1 ;;; gnus-art.el --- article mode commands for Gnus
2 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
3 ;; Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
29 (eval-when-compile (require 'cl))
43 (autoload 'gnus-msg-mail "gnus-msg" nil t)
44 (autoload 'gnus-button-mailto "gnus-msg")
45 (autoload 'gnus-button-reply "gnus-msg" nil t)
47 (defgroup gnus-article nil
49 :link '(custom-manual "(gnus)The Article Buffer")
52 (defgroup gnus-article-treat nil
53 "Treating article parts."
54 :link '(custom-manual "(gnus)Article Hiding")
57 (defgroup gnus-article-hiding nil
58 "Hiding article parts."
59 :link '(custom-manual "(gnus)Article Hiding")
62 (defgroup gnus-article-highlight nil
63 "Article highlighting."
64 :link '(custom-manual "(gnus)Article Highlighting")
68 (defgroup gnus-article-signature nil
70 :link '(custom-manual "(gnus)Article Signature")
73 (defgroup gnus-article-headers nil
75 :link '(custom-manual "(gnus)Hiding Headers")
78 (defgroup gnus-article-washing nil
79 "Special commands on articles."
80 :link '(custom-manual "(gnus)Article Washing")
83 (defgroup gnus-article-emphasis nil
84 "Fontisizing articles."
85 :link '(custom-manual "(gnus)Article Fontisizing")
88 (defgroup gnus-article-saving nil
90 :link '(custom-manual "(gnus)Saving Articles")
93 (defgroup gnus-article-mime nil
94 "Worshiping the MIME wonder."
95 :link '(custom-manual "(gnus)Using MIME")
98 (defgroup gnus-article-buttons nil
99 "Pushable buttons in the article buffer."
100 :link '(custom-manual "(gnus)Article Buttons")
101 :group 'gnus-article)
103 (defgroup gnus-article-various nil
104 "Other article options."
105 :link '(custom-manual "(gnus)Misc Article")
106 :group 'gnus-article)
108 (defcustom gnus-ignored-headers
109 '("^Path:" "^Expires:" "^Date-Received:" "^References:" "^Xref:" "^Lines:"
110 "^Relay-Version:" "^Message-ID:" "^Approved:" "^Sender:" "^Received:"
111 "^X-UIDL:" "^MIME-Version:" "^Return-Path:" "^In-Reply-To:"
112 "^Content-Type:" "^Content-Transfer-Encoding:" "^X-WebTV-Signature:"
113 "^X-MimeOLE:" "^X-MSMail-Priority:" "^X-Priority:" "^X-Loop:"
114 "^X-Authentication-Warning:" "^X-MIME-Autoconverted:" "^X-Face"
115 "^X-Attribution:" "^X-Originating-IP:" "^Delivered-To:"
116 "^NNTP-[-A-Za-z]+:" "^Distribution:" "^X-no-archive:" "^X-Trace:"
117 "^X-Complaints-To:" "^X-NNTP-Posting-Host:" "^X-Orig.*:"
118 "^Abuse-Reports-To:" "^Cache-Post-Path:" "^X-Article-Creation-Date:"
119 "^X-Poster:" "^X-Mail2News-Path:" "^X-Server-Date:" "^X-Cache:"
120 "^Originator:" "^X-Problems-To:" "^X-Auth-User:" "^X-Post-Time:"
121 "^X-Admin:" "^X-UID:" "^Resent-[-A-Za-z]+:" "^X-Mailing-List:"
122 "^Precedence:" "^Original-[-A-Za-z]+:" "^X-filename:" "^X-Orcpt:"
123 "^Old-Received:" "^X-Pgp" "^X-Auth:" "^X-From-Line:"
124 "^X-Gnus-Article-Number:" "^X-Majordomo:" "^X-Url:" "^X-Sender:"
125 "^MBOX-Line" "^Priority:" "^X400-[-A-Za-z]+:"
126 "^Status:" "^X-Gnus-Mail-Source:" "^Cancel-Lock:"
127 "^X-FTN" "^X-EXP32-SerialNo:" "^Encoding:" "^Importance:"
128 "^Autoforwarded:" "^Original-Encoded-Information-Types:" "^X-Ya-Pop3:"
129 "^X-Face-Version:" "^X-Vms-To:" "^X-ML-NAME:" "^X-ML-COUNT:"
130 "^Mailing-List:" "^X-finfo:" "^X-md5sum:" "^X-md5sum-Origin:"
131 "^X-Sun-Charset:" "^X-Accept-Language:" "^X-Envelope-Sender:"
132 "^List-[A-Za-z]+:" "^X-Listprocessor-Version:"
133 "^X-Received:" "^X-Distribute:" "^X-Sequence:" "^X-Juno-Line-Breaks:"
134 "^X-Notes-Item:" "^X-MS-TNEF-Correlator:" "^x-uunet-gateway:"
135 "^X-Received:" "^Content-length:" "X-precedence:"
136 "^X-Authenticated-User:" "^X-Comment" "^X-Report:" "^X-Abuse-Info:"
137 "^X-HTTP-Proxy:" "^X-Mydeja-Info:" "^X-Copyright" "^X-No-Markup:"
138 "^X-Abuse-Info:" "^X-From_:" "^X-Accept-Language:" "^Errors-To:"
139 "^X-BeenThere:" "^X-Mailman-Version:" "^List-Help:" "^List-Post:"
140 "^List-Subscribe:" "^List-Id:" "^List-Unsubscribe:" "^List-Archive:"
141 "^X-Content-length:" "^X-Posting-Agent:" "^Original-Received:"
142 "^X-Request-PGP:" "^X-Fingerprint:" "^X-WRIEnvto:" "^X-WRIEnvfrom:"
143 "^X-Virus-Scanned:" "^X-Delivery-Agent:" "^Posted-Date:" "^X-Gateway:"
144 "^X-Local-Origin:" "^X-Local-Destination:" "^X-UserInfo1:"
146 "*All headers that start with this regexp will be hidden.
147 This variable can also be a list of regexps of headers to be ignored.
148 If `gnus-visible-headers' is non-nil, this variable will be ignored."
149 :type '(choice :custom-show nil
152 :group 'gnus-article-hiding)
154 (defcustom gnus-visible-headers
155 "^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:"
156 "*All headers that do not match this regexp will be hidden.
157 This variable can also be a list of regexp of headers to remain visible.
158 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
159 :type '(repeat :value-to-internal (lambda (widget value)
160 (custom-split-regexp-maybe value))
161 :match (lambda (widget value)
163 (widget-editable-list-match widget value)))
165 :group 'gnus-article-hiding)
167 (defcustom gnus-sorted-header-list
168 '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:"
169 "^Followup-To:" "^To:" "^Cc:" "^Date:" "^Organization:")
170 "*This variable is a list of regular expressions.
171 If it is non-nil, headers that match the regular expressions will
172 be placed first in the article buffer in the sequence specified by
174 :type '(repeat regexp)
175 :group 'gnus-article-hiding)
177 (defcustom gnus-boring-article-headers '(empty followup-to reply-to)
178 "Headers that are only to be displayed if they have interesting data.
179 Possible values in this list are:
181 'empty Headers with no content.
182 'newsgroups Newsgroup identical to Gnus group.
183 'to-address To identical to To-address.
184 'followup-to Followup-to identical to Newsgroups.
185 'reply-to Reply-to identical to From.
186 'date Date less than four days old.
187 'long-to To and/or Cc longer than 1024 characters.
188 'many-to Multiple To and/or Cc."
189 :type '(set (const :tag "Headers with no content." empty)
190 (const :tag "Newsgroups identical to Gnus group." newsgroups)
191 (const :tag "To identical to To-address." to-address)
192 (const :tag "Followup-to identical to Newsgroups." followup-to)
193 (const :tag "Reply-to identical to From." reply-to)
194 (const :tag "Date less than four days old." date)
195 (const :tag "To and/or Cc longer than 1024 characters." long-to)
196 (const :tag "Multiple To and/or Cc headers." many-to))
197 :group 'gnus-article-hiding)
199 (defcustom gnus-signature-separator '("^-- $" "^-- *$")
200 "Regexp matching signature separator.
201 This can also be a list of regexps. In that case, it will be checked
202 from head to tail looking for a separator. Searches will be done from
203 the end of the buffer."
204 :type '(repeat string)
205 :group 'gnus-article-signature)
207 (defcustom gnus-signature-limit nil
208 "Provide a limit to what is considered a signature.
209 If it is a number, no signature may not be longer (in characters) than
210 that number. If it is a floating point number, no signature may be
211 longer (in lines) than that number. If it is a function, the function
212 will be called without any parameters, and if it returns nil, there is
213 no signature in the buffer. If it is a string, it will be used as a
214 regexp. If it matches, the text in question is not a signature."
215 :type '(choice (integer :value 200)
217 (function :value fun)
218 (regexp :value ".*"))
219 :group 'gnus-article-signature)
221 (defcustom gnus-hidden-properties '(invisible t intangible t)
222 "Property list to use for hiding text."
224 :group 'gnus-article-hiding)
226 ;; Fixme: This isn't the right thing for mixed graphical and and
227 ;; non-graphical frames in a session.
228 (defcustom gnus-article-x-face-command
229 (if (featurep 'xemacs)
230 (if (or (gnus-image-type-available-p 'xface)
231 (gnus-image-type-available-p 'pbm))
232 'gnus-display-x-face-in-from
233 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | ee -")
234 (if (gnus-image-type-available-p 'pbm)
235 'gnus-display-x-face-in-from
236 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
238 "*String or function to be executed to display an X-Face header.
239 If it is a string, the command will be executed in a sub-shell
240 asynchronously. The compressed face will be piped to this command."
241 :type `(choice string
242 (function-item gnus-display-x-face-in-from)
245 :group 'gnus-article-washing)
247 (defcustom gnus-article-x-face-too-ugly nil
248 "Regexp matching posters whose face shouldn't be shown automatically."
249 :type '(choice regexp (const nil))
250 :group 'gnus-article-washing)
252 (defcustom gnus-article-banner-alist nil
253 "Banner alist for stripping.
255 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
257 :type '(repeat (cons symbol regexp))
258 :group 'gnus-article-washing)
260 (gnus-define-group-parameter
263 "Alist of regexps (to match group names) and banner."
264 :variable-group gnus-article-washing
266 '(choice :tag "Banner"
268 (const :tag "Remove signature" signature)
269 (symbol :tag "Item in `gnus-article-banner-alist'" none)
271 (const :tag "None" nil))
273 "If non-nil, specify how to remove `banners' from articles.
275 Symbol `signature' means to remove signatures delimited by
276 `gnus-signature-separator'. Any other symbol is used to look up a
277 regular expression to match the banner in `gnus-article-banner-alist'.
278 A string is used as a regular expression to match the banner
281 (defcustom gnus-emphasis-alist
283 "\\(\\s-\\|^\\|\\=\\|[-\"]\\|\\s(\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\\(\\([-,.;:!?\"]\\|\\s)\\)+\\s-\\|[?!.]\\s-\\|\\s)\\|\\s-\\)")
288 ("_/" "/_" underline-italic)
289 ("_\\*" "\\*_" underline-bold)
290 ("\\*/" "/\\*" bold-italic)
291 ("_\\*/" "/\\*_" underline-bold-italic))))
295 (format format (car spec) (cadr spec))
296 2 3 (intern (format "gnus-emphasis-%s" (nth 2 spec)))))
298 ("\\(\\s-\\|^\\)\\(_\\(\\(\\w\\|_[^_]\\)+\\)_\\)\\(\\s-\\|[?!.,;]\\)"
299 2 3 gnus-emphasis-underline)))
300 "*Alist that says how to fontify certain phrases.
301 Each item looks like this:
303 (\"_\\\\(\\\\w+\\\\)_\" 0 1 'underline)
305 The first element is a regular expression to be matched. The second
306 is a number that says what regular expression grouping used to find
307 the entire emphasized word. The third is a number that says what
308 regexp grouping should be displayed and highlighted. The fourth
309 is the face used for highlighting."
310 :type '(repeat (list :value ("" 0 0 default)
312 (integer :tag "Match group")
313 (integer :tag "Emphasize group")
315 :group 'gnus-article-emphasis)
317 (defcustom gnus-emphasize-whitespace-regexp "^[ \t]+\\|[ \t]*\n"
318 "A regexp to describe whitespace which should not be emphasized.
319 Typical values are \"^[ \\t]+\\\\|[ \\t]*\\n\" and \"[ \\t]+\\\\|[ \\t]*\\n\".
320 The former avoids underlining of leading and trailing whitespace,
321 and the latter avoids underlining any whitespace at all."
323 :group 'gnus-article-emphasis
326 (defface gnus-emphasis-bold '((t (:bold t)))
327 "Face used for displaying strong emphasized text (*word*)."
328 :group 'gnus-article-emphasis)
330 (defface gnus-emphasis-italic '((t (:italic t)))
331 "Face used for displaying italic emphasized text (/word/)."
332 :group 'gnus-article-emphasis)
334 (defface gnus-emphasis-underline '((t (:underline t)))
335 "Face used for displaying underlined emphasized text (_word_)."
336 :group 'gnus-article-emphasis)
338 (defface gnus-emphasis-underline-bold '((t (:bold t :underline t)))
339 "Face used for displaying underlined bold emphasized text (_*word*_)."
340 :group 'gnus-article-emphasis)
342 (defface gnus-emphasis-underline-italic '((t (:italic t :underline t)))
343 "Face used for displaying underlined italic emphasized text (_/word/_)."
344 :group 'gnus-article-emphasis)
346 (defface gnus-emphasis-bold-italic '((t (:bold t :italic t)))
347 "Face used for displaying bold italic emphasized text (/*word*/)."
348 :group 'gnus-article-emphasis)
350 (defface gnus-emphasis-underline-bold-italic
351 '((t (:bold t :italic t :underline t)))
352 "Face used for displaying underlined bold italic emphasized text.
353 Esample: (_/*word*/_)."
354 :group 'gnus-article-emphasis)
356 (defface gnus-emphasis-highlight-words
357 '((t (:background "black" :foreground "yellow")))
358 "Face used for displaying highlighted words."
359 :group 'gnus-article-emphasis)
361 (defcustom gnus-article-time-format "%a, %b %d %Y %T %Z"
362 "Format for display of Date headers in article bodies.
363 See `format-time-string' for the possible values.
365 The variable can also be function, which should return a complete Date
366 header. The function is called with one argument, the time, which can
367 be fed to `format-time-string'."
368 :type '(choice string symbol)
369 :link '(custom-manual "(gnus)Article Date")
370 :group 'gnus-article-washing)
373 (autoload 'mail-extract-address-components "mail-extr"))
375 (defcustom gnus-save-all-headers t
376 "*If non-nil, don't remove any headers before saving."
377 :group 'gnus-article-saving
380 (defcustom gnus-prompt-before-saving 'always
381 "*This variable says how much prompting is to be done when saving articles.
382 If it is nil, no prompting will be done, and the articles will be
383 saved to the default files. If this variable is `always', each and
384 every article that is saved will be preceded by a prompt, even when
385 saving large batches of articles. If this variable is neither nil not
386 `always', there the user will be prompted once for a file name for
387 each invocation of the saving commands."
388 :group 'gnus-article-saving
389 :type '(choice (item always)
390 (item :tag "never" nil)
391 (sexp :tag "once" :format "%t\n" :value t)))
393 (defcustom gnus-saved-headers gnus-visible-headers
394 "Headers to keep if `gnus-save-all-headers' is nil.
395 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
396 If that variable is nil, however, all headers that match this regexp
397 will be kept while the rest will be deleted before saving."
398 :group 'gnus-article-saving
401 (defcustom gnus-default-article-saver 'gnus-summary-save-in-rmail
402 "A function to save articles in your favourite format.
403 The function must be interactively callable (in other words, it must
404 be an Emacs command).
406 Gnus provides the following functions:
408 * gnus-summary-save-in-rmail (Rmail format)
409 * gnus-summary-save-in-mail (Unix mail format)
410 * gnus-summary-save-in-folder (MH folder)
411 * gnus-summary-save-in-file (article format)
412 * gnus-summary-save-body-in-file (article body)
413 * gnus-summary-save-in-vm (use VM's folder format)
414 * gnus-summary-write-to-file (article format -- overwrite)."
415 :group 'gnus-article-saving
416 :type '(radio (function-item gnus-summary-save-in-rmail)
417 (function-item gnus-summary-save-in-mail)
418 (function-item gnus-summary-save-in-folder)
419 (function-item gnus-summary-save-in-file)
420 (function-item gnus-summary-save-body-in-file)
421 (function-item gnus-summary-save-in-vm)
422 (function-item gnus-summary-write-to-file)))
424 (defcustom gnus-rmail-save-name 'gnus-plain-save-name
425 "A function generating a file name to save articles in Rmail format.
426 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
427 :group 'gnus-article-saving
430 (defcustom gnus-mail-save-name 'gnus-plain-save-name
431 "A function generating a file name to save articles in Unix mail format.
432 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
433 :group 'gnus-article-saving
436 (defcustom gnus-folder-save-name 'gnus-folder-save-name
437 "A function generating a file name to save articles in MH folder.
438 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
439 :group 'gnus-article-saving
442 (defcustom gnus-file-save-name 'gnus-numeric-save-name
443 "A function generating a file name to save articles in article format.
444 The function is called with NEWSGROUP, HEADERS, and optional
446 :group 'gnus-article-saving
449 (defcustom gnus-split-methods
450 '((gnus-article-archive-name)
451 (gnus-article-nndoc-name))
452 "*Variable used to suggest where articles are to be saved.
453 For instance, if you would like to save articles related to Gnus in
454 the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
455 you could set this variable to something like:
457 '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
458 (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
460 This variable is an alist where the where the key is the match and the
461 value is a list of possible files to save in if the match is non-nil.
463 If the match is a string, it is used as a regexp match on the
464 article. If the match is a symbol, that symbol will be funcalled
465 from the buffer of the article to be saved with the newsgroup as the
466 parameter. If it is a list, it will be evaled in the same buffer.
468 If this form or function returns a string, this string will be used as
469 a possible file name; and if it returns a non-nil list, that list will
470 be used as possible file names."
471 :group 'gnus-article-saving
472 :type '(repeat (choice (list :value (fun) function)
473 (cons :value ("" "") regexp (repeat string))
476 (defcustom gnus-page-delimiter "^\^L"
477 "*Regexp describing what to use as article page delimiters.
478 The default value is \"^\^L\", which is a form linefeed at the
479 beginning of a line."
481 :group 'gnus-article-various)
483 (defcustom gnus-article-mode-line-format "Gnus: %g [%w] %S%m"
484 "*The format specification for the article mode line.
485 See `gnus-summary-mode-line-format' for a closer description.
487 The following additional specs are available:
489 %w The article washing status.
490 %m The number of MIME parts in the article."
492 :group 'gnus-article-various)
494 (defcustom gnus-article-mode-hook nil
495 "*A hook for Gnus article mode."
497 :group 'gnus-article-various)
499 (when (featurep 'xemacs)
500 ;; Extracted from gnus-xmas-define in order to preserve user settings
501 (when (fboundp 'turn-off-scroll-in-place)
502 (add-hook 'gnus-article-mode-hook 'turn-off-scroll-in-place))
503 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
504 (add-hook 'gnus-article-mode-hook 'gnus-xmas-article-menu-add))
506 (defcustom gnus-article-menu-hook nil
507 "*Hook run after the creation of the article mode menu."
509 :group 'gnus-article-various)
511 (defcustom gnus-article-prepare-hook nil
512 "*A hook called after an article has been prepared in the article buffer."
514 :group 'gnus-article-various)
516 (defcustom gnus-article-hide-pgp-hook nil
517 "*A hook called after successfully hiding a PGP signature."
519 :group 'gnus-article-various)
521 (defcustom gnus-article-button-face 'bold
522 "Face used for highlighting buttons in the article buffer.
524 An article button is a piece of text that you can activate by pressing
525 `RET' or `mouse-2' above it."
527 :group 'gnus-article-buttons)
529 (defcustom gnus-article-mouse-face 'highlight
530 "Face used for mouse highlighting in the article buffer.
532 Article buttons will be displayed in this face when the cursor is
535 :group 'gnus-article-buttons)
537 (defcustom gnus-signature-face 'gnus-signature-face
538 "Face used for highlighting a signature in the article buffer.
539 Obsolete; use the face `gnus-signature-face' for customizations instead."
541 :group 'gnus-article-highlight
542 :group 'gnus-article-signature)
544 (defface gnus-signature-face
547 "Face used for highlighting a signature in the article buffer."
548 :group 'gnus-article-highlight
549 :group 'gnus-article-signature)
551 (defface gnus-header-from-face
554 (:foreground "spring green"))
557 (:foreground "red3"))
560 "Face used for displaying from headers."
561 :group 'gnus-article-headers
562 :group 'gnus-article-highlight)
564 (defface gnus-header-subject-face
567 (:foreground "SeaGreen3"))
570 (:foreground "red4"))
572 (:bold t :italic t)))
573 "Face used for displaying subject headers."
574 :group 'gnus-article-headers
575 :group 'gnus-article-highlight)
577 (defface gnus-header-newsgroups-face
580 (:foreground "yellow" :italic t))
583 (:foreground "MidnightBlue" :italic t))
586 "Face used for displaying newsgroups headers."
587 :group 'gnus-article-headers
588 :group 'gnus-article-highlight)
590 (defface gnus-header-name-face
593 (:foreground "SeaGreen"))
596 (:foreground "maroon"))
599 "Face used for displaying header names."
600 :group 'gnus-article-headers
601 :group 'gnus-article-highlight)
603 (defface gnus-header-content-face
606 (:foreground "forest green" :italic t))
609 (:foreground "indianred4" :italic t))
611 (:italic t))) "Face used for displaying header content."
612 :group 'gnus-article-headers
613 :group 'gnus-article-highlight)
615 (defcustom gnus-header-face-alist
616 '(("From" nil gnus-header-from-face)
617 ("Subject" nil gnus-header-subject-face)
618 ("Newsgroups:.*," nil gnus-header-newsgroups-face)
619 ("" gnus-header-name-face gnus-header-content-face))
620 "*Controls highlighting of article header.
622 An alist of the form (HEADER NAME CONTENT).
624 HEADER is a regular expression which should match the name of an
625 header header and NAME and CONTENT are either face names or nil.
627 The name of each header field will be displayed using the face
628 specified by the first element in the list where HEADER match the
629 header name and NAME is non-nil. Similarly, the content will be
630 displayed by the first non-nil matching CONTENT face."
631 :group 'gnus-article-headers
632 :group 'gnus-article-highlight
633 :type '(repeat (list (regexp :tag "Header")
635 (item :tag "skip" nil)
636 (face :value default))
637 (choice :tag "Content"
638 (item :tag "skip" nil)
639 (face :value default)))))
641 (defcustom gnus-article-decode-hook
642 '(article-decode-charset article-decode-encoded-words
643 article-decode-group-name)
644 "*Hook run to decode charsets in articles."
645 :group 'gnus-article-headers
648 (defcustom gnus-display-mime-function 'gnus-display-mime
649 "Function to display MIME articles."
650 :group 'gnus-article-mime
653 (defvar gnus-decode-header-function 'mail-decode-encoded-word-region
654 "Function used to decode headers.")
656 (defvar gnus-article-dumbquotes-map
675 "Table for MS-to-Latin1 translation.")
677 (defcustom gnus-ignored-mime-types nil
678 "List of MIME types that should be ignored by Gnus."
680 :group 'gnus-article-mime
681 :type '(repeat regexp))
683 (defcustom gnus-unbuttonized-mime-types '(".*/.*")
684 "List of MIME types that should not be given buttons when rendered inline.
685 See also `gnus-buttonized-mime-types' which may override this variable."
687 :group 'gnus-article-mime
688 :type '(repeat regexp))
690 (defcustom gnus-buttonized-mime-types nil
691 "List of MIME types that should be given buttons when rendered inline.
692 If set, this variable overrides `gnus-unbuttonized-mime-types'.
693 To see e.g. security buttons you could set this to
694 `(\"multipart/signed\")'."
696 :group 'gnus-article-mime
697 :type '(repeat regexp))
699 (defcustom gnus-body-boundary-delimiter "_"
700 "String used to delimit header and body.
701 This variable is used by `gnus-article-treat-body-boundary' which can
702 be controlled by `gnus-treat-body-boundary'."
703 :group 'gnus-article-various
704 :type '(choice (item :tag "None" :value nil)
707 (defcustom gnus-picon-databases '("/usr/lib/picon" "/usr/local/faces")
708 "*Defines the location of the faces database.
709 For information on obtaining this database of pretty pictures, please
710 see http://www.cs.indiana.edu/picons/ftp/index.html"
714 (defun gnus-picons-installed-p ()
715 "Say whether picons are installed on your machine."
716 (let ((installed nil))
717 (dolist (database gnus-picon-databases)
718 (when (file-exists-p database)
722 (defcustom gnus-article-mime-part-function nil
723 "Function called with a MIME handle as the argument.
724 This is meant for people who want to do something automatic based
725 on parts -- for instance, adding Vcard info to a database."
726 :group 'gnus-article-mime
729 (defcustom gnus-mime-multipart-functions nil
730 "An alist of MIME types to functions to display them."
732 :group 'gnus-article-mime
735 (defcustom gnus-article-date-lapsed-new-header nil
736 "Whether the X-Sent and Date headers can coexist.
737 When using `gnus-treat-date-lapsed', the \"X-Sent:\" header will
738 either replace the old \"Date:\" header (if this variable is nil), or
739 be added below it (otherwise)."
741 :group 'gnus-article-headers
744 (defcustom gnus-article-mime-match-handle-function 'undisplayed-alternative
745 "Function called with a MIME handle as the argument.
746 This is meant for people who want to view first matched part.
747 For `undisplayed-alternative' (default), the first undisplayed
748 part or alternative part is used. For `undisplayed', the first
749 undisplayed part is used. For a function, the first part which
750 the function return `t' is used. For `nil', the first part is
753 :group 'gnus-article-mime
755 (item :tag "first" :value nil)
756 (item :tag "undisplayed" :value undisplayed)
757 (item :tag "undisplayed or alternative"
758 :value undisplayed-alternative)
761 (defcustom gnus-mime-action-alist
762 '(("save to file" . gnus-mime-save-part)
763 ("save and strip" . gnus-mime-save-part-and-strip)
764 ("display as text" . gnus-mime-inline-part)
765 ("view the part" . gnus-mime-view-part)
766 ("pipe to command" . gnus-mime-pipe-part)
767 ("toggle display" . gnus-article-press-button)
768 ("toggle display" . gnus-article-view-part-as-charset)
769 ("view as type" . gnus-mime-view-part-as-type)
770 ("internalize type" . gnus-mime-internalize-part)
771 ("externalize type" . gnus-mime-externalize-part))
772 "An alist of actions that run on the MIME attachment."
773 :group 'gnus-article-mime
774 :type '(repeat (cons (string :tag "name")
777 (defcustom gnus-mime-action-alist
778 '(("save to file" . gnus-mime-save-part)
779 ("display as text" . gnus-mime-inline-part)
780 ("view the part" . gnus-mime-view-part)
781 ("pipe to command" . gnus-mime-pipe-part)
782 ("toggle display" . gnus-article-press-button)
783 ("view as type" . gnus-mime-view-part-as-type)
784 ("internalize type" . gnus-mime-internalize-part)
785 ("externalize type" . gnus-mime-externalize-part))
786 "An alist of actions that run on the MIME attachment."
788 :group 'gnus-article-mime
789 :type '(repeat (cons (string :tag "name")
793 ;;; The treatment variables
796 (defvar gnus-part-display-hook nil
797 "Hook called on parts that are to receive treatment.")
799 (defvar gnus-article-treat-custom
800 '(choice (const :tag "Off" nil)
802 (const :tag "Header" head)
803 (const :tag "Last" last)
804 (integer :tag "Less")
805 (repeat :tag "Groups" regexp)
806 (sexp :tag "Predicate")))
808 (defvar gnus-article-treat-head-custom
809 '(choice (const :tag "Off" nil)
810 (const :tag "Header" head)))
812 (defvar gnus-article-treat-types '("text/plain")
815 (defvar gnus-inhibit-treatment nil
816 "Whether to inhibit treatment.")
818 (defcustom gnus-treat-highlight-signature '(or last (typep "text/x-vcard"))
819 "Highlight the signature.
820 Valid values are nil, t, `head', `last', an integer or a predicate.
821 See Info node `(gnus)Customizing Articles'."
822 :group 'gnus-article-treat
823 :type gnus-article-treat-custom)
824 (put 'gnus-treat-highlight-signature 'highlight t)
826 (defcustom gnus-treat-buttonize 100000
828 Valid values are nil, t, `head', `last', an integer or a predicate.
829 See Info node `(gnus)Customizing Articles'."
830 :group 'gnus-article-treat
831 :type gnus-article-treat-custom)
832 (put 'gnus-treat-buttonize 'highlight t)
834 (defcustom gnus-treat-buttonize-head 'head
835 "Add buttons to the head.
836 Valid values are nil, t, `head', `last', an integer or a predicate.
837 See Info node `(gnus)Customizing Articles' for details."
838 :group 'gnus-article-treat
839 :type gnus-article-treat-head-custom)
840 (put 'gnus-treat-buttonize-head 'highlight t)
842 (defcustom gnus-treat-emphasize
843 (and (or window-system
845 (>= (string-to-number emacs-version) 21))
848 Valid values are nil, t, `head', `last', an integer or a predicate.
849 See Info node `(gnus)Customizing Articles' for details."
850 :group 'gnus-article-treat
851 :type gnus-article-treat-custom)
852 (put 'gnus-treat-emphasize 'highlight t)
854 (defcustom gnus-treat-strip-cr nil
855 "Remove carriage returns.
856 Valid values are nil, t, `head', `last', an integer or a predicate.
857 See Info node `(gnus)Customizing Articles' for details."
858 :group 'gnus-article-treat
859 :type gnus-article-treat-custom)
861 (defcustom gnus-treat-unsplit-urls nil
862 "Remove newlines from within URLs.
863 Valid values are nil, t, `head', `last', an integer or a predicate.
864 See Info node `(gnus)Customizing Articles' for details."
865 :group 'gnus-article-treat
866 :type gnus-article-treat-custom)
868 (defcustom gnus-treat-leading-whitespace nil
869 "Remove leading whitespace in headers.
870 Valid values are nil, t, `head', `last', an integer or a predicate.
871 See Info node `(gnus)Customizing Articles' for details."
872 :group 'gnus-article-treat
873 :type gnus-article-treat-custom)
875 (defcustom gnus-treat-hide-headers 'head
877 Valid values are nil, t, `head', `last', an integer or a predicate.
878 See Info node `(gnus)Customizing Articles' for details."
879 :group 'gnus-article-treat
880 :type gnus-article-treat-head-custom)
882 (defcustom gnus-treat-hide-boring-headers nil
883 "Hide boring headers.
884 Valid values are nil, t, `head', `last', an integer or a predicate.
885 See Info node `(gnus)Customizing Articles' for details."
886 :group 'gnus-article-treat
887 :type gnus-article-treat-head-custom)
889 (defcustom gnus-treat-hide-signature nil
891 Valid values are nil, t, `head', `last', an integer or a predicate.
892 See Info node `(gnus)Customizing Articles' for details."
893 :group 'gnus-article-treat
894 :type gnus-article-treat-custom)
896 (defcustom gnus-treat-fill-article nil
898 Valid values are nil, t, `head', `last', an integer or a predicate.
899 See Info node `(gnus)Customizing Articles' for details."
900 :group 'gnus-article-treat
901 :type gnus-article-treat-custom)
903 (defcustom gnus-treat-hide-citation nil
905 Valid values are nil, t, `head', `last', an integer or a predicate.
906 See Info node `(gnus)Customizing Articles' for details."
907 :group 'gnus-article-treat
908 :type gnus-article-treat-custom)
910 (defcustom gnus-treat-hide-citation-maybe nil
912 Valid values are nil, t, `head', `last', an integer or a predicate.
913 See Info node `(gnus)Customizing Articles' for details."
914 :group 'gnus-article-treat
915 :type gnus-article-treat-custom)
917 (defcustom gnus-treat-strip-list-identifiers 'head
918 "Strip list identifiers from `gnus-list-identifiers`.
919 Valid values are nil, t, `head', `last', an integer or a predicate.
920 See Info node `(gnus)Customizing Articles' for details."
922 :group 'gnus-article-treat
923 :type gnus-article-treat-custom)
925 (defcustom gnus-treat-strip-pgp t
926 "Strip PGP signatures.
927 Valid values are nil, t, `head', `last', an integer or a predicate.
928 See Info node `(gnus)Customizing Articles' for details."
929 :group 'gnus-article-treat
930 :type gnus-article-treat-custom)
932 (defcustom gnus-treat-strip-pem nil
933 "Strip PEM signatures.
934 Valid values are nil, t, `head', `last', an integer or a predicate.
935 See Info node `(gnus)Customizing Articles' for details."
936 :group 'gnus-article-treat
937 :type gnus-article-treat-custom)
939 (defcustom gnus-treat-strip-banner t
940 "Strip banners from articles.
941 The banner to be stripped is specified in the `banner' group parameter.
942 Valid values are nil, t, `head', `last', an integer or a predicate.
943 See Info node `(gnus)Customizing Articles' for details."
944 :group 'gnus-article-treat
945 :type gnus-article-treat-custom)
947 (defcustom gnus-treat-highlight-headers 'head
948 "Highlight the headers.
949 Valid values are nil, t, `head', `last', an integer or a predicate.
950 See Info node `(gnus)Customizing Articles' for details."
951 :group 'gnus-article-treat
952 :type gnus-article-treat-head-custom)
953 (put 'gnus-treat-highlight-headers 'highlight t)
955 (defcustom gnus-treat-highlight-citation t
956 "Highlight cited text.
957 Valid values are nil, t, `head', `last', an integer or a predicate.
958 See Info node `(gnus)Customizing Articles' for details."
959 :group 'gnus-article-treat
960 :type gnus-article-treat-custom)
961 (put 'gnus-treat-highlight-citation 'highlight t)
963 (defcustom gnus-treat-date-ut nil
964 "Display the Date in UT (GMT).
965 Valid values are nil, t, `head', `last', an integer or a predicate.
966 See Info node `(gnus)Customizing Articles' for details."
967 :group 'gnus-article-treat
968 :type gnus-article-treat-head-custom)
970 (defcustom gnus-treat-date-local nil
971 "Display the Date in the local timezone.
972 Valid values are nil, t, `head', `last', an integer or a predicate.
973 See Info node `(gnus)Customizing Articles' for details."
974 :group 'gnus-article-treat
975 :type gnus-article-treat-head-custom)
977 (defcustom gnus-treat-date-english nil
978 "Display the Date in a format that can be read aloud in English.
979 Valid values are nil, t, `head', `last', an integer or a predicate.
980 See Info node `(gnus)Customizing Articles' for details."
981 :group 'gnus-article-treat
982 :type gnus-article-treat-head-custom)
984 (defcustom gnus-treat-date-lapsed nil
985 "Display the Date header in a way that says how much time has elapsed.
986 Valid values are nil, t, `head', `last', an integer or a predicate.
987 See Info node `(gnus)Customizing Articles' for details."
988 :group 'gnus-article-treat
989 :type gnus-article-treat-head-custom)
991 (defcustom gnus-treat-date-original nil
992 "Display the date in the original timezone.
993 Valid values are nil, t, `head', `last', an integer or a predicate.
994 See Info node `(gnus)Customizing Articles' for details."
995 :group 'gnus-article-treat
996 :type gnus-article-treat-head-custom)
998 (defcustom gnus-treat-date-iso8601 nil
999 "Display the date in the ISO8601 format.
1000 Valid values are nil, t, `head', `last', an integer or a predicate.
1001 See Info node `(gnus)Customizing Articles' for details."
1003 :group 'gnus-article-treat
1004 :type gnus-article-treat-head-custom)
1006 (defcustom gnus-treat-date-user-defined nil
1007 "Display the date in a user-defined format.
1008 The format is defined by the `gnus-article-time-format' variable.
1009 Valid values are nil, t, `head', `last', an integer or a predicate.
1010 See Info node `(gnus)Customizing Articles' for details."
1011 :group 'gnus-article-treat
1012 :type gnus-article-treat-head-custom)
1014 (defcustom gnus-treat-strip-headers-in-body t
1015 "Strip the X-No-Archive header line from the beginning of the body.
1016 Valid values are nil, t, `head', `last', an integer or a predicate.
1017 See Info node `(gnus)Customizing Articles' for details."
1019 :group 'gnus-article-treat
1020 :type gnus-article-treat-custom)
1022 (defcustom gnus-treat-strip-trailing-blank-lines nil
1023 "Strip trailing blank lines.
1024 Valid values are nil, t, `head', `last', an integer or a predicate.
1025 See Info node `(gnus)Customizing Articles' for details."
1026 :group 'gnus-article-treat
1027 :type gnus-article-treat-custom)
1029 (defcustom gnus-treat-strip-leading-blank-lines nil
1030 "Strip leading blank lines.
1031 Valid values are nil, t, `head', `last', an integer or a predicate.
1032 See Info node `(gnus)Customizing Articles' for details."
1033 :group 'gnus-article-treat
1034 :type gnus-article-treat-custom)
1036 (defcustom gnus-treat-strip-multiple-blank-lines nil
1037 "Strip multiple blank lines.
1038 Valid values are nil, t, `head', `last', an integer or a predicate.
1039 See Info node `(gnus)Customizing Articles' for details."
1040 :group 'gnus-article-treat
1041 :type gnus-article-treat-custom)
1043 (defcustom gnus-treat-unfold-headers 'head
1044 "Unfold folded header lines.
1045 Valid values are nil, t, `head', `last', an integer or a predicate.
1046 See Info node `(gnus)Customizing Articles' for details."
1047 :group 'gnus-article-treat
1048 :type gnus-article-treat-custom)
1050 (defcustom gnus-treat-fold-headers nil
1052 Valid values are nil, t, `head', `last', an integer or a predicate.
1053 See Info node `(gnus)Customizing Articles' for details."
1054 :group 'gnus-article-treat
1055 :type gnus-article-treat-custom)
1057 (defcustom gnus-treat-fold-newsgroups 'head
1058 "Fold the Newsgroups and Followup-To headers.
1059 Valid values are nil, t, `head', `last', an integer or a predicate.
1060 See Info node `(gnus)Customizing Articles' for details."
1061 :group 'gnus-article-treat
1062 :type gnus-article-treat-custom)
1064 (defcustom gnus-treat-overstrike t
1065 "Treat overstrike highlighting.
1066 Valid values are nil, t, `head', `last', an integer or a predicate.
1067 See Info node `(gnus)Customizing Articles' for details."
1068 :group 'gnus-article-treat
1069 :type gnus-article-treat-custom)
1070 (put 'gnus-treat-overstrike 'highlight t)
1072 (defcustom gnus-treat-display-xface
1073 (and (or (and (fboundp 'image-type-available-p)
1074 (image-type-available-p 'xbm)
1075 (string-match "^0x" (shell-command-to-string "uncompface")))
1076 (and (featurep 'xemacs)
1079 "Display X-Face headers.
1080 Valid values are nil, t, `head', `last', an integer or a predicate.
1081 See Info node `(gnus)Customizing Articles' and Info node
1082 `(gnus)X-Face' for details."
1083 :group 'gnus-article-treat
1085 :type gnus-article-treat-head-custom)
1086 (put 'gnus-treat-display-xface 'highlight t)
1088 (defcustom gnus-treat-display-grey-xface
1089 (and (string-match "^0x" (shell-command-to-string "uncompface"))
1091 "Display grey X-Face headers.
1092 Valid values are nil, t."
1093 :group 'gnus-article-treat
1096 (put 'gnus-treat-display-grey-xface 'highlight t)
1098 (defcustom gnus-treat-display-smileys
1099 (if (or (and (featurep 'xemacs)
1101 (and (fboundp 'image-type-available-p)
1102 (image-type-available-p 'pbm)))
1105 Valid values are nil, t, `head', `last', an integer or a predicate.
1106 See Info node `(gnus)Customizing Articles' and Info node
1107 `(gnus)Smileys' for details."
1108 :group 'gnus-article-treat
1110 :type gnus-article-treat-custom)
1111 (put 'gnus-treat-display-smileys 'highlight t)
1113 (defcustom gnus-treat-from-picon
1114 (if (and (gnus-image-type-available-p 'xpm)
1115 (gnus-picons-installed-p))
1117 "Display picons in the From header.
1118 Valid values are nil, t, `head', `last', an integer or a predicate.
1119 See Info node `(gnus)Customizing Articles' and Info node
1120 `(gnus)Picons' for details."
1121 :group 'gnus-article-treat
1122 :type gnus-article-treat-head-custom)
1123 (put 'gnus-treat-from-picon 'highlight t)
1125 (defcustom gnus-treat-mail-picon
1126 (if (and (gnus-image-type-available-p 'xpm)
1127 (gnus-picons-installed-p))
1129 "Display picons in To and Cc headers.
1130 Valid values are nil, t, `head', `last', an integer or a predicate.
1131 See Info node `(gnus)Customizing Articles' and Info node
1132 `(gnus)Picons' for details."
1133 :group 'gnus-article-treat
1134 :type gnus-article-treat-head-custom)
1135 (put 'gnus-treat-mail-picon 'highlight t)
1137 (defcustom gnus-treat-newsgroups-picon
1138 (if (and (gnus-image-type-available-p 'xpm)
1139 (gnus-picons-installed-p))
1141 "Display picons in the Newsgroups and Followup-To headers.
1142 Valid values are nil, t, `head', `last', an integer or a predicate.
1143 See Info node `(gnus)Customizing Articles' and Info node
1144 `(gnus)Picons' for details."
1145 :group 'gnus-article-treat
1146 :type gnus-article-treat-head-custom)
1147 (put 'gnus-treat-newsgroups-picon 'highlight t)
1149 (defcustom gnus-treat-body-boundary
1150 (if (or gnus-treat-newsgroups-picon
1151 gnus-treat-mail-picon
1152 gnus-treat-from-picon)
1154 "Draw a boundary at the end of the headers.
1155 Valid values are nil, t, `head', `last', an integer or a predicate.
1156 See Info node `(gnus)Customizing Articles' for details."
1158 :group 'gnus-article-treat
1159 :type gnus-article-treat-custom)
1161 (defcustom gnus-treat-capitalize-sentences nil
1162 "Capitalize sentence-starting words.
1163 Valid values are nil, t, `head', `last', an integer or a predicate.
1164 See Info node `(gnus)Customizing Articles' for details."
1166 :group 'gnus-article-treat
1167 :type gnus-article-treat-custom)
1169 (defcustom gnus-treat-fill-long-lines nil
1171 Valid values are nil, t, `head', `last', an integer or a predicate.
1172 See Info node `(gnus)Customizing Articles' for details."
1173 :group 'gnus-article-treat
1174 :type gnus-article-treat-custom)
1176 (defcustom gnus-treat-play-sounds nil
1178 Valid values are nil, t, `head', `last', an integer or a predicate.
1179 See Info node `(gnus)Customizing Articles' for details."
1181 :group 'gnus-article-treat
1182 :type gnus-article-treat-custom)
1184 (defcustom gnus-treat-translate nil
1185 "Translate articles from one language to another.
1186 Valid values are nil, t, `head', `last', an integer or a predicate.
1187 See Info node `(gnus)Customizing Articles' for details."
1189 :group 'gnus-article-treat
1190 :type gnus-article-treat-custom)
1192 (defcustom gnus-treat-x-pgp-sig nil
1194 To automatically treat X-PGP-Sig, set it to head.
1195 Valid values are nil, t, `head', `last', an integer or a predicate.
1196 See Info node `(gnus)Customizing Articles' for details."
1197 :group 'gnus-article-treat
1198 :group 'mime-security
1199 :type gnus-article-treat-custom)
1201 (defvar gnus-article-encrypt-protocol-alist
1202 '(("PGP" . mml2015-self-encrypt)))
1204 ;; Set to nil if more than one protocol added to
1205 ;; gnus-article-encrypt-protocol-alist.
1206 (defcustom gnus-article-encrypt-protocol "PGP"
1207 "The protocol used for encrypt articles.
1208 It is a string, such as \"PGP\". If nil, ask user."
1210 :group 'mime-security)
1212 (defcustom gnus-article-wash-function
1213 (cond ((locate-library "w3")
1214 'gnus-article-wash-html-with-w3)
1215 ((locate-library "w3m")
1216 'gnus-article-wash-html-with-w3m))
1217 "Function used for converting HTML into text."
1218 :type '(radio (function-item gnus-article-wash-html-with-w3)
1219 (function-item gnus-article-wash-html-with-w3m))
1220 :group 'gnus-article)
1222 ;;; Internal variables
1224 (defvar gnus-english-month-names
1225 '("January" "February" "March" "April" "May" "June" "July" "August"
1226 "September" "October" "November" "December"))
1228 (defvar article-goto-body-goes-to-point-min-p nil)
1229 (defvar gnus-article-wash-types nil)
1230 (defvar gnus-article-emphasis-alist nil)
1231 (defvar gnus-article-image-alist nil)
1233 (defvar gnus-article-mime-handle-alist-1 nil)
1234 (defvar gnus-treatment-function-alist
1235 '((gnus-treat-x-pgp-sig gnus-article-verify-x-pgp-sig)
1236 (gnus-treat-strip-banner gnus-article-strip-banner)
1237 (gnus-treat-strip-headers-in-body gnus-article-strip-headers-in-body)
1238 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1239 (gnus-treat-buttonize gnus-article-add-buttons)
1240 (gnus-treat-fill-article gnus-article-fill-cited-article)
1241 (gnus-treat-fill-long-lines gnus-article-fill-long-lines)
1242 (gnus-treat-strip-cr gnus-article-remove-cr)
1243 (gnus-treat-unsplit-urls gnus-article-unsplit-urls)
1244 (gnus-treat-date-ut gnus-article-date-ut)
1245 (gnus-treat-date-local gnus-article-date-local)
1246 (gnus-treat-date-english gnus-article-date-english)
1247 (gnus-treat-date-lapsed gnus-article-date-lapsed)
1248 (gnus-treat-date-original gnus-article-date-original)
1249 (gnus-treat-date-user-defined gnus-article-date-user)
1250 (gnus-treat-date-iso8601 gnus-article-date-iso8601)
1251 (gnus-treat-display-xface gnus-article-display-x-face)
1252 (gnus-treat-hide-headers gnus-article-maybe-hide-headers)
1253 (gnus-treat-hide-boring-headers gnus-article-hide-boring-headers)
1254 (gnus-treat-hide-signature gnus-article-hide-signature)
1255 (gnus-treat-strip-list-identifiers gnus-article-hide-list-identifiers)
1256 (gnus-treat-leading-whitespace gnus-article-remove-leading-whitespace)
1257 (gnus-treat-strip-pgp gnus-article-hide-pgp)
1258 (gnus-treat-strip-pem gnus-article-hide-pem)
1259 (gnus-treat-from-picon gnus-treat-from-picon)
1260 (gnus-treat-mail-picon gnus-treat-mail-picon)
1261 (gnus-treat-newsgroups-picon gnus-treat-newsgroups-picon)
1262 (gnus-treat-highlight-headers gnus-article-highlight-headers)
1263 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1264 (gnus-treat-strip-trailing-blank-lines
1265 gnus-article-remove-trailing-blank-lines)
1266 (gnus-treat-strip-leading-blank-lines
1267 gnus-article-strip-leading-blank-lines)
1268 (gnus-treat-strip-multiple-blank-lines
1269 gnus-article-strip-multiple-blank-lines)
1270 (gnus-treat-overstrike gnus-article-treat-overstrike)
1271 (gnus-treat-unfold-headers gnus-article-treat-unfold-headers)
1272 (gnus-treat-fold-headers gnus-article-treat-fold-headers)
1273 (gnus-treat-fold-newsgroups gnus-article-treat-fold-newsgroups)
1274 (gnus-treat-buttonize-head gnus-article-add-buttons-to-head)
1275 (gnus-treat-display-smileys gnus-treat-smiley)
1276 (gnus-treat-capitalize-sentences gnus-article-capitalize-sentences)
1277 (gnus-treat-emphasize gnus-article-emphasize)
1278 (gnus-treat-hide-citation gnus-article-hide-citation)
1279 (gnus-treat-hide-citation-maybe gnus-article-hide-citation-maybe)
1280 (gnus-treat-highlight-citation gnus-article-highlight-citation)
1281 (gnus-treat-body-boundary gnus-article-treat-body-boundary)
1282 (gnus-treat-play-sounds gnus-earcon-display)))
1284 (defvar gnus-article-mime-handle-alist nil)
1285 (defvar article-lapsed-timer nil)
1286 (defvar gnus-article-current-summary nil)
1288 (defvar gnus-article-mode-syntax-table
1289 (let ((table (copy-syntax-table text-mode-syntax-table)))
1290 ;; This causes the citation match run O(2^n).
1291 ;; (modify-syntax-entry ?- "w" table)
1292 (modify-syntax-entry ?> ")" table)
1293 (modify-syntax-entry ?< "(" table)
1295 "Syntax table used in article mode buffers.
1296 Initialized from `text-mode-syntax-table.")
1298 (defvar gnus-save-article-buffer nil)
1300 (defvar gnus-article-mode-line-format-alist
1301 (nconc '((?w (gnus-article-wash-status) ?s)
1302 (?m (gnus-article-mime-part-status) ?s))
1303 gnus-summary-mode-line-format-alist))
1305 (defvar gnus-number-of-articles-to-be-saved nil)
1307 (defvar gnus-inhibit-hiding nil)
1309 ;;; Macros for dealing with the article buffer.
1311 (defmacro gnus-with-article-headers (&rest forms)
1313 (set-buffer gnus-article-buffer)
1315 (let ((buffer-read-only nil)
1316 (inhibit-point-motion-hooks t)
1317 (case-fold-search t))
1318 (article-narrow-to-head)
1321 (put 'gnus-with-article-headers 'lisp-indent-function 0)
1322 (put 'gnus-with-article-headers 'edebug-form-spec '(body))
1324 (defmacro gnus-with-article-buffer (&rest forms)
1326 (set-buffer gnus-article-buffer)
1327 (let ((buffer-read-only nil))
1330 (put 'gnus-with-article-buffer 'lisp-indent-function 0)
1331 (put 'gnus-with-article-buffer 'edebug-form-spec '(body))
1333 (defun gnus-article-goto-header (header)
1334 "Go to HEADER, which is a regular expression."
1335 (re-search-forward (concat "^\\(" header "\\):") nil t))
1337 (defsubst gnus-article-hide-text (b e props)
1338 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1339 (gnus-add-text-properties-when 'article-type nil b e props)
1340 (when (memq 'intangible props)
1342 (max (1- b) (point-min))
1343 b 'intangible (cddr (memq 'intangible props)))))
1345 (defsubst gnus-article-unhide-text (b e)
1346 "Remove hidden text properties from region between B and E."
1347 (remove-text-properties b e gnus-hidden-properties)
1348 (when (memq 'intangible gnus-hidden-properties)
1349 (put-text-property (max (1- b) (point-min))
1350 b 'intangible nil)))
1352 (defun gnus-article-hide-text-type (b e type)
1353 "Hide text of TYPE between B and E."
1354 (gnus-add-wash-type type)
1355 (gnus-article-hide-text
1356 b e (cons 'article-type (cons type gnus-hidden-properties))))
1358 (defun gnus-article-unhide-text-type (b e type)
1359 "Unhide text of TYPE between B and E."
1360 (gnus-delete-wash-type type)
1361 (remove-text-properties
1362 b e (cons 'article-type (cons type gnus-hidden-properties)))
1363 (when (memq 'intangible gnus-hidden-properties)
1364 (put-text-property (max (1- b) (point-min))
1365 b 'intangible nil)))
1367 (defun gnus-article-hide-text-of-type (type)
1368 "Hide text of TYPE in the current buffer."
1370 (let ((b (point-min))
1372 (while (setq b (text-property-any b e 'article-type type))
1373 (add-text-properties b (incf b) gnus-hidden-properties)))))
1375 (defun gnus-article-delete-text-of-type (type)
1376 "Delete text of TYPE in the current buffer."
1378 (let ((b (point-min)))
1379 (while (setq b (text-property-any b (point-max) 'article-type type))
1381 b (or (text-property-not-all b (point-max) 'article-type type)
1384 (defun gnus-article-delete-invisible-text ()
1385 "Delete all invisible text in the current buffer."
1387 (let ((b (point-min)))
1388 (while (setq b (text-property-any b (point-max) 'invisible t))
1390 b (or (text-property-not-all b (point-max) 'invisible t)
1393 (defun gnus-article-text-type-exists-p (type)
1394 "Say whether any text of type TYPE exists in the buffer."
1395 (text-property-any (point-min) (point-max) 'article-type type))
1397 (defsubst gnus-article-header-rank ()
1398 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1399 (let ((list gnus-sorted-header-list)
1402 (when (looking-at (car list))
1404 (setq list (cdr list))
1408 (defun article-hide-headers (&optional arg delete)
1409 "Hide unwanted headers and possibly sort them as well."
1411 ;; This function might be inhibited.
1412 (unless gnus-inhibit-hiding
1415 (let ((buffer-read-only nil)
1416 (case-fold-search t)
1417 (max (1+ (length gnus-sorted-header-list)))
1418 (ignored (when (not gnus-visible-headers)
1419 (cond ((stringp gnus-ignored-headers)
1420 gnus-ignored-headers)
1421 ((listp gnus-ignored-headers)
1422 (mapconcat 'identity gnus-ignored-headers
1425 (cond ((stringp gnus-visible-headers)
1426 gnus-visible-headers)
1427 ((and gnus-visible-headers
1428 (listp gnus-visible-headers))
1429 (mapconcat 'identity gnus-visible-headers "\\|"))))
1430 (inhibit-point-motion-hooks t)
1432 ;; First we narrow to just the headers.
1433 (article-narrow-to-head)
1434 ;; Hide any "From " lines at the beginning of (mail) articles.
1435 (while (looking-at "From ")
1438 (delete-region (point-min) (point)))
1439 ;; Then treat the rest of the header lines.
1440 ;; Then we use the two regular expressions
1441 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1442 ;; select which header lines is to remain visible in the
1444 (while (re-search-forward "^[^ \t:]*:" nil t)
1446 ;; Mark the rank of the header.
1448 (point) (1+ (point)) 'message-rank
1449 (if (or (and visible (looking-at visible))
1451 (not (looking-at ignored))))
1452 (gnus-article-header-rank)
1455 (message-sort-headers-1)
1456 (when (setq beg (text-property-any
1457 (point-min) (point-max) 'message-rank (+ 2 max)))
1458 ;; We delete the unwanted headers.
1459 (gnus-add-wash-type 'headers)
1460 (add-text-properties (point-min) (+ 5 (point-min))
1461 '(article-type headers dummy-invisible t))
1462 (delete-region beg (point-max))))))))
1464 (defun article-hide-boring-headers (&optional arg)
1465 "Toggle hiding of headers that aren't very interesting.
1466 If given a negative prefix, always show; if given a positive prefix,
1468 (interactive (gnus-article-hidden-arg))
1469 (when (and (not (gnus-article-check-hidden-text 'boring-headers arg))
1470 (not gnus-show-all-headers))
1473 (let ((buffer-read-only nil)
1474 (list gnus-boring-article-headers)
1475 (inhibit-point-motion-hooks t)
1477 (article-narrow-to-head)
1479 (setq elem (pop list))
1480 (goto-char (point-min))
1482 ;; Hide empty headers.
1484 (while (re-search-forward "^[^: \t]+:[ \t]*\n[^ \t]" nil t)
1486 (gnus-article-hide-text-type
1487 (progn (beginning-of-line) (point))
1490 (if (re-search-forward "^[^ \t]" nil t)
1494 ;; Hide boring Newsgroups header.
1495 ((eq elem 'newsgroups)
1496 (when (gnus-string-equal
1497 (gnus-fetch-field "newsgroups")
1498 (gnus-group-real-name
1499 (if (boundp 'gnus-newsgroup-name)
1502 (gnus-article-hide-header "newsgroups")))
1503 ((eq elem 'to-address)
1504 (let ((to (message-fetch-field "to"))
1506 (gnus-parameter-to-address
1507 (if (boundp 'gnus-newsgroup-name)
1508 gnus-newsgroup-name ""))))
1509 (when (and to to-address
1512 ;; only one address in To
1513 (nth 1 (mail-extract-address-components to))
1515 (gnus-article-hide-header "to"))))
1516 ((eq elem 'followup-to)
1517 (when (gnus-string-equal
1518 (message-fetch-field "followup-to")
1519 (message-fetch-field "newsgroups"))
1520 (gnus-article-hide-header "followup-to")))
1521 ((eq elem 'reply-to)
1522 (let ((from (message-fetch-field "from"))
1523 (reply-to (message-fetch-field "reply-to")))
1528 (nth 1 (mail-extract-address-components from))
1529 (nth 1 (mail-extract-address-components reply-to)))))
1530 (gnus-article-hide-header "reply-to"))))
1532 (let ((date (message-fetch-field "date")))
1534 (< (days-between (current-time-string) date)
1536 (gnus-article-hide-header "date"))))
1538 (let ((to (message-fetch-field "to"))
1539 (cc (message-fetch-field "cc")))
1540 (when (> (length to) 1024)
1541 (gnus-article-hide-header "to"))
1542 (when (> (length cc) 1024)
1543 (gnus-article-hide-header "cc"))))
1547 (goto-char (point-min))
1548 (while (re-search-forward "^to:" nil t)
1549 (setq to-count (1+ to-count)))
1550 (when (> to-count 1)
1551 (while (> to-count 0)
1552 (goto-char (point-min))
1554 (re-search-forward "^to:" nil nil to-count)
1556 (narrow-to-region (point) (point-max))
1557 (gnus-article-hide-header "to"))
1558 (setq to-count (1- to-count))))
1559 (goto-char (point-min))
1560 (while (re-search-forward "^cc:" nil t)
1561 (setq cc-count (1+ cc-count)))
1562 (when (> cc-count 1)
1563 (while (> cc-count 0)
1564 (goto-char (point-min))
1566 (re-search-forward "^cc:" nil nil cc-count)
1568 (narrow-to-region (point) (point-max))
1569 (gnus-article-hide-header "cc"))
1570 (setq cc-count (1- cc-count)))))))))))))
1572 (defun gnus-article-hide-header (header)
1574 (goto-char (point-min))
1575 (when (re-search-forward (concat "^" header ":") nil t)
1576 (gnus-article-hide-text-type
1577 (progn (beginning-of-line) (point))
1580 (if (re-search-forward "^[^ \t]" nil t)
1585 (defvar gnus-article-normalized-header-length 40
1586 "Length of normalized headers.")
1588 (defun article-normalize-headers ()
1589 "Make all header lines 40 characters long."
1591 (let ((buffer-read-only nil)
1595 (article-narrow-to-head)
1598 ((< (setq column (- (gnus-point-at-eol) (point)))
1599 gnus-article-normalized-header-length)
1601 (insert (make-string
1602 (- gnus-article-normalized-header-length column)
1604 ((> column gnus-article-normalized-header-length)
1605 (gnus-put-text-property
1607 (forward-char gnus-article-normalized-header-length)
1614 (forward-line 1))))))
1616 (defun article-treat-dumbquotes ()
1617 "Translate M****s*** sm*rtq**t*s into proper text.
1618 Note that this function guesses whether a character is a sm*rtq**t* or
1619 not, so it should only be used interactively.
1621 Sm*rtq**t*s are M****s***'s unilateral extension to the character map
1622 in an attempt to provide more quoting characters. If you see
1623 something like \\222 or \\264 where you're expecting some kind of
1624 apostrophe or quotation mark, then try this wash."
1626 (article-translate-strings gnus-article-dumbquotes-map))
1628 (defun article-translate-characters (from to)
1629 "Translate all characters in the body of the article according to FROM and TO.
1630 FROM is a string of characters to translate from; to is a string of
1631 characters to translate to."
1633 (when (article-goto-body)
1634 (let ((buffer-read-only nil)
1635 (x (make-string 225 ?x))
1637 (while (< (incf i) (length x))
1640 (while (< i (length from))
1641 (aset x (aref from i) (aref to i))
1643 (translate-region (point) (point-max) x)))))
1645 (defun article-translate-strings (map)
1646 "Translate all string in the body of the article according to MAP.
1647 MAP is an alist where the elements are on the form (\"from\" \"to\")."
1649 (when (article-goto-body)
1650 (let ((buffer-read-only nil)
1652 (while (setq elem (pop map))
1654 (while (search-forward (car elem) nil t)
1655 (replace-match (cadr elem)))))))))
1657 (defun article-treat-overstrike ()
1658 "Translate overstrikes into bold text."
1661 (when (article-goto-body)
1662 (let ((buffer-read-only nil))
1663 (while (search-forward "\b" nil t)
1664 (let ((next (char-after))
1665 (previous (char-after (- (point) 2))))
1666 ;; We do the boldification/underlining by hiding the
1667 ;; overstrikes and putting the proper text property
1671 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
1672 (put-text-property (point) (1+ (point)) 'face 'bold))
1674 (gnus-article-hide-text-type
1675 (1- (point)) (1+ (point)) 'overstrike)
1677 (- (point) 2) (1- (point)) 'face 'underline))
1679 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
1681 (point) (1+ (point)) 'face 'underline)))))))))
1683 (defun gnus-article-treat-unfold-headers ()
1684 "Unfold folded message headers.
1685 Only the headers that fit into the current window width will be
1688 (gnus-with-article-headers
1692 (mail-header-narrow-to-field)
1693 (let ((header (buffer-substring (point-min) (point-max))))
1696 (goto-char (point-min))
1697 (while (re-search-forward "\n[\t ]" nil t)
1698 (replace-match " " t t)))
1699 (setq length (- (point-max) (point-min) 1)))
1700 (when (< length (window-width))
1701 (while (re-search-forward "\n[\t ]" nil t)
1702 (replace-match " " t t)))
1703 (goto-char (point-max)))))))
1705 (defun gnus-article-treat-fold-headers ()
1706 "Fold message headers."
1708 (gnus-with-article-headers
1711 (mail-header-narrow-to-field)
1712 (mail-header-fold-field)
1713 (goto-char (point-max))))))
1715 (defun gnus-treat-smiley ()
1716 "Toggle display of textual emoticons (\"smileys\") as small graphical icons."
1718 (gnus-with-article-buffer
1719 (if (memq 'smiley gnus-article-wash-types)
1720 (gnus-delete-images 'smiley)
1722 (let ((images (smiley-region (point) (point-max))))
1724 (gnus-add-wash-type 'smiley)
1725 (dolist (image images)
1726 (gnus-add-image 'smiley image)))))))
1728 (defun gnus-article-remove-images ()
1729 "Remove all images from the article buffer."
1731 (gnus-with-article-buffer
1732 (dolist (elem gnus-article-image-alist)
1733 (gnus-delete-images (car elem)))))
1735 (defun gnus-article-treat-fold-newsgroups ()
1736 "Unfold folded message headers.
1737 Only the headers that fit into the current window width will be
1740 (gnus-with-article-headers
1741 (while (gnus-article-goto-header "newsgroups\\|followup-to")
1743 (mail-header-narrow-to-field)
1744 (while (re-search-forward ", *" nil t)
1745 (replace-match ", " t t))
1746 (mail-header-fold-field)
1747 (goto-char (point-max))))))
1749 (defun gnus-article-treat-body-boundary ()
1750 "Place a boundary line at the end of the headers."
1752 (when (and gnus-body-boundary-delimiter
1753 (> (length gnus-body-boundary-delimiter) 0))
1754 (gnus-with-article-headers
1755 (goto-char (point-max))
1756 (let ((start (point)))
1757 (insert "X-Boundary: ")
1758 (gnus-add-text-properties start (point) '(invisible t intangible t))
1760 (while (>= (1- (window-width)) (length str))
1761 (setq str (concat str gnus-body-boundary-delimiter)))
1762 (substring str 0 (1- (window-width))))
1764 (gnus-add-text-properties start (point) '(gnus-decoration 'header))))))
1766 (defun article-fill-long-lines ()
1767 "Fill lines that are wider than the window width."
1770 (let ((buffer-read-only nil)
1771 (width (window-width (get-buffer-window (current-buffer)))))
1774 (let ((adaptive-fill-mode nil)) ;Why? -sm
1777 (when (>= (current-column) (min fill-column width))
1778 (narrow-to-region (point) (gnus-point-at-bol))
1779 (fill-paragraph nil)
1780 (goto-char (point-max))
1782 (forward-line 1)))))))
1784 (defun article-capitalize-sentences ()
1785 "Capitalize the first word in each sentence."
1788 (let ((buffer-read-only nil)
1789 (paragraph-start "^[\n\^L]"))
1793 (forward-sentence)))))
1795 (defun article-remove-cr ()
1796 "Remove trailing CRs and then translate remaining CRs into LFs."
1799 (let ((buffer-read-only nil))
1800 (goto-char (point-min))
1801 (while (re-search-forward "\r+$" nil t)
1802 (replace-match "" t t))
1803 (goto-char (point-min))
1804 (while (search-forward "\r" nil t)
1805 (replace-match "\n" t t)))))
1807 (defun article-remove-trailing-blank-lines ()
1808 "Remove all trailing blank lines from the article."
1811 (let ((buffer-read-only nil))
1812 (goto-char (point-max))
1816 (while (and (not (bobp))
1817 (looking-at "^[ \t]*$")
1818 (not (gnus-annotation-in-region-p
1819 (point) (gnus-point-at-eol))))
1824 (defun article-display-x-face (&optional force)
1825 "Look for an X-Face header and display it if present."
1826 (interactive (list 'force))
1827 (let ((wash-face-p buffer-read-only)) ;; When type `W f'
1828 (gnus-with-article-headers
1829 ;; Delete the old process, if any.
1830 (when (process-status "article-x-face")
1831 (delete-process "article-x-face"))
1832 (if (memq 'xface gnus-article-wash-types)
1833 ;; We have already displayed X-Faces, so we remove them
1835 (gnus-delete-images 'xface)
1837 (let (x-faces from face grey)
1839 (when (and wash-face-p
1841 (goto-char (point-min))
1842 (not (re-search-forward
1843 "^X-Face\\(-[0-9]+\\)?:[\t ]*" nil t)))
1844 (gnus-buffer-live-p gnus-original-article-buffer))
1845 ;; If type `W f', use gnus-original-article-buffer,
1846 ;; otherwise use the current buffer because displaying
1847 ;; RFC822 parts calls this function too.
1848 (set-buffer gnus-original-article-buffer))
1850 (mail-narrow-to-head)
1852 (if gnus-treat-display-grey-xface
1853 "x-face\\(-[0-9]+\\)?"
1855 (while (gnus-article-goto-header regexp)
1856 (when (match-beginning 2)
1858 (push (mail-header-field-value) x-faces)))
1859 (setq from (message-fetch-field "from"))))
1861 (let ((xpm (gnus-convert-gray-x-face-to-xpm x-faces))
1864 (setq image (gnus-create-image xpm 'xpm t))
1865 (gnus-article-goto-header "from")
1867 (insert "From: [no `from' set]\n")
1869 (gnus-add-wash-type 'xface)
1870 (gnus-add-image 'xface image)
1871 (gnus-put-image image)))
1872 ;; Sending multiple EOFs to xv doesn't work, so we only do a
1873 ;; single external face.
1874 (when (stringp gnus-article-x-face-command)
1875 (setq x-faces (list (car x-faces))))
1876 (while (and (setq face (pop x-faces))
1877 gnus-article-x-face-command
1879 ;; Check whether this face is censored.
1880 (not gnus-article-x-face-too-ugly)
1881 (and gnus-article-x-face-too-ugly from
1882 (not (string-match gnus-article-x-face-too-ugly
1884 ;; We display the face.
1885 (if (symbolp gnus-article-x-face-command)
1886 ;; The command is a lisp function, so we call it.
1887 (if (gnus-functionp gnus-article-x-face-command)
1888 (funcall gnus-article-x-face-command face)
1889 (error "%s is not a function" gnus-article-x-face-command))
1890 ;; The command is a string, so we interpret the command
1891 ;; as a, well, command, and fork it off.
1892 (let ((process-connection-type nil))
1893 (process-kill-without-query
1895 "article-x-face" nil shell-file-name shell-command-switch
1896 gnus-article-x-face-command))
1899 (process-send-region "article-x-face"
1900 (point-min) (point-max)))
1901 (process-send-eof "article-x-face"))))))))))
1903 (defun article-decode-mime-words ()
1904 "Decode all MIME-encoded words in the article."
1907 (set-buffer gnus-article-buffer)
1908 (let ((inhibit-point-motion-hooks t)
1910 (mail-parse-charset gnus-newsgroup-charset)
1911 (mail-parse-ignored-charsets
1912 (save-excursion (set-buffer gnus-summary-buffer)
1913 gnus-newsgroup-ignored-charsets)))
1914 (mail-decode-encoded-word-region (point-min) (point-max)))))
1916 (defun article-decode-charset (&optional prompt)
1917 "Decode charset-encoded text in the article.
1918 If PROMPT (the prefix), prompt for a coding system to use."
1920 (let ((inhibit-point-motion-hooks t) (case-fold-search t)
1922 (mail-parse-charset gnus-newsgroup-charset)
1923 (mail-parse-ignored-charsets
1924 (save-excursion (condition-case nil
1925 (set-buffer gnus-summary-buffer)
1927 gnus-newsgroup-ignored-charsets))
1928 ct cte ctl charset format)
1931 (article-narrow-to-head)
1932 (setq ct (message-fetch-field "Content-Type" t)
1933 cte (message-fetch-field "Content-Transfer-Encoding" t)
1934 ctl (and ct (ignore-errors
1935 (mail-header-parse-content-type ct)))
1938 (mm-read-coding-system "Charset to decode: "))
1940 (mail-content-type-get ctl 'charset)))
1941 format (and ctl (mail-content-type-get ctl 'format)))
1943 (setq cte (mail-header-strip cte)))
1944 (if (and ctl (not (string-match "/" (car ctl))))
1946 (goto-char (point-max)))
1949 (narrow-to-region (point) (point-max))
1950 (when (and (eq mail-parse-charset 'gnus-decoded)
1951 (eq (mm-body-7-or-8) '8bit))
1952 ;; The text code could have been decoded.
1953 (setq charset mail-parse-charset))
1954 (when (and (or (not ctl)
1955 (equal (car ctl) "text/plain"))
1956 (not format)) ;; article with format will decode later.
1958 charset (and cte (intern (downcase
1959 (gnus-strip-whitespace cte))))
1962 (defun article-decode-encoded-words ()
1963 "Remove encoded-word encoding from headers."
1964 (let ((inhibit-point-motion-hooks t)
1965 (mail-parse-charset gnus-newsgroup-charset)
1966 (mail-parse-ignored-charsets
1967 (save-excursion (condition-case nil
1968 (set-buffer gnus-summary-buffer)
1970 gnus-newsgroup-ignored-charsets))
1973 (article-narrow-to-head)
1974 (funcall gnus-decode-header-function (point-min) (point-max)))))
1976 (defun article-decode-group-name ()
1977 "Decode group names in `Newsgroups:'."
1978 (let ((inhibit-point-motion-hooks t)
1980 (method (gnus-find-method-for-group gnus-newsgroup-name)))
1981 (when (and (or gnus-group-name-charset-method-alist
1982 gnus-group-name-charset-group-alist)
1983 (gnus-buffer-live-p gnus-original-article-buffer))
1984 (when (nnmail-fetch-field "Newsgroups")
1985 (nnheader-replace-header "Newsgroups"
1986 (gnus-decode-newsgroups
1987 (with-current-buffer
1988 gnus-original-article-buffer
1989 (nnmail-fetch-field "Newsgroups"))
1990 gnus-newsgroup-name method)))
1991 (when (nnmail-fetch-field "Followup-To")
1992 (nnheader-replace-header "Followup-To"
1993 (gnus-decode-newsgroups
1994 (with-current-buffer
1995 gnus-original-article-buffer
1996 (nnmail-fetch-field "Followup-To"))
1997 gnus-newsgroup-name method))))))
1999 (defun article-de-quoted-unreadable (&optional force read-charset)
2000 "Translate a quoted-printable-encoded article.
2001 If FORCE, decode the article whether it is marked as quoted-printable
2003 If READ-CHARSET, ask for a coding system."
2004 (interactive (list 'force current-prefix-arg))
2006 (let ((buffer-read-only nil) type charset)
2007 (if (gnus-buffer-live-p gnus-original-article-buffer)
2008 (with-current-buffer gnus-original-article-buffer
2010 (gnus-fetch-field "content-transfer-encoding"))
2011 (let* ((ct (gnus-fetch-field "content-type"))
2014 (mail-header-parse-content-type ct)))))
2015 (setq charset (and ctl
2016 (mail-content-type-get ctl 'charset)))
2017 (if (stringp charset)
2018 (setq charset (intern (downcase charset)))))))
2020 (setq charset (mm-read-coding-system "Charset: " charset)))
2022 (setq charset gnus-newsgroup-charset))
2024 (and type (let ((case-fold-search t))
2025 (string-match "quoted-printable" type))))
2027 (quoted-printable-decode-region
2028 (point) (point-max) (mm-charset-to-coding-system charset))))))
2030 (defun article-de-base64-unreadable (&optional force read-charset)
2031 "Translate a base64 article.
2032 If FORCE, decode the article whether it is marked as base64 not.
2033 If READ-CHARSET, ask for a coding system."
2034 (interactive (list 'force current-prefix-arg))
2036 (let ((buffer-read-only nil) type charset)
2037 (if (gnus-buffer-live-p gnus-original-article-buffer)
2038 (with-current-buffer gnus-original-article-buffer
2040 (gnus-fetch-field "content-transfer-encoding"))
2041 (let* ((ct (gnus-fetch-field "content-type"))
2044 (mail-header-parse-content-type ct)))))
2045 (setq charset (and ctl
2046 (mail-content-type-get ctl 'charset)))
2047 (if (stringp charset)
2048 (setq charset (intern (downcase charset)))))))
2050 (setq charset (mm-read-coding-system "Charset: " charset)))
2052 (setq charset gnus-newsgroup-charset))
2054 (and type (let ((case-fold-search t))
2055 (string-match "base64" type))))
2058 (narrow-to-region (point) (point-max))
2059 (base64-decode-region (point-min) (point-max))
2060 (mm-decode-coding-region
2061 (point-min) (point-max) (mm-charset-to-coding-system charset)))))))
2066 (defun article-decode-HZ ()
2067 "Translate a HZ-encoded article."
2071 (let ((buffer-read-only nil))
2072 (rfc1843-decode-region (point-min) (point-max)))))
2074 (defun article-unsplit-urls ()
2075 "Remove the newlines that some other mailers insert into URLs."
2078 (let ((buffer-read-only nil))
2079 (goto-char (point-min))
2080 (while (re-search-forward
2081 "^\\(\\(https?\\|ftp\\)://\\S-+\\)\n\\(\\S-+\\)" nil t)
2082 (replace-match "\\1\\3" t)))))
2084 (defun article-wash-html (&optional read-charset)
2085 "Format an html article.
2086 If READ-CHARSET, ask for a coding system."
2089 (let ((buffer-read-only nil)
2091 (if (gnus-buffer-live-p gnus-original-article-buffer)
2092 (with-current-buffer gnus-original-article-buffer
2093 (let* ((ct (gnus-fetch-field "content-type"))
2096 (mail-header-parse-content-type ct)))))
2097 (setq charset (and ctl
2098 (mail-content-type-get ctl 'charset)))
2099 (if (stringp charset)
2100 (setq charset (intern (downcase charset)))))))
2102 (setq charset (mm-read-coding-system "Charset: " charset)))
2104 (setq charset gnus-newsgroup-charset))
2106 (save-window-excursion
2108 (narrow-to-region (point) (point-max))
2109 (funcall gnus-article-wash-function))))))
2111 (defun gnus-article-wash-html-with-w3 ()
2112 "Wash the current buffer with w3."
2114 (let ((w3-strict-width (window-width))
2115 (url-standalone-mode t)
2116 (url-gateway-unplugged t)
2117 (w3-honor-stylesheets nil)
2118 (w3-delay-image-loads t))
2120 (w3-region (point-min) (point-max))
2123 (defun gnus-article-wash-html-with-w3m ()
2124 "Wash the current buffer with emacs-w3m."
2127 (narrow-to-region (point) (point-max))
2128 (let ((w3m-safe-url-regexp (if mm-inline-text-html-with-images
2131 (w3m-display-inline-images mm-inline-text-html-with-images)
2132 w3m-force-redisplay)
2133 (w3m-region (point-min) (point-max)))
2134 (when mm-inline-text-html-with-w3m-keymap
2135 (add-text-properties
2136 (point-min) (point-max)
2137 (append '(mm-inline-text-html-with-w3m t)
2138 (gnus-local-map-property mm-w3m-mode-map))))))
2140 (defun article-hide-list-identifiers ()
2141 "Remove list identifies from the Subject header.
2142 The `gnus-list-identifiers' variable specifies what to do."
2144 (let ((inhibit-point-motion-hooks t)
2145 (regexp (if (consp gnus-list-identifiers)
2146 (mapconcat 'identity gnus-list-identifiers " *\\|")
2147 gnus-list-identifiers))
2152 (article-narrow-to-head)
2153 (goto-char (point-min))
2154 (while (re-search-forward
2155 (concat "^Subject: +\\(R[Ee]: +\\)*\\(" regexp " *\\)")
2157 (delete-region (match-beginning 2) (match-end 0))
2158 (beginning-of-line))
2159 (when (re-search-forward
2160 "^Subject: +\\(\\(R[Ee]: +\\)+\\)R[Ee]: +" nil t)
2161 (delete-region (match-beginning 1) (match-end 1))))))))
2163 (defun article-hide-pgp ()
2164 "Remove any PGP headers and signatures in the current article."
2168 (let ((inhibit-point-motion-hooks t)
2169 buffer-read-only beg end)
2171 ;; Hide the "header".
2172 (when (re-search-forward "^-----BEGIN PGP SIGNED MESSAGE-----\n" nil t)
2173 (gnus-add-wash-type 'pgp)
2174 (delete-region (match-beginning 0) (match-end 0))
2175 ;; Remove armor headers (rfc2440 6.2)
2176 (delete-region (point) (or (re-search-forward "^[ \t]*\n" nil t)
2179 ;; Hide the actual signature.
2180 (and (search-forward "\n-----BEGIN PGP SIGNATURE-----\n" nil t)
2181 (setq end (1+ (match-beginning 0)))
2184 (if (search-forward "\n-----END PGP SIGNATURE-----\n" nil t)
2186 ;; Perhaps we shouldn't hide to the end of the buffer
2187 ;; if there is no end to the signature?
2189 ;; Hide "- " PGP quotation markers.
2191 (narrow-to-region beg end)
2192 (goto-char (point-min))
2193 (while (re-search-forward "^- " nil t)
2195 (match-beginning 0) (match-end 0)))
2197 (gnus-run-hooks 'gnus-article-hide-pgp-hook))))))
2199 (defun article-hide-pem (&optional arg)
2200 "Toggle hiding of any PEM headers and signatures in the current article.
2201 If given a negative prefix, always show; if given a positive prefix,
2203 (interactive (gnus-article-hidden-arg))
2204 (unless (gnus-article-check-hidden-text 'pem arg)
2206 (let (buffer-read-only end)
2207 (goto-char (point-min))
2208 ;; Hide the horrendously ugly "header".
2209 (when (and (search-forward
2210 "\n-----BEGIN PRIVACY-ENHANCED MESSAGE-----\n"
2212 (setq end (1+ (match-beginning 0))))
2213 (gnus-add-wash-type 'pem)
2214 (gnus-article-hide-text-type
2216 (if (search-forward "\n\n" nil t)
2220 ;; Hide the trailer as well
2221 (when (search-forward "\n-----END PRIVACY-ENHANCED MESSAGE-----\n"
2223 (gnus-article-hide-text-type
2224 (match-beginning 0) (match-end 0) 'pem)))))))
2226 (defun article-strip-banner ()
2227 "Strip the banner specified by the `banner' group parameter."
2231 (let ((inhibit-point-motion-hooks t)
2232 (banner (gnus-parameter-banner gnus-newsgroup-name))
2233 (gnus-signature-limit nil)
2234 buffer-read-only beg end)
2238 ((eq banner 'signature)
2239 (when (gnus-article-narrow-to-signature)
2242 (delete-region (point) (point-max))))
2244 (if (setq banner (cdr (assq banner gnus-article-banner-alist)))
2245 (while (re-search-forward banner nil t)
2246 (delete-region (match-beginning 0) (match-end 0)))))
2248 (while (re-search-forward banner nil t)
2249 (delete-region (match-beginning 0) (match-end 0))))))))))
2251 (defun article-babel ()
2252 "Translate article using an online translation service."
2256 (set-buffer gnus-article-buffer)
2257 (when (article-goto-body)
2258 (let* ((buffer-read-only nil)
2261 (orig (buffer-substring start end))
2262 (trans (babel-as-string orig)))
2264 (narrow-to-region start end)
2265 (delete-region start end)
2268 (defun article-hide-signature (&optional arg)
2269 "Hide the signature in the current article.
2270 If given a negative prefix, always show; if given a positive prefix,
2272 (interactive (gnus-article-hidden-arg))
2273 (unless (gnus-article-check-hidden-text 'signature arg)
2276 (let ((buffer-read-only nil))
2277 (when (gnus-article-narrow-to-signature)
2278 (gnus-article-hide-text-type
2279 (point-min) (point-max) 'signature))))))
2280 (gnus-set-mode-line 'article))
2282 (defun article-strip-headers-in-body ()
2283 "Strip offensive headers from bodies."
2287 (let ((case-fold-search t))
2288 (when (looking-at "x-no-archive:")
2289 (gnus-delete-line)))))
2291 (defun article-strip-leading-blank-lines ()
2292 "Remove all blank lines from the beginning of the article."
2295 (let ((inhibit-point-motion-hooks t)
2297 (when (article-goto-body)
2298 (while (and (not (eobp))
2299 (looking-at "[ \t]*$"))
2300 (gnus-delete-line))))))
2302 (defun article-narrow-to-head ()
2303 "Narrow the buffer to the head of the message.
2304 Point is left at the beginning of the narrowed-to region."
2306 (goto-char (point-min))
2307 (if (search-forward "\n\n" nil 1)
2310 (goto-char (point-min)))
2312 (defun article-goto-body ()
2313 "Place point at the start of the body."
2314 (goto-char (point-min))
2316 ;; This variable is only bound when dealing with separate
2318 (article-goto-body-goes-to-point-min-p
2320 ((search-forward "\n\n" nil t)
2323 (goto-char (point-max))
2326 (defun article-strip-multiple-blank-lines ()
2327 "Replace consecutive blank lines with one empty line."
2330 (let ((inhibit-point-motion-hooks t)
2332 ;; First make all blank lines empty.
2334 (while (re-search-forward "^[ \t]+$" nil t)
2335 (unless (gnus-annotation-in-region-p
2336 (match-beginning 0) (match-end 0))
2337 (replace-match "" nil t)))
2338 ;; Then replace multiple empty lines with a single empty line.
2340 (while (re-search-forward "\n\n\\(\n+\\)" nil t)
2341 (unless (gnus-annotation-in-region-p
2342 (match-beginning 0) (match-end 0))
2343 (delete-region (match-beginning 1) (match-end 1)))))))
2345 (defun article-strip-leading-space ()
2346 "Remove all white space from the beginning of the lines in the article."
2349 (let ((inhibit-point-motion-hooks t)
2352 (while (re-search-forward "^[ \t]+" nil t)
2353 (replace-match "" t t)))))
2355 (defun article-strip-trailing-space ()
2356 "Remove all white space from the end of the lines in the article."
2359 (let ((inhibit-point-motion-hooks t)
2362 (while (re-search-forward "[ \t]+$" nil t)
2363 (replace-match "" t t)))))
2365 (defun article-strip-blank-lines ()
2366 "Strip leading, trailing and multiple blank lines."
2368 (article-strip-leading-blank-lines)
2369 (article-remove-trailing-blank-lines)
2370 (article-strip-multiple-blank-lines))
2372 (defun article-strip-all-blank-lines ()
2373 "Strip all blank lines."
2376 (let ((inhibit-point-motion-hooks t)
2379 (while (re-search-forward "^[ \t]*\n" nil t)
2380 (replace-match "" t t)))))
2382 (defun gnus-article-narrow-to-signature ()
2383 "Narrow to the signature; return t if a signature is found, else nil."
2384 (let ((inhibit-point-motion-hooks t))
2385 (when (gnus-article-search-signature)
2387 ;; Check whether we have some limits to what we consider
2388 ;; to be a signature.
2389 (let ((limits (if (listp gnus-signature-limit) gnus-signature-limit
2390 (list gnus-signature-limit)))
2392 (while (setq limit (pop limits))
2393 (if (or (and (integerp limit)
2394 (< (- (point-max) (point)) limit))
2396 (< (count-lines (point) (point-max)) limit))
2397 (and (gnus-functionp limit)
2399 (and (stringp limit)
2400 (not (re-search-forward limit nil t))))
2401 () ; This limit did not succeed.
2405 (narrow-to-region (point) (point-max))
2408 (defun gnus-article-search-signature ()
2409 "Search the current buffer for the signature separator.
2410 Put point at the beginning of the signature separator."
2411 (let ((cur (point)))
2412 (goto-char (point-max))
2413 (if (if (stringp gnus-signature-separator)
2414 (re-search-backward gnus-signature-separator nil t)
2415 (let ((seps gnus-signature-separator))
2417 (not (re-search-backward (car seps) nil t)))
2424 (defun gnus-article-hidden-arg ()
2425 "Return the current prefix arg as a number, or 0 if no prefix."
2426 (list (if current-prefix-arg
2427 (prefix-numeric-value current-prefix-arg)
2430 (defun gnus-article-check-hidden-text (type arg)
2431 "Return nil if hiding is necessary.
2432 Arg can be nil or a number. nil and positive means hide, negative
2433 means show, 0 means toggle."
2436 (let ((hide (gnus-article-hidden-text-p type)))
2442 (gnus-article-show-hidden-text type)
2445 (if (eq hide 'hidden)
2447 (gnus-article-show-hidden-text type)
2451 (defun gnus-article-hidden-text-p (type)
2452 "Say whether the current buffer contains hidden text of type TYPE."
2453 (let ((pos (text-property-any (point-min) (point-max) 'article-type type)))
2455 (not (get-text-property pos 'invisible))
2456 (not (get-text-property pos 'dummy-invisible)))
2458 (text-property-any (1+ pos) (point-max) 'article-type type)))
2463 (defun gnus-article-show-hidden-text (type &optional dummy)
2464 "Show all hidden text of type TYPE.
2465 Originally it is hide instead of DUMMY."
2466 (let ((buffer-read-only nil)
2467 (inhibit-point-motion-hooks t))
2468 (gnus-remove-text-properties-when
2470 (point-min) (point-max)
2471 (cons 'article-type (cons type
2472 gnus-hidden-properties)))
2473 (gnus-delete-wash-type type)))
2475 (defconst article-time-units
2476 `((year . ,(* 365.25 24 60 60))
2477 (week . ,(* 7 24 60 60))
2478 (day . ,(* 24 60 60))
2482 "Mapping from time units to seconds.")
2484 (defun article-date-ut (&optional type highlight header)
2485 "Convert DATE date to universal time in the current article.
2486 If TYPE is `local', convert to local time; if it is `lapsed', output
2487 how much time has lapsed since DATE. For `lapsed', the value of
2488 `gnus-article-date-lapsed-new-header' says whether the \"X-Sent:\" header
2489 should replace the \"Date:\" one, or should be added below it."
2490 (interactive (list 'ut t))
2491 (let* ((header (or header
2492 (message-fetch-field "date")
2494 (tdate-regexp "^Date:[ \t]\\|^X-Sent:[ \t]")
2497 ((not gnus-article-date-lapsed-new-header)
2503 (date (if (vectorp header) (mail-header-date header)
2505 (inhibit-point-motion-hooks t)
2510 (article-narrow-to-head)
2511 (when (re-search-forward tdate-regexp nil t)
2512 (setq bface (get-text-property (gnus-point-at-bol) 'face)
2513 date (or (get-text-property (gnus-point-at-bol)
2516 eface (get-text-property (1- (gnus-point-at-eol)) 'face))
2518 (when (and date (not (string= date "")))
2519 (goto-char (point-min))
2520 (let ((buffer-read-only nil))
2521 ;; Delete any old Date headers.
2522 (while (re-search-forward date-regexp nil t)
2524 (delete-region (progn (beginning-of-line) (point))
2525 (progn (forward-line 1) (point)))
2526 (delete-region (progn (beginning-of-line) (point))
2527 (progn (end-of-line) (point)))
2528 (setq pos (point))))
2529 (when (and (not pos) (re-search-forward tdate-regexp nil t))
2531 (if pos (goto-char pos))
2532 (insert (article-make-date-line date (or type 'ut)))
2538 (when (looking-at "\\([^:]+\\): *\\(.*\\)$")
2539 (put-text-property (match-beginning 1) (1+ (match-end 1))
2540 'original-date date)
2541 (put-text-property (match-beginning 1) (1+ (match-end 1))
2543 (put-text-property (match-beginning 2) (match-end 2)
2546 (defun article-make-date-line (date type)
2547 "Return a DATE line of TYPE."
2548 (unless (memq type '(local ut original user iso8601 lapsed english))
2549 (error "Unknown conversion type: %s" type))
2551 (let ((time (date-to-time date)))
2553 ;; Convert to the local timezone.
2555 (let ((tz (car (current-time-zone time))))
2556 (format "Date: %s %s%02d%02d" (current-time-string time)
2557 (if (> tz 0) "+" "-") (/ (abs tz) 3600)
2558 (/ (% (abs tz) 3600) 60))))
2559 ;; Convert to Universal Time.
2562 (current-time-string
2563 (let* ((e (parse-time-string date))
2564 (tm (apply 'encode-time e))
2566 (ls (- (cadr tm) (car (current-time-zone time)))))
2567 (cond ((< ls 0) (list (1- ms) (+ ls 65536)))
2568 ((> ls 65535) (list (1+ ms) (- ls 65536)))
2571 ;; Get the original date from the article.
2572 ((eq type 'original)
2573 (concat "Date: " (if (string-match "\n+$" date)
2574 (substring date 0 (match-beginning 0))
2576 ;; Let the user define the format.
2578 (if (gnus-functionp gnus-article-time-format)
2579 (funcall gnus-article-time-format time)
2582 (format-time-string gnus-article-time-format time))))
2585 (let ((tz (car (current-time-zone time))))
2588 (format-time-string "%Y%m%dT%H%M%S" time)
2589 (format "%s%02d%02d"
2590 (if (> tz 0) "+" "-") (/ (abs tz) 3600)
2591 (/ (% (abs tz) 3600) 60)))))
2592 ;; Do an X-Sent lapsed format.
2594 ;; If the date is seriously mangled, the timezone functions are
2595 ;; liable to bug out, so we ignore all errors.
2596 (let* ((now (current-time))
2597 (real-time (subtract-time now time))
2598 (real-sec (and real-time
2599 (+ (* (float (car real-time)) 65536)
2601 (sec (and real-time (abs real-sec)))
2611 ;; This is a bit convoluted, but basically we go
2612 ;; through the time units for years, weeks, etc,
2613 ;; and divide things to see whether that results
2614 ;; in positive answers.
2617 (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
2618 ;; The (remaining) seconds are too few to
2619 ;; be divided into this time unit.
2621 ;; It's big enough, so we output it.
2622 (setq sec (- sec (* num (cdr unit))))
2624 (concat (if prev ", " "") (int-to-string
2626 " " (symbol-name (car unit))
2627 (if (> num 1) "s" ""))
2629 article-time-units "")
2630 ;; If dates are odd, then it might appear like the
2631 ;; article was sent in the future.
2634 " in the future"))))))
2635 ;; Display the date in proper English
2637 (let ((dtime (decode-time time)))
2640 (number-to-string (nth 3 dtime))
2641 (let ((digit (% (nth 3 dtime) 10)))
2643 ((memq (nth 3 dtime) '(11 12 13)) "th")
2649 (nth (1- (nth 4 dtime)) gnus-english-month-names)
2651 (number-to-string (nth 5 dtime))
2653 (format "%02d" (nth 2 dtime))
2655 (format "%02d" (nth 1 dtime)))))))
2657 (format "Date: %s (from Oort)" date))))
2659 (defun article-date-local (&optional highlight)
2660 "Convert the current article date to the local timezone."
2661 (interactive (list t))
2662 (article-date-ut 'local highlight))
2664 (defun article-date-english (&optional highlight)
2665 "Convert the current article date to something that is proper English."
2666 (interactive (list t))
2667 (article-date-ut 'english highlight))
2669 (defun article-date-original (&optional highlight)
2670 "Convert the current article date to what it was originally.
2671 This is only useful if you have used some other date conversion
2672 function and want to see what the date was before converting."
2673 (interactive (list t))
2674 (article-date-ut 'original highlight))
2676 (defun article-date-lapsed (&optional highlight)
2677 "Convert the current article date to time lapsed since it was sent."
2678 (interactive (list t))
2679 (article-date-ut 'lapsed highlight))
2681 (defun article-update-date-lapsed ()
2682 "Function to be run from a timer to update the lapsed time line."
2683 (let (deactivate-mark)
2688 (set-buffer (window-buffer w))
2689 (when (eq major-mode 'gnus-article-mode)
2690 (goto-char (point-min))
2691 (when (re-search-forward "^X-Sent:" nil t)
2692 (article-date-lapsed t))))
2695 (defun gnus-start-date-timer (&optional n)
2696 "Start a timer to update the X-Sent header in the article buffers.
2697 The numerical prefix says how frequently (in seconds) the function
2702 (gnus-stop-date-timer)
2703 (setq article-lapsed-timer
2704 (nnheader-run-at-time 1 n 'article-update-date-lapsed)))
2706 (defun gnus-stop-date-timer ()
2707 "Stop the X-Sent timer."
2709 (when article-lapsed-timer
2710 (nnheader-cancel-timer article-lapsed-timer)
2711 (setq article-lapsed-timer nil)))
2713 (defun article-date-user (&optional highlight)
2714 "Convert the current article date to the user-defined format.
2715 This format is defined by the `gnus-article-time-format' variable."
2716 (interactive (list t))
2717 (article-date-ut 'user highlight))
2719 (defun article-date-iso8601 (&optional highlight)
2720 "Convert the current article date to ISO8601."
2721 (interactive (list t))
2722 (article-date-ut 'iso8601 highlight))
2724 ;; (defun article-show-all ()
2725 ;; "Show all hidden text in the article buffer."
2728 ;; (let ((buffer-read-only nil))
2729 ;; (gnus-article-unhide-text (point-min) (point-max)))))
2731 (defun article-remove-leading-whitespace ()
2732 "Remove excessive whitespace from all headers."
2736 (let ((buffer-read-only nil))
2737 (article-narrow-to-head)
2738 (goto-char (point-min))
2739 (while (re-search-forward "^[^ :]+: \\([ \t]+\\)" nil t)
2740 (delete-region (match-beginning 1) (match-end 1)))))))
2742 (defun article-emphasize (&optional arg)
2743 "Emphasize text according to `gnus-emphasis-alist'."
2744 (interactive (gnus-article-hidden-arg))
2745 (unless (gnus-article-check-hidden-text 'emphasis arg)
2749 (with-current-buffer gnus-summary-buffer
2750 gnus-article-emphasis-alist)
2752 gnus-emphasis-alist))
2753 (buffer-read-only nil)
2754 (props (append '(article-type emphasis)
2755 gnus-hidden-properties))
2756 regexp elem beg invisible visible face)
2759 (while (setq elem (pop alist))
2761 (setq regexp (car elem)
2762 invisible (nth 1 elem)
2763 visible (nth 2 elem)
2765 (while (re-search-forward regexp nil t)
2766 (when (and (match-beginning visible) (match-beginning invisible))
2767 (gnus-article-hide-text
2768 (match-beginning invisible) (match-end invisible) props)
2769 (gnus-article-unhide-text-type
2770 (match-beginning visible) (match-end visible) 'emphasis)
2771 (gnus-put-overlay-excluding-newlines
2772 (match-beginning visible) (match-end visible) 'face face)
2773 (gnus-add-wash-type 'emphasis)
2774 (goto-char (match-end invisible)))))))))
2776 (defun gnus-article-setup-highlight-words (&optional highlight-words)
2777 "Setup newsgroup emphasis alist."
2778 (unless gnus-article-emphasis-alist
2779 (let ((name (and gnus-newsgroup-name
2780 (gnus-group-real-name gnus-newsgroup-name))))
2781 (make-local-variable 'gnus-article-emphasis-alist)
2782 (setq gnus-article-emphasis-alist
2784 (let ((alist gnus-group-highlight-words-alist) elem highlight)
2785 (while (setq elem (pop alist))
2786 (when (and name (string-match (car elem) name))
2788 highlight (copy-sequence (cdr elem)))))
2790 (copy-sequence highlight-words)
2791 (if gnus-newsgroup-name
2792 (copy-sequence (gnus-group-find-parameter
2793 gnus-newsgroup-name 'highlight-words t)))
2794 gnus-emphasis-alist)))))
2797 (defvar gnus-summary-article-menu)
2798 (defvar gnus-summary-post-menu))
2800 ;;; Saving functions.
2802 (defun gnus-article-save (save-buffer file &optional num)
2803 "Save the currently selected article."
2804 (unless gnus-save-all-headers
2805 ;; Remove headers according to `gnus-saved-headers'.
2806 (let ((gnus-visible-headers
2807 (or gnus-saved-headers gnus-visible-headers))
2808 (gnus-article-buffer save-buffer))
2810 (set-buffer save-buffer)
2811 (article-hide-headers 1 t))))
2812 (save-window-excursion
2813 (if (not gnus-default-article-saver)
2814 (error "No default saver is defined")
2815 ;; !!! Magic! The saving functions all save
2816 ;; `gnus-save-article-buffer' (or so they think), but we
2817 ;; bind that variable to our save-buffer.
2818 (set-buffer gnus-article-buffer)
2819 (let* ((gnus-save-article-buffer save-buffer)
2822 ((not gnus-prompt-before-saving) 'default)
2823 ((eq gnus-prompt-before-saving 'always) nil)
2825 (gnus-number-of-articles-to-be-saved
2826 (when (eq gnus-prompt-before-saving t)
2828 (set-buffer gnus-article-current-summary)
2829 (funcall gnus-default-article-saver filename)))))
2831 (defun gnus-read-save-file-name (prompt &optional filename
2832 function group headers variable)
2834 (funcall function group headers (symbol-value variable)))
2839 ((eq filename 'default)
2845 (let* ((split-name (gnus-get-split-value gnus-split-methods))
2848 (if (and gnus-number-of-articles-to-be-saved
2849 (> gnus-number-of-articles-to-be-saved 1))
2850 (format "these %d articles"
2851 gnus-number-of-articles-to-be-saved)
2854 ;; Let the split methods have their say.
2856 ;; No split name was found.
2859 (concat prompt " (default "
2860 (file-name-nondirectory default-name) ") ")
2861 (file-name-directory default-name)
2863 ;; A single group name is returned.
2864 ((stringp split-name)
2866 (funcall function split-name headers
2867 (symbol-value variable)))
2869 (concat prompt " (default "
2870 (file-name-nondirectory default-name) ") ")
2871 (file-name-directory default-name)
2873 ;; A single split name was found
2874 ((= 1 (length split-name))
2875 (let* ((name (expand-file-name
2877 gnus-article-save-directory))
2878 (dir (cond ((file-directory-p name)
2879 (file-name-as-directory name))
2880 ((file-exists-p name) name)
2881 (t gnus-article-save-directory))))
2883 (concat prompt " (default " name ") ")
2885 ;; A list of splits was found.
2887 (setq split-name (nreverse split-name))
2889 (let ((file-name-history
2890 (nconc split-name file-name-history)))
2894 (concat prompt " (`M-p' for defaults) ")
2895 gnus-article-save-directory
2897 gnus-article-save-directory)))
2898 (car (push result file-name-history)))))))
2899 ;; Create the directory.
2900 (gnus-make-directory (file-name-directory file))
2901 ;; If we have read a directory, we append the default file name.
2902 (when (file-directory-p file)
2903 (setq file (expand-file-name (file-name-nondirectory
2905 (file-name-as-directory file))))
2906 ;; Possibly translate some characters.
2907 (nnheader-translate-file-chars file))))))
2908 (gnus-make-directory (file-name-directory result))
2909 (set variable result)))
2911 (defun gnus-article-archive-name (group)
2912 "Return the first instance of an \"Archive-name\" in the current buffer."
2913 (let ((case-fold-search t))
2914 (when (re-search-forward "archive-name: *\\([^ \n\t]+\\)[ \t]*$" nil t)
2915 (nnheader-concat gnus-article-save-directory
2916 (match-string 1)))))
2918 (defun gnus-article-nndoc-name (group)
2919 "If GROUP is an nndoc group, return the name of the parent group."
2920 (when (eq (car (gnus-find-method-for-group group)) 'nndoc)
2921 (gnus-group-get-parameter group 'save-article-group)))
2923 (defun gnus-summary-save-in-rmail (&optional filename)
2924 "Append this article to Rmail file.
2925 Optional argument FILENAME specifies file name.
2926 Directory to save to is default to `gnus-article-save-directory'."
2927 (setq filename (gnus-read-save-file-name
2928 "Save %s in rmail file:" filename
2929 gnus-rmail-save-name gnus-newsgroup-name
2930 gnus-current-headers 'gnus-newsgroup-last-rmail))
2931 (gnus-eval-in-buffer-window gnus-save-article-buffer
2935 (gnus-output-to-rmail filename))))
2938 (defun gnus-summary-save-in-mail (&optional filename)
2939 "Append this article to Unix mail file.
2940 Optional argument FILENAME specifies file name.
2941 Directory to save to is default to `gnus-article-save-directory'."
2942 (setq filename (gnus-read-save-file-name
2943 "Save %s in Unix mail file:" filename
2944 gnus-mail-save-name gnus-newsgroup-name
2945 gnus-current-headers 'gnus-newsgroup-last-mail))
2946 (gnus-eval-in-buffer-window gnus-save-article-buffer
2950 (if (and (file-readable-p filename)
2951 (mail-file-babyl-p filename))
2952 (rmail-output-to-rmail-file filename t)
2953 (gnus-output-to-mail filename)))))
2956 (defun gnus-summary-save-in-file (&optional filename overwrite)
2957 "Append this article to file.
2958 Optional argument FILENAME specifies file name.
2959 Directory to save to is default to `gnus-article-save-directory'."
2960 (setq filename (gnus-read-save-file-name
2961 "Save %s in file:" filename
2962 gnus-file-save-name gnus-newsgroup-name
2963 gnus-current-headers 'gnus-newsgroup-last-file))
2964 (gnus-eval-in-buffer-window gnus-save-article-buffer
2968 (when (and overwrite
2969 (file-exists-p filename))
2970 (delete-file filename))
2971 (gnus-output-to-file filename))))
2974 (defun gnus-summary-write-to-file (&optional filename)
2975 "Write this article to a file, overwriting it if the file exists.
2976 Optional argument FILENAME specifies file name.
2977 The directory to save in defaults to `gnus-article-save-directory'."
2978 (gnus-summary-save-in-file nil t))
2980 (defun gnus-summary-save-body-in-file (&optional filename)
2981 "Append this article body to a file.
2982 Optional argument FILENAME specifies file name.
2983 The directory to save in defaults to `gnus-article-save-directory'."
2984 (setq filename (gnus-read-save-file-name
2985 "Save %s body in file:" filename
2986 gnus-file-save-name gnus-newsgroup-name
2987 gnus-current-headers 'gnus-newsgroup-last-file))
2988 (gnus-eval-in-buffer-window gnus-save-article-buffer
2992 (when (article-goto-body)
2993 (narrow-to-region (point) (point-max)))
2994 (gnus-output-to-file filename))))
2997 (defun gnus-summary-save-in-pipe (&optional command)
2998 "Pipe this article to subprocess."
3000 (cond ((and (eq command 'default)
3001 gnus-last-shell-command)
3002 gnus-last-shell-command)
3007 "Shell command on %s: "
3008 (if (and gnus-number-of-articles-to-be-saved
3009 (> gnus-number-of-articles-to-be-saved 1))
3010 (format "these %d articles"
3011 gnus-number-of-articles-to-be-saved)
3013 gnus-last-shell-command))))
3014 (when (string-equal command "")
3015 (if gnus-last-shell-command
3016 (setq command gnus-last-shell-command)
3017 (error "A command is required")))
3018 (gnus-eval-in-buffer-window gnus-article-buffer
3021 (shell-command-on-region (point-min) (point-max) command nil)))
3022 (setq gnus-last-shell-command command))
3024 (defun gnus-summary-pipe-to-muttprint (&optional command)
3025 "Pipe this article to muttprint."
3026 (setq command (read-string
3027 "Print using command: " gnus-summary-muttprint-program
3028 nil gnus-summary-muttprint-program))
3029 (gnus-summary-save-in-pipe command))
3031 ;;; Article file names when saving.
3033 (defun gnus-capitalize-newsgroup (newsgroup)
3034 "Capitalize NEWSGROUP name."
3035 (when (not (zerop (length newsgroup)))
3036 (concat (char-to-string (upcase (aref newsgroup 0)))
3037 (substring newsgroup 1))))
3039 (defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
3040 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3041 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
3042 Otherwise, it is like ~/News/news/group/num."
3045 (concat (if (gnus-use-long-file-name 'not-save)
3046 (gnus-capitalize-newsgroup newsgroup)
3047 (gnus-newsgroup-directory-form newsgroup))
3048 "/" (int-to-string (mail-header-number headers)))
3049 gnus-article-save-directory)))
3051 (string-equal (file-name-directory default)
3052 (file-name-directory last-file))
3053 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
3055 (or last-file default))))
3057 (defun gnus-numeric-save-name (newsgroup headers &optional last-file)
3058 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3059 If variable `gnus-use-long-file-name' is non-nil, it is
3060 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
3063 (concat (if (gnus-use-long-file-name 'not-save)
3065 (gnus-newsgroup-directory-form newsgroup))
3066 "/" (int-to-string (mail-header-number headers)))
3067 gnus-article-save-directory)))
3069 (string-equal (file-name-directory default)
3070 (file-name-directory last-file))
3071 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
3073 (or last-file default))))
3075 (defun gnus-plain-save-name (newsgroup headers &optional last-file)
3076 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3077 If variable `gnus-use-long-file-name' is non-nil, it is
3078 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
3081 (if (gnus-use-long-file-name 'not-save)
3084 (expand-file-name "news" (gnus-newsgroup-directory-form newsgroup))
3086 gnus-article-save-directory)))
3088 (defun gnus-sender-save-name (newsgroup headers &optional last-file)
3089 "Generate file name from sender."
3090 (let ((from (mail-header-from headers)))
3092 (if (and from (string-match "\\([^ <]+\\)@" from))
3093 (match-string 1 from)
3095 gnus-article-save-directory)))
3097 (defun article-verify-x-pgp-sig ()
3100 (if (gnus-buffer-live-p gnus-original-article-buffer)
3101 (let ((sig (with-current-buffer gnus-original-article-buffer
3102 (gnus-fetch-field "X-PGP-Sig")))
3106 (mml2015-clear-verify-function))
3108 (insert-buffer gnus-original-article-buffer)
3109 (setq items (split-string sig))
3110 (message-narrow-to-head)
3111 (let ((inhibit-point-motion-hooks t)
3112 (case-fold-search t))
3113 ;; Don't verify multiple headers.
3114 (setq headers (mapconcat (lambda (header)
3116 (mail-fetch-field header) "\n"))
3117 (split-string (nth 1 items) ",") "")))
3118 (delete-region (point-min) (point-max))
3119 (insert "-----BEGIN PGP SIGNED MESSAGE-----\n\n")
3120 (insert "X-Signed-Headers: " (nth 1 items) "\n")
3125 (if (looking-at "^-")
3128 (insert "\n-----BEGIN PGP SIGNATURE-----\n")
3129 (insert "Version: " (car items) "\n\n")
3130 (insert (mapconcat 'identity (cddr items) "\n"))
3131 (insert "\n-----END PGP SIGNATURE-----\n")
3132 (let ((mm-security-handle (list (format "multipart/signed"))))
3133 (mml2015-clean-buffer)
3134 (let ((coding-system-for-write (or gnus-newsgroup-charset
3136 (funcall (mml2015-clear-verify-function)))
3138 (or (mm-handle-multipart-ctl-parameter
3139 mm-security-handle 'gnus-details)
3140 (mm-handle-multipart-ctl-parameter
3141 mm-security-handle 'gnus-info)))))
3143 (let (buffer-read-only bface eface)
3145 (message-narrow-to-head)
3146 (goto-char (point-max))
3148 (setq bface (get-text-property (gnus-point-at-bol) 'face)
3149 eface (get-text-property (1- (gnus-point-at-eol)) 'face))
3150 (message-remove-header "X-Gnus-PGP-Verify")
3151 (if (re-search-forward "^X-PGP-Sig:" nil t)
3153 (goto-char (point-max)))
3154 (narrow-to-region (point) (point))
3155 (insert "X-Gnus-PGP-Verify: " info "\n")
3156 (goto-char (point-min))
3159 (if (not (looking-at "^[ \t]"))
3163 (goto-char (point-min))
3164 (when (looking-at "\\([^:]+\\): *")
3165 (put-text-property (match-beginning 1) (1+ (match-end 1))
3167 (put-text-property (match-end 0) (point-max)
3168 'face eface)))))))))
3170 (defun article-verify-cancel-lock ()
3171 "Verify Cancel-Lock header."
3173 (if (gnus-buffer-live-p gnus-original-article-buffer)
3174 (canlock-verify gnus-original-article-buffer)))
3181 (setq afunc (car func)
3184 gfunc (intern (format "gnus-%s" func))))
3186 (when (fboundp afunc)
3187 `(lambda (&optional interactive &rest args)
3188 ,(documentation afunc t)
3189 (interactive (list t))
3191 (set-buffer gnus-article-buffer)
3193 (call-interactively ',afunc)
3194 (apply ',afunc args))))))))
3195 '(article-hide-headers
3196 article-verify-x-pgp-sig
3197 article-verify-cancel-lock
3198 article-hide-boring-headers
3199 article-treat-overstrike
3200 article-fill-long-lines
3201 article-capitalize-sentences
3203 article-remove-leading-whitespace
3204 article-display-x-face
3205 article-de-quoted-unreadable
3206 article-de-base64-unreadable
3209 article-unsplit-urls
3210 article-hide-list-identifiers
3212 article-strip-banner
3215 article-hide-signature
3216 article-strip-headers-in-body
3217 article-remove-trailing-blank-lines
3218 article-strip-leading-blank-lines
3219 article-strip-multiple-blank-lines
3220 article-strip-leading-space
3221 article-strip-trailing-space
3222 article-strip-blank-lines
3223 article-strip-all-blank-lines
3224 article-replace-with-quoted-text
3226 article-date-english
3227 article-date-iso8601
3228 article-date-original
3230 article-decode-mime-words
3231 article-decode-charset
3232 article-decode-encoded-words
3236 article-treat-dumbquotes
3237 article-normalize-headers
3238 ;; (article-show-all . gnus-article-show-all-headers)
3242 ;;; Gnus article mode
3245 (put 'gnus-article-mode 'mode-class 'special)
3247 (set-keymap-parent gnus-article-mode-map widget-keymap)
3249 (gnus-define-keys gnus-article-mode-map
3250 " " gnus-article-goto-next-page
3251 "\177" gnus-article-goto-prev-page
3252 [delete] gnus-article-goto-prev-page
3253 [backspace] gnus-article-goto-prev-page
3254 "\C-c^" gnus-article-refer-article
3255 "h" gnus-article-show-summary
3256 "s" gnus-article-show-summary
3257 "\C-c\C-m" gnus-article-mail
3258 "?" gnus-article-describe-briefly
3259 "e" gnus-summary-edit-article
3260 "<" beginning-of-buffer
3262 "\C-c\C-i" gnus-info-find-node
3264 "R" gnus-article-reply-with-original
3265 "F" gnus-article-followup-with-original
3266 "\C-hk" gnus-article-describe-key
3267 "\C-hc" gnus-article-describe-key-briefly
3269 "\C-d" gnus-article-read-summary-keys
3270 "\M-*" gnus-article-read-summary-keys
3271 "\M-#" gnus-article-read-summary-keys
3272 "\M-^" gnus-article-read-summary-keys
3273 "\M-g" gnus-article-read-summary-keys)
3275 (substitute-key-definition
3276 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
3278 (defun gnus-article-make-menu-bar ()
3279 (unless (boundp 'gnus-article-commands-menu)
3280 (gnus-summary-make-menu-bar))
3281 (gnus-turn-off-edit-menu 'article)
3282 (unless (boundp 'gnus-article-article-menu)
3284 gnus-article-article-menu gnus-article-mode-map ""
3286 ["Scroll forwards" gnus-article-goto-next-page t]
3287 ["Scroll backwards" gnus-article-goto-prev-page t]
3288 ["Show summary" gnus-article-show-summary t]
3289 ["Fetch Message-ID at point" gnus-article-refer-article t]
3290 ["Mail to address at point" gnus-article-mail t]
3291 ["Send a bug report" gnus-bug t]))
3294 gnus-article-treatment-menu gnus-article-mode-map ""
3295 ;; Fixme: this should use :active (and maybe :visible).
3297 ["Hide headers" gnus-article-hide-headers t]
3298 ["Hide signature" gnus-article-hide-signature t]
3299 ["Hide citation" gnus-article-hide-citation t]
3300 ["Treat overstrike" gnus-article-treat-overstrike t]
3301 ["Remove carriage return" gnus-article-remove-cr t]
3302 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
3303 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
3304 ["Remove base64" gnus-article-de-base64-unreadable t]
3305 ["Treat html" gnus-article-wash-html t]
3306 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
3307 ["Decode HZ" gnus-article-decode-HZ t]))
3309 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
3311 ;; Note "Post" menu is defined in gnus-sum.el for consistency
3313 (gnus-run-hooks 'gnus-article-menu-hook)))
3315 ;; Fixme: do something for the Emacs tool bar in Article mode a la
3318 (defun gnus-article-mode ()
3319 "Major mode for displaying an article.
3321 All normal editing commands are switched off.
3323 The following commands are available in addition to all summary mode
3325 \\<gnus-article-mode-map>
3326 \\[gnus-article-next-page]\t Scroll the article one page forwards
3327 \\[gnus-article-prev-page]\t Scroll the article one page backwards
3328 \\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
3329 \\[gnus-article-show-summary]\t Display the summary buffer
3330 \\[gnus-article-mail]\t Send a reply to the address near point
3331 \\[gnus-article-describe-briefly]\t Describe the current mode briefly
3332 \\[gnus-info-find-node]\t Go to the Gnus info node"
3334 (gnus-simplify-mode-line)
3335 (setq mode-name "Article")
3336 (setq major-mode 'gnus-article-mode)
3337 (make-local-variable 'minor-mode-alist)
3338 (use-local-map gnus-article-mode-map)
3339 (when (gnus-visual-p 'article-menu 'menu)
3340 (gnus-article-make-menu-bar))
3341 (gnus-update-format-specifications nil 'article-mode)
3342 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
3343 (make-local-variable 'gnus-page-broken)
3344 (make-local-variable 'gnus-button-marker-list)
3345 (make-local-variable 'gnus-article-current-summary)
3346 (make-local-variable 'gnus-article-mime-handles)
3347 (make-local-variable 'gnus-article-decoded-p)
3348 (make-local-variable 'gnus-article-mime-handle-alist)
3349 (make-local-variable 'gnus-article-wash-types)
3350 (make-local-variable 'gnus-article-image-alist)
3351 (make-local-variable 'gnus-article-charset)
3352 (make-local-variable 'gnus-article-ignored-charsets)
3353 (gnus-set-default-directory)
3354 (buffer-disable-undo)
3355 (setq buffer-read-only t)
3356 (set-syntax-table gnus-article-mode-syntax-table)
3357 (mm-enable-multibyte)
3358 (gnus-run-hooks 'gnus-article-mode-hook))
3360 (defun gnus-article-setup-buffer ()
3361 "Initialize the article buffer."
3362 (let* ((name (if gnus-single-article-buffer "*Article*"
3363 (concat "*Article " gnus-newsgroup-name "*")))
3365 (progn (string-match "\\*Article" name)
3366 (concat " *Original Article"
3367 (substring name (match-end 0))))))
3368 (setq gnus-article-buffer name)
3369 (setq gnus-original-article-buffer original)
3370 (setq gnus-article-mime-handle-alist nil)
3371 ;; This might be a variable local to the summary buffer.
3372 (unless gnus-single-article-buffer
3374 (set-buffer gnus-summary-buffer)
3375 (setq gnus-article-buffer name)
3376 (setq gnus-original-article-buffer original)
3377 (gnus-set-global-variables)))
3378 (gnus-article-setup-highlight-words)
3379 ;; Init original article buffer.
3381 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
3382 (mm-enable-multibyte)
3383 (setq major-mode 'gnus-original-article-mode)
3384 (make-local-variable 'gnus-original-article))
3385 (if (get-buffer name)
3388 (when gnus-article-mime-handles
3389 (mm-destroy-parts gnus-article-mime-handles)
3390 (setq gnus-article-mime-handles nil))
3391 ;; Set it to nil in article-buffer!
3392 (setq gnus-article-mime-handle-alist nil)
3393 (buffer-disable-undo)
3394 (setq buffer-read-only t)
3395 (unless (eq major-mode 'gnus-article-mode)
3396 (gnus-article-mode))
3399 (set-buffer (gnus-get-buffer-create name))
3401 (make-local-variable 'gnus-summary-buffer)
3402 (gnus-summary-set-local-parameters gnus-newsgroup-name)
3403 (current-buffer)))))
3405 ;; Set article window start at LINE, where LINE is the number of lines
3406 ;; from the head of the article.
3407 (defun gnus-article-set-window-start (&optional line)
3409 (gnus-get-buffer-window gnus-article-buffer t)
3411 (set-buffer gnus-article-buffer)
3412 (goto-char (point-min))
3415 (gnus-message 6 "Moved to bookmark")
3416 (search-forward "\n\n" nil t)
3420 (defun gnus-article-prepare (article &optional all-headers header)
3421 "Prepare ARTICLE in article mode buffer.
3422 ARTICLE should either be an article number or a Message-ID.
3423 If ARTICLE is an id, HEADER should be the article headers.
3424 If ALL-HEADERS is non-nil, no headers are hidden."
3426 ;; Make sure we start in a summary buffer.
3427 (unless (eq major-mode 'gnus-summary-mode)
3428 (set-buffer gnus-summary-buffer))
3429 (setq gnus-summary-buffer (current-buffer))
3430 (let* ((gnus-article (if header (mail-header-number header) article))
3431 (summary-buffer (current-buffer))
3432 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
3433 (group gnus-newsgroup-name)
3436 (gnus-article-setup-buffer)
3437 (set-buffer gnus-article-buffer)
3438 ;; Deactivate active regions.
3439 (when (and (boundp 'transient-mark-mode)
3440 transient-mark-mode)
3441 (setq mark-active nil))
3442 (if (not (setq result (let ((buffer-read-only nil))
3443 (gnus-request-article-this-buffer
3445 ;; There is no such article.
3447 (when (and (numberp article)
3448 (not (memq article gnus-newsgroup-sparse)))
3449 (setq gnus-article-current
3450 (cons gnus-newsgroup-name article))
3451 (set-buffer gnus-summary-buffer)
3452 (setq gnus-current-article article)
3453 (if (eq (gnus-article-mark article) gnus-undownloaded-mark)
3455 (gnus-summary-set-agent-mark article)
3456 (message "Message marked for downloading"))
3457 (gnus-summary-mark-article article gnus-canceled-mark)
3458 (unless (memq article gnus-newsgroup-sparse)
3459 (gnus-error 1 "No such article (may have expired or been canceled)")))))
3460 (if (or (eq result 'pseudo)
3461 (eq result 'nneething))
3464 (set-buffer summary-buffer)
3465 (push article gnus-newsgroup-history)
3466 (setq gnus-last-article gnus-current-article
3467 gnus-current-article 0
3468 gnus-current-headers nil
3469 gnus-article-current nil)
3470 (if (eq result 'nneething)
3471 (gnus-configure-windows 'summary)
3472 (gnus-configure-windows 'article))
3473 (gnus-set-global-variables))
3474 (let ((gnus-article-mime-handle-alist-1
3475 gnus-article-mime-handle-alist))
3476 (gnus-set-mode-line 'article)))
3477 ;; The result from the `request' was an actual article -
3478 ;; or at least some text that is now displayed in the
3480 (when (and (numberp article)
3481 (not (eq article gnus-current-article)))
3482 ;; Seems like a new article has been selected.
3483 ;; `gnus-current-article' must be an article number.
3485 (set-buffer summary-buffer)
3486 (push article gnus-newsgroup-history)
3487 (setq gnus-last-article gnus-current-article
3488 gnus-current-article article
3489 gnus-current-headers
3490 (gnus-summary-article-header gnus-current-article)
3491 gnus-article-current
3492 (cons gnus-newsgroup-name gnus-current-article))
3493 (unless (vectorp gnus-current-headers)
3494 (setq gnus-current-headers nil))
3495 (gnus-summary-goto-subject gnus-current-article)
3496 (when (gnus-summary-show-thread)
3497 ;; If the summary buffer really was folded, the
3498 ;; previous goto may not actually have gone to
3499 ;; the right article, but the thread root instead.
3501 (gnus-summary-goto-subject gnus-current-article))
3502 (gnus-run-hooks 'gnus-mark-article-hook)
3503 (gnus-set-mode-line 'summary)
3504 (when (gnus-visual-p 'article-highlight 'highlight)
3505 (gnus-run-hooks 'gnus-visual-mark-article-hook))
3506 ;; Set the global newsgroup variables here.
3507 (gnus-set-global-variables)
3508 (setq gnus-have-all-headers
3509 (or all-headers gnus-show-all-headers))))
3511 (gnus-configure-windows 'article))
3512 (when (or (numberp article)
3514 (gnus-article-prepare-display)
3516 (goto-char (point-min))
3517 (setq gnus-page-broken
3518 (when gnus-break-pages
3519 (gnus-narrow-to-page)
3521 (let ((gnus-article-mime-handle-alist-1
3522 gnus-article-mime-handle-alist))
3523 (gnus-set-mode-line 'article))
3525 (set-window-point (get-buffer-window (current-buffer)) (point))
3526 (gnus-configure-windows 'article)
3530 (defun gnus-article-prepare-display ()
3531 "Make the current buffer look like a nice article."
3532 ;; Hooks for getting information from the article.
3533 ;; This hook must be called before being narrowed.
3534 (let ((gnus-article-buffer (current-buffer))
3536 (unless (eq major-mode 'gnus-article-mode)
3537 (gnus-article-mode))
3538 (setq buffer-read-only nil
3539 gnus-article-wash-types nil
3540 gnus-article-image-alist nil)
3541 (gnus-run-hooks 'gnus-tmp-internal-hook)
3542 (when gnus-display-mime-function
3543 (funcall gnus-display-mime-function))
3544 (gnus-run-hooks 'gnus-article-prepare-hook)))
3547 ;;; Gnus MIME viewing functions
3550 (defvar gnus-mime-button-line-format "%{%([%p. %d%T]%)%}%e\n"
3551 "Format of the MIME buttons.
3553 Valid specifiers include:
3555 %T MIME type, along with additional info
3556 %n The `name' parameter
3557 %d The description, if any
3558 %l The length of the encoded part
3559 %p The part identifier number
3560 %e Dots if the part isn't displayed
3562 General format specifiers can also be used. See
3563 (gnus)Formatting Variables.")
3565 (defvar gnus-mime-button-line-format-alist
3566 '((?t gnus-tmp-type ?s)
3567 (?T gnus-tmp-type-long ?s)
3568 (?n gnus-tmp-name ?s)
3569 (?d gnus-tmp-description ?s)
3571 (?l gnus-tmp-length ?d)
3572 (?e gnus-tmp-dots ?s)))
3574 (defvar gnus-mime-button-commands
3575 '((gnus-article-press-button "\r" "Toggle Display")
3576 (gnus-mime-view-part "v" "View Interactively...")
3577 (gnus-mime-view-part-as-type "t" "View As Type...")
3578 (gnus-mime-view-part-as-charset "C" "View As charset...")
3579 (gnus-mime-save-part "o" "Save...")
3580 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
3581 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
3582 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
3583 (gnus-mime-internalize-part "E" "View Internally")
3584 (gnus-mime-externalize-part "e" "View Externally")
3585 (gnus-mime-print-part "p" "Print")
3586 (gnus-mime-pipe-part "|" "Pipe To Command...")
3587 (gnus-mime-action-on-part "." "Take action on the part")))
3589 (defun gnus-article-mime-part-status ()
3590 (if gnus-article-mime-handle-alist-1
3591 (if (eq 1 (length gnus-article-mime-handle-alist-1))
3593 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
3596 (defvar gnus-mime-button-map
3597 (let ((map (make-sparse-keymap)))
3598 (unless (>= (string-to-number emacs-version) 21)
3599 ;; XEmacs doesn't care.
3600 (set-keymap-parent map gnus-article-mode-map))
3601 (define-key map gnus-mouse-2 'gnus-article-push-button)
3602 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
3603 (dolist (c gnus-mime-button-commands)
3604 (define-key map (cadr c) (car c)))
3607 (defun gnus-mime-button-menu (event)
3608 "Construct a context-sensitive menu of MIME commands."
3610 (save-window-excursion
3611 (let ((pos (event-start event)))
3612 (select-window (posn-window pos))
3613 (goto-char (posn-point pos))
3614 (gnus-article-check-buffer)
3615 (let ((response (x-popup-menu
3617 ("" ,@(mapcar (lambda (c)
3618 (cons (caddr c) (car c)))
3619 gnus-mime-button-commands))))))
3621 (call-interactively response))))))
3623 (defun gnus-mime-view-all-parts (&optional handles)
3624 "View all the MIME parts."
3626 (save-current-buffer
3627 (set-buffer gnus-article-buffer)
3628 (let ((handles (or handles gnus-article-mime-handles))
3629 (mail-parse-charset gnus-newsgroup-charset)
3630 (mail-parse-ignored-charsets
3631 (with-current-buffer gnus-summary-buffer
3632 gnus-newsgroup-ignored-charsets)))
3634 (mm-remove-parts handles)
3635 (goto-char (point-min))
3636 (or (search-forward "\n\n") (goto-char (point-max)))
3637 (let (buffer-read-only)
3638 (delete-region (point) (point-max))
3639 (mm-display-parts handles))))))
3641 (defun gnus-mime-save-part-and-strip ()
3642 "Save the MIME part under point then replace it with an external body."
3644 (gnus-article-check-buffer)
3645 (let* ((data (get-text-property (point) 'gnus-data))
3647 (handles gnus-article-mime-handles))
3648 (if (mm-multiple-handles gnus-article-mime-handles)
3649 (error "This function is not implemented"))
3650 (setq file (and data (mm-save-part data)))
3652 (with-current-buffer (mm-handle-buffer data)
3654 (insert "Content-Type: " (mm-handle-media-type data))
3655 (mml-insert-parameter-string (cdr (mm-handle-type data))
3658 (insert "Content-ID: " (message-make-message-id) "\n")
3659 (insert "Content-Transfer-Encoding: binary\n")
3662 (cdr (mm-make-handle nil
3663 `("message/external-body"
3664 (access-type . "LOCAL-FILE")
3666 (set-buffer gnus-summary-buffer)
3667 (gnus-article-edit-article
3670 (let ((mail-parse-charset (or gnus-article-charset
3671 ',gnus-newsgroup-charset))
3672 (mail-parse-ignored-charsets
3673 (or gnus-article-ignored-charsets
3674 ',gnus-newsgroup-ignored-charsets))
3675 (mbl mml-buffer-list))
3676 (setq mml-buffer-list nil)
3677 (insert-buffer gnus-original-article-buffer)
3678 (mime-to-mml ',handles)
3679 (setq gnus-article-mime-handles nil)
3680 (let ((mbl1 mml-buffer-list))
3681 (setq mml-buffer-list mbl)
3682 (set (make-local-variable 'mml-buffer-list) mbl1))
3683 ;; LOCAL argument of add-hook differs between GNU Emacs
3684 ;; and XEmacs. make-local-hook makes sure they are local.
3685 (make-local-hook 'kill-buffer-hook)
3686 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
3687 `(lambda (no-highlight)
3688 (let ((mail-parse-charset (or gnus-article-charset
3689 ',gnus-newsgroup-charset))
3690 (message-options message-options)
3691 (message-options-set-recipient)
3692 (mail-parse-ignored-charsets
3693 (or gnus-article-ignored-charsets
3694 ',gnus-newsgroup-ignored-charsets)))
3696 (mml-destroy-buffers)
3697 (remove-hook 'kill-buffer-hook
3698 'mml-destroy-buffers t)
3699 (kill-local-variable 'mml-buffer-list))
3700 (gnus-summary-edit-article-done
3701 ,(or (mail-header-references gnus-current-headers) "")
3702 ,(gnus-group-read-only-p)
3703 ,gnus-summary-buffer no-highlight))))))
3705 (defun gnus-mime-save-part ()
3706 "Save the MIME part under point."
3708 (gnus-article-check-buffer)
3709 (let ((data (get-text-property (point) 'gnus-data)))
3711 (mm-save-part data))))
3713 (defun gnus-mime-pipe-part ()
3714 "Pipe the MIME part under point to a process."
3716 (gnus-article-check-buffer)
3717 (let ((data (get-text-property (point) 'gnus-data)))
3719 (mm-pipe-part data))))
3721 (defun gnus-mime-view-part ()
3722 "Interactively choose a viewing method for the MIME part under point."
3724 (gnus-article-check-buffer)
3725 (let ((data (get-text-property (point) 'gnus-data)))
3727 (setq gnus-article-mime-handles
3729 gnus-article-mime-handles (setq data (copy-sequence data))))
3730 (mm-interactively-view-part data))))
3732 (defun gnus-mime-view-part-as-type-internal ()
3733 (gnus-article-check-buffer)
3734 (let* ((name (mail-content-type-get
3735 (mm-handle-type (get-text-property (point) 'gnus-data))
3737 (def-type (and name (mm-default-file-encoding name))))
3738 (and def-type (cons def-type 0))))
3740 (defun gnus-mime-view-part-as-type (&optional mime-type)
3741 "Choose a MIME media type, and view the part as such."
3744 (setq mime-type (completing-read
3745 "View as MIME type: "
3746 (mapcar #'list (mailcap-mime-types))
3748 (gnus-mime-view-part-as-type-internal))))
3749 (gnus-article-check-buffer)
3750 (let ((handle (get-text-property (point) 'gnus-data)))
3753 (mm-make-handle (mm-handle-buffer handle)
3754 (cons mime-type (cdr (mm-handle-type handle)))
3755 (mm-handle-encoding handle)
3756 (mm-handle-undisplayer handle)
3757 (mm-handle-disposition handle)
3758 (mm-handle-description handle)
3760 (mm-handle-id handle)))
3761 (setq gnus-article-mime-handles
3762 (mm-merge-handles gnus-article-mime-handles handle))
3763 (gnus-mm-display-part handle))))
3765 (defun gnus-mime-copy-part (&optional handle)
3766 "Put the MIME part under point into a new buffer."
3768 (gnus-article-check-buffer)
3769 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3770 (contents (and handle (mm-get-part handle)))
3772 (file-name-nondirectory
3774 (mail-content-type-get (mm-handle-type handle) 'name)
3775 (mail-content-type-get (mm-handle-type handle)
3778 (buffer (and base (generate-new-buffer base))))
3780 (switch-to-buffer buffer)
3782 ;; We do it this way to make `normal-mode' set the appropriate mode.
3785 (setq buffer-file-name (expand-file-name base))
3787 (setq buffer-file-name nil))
3788 (goto-char (point-min)))))
3790 (defun gnus-mime-print-part (&optional handle filename)
3791 "Print the MIME part under point."
3792 (interactive (list nil (ps-print-preprint current-prefix-arg)))
3793 (gnus-article-check-buffer)
3794 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3795 (contents (and handle (mm-get-part handle)))
3796 (file (make-temp-name (expand-file-name "mm." mm-tmp-directory)))
3797 (printer (mailcap-mime-info (mm-handle-type handle) "print")))
3802 (with-temp-file file
3804 (call-process shell-file-name nil
3805 (generate-new-buffer " *mm*")
3807 shell-command-switch
3809 printer file (mm-handle-type handle))))
3813 (gnus-print-buffer))
3814 (ps-despool filename)))))
3816 (defun gnus-mime-inline-part (&optional handle arg)
3817 "Insert the MIME part under point into the current buffer."
3818 (interactive (list nil current-prefix-arg))
3819 (gnus-article-check-buffer)
3820 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3825 (if (and (not arg) (mm-handle-undisplayer handle))
3826 (mm-remove-part handle)
3827 (setq contents (mm-get-part handle))
3830 (setq charset (or (mail-content-type-get
3831 (mm-handle-type handle) 'charset)
3832 gnus-newsgroup-charset)))
3834 (if (mm-handle-undisplayer handle)
3835 (mm-remove-part handle))
3838 gnus-summary-show-article-charset-alist))
3839 (mm-read-coding-system "Charset: ")))))
3841 (mm-insert-inline handle
3843 (setq charset (mm-charset-to-coding-system
3845 (not (eq charset 'ascii)))
3846 (mm-decode-coding-string contents charset)
3850 (defun gnus-mime-view-part-as-charset (&optional handle arg)
3851 "Insert the MIME part under point into the current buffer using the
3853 (interactive (list nil current-prefix-arg))
3854 (gnus-article-check-buffer)
3855 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3860 (if (mm-handle-undisplayer handle)
3861 (mm-remove-part handle))
3862 (let ((gnus-newsgroup-charset
3864 gnus-summary-show-article-charset-alist))
3865 (mm-read-coding-system "Charset: ")))
3866 (gnus-newsgroup-ignored-charsets 'gnus-all))
3867 (gnus-article-press-button)))))
3869 (defun gnus-mime-externalize-part (&optional handle)
3870 "View the MIME part under point with an external viewer."
3872 (gnus-article-check-buffer)
3873 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3874 (mm-user-display-methods nil)
3875 (mm-inlined-types nil)
3876 (mail-parse-charset gnus-newsgroup-charset)
3877 (mail-parse-ignored-charsets
3878 (save-excursion (set-buffer gnus-summary-buffer)
3879 gnus-newsgroup-ignored-charsets)))
3881 (if (mm-handle-undisplayer handle)
3882 (mm-remove-part handle)
3883 (mm-display-part handle)))))
3885 (defun gnus-mime-internalize-part (&optional handle)
3886 "View the MIME part under point with an internal viewer.
3887 If no internal viewer is available, use an external viewer."
3889 (gnus-article-check-buffer)
3890 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3891 (mm-inlined-types '(".*"))
3892 (mm-inline-large-images t)
3893 (mail-parse-charset gnus-newsgroup-charset)
3894 (mail-parse-ignored-charsets
3895 (save-excursion (set-buffer gnus-summary-buffer)
3896 gnus-newsgroup-ignored-charsets)))
3898 (if (mm-handle-undisplayer handle)
3899 (mm-remove-part handle)
3900 (mm-display-part handle)))))
3902 (defun gnus-mime-action-on-part (&optional action)
3903 "Do something with the MIME attachment at \(point\)."
3905 (list (completing-read "Action: " gnus-mime-action-alist)))
3906 (gnus-article-check-buffer)
3907 (let ((action-pair (assoc action gnus-mime-action-alist)))
3909 (funcall (cdr action-pair)))))
3911 (defun gnus-article-part-wrapper (n function)
3912 (save-current-buffer
3913 (set-buffer gnus-article-buffer)
3914 (when (> n (length gnus-article-mime-handle-alist))
3915 (error "No such part"))
3916 (gnus-article-goto-part n)
3917 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
3918 (funcall function handle))))
3920 (defun gnus-article-pipe-part (n)
3921 "Pipe MIME part N, which is the numerical prefix."
3923 (gnus-article-part-wrapper n 'mm-pipe-part))
3925 (defun gnus-article-save-part (n)
3926 "Save MIME part N, which is the numerical prefix."
3928 (gnus-article-part-wrapper n 'mm-save-part))
3930 (defun gnus-article-interactively-view-part (n)
3931 "View MIME part N interactively, which is the numerical prefix."
3933 (gnus-article-part-wrapper n 'mm-interactively-view-part))
3935 (defun gnus-article-copy-part (n)
3936 "Copy MIME part N, which is the numerical prefix."
3938 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
3940 (defun gnus-article-view-part-as-charset (n)
3941 "Copy MIME part N, which is the numerical prefix."
3943 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
3945 (defun gnus-article-externalize-part (n)
3946 "View MIME part N externally, which is the numerical prefix."
3948 (gnus-article-part-wrapper n 'gnus-mime-externalize-part))
3950 (defun gnus-article-inline-part (n)
3951 "Inline MIME part N, which is the numerical prefix."
3953 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
3955 (defun gnus-article-mime-match-handle-first (condition)
3957 (let ((alist gnus-article-mime-handle-alist) ihandle n)
3958 (while (setq ihandle (pop alist))
3960 ((functionp condition)
3961 (funcall condition (cdr ihandle)))
3962 ((eq condition 'undisplayed)
3963 (not (or (mm-handle-undisplayer (cdr ihandle))
3964 (equal (mm-handle-media-type (cdr ihandle))
3965 "multipart/alternative"))))
3966 ((eq condition 'undisplayed-alternative)
3967 (not (mm-handle-undisplayer (cdr ihandle))))
3969 (gnus-article-goto-part (car ihandle))
3970 (or (not n) (< (car ihandle) n)))
3971 (setq n (car ihandle))))
3975 (defun gnus-article-view-part (&optional n)
3976 "View MIME part N, which is the numerical prefix."
3978 (save-current-buffer
3979 (set-buffer gnus-article-buffer)
3980 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
3981 gnus-article-mime-match-handle-function)))
3982 (when (> n (length gnus-article-mime-handle-alist))
3983 (error "No such part"))
3984 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
3985 (when (gnus-article-goto-part n)
3986 (if (equal (car handle) "multipart/alternative")
3987 (gnus-article-press-button)
3988 (when (eq (gnus-mm-display-part handle) 'internal)
3989 (gnus-set-window-start)))))))
3991 (defsubst gnus-article-mime-total-parts ()
3992 (if (bufferp (car gnus-article-mime-handles))
3994 (1- (length gnus-article-mime-handles))))
3996 (defun gnus-mm-display-part (handle)
3997 "Display HANDLE and fix MIME button."
3998 (let ((id (get-text-property (point) 'gnus-part))
4003 (let ((window (selected-window))
4004 (mail-parse-charset gnus-newsgroup-charset)
4005 (mail-parse-ignored-charsets
4006 (if (gnus-buffer-live-p gnus-summary-buffer)
4008 (set-buffer gnus-summary-buffer)
4009 gnus-newsgroup-ignored-charsets)
4013 (let ((win (gnus-get-buffer-window (current-buffer) t))
4016 (select-window win))
4019 (if (mm-handle-displayed-p handle)
4020 ;; This will remove the part.
4021 (mm-display-part handle)
4023 (narrow-to-region (point)
4024 (if (eobp) (point) (1+ (point))))
4025 (mm-display-part handle)
4026 ;; We narrow to the part itself and
4027 ;; then call the treatment functions.
4028 (goto-char (point-min))
4030 (narrow-to-region (point) (point-max))
4033 (gnus-article-mime-total-parts)
4034 (mm-handle-media-type handle)))))
4035 (if (window-live-p window)
4036 (select-window window)))))
4038 (delete-region (gnus-point-at-bol) (progn (forward-line 1) (point)))
4039 (gnus-insert-mime-button
4040 handle id (list (mm-handle-displayed-p handle)))
4041 (goto-char point))))
4043 (defun gnus-article-goto-part (n)
4044 "Go to MIME part N."
4045 (let ((point (text-property-any (point-min) (point-max) 'gnus-part n)))
4047 (goto-char point))))
4049 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
4050 (let ((gnus-tmp-name
4051 (or (mail-content-type-get (mm-handle-type handle) 'name)
4052 (mail-content-type-get (mm-handle-disposition handle) 'filename)
4053 (mail-content-type-get (mm-handle-type handle) 'url)
4055 (gnus-tmp-type (mm-handle-media-type handle))
4056 (gnus-tmp-description
4057 (mail-decode-encoded-word-string (or (mm-handle-description handle)
4060 (if (if displayed (car displayed)
4061 (mm-handle-displayed-p handle))
4063 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
4065 gnus-tmp-type-long b e)
4066 (when (string-match ".*/" gnus-tmp-name)
4067 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
4068 (setq gnus-tmp-type-long (concat gnus-tmp-type
4069 (and (not (equal gnus-tmp-name ""))
4070 (concat "; " gnus-tmp-name))))
4071 (unless (equal gnus-tmp-description "")
4072 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
4077 gnus-mime-button-line-format gnus-mime-button-line-format-alist
4078 `(,@(gnus-local-map-property gnus-mime-button-map)
4079 gnus-callback gnus-mm-display-part
4080 gnus-part ,gnus-tmp-id
4081 article-type annotation
4084 (widget-convert-button
4087 :action 'gnus-widget-press-button
4088 :button-keymap gnus-mime-button-map
4090 (lambda (widget/window &optional overlay pos)
4091 ;; Needed to properly clear the message due to a bug in
4092 ;; wid-edit (XEmacs only).
4093 (if (boundp 'help-echo-owns-message)
4094 (setq help-echo-owns-message t))
4096 "%S: %s the MIME part; %S: more options"
4097 (aref gnus-mouse-2 0)
4098 ;; XEmacs will get a single widget arg; Emacs 21 will get
4099 ;; window, overlay, position.
4100 (if (mm-handle-displayed-p
4102 (with-current-buffer (gnus-overlay-buffer overlay)
4103 (widget-get (widget-at (gnus-overlay-start overlay))
4105 (widget-get widget/window :mime-handle)))
4107 (aref gnus-down-mouse-3 0))))))
4109 (defun gnus-widget-press-button (elems el)
4110 (goto-char (widget-get elems :from))
4111 (gnus-article-press-button))
4113 (defvar gnus-displaying-mime nil)
4115 (defun gnus-display-mime (&optional ihandles)
4116 "Display the MIME parts."
4118 (save-selected-window
4119 (let ((window (get-buffer-window gnus-article-buffer))
4122 (select-window window)
4123 ;; We have to do this since selecting the window
4124 ;; may change the point. So we set the window point.
4125 (set-window-point window point)))
4126 (let* ((handles (or ihandles (mm-dissect-buffer
4127 gnus-article-no-strict-mime)
4129 buffer-read-only handle name type b e display)
4130 (when (and (not ihandles)
4131 (not gnus-displaying-mime))
4132 ;; Top-level call; we clean up.
4133 (when gnus-article-mime-handles
4134 (mm-destroy-parts gnus-article-mime-handles)
4135 (setq gnus-article-mime-handle-alist nil));; A trick.
4136 (setq gnus-article-mime-handles handles)
4137 ;; We allow users to glean info from the handles.
4138 (when gnus-article-mime-part-function
4139 (gnus-mime-part-function handles)))
4141 (or (not (stringp (car handles)))
4144 (when (and (not ihandles)
4145 (not gnus-displaying-mime))
4146 ;; Clean up for mime parts.
4148 (delete-region (point) (point-max)))
4149 (let ((gnus-displaying-mime t))
4150 (gnus-mime-display-part handles)))
4153 (narrow-to-region (point) (point-max))
4154 (gnus-treat-article nil 1 1)
4157 ;; Highlight the headers.
4161 (narrow-to-region (point-min) (point))
4162 (gnus-treat-article 'head))))))))
4164 (defvar gnus-mime-display-multipart-as-mixed nil)
4165 (defvar gnus-mime-display-multipart-alternative-as-mixed nil)
4166 (defvar gnus-mime-display-multipart-related-as-mixed nil)
4168 (defun gnus-mime-display-part (handle)
4171 ((not (stringp (car handle)))
4172 (gnus-mime-display-single handle))
4173 ;; User-defined multipart
4174 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
4175 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
4177 ;; multipart/alternative
4178 ((and (equal (car handle) "multipart/alternative")
4179 (not (or gnus-mime-display-multipart-as-mixed
4180 gnus-mime-display-multipart-alternative-as-mixed)))
4181 (let ((id (1+ (length gnus-article-mime-handle-alist))))
4182 (push (cons id handle) gnus-article-mime-handle-alist)
4183 (gnus-mime-display-alternative (cdr handle) nil nil id)))
4184 ;; multipart/related
4185 ((and (equal (car handle) "multipart/related")
4186 (not (or gnus-mime-display-multipart-as-mixed
4187 gnus-mime-display-multipart-related-as-mixed)))
4188 ;;;!!!We should find the start part, but we just default
4189 ;;;!!!to the first part.
4190 ;;(gnus-mime-display-part (cadr handle))
4191 ;;;!!! Most multipart/related is an HTML message plus images.
4192 ;;;!!! Unfortunately we are unable to let W3 display those
4193 ;;;!!! included images, so we just display it as a mixed multipart.
4194 ;;(gnus-mime-display-mixed (cdr handle))
4195 ;;;!!! No, w3 can display everything just fine.
4196 (gnus-mime-display-part (cadr handle)))
4197 ((equal (car handle) "multipart/signed")
4198 (gnus-add-wash-type 'signed)
4199 (gnus-mime-display-security handle))
4200 ((equal (car handle) "multipart/encrypted")
4201 (gnus-add-wash-type 'encrypted)
4202 (gnus-mime-display-security handle))
4203 ;; Other multiparts are handled like multipart/mixed.
4205 (gnus-mime-display-mixed (cdr handle)))))
4207 (defun gnus-mime-part-function (handles)
4208 (if (stringp (car handles))
4209 (mapcar 'gnus-mime-part-function (cdr handles))
4210 (funcall gnus-article-mime-part-function handles)))
4212 (defun gnus-mime-display-mixed (handles)
4213 (mapcar 'gnus-mime-display-part handles))
4215 (defun gnus-mime-display-single (handle)
4216 (let ((type (mm-handle-media-type handle))
4217 (ignored gnus-ignored-mime-types)
4224 (when (string-match (pop ignored) type)
4225 (throw 'ignored nil)))
4226 (if (and (setq not-attachment
4227 (and (not (mm-inline-override-p handle))
4228 (or (not (mm-handle-disposition handle))
4229 (equal (car (mm-handle-disposition handle))
4231 (mm-attachment-override-p handle))))
4232 (mm-automatic-display-p handle)
4234 (mm-inlinable-p handle)
4235 (mm-inlined-p handle))
4236 (mm-automatic-external-display-p type)))
4238 (when (equal (mm-handle-media-supertype handle) "text")
4240 (let ((id (1+ (length gnus-article-mime-handle-alist)))
4242 (push (cons id handle) gnus-article-mime-handle-alist)
4243 (when (or (not display)
4244 (not (gnus-unbuttonized-mime-type-p type)))
4245 ;(gnus-article-insert-newline)
4246 (gnus-insert-mime-button
4247 handle id (list (or display (and not-attachment text))))
4248 (gnus-article-insert-newline)
4249 ;(gnus-article-insert-newline)
4250 ;; Remember modify the number of forward lines.
4258 (let ((mail-parse-charset gnus-newsgroup-charset)
4259 (mail-parse-ignored-charsets
4260 (save-excursion (condition-case ()
4261 (set-buffer gnus-summary-buffer)
4263 gnus-newsgroup-ignored-charsets)))
4264 (mm-display-part handle t))
4265 (goto-char (point-max)))
4266 ((and text not-attachment)
4270 (gnus-article-insert-newline)
4271 (mm-insert-inline handle (mm-get-part handle))
4272 (goto-char (point-max))))
4276 (narrow-to-region beg (point))
4279 (gnus-article-mime-total-parts)
4280 (mm-handle-media-type handle)))))))))
4282 (defun gnus-unbuttonized-mime-type-p (type)
4283 "Say whether TYPE is to be unbuttonized."
4284 (unless gnus-inhibit-mime-unbuttonizing
4286 (let ((types gnus-unbuttonized-mime-types))
4288 (when (string-match (pop types) type)
4289 (throw 'found t)))))
4291 (let ((types gnus-buttonized-mime-types))
4293 (when (string-match (pop types) type)
4294 (throw 'found t)))))))))
4296 (defun gnus-article-insert-newline ()
4297 "Insert a newline, but mark it as undeletable."
4298 (gnus-put-text-property
4299 (point) (progn (insert "\n") (point)) 'gnus-undeletable t))
4301 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
4302 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
4305 handle buffer-read-only from props begend not-pref)
4306 (save-window-excursion
4309 (narrow-to-region (car ibegend)
4312 (goto-char (car ibegend))
4315 (delete-region (point-min) (point-max))
4316 (mm-remove-parts handles))
4317 (setq begend (list (point-marker)))
4319 (unless (setq not-pref (cadr (member preferred ihandles)))
4320 (setq not-pref (car ihandles)))
4323 (not (gnus-unbuttonized-mime-type-p
4324 "multipart/alternative")))
4325 (gnus-add-text-properties
4328 (insert (format "%d. " id))
4332 (unless ,(not ibegend)
4333 (setq gnus-article-mime-handle-alist
4334 ',gnus-article-mime-handle-alist))
4335 (gnus-mime-display-alternative
4336 ',ihandles ',not-pref ',begend ,id))
4337 ,@(gnus-local-map-property gnus-mime-button-map)
4338 ,gnus-mouse-face-prop ,gnus-article-mouse-face
4339 face ,gnus-article-button-face
4342 (widget-convert-button 'link from (point)
4343 :action 'gnus-widget-press-button
4344 :button-keymap gnus-widget-button-keymap)
4346 (while (setq handle (pop handles))
4347 (gnus-add-text-properties
4350 (insert (format "(%c) %-18s"
4351 (if (equal handle preferred) ?* ? )
4352 (mm-handle-media-type handle)))
4356 (unless ,(not ibegend)
4357 (setq gnus-article-mime-handle-alist
4358 ',gnus-article-mime-handle-alist))
4359 (gnus-mime-display-alternative
4360 ',ihandles ',handle ',begend ,id))
4361 ,@(gnus-local-map-property gnus-mime-button-map)
4362 ,gnus-mouse-face-prop ,gnus-article-mouse-face
4363 face ,gnus-article-button-face
4366 (widget-convert-button 'link from (point)
4367 :action 'gnus-widget-press-button
4368 :button-keymap gnus-widget-button-keymap)
4372 (if (stringp (car preferred))
4373 (gnus-display-mime preferred)
4374 (let ((mail-parse-charset gnus-newsgroup-charset)
4375 (mail-parse-ignored-charsets
4376 (save-excursion (set-buffer gnus-summary-buffer)
4377 gnus-newsgroup-ignored-charsets)))
4378 (mm-display-part preferred)
4382 (narrow-to-region (car begend) (point-max))
4384 nil (length gnus-article-mime-handle-alist)
4385 (gnus-article-mime-total-parts)
4386 (mm-handle-media-type handle))))))
4387 (goto-char (point-max))
4388 (setcdr begend (point-marker)))))
4390 (goto-char point))))
4392 (defconst gnus-article-wash-status-strings
4393 (let ((alist '((cite "c" "Possible hidden citation text"
4394 " " "All citation text visible")
4395 (headers "h" "Hidden headers"
4396 " " "All headers visible.")
4397 (pgp "p" "Encrypted or signed message status hidden"
4398 " " "No hidden encryption nor digital signature status")
4399 (signature "s" "Signature has been hidden"
4400 " " "Signature is visible")
4401 (overstrike "o" "Overstrike (^H) characters applied"
4402 " " "No overstrike characters applied")
4403 (emphasis "e" "/*_Emphasis_*/ characters applied"
4404 " " "No /*_emphasis_*/ characters applied")))
4406 (dolist (entry alist result)
4407 (let ((key (nth 0 entry))
4408 (on (copy-sequence (nth 1 entry)))
4409 (on-help (nth 2 entry))
4410 (off (copy-sequence (nth 3 entry)))
4411 (off-help (nth 4 entry)))
4412 (put-text-property 0 1 'help-echo on-help on)
4413 (put-text-property 0 1 'help-echo off-help off)
4414 (push (list key on off) result))))
4415 "Alist of strings describing wash status in the mode line.
4416 Each entry has the form (KEY ON OF), where the KEY is a symbol
4417 representing the particular washing function, ON is the string to use
4418 in the article mode line when the washing function is active, and OFF
4419 is the string to use when it is inactive.")
4421 (defun gnus-article-wash-status-entry (key value)
4422 (let ((entry (assoc key gnus-article-wash-status-strings)))
4423 (if value (nth 1 entry) (nth 2 entry))))
4425 (defun gnus-article-wash-status ()
4426 "Return a string which display status of article washing."
4428 (set-buffer gnus-article-buffer)
4429 (let ((cite (memq 'cite gnus-article-wash-types))
4430 (headers (memq 'headers gnus-article-wash-types))
4431 (boring (memq 'boring-headers gnus-article-wash-types))
4432 (pgp (memq 'pgp gnus-article-wash-types))
4433 (pem (memq 'pem gnus-article-wash-types))
4434 (signed (memq 'signed gnus-article-wash-types))
4435 (encrypted (memq 'encrypted gnus-article-wash-types))
4436 (signature (memq 'signature gnus-article-wash-types))
4437 (overstrike (memq 'overstrike gnus-article-wash-types))
4438 (emphasis (memq 'emphasis gnus-article-wash-types)))
4440 (gnus-article-wash-status-entry 'cite cite)
4441 (gnus-article-wash-status-entry 'headers (or headers boring))
4442 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
4443 (gnus-article-wash-status-entry 'signature signature)
4444 (gnus-article-wash-status-entry 'overstrike overstrike)
4445 (gnus-article-wash-status-entry 'emphasis emphasis)))))
4447 (defun gnus-add-wash-type (type)
4448 "Add a washing of TYPE to the current status."
4449 (add-to-list 'gnus-article-wash-types type))
4451 (defun gnus-delete-wash-type (type)
4452 "Add a washing of TYPE to the current status."
4453 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
4455 (defun gnus-add-image (category image)
4456 "Add IMAGE of CATEGORY to the list of displayed images."
4457 (let ((entry (assq category gnus-article-image-alist)))
4459 (setq entry (list category))
4460 (push entry gnus-article-image-alist))
4461 (nconc entry (list image))))
4463 (defun gnus-delete-images (category)
4464 "Delete all images in CATEGORY."
4465 (let ((entry (assq category gnus-article-image-alist)))
4466 (dolist (image (cdr entry))
4467 (gnus-remove-image image))
4468 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
4469 (gnus-delete-wash-type category)))
4471 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
4473 (defun gnus-article-maybe-hide-headers ()
4474 "Hide unwanted headers if `gnus-have-all-headers' is nil.
4475 Provided for backwards compatibility."
4476 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
4477 (not (save-excursion (set-buffer gnus-summary-buffer)
4478 gnus-have-all-headers)))
4479 (not gnus-inhibit-hiding))
4480 (gnus-article-hide-headers)))
4484 (defun gnus-output-to-file (file-name)
4485 "Append the current article to a file named FILE-NAME."
4486 (let ((artbuf (current-buffer)))
4488 (insert-buffer-substring artbuf)
4489 ;; Append newline at end of the buffer as separator, and then
4491 (goto-char (point-max))
4493 (let ((file-name-coding-system nnmail-pathname-coding-system))
4494 (mm-append-to-file (point-min) (point-max) file-name))
4497 (defun gnus-narrow-to-page (&optional arg)
4498 "Narrow the article buffer to a page.
4499 If given a numerical ARG, move forward ARG pages."
4501 (setq arg (if arg (prefix-numeric-value arg) 0))
4503 (set-buffer gnus-article-buffer)
4504 (goto-char (point-min))
4506 ;; Remove any old next/prev buttons.
4507 (when (gnus-visual-p 'page-marker)
4508 (let ((buffer-read-only nil))
4509 (gnus-remove-text-with-property 'gnus-prev)
4510 (gnus-remove-text-with-property 'gnus-next)))
4513 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
4515 (re-search-forward page-delimiter nil 'move arg)))
4516 (goto-char (match-end 0)))
4519 (if (re-search-forward page-delimiter nil 'move)
4522 (when (and (gnus-visual-p 'page-marker)
4523 (not (= (point-min) 1)))
4525 (goto-char (point-min))
4526 (gnus-insert-prev-page-button)))
4527 (when (and (gnus-visual-p 'page-marker)
4528 (< (+ (point-max) 2) (buffer-size)))
4530 (goto-char (point-max))
4531 (gnus-insert-next-page-button)))))
4533 ;; Article mode commands
4535 (defun gnus-article-goto-next-page ()
4536 "Show the next page of the article."
4538 (when (gnus-article-next-page)
4539 (goto-char (point-min))
4540 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
4542 (defun gnus-article-goto-prev-page ()
4543 "Show the next page of the article."
4545 (if (bobp) (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
4546 (gnus-article-prev-page nil)))
4548 (defun gnus-article-next-page (&optional lines)
4549 "Show the next page of the current article.
4550 If end of article, return non-nil. Otherwise return nil.
4551 Argument LINES specifies lines to be scrolled up."
4553 (move-to-window-line -1)
4556 (and (pos-visible-in-window-p) ;Not continuation line.
4558 ;; Nothing in this page.
4559 (if (or (not gnus-page-broken)
4562 (widen) (forward-line 1) (eobp)))) ;Real end-of-buffer?
4564 (gnus-narrow-to-page 1) ;Go to next page.
4566 ;; More in this page.
4567 (let ((scroll-in-place nil))
4571 ;; Long lines may cause an end-of-buffer error.
4572 (goto-char (point-max)))))
4573 (move-to-window-line 0)
4576 (defun gnus-article-prev-page (&optional lines)
4577 "Show previous page of current article.
4578 Argument LINES specifies lines to be scrolled down."
4580 (move-to-window-line 0)
4581 (if (and gnus-page-broken
4583 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
4585 (gnus-narrow-to-page -1) ;Go to previous page.
4586 (goto-char (point-max))
4588 (let ((scroll-in-place nil))
4592 (beginning-of-buffer
4593 (goto-char (point-min))))
4594 (move-to-window-line 0)))))
4596 (defun gnus-article-refer-article ()
4597 "Read article specified by message-id around point."
4599 (let ((point (point)))
4600 (search-forward ">" nil t) ;Move point to end of "<....>".
4601 (if (re-search-backward "\\(<[^<> \t\n]+>\\)" nil t)
4602 (let ((message-id (match-string 1)))
4604 (set-buffer gnus-summary-buffer)
4605 (gnus-summary-refer-article message-id))
4607 (error "No references around point"))))
4609 (defun gnus-article-show-summary ()
4610 "Reconfigure windows to show summary buffer."
4612 (if (not (gnus-buffer-live-p gnus-summary-buffer))
4613 (error "There is no summary buffer for this article buffer")
4614 (gnus-article-set-globals)
4615 (gnus-configure-windows 'article)
4616 (gnus-summary-goto-subject gnus-current-article)
4617 (gnus-summary-position-point)))
4619 (defun gnus-article-describe-briefly ()
4620 "Describe article mode commands briefly."
4622 (gnus-message 6 (substitute-command-keys "\\<gnus-article-mode-map>\\[gnus-article-goto-next-page]:Next page \\[gnus-article-goto-prev-page]:Prev page \\[gnus-article-show-summary]:Show summary \\[gnus-info-find-node]:Run Info \\[gnus-article-describe-briefly]:This help")))
4624 (defun gnus-article-summary-command ()
4625 "Execute the last keystroke in the summary buffer."
4627 (let ((obuf (current-buffer))
4628 (owin (current-window-configuration))
4630 (switch-to-buffer gnus-article-current-summary 'norecord)
4631 (setq func (lookup-key (current-local-map) (this-command-keys)))
4632 (call-interactively func)
4634 (set-window-configuration owin)
4635 (set-window-point (get-buffer-window (current-buffer)) (point))))
4637 (defun gnus-article-summary-command-nosave ()
4638 "Execute the last keystroke in the summary buffer."
4641 (pop-to-buffer gnus-article-current-summary 'norecord)
4642 (setq func (lookup-key (current-local-map) (this-command-keys)))
4643 (call-interactively func)))
4645 (defun gnus-article-check-buffer ()
4646 "Beep if not in an article buffer."
4647 (unless (equal major-mode 'gnus-article-mode)
4648 (error "Command invoked outside of a Gnus article buffer")))
4650 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
4651 "Read a summary buffer key sequence and execute it from the article buffer."
4653 (gnus-article-check-buffer)
4655 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
4656 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
4657 "=" "^" "\M-^" "|"))
4663 '("n" "Gn" "p" "Gp"))
4666 (set-buffer gnus-article-current-summary)
4667 (let (gnus-pick-mode)
4668 (push (or key last-command-event) unread-command-events)
4669 (setq keys (if (featurep 'xemacs)
4670 (events-to-keys (read-key-sequence nil))
4671 (read-key-sequence nil)))))
4675 (if (or (member keys nosaves)
4676 (member keys nosave-but-article)
4677 (member keys nosave-in-article))
4679 (save-window-excursion
4680 (pop-to-buffer gnus-article-current-summary 'norecord)
4681 ;; We disable the pick minor mode commands.
4682 (let (gnus-pick-mode)
4683 (setq func (lookup-key (current-local-map) keys))))
4687 (unless (member keys nosave-in-article)
4688 (set-buffer gnus-article-current-summary))
4689 (call-interactively func)
4690 (setq new-sum-point (point)))
4691 (when (member keys nosave-but-article)
4692 (pop-to-buffer gnus-article-buffer 'norecord)))
4693 ;; These commands should restore window configuration.
4694 (let ((obuf (current-buffer))
4695 (owin (current-window-configuration))
4697 (summary gnus-article-current-summary)
4698 func in-buffer selected)
4699 (if not-restore-window
4700 (pop-to-buffer summary 'norecord)
4701 (switch-to-buffer summary 'norecord))
4702 (setq in-buffer (current-buffer))
4703 ;; We disable the pick minor mode commands.
4704 (if (and (setq func (let (gnus-pick-mode)
4705 (lookup-key (current-local-map) keys)))
4708 (call-interactively func)
4709 (setq new-sum-point (point))
4710 (when (eq in-buffer (current-buffer))
4711 (setq selected (gnus-summary-select-article))
4713 (unless not-restore-window
4714 (set-window-configuration owin))
4715 (when (eq selected 'old)
4717 (set-window-start (get-buffer-window (current-buffer))
4719 (set-window-point (get-buffer-window (current-buffer))
4721 (let ((win (get-buffer-window gnus-article-current-summary)))
4723 (set-window-point win new-sum-point)))) )
4724 (switch-to-buffer gnus-article-buffer)
4727 (defun gnus-article-describe-key (key)
4728 "Display documentation of the function invoked by KEY. KEY is a string."
4729 (interactive "kDescribe key: ")
4730 (gnus-article-check-buffer)
4731 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
4733 (set-buffer gnus-article-current-summary)
4734 (let (gnus-pick-mode)
4735 (if (featurep 'xemacs)
4737 (push (elt key 0) unread-command-events)
4738 (setq key (events-to-keys
4739 (read-key-sequence "Describe key: "))))
4740 (setq unread-command-events
4742 (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
4743 (string-to-list key)))
4744 (setq key (read-key-sequence "Describe key: "))))
4746 (describe-key key)))
4748 (defun gnus-article-describe-key-briefly (key &optional insert)
4749 "Display documentation of the function invoked by KEY. KEY is a string."
4750 (interactive "kDescribe key: \nP")
4751 (gnus-article-check-buffer)
4752 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
4754 (set-buffer gnus-article-current-summary)
4755 (let (gnus-pick-mode)
4756 (if (featurep 'xemacs)
4758 (push (elt key 0) unread-command-events)
4759 (setq key (events-to-keys
4760 (read-key-sequence "Describe key: "))))
4761 (setq unread-command-events
4763 (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
4764 (string-to-list key)))
4765 (setq key (read-key-sequence "Describe key: "))))
4766 (describe-key-briefly key insert))
4767 (describe-key-briefly key insert)))
4769 (defun gnus-article-reply-with-original (&optional wide)
4770 "Start composing a reply mail to the current message.
4771 The text in the region will be yanked. If the region isn't active,
4772 the entire article will be yanked."
4774 (let ((article (cdr gnus-article-current)) cont)
4776 (gnus-summary-reply (list (list article)) wide)
4777 (setq cont (buffer-substring (point) (mark t)))
4778 ;; Deactivate active regions.
4779 (when (and (boundp 'transient-mark-mode)
4780 transient-mark-mode)
4781 (setq mark-active nil))
4783 (list (list article cont)) wide))))
4785 (defun gnus-article-followup-with-original ()
4786 "Compose a followup to the current article.
4787 The text in the region will be yanked. If the region isn't active,
4788 the entire article will be yanked."
4790 (let ((article (cdr gnus-article-current))
4793 (gnus-summary-followup (list (list article)))
4794 (setq cont (buffer-substring (point) (mark t)))
4795 ;; Deactivate active regions.
4796 (when (and (boundp 'transient-mark-mode)
4797 transient-mark-mode)
4798 (setq mark-active nil))
4799 (gnus-summary-followup
4800 (list (list article cont))))))
4802 (defun gnus-article-hide (&optional arg force)
4803 "Hide all the gruft in the current article.
4804 This means that PGP stuff, signatures, cited text and (some)
4805 headers will be hidden.
4806 If given a prefix, show the hidden text instead."
4807 (interactive (append (gnus-article-hidden-arg) (list 'force)))
4808 (gnus-article-hide-headers arg)
4809 (gnus-article-hide-list-identifiers arg)
4810 (gnus-article-hide-pgp arg)
4811 (gnus-article-hide-citation-maybe arg force)
4812 (gnus-article-hide-signature arg))
4814 (defun gnus-article-maybe-highlight ()
4815 "Do some article highlighting if article highlighting is requested."
4816 (when (gnus-visual-p 'article-highlight 'highlight)
4817 (gnus-article-highlight-some)))
4819 (defun gnus-check-group-server ()
4820 ;; Make sure the connection to the server is alive.
4821 (unless (gnus-server-opened
4822 (gnus-find-method-for-group gnus-newsgroup-name))
4823 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
4824 (gnus-request-group gnus-newsgroup-name t)))
4827 (autoload 'nneething-get-file-name "nneething"))
4829 (defun gnus-request-article-this-buffer (article group)
4830 "Get an article and insert it into this buffer."
4831 (let (do-update-line sparse-header)
4835 (gnus-kill-all-overlays)
4836 (setq group (or group gnus-newsgroup-name))
4838 ;; Using `gnus-request-article' directly will insert the article into
4839 ;; `nntp-server-buffer' - so we'll save some time by not having to
4840 ;; copy it from the server buffer into the article buffer.
4842 ;; We only request an article by message-id when we do not have the
4843 ;; headers for it, so we'll have to get those.
4844 (when (stringp article)
4845 (gnus-read-header article))
4847 ;; If the article number is negative, that means that this article
4848 ;; doesn't belong in this newsgroup (possibly), so we find its
4849 ;; message-id and request it by id instead of number.
4850 (when (and (numberp article)
4852 (get-buffer gnus-summary-buffer)
4853 (gnus-buffer-exists-p gnus-summary-buffer))
4855 (set-buffer gnus-summary-buffer)
4856 (let ((header (gnus-summary-article-header article)))
4859 ((memq article gnus-newsgroup-sparse)
4860 ;; This is a sparse gap article.
4861 (setq do-update-line article)
4862 (setq article (mail-header-id header))
4863 (setq sparse-header (gnus-read-header article))
4864 (setq gnus-newsgroup-sparse
4865 (delq article gnus-newsgroup-sparse)))
4867 ;; It's a real article.
4868 (setq article (mail-header-id header)))
4870 ;; It is an extracted pseudo-article.
4871 (setq article 'pseudo)
4872 (gnus-request-pseudo-article header))))
4874 (let ((method (gnus-find-method-for-group
4875 gnus-newsgroup-name)))
4876 (when (and (eq (car method) 'nneething)
4878 (let ((dir (nneething-get-file-name
4879 (mail-header-id header))))
4880 (when (and (stringp dir)
4881 (file-directory-p dir))
4882 (setq article 'nneething)
4883 (gnus-group-enter-directory dir))))))))
4886 ;; Refuse to select canceled articles.
4887 ((and (numberp article)
4889 (get-buffer gnus-summary-buffer)
4890 (gnus-buffer-exists-p gnus-summary-buffer)
4891 (eq (cdr (save-excursion
4892 (set-buffer gnus-summary-buffer)
4893 (assq article gnus-newsgroup-reads)))
4894 gnus-canceled-mark))
4896 ;; We first check `gnus-original-article-buffer'.
4897 ((and (get-buffer gnus-original-article-buffer)
4900 (set-buffer gnus-original-article-buffer)
4901 (and (equal (car gnus-original-article) group)
4902 (eq (cdr gnus-original-article) article))))
4903 (insert-buffer-substring gnus-original-article-buffer)
4905 ;; Check the backlog.
4906 ((and gnus-keep-backlog
4907 (gnus-backlog-request-article group article (current-buffer)))
4909 ;; Check asynchronous pre-fetch.
4910 ((gnus-async-request-fetched-article group article (current-buffer))
4911 (gnus-async-prefetch-next group article gnus-summary-buffer)
4912 (when (and (numberp article) gnus-keep-backlog)
4913 (gnus-backlog-enter-article group article (current-buffer)))
4916 ((and gnus-use-cache
4918 (gnus-cache-request-article article group))
4920 ;; Check the agent cache.
4921 ((and gnus-agent gnus-agent-cache gnus-plugged
4923 (gnus-agent-request-article article group))
4925 ;; Get the article and put into the article buffer.
4926 ((or (stringp article)
4928 (let ((gnus-override-method gnus-override-method)
4929 (methods (and (stringp article)
4930 gnus-refer-article-method))
4932 (buffer-read-only nil))
4933 (if (or (not (listp methods))
4934 (and (symbolp (car methods))
4935 (assq (car methods) nnoo-definition-alist)))
4936 (setq methods (list methods)))
4937 (when (and (null gnus-override-method)
4939 (setq gnus-override-method (pop methods)))
4941 (when (eq gnus-override-method 'current)
4942 (setq gnus-override-method
4943 (with-current-buffer gnus-summary-buffer
4944 gnus-current-select-method)))
4946 (gnus-kill-all-overlays)
4947 (let ((gnus-newsgroup-name group))
4948 (gnus-check-group-server))
4949 (when (gnus-request-article article group (current-buffer))
4950 (when (numberp article)
4951 (gnus-async-prefetch-next group article
4952 gnus-summary-buffer)
4953 (when gnus-keep-backlog
4954 (gnus-backlog-enter-article
4955 group article (current-buffer))))
4956 (setq result 'article))
4959 (setq gnus-override-method (pop methods))
4960 (setq result 'done))))
4961 (and (eq result 'article) 'article)))
4965 ;; Associate this article with the current summary buffer.
4966 (setq gnus-article-current-summary gnus-summary-buffer)
4968 ;; Take the article from the original article buffer
4969 ;; and place it in the buffer it's supposed to be in.
4970 (when (and (get-buffer gnus-article-buffer)
4971 (equal (buffer-name (current-buffer))
4972 (buffer-name (get-buffer gnus-article-buffer))))
4974 (if (get-buffer gnus-original-article-buffer)
4975 (set-buffer gnus-original-article-buffer)
4976 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
4977 (buffer-disable-undo)
4978 (setq major-mode 'gnus-original-article-mode)
4979 (setq buffer-read-only t))
4980 (let (buffer-read-only)
4982 (insert-buffer-substring gnus-article-buffer))
4983 (setq gnus-original-article (cons group article)))
4986 (run-hooks 'gnus-article-decode-hook)
4987 ;; Mark article as decoded or not.
4988 (setq gnus-article-decoded-p gnus-article-decode-hook))
4990 ;; Update sparse articles.
4991 (when (and do-update-line
4992 (or (numberp article)
4994 (let ((buf (current-buffer)))
4995 (set-buffer gnus-summary-buffer)
4996 (gnus-summary-update-article do-update-line sparse-header)
4997 (gnus-summary-goto-subject do-update-line nil t)
4998 (set-window-point (gnus-get-buffer-window (current-buffer) t)
5000 (set-buffer buf))))))
5006 (defcustom gnus-article-edit-mode-hook nil
5007 "Hook run in article edit mode buffers."
5008 :group 'gnus-article-various
5011 (defvar gnus-article-edit-done-function nil)
5013 (defvar gnus-article-edit-mode-map nil)
5015 ;; Should we be using derived.el for this?
5016 (unless gnus-article-edit-mode-map
5017 (setq gnus-article-edit-mode-map (make-sparse-keymap))
5018 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
5020 (gnus-define-keys gnus-article-edit-mode-map
5021 "\C-c\C-c" gnus-article-edit-done
5022 "\C-c\C-k" gnus-article-edit-exit)
5024 (gnus-define-keys (gnus-article-edit-wash-map
5025 "\C-c\C-w" gnus-article-edit-mode-map)
5026 "f" gnus-article-edit-full-stops))
5028 (define-derived-mode gnus-article-edit-mode text-mode "Article Edit"
5029 "Major mode for editing articles.
5030 This is an extended text-mode.
5032 \\{gnus-article-edit-mode-map}"
5033 (make-local-variable 'gnus-article-edit-done-function)
5034 (make-local-variable 'gnus-prev-winconf)
5035 (set (make-local-variable 'font-lock-defaults)
5036 '(message-font-lock-keywords t))
5037 (setq buffer-read-only nil)
5038 (buffer-enable-undo)
5041 (defun gnus-article-edit (&optional force)
5042 "Edit the current article.
5043 This will have permanent effect only in mail groups.
5044 If FORCE is non-nil, allow editing of articles even in read-only
5047 (when (and (not force)
5048 (gnus-group-read-only-p))
5049 (error "The current newsgroup does not support article editing"))
5050 (gnus-article-date-original)
5051 (gnus-article-edit-article
5053 `(lambda (no-highlight)
5055 (gnus-summary-edit-article-done
5056 ,(or (mail-header-references gnus-current-headers) "")
5057 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
5059 (defun gnus-article-edit-article (start-func exit-func)
5060 "Start editing the contents of the current article buffer."
5061 (let ((winconf (current-window-configuration)))
5062 (set-buffer gnus-article-buffer)
5063 (gnus-article-edit-mode)
5064 (funcall start-func)
5065 (set-buffer-modified-p nil)
5066 (gnus-configure-windows 'edit-article)
5067 (setq gnus-article-edit-done-function exit-func)
5068 (setq gnus-prev-winconf winconf)
5069 (gnus-message 6 "C-c C-c to end edits")))
5071 (defun gnus-article-edit-done (&optional arg)
5072 "Update the article edits and exit."
5074 (let ((func gnus-article-edit-done-function)
5075 (buf (current-buffer))
5076 (start (window-start)))
5077 ;; We remove all text props from the article buffer.
5079 (buffer-substring-no-properties (point-min) (point-max)))
5083 (let ((winconf gnus-prev-winconf))
5085 (set-window-configuration winconf)
5086 ;; Tippy-toe some to make sure that point remains where it was.
5087 (save-current-buffer
5089 (set-window-start (get-buffer-window (current-buffer)) start)
5093 (let ((buffer-read-only nil))
5095 ;; The cache and backlog have to be flushed somewhat.
5096 (when gnus-keep-backlog
5097 (gnus-backlog-remove-article
5098 (car gnus-article-current) (cdr gnus-article-current)))
5099 ;; Flush original article as well.
5101 (when (get-buffer gnus-original-article-buffer)
5102 (set-buffer gnus-original-article-buffer)
5103 (setq gnus-original-article nil)))
5104 (when gnus-use-cache
5105 (gnus-cache-update-article
5106 (car gnus-article-current) (cdr gnus-article-current))))
5108 (set-window-start (get-buffer-window buf) start)
5109 (set-window-point (get-buffer-window buf) (point))))
5111 (defun gnus-article-edit-exit ()
5112 "Exit the article editing without updating."
5114 (when (or (not (buffer-modified-p))
5115 (yes-or-no-p "Article modified; kill anyway? "))
5116 (let ((curbuf (current-buffer))
5118 (window-start (window-start)))
5120 (if (gnus-buffer-live-p gnus-original-article-buffer)
5121 (insert-buffer gnus-original-article-buffer))
5122 (let ((winconf gnus-prev-winconf))
5124 (set-window-configuration winconf)
5125 ;; Tippy-toe some to make sure that point remains where it was.
5126 (save-current-buffer
5128 (set-window-start (get-buffer-window (current-buffer)) window-start)
5131 (defun gnus-article-edit-full-stops ()
5132 "Interactively repair spacing at end of sentences."
5135 (goto-char (point-min))
5136 (search-forward-regexp "^$" nil t)
5137 (let ((case-fold-search nil))
5138 (query-replace-regexp "\\([.!?][])}]* \\)\\([[({A-Z]\\)" "\\1 \\2"))))
5141 ;;; Article highlights
5144 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
5146 ;;; Internal Variables:
5148 (defcustom gnus-button-url-regexp "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?\\([-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,]\\|\\w\\)+\\([-a-zA-Z0-9_=#$@~`%&*+|\\/]\\|\\w\\)\\)"
5149 "Regular expression that matches URLs."
5150 :group 'gnus-article-buttons
5153 (defcustom gnus-button-alist
5154 `(("<\\(url:[>\n\t ]*?\\)?\\(nntp\\|news\\):[>\n\t ]*\\([^>\n\t ]*@[^>\n\t ]*\\)>"
5155 0 t gnus-button-handle-news 3)
5156 ("\\b\\(nntp\\|news\\):\\([^>\n\t ]*@[^>)!;:,\n\t ]*\\)" 0 t
5157 gnus-button-handle-news 2)
5158 ("\\(\\b<\\(url:[>\n\t ]*\\)?news:[>\n\t ]*\\(//\\)?\\([^>\n\t ]*\\)>\\)"
5160 gnus-button-fetch-group 4)
5161 ("\\bnews:\\(//\\)?\\([^'\">\n\t ]+\\)" 0 t gnus-button-fetch-group 2)
5162 ("\\bin\\( +article\\| +message\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)" 2
5163 t gnus-button-message-id 3)
5164 ("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>" 0 t gnus-url-mailto 2)
5165 ("mailto:\\([-a-zA-Z.@_+0-9%=?]+\\)" 0 t gnus-url-mailto 1)
5166 ("\\bmailto:\\([^ \n\t]+\\)" 0 t gnus-url-mailto 1)
5168 ("\\binfo:\\(//\\)?\\([^'\">\n\t ]+\\)" 0 t
5169 gnus-button-handle-info 2)
5170 ;; This is how URLs _should_ be embedded in text...
5171 ("<URL: *\\([^<>]*\\)>" 1 t gnus-button-embedded-url 1)
5173 (,gnus-button-url-regexp 0 t browse-url 0))
5174 "*Alist of regexps matching buttons in article bodies.
5176 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
5177 REGEXP: is the string matching text around the button,
5178 BUTTON: is the number of the regexp grouping actually matching the button,
5179 FORM: is a lisp expression which must eval to true for the button to
5181 CALLBACK: is the function to call when the user push this button, and each
5182 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
5184 CALLBACK can also be a variable, in that case the value of that
5185 variable it the real callback function."
5186 :group 'gnus-article-buttons
5187 :type '(repeat (list regexp
5188 (integer :tag "Button")
5190 (function :tag "Callback")
5193 (integer :tag "Regexp group")))))
5195 (defcustom gnus-header-button-alist
5196 `(("^\\(References\\|Message-I[Dd]\\):" "<[^<>]+>"
5197 0 t gnus-button-message-id 0)
5198 ("^\\(From\\|Reply-To\\):" ": *\\(.+\\)$" 1 t gnus-button-reply 1)
5199 ("^\\(Cc\\|To\\):" "[^ \t\n<>,()\"]+@[^ \t\n<>,()\"]+"
5200 0 t gnus-button-mailto 0)
5201 ("^X-[Uu][Rr][Ll]:" ,gnus-button-url-regexp 0 t browse-url 0)
5202 ("^Subject:" ,gnus-button-url-regexp 0 t browse-url 0)
5203 ("^[^:]+:" ,gnus-button-url-regexp 0 t browse-url 0)
5204 ("^[^:]+:" "\\bmailto:\\([-a-zA-Z.@_+0-9%=?]+\\)" 0 t gnus-url-mailto 1)
5205 ("^[^:]+:" "\\(<\\(url: \\)?news:\\([^>\n ]*\\)>\\)" 1 t
5206 gnus-button-message-id 3))
5207 "*Alist of headers and regexps to match buttons in article heads.
5209 This alist is very similar to `gnus-button-alist', except that each
5210 alist has an additional HEADER element first in each entry:
5212 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
5214 HEADER is a regexp to match a header. For a fuller explanation, see
5215 `gnus-button-alist'."
5216 :group 'gnus-article-buttons
5217 :group 'gnus-article-headers
5218 :type '(repeat (list (regexp :tag "Header")
5220 (integer :tag "Button")
5222 (function :tag "Callback")
5225 (integer :tag "Regexp group")))))
5227 (defvar gnus-button-regexp nil)
5228 (defvar gnus-button-marker-list nil)
5229 ;; Regexp matching any of the regexps from `gnus-button-alist'.
5231 (defvar gnus-button-last nil)
5232 ;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
5236 (defun gnus-article-push-button (event)
5237 "Check text under the mouse pointer for a callback function.
5238 If the text under the mouse pointer has a `gnus-callback' property,
5239 call it with the value of the `gnus-data' text property."
5241 (set-buffer (window-buffer (posn-window (event-start event))))
5242 (let* ((pos (posn-point (event-start event)))
5243 (data (get-text-property pos 'gnus-data))
5244 (fun (get-text-property pos 'gnus-callback)))
5247 (funcall fun data))))
5249 (defun gnus-article-press-button ()
5250 "Check text at point for a callback function.
5251 If the text at point has a `gnus-callback' property,
5252 call it with the value of the `gnus-data' text property."
5254 (let* ((data (get-text-property (point) 'gnus-data))
5255 (fun (get-text-property (point) 'gnus-callback)))
5257 (funcall fun data))))
5259 (defun gnus-article-highlight (&optional force)
5260 "Highlight current article.
5261 This function calls `gnus-article-highlight-headers',
5262 `gnus-article-highlight-citation',
5263 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
5264 do the highlighting. See the documentation for those functions."
5265 (interactive (list 'force))
5266 (gnus-article-highlight-headers)
5267 (gnus-article-highlight-citation force)
5268 (gnus-article-highlight-signature)
5269 (gnus-article-add-buttons force)
5270 (gnus-article-add-buttons-to-head))
5272 (defun gnus-article-highlight-some (&optional force)
5273 "Highlight current article.
5274 This function calls `gnus-article-highlight-headers',
5275 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
5276 do the highlighting. See the documentation for those functions."
5277 (interactive (list 'force))
5278 (gnus-article-highlight-headers)
5279 (gnus-article-highlight-signature)
5280 (gnus-article-add-buttons))
5282 (defun gnus-article-highlight-headers ()
5283 "Highlight article headers as specified by `gnus-header-face-alist'."
5286 (set-buffer gnus-article-buffer)
5288 (let ((alist gnus-header-face-alist)
5289 (buffer-read-only nil)
5290 (case-fold-search t)
5291 (inhibit-point-motion-hooks t)
5292 entry regexp header-face field-face from hpoints fpoints)
5293 (article-narrow-to-head)
5294 (while (setq entry (pop alist))
5295 (goto-char (point-min))
5296 (setq regexp (concat "^\\("
5297 (if (string-equal "" (nth 0 entry))
5301 header-face (nth 1 entry)
5302 field-face (nth 2 entry))
5303 (while (and (re-search-forward regexp nil t)
5307 (unless (search-forward ":" nil t)
5309 (when (and header-face
5310 (not (memq (point) hpoints)))
5311 (push (point) hpoints)
5312 (gnus-put-text-property from (point) 'face header-face))
5313 (when (and field-face
5314 (not (memq (setq from (point)) fpoints)))
5316 (if (re-search-forward "^[^ \t]" nil t)
5318 (goto-char (point-max)))
5319 (gnus-put-text-property from (point) 'face field-face))))))))
5321 (defun gnus-article-highlight-signature ()
5322 "Highlight the signature in an article.
5323 It does this by highlighting everything after
5324 `gnus-signature-separator' using `gnus-signature-face'."
5327 (set-buffer gnus-article-buffer)
5328 (let ((buffer-read-only nil)
5329 (inhibit-point-motion-hooks t))
5331 (when (and gnus-signature-face
5332 (gnus-article-narrow-to-signature))
5333 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max))
5334 'face gnus-signature-face)
5336 (gnus-article-search-signature)
5337 (let ((start (match-beginning 0))
5338 (end (set-marker (make-marker) (1+ (match-end 0)))))
5339 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
5342 (defun gnus-button-in-region-p (b e prop)
5343 "Say whether PROP exists in the region."
5344 (text-property-not-all b e prop nil))
5346 (defun gnus-article-add-buttons (&optional force)
5347 "Find external references in the article and make buttons of them.
5348 \"External references\" are things like Message-IDs and URLs, as
5349 specified by `gnus-button-alist'."
5350 (interactive (list 'force))
5352 (set-buffer gnus-article-buffer)
5353 (let ((buffer-read-only nil)
5354 (inhibit-point-motion-hooks t)
5355 (case-fold-search t)
5356 (alist gnus-button-alist)
5358 ;; Remove all old markers.
5359 (let (marker entry new-list)
5360 (while (setq marker (pop gnus-button-marker-list))
5361 (if (or (< marker (point-min)) (>= marker (point-max)))
5362 (push marker new-list)
5364 (when (setq entry (gnus-button-entry))
5365 (put-text-property (match-beginning (nth 1 entry))
5366 (match-end (nth 1 entry))
5367 'gnus-callback nil))
5368 (set-marker marker nil)))
5369 (setq gnus-button-marker-list new-list))
5370 ;; We skip the headers.
5373 (while (setq entry (pop alist))
5374 (setq regexp (car entry))
5376 (while (re-search-forward regexp nil t)
5377 (let* ((start (and entry (match-beginning (nth 1 entry))))
5378 (end (and entry (match-end (nth 1 entry))))
5379 (from (match-beginning 0)))
5380 (when (and (or (eq t (nth 2 entry))
5381 (eval (nth 2 entry)))
5382 (not (gnus-button-in-region-p
5383 start end 'gnus-callback)))
5384 ;; That optional form returned non-nil, so we add the
5386 (gnus-article-add-button
5387 start end 'gnus-button-push
5388 (car (push (set-marker (make-marker) from)
5389 gnus-button-marker-list))))))))))
5391 ;; Add buttons to the head of an article.
5392 (defun gnus-article-add-buttons-to-head ()
5393 "Add buttons to the head of the article."
5396 (set-buffer gnus-article-buffer)
5398 (let ((buffer-read-only nil)
5399 (inhibit-point-motion-hooks t)
5400 (case-fold-search t)
5401 (alist gnus-header-button-alist)
5403 (article-narrow-to-head)
5405 ;; Each alist entry.
5406 (setq entry (car alist)
5408 (goto-char (point-min))
5409 (while (re-search-forward (car entry) nil t)
5410 ;; Each header matching the entry.
5411 (setq beg (match-beginning 0))
5412 (setq end (or (and (re-search-forward "^[^ \t]" nil t)
5413 (match-beginning 0))
5416 (while (re-search-forward (nth 1 entry) end t)
5417 ;; Each match within a header.
5418 (let* ((entry (cdr entry))
5419 (start (match-beginning (nth 1 entry)))
5420 (end (match-end (nth 1 entry)))
5421 (form (nth 2 entry)))
5422 (goto-char (match-end 0))
5424 (gnus-article-add-button
5425 start end (nth 3 entry)
5426 (buffer-substring (match-beginning (nth 4 entry))
5427 (match-end (nth 4 entry)))))))
5428 (goto-char end)))))))
5430 ;;; External functions:
5432 (defun gnus-article-add-button (from to fun &optional data)
5433 "Create a button between FROM and TO with callback FUN and data DATA."
5434 (when gnus-article-button-face
5435 (gnus-overlay-put (gnus-make-overlay from to)
5436 'face gnus-article-button-face))
5437 (gnus-add-text-properties
5439 (nconc (and gnus-article-mouse-face
5440 (list gnus-mouse-face-prop gnus-article-mouse-face))
5441 (list 'gnus-callback fun)
5442 (and data (list 'gnus-data data))))
5443 (widget-convert-button 'link from to :action 'gnus-widget-press-button
5444 :button-keymap gnus-widget-button-keymap))
5446 ;;; Internal functions:
5448 (defun gnus-article-set-globals ()
5450 (set-buffer gnus-summary-buffer)
5451 (gnus-set-global-variables)))
5453 (defun gnus-signature-toggle (end)
5455 (set-buffer gnus-article-buffer)
5456 (let ((buffer-read-only nil)
5457 (inhibit-point-motion-hooks t))
5458 (if (text-property-any end (point-max) 'article-type 'signature)
5460 (gnus-delete-wash-type 'signature)
5461 (gnus-remove-text-properties-when
5462 'article-type 'signature end (point-max)
5463 (cons 'article-type (cons 'signature
5464 gnus-hidden-properties))))
5465 (gnus-add-wash-type 'signature)
5466 (gnus-add-text-properties-when
5467 'article-type nil end (point-max)
5468 (cons 'article-type (cons 'signature
5469 gnus-hidden-properties)))))
5470 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
5471 (gnus-set-mode-line 'article))))
5473 (defun gnus-button-entry ()
5474 ;; Return the first entry in `gnus-button-alist' matching this place.
5475 (let ((alist gnus-button-alist)
5478 (setq entry (pop alist))
5479 (if (looking-at (car entry))
5484 (defun gnus-button-push (marker)
5485 ;; Push button starting at MARKER.
5488 (let* ((entry (gnus-button-entry))
5489 (inhibit-point-motion-hooks t)
5491 (args (mapcar (lambda (group)
5492 (let ((string (match-string group)))
5493 (gnus-set-text-properties
5494 0 (length string) nil string)
5501 (fboundp (symbol-value fun)))
5502 (apply (symbol-value fun) args))
5504 (gnus-message 1 "You must define `%S' to use this button"
5505 (cons fun args)))))))
5507 (defun gnus-parse-news-url (url)
5508 (let (scheme server group message-id articles)
5511 (goto-char (point-min))
5512 (when (looking-at "\\([A-Za-z]+\\):")
5513 (setq scheme (match-string 1))
5514 (goto-char (match-end 0)))
5515 (when (looking-at "//\\([^/]+\\)/")
5516 (setq server (match-string 1))
5517 (goto-char (match-end 0)))
5520 ((looking-at "\\(.*@.*\\)")
5521 (setq message-id (match-string 1)))
5522 ((looking-at "\\([^/]+\\)/\\([-0-9]+\\)")
5523 (setq group (match-string 1)
5524 articles (split-string (match-string 2) "-")))
5525 ((looking-at "\\([^/]+\\)/?")
5526 (setq group (match-string 1)))
5528 (error "Unknown news URL syntax"))))
5529 (list scheme server group message-id articles)))
5531 (defun gnus-button-handle-news (url)
5533 (destructuring-bind (scheme server group message-id articles)
5534 (gnus-parse-news-url url)
5538 (set-buffer gnus-summary-buffer)
5540 (let ((gnus-refer-article-method (list (list 'nntp server))))
5541 (gnus-summary-refer-article message-id))
5542 (gnus-summary-refer-article message-id))))
5544 (gnus-button-fetch-group url)))))
5546 (defun gnus-button-handle-info (url)
5547 "Fetch an info URL."
5549 "^\\([^:/]+\\)?/\\(.*\\)"
5551 (gnus-info-find-node
5552 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
5555 (gnus-url-unhex-string (match-string 2 url))))
5556 (error "Can't parse %s" url)))
5558 (defun gnus-button-message-id (message-id)
5561 (set-buffer gnus-summary-buffer)
5562 (gnus-summary-refer-article message-id)))
5564 (defun gnus-button-fetch-group (address)
5565 "Fetch GROUP specified by ADDRESS."
5566 (if (not (string-match "[:/]" address))
5567 ;; This is just a simple group url.
5568 (gnus-group-read-ephemeral-group address gnus-select-method)
5571 "^\\([^:/]+\\)\\(:\\([^/]+\\)\\)?/\\([^/]+\\)\\(/\\([0-9]+\\)\\)?"
5573 (error "Can't parse %s" address)
5574 (gnus-group-read-ephemeral-group
5575 (match-string 4 address)
5576 `(nntp ,(match-string 1 address)
5577 (nntp-address ,(match-string 1 address))
5578 (nntp-port-number ,(if (match-end 3)
5579 (match-string 3 address)
5582 (and (match-end 6) (list (string-to-int (match-string 6 address))))))))
5584 (defun gnus-url-parse-query-string (query &optional downcase)
5585 (let (retval pairs cur key val)
5586 (setq pairs (split-string query "&"))
5588 (setq cur (car pairs)
5590 (if (not (string-match "=" cur))
5592 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
5593 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
5595 (setq key (downcase key)))
5596 (setq cur (assoc key retval))
5598 (setcdr cur (cons val (cdr cur)))
5599 (setq retval (cons (list key val) retval)))))
5602 (defun gnus-url-mailto (url)
5603 ;; Send mail to someone
5604 (when (string-match "mailto:/*\\(.*\\)" url)
5605 (setq url (substring url (match-beginning 1) nil)))
5606 (let (to args subject func)
5607 (if (string-match (regexp-quote "?") url)
5608 (setq to (gnus-url-unhex-string (substring url 0 (match-beginning 0)))
5609 args (gnus-url-parse-query-string
5610 (substring url (match-end 0) nil) t))
5611 (setq to (gnus-url-unhex-string url)))
5612 (setq args (cons (list "to" to) args)
5613 subject (cdr-safe (assoc "subject" args)))
5616 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
5619 (message-position-on-field (caar args)))
5620 (insert (mapconcat 'identity (cdar args) ", "))
5621 (setq args (cdr args)))
5624 (message-goto-subject))))
5626 (defun gnus-button-embedded-url (address)
5627 "Activate ADDRESS with `browse-url'."
5628 (browse-url (gnus-strip-whitespace address)))
5630 ;;; Next/prev buttons in the article buffer.
5632 (defvar gnus-next-page-line-format "%{%(Next page...%)%}\n")
5633 (defvar gnus-prev-page-line-format "%{%(Previous page...%)%}\n")
5635 (defvar gnus-prev-page-map
5636 (let ((map (make-sparse-keymap)))
5637 (unless (>= emacs-major-version 21)
5638 ;; XEmacs doesn't care.
5639 (set-keymap-parent map gnus-article-mode-map))
5640 (define-key map gnus-mouse-2 'gnus-button-prev-page)
5641 (define-key map "\r" 'gnus-button-prev-page)
5644 (defun gnus-insert-prev-page-button ()
5646 (buffer-read-only nil))
5648 gnus-prev-page-line-format nil
5649 `(,@(gnus-local-map-property gnus-prev-page-map)
5651 gnus-callback gnus-article-button-prev-page
5652 article-type annotation))
5653 (widget-convert-button
5655 :action 'gnus-button-prev-page
5656 :button-keymap gnus-prev-page-map)))
5658 (defvar gnus-prev-page-map
5659 (let ((map (make-sparse-keymap)))
5660 (unless (>= emacs-major-version 21)
5661 ;; XEmacs doesn't care.
5662 (set-keymap-parent map gnus-article-mode-map))
5663 (define-key map gnus-mouse-2 'gnus-button-prev-page)
5664 (define-key map "\r" 'gnus-button-prev-page)
5667 (defvar gnus-next-page-map
5668 (let ((map (make-sparse-keymap)))
5669 (unless (>= emacs-major-version 21)
5670 ;; XEmacs doesn't care.
5671 (set-keymap-parent map gnus-article-mode-map))
5672 (define-key map gnus-mouse-2 'gnus-button-next-page)
5673 (define-key map "\r" 'gnus-button-next-page)
5676 (defun gnus-button-next-page (&optional args more-args)
5677 "Go to the next page."
5679 (let ((win (selected-window)))
5680 (select-window (gnus-get-buffer-window gnus-article-buffer t))
5681 (gnus-article-next-page)
5682 (select-window win)))
5684 (defun gnus-button-prev-page (&optional args more-args)
5685 "Go to the prev page."
5687 (let ((win (selected-window)))
5688 (select-window (gnus-get-buffer-window gnus-article-buffer t))
5689 (gnus-article-prev-page)
5690 (select-window win)))
5692 (defun gnus-insert-next-page-button ()
5694 (buffer-read-only nil))
5695 (gnus-eval-format gnus-next-page-line-format nil
5696 `(,@(gnus-local-map-property gnus-next-page-map)
5698 gnus-callback gnus-article-button-next-page
5699 article-type annotation))
5700 (widget-convert-button
5702 :action 'gnus-button-next-page
5703 :button-keymap gnus-next-page-map)))
5705 (defun gnus-article-button-next-page (arg)
5706 "Go to the next page."
5708 (let ((win (selected-window)))
5709 (select-window (gnus-get-buffer-window gnus-article-buffer t))
5710 (gnus-article-next-page)
5711 (select-window win)))
5713 (defun gnus-article-button-prev-page (arg)
5714 "Go to the prev page."
5716 (let ((win (selected-window)))
5717 (select-window (gnus-get-buffer-window gnus-article-buffer t))
5718 (gnus-article-prev-page)
5719 (select-window win)))
5721 (defvar gnus-decode-header-methods
5722 '(mail-decode-encoded-word-region)
5723 "List of methods used to decode headers.
5725 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
5726 is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
5727 (REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
5728 whose names match REGEXP.
5731 ((\"chinese\" . gnus-decode-encoded-word-region-by-guess)
5732 mail-decode-encoded-word-region
5733 (\"chinese\" . rfc1843-decode-region))
5736 (defvar gnus-decode-header-methods-cache nil)
5738 (defun gnus-multi-decode-header (start end)
5739 "Apply the functions from `gnus-encoded-word-methods' that match."
5740 (unless (and gnus-decode-header-methods-cache
5741 (eq gnus-newsgroup-name
5742 (car gnus-decode-header-methods-cache)))
5743 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
5746 (nconc gnus-decode-header-methods-cache (list x))
5747 (if (and gnus-newsgroup-name
5748 (string-match (car x) gnus-newsgroup-name))
5749 (nconc gnus-decode-header-methods-cache
5751 gnus-decode-header-methods))
5752 (let ((xlist gnus-decode-header-methods-cache))
5755 (narrow-to-region start end)
5757 (funcall (pop xlist) (point-min) (point-max))))))
5760 ;;; Treatment top-level handling.
5763 (defun gnus-treat-article (condition &optional part-number total-parts type)
5764 (let ((length (- (point-max) (point-min)))
5765 (alist gnus-treatment-function-alist)
5766 (article-goto-body-goes-to-point-min-p t)
5770 (let ((list gnus-article-treat-types))
5772 (when (string-match (pop list) type)
5773 (throw 'found t)))))))
5774 (highlightp (gnus-visual-p 'article-highlight 'highlight))
5776 (gnus-run-hooks 'gnus-part-display-hook)
5777 (while (setq elem (pop alist))
5780 (if (gnus-buffer-live-p gnus-summary-buffer)
5781 (set-buffer gnus-summary-buffer))
5782 (symbol-value (car elem))))
5783 (when (and (or (consp val)
5785 (gnus-treat-predicate val)
5786 (or (not (get (car elem) 'highlight))
5789 (funcall (cadr elem)))))))
5791 ;; Dynamic variables.
5793 (defvar part-number)
5794 (defvar total-parts)
5799 (defun gnus-treat-predicate (val)
5804 (stringp (car val)))
5805 (apply 'gnus-or (mapcar `(lambda (s)
5806 (string-match s ,(or gnus-newsgroup-name "")))
5809 (let ((pred (pop val)))
5812 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
5814 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
5816 (not (gnus-treat-predicate (car val))))
5818 (equal (car val) type))
5820 (error "%S is not a valid predicate" pred)))))
5828 (eq part-number total-parts))
5832 (error "%S is not a valid value" val))))
5834 (defun gnus-article-encrypt-body (protocol &optional n)
5835 "Encrypt the article body."
5838 (or gnus-article-encrypt-protocol
5839 (completing-read "Encrypt protocol: "
5840 gnus-article-encrypt-protocol-alist
5842 current-prefix-arg))
5843 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
5845 (error (format "Can't find the encrypt protocol %s" protocol)))
5846 (if (equal gnus-newsgroup-name "nndraft:drafts")
5847 (error "Can't encrypt the article in group nndraft:drafts"))
5848 (if (equal gnus-newsgroup-name "nndraft:queue")
5849 (error "Don't encrypt the article in group nndraft:queue"))
5850 (gnus-summary-iterate n
5852 (set-buffer gnus-summary-buffer)
5853 (let ((mail-parse-charset gnus-newsgroup-charset)
5854 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
5855 (summary-buffer gnus-summary-buffer)
5857 (gnus-set-global-variables)
5858 (when (gnus-group-read-only-p)
5859 (error "The current newsgroup does not support article encrypt"))
5860 (gnus-summary-show-article t)
5862 (or (mail-header-references gnus-current-headers) ""))
5863 (set-buffer gnus-article-buffer)
5864 (let* ((buffer-read-only nil)
5866 (mapcar (lambda (field)
5867 (and (save-restriction
5868 (message-narrow-to-head)
5869 (goto-char (point-min))
5870 (search-forward field nil t))
5872 (message-narrow-to-field)
5873 (buffer-substring (point-min) (point-max))
5874 (delete-region (point-min) (point-max))
5876 '("Content-Type:" "Content-Transfer-Encoding:"
5877 "Content-Disposition:"))))
5878 (message-narrow-to-head)
5879 (message-remove-header "MIME-Version")
5880 (goto-char (point-max))
5881 (setq point (point))
5882 (insert (apply 'concat headers))
5884 (narrow-to-region point (point-max))
5885 (let ((message-options message-options))
5886 (message-options-set 'message-sender user-mail-address)
5887 (message-options-set 'message-recipients user-mail-address)
5888 (message-options-set 'message-sign-encrypt 'not)
5890 (goto-char (point-min))
5891 (insert "MIME-Version: 1.0\n")
5893 (gnus-summary-edit-article-done
5894 references nil summary-buffer t))
5895 (when gnus-keep-backlog
5896 (gnus-backlog-remove-article
5897 (car gnus-article-current) (cdr gnus-article-current)))
5899 (when (get-buffer gnus-original-article-buffer)
5900 (set-buffer gnus-original-article-buffer)
5901 (setq gnus-original-article nil)))
5902 (when gnus-use-cache
5903 (gnus-cache-update-article
5904 (car gnus-article-current) (cdr gnus-article-current))))))))
5906 (defvar gnus-mime-security-button-line-format "%{%([[%t:%i]%D]%)%}\n"
5907 "The following specs can be used:
5908 %t The security MIME type
5911 %D Details if button is pressed")
5913 (defvar gnus-mime-security-button-end-line-format "%{%([[End of %t]%D]%)%}\n"
5914 "The following specs can be used:
5915 %t The security MIME type
5918 %D Details if button is pressed")
5920 (defvar gnus-mime-security-button-line-format-alist
5921 '((?t gnus-tmp-type ?s)
5922 (?i gnus-tmp-info ?s)
5923 (?d gnus-tmp-details ?s)
5924 (?D gnus-tmp-pressed-details ?s)))
5926 (defvar gnus-mime-security-button-map
5927 (let ((map (make-sparse-keymap)))
5928 (unless (>= (string-to-number emacs-version) 21)
5929 (set-keymap-parent map gnus-article-mode-map))
5930 (define-key map gnus-mouse-2 'gnus-article-push-button)
5931 (define-key map "\r" 'gnus-article-press-button)
5934 (defvar gnus-mime-security-details-buffer nil)
5936 (defvar gnus-mime-security-button-pressed nil)
5938 (defvar gnus-mime-security-show-details-inline t
5939 "If non-nil, show details in the article buffer.")
5941 (defun gnus-mime-security-verify-or-decrypt (handle)
5942 (mm-remove-parts (cdr handle))
5943 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
5944 point buffer-read-only)
5946 (goto-char (car region)))
5948 (narrow-to-region (point) (point))
5949 (with-current-buffer (mm-handle-multipart-original-buffer handle)
5950 (let* ((mm-verify-option 'known)
5951 (mm-decrypt-option 'known)
5952 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
5953 (unless (eq nparts (cdr handle))
5954 (mm-destroy-parts (cdr handle))
5955 (setcdr handle nparts))))
5956 (setq point (point))
5957 (gnus-mime-display-security handle)
5958 (goto-char (point-max)))
5960 (delete-region (point) (cdr region))
5961 (set-marker (car region) nil)
5962 (set-marker (cdr region) nil))
5965 (defun gnus-mime-security-show-details (handle)
5966 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
5968 (if gnus-mime-security-show-details-inline
5969 (let ((gnus-mime-security-button-pressed t)
5970 (gnus-mime-security-button-line-format
5971 (get-text-property (point) 'gnus-line-format))
5974 (while (eq (get-text-property (point) 'gnus-line-format)
5975 gnus-mime-security-button-line-format)
5979 (narrow-to-region (point) (point))
5980 (gnus-insert-mime-security-button handle))
5981 (delete-region (point)
5982 (or (text-property-not-all
5985 gnus-mime-security-button-line-format)
5987 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
5988 (with-current-buffer gnus-mime-security-details-buffer
5991 (setq gnus-mime-security-details-buffer
5992 (gnus-get-buffer-create "*MIME Security Details*")))
5993 (with-current-buffer gnus-mime-security-details-buffer
5995 (goto-char (point-min)))
5996 (pop-to-buffer gnus-mime-security-details-buffer))
5997 (gnus-message 5 "No details."))))
5999 (defun gnus-mime-security-press-button (handle)
6000 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
6001 (gnus-mime-security-show-details handle)
6002 (gnus-mime-security-verify-or-decrypt handle)))
6004 (defun gnus-insert-mime-security-button (handle &optional displayed)
6005 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
6008 (or (nth 2 (assoc protocol mm-verify-function-alist))
6009 (nth 2 (assoc protocol mm-decrypt-function-alist))
6011 (if (equal (car handle) "multipart/signed")
6012 " Signed" " Encrypted")
6015 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
6018 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
6019 gnus-tmp-pressed-details
6021 (setq gnus-tmp-details
6022 (if gnus-tmp-details
6023 (concat "\n" gnus-tmp-details) ""))
6024 (setq gnus-tmp-pressed-details
6025 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
6030 gnus-mime-security-button-line-format
6031 gnus-mime-security-button-line-format-alist
6032 `(,@(gnus-local-map-property gnus-mime-security-button-map)
6033 gnus-callback gnus-mime-security-press-button
6034 gnus-line-format ,gnus-mime-security-button-line-format
6035 article-type annotation
6038 (widget-convert-button
6041 :action 'gnus-widget-press-button
6042 :button-keymap gnus-mime-security-button-map
6044 (lambda (widget/window &optional overlay pos)
6045 ;; Needed to properly clear the message due to a bug in
6046 ;; wid-edit (XEmacs only).
6047 (if (boundp 'help-echo-owns-message)
6048 (setq help-echo-owns-message t))
6051 (aref gnus-mouse-2 0))))))
6053 (defun gnus-mime-display-security (handle)
6055 (narrow-to-region (point) (point))
6056 (unless (gnus-unbuttonized-mime-type-p (car handle))
6057 (gnus-insert-mime-security-button handle))
6058 (gnus-mime-display-mixed (cdr handle))
6061 (unless (gnus-unbuttonized-mime-type-p (car handle))
6062 (let ((gnus-mime-security-button-line-format
6063 gnus-mime-security-button-end-line-format))
6064 (gnus-insert-mime-security-button handle)))
6065 (mm-set-handle-multipart-parameter
6067 (cons (set-marker (make-marker) (point-min))
6068 (set-marker (make-marker) (point-max))))))
6074 (run-hooks 'gnus-art-load-hook)
6076 ;;; gnus-art.el ends here