mark-active nil))
4637 (if (not (setq result (let ((inhibit-read-only t))
4638 (gnus-request-article-this-buffer
4640 ;; There is no such article.
4642 (when (and (numberp article)
4643 (not (memq article gnus-newsgroup-sparse)))
4644 (setq gnus-article-current
4645 (cons gnus-newsgroup-name article))
4646 (set-buffer gnus-summary-buffer)
4647 (setq gnus-current-article article)
4648 (if (and (memq article gnus-newsgroup-undownloaded)
4649 (not (gnus-online (gnus-find-method-for-group
4650 gnus-newsgroup-name))))
4652 (gnus-summary-set-agent-mark article)
4653 (message "Message marked for downloading"))
4654 (gnus-summary-mark-article article gnus-canceled-mark)
4655 (unless (memq article gnus-newsgroup-sparse)
4656 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4657 (if (or (eq result 'pseudo)
4658 (eq result 'nneething))
4660 (with-current-buffer summary-buffer
4661 (push article gnus-newsgroup-history)
4662 (setq gnus-last-article gnus-current-article
4663 gnus-current-article 0
4664 gnus-current-headers nil
4665 gnus-article-current nil)
4666 (if (eq result 'nneething)
4667 (gnus-configure-windows 'summary)
4668 (gnus-configure-windows 'article))
4669 (gnus-set-global-variables))
4670 (let ((gnus-article-mime-handle-alist-1
4671 gnus-article-mime-handle-alist))
4672 (gnus-set-mode-line 'article)))
4673 ;; The result from the `request' was an actual article -
4674 ;; or at least some text that is now displayed in the
4676 (when (and (numberp article)
4677 (not (eq article gnus-current-article)))
4678 ;; Seems like a new article has been selected.
4679 ;; `gnus-current-article' must be an article number.
4680 (with-current-buffer summary-buffer
4681 (push article gnus-newsgroup-history)
4682 (setq gnus-last-article gnus-current-article
4683 gnus-current-article article
4684 gnus-current-headers
4685 (gnus-summary-article-header gnus-current-article)
4686 gnus-article-current
4687 (cons gnus-newsgroup-name gnus-current-article))
4688 (unless (vectorp gnus-current-headers)
4689 (setq gnus-current-headers nil))
4690 (gnus-summary-goto-subject gnus-current-article)
4691 (when (gnus-summary-show-thread)
4692 ;; If the summary buffer really was folded, the
4693 ;; previous goto may not actually have gone to
4694 ;; the right article, but the thread root instead.
4696 (gnus-summary-goto-subject gnus-current-article))
4697 (gnus-run-hooks 'gnus-mark-article-hook)
4698 (gnus-set-mode-line 'summary)
4699 (when (gnus-visual-p 'article-highlight 'highlight)
4700 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4701 ;; Set the global newsgroup variables here.
4702 (gnus-set-global-variables)
4703 (setq gnus-have-all-headers
4704 (or all-headers gnus-show-all-headers))))
4706 (gnus-configure-windows 'article))
4707 (when (or (numberp article)
4709 (gnus-article-prepare-display)
4711 (goto-char (point-min))
4712 (when gnus-break-pages
4713 (gnus-narrow-to-page)))
4714 (let ((gnus-article-mime-handle-alist-1
4715 gnus-article-mime-handle-alist))
4716 (gnus-set-mode-line 'article))
4720 (set-window-point (get-buffer-window (current-buffer)) (point))
4721 (gnus-configure-windows 'article)
4722 (gnus-run-hooks 'gnus-article-prepare-hook)
4725 (defvar gnus-mime-display-attachment-buttons-in-header)
4728 (defun gnus-article-prepare-display ()
4729 "Make the current buffer look like a nice article."
4730 ;; Hooks for getting information from the article.
4731 ;; This hook must be called before being narrowed.
4732 (let ((gnus-article-buffer (current-buffer))
4734 (inhibit-read-only t))
4735 (unless (derived-mode-p 'gnus-article-mode)
4736 (gnus-article-mode))
4737 (setq buffer-read-only nil
4738 gnus-article-wash-types nil
4739 gnus-article-image-alist nil)
4740 (gnus-run-hooks 'gnus-tmp-internal-hook)
4741 (when gnus-display-mime-function
4742 (funcall gnus-display-mime-function))
4743 ;; Add attachment buttons to the header.
4744 (when gnus-mime-display-attachment-buttons-in-header
4745 (gnus-mime-buttonize-attachments-in-header))))
4748 ;;; Gnus Sticky Article Mode
4751 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4752 "Mode for sticky articles."
4753 ;; Release bindings that won't work.
4754 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4755 gnus-sticky-article-mode-map)
4756 (substitute-key-definition 'gnus-article-refer-article 'undefined
4757 gnus-sticky-article-mode-map)
4758 (dolist (k '("e" "h" "s" "F" "R"))
4759 (define-key gnus-sticky-article-mode-map k nil))
4760 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4761 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4762 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4763 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4765 (defun gnus-sticky-article (arg)
4766 "Make the current article sticky.
4767 If a prefix ARG is given, ask for a name for this sticky article buffer."
4769 (gnus-summary-show-thread)
4770 (gnus-summary-select-article nil nil 'pseudo)
4771 (let (new-art-buf-name)
4772 (gnus-eval-in-buffer-window gnus-article-buffer
4773 (setq new-art-buf-name
4777 (read-from-minibuffer "Sticky article buffer name: ")
4778 (gnus-with-article-headers
4779 (gnus-article-goto-header "subject")
4780 (setq new-art-buf-name
4781 (buffer-substring-no-properties
4782 (line-beginning-position) (line-end-position)))
4783 (goto-char (point-min))
4784 (gnus-article-goto-header "from")
4785 (setq new-art-buf-name
4787 new-art-buf-name ", "
4788 (buffer-substring-no-properties
4789 (line-beginning-position) (line-end-position))))
4790 (goto-char (point-min))
4791 (gnus-article-goto-header "date")
4792 (setq new-art-buf-name
4794 new-art-buf-name ", "
4795 (buffer-substring-no-properties
4796 (line-beginning-position) (line-end-position))))))
4798 (if (and (gnus-buffer-live-p new-art-buf-name)
4799 (with-current-buffer new-art-buf-name
4800 (derived-mode-p 'gnus-sticky-article-mode)))
4801 (switch-to-buffer new-art-buf-name)
4802 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4803 (gnus-sticky-article-mode))
4804 (setq gnus-article-buffer new-art-buf-name))
4805 (gnus-summary-recenter)
4806 (gnus-summary-position-point))
4808 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4809 "Kill the given sticky article BUFFER.
4810 If none is given, assume the current buffer and kill it if it has
4811 `gnus-sticky-article-mode'."
4814 (setq buffer (current-buffer)))
4815 (with-current-buffer buffer
4816 (when (derived-mode-p 'gnus-sticky-article-mode)
4817 (gnus-kill-buffer buffer))))
4819 (defun gnus-kill-sticky-article-buffers (arg)
4820 "Kill all sticky article buffers.
4821 If a prefix ARG is given, ask for confirmation."
4823 (dolist (buf (gnus-buffers))
4824 (with-current-buffer buf
4825 (when (derived-mode-p 'gnus-sticky-article-mode)
4827 (gnus-kill-buffer buf)
4828 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4829 (gnus-kill-buffer buf)))))))
4832 ;;; Gnus MIME viewing functions
4835 (defvar gnus-mime-button-line-format "%{%([%p. %d%T]%)%}%e\n"
4836 "Format of the MIME buttons.
4838 Valid specifiers include:
4840 %T MIME type, along with additional info
4841 %n The `name' parameter
4842 %d The description, if any
4843 %l The length of the encoded part
4844 %p The part identifier number
4845 %e Dots if the part isn't displayed
4847 General format specifiers can also be used. See Info node
4848 `(gnus)Formatting Variables'.")
4850 (defvar gnus-tmp-type)
4851 (defvar gnus-tmp-type-long)
4852 (defvar gnus-tmp-name)
4853 (defvar gnus-tmp-description)
4854 (defvar gnus-tmp-id)
4855 (defvar gnus-tmp-length)
4856 (defvar gnus-tmp-dots)
4857 (defvar gnus-tmp-info)
4858 (defvar gnus-tmp-pressed-details)
4860 (defvar gnus-mime-button-line-format-alist
4861 '((?t gnus-tmp-type ?s)
4862 (?T gnus-tmp-type-long ?s)
4863 (?n gnus-tmp-name ?s)
4864 (?d gnus-tmp-description ?s)
4866 (?l gnus-tmp-length ?d)
4867 (?e gnus-tmp-dots ?s)))
4869 (defvar gnus-mime-button-commands
4870 '((gnus-article-press-button "\r" "Toggle Display")
4871 (gnus-mime-view-part "v" "View Interactively...")
4872 (gnus-mime-view-part-as-type "t" "View As Type...")
4873 (gnus-mime-view-part-as-charset "C" "View As charset...")
4874 (gnus-mime-save-part "o" "Save...")
4875 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4876 (gnus-mime-replace-part "r" "Replace part")
4877 (gnus-mime-delete-part "d" "Delete part")
4878 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4879 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4880 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4881 (gnus-mime-view-part-externally "e" "View Externally")
4882 (gnus-mime-print-part "p" "Print")
4883 (gnus-mime-pipe-part "|" "Pipe To Command...")
4884 (gnus-mime-action-on-part "." "Take action on the part...")))
4886 (defun gnus-article-mime-part-status ()
4887 (if gnus-article-mime-handle-alist-1
4888 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4890 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4893 (defvar gnus-mime-button-map
4894 (let ((map (make-sparse-keymap)))
4895 (define-key map gnus-mouse-2 'gnus-article-push-button)
4896 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4897 (dolist (c gnus-mime-button-commands)
4898 (define-key map (cadr c) (car c)))
4902 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4904 ,@(mapcar (lambda (c)
4905 (vector (caddr c) (car c) :active t))
4906 gnus-mime-button-commands)))
4908 (defvar gnus-url-button-commands
4909 '((gnus-article-copy-string "u" "Copy URL to kill ring")))
4911 (defvar gnus-url-button-map
4912 (let ((map (make-sparse-keymap)))
4913 (dolist (c gnus-url-button-commands)
4914 (define-key map (cadr c) (car c)))
4918 gnus-url-button-menu gnus-url-button-map "URL button menu."
4920 ,@(mapcar (lambda (c)
4921 (vector (caddr c) (car c) :active t))
4922 gnus-url-button-commands)))
4924 (defmacro gnus-bind-safe-url-regexp (&rest body)
4925 "Bind `mm-w3m-safe-url-regexp' according to `gnus-safe-html-newsgroups'."
4926 `(let ((mm-w3m-safe-url-regexp
4927 (let ((group (if (and (derived-mode-p 'gnus-article-mode)
4929 gnus-article-current-summary))
4930 (with-current-buffer gnus-article-current-summary
4931 gnus-newsgroup-name)
4932 gnus-newsgroup-name)))
4933 (if (cond ((not group)
4934 ;; Maybe we're in a mml-preview buffer
4935 ;; and no group is selected.
4937 ((stringp gnus-safe-html-newsgroups)
4938 (string-match gnus-safe-html-newsgroups group))
4939 ((consp gnus-safe-html-newsgroups)
4940 (member group gnus-safe-html-newsgroups)))
4942 mm-w3m-safe-url-regexp))))
4945 (defun gnus-mime-button-menu (event prefix)
4946 "Construct a context-sensitive menu of MIME commands."
4947 (interactive "e\nP")
4948 (save-window-excursion
4949 (let ((pos (event-start event)))
4950 (select-window (posn-window pos))
4951 (goto-char (posn-point pos))
4952 (gnus-article-check-buffer)
4953 (popup-menu gnus-mime-button-menu nil prefix))))
4955 (defun gnus-mime-view-all-parts (&optional handles)
4956 "View all the MIME parts."
4958 (with-current-buffer gnus-article-buffer
4959 (let ((handles (or handles gnus-article-mime-handles))
4960 (mail-parse-charset gnus-newsgroup-charset)
4961 (mail-parse-ignored-charsets
4962 (with-current-buffer gnus-summary-buffer
4963 gnus-newsgroup-ignored-charsets)))
4965 (mm-remove-parts handles)
4966 (goto-char (point-min))
4967 (or (search-forward "\n\n") (goto-char (point-max)))
4968 (let ((inhibit-read-only t))
4969 (delete-region (point) (point-max))
4970 (gnus-bind-safe-url-regexp (mm-display-parts handles)))))))
4972 (defun gnus-article-jump-to-part (n)
4973 "Jump to MIME part N."
4975 (let ((parts (with-current-buffer gnus-article-buffer
4976 (length gnus-article-mime-handle-alist))))
4978 (error "No such part"))
4979 (pop-to-buffer gnus-article-buffer)
4981 (setq n (if (= parts 1)
4983 (read-number (format "Jump to part (1..%s): " parts)))))
4984 (unless (and (integerp n) (<= n parts) (>= n 1))
4987 (gnus-message 7 "Invalid part `%s', using %s instead."
4990 (gnus-message 9 "Jumping to part %s." n)
4991 (cond ((>= gnus-auto-select-part 1)
4992 (while (and (<= n parts)
4993 (not (gnus-article-goto-part n)))
4995 ((< gnus-auto-select-part 0)
4996 (while (and (>= n 1)
4997 (not (gnus-article-goto-part n)))
5000 (gnus-article-goto-part n)))))
5002 (defvar gnus-mime-buttonized-part-id nil
5003 "ID of a mime part that should be buttonized.
5004 `gnus-mime-save-part-and-strip' and `gnus-mime-delete-part' bind it.")
5007 (defsubst gnus-article-edit-part (handles &optional current-id)
5008 "Edit an article in order to delete a mime part.
5009 This function is exclusively used by `gnus-mime-save-part-and-strip'
5010 and `gnus-mime-delete-part', and not provided at run-time normally."
5011 (gnus-article-edit-article
5013 (buffer-disable-undo)
5014 (let ((mail-parse-charset (or gnus-article-charset
5015 ',gnus-newsgroup-charset))
5016 (mail-parse-ignored-charsets
5017 (or gnus-article-ignored-charsets
5018 ',gnus-newsgroup-ignored-charsets))
5019 (mbl mml-buffer-list))
5020 (setq mml-buffer-list nil)
5021 ;; A new text must be inserted before deleting existing ones
5022 ;; at the end so as not to move existing markers of which
5023 ;; the insertion type is t.
5027 (goto-char (point-max))
5028 (insert-buffer-substring gnus-original-article-buffer)))
5029 (mime-to-mml ',handles)
5030 (setq gnus-article-mime-handles nil)
5031 (let ((mbl1 mml-buffer-list))
5032 (setq mml-buffer-list mbl)
5033 (set (make-local-variable 'mml-buffer-list) mbl1))
5034 (gnus-make-local-hook 'kill-buffer-hook)
5035 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
5036 `(lambda (no-highlight)
5037 (let ((mail-parse-charset (or gnus-article-charset
5038 ',gnus-newsgroup-charset))
5039 (message-options message-options)
5040 (message-options-set-recipient)
5041 (mail-parse-ignored-charsets
5042 (or gnus-article-ignored-charsets
5043 ',gnus-newsgroup-ignored-charsets)))
5045 (mml-destroy-buffers)
5046 (remove-hook 'kill-buffer-hook
5047 'mml-destroy-buffers t)
5048 (kill-local-variable 'mml-buffer-list))
5049 (gnus-summary-edit-article-done
5050 ,(or (mail-header-references gnus-current-headers) "")
5051 ,(gnus-group-read-only-p)
5052 ,gnus-summary-buffer no-highlight))
5054 ;; Force buttonizing this part.
5055 (let ((gnus-mime-buttonized-part-id current-id))
5056 (gnus-article-edit-done))
5057 (gnus-configure-windows 'article)
5058 (when (and current-id (integerp gnus-auto-select-part))
5059 (gnus-article-jump-to-part
5060 (min (max (+ current-id gnus-auto-select-part) 1)
5061 (with-current-buffer gnus-article-buffer
5062 (length gnus-article-mime-handle-alist)))))))
5064 (defun gnus-mime-replace-part (file)
5065 "Replace MIME part under point with an external body."
5066 ;; Useful if file has already been saved to disk
5069 (read-file-name "Replace MIME part with file: "
5070 (or mm-default-directory default-directory)
5072 (gnus-mime-save-part-and-strip file))
5074 (defun gnus-mime-save-part-and-strip (&optional file)
5075 "Save the MIME part under point then replace it with an external body.
5076 If FILE is given, use it for the external part."
5078 (gnus-article-check-buffer)
5079 (when (gnus-group-read-only-p)
5080 (error "The current group does not support deleting of parts"))
5081 (when (mm-complicated-handles gnus-article-mime-handles)
5083 The current article has a complicated MIME structure, giving up..."))
5084 (let* ((data (get-text-property (point) 'gnus-data))
5085 (id (get-text-property (point) 'gnus-part))
5086 (handles gnus-article-mime-handles))
5089 (and data (mm-save-part data "Delete MIME part and save to: "))))
5091 (with-current-buffer (mm-handle-buffer data)
5093 (insert "Content-Type: " (mm-handle-media-type data))
5094 (mml-insert-parameter-string (cdr (mm-handle-type data))
5096 ;; Add a filename for the sake of saving the part again.
5097 (mml-insert-parameter
5098 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
5100 (insert "Content-ID: " (message-make-message-id) "\n")
5101 (insert "Content-Transfer-Encoding: binary\n")
5104 (cdr (mm-make-handle nil
5105 `("message/external-body"
5106 (access-type . "LOCAL-FILE")
5108 ;; (set-buffer gnus-summary-buffer)
5109 (gnus-article-edit-part handles id))))
5111 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
5112 ;; parts...>') but with stripping would be nice.
5114 (defun gnus-mime-delete-part ()
5115 "Delete the MIME part under point.
5116 Replace it with some information about the removed part."
5118 (gnus-article-check-buffer)
5119 (when (gnus-group-read-only-p)
5120 (error "The current group does not support deleting of parts"))
5121 (when (mm-complicated-handles gnus-article-mime-handles)
5123 The current article has a complicated MIME structure, giving up..."))
5124 (when (or gnus-expert-user
5125 (gnus-yes-or-no-p "\
5126 Deleting parts may malfunction or destroy the article; continue? "))
5127 (let* ((data (get-text-property (point) 'gnus-data))
5128 (id (get-text-property (point) 'gnus-part))
5129 (handles gnus-article-mime-handles)
5131 (let ((desc (mm-handle-description data)))
5133 (mail-decode-encoded-word-string desc))))
5134 (filename (or (mm-handle-filename data) "(none)"))
5135 (type (mm-handle-media-type data)))
5137 (error "No MIME part under point"))
5138 (with-current-buffer (mm-handle-buffer data)
5139 (let ((bsize (buffer-size)))
5144 "| The following attachment has been deleted:\n"
5146 "| Type: " type "\n"
5147 "| Filename: " filename "\n"
5148 "| Size (encoded): " (format "%s byte%s\n"
5149 bsize (if (= bsize 1)
5153 (concat "| Description: " description "\n"))
5156 (cdr (mm-make-handle
5157 nil `("text/plain" (charset . gnus-decoded)) nil nil
5159 (format "Deleted attachment (%s bytes)" bsize))))))
5160 ;; (set-buffer gnus-summary-buffer)
5161 (gnus-article-edit-part handles id))))
5163 (defun gnus-mime-save-part ()
5164 "Save the MIME part under point."
5166 (gnus-article-check-buffer)
5167 (let ((data (get-text-property (point) 'gnus-data)))
5169 (mm-save-part data))))
5171 (defun gnus-mime-pipe-part (&optional cmd)
5172 "Pipe the MIME part under point to a process.
5173 Use CMD as the process."
5175 (gnus-article-check-buffer)
5176 (let ((data (get-text-property (point) 'gnus-data)))
5178 (mm-pipe-part data cmd))))
5180 (defun gnus-mime-view-part ()
5181 "Interactively choose a viewing method for the MIME part under point."
5183 (gnus-article-check-buffer)
5184 (let ((data (get-text-property (point) 'gnus-data)))
5186 (setq gnus-article-mime-handles
5188 gnus-article-mime-handles (setq data (copy-sequence data))))
5189 (mm-interactively-view-part data))))
5191 (defun gnus-mime-view-part-as-type-internal ()
5192 (gnus-article-check-buffer)
5193 (let* ((handle (get-text-property (point) 'gnus-data))
5195 ;; Content-Type: foo/bar; name=...
5196 (mail-content-type-get (mm-handle-type handle) 'name)
5197 ;; Content-Disposition: attachment; filename=...
5198 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
5199 (def-type (and name (mm-default-file-encoding name))))
5200 (or (and def-type (cons def-type 0))
5202 (equal (mm-handle-media-supertype handle) "text")
5203 '("text/plain" . 0))
5204 '("application/octet-stream" . 0))))
5206 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
5207 "Choose a MIME media type, and view the part as such.
5208 If non-nil, PRED is a predicate to use during completion to limit the
5209 available media-types."
5213 (let ((default (gnus-mime-view-part-as-type-internal)))
5214 (gnus-completing-read
5217 (gnus-remove-if-not pred (mailcap-mime-types))
5218 (mailcap-mime-types))
5221 (gnus-article-check-buffer)
5222 (let ((handle (get-text-property (point) 'gnus-data)))
5224 (when (equal (mm-handle-media-type handle) "message/external-body")
5225 (unless (mm-handle-cache handle)
5226 (mm-extern-cache-contents handle))
5227 (setq handle (mm-handle-cache handle)))
5229 (mm-make-handle (mm-handle-buffer handle)
5230 (cons mime-type (cdr (mm-handle-type handle)))
5231 (mm-handle-encoding handle)
5232 (mm-handle-undisplayer handle)
5233 (mm-handle-disposition handle)
5234 (mm-handle-description handle)
5236 (mm-handle-id handle)))
5237 (setq gnus-article-mime-handles
5238 (mm-merge-handles gnus-article-mime-handles handle))
5239 (when (mm-handle-displayed-p handle)
5240 (mm-remove-part handle))
5241 (gnus-mm-display-part handle))))
5243 (defun gnus-mime-copy-part (&optional handle arg)
5244 "Put the MIME part under point into a new buffer.
5245 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
5247 (interactive (list nil current-prefix-arg))
5248 (gnus-article-check-buffer)
5250 (setq handle (get-text-property (point) 'gnus-data)))
5252 (let ((filename (mm-handle-filename handle))
5253 contents dont-decode charset coding-system)
5254 (mm-with-unibyte-buffer
5255 (mm-insert-part handle)
5256 (setq contents (or (condition-case nil
5257 (mm-decompress-buffer filename nil 'sig)
5259 (setq dont-decode t)
5262 (setq filename (cond (filename (file-name-nondirectory filename))
5263 (dont-decode "*raw data*")
5268 (unless (setq charset (mail-content-type-get
5269 (mm-handle-type handle) 'charset))
5270 (unless (setq coding-system (mm-with-unibyte-buffer
5272 (mm-find-buffer-file-coding-system)))
5273 (setq charset gnus-newsgroup-charset))))
5275 (setq charset (or (cdr (assq arg
5276 gnus-summary-show-article-charset-alist))
5277 (mm-read-coding-system "Charset: ")))))
5278 (switch-to-buffer (generate-new-buffer filename))
5279 (if (or coding-system
5281 (setq coding-system (mm-charset-to-coding-system
5283 (not (eq coding-system 'ascii))))
5285 (mm-enable-multibyte)
5286 (insert (mm-decode-coding-string contents coding-system))
5287 (setq buffer-file-coding-system
5288 (if (boundp 'last-coding-system-used)
5289 (symbol-value 'last-coding-system-used)
5291 (mm-disable-multibyte)
5293 (setq buffer-file-coding-system mm-binary-coding-system))
5294 ;; We do it this way to make `normal-mode' set the appropriate mode.
5297 (setq buffer-file-name (expand-file-name filename))
5299 (setq buffer-file-name nil))
5300 (goto-char (point-min)))))
5302 (defun gnus-mime-print-part (&optional handle filename)
5303 "Print the MIME part under point."
5304 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5305 (gnus-article-check-buffer)
5306 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5307 (contents (and handle (mm-get-part handle)))
5308 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5309 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5314 (mm-save-part-to-file handle file)
5315 (call-process shell-file-name nil
5316 (generate-new-buffer " *mm*")
5318 shell-command-switch
5320 printer file (mm-handle-type handle))))
5324 (gnus-print-buffer))
5325 (ps-despool filename)))))
5327 (defun gnus-mime-inline-part (&optional handle arg)
5328 "Insert the MIME part under point into the current buffer.
5329 Compressed files like .gz and .bz2 are decompressed."
5330 (interactive (list nil current-prefix-arg))
5331 (gnus-article-check-buffer)
5332 (let* ((inhibit-read-only t)
5334 (btn ;; position where the MIME button exists
5336 (if (eq handle (get-text-property b 'gnus-data))
5339 (or (text-property-any (point) (point-max) 'gnus-data handle)
5340 (text-property-any (point-min) (point) 'gnus-data handle)))
5341 (setq handle (get-text-property b 'gnus-data))
5347 (setq start (next-single-property-change btn 'gnus-data
5349 btn (previous-single-property-change start
5352 (if (and (not arg) (mm-handle-undisplayer handle))
5353 (mm-remove-part handle)
5357 (if (mm-handle-undisplayer handle)
5358 (mm-remove-part handle)))
5359 ((mm-handle-undisplayer handle)
5360 (mm-remove-part handle)))
5363 ;; This is a header button.
5365 (mm-display-inline handle))
5366 ;; Toggle the button appearance between `[button]...' and `[button]'.
5368 (let ((displayed-p (mm-handle-displayed-p handle)))
5369 (gnus-insert-mime-button handle (get-text-property btn 'gnus-part)
5371 (if (featurep 'emacs)
5374 (next-single-property-change (point) 'gnus-data nil (point-max)))
5375 (let* ((end (next-single-property-change (point) 'gnus-data))
5376 (annots (annotations-at (or end (point-max)))))
5377 (delete-region (point)
5379 (if annots (1+ end) end)
5381 (dolist (annot annots)
5382 (set-extent-endpoints annot (point) (point)))))
5383 (setq start (point))
5384 (if (search-backward "\n\n" nil t)
5387 (unless (or displayed-p (eolp))
5388 ;; Add extra newline.
5389 (insert (propertize (buffer-substring (1- start) start)
5390 'gnus-undeletable t))))
5391 ;; We're in the article header.
5393 (dolist (ovl (gnus-overlays-in btn (point)))
5394 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
5395 (gnus-overlay-put ovl 'face nil))
5397 (message-narrow-to-field)
5398 (let ((gnus-treatment-function-alist
5399 '((gnus-treat-highlight-headers
5400 gnus-article-highlight-headers))))
5401 (gnus-treat-article 'head)))))
5404 (defun gnus-mime-set-charset-parameters (handle charset)
5405 "Set CHARSET to parameters in HANDLE.
5406 CHARSET may either be a string or a symbol."
5407 (unless (stringp charset)
5408 (setq charset (symbol-name charset)))
5409 (if (stringp (car handle))
5410 (dolist (h (cdr handle))
5411 (gnus-mime-set-charset-parameters h charset))
5412 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5413 "message/external-body")
5415 (unless (mm-handle-cache handle)
5416 (mm-extern-cache-contents handle))
5417 (mm-handle-cache handle))
5419 (param (assq 'charset (cdr type))))
5421 (setcdr param charset)
5422 (setcdr type (cons (cons 'charset charset) (cdr type)))))))
5424 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5425 "Insert the MIME part under point into the current buffer using the
5427 (interactive (list nil current-prefix-arg))
5428 (gnus-article-check-buffer)
5429 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5430 (fun (get-text-property (point) 'gnus-callback))
5431 (gnus-newsgroup-ignored-charsets 'gnus-all)
5432 charset form preferred parts)
5439 gnus-summary-show-article-charset-alist))
5440 (mm-read-coding-system "Charset: "))))
5441 (if (mm-handle-undisplayer handle)
5442 (mm-remove-part handle)))
5443 (gnus-mime-set-charset-parameters handle charset)
5444 (when (and (consp (setq form (cdr-safe fun)))
5445 (setq form (ignore-errors
5446 (assq 'gnus-mime-display-alternative form)))
5447 (setq preferred (caddr form))
5449 (when (eq (car preferred) 'quote)
5450 (setq preferred (cadr preferred)))
5451 (not (equal preferred
5452 (get-text-property (point) 'gnus-data))))
5453 (setq parts (get-text-property (point) 'gnus-part))
5454 (setq parts (cdr (assq parts
5455 gnus-article-mime-handle-alist)))
5456 (equal (mm-handle-media-type parts) "multipart/alternative")
5457 (setq parts (reverse (cdr parts))))
5459 (list 'quote (or (cadr (member preferred parts))
5461 (funcall fun handle)))))
5463 (defun gnus-mime-view-part-externally (&optional handle)
5464 "View the MIME part under point with an external viewer."
5466 (gnus-article-check-buffer)
5467 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5468 (mm-inlined-types nil)
5469 (mail-parse-charset gnus-newsgroup-charset)
5470 (mail-parse-ignored-charsets
5471 (with-current-buffer gnus-summary-buffer
5472 gnus-newsgroup-ignored-charsets))
5473 (type (mm-handle-media-type handle))
5474 (method (mailcap-mime-info type))
5475 (mm-enable-external t))
5476 (if (not (stringp method))
5477 (gnus-mime-view-part-as-type
5478 nil (lambda (type) (stringp (mailcap-mime-info type))))
5480 (mm-display-part handle nil t)))))
5482 (defun gnus-mime-view-part-internally (&optional handle)
5483 "View the MIME part under point with an internal viewer.
5484 If no internal viewer is available, use an external viewer."
5486 (gnus-article-check-buffer)
5487 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5488 (mm-inlined-types '(".*"))
5489 (mm-inline-large-images t)
5490 (mail-parse-charset gnus-newsgroup-charset)
5491 (mail-parse-ignored-charsets
5492 (with-current-buffer gnus-summary-buffer
5493 gnus-newsgroup-ignored-charsets))
5494 (inhibit-read-only t))
5495 (if (not (mm-inlinable-p handle))
5496 (gnus-mime-view-part-as-type
5497 nil (lambda (type) (mm-inlinable-p handle type)))
5499 (gnus-bind-safe-url-regexp (mm-display-part handle))))))
5501 (defun gnus-mime-action-on-part (&optional action)
5502 "Do something with the MIME attachment at \(point\)."
5504 (list (gnus-completing-read "Action" (mapcar 'car gnus-mime-action-alist) t)))
5505 (gnus-article-check-buffer)
5506 (let ((action-pair (assoc action gnus-mime-action-alist)))
5508 (funcall (cdr action-pair)))))
5510 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5511 "Call FUNCTION on MIME part N.
5512 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as its only argument.
5513 If INTERACTIVE, call FUNCTION interactively."
5515 ;; Check whether the article is displayed.
5516 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5517 (setq window (get-buffer-window gnus-article-buffer t))
5518 (frame-visible-p (setq frame (window-frame window))))
5519 (error "No article is displayed"))
5520 (with-current-buffer gnus-article-buffer
5521 ;; Check whether the article displays the right contents.
5522 (unless (with-current-buffer gnus-summary-buffer
5523 (eq gnus-current-article (gnus-summary-article-number)))
5524 (error "You should select the right article first"))
5526 (setq n (prefix-numeric-value n))
5528 (setq n (or (get-text-property pt 'gnus-part)
5530 (get-text-property (1- pt) 'gnus-part))
5531 (get-text-property (prog2
5537 (or (and (setq pt (previous-single-property-change
5540 (next-single-property-change (point) 'gnus-part)
5544 ;; Check whether the specified part exists.
5545 (when (> n (length gnus-article-mime-handle-alist))
5546 (error "No such part")))
5549 ;; To select the window is needed so that the cursor
5550 ;; might be visible on the MIME button.
5551 (select-window (prog1
5553 (setq window (selected-window))
5554 ;; Article may be displayed in the other frame.
5555 (gnus-select-frame-set-input-focus
5558 (setq frame (selected-frame))))))
5559 (when (gnus-article-goto-part n)
5560 ;; We point the cursor and the arrow at the MIME button
5561 ;; when the `function' prompt the user for something.
5562 (unless (and (pos-visible-in-window-p)
5563 (> (count-lines (point) (window-end))
5564 (/ (1- (window-height)) 3)))
5565 (recenter (/ (1- (window-height)) 3)))
5566 (let ((cursor-in-non-selected-windows t)
5567 (overlay-arrow-string "=>")
5568 (overlay-arrow-position (point-marker)))
5571 ((and no-handle interactive)
5572 (call-interactively function))
5577 function (get-text-property (point) 'gnus-data)))
5580 (get-text-property (point) 'gnus-data))))
5581 (set-marker overlay-arrow-position nil)
5582 (unless gnus-auto-select-part
5583 (gnus-select-frame-set-input-focus frame)
5584 (select-window window))))
5586 (if gnus-inhibit-mime-unbuttonizing
5587 ;; This is the default though the program shouldn't reach here.
5588 (error "No such part")
5589 ;; The part which doesn't have the MIME button is selected.
5590 ;; So, we display all the buttons and redo it.
5591 (let ((gnus-inhibit-mime-unbuttonizing t))
5592 (gnus-summary-show-article)
5593 (gnus-article-part-wrapper n function no-handle))))))
5595 (defun gnus-article-pipe-part (n)
5596 "Pipe MIME part N, which is the numerical prefix."
5598 (gnus-article-part-wrapper n 'mm-pipe-part))
5600 (defun gnus-article-save-part (n)
5601 "Save MIME part N, which is the numerical prefix."
5603 (gnus-article-part-wrapper n 'mm-save-part))
5605 (defun gnus-article-interactively-view-part (n)
5606 "View MIME part N interactively, which is the numerical prefix."
5608 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5610 (defun gnus-article-copy-part (n)
5611 "Copy MIME part N, which is the numerical prefix."
5613 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5615 (defun gnus-article-view-part-as-charset (n)
5616 "View MIME part N using a specified charset.
5617 N is the numerical prefix."
5619 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5621 (defun gnus-article-view-part-externally (n)
5622 "View MIME part N externally, which is the numerical prefix."
5624 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5626 (defun gnus-article-inline-part (n)
5627 "Inline MIME part N, which is the numerical prefix."
5629 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5631 (defun gnus-article-save-part-and-strip (n)
5632 "Save MIME part N and replace it with an external body.
5633 N is the numerical prefix."
5635 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5637 (defun gnus-article-replace-part (n)
5638 "Replace MIME part N with an external body.
5639 N is the numerical prefix."
5641 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5643 (defun gnus-article-delete-part (n)
5644 "Delete MIME part N and add some information about the removed part.
5645 N is the numerical prefix."
5647 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5649 (defun gnus-article-view-part-as-type (n)
5650 "Choose a MIME media type, and view part N as such.
5651 N is the numerical prefix."
5653 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5655 (defun gnus-article-mime-match-handle-first (condition)
5658 (dolist (ihandle gnus-article-mime-handle-alist)
5660 ((functionp condition)
5661 (funcall condition (cdr ihandle)))
5662 ((eq condition 'undisplayed)
5663 (not (or (mm-handle-undisplayer (cdr ihandle))
5664 (equal (mm-handle-media-type (cdr ihandle))
5665 "multipart/alternative"))))
5666 ((eq condition 'undisplayed-alternative)
5667 (not (mm-handle-undisplayer (cdr ihandle))))
5669 (gnus-article-goto-part (car ihandle))
5670 (or (not n) (< (car ihandle) n)))
5671 (setq n (car ihandle))))
5675 (defun gnus-article-view-part (&optional n)
5676 "View MIME part N, which is the numerical prefix.
5677 If the part is already shown, hide the part. If N is nil, view
5680 (with-current-buffer gnus-article-buffer
5681 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5682 gnus-article-mime-match-handle-function)))
5683 (when (> n (length gnus-article-mime-handle-alist))
5684 (error "No such part"))
5685 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5686 (when (gnus-article-goto-part n)
5687 (if (equal (car handle) "multipart/alternative")
5689 (beginning-of-line) ;; Make it toggle subparts
5690 (gnus-article-press-button))
5691 (when (eq (gnus-mm-display-part handle) 'internal)
5692 (gnus-set-window-start)))))))
5694 (defsubst gnus-article-mime-total-parts ()
5695 (if (bufferp (car gnus-article-mime-handles))
5697 (1- (length gnus-article-mime-handles))))
5699 (defun gnus-mm-display-part (handle)
5700 "Display HANDLE and fix MIME button."
5701 (let ((id (get-text-property (point) 'gnus-part))
5703 (inhibit-read-only t)
5704 (window (selected-window))
5705 (mail-parse-charset gnus-newsgroup-charset)
5706 (mail-parse-ignored-charsets
5707 (if (gnus-buffer-live-p gnus-summary-buffer)
5708 (with-current-buffer gnus-summary-buffer
5709 gnus-newsgroup-ignored-charsets)
5714 (let ((win (gnus-get-buffer-window (current-buffer) t)))
5718 (setq start (next-single-property-change point 'gnus-data
5720 point (previous-single-property-change start 'gnus-data))
5721 (if (mm-handle-displayed-p handle)
5722 ;; This will remove the part.
5723 (setq retval (mm-display-part handle))
5724 (let ((part (or (and (mm-inlinable-p handle)
5725 (mm-inlined-p handle)
5728 (gnus-bind-safe-url-regexp
5729 (setq retval (mm-display-part handle)))
5730 (unless (zerop (buffer-size))
5731 (buffer-string))))))
5734 ;; This is a header button.
5736 (cond ((stringp part)
5738 (narrow-to-region (point)
5741 (unless (bolp) (insert "\n"))
5743 (gnus-treat-article nil id
5744 (gnus-article-mime-total-parts)
5745 (mm-handle-media-type handle))
5746 (mm-handle-set-undisplayer
5749 (let ((inhibit-read-only t))
5750 (delete-region ,(copy-marker (point-min) t)
5751 ,(point-max-marker)))))))
5753 (mm-display-inline handle))))))
5755 ;; Toggle the button appearance between `[button]...' and `[button]'.
5756 (let ((displayed-p (mm-handle-displayed-p handle)))
5757 (gnus-insert-mime-button handle id (list displayed-p))
5758 (if (featurep 'emacs)
5761 (next-single-property-change (point) 'gnus-data nil (point-max)))
5762 (let* ((end (next-single-property-change (point) 'gnus-data))
5763 (annots (annotations-at (or end (point-max)))))
5764 (delete-region (point)
5766 (if annots (1+ end) end)
5768 (dolist (annot annots)
5769 (set-extent-endpoints annot (point) (point)))))
5770 (setq start (point))
5771 (if (search-backward "\n\n" nil t)
5774 (unless (or displayed-p (eolp))
5775 ;; Add extra newline.
5776 (insert (propertize (buffer-substring (1- start) start)
5777 'gnus-undeletable t))))
5778 ;; We're in the article header.
5780 (dolist (ovl (gnus-overlays-in point (point)))
5781 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
5782 (gnus-overlay-put ovl 'face nil))
5784 (message-narrow-to-field)
5785 (let ((gnus-treatment-function-alist
5786 '((gnus-treat-highlight-headers
5787 gnus-article-highlight-headers))))
5788 (gnus-treat-article 'head)))))
5790 (if (window-live-p window)
5791 (select-window window)))
5794 (defun gnus-article-goto-part (n)
5795 "Go to MIME part N."
5796 (when gnus-break-pages
5800 (let ((start (or (text-property-any (point) (point-max) 'gnus-part n)
5801 ;; There may be header buttons.
5802 (text-property-any (point-min) (point) 'gnus-part n)))
5803 part handle end next handles)
5806 (if (setq handle (get-text-property start 'gnus-data))
5808 ;; Go to the displayed subpart, assuming this is
5809 ;; multipart/alternative.
5812 (while (and (not handle)
5815 (setq next (text-property-not-all part end
5818 handle (get-text-property part 'gnus-data))
5819 (push (cons handle part) handles)
5820 (unless (mm-handle-displayed-p handle)
5822 part (text-property-any part end 'gnus-data nil))))
5824 ;; No subpart is displayed, so we find preferred one.
5826 (cdr (assq (mm-preferred-alternative
5827 (nreverse (mapcar 'car handles)))
5830 (goto-char (1+ part))
5832 (when gnus-break-pages
5833 (gnus-narrow-to-page))))
5835 (defun gnus-insert-mime-button (handle id &optional displayed)
5836 (let ((gnus-tmp-name
5837 (or (mm-handle-filename handle)
5838 (mail-content-type-get (mm-handle-type handle) 'url)
5841 (gnus-tmp-type (mm-handle-media-type handle))
5842 (gnus-tmp-description (or (mm-handle-description handle) ""))
5844 (if (if displayed (car displayed)
5845 (mm-handle-displayed-p handle))
5847 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5849 gnus-tmp-type-long b e)
5850 (when (string-match ".*/" gnus-tmp-name)
5851 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5852 (setq gnus-tmp-type-long (concat gnus-tmp-type
5853 (and (not (equal gnus-tmp-name ""))
5854 (concat "; " gnus-tmp-name))))
5855 (unless (equal gnus-tmp-description "")
5856 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5859 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5860 `(keymap ,gnus-mime-button-map
5861 gnus-callback gnus-mm-display-part
5862 gnus-part ,gnus-tmp-id
5863 article-type annotation
5867 ;; Exclude a newline.
5870 (when gnus-article-button-face
5871 (gnus-overlay-put (gnus-make-overlay b e nil t)
5872 'face gnus-article-button-face))
5873 (widget-convert-button
5876 :action 'gnus-widget-press-button
5877 :button-keymap gnus-mime-button-map
5880 ;; Needed to properly clear the message due to a bug in
5881 ;; wid-edit (XEmacs only).
5882 (if (boundp 'help-echo-owns-message)
5883 (setq help-echo-owns-message t))
5885 "%S: %s the MIME part; %S: more options"
5886 (aref gnus-mouse-2 0)
5887 (if (mm-handle-displayed-p (widget-get widget :mime-handle))
5889 (aref gnus-down-mouse-3 0))))))
5891 (defun gnus-widget-press-button (elems _el)
5892 (goto-char (widget-get elems :from))
5893 (gnus-article-press-button))
5895 (defvar gnus-displaying-mime nil)
5897 (defun gnus-display-mime (&optional ihandles)
5898 "Display the MIME parts."
5900 (save-selected-window
5901 (let ((window (get-buffer-window gnus-article-buffer))
5904 (select-window window)
5905 ;; We have to do this since selecting the window
5906 ;; may change the point. So we set the window point.
5907 (set-window-point window point)))
5908 (let ((handles ihandles)
5909 (inhibit-read-only t))
5911 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5912 (when gnus-article-emulate-mime
5913 (mm-uu-dissect-text-parts handles)))
5914 (gnus-article-emulate-mime
5915 (setq handles (mm-uu-dissect))))
5916 (when (and (not ihandles)
5917 (not gnus-displaying-mime))
5918 ;; Top-level call; we clean up.
5919 (when gnus-article-mime-handles
5920 (mm-destroy-parts gnus-article-mime-handles)
5921 (setq gnus-article-mime-handle-alist nil));; A trick.
5922 (setq gnus-article-mime-handles handles)
5923 ;; We allow users to glean info from the handles.
5924 (when gnus-article-mime-part-function
5925 (gnus-mime-part-function handles)))
5927 (or (not (stringp (car handles)))
5930 (when (and (not ihandles)
5931 (not gnus-displaying-mime))
5932 ;; Clean up for mime parts.
5934 (delete-region (point) (point-max)))
5935 (let ((gnus-displaying-mime t))
5936 (gnus-mime-display-part handles)))
5939 (narrow-to-region (point) (point-max))
5940 (gnus-treat-article nil 1 1 "text/plain")
5943 ;; Highlight the headers.
5947 (narrow-to-region (point-min) (point))
5948 (gnus-article-save-original-date
5949 (gnus-treat-article 'head)))))))
5950 ;; Cope with broken MIME messages.
5951 (goto-char (point-max))
5955 (defcustom gnus-mime-display-multipart-as-mixed nil
5956 "Display \"multipart\" parts as \"multipart/mixed\".
5958 If t, it overrides nil values of
5959 `gnus-mime-display-multipart-alternative-as-mixed' and
5960 `gnus-mime-display-multipart-related-as-mixed'."
5961 :group 'gnus-article-mime
5964 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5965 "Display \"multipart/alternative\" parts as \"multipart/mixed\"."
5967 :group 'gnus-article-mime
5970 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5971 "Display \"multipart/related\" parts as \"multipart/mixed\".
5973 If displaying \"text/html\" is discouraged \(see
5974 `mm-discouraged-alternatives'\) images or other material inside a
5975 \"multipart/related\" part might be overlooked when this variable is nil."
5977 :group 'gnus-article-mime
5980 (defcustom gnus-mime-display-attachment-buttons-in-header t
5981 "Add attachment buttons in the end of the header of an article.
5982 Since MIME attachments tend to be put at the end of an article, we may
5983 overlook them if there is a huge body. This option offers you a copy
5984 of all non-inlinable MIME parts as buttons shown in front of an article.
5985 If nil, don't show those extra buttons."
5987 :group 'gnus-article-mime
5990 (defun gnus-mime-display-part (handle)
5992 ;; Maybe a broken MIME message.
5995 ((not (stringp (car handle)))
5996 (gnus-mime-display-single handle))
5997 ;; User-defined multipart
5998 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5999 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
6001 ;; multipart/alternative
6002 ((and (equal (car handle) "multipart/alternative")
6003 (not (or gnus-mime-display-multipart-as-mixed
6004 gnus-mime-display-multipart-alternative-as-mixed)))
6005 (let ((id (1+ (length gnus-article-mime-handle-alist))))
6006 (push (cons id handle) gnus-article-mime-handle-alist)
6007 (gnus-mime-display-alternative (cdr handle) nil nil id)))
6008 ;; multipart/related
6009 ((and (equal (car handle) "multipart/related")
6010 (not (or gnus-mime-display-multipart-as-mixed
6011 gnus-mime-display-multipart-related-as-mixed)))
6012 (gnus-mime-display-part (cadr handle)))
6013 ((equal (car handle) "multipart/signed")
6014 (gnus-add-wash-type 'signed)
6015 (gnus-mime-display-security handle))
6016 ((equal (car handle) "multipart/encrypted")
6017 (gnus-add-wash-type 'encrypted)
6018 (gnus-mime-display-security handle))
6019 ;; Other multiparts are handled like multipart/mixed.
6021 (gnus-mime-display-mixed (cdr handle)))))
6023 (defun gnus-mime-part-function (handles)
6024 (if (stringp (car handles))
6025 (mapcar 'gnus-mime-part-function (cdr handles))
6026 (funcall gnus-article-mime-part-function handles)))
6028 (defun gnus-mime-display-mixed (handles)
6029 (mapcar 'gnus-mime-display-part handles))
6031 (defun gnus-mime-display-single (handle)
6032 (let ((type (mm-handle-media-type handle))
6033 (ignored gnus-ignored-mime-types)
6039 (when (string-match (pop ignored) type)
6040 (throw 'ignored nil)))
6041 (if (and (not (and (if (gnus-buffer-live-p gnus-summary-buffer)
6042 (with-current-buffer gnus-summary-buffer
6043 gnus-inhibit-images)
6044 gnus-inhibit-images)
6045 (string-match "\\`image/" type)))
6046 (setq not-attachment
6047 (and (not (mm-inline-override-p handle))
6048 (or (not (mm-handle-disposition handle))
6049 (equal (car (mm-handle-disposition handle))
6051 (mm-attachment-override-p handle))))
6052 (mm-automatic-display-p handle)
6054 (mm-inlinable-p handle)
6055 (mm-inlined-p handle))
6056 (mm-automatic-external-display-p type)))
6058 (when (equal (mm-handle-media-supertype handle) "text")
6060 (let ((id (car (rassq handle gnus-article-mime-handle-alist)))
6063 (setq id (1+ (length gnus-article-mime-handle-alist)))
6064 (push (cons id handle) gnus-article-mime-handle-alist))
6066 (equal (mm-handle-media-supertype handle) "message"))
6069 (cond ((not (bolp)) 2)
6070 ((or (bobp) (eq (char-before (1- (point))) ?\n)) 0)
6072 (when (or (not display)
6073 (not (gnus-unbuttonized-mime-type-p type))
6074 (eq id gnus-mime-buttonized-part-id))
6075 (gnus-insert-mime-button
6076 handle id (list (or display (and not-attachment text)))))
6080 (let ((mail-parse-charset gnus-newsgroup-charset)
6081 (mail-parse-ignored-charsets
6082 (save-excursion (condition-case ()
6083 (set-buffer gnus-summary-buffer)
6085 gnus-newsgroup-ignored-charsets)))
6086 (gnus-bind-safe-url-regexp (mm-display-part handle t))))
6087 ((and text not-attachment)
6088 (mm-display-inline handle)))
6089 (goto-char (point-max))
6090 (if (string-match "\\`image/" type)
6091 (gnus-article-insert-newline)
6093 (= (skip-chars-backward "\n") -1)
6095 (gnus-article-insert-newline)
6096 (put-text-property (point) (point-max) 'gnus-undeletable t))
6097 (goto-char (point-max)))
6101 (narrow-to-region beg (point))
6102 (if (eq handle gnus-article-mime-handles)
6103 ;; The format=flowed case.
6104 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
6105 ;; Don't count signature parts that are never displayed.
6106 ;; The part number should be re-calculated supposing this
6107 ;; might be a message/rfc822 part.
6109 (dolist (part gnus-article-mime-handles)
6110 (unless (or (stringp part)
6111 (equal (car (mm-handle-type part))
6112 "application/pgp-signature"))
6113 (push part handles)))
6115 nil (length (memq handle handles)) (length handles)
6116 (mm-handle-media-type handle)))))))))))
6118 (defun gnus-unbuttonized-mime-type-p (type)
6119 "Say whether TYPE is to be unbuttonized."
6120 (unless gnus-inhibit-mime-unbuttonizing
6122 (let ((types gnus-unbuttonized-mime-types))
6124 (when (string-match (pop types) type)
6125 (throw 'found t)))))
6127 (let ((types gnus-buttonized-mime-types))
6129 (when (string-match (pop types) type)
6130 (throw 'found t)))))))))
6132 (defun gnus-article-insert-newline ()
6133 "Insert a newline, but mark it as undeletable."
6134 (gnus-put-text-property
6135 (point) (progn (insert "\n") (point)) 'gnus-undeletable t))
6137 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
6138 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
6141 handle (inhibit-read-only t) from begend not-pref)
6142 (save-window-excursion
6145 (narrow-to-region (car ibegend)
6148 (goto-char (car ibegend))
6151 (delete-region (point-min) (point-max))
6152 (mm-remove-parts handles))
6153 (setq begend (list (point-marker)))
6155 (unless (setq not-pref (cadr (member preferred ihandles)))
6156 (setq not-pref (car ihandles)))
6159 (not (gnus-unbuttonized-mime-type-p
6160 "multipart/alternative")))
6161 (gnus-add-text-properties
6164 (insert (format "%d. " id))
6168 (unless ,(not ibegend)
6169 (setq gnus-article-mime-handle-alist
6170 ',gnus-article-mime-handle-alist))
6171 (gnus-mime-display-alternative
6172 ',ihandles ',not-pref ',begend ,id))
6173 keymap ,gnus-mime-button-map
6174 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6175 face ,gnus-article-button-face
6177 article-type multipart
6179 (widget-convert-button 'link from (point)
6180 :action 'gnus-widget-press-button
6181 :button-keymap gnus-widget-button-keymap)
6183 (while (setq handle (pop handles))
6184 (gnus-add-text-properties
6187 (insert (format "(%c) %-18s"
6188 (if (equal handle preferred) ?* ? )
6189 (mm-handle-media-type handle)))
6193 (unless ,(not ibegend)
6194 (setq gnus-article-mime-handle-alist
6195 ',gnus-article-mime-handle-alist))
6196 (gnus-mime-display-alternative
6197 ',ihandles ',handle ',begend ,id))
6198 keymap ,gnus-mime-button-map
6199 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6200 face ,gnus-article-button-face
6204 (widget-convert-button 'link from (point)
6205 :action 'gnus-widget-press-button
6206 :button-keymap gnus-widget-button-keymap)
6210 (if (stringp (car preferred))
6211 (gnus-display-mime preferred)
6212 (let ((mail-parse-charset gnus-newsgroup-charset)
6213 (mail-parse-ignored-charsets
6214 (with-current-buffer gnus-summary-buffer
6215 gnus-newsgroup-ignored-charsets)))
6216 (gnus-bind-safe-url-regexp (mm-display-part preferred))
6220 (narrow-to-region (car begend) (point-max))
6222 nil (length gnus-article-mime-handle-alist)
6223 (gnus-article-mime-total-parts)
6224 (mm-handle-media-type preferred))))))
6225 (goto-char (point-max))
6226 (setcdr begend (point-marker)))))
6229 ;; Redraw attachment buttons in the header.
6230 (when gnus-mime-display-attachment-buttons-in-header
6231 (gnus-mime-buttonize-attachments-in-header)))
6233 (defconst gnus-article-wash-status-strings
6234 (let ((alist '((cite "c" "Possible hidden citation text"
6235 " " "All citation text visible")
6236 (headers "h" "Hidden headers"
6237 " " "All headers visible.")
6238 (pgp "p" "Encrypted or signed message status hidden"
6239 " " "No hidden encryption nor digital signature status")
6240 (signature "s" "Signature has been hidden"
6241 " " "Signature is visible")
6242 (overstrike "o" "Overstrike (^H) characters applied"
6243 " " "No overstrike characters applied")
6244 (emphasis "e" "/*_Emphasis_*/ characters applied"
6245 " " "No /*_emphasis_*/ characters applied")))
6247 (dolist (entry alist result)
6248 (let ((key (nth 0 entry))
6249 (on (copy-sequence (nth 1 entry)))
6250 (on-help (nth 2 entry))
6251 (off (copy-sequence (nth 3 entry)))
6252 (off-help (nth 4 entry)))
6253 (put-text-property 0 1 'help-echo on-help on)
6254 (put-text-property 0 1 'help-echo off-help off)
6255 (push (list key on off) result))))
6256 "Alist of strings describing wash status in the mode line.
6257 Each entry has the form (KEY ON OF), where the KEY is a symbol
6258 representing the particular washing function, ON is the string to use
6259 in the article mode line when the washing function is active, and OFF
6260 is the string to use when it is inactive.")
6262 (defun gnus-article-wash-status-entry (key value)
6263 (let ((entry (assoc key gnus-article-wash-status-strings)))
6264 (if value (nth 1 entry) (nth 2 entry))))
6266 (defun gnus-article-wash-status ()
6267 "Return a string which display status of article washing."
6268 (with-current-buffer gnus-article-buffer
6269 (let ((cite (memq 'cite gnus-article-wash-types))
6270 (headers (memq 'headers gnus-article-wash-types))
6271 (boring (memq 'boring-headers gnus-article-wash-types))
6272 (pgp (memq 'pgp gnus-article-wash-types))
6273 (pem (memq 'pem gnus-article-wash-types))
6274 (signed (memq 'signed gnus-article-wash-types))
6275 (encrypted (memq 'encrypted gnus-article-wash-types))
6276 (signature (memq 'signature gnus-article-wash-types))
6277 (overstrike (memq 'overstrike gnus-article-wash-types))
6278 (emphasis (memq 'emphasis gnus-article-wash-types)))
6280 (gnus-article-wash-status-entry 'cite cite)
6281 (gnus-article-wash-status-entry 'headers (or headers boring))
6282 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
6283 (gnus-article-wash-status-entry 'signature signature)
6284 (gnus-article-wash-status-entry 'overstrike overstrike)
6285 (gnus-article-wash-status-entry 'emphasis emphasis)))))
6287 (defun gnus-add-wash-type (type)
6288 "Add a washing of TYPE to the current status."
6289 (add-to-list 'gnus-article-wash-types type))
6291 (defun gnus-delete-wash-type (type)
6292 "Add a washing of TYPE to the current status."
6293 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
6295 (defun gnus-add-image (category image)
6296 "Add IMAGE of CATEGORY to the list of displayed images."
6297 (let ((entry (assq category gnus-article-image-alist)))
6299 (setq entry (list category))
6300 (push entry gnus-article-image-alist))
6301 (nconc entry (list image))))
6303 (defun gnus-delete-images (category)
6304 "Delete all images in CATEGORY."
6305 (let ((entry (assq category gnus-article-image-alist)))
6306 (dolist (image (cdr entry))
6307 (gnus-remove-image image category))
6308 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
6309 (gnus-delete-wash-type category)))
6311 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6313 (defun gnus-article-maybe-hide-headers ()
6314 "Hide unwanted headers if `gnus-have-all-headers' is nil.
6315 Provided for backwards compatibility."
6316 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
6317 (not (with-current-buffer gnus-summary-buffer
6318 gnus-have-all-headers)))
6319 (not gnus-inhibit-hiding))
6320 (gnus-article-hide-headers)))
6322 (declare-function shr-put-image "shr" (data alt &optional flags))
6324 (defun gnus-shr-put-image (data alt &optional flags)
6325 "Put image DATA with a string ALT. Enable image to be deleted."
6326 (let ((image (if flags
6327 (shr-put-image data (propertize (or alt "*")
6328 'gnus-image-category 'shr)
6330 ;; Old `shr-put-image' doesn't take the optional `flags'
6332 (shr-put-image data (propertize (or alt "*")
6333 'gnus-image-category 'shr)))))
6335 (gnus-add-image 'shr image))))
6337 (defun gnus-article-mime-handles (&optional alist id all)
6339 (let ((i 1) newid flat)
6340 (dolist (handle alist flat)
6341 (setq newid (append id (list i))
6343 (if (stringp (car handle))
6344 (setq flat (nconc flat (gnus-article-mime-handles
6345 (cdr handle) newid all)))
6346 (delq (rassq handle all) all)
6347 (setq flat (nconc flat (list (cons newid handle)))))))
6348 (let ((flat (list nil)))
6349 ;; Assume that elements of `gnus-article-mime-handle-alist'
6350 ;; are in the decreasing order, but unnumbered subsidiaries
6351 ;; in each element are in the increasing order.
6352 (dolist (handle (reverse gnus-article-mime-handle-alist))
6353 (if (stringp (cadr handle))
6354 (setq flat (nconc flat (gnus-article-mime-handles
6355 (cddr handle) (list (car handle)) flat)))
6356 (delq (rassq (cdr handle) flat) flat)
6357 (setq flat (nconc flat (list (cons (list (car handle))
6359 (setq flat (cdr flat))
6360 (mapc (lambda (handle)
6362 ;; This is a hidden (i.e. unnumbered) handle.
6365 (1+ (caar gnus-article-mime-handle-alist)))
6366 (push handle gnus-article-mime-handle-alist))
6367 (setcar handle (caar handle))))
6371 (defun gnus-mime-buttonize-attachments-in-header (&optional interactive)
6372 "Show attachments as buttons in the end of the header of an article.
6373 This function toggles the display when called interactively. Note that
6374 buttons to be added to the header are only the ones that aren't inlined
6375 in the body. Use `gnus-header-face-alist' to highlight buttons."
6376 (interactive (list t))
6377 (gnus-with-article-buffer
6378 (let ((case-fold-search t) buttons handle type st)
6382 (article-narrow-to-head)
6383 ;; Header buttons exist?
6384 (while (and (not buttons)
6385 (re-search-forward "^attachments?:[\n ]+" nil t))
6386 (when (get-char-property (match-end 0)
6387 'gnus-button-attachment-extra)
6388 (setq buttons (match-beginning 0))))
6391 ;; Delete header buttons.
6392 (delete-region buttons (if (re-search-forward "^[^ ]" nil t)
6395 (unless (and interactive buttons)
6398 (dolist (button (gnus-article-mime-handles))
6399 (setq handle (cdr button)
6400 type (mm-handle-media-type handle))
6401 (when (or (and (if (gnus-buffer-live-p gnus-summary-buffer)
6402 (with-current-buffer gnus-summary-buffer
6403 gnus-inhibit-images)
6404 gnus-inhibit-images)
6405 (string-match "\\`image/" type))
6406 (mm-inline-override-p handle)
6407 (and (mm-handle-disposition handle)
6408 (not (equal (car (mm-handle-disposition handle))
6410 (not (mm-attachment-override-p handle)))
6411 (not (mm-automatic-display-p handle))
6412 (not (or (and (mm-inlinable-p handle)
6413 (mm-inlined-p handle))
6414 (mm-automatic-external-display-p type))))
6415 (push button buttons)))
6417 ;; Add header buttons.
6420 (narrow-to-region (point) (point))
6421 (insert "Attachment" (if (cdr buttons) "s" "") ":")
6422 (dolist (button (nreverse buttons))
6425 (mm-handle-set-undisplayer
6426 (setq handle (copy-sequence (cdr button))) nil)
6427 (gnus-insert-mime-button handle (car button))
6428 (skip-chars-backward "\t\n ")
6429 (delete-region (point) (point-max))
6430 (when (> (current-column) (window-width))
6435 (dolist (ovl (gnus-overlays-in (point-min) (point)))
6436 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
6437 (gnus-overlay-put ovl 'face nil))
6438 (let ((gnus-treatment-function-alist
6439 '((gnus-treat-highlight-headers
6440 gnus-article-highlight-headers))))
6441 (gnus-treat-article 'head)))))))))
6445 (defun gnus-output-to-file (file-name)
6446 "Append the current article to a file named FILE-NAME.
6447 If `gnus-article-save-coding-system' is non-nil, it is used to encode
6448 text and used as the value of the coding cookie which is added to the
6449 top of a file. Otherwise, this function saves a raw article without
6451 (let* ((artbuf (current-buffer))
6452 (file-name-coding-system nnmail-pathname-coding-system)
6453 (coding gnus-article-save-coding-system)
6454 (coding-system-for-read (if coding
6455 nil ;; Rely on the coding cookie.
6456 mm-text-coding-system))
6457 (coding-system-for-write (or coding
6458 mm-text-coding-system-for-write
6459 mm-text-coding-system))
6460 (exists (file-exists-p file-name)))
6463 (insert-file-contents file-name)
6464 (goto-char (point-min))
6465 ;; Remove the existing coding cookie.
6466 (when (looking-at "X-Gnus-Coding-System: .+\n\n")
6467 (delete-region (match-beginning 0) (match-end 0))))
6468 (goto-char (point-max))
6469 (insert-buffer-substring artbuf)
6470 ;; Append newline at end of the buffer as separator, and then
6472 (goto-char (point-max))
6475 ;; If the coding system is not suitable to encode the text,
6476 ;; ask a user for a proper one.
6477 (when (fboundp 'select-safe-coding-system)
6478 (setq coding (coding-system-base
6479 (save-window-excursion
6480 (select-safe-coding-system (point-min) (point-max)
6482 (setq coding-system-for-write
6483 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
6485 (goto-char (point-min))
6486 ;; Add the coding cookie.
6487 (insert (format "X-Gnus-Coding-System: -*- coding: %s; -*-\n\n"
6488 coding-system-for-write)))
6491 (write-region (point-min) (point-max) file-name nil 'no-message)
6492 (message "Appended to %s" file-name))
6493 (write-region (point-min) (point-max) file-name))))
6496 (defun gnus-narrow-to-page (&optional arg)
6497 "Narrow the article buffer to a page.
6498 If given a numerical ARG, move forward ARG pages."
6500 (setq arg (if arg (prefix-numeric-value arg) 0))
6501 (with-current-buffer gnus-article-buffer
6503 ;; Remove any old next/prev buttons.
6504 (when (gnus-visual-p 'page-marker)
6505 (let ((inhibit-read-only t))
6506 (gnus-remove-text-with-property 'gnus-prev)
6507 (gnus-remove-text-with-property 'gnus-next)))
6509 (when (save-excursion
6511 (if (re-search-backward page-delimiter nil 'move (abs arg))
6513 (setq nd (match-beginning 0)
6515 (when (re-search-backward page-delimiter nil t)
6516 (setq st (match-end 0))))
6517 (when (re-search-forward page-delimiter nil t)
6518 (setq nd (match-beginning 0)
6521 (if (re-search-forward page-delimiter nil 'move arg)
6523 (setq st (match-end 0)
6525 (when (re-search-forward page-delimiter nil t)
6526 (setq nd (match-beginning 0))))
6527 (when (re-search-backward page-delimiter nil t)
6528 (setq st (match-end 0)
6531 (when (re-search-backward page-delimiter nil t)
6532 (goto-char (setq st (match-end 0))))
6533 (when (re-search-forward page-delimiter nil t)
6534 (setq nd (match-beginning 0)))
6536 (setq gnus-page-broken t)
6537 (when pt (goto-char pt))
6538 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6539 (when (gnus-visual-p 'page-marker)
6543 (gnus-insert-next-page-button))
6546 (gnus-insert-prev-page-button))))))))
6548 ;; Article mode commands
6550 (defun gnus-article-goto-next-page ()
6551 "Show the next page of the article."
6553 (when (gnus-article-next-page)
6554 (goto-char (point-min))
6555 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
6558 (defun gnus-article-goto-prev-page ()
6559 "Show the previous page of the article."
6561 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6562 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
6563 (gnus-article-prev-page nil)))
6565 ;; This is cleaner but currently breaks `gnus-pick-mode':
6567 ;; (defun gnus-article-goto-next-page ()
6568 ;; "Show the next page of the article."
6570 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6571 ;; (gnus-summary-next-page)))
6573 ;; (defun gnus-article-goto-prev-page ()
6574 ;; "Show the next page of the article."
6576 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6577 ;; (gnus-summary-prev-page)))
6579 (defun gnus-article-next-page (&optional lines)
6580 "Show the next page of the current article.
6581 If end of article, return non-nil. Otherwise return nil.
6582 Argument LINES specifies lines to be scrolled up."
6584 (move-to-window-line (if (featurep 'xemacs) -1 (- -1 scroll-margin)))
6585 (if (and (not (and gnus-article-over-scroll
6586 (> (count-lines (window-start) (point-max))
6587 (if (featurep 'xemacs)
6588 (or lines (1- (window-height)))
6589 (+ (or lines (1- (window-height))) scroll-margin)))))
6592 (and (pos-visible-in-window-p) ;Not continuation line.
6593 (>= (point) (point-max)))))
6594 ;; Nothing in this page.
6595 (if (or (not gnus-page-broken)
6600 (eobp)))) ;Real end-of-buffer?
6602 (when gnus-article-over-scroll
6603 (gnus-article-next-page-1 lines))
6605 (gnus-narrow-to-page 1) ;Go to next page.
6607 ;; More in this page.
6608 (gnus-article-next-page-1 lines)
6611 (defun gnus-article-beginning-of-window ()
6612 "Move point to the beginning of the window.
6613 In Emacs, the point is placed at the line number which `scroll-margin'
6615 (if (featurep 'xemacs)
6616 (move-to-window-line 0)
6617 ;; There is an obscure bug in Emacs that makes it impossible to
6618 ;; scroll past big pictures in the article buffer. Try to fix
6619 ;; this by adding a sanity check by counting the lines visible.
6620 (when (> (count-lines (window-start) (window-end)) 30)
6621 (move-to-window-line
6622 (min (max 0 scroll-margin)
6623 (max 1 (- (window-height)
6624 (if mode-line-format 1 0)
6625 (if header-line-format 1 0)
6628 (defvar scroll-in-place)
6630 (defun gnus-article-next-page-1 (lines)
6632 (let ((scroll-in-place nil)
6633 (auto-window-vscroll nil))
6636 ;; Long lines may cause an end-of-buffer error.
6637 (goto-char (point-max))))
6638 (gnus-article-beginning-of-window))
6640 (defun gnus-article-prev-page (&optional lines)
6641 "Show previous page of current article.
6642 Argument LINES specifies lines to be scrolled down."
6644 (move-to-window-line 0)
6645 (if (and gnus-page-broken
6647 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6649 (gnus-narrow-to-page -1) ;Go to previous page.
6650 (goto-char (point-max))
6651 (recenter (if gnus-article-over-scroll
6653 (max (if (featurep 'xemacs)
6655 (+ lines scroll-margin))
6657 (- (window-height) 2))
6661 (let ((scroll-in-place nil))
6662 (scroll-down lines))
6663 (beginning-of-buffer
6664 (goto-char (point-min))))
6665 (gnus-article-beginning-of-window))))
6667 (defun gnus-article-only-boring-p ()
6668 "Decide whether there is only boring text remaining in the article.
6669 Something \"interesting\" is a word of at least two letters that does
6670 not have a face in `gnus-article-boring-faces'."
6671 (when (and gnus-article-skip-boring
6672 (boundp 'gnus-article-boring-faces)
6673 (symbol-value 'gnus-article-boring-faces))
6675 (let ((inhibit-point-motion-hooks t))
6677 (while (re-search-forward "\\b\\w\\w" nil t)
6679 (when (not (gnus-intersection
6680 (gnus-faces-at (point))
6681 (symbol-value 'gnus-article-boring-faces)))
6682 (throw 'only-boring nil)))
6683 (throw 'only-boring t))))))
6685 (defun gnus-article-refer-article ()
6686 "Read article specified by message-id around point."
6689 (re-search-backward "[ \t]\\|^" (point-at-bol) t)
6690 (re-search-forward "<?news:<?\\|<" (point-at-eol) t)
6691 (if (re-search-forward "[^@ ]+@[^ \t>]+" (point-at-eol) t)
6692 (let ((msg-id (concat "<" (match-string 0) ">")))
6693 (set-buffer gnus-summary-buffer)
6694 (gnus-summary-refer-article msg-id))
6695 (error "No references around point"))))
6697 (defun gnus-article-show-summary ()
6698 "Reconfigure windows to show summary buffer."
6700 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6701 (error "There is no summary buffer for this article buffer")
6702 (gnus-article-set-globals)
6703 (gnus-configure-windows 'article)
6704 (gnus-summary-goto-subject gnus-current-article)
6705 (gnus-summary-position-point)))
6707 (defun gnus-article-describe-briefly ()
6708 "Describe article mode commands briefly."
6710 (gnus-message 6 "%s" (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")))
6712 (defun gnus-article-check-buffer ()
6713 "Beep if not in an article buffer."
6714 (unless (derived-mode-p 'gnus-article-mode)
6715 (error "Command invoked outside of a Gnus article buffer")))
6717 (defvar gnus-pick-mode)
6719 (defun gnus-article-read-summary-keys (&optional _arg key not-restore-window)
6720 "Read a summary buffer key sequence and execute it from the article buffer."
6722 (gnus-article-check-buffer)
6724 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6725 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6726 "=" "^" "\M-^" "|"))
6728 '("A " "A<" "A>" "AM" "AP" "AR" "AT" "A\C-?" "A\M-\r" "A\r" "Ab" "Ae"
6729 "An" "Ap" [?A (meta return)] [?A delete]))
6733 (with-current-buffer gnus-article-current-summary
6734 (let (gnus-pick-mode)
6735 (setq unread-command-events (nconc unread-command-events
6736 (list (or key last-command-event)))
6737 keys (if (featurep 'xemacs)
6738 (events-to-keys (read-key-sequence nil t))
6739 (read-key-sequence nil t)))))
6744 ((eq (aref keys (1- (length keys))) ?\C-h)
6745 (gnus-article-describe-bindings (substring keys 0 -1)))
6746 ((or (member keys nosaves)
6747 (member keys nosave-but-article)
6748 (member keys nosave-in-article))
6750 (save-window-excursion
6751 (pop-to-buffer gnus-article-current-summary)
6752 ;; We disable the pick minor mode commands.
6753 (let (gnus-pick-mode)
6754 (setq func (key-binding keys t))))
6758 (unless (member keys nosave-in-article)
6759 (set-buffer gnus-article-current-summary))
6760 (when (and (symbolp func)
6761 (get func 'disabled))
6762 (error "Function %s disabled" func))
6763 (call-interactively func)
6764 (setq new-sum-point (point)))
6765 (when (member keys nosave-but-article)
6766 (pop-to-buffer gnus-article-buffer))))
6768 ;; These commands should restore window configuration.
6769 (let ((obuf (current-buffer))
6770 (owin (current-window-configuration))
6771 win func in-buffer selected new-sum-start new-sum-hscroll err)
6772 (cond (not-restore-window
6773 (pop-to-buffer gnus-article-current-summary)
6774 (setq win (selected-window)))
6775 ((setq win (get-buffer-window gnus-article-current-summary))
6776 (select-window win))
6778 (let ((summary-buffer gnus-article-current-summary))
6779 (gnus-configure-windows 'article)
6780 (unless (setq win (get-buffer-window summary-buffer 'visible))
6781 (let ((gnus-buffer-configuration
6782 '((article ((vertical 1.0
6783 (summary 0.25 point)
6785 (gnus-configure-windows 'article))
6786 (setq win (get-buffer-window summary-buffer 'visible)))
6787 (gnus-select-frame-set-input-focus (window-frame win))
6788 (select-window win))))
6789 (setq in-buffer (current-buffer))
6790 ;; We disable the pick minor mode commands.
6791 (setq func (let (gnus-pick-mode)
6792 (key-binding keys t)))
6793 (when (get func 'disabled)
6794 (error "Function %s disabled" func))
6797 (condition-case code
6799 (call-interactively func)
6805 (when (eq win (selected-window))
6806 (setq new-sum-point (point)
6807 new-sum-start (window-start win)
6808 new-sum-hscroll (window-hscroll win)))
6809 (when (or (eq in-buffer (current-buffer))
6810 (when (eq obuf (current-buffer))
6811 (set-buffer in-buffer)
6813 (setq selected (ignore-errors (gnus-summary-select-article)))
6815 (unless not-restore-window
6816 (set-window-configuration owin))
6817 (when (and (eq selected 'old)
6819 (set-window-start (get-buffer-window (current-buffer))
6821 (set-window-point (get-buffer-window (current-buffer))
6822 (if (article-goto-body)
6825 (when (and (not not-restore-window)
6828 (with-current-buffer (window-buffer win)
6829 (derived-mode-p 'gnus-summary-mode)))
6830 (set-window-point win new-sum-point)
6831 (set-window-start win new-sum-start)
6832 (set-window-hscroll win new-sum-hscroll))))
6833 (set-window-configuration owin)
6835 (signal (car err) (cdr err))
6838 (defun gnus-article-read-summary-send-keys ()
6840 (let ((unread-command-events (list (gnus-character-to-event ?S))))
6841 (gnus-article-read-summary-keys)))
6843 (defun gnus-article-describe-key (key)
6844 "Display documentation of the function invoked by KEY.
6845 KEY is a string or a vector."
6846 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6847 (read-key-sequence "Describe key: "))))
6848 (gnus-article-check-buffer)
6849 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6850 gnus-article-read-summary-send-keys))
6851 (with-current-buffer gnus-article-current-summary
6852 (setq unread-command-events
6853 (if (featurep 'xemacs)
6855 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6856 (list 'meta (- x 128))
6859 (let ((cursor-in-echo-area t)
6861 (describe-key (read-key-sequence nil t))))
6862 (describe-key key)))
6864 (defun gnus-article-describe-key-briefly (key &optional insert)
6865 "Display documentation of the function invoked by KEY.
6866 KEY is a string or a vector."
6867 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6868 (read-key-sequence "Describe key: "))
6869 current-prefix-arg))
6870 (gnus-article-check-buffer)
6871 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6872 gnus-article-read-summary-send-keys))
6873 (with-current-buffer gnus-article-current-summary
6874 (setq unread-command-events
6875 (if (featurep 'xemacs)
6877 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6878 (list 'meta (- x 128))
6881 (let ((cursor-in-echo-area t)
6883 (describe-key-briefly (read-key-sequence nil t) insert)))
6884 (describe-key-briefly key insert)))
6886 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6887 (defvar gnus-agent-summary-mode)
6888 (defvar gnus-draft-mode)
6889 (defvar help-xref-stack-item)
6890 (defvar help-xref-following)
6892 (defun gnus-article-describe-bindings (&optional prefix)
6893 "Show a list of all defined keys, and their definitions.
6894 The optional argument PREFIX, if non-nil, should be a key sequence;
6895 then we display only bindings that start with that prefix."
6897 (gnus-article-check-buffer)
6898 (let ((keymap (copy-keymap gnus-article-mode-map))
6899 (map (copy-keymap gnus-article-send-map))
6900 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6902 (define-key keymap "S" map)
6903 (define-key map [t] nil)
6904 (with-current-buffer gnus-article-current-summary
6907 (if (setq parent (keymap-parent gnus-article-mode-map))
6909 (setq parent (copy-keymap parent))
6910 (set-keymap-parent parent (current-local-map)))
6911 (current-local-map)))
6912 (set-keymap-parent map (key-binding "S"))
6913 (let (key def gnus-pick-mode)
6915 (setq key (pop sumkeys))
6916 (cond ((and (vectorp key) (= (length key) 1)
6917 (consp (setq def (aref key 0)))
6918 (numberp (car def)) (numberp (cdr def)))
6919 (when (< (max (car def) (cdr def)) 128)
6923 (nreverse (gnus-uncompress-range def)))
6925 ((setq def (key-binding key))
6926 (unless (eq def 'undefined)
6927 (define-key keymap key def))))))
6928 (when (boundp 'gnus-agent-summary-mode)
6929 (setq agent gnus-agent-summary-mode))
6930 (when (boundp 'gnus-draft-mode)
6931 (setq draft gnus-draft-mode)))
6933 (use-local-map keymap)
6934 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6935 (set (make-local-variable 'gnus-draft-mode) draft)
6936 (describe-bindings prefix))
6937 (let ((item `((lambda (prefix)
6938 (with-current-buffer ,(current-buffer)
6939 (gnus-article-describe-bindings prefix)))
6941 ;; Loading `help-mode' here is necessary if `describe-bindings'
6942 ;; is replaced with something, e.g. `helm-descbinds'.
6943 (require 'help-mode)
6944 (with-current-buffer (let (help-xref-following) (help-buffer))
6945 (setq help-xref-stack-item item)))))
6947 (defun gnus-article-reply-with-original (&optional wide)
6948 "Start composing a reply mail to the current message.
6949 The text in the region will be yanked. If the region isn't active,
6950 the entire article will be yanked."
6952 (let ((article (cdr gnus-article-current))
6954 (if (not (gnus-region-active-p))
6955 (with-current-buffer gnus-summary-buffer
6956 (gnus-summary-reply (list (list article)) wide))
6957 (setq contents (buffer-substring (point) (mark t)))
6958 ;; Deactivate active regions.
6959 (when (and (boundp 'transient-mark-mode)
6960 transient-mark-mode)
6961 (setq mark-active nil))
6962 (with-current-buffer gnus-summary-buffer
6964 (list (list article contents)) wide)))))
6966 (defun gnus-article-wide-reply-with-original ()
6967 "Start composing a wide reply mail to the current message.
6968 The text in the region will be yanked. If the region isn't active,
6969 the entire article will be yanked."
6971 (gnus-article-reply-with-original t))
6973 (defun gnus-article-followup-with-original ()
6974 "Compose a followup to the current article.
6975 The text in the region will be yanked. If the region isn't active,
6976 the entire article will be yanked."
6978 (let ((article (cdr gnus-article-current))
6980 (if (not (gnus-region-active-p))
6981 (with-current-buffer gnus-summary-buffer
6982 (gnus-summary-followup (list (list article))))
6983 (setq contents (buffer-substring (point) (mark t)))
6984 ;; Deactivate active regions.
6985 (when (and (boundp 'transient-mark-mode)
6986 transient-mark-mode)
6987 (setq mark-active nil))
6988 (with-current-buffer gnus-summary-buffer
6989 (gnus-summary-followup
6990 (list (list article contents)))))))
6992 (defun gnus-article-hide (&optional arg force)
6993 "Hide all the gruft in the current article.
6994 This means that signatures, cited text and (some) headers will be
6996 If given a prefix, show the hidden text instead."
6997 (interactive (append (gnus-article-hidden-arg) (list 'force)))
6998 (gnus-article-hide-headers arg)
6999 (gnus-article-hide-list-identifiers arg)
7000 (gnus-article-hide-citation-maybe arg force)
7001 (gnus-article-hide-signature arg))
7003 (defun gnus-check-group-server ()
7004 ;; Make sure the connection to the server is alive.
7005 (unless (gnus-server-opened
7006 (gnus-find-method-for-group gnus-newsgroup-name))
7007 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
7008 (gnus-request-group gnus-newsgroup-name t)))
7011 (autoload 'nneething-get-file-name "nneething"))
7013 (defun gnus-request-article-this-buffer (article group)
7014 "Get an article and insert it into this buffer."
7015 (let (do-update-line sparse-header)
7019 (gnus-kill-all-overlays)
7020 (setq group (or group gnus-newsgroup-name))
7022 ;; Using `gnus-request-article' directly will insert the article into
7023 ;; `nntp-server-buffer' - so we'll save some time by not having to
7024 ;; copy it from the server buffer into the article buffer.
7026 ;; We only request an article by message-id when we do not have the
7027 ;; headers for it, so we'll have to get those.
7028 (when (stringp article)
7029 (gnus-read-header article))
7031 ;; If the article number is negative, that means that this article
7032 ;; doesn't belong in this newsgroup (possibly), so we find its
7033 ;; message-id and request it by id instead of number.
7034 (when (and (numberp article)
7036 (get-buffer gnus-summary-buffer)
7037 (gnus-buffer-exists-p gnus-summary-buffer))
7038 (with-current-buffer gnus-summary-buffer
7039 (let ((header (gnus-summary-article-header article)))
7042 ((memq article gnus-newsgroup-sparse)
7043 ;; This is a sparse gap article.
7044 (setq do-update-line article)
7045 (setq article (mail-header-id header))
7046 (setq sparse-header (gnus-read-header article))
7047 (setq gnus-newsgroup-sparse
7048 (delq article gnus-newsgroup-sparse)))
7050 ;; It's a real article.
7051 (setq article (mail-header-id header)))
7053 ;; It is an extracted pseudo-article.
7054 (setq article 'pseudo)
7055 (gnus-request-pseudo-article header))))
7057 (let ((method (gnus-find-method-for-group
7058 gnus-newsgroup-name)))
7059 (when (and (eq (car method) 'nneething)
7061 (let ((dir (nneething-get-file-name
7062 (mail-header-id header))))
7063 (when (and (stringp dir)
7064 (file-directory-p dir))
7065 (setq article 'nneething)
7066 (gnus-group-enter-directory dir))))))))
7069 ;; Refuse to select canceled articles.
7070 ((and (numberp article)
7072 (get-buffer gnus-summary-buffer)
7073 (gnus-buffer-exists-p gnus-summary-buffer)
7074 (eq (cdr (with-current-buffer gnus-summary-buffer
7075 (assq article gnus-newsgroup-reads)))
7076 gnus-canceled-mark))
7078 ;; We first check `gnus-original-article-buffer'.
7079 ((and (get-buffer gnus-original-article-buffer)
7081 (with-current-buffer gnus-original-article-buffer
7082 (and (equal (car gnus-original-article) group)
7083 (eq (cdr gnus-original-article) article))))
7084 ;; `insert-buffer-substring' would incorrectly use the
7085 ;; equivalent of string-make-multibyte which amount to decoding
7086 ;; with locale-coding-system, causing failure of
7087 ;; subsequent decoding.
7088 (insert (mm-string-to-multibyte
7089 (with-current-buffer gnus-original-article-buffer
7090 (buffer-substring (point-min) (point-max)))))
7092 ;; Check the backlog.
7093 ((and gnus-keep-backlog
7094 (gnus-backlog-request-article group article (current-buffer)))
7096 ;; Check asynchronous pre-fetch.
7097 ((gnus-async-request-fetched-article group article (current-buffer))
7098 (gnus-async-prefetch-next group article gnus-summary-buffer)
7099 (when (and (numberp article) gnus-keep-backlog)
7100 (gnus-backlog-enter-article group article (current-buffer)))
7103 ((and gnus-use-cache
7105 (gnus-cache-request-article article group))
7107 ;; Check the agent cache.
7108 ((gnus-agent-request-article article group)
7110 ;; Get the article and put into the article buffer.
7111 ((or (stringp article)
7113 (let ((gnus-override-method gnus-override-method)
7114 (methods (and (stringp article)
7115 (with-current-buffer gnus-summary-buffer
7116 (gnus-refer-article-methods))))
7117 (backend (car (gnus-find-method-for-group
7118 gnus-newsgroup-name)))
7120 (inhibit-read-only t))
7121 (when (and (null gnus-override-method)
7123 (setq gnus-override-method (pop methods)))
7126 (gnus-kill-all-overlays)
7127 (let ((gnus-newsgroup-name group))
7128 (gnus-check-group-server))
7130 ((gnus-request-article article group (current-buffer))
7131 (when (numberp article)
7132 (gnus-async-prefetch-next group article
7133 gnus-summary-buffer)
7134 (when gnus-keep-backlog
7135 (gnus-backlog-enter-article
7136 group article (current-buffer)))
7137 (when (and gnus-agent
7138 (gnus-agent-group-covered-p group))
7139 (gnus-agent-store-article article group)))
7140 (setq result 'article))
7142 (setq gnus-override-method (pop methods)))
7143 ((not (string-match "^400 "
7144 (nnheader-get-report backend)))
7145 ;; If we get 400 server disconnect, reconnect and
7146 ;; retry; otherwise, assume the article has expired.
7147 (setq result 'done))))
7148 (and (eq result 'article) 'article)))
7152 ;; Associate this article with the current summary buffer.
7153 (setq gnus-article-current-summary gnus-summary-buffer)
7155 ;; Take the article from the original article buffer
7156 ;; and place it in the buffer it's supposed to be in.
7157 (when (and (get-buffer gnus-article-buffer)
7158 (equal (buffer-name (current-buffer))
7159 (buffer-name (get-buffer gnus-article-buffer))))
7161 (if (get-buffer gnus-original-article-buffer)
7162 (set-buffer gnus-original-article-buffer)
7163 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
7164 (buffer-disable-undo)
7165 (setq major-mode 'gnus-original-article-mode)
7166 (setq buffer-read-only t))
7167 (let ((inhibit-read-only t))
7169 (insert-buffer-substring gnus-article-buffer))
7170 (setq gnus-original-article (cons group article)))
7173 (run-hooks 'gnus-article-decode-hook)
7174 ;; Mark article as decoded or not.
7175 (setq gnus-article-decoded-p gnus-article-decode-hook))
7177 ;; Update sparse articles.
7178 (when (and do-update-line
7179 (or (numberp article)
7181 (let ((buf (current-buffer)))
7182 (set-buffer gnus-summary-buffer)
7183 (gnus-summary-update-article do-update-line sparse-header)
7184 (gnus-summary-goto-subject do-update-line nil t)
7185 (set-window-point (gnus-get-buffer-window (current-buffer) t)
7187 (set-buffer buf))))))
7189 (defun gnus-block-private-groups (group)
7190 (if (or (gnus-news-group-p group)
7191 (gnus-member-of-valid 'global group))
7192 ;; Block nothing in news groups.
7194 ;; Block everything anywhere else.
7197 (defun gnus-blocked-images ()
7198 (if (functionp gnus-blocked-images)
7199 (funcall gnus-blocked-images gnus-newsgroup-name)
7200 gnus-blocked-images))
7206 (defcustom gnus-article-edit-mode-hook nil
7207 "Hook run in article edit mode buffers."
7208 :group 'gnus-article-various
7211 (defvar gnus-article-edit-done-function nil)
7213 (defvar gnus-article-edit-mode-map nil)
7215 ;; Should we be using derived.el for this?
7216 (unless gnus-article-edit-mode-map
7217 (setq gnus-article-edit-mode-map (make-keymap))
7218 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
7220 (gnus-define-keys gnus-article-edit-mode-map
7221 "\C-c?" describe-mode
7222 "\C-c\C-c" gnus-article-edit-done
7223 "\C-c\C-k" gnus-article-edit-exit
7224 "\C-c\C-f\C-t" message-goto-to
7225 "\C-c\C-f\C-o" message-goto-from
7226 "\C-c\C-f\C-b" message-goto-bcc
7227 ;;"\C-c\C-f\C-w" message-goto-fcc
7228 "\C-c\C-f\C-c" message-goto-cc
7229 "\C-c\C-f\C-s" message-goto-subject
7230 "\C-c\C-f\C-r" message-goto-reply-to
7231 "\C-c\C-f\C-n" message-goto-newsgroups
7232 "\C-c\C-f\C-d" message-goto-distribution
7233 "\C-c\C-f\C-f" message-goto-followup-to
7234 "\C-c\C-f\C-m" message-goto-mail-followup-to
7235 "\C-c\C-f\C-k" message-goto-keywords
7236 "\C-c\C-f\C-u" message-goto-summary
7237 "\C-c\C-f\C-i" message-insert-or-toggle-importance
7238 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
7239 "\C-c\C-b" message-goto-body
7240 "\C-c\C-i" message-goto-signature
7242 "\C-c\C-t" message-insert-to
7243 "\C-c\C-n" message-insert-newsgroups
7244 "\C-c\C-o" message-sort-headers
7245 "\C-c\C-e" message-elide-region
7246 "\C-c\C-v" message-delete-not-region
7247 "\C-c\C-z" message-kill-to-signature
7248 "\M-\r" message-newline-and-reformat
7249 "\C-c\C-a" mml-attach-file
7250 "\C-a" message-beginning-of-line
7252 "\M-;" comment-region)
7254 (gnus-define-keys (gnus-article-edit-wash-map
7255 "\C-c\C-w" gnus-article-edit-mode-map)
7256 "f" gnus-article-edit-full-stops))
7259 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
7261 ["Fetch To" message-insert-to t]
7262 ["Fetch Newsgroups" message-insert-newsgroups t]
7264 ["To" message-goto-to t]
7265 ["From" message-goto-from t]
7266 ["Subject" message-goto-subject t]
7267 ["Cc" message-goto-cc t]
7268 ["Reply-To" message-goto-reply-to t]
7269 ["Summary" message-goto-summary t]
7270 ["Keywords" message-goto-keywords t]
7271 ["Newsgroups" message-goto-newsgroups t]
7272 ["Followup-To" message-goto-followup-to t]
7273 ["Mail-Followup-To" message-goto-mail-followup-to t]
7274 ["Distribution" message-goto-distribution t]
7275 ["Body" message-goto-body t]
7276 ["Signature" message-goto-signature t]))
7278 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
7279 "Major mode for editing articles.
7280 This is an extended text-mode.
7282 \\{gnus-article-edit-mode-map}"
7283 (make-local-variable 'gnus-article-edit-done-function)
7284 (make-local-variable 'gnus-prev-winconf)
7285 (set (make-local-variable 'font-lock-defaults)
7286 '(message-font-lock-keywords t))
7287 (set (make-local-variable 'mail-header-separator) "")
7288 (set (make-local-variable 'gnus-article-edit-mode) t)
7289 (easy-menu-add message-mode-field-menu message-mode-map)
7291 (setq buffer-read-only nil)
7292 (buffer-enable-undo)
7295 (defun gnus-article-edit (&optional force)
7296 "Edit the current article.
7297 This will have permanent effect only in mail groups.
7298 If FORCE is non-nil, allow editing of articles even in read-only
7301 (when (and (not force)
7302 (gnus-group-read-only-p))
7303 (error "The current newsgroup does not support article editing"))
7304 (gnus-article-date-original)
7305 (gnus-article-edit-article
7307 `(lambda (no-highlight)
7309 (gnus-summary-edit-article-done
7310 ,(or (mail-header-references gnus-current-headers) "")
7311 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
7313 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
7314 "Start editing the contents of the current article buffer."
7315 (let ((winconf (current-window-configuration)))
7316 (set-buffer gnus-article-buffer)
7317 (let ((message-auto-save-directory
7318 ;; Don't associate the article buffer with a draft file.
7320 (gnus-article-edit-mode))
7321 (funcall start-func)
7322 (set-buffer-modified-p nil)
7323 (gnus-configure-windows 'edit-article)
7324 (setq gnus-article-edit-done-function exit-func)
7325 (setq gnus-prev-winconf winconf)
7327 (gnus-message 6 "C-c C-c to end edits"))))
7329 (defun gnus-article-edit-done (&optional arg)
7330 "Update the article edits and exit."
7332 (let ((func gnus-article-edit-done-function)
7333 (buf (current-buffer))
7334 (start (window-start))
7335 (winconf gnus-prev-winconf))
7336 (widen) ;; Widen it in case that users narrowed the buffer.
7339 ;; The cache and backlog have to be flushed somewhat.
7340 (when gnus-keep-backlog
7341 (gnus-backlog-remove-article
7342 (car gnus-article-current) (cdr gnus-article-current)))
7343 ;; Flush original article as well.
7344 (gnus-flush-original-article-buffer)
7345 (when gnus-use-cache
7346 (gnus-cache-update-article
7347 (car gnus-article-current) (cdr gnus-article-current)))
7348 ;; We remove all text props from the article buffer.
7349 (kill-all-local-variables)
7350 (set-text-properties (point-min) (point-max) nil)
7352 (set-window-configuration winconf)
7354 (set-window-start (get-buffer-window buf) start)
7355 (set-window-point (get-buffer-window buf) (point)))
7356 (gnus-summary-show-article))
7358 (defun gnus-flush-original-article-buffer ()
7359 (when (get-buffer gnus-original-article-buffer)
7360 (with-current-buffer gnus-original-article-buffer
7361 (setq gnus-original-article nil))))
7363 (defun gnus-article-edit-exit ()
7364 "Exit the article editing without updating."
7366 (when (or (not (buffer-modified-p))
7367 (yes-or-no-p "Article modified; kill anyway? "))
7368 (let ((curbuf (current-buffer))
7370 (window-start (window-start)))
7372 (if (gnus-buffer-live-p gnus-original-article-buffer)
7373 (insert-buffer-substring gnus-original-article-buffer))
7374 (let ((winconf gnus-prev-winconf))
7375 (kill-all-local-variables)
7377 (set-window-configuration winconf)
7378 ;; Tippy-toe some to make sure that point remains where it was.
7379 (save-current-buffer
7381 (set-window-start (get-buffer-window (current-buffer)) window-start)
7383 (gnus-summary-show-article)))
7385 (defun gnus-article-edit-full-stops ()
7386 "Interactively repair spacing at end of sentences."
7389 (goto-char (point-min))
7390 (search-forward-regexp "^$" nil t)
7391 (let ((case-fold-search nil))
7392 (query-replace-regexp "\\([.!?][])}]* \\)\\([[({A-Z]\\)" "\\1 \\2"))))
7395 ;;; Article highlights
7398 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
7400 ;;; Internal Variables:
7402 (defcustom gnus-button-url-regexp
7404 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|"
7405 "nntp\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)"
7406 "\\(//[-a-z0-9_.]+:[0-9]*\\)?"
7407 (if (string-match "[[:digit:]]" "1") ;; Support POSIX?
7408 (let ((chars "-a-z0-9_=#$@~%&*+\\/[:word:]")
7412 ;; Match paired parentheses, e.g. in Wikipedia URLs:
7413 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
7414 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)"
7415 "\\(?:" "[" chars punct "]+" "[" chars "]" "\\)?"
7417 "[" chars punct "]+" "[" chars "]"
7419 (concat ;; XEmacs 21.4 doesn't support POSIX.
7420 "\\([-a-z0-9_=!?#$@~%&*+\\/:;.,]\\|\\w\\)+"
7421 "\\([-a-z0-9_=#$@~%&*+\\/]\\|\\w\\)"))
7423 "Regular expression that matches URLs."
7425 :group 'gnus-article-buttons
7428 (defcustom gnus-button-valid-fqdn-regexp
7429 message-valid-fqdn-regexp
7430 "Regular expression that matches a valid FQDN."
7432 :group 'gnus-article-buttons
7435 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
7436 (defcustom gnus-button-valid-localpart-regexp
7437 "[a-z0-9$%(*-=?[_][^<>\")!;:,{}\n\t @]*"
7438 "Regular expression that matches a localpart of mail addresses or MIDs."
7440 :group 'gnus-article-buttons
7443 (defcustom gnus-button-man-handler 'manual-entry
7444 "Function to use for displaying man pages.
7445 The function must take at least one argument with a string naming the
7448 :type '(choice (function-item :tag "Man" manual-entry)
7449 (function-item :tag "Woman" woman)
7450 (function :tag "Other"))
7451 :group 'gnus-article-buttons)
7453 (defcustom gnus-button-mid-or-mail-regexp
7454 (concat "\\b\\(<?" gnus-button-valid-localpart-regexp "@"
7455 gnus-button-valid-fqdn-regexp
7457 "Regular expression that matches a message ID or a mail address."
7459 :group 'gnus-article-buttons
7462 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
7463 "What to do when the button on a string as \"foo123@bar.invalid\" is pushed.
7464 Strings like this can be either a message ID or a mail address. If it is one
7465 of the symbols `mid' or `mail', Gnus will always assume that the string is a
7466 message ID or a mail address, respectively. If this variable is set to the
7467 symbol `ask', always query the user what do do. If it is a function, this
7468 function will be called with the string as its only argument. The function
7469 must return `mid', `mail', `invalid' or `ask'."
7471 :group 'gnus-article-buttons
7472 :type '(choice (function-item :tag "Heuristic function"
7473 gnus-button-mid-or-mail-heuristic)
7478 (defcustom gnus-button-mid-or-mail-heuristic-alist
7479 '((-10.0 . ".+\\$.+@")
7482 (-5.0 . "\\+[^+]*\\+.*@") ;; # two plus signs
7483 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7484 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7485 (-1.0 . "^[^a-z]+@")
7487 (-5.0 . "\\.[0-9][0-9]+.*@") ;; "\.[0-9]{2,}.*\@"
7488 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7489 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7490 (-5.0 . "\\...?.?@") ;; (-5.0 . "\..{1,3}\@")
7493 (-1.0 . "^[0-9][0-9]")
7495 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7496 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7497 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7498 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7500 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7501 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7504 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7506 ;; compensation for TDMA dated mail addresses:
7507 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7509 (-20.0 . "\\.fsf@") ;; Gnus
7512 (-20.0 . "^alpine\\.")
7513 (-20.0 . "_-_") ;; Subject change in thread
7515 (-20.0 . "\\.ln@") ;; leafnode
7516 (-30.0 . "@ID-[0-9]+\\.[a-zA-Z]+\\.dfncis\\.de")
7517 (-30.0 . "@4[Aa][Xx]\\.com") ;; Forte Agent
7519 ;; (5.0 . "") ;; $local_part_len <= 7
7520 (10.0 . "^[^0-9]+@")
7521 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7522 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7525 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7527 (0.5 . "^[A-Z][a-z]")
7528 (0.5 . "^[A-Z][a-z][a-z]")
7529 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7530 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7531 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
7533 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7534 address. The REGEXP is processed with `case-fold-search' set to nil."
7536 :group 'gnus-article-buttons
7537 :type '(repeat (cons (number :tag "Rate")
7538 (regexp :tag "Regexp"))))
7540 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7541 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7542 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7543 address, `ask' if unsure and `invalid' if the string is invalid."
7544 (let ((case-fold-search nil)
7545 (list gnus-button-mid-or-mail-heuristic-alist)
7546 (result 0) rate regexp lpartlen elem)
7548 (length (gnus-replace-in-string mid-or-mail "^\\(.*\\)@.*$" "\\1")))
7549 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7550 ;; Certain special cases...
7553 "^0[0-9]+-[0-9][0-9][0-9][0-9]@t-online\\.de$\\|"
7554 "^[0-9]+\\.[0-9]+@compuserve\\|"
7555 "@public\\.gmane\\.org")
7557 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7558 (setq result 'mail))
7559 (when (string-match "@.*@\\| " mid-or-mail)
7560 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7561 (setq result 'invalid))
7562 ;; Nothing more to do, if result is not a number here...
7563 (when (numberp result)
7565 (setq elem (car list)
7569 (when (string-match regexp mid-or-mail)
7570 (setq result (+ result rate))
7572 9 "`%s' matched `%s', rate `%s', result `%s'."
7573 mid-or-mail regexp rate result)))
7574 (when (<= lpartlen 7)
7575 (setq result (+ result 5.0))
7576 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7577 mid-or-mail result))
7578 (when (>= lpartlen 12)
7579 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7581 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7582 ;; Long local part should contain realname if e-mail address,
7583 ;; too many digits: message-id.
7584 ;; $score -= 5.0 + 0.1 * $local_part_len;
7585 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7586 (setq result (+ result rate))
7588 9 "Many digits in `%s', rate `%s', result `%s'."
7589 mid-or-mail rate result))
7590 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
7592 ;; Too few vowels [^aeiouy]{4,}.*\@
7593 (setq result (+ result -5.0))
7595 9 "Few vowels in `%s', rate `%s', result `%s'."
7596 mid-or-mail -5.0 result))
7598 (setq result (+ result 5.0))
7600 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7601 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7602 ;; Maybe we should make this a customizable alist: (condition . 'result)
7604 ((symbolp result) result)
7605 ;; Now convert number into proper results:
7606 ((< result -10.0) 'mid)
7607 ((> result 10.0) 'mail)
7610 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7611 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7612 (url-mid (concat "news" ":" mid-or-mail))
7613 (url-mailto (concat "mailto" ":" mid-or-mail)))
7614 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7615 (when (fboundp pref)
7617 ;; get rid of surrounding angles...
7619 (gnus-replace-in-string mid-or-mail "^<\\|>$" "")))
7620 (if (or (eq 'mid guessed) (eq 'mail guessed))
7624 (save-window-excursion
7625 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7628 (cond ((eq pref 'mid)
7629 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7630 (gnus-button-handle-news url-mid))
7632 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7633 (gnus-url-mailto url-mailto))
7634 (t (gnus-message 3 "Invalid string.")))))
7636 (defun gnus-button-handle-custom (fun arg)
7637 "Call function FUN on argument ARG.
7638 Both FUN and ARG are supposed to be strings. ARG will be passed
7639 as a symbol to FUN."
7640 (funcall (intern fun)
7641 (if (string-match "^customize-apropos" fun)
7645 (defvar gnus-button-handle-describe-prefix "^\\(C-h\\|<?[Ff]1>?\\)")
7647 (defun gnus-button-handle-describe-function (url)
7648 "Call `describe-function' when pushing the corresponding URL button."
7651 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7653 (defun gnus-button-handle-describe-variable (url)
7654 "Call `describe-variable' when pushing the corresponding URL button."
7657 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7659 (defun gnus-button-handle-symbol (url)
7660 "Display help on variable or function.
7661 Calls `describe-variable' or `describe-function'."
7662 (let ((sym (intern url)))
7664 ((fboundp sym) (describe-function sym))
7665 ((boundp sym) (describe-variable sym))
7666 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7668 (defun gnus-button-handle-describe-key (url)
7669 "Call `describe-key' when pushing the corresponding URL button."
7671 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
7672 (keys (ignore-errors (eval `(kbd ,key-string)))))
7675 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7677 (defun gnus-button-handle-apropos (url)
7678 "Call `apropos' when pushing the corresponding URL button."
7679 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7681 (defun gnus-button-handle-apropos-command (url)
7682 "Call `apropos' when pushing the corresponding URL button."
7684 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7686 (defun gnus-button-handle-apropos-variable (url)
7687 "Call `apropos' when pushing the corresponding URL button."
7689 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
7690 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7692 (defun gnus-button-handle-apropos-documentation (url)
7693 "Call `apropos' when pushing the corresponding URL button."
7695 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
7696 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7698 (defun gnus-button-handle-library (url)
7699 "Call `locate-library' when pushing the corresponding URL button."
7700 (gnus-message 9 "url=`%s'" url)
7701 (let* ((lib (locate-library url))
7702 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
7704 (gnus-message 1 "Cannot locale library `%s'." url)
7705 (find-file-read-only file))))
7707 (defcustom gnus-button-man-level 5
7708 "*Integer that says how many man-related buttons Gnus will show.
7709 The higher the number, the more buttons will appear and the more false
7710 positives are possible. Note that you can set this variable local to
7711 specific groups. Setting it higher in Unix groups is probably a good idea.
7712 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7713 how to set variables in specific groups."
7715 :group 'gnus-article-buttons
7716 :link '(custom-manual "(gnus)Group Parameters")
7719 (defcustom gnus-button-emacs-level 5
7720 "*Integer that says how many emacs-related buttons Gnus will show.
7721 The higher the number, the more buttons will appear and the more false
7722 positives are possible. Note that you can set this variable local to
7723 specific groups. Setting it higher in Emacs or Gnus related groups is
7724 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7725 `gnus-parameters' on how to set variables in specific groups."
7727 :group 'gnus-article-buttons
7728 :link '(custom-manual "(gnus)Group Parameters")
7731 (defcustom gnus-button-message-level 5
7732 "*Integer that says how many buttons for news or mail messages will appear.
7733 The higher the number, the more buttons will appear and the more false
7734 positives are possible."
7735 ;; mail addresses, MIDs, URLs for news, ...
7737 :group 'gnus-article-buttons
7740 (defcustom gnus-button-browse-level 5
7741 "*Integer that says how many buttons for browsing will appear.
7742 The higher the number, the more buttons will appear and the more false
7743 positives are possible."
7744 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7746 :group 'gnus-article-buttons
7749 (defcustom gnus-button-alist
7750 '(("<\\(url:[>\n\t ]*?\\)?\\(nntp\\|news\\):[>\n\t ]*\\([^>\n\t ]*@[^>\n\t ]*\\)>"
7751 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7752 ((concat "\\b\\(nntp\\|news\\):\\("
7753 gnus-button-valid-localpart-regexp "@[a-z0-9.-]+[a-z]\\)")
7754 0 t gnus-button-handle-news 2)
7755 ("\\(\\b<\\(url:[>\n\t ]*\\)?\\(nntp\\|news\\):[>\n\t ]*\\(//\\)?\\([^>\n\t ]*\\)>\\)"
7756 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7757 ("\\b\\(nntp\\|news\\):\\(//\\)?\\([^'\">\n\t ]+\\)"
7758 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7759 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7760 ("\\bmid:\\(//\\)?\\([^'\">\n\t ]+@[^'\">\n\t /]+\\)"
7761 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7762 ("\\bin\\( +article\\| +message\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)"
7763 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7764 ("\\b\\(mid\\|message-id\\):? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)"
7765 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7766 ("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>"
7767 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7768 ;; RFC 2368 (The mailto URL scheme)
7769 ("\\bmailto:\\([-a-z.@_+0-9%=?&/]+\\)"
7770 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7771 ("\\bmailto:\\([^ \n\t]+\\)"
7772 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7773 ;; Info Konqueror style <info:/foo/bar baz>.
7774 ;; Must come before " Gnus home-grown style".
7775 ("\\binfo://?\\([^'\">\n\t]+\\)"
7776 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7777 ;; Info, Gnus home-grown style (deprecated) <info://foo/bar+baz>
7778 ("\\binfo://\\([^'\">\n\t ]+\\)"
7779 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7780 ;; Info GNOME style <info:foo#bar_baz>
7781 ("\\binfo:\\([^('\n\t\r \"><][^'\n\t\r \"><]*\\)"
7782 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7783 ;; Info KDE style <info:(foo)bar baz>
7784 ("<\\(info:\\(([^)]+)[^>\n\r]*\\)\\)>"
7785 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7786 ("\\((Info-goto-node\\|(info\\)[ \t\n]*\\(\"[^\"]*\"\\))" 0
7787 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7788 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+i[ \t\n]+d?[ \t\n]?m[ \t\n]+[^ ]+ ?[^ ]+[ \t\n]+RET\\([ \t\n]+i[ \t\n]+[^ ]+ ?[^ ]+[ \t\n]+RET\\([ \t\n,]*\\)\\)?"
7789 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7790 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7792 ("M-x[ \t\n]\\(customize-[^ ]+\\)[ \t\n]RET[ \t\n]\\([^ ]+\\)[ \t\n]RET\\>" 0
7793 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7794 ;; Emacs help commands
7795 ("M-x[ \t\n]+apropos[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7796 ;; regexp doesn't match arguments containing ` '.
7797 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7798 ("M-x[ \t\n]+apropos-command[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7799 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7800 ("M-x[ \t\n]+apropos-variable[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7801 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7802 ("M-x[ \t\n]+apropos-documentation[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7803 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7804 ;; The following entries may lead to many false positives so don't enable
7805 ;; them by default (use a high button level).
7806 ("/\\([a-z][-a-z0-9]+\\.el\\)\\>[^.?]"
7807 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7808 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7809 ("`\\([a-z][-a-z0-9]+\\.el\\)'"
7810 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7811 ("`\\([a-z][a-z0-9]+-[a-z0-9]+-[-a-z0-9]*[a-z]\\|\\(gnus\\|message\\)-[-a-z]+\\)'"
7812 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7813 ("`\\([a-z][a-z0-9]+-[a-z]+\\)'"
7814 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7815 ("(setq[ \t\n]+\\([a-z][a-z0-9]+-[-a-z0-9]+\\)[ \t\n]+.+)"
7816 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7817 ("\\bM-x[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7818 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7819 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+f[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7820 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7821 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+v[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7822 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7823 ("`\\(\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+k[ \t\n]+\\([^']+\\)\\)'"
7824 ;; Unlike the other regexps we really have to require quoting
7825 ;; here to determine where it ends.
7826 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7827 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7828 ("<URL: *\\([^\n<>]*\\)>"
7829 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7830 ;; RFC 2396 (2.4.3., delims) ...
7831 ("\"URL: *\\([^\n\"]*\\)\""
7832 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7834 (gnus-button-url-regexp
7835 0 (>= gnus-button-browse-level 0) browse-url 0)
7837 ("\\b\\([a-z][a-z]+([1-9])\\)\\W"
7838 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7839 gnus-button-handle-man 1)
7840 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7841 ("\\b\\([a-z][-_.a-z0-9]+([1-9])\\)\\W"
7842 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7843 gnus-button-handle-man 1)
7844 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7845 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7846 ("\\b\\(\\(?:[a-z][-+_.:a-z0-9]+([1-9][X1a-z]*)\\)\\|\\b\\(?:X([1-9])\\)\\)\\W"
7847 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7848 ;; Recognizing patches to .el files. This is somewhat obscure,
7849 ;; but considering the percentage of Gnus users who hack Emacs
7851 ("^--- \\([^ .]+\\.el\\).*\n.*\n@@ -?\\([0-9]+\\)" 1
7852 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7853 ("^\\*\\*\\* \\([^ .]+\\.el\\).*\n.*\n\\*+\n\\*\\*\\* \\([0-9]+\\)" 1
7854 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7855 ;; MID or mail: To avoid too many false positives we don't try to catch
7856 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7857 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7858 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7859 ;; so that non-ambiguous entries (see above) match first.
7860 (gnus-button-mid-or-mail-regexp
7861 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7862 "*Alist of regexps matching buttons in article bodies.
7864 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7865 REGEXP: is the string (case insensitive) matching text around the button (can
7866 also be Lisp expression evaluating to a string),
7867 BUTTON: is the number of the regexp grouping actually matching the button,
7868 FORM: is a Lisp expression which must eval to true for the button to
7870 CALLBACK: is the function to call when the user push this button, and each
7871 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7873 CALLBACK can also be a variable, in that case the value of that
7874 variable it the real callback function."
7875 :group 'gnus-article-buttons
7876 :type '(repeat (list (choice regexp variable sexp)
7877 (integer :tag "Button")
7879 (function :tag "Callback")
7882 (integer :tag "Regexp group")))))
7883 (put 'gnus-button-alist 'risky-local-variable t)
7885 (defcustom gnus-header-button-alist
7886 '(("^\\(References\\|Message-I[Dd]\\|^In-Reply-To\\):" "<[^<>]+>"
7887 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7888 ("^\\(From\\|Reply-To\\):" ": *\\(.+\\)$"
7889 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7890 ("^\\(Cc\\|To\\):" "[^ \t\n<>,()\"]+@[^ \t\n<>,()\"]+"
7891 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7892 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7893 0 (>= gnus-button-browse-level 0) browse-url 0)
7894 ("^Subject:" gnus-button-url-regexp
7895 0 (>= gnus-button-browse-level 0) browse-url 0)
7896 ("^[^:]+:" gnus-button-url-regexp
7897 0 (>= gnus-button-browse-level 0) browse-url 0)
7898 ("^OpenPGP:.*url=" gnus-button-url-regexp
7899 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7900 ("^[^:]+:" "\\bmailto:\\([-a-z.@_+0-9%=?&/]+\\)"
7901 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7902 ("^[^:]+:" "\\(<\\(url: \\)?\\(nntp\\|news\\):\\([^>\n ]*\\)>\\)"
7903 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7904 "*Alist of headers and regexps to match buttons in article heads.
7906 This alist is very similar to `gnus-button-alist', except that each
7907 alist has an additional HEADER element first in each entry:
7909 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7911 HEADER is a regexp to match a header. For a fuller explanation, see
7912 `gnus-button-alist'."
7913 :group 'gnus-article-buttons
7914 :group 'gnus-article-headers
7915 :type '(repeat (list (regexp :tag "Header")
7916 (choice regexp variable)
7917 (integer :tag "Button")
7919 (function :tag "Callback")
7922 (integer :tag "Regexp group")))))
7923 (put 'gnus-header-button-alist 'risky-local-variable t)
7927 (defun gnus-article-push-button (event)
7928 "Check text under the mouse pointer for a callback function.
7929 If the text under the mouse pointer has a `gnus-callback' property,
7930 call it with the value of the `gnus-data' text property."
7932 (set-buffer (window-buffer (posn-window (event-start event))))
7933 (let* ((pos (posn-point (event-start event)))
7934 (data (get-text-property pos 'gnus-data))
7935 (fun (get-text-property pos 'gnus-callback)))
7938 (funcall fun data))))
7940 (defun gnus-article-press-button ()
7941 "Check text at point for a callback function.
7942 If the text at point has a `gnus-callback' property,
7943 call it with the value of the `gnus-data' text property."
7945 (let ((data (get-text-property (point) 'gnus-data))
7946 (fun (get-text-property (point) 'gnus-callback)))
7948 (funcall fun data))))
7950 (defun gnus-article-highlight (&optional force)
7951 "Highlight current article.
7952 This function calls `gnus-article-highlight-headers',
7953 `gnus-article-highlight-citation',
7954 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7955 do the highlighting. See the documentation for those functions."
7956 (interactive (list 'force))
7957 (gnus-article-highlight-headers)
7958 (gnus-article-highlight-citation force)
7959 (gnus-article-highlight-signature)
7960 (gnus-article-add-buttons)
7961 (gnus-article-add-buttons-to-head))
7963 (defun gnus-article-highlight-some (&optional _force)
7964 "Highlight current article.
7965 This function calls `gnus-article-highlight-headers',
7966 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7967 do the highlighting. See the documentation for those functions."
7968 (interactive (list 'force))
7969 (gnus-article-highlight-headers)
7970 (gnus-article-highlight-signature)
7971 (gnus-article-add-buttons))
7973 (defun gnus-article-highlight-headers ()
7974 "Highlight article headers as specified by `gnus-header-face-alist'."
7976 (gnus-with-article-headers
7977 (let (regexp header-face field-face from hpoints fpoints)
7978 (dolist (entry gnus-header-face-alist)
7979 (goto-char (point-min))
7980 (setq regexp (concat "^\\("
7981 (if (string-equal "" (nth 0 entry))
7985 header-face (nth 1 entry)
7986 field-face (nth 2 entry))
7987 (while (and (re-search-forward regexp nil t)
7991 (unless (search-forward ":" nil t)
7993 (when (and header-face
7994 (not (memq (point) hpoints)))
7995 (push (point) hpoints)
7996 (gnus-put-text-property from (point) 'face header-face))
7997 (when (and field-face
7998 (not (memq (setq from (point)) fpoints)))
8000 (if (re-search-forward "^[^ \t]" nil t)
8002 (goto-char (point-max)))
8003 (gnus-put-text-property from (point) 'face field-face)))))))
8005 (defun gnus-article-highlight-signature ()
8006 "Highlight the signature in an article.
8007 It does this by highlighting everything after
8008 `gnus-signature-separator' using the face `gnus-signature'."
8010 (gnus-with-article-buffer
8011 (let ((inhibit-point-motion-hooks t))
8013 (when (and gnus-signature-face
8014 (gnus-article-narrow-to-signature))
8015 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max) nil t)
8016 'face gnus-signature-face)
8018 (gnus-article-search-signature)
8019 (let ((start (match-beginning 0))
8020 (end (set-marker (make-marker) (1+ (match-end 0)))))
8021 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
8024 (defun gnus-button-in-region-p (b e prop)
8025 "Say whether PROP exists in the region."
8026 (text-property-not-all b e prop nil))
8028 (defun gnus-article-add-buttons ()
8029 "Find external references in the article and make buttons of them.
8030 \"External references\" are things like Message-IDs and URLs, as
8031 specified by `gnus-button-alist'."
8033 (gnus-with-article-buffer
8034 (let ((inhibit-point-motion-hooks t)
8035 (case-fold-search t)
8036 (alist gnus-button-alist)
8038 ;; We skip the headers.
8041 (while (setq entry (pop alist))
8042 (setq regexp (eval (car entry)))
8044 (while (re-search-forward regexp nil t)
8045 (let ((start (match-beginning (nth 1 entry)))
8046 (end (match-end (nth 1 entry)))
8047 (from (match-beginning 0)))
8048 (when (and (eval (nth 2 entry))
8049 (not (gnus-button-in-region-p
8050 start end 'gnus-callback)))
8051 ;; That optional form returned non-nil, so we add the
8053 (setq from (set-marker (make-marker) from))
8054 (unless (and (eq (car entry) 'gnus-button-url-regexp)
8055 (gnus-article-extend-url-button from start end))
8056 (gnus-article-add-button start end
8057 'gnus-button-push (list from entry))
8058 (gnus-put-text-property
8060 'gnus-string (buffer-substring-no-properties
8063 (defun gnus-article-extend-url-button (beg start end)
8064 "Extend url button if url is folded into two or more lines.
8065 Return non-nil if button is extended. BEG is a marker that points to
8066 the beginning position of a text containing url. START and END are
8067 the endpoints of a url button before it is extended. The concatenated
8068 url is put as the `gnus-button-url' overlay property on the button."
8069 (let ((opoint (point))
8070 (points (list start end))
8075 (not (looking-at "[\t ]*[\">]")))
8079 "\\(?:\"\\|\\(<\\)\\)[\t ]*\\(?:url[\t ]*:[\t ]*\\)?\\'"
8080 (buffer-substring (point-at-bol) start)))
8082 (setq url (list (buffer-substring start end))
8083 delim (if (match-beginning 1) ">" "\""))
8085 (setq regexp (concat
8086 (when (and (looking-at
8087 message-cite-prefix-regexp)
8088 (< (match-end 0) start))
8089 (regexp-quote (match-string 0)))
8091 \[\t ]*\\(?:\\([^\t\n \">]+\\)[\t ]*$\\|\\([^\t\n \">]*\\)[\t ]*"
8095 (and (looking-at regexp)
8098 (push (or (match-string 2)
8101 (push (setq end (or (match-end 2)
8104 (push (or (match-beginning 2)
8105 (match-beginning 1))
8107 (match-beginning 2)))
8108 (let (gnus-article-mouse-face widget-mouse-face)
8110 (gnus-article-add-button (pop points) (pop points)
8112 (list beg (assq 'gnus-button-url-regexp
8113 gnus-button-alist)))))
8114 (let ((overlay (gnus-make-overlay start end)))
8115 (gnus-overlay-put overlay 'evaporate t)
8116 (gnus-overlay-put overlay 'gnus-button-url
8117 (list (mapconcat 'identity (nreverse url) "")))
8118 (when gnus-article-mouse-face
8119 (gnus-overlay-put overlay 'mouse-face gnus-article-mouse-face)))
8121 (goto-char opoint))))
8123 ;; Add buttons to the head of an article.
8124 (defun gnus-article-add-buttons-to-head ()
8125 "Add buttons to the head of the article."
8127 (gnus-with-article-headers
8129 (dolist (entry gnus-header-button-alist)
8130 ;; Each alist entry.
8131 (goto-char (point-min))
8132 (while (re-search-forward (car entry) nil t)
8133 ;; Each header matching the entry.
8134 (setq beg (match-beginning 0))
8135 (setq end (or (and (re-search-forward "^[^ \t]" nil t)
8136 (match-beginning 0))
8139 (while (re-search-forward (eval (nth 1 entry)) end t)
8140 ;; Each match within a header.
8141 (let* ((entry (cdr entry))
8142 (start (match-beginning (nth 1 entry)))
8143 (end (match-end (nth 1 entry)))
8144 (form (nth 2 entry)))
8145 (goto-char (match-end 0))
8147 (gnus-article-add-button
8148 start end (nth 3 entry)
8149 (buffer-substring (match-beginning (nth 4 entry))
8150 (match-end (nth 4 entry)))))))
8151 (goto-char end))))))
8153 ;;; External functions:
8155 (defun gnus-article-add-button (from to fun &optional data text)
8156 "Create a button between FROM and TO with callback FUN and data DATA."
8157 (when gnus-article-button-face
8158 (gnus-overlay-put (gnus-make-overlay from to nil t)
8159 'face gnus-article-button-face))
8160 (gnus-add-text-properties
8162 (nconc (and gnus-article-mouse-face
8163 (list gnus-mouse-face-prop gnus-article-mouse-face))
8164 (list 'gnus-callback fun)
8165 (and data (list 'gnus-data data))))
8166 (widget-convert-button 'link from to :action 'gnus-widget-press-button
8167 :help-echo (or text "Follow the link")
8168 :keymap gnus-url-button-map
8169 :button-keymap gnus-widget-button-keymap))
8171 (defun gnus-article-copy-string ()
8172 "Copy the string in the button to the kill ring."
8174 (gnus-article-check-buffer)
8175 (let ((data (get-text-property (point) 'gnus-string)))
8179 (copy-region-as-kill (point-min) (point-max))
8180 (message "Copied %s" data)))))
8182 ;;; Internal functions:
8184 (defun gnus-article-set-globals ()
8185 (with-current-buffer gnus-summary-buffer
8186 (gnus-set-global-variables)))
8188 (defun gnus-signature-toggle (end)
8189 (gnus-with-article-buffer
8190 (let ((inhibit-point-motion-hooks t))
8191 (if (text-property-any end (point-max) 'article-type 'signature)
8193 (gnus-delete-wash-type 'signature)
8194 (gnus-remove-text-properties-when
8195 'article-type 'signature end (point-max)
8196 (cons 'article-type (cons 'signature
8197 gnus-hidden-properties))))
8198 (gnus-add-wash-type 'signature)
8199 (gnus-add-text-properties-when
8200 'article-type nil end (point-max)
8201 (cons 'article-type (cons 'signature
8202 gnus-hidden-properties)))))
8203 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
8204 (gnus-set-mode-line 'article))))
8206 (defun gnus-button-push (marker-and-entry)
8207 ;; Push button starting at MARKER.
8209 (let* ((marker (car marker-and-entry))
8210 (entry (cadr marker-and-entry))
8211 (regexp (car entry))
8212 (inhibit-point-motion-hooks t))
8214 ;; This is obviously true, or something bad is happening :)
8215 ;; But we need it to have the match-data
8216 (when (looking-at (or (if (symbolp regexp)
8217 (symbol-value regexp)
8219 (let ((fun (nth 3 entry))
8220 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
8221 (get-char-property marker 'gnus-button-url))
8222 (mapcar (lambda (group)
8223 (let ((string (match-string group)))
8224 (set-text-properties
8225 0 (length string) nil string)
8227 (nthcdr 4 entry)))))
8233 (fboundp (symbol-value fun)))
8234 (apply (symbol-value fun) args))
8236 (gnus-message 1 "You must define `%S' to use this button"
8237 (cons fun args)))))))))
8239 (defun gnus-parse-news-url (url)
8240 (let (scheme server port group message-id articles)
8243 (goto-char (point-min))
8244 (when (looking-at "\\([A-Za-z]+\\):")
8245 (setq scheme (match-string 1))
8246 (goto-char (match-end 0)))
8247 (when (looking-at "//\\([^:/]+\\)\\(:?\\)\\([0-9]+\\)?/")
8248 (setq server (match-string 1))
8249 (setq port (if (stringp (match-string 3))
8250 (string-to-number (match-string 3))
8252 (goto-char (match-end 0)))
8255 ((looking-at "\\(.*@.*\\)")
8256 (setq message-id (match-string 1)))
8257 ((looking-at "\\([^/]+\\)/\\([-0-9]+\\)")
8258 (setq group (match-string 1)
8259 articles (split-string (match-string 2) "-")))
8260 ((looking-at "\\([^/]+\\)/?")
8261 (setq group (match-string 1)))
8263 (error "Unknown news URL syntax"))))
8264 (list scheme server port group message-id articles)))
8266 (defvar nntp-port-number)
8268 (defun gnus-button-handle-news (url)
8270 (destructuring-bind (_scheme server port group message-id _articles)
8271 (gnus-parse-news-url url)
8274 (with-current-buffer gnus-summary-buffer
8276 (let ((gnus-refer-article-method
8277 (nconc (list (list 'nntp server))
8278 gnus-refer-article-method))
8279 (nntp-port-number (or port "nntp")))
8280 (gnus-message 7 "Fetching %s with %s"
8281 message-id gnus-refer-article-method)
8282 (gnus-summary-refer-article message-id))
8283 (gnus-summary-refer-article message-id))))
8285 (gnus-button-fetch-group url)))))
8287 (defun gnus-button-patch (library line)
8288 "Visit an Emacs Lisp library LIBRARY on line LINE."
8290 (let ((file (locate-library (file-name-nondirectory library))))
8292 (error "Couldn't find library %s" library))
8294 (goto-char (point-min))
8295 (forward-line (1- (string-to-number line)))))
8297 (defun gnus-button-handle-man (url)
8299 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8300 (when (eq gnus-button-man-handler 'woman)
8301 (setq url (gnus-replace-in-string url "([1-9][X1a-z]*).*\\'" "")))
8302 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8303 (funcall gnus-button-man-handler url))
8305 (defun gnus-button-handle-info-url (url)
8306 "Fetch an info URL."
8307 (setq url (mm-subst-char-in-string ?+ ?\ url))
8309 ((string-match "^\\([^:/]+\\)?/\\(.*\\)" url)
8310 (gnus-info-find-node
8311 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
8313 ")" (gnus-url-unhex-string (match-string 2 url)))))
8314 ((string-match "([^)\"]+)[^\"]+" url)
8316 (gnus-replace-in-string
8317 (gnus-replace-in-string url "[\n\t ]+" " ") "\"" ""))
8318 (gnus-info-find-node url))
8319 (t (error "Can't parse %s" url))))
8321 (defun gnus-button-handle-info-url-gnome (url)
8322 "Fetch GNOME style info URL."
8323 (setq url (mm-subst-char-in-string ?_ ?\ url))
8324 (if (string-match "\\([^#]+\\)#?\\(.*\\)" url)
8325 (gnus-info-find-node
8327 (gnus-url-unhex-string
8328 (match-string 1 url))
8330 (or (gnus-url-unhex-string
8331 (match-string 2 url))
8333 (error "Can't parse %s" url)))
8335 (defun gnus-button-handle-info-url-kde (url)
8336 "Fetch KDE style info URL."
8337 (gnus-info-find-node (gnus-url-unhex-string url)))
8339 ;; (info) will autoload info.el
8340 (declare-function Info-menu "info" (menu-item &optional fork))
8341 (declare-function Info-index-next "info" (num))
8343 (defun gnus-button-handle-info-keystrokes (url)
8344 "Call `info' when pushing the corresponding URL button."
8345 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
8346 (let (node indx comma)
8348 (concat "\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+i[ \t\n]+d?[ \t\n]?m[ \t\n]+"
8349 "\\([^ ]+ ?[^ ]+\\)[ \t\n]+RET"
8350 "\\([ \t\n]+i[ \t\n]+[^ ]+ ?[^ ]+[ \t\n]+RET\\>"
8351 "\\(?:[ \t\n,]*\\)\\)?")
8353 (setq node (match-string 2 url)
8354 indx (match-string 3 url))
8355 (error "Can't parse %s" url))
8359 (when (> (length indx) 0)
8360 (string-match (concat "[ \t\n]+i[ \t\n]+\\([^ ]+ ?[^ ]+\\)[ \t\n]+RET\\>"
8363 (setq comma (match-string 2 indx))
8364 (setq indx (match-string 1 indx))
8367 (dotimes (i (with-temp-buffer
8369 ;; Note: the XEmacs version of `how-many' takes
8370 ;; no optional argument.
8371 (goto-char (point-min))
8373 (Info-index-next 1)))
8376 (autoload 'pgg-snarf-keys-region "pgg")
8377 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
8378 (declare-function pgg-display-output-buffer "pgg" (start end status))
8380 (defun gnus-button-openpgp (url)
8381 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
8383 (mm-url-insert-file-contents-external url)
8384 (pgg-snarf-keys-region (point-min) (point-max))
8385 (pgg-display-output-buffer nil nil nil)))
8387 (defun gnus-button-message-id (message-id)
8389 (with-current-buffer gnus-summary-buffer
8390 (gnus-summary-refer-article message-id)))
8392 (defun gnus-button-fetch-group (address &rest _ignore)
8393 "Fetch GROUP specified by ADDRESS."
8394 (when (string-match "\\`\\(nntp\\|news\\):\\(//\\)?\\(.*\\)\\'"
8396 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
8397 ;; for nntp:// and news://
8398 (setq address (match-string 3 address)))
8399 (if (not (string-match "[:/]" address))
8400 ;; This is just a simple group url.
8401 (gnus-group-read-ephemeral-group address gnus-select-method)
8404 "^\\([^:/]+\\)\\(:\\([^/]+\\)\\)?/\\([^/]+\\)\\(/\\([0-9]+\\)\\)?"
8406 (error "Can't parse %s" address)
8407 (gnus-group-read-ephemeral-group
8408 (match-string 4 address)
8409 `(nntp ,(match-string 1 address)
8410 (nntp-address ,(match-string 1 address))
8411 (nntp-port-number ,(if (match-end 3)
8412 (match-string 3 address)
8415 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
8417 (defun gnus-url-parse-query-string (query &optional downcase)
8418 (let (retval pairs cur key val)
8419 (setq pairs (split-string query "&"))
8421 (setq cur (car pairs)
8423 (if (not (string-match "=" cur))
8425 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
8426 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
8428 (setq key (downcase key)))
8429 (setq cur (assoc key retval))
8431 (setcdr cur (cons val (cdr cur)))
8432 (setq retval (cons (list key val) retval)))))
8435 (defun gnus-url-mailto (url)
8436 ;; Send mail to someone
8437 (setq url (replace-regexp-in-string "\n" " " url))
8438 (when (string-match "mailto:/*\\(.*\\)" url)
8439 (setq url (substring url (match-beginning 1) nil)))
8440 (let* ((args (gnus-url-parse-query-string
8441 (if (string-match "^\\?" url)
8443 (if (string-match "^\\([^?]+\\)\\?\\(.*\\)" url)
8444 (concat "to=" (match-string 1 url) "&"
8445 (match-string 2 url))
8446 (concat "to=" url)))))
8447 (subject (cdr-safe (assoc "subject" args)))
8451 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8454 (message-position-on-field (caar args)))
8455 (insert (gnus-replace-in-string
8456 (mapconcat 'identity (reverse (cdar args)) ", ")
8458 (setq args (cdr args)))
8461 (message-goto-subject))))
8463 (defun gnus-button-embedded-url (address)
8464 "Activate ADDRESS with `browse-url'."
8465 (browse-url (gnus-strip-whitespace address)))
8467 ;;; Next/prev buttons in the article buffer.
8469 (defvar gnus-next-page-line-format "%{%(Next page...%)%}\n")
8470 (defvar gnus-prev-page-line-format "%{%(Previous page...%)%}\n")
8472 (defvar gnus-prev-page-map
8473 (let ((map (make-sparse-keymap)))
8474 (define-key map gnus-mouse-2 'gnus-button-prev-page)
8475 (define-key map "\r" 'gnus-button-prev-page)
8478 (defvar gnus-next-page-map
8479 (let ((map (make-sparse-keymap)))
8480 (define-key map gnus-mouse-2 'gnus-button-next-page)
8481 (define-key map "\r" 'gnus-button-next-page)
8484 (defun gnus-insert-prev-page-button ()
8486 (inhibit-read-only t))
8488 gnus-prev-page-line-format nil
8489 `(keymap ,gnus-prev-page-map
8491 gnus-callback gnus-article-button-prev-page
8492 article-type annotation))
8494 ;; Exclude a newline.
8497 (when gnus-article-button-face
8498 (gnus-overlay-put (gnus-make-overlay b e nil t)
8499 'face gnus-article-button-face))
8500 (widget-convert-button
8502 :action 'gnus-button-prev-page
8503 :button-keymap gnus-prev-page-map)))
8505 (defun gnus-button-next-page (&optional _args _more-args)
8506 "Go to the next page."
8508 (let ((win (selected-window)))
8509 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8510 (gnus-article-next-page)
8511 (select-window win)))
8513 (defun gnus-button-prev-page (&optional _args _more-args)
8514 "Go to the prev page."
8516 (let ((win (selected-window)))
8517 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8518 (gnus-article-prev-page)
8519 (select-window win)))
8521 (defun gnus-insert-next-page-button ()
8523 (inhibit-read-only t))
8524 (gnus-eval-format gnus-next-page-line-format nil
8525 `(keymap ,gnus-next-page-map
8527 gnus-callback gnus-article-button-next-page
8528 article-type annotation))
8530 ;; Exclude a newline.
8533 (when gnus-article-button-face
8534 (gnus-overlay-put (gnus-make-overlay b e nil t)
8535 'face gnus-article-button-face))
8536 (widget-convert-button
8538 :action 'gnus-button-next-page
8539 :button-keymap gnus-next-page-map)))
8541 (defun gnus-article-button-next-page (_arg)
8542 "Go to the next page."
8544 (let ((win (selected-window)))
8545 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8546 (gnus-article-next-page)
8547 (select-window win)))
8549 (defun gnus-article-button-prev-page (_arg)
8550 "Go to the prev page."
8552 (let ((win (selected-window)))
8553 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8554 (gnus-article-prev-page)
8555 (select-window win)))
8557 (defvar gnus-decode-header-methods
8558 '(mail-decode-encoded-word-region)
8559 "List of methods used to decode headers.
8561 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8562 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8563 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8564 whose names match REGEXP.
8567 \((\"chinese\" . gnus-decode-encoded-word-region-by-guess)
8568 mail-decode-encoded-word-region
8569 (\"chinese\" . rfc1843-decode-region))
8572 (defvar gnus-decode-header-methods-cache nil)
8574 (defun gnus-multi-decode-header (start end)
8575 "Apply the functions from `gnus-encoded-word-methods' that match."
8576 (unless (and gnus-decode-header-methods-cache
8577 (eq gnus-newsgroup-name
8578 (car gnus-decode-header-methods-cache)))
8579 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8580 (dolist (x gnus-decode-header-methods)
8582 (nconc gnus-decode-header-methods-cache (list x))
8583 (if (and gnus-newsgroup-name
8584 (string-match (car x) gnus-newsgroup-name))
8585 (nconc gnus-decode-header-methods-cache
8587 (let ((xlist gnus-decode-header-methods-cache))
8590 (narrow-to-region start end)
8592 (funcall (pop xlist) (point-min) (point-max))))))
8595 ;;; Treatment top-level handling.
8598 (defvar gnus-inhibit-article-treatments nil)
8600 ;; Dynamic variables.
8601 (defvar part-number) ;FIXME: Lacks a "gnus-" prefix.
8602 (defvar total-parts) ;FIXME: Lacks a "gnus-" prefix.
8603 (defvar gnus-treat-type)
8604 (defvar gnus-treat-condition)
8605 (defvar gnus-treat-length)
8607 (defun gnus-treat-article (condition
8608 &optional part-num total type)
8609 (let ((gnus-treat-condition condition)
8610 (part-number part-num)
8612 (gnus-treat-type type)
8613 (gnus-treat-length (- (point-max) (point-min)))
8614 (alist gnus-treatment-function-alist)
8615 (article-goto-body-goes-to-point-min-p t)
8619 (let ((list gnus-article-treat-types))
8621 (when (string-match (pop list) type)
8622 (throw 'found t)))))))
8623 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8625 (gnus-run-hooks 'gnus-part-display-hook)
8626 (dolist (elem alist)
8629 (when (gnus-buffer-live-p gnus-summary-buffer)
8630 (set-buffer gnus-summary-buffer))
8631 (symbol-value (car elem))))
8632 (when (and (or (consp val)
8634 (or (not gnus-inhibit-article-treatments)
8635 (eq gnus-treat-condition 'head))
8636 (gnus-treat-predicate val)
8637 (or (not (get (car elem) 'highlight))
8640 (funcall (cadr elem)))))))
8642 (defun gnus-treat-predicate (val)
8646 (gnus-treat-condition
8647 (eq gnus-treat-condition val))
8649 (stringp (car val)))
8650 (apply 'gnus-or (mapcar `(lambda (s)
8651 (string-match s ,(or gnus-newsgroup-name "")))
8654 (let ((pred (pop val)))
8657 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8659 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8661 (not (gnus-treat-predicate (car val))))
8663 (equal (car val) gnus-treat-type))
8667 (error "%S is not a valid predicate" pred)))))
8675 (eq part-number total-parts))
8677 (< gnus-treat-length val))
8679 (error "%S is not a valid value" val))))
8681 (defun gnus-article-encrypt-body (protocol &optional n)
8682 "Encrypt the article body."
8685 (or gnus-article-encrypt-protocol
8686 (gnus-completing-read "Encrypt protocol"
8687 (mapcar 'car gnus-article-encrypt-protocol-alist)
8689 current-prefix-arg))
8690 ;; User might hit `K E' instead of `K e', so prompt once.
8691 (when (and gnus-article-encrypt-protocol
8693 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8694 (error "Encrypt aborted")))
8695 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8697 (error "Can't find the encrypt protocol %s" protocol))
8698 (if (member gnus-newsgroup-name '("nndraft:delayed"
8701 (error "Can't encrypt the article in group %s"
8702 gnus-newsgroup-name))
8703 (gnus-summary-iterate n
8704 (with-current-buffer gnus-summary-buffer
8705 (let ((mail-parse-charset gnus-newsgroup-charset)
8706 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8707 (summary-buffer gnus-summary-buffer)
8709 (gnus-set-global-variables)
8710 (when (gnus-group-read-only-p)
8711 (error "The current newsgroup does not support article encrypt"))
8712 (gnus-summary-show-article t)
8714 (or (mail-header-references gnus-current-headers) ""))
8715 (set-buffer gnus-article-buffer)
8716 (let* ((inhibit-read-only t)
8718 (mapcar (lambda (field)
8719 (and (save-restriction
8720 (message-narrow-to-head)
8721 (goto-char (point-min))
8722 (search-forward field nil t))
8724 (message-narrow-to-field)
8726 (delete-region (point-min) (point-max))
8728 '("Content-Type:" "Content-Transfer-Encoding:"
8729 "Content-Disposition:"))))
8730 (message-narrow-to-head)
8731 (message-remove-header "MIME-Version")
8732 (goto-char (point-max))
8733 (setq point (point))
8734 (insert (apply 'concat headers))
8736 (narrow-to-region point (point-max))
8737 (let ((message-options message-options))
8738 (message-options-set 'message-sender user-mail-address)
8739 (message-options-set 'message-recipients user-mail-address)
8740 (message-options-set 'message-sign-encrypt 'not)
8742 (goto-char (point-min))
8743 (insert "MIME-Version: 1.0\n")
8745 (gnus-summary-edit-article-done
8746 references nil summary-buffer t))
8747 (when gnus-keep-backlog
8748 (gnus-backlog-remove-article
8749 (car gnus-article-current) (cdr gnus-article-current)))
8750 (gnus-flush-original-article-buffer)
8751 (when gnus-use-cache
8752 (gnus-cache-update-article
8753 (car gnus-article-current) (cdr gnus-article-current))))))))
8755 (defvar gnus-mime-security-button-line-format "%{%([[%t:%i]%D]%)%}\n"
8756 "The following specs can be used:
8757 %t The security MIME type
8760 %D Details if button is pressed")
8762 (defvar gnus-mime-security-button-end-line-format "%{%([[End of %t]%D]%)%}\n"
8763 "The following specs can be used:
8764 %t The security MIME type
8767 %D Details if button is pressed")
8769 (defvar gnus-mime-security-button-line-format-alist
8770 '((?t gnus-tmp-type ?s)
8771 (?i gnus-tmp-info ?s)
8772 (?d gnus-tmp-details ?s)
8773 (?D gnus-tmp-pressed-details ?s)))
8775 (defvar gnus-mime-security-button-commands
8776 '((gnus-article-press-button "\r" "Show Detail")
8780 (gnus-mime-security-save-part "o" "Save...")
8789 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8792 (defvar gnus-mime-security-button-map
8793 (let ((map (make-sparse-keymap)))
8794 (define-key map gnus-mouse-2 'gnus-article-push-button)
8795 (define-key map gnus-down-mouse-3 'gnus-mime-security-button-menu)
8796 (dolist (c gnus-mime-security-button-commands)
8797 (define-key map (cadr c) (car c)))
8801 gnus-mime-security-button-menu gnus-mime-security-button-map
8802 "Security button menu."
8806 (unless (eq (car c) 'undefined)
8807 (vector (caddr c) (car c) :active t)))
8808 gnus-mime-security-button-commands))))
8810 (defun gnus-mime-security-button-menu (event prefix)
8811 "Construct a context-sensitive menu of security commands."
8812 (interactive "e\nP")
8813 (save-window-excursion
8814 (let ((pos (event-start event)))
8815 (select-window (posn-window pos))
8816 (goto-char (posn-point pos))
8817 (gnus-article-check-buffer)
8818 (popup-menu gnus-mime-security-button-menu nil prefix))))
8820 (defvar gnus-mime-security-details-buffer nil)
8822 (defvar gnus-mime-security-button-pressed nil)
8824 (defvar gnus-mime-security-show-details-inline t
8825 "If non-nil, show details in the article buffer.")
8827 (defun gnus-mime-security-verify-or-decrypt (handle)
8828 (mm-remove-parts (cdr handle))
8829 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8830 point (inhibit-read-only t))
8832 (goto-char (car region)))
8833 (setq point (point))
8834 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8835 (let* ((mm-verify-option 'known)
8836 (mm-decrypt-option 'known)
8837 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8838 (unless (eq nparts (cdr handle))
8839 (mm-destroy-parts (cdr handle))
8840 (setcdr handle nparts))))
8841 (gnus-mime-display-security handle)
8843 (delete-region (point) (cdr region))
8844 (set-marker (car region) nil)
8845 (set-marker (cdr region) nil))
8848 (defun gnus-mime-security-show-details (handle)
8849 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8851 (gnus-message 5 "No details.")
8852 (if gnus-mime-security-show-details-inline
8853 (let ((gnus-mime-security-button-pressed
8854 (not (get-text-property (point) 'gnus-mime-details)))
8855 (gnus-mime-security-button-line-format
8856 (get-text-property (point) 'gnus-line-format))
8857 (inhibit-read-only t))
8859 (while (eq (get-text-property (point) 'gnus-line-format)
8860 gnus-mime-security-button-line-format)
8864 (narrow-to-region (point) (point))
8865 (gnus-insert-mime-security-button handle))
8866 (delete-region (point)
8867 (or (text-property-not-all
8870 gnus-mime-security-button-line-format)
8873 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8874 (with-current-buffer gnus-mime-security-details-buffer
8877 (setq gnus-mime-security-details-buffer
8878 (gnus-get-buffer-create "*MIME Security Details*")))
8879 (with-current-buffer gnus-mime-security-details-buffer
8881 (goto-char (point-min)))
8882 (pop-to-buffer gnus-mime-security-details-buffer)))))
8884 (defun gnus-mime-security-press-button (handle)
8886 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8887 (gnus-mime-security-show-details handle)
8888 (gnus-mime-security-verify-or-decrypt handle))))
8890 (defun gnus-insert-mime-security-button (handle &optional _displayed)
8891 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8894 (or (nth 2 (assoc protocol mm-verify-function-alist))
8895 (nth 2 (assoc protocol mm-decrypt-function-alist))
8897 (if (equal (car handle) "multipart/signed")
8898 " Signed" " Encrypted")
8901 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8904 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8905 gnus-tmp-pressed-details
8907 (setq gnus-tmp-details
8908 (if gnus-tmp-details
8909 (concat "\n" gnus-tmp-details)
8911 (setq gnus-tmp-pressed-details
8912 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8917 gnus-mime-security-button-line-format
8918 gnus-mime-security-button-line-format-alist
8919 `(keymap ,gnus-mime-security-button-map
8920 gnus-callback gnus-mime-security-press-button
8921 gnus-line-format ,gnus-mime-security-button-line-format
8922 gnus-mime-details ,gnus-mime-security-button-pressed
8923 article-type annotation
8926 ;; Exclude a newline.
8929 (when gnus-article-button-face
8930 (gnus-overlay-put (gnus-make-overlay b e nil t)
8931 'face gnus-article-button-face))
8932 (widget-convert-button
8935 :action 'gnus-widget-press-button
8936 :button-keymap gnus-mime-security-button-map
8939 ;; Needed to properly clear the message due to a bug in
8940 ;; wid-edit (XEmacs only).
8941 (when (boundp 'help-echo-owns-message)
8942 (setq help-echo-owns-message t))
8944 "%S: show detail; %S: more options"
8945 (aref gnus-mouse-2 0)
8946 (aref gnus-down-mouse-3 0))))))
8948 (defun gnus-mime-display-security (handle)
8950 (narrow-to-region (point) (point))
8951 (unless (gnus-unbuttonized-mime-type-p (car handle))
8952 (gnus-insert-mime-security-button handle))
8953 (gnus-mime-display-part (cadr handle))
8956 (unless (gnus-unbuttonized-mime-type-p (car handle))
8957 (let ((gnus-mime-security-button-line-format
8958 gnus-mime-security-button-end-line-format))
8959 (gnus-insert-mime-security-button handle)))
8960 (mm-set-handle-multipart-parameter
8961 handle 'gnus-region (cons (point-min-marker) (point-max-marker)))
8962 (goto-char (point-max))))
8964 (defun gnus-mime-security-run-function (function)
8965 "Run FUNCTION with the security part under point."
8966 (gnus-article-check-buffer)
8967 (let ((data (get-text-property (point) 'gnus-data))
8969 (when (and (stringp (car-safe data))
8970 (setq buffer (mm-handle-multipart-original-buffer data))
8971 (setq handle (cadr data)))
8972 (if (bufferp (mm-handle-buffer handle))
8974 (setq handle (cons buffer (copy-sequence (cdr handle))))
8975 (mm-handle-set-undisplayer handle nil))
8976 (setq handle (mm-make-handle
8978 (mm-handle-multipart-ctl-parameter handle 'protocol)
8979 nil nil nil nil nil nil)))
8980 (funcall function handle))))
8982 (defun gnus-mime-security-save-part ()
8983 "Save the security part under point."
8985 (gnus-mime-security-run-function 'mm-save-part))
8987 (defun gnus-mime-security-pipe-part ()
8988 "Pipe the security part under point to a process."
8990 (gnus-mime-security-run-function 'mm-pipe-part))
8996 (run-hooks 'gnus-art-load-hook)
8998 ;;; gnus-art.el ends here