1 ;;; gnus-art.el --- article mode commands for Semi-gnus
2 ;; Copyright (C) 1996,97,98,99 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))
41 ;; Avoid byte-compile warnings.
43 (defvar gnus-article-decoded-p)
44 (defvar gnus-article-mime-handles)
53 (defgroup gnus-article nil
55 :link '(custom-manual "(gnus)The Article Buffer")
58 (defgroup gnus-article-treat nil
59 "Treating article parts."
60 :link '(custom-manual "(gnus)Article Hiding")
63 (defgroup gnus-article-hiding nil
64 "Hiding article parts."
65 :link '(custom-manual "(gnus)Article Hiding")
68 (defgroup gnus-article-highlight nil
69 "Article highlighting."
70 :link '(custom-manual "(gnus)Article Highlighting")
74 (defgroup gnus-article-signature nil
76 :link '(custom-manual "(gnus)Article Signature")
79 (defgroup gnus-article-headers nil
81 :link '(custom-manual "(gnus)Hiding Headers")
84 (defgroup gnus-article-washing nil
85 "Special commands on articles."
86 :link '(custom-manual "(gnus)Article Washing")
89 (defgroup gnus-article-emphasis nil
90 "Fontisizing articles."
91 :link '(custom-manual "(gnus)Article Fontisizing")
94 (defgroup gnus-article-saving nil
96 :link '(custom-manual "(gnus)Saving Articles")
99 (defgroup gnus-article-mime nil
100 "Worshiping the MIME wonder."
101 :link '(custom-manual "(gnus)Using MIME")
102 :group 'gnus-article)
104 (defgroup gnus-article-buttons nil
105 "Pushable buttons in the article buffer."
106 :link '(custom-manual "(gnus)Article Buttons")
107 :group 'gnus-article)
109 (defgroup gnus-article-various nil
110 "Other article options."
111 :link '(custom-manual "(gnus)Misc Article")
112 :group 'gnus-article)
114 (defcustom gnus-ignored-headers
115 '("^Path:" "^Expires:" "^Date-Received:" "^References:" "^Xref:" "^Lines:"
116 "^Relay-Version:" "^Message-ID:" "^Approved:" "^Sender:" "^Received:"
117 "^X-UIDL:" "^MIME-Version:" "^Return-Path:" "^In-Reply-To:"
118 "^Content-Type:" "^Content-Transfer-Encoding:" "^X-WebTV-Signature:"
119 "^X-MimeOLE:" "^X-MSMail-Priority:" "^X-Priority:" "^X-Loop:"
120 "^X-Authentication-Warning:" "^X-MIME-Autoconverted:" "^X-Face:"
121 "^X-Attribution:" "^X-Originating-IP:" "^Delivered-To:"
122 "^NNTP-[-A-Za-z]+:" "^Distribution:" "^X-no-archive:" "^X-Trace:"
123 "^X-Complaints-To:" "^X-NNTP-Posting-Host:" "^X-Orig.*:"
124 "^Abuse-Reports-To:" "^Cache-Post-Path:" "^X-Article-Creation-Date:"
125 "^X-Poster:" "^X-Mail2News-Path:" "^X-Server-Date:" "^X-Cache:"
126 "^Originator:" "^X-Problems-To:" "^X-Auth-User:" "^X-Post-Time:"
127 "^X-Admin:" "^X-UID:" "^Resent-[-A-Za-z]+:" "^X-Mailing-List:"
128 "^Precedence:" "^Original-[-A-Za-z]+:" "^X-filename:" "^X-Orcpt:"
129 "^Old-Received:" "^X-Pgp-Fingerprint:" "^X-Pgp-Key-Id:"
130 "^X-Pgp-Public-Key-Url:" "^X-Auth:" "^X-From-Line:"
131 "^X-Gnus-Article-Number:" "^X-Majordomo:" "^X-Url:" "^X-Sender:"
132 "^X-Mailing-List:" "^MBOX-Line" "^Priority:" "^X-Pgp" "^X400-[-A-Za-z]+:"
133 "^Status:" "^X-Gnus-Mail-Source:" "^Cancel-Lock:")
134 "*All headers that start with this regexp will be hidden.
135 This variable can also be a list of regexps of headers to be ignored.
136 If `gnus-visible-headers' is non-nil, this variable will be ignored."
137 :type '(choice :custom-show nil
140 :group 'gnus-article-hiding)
142 (defcustom gnus-visible-headers
143 "^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:"
144 "*All headers that do not match this regexp will be hidden.
145 This variable can also be a list of regexp of headers to remain visible.
146 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
147 :type '(repeat :value-to-internal (lambda (widget value)
148 (custom-split-regexp-maybe value))
149 :match (lambda (widget value)
151 (widget-editable-list-match widget value)))
153 :group 'gnus-article-hiding)
155 (defcustom gnus-sorted-header-list
156 '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:"
157 "^Followup-To:" "^To:" "^Cc:" "^Date:" "^Organization:")
158 "*This variable is a list of regular expressions.
159 If it is non-nil, headers that match the regular expressions will
160 be placed first in the article buffer in the sequence specified by
162 :type '(repeat regexp)
163 :group 'gnus-article-hiding)
165 (defcustom gnus-boring-article-headers '(empty followup-to reply-to)
166 "Headers that are only to be displayed if they have interesting data.
167 Possible values in this list are `empty', `newsgroups', `followup-to',
168 `reply-to', `date', `long-to', and `many-to'."
169 :type '(set (const :tag "Headers with no content." empty)
170 (const :tag "Newsgroups with only one group." newsgroups)
171 (const :tag "Followup-to identical to newsgroups." followup-to)
172 (const :tag "Reply-to identical to from." reply-to)
173 (const :tag "Date less than four days old." date)
174 (const :tag "Very long To header." long-to)
175 (const :tag "Multiple To headers." many-to))
176 :group 'gnus-article-hiding)
178 (defcustom gnus-signature-separator '("^-- $" "^-- *$")
179 "Regexp matching signature separator.
180 This can also be a list of regexps. In that case, it will be checked
181 from head to tail looking for a separator. Searches will be done from
182 the end of the buffer."
183 :type '(repeat string)
184 :group 'gnus-article-signature)
186 (defcustom gnus-signature-limit nil
187 "Provide a limit to what is considered a signature.
188 If it is a number, no signature may not be longer (in characters) than
189 that number. If it is a floating point number, no signature may be
190 longer (in lines) than that number. If it is a function, the function
191 will be called without any parameters, and if it returns nil, there is
192 no signature in the buffer. If it is a string, it will be used as a
193 regexp. If it matches, the text in question is not a signature."
194 :type '(choice (integer :value 200)
196 (function :value fun)
197 (regexp :value ".*"))
198 :group 'gnus-article-signature)
200 (defcustom gnus-hidden-properties '(invisible t intangible t)
201 "Property list to use for hiding text."
203 :group 'gnus-article-hiding)
205 (defcustom gnus-article-x-face-command
206 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
207 "*String or function to be executed to display an X-Face header.
208 If it is a string, the command will be executed in a sub-shell
209 asynchronously. The compressed face will be piped to this command."
210 :type 'string ;Leave function case to Lisp.
211 :group 'gnus-article-washing)
213 (defcustom gnus-article-x-face-too-ugly nil
214 "Regexp matching posters whose face shouldn't be shown automatically."
215 :type '(choice regexp (const nil))
216 :group 'gnus-article-washing)
218 (defcustom gnus-emphasis-alist
220 "\\(\\s-\\|^\\|[-\"]\\|\\s(\\|\\s)\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\\(\\s-\\|[-?!.,;:\"]\\|\\s(\\|\\s)\\)")
222 '(("_" "_" underline)
225 ("_/" "/_" underline-italic)
226 ("_\\*" "\\*_" underline-bold)
227 ("\\*/" "/\\*" bold-italic)
228 ("_\\*/" "/\\*_" underline-bold-italic))))
229 `(("\\(\\s-\\|^\\)\\(_\\(\\(\\w\\|_[^_]\\)+\\)_\\)\\(\\s-\\|[?!.,;]\\)"
230 2 3 gnus-emphasis-underline)
234 (format format (car spec) (cadr spec))
235 2 3 (intern (format "gnus-emphasis-%s" (nth 2 spec)))))
237 "*Alist that says how to fontify certain phrases.
238 Each item looks like this:
240 (\"_\\\\(\\\\w+\\\\)_\" 0 1 'underline)
242 The first element is a regular expression to be matched. The second
243 is a number that says what regular expression grouping used to find
244 the entire emphasized word. The third is a number that says what
245 regexp grouping should be displayed and highlighted. The fourth
246 is the face used for highlighting."
247 :type '(repeat (list :value ("" 0 0 default)
249 (integer :tag "Match group")
250 (integer :tag "Emphasize group")
252 :group 'gnus-article-emphasis)
254 (defface gnus-emphasis-bold '((t (:bold t)))
255 "Face used for displaying strong emphasized text (*word*)."
256 :group 'gnus-article-emphasis)
258 (defface gnus-emphasis-italic '((t (:italic t)))
259 "Face used for displaying italic emphasized text (/word/)."
260 :group 'gnus-article-emphasis)
262 (defface gnus-emphasis-underline '((t (:underline t)))
263 "Face used for displaying underlined emphasized text (_word_)."
264 :group 'gnus-article-emphasis)
266 (defface gnus-emphasis-underline-bold '((t (:bold t :underline t)))
267 "Face used for displaying underlined bold emphasized text (_*word*_)."
268 :group 'gnus-article-emphasis)
270 (defface gnus-emphasis-underline-italic '((t (:italic t :underline t)))
271 "Face used for displaying underlined italic emphasized text (_*word*_)."
272 :group 'gnus-article-emphasis)
274 (defface gnus-emphasis-bold-italic '((t (:bold t :italic t)))
275 "Face used for displaying bold italic emphasized text (/*word*/)."
276 :group 'gnus-article-emphasis)
278 (defface gnus-emphasis-underline-bold-italic
279 '((t (:bold t :italic t :underline t)))
280 "Face used for displaying underlined bold italic emphasized text.
281 Esample: (_/*word*/_)."
282 :group 'gnus-article-emphasis)
284 (defcustom gnus-article-time-format "%a, %b %d %Y %T %Z"
285 "Format for display of Date headers in article bodies.
286 See `format-time-string' for the possible values.
288 The variable can also be function, which should return a complete Date
289 header. The function is called with one argument, the time, which can
290 be fed to `format-time-string'."
291 :type '(choice string symbol)
292 :link '(custom-manual "(gnus)Article Date")
293 :group 'gnus-article-washing)
296 (autoload 'mail-extract-address-components "mail-extr"))
298 (defcustom gnus-save-all-headers t
299 "*If non-nil, don't remove any headers before saving."
300 :group 'gnus-article-saving
303 (defcustom gnus-prompt-before-saving 'always
304 "*This variable says how much prompting is to be done when saving articles.
305 If it is nil, no prompting will be done, and the articles will be
306 saved to the default files. If this variable is `always', each and
307 every article that is saved will be preceded by a prompt, even when
308 saving large batches of articles. If this variable is neither nil not
309 `always', there the user will be prompted once for a file name for
310 each invocation of the saving commands."
311 :group 'gnus-article-saving
312 :type '(choice (item always)
313 (item :tag "never" nil)
314 (sexp :tag "once" :format "%t\n" :value t)))
316 (defcustom gnus-saved-headers gnus-visible-headers
317 "Headers to keep if `gnus-save-all-headers' is nil.
318 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
319 If that variable is nil, however, all headers that match this regexp
320 will be kept while the rest will be deleted before saving."
321 :group 'gnus-article-saving
324 (defcustom gnus-default-article-saver 'gnus-summary-save-in-rmail
325 "A function to save articles in your favourite format.
326 The function must be interactively callable (in other words, it must
327 be an Emacs command).
329 Gnus provides the following functions:
331 * gnus-summary-save-in-rmail (Rmail format)
332 * gnus-summary-save-in-mail (Unix mail format)
333 * gnus-summary-save-in-folder (MH folder)
334 * gnus-summary-save-in-file (article format)
335 * gnus-summary-save-in-vm (use VM's folder format)
336 * gnus-summary-write-to-file (article format -- overwrite)."
337 :group 'gnus-article-saving
338 :type '(radio (function-item gnus-summary-save-in-rmail)
339 (function-item gnus-summary-save-in-mail)
340 (function-item gnus-summary-save-in-folder)
341 (function-item gnus-summary-save-in-file)
342 (function-item gnus-summary-save-in-vm)
343 (function-item gnus-summary-write-to-file)))
345 (defcustom gnus-rmail-save-name 'gnus-plain-save-name
346 "A function generating a file name to save articles in Rmail format.
347 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
348 :group 'gnus-article-saving
351 (defcustom gnus-mail-save-name 'gnus-plain-save-name
352 "A function generating a file name to save articles in Unix mail format.
353 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
354 :group 'gnus-article-saving
357 (defcustom gnus-folder-save-name 'gnus-folder-save-name
358 "A function generating a file name to save articles in MH folder.
359 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
360 :group 'gnus-article-saving
363 (defcustom gnus-file-save-name 'gnus-numeric-save-name
364 "A function generating a file name to save articles in article format.
365 The function is called with NEWSGROUP, HEADERS, and optional
367 :group 'gnus-article-saving
370 (defcustom gnus-split-methods
371 '((gnus-article-archive-name)
372 (gnus-article-nndoc-name))
373 "*Variable used to suggest where articles are to be saved.
374 For instance, if you would like to save articles related to Gnus in
375 the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
376 you could set this variable to something like:
378 '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
379 (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
381 This variable is an alist where the where the key is the match and the
382 value is a list of possible files to save in if the match is non-nil.
384 If the match is a string, it is used as a regexp match on the
385 article. If the match is a symbol, that symbol will be funcalled
386 from the buffer of the article to be saved with the newsgroup as the
387 parameter. If it is a list, it will be evaled in the same buffer.
389 If this form or function returns a string, this string will be used as
390 a possible file name; and if it returns a non-nil list, that list will
391 be used as possible file names."
392 :group 'gnus-article-saving
393 :type '(repeat (choice (list :value (fun) function)
394 (cons :value ("" "") regexp (repeat string))
397 (defcustom gnus-article-display-method-for-mime
398 'gnus-article-display-mime-message
399 "Function to display a MIME message.
400 The function is called from the article buffer."
401 :group 'gnus-article-mime
404 (defcustom gnus-article-display-method-for-traditional
405 'gnus-article-display-traditional-message
406 "*Function to display a traditional message.
407 The function is called from the article buffer."
408 :group 'gnus-article-mime
411 (defcustom gnus-page-delimiter "^\^L"
412 "*Regexp describing what to use as article page delimiters.
413 The default value is \"^\^L\", which is a form linefeed at the
414 beginning of a line."
416 :group 'gnus-article-various)
418 (defcustom gnus-article-mode-line-format "Gnus: %g %S%m"
419 "*The format specification for the article mode line.
420 See `gnus-summary-mode-line-format' for a closer description.
422 The following additional specs are available:
424 %w The article washing status.
425 %m The number of MIME parts in the article."
427 :group 'gnus-article-various)
429 (defcustom gnus-article-mode-hook nil
430 "*A hook for Gnus article mode."
432 :group 'gnus-article-various)
434 (defcustom gnus-article-menu-hook nil
435 "*Hook run after the creation of the article mode menu."
437 :group 'gnus-article-various)
439 (defcustom gnus-article-prepare-hook nil
440 "*A hook called after an article has been prepared in the article buffer."
442 :group 'gnus-article-various)
444 (defcustom gnus-article-hide-pgp-hook nil
445 "*A hook called after successfully hiding a PGP signature."
447 :group 'gnus-article-various)
449 (defcustom gnus-article-button-face 'bold
450 "Face used for highlighting buttons in the article buffer.
452 An article button is a piece of text that you can activate by pressing
453 `RET' or `mouse-2' above it."
455 :group 'gnus-article-buttons)
457 (defcustom gnus-article-mouse-face 'highlight
458 "Face used for mouse highlighting in the article buffer.
460 Article buttons will be displayed in this face when the cursor is
463 :group 'gnus-article-buttons)
465 (defcustom gnus-signature-face 'gnus-signature-face
466 "Face used for highlighting a signature in the article buffer.
467 Obsolete; use the face `gnus-signature-face' for customizations instead."
469 :group 'gnus-article-highlight
470 :group 'gnus-article-signature)
472 (defface gnus-signature-face
475 "Face used for highlighting a signature in the article buffer."
476 :group 'gnus-article-highlight
477 :group 'gnus-article-signature)
479 (defface gnus-header-from-face
482 (:foreground "spring green"))
485 (:foreground "red3"))
488 "Face used for displaying from headers."
489 :group 'gnus-article-headers
490 :group 'gnus-article-highlight)
492 (defface gnus-header-subject-face
495 (:foreground "SeaGreen3"))
498 (:foreground "red4"))
500 (:bold t :italic t)))
501 "Face used for displaying subject headers."
502 :group 'gnus-article-headers
503 :group 'gnus-article-highlight)
505 (defface gnus-header-newsgroups-face
508 (:foreground "yellow" :italic t))
511 (:foreground "MidnightBlue" :italic t))
514 "Face used for displaying newsgroups headers."
515 :group 'gnus-article-headers
516 :group 'gnus-article-highlight)
518 (defface gnus-header-name-face
521 (:foreground "SeaGreen"))
524 (:foreground "maroon"))
527 "Face used for displaying header names."
528 :group 'gnus-article-headers
529 :group 'gnus-article-highlight)
531 (defface gnus-header-content-face
534 (:foreground "forest green" :italic t))
537 (:foreground "indianred4" :italic t))
539 (:italic t))) "Face used for displaying header content."
540 :group 'gnus-article-headers
541 :group 'gnus-article-highlight)
543 (defcustom gnus-header-face-alist
544 '(("From" nil gnus-header-from-face)
545 ("Subject" nil gnus-header-subject-face)
546 ("Newsgroups:.*," nil gnus-header-newsgroups-face)
547 ("" gnus-header-name-face gnus-header-content-face))
548 "*Controls highlighting of article header.
550 An alist of the form (HEADER NAME CONTENT).
552 HEADER is a regular expression which should match the name of an
553 header header and NAME and CONTENT are either face names or nil.
555 The name of each header field will be displayed using the face
556 specified by the first element in the list where HEADER match the
557 header name and NAME is non-nil. Similarly, the content will be
558 displayed by the first non-nil matching CONTENT face."
559 :group 'gnus-article-headers
560 :group 'gnus-article-highlight
561 :type '(repeat (list (regexp :tag "Header")
563 (item :tag "skip" nil)
564 (face :value default))
565 (choice :tag "Content"
566 (item :tag "skip" nil)
567 (face :value default)))))
569 (defcustom gnus-article-decode-hook nil
570 "*Hook run to decode charsets in articles."
571 :group 'gnus-article-headers
574 (defcustom gnus-display-mime-function 'gnus-display-mime
575 "Function to display MIME articles."
576 :group 'gnus-article-mime
579 (defvar gnus-decode-header-function 'mail-decode-encoded-word-region
580 "Function used to decode headers.")
582 (defvar gnus-article-dumbquotes-map
600 "Table for MS-to-Latin1 translation.")
602 (defcustom gnus-ignored-mime-types nil
603 "List of MIME types that should be ignored by Gnus."
604 :group 'gnus-article-mime
605 :type '(repeat regexp))
607 (defcustom gnus-unbuttonized-mime-types '(".*/.*")
608 "List of MIME types that should not be given buttons when rendered."
609 :group 'gnus-article-mime
610 :type '(repeat regexp))
612 (defcustom gnus-article-mime-part-function nil
613 "Function called with a MIME handle as the argument.
614 This is meant for people who want to do something automatic based
615 on parts -- for instance, adding Vcard info to a database."
616 :group 'gnus-article-mime
619 (defcustom gnus-mime-multipart-functions nil
620 "An alist of MIME types to functions to display them.")
622 (defcustom gnus-article-date-lapsed-new-header nil
623 "Whether the X-Sent and Date headers can coexist.
624 When using `gnus-treat-date-lapsed', the \"X-Sent:\" header will
625 either replace the old \"Date:\" header (if this variable is nil), or
626 be added below it (otherwise)."
627 :group 'gnus-article-headers
631 ;;; The treatment variables
634 (defvar gnus-part-display-hook nil
635 "Hook called on parts that are to receive treatment.")
637 (defvar gnus-article-treat-custom
638 '(choice (const :tag "Off" nil)
640 (const :tag "Header" head)
641 (const :tag "Last" last)
642 (integer :tag "Less")
643 (sexp :tag "Predicate")))
645 (defvar gnus-article-treat-head-custom
646 '(choice (const :tag "Off" nil)
647 (const :tag "Header" head)))
649 (defvar gnus-article-treat-types '("text/plain")
652 (defvar gnus-inhibit-treatment nil
653 "Whether to inhibit treatment.")
655 (defcustom gnus-treat-highlight-signature '(or last (typep "text/x-vcard"))
656 "Highlight the signature.
657 Valid values are nil, t, `head', `last', an integer or a predicate.
658 See the manual for details."
659 :group 'gnus-article-treat
660 :type gnus-article-treat-custom)
661 (put 'gnus-treat-highlight-signature 'highlight t)
663 (defcustom gnus-treat-buttonize t
665 Valid values are nil, t, `head', `last', an integer or a predicate.
666 See the manual for details."
667 :group 'gnus-article-treat
668 :type gnus-article-treat-custom)
669 (put 'gnus-treat-buttonize 'highlight t)
671 (defcustom gnus-treat-buttonize-head 'head
672 "Add buttons to the head.
673 Valid values are nil, t, `head', `last', an integer or a predicate.
674 See the manual for details."
675 :group 'gnus-article-treat
676 :type gnus-article-treat-head-custom)
677 (put 'gnus-treat-buttonize-head 'highlight t)
679 (defcustom gnus-treat-emphasize t
681 Valid values are nil, t, `head', `last', an integer or a predicate.
682 See the manual for details."
683 :group 'gnus-article-treat
684 :type gnus-article-treat-custom)
685 (put 'gnus-treat-emphasize 'highlight t)
687 (defcustom gnus-treat-strip-cr nil
688 "Remove carriage returns.
689 Valid values are nil, t, `head', `last', an integer or a predicate.
690 See the manual for details."
691 :group 'gnus-article-treat
692 :type gnus-article-treat-custom)
694 (defcustom gnus-treat-hide-headers 'head
696 Valid values are nil, t, `head', `last', an integer or a predicate.
697 See the manual for details."
698 :group 'gnus-article-treat
699 :type gnus-article-treat-head-custom)
701 (defcustom gnus-treat-hide-boring-headers nil
702 "Hide boring headers.
703 Valid values are nil, t, `head', `last', an integer or a predicate.
704 See the manual for details."
705 :group 'gnus-article-treat
706 :type gnus-article-treat-head-custom)
708 (defcustom gnus-treat-hide-signature nil
710 Valid values are nil, t, `head', `last', an integer or a predicate.
711 See the manual for details."
712 :group 'gnus-article-treat
713 :type gnus-article-treat-custom)
715 (defcustom gnus-treat-fill-article nil
717 Valid values are nil, t, `head', `last', an integer or a predicate.
718 See the manual for details."
719 :group 'gnus-article-treat
720 :type gnus-article-treat-custom)
722 (defcustom gnus-treat-hide-citation nil
724 Valid values are nil, t, `head', `last', an integer or a predicate.
725 See the manual for details."
726 :group 'gnus-article-treat
727 :type gnus-article-treat-custom)
729 (defcustom gnus-treat-strip-pgp t
730 "Strip PGP signatures.
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)
736 (defcustom gnus-treat-strip-pem nil
737 "Strip PEM signatures.
738 Valid values are nil, t, `head', `last', an integer or a predicate.
739 See the manual for details."
740 :group 'gnus-article-treat
741 :type gnus-article-treat-custom)
743 (defcustom gnus-treat-strip-banner t
744 "Strip banners from articles.
745 The banner to be stripped is specified in the `banner' group parameter.
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-custom)
751 (defcustom gnus-treat-highlight-headers 'head
752 "Highlight the 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)
757 (put 'gnus-treat-highlight-headers 'highlight t)
759 (defcustom gnus-treat-highlight-citation t
760 "Highlight cited text.
761 Valid values are nil, t, `head', `last', an integer or a predicate.
762 See the manual for details."
763 :group 'gnus-article-treat
764 :type gnus-article-treat-custom)
765 (put 'gnus-treat-highlight-citation 'highlight t)
767 (defcustom gnus-treat-date-ut nil
768 "Display the Date in UT (GMT).
769 Valid values are nil, t, `head', `last', an integer or a predicate.
770 See the manual for details."
771 :group 'gnus-article-treat
772 :type gnus-article-treat-head-custom)
774 (defcustom gnus-treat-date-local nil
775 "Display the Date in the local timezone.
776 Valid values are nil, t, `head', `last', an integer or a predicate.
777 See the manual for details."
778 :group 'gnus-article-treat
779 :type gnus-article-treat-head-custom)
781 (defcustom gnus-treat-date-lapsed nil
782 "Display the Date header in a way that says how much time has elapsed.
783 Valid values are nil, t, `head', `last', an integer or a predicate.
784 See the manual for details."
785 :group 'gnus-article-treat
786 :type gnus-article-treat-head-custom)
788 (defcustom gnus-treat-date-original nil
789 "Display the date in the original timezone.
790 Valid values are nil, t, `head', `last', an integer or a predicate.
791 See the manual for details."
792 :group 'gnus-article-treat
793 :type gnus-article-treat-head-custom)
795 (defcustom gnus-treat-date-iso8601 nil
796 "Display the date in the ISO8601 format.
797 Valid values are nil, t, `head', `last', an integer or a predicate.
798 See the manual for details."
799 :group 'gnus-article-treat
800 :type gnus-article-treat-head-custom)
802 (defcustom gnus-treat-date-user-defined nil
803 "Display the date in a user-defined format.
804 The format is defined by the `gnus-article-time-format' variable.
805 Valid values are nil, t, `head', `last', an integer or a predicate.
806 See the manual for details."
807 :group 'gnus-article-treat
808 :type gnus-article-treat-head-custom)
810 (defcustom gnus-treat-strip-headers-in-body t
811 "Strip the X-No-Archive header line from the beginning of the body.
812 Valid values are nil, t, `head', `last', an integer or a predicate.
813 See the manual for details."
814 :group 'gnus-article-treat
815 :type gnus-article-treat-custom)
817 (defcustom gnus-treat-strip-trailing-blank-lines nil
818 "Strip trailing blank lines.
819 Valid values are nil, t, `head', `last', an integer or a predicate.
820 See the manual for details."
821 :group 'gnus-article-treat
822 :type gnus-article-treat-custom)
824 (defcustom gnus-treat-strip-leading-blank-lines nil
825 "Strip leading blank lines.
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-custom)
831 (defcustom gnus-treat-strip-multiple-blank-lines nil
832 "Strip multiple blank lines.
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-custom)
838 (defcustom gnus-treat-strip-blank-lines nil
839 "Strip all blank lines.
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-custom)
845 (defcustom gnus-treat-overstrike t
846 "Treat overstrike highlighting.
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-custom)
851 (put 'gnus-treat-overstrike 'highlight t)
853 (defcustom gnus-treat-display-xface (if (and gnus-xemacs (featurep 'xface))
855 "Display X-Face headers.
856 Valid values are nil, t, `head', `last', an integer or a predicate.
857 See the manual for details."
858 :group 'gnus-article-treat
859 :type gnus-article-treat-head-custom)
860 (put 'gnus-treat-display-xface 'highlight t)
862 (defcustom gnus-treat-display-smileys (if (and gnus-xemacs
866 Valid values are nil, t, `head', `last', an integer or a predicate.
867 See the manual for details."
868 :group 'gnus-article-treat
869 :type gnus-article-treat-custom)
870 (put 'gnus-treat-display-smileys 'highlight t)
872 (defcustom gnus-treat-display-picons (if gnus-xemacs 'head nil)
874 Valid values are nil, t, `head', `last', an integer or a predicate.
875 See the manual for details."
876 :group 'gnus-article-treat
877 :type gnus-article-treat-head-custom)
878 (put 'gnus-treat-display-picons 'highlight t)
880 (defcustom gnus-treat-capitalize-sentences nil
881 "Capitalize sentence-starting words.
882 Valid values are nil, t, `head', `last', an integer or a predicate.
883 See the manual for details."
884 :group 'gnus-article-treat
885 :type gnus-article-treat-custom)
887 (defcustom gnus-treat-fill-long-lines nil
889 Valid values are nil, t, `head', `last', an integer or a predicate.
890 See the manual for details."
891 :group 'gnus-article-treat
892 :type gnus-article-treat-custom)
894 (defcustom gnus-treat-play-sounds nil
896 Valid values are nil, t, `head', `last', an integer or a predicate.
897 See the manual for details."
898 :group 'gnus-article-treat
899 :type gnus-article-treat-custom)
901 (defcustom gnus-treat-decode-message-body-as-default-mime-charset nil
902 "Decode the message body as `default-mime-charset'.
903 Recommended values are nil or `nomime'.
904 See the manual for details."
905 :group 'gnus-article-treat
906 :type '(choice (const :tag "Off" nil)
907 (const :tag "On" nomime)))
909 ;;; Internal variables
911 (defvar article-goto-body-goes-to-point-min-p nil)
912 (defvar gnus-article-wash-types nil)
914 (defvar gnus-article-mime-handle-alist-1 nil)
915 (defvar gnus-treatment-function-alist
916 '((gnus-treat-strip-banner gnus-article-strip-banner)
917 (gnus-treat-strip-headers-in-body gnus-article-strip-headers-in-body)
918 (gnus-treat-buttonize gnus-article-add-buttons)
919 (gnus-treat-fill-article gnus-article-fill-cited-article)
920 (gnus-treat-fill-long-lines gnus-article-fill-long-lines)
921 (gnus-treat-strip-cr gnus-article-remove-cr)
922 (gnus-treat-emphasize gnus-article-emphasize)
923 (gnus-treat-hide-headers gnus-article-maybe-hide-headers)
924 (gnus-treat-hide-boring-headers gnus-article-hide-boring-headers)
925 (gnus-treat-hide-signature gnus-article-hide-signature)
926 (gnus-treat-hide-citation gnus-article-hide-citation)
927 (gnus-treat-strip-pgp gnus-article-hide-pgp)
928 (gnus-treat-strip-pem gnus-article-hide-pem)
929 (gnus-treat-highlight-headers gnus-article-highlight-headers)
930 (gnus-treat-highlight-citation gnus-article-highlight-citation)
931 (gnus-treat-highlight-signature gnus-article-highlight-signature)
932 (gnus-treat-date-ut gnus-article-date-ut)
933 (gnus-treat-date-local gnus-article-date-local)
934 (gnus-treat-date-lapsed gnus-article-date-lapsed)
935 (gnus-treat-date-original gnus-article-date-original)
936 (gnus-treat-date-user-defined gnus-article-date-user)
937 (gnus-treat-date-iso8601 gnus-article-date-iso8601)
938 (gnus-treat-strip-trailing-blank-lines
939 gnus-article-remove-trailing-blank-lines)
940 (gnus-treat-strip-leading-blank-lines
941 gnus-article-strip-leading-blank-lines)
942 (gnus-treat-strip-multiple-blank-lines
943 gnus-article-strip-multiple-blank-lines)
944 (gnus-treat-strip-blank-lines gnus-article-strip-blank-lines)
945 (gnus-treat-overstrike gnus-article-treat-overstrike)
946 (gnus-treat-buttonize-head gnus-article-add-buttons-to-head)
947 (gnus-treat-display-xface gnus-article-display-x-face)
948 (gnus-treat-display-smileys gnus-smiley-display)
949 (gnus-treat-display-picons gnus-article-display-picons)
950 (gnus-treat-play-sounds gnus-earcon-display)
951 (gnus-treat-decode-message-body-as-default-mime-charset
952 gnus-article-decode-message-body-as-default-mime-charset)))
954 (defvar gnus-article-mime-handle-alist nil)
955 (defvar article-lapsed-timer nil)
956 (defvar gnus-article-current-summary nil)
958 (defvar gnus-article-mode-syntax-table
959 (let ((table (copy-syntax-table text-mode-syntax-table)))
960 (modify-syntax-entry ?- "w" table)
961 (modify-syntax-entry ?> ")" table)
962 (modify-syntax-entry ?< "(" table)
964 "Syntax table used in article mode buffers.
965 Initialized from `text-mode-syntax-table.")
967 (defvar gnus-save-article-buffer nil)
969 (defvar gnus-article-mode-line-format-alist
970 (nconc '((?w (gnus-article-wash-status) ?s)
971 (?m (gnus-article-mime-part-status) ?s))
972 gnus-summary-mode-line-format-alist))
974 (defvar gnus-number-of-articles-to-be-saved nil)
976 (defvar gnus-inhibit-hiding nil)
978 (defsubst gnus-article-hide-text (b e props)
979 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
980 (add-text-properties b e props)
981 (when (memq 'intangible props)
983 (max (1- b) (point-min))
984 b 'intangible (cddr (memq 'intangible props)))))
985 (defsubst gnus-article-unhide-text (b e)
986 "Remove hidden text properties from region between B and E."
987 (remove-text-properties b e gnus-hidden-properties)
988 (when (memq 'intangible gnus-hidden-properties)
989 (put-text-property (max (1- b) (point-min))
992 (defun gnus-article-hide-text-type (b e type)
993 "Hide text of TYPE between B and E."
994 (push type gnus-article-wash-types)
995 (gnus-article-hide-text
996 b e (cons 'article-type (cons type gnus-hidden-properties))))
998 (defun gnus-article-unhide-text-type (b e type)
999 "Unhide text of TYPE between B and E."
1000 (setq gnus-article-wash-types
1001 (delq type gnus-article-wash-types))
1002 (remove-text-properties
1003 b e (cons 'article-type (cons type gnus-hidden-properties)))
1004 (when (memq 'intangible gnus-hidden-properties)
1005 (put-text-property (max (1- b) (point-min))
1006 b 'intangible nil)))
1008 (defun gnus-article-hide-text-of-type (type)
1009 "Hide text of TYPE in the current buffer."
1011 (let ((b (point-min))
1013 (while (setq b (text-property-any b e 'article-type type))
1014 (add-text-properties b (incf b) gnus-hidden-properties)))))
1016 (defun gnus-article-delete-text-of-type (type)
1017 "Delete text of TYPE in the current buffer."
1019 (let ((b (point-min)))
1020 (while (setq b (text-property-any b (point-max) 'article-type type))
1022 b (or (text-property-not-all b (point-max) 'article-type type)
1025 (defun gnus-article-delete-invisible-text ()
1026 "Delete all invisible text in the current buffer."
1028 (let ((b (point-min)))
1029 (while (setq b (text-property-any b (point-max) 'invisible t))
1031 b (or (text-property-not-all b (point-max) 'invisible t)
1034 (defun gnus-article-text-type-exists-p (type)
1035 "Say whether any text of type TYPE exists in the buffer."
1036 (text-property-any (point-min) (point-max) 'article-type type))
1038 (defsubst gnus-article-header-rank ()
1039 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1040 (let ((list gnus-sorted-header-list)
1043 (when (looking-at (car list))
1045 (setq list (cdr list))
1049 (defun article-hide-headers (&optional arg delete)
1050 "Hide unwanted headers and possibly sort them as well."
1051 (interactive (gnus-article-hidden-arg))
1052 ;; Lars said that this function might be inhibited.
1053 (if (gnus-article-check-hidden-text 'headers arg)
1055 ;; Show boring headers as well.
1056 (gnus-article-show-hidden-text 'boring-headers)
1057 (when (eq 1 (point-min))
1058 (set-window-start (get-buffer-window (current-buffer)) 1)))
1059 (unless gnus-inhibit-hiding
1062 (let ((buffer-read-only nil)
1063 (inhibit-read-only t)
1064 (case-fold-search t)
1065 (max (1+ (length gnus-sorted-header-list)))
1066 (ignored (when (not gnus-visible-headers)
1067 (cond ((stringp gnus-ignored-headers)
1068 gnus-ignored-headers)
1069 ((listp gnus-ignored-headers)
1070 (mapconcat 'identity gnus-ignored-headers
1073 (cond ((stringp gnus-visible-headers)
1074 gnus-visible-headers)
1075 ((and gnus-visible-headers
1076 (listp gnus-visible-headers))
1077 (mapconcat 'identity gnus-visible-headers "\\|"))))
1078 (inhibit-point-motion-hooks t)
1080 ;; First we narrow to just the headers.
1081 (article-narrow-to-head)
1082 ;; Hide any "From " lines at the beginning of (mail) articles.
1083 (while (looking-at "From ")
1087 (delete-region (point-min) (point))
1088 (gnus-article-hide-text (point-min) (point)
1089 (nconc (list 'article-type 'headers)
1090 gnus-hidden-properties))))
1091 ;; Then treat the rest of the header lines.
1092 ;; Then we use the two regular expressions
1093 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1094 ;; select which header lines is to remain visible in the
1096 (while (re-search-forward "^[^ \t]*:" nil t)
1098 ;; Mark the rank of the header.
1100 (point) (1+ (point)) 'message-rank
1101 (if (or (and visible (looking-at visible))
1103 (not (looking-at ignored))))
1104 (gnus-article-header-rank)
1107 (message-sort-headers-1)
1108 (when (setq beg (text-property-any
1109 (point-min) (point-max) 'message-rank (+ 2 max)))
1110 ;; We delete or make invisible the unwanted headers.
1113 (add-text-properties
1114 (point-min) (+ 5 (point-min))
1115 '(article-type headers dummy-invisible t))
1116 (delete-region beg (point-max)))
1117 (gnus-article-hide-text-type beg (point-max) 'headers))))))))
1120 (defun article-hide-boring-headers (&optional arg)
1121 "Toggle hiding of headers that aren't very interesting.
1122 If given a negative prefix, always show; if given a positive prefix,
1124 (interactive (gnus-article-hidden-arg))
1125 (when (and (not (gnus-article-check-hidden-text 'boring-headers arg))
1126 (not gnus-show-all-headers))
1129 (let ((buffer-read-only nil)
1130 (list gnus-boring-article-headers)
1131 (inhibit-point-motion-hooks t)
1133 (article-narrow-to-head)
1135 (setq elem (pop list))
1136 (goto-char (point-min))
1138 ;; Hide empty headers.
1140 (while (re-search-forward "^[^: \t]+:[ \t]*\n[^ \t]" nil t)
1142 (gnus-article-hide-text-type
1143 (progn (beginning-of-line) (point))
1146 (if (re-search-forward "^[^ \t]" nil t)
1150 ;; Hide boring Newsgroups header.
1151 ((eq elem 'newsgroups)
1152 (when (equal (gnus-fetch-field "newsgroups")
1153 (gnus-group-real-name
1154 (if (boundp 'gnus-newsgroup-name)
1157 (gnus-article-hide-header "newsgroups")))
1158 ((eq elem 'followup-to)
1159 (when (equal (message-fetch-field "followup-to")
1160 (message-fetch-field "newsgroups"))
1161 (gnus-article-hide-header "followup-to")))
1162 ((eq elem 'reply-to)
1163 (let ((from (message-fetch-field "from"))
1164 (reply-to (message-fetch-field "reply-to")))
1169 (nth 1 (funcall gnus-extract-address-components from))
1170 (nth 1 (funcall gnus-extract-address-components reply-to)))))
1171 (gnus-article-hide-header "reply-to"))))
1173 (let ((date (message-fetch-field "date")))
1175 (< (days-between (current-time-string) date)
1177 (gnus-article-hide-header "date"))))
1179 (let ((to (message-fetch-field "to")))
1180 (when (> (length to) 1024)
1181 (gnus-article-hide-header "to"))))
1184 (goto-char (point-min))
1185 (while (re-search-forward "^to:" nil t)
1186 (setq to-count (1+ to-count)))
1187 (when (> to-count 1)
1188 (while (> to-count 0)
1189 (goto-char (point-min))
1191 (re-search-forward "^to:" nil nil to-count)
1193 (narrow-to-region (point) (point-max))
1194 (gnus-article-hide-header "to"))
1195 (setq to-count (1- to-count)))))))))))))
1197 (defun gnus-article-hide-header (header)
1199 (goto-char (point-min))
1200 (when (re-search-forward (concat "^" header ":") nil t)
1201 (gnus-article-hide-text-type
1202 (progn (beginning-of-line) (point))
1205 (if (re-search-forward "^[^ \t]" nil t)
1210 (defun article-toggle-headers (&optional arg)
1211 "Toggle hiding of headers. If given a negative prefix, always show;
1212 if given a positive prefix, always hide."
1213 (interactive (gnus-article-hidden-arg))
1216 (let ((force (when (numberp arg)
1217 (cond ((> arg 0) 'always-hide)
1218 ((< arg 0) 'always-show))))
1219 (window (get-buffer-window gnus-article-buffer))
1220 (header-start (if (get-text-property
1221 (point-min) 'article-treated-header)
1223 (next-single-property-change
1224 (point-min) 'article-treated-header)))
1225 header-end field-start field-end
1226 (inhibit-read-only t)
1228 (while (and header-start
1229 (setq header-end (next-single-property-change
1230 header-start 'article-treated-header)))
1231 (narrow-to-region header-start header-end)
1232 (goto-char header-start)
1235 (and (not (eq 'always-hide force))
1236 (setq field-start (if (get-text-property
1237 header-start 'exposed-invisible-field)
1239 (next-single-property-change
1240 header-start 'exposed-invisible-field))))
1241 (while (and field-start
1242 ;; Under FSF Emacs, `next-single-property-change's
1243 ;; return value may be larger than point-max even if
1244 ;; the 4th arg LIMIT is specified.
1245 (< field-start header-end)
1246 (setq field-end (next-single-property-change
1248 'exposed-invisible-field)))
1249 (put-text-property field-start field-end
1250 'exposed-invisible-field nil)
1251 (put-text-property field-start field-end 'invisible t)
1252 (setq field-start (next-single-property-change
1253 field-end 'exposed-invisible-field))))
1254 (;; Expose invisible fields.
1255 (and (not (eq 'always-show force))
1256 (setq field-start (if (get-text-property header-start
1259 (next-single-property-change header-start
1261 (while (and field-start
1262 (< field-start header-end)
1263 (setq field-end (next-single-property-change
1264 field-start 'invisible)))
1265 ;; If the invisible text is not terminated with newline, we
1266 ;; won't expose it. Because it may be created by x-face-mule.
1267 (when (eq ?\n (char-before field-end))
1268 (put-text-property field-start field-end 'invisible nil)
1269 (put-text-property field-start field-end
1270 'exposed-invisible-field t))
1271 (setq field-start (next-single-property-change
1272 field-end 'invisible))))
1273 (;; Maybe hide fields.
1274 (not (eq 'always-show force))
1275 (gnus-article-maybe-hide-headers))
1277 (goto-char header-end)
1279 (setq header-start (next-single-property-change
1280 header-end 'article-treated-header)))
1281 (goto-char (point-min))
1283 (set-window-start window (point-min))))))
1285 (defvar gnus-article-normalized-header-length 40
1286 "Length of normalized headers.")
1288 (defun article-normalize-headers ()
1289 "Make all header lines 40 characters long."
1291 (let ((buffer-read-only nil)
1295 (article-narrow-to-head)
1298 ((< (setq column (- (gnus-point-at-eol) (point)))
1299 gnus-article-normalized-header-length)
1301 (insert (make-string
1302 (- gnus-article-normalized-header-length column)
1304 ((> column gnus-article-normalized-header-length)
1305 (gnus-put-text-property
1307 (forward-char gnus-article-normalized-header-length)
1314 (forward-line 1))))))
1316 (defun article-treat-dumbquotes ()
1317 "Translate M******** sm*rtq**t*s into proper text.
1318 Note that this function guesses whether a character is a sm*rtq**t* or
1319 not, so it should only be used interactively."
1321 (article-translate-strings gnus-article-dumbquotes-map))
1323 (defun article-translate-characters (from to)
1324 "Translate all characters in the body of the article according to FROM and TO.
1325 FROM is a string of characters to translate from; to is a string of
1326 characters to translate to."
1328 (when (article-goto-body)
1329 (let ((buffer-read-only nil)
1330 (x (make-string 225 ?x))
1332 (while (< (incf i) (length x))
1335 (while (< i (length from))
1336 (aset x (aref from i) (aref to i))
1338 (translate-region (point) (point-max) x)))))
1340 (defun article-translate-strings (map)
1341 "Translate all string in the body of the article according to MAP.
1342 MAP is an alist where the elements are on the form (\"from\" \"to\")."
1344 (when (article-goto-body)
1345 (let ((buffer-read-only nil)
1347 (while (setq elem (pop map))
1349 (while (search-forward (car elem) nil t)
1350 (replace-match (cadr elem)))))))))
1352 (defun article-treat-overstrike ()
1353 "Translate overstrikes into bold text."
1356 (when (article-goto-body)
1357 (let ((buffer-read-only nil))
1358 (while (search-forward "\b" nil t)
1359 (let ((next (char-after))
1360 (previous (char-after (- (point) 2))))
1361 ;; We do the boldification/underlining by hiding the
1362 ;; overstrikes and putting the proper text property
1366 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
1367 (put-text-property (point) (1+ (point)) 'face 'bold))
1369 (gnus-article-hide-text-type
1370 (1- (point)) (1+ (point)) 'overstrike)
1372 (- (point) 2) (1- (point)) 'face 'underline))
1374 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
1376 (point) (1+ (point)) 'face 'underline)))))))))
1378 (defun article-fill-long-lines ()
1379 "Fill lines that are wider than the window width."
1382 (let ((buffer-read-only nil)
1383 (width (window-width (get-buffer-window (current-buffer)))))
1386 (let ((adaptive-fill-mode nil))
1389 (when (>= (current-column) (min fill-column width))
1390 (narrow-to-region (point) (gnus-point-at-bol))
1391 (fill-paragraph nil)
1392 (goto-char (point-max))
1394 (forward-line 1)))))))
1396 (defun article-capitalize-sentences ()
1397 "Capitalize the first word in each sentence."
1400 (let ((buffer-read-only nil)
1401 (paragraph-start "^[\n\^L]"))
1405 (forward-sentence)))))
1407 (defun article-remove-cr ()
1408 "Remove trailing CRs and then translate remaining CRs into LFs."
1411 (let ((buffer-read-only nil))
1412 (goto-char (point-min))
1413 (while (re-search-forward "\r+$" nil t)
1414 (replace-match "" t t))
1415 (goto-char (point-min))
1416 (while (search-forward "\r" nil t)
1417 (replace-match "\n" t t)))))
1419 (defun article-remove-trailing-blank-lines ()
1420 "Remove all trailing blank lines from the article."
1423 (let ((buffer-read-only nil))
1424 (goto-char (point-max))
1428 (while (and (not (bobp))
1429 (looking-at "^[ \t]*$")
1430 (not (gnus-annotation-in-region-p
1431 (point) (gnus-point-at-eol))))
1436 (defun article-display-x-face (&optional force)
1437 "Look for an X-Face header and display it if present."
1438 (interactive (list 'force))
1440 ;; Delete the old process, if any.
1441 (when (process-status "article-x-face")
1442 (delete-process "article-x-face"))
1443 (let ((inhibit-point-motion-hooks t)
1444 (case-fold-search t)
1447 (article-narrow-to-head)
1448 (goto-char (point-min))
1449 (setq from (message-fetch-field "from"))
1450 (goto-char (point-min))
1451 (while (and gnus-article-x-face-command
1454 ;; Check whether this face is censored.
1455 (not gnus-article-x-face-too-ugly)
1456 (and gnus-article-x-face-too-ugly from
1457 (not (string-match gnus-article-x-face-too-ugly
1459 ;; Has to be present.
1460 (re-search-forward "^X-Face: " nil t))
1461 ;; This used to try to do multiple faces (`while' instead of
1462 ;; `when' above), but (a) sending multiple EOFs to xv doesn't
1463 ;; work (b) it can crash some versions of Emacs (c) are
1464 ;; multiple faces really something to encourage?
1465 (when (stringp gnus-article-x-face-command)
1467 ;; We now have the area of the buffer where the X-Face is stored.
1470 (end (1- (re-search-forward "^\\($\\|[^ \t]\\)" nil t))))
1471 ;; We display the face.
1472 (if (symbolp gnus-article-x-face-command)
1473 ;; The command is a lisp function, so we call it.
1474 (if (gnus-functionp gnus-article-x-face-command)
1475 (funcall gnus-article-x-face-command beg end)
1476 (error "%s is not a function" gnus-article-x-face-command))
1477 ;; The command is a string, so we interpret the command
1478 ;; as a, well, command, and fork it off.
1479 (let ((process-connection-type nil))
1480 (process-kill-without-query
1482 "article-x-face" nil shell-file-name shell-command-switch
1483 gnus-article-x-face-command))
1484 (process-send-region "article-x-face" beg end)
1485 (process-send-eof "article-x-face"))))))))))
1487 (defun article-decode-mime-words ()
1488 "Decode all MIME-encoded words in the article."
1491 (set-buffer gnus-article-buffer)
1492 (let ((inhibit-point-motion-hooks t)
1494 (mail-parse-charset gnus-newsgroup-charset))
1495 (mail-decode-encoded-word-region (point-min) (point-max)))))
1497 (defun article-decode-charset (&optional prompt)
1498 "Decode charset-encoded text in the article.
1499 If PROMPT (the prefix), prompt for a coding system to use."
1503 (article-narrow-to-head)
1504 (let* ((inhibit-point-motion-hooks t)
1505 (case-fold-search t)
1506 (ct (message-fetch-field "Content-Type" t))
1507 (cte (message-fetch-field "Content-Transfer-Encoding" t))
1508 (ctl (and ct (ignore-errors
1509 (mail-header-parse-content-type ct))))
1512 (mm-read-coding-system "Charset to decode: "))
1514 (mail-content-type-get ctl 'charset))))
1515 (mail-parse-charset gnus-newsgroup-charset)
1517 (when (memq charset gnus-newsgroup-ignored-charsets)
1519 (goto-char (point-max))
1522 (narrow-to-region (point) (point-max))
1523 (when (and (or (not ctl)
1524 (equal (car ctl) "text/plain"))
1527 charset (and cte (intern (downcase
1528 (gnus-strip-whitespace cte))))
1531 (defun article-decode-encoded-words ()
1532 "Remove encoded-word encoding from headers."
1533 (let (buffer-read-only)
1534 (let ((charset (save-excursion
1535 (set-buffer gnus-summary-buffer)
1536 default-mime-charset)))
1537 (mime-decode-header-in-buffer charset)
1540 (defun article-de-quoted-unreadable (&optional force)
1541 "Translate a quoted-printable-encoded article.
1542 If FORCE, decode the article whether it is marked as quoted-printable
1544 (interactive (list 'force))
1546 (let ((buffer-read-only nil)
1547 (type (gnus-fetch-field "content-transfer-encoding"))
1548 (charset gnus-newsgroup-charset))
1550 (and type (string-match "quoted-printable" (downcase type))))
1553 (narrow-to-region (point) (point-max))
1554 (quoted-printable-decode-region (point-min) (point-max))
1556 (mm-decode-body charset)))))))
1558 (defun article-hide-pgp ()
1559 "Remove any PGP headers and signatures in the current article."
1563 (let ((inhibit-point-motion-hooks t)
1564 buffer-read-only beg end)
1566 ;; Hide the "header".
1567 (when (re-search-forward "^-----BEGIN PGP SIGNED MESSAGE-----\n" nil t)
1568 (push 'pgp gnus-article-wash-types)
1569 (delete-region (match-beginning 0) (match-end 0))
1570 ;; PGP 5 and GNU PG add a `Hash: <>' comment, hide that too
1571 (when (looking-at "Hash:.*$")
1572 (delete-region (point) (1+ (gnus-point-at-eol))))
1574 ;; Hide the actual signature.
1575 (and (search-forward "\n-----BEGIN PGP SIGNATURE-----\n" nil t)
1576 (setq end (1+ (match-beginning 0)))
1579 (if (search-forward "\n-----END PGP SIGNATURE-----\n" nil t)
1581 ;; Perhaps we shouldn't hide to the end of the buffer
1582 ;; if there is no end to the signature?
1584 ;; Hide "- " PGP quotation markers.
1586 (narrow-to-region beg end)
1587 (goto-char (point-min))
1588 (while (re-search-forward "^- " nil t)
1590 (match-beginning 0) (match-end 0)))
1592 (gnus-run-hooks 'gnus-article-hide-pgp-hook))))))
1594 (defun article-hide-pem (&optional arg)
1595 "Toggle hiding of any PEM headers and signatures in the current article.
1596 If given a negative prefix, always show; if given a positive prefix,
1598 (interactive (gnus-article-hidden-arg))
1599 (unless (gnus-article-check-hidden-text 'pem arg)
1601 (let (buffer-read-only end)
1602 (goto-char (point-min))
1603 ;; Hide the horrendously ugly "header".
1604 (when (and (search-forward
1605 "\n-----BEGIN PRIVACY-ENHANCED MESSAGE-----\n"
1607 (setq end (1+ (match-beginning 0))))
1608 (push 'pem gnus-article-wash-types)
1609 (gnus-article-hide-text-type
1611 (if (search-forward "\n\n" nil t)
1615 ;; Hide the trailer as well
1616 (when (search-forward "\n-----END PRIVACY-ENHANCED MESSAGE-----\n"
1618 (gnus-article-hide-text-type
1619 (match-beginning 0) (match-end 0) 'pem)))))))
1621 (defun article-strip-banner ()
1622 "Strip the banner specified by the `banner' group parameter."
1626 (let ((inhibit-point-motion-hooks t)
1627 (banner (gnus-group-get-parameter gnus-newsgroup-name 'banner))
1628 (gnus-signature-limit nil)
1629 buffer-read-only beg end)
1633 ((eq banner 'signature)
1634 (when (gnus-article-narrow-to-signature)
1637 (delete-region (point) (point-max))))
1639 (while (re-search-forward banner nil t)
1640 (delete-region (match-beginning 0) (match-end 0))))))))))
1642 (defun article-hide-signature (&optional arg)
1643 "Hide the signature in the current article.
1644 If given a negative prefix, always show; if given a positive prefix,
1646 (interactive (gnus-article-hidden-arg))
1647 (unless (gnus-article-check-hidden-text 'signature arg)
1650 (let ((buffer-read-only nil))
1651 (when (gnus-article-narrow-to-signature)
1652 (gnus-article-hide-text-type
1653 (point-min) (point-max) 'signature)))))))
1655 (defun article-strip-headers-in-body ()
1656 "Strip offensive headers from bodies."
1660 (let ((case-fold-search t))
1661 (when (looking-at "x-no-archive:")
1662 (gnus-delete-line)))))
1664 (defun article-strip-leading-blank-lines ()
1665 "Remove all blank lines from the beginning of the article."
1668 (let ((inhibit-point-motion-hooks t)
1670 (when (article-goto-body)
1671 (while (and (not (eobp))
1672 (looking-at "[ \t]*$"))
1673 (gnus-delete-line))))))
1675 (defun article-narrow-to-head ()
1676 "Narrow the buffer to the head of the message.
1677 Point is left at the beginning of the narrowed-to region."
1679 (goto-char (point-min))
1680 (if (search-forward "\n\n" nil 1)
1683 (goto-char (point-min)))
1685 (defun article-goto-body ()
1686 "Place point at the start of the body."
1687 (goto-char (point-min))
1689 ;; This variable is only bound when dealing with separate
1691 (article-goto-body-goes-to-point-min-p
1693 ((search-forward "\n\n" nil t)
1696 (goto-char (point-max))
1699 (defun article-strip-multiple-blank-lines ()
1700 "Replace consecutive blank lines with one empty line."
1703 (let ((inhibit-point-motion-hooks t)
1705 ;; First make all blank lines empty.
1707 (while (re-search-forward "^[ \t]+$" nil t)
1708 (unless (gnus-annotation-in-region-p
1709 (match-beginning 0) (match-end 0))
1710 (replace-match "" nil t)))
1711 ;; Then replace multiple empty lines with a single empty line.
1713 (while (re-search-forward "\n\n\n+" nil t)
1714 (unless (gnus-annotation-in-region-p
1715 (match-beginning 0) (match-end 0))
1716 (replace-match "\n\n" t t))))))
1718 (defun article-strip-leading-space ()
1719 "Remove all white space from the beginning of the lines in the article."
1722 (let ((inhibit-point-motion-hooks t)
1725 (while (re-search-forward "^[ \t]+" nil t)
1726 (replace-match "" t t)))))
1728 (defun article-strip-trailing-space ()
1729 "Remove all white space from the end of the lines in the article."
1732 (let ((inhibit-point-motion-hooks t)
1735 (while (re-search-forward "[ \t]+$" nil t)
1736 (replace-match "" t t)))))
1738 (defun article-strip-blank-lines ()
1739 "Strip leading, trailing and multiple blank lines."
1741 (article-strip-leading-blank-lines)
1742 (article-remove-trailing-blank-lines)
1743 (article-strip-multiple-blank-lines))
1745 (defun article-strip-all-blank-lines ()
1746 "Strip all blank lines."
1749 (let ((inhibit-point-motion-hooks t)
1752 (while (re-search-forward "^[ \t]*\n" nil t)
1753 (replace-match "" t t)))))
1755 (defun gnus-article-narrow-to-signature ()
1756 "Narrow to the signature; return t if a signature is found, else nil."
1757 (let ((inhibit-point-motion-hooks t))
1758 (when (gnus-article-search-signature)
1760 ;; Check whether we have some limits to what we consider
1761 ;; to be a signature.
1762 (let ((limits (if (listp gnus-signature-limit) gnus-signature-limit
1763 (list gnus-signature-limit)))
1765 (while (setq limit (pop limits))
1766 (if (or (and (integerp limit)
1767 (< (- (point-max) (point)) limit))
1769 (< (count-lines (point) (point-max)) limit))
1770 (and (gnus-functionp limit)
1772 (and (stringp limit)
1773 (not (re-search-forward limit nil t))))
1774 () ; This limit did not succeed.
1778 (narrow-to-region (point) (point-max))
1781 (defun gnus-article-search-signature ()
1782 "Search the current buffer for the signature separator.
1783 Put point at the beginning of the signature separator."
1784 (let ((cur (point)))
1785 (goto-char (point-max))
1786 (if (if (stringp gnus-signature-separator)
1787 (re-search-backward gnus-signature-separator nil t)
1788 (let ((seps gnus-signature-separator))
1790 (not (re-search-backward (car seps) nil t)))
1797 (defun gnus-article-hidden-arg ()
1798 "Return the current prefix arg as a number, or 0 if no prefix."
1799 (list (if current-prefix-arg
1800 (prefix-numeric-value current-prefix-arg)
1803 (defun gnus-article-check-hidden-text (type arg)
1804 "Return nil if hiding is necessary.
1805 Arg can be nil or a number. Nil and positive means hide, negative
1806 means show, 0 means toggle."
1809 (let ((hide (gnus-article-hidden-text-p type)))
1815 (gnus-article-show-hidden-text type))
1817 (if (eq hide 'hidden)
1818 (gnus-article-show-hidden-text type)
1821 (defun gnus-article-hidden-text-p (type)
1822 "Say whether the current buffer contains hidden text of type TYPE."
1823 (let ((pos (text-property-any (point-min) (point-max) 'article-type type)))
1825 (not (get-text-property pos 'invisible))
1826 (not (get-text-property pos 'dummy-invisible)))
1828 (text-property-any (1+ pos) (point-max) 'article-type type)))
1833 (defun gnus-article-show-hidden-text (type &optional hide)
1834 "Show all hidden text of type TYPE.
1835 If HIDE, hide the text instead."
1837 (let ((buffer-read-only nil)
1838 (inhibit-point-motion-hooks t)
1841 (while (setq beg (text-property-any end (point-max) 'article-type type))
1844 (text-property-not-all beg (point-max) 'article-type type)
1847 (gnus-article-hide-text beg end gnus-hidden-properties)
1848 (gnus-article-unhide-text beg end))
1852 (defconst article-time-units
1853 `((year . ,(* 365.25 24 60 60))
1854 (week . ,(* 7 24 60 60))
1855 (day . ,(* 24 60 60))
1859 "Mapping from time units to seconds.")
1861 (defun article-date-ut (&optional type highlight header)
1862 "Convert DATE date to universal time in the current article.
1863 If TYPE is `local', convert to local time; if it is `lapsed', output
1864 how much time has lapsed since DATE. For `lapsed', the value of
1865 `gnus-article-date-lapsed-new-header' says whether the \"X-Sent:\" header
1866 should replace the \"Date:\" one, or should be added below it."
1867 (interactive (list 'ut t))
1868 (let* ((header (or header
1869 (and (eq 1 (point-min))
1870 (mail-header-date (save-excursion
1871 (set-buffer gnus-summary-buffer)
1872 gnus-current-headers)))
1873 (message-fetch-field "date")
1875 (date (if (vectorp header) (mail-header-date header)
1877 (inhibit-point-motion-hooks t)
1878 bface eface date-pos)
1879 (when (and date (not (string= date "")))
1882 (article-narrow-to-head)
1883 (when (or (and (eq type 'lapsed)
1884 gnus-article-date-lapsed-new-header
1885 ;; Attempt to get the face of X-Sent first.
1886 (re-search-forward "^X-Sent:[ \t]" nil t))
1887 (re-search-forward "^Date:[ \t]" nil t)
1888 ;; If Date is missing, try again for X-Sent.
1889 (re-search-forward "^X-Sent:[ \t]" nil t))
1890 (setq bface (get-text-property (gnus-point-at-bol) 'face)
1891 eface (get-text-property (1- (gnus-point-at-eol))
1893 (let ((buffer-read-only nil))
1894 ;; Delete any old X-Sent headers.
1895 (when (setq date-pos
1896 (next-single-property-change (point-min)
1897 'article-date-lapsed))
1898 (goto-char (setq date-pos (set-marker (make-marker) date-pos)))
1899 (delete-region (match-beginning 0)
1900 (progn (forward-line 1) (point))))
1901 (goto-char (point-min))
1902 ;; Delete any old Date headers.
1903 (while (re-search-forward "^Date:[ \t]" nil t)
1905 (setq date-pos (match-beginning 0)))
1906 (unless (and (eq type 'lapsed)
1907 gnus-article-date-lapsed-new-header)
1908 (delete-region (match-beginning 0)
1909 (progn (message-next-header) (point)))))
1912 (goto-char date-pos)
1914 ;; Possibly, Date has been deleted.
1916 (when (and (eq type 'lapsed)
1917 gnus-article-date-lapsed-new-header
1918 (looking-at "Date:"))
1920 (goto-char (point-min)))
1921 (insert (article-make-date-line date type))
1922 (when (eq type 'lapsed)
1923 (put-text-property (gnus-point-at-bol) (point)
1924 'article-date-lapsed t))
1928 (when (looking-at "\\([^:]+\\): *\\(.*\\)$")
1929 (put-text-property (match-beginning 1) (1+ (match-end 1))
1931 (put-text-property (match-beginning 2) (match-end 2)
1934 (defun article-make-date-line (date type)
1935 "Return a DATE line of TYPE."
1936 (let ((time (condition-case ()
1940 ;; Convert to the local timezone. We have to slap a
1941 ;; `condition-case' round the calls to the timezone
1942 ;; functions since they aren't particularly resistant to
1945 (let ((tz (car (current-time-zone))))
1946 (format "Date: %s %s%04d" (current-time-string time)
1947 (if (> tz 0) "+" "-") (abs (/ tz 36)))))
1948 ;; Convert to Universal Time.
1951 (current-time-string
1952 (let* ((e (parse-time-string date))
1953 (tm (apply 'encode-time e))
1955 (ls (- (cadr tm) (car (current-time-zone)))))
1956 (cond ((< ls 0) (list (1- ms) (+ ls 65536)))
1957 ((> ls 65535) (list (1+ ms) (- ls 65536)))
1960 ;; Get the original date from the article.
1961 ((eq type 'original)
1962 (concat "Date: " (if (string-match "\n+$" date)
1963 (substring date 0 (match-beginning 0))
1965 ;; Let the user define the format.
1967 (if (gnus-functionp gnus-article-time-format)
1968 (funcall gnus-article-time-format time)
1971 (format-time-string gnus-article-time-format time))))
1976 (format-time-string "%Y%m%dT%H%M%S" time)))
1977 ;; Do an X-Sent lapsed format.
1979 ;; If the date is seriously mangled, the timezone functions are
1980 ;; liable to bug out, so we ignore all errors.
1981 (let* ((now (current-time))
1982 (real-time (subtract-time now time))
1983 (real-sec (and real-time
1984 (+ (* (float (car real-time)) 65536)
1986 (sec (and real-time (abs real-sec)))
1996 ;; This is a bit convoluted, but basically we go
1997 ;; through the time units for years, weeks, etc,
1998 ;; and divide things to see whether that results
1999 ;; in positive answers.
2002 (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
2003 ;; The (remaining) seconds are too few to
2004 ;; be divided into this time unit.
2006 ;; It's big enough, so we output it.
2007 (setq sec (- sec (* num (cdr unit))))
2009 (concat (if prev ", " "") (int-to-string
2011 " " (symbol-name (car unit))
2012 (if (> num 1) "s" ""))
2014 article-time-units "")
2015 ;; If dates are odd, then it might appear like the
2016 ;; article was sent in the future.
2019 " in the future"))))))
2021 (error "Unknown conversion type: %s" type)))))
2023 (defun article-date-local (&optional highlight)
2024 "Convert the current article date to the local timezone."
2025 (interactive (list t))
2026 (article-date-ut 'local highlight))
2028 (defun article-date-original (&optional highlight)
2029 "Convert the current article date to what it was originally.
2030 This is only useful if you have used some other date conversion
2031 function and want to see what the date was before converting."
2032 (interactive (list t))
2033 (article-date-ut 'original highlight))
2035 (defun article-date-lapsed (&optional highlight)
2036 "Convert the current article date to time lapsed since it was sent."
2037 (interactive (list t))
2038 (article-date-ut 'lapsed highlight))
2040 (defun article-update-date-lapsed ()
2041 "Function to be run from a timer to update the lapsed time line."
2042 (let (deactivate-mark)
2047 (set-buffer (window-buffer w))
2048 (when (eq major-mode 'gnus-article-mode)
2049 (goto-char (point-min))
2050 (when (re-search-forward "^X-Sent:" nil t)
2051 (article-date-lapsed t))))
2054 (defun gnus-start-date-timer (&optional n)
2055 "Start a timer to update the X-Sent header in the article buffers.
2056 The numerical prefix says how frequently (in seconds) the function
2061 (gnus-stop-date-timer)
2062 (setq article-lapsed-timer
2063 (nnheader-run-at-time 1 n 'article-update-date-lapsed)))
2065 (defun gnus-stop-date-timer ()
2066 "Stop the X-Sent timer."
2068 (when article-lapsed-timer
2069 (nnheader-cancel-timer article-lapsed-timer)
2070 (setq article-lapsed-timer nil)))
2072 (defun article-date-user (&optional highlight)
2073 "Convert the current article date to the user-defined format.
2074 This format is defined by the `gnus-article-time-format' variable."
2075 (interactive (list t))
2076 (article-date-ut 'user highlight))
2078 (defun article-date-iso8601 (&optional highlight)
2079 "Convert the current article date to ISO8601."
2080 (interactive (list t))
2081 (article-date-ut 'iso8601 highlight))
2083 (defun article-show-all ()
2084 "Show all hidden text in the article buffer."
2087 (let ((buffer-read-only nil))
2088 (gnus-article-unhide-text (point-min) (point-max)))))
2090 (defun article-emphasize (&optional arg)
2091 "Emphasize text according to `gnus-emphasis-alist'."
2092 (interactive (gnus-article-hidden-arg))
2093 (unless (gnus-article-check-hidden-text 'emphasis arg)
2095 (let ((alist gnus-emphasis-alist)
2096 (buffer-read-only nil)
2097 (props (append '(article-type emphasis)
2098 gnus-hidden-properties))
2099 regexp elem beg invisible visible face)
2102 (while (setq elem (pop alist))
2104 (setq regexp (car elem)
2105 invisible (nth 1 elem)
2106 visible (nth 2 elem)
2108 (while (re-search-forward regexp nil t)
2109 (when (and (match-beginning visible) (match-beginning invisible))
2110 (gnus-article-hide-text
2111 (match-beginning invisible) (match-end invisible) props)
2112 (gnus-article-unhide-text-type
2113 (match-beginning visible) (match-end visible) 'emphasis)
2114 (gnus-put-text-property-excluding-newlines
2115 (match-beginning visible) (match-end visible) 'face face)
2116 (goto-char (match-end invisible)))))))))
2118 (defvar gnus-summary-article-menu)
2119 (defvar gnus-summary-post-menu)
2121 ;;; Saving functions.
2123 (defun gnus-article-save (save-buffer file &optional num)
2124 "Save the currently selected article."
2125 (unless gnus-save-all-headers
2126 ;; Remove headers according to `gnus-saved-headers'.
2127 (let ((gnus-visible-headers
2128 (or gnus-saved-headers gnus-visible-headers))
2129 (gnus-article-buffer save-buffer))
2131 (set-buffer save-buffer)
2132 (article-hide-headers 1 t))))
2133 (save-window-excursion
2134 (if (not gnus-default-article-saver)
2135 (error "No default saver is defined")
2136 ;; !!! Magic! The saving functions all save
2137 ;; `gnus-save-article-buffer' (or so they think), but we
2138 ;; bind that variable to our save-buffer.
2139 (set-buffer gnus-article-buffer)
2140 (let* ((gnus-save-article-buffer save-buffer)
2143 ((not gnus-prompt-before-saving) 'default)
2144 ((eq gnus-prompt-before-saving 'always) nil)
2146 (gnus-number-of-articles-to-be-saved
2147 (when (eq gnus-prompt-before-saving t)
2149 (set-buffer gnus-article-current-summary)
2150 (funcall gnus-default-article-saver filename)))))
2152 (defun gnus-read-save-file-name (prompt &optional filename
2153 function group headers variable)
2155 (funcall function group headers (symbol-value variable)))
2160 ((eq filename 'default)
2166 (let* ((split-name (gnus-get-split-value gnus-split-methods))
2169 (if (and gnus-number-of-articles-to-be-saved
2170 (> gnus-number-of-articles-to-be-saved 1))
2171 (format "these %d articles"
2172 gnus-number-of-articles-to-be-saved)
2175 ;; Let the split methods have their say.
2177 ;; No split name was found.
2180 (concat prompt " (default "
2181 (file-name-nondirectory default-name) ") ")
2182 (file-name-directory default-name)
2184 ;; A single group name is returned.
2185 ((stringp split-name)
2187 (funcall function split-name headers
2188 (symbol-value variable)))
2190 (concat prompt " (default "
2191 (file-name-nondirectory default-name) ") ")
2192 (file-name-directory default-name)
2194 ;; A single split name was found
2195 ((= 1 (length split-name))
2196 (let* ((name (expand-file-name
2197 (car split-name) gnus-article-save-directory))
2198 (dir (cond ((file-directory-p name)
2199 (file-name-as-directory name))
2200 ((file-exists-p name) name)
2201 (t gnus-article-save-directory))))
2203 (concat prompt " (default " name ") ")
2205 ;; A list of splits was found.
2207 (setq split-name (nreverse split-name))
2209 (let ((file-name-history
2210 (nconc split-name file-name-history)))
2214 (concat prompt " (`M-p' for defaults) ")
2215 gnus-article-save-directory
2217 gnus-article-save-directory)))
2218 (car (push result file-name-history)))))))
2219 ;; Create the directory.
2220 (gnus-make-directory (file-name-directory file))
2221 ;; If we have read a directory, we append the default file name.
2222 (when (file-directory-p file)
2223 (setq file (concat (file-name-as-directory file)
2224 (file-name-nondirectory default-name))))
2225 ;; Possibly translate some characters.
2226 (nnheader-translate-file-chars file)))))
2227 (gnus-make-directory (file-name-directory result))
2228 (set variable result)))
2230 (defun gnus-article-archive-name (group)
2231 "Return the first instance of an \"Archive-name\" in the current buffer."
2232 (let ((case-fold-search t))
2233 (when (re-search-forward "archive-name: *\\([^ \n\t]+\\)[ \t]*$" nil t)
2234 (nnheader-concat gnus-article-save-directory
2235 (match-string 1)))))
2237 (defun gnus-article-nndoc-name (group)
2238 "If GROUP is an nndoc group, return the name of the parent group."
2239 (when (eq (car (gnus-find-method-for-group group)) 'nndoc)
2240 (gnus-group-get-parameter group 'save-article-group)))
2242 (defun gnus-summary-save-in-rmail (&optional filename)
2243 "Append this article to Rmail file.
2244 Optional argument FILENAME specifies file name.
2245 Directory to save to is default to `gnus-article-save-directory'."
2246 (setq filename (gnus-read-save-file-name
2247 "Save %s in rmail file:" filename
2248 gnus-rmail-save-name gnus-newsgroup-name
2249 gnus-current-headers 'gnus-newsgroup-last-rmail))
2250 (gnus-eval-in-buffer-window gnus-save-article-buffer
2254 (gnus-output-to-rmail filename))))
2257 (defun gnus-summary-save-in-mail (&optional filename)
2258 "Append this article to Unix mail file.
2259 Optional argument FILENAME specifies file name.
2260 Directory to save to is default to `gnus-article-save-directory'."
2261 (setq filename (gnus-read-save-file-name
2262 "Save %s in Unix mail file:" filename
2263 gnus-mail-save-name gnus-newsgroup-name
2264 gnus-current-headers 'gnus-newsgroup-last-mail))
2265 (gnus-eval-in-buffer-window gnus-save-article-buffer
2269 (if (and (file-readable-p filename)
2270 (mail-file-babyl-p filename))
2271 (rmail-output-to-rmail-file filename t)
2272 (gnus-output-to-mail filename)))))
2275 (defun gnus-summary-save-in-file (&optional filename overwrite)
2276 "Append this article to file.
2277 Optional argument FILENAME specifies file name.
2278 Directory to save to is default to `gnus-article-save-directory'."
2279 (setq filename (gnus-read-save-file-name
2280 "Save %s in file:" filename
2281 gnus-file-save-name gnus-newsgroup-name
2282 gnus-current-headers 'gnus-newsgroup-last-file))
2283 (gnus-eval-in-buffer-window gnus-save-article-buffer
2287 (when (and overwrite
2288 (file-exists-p filename))
2289 (delete-file filename))
2290 (gnus-output-to-file filename))))
2293 (defun gnus-summary-write-to-file (&optional filename)
2294 "Write this article to a file.
2295 Optional argument FILENAME specifies file name.
2296 The directory to save in defaults to `gnus-article-save-directory'."
2297 (gnus-summary-save-in-file nil t))
2299 (defun gnus-summary-save-body-in-file (&optional filename)
2300 "Append this article body to a file.
2301 Optional argument FILENAME specifies file name.
2302 The directory to save in defaults to `gnus-article-save-directory'."
2303 (setq filename (gnus-read-save-file-name
2304 "Save %s body in file:" filename
2305 gnus-file-save-name gnus-newsgroup-name
2306 gnus-current-headers 'gnus-newsgroup-last-file))
2307 (gnus-eval-in-buffer-window gnus-save-article-buffer
2311 (when (article-goto-body)
2312 (narrow-to-region (point) (point-max)))
2313 (gnus-output-to-file filename))))
2316 (defun gnus-summary-save-in-pipe (&optional command)
2317 "Pipe this article to subprocess."
2319 (cond ((and (eq command 'default)
2320 gnus-last-shell-command)
2321 gnus-last-shell-command)
2325 "Shell command on %s: "
2326 (if (and gnus-number-of-articles-to-be-saved
2327 (> gnus-number-of-articles-to-be-saved 1))
2328 (format "these %d articles"
2329 gnus-number-of-articles-to-be-saved)
2331 gnus-last-shell-command))))
2332 (when (string-equal command "")
2333 (setq command gnus-last-shell-command))
2334 (gnus-eval-in-buffer-window gnus-article-buffer
2337 (shell-command-on-region (point-min) (point-max) command nil)))
2338 (setq gnus-last-shell-command command))
2340 ;;; Article file names when saving.
2342 (defun gnus-capitalize-newsgroup (newsgroup)
2343 "Capitalize NEWSGROUP name."
2344 (when (not (zerop (length newsgroup)))
2345 (concat (char-to-string (upcase (aref newsgroup 0)))
2346 (substring newsgroup 1))))
2348 (defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
2349 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2350 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
2351 Otherwise, it is like ~/News/news/group/num."
2354 (concat (if (gnus-use-long-file-name 'not-save)
2355 (gnus-capitalize-newsgroup newsgroup)
2356 (gnus-newsgroup-directory-form newsgroup))
2357 "/" (int-to-string (mail-header-number headers)))
2358 gnus-article-save-directory)))
2360 (string-equal (file-name-directory default)
2361 (file-name-directory last-file))
2362 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
2364 (or last-file default))))
2366 (defun gnus-numeric-save-name (newsgroup headers &optional last-file)
2367 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2368 If variable `gnus-use-long-file-name' is non-nil, it is
2369 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
2372 (concat (if (gnus-use-long-file-name 'not-save)
2374 (gnus-newsgroup-directory-form newsgroup))
2375 "/" (int-to-string (mail-header-number headers)))
2376 gnus-article-save-directory)))
2378 (string-equal (file-name-directory default)
2379 (file-name-directory last-file))
2380 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
2382 (or last-file default))))
2384 (defun gnus-Plain-save-name (newsgroup headers &optional last-file)
2385 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2386 If variable `gnus-use-long-file-name' is non-nil, it is
2387 ~/News/News.group. Otherwise, it is like ~/News/news/group/news."
2390 (if (gnus-use-long-file-name 'not-save)
2391 (gnus-capitalize-newsgroup newsgroup)
2392 (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
2393 gnus-article-save-directory)))
2395 (defun gnus-plain-save-name (newsgroup headers &optional last-file)
2396 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2397 If variable `gnus-use-long-file-name' is non-nil, it is
2398 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
2401 (if (gnus-use-long-file-name 'not-save)
2403 (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
2404 gnus-article-save-directory)))
2411 (setq afunc (car func)
2414 gfunc (intern (format "gnus-%s" func))))
2416 (if (not (fboundp afunc))
2418 `(lambda (&optional interactive &rest args)
2419 ,(documentation afunc t)
2420 (interactive (list t))
2422 (set-buffer gnus-article-buffer)
2424 (call-interactively ',afunc)
2425 (apply ',afunc args))))))))
2426 '(article-hide-headers
2427 article-hide-boring-headers
2428 article-toggle-headers
2429 article-treat-overstrike
2430 article-fill-long-lines
2431 article-capitalize-sentences
2433 article-display-x-face
2434 article-de-quoted-unreadable
2436 article-strip-banner
2438 article-hide-signature
2439 article-strip-headers-in-body
2440 article-remove-trailing-blank-lines
2441 article-strip-leading-blank-lines
2442 article-strip-multiple-blank-lines
2443 article-strip-leading-space
2444 article-strip-trailing-space
2445 article-strip-blank-lines
2446 article-strip-all-blank-lines
2448 article-date-iso8601
2449 article-date-original
2451 article-decode-mime-words
2452 article-decode-charset
2453 article-decode-encoded-words
2457 article-treat-dumbquotes
2458 article-normalize-headers
2459 (article-show-all . gnus-article-show-all-headers))))
2462 ;;; Gnus article mode
2465 (put 'gnus-article-mode 'mode-class 'special)
2467 (gnus-define-keys gnus-article-mode-map
2468 " " gnus-article-goto-next-page
2469 "\177" gnus-article-goto-prev-page
2470 [delete] gnus-article-goto-prev-page
2471 [backspace] gnus-article-goto-prev-page
2472 "\C-c^" gnus-article-refer-article
2473 "h" gnus-article-show-summary
2474 "s" gnus-article-show-summary
2475 "\C-c\C-m" gnus-article-mail
2476 "?" gnus-article-describe-briefly
2477 gnus-mouse-2 gnus-article-push-button
2478 "\r" gnus-article-press-button
2479 "\t" gnus-article-next-button
2480 "\M-\t" gnus-article-prev-button
2481 "e" gnus-article-edit
2482 "<" beginning-of-buffer
2484 "\C-c\C-i" gnus-info-find-node
2487 "\C-d" gnus-article-read-summary-keys
2488 "\M-*" gnus-article-read-summary-keys
2489 "\M-#" gnus-article-read-summary-keys
2490 "\M-^" gnus-article-read-summary-keys
2491 "\M-g" gnus-article-read-summary-keys)
2493 ;; Define almost undefined keys to `gnus-article-read-summary-keys'.
2496 (unless (lookup-key gnus-article-mode-map key)
2497 (define-key gnus-article-mode-map key
2498 'gnus-article-read-summary-keys)))
2503 (let ((key (car elt)))
2504 (and (> (length key) 0)
2505 (not (eq 'menu-bar (aref key 0)))
2506 (symbolp (lookup-key gnus-summary-mode-map key))
2508 (accessible-keymaps gnus-summary-mode-map))
2512 (push (char-to-string c) keys)
2516 (defun gnus-article-make-menu-bar ()
2517 (gnus-turn-off-edit-menu 'article)
2518 (unless (boundp 'gnus-article-article-menu)
2520 gnus-article-article-menu gnus-article-mode-map ""
2522 ["Scroll forwards" gnus-article-goto-next-page t]
2523 ["Scroll backwards" gnus-article-goto-prev-page t]
2524 ["Show summary" gnus-article-show-summary t]
2525 ["Fetch Message-ID at point" gnus-article-refer-article t]
2526 ["Mail to address at point" gnus-article-mail t]
2527 ["Send a bug report" gnus-bug t]))
2530 gnus-article-treatment-menu gnus-article-mode-map ""
2532 ["Hide headers" gnus-article-toggle-headers t]
2533 ["Hide signature" gnus-article-hide-signature t]
2534 ["Hide citation" gnus-article-hide-citation t]
2535 ["Treat overstrike" gnus-article-treat-overstrike t]
2536 ["Remove carriage return" gnus-article-remove-cr t]))
2538 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
2540 (when (boundp 'gnus-summary-post-menu)
2541 (define-key gnus-article-mode-map [menu-bar post]
2542 (cons "Post" gnus-summary-post-menu)))
2544 (gnus-run-hooks 'gnus-article-menu-hook)))
2546 (defun gnus-article-mode ()
2547 "Major mode for displaying an article.
2549 All normal editing commands are switched off.
2551 The following commands are available in addition to all summary mode
2553 \\<gnus-article-mode-map>
2554 \\[gnus-article-next-page]\t Scroll the article one page forwards
2555 \\[gnus-article-prev-page]\t Scroll the article one page backwards
2556 \\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
2557 \\[gnus-article-show-summary]\t Display the summary buffer
2558 \\[gnus-article-mail]\t Send a reply to the address near point
2559 \\[gnus-article-describe-briefly]\t Describe the current mode briefly
2560 \\[gnus-info-find-node]\t Go to the Gnus info node"
2562 (when (gnus-visual-p 'article-menu 'menu)
2563 (gnus-article-make-menu-bar))
2564 (gnus-simplify-mode-line)
2565 (setq mode-name "Article")
2566 (setq major-mode 'gnus-article-mode)
2567 (make-local-variable 'minor-mode-alist)
2568 (unless (assq 'gnus-show-mime minor-mode-alist)
2569 (push (list 'gnus-show-mime " MIME") minor-mode-alist))
2570 (use-local-map gnus-article-mode-map)
2571 (gnus-update-format-specifications nil 'article-mode)
2572 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
2573 (make-local-variable 'gnus-page-broken)
2574 (make-local-variable 'gnus-button-marker-list)
2575 (make-local-variable 'gnus-article-current-summary)
2576 (make-local-variable 'gnus-article-mime-handles)
2577 (make-local-variable 'gnus-article-decoded-p)
2578 (make-local-variable 'gnus-article-mime-handle-alist)
2579 (make-local-variable 'gnus-article-washed-types)
2580 (gnus-set-default-directory)
2581 (buffer-disable-undo)
2582 (setq buffer-read-only t)
2583 (set-syntax-table gnus-article-mode-syntax-table)
2584 (gnus-run-hooks 'gnus-article-mode-hook))
2586 (defun gnus-article-setup-buffer ()
2587 "Initialize the article buffer."
2588 (let* ((name (if gnus-single-article-buffer "*Article*"
2589 (concat "*Article " gnus-newsgroup-name "*")))
2591 (progn (string-match "\\*Article" name)
2592 (concat " *Original Article"
2593 (substring name (match-end 0))))))
2594 (setq gnus-article-buffer name)
2595 (setq gnus-original-article-buffer original)
2596 (setq gnus-article-mime-handle-alist nil)
2597 ;; This might be a variable local to the summary buffer.
2598 (unless gnus-single-article-buffer
2600 (set-buffer gnus-summary-buffer)
2601 (setq gnus-article-buffer name)
2602 (setq gnus-original-article-buffer original)
2603 (gnus-set-global-variables)))
2604 ;; Init original article buffer.
2606 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
2607 (setq major-mode 'gnus-original-article-mode)
2608 (make-local-variable 'gnus-original-article))
2609 (if (get-buffer name)
2612 (buffer-disable-undo)
2613 (setq buffer-read-only t)
2614 (unless (eq major-mode 'gnus-article-mode)
2615 (gnus-article-mode))
2618 (set-buffer (gnus-get-buffer-create name))
2620 (make-local-variable 'gnus-summary-buffer)
2621 (gnus-summary-set-local-parameters gnus-newsgroup-name)
2622 (current-buffer)))))
2624 ;; Set article window start at LINE, where LINE is the number of lines
2625 ;; from the head of the article.
2626 (defun gnus-article-set-window-start (&optional line)
2628 (get-buffer-window gnus-article-buffer t)
2630 (set-buffer gnus-article-buffer)
2631 (goto-char (point-min))
2634 (gnus-message 6 "Moved to bookmark")
2635 (search-forward "\n\n" nil t)
2639 ;;; @@ article filters
2642 (defun gnus-article-display-mime-message ()
2643 "Article display method for MIME message."
2644 ;; called from `gnus-original-article-buffer'.
2645 (let (charset all-headers)
2646 (with-current-buffer gnus-summary-buffer
2647 (setq charset default-mime-charset
2648 all-headers gnus-have-all-headers))
2649 (make-local-variable 'default-mime-charset)
2650 (setq default-mime-charset charset)
2651 (with-current-buffer (get-buffer-create gnus-article-buffer)
2652 (make-local-variable 'default-mime-charset)
2653 (setq default-mime-charset charset))
2654 (mime-display-message mime-message-structure
2655 gnus-article-buffer nil gnus-article-mode-map)
2657 (gnus-article-hide-headers nil -1))
2659 ;; `mime-display-message' changes current buffer to `gnus-article-buffer'.
2660 (make-local-variable 'mime-button-mother-dispatcher)
2661 (setq mime-button-mother-dispatcher
2662 (function gnus-article-push-button))
2663 (run-hooks 'gnus-mime-article-prepare-hook))
2665 (defun gnus-article-display-traditional-message ()
2666 "Article display method for traditional message."
2667 (set-buffer gnus-article-buffer)
2668 (let (buffer-read-only)
2670 (insert-buffer-substring gnus-original-article-buffer)))
2672 (defun gnus-article-make-full-mail-header (&optional number charset)
2673 "Create a new mail header structure in a raw article buffer."
2674 (unless (and number charset)
2675 (save-current-buffer
2676 (set-buffer gnus-summary-buffer)
2678 (setq number (or (cdr gnus-article-current) 0)))
2680 (setq charset (or default-mime-charset 'x-ctext)))))
2681 (goto-char (point-min))
2682 (let ((header-end (if (search-forward "\n\n" nil t)
2684 (goto-char (point-max))))
2685 (chars (- (point-max) (point)))
2686 (lines (count-lines (point) (point-max)))
2687 (default-mime-charset charset)
2689 (narrow-to-region (point-min) header-end)
2690 (setq xref (std11-fetch-field "xref"))
2692 (make-full-mail-header
2694 (std11-fetch-field "subject")
2695 (std11-fetch-field "from")
2696 (std11-fetch-field "date")
2697 (std11-fetch-field "message-id")
2698 (std11-fetch-field "references")
2701 (when xref (concat "Xref: " xref)))
2704 (defun gnus-article-prepare (article &optional all-headers header)
2705 "Prepare ARTICLE in article mode buffer.
2706 ARTICLE should either be an article number or a Message-ID.
2707 If ARTICLE is an id, HEADER should be the article headers.
2708 If ALL-HEADERS is non-nil, no headers are hidden."
2710 ;; Make sure we start in a summary buffer.
2711 (unless (eq major-mode 'gnus-summary-mode)
2712 (set-buffer gnus-summary-buffer))
2713 (setq gnus-summary-buffer (current-buffer))
2714 (let* ((gnus-article (if header (mail-header-number header) article))
2715 (summary-buffer (current-buffer))
2716 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
2717 (group gnus-newsgroup-name)
2720 (gnus-article-setup-buffer)
2721 (set-buffer gnus-original-article-buffer)
2722 ;; Deactivate active regions.
2723 (when (and (boundp 'transient-mark-mode)
2724 transient-mark-mode)
2725 (setq mark-active nil))
2726 (if (not (setq result (let ((buffer-read-only nil))
2727 (gnus-request-article-this-buffer
2729 ;; There is no such article.
2731 (when (and (numberp article)
2732 (not (memq article gnus-newsgroup-sparse)))
2733 (setq gnus-article-current
2734 (cons gnus-newsgroup-name article))
2735 (set-buffer gnus-summary-buffer)
2736 (setq gnus-current-article article)
2737 (if (eq (gnus-article-mark article) gnus-undownloaded-mark)
2739 (gnus-summary-set-agent-mark article)
2740 (message "Message marked for downloading"))
2741 (gnus-summary-mark-article article gnus-canceled-mark)
2742 (unless (memq article gnus-newsgroup-sparse)
2744 "No such article (may have expired or been canceled)")))))
2745 (if (or (eq result 'pseudo)
2746 (eq result 'nneething))
2749 (set-buffer summary-buffer)
2750 (push article gnus-newsgroup-history)
2751 (setq gnus-last-article gnus-current-article
2752 gnus-current-article 0
2753 gnus-current-headers nil
2754 gnus-article-current nil)
2755 (if (eq result 'nneething)
2756 (gnus-configure-windows 'summary)
2757 (gnus-configure-windows 'article))
2758 (gnus-set-global-variables))
2759 (let ((gnus-article-mime-handle-alist-1
2760 gnus-article-mime-handle-alist))
2761 (gnus-set-mode-line 'article)))
2762 ;; The result from the `request' was an actual article -
2763 ;; or at least some text that is now displayed in the
2765 (when (and (numberp article)
2766 (not (eq article gnus-current-article)))
2767 ;; Seems like a new article has been selected.
2768 ;; `gnus-current-article' must be an article number.
2770 (set-buffer summary-buffer)
2771 (push article gnus-newsgroup-history)
2772 (setq gnus-last-article gnus-current-article
2773 gnus-current-article article
2774 gnus-current-headers
2775 (gnus-summary-article-header gnus-current-article)
2776 gnus-article-current
2777 (cons gnus-newsgroup-name gnus-current-article))
2778 (unless (vectorp gnus-current-headers)
2779 (setq gnus-current-headers nil))
2780 (gnus-summary-goto-subject gnus-current-article)
2781 (when (gnus-summary-show-thread)
2782 ;; If the summary buffer really was folded, the
2783 ;; previous goto may not actually have gone to
2784 ;; the right article, but the thread root instead.
2786 (gnus-summary-goto-subject gnus-current-article))
2787 (gnus-run-hooks 'gnus-mark-article-hook)
2788 (gnus-set-mode-line 'summary)
2789 (when (gnus-visual-p 'article-highlight 'highlight)
2790 (gnus-run-hooks 'gnus-visual-mark-article-hook))
2791 ;; Set the global newsgroup variables here.
2792 (gnus-set-global-variables)
2793 (setq gnus-have-all-headers
2794 (or all-headers gnus-show-all-headers))))
2795 (when (or (numberp article)
2797 (gnus-article-prepare-display)
2799 (goto-char (point-min))
2800 (setq gnus-page-broken
2801 (when gnus-break-pages
2802 (gnus-narrow-to-page)
2804 (let ((gnus-article-mime-handle-alist-1
2805 gnus-article-mime-handle-alist))
2806 (gnus-set-mode-line 'article))
2808 (set-window-point (get-buffer-window (current-buffer)) (point))
2809 (gnus-configure-windows 'article)
2812 (defun gnus-article-prepare-mime-display (&optional number)
2813 (goto-char (point-min))
2814 (when (re-search-forward "^[^\t ]+:" nil t)
2815 (goto-char (match-beginning 0)))
2816 (let* ((entity (if (eq 1 (point-min))
2817 (get-text-property 1 'mime-view-entity)
2818 (get-text-property (point) 'mime-view-entity)))
2819 (number (or number 0))
2822 (narrow-to-region (point)
2823 (if (search-forward "\n\n" nil t)
2826 (gnus-treat-article 'head)
2827 (put-text-property (point-min) (point-max) 'article-treated-header t)
2828 (goto-char (point-max)))
2829 (while (and (not (eobp))
2831 (setq next (next-single-property-change (point)
2832 'mime-view-entity)))
2833 (setq type (mime-entity-content-type entity)
2834 type (format "%s/%s"
2835 (mime-content-type-primary-type type)
2836 (mime-content-type-subtype type)))
2837 (if (string-equal type "message/rfc822")
2839 (narrow-to-region (point) (point-max))
2840 (gnus-article-prepare-mime-display number)
2841 (goto-char (point-max)))
2842 (setq ids (length (mime-entity-node-id entity))
2843 entity (get-text-property next 'mime-view-entity)
2846 (narrow-to-region (point) next)
2847 (if (or (null entity)
2848 (< (length (mime-entity-node-id entity)) ids))
2849 (gnus-treat-article 'last number number type)
2850 (gnus-treat-article nil number nil type))
2851 (goto-char (point-max)))))
2854 (narrow-to-region (point) (point-max))
2857 (setq type (mime-entity-content-type entity)
2858 type (format "%s/%s"
2859 (mime-content-type-primary-type type)
2860 (mime-content-type-subtype type)))
2861 (if (string-equal type "message/rfc822")
2862 (gnus-article-prepare-mime-display number)
2864 (gnus-treat-article 'last number number type)))
2865 (gnus-treat-article t))))))
2868 (defun gnus-article-prepare-display ()
2869 "Make the current buffer look like a nice article."
2870 (gnus-run-hooks 'gnus-tmp-internal-hook)
2871 (gnus-run-hooks 'gnus-article-prepare-hook)
2873 (let (mime-display-header-hook)
2874 (funcall (if gnus-show-mime
2876 (setq mime-message-structure gnus-current-headers)
2877 gnus-article-display-method-for-mime)
2878 gnus-article-display-method-for-traditional)))
2879 ;; Associate this article with the current summary buffer.
2880 (setq gnus-article-current-summary gnus-summary-buffer)
2881 ;; Call the treatment functions.
2882 (let ((inhibit-read-only t)
2887 (gnus-article-prepare-mime-display)
2888 (std11-narrow-to-header)
2889 (gnus-treat-article 'head)
2890 (put-text-property (point-min) (point-max) 'article-treated-header t)
2891 (goto-char (point-max))
2893 (narrow-to-region (point) (point-max))
2894 (gnus-treat-article t))
2895 (put-text-property (point-min) (point-max) 'read-only nil)))
2896 ;; Perform the article display hooks. Incidentally, this hook is
2897 ;; an obsolete variable by now.
2898 (gnus-run-hooks 'gnus-article-display-hook))
2900 (defun gnus-article-decode-message-body-as-default-mime-charset ()
2901 "Decode the message body as `default-mime-charset'. The buffer is
2902 expected to be narrowed to the article body."
2903 (decode-mime-charset-region (point-min) (point-max)
2904 (with-current-buffer gnus-summary-buffer
2905 default-mime-charset)))
2907 (autoload 'x-face-mule-x-face-decode-message-header "x-face-mule")
2909 (defun gnus-article-display-x-face-with-x-face-mule (&rest args)
2910 "Decode and show X-Face with the function
2911 `x-face-mule-x-face-decode-message-header'. The buffer is expected to be
2912 narrowed to just the headers of the article."
2913 (when (featurep 'xemacs)
2914 (error "`%s' won't work under XEmacs."
2915 'gnus-article-display-x-face-with-x-face-mule))
2918 (x-face-mule-x-face-decode-message-header)
2920 (if (featurep 'x-face-mule)
2921 "Please install x-face-mule 0.24 or later."
2925 ;;; Gnus MIME viewing functions
2928 (defvar gnus-mime-button-line-format "%{%([%p. %d%T]%)%}%e\n"
2929 "The following specs can be used:
2931 %T MIME type, along with additional info
2932 %n The `name' parameter
2933 %d The description, if any
2934 %l The length of the encoded part
2935 %p The part identifier number
2936 %e Dots if the part isn't displayed")
2938 (defvar gnus-mime-button-line-format-alist
2939 '((?t gnus-tmp-type ?s)
2940 (?T gnus-tmp-type-long ?s)
2941 (?n gnus-tmp-name ?s)
2942 (?d gnus-tmp-description ?s)
2944 (?l gnus-tmp-length ?d)
2945 (?e gnus-tmp-dots ?s)))
2947 (defvar gnus-mime-button-commands
2948 '((gnus-article-press-button "\r" "Toggle Display")
2949 (gnus-mime-view-part "v" "View Interactively...")
2950 (gnus-mime-save-part "o" "Save...")
2951 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
2952 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
2953 (gnus-mime-internalize-part "E" "View Internally")
2954 (gnus-mime-externalize-part "e" "View Externally")
2955 (gnus-mime-pipe-part "|" "Pipe To Command...")))
2957 (defun gnus-article-mime-part-status ()
2958 (if gnus-article-mime-handle-alist-1
2959 (format " (%d parts)" (length gnus-article-mime-handle-alist-1))
2962 (defvar gnus-mime-button-map nil)
2963 (unless gnus-mime-button-map
2964 (setq gnus-mime-button-map (make-sparse-keymap))
2965 (set-keymap-parent gnus-mime-button-map gnus-article-mode-map)
2966 (define-key gnus-mime-button-map gnus-mouse-2 'gnus-article-push-button)
2967 (define-key gnus-mime-button-map gnus-down-mouse-3 'gnus-mime-button-menu)
2969 (define-key gnus-mime-button-map (cadr c) (car c)))
2970 gnus-mime-button-commands))
2972 (defun gnus-mime-button-menu (event)
2973 "Construct a context-sensitive menu of MIME commands."
2976 (let ((pos (event-start event)))
2977 (set-buffer (window-buffer (posn-window pos)))
2978 (goto-char (posn-point pos))
2979 (gnus-article-check-buffer)
2980 (let ((response (x-popup-menu
2982 ("" ,@(mapcar (lambda (c)
2983 (cons (caddr c) (car c)))
2984 gnus-mime-button-commands))))))
2986 (funcall response))))))
2988 (defun gnus-mime-view-all-parts (&optional handles)
2989 "View all the MIME parts."
2991 (save-current-buffer
2992 (set-buffer gnus-article-buffer)
2993 (let ((handles (or handles gnus-article-mime-handles))
2994 (mail-parse-charset gnus-newsgroup-charset))
2995 (if (stringp (car handles))
2996 (gnus-mime-view-all-parts (cdr handles))
2997 (mapcar 'mm-display-part handles)))))
2999 (defun gnus-mime-save-part ()
3000 "Save the MIME part under point."
3002 (gnus-article-check-buffer)
3003 (let ((data (get-text-property (point) 'gnus-data)))
3004 (mm-save-part data)))
3006 (defun gnus-mime-pipe-part ()
3007 "Pipe the MIME part under point to a process."
3009 (gnus-article-check-buffer)
3010 (let ((data (get-text-property (point) 'gnus-data)))
3011 (mm-pipe-part data)))
3013 (defun gnus-mime-view-part ()
3014 "Interactively choose a view method for the MIME part under point."
3016 (gnus-article-check-buffer)
3017 (let ((data (get-text-property (point) 'gnus-data)))
3018 (mm-interactively-view-part data)))
3020 (defun gnus-mime-copy-part (&optional handle)
3021 "Put the the MIME part under point into a new buffer."
3023 (gnus-article-check-buffer)
3024 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3025 (contents (mm-get-part handle))|
3026 (base (file-name-nondirectory
3028 (mail-content-type-get (mm-handle-type handle) 'name)
3029 (mail-content-type-get (mm-handle-type handle)
3032 (buffer (generate-new-buffer base)))
3033 (switch-to-buffer buffer)
3035 ;; We do it this way to make `normal-mode' set the appropriate mode.
3038 (setq buffer-file-name (expand-file-name base))
3040 (setq buffer-file-name nil))
3041 (goto-char (point-min))))
3043 (defun gnus-mime-inline-part (&optional handle)
3044 "Insert the MIME part under point into the current buffer."
3046 (gnus-article-check-buffer)
3047 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3051 (if (mm-handle-undisplayer handle)
3052 (mm-remove-part handle)
3053 (setq contents (mm-get-part handle))
3055 (mm-insert-inline handle contents)
3058 (defun gnus-mime-externalize-part (&optional handle)
3059 "View the MIME part under point with an external viewer."
3061 (gnus-article-check-buffer)
3062 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3063 (mm-user-display-methods nil)
3064 (mm-all-images-fit t)
3065 (mail-parse-charset gnus-newsgroup-charset))
3066 (if (mm-handle-undisplayer handle)
3067 (mm-remove-part handle)
3068 (mm-display-part handle))))
3070 (defun gnus-mime-internalize-part (&optional handle)
3071 "View the MIME part under point with an internal viewer."
3073 (gnus-article-check-buffer)
3074 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3075 (mm-user-display-methods '((".*" . inline)))
3076 (mm-all-images-fit t)
3077 (mail-parse-charset gnus-newsgroup-charset))
3078 (if (mm-handle-undisplayer handle)
3079 (mm-remove-part handle)
3080 (mm-display-part handle))))
3082 (defun gnus-article-part-wrapper (n function)
3083 (save-current-buffer
3084 (set-buffer gnus-article-buffer)
3085 (when (> n (length gnus-article-mime-handle-alist))
3086 (error "No such part"))
3087 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
3088 (funcall function handle))))
3090 (defun gnus-article-pipe-part (n)
3091 "Pipe MIME part N, which is the numerical prefix."
3093 (gnus-article-part-wrapper n 'mm-pipe-part))
3095 (defun gnus-article-save-part (n)
3096 "Save MIME part N, which is the numerical prefix."
3098 (gnus-article-part-wrapper n 'mm-save-part))
3100 (defun gnus-article-interactively-view-part (n)
3101 "View MIME part N interactively, which is the numerical prefix."
3103 (gnus-article-part-wrapper n 'mm-interactively-view-part))
3105 (defun gnus-article-copy-part (n)
3106 "Copy MIME part N, which is the numerical prefix."
3108 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
3110 (defun gnus-article-externalize-part (n)
3111 "View MIME part N externally, which is the numerical prefix."
3113 (gnus-article-part-wrapper n 'gnus-mime-externalize-part))
3115 (defun gnus-article-inline-part (n)
3116 "Inline MIME part N, which is the numerical prefix."
3118 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
3120 (defun gnus-article-view-part (n)
3121 "View MIME part N, which is the numerical prefix."
3123 (save-current-buffer
3124 (set-buffer gnus-article-buffer)
3125 (when (> n (length gnus-article-mime-handle-alist))
3126 (error "No such part"))
3127 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
3128 (when (gnus-article-goto-part n)
3129 (if (equal (car handle) "multipart/alternative")
3130 (gnus-article-press-button)
3131 (when (eq (gnus-mm-display-part handle) 'internal)
3132 (gnus-set-window-start)))))))
3134 (defun gnus-mm-display-part (handle)
3135 "Display HANDLE and fix MIME button."
3136 (let ((id (get-text-property (point) 'gnus-part))
3141 (let ((window (selected-window))
3142 (mail-parse-charset gnus-newsgroup-charset))
3145 (let ((win (get-buffer-window (current-buffer) t))
3148 (select-window win))
3151 (if (mm-handle-displayed-p handle)
3152 ;; This will remove the part.
3153 (mm-display-part handle)
3155 (narrow-to-region (point) (1+ (point)))
3156 (mm-display-part handle)
3157 ;; We narrow to the part itself and
3158 ;; then call the treatment functions.
3159 (goto-char (point-min))
3161 (narrow-to-region (point) (point-max))
3164 (1- (length gnus-article-mime-handles))
3165 (car (mm-handle-type handle))))))
3166 (select-window window))))
3168 (delete-region (gnus-point-at-bol) (progn (forward-line 1) (point)))
3169 (gnus-insert-mime-button
3170 handle id (list (mm-handle-displayed-p handle)))
3171 (goto-char point))))
3173 (defun gnus-article-goto-part (n)
3174 "Go to MIME part N."
3175 (let ((point (text-property-any (point-min) (point-max) 'gnus-part n)))
3177 (goto-char point))))
3179 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
3180 (let ((gnus-tmp-name
3181 (or (mail-content-type-get (mm-handle-type handle)
3183 (mail-content-type-get (mm-handle-disposition handle)
3186 (gnus-tmp-type (car (mm-handle-type handle)))
3187 (gnus-tmp-description
3188 (mail-decode-encoded-word-string (or (mm-handle-description handle)
3191 (if (if displayed (car displayed)
3192 (mm-handle-displayed-p handle))
3194 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
3196 gnus-tmp-type-long b e)
3197 (when (string-match ".*/" gnus-tmp-name)
3198 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
3199 (setq gnus-tmp-type-long (concat gnus-tmp-type
3200 (and (not (equal gnus-tmp-name ""))
3201 (concat "; " gnus-tmp-name))))
3202 (or (equal gnus-tmp-description "")
3203 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
3208 gnus-mime-button-line-format gnus-mime-button-line-format-alist
3209 `(local-map ,gnus-mime-button-map
3210 keymap ,gnus-mime-button-map
3211 gnus-callback gnus-mm-display-part
3212 gnus-part ,gnus-tmp-id
3213 article-type annotation
3216 (widget-convert-button 'link b e
3218 :action 'gnus-widget-press-button
3219 :button-keymap gnus-mime-button-map
3222 ;; Needed to properly clear the message
3223 ;; due to a bug in wid-edit
3224 (setq help-echo-owns-message t)
3226 "Click to %s the MIME part; %s for more options"
3227 (if (mm-handle-displayed-p
3228 (widget-get widget :mime-handle))
3230 (if gnus-xemacs "button3" "mouse-3"))))))
3232 (defun gnus-widget-press-button (elems el)
3233 (goto-char (widget-get elems :from))
3234 (gnus-article-press-button))
3236 (defvar gnus-displaying-mime nil)
3238 (defun gnus-display-mime (&optional ihandles)
3239 "Display the MIME parts."
3241 (save-selected-window
3242 (let ((window (get-buffer-window gnus-article-buffer))
3245 (select-window window)
3246 ;; We have to do this since selecting the window
3247 ;; may change the point. So we set the window point.
3248 (set-window-point window point)))
3249 (let* ((handles (or ihandles (mm-dissect-buffer) (mm-uu-dissect)))
3250 buffer-read-only handle name type b e display)
3251 (when (and (not ihandles)
3252 (not gnus-displaying-mime))
3253 ;; Top-level call; we clean up.
3254 (mm-destroy-parts gnus-article-mime-handles)
3255 (setq gnus-article-mime-handles handles
3256 gnus-article-mime-handle-alist nil)
3257 ;; We allow users to glean info from the handles.
3258 (when gnus-article-mime-part-function
3259 (gnus-mime-part-function handles)))
3261 (or (not (stringp (car handles)))
3264 (when (and (not ihandles)
3265 (not gnus-displaying-mime))
3266 ;; Clean up for mime parts.
3268 (delete-region (point) (point-max)))
3269 (let ((gnus-displaying-mime t))
3270 (gnus-mime-display-part handles)))
3273 (narrow-to-region (point) (point-max))
3274 (gnus-treat-article nil 1 1)
3276 ;; Highlight the headers.
3280 (narrow-to-region (point-min) (point))
3281 (gnus-treat-article 'head)))))))
3283 (defvar gnus-mime-display-multipart-as-mixed nil)
3285 (defun gnus-mime-display-part (handle)
3288 ((not (stringp (car handle)))
3289 (gnus-mime-display-single handle))
3290 ;; User-defined multipart
3291 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
3292 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
3294 ;; multipart/alternative
3295 ((and (equal (car handle) "multipart/alternative")
3296 (not gnus-mime-display-multipart-as-mixed))
3297 (let ((id (1+ (length gnus-article-mime-handle-alist))))
3298 (push (cons id handle) gnus-article-mime-handle-alist)
3299 (gnus-mime-display-alternative (cdr handle) nil nil id)))
3300 ;; multipart/related
3301 ((and (equal (car handle) "multipart/related")
3302 (not gnus-mime-display-multipart-as-mixed))
3303 ;;;!!!We should find the start part, but we just default
3304 ;;;!!!to the first part.
3305 (gnus-mime-display-part (cadr handle)))
3306 ;; Other multiparts are handled like multipart/mixed.
3308 (gnus-mime-display-mixed (cdr handle)))))
3310 (defun gnus-mime-part-function (handles)
3311 (if (stringp (car handles))
3312 (mapcar 'gnus-mime-part-function (cdr handles))
3313 (funcall gnus-article-mime-part-function handles)))
3315 (defun gnus-mime-display-mixed (handles)
3316 (mapcar 'gnus-mime-display-part handles))
3318 (defun gnus-mime-display-single (handle)
3319 (let ((type (car (mm-handle-type handle)))
3320 (ignored gnus-ignored-mime-types)
3327 (when (string-match (pop ignored) type)
3328 (throw 'ignored nil)))
3329 (if (and (setq not-attachment
3330 (or (not (mm-handle-disposition handle))
3331 (equal (car (mm-handle-disposition handle))
3333 (mm-attachment-override-p type)))
3334 (mm-automatic-display-p type)
3335 (or (mm-inlinable-part-p type)
3336 (mm-automatic-external-display-p type)))
3338 (when (equal (car (split-string type "/"))
3341 (let ((id (1+ (length gnus-article-mime-handle-alist))))
3342 (push (cons id handle) gnus-article-mime-handle-alist)
3343 (when (or (not display)
3344 (not (gnus-unbuttonized-mime-type-p type)))
3345 (gnus-article-insert-newline)
3346 (gnus-insert-mime-button
3347 handle id (list (or display (and not-attachment text))))
3348 (gnus-article-insert-newline)
3349 (gnus-article-insert-newline)
3351 (let ((beg (point)))
3356 (let ((mail-parse-charset gnus-newsgroup-charset))
3357 (mm-display-part handle t))
3358 (goto-char (point-max)))
3359 ((and text not-attachment)
3362 (gnus-article-insert-newline)
3363 (mm-insert-inline handle (mm-get-part handle))
3364 (goto-char (point-max))))
3368 (narrow-to-region beg (point))
3370 nil (length gnus-article-mime-handle-alist)
3371 (1- (length gnus-article-mime-handles))
3372 (car (mm-handle-type handle))))))))))
3374 (defun gnus-unbuttonized-mime-type-p (type)
3375 "Say whether TYPE is to be unbuttonized."
3376 (unless gnus-inhibit-mime-unbuttonizing
3378 (let ((types gnus-unbuttonized-mime-types))
3380 (when (string-match (pop types) type)
3381 (throw 'found t)))))))
3383 (defun gnus-article-insert-newline ()
3384 "Insert a newline, but mark it as undeletable."
3385 (gnus-put-text-property
3386 (point) (progn (insert "\n") (point)) 'gnus-undeletable t))
3388 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
3389 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
3392 handle buffer-read-only from props begend not-pref)
3393 (save-window-excursion
3396 (narrow-to-region (car ibegend)
3399 (goto-char (car ibegend))
3402 (delete-region (point-min) (point-max))
3403 (mm-remove-parts handles))
3404 (setq begend (list (point-marker)))
3406 (unless (setq not-pref (cadr (member preferred ihandles)))
3407 (setq not-pref (car ihandles)))
3409 (not (gnus-unbuttonized-mime-type-p
3410 "multipart/alternative")))
3411 (gnus-add-text-properties
3414 (insert (format "%d. " id))
3418 (unless ,(not ibegend)
3419 (setq gnus-article-mime-handle-alist
3420 ',gnus-article-mime-handle-alist))
3421 (gnus-mime-display-alternative
3422 ',ihandles ',not-pref ',begend ,id))
3423 local-map ,gnus-mime-button-map
3424 ,gnus-mouse-face-prop ,gnus-article-mouse-face
3425 face ,gnus-article-button-face
3426 keymap ,gnus-mime-button-map
3429 (widget-convert-button 'link from (point)
3430 :action 'gnus-widget-press-button
3431 :button-keymap gnus-widget-button-keymap)
3433 (while (setq handle (pop handles))
3434 (gnus-add-text-properties
3437 (insert (format "(%c) %-18s"
3438 (if (equal handle preferred) ?* ? )
3439 (if (stringp (car handle))
3441 (car (mm-handle-type handle)))))
3445 (unless ,(not ibegend)
3446 (setq gnus-article-mime-handle-alist
3447 ',gnus-article-mime-handle-alist))
3448 (gnus-mime-display-alternative
3449 ',ihandles ',handle ',begend ,id))
3450 local-map ,gnus-mime-button-map
3451 ,gnus-mouse-face-prop ,gnus-article-mouse-face
3452 face ,gnus-article-button-face
3453 keymap ,gnus-mime-button-map
3456 (widget-convert-button 'link from (point)
3457 :action 'gnus-widget-press-button
3458 :button-keymap gnus-widget-button-keymap)
3462 (if (stringp (car preferred))
3463 (gnus-display-mime preferred)
3464 (let ((mail-parse-charset gnus-newsgroup-charset))
3465 (mm-display-part preferred)))
3466 (goto-char (point-max))
3467 (setcdr begend (point-marker)))))
3469 (goto-char point))))
3471 (defun gnus-article-wash-status ()
3472 "Return a string which display status of article washing."
3474 (set-buffer gnus-article-buffer)
3475 (let ((cite (gnus-article-hidden-text-p 'cite))
3476 (headers (gnus-article-hidden-text-p 'headers))
3477 (boring (gnus-article-hidden-text-p 'boring-headers))
3478 (pgp (gnus-article-hidden-text-p 'pgp))
3479 (pem (gnus-article-hidden-text-p 'pem))
3480 (signature (gnus-article-hidden-text-p 'signature))
3481 (overstrike (gnus-article-hidden-text-p 'overstrike))
3482 (emphasis (gnus-article-hidden-text-p 'emphasis))
3483 (mime gnus-show-mime))
3484 (format "%c%c%c%c%c%c%c"
3486 (if (or headers boring) ?h ? )
3487 (if (or pgp pem) ?p ? )
3488 (if signature ?s ? )
3489 (if overstrike ?o ? )
3491 (if emphasis ?e ? )))))
3493 (fset 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
3495 (defun gnus-article-maybe-hide-headers ()
3496 "Hide unwanted headers if `gnus-have-all-headers' is nil.
3497 Provided for backwards compatibility."
3498 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
3499 (not (save-excursion (set-buffer gnus-summary-buffer)
3500 gnus-have-all-headers)))
3501 (not gnus-inhibit-hiding))
3502 (gnus-article-hide-headers)))
3506 (defun gnus-output-to-file (file-name)
3507 "Append the current article to a file named FILE-NAME."
3508 (let ((artbuf (current-buffer)))
3510 (insert-buffer-substring artbuf)
3511 ;; Append newline at end of the buffer as separator, and then
3513 (goto-char (point-max))
3515 (append-to-file (point-min) (point-max) file-name)
3518 (defun gnus-narrow-to-page (&optional arg)
3519 "Narrow the article buffer to a page.
3520 If given a numerical ARG, move forward ARG pages."
3522 (setq arg (if arg (prefix-numeric-value arg) 0))
3524 (set-buffer gnus-article-buffer)
3525 (goto-char (point-min))
3527 ;; Remove any old next/prev buttons.
3528 (when (gnus-visual-p 'page-marker)
3529 (let ((buffer-read-only nil))
3530 (gnus-remove-text-with-property 'gnus-prev)
3531 (gnus-remove-text-with-property 'gnus-next)))
3534 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
3536 (re-search-forward page-delimiter nil 'move arg)))
3537 (goto-char (match-end 0)))
3540 (if (re-search-forward page-delimiter nil 'move)
3543 (when (and (gnus-visual-p 'page-marker)
3544 (not (= (point-min) 1)))
3546 (goto-char (point-min))
3547 (gnus-insert-prev-page-button)))
3548 (when (and (gnus-visual-p 'page-marker)
3549 (< (+ (point-max) 2) (buffer-size)))
3551 (goto-char (point-max))
3552 (gnus-insert-next-page-button)))))
3554 ;; Article mode commands
3556 (defun gnus-article-goto-next-page ()
3557 "Show the next page of the article."
3559 (when (gnus-article-next-page)
3560 (goto-char (point-min))
3561 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
3563 (defun gnus-article-goto-prev-page ()
3564 "Show the next page of the article."
3566 (if (bobp) (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
3567 (gnus-article-prev-page nil)))
3569 (defun gnus-article-next-page (&optional lines)
3570 "Show the next page of the current article.
3571 If end of article, return non-nil. Otherwise return nil.
3572 Argument LINES specifies lines to be scrolled up."
3574 (move-to-window-line -1)
3577 (and (pos-visible-in-window-p) ;Not continuation line.
3579 ;; Nothing in this page.
3580 (if (or (not gnus-page-broken)
3583 (widen) (forward-line 1) (eobp)))) ;Real end-of-buffer?
3585 (gnus-narrow-to-page 1) ;Go to next page.
3587 ;; More in this page.
3588 (let ((scroll-in-place nil))
3592 ;; Long lines may cause an end-of-buffer error.
3593 (goto-char (point-max)))))
3594 (move-to-window-line 0)
3597 (defun gnus-article-prev-page (&optional lines)
3598 "Show previous page of current article.
3599 Argument LINES specifies lines to be scrolled down."
3601 (move-to-window-line 0)
3602 (if (and gnus-page-broken
3604 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
3606 (gnus-narrow-to-page -1) ;Go to previous page.
3607 (goto-char (point-max))
3609 (let ((scroll-in-place nil))
3613 (beginning-of-buffer
3614 (goto-char (point-min))))
3615 (move-to-window-line 0)))))
3617 (defun gnus-article-refer-article ()
3618 "Read article specified by message-id around point."
3620 (let ((point (point)))
3621 (search-forward ">" nil t) ;Move point to end of "<....>".
3622 (if (re-search-backward "\\(<[^<> \t\n]+>\\)" nil t)
3623 (let ((message-id (match-string 1)))
3625 (set-buffer gnus-summary-buffer)
3626 (gnus-summary-refer-article message-id))
3628 (error "No references around point"))))
3630 (defun gnus-article-show-summary ()
3631 "Reconfigure windows to show summary buffer."
3633 (if (not (gnus-buffer-live-p gnus-summary-buffer))
3634 (error "There is no summary buffer for this article buffer")
3635 (gnus-article-set-globals)
3636 (gnus-configure-windows 'article)
3637 (gnus-summary-goto-subject gnus-current-article)
3638 (gnus-summary-position-point)))
3640 (defun gnus-article-describe-briefly ()
3641 "Describe article mode commands briefly."
3643 (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")))
3645 (defun gnus-article-summary-command ()
3646 "Execute the last keystroke in the summary buffer."
3648 (let ((obuf (current-buffer))
3649 (owin (current-window-configuration))
3651 (switch-to-buffer gnus-article-current-summary 'norecord)
3652 (setq func (lookup-key (current-local-map) (this-command-keys)))
3653 (call-interactively func)
3655 (set-window-configuration owin)
3656 (set-window-point (get-buffer-window (current-buffer)) (point))))
3658 (defun gnus-article-summary-command-nosave ()
3659 "Execute the last keystroke in the summary buffer."
3662 (pop-to-buffer gnus-article-current-summary 'norecord)
3663 (setq func (lookup-key (current-local-map) (this-command-keys)))
3664 (call-interactively func)))
3666 (defun gnus-article-check-buffer ()
3667 "Beep if not in an article buffer."
3668 (unless (eq (get-buffer gnus-article-buffer) (current-buffer))
3669 (error "Command invoked outside of a Gnus article buffer")))
3671 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
3672 "Read a summary buffer key sequence and execute it from the article buffer."
3674 (gnus-article-check-buffer)
3676 '("q" "Q" "c" "r" "R" "\C-c\C-f" "m" "a" "f" "F"
3677 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
3678 "=" "^" "\M-^" "|"))
3684 '("n" "Gn" "p" "Gp"))
3687 (set-buffer gnus-article-current-summary)
3688 (let (gnus-pick-mode)
3689 (push (or key last-command-event) unread-command-events)
3690 (setq keys (read-key-sequence nil))))
3693 (if (or (member keys nosaves)
3694 (member keys nosave-but-article)
3695 (member keys nosave-in-article))
3697 (save-window-excursion
3698 (pop-to-buffer gnus-article-current-summary 'norecord)
3699 ;; We disable the pick minor mode commands.
3700 (let (gnus-pick-mode)
3701 (setq func (lookup-key (current-local-map) keys))))
3704 (unless (member keys nosave-in-article)
3705 (set-buffer gnus-article-current-summary))
3706 (call-interactively func)
3707 (setq new-sum-point (point)))
3708 (when (member keys nosave-but-article)
3709 (pop-to-buffer gnus-article-buffer 'norecord)))
3710 ;; These commands should restore window configuration.
3711 (let ((obuf (current-buffer))
3712 (owin (current-window-configuration))
3714 (summary gnus-article-current-summary)
3715 func in-buffer selected)
3716 (if not-restore-window
3717 (pop-to-buffer summary 'norecord)
3718 (switch-to-buffer summary 'norecord))
3719 (setq in-buffer (current-buffer))
3720 ;; We disable the pick minor mode commands.
3721 (if (setq func (let (gnus-pick-mode)
3722 (lookup-key (current-local-map) keys)))
3724 (call-interactively func)
3725 (setq new-sum-point (point)))
3727 (when (eq in-buffer (current-buffer))
3728 (setq selected (gnus-summary-select-article))
3730 (unless not-restore-window
3731 (set-window-configuration owin))
3732 (when (eq selected 'old)
3734 (set-window-start (get-buffer-window (current-buffer))
3736 (set-window-point (get-buffer-window (current-buffer))
3738 (let ((win (get-buffer-window gnus-article-current-summary)))
3740 (set-window-point win new-sum-point))))))))
3742 (defun gnus-article-hide (&optional arg force)
3743 "Hide all the gruft in the current article.
3744 This means that PGP stuff, signatures, cited text and (some)
3745 headers will be hidden.
3746 If given a prefix, show the hidden text instead."
3747 (interactive (append (gnus-article-hidden-arg) (list 'force)))
3748 (gnus-article-hide-headers arg)
3749 (gnus-article-hide-pgp arg)
3750 (gnus-article-hide-citation-maybe arg force)
3751 (gnus-article-hide-signature arg))
3753 (defun gnus-article-maybe-highlight ()
3754 "Do some article highlighting if article highlighting is requested."
3755 (when (gnus-visual-p 'article-highlight 'highlight)
3756 (gnus-article-highlight-some)))
3758 (defun gnus-check-group-server ()
3759 ;; Make sure the connection to the server is alive.
3760 (unless (gnus-server-opened
3761 (gnus-find-method-for-group gnus-newsgroup-name))
3762 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
3763 (gnus-request-group gnus-newsgroup-name t)))
3765 (defun gnus-request-article-this-buffer (article group)
3766 "Get an article and insert it into this buffer."
3767 (let (do-update-line sparse-header)
3771 (gnus-kill-all-overlays)
3772 (setq group (or group gnus-newsgroup-name))
3774 ;; Using `gnus-request-article' directly will insert the article into
3775 ;; `nntp-server-buffer' - so we'll save some time by not having to
3776 ;; copy it from the server buffer into the article buffer.
3778 ;; We only request an article by message-id when we do not have the
3779 ;; headers for it, so we'll have to get those.
3780 (when (stringp article)
3781 (let ((gnus-override-method gnus-refer-article-method))
3782 (gnus-read-header article)))
3784 ;; If the article number is negative, that means that this article
3785 ;; doesn't belong in this newsgroup (possibly), so we find its
3786 ;; message-id and request it by id instead of number.
3787 (when (and (numberp article)
3789 (get-buffer gnus-summary-buffer)
3790 (gnus-buffer-exists-p gnus-summary-buffer))
3792 (set-buffer gnus-summary-buffer)
3793 (let ((header (gnus-summary-article-header article)))
3796 ((memq article gnus-newsgroup-sparse)
3797 ;; This is a sparse gap article.
3798 (setq do-update-line article)
3799 (setq article (mail-header-id header))
3800 (let ((gnus-override-method gnus-refer-article-method))
3801 (setq sparse-header (gnus-read-header article)))
3802 (setq gnus-newsgroup-sparse
3803 (delq article gnus-newsgroup-sparse)))
3805 ;; It's a real article.
3806 (setq article (mail-header-id header)))
3808 ;; It is an extracted pseudo-article.
3809 (setq article 'pseudo)
3810 (gnus-request-pseudo-article header))))
3812 (let ((method (gnus-find-method-for-group
3813 gnus-newsgroup-name)))
3814 (when (and (eq (car method) 'nneething)
3817 (file-name-as-directory
3818 (or (cadr (assq 'nneething-address method))
3820 (mail-header-subject header))))
3821 (when (file-directory-p dir)
3822 (setq article 'nneething)
3823 (gnus-group-enter-directory dir))))))))
3826 ;; Refuse to select canceled articles.
3827 ((and (numberp article)
3829 (get-buffer gnus-summary-buffer)
3830 (gnus-buffer-exists-p gnus-summary-buffer)
3831 (eq (cdr (save-excursion
3832 (set-buffer gnus-summary-buffer)
3833 (assq article gnus-newsgroup-reads)))
3834 gnus-canceled-mark))
3836 ;; Check the backlog.
3837 ((and gnus-keep-backlog
3838 (gnus-backlog-request-article group article (current-buffer)))
3840 ;; Check asynchronous pre-fetch.
3841 ((gnus-async-request-fetched-article group article (current-buffer))
3842 (gnus-async-prefetch-next group article gnus-summary-buffer)
3843 (when (and (numberp article) gnus-keep-backlog)
3844 (gnus-backlog-enter-article group article (current-buffer)))
3847 ((and gnus-use-cache
3849 (gnus-cache-request-article article group))
3851 ;; Get the article and put into the article buffer.
3852 ((or (stringp article) (numberp article))
3853 (let ((gnus-override-method
3854 (and (stringp article) gnus-refer-article-method))
3855 (buffer-read-only nil))
3857 (gnus-kill-all-overlays)
3858 (gnus-check-group-server)
3859 (when (gnus-request-article article group (current-buffer))
3860 (when (numberp article)
3861 (gnus-async-prefetch-next group article gnus-summary-buffer)
3862 (when gnus-keep-backlog
3863 (gnus-backlog-enter-article
3864 group article (current-buffer))))
3869 ;; Associate this article with the current summary buffer.
3870 (setq gnus-article-current-summary gnus-summary-buffer)
3872 ;; Take the article from the original article buffer
3873 ;; and place it in the buffer it's supposed to be in.
3874 (when (and (get-buffer gnus-article-buffer)
3875 (equal (buffer-name (current-buffer))
3876 (buffer-name (get-buffer gnus-article-buffer))))
3878 (if (get-buffer gnus-original-article-buffer)
3879 (set-buffer gnus-original-article-buffer)
3880 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
3881 (buffer-disable-undo)
3882 (setq major-mode 'gnus-original-article-mode)
3883 (setq buffer-read-only t))
3884 (let (buffer-read-only)
3886 (insert-buffer-substring gnus-article-buffer))
3887 (setq gnus-original-article (cons group article)))
3890 (run-hooks 'gnus-article-decode-hook)
3891 ;; Mark article as decoded or not.
3892 (setq gnus-article-decoded-p gnus-article-decode-hook))
3894 ;; Update sparse articles.
3895 (when (and do-update-line
3896 (or (numberp article)
3898 (let ((buf (current-buffer)))
3899 (set-buffer gnus-summary-buffer)
3900 (gnus-summary-update-article do-update-line sparse-header)
3901 (gnus-summary-goto-subject do-update-line nil t)
3902 (set-window-point (get-buffer-window (current-buffer) t)
3904 (set-buffer buf))))))
3910 (defcustom gnus-article-edit-mode-hook nil
3911 "Hook run in article edit mode buffers."
3912 :group 'gnus-article-various
3915 (defcustom gnus-article-edit-article-setup-function
3916 'gnus-article-mime-edit-article-setup
3917 "Function called to setup an editing article buffer."
3918 :group 'gnus-article-various
3921 (defvar gnus-article-edit-done-function nil)
3923 (defvar gnus-article-edit-mode-map nil)
3925 ;; Should we be using derived.el for this?
3926 (unless gnus-article-edit-mode-map
3927 (setq gnus-article-edit-mode-map (make-sparse-keymap))
3928 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
3930 (gnus-define-keys gnus-article-edit-mode-map
3931 "\C-c\C-c" gnus-article-edit-done
3932 "\C-c\C-k" gnus-article-edit-exit)
3934 (gnus-define-keys (gnus-article-edit-wash-map
3935 "\C-c\C-w" gnus-article-edit-mode-map)
3936 "f" gnus-article-edit-full-stops))
3938 (defun gnus-article-edit-mode ()
3939 "Major mode for editing articles.
3940 This is an extended text-mode.
3942 \\{gnus-article-edit-mode-map}"
3944 (setq major-mode 'gnus-article-edit-mode)
3945 (setq mode-name "Article Edit")
3946 (use-local-map gnus-article-edit-mode-map)
3947 (make-local-variable 'gnus-article-edit-done-function)
3948 (make-local-variable 'gnus-prev-winconf)
3949 (setq buffer-read-only nil)
3950 (buffer-enable-undo)
3952 (gnus-run-hooks 'text-mode-hook 'gnus-article-edit-mode-hook))
3954 (defun gnus-article-edit (&optional force)
3955 "Edit the current article.
3956 This will have permanent effect only in mail groups.
3957 If FORCE is non-nil, allow editing of articles even in read-only
3960 (when (and (not force)
3961 (gnus-group-read-only-p))
3962 (error "The current newsgroup does not support article editing"))
3963 (gnus-article-date-original)
3964 (gnus-article-edit-article
3966 `(lambda (no-highlight)
3968 (gnus-summary-edit-article-done
3969 ,(or (mail-header-references gnus-current-headers) "")
3970 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
3972 (defun gnus-article-edit-article (start-func exit-func)
3973 "Start editing the contents of the current article buffer."
3974 (let ((winconf (current-window-configuration)))
3975 (set-buffer gnus-article-buffer)
3976 (gnus-article-edit-mode)
3977 (funcall start-func)
3978 ;;(gnus-article-delete-text-of-type 'annotation)
3979 ;;(gnus-set-text-properties (point-min) (point-max) nil)
3980 (gnus-configure-windows 'edit-article)
3981 (setq gnus-article-edit-done-function exit-func)
3982 (setq gnus-prev-winconf winconf)
3983 (when gnus-article-edit-article-setup-function
3984 (funcall gnus-article-edit-article-setup-function))
3985 (gnus-message 6 "C-c C-c to end edits")))
3987 (defun gnus-article-edit-done (&optional arg)
3988 "Update the article edits and exit."
3993 (when (article-goto-body)
3994 (let ((lines (count-lines (point) (point-max)))
3995 (length (- (point-max) (point)))
3996 (case-fold-search t)
3997 (body (copy-marker (point))))
3998 (goto-char (point-min))
3999 (when (re-search-forward "^content-length:[ \t]\\([0-9]+\\)" body t)
4000 (delete-region (match-beginning 1) (match-end 1))
4001 (insert (number-to-string length)))
4002 (goto-char (point-min))
4003 (when (re-search-forward
4004 "^x-content-length:[ \t]\\([0-9]+\\)" body t)
4005 (delete-region (match-beginning 1) (match-end 1))
4006 (insert (number-to-string length)))
4007 (goto-char (point-min))
4008 (when (re-search-forward "^lines:[ \t]\\([0-9]+\\)" body t)
4009 (delete-region (match-beginning 1) (match-end 1))
4010 (insert (number-to-string lines)))))))
4011 (let ((func gnus-article-edit-done-function)
4012 (buf (current-buffer))
4013 (start (window-start)))
4014 (remove-hook 'gnus-article-mode-hook
4015 'gnus-article-mime-edit-article-unwind)
4016 (gnus-article-edit-exit)
4019 (let ((buffer-read-only nil))
4021 ;; The cache and backlog have to be flushed somewhat.
4022 (when gnus-keep-backlog
4023 (gnus-backlog-remove-article
4024 (car gnus-article-current) (cdr gnus-article-current)))
4025 ;; Flush original article as well.
4027 (when (get-buffer gnus-original-article-buffer)
4028 (set-buffer gnus-original-article-buffer)
4029 (setq gnus-original-article nil)))
4030 (when gnus-use-cache
4031 (gnus-cache-update-article
4032 (car gnus-article-current) (cdr gnus-article-current))))
4034 (set-window-start (get-buffer-window buf) start)
4035 (set-window-point (get-buffer-window buf) (point))))
4037 (defun gnus-article-edit-exit ()
4038 "Exit the article editing without updating."
4040 ;; We remove all text props from the article buffer.
4041 (let ((buf (format "%s" (buffer-string)))
4042 (curbuf (current-buffer))
4044 (window-start (window-start)))
4047 (let ((winconf gnus-prev-winconf))
4049 (set-window-configuration winconf)
4050 ;; Tippy-toe some to make sure that point remains where it was.
4051 (save-current-buffer
4053 (set-window-start (get-buffer-window (current-buffer)) window-start)
4056 (defun gnus-article-edit-full-stops ()
4057 "Interactively repair spacing at end of sentences."
4060 (goto-char (point-min))
4061 (search-forward-regexp "^$" nil t)
4062 (let ((case-fold-search nil))
4063 (query-replace-regexp "\\([.!?][])}]* \\)\\([[({A-Z]\\)" "\\1 \\2"))))
4066 ;;; Article editing with MIME-Edit
4069 (defcustom gnus-article-mime-edit-article-setup-hook nil
4070 "Hook run after setting up a MIME editing article buffer."
4071 :group 'gnus-article-various
4074 (defun gnus-article-mime-edit-article-unwind ()
4075 "Unwind `gnus-article-buffer' if article editing was given up."
4076 (remove-hook 'gnus-article-mode-hook 'gnus-article-mime-edit-article-unwind)
4077 (when mime-edit-mode-flag
4078 (mime-edit-exit 'nomime 'no-error)
4080 (when (featurep 'font-lock)
4081 (setq font-lock-defaults nil)
4082 (font-lock-mode 0)))
4084 (defun gnus-article-mime-edit-article-setup ()
4085 "Convert current buffer to MIME-Edit buffer and turn on MIME-Edit mode
4086 after replacing with the original article."
4087 (setq gnus-show-mime t)
4088 (setq gnus-article-edit-done-function
4089 `(lambda (&rest args)
4090 (when mime-edit-mode-flag
4093 (goto-char (point-min))
4094 (let (case-fold-search)
4095 (when (re-search-forward
4096 (format "^%s$" (regexp-quote mail-header-separator))
4098 (replace-match "")))
4099 (when (featurep 'font-lock)
4100 (setq font-lock-defaults nil)
4102 (apply ,gnus-article-edit-done-function args)
4103 (set-buffer gnus-original-article-buffer)
4105 (insert-buffer gnus-article-buffer)
4106 (setq gnus-current-headers (gnus-article-make-full-mail-header))
4107 (gnus-article-prepare-display)))
4108 (substitute-key-definition
4109 'gnus-article-edit-exit 'gnus-article-mime-edit-exit
4110 gnus-article-edit-mode-map)
4112 (insert-buffer gnus-original-article-buffer)
4114 (when (featurep 'font-lock)
4115 (set (make-local-variable 'font-lock-defaults)
4116 '(message-font-lock-keywords t))
4117 (font-lock-set-defaults)
4118 (turn-on-font-lock))
4119 (add-hook 'gnus-article-mode-hook 'gnus-article-mime-edit-article-unwind)
4120 (gnus-run-hooks 'gnus-article-mime-edit-article-setup-hook))
4122 (defun gnus-article-mime-edit-exit ()
4123 "Exit the article MIME editing without updating."
4125 (let ((winconf gnus-prev-winconf)
4127 (when mime-edit-mode-flag
4130 (goto-char (point-min))
4131 (let (case-fold-search)
4132 (when (re-search-forward
4133 (format "^%s$" (regexp-quote mail-header-separator)) nil t)
4134 (replace-match "")))
4135 (when (featurep 'font-lock)
4136 (setq font-lock-defaults nil)
4138 ;; We remove all text props from the article buffer.
4139 (setq buf (format "%s" (buffer-string)))
4140 (set-buffer (get-buffer-create gnus-original-article-buffer))
4143 (setq gnus-current-headers (gnus-article-make-full-mail-header))
4144 (gnus-article-prepare-display)
4145 (set-window-configuration winconf)))
4148 ;;; Article highlights
4151 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
4153 ;;; Internal Variables:
4155 (defcustom gnus-button-url-regexp "\\b\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?\\([-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,]\\|\\w\\)+\\([-a-zA-Z0-9_=#$@~`%&*+|\\/]\\|\\w\\)"
4156 "Regular expression that matches URLs."
4157 :group 'gnus-article-buttons
4160 (defcustom gnus-button-alist
4161 `(("<\\(url:[>\n\t ]*?\\)?news:[>\n\t ]*\\([^>\n\t ]*@[^>\n\t ]*\\)>"
4162 0 t gnus-button-message-id 2)
4163 ("\\bnews:\\([^>\n\t ]*@[^>)!;:,\n\t ]*\\)" 0 t gnus-button-message-id 1)
4164 ("\\(\\b<\\(url:[>\n\t ]*\\)?news:[>\n\t ]*\\(//\\)?\\([^>\n\t ]*\\)>\\)"
4166 gnus-button-fetch-group 4)
4167 ("\\bnews:\\(//\\)?\\([^'\">\n\t ]+\\)" 0 t gnus-button-fetch-group 2)
4168 ("\\bin\\( +article\\| +message\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)" 2
4169 t gnus-button-message-id 3)
4170 ("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>" 0 t gnus-url-mailto 2)
4171 ("mailto:\\([-a-zA-Z.@_+0-9%]+\\)" 0 t gnus-url-mailto 1)
4172 ("\\bmailto:\\([^ \n\t]+\\)" 0 t gnus-url-mailto 1)
4173 ;; This is how URLs _should_ be embedded in text...
4174 ("<URL: *\\([^>]*\\)>" 0 t gnus-button-embedded-url 1)
4176 (,gnus-button-url-regexp 0 t gnus-button-url 0))
4177 "*Alist of regexps matching buttons in article bodies.
4179 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
4180 REGEXP: is the string matching text around the button,
4181 BUTTON: is the number of the regexp grouping actually matching the button,
4182 FORM: is a lisp expression which must eval to true for the button to
4184 CALLBACK: is the function to call when the user push this button, and each
4185 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
4187 CALLBACK can also be a variable, in that case the value of that
4188 variable it the real callback function."
4189 :group 'gnus-article-buttons
4190 :type '(repeat (list regexp
4191 (integer :tag "Button")
4193 (function :tag "Callback")
4196 (integer :tag "Regexp group")))))
4198 (defcustom gnus-header-button-alist
4199 `(("^\\(References\\|Message-I[Dd]\\):" "<[^>]+>"
4200 0 t gnus-button-message-id 0)
4201 ("^\\(From\\|Reply-To\\):" ": *\\(.+\\)$" 1 t gnus-button-reply 1)
4202 ("^\\(Cc\\|To\\):" "[^ \t\n<>,()\"]+@[^ \t\n<>,()\"]+"
4203 0 t gnus-button-mailto 0)
4204 ("^X-[Uu][Rr][Ll]:" ,gnus-button-url-regexp 0 t gnus-button-url 0)
4205 ("^Subject:" ,gnus-button-url-regexp 0 t gnus-button-url 0)
4206 ("^[^:]+:" ,gnus-button-url-regexp 0 t gnus-button-url 0)
4207 ("^[^:]+:" "\\(<\\(url: \\)?news:\\([^>\n ]*\\)>\\)" 1 t
4208 gnus-button-message-id 3))
4209 "*Alist of headers and regexps to match buttons in article heads.
4211 This alist is very similar to `gnus-button-alist', except that each
4212 alist has an additional HEADER element first in each entry:
4214 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
4216 HEADER is a regexp to match a header. For a fuller explanation, see
4217 `gnus-button-alist'."
4218 :group 'gnus-article-buttons
4219 :group 'gnus-article-headers
4220 :type '(repeat (list (regexp :tag "Header")
4222 (integer :tag "Button")
4224 (function :tag "Callback")
4227 (integer :tag "Regexp group")))))
4229 (defvar gnus-button-regexp nil)
4230 (defvar gnus-button-marker-list nil)
4231 ;; Regexp matching any of the regexps from `gnus-button-alist'.
4233 (defvar gnus-button-last nil)
4234 ;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
4238 (defun gnus-article-push-button (event)
4239 "Check text under the mouse pointer for a callback function.
4240 If the text under the mouse pointer has a `gnus-callback' property,
4241 call it with the value of the `gnus-data' text property."
4243 (set-buffer (window-buffer (posn-window (event-start event))))
4244 (let* ((pos (posn-point (event-start event)))
4245 (data (get-text-property pos 'gnus-data))
4246 (fun (get-text-property pos 'gnus-callback)))
4249 (funcall fun data))))
4251 (defun gnus-article-press-button ()
4252 "Check text at point for a callback function.
4253 If the text at point has a `gnus-callback' property,
4254 call it with the value of the `gnus-data' text property."
4256 (let* ((data (get-text-property (point) 'gnus-data))
4257 (fun (get-text-property (point) 'gnus-callback)))
4259 (funcall fun data))))
4261 (defun gnus-article-prev-button (n)
4262 "Move point to N buttons backward.
4263 If N is negative, move forward instead."
4265 (gnus-article-next-button (- n)))
4267 (defun gnus-article-next-button (n)
4268 "Move point to N buttons forward.
4269 If N is negative, move backward instead."
4271 (let ((function (if (< n 0) 'previous-single-property-change
4272 'next-single-property-change))
4273 (inhibit-point-motion-hooks t)
4275 (limit (if (< n 0) (point-min) (point-max))))
4277 (while (and (not (= limit (point)))
4279 ;; Skip past the current button.
4280 (when (get-text-property (point) 'gnus-callback)
4281 (goto-char (funcall function (point) 'gnus-callback nil limit)))
4282 ;; Go to the next (or previous) button.
4283 (gnus-goto-char (funcall function (point) 'gnus-callback nil limit))
4284 ;; Put point at the start of the button.
4285 (when (and backward (not (get-text-property (point) 'gnus-callback)))
4286 (goto-char (funcall function (point) 'gnus-callback nil limit)))
4287 ;; Skip past intangible buttons.
4288 (when (get-text-property (point) 'intangible)
4292 (gnus-message 5 "No more buttons"))
4295 (defun gnus-article-highlight (&optional force)
4296 "Highlight current article.
4297 This function calls `gnus-article-highlight-headers',
4298 `gnus-article-highlight-citation',
4299 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
4300 do the highlighting. See the documentation for those functions."
4301 (interactive (list 'force))
4302 (gnus-article-highlight-headers)
4303 (gnus-article-highlight-citation force)
4304 (gnus-article-highlight-signature)
4305 (gnus-article-add-buttons force)
4306 (gnus-article-add-buttons-to-head))
4308 (defun gnus-article-highlight-some (&optional force)
4309 "Highlight current article.
4310 This function calls `gnus-article-highlight-headers',
4311 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
4312 do the highlighting. See the documentation for those functions."
4313 (interactive (list 'force))
4314 (gnus-article-highlight-headers)
4315 (gnus-article-highlight-signature)
4316 (gnus-article-add-buttons))
4318 (defun gnus-article-highlight-headers ()
4319 "Highlight article headers as specified by `gnus-header-face-alist'."
4322 (set-buffer gnus-article-buffer)
4324 (let ((alist gnus-header-face-alist)
4325 (buffer-read-only nil)
4326 (case-fold-search t)
4327 (inhibit-point-motion-hooks t)
4328 entry regexp header-face field-face from hpoints fpoints)
4329 (article-narrow-to-head)
4330 (while (setq entry (pop alist))
4331 (goto-char (point-min))
4332 (setq regexp (concat "^\\("
4333 (if (string-equal "" (nth 0 entry))
4337 header-face (nth 1 entry)
4338 field-face (nth 2 entry))
4339 (while (and (re-search-forward regexp nil t)
4343 (unless (search-forward ":" nil t)
4345 (when (and header-face
4346 (not (memq (point) hpoints)))
4347 (push (point) hpoints)
4348 (gnus-put-text-property from (point) 'face header-face))
4349 (when (and field-face
4350 (not (memq (setq from (point)) fpoints)))
4352 (if (re-search-forward "^[^ \t]" nil t)
4354 (goto-char (point-max)))
4355 (gnus-put-text-property from (point) 'face field-face))))))))
4357 (defun gnus-article-highlight-signature ()
4358 "Highlight the signature in an article.
4359 It does this by highlighting everything after
4360 `gnus-signature-separator' using `gnus-signature-face'."
4363 (set-buffer gnus-article-buffer)
4364 (let ((buffer-read-only nil)
4365 (inhibit-point-motion-hooks t))
4367 (when (and gnus-signature-face
4368 (gnus-article-narrow-to-signature))
4369 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max))
4370 'face gnus-signature-face)
4372 (gnus-article-search-signature)
4373 (let ((start (match-beginning 0))
4374 (end (set-marker (make-marker) (1+ (match-end 0)))))
4375 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
4378 (defun gnus-button-in-region-p (b e prop)
4379 "Say whether PROP exists in the region."
4380 (text-property-not-all b e prop nil))
4382 (defun gnus-article-add-buttons (&optional force)
4383 "Find external references in the article and make buttons of them.
4384 \"External references\" are things like Message-IDs and URLs, as
4385 specified by `gnus-button-alist'."
4386 (interactive (list 'force))
4388 (set-buffer gnus-article-buffer)
4389 (let ((buffer-read-only nil)
4390 (inhibit-point-motion-hooks t)
4391 (case-fold-search t)
4392 (alist gnus-button-alist)
4394 ;; Remove all old markers.
4396 (while (setq marker (pop gnus-button-marker-list))
4398 (when (setq entry (gnus-button-entry))
4399 (put-text-property (match-beginning (nth 1 entry))
4400 (match-end (nth 1 entry))
4401 'gnus-callback nil))
4402 (set-marker marker nil)))
4403 ;; We skip the headers.
4406 (while (setq entry (pop alist))
4407 (setq regexp (car entry))
4409 (while (re-search-forward regexp nil t)
4410 (let* ((start (and entry (match-beginning (nth 1 entry))))
4411 (end (and entry (match-end (nth 1 entry))))
4412 (from (match-beginning 0)))
4413 (when (and (or (eq t (nth 2 entry))
4414 (eval (nth 2 entry)))
4415 (not (gnus-button-in-region-p
4416 start end 'gnus-callback)))
4417 ;; That optional form returned non-nil, so we add the
4419 (gnus-article-add-button
4420 start end 'gnus-button-push
4421 (car (push (set-marker (make-marker) from)
4422 gnus-button-marker-list))))))))))
4424 ;; Add buttons to the head of an article.
4425 (defun gnus-article-add-buttons-to-head ()
4426 "Add buttons to the head of the article."
4429 (set-buffer gnus-article-buffer)
4431 (let ((buffer-read-only nil)
4432 (inhibit-point-motion-hooks t)
4433 (case-fold-search t)
4434 (alist gnus-header-button-alist)
4436 (article-narrow-to-head)
4438 ;; Each alist entry.
4439 (setq entry (car alist)
4441 (goto-char (point-min))
4442 (while (re-search-forward (car entry) nil t)
4443 ;; Each header matching the entry.
4444 (setq beg (match-beginning 0))
4445 (setq end (or (and (re-search-forward "^[^ \t]" nil t)
4446 (match-beginning 0))
4449 (while (re-search-forward (nth 1 entry) end t)
4450 ;; Each match within a header.
4451 (let* ((entry (cdr entry))
4452 (start (match-beginning (nth 1 entry)))
4453 (end (match-end (nth 1 entry)))
4454 (form (nth 2 entry)))
4455 (goto-char (match-end 0))
4457 (gnus-article-add-button
4458 start end (nth 3 entry)
4459 (buffer-substring (match-beginning (nth 4 entry))
4460 (match-end (nth 4 entry)))))))
4461 (goto-char end)))))))
4463 ;;; External functions:
4465 (defun gnus-article-add-button (from to fun &optional data)
4466 "Create a button between FROM and TO with callback FUN and data DATA."
4467 (when gnus-article-button-face
4468 (gnus-overlay-put (gnus-make-overlay from to)
4469 'face gnus-article-button-face))
4470 (gnus-add-text-properties
4472 (nconc (and gnus-article-mouse-face
4473 (list gnus-mouse-face-prop gnus-article-mouse-face))
4474 (list 'gnus-callback fun)
4475 (and data (list 'gnus-data data)))))
4477 ;;; Internal functions:
4479 (defun gnus-article-set-globals ()
4481 (set-buffer gnus-summary-buffer)
4482 (gnus-set-global-variables)))
4484 (defun gnus-signature-toggle (end)
4486 (set-buffer gnus-article-buffer)
4487 (let ((buffer-read-only nil)
4488 (inhibit-point-motion-hooks t))
4489 (if (get-text-property end 'invisible)
4490 (gnus-article-unhide-text end (point-max))
4491 (gnus-article-hide-text end (point-max) gnus-hidden-properties)))))
4493 (defun gnus-button-entry ()
4494 ;; Return the first entry in `gnus-button-alist' matching this place.
4495 (let ((alist gnus-button-alist)
4498 (setq entry (pop alist))
4499 (if (looking-at (car entry))
4504 (defun gnus-button-push (marker)
4505 ;; Push button starting at MARKER.
4508 (let* ((entry (gnus-button-entry))
4509 (inhibit-point-motion-hooks t)
4511 (args (mapcar (lambda (group)
4512 (let ((string (match-string group)))
4513 (gnus-set-text-properties
4514 0 (length string) nil string)
4521 (fboundp (symbol-value fun)))
4522 (apply (symbol-value fun) args))
4524 (gnus-message 1 "You must define `%S' to use this button"
4525 (cons fun args)))))))
4527 (defun gnus-button-message-id (message-id)
4530 (set-buffer gnus-summary-buffer)
4531 (gnus-summary-refer-article message-id)))
4533 (defun gnus-button-fetch-group (address)
4534 "Fetch GROUP specified by ADDRESS."
4535 (if (not (string-match "[:/]" address))
4536 ;; This is just a simple group url.
4537 (gnus-group-read-ephemeral-group address gnus-select-method)
4538 (if (not (string-match "^\\([^:/]+\\)\\(:\\([^/]+\\)/\\)?\\(.*\\)$"
4540 (error "Can't parse %s" address)
4541 (gnus-group-read-ephemeral-group
4542 (match-string 4 address)
4543 `(nntp ,(match-string 1 address)
4544 (nntp-address ,(match-string 1 address))
4545 (nntp-port-number ,(if (match-end 3)
4546 (match-string 3 address)
4549 (defun gnus-url-parse-query-string (query &optional downcase)
4550 (let (retval pairs cur key val)
4551 (setq pairs (split-string query "&"))
4553 (setq cur (car pairs)
4555 (if (not (string-match "=" cur))
4557 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
4558 val (gnus-url-unhex-string (substring cur (match-end 0) nil)))
4560 (setq key (downcase key)))
4561 (setq cur (assoc key retval))
4563 (setcdr cur (cons val (cdr cur)))
4564 (setq retval (cons (list key val) retval)))))
4567 (defun gnus-url-unhex (x)
4574 (defun gnus-url-unhex-string (str &optional allow-newlines)
4575 "Remove %XXX embedded spaces, etc in a url.
4576 If optional second argument ALLOW-NEWLINES is non-nil, then allow the
4577 decoding of carriage returns and line feeds in the string, which is normally
4578 forbidden in URL encoding."
4579 (setq str (or str ""))
4581 (case-fold-search t))
4582 (while (string-match "%[0-9a-f][0-9a-f]" str)
4583 (let* ((start (match-beginning 0))
4584 (ch1 (gnus-url-unhex (elt str (+ start 1))))
4586 (gnus-url-unhex (elt str (+ start 2))))))
4588 tmp (substring str 0 start)
4591 (char-to-string code))
4592 ((or (= code ?\n) (= code ?\r))
4594 (t (char-to-string code))))
4595 str (substring str (match-end 0)))))
4596 (setq tmp (concat tmp str))
4599 (defun gnus-url-mailto (url)
4600 ;; Send mail to someone
4601 (when (string-match "mailto:/*\\(.*\\)" url)
4602 (setq url (substring url (match-beginning 1) nil)))
4603 (let (to args subject func)
4604 (if (string-match (regexp-quote "?") url)
4605 (setq to (gnus-url-unhex-string (substring url 0 (match-beginning 0)))
4606 args (gnus-url-parse-query-string
4607 (substring url (match-end 0) nil) t))
4608 (setq to (gnus-url-unhex-string url)))
4609 (setq args (cons (list "to" to) args)
4610 subject (cdr-safe (assoc "subject" args)))
4611 (gnus-setup-message 'reply
4614 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
4617 (message-position-on-field (caar args)))
4618 (insert (mapconcat 'identity (cdar args) ", "))
4619 (setq args (cdr args)))
4622 (message-goto-subject)))))
4624 (defun gnus-button-mailto (address)
4626 (set-buffer (gnus-copy-article-buffer))
4627 (gnus-setup-message 'reply
4628 (message-reply address)))
4630 (defun gnus-button-reply (address)
4631 ;; Reply to ADDRESS.
4632 (gnus-setup-message 'reply
4633 (message-reply address)))
4635 (defun gnus-button-url (address)
4637 ;; In Emacs 20, `browse-url-browser-function' may be an alist.
4638 (if (listp browse-url-browser-function)
4639 (browse-url address)
4640 (funcall browse-url-browser-function address)))
4642 (defun gnus-button-embedded-url (address)
4644 ;; In Emacs 20, `browse-url-browser-function' may be an alist.
4645 (if (listp browse-url-browser-function)
4646 (browse-url (gnus-strip-whitespace address))
4647 (funcall browse-url-browser-function (gnus-strip-whitespace address))))
4649 ;;; Next/prev buttons in the article buffer.
4651 (defvar gnus-next-page-line-format "%{%(Next page...%)%}\n")
4652 (defvar gnus-prev-page-line-format "%{%(Previous page...%)%}\n")
4654 (defvar gnus-prev-page-map nil)
4655 (unless gnus-prev-page-map
4656 (setq gnus-prev-page-map (make-sparse-keymap))
4657 (define-key gnus-prev-page-map gnus-mouse-2 'gnus-button-prev-page)
4658 (define-key gnus-prev-page-map "\r" 'gnus-button-prev-page))
4660 (defun gnus-insert-prev-page-button ()
4661 (let ((buffer-read-only nil))
4663 gnus-prev-page-line-format nil
4664 `(gnus-prev t local-map ,gnus-prev-page-map
4665 gnus-callback gnus-article-button-prev-page
4666 article-type annotation))))
4668 (defvar gnus-next-page-map nil)
4669 (unless gnus-next-page-map
4670 (setq gnus-next-page-map (make-keymap))
4671 (suppress-keymap gnus-prev-page-map)
4672 (define-key gnus-next-page-map gnus-mouse-2 'gnus-button-next-page)
4673 (define-key gnus-next-page-map "\r" 'gnus-button-next-page))
4675 (defun gnus-button-next-page ()
4676 "Go to the next page."
4678 (let ((win (selected-window)))
4679 (select-window (get-buffer-window gnus-article-buffer t))
4680 (gnus-article-next-page)
4681 (select-window win)))
4683 (defun gnus-button-prev-page ()
4684 "Go to the prev page."
4686 (let ((win (selected-window)))
4687 (select-window (get-buffer-window gnus-article-buffer t))
4688 (gnus-article-prev-page)
4689 (select-window win)))
4691 (defun gnus-insert-next-page-button ()
4692 (let ((buffer-read-only nil))
4693 (gnus-eval-format gnus-next-page-line-format nil
4695 t local-map ,gnus-next-page-map
4696 gnus-callback gnus-article-button-next-page
4697 article-type annotation))))
4699 (defun gnus-article-button-next-page (arg)
4700 "Go to the next page."
4702 (let ((win (selected-window)))
4703 (select-window (get-buffer-window gnus-article-buffer t))
4704 (gnus-article-next-page)
4705 (select-window win)))
4707 (defun gnus-article-button-prev-page (arg)
4708 "Go to the prev page."
4710 (let ((win (selected-window)))
4711 (select-window (get-buffer-window gnus-article-buffer t))
4712 (gnus-article-prev-page)
4713 (select-window win)))
4715 (defvar gnus-decode-header-methods
4716 '(mail-decode-encoded-word-region)
4717 "List of methods used to decode headers.
4719 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item is
4720 FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
4721 (REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
4722 whose names match REGEXP.
4725 ((\"chinese\" . gnus-decode-encoded-word-region-by-guess)
4726 mail-decode-encoded-word-region
4727 (\"chinese\" . rfc1843-decode-region))
4730 (defvar gnus-decode-header-methods-cache nil)
4732 (defun gnus-multi-decode-header (start end)
4733 "Apply the functions from `gnus-encoded-word-methods' that match."
4734 (unless (and gnus-decode-header-methods-cache
4735 (eq gnus-newsgroup-name
4736 (car gnus-decode-header-methods-cache)))
4737 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
4740 (nconc gnus-decode-header-methods-cache (list x))
4741 (if (and gnus-newsgroup-name
4742 (string-match (car x) gnus-newsgroup-name))
4743 (nconc gnus-decode-header-methods-cache
4745 gnus-decode-header-methods))
4746 (let ((xlist gnus-decode-header-methods-cache))
4749 (narrow-to-region start end)
4751 (funcall (pop xlist) (point-min) (point-max))))))
4754 ;;; Treatment top-level handling.
4757 (defun gnus-treat-article (condition &optional part-number total-parts type)
4758 (let ((length (- (point-max) (point-min)))
4759 (alist gnus-treatment-function-alist)
4760 (article-goto-body-goes-to-point-min-p t)
4764 (let ((list gnus-article-treat-types))
4766 (when (string-match (pop list) type)
4767 (throw 'found t)))))))
4768 (highlightp (gnus-visual-p 'article-highlight 'highlight))
4770 (gnus-run-hooks 'gnus-part-display-hook)
4771 (while (setq elem (pop alist))
4772 (setq val (symbol-value (car elem)))
4773 (when (and (or (consp val)
4775 (gnus-treat-predicate val)
4776 (or (not (get (car elem) 'highlight))
4779 (funcall (cadr elem)))))))
4781 ;; Dynamic variables.
4782 (defvar part-number)
4783 (defvar total-parts)
4787 (defun gnus-treat-predicate (val)
4790 (and gnus-show-mime t))
4792 (not gnus-show-mime))
4796 (let ((pred (pop val)))
4799 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
4801 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
4803 (not (gnus-treat-predicate val)))
4805 (equal (cadr val) type))
4807 (gnus-treat-predicate pred)))))
4815 (eq part-number total-parts))
4819 (error "%S is not a valid value" val))))
4825 (defun gnus-article-header-presentation-method (entity situation)
4826 (mime-insert-header entity)
4829 (set-alist 'mime-header-presentation-method-alist
4830 'gnus-original-article-mode
4831 #'gnus-article-header-presentation-method)
4833 (defun gnus-mime-preview-quitting-method ()
4834 (mime-preview-kill-buffer)
4835 (delete-other-windows)
4836 (gnus-article-show-summary)
4837 (gnus-summary-select-article gnus-show-all-headers t))
4839 (set-alist 'mime-preview-quitting-method-alist
4840 'gnus-original-article-mode #'gnus-mime-preview-quitting-method)
4842 (defun gnus-following-method (buf)
4845 (message-yank-original)
4847 (goto-char (point-min))
4850 (set-alist 'mime-preview-following-method-alist
4851 'gnus-original-article-mode #'gnus-following-method)
4853 (set-alist 'mime-preview-over-to-previous-method-alist
4854 'gnus-original-article-mode
4856 (gnus-article-read-summary-keys
4857 nil (gnus-character-to-event ?P))))
4859 (set-alist 'mime-preview-over-to-next-method-alist
4860 'gnus-original-article-mode'
4862 (gnus-article-read-summary-keys
4863 nil (gnus-character-to-event ?N))))
4873 (run-hooks 'gnus-art-load-hook)
4875 ;;; gnus-art.el ends here