1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996-2016 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)
46 (autoload 'gnus-msg-mail "gnus-msg" nil t)
47 (autoload 'gnus-button-mailto "gnus-msg")
48 (autoload 'gnus-button-reply "gnus-msg" nil t)
49 (autoload 'parse-time-string "parse-time" nil nil)
50 (autoload 'ansi-color-apply-on-region "ansi-color")
51 (autoload 'mm-url-insert-file-contents-external "mm-url")
52 (autoload 'mm-extern-cache-contents "mm-extern")
53 (autoload 'url-expand-file-name "url-expand")
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 ;; We use to have `intangible' here as well, but Emacs's command loop moves
259 ;; point out of invisible text anyway, so `intangible' is clearly not
260 ;; needed there. And XEmacs doesn't handle `intangible' anyway.
262 "Property list to use for hiding text."
264 :group 'gnus-article-hiding)
266 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
267 ;; frames in a session.
268 (defcustom gnus-article-x-face-command
269 (if (gnus-image-type-available-p 'pbm)
270 'gnus-display-x-face-in-from
272 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
273 ; uncompface; } | icontopbm | display -")
274 "*String or function to be executed to display an X-Face header.
275 If it is a string, the command will be executed in a sub-shell
276 asynchronously. The compressed face will be piped to this command."
277 :type `(choice string
278 (function-item gnus-display-x-face-in-from)
282 :group 'gnus-article-washing)
284 (defcustom gnus-article-x-face-too-ugly nil
285 "Regexp matching posters whose face shouldn't be shown automatically."
286 :type '(choice regexp (const nil))
287 :group 'gnus-article-washing)
289 (defcustom gnus-article-banner-alist nil
290 "Banner alist for stripping.
292 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
294 :type '(repeat (cons symbol regexp))
295 :group 'gnus-article-washing)
297 (gnus-define-group-parameter
300 "Alist of regexps (to match group names) and banner."
301 :variable-group gnus-article-washing
303 '(choice :tag "Banner"
305 (const :tag "Remove signature" signature)
306 (symbol :tag "Item in `gnus-article-banner-alist'" none)
308 (const :tag "None" nil))
310 "If non-nil, specify how to remove `banners' from articles.
312 Symbol `signature' means to remove signatures delimited by
313 `gnus-signature-separator'. Any other symbol is used to look up a
314 regular expression to match the banner in `gnus-article-banner-alist'.
315 A string is used as a regular expression to match the banner
318 (defcustom gnus-article-address-banner-alist nil
319 "Alist of mail addresses and banners.
320 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
321 to match a mail address in the From: header, BANNER is one of a symbol
322 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
323 If ADDRESS matches author's mail address, it will remove things like
324 advertisements. For example:
326 \((\"@yoo-hoo\\\\.co\\\\.jp\\\\\\='\" . \"\\n_+\\nDo You Yoo-hoo!\\\\?\\n.*\\n.*\\n\"))
330 (regexp :tag "Address")
331 (choice :tag "Banner" :value nil
332 (const :tag "Remove signature" signature)
333 (symbol :tag "Item in `gnus-article-banner-alist'" none)
335 (const :tag "None" nil))))
337 :group 'gnus-article-washing)
339 (defmacro gnus-emphasis-custom-with-format (&rest body)
341 \\(\\s-\\|^\\|\\=\\|[-\"]\\|\\s(\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\
342 \\(\\([-,.;:!?\"]\\|\\s)\\)+\\s-\\|[?!.]\\s-\\|\\s)\\|\\s-\\)"))
345 (defun gnus-emphasis-custom-value-to-external (value)
346 (gnus-emphasis-custom-with-format
347 (if (consp (car value))
348 (list (format format (car (car value)) (cdr (car value)))
350 (if (nth 1 value) 2 3)
354 (defun gnus-emphasis-custom-value-to-internal (value)
355 (gnus-emphasis-custom-with-format
356 (let ((regexp (concat "\\`"
357 (format (regexp-quote format)
358 "\\([^()]+\\)" "\\([^()]+\\)")
361 (if (string-match regexp (setq pattern (car value)))
362 (list (cons (match-string 1 pattern) (match-string 2 pattern))
367 (defcustom gnus-emphasis-alist
369 '(("\\*" "\\*" bold nil 2)
372 ("_/" "/_" underline-italic)
373 ("_\\*" "\\*_" underline-bold)
374 ("\\*/" "/\\*" bold-italic)
375 ("_\\*/" "/\\*_" underline-bold-italic))))
377 (gnus-emphasis-custom-with-format
378 (mapcar (lambda (spec)
379 (list (format format (car spec) (cadr spec))
382 (intern (format "gnus-emphasis-%s" (nth 2 spec)))))
384 '(;; I've never seen anyone use this strikethru convention whereas I've
385 ;; several times seen it triggered by normal text. --Stef
386 ;; Miles suggests that this form is sometimes used but for italics,
387 ;; so maybe we should map it to `italic'.
388 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
389 ;; 2 3 gnus-emphasis-strikethru)
390 ("\\(\\s-\\|^\\)\\(_\\(\\(\\w\\|_[^_]\\)+\\)_\\)\\(\\s-\\|[?!.,;]\\)"
391 2 3 gnus-emphasis-underline))))
392 "*Alist that says how to fontify certain phrases.
393 Each item looks like this:
395 (\"_\\\\(\\\\w+\\\\)_\" 0 1 \\='underline)
397 The first element is a regular expression to be matched. The second
398 is a number that says what regular expression grouping used to find
399 the entire emphasized word. The third is a number that says what
400 regexp grouping should be displayed and highlighted. The fourth
401 is the face used for highlighting."
405 :format "%[Customizing Style%]\n%v"
407 (group :tag "Default"
408 :value ("" 0 0 default)
411 (let ((value (widget-get
412 (cadr (widget-get (widget-get widget :parent)
415 (if (not (eq (nth 2 value) 'default))
419 (gnus-emphasis-custom-value-to-external value))))
420 (widget-group-value-create widget))
422 (integer :format "Match group: %v")
423 (integer :format "Emphasize group: %v")
426 :value (("_" . "_") nil default)
428 (regexp :format "Start regexp: %v")
429 (regexp :format "End regexp: %v"))
430 (boolean :format "Show start and end patterns: %[%v%]\n"
431 :on " On " :off " Off ")
433 :get (lambda (symbol)
434 (mapcar 'gnus-emphasis-custom-value-to-internal
435 (default-value symbol)))
436 :set (lambda (symbol value)
437 (set-default symbol (mapcar 'gnus-emphasis-custom-value-to-external
439 :group 'gnus-article-emphasis)
441 (defcustom gnus-emphasize-whitespace-regexp "^[ \t]+\\|[ \t]*\n"
442 "A regexp to describe whitespace which should not be emphasized.
443 Typical values are \"^[ \\t]+\\\\|[ \\t]*\\n\" and \"[ \\t]+\\\\|[ \\t]*\\n\".
444 The former avoids underlining of leading and trailing whitespace,
445 and the latter avoids underlining any whitespace at all."
447 :group 'gnus-article-emphasis
450 (defface gnus-emphasis-bold '((t (:bold t)))
451 "Face used for displaying strong emphasized text (*word*)."
452 :group 'gnus-article-emphasis)
454 (defface gnus-emphasis-italic '((t (:italic t)))
455 "Face used for displaying italic emphasized text (/word/)."
456 :group 'gnus-article-emphasis)
458 (defface gnus-emphasis-underline '((t (:underline t)))
459 "Face used for displaying underlined emphasized text (_word_)."
460 :group 'gnus-article-emphasis)
462 (defface gnus-emphasis-underline-bold '((t (:bold t :underline t)))
463 "Face used for displaying underlined bold emphasized text (_*word*_)."
464 :group 'gnus-article-emphasis)
466 (defface gnus-emphasis-underline-italic '((t (:italic t :underline t)))
467 "Face used for displaying underlined italic emphasized text (_/word/_)."
468 :group 'gnus-article-emphasis)
470 (defface gnus-emphasis-bold-italic '((t (:bold t :italic t)))
471 "Face used for displaying bold italic emphasized text (/*word*/)."
472 :group 'gnus-article-emphasis)
474 (defface gnus-emphasis-underline-bold-italic
475 '((t (:bold t :italic t :underline t)))
476 "Face used for displaying underlined bold italic emphasized text.
477 Example: (_/*word*/_)."
478 :group 'gnus-article-emphasis)
480 (defface gnus-emphasis-strikethru '((t (:strike-through t)))
481 "Face used for displaying strike-through text (-word-)."
482 :group 'gnus-article-emphasis)
484 (defface gnus-emphasis-highlight-words
485 '((t (:background "black" :foreground "yellow")))
486 "Face used for displaying highlighted words."
487 :group 'gnus-article-emphasis)
489 (defcustom gnus-article-time-format "%a, %d %b %Y %T %Z"
490 "Format for display of Date headers in article bodies.
491 See `format-time-string' for the possible values.
493 The variable can also be function, which should return a complete Date
494 header. The function is called with one argument, the time, which can
495 be fed to `format-time-string'."
496 :type '(choice string function)
497 :link '(custom-manual "(gnus)Article Date")
498 :group 'gnus-article-washing)
500 (defcustom gnus-save-all-headers t
501 "*If non-nil, don't remove any headers before saving.
502 This will be overridden by the `:headers' property that the symbol of
503 the saver function, which is specified by `gnus-default-article-saver',
505 :group 'gnus-article-saving
508 (defcustom gnus-prompt-before-saving 'always
509 "*This variable says how much prompting is to be done when saving articles.
510 If it is nil, no prompting will be done, and the articles will be
511 saved to the default files. If this variable is `always', each and
512 every article that is saved will be preceded by a prompt, even when
513 saving large batches of articles. If this variable is neither nil not
514 `always', there the user will be prompted once for a file name for
515 each invocation of the saving commands."
516 :group 'gnus-article-saving
517 :type '(choice (item always)
518 (item :tag "never" nil)
519 (sexp :tag "once" :format "%t\n" :value t)))
521 (defcustom gnus-article-show-cursor nil
522 "If non-nil, show the cursor in the Article buffer even when not selected."
527 (defcustom gnus-saved-headers gnus-visible-headers
528 "Headers to keep if `gnus-save-all-headers' is nil.
529 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
530 If that variable is nil, however, all headers that match this regexp
531 will be kept while the rest will be deleted before saving. This and
532 `gnus-save-all-headers' will be overridden by the `:headers' property
533 that the symbol of the saver function, which is specified by
534 `gnus-default-article-saver', might have."
535 :group 'gnus-article-saving
538 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
539 (defcustom gnus-default-article-saver 'gnus-summary-save-in-rmail
540 "A function to save articles in your favorite format.
541 The function will be called by way of the `gnus-summary-save-article'
542 command, and friends such as `gnus-summary-save-article-rmail'.
544 Gnus provides the following functions:
546 * gnus-summary-save-in-rmail (Rmail format)
547 * gnus-summary-save-in-mail (Unix mail format)
548 * gnus-summary-save-in-folder (MH folder)
549 * gnus-summary-save-in-file (article format)
550 * gnus-summary-save-body-in-file (article body)
551 * gnus-summary-save-in-vm (use VM's folder format)
552 * gnus-summary-write-to-file (article format -- overwrite)
553 * gnus-summary-write-body-to-file (article body -- overwrite)
554 * gnus-summary-save-in-pipe (article format)
556 The symbol of each function may have the following properties:
559 The value non-nil means save decoded articles. This is meaningful
560 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
561 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
562 `gnus-summary-save-in-pipe'.
565 The value specifies an alternative function which appends, not
566 overwrites, articles to a file. This implies that when saving many
567 articles at a time, `gnus-prompt-before-saving' is bound to t and all
568 articles are saved in a single file. This is meaningful only with
569 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
572 The value specifies the symbol of a variable of which the value
573 specifies headers to be saved. If it is omitted,
574 `gnus-save-all-headers' and `gnus-saved-headers' control what
575 headers should be saved."
576 :group 'gnus-article-saving
577 :type '(radio (function-item gnus-summary-save-in-rmail)
578 (function-item gnus-summary-save-in-mail)
579 (function-item gnus-summary-save-in-folder)
580 (function-item gnus-summary-save-in-file)
581 (function-item gnus-summary-save-body-in-file)
582 (function-item gnus-summary-save-in-vm)
583 (function-item gnus-summary-write-to-file)
584 (function-item gnus-summary-write-body-to-file)
585 (function-item gnus-summary-save-in-pipe)
588 (defcustom gnus-article-save-coding-system
589 (or (and (mm-coding-system-p 'utf-8) 'utf-8)
590 (and (mm-coding-system-p 'iso-2022-7bit) 'iso-2022-7bit)
591 (and (mm-coding-system-p 'emacs-mule) 'emacs-mule)
592 (and (mm-coding-system-p 'escape-quoted) 'escape-quoted))
593 "Coding system used to save decoded articles to a file.
595 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
596 which can safely encode any characters in text. This is used by the
599 * gnus-summary-save-article-file
600 * gnus-summary-save-article-body-file
601 * gnus-summary-write-article-file
602 * gnus-summary-write-article-body-file
604 and the functions to which you may set `gnus-default-article-saver':
606 * gnus-summary-save-in-file
607 * gnus-summary-save-body-in-file
608 * gnus-summary-write-to-file
609 * gnus-summary-write-body-to-file
611 Those commands and functions save just text displayed in the article
612 buffer to a file if the value of this variable is non-nil. Note that
613 buttonized MIME parts will be lost in a saved file in that case.
614 Otherwise, raw articles will be saved."
615 :group 'gnus-article-saving
617 :format "%{%t%}:\n %[Value Menu%] %v"
618 (const :tag "Save raw articles" nil)
621 (lambda (arg) (if (mm-coding-system-p (nth 3 arg)) arg))
622 '((const :tag "UTF-8" utf-8)
623 (const :tag "iso-2022-7bit" iso-2022-7bit)
624 (const :tag "Emacs internal" emacs-mule)
625 (const :tag "escape-quoted" escape-quoted))))
626 (symbol :tag "Coding system")))
628 (defcustom gnus-rmail-save-name 'gnus-plain-save-name
629 "A function generating a file name to save articles in Rmail format.
630 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
631 :group 'gnus-article-saving
634 (defcustom gnus-mail-save-name 'gnus-plain-save-name
635 "A function generating a file name to save articles in Unix mail format.
636 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
637 :group 'gnus-article-saving
640 (defcustom gnus-folder-save-name 'gnus-folder-save-name
641 "A function generating a file name to save articles in MH folder.
642 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
643 :group 'gnus-article-saving
646 (defcustom gnus-file-save-name 'gnus-numeric-save-name
647 "A function generating a file name to save articles in article format.
648 The function is called with NEWSGROUP, HEADERS, and optional
650 :group 'gnus-article-saving
653 (defcustom gnus-split-methods
654 '((gnus-article-archive-name)
655 (gnus-article-nndoc-name))
656 "*Variable used to suggest where articles are to be saved.
657 For instance, if you would like to save articles related to Gnus in
658 the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
659 you could set this variable to something like:
661 ((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
662 (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
664 This variable is an alist where the key is the match and the
665 value is a list of possible files to save in if the match is
668 If the match is a string, it is used as a regexp match on the
669 article. If the match is a symbol, that symbol will be funcalled
670 from the buffer of the article to be saved with the newsgroup as the
671 parameter. If it is a list, it will be evalled in the same buffer.
673 If this form or function returns a string, this string will be used as a
674 possible file name; and if it returns a non-nil list, that list will be
675 used as possible file names."
676 :group 'gnus-article-saving
677 :type '(repeat (choice (list :value (fun) function)
678 (cons :value ("" "") regexp (repeat string))
681 (defcustom gnus-page-delimiter "^\^L"
682 "*Regexp describing what to use as article page delimiters.
683 The default value is \"^\^L\", which is a form linefeed at the
684 beginning of a line."
686 :group 'gnus-article-various)
688 (defcustom gnus-article-mode-line-format "Gnus: %g %S%m"
689 "*The format specification for the article mode line.
690 See `gnus-summary-mode-line-format' for a closer description.
692 The following additional specs are available:
694 %w The article washing status.
695 %m The number of MIME parts in the article."
698 :group 'gnus-article-various)
700 (defcustom gnus-article-mode-hook nil
701 "*A hook for Gnus article mode."
703 :group 'gnus-article-various)
705 (defcustom gnus-article-menu-hook nil
706 "*Hook run after the creation of the article mode menu."
708 :group 'gnus-article-various)
710 (defcustom gnus-article-prepare-hook nil
711 "*A hook called after an article has been prepared in the article buffer."
713 :group 'gnus-article-various)
715 (defcustom gnus-copy-article-ignored-headers nil
716 "List of headers to be removed when copying an article.
717 Each element is a regular expression."
718 :version "23.1" ;; No Gnus
719 :type '(repeat regexp)
720 :group 'gnus-article-various)
722 (make-obsolete-variable 'gnus-article-hide-pgp-hook nil
723 "Gnus 5.10 (Emacs 22.1)")
726 '((t (:weight bold)))
727 "Face used for highlighting a button in the article buffer."
728 :group 'gnus-article-buttons)
730 (defcustom gnus-article-button-face 'gnus-button
731 "Face used for highlighting buttons in the article buffer.
733 An article button is a piece of text that you can activate by pressing
734 `RET' or `mouse-2' above it."
736 :group 'gnus-article-buttons)
738 (defcustom gnus-article-mouse-face 'highlight
739 "Face used for mouse highlighting in the article buffer.
741 Article buttons will be displayed in this face when the cursor is
744 :group 'gnus-article-buttons)
746 (defcustom gnus-signature-face 'gnus-signature
747 "Face used for highlighting a signature in the article buffer.
748 Obsolete; use the face `gnus-signature' for customizations instead."
750 :group 'gnus-article-highlight
751 :group 'gnus-article-signature)
753 (defface gnus-signature
756 "Face used for highlighting a signature in the article buffer."
757 :group 'gnus-article-highlight
758 :group 'gnus-article-signature)
759 ;; backward-compatibility alias
760 (put 'gnus-signature-face 'face-alias 'gnus-signature)
761 (put 'gnus-signature-face 'obsolete-face "22.1")
763 (defface gnus-header-from
766 (:foreground "PaleGreen1"))
769 (:foreground "red3"))
772 "Face used for displaying from headers."
773 :group 'gnus-article-headers
774 :group 'gnus-article-highlight)
775 ;; backward-compatibility alias
776 (put 'gnus-header-from-face 'face-alias 'gnus-header-from)
777 (put 'gnus-header-from-face 'obsolete-face "22.1")
779 (defface gnus-header-subject
782 (:foreground "SeaGreen1"))
785 (:foreground "red4"))
787 (:bold t :italic t)))
788 "Face used for displaying subject headers."
789 :group 'gnus-article-headers
790 :group 'gnus-article-highlight)
791 ;; backward-compatibility alias
792 (put 'gnus-header-subject-face 'face-alias 'gnus-header-subject)
793 (put 'gnus-header-subject-face 'obsolete-face "22.1")
795 (defface gnus-header-newsgroups
798 (:foreground "yellow" :italic t))
801 (:foreground "MidnightBlue" :italic t))
804 "Face used for displaying newsgroups headers.
805 In the default setup this face is only used for crossposted
807 :group 'gnus-article-headers
808 :group 'gnus-article-highlight)
809 ;; backward-compatibility alias
810 (put 'gnus-header-newsgroups-face 'face-alias 'gnus-header-newsgroups)
811 (put 'gnus-header-newsgroups-face 'obsolete-face "22.1")
813 (defface gnus-header-name
816 (:foreground "SpringGreen2"))
819 (:foreground "maroon"))
822 "Face used for displaying header names."
823 :group 'gnus-article-headers
824 :group 'gnus-article-highlight)
825 ;; backward-compatibility alias
826 (put 'gnus-header-name-face 'face-alias 'gnus-header-name)
827 (put 'gnus-header-name-face 'obsolete-face "22.1")
829 (defface gnus-header-content
832 (:foreground "SpringGreen1" :italic t))
835 (:foreground "indianred4" :italic t))
837 (:italic t))) "Face used for displaying header content."
838 :group 'gnus-article-headers
839 :group 'gnus-article-highlight)
840 ;; backward-compatibility alias
841 (put 'gnus-header-content-face 'face-alias 'gnus-header-content)
842 (put 'gnus-header-content-face 'obsolete-face "22.1")
844 (defcustom gnus-header-face-alist
845 '(("From" nil gnus-header-from)
846 ("Subject" nil gnus-header-subject)
847 ("Newsgroups:.*," nil gnus-header-newsgroups)
848 ("" gnus-header-name gnus-header-content))
849 "*Controls highlighting of article headers.
851 An alist of the form (HEADER NAME CONTENT).
853 HEADER is a regular expression which should match the name of a
854 header and NAME and CONTENT are either face names or nil.
856 The name of each header field will be displayed using the face
857 specified by the first element in the list where HEADER matches
858 the header name and NAME is non-nil. Similarly, the content will
859 be displayed by the first non-nil matching CONTENT face."
860 :group 'gnus-article-headers
861 :group 'gnus-article-highlight
862 :type '(repeat (list (regexp :tag "Header")
864 (item :tag "skip" nil)
865 (face :value default))
866 (choice :tag "Content"
867 (item :tag "skip" nil)
868 (face :value default)))))
870 (defcustom gnus-face-properties-alist '((pbm . (:face gnus-x-face))
872 "Alist of image types and properties applied to Face and X-Face images.
875 ;; Specify the altitude of Face images in the From header.
876 \(setq gnus-face-properties-alist
877 \\='((pbm . (:face gnus-x-face :ascent 80))
878 (png . (:ascent 80))))
880 ;; Show Face images as pressed buttons.
881 \(setq gnus-face-properties-alist
882 \\='((pbm . (:face gnus-x-face :relief -2))
883 (png . (:relief -2))))
885 See the manual for the valid properties for various image types.
886 Currently, `pbm' is used for X-Face images and `png' is used for Face
888 :version "23.1" ;; No Gnus
889 :group 'gnus-article-headers
890 :type '(repeat (cons :format "%v" (symbol :tag "Image type") plist)))
892 (defcustom gnus-article-decode-hook
893 '(article-decode-charset article-decode-encoded-words
894 article-decode-group-name article-decode-idna-rhs)
895 "*Hook run to decode charsets in articles."
896 :group 'gnus-article-headers
899 (defcustom gnus-display-mime-function 'gnus-display-mime
900 "Function to display MIME articles."
901 :group 'gnus-article-mime
904 (defvar gnus-decode-header-function 'mail-decode-encoded-word-region
905 "Function used to decode headers.")
907 (defvar gnus-decode-address-function 'mail-decode-encoded-address-region
908 "Function used to decode addresses.")
910 (defvar gnus-article-dumbquotes-map
930 "Table for MS-to-Latin1 translation.")
932 (defcustom gnus-ignored-mime-types nil
933 "List of MIME types that should be ignored by Gnus."
935 :group 'gnus-article-mime
936 :type '(repeat regexp))
938 (defcustom gnus-unbuttonized-mime-types '(".*/.*")
939 "List of MIME types that should not be given buttons when rendered inline.
940 See also `gnus-buttonized-mime-types' which may override this variable.
941 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
943 :group 'gnus-article-mime
944 :type '(repeat regexp))
946 (defcustom gnus-buttonized-mime-types nil
947 "List of MIME types that should be given buttons when rendered inline.
948 If set, this variable overrides `gnus-unbuttonized-mime-types'.
949 To see e.g. security buttons you could set this to
950 `(\"multipart/signed\")'. You could also add \"multipart/alternative\" to
951 this list to display radio buttons that allow you to choose one of two
952 media types those mails include. See also `mm-discouraged-alternatives'.
953 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
955 :group 'gnus-article-mime
956 :type '(repeat regexp))
958 (defcustom gnus-inhibit-mime-unbuttonizing nil
959 "If non-nil, all MIME parts get buttons.
960 When nil (the default value), then some MIME parts do not get buttons,
961 as described by the variables `gnus-buttonized-mime-types' and
962 `gnus-unbuttonized-mime-types'."
964 :group 'gnus-article-mime
967 (defcustom gnus-body-boundary-delimiter "_"
968 "String used to delimit header and body.
969 This variable is used by `gnus-article-treat-body-boundary' which can
970 be controlled by `gnus-treat-body-boundary'."
972 :group 'gnus-article-various
973 :type '(choice (item :tag "None" :value nil)
976 (defcustom gnus-picon-databases '("/usr/lib/picon" "/usr/local/faces"
978 "Defines the location of the faces database.
979 For information on obtaining this database of pretty pictures, please
980 see http://www.cs.indiana.edu/picons/ftp/index.html"
982 :type '(repeat directory)
983 :link '(url-link :tag "download"
984 "http://www.cs.indiana.edu/picons/ftp/index.html")
985 :link '(custom-manual "(gnus)Picons")
988 (defun gnus-picons-installed-p ()
989 "Say whether picons are installed on your machine."
990 (let ((installed nil))
991 (dolist (database gnus-picon-databases)
992 (when (file-exists-p database)
996 (defcustom gnus-article-mime-part-function nil
997 "Function called with a MIME handle as the argument.
998 This is meant for people who want to do something automatic based
999 on parts -- for instance, adding Vcard info to a database."
1000 :group 'gnus-article-mime
1001 :type '(choice (const nil)
1004 (defcustom gnus-mime-multipart-functions nil
1005 "An alist of MIME types to functions to display them."
1007 :group 'gnus-article-mime
1008 :type '(repeat (cons :format "%v" (string :tag "MIME type") function)))
1010 (defcustom gnus-article-date-headers '(combined-lapsed)
1011 "A list of Date header formats to display.
1012 Valid formats are `ut' (universal time), `local' (local time
1013 zone), `english' (readable English), `lapsed' (elapsed time),
1014 `combined-lapsed' (both the original date and the elapsed time),
1015 `original' (the original date header), `iso8601' (ISO8601
1016 format), and `user-defined' (a user-defined format defined by the
1017 `gnus-article-time-format' variable).
1019 You have as many date headers as you want in the article buffer.
1020 Some of these headers are updated automatically. See
1021 `gnus-article-update-date-headers' for details."
1023 :group 'gnus-article-headers
1025 (const :tag "Universal time (UT)" ut)
1026 (const :tag "Local time zone" local)
1027 (const :tag "Readable English" english)
1028 (const :tag "Elapsed time" lapsed)
1029 (const :tag "Original and elapsed time" combined-lapsed)
1030 (const :tag "Original date header" original)
1031 (const :tag "ISO8601 format" iso8601)
1032 (const :tag "User-defined" user-defined)))
1034 (defcustom gnus-article-update-date-headers nil
1035 "A number that says how often to update the date header (in seconds).
1036 If nil, don't update it at all."
1038 :group 'gnus-article-headers
1040 (item :tag "Don't update" :value nil)
1043 (defcustom gnus-article-mime-match-handle-function 'undisplayed-alternative
1044 "Function called with a MIME handle as the argument.
1045 This is meant for people who want to view first matched part.
1046 For `undisplayed-alternative' (default), the first undisplayed
1047 part or alternative part is used. For `undisplayed', the first
1048 undisplayed part is used. For a function, the first part which
1049 the function return t is used. For nil, the first part is
1052 :group 'gnus-article-mime
1054 (item :tag "first" :value nil)
1055 (item :tag "undisplayed" :value undisplayed)
1056 (item :tag "undisplayed or alternative"
1057 :value undisplayed-alternative)
1060 (defcustom gnus-mime-action-alist
1061 '(("save to file" . gnus-mime-save-part)
1062 ("save and strip" . gnus-mime-save-part-and-strip)
1063 ("replace with file" . gnus-mime-replace-part)
1064 ("delete part" . gnus-mime-delete-part)
1065 ("display as text" . gnus-mime-inline-part)
1066 ("view the part" . gnus-mime-view-part)
1067 ("pipe to command" . gnus-mime-pipe-part)
1068 ("toggle display" . gnus-article-press-button)
1069 ("toggle display" . gnus-article-view-part-as-charset)
1070 ("view as type" . gnus-mime-view-part-as-type)
1071 ("view internally" . gnus-mime-view-part-internally)
1072 ("view externally" . gnus-mime-view-part-externally))
1073 "An alist of actions that run on the MIME attachment."
1074 :group 'gnus-article-mime
1075 :type '(repeat (cons (string :tag "name")
1078 (defcustom gnus-auto-select-part 1
1079 "Advance to next MIME part when deleting or stripping parts.
1081 When 0, point will be placed on the same part as before. When
1082 positive (negative), move point forward (backwards) this many
1083 parts. When nil, redisplay article."
1084 :version "23.1" ;; No Gnus
1085 :group 'gnus-article-mime
1086 :type '(choice (const nil :tag "Redisplay article.")
1087 (const 1 :tag "Next part.")
1088 (const 0 :tag "Current part.")
1092 ;;; The treatment variables
1095 (defvar gnus-part-display-hook nil
1096 "Hook called on parts that are to receive treatment.")
1098 (defvar gnus-article-treat-custom
1099 '(choice (const :tag "Off" nil)
1101 (const :tag "Header" head)
1102 (const :tag "First" first)
1103 (const :tag "Last" last)
1104 (integer :tag "Less")
1105 (repeat :tag "Groups" regexp)
1106 (sexp :tag "Predicate")))
1108 (defvar gnus-article-treat-head-custom
1109 '(choice (const :tag "Off" nil)
1110 (const :tag "Header" head)))
1112 (defvar gnus-article-treat-types '("text/plain" "text/x-verbatim"
1113 "text/x-patch" "text/html")
1114 "Part types eligible for treatment.")
1116 (defvar gnus-inhibit-treatment nil
1117 "Whether to inhibit treatment.")
1119 (defcustom gnus-treat-highlight-signature '(or t (typep "text/x-vcard"))
1120 "Highlight the signature.
1121 Valid values are nil, t, `head', `first', `last', an integer or a
1122 predicate. See Info node `(gnus)Customizing Articles'."
1123 :group 'gnus-article-treat
1124 :link '(custom-manual "(gnus)Customizing Articles")
1125 :type gnus-article-treat-custom)
1126 (put 'gnus-treat-highlight-signature 'highlight t)
1128 (defcustom gnus-treat-buttonize '(and 100000 (typep "text/plain"))
1130 Valid values are nil, t, `head', `first', `last', an integer or a
1131 predicate. See Info node `(gnus)Customizing Articles'."
1132 :group 'gnus-article-treat
1133 :link '(custom-manual "(gnus)Customizing Articles")
1134 :type gnus-article-treat-custom)
1135 (put 'gnus-treat-buttonize 'highlight t)
1137 (defcustom gnus-treat-buttonize-head 'head
1138 "Add buttons to the head.
1139 Valid values are nil, t, `head', `first', `last', an integer or a
1140 predicate. See Info node `(gnus)Customizing Articles'."
1141 :group 'gnus-article-treat
1142 :link '(custom-manual "(gnus)Customizing Articles")
1143 :type gnus-article-treat-head-custom)
1144 (put 'gnus-treat-buttonize-head 'highlight t)
1146 (defcustom gnus-treat-date 'head
1147 "Display dates according to the `gnus-article-date-headers' variable.
1148 Valid values are nil, t, `head', `first', `last', an integer or a
1149 predicate. See Info node `(gnus)Customizing Articles'."
1151 :group 'gnus-article-treat
1152 :link '(custom-manual "(gnus)Customizing Articles")
1153 :type gnus-article-treat-head-custom)
1155 (defcustom gnus-treat-emphasize 50000
1157 Valid values are nil, t, `head', `first', `last', an integer or a
1158 predicate. See Info node `(gnus)Customizing Articles'."
1159 :group 'gnus-article-treat
1160 :link '(custom-manual "(gnus)Customizing Articles")
1161 :type gnus-article-treat-custom)
1162 (put 'gnus-treat-emphasize 'highlight t)
1164 (defcustom gnus-treat-strip-cr nil
1165 "Remove carriage returns.
1166 Valid values are nil, t, `head', `first', `last', an integer or a
1167 predicate. See Info node `(gnus)Customizing Articles'."
1169 :group 'gnus-article-treat
1170 :link '(custom-manual "(gnus)Customizing Articles")
1171 :type gnus-article-treat-custom)
1173 (defcustom gnus-treat-unsplit-urls nil
1174 "Remove newlines from within URLs.
1175 Valid values are nil, t, `head', `first', `last', an integer or a
1176 predicate. See Info node `(gnus)Customizing Articles'."
1178 :group 'gnus-article-treat
1179 :link '(custom-manual "(gnus)Customizing Articles")
1180 :type gnus-article-treat-custom)
1182 (defcustom gnus-treat-leading-whitespace nil
1183 "Remove leading whitespace in headers.
1184 Valid values are nil, t, `head', `first', `last', an integer or a
1185 predicate. See Info node `(gnus)Customizing Articles'."
1187 :group 'gnus-article-treat
1188 :link '(custom-manual "(gnus)Customizing Articles")
1189 :type gnus-article-treat-custom)
1191 (defcustom gnus-treat-hide-headers 'head
1193 Valid values are nil, t, `head', `first', `last', an integer or a
1194 predicate. See Info node `(gnus)Customizing Articles'."
1195 :group 'gnus-article-treat
1196 :link '(custom-manual "(gnus)Customizing Articles")
1197 :type gnus-article-treat-head-custom)
1199 (defcustom gnus-treat-hide-boring-headers nil
1200 "Hide boring headers.
1201 Valid values are nil, t, `head', `first', `last', an integer or a
1202 predicate. See Info node `(gnus)Customizing Articles'."
1203 :group 'gnus-article-treat
1204 :link '(custom-manual "(gnus)Customizing Articles")
1205 :type gnus-article-treat-head-custom)
1207 (defcustom gnus-treat-hide-signature nil
1208 "Hide the signature.
1209 Valid values are nil, t, `head', `first', `last', an integer or a
1210 predicate. See Info node `(gnus)Customizing Articles'."
1211 :group 'gnus-article-treat
1212 :link '(custom-manual "(gnus)Customizing Articles")
1213 :type gnus-article-treat-custom)
1215 (defcustom gnus-treat-fill-article nil
1217 Valid values are nil, t, `head', `first', `last', an integer or a
1218 predicate. See Info node `(gnus)Customizing Articles'."
1219 :group 'gnus-article-treat
1220 :link '(custom-manual "(gnus)Customizing Articles")
1221 :type gnus-article-treat-custom)
1223 (defcustom gnus-treat-hide-citation nil
1225 Valid values are nil, t, `head', `first', `last', an integer or a
1226 predicate. See Info node `(gnus)Customizing Articles'.
1228 See `gnus-article-highlight-citation' for variables used to
1229 control what it hides."
1230 :group 'gnus-article-treat
1231 :link '(custom-manual "(gnus)Customizing Articles")
1232 :type gnus-article-treat-custom)
1234 (defcustom gnus-treat-hide-citation-maybe nil
1235 "Hide cited text according to certain conditions.
1236 Valid values are nil, t, `head', `first', `last', an integer or a
1237 predicate. See Info node `(gnus)Customizing Articles'.
1239 See `gnus-cite-hide-percentage' and `gnus-cite-hide-absolute' for
1240 how to control what it hides."
1241 :group 'gnus-article-treat
1242 :link '(custom-manual "(gnus)Customizing Articles")
1243 :type gnus-article-treat-custom)
1245 (defcustom gnus-treat-strip-list-identifiers 'head
1246 "Strip list identifiers from `gnus-list-identifiers'.
1247 Valid values are nil, t, `head', `first', `last', an integer or a
1248 predicate. See Info node `(gnus)Customizing Articles'."
1250 :group 'gnus-article-treat
1251 :link '(custom-manual "(gnus)Customizing Articles")
1252 :type gnus-article-treat-custom)
1254 (gnus-define-group-parameter
1257 "Alist of regexps and correspondent identifiers."
1258 :variable-group gnus-article-washing
1260 '(choice :tag "Identifier"
1262 (symbol :tag "Item in `gnus-list-identifiers'" none)
1264 (const :tag "None" nil))
1266 "If non-nil, specify how to remove `identifiers' from articles' subject.
1268 Any symbol is used to look up a regular expression to match the
1269 banner in `gnus-list-identifiers'. A string is used as a regular
1270 expression to match the identifier directly.")
1272 (make-obsolete-variable 'gnus-treat-strip-pgp nil
1273 "Gnus 5.10 (Emacs 22.1)")
1275 (defcustom gnus-treat-strip-pem nil
1276 "Strip PEM signatures.
1277 Valid values are nil, t, `head', `first', `last', an integer or a
1278 predicate. See Info node `(gnus)Customizing Articles'."
1279 :group 'gnus-article-treat
1280 :link '(custom-manual "(gnus)Customizing Articles")
1281 :type gnus-article-treat-custom)
1283 (defcustom gnus-treat-strip-banner t
1284 "Strip banners from articles.
1285 The banner to be stripped is specified in the `banner' group parameter.
1286 Valid values are nil, t, `head', `first', `last', an integer or a
1287 predicate. See Info node `(gnus)Customizing Articles'."
1288 :group 'gnus-article-treat
1289 :link '(custom-manual "(gnus)Customizing Articles")
1290 :type gnus-article-treat-custom)
1292 (defcustom gnus-treat-highlight-headers 'head
1293 "Highlight the headers.
1294 Valid values are nil, t, `head', `first', `last', an integer or a
1295 predicate. See Info node `(gnus)Customizing Articles'."
1296 :group 'gnus-article-treat
1297 :link '(custom-manual "(gnus)Customizing Articles")
1298 :type gnus-article-treat-head-custom)
1299 (put 'gnus-treat-highlight-headers 'highlight t)
1301 (defcustom gnus-treat-highlight-citation t
1302 "Highlight cited text.
1303 Valid values are nil, t, `head', `first', `last', an integer or a
1304 predicate. See Info node `(gnus)Customizing Articles'."
1305 :group 'gnus-article-treat
1306 :link '(custom-manual "(gnus)Customizing Articles")
1307 :type gnus-article-treat-custom)
1308 (put 'gnus-treat-highlight-citation 'highlight t)
1310 (defcustom gnus-treat-strip-headers-in-body t
1311 "Strip the X-No-Archive header line from the beginning of the body.
1312 Valid values are nil, t, `head', `first', `last', an integer or a
1313 predicate. See Info node `(gnus)Customizing Articles'."
1315 :group 'gnus-article-treat
1316 :link '(custom-manual "(gnus)Customizing Articles")
1317 :type gnus-article-treat-custom)
1319 (defcustom gnus-treat-strip-trailing-blank-lines nil
1320 "Strip trailing blank lines.
1321 Valid values are nil, t, `head', `first', `last', an integer or a
1322 predicate. See Info node `(gnus)Customizing Articles'.
1324 When set to t, it also strips trailing blanks in all MIME parts.
1325 Consider to use `last' instead."
1326 :group 'gnus-article-treat
1327 :link '(custom-manual "(gnus)Customizing Articles")
1328 :type gnus-article-treat-custom)
1330 (defcustom gnus-treat-strip-leading-blank-lines nil
1331 "Strip leading blank lines.
1332 Valid values are nil, t, `head', `first', `last', an integer or a
1333 predicate. See Info node `(gnus)Customizing Articles'.
1335 When set to t, it also strips trailing blanks in all MIME parts."
1336 :group 'gnus-article-treat
1337 :link '(custom-manual "(gnus)Customizing Articles")
1338 :type gnus-article-treat-custom)
1340 (defcustom gnus-treat-strip-multiple-blank-lines nil
1341 "Strip multiple blank lines.
1342 Valid values are nil, t, `head', `first', `last', an integer or a
1343 predicate. See Info node `(gnus)Customizing Articles'."
1344 :group 'gnus-article-treat
1345 :link '(custom-manual "(gnus)Customizing Articles")
1346 :type gnus-article-treat-custom)
1348 (defcustom gnus-treat-unfold-headers 'head
1349 "Unfold folded header lines.
1350 Valid values are nil, t, `head', `first', `last', an integer or a
1351 predicate. See Info node `(gnus)Customizing Articles'."
1353 :group 'gnus-article-treat
1354 :link '(custom-manual "(gnus)Customizing Articles")
1355 :type gnus-article-treat-custom)
1357 (defcustom gnus-article-unfold-long-headers nil
1358 "If non-nil, allow unfolding headers even if the header is long.
1359 If it is a regexp, only long headers matching this regexp are unfolded.
1360 If it is t, all long headers are unfolded.
1362 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1363 :version "23.1" ;; No Gnus
1364 :group 'gnus-article-treat
1365 :type '(choice (const nil)
1366 (const :tag "all" t)
1369 (defcustom gnus-treat-fold-headers nil
1371 Valid values are nil, t, `head', `first', `last', an integer or a
1372 predicate. See Info node `(gnus)Customizing Articles'."
1374 :group 'gnus-article-treat
1375 :link '(custom-manual "(gnus)Customizing Articles")
1376 :type gnus-article-treat-custom)
1378 (defcustom gnus-treat-fold-newsgroups 'head
1379 "Fold the Newsgroups and Followup-To headers.
1380 Valid values are nil, t, `head', `first', `last', an integer or a
1381 predicate. See Info node `(gnus)Customizing Articles'."
1383 :group 'gnus-article-treat
1384 :link '(custom-manual "(gnus)Customizing Articles")
1385 :type gnus-article-treat-custom)
1387 (defcustom gnus-treat-overstrike t
1388 "Treat overstrike highlighting.
1389 Valid values are nil, t, `head', `first', `last', an integer or a
1390 predicate. See Info node `(gnus)Customizing Articles'."
1391 :group 'gnus-article-treat
1392 :link '(custom-manual "(gnus)Customizing Articles")
1393 :type gnus-article-treat-custom)
1394 (put 'gnus-treat-overstrike 'highlight t)
1396 (defcustom gnus-treat-ansi-sequences (if (locate-library "ansi-color") t)
1397 "Treat ANSI SGR control sequences.
1398 Valid values are nil, t, `head', `first', `last', an integer or a
1399 predicate. See Info node `(gnus)Customizing Articles'."
1400 :group 'gnus-article-treat
1401 :link '(custom-manual "(gnus)Customizing Articles")
1402 :type gnus-article-treat-custom)
1404 (make-obsolete-variable 'gnus-treat-display-xface
1405 'gnus-treat-display-x-face "Emacs 22.1")
1407 (defcustom gnus-treat-display-x-face
1408 (and (not noninteractive)
1409 (gnus-image-type-available-p 'xbm)
1411 (and (string-match "^0x" (shell-command-to-string "uncompface"))
1412 (executable-find "icontopbm"))
1413 ;; shell-command-to-string may signal an error, e.g. if
1414 ;; shell-file-name is not found.
1417 "Display X-Face headers.
1418 Valid values are nil and `head'.
1419 See Info node `(gnus)Customizing Articles' and Info node
1420 `(gnus)X-Face' for details."
1421 :group 'gnus-article-treat
1423 :link '(custom-manual "(gnus)Customizing Articles")
1424 :link '(custom-manual "(gnus)X-Face")
1425 :type gnus-article-treat-head-custom
1426 :set (lambda (symbol value)
1429 (cond ((or (boundp symbol) (get symbol 'saved-value))
1431 ((boundp 'gnus-treat-display-xface)
1433 ** gnus-treat-display-xface is an obsolete variable;\
1434 use gnus-treat-display-x-face instead")
1435 (default-value 'gnus-treat-display-xface))
1436 ((get 'gnus-treat-display-xface 'saved-value)
1438 ** gnus-treat-display-xface is an obsolete variable;\
1439 use gnus-treat-display-x-face instead")
1440 (eval (car (get 'gnus-treat-display-xface 'saved-value))))
1443 (put 'gnus-treat-display-x-face 'highlight t)
1445 (defcustom gnus-treat-display-face
1446 (and (not noninteractive)
1447 (gnus-image-type-available-p 'png)
1449 "Display Face headers.
1450 Valid values are nil, t, `head', `first', `last', an integer or a
1451 predicate. See Info node `(gnus)Customizing Articles' and Info
1452 node `(gnus)Face' for details."
1453 :group 'gnus-article-treat
1455 :link '(custom-manual "(gnus)Customizing Articles")
1456 :link '(custom-manual "(gnus)X-Face")
1457 :type gnus-article-treat-head-custom)
1458 (put 'gnus-treat-display-face 'highlight t)
1460 (defcustom gnus-treat-display-smileys (gnus-image-type-available-p 'xpm)
1462 Valid values are nil, t, `head', `first', `last', an integer or a
1463 predicate. See Info node `(gnus)Customizing Articles' and Info
1464 node `(gnus)Smileys' for details."
1465 :group 'gnus-article-treat
1467 :link '(custom-manual "(gnus)Customizing Articles")
1468 :link '(custom-manual "(gnus)Smileys")
1469 :type gnus-article-treat-custom)
1470 (put 'gnus-treat-display-smileys 'highlight t)
1472 (defcustom gnus-treat-from-picon
1473 (if (and (gnus-image-type-available-p 'xpm)
1474 (gnus-picons-installed-p))
1476 "Display picons in the From header.
1477 Valid values are nil, t, `head', `first', `last', an integer or a
1478 predicate. See Info node `(gnus)Customizing Articles' and Info
1479 node `(gnus)Picons' for details."
1481 :group 'gnus-article-treat
1483 :link '(custom-manual "(gnus)Customizing Articles")
1484 :link '(custom-manual "(gnus)Picons")
1485 :type gnus-article-treat-head-custom)
1486 (put 'gnus-treat-from-picon 'highlight t)
1488 (defcustom gnus-treat-mail-picon
1489 (if (and (gnus-image-type-available-p 'xpm)
1490 (gnus-picons-installed-p))
1492 "Display picons in To and Cc headers.
1493 Valid values are nil, t, `head', `first', `last', an integer or a
1494 predicate. See Info node `(gnus)Customizing Articles' and Info
1495 node `(gnus)Picons' for details."
1497 :group 'gnus-article-treat
1499 :link '(custom-manual "(gnus)Customizing Articles")
1500 :link '(custom-manual "(gnus)Picons")
1501 :type gnus-article-treat-head-custom)
1502 (put 'gnus-treat-mail-picon 'highlight t)
1504 (defcustom gnus-treat-newsgroups-picon
1505 (if (and (gnus-image-type-available-p 'xpm)
1506 (gnus-picons-installed-p))
1508 "Display picons in the Newsgroups and Followup-To headers.
1509 Valid values are nil, t, `head', `first', `last', an integer or a
1510 predicate. See Info node `(gnus)Customizing Articles' and Info
1511 node `(gnus)Picons' for details."
1513 :group 'gnus-article-treat
1515 :link '(custom-manual "(gnus)Customizing Articles")
1516 :link '(custom-manual "(gnus)Picons")
1517 :type gnus-article-treat-head-custom)
1518 (put 'gnus-treat-newsgroups-picon 'highlight t)
1520 (defcustom gnus-treat-from-gravatar nil
1521 "Display gravatars in the From header.
1522 Valid values are nil, t, `head', `first', `last', an integer or a
1523 predicate. See Info node `(gnus)Customizing Articles' and Info
1524 node `(gnus)Gravatars' for details."
1526 :group 'gnus-article-treat
1527 :group 'gnus-gravatar
1528 :link '(custom-manual "(gnus)Customizing Articles")
1529 :link '(custom-manual "(gnus)Gravatars")
1530 :type gnus-article-treat-head-custom)
1531 (put 'gnus-treat-from-gravatar 'highlight t)
1533 (defcustom gnus-treat-mail-gravatar nil
1534 "Display gravatars in To and Cc headers.
1535 Valid values are nil, t, `head', `first', `last', an integer or a
1536 predicate. See Info node `(gnus)Customizing Articles' and Info
1537 node `(gnus)Gravatars' for details."
1539 :group 'gnus-article-treat
1540 :group 'gnus-gravatar
1541 :link '(custom-manual "(gnus)Customizing Articles")
1542 :link '(custom-manual "(gnus)Gravatars")
1543 :type gnus-article-treat-head-custom)
1544 (put 'gnus-treat-mail-gravatar 'highlight t)
1546 (defcustom gnus-treat-body-boundary
1547 (if (or gnus-treat-newsgroups-picon
1548 gnus-treat-mail-picon
1549 gnus-treat-from-picon
1550 gnus-treat-from-gravatar
1551 gnus-treat-mail-gravatar)
1552 ;; If there's much decoration, the user might prefer a boundary.
1555 "Draw a boundary at the end of the headers.
1556 Valid values are nil and `head'.
1557 See Info node `(gnus)Customizing Articles' for details."
1559 :group 'gnus-article-treat
1560 :link '(custom-manual "(gnus)Customizing Articles")
1561 :type gnus-article-treat-head-custom)
1563 (defcustom gnus-treat-capitalize-sentences nil
1564 "Capitalize sentence-starting words.
1565 Valid values are nil, t, `head', `first', `last', an integer or a
1566 predicate. See Info node `(gnus)Customizing Articles'."
1568 :group 'gnus-article-treat
1569 :link '(custom-manual "(gnus)Customizing Articles")
1570 :type gnus-article-treat-custom)
1572 (defcustom gnus-treat-wash-html nil
1574 Valid values are nil, t, `head', `first', `last', an integer or a
1575 predicate. See Info node `(gnus)Customizing Articles'."
1577 :group 'gnus-article-treat
1578 :link '(custom-manual "(gnus)Customizing Articles")
1579 :type gnus-article-treat-custom)
1581 (defcustom gnus-treat-fill-long-lines '(typep "text/plain")
1583 Valid values are nil, t, `head', `first', `last', an integer or a
1584 predicate. See Info node `(gnus)Customizing Articles'."
1586 :group 'gnus-article-treat
1587 :link '(custom-manual "(gnus)Customizing Articles")
1588 :type gnus-article-treat-custom)
1590 (defcustom gnus-treat-x-pgp-sig nil
1592 To automatically treat X-PGP-Sig, set it to head.
1593 Valid values are nil, t, `head', `first', `last', an integer or a
1594 predicate. See Info node `(gnus)Customizing Articles'."
1596 :group 'gnus-article-treat
1597 :group 'mime-security
1598 :link '(custom-manual "(gnus)Customizing Articles")
1599 :type gnus-article-treat-custom)
1601 (defvar gnus-article-encrypt-protocol-alist
1602 '(("PGP" . mml2015-self-encrypt)))
1604 ;; Set to nil if more than one protocol added to
1605 ;; gnus-article-encrypt-protocol-alist.
1606 (defcustom gnus-article-encrypt-protocol "PGP"
1607 "The protocol used for encrypt articles.
1608 It is a string, such as \"PGP\". If nil, ask user."
1611 :group 'mime-security)
1613 (defvar idna-program)
1615 (defcustom gnus-use-idna (and (mm-coding-system-p 'utf-8)
1619 (invalid-operation))
1621 (executable-find idna-program))
1622 "Whether IDNA decoding of headers is used when viewing messages.
1623 This requires GNU Libidn, and by default only enabled if it is found."
1625 :group 'gnus-article-headers
1628 (defcustom gnus-article-over-scroll nil
1629 "If non-nil, allow scrolling the article buffer even when there no more text."
1631 :group 'gnus-article
1634 (defcustom gnus-inhibit-images nil
1635 "Non-nil means inhibit displaying of images inline in the article body."
1637 :group 'gnus-article
1640 (defcustom gnus-blocked-images 'gnus-block-private-groups
1641 "Images that have URLs matching this regexp will be blocked.
1642 This can also be a function to be evaluated. If so, it will be
1643 called with the group name as the parameter, and should return a
1647 :type '(choice (const :tag "Allow all" nil)
1648 (regexp :tag "Regular expression")
1649 (function :tag "Use a function")))
1651 ;;; Internal variables
1653 (defvar gnus-english-month-names
1654 '("January" "February" "March" "April" "May" "June" "July" "August"
1655 "September" "October" "November" "December"))
1657 (defvar article-goto-body-goes-to-point-min-p nil)
1658 (defvar gnus-article-wash-types nil)
1659 (defvar gnus-article-emphasis-alist nil)
1660 (defvar gnus-article-image-alist nil)
1662 (defvar gnus-article-mime-handle-alist-1 nil)
1663 (defvar gnus-treatment-function-alist
1664 '((gnus-treat-strip-cr gnus-article-remove-cr)
1665 (gnus-treat-x-pgp-sig gnus-article-verify-x-pgp-sig)
1666 (gnus-treat-strip-banner gnus-article-strip-banner)
1667 (gnus-treat-strip-headers-in-body gnus-article-strip-headers-in-body)
1668 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1669 (gnus-treat-buttonize gnus-article-add-buttons)
1670 (gnus-treat-fill-article gnus-article-fill-cited-article)
1671 (gnus-treat-fill-long-lines gnus-article-fill-cited-long-lines)
1672 (gnus-treat-unsplit-urls gnus-article-unsplit-urls)
1673 (gnus-treat-display-x-face gnus-article-display-x-face)
1674 (gnus-treat-display-face gnus-article-display-face)
1675 (gnus-treat-hide-headers gnus-article-maybe-hide-headers)
1676 (gnus-treat-hide-boring-headers gnus-article-hide-boring-headers)
1677 (gnus-treat-hide-signature gnus-article-hide-signature)
1678 (gnus-treat-strip-list-identifiers gnus-article-hide-list-identifiers)
1679 (gnus-treat-leading-whitespace gnus-article-remove-leading-whitespace)
1680 (gnus-treat-from-picon gnus-treat-from-picon)
1681 (gnus-treat-mail-picon gnus-treat-mail-picon)
1682 (gnus-treat-newsgroups-picon gnus-treat-newsgroups-picon)
1683 (gnus-treat-strip-pem gnus-article-hide-pem)
1684 (gnus-treat-date gnus-article-treat-date)
1685 (gnus-treat-from-gravatar gnus-treat-from-gravatar)
1686 (gnus-treat-mail-gravatar gnus-treat-mail-gravatar)
1687 (gnus-treat-highlight-headers gnus-article-highlight-headers)
1688 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1689 (gnus-treat-strip-trailing-blank-lines
1690 gnus-article-remove-trailing-blank-lines)
1691 (gnus-treat-strip-leading-blank-lines
1692 gnus-article-strip-leading-blank-lines)
1693 (gnus-treat-strip-multiple-blank-lines
1694 gnus-article-strip-multiple-blank-lines)
1695 (gnus-treat-overstrike gnus-article-treat-overstrike)
1696 (gnus-treat-ansi-sequences gnus-article-treat-ansi-sequences)
1697 (gnus-treat-unfold-headers gnus-article-treat-unfold-headers)
1698 (gnus-treat-fold-newsgroups gnus-article-treat-fold-newsgroups)
1699 (gnus-treat-fold-headers gnus-article-treat-fold-headers)
1700 (gnus-treat-buttonize-head gnus-article-add-buttons-to-head)
1701 (gnus-treat-display-smileys gnus-treat-smiley)
1702 (gnus-treat-capitalize-sentences gnus-article-capitalize-sentences)
1703 (gnus-treat-wash-html gnus-article-wash-html)
1704 (gnus-treat-emphasize gnus-article-emphasize)
1705 (gnus-treat-hide-citation gnus-article-hide-citation)
1706 (gnus-treat-hide-citation-maybe gnus-article-hide-citation-maybe)
1707 (gnus-treat-highlight-citation gnus-article-highlight-citation)
1708 (gnus-treat-body-boundary gnus-article-treat-body-boundary)))
1710 (defvar gnus-article-mime-handle-alist nil)
1711 (defvar article-lapsed-timer nil)
1712 (defvar gnus-article-current-summary nil)
1714 (defvar gnus-article-mode-syntax-table
1715 (let ((table (copy-syntax-table text-mode-syntax-table)))
1716 ;; This causes the citation match run O(2^n).
1717 ;; (modify-syntax-entry ?- "w" table)
1718 (modify-syntax-entry ?> ")<" table)
1719 (modify-syntax-entry ?< "(>" table)
1720 ;; make M-. in article buffers work for `foo' strings
1721 (modify-syntax-entry ?' " " table)
1722 (modify-syntax-entry ?` " " table)
1724 "Syntax table used in article mode buffers.
1725 Initialized from `text-mode-syntax-table'.")
1727 (defvar gnus-save-article-buffer nil)
1729 (defvar gnus-number-of-articles-to-be-saved nil)
1731 (defvar gnus-inhibit-hiding nil)
1733 (defvar gnus-article-edit-mode nil)
1735 ;;; Macros for dealing with the article buffer.
1737 (defmacro gnus-with-article-headers (&rest forms)
1738 `(with-current-buffer gnus-article-buffer
1740 (let ((inhibit-read-only t)
1741 (inhibit-point-motion-hooks t)
1742 (case-fold-search t))
1743 (article-narrow-to-head)
1746 (put 'gnus-with-article-headers 'lisp-indent-function 0)
1747 (put 'gnus-with-article-headers 'edebug-form-spec '(body))
1749 (defmacro gnus-with-article-buffer (&rest forms)
1750 `(when (buffer-live-p (get-buffer gnus-article-buffer))
1751 (with-current-buffer gnus-article-buffer
1752 (let ((inhibit-read-only t))
1755 (put 'gnus-with-article-buffer 'lisp-indent-function 0)
1756 (put 'gnus-with-article-buffer 'edebug-form-spec '(body))
1758 (defun gnus-article-goto-header (header)
1759 "Go to HEADER, which is a regular expression."
1760 (re-search-forward (concat "^\\(" header "\\):") nil t))
1762 (defsubst gnus-article-hide-text (b e props)
1763 "Set text PROPS on the B to E region."
1764 (gnus-add-text-properties-when 'article-type nil b e props))
1766 (defsubst gnus-article-unhide-text (b e)
1767 "Remove hidden text properties from region between B and E."
1768 (remove-text-properties b e gnus-hidden-properties))
1770 (defun gnus-article-hide-text-type (b e type)
1771 "Hide text of TYPE between B and E."
1772 (gnus-add-wash-type type)
1773 (gnus-article-hide-text
1774 b e (cons 'article-type (cons type gnus-hidden-properties))))
1776 (defun gnus-article-unhide-text-type (b e type)
1777 "Unhide text of TYPE between B and E."
1778 (gnus-delete-wash-type type)
1779 (remove-text-properties
1780 b e (cons 'article-type (cons type gnus-hidden-properties))))
1782 (defun gnus-article-delete-text-of-type (type)
1783 "Delete text of TYPE in the current buffer."
1785 (let ((b (point-min)))
1786 (if (eq type 'multipart)
1787 ;; Remove MIME buttons associated with multipart/alternative parts.
1790 (while (if (get-text-property (point) 'gnus-part)
1792 (when (setq b (next-single-property-change (point)
1797 (skip-chars-forward "\n")
1798 (when (eq (get-text-property b 'article-type) 'multipart)
1799 (delete-region b (point)))))
1800 (while (setq b (text-property-any b (point-max) 'article-type type))
1802 b (or (text-property-not-all b (point-max) 'article-type type)
1805 (defun gnus-article-delete-invisible-text ()
1806 "Delete all invisible text in the current buffer."
1808 (let ((b (point-min)))
1809 (while (setq b (text-property-any b (point-max) 'invisible t))
1811 b (or (text-property-not-all b (point-max) 'invisible t)
1814 (defsubst gnus-article-header-rank ()
1815 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1816 (let ((list gnus-sorted-header-list)
1819 (if (looking-at (car list))
1821 (setq list (cdr list))
1825 (defun article-hide-headers (&optional _arg _delete)
1826 "Hide unwanted headers and possibly sort them as well."
1828 ;; This function might be inhibited.
1829 (unless gnus-inhibit-hiding
1830 (let ((inhibit-read-only t)
1831 (case-fold-search t)
1832 (max (1+ (length gnus-sorted-header-list)))
1833 (inhibit-point-motion-hooks t)
1834 (cur (current-buffer))
1835 ignored visible beg)
1837 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1838 ;; group parameters, so we should go to the summary buffer.
1841 (progn (set-buffer gnus-summary-buffer) t)
1843 (setq ignored (when (not gnus-visible-headers)
1844 (cond ((stringp gnus-ignored-headers)
1845 gnus-ignored-headers)
1846 ((listp gnus-ignored-headers)
1847 (mapconcat 'identity
1848 gnus-ignored-headers
1850 visible (cond ((stringp gnus-visible-headers)
1851 gnus-visible-headers)
1852 ((and gnus-visible-headers
1853 (listp gnus-visible-headers))
1854 (mapconcat 'identity
1855 gnus-visible-headers
1859 ;; First we narrow to just the headers.
1860 (article-narrow-to-head)
1861 ;; Hide any "From " lines at the beginning of (mail) articles.
1862 (while (looking-at "From ")
1865 (delete-region (point-min) (point)))
1866 ;; Then treat the rest of the header lines.
1867 ;; Then we use the two regular expressions
1868 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1869 ;; select which header lines is to remain visible in the
1871 (while (re-search-forward "^[^ \t:]*:" nil t)
1873 ;; Mark the rank of the header.
1875 (point) (1+ (point)) 'message-rank
1876 (if (or (and visible (looking-at visible))
1878 (not (looking-at ignored))))
1879 (gnus-article-header-rank)
1882 (message-sort-headers-1)
1883 (when (setq beg (text-property-any
1884 (point-min) (point-max) 'message-rank (+ 2 max)))
1885 ;; We delete the unwanted headers.
1886 (gnus-add-wash-type 'headers)
1887 (add-text-properties (point-min) (+ 5 (point-min))
1888 '(article-type headers dummy-invisible t))
1889 (delete-region beg (point-max))))))))
1891 (defun article-hide-boring-headers (&optional arg)
1892 "Toggle hiding of headers that aren't very interesting.
1893 If given a negative prefix, always show; if given a positive prefix,
1895 (interactive (gnus-article-hidden-arg))
1896 (when (and (not (gnus-article-check-hidden-text 'boring-headers arg))
1897 (not gnus-show-all-headers))
1900 (let ((inhibit-read-only t)
1901 (inhibit-point-motion-hooks t))
1902 (article-narrow-to-head)
1903 (dolist (elem gnus-boring-article-headers)
1904 (goto-char (point-min))
1906 ;; Hide empty headers.
1908 (while (re-search-forward "^[^: \t]+:[ \t]*\n[^ \t]" nil t)
1910 (gnus-article-hide-text-type
1914 (if (re-search-forward "^[^ \t]" nil t)
1918 ;; Hide boring Newsgroups header.
1919 ((eq elem 'newsgroups)
1920 (when (gnus-string-equal
1921 (gnus-fetch-field "newsgroups")
1922 (gnus-group-real-name
1923 (if (boundp 'gnus-newsgroup-name)
1926 (gnus-article-hide-header "newsgroups")))
1927 ((eq elem 'to-address)
1928 (let ((to (message-fetch-field "to"))
1930 (gnus-parameter-to-address
1931 (if (boundp 'gnus-newsgroup-name)
1932 gnus-newsgroup-name ""))))
1933 (when (and to to-address
1936 ;; only one address in To
1937 (nth 1 (mail-extract-address-components to))
1939 (gnus-article-hide-header "to"))))
1941 (let ((to (message-fetch-field "to"))
1943 (gnus-parameter-to-list
1944 (if (boundp 'gnus-newsgroup-name)
1945 gnus-newsgroup-name ""))))
1946 (when (and to to-list
1949 ;; only one address in To
1950 (nth 1 (mail-extract-address-components to))
1952 (gnus-article-hide-header "to"))))
1954 (let ((cc (message-fetch-field "cc"))
1956 (gnus-parameter-to-list
1957 (if (boundp 'gnus-newsgroup-name)
1958 gnus-newsgroup-name ""))))
1959 (when (and cc to-list
1962 ;; only one address in CC
1963 (nth 1 (mail-extract-address-components cc))
1965 (gnus-article-hide-header "cc"))))
1966 ((eq elem 'followup-to)
1967 (when (gnus-string-equal
1968 (message-fetch-field "followup-to")
1969 (message-fetch-field "newsgroups"))
1970 (gnus-article-hide-header "followup-to")))
1971 ((eq elem 'reply-to)
1972 (if (gnus-group-find-parameter
1973 gnus-newsgroup-name 'broken-reply-to)
1974 (gnus-article-hide-header "reply-to")
1975 (let ((from (message-fetch-field "from"))
1976 (reply-to (message-fetch-field "reply-to")))
1983 (lambda (x) (downcase (cadr x)))
1984 (mail-extract-address-components from t))
1987 (lambda (x) (downcase (cadr x)))
1988 (mail-extract-address-components reply-to t))
1990 (gnus-article-hide-header "reply-to")))))
1992 (let ((date (with-current-buffer gnus-original-article-buffer
1993 ;; If date in `gnus-article-buffer' is localized
1994 ;; (`gnus-treat-date-user-defined'),
1995 ;; `days-between' might fail.
1996 (message-fetch-field "date"))))
1998 (< (days-between (current-time-string) date)
2000 (gnus-article-hide-header "date"))))
2002 (let ((to (message-fetch-field "to"))
2003 (cc (message-fetch-field "cc")))
2004 (when (> (length to) 1024)
2005 (gnus-article-hide-header "to"))
2006 (when (> (length cc) 1024)
2007 (gnus-article-hide-header "cc"))))
2011 (goto-char (point-min))
2012 (while (re-search-forward "^to:" nil t)
2013 (setq to-count (1+ to-count)))
2014 (when (> to-count 1)
2015 (while (> to-count 0)
2016 (goto-char (point-min))
2018 (re-search-forward "^to:" nil nil to-count)
2020 (narrow-to-region (point) (point-max))
2021 (gnus-article-hide-header "to"))
2022 (setq to-count (1- to-count))))
2023 (goto-char (point-min))
2024 (while (re-search-forward "^cc:" nil t)
2025 (setq cc-count (1+ cc-count)))
2026 (when (> cc-count 1)
2027 (while (> cc-count 0)
2028 (goto-char (point-min))
2030 (re-search-forward "^cc:" nil nil cc-count)
2032 (narrow-to-region (point) (point-max))
2033 (gnus-article-hide-header "cc"))
2034 (setq cc-count (1- cc-count)))))))))))))
2036 (defun gnus-article-hide-header (header)
2038 (goto-char (point-min))
2039 (when (re-search-forward (concat "^" header ":") nil t)
2040 (gnus-article-hide-text-type
2044 (if (re-search-forward "^[^ \t]" nil t)
2049 (defvar gnus-article-normalized-header-length 40
2050 "Length of normalized headers.")
2052 (defun article-normalize-headers ()
2053 "Make all header lines 40 characters long."
2055 (let ((inhibit-read-only t)
2059 (article-narrow-to-head)
2062 ((< (setq column (- (point-at-eol) (point)))
2063 gnus-article-normalized-header-length)
2065 (insert (make-string
2066 (- gnus-article-normalized-header-length column)
2068 ((> column gnus-article-normalized-header-length)
2071 (forward-char gnus-article-normalized-header-length)
2078 (forward-line 1))))))
2080 (defun article-treat-dumbquotes ()
2081 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2082 Note that this function guesses whether a character is a sm*rtq**t* or
2083 not, so it should only be used interactively.
2085 Sm*rtq**t*s are M****s***'s unilateral extension to the
2086 iso-8859-1 character map in an attempt to provide more quoting
2087 characters. If you see something like \\222 or \\264 where
2088 you're expecting some kind of apostrophe or quotation mark, then
2091 (article-translate-strings gnus-article-dumbquotes-map))
2093 (defvar org-entities)
2095 (defun article-treat-non-ascii ()
2096 "Translate many Unicode characters into their ASCII equivalents."
2098 (require 'org-entities)
2099 (let ((table (make-char-table nil)))
2100 (dolist (elem org-entities)
2101 (when (and (listp elem)
2102 (= (length (nth 6 elem)) 1))
2103 (set-char-table-range table (aref (nth 6 elem) 0) (nth 4 elem))))
2105 (when (article-goto-body)
2106 (let ((inhibit-read-only t)
2109 (if (not (setq replace (aref table (following-char))))
2112 (setq props (text-properties-at (point)))
2114 (add-text-properties (point) (progn (insert replace) (point))
2116 (insert replace)))))))))
2118 (defun article-translate-strings (map)
2119 "Translate all string in the body of the article according to MAP.
2120 MAP is an alist where the elements are on the form (\"from\" \"to\")."
2122 (when (article-goto-body)
2123 (let ((inhibit-read-only t))
2125 (let ((from (car elem))
2129 (while (search-forward from nil t)
2132 (if (eq (following-char) from)
2136 (forward-char 1)))))))))))
2138 (defun article-treat-overstrike ()
2139 "Translate overstrikes into bold text."
2142 (when (article-goto-body)
2143 (let ((inhibit-read-only t))
2144 (while (search-forward "\b" nil t)
2145 (let ((next (char-after))
2146 (previous (char-after (- (point) 2))))
2147 ;; We do the boldification/underlining by hiding the
2148 ;; overstrikes and putting the proper text property
2152 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
2153 (put-text-property (point) (1+ (point)) 'face 'bold))
2155 (gnus-article-hide-text-type
2156 (1- (point)) (1+ (point)) 'overstrike)
2158 (- (point) 2) (1- (point)) 'face 'underline))
2160 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
2162 (point) (1+ (point)) 'face 'underline)))))))))
2164 (defun article-treat-ansi-sequences ()
2165 "Translate ANSI SGR control sequences into overlays or extents."
2168 (when (article-goto-body)
2169 (let ((inhibit-read-only t))
2170 (ansi-color-apply-on-region (point) (point-max))))))
2172 (defun gnus-article-treat-unfold-headers ()
2173 "Unfold folded message headers.
2174 Only the headers that fit into the current window width will be
2177 (gnus-with-article-headers
2181 (mail-header-narrow-to-field)
2182 (let* ((header (buffer-string))
2184 (or (equal gnus-article-unfold-long-headers t)
2185 (and (stringp gnus-article-unfold-long-headers)
2186 (string-match gnus-article-unfold-long-headers
2190 (goto-char (point-min))
2191 (while (re-search-forward "\n[\t ]" nil t)
2192 (replace-match " " t t)))
2193 (setq length (- (point-max) (point-min) 1))
2194 (when (or unfoldable
2195 (< length (window-width)))
2196 (while (re-search-forward "\n[\t ]" nil t)
2197 (replace-match " " t t))))
2198 (goto-char (point-max)))))))
2200 (defun gnus-article-treat-fold-headers ()
2201 "Fold message headers."
2203 (gnus-with-article-headers
2206 (mail-header-narrow-to-field)
2207 (mail-header-fold-field)
2208 (goto-char (point-max))))))
2210 (defun gnus-treat-smiley ()
2211 "Toggle display of textual emoticons (\"smileys\") as small graphical icons."
2213 (gnus-with-article-buffer
2214 (if (memq 'smiley gnus-article-wash-types)
2215 (gnus-delete-images 'smiley)
2217 (let ((images (smiley-region (point) (point-max))))
2219 (gnus-add-wash-type 'smiley)
2220 (dolist (image images)
2221 (gnus-add-image 'smiley image)))))))
2223 (defun gnus-article-remove-images ()
2224 "Remove all images from the article buffer."
2226 (gnus-with-article-buffer
2229 (dolist (elem gnus-article-image-alist)
2230 (gnus-delete-images (car elem))))))
2232 (autoload 'w3m-toggle-inline-images "w3m")
2234 (defun gnus-article-show-images ()
2235 "Show any images that are in the HTML-rendered article buffer.
2236 This only works if the article in question is HTML."
2238 (gnus-with-article-buffer
2241 (if (eq mm-text-html-renderer 'w3m)
2242 (w3m-toggle-inline-images)
2243 (dolist (region (gnus-find-text-property-region (point-min) (point-max)
2245 (destructuring-bind (start end function) region
2246 (funcall function (get-text-property start 'image-url)
2249 (defun gnus-article-treat-fold-newsgroups ()
2250 "Unfold folded message headers.
2251 Only the headers that fit into the current window width will be
2254 (gnus-with-article-headers
2255 (while (gnus-article-goto-header "newsgroups\\|followup-to")
2257 (mail-header-narrow-to-field)
2258 (while (re-search-forward ", *" nil t)
2259 (replace-match ", " t t))
2260 (mail-header-fold-field)
2261 (goto-char (point-max))))))
2263 (defcustom gnus-article-truncate-lines (default-value 'truncate-lines)
2264 "Value of `truncate-lines' in Gnus Article buffer.
2265 Valid values are nil, t, `head', `first', `last', an integer or a
2266 predicate. See Info node `(gnus)Customizing Articles'."
2267 :version "23.1" ;; No Gnus
2268 :group 'gnus-article
2269 ;; :link '(custom-manual "(gnus)Customizing Articles")
2272 (defun gnus-article-toggle-truncate-lines (&optional arg)
2273 "Toggle whether to fold or truncate long lines in article the buffer.
2274 If ARG is non-nil and not a number, toggle
2275 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2276 long lines if and only if arg is positive."
2279 ((and (numberp arg) (> arg 0))
2280 (setq gnus-article-truncate-lines t))
2282 (setq gnus-article-truncate-lines nil))
2284 (setq gnus-article-truncate-lines
2285 (not gnus-article-truncate-lines))))
2286 (gnus-with-article-buffer
2288 ((and (numberp arg) (> arg 0))
2289 (setq truncate-lines nil))
2291 (setq truncate-lines t)))
2292 (toggle-truncate-lines)))
2294 (defun gnus-article-treat-body-boundary ()
2295 "Place a boundary line at the end of the headers."
2297 (when (and gnus-body-boundary-delimiter
2298 (> (length gnus-body-boundary-delimiter) 0))
2299 (gnus-with-article-headers
2300 (goto-char (point-max))
2301 (let ((start (point)))
2302 (insert "X-Boundary: ")
2303 (add-text-properties start (point) gnus-hidden-properties)
2304 (insert (let (str (max (window-width)))
2305 (while (>= max (length str))
2306 (setq str (concat str gnus-body-boundary-delimiter)))
2307 (substring str 0 max))
2309 (put-text-property start (point) 'gnus-decoration 'header)))))
2311 (defun article-fill-long-lines ()
2312 "Fill lines that are wider than the window width."
2315 (let ((inhibit-read-only t)
2316 (width (window-width (get-buffer-window (current-buffer)))))
2319 (let ((adaptive-fill-mode nil)) ;Why? -sm
2322 (when (>= (current-column) (min fill-column width))
2323 (narrow-to-region (min (1+ (point)) (point-max))
2325 (let ((goback (point-marker)))
2326 (fill-paragraph nil)
2327 (goto-char (marker-position goback)))
2329 (forward-line 1)))))))
2331 (defun article-capitalize-sentences ()
2332 "Capitalize the first word in each sentence."
2335 (let ((inhibit-read-only t)
2336 (paragraph-start "^[\n\^L]"))
2340 (forward-sentence)))))
2342 (defun article-remove-cr ()
2343 "Remove trailing CRs and then translate remaining CRs into LFs."
2346 (let ((inhibit-read-only t))
2347 (goto-char (point-min))
2348 (while (re-search-forward "\r+$" nil t)
2349 (replace-match "" t t))
2350 (goto-char (point-min))
2351 (while (search-forward "\r" nil t)
2352 (replace-match "\n" t t)))))
2354 (defun article-remove-trailing-blank-lines ()
2355 "Remove all trailing blank lines from the article."
2358 (let ((inhibit-read-only t))
2359 (goto-char (point-max))
2363 (while (and (not (bobp))
2364 (looking-at "^[ \t]*$")
2365 (not (gnus-annotation-in-region-p
2366 (point) (point-at-eol))))
2371 (defvar gnus-face-properties-alist)
2373 (defun article-display-face (&optional force)
2374 "Display any Face headers in the header."
2375 (interactive (list 'force))
2376 (let ((wash-face-p buffer-read-only))
2377 (gnus-with-article-headers
2378 ;; When displaying parts, this function can be called several times on
2379 ;; the same article, without any intended toggle semantic (as typing `W
2380 ;; D d' would have). So face deletion must occur only when we come from
2381 ;; an interactive command, that is when the *Article* buffer is
2383 (if (and wash-face-p (memq 'face gnus-article-wash-types))
2384 (gnus-delete-images 'face)
2385 (let ((from (message-fetch-field "from"))
2387 (save-current-buffer
2388 (when (and wash-face-p
2389 (gnus-buffer-live-p gnus-original-article-buffer)
2390 (not (re-search-forward "^Face:[\t ]*" nil t)))
2391 (set-buffer gnus-original-article-buffer))
2393 (mail-narrow-to-head)
2395 ;; Check whether this face is censored.
2396 (not (and gnus-article-x-face-too-ugly
2398 (setq from (message-fetch-field "from")))
2399 (string-match gnus-article-x-face-too-ugly
2401 (while (gnus-article-goto-header "Face")
2402 (push (mail-header-field-value) faces)))))
2404 (goto-char (point-min))
2406 (unless (setq from (gnus-article-goto-header "from"))
2409 (insert " [no 'from' set]\n"))
2411 (when (setq png (gnus-convert-face-to-png (pop faces)))
2413 (apply 'gnus-create-image png 'png t
2414 (cdr (assq 'png gnus-face-properties-alist))))
2417 (gnus-add-wash-type 'face)
2418 (gnus-add-image 'face image)
2419 (gnus-put-image image nil 'face)))))))))))
2421 (defun article-display-x-face (&optional force)
2422 "Look for an X-Face header and display it if present."
2423 (interactive (list 'force))
2424 (let ((wash-face-p buffer-read-only)) ;; When type `W f'
2425 (gnus-with-article-headers
2426 ;; Delete the old process, if any.
2427 (when (process-status "article-x-face")
2428 (delete-process "article-x-face"))
2429 ;; See the comment in `article-display-face'.
2430 (if (and wash-face-p (memq 'xface gnus-article-wash-types))
2431 ;; We have already displayed X-Faces, so we remove them
2433 (gnus-delete-images 'xface)
2435 (let ((from (message-fetch-field "from"))
2437 (save-current-buffer
2438 (when (and wash-face-p
2439 (gnus-buffer-live-p gnus-original-article-buffer)
2440 (not (re-search-forward "^X-Face:[\t ]*" nil t)))
2441 ;; If type `W f', use gnus-original-article-buffer,
2442 ;; otherwise use the current buffer because displaying
2443 ;; RFC822 parts calls this function too.
2444 (set-buffer gnus-original-article-buffer))
2446 (mail-narrow-to-head)
2447 (and gnus-article-x-face-command
2449 ;; Check whether this face is censored.
2450 (not (and gnus-article-x-face-too-ugly
2452 (setq from (message-fetch-field "from")))
2453 (string-match gnus-article-x-face-too-ugly
2455 (while (gnus-article-goto-header "X-Face")
2456 (push (mail-header-field-value) x-faces)))))
2458 ;; We display the face.
2459 (cond ((functionp gnus-article-x-face-command)
2460 ;; The command is a lisp function, so we call it.
2461 (mapc gnus-article-x-face-command x-faces))
2462 ((stringp gnus-article-x-face-command)
2463 ;; The command is a string, so we interpret the command
2464 ;; as a, well, command, and fork it off.
2465 (let ((process-connection-type nil))
2466 (set-process-query-on-exit-flag
2468 "article-x-face" nil shell-file-name
2469 shell-command-switch gnus-article-x-face-command)
2471 ;; Sending multiple EOFs to xv doesn't work,
2472 ;; so we only do a single external face.
2474 (insert (car x-faces))
2475 (process-send-region "article-x-face"
2476 (point-min) (point-max)))
2477 (process-send-eof "article-x-face")))
2479 (error "`%s' set to `%s' is not a function"
2480 gnus-article-x-face-command
2481 'gnus-article-x-face-command)))))))))
2483 (defun article-decode-mime-words ()
2484 "Decode all MIME-encoded words in the article."
2486 (gnus-with-article-buffer
2487 (let ((inhibit-point-motion-hooks t)
2488 (mail-parse-charset gnus-newsgroup-charset)
2489 (mail-parse-ignored-charsets
2490 (with-current-buffer gnus-summary-buffer
2491 gnus-newsgroup-ignored-charsets)))
2492 (mail-decode-encoded-word-region (point-min) (point-max)))))
2494 (defun article-decode-charset (&optional prompt)
2495 "Decode charset-encoded text in the article.
2496 If PROMPT (the prefix), prompt for a coding system to use."
2498 (let ((inhibit-point-motion-hooks t) (case-fold-search t)
2499 (inhibit-read-only t)
2500 (mail-parse-charset gnus-newsgroup-charset)
2501 (mail-parse-ignored-charsets
2502 (save-excursion (condition-case nil
2503 (set-buffer gnus-summary-buffer)
2505 gnus-newsgroup-ignored-charsets))
2506 ct cte ctl charset format)
2509 (article-narrow-to-head)
2510 (setq ct (message-fetch-field "Content-Type" t)
2511 cte (message-fetch-field "Content-Transfer-Encoding" t)
2512 ctl (and ct (mail-header-parse-content-type ct))
2515 (read-coding-system "Charset to decode: "))
2517 (mail-content-type-get ctl 'charset)))
2518 format (and ctl (mail-content-type-get ctl 'format)))
2520 (setq cte (mail-header-strip cte)))
2521 (if (and ctl (not (string-match "/" (car ctl))))
2523 (goto-char (point-max)))
2526 (narrow-to-region (point) (point-max))
2527 (when (and (eq mail-parse-charset 'gnus-decoded)
2528 (eq (mm-body-7-or-8) '8bit))
2529 ;; The text code could have been decoded.
2530 (setq charset mail-parse-charset))
2531 (when (and (or (not ctl)
2532 (equal (car ctl) "text/plain"))
2533 (not format)) ;; article with format will decode later.
2535 charset (and cte (intern (downcase
2536 (gnus-strip-whitespace cte))))
2539 (defun article-decode-encoded-words ()
2540 "Remove encoded-word encoding from headers."
2541 (let ((inhibit-point-motion-hooks t)
2542 (mail-parse-charset gnus-newsgroup-charset)
2543 (mail-parse-ignored-charsets
2544 (save-excursion (condition-case nil
2545 (set-buffer gnus-summary-buffer)
2547 gnus-newsgroup-ignored-charsets))
2548 (inhibit-read-only t)
2550 (goto-char (point-min))
2551 (when (search-forward "\n\n" nil 'move)
2558 (memq (char-after) '(?\t ? )))))
2559 (setq start (point))
2561 \\(?:Resent-\\)?\\(?:From\\|Cc\\|To\\|Bcc\\|\\(?:In-\\)?Reply-To\\|Sender\
2562 \\|Mail-Followup-To\\|Mail-Copies-To\\|Approved\\):")
2563 (funcall gnus-decode-address-function start end)
2564 (funcall gnus-decode-header-function start end))
2565 (goto-char (setq end start)))))
2567 (defun article-decode-group-name ()
2568 "Decode group names in Newsgroups, Followup-To and Xref headers."
2569 (let ((inhibit-point-motion-hooks t)
2570 (inhibit-read-only t)
2571 (method (gnus-find-method-for-group gnus-newsgroup-name))
2573 (when (and (or gnus-group-name-charset-method-alist
2574 gnus-group-name-charset-group-alist)
2575 (gnus-buffer-live-p gnus-original-article-buffer))
2577 (article-narrow-to-head)
2578 (dolist (header '("Newsgroups" "Followup-To" "Xref"))
2579 (with-current-buffer gnus-original-article-buffer
2580 (goto-char (point-min)))
2581 (setq regexp (concat "^" header
2582 ":\\([^\n]*\\(?:\n[\t ]+[^\n]+\\)*\\)\n"))
2583 (while (re-search-forward regexp nil t)
2584 (replace-match (save-match-data
2585 (gnus-decode-newsgroups
2586 ;; XXX how to use data in article buffer?
2587 (with-current-buffer gnus-original-article-buffer
2588 (re-search-forward regexp nil t)
2590 gnus-newsgroup-name method))
2592 (goto-char (point-min)))))))
2594 (autoload 'idna-to-unicode "idna")
2596 (defun article-decode-idna-rhs ()
2597 "Decode IDNA strings in RHS in various headers in current buffer.
2598 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2599 Mail-Reply-To: and Mail-Followup-To:."
2602 (let ((inhibit-point-motion-hooks t)
2603 (inhibit-read-only t))
2604 (article-narrow-to-head)
2605 (goto-char (point-min))
2606 (while (re-search-forward "@[^ \t\n\r,>]*\\(xn--[-A-Za-z0-9.]*\\)[ \t\n\r,>]" nil t)
2608 (when (save-match-data
2609 (and (setq ace (match-string 1))
2611 (and (re-search-backward "^[^ \t]" nil t)
2612 (looking-at "From\\|To\\|Cc\\|Reply-To\\|Mail-Reply-To\\|Mail-Followup-To")))
2613 (setq unicode (idna-to-unicode ace))))
2614 (unless (string= ace unicode)
2615 (replace-match unicode nil nil nil 1)))))))))
2617 (defun article-de-quoted-unreadable (&optional force read-charset)
2618 "Translate a quoted-printable-encoded article.
2619 If FORCE, decode the article whether it is marked as quoted-printable
2621 If READ-CHARSET, ask for a coding system."
2622 (interactive (list 'force current-prefix-arg))
2624 (let ((inhibit-read-only t) type charset)
2625 (if (gnus-buffer-live-p gnus-original-article-buffer)
2626 (with-current-buffer gnus-original-article-buffer
2628 (gnus-fetch-field "content-transfer-encoding"))
2629 (let* ((ct (gnus-fetch-field "content-type"))
2630 (ctl (and ct (mail-header-parse-content-type ct))))
2631 (setq charset (and ctl
2632 (mail-content-type-get ctl 'charset)))
2633 (if (stringp charset)
2634 (setq charset (intern (downcase charset)))))))
2636 (setq charset (read-coding-system "Charset: " charset)))
2638 (setq charset gnus-newsgroup-charset))
2640 (and type (let ((case-fold-search t))
2641 (string-match "quoted-printable" type))))
2643 (quoted-printable-decode-region
2644 (point) (point-max) (mm-charset-to-coding-system charset nil t))))))
2646 (defun article-de-base64-unreadable (&optional force read-charset)
2647 "Translate a base64 article.
2648 If FORCE, decode the article whether it is marked as base64 not.
2649 If READ-CHARSET, ask for a coding system."
2650 (interactive (list 'force current-prefix-arg))
2652 (let ((inhibit-read-only t) type charset)
2653 (if (gnus-buffer-live-p gnus-original-article-buffer)
2654 (with-current-buffer gnus-original-article-buffer
2656 (gnus-fetch-field "content-transfer-encoding"))
2657 (let* ((ct (gnus-fetch-field "content-type"))
2658 (ctl (and ct (mail-header-parse-content-type ct))))
2659 (setq charset (and ctl
2660 (mail-content-type-get ctl 'charset)))
2661 (if (stringp charset)
2662 (setq charset (intern (downcase charset)))))))
2664 (setq charset (read-coding-system "Charset: " charset)))
2666 (setq charset gnus-newsgroup-charset))
2668 (and type (let ((case-fold-search t))
2669 (string-match "base64" type))))
2672 (narrow-to-region (point) (point-max))
2673 (base64-decode-region (point-min) (point-max))
2674 (decode-coding-region
2675 (point-min) (point-max)
2676 (mm-charset-to-coding-system charset nil t)))))))
2678 (declare-function rfc1843-decode-region "rfc1843" (from to))
2680 (defun article-decode-HZ ()
2681 "Translate a HZ-encoded article."
2685 (let ((inhibit-read-only t))
2686 (rfc1843-decode-region (point-min) (point-max)))))
2688 (defun article-unsplit-urls ()
2689 "Remove the newlines that some other mailers insert into URLs."
2692 (let ((inhibit-read-only t))
2693 (goto-char (point-min))
2694 (while (re-search-forward
2695 "\\(\\(https?\\|ftp\\)://\\S-+\\) *\n\\(\\S-+\\)" nil t)
2696 (replace-match "\\1\\3" t)))
2697 (when (called-interactively-p 'any)
2698 (gnus-treat-article nil))))
2700 (defun article-wash-html ()
2701 "Format an HTML article."
2704 (buffer-read-only nil))
2705 (when (gnus-buffer-live-p gnus-original-article-buffer)
2706 (with-current-buffer gnus-original-article-buffer
2707 (setq handles (mm-dissect-buffer t t))))
2709 (delete-region (point) (point-max))
2710 (mm-enable-multibyte)
2711 (mm-inline-text-html handles)))
2713 (defvar gnus-article-browse-html-temp-list nil
2714 "List of temporary files created by `gnus-article-browse-html-parts'.
2715 Internal variable.")
2717 (defcustom gnus-article-browse-delete-temp 'ask
2718 "What to do with temporary files from `gnus-article-browse-html-parts'.
2719 If nil, don't delete temporary files. If it is t, delete them on
2720 exit from the summary buffer. If it is the symbol `file', query
2721 on each file, if it is `ask' ask once when exiting from the
2723 :group 'gnus-article
2724 :version "23.1" ;; No Gnus
2725 :type '(choice (const :tag "Don't delete" nil)
2726 (const :tag "Don't ask" t)
2727 (const :tag "Ask" ask)
2728 (const :tag "Ask for each file" file)))
2730 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2732 (defun gnus-article-browse-delete-temp-files (&optional how)
2733 "Delete temp-files created by `gnus-article-browse-html-parts'."
2734 (when (and gnus-article-browse-html-temp-list
2736 (or how (setq how gnus-article-browse-delete-temp))
2738 (let ((files (length gnus-article-browse-html-temp-list)))
2741 "Delete the temporary HTML file? "
2742 (format "Delete all %s temporary HTML files? "
2744 (setq gnus-article-browse-html-temp-list nil)))
2746 (dolist (file gnus-article-browse-html-temp-list)
2747 (cond ((file-directory-p file)
2748 (when (or (not (eq how 'file))
2751 "Delete temporary HTML file(s) in directory `%s'? "
2752 (file-name-as-directory file))))
2753 (gnus-delete-directory file)))
2754 ((file-exists-p file)
2755 (when (or (not (eq how 'file))
2757 (format "Delete temporary HTML file `%s'? " file)))
2758 (delete-file file)))))
2759 ;; Also remove file from the list when not deleted or if file doesn't
2761 (setq gnus-article-browse-html-temp-list nil))
2762 gnus-article-browse-html-temp-list)
2764 (defun gnus-article-browse-html-save-cid-content (cid handles directory)
2765 "Find CID content in HANDLES and save it in a file in DIRECTORY.
2766 Return file name relative to the parent of DIRECTORY."
2770 (dolist (handle handles)
2772 ((not (listp handle)))
2773 ;; Exclude broken handles that `gnus-summary-enter-digest-group'
2775 ((not (or (bufferp (car handle)) (stringp (car handle)))))
2776 ((equal (mm-handle-media-supertype handle) "multipart")
2777 (when (setq file (gnus-article-browse-html-save-cid-content
2778 cid handle directory))
2779 (throw 'found file)))
2780 ((equal (concat "<" cid ">") (mm-handle-id handle))
2781 (setq file (or (mm-handle-filename handle)
2783 (make-temp-name "cid")
2784 (car (rassoc (car (mm-handle-type handle))
2785 mailcap-mime-extensions))))
2786 afile (expand-file-name file directory))
2787 (mm-save-part-to-file handle afile)
2788 (throw 'found (concat (file-name-nondirectory
2789 (directory-file-name directory))
2792 (defun gnus-article-browse-html-parts (list &optional header)
2793 "View all \"text/html\" parts from LIST.
2794 Recurse into multiparts. The optional HEADER that should be a decoded
2795 message header will be added to the bodies of the \"text/html\" parts."
2796 ;; Internal function used by `gnus-article-browse-html-article'.
2797 (let (type file charset content cid-dir tmp-file showed)
2798 ;; Find and show the html-parts.
2799 (dolist (handle list)
2800 ;; If HTML, show it:
2801 (cond ((not (listp handle)))
2802 ((or (equal (car (setq type (mm-handle-type handle))) "text/html")
2803 (and (equal (car type) "message/external-body")
2805 (setq file (mm-handle-filename handle)))
2806 (or (mm-handle-cache handle)
2807 (condition-case code
2808 (progn (mm-extern-cache-contents handle) t)
2810 (gnus-message 3 "%s" (error-message-string code))
2811 (when (>= gnus-verbose 3) (sit-for 2))
2814 (setq handle (mm-handle-cache handle)
2815 type (mm-handle-type handle))
2816 (equal (car type) "text/html"))))
2817 (setq charset (mail-content-type-get type 'charset)
2818 content (mm-get-part handle))
2820 (if (eq charset 'gnus-decoded)
2821 (mm-enable-multibyte)
2822 (mm-disable-multibyte))
2824 ;; resolve cid contents
2825 (let ((case-fold-search t)
2826 st base regexp cid-file)
2827 (goto-char (point-min))
2828 (when (and (re-search-forward "<head[\t\n >]" nil t)
2830 (setq st (match-end 0))
2831 (re-search-forward "</head[\t\n >]" nil t))
2832 (re-search-backward "<base\
2833 \\(?:[\t\n ]+[^\t\n >]+\\)*[\t\n ]+href=\"\\([^\"]+\\)\"[^>]*>" st t))
2834 (setq base (match-string 1))
2835 (replace-match "<!--\\&-->")
2837 (dolist (tag '(("a" . "href") ("form" . "action")
2839 (setq regexp (concat "<" (car tag)
2840 "\\(?:[\t\n ]+[^\t\n >]+\\)*[\t\n ]+"
2841 (cdr tag) "=\"\\([^\"]+\\)"))
2842 (while (re-search-forward regexp nil t)
2846 (url-expand-file-name (match-string 1)
2848 (error (match-string 1)))
2849 (delete-region (match-beginning 1)
2852 (while (re-search-forward "\
2853 <img[\t\n ]+\\(?:[^\t\n >]+[\t\n ]+\\)*src=\"\\(cid:\\([^\"]+\\)\\)\""
2856 (setq cid-dir (make-temp-file "cid" t))
2857 (add-to-list 'gnus-article-browse-html-temp-list cid-dir))
2860 (when (setq cid-file
2861 (gnus-article-browse-html-save-cid-content
2863 (with-current-buffer gnus-article-buffer
2864 gnus-article-mime-handles)
2866 (replace-match cid-file nil nil nil 1))))
2867 (unless content (setq content (buffer-string))))
2868 (when (or charset header (not file))
2869 (setq tmp-file (make-temp-file
2870 ;; Do we need to care for 8.3 filenames?
2871 "mm-" nil ".html")))
2872 ;; Add a meta html tag to specify charset and a header.
2875 (let (title eheader body hcharset coding)
2877 (mm-enable-multibyte)
2878 (setq case-fold-search t)
2879 (insert header "\n")
2880 (setq title (message-fetch-field "subject"))
2881 (goto-char (point-min))
2882 (while (re-search-forward "\\(<\\)\\|\\(>\\)\\|\\(&\\)\\|\n"
2884 (replace-match (cond ((match-beginning 1) "<")
2885 ((match-beginning 2) ">")
2886 ((match-beginning 3) "&")
2888 (goto-char (point-min))
2889 (while (re-search-forward "^[\t ]+" nil t)
2892 (delete-region (match-beginning 0)
2895 (goto-char (point-min))
2896 (insert "<div align=\"left\">\n")
2897 (goto-char (point-max))
2898 (insert "</div>\n<hr>\n")
2899 ;; We have to examine charset one by one since
2900 ;; charset specified in parts might be different.
2901 (if (eq charset 'gnus-decoded)
2902 (setq charset 'utf-8
2903 eheader (encode-coding-string (buffer-string)
2906 (encode-coding-string title charset))
2907 body (encode-coding-string content charset))
2908 (setq hcharset (mm-find-mime-charset-region (point-min)
2910 (cond ((= (length hcharset) 1)
2911 (setq hcharset (car hcharset)
2912 coding (mm-charset-to-coding-system
2914 ((> (length hcharset) 1)
2915 (setq hcharset 'utf-8
2921 (mm-charset-to-coding-system charset
2923 (if (eq coding body)
2924 (setq eheader (encode-coding-string
2925 (buffer-string) coding)
2927 (encode-coding-string
2930 (setq charset 'utf-8
2931 eheader (encode-coding-string
2932 (buffer-string) charset)
2934 (encode-coding-string
2936 body (encode-coding-string
2937 (decode-coding-string
2940 (setq charset hcharset
2941 eheader (encode-coding-string
2942 (buffer-string) coding)
2944 (encode-coding-string
2947 (setq eheader (string-as-unibyte (buffer-string))
2950 (mm-disable-multibyte)
2953 (mm-add-meta-html-tag handle charset t))
2955 (goto-char (point-min))
2956 (unless (search-forward "<title>" nil t)
2957 (re-search-forward "<head>\\s-*" nil t)
2958 (insert "<title>" title "</title>\n")))
2959 (goto-char (point-min))
2960 (or (re-search-forward
2961 "<body\\(?:\\s-+[^>]+\\|\\s-*\\)>\\s-*" nil t)
2963 "</head\\(?:\\s-+[^>]+\\|\\s-*\\)>\\s-*" nil t))
2965 (mm-write-region (point-min) (point-max)
2966 tmp-file nil nil nil 'binary t))))
2968 (mm-with-unibyte-buffer
2969 (insert (if (eq charset 'gnus-decoded)
2970 (encode-coding-string content
2971 (setq charset 'utf-8))
2973 (if (or (mm-add-meta-html-tag handle charset)
2975 (mm-write-region (point-min) (point-max)
2976 tmp-file nil nil nil 'binary t)
2977 (setq tmp-file nil))))
2979 (mm-save-part-to-file handle tmp-file)))
2981 (add-to-list 'gnus-article-browse-html-temp-list tmp-file))
2982 (add-hook 'gnus-summary-prepare-exit-hook
2983 'gnus-article-browse-delete-temp-files)
2984 (add-hook 'gnus-exit-gnus-hook
2986 (gnus-article-browse-delete-temp-files t)))
2987 ;; FIXME: Warn if there's an <img> tag?
2988 (browse-url-of-file (or tmp-file (expand-file-name file)))
2990 ;; If multipart, recurse
2991 ((equal (mm-handle-media-supertype handle) "multipart")
2992 (when (gnus-article-browse-html-parts handle header)
2994 ((equal (mm-handle-media-type handle) "message/rfc822")
2995 (mm-with-multibyte-buffer
2996 (mm-insert-part handle)
2997 (setq handle (mm-dissect-buffer t t))
2998 (when (and (bufferp (car handle))
2999 (stringp (car (mm-handle-type handle))))
3000 (setq handle (list handle)))
3002 (article-decode-encoded-words)
3003 (let ((gnus-visible-headers
3004 (or (get 'gnus-visible-headers 'standard-value)
3005 gnus-visible-headers)))
3006 (article-hide-headers))
3007 (goto-char (point-min))
3008 (search-forward "\n\n" nil 'move)
3009 (skip-chars-backward "\t\n ")
3010 (setq header (buffer-substring (point-min) (point)))))
3012 (gnus-article-browse-html-parts handle header)
3013 (mm-destroy-parts handle))
3017 (defun gnus-article-browse-html-article (&optional arg)
3018 "View \"text/html\" parts of the current article with a WWW browser.
3019 Inline images embedded in a message using the cid scheme, as they are
3020 generally considered to be safe, will be processed properly.
3021 The message header is added to the beginning of every html part unless
3022 the prefix argument ARG is given.
3024 Warning: Spammers use links to images (using the http scheme) in HTML
3025 articles to verify whether you have read the message. As
3026 `gnus-article-browse-html-article' passes the HTML content to the
3027 browser without eliminating these \"web bugs\" you should only
3028 use it for mails from trusted senders.
3030 If you always want to display HTML parts in the browser, set
3031 `mm-text-html-renderer' to nil.
3033 This command creates temporary files to pass HTML contents including
3034 images if any to the browser, and deletes them when exiting the group
3036 ;; Cf. `mm-w3m-safe-url-regexp'
3039 (gnus-summary-show-article)
3040 (let ((gnus-visible-headers (or (get 'gnus-visible-headers 'standard-value)
3041 gnus-visible-headers))
3042 ;; As we insert a <hr>, there's no need for the body boundary.
3043 (gnus-treat-body-boundary nil))
3044 (gnus-summary-show-article)))
3045 (with-current-buffer gnus-article-buffer
3046 (let ((header (unless arg
3049 (buffer-substring-no-properties
3050 (goto-char (point-min))
3051 (if (search-forward "\n\n" nil t)
3053 (goto-char (point-max))
3054 (skip-chars-backward "\t\n ")
3057 (set-buffer gnus-original-article-buffer)
3058 (setq parts (mm-dissect-buffer t t))
3059 ;; If singlepart, enforce a list.
3060 (when (and (bufferp (car parts))
3061 (stringp (car (mm-handle-type parts))))
3062 (setq parts (list parts)))
3064 (unless (gnus-article-browse-html-parts parts header)
3065 (gnus-error 3 "Mail doesn't contain a \"text/html\" part!"))
3066 (mm-destroy-parts parts)
3068 (gnus-summary-show-article)))))
3070 (defun article-hide-list-identifiers ()
3071 "Remove list identifiers from the Subject header.
3072 The `gnus-list-identifiers' variable specifies what to do."
3074 (let ((inhibit-point-motion-hooks t)
3075 (regexp (gnus-group-get-list-identifiers gnus-newsgroup-name))
3076 (inhibit-read-only t))
3080 (article-narrow-to-head)
3081 (goto-char (point-min))
3082 (while (re-search-forward
3083 (concat "^Subject: +\\(R[Ee]: +\\)*\\(" regexp " *\\)")
3085 (delete-region (match-beginning 2) (match-end 0))
3086 (beginning-of-line))
3087 (when (re-search-forward
3088 "^Subject: +\\(\\(R[Ee]: +\\)+\\)R[Ee]: +" nil t)
3089 (delete-region (match-beginning 1) (match-end 1))))))))
3091 (defun article-hide-pem (&optional arg)
3092 "Toggle hiding of any PEM headers and signatures in the current article.
3093 If given a negative prefix, always show; if given a positive prefix,
3095 (interactive (gnus-article-hidden-arg))
3096 (unless (gnus-article-check-hidden-text 'pem arg)
3098 (let ((inhibit-read-only t) end)
3099 (goto-char (point-min))
3100 ;; Hide the horrendously ugly "header".
3101 (when (and (search-forward
3102 "\n-----BEGIN PRIVACY-ENHANCED MESSAGE-----\n"
3104 (setq end (1+ (match-beginning 0))))
3105 (gnus-add-wash-type 'pem)
3106 (gnus-article-hide-text-type
3108 (if (search-forward "\n\n" nil t)
3112 ;; Hide the trailer as well
3113 (when (search-forward "\n-----END PRIVACY-ENHANCED MESSAGE-----\n"
3115 (gnus-article-hide-text-type
3116 (match-beginning 0) (match-end 0) 'pem)))))))
3118 (defun article-strip-banner ()
3119 "Strip the banners specified by the `banner' group parameter and by
3120 `gnus-article-address-banner-alist'."
3124 (let ((inhibit-point-motion-hooks t))
3125 (when (gnus-parameter-banner gnus-newsgroup-name)
3126 (article-really-strip-banner
3127 (gnus-parameter-banner gnus-newsgroup-name)))
3128 (when gnus-article-address-banner-alist
3129 ;; Note that the From header is decoded here, so it is
3130 ;; required that the *-extract-address-components function
3131 ;; supports non-ASCII text.
3132 (let ((from (save-restriction
3134 (article-narrow-to-head)
3135 (mail-fetch-field "from"))))
3138 (cadr (funcall gnus-extract-address-components
3141 (dolist (pair gnus-article-address-banner-alist)
3142 (when (string-match (car pair) from)
3144 (article-really-strip-banner (cdr pair)))))))))))))
3146 (defun article-really-strip-banner (banner)
3147 "Strip the banner specified by the argument."
3150 (let ((inhibit-point-motion-hooks t)
3151 (gnus-signature-limit nil)
3152 (inhibit-read-only t))
3155 ((eq banner 'signature)
3156 (when (gnus-article-narrow-to-signature)
3159 (delete-region (point) (point-max))))
3161 (if (setq banner (cdr (assq banner gnus-article-banner-alist)))
3162 (while (re-search-forward banner nil t)
3163 (delete-region (match-beginning 0) (match-end 0)))))
3165 (while (re-search-forward banner nil t)
3166 (delete-region (match-beginning 0) (match-end 0)))))))))
3168 (defun article-babel ()
3169 "Translate article using an online translation service."
3172 (gnus-with-article-buffer
3173 (when (article-goto-body)
3174 (let* ((start (point))
3176 (orig (buffer-substring start end))
3177 (trans (babel-as-string orig)))
3179 (narrow-to-region start end)
3180 (delete-region start end)
3183 (defun article-hide-signature (&optional arg)
3184 "Hide the signature in the current article.
3185 If given a negative prefix, always show; if given a positive prefix,
3187 (interactive (gnus-article-hidden-arg))
3188 (unless (gnus-article-check-hidden-text 'signature arg)
3191 (let ((inhibit-read-only t))
3192 (when (gnus-article-narrow-to-signature)
3193 (gnus-article-hide-text-type
3194 (point-min) (point-max) 'signature))))))
3195 (gnus-set-mode-line 'article))
3197 (defun article-strip-headers-in-body ()
3198 "Strip offensive headers from bodies."
3202 (let ((case-fold-search t))
3203 (when (looking-at "x-no-archive:")
3204 (gnus-delete-line)))))
3206 (defun article-strip-leading-blank-lines ()
3207 "Remove all blank lines from the beginning of the article."
3210 (let ((inhibit-point-motion-hooks t)
3211 (inhibit-read-only t))
3212 (when (article-goto-body)
3213 (while (and (not (eobp))
3214 (looking-at "[ \t]*$"))
3215 (gnus-delete-line))))))
3217 (defun article-narrow-to-head ()
3218 "Narrow the buffer to the head of the message.
3219 Point is left at the beginning of the narrowed-to region."
3221 (goto-char (point-min))
3223 ;; Absolutely no headers displayed.
3227 ((search-forward "\n\n" nil 1)
3229 ;; Nothing but headers.
3232 (goto-char (point-min)))
3234 (defun article-goto-body ()
3235 "Place point at the start of the body."
3236 (goto-char (point-min))
3238 ;; This variable is only bound when dealing with separate
3240 (article-goto-body-goes-to-point-min-p
3242 ((search-forward "\n\n" nil t)
3245 (goto-char (point-max))
3248 (defun article-strip-multiple-blank-lines ()
3249 "Replace consecutive blank lines with one empty line."
3252 (let ((inhibit-point-motion-hooks t)
3253 (inhibit-read-only t))
3254 ;; First make all blank lines empty.
3256 (while (re-search-forward "^[ \t]+$" nil t)
3257 (unless (gnus-annotation-in-region-p
3258 (match-beginning 0) (match-end 0))
3259 (replace-match "" nil t)))
3260 ;; Then replace multiple empty lines with a single empty line.
3262 (while (re-search-forward "\n\n\\(\n+\\)" nil t)
3263 (unless (gnus-annotation-in-region-p
3264 (match-beginning 0) (match-end 0))
3265 (delete-region (match-beginning 1) (match-end 1)))))))
3267 (defun article-strip-leading-space ()
3268 "Remove all white space from the beginning of the lines in the article."
3271 (let ((inhibit-point-motion-hooks t)
3272 (inhibit-read-only t))
3274 (while (re-search-forward "^[ \t]+" nil t)
3275 (replace-match "" t t)))))
3277 (defun article-strip-trailing-space ()
3278 "Remove all white space from the end of the lines in the article."
3281 (let ((inhibit-point-motion-hooks t)
3282 (inhibit-read-only t))
3284 (while (re-search-forward "[ \t]+$" nil t)
3285 (replace-match "" t t)))))
3287 (defun article-strip-blank-lines ()
3288 "Strip leading, trailing and multiple blank lines."
3290 (article-strip-leading-blank-lines)
3291 (article-remove-trailing-blank-lines)
3292 (article-strip-multiple-blank-lines))
3294 (defun article-strip-all-blank-lines ()
3295 "Strip all blank lines."
3298 (let ((inhibit-point-motion-hooks t)
3299 (inhibit-read-only t))
3301 (while (re-search-forward "^[ \t]*\n" nil t)
3302 (replace-match "" t t)))))
3304 (defun gnus-article-narrow-to-signature ()
3305 "Narrow to the signature; return t if a signature is found, else nil."
3306 (let ((inhibit-point-motion-hooks t))
3307 (when (gnus-article-search-signature)
3309 ;; Check whether we have some limits to what we consider
3310 ;; to be a signature.
3311 (let ((limits (if (listp gnus-signature-limit) gnus-signature-limit
3312 (list gnus-signature-limit)))
3314 (while (setq limit (pop limits))
3315 (if (or (and (integerp limit)
3316 (< (- (point-max) (point)) limit))
3318 (< (count-lines (point) (point-max)) limit))
3319 (and (functionp limit)
3321 (and (stringp limit)
3322 (not (re-search-forward limit nil t))))
3323 () ; This limit did not succeed.
3327 (narrow-to-region (point) (point-max))
3330 (defun gnus-article-search-signature ()
3331 "Search the current buffer for the signature separator.
3332 Put point at the beginning of the signature separator."
3333 (let ((cur (point)))
3334 (goto-char (point-max))
3335 (if (if (stringp gnus-signature-separator)
3336 (re-search-backward gnus-signature-separator nil t)
3337 (let ((seps gnus-signature-separator))
3339 (not (re-search-backward (car seps) nil t)))
3346 (defun gnus-article-hidden-arg ()
3347 "Return the current prefix arg as a number, or 0 if no prefix."
3348 (list (if current-prefix-arg
3349 (prefix-numeric-value current-prefix-arg)
3352 (defun gnus-article-check-hidden-text (type arg)
3353 "Return nil if hiding is necessary.
3354 Arg can be nil or a number. nil and positive means hide, negative
3355 means show, 0 means toggle."
3358 (let ((hide (gnus-article-hidden-text-p type)))
3364 (gnus-article-show-hidden-text type)
3367 (if (eq hide 'hidden)
3369 (gnus-article-show-hidden-text type)
3373 (defun gnus-article-hidden-text-p (type)
3374 "Say whether the current buffer contains hidden text of type TYPE."
3375 (let ((pos (text-property-any (point-min) (point-max) 'article-type type)))
3377 (not (get-text-property pos 'invisible))
3378 (not (get-text-property pos 'dummy-invisible)))
3380 (text-property-any (1+ pos) (point-max) 'article-type type)))
3385 (defun gnus-article-show-hidden-text (type &optional _dummy)
3386 "Show all hidden text of type TYPE.
3387 Originally it is hide instead of DUMMY."
3388 (let ((inhibit-read-only t)
3389 (inhibit-point-motion-hooks t))
3390 (gnus-remove-text-properties-when
3392 (point-min) (point-max)
3393 (cons 'article-type (cons type
3394 gnus-hidden-properties)))
3395 (gnus-delete-wash-type type)))
3397 (defconst article-time-units
3398 `((year . ,(* 365.25 24 60 60))
3399 (week . ,(* 7 24 60 60))
3400 (day . ,(* 24 60 60))
3404 "Mapping from time units to seconds.")
3406 (defun gnus-article-forward-header ()
3407 "Move point to the start of the next header.
3408 If the current header is a continuation header, this can be several
3413 (if (looking-at "[ \t]+[^ \t]")
3417 (defun article-treat-date ()
3418 (article-date-ut (if (gnus-buffer-live-p gnus-summary-buffer)
3419 (with-current-buffer gnus-summary-buffer
3420 gnus-article-date-headers)
3421 gnus-article-date-headers)
3424 (defun article-date-ut (&optional type _highlight date-position)
3425 "Convert DATE date to TYPE in the current article.
3426 The default type is `ut'. See `gnus-article-date-headers' for
3428 (interactive (list 'ut t))
3429 (let* ((case-fold-search t)
3430 (inhibit-read-only t)
3431 (inhibit-point-motion-hooks t)
3432 (visible-date (mail-fetch-field "Date"))
3433 pos date bface eface)
3437 (goto-char date-position)
3438 (setq date (get-text-property (point) 'original-date))
3439 (when (looking-at "[^:]+:[\t ]*")
3440 (setq bface (get-text-property (match-beginning 0) 'face)
3441 eface (get-text-property (match-end 0) 'face)))
3442 (delete-region (point)
3444 (gnus-article-forward-header)
3446 (article-transform-date date type bface eface))
3449 (goto-char (point-min))
3450 (while (or (get-text-property (setq pos (point)) 'original-date)
3451 (and (setq pos (next-single-property-change
3452 (point) 'original-date))
3454 (narrow-to-region pos (if (search-forward "\n\n" nil t)
3455 (1+ (match-beginning 0))
3457 (while (setq pos (text-property-not-all pos (point-max)
3458 'gnus-date-type nil))
3459 (setq date (get-text-property pos 'original-date))
3461 (when (looking-at "[^:]+:[\t ]*")
3462 (setq bface (get-text-property (match-beginning 0) 'face)
3463 eface (get-text-property (match-end 0) 'face)))
3464 (delete-region pos (or (text-property-any pos (point-max)
3465 'gnus-date-type nil)
3467 (unless date ;; the 1st time
3468 (goto-char (point-min))
3469 (while (re-search-forward "^Date:[\t ]*" nil t)
3470 (setq date (get-text-property (match-beginning 0)
3472 bface (get-text-property (match-beginning 0) 'face)
3473 eface (get-text-property (match-end 0) 'face))
3474 (delete-region (point-at-bol) (progn
3475 (gnus-article-forward-header)
3477 (when (and (not date)
3479 (setq date visible-date))
3481 (article-transform-date date type bface eface))
3482 (goto-char (point-max))
3485 (defun article-transform-date (date type bface eface)
3486 (dolist (this-type (cond
3496 (add-text-properties
3499 (insert (article-make-date-line date (or this-type 'ut)) "\n")
3501 (list 'original-date date 'gnus-date-type this-type))))
3504 "\\([^:]+:\\)[\t ]*\\(\\(?:[^\t\n ]+[\t ]+\\)*[^\t\n ]+\\)?")
3505 (put-text-property (match-beginning 1) (match-end 1) 'face bface)
3506 (when (match-beginning 2)
3507 (put-text-property (match-beginning 2) (match-end 2) 'face eface))
3508 (while (and (zerop (forward-line 1))
3509 (looking-at "[\t ]+\\(\\(?:[^\t\n ]+[\t ]+\\)*[^\t\n ]+\\)?"))
3510 (when (match-beginning 1)
3511 (put-text-property (match-beginning 1) (match-end 1) 'face eface))))))
3513 (defun article-make-date-line (date type)
3514 "Return a DATE line of TYPE."
3515 (unless (memq type '(local ut original user-defined iso8601 lapsed english
3517 (error "Unknown conversion type: %s" type))
3519 (let ((time (ignore-errors (date-to-time date))))
3521 ;; Convert to the local timezone.
3523 (concat "Date: " (message-make-date time)))
3524 ;; Convert to Universal Time.
3529 (let* ((e (parse-time-string date))
3530 (tm (apply 'encode-time e))
3532 (ls (- (cadr tm) (car (current-time-zone time)))))
3533 (cond ((< ls 0) (list (1- ms) (+ ls 65536)))
3534 ((> ls 65535) (list (1+ ms) (- ls 65536)))
3538 ;; Get the original date from the article.
3539 ((eq type 'original)
3540 (concat "Date: " (if (string-match "\n+$" date)
3541 (substring date 0 (match-beginning 0))
3543 ;; Let the user define the format.
3544 ((eq type 'user-defined)
3545 (let ((format (or (condition-case nil
3546 (with-current-buffer gnus-summary-buffer
3547 gnus-article-time-format)
3549 gnus-article-time-format)))
3550 (if (functionp format)
3551 (funcall format time)
3552 (concat "Date: " (format-time-string format time)))))
3555 (let ((tz (car (current-time-zone time))))
3558 (format-time-string "%Y%m%dT%H%M%S" time)
3559 (format "%s%02d%02d"
3560 (if (> tz 0) "+" "-") (/ (abs tz) 3600)
3561 (/ (% (abs tz) 3600) 60)))))
3562 ;; Do a lapsed format.
3564 (concat "Date: " (article-lapsed-string time)))
3565 ;; A combined date/lapsed format.
3566 ((eq type 'combined-lapsed)
3567 (let ((date-string (article-make-date-line date 'original))
3573 (concat " (" (article-lapsed-string time segments) ")"))
3574 (> (+ (length date-string)
3575 (length lapsed-string))
3578 (setq segments (1- segments)))
3580 (concat date-string lapsed-string)
3582 ;; Display the date in proper English
3584 (let ((dtime (decode-time time)))
3587 (number-to-string (nth 3 dtime))
3588 (let ((digit (% (nth 3 dtime) 10)))
3590 ((memq (nth 3 dtime) '(11 12 13)) "th")
3596 (nth (1- (nth 4 dtime)) gnus-english-month-names)
3598 (number-to-string (nth 5 dtime))
3600 (format "%02d" (nth 2 dtime))
3602 (format "%02d" (nth 1 dtime)))))))
3604 (format "Date: %s (from Gnus)" date))))
3606 (defun article-lapsed-string (time &optional max-segments)
3607 ;; If the date is seriously mangled, the timezone functions are
3608 ;; liable to bug out, so we ignore all errors.
3609 (let* ((now (current-time))
3610 (real-time (subtract-time now time))
3611 (real-sec (and real-time
3612 (+ (* (float (car real-time)) 65536)
3614 (sec (and real-time (abs real-sec)))
3617 (unless max-segments
3618 (setq max-segments (length article-time-units)))
3626 ;; This is a bit convoluted, but basically we go
3627 ;; through the time units for years, weeks, etc,
3628 ;; and divide things to see whether that results
3629 ;; in positive answers.
3632 (if (or (zerop (setq num (ffloor (/ sec (cdr unit)))))
3633 (>= segments max-segments))
3634 ;; The (remaining) seconds are too few to
3635 ;; be divided into this time unit.
3637 ;; It's big enough, so we output it.
3638 (setq sec (- sec (* num (cdr unit))))
3640 (concat (if prev ", " "") (int-to-string
3642 " " (symbol-name (car unit))
3643 (if (> num 1) "s" ""))
3645 segments (1+ segments)))))
3646 article-time-units "")
3647 ;; If dates are odd, then it might appear like the
3648 ;; article was sent in the future.
3651 " in the future"))))))
3653 (defun article-date-local (&optional highlight)
3654 "Convert the current article date to the local timezone."
3655 (interactive (list t))
3656 (article-date-ut 'local highlight))
3658 (defun article-date-english (&optional highlight)
3659 "Convert the current article date to something that is proper English."
3660 (interactive (list t))
3661 (article-date-ut 'english highlight))
3663 (defun article-date-original (&optional highlight)
3664 "Convert the current article date to what it was originally.
3665 This is only useful if you have used some other date conversion
3666 function and want to see what the date was before converting."
3667 (interactive (list t))
3668 (article-date-ut 'original highlight))
3670 (defun article-date-lapsed (&optional highlight)
3671 "Convert the current article date to time lapsed since it was sent."
3672 (interactive (list t))
3673 (article-date-ut 'lapsed highlight))
3675 (defun article-date-combined-lapsed (&optional highlight)
3676 "Convert the current article date to time lapsed since it was sent."
3677 (interactive (list t))
3678 (article-date-ut 'combined-lapsed highlight))
3680 (defun article-update-date-lapsed ()
3681 "Function to be run from a timer to update the lapsed time line."
3683 (let ((buffer (current-buffer)))
3687 (set-buffer (window-buffer w))
3688 (when (derived-mode-p 'gnus-article-mode)
3689 (let ((old-line (count-lines (point-min) (point)))
3690 (old-column (- (point) (line-beginning-position)))
3691 (window-start (window-start w))
3694 (while (setq pos (text-property-not-all pos (point-max)
3695 'gnus-date-type nil))
3696 (setq next (or (next-single-property-change pos
3699 (setq type (get-text-property pos 'gnus-date-type))
3700 (when (memq type '(lapsed combined-lapsed user-defined))
3701 (article-date-ut type t pos)
3702 (setq end (or (next-single-property-change pos
3706 (if (/= window-start next)
3707 (setq window-start nil)
3708 (set-window-start w end)))
3711 (goto-char (point-min))
3712 (when (> old-column 0)
3713 (setq old-line (1- old-line)))
3714 (forward-line old-line)
3716 (when (> (current-column) old-column)
3718 (forward-char old-column)))))
3720 (set-buffer buffer))))
3722 (defun gnus-start-date-timer (&optional n)
3723 "Start a timer to update the Date headers in the article buffers.
3724 The numerical prefix says how frequently (in seconds) the function
3729 (gnus-stop-date-timer)
3730 (setq article-lapsed-timer
3731 (run-at-time 1 n 'article-update-date-lapsed)))
3733 (defun gnus-stop-date-timer ()
3734 "Stop the Date timer."
3736 (when article-lapsed-timer
3737 (nnheader-cancel-timer article-lapsed-timer)
3738 (setq article-lapsed-timer nil)))
3740 (defun article-date-user (&optional highlight)
3741 "Convert the current article date to the user-defined format.
3742 This format is defined by the `gnus-article-time-format' variable."
3743 (interactive (list t))
3744 (article-date-ut 'user highlight))
3746 (defun article-date-iso8601 (&optional highlight)
3747 "Convert the current article date to ISO8601."
3748 (interactive (list t))
3749 (article-date-ut 'iso8601 highlight))
3751 (defmacro gnus-article-save-original-date (&rest forms)
3752 "Save the original date as a text property and evaluate FORMS."
3753 `(let* ((case-fold-search t)
3755 (goto-char (point-min))
3756 (when (and (re-search-forward "^date:[\t\n ]+" nil t)
3759 (date (when (and start
3760 (re-search-forward "[\t ]*\n\\(?:[^\t ]\\|\\'\\)"
3762 (buffer-substring-no-properties start
3763 (match-beginning 0)))))
3764 (goto-char (point-max))
3765 (skip-chars-backward "\n")
3766 (put-text-property (point-min) (point) 'original-date date)
3768 (goto-char (point-max))
3769 (skip-chars-backward "\n")
3770 (put-text-property (point-min) (point) 'original-date date)))
3772 ;; (defun article-show-all ()
3773 ;; "Show all hidden text in the article buffer."
3776 ;; (let ((inhibit-read-only t))
3777 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3779 (defun article-remove-leading-whitespace ()
3780 "Remove excessive whitespace from all headers."
3784 (let ((inhibit-read-only t))
3785 (article-narrow-to-head)
3786 (goto-char (point-min))
3787 (while (re-search-forward "^[^ :]+: \\([ \t]+\\)" nil t)
3788 (delete-region (match-beginning 1) (match-end 1)))))))
3790 (defun article-emphasize (&optional arg)
3791 "Emphasize text according to `gnus-emphasis-alist'."
3792 (interactive (gnus-article-hidden-arg))
3793 (unless (gnus-article-check-hidden-text 'emphasis arg)
3797 (with-current-buffer gnus-summary-buffer
3798 gnus-article-emphasis-alist)
3800 gnus-emphasis-alist))
3801 (inhibit-read-only t)
3802 (props (append '(article-type emphasis)
3803 gnus-hidden-properties))
3804 regexp elem beg invisible visible face)
3807 (while (setq elem (pop alist))
3809 (setq regexp (car elem)
3810 invisible (nth 1 elem)
3811 visible (nth 2 elem)
3813 (while (re-search-forward regexp nil t)
3814 (when (and (match-beginning visible) (match-beginning invisible))
3815 (gnus-article-hide-text
3816 (match-beginning invisible) (match-end invisible) props)
3817 (gnus-article-unhide-text-type
3818 (match-beginning visible) (match-end visible) 'emphasis)
3819 (gnus-put-overlay-excluding-newlines
3820 (match-beginning visible) (match-end visible) 'face face)
3821 (gnus-add-wash-type 'emphasis)
3822 (goto-char (match-end invisible)))))))))
3824 (defun gnus-article-setup-highlight-words (&optional highlight-words)
3825 "Setup newsgroup emphasis alist."
3826 (unless gnus-article-emphasis-alist
3827 (let ((name (and gnus-newsgroup-name
3828 (gnus-group-real-name gnus-newsgroup-name))))
3829 (make-local-variable 'gnus-article-emphasis-alist)
3830 (setq gnus-article-emphasis-alist
3832 (let ((alist gnus-group-highlight-words-alist) elem highlight)
3833 (while (setq elem (pop alist))
3834 (when (and name (string-match (car elem) name))
3836 highlight (copy-sequence (cdr elem)))))
3838 (copy-sequence highlight-words)
3839 (if gnus-newsgroup-name
3840 (copy-sequence (gnus-group-find-parameter
3841 gnus-newsgroup-name 'highlight-words t)))
3842 gnus-emphasis-alist)))))
3844 (defvar gnus-summary-article-menu)
3845 (defvar gnus-summary-post-menu)
3847 ;;; Saving functions.
3849 (defun gnus-article-save (save-buffer file &optional num)
3850 "Save the currently selected article."
3851 (when (or (get gnus-default-article-saver :headers)
3852 (not gnus-save-all-headers))
3853 ;; Remove headers according to `gnus-saved-headers' or the value
3854 ;; of the `:headers' property that the saver function might have.
3855 (let ((gnus-visible-headers
3856 (or (symbol-value (get gnus-default-article-saver :headers))
3857 gnus-saved-headers gnus-visible-headers))
3858 ;; Ignore group parameter. See `article-hide-headers'.
3859 (gnus-summary-buffer nil))
3860 (with-current-buffer save-buffer
3861 (article-hide-headers 1 t))))
3862 (save-window-excursion
3863 (if (not gnus-default-article-saver)
3864 (error "No default saver is defined")
3865 ;; !!! Magic! The saving functions all save
3866 ;; `gnus-save-article-buffer' (or so they think), but we
3867 ;; bind that variable to our save-buffer.
3868 (set-buffer gnus-article-buffer)
3869 (let* ((gnus-save-article-buffer save-buffer)
3872 ((not gnus-prompt-before-saving) 'default)
3873 ((eq gnus-prompt-before-saving 'always) nil)
3875 (gnus-number-of-articles-to-be-saved
3876 (when (eq gnus-prompt-before-saving t)
3878 (set-buffer gnus-article-current-summary)
3879 (funcall gnus-default-article-saver filename)))))
3881 (defun gnus-read-save-file-name (prompt &optional filename
3882 function group headers variable
3885 (funcall function group headers (symbol-value variable)))
3890 ((eq filename 'default)
3896 (when (symbol-value dir-var)
3897 (setq default-name (expand-file-name
3898 (file-name-nondirectory default-name)
3899 (symbol-value dir-var))))
3900 (let* ((split-name (gnus-get-split-value gnus-split-methods))
3903 (if (and gnus-number-of-articles-to-be-saved
3904 (> gnus-number-of-articles-to-be-saved 1))
3905 (format "these %d articles"
3906 gnus-number-of-articles-to-be-saved)
3909 ;; Let the split methods have their say.
3911 ;; No split name was found.
3914 (concat prompt " (default "
3915 (file-name-nondirectory default-name) "): ")
3916 (file-name-directory default-name)
3918 ;; A single group name is returned.
3919 ((stringp split-name)
3921 (funcall function split-name headers
3922 (symbol-value variable)))
3924 (concat prompt " (default "
3925 (file-name-nondirectory default-name) "): ")
3926 (file-name-directory default-name)
3928 ;; A single split name was found
3929 ((= 1 (length split-name))
3930 (let* ((name (expand-file-name
3932 gnus-article-save-directory))
3933 (dir (cond ((file-directory-p name)
3934 (file-name-as-directory name))
3935 ((file-exists-p name) name)
3936 (t gnus-article-save-directory))))
3938 (concat prompt " (default " name "): ")
3940 ;; A list of splits was found.
3942 (setq split-name (nreverse split-name))
3944 (let ((file-name-history
3945 (nconc split-name file-name-history)))
3949 (concat prompt " (`M-p' for defaults): ")
3950 gnus-article-save-directory
3952 gnus-article-save-directory)))
3953 (car (push result file-name-history)))))))
3954 ;; Create the directory.
3955 (gnus-make-directory (file-name-directory file))
3956 ;; If we have read a directory, we append the default file name.
3957 (when (file-directory-p file)
3958 (setq file (expand-file-name (file-name-nondirectory
3960 (file-name-as-directory file))))
3961 ;; Possibly translate some characters.
3962 (nnheader-translate-file-chars file))))))
3963 (gnus-make-directory (file-name-directory result))
3965 (set variable result))
3967 (set dir-var (file-name-directory result)))
3970 (defun gnus-article-archive-name (_group)
3971 "Return the first instance of an \"Archive-name\" in the current buffer."
3972 (let ((case-fold-search t))
3973 (when (re-search-forward "archive-name: *\\([^ \n\t]+\\)[ \t]*$" nil t)
3974 (nnheader-concat gnus-article-save-directory
3975 (match-string 1)))))
3977 (defun gnus-article-nndoc-name (group)
3978 "If GROUP is an nndoc group, return the name of the parent group."
3979 (when (eq (car (gnus-find-method-for-group group)) 'nndoc)
3980 (gnus-group-get-parameter group 'save-article-group)))
3982 (defun gnus-summary-save-in-rmail (&optional filename)
3983 "Append this article to Rmail file.
3984 Optional argument FILENAME specifies file name.
3985 Directory to save to is default to `gnus-article-save-directory'."
3986 (setq filename (gnus-read-save-file-name
3987 "Save %s in rmail file" filename
3988 gnus-rmail-save-name gnus-newsgroup-name
3989 gnus-current-headers 'gnus-newsgroup-last-rmail))
3990 (with-current-buffer gnus-save-article-buffer
3994 ;; Note that unlike gnus-summary-save-in-mail, there is no
3995 ;; check to see if filename is Babyl. Rmail in Emacs 23 does
3997 (gnus-output-to-rmail filename))))
4000 (defun gnus-summary-save-in-mail (&optional filename)
4001 "Append this article to Unix mail file.
4002 Optional argument FILENAME specifies file name.
4003 Directory to save to is default to `gnus-article-save-directory'."
4004 (setq filename (gnus-read-save-file-name
4005 "Save %s in Unix mail file" filename
4006 gnus-mail-save-name gnus-newsgroup-name
4007 gnus-current-headers 'gnus-newsgroup-last-mail))
4008 (with-current-buffer gnus-save-article-buffer
4012 (if (and (file-readable-p filename)
4013 (file-regular-p filename)
4014 (mail-file-babyl-p filename))
4015 (gnus-output-to-rmail filename)
4016 (gnus-output-to-mail filename)))))
4019 (put 'gnus-summary-save-in-file :decode t)
4020 (put 'gnus-summary-save-in-file :headers 'gnus-saved-headers)
4021 (defun gnus-summary-save-in-file (&optional filename overwrite)
4022 "Append this article to file.
4023 Optional argument FILENAME specifies file name.
4024 Directory to save to is default to `gnus-article-save-directory'."
4025 (setq filename (gnus-read-save-file-name
4026 "Save %s in file" filename
4027 gnus-file-save-name gnus-newsgroup-name
4028 gnus-current-headers 'gnus-newsgroup-last-file))
4029 (with-current-buffer gnus-save-article-buffer
4033 (when (and overwrite
4034 (file-exists-p filename))
4035 (delete-file filename))
4036 (gnus-output-to-file filename))))
4039 (put 'gnus-summary-write-to-file :decode t)
4040 (put 'gnus-summary-write-to-file :function 'gnus-summary-save-in-file)
4041 (put 'gnus-summary-write-to-file :headers 'gnus-saved-headers)
4042 (defun gnus-summary-write-to-file (&optional filename)
4043 "Write this article to a file, overwriting it if the file exists.
4044 Optional argument FILENAME specifies file name.
4045 The directory to save in defaults to `gnus-article-save-directory'."
4046 (setq filename (gnus-read-save-file-name
4047 "Save %s in file" filename
4048 gnus-file-save-name gnus-newsgroup-name
4049 gnus-current-headers nil 'gnus-newsgroup-last-directory))
4050 (gnus-summary-save-in-file filename t))
4052 (put 'gnus-summary-save-body-in-file :decode t)
4053 (defun gnus-summary-save-body-in-file (&optional filename overwrite)
4054 "Append this article body to a file.
4055 Optional argument FILENAME specifies file name.
4056 The directory to save in defaults to `gnus-article-save-directory'."
4057 (setq filename (gnus-read-save-file-name
4058 "Save %s body in file" filename
4059 gnus-file-save-name gnus-newsgroup-name
4060 gnus-current-headers 'gnus-newsgroup-last-file))
4061 (with-current-buffer gnus-save-article-buffer
4065 (when (article-goto-body)
4066 (narrow-to-region (point) (point-max)))
4067 (when (and overwrite
4068 (file-exists-p filename))
4069 (delete-file filename))
4070 (gnus-output-to-file filename))))
4073 (put 'gnus-summary-write-body-to-file :decode t)
4074 (put 'gnus-summary-write-body-to-file
4075 :function 'gnus-summary-save-body-in-file)
4076 (defun gnus-summary-write-body-to-file (&optional filename)
4077 "Write this article body to a file, overwriting it if the file exists.
4078 Optional argument FILENAME specifies file name.
4079 The directory to save in defaults to `gnus-article-save-directory'."
4080 (setq filename (gnus-read-save-file-name
4081 "Save %s body in file" filename
4082 gnus-file-save-name gnus-newsgroup-name
4083 gnus-current-headers nil 'gnus-newsgroup-last-directory))
4084 (gnus-summary-save-body-in-file filename t))
4086 (put 'gnus-summary-save-in-pipe :decode t)
4087 (put 'gnus-summary-save-in-pipe :headers 'gnus-saved-headers)
4088 (defun gnus-summary-save-in-pipe (&optional command raw)
4089 "Pipe this article to subprocess COMMAND.
4090 Valid values for COMMAND include:
4092 The executable command name and possibly arguments.
4094 You will be prompted for the command in the minibuffer.
4095 the symbol `default'
4096 It will be replaced with the command which the variable
4097 `gnus-summary-pipe-output-default-command' holds or the command
4098 last used for saving.
4099 Non-nil value for RAW overrides `:decode' and `:headers' properties
4100 and the raw article including all headers will be piped."
4101 (let ((article (gnus-summary-article-number))
4103 (get 'gnus-summary-save-in-pipe :decode)))
4104 save-buffer default)
4106 (if (vectorp (gnus-summary-article-header article))
4107 (save-current-buffer
4108 (gnus-summary-select-article decode decode nil article)
4109 (insert-buffer-substring
4113 gnus-original-article-buffer)
4115 (nnheader-set-temp-buffer " *Gnus Save*"))))
4116 ;; Remove unwanted headers.
4117 (when (and (not raw)
4118 (or (get 'gnus-summary-save-in-pipe :headers)
4119 (not gnus-save-all-headers)))
4120 (let ((gnus-visible-headers
4121 (or (symbol-value (get 'gnus-summary-save-in-pipe
4123 gnus-saved-headers gnus-visible-headers))
4124 (gnus-summary-buffer nil))
4125 (article-hide-headers 1 t))))
4126 (error "%d is not a real article" article))
4127 (error "No article to pipe"))
4128 (setq default (or gnus-summary-pipe-output-default-command
4129 gnus-last-shell-command))
4130 (unless (stringp command)
4132 (if (and (eq command 'default) default)
4134 (read-shell-command "Shell command on this article: " default))))
4135 (when (string-equal command "")
4137 (setq command default)
4138 (error "A command is required")))
4139 (with-current-buffer save-buffer
4142 (shell-command-on-region (point-min) (point-max) command nil)))
4143 (gnus-kill-buffer save-buffer))
4144 (setq gnus-summary-pipe-output-default-command command))
4146 (defun gnus-summary-pipe-to-muttprint (&optional command)
4147 "Pipe this article to muttprint."
4148 (unless (stringp command)
4149 (setq command (read-string
4150 "Print using command: " gnus-summary-muttprint-program
4151 nil gnus-summary-muttprint-program)))
4152 (let ((gnus-summary-pipe-output-default-command
4153 gnus-summary-pipe-output-default-command))
4154 (gnus-summary-save-in-pipe command))
4155 (setq gnus-summary-muttprint-program command))
4157 ;;; Article file names when saving.
4159 (defun gnus-capitalize-newsgroup (newsgroup)
4160 "Capitalize NEWSGROUP name."
4161 (when (not (zerop (length newsgroup)))
4162 (concat (char-to-string (upcase (aref newsgroup 0)))
4163 (substring newsgroup 1))))
4165 (defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
4166 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4167 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
4168 Otherwise, it is like ~/News/news/group/num."
4171 (concat (if (gnus-use-long-file-name 'not-save)
4172 (gnus-capitalize-newsgroup newsgroup)
4173 (gnus-newsgroup-directory-form newsgroup))
4174 "/" (int-to-string (mail-header-number headers)))
4175 gnus-article-save-directory)))
4177 (string-equal (file-name-directory default)
4178 (file-name-directory last-file))
4179 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
4181 (or last-file default))))
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
4186 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4189 (concat (if (gnus-use-long-file-name 'not-save)
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-plain-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. Otherwise, it is like ~/News/news/group/news."
4207 (if (gnus-use-long-file-name 'not-save)
4210 (expand-file-name "news" (gnus-newsgroup-directory-form newsgroup))
4212 gnus-article-save-directory)))
4214 (defun gnus-sender-save-name (_newsgroup headers &optional _last-file)
4215 "Generate file name from sender."
4216 (let ((from (mail-header-from headers)))
4218 (if (and from (string-match "\\([^ <]+\\)@" from))
4219 (match-string 1 from)
4221 gnus-article-save-directory)))
4223 (defun article-verify-x-pgp-sig ()
4225 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4227 (if (gnus-buffer-live-p gnus-original-article-buffer)
4228 (let ((sig (with-current-buffer gnus-original-article-buffer
4229 (gnus-fetch-field "X-PGP-Sig")))
4233 (mml2015-clear-verify-function))
4235 (insert-buffer-substring gnus-original-article-buffer)
4236 (setq items (split-string sig))
4237 (message-narrow-to-head)
4238 (let ((inhibit-point-motion-hooks t)
4239 (case-fold-search t))
4240 ;; Don't verify multiple headers.
4241 (setq headers (mapconcat (lambda (header)
4243 (mail-fetch-field header)
4245 (split-string (nth 1 items) ",") "")))
4246 (delete-region (point-min) (point-max))
4247 (insert "-----BEGIN PGP SIGNED MESSAGE-----\n\n")
4248 (insert "X-Signed-Headers: " (nth 1 items) "\n")
4253 (if (looking-at "^-")
4256 (insert "\n-----BEGIN PGP SIGNATURE-----\n")
4257 (insert "Version: " (car items) "\n\n")
4258 (insert (mapconcat 'identity (cddr items) "\n"))
4259 (insert "\n-----END PGP SIGNATURE-----\n")
4260 (let ((mm-security-handle (list (format "multipart/signed"))))
4261 (mml2015-clean-buffer)
4262 (let ((coding-system-for-write (or gnus-newsgroup-charset
4264 (funcall (mml2015-clear-verify-function)))
4266 (or (mm-handle-multipart-ctl-parameter
4267 mm-security-handle 'gnus-details)
4268 (mm-handle-multipart-ctl-parameter
4269 mm-security-handle 'gnus-info)))))
4271 (let ((inhibit-read-only t) bface eface)
4273 (message-narrow-to-head)
4274 (goto-char (point-max))
4276 (setq bface (get-text-property (point-at-bol) 'face)
4277 eface (get-text-property (1- (point-at-eol)) 'face))
4278 (message-remove-header "X-Gnus-PGP-Verify")
4279 (if (re-search-forward "^X-PGP-Sig:" nil t)
4281 (goto-char (point-max)))
4282 (narrow-to-region (point) (point))
4283 (insert "X-Gnus-PGP-Verify: " info "\n")
4284 (goto-char (point-min))
4287 (if (not (looking-at "^[ \t]"))
4291 (goto-char (point-min))
4292 (when (looking-at "\\([^:]+\\): *")
4293 (put-text-property (match-beginning 1) (1+ (match-end 1))
4295 (put-text-property (match-end 0) (point-max)
4296 'face eface)))))))))
4298 (defun article-verify-cancel-lock ()
4299 "Verify Cancel-Lock header."
4301 (if (gnus-buffer-live-p gnus-original-article-buffer)
4302 (canlock-verify gnus-original-article-buffer)))
4309 (setq afunc (car func)
4312 gfunc (intern (format "gnus-%s" func))))
4314 (when (fboundp afunc)
4315 `(lambda (&optional interactive &rest args)
4316 ,(documentation afunc t)
4317 (interactive (list t))
4318 (with-current-buffer gnus-article-buffer
4320 (call-interactively ',afunc)
4321 (apply ',afunc args))))))))
4322 '(article-hide-headers
4323 article-verify-x-pgp-sig
4324 article-verify-cancel-lock
4325 article-hide-boring-headers
4326 article-treat-overstrike
4327 article-treat-ansi-sequences
4328 article-fill-long-lines
4329 article-capitalize-sentences
4331 article-remove-leading-whitespace
4332 article-display-x-face
4333 article-display-face
4334 article-de-quoted-unreadable
4335 article-de-base64-unreadable
4338 article-unsplit-urls
4339 article-hide-list-identifiers
4340 article-strip-banner
4343 article-hide-signature
4344 article-strip-headers-in-body
4345 article-remove-trailing-blank-lines
4346 article-strip-leading-blank-lines
4347 article-strip-multiple-blank-lines
4348 article-strip-leading-space
4349 article-strip-trailing-space
4350 article-strip-blank-lines
4351 article-strip-all-blank-lines
4353 article-date-english
4354 article-date-iso8601
4355 article-date-original
4358 article-decode-mime-words
4359 article-decode-charset
4360 article-decode-encoded-words
4363 article-date-combined-lapsed
4365 article-treat-dumbquotes
4366 article-treat-non-ascii
4367 article-normalize-headers
4368 ;;(article-show-all . gnus-article-show-all-headers)
4372 ;;; Gnus article mode
4375 (put 'gnus-article-mode 'mode-class 'special)
4377 (set-keymap-parent gnus-article-mode-map widget-keymap)
4379 (gnus-define-keys gnus-article-mode-map
4380 " " gnus-article-goto-next-page
4381 [?\S-\ ] gnus-article-goto-prev-page
4382 "\177" gnus-article-goto-prev-page
4383 [delete] gnus-article-goto-prev-page
4384 "\C-c^" gnus-article-refer-article
4385 "h" gnus-article-show-summary
4386 "s" gnus-article-show-summary
4387 "\C-c\C-m" gnus-article-mail
4388 "?" gnus-article-describe-briefly
4389 "<" beginning-of-buffer
4391 "\C-c\C-i" gnus-info-find-node
4393 "R" gnus-article-reply-with-original
4394 "F" gnus-article-followup-with-original
4395 "\C-hk" gnus-article-describe-key
4396 "\C-hc" gnus-article-describe-key-briefly
4397 "\C-hb" gnus-article-describe-bindings
4399 "e" gnus-article-read-summary-keys
4400 "\C-d" gnus-article-read-summary-keys
4401 "\M-*" gnus-article-read-summary-keys
4402 "\M-#" gnus-article-read-summary-keys
4403 "\M-^" gnus-article-read-summary-keys
4404 "\M-g" gnus-article-read-summary-keys)
4406 (substitute-key-definition
4407 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4409 (defvar gnus-article-send-map)
4410 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4411 "W" gnus-article-wide-reply-with-original
4412 [t] 'gnus-article-read-summary-send-keys)
4414 (defun gnus-article-make-menu-bar ()
4415 (unless (boundp 'gnus-article-commands-menu)
4416 (gnus-summary-make-menu-bar))
4417 (unless (boundp 'gnus-article-article-menu)
4419 gnus-article-article-menu gnus-article-mode-map ""
4421 ["Scroll forwards" gnus-article-goto-next-page t]
4422 ["Scroll backwards" gnus-article-goto-prev-page t]
4423 ["Show summary" gnus-article-show-summary t]
4424 ["Fetch Message-ID at point" gnus-article-refer-article t]
4425 ["Mail to address at point" gnus-article-mail t]
4426 ["Send a bug report" gnus-bug t]))
4429 gnus-article-treatment-menu gnus-article-mode-map ""
4430 ;; Fixme: this should use :active (and maybe :visible).
4432 ["Hide headers" gnus-article-hide-headers t]
4433 ["Hide signature" gnus-article-hide-signature t]
4434 ["Hide citation" gnus-article-hide-citation t]
4435 ["Treat overstrike" gnus-article-treat-overstrike t]
4436 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4437 ["Remove carriage return" gnus-article-remove-cr t]
4438 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4439 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4440 ["Remove base64" gnus-article-de-base64-unreadable t]
4441 ["Treat html" gnus-article-wash-html t]
4442 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4443 ["Decode HZ" gnus-article-decode-HZ t]))
4445 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4447 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4449 (gnus-run-hooks 'gnus-article-menu-hook)))
4451 (defvar bookmark-make-record-function)
4452 (defvar shr-put-image-function)
4454 (define-derived-mode gnus-article-mode fundamental-mode "Article"
4455 "Major mode for displaying an article.
4457 All normal editing commands are switched off.
4459 The following commands are available in addition to all summary mode
4461 \\<gnus-article-mode-map>
4462 \\[gnus-article-next-page]\t Scroll the article one page forwards
4463 \\[gnus-article-prev-page]\t Scroll the article one page backwards
4464 \\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
4465 \\[gnus-article-show-summary]\t Display the summary buffer
4466 \\[gnus-article-mail]\t Send a reply to the address near point
4467 \\[gnus-article-describe-briefly]\t Describe the current mode briefly
4468 \\[gnus-info-find-node]\t Go to the Gnus info node"
4469 (gnus-simplify-mode-line)
4470 (make-local-variable 'minor-mode-alist)
4471 (when (gnus-visual-p 'article-menu 'menu)
4472 (gnus-article-make-menu-bar)
4473 (when gnus-summary-tool-bar-map
4474 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4475 (gnus-update-format-specifications nil 'article-mode)
4476 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4477 (set (make-local-variable 'gnus-page-broken) nil)
4478 (make-local-variable 'gnus-article-current-summary)
4479 (make-local-variable 'gnus-article-mime-handles)
4480 (make-local-variable 'gnus-article-decoded-p)
4481 (make-local-variable 'gnus-article-mime-handle-alist)
4482 (make-local-variable 'gnus-article-wash-types)
4483 (make-local-variable 'gnus-article-image-alist)
4484 (make-local-variable 'gnus-article-charset)
4485 (make-local-variable 'gnus-article-ignored-charsets)
4486 (set (make-local-variable 'bookmark-make-record-function)
4487 'gnus-summary-bookmark-make-record)
4488 ;; Prevent Emacs from displaying non-break space with
4489 ;; `nobreak-space' face.
4490 (set (make-local-variable 'nobreak-char-display) nil)
4491 ;; Enable `gnus-article-remove-images' to delete images shr.el renders.
4492 (set (make-local-variable 'shr-put-image-function) 'gnus-shr-put-image)
4493 (unless gnus-article-show-cursor
4494 (setq cursor-in-non-selected-windows nil))
4495 (gnus-set-default-directory)
4496 (buffer-disable-undo)
4497 (setq buffer-read-only t
4498 show-trailing-whitespace nil)
4499 (mm-enable-multibyte))
4501 (defun gnus-article-setup-buffer ()
4502 "Initialize the article buffer."
4503 (let* ((name (if gnus-single-article-buffer "*Article*"
4505 (gnus-group-decoded-name gnus-newsgroup-name)
4508 (progn (string-match "\\*Article" name)
4509 (concat " *Original Article"
4510 (substring name (match-end 0))))))
4511 (setq gnus-article-buffer name)
4512 (setq gnus-original-article-buffer original)
4513 (setq gnus-article-mime-handle-alist nil)
4514 (with-current-buffer gnus-summary-buffer
4515 ;; This might be a variable local to the summary buffer.
4516 (unless gnus-single-article-buffer
4517 (setq gnus-article-buffer name)
4518 (setq gnus-original-article-buffer original)
4519 (gnus-set-global-variables)))
4520 (gnus-article-setup-highlight-words)
4521 ;; Init original article buffer.
4522 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4523 (mm-enable-multibyte)
4524 (setq major-mode 'gnus-original-article-mode)
4525 (make-local-variable 'gnus-original-article))
4526 (if (and (get-buffer name)
4527 (with-current-buffer name
4528 (if gnus-article-edit-mode
4529 (if (y-or-n-p "Article mode edit in progress; discard? ")
4531 (set-buffer-modified-p nil)
4532 (gnus-kill-buffer name)
4535 (error "Action aborted"))
4537 (let ((summary gnus-summary-buffer))
4538 (with-current-buffer name
4539 (set (make-local-variable 'gnus-article-edit-mode) nil)
4540 (gnus-article-stop-animations)
4541 (when gnus-article-mime-handles
4542 (mm-destroy-parts gnus-article-mime-handles)
4543 (setq gnus-article-mime-handles nil))
4544 ;; Set it to nil in article-buffer!
4545 (setq gnus-article-mime-handle-alist nil)
4546 (buffer-disable-undo)
4547 (setq buffer-read-only t)
4548 (unless (derived-mode-p 'gnus-article-mode)
4549 (gnus-article-mode))
4550 (set (make-local-variable 'gnus-summary-buffer) summary)
4551 (setq truncate-lines gnus-article-truncate-lines)
4553 (let ((summary gnus-summary-buffer))
4554 (with-current-buffer (gnus-get-buffer-create name)
4556 (setq truncate-lines gnus-article-truncate-lines)
4557 (set (make-local-variable 'gnus-summary-buffer) summary)
4558 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4559 (when article-lapsed-timer
4560 (gnus-stop-date-timer))
4561 (when gnus-article-update-date-headers
4562 (gnus-start-date-timer gnus-article-update-date-headers))
4563 (current-buffer))))))
4565 (defun gnus-article-stop-animations ()
4566 (dolist (timer (and (boundp 'timer-list)
4568 (when (eq (timer--function timer) 'image-animate-timeout)
4569 (cancel-timer timer))))
4571 (defun gnus-stop-downloads ()
4572 (when (boundp 'url-queue)
4573 (set (intern "url-queue" obarray) nil)))
4575 ;; Set article window start at LINE, where LINE is the number of lines
4576 ;; from the head of the article.
4577 (defun gnus-article-set-window-start (&optional line)
4578 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4579 (when article-window
4582 (with-current-buffer gnus-article-buffer
4583 (goto-char (point-min))
4586 (gnus-message 6 "Moved to bookmark")
4587 (search-forward "\n\n" nil t)
4591 (defvar gnus-tmp-internal-hook)
4593 (defun gnus-article-prepare (article &optional all-headers _header)
4594 "Prepare ARTICLE in article mode buffer.
4595 ARTICLE should either be an article number or a Message-ID.
4596 If ARTICLE is an id, HEADER should be the article headers.
4597 If ALL-HEADERS is non-nil, no headers are hidden."
4598 (save-excursion ;FIXME: Shouldn't that be save-current-buffer?
4599 ;; Make sure we start in a summary buffer.
4600 (unless (derived-mode-p 'gnus-summary-mode)
4601 (set-buffer gnus-summary-buffer))
4602 (setq gnus-summary-buffer (current-buffer))
4603 (let* ((summary-buffer (current-buffer))
4604 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4605 (group gnus-newsgroup-name)
4608 (gnus-article-setup-buffer)
4609 (set-buffer gnus-article-buffer)
4610 ;; Deactivate active regions.
4611 (when transient-mark-mode
4612 (setq mark-active nil))
4613 (if (not (setq result (let ((inhibit-read-only t))
4614 (gnus-request-article-this-buffer
4616 ;; There is no such article.
4618 (when (and (numberp article)
4619 (not (memq article gnus-newsgroup-sparse)))
4620 (setq gnus-article-current
4621 (cons gnus-newsgroup-name article))
4622 (set-buffer gnus-summary-buffer)
4623 (setq gnus-current-article article)
4624 (if (and (memq article gnus-newsgroup-undownloaded)
4625 (not (gnus-online (gnus-find-method-for-group
4626 gnus-newsgroup-name))))
4628 (gnus-summary-set-agent-mark article)
4629 (message "Message marked for downloading"))
4630 (gnus-summary-mark-article article gnus-canceled-mark)
4631 (unless (memq article gnus-newsgroup-sparse)
4632 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4633 (if (or (eq result 'pseudo)
4634 (eq result 'nneething))
4636 (with-current-buffer summary-buffer
4637 (push article gnus-newsgroup-history)
4638 (setq gnus-last-article gnus-current-article
4639 gnus-current-article 0
4640 gnus-current-headers nil
4641 gnus-article-current nil)
4642 (if (eq result 'nneething)
4643 (gnus-configure-windows 'summary)
4644 (gnus-configure-windows 'article))
4645 (gnus-set-global-variables))
4646 (let ((gnus-article-mime-handle-alist-1
4647 gnus-article-mime-handle-alist))
4648 (gnus-set-mode-line 'article)))
4649 ;; The result from the `request' was an actual article -
4650 ;; or at least some text that is now displayed in the
4652 (when (and (numberp article)
4653 (not (eq article gnus-current-article)))
4654 ;; Seems like a new article has been selected.
4655 ;; `gnus-current-article' must be an article number.
4656 (with-current-buffer summary-buffer
4657 (push article gnus-newsgroup-history)
4658 (setq gnus-last-article gnus-current-article
4659 gnus-current-article article
4660 gnus-current-headers
4661 (gnus-summary-article-header gnus-current-article)
4662 gnus-article-current
4663 (cons gnus-newsgroup-name gnus-current-article))
4664 (unless (vectorp gnus-current-headers)
4665 (setq gnus-current-headers nil))
4666 (gnus-summary-goto-subject gnus-current-article)
4667 (when (gnus-summary-show-thread)
4668 ;; If the summary buffer really was folded, the
4669 ;; previous goto may not actually have gone to
4670 ;; the right article, but the thread root instead.
4672 (gnus-summary-goto-subject gnus-current-article))
4673 (gnus-run-hooks 'gnus-mark-article-hook)
4674 (gnus-set-mode-line 'summary)
4675 (when (gnus-visual-p 'article-highlight 'highlight)
4676 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4677 ;; Set the global newsgroup variables here.
4678 (gnus-set-global-variables)
4679 (setq gnus-have-all-headers
4680 (or all-headers gnus-show-all-headers))))
4682 (gnus-configure-windows 'article))
4683 (when (or (numberp article)
4685 (gnus-article-prepare-display)
4687 (goto-char (point-min))
4688 (when gnus-break-pages
4689 (gnus-narrow-to-page)))
4690 (let ((gnus-article-mime-handle-alist-1
4691 gnus-article-mime-handle-alist))
4692 (gnus-set-mode-line 'article))
4696 (set-window-point (get-buffer-window (current-buffer)) (point))
4697 (gnus-configure-windows 'article)
4698 (gnus-run-hooks 'gnus-article-prepare-hook)
4701 (defvar gnus-mime-display-attachment-buttons-in-header)
4704 (defun gnus-article-prepare-display ()
4705 "Make the current buffer look like a nice article."
4706 ;; Hooks for getting information from the article.
4707 ;; This hook must be called before being narrowed.
4708 (let ((gnus-article-buffer (current-buffer))
4710 (inhibit-read-only t))
4711 (unless (derived-mode-p 'gnus-article-mode)
4712 (gnus-article-mode))
4713 (setq buffer-read-only nil
4714 gnus-article-wash-types nil
4715 gnus-article-image-alist nil)
4716 (gnus-run-hooks 'gnus-tmp-internal-hook)
4717 (when gnus-display-mime-function
4718 (funcall gnus-display-mime-function))
4719 ;; Add attachment buttons to the header.
4720 (when gnus-mime-display-attachment-buttons-in-header
4721 (gnus-mime-buttonize-attachments-in-header))))
4724 ;;; Gnus Sticky Article Mode
4727 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4728 "Mode for sticky articles."
4729 ;; Release bindings that won't work.
4730 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4731 gnus-sticky-article-mode-map)
4732 (substitute-key-definition 'gnus-article-refer-article 'undefined
4733 gnus-sticky-article-mode-map)
4734 (dolist (k '("e" "h" "s" "F" "R"))
4735 (define-key gnus-sticky-article-mode-map k nil))
4736 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4737 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4738 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4739 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4741 (defun gnus-sticky-article (arg)
4742 "Make the current article sticky.
4743 If a prefix ARG is given, ask for a name for this sticky article buffer."
4745 (gnus-summary-show-thread)
4746 (gnus-summary-select-article nil nil 'pseudo)
4747 (let (new-art-buf-name)
4748 (gnus-eval-in-buffer-window gnus-article-buffer
4749 (setq new-art-buf-name
4753 (read-from-minibuffer "Sticky article buffer name: ")
4754 (gnus-with-article-headers
4755 (gnus-article-goto-header "subject")
4756 (setq new-art-buf-name
4757 (buffer-substring-no-properties
4758 (line-beginning-position) (line-end-position)))
4759 (goto-char (point-min))
4760 (gnus-article-goto-header "from")
4761 (setq new-art-buf-name
4763 new-art-buf-name ", "
4764 (buffer-substring-no-properties
4765 (line-beginning-position) (line-end-position))))
4766 (goto-char (point-min))
4767 (gnus-article-goto-header "date")
4768 (setq new-art-buf-name
4770 new-art-buf-name ", "
4771 (buffer-substring-no-properties
4772 (line-beginning-position) (line-end-position))))))
4774 (if (and (gnus-buffer-live-p new-art-buf-name)
4775 (with-current-buffer new-art-buf-name
4776 (derived-mode-p 'gnus-sticky-article-mode)))
4777 (switch-to-buffer new-art-buf-name)
4778 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4779 (gnus-sticky-article-mode))
4780 (setq gnus-article-buffer new-art-buf-name))
4781 (gnus-summary-recenter)
4782 (gnus-summary-position-point))
4784 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4785 "Kill the given sticky article BUFFER.
4786 If none is given, assume the current buffer and kill it if it has
4787 `gnus-sticky-article-mode'."
4790 (setq buffer (current-buffer)))
4791 (with-current-buffer buffer
4792 (when (derived-mode-p 'gnus-sticky-article-mode)
4793 (gnus-kill-buffer buffer))))
4795 (defun gnus-kill-sticky-article-buffers (arg)
4796 "Kill all sticky article buffers.
4797 If a prefix ARG is given, ask for confirmation."
4799 (dolist (buf (gnus-buffers))
4800 (with-current-buffer buf
4801 (when (derived-mode-p 'gnus-sticky-article-mode)
4803 (gnus-kill-buffer buf)
4804 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4805 (gnus-kill-buffer buf)))))))
4808 ;;; Gnus MIME viewing functions
4811 (defvar gnus-mime-button-line-format "%{%([%p. %d%T]%)%}%e\n"
4812 "Format of the MIME buttons.
4814 Valid specifiers include:
4816 %T MIME type, along with additional info
4817 %n The `name' parameter
4818 %d The description, if any
4819 %l The length of the encoded part
4820 %p The part identifier number
4821 %e Dots if the part isn't displayed
4823 General format specifiers can also be used. See Info node
4824 `(gnus)Formatting Variables'.")
4826 (defvar gnus-tmp-type)
4827 (defvar gnus-tmp-type-long)
4828 (defvar gnus-tmp-name)
4829 (defvar gnus-tmp-description)
4830 (defvar gnus-tmp-id)
4831 (defvar gnus-tmp-length)
4832 (defvar gnus-tmp-dots)
4833 (defvar gnus-tmp-info)
4834 (defvar gnus-tmp-pressed-details)
4836 (defvar gnus-mime-button-line-format-alist
4837 '((?t gnus-tmp-type ?s)
4838 (?T gnus-tmp-type-long ?s)
4839 (?n gnus-tmp-name ?s)
4840 (?d gnus-tmp-description ?s)
4842 (?l gnus-tmp-length ?d)
4843 (?e gnus-tmp-dots ?s)))
4845 (defvar gnus-mime-button-commands
4846 '((gnus-article-press-button "\r" "Toggle Display")
4847 (gnus-mime-view-part "v" "View Interactively...")
4848 (gnus-mime-view-part-as-type "t" "View As Type...")
4849 (gnus-mime-view-part-as-charset "C" "View As charset...")
4850 (gnus-mime-save-part "o" "Save...")
4851 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4852 (gnus-mime-replace-part "r" "Replace part")
4853 (gnus-mime-delete-part "d" "Delete part")
4854 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4855 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4856 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4857 (gnus-mime-view-part-externally "e" "View Externally")
4858 (gnus-mime-print-part "p" "Print")
4859 (gnus-mime-pipe-part "|" "Pipe To Command...")
4860 (gnus-mime-action-on-part "." "Take action on the part...")))
4862 (defun gnus-article-mime-part-status ()
4863 (if gnus-article-mime-handle-alist-1
4864 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4866 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4869 (defvar gnus-mime-button-map
4870 (let ((map (make-sparse-keymap)))
4871 (define-key map [mouse-2] 'gnus-article-push-button)
4872 (define-key map [down-mouse-3] 'gnus-mime-button-menu)
4873 (dolist (c gnus-mime-button-commands)
4874 (define-key map (cadr c) (car c)))
4878 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4880 ,@(mapcar (lambda (c)
4881 (vector (caddr c) (car c) :active t))
4882 gnus-mime-button-commands)))
4884 (defvar gnus-url-button-commands
4885 '((gnus-article-copy-string "u" "Copy URL to kill ring")))
4887 (defvar gnus-url-button-map
4888 (let ((map (make-sparse-keymap)))
4889 (dolist (c gnus-url-button-commands)
4890 (define-key map (cadr c) (car c)))
4894 gnus-url-button-menu gnus-url-button-map "URL button menu."
4896 ,@(mapcar (lambda (c)
4897 (vector (caddr c) (car c) :active t))
4898 gnus-url-button-commands)))
4900 (defmacro gnus-bind-mm-vars (&rest body)
4901 "Bind some mm-* variables and execute BODY."
4902 `(let (mm-html-inhibit-images
4903 mm-html-blocked-images
4904 (mm-w3m-safe-url-regexp mm-w3m-safe-url-regexp))
4905 (with-current-buffer
4906 (cond ((derived-mode-p 'gnus-article-mode)
4907 (if (gnus-buffer-live-p gnus-article-current-summary)
4908 gnus-article-current-summary
4909 ;; Maybe we're in a mml-preview buffer
4910 ;; and no group is selected.
4912 ((gnus-buffer-live-p gnus-summary-buffer)
4913 gnus-summary-buffer)
4914 (t (current-buffer)))
4915 (setq mm-html-inhibit-images gnus-inhibit-images
4916 mm-html-blocked-images (gnus-blocked-images))
4917 (when (or (not gnus-newsgroup-name)
4918 (and (stringp gnus-safe-html-newsgroups)
4919 (string-match gnus-safe-html-newsgroups
4920 gnus-newsgroup-name))
4921 (and (consp gnus-safe-html-newsgroups)
4922 (member gnus-newsgroup-name gnus-safe-html-newsgroups)))
4923 (setq mm-w3m-safe-url-regexp nil)))
4926 (defun gnus-mime-button-menu (event prefix)
4927 "Construct a context-sensitive menu of MIME commands."
4928 (interactive "e\nP")
4929 (save-window-excursion
4930 (let ((pos (event-start event)))
4931 (select-window (posn-window pos))
4932 (goto-char (posn-point pos))
4933 (gnus-article-check-buffer)
4934 (popup-menu gnus-mime-button-menu nil prefix))))
4936 (defun gnus-mime-view-all-parts (&optional handles)
4937 "View all the MIME parts."
4939 (with-current-buffer gnus-article-buffer
4940 (let ((handles (or handles gnus-article-mime-handles))
4941 (mail-parse-charset gnus-newsgroup-charset)
4942 (mail-parse-ignored-charsets
4943 (with-current-buffer gnus-summary-buffer
4944 gnus-newsgroup-ignored-charsets)))
4946 (mm-remove-parts handles)
4947 (goto-char (point-min))
4948 (or (search-forward "\n\n") (goto-char (point-max)))
4949 (let ((inhibit-read-only t))
4950 (delete-region (point) (point-max))
4951 (gnus-bind-mm-vars (mm-display-parts handles)))))))
4953 (defun gnus-article-jump-to-part (n)
4954 "Jump to MIME part N."
4956 (let ((parts (with-current-buffer gnus-article-buffer
4957 (length gnus-article-mime-handle-alist))))
4959 (error "No such part"))
4960 (pop-to-buffer gnus-article-buffer)
4962 (setq n (if (= parts 1)
4964 (read-number (format "Jump to part (1..%s): " parts)))))
4965 (unless (and (integerp n) (<= n parts) (>= n 1))
4968 (gnus-message 7 "Invalid part `%s', using %s instead."
4971 (gnus-message 9 "Jumping to part %s." n)
4972 (cond ((>= gnus-auto-select-part 1)
4973 (while (and (<= n parts)
4974 (not (gnus-article-goto-part n)))
4976 ((< gnus-auto-select-part 0)
4977 (while (and (>= n 1)
4978 (not (gnus-article-goto-part n)))
4981 (gnus-article-goto-part n)))))
4983 (defvar gnus-mime-buttonized-part-id nil
4984 "ID of a mime part that should be buttonized.
4985 `gnus-mime-save-part-and-strip' and `gnus-mime-delete-part' bind it.")
4988 (defsubst gnus-article-edit-part (handles &optional current-id)
4989 "Edit an article in order to delete a mime part.
4990 This function is exclusively used by `gnus-mime-save-part-and-strip'
4991 and `gnus-mime-delete-part', and not provided at run-time normally."
4992 (gnus-article-edit-article
4994 (buffer-disable-undo)
4995 (let ((mail-parse-charset (or gnus-article-charset
4996 ',gnus-newsgroup-charset))
4997 (mail-parse-ignored-charsets
4998 (or gnus-article-ignored-charsets
4999 ',gnus-newsgroup-ignored-charsets))
5000 (mbl mml-buffer-list))
5001 (setq mml-buffer-list nil)
5002 ;; A new text must be inserted before deleting existing ones
5003 ;; at the end so as not to move existing markers of which
5004 ;; the insertion type is t.
5008 (goto-char (point-max))
5009 (insert-buffer-substring gnus-original-article-buffer)))
5010 (mime-to-mml ',handles)
5011 (setq gnus-article-mime-handles nil)
5012 (let ((mbl1 mml-buffer-list))
5013 (setq mml-buffer-list mbl)
5014 (set (make-local-variable 'mml-buffer-list) mbl1))
5015 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
5016 `(lambda (no-highlight)
5017 (let ((mail-parse-charset (or gnus-article-charset
5018 ',gnus-newsgroup-charset))
5019 (message-options message-options)
5020 (message-options-set-recipient)
5021 (mail-parse-ignored-charsets
5022 (or gnus-article-ignored-charsets
5023 ',gnus-newsgroup-ignored-charsets)))
5025 (mml-destroy-buffers)
5026 (remove-hook 'kill-buffer-hook
5027 'mml-destroy-buffers t)
5028 (kill-local-variable 'mml-buffer-list))
5029 (gnus-summary-edit-article-done
5030 ,(or (mail-header-references gnus-current-headers) "")
5031 ,(gnus-group-read-only-p)
5032 ,gnus-summary-buffer no-highlight))
5034 ;; Force buttonizing this part.
5035 (let ((gnus-mime-buttonized-part-id current-id))
5036 (gnus-article-edit-done))
5037 (gnus-configure-windows 'article)
5039 (when (and current-id (integerp gnus-auto-select-part))
5040 (gnus-article-jump-to-part
5041 (min (max (+ current-id gnus-auto-select-part) 1)
5042 (with-current-buffer gnus-article-buffer
5043 (length gnus-article-mime-handle-alist)))))))
5045 (defun gnus-mime-replace-part (file)
5046 "Replace MIME part under point with an external body."
5047 ;; Useful if file has already been saved to disk
5050 (read-file-name "Replace MIME part with file: "
5051 (or mm-default-directory default-directory)
5053 (gnus-mime-save-part-and-strip file))
5055 (defun gnus-mime-save-part-and-strip (&optional file)
5056 "Save the MIME part under point then replace it with an external body.
5057 If FILE is given, use it for the external part."
5059 (gnus-article-check-buffer)
5060 (when (gnus-group-read-only-p)
5061 (error "The current group does not support deleting of parts"))
5062 (when (mm-complicated-handles gnus-article-mime-handles)
5064 The current article has a complicated MIME structure, giving up..."))
5065 (let* ((data (get-text-property (point) 'gnus-data))
5066 (id (get-text-property (point) 'gnus-part))
5067 (handles gnus-article-mime-handles))
5070 (and data (mm-save-part data "Delete MIME part and save to: "))))
5072 (with-current-buffer (mm-handle-buffer data)
5074 (insert "Content-Type: " (mm-handle-media-type data))
5075 (mml-insert-parameter-string (cdr (mm-handle-type data))
5077 ;; Add a filename for the sake of saving the part again.
5078 (mml-insert-parameter
5079 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
5081 (insert "Content-ID: " (message-make-message-id) "\n")
5082 (insert "Content-Transfer-Encoding: binary\n")
5085 (cdr (mm-make-handle nil
5086 `("message/external-body"
5087 (access-type . "LOCAL-FILE")
5089 ;; (set-buffer gnus-summary-buffer)
5090 (gnus-article-edit-part handles id))))
5092 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
5093 ;; parts...>') but with stripping would be nice.
5095 (defun gnus-mime-delete-part ()
5096 "Delete the MIME part under point.
5097 Replace it with some information about the removed part."
5099 (gnus-article-check-buffer)
5100 (when (gnus-group-read-only-p)
5101 (error "The current group does not support deleting of parts"))
5102 (when (mm-complicated-handles gnus-article-mime-handles)
5104 The current article has a complicated MIME structure, giving up..."))
5105 (when (or gnus-expert-user
5106 (gnus-yes-or-no-p "\
5107 Deleting parts may malfunction or destroy the article; continue? "))
5108 (let* ((data (get-text-property (point) 'gnus-data))
5109 (id (get-text-property (point) 'gnus-part))
5110 (handles gnus-article-mime-handles)
5112 (let ((desc (mm-handle-description data)))
5114 (mail-decode-encoded-word-string desc))))
5115 (filename (or (mm-handle-filename data) "(none)"))
5116 (type (mm-handle-media-type data)))
5118 (error "No MIME part under point"))
5119 (with-current-buffer (mm-handle-buffer data)
5120 (let ((bsize (buffer-size)))
5125 "| The following attachment has been deleted:\n"
5127 "| Type: " type "\n"
5128 "| Filename: " filename "\n"
5129 "| Size (encoded): " (format "%s byte%s\n"
5130 bsize (if (= bsize 1)
5134 (concat "| Description: " description "\n"))
5137 (cdr (mm-make-handle
5138 nil `("text/plain" (charset . gnus-decoded)) nil nil
5140 (format "Deleted attachment (%s bytes)" bsize))))))
5141 ;; (set-buffer gnus-summary-buffer)
5142 (gnus-article-edit-part handles id))))
5144 (defun gnus-mime-save-part ()
5145 "Save the MIME part under point."
5147 (gnus-article-check-buffer)
5148 (let ((data (get-text-property (point) 'gnus-data)))
5150 (mm-save-part data))))
5152 (defun gnus-mime-pipe-part (&optional cmd)
5153 "Pipe the MIME part under point to a process.
5154 Use CMD as the process."
5156 (gnus-article-check-buffer)
5157 (let ((data (get-text-property (point) 'gnus-data)))
5159 (mm-pipe-part data cmd))))
5161 (defun gnus-mime-view-part ()
5162 "Interactively choose a viewing method for the MIME part under point."
5164 (gnus-article-check-buffer)
5165 (let ((data (get-text-property (point) 'gnus-data)))
5167 (setq gnus-article-mime-handles
5169 gnus-article-mime-handles (setq data (copy-sequence data))))
5170 (mm-interactively-view-part data))))
5172 (defun gnus-mime-view-part-as-type-internal ()
5173 (gnus-article-check-buffer)
5174 (let* ((handle (get-text-property (point) 'gnus-data))
5176 ;; Content-Type: foo/bar; name=...
5177 (mail-content-type-get (mm-handle-type handle) 'name)
5178 ;; Content-Disposition: attachment; filename=...
5179 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
5180 (def-type (and name (mm-default-file-encoding name))))
5181 (or (and def-type (cons def-type 0))
5183 (equal (mm-handle-media-supertype handle) "text")
5184 '("text/plain" . 0))
5185 '("application/octet-stream" . 0))))
5187 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
5188 "Choose a MIME media type, and view the part as such.
5189 If non-nil, PRED is a predicate to use during completion to limit the
5190 available media-types."
5194 (let ((default (gnus-mime-view-part-as-type-internal)))
5195 (gnus-completing-read
5198 (gnus-remove-if-not pred (mailcap-mime-types))
5199 (mailcap-mime-types))
5202 (gnus-article-check-buffer)
5203 (let ((handle (get-text-property (point) 'gnus-data)))
5205 (when (equal (mm-handle-media-type handle) "message/external-body")
5206 (unless (mm-handle-cache handle)
5207 (mm-extern-cache-contents handle))
5208 (setq handle (mm-handle-cache handle)))
5210 (mm-make-handle (mm-handle-buffer handle)
5211 (cons mime-type (cdr (mm-handle-type handle)))
5212 (mm-handle-encoding handle)
5213 (mm-handle-undisplayer handle)
5214 (mm-handle-disposition handle)
5215 (mm-handle-description handle)
5217 (mm-handle-id handle)))
5218 (setq gnus-article-mime-handles
5219 (mm-merge-handles gnus-article-mime-handles handle))
5220 (when (mm-handle-displayed-p handle)
5221 (mm-remove-part handle))
5222 (gnus-mm-display-part handle))))
5224 (defun gnus-mime-copy-part (&optional handle arg)
5225 "Put the MIME part under point into a new buffer.
5226 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
5228 (interactive (list nil current-prefix-arg))
5229 (gnus-article-check-buffer)
5231 (setq handle (get-text-property (point) 'gnus-data)))
5233 (let ((filename (mm-handle-filename handle))
5234 contents dont-decode charset coding-system)
5235 (mm-with-unibyte-buffer
5236 (mm-insert-part handle)
5237 (setq contents (or (condition-case nil
5238 (mm-decompress-buffer filename nil 'sig)
5240 (setq dont-decode t)
5243 (setq filename (cond (filename (file-name-nondirectory filename))
5244 (dont-decode "*raw data*")
5249 (unless (setq charset (mail-content-type-get
5250 (mm-handle-type handle) 'charset))
5251 (unless (setq coding-system (mm-with-unibyte-buffer
5253 (mm-find-buffer-file-coding-system)))
5254 (setq charset gnus-newsgroup-charset))))
5256 (setq charset (or (cdr (assq arg
5257 gnus-summary-show-article-charset-alist))
5258 (read-coding-system "Charset: ")))))
5259 (switch-to-buffer (generate-new-buffer filename))
5260 (if (or coding-system
5262 (setq coding-system (mm-charset-to-coding-system
5264 (not (eq coding-system 'ascii))))
5266 (mm-enable-multibyte)
5267 (insert (decode-coding-string contents coding-system))
5268 (setq buffer-file-coding-system last-coding-system-used))
5269 (mm-disable-multibyte)
5271 (setq buffer-file-coding-system mm-binary-coding-system))
5272 ;; We do it this way to make `normal-mode' set the appropriate mode.
5275 (setq buffer-file-name (expand-file-name filename))
5277 (setq buffer-file-name nil))
5278 (goto-char (point-min)))))
5280 (defun gnus-mime-print-part (&optional handle filename)
5281 "Print the MIME part under point."
5282 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5283 (gnus-article-check-buffer)
5284 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5285 (contents (and handle (mm-get-part handle)))
5286 (file (make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5287 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5292 (mm-save-part-to-file handle file)
5293 (call-process shell-file-name nil
5294 (generate-new-buffer " *mm*")
5296 shell-command-switch
5298 printer file (mm-handle-type handle))))
5302 (gnus-print-buffer))
5303 (ps-despool filename)))))
5305 (defun gnus-mime-inline-part (&optional handle arg)
5306 "Insert the MIME part under point into the current buffer.
5307 Compressed files like .gz and .bz2 are decompressed."
5308 (interactive (list nil current-prefix-arg))
5309 (gnus-article-check-buffer)
5310 (let* ((inhibit-read-only t)
5312 (btn ;; position where the MIME button exists
5314 (if (eq handle (get-text-property b 'gnus-data))
5317 (or (text-property-any (point) (point-max) 'gnus-data handle)
5318 (text-property-any (point-min) (point) 'gnus-data handle)))
5319 (setq handle (get-text-property b 'gnus-data))
5325 (setq start (next-single-property-change btn 'gnus-data
5327 btn (previous-single-property-change start
5330 (if (and (not arg) (mm-handle-undisplayer handle))
5332 (setq b (copy-marker b)
5333 btn (copy-marker btn))
5334 (mm-remove-part handle))
5338 (if (mm-handle-undisplayer handle)
5339 (mm-remove-part handle)))
5340 ((mm-handle-undisplayer handle)
5341 (mm-remove-part handle)))
5344 ;; This is a header button.
5346 (mm-display-inline handle))
5347 ;; Toggle the button appearance between `[button]...' and `[button]'.
5349 (setq btn (prog1 (marker-position btn)
5350 (set-marker btn nil))))
5352 (let ((displayed-p (mm-handle-displayed-p handle)))
5353 (gnus-insert-mime-button handle (get-text-property btn 'gnus-part)
5357 (next-single-property-change (point) 'gnus-data nil (point-max)))
5358 (setq start (point))
5359 (if (search-backward "\n\n" nil t)
5362 (unless (or displayed-p (eolp))
5363 ;; Add extra newline.
5364 (insert (propertize (buffer-substring (1- start) start)
5365 'gnus-undeletable t))))
5366 ;; We're in the article header.
5368 (dolist (ovl (overlays-in btn (point)))
5369 (overlay-put ovl 'gnus-button-attachment-extra t)
5370 (overlay-put ovl 'face nil))
5372 (message-narrow-to-field)
5373 (let ((gnus-treatment-function-alist
5374 '((gnus-treat-highlight-headers
5375 gnus-article-highlight-headers))))
5376 (gnus-treat-article 'head)))))
5378 (setq b (prog1 (marker-position b)
5379 (set-marker b nil))))
5382 (defun gnus-mime-set-charset-parameters (handle charset)
5383 "Set CHARSET to parameters in HANDLE.
5384 CHARSET may either be a string or a symbol."
5385 (unless (stringp charset)
5386 (setq charset (symbol-name charset)))
5387 (if (stringp (car handle))
5388 (dolist (h (cdr handle))
5389 (gnus-mime-set-charset-parameters h charset))
5390 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5391 "message/external-body")
5393 (unless (mm-handle-cache handle)
5394 (mm-extern-cache-contents handle))
5395 (mm-handle-cache handle))
5397 (param (assq 'charset (cdr type))))
5399 (setcdr param charset)
5400 (setcdr type (cons (cons 'charset charset) (cdr type)))))))
5402 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5403 "Insert the MIME part under point into the current buffer using the
5405 (interactive (list nil current-prefix-arg))
5406 (gnus-article-check-buffer)
5407 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5408 (fun (get-text-property (point) 'gnus-callback))
5409 (gnus-newsgroup-ignored-charsets 'gnus-all)
5410 charset form preferred parts)
5417 gnus-summary-show-article-charset-alist))
5418 (read-coding-system "Charset: "))))
5419 (if (mm-handle-undisplayer handle)
5420 (mm-remove-part handle)))
5421 (gnus-mime-set-charset-parameters handle charset)
5422 (when (and (consp (setq form (cdr-safe fun)))
5423 (setq form (ignore-errors
5424 (assq 'gnus-mime-display-alternative form)))
5425 (setq preferred (caddr form))
5427 (when (eq (car preferred) 'quote)
5428 (setq preferred (cadr preferred)))
5429 (not (equal preferred
5430 (get-text-property (point) 'gnus-data))))
5431 (setq parts (get-text-property (point) 'gnus-part))
5432 (setq parts (cdr (assq parts
5433 gnus-article-mime-handle-alist)))
5434 (equal (mm-handle-media-type parts) "multipart/alternative")
5435 (setq parts (reverse (cdr parts))))
5437 (list 'quote (or (cadr (member preferred parts))
5439 (funcall fun handle)))))
5441 (defun gnus-mime-view-part-externally (&optional handle)
5442 "View the MIME part under point with an external viewer."
5444 (gnus-article-check-buffer)
5445 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5446 (mm-inlined-types nil)
5447 (mail-parse-charset gnus-newsgroup-charset)
5448 (mail-parse-ignored-charsets
5449 (with-current-buffer gnus-summary-buffer
5450 gnus-newsgroup-ignored-charsets))
5451 (type (mm-handle-media-type handle))
5452 (method (mailcap-mime-info type))
5453 (mm-enable-external t))
5454 (if (not (stringp method))
5455 (gnus-mime-view-part-as-type
5456 nil (lambda (type) (stringp (mailcap-mime-info type))))
5458 (mm-display-part handle nil t)))))
5460 (defun gnus-mime-view-part-internally (&optional handle)
5461 "View the MIME part under point with an internal viewer.
5462 If no internal viewer is available, use an external viewer."
5464 (gnus-article-check-buffer)
5465 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5466 (mm-inlined-types '(".*"))
5467 (mm-inline-large-images t)
5468 (mail-parse-charset gnus-newsgroup-charset)
5469 (mail-parse-ignored-charsets
5470 (with-current-buffer gnus-summary-buffer
5471 gnus-newsgroup-ignored-charsets))
5472 (inhibit-read-only t))
5473 (if (not (mm-inlinable-p handle))
5474 (gnus-mime-view-part-as-type
5475 nil (lambda (type) (mm-inlinable-p handle type)))
5477 (gnus-bind-mm-vars (mm-display-part handle nil t))))))
5479 (defun gnus-mime-action-on-part (&optional action)
5480 "Do something with the MIME attachment at (point)."
5482 (list (gnus-completing-read "Action" (mapcar 'car gnus-mime-action-alist) t)))
5483 (gnus-article-check-buffer)
5484 (let ((action-pair (assoc action gnus-mime-action-alist)))
5486 (funcall (cdr action-pair)))))
5488 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5489 "Call FUNCTION on MIME part N.
5490 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as its only argument.
5491 If INTERACTIVE, call FUNCTION interactively."
5493 ;; Check whether the article is displayed.
5494 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5495 (setq window (get-buffer-window gnus-article-buffer t))
5496 (frame-visible-p (setq frame (window-frame window))))
5497 (error "No article is displayed"))
5498 (with-current-buffer gnus-article-buffer
5499 ;; Check whether the article displays the right contents.
5500 (unless (with-current-buffer gnus-summary-buffer
5501 (eq gnus-current-article (gnus-summary-article-number)))
5502 (error "You should select the right article first"))
5504 (setq n (prefix-numeric-value n))
5506 (setq n (or (get-text-property pt 'gnus-part)
5508 (get-text-property (1- pt) 'gnus-part))
5509 (get-text-property (prog2
5515 (or (and (setq pt (previous-single-property-change
5518 (next-single-property-change (point) 'gnus-part)
5522 ;; Check whether the specified part exists.
5523 (when (> n (length gnus-article-mime-handle-alist))
5524 (error "No such part")))
5527 ;; To select the window is needed so that the cursor
5528 ;; might be visible on the MIME button.
5529 (select-window (prog1
5531 (setq window (selected-window))
5532 ;; Article may be displayed in the other frame.
5533 (select-frame-set-input-focus
5536 (setq frame (selected-frame))))))
5537 (when (gnus-article-goto-part n)
5538 ;; We point the cursor and the arrow at the MIME button
5539 ;; when the `function' prompt the user for something.
5540 (unless (and (pos-visible-in-window-p)
5541 (> (count-lines (point) (window-end))
5542 (/ (1- (window-height)) 3)))
5543 (recenter (/ (1- (window-height)) 3)))
5544 (let ((cursor-in-non-selected-windows t)
5545 (overlay-arrow-string "=>")
5546 (overlay-arrow-position (point-marker)))
5549 ((and no-handle interactive)
5550 (call-interactively function))
5555 function (get-text-property (point) 'gnus-data)))
5558 (get-text-property (point) 'gnus-data))))
5559 (set-marker overlay-arrow-position nil)
5560 (unless gnus-auto-select-part
5561 (select-frame-set-input-focus frame)
5562 (select-window window))))
5564 (if gnus-inhibit-mime-unbuttonizing
5565 ;; This is the default though the program shouldn't reach here.
5566 (error "No such part")
5567 ;; The part which doesn't have the MIME button is selected.
5568 ;; So, we display all the buttons and redo it.
5569 (let ((gnus-inhibit-mime-unbuttonizing t))
5570 (gnus-summary-show-article)
5571 (gnus-article-part-wrapper n function no-handle))))))
5573 (defun gnus-article-pipe-part (n)
5574 "Pipe MIME part N, which is the numerical prefix."
5576 (gnus-article-part-wrapper n 'mm-pipe-part))
5578 (defun gnus-article-save-part (n)
5579 "Save MIME part N, which is the numerical prefix."
5581 (gnus-article-part-wrapper n 'mm-save-part))
5583 (defun gnus-article-interactively-view-part (n)
5584 "View MIME part N interactively, which is the numerical prefix."
5586 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5588 (defun gnus-article-copy-part (n)
5589 "Copy MIME part N, which is the numerical prefix."
5591 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5593 (defun gnus-article-view-part-as-charset (n)
5594 "View MIME part N using a specified charset.
5595 N is the numerical prefix."
5597 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5599 (defun gnus-article-view-part-externally (n)
5600 "View MIME part N externally, which is the numerical prefix."
5602 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5604 (defun gnus-article-inline-part (n)
5605 "Inline MIME part N, which is the numerical prefix."
5607 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5609 (defun gnus-article-save-part-and-strip (n)
5610 "Save MIME part N and replace it with an external body.
5611 N is the numerical prefix."
5613 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5615 (defun gnus-article-replace-part (n)
5616 "Replace MIME part N with an external body.
5617 N is the numerical prefix."
5619 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5621 (defun gnus-article-delete-part (n)
5622 "Delete MIME part N and add some information about the removed part.
5623 N is the numerical prefix."
5625 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5627 (defun gnus-article-view-part-as-type (n)
5628 "Choose a MIME media type, and view part N as such.
5629 N is the numerical prefix."
5631 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5633 (defun gnus-article-mime-match-handle-first (condition)
5636 (dolist (ihandle gnus-article-mime-handle-alist)
5638 ((functionp condition)
5639 (funcall condition (cdr ihandle)))
5640 ((eq condition 'undisplayed)
5641 (not (or (mm-handle-undisplayer (cdr ihandle))
5642 (equal (mm-handle-media-type (cdr ihandle))
5643 "multipart/alternative"))))
5644 ((eq condition 'undisplayed-alternative)
5645 (not (mm-handle-undisplayer (cdr ihandle))))
5647 (gnus-article-goto-part (car ihandle))
5648 (or (not n) (< (car ihandle) n)))
5649 (setq n (car ihandle))))
5653 (defun gnus-article-view-part (&optional n)
5654 "View MIME part N, which is the numerical prefix.
5655 If the part is already shown, hide the part. If N is nil, view
5658 (with-current-buffer gnus-article-buffer
5659 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5660 gnus-article-mime-match-handle-function)))
5661 (when (> n (length gnus-article-mime-handle-alist))
5662 (error "No such part"))
5663 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5664 (when (gnus-article-goto-part n)
5665 (if (equal (car handle) "multipart/alternative")
5667 (beginning-of-line) ;; Make it toggle subparts
5668 (gnus-article-press-button))
5669 (when (eq (gnus-mm-display-part handle) 'internal)
5670 (gnus-set-window-start)))))))
5672 (defsubst gnus-article-mime-total-parts ()
5673 (if (bufferp (car gnus-article-mime-handles))
5675 (1- (length gnus-article-mime-handles))))
5677 (defun gnus-mm-display-part (handle)
5678 "Display HANDLE and fix MIME button."
5679 (let ((id (get-text-property (point) 'gnus-part))
5681 (inhibit-read-only t)
5682 (window (selected-window))
5683 (mail-parse-charset gnus-newsgroup-charset)
5684 (mail-parse-ignored-charsets
5685 (if (gnus-buffer-live-p gnus-summary-buffer)
5686 (with-current-buffer gnus-summary-buffer
5687 gnus-newsgroup-ignored-charsets)
5692 (let ((win (gnus-get-buffer-window (current-buffer) t)))
5696 (setq start (next-single-property-change point 'gnus-data
5698 point (previous-single-property-change start 'gnus-data))
5699 (if (mm-handle-displayed-p handle)
5700 ;; This will remove the part.
5701 (setq point (copy-marker point)
5702 retval (mm-display-part handle))
5703 (let ((part (or (and (mm-inlinable-p handle)
5704 (mm-inlined-p handle)
5708 (setq retval (mm-display-part handle)))
5709 (unless (zerop (buffer-size))
5710 (buffer-string))))))
5713 ;; This is a header button.
5715 (cond ((stringp part)
5717 (narrow-to-region (point)
5720 (unless (bolp) (insert "\n"))
5722 (gnus-treat-article nil id
5723 (gnus-article-mime-total-parts)
5724 (mm-handle-media-type handle))
5725 (mm-handle-set-undisplayer
5728 (let ((inhibit-read-only t))
5729 (delete-region ,(copy-marker (point-min) t)
5730 ,(point-max-marker)))))))
5732 (mm-display-inline handle))))))
5733 (when (markerp point)
5734 (setq point (prog1 (marker-position point)
5735 (set-marker point nil))))
5737 ;; Toggle the button appearance between `[button]...' and `[button]'.
5738 (let ((displayed-p (mm-handle-displayed-p handle)))
5739 (gnus-insert-mime-button handle id (list displayed-p))
5742 (next-single-property-change (point) 'gnus-data nil (point-max)))
5743 (setq start (point))
5744 (if (search-backward "\n\n" nil t)
5747 (unless (or displayed-p (eolp))
5748 ;; Add extra newline.
5749 (insert (propertize (buffer-substring (1- start) start)
5750 'gnus-undeletable t))))
5751 ;; We're in the article header.
5753 (dolist (ovl (overlays-in point (point)))
5754 (overlay-put ovl 'gnus-button-attachment-extra t)
5755 (overlay-put ovl 'face nil))
5757 (message-narrow-to-field)
5758 (let ((gnus-treatment-function-alist
5759 '((gnus-treat-highlight-headers
5760 gnus-article-highlight-headers))))
5761 (gnus-treat-article 'head)))))
5763 (if (window-live-p window)
5764 (select-window window)))
5767 (defun gnus-article-goto-part (n)
5768 "Go to MIME part N."
5769 (when gnus-break-pages
5773 (let ((start (or (text-property-any (point) (point-max) 'gnus-part n)
5774 ;; There may be header buttons.
5775 (text-property-any (point-min) (point) 'gnus-part n)))
5776 part handle end next handles)
5779 (if (setq handle (get-text-property start 'gnus-data))
5781 ;; Go to the displayed subpart, assuming this is
5782 ;; multipart/alternative.
5785 (while (and (not handle)
5788 (setq next (text-property-not-all part end
5791 handle (get-text-property part 'gnus-data))
5792 (push (cons handle part) handles)
5793 (unless (mm-handle-displayed-p handle)
5795 part (text-property-any part end 'gnus-data nil))))
5797 ;; No subpart is displayed, so we find preferred one.
5799 (cdr (assq (mm-preferred-alternative
5800 (nreverse (mapcar 'car handles)))
5803 (goto-char (1+ part))
5805 (when gnus-break-pages
5806 (gnus-narrow-to-page))))
5808 (defun gnus-insert-mime-button (handle id &optional displayed)
5809 (let ((gnus-tmp-name
5810 (or (mm-handle-filename handle)
5811 (mail-content-type-get (mm-handle-type handle) 'url)
5814 (gnus-tmp-type (mm-handle-media-type handle))
5815 (gnus-tmp-description (or (mm-handle-description handle) ""))
5817 (if (if displayed (car displayed)
5818 (mm-handle-displayed-p handle))
5820 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5822 gnus-tmp-type-long b e)
5823 (when (string-match ".*/" gnus-tmp-name)
5824 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5825 (setq gnus-tmp-type-long (concat gnus-tmp-type
5826 (and (not (equal gnus-tmp-name ""))
5827 (concat "; " gnus-tmp-name))))
5828 (unless (equal gnus-tmp-description "")
5829 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5832 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5833 `(keymap ,gnus-mime-button-map
5834 gnus-callback gnus-mm-display-part
5835 gnus-part ,gnus-tmp-id
5836 article-type annotation
5840 ;; Exclude a newline.
5843 (when gnus-article-button-face
5844 (overlay-put (make-overlay b e nil t)
5845 'face gnus-article-button-face))
5846 (widget-convert-button
5849 :action 'gnus-widget-press-button
5850 :button-keymap gnus-mime-button-map
5854 "%S: %s the MIME part; %S: more options"
5856 (if (mm-handle-displayed-p (widget-get widget :mime-handle))
5860 (defun gnus-widget-press-button (elems _el)
5861 (goto-char (widget-get elems :from))
5862 (gnus-article-press-button))
5864 (defvar gnus-displaying-mime nil)
5866 (defun gnus-display-mime (&optional ihandles)
5867 "Display the MIME parts."
5869 (save-selected-window
5870 (let ((window (get-buffer-window gnus-article-buffer))
5873 (select-window window)
5874 ;; We have to do this since selecting the window
5875 ;; may change the point. So we set the window point.
5876 (set-window-point window point)))
5877 (let ((handles ihandles)
5878 (inhibit-read-only t))
5880 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5881 (when gnus-article-emulate-mime
5882 (mm-uu-dissect-text-parts handles)))
5883 (gnus-article-emulate-mime
5884 (setq handles (mm-uu-dissect))))
5885 (when (and (not ihandles)
5886 (not gnus-displaying-mime))
5887 ;; Top-level call; we clean up.
5888 (when gnus-article-mime-handles
5889 (mm-destroy-parts gnus-article-mime-handles)
5890 (setq gnus-article-mime-handle-alist nil));; A trick.
5891 (setq gnus-article-mime-handles handles)
5892 ;; We allow users to glean info from the handles.
5893 (when gnus-article-mime-part-function
5894 (gnus-mime-part-function handles)))
5896 (or (not (stringp (car handles)))
5899 (when (and (not ihandles)
5900 (not gnus-displaying-mime))
5901 ;; Clean up for mime parts.
5903 (delete-region (point) (point-max)))
5904 (let ((gnus-displaying-mime t))
5905 (gnus-mime-display-part handles)))
5908 (narrow-to-region (point) (point-max))
5909 (gnus-treat-article nil 1 1 "text/plain")
5912 ;; Highlight the headers.
5916 (narrow-to-region (point-min) (point))
5917 (gnus-article-save-original-date
5918 (gnus-treat-article 'head)))))))
5919 ;; Cope with broken MIME messages.
5920 (goto-char (point-max))
5924 (defcustom gnus-mime-display-multipart-as-mixed nil
5925 "Display \"multipart\" parts as \"multipart/mixed\".
5927 If t, it overrides nil values of
5928 `gnus-mime-display-multipart-alternative-as-mixed' and
5929 `gnus-mime-display-multipart-related-as-mixed'."
5930 :group 'gnus-article-mime
5933 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5934 "Display \"multipart/alternative\" parts as \"multipart/mixed\"."
5936 :group 'gnus-article-mime
5939 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5940 "Display \"multipart/related\" parts as \"multipart/mixed\".
5942 If displaying \"text/html\" is discouraged \(see
5943 `mm-discouraged-alternatives') images or other material inside a
5944 \"multipart/related\" part might be overlooked when this variable is nil."
5946 :group 'gnus-article-mime
5949 (defcustom gnus-mime-display-attachment-buttons-in-header t
5950 "Add attachment buttons in the end of the header of an article.
5951 Since MIME attachments tend to be put at the end of an article, we may
5952 overlook them if there is a huge body. This option offers you a copy
5953 of all non-inlinable MIME parts as buttons shown in front of an article.
5954 If nil, don't show those extra buttons."
5956 :group 'gnus-article-mime
5959 (defun gnus-mime-display-part (handle)
5961 ;; Maybe a broken MIME message.
5964 ((not (stringp (car handle)))
5965 (gnus-mime-display-single handle))
5966 ;; User-defined multipart
5967 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5968 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
5970 ;; multipart/alternative
5971 ((and (equal (car handle) "multipart/alternative")
5972 (not (or gnus-mime-display-multipart-as-mixed
5973 gnus-mime-display-multipart-alternative-as-mixed)))
5974 (let ((id (1+ (length gnus-article-mime-handle-alist))))
5975 (push (cons id handle) gnus-article-mime-handle-alist)
5976 (gnus-mime-display-alternative (cdr handle) nil nil id)))
5977 ;; multipart/related
5978 ((and (equal (car handle) "multipart/related")
5979 (not (or gnus-mime-display-multipart-as-mixed
5980 gnus-mime-display-multipart-related-as-mixed)))
5981 (gnus-mime-display-part (cadr handle)))
5982 ((equal (car handle) "multipart/signed")
5983 (gnus-add-wash-type 'signed)
5984 (gnus-mime-display-security handle))
5985 ((equal (car handle) "multipart/encrypted")
5986 (gnus-add-wash-type 'encrypted)
5987 (gnus-mime-display-security handle))
5988 ;; Other multiparts are handled like multipart/mixed.
5990 (gnus-mime-display-mixed (cdr handle)))))
5992 (defun gnus-mime-part-function (handles)
5993 (if (stringp (car handles))
5994 (mapcar 'gnus-mime-part-function (cdr handles))
5995 (funcall gnus-article-mime-part-function handles)))
5997 (defun gnus-mime-display-mixed (handles)
5998 (mapcar 'gnus-mime-display-part handles))
6000 (defun gnus-mime-display-single (handle)
6001 (let ((type (mm-handle-media-type handle))
6002 (ignored gnus-ignored-mime-types)
6008 (when (string-match (pop ignored) type)
6009 (throw 'ignored nil)))
6010 (if (and (not (and (if (gnus-buffer-live-p gnus-summary-buffer)
6011 (with-current-buffer gnus-summary-buffer
6012 gnus-inhibit-images)
6013 gnus-inhibit-images)
6014 (string-match "\\`image/" type)))
6015 (setq not-attachment
6016 (and (not (mm-inline-override-p handle))
6017 (or (not (mm-handle-disposition handle))
6018 (equal (car (mm-handle-disposition handle))
6020 (mm-attachment-override-p handle))))
6021 (mm-automatic-display-p handle)
6023 (mm-inlinable-p handle)
6024 (mm-inlined-p handle))
6025 (mm-automatic-external-display-p type)))
6027 (when (equal (mm-handle-media-supertype handle) "text")
6029 (let ((id (car (rassq handle gnus-article-mime-handle-alist)))
6032 (setq id (1+ (length gnus-article-mime-handle-alist)))
6033 (push (cons id handle) gnus-article-mime-handle-alist))
6035 (equal (mm-handle-media-supertype handle) "message"))
6038 (cond ((not (bolp)) 2)
6039 ((or (bobp) (eq (char-before (1- (point))) ?\n)) 0)
6041 (when (or (not display)
6042 (not (gnus-unbuttonized-mime-type-p type))
6043 (eq id gnus-mime-buttonized-part-id))
6044 (gnus-insert-mime-button
6045 handle id (list (or display (and not-attachment text)))))
6049 (let ((mail-parse-charset gnus-newsgroup-charset)
6050 (mail-parse-ignored-charsets
6051 (save-excursion (condition-case ()
6052 (set-buffer gnus-summary-buffer)
6054 gnus-newsgroup-ignored-charsets)))
6055 (gnus-bind-mm-vars (mm-display-part handle t))))
6056 ((and text not-attachment)
6057 (mm-display-inline handle)))
6058 (goto-char (point-max))
6059 (if (string-match "\\`image/" type)
6060 (gnus-article-insert-newline)
6062 (= (skip-chars-backward "\n") -1)
6063 (unless (eobp) (forward-char 1)))
6064 (gnus-article-insert-newline)
6065 (put-text-property (point) (point-max) 'gnus-undeletable t))
6066 (goto-char (point-max)))
6070 (narrow-to-region beg (point))
6071 (if (eq handle gnus-article-mime-handles)
6072 ;; The format=flowed case.
6073 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
6074 ;; Don't count signature parts that are never displayed.
6075 ;; The part number should be re-calculated supposing this
6076 ;; might be a message/rfc822 part.
6078 (dolist (part gnus-article-mime-handles)
6079 (unless (or (stringp part)
6080 (equal (car (mm-handle-type part))
6081 "application/pgp-signature"))
6082 (push part handles)))
6084 nil (length (memq handle handles)) (length handles)
6085 (mm-handle-media-type handle)))))))))))
6087 (defun gnus-unbuttonized-mime-type-p (type)
6088 "Say whether TYPE is to be unbuttonized."
6089 (unless gnus-inhibit-mime-unbuttonizing
6091 (let ((types gnus-unbuttonized-mime-types))
6093 (when (string-match (pop types) type)
6094 (throw 'found t)))))
6096 (let ((types gnus-buttonized-mime-types))
6098 (when (string-match (pop types) type)
6099 (throw 'found t)))))))))
6101 (defun gnus-article-insert-newline ()
6102 "Insert a newline, but mark it as undeletable."
6103 (put-text-property (point) (progn (insert "\n") (point)) 'gnus-undeletable t))
6105 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
6106 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
6109 handle (inhibit-read-only t) from begend not-pref)
6110 (save-window-excursion
6113 (narrow-to-region (car ibegend)
6116 (goto-char (car ibegend))
6119 (delete-region (point-min) (point-max))
6120 (mm-remove-parts handles))
6121 (setq begend (list (point-marker)))
6123 (unless (setq not-pref (cadr (member preferred ihandles)))
6124 (setq not-pref (car ihandles)))
6127 (not (gnus-unbuttonized-mime-type-p
6128 "multipart/alternative")))
6129 (add-text-properties
6132 (insert (format "%d. " id))
6136 (unless ,(not ibegend)
6137 (setq gnus-article-mime-handle-alist
6138 ',gnus-article-mime-handle-alist))
6139 (gnus-mime-display-alternative
6140 ',ihandles ',not-pref ',begend ,id))
6141 keymap ,gnus-mime-button-map
6142 mouse-face ,gnus-article-mouse-face
6143 face ,gnus-article-button-face
6145 article-type multipart
6147 (widget-convert-button 'link from (point)
6148 :action 'gnus-widget-press-button)
6150 (while (setq handle (pop handles))
6151 (add-text-properties
6154 (insert (format "(%c) %-18s"
6155 (if (equal handle preferred) ?* ? )
6156 (mm-handle-media-type handle)))
6160 (unless ,(not ibegend)
6161 (setq gnus-article-mime-handle-alist
6162 ',gnus-article-mime-handle-alist))
6163 (gnus-mime-display-alternative
6164 ',ihandles ',handle ',begend ,id))
6165 keymap ,gnus-mime-button-map
6166 mouse-face ,gnus-article-mouse-face
6167 face ,gnus-article-button-face
6171 (widget-convert-button 'link from (point)
6172 :action 'gnus-widget-press-button)
6176 (if (stringp (car preferred))
6177 (gnus-display-mime preferred)
6178 (let ((mail-parse-charset gnus-newsgroup-charset)
6179 (mail-parse-ignored-charsets
6180 (with-current-buffer gnus-summary-buffer
6181 gnus-newsgroup-ignored-charsets)))
6182 (gnus-bind-mm-vars (mm-display-part preferred))
6186 (narrow-to-region (car begend) (point-max))
6188 nil (length gnus-article-mime-handle-alist)
6189 (gnus-article-mime-total-parts)
6190 (mm-handle-media-type preferred))))))
6191 (goto-char (point-max))
6192 (setcdr begend (point-marker)))))
6195 ;; Redraw attachment buttons in the header.
6196 (when gnus-mime-display-attachment-buttons-in-header
6197 (gnus-mime-buttonize-attachments-in-header)))
6199 (defconst gnus-article-wash-status-strings
6200 (let ((alist '((cite "c" "Possible hidden citation text"
6201 " " "All citation text visible")
6202 (headers "h" "Hidden headers"
6203 " " "All headers visible.")
6204 (pgp "p" "Encrypted or signed message status hidden"
6205 " " "No hidden encryption nor digital signature status")
6206 (signature "s" "Signature has been hidden"
6207 " " "Signature is visible")
6208 (overstrike "o" "Overstrike (^H) characters applied"
6209 " " "No overstrike characters applied")
6210 (emphasis "e" "/*_Emphasis_*/ characters applied"
6211 " " "No /*_emphasis_*/ characters applied")))
6213 (dolist (entry alist result)
6214 (let ((key (nth 0 entry))
6215 (on (copy-sequence (nth 1 entry)))
6216 (on-help (nth 2 entry))
6217 (off (copy-sequence (nth 3 entry)))
6218 (off-help (nth 4 entry)))
6219 (put-text-property 0 1 'help-echo on-help on)
6220 (put-text-property 0 1 'help-echo off-help off)
6221 (push (list key on off) result))))
6222 "Alist of strings describing wash status in the mode line.
6223 Each entry has the form (KEY ON OF), where the KEY is a symbol
6224 representing the particular washing function, ON is the string to use
6225 in the article mode line when the washing function is active, and OFF
6226 is the string to use when it is inactive.")
6228 (defun gnus-article-wash-status-entry (key value)
6229 (let ((entry (assoc key gnus-article-wash-status-strings)))
6230 (if value (nth 1 entry) (nth 2 entry))))
6232 (defun gnus-article-wash-status ()
6233 "Return a string which display status of article washing."
6234 (with-current-buffer gnus-article-buffer
6235 (let ((cite (memq 'cite gnus-article-wash-types))
6236 (headers (memq 'headers gnus-article-wash-types))
6237 (boring (memq 'boring-headers gnus-article-wash-types))
6238 (pgp (memq 'pgp gnus-article-wash-types))
6239 (pem (memq 'pem gnus-article-wash-types))
6240 (signed (memq 'signed gnus-article-wash-types))
6241 (encrypted (memq 'encrypted gnus-article-wash-types))
6242 (signature (memq 'signature gnus-article-wash-types))
6243 (overstrike (memq 'overstrike gnus-article-wash-types))
6244 (emphasis (memq 'emphasis gnus-article-wash-types)))
6246 (gnus-article-wash-status-entry 'cite cite)
6247 (gnus-article-wash-status-entry 'headers (or headers boring))
6248 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
6249 (gnus-article-wash-status-entry 'signature signature)
6250 (gnus-article-wash-status-entry 'overstrike overstrike)
6251 (gnus-article-wash-status-entry 'emphasis emphasis)))))
6253 (defun gnus-add-wash-type (type)
6254 "Add a washing of TYPE to the current status."
6255 (add-to-list 'gnus-article-wash-types type))
6257 (defun gnus-delete-wash-type (type)
6258 "Add a washing of TYPE to the current status."
6259 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
6261 (defun gnus-add-image (category image)
6262 "Add IMAGE of CATEGORY to the list of displayed images."
6263 (let ((entry (assq category gnus-article-image-alist)))
6265 (setq entry (list category))
6266 (push entry gnus-article-image-alist))
6267 (nconc entry (list image))))
6269 (defun gnus-delete-images (category)
6270 "Delete all images in CATEGORY."
6271 (let ((entry (assq category gnus-article-image-alist)))
6272 (dolist (image (cdr entry))
6273 (gnus-remove-image image category))
6274 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
6275 (gnus-delete-wash-type category)))
6277 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6279 (defun gnus-article-maybe-hide-headers ()
6280 "Hide unwanted headers if `gnus-have-all-headers' is nil.
6281 Provided for backwards compatibility."
6282 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
6283 (not (with-current-buffer gnus-summary-buffer
6284 gnus-have-all-headers)))
6285 (not gnus-inhibit-hiding))
6286 (article-hide-headers)))
6288 (declare-function shr-put-image "shr" (data alt &optional flags))
6290 (defun gnus-shr-put-image (data alt &optional flags)
6291 "Put image DATA with a string ALT. Enable image to be deleted."
6292 (let ((image (if flags
6293 (shr-put-image data (propertize (or alt "*")
6294 'gnus-image-category 'shr)
6296 ;; Old `shr-put-image' doesn't take the optional `flags'
6298 (shr-put-image data (propertize (or alt "*")
6299 'gnus-image-category 'shr)))))
6301 (gnus-add-image 'shr image))))
6303 (defun gnus-article-mime-handles (&optional alist id all)
6305 (let ((i 1) newid flat)
6306 (dolist (handle alist flat)
6307 (setq newid (append id (list i))
6309 (if (stringp (car handle))
6310 (setq flat (nconc flat (gnus-article-mime-handles
6311 (cdr handle) newid all)))
6312 (delq (rassq handle all) all)
6313 (setq flat (nconc flat (list (cons newid handle)))))))
6314 (let ((flat (list nil)))
6315 ;; Assume that elements of `gnus-article-mime-handle-alist'
6316 ;; are in the decreasing order, but unnumbered subsidiaries
6317 ;; in each element are in the increasing order.
6318 (dolist (handle (reverse gnus-article-mime-handle-alist))
6319 (if (stringp (cadr handle))
6320 (setq flat (nconc flat (gnus-article-mime-handles
6321 (cddr handle) (list (car handle)) flat)))
6322 (delq (rassq (cdr handle) flat) flat)
6323 (setq flat (nconc flat (list (cons (list (car handle))
6325 (setq flat (cdr flat))
6326 (mapc (lambda (handle)
6328 ;; This is a hidden (i.e. unnumbered) handle.
6331 (1+ (caar gnus-article-mime-handle-alist)))
6332 (push handle gnus-article-mime-handle-alist))
6333 (setcar handle (caar handle))))
6337 (defun gnus-mime-buttonize-attachments-in-header (&optional interactive)
6338 "Show attachments as buttons in the end of the header of an article.
6339 This function toggles the display when called interactively. Note that
6340 buttons to be added to the header are only the ones that aren't inlined
6341 in the body. Use `gnus-header-face-alist' to highlight buttons."
6342 (interactive (list t))
6343 (gnus-with-article-buffer
6344 (let ((case-fold-search t) buttons handle type st)
6348 (article-narrow-to-head)
6349 ;; Header buttons exist?
6350 (while (and (not buttons)
6351 (re-search-forward "^attachments?:[\n ]+" nil t))
6352 (when (get-char-property (match-end 0)
6353 'gnus-button-attachment-extra)
6354 (setq buttons (match-beginning 0))))
6357 ;; Delete header buttons.
6358 (delete-region buttons (if (re-search-forward "^[^ ]" nil t)
6361 (unless (and interactive buttons)
6364 (dolist (button (gnus-article-mime-handles))
6365 (setq handle (cdr button)
6366 type (mm-handle-media-type handle))
6367 (when (or (and (if (gnus-buffer-live-p gnus-summary-buffer)
6368 (with-current-buffer gnus-summary-buffer
6369 gnus-inhibit-images)
6370 gnus-inhibit-images)
6371 (string-match "\\`image/" type))
6372 (mm-inline-override-p handle)
6373 (and (mm-handle-disposition handle)
6374 (not (equal (car (mm-handle-disposition handle))
6376 (not (mm-attachment-override-p handle)))
6377 (not (mm-automatic-display-p handle))
6378 (not (or (and (mm-inlinable-p handle)
6379 (mm-inlined-p handle))
6380 (mm-automatic-external-display-p type))))
6381 (push button buttons)))
6383 ;; Add header buttons.
6386 (narrow-to-region (point) (point))
6387 (insert "Attachment" (if (cdr buttons) "s" "") ":")
6388 (dolist (button (nreverse buttons))
6391 (mm-handle-set-undisplayer (setq handle (cdr button)) nil)
6392 (gnus-insert-mime-button handle (car button))
6393 (skip-chars-backward "\t\n ")
6394 (delete-region (point) (point-max))
6395 (when (> (current-column) (window-width))
6400 (dolist (ovl (overlays-in (point-min) (point)))
6401 (overlay-put ovl 'gnus-button-attachment-extra t)
6402 (overlay-put ovl 'face nil))
6403 (let ((gnus-treatment-function-alist
6404 '((gnus-treat-highlight-headers
6405 gnus-article-highlight-headers))))
6406 (gnus-treat-article 'head)))))))))
6410 (defun gnus-output-to-file (file-name)
6411 "Append the current article to a file named FILE-NAME.
6412 If `gnus-article-save-coding-system' is non-nil, it is used to encode
6413 text and used as the value of the coding cookie which is added to the
6414 top of a file. Otherwise, this function saves a raw article without
6416 (let* ((artbuf (current-buffer))
6417 (file-name-coding-system nnmail-pathname-coding-system)
6418 (coding gnus-article-save-coding-system)
6419 (coding-system-for-read (if coding
6420 nil ;; Rely on the coding cookie.
6421 mm-text-coding-system))
6422 (coding-system-for-write (or coding
6423 mm-text-coding-system-for-write
6424 mm-text-coding-system))
6425 (exists (file-exists-p file-name)))
6428 (insert-file-contents file-name)
6429 (goto-char (point-min))
6430 ;; Remove the existing coding cookie.
6431 (when (looking-at "X-Gnus-Coding-System: .+\n\n")
6432 (delete-region (match-beginning 0) (match-end 0))))
6433 (goto-char (point-max))
6434 (insert-buffer-substring artbuf)
6435 ;; Append newline at end of the buffer as separator, and then
6437 (goto-char (point-max))
6440 ;; If the coding system is not suitable to encode the text,
6441 ;; ask a user for a proper one.
6442 (setq coding (coding-system-base
6443 (save-window-excursion
6444 (select-safe-coding-system (point-min) (point-max)
6446 (setq coding-system-for-write
6447 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
6449 (goto-char (point-min))
6450 ;; Add the coding cookie.
6451 (insert (format "X-Gnus-Coding-System: -*- coding: %s; -*-\n\n"
6452 coding-system-for-write)))
6455 (write-region (point-min) (point-max) file-name nil 'no-message)
6456 (message "Appended to %s" file-name))
6457 (write-region (point-min) (point-max) file-name))))
6460 (defun gnus-narrow-to-page (&optional arg)
6461 "Narrow the article buffer to a page.
6462 If given a numerical ARG, move forward ARG pages."
6464 (setq arg (if arg (prefix-numeric-value arg) 0))
6465 (with-current-buffer gnus-article-buffer
6467 ;; Remove any old next/prev buttons.
6468 (when (gnus-visual-p 'page-marker)
6469 (let ((inhibit-read-only t))
6470 (gnus-remove-text-with-property 'gnus-prev)
6471 (gnus-remove-text-with-property 'gnus-next)))
6473 (when (save-excursion
6475 (if (re-search-backward page-delimiter nil 'move (abs arg))
6477 (setq nd (match-beginning 0)
6479 (when (re-search-backward page-delimiter nil t)
6480 (setq st (match-end 0))))
6481 (when (re-search-forward page-delimiter nil t)
6482 (setq nd (match-beginning 0)
6485 (if (re-search-forward page-delimiter nil 'move arg)
6487 (setq st (match-end 0)
6489 (when (re-search-forward page-delimiter nil t)
6490 (setq nd (match-beginning 0))))
6491 (when (re-search-backward page-delimiter nil t)
6492 (setq st (match-end 0)
6495 (when (re-search-backward page-delimiter nil t)
6496 (goto-char (setq st (match-end 0))))
6497 (when (re-search-forward page-delimiter nil t)
6498 (setq nd (match-beginning 0)))
6500 (setq gnus-page-broken t)
6501 (when pt (goto-char pt))
6502 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6503 (when (gnus-visual-p 'page-marker)
6507 (gnus-insert-next-page-button))
6510 (gnus-insert-prev-page-button))))))))
6512 ;; Article mode commands
6514 (defun gnus-article-goto-next-page ()
6515 "Show the next page of the article."
6517 (when (gnus-article-next-page)
6518 (goto-char (point-min))
6519 (gnus-article-read-summary-keys nil ?n)))
6522 (defun gnus-article-goto-prev-page ()
6523 "Show the previous page of the article."
6525 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6526 (gnus-article-read-summary-keys nil ?p)
6527 (gnus-article-prev-page nil)))
6529 ;; This is cleaner but currently breaks `gnus-pick-mode':
6531 ;; (defun gnus-article-goto-next-page ()
6532 ;; "Show the next page of the article."
6534 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6535 ;; (gnus-summary-next-page)))
6537 ;; (defun gnus-article-goto-prev-page ()
6538 ;; "Show the next page of the article."
6540 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6541 ;; (gnus-summary-prev-page)))
6543 (defun gnus-article-next-page (&optional lines)
6544 "Show the next page of the current article.
6545 If end of article, return non-nil. Otherwise return nil.
6546 Argument LINES specifies lines to be scrolled up."
6548 (move-to-window-line (- -1 scroll-margin))
6549 (if (and (not (and gnus-article-over-scroll
6550 (> (count-lines (window-start) (point-max))
6551 (+ (or lines (1- (window-height))) scroll-margin))))
6554 (and (pos-visible-in-window-p) ;Not continuation line.
6555 (>= (point) (point-max)))))
6556 ;; Nothing in this page.
6557 (if (or (not gnus-page-broken)
6562 (eobp)))) ;Real end-of-buffer?
6564 (when gnus-article-over-scroll
6565 (gnus-article-next-page-1 lines))
6567 (gnus-narrow-to-page 1) ;Go to next page.
6569 ;; More in this page.
6570 (gnus-article-next-page-1 lines)
6573 (defun gnus-article-beginning-of-window ()
6574 "Move point to the beginning of the window.
6575 The point is placed at the line number which `scroll-margin'
6577 ;; There is an obscure bug in Emacs that makes it impossible to
6578 ;; scroll past big pictures in the article buffer. Try to fix
6579 ;; this by adding a sanity check by counting the lines visible.
6580 (when (> (count-lines (window-start) (window-end)) 30)
6581 (move-to-window-line
6582 (min (max 0 scroll-margin)
6583 (max 1 (- (window-height)
6584 (if mode-line-format 1 0)
6585 (if header-line-format 1 0)
6588 (defvar scroll-in-place)
6590 (defun gnus-article-next-page-1 (lines)
6592 (let ((scroll-in-place nil)
6593 (auto-window-vscroll nil))
6596 ;; Long lines may cause an end-of-buffer error.
6597 (goto-char (point-max))))
6598 (gnus-article-beginning-of-window))
6600 (defun gnus-article-prev-page (&optional lines)
6601 "Show previous page of current article.
6602 Argument LINES specifies lines to be scrolled down."
6604 (move-to-window-line 0)
6605 (if (and gnus-page-broken
6607 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6609 (gnus-narrow-to-page -1) ;Go to previous page.
6610 (goto-char (point-max))
6611 (recenter (if gnus-article-over-scroll
6613 (max (+ lines scroll-margin) 3)
6614 (- (window-height) 2))
6618 (let ((scroll-in-place nil))
6619 (scroll-down lines))
6620 (beginning-of-buffer
6621 (goto-char (point-min))))
6622 (gnus-article-beginning-of-window))))
6624 (defun gnus-article-only-boring-p ()
6625 "Decide whether there is only boring text remaining in the article.
6626 Something \"interesting\" is a word of at least two letters that does
6627 not have a face in `gnus-article-boring-faces'."
6628 (when (and gnus-article-skip-boring
6629 (boundp 'gnus-article-boring-faces)
6630 (symbol-value 'gnus-article-boring-faces))
6632 (let ((inhibit-point-motion-hooks t))
6634 (while (re-search-forward "\\b\\w\\w" nil t)
6636 (when (not (gnus-intersection
6637 (gnus-faces-at (point))
6638 (symbol-value 'gnus-article-boring-faces)))
6639 (throw 'only-boring nil)))
6640 (throw 'only-boring t))))))
6642 (defun gnus-article-refer-article ()
6643 "Read article specified by message-id around point."
6646 (re-search-backward "[ \t]\\|^" (point-at-bol) t)
6647 (re-search-forward "<?news:<?\\|<" (point-at-eol) t)
6648 (if (re-search-forward "[^@ ]+@[^ \t>]+" (point-at-eol) t)
6649 (let ((msg-id (concat "<" (match-string 0) ">")))
6650 (set-buffer gnus-summary-buffer)
6651 (gnus-summary-refer-article msg-id))
6652 (error "No references around point"))))
6654 (defun gnus-article-show-summary ()
6655 "Reconfigure windows to show summary buffer."
6657 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6658 (error "There is no summary buffer for this article buffer")
6659 (gnus-article-set-globals)
6660 (gnus-configure-windows 'article)
6661 (gnus-summary-goto-subject gnus-current-article)
6662 (gnus-summary-position-point)))
6664 (defun gnus-article-describe-briefly ()
6665 "Describe article mode commands briefly."
6667 (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")))
6669 (defun gnus-article-check-buffer ()
6670 "Beep if not in an article buffer."
6671 (unless (derived-mode-p 'gnus-article-mode)
6672 (error "Command invoked outside of a Gnus article buffer")))
6674 (defvar gnus-pick-mode)
6676 (defun gnus-article-read-summary-keys (&optional _arg key not-restore-window)
6677 "Read a summary buffer key sequence and execute it from the article buffer."
6679 (gnus-article-check-buffer)
6681 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6682 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6683 "=" "^" "\M-^" "|"))
6685 '("A " "A<" "A>" "AM" "AP" "AR" "AT" "A\C-?" "A\M-\r" "A\r" "Ab" "Ae"
6686 "An" "Ap" [?A (meta return)] [?A delete]))
6690 (with-current-buffer gnus-article-current-summary
6691 (let (gnus-pick-mode)
6692 (setq unread-command-events (nconc unread-command-events
6693 (list (or key last-command-event)))
6694 keys (read-key-sequence nil t))))
6699 ((eq (aref keys (1- (length keys))) ?\C-h)
6700 (gnus-article-describe-bindings (substring keys 0 -1)))
6701 ((or (member keys nosaves)
6702 (member keys nosave-but-article)
6703 (member keys nosave-in-article))
6705 (save-window-excursion
6706 (pop-to-buffer gnus-article-current-summary)
6707 ;; We disable the pick minor mode commands.
6708 (let (gnus-pick-mode)
6709 (setq func (key-binding keys t))))
6713 (unless (member keys nosave-in-article)
6714 (set-buffer gnus-article-current-summary))
6715 (when (and (symbolp func)
6716 (get func 'disabled))
6717 (error "Function %s disabled" func))
6718 (call-interactively func)
6719 (setq new-sum-point (point)))
6720 (when (member keys nosave-but-article)
6721 (pop-to-buffer gnus-article-buffer))))
6723 ;; These commands should restore window configuration.
6724 (let ((obuf (current-buffer))
6725 (owin (current-window-configuration))
6726 win func in-buffer selected new-sum-start new-sum-hscroll err)
6727 (cond (not-restore-window
6728 (pop-to-buffer gnus-article-current-summary)
6729 (setq win (selected-window)))
6730 ((setq win (get-buffer-window gnus-article-current-summary))
6731 (select-window win))
6733 (let ((summary-buffer gnus-article-current-summary))
6734 (gnus-configure-windows 'article)
6735 (unless (setq win (get-buffer-window summary-buffer 'visible))
6736 (let ((gnus-buffer-configuration
6737 '((article ((vertical 1.0
6738 (summary 0.25 point)
6740 (gnus-configure-windows 'article))
6741 (setq win (get-buffer-window summary-buffer 'visible)))
6742 (select-frame-set-input-focus (window-frame win))
6743 (select-window win))))
6744 (setq in-buffer (current-buffer))
6745 ;; We disable the pick minor mode commands.
6746 (setq func (let (gnus-pick-mode)
6747 (key-binding keys t)))
6748 (when (get func 'disabled)
6749 (error "Function %s disabled" func))
6752 (condition-case code
6754 (call-interactively func)
6760 (when (eq win (selected-window))
6761 (setq new-sum-point (point)
6762 new-sum-start (window-start win)
6763 new-sum-hscroll (window-hscroll win)))
6764 (when (or (eq in-buffer (current-buffer))
6765 (when (eq obuf (current-buffer))
6766 (set-buffer in-buffer)
6768 (setq selected (ignore-errors (gnus-summary-select-article)))
6770 (unless not-restore-window
6771 (set-window-configuration owin))
6772 (when (and (eq selected 'old)
6774 (set-window-start (get-buffer-window (current-buffer))
6776 (set-window-point (get-buffer-window (current-buffer))
6777 (if (article-goto-body)
6780 (when (and (not not-restore-window)
6783 (with-current-buffer (window-buffer win)
6784 (derived-mode-p 'gnus-summary-mode)))
6785 (set-window-point win new-sum-point)
6786 (set-window-start win new-sum-start)
6787 (set-window-hscroll win new-sum-hscroll))))
6788 (set-window-configuration owin)
6790 (signal (car err) (cdr err))
6793 (defun gnus-article-read-summary-send-keys ()
6795 (let ((unread-command-events (list ?S)))
6796 (gnus-article-read-summary-keys)))
6798 (defun gnus-article-describe-key (key)
6799 "Display documentation of the function invoked by KEY.
6800 KEY is a string or a vector."
6801 (interactive (list (let ((cursor-in-echo-area t))
6802 (read-key-sequence "Describe key: "))))
6803 (gnus-article-check-buffer)
6804 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6805 gnus-article-read-summary-send-keys))
6806 (with-current-buffer gnus-article-current-summary
6807 (setq unread-command-events
6809 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6810 (list 'meta (- x 128))
6813 unread-command-events))
6814 (let ((cursor-in-echo-area t)
6816 (describe-key (read-key-sequence nil t))))
6817 (describe-key key)))
6819 (defun gnus-article-describe-key-briefly (key &optional insert)
6820 "Display documentation of the function invoked by KEY.
6821 KEY is a string or a vector."
6822 (interactive (list (let ((cursor-in-echo-area t))
6823 (read-key-sequence "Describe key: "))
6824 current-prefix-arg))
6825 (gnus-article-check-buffer)
6826 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6827 gnus-article-read-summary-send-keys))
6828 (with-current-buffer gnus-article-current-summary
6829 (setq unread-command-events
6831 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6832 (list 'meta (- x 128))
6835 unread-command-events))
6836 (let ((cursor-in-echo-area t)
6838 (describe-key-briefly (read-key-sequence nil t) insert)))
6839 (describe-key-briefly key insert)))
6841 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6842 (defvar gnus-agent-summary-mode)
6843 (defvar gnus-draft-mode)
6844 (defvar help-xref-stack-item)
6845 (defvar help-xref-following)
6847 (defun gnus-article-describe-bindings (&optional prefix)
6848 "Show a list of all defined keys, and their definitions.
6849 The optional argument PREFIX, if non-nil, should be a key sequence;
6850 then we display only bindings that start with that prefix."
6852 (gnus-article-check-buffer)
6853 (let ((keymap (copy-keymap gnus-article-mode-map))
6854 (map (copy-keymap gnus-article-send-map))
6855 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6857 (define-key keymap "S" map)
6858 (define-key map [t] nil)
6859 (with-current-buffer gnus-article-current-summary
6862 (if (setq parent (keymap-parent gnus-article-mode-map))
6864 (setq parent (copy-keymap parent))
6865 (set-keymap-parent parent (current-local-map)))
6866 (current-local-map)))
6867 (set-keymap-parent map (key-binding "S"))
6868 (let (key def gnus-pick-mode)
6870 (setq key (pop sumkeys))
6871 (cond ((and (vectorp key) (= (length key) 1)
6872 (consp (setq def (aref key 0)))
6873 (numberp (car def)) (numberp (cdr def)))
6874 (when (< (max (car def) (cdr def)) 128)
6878 (nreverse (gnus-uncompress-range def)))
6880 ((setq def (key-binding key))
6881 (unless (eq def 'undefined)
6882 (define-key keymap key def))))))
6883 (when (boundp 'gnus-agent-summary-mode)
6884 (setq agent gnus-agent-summary-mode))
6885 (when (boundp 'gnus-draft-mode)
6886 (setq draft gnus-draft-mode)))
6888 (use-local-map keymap)
6889 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6890 (set (make-local-variable 'gnus-draft-mode) draft)
6891 (describe-bindings prefix))
6892 (let ((item `((lambda (prefix)
6893 (with-current-buffer ,(current-buffer)
6894 (gnus-article-describe-bindings prefix)))
6896 ;; Loading `help-mode' here is necessary if `describe-bindings'
6897 ;; is replaced with something, e.g. `helm-descbinds'.
6898 (require 'help-mode)
6899 (with-current-buffer (let (help-xref-following) (help-buffer))
6900 (setq help-xref-stack-item item)))))
6902 (defun gnus-article-reply-with-original (&optional wide)
6903 "Start composing a reply mail to the current message.
6904 The text in the region will be yanked. If the region isn't active,
6905 the entire article will be yanked."
6907 (let ((article (cdr gnus-article-current))
6909 (if (not (and transient-mark-mode mark-active))
6910 (with-current-buffer gnus-summary-buffer
6911 (gnus-summary-reply (list (list article)) wide))
6912 (setq contents (buffer-substring (point) (mark t)))
6913 ;; Deactivate active regions.
6914 (when transient-mark-mode
6915 (setq mark-active nil))
6916 (with-current-buffer gnus-summary-buffer
6918 (list (list article contents)) wide)))))
6920 (defun gnus-article-wide-reply-with-original ()
6921 "Start composing a wide reply mail to the current message.
6922 The text in the region will be yanked. If the region isn't active,
6923 the entire article will be yanked."
6925 (gnus-article-reply-with-original t))
6927 (defun gnus-article-followup-with-original ()
6928 "Compose a followup to the current article.
6929 The text in the region will be yanked. If the region isn't active,
6930 the entire article will be yanked."
6932 (let ((article (cdr gnus-article-current))
6934 (if (not (and transient-mark-mode mark-active))
6935 (with-current-buffer gnus-summary-buffer
6936 (gnus-summary-followup (list (list article))))
6937 (setq contents (buffer-substring (point) (mark t)))
6938 ;; Deactivate active regions.
6939 (when transient-mark-mode
6940 (setq mark-active nil))
6941 (with-current-buffer gnus-summary-buffer
6942 (gnus-summary-followup
6943 (list (list article contents)))))))
6945 (defun gnus-article-hide (&optional arg force)
6946 "Hide all the gruft in the current article.
6947 This means that signatures, cited text and (some) headers will be
6949 If given a prefix, show the hidden text instead."
6950 (interactive (append (gnus-article-hidden-arg) (list 'force)))
6951 (gnus-with-article-buffer
6952 (article-hide-headers arg)
6953 (article-hide-list-identifiers)
6954 (gnus-article-hide-citation-maybe arg force)
6955 (article-hide-signature arg)))
6957 (defun gnus-check-group-server ()
6958 ;; Make sure the connection to the server is alive.
6959 (unless (gnus-server-opened
6960 (gnus-find-method-for-group gnus-newsgroup-name))
6961 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
6962 (gnus-request-group gnus-newsgroup-name t)))
6964 (declare-function nneething-get-file-name "nneething" (id))
6966 (defun gnus-request-article-this-buffer (article group)
6967 "Get an article and insert it into this buffer."
6968 (let (do-update-line sparse-header)
6972 (gnus-kill-all-overlays)
6973 (setq group (or group gnus-newsgroup-name))
6975 ;; Using `gnus-request-article' directly will insert the article into
6976 ;; `nntp-server-buffer' - so we'll save some time by not having to
6977 ;; copy it from the server buffer into the article buffer.
6979 ;; We only request an article by message-id when we do not have the
6980 ;; headers for it, so we'll have to get those.
6981 (when (stringp article)
6982 (gnus-read-header article))
6984 ;; If the article number is negative, that means that this article
6985 ;; doesn't belong in this newsgroup (possibly), so we find its
6986 ;; message-id and request it by id instead of number.
6987 (when (and (numberp article)
6989 (get-buffer gnus-summary-buffer)
6990 (gnus-buffer-exists-p gnus-summary-buffer))
6991 (with-current-buffer gnus-summary-buffer
6992 (let ((header (gnus-summary-article-header article)))
6995 ((memq article gnus-newsgroup-sparse)
6996 ;; This is a sparse gap article.
6997 (setq do-update-line article)
6998 (setq article (mail-header-id header))
6999 (setq sparse-header (gnus-read-header article))
7000 (setq gnus-newsgroup-sparse
7001 (delq article gnus-newsgroup-sparse)))
7003 ;; It's a real article.
7004 (setq article (mail-header-id header)))
7006 ;; It is an extracted pseudo-article.
7007 (setq article 'pseudo)
7008 (gnus-request-pseudo-article header))))
7010 (let ((method (gnus-find-method-for-group
7011 gnus-newsgroup-name)))
7012 (when (and (eq (car method) 'nneething)
7014 (let ((dir (nneething-get-file-name
7015 (mail-header-id header))))
7016 (when (and (stringp dir)
7017 (file-directory-p dir))
7018 (setq article 'nneething)
7019 (gnus-group-enter-directory dir))))))))
7022 ;; Refuse to select canceled articles.
7023 ((and (numberp article)
7025 (get-buffer gnus-summary-buffer)
7026 (gnus-buffer-exists-p gnus-summary-buffer)
7027 (eq (cdr (with-current-buffer gnus-summary-buffer
7028 (assq article gnus-newsgroup-reads)))
7029 gnus-canceled-mark))
7031 ;; We first check `gnus-original-article-buffer'.
7032 ((and (get-buffer gnus-original-article-buffer)
7034 (with-current-buffer gnus-original-article-buffer
7035 (and (equal (car gnus-original-article) group)
7036 (eq (cdr gnus-original-article) article))))
7037 ;; `insert-buffer-substring' would incorrectly use the
7038 ;; equivalent of string-make-multibyte which amount to decoding
7039 ;; with locale-coding-system, causing failure of
7040 ;; subsequent decoding.
7041 (insert (string-to-multibyte
7042 (with-current-buffer gnus-original-article-buffer
7043 (buffer-substring (point-min) (point-max)))))
7045 ;; Check the backlog.
7046 ((and gnus-keep-backlog
7047 (gnus-backlog-request-article group article (current-buffer)))
7049 ;; Check asynchronous pre-fetch.
7050 ((gnus-async-request-fetched-article group article (current-buffer))
7051 (gnus-async-prefetch-next group article gnus-summary-buffer)
7052 (when (and (numberp article) gnus-keep-backlog)
7053 (gnus-backlog-enter-article group article (current-buffer)))
7056 ((and gnus-use-cache
7058 (gnus-cache-request-article article group))
7060 ;; Check the agent cache.
7061 ((gnus-agent-request-article article group)
7063 ;; Get the article and put into the article buffer.
7064 ((or (stringp article)
7066 (let ((gnus-override-method gnus-override-method)
7067 (methods (and (stringp article)
7068 (with-current-buffer gnus-summary-buffer
7069 (gnus-refer-article-methods))))
7070 (backend (car (gnus-find-method-for-group
7071 gnus-newsgroup-name)))
7073 (inhibit-read-only t))
7074 (when (and (null gnus-override-method)
7076 (setq gnus-override-method (pop methods)))
7079 (gnus-kill-all-overlays)
7080 (let ((gnus-newsgroup-name group))
7081 (gnus-check-group-server))
7083 ((gnus-request-article article group (current-buffer))
7084 (when (numberp article)
7085 (gnus-async-prefetch-next group article
7086 gnus-summary-buffer)
7087 (when gnus-keep-backlog
7088 (gnus-backlog-enter-article
7089 group article (current-buffer)))
7090 (when (and gnus-agent
7091 (gnus-agent-group-covered-p group))
7092 (gnus-agent-store-article article group)))
7093 (setq result 'article))
7095 (setq gnus-override-method (pop methods)))
7096 ((not (string-match "^400 "
7097 (nnheader-get-report backend)))
7098 ;; If we get 400 server disconnect, reconnect and
7099 ;; retry; otherwise, assume the article has expired.
7100 (setq result 'done))))
7101 (and (eq result 'article) 'article)))
7105 ;; Associate this article with the current summary buffer.
7106 (setq gnus-article-current-summary gnus-summary-buffer)
7108 ;; Take the article from the original article buffer
7109 ;; and place it in the buffer it's supposed to be in.
7110 (when (and (get-buffer gnus-article-buffer)
7111 (equal (buffer-name (current-buffer))
7112 (buffer-name (get-buffer gnus-article-buffer))))
7114 (if (get-buffer gnus-original-article-buffer)
7115 (set-buffer gnus-original-article-buffer)
7116 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
7117 (buffer-disable-undo)
7118 (setq major-mode 'gnus-original-article-mode)
7119 (setq buffer-read-only t))
7120 (let ((inhibit-read-only t))
7122 (insert-buffer-substring gnus-article-buffer))
7123 (setq gnus-original-article (cons group article)))
7126 (run-hooks 'gnus-article-decode-hook)
7127 ;; Mark article as decoded or not.
7128 (setq gnus-article-decoded-p gnus-article-decode-hook))
7130 ;; Update sparse articles.
7131 (when (and do-update-line
7132 (or (numberp article)
7134 (let ((buf (current-buffer)))
7135 (set-buffer gnus-summary-buffer)
7136 (gnus-summary-update-article do-update-line sparse-header)
7137 (gnus-summary-goto-subject do-update-line nil t)
7138 (set-window-point (gnus-get-buffer-window (current-buffer) t)
7140 (set-buffer buf))))))
7142 (defun gnus-block-private-groups (group)
7143 "Allows images in newsgroups to be shown, blocks images in all
7145 (if (or (gnus-news-group-p group)
7146 (gnus-member-of-valid 'global group))
7147 ;; Block nothing in news groups.
7149 ;; Block everything anywhere else.
7152 (defun gnus-blocked-images ()
7153 (if (functionp gnus-blocked-images)
7154 (funcall gnus-blocked-images gnus-newsgroup-name)
7155 gnus-blocked-images))
7161 (defcustom gnus-article-edit-mode-hook nil
7162 "Hook run in article edit mode buffers."
7163 :group 'gnus-article-various
7166 (defvar gnus-article-edit-done-function nil)
7168 (defvar gnus-article-edit-mode-map nil)
7170 ;; Should we be using derived.el for this?
7171 (unless gnus-article-edit-mode-map
7172 (setq gnus-article-edit-mode-map (make-keymap))
7173 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
7175 (gnus-define-keys gnus-article-edit-mode-map
7176 "\C-c?" describe-mode
7177 "\C-c\C-c" gnus-article-edit-done
7178 "\C-c\C-k" gnus-article-edit-exit
7179 "\C-c\C-f\C-t" message-goto-to
7180 "\C-c\C-f\C-o" message-goto-from
7181 "\C-c\C-f\C-b" message-goto-bcc
7182 ;;"\C-c\C-f\C-w" message-goto-fcc
7183 "\C-c\C-f\C-c" message-goto-cc
7184 "\C-c\C-f\C-s" message-goto-subject
7185 "\C-c\C-f\C-r" message-goto-reply-to
7186 "\C-c\C-f\C-n" message-goto-newsgroups
7187 "\C-c\C-f\C-d" message-goto-distribution
7188 "\C-c\C-f\C-f" message-goto-followup-to
7189 "\C-c\C-f\C-m" message-goto-mail-followup-to
7190 "\C-c\C-f\C-k" message-goto-keywords
7191 "\C-c\C-f\C-u" message-goto-summary
7192 "\C-c\C-f\C-i" message-insert-or-toggle-importance
7193 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
7194 "\C-c\C-b" message-goto-body
7195 "\C-c\C-i" message-goto-signature
7197 "\C-c\C-t" message-insert-to
7198 "\C-c\C-n" message-insert-newsgroups
7199 "\C-c\C-o" message-sort-headers
7200 "\C-c\C-e" message-elide-region
7201 "\C-c\C-v" message-delete-not-region
7202 "\C-c\C-z" message-kill-to-signature
7203 "\M-\r" message-newline-and-reformat
7204 "\C-c\C-a" mml-attach-file
7205 "\C-a" message-beginning-of-line
7207 "\M-;" comment-region)
7209 (gnus-define-keys (gnus-article-edit-wash-map
7210 "\C-c\C-w" gnus-article-edit-mode-map)
7211 "f" gnus-article-edit-full-stops))
7214 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
7216 ["Fetch To" message-insert-to t]
7217 ["Fetch Newsgroups" message-insert-newsgroups t]
7219 ["To" message-goto-to t]
7220 ["From" message-goto-from t]
7221 ["Subject" message-goto-subject t]
7222 ["Cc" message-goto-cc t]
7223 ["Reply-To" message-goto-reply-to t]
7224 ["Summary" message-goto-summary t]
7225 ["Keywords" message-goto-keywords t]
7226 ["Newsgroups" message-goto-newsgroups t]
7227 ["Followup-To" message-goto-followup-to t]
7228 ["Mail-Followup-To" message-goto-mail-followup-to t]
7229 ["Distribution" message-goto-distribution t]
7230 ["Body" message-goto-body t]
7231 ["Signature" message-goto-signature t]))
7233 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
7234 "Major mode for editing articles.
7235 This is an extended text-mode.
7237 \\{gnus-article-edit-mode-map}"
7238 (make-local-variable 'gnus-article-edit-done-function)
7239 (make-local-variable 'gnus-prev-winconf)
7240 (set (make-local-variable 'font-lock-defaults)
7241 '(message-font-lock-keywords t))
7242 (set (make-local-variable 'mail-header-separator) "")
7243 (set (make-local-variable 'gnus-article-edit-mode) t)
7244 (easy-menu-add message-mode-field-menu message-mode-map)
7246 (setq buffer-read-only nil)
7247 (buffer-enable-undo)
7250 (defun gnus-article-edit (&optional force)
7251 "Edit the current article.
7252 This will have permanent effect only in mail groups.
7253 If FORCE is non-nil, allow editing of articles even in read-only
7256 (when (and (not force)
7257 (gnus-group-read-only-p))
7258 (error "The current newsgroup does not support article editing"))
7259 (gnus-with-article-buffer
7260 (article-date-original))
7261 (gnus-article-edit-article
7263 `(lambda (no-highlight)
7265 (gnus-summary-edit-article-done
7266 ,(or (mail-header-references gnus-current-headers) "")
7267 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
7269 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
7270 "Start editing the contents of the current article buffer."
7271 (let ((winconf (current-window-configuration)))
7272 (set-buffer gnus-article-buffer)
7273 (let ((message-auto-save-directory
7274 ;; Don't associate the article buffer with a draft file.
7276 (gnus-article-edit-mode))
7277 (funcall start-func)
7278 (set-buffer-modified-p nil)
7279 (gnus-configure-windows 'edit-article)
7280 (setq gnus-article-edit-done-function exit-func)
7281 (setq gnus-prev-winconf winconf)
7283 (gnus-message 6 "C-c C-c to end edits"))))
7285 (defun gnus-article-edit-done (&optional arg)
7286 "Update the article edits and exit."
7288 (let ((func gnus-article-edit-done-function)
7289 (buf (current-buffer))
7290 (start (window-start))
7291 (winconf gnus-prev-winconf))
7292 (widen) ;; Widen it in case that users narrowed the buffer.
7295 ;; The cache and backlog have to be flushed somewhat.
7296 (when gnus-keep-backlog
7297 (gnus-backlog-remove-article
7298 (car gnus-article-current) (cdr gnus-article-current)))
7299 ;; Flush original article as well.
7300 (gnus-flush-original-article-buffer)
7301 (when gnus-use-cache
7302 (gnus-cache-update-article
7303 (car gnus-article-current) (cdr gnus-article-current)))
7304 ;; We remove all text props from the article buffer.
7305 (kill-all-local-variables)
7306 (set-text-properties (point-min) (point-max) nil)
7308 (set-window-configuration winconf)
7310 (set-window-start (get-buffer-window buf) start)
7311 (set-window-point (get-buffer-window buf) (point)))
7312 (gnus-summary-show-article))
7314 (defun gnus-flush-original-article-buffer ()
7315 (when (get-buffer gnus-original-article-buffer)
7316 (with-current-buffer gnus-original-article-buffer
7317 (setq gnus-original-article nil))))
7319 (defun gnus-article-edit-exit ()
7320 "Exit the article editing without updating."
7322 (when (or (not (buffer-modified-p))
7323 (yes-or-no-p "Article modified; kill anyway? "))
7324 (let ((curbuf (current-buffer))
7326 (window-start (window-start)))
7328 (if (gnus-buffer-live-p gnus-original-article-buffer)
7329 (insert-buffer-substring gnus-original-article-buffer))
7330 (let ((winconf gnus-prev-winconf))
7331 (kill-all-local-variables)
7333 (set-window-configuration winconf)
7334 ;; Tippy-toe some to make sure that point remains where it was.
7335 (save-current-buffer
7337 (set-window-start (get-buffer-window (current-buffer)) window-start)
7339 (gnus-summary-show-article)))
7341 (defun gnus-article-edit-full-stops ()
7342 "Interactively repair spacing at end of sentences."
7345 (goto-char (point-min))
7346 (search-forward-regexp "^$" nil t)
7347 (let ((case-fold-search nil))
7348 (query-replace-regexp "\\([.!?][])}]* \\)\\([[({A-Z]\\)" "\\1 \\2"))))
7351 ;;; Article highlights
7354 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
7356 ;;; Internal Variables:
7358 (defcustom gnus-button-url-regexp
7360 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|"
7361 "nntp\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)"
7362 "\\(//[-a-z0-9_.]+:[0-9]*\\)?"
7363 (let ((chars "-a-z0-9_=#$@~%&*+\\/[:word:]")
7367 ;; Match paired parentheses, e.g. in Wikipedia URLs:
7368 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
7369 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)"
7370 "\\(?:" "[" chars punct "]+" "[" chars "]" "\\)?"
7372 "[" chars punct "]+" "[" chars "]"
7375 "Regular expression that matches URLs."
7377 :group 'gnus-article-buttons
7380 (defcustom gnus-button-valid-fqdn-regexp "\\([-A-Za-z0-9]+\\.\\)+[A-Za-z]+"
7381 "Regular expression that matches a valid FQDN."
7383 :group 'gnus-article-buttons
7386 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
7387 (defcustom gnus-button-valid-localpart-regexp
7388 "[a-z0-9$%(*-=?[_][^<>\")!;:,{}\n\t @]*"
7389 "Regular expression that matches a localpart of mail addresses or MIDs."
7391 :group 'gnus-article-buttons
7394 (defcustom gnus-button-man-handler 'manual-entry
7395 "Function to use for displaying man pages.
7396 The function must take at least one argument with a string naming the
7399 :type '(choice (function-item :tag "Man" manual-entry)
7400 (function-item :tag "Woman" woman)
7401 (function :tag "Other"))
7402 :group 'gnus-article-buttons)
7404 (defcustom gnus-button-mid-or-mail-regexp
7405 (concat "\\b\\(<?" gnus-button-valid-localpart-regexp "@"
7406 gnus-button-valid-fqdn-regexp
7408 "Regular expression that matches a message ID or a mail address."
7410 :group 'gnus-article-buttons
7413 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
7414 "What to do when the button on a string as \"foo123@bar.invalid\" is pushed.
7415 Strings like this can be either a message ID or a mail address. If it is one
7416 of the symbols `mid' or `mail', Gnus will always assume that the string is a
7417 message ID or a mail address, respectively. If this variable is set to the
7418 symbol `ask', always query the user what do do. If it is a function, this
7419 function will be called with the string as its only argument. The function
7420 must return `mid', `mail', `invalid' or `ask'."
7422 :group 'gnus-article-buttons
7423 :type '(choice (function-item :tag "Heuristic function"
7424 gnus-button-mid-or-mail-heuristic)
7429 (defcustom gnus-button-mid-or-mail-heuristic-alist
7430 '((-10.0 . ".+\\$.+@")
7433 (-5.0 . "\\+[^+]*\\+.*@") ;; # two plus signs
7434 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7435 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7436 (-1.0 . "^[^a-z]+@")
7438 (-5.0 . "\\.[0-9][0-9]+.*@") ;; "\.[0-9]{2,}.*\@"
7439 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7440 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7441 (-5.0 . "\\...?.?@") ;; (-5.0 . "\..{1,3}\@")
7444 (-1.0 . "^[0-9][0-9]")
7446 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7447 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7448 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7449 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7451 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7452 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7455 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7457 ;; compensation for TDMA dated mail addresses:
7458 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7460 (-20.0 . "\\.fsf@") ;; Gnus
7463 (-20.0 . "^alpine\\.")
7464 (-20.0 . "_-_") ;; Subject change in thread
7466 (-20.0 . "\\.ln@") ;; leafnode
7467 (-30.0 . "@ID-[0-9]+\\.[a-zA-Z]+\\.dfncis\\.de")
7468 (-30.0 . "@4[Aa][Xx]\\.com") ;; Forte Agent
7470 ;; (5.0 . "") ;; $local_part_len <= 7
7471 (10.0 . "^[^0-9]+@")
7472 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7473 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7476 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7478 (0.5 . "^[A-Z][a-z]")
7479 (0.5 . "^[A-Z][a-z][a-z]")
7480 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7481 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7482 "An alist of (RATE . REGEXP) pairs for `gnus-button-mid-or-mail-heuristic'.
7484 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7485 address. The REGEXP is processed with `case-fold-search' set to nil."
7487 :group 'gnus-article-buttons
7488 :type '(repeat (cons (number :tag "Rate")
7489 (regexp :tag "Regexp"))))
7491 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7492 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7493 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7494 address, `ask' if unsure and `invalid' if the string is invalid."
7495 (let ((case-fold-search nil)
7496 (list gnus-button-mid-or-mail-heuristic-alist)
7497 (result 0) rate regexp lpartlen elem)
7499 (length (replace-regexp-in-string "^\\(.*\\)@.*$" "\\1" mid-or-mail)))
7500 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7501 ;; Certain special cases...
7504 "^0[0-9]+-[0-9][0-9][0-9][0-9]@t-online\\.de$\\|"
7505 "^[0-9]+\\.[0-9]+@compuserve\\|"
7506 "@public\\.gmane\\.org")
7508 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7509 (setq result 'mail))
7510 (when (string-match "@.*@\\| " mid-or-mail)
7511 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7512 (setq result 'invalid))
7513 ;; Nothing more to do, if result is not a number here...
7514 (when (numberp result)
7516 (setq elem (car list)
7520 (when (string-match regexp mid-or-mail)
7521 (setq result (+ result rate))
7523 9 "`%s' matched `%s', rate `%s', result `%s'."
7524 mid-or-mail regexp rate result)))
7525 (when (<= lpartlen 7)
7526 (setq result (+ result 5.0))
7527 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7528 mid-or-mail result))
7529 (when (>= lpartlen 12)
7530 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7532 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7533 ;; Long local part should contain realname if e-mail address,
7534 ;; too many digits: message-id.
7535 ;; $score -= 5.0 + 0.1 * $local_part_len;
7536 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7537 (setq result (+ result rate))
7539 9 "Many digits in `%s', rate `%s', result `%s'."
7540 mid-or-mail rate result))
7541 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*@"
7543 ;; Too few vowels [^aeiouy]{4,}.*@
7544 (setq result (+ result -5.0))
7546 9 "Few vowels in `%s', rate `%s', result `%s'."
7547 mid-or-mail -5.0 result))
7549 (setq result (+ result 5.0))
7551 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7552 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7553 ;; Maybe we should make this a customizable alist: (condition . 'result)
7555 ((symbolp result) result)
7556 ;; Now convert number into proper results:
7557 ((< result -10.0) 'mid)
7558 ((> result 10.0) 'mail)
7561 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7562 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7563 (url-mid (concat "news" ":" mid-or-mail))
7564 (url-mailto (concat "mailto" ":" mid-or-mail)))
7565 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7566 (when (fboundp pref)
7568 ;; get rid of surrounding angles...
7570 (replace-regexp-in-string "^<\\|>$" "" mid-or-mail)))
7571 (if (or (eq 'mid guessed) (eq 'mail guessed))
7575 (save-window-excursion
7576 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7579 (cond ((eq pref 'mid)
7580 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7581 (gnus-button-handle-news url-mid))
7583 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7584 (gnus-url-mailto url-mailto))
7585 (t (gnus-message 3 "Invalid string.")))))
7587 (defun gnus-button-handle-custom (fun arg)
7588 "Call function FUN on argument ARG.
7589 Both FUN and ARG are supposed to be strings. ARG will be passed
7590 as a symbol to FUN."
7591 (funcall (intern fun)
7592 (if (string-match "^customize-apropos" fun)
7596 (defvar gnus-button-handle-describe-prefix "^\\(C-h\\|<?[Ff]1>?\\)")
7598 (defun gnus-button-handle-describe-function (url)
7599 "Call `describe-function' when pushing the corresponding URL button."
7602 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url))))
7604 (defun gnus-button-handle-describe-variable (url)
7605 "Call `describe-variable' when pushing the corresponding URL button."
7608 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url))))
7610 (defun gnus-button-handle-symbol (url)
7611 "Display help on variable or function.
7612 Calls `describe-variable' or `describe-function'."
7613 (let ((sym (intern url)))
7615 ((fboundp sym) (describe-function sym))
7616 ((boundp sym) (describe-variable sym))
7617 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7619 (defun gnus-button-handle-describe-key (url)
7620 "Call `describe-key' when pushing the corresponding URL button."
7622 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url))
7623 (keys (ignore-errors (eval `(kbd ,key-string)))))
7626 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7628 (defun gnus-button-handle-apropos (url)
7629 "Call `apropos' when pushing the corresponding URL button."
7630 (apropos (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7632 (defun gnus-button-handle-apropos-command (url)
7633 "Call `apropos' when pushing the corresponding URL button."
7635 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7637 (defun gnus-button-handle-apropos-variable (url)
7638 "Call `apropos' when pushing the corresponding URL button."
7640 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7642 (defun gnus-button-handle-apropos-documentation (url)
7643 "Call `apropos' when pushing the corresponding URL button."
7644 (apropos-documentation
7645 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7647 (defun gnus-button-handle-library (url)
7648 "Call `locate-library' when pushing the corresponding URL button."
7649 (gnus-message 9 "url=`%s'" url)
7650 (let* ((lib (locate-library url))
7651 (file (replace-regexp-in-string "\\.elc" ".el" (or lib ""))))
7653 (gnus-message 1 "Cannot locale library `%s'." url)
7654 (find-file-read-only file))))
7656 (defcustom gnus-button-man-level 5
7657 "*Integer that says how many man-related buttons Gnus will show.
7658 The higher the number, the more buttons will appear and the more false
7659 positives are possible. Note that you can set this variable local to
7660 specific groups. Setting it higher in Unix groups is probably a good idea.
7661 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7662 how to set variables in specific groups."
7664 :group 'gnus-article-buttons
7665 :link '(custom-manual "(gnus)Group Parameters")
7668 (defcustom gnus-button-emacs-level 5
7669 "*Integer that says how many emacs-related buttons Gnus will show.
7670 The higher the number, the more buttons will appear and the more false
7671 positives are possible. Note that you can set this variable local to
7672 specific groups. Setting it higher in Emacs or Gnus related groups is
7673 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7674 `gnus-parameters' on how to set variables in specific groups."
7676 :group 'gnus-article-buttons
7677 :link '(custom-manual "(gnus)Group Parameters")
7680 (defcustom gnus-button-message-level 5
7681 "*Integer that says how many buttons for news or mail messages will appear.
7682 The higher the number, the more buttons will appear and the more false
7683 positives are possible."
7684 ;; mail addresses, MIDs, URLs for news, ...
7686 :group 'gnus-article-buttons
7689 (defcustom gnus-button-browse-level 5
7690 "*Integer that says how many buttons for browsing will appear.
7691 The higher the number, the more buttons will appear and the more false
7692 positives are possible."
7693 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7695 :group 'gnus-article-buttons
7698 (defcustom gnus-button-alist
7699 '(("<\\(url:[>\n\t ]*?\\)?\\(nntp\\|news\\):[>\n\t ]*\\([^>\n\t ]*@[^>\n\t ]*\\)>"
7700 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7701 ((concat "\\b\\(nntp\\|news\\):\\("
7702 gnus-button-valid-localpart-regexp "@[a-z0-9.-]+[a-z]\\)")
7703 0 t gnus-button-handle-news 2)
7704 ("\\(\\b<\\(url:[>\n\t ]*\\)?\\(nntp\\|news\\):[>\n\t ]*\\(//\\)?\\([^>\n\t ]*\\)>\\)"
7705 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7706 ("\\b\\(nntp\\|news\\):\\(//\\)?\\([^'\">\n\t ]+\\)"
7707 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7708 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7709 ("\\bmid:\\(//\\)?\\([^'\">\n\t ]+@[^'\">\n\t /]+\\)"
7710 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7711 ("\\bin\\( +article\\| +message\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)"
7712 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7713 ("\\b\\(mid\\|message-id\\):? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)"
7714 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7715 ("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>"
7716 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7717 ;; RFC 2368 (The mailto URL scheme)
7718 ("\\bmailto:\\([-a-z.@_+0-9%=?&/]+\\)"
7719 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7720 ("\\bmailto:\\([^ \n\t]+\\)"
7721 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7722 ;; Info Konqueror style <info:/foo/bar baz>.
7723 ;; Must come before " Gnus home-grown style".
7724 ("\\binfo://?\\([^'\">\n\t]+\\)"
7725 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7726 ;; Info, Gnus home-grown style (deprecated) <info://foo/bar+baz>
7727 ("\\binfo://\\([^'\">\n\t ]+\\)"
7728 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7729 ;; Info GNOME style <info:foo#bar_baz>
7730 ("\\binfo:\\([^('\n\t\r \"><][^'\n\t\r \"><]*\\)"
7731 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7732 ;; Info KDE style <info:(foo)bar baz>
7733 ("<\\(info:\\(([^)]+)[^>\n\r]*\\)\\)>"
7734 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7735 ("\\((Info-goto-node\\|(info\\)[ \t\n]*\\(\"[^\"]*\"\\))" 0
7736 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7737 ("\\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,]*\\)\\)?"
7738 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7739 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7741 ("M-x[ \t\n]\\(customize-[^ ]+\\)[ \t\n]RET[ \t\n]\\([^ ]+\\)[ \t\n]RET\\>" 0
7742 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7743 ;; Emacs help commands
7744 ("M-x[ \t\n]+apropos[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7745 ;; regexp doesn't match arguments containing ` '.
7746 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7747 ("M-x[ \t\n]+apropos-command[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7748 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7749 ("M-x[ \t\n]+apropos-variable[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7750 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7751 ("M-x[ \t\n]+apropos-documentation[ \t\n]+RET[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7752 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7753 ;; The following entries may lead to many false positives so don't enable
7754 ;; them by default (use a high button level).
7755 ("/\\([a-z][-a-z0-9]+\\.el\\)\\>[^.?]"
7756 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7757 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7758 ("['`‘]\\([a-z][-a-z0-9]+\\.el\\)['’]"
7759 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7760 ("['`‘]\\([a-z][a-z0-9]+-[a-z0-9]+-[-a-z0-9]*[a-z]\\|\\(gnus\\|message\\)-[-a-z]+\\)['’]"
7761 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7762 ("['`‘]\\([a-z][a-z0-9]+-[a-z]+\\)['’]"
7763 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7764 ("(setq[ \t\n]+\\([a-z][a-z0-9]+-[-a-z0-9]+\\)[ \t\n]+.+)"
7765 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7766 ("\\bM-x[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7767 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7768 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+f[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7769 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7770 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+v[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET\\>"
7771 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7772 ("['`‘]\\(\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+k[ \t\n]+\\([^'’]+\\)\\)['’]"
7773 ;; Unlike the other regexps we really have to require quoting
7774 ;; here to determine where it ends.
7775 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7776 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7777 ("<URL: *\\([^\n<>]*\\)>"
7778 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7779 ;; RFC 2396 (2.4.3., delims) ...
7780 ("\"URL: *\\([^\n\"]*\\)\""
7781 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7783 (gnus-button-url-regexp
7784 0 (>= gnus-button-browse-level 0) browse-url 0)
7786 ("\\b\\([a-z][a-z]+([1-9])\\)\\W"
7787 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7788 gnus-button-handle-man 1)
7789 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7790 ("\\b\\([a-z][-_.a-z0-9]+([1-9])\\)\\W"
7791 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7792 gnus-button-handle-man 1)
7793 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7794 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7795 ("\\b\\(\\(?:[a-z][-+_.:a-z0-9]+([1-9][X1a-z]*)\\)\\|\\b\\(?:X([1-9])\\)\\)\\W"
7796 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7797 ;; Recognizing patches to .el files. This is somewhat obscure,
7798 ;; but considering the percentage of Gnus users who hack Emacs
7800 ("^--- \\([^ .]+\\.el\\).*\n.*\n@@ -?\\([0-9]+\\)" 1
7801 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7802 ("^\\*\\*\\* \\([^ .]+\\.el\\).*\n.*\n\\*+\n\\*\\*\\* \\([0-9]+\\)" 1
7803 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7804 ;; MID or mail: To avoid too many false positives we don't try to catch
7805 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7806 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7807 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7808 ;; so that non-ambiguous entries (see above) match first.
7809 (gnus-button-mid-or-mail-regexp
7810 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7811 "*Alist of regexps matching buttons in article bodies.
7813 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7814 REGEXP: is the string (case insensitive) matching text around the button (can
7815 also be Lisp expression evaluating to a string),
7816 BUTTON: is the number of the regexp grouping actually matching the button,
7817 FORM: is a Lisp expression which must eval to true for the button to
7819 CALLBACK: is the function to call when the user push this button, and each
7820 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7822 CALLBACK can also be a variable, in that case the value of that
7823 variable it the real callback function."
7824 :group 'gnus-article-buttons
7825 :type '(repeat (list (choice regexp variable sexp)
7826 (integer :tag "Button")
7828 (function :tag "Callback")
7831 (integer :tag "Regexp group")))))
7832 (put 'gnus-button-alist 'risky-local-variable t)
7834 (defcustom gnus-header-button-alist
7835 '(("^\\(References\\|Message-I[Dd]\\|^In-Reply-To\\):" "<[^<>]+>"
7836 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7837 ("^\\(From\\|Reply-To\\):" ": *\\(.+\\)$"
7838 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7839 ("^\\(Cc\\|To\\):" "[^ \t\n<>,()\"]+@[^ \t\n<>,()\"]+"
7840 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7841 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7842 0 (>= gnus-button-browse-level 0) browse-url 0)
7843 ("^Subject:" gnus-button-url-regexp
7844 0 (>= gnus-button-browse-level 0) browse-url 0)
7845 ("^[^:]+:" gnus-button-url-regexp
7846 0 (>= gnus-button-browse-level 0) browse-url 0)
7847 ("^OpenPGP:.*url=" gnus-button-url-regexp
7848 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7849 ("^[^:]+:" "\\bmailto:\\([-a-z.@_+0-9%=?&/]+\\)"
7850 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7851 ("^[^:]+:" "\\(<\\(url: \\)?\\(nntp\\|news\\):\\([^>\n ]*\\)>\\)"
7852 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7853 "*Alist of headers and regexps to match buttons in article heads.
7855 This alist is very similar to `gnus-button-alist', except that each
7856 alist has an additional HEADER element first in each entry:
7858 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7860 HEADER is a regexp to match a header. For a fuller explanation, see
7861 `gnus-button-alist'."
7862 :group 'gnus-article-buttons
7863 :group 'gnus-article-headers
7864 :type '(repeat (list (regexp :tag "Header")
7865 (choice regexp variable)
7866 (integer :tag "Button")
7868 (function :tag "Callback")
7871 (integer :tag "Regexp group")))))
7872 (put 'gnus-header-button-alist 'risky-local-variable t)
7876 (defun gnus-article-push-button (event)
7877 "Check text under the mouse pointer for a callback function.
7878 If the text under the mouse pointer has a `gnus-callback' property,
7879 call it with the value of the `gnus-data' text property."
7881 (set-buffer (window-buffer (posn-window (event-start event))))
7882 (let* ((pos (posn-point (event-start event)))
7883 (data (get-text-property pos 'gnus-data))
7884 (fun (get-text-property pos 'gnus-callback)))
7887 (funcall fun data))))
7889 (defun gnus-article-press-button ()
7890 "Check text at point for a callback function.
7891 If the text at point has a `gnus-callback' property,
7892 call it with the value of the `gnus-data' text property."
7894 (let ((data (get-text-property (point) 'gnus-data))
7895 (fun (get-text-property (point) 'gnus-callback)))
7897 (funcall fun data))))
7899 (defun gnus-article-highlight (&optional force)
7900 "Highlight current article.
7901 This function calls `gnus-article-highlight-headers',
7902 `gnus-article-highlight-citation',
7903 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7904 do the highlighting. See the documentation for those functions."
7905 (interactive (list 'force))
7906 (gnus-article-highlight-headers)
7907 (gnus-article-highlight-citation force)
7908 (gnus-article-highlight-signature)
7909 (gnus-article-add-buttons)
7910 (gnus-article-add-buttons-to-head))
7912 (defun gnus-article-highlight-some (&optional _force)
7913 "Highlight current article.
7914 This function calls `gnus-article-highlight-headers',
7915 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7916 do the highlighting. See the documentation for those functions."
7917 (interactive (list 'force))
7918 (gnus-article-highlight-headers)
7919 (gnus-article-highlight-signature)
7920 (gnus-article-add-buttons))
7922 (defun gnus-article-highlight-headers ()
7923 "Highlight article headers as specified by `gnus-header-face-alist'."
7925 (gnus-with-article-headers
7926 (let (regexp header-face field-face from hpoints fpoints)
7927 (dolist (entry gnus-header-face-alist)
7928 (goto-char (point-min))
7929 (setq regexp (concat "^\\("
7930 (if (string-equal "" (nth 0 entry))
7934 header-face (nth 1 entry)
7935 field-face (nth 2 entry))
7936 (while (and (re-search-forward regexp nil t)
7940 (unless (search-forward ":" nil t)
7942 (when (and header-face
7943 (not (memq (point) hpoints)))
7944 (push (point) hpoints)
7945 (put-text-property from (point) 'face header-face))
7946 (when (and field-face
7947 (not (memq (setq from (point)) fpoints)))
7949 (if (re-search-forward "^[^ \t]" nil t)
7951 (goto-char (point-max)))
7952 (put-text-property from (point) 'face field-face)))))))
7954 (defun gnus-article-highlight-signature ()
7955 "Highlight the signature in an article.
7956 It does this by highlighting everything after
7957 `gnus-signature-separator' using the face `gnus-signature'."
7959 (gnus-with-article-buffer
7960 (let ((inhibit-point-motion-hooks t))
7962 (when (and gnus-signature-face
7963 (gnus-article-narrow-to-signature))
7964 (overlay-put (make-overlay (point-min) (point-max) nil t)
7965 'face gnus-signature-face)
7967 (gnus-article-search-signature)
7968 (let ((start (match-beginning 0))
7969 (end (set-marker (make-marker) (1+ (match-end 0)))))
7970 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
7973 (defun gnus-button-in-region-p (b e prop)
7974 "Say whether PROP exists in the region."
7975 (text-property-not-all b e prop nil))
7977 (defun gnus-article-add-buttons ()
7978 "Find external references in the article and make buttons of them.
7979 \"External references\" are things like Message-IDs and URLs, as
7980 specified by `gnus-button-alist'."
7982 (gnus-with-article-buffer
7983 (let ((inhibit-point-motion-hooks t)
7984 (case-fold-search t)
7985 (alist gnus-button-alist)
7987 ;; We skip the headers.
7990 (while (setq entry (pop alist))
7991 (setq regexp (eval (car entry)))
7993 (while (re-search-forward regexp nil t)
7994 (let ((start (match-beginning (nth 1 entry)))
7995 (end (match-end (nth 1 entry)))
7996 (from (match-beginning 0)))
7997 (when (and (eval (nth 2 entry))
7998 (not (gnus-button-in-region-p
7999 start end 'gnus-callback)))
8000 ;; That optional form returned non-nil, so we add the
8002 (setq from (set-marker (make-marker) from))
8003 (unless (and (eq (car entry) 'gnus-button-url-regexp)
8004 (gnus-article-extend-url-button from start end))
8005 (gnus-article-add-button start end
8006 'gnus-button-push (list from entry))
8009 'gnus-string (buffer-substring-no-properties
8012 (defun gnus-article-extend-url-button (beg start end)
8013 "Extend url button if url is folded into two or more lines.
8014 Return non-nil if button is extended. BEG is a marker that points to
8015 the beginning position of a text containing url. START and END are
8016 the endpoints of a url button before it is extended. The concatenated
8017 url is put as the `gnus-button-url' overlay property on the button."
8018 (let ((opoint (point))
8019 (points (list start end))
8024 (not (looking-at "[\t ]*[\">]")))
8028 "\\(?:\"\\|\\(<\\)\\)[\t ]*\\(?:url[\t ]*:[\t ]*\\)?\\'"
8029 (buffer-substring (point-at-bol) start)))
8031 (setq url (list (buffer-substring start end))
8032 delim (if (match-beginning 1) ">" "\""))
8034 (setq regexp (concat
8035 (when (and (looking-at
8036 message-cite-prefix-regexp)
8037 (< (match-end 0) start))
8038 (regexp-quote (match-string 0)))
8040 [\t ]*\\(?:\\([^\t\n \">]+\\)[\t ]*$\\|\\([^\t\n \">]*\\)[\t ]*"
8044 (and (looking-at regexp)
8047 (push (or (match-string 2)
8050 (push (setq end (or (match-end 2)
8053 (push (or (match-beginning 2)
8054 (match-beginning 1))
8056 (match-beginning 2)))
8057 (let (gnus-article-mouse-face widget-mouse-face)
8059 (gnus-article-add-button (pop points) (pop points)
8061 (list beg (assq 'gnus-button-url-regexp
8062 gnus-button-alist)))))
8063 (let ((overlay (make-overlay start end)))
8064 (overlay-put overlay 'evaporate t)
8065 (overlay-put overlay 'gnus-button-url
8066 (list (mapconcat 'identity (nreverse url) "")))
8067 (when gnus-article-mouse-face
8068 (overlay-put overlay 'mouse-face gnus-article-mouse-face)))
8070 (goto-char opoint))))
8072 ;; Add buttons to the head of an article.
8073 (defun gnus-article-add-buttons-to-head ()
8074 "Add buttons to the head of the article."
8076 (gnus-with-article-headers
8078 (dolist (entry gnus-header-button-alist)
8079 ;; Each alist entry.
8080 (goto-char (point-min))
8081 (while (re-search-forward (car entry) nil t)
8082 ;; Each header matching the entry.
8083 (setq beg (match-beginning 0))
8084 (setq end (or (and (re-search-forward "^[^ \t]" nil t)
8085 (match-beginning 0))
8088 (while (re-search-forward (eval (nth 1 entry)) end t)
8089 ;; Each match within a header.
8090 (let* ((entry (cdr entry))
8091 (start (match-beginning (nth 1 entry)))
8092 (end (match-end (nth 1 entry)))
8093 (form (nth 2 entry)))
8094 (goto-char (match-end 0))
8096 (gnus-article-add-button
8097 start end (nth 3 entry)
8098 (buffer-substring (match-beginning (nth 4 entry))
8099 (match-end (nth 4 entry)))))))
8100 (goto-char end))))))
8102 ;;; External functions:
8104 (defun gnus-article-add-button (from to fun &optional data text)
8105 "Create a button between FROM and TO with callback FUN and data DATA."
8106 (when gnus-article-button-face
8107 (overlay-put (make-overlay from to nil t)
8108 'face gnus-article-button-face))
8109 (add-text-properties
8111 (nconc (and gnus-article-mouse-face
8112 (list 'mouse-face gnus-article-mouse-face))
8113 (list 'gnus-callback fun)
8114 (and data (list 'gnus-data data))))
8115 (widget-convert-button 'link from to :action 'gnus-widget-press-button
8116 :help-echo (or text "Follow the link")
8117 :keymap gnus-url-button-map))
8119 (defun gnus-article-copy-string ()
8120 "Copy the string in the button to the kill ring."
8122 (gnus-article-check-buffer)
8123 (let ((data (get-text-property (point) 'gnus-string)))
8127 (copy-region-as-kill (point-min) (point-max))
8128 (message "Copied %s" data)))))
8130 ;;; Internal functions:
8132 (defun gnus-article-set-globals ()
8133 (with-current-buffer gnus-summary-buffer
8134 (gnus-set-global-variables)))
8136 (defun gnus-signature-toggle (end)
8137 (gnus-with-article-buffer
8138 (let ((inhibit-point-motion-hooks t))
8139 (if (text-property-any end (point-max) 'article-type 'signature)
8141 (gnus-delete-wash-type 'signature)
8142 (gnus-remove-text-properties-when
8143 'article-type 'signature end (point-max)
8144 (cons 'article-type (cons 'signature
8145 gnus-hidden-properties))))
8146 (gnus-add-wash-type 'signature)
8147 (gnus-add-text-properties-when
8148 'article-type nil end (point-max)
8149 (cons 'article-type (cons 'signature
8150 gnus-hidden-properties)))))
8151 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
8152 (gnus-set-mode-line 'article))))
8154 (defun gnus-button-push (marker-and-entry)
8155 ;; Push button starting at MARKER.
8157 (let* ((marker (car marker-and-entry))
8158 (entry (cadr marker-and-entry))
8159 (regexp (car entry))
8160 (inhibit-point-motion-hooks t))
8162 ;; This is obviously true, or something bad is happening :)
8163 ;; But we need it to have the match-data
8164 (when (looking-at (or (if (symbolp regexp)
8165 (symbol-value regexp)
8167 (let ((fun (nth 3 entry))
8168 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
8169 (get-char-property marker 'gnus-button-url))
8170 (mapcar (lambda (group)
8171 (let ((string (match-string group)))
8172 (set-text-properties
8173 0 (length string) nil string)
8175 (nthcdr 4 entry)))))
8181 (fboundp (symbol-value fun)))
8182 (apply (symbol-value fun) args))
8184 (gnus-message 1 "You must define `%S' to use this button"
8185 (cons fun args)))))))))
8187 (defun gnus-parse-news-url (url)
8188 (let (scheme server port group message-id articles)
8191 (goto-char (point-min))
8192 (when (looking-at "\\([A-Za-z]+\\):")
8193 (setq scheme (match-string 1))
8194 (goto-char (match-end 0)))
8195 (when (looking-at "//\\([^:/]+\\)\\(:?\\)\\([0-9]+\\)?/")
8196 (setq server (match-string 1))
8197 (setq port (if (stringp (match-string 3))
8198 (string-to-number (match-string 3))
8200 (goto-char (match-end 0)))
8203 ((looking-at "\\(.*@.*\\)")
8204 (setq message-id (match-string 1)))
8205 ((looking-at "\\([^/]+\\)/\\([-0-9]+\\)")
8206 (setq group (match-string 1)
8207 articles (split-string (match-string 2) "-")))
8208 ((looking-at "\\([^/]+\\)/?")
8209 (setq group (match-string 1)))
8211 (error "Unknown news URL syntax"))))
8212 (list scheme server port group message-id articles)))
8214 (defvar nntp-port-number)
8216 (defun gnus-button-handle-news (url)
8218 (destructuring-bind (_scheme server port group message-id _articles)
8219 (gnus-parse-news-url url)
8222 (with-current-buffer gnus-summary-buffer
8224 (let ((gnus-refer-article-method
8225 (nconc (list (list 'nntp server))
8226 gnus-refer-article-method))
8227 (nntp-port-number (or port "nntp")))
8228 (gnus-message 7 "Fetching %s with %s"
8229 message-id gnus-refer-article-method)
8230 (gnus-summary-refer-article message-id))
8231 (gnus-summary-refer-article message-id))))
8233 (gnus-button-fetch-group url)))))
8235 (defun gnus-button-patch (library line)
8236 "Visit an Emacs Lisp library LIBRARY on line LINE."
8238 (let ((file (locate-library (file-name-nondirectory library))))
8240 (error "Couldn't find library %s" library))
8242 (goto-char (point-min))
8243 (forward-line (1- (string-to-number line)))))
8245 (defun gnus-button-handle-man (url)
8247 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8248 (when (eq gnus-button-man-handler 'woman)
8249 (setq url (replace-regexp-in-string "([1-9][X1a-z]*).*\\'" "" url)))
8250 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8251 (funcall gnus-button-man-handler url))
8253 (defun gnus-button-handle-info-url (url)
8254 "Fetch an info URL."
8255 (setq url (subst-char-in-string ?+ ?\ url))
8257 ((string-match "^\\([^:/]+\\)?/\\(.*\\)" url)
8258 (gnus-info-find-node
8259 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
8261 ")" (gnus-url-unhex-string (match-string 2 url)))))
8262 ((string-match "([^)\"]+)[^\"]+" url)
8264 (replace-regexp-in-string
8265 "\"" "" (replace-regexp-in-string "[\n\t ]+" " " url)))
8266 (gnus-info-find-node url))
8267 (t (error "Can't parse %s" url))))
8269 (defun gnus-button-handle-info-url-gnome (url)
8270 "Fetch GNOME style info URL."
8271 (setq url (subst-char-in-string ?_ ?\ url))
8272 (if (string-match "\\([^#]+\\)#?\\(.*\\)" url)
8273 (gnus-info-find-node
8275 (gnus-url-unhex-string
8276 (match-string 1 url))
8278 (or (gnus-url-unhex-string
8279 (match-string 2 url))
8281 (error "Can't parse %s" url)))
8283 (defun gnus-button-handle-info-url-kde (url)
8284 "Fetch KDE style info URL."
8285 (gnus-info-find-node (gnus-url-unhex-string url)))
8287 ;; (info) will autoload info.el
8288 (declare-function Info-menu "info" (menu-item &optional fork))
8289 (declare-function Info-index-next "info" (num))
8291 (defun gnus-button-handle-info-keystrokes (url)
8292 "Call `info' when pushing the corresponding URL button."
8293 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
8294 (let (node indx comma)
8296 (concat "\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+i[ \t\n]+d?[ \t\n]?m[ \t\n]+"
8297 "\\([^ ]+ ?[^ ]+\\)[ \t\n]+RET"
8298 "\\([ \t\n]+i[ \t\n]+[^ ]+ ?[^ ]+[ \t\n]+RET\\>"
8299 "\\(?:[ \t\n,]*\\)\\)?")
8301 (setq node (match-string 2 url)
8302 indx (match-string 3 url))
8303 (error "Can't parse %s" url))
8307 (when (> (length indx) 0)
8308 (string-match (concat "[ \t\n]+i[ \t\n]+\\([^ ]+ ?[^ ]+\\)[ \t\n]+RET\\>"
8311 (setq comma (match-string 2 indx))
8312 (setq indx (match-string 1 indx))
8315 (dotimes (i (with-temp-buffer
8317 ;; Note: the XEmacs version of `how-many' takes
8318 ;; no optional argument.
8319 (goto-char (point-min))
8321 (Info-index-next 1)))
8324 (autoload 'pgg-snarf-keys-region "pgg")
8325 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
8326 (declare-function pgg-display-output-buffer "pgg" (start end status))
8328 (defun gnus-button-openpgp (url)
8329 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
8331 (mm-url-insert-file-contents-external url)
8332 (pgg-snarf-keys-region (point-min) (point-max))
8333 (pgg-display-output-buffer nil nil nil)))
8335 (defun gnus-button-message-id (message-id)
8337 (with-current-buffer gnus-summary-buffer
8338 (gnus-summary-refer-article message-id)))
8340 (defun gnus-button-fetch-group (address &rest _ignore)
8341 "Fetch GROUP specified by ADDRESS."
8342 (when (string-match "\\`\\(nntp\\|news\\):\\(//\\)?\\(.*\\)\\'"
8344 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
8345 ;; for nntp:// and news://
8346 (setq address (match-string 3 address)))
8347 (if (not (string-match "[:/]" address))
8348 ;; This is just a simple group url.
8349 (gnus-group-read-ephemeral-group address gnus-select-method)
8352 "^\\([^:/]+\\)\\(:\\([^/]+\\)\\)?/\\([^/]+\\)\\(/\\([0-9]+\\)\\)?"
8354 (error "Can't parse %s" address)
8355 (gnus-group-read-ephemeral-group
8356 (match-string 4 address)
8357 `(nntp ,(match-string 1 address)
8358 (nntp-address ,(match-string 1 address))
8359 (nntp-port-number ,(if (match-end 3)
8360 (match-string 3 address)
8363 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
8365 (defun gnus-url-parse-query-string (query &optional downcase)
8366 (let (retval pairs cur key val)
8367 (setq pairs (split-string query "&"))
8369 (setq cur (car pairs)
8371 (if (not (string-match "=" cur))
8373 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
8374 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
8376 (setq key (downcase key)))
8377 (setq cur (assoc key retval))
8379 (setcdr cur (cons val (cdr cur)))
8380 (setq retval (cons (list key val) retval)))))
8383 (defun gnus-url-mailto (url)
8384 ;; Send mail to someone
8385 (setq url (replace-regexp-in-string "\n" " " url))
8386 (when (string-match "mailto:/*\\(.*\\)" url)
8387 (setq url (substring url (match-beginning 1) nil)))
8388 (let* ((args (gnus-url-parse-query-string
8389 (if (string-match "^\\?" url)
8391 (if (string-match "^\\([^?]+\\)\\?\\(.*\\)" url)
8392 (concat "to=" (match-string 1 url) "&"
8393 (match-string 2 url))
8394 (concat "to=" url)))))
8395 (subject (cdr-safe (assoc "subject" args)))
8399 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8402 (message-position-on-field (caar args)))
8403 (insert (replace-regexp-in-string
8405 (mapconcat 'identity (reverse (cdar args)) ", ") nil t))
8406 (setq args (cdr args)))
8409 (message-goto-subject))))
8411 (defun gnus-button-embedded-url (address)
8412 "Activate ADDRESS with `browse-url'."
8413 (browse-url (gnus-strip-whitespace address)))
8415 ;;; Next/prev buttons in the article buffer.
8417 (defvar gnus-next-page-line-format "%{%(Next page...%)%}\n")
8418 (defvar gnus-prev-page-line-format "%{%(Previous page...%)%}\n")
8420 (defvar gnus-prev-page-map
8421 (let ((map (make-sparse-keymap)))
8422 (define-key map [mouse-2] 'gnus-button-prev-page)
8423 (define-key map "\r" 'gnus-button-prev-page)
8426 (defvar gnus-next-page-map
8427 (let ((map (make-sparse-keymap)))
8428 (define-key map [mouse-2] 'gnus-button-next-page)
8429 (define-key map "\r" 'gnus-button-next-page)
8432 (defun gnus-insert-prev-page-button ()
8434 (inhibit-read-only t))
8436 gnus-prev-page-line-format nil
8437 `(keymap ,gnus-prev-page-map
8439 gnus-callback gnus-article-button-prev-page
8440 article-type annotation))
8442 ;; Exclude a newline.
8445 (when gnus-article-button-face
8446 (overlay-put (make-overlay b e nil t)
8447 'face gnus-article-button-face))
8448 (widget-convert-button
8450 :action 'gnus-button-prev-page
8451 :button-keymap gnus-prev-page-map)))
8453 (defun gnus-button-next-page (&optional _args _more-args)
8454 "Go to the next page."
8456 (let ((win (selected-window)))
8457 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8458 (gnus-article-next-page)
8459 (select-window win)))
8461 (defun gnus-button-prev-page (&optional _args _more-args)
8462 "Go to the prev page."
8464 (let ((win (selected-window)))
8465 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8466 (gnus-article-prev-page)
8467 (select-window win)))
8469 (defun gnus-insert-next-page-button ()
8471 (inhibit-read-only t))
8472 (gnus-eval-format gnus-next-page-line-format nil
8473 `(keymap ,gnus-next-page-map
8475 gnus-callback gnus-article-button-next-page
8476 article-type annotation))
8478 ;; Exclude a newline.
8481 (when gnus-article-button-face
8482 (overlay-put (make-overlay b e nil t)
8483 'face gnus-article-button-face))
8484 (widget-convert-button
8486 :action 'gnus-button-next-page
8487 :button-keymap gnus-next-page-map)))
8489 (defun gnus-article-button-next-page (_arg)
8490 "Go to the next page."
8492 (let ((win (selected-window)))
8493 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8494 (gnus-article-next-page)
8495 (select-window win)))
8497 (defun gnus-article-button-prev-page (_arg)
8498 "Go to the prev page."
8500 (let ((win (selected-window)))
8501 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8502 (gnus-article-prev-page)
8503 (select-window win)))
8505 (defvar gnus-decode-header-methods
8506 '(mail-decode-encoded-word-region)
8507 "List of methods used to decode headers.
8509 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8510 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8511 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8512 whose names match REGEXP.
8515 \((\"chinese\" . gnus-decode-encoded-word-region-by-guess)
8516 mail-decode-encoded-word-region
8517 (\"chinese\" . rfc1843-decode-region))
8520 (defvar gnus-decode-header-methods-cache nil)
8522 (defun gnus-multi-decode-header (start end)
8523 "Apply the functions from `gnus-encoded-word-methods' that match."
8524 (unless (and gnus-decode-header-methods-cache
8525 (eq gnus-newsgroup-name
8526 (car gnus-decode-header-methods-cache)))
8527 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8528 (dolist (x gnus-decode-header-methods)
8530 (nconc gnus-decode-header-methods-cache (list x))
8531 (if (and gnus-newsgroup-name
8532 (string-match (car x) gnus-newsgroup-name))
8533 (nconc gnus-decode-header-methods-cache
8535 (let ((xlist gnus-decode-header-methods-cache))
8538 (narrow-to-region start end)
8540 (funcall (pop xlist) (point-min) (point-max))))))
8543 ;;; Treatment top-level handling.
8546 (defvar gnus-inhibit-article-treatments nil)
8548 ;; Dynamic variables.
8549 (defvar part-number) ;FIXME: Lacks a "gnus-" prefix.
8550 (defvar total-parts) ;FIXME: Lacks a "gnus-" prefix.
8551 (defvar gnus-treat-type)
8552 (defvar gnus-treat-condition)
8553 (defvar gnus-treat-length)
8555 (defun gnus-treat-article (condition
8556 &optional part-num total type)
8557 (let ((gnus-treat-condition condition)
8558 (part-number part-num)
8560 (gnus-treat-type type)
8561 (gnus-treat-length (- (point-max) (point-min)))
8562 (alist gnus-treatment-function-alist)
8563 (article-goto-body-goes-to-point-min-p t)
8567 (let ((list gnus-article-treat-types))
8569 (when (string-match (pop list) type)
8570 (throw 'found t)))))))
8571 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8573 (gnus-run-hooks 'gnus-part-display-hook)
8574 (dolist (elem alist)
8577 (when (gnus-buffer-live-p gnus-summary-buffer)
8578 (set-buffer gnus-summary-buffer))
8579 (symbol-value (car elem))))
8580 (when (and (or (consp val)
8582 (or (not gnus-inhibit-article-treatments)
8583 (eq gnus-treat-condition 'head))
8584 (gnus-treat-predicate val)
8585 (or (not (get (car elem) 'highlight))
8588 (funcall (cadr elem)))))))
8590 (defun gnus-treat-predicate (val)
8594 (gnus-treat-condition
8595 (eq gnus-treat-condition val))
8597 (stringp (car val)))
8598 (apply 'gnus-or (mapcar `(lambda (s)
8599 (string-match s ,(or gnus-newsgroup-name "")))
8602 (let ((pred (pop val)))
8605 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8607 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8609 (not (gnus-treat-predicate (car val))))
8611 (equal (car val) gnus-treat-type))
8615 (error "%S is not a valid predicate" pred)))))
8623 (eq part-number total-parts))
8625 (< gnus-treat-length val))
8627 (error "%S is not a valid value" val))))
8629 (defun gnus-article-encrypt-body (protocol &optional n)
8630 "Encrypt the article body."
8633 (or gnus-article-encrypt-protocol
8634 (gnus-completing-read "Encrypt protocol"
8635 (mapcar 'car gnus-article-encrypt-protocol-alist)
8637 current-prefix-arg))
8638 ;; User might hit `K E' instead of `K e', so prompt once.
8639 (when (and gnus-article-encrypt-protocol
8641 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8642 (error "Encrypt aborted")))
8643 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8645 (error "Can't find the encrypt protocol %s" protocol))
8646 (if (member gnus-newsgroup-name '("nndraft:delayed"
8649 (error "Can't encrypt the article in group %s"
8650 gnus-newsgroup-name))
8651 (gnus-summary-iterate n
8652 (with-current-buffer gnus-summary-buffer
8653 (let ((mail-parse-charset gnus-newsgroup-charset)
8654 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8655 (summary-buffer gnus-summary-buffer)
8657 (gnus-set-global-variables)
8658 (when (gnus-group-read-only-p)
8659 (error "The current newsgroup does not support article encrypt"))
8660 (gnus-summary-show-article t)
8662 (or (mail-header-references gnus-current-headers) ""))
8663 (set-buffer gnus-article-buffer)
8664 (let* ((inhibit-read-only t)
8666 (mapcar (lambda (field)
8667 (and (save-restriction
8668 (message-narrow-to-head)
8669 (goto-char (point-min))
8670 (search-forward field nil t))
8672 (message-narrow-to-field)
8674 (delete-region (point-min) (point-max))
8676 '("Content-Type:" "Content-Transfer-Encoding:"
8677 "Content-Disposition:"))))
8678 (message-narrow-to-head)
8679 (message-remove-header "MIME-Version")
8680 (goto-char (point-max))
8681 (setq point (point))
8682 (insert (apply 'concat headers))
8684 (narrow-to-region point (point-max))
8685 (let ((message-options message-options))
8686 (message-options-set 'message-sender user-mail-address)
8687 (message-options-set 'message-recipients user-mail-address)
8688 (message-options-set 'message-sign-encrypt 'not)
8690 (goto-char (point-min))
8691 (insert "MIME-Version: 1.0\n")
8693 (gnus-summary-edit-article-done
8694 references nil summary-buffer t))
8695 (when gnus-keep-backlog
8696 (gnus-backlog-remove-article
8697 (car gnus-article-current) (cdr gnus-article-current)))
8698 (gnus-flush-original-article-buffer)
8699 (when gnus-use-cache
8700 (gnus-cache-update-article
8701 (car gnus-article-current) (cdr gnus-article-current))))))))
8703 (defvar gnus-mime-security-button-line-format "%{%([[%t:%i]%D]%)%}\n"
8704 "The following specs can be used:
8705 %t The security MIME type
8708 %D Details if button is pressed")
8710 (defvar gnus-mime-security-button-end-line-format "%{%([[End of %t]%D]%)%}\n"
8711 "The following specs can be used:
8712 %t The security MIME type
8715 %D Details if button is pressed")
8717 (defvar gnus-mime-security-button-line-format-alist
8718 '((?t gnus-tmp-type ?s)
8719 (?i gnus-tmp-info ?s)
8720 (?d gnus-tmp-details ?s)
8721 (?D gnus-tmp-pressed-details ?s)))
8723 (defvar gnus-mime-security-button-commands
8724 '((gnus-article-press-button "\r" "Show Detail")
8728 (gnus-mime-security-save-part "o" "Save...")
8737 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8740 (defvar gnus-mime-security-button-map
8741 (let ((map (make-sparse-keymap)))
8742 (define-key map [mouse-2] 'gnus-article-push-button)
8743 (define-key map [down-mouse-3] 'gnus-mime-security-button-menu)
8744 (dolist (c gnus-mime-security-button-commands)
8745 (define-key map (cadr c) (car c)))
8749 gnus-mime-security-button-menu gnus-mime-security-button-map
8750 "Security button menu."
8754 (unless (eq (car c) 'undefined)
8755 (vector (caddr c) (car c) :active t)))
8756 gnus-mime-security-button-commands))))
8758 (defun gnus-mime-security-button-menu (event prefix)
8759 "Construct a context-sensitive menu of security commands."
8760 (interactive "e\nP")
8761 (save-window-excursion
8762 (let ((pos (event-start event)))
8763 (select-window (posn-window pos))
8764 (goto-char (posn-point pos))
8765 (gnus-article-check-buffer)
8766 (popup-menu gnus-mime-security-button-menu nil prefix))))
8768 (defvar gnus-mime-security-details-buffer nil)
8770 (defvar gnus-mime-security-button-pressed nil)
8772 (defvar gnus-mime-security-show-details-inline t
8773 "If non-nil, show details in the article buffer.")
8775 (defun gnus-mime-security-verify-or-decrypt (handle)
8776 (mm-remove-parts (cdr handle))
8777 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8778 point (inhibit-read-only t))
8780 (goto-char (car region)))
8781 (setq point (point))
8782 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8783 (let* ((mm-verify-option 'known)
8784 (mm-decrypt-option 'known)
8785 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8786 (unless (eq nparts (cdr handle))
8787 (mm-destroy-parts (cdr handle))
8788 (setcdr handle nparts))))
8789 (gnus-mime-display-security handle)
8791 (delete-region (point) (cdr region))
8792 (set-marker (car region) nil)
8793 (set-marker (cdr region) nil))
8796 (defun gnus-mime-security-show-details (handle)
8797 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8799 (gnus-message 5 "No details.")
8800 (if gnus-mime-security-show-details-inline
8801 (let ((gnus-mime-security-button-pressed
8802 (not (get-text-property (point) 'gnus-mime-details)))
8803 (gnus-mime-security-button-line-format
8804 (get-text-property (point) 'gnus-line-format))
8805 (inhibit-read-only t))
8807 (while (eq (get-text-property (point) 'gnus-line-format)
8808 gnus-mime-security-button-line-format)
8812 (narrow-to-region (point) (point))
8813 (gnus-insert-mime-security-button handle))
8814 (delete-region (point)
8815 (or (text-property-not-all
8818 gnus-mime-security-button-line-format)
8821 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8822 (with-current-buffer gnus-mime-security-details-buffer
8825 (setq gnus-mime-security-details-buffer
8826 (gnus-get-buffer-create "*MIME Security Details*")))
8827 (with-current-buffer gnus-mime-security-details-buffer
8829 (goto-char (point-min)))
8830 (pop-to-buffer gnus-mime-security-details-buffer)))))
8832 (defun gnus-mime-security-press-button (handle)
8834 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8835 (gnus-mime-security-show-details handle)
8836 (gnus-mime-security-verify-or-decrypt handle))))
8838 (defun gnus-insert-mime-security-button (handle &optional _displayed)
8839 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8842 (or (nth 2 (assoc protocol mm-verify-function-alist))
8843 (nth 2 (assoc protocol mm-decrypt-function-alist))
8845 (if (equal (car handle) "multipart/signed")
8846 " Signed" " Encrypted")
8849 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8852 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8853 gnus-tmp-pressed-details
8855 (setq gnus-tmp-details
8856 (if gnus-tmp-details
8857 (concat "\n" gnus-tmp-details)
8859 (setq gnus-tmp-pressed-details
8860 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8865 gnus-mime-security-button-line-format
8866 gnus-mime-security-button-line-format-alist
8867 `(keymap ,gnus-mime-security-button-map
8868 gnus-callback gnus-mime-security-press-button
8869 gnus-line-format ,gnus-mime-security-button-line-format
8870 gnus-mime-details ,gnus-mime-security-button-pressed
8871 article-type annotation
8874 ;; Exclude a newline.
8877 (when gnus-article-button-face
8878 (overlay-put (make-overlay b e nil t)
8879 'face gnus-article-button-face))
8880 (widget-convert-button
8883 :action 'gnus-widget-press-button
8884 :button-keymap gnus-mime-security-button-map
8888 "%S: show detail; %S: more options"
8892 (defun gnus-mime-display-security (handle)
8894 (narrow-to-region (point) (point))
8895 (unless (gnus-unbuttonized-mime-type-p (car handle))
8896 (gnus-insert-mime-security-button handle))
8897 (gnus-mime-display-part (cadr handle))
8900 (unless (gnus-unbuttonized-mime-type-p (car handle))
8901 (let ((gnus-mime-security-button-line-format
8902 gnus-mime-security-button-end-line-format))
8903 (gnus-insert-mime-security-button handle)))
8904 (mm-set-handle-multipart-parameter
8905 handle 'gnus-region (cons (point-min-marker) (point-max-marker)))
8906 (goto-char (point-max))))
8908 (defun gnus-mime-security-run-function (function)
8909 "Run FUNCTION with the security part under point."
8910 (gnus-article-check-buffer)
8911 (let ((data (get-text-property (point) 'gnus-data))
8913 (when (and (stringp (car-safe data))
8914 (setq buffer (mm-handle-multipart-original-buffer data))
8915 (setq handle (cadr data)))
8916 (if (bufferp (mm-handle-buffer handle))
8918 (setq handle (cons buffer (copy-sequence (cdr handle))))
8919 (mm-handle-set-undisplayer handle nil))
8920 (setq handle (mm-make-handle
8922 (mm-handle-multipart-ctl-parameter handle 'protocol)
8923 nil nil nil nil nil nil)))
8924 (funcall function handle))))
8926 (defun gnus-mime-security-save-part ()
8927 "Save the security part under point."
8929 (gnus-mime-security-run-function 'mm-save-part))
8931 (defun gnus-mime-security-pipe-part ()
8932 "Pipe the security part under point to a process."
8934 (gnus-mime-security-run-function 'mm-pipe-part))
8938 (run-hooks 'gnus-art-load-hook)
8940 ;;; gnus-art.el ends here