| blob | a0f14402fbf11483515ce9c770cfe4a69df025bc |
1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996-2017 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Keywords: news
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
23 ;;; Commentary:
25 ;;; Code:
56 "Article display."
61 "Treating article parts."
66 "Hiding article parts."
71 "Article highlighting."
77 "Article signatures."
82 "Article headers."
87 "Special commands on articles."
92 "Fontisizing articles."
97 "Saving articles."
102 "Worshiping the MIME wonder."
107 "Pushable buttons in the article buffer."
112 "Other article options."
161 "All headers that start with this regexp will be hidden.
162 This variable can also be a list of regexps of headers to be ignored.
163 If `gnus-visible-headers' is non-nil, this variable will be ignored."
169 "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^[BGF]?Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Mail-Followup-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From:"
170 "All headers that do not match this regexp will be hidden.
171 This variable can also be a list of regexp of headers to remain visible.
172 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
179 regexp)
181 regexp)
187 "This variable is a list of regular expressions.
188 If it is non-nil, headers that match the regular expressions will
189 be placed first in the article buffer in the sequence specified by
190 this list."
195 "Headers that are only to be displayed if they have interesting data.
196 Possible values in this list are:
198 `empty' Headers with no content.
199 `newsgroups' Newsgroup identical to Gnus group.
200 `to-address' To identical to To-address.
201 `to-list' To identical to To-list.
202 `cc-list' CC identical to To-list.
203 `followup-to' Followup-to identical to Newsgroups.
204 `reply-to' Reply-to identical to From.
205 `date' Date less than four days old.
206 `long-to' To and/or Cc longer than 1024 characters.
207 `many-to' Multiple To and/or Cc."
221 "Skip over text that is not worth reading.
222 By default, if you set this t, then Gnus will display citations and
223 signatures, but will never scroll down to show you a page consisting
224 only of boring text. Boring text is controlled by
225 `gnus-article-boring-faces'."
231 "Regexp matching signature separator.
232 This can also be a list of regexps. In that case, it will be checked
233 from head to tail looking for a separator. Searches will be done from
234 the end of the buffer."
241 "Provide a limit to what is considered a signature.
242 If it is a number, no signature may not be longer (in characters) than
243 that number. If it is a floating point number, no signature may be
244 longer (in lines) than that number. If it is a function, the function
245 will be called without any parameters, and if it returns nil, there is
246 no signature in the buffer. If it is a string, it will be used as a
247 regexp. If it matches, the text in question is not a signature.
249 This can also be a list of the above values."
253 function
258 function
263 ;; We use to have `intangible' here as well, but Emacs's command loop moves
264 ;; point out of invisible text anyway, so `intangible' is clearly not
265 ;; needed there. And XEmacs doesn't handle `intangible' anyway.
267 "Property list to use for hiding text."
271 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
272 ;; frames in a session.
275 'gnus-display-x-face-in-from
276 "{ echo \
277 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
279 "String or function to be executed to display an X-Face header.
280 If it is a string, the command will be executed in a sub-shell
281 asynchronously. The compressed face will be piped to this command."
284 function)
290 "Regexp matching posters whose face shouldn't be shown automatically."
295 "Banner alist for stripping.
296 For example,
297 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
303 banner
304 :variable-document
305 "Alist of regexps (to match group names) and banner."
306 :variable-group gnus-article-washing
307 :parameter-type
309 :value nil
312 regexp
314 :parameter-document
315 "If non-nil, specify how to remove `banners' from articles.
317 Symbol `signature' means to remove signatures delimited by
318 `gnus-signature-separator'. Any other symbol is used to look up a
319 regular expression to match the banner in `gnus-article-banner-alist'.
320 A string is used as a regular expression to match the banner
324 "Alist of mail addresses and banners.
325 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
326 to match a mail address in the From: header, BANNER is one of a symbol
327 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
328 If ADDRESS matches author's mail address, it will remove things like
329 advertisements. For example:
332 "
339 regexp
354 2
357 value)))
365 pattern)
370 value))))
388 types))
390 ;; several times seen it triggered by normal text. --Stef
391 ;; Miles suggests that this form is sometimes used but for italics,
392 ;; so maybe we should map it to `italic'.
393 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
394 ;; 2 3 gnus-emphasis-strikethru)
397 "Alist that says how to fontify certain phrases.
398 Each item looks like this:
402 The first element is a regular expression to be matched. The second
403 is a number that says what regular expression grouping used to find
404 the entire emphasized word. The third is a number that says what
405 regexp grouping should be displayed and highlighted. The fourth
406 is the face used for highlighting."
407 :type
414 :value-create
422 widget
423 :value
426 regexp
429 face)
437 face)))
443 value)))
447 "A regexp to describe whitespace which should not be emphasized.
449 The former avoids underlining of leading and trailing whitespace,
450 and the latter avoids underlining any whitespace at all."
456 "Face used for displaying strong emphasized text (*word*)."
460 "Face used for displaying italic emphasized text (/word/)."
464 "Face used for displaying underlined emphasized text (_word_)."
468 "Face used for displaying underlined bold emphasized text (_*word*_)."
472 "Face used for displaying underlined italic emphasized text (_/word/_)."
476 "Face used for displaying bold italic emphasized text (/*word*/)."
481 "Face used for displaying underlined bold italic emphasized text.
482 Example: (_/*word*/_)."
486 "Face used for displaying strike-through text (-word-)."
491 "Face used for displaying highlighted words."
495 "Format for display of Date headers in article bodies.
496 See `format-time-string' for the possible values.
498 The variable can also be function, which should return a complete Date
499 header. The function is called with one argument, the time, which can
500 be fed to `format-time-string'."
506 "If non-nil, don't remove any headers before saving.
507 This will be overridden by the `:headers' property that the symbol of
508 the saver function, which is specified by `gnus-default-article-saver',
509 might have."
514 "This variable says how much prompting is to be done when saving articles.
515 If it is nil, no prompting will be done, and the articles will be
516 saved to the default files. If this variable is `always', each and
517 every article that is saved will be preceded by a prompt, even when
518 saving large batches of articles. If this variable is neither nil not
519 `always', there the user will be prompted once for a file name for
520 each invocation of the saving commands."
527 "If non-nil, show the cursor in the Article buffer even when not selected."
533 "Headers to keep if `gnus-save-all-headers' is nil.
534 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
535 If that variable is nil, however, all headers that match this regexp
536 will be kept while the rest will be deleted before saving. This and
537 `gnus-save-all-headers' will be overridden by the `:headers' property
538 that the symbol of the saver function, which is specified by
539 `gnus-default-article-saver', might have."
543 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
545 "A function to save articles in your favorite format.
546 The function will be called by way of the `gnus-summary-save-article'
547 command, and friends such as `gnus-summary-save-article-rmail'.
549 Gnus provides the following functions:
551 * gnus-summary-save-in-rmail (Rmail format)
552 * gnus-summary-save-in-mail (Unix mail format)
553 * gnus-summary-save-in-folder (MH folder)
554 * gnus-summary-save-in-file (article format)
555 * gnus-summary-save-body-in-file (article body)
556 * gnus-summary-save-in-vm (use VM's folder format)
557 * gnus-summary-write-to-file (article format -- overwrite)
558 * gnus-summary-write-body-to-file (article body -- overwrite)
559 * gnus-summary-save-in-pipe (article format)
561 The symbol of each function may have the following properties:
563 * :decode
564 The value non-nil means save decoded articles. This is meaningful
565 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
566 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
567 `gnus-summary-save-in-pipe'.
569 * :function
570 The value specifies an alternative function which appends, not
571 overwrites, articles to a file. This implies that when saving many
572 articles at a time, `gnus-prompt-before-saving' is bound to t and all
573 articles are saved in a single file. This is meaningful only with
574 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
576 * :headers
577 The value specifies the symbol of a variable of which the value
578 specifies headers to be saved. If it is omitted,
579 `gnus-save-all-headers' and `gnus-saved-headers' control what
580 headers should be saved."
598 "Coding system used to save decoded articles to a file.
600 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
601 which can safely encode any characters in text. This is used by the
602 commands including:
604 * gnus-summary-save-article-file
605 * gnus-summary-save-article-body-file
606 * gnus-summary-write-article-file
607 * gnus-summary-write-article-body-file
609 and the functions to which you may set `gnus-default-article-saver':
611 * gnus-summary-save-in-file
612 * gnus-summary-save-body-in-file
613 * gnus-summary-write-to-file
614 * gnus-summary-write-body-to-file
616 Those commands and functions save just text displayed in the article
617 buffer to a file if the value of this variable is non-nil. Note that
618 buttonized MIME parts will be lost in a saved file in that case.
619 Otherwise, raw articles will be saved."
634 "A function generating a file name to save articles in Rmail format.
635 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
640 "A function generating a file name to save articles in Unix mail format.
641 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
646 "A function generating a file name to save articles in MH folder.
647 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
652 "A function generating a file name to save articles in article format.
653 The function is called with NEWSGROUP, HEADERS, and optional
654 LAST-FILE."
661 "Variable used to suggest where articles are to be saved.
662 For instance, if you would like to save articles related to Gnus in
664 you could set this variable to something like:
669 This variable is an alist where the key is the match and the
670 value is a list of possible files to save in if the match is
671 non-nil.
673 If the match is a string, it is used as a regexp match on the
674 article. If the match is a symbol, that symbol will be funcalled
675 from the buffer of the article to be saved with the newsgroup as the
676 parameter. If it is a list, it will be evalled in the same buffer.
678 If this form or function returns a string, this string will be used as a
679 possible file name; and if it returns a non-nil list, that list will be
680 used as possible file names."
687 "Regexp describing what to use as article page delimiters.
689 beginning of a line."
694 "The format specification for the article mode line.
695 See `gnus-summary-mode-line-format' for a closer description.
697 The following additional specs are available:
699 %w The article washing status.
700 %m The number of MIME parts in the article."
706 "A hook for Gnus article mode."
711 "Hook run after the creation of the article mode menu."
716 "A hook called after an article has been prepared in the article buffer."
721 "List of headers to be removed when copying an article.
722 Each element is a regular expression."
732 "Face used for highlighting a button in the article buffer."
736 "Face used for highlighting buttons in the article buffer.
738 An article button is a piece of text that you can activate by pressing
739 `RET' or `mouse-2' above it."
744 "Face used for mouse highlighting in the article buffer.
746 Article buttons will be displayed in this face when the cursor is
747 above them."
752 "Face used for highlighting a signature in the article buffer.
753 Obsolete; use the face `gnus-signature' for customizations instead."
761 "Face used for highlighting a signature in the article buffer."
764 ;; backward-compatibility alias
777 "Face used for displaying from headers."
780 ;; backward-compatibility alias
793 "Face used for displaying subject headers."
796 ;; backward-compatibility alias
809 "Face used for displaying newsgroups headers.
810 In the default setup this face is only used for crossposted
811 articles."
814 ;; backward-compatibility alias
827 "Face used for displaying header names."
830 ;; backward-compatibility alias
845 ;; backward-compatibility alias
854 "Controls highlighting of article headers.
856 An alist of the form (HEADER NAME CONTENT).
858 HEADER is a regular expression which should match the name of a
859 header and NAME and CONTENT are either face names or nil.
861 The name of each header field will be displayed using the face
862 specified by the first element in the list where HEADER matches
863 the header name and NAME is non-nil. Similarly, the content will
864 be displayed by the first non-nil matching CONTENT face."
877 "Alist of image types and properties applied to Face and X-Face images.
878 Here are examples:
880 ;; Specify the altitude of Face images in the From header.
881 \(setq gnus-face-properties-alist
883 (png . (:ascent 80))))
885 ;; Show Face images as pressed buttons.
886 \(setq gnus-face-properties-alist
888 (png . (:relief -2))))
890 See the manual for the valid properties for various image types.
891 Currently, `pbm' is used for X-Face images and `png' is used for Face
892 images in Emacs."
899 article-decode-group-name article-decode-idna-rhs)
900 "Hook run to decode charsets in articles."
905 "Function to display MIME articles."
938 "List of MIME types that should be ignored by Gnus."
944 "List of MIME types that should not be given buttons when rendered inline.
945 See also `gnus-buttonized-mime-types' which may override this variable.
946 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
952 "List of MIME types that should be given buttons when rendered inline.
953 If set, this variable overrides `gnus-unbuttonized-mime-types'.
954 To see e.g. security buttons you could set this to
956 this list to display radio buttons that allow you to choose one of two
957 media types those mails include. See also `mm-discouraged-alternatives'.
958 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
964 "If non-nil, all MIME parts get buttons.
965 When nil (the default value), then some MIME parts do not get buttons,
966 as described by the variables `gnus-buttonized-mime-types' and
967 `gnus-unbuttonized-mime-types'."
973 "String used to delimit header and body.
974 This variable is used by `gnus-article-treat-body-boundary' which can
975 be controlled by `gnus-treat-body-boundary'."
979 string))
983 "Defines the location of the faces database.
984 For information on obtaining this database of pretty pictures, please
985 see http://www.cs.indiana.edu/picons/ftp/index.html"
994 "Say whether picons are installed on your machine."
999 installed))
1002 "Function called with a MIME handle as the argument.
1003 This is meant for people who want to do something automatic based
1004 on parts -- for instance, adding Vcard info to a database."
1007 function))
1010 "An alist of MIME types to functions to display them."
1016 "A list of Date header formats to display.
1017 Valid formats are `ut' (Universal Time), `local' (local time
1018 zone), `english' (readable English), `lapsed' (elapsed time),
1019 `combined-lapsed' (both the original date and the elapsed time),
1020 `original' (the original date header), `iso8601' (ISO8601
1021 format), and `user-defined' (a user-defined format defined by the
1022 `gnus-article-time-format' variable).
1024 You have as many date headers as you want in the article buffer.
1025 Some of these headers are updated automatically. See
1026 `gnus-article-update-date-headers' for details."
1040 "A number that says how often to update the date header (in seconds).
1041 If nil, don't update it at all."
1046 integer))
1049 "Function called with a MIME handle as the argument.
1050 This is meant for people who want to view first matched part.
1051 For `undisplayed-alternative' (default), the first undisplayed
1052 part or alternative part is used. For `undisplayed', the first
1053 undisplayed part is used. For a function, the first part which
1054 the function return t is used. For nil, the first part is
1055 used."
1078 "An alist of actions that run on the MIME attachment."
1084 "Advance to next MIME part when deleting or stripping parts.
1086 When 0, point will be placed on the same part as before. When
1087 positive (negative), move point forward (backwards) this many
1088 parts. When nil, redisplay article."
1094 integer))
1096 ;;;
1097 ;;; The treatment variables
1098 ;;;
1125 "Highlight the signature.
1126 Valid values are nil, t, `head', `first', `last', an integer or a
1127 predicate. See Info node `(gnus)Customizing Articles'."
1134 "Add buttons.
1135 Valid values are nil, t, `head', `first', `last', an integer or a
1136 predicate. See Info node `(gnus)Customizing Articles'."
1143 "Add buttons to the head.
1144 Valid values are nil, t, `head', `first', `last', an integer or a
1145 predicate. See Info node `(gnus)Customizing Articles'."
1152 "Display dates according to the `gnus-article-date-headers' variable.
1153 Valid values are nil, t, `head', `first', `last', an integer or a
1154 predicate. See Info node `(gnus)Customizing Articles'."
1161 "Emphasize text.
1162 Valid values are nil, t, `head', `first', `last', an integer or a
1163 predicate. See Info node `(gnus)Customizing Articles'."
1170 "Remove carriage returns.
1171 Valid values are nil, t, `head', `first', `last', an integer or a
1172 predicate. See Info node `(gnus)Customizing Articles'."
1179 "Remove newlines from within URLs.
1180 Valid values are nil, t, `head', `first', `last', an integer or a
1181 predicate. See Info node `(gnus)Customizing Articles'."
1188 "Remove leading whitespace in headers.
1189 Valid values are nil, t, `head', `first', `last', an integer or a
1190 predicate. See Info node `(gnus)Customizing Articles'."
1197 "Hide headers.
1198 Valid values are nil, t, `head', `first', `last', an integer or a
1199 predicate. See Info node `(gnus)Customizing Articles'."
1205 "Hide boring headers.
1206 Valid values are nil, t, `head', `first', `last', an integer or a
1207 predicate. See Info node `(gnus)Customizing Articles'."
1213 "Hide the signature.
1214 Valid values are nil, t, `head', `first', `last', an integer or a
1215 predicate. See Info node `(gnus)Customizing Articles'."
1221 "Fill the article.
1222 Valid values are nil, t, `head', `first', `last', an integer or a
1223 predicate. See Info node `(gnus)Customizing Articles'."
1229 "Hide cited text.
1230 Valid values are nil, t, `head', `first', `last', an integer or a
1231 predicate. See Info node `(gnus)Customizing Articles'.
1233 See `gnus-article-highlight-citation' for variables used to
1234 control what it hides."
1240 "Hide cited text according to certain conditions.
1241 Valid values are nil, t, `head', `first', `last', an integer or a
1242 predicate. See Info node `(gnus)Customizing Articles'.
1244 See `gnus-cite-hide-percentage' and `gnus-cite-hide-absolute' for
1245 how to control what it hides."
1251 "Strip list identifiers from `gnus-list-identifiers'.
1252 Valid values are nil, t, `head', `first', `last', an integer or a
1253 predicate. See Info node `(gnus)Customizing Articles'."
1260 list-identifier
1261 :variable-document
1262 "Alist of regexps and correspondent identifiers."
1263 :variable-group gnus-article-washing
1264 :parameter-type
1266 :value nil
1268 regexp
1270 :parameter-document
1271 "If non-nil, specify how to remove `identifiers' from articles' subject.
1273 Any symbol is used to look up a regular expression to match the
1274 banner in `gnus-list-identifiers'. A string is used as a regular
1281 "Strip PEM signatures.
1282 Valid values are nil, t, `head', `first', `last', an integer or a
1283 predicate. See Info node `(gnus)Customizing Articles'."
1289 "Strip banners from articles.
1290 The banner to be stripped is specified in the `banner' group parameter.
1291 Valid values are nil, t, `head', `first', `last', an integer or a
1292 predicate. See Info node `(gnus)Customizing Articles'."
1298 "Highlight the headers.
1299 Valid values are nil, t, `head', `first', `last', an integer or a
1300 predicate. See Info node `(gnus)Customizing Articles'."
1307 "Highlight cited text.
1308 Valid values are nil, t, `head', `first', `last', an integer or a
1309 predicate. See Info node `(gnus)Customizing Articles'."
1316 "Strip the X-No-Archive header line from the beginning of the body.
1317 Valid values are nil, t, `head', `first', `last', an integer or a
1318 predicate. See Info node `(gnus)Customizing Articles'."
1325 "Strip trailing blank lines.
1326 Valid values are nil, t, `head', `first', `last', an integer or a
1327 predicate. See Info node `(gnus)Customizing Articles'.
1329 When set to t, it also strips trailing blanks in all MIME parts.
1330 Consider to use `last' instead."
1336 "Strip leading blank lines.
1337 Valid values are nil, t, `head', `first', `last', an integer or a
1338 predicate. See Info node `(gnus)Customizing Articles'.
1340 When set to t, it also strips trailing blanks in all MIME parts."
1346 "Strip multiple blank lines.
1347 Valid values are nil, t, `head', `first', `last', an integer or a
1348 predicate. See Info node `(gnus)Customizing Articles'."
1354 "Unfold folded header lines.
1355 Valid values are nil, t, `head', `first', `last', an integer or a
1356 predicate. See Info node `(gnus)Customizing Articles'."
1363 "If non-nil, allow unfolding headers even if the header is long.
1364 If it is a regexp, only long headers matching this regexp are unfolded.
1365 If it is t, all long headers are unfolded.
1367 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1375 "Fold headers.
1376 Valid values are nil, t, `head', `first', `last', an integer or a
1377 predicate. See Info node `(gnus)Customizing Articles'."
1384 "Fold the Newsgroups and Followup-To headers.
1385 Valid values are nil, t, `head', `first', `last', an integer or a
1386 predicate. See Info node `(gnus)Customizing Articles'."
1393 "Treat overstrike highlighting.
1394 Valid values are nil, t, `head', `first', `last', an integer or a
1395 predicate. See Info node `(gnus)Customizing Articles'."
1402 "Treat ANSI SGR control sequences.
1403 Valid values are nil, t, `head', `first', `last', an integer or a
1404 predicate. See Info node `(gnus)Customizing Articles'."
1418 ;; shell-command-to-string may signal an error, e.g. if
1419 ;; shell-file-name is not found.
1422 "Display X-Face headers.
1423 Valid values are nil and `head'.
1424 See Info node `(gnus)Customizing Articles' and Info node
1425 `(gnus)X-Face' for details."
1430 :type gnus-article-treat-head-custom
1433 symbol
1435 value)
1438 ** gnus-treat-display-xface is an obsolete variable;\
1443 ** gnus-treat-display-xface is an obsolete variable;\
1447 value)))))
1454 "Display Face headers.
1455 Valid values are nil, t, `head', `first', `last', an integer or a
1456 predicate. See Info node `(gnus)Customizing Articles' and Info
1457 node `(gnus)Face' for details."
1466 "Display smileys.
1467 Valid values are nil, t, `head', `first', `last', an integer or a
1468 predicate. See Info node `(gnus)Customizing Articles' and Info
1469 node `(gnus)Smileys' for details."
1481 "Display picons in the From header.
1482 Valid values are nil, t, `head', `first', `last', an integer or a
1483 predicate. See Info node `(gnus)Customizing Articles' and Info
1484 node `(gnus)Picons' for details."
1497 "Display picons in To and Cc headers.
1498 Valid values are nil, t, `head', `first', `last', an integer or a
1499 predicate. See Info node `(gnus)Customizing Articles' and Info
1500 node `(gnus)Picons' for details."
1513 "Display picons in the Newsgroups and Followup-To headers.
1514 Valid values are nil, t, `head', `first', `last', an integer or a
1515 predicate. See Info node `(gnus)Customizing Articles' and Info
1516 node `(gnus)Picons' for details."
1526 "Display gravatars in the From header.
1527 Valid values are nil, t, `head', `first', `last', an integer or a
1528 predicate. See Info node `(gnus)Customizing Articles' and Info
1529 node `(gnus)Gravatars' for details."
1539 "Display gravatars in To and Cc headers.
1540 Valid values are nil, t, `head', `first', `last', an integer or a
1541 predicate. See Info node `(gnus)Customizing Articles' and Info
1542 node `(gnus)Gravatars' for details."
1553 gnus-treat-mail-picon
1554 gnus-treat-from-picon
1555 gnus-treat-from-gravatar
1556 gnus-treat-mail-gravatar)
1557 ;; If there's much decoration, the user might prefer a boundary.
1558 'head
1559 nil)
1560 "Draw a boundary at the end of the headers.
1561 Valid values are nil and `head'.
1562 See Info node `(gnus)Customizing Articles' for details."
1569 "Capitalize sentence-starting words.
1570 Valid values are nil, t, `head', `first', `last', an integer or a
1571 predicate. See Info node `(gnus)Customizing Articles'."
1578 "Format as HTML.
1579 Valid values are nil, t, `head', `first', `last', an integer or a
1580 predicate. See Info node `(gnus)Customizing Articles'."
1587 "Fill long lines.
1588 Valid values are nil, t, `head', `first', `last', an integer or a
1589 predicate. See Info node `(gnus)Customizing Articles'."
1596 "Verify X-PGP-Sig.
1597 To automatically treat X-PGP-Sig, set it to head.
1598 Valid values are nil, t, `head', `first', `last', an integer or a
1599 predicate. See Info node `(gnus)Customizing Articles'."
1609 ;; Set to nil if more than one protocol added to
1610 ;; gnus-article-encrypt-protocol-alist.
1612 "The protocol used for encrypt articles.
1619 "Whether IDNA decoding of headers is used when viewing messages."
1625 "If non-nil, allow scrolling the article buffer even when there no more text."
1631 "Non-nil means inhibit displaying of images inline in the article body."
1637 "Images that have URLs matching this regexp will be blocked.
1638 This can also be a function to be evaluated. If so, it will be
1639 called with the group name as the parameter, and should return a
1640 regexp."
1647 ;;; Internal variables
1686 gnus-article-remove-trailing-blank-lines)
1688 gnus-article-strip-leading-blank-lines)
1690 gnus-article-strip-multiple-blank-lines)
1712 ;; This causes the citation match run O(2^n).
1713 ;; (modify-syntax-entry ?- "w" table)
1716 ;; make M-. in article buffers work for `foo' strings
1719 table)
1720 "Syntax table used in article mode buffers.
1731 ;;; Macros for dealing with the article buffer.
1755 "Go to HEADER, which is a regular expression."
1759 "Set text PROPS on the B to E region."
1763 "Remove hidden text properties from region between B and E."
1767 "Hide text of TYPE between B and E."
1773 "Unhide text of TYPE between B and E."
1779 "Delete text of TYPE in the current buffer."
1783 ;; Remove MIME buttons associated with multipart/alternative parts.
1791 t))
1802 "Delete all invisible text in the current buffer."
1811 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1819 i))
1822 "Hide unwanted headers and possibly sort them as well."
1824 ;; This function might be inhibited.
1831 ignored visible beg)
1833 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1834 ;; group parameters, so we should go to the summary buffer.
1841 gnus-ignored-headers)
1844 gnus-ignored-headers
1847 gnus-visible-headers)
1851 gnus-visible-headers
1855 ;; First we narrow to just the headers.
1857 ;; Hide any "From " lines at the beginning of (mail) articles.
1862 ;; Then treat the rest of the header lines.
1863 ;; Then we use the two regular expressions
1864 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1865 ;; select which header lines is to remain visible in the
1866 ;; article buffer.
1869 ;; Mark the rank of the header.
1881 ;; We delete the unwanted headers.
1888 "Toggle hiding of headers that aren't very interesting.
1889 If given a negative prefix, always show; if given a positive prefix,
1890 always hide."
1902 ;; Hide empty headers.
1914 ;; Hide boring Newsgroups header.
1920 gnus-newsgroup-name
1932 ;; only one address in To
1934 to-address)))
1945 ;; only one address in To
1947 to-list)))
1958 ;; only one address in CC
1960 to-list)))
1975 from reply-to
1989 ;; If date in `gnus-article-buffer' is localized
1990 ;; (`gnus-treat-date-user-defined'),
1991 ;; `days-between' might fail.
2049 "Make all header lines 40 characters long."
2052 column)
2059 gnus-article-normalized-header-length)
2063 ? )))
2072 ;; Do nothing.
2073 ))
2077 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2078 Note that this function guesses whether a character is a sm*rtq**t* or
2079 not, so it should only be used interactively.
2081 Sm*rtq**t*s are M****s***'s unilateral extension to the
2082 iso-8859-1 character map in an attempt to provide more quoting
2084 you're expecting some kind of apostrophe or quotation mark, then
2085 try this wash."
2092 "Translate many Unicode characters into their ASCII equivalents."
2103 replace props)
2111 props)
2115 "Translate all string in the body of the article according to MAP.
2135 "Translate overstrikes into bold text."
2143 ;; We do the boldification/underlining by hiding the
2144 ;; overstrikes and putting the proper text property
2145 ;; on the letters.
2161 "Translate ANSI SGR control sequences into overlays or extents."
2169 "Unfold folded message headers.
2170 Only the headers that fit into the current window width will be
2171 unfolded."
2183 header)))))
2197 "Fold message headers."
2220 "Remove all images from the article buffer."
2231 "Show any images that are in the HTML-rendered article buffer.
2232 This only works if the article in question is HTML."
2243 start end)))))))
2246 "Unfold folded message headers.
2247 Only the headers that fit into the current window width will be
2248 unfolded."
2260 "Value of `truncate-lines' in Gnus Article buffer.
2261 Valid values are nil, t, `head', `first', `last', an integer or a
2262 predicate. See Info node `(gnus)Customizing Articles'."
2265 ;; :link '(custom-manual "(gnus)Customizing Articles")
2269 "Toggle whether to fold or truncate long lines in article the buffer.
2270 If ARG is non-nil and not a number, toggle
2271 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2272 long lines if and only if arg is positive."
2291 "Place a boundary line at the end of the headers."
2308 "Fill lines that are wider than the window width."
2328 "Capitalize the first word in each sentence."
2339 "Remove trailing CRs and then translate remaining CRs into LFs."
2351 "Remove all trailing blank lines from the article."
2370 "Display any Face headers in the header."
2374 ;; When displaying parts, this function can be called several times on
2375 ;; the same article, without any intended toggle semantic (as typing `W
2376 ;; D d' would have). So face deletion must occur only when we come from
2377 ;; an interactive command, that is when the *Article* buffer is
2378 ;; read-only.
2382 faces)
2391 ;; Check whether this face is censored.
2396 from))))
2418 "Look for an X-Face header and display it if present."
2422 ;; Delete the old process, if any.
2425 ;; See the comment in `article-display-face'.
2427 ;; We have already displayed X-Faces, so we remove them
2428 ;; instead.
2430 ;; Display X-Faces.
2432 x-faces)
2437 ;; If type `W f', use gnus-original-article-buffer,
2438 ;; otherwise use the current buffer because displaying
2439 ;; RFC822 parts calls this function too.
2445 ;; Check whether this face is censored.
2450 from))))
2454 ;; We display the face.
2456 ;; The command is a lisp function, so we call it.
2459 ;; The command is a string, so we interpret the command
2460 ;; as a, well, command, and fork it off.
2464 "article-x-face" nil shell-file-name
2465 shell-command-switch gnus-article-x-face-command)
2466 nil)
2467 ;; Sending multiple EOFs to xv doesn't work,
2468 ;; so we only do a single external face.
2476 gnus-article-x-face-command
2480 "Decode all MIME-encoded words in the article."
2487 gnus-newsgroup-ignored-charsets)))
2491 "Decode charset-encoded text in the article.
2492 If PROMPT (the prefix), prompt for a coding system to use."
2501 gnus-newsgroup-ignored-charsets))
2502 ct cte ctl charset format)
2525 ;; The text code could have been decoded.
2535 "Remove encoded-word encoding from headers."
2542 gnus-newsgroup-ignored-charsets))
2544 end start)
2563 "Decode group names in Newsgroups, Followup-To and Xref headers."
2567 regexp)
2569 gnus-group-name-charset-group-alist)
2581 ;; XXX how to use data in article buffer?
2585 gnus-newsgroup-name method))
2590 "Decode IDNA strings in RHS in various headers in current buffer.
2591 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2592 Mail-Reply-To: and Mail-Followup-To:."
2611 "Translate a quoted-printable-encoded article.
2612 If FORCE, decode the article whether it is marked as quoted-printable
2613 or not.
2614 If READ-CHARSET, ask for a coding system."
2640 "Translate a base64 article.
2641 If FORCE, decode the article whether it is marked as base64 not.
2642 If READ-CHARSET, ask for a coding system."
2674 "Translate a HZ-encoded article."
2682 "Remove the newlines that some other mailers insert into URLs."
2694 "Format an HTML article."
2707 "List of temporary files created by `gnus-article-browse-html-parts'.
2711 "What to do with temporary files from `gnus-article-browse-html-parts'.
2712 If nil, don't delete temporary files. If it is t, delete them on
2713 exit from the summary buffer. If it is the symbol `file', query
2714 on each file, if it is `ask' ask once when exiting from the
2715 summary buffer."
2723 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2726 "Delete temp-files created by `gnus-article-browse-html-parts'."
2734 "Delete the temporary HTML file? "
2736 files)))
2738 how)))
2744 "Delete temporary HTML file(s) in directory `%s'? "
2752 ;; Also remove file from the list when not deleted or if file doesn't
2753 ;; exist anymore.
2755 gnus-article-browse-html-temp-list)
2758 "Find CID content in HANDLES and save it in a file in DIRECTORY.
2759 Return file name relative to the parent of DIRECTORY."
2766 ;; Exclude broken handles that `gnus-summary-enter-digest-group'
2767 ;; may create.
2771 cid handle directory))
2778 mailcap-mime-extensions))))
2787 Recurse into multiparts. The optional HEADER that should be a decoded
2789 ;; Internal function used by `gnus-article-browse-html-article'.
2791 ;; Find and show the html-parts.
2793 ;; If HTML, show it:
2805 nil)))
2817 ;; resolve cid contents
2819 st base regexp cid-file)
2840 base))
2847 nil t)
2852 content nil)
2857 gnus-article-mime-handles)
2858 cid-dir))
2863 ;; Do we need to care for 8.3 filenames?
2865 ;; Add a meta html tag to specify charset and a header.
2876 nil t)
2892 ;; We have to examine charset one by one since
2893 ;; charset specified in parts might be different.
2897 charset)
2906 hcharset nil t)))
2909 coding hcharset)))
2915 nil t))
2921 title coding))
2922 body content)
2928 title charset))
2931 content body)
2932 charset))))
2938 title coding))
2939 body content))
2941 body content)))
2965 content))
2980 ;; FIXME: Warn if there's an <img> tag?
2983 ;; If multipart, recurse
2998 gnus-visible-headers)))
3008 showed))
3012 Inline images embedded in a message using the cid scheme, as they are
3013 generally considered to be safe, will be processed properly.
3014 The message header is added to the beginning of every html part unless
3015 the prefix argument ARG is given.
3017 Warning: Spammers use links to images (using the http scheme) in HTML
3018 articles to verify whether you have read the message. As
3019 `gnus-article-browse-html-article' passes the HTML content to the
3021 use it for mails from trusted senders.
3023 If you always want to display HTML parts in the browser, set
3024 `mm-text-html-renderer' to nil.
3026 This command creates temporary files to pass HTML contents including
3027 images if any to the browser, and deletes them when exiting the group
3028 \(if you want)."
3029 ;; Cf. `mm-w3m-safe-url-regexp'
3034 gnus-visible-headers))
3035 ;; As we insert a <hr>, there's no need for the body boundary.
3049 parts)
3052 ;; If singlepart, enforce a list.
3056 ;; Process the list
3064 "Remove list identifiers from the Subject header.
3065 The `gnus-list-identifiers' variable specifies what to do."
3077 nil t)
3085 "Toggle hiding of any PEM headers and signatures in the current article.
3086 If given a negative prefix, always show; if given a positive prefix,
3087 always hide."
3093 ;; Hide the horrendously ugly "header".
3096 nil t)
3100 end
3105 ;; Hide the trailer as well
3107 nil t)
3112 "Strip the banners specified by the `banner' group parameter and by
3113 `gnus-article-address-banner-alist'."
3122 ;; Note that the From header is decoded here, so it is
3123 ;; required that the *-extract-address-components function
3124 ;; supports non-ASCII text.
3132 from))))
3140 "Strip the banner specified by the argument."
3162 "Translate article using an online translation service."
3177 "Hide the signature in the current article.
3178 If given a negative prefix, always show; if given a positive prefix,
3179 always hide."
3191 "Strip offensive headers from bodies."
3200 "Remove all blank lines from the beginning of the article."
3211 "Narrow the buffer to the head of the message.
3212 Point is left at the beginning of the narrowed-to region."
3216 ;; Absolutely no headers displayed.
3219 ;; Normal headers.
3222 ;; Nothing but headers.
3228 "Place point at the start of the body."
3231 ;; This variable is only bound when dealing with separate
3232 ;; MIME body parts.
3234 t)
3236 t)
3239 nil)))
3242 "Replace consecutive blank lines with one empty line."
3247 ;; First make all blank lines empty.
3253 ;; Then replace multiple empty lines with a single empty line.
3261 "Remove all white space from the beginning of the lines in the article."
3271 "Remove all white space from the end of the lines in the article."
3281 "Strip leading, trailing and multiple blank lines."
3288 "Strip all blank lines."
3298 "Narrow to the signature; return t if a signature is found, else nil."
3302 ;; Check whether we have some limits to what we consider
3303 ;; to be a signature.
3306 limit limited)
3318 limits nil)))
3321 t)))))
3324 "Search the current buffer for the signature separator.
3325 Put point at the beginning of the signature separator."
3334 seps))
3335 t
3337 nil)))
3340 "Return the current prefix arg as a number, or 0 if no prefix."
3346 "Return nil if hiding is necessary.
3347 Arg can be nil or a number. nil and positive means hide, negative
3348 means show, 0 means toggle."
3355 nil)
3358 t)
3363 t)
3364 nil)))))))
3367 "Say whether the current buffer contains hidden text of type TYPE."
3375 'hidden
3376 nil)))
3379 "Show all hidden text of type TYPE.
3380 Originally it is hide instead of DUMMY."
3384 'article-type type
3387 gnus-hidden-properties)))
3400 "Move point to the start of the next header.
3401 If the current header is a continuation header, this can be several
3402 lines forward."
3413 gnus-article-date-headers)
3414 gnus-article-date-headers)
3415 t))
3418 "Convert DATE date to TYPE in the current article.
3419 The default type is `ut'. See `gnus-article-date-headers' for
3420 possible values."
3426 pos date bface eface)
3471 visible-date)
3485 type)))
3495 ;; Do highlighting.
3507 "Return a DATE line of TYPE."
3509 combined-lapsed))
3514 ;; Convert to the local timezone.
3517 ;; Convert to Universal Time.
3531 ;; Get the original date from the article.
3535 date)))
3536 ;; Let the user define the format.
3540 gnus-article-time-format)
3542 gnus-article-time-format)))
3546 ;; ISO 8601.
3550 "Date: "
3555 ;; Do a lapsed format.
3558 ;; A combined date/lapsed format.
3562 lapsed-string)
3564 time
3574 date-string)))
3575 ;; Display the date in proper English
3579 "Date: the "
3588 " of "
3590 " "
3592 " at "
3594 ":"
3600 ;; If the date is seriously mangled, the timezone functions are
3601 ;; liable to bug out, so we ignore all errors.
3609 num prev)
3619 ;; This is a bit convoluted, but basically we go
3620 ;; through the time units for years, weeks, etc,
3621 ;; and divide things to see whether that results
3622 ;; in positive answers.
3627 ;; The (remaining) seconds are too few to
3628 ;; be divided into this time unit.
3629 ""
3630 ;; It's big enough, so we output it.
3640 ;; If dates are odd, then it might appear like the
3641 ;; article was sent in the future.
3643 " ago"
3647 "Convert the current article date to the local timezone."
3652 "Convert the current article date to something that is proper English."
3657 "Convert the current article date to what it was originally.
3658 This is only useful if you have used some other date conversion
3659 function and want to see what the date was before converting."
3664 "Convert the current article date to time lapsed since it was sent."
3669 "Convert the current article date to time lapsed since it was sent."
3674 "Function to be run from a timer to update the lapsed time line."
3686 type next end)
3716 "Start a timer to update the Date headers in the article buffers.
3717 The numerical prefix says how frequently (in seconds) the function
3718 is to run."
3727 "Stop the Date timer."
3734 "Convert the current article date to the user-defined format.
3735 This format is defined by the `gnus-article-time-format' variable."
3740 "Convert the current article date to ISO8601."
3745 "Save the original date as a text property and evaluate FORMS."
3754 nil t))
3760 ,@forms
3765 ;; (defun article-show-all ()
3766 ;; "Show all hidden text in the article buffer."
3767 ;; (interactive)
3768 ;; (save-excursion
3769 ;; (let ((inhibit-read-only t))
3770 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3773 "Remove excessive whitespace from all headers."
3784 "Emphasize text according to `gnus-emphasis-alist'."
3791 gnus-article-emphasis-alist)
3793 gnus-emphasis-alist))
3796 gnus-hidden-properties))
3797 regexp elem beg invisible visible face)
3818 "Setup newsgroup emphasis alist."
3830 highlight)
3835 gnus-emphasis-alist)))))
3840 ;;; Saving functions.
3843 "Save the currently selected article."
3846 ;; Remove headers according to `gnus-saved-headers' or the value
3847 ;; of the `:headers' property that the saver function might have.
3850 gnus-saved-headers gnus-visible-headers))
3851 ;; Ignore group parameter. See `article-hide-headers'.
3858 ;; !!! Magic! The saving functions all save
3859 ;; `gnus-save-article-buffer' (or so they think), but we
3860 ;; bind that variable to our save-buffer.
3875 function group headers variable
3876 dir-var)
3879 result)
3884 default-name)
3886 default-name)
3899 gnus-number-of-articles-to-be-saved)
3902 ;; Let the split methods have their say.
3904 ;; No split name was found.
3910 default-name))
3911 ;; A single group name is returned.
3920 default-name))
3921 ;; A single split name was found
3925 gnus-article-save-directory))
3932 dir name)))
3933 ;; A list of splits was found.
3943 gnus-article-save-directory
3945 gnus-article-save-directory)))
3947 ;; Create the directory.
3949 ;; If we have read a directory, we append the default file name.
3952 default-name)
3954 ;; Possibly translate some characters.
3961 result))
3971 "If GROUP is an nndoc group, return the name of the parent group."
3976 "Append this article to Rmail file.
3977 Optional argument FILENAME specifies file name.
3978 Directory to save to is default to `gnus-article-save-directory'."
3980 "Save %s in rmail file" filename
3981 gnus-rmail-save-name gnus-newsgroup-name
3987 ;; Note that unlike gnus-summary-save-in-mail, there is no
3988 ;; check to see if filename is Babyl. Rmail in Emacs 23 does
3989 ;; not use Babyl.
3991 filename)
3994 "Append this article to Unix mail file.
3995 Optional argument FILENAME specifies file name.
3996 Directory to save to is default to `gnus-article-save-directory'."
3998 "Save %s in Unix mail file" filename
3999 gnus-mail-save-name gnus-newsgroup-name
4010 filename)
4015 "Append this article to file.
4016 Optional argument FILENAME specifies file name.
4017 Directory to save to is default to `gnus-article-save-directory'."
4019 "Save %s in file" filename
4020 gnus-file-save-name gnus-newsgroup-name
4030 filename)
4036 "Write this article to a file, overwriting it if the file exists.
4037 Optional argument FILENAME specifies file name.
4038 The directory to save in defaults to `gnus-article-save-directory'."
4040 "Save %s in file" filename
4041 gnus-file-save-name gnus-newsgroup-name
4047 "Append this article body to a file.
4048 Optional argument FILENAME specifies file name.
4049 The directory to save in defaults to `gnus-article-save-directory'."
4051 "Save %s body in file" filename
4052 gnus-file-save-name gnus-newsgroup-name
4064 filename)
4070 "Write this article body to a file, overwriting it if the file exists.
4071 Optional argument FILENAME specifies file name.
4072 The directory to save in defaults to `gnus-article-save-directory'."
4074 "Save %s body in file" filename
4075 gnus-file-save-name gnus-newsgroup-name
4082 "Pipe this article to subprocess COMMAND.
4083 Valid values for COMMAND include:
4084 a string
4085 The executable command name and possibly arguments.
4086 nil
4087 You will be prompted for the command in the minibuffer.
4088 the symbol `default'
4089 It will be replaced with the command which the variable
4090 `gnus-summary-pipe-output-default-command' holds or the command
4091 last used for saving.
4092 Non-nil value for RAW overrides `:decode' and `:headers' properties
4093 and the raw article including all headers will be piped."
4097 save-buffer default)
4105 gnus-article-buffer
4106 gnus-original-article-buffer)
4109 ;; Remove unwanted headers.
4116 gnus-saved-headers gnus-visible-headers))
4122 gnus-last-shell-command))
4126 default
4140 "Pipe this article to muttprint."
4143 "Print using command: " gnus-summary-muttprint-program
4144 nil gnus-summary-muttprint-program)))
4146 gnus-summary-pipe-output-default-command))
4150 ;;; Article file names when saving.
4153 "Capitalize NEWSGROUP name."
4159 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4160 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
4161 Otherwise, it is like ~/News/news/group/num."
4168 gnus-article-save-directory)))
4173 default
4177 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4178 If variable `gnus-use-long-file-name' is non-nil, it is
4179 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4183 newsgroup
4186 gnus-article-save-directory)))
4191 default
4195 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4196 If variable `gnus-use-long-file-name' is non-nil, it is
4197 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4201 newsgroup
4204 default-directory))
4205 gnus-article-save-directory)))
4208 "Generate file name from sender."
4214 gnus-article-save-directory)))
4217 "Verify X-PGP-Sig."
4218 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4223 items info headers)
4225 mml2015-use
4233 ;; Don't verify multiple headers.
4283 ;; Do highlighting.
4292 "Verify Cancel-Lock header."
4316 article-verify-x-pgp-sig
4317 article-verify-cancel-lock
4318 article-hide-boring-headers
4319 article-treat-overstrike
4320 article-treat-ansi-sequences
4321 article-fill-long-lines
4322 article-capitalize-sentences
4323 article-remove-cr
4324 article-remove-leading-whitespace
4325 article-display-x-face
4326 article-display-face
4327 article-de-quoted-unreadable
4328 article-de-base64-unreadable
4329 article-decode-HZ
4330 article-wash-html
4331 article-unsplit-urls
4332 article-hide-list-identifiers
4333 article-strip-banner
4334 article-babel
4335 article-hide-pem
4336 article-hide-signature
4337 article-strip-headers-in-body
4338 article-remove-trailing-blank-lines
4339 article-strip-leading-blank-lines
4340 article-strip-multiple-blank-lines
4341 article-strip-leading-space
4342 article-strip-trailing-space
4343 article-strip-blank-lines
4344 article-strip-all-blank-lines
4345 article-date-local
4346 article-date-english
4347 article-date-iso8601
4348 article-date-original
4349 article-treat-date
4350 article-date-ut
4351 article-decode-mime-words
4352 article-decode-charset
4353 article-decode-encoded-words
4354 article-date-user
4355 article-date-lapsed
4356 article-date-combined-lapsed
4357 article-emphasize
4358 article-treat-dumbquotes
4359 article-treat-non-ascii
4360 article-normalize-headers
4361 ;;(article-show-all . gnus-article-show-all-headers)
4362 )))
4363 \f
4364 ;;;
4365 ;;; Gnus article mode
4366 ;;;
4373 " " gnus-article-goto-next-page
4376 [delete] gnus-article-goto-prev-page
4377 "\C-c^" gnus-article-refer-article
4378 "h" gnus-article-show-summary
4379 "s" gnus-article-show-summary
4380 "\C-c\C-m" gnus-article-mail
4381 "?" gnus-article-describe-briefly
4382 "<" beginning-of-buffer
4383 ">" end-of-buffer
4384 "\C-c\C-i" gnus-info-find-node
4385 "\C-c\C-b" gnus-bug
4386 "R" gnus-article-reply-with-original
4387 "F" gnus-article-followup-with-original
4388 "\C-hk" gnus-article-describe-key
4389 "\C-hc" gnus-article-describe-key-briefly
4390 "\C-hb" gnus-article-describe-bindings
4392 "e" gnus-article-read-summary-keys
4393 "\C-d" gnus-article-read-summary-keys
4394 "\M-*" gnus-article-read-summary-keys
4395 "\M-#" gnus-article-read-summary-keys
4396 "\M-^" gnus-article-read-summary-keys
4397 "\M-g" gnus-article-read-summary-keys)
4399 (substitute-key-definition
4400 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4402 (defvar gnus-article-send-map)
4403 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4404 "W" gnus-article-wide-reply-with-original
4405 [t] gnus-article-read-summary-send-keys)
4407 (defun gnus-article-make-menu-bar ()
4408 (unless (boundp 'gnus-article-commands-menu)
4409 (gnus-summary-make-menu-bar))
4410 (unless (boundp 'gnus-article-article-menu)
4411 (easy-menu-define
4412 gnus-article-article-menu gnus-article-mode-map ""
4413 '("Article"
4414 ["Scroll forwards" gnus-article-goto-next-page t]
4415 ["Scroll backwards" gnus-article-goto-prev-page t]
4416 ["Show summary" gnus-article-show-summary t]
4417 ["Fetch Message-ID at point" gnus-article-refer-article t]
4418 ["Mail to address at point" gnus-article-mail t]
4419 ["Send a bug report" gnus-bug t]))
4421 (easy-menu-define
4422 gnus-article-treatment-menu gnus-article-mode-map ""
4423 ;; Fixme: this should use :active (and maybe :visible).
4424 '("Treatment"
4425 ["Hide headers" gnus-article-hide-headers t]
4426 ["Hide signature" gnus-article-hide-signature t]
4427 ["Hide citation" gnus-article-hide-citation t]
4428 ["Treat overstrike" gnus-article-treat-overstrike t]
4429 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4430 ["Remove carriage return" gnus-article-remove-cr t]
4431 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4432 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4433 ["Remove base64" gnus-article-de-base64-unreadable t]
4434 ["Treat html" gnus-article-wash-html t]
4435 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4436 ["Decode HZ" gnus-article-decode-HZ t]))
4438 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4440 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4442 (gnus-run-hooks 'gnus-article-menu-hook)))
4444 (defvar bookmark-make-record-function)
4445 (defvar shr-put-image-function)
4447 (define-derived-mode gnus-article-mode fundamental-mode "Article"
4448 "Major mode for displaying an article.
4450 All normal editing commands are switched off.
4452 The following commands are available in addition to all summary mode
4453 commands:
4462 (gnus-simplify-mode-line)
4463 (make-local-variable 'minor-mode-alist)
4464 (when (gnus-visual-p 'article-menu 'menu)
4465 (gnus-article-make-menu-bar)
4466 (when gnus-summary-tool-bar-map
4467 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4468 (gnus-update-format-specifications nil 'article-mode)
4469 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4470 (set (make-local-variable 'gnus-page-broken) nil)
4471 (make-local-variable 'gnus-article-current-summary)
4472 (make-local-variable 'gnus-article-mime-handles)
4473 (make-local-variable 'gnus-article-decoded-p)
4474 (make-local-variable 'gnus-article-mime-handle-alist)
4475 (make-local-variable 'gnus-article-wash-types)
4476 (make-local-variable 'gnus-article-image-alist)
4477 (make-local-variable 'gnus-article-charset)
4478 (make-local-variable 'gnus-article-ignored-charsets)
4479 (set (make-local-variable 'bookmark-make-record-function)
4480 'gnus-summary-bookmark-make-record)
4481 ;; Prevent Emacs from displaying non-break space with
4482 ;; `nobreak-space' face.
4483 (set (make-local-variable 'nobreak-char-display) nil)
4484 ;; Enable `gnus-article-remove-images' to delete images shr.el renders.
4485 (set (make-local-variable 'shr-put-image-function) 'gnus-shr-put-image)
4486 (unless gnus-article-show-cursor
4487 (setq cursor-in-non-selected-windows nil))
4488 (gnus-set-default-directory)
4489 (buffer-disable-undo)
4490 (setq buffer-read-only t
4491 show-trailing-whitespace nil)
4492 (mm-enable-multibyte))
4494 (defun gnus-article-setup-buffer ()
4495 "Initialize the article buffer."
4496 (let* ((name (if gnus-single-article-buffer "*Article*"
4497 (concat "*Article "
4498 (gnus-group-decoded-name gnus-newsgroup-name)
4499 "*")))
4500 (original
4502 (concat " *Original Article"
4503 (substring name (match-end 0))))))
4504 (setq gnus-article-buffer name)
4505 (setq gnus-original-article-buffer original)
4506 (setq gnus-article-mime-handle-alist nil)
4507 (with-current-buffer gnus-summary-buffer
4508 ;; This might be a variable local to the summary buffer.
4509 (unless gnus-single-article-buffer
4510 (setq gnus-article-buffer name)
4511 (setq gnus-original-article-buffer original)
4512 (gnus-set-global-variables)))
4513 (gnus-article-setup-highlight-words)
4514 ;; Init original article buffer.
4515 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4516 (mm-enable-multibyte)
4517 (setq major-mode 'gnus-original-article-mode)
4518 (make-local-variable 'gnus-original-article))
4519 (if (and (get-buffer name)
4520 (with-current-buffer name
4521 (if gnus-article-edit-mode
4522 (if (y-or-n-p "Article mode edit in progress; discard? ")
4523 (progn
4524 (set-buffer-modified-p nil)
4525 (gnus-kill-buffer name)
4526 (message "")
4527 nil)
4528 (error "Action aborted"))
4529 t)))
4530 (let ((summary gnus-summary-buffer))
4531 (with-current-buffer name
4532 (set (make-local-variable 'gnus-article-edit-mode) nil)
4533 (gnus-article-stop-animations)
4534 (when gnus-article-mime-handles
4535 (mm-destroy-parts gnus-article-mime-handles)
4536 (setq gnus-article-mime-handles nil))
4537 ;; Set it to nil in article-buffer!
4538 (setq gnus-article-mime-handle-alist nil)
4539 (buffer-disable-undo)
4540 (setq buffer-read-only t)
4541 (unless (derived-mode-p 'gnus-article-mode)
4542 (gnus-article-mode))
4543 (set (make-local-variable 'gnus-summary-buffer) summary)
4544 (setq truncate-lines gnus-article-truncate-lines)
4545 (current-buffer)))
4546 (let ((summary gnus-summary-buffer))
4547 (with-current-buffer (gnus-get-buffer-create name)
4548 (gnus-article-mode)
4549 (setq truncate-lines gnus-article-truncate-lines)
4550 (set (make-local-variable 'gnus-summary-buffer) summary)
4551 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4552 (when article-lapsed-timer
4553 (gnus-stop-date-timer))
4554 (when gnus-article-update-date-headers
4555 (gnus-start-date-timer gnus-article-update-date-headers))
4556 (current-buffer))))))
4558 (defun gnus-article-stop-animations ()
4559 (dolist (timer (and (boundp 'timer-list)
4560 timer-list))
4561 (when (eq (timer--function timer) 'image-animate-timeout)
4562 (cancel-timer timer))))
4564 (defun gnus-stop-downloads ()
4565 (when (boundp 'url-queue)
4566 (set (intern "url-queue" obarray) nil)))
4568 ;; Set article window start at LINE, where LINE is the number of lines
4569 ;; from the head of the article.
4570 (defun gnus-article-set-window-start (&optional line)
4571 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4572 (when article-window
4573 (set-window-start
4574 article-window
4575 (with-current-buffer gnus-article-buffer
4576 (goto-char (point-min))
4577 (if (not line)
4578 (point-min)
4579 (gnus-message 6 "Moved to bookmark")
4581 (forward-line line)
4582 (point)))))))
4584 (defvar gnus-tmp-internal-hook)
4586 (defun gnus-article-prepare (article &optional all-headers _header)
4587 "Prepare ARTICLE in article mode buffer.
4588 ARTICLE should either be an article number or a Message-ID.
4589 If ARTICLE is an id, HEADER should be the article headers.
4590 If ALL-HEADERS is non-nil, no headers are hidden."
4591 (save-excursion ;FIXME: Shouldn't that be save-current-buffer?
4592 ;; Make sure we start in a summary buffer.
4593 (unless (derived-mode-p 'gnus-summary-mode)
4594 (set-buffer gnus-summary-buffer))
4595 (setq gnus-summary-buffer (current-buffer))
4596 (let* ((summary-buffer (current-buffer))
4597 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4598 (group gnus-newsgroup-name)
4599 result)
4600 (save-excursion
4601 (gnus-article-setup-buffer)
4602 (set-buffer gnus-article-buffer)
4603 ;; Deactivate active regions.
4604 (when transient-mark-mode
4605 (setq mark-active nil))
4606 (if (not (setq result (let ((inhibit-read-only t))
4607 (gnus-request-article-this-buffer
4608 article group))))
4609 ;; There is no such article.
4610 (save-excursion
4611 (when (and (numberp article)
4612 (not (memq article gnus-newsgroup-sparse)))
4613 (setq gnus-article-current
4614 (cons gnus-newsgroup-name article))
4615 (set-buffer gnus-summary-buffer)
4616 (setq gnus-current-article article)
4617 (if (and (memq article gnus-newsgroup-undownloaded)
4618 (not (gnus-online (gnus-find-method-for-group
4619 gnus-newsgroup-name))))
4620 (progn
4621 (gnus-summary-set-agent-mark article)
4622 (message "Message marked for downloading"))
4623 (gnus-summary-mark-article article gnus-canceled-mark)
4624 (unless (memq article gnus-newsgroup-sparse)
4625 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4626 (if (or (eq result 'pseudo)
4627 (eq result 'nneething))
4628 (progn
4629 (with-current-buffer summary-buffer
4630 (push article gnus-newsgroup-history)
4631 (setq gnus-last-article gnus-current-article
4632 gnus-current-article 0
4633 gnus-current-headers nil
4634 gnus-article-current nil)
4635 (if (eq result 'nneething)
4636 (gnus-configure-windows 'summary)
4637 (gnus-configure-windows 'article))
4638 (gnus-set-global-variables))
4639 (let ((gnus-article-mime-handle-alist-1
4640 gnus-article-mime-handle-alist))
4641 (gnus-set-mode-line 'article)))
4642 ;; The result from the `request' was an actual article -
4643 ;; or at least some text that is now displayed in the
4644 ;; article buffer.
4645 (when (and (numberp article)
4646 (not (eq article gnus-current-article)))
4647 ;; Seems like a new article has been selected.
4648 ;; `gnus-current-article' must be an article number.
4649 (with-current-buffer summary-buffer
4650 (push article gnus-newsgroup-history)
4651 (setq gnus-last-article gnus-current-article
4652 gnus-current-article article
4653 gnus-current-headers
4654 (gnus-summary-article-header gnus-current-article)
4655 gnus-article-current
4656 (cons gnus-newsgroup-name gnus-current-article))
4657 (unless (vectorp gnus-current-headers)
4658 (setq gnus-current-headers nil))
4659 (gnus-summary-goto-subject gnus-current-article)
4660 (when (gnus-summary-show-thread)
4661 ;; If the summary buffer really was folded, the
4662 ;; previous goto may not actually have gone to
4663 ;; the right article, but the thread root instead.
4664 ;; So we go again.
4665 (gnus-summary-goto-subject gnus-current-article))
4666 (gnus-run-hooks 'gnus-mark-article-hook)
4667 (gnus-set-mode-line 'summary)
4668 (when (gnus-visual-p 'article-highlight 'highlight)
4669 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4670 ;; Set the global newsgroup variables here.
4671 (gnus-set-global-variables)
4672 (setq gnus-have-all-headers
4673 (or all-headers gnus-show-all-headers))))
4674 (save-excursion
4675 (gnus-configure-windows 'article))
4676 (when (or (numberp article)
4677 (stringp article))
4678 (gnus-article-prepare-display)
4679 ;; Do page break.
4680 (goto-char (point-min))
4681 (when gnus-break-pages
4682 (gnus-narrow-to-page)))
4683 (let ((gnus-article-mime-handle-alist-1
4684 gnus-article-mime-handle-alist))
4685 (gnus-set-mode-line 'article))
4686 (article-goto-body)
4687 (unless (bobp)
4688 (forward-line -1))
4689 (set-window-point (get-buffer-window (current-buffer)) (point))
4690 (gnus-configure-windows 'article)
4691 (gnus-run-hooks 'gnus-article-prepare-hook)
4692 t))))))
4694 (defvar gnus-mime-display-attachment-buttons-in-header)
4696 ;;;###autoload
4697 (defun gnus-article-prepare-display ()
4698 "Make the current buffer look like a nice article."
4699 ;; Hooks for getting information from the article.
4700 ;; This hook must be called before being narrowed.
4701 (let ((gnus-article-buffer (current-buffer))
4702 buffer-read-only
4703 (inhibit-read-only t))
4704 (unless (derived-mode-p 'gnus-article-mode)
4705 (gnus-article-mode))
4706 (setq buffer-read-only nil
4707 gnus-article-wash-types nil
4708 gnus-article-image-alist nil)
4709 (gnus-run-hooks 'gnus-tmp-internal-hook)
4710 (when gnus-display-mime-function
4711 (funcall gnus-display-mime-function))
4712 ;; Add attachment buttons to the header.
4713 (when gnus-mime-display-attachment-buttons-in-header
4714 (gnus-mime-buttonize-attachments-in-header))))
4716 ;;;
4717 ;;; Gnus Sticky Article Mode
4718 ;;;
4720 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4721 "Mode for sticky articles."
4722 ;; Release bindings that won't work.
4723 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4724 gnus-sticky-article-mode-map)
4725 (substitute-key-definition 'gnus-article-refer-article 'undefined
4726 gnus-sticky-article-mode-map)
4727 (dolist (k '("e" "h" "s" "F" "R"))
4728 (define-key gnus-sticky-article-mode-map k nil))
4729 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4730 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4731 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4732 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4734 (defun gnus-sticky-article (arg)
4735 "Make the current article sticky.
4736 If a prefix ARG is given, ask for a name for this sticky article buffer."
4737 (interactive "P")
4738 (gnus-summary-show-thread)
4739 (gnus-summary-select-article nil nil 'pseudo)
4740 (let (new-art-buf-name)
4741 (gnus-eval-in-buffer-window gnus-article-buffer
4742 (setq new-art-buf-name
4743 (concat
4744 "*Sticky Article: "
4745 (if arg
4746 (read-from-minibuffer "Sticky article buffer name: ")
4747 (gnus-with-article-headers
4748 (gnus-article-goto-header "subject")
4749 (setq new-art-buf-name
4750 (buffer-substring-no-properties
4751 (line-beginning-position) (line-end-position)))
4752 (goto-char (point-min))
4753 (gnus-article-goto-header "from")
4754 (setq new-art-buf-name
4755 (concat
4756 new-art-buf-name ", "
4757 (buffer-substring-no-properties
4758 (line-beginning-position) (line-end-position))))
4759 (goto-char (point-min))
4760 (gnus-article-goto-header "date")
4761 (setq new-art-buf-name
4762 (concat
4763 new-art-buf-name ", "
4764 (buffer-substring-no-properties
4765 (line-beginning-position) (line-end-position))))))
4766 "*"))
4767 (if (and (gnus-buffer-live-p new-art-buf-name)
4768 (with-current-buffer new-art-buf-name
4769 (derived-mode-p 'gnus-sticky-article-mode)))
4770 (switch-to-buffer new-art-buf-name)
4771 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4772 (gnus-sticky-article-mode))
4773 (setq gnus-article-buffer new-art-buf-name))
4774 (gnus-summary-recenter)
4775 (gnus-summary-position-point))
4777 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4778 "Kill the given sticky article BUFFER.
4779 If none is given, assume the current buffer and kill it if it has
4780 `gnus-sticky-article-mode'."
4781 (interactive)
4782 (unless buffer
4783 (setq buffer (current-buffer)))
4784 (with-current-buffer buffer
4785 (when (derived-mode-p 'gnus-sticky-article-mode)
4786 (gnus-kill-buffer buffer))))
4788 (defun gnus-kill-sticky-article-buffers (arg)
4789 "Kill all sticky article buffers.
4790 If a prefix ARG is given, ask for confirmation."
4791 (interactive "P")
4792 (dolist (buf (gnus-buffers))
4793 (with-current-buffer buf
4794 (when (derived-mode-p 'gnus-sticky-article-mode)
4795 (if (not arg)
4796 (gnus-kill-buffer buf)
4797 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4798 (gnus-kill-buffer buf)))))))
4800 ;;;
4801 ;;; Gnus MIME viewing functions
4802 ;;;
4805 "Format of the MIME buttons.
4807 Valid specifiers include:
4808 %t The MIME type
4809 %T MIME type, along with additional info
4810 %n The `name' parameter
4811 %d The description, if any
4812 %l The length of the encoded part
4813 %p The part identifier number
4814 %e Dots if the part isn't displayed
4816 General format specifiers can also be used. See Info node
4817 `(gnus)Formatting Variables'.")
4819 (defvar gnus-tmp-type)
4820 (defvar gnus-tmp-type-long)
4821 (defvar gnus-tmp-name)
4822 (defvar gnus-tmp-description)
4823 (defvar gnus-tmp-id)
4824 (defvar gnus-tmp-length)
4825 (defvar gnus-tmp-dots)
4826 (defvar gnus-tmp-info)
4827 (defvar gnus-tmp-pressed-details)
4829 (defvar gnus-mime-button-line-format-alist
4830 '((?t gnus-tmp-type ?s)
4831 (?T gnus-tmp-type-long ?s)
4832 (?n gnus-tmp-name ?s)
4833 (?d gnus-tmp-description ?s)
4834 (?p gnus-tmp-id ?s)
4835 (?l gnus-tmp-length ?d)
4836 (?e gnus-tmp-dots ?s)))
4838 (defvar gnus-mime-button-commands
4840 (gnus-mime-view-part "v" "View Interactively...")
4841 (gnus-mime-view-part-as-type "t" "View As Type...")
4842 (gnus-mime-view-part-as-charset "C" "View As charset...")
4843 (gnus-mime-save-part "o" "Save...")
4844 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4845 (gnus-mime-replace-part "r" "Replace part")
4846 (gnus-mime-delete-part "d" "Delete part")
4847 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4848 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4849 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4850 (gnus-mime-view-part-externally "e" "View Externally")
4851 (gnus-mime-print-part "p" "Print")
4852 (gnus-mime-pipe-part "|" "Pipe To Command...")
4853 (gnus-mime-action-on-part "." "Take action on the part...")))
4855 (defun gnus-article-mime-part-status ()
4856 (if gnus-article-mime-handle-alist-1
4857 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4858 " (1 part)"
4859 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4860 ""))
4862 (defvar gnus-mime-button-map
4863 (let ((map (make-sparse-keymap)))
4864 (define-key map [mouse-2] 'gnus-article-push-button)
4865 (define-key map [down-mouse-3] 'gnus-mime-button-menu)
4866 (dolist (c gnus-mime-button-commands)
4867 (define-key map (cadr c) (car c)))
4868 map))
4870 (easy-menu-define
4871 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4872 `("MIME Part"
4873 ,@(mapcar (lambda (c)
4874 (vector (caddr c) (car c) :active t))
4875 gnus-mime-button-commands)))
4877 (defvar gnus-url-button-commands
4878 '((gnus-article-copy-string "u" "Copy URL to kill ring")))
4880 (defvar gnus-url-button-map
4881 (let ((map (make-sparse-keymap)))
4882 (dolist (c gnus-url-button-commands)
4883 (define-key map (cadr c) (car c)))
4884 map))
4886 (easy-menu-define
4887 gnus-url-button-menu gnus-url-button-map "URL button menu."
4888 `("Url Button"
4889 ,@(mapcar (lambda (c)
4890 (vector (caddr c) (car c) :active t))
4891 gnus-url-button-commands)))
4893 (defmacro gnus-bind-mm-vars (&rest body)
4894 "Bind some mm-* variables and execute BODY."
4895 `(let (mm-html-inhibit-images
4896 mm-html-blocked-images
4897 (mm-w3m-safe-url-regexp mm-w3m-safe-url-regexp))
4898 (with-current-buffer
4899 (cond ((derived-mode-p 'gnus-article-mode)
4900 (if (gnus-buffer-live-p gnus-article-current-summary)
4901 gnus-article-current-summary
4902 ;; Maybe we're in a mml-preview buffer
4903 ;; and no group is selected.
4904 (current-buffer)))
4905 ((gnus-buffer-live-p gnus-summary-buffer)
4906 gnus-summary-buffer)
4907 (t (current-buffer)))
4908 (setq mm-html-inhibit-images gnus-inhibit-images
4909 mm-html-blocked-images (gnus-blocked-images))
4910 (when (or (not gnus-newsgroup-name)
4911 (and (stringp gnus-safe-html-newsgroups)
4912 (string-match gnus-safe-html-newsgroups
4913 gnus-newsgroup-name))
4914 (and (consp gnus-safe-html-newsgroups)
4915 (member gnus-newsgroup-name gnus-safe-html-newsgroups)))
4916 (setq mm-w3m-safe-url-regexp nil)))
4917 ,@body))
4919 (defun gnus-mime-button-menu (event prefix)
4920 "Construct a context-sensitive menu of MIME commands."
4922 (save-window-excursion
4923 (let ((pos (event-start event)))
4924 (select-window (posn-window pos))
4925 (goto-char (posn-point pos))
4926 (gnus-article-check-buffer)
4927 (popup-menu gnus-mime-button-menu nil prefix))))
4929 (defun gnus-mime-view-all-parts (&optional handles)
4930 "View all the MIME parts."
4931 (interactive)
4932 (with-current-buffer gnus-article-buffer
4933 (let ((handles (or handles gnus-article-mime-handles))
4934 (mail-parse-charset gnus-newsgroup-charset)
4935 (mail-parse-ignored-charsets
4936 (with-current-buffer gnus-summary-buffer
4937 gnus-newsgroup-ignored-charsets)))
4938 (when handles
4939 (mm-remove-parts handles)
4940 (goto-char (point-min))
4942 (let ((inhibit-read-only t))
4943 (delete-region (point) (point-max))
4944 (gnus-bind-mm-vars (mm-display-parts handles)))))))
4946 (defun gnus-article-jump-to-part (n)
4947 "Jump to MIME part N."
4948 (interactive "P")
4949 (let ((parts (with-current-buffer gnus-article-buffer
4950 (length gnus-article-mime-handle-alist))))
4951 (when (zerop parts)
4952 (error "No such part"))
4953 (pop-to-buffer gnus-article-buffer)
4954 (or n
4955 (setq n (if (= parts 1)
4956 1
4957 (read-number (format "Jump to part (1..%s): " parts)))))
4958 (unless (and (integerp n) (<= n parts) (>= n 1))
4959 (setq n
4960 (progn
4961 (gnus-message 7 "Invalid part `%s', using %s instead."
4962 n parts)
4963 parts)))
4964 (gnus-message 9 "Jumping to part %s." n)
4965 (cond ((>= gnus-auto-select-part 1)
4966 (while (and (<= n parts)
4967 (not (gnus-article-goto-part n)))
4968 (setq n (1+ n))))
4969 ((< gnus-auto-select-part 0)
4970 (while (and (>= n 1)
4971 (not (gnus-article-goto-part n)))
4972 (setq n (1- n))))
4973 (t
4974 (gnus-article-goto-part n)))))
4976 (defvar gnus-mime-buttonized-part-id nil
4977 "ID of a mime part that should be buttonized.
4978 `gnus-mime-save-part-and-strip' and `gnus-mime-delete-part' bind it.")
4980 (eval-when-compile
4981 (defsubst gnus-article-edit-part (handles &optional current-id)
4982 "Edit an article in order to delete a mime part.
4983 This function is exclusively used by `gnus-mime-save-part-and-strip'
4984 and `gnus-mime-delete-part', and not provided at run-time normally."
4985 (gnus-article-edit-article
4986 `(lambda ()
4987 (buffer-disable-undo)
4988 (let ((mail-parse-charset (or gnus-article-charset
4989 ',gnus-newsgroup-charset))
4990 (mail-parse-ignored-charsets
4991 (or gnus-article-ignored-charsets
4992 ',gnus-newsgroup-ignored-charsets))
4993 (mbl mml-buffer-list))
4994 (setq mml-buffer-list nil)
4995 ;; A new text must be inserted before deleting existing ones
4996 ;; at the end so as not to move existing markers of which
4997 ;; the insertion type is t.
4998 (delete-region
4999 (point-min)
5000 (prog1
5001 (goto-char (point-max))
5002 (insert-buffer-substring gnus-original-article-buffer)))
5003 (mime-to-mml ',handles)
5004 (setq gnus-article-mime-handles nil)
5005 (let ((mbl1 mml-buffer-list))
5006 (setq mml-buffer-list mbl)
5007 (set (make-local-variable 'mml-buffer-list) mbl1))
5008 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
5009 `(lambda (no-highlight)
5010 (let ((mail-parse-charset (or gnus-article-charset
5011 ',gnus-newsgroup-charset))
5012 (message-options message-options)
5013 (message-options-set-recipient)
5014 (mail-parse-ignored-charsets
5015 (or gnus-article-ignored-charsets
5016 ',gnus-newsgroup-ignored-charsets)))
5017 (mml-to-mime)
5018 (mml-destroy-buffers)
5019 (remove-hook 'kill-buffer-hook
5020 'mml-destroy-buffers t)
5021 (kill-local-variable 'mml-buffer-list))
5022 (gnus-summary-edit-article-done
5023 ,(or (mail-header-references gnus-current-headers) "")
5024 ,(gnus-group-read-only-p)
5025 ,gnus-summary-buffer no-highlight))
5026 t)
5027 ;; Force buttonizing this part.
5028 (let ((gnus-mime-buttonized-part-id current-id))
5029 (gnus-article-edit-done))
5030 (gnus-configure-windows 'article)
5031 (sit-for 0)
5032 (when (and current-id (integerp gnus-auto-select-part))
5033 (gnus-article-jump-to-part
5034 (min (max (+ current-id gnus-auto-select-part) 1)
5035 (with-current-buffer gnus-article-buffer
5036 (length gnus-article-mime-handle-alist)))))))
5038 (defun gnus-mime-replace-part (file)
5039 "Replace MIME part under point with an external body."
5040 ;; Useful if file has already been saved to disk
5041 (interactive
5042 (list
5043 (read-file-name "Replace MIME part with file: "
5044 (or mm-default-directory default-directory)
5045 nil nil)))
5046 (gnus-mime-save-part-and-strip file))
5048 (defun gnus-mime-save-part-and-strip (&optional file)
5049 "Save the MIME part under point then replace it with an external body.
5050 If FILE is given, use it for the external part."
5051 (interactive)
5052 (gnus-article-check-buffer)
5053 (when (gnus-group-read-only-p)
5054 (error "The current group does not support deleting of parts"))
5055 (when (mm-complicated-handles gnus-article-mime-handles)
5056 (error "\
5057 The current article has a complicated MIME structure, giving up..."))
5058 (let* ((data (get-text-property (point) 'gnus-data))
5059 (id (get-text-property (point) 'gnus-part))
5060 (handles gnus-article-mime-handles))
5061 (unless file
5062 (setq file
5063 (and data (mm-save-part data "Delete MIME part and save to: "))))
5064 (when file
5065 (with-current-buffer (mm-handle-buffer data)
5066 (erase-buffer)
5067 (insert "Content-Type: " (mm-handle-media-type data))
5068 (mml-insert-parameter-string (cdr (mm-handle-type data))
5069 '(charset))
5070 ;; Add a filename for the sake of saving the part again.
5071 (mml-insert-parameter
5072 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
5077 (setcdr data
5078 (cdr (mm-make-handle nil
5079 `("message/external-body"
5080 (access-type . "LOCAL-FILE")
5081 (name . ,file)))))
5082 ;; (set-buffer gnus-summary-buffer)
5083 (gnus-article-edit-part handles id))))
5085 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
5086 ;; parts...>') but with stripping would be nice.
5088 (defun gnus-mime-delete-part ()
5089 "Delete the MIME part under point.
5090 Replace it with some information about the removed part."
5091 (interactive)
5092 (gnus-article-check-buffer)
5093 (when (gnus-group-read-only-p)
5094 (error "The current group does not support deleting of parts"))
5095 (when (mm-complicated-handles gnus-article-mime-handles)
5096 (error "\
5097 The current article has a complicated MIME structure, giving up..."))
5098 (when (or gnus-expert-user
5099 (gnus-yes-or-no-p "\
5100 Deleting parts may malfunction or destroy the article; continue? "))
5101 (let* ((data (get-text-property (point) 'gnus-data))
5102 (id (get-text-property (point) 'gnus-part))
5103 (handles gnus-article-mime-handles)
5104 (description
5105 (let ((desc (mm-handle-description data)))
5106 (when desc
5107 (mail-decode-encoded-word-string desc))))
5108 (filename (or (mm-handle-filename data) "(none)"))
5109 (type (mm-handle-media-type data)))
5110 (unless data
5111 (error "No MIME part under point"))
5112 (with-current-buffer (mm-handle-buffer data)
5113 (let ((bsize (buffer-size)))
5114 (erase-buffer)
5115 (insert
5116 (concat
5123 bsize (if (= bsize 1)
5124 ""
5125 "s"))
5126 (when description
5129 (setcdr data
5130 (cdr (mm-make-handle
5131 nil `("text/plain" (charset . gnus-decoded)) nil nil
5132 (list "attachment")
5133 (format "Deleted attachment (%s bytes)" bsize))))))
5134 ;; (set-buffer gnus-summary-buffer)
5135 (gnus-article-edit-part handles id))))
5137 (defun gnus-mime-save-part ()
5138 "Save the MIME part under point."
5139 (interactive)
5140 (gnus-article-check-buffer)
5141 (let ((data (get-text-property (point) 'gnus-data)))
5142 (when data
5143 (mm-save-part data))))
5145 (defun gnus-mime-pipe-part (&optional cmd)
5146 "Pipe the MIME part under point to a process.
5147 Use CMD as the process."
5148 (interactive)
5149 (gnus-article-check-buffer)
5150 (let ((data (get-text-property (point) 'gnus-data)))
5151 (when data
5152 (mm-pipe-part data cmd))))
5154 (defun gnus-mime-view-part ()
5155 "Interactively choose a viewing method for the MIME part under point."
5156 (interactive)
5157 (gnus-article-check-buffer)
5158 (let ((data (get-text-property (point) 'gnus-data)))
5159 (when data
5160 (setq gnus-article-mime-handles
5161 (mm-merge-handles
5162 gnus-article-mime-handles (setq data (copy-sequence data))))
5163 (mm-interactively-view-part data))))
5165 (defun gnus-mime-view-part-as-type-internal ()
5166 (gnus-article-check-buffer)
5167 (let* ((handle (get-text-property (point) 'gnus-data))
5168 (name (or
5169 ;; Content-Type: foo/bar; name=...
5170 (mail-content-type-get (mm-handle-type handle) 'name)
5171 ;; Content-Disposition: attachment; filename=...
5172 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
5173 (def-type (and name (mm-default-file-encoding name))))
5174 (or (and def-type (cons def-type 0))
5175 (and handle
5176 (equal (mm-handle-media-supertype handle) "text")
5177 '("text/plain" . 0))
5178 '("application/octet-stream" . 0))))
5180 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
5181 "Choose a MIME media type, and view the part as such.
5182 If non-nil, PRED is a predicate to use during completion to limit the
5183 available media-types."
5184 (interactive)
5185 (unless mime-type
5186 (setq mime-type
5187 (let ((default (gnus-mime-view-part-as-type-internal)))
5188 (gnus-completing-read
5189 "View as MIME type"
5190 (if pred
5191 (gnus-remove-if-not pred (mailcap-mime-types))
5192 (mailcap-mime-types))
5193 nil nil nil
5194 (car default)))))
5195 (gnus-article-check-buffer)
5196 (let ((handle (get-text-property (point) 'gnus-data)))
5197 (when handle
5198 (when (equal (mm-handle-media-type handle) "message/external-body")
5199 (unless (mm-handle-cache handle)
5200 (mm-extern-cache-contents handle))
5201 (setq handle (mm-handle-cache handle)))
5202 (setq handle
5203 (mm-make-handle (mm-handle-buffer handle)
5204 (cons mime-type (cdr (mm-handle-type handle)))
5205 (mm-handle-encoding handle)
5206 (mm-handle-undisplayer handle)
5207 (mm-handle-disposition handle)
5208 (mm-handle-description handle)
5209 nil
5210 (mm-handle-id handle)))
5211 (setq gnus-article-mime-handles
5212 (mm-merge-handles gnus-article-mime-handles handle))
5213 (when (mm-handle-displayed-p handle)
5214 (mm-remove-part handle))
5215 (gnus-mm-display-part handle))))
5217 (defun gnus-mime-copy-part (&optional handle arg)
5218 "Put the MIME part under point into a new buffer.
5219 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
5220 are decompressed."
5221 (interactive (list nil current-prefix-arg))
5222 (gnus-article-check-buffer)
5223 (unless handle
5224 (setq handle (get-text-property (point) 'gnus-data)))
5225 (when handle
5226 (let ((filename (mm-handle-filename handle))
5227 contents dont-decode charset coding-system)
5228 (mm-with-unibyte-buffer
5229 (mm-insert-part handle)
5230 (setq contents (or (condition-case nil
5231 (mm-decompress-buffer filename nil 'sig)
5232 (error
5233 (setq dont-decode t)
5234 nil))
5235 (buffer-string))))
5236 (setq filename (cond (filename (file-name-nondirectory filename))
5237 (dont-decode "*raw data*")
5238 (t "*decoded*")))
5239 (cond
5240 (dont-decode)
5241 ((not arg)
5242 (unless (setq charset (mail-content-type-get
5243 (mm-handle-type handle) 'charset))
5244 (unless (setq coding-system (mm-with-unibyte-buffer
5245 (insert contents)
5246 (mm-find-buffer-file-coding-system)))
5247 (setq charset gnus-newsgroup-charset))))
5248 ((numberp arg)
5249 (setq charset (or (cdr (assq arg
5250 gnus-summary-show-article-charset-alist))
5251 (read-coding-system "Charset: ")))))
5252 (switch-to-buffer (generate-new-buffer filename))
5253 (if (or coding-system
5254 (and charset
5255 (setq coding-system (mm-charset-to-coding-system
5256 charset nil t))
5257 (not (eq coding-system 'ascii))))
5258 (progn
5259 (mm-enable-multibyte)
5260 (insert (decode-coding-string contents coding-system))
5261 (setq buffer-file-coding-system last-coding-system-used))
5262 (mm-disable-multibyte)
5263 (insert contents)
5264 (setq buffer-file-coding-system mm-binary-coding-system))
5265 ;; We do it this way to make `normal-mode' set the appropriate mode.
5266 (unwind-protect
5267 (progn
5268 (setq buffer-file-name (expand-file-name filename))
5269 (normal-mode))
5270 (setq buffer-file-name nil))
5271 (goto-char (point-min)))))
5273 (defun gnus-mime-print-part (&optional handle filename)
5274 "Print the MIME part under point."
5275 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5276 (gnus-article-check-buffer)
5277 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5278 (contents (and handle (mm-get-part handle)))
5279 (file (make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5280 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5281 (when contents
5282 (if printer
5283 (unwind-protect
5284 (progn
5285 (mm-save-part-to-file handle file)
5286 (call-process shell-file-name nil
5287 (generate-new-buffer " *mm*")
5288 nil
5289 shell-command-switch
5290 (mm-mailcap-command
5291 printer file (mm-handle-type handle))))
5292 (delete-file file))
5293 (with-temp-buffer
5294 (insert contents)
5295 (gnus-print-buffer))
5296 (ps-despool filename)))))
5298 (defun gnus-mime-inline-part (&optional handle arg)
5299 "Insert the MIME part under point into the current buffer.
5300 Compressed files like .gz and .bz2 are decompressed."
5301 (interactive (list nil current-prefix-arg))
5302 (gnus-article-check-buffer)
5303 (let* ((inhibit-read-only t)
5304 (b (point))
5305 (btn ;; position where the MIME button exists
5306 (if handle
5307 (if (eq handle (get-text-property b 'gnus-data))
5308 b
5309 (article-goto-body)
5310 (or (text-property-any (point) (point-max) 'gnus-data handle)
5311 (text-property-any (point-min) (point) 'gnus-data handle)))
5312 (setq handle (get-text-property b 'gnus-data))
5313 b))
5314 start)
5315 (when handle
5316 (when (= b (prog1
5317 btn
5318 (setq start (next-single-property-change btn 'gnus-data
5319 nil (point-max))
5320 btn (previous-single-property-change start
5321 'gnus-data))))
5322 (setq b btn))
5323 (if (and (not arg) (mm-handle-undisplayer handle))
5324 (progn
5325 (setq b (copy-marker b)
5326 btn (copy-marker btn))
5327 (mm-remove-part handle))
5328 (cond
5329 ((not arg) nil)
5330 ((numberp arg)
5331 (if (mm-handle-undisplayer handle)
5332 (mm-remove-part handle)))
5333 ((mm-handle-undisplayer handle)
5334 (mm-remove-part handle)))
5335 (goto-char start)
5336 (unless (bolp)
5337 ;; This is a header button.
5338 (forward-line 1))
5339 (mm-display-inline handle))
5340 ;; Toggle the button appearance between `[button]...' and `[button]'.
5341 (when (markerp btn)
5342 (setq btn (prog1 (marker-position btn)
5343 (set-marker btn nil))))
5344 (goto-char btn)
5345 (let ((displayed-p (mm-handle-displayed-p handle)))
5346 (gnus-insert-mime-button handle (get-text-property btn 'gnus-part)
5347 (list displayed-p))
5348 (delete-region
5349 (point)
5350 (next-single-property-change (point) 'gnus-data nil (point-max)))
5351 (setq start (point))
5353 (progn
5354 (goto-char start)
5355 (unless (or displayed-p (eolp))
5356 ;; Add extra newline.
5357 (insert (propertize (buffer-substring (1- start) start)
5358 'gnus-undeletable t))))
5359 ;; We're in the article header.
5360 (delete-char -1)
5361 (dolist (ovl (overlays-in btn (point)))
5362 (overlay-put ovl 'gnus-button-attachment-extra t)
5363 (overlay-put ovl 'face nil))
5364 (save-restriction
5365 (message-narrow-to-field)
5366 (let ((gnus-treatment-function-alist
5367 '((gnus-treat-highlight-headers
5368 gnus-article-highlight-headers))))
5369 (gnus-treat-article 'head)))))
5370 (when (markerp b)
5371 (setq b (prog1 (marker-position b)
5372 (set-marker b nil))))
5373 (goto-char b))))
5375 (defun gnus-mime-set-charset-parameters (handle charset)
5376 "Set CHARSET to parameters in HANDLE.
5377 CHARSET may either be a string or a symbol."
5378 (unless (stringp charset)
5379 (setq charset (symbol-name charset)))
5380 (if (stringp (car handle))
5381 (dolist (h (cdr handle))
5382 (gnus-mime-set-charset-parameters h charset))
5383 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5384 "message/external-body")
5385 (progn
5386 (unless (mm-handle-cache handle)
5387 (mm-extern-cache-contents handle))
5388 (mm-handle-cache handle))
5389 handle)))
5390 (param (assq 'charset (cdr type))))
5391 (if param
5392 (setcdr param charset)
5393 (setcdr type (cons (cons 'charset charset) (cdr type)))))))
5395 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5396 "Insert the MIME part under point into the current buffer using the
5397 specified charset."
5398 (interactive (list nil current-prefix-arg))
5399 (gnus-article-check-buffer)
5400 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5401 (fun (get-text-property (point) 'gnus-callback))
5402 (gnus-newsgroup-ignored-charsets 'gnus-all)
5403 charset form preferred parts)
5404 (when handle
5405 (when (prog1
5406 (and fun
5407 (setq charset
5408 (or (cdr (assq
5409 arg
5410 gnus-summary-show-article-charset-alist))
5411 (read-coding-system "Charset: "))))
5412 (if (mm-handle-undisplayer handle)
5413 (mm-remove-part handle)))
5414 (gnus-mime-set-charset-parameters handle charset)
5415 (when (and (consp (setq form (cdr-safe fun)))
5416 (setq form (ignore-errors
5417 (assq 'gnus-mime-display-alternative form)))
5418 (setq preferred (caddr form))
5419 (progn
5420 (when (eq (car preferred) 'quote)
5421 (setq preferred (cadr preferred)))
5422 (not (equal preferred
5423 (get-text-property (point) 'gnus-data))))
5424 (setq parts (get-text-property (point) 'gnus-part))
5425 (setq parts (cdr (assq parts
5426 gnus-article-mime-handle-alist)))
5427 (equal (mm-handle-media-type parts) "multipart/alternative")
5428 (setq parts (reverse (cdr parts))))
5429 (setcar (cddr form)
5430 (list 'quote (or (cadr (member preferred parts))
5431 (car parts)))))
5432 (funcall fun handle)))))
5434 (defun gnus-mime-view-part-externally (&optional handle)
5435 "View the MIME part under point with an external viewer."
5436 (interactive)
5437 (gnus-article-check-buffer)
5438 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5439 (mm-inlined-types nil)
5440 (mail-parse-charset gnus-newsgroup-charset)
5441 (mail-parse-ignored-charsets
5442 (with-current-buffer gnus-summary-buffer
5443 gnus-newsgroup-ignored-charsets))
5444 (type (mm-handle-media-type handle))
5445 (method (mailcap-mime-info type))
5446 (mm-enable-external t))
5447 (if (not (stringp method))
5448 (gnus-mime-view-part-as-type
5449 nil (lambda (type) (stringp (mailcap-mime-info type))))
5450 (when handle
5451 (mm-display-part handle nil t)))))
5453 (defun gnus-mime-view-part-internally (&optional handle)
5454 "View the MIME part under point with an internal viewer.
5455 If no internal viewer is available, use an external viewer."
5456 (interactive)
5457 (gnus-article-check-buffer)
5458 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5459 (mm-inlined-types '(".*"))
5460 (mm-inline-large-images t)
5461 (mail-parse-charset gnus-newsgroup-charset)
5462 (mail-parse-ignored-charsets
5463 (with-current-buffer gnus-summary-buffer
5464 gnus-newsgroup-ignored-charsets))
5465 (inhibit-read-only t))
5466 (if (not (mm-inlinable-p handle))
5467 (gnus-mime-view-part-as-type
5468 nil (lambda (type) (mm-inlinable-p handle type)))
5469 (when handle
5470 (gnus-bind-mm-vars (mm-display-part handle nil t))))))
5472 (defun gnus-mime-action-on-part (&optional action)
5473 "Do something with the MIME attachment at (point)."
5474 (interactive
5475 (list (gnus-completing-read "Action" (mapcar 'car gnus-mime-action-alist) t)))
5476 (gnus-article-check-buffer)
5477 (let ((action-pair (assoc action gnus-mime-action-alist)))
5478 (if action-pair
5479 (funcall (cdr action-pair)))))
5481 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5482 "Call FUNCTION on MIME part N.
5483 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as its only argument.
5484 If INTERACTIVE, call FUNCTION interactively."
5485 (let (window frame)
5486 ;; Check whether the article is displayed.
5487 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5488 (setq window (get-buffer-window gnus-article-buffer t))
5489 (frame-visible-p (setq frame (window-frame window))))
5490 (error "No article is displayed"))
5491 (with-current-buffer gnus-article-buffer
5492 ;; Check whether the article displays the right contents.
5493 (unless (with-current-buffer gnus-summary-buffer
5494 (eq gnus-current-article (gnus-summary-article-number)))
5495 (error "You should select the right article first"))
5496 (if n
5497 (setq n (prefix-numeric-value n))
5498 (let ((pt (point)))
5499 (setq n (or (get-text-property pt 'gnus-part)
5500 (and (not (bobp))
5501 (get-text-property (1- pt) 'gnus-part))
5502 (get-text-property (prog2
5503 (forward-line 1)
5504 (point)
5505 (goto-char pt))
5506 'gnus-part)
5507 (get-text-property
5508 (or (and (setq pt (previous-single-property-change
5509 pt 'gnus-part))
5510 (1- pt))
5511 (next-single-property-change (point) 'gnus-part)
5512 (point))
5513 'gnus-part)
5514 1))))
5515 ;; Check whether the specified part exists.
5516 (when (> n (length gnus-article-mime-handle-alist))
5517 (error "No such part")))
5518 (unless
5519 (progn
5520 ;; To select the window is needed so that the cursor
5521 ;; might be visible on the MIME button.
5522 (select-window (prog1
5523 window
5524 (setq window (selected-window))
5525 ;; Article may be displayed in the other frame.
5526 (select-frame-set-input-focus
5527 (prog1
5528 frame
5529 (setq frame (selected-frame))))))
5530 (when (gnus-article-goto-part n)
5531 ;; We point the cursor and the arrow at the MIME button
5532 ;; when the `function' prompt the user for something.
5533 (unless (and (pos-visible-in-window-p)
5534 (> (count-lines (point) (window-end))
5535 (/ (1- (window-height)) 3)))
5536 (recenter (/ (1- (window-height)) 3)))
5537 (let ((cursor-in-non-selected-windows t)
5538 (overlay-arrow-string "=>")
5539 (overlay-arrow-position (point-marker)))
5540 (unwind-protect
5541 (cond
5542 ((and no-handle interactive)
5543 (call-interactively function))
5544 (no-handle
5545 (funcall function))
5546 (interactive
5547 (call-interactively
5548 function (get-text-property (point) 'gnus-data)))
5549 (t
5550 (funcall function
5551 (get-text-property (point) 'gnus-data))))
5552 (set-marker overlay-arrow-position nil)
5553 (unless gnus-auto-select-part
5554 (select-frame-set-input-focus frame)
5555 (select-window window))))
5556 t))
5557 (if gnus-inhibit-mime-unbuttonizing
5558 ;; This is the default though the program shouldn't reach here.
5559 (error "No such part")
5560 ;; The part which doesn't have the MIME button is selected.
5561 ;; So, we display all the buttons and redo it.
5562 (let ((gnus-inhibit-mime-unbuttonizing t))
5563 (gnus-summary-show-article)
5564 (gnus-article-part-wrapper n function no-handle))))))
5566 (defun gnus-article-pipe-part (n)
5567 "Pipe MIME part N, which is the numerical prefix."
5568 (interactive "P")
5569 (gnus-article-part-wrapper n 'mm-pipe-part))
5571 (defun gnus-article-save-part (n)
5572 "Save MIME part N, which is the numerical prefix."
5573 (interactive "P")
5574 (gnus-article-part-wrapper n 'mm-save-part))
5576 (defun gnus-article-interactively-view-part (n)
5577 "View MIME part N interactively, which is the numerical prefix."
5578 (interactive "P")
5579 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5581 (defun gnus-article-copy-part (n)
5582 "Copy MIME part N, which is the numerical prefix."
5583 (interactive "P")
5584 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5586 (defun gnus-article-view-part-as-charset (n)
5587 "View MIME part N using a specified charset.
5588 N is the numerical prefix."
5589 (interactive "P")
5590 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5592 (defun gnus-article-view-part-externally (n)
5593 "View MIME part N externally, which is the numerical prefix."
5594 (interactive "P")
5595 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5597 (defun gnus-article-inline-part (n)
5598 "Inline MIME part N, which is the numerical prefix."
5599 (interactive "P")
5600 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5602 (defun gnus-article-save-part-and-strip (n)
5603 "Save MIME part N and replace it with an external body.
5604 N is the numerical prefix."
5605 (interactive "P")
5606 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5608 (defun gnus-article-replace-part (n)
5609 "Replace MIME part N with an external body.
5610 N is the numerical prefix."
5611 (interactive "P")
5612 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5614 (defun gnus-article-delete-part (n)
5615 "Delete MIME part N and add some information about the removed part.
5616 N is the numerical prefix."
5617 (interactive "P")
5618 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5620 (defun gnus-article-view-part-as-type (n)
5621 "Choose a MIME media type, and view part N as such.
5622 N is the numerical prefix."
5623 (interactive "P")
5624 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5626 (defun gnus-article-mime-match-handle-first (condition)
5627 (if condition
5628 (let (n)
5629 (dolist (ihandle gnus-article-mime-handle-alist)
5630 (if (and (cond
5631 ((functionp condition)
5632 (funcall condition (cdr ihandle)))
5633 ((eq condition 'undisplayed)
5634 (not (or (mm-handle-undisplayer (cdr ihandle))
5635 (equal (mm-handle-media-type (cdr ihandle))
5636 "multipart/alternative"))))
5637 ((eq condition 'undisplayed-alternative)
5638 (not (mm-handle-undisplayer (cdr ihandle))))
5639 (t t))
5640 (gnus-article-goto-part (car ihandle))
5641 (or (not n) (< (car ihandle) n)))
5642 (setq n (car ihandle))))
5643 (or n 1))
5644 1))
5646 (defun gnus-article-view-part (&optional n)
5647 "View MIME part N, which is the numerical prefix.
5648 If the part is already shown, hide the part. If N is nil, view
5649 all parts."
5650 (interactive "P")
5651 (with-current-buffer gnus-article-buffer
5652 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5653 gnus-article-mime-match-handle-function)))
5654 (when (> n (length gnus-article-mime-handle-alist))
5655 (error "No such part"))
5656 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5657 (when (gnus-article-goto-part n)
5658 (if (equal (car handle) "multipart/alternative")
5659 (progn
5660 (beginning-of-line) ;; Make it toggle subparts
5661 (gnus-article-press-button))
5662 (when (eq (gnus-mm-display-part handle) 'internal)
5663 (gnus-set-window-start)))))))
5665 (defsubst gnus-article-mime-total-parts ()
5666 (if (bufferp (car gnus-article-mime-handles))
5667 1 ;; single part
5668 (1- (length gnus-article-mime-handles))))
5670 (defun gnus-mm-display-part (handle)
5671 "Display HANDLE and fix MIME button."
5672 (let ((id (get-text-property (point) 'gnus-part))
5673 (point (point))
5674 (inhibit-read-only t)
5675 (window (selected-window))
5676 (mail-parse-charset gnus-newsgroup-charset)
5677 (mail-parse-ignored-charsets
5678 (if (gnus-buffer-live-p gnus-summary-buffer)
5679 (with-current-buffer gnus-summary-buffer
5680 gnus-newsgroup-ignored-charsets)
5681 nil))
5682 start retval)
5683 (unwind-protect
5684 (progn
5685 (let ((win (gnus-get-buffer-window (current-buffer) t)))
5686 (when win
5687 (select-window win)
5688 (goto-char point)))
5689 (setq start (next-single-property-change point 'gnus-data
5690 nil (point-max))
5691 point (previous-single-property-change start 'gnus-data))
5692 (if (mm-handle-displayed-p handle)
5693 ;; This will remove the part.
5694 (setq point (copy-marker point)
5695 retval (mm-display-part handle))
5696 (let ((part (or (and (mm-inlinable-p handle)
5697 (mm-inlined-p handle)
5698 t)
5699 (with-temp-buffer
5700 (gnus-bind-mm-vars
5701 (setq retval (mm-display-part handle)))
5702 (unless (zerop (buffer-size))
5703 (buffer-string))))))
5704 (goto-char start)
5705 (unless (bolp)
5706 ;; This is a header button.
5707 (forward-line 1))
5708 (cond ((stringp part)
5709 (save-restriction
5710 (narrow-to-region (point)
5711 (progn
5712 (insert part)
5714 (point)))
5715 (gnus-treat-article nil id
5716 (gnus-article-mime-total-parts)
5717 (mm-handle-media-type handle))
5718 (mm-handle-set-undisplayer
5719 handle
5720 `(lambda ()
5721 (let ((inhibit-read-only t))
5722 (delete-region ,(copy-marker (point-min) t)
5723 ,(point-max-marker)))))))
5724 (part
5725 (mm-display-inline handle))))))
5726 (when (markerp point)
5727 (setq point (prog1 (marker-position point)
5728 (set-marker point nil))))
5729 (goto-char point)
5730 ;; Toggle the button appearance between `[button]...' and `[button]'.
5731 (let ((displayed-p (mm-handle-displayed-p handle)))
5732 (gnus-insert-mime-button handle id (list displayed-p))
5733 (delete-region
5734 (point)
5735 (next-single-property-change (point) 'gnus-data nil (point-max)))
5736 (setq start (point))
5738 (progn
5739 (goto-char start)
5740 (unless (or displayed-p (eolp))
5741 ;; Add extra newline.
5742 (insert (propertize (buffer-substring (1- start) start)
5743 'gnus-undeletable t))))
5744 ;; We're in the article header.
5745 (delete-char -1)
5746 (dolist (ovl (overlays-in point (point)))
5747 (overlay-put ovl 'gnus-button-attachment-extra t)
5748 (overlay-put ovl 'face nil))
5749 (save-restriction
5750 (message-narrow-to-field)
5751 (let ((gnus-treatment-function-alist
5752 '((gnus-treat-highlight-headers
5753 gnus-article-highlight-headers))))
5754 (gnus-treat-article 'head)))))
5755 (goto-char point)
5756 (if (window-live-p window)
5757 (select-window window)))
5758 retval))
5760 (defun gnus-article-goto-part (n)
5761 "Go to MIME part N."
5762 (when gnus-break-pages
5763 (widen))
5764 (article-goto-body)
5765 (prog1
5766 (let ((start (or (text-property-any (point) (point-max) 'gnus-part n)
5767 ;; There may be header buttons.
5768 (text-property-any (point-min) (point) 'gnus-part n)))
5769 part handle end next handles)
5770 (when start
5771 (goto-char start)
5772 (if (setq handle (get-text-property start 'gnus-data))
5773 start
5774 ;; Go to the displayed subpart, assuming this is
5775 ;; multipart/alternative.
5776 (setq part start
5777 end (point-at-eol))
5778 (while (and (not handle)
5779 part
5780 (< part end)
5781 (setq next (text-property-not-all part end
5782 'gnus-data nil)))
5783 (setq part next
5784 handle (get-text-property part 'gnus-data))
5785 (push (cons handle part) handles)
5786 (unless (mm-handle-displayed-p handle)
5787 (setq handle nil
5788 part (text-property-any part end 'gnus-data nil))))
5789 (unless handle
5790 ;; No subpart is displayed, so we find preferred one.
5791 (setq part
5792 (cdr (assq (mm-preferred-alternative
5793 (nreverse (mapcar 'car handles)))
5794 handles))))
5795 (if part
5796 (goto-char (1+ part))
5797 start))))
5798 (when gnus-break-pages
5799 (gnus-narrow-to-page))))
5801 (defun gnus-insert-mime-button (handle id &optional displayed)
5802 (let ((gnus-tmp-name
5803 (or (mm-handle-filename handle)
5804 (mail-content-type-get (mm-handle-type handle) 'url)
5805 ""))
5806 (gnus-tmp-id id)
5807 (gnus-tmp-type (mm-handle-media-type handle))
5808 (gnus-tmp-description (or (mm-handle-description handle) ""))
5809 (gnus-tmp-dots
5810 (if (if displayed (car displayed)
5811 (mm-handle-displayed-p handle))
5812 "" "..."))
5813 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5814 (buffer-size)))
5815 gnus-tmp-type-long b e)
5816 (when (string-match ".*/" gnus-tmp-name)
5817 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5818 (setq gnus-tmp-type-long (concat gnus-tmp-type
5819 (and (not (equal gnus-tmp-name ""))
5820 (concat "; " gnus-tmp-name))))
5821 (unless (equal gnus-tmp-description "")
5822 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5823 (setq b (point))
5824 (gnus-eval-format
5825 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5826 `(keymap ,gnus-mime-button-map
5827 gnus-callback gnus-mm-display-part
5828 gnus-part ,gnus-tmp-id
5829 article-type annotation
5830 gnus-data ,handle
5831 rear-nonsticky t))
5832 (setq e (if (bolp)
5833 ;; Exclude a newline.
5834 (1- (point))
5835 (point)))
5836 (when gnus-article-button-face
5837 (overlay-put (make-overlay b e nil t)
5838 'face gnus-article-button-face))
5839 (widget-convert-button
5840 'link b e
5841 :mime-handle handle
5842 :action 'gnus-widget-press-button
5843 :button-keymap gnus-mime-button-map
5844 :help-echo
5845 (lambda (widget)
5846 (format
5847 "%S: %s the MIME part; %S: more options"
5848 'mouse-2
5849 (if (mm-handle-displayed-p (widget-get widget :mime-handle))
5850 "hide" "show")
5851 'down-mouse-3)))))
5853 (defun gnus-widget-press-button (elems _el)
5854 (goto-char (widget-get elems :from))
5855 (gnus-article-press-button))
5857 (defvar gnus-displaying-mime nil)
5859 (defun gnus-display-mime (&optional ihandles)
5860 "Display the MIME parts."
5861 (save-excursion
5862 (save-selected-window
5863 (let ((window (get-buffer-window gnus-article-buffer))
5864 (point (point)))
5865 (when window
5866 (select-window window)
5867 ;; We have to do this since selecting the window
5868 ;; may change the point. So we set the window point.
5869 (set-window-point window point)))
5870 (let ((handles ihandles)
5871 (inhibit-read-only t))
5872 (cond (handles)
5873 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5874 (when gnus-article-emulate-mime
5875 (mm-uu-dissect-text-parts handles)))
5876 (gnus-article-emulate-mime
5877 (setq handles (mm-uu-dissect))))
5878 (when (and (not ihandles)
5879 (not gnus-displaying-mime))
5880 ;; Top-level call; we clean up.
5881 (when gnus-article-mime-handles
5882 (mm-destroy-parts gnus-article-mime-handles)
5883 (setq gnus-article-mime-handle-alist nil));; A trick.
5884 (setq gnus-article-mime-handles handles)
5885 ;; We allow users to glean info from the handles.
5886 (when gnus-article-mime-part-function
5887 (gnus-mime-part-function handles)))
5888 (if (and handles
5889 (or (not (stringp (car handles)))
5890 (cdr handles)))
5891 (progn
5892 (when (and (not ihandles)
5893 (not gnus-displaying-mime))
5894 ;; Clean up for mime parts.
5895 (article-goto-body)
5896 (delete-region (point) (point-max)))
5897 (let ((gnus-displaying-mime t))
5898 (gnus-mime-display-part handles)))
5899 (save-restriction
5900 (article-goto-body)
5901 (narrow-to-region (point) (point-max))
5902 (gnus-treat-article nil 1 1 "text/plain")
5903 (widen)))
5904 (unless ihandles
5905 ;; Highlight the headers.
5906 (save-excursion
5907 (save-restriction
5908 (article-goto-body)
5909 (narrow-to-region (point-min) (point))
5910 (gnus-article-save-original-date
5911 (gnus-treat-article 'head)))))))
5912 ;; Cope with broken MIME messages.
5913 (goto-char (point-max))
5914 (unless (bolp)
5917 (defcustom gnus-mime-display-multipart-as-mixed nil
5920 If t, it overrides nil values of
5921 `gnus-mime-display-multipart-alternative-as-mixed' and
5922 `gnus-mime-display-multipart-related-as-mixed'."
5923 :group 'gnus-article-mime
5924 :type 'boolean)
5926 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5928 :version "22.1"
5929 :group 'gnus-article-mime
5930 :type 'boolean)
5932 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5936 `mm-discouraged-alternatives') images or other material inside a
5938 :version "22.1"
5939 :group 'gnus-article-mime
5940 :type 'boolean)
5942 (defcustom gnus-mime-display-attachment-buttons-in-header t
5943 "Add attachment buttons in the end of the header of an article.
5944 Since MIME attachments tend to be put at the end of an article, we may
5945 overlook them if there is a huge body. This option offers you a copy
5946 of all non-inlinable MIME parts as buttons shown in front of an article.
5947 If nil, don't show those extra buttons."
5948 :version "25.1"
5949 :group 'gnus-article-mime
5950 :type 'boolean)
5952 (defun gnus-mime-display-part (handle)
5953 (cond
5954 ;; Maybe a broken MIME message.
5955 ((null handle))
5956 ;; Single part.
5957 ((not (stringp (car handle)))
5958 (gnus-mime-display-single handle))
5959 ;; User-defined multipart
5960 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5961 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
5962 handle))
5963 ;; multipart/alternative
5964 ((and (equal (car handle) "multipart/alternative")
5965 (not (or gnus-mime-display-multipart-as-mixed
5966 gnus-mime-display-multipart-alternative-as-mixed)))
5967 (let ((id (1+ (length gnus-article-mime-handle-alist))))
5968 (push (cons id handle) gnus-article-mime-handle-alist)
5969 (gnus-mime-display-alternative (cdr handle) nil nil id)))
5970 ;; multipart/related
5971 ((and (equal (car handle) "multipart/related")
5972 (not (or gnus-mime-display-multipart-as-mixed
5973 gnus-mime-display-multipart-related-as-mixed)))
5974 (gnus-mime-display-part (cadr handle)))
5975 ((equal (car handle) "multipart/signed")
5976 (gnus-add-wash-type 'signed)
5977 (gnus-mime-display-security handle))
5978 ((equal (car handle) "multipart/encrypted")
5979 (gnus-add-wash-type 'encrypted)
5980 (gnus-mime-display-security handle))
5981 ;; Other multiparts are handled like multipart/mixed.
5982 (t
5983 (gnus-mime-display-mixed (cdr handle)))))
5985 (defun gnus-mime-part-function (handles)
5986 (if (stringp (car handles))
5987 (mapcar 'gnus-mime-part-function (cdr handles))
5988 (funcall gnus-article-mime-part-function handles)))
5990 (defun gnus-mime-display-mixed (handles)
5991 (mapcar 'gnus-mime-display-part handles))
5993 (defun gnus-mime-display-single (handle)
5994 (let ((type (mm-handle-media-type handle))
5995 (ignored gnus-ignored-mime-types)
5996 (not-attachment t)
5997 display text)
5998 (catch 'ignored
5999 (progn
6000 (while ignored
6001 (when (string-match (pop ignored) type)
6002 (throw 'ignored nil)))
6003 (if (and (not (and (if (gnus-buffer-live-p gnus-summary-buffer)
6004 (with-current-buffer gnus-summary-buffer
6005 gnus-inhibit-images)
6006 gnus-inhibit-images)
6008 (setq not-attachment
6009 (and (not (mm-inline-override-p handle))
6010 (or (not (mm-handle-disposition handle))
6011 (equal (car (mm-handle-disposition handle))
6012 "inline")
6013 (mm-attachment-override-p handle))))
6014 (mm-automatic-display-p handle)
6015 (or (and
6016 (mm-inlinable-p handle)
6017 (mm-inlined-p handle))
6018 (mm-automatic-external-display-p type)))
6019 (setq display t)
6020 (when (equal (mm-handle-media-supertype handle) "text")
6021 (setq text t)))
6022 (let ((id (car (rassq handle gnus-article-mime-handle-alist)))
6023 beg)
6024 (unless id
6025 (setq id (1+ (length gnus-article-mime-handle-alist)))
6026 (push (cons id handle) gnus-article-mime-handle-alist))
6027 (when (and display
6028 (equal (mm-handle-media-supertype handle) "message"))
6029 (insert-char
6031 (cond ((not (bolp)) 2)
6033 (t 1))))
6034 (when (or (not display)
6035 (not (gnus-unbuttonized-mime-type-p type))
6036 (eq id gnus-mime-buttonized-part-id))
6037 (gnus-insert-mime-button
6038 handle id (list (or display (and not-attachment text)))))
6039 (setq beg (point))
6040 (cond
6041 (display
6042 (let ((mail-parse-charset gnus-newsgroup-charset)
6043 (mail-parse-ignored-charsets
6044 (save-excursion (condition-case ()
6045 (set-buffer gnus-summary-buffer)
6046 (error))
6047 gnus-newsgroup-ignored-charsets)))
6048 (gnus-bind-mm-vars (mm-display-part handle t))))
6049 ((and text not-attachment)
6050 (mm-display-inline handle)))
6051 (goto-char (point-max))
6053 (gnus-article-insert-newline)
6054 (if (prog1
6056 (unless (eobp) (forward-char 1)))
6057 (gnus-article-insert-newline)
6058 (put-text-property (point) (point-max) 'gnus-undeletable t))
6059 (goto-char (point-max)))
6060 ;; Do highlighting.
6061 (save-excursion
6062 (save-restriction
6063 (narrow-to-region beg (point))
6064 (if (eq handle gnus-article-mime-handles)
6065 ;; The format=flowed case.
6066 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
6067 ;; Don't count signature parts that are never displayed.
6068 ;; The part number should be re-calculated supposing this
6069 ;; might be a message/rfc822 part.
6070 (let (handles)
6071 (dolist (part gnus-article-mime-handles)
6072 (unless (or (stringp part)
6073 (equal (car (mm-handle-type part))
6074 "application/pgp-signature"))
6075 (push part handles)))
6076 (gnus-treat-article
6077 nil (length (memq handle handles)) (length handles)
6078 (mm-handle-media-type handle)))))))))))
6080 (defun gnus-unbuttonized-mime-type-p (type)
6081 "Say whether TYPE is to be unbuttonized."
6082 (unless gnus-inhibit-mime-unbuttonizing
6083 (when (catch 'found
6084 (let ((types gnus-unbuttonized-mime-types))
6085 (while types
6086 (when (string-match (pop types) type)
6087 (throw 'found t)))))
6088 (not (catch 'found
6089 (let ((types gnus-buttonized-mime-types))
6090 (while types
6091 (when (string-match (pop types) type)
6092 (throw 'found t)))))))))
6094 (defun gnus-article-insert-newline ()
6095 "Insert a newline, but mark it as undeletable."
6098 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
6099 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
6100 (ihandles handles)
6101 (point (point))
6102 handle (inhibit-read-only t) from begend not-pref)
6103 (save-window-excursion
6104 (save-restriction
6105 (when ibegend
6106 (narrow-to-region (car ibegend)
6107 (or (cdr ibegend)
6108 (progn
6109 (goto-char (car ibegend))
6110 (forward-line 2)
6111 (point))))
6112 (delete-region (point-min) (point-max))
6113 (mm-remove-parts handles))
6114 (setq begend (list (point-marker)))
6115 ;; Do the toggle.
6116 (unless (setq not-pref (cadr (member preferred ihandles)))
6117 (setq not-pref (car ihandles)))
6118 (when (or ibegend
6119 (not preferred)
6120 (not (gnus-unbuttonized-mime-type-p
6121 "multipart/alternative")))
6122 (add-text-properties
6123 (setq from (point))
6124 (progn
6125 (insert (format "%d. " id))
6126 (point))
6127 `(gnus-callback
6128 (lambda (handles)
6129 (unless ,(not ibegend)
6130 (setq gnus-article-mime-handle-alist
6131 ',gnus-article-mime-handle-alist))
6132 (gnus-mime-display-alternative
6133 ',ihandles ',not-pref ',begend ,id))
6134 keymap ,gnus-mime-button-map
6135 mouse-face ,gnus-article-mouse-face
6136 face ,gnus-article-button-face
6137 gnus-part ,id
6138 article-type multipart
6139 rear-nonsticky t))
6140 (widget-convert-button 'link from (point)
6141 :action 'gnus-widget-press-button)
6142 ;; Do the handles
6143 (while (setq handle (pop handles))
6144 (add-text-properties
6145 (setq from (point))
6146 (progn
6147 (insert (format "(%c) %-18s"
6148 (if (equal handle preferred) ?* ? )
6149 (mm-handle-media-type handle)))
6150 (point))
6151 `(gnus-callback
6152 (lambda (handles)
6153 (unless ,(not ibegend)
6154 (setq gnus-article-mime-handle-alist
6155 ',gnus-article-mime-handle-alist))
6156 (gnus-mime-display-alternative
6157 ',ihandles ',handle ',begend ,id))
6158 keymap ,gnus-mime-button-map
6159 mouse-face ,gnus-article-mouse-face
6160 face ,gnus-article-button-face
6161 gnus-part ,id
6162 gnus-data ,handle
6163 rear-nonsticky t))
6164 (widget-convert-button 'link from (point)
6165 :action 'gnus-widget-press-button)
6166 (insert " "))
6168 (when preferred
6169 (if (stringp (car preferred))
6170 (gnus-display-mime preferred)
6171 (let ((mail-parse-charset gnus-newsgroup-charset)
6172 (mail-parse-ignored-charsets
6173 (with-current-buffer gnus-summary-buffer
6174 gnus-newsgroup-ignored-charsets)))
6175 (gnus-bind-mm-vars (mm-display-part preferred))
6176 ;; Do highlighting.
6177 (save-excursion
6178 (save-restriction
6179 (narrow-to-region (car begend) (point-max))
6180 (gnus-treat-article
6181 nil (length gnus-article-mime-handle-alist)
6182 (gnus-article-mime-total-parts)
6183 (mm-handle-media-type preferred))))))
6184 (goto-char (point-max))
6185 (setcdr begend (point-marker)))))
6186 (when ibegend
6187 (goto-char point)))
6188 ;; Redraw attachment buttons in the header.
6189 (when gnus-mime-display-attachment-buttons-in-header
6190 (gnus-mime-buttonize-attachments-in-header)))
6192 (defconst gnus-article-wash-status-strings
6193 (let ((alist '((cite "c" "Possible hidden citation text"
6194 " " "All citation text visible")
6195 (headers "h" "Hidden headers"
6196 " " "All headers visible.")
6197 (pgp "p" "Encrypted or signed message status hidden"
6198 " " "No hidden encryption nor digital signature status")
6199 (signature "s" "Signature has been hidden"
6200 " " "Signature is visible")
6201 (overstrike "o" "Overstrike (^H) characters applied"
6202 " " "No overstrike characters applied")
6203 (emphasis "e" "/*_Emphasis_*/ characters applied"
6204 " " "No /*_emphasis_*/ characters applied")))
6205 result)
6206 (dolist (entry alist result)
6207 (let ((key (nth 0 entry))
6208 (on (copy-sequence (nth 1 entry)))
6209 (on-help (nth 2 entry))
6210 (off (copy-sequence (nth 3 entry)))
6211 (off-help (nth 4 entry)))
6212 (put-text-property 0 1 'help-echo on-help on)
6213 (put-text-property 0 1 'help-echo off-help off)
6214 (push (list key on off) result))))
6215 "Alist of strings describing wash status in the mode line.
6216 Each entry has the form (KEY ON OF), where the KEY is a symbol
6217 representing the particular washing function, ON is the string to use
6218 in the article mode line when the washing function is active, and OFF
6219 is the string to use when it is inactive.")
6221 (defun gnus-article-wash-status-entry (key value)
6222 (let ((entry (assoc key gnus-article-wash-status-strings)))
6223 (if value (nth 1 entry) (nth 2 entry))))
6225 (defun gnus-article-wash-status ()
6226 "Return a string which display status of article washing."
6227 (with-current-buffer gnus-article-buffer
6228 (let ((cite (memq 'cite gnus-article-wash-types))
6229 (headers (memq 'headers gnus-article-wash-types))
6230 (boring (memq 'boring-headers gnus-article-wash-types))
6231 (pgp (memq 'pgp gnus-article-wash-types))
6232 (pem (memq 'pem gnus-article-wash-types))
6233 (signed (memq 'signed gnus-article-wash-types))
6234 (encrypted (memq 'encrypted gnus-article-wash-types))
6235 (signature (memq 'signature gnus-article-wash-types))
6236 (overstrike (memq 'overstrike gnus-article-wash-types))
6237 (emphasis (memq 'emphasis gnus-article-wash-types)))
6238 (concat
6239 (gnus-article-wash-status-entry 'cite cite)
6240 (gnus-article-wash-status-entry 'headers (or headers boring))
6241 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
6242 (gnus-article-wash-status-entry 'signature signature)
6243 (gnus-article-wash-status-entry 'overstrike overstrike)
6244 (gnus-article-wash-status-entry 'emphasis emphasis)))))
6246 (defun gnus-add-wash-type (type)
6247 "Add a washing of TYPE to the current status."
6248 (add-to-list 'gnus-article-wash-types type))
6250 (defun gnus-delete-wash-type (type)
6251 "Add a washing of TYPE to the current status."
6252 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
6254 (defun gnus-add-image (category image)
6255 "Add IMAGE of CATEGORY to the list of displayed images."
6256 (let ((entry (assq category gnus-article-image-alist)))
6257 (unless entry
6258 (setq entry (list category))
6259 (push entry gnus-article-image-alist))
6260 (nconc entry (list image))))
6262 (defun gnus-delete-images (category)
6263 "Delete all images in CATEGORY."
6264 (let ((entry (assq category gnus-article-image-alist)))
6265 (dolist (image (cdr entry))
6266 (gnus-remove-image image category))
6267 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
6268 (gnus-delete-wash-type category)))
6270 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6272 (defun gnus-article-maybe-hide-headers ()
6273 "Hide unwanted headers if `gnus-have-all-headers' is nil.
6274 Provided for backwards compatibility."
6275 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
6276 (not (with-current-buffer gnus-summary-buffer
6277 gnus-have-all-headers)))
6278 (not gnus-inhibit-hiding))
6279 (article-hide-headers)))
6281 (declare-function shr-put-image "shr" (data alt &optional flags))
6283 (defun gnus-shr-put-image (data alt &optional flags)
6284 "Put image DATA with a string ALT. Enable image to be deleted."
6285 (let ((image (if flags
6286 (shr-put-image data (propertize (or alt "*")
6287 'gnus-image-category 'shr)
6288 flags)
6289 ;; Old `shr-put-image' doesn't take the optional `flags'
6290 ;; argument.
6291 (shr-put-image data (propertize (or alt "*")
6292 'gnus-image-category 'shr)))))
6293 (when image
6294 (gnus-add-image 'shr image))))
6296 (defun gnus-article-mime-handles (&optional alist id all)
6297 (if alist
6298 (let ((i 1) newid flat)
6299 (dolist (handle alist flat)
6300 (setq newid (append id (list i))
6301 i (1+ i))
6302 (if (stringp (car handle))
6303 (setq flat (nconc flat (gnus-article-mime-handles
6304 (cdr handle) newid all)))
6305 (delq (rassq handle all) all)
6306 (setq flat (nconc flat (list (cons newid handle)))))))
6307 (let ((flat (list nil)))
6308 ;; Assume that elements of `gnus-article-mime-handle-alist'
6309 ;; are in the decreasing order, but unnumbered subsidiaries
6310 ;; in each element are in the increasing order.
6311 (dolist (handle (reverse gnus-article-mime-handle-alist))
6312 (if (stringp (cadr handle))
6313 (setq flat (nconc flat (gnus-article-mime-handles
6314 (cddr handle) (list (car handle)) flat)))
6315 (delq (rassq (cdr handle) flat) flat)
6316 (setq flat (nconc flat (list (cons (list (car handle))
6317 (cdr handle)))))))
6318 (setq flat (cdr flat))
6319 (mapc (lambda (handle)
6320 (if (cdar handle)
6321 ;; This is a hidden (i.e. unnumbered) handle.
6322 (progn
6323 (setcar handle
6324 (1+ (caar gnus-article-mime-handle-alist)))
6325 (push handle gnus-article-mime-handle-alist))
6326 (setcar handle (caar handle))))
6327 flat)
6328 flat)))
6330 (defun gnus-mime-buttonize-attachments-in-header (&optional interactive)
6331 "Show attachments as buttons in the end of the header of an article.
6332 This function toggles the display when called interactively. Note that
6333 buttons to be added to the header are only the ones that aren't inlined
6334 in the body. Use `gnus-header-face-alist' to highlight buttons."
6335 (interactive (list t))
6336 (gnus-with-article-buffer
6337 (let ((case-fold-search t) buttons handle type st)
6338 (save-excursion
6339 (save-restriction
6340 (widen)
6341 (article-narrow-to-head)
6342 ;; Header buttons exist?
6343 (while (and (not buttons)
6345 (when (get-char-property (match-end 0)
6346 'gnus-button-attachment-extra)
6347 (setq buttons (match-beginning 0))))
6348 (widen)
6349 (when buttons
6350 ;; Delete header buttons.
6351 (delete-region buttons (if (re-search-forward "^[^ ]" nil t)
6352 (match-beginning 0)
6353 (point-max))))
6354 (unless (and interactive buttons)
6355 ;; Find buttons.
6356 (setq buttons nil)
6357 (dolist (button (gnus-article-mime-handles))
6358 (setq handle (cdr button)
6359 type (mm-handle-media-type handle))
6360 (when (or (and (if (gnus-buffer-live-p gnus-summary-buffer)
6361 (with-current-buffer gnus-summary-buffer
6362 gnus-inhibit-images)
6363 gnus-inhibit-images)
6365 (mm-inline-override-p handle)
6366 (and (mm-handle-disposition handle)
6367 (not (equal (car (mm-handle-disposition handle))
6368 "inline"))
6369 (not (mm-attachment-override-p handle)))
6370 (not (mm-automatic-display-p handle))
6371 (not (or (and (mm-inlinable-p handle)
6372 (mm-inlined-p handle))
6373 (mm-automatic-external-display-p type))))
6374 (push button buttons)))
6375 (when buttons
6376 ;; Add header buttons.
6377 (article-goto-body)
6378 (forward-line -1)
6379 (narrow-to-region (point) (point))
6380 (insert "Attachment" (if (cdr buttons) "s" "") ":")
6381 (dolist (button (nreverse buttons))
6382 (setq st (point))
6383 (insert " ")
6384 (mm-handle-set-undisplayer (setq handle (cdr button)) nil)
6385 (gnus-insert-mime-button handle (car button))
6387 (delete-region (point) (point-max))
6388 (when (> (current-column) (window-width))
6389 (goto-char st)
6391 (end-of-line)))
6393 (dolist (ovl (overlays-in (point-min) (point)))
6394 (overlay-put ovl 'gnus-button-attachment-extra t)
6395 (overlay-put ovl 'face nil))
6396 (let ((gnus-treatment-function-alist
6397 '((gnus-treat-highlight-headers
6398 gnus-article-highlight-headers))))
6399 (gnus-treat-article 'head)))))))))
6401 ;;; Article savers.
6403 (defun gnus-output-to-file (file-name)
6404 "Append the current article to a file named FILE-NAME.
6405 If `gnus-article-save-coding-system' is non-nil, it is used to encode
6406 text and used as the value of the coding cookie which is added to the
6407 top of a file. Otherwise, this function saves a raw article without
6408 the coding cookie."
6409 (let* ((artbuf (current-buffer))
6410 (file-name-coding-system nnmail-pathname-coding-system)
6411 (coding gnus-article-save-coding-system)
6412 (coding-system-for-read (if coding
6413 nil ;; Rely on the coding cookie.
6414 mm-text-coding-system))
6415 (coding-system-for-write (or coding
6416 mm-text-coding-system-for-write
6417 mm-text-coding-system))
6418 (exists (file-exists-p file-name)))
6419 (with-temp-buffer
6420 (when exists
6421 (insert-file-contents file-name)
6422 (goto-char (point-min))
6423 ;; Remove the existing coding cookie.
6425 (delete-region (match-beginning 0) (match-end 0))))
6426 (goto-char (point-max))
6427 (insert-buffer-substring artbuf)
6428 ;; Append newline at end of the buffer as separator, and then
6429 ;; save it to file.
6430 (goto-char (point-max))
6432 (when coding
6433 ;; If the coding system is not suitable to encode the text,
6434 ;; ask a user for a proper one.
6435 (setq coding (coding-system-base
6436 (save-window-excursion
6437 (select-safe-coding-system (point-min) (point-max)
6438 coding))))
6439 (setq coding-system-for-write
6440 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
6441 coding))
6442 (goto-char (point-min))
6443 ;; Add the coding cookie.
6445 coding-system-for-write)))
6446 (if exists
6447 (progn
6448 (write-region (point-min) (point-max) file-name nil 'no-message)
6449 (message "Appended to %s" file-name))
6450 (write-region (point-min) (point-max) file-name))))
6451 t)
6453 (defun gnus-narrow-to-page (&optional arg)
6454 "Narrow the article buffer to a page.
6455 If given a numerical ARG, move forward ARG pages."
6456 (interactive "P")
6457 (setq arg (if arg (prefix-numeric-value arg) 0))
6458 (with-current-buffer gnus-article-buffer
6459 (widen)
6460 ;; Remove any old next/prev buttons.
6461 (when (gnus-visual-p 'page-marker)
6462 (let ((inhibit-read-only t))
6463 (gnus-remove-text-with-property 'gnus-prev)
6464 (gnus-remove-text-with-property 'gnus-next)))
6465 (let (st nd pt)
6466 (when (save-excursion
6467 (cond ((< arg 0)
6468 (if (re-search-backward page-delimiter nil 'move (abs arg))
6469 (prog1
6470 (setq nd (match-beginning 0)
6471 pt nd)
6472 (when (re-search-backward page-delimiter nil t)
6473 (setq st (match-end 0))))
6474 (when (re-search-forward page-delimiter nil t)
6475 (setq nd (match-beginning 0)
6476 pt (point-min)))))
6477 ((> arg 0)
6478 (if (re-search-forward page-delimiter nil 'move arg)
6479 (prog1
6480 (setq st (match-end 0)
6481 pt st)
6482 (when (re-search-forward page-delimiter nil t)
6483 (setq nd (match-beginning 0))))
6484 (when (re-search-backward page-delimiter nil t)
6485 (setq st (match-end 0)
6486 pt (point-max)))))
6487 (t
6488 (when (re-search-backward page-delimiter nil t)
6489 (goto-char (setq st (match-end 0))))
6490 (when (re-search-forward page-delimiter nil t)
6491 (setq nd (match-beginning 0)))
6492 (or st nd))))
6493 (setq gnus-page-broken t)
6494 (when pt (goto-char pt))
6495 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6496 (when (gnus-visual-p 'page-marker)
6497 (save-excursion
6498 (when nd
6499 (goto-char nd)
6500 (gnus-insert-next-page-button))
6501 (when st
6502 (goto-char st)
6503 (gnus-insert-prev-page-button))))))))
6505 ;; Article mode commands
6507 (defun gnus-article-goto-next-page ()
6508 "Show the next page of the article."
6509 (interactive)
6510 (when (gnus-article-next-page)
6511 (goto-char (point-min))
6512 (gnus-article-read-summary-keys nil ?n)))
6515 (defun gnus-article-goto-prev-page ()
6516 "Show the previous page of the article."
6517 (interactive)
6518 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6519 (gnus-article-read-summary-keys nil ?p)
6520 (gnus-article-prev-page nil)))
6522 ;; This is cleaner but currently breaks `gnus-pick-mode':
6523 ;;
6524 ;; (defun gnus-article-goto-next-page ()
6525 ;; "Show the next page of the article."
6526 ;; (interactive)
6527 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6528 ;; (gnus-summary-next-page)))
6529 ;;
6530 ;; (defun gnus-article-goto-prev-page ()
6531 ;; "Show the next page of the article."
6532 ;; (interactive)
6533 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6534 ;; (gnus-summary-prev-page)))
6536 (defun gnus-article-next-page (&optional lines)
6537 "Show the next page of the current article.
6538 If end of article, return non-nil. Otherwise return nil.
6539 Argument LINES specifies lines to be scrolled up."
6540 (interactive "p")
6541 (move-to-window-line (- -1 scroll-margin))
6542 (if (and (not (and gnus-article-over-scroll
6543 (> (count-lines (window-start) (point-max))
6544 (+ (or lines (1- (window-height))) scroll-margin))))
6545 (save-excursion
6546 (end-of-line)
6547 (and (pos-visible-in-window-p) ;Not continuation line.
6548 (>= (point) (point-max)))))
6549 ;; Nothing in this page.
6550 (if (or (not gnus-page-broken)
6551 (save-excursion
6552 (save-restriction
6553 (widen)
6554 (forward-line)
6555 (eobp)))) ;Real end-of-buffer?
6556 (progn
6557 (when gnus-article-over-scroll
6558 (gnus-article-next-page-1 lines))
6559 t) ;Nothing more.
6560 (gnus-narrow-to-page 1) ;Go to next page.
6561 nil)
6562 ;; More in this page.
6563 (gnus-article-next-page-1 lines)
6564 nil))
6566 (defun gnus-article-beginning-of-window ()
6567 "Move point to the beginning of the window.
6568 The point is placed at the line number which `scroll-margin'
6569 specifies."
6570 ;; There is an obscure bug in Emacs that makes it impossible to
6571 ;; scroll past big pictures in the article buffer. Try to fix
6572 ;; this by adding a sanity check by counting the lines visible.
6573 (when (> (count-lines (window-start) (window-end)) 30)
6574 (move-to-window-line
6575 (min (max 0 scroll-margin)
6576 (max 1 (- (window-height)
6577 (if mode-line-format 1 0)
6578 (if header-line-format 1 0)
6579 2))))))
6581 (defvar scroll-in-place)
6583 (defun gnus-article-next-page-1 (lines)
6584 (condition-case ()
6585 (let ((scroll-in-place nil)
6586 (auto-window-vscroll nil))
6587 (scroll-up lines))
6588 (end-of-buffer
6589 ;; Long lines may cause an end-of-buffer error.
6590 (goto-char (point-max))))
6591 (gnus-article-beginning-of-window))
6593 (defun gnus-article-prev-page (&optional lines)
6594 "Show previous page of current article.
6595 Argument LINES specifies lines to be scrolled down."
6596 (interactive "p")
6597 (move-to-window-line 0)
6598 (if (and gnus-page-broken
6599 (bobp)
6600 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6601 (progn
6602 (gnus-narrow-to-page -1) ;Go to previous page.
6603 (goto-char (point-max))
6604 (recenter (if gnus-article-over-scroll
6605 (if lines
6606 (max (+ lines scroll-margin) 3)
6607 (- (window-height) 2))
6608 -1)))
6609 (prog1
6610 (condition-case ()
6611 (let ((scroll-in-place nil))
6612 (scroll-down lines))
6613 (beginning-of-buffer
6614 (goto-char (point-min))))
6615 (gnus-article-beginning-of-window))))
6617 (defun gnus-article-only-boring-p ()
6618 "Decide whether there is only boring text remaining in the article.
6620 not have a face in `gnus-article-boring-faces'."
6621 (when (and gnus-article-skip-boring
6622 (boundp 'gnus-article-boring-faces)
6623 (symbol-value 'gnus-article-boring-faces))
6624 (save-excursion
6625 (let ((inhibit-point-motion-hooks t))
6626 (catch 'only-boring
6628 (forward-char -1)
6629 (when (not (gnus-intersection
6630 (gnus-faces-at (point))
6631 (symbol-value 'gnus-article-boring-faces)))
6632 (throw 'only-boring nil)))
6633 (throw 'only-boring t))))))
6635 (defun gnus-article-refer-article ()
6636 "Read article specified by message-id around point."
6637 (interactive)
6638 (save-excursion
6642 (let ((msg-id (concat "<" (match-string 0) ">")))
6643 (set-buffer gnus-summary-buffer)
6644 (gnus-summary-refer-article msg-id))
6645 (error "No references around point"))))
6647 (defun gnus-article-show-summary ()
6648 "Reconfigure windows to show summary buffer."
6649 (interactive)
6650 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6651 (error "There is no summary buffer for this article buffer")
6652 (gnus-article-set-globals)
6653 (gnus-configure-windows 'article)
6654 (gnus-summary-goto-subject gnus-current-article)
6655 (gnus-summary-position-point)))
6657 (defun gnus-article-describe-briefly ()
6658 "Describe article mode commands briefly."
6659 (interactive)
6660 (gnus-message 6 "%s" (substitute-command-keys "\\<gnus-article-mode-map>\\[gnus-article-goto-next-page]:Next page \\[gnus-article-goto-prev-page]:Prev page \\[gnus-article-show-summary]:Show summary \\[gnus-info-find-node]:Run Info \\[gnus-article-describe-briefly]:This help")))
6662 (defun gnus-article-check-buffer ()
6663 "Beep if not in an article buffer."
6664 (unless (derived-mode-p 'gnus-article-mode)
6665 (error "Command invoked outside of a Gnus article buffer")))
6667 (defvar gnus-pick-mode)
6669 (defun gnus-article-read-summary-keys (&optional _arg key not-restore-window)
6670 "Read a summary buffer key sequence and execute it from the article buffer."
6671 (interactive "P")
6672 (gnus-article-check-buffer)
6673 (let ((nosaves
6674 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6675 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6676 "=" "^" "\M-^" "|"))
6677 (nosave-but-article
6679 "An" "Ap" [?A (meta return)] [?A delete]))
6680 (nosave-in-article
6681 '("AS" "\C-d"))
6682 keys new-sum-point)
6683 (with-current-buffer gnus-article-current-summary
6684 (let (gnus-pick-mode)
6685 (setq unread-command-events (nconc unread-command-events
6686 (list (or key last-command-event)))
6687 keys (read-key-sequence nil t))))
6689 (message "")
6691 (cond
6692 ((eq (aref keys (1- (length keys))) ?\C-h)
6693 (gnus-article-describe-bindings (substring keys 0 -1)))
6694 ((or (member keys nosaves)
6695 (member keys nosave-but-article)
6696 (member keys nosave-in-article))
6697 (let (func)
6698 (save-window-excursion
6699 (pop-to-buffer gnus-article-current-summary)
6700 ;; We disable the pick minor mode commands.
6701 (let (gnus-pick-mode)
6702 (setq func (key-binding keys t))))
6703 (if (or (not func)
6704 (numberp func))
6705 (ding)
6706 (unless (member keys nosave-in-article)
6707 (set-buffer gnus-article-current-summary))
6708 (when (and (symbolp func)
6709 (get func 'disabled))
6710 (error "Function %s disabled" func))
6711 (call-interactively func)
6712 (setq new-sum-point (point)))
6713 (when (member keys nosave-but-article)
6714 (pop-to-buffer gnus-article-buffer))))
6715 (t
6716 ;; These commands should restore window configuration.
6717 (let ((obuf (current-buffer))
6718 (owin (current-window-configuration))
6719 win func in-buffer selected new-sum-start new-sum-hscroll err)
6720 (cond (not-restore-window
6721 (pop-to-buffer gnus-article-current-summary)
6722 (setq win (selected-window)))
6723 ((setq win (get-buffer-window gnus-article-current-summary))
6724 (select-window win))
6725 (t
6726 (let ((summary-buffer gnus-article-current-summary))
6727 (gnus-configure-windows 'article)
6728 (unless (setq win (get-buffer-window summary-buffer 'visible))
6729 (let ((gnus-buffer-configuration
6730 '((article ((vertical 1.0
6731 (summary 0.25 point)
6732 (article 1.0)))))))
6733 (gnus-configure-windows 'article))
6734 (setq win (get-buffer-window summary-buffer 'visible)))
6735 (select-frame-set-input-focus (window-frame win))
6736 (select-window win))))
6737 (setq in-buffer (current-buffer))
6738 ;; We disable the pick minor mode commands.
6739 (setq func (let (gnus-pick-mode)
6740 (key-binding keys t)))
6741 (when (get func 'disabled)
6742 (error "Function %s disabled" func))
6743 (if (and func
6744 (functionp func)
6745 (condition-case code
6746 (progn
6747 (call-interactively func)
6748 t)
6749 (error
6750 (setq err code)
6751 nil)))
6752 (progn
6753 (when (eq win (selected-window))
6754 (setq new-sum-point (point)
6755 new-sum-start (window-start win)
6756 new-sum-hscroll (window-hscroll win)))
6757 (when (or (eq in-buffer (current-buffer))
6758 (when (eq obuf (current-buffer))
6759 (set-buffer in-buffer)
6760 t))
6761 (setq selected (ignore-errors (gnus-summary-select-article)))
6762 (set-buffer obuf)
6763 (unless not-restore-window
6764 (set-window-configuration owin))
6765 (when (and (eq selected 'old)
6766 new-sum-point)
6767 (set-window-start (get-buffer-window (current-buffer))
6768 1)
6769 (set-window-point (get-buffer-window (current-buffer))
6770 (if (article-goto-body)
6771 (1- (point))
6772 (point))))
6773 (when (and (not not-restore-window)
6774 new-sum-point
6775 (window-live-p win)
6776 (with-current-buffer (window-buffer win)
6777 (derived-mode-p 'gnus-summary-mode)))
6778 (set-window-point win new-sum-point)
6779 (set-window-start win new-sum-start)
6780 (set-window-hscroll win new-sum-hscroll))))
6781 (set-window-configuration owin)
6782 (if err
6783 (signal (car err) (cdr err))
6784 (ding))))))))
6786 (defun gnus-article-read-summary-send-keys ()
6787 (interactive)
6788 (let ((unread-command-events (list ?S)))
6789 (gnus-article-read-summary-keys)))
6791 (defun gnus-article-describe-key (key)
6792 "Display documentation of the function invoked by KEY.
6793 KEY is a string or a vector."
6794 (interactive (list (let ((cursor-in-echo-area t))
6795 (read-key-sequence "Describe key: "))))
6796 (gnus-article-check-buffer)
6797 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6798 gnus-article-read-summary-send-keys))
6799 (with-current-buffer gnus-article-current-summary
6800 (setq unread-command-events
6801 (nconc
6802 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6803 (list 'meta (- x 128))
6804 x))
6805 key)
6806 unread-command-events))
6807 (let ((cursor-in-echo-area t)
6808 gnus-pick-mode)
6809 (describe-key (read-key-sequence nil t))))
6810 (describe-key key)))
6812 (defun gnus-article-describe-key-briefly (key &optional insert)
6813 "Display documentation of the function invoked by KEY.
6814 KEY is a string or a vector."
6815 (interactive (list (let ((cursor-in-echo-area t))
6816 (read-key-sequence "Describe key: "))
6817 current-prefix-arg))
6818 (gnus-article-check-buffer)
6819 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6820 gnus-article-read-summary-send-keys))
6821 (with-current-buffer gnus-article-current-summary
6822 (setq unread-command-events
6823 (nconc
6824 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6825 (list 'meta (- x 128))
6826 x))
6827 key)
6828 unread-command-events))
6829 (let ((cursor-in-echo-area t)
6830 gnus-pick-mode)
6831 (describe-key-briefly (read-key-sequence nil t) insert)))
6832 (describe-key-briefly key insert)))
6834 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6835 (defvar gnus-agent-summary-mode)
6836 (defvar gnus-draft-mode)
6837 (defvar help-xref-stack-item)
6838 (defvar help-xref-following)
6840 (defun gnus-article-describe-bindings (&optional prefix)
6841 "Show a list of all defined keys, and their definitions.
6842 The optional argument PREFIX, if non-nil, should be a key sequence;
6843 then we display only bindings that start with that prefix."
6844 (interactive)
6845 (gnus-article-check-buffer)
6846 (let ((keymap (copy-keymap gnus-article-mode-map))
6847 (map (copy-keymap gnus-article-send-map))
6848 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6849 parent agent draft)
6850 (define-key keymap "S" map)
6851 (define-key map [t] nil)
6852 (with-current-buffer gnus-article-current-summary
6853 (set-keymap-parent
6854 keymap
6855 (if (setq parent (keymap-parent gnus-article-mode-map))
6856 (prog1
6857 (setq parent (copy-keymap parent))
6858 (set-keymap-parent parent (current-local-map)))
6859 (current-local-map)))
6860 (set-keymap-parent map (key-binding "S"))
6861 (let (key def gnus-pick-mode)
6862 (while sumkeys
6863 (setq key (pop sumkeys))
6864 (cond ((and (vectorp key) (= (length key) 1)
6865 (consp (setq def (aref key 0)))
6866 (numberp (car def)) (numberp (cdr def)))
6867 (when (< (max (car def) (cdr def)) 128)
6868 (setq sumkeys
6869 (append (mapcar
6870 #'vector
6871 (nreverse (gnus-uncompress-range def)))
6872 sumkeys))))
6873 ((setq def (key-binding key))
6874 (unless (eq def 'undefined)
6875 (define-key keymap key def))))))
6876 (when (boundp 'gnus-agent-summary-mode)
6877 (setq agent gnus-agent-summary-mode))
6878 (when (boundp 'gnus-draft-mode)
6879 (setq draft gnus-draft-mode)))
6880 (with-temp-buffer
6881 (use-local-map keymap)
6882 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6883 (set (make-local-variable 'gnus-draft-mode) draft)
6884 (describe-bindings prefix))
6885 (let ((item `((lambda (prefix)
6886 (with-current-buffer ,(current-buffer)
6887 (gnus-article-describe-bindings prefix)))
6888 ,prefix)))
6889 ;; Loading `help-mode' here is necessary if `describe-bindings'
6890 ;; is replaced with something, e.g. `helm-descbinds'.
6891 (require 'help-mode)
6892 (with-current-buffer (let (help-xref-following) (help-buffer))
6893 (setq help-xref-stack-item item)))))
6895 (defun gnus-article-reply-with-original (&optional wide)
6896 "Start composing a reply mail to the current message.
6897 The text in the region will be yanked. If the region isn't active,
6898 the entire article will be yanked."
6899 (interactive)
6900 (let ((article (cdr gnus-article-current))
6901 contents)
6902 (if (not (and transient-mark-mode mark-active))
6903 (with-current-buffer gnus-summary-buffer
6904 (gnus-summary-reply (list (list article)) wide))
6905 (setq contents (buffer-substring (point) (mark t)))
6906 ;; Deactivate active regions.
6907 (when transient-mark-mode
6908 (setq mark-active nil))
6909 (with-current-buffer gnus-summary-buffer
6910 (gnus-summary-reply
6911 (list (list article contents)) wide)))))
6913 (defun gnus-article-wide-reply-with-original ()
6914 "Start composing a wide reply mail to the current message.
6915 The text in the region will be yanked. If the region isn't active,
6916 the entire article will be yanked."
6917 (interactive)
6918 (gnus-article-reply-with-original t))
6920 (defun gnus-article-followup-with-original ()
6921 "Compose a followup to the current article.
6922 The text in the region will be yanked. If the region isn't active,
6923 the entire article will be yanked."
6924 (interactive)
6925 (let ((article (cdr gnus-article-current))
6926 contents)
6927 (if (not (and transient-mark-mode mark-active))
6928 (with-current-buffer gnus-summary-buffer
6929 (gnus-summary-followup (list (list article))))
6930 (setq contents (buffer-substring (point) (mark t)))
6931 ;; Deactivate active regions.
6932 (when transient-mark-mode
6933 (setq mark-active nil))
6934 (with-current-buffer gnus-summary-buffer
6935 (gnus-summary-followup
6936 (list (list article contents)))))))
6938 (defun gnus-article-hide (&optional arg force)
6939 "Hide all the gruft in the current article.
6940 This means that signatures, cited text and (some) headers will be
6941 hidden.
6942 If given a prefix, show the hidden text instead."
6943 (interactive (append (gnus-article-hidden-arg) (list 'force)))
6944 (gnus-with-article-buffer
6945 (article-hide-headers arg)
6946 (article-hide-list-identifiers)
6947 (gnus-article-hide-citation-maybe arg force)
6948 (article-hide-signature arg)))
6950 (defun gnus-check-group-server ()
6951 ;; Make sure the connection to the server is alive.
6952 (unless (gnus-server-opened
6953 (gnus-find-method-for-group gnus-newsgroup-name))
6954 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
6955 (gnus-request-group gnus-newsgroup-name t)))
6957 (declare-function nneething-get-file-name "nneething" (id))
6959 (defun gnus-request-article-this-buffer (article group)
6960 "Get an article and insert it into this buffer."
6961 (let (do-update-line sparse-header)
6962 (prog1
6963 (save-excursion
6964 (erase-buffer)
6965 (gnus-kill-all-overlays)
6966 (setq group (or group gnus-newsgroup-name))
6968 ;; Using `gnus-request-article' directly will insert the article into
6969 ;; `nntp-server-buffer' - so we'll save some time by not having to
6970 ;; copy it from the server buffer into the article buffer.
6972 ;; We only request an article by message-id when we do not have the
6973 ;; headers for it, so we'll have to get those.
6974 (when (stringp article)
6975 (gnus-read-header article))
6977 ;; If the article number is negative, that means that this article
6978 ;; doesn't belong in this newsgroup (possibly), so we find its
6979 ;; message-id and request it by id instead of number.
6980 (when (and (numberp article)
6981 gnus-summary-buffer
6982 (get-buffer gnus-summary-buffer)
6983 (gnus-buffer-exists-p gnus-summary-buffer))
6984 (with-current-buffer gnus-summary-buffer
6985 (let ((header (gnus-summary-article-header article)))
6986 (when (< article 0)
6987 (cond
6988 ((memq article gnus-newsgroup-sparse)
6989 ;; This is a sparse gap article.
6990 (setq do-update-line article)
6991 (setq article (mail-header-id header))
6992 (setq sparse-header (gnus-read-header article))
6993 (setq gnus-newsgroup-sparse
6994 (delq article gnus-newsgroup-sparse)))
6995 ((vectorp header)
6996 ;; It's a real article.
6997 (setq article (mail-header-id header)))
6998 (t
6999 ;; It is an extracted pseudo-article.
7000 (setq article 'pseudo)
7001 (gnus-request-pseudo-article header))))
7003 (let ((method (gnus-find-method-for-group
7004 gnus-newsgroup-name)))
7005 (when (and (eq (car method) 'nneething)
7006 (vectorp header))
7007 (let ((dir (nneething-get-file-name
7008 (mail-header-id header))))
7009 (when (and (stringp dir)
7010 (file-directory-p dir))
7011 (setq article 'nneething)
7012 (gnus-group-enter-directory dir))))))))
7014 (cond
7015 ;; Refuse to select canceled articles.
7016 ((and (numberp article)
7017 gnus-summary-buffer
7018 (get-buffer gnus-summary-buffer)
7019 (gnus-buffer-exists-p gnus-summary-buffer)
7020 (eq (cdr (with-current-buffer gnus-summary-buffer
7021 (assq article gnus-newsgroup-reads)))
7022 gnus-canceled-mark))
7023 nil)
7024 ;; We first check `gnus-original-article-buffer'.
7025 ((and (get-buffer gnus-original-article-buffer)
7026 (numberp article)
7027 (with-current-buffer gnus-original-article-buffer
7028 (and (equal (car gnus-original-article) group)
7029 (eq (cdr gnus-original-article) article))))
7030 ;; `insert-buffer-substring' would incorrectly use the
7031 ;; equivalent of string-make-multibyte which amount to decoding
7032 ;; with locale-coding-system, causing failure of
7033 ;; subsequent decoding.
7034 (insert (string-to-multibyte
7035 (with-current-buffer gnus-original-article-buffer
7036 (buffer-substring (point-min) (point-max)))))
7037 'article)
7038 ;; Check the backlog.
7039 ((and gnus-keep-backlog
7040 (gnus-backlog-request-article group article (current-buffer)))
7041 'article)
7042 ;; Check asynchronous pre-fetch.
7043 ((gnus-async-request-fetched-article group article (current-buffer))
7044 (gnus-async-prefetch-next group article gnus-summary-buffer)
7045 (when (and (numberp article) gnus-keep-backlog)
7046 (gnus-backlog-enter-article group article (current-buffer)))
7047 'article)
7048 ;; Check the cache.
7049 ((and gnus-use-cache
7050 (numberp article)
7051 (gnus-cache-request-article article group))
7052 'article)
7053 ;; Check the agent cache.
7054 ((gnus-agent-request-article article group)
7055 'article)
7056 ;; Get the article and put into the article buffer.
7057 ((or (stringp article)
7058 (numberp article))
7059 (let ((gnus-override-method gnus-override-method)
7060 (methods (and (stringp article)
7061 (with-current-buffer gnus-summary-buffer
7062 (gnus-refer-article-methods))))
7063 (backend (car (gnus-find-method-for-group
7064 gnus-newsgroup-name)))
7065 result
7066 (inhibit-read-only t))
7067 (when (and (null gnus-override-method)
7068 methods)
7069 (setq gnus-override-method (pop methods)))
7070 (while (not result)
7071 (erase-buffer)
7072 (gnus-kill-all-overlays)
7073 (let ((gnus-newsgroup-name group))
7074 (gnus-check-group-server))
7075 (cond
7076 ((gnus-request-article article group (current-buffer))
7077 (when (numberp article)
7078 (gnus-async-prefetch-next group article
7079 gnus-summary-buffer)
7080 (when gnus-keep-backlog
7081 (gnus-backlog-enter-article
7082 group article (current-buffer)))
7083 (when (and gnus-agent
7084 (gnus-agent-group-covered-p group))
7085 (gnus-agent-store-article article group)))
7086 (setq result 'article))
7087 (methods
7088 (setq gnus-override-method (pop methods)))
7089 ((not (string-match "^400 "
7090 (nnheader-get-report backend)))
7091 ;; If we get 400 server disconnect, reconnect and
7092 ;; retry; otherwise, assume the article has expired.
7093 (setq result 'done))))
7094 (and (eq result 'article) 'article)))
7095 ;; It was a pseudo.
7096 (t article)))
7098 ;; Associate this article with the current summary buffer.
7099 (setq gnus-article-current-summary gnus-summary-buffer)
7101 ;; Take the article from the original article buffer
7102 ;; and place it in the buffer it's supposed to be in.
7103 (when (and (get-buffer gnus-article-buffer)
7104 (equal (buffer-name (current-buffer))
7105 (buffer-name (get-buffer gnus-article-buffer))))
7106 (save-excursion
7107 (if (get-buffer gnus-original-article-buffer)
7108 (set-buffer gnus-original-article-buffer)
7109 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
7110 (buffer-disable-undo)
7111 (setq major-mode 'gnus-original-article-mode)
7112 (setq buffer-read-only t))
7113 (let ((inhibit-read-only t))
7114 (erase-buffer)
7115 (insert-buffer-substring gnus-article-buffer))
7116 (setq gnus-original-article (cons group article)))
7118 ;; Decode charsets.
7119 (run-hooks 'gnus-article-decode-hook)
7120 ;; Mark article as decoded or not.
7121 (setq gnus-article-decoded-p gnus-article-decode-hook))
7123 ;; Update sparse articles.
7124 (when (and do-update-line
7125 (or (numberp article)
7126 (stringp article)))
7127 (let ((buf (current-buffer)))
7128 (set-buffer gnus-summary-buffer)
7129 (gnus-summary-update-article do-update-line sparse-header)
7130 (gnus-summary-goto-subject do-update-line nil t)
7131 (set-window-point (gnus-get-buffer-window (current-buffer) t)
7132 (point))
7133 (set-buffer buf))))))
7135 (defun gnus-block-private-groups (group)
7136 "Allows images in newsgroups to be shown, blocks images in all
7137 other groups."
7138 (if (or (gnus-news-group-p group)
7139 (gnus-member-of-valid 'global group))
7140 ;; Block nothing in news groups.
7141 nil
7142 ;; Block everything anywhere else.
7143 "."))
7145 (defun gnus-blocked-images ()
7146 (if (functionp gnus-blocked-images)
7147 (funcall gnus-blocked-images gnus-newsgroup-name)
7148 gnus-blocked-images))
7150 ;;;
7151 ;;; Article editing
7152 ;;;
7154 (defcustom gnus-article-edit-mode-hook nil
7155 "Hook run in article edit mode buffers."
7156 :group 'gnus-article-various
7157 :type 'hook)
7159 (defvar gnus-article-edit-done-function nil)
7161 (defvar gnus-article-edit-mode-map nil)
7163 ;; Should we be using derived.el for this?
7164 (unless gnus-article-edit-mode-map
7165 (setq gnus-article-edit-mode-map (make-keymap))
7166 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
7168 (gnus-define-keys gnus-article-edit-mode-map
7169 "\C-c?" describe-mode
7170 "\C-c\C-c" gnus-article-edit-done
7171 "\C-c\C-k" gnus-article-edit-exit
7172 "\C-c\C-f\C-t" message-goto-to
7173 "\C-c\C-f\C-o" message-goto-from
7174 "\C-c\C-f\C-b" message-goto-bcc
7175 ;;"\C-c\C-f\C-w" message-goto-fcc
7176 "\C-c\C-f\C-c" message-goto-cc
7177 "\C-c\C-f\C-s" message-goto-subject
7178 "\C-c\C-f\C-r" message-goto-reply-to
7179 "\C-c\C-f\C-n" message-goto-newsgroups
7180 "\C-c\C-f\C-d" message-goto-distribution
7181 "\C-c\C-f\C-f" message-goto-followup-to
7182 "\C-c\C-f\C-m" message-goto-mail-followup-to
7183 "\C-c\C-f\C-k" message-goto-keywords
7184 "\C-c\C-f\C-u" message-goto-summary
7185 "\C-c\C-f\C-i" message-insert-or-toggle-importance
7186 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
7187 "\C-c\C-b" message-goto-body
7188 "\C-c\C-i" message-goto-signature
7190 "\C-c\C-t" message-insert-to
7191 "\C-c\C-n" message-insert-newsgroups
7192 "\C-c\C-o" message-sort-headers
7193 "\C-c\C-e" message-elide-region
7194 "\C-c\C-v" message-delete-not-region
7195 "\C-c\C-z" message-kill-to-signature
7197 "\C-c\C-a" mml-attach-file
7198 "\C-a" message-beginning-of-line
7200 "\M-;" comment-region)
7202 (gnus-define-keys (gnus-article-edit-wash-map
7203 "\C-c\C-w" gnus-article-edit-mode-map)
7204 "f" gnus-article-edit-full-stops))
7206 (easy-menu-define
7207 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
7208 '("Field"
7209 ["Fetch To" message-insert-to t]
7210 ["Fetch Newsgroups" message-insert-newsgroups t]
7211 "----"
7212 ["To" message-goto-to t]
7213 ["From" message-goto-from t]
7214 ["Subject" message-goto-subject t]
7215 ["Cc" message-goto-cc t]
7216 ["Reply-To" message-goto-reply-to t]
7217 ["Summary" message-goto-summary t]
7218 ["Keywords" message-goto-keywords t]
7219 ["Newsgroups" message-goto-newsgroups t]
7220 ["Followup-To" message-goto-followup-to t]
7221 ["Mail-Followup-To" message-goto-mail-followup-to t]
7222 ["Distribution" message-goto-distribution t]
7223 ["Body" message-goto-body t]
7224 ["Signature" message-goto-signature t]))
7226 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
7227 "Major mode for editing articles.
7228 This is an extended text-mode.
7231 (make-local-variable 'gnus-article-edit-done-function)
7232 (make-local-variable 'gnus-prev-winconf)
7233 (set (make-local-variable 'font-lock-defaults)
7234 '(message-font-lock-keywords t))
7235 (set (make-local-variable 'mail-header-separator) "")
7236 (set (make-local-variable 'gnus-article-edit-mode) t)
7237 (easy-menu-add message-mode-field-menu message-mode-map)
7238 (mml-mode)
7239 (setq buffer-read-only nil)
7240 (buffer-enable-undo)
7241 (widen))
7243 (defun gnus-article-edit (&optional force)
7244 "Edit the current article.
7245 This will have permanent effect only in mail groups.
7246 If FORCE is non-nil, allow editing of articles even in read-only
7247 groups."
7248 (interactive "P")
7249 (when (and (not force)
7250 (gnus-group-read-only-p))
7251 (error "The current newsgroup does not support article editing"))
7252 (gnus-with-article-buffer
7253 (article-date-original))
7254 (gnus-article-edit-article
7255 'ignore
7256 `(lambda (no-highlight)
7257 'ignore
7258 (gnus-summary-edit-article-done
7259 ,(or (mail-header-references gnus-current-headers) "")
7260 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
7262 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
7263 "Start editing the contents of the current article buffer."
7264 (let ((winconf (current-window-configuration)))
7265 (set-buffer gnus-article-buffer)
7266 (let ((message-auto-save-directory
7267 ;; Don't associate the article buffer with a draft file.
7268 nil))
7269 (gnus-article-edit-mode))
7270 (funcall start-func)
7271 (set-buffer-modified-p nil)
7272 (gnus-configure-windows 'edit-article)
7273 (setq gnus-article-edit-done-function exit-func)
7274 (setq gnus-prev-winconf winconf)
7275 (unless quiet
7276 (gnus-message 6 "C-c C-c to end edits"))))
7278 (defun gnus-article-edit-done (&optional arg)
7279 "Update the article edits and exit."
7280 (interactive "P")
7281 (let ((func gnus-article-edit-done-function)
7282 (buf (current-buffer))
7283 (start (window-start))
7284 (winconf gnus-prev-winconf))
7285 (widen) ;; Widen it in case that users narrowed the buffer.
7286 (funcall func arg)
7287 (set-buffer buf)
7288 ;; The cache and backlog have to be flushed somewhat.
7289 (when gnus-keep-backlog
7290 (gnus-backlog-remove-article
7291 (car gnus-article-current) (cdr gnus-article-current)))
7292 ;; Flush original article as well.
7293 (gnus-flush-original-article-buffer)
7294 (when gnus-use-cache
7295 (gnus-cache-update-article
7296 (car gnus-article-current) (cdr gnus-article-current)))
7297 ;; We remove all text props from the article buffer.
7298 (kill-all-local-variables)
7299 (set-text-properties (point-min) (point-max) nil)
7300 (gnus-article-mode)
7301 (set-window-configuration winconf)
7302 (set-buffer buf)
7303 (set-window-start (get-buffer-window buf) start)
7304 (set-window-point (get-buffer-window buf) (point)))
7305 (gnus-summary-show-article))
7307 (defun gnus-flush-original-article-buffer ()
7308 (when (get-buffer gnus-original-article-buffer)
7309 (with-current-buffer gnus-original-article-buffer
7310 (setq gnus-original-article nil))))
7312 (defun gnus-article-edit-exit ()
7313 "Exit the article editing without updating."
7314 (interactive)
7315 (when (or (not (buffer-modified-p))
7316 (yes-or-no-p "Article modified; kill anyway? "))
7317 (let ((curbuf (current-buffer))
7318 (p (point))
7319 (window-start (window-start)))
7320 (erase-buffer)
7321 (if (gnus-buffer-live-p gnus-original-article-buffer)
7322 (insert-buffer-substring gnus-original-article-buffer))
7323 (let ((winconf gnus-prev-winconf))
7324 (kill-all-local-variables)
7325 (gnus-article-mode)
7326 (set-window-configuration winconf)
7327 ;; Tippy-toe some to make sure that point remains where it was.
7328 (save-current-buffer
7329 (set-buffer curbuf)
7330 (set-window-start (get-buffer-window (current-buffer)) window-start)
7331 (goto-char p))))
7332 (gnus-summary-show-article)))
7334 (defun gnus-article-edit-full-stops ()
7335 "Interactively repair spacing at end of sentences."
7336 (interactive)
7337 (save-excursion
7338 (goto-char (point-min))
7339 (search-forward-regexp "^$" nil t)
7340 (let ((case-fold-search nil))
7343 ;;;
7344 ;;; Article highlights
7345 ;;;
7347 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
7349 ;;; Internal Variables:
7351 (defcustom gnus-button-url-regexp
7352 (concat
7357 (punct "!?:;.,"))
7358 (concat
7360 ;; Match paired parentheses, e.g. in Wikipedia URLs:
7361 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
7362 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)"
7365 "[" chars punct "]+" "[" chars "]"
7368 "Regular expression that matches URLs."
7369 :version "24.4"
7370 :group 'gnus-article-buttons
7371 :type 'regexp)
7374 "Regular expression that matches a valid FQDN."
7375 :version "26.1"
7376 :group 'gnus-article-buttons
7377 :type 'regexp)
7379 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
7380 (defcustom gnus-button-valid-localpart-regexp
7382 "Regular expression that matches a localpart of mail addresses or MIDs."
7383 :version "22.1"
7384 :group 'gnus-article-buttons
7385 :type 'regexp)
7387 (defcustom gnus-button-man-handler 'manual-entry
7388 "Function to use for displaying man pages.
7389 The function must take at least one argument with a string naming the
7390 man page."
7391 :version "22.1"
7392 :type '(choice (function-item :tag "Man" manual-entry)
7393 (function-item :tag "Woman" woman)
7394 (function :tag "Other"))
7395 :group 'gnus-article-buttons)
7397 (defcustom gnus-button-mid-or-mail-regexp
7399 gnus-button-valid-fqdn-regexp
7401 "Regular expression that matches a message ID or a mail address."
7402 :version "22.1"
7403 :group 'gnus-article-buttons
7404 :type 'regexp)
7406 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
7408 Strings like this can be either a message ID or a mail address. If it is one
7409 of the symbols `mid' or `mail', Gnus will always assume that the string is a
7410 message ID or a mail address, respectively. If this variable is set to the
7411 symbol `ask', always query the user what do do. If it is a function, this
7412 function will be called with the string as its only argument. The function
7413 must return `mid', `mail', `invalid' or `ask'."
7414 :version "22.1"
7415 :group 'gnus-article-buttons
7416 :type '(choice (function-item :tag "Heuristic function"
7417 gnus-button-mid-or-mail-heuristic)
7418 (const ask)
7419 (const mid)
7420 (const mail)))
7422 (defcustom gnus-button-mid-or-mail-heuristic-alist
7424 (-10.0 . "#")
7427 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7428 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7429 (-1.0 . "^[^a-z]+@")
7430 ;;
7432 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7433 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7435 ;;
7436 (-2.0 . "^[0-9]")
7437 (-1.0 . "^[0-9][0-9]")
7438 ;;
7439 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7440 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7441 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7442 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7443 ;;
7444 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7445 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7446 ;; "[0-9]{8,}.*\@"
7447 (-3.0
7448 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7449 ;; "[0-9]{12,}.*\@"
7450 ;; compensation for TDMA dated mail addresses:
7451 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7452 ;;
7454 (-20.0 . "^slrn")
7455 (-20.0 . "^Pine")
7457 (-20.0 . "_-_") ;; Subject change in thread
7458 ;;
7462 ;;
7463 ;; (5.0 . "") ;; $local_part_len <= 7
7464 (10.0 . "^[^0-9]+@")
7465 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7466 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7467 (3.0 . "@stud")
7468 ;;
7469 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7470 ;;
7471 (0.5 . "^[A-Z][a-z]")
7472 (0.5 . "^[A-Z][a-z][a-z]")
7473 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7474 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7475 "An alist of (RATE . REGEXP) pairs for `gnus-button-mid-or-mail-heuristic'.
7477 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7478 address. The REGEXP is processed with `case-fold-search' set to nil."
7479 :version "22.1"
7480 :group 'gnus-article-buttons
7481 :type '(repeat (cons (number :tag "Rate")
7482 (regexp :tag "Regexp"))))
7484 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7485 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7486 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7487 address, `ask' if unsure and `invalid' if the string is invalid."
7488 (let ((case-fold-search nil)
7489 (list gnus-button-mid-or-mail-heuristic-alist)
7490 (result 0) rate regexp lpartlen elem)
7491 (setq lpartlen
7493 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7494 ;; Certain special cases...
7495 (when (string-match
7496 (concat
7500 mid-or-mail)
7501 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7502 (setq result 'mail))
7504 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7505 (setq result 'invalid))
7506 ;; Nothing more to do, if result is not a number here...
7507 (when (numberp result)
7508 (while list
7509 (setq elem (car list)
7510 rate (car elem)
7511 regexp (cdr elem)
7512 list (cdr list))
7513 (when (string-match regexp mid-or-mail)
7514 (setq result (+ result rate))
7515 (gnus-message
7516 9 "`%s' matched `%s', rate `%s', result `%s'."
7517 mid-or-mail regexp rate result)))
7518 (when (<= lpartlen 7)
7519 (setq result (+ result 5.0))
7520 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7521 mid-or-mail result))
7522 (when (>= lpartlen 12)
7523 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7524 (cond
7525 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7526 ;; Long local part should contain realname if e-mail address,
7527 ;; too many digits: message-id.
7528 ;; $score -= 5.0 + 0.1 * $local_part_len;
7529 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7530 (setq result (+ result rate))
7531 (gnus-message
7532 9 "Many digits in `%s', rate `%s', result `%s'."
7533 mid-or-mail rate result))
7534 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*@"
7535 mid-or-mail)
7536 ;; Too few vowels [^aeiouy]{4,}.*@
7537 (setq result (+ result -5.0))
7538 (gnus-message
7539 9 "Few vowels in `%s', rate `%s', result `%s'."
7540 mid-or-mail -5.0 result))
7541 (t
7542 (setq result (+ result 5.0))
7543 (gnus-message
7544 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7545 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7546 ;; Maybe we should make this a customizable alist: (condition . 'result)
7547 (cond
7548 ((symbolp result) result)
7549 ;; Now convert number into proper results:
7550 ((< result -10.0) 'mid)
7551 ((> result 10.0) 'mail)
7552 (t 'ask))))
7554 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7555 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7556 (url-mid (concat "news" ":" mid-or-mail))
7557 (url-mailto (concat "mailto" ":" mid-or-mail)))
7558 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7559 (when (fboundp pref)
7560 (setq guessed
7561 ;; get rid of surrounding angles...
7562 (funcall pref
7564 (if (or (eq 'mid guessed) (eq 'mail guessed))
7565 (setq pref guessed)
7566 (setq pref 'ask)))
7567 (if (eq pref 'ask)
7568 (save-window-excursion
7569 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7570 (setq pref 'mail)
7571 (setq pref 'mid))))
7572 (cond ((eq pref 'mid)
7573 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7574 (gnus-button-handle-news url-mid))
7575 ((eq pref 'mail)
7576 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7577 (gnus-url-mailto url-mailto))
7578 (t (gnus-message 3 "Invalid string.")))))
7580 (defun gnus-button-handle-custom (fun arg)
7581 "Call function FUN on argument ARG.
7582 Both FUN and ARG are supposed to be strings. ARG will be passed
7583 as a symbol to FUN."
7584 (funcall (intern fun)
7585 (if (string-match "^customize-apropos" fun)
7586 arg
7587 (intern arg))))
7591 (defun gnus-button-handle-describe-function (url)
7592 "Call `describe-function' when pushing the corresponding URL button."
7593 (describe-function
7594 (intern
7595 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url))))
7597 (defun gnus-button-handle-describe-variable (url)
7598 "Call `describe-variable' when pushing the corresponding URL button."
7599 (describe-variable
7600 (intern
7601 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url))))
7603 (defun gnus-button-handle-symbol (url)
7604 "Display help on variable or function.
7605 Calls `describe-variable' or `describe-function'."
7606 (let ((sym (intern url)))
7607 (cond
7608 ((fboundp sym) (describe-function sym))
7609 ((boundp sym) (describe-variable sym))
7610 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7612 (defun gnus-button-handle-describe-key (url)
7613 "Call `describe-key' when pushing the corresponding URL button."
7614 (let* ((key-string
7615 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url))
7616 (keys (ignore-errors (eval `(kbd ,key-string)))))
7617 (if keys
7618 (describe-key keys)
7619 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7621 (defun gnus-button-handle-apropos (url)
7622 "Call `apropos' when pushing the corresponding URL button."
7623 (apropos (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7625 (defun gnus-button-handle-apropos-command (url)
7626 "Call `apropos' when pushing the corresponding URL button."
7627 (apropos-command
7628 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7630 (defun gnus-button-handle-apropos-variable (url)
7631 "Call `apropos' when pushing the corresponding URL button."
7632 (apropos-variable
7633 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7635 (defun gnus-button-handle-apropos-documentation (url)
7636 "Call `apropos' when pushing the corresponding URL button."
7637 (apropos-documentation
7638 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7640 (defun gnus-button-handle-library (url)
7641 "Call `locate-library' when pushing the corresponding URL button."
7642 (gnus-message 9 "url=`%s'" url)
7643 (let* ((lib (locate-library url))
7645 (if (not lib)
7646 (gnus-message 1 "Cannot locate library `%s'." url)
7647 (find-file-read-only file))))
7649 (defcustom gnus-button-man-level 5
7650 "Integer that says how many man-related buttons Gnus will show.
7651 The higher the number, the more buttons will appear and the more false
7652 positives are possible. Note that you can set this variable local to
7653 specific groups. Setting it higher in Unix groups is probably a good idea.
7654 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7655 how to set variables in specific groups."
7656 :version "22.1"
7657 :group 'gnus-article-buttons
7658 :link '(custom-manual "(gnus)Group Parameters")
7659 :type 'integer)
7661 (defcustom gnus-button-emacs-level 5
7662 "Integer that says how many emacs-related buttons Gnus will show.
7663 The higher the number, the more buttons will appear and the more false
7664 positives are possible. Note that you can set this variable local to
7665 specific groups. Setting it higher in Emacs or Gnus related groups is
7666 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7667 `gnus-parameters' on how to set variables in specific groups."
7668 :version "22.1"
7669 :group 'gnus-article-buttons
7670 :link '(custom-manual "(gnus)Group Parameters")
7671 :type 'integer)
7673 (defcustom gnus-button-message-level 5
7674 "Integer that says how many buttons for news or mail messages will appear.
7675 The higher the number, the more buttons will appear and the more false
7676 positives are possible."
7677 ;; mail addresses, MIDs, URLs for news, ...
7678 :version "22.1"
7679 :group 'gnus-article-buttons
7680 :type 'integer)
7682 (defcustom gnus-button-browse-level 5
7683 "Integer that says how many buttons for browsing will appear.
7684 The higher the number, the more buttons will appear and the more false
7685 positives are possible."
7686 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7687 :version "22.1"
7688 :group 'gnus-article-buttons
7689 :type 'integer)
7691 (defcustom gnus-button-alist
7693 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7696 0 t gnus-button-handle-news 2)
7698 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7700 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7701 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7703 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7705 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7707 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7709 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7710 ;; RFC 2368 (The mailto URL scheme)
7712 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7714 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7715 ;; Info Konqueror style <info:/foo/bar baz>.
7716 ;; Must come before " Gnus home-grown style".
7718 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7719 ;; Info, Gnus home-grown style (deprecated) <info://foo/bar+baz>
7721 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7722 ;; Info GNOME style <info:foo#bar_baz>
7724 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7725 ;; Info KDE style <info:(foo)bar baz>
7727 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7729 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7730 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+i[ \t\n]+d?[ \t\n]?m[ \t\n]+[^ ]+ ?[^ ]+[ \t\n]+RET\\([ \t\n]+i[ \t\n]+[^ ]+ ?[^ ]+[ \t\n]+RET\\([ \t\n,]*\\)\\)?"
7731 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7732 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7733 ;; This is custom
7735 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7736 ;; Emacs help commands
7738 ;; regexp doesn't match arguments containing ` '.
7739 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7741 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7743 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7745 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7746 ;; The following entries may lead to many false positives so don't enable
7747 ;; them by default (use a high button level).
7749 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7750 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7752 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7754 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7756 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7758 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7760 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7762 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7764 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7766 ;; Unlike the other regexps we really have to require quoting
7767 ;; here to determine where it ends.
7768 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7769 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7771 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7772 ;; RFC 2396 (2.4.3., delims) ...
7774 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7775 ;; Raw URLs.
7776 (gnus-button-url-regexp
7777 0 (>= gnus-button-browse-level 0) browse-url 0)
7778 ;; man pages
7780 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7781 gnus-button-handle-man 1)
7782 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7784 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7785 gnus-button-handle-man 1)
7786 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7787 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7789 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7790 ;; Recognizing patches to .el files. This is somewhat obscure,
7791 ;; but considering the percentage of Gnus users who hack Emacs
7792 ;; Lisp files...
7794 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7796 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7797 ;; MID or mail: To avoid too many false positives we don't try to catch
7798 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7799 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7800 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7801 ;; so that non-ambiguous entries (see above) match first.
7802 (gnus-button-mid-or-mail-regexp
7803 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7804 "Alist of regexps matching buttons in article bodies.
7806 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7807 REGEXP: is the string (case insensitive) matching text around the button (can
7808 also be Lisp expression evaluating to a string),
7809 BUTTON: is the number of the regexp grouping actually matching the button,
7810 FORM: is a Lisp expression which must eval to true for the button to
7811 be added,
7812 CALLBACK: is the function to call when the user push this button, and each
7813 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7815 CALLBACK can also be a variable, in that case the value of that
7816 variable it the real callback function."
7817 :group 'gnus-article-buttons
7818 :type '(repeat (list (choice regexp variable sexp)
7819 (integer :tag "Button")
7820 (sexp :tag "Form")
7821 (function :tag "Callback")
7822 (repeat :tag "Par"
7823 :inline t
7824 (integer :tag "Regexp group")))))
7825 (put 'gnus-button-alist 'risky-local-variable t)
7827 (defcustom gnus-header-button-alist
7829 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7831 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7833 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7834 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7835 0 (>= gnus-button-browse-level 0) browse-url 0)
7836 ("^Subject:" gnus-button-url-regexp
7837 0 (>= gnus-button-browse-level 0) browse-url 0)
7838 ("^[^:]+:" gnus-button-url-regexp
7839 0 (>= gnus-button-browse-level 0) browse-url 0)
7840 ("^OpenPGP:.*url=" gnus-button-url-regexp
7841 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7843 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7845 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7846 "Alist of headers and regexps to match buttons in article heads.
7848 This alist is very similar to `gnus-button-alist', except that each
7849 alist has an additional HEADER element first in each entry:
7851 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7853 HEADER is a regexp to match a header. For a fuller explanation, see
7854 `gnus-button-alist'."
7855 :group 'gnus-article-buttons
7856 :group 'gnus-article-headers
7857 :type '(repeat (list (regexp :tag "Header")
7858 (choice regexp variable)
7859 (integer :tag "Button")
7860 (sexp :tag "Form")
7861 (function :tag "Callback")
7862 (repeat :tag "Par"
7863 :inline t
7864 (integer :tag "Regexp group")))))
7865 (put 'gnus-header-button-alist 'risky-local-variable t)
7867 ;;; Commands:
7869 (defun gnus-article-push-button (event)
7870 "Check text under the mouse pointer for a callback function.
7871 If the text under the mouse pointer has a `gnus-callback' property,
7872 call it with the value of the `gnus-data' text property."
7873 (interactive "e")
7874 (set-buffer (window-buffer (posn-window (event-start event))))
7875 (let* ((pos (posn-point (event-start event)))
7876 (data (get-text-property pos 'gnus-data))
7877 (fun (get-text-property pos 'gnus-callback)))
7878 (goto-char pos)
7879 (when fun
7880 (funcall fun data))))
7882 (defun gnus-article-press-button ()
7883 "Check text at point for a callback function.
7884 If the text at point has a `gnus-callback' property,
7885 call it with the value of the `gnus-data' text property."
7886 (interactive)
7887 (let ((data (get-text-property (point) 'gnus-data))
7888 (fun (get-text-property (point) 'gnus-callback)))
7889 (when fun
7890 (funcall fun data))))
7892 (defun gnus-article-highlight (&optional force)
7893 "Highlight current article.
7894 This function calls `gnus-article-highlight-headers',
7895 `gnus-article-highlight-citation',
7896 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7897 do the highlighting. See the documentation for those functions."
7898 (interactive (list 'force))
7899 (gnus-article-highlight-headers)
7900 (gnus-article-highlight-citation force)
7901 (gnus-article-highlight-signature)
7902 (gnus-article-add-buttons)
7903 (gnus-article-add-buttons-to-head))
7905 (defun gnus-article-highlight-some (&optional _force)
7906 "Highlight current article.
7907 This function calls `gnus-article-highlight-headers',
7908 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7909 do the highlighting. See the documentation for those functions."
7910 (interactive (list 'force))
7911 (gnus-article-highlight-headers)
7912 (gnus-article-highlight-signature)
7913 (gnus-article-add-buttons))
7915 (defun gnus-article-highlight-headers ()
7916 "Highlight article headers as specified by `gnus-header-face-alist'."
7917 (interactive)
7918 (gnus-with-article-headers
7919 (let (regexp header-face field-face from hpoints fpoints)
7920 (dolist (entry gnus-header-face-alist)
7921 (goto-char (point-min))
7923 (if (string-equal "" (nth 0 entry))
7925 (nth 0 entry))
7927 header-face (nth 1 entry)
7928 field-face (nth 2 entry))
7929 (while (and (re-search-forward regexp nil t)
7930 (not (eobp)))
7931 (beginning-of-line)
7932 (setq from (point))
7933 (unless (search-forward ":" nil t)
7934 (forward-char 1))
7935 (when (and header-face
7936 (not (memq (point) hpoints)))
7937 (push (point) hpoints)
7938 (put-text-property from (point) 'face header-face))
7939 (when (and field-face
7940 (not (memq (setq from (point)) fpoints)))
7941 (push from fpoints)
7943 (forward-char -2)
7944 (goto-char (point-max)))
7945 (put-text-property from (point) 'face field-face)))))))
7947 (defun gnus-article-highlight-signature ()
7948 "Highlight the signature in an article.
7949 It does this by highlighting everything after
7950 `gnus-signature-separator' using the face `gnus-signature'."
7951 (interactive)
7952 (gnus-with-article-buffer
7953 (let ((inhibit-point-motion-hooks t))
7954 (save-restriction
7955 (when (and gnus-signature-face
7956 (gnus-article-narrow-to-signature))
7957 (overlay-put (make-overlay (point-min) (point-max) nil t)
7958 'face gnus-signature-face)
7959 (widen)
7960 (gnus-article-search-signature)
7961 (let ((start (match-beginning 0))
7962 (end (set-marker (make-marker) (1+ (match-end 0)))))
7963 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
7964 end)))))))
7966 (defun gnus-button-in-region-p (b e prop)
7967 "Say whether PROP exists in the region."
7968 (text-property-not-all b e prop nil))
7970 (defun gnus-article-add-buttons ()
7971 "Find external references in the article and make buttons of them.
7973 specified by `gnus-button-alist'."
7974 (interactive)
7975 (gnus-with-article-buffer
7976 (let ((inhibit-point-motion-hooks t)
7977 (case-fold-search t)
7978 (alist gnus-button-alist)
7979 beg entry regexp)
7980 ;; We skip the headers.
7981 (article-goto-body)
7982 (setq beg (point))
7983 (while (setq entry (pop alist))
7984 (setq regexp (eval (car entry)))
7985 (goto-char beg)
7986 (while (re-search-forward regexp nil t)
7987 (let ((start (match-beginning (nth 1 entry)))
7988 (end (match-end (nth 1 entry)))
7989 (from (match-beginning 0)))
7990 (when (and (eval (nth 2 entry))
7991 (not (gnus-button-in-region-p
7992 start end 'gnus-callback)))
7993 ;; That optional form returned non-nil, so we add the
7994 ;; button.
7995 (setq from (set-marker (make-marker) from))
7996 (unless (and (eq (car entry) 'gnus-button-url-regexp)
7997 (gnus-article-extend-url-button from start end))
7998 (gnus-article-add-button start end
7999 'gnus-button-push (list from entry))
8000 (put-text-property
8001 start end
8002 'gnus-string (buffer-substring-no-properties
8003 start end))))))))))
8005 (defun gnus-article-extend-url-button (beg start end)
8006 "Extend url button if url is folded into two or more lines.
8007 Return non-nil if button is extended. BEG is a marker that points to
8008 the beginning position of a text containing url. START and END are
8009 the endpoints of a url button before it is extended. The concatenated
8010 url is put as the `gnus-button-url' overlay property on the button."
8011 (let ((opoint (point))
8012 (points (list start end))
8013 url delim regexp)
8014 (prog1
8015 (when (and (progn
8016 (goto-char end)
8018 (progn
8019 (goto-char start)
8020 (string-match
8022 (buffer-substring (point-at-bol) start)))
8023 (progn
8024 (setq url (list (buffer-substring start end))
8026 (beginning-of-line)
8027 (setq regexp (concat
8028 (when (and (looking-at
8029 message-cite-prefix-regexp)
8030 (< (match-end 0) start))
8031 (regexp-quote (match-string 0)))
8032 "\
8035 (while (progn
8036 (forward-line 1)
8037 (and (looking-at regexp)
8038 (prog1
8039 (match-beginning 1)
8040 (push (or (match-string 2)
8041 (match-string 1))
8042 url)
8043 (push (setq end (or (match-end 2)
8044 (match-end 1)))
8045 points)
8046 (push (or (match-beginning 2)
8047 (match-beginning 1))
8048 points)))))
8049 (match-beginning 2)))
8050 (let (gnus-article-mouse-face widget-mouse-face)
8051 (while points
8052 (gnus-article-add-button (pop points) (pop points)
8053 'gnus-button-push
8054 (list beg (assq 'gnus-button-url-regexp
8055 gnus-button-alist)))))
8056 (let ((overlay (make-overlay start end)))
8057 (overlay-put overlay 'evaporate t)
8058 (overlay-put overlay 'gnus-button-url
8059 (list (mapconcat 'identity (nreverse url) "")))
8060 (when gnus-article-mouse-face
8061 (overlay-put overlay 'mouse-face gnus-article-mouse-face)))
8062 t)
8063 (goto-char opoint))))
8065 ;; Add buttons to the head of an article.
8066 (defun gnus-article-add-buttons-to-head ()
8067 "Add buttons to the head of the article."
8068 (interactive)
8069 (gnus-with-article-headers
8070 (let (beg end)
8071 (dolist (entry gnus-header-button-alist)
8072 ;; Each alist entry.
8073 (goto-char (point-min))
8074 (while (re-search-forward (car entry) nil t)
8075 ;; Each header matching the entry.
8076 (setq beg (match-beginning 0))
8078 (match-beginning 0))
8079 (point-max)))
8080 (goto-char beg)
8081 (while (re-search-forward (eval (nth 1 entry)) end t)
8082 ;; Each match within a header.
8083 (let* ((entry (cdr entry))
8084 (start (match-beginning (nth 1 entry)))
8085 (end (match-end (nth 1 entry)))
8086 (form (nth 2 entry)))
8087 (goto-char (match-end 0))
8088 (when (eval form)
8089 (gnus-article-add-button
8090 start end (nth 3 entry)
8091 (buffer-substring (match-beginning (nth 4 entry))
8092 (match-end (nth 4 entry)))))))
8093 (goto-char end))))))
8095 ;;; External functions:
8097 (defun gnus-article-add-button (from to fun &optional data text)
8098 "Create a button between FROM and TO with callback FUN and data DATA."
8099 (when gnus-article-button-face
8100 (overlay-put (make-overlay from to nil t)
8101 'face gnus-article-button-face))
8102 (add-text-properties
8103 from to
8104 (nconc (and gnus-article-mouse-face
8105 (list 'mouse-face gnus-article-mouse-face))
8106 (list 'gnus-callback fun)
8107 (and data (list 'gnus-data data))))
8108 (widget-convert-button 'link from to :action 'gnus-widget-press-button
8109 :help-echo (or text "Follow the link")
8110 :keymap gnus-url-button-map))
8112 (defun gnus-article-copy-string ()
8113 "Copy the string in the button to the kill ring."
8114 (interactive)
8115 (gnus-article-check-buffer)
8116 (let ((data (get-text-property (point) 'gnus-string)))
8117 (when data
8118 (with-temp-buffer
8119 (insert data)
8120 (copy-region-as-kill (point-min) (point-max))
8121 (message "Copied %s" data)))))
8123 ;;; Internal functions:
8125 (defun gnus-article-set-globals ()
8126 (with-current-buffer gnus-summary-buffer
8127 (gnus-set-global-variables)))
8129 (defun gnus-signature-toggle (end)
8130 (gnus-with-article-buffer
8131 (let ((inhibit-point-motion-hooks t))
8132 (if (text-property-any end (point-max) 'article-type 'signature)
8133 (progn
8134 (gnus-delete-wash-type 'signature)
8135 (gnus-remove-text-properties-when
8136 'article-type 'signature end (point-max)
8137 (cons 'article-type (cons 'signature
8138 gnus-hidden-properties))))
8139 (gnus-add-wash-type 'signature)
8140 (gnus-add-text-properties-when
8141 'article-type nil end (point-max)
8142 (cons 'article-type (cons 'signature
8143 gnus-hidden-properties)))))
8144 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
8145 (gnus-set-mode-line 'article))))
8147 (defun gnus-button-push (marker-and-entry)
8148 ;; Push button starting at MARKER.
8149 (save-excursion
8150 (let* ((marker (car marker-and-entry))
8151 (entry (cadr marker-and-entry))
8152 (regexp (car entry))
8153 (inhibit-point-motion-hooks t))
8154 (goto-char marker)
8155 ;; This is obviously true, or something bad is happening :)
8156 ;; But we need it to have the match-data
8157 (when (looking-at (or (if (symbolp regexp)
8158 (symbol-value regexp)
8159 regexp)))
8160 (let ((fun (nth 3 entry))
8161 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
8162 (get-char-property marker 'gnus-button-url))
8163 (mapcar (lambda (group)
8164 (let ((string (match-string group)))
8165 (set-text-properties
8166 0 (length string) nil string)
8167 string))
8168 (nthcdr 4 entry)))))
8170 (cond
8171 ((fboundp fun)
8172 (apply fun args))
8173 ((and (boundp fun)
8174 (fboundp (symbol-value fun)))
8175 (apply (symbol-value fun) args))
8176 (t
8177 (gnus-message 1 "You must define `%S' to use this button"
8178 (cons fun args)))))))))
8180 (defun gnus-parse-news-url (url)
8181 (let (scheme server port group message-id articles)
8182 (with-temp-buffer
8183 (insert url)
8184 (goto-char (point-min))
8186 (setq scheme (match-string 1))
8187 (goto-char (match-end 0)))
8189 (setq server (match-string 1))
8190 (setq port (if (stringp (match-string 3))
8191 (string-to-number (match-string 3))
8192 (match-string 3)))
8193 (goto-char (match-end 0)))
8195 (cond
8197 (setq message-id (match-string 1)))
8199 (setq group (match-string 1)
8200 articles (split-string (match-string 2) "-")))
8202 (setq group (match-string 1)))
8203 (t
8204 (error "Unknown news URL syntax"))))
8205 (list scheme server port group message-id articles)))
8207 (defvar nntp-port-number)
8209 (defun gnus-button-handle-news (url)
8210 "Fetch a news URL."
8211 (destructuring-bind (_scheme server port group message-id _articles)
8212 (gnus-parse-news-url url)
8213 (cond
8214 (message-id
8215 (with-current-buffer gnus-summary-buffer
8216 (if server
8217 (let ((gnus-refer-article-method
8218 (nconc (list (list 'nntp server))
8219 gnus-refer-article-method))
8220 (nntp-port-number (or port "nntp")))
8221 (gnus-message 7 "Fetching %s with %s"
8222 message-id gnus-refer-article-method)
8223 (gnus-summary-refer-article message-id))
8224 (gnus-summary-refer-article message-id))))
8225 (group
8226 (gnus-button-fetch-group url)))))
8228 (defun gnus-button-patch (library line)
8229 "Visit an Emacs Lisp library LIBRARY on line LINE."
8230 (interactive)
8231 (let ((file (locate-library (file-name-nondirectory library))))
8232 (unless file
8233 (error "Couldn't find library %s" library))
8234 (find-file file)
8235 (goto-char (point-min))
8236 (forward-line (1- (string-to-number line)))))
8238 (defun gnus-button-handle-man (url)
8239 "Fetch a man page."
8240 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8241 (when (eq gnus-button-man-handler 'woman)
8243 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8244 (funcall gnus-button-man-handler url))
8246 (defun gnus-button-handle-info-url (url)
8247 "Fetch an info URL."
8248 (setq url (subst-char-in-string ?+ ?\ url))
8249 (cond
8251 (gnus-info-find-node
8252 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
8253 "Gnus")
8254 ")" (gnus-url-unhex-string (match-string 2 url)))))
8256 (setq url
8257 (replace-regexp-in-string
8259 (gnus-info-find-node url))
8260 (t (error "Can't parse %s" url))))
8262 (defun gnus-button-handle-info-url-gnome (url)
8263 "Fetch GNOME style info URL."
8264 (setq url (subst-char-in-string ?_ ?\ url))
8266 (gnus-info-find-node
8267 (concat "("
8268 (gnus-url-unhex-string
8269 (match-string 1 url))
8270 ")"
8271 (or (gnus-url-unhex-string
8272 (match-string 2 url))
8273 "Top")))
8274 (error "Can't parse %s" url)))
8276 (defun gnus-button-handle-info-url-kde (url)
8277 "Fetch KDE style info URL."
8278 (gnus-info-find-node (gnus-url-unhex-string url)))
8280 ;; (info) will autoload info.el
8281 (declare-function Info-menu "info" (menu-item &optional fork))
8282 (declare-function Info-index-next "info" (num))
8284 (defun gnus-button-handle-info-keystrokes (url)
8285 "Call `info' when pushing the corresponding URL button."
8286 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
8287 (let (node indx comma)
8288 (if (string-match
8293 url)
8294 (setq node (match-string 2 url)
8295 indx (match-string 3 url))
8296 (error "Can't parse %s" url))
8297 (info)
8298 (Info-directory)
8299 (Info-menu node)
8300 (when (> (length indx) 0)
8303 indx)
8304 (setq comma (match-string 2 indx))
8305 (setq indx (match-string 1 indx))
8306 (Info-index indx)
8307 (when comma
8308 (dotimes (i (with-temp-buffer
8309 (insert comma)
8310 ;; Note: the XEmacs version of `how-many' takes
8311 ;; no optional argument.
8312 (goto-char (point-min))
8313 (how-many ",")))
8314 (Info-index-next 1)))
8315 nil)))
8317 (autoload 'pgg-snarf-keys-region "pgg")
8318 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
8319 (declare-function pgg-display-output-buffer "pgg" (start end status))
8321 (defun gnus-button-openpgp (url)
8322 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
8323 (with-temp-buffer
8324 (mm-url-insert-file-contents-external url)
8325 (pgg-snarf-keys-region (point-min) (point-max))
8326 (pgg-display-output-buffer nil nil nil)))
8328 (defun gnus-button-message-id (message-id)
8329 "Fetch MESSAGE-ID."
8330 (with-current-buffer gnus-summary-buffer
8331 (gnus-summary-refer-article message-id)))
8333 (defun gnus-button-fetch-group (address &rest _ignore)
8334 "Fetch GROUP specified by ADDRESS."
8336 address)
8337 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
8338 ;; for nntp:// and news://
8339 (setq address (match-string 3 address)))
8340 (if (not (string-match "[:/]" address))
8341 ;; This is just a simple group url.
8342 (gnus-group-read-ephemeral-group address gnus-select-method)
8343 (if (not
8344 (string-match
8346 address))
8347 (error "Can't parse %s" address)
8348 (gnus-group-read-ephemeral-group
8349 (match-string 4 address)
8350 `(nntp ,(match-string 1 address)
8351 (nntp-address ,(match-string 1 address))
8352 (nntp-port-number ,(if (match-end 3)
8353 (match-string 3 address)
8354 "nntp")))
8355 nil nil nil
8356 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
8358 (defun gnus-url-parse-query-string (query &optional downcase)
8359 (let (retval pairs cur key val)
8360 (setq pairs (split-string query "&"))
8361 (while pairs
8362 (setq cur (car pairs)
8363 pairs (cdr pairs))
8364 (if (not (string-match "=" cur))
8365 nil ; Grace
8366 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
8367 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
8368 (if downcase
8369 (setq key (downcase key)))
8370 (setq cur (assoc key retval))
8371 (if cur
8372 (setcdr cur (cons val (cdr cur)))
8373 (setq retval (cons (list key val) retval)))))
8374 retval))
8376 (defun gnus-url-mailto (url)
8377 ;; Send mail to someone
8380 (setq url (substring url (match-beginning 1) nil)))
8381 (let* ((args (gnus-url-parse-query-string
8383 (substring url 1)
8385 (concat "to=" (match-string 1 url) "&"
8386 (match-string 2 url))
8387 (concat "to=" url)))))
8388 (subject (cdr-safe (assoc "subject" args)))
8389 func)
8390 (gnus-msg-mail)
8391 (while args
8392 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8393 (if (fboundp func)
8394 (funcall func)
8395 (message-position-on-field (caar args)))
8396 (insert (replace-regexp-in-string
8398 (mapconcat 'identity (reverse (cdar args)) ", ") nil t))
8399 (setq args (cdr args)))
8400 (if subject
8401 (message-goto-body)
8402 (message-goto-subject))))
8404 (defun gnus-button-embedded-url (address)
8405 "Activate ADDRESS with `browse-url'."
8406 (browse-url (gnus-strip-whitespace address)))
8408 ;;; Next/prev buttons in the article buffer.
8413 (defvar gnus-prev-page-map
8414 (let ((map (make-sparse-keymap)))
8415 (define-key map [mouse-2] 'gnus-button-prev-page)
8417 map))
8419 (defvar gnus-next-page-map
8420 (let ((map (make-sparse-keymap)))
8421 (define-key map [mouse-2] 'gnus-button-next-page)
8423 map))
8425 (defun gnus-insert-prev-page-button ()
8426 (let ((b (point)) e
8427 (inhibit-read-only t))
8428 (gnus-eval-format
8429 gnus-prev-page-line-format nil
8430 `(keymap ,gnus-prev-page-map
8431 gnus-prev t
8432 gnus-callback gnus-article-button-prev-page
8433 article-type annotation))
8434 (setq e (if (bolp)
8435 ;; Exclude a newline.
8436 (1- (point))
8437 (point)))
8438 (when gnus-article-button-face
8439 (overlay-put (make-overlay b e nil t)
8440 'face gnus-article-button-face))
8441 (widget-convert-button
8442 'link b e
8443 :action 'gnus-button-prev-page
8444 :button-keymap gnus-prev-page-map)))
8446 (defun gnus-button-next-page (&optional _args _more-args)
8447 "Go to the next page."
8448 (interactive)
8449 (let ((win (selected-window)))
8450 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8451 (gnus-article-next-page)
8452 (select-window win)))
8454 (defun gnus-button-prev-page (&optional _args _more-args)
8455 "Go to the prev page."
8456 (interactive)
8457 (let ((win (selected-window)))
8458 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8459 (gnus-article-prev-page)
8460 (select-window win)))
8462 (defun gnus-insert-next-page-button ()
8463 (let ((b (point)) e
8464 (inhibit-read-only t))
8465 (gnus-eval-format gnus-next-page-line-format nil
8466 `(keymap ,gnus-next-page-map
8467 gnus-next t
8468 gnus-callback gnus-article-button-next-page
8469 article-type annotation))
8470 (setq e (if (bolp)
8471 ;; Exclude a newline.
8472 (1- (point))
8473 (point)))
8474 (when gnus-article-button-face
8475 (overlay-put (make-overlay b e nil t)
8476 'face gnus-article-button-face))
8477 (widget-convert-button
8478 'link b e
8479 :action 'gnus-button-next-page
8480 :button-keymap gnus-next-page-map)))
8482 (defun gnus-article-button-next-page (_arg)
8483 "Go to the next page."
8484 (interactive "P")
8485 (let ((win (selected-window)))
8486 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8487 (gnus-article-next-page)
8488 (select-window win)))
8490 (defun gnus-article-button-prev-page (_arg)
8491 "Go to the prev page."
8492 (interactive "P")
8493 (let ((win (selected-window)))
8494 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8495 (gnus-article-prev-page)
8496 (select-window win)))
8498 (defvar gnus-decode-header-methods
8499 '(mail-decode-encoded-word-region)
8500 "List of methods used to decode headers.
8502 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8503 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8504 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8505 whose names match REGEXP.
8507 For example:
8509 mail-decode-encoded-word-region
8511 ")
8513 (defvar gnus-decode-header-methods-cache nil)
8515 (defun gnus-multi-decode-header (start end)
8516 "Apply the functions from `gnus-encoded-word-methods' that match."
8517 (unless (and gnus-decode-header-methods-cache
8518 (eq gnus-newsgroup-name
8519 (car gnus-decode-header-methods-cache)))
8520 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8521 (dolist (x gnus-decode-header-methods)
8522 (if (symbolp x)
8523 (nconc gnus-decode-header-methods-cache (list x))
8524 (if (and gnus-newsgroup-name
8525 (string-match (car x) gnus-newsgroup-name))
8526 (nconc gnus-decode-header-methods-cache
8527 (list (cdr x)))))))
8528 (let ((xlist gnus-decode-header-methods-cache))
8529 (pop xlist)
8530 (save-restriction
8531 (narrow-to-region start end)
8532 (while xlist
8533 (funcall (pop xlist) (point-min) (point-max))))))
8535 ;;;
8536 ;;; Treatment top-level handling.
8537 ;;;
8539 (defvar gnus-inhibit-article-treatments nil)
8541 ;; Dynamic variables.
8542 (defvar part-number) ;FIXME: Lacks a "gnus-" prefix.
8543 (defvar total-parts) ;FIXME: Lacks a "gnus-" prefix.
8544 (defvar gnus-treat-type)
8545 (defvar gnus-treat-condition)
8546 (defvar gnus-treat-length)
8548 (defun gnus-treat-article (condition
8549 &optional part-num total type)
8550 (let ((gnus-treat-condition condition)
8551 (part-number part-num)
8552 (total-parts total)
8553 (gnus-treat-type type)
8554 (gnus-treat-length (- (point-max) (point-min)))
8555 (alist gnus-treatment-function-alist)
8556 (article-goto-body-goes-to-point-min-p t)
8557 (treated-type
8558 (or (not type)
8559 (catch 'found
8560 (let ((list gnus-article-treat-types))
8561 (while list
8562 (when (string-match (pop list) type)
8563 (throw 'found t)))))))
8564 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8565 val)
8566 (gnus-run-hooks 'gnus-part-display-hook)
8567 (dolist (elem alist)
8568 (setq val
8569 (save-excursion
8570 (when (gnus-buffer-live-p gnus-summary-buffer)
8571 (set-buffer gnus-summary-buffer))
8572 (symbol-value (car elem))))
8573 (when (and (or (consp val)
8574 treated-type)
8575 (or (not gnus-inhibit-article-treatments)
8576 (eq gnus-treat-condition 'head))
8577 (gnus-treat-predicate val)
8578 (or (not (get (car elem) 'highlight))
8579 highlightp))
8580 (save-restriction
8581 (funcall (cadr elem)))))))
8583 (defun gnus-treat-predicate (val)
8584 (cond
8585 ((null val)
8586 nil)
8587 (gnus-treat-condition
8588 (eq gnus-treat-condition val))
8589 ((and (listp val)
8590 (stringp (car val)))
8591 (apply 'gnus-or (mapcar `(lambda (s)
8592 (string-match s ,(or gnus-newsgroup-name "")))
8593 val)))
8594 ((listp val)
8595 (let ((pred (pop val)))
8596 (cond
8597 ((eq pred 'or)
8598 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8599 ((eq pred 'and)
8600 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8601 ((eq pred 'not)
8602 (not (gnus-treat-predicate (car val))))
8603 ((eq pred 'typep)
8604 (equal (car val) gnus-treat-type))
8605 ((functionp pred)
8606 (funcall pred))
8607 (t
8608 (error "%S is not a valid predicate" pred)))))
8609 ((eq val t)
8610 t)
8611 ((eq val 'head)
8612 nil)
8613 ((eq val 'first)
8614 (eq part-number 1))
8615 ((eq val 'last)
8616 (eq part-number total-parts))
8617 ((numberp val)
8618 (< gnus-treat-length val))
8619 (t
8620 (error "%S is not a valid value" val))))
8622 (defun gnus-article-encrypt-body (protocol &optional n)
8623 "Encrypt the article body."
8624 (interactive
8625 (list
8626 (or gnus-article-encrypt-protocol
8627 (gnus-completing-read "Encrypt protocol"
8628 (mapcar 'car gnus-article-encrypt-protocol-alist)
8629 t))
8630 current-prefix-arg))
8631 ;; User might hit `K E' instead of `K e', so prompt once.
8632 (when (and gnus-article-encrypt-protocol
8633 gnus-novice-user)
8634 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8635 (error "Encrypt aborted")))
8636 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8637 (unless func
8638 (error "Can't find the encrypt protocol %s" protocol))
8639 (if (member gnus-newsgroup-name '("nndraft:delayed"
8640 "nndraft:drafts"
8641 "nndraft:queue"))
8642 (error "Can't encrypt the article in group %s"
8643 gnus-newsgroup-name))
8644 (gnus-summary-iterate n
8645 (with-current-buffer gnus-summary-buffer
8646 (let ((mail-parse-charset gnus-newsgroup-charset)
8647 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8648 (summary-buffer gnus-summary-buffer)
8649 references point)
8650 (gnus-set-global-variables)
8651 (when (gnus-group-read-only-p)
8652 (error "The current newsgroup does not support article encrypt"))
8653 (gnus-summary-show-article t)
8654 (setq references
8655 (or (mail-header-references gnus-current-headers) ""))
8656 (set-buffer gnus-article-buffer)
8657 (let* ((inhibit-read-only t)
8658 (headers
8659 (mapcar (lambda (field)
8660 (and (save-restriction
8661 (message-narrow-to-head)
8662 (goto-char (point-min))
8663 (search-forward field nil t))
8664 (prog2
8665 (message-narrow-to-field)
8666 (buffer-string)
8667 (delete-region (point-min) (point-max))
8668 (widen))))
8669 '("Content-Type:" "Content-Transfer-Encoding:"
8670 "Content-Disposition:"))))
8671 (message-narrow-to-head)
8672 (message-remove-header "MIME-Version")
8673 (goto-char (point-max))
8674 (setq point (point))
8675 (insert (apply 'concat headers))
8676 (widen)
8677 (narrow-to-region point (point-max))
8678 (let ((message-options message-options))
8679 (message-options-set 'message-sender user-mail-address)
8680 (message-options-set 'message-recipients user-mail-address)
8681 (message-options-set 'message-sign-encrypt 'not)
8682 (funcall func))
8683 (goto-char (point-min))
8685 (widen)
8686 (gnus-summary-edit-article-done
8687 references nil summary-buffer t))
8688 (when gnus-keep-backlog
8689 (gnus-backlog-remove-article
8690 (car gnus-article-current) (cdr gnus-article-current)))
8691 (gnus-flush-original-article-buffer)
8692 (when gnus-use-cache
8693 (gnus-cache-update-article
8694 (car gnus-article-current) (cdr gnus-article-current))))))))
8697 "The following specs can be used:
8698 %t The security MIME type
8699 %i Additional info
8700 %d Details
8701 %D Details if button is pressed")
8704 "The following specs can be used:
8705 %t The security MIME type
8706 %i Additional info
8707 %d Details
8708 %D Details if button is pressed")
8710 (defvar gnus-mime-security-button-line-format-alist
8711 '((?t gnus-tmp-type ?s)
8712 (?i gnus-tmp-info ?s)
8713 (?d gnus-tmp-details ?s)
8714 (?D gnus-tmp-pressed-details ?s)))
8716 (defvar gnus-mime-security-button-commands
8718 (undefined "v")
8719 (undefined "t")
8720 (undefined "C")
8721 (gnus-mime-security-save-part "o" "Save...")
8722 (undefined "\C-o")
8723 (undefined "r")
8724 (undefined "d")
8725 (undefined "c")
8726 (undefined "i")
8727 (undefined "E")
8728 (undefined "e")
8729 (undefined "p")
8730 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8731 (undefined ".")))
8733 (defvar gnus-mime-security-button-map
8734 (let ((map (make-sparse-keymap)))
8735 (define-key map [mouse-2] 'gnus-article-push-button)
8736 (define-key map [down-mouse-3] 'gnus-mime-security-button-menu)
8737 (dolist (c gnus-mime-security-button-commands)
8738 (define-key map (cadr c) (car c)))
8739 map))
8741 (easy-menu-define
8742 gnus-mime-security-button-menu gnus-mime-security-button-map
8743 "Security button menu."
8744 `("Security Part"
8745 ,@(delq nil
8746 (mapcar (lambda (c)
8747 (unless (eq (car c) 'undefined)
8748 (vector (caddr c) (car c) :active t)))
8749 gnus-mime-security-button-commands))))
8751 (defun gnus-mime-security-button-menu (event prefix)
8752 "Construct a context-sensitive menu of security commands."
8754 (save-window-excursion
8755 (let ((pos (event-start event)))
8756 (select-window (posn-window pos))
8757 (goto-char (posn-point pos))
8758 (gnus-article-check-buffer)
8759 (popup-menu gnus-mime-security-button-menu nil prefix))))
8761 (defvar gnus-mime-security-details-buffer nil)
8763 (defvar gnus-mime-security-button-pressed nil)
8765 (defvar gnus-mime-security-show-details-inline t
8766 "If non-nil, show details in the article buffer.")
8768 (defun gnus-mime-security-verify-or-decrypt (handle)
8769 (mm-remove-parts (cdr handle))
8770 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8771 point (inhibit-read-only t))
8772 (if region
8773 (goto-char (car region)))
8774 (setq point (point))
8775 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8776 (let* ((mm-verify-option 'known)
8777 (mm-decrypt-option 'known)
8778 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8779 (unless (eq nparts (cdr handle))
8780 (mm-destroy-parts (cdr handle))
8781 (setcdr handle nparts))))
8782 (gnus-mime-display-security handle)
8783 (when region
8784 (delete-region (point) (cdr region))
8785 (set-marker (car region) nil)
8786 (set-marker (cdr region) nil))
8787 (goto-char point)))
8789 (defun gnus-mime-security-show-details (handle)
8790 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8791 (if (not details)
8792 (gnus-message 5 "No details.")
8793 (if gnus-mime-security-show-details-inline
8794 (let ((gnus-mime-security-button-pressed
8795 (not (get-text-property (point) 'gnus-mime-details)))
8796 (gnus-mime-security-button-line-format
8797 (get-text-property (point) 'gnus-line-format))
8798 (inhibit-read-only t))
8799 (forward-char -1)
8800 (while (eq (get-text-property (point) 'gnus-line-format)
8801 gnus-mime-security-button-line-format)
8802 (forward-char -1))
8803 (forward-char)
8804 (save-restriction
8805 (narrow-to-region (point) (point))
8806 (gnus-insert-mime-security-button handle))
8807 (delete-region (point)
8808 (or (text-property-not-all
8809 (point) (point-max)
8810 'gnus-line-format
8811 gnus-mime-security-button-line-format)
8812 (point-max))))
8813 ;; Not inlined.
8814 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8815 (with-current-buffer gnus-mime-security-details-buffer
8816 (erase-buffer)
8817 t)
8818 (setq gnus-mime-security-details-buffer
8819 (gnus-get-buffer-create "*MIME Security Details*")))
8820 (with-current-buffer gnus-mime-security-details-buffer
8821 (insert details)
8822 (goto-char (point-min)))
8823 (pop-to-buffer gnus-mime-security-details-buffer)))))
8825 (defun gnus-mime-security-press-button (handle)
8826 (save-excursion
8827 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8828 (gnus-mime-security-show-details handle)
8829 (gnus-mime-security-verify-or-decrypt handle))))
8831 (defun gnus-insert-mime-security-button (handle &optional _displayed)
8832 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8833 (gnus-tmp-type
8834 (concat
8835 (or (nth 2 (assoc protocol mm-verify-function-alist))
8836 (nth 2 (assoc protocol mm-decrypt-function-alist))
8837 "Unknown")
8838 (if (equal (car handle) "multipart/signed")
8839 " Signed" " Encrypted")
8840 " Part"))
8841 (gnus-tmp-info
8842 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8843 "Undecided"))
8844 (gnus-tmp-details
8845 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8846 gnus-tmp-pressed-details
8847 b e)
8848 (setq gnus-tmp-details
8849 (if gnus-tmp-details
8851 ""))
8852 (setq gnus-tmp-pressed-details
8853 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8854 (unless (bolp)
8856 (setq b (point))
8857 (gnus-eval-format
8858 gnus-mime-security-button-line-format
8859 gnus-mime-security-button-line-format-alist
8860 `(keymap ,gnus-mime-security-button-map
8861 gnus-callback gnus-mime-security-press-button
8862 gnus-line-format ,gnus-mime-security-button-line-format
8863 gnus-mime-details ,gnus-mime-security-button-pressed
8864 article-type annotation
8865 gnus-data ,handle))
8866 (setq e (if (bolp)
8867 ;; Exclude a newline.
8868 (1- (point))
8869 (point)))
8870 (when gnus-article-button-face
8871 (overlay-put (make-overlay b e nil t)
8872 'face gnus-article-button-face))
8873 (widget-convert-button
8874 'link b e
8875 :mime-handle handle
8876 :action 'gnus-widget-press-button
8877 :button-keymap gnus-mime-security-button-map
8878 :help-echo
8879 (lambda (_widget)
8880 (format
8881 "%S: show detail; %S: more options"
8882 'mouse-2
8883 'down-mouse-3)))))
8885 (defun gnus-mime-display-security (handle)
8886 (save-restriction
8887 (narrow-to-region (point) (point))
8888 (unless (gnus-unbuttonized-mime-type-p (car handle))
8889 (gnus-insert-mime-security-button handle))
8890 (gnus-mime-display-part (cadr handle))
8891 (unless (bolp)
8893 (unless (gnus-unbuttonized-mime-type-p (car handle))
8894 (let ((gnus-mime-security-button-line-format
8895 gnus-mime-security-button-end-line-format))
8896 (gnus-insert-mime-security-button handle)))
8897 (mm-set-handle-multipart-parameter
8898 handle 'gnus-region (cons (point-min-marker) (point-max-marker)))
8899 (goto-char (point-max))))
8901 (defun gnus-mime-security-run-function (function)
8902 "Run FUNCTION with the security part under point."
8903 (gnus-article-check-buffer)
8904 (let ((data (get-text-property (point) 'gnus-data))
8905 buffer handle)
8906 (when (and (stringp (car-safe data))
8907 (setq buffer (mm-handle-multipart-original-buffer data))
8908 (setq handle (cadr data)))
8909 (if (bufferp (mm-handle-buffer handle))
8910 (progn
8911 (setq handle (cons buffer (copy-sequence (cdr handle))))
8912 (mm-handle-set-undisplayer handle nil))
8913 (setq handle (mm-make-handle
8914 buffer
8915 (mm-handle-multipart-ctl-parameter handle 'protocol)
8916 nil nil nil nil nil nil)))
8917 (funcall function handle))))
8919 (defun gnus-mime-security-save-part ()
8920 "Save the security part under point."
8921 (interactive)
8922 (gnus-mime-security-run-function 'mm-save-part))
8924 (defun gnus-mime-security-pipe-part ()
8925 "Pipe the security part under point to a process."
8926 (interactive)
8927 (gnus-mime-security-run-function 'mm-pipe-part))
8929 (provide 'gnus-art)
8931 (run-hooks 'gnus-art-load-hook)
8933 ;;; gnus-art.el ends here