1 ;;; gnus-art.el --- article mode commands for Semi-gnus
2 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
5 ;; MORIOKA Tomohiko <morioka@jaist.ac.jp>
6 ;; Katsumi Yamaoka <yamaoka@jpl.org>
7 ;; Keywords: mail, news, MIME
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
30 (eval-when-compile (require 'cl))
31 (eval-when-compile (require 'static))
41 ;; Avoid byte-compile warnings.
51 (defgroup gnus-article nil
53 :link '(custom-manual "(gnus)The Article Buffer")
56 (defgroup gnus-article-treat nil
57 "Treating article parts."
58 :link '(custom-manual "(gnus)Article Hiding")
61 (defgroup gnus-article-hiding nil
62 "Hiding article parts."
63 :link '(custom-manual "(gnus)Article Hiding")
66 (defgroup gnus-article-highlight nil
67 "Article highlighting."
68 :link '(custom-manual "(gnus)Article Highlighting")
72 (defgroup gnus-article-signature nil
74 :link '(custom-manual "(gnus)Article Signature")
77 (defgroup gnus-article-headers nil
79 :link '(custom-manual "(gnus)Hiding Headers")
82 (defgroup gnus-article-washing nil
83 "Special commands on articles."
84 :link '(custom-manual "(gnus)Article Washing")
87 (defgroup gnus-article-emphasis nil
88 "Fontisizing articles."
89 :link '(custom-manual "(gnus)Article Fontisizing")
92 (defgroup gnus-article-saving nil
94 :link '(custom-manual "(gnus)Saving Articles")
97 (defgroup gnus-article-mime nil
98 "Worshiping the MIME wonder."
99 :link '(custom-manual "(gnus)Using MIME")
100 :group 'gnus-article)
102 (defgroup gnus-article-buttons nil
103 "Pushable buttons in the article buffer."
104 :link '(custom-manual "(gnus)Article Buttons")
105 :group 'gnus-article)
107 (defgroup gnus-article-various nil
108 "Other article options."
109 :link '(custom-manual "(gnus)Misc Article")
110 :group 'gnus-article)
112 (defcustom gnus-ignored-headers
113 '("^Path:" "^Expires:" "^Date-Received:" "^References:" "^Xref:" "^Lines:"
114 "^Relay-Version:" "^Message-ID:" "^Approved:" "^Sender:" "^Received:"
115 "^X-UIDL:" "^MIME-Version:" "^Return-Path:" "^In-Reply-To:"
116 "^Content-Type:" "^Content-Transfer-Encoding:" "^X-WebTV-Signature:"
117 "^X-MimeOLE:" "^X-MSMail-Priority:" "^X-Priority:" "^X-Loop:"
118 "^X-Authentication-Warning:" "^X-MIME-Autoconverted:" "^X-Face:"
119 "^X-Attribution:" "^X-Originating-IP:" "^Delivered-To:"
120 "^NNTP-[-A-Za-z]+:" "^Distribution:" "^X-no-archive:" "^X-Trace:"
121 "^X-Complaints-To:" "^X-NNTP-Posting-Host:" "^X-Orig.*:"
122 "^Abuse-Reports-To:" "^Cache-Post-Path:" "^X-Article-Creation-Date:"
123 "^X-Poster:" "^X-Mail2News-Path:" "^X-Server-Date:" "^X-Cache:"
124 "^Originator:" "^X-Problems-To:" "^X-Auth-User:" "^X-Post-Time:"
125 "^X-Admin:" "^X-UID:" "^Resent-[-A-Za-z]+:" "^X-Mailing-List:"
126 "^Precedence:" "^Original-[-A-Za-z]+:" "^X-filename:" "^X-Orcpt:"
127 "^Old-Received:" "^X-Pgp" "^X-Auth:" "^X-From-Line:"
128 "^X-Gnus-Article-Number:" "^X-Majordomo:" "^X-Url:" "^X-Sender:"
129 "^MBOX-Line" "^Priority:" "^X-Pgp" "^X400-[-A-Za-z]+:"
130 "^Status:" "^X-Gnus-Mail-Source:" "^Cancel-Lock:"
131 "^X-FTN" "^X-EXP32-SerialNo:" "^Encoding:" "^Importance:"
132 "^Autoforwarded:" "^Original-Encoded-Information-Types:" "^X-Ya-Pop3:"
133 "^X-Face-Version:" "^X-Vms-To:" "^X-ML-NAME:" "^X-ML-COUNT:"
134 "^Mailing-List:" "^X-finfo:" "^X-md5sum:" "^X-md5sum-Origin:"
135 "^X-Sun-Charset:" "^X-Accept-Language:" "^X-Envelope-Sender:"
136 "^List-[A-Za-z]+:" "^X-Listprocessor-Version:"
137 "^X-Received:" "^X-Distribute:" "^X-Sequence:" "^X-Juno-Line-Breaks:"
138 "^X-Notes-Item:" "^X-MS-TNEF-Correlator:" "^x-uunet-gateway:"
139 "^X-Received:" "^Content-length:" "X-precedence:")
140 "*All headers that start with this regexp will be hidden.
141 This variable can also be a list of regexps of headers to be ignored.
142 If `gnus-visible-headers' is non-nil, this variable will be ignored."
143 :type '(choice :custom-show nil
146 :group 'gnus-article-hiding)
148 (defcustom gnus-visible-headers
149 "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^[BGF]?Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From:\\|^X-Sent:"
150 "*All headers that do not match this regexp will be hidden.
151 This variable can also be a list of regexp of headers to remain visible.
152 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
153 :type '(repeat :value-to-internal (lambda (widget value)
154 (custom-split-regexp-maybe value))
155 :match (lambda (widget value)
157 (widget-editable-list-match widget value)))
159 :group 'gnus-article-hiding)
161 (defcustom gnus-sorted-header-list
162 '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:"
163 "^Followup-To:" "^To:" "^Cc:" "^Date:" "^Organization:")
164 "*This variable is a list of regular expressions.
165 If it is non-nil, headers that match the regular expressions will
166 be placed first in the article buffer in the sequence specified by
168 :type '(repeat regexp)
169 :group 'gnus-article-hiding)
171 (defcustom gnus-boring-article-headers '(empty followup-to reply-to)
172 "Headers that are only to be displayed if they have interesting data.
173 Possible values in this list are `empty', `newsgroups', `followup-to',
174 `reply-to', `date', `long-to', and `many-to'."
175 :type '(set (const :tag "Headers with no content." empty)
176 (const :tag "Newsgroups with only one group." newsgroups)
177 (const :tag "Followup-to identical to newsgroups." followup-to)
178 (const :tag "Reply-to identical to from." reply-to)
179 (const :tag "Date less than four days old." date)
180 (const :tag "Very long To and/or Cc header." long-to)
181 (const :tag "Multiple To and/or Cc headers." many-to))
182 :group 'gnus-article-hiding)
184 (defcustom gnus-signature-separator '("^-- $" "^-- *$")
185 "Regexp matching signature separator.
186 This can also be a list of regexps. In that case, it will be checked
187 from head to tail looking for a separator. Searches will be done from
188 the end of the buffer."
189 :type '(repeat string)
190 :group 'gnus-article-signature)
192 (defcustom gnus-signature-limit nil
193 "Provide a limit to what is considered a signature.
194 If it is a number, no signature may not be longer (in characters) than
195 that number. If it is a floating point number, no signature may be
196 longer (in lines) than that number. If it is a function, the function
197 will be called without any parameters, and if it returns nil, there is
198 no signature in the buffer. If it is a string, it will be used as a
199 regexp. If it matches, the text in question is not a signature."
200 :type '(choice (integer :value 200)
202 (function :value fun)
203 (regexp :value ".*"))
204 :group 'gnus-article-signature)
206 (defcustom gnus-hidden-properties '(invisible t intangible t)
207 "Property list to use for hiding text."
209 :group 'gnus-article-hiding)
211 (defcustom gnus-article-x-face-command
213 ;; Fixme: This isn't the right thing for mixed graphical and and
214 ;; non-graphical frames in a session.
215 ((and (fboundp 'image-type-available-p)
216 (image-type-available-p 'xbm))
217 'gnus-article-display-xface)
218 ((and (not gnus-xemacs)
220 (module-installed-p 'x-face-mule))
221 'x-face-mule-gnus-article-display-x-face)
223 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | display -"))
224 "*String or function to be executed to display an X-Face header.
225 If it is a string, the command will be executed in a sub-shell
226 asynchronously. The compressed face will be piped to this command."
227 :type '(choice string
228 (function-item gnus-article-display-xface)
229 (function-item x-face-mule-gnus-article-display-x-face)
231 :group 'gnus-article-washing)
233 (defcustom gnus-article-x-face-too-ugly nil
234 "Regexp matching posters whose face shouldn't be shown automatically."
235 :type '(choice regexp (const nil))
236 :group 'gnus-article-washing)
238 (defcustom gnus-emphasis-alist
240 "\\(\\s-\\|^\\|[-\"]\\|\\s(\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\\(\\s-\\|[-,;:\"]\\s-\\|[?!.]+\\s-\\|\\s)\\)")
242 '(("_" "_" underline)
245 ("_/" "/_" underline-italic)
246 ("_\\*" "\\*_" underline-bold)
247 ("\\*/" "/\\*" bold-italic)
248 ("_\\*/" "/\\*_" underline-bold-italic))))
249 `(("\\(\\s-\\|^\\)\\(_\\(\\(\\w\\|_[^_]\\)+\\)_\\)\\(\\s-\\|[?!.,;]\\)"
250 2 3 gnus-emphasis-underline)
254 (format format (car spec) (car (cdr spec)))
255 2 3 (intern (format "gnus-emphasis-%s" (nth 2 spec)))))
257 "*Alist that says how to fontify certain phrases.
258 Each item looks like this:
260 (\"_\\\\(\\\\w+\\\\)_\" 0 1 'underline)
262 The first element is a regular expression to be matched. The second
263 is a number that says what regular expression grouping used to find
264 the entire emphasized word. The third is a number that says what
265 regexp grouping should be displayed and highlighted. The fourth
266 is the face used for highlighting."
267 :type '(repeat (list :value ("" 0 0 default)
269 (integer :tag "Match group")
270 (integer :tag "Emphasize group")
272 :group 'gnus-article-emphasis)
274 (defcustom gnus-emphasize-whitespace-regexp "^[ \t]+\\|[ \t]*\n"
275 "A regexp to describe whitespace which should not be emphasized.
276 Typical values are \"^[ \\t]+\\\\|[ \\t]*\\n\" and \"[ \\t]+\\\\|[ \\t]*\\n\".
277 The former avoids underlining of leading and trailing whitespace,
278 and the latter avoids underlining any whitespace at all."
279 :group 'gnus-article-emphasis
282 (defface gnus-emphasis-bold '((t (:bold t)))
283 "Face used for displaying strong emphasized text (*word*)."
284 :group 'gnus-article-emphasis)
286 (defface gnus-emphasis-italic '((t (:italic t)))
287 "Face used for displaying italic emphasized text (/word/)."
288 :group 'gnus-article-emphasis)
290 (defface gnus-emphasis-underline '((t (:underline t)))
291 "Face used for displaying underlined emphasized text (_word_)."
292 :group 'gnus-article-emphasis)
294 (defface gnus-emphasis-underline-bold '((t (:bold t :underline t)))
295 "Face used for displaying underlined bold emphasized text (_*word*_)."
296 :group 'gnus-article-emphasis)
298 (defface gnus-emphasis-underline-italic '((t (:italic t :underline t)))
299 "Face used for displaying underlined italic emphasized text (_/word/_)."
300 :group 'gnus-article-emphasis)
302 (defface gnus-emphasis-bold-italic '((t (:bold t :italic t)))
303 "Face used for displaying bold italic emphasized text (/*word*/)."
304 :group 'gnus-article-emphasis)
306 (defface gnus-emphasis-underline-bold-italic
307 '((t (:bold t :italic t :underline t)))
308 "Face used for displaying underlined bold italic emphasized text.
309 Esample: (_/*word*/_)."
310 :group 'gnus-article-emphasis)
312 (defface gnus-emphasis-highlight-words
313 '((t (:background "black" :foreground "yellow")))
314 "Face used for displaying highlighted words."
315 :group 'gnus-article-emphasis)
317 (defcustom gnus-article-time-format "%a, %b %d %Y %T %Z"
318 "Format for display of Date headers in article bodies.
319 See `format-time-string' for the possible values.
321 The variable can also be function, which should return a complete Date
322 header. The function is called with one argument, the time, which can
323 be fed to `format-time-string'."
324 :type '(choice string symbol)
325 :link '(custom-manual "(gnus)Article Date")
326 :group 'gnus-article-washing)
329 (autoload 'mail-extract-address-components "mail-extr"))
331 (defcustom gnus-save-all-headers t
332 "*If non-nil, don't remove any headers before saving."
333 :group 'gnus-article-saving
336 (defcustom gnus-prompt-before-saving 'always
337 "*This variable says how much prompting is to be done when saving articles.
338 If it is nil, no prompting will be done, and the articles will be
339 saved to the default files. If this variable is `always', each and
340 every article that is saved will be preceded by a prompt, even when
341 saving large batches of articles. If this variable is neither nil not
342 `always', there the user will be prompted once for a file name for
343 each invocation of the saving commands."
344 :group 'gnus-article-saving
345 :type '(choice (item always)
346 (item :tag "never" nil)
347 (sexp :tag "once" :format "%t\n" :value t)))
349 (defcustom gnus-saved-headers gnus-visible-headers
350 "Headers to keep if `gnus-save-all-headers' is nil.
351 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
352 If that variable is nil, however, all headers that match this regexp
353 will be kept while the rest will be deleted before saving."
354 :group 'gnus-article-saving
357 (defcustom gnus-default-article-saver 'gnus-summary-save-in-rmail
358 "A function to save articles in your favourite format.
359 The function must be interactively callable (in other words, it must
360 be an Emacs command).
362 Gnus provides the following functions:
364 * gnus-summary-save-in-rmail (Rmail format)
365 * gnus-summary-save-in-mail (Unix mail format)
366 * gnus-summary-save-in-folder (MH folder)
367 * gnus-summary-save-in-file (article format)
368 * gnus-summary-save-in-vm (use VM's folder format)
369 * gnus-summary-write-to-file (article format -- overwrite)."
370 :group 'gnus-article-saving
371 :type '(radio (function-item gnus-summary-save-in-rmail)
372 (function-item gnus-summary-save-in-mail)
373 (function-item gnus-summary-save-in-folder)
374 (function-item gnus-summary-save-in-file)
375 (function-item gnus-summary-save-in-vm)
376 (function-item gnus-summary-write-to-file)))
378 (defcustom gnus-rmail-save-name 'gnus-plain-save-name
379 "A function generating a file name to save articles in Rmail format.
380 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
381 :group 'gnus-article-saving
384 (defcustom gnus-mail-save-name 'gnus-plain-save-name
385 "A function generating a file name to save articles in Unix mail format.
386 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
387 :group 'gnus-article-saving
390 (defcustom gnus-folder-save-name 'gnus-folder-save-name
391 "A function generating a file name to save articles in MH folder.
392 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
393 :group 'gnus-article-saving
396 (defcustom gnus-file-save-name 'gnus-numeric-save-name
397 "A function generating a file name to save articles in article format.
398 The function is called with NEWSGROUP, HEADERS, and optional
400 :group 'gnus-article-saving
403 (defcustom gnus-split-methods
404 '((gnus-article-archive-name)
405 (gnus-article-nndoc-name))
406 "*Variable used to suggest where articles are to be saved.
407 For instance, if you would like to save articles related to Gnus in
408 the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
409 you could set this variable to something like:
411 '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
412 (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
414 This variable is an alist where the where the key is the match and the
415 value is a list of possible files to save in if the match is non-nil.
417 If the match is a string, it is used as a regexp match on the
418 article. If the match is a symbol, that symbol will be funcalled
419 from the buffer of the article to be saved with the newsgroup as the
420 parameter. If it is a list, it will be evaled in the same buffer.
422 If this form or function returns a string, this string will be used as
423 a possible file name; and if it returns a non-nil list, that list will
424 be used as possible file names."
425 :group 'gnus-article-saving
426 :type '(repeat (choice (list :value (fun) function)
427 (cons :value ("" "") regexp (repeat string))
430 (defcustom gnus-article-display-method-for-mime
431 'gnus-article-display-mime-message
432 "Function to display a MIME message.
433 The function is called from the article buffer."
434 :group 'gnus-article-mime
437 (defcustom gnus-article-display-method-for-traditional
438 'gnus-article-display-traditional-message
439 "*Function to display a traditional message.
440 The function is called from the article buffer."
441 :group 'gnus-article-mime
444 (defcustom gnus-page-delimiter "^\^L"
445 "*Regexp describing what to use as article page delimiters.
446 The default value is \"^\^L\", which is a form linefeed at the
447 beginning of a line."
449 :group 'gnus-article-various)
451 (defcustom gnus-article-mode-line-format "Gnus: %g [%w] %S%m"
452 "*The format specification for the article mode line.
453 See `gnus-summary-mode-line-format' for a closer description.
455 The following additional specs are available:
457 %w The article washing status.
458 %m The number of MIME parts in the article."
460 :group 'gnus-article-various)
462 (defcustom gnus-article-mode-hook nil
463 "*A hook for Gnus article mode."
465 :group 'gnus-article-various)
467 (defcustom gnus-article-menu-hook nil
468 "*Hook run after the creation of the article mode menu."
470 :group 'gnus-article-various)
472 (defcustom gnus-article-prepare-hook nil
473 "*A hook called after an article has been prepared in the article buffer."
475 :group 'gnus-article-various)
477 (defcustom gnus-article-hide-pgp-hook nil
478 "*A hook called after successfully hiding a PGP signature."
480 :group 'gnus-article-various)
482 (defcustom gnus-article-button-face 'bold
483 "Face used for highlighting buttons in the article buffer.
485 An article button is a piece of text that you can activate by pressing
486 `RET' or `mouse-2' above it."
488 :group 'gnus-article-buttons)
490 (defcustom gnus-article-mouse-face 'highlight
491 "Face used for mouse highlighting in the article buffer.
493 Article buttons will be displayed in this face when the cursor is
496 :group 'gnus-article-buttons)
498 (defcustom gnus-signature-face 'gnus-signature-face
499 "Face used for highlighting a signature in the article buffer.
500 Obsolete; use the face `gnus-signature-face' for customizations instead."
502 :group 'gnus-article-highlight
503 :group 'gnus-article-signature)
505 (defface gnus-signature-face
507 "Face used for highlighting a signature in the article buffer."
508 :group 'gnus-article-highlight
509 :group 'gnus-article-signature)
511 (defface gnus-header-from-face
514 (:foreground "spring green"))
517 (:foreground "red3"))
520 "Face used for displaying from headers."
521 :group 'gnus-article-headers
522 :group 'gnus-article-highlight)
524 (defface gnus-header-subject-face
527 (:foreground "SeaGreen3"))
530 (:foreground "red4"))
532 (:bold t :italic t)))
533 "Face used for displaying subject headers."
534 :group 'gnus-article-headers
535 :group 'gnus-article-highlight)
537 (defface gnus-header-newsgroups-face
540 (:foreground "yellow" :italic t))
543 (:foreground "MidnightBlue" :italic t))
546 "Face used for displaying newsgroups headers."
547 :group 'gnus-article-headers
548 :group 'gnus-article-highlight)
550 (defface gnus-header-name-face
553 (:foreground "SeaGreen"))
556 (:foreground "maroon"))
559 "Face used for displaying header names."
560 :group 'gnus-article-headers
561 :group 'gnus-article-highlight)
563 (defface gnus-header-content-face
566 (:foreground "forest green" :italic t))
569 (:foreground "indianred4" :italic t))
571 (:italic t))) "Face used for displaying header content."
572 :group 'gnus-article-headers
573 :group 'gnus-article-highlight)
575 (defcustom gnus-header-face-alist
576 '(("From" nil gnus-header-from-face)
577 ("Subject" nil gnus-header-subject-face)
578 ("Newsgroups:.*," nil gnus-header-newsgroups-face)
579 ("" gnus-header-name-face gnus-header-content-face))
580 "*Controls highlighting of article header.
582 An alist of the form (HEADER NAME CONTENT).
584 HEADER is a regular expression which should match the name of an
585 header header and NAME and CONTENT are either face names or nil.
587 The name of each header field will be displayed using the face
588 specified by the first element in the list where HEADER match the
589 header name and NAME is non-nil. Similarly, the content will be
590 displayed by the first non-nil matching CONTENT face."
591 :group 'gnus-article-headers
592 :group 'gnus-article-highlight
593 :type '(repeat (list (regexp :tag "Header")
595 (item :tag "skip" nil)
596 (face :value default))
597 (choice :tag "Content"
598 (item :tag "skip" nil)
599 (face :value default)))))
601 (defcustom gnus-article-decode-hook nil
602 "*Hook run to decode charsets in articles."
603 :group 'gnus-article-headers
606 (defcustom gnus-display-mime-function 'gnus-display-mime
607 "Function to display MIME articles."
608 :group 'gnus-article-mime
611 (defvar gnus-decode-header-function 'mail-decode-encoded-word-region
612 "Function used to decode headers.")
614 (defvar gnus-article-dumbquotes-map
632 "Table for MS-to-Latin1 translation.")
634 (defcustom gnus-ignored-mime-types nil
635 "List of MIME types that should be ignored by Gnus."
636 :group 'gnus-article-mime
637 :type '(repeat regexp))
639 (defcustom gnus-unbuttonized-mime-types '(".*/.*")
640 "List of MIME types that should not be given buttons when rendered inline."
641 :group 'gnus-article-mime
642 :type '(repeat regexp))
644 (defcustom gnus-article-mime-part-function nil
645 "Function called with a MIME handle as the argument.
646 This is meant for people who want to do something automatic based
647 on parts -- for instance, adding Vcard info to a database."
648 :group 'gnus-article-mime
651 (defcustom gnus-mime-multipart-functions nil
652 "An alist of MIME types to functions to display them.")
654 (defcustom gnus-article-date-lapsed-new-header nil
655 "Whether the X-Sent and Date headers can coexist.
656 When using `gnus-treat-date-lapsed', the \"X-Sent:\" header will
657 either replace the old \"Date:\" header (if this variable is nil), or
658 be added below it (otherwise)."
659 :group 'gnus-article-headers
662 (defcustom gnus-article-mime-match-handle-function 'undisplayed-alternative
663 "Function called with a MIME handle as the argument.
664 This is meant for people who want to view first matched part.
665 For `undisplayed-alternative' (default), the first undisplayed
666 part or alternative part is used. For `undisplayed', the first
667 undisplayed part is used. For a function, the first part which
668 the function return `t' is used. For `nil', the first part is
670 :group 'gnus-article-mime
672 (item :tag "first" :value nil)
673 (item :tag "undisplayed" :value undisplayed)
674 (item :tag "undisplayed or alternative"
675 :value undisplayed-alternative)
679 ;;; The treatment variables
682 (defvar gnus-part-display-hook nil
683 "Hook called on parts that are to receive treatment.")
685 (defvar gnus-article-treat-custom
686 '(choice (const :tag "Off" nil)
688 (const :tag "Header" head)
689 (const :tag "Last" last)
690 (const :tag "Mime" mime)
691 (integer :tag "Less")
692 (repeat :tag "Groups" regexp)
693 (sexp :tag "Predicate")))
695 (defvar gnus-article-treat-head-custom
696 '(choice (const :tag "Off" nil)
697 (const :tag "Header" head)))
699 (defvar gnus-article-treat-types '("text/plain")
702 (defvar gnus-inhibit-treatment nil
703 "Whether to inhibit treatment.")
705 (defcustom gnus-treat-highlight-signature '(or last (typep "text/x-vcard"))
706 "Highlight the signature.
707 Valid values are nil, t, `head', `last', an integer or a predicate.
708 See the manual for details."
709 :group 'gnus-article-treat
710 :type gnus-article-treat-custom)
711 (put 'gnus-treat-highlight-signature 'highlight t)
713 (defcustom gnus-treat-buttonize 100000
715 Valid values are nil, t, `head', `last', an integer or a predicate.
716 See the manual for details."
717 :group 'gnus-article-treat
718 :type gnus-article-treat-custom)
719 (put 'gnus-treat-buttonize 'highlight t)
721 (defcustom gnus-treat-buttonize-head 'head
722 "Add buttons to the head.
723 Valid values are nil, t, `head', `last', an integer or a predicate.
724 See the manual for details."
725 :group 'gnus-article-treat
726 :type gnus-article-treat-head-custom)
727 (put 'gnus-treat-buttonize-head 'highlight t)
729 (defcustom gnus-treat-emphasize nil
731 Valid values are nil, t, `head', `last', an integer or a predicate.
732 See the manual for details."
733 :group 'gnus-article-treat
734 :type gnus-article-treat-custom)
735 (put 'gnus-treat-emphasize 'highlight t)
737 (defcustom gnus-treat-strip-cr nil
738 "Remove carriage returns.
739 Valid values are nil, t, `head', `last', an integer or a predicate.
740 See the manual for details."
741 :group 'gnus-article-treat
742 :type gnus-article-treat-custom)
744 (defcustom gnus-treat-hide-headers 'head
746 Valid values are nil, t, `head', `last', an integer or a predicate.
747 See the manual for details."
748 :group 'gnus-article-treat
749 :type gnus-article-treat-head-custom)
751 (defcustom gnus-treat-hide-boring-headers nil
752 "Hide boring headers.
753 Valid values are nil, t, `head', `last', an integer or a predicate.
754 See the manual for details."
755 :group 'gnus-article-treat
756 :type gnus-article-treat-head-custom)
758 (defcustom gnus-treat-hide-signature nil
760 Valid values are nil, t, `head', `last', an integer or a predicate.
761 See the manual for details."
762 :group 'gnus-article-treat
763 :type gnus-article-treat-custom)
765 (defcustom gnus-treat-fill-article nil
767 Valid values are nil, t, `head', `last', an integer or a predicate.
768 See the manual for details."
769 :group 'gnus-article-treat
770 :type gnus-article-treat-custom)
772 (defcustom gnus-treat-hide-citation nil
774 Valid values are nil, t, `head', `last', an integer or a predicate.
775 See the manual for details."
776 :group 'gnus-article-treat
777 :type gnus-article-treat-custom)
779 (defcustom gnus-treat-strip-list-identifiers 'head
780 "Strip list identifiers from `gnus-list-identifiers`.
781 Valid values are nil, t, `head', `last', an integer or a predicate.
782 See the manual for details."
783 :group 'gnus-article-treat
784 :type gnus-article-treat-custom)
786 (defcustom gnus-treat-strip-pgp t
787 "Strip PGP signatures.
788 Valid values are nil, t, `head', `last', an integer or a predicate.
789 See the manual for details."
790 :group 'gnus-article-treat
791 :type gnus-article-treat-custom)
793 (defcustom gnus-treat-strip-pem nil
794 "Strip PEM signatures.
795 Valid values are nil, t, `head', `last', an integer or a predicate.
796 See the manual for details."
797 :group 'gnus-article-treat
798 :type gnus-article-treat-custom)
800 (defcustom gnus-treat-strip-banner t
801 "Strip banners from articles.
802 The banner to be stripped is specified in the `banner' group parameter.
803 Valid values are nil, t, `head', `last', an integer or a predicate.
804 See the manual for details."
805 :group 'gnus-article-treat
806 :type gnus-article-treat-custom)
808 (defcustom gnus-treat-highlight-headers 'head
809 "Highlight the headers.
810 Valid values are nil, t, `head', `last', an integer or a predicate.
811 See the manual for details."
812 :group 'gnus-article-treat
813 :type gnus-article-treat-head-custom)
814 (put 'gnus-treat-highlight-headers 'highlight t)
816 (defcustom gnus-treat-highlight-citation t
817 "Highlight cited text.
818 Valid values are nil, t, `head', `last', an integer or a predicate.
819 See the manual for details."
820 :group 'gnus-article-treat
821 :type gnus-article-treat-custom)
822 (put 'gnus-treat-highlight-citation 'highlight t)
824 (defcustom gnus-treat-date-ut nil
825 "Display the Date in UT (GMT).
826 Valid values are nil, t, `head', `last', an integer or a predicate.
827 See the manual for details."
828 :group 'gnus-article-treat
829 :type gnus-article-treat-head-custom)
831 (defcustom gnus-treat-date-local nil
832 "Display the Date in the local timezone.
833 Valid values are nil, t, `head', `last', an integer or a predicate.
834 See the manual for details."
835 :group 'gnus-article-treat
836 :type gnus-article-treat-head-custom)
838 (defcustom gnus-treat-date-lapsed nil
839 "Display the Date header in a way that says how much time has elapsed.
840 Valid values are nil, t, `head', `last', an integer or a predicate.
841 See the manual for details."
842 :group 'gnus-article-treat
843 :type gnus-article-treat-head-custom)
845 (defcustom gnus-treat-date-original nil
846 "Display the date in the original timezone.
847 Valid values are nil, t, `head', `last', an integer or a predicate.
848 See the manual for details."
849 :group 'gnus-article-treat
850 :type gnus-article-treat-head-custom)
852 (defcustom gnus-treat-date-iso8601 nil
853 "Display the date in the ISO8601 format.
854 Valid values are nil, t, `head', `last', an integer or a predicate.
855 See the manual for details."
856 :group 'gnus-article-treat
857 :type gnus-article-treat-head-custom)
859 (defcustom gnus-treat-date-user-defined nil
860 "Display the date in a user-defined format.
861 The format is defined by the `gnus-article-time-format' variable.
862 Valid values are nil, t, `head', `last', an integer or a predicate.
863 See the manual for details."
864 :group 'gnus-article-treat
865 :type gnus-article-treat-head-custom)
867 (defcustom gnus-treat-strip-headers-in-body t
868 "Strip the X-No-Archive header line from the beginning of the body.
869 Valid values are nil, t, `head', `last', an integer or a predicate.
870 See the manual for details."
871 :group 'gnus-article-treat
872 :type gnus-article-treat-custom)
874 (defcustom gnus-treat-strip-trailing-blank-lines nil
875 "Strip trailing blank lines.
876 Valid values are nil, t, `head', `last', an integer or a predicate.
877 See the manual for details."
878 :group 'gnus-article-treat
879 :type gnus-article-treat-custom)
881 (defcustom gnus-treat-strip-leading-blank-lines nil
882 "Strip leading blank lines.
883 Valid values are nil, t, `head', `last', an integer or a predicate.
884 See the manual for details."
885 :group 'gnus-article-treat
886 :type gnus-article-treat-custom)
888 (defcustom gnus-treat-strip-multiple-blank-lines nil
889 "Strip multiple blank lines.
890 Valid values are nil, t, `head', `last', an integer or a predicate.
891 See the manual for details."
892 :group 'gnus-article-treat
893 :type gnus-article-treat-custom)
895 (defcustom gnus-treat-overstrike t
896 "Treat overstrike highlighting.
897 Valid values are nil, t, `head', `last', an integer or a predicate.
898 See the manual for details."
899 :group 'gnus-article-treat
900 :type gnus-article-treat-custom)
901 (put 'gnus-treat-overstrike 'highlight t)
903 (defcustom gnus-treat-display-xface
904 (if (or (and gnus-xemacs (featurep 'xface))
905 (eq 'x-face-mule-gnus-article-display-x-face
906 gnus-article-x-face-command))
909 "Display X-Face headers.
910 Valid values are nil, t, `head', `last', an integer or a predicate.
911 See the manual for details."
912 :group 'gnus-article-treat
913 :type gnus-article-treat-head-custom)
914 (put 'gnus-treat-display-xface 'highlight t)
916 (defcustom gnus-treat-display-smileys
917 (if (or (and gnus-xemacs (featurep 'xpm))
918 (and (not gnus-xemacs)
920 (module-installed-p 'gnus-bitmap)))
924 Valid values are nil, t, `head', `last', an integer or a predicate.
925 See the manual for details."
926 :group 'gnus-article-treat
927 :type gnus-article-treat-custom)
928 (put 'gnus-treat-display-smileys 'highlight t)
930 (defcustom gnus-treat-display-picons (if gnus-xemacs 'head nil)
932 Valid values are nil, t, `head', `last', an integer or a predicate.
933 See the manual for details."
934 :group 'gnus-article-treat
935 :type gnus-article-treat-head-custom)
936 (put 'gnus-treat-display-picons 'highlight t)
938 (defcustom gnus-treat-capitalize-sentences nil
939 "Capitalize sentence-starting words.
940 Valid values are nil, t, `head', `last', an integer or a predicate.
941 See the manual for details."
942 :group 'gnus-article-treat
943 :type gnus-article-treat-custom)
945 (defcustom gnus-treat-fill-long-lines nil
947 Valid values are nil, t, `head', `last', an integer or a predicate.
948 See the manual for details."
949 :group 'gnus-article-treat
950 :type gnus-article-treat-custom)
952 (defcustom gnus-treat-play-sounds nil
954 Valid values are nil, t, `head', `last', an integer or a predicate.
955 See the manual for details."
956 :group 'gnus-article-treat
957 :type gnus-article-treat-custom)
959 (defcustom gnus-treat-decode-article-as-default-mime-charset nil
960 "Decode an article as `default-mime-charset'. For instance, if you want to
961 attempt to decode an article even if the value of `gnus-show-mime' is nil,
962 you could set this variable to something like: nil for don't decode, t for
963 decode the body, '(or header t) for the whole article, etc."
964 :group 'gnus-article-treat
965 :type '(radio (const :tag "Off" nil)
966 (const :tag "Decode body" t)
967 (const :tag "Decode all" (or head t))))
969 (defcustom gnus-treat-translate nil
970 "Translate articles from one language to another.
971 Valid values are nil, t, `head', `last', an integer or a predicate.
972 See the manual for details."
973 :group 'gnus-article-treat
974 :type gnus-article-treat-custom)
976 ;;; Internal variables
978 (defvar article-goto-body-goes-to-point-min-p nil)
979 (defvar gnus-article-wash-types nil)
980 (defvar gnus-article-emphasis-alist nil)
982 (defvar gnus-article-mime-handle-alist-1 nil)
983 (defvar gnus-treatment-function-alist
984 '((gnus-treat-decode-article-as-default-mime-charset
985 gnus-article-decode-article-as-default-mime-charset)
986 (gnus-treat-strip-banner gnus-article-strip-banner)
987 (gnus-treat-strip-headers-in-body gnus-article-strip-headers-in-body)
988 (gnus-treat-buttonize gnus-article-add-buttons)
989 (gnus-treat-fill-article gnus-article-fill-cited-article)
990 (gnus-treat-fill-long-lines gnus-article-fill-long-lines)
991 (gnus-treat-strip-cr gnus-article-remove-cr)
992 (gnus-treat-display-xface gnus-article-display-x-face)
993 (gnus-treat-hide-headers gnus-article-maybe-hide-headers)
994 (gnus-treat-hide-boring-headers gnus-article-hide-boring-headers)
995 (gnus-treat-hide-signature gnus-article-hide-signature)
996 (gnus-treat-hide-citation gnus-article-hide-citation)
997 (gnus-treat-strip-list-identifiers gnus-article-hide-list-identifiers)
998 (gnus-treat-strip-pgp gnus-article-hide-pgp)
999 (gnus-treat-strip-pem gnus-article-hide-pem)
1000 (gnus-treat-highlight-headers gnus-article-highlight-headers)
1001 (gnus-treat-emphasize gnus-article-emphasize)
1002 (gnus-treat-highlight-citation gnus-article-highlight-citation)
1003 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1004 (gnus-treat-date-ut gnus-article-date-ut)
1005 (gnus-treat-date-local gnus-article-date-local)
1006 (gnus-treat-date-lapsed gnus-article-date-lapsed)
1007 (gnus-treat-date-original gnus-article-date-original)
1008 (gnus-treat-date-user-defined gnus-article-date-user)
1009 (gnus-treat-date-iso8601 gnus-article-date-iso8601)
1010 (gnus-treat-strip-trailing-blank-lines
1011 gnus-article-remove-trailing-blank-lines)
1012 (gnus-treat-strip-leading-blank-lines
1013 gnus-article-strip-leading-blank-lines)
1014 (gnus-treat-strip-multiple-blank-lines
1015 gnus-article-strip-multiple-blank-lines)
1016 (gnus-treat-overstrike gnus-article-treat-overstrike)
1017 (gnus-treat-buttonize-head gnus-article-add-buttons-to-head)
1018 (gnus-treat-display-smileys gnus-article-smiley-display)
1019 (gnus-treat-capitalize-sentences gnus-article-capitalize-sentences)
1020 (gnus-treat-display-picons gnus-article-display-picons)
1021 (gnus-treat-play-sounds gnus-earcon-display)))
1023 (defvar gnus-article-mime-handle-alist nil)
1024 (defvar article-lapsed-timer nil)
1025 (defvar gnus-article-current-summary nil)
1027 (defvar gnus-article-mode-syntax-table
1028 (let ((table (copy-syntax-table text-mode-syntax-table)))
1029 (modify-syntax-entry ?- "w" table)
1030 (modify-syntax-entry ?> ")" table)
1031 (modify-syntax-entry ?< "(" table)
1033 "Syntax table used in article mode buffers.
1034 Initialized from `text-mode-syntax-table.")
1036 (defvar gnus-save-article-buffer nil)
1038 (defvar gnus-article-mode-line-format-alist
1039 (nconc '((?w (gnus-article-wash-status) ?s)
1040 (?m (gnus-article-mime-part-status) ?s))
1041 gnus-summary-mode-line-format-alist))
1043 (defvar gnus-number-of-articles-to-be-saved nil)
1045 (defvar gnus-inhibit-hiding nil)
1047 (defsubst gnus-article-hide-text (b e props)
1048 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1049 (add-text-properties b e props)
1050 (when (memq 'intangible props)
1052 (max (1- b) (point-min))
1053 b 'intangible (cddr (memq 'intangible props)))))
1054 (defsubst gnus-article-unhide-text (b e)
1055 "Remove hidden text properties from region between B and E."
1056 (remove-text-properties b e gnus-hidden-properties)
1057 (when (memq 'intangible gnus-hidden-properties)
1058 (put-text-property (max (1- b) (point-min))
1059 b 'intangible nil)))
1061 (defun gnus-article-hide-text-type (b e type)
1062 "Hide text of TYPE between B and E."
1063 (push type gnus-article-wash-types)
1064 (gnus-article-hide-text
1065 b e (cons 'article-type (cons type gnus-hidden-properties))))
1067 (defun gnus-article-unhide-text-type (b e type)
1068 "Unhide text of TYPE between B and E."
1069 (setq gnus-article-wash-types
1070 (delq type gnus-article-wash-types))
1071 (remove-text-properties
1072 b e (cons 'article-type (cons type gnus-hidden-properties)))
1073 (when (memq 'intangible gnus-hidden-properties)
1074 (put-text-property (max (1- b) (point-min))
1075 b 'intangible nil)))
1077 (defun gnus-article-hide-text-of-type (type)
1078 "Hide text of TYPE in the current buffer."
1080 (let ((b (point-min))
1082 (while (setq b (text-property-any b e 'article-type type))
1083 (add-text-properties b (incf b) gnus-hidden-properties)))))
1085 (defun gnus-article-delete-text-of-type (type)
1086 "Delete text of TYPE in the current buffer."
1088 (let ((b (point-min)))
1089 (while (setq b (text-property-any b (point-max) 'article-type type))
1091 b (or (text-property-not-all b (point-max) 'article-type type)
1094 (defun gnus-article-delete-invisible-text ()
1095 "Delete all invisible text in the current buffer."
1097 (let ((b (point-min)))
1098 (while (setq b (text-property-any b (point-max) 'invisible t))
1100 b (or (text-property-not-all b (point-max) 'invisible t)
1103 (defun gnus-article-text-type-exists-p (type)
1104 "Say whether any text of type TYPE exists in the buffer."
1105 (text-property-any (point-min) (point-max) 'article-type type))
1107 (defsubst gnus-article-header-rank ()
1108 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1109 (let ((list gnus-sorted-header-list)
1112 (when (looking-at (car list))
1114 (setq list (cdr list))
1118 (defun article-hide-headers (&optional arg delete)
1119 "Hide unwanted headers and possibly sort them as well."
1120 (interactive (gnus-article-hidden-arg))
1121 ;; Lars said that this function might be inhibited.
1122 (if (gnus-article-check-hidden-text 'headers arg)
1124 ;; Show boring headers as well.
1125 (gnus-article-show-hidden-text 'boring-headers)
1126 (when (eq 1 (point-min))
1127 (set-window-start (get-buffer-window (current-buffer)) 1)))
1128 (unless gnus-inhibit-hiding
1131 (let ((buffer-read-only nil)
1132 (inhibit-read-only t)
1133 (case-fold-search t)
1134 (max (1+ (length gnus-sorted-header-list)))
1135 (ignored (when (not gnus-visible-headers)
1136 (cond ((stringp gnus-ignored-headers)
1137 gnus-ignored-headers)
1138 ((listp gnus-ignored-headers)
1139 (mapconcat 'identity gnus-ignored-headers
1142 (cond ((stringp gnus-visible-headers)
1143 gnus-visible-headers)
1144 ((and gnus-visible-headers
1145 (listp gnus-visible-headers))
1146 (mapconcat 'identity gnus-visible-headers "\\|"))))
1147 (inhibit-point-motion-hooks t)
1149 ;; First we narrow to just the headers.
1150 (article-narrow-to-head)
1151 ;; Hide any "From " lines at the beginning of (mail) articles.
1152 (while (looking-at "From ")
1156 (delete-region (point-min) (point))
1157 (gnus-article-hide-text (point-min) (point)
1158 (nconc (list 'article-type 'headers)
1159 gnus-hidden-properties))))
1160 ;; Then treat the rest of the header lines.
1161 ;; Then we use the two regular expressions
1162 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1163 ;; select which header lines is to remain visible in the
1165 (while (re-search-forward "^[^ \t]*:" nil t)
1167 ;; Mark the rank of the header.
1169 (point) (1+ (point)) 'message-rank
1170 (if (or (and visible (looking-at visible))
1172 (not (looking-at ignored))))
1173 (gnus-article-header-rank)
1176 (message-sort-headers-1)
1177 (when (setq beg (text-property-any
1178 (point-min) (point-max) 'message-rank (+ 2 max)))
1179 ;; We delete or make invisible the unwanted headers.
1180 (push 'headers gnus-article-wash-types)
1183 (add-text-properties
1184 (point-min) (+ 5 (point-min))
1185 '(article-type headers dummy-invisible t))
1186 (delete-region beg (point-max)))
1187 (gnus-article-hide-text-type beg (point-max) 'headers))))))))
1190 (defun article-hide-boring-headers (&optional arg)
1191 "Toggle hiding of headers that aren't very interesting.
1192 If given a negative prefix, always show; if given a positive prefix,
1194 (interactive (gnus-article-hidden-arg))
1195 (when (and (not (gnus-article-check-hidden-text 'boring-headers arg))
1196 (not gnus-show-all-headers))
1199 (let ((buffer-read-only nil)
1200 (list gnus-boring-article-headers)
1201 (inhibit-point-motion-hooks t)
1203 (article-narrow-to-head)
1205 (setq elem (pop list))
1206 (goto-char (point-min))
1208 ;; Hide empty headers.
1210 (while (re-search-forward "^[^: \t]+:[ \t]*\n[^ \t]" nil t)
1212 (gnus-article-hide-text-type
1213 (progn (beginning-of-line) (point))
1216 (if (re-search-forward "^[^ \t]" nil t)
1220 ;; Hide boring Newsgroups header.
1221 ((eq elem 'newsgroups)
1222 (when (equal (gnus-fetch-field "newsgroups")
1223 (gnus-group-real-name
1224 (if (boundp 'gnus-newsgroup-name)
1227 (gnus-article-hide-header "newsgroups")))
1228 ((eq elem 'followup-to)
1229 (when (equal (message-fetch-field "followup-to")
1230 (message-fetch-field "newsgroups"))
1231 (gnus-article-hide-header "followup-to")))
1232 ((eq elem 'reply-to)
1233 (let ((from (message-fetch-field "from"))
1234 (reply-to (message-fetch-field "reply-to")))
1239 (nth 1 (funcall gnus-extract-address-components from))
1240 (nth 1 (funcall gnus-extract-address-components reply-to)))))
1241 (gnus-article-hide-header "reply-to"))))
1243 (let ((date (message-fetch-field "date")))
1245 (< (days-between (current-time-string) date)
1247 (gnus-article-hide-header "date"))))
1249 (let ((to (message-fetch-field "to"))
1250 (cc (message-fetch-field "cc")))
1251 (when (> (length to) 1024)
1252 (gnus-article-hide-header "to"))
1253 (when (> (length cc) 1024)
1254 (gnus-article-hide-header "cc"))))
1258 (goto-char (point-min))
1259 (while (re-search-forward "^to:" nil t)
1260 (setq to-count (1+ to-count)))
1261 (when (> to-count 1)
1262 (while (> to-count 0)
1263 (goto-char (point-min))
1265 (re-search-forward "^to:" nil nil to-count)
1267 (narrow-to-region (point) (point-max))
1268 (gnus-article-hide-header "to"))
1269 (setq to-count (1- to-count))))
1270 (goto-char (point-min))
1271 (while (re-search-forward "^cc:" nil t)
1272 (setq cc-count (1+ cc-count)))
1273 (when (> cc-count 1)
1274 (while (> cc-count 0)
1275 (goto-char (point-min))
1277 (re-search-forward "^cc:" nil nil cc-count)
1279 (narrow-to-region (point) (point-max))
1280 (gnus-article-hide-header "cc"))
1281 (setq cc-count (1- cc-count)))))))))))))
1283 (defun gnus-article-hide-header (header)
1285 (goto-char (point-min))
1286 (when (re-search-forward (concat "^" header ":") nil t)
1287 (gnus-article-hide-text-type
1288 (progn (beginning-of-line) (point))
1291 (if (re-search-forward "^[^ \t]" nil t)
1296 (defun article-toggle-headers (&optional arg)
1297 "Toggle hiding of headers. If given a negative prefix, always show;
1298 if given a positive prefix, always hide."
1299 (interactive (gnus-article-hidden-arg))
1300 (let ((force (when (numberp arg)
1301 (cond ((> arg 0) 'always-hide)
1302 ((< arg 0) 'always-show))))
1303 (window (get-buffer-window gnus-article-buffer))
1304 (header-end (point-min))
1305 header-start field-end field-start
1306 (inhibit-point-motion-hooks t)
1307 (inhibit-read-only t)
1311 (while (and (setq header-start
1312 (text-property-any header-end (point-max)
1313 'article-treated-header t))
1315 (text-property-not-all header-start (point-max)
1316 'article-treated-header t)))
1317 (setq field-end header-start)
1319 (;; Hide exposed invisible fields.
1320 (and (not (eq 'always-show force))
1322 (text-property-any field-end header-end
1323 'exposed-invisible-field t)))
1324 (while (and field-start
1325 (setq field-end (text-property-not-all
1326 field-start header-end
1327 'exposed-invisible-field t)))
1328 (add-text-properties field-start field-end gnus-hidden-properties)
1329 (setq field-start (text-property-any field-end header-end
1330 'exposed-invisible-field t)))
1331 (put-text-property header-start header-end
1332 'exposed-invisible-field nil))
1333 (;; Expose invisible fields.
1334 (and (not (eq 'always-hide force))
1336 (text-property-any field-end header-end 'invisible t)))
1337 (while (and field-start
1338 (setq field-end (text-property-not-all
1339 field-start header-end
1341 ;; If the invisible text is not terminated with newline, we
1342 ;; won't expose it. Because it may be created by x-face-mule.
1343 ;; BTW, XEmacs sometimes fail in putting a invisible text
1344 ;; property with `gnus-article-hide-text' (really?). In that
1345 ;; case, the invisible text might be started from the middle of
1346 ;; a line so we will expose the sort of thing.
1347 (when (or (not (or (eq header-start field-start)
1348 (eq ?\n (char-before field-start))))
1349 (eq ?\n (char-before field-end)))
1350 (remove-text-properties field-start field-end
1351 gnus-hidden-properties)
1352 (put-text-property field-start field-end
1353 'exposed-invisible-field t))
1354 (setq field-start (text-property-any field-end header-end
1357 (not (eq 'always-show force))
1358 (narrow-to-region header-start header-end)
1359 (article-hide-headers)
1360 ;; Re-display X-Face image under XEmacs.
1361 (when (and gnus-xemacs
1362 (gnus-functionp gnus-article-x-face-command))
1363 (let ((func (cadr (assq 'gnus-treat-display-xface
1364 gnus-treatment-function-alist)))
1366 (when (and (not gnus-inhibit-treatment)
1368 (gnus-treat-predicate gnus-treat-display-xface))
1370 (put-text-property header-start header-end 'read-only nil))))
1373 (goto-char (point-min))
1375 (set-window-start window (point-min))))))
1377 (defvar gnus-article-normalized-header-length 40
1378 "Length of normalized headers.")
1380 (defun article-normalize-headers ()
1381 "Make all header lines 40 characters long."
1383 (let ((buffer-read-only nil)
1387 (article-narrow-to-head)
1390 ((< (setq column (- (gnus-point-at-eol) (point)))
1391 gnus-article-normalized-header-length)
1393 (insert (make-string
1394 (- gnus-article-normalized-header-length column)
1396 ((> column gnus-article-normalized-header-length)
1397 (gnus-put-text-property
1399 (forward-char gnus-article-normalized-header-length)
1406 (forward-line 1))))))
1408 (defun article-treat-dumbquotes ()
1409 "Translate M******** sm*rtq**t*s into proper text.
1410 Note that this function guesses whether a character is a sm*rtq**t* or
1411 not, so it should only be used interactively."
1413 (article-translate-strings gnus-article-dumbquotes-map))
1415 (defun article-translate-characters (from to)
1416 "Translate all characters in the body of the article according to FROM and TO.
1417 FROM is a string of characters to translate from; to is a string of
1418 characters to translate to."
1420 (when (article-goto-body)
1421 (let ((buffer-read-only nil)
1422 (x (make-string 225 ?x))
1424 (while (< (incf i) (length x))
1427 (while (< i (length from))
1428 (aset x (aref from i) (aref to i))
1430 (translate-region (point) (point-max) x)))))
1432 (defun article-translate-strings (map)
1433 "Translate all string in the body of the article according to MAP.
1434 MAP is an alist where the elements are on the form (\"from\" \"to\")."
1436 (when (article-goto-body)
1437 (let ((buffer-read-only nil)
1439 (while (setq elem (pop map))
1441 (while (search-forward (car elem) nil t)
1442 (replace-match (cadr elem)))))))))
1444 (defun article-treat-overstrike ()
1445 "Translate overstrikes into bold text."
1448 (when (article-goto-body)
1449 (let ((buffer-read-only nil))
1450 (while (search-forward "\b" nil t)
1451 (let ((next (char-after))
1455 previous (char-after))
1459 ;; We do the boldification/underlining by hiding the
1460 ;; overstrikes and putting the proper text property
1464 (gnus-article-hide-text-type start (point) 'overstrike)
1465 (put-text-property (point) end 'face 'bold))
1467 (gnus-article-hide-text-type
1468 (1- (point)) (1+ (point)) 'overstrike)
1470 start (1- (point)) 'face 'underline))
1472 (gnus-article-hide-text-type start (point) 'overstrike)
1474 (point) end 'face 'underline)))))))))
1476 (defun article-fill-long-lines ()
1477 "Fill lines that are wider than the window width."
1480 (let ((buffer-read-only nil)
1481 (width (window-width (get-buffer-window (current-buffer)))))
1484 (let ((adaptive-fill-mode nil))
1487 (when (>= (current-column) (min fill-column width))
1488 (narrow-to-region (point) (gnus-point-at-bol))
1489 (fill-paragraph nil)
1490 (goto-char (point-max))
1492 (forward-line 1)))))))
1494 (defun article-capitalize-sentences ()
1495 "Capitalize the first word in each sentence."
1498 (let ((buffer-read-only nil)
1499 (paragraph-start "^[\n\^L]"))
1503 (forward-sentence)))))
1505 (defun article-remove-cr ()
1506 "Remove trailing CRs and then translate remaining CRs into LFs."
1509 (let ((buffer-read-only nil))
1510 (goto-char (point-min))
1511 (while (re-search-forward "\r+$" nil t)
1512 (replace-match "" t t))
1513 (goto-char (point-min))
1514 (while (search-forward "\r" nil t)
1515 (replace-match "\n" t t)))))
1517 (defun article-remove-trailing-blank-lines ()
1518 "Remove all trailing blank lines from the article."
1521 (let ((buffer-read-only nil))
1522 (goto-char (point-max))
1526 (while (and (not (bobp))
1527 (looking-at "^[ \t]*$")
1528 (not (gnus-annotation-in-region-p
1529 (point) (gnus-point-at-eol))))
1534 (defun article-display-x-face (&optional force)
1535 "Look for an X-Face header and display it if present."
1536 (interactive (list 'force))
1538 ;; Delete the old process, if any.
1539 (when (process-status "article-x-face")
1540 (delete-process "article-x-face"))
1541 (let ((inhibit-point-motion-hooks t)
1542 (case-fold-search t)
1545 (article-narrow-to-head)
1546 (goto-char (point-min))
1547 (setq from (message-fetch-field "from"))
1548 (goto-char (point-min))
1549 (while (and gnus-article-x-face-command
1552 ;; Check whether this face is censored.
1553 (not gnus-article-x-face-too-ugly)
1554 (and gnus-article-x-face-too-ugly from
1555 (not (string-match gnus-article-x-face-too-ugly
1557 ;; Has to be present.
1558 (re-search-forward "^X-Face:[ \t]*" nil t))
1559 ;; This used to try to do multiple faces (`while' instead of
1560 ;; `when' above), but (a) sending multiple EOFs to xv doesn't
1561 ;; work (b) it can crash some versions of Emacs (c) are
1562 ;; multiple faces really something to encourage?
1563 (when (stringp gnus-article-x-face-command)
1565 ;; We now have the area of the buffer where the X-Face is stored.
1568 (end (1- (re-search-forward "^\\($\\|[^ \t]\\)" nil t))))
1569 ;; We display the face.
1570 (if (symbolp gnus-article-x-face-command)
1571 ;; The command is a lisp function, so we call it.
1572 (if (gnus-functionp gnus-article-x-face-command)
1573 (funcall gnus-article-x-face-command beg end)
1574 (error "%s is not a function" gnus-article-x-face-command))
1575 ;; The command is a string, so we interpret the command
1576 ;; as a, well, command, and fork it off.
1577 (let ((process-connection-type nil))
1578 (process-kill-without-query
1580 "article-x-face" nil shell-file-name shell-command-switch
1581 gnus-article-x-face-command))
1582 (process-send-region "article-x-face" beg end)
1583 (process-send-eof "article-x-face"))))))))))
1585 (defun article-decode-mime-words ()
1586 "Decode all MIME-encoded words in the article."
1589 (set-buffer gnus-article-buffer)
1590 (let ((inhibit-point-motion-hooks t)
1592 (mail-parse-charset gnus-newsgroup-charset)
1593 (mail-parse-ignored-charsets
1594 (save-excursion (set-buffer gnus-summary-buffer)
1595 gnus-newsgroup-ignored-charsets)))
1596 (mail-decode-encoded-word-region (point-min) (point-max)))))
1598 (defun article-decode-charset (&optional prompt)
1599 "Decode charset-encoded text in the article.
1600 If PROMPT (the prefix), prompt for a coding system to use."
1602 (let ((inhibit-point-motion-hooks t) (case-fold-search t)
1604 (mail-parse-charset gnus-newsgroup-charset)
1605 (mail-parse-ignored-charsets
1606 (save-excursion (condition-case nil
1607 (set-buffer gnus-summary-buffer)
1609 gnus-newsgroup-ignored-charsets))
1610 ct cte ctl charset format)
1613 (article-narrow-to-head)
1614 (setq ct (message-fetch-field "Content-Type" t)
1615 cte (message-fetch-field "Content-Transfer-Encoding" t)
1616 ctl (and ct (ignore-errors
1617 (mail-header-parse-content-type ct)))
1620 (mm-read-coding-system "Charset to decode: "))
1622 (mail-content-type-get ctl 'charset)))
1623 format (and ctl (mail-content-type-get ctl 'format)))
1625 (setq cte (mail-header-strip cte)))
1626 (if (and ctl (not (string-match "/" (car ctl))))
1628 (goto-char (point-max)))
1631 (narrow-to-region (point) (point-max))
1632 (when (and (eq mail-parse-charset 'gnus-decoded)
1633 (eq (mm-body-7-or-8) '8bit))
1634 ;; The text code could have been decoded.
1635 (setq charset mail-parse-charset))
1636 (when (and (or (not ctl)
1637 (equal (car ctl) "text/plain"))
1638 (not format)) ;; article with format will decode later.
1640 charset (and cte (intern (downcase
1641 (gnus-strip-whitespace cte))))
1644 (defun article-decode-encoded-words ()
1645 "Remove encoded-word encoding from headers."
1646 (let (buffer-read-only)
1647 (let ((charset (save-excursion
1648 (set-buffer gnus-summary-buffer)
1649 default-mime-charset)))
1650 (mime-decode-header-in-buffer charset)
1653 (defun article-de-quoted-unreadable (&optional force)
1654 "Translate a quoted-printable-encoded article.
1655 If FORCE, decode the article whether it is marked as quoted-printable
1657 (interactive (list 'force))
1659 (let ((buffer-read-only nil)
1660 (type (gnus-fetch-field "content-transfer-encoding"))
1661 (charset gnus-newsgroup-charset))
1663 (and type (string-match "quoted-printable" (downcase type))))
1665 (quoted-printable-decode-region (point) (point-max) charset)))))
1667 (defun article-de-base64-unreadable (&optional force)
1668 "Translate a base64 article.
1669 If FORCE, decode the article whether it is marked as base64 not."
1670 (interactive (list 'force))
1672 (let ((buffer-read-only nil)
1673 (type (gnus-fetch-field "content-transfer-encoding"))
1674 (charset gnus-newsgroup-charset))
1676 (and type (string-match "quoted-printable" (downcase type))))
1679 (narrow-to-region (point) (point-max))
1680 (base64-decode-region (point-min) (point-max))
1681 (if (mm-coding-system-p charset)
1682 (mm-decode-coding-region (point-min) (point-max) charset)))))))
1687 (defun article-decode-HZ ()
1688 "Translate a HZ-encoded article."
1692 (let ((buffer-read-only nil))
1693 (rfc1843-decode-region (point-min) (point-max)))))
1695 (defun article-wash-html ()
1696 "Format an html article."
1699 (let ((buffer-read-only nil)
1700 (charset gnus-newsgroup-charset))
1702 (save-window-excursion
1704 (narrow-to-region (point) (point-max))
1706 (let ((w3-strict-width (window-width))
1707 (url-standalone-mode t))
1709 (w3-region (point-min) (point-max))
1712 (defun article-hide-list-identifiers ()
1713 "Remove list identifies from the Subject header.
1714 The `gnus-list-identifiers' variable specifies what to do."
1718 (let ((inhibit-point-motion-hooks t)
1720 (article-narrow-to-head)
1721 (let ((regexp (if (stringp gnus-list-identifiers) gnus-list-identifiers
1722 (mapconcat 'identity gnus-list-identifiers " *\\|"))))
1724 (goto-char (point-min))
1725 (when (re-search-forward
1726 (concat "^Subject: +\\(\\(\\(Re: +\\)?\\(" regexp
1727 " *\\)\\)+\\(Re: +\\)?\\)")
1729 (let ((s (or (match-string 3) (match-string 5))))
1730 (delete-region (match-beginning 1) (match-end 1))
1732 (goto-char (match-beginning 1))
1735 (defun article-hide-pgp ()
1736 "Remove any PGP headers and signatures in the current article."
1740 (let ((inhibit-point-motion-hooks t)
1741 buffer-read-only beg end)
1743 ;; Hide the "header".
1744 (when (re-search-forward "^-----BEGIN PGP SIGNED MESSAGE-----\n" nil t)
1745 (push 'pgp gnus-article-wash-types)
1746 (delete-region (match-beginning 0) (match-end 0))
1747 ;; Remove armor headers (rfc2440 6.2)
1748 (delete-region (point) (or (re-search-forward "^[ \t]*\n" nil t)
1751 ;; Hide the actual signature.
1752 (and (search-forward "\n-----BEGIN PGP SIGNATURE-----\n" nil t)
1753 (setq end (1+ (match-beginning 0)))
1756 (if (search-forward "\n-----END PGP SIGNATURE-----\n" nil t)
1758 ;; Perhaps we shouldn't hide to the end of the buffer
1759 ;; if there is no end to the signature?
1761 ;; Hide "- " PGP quotation markers.
1763 (narrow-to-region beg end)
1764 (goto-char (point-min))
1765 (while (re-search-forward "^- " nil t)
1767 (match-beginning 0) (match-end 0)))
1769 (gnus-run-hooks 'gnus-article-hide-pgp-hook))))))
1771 (defun article-hide-pem (&optional arg)
1772 "Toggle hiding of any PEM headers and signatures in the current article.
1773 If given a negative prefix, always show; if given a positive prefix,
1775 (interactive (gnus-article-hidden-arg))
1776 (unless (gnus-article-check-hidden-text 'pem arg)
1778 (let (buffer-read-only end)
1779 (goto-char (point-min))
1780 ;; Hide the horrendously ugly "header".
1781 (when (and (search-forward
1782 "\n-----BEGIN PRIVACY-ENHANCED MESSAGE-----\n"
1784 (setq end (1+ (match-beginning 0))))
1785 (push 'pem gnus-article-wash-types)
1786 (gnus-article-hide-text-type
1788 (if (search-forward "\n\n" nil t)
1792 ;; Hide the trailer as well
1793 (when (search-forward "\n-----END PRIVACY-ENHANCED MESSAGE-----\n"
1795 (gnus-article-hide-text-type
1796 (match-beginning 0) (match-end 0) 'pem)))))))
1798 (defun article-strip-banner ()
1799 "Strip the banner specified by the `banner' group parameter."
1803 (let ((inhibit-point-motion-hooks t)
1804 (banner (gnus-group-get-parameter gnus-newsgroup-name 'banner))
1805 (gnus-signature-limit nil)
1806 buffer-read-only beg end)
1810 ((eq banner 'signature)
1811 (when (gnus-article-narrow-to-signature)
1814 (delete-region (point) (point-max))))
1816 (while (re-search-forward banner nil t)
1817 (delete-region (match-beginning 0) (match-end 0))))))))))
1819 (defun article-babel ()
1820 "Translate article using an online translation service."
1824 (set-buffer gnus-article-buffer)
1825 (when (article-goto-body)
1826 (let* ((buffer-read-only nil)
1829 (orig (buffer-substring start end))
1830 (trans (babel-as-string orig)))
1832 (narrow-to-region start end)
1833 (delete-region start end)
1836 (defun article-hide-signature (&optional arg)
1837 "Hide the signature in the current article.
1838 If given a negative prefix, always show; if given a positive prefix,
1840 (interactive (gnus-article-hidden-arg))
1846 (article-goto-body))
1847 (goto-char (point-min)))
1848 (unless (gnus-article-check-hidden-text 'signature arg)
1849 (let ((buffer-read-only nil)
1851 (while (setq button (text-property-any button (point-max)
1853 'gnus-signature-toggle))
1854 (setq button (text-property-not-all button (point-max)
1856 'gnus-signature-toggle))
1857 (when (and button (not (eobp)))
1858 (gnus-article-hide-text-type
1860 (next-single-property-change (1+ button) 'mime-view-entity
1864 (defun article-strip-headers-in-body ()
1865 "Strip offensive headers from bodies."
1869 (let ((case-fold-search t))
1870 (when (looking-at "x-no-archive:")
1871 (gnus-delete-line)))))
1873 (defun article-strip-leading-blank-lines ()
1874 "Remove all blank lines from the beginning of the article."
1877 (let ((inhibit-point-motion-hooks t)
1879 (when (article-goto-body)
1880 (while (and (not (eobp))
1881 (looking-at "[ \t]*$"))
1882 (gnus-delete-line))))))
1884 (defun article-narrow-to-head ()
1885 "Narrow the buffer to the head of the message.
1886 Point is left at the beginning of the narrowed-to region."
1888 (goto-char (point-min))
1889 (if (search-forward "\n\n" nil 1)
1892 (goto-char (point-min)))
1894 (defun article-goto-body ()
1895 "Place point at the start of the body."
1896 (goto-char (point-min))
1898 ;; This variable is only bound when dealing with separate
1900 (article-goto-body-goes-to-point-min-p
1902 ((search-forward "\n\n" nil t)
1905 (goto-char (point-max))
1908 (defun article-strip-multiple-blank-lines ()
1909 "Replace consecutive blank lines with one empty line."
1912 (let ((inhibit-point-motion-hooks t)
1914 ;; First make all blank lines empty.
1916 (while (re-search-forward "^[ \t]+$" nil t)
1917 (unless (gnus-annotation-in-region-p
1918 (match-beginning 0) (match-end 0))
1919 (replace-match "" nil t)))
1920 ;; Then replace multiple empty lines with a single empty line.
1922 (while (re-search-forward "\n\n\n+" nil t)
1923 (unless (gnus-annotation-in-region-p
1924 (match-beginning 0) (match-end 0))
1925 (replace-match "\n\n" t t))))))
1927 (defun article-strip-leading-space ()
1928 "Remove all white space from the beginning of the lines in the article."
1931 (let ((inhibit-point-motion-hooks t)
1934 (while (re-search-forward "^[ \t]+" nil t)
1935 (replace-match "" t t)))))
1937 (defun article-strip-trailing-space ()
1938 "Remove all white space from the end of the lines in the article."
1941 (let ((inhibit-point-motion-hooks t)
1944 (while (re-search-forward "[ \t]+$" nil t)
1945 (replace-match "" t t)))))
1947 (defun article-strip-blank-lines ()
1948 "Strip leading, trailing and multiple blank lines."
1950 (article-strip-leading-blank-lines)
1951 (article-remove-trailing-blank-lines)
1952 (article-strip-multiple-blank-lines))
1954 (defun article-strip-all-blank-lines ()
1955 "Strip all blank lines."
1958 (let ((inhibit-point-motion-hooks t)
1961 (while (re-search-forward "^[ \t]*\n" nil t)
1962 (replace-match "" t t)))))
1964 (defun gnus-article-narrow-to-signature ()
1965 "Narrow to the signature; return t if a signature is found, else nil."
1966 (let ((inhibit-point-motion-hooks t))
1967 (when (gnus-article-search-signature)
1969 ;; Check whether we have some limits to what we consider
1970 ;; to be a signature.
1971 (let ((limits (if (listp gnus-signature-limit) gnus-signature-limit
1972 (list gnus-signature-limit)))
1974 (while (setq limit (pop limits))
1975 (if (or (and (integerp limit)
1976 (< (- (point-max) (point)) limit))
1978 (< (count-lines (point) (point-max)) limit))
1979 (and (gnus-functionp limit)
1981 (and (stringp limit)
1982 (not (re-search-forward limit nil t))))
1983 () ; This limit did not succeed.
1987 (narrow-to-region (point) (point-max))
1990 (defun gnus-article-search-signature ()
1991 "Search the current buffer for the signature separator.
1992 Put point at the beginning of the signature separator."
1993 (let ((cur (point)))
1994 (goto-char (point-max))
1995 (if (if (stringp gnus-signature-separator)
1996 (re-search-backward gnus-signature-separator nil t)
1997 (let ((seps gnus-signature-separator))
1999 (not (re-search-backward (car seps) nil t)))
2006 (defun gnus-article-hidden-arg ()
2007 "Return the current prefix arg as a number, or 0 if no prefix."
2008 (list (if current-prefix-arg
2009 (prefix-numeric-value current-prefix-arg)
2012 (defun gnus-article-check-hidden-text (type arg)
2013 "Return nil if hiding is necessary.
2014 Arg can be nil or a number. Nil and positive means hide, negative
2015 means show, 0 means toggle."
2018 (let ((hide (gnus-article-hidden-text-p type)))
2024 (gnus-article-show-hidden-text type))
2026 (if (eq hide 'hidden)
2027 (gnus-article-show-hidden-text type)
2030 (defun gnus-article-hidden-text-p (type)
2031 "Say whether the current buffer contains hidden text of type TYPE."
2032 (let ((pos (text-property-any (point-min) (point-max) 'article-type type)))
2034 (not (get-text-property pos 'invisible))
2035 (not (get-text-property pos 'dummy-invisible)))
2037 (text-property-any (1+ pos) (point-max) 'article-type type)))
2042 (defun gnus-article-show-hidden-text (type &optional hide)
2043 "Show all hidden text of type TYPE.
2044 If HIDE, hide the text instead."
2046 (let ((buffer-read-only nil)
2047 (inhibit-point-motion-hooks t)
2050 (while (setq beg (text-property-any end (point-max) 'article-type type))
2053 (text-property-not-all beg (point-max) 'article-type type)
2056 (gnus-article-hide-text beg end gnus-hidden-properties)
2057 (gnus-article-unhide-text beg end))
2061 (defconst article-time-units
2062 `((year . ,(* 365.25 24 60 60))
2063 (week . ,(* 7 24 60 60))
2064 (day . ,(* 24 60 60))
2068 "Mapping from time units to seconds.")
2070 (defun article-date-ut (&optional type highlight header)
2071 "Convert DATE date to universal time in the current article.
2072 If TYPE is `local', convert to local time; if it is `lapsed', output
2073 how much time has lapsed since DATE. For `lapsed', the value of
2074 `gnus-article-date-lapsed-new-header' says whether the \"X-Sent:\" header
2075 should replace the \"Date:\" one, or should be added below it."
2076 (interactive (list 'ut t))
2077 (let* ((header (or header
2078 (and (eq 1 (point-min))
2079 (mail-header-date (save-excursion
2080 (set-buffer gnus-summary-buffer)
2081 gnus-current-headers)))
2082 (message-fetch-field "date")
2084 (date (if (vectorp header) (mail-header-date header)
2086 (inhibit-point-motion-hooks t)
2087 bface eface date-pos)
2088 (when (and date (not (string= date "")))
2091 (article-narrow-to-head)
2092 (when (or (and (eq type 'lapsed)
2093 gnus-article-date-lapsed-new-header
2094 ;; Attempt to get the face of X-Sent first.
2095 (re-search-forward "^X-Sent:[ \t]" nil t))
2096 (re-search-forward "^Date:[ \t]" nil t)
2097 ;; If Date is missing, try again for X-Sent.
2098 (re-search-forward "^X-Sent:[ \t]" nil t))
2099 (setq bface (get-text-property (gnus-point-at-bol) 'face)
2100 date (or (get-text-property (gnus-point-at-bol)
2103 eface (get-text-property (1- (gnus-point-at-eol))
2105 (let ((buffer-read-only nil))
2106 ;; Delete any old X-Sent headers.
2107 (when (setq date-pos
2108 (text-property-any (point-min) (point-max)
2109 'article-date-lapsed t))
2110 (goto-char (setq date-pos (set-marker (make-marker) date-pos)))
2111 (delete-region (match-beginning 0)
2112 (progn (forward-line 1) (point))))
2113 (goto-char (point-min))
2114 ;; Delete any old Date headers.
2115 (while (re-search-forward "^Date:[ \t]" nil t)
2117 (setq date-pos (match-beginning 0)))
2118 (unless (and (eq type 'lapsed)
2119 gnus-article-date-lapsed-new-header)
2120 (delete-region (match-beginning 0)
2121 (progn (message-next-header) (point)))))
2124 (goto-char date-pos)
2126 ;; Possibly, Date has been deleted.
2128 (when (and (eq type 'lapsed)
2129 gnus-article-date-lapsed-new-header
2130 (looking-at "Date:"))
2132 (goto-char (point-min)))
2133 (insert (article-make-date-line date type))
2134 (when (eq type 'lapsed)
2135 (put-text-property (gnus-point-at-bol) (point)
2136 'article-date-lapsed t))
2140 (when (looking-at "\\([^:]+\\): *\\(.*\\)$")
2141 (put-text-property (match-beginning 1) (1+ (match-end 1))
2142 'original-date date)
2143 (put-text-property (match-beginning 1) (1+ (match-end 1))
2145 (put-text-property (match-beginning 2) (match-end 2)
2148 (defun article-make-date-line (date type)
2149 "Return a DATE line of TYPE."
2150 (let ((time (condition-case ()
2154 ;; Convert to the local timezone. We have to slap a
2155 ;; `condition-case' round the calls to the timezone
2156 ;; functions since they aren't particularly resistant to
2159 (let ((tz (car (current-time-zone time))))
2160 (format "Date: %s %s%02d%02d" (current-time-string time)
2161 (if (> tz 0) "+" "-") (/ (abs tz) 3600)
2162 (/ (% (abs tz) 3600) 60))))
2163 ;; Convert to Universal Time.
2166 (current-time-string
2167 (let* ((e (parse-time-string date))
2168 (tm (apply 'encode-time e))
2170 (ls (- (cadr tm) (car (current-time-zone time)))))
2171 (cond ((< ls 0) (list (1- ms) (+ ls 65536)))
2172 ((> ls 65535) (list (1+ ms) (- ls 65536)))
2175 ;; Get the original date from the article.
2176 ((eq type 'original)
2177 (concat "Date: " (if (string-match "\n+$" date)
2178 (substring date 0 (match-beginning 0))
2180 ;; Let the user define the format.
2182 (if (gnus-functionp gnus-article-time-format)
2183 (funcall gnus-article-time-format time)
2186 (format-time-string gnus-article-time-format time))))
2189 (let ((tz (car (current-time-zone time))))
2192 (format-time-string "%Y%m%dT%H%M%S" time)
2193 (format "%s%02d%02d"
2194 (if (> tz 0) "+" "-") (/ (abs tz) 3600)
2195 (/ (% (abs tz) 3600) 60)))))
2196 ;; Do an X-Sent lapsed format.
2198 ;; If the date is seriously mangled, the timezone functions are
2199 ;; liable to bug out, so we ignore all errors.
2200 (let* ((now (current-time))
2201 (real-time (subtract-time now time))
2202 (real-sec (and real-time
2203 (+ (* (float (car real-time)) 65536)
2205 (sec (and real-time (abs real-sec)))
2215 ;; This is a bit convoluted, but basically we go
2216 ;; through the time units for years, weeks, etc,
2217 ;; and divide things to see whether that results
2218 ;; in positive answers.
2221 (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
2222 ;; The (remaining) seconds are too few to
2223 ;; be divided into this time unit.
2225 ;; It's big enough, so we output it.
2226 (setq sec (- sec (* num (cdr unit))))
2228 (concat (if prev ", " "") (int-to-string
2230 " " (symbol-name (car unit))
2231 (if (> num 1) "s" ""))
2233 article-time-units "")
2234 ;; If dates are odd, then it might appear like the
2235 ;; article was sent in the future.
2238 " in the future"))))))
2240 (error "Unknown conversion type: %s" type)))))
2242 (defun article-date-local (&optional highlight)
2243 "Convert the current article date to the local timezone."
2244 (interactive (list t))
2245 (article-date-ut 'local highlight))
2247 (defun article-date-original (&optional highlight)
2248 "Convert the current article date to what it was originally.
2249 This is only useful if you have used some other date conversion
2250 function and want to see what the date was before converting."
2251 (interactive (list t))
2252 (article-date-ut 'original highlight))
2254 (defun article-date-lapsed (&optional highlight)
2255 "Convert the current article date to time lapsed since it was sent."
2256 (interactive (list t))
2257 (article-date-ut 'lapsed highlight))
2259 (defun article-update-date-lapsed ()
2260 "Function to be run from a timer to update the lapsed time line."
2261 (let (deactivate-mark)
2266 (set-buffer (window-buffer w))
2267 (when (eq major-mode 'gnus-article-mode)
2268 (goto-char (point-min))
2269 (when (re-search-forward "^X-Sent:" nil t)
2270 (article-date-lapsed t))))
2273 (defun gnus-start-date-timer (&optional n)
2274 "Start a timer to update the X-Sent header in the article buffers.
2275 The numerical prefix says how frequently (in seconds) the function
2280 (gnus-stop-date-timer)
2281 (setq article-lapsed-timer
2282 (nnheader-run-at-time 1 n 'article-update-date-lapsed)))
2284 (defun gnus-stop-date-timer ()
2285 "Stop the X-Sent timer."
2287 (when article-lapsed-timer
2288 (nnheader-cancel-timer article-lapsed-timer)
2289 (setq article-lapsed-timer nil)))
2291 (defun article-date-user (&optional highlight)
2292 "Convert the current article date to the user-defined format.
2293 This format is defined by the `gnus-article-time-format' variable."
2294 (interactive (list t))
2295 (article-date-ut 'user highlight))
2297 (defun article-date-iso8601 (&optional highlight)
2298 "Convert the current article date to ISO8601."
2299 (interactive (list t))
2300 (article-date-ut 'iso8601 highlight))
2302 (defun article-show-all ()
2303 "Show all hidden text in the article buffer."
2307 (let ((buffer-read-only nil))
2308 (gnus-article-unhide-text (point-min) (point-max))
2309 (gnus-remove-text-with-property 'gnus-prev)
2310 (gnus-remove-text-with-property 'gnus-next))))
2312 (defun article-show-all-headers ()
2313 "Show all hidden headers in the article buffer."
2318 (article-narrow-to-head)
2319 (let ((buffer-read-only nil))
2320 (gnus-article-unhide-text (point-min) (point-max))))))
2322 (defun article-emphasize (&optional arg)
2323 "Emphasize text according to `gnus-emphasis-alist'."
2324 (interactive (gnus-article-hidden-arg))
2325 (unless (gnus-article-check-hidden-text 'emphasis arg)
2329 (with-current-buffer gnus-summary-buffer
2330 gnus-article-emphasis-alist)
2332 gnus-emphasis-alist))
2333 (buffer-read-only nil)
2334 (props (append '(article-type emphasis)
2335 gnus-hidden-properties))
2336 regexp elem beg invisible visible face)
2339 (while (setq elem (pop alist))
2341 (setq regexp (car elem)
2342 invisible (nth 1 elem)
2343 visible (nth 2 elem)
2345 (while (re-search-forward regexp nil t)
2346 (when (and (match-beginning visible) (match-beginning invisible))
2347 (push 'emphasis gnus-article-wash-types)
2348 (gnus-article-hide-text
2349 (match-beginning invisible) (match-end invisible) props)
2350 (gnus-article-unhide-text-type
2351 (match-beginning visible) (match-end visible) 'emphasis)
2352 (gnus-put-text-property-excluding-newlines
2353 (match-beginning visible) (match-end visible) 'face face)
2354 (goto-char (match-end invisible)))))))))
2356 (defun gnus-article-setup-highlight-words (&optional highlight-words)
2357 "Setup newsgroup emphasis alist."
2358 (unless gnus-article-emphasis-alist
2359 (let ((name (and gnus-newsgroup-name
2360 (gnus-group-real-name gnus-newsgroup-name))))
2361 (make-local-variable 'gnus-article-emphasis-alist)
2362 (setq gnus-article-emphasis-alist
2364 (let ((alist gnus-group-highlight-words-alist) elem highlight)
2365 (while (setq elem (pop alist))
2366 (when (and name (string-match (car elem) name))
2368 highlight (copy-sequence (cdr elem)))))
2370 (copy-sequence highlight-words)
2371 (if gnus-newsgroup-name
2372 (copy-sequence (gnus-group-find-parameter
2373 gnus-newsgroup-name 'highlight-words t)))
2374 gnus-emphasis-alist)))))
2376 (defvar gnus-summary-article-menu)
2377 (defvar gnus-summary-post-menu)
2379 ;;; Saving functions.
2381 (defun gnus-article-save (save-buffer file &optional num)
2382 "Save the currently selected article."
2383 (unless gnus-save-all-headers
2384 ;; Remove headers according to `gnus-saved-headers'.
2385 (let ((gnus-visible-headers
2386 (or gnus-saved-headers gnus-visible-headers))
2387 (gnus-article-buffer save-buffer))
2389 (set-buffer save-buffer)
2390 (article-hide-headers 1 t))))
2391 (save-window-excursion
2392 (if (not gnus-default-article-saver)
2393 (error "No default saver is defined")
2394 ;; !!! Magic! The saving functions all save
2395 ;; `gnus-save-article-buffer' (or so they think), but we
2396 ;; bind that variable to our save-buffer.
2397 (set-buffer gnus-article-buffer)
2398 (let* ((gnus-save-article-buffer save-buffer)
2401 ((not gnus-prompt-before-saving) 'default)
2402 ((eq gnus-prompt-before-saving 'always) nil)
2404 (gnus-number-of-articles-to-be-saved
2405 (when (eq gnus-prompt-before-saving t)
2407 (set-buffer gnus-article-current-summary)
2408 (funcall gnus-default-article-saver filename)))))
2410 (defun gnus-read-save-file-name (prompt &optional filename
2411 function group headers variable)
2413 (funcall function group headers (symbol-value variable)))
2418 ((eq filename 'default)
2424 (let* ((split-name (gnus-get-split-value gnus-split-methods))
2427 (if (and gnus-number-of-articles-to-be-saved
2428 (> gnus-number-of-articles-to-be-saved 1))
2429 (format "these %d articles"
2430 gnus-number-of-articles-to-be-saved)
2433 ;; Let the split methods have their say.
2435 ;; No split name was found.
2438 (concat prompt " (default "
2439 (file-name-nondirectory default-name) ") ")
2440 (file-name-directory default-name)
2442 ;; A single group name is returned.
2443 ((stringp split-name)
2445 (funcall function split-name headers
2446 (symbol-value variable)))
2448 (concat prompt " (default "
2449 (file-name-nondirectory default-name) ") ")
2450 (file-name-directory default-name)
2452 ;; A single split name was found
2453 ((= 1 (length split-name))
2454 (let* ((name (expand-file-name
2455 (car split-name) gnus-article-save-directory))
2456 (dir (cond ((file-directory-p name)
2457 (file-name-as-directory name))
2458 ((file-exists-p name) name)
2459 (t gnus-article-save-directory))))
2461 (concat prompt " (default " name ") ")
2463 ;; A list of splits was found.
2465 (setq split-name (nreverse split-name))
2467 (let ((file-name-history
2468 (nconc split-name file-name-history)))
2472 (concat prompt " (`M-p' for defaults) ")
2473 gnus-article-save-directory
2475 gnus-article-save-directory)))
2476 (car (push result file-name-history)))))))
2477 ;; Create the directory.
2478 (gnus-make-directory (file-name-directory file))
2479 ;; If we have read a directory, we append the default file name.
2480 (when (file-directory-p file)
2481 (setq file (concat (file-name-as-directory file)
2482 (file-name-nondirectory default-name))))
2483 ;; Possibly translate some characters.
2484 (nnheader-translate-file-chars file)))))
2485 (gnus-make-directory (file-name-directory result))
2486 (set variable result)))
2488 (defun gnus-article-archive-name (group)
2489 "Return the first instance of an \"Archive-name\" in the current buffer."
2490 (let ((case-fold-search t))
2491 (when (re-search-forward "archive-name: *\\([^ \n\t]+\\)[ \t]*$" nil t)
2492 (nnheader-concat gnus-article-save-directory
2493 (match-string 1)))))
2495 (defun gnus-article-nndoc-name (group)
2496 "If GROUP is an nndoc group, return the name of the parent group."
2497 (when (eq (car (gnus-find-method-for-group group)) 'nndoc)
2498 (gnus-group-get-parameter group 'save-article-group)))
2500 (defun gnus-summary-save-in-rmail (&optional filename)
2501 "Append this article to Rmail file.
2502 Optional argument FILENAME specifies file name.
2503 Directory to save to is default to `gnus-article-save-directory'."
2504 (setq filename (gnus-read-save-file-name
2505 "Save %s in rmail file:" filename
2506 gnus-rmail-save-name gnus-newsgroup-name
2507 gnus-current-headers 'gnus-newsgroup-last-rmail))
2508 (gnus-eval-in-buffer-window gnus-save-article-buffer
2512 (gnus-output-to-rmail filename))))
2515 (defun gnus-summary-save-in-mail (&optional filename)
2516 "Append this article to Unix mail file.
2517 Optional argument FILENAME specifies file name.
2518 Directory to save to is default to `gnus-article-save-directory'."
2519 (setq filename (gnus-read-save-file-name
2520 "Save %s in Unix mail file:" filename
2521 gnus-mail-save-name gnus-newsgroup-name
2522 gnus-current-headers 'gnus-newsgroup-last-mail))
2523 (gnus-eval-in-buffer-window gnus-save-article-buffer
2527 (if (and (file-readable-p filename)
2528 (mail-file-babyl-p filename))
2529 (rmail-output-to-rmail-file filename t)
2530 (gnus-output-to-mail filename)))))
2533 (defun gnus-summary-save-in-file (&optional filename overwrite)
2534 "Append this article to file.
2535 Optional argument FILENAME specifies file name.
2536 Directory to save to is default to `gnus-article-save-directory'."
2537 (setq filename (gnus-read-save-file-name
2538 "Save %s in file:" filename
2539 gnus-file-save-name gnus-newsgroup-name
2540 gnus-current-headers 'gnus-newsgroup-last-file))
2541 (gnus-eval-in-buffer-window gnus-save-article-buffer
2545 (when (and overwrite
2546 (file-exists-p filename))
2547 (delete-file filename))
2548 (gnus-output-to-file filename))))
2551 (defun gnus-summary-write-to-file (&optional filename)
2552 "Write this article to a file.
2553 Optional argument FILENAME specifies file name.
2554 The directory to save in defaults to `gnus-article-save-directory'."
2555 (gnus-summary-save-in-file nil t))
2557 (defun gnus-summary-save-body-in-file (&optional filename)
2558 "Append this article body to a file.
2559 Optional argument FILENAME specifies file name.
2560 The directory to save in defaults to `gnus-article-save-directory'."
2561 (setq filename (gnus-read-save-file-name
2562 "Save %s body in file:" filename
2563 gnus-file-save-name gnus-newsgroup-name
2564 gnus-current-headers 'gnus-newsgroup-last-file))
2565 (gnus-eval-in-buffer-window gnus-save-article-buffer
2569 (when (article-goto-body)
2570 (narrow-to-region (point) (point-max)))
2571 (gnus-output-to-file filename))))
2574 (defun gnus-summary-save-in-pipe (&optional command)
2575 "Pipe this article to subprocess."
2577 (cond ((and (eq command 'default)
2578 gnus-last-shell-command)
2579 gnus-last-shell-command)
2583 "Shell command on %s: "
2584 (if (and gnus-number-of-articles-to-be-saved
2585 (> gnus-number-of-articles-to-be-saved 1))
2586 (format "these %d articles"
2587 gnus-number-of-articles-to-be-saved)
2589 gnus-last-shell-command))))
2590 (when (string-equal command "")
2591 (setq command gnus-last-shell-command))
2592 (gnus-eval-in-buffer-window gnus-article-buffer
2595 (shell-command-on-region (point-min) (point-max) command nil)))
2596 (setq gnus-last-shell-command command))
2598 ;;; Article file names when saving.
2600 (defun gnus-capitalize-newsgroup (newsgroup)
2601 "Capitalize NEWSGROUP name."
2602 (when (not (zerop (length newsgroup)))
2603 (concat (char-to-string (upcase (aref newsgroup 0)))
2604 (substring newsgroup 1))))
2606 (defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
2607 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2608 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
2609 Otherwise, it is like ~/News/news/group/num."
2612 (concat (if (gnus-use-long-file-name 'not-save)
2613 (gnus-capitalize-newsgroup newsgroup)
2614 (gnus-newsgroup-directory-form newsgroup))
2615 "/" (int-to-string (mail-header-number headers)))
2616 gnus-article-save-directory)))
2618 (string-equal (file-name-directory default)
2619 (file-name-directory last-file))
2620 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
2622 (or last-file default))))
2624 (defun gnus-numeric-save-name (newsgroup headers &optional last-file)
2625 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2626 If variable `gnus-use-long-file-name' is non-nil, it is
2627 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
2630 (concat (if (gnus-use-long-file-name 'not-save)
2632 (gnus-newsgroup-directory-form newsgroup))
2633 "/" (int-to-string (mail-header-number headers)))
2634 gnus-article-save-directory)))
2636 (string-equal (file-name-directory default)
2637 (file-name-directory last-file))
2638 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
2640 (or last-file default))))
2642 (defun gnus-Plain-save-name (newsgroup headers &optional last-file)
2643 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2644 If variable `gnus-use-long-file-name' is non-nil, it is
2645 ~/News/News.group. Otherwise, it is like ~/News/news/group/news."
2648 (if (gnus-use-long-file-name 'not-save)
2649 (gnus-capitalize-newsgroup newsgroup)
2650 (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
2651 gnus-article-save-directory)))
2653 (defun gnus-plain-save-name (newsgroup headers &optional last-file)
2654 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2655 If variable `gnus-use-long-file-name' is non-nil, it is
2656 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
2659 (if (gnus-use-long-file-name 'not-save)
2661 (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
2662 gnus-article-save-directory)))
2669 (setq afunc (car func)
2672 gfunc (intern (format "gnus-%s" func))))
2675 `(lambda (&optional interactive &rest args)
2676 ,(documentation afunc t)
2677 (interactive (list t))
2679 (set-buffer gnus-article-buffer)
2681 (call-interactively ',afunc)
2682 (apply ',afunc args))))))))
2683 '(article-hide-headers
2684 article-hide-boring-headers
2685 article-toggle-headers
2686 article-treat-overstrike
2687 article-fill-long-lines
2688 article-capitalize-sentences
2690 article-display-x-face
2691 article-de-quoted-unreadable
2692 article-de-base64-unreadable
2695 article-hide-list-identifiers
2697 article-strip-banner
2700 article-hide-signature
2701 article-strip-headers-in-body
2702 article-remove-trailing-blank-lines
2703 article-strip-leading-blank-lines
2704 article-strip-multiple-blank-lines
2705 article-strip-leading-space
2706 article-strip-trailing-space
2707 article-strip-blank-lines
2708 article-strip-all-blank-lines
2710 article-date-iso8601
2711 article-date-original
2713 article-decode-mime-words
2714 article-decode-charset
2715 article-decode-encoded-words
2719 article-treat-dumbquotes
2720 article-normalize-headers
2721 (article-show-all-headers . gnus-article-show-all-headers)
2722 (article-show-all . gnus-article-show-all))))
2725 ;;; Gnus article mode
2728 (put 'gnus-article-mode 'mode-class 'special)
2730 (gnus-define-keys gnus-article-mode-map
2731 " " gnus-article-goto-next-page
2732 "\177" gnus-article-goto-prev-page
2733 [delete] gnus-article-goto-prev-page
2734 [backspace] gnus-article-goto-prev-page
2735 "\C-c^" gnus-article-refer-article
2736 "h" gnus-article-show-summary
2737 "s" gnus-article-show-summary
2738 "\C-c\C-m" gnus-article-mail
2739 "?" gnus-article-describe-briefly
2740 "e" gnus-summary-edit-article
2741 "<" beginning-of-buffer
2743 "\C-c\C-i" gnus-info-find-node
2746 "\C-d" gnus-article-read-summary-keys
2747 "\M-*" gnus-article-read-summary-keys
2748 "\M-#" gnus-article-read-summary-keys
2749 "\M-^" gnus-article-read-summary-keys
2750 "\M-g" gnus-article-read-summary-keys)
2752 ;; Define almost undefined keys to `gnus-article-read-summary-keys'.
2755 (unless (lookup-key gnus-article-mode-map key)
2756 (define-key gnus-article-mode-map key
2757 'gnus-article-read-summary-keys)))
2762 (let ((key (car elt)))
2763 (and (> (length key) 0)
2764 (not (eq 'menu-bar (aref key 0)))
2765 (symbolp (lookup-key gnus-summary-mode-map key))
2767 (accessible-keymaps gnus-summary-mode-map))
2771 (push (char-to-string c) keys)
2775 (defun gnus-article-make-menu-bar ()
2776 (gnus-turn-off-edit-menu 'article)
2777 (unless (boundp 'gnus-article-article-menu)
2779 gnus-article-article-menu gnus-article-mode-map ""
2781 ["Scroll forwards" gnus-article-goto-next-page t]
2782 ["Scroll backwards" gnus-article-goto-prev-page t]
2783 ["Show summary" gnus-article-show-summary t]
2784 ["Fetch Message-ID at point" gnus-article-refer-article t]
2785 ["Mail to address at point" gnus-article-mail t]
2786 ["Send a bug report" gnus-bug t]))
2789 gnus-article-treatment-menu gnus-article-mode-map ""
2791 ["Hide headers" gnus-article-toggle-headers t]
2792 ["Hide signature" gnus-article-hide-signature t]
2793 ["Hide citation" gnus-article-hide-citation t]
2794 ["Treat overstrike" gnus-article-treat-overstrike t]
2795 ["Remove carriage return" gnus-article-remove-cr t]
2796 ["Decode HZ" gnus-article-decode-HZ t]))
2798 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
2800 (when (boundp 'gnus-summary-post-menu)
2801 (define-key gnus-article-mode-map [menu-bar post]
2802 (cons "Post" gnus-summary-post-menu)))
2804 (gnus-run-hooks 'gnus-article-menu-hook)))
2806 (defun gnus-article-mode ()
2807 "Major mode for displaying an article.
2809 All normal editing commands are switched off.
2811 The following commands are available in addition to all summary mode
2813 \\<gnus-article-mode-map>
2814 \\[gnus-article-next-page]\t Scroll the article one page forwards
2815 \\[gnus-article-prev-page]\t Scroll the article one page backwards
2816 \\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
2817 \\[gnus-article-show-summary]\t Display the summary buffer
2818 \\[gnus-article-mail]\t Send a reply to the address near point
2819 \\[gnus-article-describe-briefly]\t Describe the current mode briefly
2820 \\[gnus-info-find-node]\t Go to the Gnus info node"
2822 (when (gnus-visual-p 'article-menu 'menu)
2823 (gnus-article-make-menu-bar))
2824 (gnus-simplify-mode-line)
2825 (setq mode-name "Article")
2826 (setq major-mode 'gnus-article-mode)
2827 (make-local-variable 'minor-mode-alist)
2828 (unless (assq 'gnus-show-mime minor-mode-alist)
2829 (push (list 'gnus-show-mime " MIME") minor-mode-alist))
2830 (use-local-map gnus-article-mode-map)
2831 (gnus-update-format-specifications nil 'article-mode)
2832 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
2833 (make-local-variable 'gnus-page-broken)
2834 (make-local-variable 'gnus-button-marker-list)
2835 (make-local-variable 'gnus-article-current-summary)
2836 (make-local-variable 'gnus-article-mime-handles)
2837 (make-local-variable 'gnus-article-decoded-p)
2838 (make-local-variable 'gnus-article-mime-handle-alist)
2839 (make-local-variable 'gnus-article-wash-types)
2840 (gnus-set-default-directory)
2841 (buffer-disable-undo)
2842 (setq buffer-read-only t)
2843 (set-syntax-table gnus-article-mode-syntax-table)
2844 (gnus-run-hooks 'gnus-article-mode-hook))
2846 (defun gnus-article-setup-buffer ()
2847 "Initialize the article buffer."
2848 (let* ((name (if gnus-single-article-buffer "*Article*"
2849 (concat "*Article " gnus-newsgroup-name "*")))
2851 (progn (string-match "\\*Article" name)
2852 (concat " *Original Article"
2853 (substring name (match-end 0))))))
2854 (setq gnus-article-buffer name)
2855 (setq gnus-original-article-buffer original)
2856 (setq gnus-article-mime-handle-alist nil)
2857 ;; This might be a variable local to the summary buffer.
2858 (unless gnus-single-article-buffer
2860 (set-buffer gnus-summary-buffer)
2861 (setq gnus-article-buffer name)
2862 (setq gnus-original-article-buffer original)
2863 (gnus-set-global-variables)))
2864 (gnus-article-setup-highlight-words)
2865 ;; Init original article buffer.
2867 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
2868 (setq major-mode 'gnus-original-article-mode)
2869 (make-local-variable 'gnus-original-article))
2870 (if (get-buffer name)
2873 (buffer-disable-undo)
2874 (setq buffer-read-only t)
2875 (unless (eq major-mode 'gnus-article-mode)
2876 (gnus-article-mode))
2879 (set-buffer (gnus-get-buffer-create name))
2881 (make-local-variable 'gnus-summary-buffer)
2882 (gnus-summary-set-local-parameters gnus-newsgroup-name)
2883 (current-buffer)))))
2885 ;; Set article window start at LINE, where LINE is the number of lines
2886 ;; from the head of the article.
2887 (defun gnus-article-set-window-start (&optional line)
2889 (get-buffer-window gnus-article-buffer t)
2891 (set-buffer gnus-article-buffer)
2892 (goto-char (point-min))
2895 (gnus-message 6 "Moved to bookmark")
2896 (search-forward "\n\n" nil t)
2900 ;;; @@ article filters
2903 (defun gnus-article-display-mime-message ()
2904 "Article display method for MIME message."
2905 ;; called from `gnus-original-article-buffer'.
2906 (let (charset all-headers)
2907 (with-current-buffer gnus-summary-buffer
2908 (setq charset default-mime-charset
2909 all-headers gnus-have-all-headers))
2910 (make-local-variable 'default-mime-charset)
2911 (setq default-mime-charset charset)
2912 (with-current-buffer (get-buffer-create gnus-article-buffer)
2913 (make-local-variable 'default-mime-charset)
2914 (setq default-mime-charset charset))
2915 (mime-display-message mime-message-structure
2916 gnus-article-buffer nil gnus-article-mode-map)
2918 (gnus-article-hide-headers nil -1))
2920 ;; `mime-display-message' changes current buffer to `gnus-article-buffer'.
2921 (make-local-variable 'mime-button-mother-dispatcher)
2922 (setq mime-button-mother-dispatcher
2923 (function gnus-article-push-button))
2924 (run-hooks 'gnus-mime-article-prepare-hook))
2926 (defun gnus-article-display-traditional-message ()
2927 "Article display method for traditional message."
2928 (set-buffer gnus-article-buffer)
2929 (let (buffer-read-only)
2931 (insert-buffer-substring gnus-original-article-buffer)))
2933 (defun gnus-article-make-full-mail-header (&optional number charset)
2934 "Create a new mail header structure in a raw article buffer."
2935 (unless (and number charset)
2936 (save-current-buffer
2937 (set-buffer gnus-summary-buffer)
2939 (setq number (or (cdr gnus-article-current) 0)))
2941 (setq charset (or default-mime-charset 'x-ctext)))))
2942 (goto-char (point-min))
2943 (let ((header-end (if (search-forward "\n\n" nil t)
2945 (goto-char (point-max))))
2946 (chars (- (point-max) (point)))
2947 (lines (count-lines (point) (point-max)))
2948 (default-mime-charset charset)
2950 (narrow-to-region (point-min) header-end)
2951 (setq xref (std11-fetch-field "xref"))
2953 (make-full-mail-header
2955 (std11-fetch-field "subject")
2956 (std11-fetch-field "from")
2957 (std11-fetch-field "date")
2958 (std11-fetch-field "message-id")
2959 (std11-fetch-field "references")
2962 (when xref (concat "Xref: " xref)))
2965 (defun gnus-article-prepare (article &optional all-headers header)
2966 "Prepare ARTICLE in article mode buffer.
2967 ARTICLE should either be an article number or a Message-ID.
2968 If ARTICLE is an id, HEADER should be the article headers.
2969 If ALL-HEADERS is non-nil, no headers are hidden."
2971 ;; Make sure we start in a summary buffer.
2972 (unless (eq major-mode 'gnus-summary-mode)
2973 (set-buffer gnus-summary-buffer))
2974 (setq gnus-summary-buffer (current-buffer))
2975 (let* ((gnus-article (if header (mail-header-number header) article))
2976 (summary-buffer (current-buffer))
2977 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
2978 (group gnus-newsgroup-name)
2981 (gnus-article-setup-buffer)
2982 (set-buffer gnus-original-article-buffer)
2983 ;; Deactivate active regions.
2984 (when (and (boundp 'transient-mark-mode)
2985 transient-mark-mode)
2986 (setq mark-active nil))
2987 (if (not (setq result (let ((buffer-read-only nil))
2988 (gnus-request-article-this-buffer
2990 ;; There is no such article.
2992 (when (and (numberp article)
2993 (not (memq article gnus-newsgroup-sparse)))
2994 (setq gnus-article-current
2995 (cons gnus-newsgroup-name article))
2996 (set-buffer gnus-summary-buffer)
2997 (setq gnus-current-article article)
2998 (if (eq (gnus-article-mark article) gnus-undownloaded-mark)
3000 (gnus-summary-set-agent-mark article)
3001 (message "Message marked for downloading"))
3002 (gnus-summary-mark-article article gnus-canceled-mark)
3003 (unless (memq article gnus-newsgroup-sparse)
3004 (gnus-error 1 "No such article (may have expired or been canceled)")))))
3005 (if (or (eq result 'pseudo)
3006 (eq result 'nneething))
3009 (set-buffer summary-buffer)
3010 (push article gnus-newsgroup-history)
3011 (setq gnus-last-article gnus-current-article
3012 gnus-current-article 0
3013 gnus-current-headers nil
3014 gnus-article-current nil)
3015 (if (eq result 'nneething)
3016 (gnus-configure-windows 'summary)
3017 (gnus-configure-windows 'article))
3018 (gnus-set-global-variables))
3019 (let ((gnus-article-mime-handle-alist-1
3020 gnus-article-mime-handle-alist))
3021 (gnus-set-mode-line 'article)))
3022 ;; The result from the `request' was an actual article -
3023 ;; or at least some text that is now displayed in the
3025 (when (and (numberp article)
3026 (not (eq article gnus-current-article)))
3027 ;; Seems like a new article has been selected.
3028 ;; `gnus-current-article' must be an article number.
3030 (set-buffer summary-buffer)
3031 (push article gnus-newsgroup-history)
3032 (setq gnus-last-article gnus-current-article
3033 gnus-current-article article
3034 gnus-current-headers
3035 (gnus-summary-article-header gnus-current-article)
3036 gnus-article-current
3037 (cons gnus-newsgroup-name gnus-current-article))
3038 (unless (vectorp gnus-current-headers)
3039 (setq gnus-current-headers nil))
3040 (gnus-summary-goto-subject gnus-current-article)
3041 (when (gnus-summary-show-thread)
3042 ;; If the summary buffer really was folded, the
3043 ;; previous goto may not actually have gone to
3044 ;; the right article, but the thread root instead.
3046 (gnus-summary-goto-subject gnus-current-article))
3047 (gnus-run-hooks 'gnus-mark-article-hook)
3048 (gnus-set-mode-line 'summary)
3049 (when (gnus-visual-p 'article-highlight 'highlight)
3050 (gnus-run-hooks 'gnus-visual-mark-article-hook))
3051 ;; Set the global newsgroup variables here.
3052 (gnus-set-global-variables)
3053 (setq gnus-have-all-headers
3054 (or all-headers gnus-show-all-headers))))
3055 (when (or (numberp article)
3057 (gnus-article-prepare-display)
3059 (goto-char (point-min))
3060 (setq gnus-page-broken
3061 (when gnus-break-pages
3062 (gnus-narrow-to-page)
3064 (let ((gnus-article-mime-handle-alist-1
3065 gnus-article-mime-handle-alist))
3066 (gnus-set-mode-line 'article))
3068 (set-window-point (get-buffer-window (current-buffer)) (point))
3069 (gnus-configure-windows 'article)
3072 (defun gnus-article-prepare-mime-display (&optional number)
3073 (goto-char (point-min))
3074 (when (re-search-forward "^[^\t ]+:" nil t)
3075 (goto-char (match-beginning 0)))
3076 (let ((entity (if (eq 1 (point-min))
3077 (get-text-property 1 'mime-view-entity)
3078 (get-text-property (point) 'mime-view-entity)))
3079 last-entity child-entity next type)
3080 (setq child-entity (mime-entity-children entity))
3082 (setq last-entity (nth (1- (length child-entity))
3084 (setq last-entity entity))
3086 (narrow-to-region (point)
3087 (if (search-forward "\n\n" nil t)
3090 (gnus-treat-article 'head)
3091 (put-text-property (point-min) (point-max) 'article-treated-header t)
3092 (goto-char (point-max)))
3093 (while (and (not (eobp)) entity)
3094 (setq next (set-marker
3096 (next-single-property-change (point) 'mime-view-entity
3098 (let ((types (mime-entity-content-type entity)))
3099 (while (eq 'multipart (mime-content-type-primary-type types))
3100 (setq entity (car (mime-entity-children entity))
3101 types (mime-entity-content-type entity)))
3103 (setq type (format "%s/%s"
3104 (mime-content-type-primary-type types)
3105 (mime-content-type-subtype types)))))
3106 (if (string-equal type "message/rfc822")
3109 (let ((children (mime-entity-children entity))
3112 (setq last-children (nth (1- (length children)) children))
3115 (not (eq last-children
3116 (get-text-property next 'mime-view-entity)))
3118 (next-single-property-change next
3120 nil (point-max)))))))
3121 (setq next (next-single-property-change next 'mime-view-entity
3124 (narrow-to-region (point) next)
3125 (gnus-article-prepare-mime-display)
3126 (goto-char (point-max)))
3127 (setq entity (get-text-property (point) 'mime-view-entity)))
3129 (narrow-to-region (point) next)
3130 ;; Kludge. We have to count true number, but for now,
3131 ;; part number is here only to achieve `last'.
3132 (gnus-treat-article nil 1
3133 (if (eq entity last-entity)
3136 (goto-char (point-max)))
3137 (setq entity (get-text-property next 'mime-view-entity))))))
3140 (defun gnus-article-prepare-display ()
3141 "Make the current buffer look like a nice article."
3142 (setq gnus-article-wash-types nil)
3143 (gnus-run-hooks 'gnus-tmp-internal-hook)
3144 (gnus-run-hooks 'gnus-article-prepare-hook)
3146 (let (mime-display-header-hook mime-display-text/plain-hook)
3147 (funcall (if gnus-show-mime
3149 (setq mime-message-structure gnus-current-headers)
3150 (mime-buffer-entity-set-buffer-internal
3151 mime-message-structure
3152 gnus-original-article-buffer)
3153 (mime-entity-set-representation-type-internal
3154 mime-message-structure 'mime-buffer-entity)
3155 (luna-send mime-message-structure
3156 'initialize-instance
3157 mime-message-structure)
3158 gnus-article-display-method-for-mime)
3159 gnus-article-display-method-for-traditional)))
3160 ;; Associate this article with the current summary buffer.
3161 (setq gnus-article-current-summary gnus-summary-buffer)
3162 ;; Call the treatment functions.
3163 (let ((inhibit-read-only t)
3168 (gnus-article-prepare-mime-display)
3169 (narrow-to-region (goto-char (point-min))
3170 (if (search-forward "\n\n" nil t)
3173 (gnus-treat-article 'head)
3174 (put-text-property (point-min) (point-max) 'article-treated-header t)
3175 (goto-char (point-max))
3177 (narrow-to-region (point) (point-max))
3178 (gnus-treat-article nil))
3179 (put-text-property (point-min) (point-max) 'read-only nil)))
3180 ;; Perform the article display hooks. Incidentally, this hook is
3181 ;; an obsolete variable by now.
3182 (gnus-run-hooks 'gnus-article-display-hook))
3184 (defun gnus-article-decode-article-as-default-mime-charset ()
3185 "Decode an article as `default-mime-charset'. It won't work if the
3186 value of the variable `gnus-show-mime' is non-nil."
3187 (unless gnus-show-mime
3188 (decode-mime-charset-region (point-min) (point-max)
3189 (with-current-buffer gnus-summary-buffer
3190 default-mime-charset))))
3193 ;;; Gnus MIME viewing functions
3196 (defvar gnus-mime-button-line-format "%{%([%p. %d%T]%)%}%e\n"
3197 "The following specs can be used:
3199 %T MIME type, along with additional info
3200 %n The `name' parameter
3201 %d The description, if any
3202 %l The length of the encoded part
3203 %p The part identifier number
3204 %e Dots if the part isn't displayed")
3206 (defvar gnus-mime-button-line-format-alist
3207 '((?t gnus-tmp-type ?s)
3208 (?T gnus-tmp-type-long ?s)
3209 (?n gnus-tmp-name ?s)
3210 (?d gnus-tmp-description ?s)
3212 (?l gnus-tmp-length ?d)
3213 (?e gnus-tmp-dots ?s)))
3215 (defvar gnus-mime-button-commands
3216 '((gnus-article-press-button "\r" "Toggle Display")
3217 (gnus-mime-view-part "v" "View Interactively...")
3218 (gnus-mime-view-part-as-type "t" "View As Type...")
3219 (gnus-mime-save-part "o" "Save...")
3220 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
3221 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
3222 (gnus-mime-internalize-part "E" "View Internally")
3223 (gnus-mime-externalize-part "e" "View Externally")
3224 (gnus-mime-pipe-part "|" "Pipe To Command...")))
3226 (defun gnus-article-mime-part-status ()
3227 (with-current-buffer gnus-article-buffer
3228 (let ((entity (get-text-property (point-min) 'mime-view-entity)))
3229 (if (and entity (mime-entity-children entity))
3230 (format " (%d parts)" (length (mime-entity-children entity)))
3233 (defvar gnus-mime-button-map nil)
3234 (unless gnus-mime-button-map
3235 (setq gnus-mime-button-map (make-sparse-keymap))
3236 (set-keymap-parent gnus-mime-button-map gnus-article-mode-map)
3237 (define-key gnus-mime-button-map gnus-mouse-2 'gnus-article-push-button)
3238 (define-key gnus-mime-button-map gnus-down-mouse-3 'gnus-mime-button-menu)
3240 (define-key gnus-mime-button-map (cadr c) (car c)))
3241 gnus-mime-button-commands))
3243 (defun gnus-mime-button-menu (event)
3244 "Construct a context-sensitive menu of MIME commands."
3247 (let ((pos (event-start event)))
3248 (set-buffer (window-buffer (posn-window pos)))
3249 (goto-char (posn-point pos))
3250 (gnus-article-check-buffer)
3251 (let ((response (x-popup-menu
3253 ("" ,@(mapcar (lambda (c)
3254 (cons (caddr c) (car c)))
3255 gnus-mime-button-commands))))))
3257 (call-interactively response))))))
3259 (defun gnus-mime-view-all-parts (&optional handles)
3260 "View all the MIME parts."
3262 (save-current-buffer
3263 (set-buffer gnus-article-buffer)
3264 (let ((handles (or handles gnus-article-mime-handles))
3265 (mail-parse-charset gnus-newsgroup-charset)
3266 (mail-parse-ignored-charsets
3267 (save-excursion (set-buffer gnus-summary-buffer)
3268 gnus-newsgroup-ignored-charsets)))
3269 (if (stringp (car handles))
3270 (gnus-mime-view-all-parts (cdr handles))
3271 (mapcar 'mm-display-part handles)))))
3273 (defun gnus-mime-save-part ()
3274 "Save the MIME part under point."
3276 (gnus-article-check-buffer)
3277 (let ((data (get-text-property (point) 'gnus-data)))
3278 (mm-save-part data)))
3280 (defun gnus-mime-pipe-part ()
3281 "Pipe the MIME part under point to a process."
3283 (gnus-article-check-buffer)
3284 (let ((data (get-text-property (point) 'gnus-data)))
3285 (mm-pipe-part data)))
3287 (defun gnus-mime-view-part ()
3288 "Interactively choose a viewing method for the MIME part under point."
3290 (gnus-article-check-buffer)
3291 (let ((data (get-text-property (point) 'gnus-data)))
3292 (mm-interactively-view-part data)))
3294 (defun gnus-mime-view-part-as-type-internal ()
3295 (gnus-article-check-buffer)
3296 (let* ((name (mail-content-type-get
3297 (mm-handle-type (get-text-property (point) 'gnus-data))
3299 (def-type (and name (mm-default-file-encoding name))))
3300 (and def-type (cons def-type 0))))
3302 (defun gnus-mime-view-part-as-type (mime-type)
3303 "Choose a MIME media type, and view the part as such."
3305 (list (completing-read
3306 "View as MIME type: "
3307 (mapcar (lambda (i) (list i i)) (mailcap-mime-types))
3309 (gnus-mime-view-part-as-type-internal))))
3310 (gnus-article-check-buffer)
3311 (let ((handle (get-text-property (point) 'gnus-data)))
3312 (gnus-mm-display-part
3313 (mm-make-handle (mm-handle-buffer handle)
3314 (cons mime-type (cdr (mm-handle-type handle)))
3315 (mm-handle-encoding handle)
3316 (mm-handle-undisplayer handle)
3317 (mm-handle-disposition handle)
3318 (mm-handle-description handle)
3319 (mm-handle-cache handle)
3320 (mm-handle-id handle)))))
3322 (defun gnus-mime-copy-part (&optional handle)
3323 "Put the the MIME part under point into a new buffer."
3325 (gnus-article-check-buffer)
3326 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3327 (contents (mm-get-part handle))|
3328 (base (file-name-nondirectory
3330 (mail-content-type-get (mm-handle-type handle) 'name)
3331 (mail-content-type-get (mm-handle-type handle)
3334 (buffer (generate-new-buffer base)))
3335 (switch-to-buffer buffer)
3337 ;; We do it this way to make `normal-mode' set the appropriate mode.
3340 (setq buffer-file-name (expand-file-name base))
3342 (setq buffer-file-name nil))
3343 (goto-char (point-min))))
3345 (defun gnus-mime-inline-part (&optional handle)
3346 "Insert the MIME part under point into the current buffer."
3348 (gnus-article-check-buffer)
3349 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3353 (if (mm-handle-undisplayer handle)
3354 (mm-remove-part handle)
3355 (setq contents (mm-get-part handle))
3357 (mm-insert-inline handle contents)
3360 (defun gnus-mime-externalize-part (&optional handle)
3361 "View the MIME part under point with an external viewer."
3363 (gnus-article-check-buffer)
3364 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3365 (mm-user-display-methods nil)
3366 (mm-inlined-types nil)
3367 (mail-parse-charset gnus-newsgroup-charset)
3368 (mail-parse-ignored-charsets
3369 (save-excursion (set-buffer gnus-summary-buffer)
3370 gnus-newsgroup-ignored-charsets)))
3371 (if (mm-handle-undisplayer handle)
3372 (mm-remove-part handle)
3373 (mm-display-part handle))))
3375 (defun gnus-mime-internalize-part (&optional handle)
3376 "View the MIME part under point with an internal viewer.
3377 In no internal viewer is available, use an external viewer."
3379 (gnus-article-check-buffer)
3380 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3381 (mm-inlined-types '(".*"))
3382 (mm-inline-large-images t)
3383 (mail-parse-charset gnus-newsgroup-charset)
3384 (mail-parse-ignored-charsets
3385 (save-excursion (set-buffer gnus-summary-buffer)
3386 gnus-newsgroup-ignored-charsets)))
3387 (if (mm-handle-undisplayer handle)
3388 (mm-remove-part handle)
3389 (mm-display-part handle))))
3391 (defun gnus-article-part-wrapper (n function)
3392 (save-current-buffer
3393 (set-buffer gnus-article-buffer)
3394 (when (> n (length gnus-article-mime-handle-alist))
3395 (error "No such part"))
3396 (gnus-article-goto-part n)
3397 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
3398 (funcall function handle))))
3400 (defun gnus-article-pipe-part (n)
3401 "Pipe MIME part N, which is the numerical prefix."
3403 (gnus-article-part-wrapper n 'mm-pipe-part))
3405 (defun gnus-article-save-part (n)
3406 "Save MIME part N, which is the numerical prefix."
3408 (gnus-article-part-wrapper n 'mm-save-part))
3410 (defun gnus-article-interactively-view-part (n)
3411 "View MIME part N interactively, which is the numerical prefix."
3413 (gnus-article-part-wrapper n 'mm-interactively-view-part))
3415 (defun gnus-article-copy-part (n)
3416 "Copy MIME part N, which is the numerical prefix."
3418 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
3420 (defun gnus-article-externalize-part (n)
3421 "View MIME part N externally, which is the numerical prefix."
3423 (gnus-article-part-wrapper n 'gnus-mime-externalize-part))
3425 (defun gnus-article-inline-part (n)
3426 "Inline MIME part N, which is the numerical prefix."
3428 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
3430 (defun gnus-article-mime-match-handle-first (condition)
3432 (let ((alist gnus-article-mime-handle-alist) ihandle n)
3433 (while (setq ihandle (pop alist))
3435 ((functionp condition)
3436 (funcall condition (cdr ihandle)))
3437 ((eq condition 'undisplayed)
3438 (not (or (mm-handle-undisplayer (cdr ihandle))
3439 (equal (mm-handle-media-type (cdr ihandle))
3440 "multipart/alternative"))))
3441 ((eq condition 'undisplayed-alternative)
3442 (not (mm-handle-undisplayer (cdr ihandle))))
3444 (gnus-article-goto-part (car ihandle))
3445 (or (not n) (< (car ihandle) n)))
3446 (setq n (car ihandle))))
3450 (defun gnus-article-view-part (&optional n)
3451 "View MIME part N, which is the numerical prefix."
3453 (save-current-buffer
3454 (set-buffer gnus-article-buffer)
3455 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
3456 gnus-article-mime-match-handle-function)))
3457 (when (> n (length gnus-article-mime-handle-alist))
3458 (error "No such part"))
3459 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
3460 (when (gnus-article-goto-part n)
3461 (if (equal (car handle) "multipart/alternative")
3462 (gnus-article-press-button)
3463 (when (eq (gnus-mm-display-part handle) 'internal)
3464 (gnus-set-window-start)))))))
3466 (defun gnus-mm-display-part (handle)
3467 "Display HANDLE and fix MIME button."
3468 (let ((id (get-text-property (point) 'gnus-part))
3473 (let ((window (selected-window))
3474 (mail-parse-charset gnus-newsgroup-charset)
3475 (mail-parse-ignored-charsets
3476 (save-excursion (set-buffer gnus-summary-buffer)
3477 gnus-newsgroup-ignored-charsets)))
3480 (let ((win (get-buffer-window (current-buffer) t))
3483 (select-window win))
3486 (if (mm-handle-displayed-p handle)
3487 ;; This will remove the part.
3488 (mm-display-part handle)
3490 (narrow-to-region (point) (1+ (point)))
3491 (mm-display-part handle)
3492 ;; We narrow to the part itself and
3493 ;; then call the treatment functions.
3494 (goto-char (point-min))
3496 (narrow-to-region (point) (point-max))
3499 (1- (length gnus-article-mime-handles))
3500 (mm-handle-media-type handle)))))
3501 (select-window window))))
3503 (delete-region (gnus-point-at-bol) (progn (forward-line 1) (point)))
3504 (gnus-insert-mime-button
3505 handle id (list (mm-handle-displayed-p handle)))
3506 (goto-char point))))
3508 (defun gnus-article-goto-part (n)
3509 "Go to MIME part N."
3510 (let ((point (text-property-any (point-min) (point-max) 'gnus-part n)))
3512 (goto-char point))))
3514 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
3515 (let ((gnus-tmp-name
3516 (or (mail-content-type-get (mm-handle-type handle)
3518 (mail-content-type-get (mm-handle-disposition handle)
3521 (gnus-tmp-type (mm-handle-media-type handle))
3522 (gnus-tmp-description
3523 (mail-decode-encoded-word-string (or (mm-handle-description handle)
3526 (if (if displayed (car displayed)
3527 (mm-handle-displayed-p handle))
3529 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
3531 gnus-tmp-type-long b e)
3532 (when (string-match ".*/" gnus-tmp-name)
3533 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
3534 (setq gnus-tmp-type-long (concat gnus-tmp-type
3535 (and (not (equal gnus-tmp-name ""))
3536 (concat "; " gnus-tmp-name))))
3537 (or (equal gnus-tmp-description "")
3538 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
3543 gnus-mime-button-line-format gnus-mime-button-line-format-alist
3544 `(local-map ,gnus-mime-button-map
3545 keymap ,gnus-mime-button-map
3546 gnus-callback gnus-mm-display-part
3547 gnus-part ,gnus-tmp-id
3548 article-type annotation
3551 (widget-convert-button 'link b e
3553 :action 'gnus-widget-press-button
3554 :button-keymap gnus-mime-button-map
3557 ;; Needed to properly clear the message
3558 ;; due to a bug in wid-edit
3559 (setq help-echo-owns-message t)
3561 "Click to %s the MIME part; %s for more options"
3562 (if (mm-handle-displayed-p
3563 (widget-get widget :mime-handle))
3565 (if gnus-xemacs "button3" "mouse-3"))))))
3567 (defun gnus-widget-press-button (elems el)
3568 (goto-char (widget-get elems :from))
3569 (gnus-article-press-button))
3571 (defvar gnus-displaying-mime nil)
3573 (defun gnus-display-mime (&optional ihandles)
3574 "Display the MIME parts."
3576 (save-selected-window
3577 (let ((window (get-buffer-window gnus-article-buffer))
3580 (select-window window)
3581 ;; We have to do this since selecting the window
3582 ;; may change the point. So we set the window point.
3583 (set-window-point window point)))
3584 (let* ((handles (or ihandles (mm-dissect-buffer) (mm-uu-dissect)))
3585 buffer-read-only handle name type b e display)
3586 (when (and (not ihandles)
3587 (not gnus-displaying-mime))
3588 ;; Top-level call; we clean up.
3589 (when gnus-article-mime-handles
3590 (mm-destroy-parts gnus-article-mime-handles)
3591 (setq gnus-article-mime-handle-alist nil));; A trick.
3592 (setq gnus-article-mime-handles handles)
3593 ;; We allow users to glean info from the handles.
3594 (when gnus-article-mime-part-function
3595 (gnus-mime-part-function handles)))
3597 (or (not (stringp (car handles)))
3600 (when (and (not ihandles)
3601 (not gnus-displaying-mime))
3602 ;; Clean up for mime parts.
3604 (delete-region (point) (point-max)))
3605 (let ((gnus-displaying-mime t))
3606 (gnus-mime-display-part handles)))
3609 (narrow-to-region (point) (point-max))
3610 (gnus-treat-article nil 1 1)
3613 ;; Highlight the headers.
3617 (narrow-to-region (point-min) (point))
3618 (gnus-treat-article 'head))))))))
3620 (defvar gnus-mime-display-multipart-as-mixed nil)
3622 (defun gnus-mime-display-part (handle)
3625 ((not (stringp (car handle)))
3626 (gnus-mime-display-single handle))
3627 ;; User-defined multipart
3628 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
3629 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
3631 ;; multipart/alternative
3632 ((and (equal (car handle) "multipart/alternative")
3633 (not gnus-mime-display-multipart-as-mixed))
3634 (let ((id (1+ (length gnus-article-mime-handle-alist))))
3635 (push (cons id handle) gnus-article-mime-handle-alist)
3636 (gnus-mime-display-alternative (cdr handle) nil nil id)))
3637 ;; multipart/related
3638 ((and (equal (car handle) "multipart/related")
3639 (not gnus-mime-display-multipart-as-mixed))
3640 ;;;!!!We should find the start part, but we just default
3641 ;;;!!!to the first part.
3642 (gnus-mime-display-part (cadr handle)))
3643 ;; Other multiparts are handled like multipart/mixed.
3645 (gnus-mime-display-mixed (cdr handle)))))
3647 (defun gnus-mime-part-function (handles)
3648 (if (stringp (car handles))
3649 (mapcar 'gnus-mime-part-function (cdr handles))
3650 (funcall gnus-article-mime-part-function handles)))
3652 (defun gnus-mime-display-mixed (handles)
3653 (mapcar 'gnus-mime-display-part handles))
3655 (defun gnus-mime-display-single (handle)
3656 (let ((type (mm-handle-media-type handle))
3657 (ignored gnus-ignored-mime-types)
3664 (when (string-match (pop ignored) type)
3665 (throw 'ignored nil)))
3666 (if (and (setq not-attachment
3667 (and (not (mm-inline-override-p handle))
3668 (or (not (mm-handle-disposition handle))
3669 (equal (car (mm-handle-disposition handle))
3671 (mm-attachment-override-p handle))))
3672 (mm-automatic-display-p handle)
3673 (or (mm-inlined-p handle)
3674 (mm-automatic-external-display-p type)))
3676 (when (equal (mm-handle-media-supertype handle) "text")
3678 (let ((id (1+ (length gnus-article-mime-handle-alist))))
3679 (push (cons id handle) gnus-article-mime-handle-alist)
3680 (when (or (not display)
3681 (not (gnus-unbuttonized-mime-type-p type)))
3682 ;(gnus-article-insert-newline)
3683 (gnus-insert-mime-button
3684 handle id (list (or display (and not-attachment text))))
3685 (gnus-article-insert-newline)
3686 ;(gnus-article-insert-newline)
3688 (let ((beg (point)))
3694 (let ((mail-parse-charset gnus-newsgroup-charset)
3695 (mail-parse-ignored-charsets
3696 (save-excursion (condition-case ()
3697 (set-buffer gnus-summary-buffer)
3699 gnus-newsgroup-ignored-charsets)))
3700 (mm-display-part handle t))
3701 (goto-char (point-max)))
3702 ((and text not-attachment)
3706 (gnus-article-insert-newline)
3707 (mm-insert-inline handle (mm-get-part handle))
3708 (goto-char (point-max))))
3712 (narrow-to-region beg (point))
3714 nil (length gnus-article-mime-handle-alist)
3715 (1- (length gnus-article-mime-handles))
3716 (mm-handle-media-type handle)))))))))
3718 (defun gnus-unbuttonized-mime-type-p (type)
3719 "Say whether TYPE is to be unbuttonized."
3720 (unless gnus-inhibit-mime-unbuttonizing
3722 (let ((types gnus-unbuttonized-mime-types))
3724 (when (string-match (pop types) type)
3725 (throw 'found t)))))))
3727 (defun gnus-article-insert-newline ()
3728 "Insert a newline, but mark it as undeletable."
3729 (gnus-put-text-property
3730 (point) (progn (insert "\n") (point)) 'gnus-undeletable t))
3732 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
3733 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
3736 handle buffer-read-only from props begend not-pref)
3737 (save-window-excursion
3740 (narrow-to-region (car ibegend)
3743 (goto-char (car ibegend))
3746 (delete-region (point-min) (point-max))
3747 (mm-remove-parts handles))
3748 (setq begend (list (point-marker)))
3750 (unless (setq not-pref (cadr (member preferred ihandles)))
3751 (setq not-pref (car ihandles)))
3753 (not (gnus-unbuttonized-mime-type-p
3754 "multipart/alternative")))
3755 (gnus-add-text-properties
3758 (insert (format "%d. " id))
3762 (unless ,(not ibegend)
3763 (setq gnus-article-mime-handle-alist
3764 ',gnus-article-mime-handle-alist))
3765 (gnus-mime-display-alternative
3766 ',ihandles ',not-pref ',begend ,id))
3767 local-map ,gnus-mime-button-map
3768 ,gnus-mouse-face-prop ,gnus-article-mouse-face
3769 face ,gnus-article-button-face
3770 keymap ,gnus-mime-button-map
3773 (widget-convert-button 'link from (point)
3774 :action 'gnus-widget-press-button
3775 :button-keymap gnus-widget-button-keymap)
3777 (while (setq handle (pop handles))
3778 (gnus-add-text-properties
3781 (insert (format "(%c) %-18s"
3782 (if (equal handle preferred) ?* ? )
3783 (mm-handle-media-type handle)))
3787 (unless ,(not ibegend)
3788 (setq gnus-article-mime-handle-alist
3789 ',gnus-article-mime-handle-alist))
3790 (gnus-mime-display-alternative
3791 ',ihandles ',handle ',begend ,id))
3792 local-map ,gnus-mime-button-map
3793 ,gnus-mouse-face-prop ,gnus-article-mouse-face
3794 face ,gnus-article-button-face
3795 keymap ,gnus-mime-button-map
3798 (widget-convert-button 'link from (point)
3799 :action 'gnus-widget-press-button
3800 :button-keymap gnus-widget-button-keymap)
3804 (if (stringp (car preferred))
3805 (gnus-display-mime preferred)
3806 (let ((mail-parse-charset gnus-newsgroup-charset)
3807 (mail-parse-ignored-charsets
3808 (save-excursion (set-buffer gnus-summary-buffer)
3809 gnus-newsgroup-ignored-charsets)))
3810 (mm-display-part preferred)
3814 (narrow-to-region (car begend) (point-max))
3816 nil (length gnus-article-mime-handle-alist)
3817 (1- (length gnus-article-mime-handles))
3818 (mm-handle-media-type handle))))))
3819 (goto-char (point-max))
3820 (setcdr begend (point-marker)))))
3822 (goto-char point))))
3824 (defun gnus-article-wash-status ()
3825 "Return a string which display status of article washing."
3827 (set-buffer gnus-article-buffer)
3828 (let ((cite (memq 'cite gnus-article-wash-types))
3829 (headers (memq 'headers gnus-article-wash-types))
3830 (boring (memq 'boring-headers gnus-article-wash-types))
3831 (pgp (memq 'pgp gnus-article-wash-types))
3832 (pem (memq 'pem gnus-article-wash-types))
3833 (signature (memq 'signature gnus-article-wash-types))
3834 (overstrike (memq 'overstrike gnus-article-wash-types))
3835 (emphasis (memq 'emphasis gnus-article-wash-types)))
3836 (format "%c%c%c%c%c%c%c"
3838 (if (or headers boring) ?h ? )
3839 (if (or pgp pem) ?p ? )
3840 (if signature ?s ? )
3841 (if overstrike ?o ? )
3842 (if gnus-show-mime ?m ? )
3843 (if emphasis ?e ? )))))
3845 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
3847 (defun gnus-article-maybe-hide-headers ()
3848 "Hide unwanted headers if `gnus-have-all-headers' is nil.
3849 Provided for backwards compatibility."
3850 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
3851 (not (save-excursion (set-buffer gnus-summary-buffer)
3852 gnus-have-all-headers)))
3853 (not gnus-inhibit-hiding))
3854 (gnus-article-hide-headers)))
3858 (defun gnus-output-to-file (file-name)
3859 "Append the current article to a file named FILE-NAME."
3860 (let ((artbuf (current-buffer)))
3862 (insert-buffer-substring artbuf)
3863 ;; Append newline at end of the buffer as separator, and then
3865 (goto-char (point-max))
3867 (write-region-as-binary (point-min) (point-max) file-name 'append)
3870 (defun gnus-narrow-to-page (&optional arg)
3871 "Narrow the article buffer to a page.
3872 If given a numerical ARG, move forward ARG pages."
3874 (setq arg (if arg (prefix-numeric-value arg) 0))
3876 (set-buffer gnus-article-buffer)
3877 (goto-char (point-min))
3879 ;; Remove any old next/prev buttons.
3880 (when (gnus-visual-p 'page-marker)
3881 (let ((buffer-read-only nil))
3882 (gnus-remove-text-with-property 'gnus-prev)
3883 (gnus-remove-text-with-property 'gnus-next)))
3886 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
3888 (re-search-forward page-delimiter nil 'move arg)))
3889 (goto-char (match-end 0)))
3892 (if (re-search-forward page-delimiter nil 'move)
3895 (when (and (gnus-visual-p 'page-marker)
3896 (not (= (point-min) 1)))
3898 (goto-char (point-min))
3899 (gnus-insert-prev-page-button)))
3900 (when (and (gnus-visual-p 'page-marker)
3901 (< (+ (point-max) 2) (buffer-size)))
3903 (goto-char (point-max))
3904 (gnus-insert-next-page-button)))))
3906 ;; Article mode commands
3908 (defun gnus-article-goto-next-page ()
3909 "Show the next page of the article."
3911 (when (gnus-article-next-page)
3912 (goto-char (point-min))
3913 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
3915 (defun gnus-article-goto-prev-page ()
3916 "Show the next page of the article."
3918 (if (bobp) (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
3919 (gnus-article-prev-page nil)))
3921 (defun gnus-article-next-page (&optional lines)
3922 "Show the next page of the current article.
3923 If end of article, return non-nil. Otherwise return nil.
3924 Argument LINES specifies lines to be scrolled up."
3926 (let ((start (window-start))
3927 end-of-buffer end-of-page)
3929 (move-to-window-line -1)
3930 (if (<= (point) start)
3933 (setq start (point)))
3936 (unless (or (cond ((eq (1+ (buffer-size)) (point))
3937 (and (pos-visible-in-window-p)
3938 (setq end-of-buffer t)))
3940 (setq end-of-page t)))
3942 (move-to-window-line lines)
3943 (unless (search-backward "\n\n" nil t)
3944 (setq start (point)))))
3945 (cond (end-of-buffer t)
3947 (gnus-narrow-to-page 1)
3951 (set-window-start (selected-window) start)
3952 (let (window-pixel-scroll-increment)
3956 (defun gnus-article-prev-page (&optional lines)
3957 "Show previous page of current article.
3958 Argument LINES specifies lines to be scrolled down."
3960 (let (beginning-of-buffer beginning-of-page)
3962 (move-to-window-line 0)
3963 (cond ((eq 1 (point))
3964 (setq beginning-of-buffer t))
3966 (setq beginning-of-page t))))
3967 (cond (beginning-of-buffer)
3969 (gnus-narrow-to-page -1))
3972 (let (window-pixel-scroll-increment)
3973 (scroll-down lines))
3974 (beginning-of-buffer
3975 (goto-char (point-min))))))))
3977 (defun gnus-article-refer-article ()
3978 "Read article specified by message-id around point."
3980 (let ((point (point)))
3981 (search-forward ">" nil t) ;Move point to end of "<....>".
3982 (if (re-search-backward "\\(<[^<> \t\n]+>\\)" nil t)
3983 (let ((message-id (match-string 1)))
3985 (set-buffer gnus-summary-buffer)
3986 (gnus-summary-refer-article message-id))
3988 (error "No references around point"))))
3990 (defun gnus-article-show-summary ()
3991 "Reconfigure windows to show summary buffer."
3993 (if (not (gnus-buffer-live-p gnus-summary-buffer))
3994 (error "There is no summary buffer for this article buffer")
3995 (gnus-article-set-globals)
3996 (gnus-configure-windows 'article)
3997 (gnus-summary-goto-subject gnus-current-article)
3998 (gnus-summary-position-point)))
4000 (defun gnus-article-describe-briefly ()
4001 "Describe article mode commands briefly."
4003 (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")))
4005 (defun gnus-article-summary-command ()
4006 "Execute the last keystroke in the summary buffer."
4008 (let ((obuf (current-buffer))
4009 (owin (current-window-configuration))
4011 (switch-to-buffer gnus-article-current-summary 'norecord)
4012 (setq func (lookup-key (current-local-map) (this-command-keys)))
4013 (call-interactively func)
4015 (set-window-configuration owin)
4016 (set-window-point (get-buffer-window (current-buffer)) (point))))
4018 (defun gnus-article-summary-command-nosave ()
4019 "Execute the last keystroke in the summary buffer."
4022 (pop-to-buffer gnus-article-current-summary 'norecord)
4023 (setq func (lookup-key (current-local-map) (this-command-keys)))
4024 (call-interactively func)))
4026 (defun gnus-article-check-buffer ()
4027 "Beep if not in an article buffer."
4028 (unless (eq (get-buffer gnus-article-buffer) (current-buffer))
4029 (error "Command invoked outside of a Gnus article buffer")))
4031 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
4032 "Read a summary buffer key sequence and execute it from the article buffer."
4034 (gnus-article-check-buffer)
4036 '("q" "Q" "c" "r" "R" "\C-c\C-f" "m" "a" "f" "F"
4037 "Zc" "ZC" "ZE" "ZJ" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
4038 "=" "^" "\M-^" "|"))
4044 '("n" "Gn" "p" "Gp"))
4047 (set-buffer gnus-article-current-summary)
4048 (let (gnus-pick-mode)
4049 (push (or key last-command-event) unread-command-events)
4050 (setq keys (static-if (featurep 'xemacs)
4051 (events-to-keys (read-key-sequence nil))
4052 (read-key-sequence nil)))))
4055 (if (or (member keys nosaves)
4056 (member keys nosave-but-article)
4057 (member keys nosave-in-article))
4059 (save-window-excursion
4060 (pop-to-buffer gnus-article-current-summary 'norecord)
4061 ;; We disable the pick minor mode commands.
4062 (let (gnus-pick-mode)
4063 (setq func (lookup-key (current-local-map) keys))))
4067 (unless (member keys nosave-in-article)
4068 (set-buffer gnus-article-current-summary))
4069 (call-interactively func)
4070 (setq new-sum-point (point)))
4071 (when (member keys nosave-but-article)
4072 (pop-to-buffer gnus-article-buffer 'norecord)))
4073 ;; These commands should restore window configuration.
4074 (let ((obuf (current-buffer))
4075 (owin (current-window-configuration))
4077 (summary gnus-article-current-summary)
4078 func in-buffer selected)
4079 (if not-restore-window
4080 (pop-to-buffer summary 'norecord)
4081 (switch-to-buffer summary 'norecord))
4082 (setq in-buffer (current-buffer))
4083 ;; We disable the pick minor mode commands.
4084 (if (setq func (let (gnus-pick-mode)
4085 (lookup-key (current-local-map) keys)))
4087 (call-interactively func)
4088 (setq new-sum-point (point)))
4090 (when (eq in-buffer (current-buffer))
4091 (setq selected (gnus-summary-select-article))
4093 (unless not-restore-window
4094 (set-window-configuration owin))
4095 (when (eq selected 'old)
4097 (set-window-start (get-buffer-window (current-buffer))
4099 (set-window-point (get-buffer-window (current-buffer))
4101 (let ((win (get-buffer-window gnus-article-current-summary)))
4103 (set-window-point win new-sum-point))))))))
4105 (defun gnus-article-hide (&optional arg force)
4106 "Hide all the gruft in the current article.
4107 This means that PGP stuff, signatures, cited text and (some)
4108 headers will be hidden.
4109 If given a prefix, show the hidden text instead."
4110 (interactive (append (gnus-article-hidden-arg) (list 'force)))
4111 (gnus-article-hide-headers arg)
4112 (gnus-article-hide-list-identifiers arg)
4113 (gnus-article-hide-pgp arg)
4114 (gnus-article-hide-citation-maybe arg force)
4115 (gnus-article-hide-signature arg))
4117 (defun gnus-article-maybe-highlight ()
4118 "Do some article highlighting if article highlighting is requested."
4119 (when (gnus-visual-p 'article-highlight 'highlight)
4120 (gnus-article-highlight-some)))
4122 (defun gnus-check-group-server ()
4123 ;; Make sure the connection to the server is alive.
4124 (unless (gnus-server-opened
4125 (gnus-find-method-for-group gnus-newsgroup-name))
4126 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
4127 (gnus-request-group gnus-newsgroup-name t)))
4129 (defun gnus-request-article-this-buffer (article group)
4130 "Get an article and insert it into this buffer."
4131 (let (do-update-line sparse-header)
4135 (gnus-kill-all-overlays)
4136 (setq group (or group gnus-newsgroup-name))
4138 ;; Using `gnus-request-article' directly will insert the article into
4139 ;; `nntp-server-buffer' - so we'll save some time by not having to
4140 ;; copy it from the server buffer into the article buffer.
4142 ;; We only request an article by message-id when we do not have the
4143 ;; headers for it, so we'll have to get those.
4144 (when (stringp article)
4145 (gnus-read-header article))
4147 ;; If the article number is negative, that means that this article
4148 ;; doesn't belong in this newsgroup (possibly), so we find its
4149 ;; message-id and request it by id instead of number.
4150 (when (and (numberp article)
4152 (get-buffer gnus-summary-buffer)
4153 (gnus-buffer-exists-p gnus-summary-buffer))
4155 (set-buffer gnus-summary-buffer)
4156 (let ((header (gnus-summary-article-header article)))
4159 ((memq article gnus-newsgroup-sparse)
4160 ;; This is a sparse gap article.
4161 (setq do-update-line article)
4162 (setq article (mail-header-id header))
4163 (setq sparse-header (gnus-read-header article))
4164 (setq gnus-newsgroup-sparse
4165 (delq article gnus-newsgroup-sparse)))
4167 ;; It's a real article.
4168 (setq article (mail-header-id header)))
4170 ;; It is an extracted pseudo-article.
4171 (setq article 'pseudo)
4172 (gnus-request-pseudo-article header))))
4174 (let ((method (gnus-find-method-for-group
4175 gnus-newsgroup-name)))
4176 (when (and (eq (car method) 'nneething)
4179 (file-name-as-directory
4180 (or (cadr (assq 'nneething-address method))
4182 (mail-header-subject header))))
4183 (when (file-directory-p dir)
4184 (setq article 'nneething)
4185 (gnus-group-enter-directory dir))))))))
4188 ;; Refuse to select canceled articles.
4189 ((and (numberp article)
4191 (get-buffer gnus-summary-buffer)
4192 (gnus-buffer-exists-p gnus-summary-buffer)
4193 (eq (cdr (save-excursion
4194 (set-buffer gnus-summary-buffer)
4195 (assq article gnus-newsgroup-reads)))
4196 gnus-canceled-mark))
4198 ;; Check the backlog.
4199 ((and gnus-keep-backlog
4200 (gnus-backlog-request-article group article (current-buffer)))
4202 ;; Check asynchronous pre-fetch.
4203 ((gnus-async-request-fetched-article group article (current-buffer))
4204 (gnus-async-prefetch-next group article gnus-summary-buffer)
4205 (when (and (numberp article) gnus-keep-backlog)
4206 (gnus-backlog-enter-article group article (current-buffer)))
4209 ((and gnus-use-cache
4211 (gnus-cache-request-article article group))
4213 ;; Get the article and put into the article buffer.
4214 ((or (stringp article)
4216 (let ((gnus-override-method gnus-override-method)
4217 (methods (and (stringp article)
4218 gnus-refer-article-method))
4220 (buffer-read-only nil))
4225 (when (and (null gnus-override-method)
4227 (setq gnus-override-method (pop methods)))
4229 (when (eq gnus-override-method 'current)
4230 (setq gnus-override-method gnus-current-select-method))
4232 (gnus-kill-all-overlays)
4233 (let ((gnus-newsgroup-name group))
4234 (gnus-check-group-server))
4235 (when (gnus-request-article article group (current-buffer))
4236 (when (numberp article)
4237 (gnus-async-prefetch-next group article
4238 gnus-summary-buffer)
4239 (when gnus-keep-backlog
4240 (gnus-backlog-enter-article
4241 group article (current-buffer))))
4242 (setq result 'article))
4245 (setq gnus-override-method (pop methods))
4246 (setq result 'done))))
4247 (and (eq result 'article) 'article)))
4251 ;; Associate this article with the current summary buffer.
4252 (setq gnus-article-current-summary gnus-summary-buffer)
4254 ;; Take the article from the original article buffer
4255 ;; and place it in the buffer it's supposed to be in.
4256 (when (and (get-buffer gnus-article-buffer)
4257 (equal (buffer-name (current-buffer))
4258 (buffer-name (get-buffer gnus-article-buffer))))
4260 (if (get-buffer gnus-original-article-buffer)
4261 (set-buffer gnus-original-article-buffer)
4262 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
4263 (buffer-disable-undo)
4264 (setq major-mode 'gnus-original-article-mode)
4265 (setq buffer-read-only t))
4266 (let (buffer-read-only)
4268 (insert-buffer-substring gnus-article-buffer))
4269 (setq gnus-original-article (cons group article)))
4272 (run-hooks 'gnus-article-decode-hook)
4273 ;; Mark article as decoded or not.
4274 (setq gnus-article-decoded-p gnus-article-decode-hook))
4276 ;; Update sparse articles.
4277 (when (and do-update-line
4278 (or (numberp article)
4280 (let ((buf (current-buffer)))
4281 (set-buffer gnus-summary-buffer)
4282 (gnus-summary-update-article do-update-line sparse-header)
4283 (gnus-summary-goto-subject do-update-line nil t)
4284 (set-window-point (get-buffer-window (current-buffer) t)
4286 (set-buffer buf))))))
4292 (defcustom gnus-article-edit-mode-hook nil
4293 "Hook run in article edit mode buffers."
4294 :group 'gnus-article-various
4297 (defcustom gnus-article-edit-article-setup-function
4298 'gnus-article-mime-edit-article-setup
4299 "Function called to setup an editing article buffer."
4300 :group 'gnus-article-various
4303 (defvar gnus-article-edit-done-function nil)
4305 (defvar gnus-article-edit-mode-map nil)
4307 ;; Should we be using derived.el for this?
4308 (unless gnus-article-edit-mode-map
4309 (setq gnus-article-edit-mode-map (make-sparse-keymap))
4310 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
4312 (gnus-define-keys gnus-article-edit-mode-map
4313 "\C-c\C-c" gnus-article-edit-done
4314 "\C-c\C-k" gnus-article-edit-exit)
4316 (gnus-define-keys (gnus-article-edit-wash-map
4317 "\C-c\C-w" gnus-article-edit-mode-map)
4318 "f" gnus-article-edit-full-stops))
4320 (defun gnus-article-edit-mode ()
4321 "Major mode for editing articles.
4322 This is an extended text-mode.
4324 \\{gnus-article-edit-mode-map}"
4326 (setq major-mode 'gnus-article-edit-mode)
4327 (setq mode-name "Article Edit")
4328 (use-local-map gnus-article-edit-mode-map)
4329 (make-local-variable 'gnus-article-edit-done-function)
4330 (make-local-variable 'gnus-prev-winconf)
4331 (setq buffer-read-only nil)
4332 (buffer-enable-undo)
4334 (gnus-run-hooks 'text-mode-hook 'gnus-article-edit-mode-hook))
4336 (defun gnus-article-edit (&optional force)
4337 "Edit the current article.
4338 This will have permanent effect only in mail groups.
4339 If FORCE is non-nil, allow editing of articles even in read-only
4342 (when (and (not force)
4343 (gnus-group-read-only-p))
4344 (error "The current newsgroup does not support article editing"))
4345 (gnus-article-date-original)
4346 (gnus-article-edit-article
4348 `(lambda (no-highlight)
4350 (gnus-summary-edit-article-done
4351 ,(or (mail-header-references gnus-current-headers) "")
4352 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
4354 (defun gnus-article-edit-article (start-func exit-func)
4355 "Start editing the contents of the current article buffer."
4356 (let ((winconf (current-window-configuration)))
4357 (set-buffer gnus-article-buffer)
4358 (gnus-article-edit-mode)
4359 (funcall start-func)
4360 (gnus-configure-windows 'edit-article)
4361 (setq gnus-article-edit-done-function exit-func)
4362 (setq gnus-prev-winconf winconf)
4363 (when gnus-article-edit-article-setup-function
4364 (funcall gnus-article-edit-article-setup-function))
4365 (gnus-message 6 "C-c C-c to end edits")))
4367 (defun gnus-article-edit-done (&optional arg)
4368 "Update the article edits and exit."
4373 (when (article-goto-body)
4374 (let ((lines (count-lines (point) (point-max)))
4375 (length (- (point-max) (point)))
4376 (case-fold-search t)
4377 (body (copy-marker (point))))
4378 (goto-char (point-min))
4379 (when (re-search-forward "^content-length:[ \t]\\([0-9]+\\)" body t)
4380 (delete-region (match-beginning 1) (match-end 1))
4381 (insert (number-to-string length)))
4382 (goto-char (point-min))
4383 (when (re-search-forward
4384 "^x-content-length:[ \t]\\([0-9]+\\)" body t)
4385 (delete-region (match-beginning 1) (match-end 1))
4386 (insert (number-to-string length)))
4387 (goto-char (point-min))
4388 (when (re-search-forward "^lines:[ \t]\\([0-9]+\\)" body t)
4389 (delete-region (match-beginning 1) (match-end 1))
4390 (insert (number-to-string lines)))))))
4391 (let ((func gnus-article-edit-done-function)
4392 (buf (current-buffer))
4393 (start (window-start)))
4394 (remove-hook 'gnus-article-mode-hook
4395 'gnus-article-mime-edit-article-unwind)
4396 (gnus-article-edit-exit)
4399 (let ((buffer-read-only nil))
4401 ;; The cache and backlog have to be flushed somewhat.
4402 (when gnus-keep-backlog
4403 (gnus-backlog-remove-article
4404 (car gnus-article-current) (cdr gnus-article-current)))
4405 ;; Flush original article as well.
4407 (when (get-buffer gnus-original-article-buffer)
4408 (set-buffer gnus-original-article-buffer)
4409 (setq gnus-original-article nil)))
4410 (when gnus-use-cache
4411 (gnus-cache-update-article
4412 (car gnus-article-current) (cdr gnus-article-current))))
4414 (set-window-start (get-buffer-window buf) start)
4415 (set-window-point (get-buffer-window buf) (point))))
4417 (defun gnus-article-edit-exit ()
4418 "Exit the article editing without updating."
4420 ;; We remove all text props from the article buffer.
4421 (let ((buf (buffer-substring-no-properties (point-min) (point-max)))
4422 (curbuf (current-buffer))
4424 (window-start (window-start)))
4427 (let ((winconf gnus-prev-winconf))
4429 (set-window-configuration winconf)
4430 ;; Tippy-toe some to make sure that point remains where it was.
4431 (save-current-buffer
4433 (set-window-start (get-buffer-window (current-buffer)) window-start)
4436 (defun gnus-article-edit-full-stops ()
4437 "Interactively repair spacing at end of sentences."
4440 (goto-char (point-min))
4441 (search-forward-regexp "^$" nil t)
4442 (let ((case-fold-search nil))
4443 (query-replace-regexp "\\([.!?][])}]* \\)\\([[({A-Z]\\)" "\\1 \\2"))))
4446 ;;; Article editing with MIME-Edit
4449 (defcustom gnus-article-mime-edit-article-setup-hook nil
4450 "Hook run after setting up a MIME editing article buffer."
4451 :group 'gnus-article-various
4454 (defun gnus-article-mime-edit-article-unwind ()
4455 "Unwind `gnus-article-buffer' if article editing was given up."
4456 (remove-hook 'gnus-article-mode-hook 'gnus-article-mime-edit-article-unwind)
4457 (when mime-edit-mode-flag
4458 (mime-edit-exit 'nomime 'no-error)
4460 (when (featurep 'font-lock)
4461 (setq font-lock-defaults nil)
4462 (font-lock-mode 0)))
4464 (defun gnus-article-mime-edit-article-setup ()
4465 "Convert current buffer to MIME-Edit buffer and turn on MIME-Edit mode
4466 after replacing with the original article."
4467 (setq gnus-show-mime t)
4468 (setq gnus-article-edit-done-function
4469 `(lambda (&rest args)
4470 (when mime-edit-mode-flag
4473 (goto-char (point-min))
4474 (let (case-fold-search)
4475 (when (re-search-forward
4476 (format "^%s$" (regexp-quote mail-header-separator))
4478 (replace-match "")))
4479 (when (featurep 'font-lock)
4480 (setq font-lock-defaults nil)
4482 (apply ,gnus-article-edit-done-function args)
4483 (set-buffer gnus-original-article-buffer)
4485 (insert-buffer gnus-article-buffer)
4486 (setq gnus-current-headers (gnus-article-make-full-mail-header))
4487 (gnus-article-prepare-display)))
4488 (substitute-key-definition
4489 'gnus-article-edit-exit 'gnus-article-mime-edit-exit
4490 gnus-article-edit-mode-map)
4492 (insert-buffer gnus-original-article-buffer)
4494 (when (featurep 'font-lock)
4495 (set (make-local-variable 'font-lock-defaults)
4496 '(message-font-lock-keywords t))
4497 (font-lock-set-defaults)
4498 (turn-on-font-lock))
4499 (add-hook 'gnus-article-mode-hook 'gnus-article-mime-edit-article-unwind)
4500 (gnus-run-hooks 'gnus-article-mime-edit-article-setup-hook))
4502 (defun gnus-article-mime-edit-exit ()
4503 "Exit the article MIME editing without updating."
4505 (let ((winconf gnus-prev-winconf)
4507 (when mime-edit-mode-flag
4510 (goto-char (point-min))
4511 (let (case-fold-search)
4512 (when (re-search-forward
4513 (format "^%s$" (regexp-quote mail-header-separator)) nil t)
4514 (replace-match "")))
4515 (when (featurep 'font-lock)
4516 (setq font-lock-defaults nil)
4518 ;; We remove all text props from the article buffer.
4519 (setq buf (format "%s" (buffer-string)))
4520 (set-buffer (get-buffer-create gnus-original-article-buffer))
4523 (setq gnus-current-headers (gnus-article-make-full-mail-header))
4524 (gnus-article-prepare-display)
4525 (set-window-configuration winconf)))
4528 ;;; Article highlights
4531 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
4533 ;;; Internal Variables:
4535 (defcustom gnus-button-url-regexp "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\)\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?\\([-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,]\\|\\w\\)+\\([-a-zA-Z0-9_=#$@~`%&*+|\\/]\\|\\w\\)\\)"
4536 "Regular expression that matches URLs."
4537 :group 'gnus-article-buttons
4540 (defcustom gnus-button-alist
4541 `(("<\\(url:[>\n\t ]*?\\)?news:[>\n\t ]*\\([^>\n\t ]*@[^>\n\t ]*\\)>"
4542 0 t gnus-button-message-id 2)
4543 ("\\bnews:\\([^>\n\t ]*@[^>)!;:,\n\t ]*\\)" 0 t gnus-button-message-id 1)
4544 ("\\(\\b<\\(url:[>\n\t ]*\\)?news:[>\n\t ]*\\(//\\)?\\([^>\n\t ]*\\)>\\)"
4546 gnus-button-fetch-group 4)
4547 ("\\bnews:\\(//\\)?\\([^'\">\n\t ]+\\)" 0 t gnus-button-fetch-group 2)
4548 ("\\bin\\( +article\\| +message\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)" 2
4549 t gnus-button-message-id 3)
4550 ("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>" 0 t gnus-url-mailto 2)
4551 ("mailto:\\([-a-zA-Z.@_+0-9%]+\\)" 0 t gnus-url-mailto 1)
4552 ("\\bmailto:\\([^ \n\t]+\\)" 0 t gnus-url-mailto 1)
4553 ;; This is how URLs _should_ be embedded in text...
4554 ("<URL: *\\([^<>]*\\)>" 0 t gnus-button-embedded-url 1)
4556 (,gnus-button-url-regexp 0 t browse-url 0))
4557 "*Alist of regexps matching buttons in article bodies.
4559 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
4560 REGEXP: is the string matching text around the button,
4561 BUTTON: is the number of the regexp grouping actually matching the button,
4562 FORM: is a lisp expression which must eval to true for the button to
4564 CALLBACK: is the function to call when the user push this button, and each
4565 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
4567 CALLBACK can also be a variable, in that case the value of that
4568 variable it the real callback function."
4569 :group 'gnus-article-buttons
4570 :type '(repeat (list regexp
4571 (integer :tag "Button")
4573 (function :tag "Callback")
4576 (integer :tag "Regexp group")))))
4578 (defcustom gnus-header-button-alist
4579 `(("^\\(References\\|Message-I[Dd]\\):" "<[^>]+>"
4580 0 t gnus-button-message-id 0)
4581 ("^\\(From\\|Reply-To\\):" ": *\\(.+\\)$" 1 t gnus-button-reply 1)
4582 ("^\\(Cc\\|To\\):" "[^ \t\n<>,()\"]+@[^ \t\n<>,()\"]+"
4583 0 t gnus-button-mailto 0)
4584 ("^X-[Uu][Rr][Ll]:" ,gnus-button-url-regexp 0 t browse-url 0)
4585 ("^Subject:" ,gnus-button-url-regexp 0 t browse-url 0)
4586 ("^[^:]+:" ,gnus-button-url-regexp 0 t browse-url 0)
4587 ("^[^:]+:" "\\(<\\(url: \\)?news:\\([^>\n ]*\\)>\\)" 1 t
4588 gnus-button-message-id 3))
4589 "*Alist of headers and regexps to match buttons in article heads.
4591 This alist is very similar to `gnus-button-alist', except that each
4592 alist has an additional HEADER element first in each entry:
4594 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
4596 HEADER is a regexp to match a header. For a fuller explanation, see
4597 `gnus-button-alist'."
4598 :group 'gnus-article-buttons
4599 :group 'gnus-article-headers
4600 :type '(repeat (list (regexp :tag "Header")
4602 (integer :tag "Button")
4604 (function :tag "Callback")
4607 (integer :tag "Regexp group")))))
4609 (defvar gnus-button-regexp nil)
4610 (defvar gnus-button-marker-list nil)
4611 ;; Regexp matching any of the regexps from `gnus-button-alist'.
4613 (defvar gnus-button-last nil)
4614 ;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
4618 (defun gnus-article-push-button (event)
4619 "Check text under the mouse pointer for a callback function.
4620 If the text under the mouse pointer has a `gnus-callback' property,
4621 call it with the value of the `gnus-data' text property."
4623 (set-buffer (window-buffer (posn-window (event-start event))))
4624 (let* ((pos (posn-point (event-start event)))
4625 (data (get-text-property pos 'gnus-data))
4626 (fun (get-text-property pos 'gnus-callback)))
4629 (funcall fun data))))
4631 (defun gnus-article-press-button ()
4632 "Check text at point for a callback function.
4633 If the text at point has a `gnus-callback' property,
4634 call it with the value of the `gnus-data' text property."
4636 (let* ((data (get-text-property (point) 'gnus-data))
4637 (fun (get-text-property (point) 'gnus-callback)))
4639 (funcall fun data))))
4641 (defun gnus-article-prev-button (n)
4642 "Move point to N buttons backward.
4643 If N is negative, move forward instead."
4645 (gnus-article-next-button (- n)))
4647 (defun gnus-article-next-button (n)
4648 "Move point to N buttons forward.
4649 If N is negative, move backward instead."
4651 (let ((function (if (< n 0) 'previous-single-property-change
4652 'next-single-property-change))
4653 (inhibit-point-motion-hooks t)
4655 (limit (if (< n 0) (point-min) (point-max))))
4657 (while (and (not (= limit (point)))
4659 ;; Skip past the current button.
4660 (when (get-text-property (point) 'gnus-callback)
4661 (goto-char (funcall function (point) 'gnus-callback nil limit)))
4662 ;; Go to the next (or previous) button.
4663 (gnus-goto-char (funcall function (point) 'gnus-callback nil limit))
4664 ;; Put point at the start of the button.
4665 (when (and backward (not (get-text-property (point) 'gnus-callback)))
4666 (goto-char (funcall function (point) 'gnus-callback nil limit)))
4667 ;; Skip past intangible buttons.
4668 (when (get-text-property (point) 'intangible)
4672 (gnus-message 5 "No more buttons"))
4675 (defun gnus-article-highlight (&optional force)
4676 "Highlight current article.
4677 This function calls `gnus-article-highlight-headers',
4678 `gnus-article-highlight-citation',
4679 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
4680 do the highlighting. See the documentation for those functions."
4681 (interactive (list 'force))
4682 (gnus-article-highlight-headers)
4683 (gnus-article-highlight-citation force)
4684 (gnus-article-highlight-signature)
4685 (gnus-article-add-buttons force)
4686 (gnus-article-add-buttons-to-head))
4688 (defun gnus-article-highlight-some (&optional force)
4689 "Highlight current article.
4690 This function calls `gnus-article-highlight-headers',
4691 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
4692 do the highlighting. See the documentation for those functions."
4693 (interactive (list 'force))
4694 (gnus-article-highlight-headers)
4695 (gnus-article-highlight-signature)
4696 (gnus-article-add-buttons))
4698 (defun gnus-article-highlight-headers ()
4699 "Highlight article headers as specified by `gnus-header-face-alist'."
4702 (set-buffer gnus-article-buffer)
4704 (let ((alist gnus-header-face-alist)
4705 (buffer-read-only nil)
4706 (case-fold-search t)
4707 (inhibit-point-motion-hooks t)
4708 entry regexp header-face field-face from hpoints fpoints)
4709 (article-narrow-to-head)
4710 (while (setq entry (pop alist))
4711 (goto-char (point-min))
4712 (setq regexp (concat "^\\("
4713 (if (string-equal "" (nth 0 entry))
4717 header-face (nth 1 entry)
4718 field-face (nth 2 entry))
4719 (while (and (re-search-forward regexp nil t)
4723 (unless (search-forward ":" nil t)
4725 (when (and header-face
4726 (not (memq (point) hpoints)))
4727 (push (point) hpoints)
4728 (gnus-put-text-property from (point) 'face header-face))
4729 (when (and field-face
4730 (not (memq (setq from (point)) fpoints)))
4732 (if (re-search-forward "^[^ \t]" nil t)
4734 (goto-char (point-max)))
4735 (gnus-put-text-property from (point) 'face field-face))))))))
4737 (defun gnus-article-highlight-signature ()
4738 "Highlight the signature in an article.
4739 It does this by highlighting everything after
4740 `gnus-signature-separator' using `gnus-signature-face'."
4742 (when gnus-signature-face
4744 (set-buffer gnus-article-buffer)
4745 (let ((buffer-read-only nil)
4746 (inhibit-point-motion-hooks t))
4748 (when (gnus-article-narrow-to-signature)
4749 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max))
4750 'face gnus-signature-face)))))))
4752 (defun gnus-article-buttonize-signature ()
4753 "Add button to the signature."
4756 (set-buffer gnus-article-buffer)
4757 (let ((buffer-read-only nil)
4758 (inhibit-point-motion-hooks t))
4759 (when (gnus-article-search-signature)
4760 (gnus-article-add-button (match-beginning 0) (match-end 0)
4761 'gnus-signature-toggle
4762 (set-marker (make-marker)
4763 (1+ (match-end 0))))))))
4765 (defun gnus-button-in-region-p (b e prop)
4766 "Say whether PROP exists in the region."
4767 (text-property-not-all b e prop nil))
4769 (defun gnus-article-add-buttons (&optional force)
4770 "Find external references in the article and make buttons of them.
4771 \"External references\" are things like Message-IDs and URLs, as
4772 specified by `gnus-button-alist'."
4773 (interactive (list 'force))
4775 (set-buffer gnus-article-buffer)
4776 (let ((buffer-read-only nil)
4777 (inhibit-point-motion-hooks t)
4778 (case-fold-search t)
4779 (alist gnus-button-alist)
4781 ;; Remove all old markers.
4782 (let (marker entry new-list)
4783 (while (setq marker (pop gnus-button-marker-list))
4784 (if (or (< marker (point-min)) (>= marker (point-max)))
4785 (push marker new-list)
4787 (when (setq entry (gnus-button-entry))
4788 (put-text-property (match-beginning (nth 1 entry))
4789 (match-end (nth 1 entry))
4790 'gnus-callback nil))
4791 (set-marker marker nil)))
4792 (setq gnus-button-marker-list new-list))
4793 ;; We skip the headers.
4796 (while (setq entry (pop alist))
4797 (setq regexp (car entry))
4799 (while (re-search-forward regexp nil t)
4800 (let* ((start (and entry (match-beginning (nth 1 entry))))
4801 (end (and entry (match-end (nth 1 entry))))
4802 (from (match-beginning 0)))
4803 (when (and (or (eq t (nth 2 entry))
4804 (eval (nth 2 entry)))
4805 (not (gnus-button-in-region-p
4806 start end 'gnus-callback)))
4807 ;; That optional form returned non-nil, so we add the
4809 (gnus-article-add-button
4810 start end 'gnus-button-push
4811 (car (push (set-marker (make-marker) from)
4812 gnus-button-marker-list))))))))))
4814 ;; Add buttons to the head of an article.
4815 (defun gnus-article-add-buttons-to-head ()
4816 "Add buttons to the head of the article."
4819 (set-buffer gnus-article-buffer)
4821 (let ((buffer-read-only nil)
4822 (inhibit-point-motion-hooks t)
4823 (case-fold-search t)
4824 (alist gnus-header-button-alist)
4826 (article-narrow-to-head)
4828 ;; Each alist entry.
4829 (setq entry (car alist)
4831 (goto-char (point-min))
4832 (while (re-search-forward (car entry) nil t)
4833 ;; Each header matching the entry.
4834 (setq beg (match-beginning 0))
4835 (setq end (or (and (re-search-forward "^[^ \t]" nil t)
4836 (match-beginning 0))
4839 (while (re-search-forward (nth 1 entry) end t)
4840 ;; Each match within a header.
4841 (let* ((entry (cdr entry))
4842 (start (match-beginning (nth 1 entry)))
4843 (end (match-end (nth 1 entry)))
4844 (form (nth 2 entry)))
4845 (goto-char (match-end 0))
4847 (gnus-article-add-button
4848 start end (nth 3 entry)
4849 (buffer-substring (match-beginning (nth 4 entry))
4850 (match-end (nth 4 entry)))))))
4851 (goto-char end)))))))
4853 ;;; External functions:
4855 (defun gnus-article-add-button (from to fun &optional data)
4856 "Create a button between FROM and TO with callback FUN and data DATA."
4857 (when gnus-article-button-face
4858 (gnus-overlay-put (gnus-make-overlay from to)
4859 'face gnus-article-button-face))
4860 (gnus-add-text-properties
4862 (nconc (and gnus-article-mouse-face
4863 (list gnus-mouse-face-prop gnus-article-mouse-face))
4864 (list 'gnus-callback fun)
4865 (and data (list 'gnus-data data)))))
4867 ;;; Internal functions:
4869 (defun gnus-article-set-globals ()
4871 (set-buffer gnus-summary-buffer)
4872 (gnus-set-global-variables)))
4874 (defun gnus-signature-toggle (end)
4876 (set-buffer gnus-article-buffer)
4877 (let ((buffer-read-only nil)
4878 (inhibit-point-motion-hooks t)
4879 (limit (next-single-property-change end 'mime-view-entity
4881 (if (get-text-property end 'invisible)
4882 (gnus-article-unhide-text end limit)
4883 (gnus-article-hide-text end limit gnus-hidden-properties)))))
4885 (defun gnus-button-entry ()
4886 ;; Return the first entry in `gnus-button-alist' matching this place.
4887 (let ((alist gnus-button-alist)
4890 (setq entry (pop alist))
4891 (if (looking-at (car entry))
4896 (defun gnus-button-push (marker)
4897 ;; Push button starting at MARKER.
4900 (let* ((entry (gnus-button-entry))
4901 (inhibit-point-motion-hooks t)
4903 (args (mapcar (lambda (group)
4904 (let ((string (match-string group)))
4905 (gnus-set-text-properties
4906 0 (length string) nil string)
4913 (fboundp (symbol-value fun)))
4914 (apply (symbol-value fun) args))
4916 (gnus-message 1 "You must define `%S' to use this button"
4917 (cons fun args)))))))
4919 (defun gnus-button-message-id (message-id)
4922 (set-buffer gnus-summary-buffer)
4923 (gnus-summary-refer-article message-id)))
4925 (defun gnus-button-fetch-group (address)
4926 "Fetch GROUP specified by ADDRESS."
4927 (if (not (string-match "[:/]" address))
4928 ;; This is just a simple group url.
4929 (gnus-group-read-ephemeral-group address gnus-select-method)
4930 (if (not (string-match "^\\([^:/]+\\)\\(:\\([^/]+\\)/\\)?\\(.*\\)$"
4932 (error "Can't parse %s" address)
4933 (gnus-group-read-ephemeral-group
4934 (match-string 4 address)
4935 `(nntp ,(match-string 1 address)
4936 (nntp-address ,(match-string 1 address))
4937 (nntp-port-number ,(if (match-end 3)
4938 (match-string 3 address)
4941 (defun gnus-url-parse-query-string (query &optional downcase)
4942 (let (retval pairs cur key val)
4943 (setq pairs (split-string query "&"))
4945 (setq cur (car pairs)
4947 (if (not (string-match "=" cur))
4949 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
4950 val (gnus-url-unhex-string (substring cur (match-end 0) nil)))
4952 (setq key (downcase key)))
4953 (setq cur (assoc key retval))
4955 (setcdr cur (cons val (cdr cur)))
4956 (setq retval (cons (list key val) retval)))))
4959 (defun gnus-url-unhex (x)
4966 (defun gnus-url-unhex-string (str &optional allow-newlines)
4967 "Remove %XXX embedded spaces, etc in a url.
4968 If optional second argument ALLOW-NEWLINES is non-nil, then allow the
4969 decoding of carriage returns and line feeds in the string, which is normally
4970 forbidden in URL encoding."
4971 (setq str (or str ""))
4973 (case-fold-search t))
4974 (while (string-match "%[0-9a-f][0-9a-f]" str)
4975 (let* ((start (match-beginning 0))
4976 (ch1 (gnus-url-unhex (elt str (+ start 1))))
4978 (gnus-url-unhex (elt str (+ start 2))))))
4980 tmp (substring str 0 start)
4983 (char-to-string code))
4984 ((or (= code ?\n) (= code ?\r))
4986 (t (char-to-string code))))
4987 str (substring str (match-end 0)))))
4988 (setq tmp (concat tmp str))
4991 (defun gnus-url-mailto (url)
4992 ;; Send mail to someone
4993 (when (string-match "mailto:/*\\(.*\\)" url)
4994 (setq url (substring url (match-beginning 1) nil)))
4995 (let (to args subject func)
4996 (if (string-match (regexp-quote "?") url)
4997 (setq to (gnus-url-unhex-string (substring url 0 (match-beginning 0)))
4998 args (gnus-url-parse-query-string
4999 (substring url (match-end 0) nil) t))
5000 (setq to (gnus-url-unhex-string url)))
5001 (setq args (cons (list "to" to) args)
5002 subject (cdr-safe (assoc "subject" args)))
5003 (gnus-setup-message 'reply
5006 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
5009 (message-position-on-field (caar args)))
5010 (insert (mapconcat 'identity (cdar args) ", "))
5011 (setq args (cdr args)))
5014 (message-goto-subject)))))
5016 (defun gnus-button-mailto (address)
5018 (set-buffer (gnus-copy-article-buffer))
5019 (gnus-setup-message 'reply
5020 (message-reply address)))
5022 (defun gnus-button-reply (address)
5023 ;; Reply to ADDRESS.
5024 (gnus-setup-message 'reply
5025 (message-reply address)))
5027 (defun gnus-button-embedded-url (address)
5029 (browse-url (gnus-strip-whitespace address)))
5031 (defun gnus-article-smiley-display ()
5032 "Display \"smileys\" as small graphical icons."
5033 (smiley-toggle-buffer 1 (current-buffer) (point-min) (point-max)))
5035 ;;; Next/prev buttons in the article buffer.
5037 (defvar gnus-next-page-line-format "%{%(Next page...%)%}\n")
5038 (defvar gnus-prev-page-line-format "%{%(Previous page...%)%}\n")
5040 (defvar gnus-prev-page-map nil)
5041 (unless gnus-prev-page-map
5042 (setq gnus-prev-page-map (make-sparse-keymap))
5043 (define-key gnus-prev-page-map gnus-mouse-2 'gnus-button-prev-page)
5044 (define-key gnus-prev-page-map "\r" 'gnus-button-prev-page))
5046 (static-if (featurep 'xemacs)
5047 (defun gnus-insert-prev-page-button ()
5048 (let ((buffer-read-only nil))
5050 gnus-prev-page-line-format nil
5051 `(gnus-prev t local-map ,gnus-prev-page-map
5052 gnus-callback gnus-article-button-prev-page
5053 article-type annotation))))
5054 (defun gnus-insert-prev-page-button ()
5055 (let ((buffer-read-only nil)
5056 (situation (get-text-property (point-min) 'mime-view-situation)))
5057 (set-keymap-parent gnus-prev-page-map (current-local-map))
5059 gnus-prev-page-line-format nil
5060 `(gnus-prev t local-map ,gnus-prev-page-map
5061 gnus-callback gnus-article-button-prev-page
5062 article-type annotation
5063 mime-view-situation ,situation))))
5066 (defvar gnus-next-page-map nil)
5067 (unless gnus-next-page-map
5068 (setq gnus-next-page-map (make-sparse-keymap))
5069 (define-key gnus-next-page-map gnus-mouse-2 'gnus-button-next-page)
5070 (define-key gnus-next-page-map "\r" 'gnus-button-next-page))
5072 (defun gnus-button-next-page ()
5073 "Go to the next page."
5075 (let ((win (selected-window)))
5076 (select-window (get-buffer-window gnus-article-buffer t))
5077 (gnus-article-next-page)
5078 (select-window win)))
5080 (defun gnus-button-prev-page ()
5081 "Go to the prev page."
5083 (let ((win (selected-window)))
5084 (select-window (get-buffer-window gnus-article-buffer t))
5085 (gnus-article-prev-page)
5086 (select-window win)))
5088 (static-if (featurep 'xemacs)
5089 (defun gnus-insert-next-page-button ()
5090 (let ((buffer-read-only nil))
5091 (gnus-eval-format gnus-next-page-line-format nil
5093 t local-map ,gnus-next-page-map
5094 gnus-callback gnus-article-button-next-page
5095 article-type annotation))))
5096 (defun gnus-insert-next-page-button ()
5097 (let ((buffer-read-only nil)
5098 (situation (get-text-property (point-min) 'mime-view-situation)))
5099 (set-keymap-parent gnus-next-page-map (current-local-map))
5100 (gnus-eval-format gnus-next-page-line-format nil
5102 t local-map ,gnus-next-page-map
5103 gnus-callback gnus-article-button-next-page
5104 article-type annotation
5105 mime-view-situation ,situation))))
5108 (defun gnus-article-button-next-page (arg)
5109 "Go to the next page."
5111 (let ((win (selected-window)))
5112 (select-window (get-buffer-window gnus-article-buffer t))
5113 (gnus-article-next-page)
5114 (select-window win)))
5116 (defun gnus-article-button-prev-page (arg)
5117 "Go to the prev page."
5119 (let ((win (selected-window)))
5120 (select-window (get-buffer-window gnus-article-buffer t))
5121 (gnus-article-prev-page)
5122 (select-window win)))
5124 (defvar gnus-decode-header-methods
5125 '(mail-decode-encoded-word-region)
5126 "List of methods used to decode headers.
5128 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
5129 is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
5130 (REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
5131 whose names match REGEXP.
5134 ((\"chinese\" . gnus-decode-encoded-word-region-by-guess)
5135 mail-decode-encoded-word-region
5136 (\"chinese\" . rfc1843-decode-region))
5139 (defvar gnus-decode-header-methods-cache nil)
5141 (defun gnus-multi-decode-header (start end)
5142 "Apply the functions from `gnus-encoded-word-methods' that match."
5143 (unless (and gnus-decode-header-methods-cache
5144 (eq gnus-newsgroup-name
5145 (car gnus-decode-header-methods-cache)))
5146 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
5149 (nconc gnus-decode-header-methods-cache (list x))
5150 (if (and gnus-newsgroup-name
5151 (string-match (car x) gnus-newsgroup-name))
5152 (nconc gnus-decode-header-methods-cache
5154 gnus-decode-header-methods))
5155 (let ((xlist gnus-decode-header-methods-cache))
5158 (narrow-to-region start end)
5160 (funcall (pop xlist) (point-min) (point-max))))))
5163 ;;; Treatment top-level handling.
5166 (defun gnus-treat-article (condition &optional part-number total-parts type)
5167 (let ((length (- (point-max) (point-min)))
5168 (alist gnus-treatment-function-alist)
5169 (article-goto-body-goes-to-point-min-p t)
5173 (let ((list gnus-article-treat-types))
5175 (when (string-match (pop list) type)
5176 (throw 'found t)))))))
5177 (highlightp (gnus-visual-p 'article-highlight 'highlight))
5178 (entity (static-unless (featurep 'xemacs)
5179 (when (eq 'head condition)
5180 (get-text-property (point-min) 'mime-view-entity))))
5181 val elem buttonized)
5182 (gnus-run-hooks 'gnus-part-display-hook)
5183 (unless gnus-inhibit-treatment
5184 (while (setq elem (pop alist))
5187 (if (gnus-buffer-live-p gnus-summary-buffer)
5188 (set-buffer gnus-summary-buffer))
5189 (symbol-value (car elem))))
5190 (when (and (or (consp val)
5192 (gnus-treat-predicate val)
5193 (or (not (get (car elem) 'highlight))
5195 (when (and (not buttonized)
5197 '(gnus-treat-hide-signature
5198 gnus-treat-highlight-signature)))
5199 (gnus-article-buttonize-signature)
5200 (setq buttonized t))
5202 (funcall (cadr elem)))))
5203 ;; FSF Emacsen does not inherit the existing text properties
5204 ;; in the new text, so we should do it for `mime-view-entity'.
5205 (static-unless (featurep 'xemacs)
5207 (put-text-property (point-min) (point-max)
5208 'mime-view-entity entity))))))
5210 ;; Dynamic variables.
5211 (defvar part-number)
5212 (defvar total-parts)
5216 (defun gnus-treat-predicate (val)
5221 (stringp (car val)))
5222 (apply 'gnus-or (mapcar `(lambda (s)
5223 (string-match s ,(or gnus-newsgroup-name "")))
5226 (let ((pred (pop val)))
5229 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
5231 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
5233 (not (gnus-treat-predicate (car val))))
5235 (equal (car val) type))
5237 (error "%S is not a valid predicate" pred)))))
5247 (eq part-number total-parts))
5251 (error "%S is not a valid value" val))))
5257 (defun gnus-article-header-presentation-method (entity situation)
5258 (mime-insert-header entity)
5261 (set-alist 'mime-header-presentation-method-alist
5262 'gnus-original-article-mode
5263 #'gnus-article-header-presentation-method)
5265 (defun gnus-mime-preview-quitting-method ()
5266 (mime-preview-kill-buffer)
5267 (delete-other-windows)
5268 (gnus-article-show-summary)
5269 (gnus-summary-select-article gnus-show-all-headers t))
5271 (set-alist 'mime-preview-quitting-method-alist
5272 'gnus-original-article-mode #'gnus-mime-preview-quitting-method)
5274 (set-alist 'mime-preview-following-method-alist
5275 'gnus-original-article-mode #'gnus-following-method)
5277 (set-alist 'mime-preview-over-to-previous-method-alist
5278 'gnus-original-article-mode
5280 (if (> (point-min) 1)
5281 (gnus-article-prev-page)
5282 (gnus-article-read-summary-keys
5283 nil (gnus-character-to-event ?P)))))
5285 (set-alist 'mime-preview-over-to-next-method-alist
5286 'gnus-original-article-mode'
5288 (if (< (point-max) (buffer-size))
5289 (gnus-article-next-page)
5290 (gnus-article-read-summary-keys
5291 nil (gnus-character-to-event ?N)))))
5301 (run-hooks 'gnus-art-load-hook)
5303 ;;; gnus-art.el ends here