1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
28 ;; For Emacs <22.2 and XEmacs.
30 (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
34 (defvar w3m-minor-mode-map)
49 (autoload 'gnus-msg-mail "gnus-msg" nil t)
50 (autoload 'gnus-button-mailto "gnus-msg")
51 (autoload 'gnus-button-reply "gnus-msg" nil t)
52 (autoload 'parse-time-string "parse-time" nil nil)
53 (autoload 'ansi-color-apply-on-region "ansi-color")
54 (autoload 'mm-url-insert-file-contents-external "mm-url")
55 (autoload 'mm-extern-cache-contents "mm-extern")
57 (defgroup gnus-article nil
59 :link '(custom-manual "(gnus)Article Buffer")
62 (defgroup gnus-article-treat nil
63 "Treating article parts."
64 :link '(custom-manual "(gnus)Article Hiding")
67 (defgroup gnus-article-hiding nil
68 "Hiding article parts."
69 :link '(custom-manual "(gnus)Article Hiding")
72 (defgroup gnus-article-highlight nil
73 "Article highlighting."
74 :link '(custom-manual "(gnus)Article Highlighting")
78 (defgroup gnus-article-signature nil
80 :link '(custom-manual "(gnus)Article Signature")
83 (defgroup gnus-article-headers nil
85 :link '(custom-manual "(gnus)Hiding Headers")
88 (defgroup gnus-article-washing nil
89 "Special commands on articles."
90 :link '(custom-manual "(gnus)Article Washing")
93 (defgroup gnus-article-emphasis nil
94 "Fontisizing articles."
95 :link '(custom-manual "(gnus)Article Fontisizing")
98 (defgroup gnus-article-saving nil
100 :link '(custom-manual "(gnus)Saving Articles")
101 :group 'gnus-article)
103 (defgroup gnus-article-mime nil
104 "Worshiping the MIME wonder."
105 :link '(custom-manual "(gnus)Using MIME")
106 :group 'gnus-article)
108 (defgroup gnus-article-buttons nil
109 "Pushable buttons in the article buffer."
110 :link '(custom-manual "(gnus)Article Buttons")
111 :group 'gnus-article)
113 (defgroup gnus-article-various nil
114 "Other article options."
115 :link '(custom-manual "(gnus)Misc Article")
116 :group 'gnus-article)
118 (defcustom gnus-ignored-headers
121 (concat "^" header ":"))
122 '("Path" "Expires" "Date-Received" "References" "Xref" "Lines"
123 "Relay-Version" "Message-ID" "Approved" "Sender" "Received"
124 "X-UIDL" "MIME-Version" "Return-Path" "In-Reply-To"
125 "Content-Type" "Content-Transfer-Encoding" "X-WebTV-Signature"
126 "X-MimeOLE" "X-MSMail-Priority" "X-Priority" "X-Loop"
127 "X-Authentication-Warning" "X-MIME-Autoconverted" "X-Face"
128 "X-Attribution" "X-Originating-IP" "Delivered-To"
129 "NNTP-[-A-Za-z]+" "Distribution" "X-no-archive" "X-Trace"
130 "X-Complaints-To" "X-NNTP-Posting-Host" "X-Orig.*"
131 "Abuse-Reports-To" "Cache-Post-Path" "X-Article-Creation-Date"
132 "X-Poster" "X-Mail2News-Path" "X-Server-Date" "X-Cache"
133 "Originator" "X-Problems-To" "X-Auth-User" "X-Post-Time"
134 "X-Admin" "X-UID" "Resent-[-A-Za-z]+" "X-Mailing-List"
135 "Precedence" "Original-[-A-Za-z]+" "X-filename" "X-Orcpt"
136 "Old-Received" "X-Pgp" "X-Auth" "X-From-Line"
137 "X-Gnus-Article-Number" "X-Majordomo" "X-Url" "X-Sender"
138 "MBOX-Line" "Priority" "X400-[-A-Za-z]+"
139 "Status" "X-Gnus-Mail-Source" "Cancel-Lock"
140 "X-FTN" "X-EXP32-SerialNo" "Encoding" "Importance"
141 "Autoforwarded" "Original-Encoded-Information-Types" "X-Ya-Pop3"
142 "X-Face-Version" "X-Vms-To" "X-ML-NAME" "X-ML-COUNT"
143 "Mailing-List" "X-finfo" "X-md5sum" "X-md5sum-Origin"
144 "X-Sun-Charset" "X-Accept-Language" "X-Envelope-Sender"
145 "List-[A-Za-z]+" "X-Listprocessor-Version"
146 "X-Received" "X-Distribute" "X-Sequence" "X-Juno-Line-Breaks"
147 "X-Notes-Item" "X-MS-TNEF-Correlator" "x-uunet-gateway"
148 "X-Received" "Content-length" "X-precedence"
149 "X-Authenticated-User" "X-Comment" "X-Report" "X-Abuse-Info"
150 "X-HTTP-Proxy" "X-Mydeja-Info" "X-Copyright" "X-No-Markup"
151 "X-Abuse-Info" "X-From_" "X-Accept-Language" "Errors-To"
152 "X-BeenThere" "X-Mailman-Version" "List-Help" "List-Post"
153 "List-Subscribe" "List-Id" "List-Unsubscribe" "List-Archive"
154 "X-Content-length" "X-Posting-Agent" "Original-Received"
155 "X-Request-PGP" "X-Fingerprint" "X-WRIEnvto" "X-WRIEnvfrom"
156 "X-Virus-Scanned" "X-Delivery-Agent" "Posted-Date" "X-Gateway"
157 "X-Local-Origin" "X-Local-Destination" "X-UserInfo1"
158 "X-Received-Date" "X-Hashcash" "Face" "X-DMCA-Notifications"
159 "X-Abuse-and-DMCA-Info" "X-Postfilter" "X-Gpg-.*" "X-Disclaimer"
160 "Envelope-To" "X-Spam-Score" "System-Type" "X-Injected-Via-Gmane"
161 "X-Gmane-NNTP-Posting-Host" "Jabber-ID" "Archived-At"
162 "Envelope-Sender" "Envelope-Recipients"))
163 "*All headers that start with this regexp will be hidden.
164 This variable can also be a list of regexps of headers to be ignored.
165 If `gnus-visible-headers' is non-nil, this variable will be ignored."
166 :type '(choice :custom-show nil
169 :group 'gnus-article-hiding)
171 (defcustom gnus-visible-headers
172 "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^[BGF]?Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Mail-Followup-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From:\\|^X-Sent:"
173 "*All headers that do not match this regexp will be hidden.
174 This variable can also be a list of regexp of headers to remain visible.
175 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
177 (repeat :value-to-internal (lambda (widget value)
178 (custom-split-regexp-maybe value))
179 :match (lambda (widget value)
181 (widget-editable-list-match widget value)))
183 (const :tag "Use gnus-ignored-headers" nil)
185 :group 'gnus-article-hiding)
187 (defcustom gnus-sorted-header-list
188 '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:"
189 "^Followup-To:" "^To:" "^Cc:" "^Date:" "^Organization:")
190 "*This variable is a list of regular expressions.
191 If it is non-nil, headers that match the regular expressions will
192 be placed first in the article buffer in the sequence specified by
194 :type '(repeat regexp)
195 :group 'gnus-article-hiding)
197 (defcustom gnus-boring-article-headers '(empty followup-to reply-to)
198 "Headers that are only to be displayed if they have interesting data.
199 Possible values in this list are:
201 'empty Headers with no content.
202 'newsgroups Newsgroup identical to Gnus group.
203 'to-address To identical to To-address.
204 'to-list To identical to To-list.
205 'cc-list CC identical to To-list.
206 'followup-to Followup-to identical to Newsgroups.
207 'reply-to Reply-to identical to From.
208 'date Date less than four days old.
209 'long-to To and/or Cc longer than 1024 characters.
210 'many-to Multiple To and/or Cc."
211 :type '(set (const :tag "Headers with no content." empty)
212 (const :tag "Newsgroups identical to Gnus group." newsgroups)
213 (const :tag "To identical to To-address." to-address)
214 (const :tag "To identical to To-list." to-list)
215 (const :tag "CC identical to To-list." cc-list)
216 (const :tag "Followup-to identical to Newsgroups." followup-to)
217 (const :tag "Reply-to identical to From." reply-to)
218 (const :tag "Date less than four days old." date)
219 (const :tag "To and/or Cc longer than 1024 characters." long-to)
220 (const :tag "Multiple To and/or Cc headers." many-to))
221 :group 'gnus-article-hiding)
223 (defcustom gnus-article-skip-boring nil
224 "Skip over text that is not worth reading.
225 By default, if you set this t, then Gnus will display citations and
226 signatures, but will never scroll down to show you a page consisting
227 only of boring text. Boring text is controlled by
228 `gnus-article-boring-faces'."
231 :group 'gnus-article-hiding)
233 (defcustom gnus-signature-separator '("^-- $" "^-- *$")
234 "Regexp matching signature separator.
235 This can also be a list of regexps. In that case, it will be checked
236 from head to tail looking for a separator. Searches will be done from
237 the end of the buffer."
238 :type '(choice :format "%{%t%}: %[Value Menu%]\n%v"
240 (repeat :tag "List of regexp" regexp))
241 :group 'gnus-article-signature)
243 (defcustom gnus-signature-limit nil
244 "Provide a limit to what is considered a signature.
245 If it is a number, no signature may not be longer (in characters) than
246 that number. If it is a floating point number, no signature may be
247 longer (in lines) than that number. If it is a function, the function
248 will be called without any parameters, and if it returns nil, there is
249 no signature in the buffer. If it is a string, it will be used as a
250 regexp. If it matches, the text in question is not a signature.
252 This can also be a list of the above values."
253 :type '(choice (const nil)
257 (regexp :value ".*"))
258 :group 'gnus-article-signature)
260 (defcustom gnus-hidden-properties '(invisible t intangible t)
261 "Property list to use for hiding text."
263 :group 'gnus-article-hiding)
265 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
266 ;; frames in a session.
267 (defcustom gnus-article-x-face-command
268 (if (featurep 'xemacs)
269 (if (or (gnus-image-type-available-p 'xface)
270 (gnus-image-type-available-p 'pbm))
271 'gnus-display-x-face-in-from
272 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | ee -")
273 (if (gnus-image-type-available-p 'pbm)
274 'gnus-display-x-face-in-from
275 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
277 "*String or function to be executed to display an X-Face header.
278 If it is a string, the command will be executed in a sub-shell
279 asynchronously. The compressed face will be piped to this command."
280 :type `(choice string
281 (function-item gnus-display-x-face-in-from)
285 :group 'gnus-article-washing)
287 (defcustom gnus-article-x-face-too-ugly nil
288 "Regexp matching posters whose face shouldn't be shown automatically."
289 :type '(choice regexp (const nil))
290 :group 'gnus-article-washing)
292 (defcustom gnus-article-banner-alist nil
293 "Banner alist for stripping.
295 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
297 :type '(repeat (cons symbol regexp))
298 :group 'gnus-article-washing)
300 (gnus-define-group-parameter
303 "Alist of regexps (to match group names) and banner."
304 :variable-group gnus-article-washing
306 '(choice :tag "Banner"
308 (const :tag "Remove signature" signature)
309 (symbol :tag "Item in `gnus-article-banner-alist'" none)
311 (const :tag "None" nil))
313 "If non-nil, specify how to remove `banners' from articles.
315 Symbol `signature' means to remove signatures delimited by
316 `gnus-signature-separator'. Any other symbol is used to look up a
317 regular expression to match the banner in `gnus-article-banner-alist'.
318 A string is used as a regular expression to match the banner
321 (defcustom gnus-article-address-banner-alist nil
322 "Alist of mail addresses and banners.
323 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
324 to match a mail address in the From: header, BANNER is one of a symbol
325 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
326 If ADDRESS matches author's mail address, it will remove things like
327 advertisements. For example:
329 \((\"@yoo-hoo\\\\.co\\\\.jp\\\\'\" . \"\\n_+\\nDo You Yoo-hoo!\\\\?\\n.*\\n.*\\n\"))
333 (regexp :tag "Address")
334 (choice :tag "Banner" :value nil
335 (const :tag "Remove signature" signature)
336 (symbol :tag "Item in `gnus-article-banner-alist'" none)
338 (const :tag "None" nil))))
340 :group 'gnus-article-washing)
342 (defmacro gnus-emphasis-custom-with-format (&rest body)
344 \\(\\s-\\|^\\|\\=\\|[-\"]\\|\\s(\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\
345 \\(\\([-,.;:!?\"]\\|\\s)\\)+\\s-\\|[?!.]\\s-\\|\\s)\\|\\s-\\)"))
348 (defun gnus-emphasis-custom-value-to-external (value)
349 (gnus-emphasis-custom-with-format
350 (if (consp (car value))
351 (list (format format (car (car value)) (cdr (car value)))
353 (if (nth 1 value) 2 3)
357 (defun gnus-emphasis-custom-value-to-internal (value)
358 (gnus-emphasis-custom-with-format
359 (let ((regexp (concat "\\`"
360 (format (regexp-quote format)
361 "\\([^()]+\\)" "\\([^()]+\\)")
364 (if (string-match regexp (setq pattern (car value)))
365 (list (cons (match-string 1 pattern) (match-string 2 pattern))
370 (defcustom gnus-emphasis-alist
372 '(("\\*" "\\*" bold nil 2)
375 ("_/" "/_" underline-italic)
376 ("_\\*" "\\*_" underline-bold)
377 ("\\*/" "/\\*" bold-italic)
378 ("_\\*/" "/\\*_" underline-bold-italic))))
380 (gnus-emphasis-custom-with-format
381 (mapcar (lambda (spec)
382 (list (format format (car spec) (cadr spec))
385 (intern (format "gnus-emphasis-%s" (nth 2 spec)))))
387 '(;; I've never seen anyone use this strikethru convention whereas I've
388 ;; several times seen it triggered by normal text. --Stef
389 ;; Miles suggests that this form is sometimes used but for italics,
390 ;; so maybe we should map it to `italic'.
391 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
392 ;; 2 3 gnus-emphasis-strikethru)
393 ("\\(\\s-\\|^\\)\\(_\\(\\(\\w\\|_[^_]\\)+\\)_\\)\\(\\s-\\|[?!.,;]\\)"
394 2 3 gnus-emphasis-underline))))
395 "*Alist that says how to fontify certain phrases.
396 Each item looks like this:
398 (\"_\\\\(\\\\w+\\\\)_\" 0 1 'underline)
400 The first element is a regular expression to be matched. The second
401 is a number that says what regular expression grouping used to find
402 the entire emphasized word. The third is a number that says what
403 regexp grouping should be displayed and highlighted. The fourth
404 is the face used for highlighting."
408 :format "%[Customizing Style%]\n%v"
410 (group :tag "Default"
411 :value ("" 0 0 default)
414 (let ((value (widget-get
415 (cadr (widget-get (widget-get widget :parent)
418 (if (not (eq (nth 2 value) 'default))
422 (gnus-emphasis-custom-value-to-external value))))
423 (widget-group-value-create widget))
425 (integer :format "Match group: %v")
426 (integer :format "Emphasize group: %v")
429 :value (("_" . "_") nil default)
431 (regexp :format "Start regexp: %v")
432 (regexp :format "End regexp: %v"))
433 (boolean :format "Show start and end patterns: %[%v%]\n"
434 :on " On " :off " Off ")
436 :get (lambda (symbol)
437 (mapcar 'gnus-emphasis-custom-value-to-internal
438 (default-value symbol)))
439 :set (lambda (symbol value)
440 (set-default symbol (mapcar 'gnus-emphasis-custom-value-to-external
442 :group 'gnus-article-emphasis)
444 (defcustom gnus-emphasize-whitespace-regexp "^[ \t]+\\|[ \t]*\n"
445 "A regexp to describe whitespace which should not be emphasized.
446 Typical values are \"^[ \\t]+\\\\|[ \\t]*\\n\" and \"[ \\t]+\\\\|[ \\t]*\\n\".
447 The former avoids underlining of leading and trailing whitespace,
448 and the latter avoids underlining any whitespace at all."
450 :group 'gnus-article-emphasis
453 (defface gnus-emphasis-bold '((t (:bold t)))
454 "Face used for displaying strong emphasized text (*word*)."
455 :group 'gnus-article-emphasis)
457 (defface gnus-emphasis-italic '((t (:italic t)))
458 "Face used for displaying italic emphasized text (/word/)."
459 :group 'gnus-article-emphasis)
461 (defface gnus-emphasis-underline '((t (:underline t)))
462 "Face used for displaying underlined emphasized text (_word_)."
463 :group 'gnus-article-emphasis)
465 (defface gnus-emphasis-underline-bold '((t (:bold t :underline t)))
466 "Face used for displaying underlined bold emphasized text (_*word*_)."
467 :group 'gnus-article-emphasis)
469 (defface gnus-emphasis-underline-italic '((t (:italic t :underline t)))
470 "Face used for displaying underlined italic emphasized text (_/word/_)."
471 :group 'gnus-article-emphasis)
473 (defface gnus-emphasis-bold-italic '((t (:bold t :italic t)))
474 "Face used for displaying bold italic emphasized text (/*word*/)."
475 :group 'gnus-article-emphasis)
477 (defface gnus-emphasis-underline-bold-italic
478 '((t (:bold t :italic t :underline t)))
479 "Face used for displaying underlined bold italic emphasized text.
480 Example: (_/*word*/_)."
481 :group 'gnus-article-emphasis)
483 (defface gnus-emphasis-strikethru (if (featurep 'xemacs)
484 '((t (:strikethru t)))
485 '((t (:strike-through t))))
486 "Face used for displaying strike-through text (-word-)."
487 :group 'gnus-article-emphasis)
489 (defface gnus-emphasis-highlight-words
490 '((t (:background "black" :foreground "yellow")))
491 "Face used for displaying highlighted words."
492 :group 'gnus-article-emphasis)
494 (defcustom gnus-article-time-format "%a, %d %b %Y %T %Z"
495 "Format for display of Date headers in article bodies.
496 See `format-time-string' for the possible values.
498 The variable can also be function, which should return a complete Date
499 header. The function is called with one argument, the time, which can
500 be fed to `format-time-string'."
501 :type '(choice string function)
502 :link '(custom-manual "(gnus)Article Date")
503 :group 'gnus-article-washing)
505 (defcustom gnus-save-all-headers t
506 "*If non-nil, don't remove any headers before saving.
507 This will be overridden by the `:headers' property that the symbol of
508 the saver function, which is specified by `gnus-default-article-saver',
510 :group 'gnus-article-saving
513 (defcustom gnus-prompt-before-saving 'always
514 "*This variable says how much prompting is to be done when saving articles.
515 If it is nil, no prompting will be done, and the articles will be
516 saved to the default files. If this variable is `always', each and
517 every article that is saved will be preceded by a prompt, even when
518 saving large batches of articles. If this variable is neither nil not
519 `always', there the user will be prompted once for a file name for
520 each invocation of the saving commands."
521 :group 'gnus-article-saving
522 :type '(choice (item always)
523 (item :tag "never" nil)
524 (sexp :tag "once" :format "%t\n" :value t)))
526 (defcustom gnus-saved-headers gnus-visible-headers
527 "Headers to keep if `gnus-save-all-headers' is nil.
528 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
529 If that variable is nil, however, all headers that match this regexp
530 will be kept while the rest will be deleted before saving. This and
531 `gnus-save-all-headers' will be overridden by the `:headers' property
532 that the symbol of the saver function, which is specified by
533 `gnus-default-article-saver', might have."
534 :group 'gnus-article-saving
537 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
538 (defcustom gnus-default-article-saver 'gnus-summary-save-in-rmail
539 "A function to save articles in your favourite format.
540 The function will be called by way of the `gnus-summary-save-article'
541 command, and friends such as `gnus-summary-save-article-rmail'.
543 Gnus provides the following functions:
545 * gnus-summary-save-in-rmail (Rmail format)
546 * gnus-summary-save-in-mail (Unix mail format)
547 * gnus-summary-save-in-folder (MH folder)
548 * gnus-summary-save-in-file (article format)
549 * gnus-summary-save-body-in-file (article body)
550 * gnus-summary-save-in-vm (use VM's folder format)
551 * gnus-summary-write-to-file (article format -- overwrite)
552 * gnus-summary-write-body-to-file (article body -- overwrite)
553 * gnus-summary-save-in-pipe (article format)
555 The symbol of each function may have the following properties:
558 The value non-nil means save decoded articles. This is meaningful
559 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
560 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
561 `gnus-summary-save-in-pipe'.
564 The value specifies an alternative function which appends, not
565 overwrites, articles to a file. This implies that when saving many
566 articles at a time, `gnus-prompt-before-saving' is bound to t and all
567 articles are saved in a single file. This is meaningful only with
568 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
571 The value specifies the symbol of a variable of which the value
572 specifies headers to be saved. If it is omitted,
573 `gnus-save-all-headers' and `gnus-saved-headers' control what
574 headers should be saved."
575 :group 'gnus-article-saving
576 :type '(radio (function-item gnus-summary-save-in-rmail)
577 (function-item gnus-summary-save-in-mail)
578 (function-item gnus-summary-save-in-folder)
579 (function-item gnus-summary-save-in-file)
580 (function-item gnus-summary-save-body-in-file)
581 (function-item gnus-summary-save-in-vm)
582 (function-item gnus-summary-write-to-file)
583 (function-item gnus-summary-write-body-to-file)
584 (function-item gnus-summary-save-in-pipe)
587 (defcustom gnus-article-save-coding-system
588 (or (and (mm-coding-system-p 'utf-8) 'utf-8)
589 (and (mm-coding-system-p 'iso-2022-7bit) 'iso-2022-7bit)
590 (and (mm-coding-system-p 'emacs-mule) 'emacs-mule)
591 (and (mm-coding-system-p 'escape-quoted) 'escape-quoted))
592 "Coding system used to save decoded articles to a file.
594 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
595 which can safely encode any characters in text. This is used by the
598 * gnus-summary-save-article-file
599 * gnus-summary-save-article-body-file
600 * gnus-summary-write-article-file
601 * gnus-summary-write-article-body-file
603 and the functions to which you may set `gnus-default-article-saver':
605 * gnus-summary-save-in-file
606 * gnus-summary-save-body-in-file
607 * gnus-summary-write-to-file
608 * gnus-summary-write-body-to-file
610 Those commands and functions save just text displayed in the article
611 buffer to a file if the value of this variable is non-nil. Note that
612 buttonized MIME parts will be lost in a saved file in that case.
613 Otherwise, raw articles will be saved."
614 :group 'gnus-article-saving
616 :format "%{%t%}:\n %[Value Menu%] %v"
617 (const :tag "Save raw articles" nil)
620 (lambda (arg) (if (mm-coding-system-p (nth 3 arg)) arg))
621 '((const :tag "UTF-8" utf-8)
622 (const :tag "iso-2022-7bit" iso-2022-7bit)
623 (const :tag "Emacs internal" emacs-mule)
624 (const :tag "escape-quoted" escape-quoted))))
625 (symbol :tag "Coding system")))
627 (defcustom gnus-rmail-save-name 'gnus-plain-save-name
628 "A function generating a file name to save articles in Rmail format.
629 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
630 :group 'gnus-article-saving
633 (defcustom gnus-mail-save-name 'gnus-plain-save-name
634 "A function generating a file name to save articles in Unix mail format.
635 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
636 :group 'gnus-article-saving
639 (defcustom gnus-folder-save-name 'gnus-folder-save-name
640 "A function generating a file name to save articles in MH folder.
641 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
642 :group 'gnus-article-saving
645 (defcustom gnus-file-save-name 'gnus-numeric-save-name
646 "A function generating a file name to save articles in article format.
647 The function is called with NEWSGROUP, HEADERS, and optional
649 :group 'gnus-article-saving
652 (defcustom gnus-split-methods
653 '((gnus-article-archive-name)
654 (gnus-article-nndoc-name))
655 "*Variable used to suggest where articles are to be saved.
656 For instance, if you would like to save articles related to Gnus in
657 the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
658 you could set this variable to something like:
660 '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
661 (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
663 This variable is an alist where the key is the match and the
664 value is a list of possible files to save in if the match is
667 If the match is a string, it is used as a regexp match on the
668 article. If the match is a symbol, that symbol will be funcalled
669 from the buffer of the article to be saved with the newsgroup as the
670 parameter. If it is a list, it will be evaled in the same buffer.
672 If this form or function returns a string, this string will be used as a
673 possible file name; and if it returns a non-nil list, that list will be
674 used as possible file names."
675 :group 'gnus-article-saving
676 :type '(repeat (choice (list :value (fun) function)
677 (cons :value ("" "") regexp (repeat string))
680 (defcustom gnus-page-delimiter "^\^L"
681 "*Regexp describing what to use as article page delimiters.
682 The default value is \"^\^L\", which is a form linefeed at the
683 beginning of a line."
685 :group 'gnus-article-various)
687 (defcustom gnus-article-mode-line-format "Gnus: %g [%w] %S%m"
688 "*The format specification for the article mode line.
689 See `gnus-summary-mode-line-format' for a closer description.
691 The following additional specs are available:
693 %w The article washing status.
694 %m The number of MIME parts in the article."
696 :group 'gnus-article-various)
698 (defcustom gnus-article-mode-hook nil
699 "*A hook for Gnus article mode."
701 :group 'gnus-article-various)
703 (when (featurep 'xemacs)
704 ;; Extracted from gnus-xmas-define in order to preserve user settings
705 (when (fboundp 'turn-off-scroll-in-place)
706 (add-hook 'gnus-article-mode-hook 'turn-off-scroll-in-place))
707 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
708 (add-hook 'gnus-article-mode-hook 'gnus-xmas-article-menu-add))
710 (defcustom gnus-article-menu-hook nil
711 "*Hook run after the creation of the article mode menu."
713 :group 'gnus-article-various)
715 (defcustom gnus-article-prepare-hook nil
716 "*A hook called after an article has been prepared in the article buffer."
718 :group 'gnus-article-various)
720 (defcustom gnus-copy-article-ignored-headers nil
721 "List of headers to be removed when copying an article.
722 Each element is a regular expression."
723 :version "23.1" ;; No Gnus
724 :type '(repeat regexp)
725 :group 'gnus-article-various)
727 (make-obsolete-variable 'gnus-article-hide-pgp-hook nil
728 "Gnus 5.10 (Emacs 22.1)")
731 '((t (:weight bold)))
732 "Face used for highlighting a button in the article buffer."
733 :group 'gnus-article-buttons)
735 (defcustom gnus-article-button-face 'gnus-button
736 "Face used for highlighting buttons in the article buffer.
738 An article button is a piece of text that you can activate by pressing
739 `RET' or `mouse-2' above it."
741 :group 'gnus-article-buttons)
743 (defcustom gnus-article-mouse-face 'highlight
744 "Face used for mouse highlighting in the article buffer.
746 Article buttons will be displayed in this face when the cursor is
749 :group 'gnus-article-buttons)
751 (defcustom gnus-signature-face 'gnus-signature
752 "Face used for highlighting a signature in the article buffer.
753 Obsolete; use the face `gnus-signature' for customizations instead."
755 :group 'gnus-article-highlight
756 :group 'gnus-article-signature)
758 (defface gnus-signature
761 "Face used for highlighting a signature in the article buffer."
762 :group 'gnus-article-highlight
763 :group 'gnus-article-signature)
764 ;; backward-compatibility alias
765 (put 'gnus-signature-face 'face-alias 'gnus-signature)
766 (put 'gnus-signature-face 'obsolete-face "22.1")
768 (defface gnus-header-from
771 (:foreground "PaleGreen1"))
774 (:foreground "red3"))
777 "Face used for displaying from headers."
778 :group 'gnus-article-headers
779 :group 'gnus-article-highlight)
780 ;; backward-compatibility alias
781 (put 'gnus-header-from-face 'face-alias 'gnus-header-from)
782 (put 'gnus-header-from-face 'obsolete-face "22.1")
784 (defface gnus-header-subject
787 (:foreground "SeaGreen1"))
790 (:foreground "red4"))
792 (:bold t :italic t)))
793 "Face used for displaying subject headers."
794 :group 'gnus-article-headers
795 :group 'gnus-article-highlight)
796 ;; backward-compatibility alias
797 (put 'gnus-header-subject-face 'face-alias 'gnus-header-subject)
798 (put 'gnus-header-subject-face 'obsolete-face "22.1")
800 (defface gnus-header-newsgroups
803 (:foreground "yellow" :italic t))
806 (:foreground "MidnightBlue" :italic t))
809 "Face used for displaying newsgroups headers.
810 In the default setup this face is only used for crossposted
812 :group 'gnus-article-headers
813 :group 'gnus-article-highlight)
814 ;; backward-compatibility alias
815 (put 'gnus-header-newsgroups-face 'face-alias 'gnus-header-newsgroups)
816 (put 'gnus-header-newsgroups-face 'obsolete-face "22.1")
818 (defface gnus-header-name
821 (:foreground "SpringGreen2"))
824 (:foreground "maroon"))
827 "Face used for displaying header names."
828 :group 'gnus-article-headers
829 :group 'gnus-article-highlight)
830 ;; backward-compatibility alias
831 (put 'gnus-header-name-face 'face-alias 'gnus-header-name)
832 (put 'gnus-header-name-face 'obsolete-face "22.1")
834 (defface gnus-header-content
837 (:foreground "SpringGreen1" :italic t))
840 (:foreground "indianred4" :italic t))
842 (:italic t))) "Face used for displaying header content."
843 :group 'gnus-article-headers
844 :group 'gnus-article-highlight)
845 ;; backward-compatibility alias
846 (put 'gnus-header-content-face 'face-alias 'gnus-header-content)
847 (put 'gnus-header-content-face 'obsolete-face "22.1")
849 (defcustom gnus-header-face-alist
850 '(("From" nil gnus-header-from)
851 ("Subject" nil gnus-header-subject)
852 ("Newsgroups:.*," nil gnus-header-newsgroups)
853 ("" gnus-header-name gnus-header-content))
854 "*Controls highlighting of article headers.
856 An alist of the form (HEADER NAME CONTENT).
858 HEADER is a regular expression which should match the name of a
859 header and NAME and CONTENT are either face names or nil.
861 The name of each header field will be displayed using the face
862 specified by the first element in the list where HEADER matches
863 the header name and NAME is non-nil. Similarly, the content will
864 be displayed by the first non-nil matching CONTENT face."
865 :group 'gnus-article-headers
866 :group 'gnus-article-highlight
867 :type '(repeat (list (regexp :tag "Header")
869 (item :tag "skip" nil)
870 (face :value default))
871 (choice :tag "Content"
872 (item :tag "skip" nil)
873 (face :value default)))))
875 (defcustom gnus-face-properties-alist (if (featurep 'xemacs)
876 '((xface . (:face gnus-x-face)))
877 '((pbm . (:face gnus-x-face))
879 "Alist of image types and properties applied to Face and X-Face images.
882 ;; Specify the altitude of Face images in the From header.
883 \(setq gnus-face-properties-alist
884 '((pbm . (:face gnus-x-face :ascent 80))
885 (png . (:ascent 80))))
887 ;; Show Face images as pressed buttons.
888 \(setq gnus-face-properties-alist
889 '((pbm . (:face gnus-x-face :relief -2))
890 (png . (:relief -2))))
892 See the manual for the valid properties for various image types.
893 Currently, `pbm' is used for X-Face images and `png' is used for Face
894 images in Emacs. Only the `:face' property is effective on the `xface'
895 image type in XEmacs if it is built with the libcompface library."
896 :version "23.1" ;; No Gnus
897 :group 'gnus-article-headers
898 :type '(repeat (cons :format "%v" (symbol :tag "Image type") plist)))
900 (defcustom gnus-article-decode-hook
901 '(article-decode-charset article-decode-encoded-words
902 article-decode-group-name article-decode-idna-rhs)
903 "*Hook run to decode charsets in articles."
904 :group 'gnus-article-headers
907 (defcustom gnus-display-mime-function 'gnus-display-mime
908 "Function to display MIME articles."
909 :group 'gnus-article-mime
912 (defvar gnus-decode-header-function 'mail-decode-encoded-word-region
913 "Function used to decode headers.")
915 (defvar gnus-decode-address-function 'mail-decode-encoded-address-region
916 "Function used to decode addresses.")
918 (defvar gnus-article-dumbquotes-map
938 "Table for MS-to-Latin1 translation.")
940 (defcustom gnus-ignored-mime-types nil
941 "List of MIME types that should be ignored by Gnus."
943 :group 'gnus-article-mime
944 :type '(repeat regexp))
946 (defcustom gnus-unbuttonized-mime-types '(".*/.*")
947 "List of MIME types that should not be given buttons when rendered inline.
948 See also `gnus-buttonized-mime-types' which may override this variable.
949 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
951 :group 'gnus-article-mime
952 :type '(repeat regexp))
954 (defcustom gnus-buttonized-mime-types nil
955 "List of MIME types that should be given buttons when rendered inline.
956 If set, this variable overrides `gnus-unbuttonized-mime-types'.
957 To see e.g. security buttons you could set this to
958 `(\"multipart/signed\")'. You could also add \"multipart/alternative\" to
959 this list to display radio buttons that allow you to choose one of two
960 media types those mails include. See also `mm-discouraged-alternatives'.
961 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
963 :group 'gnus-article-mime
964 :type '(repeat regexp))
966 (defcustom gnus-inhibit-mime-unbuttonizing nil
967 "If non-nil, all MIME parts get buttons.
968 When nil (the default value), then some MIME parts do not get buttons,
969 as described by the variables `gnus-buttonized-mime-types' and
970 `gnus-unbuttonized-mime-types'."
972 :group 'gnus-article-mime
975 (defcustom gnus-body-boundary-delimiter "_"
976 "String used to delimit header and body.
977 This variable is used by `gnus-article-treat-body-boundary' which can
978 be controlled by `gnus-treat-body-boundary'."
980 :group 'gnus-article-various
981 :type '(choice (item :tag "None" :value nil)
984 (defcustom gnus-picon-databases '("/usr/lib/picon" "/usr/local/faces"
986 "Defines the location of the faces database.
987 For information on obtaining this database of pretty pictures, please
988 see http://www.cs.indiana.edu/picons/ftp/index.html"
990 :type '(repeat directory)
991 :link '(url-link :tag "download"
992 "http://www.cs.indiana.edu/picons/ftp/index.html")
993 :link '(custom-manual "(gnus)Picons")
996 (defun gnus-picons-installed-p ()
997 "Say whether picons are installed on your machine."
998 (let ((installed nil))
999 (dolist (database gnus-picon-databases)
1000 (when (file-exists-p database)
1001 (setq installed t)))
1004 (defcustom gnus-article-mime-part-function nil
1005 "Function called with a MIME handle as the argument.
1006 This is meant for people who want to do something automatic based
1007 on parts -- for instance, adding Vcard info to a database."
1008 :group 'gnus-article-mime
1009 :type '(choice (const nil)
1012 (defcustom gnus-mime-multipart-functions nil
1013 "An alist of MIME types to functions to display them."
1015 :group 'gnus-article-mime
1016 :type '(repeat (cons :format "%v" (string :tag "MIME type") function)))
1018 (defcustom gnus-article-date-lapsed-new-header nil
1019 "Whether the X-Sent and Date headers can coexist.
1020 When using `gnus-treat-date-lapsed', the \"X-Sent:\" header will
1021 either replace the old \"Date:\" header (if this variable is nil), or
1022 be added below it (otherwise)."
1024 :group 'gnus-article-headers
1027 (defcustom gnus-article-mime-match-handle-function 'undisplayed-alternative
1028 "Function called with a MIME handle as the argument.
1029 This is meant for people who want to view first matched part.
1030 For `undisplayed-alternative' (default), the first undisplayed
1031 part or alternative part is used. For `undisplayed', the first
1032 undisplayed part is used. For a function, the first part which
1033 the function return t is used. For nil, the first part is
1036 :group 'gnus-article-mime
1038 (item :tag "first" :value nil)
1039 (item :tag "undisplayed" :value undisplayed)
1040 (item :tag "undisplayed or alternative"
1041 :value undisplayed-alternative)
1044 (defcustom gnus-mime-action-alist
1045 '(("save to file" . gnus-mime-save-part)
1046 ("save and strip" . gnus-mime-save-part-and-strip)
1047 ("replace with file" . gnus-mime-replace-part)
1048 ("delete part" . gnus-mime-delete-part)
1049 ("display as text" . gnus-mime-inline-part)
1050 ("view the part" . gnus-mime-view-part)
1051 ("pipe to command" . gnus-mime-pipe-part)
1052 ("toggle display" . gnus-article-press-button)
1053 ("toggle display" . gnus-article-view-part-as-charset)
1054 ("view as type" . gnus-mime-view-part-as-type)
1055 ("view internally" . gnus-mime-view-part-internally)
1056 ("view externally" . gnus-mime-view-part-externally))
1057 "An alist of actions that run on the MIME attachment."
1058 :group 'gnus-article-mime
1059 :type '(repeat (cons (string :tag "name")
1062 (defcustom gnus-auto-select-part 1
1063 "Advance to next MIME part when deleting or stripping parts.
1065 When 0, point will be placed on the same part as before. When
1066 positive (negative), move point forward (backwards) this many
1067 parts. When nil, redisplay article."
1068 :version "23.1" ;; No Gnus
1069 :group 'gnus-article-mime
1070 :type '(choice (const nil :tag "Redisplay article.")
1071 (const 1 :tag "Next part.")
1072 (const 0 :tag "Current part.")
1076 ;;; The treatment variables
1079 (defvar gnus-part-display-hook nil
1080 "Hook called on parts that are to receive treatment.")
1082 (defvar gnus-article-treat-custom
1083 '(choice (const :tag "Off" nil)
1085 (const :tag "Header" head)
1086 (const :tag "First" first)
1087 (const :tag "Last" last)
1088 (integer :tag "Less")
1089 (repeat :tag "Groups" regexp)
1090 (sexp :tag "Predicate")))
1092 (defvar gnus-article-treat-head-custom
1093 '(choice (const :tag "Off" nil)
1094 (const :tag "Header" head)))
1096 (defvar gnus-article-treat-types '("text/plain" "text/x-verbatim"
1100 (defvar gnus-inhibit-treatment nil
1101 "Whether to inhibit treatment.")
1103 (defcustom gnus-treat-highlight-signature '(or t (typep "text/x-vcard"))
1104 "Highlight the signature.
1105 Valid values are nil, t, `head', `first', `last', an integer or a
1106 predicate. See Info node `(gnus)Customizing Articles'."
1107 :group 'gnus-article-treat
1108 :link '(custom-manual "(gnus)Customizing Articles")
1109 :type gnus-article-treat-custom)
1110 (put 'gnus-treat-highlight-signature 'highlight t)
1112 (defcustom gnus-treat-buttonize 100000
1114 Valid values are nil, t, `head', `first', `last', an integer or a
1115 predicate. See Info node `(gnus)Customizing Articles'."
1116 :group 'gnus-article-treat
1117 :link '(custom-manual "(gnus)Customizing Articles")
1118 :type gnus-article-treat-custom)
1119 (put 'gnus-treat-buttonize 'highlight t)
1121 (defcustom gnus-treat-buttonize-head 'head
1122 "Add buttons to the head.
1123 Valid values are nil, t, `head', `first', `last', an integer or a
1124 predicate. See Info node `(gnus)Customizing Articles'."
1125 :group 'gnus-article-treat
1126 :link '(custom-manual "(gnus)Customizing Articles")
1127 :type gnus-article-treat-head-custom)
1128 (put 'gnus-treat-buttonize-head 'highlight t)
1130 (defcustom gnus-treat-emphasize 50000
1132 Valid values are nil, t, `head', `first', `last', an integer or a
1133 predicate. See Info node `(gnus)Customizing Articles'."
1134 :group 'gnus-article-treat
1135 :link '(custom-manual "(gnus)Customizing Articles")
1136 :type gnus-article-treat-custom)
1137 (put 'gnus-treat-emphasize 'highlight t)
1139 (defcustom gnus-treat-strip-cr nil
1140 "Remove carriage returns.
1141 Valid values are nil, t, `head', `first', `last', an integer or a
1142 predicate. See Info node `(gnus)Customizing Articles'."
1144 :group 'gnus-article-treat
1145 :link '(custom-manual "(gnus)Customizing Articles")
1146 :type gnus-article-treat-custom)
1148 (defcustom gnus-treat-unsplit-urls nil
1149 "Remove newlines from within URLs.
1150 Valid values are nil, t, `head', `first', `last', an integer or a
1151 predicate. See Info node `(gnus)Customizing Articles'."
1153 :group 'gnus-article-treat
1154 :link '(custom-manual "(gnus)Customizing Articles")
1155 :type gnus-article-treat-custom)
1157 (defcustom gnus-treat-leading-whitespace nil
1158 "Remove leading whitespace in headers.
1159 Valid values are nil, t, `head', `first', `last', an integer or a
1160 predicate. See Info node `(gnus)Customizing Articles'."
1162 :group 'gnus-article-treat
1163 :link '(custom-manual "(gnus)Customizing Articles")
1164 :type gnus-article-treat-custom)
1166 (defcustom gnus-treat-hide-headers 'head
1168 Valid values are nil, t, `head', `first', `last', an integer or a
1169 predicate. See Info node `(gnus)Customizing Articles'."
1170 :group 'gnus-article-treat
1171 :link '(custom-manual "(gnus)Customizing Articles")
1172 :type gnus-article-treat-head-custom)
1174 (defcustom gnus-treat-hide-boring-headers nil
1175 "Hide boring headers.
1176 Valid values are nil, t, `head', `first', `last', an integer or a
1177 predicate. See Info node `(gnus)Customizing Articles'."
1178 :group 'gnus-article-treat
1179 :link '(custom-manual "(gnus)Customizing Articles")
1180 :type gnus-article-treat-head-custom)
1182 (defcustom gnus-treat-hide-signature nil
1183 "Hide the signature.
1184 Valid values are nil, t, `head', `first', `last', an integer or a
1185 predicate. See Info node `(gnus)Customizing Articles'."
1186 :group 'gnus-article-treat
1187 :link '(custom-manual "(gnus)Customizing Articles")
1188 :type gnus-article-treat-custom)
1190 (defcustom gnus-treat-fill-article nil
1192 Valid values are nil, t, `head', `first', `last', an integer or a
1193 predicate. See Info node `(gnus)Customizing Articles'."
1194 :group 'gnus-article-treat
1195 :link '(custom-manual "(gnus)Customizing Articles")
1196 :type gnus-article-treat-custom)
1198 (defcustom gnus-treat-hide-citation nil
1200 Valid values are nil, t, `head', `first', `last', an integer or a
1201 predicate. See Info node `(gnus)Customizing Articles'."
1202 :group 'gnus-article-treat
1203 :link '(custom-manual "(gnus)Customizing Articles")
1204 :type gnus-article-treat-custom)
1206 (defcustom gnus-treat-hide-citation-maybe nil
1208 Valid values are nil, t, `head', `first', `last', an integer or a
1209 predicate. See Info node `(gnus)Customizing Articles'."
1210 :group 'gnus-article-treat
1211 :link '(custom-manual "(gnus)Customizing Articles")
1212 :type gnus-article-treat-custom)
1214 (defcustom gnus-treat-strip-list-identifiers 'head
1215 "Strip list identifiers from `gnus-list-identifiers`.
1216 Valid values are nil, t, `head', `first', `last', an integer or a
1217 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 (make-obsolete-variable 'gnus-treat-strip-pgp nil
1224 "Gnus 5.10 (Emacs 22.1)")
1226 (defcustom gnus-treat-strip-pem nil
1227 "Strip PEM signatures.
1228 Valid values are nil, t, `head', `first', `last', an integer or a
1229 predicate. See Info node `(gnus)Customizing Articles'."
1230 :group 'gnus-article-treat
1231 :link '(custom-manual "(gnus)Customizing Articles")
1232 :type gnus-article-treat-custom)
1234 (defcustom gnus-treat-strip-banner t
1235 "Strip banners from articles.
1236 The banner to be stripped is specified in the `banner' group parameter.
1237 Valid values are nil, t, `head', `first', `last', an integer or a
1238 predicate. See Info node `(gnus)Customizing Articles'."
1239 :group 'gnus-article-treat
1240 :link '(custom-manual "(gnus)Customizing Articles")
1241 :type gnus-article-treat-custom)
1243 (defcustom gnus-treat-highlight-headers 'head
1244 "Highlight the headers.
1245 Valid values are nil, t, `head', `first', `last', an integer or a
1246 predicate. See Info node `(gnus)Customizing Articles'."
1247 :group 'gnus-article-treat
1248 :link '(custom-manual "(gnus)Customizing Articles")
1249 :type gnus-article-treat-head-custom)
1250 (put 'gnus-treat-highlight-headers 'highlight t)
1252 (defcustom gnus-treat-highlight-citation t
1253 "Highlight cited text.
1254 Valid values are nil, t, `head', `first', `last', an integer or a
1255 predicate. See Info node `(gnus)Customizing Articles'."
1256 :group 'gnus-article-treat
1257 :link '(custom-manual "(gnus)Customizing Articles")
1258 :type gnus-article-treat-custom)
1259 (put 'gnus-treat-highlight-citation 'highlight t)
1261 (defcustom gnus-treat-date-ut nil
1262 "Display the Date in UT (GMT).
1263 Valid values are nil, t, `head', `first', `last', an integer or a
1264 predicate. See Info node `(gnus)Customizing Articles'."
1265 :group 'gnus-article-treat
1266 :link '(custom-manual "(gnus)Customizing Articles")
1267 :type gnus-article-treat-head-custom)
1269 (defcustom gnus-treat-date-local nil
1270 "Display the Date in the local timezone.
1271 Valid values are nil, t, `head', `first', `last', an integer or a
1272 predicate. See Info node `(gnus)Customizing Articles'."
1273 :group 'gnus-article-treat
1274 :link '(custom-manual "(gnus)Customizing Articles")
1275 :type gnus-article-treat-head-custom)
1277 (defcustom gnus-treat-date-english nil
1278 "Display the Date in a format that can be read aloud in English.
1279 Valid values are nil, t, `head', `first', `last', an integer or a
1280 predicate. See Info node `(gnus)Customizing Articles'."
1282 :group 'gnus-article-treat
1283 :link '(custom-manual "(gnus)Customizing Articles")
1284 :type gnus-article-treat-head-custom)
1286 (defcustom gnus-treat-date-lapsed nil
1287 "Display the Date header in a way that says how much time has elapsed.
1288 Valid values are nil, t, `head', `first', `last', an integer or a
1289 predicate. See Info node `(gnus)Customizing Articles'."
1290 :group 'gnus-article-treat
1291 :link '(custom-manual "(gnus)Customizing Articles")
1292 :type gnus-article-treat-head-custom)
1294 (defcustom gnus-treat-date-original nil
1295 "Display the date in the original timezone.
1296 Valid values are nil, t, `head', `first', `last', an integer or a
1297 predicate. See Info node `(gnus)Customizing Articles'."
1298 :group 'gnus-article-treat
1299 :link '(custom-manual "(gnus)Customizing Articles")
1300 :type gnus-article-treat-head-custom)
1302 (defcustom gnus-treat-date-iso8601 nil
1303 "Display the date in the ISO8601 format.
1304 Valid values are nil, t, `head', `first', `last', an integer or a
1305 predicate. See Info node `(gnus)Customizing Articles'."
1307 :group 'gnus-article-treat
1308 :link '(custom-manual "(gnus)Customizing Articles")
1309 :type gnus-article-treat-head-custom)
1311 (defcustom gnus-treat-date-user-defined nil
1312 "Display the date in a user-defined format.
1313 The format is defined by the `gnus-article-time-format' variable.
1314 Valid values are nil, t, `head', `first', `last', an integer or a
1315 predicate. See Info node `(gnus)Customizing Articles'."
1316 :group 'gnus-article-treat
1317 :link '(custom-manual "(gnus)Customizing Articles")
1318 :type gnus-article-treat-head-custom)
1320 (defcustom gnus-treat-strip-headers-in-body t
1321 "Strip the X-No-Archive header line from the beginning of the body.
1322 Valid values are nil, t, `head', `first', `last', an integer or a
1323 predicate. See Info node `(gnus)Customizing Articles'."
1325 :group 'gnus-article-treat
1326 :link '(custom-manual "(gnus)Customizing Articles")
1327 :type gnus-article-treat-custom)
1329 (defcustom gnus-treat-strip-trailing-blank-lines nil
1330 "Strip trailing blank lines.
1331 Valid values are nil, t, `head', `first', `last', an integer or a
1332 predicate. See Info node `(gnus)Customizing Articles'.
1334 When set to t, it also strips trailing blanks in all MIME parts.
1335 Consider to use `last' instead."
1336 :group 'gnus-article-treat
1337 :link '(custom-manual "(gnus)Customizing Articles")
1338 :type gnus-article-treat-custom)
1340 (defcustom gnus-treat-strip-leading-blank-lines nil
1341 "Strip leading blank lines.
1342 Valid values are nil, t, `head', `first', `last', an integer or a
1343 predicate. See Info node `(gnus)Customizing Articles'.
1345 When set to t, it also strips trailing blanks in all MIME parts."
1346 :group 'gnus-article-treat
1347 :link '(custom-manual "(gnus)Customizing Articles")
1348 :type gnus-article-treat-custom)
1350 (defcustom gnus-treat-strip-multiple-blank-lines nil
1351 "Strip multiple blank lines.
1352 Valid values are nil, t, `head', `first', `last', an integer or a
1353 predicate. See Info node `(gnus)Customizing Articles'."
1354 :group 'gnus-article-treat
1355 :link '(custom-manual "(gnus)Customizing Articles")
1356 :type gnus-article-treat-custom)
1358 (defcustom gnus-treat-unfold-headers 'head
1359 "Unfold folded header lines.
1360 Valid values are nil, t, `head', `first', `last', an integer or a
1361 predicate. See Info node `(gnus)Customizing Articles'."
1363 :group 'gnus-article-treat
1364 :link '(custom-manual "(gnus)Customizing Articles")
1365 :type gnus-article-treat-custom)
1367 (defcustom gnus-article-unfold-long-headers nil
1368 "If non-nil, allow unfolding headers even if the header is long.
1369 If it is a regexp, only long headers matching this regexp are unfolded.
1370 If it is t, all long headers are unfolded.
1372 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1373 :version "23.1" ;; No Gnus
1374 :group 'gnus-article-treat
1375 :type '(choice (const nil)
1376 (const :tag "all" t)
1379 (defcustom gnus-treat-fold-headers nil
1381 Valid values are nil, t, `head', `first', `last', an integer or a
1382 predicate. See Info node `(gnus)Customizing Articles'."
1384 :group 'gnus-article-treat
1385 :link '(custom-manual "(gnus)Customizing Articles")
1386 :type gnus-article-treat-custom)
1388 (defcustom gnus-treat-fold-newsgroups 'head
1389 "Fold the Newsgroups and Followup-To headers.
1390 Valid values are nil, t, `head', `first', `last', an integer or a
1391 predicate. See Info node `(gnus)Customizing Articles'."
1393 :group 'gnus-article-treat
1394 :link '(custom-manual "(gnus)Customizing Articles")
1395 :type gnus-article-treat-custom)
1397 (defcustom gnus-treat-overstrike t
1398 "Treat overstrike highlighting.
1399 Valid values are nil, t, `head', `first', `last', an integer or a
1400 predicate. See Info node `(gnus)Customizing Articles'."
1401 :group 'gnus-article-treat
1402 :link '(custom-manual "(gnus)Customizing Articles")
1403 :type gnus-article-treat-custom)
1404 (put 'gnus-treat-overstrike 'highlight t)
1406 (defcustom gnus-treat-ansi-sequences (if (locate-library "ansi-color") t)
1407 "Treat ANSI SGR control sequences.
1408 Valid values are nil, t, `head', `first', `last', an integer or a
1409 predicate. See Info node `(gnus)Customizing Articles'."
1410 :group 'gnus-article-treat
1411 :link '(custom-manual "(gnus)Customizing Articles")
1412 :type gnus-article-treat-custom)
1414 (make-obsolete-variable 'gnus-treat-display-xface
1415 'gnus-treat-display-x-face "Emacs 22.1")
1417 (defcustom gnus-treat-display-x-face
1418 (and (not noninteractive)
1419 (gnus-image-type-available-p 'xbm)
1420 (if (featurep 'xemacs)
1423 (and (string-match "^0x" (shell-command-to-string "uncompface"))
1424 (executable-find "icontopbm"))
1425 ;; shell-command-to-string may signal an error, e.g. if
1426 ;; shell-file-name is not found.
1429 "Display X-Face headers.
1430 Valid values are nil and `head'.
1431 See Info node `(gnus)Customizing Articles' and Info node
1432 `(gnus)X-Face' for details."
1433 :group 'gnus-article-treat
1435 :link '(custom-manual "(gnus)Customizing Articles")
1436 :link '(custom-manual "(gnus)X-Face")
1437 :type gnus-article-treat-head-custom
1438 :set (lambda (symbol value)
1441 (cond ((or (boundp symbol) (get symbol 'saved-value))
1443 ((boundp 'gnus-treat-display-xface)
1445 ** gnus-treat-display-xface is an obsolete variable;\
1446 use gnus-treat-display-x-face instead")
1447 (default-value 'gnus-treat-display-xface))
1448 ((get 'gnus-treat-display-xface 'saved-value)
1450 ** gnus-treat-display-xface is an obsolete variable;\
1451 use gnus-treat-display-x-face instead")
1452 (eval (car (get 'gnus-treat-display-xface 'saved-value))))
1455 (put 'gnus-treat-display-x-face 'highlight t)
1457 (defcustom gnus-treat-display-face
1458 (and (not noninteractive)
1459 (gnus-image-type-available-p 'png)
1461 "Display Face headers.
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)Face' for details."
1465 :group 'gnus-article-treat
1467 :link '(custom-manual "(gnus)Customizing Articles")
1468 :link '(custom-manual "(gnus)X-Face")
1469 :type gnus-article-treat-head-custom)
1470 (put 'gnus-treat-display-face 'highlight t)
1472 (defcustom gnus-treat-display-smileys (gnus-image-type-available-p 'xpm)
1474 Valid values are nil, t, `head', `first', `last', an integer or a
1475 predicate. See Info node `(gnus)Customizing Articles' and Info
1476 node `(gnus)Smileys' for details."
1477 :group 'gnus-article-treat
1479 :link '(custom-manual "(gnus)Customizing Articles")
1480 :link '(custom-manual "(gnus)Smileys")
1481 :type gnus-article-treat-custom)
1482 (put 'gnus-treat-display-smileys 'highlight t)
1484 (defcustom gnus-treat-from-picon
1485 (if (and (gnus-image-type-available-p 'xpm)
1486 (gnus-picons-installed-p))
1488 "Display picons in the From header.
1489 Valid values are nil, t, `head', `first', `last', an integer or a
1490 predicate. See Info node `(gnus)Customizing Articles' and Info
1491 node `(gnus)Picons' for details."
1493 :group 'gnus-article-treat
1495 :link '(custom-manual "(gnus)Customizing Articles")
1496 :link '(custom-manual "(gnus)Picons")
1497 :type gnus-article-treat-head-custom)
1498 (put 'gnus-treat-from-picon 'highlight t)
1500 (defcustom gnus-treat-mail-picon
1501 (if (and (gnus-image-type-available-p 'xpm)
1502 (gnus-picons-installed-p))
1504 "Display picons in To and Cc headers.
1505 Valid values are nil, t, `head', `first', `last', an integer or a
1506 predicate. See Info node `(gnus)Customizing Articles' and Info
1507 node `(gnus)Picons' for details."
1509 :group 'gnus-article-treat
1511 :link '(custom-manual "(gnus)Customizing Articles")
1512 :link '(custom-manual "(gnus)Picons")
1513 :type gnus-article-treat-head-custom)
1514 (put 'gnus-treat-mail-picon 'highlight t)
1516 (defcustom gnus-treat-newsgroups-picon
1517 (if (and (gnus-image-type-available-p 'xpm)
1518 (gnus-picons-installed-p))
1520 "Display picons in the Newsgroups and Followup-To headers.
1521 Valid values are nil, t, `head', `first', `last', an integer or a
1522 predicate. See Info node `(gnus)Customizing Articles' and Info
1523 node `(gnus)Picons' for details."
1525 :group 'gnus-article-treat
1527 :link '(custom-manual "(gnus)Customizing Articles")
1528 :link '(custom-manual "(gnus)Picons")
1529 :type gnus-article-treat-head-custom)
1530 (put 'gnus-treat-newsgroups-picon 'highlight t)
1532 (defcustom gnus-treat-from-gravatar nil
1533 "Display gravatars in the From header.
1534 Valid values are nil, t, `head', `first', `last', an integer or a
1535 predicate. See Info node `(gnus)Customizing Articles' and Info
1536 node `(gnus)Gravatars' for details."
1538 :group 'gnus-article-treat
1539 :group 'gnus-gravatar
1540 :link '(custom-manual "(gnus)Customizing Articles")
1541 :link '(custom-manual "(gnus)Gravatars")
1542 :type gnus-article-treat-head-custom)
1543 (put 'gnus-treat-from-gravatar 'highlight t)
1545 (defcustom gnus-treat-mail-gravatar nil
1546 "Display gravatars in To and Cc headers.
1547 Valid values are nil, t, `head', `first', `last', an integer or a
1548 predicate. See Info node `(gnus)Customizing Articles' and Info
1549 node `(gnus)Gravatars' for details."
1551 :group 'gnus-article-treat
1552 :group 'gnus-gravatar
1553 :link '(custom-manual "(gnus)Customizing Articles")
1554 :link '(custom-manual "(gnus)Gravatars")
1555 :type gnus-article-treat-head-custom)
1556 (put 'gnus-treat-mail-gravatar 'highlight t)
1558 (defcustom gnus-treat-body-boundary
1559 (if (or gnus-treat-newsgroups-picon
1560 gnus-treat-mail-picon
1561 gnus-treat-from-picon
1562 gnus-treat-from-gravatar
1563 gnus-treat-mail-gravatar)
1564 ;; If there's much decoration, the user might prefer a boundery.
1567 "Draw a boundary at the end of the headers.
1568 Valid values are nil and `head'.
1569 See Info node `(gnus)Customizing Articles' for details."
1571 :group 'gnus-article-treat
1572 :link '(custom-manual "(gnus)Customizing Articles")
1573 :type gnus-article-treat-head-custom)
1575 (defcustom gnus-treat-capitalize-sentences nil
1576 "Capitalize sentence-starting words.
1577 Valid values are nil, t, `head', `first', `last', an integer or a
1578 predicate. See Info node `(gnus)Customizing Articles'."
1580 :group 'gnus-article-treat
1581 :link '(custom-manual "(gnus)Customizing Articles")
1582 :type gnus-article-treat-custom)
1584 (defcustom gnus-treat-wash-html nil
1586 Valid values are nil, t, `head', `first', `last', an integer or a
1587 predicate. See Info node `(gnus)Customizing Articles'."
1589 :group 'gnus-article-treat
1590 :link '(custom-manual "(gnus)Customizing Articles")
1591 :type gnus-article-treat-custom)
1593 (defcustom gnus-treat-fill-long-lines '(typep "text/plain")
1595 Valid values are nil, t, `head', `first', `last', an integer or a
1596 predicate. See Info node `(gnus)Customizing Articles'."
1597 :group 'gnus-article-treat
1598 :link '(custom-manual "(gnus)Customizing Articles")
1599 :type gnus-article-treat-custom)
1601 (defcustom gnus-treat-x-pgp-sig nil
1603 To automatically treat X-PGP-Sig, set it to head.
1604 Valid values are nil, t, `head', `first', `last', an integer or a
1605 predicate. See Info node `(gnus)Customizing Articles'."
1607 :group 'gnus-article-treat
1608 :group 'mime-security
1609 :link '(custom-manual "(gnus)Customizing Articles")
1610 :type gnus-article-treat-custom)
1612 (defvar gnus-article-encrypt-protocol-alist
1613 '(("PGP" . mml2015-self-encrypt)))
1615 ;; Set to nil if more than one protocol added to
1616 ;; gnus-article-encrypt-protocol-alist.
1617 (defcustom gnus-article-encrypt-protocol "PGP"
1618 "The protocol used for encrypt articles.
1619 It is a string, such as \"PGP\". If nil, ask user."
1622 :group 'mime-security)
1624 (defcustom gnus-use-idna (and (condition-case nil (require 'idna) (file-error))
1625 (mm-coding-system-p 'utf-8)
1626 (executable-find idna-program))
1627 "Whether IDNA decoding of headers is used when viewing messages.
1628 This requires GNU Libidn, and by default only enabled if it is found."
1630 :group 'gnus-article-headers
1633 (defcustom gnus-article-over-scroll nil
1634 "If non-nil, allow scrolling the article buffer even when there no more text."
1636 :group 'gnus-article
1639 (defcustom gnus-inhibit-images nil
1640 "Non-nil means inhibit displaying of images inline in the article body."
1642 :group 'gnus-article
1645 (defcustom gnus-blocked-images 'gnus-block-private-groups
1646 "Images that have URLs matching this regexp will be blocked.
1647 This can also be a function to be evaluated. If so, it will be
1648 called with the group name as the parameter, and should return a
1654 ;;; Internal variables
1656 (defvar gnus-english-month-names
1657 '("January" "February" "March" "April" "May" "June" "July" "August"
1658 "September" "October" "November" "December"))
1660 (defvar article-goto-body-goes-to-point-min-p nil)
1661 (defvar gnus-article-wash-types nil)
1662 (defvar gnus-article-emphasis-alist nil)
1663 (defvar gnus-article-image-alist nil)
1665 (defvar gnus-article-mime-handle-alist-1 nil)
1666 (defvar gnus-treatment-function-alist
1667 '((gnus-treat-x-pgp-sig gnus-article-verify-x-pgp-sig)
1668 (gnus-treat-strip-banner gnus-article-strip-banner)
1669 (gnus-treat-strip-headers-in-body gnus-article-strip-headers-in-body)
1670 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1671 (gnus-treat-buttonize gnus-article-add-buttons)
1672 (gnus-treat-fill-article gnus-article-fill-cited-article)
1673 (gnus-treat-fill-long-lines gnus-article-fill-cited-long-lines)
1674 (gnus-treat-strip-cr gnus-article-remove-cr)
1675 (gnus-treat-unsplit-urls gnus-article-unsplit-urls)
1676 (gnus-treat-date-ut gnus-article-date-ut)
1677 (gnus-treat-date-local gnus-article-date-local)
1678 (gnus-treat-date-english gnus-article-date-english)
1679 (gnus-treat-date-original gnus-article-date-original)
1680 (gnus-treat-date-user-defined gnus-article-date-user)
1681 (gnus-treat-date-iso8601 gnus-article-date-iso8601)
1682 (gnus-treat-date-lapsed gnus-article-date-lapsed)
1683 (gnus-treat-display-x-face gnus-article-display-x-face)
1684 (gnus-treat-display-face gnus-article-display-face)
1685 (gnus-treat-hide-headers gnus-article-maybe-hide-headers)
1686 (gnus-treat-hide-boring-headers gnus-article-hide-boring-headers)
1687 (gnus-treat-hide-signature gnus-article-hide-signature)
1688 (gnus-treat-strip-list-identifiers gnus-article-hide-list-identifiers)
1689 (gnus-treat-leading-whitespace gnus-article-remove-leading-whitespace)
1690 (gnus-treat-from-picon gnus-treat-from-picon)
1691 (gnus-treat-mail-picon gnus-treat-mail-picon)
1692 (gnus-treat-newsgroups-picon gnus-treat-newsgroups-picon)
1693 (gnus-treat-strip-pem gnus-article-hide-pem)
1694 (gnus-treat-from-gravatar gnus-treat-from-gravatar)
1695 (gnus-treat-mail-gravatar gnus-treat-mail-gravatar)
1696 (gnus-treat-highlight-headers gnus-article-highlight-headers)
1697 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1698 (gnus-treat-strip-trailing-blank-lines
1699 gnus-article-remove-trailing-blank-lines)
1700 (gnus-treat-strip-leading-blank-lines
1701 gnus-article-strip-leading-blank-lines)
1702 (gnus-treat-strip-multiple-blank-lines
1703 gnus-article-strip-multiple-blank-lines)
1704 (gnus-treat-overstrike gnus-article-treat-overstrike)
1705 (gnus-treat-ansi-sequences gnus-article-treat-ansi-sequences)
1706 (gnus-treat-unfold-headers gnus-article-treat-unfold-headers)
1707 (gnus-treat-fold-newsgroups gnus-article-treat-fold-newsgroups)
1708 (gnus-treat-fold-headers gnus-article-treat-fold-headers)
1709 (gnus-treat-buttonize-head gnus-article-add-buttons-to-head)
1710 (gnus-treat-display-smileys gnus-treat-smiley)
1711 (gnus-treat-capitalize-sentences gnus-article-capitalize-sentences)
1712 (gnus-treat-wash-html gnus-article-wash-html)
1713 (gnus-treat-emphasize gnus-article-emphasize)
1714 (gnus-treat-hide-citation gnus-article-hide-citation)
1715 (gnus-treat-hide-citation-maybe gnus-article-hide-citation-maybe)
1716 (gnus-treat-highlight-citation gnus-article-highlight-citation)
1717 (gnus-treat-body-boundary gnus-article-treat-body-boundary)))
1719 (defvar gnus-article-mime-handle-alist nil)
1720 (defvar article-lapsed-timer nil)
1721 (defvar gnus-article-current-summary nil)
1723 (defvar gnus-article-mode-syntax-table
1724 (let ((table (copy-syntax-table text-mode-syntax-table)))
1725 ;; This causes the citation match run O(2^n).
1726 ;; (modify-syntax-entry ?- "w" table)
1727 (modify-syntax-entry ?> ")<" table)
1728 (modify-syntax-entry ?< "(>" table)
1729 ;; make M-. in article buffers work for `foo' strings
1730 (modify-syntax-entry ?' " " table)
1731 (modify-syntax-entry ?` " " table)
1733 "Syntax table used in article mode buffers.
1734 Initialized from `text-mode-syntax-table.")
1736 (defvar gnus-save-article-buffer nil)
1738 (defvar gnus-number-of-articles-to-be-saved nil)
1740 (defvar gnus-inhibit-hiding nil)
1742 (defvar gnus-article-edit-mode nil)
1744 ;;; Macros for dealing with the article buffer.
1746 (defmacro gnus-with-article-headers (&rest forms)
1747 `(with-current-buffer gnus-article-buffer
1749 (let ((inhibit-read-only t)
1750 (inhibit-point-motion-hooks t)
1751 (case-fold-search t))
1752 (article-narrow-to-head)
1755 (put 'gnus-with-article-headers 'lisp-indent-function 0)
1756 (put 'gnus-with-article-headers 'edebug-form-spec '(body))
1758 (defmacro gnus-with-article-buffer (&rest forms)
1759 `(with-current-buffer gnus-article-buffer
1760 (let ((inhibit-read-only t))
1763 (put 'gnus-with-article-buffer 'lisp-indent-function 0)
1764 (put 'gnus-with-article-buffer 'edebug-form-spec '(body))
1766 (defun gnus-article-goto-header (header)
1767 "Go to HEADER, which is a regular expression."
1768 (re-search-forward (concat "^\\(" header "\\):") nil t))
1770 (defsubst gnus-article-hide-text (b e props)
1771 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1772 (gnus-add-text-properties-when 'article-type nil b e props)
1773 (when (memq 'intangible props)
1775 (max (1- b) (point-min))
1776 b 'intangible (cddr (memq 'intangible props)))))
1778 (defsubst gnus-article-unhide-text (b e)
1779 "Remove hidden text properties from region between B and E."
1780 (remove-text-properties b e gnus-hidden-properties)
1781 (when (memq 'intangible gnus-hidden-properties)
1782 (put-text-property (max (1- b) (point-min))
1783 b 'intangible nil)))
1785 (defun gnus-article-hide-text-type (b e type)
1786 "Hide text of TYPE between B and E."
1787 (gnus-add-wash-type type)
1788 (gnus-article-hide-text
1789 b e (cons 'article-type (cons type gnus-hidden-properties))))
1791 (defun gnus-article-unhide-text-type (b e type)
1792 "Unhide text of TYPE between B and E."
1793 (gnus-delete-wash-type type)
1794 (remove-text-properties
1795 b e (cons 'article-type (cons type gnus-hidden-properties)))
1796 (when (memq 'intangible gnus-hidden-properties)
1797 (put-text-property (max (1- b) (point-min))
1798 b 'intangible nil)))
1800 (defun gnus-article-hide-text-of-type (type)
1801 "Hide text of TYPE in the current buffer."
1803 (let ((b (point-min))
1805 (while (setq b (text-property-any b e 'article-type type))
1806 (add-text-properties b (incf b) gnus-hidden-properties)))))
1808 (defun gnus-article-delete-text-of-type (type)
1809 "Delete text of TYPE in the current buffer."
1811 (let ((b (point-min)))
1812 (if (eq type 'multipart)
1813 ;; Remove MIME buttons associated with multipart/alternative parts.
1816 (while (if (get-text-property (point) 'gnus-part)
1818 (when (setq b (next-single-property-change (point)
1823 (skip-chars-forward "\n")
1824 (when (eq (get-text-property b 'article-type) 'multipart)
1825 (delete-region b (point)))))
1826 (while (setq b (text-property-any b (point-max) 'article-type type))
1828 b (or (text-property-not-all b (point-max) 'article-type type)
1831 (defun gnus-article-delete-invisible-text ()
1832 "Delete all invisible text in the current buffer."
1834 (let ((b (point-min)))
1835 (while (setq b (text-property-any b (point-max) 'invisible t))
1837 b (or (text-property-not-all b (point-max) 'invisible t)
1840 (defun gnus-article-text-type-exists-p (type)
1841 "Say whether any text of type TYPE exists in the buffer."
1842 (text-property-any (point-min) (point-max) 'article-type type))
1844 (defsubst gnus-article-header-rank ()
1845 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1846 (let ((list gnus-sorted-header-list)
1849 (if (looking-at (car list))
1851 (setq list (cdr list))
1855 (defun article-hide-headers (&optional arg delete)
1856 "Hide unwanted headers and possibly sort them as well."
1858 ;; This function might be inhibited.
1859 (unless gnus-inhibit-hiding
1860 (let ((inhibit-read-only t)
1861 (case-fold-search t)
1862 (max (1+ (length gnus-sorted-header-list)))
1863 (inhibit-point-motion-hooks t)
1864 (cur (current-buffer))
1865 ignored visible beg)
1867 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1868 ;; group parameters, so we should go to the summary buffer.
1871 (progn (set-buffer gnus-summary-buffer) t)
1873 (setq ignored (when (not gnus-visible-headers)
1874 (cond ((stringp gnus-ignored-headers)
1875 gnus-ignored-headers)
1876 ((listp gnus-ignored-headers)
1877 (mapconcat 'identity
1878 gnus-ignored-headers
1880 visible (cond ((stringp gnus-visible-headers)
1881 gnus-visible-headers)
1882 ((and gnus-visible-headers
1883 (listp gnus-visible-headers))
1884 (mapconcat 'identity
1885 gnus-visible-headers
1889 ;; First we narrow to just the headers.
1890 (article-narrow-to-head)
1891 ;; Hide any "From " lines at the beginning of (mail) articles.
1892 (while (looking-at "From ")
1895 (delete-region (point-min) (point)))
1896 ;; Then treat the rest of the header lines.
1897 ;; Then we use the two regular expressions
1898 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1899 ;; select which header lines is to remain visible in the
1901 (while (re-search-forward "^[^ \t:]*:" nil t)
1903 ;; Mark the rank of the header.
1905 (point) (1+ (point)) 'message-rank
1906 (if (or (and visible (looking-at visible))
1908 (not (looking-at ignored))))
1909 (gnus-article-header-rank)
1912 (message-sort-headers-1)
1913 (when (setq beg (text-property-any
1914 (point-min) (point-max) 'message-rank (+ 2 max)))
1915 ;; We delete the unwanted headers.
1916 (gnus-add-wash-type 'headers)
1917 (add-text-properties (point-min) (+ 5 (point-min))
1918 '(article-type headers dummy-invisible t))
1919 (delete-region beg (point-max))))))))
1921 (defun article-hide-boring-headers (&optional arg)
1922 "Toggle hiding of headers that aren't very interesting.
1923 If given a negative prefix, always show; if given a positive prefix,
1925 (interactive (gnus-article-hidden-arg))
1926 (when (and (not (gnus-article-check-hidden-text 'boring-headers arg))
1927 (not gnus-show-all-headers))
1930 (let ((inhibit-read-only t)
1931 (inhibit-point-motion-hooks t))
1932 (article-narrow-to-head)
1933 (dolist (elem gnus-boring-article-headers)
1934 (goto-char (point-min))
1936 ;; Hide empty headers.
1938 (while (re-search-forward "^[^: \t]+:[ \t]*\n[^ \t]" nil t)
1940 (gnus-article-hide-text-type
1944 (if (re-search-forward "^[^ \t]" nil t)
1948 ;; Hide boring Newsgroups header.
1949 ((eq elem 'newsgroups)
1950 (when (gnus-string-equal
1951 (gnus-fetch-field "newsgroups")
1952 (gnus-group-real-name
1953 (if (boundp 'gnus-newsgroup-name)
1956 (gnus-article-hide-header "newsgroups")))
1957 ((eq elem 'to-address)
1958 (let ((to (message-fetch-field "to"))
1960 (gnus-parameter-to-address
1961 (if (boundp 'gnus-newsgroup-name)
1962 gnus-newsgroup-name ""))))
1963 (when (and to to-address
1966 ;; only one address in To
1967 (nth 1 (mail-extract-address-components to))
1969 (gnus-article-hide-header "to"))))
1971 (let ((to (message-fetch-field "to"))
1973 (gnus-parameter-to-list
1974 (if (boundp 'gnus-newsgroup-name)
1975 gnus-newsgroup-name ""))))
1976 (when (and to to-list
1979 ;; only one address in To
1980 (nth 1 (mail-extract-address-components to))
1982 (gnus-article-hide-header "to"))))
1984 (let ((cc (message-fetch-field "cc"))
1986 (gnus-parameter-to-list
1987 (if (boundp 'gnus-newsgroup-name)
1988 gnus-newsgroup-name ""))))
1989 (when (and cc to-list
1992 ;; only one address in CC
1993 (nth 1 (mail-extract-address-components cc))
1995 (gnus-article-hide-header "cc"))))
1996 ((eq elem 'followup-to)
1997 (when (gnus-string-equal
1998 (message-fetch-field "followup-to")
1999 (message-fetch-field "newsgroups"))
2000 (gnus-article-hide-header "followup-to")))
2001 ((eq elem 'reply-to)
2002 (if (gnus-group-find-parameter
2003 gnus-newsgroup-name 'broken-reply-to)
2004 (gnus-article-hide-header "reply-to")
2005 (let ((from (message-fetch-field "from"))
2006 (reply-to (message-fetch-field "reply-to")))
2013 (lambda (x) (downcase (cadr x)))
2014 (mail-extract-address-components from t))
2017 (lambda (x) (downcase (cadr x)))
2018 (mail-extract-address-components reply-to t))
2020 (gnus-article-hide-header "reply-to")))))
2022 (let ((date (with-current-buffer gnus-original-article-buffer
2023 ;; If date in `gnus-article-buffer' is localized
2024 ;; (`gnus-treat-date-user-defined'),
2025 ;; `days-between' might fail.
2026 (message-fetch-field "date"))))
2028 (< (days-between (current-time-string) date)
2030 (gnus-article-hide-header "date"))))
2032 (let ((to (message-fetch-field "to"))
2033 (cc (message-fetch-field "cc")))
2034 (when (> (length to) 1024)
2035 (gnus-article-hide-header "to"))
2036 (when (> (length cc) 1024)
2037 (gnus-article-hide-header "cc"))))
2041 (goto-char (point-min))
2042 (while (re-search-forward "^to:" nil t)
2043 (setq to-count (1+ to-count)))
2044 (when (> to-count 1)
2045 (while (> to-count 0)
2046 (goto-char (point-min))
2048 (re-search-forward "^to:" nil nil to-count)
2050 (narrow-to-region (point) (point-max))
2051 (gnus-article-hide-header "to"))
2052 (setq to-count (1- to-count))))
2053 (goto-char (point-min))
2054 (while (re-search-forward "^cc:" nil t)
2055 (setq cc-count (1+ cc-count)))
2056 (when (> cc-count 1)
2057 (while (> cc-count 0)
2058 (goto-char (point-min))
2060 (re-search-forward "^cc:" nil nil cc-count)
2062 (narrow-to-region (point) (point-max))
2063 (gnus-article-hide-header "cc"))
2064 (setq cc-count (1- cc-count)))))))))))))
2066 (defun gnus-article-hide-header (header)
2068 (goto-char (point-min))
2069 (when (re-search-forward (concat "^" header ":") nil t)
2070 (gnus-article-hide-text-type
2074 (if (re-search-forward "^[^ \t]" nil t)
2079 (defvar gnus-article-normalized-header-length 40
2080 "Length of normalized headers.")
2082 (defun article-normalize-headers ()
2083 "Make all header lines 40 characters long."
2085 (let ((inhibit-read-only t)
2089 (article-narrow-to-head)
2092 ((< (setq column (- (point-at-eol) (point)))
2093 gnus-article-normalized-header-length)
2095 (insert (make-string
2096 (- gnus-article-normalized-header-length column)
2098 ((> column gnus-article-normalized-header-length)
2099 (gnus-put-text-property
2101 (forward-char gnus-article-normalized-header-length)
2108 (forward-line 1))))))
2110 (defun article-treat-dumbquotes ()
2111 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2112 Note that this function guesses whether a character is a sm*rtq**t* or
2113 not, so it should only be used interactively.
2115 Sm*rtq**t*s are M****s***'s unilateral extension to the
2116 iso-8859-1 character map in an attempt to provide more quoting
2117 characters. If you see something like \\222 or \\264 where
2118 you're expecting some kind of apostrophe or quotation mark, then
2121 (article-translate-strings gnus-article-dumbquotes-map))
2123 (defvar org-entities)
2125 (defun article-treat-non-ascii ()
2126 "Translate many Unicode characters into their ASCII equivalents."
2128 (require 'org-entities)
2129 (let ((table (make-char-table (if (featurep 'xemacs) 'generic))))
2130 (dolist (elem org-entities)
2131 (when (and (listp elem)
2132 (= (length (nth 6 elem)) 1))
2133 (if (featurep 'xemacs)
2134 (put-char-table (aref (nth 6 elem) 0) (nth 4 elem) table)
2135 (set-char-table-range table (aref (nth 6 elem) 0) (nth 4 elem)))))
2137 (when (article-goto-body)
2138 (let ((inhibit-read-only t)
2141 (if (not (setq replace (if (featurep 'xemacs)
2142 (get-char-table (following-char) table)
2143 (aref table (following-char)))))
2146 (setq props (text-properties-at (point)))
2148 (add-text-properties (point) (progn (insert replace) (point))
2150 (insert replace)))))))))
2152 (defun article-translate-characters (from to)
2153 "Translate all characters in the body of the article according to FROM and TO.
2154 FROM is a string of characters to translate from; to is a string of
2155 characters to translate to."
2157 (when (article-goto-body)
2158 (let ((inhibit-read-only t)
2159 (x (make-string 225 ?x))
2161 (while (< (incf i) (length x))
2164 (while (< i (length from))
2165 (aset x (aref from i) (aref to i))
2167 (translate-region (point) (point-max) x)))))
2169 (defun article-translate-strings (map)
2170 "Translate all string in the body of the article according to MAP.
2171 MAP is an alist where the elements are on the form (\"from\" \"to\")."
2173 (when (article-goto-body)
2174 (let ((inhibit-read-only t))
2176 (let ((from (car elem))
2180 (while (search-forward from nil t)
2183 (if (eq (following-char) from)
2187 (forward-char 1)))))))))))
2189 (defun article-treat-overstrike ()
2190 "Translate overstrikes into bold text."
2193 (when (article-goto-body)
2194 (let ((inhibit-read-only t))
2195 (while (search-forward "\b" nil t)
2196 (let ((next (char-after))
2197 (previous (char-after (- (point) 2))))
2198 ;; We do the boldification/underlining by hiding the
2199 ;; overstrikes and putting the proper text property
2203 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
2204 (put-text-property (point) (1+ (point)) 'face 'bold))
2206 (gnus-article-hide-text-type
2207 (1- (point)) (1+ (point)) 'overstrike)
2209 (- (point) 2) (1- (point)) 'face 'underline))
2211 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
2213 (point) (1+ (point)) 'face 'underline)))))))))
2215 (defun article-treat-ansi-sequences ()
2216 "Translate ANSI SGR control sequences into overlays or extents."
2219 (when (article-goto-body)
2220 (let ((inhibit-read-only t))
2221 (ansi-color-apply-on-region (point) (point-max))))))
2223 (defun gnus-article-treat-unfold-headers ()
2224 "Unfold folded message headers.
2225 Only the headers that fit into the current window width will be
2228 (gnus-with-article-headers
2232 (mail-header-narrow-to-field)
2233 (let* ((header (buffer-string))
2235 (or (equal gnus-article-unfold-long-headers t)
2236 (and (stringp gnus-article-unfold-long-headers)
2237 (string-match gnus-article-unfold-long-headers header)))))
2240 (goto-char (point-min))
2241 (while (re-search-forward "\n[\t ]" nil t)
2242 (replace-match " " t t)))
2243 (setq length (- (point-max) (point-min) 1))
2244 (when (or unfoldable
2245 (< length (window-width)))
2246 (while (re-search-forward "\n[\t ]" nil t)
2247 (replace-match " " t t))))
2248 (goto-char (point-max)))))))
2250 (defun gnus-article-treat-fold-headers ()
2251 "Fold message headers."
2253 (gnus-with-article-headers
2256 (mail-header-narrow-to-field)
2257 (mail-header-fold-field)
2258 (goto-char (point-max))))))
2260 (defun gnus-treat-smiley ()
2261 "Toggle display of textual emoticons (\"smileys\") as small graphical icons."
2263 (gnus-with-article-buffer
2264 (if (memq 'smiley gnus-article-wash-types)
2265 (gnus-delete-images 'smiley)
2267 (let ((images (smiley-region (point) (point-max))))
2269 (gnus-add-wash-type 'smiley)
2270 (dolist (image images)
2271 (gnus-add-image 'smiley image)))))))
2273 (defun gnus-article-remove-images ()
2274 "Remove all images from the article buffer."
2276 (gnus-with-article-buffer
2277 (dolist (elem gnus-article-image-alist)
2278 (gnus-delete-images (car elem)))))
2280 (defun gnus-article-show-images ()
2281 "Show any images that are in the HTML-rendered article buffer.
2282 This only works if the article in question is HTML."
2284 (gnus-with-article-buffer
2285 (dolist (region (gnus-find-text-property-region (point-min) (point-max)
2287 (destructuring-bind (start end function) region
2288 (funcall function (get-text-property start 'image-url)
2291 (defun gnus-article-treat-fold-newsgroups ()
2292 "Unfold folded message headers.
2293 Only the headers that fit into the current window width will be
2296 (gnus-with-article-headers
2297 (while (gnus-article-goto-header "newsgroups\\|followup-to")
2299 (mail-header-narrow-to-field)
2300 (while (re-search-forward ", *" nil t)
2301 (replace-match ", " t t))
2302 (mail-header-fold-field)
2303 (goto-char (point-max))))))
2305 (defcustom gnus-article-truncate-lines (default-value 'truncate-lines)
2306 "Value of `truncate-lines' in Gnus Article buffer.
2307 Valid values are nil, t, `head', `first', `last', an integer or a
2308 predicate. See Info node `(gnus)Customizing Articles'."
2309 :version "23.1" ;; No Gnus
2310 :group 'gnus-article
2311 ;; :link '(custom-manual "(gnus)Customizing Articles")
2314 (defun gnus-article-toggle-truncate-lines (&optional arg)
2315 "Toggle whether to fold or truncate long lines in article the buffer.
2316 If ARG is non-nil and not a number, toggle
2317 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2318 long lines if and only if arg is positive."
2321 ((and (numberp arg) (> arg 0))
2322 (setq gnus-article-truncate-lines t))
2324 (setq gnus-article-truncate-lines nil))
2326 (setq gnus-article-truncate-lines
2327 (not gnus-article-truncate-lines))))
2328 (gnus-with-article-buffer
2330 ((and (numberp arg) (> arg 0))
2331 (setq truncate-lines nil))
2333 (setq truncate-lines t)))
2334 ;; In versions of Emacs 22 (CVS) before 2006-05-26,
2335 ;; `toggle-truncate-lines' needs an argument.
2336 (toggle-truncate-lines)))
2338 (defun gnus-article-treat-body-boundary ()
2339 "Place a boundary line at the end of the headers."
2341 (when (and gnus-body-boundary-delimiter
2342 (> (length gnus-body-boundary-delimiter) 0))
2343 (gnus-with-article-headers
2344 (goto-char (point-max))
2345 (let ((start (point)))
2346 (insert "X-Boundary: ")
2347 (gnus-add-text-properties start (point) '(invisible t intangible t))
2349 (while (>= (window-width) (length str))
2350 (setq str (concat str gnus-body-boundary-delimiter)))
2351 (substring str 0 (window-width)))
2353 (gnus-put-text-property start (point) 'gnus-decoration 'header)))))
2355 (defun article-fill-long-lines ()
2356 "Fill lines that are wider than the window width."
2359 (let ((inhibit-read-only t)
2360 (width (window-width (get-buffer-window (current-buffer)))))
2363 (let ((adaptive-fill-mode nil)) ;Why? -sm
2366 (when (>= (current-column) (min fill-column width))
2367 (narrow-to-region (min (1+ (point)) (point-max))
2369 (let ((goback (point-marker)))
2370 (fill-paragraph nil)
2371 (goto-char (marker-position goback)))
2373 (forward-line 1)))))))
2375 (defun article-capitalize-sentences ()
2376 "Capitalize the first word in each sentence."
2379 (let ((inhibit-read-only t)
2380 (paragraph-start "^[\n\^L]"))
2384 (forward-sentence)))))
2386 (defun article-remove-cr ()
2387 "Remove trailing CRs and then translate remaining CRs into LFs."
2390 (let ((inhibit-read-only t))
2391 (goto-char (point-min))
2392 (while (re-search-forward "\r+$" nil t)
2393 (replace-match "" t t))
2394 (goto-char (point-min))
2395 (while (search-forward "\r" nil t)
2396 (replace-match "\n" t t)))))
2398 (defun article-remove-trailing-blank-lines ()
2399 "Remove all trailing blank lines from the article."
2402 (let ((inhibit-read-only t))
2403 (goto-char (point-max))
2407 (while (and (not (bobp))
2408 (looking-at "^[ \t]*$")
2409 (not (gnus-annotation-in-region-p
2410 (point) (point-at-eol))))
2415 (defvar gnus-face-properties-alist)
2417 (defun article-display-face (&optional force)
2418 "Display any Face headers in the header."
2419 (interactive (list 'force))
2420 (let ((wash-face-p buffer-read-only))
2421 (gnus-with-article-headers
2422 ;; When displaying parts, this function can be called several times on
2423 ;; the same article, without any intended toggle semantic (as typing `W
2424 ;; D d' would have). So face deletion must occur only when we come from
2425 ;; an interactive command, that is when the *Article* buffer is
2427 (if (and wash-face-p (memq 'face gnus-article-wash-types))
2428 (gnus-delete-images 'face)
2429 (let ((from (message-fetch-field "from"))
2431 (save-current-buffer
2432 (when (and wash-face-p
2433 (gnus-buffer-live-p gnus-original-article-buffer)
2434 (not (re-search-forward "^Face:[\t ]*" nil t)))
2435 (set-buffer gnus-original-article-buffer))
2437 (mail-narrow-to-head)
2439 ;; Check whether this face is censored.
2440 (not (and gnus-article-x-face-too-ugly
2442 (setq from (message-fetch-field "from")))
2443 (string-match gnus-article-x-face-too-ugly
2445 (while (gnus-article-goto-header "Face")
2446 (push (mail-header-field-value) faces)))))
2448 (goto-char (point-min))
2450 (unless (setq from (gnus-article-goto-header "from"))
2453 (insert " [no `from' set]\n"))
2455 (when (setq png (gnus-convert-face-to-png (pop faces)))
2457 (apply 'gnus-create-image png 'png t
2458 (cdr (assq 'png gnus-face-properties-alist))))
2460 (gnus-add-wash-type 'face)
2461 (gnus-add-image 'face image)
2462 (gnus-put-image image nil 'face))))))))))
2464 (defun article-display-x-face (&optional force)
2465 "Look for an X-Face header and display it if present."
2466 (interactive (list 'force))
2467 (let ((wash-face-p buffer-read-only)) ;; When type `W f'
2468 (gnus-with-article-headers
2469 ;; Delete the old process, if any.
2470 (when (process-status "article-x-face")
2471 (delete-process "article-x-face"))
2472 ;; See the comment in `article-display-face'.
2473 (if (and wash-face-p (memq 'xface gnus-article-wash-types))
2474 ;; We have already displayed X-Faces, so we remove them
2476 (gnus-delete-images 'xface)
2478 (let ((from (message-fetch-field "from"))
2480 (save-current-buffer
2481 (when (and wash-face-p
2482 (gnus-buffer-live-p gnus-original-article-buffer)
2483 (not (re-search-forward "^X-Face:[\t ]*" nil t)))
2484 ;; If type `W f', use gnus-original-article-buffer,
2485 ;; otherwise use the current buffer because displaying
2486 ;; RFC822 parts calls this function too.
2487 (set-buffer gnus-original-article-buffer))
2489 (mail-narrow-to-head)
2490 (and gnus-article-x-face-command
2492 ;; Check whether this face is censored.
2493 (not (and gnus-article-x-face-too-ugly
2495 (setq from (message-fetch-field "from")))
2496 (string-match gnus-article-x-face-too-ugly
2498 (while (gnus-article-goto-header "X-Face")
2499 (push (mail-header-field-value) x-faces)))))
2501 ;; We display the face.
2502 (cond ((functionp gnus-article-x-face-command)
2503 ;; The command is a lisp function, so we call it.
2504 (mapc gnus-article-x-face-command x-faces))
2505 ((stringp gnus-article-x-face-command)
2506 ;; The command is a string, so we interpret the command
2507 ;; as a, well, command, and fork it off.
2508 (let ((process-connection-type nil))
2509 (gnus-set-process-query-on-exit-flag
2511 "article-x-face" nil shell-file-name
2512 shell-command-switch gnus-article-x-face-command)
2514 ;; Sending multiple EOFs to xv doesn't work,
2515 ;; so we only do a single external face.
2517 (insert (car x-faces))
2518 (process-send-region "article-x-face"
2519 (point-min) (point-max)))
2520 (process-send-eof "article-x-face")))
2522 (error "`%s' set to `%s' is not a function"
2523 gnus-article-x-face-command
2524 'gnus-article-x-face-command)))))))))
2526 (defun article-decode-mime-words ()
2527 "Decode all MIME-encoded words in the article."
2529 (gnus-with-article-buffer
2530 (let ((inhibit-point-motion-hooks t)
2531 (mail-parse-charset gnus-newsgroup-charset)
2532 (mail-parse-ignored-charsets
2533 (with-current-buffer gnus-summary-buffer
2534 gnus-newsgroup-ignored-charsets)))
2535 (mail-decode-encoded-word-region (point-min) (point-max)))))
2537 (defun article-decode-charset (&optional prompt)
2538 "Decode charset-encoded text in the article.
2539 If PROMPT (the prefix), prompt for a coding system to use."
2541 (let ((inhibit-point-motion-hooks t) (case-fold-search t)
2542 (inhibit-read-only t)
2543 (mail-parse-charset gnus-newsgroup-charset)
2544 (mail-parse-ignored-charsets
2545 (save-excursion (condition-case nil
2546 (set-buffer gnus-summary-buffer)
2548 gnus-newsgroup-ignored-charsets))
2549 ct cte ctl charset format)
2552 (article-narrow-to-head)
2553 (setq ct (message-fetch-field "Content-Type" t)
2554 cte (message-fetch-field "Content-Transfer-Encoding" t)
2555 ctl (and ct (mail-header-parse-content-type ct))
2558 (mm-read-coding-system "Charset to decode: "))
2560 (mail-content-type-get ctl 'charset)))
2561 format (and ctl (mail-content-type-get ctl 'format)))
2563 (setq cte (mail-header-strip cte)))
2564 (if (and ctl (not (string-match "/" (car ctl))))
2566 (goto-char (point-max)))
2569 (narrow-to-region (point) (point-max))
2570 (when (and (eq mail-parse-charset 'gnus-decoded)
2571 (eq (mm-body-7-or-8) '8bit))
2572 ;; The text code could have been decoded.
2573 (setq charset mail-parse-charset))
2574 (when (and (or (not ctl)
2575 (equal (car ctl) "text/plain"))
2576 (not format)) ;; article with format will decode later.
2578 charset (and cte (intern (downcase
2579 (gnus-strip-whitespace cte))))
2582 (defun article-decode-encoded-words ()
2583 "Remove encoded-word encoding from headers."
2584 (let ((inhibit-point-motion-hooks t)
2585 (mail-parse-charset gnus-newsgroup-charset)
2586 (mail-parse-ignored-charsets
2587 (save-excursion (condition-case nil
2588 (set-buffer gnus-summary-buffer)
2590 gnus-newsgroup-ignored-charsets))
2591 (inhibit-read-only t)
2593 (goto-char (point-min))
2594 (when (search-forward "\n\n" nil 'move)
2601 (memq (char-after) '(?\t ? )))))
2602 (setq start (point))
2604 \\(?:Resent-\\)?\\(?:From\\|Cc\\|To\\|Bcc\\|\\(?:In-\\)?Reply-To\\|Sender\
2605 \\|Mail-Followup-To\\|Mail-Copies-To\\|Approved\\):")
2606 (funcall gnus-decode-address-function start end)
2607 (funcall gnus-decode-header-function start end))
2608 (goto-char (setq end start)))))
2610 (defun article-decode-group-name ()
2611 "Decode group names in Newsgroups, Followup-To and Xref headers."
2612 (let ((inhibit-point-motion-hooks t)
2613 (inhibit-read-only t)
2614 (method (gnus-find-method-for-group gnus-newsgroup-name))
2616 (when (and (or gnus-group-name-charset-method-alist
2617 gnus-group-name-charset-group-alist)
2618 (gnus-buffer-live-p gnus-original-article-buffer))
2620 (article-narrow-to-head)
2621 (dolist (header '("Newsgroups" "Followup-To" "Xref"))
2622 (with-current-buffer gnus-original-article-buffer
2623 (goto-char (point-min)))
2624 (setq regexp (concat "^" header
2625 ":\\([^\n]*\\(?:\n[\t ]+[^\n]+\\)*\\)\n"))
2626 (while (re-search-forward regexp nil t)
2627 (replace-match (save-match-data
2628 (gnus-decode-newsgroups
2629 ;; XXX how to use data in article buffer?
2630 (with-current-buffer gnus-original-article-buffer
2631 (re-search-forward regexp nil t)
2633 gnus-newsgroup-name method))
2635 (goto-char (point-min)))))))
2637 (autoload 'idna-to-unicode "idna")
2639 (defun article-decode-idna-rhs ()
2640 "Decode IDNA strings in RHS in various headers in current buffer.
2641 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2642 Mail-Reply-To: and Mail-Followup-To:."
2645 (let ((inhibit-point-motion-hooks t)
2646 (inhibit-read-only t))
2647 (article-narrow-to-head)
2648 (goto-char (point-min))
2649 (while (re-search-forward "@[^ \t\n\r,>]*\\(xn--[-A-Za-z0-9.]*\\)[ \t\n\r,>]" nil t)
2651 (when (save-match-data
2652 (and (setq ace (match-string 1))
2654 (and (re-search-backward "^[^ \t]" nil t)
2655 (looking-at "From\\|To\\|Cc\\|Reply-To\\|Mail-Reply-To\\|Mail-Followup-To")))
2656 (setq unicode (idna-to-unicode ace))))
2657 (unless (string= ace unicode)
2658 (replace-match unicode nil nil nil 1)))))))))
2660 (defun article-de-quoted-unreadable (&optional force read-charset)
2661 "Translate a quoted-printable-encoded article.
2662 If FORCE, decode the article whether it is marked as quoted-printable
2664 If READ-CHARSET, ask for a coding system."
2665 (interactive (list 'force current-prefix-arg))
2667 (let ((inhibit-read-only t) type charset)
2668 (if (gnus-buffer-live-p gnus-original-article-buffer)
2669 (with-current-buffer gnus-original-article-buffer
2671 (gnus-fetch-field "content-transfer-encoding"))
2672 (let* ((ct (gnus-fetch-field "content-type"))
2673 (ctl (and ct (mail-header-parse-content-type ct))))
2674 (setq charset (and ctl
2675 (mail-content-type-get ctl 'charset)))
2676 (if (stringp charset)
2677 (setq charset (intern (downcase charset)))))))
2679 (setq charset (mm-read-coding-system "Charset: " charset)))
2681 (setq charset gnus-newsgroup-charset))
2683 (and type (let ((case-fold-search t))
2684 (string-match "quoted-printable" type))))
2686 (quoted-printable-decode-region
2687 (point) (point-max) (mm-charset-to-coding-system charset))))))
2689 (defun article-de-base64-unreadable (&optional force read-charset)
2690 "Translate a base64 article.
2691 If FORCE, decode the article whether it is marked as base64 not.
2692 If READ-CHARSET, ask for a coding system."
2693 (interactive (list 'force current-prefix-arg))
2695 (let ((inhibit-read-only t) type charset)
2696 (if (gnus-buffer-live-p gnus-original-article-buffer)
2697 (with-current-buffer gnus-original-article-buffer
2699 (gnus-fetch-field "content-transfer-encoding"))
2700 (let* ((ct (gnus-fetch-field "content-type"))
2701 (ctl (and ct (mail-header-parse-content-type ct))))
2702 (setq charset (and ctl
2703 (mail-content-type-get ctl 'charset)))
2704 (if (stringp charset)
2705 (setq charset (intern (downcase charset)))))))
2707 (setq charset (mm-read-coding-system "Charset: " charset)))
2709 (setq charset gnus-newsgroup-charset))
2711 (and type (let ((case-fold-search t))
2712 (string-match "base64" type))))
2715 (narrow-to-region (point) (point-max))
2716 (base64-decode-region (point-min) (point-max))
2717 (mm-decode-coding-region
2718 (point-min) (point-max) (mm-charset-to-coding-system charset)))))))
2723 (defun article-decode-HZ ()
2724 "Translate a HZ-encoded article."
2728 (let ((inhibit-read-only t))
2729 (rfc1843-decode-region (point-min) (point-max)))))
2731 (defun article-unsplit-urls ()
2732 "Remove the newlines that some other mailers insert into URLs."
2735 (let ((inhibit-read-only t))
2736 (goto-char (point-min))
2737 (while (re-search-forward
2738 "\\(\\(https?\\|ftp\\)://\\S-+\\) *\n\\(\\S-+\\)" nil t)
2739 (replace-match "\\1\\3" t)))
2740 (when (interactive-p)
2741 (gnus-treat-article nil))))
2743 (defun article-wash-html ()
2744 "Format an HTML article."
2747 (buffer-read-only nil))
2748 (when (gnus-buffer-live-p gnus-original-article-buffer)
2749 (setq handles (mm-dissect-buffer t t)))
2751 (delete-region (point) (point-max))
2752 (mm-inline-text-html handles)))
2754 (defvar gnus-article-browse-html-temp-list nil
2755 "List of temporary files created by `gnus-article-browse-html-parts'.
2756 Internal variable.")
2758 (defcustom gnus-article-browse-delete-temp 'ask
2759 "What to do with temporary files from `gnus-article-browse-html-parts'.
2760 If nil, don't delete temporary files. If it is t, delete them on
2761 exit from the summary buffer. If it is the symbol `file', query
2762 on each file, if it is `ask' ask once when exiting from the
2764 :group 'gnus-article
2765 :version "23.1" ;; No Gnus
2766 :type '(choice (const :tag "Don't delete" nil)
2767 (const :tag "Don't ask" t)
2768 (const :tag "Ask" ask)
2769 (const :tag "Ask for each file" file)))
2771 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2773 (defun gnus-article-browse-delete-temp-files (&optional how)
2774 "Delete temp-files created by `gnus-article-browse-html-parts'."
2775 (when (and gnus-article-browse-html-temp-list
2777 (or how (setq how gnus-article-browse-delete-temp))
2779 (let ((files (length gnus-article-browse-html-temp-list)))
2780 (gnus-y-or-n-p (format
2781 "Delete all %s temporary HTML file%s? "
2783 (if (> files 1) "s" ""))))
2785 (dolist (file gnus-article-browse-html-temp-list)
2786 (cond ((file-directory-p file)
2787 (when (or (not (eq how 'file))
2790 "Delete temporary HTML file(s) in directory `%s'? "
2791 (file-name-as-directory file))))
2792 (gnus-delete-directory file)))
2793 ((file-exists-p file)
2794 (when (or (not (eq how 'file))
2796 (format "Delete temporary HTML file `%s'? " file)))
2797 (delete-file file)))))
2798 ;; Also remove file from the list when not deleted or if file doesn't
2800 (setq gnus-article-browse-html-temp-list nil))
2801 gnus-article-browse-html-temp-list)
2803 (defun gnus-article-browse-html-save-cid-content (cid handles directory)
2804 "Find CID content in HANDLES and save it in a file in DIRECTORY.
2809 (dolist (handle handles)
2811 ((not (listp handle)))
2812 ((equal (mm-handle-media-supertype handle) "multipart")
2813 (when (setq file (gnus-article-browse-html-save-cid-content
2814 cid handle directory))
2815 (throw 'found file)))
2816 ((equal (concat "<" cid ">") (mm-handle-id handle))
2819 (or (mail-content-type-get
2820 (mm-handle-disposition handle) 'filename)
2821 (mail-content-type-get
2822 (setq type (mm-handle-type handle)) 'name)
2824 (make-temp-name "cid")
2825 (car (rassoc (car type) mailcap-mime-extensions))))
2827 (mm-save-part-to-file handle file)
2828 (throw 'found file))))))))
2830 (defun gnus-article-browse-html-parts (list &optional header)
2831 "View all \"text/html\" parts from LIST.
2832 Recurse into multiparts. The optional HEADER that should be a decoded
2833 message header will be added to the bodies of the \"text/html\" parts."
2834 ;; Internal function used by `gnus-article-browse-html-article'.
2835 (let (type file charset content cid-dir tmp-file showed)
2836 ;; Find and show the html-parts.
2837 (dolist (handle list)
2838 ;; If HTML, show it:
2839 (cond ((not (listp handle)))
2840 ((or (equal (car (setq type (mm-handle-type handle))) "text/html")
2841 (and (equal (car type) "message/external-body")
2843 (setq file (or (mail-content-type-get type 'name)
2844 (mail-content-type-get
2845 (mm-handle-disposition handle)
2847 (or (mm-handle-cache handle)
2848 (condition-case code
2849 (progn (mm-extern-cache-contents handle) t)
2851 (gnus-message 3 "%s" (error-message-string code))
2852 (when (>= gnus-verbose 3) (sit-for 2))
2855 (setq handle (mm-handle-cache handle)
2856 type (mm-handle-type handle))
2857 (equal (car type) "text/html"))))
2858 (setq charset (mail-content-type-get type 'charset)
2859 content (mm-get-part handle))
2861 (if (eq charset 'gnus-decoded)
2862 (mm-enable-multibyte)
2863 (mm-disable-multibyte))
2865 ;; resolve cid contents
2866 (let ((case-fold-search t)
2868 (goto-char (point-min))
2869 (while (re-search-forward "\
2870 <img[\t\n ]+\\(?:[^\t\n >]+[\t\n ]+\\)*src=\"\\(cid:\\([^\"]+\\)\\)\""
2873 (setq cid-dir (mm-make-temp-file "cid" t))
2874 (add-to-list 'gnus-article-browse-html-temp-list cid-dir))
2877 (when (setq cid-file
2878 (gnus-article-browse-html-save-cid-content
2880 (with-current-buffer gnus-article-buffer
2881 gnus-article-mime-handles)
2883 (replace-match (concat "file://" cid-file)
2885 (unless content (setq content (buffer-string))))
2886 (when (or charset header (not file))
2887 (setq tmp-file (mm-make-temp-file
2888 ;; Do we need to care for 8.3 filenames?
2889 "mm-" nil ".html")))
2890 ;; Add a meta html tag to specify charset and a header.
2893 (let (title eheader body hcharset coding force-charset)
2895 (mm-enable-multibyte)
2896 (setq case-fold-search t)
2897 (insert header "\n")
2898 (setq title (message-fetch-field "subject"))
2899 (goto-char (point-min))
2900 (while (re-search-forward "\\(<\\)\\|\\(>\\)\\|&" nil t)
2901 (replace-match (cond ((match-beginning 1) "<")
2902 ((match-beginning 2) ">")
2904 (goto-char (point-min))
2906 (goto-char (point-max))
2907 (insert "</pre>\n<hr>\n")
2908 ;; We have to examine charset one by one since
2909 ;; charset specified in parts might be different.
2910 (if (eq charset 'gnus-decoded)
2911 (setq charset 'utf-8
2912 eheader (mm-encode-coding-string (buffer-string)
2915 (mm-encode-coding-string title charset))
2916 body (mm-encode-coding-string content charset)
2918 (setq hcharset (mm-find-mime-charset-region (point-min)
2920 (cond ((= (length hcharset) 1)
2921 (setq hcharset (car hcharset)
2922 coding (mm-charset-to-coding-system
2924 ((> (length hcharset) 1)
2925 (setq hcharset 'utf-8
2931 (mm-charset-to-coding-system charset))
2932 (if (eq coding body)
2933 (setq eheader (mm-encode-coding-string
2934 (buffer-string) coding)
2936 (mm-encode-coding-string
2939 (setq charset 'utf-8
2940 eheader (mm-encode-coding-string
2941 (buffer-string) charset)
2943 (mm-encode-coding-string
2945 body (mm-encode-coding-string
2946 (mm-decode-coding-string
2950 (setq charset hcharset
2951 eheader (mm-encode-coding-string
2952 (buffer-string) coding)
2954 (mm-encode-coding-string
2957 (setq eheader (mm-string-as-unibyte (buffer-string))
2960 (mm-disable-multibyte)
2963 (mm-add-meta-html-tag handle charset force-charset))
2965 (goto-char (point-min))
2966 (unless (search-forward "<title>" nil t)
2967 (re-search-forward "<head>\\s-*" nil t)
2968 (insert "<title>" title "</title>\n")))
2969 (goto-char (point-min))