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1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996-2015 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 ;; We use to have `intangible' here as well, but Emacs's command loop moves
259 ;; point out of invisible text anyway, so `intangible' is clearly not
260 ;; needed there. And XEmacs doesn't handle `intangible' anyway.
262 "Property list to use for hiding text."
266 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
267 ;; frames in a session.
272 'gnus-display-x-face-in-from
273 "{ echo \
274 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
277 'gnus-display-x-face-in-from
278 "{ echo \
279 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
281 "*String or function to be executed to display an X-Face header.
282 If it is a string, the command will be executed in a sub-shell
283 asynchronously. The compressed face will be piped to this command."
286 function)
292 "Regexp matching posters whose face shouldn't be shown automatically."
297 "Banner alist for stripping.
298 For example,
299 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
305 banner
306 :variable-document
307 "Alist of regexps (to match group names) and banner."
308 :variable-group gnus-article-washing
309 :parameter-type
311 :value nil
314 regexp
316 :parameter-document
317 "If non-nil, specify how to remove `banners' from articles.
319 Symbol `signature' means to remove signatures delimited by
320 `gnus-signature-separator'. Any other symbol is used to look up a
321 regular expression to match the banner in `gnus-article-banner-alist'.
322 A string is used as a regular expression to match the banner
326 "Alist of mail addresses and banners.
327 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
328 to match a mail address in the From: header, BANNER is one of a symbol
329 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
330 If ADDRESS matches author's mail address, it will remove things like
331 advertisements. For example:
334 "
341 regexp
356 2
359 value)))
367 pattern)
372 value))))
390 types))
392 ;; several times seen it triggered by normal text. --Stef
393 ;; Miles suggests that this form is sometimes used but for italics,
394 ;; so maybe we should map it to `italic'.
395 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
396 ;; 2 3 gnus-emphasis-strikethru)
399 "*Alist that says how to fontify certain phrases.
400 Each item looks like this:
404 The first element is a regular expression to be matched. The second
405 is a number that says what regular expression grouping used to find
406 the entire emphasized word. The third is a number that says what
407 regexp grouping should be displayed and highlighted. The fourth
408 is the face used for highlighting."
409 :type
416 :value-create
424 widget
425 :value
428 regexp
431 face)
439 face)))
445 value)))
449 "A regexp to describe whitespace which should not be emphasized.
451 The former avoids underlining of leading and trailing whitespace,
452 and the latter avoids underlining any whitespace at all."
458 "Face used for displaying strong emphasized text (*word*)."
462 "Face used for displaying italic emphasized text (/word/)."
466 "Face used for displaying underlined emphasized text (_word_)."
470 "Face used for displaying underlined bold emphasized text (_*word*_)."
474 "Face used for displaying underlined italic emphasized text (_/word/_)."
478 "Face used for displaying bold italic emphasized text (/*word*/)."
483 "Face used for displaying underlined bold italic emphasized text.
484 Example: (_/*word*/_)."
490 "Face used for displaying strike-through text (-word-)."
495 "Face used for displaying highlighted words."
499 "Format for display of Date headers in article bodies.
500 See `format-time-string' for the possible values.
502 The variable can also be function, which should return a complete Date
503 header. The function is called with one argument, the time, which can
504 be fed to `format-time-string'."
510 "*If non-nil, don't remove any headers before saving.
511 This will be overridden by the `:headers' property that the symbol of
512 the saver function, which is specified by `gnus-default-article-saver',
513 might have."
518 "*This variable says how much prompting is to be done when saving articles.
519 If it is nil, no prompting will be done, and the articles will be
520 saved to the default files. If this variable is `always', each and
521 every article that is saved will be preceded by a prompt, even when
522 saving large batches of articles. If this variable is neither nil not
523 `always', there the user will be prompted once for a file name for
524 each invocation of the saving commands."
531 "Headers to keep if `gnus-save-all-headers' is nil.
532 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
533 If that variable is nil, however, all headers that match this regexp
534 will be kept while the rest will be deleted before saving. This and
535 `gnus-save-all-headers' will be overridden by the `:headers' property
536 that the symbol of the saver function, which is specified by
537 `gnus-default-article-saver', might have."
541 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
543 "A function to save articles in your favorite format.
544 The function will be called by way of the `gnus-summary-save-article'
545 command, and friends such as `gnus-summary-save-article-rmail'.
547 Gnus provides the following functions:
549 * gnus-summary-save-in-rmail (Rmail format)
550 * gnus-summary-save-in-mail (Unix mail format)
551 * gnus-summary-save-in-folder (MH folder)
552 * gnus-summary-save-in-file (article format)
553 * gnus-summary-save-body-in-file (article body)
554 * gnus-summary-save-in-vm (use VM's folder format)
555 * gnus-summary-write-to-file (article format -- overwrite)
556 * gnus-summary-write-body-to-file (article body -- overwrite)
557 * gnus-summary-save-in-pipe (article format)
559 The symbol of each function may have the following properties:
561 * :decode
562 The value non-nil means save decoded articles. This is meaningful
563 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
564 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
565 `gnus-summary-save-in-pipe'.
567 * :function
568 The value specifies an alternative function which appends, not
569 overwrites, articles to a file. This implies that when saving many
570 articles at a time, `gnus-prompt-before-saving' is bound to t and all
571 articles are saved in a single file. This is meaningful only with
572 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
574 * :headers
575 The value specifies the symbol of a variable of which the value
576 specifies headers to be saved. If it is omitted,
577 `gnus-save-all-headers' and `gnus-saved-headers' control what
578 headers should be saved."
596 "Coding system used to save decoded articles to a file.
598 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
599 which can safely encode any characters in text. This is used by the
600 commands including:
602 * gnus-summary-save-article-file
603 * gnus-summary-save-article-body-file
604 * gnus-summary-write-article-file
605 * gnus-summary-write-article-body-file
607 and the functions to which you may set `gnus-default-article-saver':
609 * gnus-summary-save-in-file
610 * gnus-summary-save-body-in-file
611 * gnus-summary-write-to-file
612 * gnus-summary-write-body-to-file
614 Those commands and functions save just text displayed in the article
615 buffer to a file if the value of this variable is non-nil. Note that
616 buttonized MIME parts will be lost in a saved file in that case.
617 Otherwise, raw articles will be saved."
632 "A function generating a file name to save articles in Rmail format.
633 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
638 "A function generating a file name to save articles in Unix mail format.
639 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
644 "A function generating a file name to save articles in MH folder.
645 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
650 "A function generating a file name to save articles in article format.
651 The function is called with NEWSGROUP, HEADERS, and optional
652 LAST-FILE."
659 "*Variable used to suggest where articles are to be saved.
660 For instance, if you would like to save articles related to Gnus in
662 you could set this variable to something like:
667 This variable is an alist where the key is the match and the
668 value is a list of possible files to save in if the match is
669 non-nil.
671 If the match is a string, it is used as a regexp match on the
672 article. If the match is a symbol, that symbol will be funcalled
673 from the buffer of the article to be saved with the newsgroup as the
674 parameter. If it is a list, it will be evalled in the same buffer.
676 If this form or function returns a string, this string will be used as a
677 possible file name; and if it returns a non-nil list, that list will be
678 used as possible file names."
685 "*Regexp describing what to use as article page delimiters.
687 beginning of a line."
692 "*The format specification for the article mode line.
693 See `gnus-summary-mode-line-format' for a closer description.
695 The following additional specs are available:
697 %w The article washing status.
698 %m The number of MIME parts in the article."
704 "*A hook for Gnus article mode."
709 ;; Extracted from gnus-xmas-define in order to preserve user settings
712 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
716 "*Hook run after the creation of the article mode menu."
721 "*A hook called after an article has been prepared in the article buffer."
726 "List of headers to be removed when copying an article.
727 Each element is a regular expression."
737 "Face used for highlighting a button in the article buffer."
741 "Face used for highlighting buttons in the article buffer.
743 An article button is a piece of text that you can activate by pressing
744 `RET' or `mouse-2' above it."
749 "Face used for mouse highlighting in the article buffer.
751 Article buttons will be displayed in this face when the cursor is
752 above them."
757 "Face used for highlighting a signature in the article buffer.
758 Obsolete; use the face `gnus-signature' for customizations instead."
766 "Face used for highlighting a signature in the article buffer."
769 ;; backward-compatibility alias
782 "Face used for displaying from headers."
785 ;; backward-compatibility alias
798 "Face used for displaying subject headers."
801 ;; backward-compatibility alias
814 "Face used for displaying newsgroups headers.
815 In the default setup this face is only used for crossposted
816 articles."
819 ;; backward-compatibility alias
832 "Face used for displaying header names."
835 ;; backward-compatibility alias
850 ;; backward-compatibility alias
859 "*Controls highlighting of article headers.
861 An alist of the form (HEADER NAME CONTENT).
863 HEADER is a regular expression which should match the name of a
864 header and NAME and CONTENT are either face names or nil.
866 The name of each header field will be displayed using the face
867 specified by the first element in the list where HEADER matches
868 the header name and NAME is non-nil. Similarly, the content will
869 be displayed by the first non-nil matching CONTENT face."
884 "Alist of image types and properties applied to Face and X-Face images.
885 Here are examples:
887 ;; Specify the altitude of Face images in the From header.
888 \(setq gnus-face-properties-alist
889 '((pbm . (:face gnus-x-face :ascent 80))
890 (png . (:ascent 80))))
892 ;; Show Face images as pressed buttons.
893 \(setq gnus-face-properties-alist
894 '((pbm . (:face gnus-x-face :relief -2))
895 (png . (:relief -2))))
897 See the manual for the valid properties for various image types.
898 Currently, `pbm' is used for X-Face images and `png' is used for Face
899 images in Emacs. Only the `:face' property is effective on the `xface'
900 image type in XEmacs if it is built with the libcompface library."
907 article-decode-group-name article-decode-idna-rhs)
908 "*Hook run to decode charsets in articles."
913 "Function to display MIME articles."
946 "List of MIME types that should be ignored by Gnus."
952 "List of MIME types that should not be given buttons when rendered inline.
953 See also `gnus-buttonized-mime-types' which may override this variable.
954 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
960 "List of MIME types that should be given buttons when rendered inline.
961 If set, this variable overrides `gnus-unbuttonized-mime-types'.
962 To see e.g. security buttons you could set this to
964 this list to display radio buttons that allow you to choose one of two
965 media types those mails include. See also `mm-discouraged-alternatives'.
966 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
972 "If non-nil, all MIME parts get buttons.
973 When nil (the default value), then some MIME parts do not get buttons,
974 as described by the variables `gnus-buttonized-mime-types' and
975 `gnus-unbuttonized-mime-types'."
981 "String used to delimit header and body.
982 This variable is used by `gnus-article-treat-body-boundary' which can
983 be controlled by `gnus-treat-body-boundary'."
987 string))
991 "Defines the location of the faces database.
992 For information on obtaining this database of pretty pictures, please
993 see http://www.cs.indiana.edu/picons/ftp/index.html"
1002 "Say whether picons are installed on your machine."
1007 installed))
1010 "Function called with a MIME handle as the argument.
1011 This is meant for people who want to do something automatic based
1012 on parts -- for instance, adding Vcard info to a database."
1015 function))
1018 "An alist of MIME types to functions to display them."
1024 "A list of Date header formats to display.
1025 Valid formats are `ut' (universal time), `local' (local time
1026 zone), `english' (readable English), `lapsed' (elapsed time),
1027 `combined-lapsed' (both the original date and the elapsed time),
1028 `original' (the original date header), `iso8601' (ISO8601
1029 format), and `user-defined' (a user-defined format defined by the
1030 `gnus-article-time-format' variable).
1032 You have as many date headers as you want in the article buffer.
1033 Some of these headers are updated automatically. See
1034 `gnus-article-update-date-headers' for details."
1048 "A number that says how often to update the date header (in seconds).
1049 If nil, don't update it at all."
1054 integer))
1057 "Function called with a MIME handle as the argument.
1058 This is meant for people who want to view first matched part.
1059 For `undisplayed-alternative' (default), the first undisplayed
1060 part or alternative part is used. For `undisplayed', the first
1061 undisplayed part is used. For a function, the first part which
1062 the function return t is used. For nil, the first part is
1063 used."
1086 "An alist of actions that run on the MIME attachment."
1092 "Advance to next MIME part when deleting or stripping parts.
1094 When 0, point will be placed on the same part as before. When
1095 positive (negative), move point forward (backwards) this many
1096 parts. When nil, redisplay article."
1102 integer))
1104 ;;;
1105 ;;; The treatment variables
1106 ;;;
1133 "Highlight the signature.
1134 Valid values are nil, t, `head', `first', `last', an integer or a
1135 predicate. See Info node `(gnus)Customizing Articles'."
1142 "Add buttons.
1143 Valid values are nil, t, `head', `first', `last', an integer or a
1144 predicate. See Info node `(gnus)Customizing Articles'."
1151 "Add buttons to the head.
1152 Valid values are nil, t, `head', `first', `last', an integer or a
1153 predicate. See Info node `(gnus)Customizing Articles'."
1160 "Display dates according to the `gnus-article-date-headers' variable.
1161 Valid values are nil, t, `head', `first', `last', an integer or a
1162 predicate. See Info node `(gnus)Customizing Articles'."
1169 "Emphasize text.
1170 Valid values are nil, t, `head', `first', `last', an integer or a
1171 predicate. See Info node `(gnus)Customizing Articles'."
1178 "Remove carriage returns.
1179 Valid values are nil, t, `head', `first', `last', an integer or a
1180 predicate. See Info node `(gnus)Customizing Articles'."
1187 "Remove newlines from within URLs.
1188 Valid values are nil, t, `head', `first', `last', an integer or a
1189 predicate. See Info node `(gnus)Customizing Articles'."
1196 "Remove leading whitespace in headers.
1197 Valid values are nil, t, `head', `first', `last', an integer or a
1198 predicate. See Info node `(gnus)Customizing Articles'."
1205 "Hide headers.
1206 Valid values are nil, t, `head', `first', `last', an integer or a
1207 predicate. See Info node `(gnus)Customizing Articles'."
1213 "Hide boring headers.
1214 Valid values are nil, t, `head', `first', `last', an integer or a
1215 predicate. See Info node `(gnus)Customizing Articles'."
1221 "Hide the signature.
1222 Valid values are nil, t, `head', `first', `last', an integer or a
1223 predicate. See Info node `(gnus)Customizing Articles'."
1229 "Fill the article.
1230 Valid values are nil, t, `head', `first', `last', an integer or a
1231 predicate. See Info node `(gnus)Customizing Articles'."
1237 "Hide cited text.
1238 Valid values are nil, t, `head', `first', `last', an integer or a
1239 predicate. See Info node `(gnus)Customizing Articles'.
1241 See `gnus-article-highlight-citation' for variables used to
1242 control what it hides."
1248 "Hide cited text according to certain conditions.
1249 Valid values are nil, t, `head', `first', `last', an integer or a
1250 predicate. See Info node `(gnus)Customizing Articles'.
1252 See `gnus-cite-hide-percentage' and `gnus-cite-hide-absolute' for
1253 how to control what it hides."
1259 "Strip list identifiers from `gnus-list-identifiers'.
1260 Valid values are nil, t, `head', `first', `last', an integer or a
1261 predicate. See Info node `(gnus)Customizing Articles'."
1268 list-identifier
1269 :variable-document
1270 "Alist of regexps and correspondent identifiers."
1271 :variable-group gnus-article-washing
1272 :parameter-type
1274 :value nil
1276 regexp
1278 :parameter-document
1279 "If non-nil, specify how to remove `identifiers' from articles' subject.
1281 Any symbol is used to look up a regular expression to match the
1282 banner in `gnus-list-identifiers'. A string is used as a regular
1289 "Strip PEM signatures.
1290 Valid values are nil, t, `head', `first', `last', an integer or a
1291 predicate. See Info node `(gnus)Customizing Articles'."
1297 "Strip banners from articles.
1298 The banner to be stripped is specified in the `banner' group parameter.
1299 Valid values are nil, t, `head', `first', `last', an integer or a
1300 predicate. See Info node `(gnus)Customizing Articles'."
1306 "Highlight the headers.
1307 Valid values are nil, t, `head', `first', `last', an integer or a
1308 predicate. See Info node `(gnus)Customizing Articles'."
1315 "Highlight cited text.
1316 Valid values are nil, t, `head', `first', `last', an integer or a
1317 predicate. See Info node `(gnus)Customizing Articles'."
1324 "Strip the X-No-Archive header line from the beginning of the body.
1325 Valid values are nil, t, `head', `first', `last', an integer or a
1326 predicate. See Info node `(gnus)Customizing Articles'."
1333 "Strip trailing blank lines.
1334 Valid values are nil, t, `head', `first', `last', an integer or a
1335 predicate. See Info node `(gnus)Customizing Articles'.
1337 When set to t, it also strips trailing blanks in all MIME parts.
1338 Consider to use `last' instead."
1344 "Strip leading blank lines.
1345 Valid values are nil, t, `head', `first', `last', an integer or a
1346 predicate. See Info node `(gnus)Customizing Articles'.
1348 When set to t, it also strips trailing blanks in all MIME parts."
1354 "Strip multiple blank lines.
1355 Valid values are nil, t, `head', `first', `last', an integer or a
1356 predicate. See Info node `(gnus)Customizing Articles'."
1362 "Unfold folded header lines.
1363 Valid values are nil, t, `head', `first', `last', an integer or a
1364 predicate. See Info node `(gnus)Customizing Articles'."
1371 "If non-nil, allow unfolding headers even if the header is long.
1372 If it is a regexp, only long headers matching this regexp are unfolded.
1373 If it is t, all long headers are unfolded.
1375 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1383 "Fold headers.
1384 Valid values are nil, t, `head', `first', `last', an integer or a
1385 predicate. See Info node `(gnus)Customizing Articles'."
1392 "Fold the Newsgroups and Followup-To headers.
1393 Valid values are nil, t, `head', `first', `last', an integer or a
1394 predicate. See Info node `(gnus)Customizing Articles'."
1401 "Treat overstrike highlighting.
1402 Valid values are nil, t, `head', `first', `last', an integer or a
1403 predicate. See Info node `(gnus)Customizing Articles'."
1410 "Treat ANSI SGR control sequences.
1411 Valid values are nil, t, `head', `first', `last', an integer or a
1412 predicate. See Info node `(gnus)Customizing Articles'."
1428 ;; shell-command-to-string may signal an error, e.g. if
1429 ;; shell-file-name is not found.
1432 "Display X-Face headers.
1433 Valid values are nil and `head'.
1434 See Info node `(gnus)Customizing Articles' and Info node
1435 `(gnus)X-Face' for details."
1440 :type gnus-article-treat-head-custom
1443 symbol
1445 value)
1448 ** gnus-treat-display-xface is an obsolete variable;\
1453 ** gnus-treat-display-xface is an obsolete variable;\
1457 value)))))
1464 "Display Face headers.
1465 Valid values are nil, t, `head', `first', `last', an integer or a
1466 predicate. See Info node `(gnus)Customizing Articles' and Info
1467 node `(gnus)Face' for details."
1476 "Display smileys.
1477 Valid values are nil, t, `head', `first', `last', an integer or a
1478 predicate. See Info node `(gnus)Customizing Articles' and Info
1479 node `(gnus)Smileys' for details."
1491 "Display picons in the From header.
1492 Valid values are nil, t, `head', `first', `last', an integer or a
1493 predicate. See Info node `(gnus)Customizing Articles' and Info
1494 node `(gnus)Picons' for details."
1507 "Display picons in To and Cc headers.
1508 Valid values are nil, t, `head', `first', `last', an integer or a
1509 predicate. See Info node `(gnus)Customizing Articles' and Info
1510 node `(gnus)Picons' for details."
1523 "Display picons in the Newsgroups and Followup-To headers.
1524 Valid values are nil, t, `head', `first', `last', an integer or a
1525 predicate. See Info node `(gnus)Customizing Articles' and Info
1526 node `(gnus)Picons' for details."
1536 "Display gravatars in the From header.
1537 Valid values are nil, t, `head', `first', `last', an integer or a
1538 predicate. See Info node `(gnus)Customizing Articles' and Info
1539 node `(gnus)Gravatars' for details."
1549 "Display gravatars in To and Cc headers.
1550 Valid values are nil, t, `head', `first', `last', an integer or a
1551 predicate. See Info node `(gnus)Customizing Articles' and Info
1552 node `(gnus)Gravatars' for details."
1563 gnus-treat-mail-picon
1564 gnus-treat-from-picon
1565 gnus-treat-from-gravatar
1566 gnus-treat-mail-gravatar)
1567 ;; If there's much decoration, the user might prefer a boundary.
1568 'head
1569 nil)
1570 "Draw a boundary at the end of the headers.
1571 Valid values are nil and `head'.
1572 See Info node `(gnus)Customizing Articles' for details."
1579 "Capitalize sentence-starting words.
1580 Valid values are nil, t, `head', `first', `last', an integer or a
1581 predicate. See Info node `(gnus)Customizing Articles'."
1588 "Format as HTML.
1589 Valid values are nil, t, `head', `first', `last', an integer or a
1590 predicate. See Info node `(gnus)Customizing Articles'."
1597 "Fill long lines.
1598 Valid values are nil, t, `head', `first', `last', an integer or a
1599 predicate. See Info node `(gnus)Customizing Articles'."
1606 "Verify X-PGP-Sig.
1607 To automatically treat X-PGP-Sig, set it to head.
1608 Valid values are nil, t, `head', `first', `last', an integer or a
1609 predicate. See Info node `(gnus)Customizing Articles'."
1619 ;; Set to nil if more than one protocol added to
1620 ;; gnus-article-encrypt-protocol-alist.
1622 "The protocol used for encrypt articles.
1635 idna-program
1637 "Whether IDNA decoding of headers is used when viewing messages.
1638 This requires GNU Libidn, and by default only enabled if it is found."
1644 "If non-nil, allow scrolling the article buffer even when there no more text."
1650 "Non-nil means inhibit displaying of images inline in the article body."
1656 "Images that have URLs matching this regexp will be blocked.
1657 This can also be a function to be evaluated. If so, it will be
1658 called with the group name as the parameter, and should return a
1659 regexp."
1664 ;;; Internal variables
1703 gnus-article-remove-trailing-blank-lines)
1705 gnus-article-strip-leading-blank-lines)
1707 gnus-article-strip-multiple-blank-lines)
1729 ;; This causes the citation match run O(2^n).
1730 ;; (modify-syntax-entry ?- "w" table)
1733 ;; make M-. in article buffers work for `foo' strings
1736 table)
1737 "Syntax table used in article mode buffers.
1748 ;;; Macros for dealing with the article buffer.
1772 "Go to HEADER, which is a regular expression."
1776 "Set text PROPS on the B to E region."
1780 "Remove hidden text properties from region between B and E."
1784 "Hide text of TYPE between B and E."
1790 "Unhide text of TYPE between B and E."
1796 "Delete text of TYPE in the current buffer."
1800 ;; Remove MIME buttons associated with multipart/alternative parts.
1808 t))
1819 "Delete all invisible text in the current buffer."
1828 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1836 i))
1839 "Hide unwanted headers and possibly sort them as well."
1841 ;; This function might be inhibited.
1848 ignored visible beg)
1850 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1851 ;; group parameters, so we should go to the summary buffer.
1858 gnus-ignored-headers)
1861 gnus-ignored-headers
1864 gnus-visible-headers)
1868 gnus-visible-headers
1872 ;; First we narrow to just the headers.
1874 ;; Hide any "From " lines at the beginning of (mail) articles.
1879 ;; Then treat the rest of the header lines.
1880 ;; Then we use the two regular expressions
1881 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1882 ;; select which header lines is to remain visible in the
1883 ;; article buffer.
1886 ;; Mark the rank of the header.
1898 ;; We delete the unwanted headers.
1905 "Toggle hiding of headers that aren't very interesting.
1906 If given a negative prefix, always show; if given a positive prefix,
1907 always hide."
1919 ;; Hide empty headers.
1931 ;; Hide boring Newsgroups header.
1937 gnus-newsgroup-name
1949 ;; only one address in To
1951 to-address)))
1962 ;; only one address in To
1964 to-list)))
1975 ;; only one address in CC
1977 to-list)))
1992 from reply-to
2006 ;; If date in `gnus-article-buffer' is localized
2007 ;; (`gnus-treat-date-user-defined'),
2008 ;; `days-between' might fail.
2066 "Make all header lines 40 characters long."
2069 column)
2076 gnus-article-normalized-header-length)
2080 ? )))
2089 ;; Do nothing.
2090 ))
2094 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2095 Note that this function guesses whether a character is a sm*rtq**t* or
2096 not, so it should only be used interactively.
2098 Sm*rtq**t*s are M****s***'s unilateral extension to the
2099 iso-8859-1 character map in an attempt to provide more quoting
2101 you're expecting some kind of apostrophe or quotation mark, then
2102 try this wash."
2109 "Translate many Unicode characters into their ASCII equivalents."
2122 replace props)
2132 props)
2136 "Translate all string in the body of the article according to MAP.
2156 "Translate overstrikes into bold text."
2164 ;; We do the boldification/underlining by hiding the
2165 ;; overstrikes and putting the proper text property
2166 ;; on the letters.
2182 "Translate ANSI SGR control sequences into overlays or extents."
2190 "Unfold folded message headers.
2191 Only the headers that fit into the current window width will be
2192 unfolded."
2204 header)))))
2218 "Fold message headers."
2241 "Remove all images from the article buffer."
2252 "Show any images that are in the HTML-rendered article buffer.
2253 This only works if the article in question is HTML."
2265 start end)))))))
2268 "Unfold folded message headers.
2269 Only the headers that fit into the current window width will be
2270 unfolded."
2282 "Value of `truncate-lines' in Gnus Article buffer.
2283 Valid values are nil, t, `head', `first', `last', an integer or a
2284 predicate. See Info node `(gnus)Customizing Articles'."
2287 ;; :link '(custom-manual "(gnus)Customizing Articles")
2291 "Toggle whether to fold or truncate long lines in article the buffer.
2292 If ARG is non-nil and not a number, toggle
2293 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2294 long lines if and only if arg is positive."
2310 ;; In versions of Emacs 22 (CVS) before 2006-05-26,
2311 ;; `toggle-truncate-lines' needs an argument.
2315 "Place a boundary line at the end of the headers."
2334 "Fill lines that are wider than the window width."
2354 "Capitalize the first word in each sentence."
2365 "Remove trailing CRs and then translate remaining CRs into LFs."
2377 "Remove all trailing blank lines from the article."
2396 "Display any Face headers in the header."
2400 ;; When displaying parts, this function can be called several times on
2401 ;; the same article, without any intended toggle semantic (as typing `W
2402 ;; D d' would have). So face deletion must occur only when we come from
2403 ;; an interactive command, that is when the *Article* buffer is
2404 ;; read-only.
2408 faces)
2417 ;; Check whether this face is censored.
2422 from))))
2444 "Look for an X-Face header and display it if present."
2448 ;; Delete the old process, if any.
2451 ;; See the comment in `article-display-face'.
2453 ;; We have already displayed X-Faces, so we remove them
2454 ;; instead.
2456 ;; Display X-Faces.
2458 x-faces)
2463 ;; If type `W f', use gnus-original-article-buffer,
2464 ;; otherwise use the current buffer because displaying
2465 ;; RFC822 parts calls this function too.
2471 ;; Check whether this face is censored.
2476 from))))
2480 ;; We display the face.
2482 ;; The command is a lisp function, so we call it.
2485 ;; The command is a string, so we interpret the command
2486 ;; as a, well, command, and fork it off.
2490 "article-x-face" nil shell-file-name
2491 shell-command-switch gnus-article-x-face-command)
2492 nil)
2493 ;; Sending multiple EOFs to xv doesn't work,
2494 ;; so we only do a single external face.
2502 gnus-article-x-face-command
2506 "Decode all MIME-encoded words in the article."
2513 gnus-newsgroup-ignored-charsets)))
2517 "Decode charset-encoded text in the article.
2518 If PROMPT (the prefix), prompt for a coding system to use."
2527 gnus-newsgroup-ignored-charsets))
2528 ct cte ctl charset format)
2551 ;; The text code could have been decoded.
2562 "Remove encoded-word encoding from headers."
2569 gnus-newsgroup-ignored-charsets))
2571 end start)
2590 "Decode group names in Newsgroups, Followup-To and Xref headers."
2594 regexp)
2596 gnus-group-name-charset-group-alist)
2608 ;; XXX how to use data in article buffer?
2612 gnus-newsgroup-name method))
2619 "Decode IDNA strings in RHS in various headers in current buffer.
2620 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2621 Mail-Reply-To: and Mail-Followup-To:."
2640 "Translate a quoted-printable-encoded article.
2641 If FORCE, decode the article whether it is marked as quoted-printable
2642 or not.
2643 If READ-CHARSET, ask for a coding system."
2669 "Translate a base64 article.
2670 If FORCE, decode the article whether it is marked as base64 not.
2671 If READ-CHARSET, ask for a coding system."
2704 "Translate a HZ-encoded article."
2712 "Remove the newlines that some other mailers insert into URLs."
2724 "Format an HTML article."
2737 "List of temporary files created by `gnus-article-browse-html-parts'.
2741 "What to do with temporary files from `gnus-article-browse-html-parts'.
2742 If nil, don't delete temporary files. If it is t, delete them on
2743 exit from the summary buffer. If it is the symbol `file', query
2744 on each file, if it is `ask' ask once when exiting from the
2745 summary buffer."
2753 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2756 "Delete temp-files created by `gnus-article-browse-html-parts'."
2764 "Delete the temporary HTML file? "
2766 files)))
2768 how)))
2774 "Delete temporary HTML file(s) in directory `%s'? "
2782 ;; Also remove file from the list when not deleted or if file doesn't
2783 ;; exist anymore.
2785 gnus-article-browse-html-temp-list)
2788 "Find CID content in HANDLES and save it in a file in DIRECTORY.
2789 Return file name relative to the parent of DIRECTORY."
2796 ;; Exclude broken handles that `gnus-summary-enter-digest-group'
2797 ;; may create.
2801 cid handle directory))
2808 mailcap-mime-extensions))))
2817 Recurse into multiparts. The optional HEADER that should be a decoded
2819 ;; Internal function used by `gnus-article-browse-html-article'.
2821 ;; Find and show the html-parts.
2823 ;; If HTML, show it:
2835 nil)))
2847 ;; resolve cid contents
2849 st base regexp cid-file)
2870 base))
2877 nil t)
2882 content nil)
2887 gnus-article-mime-handles)
2888 cid-dir))
2893 ;; Do we need to care for 8.3 filenames?
2895 ;; Add a meta html tag to specify charset and a header.
2906 nil t)
2922 ;; We have to examine charset one by one since
2923 ;; charset specified in parts might be different.
2927 charset)
2936 hcharset nil t)))
2939 coding hcharset)))
2945 nil t))
2951 title coding))
2952 body content)
2958 title charset))
2961 content body)
2962 charset))))
2968 title coding))
2969 body content))
2971 body content)))
2995 content))
3010 ;; FIXME: Warn if there's an <img> tag?
3013 ;; If multipart, recurse
3028 gnus-visible-headers)))
3038 showed))
3042 Inline images embedded in a message using the cid scheme, as they are
3043 generally considered to be safe, will be processed properly.
3044 The message header is added to the beginning of every html part unless
3045 the prefix argument ARG is given.
3047 Warning: Spammers use links to images (using the http scheme) in HTML
3048 articles to verify whether you have read the message. As
3049 `gnus-article-browse-html-article' passes the HTML content to the
3051 use it for mails from trusted senders.
3053 If you always want to display HTML parts in the browser, set
3054 `mm-text-html-renderer' to nil.
3056 This command creates temporary files to pass HTML contents including
3057 images if any to the browser, and deletes them when exiting the group
3058 \(if you want)."
3059 ;; Cf. `mm-w3m-safe-url-regexp'
3064 gnus-visible-headers))
3065 ;; As we insert a <hr>, there's no need for the body boundary.
3079 parts)
3082 ;; If singlepart, enforce a list.
3086 ;; Process the list
3094 "Remove list identifiers from the Subject header.
3095 The `gnus-list-identifiers' variable specifies what to do."
3107 nil t)
3115 "Toggle hiding of any PEM headers and signatures in the current article.
3116 If given a negative prefix, always show; if given a positive prefix,
3117 always hide."
3123 ;; Hide the horrendously ugly "header".
3126 nil t)
3130 end
3135 ;; Hide the trailer as well
3137 nil t)
3142 "Strip the banners specified by the `banner' group parameter and by
3143 `gnus-article-address-banner-alist'."
3152 ;; Note that the From header is decoded here, so it is
3153 ;; required that the *-extract-address-components function
3154 ;; supports non-ASCII text.
3162 from))))
3170 "Strip the banner specified by the argument."
3192 "Translate article using an online translation service."
3207 "Hide the signature in the current article.
3208 If given a negative prefix, always show; if given a positive prefix,
3209 always hide."
3221 "Strip offensive headers from bodies."
3230 "Remove all blank lines from the beginning of the article."
3241 "Narrow the buffer to the head of the message.
3242 Point is left at the beginning of the narrowed-to region."
3246 ;; Absolutely no headers displayed.
3249 ;; Normal headers.
3252 ;; Nothing but headers.
3258 "Place point at the start of the body."
3261 ;; This variable is only bound when dealing with separate
3262 ;; MIME body parts.
3264 t)
3266 t)
3269 nil)))
3272 "Replace consecutive blank lines with one empty line."
3277 ;; First make all blank lines empty.
3283 ;; Then replace multiple empty lines with a single empty line.
3291 "Remove all white space from the beginning of the lines in the article."
3301 "Remove all white space from the end of the lines in the article."
3311 "Strip leading, trailing and multiple blank lines."
3318 "Strip all blank lines."
3328 "Narrow to the signature; return t if a signature is found, else nil."
3332 ;; Check whether we have some limits to what we consider
3333 ;; to be a signature.
3336 limit limited)
3348 limits nil)))
3351 t)))))
3354 "Search the current buffer for the signature separator.
3355 Put point at the beginning of the signature separator."
3364 seps))
3365 t
3367 nil)))
3370 "Return the current prefix arg as a number, or 0 if no prefix."
3376 "Return nil if hiding is necessary.
3377 Arg can be nil or a number. nil and positive means hide, negative
3378 means show, 0 means toggle."
3385 nil)
3388 t)
3393 t)
3394 nil)))))))
3397 "Say whether the current buffer contains hidden text of type TYPE."
3405 'hidden
3406 nil)))
3409 "Show all hidden text of type TYPE.
3410 Originally it is hide instead of DUMMY."
3414 'article-type type
3417 gnus-hidden-properties)))
3430 "Move point to the start of the next header.
3431 If the current header is a continuation header, this can be several
3432 lines forward."
3443 gnus-article-date-headers)
3444 gnus-article-date-headers)
3445 t))
3448 "Convert DATE date to TYPE in the current article.
3449 The default type is `ut'. See `gnus-article-date-headers' for
3450 possible values."
3456 pos date bface eface)
3501 visible-date)
3515 type)))
3525 ;; Do highlighting.
3537 "Return a DATE line of TYPE."
3539 combined-lapsed))
3544 ;; Convert to the local timezone.
3547 ;; Convert to Universal Time.
3561 ;; Get the original date from the article.
3565 date)))
3566 ;; Let the user define the format.
3570 gnus-article-time-format)
3572 gnus-article-time-format)))
3576 ;; ISO 8601.
3580 "Date: "
3585 ;; Do a lapsed format.
3588 ;; A combined date/lapsed format.
3592 lapsed-string)
3594 time
3604 date-string)))
3605 ;; Display the date in proper English
3609 "Date: the "
3618 " of "
3620 " "
3622 " at "
3624 ":"
3630 ;; If the date is seriously mangled, the timezone functions are
3631 ;; liable to bug out, so we ignore all errors.
3639 num prev)
3649 ;; This is a bit convoluted, but basically we go
3650 ;; through the time units for years, weeks, etc,
3651 ;; and divide things to see whether that results
3652 ;; in positive answers.
3657 ;; The (remaining) seconds are too few to
3658 ;; be divided into this time unit.
3659 ""
3660 ;; It's big enough, so we output it.
3670 ;; If dates are odd, then it might appear like the
3671 ;; article was sent in the future.
3673 " ago"
3677 "Convert the current article date to the local timezone."
3682 "Convert the current article date to something that is proper English."
3687 "Convert the current article date to what it was originally.
3688 This is only useful if you have used some other date conversion
3689 function and want to see what the date was before converting."
3694 "Convert the current article date to time lapsed since it was sent."
3699 "Convert the current article date to time lapsed since it was sent."
3704 "Function to be run from a timer to update the lapsed time line."
3716 type next end)
3746 "Start a timer to update the Date headers in the article buffers.
3747 The numerical prefix says how frequently (in seconds) the function
3748 is to run."
3757 "Stop the Date timer."
3764 "Convert the current article date to the user-defined format.
3765 This format is defined by the `gnus-article-time-format' variable."
3770 "Convert the current article date to ISO8601."
3775 "Save the original date as a text property and evaluate FORMS."
3784 nil t))
3790 ,@forms
3795 ;; (defun article-show-all ()
3796 ;; "Show all hidden text in the article buffer."
3797 ;; (interactive)
3798 ;; (save-excursion
3799 ;; (let ((inhibit-read-only t))
3800 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3803 "Remove excessive whitespace from all headers."
3814 "Emphasize text according to `gnus-emphasis-alist'."
3821 gnus-article-emphasis-alist)
3823 gnus-emphasis-alist))
3826 gnus-hidden-properties))
3827 regexp elem beg invisible visible face)
3848 "Setup newsgroup emphasis alist."
3860 highlight)
3865 gnus-emphasis-alist)))))
3870 ;;; Saving functions.
3873 "Save the currently selected article."
3876 ;; Remove headers according to `gnus-saved-headers' or the value
3877 ;; of the `:headers' property that the saver function might have.
3880 gnus-saved-headers gnus-visible-headers))
3881 ;; Ignore group parameter. See `article-hide-headers'.
3888 ;; !!! Magic! The saving functions all save
3889 ;; `gnus-save-article-buffer' (or so they think), but we
3890 ;; bind that variable to our save-buffer.
3905 function group headers variable
3906 dir-var)
3909 result)
3914 default-name)
3916 default-name)
3929 gnus-number-of-articles-to-be-saved)
3932 ;; Let the split methods have their say.
3934 ;; No split name was found.
3940 default-name))
3941 ;; A single group name is returned.
3950 default-name))
3951 ;; A single split name was found
3955 gnus-article-save-directory))
3962 dir name)))
3963 ;; A list of splits was found.
3973 gnus-article-save-directory
3975 gnus-article-save-directory)))
3977 ;; Create the directory.
3979 ;; If we have read a directory, we append the default file name.
3982 default-name)
3984 ;; Possibly translate some characters.
3991 result))
4001 "If GROUP is an nndoc group, return the name of the parent group."
4006 "Append this article to Rmail file.
4007 Optional argument FILENAME specifies file name.
4008 Directory to save to is default to `gnus-article-save-directory'."
4010 "Save %s in rmail file" filename
4011 gnus-rmail-save-name gnus-newsgroup-name
4017 ;; Note that unlike gnus-summary-save-in-mail, there is no
4018 ;; check to see if filename is Babyl. Rmail in Emacs 23 does
4019 ;; not use Babyl.
4021 filename)
4024 "Append this article to Unix mail file.
4025 Optional argument FILENAME specifies file name.
4026 Directory to save to is default to `gnus-article-save-directory'."
4028 "Save %s in Unix mail file" filename
4029 gnus-mail-save-name gnus-newsgroup-name
4040 filename)
4045 "Append this article to file.
4046 Optional argument FILENAME specifies file name.
4047 Directory to save to is default to `gnus-article-save-directory'."
4049 "Save %s in file" filename
4050 gnus-file-save-name gnus-newsgroup-name
4060 filename)
4066 "Write this article to a file, overwriting it if the file exists.
4067 Optional argument FILENAME specifies file name.
4068 The directory to save in defaults to `gnus-article-save-directory'."
4070 "Save %s in file" filename
4071 gnus-file-save-name gnus-newsgroup-name
4077 "Append this article body to a file.
4078 Optional argument FILENAME specifies file name.
4079 The directory to save in defaults to `gnus-article-save-directory'."
4081 "Save %s body in file" filename
4082 gnus-file-save-name gnus-newsgroup-name
4094 filename)
4100 "Write this article body to a file, overwriting it if the file exists.
4101 Optional argument FILENAME specifies file name.
4102 The directory to save in defaults to `gnus-article-save-directory'."
4104 "Save %s body in file" filename
4105 gnus-file-save-name gnus-newsgroup-name
4112 "Pipe this article to subprocess COMMAND.
4113 Valid values for COMMAND include:
4114 a string
4115 The executable command name and possibly arguments.
4116 nil
4117 You will be prompted for the command in the minibuffer.
4118 the symbol `default'
4119 It will be replaced with the command which the variable
4120 `gnus-summary-pipe-output-default-command' holds or the command
4121 last used for saving.
4122 Non-nil value for RAW overrides `:decode' and `:headers' properties
4123 and the raw article including all headers will be piped."
4127 save-buffer default)
4135 gnus-article-buffer
4136 gnus-original-article-buffer)
4139 ;; Remove unwanted headers.
4146 gnus-saved-headers gnus-visible-headers))
4152 gnus-last-shell-command))
4156 default
4158 default))))
4171 "Pipe this article to muttprint."
4174 "Print using command: " gnus-summary-muttprint-program
4175 nil gnus-summary-muttprint-program)))
4177 gnus-summary-pipe-output-default-command))
4181 ;;; Article file names when saving.
4184 "Capitalize NEWSGROUP name."
4190 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4191 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
4192 Otherwise, it is like ~/News/news/group/num."
4199 gnus-article-save-directory)))
4204 default
4208 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4209 If variable `gnus-use-long-file-name' is non-nil, it is
4210 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4214 newsgroup
4217 gnus-article-save-directory)))
4222 default
4226 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4227 If variable `gnus-use-long-file-name' is non-nil, it is
4228 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4232 newsgroup
4235 default-directory))
4236 gnus-article-save-directory)))
4239 "Generate file name from sender."
4245 gnus-article-save-directory)))
4248 "Verify X-PGP-Sig."
4249 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4254 items info headers)
4256 mml2015-use
4264 ;; Don't verify multiple headers.
4314 ;; Do highlighting.
4325 "Verify Cancel-Lock header."
4349 article-verify-x-pgp-sig
4350 article-verify-cancel-lock
4351 article-hide-boring-headers
4352 article-treat-overstrike
4353 article-treat-ansi-sequences
4354 article-fill-long-lines
4355 article-capitalize-sentences
4356 article-remove-cr
4357 article-remove-leading-whitespace
4358 article-display-x-face
4359 article-display-face
4360 article-de-quoted-unreadable
4361 article-de-base64-unreadable
4362 article-decode-HZ
4363 article-wash-html
4364 article-unsplit-urls
4365 article-hide-list-identifiers
4366 article-strip-banner
4367 article-babel
4368 article-hide-pem
4369 article-hide-signature
4370 article-strip-headers-in-body
4371 article-remove-trailing-blank-lines
4372 article-strip-leading-blank-lines
4373 article-strip-multiple-blank-lines
4374 article-strip-leading-space
4375 article-strip-trailing-space
4376 article-strip-blank-lines
4377 article-strip-all-blank-lines
4378 article-date-local
4379 article-date-english
4380 article-date-iso8601
4381 article-date-original
4382 article-treat-date
4383 article-date-ut
4384 article-decode-mime-words
4385 article-decode-charset
4386 article-decode-encoded-words
4387 article-date-user
4388 article-date-lapsed
4389 article-date-combined-lapsed
4390 article-emphasize
4391 article-treat-dumbquotes
4392 article-treat-non-ascii
4393 article-normalize-headers
4394 ;;(article-show-all . gnus-article-show-all-headers)
4395 )))
4396 \f
4397 ;;;
4398 ;;; Gnus article mode
4399 ;;;
4406 " " gnus-article-goto-next-page
4409 [delete] gnus-article-goto-prev-page
4410 "\C-c^" gnus-article-refer-article
4411 "h" gnus-article-show-summary
4412 "s" gnus-article-show-summary
4413 "\C-c\C-m" gnus-article-mail
4414 "?" gnus-article-describe-briefly
4415 "<" beginning-of-buffer
4416 ">" end-of-buffer
4417 "\C-c\C-i" gnus-info-find-node
4418 "\C-c\C-b" gnus-bug
4419 "R" gnus-article-reply-with-original
4420 "F" gnus-article-followup-with-original
4421 "\C-hk" gnus-article-describe-key
4422 "\C-hc" gnus-article-describe-key-briefly
4423 "\C-hb" gnus-article-describe-bindings
4425 "e" gnus-article-read-summary-keys
4426 "\C-d" gnus-article-read-summary-keys
4427 "\M-*" gnus-article-read-summary-keys
4428 "\M-#" gnus-article-read-summary-keys
4429 "\M-^" gnus-article-read-summary-keys
4430 "\M-g" gnus-article-read-summary-keys)
4432 (substitute-key-definition
4433 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4435 (defvar gnus-article-send-map)
4437 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4438 "W" gnus-article-wide-reply-with-original)
4439 (if (featurep 'xemacs)
4440 (set-keymap-default-binding gnus-article-send-map
4441 'gnus-article-read-summary-send-keys)
4442 (define-key gnus-article-send-map [t] 'gnus-article-read-summary-send-keys))
4444 (defun gnus-article-make-menu-bar ()
4445 (unless (boundp 'gnus-article-commands-menu)
4446 (gnus-summary-make-menu-bar))
4447 (unless (boundp 'gnus-article-article-menu)
4448 (easy-menu-define
4449 gnus-article-article-menu gnus-article-mode-map ""
4450 '("Article"
4451 ["Scroll forwards" gnus-article-goto-next-page t]
4452 ["Scroll backwards" gnus-article-goto-prev-page t]
4453 ["Show summary" gnus-article-show-summary t]
4454 ["Fetch Message-ID at point" gnus-article-refer-article t]
4455 ["Mail to address at point" gnus-article-mail t]
4456 ["Send a bug report" gnus-bug t]))
4458 (easy-menu-define
4459 gnus-article-treatment-menu gnus-article-mode-map ""
4460 ;; Fixme: this should use :active (and maybe :visible).
4461 '("Treatment"
4462 ["Hide headers" gnus-article-hide-headers t]
4463 ["Hide signature" gnus-article-hide-signature t]
4464 ["Hide citation" gnus-article-hide-citation t]
4465 ["Treat overstrike" gnus-article-treat-overstrike t]
4466 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4467 ["Remove carriage return" gnus-article-remove-cr t]
4468 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4469 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4470 ["Remove base64" gnus-article-de-base64-unreadable t]
4471 ["Treat html" gnus-article-wash-html t]
4472 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4473 ["Decode HZ" gnus-article-decode-HZ t]))
4475 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4477 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4479 (gnus-run-hooks 'gnus-article-menu-hook)))
4481 (defvar bookmark-make-record-function)
4482 (defvar shr-put-image-function)
4484 (define-derived-mode gnus-article-mode fundamental-mode "Article"
4485 "Major mode for displaying an article.
4487 All normal editing commands are switched off.
4489 The following commands are available in addition to all summary mode
4490 commands:
4499 (gnus-simplify-mode-line)
4500 (make-local-variable 'minor-mode-alist)
4501 (when (gnus-visual-p 'article-menu 'menu)
4502 (gnus-article-make-menu-bar)
4503 (when gnus-summary-tool-bar-map
4504 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4505 (gnus-update-format-specifications nil 'article-mode)
4506 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4507 (set (make-local-variable 'gnus-page-broken) nil)
4508 (make-local-variable 'gnus-article-current-summary)
4509 (make-local-variable 'gnus-article-mime-handles)
4510 (make-local-variable 'gnus-article-decoded-p)
4511 (make-local-variable 'gnus-article-mime-handle-alist)
4512 (make-local-variable 'gnus-article-wash-types)
4513 (make-local-variable 'gnus-article-image-alist)
4514 (make-local-variable 'gnus-article-charset)
4515 (make-local-variable 'gnus-article-ignored-charsets)
4516 (set (make-local-variable 'bookmark-make-record-function)
4517 'gnus-summary-bookmark-make-record)
4518 ;; Prevent Emacs 22 from displaying non-break space with `nobreak-space'
4519 ;; face.
4520 (set (make-local-variable 'nobreak-char-display) nil)
4521 ;; Enable `gnus-article-remove-images' to delete images shr.el renders.
4522 (set (make-local-variable 'shr-put-image-function) 'gnus-shr-put-image)
4523 (setq cursor-in-non-selected-windows nil)
4524 (gnus-set-default-directory)
4525 (buffer-disable-undo)
4526 (setq buffer-read-only t
4527 show-trailing-whitespace nil)
4528 (mm-enable-multibyte))
4530 (defun gnus-article-setup-buffer ()
4531 "Initialize the article buffer."
4532 (let* ((name (if gnus-single-article-buffer "*Article*"
4533 (concat "*Article "
4534 (gnus-group-decoded-name gnus-newsgroup-name)
4535 "*")))
4536 (original
4538 (concat " *Original Article"
4539 (substring name (match-end 0))))))
4540 (setq gnus-article-buffer name)
4541 (setq gnus-original-article-buffer original)
4542 (setq gnus-article-mime-handle-alist nil)
4543 (with-current-buffer gnus-summary-buffer
4544 ;; This might be a variable local to the summary buffer.
4545 (unless gnus-single-article-buffer
4546 (setq gnus-article-buffer name)
4547 (setq gnus-original-article-buffer original)
4548 (gnus-set-global-variables)))
4549 (gnus-article-setup-highlight-words)
4550 ;; Init original article buffer.
4551 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4552 (mm-enable-multibyte)
4553 (setq major-mode 'gnus-original-article-mode)
4554 (make-local-variable 'gnus-original-article))
4555 (if (and (get-buffer name)
4556 (with-current-buffer name
4557 (if gnus-article-edit-mode
4558 (if (y-or-n-p "Article mode edit in progress; discard? ")
4559 (progn
4560 (set-buffer-modified-p nil)
4561 (gnus-kill-buffer name)
4562 (message "")
4563 nil)
4564 (error "Action aborted"))
4565 t)))
4566 (let ((summary gnus-summary-buffer))
4567 (with-current-buffer name
4568 (set (make-local-variable 'gnus-article-edit-mode) nil)
4569 (gnus-article-stop-animations)
4570 (when gnus-article-mime-handles
4571 (mm-destroy-parts gnus-article-mime-handles)
4572 (setq gnus-article-mime-handles nil))
4573 ;; Set it to nil in article-buffer!
4574 (setq gnus-article-mime-handle-alist nil)
4575 (buffer-disable-undo)
4576 (setq buffer-read-only t)
4577 (unless (derived-mode-p 'gnus-article-mode)
4578 (gnus-article-mode))
4579 (set (make-local-variable 'gnus-summary-buffer) summary)
4580 (setq truncate-lines gnus-article-truncate-lines)
4581 (current-buffer)))
4582 (let ((summary gnus-summary-buffer))
4583 (with-current-buffer (gnus-get-buffer-create name)
4584 (gnus-article-mode)
4585 (setq truncate-lines gnus-article-truncate-lines)
4586 (set (make-local-variable 'gnus-summary-buffer) summary)
4587 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4588 (when article-lapsed-timer
4589 (gnus-stop-date-timer))
4590 (when gnus-article-update-date-headers
4591 (gnus-start-date-timer gnus-article-update-date-headers))
4592 (current-buffer))))))
4594 (defun gnus-article-stop-animations ()
4595 (dolist (timer (and (boundp 'timer-list)
4596 timer-list))
4597 (when (eq (gnus-timer--function timer) 'image-animate-timeout)
4598 (cancel-timer timer))))
4600 (defun gnus-stop-downloads ()
4601 (when (boundp 'url-queue)
4602 (set (intern "url-queue" obarray) nil)))
4604 ;; Set article window start at LINE, where LINE is the number of lines
4605 ;; from the head of the article.
4606 (defun gnus-article-set-window-start (&optional line)
4607 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4608 (when article-window
4609 (set-window-start
4610 article-window
4611 (with-current-buffer gnus-article-buffer
4612 (goto-char (point-min))
4613 (if (not line)
4614 (point-min)
4615 (gnus-message 6 "Moved to bookmark")
4617 (forward-line line)
4618 (point)))))))
4620 (defvar gnus-tmp-internal-hook)
4622 (defun gnus-article-prepare (article &optional all-headers _header)
4623 "Prepare ARTICLE in article mode buffer.
4624 ARTICLE should either be an article number or a Message-ID.
4625 If ARTICLE is an id, HEADER should be the article headers.
4626 If ALL-HEADERS is non-nil, no headers are hidden."
4627 (save-excursion ;FIXME: Shouldn't that be save-current-buffer?
4628 ;; Make sure we start in a summary buffer.
4629 (unless (derived-mode-p 'gnus-summary-mode)
4630 (set-buffer gnus-summary-buffer))
4631 (setq gnus-summary-buffer (current-buffer))
4632 (let* ((summary-buffer (current-buffer))
4633 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4634 (group gnus-newsgroup-name)
4635 result)
4636 (save-excursion
4637 (gnus-article-setup-buffer)
4638 (set-buffer gnus-article-buffer)
4639 ;; Deactivate active regions.
4640 (when (and (boundp 'transient-mark-mode)
4641 transient-mark-mode)
4642 (setq mark-active nil))
4643 (if (not (setq result (let ((inhibit-read-only t))
4644 (gnus-request-article-this-buffer
4645 article group))))
4646 ;; There is no such article.
4647 (save-excursion
4648 (when (and (numberp article)
4649 (not (memq article gnus-newsgroup-sparse)))
4650 (setq gnus-article-current
4651 (cons gnus-newsgroup-name article))
4652 (set-buffer gnus-summary-buffer)
4653 (setq gnus-current-article article)
4654 (if (and (memq article gnus-newsgroup-undownloaded)
4655 (not (gnus-online (gnus-find-method-for-group
4656 gnus-newsgroup-name))))
4657 (progn
4658 (gnus-summary-set-agent-mark article)
4659 (message "Message marked for downloading"))
4660 (gnus-summary-mark-article article gnus-canceled-mark)
4661 (unless (memq article gnus-newsgroup-sparse)
4662 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4663 (if (or (eq result 'pseudo)
4664 (eq result 'nneething))
4665 (progn
4666 (with-current-buffer summary-buffer
4667 (push article gnus-newsgroup-history)
4668 (setq gnus-last-article gnus-current-article
4669 gnus-current-article 0
4670 gnus-current-headers nil
4671 gnus-article-current nil)
4672 (if (eq result 'nneething)
4673 (gnus-configure-windows 'summary)
4674 (gnus-configure-windows 'article))
4675 (gnus-set-global-variables))
4676 (let ((gnus-article-mime-handle-alist-1
4677 gnus-article-mime-handle-alist))
4678 (gnus-set-mode-line 'article)))
4679 ;; The result from the `request' was an actual article -
4680 ;; or at least some text that is now displayed in the
4681 ;; article buffer.
4682 (when (and (numberp article)
4683 (not (eq article gnus-current-article)))
4684 ;; Seems like a new article has been selected.
4685 ;; `gnus-current-article' must be an article number.
4686 (with-current-buffer summary-buffer
4687 (push article gnus-newsgroup-history)
4688 (setq gnus-last-article gnus-current-article
4689 gnus-current-article article
4690 gnus-current-headers
4691 (gnus-summary-article-header gnus-current-article)
4692 gnus-article-current
4693 (cons gnus-newsgroup-name gnus-current-article))
4694 (unless (vectorp gnus-current-headers)
4695 (setq gnus-current-headers nil))
4696 (gnus-summary-goto-subject gnus-current-article)
4697 (when (gnus-summary-show-thread)
4698 ;; If the summary buffer really was folded, the
4699 ;; previous goto may not actually have gone to
4700 ;; the right article, but the thread root instead.
4701 ;; So we go again.
4702 (gnus-summary-goto-subject gnus-current-article))
4703 (gnus-run-hooks 'gnus-mark-article-hook)
4704 (gnus-set-mode-line 'summary)
4705 (when (gnus-visual-p 'article-highlight 'highlight)
4706 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4707 ;; Set the global newsgroup variables here.
4708 (gnus-set-global-variables)
4709 (setq gnus-have-all-headers
4710 (or all-headers gnus-show-all-headers))))
4711 (save-excursion
4712 (gnus-configure-windows 'article))
4713 (when (or (numberp article)
4714 (stringp article))
4715 (gnus-article-prepare-display)
4716 ;; Do page break.
4717 (goto-char (point-min))
4718 (when gnus-break-pages
4719 (gnus-narrow-to-page)))
4720 (let ((gnus-article-mime-handle-alist-1
4721 gnus-article-mime-handle-alist))
4722 (gnus-set-mode-line 'article))
4723 (article-goto-body)
4724 (unless (bobp)
4725 (forward-line -1))
4726 (set-window-point (get-buffer-window (current-buffer)) (point))
4727 (gnus-configure-windows 'article)
4728 (gnus-run-hooks 'gnus-article-prepare-hook)
4729 t))))))
4731 (defvar gnus-mime-display-attachment-buttons-in-header)
4733 ;;;###autoload
4734 (defun gnus-article-prepare-display ()
4735 "Make the current buffer look like a nice article."
4736 ;; Hooks for getting information from the article.
4737 ;; This hook must be called before being narrowed.
4738 (let ((gnus-article-buffer (current-buffer))
4739 buffer-read-only
4740 (inhibit-read-only t))
4741 (unless (derived-mode-p 'gnus-article-mode)
4742 (gnus-article-mode))
4743 (setq buffer-read-only nil
4744 gnus-article-wash-types nil
4745 gnus-article-image-alist nil)
4746 (gnus-run-hooks 'gnus-tmp-internal-hook)
4747 (when gnus-display-mime-function
4748 (funcall gnus-display-mime-function))
4749 ;; Add attachment buttons to the header.
4750 (when gnus-mime-display-attachment-buttons-in-header
4751 (gnus-mime-buttonize-attachments-in-header))))
4753 ;;;
4754 ;;; Gnus Sticky Article Mode
4755 ;;;
4757 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4758 "Mode for sticky articles."
4759 ;; Release bindings that won't work.
4760 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4761 gnus-sticky-article-mode-map)
4762 (substitute-key-definition 'gnus-article-refer-article 'undefined
4763 gnus-sticky-article-mode-map)
4764 (dolist (k '("e" "h" "s" "F" "R"))
4765 (define-key gnus-sticky-article-mode-map k nil))
4766 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4767 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4768 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4769 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4771 (defun gnus-sticky-article (arg)
4772 "Make the current article sticky.
4773 If a prefix ARG is given, ask for a name for this sticky article buffer."
4774 (interactive "P")
4775 (gnus-summary-show-thread)
4776 (gnus-summary-select-article nil nil 'pseudo)
4777 (let (new-art-buf-name)
4778 (gnus-eval-in-buffer-window gnus-article-buffer
4779 (setq new-art-buf-name
4780 (concat
4781 "*Sticky Article: "
4782 (if arg
4783 (read-from-minibuffer "Sticky article buffer name: ")
4784 (gnus-with-article-headers
4785 (gnus-article-goto-header "subject")
4786 (setq new-art-buf-name
4787 (buffer-substring-no-properties
4788 (line-beginning-position) (line-end-position)))
4789 (goto-char (point-min))
4790 (gnus-article-goto-header "from")
4791 (setq new-art-buf-name
4792 (concat
4793 new-art-buf-name ", "
4794 (buffer-substring-no-properties
4795 (line-beginning-position) (line-end-position))))
4796 (goto-char (point-min))
4797 (gnus-article-goto-header "date")
4798 (setq new-art-buf-name
4799 (concat
4800 new-art-buf-name ", "
4801 (buffer-substring-no-properties
4802 (line-beginning-position) (line-end-position))))))
4803 "*"))
4804 (if (and (gnus-buffer-live-p new-art-buf-name)
4805 (with-current-buffer new-art-buf-name
4806 (derived-mode-p 'gnus-sticky-article-mode)))
4807 (switch-to-buffer new-art-buf-name)
4808 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4809 (gnus-sticky-article-mode))
4810 (setq gnus-article-buffer new-art-buf-name))
4811 (gnus-summary-recenter)
4812 (gnus-summary-position-point))
4814 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4815 "Kill the given sticky article BUFFER.
4816 If none is given, assume the current buffer and kill it if it has
4817 `gnus-sticky-article-mode'."
4818 (interactive)
4819 (unless buffer
4820 (setq buffer (current-buffer)))
4821 (with-current-buffer buffer
4822 (when (derived-mode-p 'gnus-sticky-article-mode)
4823 (gnus-kill-buffer buffer))))
4825 (defun gnus-kill-sticky-article-buffers (arg)
4826 "Kill all sticky article buffers.
4827 If a prefix ARG is given, ask for confirmation."
4828 (interactive "P")
4829 (dolist (buf (gnus-buffers))
4830 (with-current-buffer buf
4831 (when (derived-mode-p 'gnus-sticky-article-mode)
4832 (if (not arg)
4833 (gnus-kill-buffer buf)
4834 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4835 (gnus-kill-buffer buf)))))))
4837 ;;;
4838 ;;; Gnus MIME viewing functions
4839 ;;;
4842 "Format of the MIME buttons.
4844 Valid specifiers include:
4845 %t The MIME type
4846 %T MIME type, along with additional info
4847 %n The `name' parameter
4848 %d The description, if any
4849 %l The length of the encoded part
4850 %p The part identifier number
4851 %e Dots if the part isn't displayed
4853 General format specifiers can also be used. See Info node
4854 `(gnus)Formatting Variables'.")
4856 (defvar gnus-tmp-type)
4857 (defvar gnus-tmp-type-long)
4858 (defvar gnus-tmp-name)
4859 (defvar gnus-tmp-description)
4860 (defvar gnus-tmp-id)
4861 (defvar gnus-tmp-length)
4862 (defvar gnus-tmp-dots)
4863 (defvar gnus-tmp-info)
4864 (defvar gnus-tmp-pressed-details)
4866 (defvar gnus-mime-button-line-format-alist
4867 '((?t gnus-tmp-type ?s)
4868 (?T gnus-tmp-type-long ?s)
4869 (?n gnus-tmp-name ?s)
4870 (?d gnus-tmp-description ?s)
4871 (?p gnus-tmp-id ?s)
4872 (?l gnus-tmp-length ?d)
4873 (?e gnus-tmp-dots ?s)))
4875 (defvar gnus-mime-button-commands
4877 (gnus-mime-view-part "v" "View Interactively...")
4878 (gnus-mime-view-part-as-type "t" "View As Type...")
4879 (gnus-mime-view-part-as-charset "C" "View As charset...")
4880 (gnus-mime-save-part "o" "Save...")
4881 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4882 (gnus-mime-replace-part "r" "Replace part")
4883 (gnus-mime-delete-part "d" "Delete part")
4884 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4885 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4886 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4887 (gnus-mime-view-part-externally "e" "View Externally")
4888 (gnus-mime-print-part "p" "Print")
4889 (gnus-mime-pipe-part "|" "Pipe To Command...")
4890 (gnus-mime-action-on-part "." "Take action on the part...")))
4892 (defun gnus-article-mime-part-status ()
4893 (if gnus-article-mime-handle-alist-1
4894 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4895 " (1 part)"
4896 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4897 ""))
4899 (defvar gnus-mime-button-map
4900 (let ((map (make-sparse-keymap)))
4901 (define-key map gnus-mouse-2 'gnus-article-push-button)
4902 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4903 (dolist (c gnus-mime-button-commands)
4904 (define-key map (cadr c) (car c)))
4905 map))
4907 (easy-menu-define
4908 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4909 `("MIME Part"
4910 ,@(mapcar (lambda (c)
4911 (vector (caddr c) (car c) :active t))
4912 gnus-mime-button-commands)))
4914 (defvar gnus-url-button-commands
4915 '((gnus-article-copy-string "u" "Copy URL to kill ring")))
4917 (defvar gnus-url-button-map
4918 (let ((map (make-sparse-keymap)))
4919 (dolist (c gnus-url-button-commands)
4920 (define-key map (cadr c) (car c)))
4921 map))
4923 (easy-menu-define
4924 gnus-url-button-menu gnus-url-button-map "URL button menu."
4925 `("Url Button"
4926 ,@(mapcar (lambda (c)
4927 (vector (caddr c) (car c) :active t))
4928 gnus-url-button-commands)))
4930 (defmacro gnus-bind-safe-url-regexp (&rest body)
4931 "Bind `mm-w3m-safe-url-regexp' according to `gnus-safe-html-newsgroups'."
4932 `(let ((mm-w3m-safe-url-regexp
4933 (let ((group (if (and (derived-mode-p 'gnus-article-mode)
4934 (gnus-buffer-live-p
4935 gnus-article-current-summary))
4936 (with-current-buffer gnus-article-current-summary
4937 gnus-newsgroup-name)
4938 gnus-newsgroup-name)))
4939 (if (cond ((not group)
4940 ;; Maybe we're in a mml-preview buffer
4941 ;; and no group is selected.
4942 t)
4943 ((stringp gnus-safe-html-newsgroups)
4944 (string-match gnus-safe-html-newsgroups group))
4945 ((consp gnus-safe-html-newsgroups)
4946 (member group gnus-safe-html-newsgroups)))
4947 nil
4948 mm-w3m-safe-url-regexp))))
4949 ,@body))
4951 (defun gnus-mime-button-menu (event prefix)
4952 "Construct a context-sensitive menu of MIME commands."
4954 (save-window-excursion
4955 (let ((pos (event-start event)))
4956 (select-window (posn-window pos))
4957 (goto-char (posn-point pos))
4958 (gnus-article-check-buffer)
4959 (popup-menu gnus-mime-button-menu nil prefix))))
4961 (defun gnus-mime-view-all-parts (&optional handles)
4962 "View all the MIME parts."
4963 (interactive)
4964 (with-current-buffer gnus-article-buffer
4965 (let ((handles (or handles gnus-article-mime-handles))
4966 (mail-parse-charset gnus-newsgroup-charset)
4967 (mail-parse-ignored-charsets
4968 (with-current-buffer gnus-summary-buffer
4969 gnus-newsgroup-ignored-charsets)))
4970 (when handles
4971 (mm-remove-parts handles)
4972 (goto-char (point-min))
4974 (let ((inhibit-read-only t))
4975 (delete-region (point) (point-max))
4976 (gnus-bind-safe-url-regexp (mm-display-parts handles)))))))
4978 (defun gnus-article-jump-to-part (n)
4979 "Jump to MIME part N."
4980 (interactive "P")
4981 (let ((parts (with-current-buffer gnus-article-buffer
4982 (length gnus-article-mime-handle-alist))))
4983 (when (zerop parts)
4984 (error "No such part"))
4985 (pop-to-buffer gnus-article-buffer)
4986 (or n
4987 (setq n (if (= parts 1)
4988 1
4989 (read-number (format "Jump to part (1..%s): " parts)))))
4990 (unless (and (integerp n) (<= n parts) (>= n 1))
4991 (setq n
4992 (progn
4993 (gnus-message 7 "Invalid part `%s', using %s instead."
4994 n parts)
4995 parts)))
4996 (gnus-message 9 "Jumping to part %s." n)
4997 (cond ((>= gnus-auto-select-part 1)
4998 (while (and (<= n parts)
4999 (not (gnus-article-goto-part n)))
5000 (setq n (1+ n))))
5001 ((< gnus-auto-select-part 0)
5002 (while (and (>= n 1)
5003 (not (gnus-article-goto-part n)))
5004 (setq n (1- n))))
5005 (t
5006 (gnus-article-goto-part n)))))
5008 (defvar gnus-mime-buttonized-part-id nil
5009 "ID of a mime part that should be buttonized.
5010 `gnus-mime-save-part-and-strip' and `gnus-mime-delete-part' bind it.")
5012 (eval-when-compile
5013 (defsubst gnus-article-edit-part (handles &optional current-id)
5014 "Edit an article in order to delete a mime part.
5015 This function is exclusively used by `gnus-mime-save-part-and-strip'
5016 and `gnus-mime-delete-part', and not provided at run-time normally."
5017 (gnus-article-edit-article
5018 `(lambda ()
5019 (buffer-disable-undo)
5020 (let ((mail-parse-charset (or gnus-article-charset
5021 ',gnus-newsgroup-charset))
5022 (mail-parse-ignored-charsets
5023 (or gnus-article-ignored-charsets
5024 ',gnus-newsgroup-ignored-charsets))
5025 (mbl mml-buffer-list))
5026 (setq mml-buffer-list nil)
5027 ;; A new text must be inserted before deleting existing ones
5028 ;; at the end so as not to move existing markers of which
5029 ;; the insertion type is t.
5030 (delete-region
5031 (point-min)
5032 (prog1
5033 (goto-char (point-max))
5034 (insert-buffer-substring gnus-original-article-buffer)))
5035 (mime-to-mml ',handles)
5036 (setq gnus-article-mime-handles nil)
5037 (let ((mbl1 mml-buffer-list))
5038 (setq mml-buffer-list mbl)
5039 (set (make-local-variable 'mml-buffer-list) mbl1))
5040 (gnus-make-local-hook 'kill-buffer-hook)
5041 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
5042 `(lambda (no-highlight)
5043 (let ((mail-parse-charset (or gnus-article-charset
5044 ',gnus-newsgroup-charset))
5045 (message-options message-options)
5046 (message-options-set-recipient)
5047 (mail-parse-ignored-charsets
5048 (or gnus-article-ignored-charsets
5049 ',gnus-newsgroup-ignored-charsets)))
5050 (mml-to-mime)
5051 (mml-destroy-buffers)
5052 (remove-hook 'kill-buffer-hook
5053 'mml-destroy-buffers t)
5054 (kill-local-variable 'mml-buffer-list))
5055 (gnus-summary-edit-article-done
5056 ,(or (mail-header-references gnus-current-headers) "")
5057 ,(gnus-group-read-only-p)
5058 ,gnus-summary-buffer no-highlight))
5059 t)
5060 ;; Force buttonizing this part.
5061 (let ((gnus-mime-buttonized-part-id current-id))
5062 (gnus-article-edit-done))
5063 (gnus-configure-windows 'article)
5064 (sit-for 0)
5065 (when (and current-id (integerp gnus-auto-select-part))
5066 (gnus-article-jump-to-part
5067 (min (max (+ current-id gnus-auto-select-part) 1)
5068 (with-current-buffer gnus-article-buffer
5069 (length gnus-article-mime-handle-alist)))))))
5071 (defun gnus-mime-replace-part (file)
5072 "Replace MIME part under point with an external body."
5073 ;; Useful if file has already been saved to disk
5074 (interactive
5075 (list
5076 (read-file-name "Replace MIME part with file: "
5077 (or mm-default-directory default-directory)
5078 nil nil)))
5079 (gnus-mime-save-part-and-strip file))
5081 (defun gnus-mime-save-part-and-strip (&optional file)
5082 "Save the MIME part under point then replace it with an external body.
5083 If FILE is given, use it for the external part."
5084 (interactive)
5085 (gnus-article-check-buffer)
5086 (when (gnus-group-read-only-p)
5087 (error "The current group does not support deleting of parts"))
5088 (when (mm-complicated-handles gnus-article-mime-handles)
5089 (error "\
5090 The current article has a complicated MIME structure, giving up..."))
5091 (let* ((data (get-text-property (point) 'gnus-data))
5092 (id (get-text-property (point) 'gnus-part))
5093 (handles gnus-article-mime-handles))
5094 (unless file
5095 (setq file
5096 (and data (mm-save-part data "Delete MIME part and save to: "))))
5097 (when file
5098 (with-current-buffer (mm-handle-buffer data)
5099 (erase-buffer)
5100 (insert "Content-Type: " (mm-handle-media-type data))
5101 (mml-insert-parameter-string (cdr (mm-handle-type data))
5102 '(charset))
5103 ;; Add a filename for the sake of saving the part again.
5104 (mml-insert-parameter
5105 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
5110 (setcdr data
5111 (cdr (mm-make-handle nil
5112 `("message/external-body"
5113 (access-type . "LOCAL-FILE")
5114 (name . ,file)))))
5115 ;; (set-buffer gnus-summary-buffer)
5116 (gnus-article-edit-part handles id))))
5118 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
5119 ;; parts...>') but with stripping would be nice.
5121 (defun gnus-mime-delete-part ()
5122 "Delete the MIME part under point.
5123 Replace it with some information about the removed part."
5124 (interactive)
5125 (gnus-article-check-buffer)
5126 (when (gnus-group-read-only-p)
5127 (error "The current group does not support deleting of parts"))
5128 (when (mm-complicated-handles gnus-article-mime-handles)
5129 (error "\
5130 The current article has a complicated MIME structure, giving up..."))
5131 (when (or gnus-expert-user
5132 (gnus-yes-or-no-p "\
5133 Deleting parts may malfunction or destroy the article; continue? "))
5134 (let* ((data (get-text-property (point) 'gnus-data))
5135 (id (get-text-property (point) 'gnus-part))
5136 (handles gnus-article-mime-handles)
5137 (description
5138 (let ((desc (mm-handle-description data)))
5139 (when desc
5140 (mail-decode-encoded-word-string desc))))
5141 (filename (or (mm-handle-filename data) "(none)"))
5142 (type (mm-handle-media-type data)))
5143 (unless data
5144 (error "No MIME part under point"))
5145 (with-current-buffer (mm-handle-buffer data)
5146 (let ((bsize (buffer-size)))
5147 (erase-buffer)
5148 (insert
5149 (concat
5156 bsize (if (= bsize 1)
5157 ""
5158 "s"))
5159 (when description
5162 (setcdr data
5163 (cdr (mm-make-handle
5164 nil `("text/plain" (charset . gnus-decoded)) nil nil
5165 (list "attachment")
5166 (format "Deleted attachment (%s bytes)" bsize))))))
5167 ;; (set-buffer gnus-summary-buffer)
5168 (gnus-article-edit-part handles id))))
5170 (defun gnus-mime-save-part ()
5171 "Save the MIME part under point."
5172 (interactive)
5173 (gnus-article-check-buffer)
5174 (let ((data (get-text-property (point) 'gnus-data)))
5175 (when data
5176 (mm-save-part data))))
5178 (defun gnus-mime-pipe-part (&optional cmd)
5179 "Pipe the MIME part under point to a process.
5180 Use CMD as the process."
5181 (interactive)
5182 (gnus-article-check-buffer)
5183 (let ((data (get-text-property (point) 'gnus-data)))
5184 (when data
5185 (mm-pipe-part data cmd))))
5187 (defun gnus-mime-view-part ()
5188 "Interactively choose a viewing method for the MIME part under point."
5189 (interactive)
5190 (gnus-article-check-buffer)
5191 (let ((data (get-text-property (point) 'gnus-data)))
5192 (when data
5193 (setq gnus-article-mime-handles
5194 (mm-merge-handles
5195 gnus-article-mime-handles (setq data (copy-sequence data))))
5196 (mm-interactively-view-part data))))
5198 (defun gnus-mime-view-part-as-type-internal ()
5199 (gnus-article-check-buffer)
5200 (let* ((handle (get-text-property (point) 'gnus-data))
5201 (name (or
5202 ;; Content-Type: foo/bar; name=...
5203 (mail-content-type-get (mm-handle-type handle) 'name)
5204 ;; Content-Disposition: attachment; filename=...
5205 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
5206 (def-type (and name (mm-default-file-encoding name))))
5207 (or (and def-type (cons def-type 0))
5208 (and handle
5209 (equal (mm-handle-media-supertype handle) "text")
5210 '("text/plain" . 0))
5211 '("application/octet-stream" . 0))))
5213 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
5214 "Choose a MIME media type, and view the part as such.
5215 If non-nil, PRED is a predicate to use during completion to limit the
5216 available media-types."
5217 (interactive)
5218 (unless mime-type
5219 (setq mime-type
5220 (let ((default (gnus-mime-view-part-as-type-internal)))
5221 (gnus-completing-read
5222 "View as MIME type"
5223 (if pred
5224 (gnus-remove-if-not pred (mailcap-mime-types))
5225 (mailcap-mime-types))
5226 nil nil nil
5227 (car default)))))
5228 (gnus-article-check-buffer)
5229 (let ((handle (get-text-property (point) 'gnus-data)))
5230 (when handle
5231 (when (equal (mm-handle-media-type handle) "message/external-body")
5232 (unless (mm-handle-cache handle)
5233 (mm-extern-cache-contents handle))
5234 (setq handle (mm-handle-cache handle)))
5235 (setq handle
5236 (mm-make-handle (mm-handle-buffer handle)
5237 (cons mime-type (cdr (mm-handle-type handle)))
5238 (mm-handle-encoding handle)
5239 (mm-handle-undisplayer handle)
5240 (mm-handle-disposition handle)
5241 (mm-handle-description handle)
5242 nil
5243 (mm-handle-id handle)))
5244 (setq gnus-article-mime-handles
5245 (mm-merge-handles gnus-article-mime-handles handle))
5246 (when (mm-handle-displayed-p handle)
5247 (mm-remove-part handle))
5248 (gnus-mm-display-part handle))))
5250 (defun gnus-mime-copy-part (&optional handle arg)
5251 "Put the MIME part under point into a new buffer.
5252 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
5253 are decompressed."
5254 (interactive (list nil current-prefix-arg))
5255 (gnus-article-check-buffer)
5256 (unless handle
5257 (setq handle (get-text-property (point) 'gnus-data)))
5258 (when handle
5259 (let ((filename (mm-handle-filename handle))
5260 contents dont-decode charset coding-system)
5261 (mm-with-unibyte-buffer
5262 (mm-insert-part handle)
5263 (setq contents (or (condition-case nil
5264 (mm-decompress-buffer filename nil 'sig)
5265 (error
5266 (setq dont-decode t)
5267 nil))
5268 (buffer-string))))
5269 (setq filename (cond (filename (file-name-nondirectory filename))
5270 (dont-decode "*raw data*")
5271 (t "*decoded*")))
5272 (cond
5273 (dont-decode)
5274 ((not arg)
5275 (unless (setq charset (mail-content-type-get
5276 (mm-handle-type handle) 'charset))
5277 (unless (setq coding-system (mm-with-unibyte-buffer
5278 (insert contents)
5279 (mm-find-buffer-file-coding-system)))
5280 (setq charset gnus-newsgroup-charset))))
5281 ((numberp arg)
5282 (setq charset (or (cdr (assq arg
5283 gnus-summary-show-article-charset-alist))
5284 (mm-read-coding-system "Charset: ")))))
5285 (switch-to-buffer (generate-new-buffer filename))
5286 (if (or coding-system
5287 (and charset
5288 (setq coding-system (mm-charset-to-coding-system
5289 charset nil t))
5290 (not (eq coding-system 'ascii))))
5291 (progn
5292 (mm-enable-multibyte)
5293 (insert (mm-decode-coding-string contents coding-system))
5294 (setq buffer-file-coding-system
5295 (if (boundp 'last-coding-system-used)
5296 (symbol-value 'last-coding-system-used)
5297 coding-system)))
5298 (mm-disable-multibyte)
5299 (insert contents)
5300 (setq buffer-file-coding-system mm-binary-coding-system))
5301 ;; We do it this way to make `normal-mode' set the appropriate mode.
5302 (unwind-protect
5303 (progn
5304 (setq buffer-file-name (expand-file-name filename))
5305 (normal-mode))
5306 (setq buffer-file-name nil))
5307 (goto-char (point-min)))))
5309 (defun gnus-mime-print-part (&optional handle filename)
5310 "Print the MIME part under point."
5311 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5312 (gnus-article-check-buffer)
5313 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5314 (contents (and handle (mm-get-part handle)))
5315 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5316 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5317 (when contents
5318 (if printer
5319 (unwind-protect
5320 (progn
5321 (mm-save-part-to-file handle file)
5322 (call-process shell-file-name nil
5323 (generate-new-buffer " *mm*")
5324 nil
5325 shell-command-switch
5326 (mm-mailcap-command
5327 printer file (mm-handle-type handle))))
5328 (delete-file file))
5329 (with-temp-buffer
5330 (insert contents)
5331 (gnus-print-buffer))
5332 (ps-despool filename)))))
5334 (defun gnus-mime-inline-part (&optional handle arg)
5335 "Insert the MIME part under point into the current buffer.
5336 Compressed files like .gz and .bz2 are decompressed."
5337 (interactive (list nil current-prefix-arg))
5338 (gnus-article-check-buffer)
5339 (let* ((inhibit-read-only t)
5340 (b (point))
5341 (btn ;; position where the MIME button exists
5342 (if handle
5343 (if (eq handle (get-text-property b 'gnus-data))
5344 b
5345 (article-goto-body)
5346 (or (text-property-any (point) (point-max) 'gnus-data handle)
5347 (text-property-any (point-min) (point) 'gnus-data handle)))
5348 (setq handle (get-text-property b 'gnus-data))
5349 b))
5350 start)
5351 (when handle
5352 (when (= b (prog1
5353 btn
5354 (setq start (next-single-property-change btn 'gnus-data
5355 nil (point-max))
5356 btn (previous-single-property-change start
5357 'gnus-data))))
5358 (setq b btn))
5359 (if (and (not arg) (mm-handle-undisplayer handle))
5360 (progn
5361 (setq b (copy-marker b)
5362 btn (copy-marker btn))
5363 (mm-remove-part handle))
5364 (cond
5365 ((not arg) nil)
5366 ((numberp arg)
5367 (if (mm-handle-undisplayer handle)
5368 (mm-remove-part handle)))
5369 ((mm-handle-undisplayer handle)
5370 (mm-remove-part handle)))
5371 (goto-char start)
5372 (unless (bolp)
5373 ;; This is a header button.
5374 (forward-line 1))
5375 (mm-display-inline handle))
5376 ;; Toggle the button appearance between `[button]...' and `[button]'.
5377 (when (markerp btn)
5378 (setq btn (prog1 (marker-position btn)
5379 (set-marker btn nil))))
5380 (goto-char btn)
5381 (let ((displayed-p (mm-handle-displayed-p handle)))
5382 (gnus-insert-mime-button handle (get-text-property btn 'gnus-part)
5383 (list displayed-p))
5384 (if (featurep 'emacs)
5385 (delete-region
5386 (point)
5387 (next-single-property-change (point) 'gnus-data nil (point-max)))
5388 (let* ((end (next-single-property-change (point) 'gnus-data))
5389 (annots (annotations-at (or end (point-max)))))
5390 (delete-region (point)
5391 (if end
5392 (if annots (1+ end) end)
5393 (point-max)))
5394 (dolist (annot annots)
5395 (set-extent-endpoints annot (point) (point)))))
5396 (setq start (point))
5398 (progn
5399 (goto-char start)
5400 (unless (or displayed-p (eolp))
5401 ;; Add extra newline.
5402 (insert (propertize (buffer-substring (1- start) start)
5403 'gnus-undeletable t))))
5404 ;; We're in the article header.
5405 (delete-char -1)
5406 (dolist (ovl (gnus-overlays-in btn (point)))
5407 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
5408 (gnus-overlay-put ovl 'face nil))
5409 (save-restriction
5410 (message-narrow-to-field)
5411 (let ((gnus-treatment-function-alist
5412 '((gnus-treat-highlight-headers
5413 gnus-article-highlight-headers))))
5414 (gnus-treat-article 'head)))))
5415 (when (markerp b)
5416 (setq b (prog1 (marker-position b)
5417 (set-marker b nil))))
5418 (goto-char b))))
5420 (defun gnus-mime-set-charset-parameters (handle charset)
5421 "Set CHARSET to parameters in HANDLE.
5422 CHARSET may either be a string or a symbol."
5423 (unless (stringp charset)
5424 (setq charset (symbol-name charset)))
5425 (if (stringp (car handle))
5426 (dolist (h (cdr handle))
5427 (gnus-mime-set-charset-parameters h charset))
5428 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5429 "message/external-body")
5430 (progn
5431 (unless (mm-handle-cache handle)
5432 (mm-extern-cache-contents handle))
5433 (mm-handle-cache handle))
5434 handle)))
5435 (param (assq 'charset (cdr type))))
5436 (if param
5437 (setcdr param charset)
5438 (setcdr type (cons (cons 'charset charset) (cdr type)))))))
5440 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5441 "Insert the MIME part under point into the current buffer using the
5442 specified charset."
5443 (interactive (list nil current-prefix-arg))
5444 (gnus-article-check-buffer)
5445 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5446 (fun (get-text-property (point) 'gnus-callback))
5447 (gnus-newsgroup-ignored-charsets 'gnus-all)
5448 charset form preferred parts)
5449 (when handle
5450 (when (prog1
5451 (and fun
5452 (setq charset
5453 (or (cdr (assq
5454 arg
5455 gnus-summary-show-article-charset-alist))
5456 (mm-read-coding-system "Charset: "))))
5457 (if (mm-handle-undisplayer handle)
5458 (mm-remove-part handle)))
5459 (gnus-mime-set-charset-parameters handle charset)
5460 (when (and (consp (setq form (cdr-safe fun)))
5461 (setq form (ignore-errors
5462 (assq 'gnus-mime-display-alternative form)))
5463 (setq preferred (caddr form))
5464 (progn
5465 (when (eq (car preferred) 'quote)
5466 (setq preferred (cadr preferred)))
5467 (not (equal preferred
5468 (get-text-property (point) 'gnus-data))))
5469 (setq parts (get-text-property (point) 'gnus-part))
5470 (setq parts (cdr (assq parts
5471 gnus-article-mime-handle-alist)))
5472 (equal (mm-handle-media-type parts) "multipart/alternative")
5473 (setq parts (reverse (cdr parts))))
5474 (setcar (cddr form)
5475 (list 'quote (or (cadr (member preferred parts))
5476 (car parts)))))
5477 (funcall fun handle)))))
5479 (defun gnus-mime-view-part-externally (&optional handle)
5480 "View the MIME part under point with an external viewer."
5481 (interactive)
5482 (gnus-article-check-buffer)
5483 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5484 (mm-inlined-types nil)
5485 (mail-parse-charset gnus-newsgroup-charset)
5486 (mail-parse-ignored-charsets
5487 (with-current-buffer gnus-summary-buffer
5488 gnus-newsgroup-ignored-charsets))
5489 (type (mm-handle-media-type handle))
5490 (method (mailcap-mime-info type))
5491 (mm-enable-external t))
5492 (if (not (stringp method))
5493 (gnus-mime-view-part-as-type
5494 nil (lambda (type) (stringp (mailcap-mime-info type))))
5495 (when handle
5496 (mm-display-part handle nil t)))))
5498 (defun gnus-mime-view-part-internally (&optional handle)
5499 "View the MIME part under point with an internal viewer.
5500 If no internal viewer is available, use an external viewer."
5501 (interactive)
5502 (gnus-article-check-buffer)
5503 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5504 (mm-inlined-types '(".*"))
5505 (mm-inline-large-images t)
5506 (mail-parse-charset gnus-newsgroup-charset)
5507 (mail-parse-ignored-charsets
5508 (with-current-buffer gnus-summary-buffer
5509 gnus-newsgroup-ignored-charsets))
5510 (inhibit-read-only t))
5511 (if (not (mm-inlinable-p handle))
5512 (gnus-mime-view-part-as-type
5513 nil (lambda (type) (mm-inlinable-p handle type)))
5514 (when handle
5515 (gnus-bind-safe-url-regexp
5516 (mm-display-part handle nil t))))))
5518 (defun gnus-mime-action-on-part (&optional action)
5519 "Do something with the MIME attachment at \(point\)."
5520 (interactive
5521 (list (gnus-completing-read "Action" (mapcar 'car gnus-mime-action-alist) t)))
5522 (gnus-article-check-buffer)
5523 (let ((action-pair (assoc action gnus-mime-action-alist)))
5524 (if action-pair
5525 (funcall (cdr action-pair)))))
5527 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5528 "Call FUNCTION on MIME part N.
5529 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as its only argument.
5530 If INTERACTIVE, call FUNCTION interactively."
5531 (let (window frame)
5532 ;; Check whether the article is displayed.
5533 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5534 (setq window (get-buffer-window gnus-article-buffer t))
5535 (frame-visible-p (setq frame (window-frame window))))
5536 (error "No article is displayed"))
5537 (with-current-buffer gnus-article-buffer
5538 ;; Check whether the article displays the right contents.
5539 (unless (with-current-buffer gnus-summary-buffer
5540 (eq gnus-current-article (gnus-summary-article-number)))
5541 (error "You should select the right article first"))
5542 (if n
5543 (setq n (prefix-numeric-value n))
5544 (let ((pt (point)))
5545 (setq n (or (get-text-property pt 'gnus-part)
5546 (and (not (bobp))
5547 (get-text-property (1- pt) 'gnus-part))
5548 (get-text-property (prog2
5549 (forward-line 1)
5550 (point)
5551 (goto-char pt))
5552 'gnus-part)
5553 (get-text-property
5554 (or (and (setq pt (previous-single-property-change
5555 pt 'gnus-part))
5556 (1- pt))
5557 (next-single-property-change (point) 'gnus-part)
5558 (point))
5559 'gnus-part)
5560 1))))
5561 ;; Check whether the specified part exists.
5562 (when (> n (length gnus-article-mime-handle-alist))
5563 (error "No such part")))
5564 (unless
5565 (progn
5566 ;; To select the window is needed so that the cursor
5567 ;; might be visible on the MIME button.
5568 (select-window (prog1
5569 window
5570 (setq window (selected-window))
5571 ;; Article may be displayed in the other frame.
5572 (gnus-select-frame-set-input-focus
5573 (prog1
5574 frame
5575 (setq frame (selected-frame))))))
5576 (when (gnus-article-goto-part n)
5577 ;; We point the cursor and the arrow at the MIME button
5578 ;; when the `function' prompt the user for something.
5579 (unless (and (pos-visible-in-window-p)
5580 (> (count-lines (point) (window-end))
5581 (/ (1- (window-height)) 3)))
5582 (recenter (/ (1- (window-height)) 3)))
5583 (let ((cursor-in-non-selected-windows t)
5584 (overlay-arrow-string "=>")
5585 (overlay-arrow-position (point-marker)))
5586 (unwind-protect
5587 (cond
5588 ((and no-handle interactive)
5589 (call-interactively function))
5590 (no-handle
5591 (funcall function))
5592 (interactive
5593 (call-interactively
5594 function (get-text-property (point) 'gnus-data)))
5595 (t
5596 (funcall function
5597 (get-text-property (point) 'gnus-data))))
5598 (set-marker overlay-arrow-position nil)
5599 (unless gnus-auto-select-part
5600 (gnus-select-frame-set-input-focus frame)
5601 (select-window window))))
5602 t))
5603 (if gnus-inhibit-mime-unbuttonizing
5604 ;; This is the default though the program shouldn't reach here.
5605 (error "No such part")
5606 ;; The part which doesn't have the MIME button is selected.
5607 ;; So, we display all the buttons and redo it.
5608 (let ((gnus-inhibit-mime-unbuttonizing t))
5609 (gnus-summary-show-article)
5610 (gnus-article-part-wrapper n function no-handle))))))
5612 (defun gnus-article-pipe-part (n)
5613 "Pipe MIME part N, which is the numerical prefix."
5614 (interactive "P")
5615 (gnus-article-part-wrapper n 'mm-pipe-part))
5617 (defun gnus-article-save-part (n)
5618 "Save MIME part N, which is the numerical prefix."
5619 (interactive "P")
5620 (gnus-article-part-wrapper n 'mm-save-part))
5622 (defun gnus-article-interactively-view-part (n)
5623 "View MIME part N interactively, which is the numerical prefix."
5624 (interactive "P")
5625 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5627 (defun gnus-article-copy-part (n)
5628 "Copy MIME part N, which is the numerical prefix."
5629 (interactive "P")
5630 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5632 (defun gnus-article-view-part-as-charset (n)
5633 "View MIME part N using a specified charset.
5634 N is the numerical prefix."
5635 (interactive "P")
5636 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5638 (defun gnus-article-view-part-externally (n)
5639 "View MIME part N externally, which is the numerical prefix."
5640 (interactive "P")
5641 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5643 (defun gnus-article-inline-part (n)
5644 "Inline MIME part N, which is the numerical prefix."
5645 (interactive "P")
5646 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5648 (defun gnus-article-save-part-and-strip (n)
5649 "Save MIME part N and replace it with an external body.
5650 N is the numerical prefix."
5651 (interactive "P")
5652 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5654 (defun gnus-article-replace-part (n)
5655 "Replace MIME part N with an external body.
5656 N is the numerical prefix."
5657 (interactive "P")
5658 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5660 (defun gnus-article-delete-part (n)
5661 "Delete MIME part N and add some information about the removed part.
5662 N is the numerical prefix."
5663 (interactive "P")
5664 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5666 (defun gnus-article-view-part-as-type (n)
5667 "Choose a MIME media type, and view part N as such.
5668 N is the numerical prefix."
5669 (interactive "P")
5670 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5672 (defun gnus-article-mime-match-handle-first (condition)
5673 (if condition
5674 (let (n)
5675 (dolist (ihandle gnus-article-mime-handle-alist)
5676 (if (and (cond
5677 ((functionp condition)
5678 (funcall condition (cdr ihandle)))
5679 ((eq condition 'undisplayed)
5680 (not (or (mm-handle-undisplayer (cdr ihandle))
5681 (equal (mm-handle-media-type (cdr ihandle))
5682 "multipart/alternative"))))
5683 ((eq condition 'undisplayed-alternative)
5684 (not (mm-handle-undisplayer (cdr ihandle))))
5685 (t t))
5686 (gnus-article-goto-part (car ihandle))
5687 (or (not n) (< (car ihandle) n)))
5688 (setq n (car ihandle))))
5689 (or n 1))
5690 1))
5692 (defun gnus-article-view-part (&optional n)
5693 "View MIME part N, which is the numerical prefix.
5694 If the part is already shown, hide the part. If N is nil, view
5695 all parts."
5696 (interactive "P")
5697 (with-current-buffer gnus-article-buffer
5698 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5699 gnus-article-mime-match-handle-function)))
5700 (when (> n (length gnus-article-mime-handle-alist))
5701 (error "No such part"))
5702 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5703 (when (gnus-article-goto-part n)
5704 (if (equal (car handle) "multipart/alternative")
5705 (progn
5706 (beginning-of-line) ;; Make it toggle subparts
5707 (gnus-article-press-button))
5708 (when (eq (gnus-mm-display-part handle) 'internal)
5709 (gnus-set-window-start)))))))
5711 (defsubst gnus-article-mime-total-parts ()
5712 (if (bufferp (car gnus-article-mime-handles))
5713 1 ;; single part
5714 (1- (length gnus-article-mime-handles))))
5716 (defun gnus-mm-display-part (handle)
5717 "Display HANDLE and fix MIME button."
5718 (let ((id (get-text-property (point) 'gnus-part))
5719 (point (point))
5720 (inhibit-read-only t)
5721 (window (selected-window))
5722 (mail-parse-charset gnus-newsgroup-charset)
5723 (mail-parse-ignored-charsets
5724 (if (gnus-buffer-live-p gnus-summary-buffer)
5725 (with-current-buffer gnus-summary-buffer
5726 gnus-newsgroup-ignored-charsets)
5727 nil))
5728 start retval)
5729 (unwind-protect
5730 (progn
5731 (let ((win (gnus-get-buffer-window (current-buffer) t)))
5732 (when win
5733 (select-window win)
5734 (goto-char point)))
5735 (setq start (next-single-property-change point 'gnus-data
5736 nil (point-max))
5737 point (previous-single-property-change start 'gnus-data))
5738 (if (mm-handle-displayed-p handle)
5739 ;; This will remove the part.
5740 (setq point (copy-marker point)
5741 retval (mm-display-part handle))
5742 (let ((part (or (and (mm-inlinable-p handle)
5743 (mm-inlined-p handle)
5744 t)
5745 (with-temp-buffer
5746 (gnus-bind-safe-url-regexp
5747 (setq retval (mm-display-part handle)))
5748 (unless (zerop (buffer-size))
5749 (buffer-string))))))
5750 (goto-char start)
5751 (unless (bolp)
5752 ;; This is a header button.
5753 (forward-line 1))
5754 (cond ((stringp part)
5755 (save-restriction
5756 (narrow-to-region (point)
5757 (progn
5758 (insert part)
5760 (point)))
5761 (gnus-treat-article nil id
5762 (gnus-article-mime-total-parts)
5763 (mm-handle-media-type handle))
5764 (mm-handle-set-undisplayer
5765 handle
5766 `(lambda ()
5767 (let ((inhibit-read-only t))
5768 (delete-region ,(copy-marker (point-min) t)
5769 ,(point-max-marker)))))))
5770 (part
5771 (mm-display-inline handle))))))
5772 (when (markerp point)
5773 (setq point (prog1 (marker-position point)
5774 (set-marker point nil))))
5775 (goto-char point)
5776 ;; Toggle the button appearance between `[button]...' and `[button]'.
5777 (let ((displayed-p (mm-handle-displayed-p handle)))
5778 (gnus-insert-mime-button handle id (list displayed-p))
5779 (if (featurep 'emacs)
5780 (delete-region
5781 (point)
5782 (next-single-property-change (point) 'gnus-data nil (point-max)))
5783 (let* ((end (next-single-property-change (point) 'gnus-data))
5784 (annots (annotations-at (or end (point-max)))))
5785 (delete-region (point)
5786 (if end
5787 (if annots (1+ end) end)
5788 (point-max)))
5789 (dolist (annot annots)
5790 (set-extent-endpoints annot (point) (point)))))
5791 (setq start (point))
5793 (progn
5794 (goto-char start)
5795 (unless (or displayed-p (eolp))
5796 ;; Add extra newline.
5797 (insert (propertize (buffer-substring (1- start) start)
5798 'gnus-undeletable t))))
5799 ;; We're in the article header.
5800 (delete-char -1)
5801 (dolist (ovl (gnus-overlays-in point (point)))
5802 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
5803 (gnus-overlay-put ovl 'face nil))
5804 (save-restriction
5805 (message-narrow-to-field)
5806 (let ((gnus-treatment-function-alist
5807 '((gnus-treat-highlight-headers
5808 gnus-article-highlight-headers))))
5809 (gnus-treat-article 'head)))))
5810 (goto-char point)
5811 (if (window-live-p window)
5812 (select-window window)))
5813 retval))
5815 (defun gnus-article-goto-part (n)
5816 "Go to MIME part N."
5817 (when gnus-break-pages
5818 (widen))
5819 (article-goto-body)
5820 (prog1
5821 (let ((start (or (text-property-any (point) (point-max) 'gnus-part n)
5822 ;; There may be header buttons.
5823 (text-property-any (point-min) (point) 'gnus-part n)))
5824 part handle end next handles)
5825 (when start
5826 (goto-char start)
5827 (if (setq handle (get-text-property start 'gnus-data))
5828 start
5829 ;; Go to the displayed subpart, assuming this is
5830 ;; multipart/alternative.
5831 (setq part start
5832 end (point-at-eol))
5833 (while (and (not handle)
5834 part
5835 (< part end)
5836 (setq next (text-property-not-all part end
5837 'gnus-data nil)))
5838 (setq part next
5839 handle (get-text-property part 'gnus-data))
5840 (push (cons handle part) handles)
5841 (unless (mm-handle-displayed-p handle)
5842 (setq handle nil
5843 part (text-property-any part end 'gnus-data nil))))
5844 (unless handle
5845 ;; No subpart is displayed, so we find preferred one.
5846 (setq part
5847 (cdr (assq (mm-preferred-alternative
5848 (nreverse (mapcar 'car handles)))
5849 handles))))
5850 (if part
5851 (goto-char (1+ part))
5852 start))))
5853 (when gnus-break-pages
5854 (gnus-narrow-to-page))))
5856 (defun gnus-insert-mime-button (handle id &optional displayed)
5857 (let ((gnus-tmp-name
5858 (or (mm-handle-filename handle)
5859 (mail-content-type-get (mm-handle-type handle) 'url)
5860 ""))
5861 (gnus-tmp-id id)
5862 (gnus-tmp-type (mm-handle-media-type handle))
5863 (gnus-tmp-description (or (mm-handle-description handle) ""))
5864 (gnus-tmp-dots
5865 (if (if displayed (car displayed)
5866 (mm-handle-displayed-p handle))
5867 "" "..."))
5868 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5869 (buffer-size)))
5870 gnus-tmp-type-long b e)
5871 (when (string-match ".*/" gnus-tmp-name)
5872 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5873 (setq gnus-tmp-type-long (concat gnus-tmp-type
5874 (and (not (equal gnus-tmp-name ""))
5875 (concat "; " gnus-tmp-name))))
5876 (unless (equal gnus-tmp-description "")
5877 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5878 (setq b (point))
5879 (gnus-eval-format
5880 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5881 `(keymap ,gnus-mime-button-map
5882 gnus-callback gnus-mm-display-part
5883 gnus-part ,gnus-tmp-id
5884 article-type annotation
5885 gnus-data ,handle
5886 rear-nonsticky t))
5887 (setq e (if (bolp)
5888 ;; Exclude a newline.
5889 (1- (point))
5890 (point)))
5891 (when gnus-article-button-face
5892 (gnus-overlay-put (gnus-make-overlay b e nil t)
5893 'face gnus-article-button-face))
5894 (widget-convert-button
5895 'link b e
5896 :mime-handle handle
5897 :action 'gnus-widget-press-button
5898 :button-keymap gnus-mime-button-map
5899 :help-echo
5900 (lambda (widget)
5901 ;; Needed to properly clear the message due to a bug in
5902 ;; wid-edit (XEmacs only).
5903 (if (boundp 'help-echo-owns-message)
5904 (setq help-echo-owns-message t))
5905 (format
5906 "%S: %s the MIME part; %S: more options"
5907 (aref gnus-mouse-2 0)
5908 (if (mm-handle-displayed-p (widget-get widget :mime-handle))
5909 "hide" "show")
5910 (aref gnus-down-mouse-3 0))))))
5912 (defun gnus-widget-press-button (elems _el)
5913 (goto-char (widget-get elems :from))
5914 (gnus-article-press-button))
5916 (defvar gnus-displaying-mime nil)
5918 (defun gnus-display-mime (&optional ihandles)
5919 "Display the MIME parts."
5920 (save-excursion
5921 (save-selected-window
5922 (let ((window (get-buffer-window gnus-article-buffer))
5923 (point (point)))
5924 (when window
5925 (select-window window)
5926 ;; We have to do this since selecting the window
5927 ;; may change the point. So we set the window point.
5928 (set-window-point window point)))
5929 (let ((handles ihandles)
5930 (inhibit-read-only t))
5931 (cond (handles)
5932 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5933 (when gnus-article-emulate-mime
5934 (mm-uu-dissect-text-parts handles)))
5935 (gnus-article-emulate-mime
5936 (setq handles (mm-uu-dissect))))
5937 (when (and (not ihandles)
5938 (not gnus-displaying-mime))
5939 ;; Top-level call; we clean up.
5940 (when gnus-article-mime-handles
5941 (mm-destroy-parts gnus-article-mime-handles)
5942 (setq gnus-article-mime-handle-alist nil));; A trick.
5943 (setq gnus-article-mime-handles handles)
5944 ;; We allow users to glean info from the handles.
5945 (when gnus-article-mime-part-function
5946 (gnus-mime-part-function handles)))
5947 (if (and handles
5948 (or (not (stringp (car handles)))
5949 (cdr handles)))
5950 (progn
5951 (when (and (not ihandles)
5952 (not gnus-displaying-mime))
5953 ;; Clean up for mime parts.
5954 (article-goto-body)
5955 (delete-region (point) (point-max)))
5956 (let ((gnus-displaying-mime t))
5957 (gnus-mime-display-part handles)))
5958 (save-restriction
5959 (article-goto-body)
5960 (narrow-to-region (point) (point-max))
5961 (gnus-treat-article nil 1 1 "text/plain")
5962 (widen)))
5963 (unless ihandles
5964 ;; Highlight the headers.
5965 (save-excursion
5966 (save-restriction
5967 (article-goto-body)
5968 (narrow-to-region (point-min) (point))
5969 (gnus-article-save-original-date
5970 (gnus-treat-article 'head)))))))
5971 ;; Cope with broken MIME messages.
5972 (goto-char (point-max))
5973 (unless (bolp)
5976 (defcustom gnus-mime-display-multipart-as-mixed nil
5979 If t, it overrides nil values of
5980 `gnus-mime-display-multipart-alternative-as-mixed' and
5981 `gnus-mime-display-multipart-related-as-mixed'."
5982 :group 'gnus-article-mime
5983 :type 'boolean)
5985 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5987 :version "22.1"
5988 :group 'gnus-article-mime
5989 :type 'boolean)
5991 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5995 `mm-discouraged-alternatives'\) images or other material inside a
5997 :version "22.1"
5998 :group 'gnus-article-mime
5999 :type 'boolean)
6001 (defcustom gnus-mime-display-attachment-buttons-in-header t
6002 "Add attachment buttons in the end of the header of an article.
6003 Since MIME attachments tend to be put at the end of an article, we may
6004 overlook them if there is a huge body. This option offers you a copy
6005 of all non-inlinable MIME parts as buttons shown in front of an article.
6006 If nil, don't show those extra buttons."
6007 :version "25.1"
6008 :group 'gnus-article-mime
6009 :type 'boolean)
6011 (defun gnus-mime-display-part (handle)
6012 (cond
6013 ;; Maybe a broken MIME message.
6014 ((null handle))
6015 ;; Single part.
6016 ((not (stringp (car handle)))
6017 (gnus-mime-display-single handle))
6018 ;; User-defined multipart
6019 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
6020 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
6021 handle))
6022 ;; multipart/alternative
6023 ((and (equal (car handle) "multipart/alternative")
6024 (not (or gnus-mime-display-multipart-as-mixed
6025 gnus-mime-display-multipart-alternative-as-mixed)))
6026 (let ((id (1+ (length gnus-article-mime-handle-alist))))
6027 (push (cons id handle) gnus-article-mime-handle-alist)
6028 (gnus-mime-display-alternative (cdr handle) nil nil id)))
6029 ;; multipart/related
6030 ((and (equal (car handle) "multipart/related")
6031 (not (or gnus-mime-display-multipart-as-mixed
6032 gnus-mime-display-multipart-related-as-mixed)))
6033 (gnus-mime-display-part (cadr handle)))
6034 ((equal (car handle) "multipart/signed")
6035 (gnus-add-wash-type 'signed)
6036 (gnus-mime-display-security handle))
6037 ((equal (car handle) "multipart/encrypted")
6038 (gnus-add-wash-type 'encrypted)
6039 (gnus-mime-display-security handle))
6040 ;; Other multiparts are handled like multipart/mixed.
6041 (t
6042 (gnus-mime-display-mixed (cdr handle)))))
6044 (defun gnus-mime-part-function (handles)
6045 (if (stringp (car handles))
6046 (mapcar 'gnus-mime-part-function (cdr handles))
6047 (funcall gnus-article-mime-part-function handles)))
6049 (defun gnus-mime-display-mixed (handles)
6050 (mapcar 'gnus-mime-display-part handles))
6052 (defun gnus-mime-display-single (handle)
6053 (let ((type (mm-handle-media-type handle))
6054 (ignored gnus-ignored-mime-types)
6055 (not-attachment t)
6056 display text)
6057 (catch 'ignored
6058 (progn
6059 (while ignored
6060 (when (string-match (pop ignored) type)
6061 (throw 'ignored nil)))
6062 (if (and (not (and (if (gnus-buffer-live-p gnus-summary-buffer)
6063 (with-current-buffer gnus-summary-buffer
6064 gnus-inhibit-images)
6065 gnus-inhibit-images)
6067 (setq not-attachment
6068 (and (not (mm-inline-override-p handle))
6069 (or (not (mm-handle-disposition handle))
6070 (equal (car (mm-handle-disposition handle))
6071 "inline")
6072 (mm-attachment-override-p handle))))
6073 (mm-automatic-display-p handle)
6074 (or (and
6075 (mm-inlinable-p handle)
6076 (mm-inlined-p handle))
6077 (mm-automatic-external-display-p type)))
6078 (setq display t)
6079 (when (equal (mm-handle-media-supertype handle) "text")
6080 (setq text t)))
6081 (let ((id (car (rassq handle gnus-article-mime-handle-alist)))
6082 beg)
6083 (unless id
6084 (setq id (1+ (length gnus-article-mime-handle-alist)))
6085 (push (cons id handle) gnus-article-mime-handle-alist))
6086 (when (and display
6087 (equal (mm-handle-media-supertype handle) "message"))
6088 (insert-char
6090 (cond ((not (bolp)) 2)
6092 (t 1))))
6093 (when (or (not display)
6094 (not (gnus-unbuttonized-mime-type-p type))
6095 (eq id gnus-mime-buttonized-part-id))
6096 (gnus-insert-mime-button
6097 handle id (list (or display (and not-attachment text)))))
6098 (setq beg (point))
6099 (cond
6100 (display
6101 (let ((mail-parse-charset gnus-newsgroup-charset)
6102 (mail-parse-ignored-charsets
6103 (save-excursion (condition-case ()
6104 (set-buffer gnus-summary-buffer)
6105 (error))
6106 gnus-newsgroup-ignored-charsets)))
6107 (gnus-bind-safe-url-regexp (mm-display-part handle t))))
6108 ((and text not-attachment)
6109 (mm-display-inline handle)))
6110 (goto-char (point-max))
6112 (gnus-article-insert-newline)
6113 (if (prog1
6115 (unless (eobp) (forward-char 1)))
6116 (gnus-article-insert-newline)
6117 (put-text-property (point) (point-max) 'gnus-undeletable t))
6118 (goto-char (point-max)))
6119 ;; Do highlighting.
6120 (save-excursion
6121 (save-restriction
6122 (narrow-to-region beg (point))
6123 (if (eq handle gnus-article-mime-handles)
6124 ;; The format=flowed case.
6125 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
6126 ;; Don't count signature parts that are never displayed.
6127 ;; The part number should be re-calculated supposing this
6128 ;; might be a message/rfc822 part.
6129 (let (handles)
6130 (dolist (part gnus-article-mime-handles)
6131 (unless (or (stringp part)
6132 (equal (car (mm-handle-type part))
6133 "application/pgp-signature"))
6134 (push part handles)))
6135 (gnus-treat-article
6136 nil (length (memq handle handles)) (length handles)
6137 (mm-handle-media-type handle)))))))))))
6139 (defun gnus-unbuttonized-mime-type-p (type)
6140 "Say whether TYPE is to be unbuttonized."
6141 (unless gnus-inhibit-mime-unbuttonizing
6142 (when (catch 'found
6143 (let ((types gnus-unbuttonized-mime-types))
6144 (while types
6145 (when (string-match (pop types) type)
6146 (throw 'found t)))))
6147 (not (catch 'found
6148 (let ((types gnus-buttonized-mime-types))
6149 (while types
6150 (when (string-match (pop types) type)
6151 (throw 'found t)))))))))
6153 (defun gnus-article-insert-newline ()
6154 "Insert a newline, but mark it as undeletable."
6155 (gnus-put-text-property
6158 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
6159 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
6160 (ihandles handles)
6161 (point (point))
6162 handle (inhibit-read-only t) from begend not-pref)
6163 (save-window-excursion
6164 (save-restriction
6165 (when ibegend
6166 (narrow-to-region (car ibegend)
6167 (or (cdr ibegend)
6168 (progn
6169 (goto-char (car ibegend))
6170 (forward-line 2)
6171 (point))))
6172 (delete-region (point-min) (point-max))
6173 (mm-remove-parts handles))
6174 (setq begend (list (point-marker)))
6175 ;; Do the toggle.
6176 (unless (setq not-pref (cadr (member preferred ihandles)))
6177 (setq not-pref (car ihandles)))
6178 (when (or ibegend
6179 (not preferred)
6180 (not (gnus-unbuttonized-mime-type-p
6181 "multipart/alternative")))
6182 (gnus-add-text-properties
6183 (setq from (point))
6184 (progn
6185 (insert (format "%d. " id))
6186 (point))
6187 `(gnus-callback
6188 (lambda (handles)
6189 (unless ,(not ibegend)
6190 (setq gnus-article-mime-handle-alist
6191 ',gnus-article-mime-handle-alist))
6192 (gnus-mime-display-alternative
6193 ',ihandles ',not-pref ',begend ,id))
6194 keymap ,gnus-mime-button-map
6195 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6196 face ,gnus-article-button-face
6197 gnus-part ,id
6198 article-type multipart
6199 rear-nonsticky t))
6200 (widget-convert-button 'link from (point)
6201 :action 'gnus-widget-press-button
6202 :button-keymap gnus-widget-button-keymap)
6203 ;; Do the handles
6204 (while (setq handle (pop handles))
6205 (gnus-add-text-properties
6206 (setq from (point))
6207 (progn
6208 (insert (format "(%c) %-18s"
6209 (if (equal handle preferred) ?* ? )
6210 (mm-handle-media-type handle)))
6211 (point))
6212 `(gnus-callback
6213 (lambda (handles)
6214 (unless ,(not ibegend)
6215 (setq gnus-article-mime-handle-alist
6216 ',gnus-article-mime-handle-alist))
6217 (gnus-mime-display-alternative
6218 ',ihandles ',handle ',begend ,id))
6219 keymap ,gnus-mime-button-map
6220 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6221 face ,gnus-article-button-face
6222 gnus-part ,id
6223 gnus-data ,handle
6224 rear-nonsticky t))
6225 (widget-convert-button 'link from (point)
6226 :action 'gnus-widget-press-button
6227 :button-keymap gnus-widget-button-keymap)
6228 (insert " "))
6230 (when preferred
6231 (if (stringp (car preferred))
6232 (gnus-display-mime preferred)
6233 (let ((mail-parse-charset gnus-newsgroup-charset)
6234 (mail-parse-ignored-charsets
6235 (with-current-buffer gnus-summary-buffer
6236 gnus-newsgroup-ignored-charsets)))
6237 (gnus-bind-safe-url-regexp (mm-display-part preferred))
6238 ;; Do highlighting.
6239 (save-excursion
6240 (save-restriction
6241 (narrow-to-region (car begend) (point-max))
6242 (gnus-treat-article
6243 nil (length gnus-article-mime-handle-alist)
6244 (gnus-article-mime-total-parts)
6245 (mm-handle-media-type preferred))))))
6246 (goto-char (point-max))
6247 (setcdr begend (point-marker)))))
6248 (when ibegend
6249 (goto-char point)))
6250 ;; Redraw attachment buttons in the header.
6251 (when gnus-mime-display-attachment-buttons-in-header
6252 (gnus-mime-buttonize-attachments-in-header)))
6254 (defconst gnus-article-wash-status-strings
6255 (let ((alist '((cite "c" "Possible hidden citation text"
6256 " " "All citation text visible")
6257 (headers "h" "Hidden headers"
6258 " " "All headers visible.")
6259 (pgp "p" "Encrypted or signed message status hidden"
6260 " " "No hidden encryption nor digital signature status")
6261 (signature "s" "Signature has been hidden"
6262 " " "Signature is visible")
6263 (overstrike "o" "Overstrike (^H) characters applied"
6264 " " "No overstrike characters applied")
6265 (emphasis "e" "/*_Emphasis_*/ characters applied"
6266 " " "No /*_emphasis_*/ characters applied")))
6267 result)
6268 (dolist (entry alist result)
6269 (let ((key (nth 0 entry))
6270 (on (copy-sequence (nth 1 entry)))
6271 (on-help (nth 2 entry))
6272 (off (copy-sequence (nth 3 entry)))
6273 (off-help (nth 4 entry)))
6274 (put-text-property 0 1 'help-echo on-help on)
6275 (put-text-property 0 1 'help-echo off-help off)
6276 (push (list key on off) result))))
6277 "Alist of strings describing wash status in the mode line.
6278 Each entry has the form (KEY ON OF), where the KEY is a symbol
6279 representing the particular washing function, ON is the string to use
6280 in the article mode line when the washing function is active, and OFF
6281 is the string to use when it is inactive.")
6283 (defun gnus-article-wash-status-entry (key value)
6284 (let ((entry (assoc key gnus-article-wash-status-strings)))
6285 (if value (nth 1 entry) (nth 2 entry))))
6287 (defun gnus-article-wash-status ()
6288 "Return a string which display status of article washing."
6289 (with-current-buffer gnus-article-buffer
6290 (let ((cite (memq 'cite gnus-article-wash-types))
6291 (headers (memq 'headers gnus-article-wash-types))
6292 (boring (memq 'boring-headers gnus-article-wash-types))
6293 (pgp (memq 'pgp gnus-article-wash-types))
6294 (pem (memq 'pem gnus-article-wash-types))
6295 (signed (memq 'signed gnus-article-wash-types))
6296 (encrypted (memq 'encrypted gnus-article-wash-types))
6297 (signature (memq 'signature gnus-article-wash-types))
6298 (overstrike (memq 'overstrike gnus-article-wash-types))
6299 (emphasis (memq 'emphasis gnus-article-wash-types)))
6300 (concat
6301 (gnus-article-wash-status-entry 'cite cite)
6302 (gnus-article-wash-status-entry 'headers (or headers boring))
6303 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
6304 (gnus-article-wash-status-entry 'signature signature)
6305 (gnus-article-wash-status-entry 'overstrike overstrike)
6306 (gnus-article-wash-status-entry 'emphasis emphasis)))))
6308 (defun gnus-add-wash-type (type)
6309 "Add a washing of TYPE to the current status."
6310 (add-to-list 'gnus-article-wash-types type))
6312 (defun gnus-delete-wash-type (type)
6313 "Add a washing of TYPE to the current status."
6314 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
6316 (defun gnus-add-image (category image)
6317 "Add IMAGE of CATEGORY to the list of displayed images."
6318 (let ((entry (assq category gnus-article-image-alist)))
6319 (unless entry
6320 (setq entry (list category))
6321 (push entry gnus-article-image-alist))
6322 (nconc entry (list image))))
6324 (defun gnus-delete-images (category)
6325 "Delete all images in CATEGORY."
6326 (let ((entry (assq category gnus-article-image-alist)))
6327 (dolist (image (cdr entry))
6328 (gnus-remove-image image category))
6329 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
6330 (gnus-delete-wash-type category)))
6332 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6334 (defun gnus-article-maybe-hide-headers ()
6335 "Hide unwanted headers if `gnus-have-all-headers' is nil.
6336 Provided for backwards compatibility."
6337 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
6338 (not (with-current-buffer gnus-summary-buffer
6339 gnus-have-all-headers)))
6340 (not gnus-inhibit-hiding))
6341 (gnus-article-hide-headers)))
6343 (declare-function shr-put-image "shr" (data alt &optional flags))
6345 (defun gnus-shr-put-image (data alt &optional flags)
6346 "Put image DATA with a string ALT. Enable image to be deleted."
6347 (let ((image (if flags
6348 (shr-put-image data (propertize (or alt "*")
6349 'gnus-image-category 'shr)
6350 flags)
6351 ;; Old `shr-put-image' doesn't take the optional `flags'
6352 ;; argument.
6353 (shr-put-image data (propertize (or alt "*")
6354 'gnus-image-category 'shr)))))
6355 (when image
6356 (gnus-add-image 'shr image))))
6358 (defun gnus-article-mime-handles (&optional alist id all)
6359 (if alist
6360 (let ((i 1) newid flat)
6361 (dolist (handle alist flat)
6362 (setq newid (append id (list i))
6363 i (1+ i))
6364 (if (stringp (car handle))
6365 (setq flat (nconc flat (gnus-article-mime-handles
6366 (cdr handle) newid all)))
6367 (delq (rassq handle all) all)
6368 (setq flat (nconc flat (list (cons newid handle)))))))
6369 (let ((flat (list nil)))
6370 ;; Assume that elements of `gnus-article-mime-handle-alist'
6371 ;; are in the decreasing order, but unnumbered subsidiaries
6372 ;; in each element are in the increasing order.
6373 (dolist (handle (reverse gnus-article-mime-handle-alist))
6374 (if (stringp (cadr handle))
6375 (setq flat (nconc flat (gnus-article-mime-handles
6376 (cddr handle) (list (car handle)) flat)))
6377 (delq (rassq (cdr handle) flat) flat)
6378 (setq flat (nconc flat (list (cons (list (car handle))
6379 (cdr handle)))))))
6380 (setq flat (cdr flat))
6381 (mapc (lambda (handle)
6382 (if (cdar handle)
6383 ;; This is a hidden (i.e. unnumbered) handle.
6384 (progn
6385 (setcar handle
6386 (1+ (caar gnus-article-mime-handle-alist)))
6387 (push handle gnus-article-mime-handle-alist))
6388 (setcar handle (caar handle))))
6389 flat)
6390 flat)))
6392 (defun gnus-mime-buttonize-attachments-in-header (&optional interactive)
6393 "Show attachments as buttons in the end of the header of an article.
6394 This function toggles the display when called interactively. Note that
6395 buttons to be added to the header are only the ones that aren't inlined
6396 in the body. Use `gnus-header-face-alist' to highlight buttons."
6397 (interactive (list t))
6398 (gnus-with-article-buffer
6399 (let ((case-fold-search t) buttons handle type st)
6400 (save-excursion
6401 (save-restriction
6402 (widen)
6403 (article-narrow-to-head)
6404 ;; Header buttons exist?
6405 (while (and (not buttons)
6407 (when (get-char-property (match-end 0)
6408 'gnus-button-attachment-extra)
6409 (setq buttons (match-beginning 0))))
6410 (widen)
6411 (when buttons
6412 ;; Delete header buttons.
6413 (delete-region buttons (if (re-search-forward "^[^ ]" nil t)
6414 (match-beginning 0)
6415 (point-max))))
6416 (unless (and interactive buttons)
6417 ;; Find buttons.
6418 (setq buttons nil)
6419 (dolist (button (gnus-article-mime-handles))
6420 (setq handle (cdr button)
6421 type (mm-handle-media-type handle))
6422 (when (or (and (if (gnus-buffer-live-p gnus-summary-buffer)
6423 (with-current-buffer gnus-summary-buffer
6424 gnus-inhibit-images)
6425 gnus-inhibit-images)
6427 (mm-inline-override-p handle)
6428 (and (mm-handle-disposition handle)
6429 (not (equal (car (mm-handle-disposition handle))
6430 "inline"))
6431 (not (mm-attachment-override-p handle)))
6432 (not (mm-automatic-display-p handle))
6433 (not (or (and (mm-inlinable-p handle)
6434 (mm-inlined-p handle))
6435 (mm-automatic-external-display-p type))))
6436 (push button buttons)))
6437 (when buttons
6438 ;; Add header buttons.
6439 (article-goto-body)
6440 (forward-line -1)
6441 (narrow-to-region (point) (point))
6442 (insert "Attachment" (if (cdr buttons) "s" "") ":")
6443 (dolist (button (nreverse buttons))
6444 (setq st (point))
6445 (insert " ")
6446 (mm-handle-set-undisplayer (setq handle (cdr button)) nil)
6447 (gnus-insert-mime-button handle (car button))
6449 (delete-region (point) (point-max))
6450 (when (> (current-column) (window-width))
6451 (goto-char st)
6453 (end-of-line)))
6455 (dolist (ovl (gnus-overlays-in (point-min) (point)))
6456 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
6457 (gnus-overlay-put ovl 'face nil))
6458 (let ((gnus-treatment-function-alist
6459 '((gnus-treat-highlight-headers
6460 gnus-article-highlight-headers))))
6461 (gnus-treat-article 'head)))))))))
6463 ;;; Article savers.
6465 (defun gnus-output-to-file (file-name)
6466 "Append the current article to a file named FILE-NAME.
6467 If `gnus-article-save-coding-system' is non-nil, it is used to encode
6468 text and used as the value of the coding cookie which is added to the
6469 top of a file. Otherwise, this function saves a raw article without
6470 the coding cookie."
6471 (let* ((artbuf (current-buffer))
6472 (file-name-coding-system nnmail-pathname-coding-system)
6473 (coding gnus-article-save-coding-system)
6474 (coding-system-for-read (if coding
6475 nil ;; Rely on the coding cookie.
6476 mm-text-coding-system))
6477 (coding-system-for-write (or coding
6478 mm-text-coding-system-for-write
6479 mm-text-coding-system))
6480 (exists (file-exists-p file-name)))
6481 (with-temp-buffer
6482 (when exists
6483 (insert-file-contents file-name)
6484 (goto-char (point-min))
6485 ;; Remove the existing coding cookie.
6487 (delete-region (match-beginning 0) (match-end 0))))
6488 (goto-char (point-max))
6489 (insert-buffer-substring artbuf)
6490 ;; Append newline at end of the buffer as separator, and then
6491 ;; save it to file.
6492 (goto-char (point-max))
6494 (when coding
6495 ;; If the coding system is not suitable to encode the text,
6496 ;; ask a user for a proper one.
6497 (when (fboundp 'select-safe-coding-system)
6498 (setq coding (coding-system-base
6499 (save-window-excursion
6500 (select-safe-coding-system (point-min) (point-max)
6501 coding))))
6502 (setq coding-system-for-write
6503 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
6504 coding)))
6505 (goto-char (point-min))
6506 ;; Add the coding cookie.
6508 coding-system-for-write)))
6509 (if exists
6510 (progn
6511 (write-region (point-min) (point-max) file-name nil 'no-message)
6512 (message "Appended to %s" file-name))
6513 (write-region (point-min) (point-max) file-name))))
6514 t)
6516 (defun gnus-narrow-to-page (&optional arg)
6517 "Narrow the article buffer to a page.
6518 If given a numerical ARG, move forward ARG pages."
6519 (interactive "P")
6520 (setq arg (if arg (prefix-numeric-value arg) 0))
6521 (with-current-buffer gnus-article-buffer
6522 (widen)
6523 ;; Remove any old next/prev buttons.
6524 (when (gnus-visual-p 'page-marker)
6525 (let ((inhibit-read-only t))
6526 (gnus-remove-text-with-property 'gnus-prev)
6527 (gnus-remove-text-with-property 'gnus-next)))
6528 (let (st nd pt)
6529 (when (save-excursion
6530 (cond ((< arg 0)
6531 (if (re-search-backward page-delimiter nil 'move (abs arg))
6532 (prog1
6533 (setq nd (match-beginning 0)
6534 pt nd)
6535 (when (re-search-backward page-delimiter nil t)
6536 (setq st (match-end 0))))
6537 (when (re-search-forward page-delimiter nil t)
6538 (setq nd (match-beginning 0)
6539 pt (point-min)))))
6540 ((> arg 0)
6541 (if (re-search-forward page-delimiter nil 'move arg)
6542 (prog1
6543 (setq st (match-end 0)
6544 pt st)
6545 (when (re-search-forward page-delimiter nil t)
6546 (setq nd (match-beginning 0))))
6547 (when (re-search-backward page-delimiter nil t)
6548 (setq st (match-end 0)
6549 pt (point-max)))))
6550 (t
6551 (when (re-search-backward page-delimiter nil t)
6552 (goto-char (setq st (match-end 0))))
6553 (when (re-search-forward page-delimiter nil t)
6554 (setq nd (match-beginning 0)))
6555 (or st nd))))
6556 (setq gnus-page-broken t)
6557 (when pt (goto-char pt))
6558 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6559 (when (gnus-visual-p 'page-marker)
6560 (save-excursion
6561 (when nd
6562 (goto-char nd)
6563 (gnus-insert-next-page-button))
6564 (when st
6565 (goto-char st)
6566 (gnus-insert-prev-page-button))))))))
6568 ;; Article mode commands
6570 (defun gnus-article-goto-next-page ()
6571 "Show the next page of the article."
6572 (interactive)
6573 (when (gnus-article-next-page)
6574 (goto-char (point-min))
6575 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
6578 (defun gnus-article-goto-prev-page ()
6579 "Show the previous page of the article."
6580 (interactive)
6581 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6582 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
6583 (gnus-article-prev-page nil)))
6585 ;; This is cleaner but currently breaks `gnus-pick-mode':
6586 ;;
6587 ;; (defun gnus-article-goto-next-page ()
6588 ;; "Show the next page of the article."
6589 ;; (interactive)
6590 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6591 ;; (gnus-summary-next-page)))
6592 ;;
6593 ;; (defun gnus-article-goto-prev-page ()
6594 ;; "Show the next page of the article."
6595 ;; (interactive)
6596 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6597 ;; (gnus-summary-prev-page)))
6599 (defun gnus-article-next-page (&optional lines)
6600 "Show the next page of the current article.
6601 If end of article, return non-nil. Otherwise return nil.
6602 Argument LINES specifies lines to be scrolled up."
6603 (interactive "p")
6604 (move-to-window-line (if (featurep 'xemacs) -1 (- -1 scroll-margin)))
6605 (if (and (not (and gnus-article-over-scroll
6606 (> (count-lines (window-start) (point-max))
6607 (if (featurep 'xemacs)
6608 (or lines (1- (window-height)))
6609 (+ (or lines (1- (window-height))) scroll-margin)))))
6610 (save-excursion
6611 (end-of-line)
6612 (and (pos-visible-in-window-p) ;Not continuation line.
6613 (>= (point) (point-max)))))
6614 ;; Nothing in this page.
6615 (if (or (not gnus-page-broken)
6616 (save-excursion
6617 (save-restriction
6618 (widen)
6619 (forward-line)
6620 (eobp)))) ;Real end-of-buffer?
6621 (progn
6622 (when gnus-article-over-scroll
6623 (gnus-article-next-page-1 lines))
6624 t) ;Nothing more.
6625 (gnus-narrow-to-page 1) ;Go to next page.
6626 nil)
6627 ;; More in this page.
6628 (gnus-article-next-page-1 lines)
6629 nil))
6631 (defun gnus-article-beginning-of-window ()
6632 "Move point to the beginning of the window.
6633 In Emacs, the point is placed at the line number which `scroll-margin'
6634 specifies."
6635 (if (featurep 'xemacs)
6636 (move-to-window-line 0)
6637 ;; There is an obscure bug in Emacs that makes it impossible to
6638 ;; scroll past big pictures in the article buffer. Try to fix
6639 ;; this by adding a sanity check by counting the lines visible.
6640 (when (> (count-lines (window-start) (window-end)) 30)
6641 (move-to-window-line
6642 (min (max 0 scroll-margin)
6643 (max 1 (- (window-height)
6644 (if mode-line-format 1 0)
6645 (if header-line-format 1 0)
6646 2)))))))
6648 (defvar scroll-in-place)
6650 (defun gnus-article-next-page-1 (lines)
6651 (condition-case ()
6652 (let ((scroll-in-place nil)
6653 (auto-window-vscroll nil))
6654 (scroll-up lines))
6655 (end-of-buffer
6656 ;; Long lines may cause an end-of-buffer error.
6657 (goto-char (point-max))))
6658 (gnus-article-beginning-of-window))
6660 (defun gnus-article-prev-page (&optional lines)
6661 "Show previous page of current article.
6662 Argument LINES specifies lines to be scrolled down."
6663 (interactive "p")
6664 (move-to-window-line 0)
6665 (if (and gnus-page-broken
6666 (bobp)
6667 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6668 (progn
6669 (gnus-narrow-to-page -1) ;Go to previous page.
6670 (goto-char (point-max))
6671 (recenter (if gnus-article-over-scroll
6672 (if lines
6673 (max (if (featurep 'xemacs)
6674 lines
6675 (+ lines scroll-margin))
6676 3)
6677 (- (window-height) 2))
6678 -1)))
6679 (prog1
6680 (condition-case ()
6681 (let ((scroll-in-place nil))
6682 (scroll-down lines))
6683 (beginning-of-buffer
6684 (goto-char (point-min))))
6685 (gnus-article-beginning-of-window))))
6687 (defun gnus-article-only-boring-p ()
6688 "Decide whether there is only boring text remaining in the article.
6690 not have a face in `gnus-article-boring-faces'."
6691 (when (and gnus-article-skip-boring
6692 (boundp 'gnus-article-boring-faces)
6693 (symbol-value 'gnus-article-boring-faces))
6694 (save-excursion
6695 (let ((inhibit-point-motion-hooks t))
6696 (catch 'only-boring
6698 (forward-char -1)
6699 (when (not (gnus-intersection
6700 (gnus-faces-at (point))
6701 (symbol-value 'gnus-article-boring-faces)))
6702 (throw 'only-boring nil)))
6703 (throw 'only-boring t))))))
6705 (defun gnus-article-refer-article ()
6706 "Read article specified by message-id around point."
6707 (interactive)
6708 (save-excursion
6712 (let ((msg-id (concat "<" (match-string 0) ">")))
6713 (set-buffer gnus-summary-buffer)
6714 (gnus-summary-refer-article msg-id))
6715 (error "No references around point"))))
6717 (defun gnus-article-show-summary ()
6718 "Reconfigure windows to show summary buffer."
6719 (interactive)
6720 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6721 (error "There is no summary buffer for this article buffer")
6722 (gnus-article-set-globals)
6723 (gnus-configure-windows 'article)
6724 (gnus-summary-goto-subject gnus-current-article)
6725 (gnus-summary-position-point)))
6727 (defun gnus-article-describe-briefly ()
6728 "Describe article mode commands briefly."
6729 (interactive)
6730 (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")))
6732 (defun gnus-article-check-buffer ()
6733 "Beep if not in an article buffer."
6734 (unless (derived-mode-p 'gnus-article-mode)
6735 (error "Command invoked outside of a Gnus article buffer")))
6737 (defvar gnus-pick-mode)
6739 (defun gnus-article-read-summary-keys (&optional _arg key not-restore-window)
6740 "Read a summary buffer key sequence and execute it from the article buffer."
6741 (interactive "P")
6742 (gnus-article-check-buffer)
6743 (let ((nosaves
6744 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6745 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6746 "=" "^" "\M-^" "|"))
6747 (nosave-but-article
6749 "An" "Ap" [?A (meta return)] [?A delete]))
6750 (nosave-in-article
6751 '("AS" "\C-d"))
6752 keys new-sum-point)
6753 (with-current-buffer gnus-article-current-summary
6754 (let (gnus-pick-mode)
6755 (setq unread-command-events (nconc unread-command-events
6756 (list (or key last-command-event)))
6757 keys (if (featurep 'xemacs)
6758 (events-to-keys (read-key-sequence nil t))
6759 (read-key-sequence nil t)))))
6761 (message "")
6763 (cond
6764 ((eq (aref keys (1- (length keys))) ?\C-h)
6765 (gnus-article-describe-bindings (substring keys 0 -1)))
6766 ((or (member keys nosaves)
6767 (member keys nosave-but-article)
6768 (member keys nosave-in-article))
6769 (let (func)
6770 (save-window-excursion
6771 (pop-to-buffer gnus-article-current-summary)
6772 ;; We disable the pick minor mode commands.
6773 (let (gnus-pick-mode)
6774 (setq func (key-binding keys t))))
6775 (if (or (not func)
6776 (numberp func))
6777 (ding)
6778 (unless (member keys nosave-in-article)
6779 (set-buffer gnus-article-current-summary))
6780 (when (and (symbolp func)
6781 (get func 'disabled))
6782 (error "Function %s disabled" func))
6783 (call-interactively func)
6784 (setq new-sum-point (point)))
6785 (when (member keys nosave-but-article)
6786 (pop-to-buffer gnus-article-buffer))))
6787 (t
6788 ;; These commands should restore window configuration.
6789 (let ((obuf (current-buffer))
6790 (owin (current-window-configuration))
6791 win func in-buffer selected new-sum-start new-sum-hscroll err)
6792 (cond (not-restore-window
6793 (pop-to-buffer gnus-article-current-summary)
6794 (setq win (selected-window)))
6795 ((setq win (get-buffer-window gnus-article-current-summary))
6796 (select-window win))
6797 (t
6798 (let ((summary-buffer gnus-article-current-summary))
6799 (gnus-configure-windows 'article)
6800 (unless (setq win (get-buffer-window summary-buffer 'visible))
6801 (let ((gnus-buffer-configuration
6802 '((article ((vertical 1.0
6803 (summary 0.25 point)
6804 (article 1.0)))))))
6805 (gnus-configure-windows 'article))
6806 (setq win (get-buffer-window summary-buffer 'visible)))
6807 (gnus-select-frame-set-input-focus (window-frame win))
6808 (select-window win))))
6809 (setq in-buffer (current-buffer))
6810 ;; We disable the pick minor mode commands.
6811 (setq func (let (gnus-pick-mode)
6812 (key-binding keys t)))
6813 (when (get func 'disabled)
6814 (error "Function %s disabled" func))
6815 (if (and func
6816 (functionp func)
6817 (condition-case code
6818 (progn
6819 (call-interactively func)
6820 t)
6821 (error
6822 (setq err code)
6823 nil)))
6824 (progn
6825 (when (eq win (selected-window))
6826 (setq new-sum-point (point)
6827 new-sum-start (window-start win)
6828 new-sum-hscroll (window-hscroll win)))
6829 (when (or (eq in-buffer (current-buffer))
6830 (when (eq obuf (current-buffer))
6831 (set-buffer in-buffer)
6832 t))
6833 (setq selected (ignore-errors (gnus-summary-select-article)))
6834 (set-buffer obuf)
6835 (unless not-restore-window
6836 (set-window-configuration owin))
6837 (when (and (eq selected 'old)
6838 new-sum-point)
6839 (set-window-start (get-buffer-window (current-buffer))
6840 1)
6841 (set-window-point (get-buffer-window (current-buffer))
6842 (if (article-goto-body)
6843 (1- (point))
6844 (point))))
6845 (when (and (not not-restore-window)
6846 new-sum-point
6847 (window-live-p win)
6848 (with-current-buffer (window-buffer win)
6849 (derived-mode-p 'gnus-summary-mode)))
6850 (set-window-point win new-sum-point)
6851 (set-window-start win new-sum-start)
6852 (set-window-hscroll win new-sum-hscroll))))
6853 (set-window-configuration owin)
6854 (if err
6855 (signal (car err) (cdr err))
6856 (ding))))))))
6858 (defun gnus-article-read-summary-send-keys ()
6859 (interactive)
6860 (let ((unread-command-events (list (gnus-character-to-event ?S))))
6861 (gnus-article-read-summary-keys)))
6863 (defun gnus-article-describe-key (key)
6864 "Display documentation of the function invoked by KEY.
6865 KEY is a string or a vector."
6866 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6867 (read-key-sequence "Describe key: "))))
6868 (gnus-article-check-buffer)
6869 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6870 gnus-article-read-summary-send-keys))
6871 (with-current-buffer gnus-article-current-summary
6872 (setq unread-command-events
6873 (if (featurep 'xemacs)
6874 (append key nil)
6875 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6876 (list 'meta (- x 128))
6877 x))
6878 key)))
6879 (let ((cursor-in-echo-area t)
6880 gnus-pick-mode)
6881 (describe-key (read-key-sequence nil t))))
6882 (describe-key key)))
6884 (defun gnus-article-describe-key-briefly (key &optional insert)
6885 "Display documentation of the function invoked by KEY.
6886 KEY is a string or a vector."
6887 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6888 (read-key-sequence "Describe key: "))
6889 current-prefix-arg))
6890 (gnus-article-check-buffer)
6891 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6892 gnus-article-read-summary-send-keys))
6893 (with-current-buffer gnus-article-current-summary
6894 (setq unread-command-events
6895 (if (featurep 'xemacs)
6896 (append key nil)
6897 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6898 (list 'meta (- x 128))
6899 x))
6900 key)))
6901 (let ((cursor-in-echo-area t)
6902 gnus-pick-mode)
6903 (describe-key-briefly (read-key-sequence nil t) insert)))
6904 (describe-key-briefly key insert)))
6906 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6907 (defvar gnus-agent-summary-mode)
6908 (defvar gnus-draft-mode)
6909 (defvar help-xref-stack-item)
6910 (defvar help-xref-following)
6912 (defun gnus-article-describe-bindings (&optional prefix)
6913 "Show a list of all defined keys, and their definitions.
6914 The optional argument PREFIX, if non-nil, should be a key sequence;
6915 then we display only bindings that start with that prefix."
6916 (interactive)
6917 (gnus-article-check-buffer)
6918 (let ((keymap (copy-keymap gnus-article-mode-map))
6919 (map (copy-keymap gnus-article-send-map))
6920 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6921 parent agent draft)
6922 (define-key keymap "S" map)
6923 (define-key map [t] nil)
6924 (with-current-buffer gnus-article-current-summary
6925 (set-keymap-parent
6926 keymap
6927 (if (setq parent (keymap-parent gnus-article-mode-map))
6928 (prog1
6929 (setq parent (copy-keymap parent))
6930 (set-keymap-parent parent (current-local-map)))
6931 (current-local-map)))
6932 (set-keymap-parent map (key-binding "S"))
6933 (let (key def gnus-pick-mode)
6934 (while sumkeys
6935 (setq key (pop sumkeys))
6936 (cond ((and (vectorp key) (= (length key) 1)
6937 (consp (setq def (aref key 0)))
6938 (numberp (car def)) (numberp (cdr def)))
6939 (when (< (max (car def) (cdr def)) 128)
6940 (setq sumkeys
6941 (append (mapcar
6942 #'vector
6943 (nreverse (gnus-uncompress-range def)))
6944 sumkeys))))
6945 ((setq def (key-binding key))
6946 (unless (eq def 'undefined)
6947 (define-key keymap key def))))))
6948 (when (boundp 'gnus-agent-summary-mode)
6949 (setq agent gnus-agent-summary-mode))
6950 (when (boundp 'gnus-draft-mode)
6951 (setq draft gnus-draft-mode)))
6952 (with-temp-buffer
6953 (use-local-map keymap)
6954 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6955 (set (make-local-variable 'gnus-draft-mode) draft)
6956 (describe-bindings prefix))
6957 (let ((item `((lambda (prefix)
6958 (with-current-buffer ,(current-buffer)
6959 (gnus-article-describe-bindings prefix)))
6960 ,prefix)))
6961 ;; Loading `help-mode' here is necessary if `describe-bindings'
6962 ;; is replaced with something, e.g. `helm-descbinds'.
6963 (require 'help-mode)
6964 (with-current-buffer (let (help-xref-following) (help-buffer))
6965 (setq help-xref-stack-item item)))))
6967 (defun gnus-article-reply-with-original (&optional wide)
6968 "Start composing a reply mail to the current message.
6969 The text in the region will be yanked. If the region isn't active,
6970 the entire article will be yanked."
6971 (interactive)
6972 (let ((article (cdr gnus-article-current))
6973 contents)
6974 (if (not (gnus-region-active-p))
6975 (with-current-buffer gnus-summary-buffer
6976 (gnus-summary-reply (list (list article)) wide))
6977 (setq contents (buffer-substring (point) (mark t)))
6978 ;; Deactivate active regions.
6979 (when (and (boundp 'transient-mark-mode)
6980 transient-mark-mode)
6981 (setq mark-active nil))
6982 (with-current-buffer gnus-summary-buffer
6983 (gnus-summary-reply
6984 (list (list article contents)) wide)))))
6986 (defun gnus-article-wide-reply-with-original ()
6987 "Start composing a wide reply mail to the current message.
6988 The text in the region will be yanked. If the region isn't active,
6989 the entire article will be yanked."
6990 (interactive)
6991 (gnus-article-reply-with-original t))
6993 (defun gnus-article-followup-with-original ()
6994 "Compose a followup to the current article.
6995 The text in the region will be yanked. If the region isn't active,
6996 the entire article will be yanked."
6997 (interactive)
6998 (let ((article (cdr gnus-article-current))
6999 contents)
7000 (if (not (gnus-region-active-p))
7001 (with-current-buffer gnus-summary-buffer
7002 (gnus-summary-followup (list (list article))))
7003 (setq contents (buffer-substring (point) (mark t)))
7004 ;; Deactivate active regions.
7005 (when (and (boundp 'transient-mark-mode)
7006 transient-mark-mode)
7007 (setq mark-active nil))
7008 (with-current-buffer gnus-summary-buffer
7009 (gnus-summary-followup
7010 (list (list article contents)))))))
7012 (defun gnus-article-hide (&optional arg force)
7013 "Hide all the gruft in the current article.
7014 This means that signatures, cited text and (some) headers will be
7015 hidden.
7016 If given a prefix, show the hidden text instead."
7017 (interactive (append (gnus-article-hidden-arg) (list 'force)))
7018 (gnus-article-hide-headers arg)
7019 (gnus-article-hide-list-identifiers arg)
7020 (gnus-article-hide-citation-maybe arg force)
7021 (gnus-article-hide-signature arg))
7023 (defun gnus-check-group-server ()
7024 ;; Make sure the connection to the server is alive.
7025 (unless (gnus-server-opened
7026 (gnus-find-method-for-group gnus-newsgroup-name))
7027 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
7028 (gnus-request-group gnus-newsgroup-name t)))
7030 (declare-function nneething-get-file-name "nneething" (id))
7032 (defun gnus-request-article-this-buffer (article group)
7033 "Get an article and insert it into this buffer."
7034 (let (do-update-line sparse-header)
7035 (prog1
7036 (save-excursion
7037 (erase-buffer)
7038 (gnus-kill-all-overlays)
7039 (setq group (or group gnus-newsgroup-name))
7041 ;; Using `gnus-request-article' directly will insert the article into
7042 ;; `nntp-server-buffer' - so we'll save some time by not having to
7043 ;; copy it from the server buffer into the article buffer.
7045 ;; We only request an article by message-id when we do not have the
7046 ;; headers for it, so we'll have to get those.
7047 (when (stringp article)
7048 (gnus-read-header article))
7050 ;; If the article number is negative, that means that this article
7051 ;; doesn't belong in this newsgroup (possibly), so we find its
7052 ;; message-id and request it by id instead of number.
7053 (when (and (numberp article)
7054 gnus-summary-buffer
7055 (get-buffer gnus-summary-buffer)
7056 (gnus-buffer-exists-p gnus-summary-buffer))
7057 (with-current-buffer gnus-summary-buffer
7058 (let ((header (gnus-summary-article-header article)))
7059 (when (< article 0)
7060 (cond
7061 ((memq article gnus-newsgroup-sparse)
7062 ;; This is a sparse gap article.
7063 (setq do-update-line article)
7064 (setq article (mail-header-id header))
7065 (setq sparse-header (gnus-read-header article))
7066 (setq gnus-newsgroup-sparse
7067 (delq article gnus-newsgroup-sparse)))
7068 ((vectorp header)
7069 ;; It's a real article.
7070 (setq article (mail-header-id header)))
7071 (t
7072 ;; It is an extracted pseudo-article.
7073 (setq article 'pseudo)
7074 (gnus-request-pseudo-article header))))
7076 (let ((method (gnus-find-method-for-group
7077 gnus-newsgroup-name)))
7078 (when (and (eq (car method) 'nneething)
7079 (vectorp header))
7080 (let ((dir (nneething-get-file-name
7081 (mail-header-id header))))
7082 (when (and (stringp dir)
7083 (file-directory-p dir))
7084 (setq article 'nneething)
7085 (gnus-group-enter-directory dir))))))))
7087 (cond
7088 ;; Refuse to select canceled articles.
7089 ((and (numberp article)
7090 gnus-summary-buffer
7091 (get-buffer gnus-summary-buffer)
7092 (gnus-buffer-exists-p gnus-summary-buffer)
7093 (eq (cdr (with-current-buffer gnus-summary-buffer
7094 (assq article gnus-newsgroup-reads)))
7095 gnus-canceled-mark))
7096 nil)
7097 ;; We first check `gnus-original-article-buffer'.
7098 ((and (get-buffer gnus-original-article-buffer)
7099 (numberp article)
7100 (with-current-buffer gnus-original-article-buffer
7101 (and (equal (car gnus-original-article) group)
7102 (eq (cdr gnus-original-article) article))))
7103 ;; `insert-buffer-substring' would incorrectly use the
7104 ;; equivalent of string-make-multibyte which amount to decoding
7105 ;; with locale-coding-system, causing failure of
7106 ;; subsequent decoding.
7107 (insert (mm-string-to-multibyte
7108 (with-current-buffer gnus-original-article-buffer
7109 (buffer-substring (point-min) (point-max)))))
7110 'article)
7111 ;; Check the backlog.
7112 ((and gnus-keep-backlog
7113 (gnus-backlog-request-article group article (current-buffer)))
7114 'article)
7115 ;; Check asynchronous pre-fetch.
7116 ((gnus-async-request-fetched-article group article (current-buffer))
7117 (gnus-async-prefetch-next group article gnus-summary-buffer)
7118 (when (and (numberp article) gnus-keep-backlog)
7119 (gnus-backlog-enter-article group article (current-buffer)))
7120 'article)
7121 ;; Check the cache.
7122 ((and gnus-use-cache
7123 (numberp article)
7124 (gnus-cache-request-article article group))
7125 'article)
7126 ;; Check the agent cache.
7127 ((gnus-agent-request-article article group)
7128 'article)
7129 ;; Get the article and put into the article buffer.
7130 ((or (stringp article)
7131 (numberp article))
7132 (let ((gnus-override-method gnus-override-method)
7133 (methods (and (stringp article)
7134 (with-current-buffer gnus-summary-buffer
7135 (gnus-refer-article-methods))))
7136 (backend (car (gnus-find-method-for-group
7137 gnus-newsgroup-name)))
7138 result
7139 (inhibit-read-only t))
7140 (when (and (null gnus-override-method)
7141 methods)
7142 (setq gnus-override-method (pop methods)))
7143 (while (not result)
7144 (erase-buffer)
7145 (gnus-kill-all-overlays)
7146 (let ((gnus-newsgroup-name group))
7147 (gnus-check-group-server))
7148 (cond
7149 ((gnus-request-article article group (current-buffer))
7150 (when (numberp article)
7151 (gnus-async-prefetch-next group article
7152 gnus-summary-buffer)
7153 (when gnus-keep-backlog
7154 (gnus-backlog-enter-article
7155 group article (current-buffer)))
7156 (when (and gnus-agent
7157 (gnus-agent-group-covered-p group))
7158 (gnus-agent-store-article article group)))
7159 (setq result 'article))
7160 (methods
7161 (setq gnus-override-method (pop methods)))
7162 ((not (string-match "^400 "
7163 (nnheader-get-report backend)))
7164 ;; If we get 400 server disconnect, reconnect and
7165 ;; retry; otherwise, assume the article has expired.
7166 (setq result 'done))))
7167 (and (eq result 'article) 'article)))
7168 ;; It was a pseudo.
7169 (t article)))
7171 ;; Associate this article with the current summary buffer.
7172 (setq gnus-article-current-summary gnus-summary-buffer)
7174 ;; Take the article from the original article buffer
7175 ;; and place it in the buffer it's supposed to be in.
7176 (when (and (get-buffer gnus-article-buffer)
7177 (equal (buffer-name (current-buffer))
7178 (buffer-name (get-buffer gnus-article-buffer))))
7179 (save-excursion
7180 (if (get-buffer gnus-original-article-buffer)
7181 (set-buffer gnus-original-article-buffer)
7182 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
7183 (buffer-disable-undo)
7184 (setq major-mode 'gnus-original-article-mode)
7185 (setq buffer-read-only t))
7186 (let ((inhibit-read-only t))
7187 (erase-buffer)
7188 (insert-buffer-substring gnus-article-buffer))
7189 (setq gnus-original-article (cons group article)))
7191 ;; Decode charsets.
7192 (run-hooks 'gnus-article-decode-hook)
7193 ;; Mark article as decoded or not.
7194 (setq gnus-article-decoded-p gnus-article-decode-hook))
7196 ;; Update sparse articles.
7197 (when (and do-update-line
7198 (or (numberp article)
7199 (stringp article)))
7200 (let ((buf (current-buffer)))
7201 (set-buffer gnus-summary-buffer)
7202 (gnus-summary-update-article do-update-line sparse-header)
7203 (gnus-summary-goto-subject do-update-line nil t)
7204 (set-window-point (gnus-get-buffer-window (current-buffer) t)
7205 (point))
7206 (set-buffer buf))))))
7208 (defun gnus-block-private-groups (group)
7209 "Allows images in newsgroups to be shown, blocks images in all
7210 other groups."
7211 (if (or (gnus-news-group-p group)
7212 (gnus-member-of-valid 'global group))
7213 ;; Block nothing in news groups.
7214 nil
7215 ;; Block everything anywhere else.
7216 "."))
7218 (defun gnus-blocked-images ()
7219 (if (functionp gnus-blocked-images)
7220 (funcall gnus-blocked-images gnus-newsgroup-name)
7221 gnus-blocked-images))
7223 ;;;
7224 ;;; Article editing
7225 ;;;
7227 (defcustom gnus-article-edit-mode-hook nil
7228 "Hook run in article edit mode buffers."
7229 :group 'gnus-article-various
7230 :type 'hook)
7232 (defvar gnus-article-edit-done-function nil)
7234 (defvar gnus-article-edit-mode-map nil)
7236 ;; Should we be using derived.el for this?
7237 (unless gnus-article-edit-mode-map
7238 (setq gnus-article-edit-mode-map (make-keymap))
7239 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
7241 (gnus-define-keys gnus-article-edit-mode-map
7242 "\C-c?" describe-mode
7243 "\C-c\C-c" gnus-article-edit-done
7244 "\C-c\C-k" gnus-article-edit-exit
7245 "\C-c\C-f\C-t" message-goto-to
7246 "\C-c\C-f\C-o" message-goto-from
7247 "\C-c\C-f\C-b" message-goto-bcc
7248 ;;"\C-c\C-f\C-w" message-goto-fcc
7249 "\C-c\C-f\C-c" message-goto-cc
7250 "\C-c\C-f\C-s" message-goto-subject
7251 "\C-c\C-f\C-r" message-goto-reply-to
7252 "\C-c\C-f\C-n" message-goto-newsgroups
7253 "\C-c\C-f\C-d" message-goto-distribution
7254 "\C-c\C-f\C-f" message-goto-followup-to
7255 "\C-c\C-f\C-m" message-goto-mail-followup-to
7256 "\C-c\C-f\C-k" message-goto-keywords
7257 "\C-c\C-f\C-u" message-goto-summary
7258 "\C-c\C-f\C-i" message-insert-or-toggle-importance
7259 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
7260 "\C-c\C-b" message-goto-body
7261 "\C-c\C-i" message-goto-signature
7263 "\C-c\C-t" message-insert-to
7264 "\C-c\C-n" message-insert-newsgroups
7265 "\C-c\C-o" message-sort-headers
7266 "\C-c\C-e" message-elide-region
7267 "\C-c\C-v" message-delete-not-region
7268 "\C-c\C-z" message-kill-to-signature
7270 "\C-c\C-a" mml-attach-file
7271 "\C-a" message-beginning-of-line
7273 "\M-;" comment-region)
7275 (gnus-define-keys (gnus-article-edit-wash-map
7276 "\C-c\C-w" gnus-article-edit-mode-map)
7277 "f" gnus-article-edit-full-stops))
7279 (easy-menu-define
7280 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
7281 '("Field"
7282 ["Fetch To" message-insert-to t]
7283 ["Fetch Newsgroups" message-insert-newsgroups t]
7284 "----"
7285 ["To" message-goto-to t]
7286 ["From" message-goto-from t]
7287 ["Subject" message-goto-subject t]
7288 ["Cc" message-goto-cc t]
7289 ["Reply-To" message-goto-reply-to t]
7290 ["Summary" message-goto-summary t]
7291 ["Keywords" message-goto-keywords t]
7292 ["Newsgroups" message-goto-newsgroups t]
7293 ["Followup-To" message-goto-followup-to t]
7294 ["Mail-Followup-To" message-goto-mail-followup-to t]
7295 ["Distribution" message-goto-distribution t]
7296 ["Body" message-goto-body t]
7297 ["Signature" message-goto-signature t]))
7299 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
7300 "Major mode for editing articles.
7301 This is an extended text-mode.
7304 (make-local-variable 'gnus-article-edit-done-function)
7305 (make-local-variable 'gnus-prev-winconf)
7306 (set (make-local-variable 'font-lock-defaults)
7307 '(message-font-lock-keywords t))
7308 (set (make-local-variable 'mail-header-separator) "")
7309 (set (make-local-variable 'gnus-article-edit-mode) t)
7310 (easy-menu-add message-mode-field-menu message-mode-map)
7311 (mml-mode)
7312 (setq buffer-read-only nil)
7313 (buffer-enable-undo)
7314 (widen))
7316 (defun gnus-article-edit (&optional force)
7317 "Edit the current article.
7318 This will have permanent effect only in mail groups.
7319 If FORCE is non-nil, allow editing of articles even in read-only
7320 groups."
7321 (interactive "P")
7322 (when (and (not force)
7323 (gnus-group-read-only-p))
7324 (error "The current newsgroup does not support article editing"))
7325 (gnus-article-date-original)
7326 (gnus-article-edit-article
7327 'ignore
7328 `(lambda (no-highlight)
7329 'ignore
7330 (gnus-summary-edit-article-done
7331 ,(or (mail-header-references gnus-current-headers) "")
7332 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
7334 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
7335 "Start editing the contents of the current article buffer."
7336 (let ((winconf (current-window-configuration)))
7337 (set-buffer gnus-article-buffer)
7338 (let ((message-auto-save-directory
7339 ;; Don't associate the article buffer with a draft file.
7340 nil))
7341 (gnus-article-edit-mode))
7342 (funcall start-func)
7343 (set-buffer-modified-p nil)
7344 (gnus-configure-windows 'edit-article)
7345 (setq gnus-article-edit-done-function exit-func)
7346 (setq gnus-prev-winconf winconf)
7347 (unless quiet
7348 (gnus-message 6 "C-c C-c to end edits"))))
7350 (defun gnus-article-edit-done (&optional arg)
7351 "Update the article edits and exit."
7352 (interactive "P")
7353 (let ((func gnus-article-edit-done-function)
7354 (buf (current-buffer))
7355 (start (window-start))
7356 (winconf gnus-prev-winconf))
7357 (widen) ;; Widen it in case that users narrowed the buffer.
7358 (funcall func arg)
7359 (set-buffer buf)
7360 ;; The cache and backlog have to be flushed somewhat.
7361 (when gnus-keep-backlog
7362 (gnus-backlog-remove-article
7363 (car gnus-article-current) (cdr gnus-article-current)))
7364 ;; Flush original article as well.
7365 (gnus-flush-original-article-buffer)
7366 (when gnus-use-cache
7367 (gnus-cache-update-article
7368 (car gnus-article-current) (cdr gnus-article-current)))
7369 ;; We remove all text props from the article buffer.
7370 (kill-all-local-variables)
7371 (set-text-properties (point-min) (point-max) nil)
7372 (gnus-article-mode)
7373 (set-window-configuration winconf)
7374 (set-buffer buf)
7375 (set-window-start (get-buffer-window buf) start)
7376 (set-window-point (get-buffer-window buf) (point)))
7377 (gnus-summary-show-article))
7379 (defun gnus-flush-original-article-buffer ()
7380 (when (get-buffer gnus-original-article-buffer)
7381 (with-current-buffer gnus-original-article-buffer
7382 (setq gnus-original-article nil))))
7384 (defun gnus-article-edit-exit ()
7385 "Exit the article editing without updating."
7386 (interactive)
7387 (when (or (not (buffer-modified-p))
7388 (yes-or-no-p "Article modified; kill anyway? "))
7389 (let ((curbuf (current-buffer))
7390 (p (point))
7391 (window-start (window-start)))
7392 (erase-buffer)
7393 (if (gnus-buffer-live-p gnus-original-article-buffer)
7394 (insert-buffer-substring gnus-original-article-buffer))
7395 (let ((winconf gnus-prev-winconf))
7396 (kill-all-local-variables)
7397 (gnus-article-mode)
7398 (set-window-configuration winconf)
7399 ;; Tippy-toe some to make sure that point remains where it was.
7400 (save-current-buffer
7401 (set-buffer curbuf)
7402 (set-window-start (get-buffer-window (current-buffer)) window-start)
7403 (goto-char p))))
7404 (gnus-summary-show-article)))
7406 (defun gnus-article-edit-full-stops ()
7407 "Interactively repair spacing at end of sentences."
7408 (interactive)
7409 (save-excursion
7410 (goto-char (point-min))
7411 (search-forward-regexp "^$" nil t)
7412 (let ((case-fold-search nil))
7415 ;;;
7416 ;;; Article highlights
7417 ;;;
7419 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
7421 ;;; Internal Variables:
7423 (defcustom gnus-button-url-regexp
7424 (concat
7428 (if (string-match "[[:digit:]]" "1") ;; Support POSIX?
7430 (punct "!?:;.,"))
7431 (concat
7433 ;; Match paired parentheses, e.g. in Wikipedia URLs:
7434 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
7435 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)"
7438 "[" chars punct "]+" "[" chars "]"
7440 (concat ;; XEmacs 21.4 doesn't support POSIX.
7444 "Regular expression that matches URLs."
7445 :version "24.4"
7446 :group 'gnus-article-buttons
7447 :type 'regexp)
7449 (defcustom gnus-button-valid-fqdn-regexp
7450 message-valid-fqdn-regexp
7451 "Regular expression that matches a valid FQDN."
7452 :version "22.1"
7453 :group 'gnus-article-buttons
7454 :type 'regexp)
7456 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
7457 (defcustom gnus-button-valid-localpart-regexp
7459 "Regular expression that matches a localpart of mail addresses or MIDs."
7460 :version "22.1"
7461 :group 'gnus-article-buttons
7462 :type 'regexp)
7464 (defcustom gnus-button-man-handler 'manual-entry
7465 "Function to use for displaying man pages.
7466 The function must take at least one argument with a string naming the
7467 man page."
7468 :version "22.1"
7469 :type '(choice (function-item :tag "Man" manual-entry)
7470 (function-item :tag "Woman" woman)
7471 (function :tag "Other"))
7472 :group 'gnus-article-buttons)
7474 (defcustom gnus-button-mid-or-mail-regexp
7476 gnus-button-valid-fqdn-regexp
7478 "Regular expression that matches a message ID or a mail address."
7479 :version "22.1"
7480 :group 'gnus-article-buttons
7481 :type 'regexp)
7483 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
7485 Strings like this can be either a message ID or a mail address. If it is one
7486 of the symbols `mid' or `mail', Gnus will always assume that the string is a
7487 message ID or a mail address, respectively. If this variable is set to the
7488 symbol `ask', always query the user what do do. If it is a function, this
7489 function will be called with the string as its only argument. The function
7490 must return `mid', `mail', `invalid' or `ask'."
7491 :version "22.1"
7492 :group 'gnus-article-buttons
7493 :type '(choice (function-item :tag "Heuristic function"
7494 gnus-button-mid-or-mail-heuristic)
7495 (const ask)
7496 (const mid)
7497 (const mail)))
7499 (defcustom gnus-button-mid-or-mail-heuristic-alist
7501 (-10.0 . "#")
7504 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7505 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7506 (-1.0 . "^[^a-z]+@")
7507 ;;
7509 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7510 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7512 ;;
7513 (-2.0 . "^[0-9]")
7514 (-1.0 . "^[0-9][0-9]")
7515 ;;
7516 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7517 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7518 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7519 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7520 ;;
7521 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7522 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7523 ;; "[0-9]{8,}.*\@"
7524 (-3.0
7525 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7526 ;; "[0-9]{12,}.*\@"
7527 ;; compensation for TDMA dated mail addresses:
7528 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7529 ;;
7531 (-20.0 . "^slrn")
7532 (-20.0 . "^Pine")
7534 (-20.0 . "_-_") ;; Subject change in thread
7535 ;;
7539 ;;
7540 ;; (5.0 . "") ;; $local_part_len <= 7
7541 (10.0 . "^[^0-9]+@")
7542 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7543 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7544 (3.0 . "\@stud")
7545 ;;
7546 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7547 ;;
7548 (0.5 . "^[A-Z][a-z]")
7549 (0.5 . "^[A-Z][a-z][a-z]")
7550 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7551 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7552 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
7554 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7555 address. The REGEXP is processed with `case-fold-search' set to nil."
7556 :version "22.1"
7557 :group 'gnus-article-buttons
7558 :type '(repeat (cons (number :tag "Rate")
7559 (regexp :tag "Regexp"))))
7561 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7562 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7563 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7564 address, `ask' if unsure and `invalid' if the string is invalid."
7565 (let ((case-fold-search nil)
7566 (list gnus-button-mid-or-mail-heuristic-alist)
7567 (result 0) rate regexp lpartlen elem)
7568 (setq lpartlen
7570 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7571 ;; Certain special cases...
7572 (when (string-match
7573 (concat
7577 mid-or-mail)
7578 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7579 (setq result 'mail))
7581 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7582 (setq result 'invalid))
7583 ;; Nothing more to do, if result is not a number here...
7584 (when (numberp result)
7585 (while list
7586 (setq elem (car list)
7587 rate (car elem)
7588 regexp (cdr elem)
7589 list (cdr list))
7590 (when (string-match regexp mid-or-mail)
7591 (setq result (+ result rate))
7592 (gnus-message
7593 9 "`%s' matched `%s', rate `%s', result `%s'."
7594 mid-or-mail regexp rate result)))
7595 (when (<= lpartlen 7)
7596 (setq result (+ result 5.0))
7597 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7598 mid-or-mail result))
7599 (when (>= lpartlen 12)
7600 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7601 (cond
7602 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7603 ;; Long local part should contain realname if e-mail address,
7604 ;; too many digits: message-id.
7605 ;; $score -= 5.0 + 0.1 * $local_part_len;
7606 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7607 (setq result (+ result rate))
7608 (gnus-message
7609 9 "Many digits in `%s', rate `%s', result `%s'."
7610 mid-or-mail rate result))
7611 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
7612 mid-or-mail)
7613 ;; Too few vowels [^aeiouy]{4,}.*\@
7614 (setq result (+ result -5.0))
7615 (gnus-message
7616 9 "Few vowels in `%s', rate `%s', result `%s'."
7617 mid-or-mail -5.0 result))
7618 (t
7619 (setq result (+ result 5.0))
7620 (gnus-message
7621 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7622 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7623 ;; Maybe we should make this a customizable alist: (condition . 'result)
7624 (cond
7625 ((symbolp result) result)
7626 ;; Now convert number into proper results:
7627 ((< result -10.0) 'mid)
7628 ((> result 10.0) 'mail)
7629 (t 'ask))))
7631 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7632 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7633 (url-mid (concat "news" ":" mid-or-mail))
7634 (url-mailto (concat "mailto" ":" mid-or-mail)))
7635 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7636 (when (fboundp pref)
7637 (setq guessed
7638 ;; get rid of surrounding angles...
7639 (funcall pref
7641 (if (or (eq 'mid guessed) (eq 'mail guessed))
7642 (setq pref guessed)
7643 (setq pref 'ask)))
7644 (if (eq pref 'ask)
7645 (save-window-excursion
7646 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7647 (setq pref 'mail)
7648 (setq pref 'mid))))
7649 (cond ((eq pref 'mid)
7650 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7651 (gnus-button-handle-news url-mid))
7652 ((eq pref 'mail)
7653 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7654 (gnus-url-mailto url-mailto))
7655 (t (gnus-message 3 "Invalid string.")))))
7657 (defun gnus-button-handle-custom (fun arg)
7658 "Call function FUN on argument ARG.
7659 Both FUN and ARG are supposed to be strings. ARG will be passed
7660 as a symbol to FUN."
7661 (funcall (intern fun)
7662 (if (string-match "^customize-apropos" fun)
7663 arg
7664 (intern arg))))
7668 (defun gnus-button-handle-describe-function (url)
7669 "Call `describe-function' when pushing the corresponding URL button."
7670 (describe-function
7671 (intern
7672 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7674 (defun gnus-button-handle-describe-variable (url)
7675 "Call `describe-variable' when pushing the corresponding URL button."
7676 (describe-variable
7677 (intern
7678 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7680 (defun gnus-button-handle-symbol (url)
7681 "Display help on variable or function.
7682 Calls `describe-variable' or `describe-function'."
7683 (let ((sym (intern url)))
7684 (cond
7685 ((fboundp sym) (describe-function sym))
7686 ((boundp sym) (describe-variable sym))
7687 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7689 (defun gnus-button-handle-describe-key (url)
7690 "Call `describe-key' when pushing the corresponding URL button."
7691 (let* ((key-string
7692 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
7693 (keys (ignore-errors (eval `(kbd ,key-string)))))
7694 (if keys
7695 (describe-key keys)
7696 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7698 (defun gnus-button-handle-apropos (url)
7699 "Call `apropos' when pushing the corresponding URL button."
7700 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7702 (defun gnus-button-handle-apropos-command (url)
7703 "Call `apropos' when pushing the corresponding URL button."
7704 (apropos-command
7705 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7707 (defun gnus-button-handle-apropos-variable (url)
7708 "Call `apropos' when pushing the corresponding URL button."
7709 (funcall
7710 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
7711 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7713 (defun gnus-button-handle-apropos-documentation (url)
7714 "Call `apropos' when pushing the corresponding URL button."
7715 (funcall
7716 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
7717 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7719 (defun gnus-button-handle-library (url)
7720 "Call `locate-library' when pushing the corresponding URL button."
7721 (gnus-message 9 "url=`%s'" url)
7722 (let* ((lib (locate-library url))
7723 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
7724 (if (not lib)
7725 (gnus-message 1 "Cannot locale library `%s'." url)
7726 (find-file-read-only file))))
7728 (defcustom gnus-button-man-level 5
7729 "*Integer that says how many man-related buttons Gnus will show.
7730 The higher the number, the more buttons will appear and the more false
7731 positives are possible. Note that you can set this variable local to
7732 specific groups. Setting it higher in Unix groups is probably a good idea.
7733 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7734 how to set variables in specific groups."
7735 :version "22.1"
7736 :group 'gnus-article-buttons
7737 :link '(custom-manual "(gnus)Group Parameters")
7738 :type 'integer)
7740 (defcustom gnus-button-emacs-level 5
7741 "*Integer that says how many emacs-related buttons Gnus will show.
7742 The higher the number, the more buttons will appear and the more false
7743 positives are possible. Note that you can set this variable local to
7744 specific groups. Setting it higher in Emacs or Gnus related groups is
7745 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7746 `gnus-parameters' on how to set variables in specific groups."
7747 :version "22.1"
7748 :group 'gnus-article-buttons
7749 :link '(custom-manual "(gnus)Group Parameters")
7750 :type 'integer)
7752 (defcustom gnus-button-message-level 5
7753 "*Integer that says how many buttons for news or mail messages will appear.
7754 The higher the number, the more buttons will appear and the more false
7755 positives are possible."
7756 ;; mail addresses, MIDs, URLs for news, ...
7757 :version "22.1"
7758 :group 'gnus-article-buttons
7759 :type 'integer)
7761 (defcustom gnus-button-browse-level 5
7762 "*Integer that says how many buttons for browsing will appear.
7763 The higher the number, the more buttons will appear and the more false
7764 positives are possible."
7765 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7766 :version "22.1"
7767 :group 'gnus-article-buttons
7768 :type 'integer)
7770 (defcustom gnus-button-alist
7772 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7775 0 t gnus-button-handle-news 2)
7777 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7779 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7780 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7782 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7784 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7786 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7788 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7789 ;; RFC 2368 (The mailto URL scheme)
7791 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7793 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7794 ;; Info Konqueror style <info:/foo/bar baz>.
7795 ;; Must come before " Gnus home-grown style".
7797 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7798 ;; Info, Gnus home-grown style (deprecated) <info://foo/bar+baz>
7800 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7801 ;; Info GNOME style <info:foo#bar_baz>
7803 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7804 ;; Info KDE style <info:(foo)bar baz>
7806 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7808 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7809 ("\\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,]*\\)\\)?"
7810 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7811 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7812 ;; This is custom
7814 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7815 ;; Emacs help commands
7817 ;; regexp doesn't match arguments containing ` '.
7818 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7820 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7822 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7824 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7825 ;; The following entries may lead to many false positives so don't enable
7826 ;; them by default (use a high button level).
7828 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7829 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7831 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7833 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7835 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7837 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7839 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7841 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7843 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7845 ;; Unlike the other regexps we really have to require quoting
7846 ;; here to determine where it ends.
7847 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7848 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7850 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7851 ;; RFC 2396 (2.4.3., delims) ...
7853 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7854 ;; Raw URLs.
7855 (gnus-button-url-regexp
7856 0 (>= gnus-button-browse-level 0) browse-url 0)
7857 ;; man pages
7859 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7860 gnus-button-handle-man 1)
7861 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7863 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7864 gnus-button-handle-man 1)
7865 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7866 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7868 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7869 ;; Recognizing patches to .el files. This is somewhat obscure,
7870 ;; but considering the percentage of Gnus users who hack Emacs
7871 ;; Lisp files...
7873 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7875 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7876 ;; MID or mail: To avoid too many false positives we don't try to catch
7877 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7878 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7879 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7880 ;; so that non-ambiguous entries (see above) match first.
7881 (gnus-button-mid-or-mail-regexp
7882 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7883 "*Alist of regexps matching buttons in article bodies.
7885 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7886 REGEXP: is the string (case insensitive) matching text around the button (can
7887 also be Lisp expression evaluating to a string),
7888 BUTTON: is the number of the regexp grouping actually matching the button,
7889 FORM: is a Lisp expression which must eval to true for the button to
7890 be added,
7891 CALLBACK: is the function to call when the user push this button, and each
7892 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7894 CALLBACK can also be a variable, in that case the value of that
7895 variable it the real callback function."
7896 :group 'gnus-article-buttons
7897 :type '(repeat (list (choice regexp variable sexp)
7898 (integer :tag "Button")
7899 (sexp :tag "Form")
7900 (function :tag "Callback")
7901 (repeat :tag "Par"
7902 :inline t
7903 (integer :tag "Regexp group")))))
7904 (put 'gnus-button-alist 'risky-local-variable t)
7906 (defcustom gnus-header-button-alist
7908 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7910 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7912 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7913 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7914 0 (>= gnus-button-browse-level 0) browse-url 0)
7915 ("^Subject:" gnus-button-url-regexp
7916 0 (>= gnus-button-browse-level 0) browse-url 0)
7917 ("^[^:]+:" gnus-button-url-regexp
7918 0 (>= gnus-button-browse-level 0) browse-url 0)
7919 ("^OpenPGP:.*url=" gnus-button-url-regexp
7920 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7922 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7924 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7925 "*Alist of headers and regexps to match buttons in article heads.
7927 This alist is very similar to `gnus-button-alist', except that each
7928 alist has an additional HEADER element first in each entry:
7930 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7932 HEADER is a regexp to match a header. For a fuller explanation, see
7933 `gnus-button-alist'."
7934 :group 'gnus-article-buttons
7935 :group 'gnus-article-headers
7936 :type '(repeat (list (regexp :tag "Header")
7937 (choice regexp variable)
7938 (integer :tag "Button")
7939 (sexp :tag "Form")
7940 (function :tag "Callback")
7941 (repeat :tag "Par"
7942 :inline t
7943 (integer :tag "Regexp group")))))
7944 (put 'gnus-header-button-alist 'risky-local-variable t)
7946 ;;; Commands:
7948 (defun gnus-article-push-button (event)
7949 "Check text under the mouse pointer for a callback function.
7950 If the text under the mouse pointer has a `gnus-callback' property,
7951 call it with the value of the `gnus-data' text property."
7952 (interactive "e")
7953 (set-buffer (window-buffer (posn-window (event-start event))))
7954 (let* ((pos (posn-point (event-start event)))
7955 (data (get-text-property pos 'gnus-data))
7956 (fun (get-text-property pos 'gnus-callback)))
7957 (goto-char pos)
7958 (when fun
7959 (funcall fun data))))
7961 (defun gnus-article-press-button ()
7962 "Check text at point for a callback function.
7963 If the text at point has a `gnus-callback' property,
7964 call it with the value of the `gnus-data' text property."
7965 (interactive)
7966 (let ((data (get-text-property (point) 'gnus-data))
7967 (fun (get-text-property (point) 'gnus-callback)))
7968 (when fun
7969 (funcall fun data))))
7971 (defun gnus-article-highlight (&optional force)
7972 "Highlight current article.
7973 This function calls `gnus-article-highlight-headers',
7974 `gnus-article-highlight-citation',
7975 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7976 do the highlighting. See the documentation for those functions."
7977 (interactive (list 'force))
7978 (gnus-article-highlight-headers)
7979 (gnus-article-highlight-citation force)
7980 (gnus-article-highlight-signature)
7981 (gnus-article-add-buttons)
7982 (gnus-article-add-buttons-to-head))
7984 (defun gnus-article-highlight-some (&optional _force)
7985 "Highlight current article.
7986 This function calls `gnus-article-highlight-headers',
7987 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7988 do the highlighting. See the documentation for those functions."
7989 (interactive (list 'force))
7990 (gnus-article-highlight-headers)
7991 (gnus-article-highlight-signature)
7992 (gnus-article-add-buttons))
7994 (defun gnus-article-highlight-headers ()
7995 "Highlight article headers as specified by `gnus-header-face-alist'."
7996 (interactive)
7997 (gnus-with-article-headers
7998 (let (regexp header-face field-face from hpoints fpoints)
7999 (dolist (entry gnus-header-face-alist)
8000 (goto-char (point-min))
8002 (if (string-equal "" (nth 0 entry))
8004 (nth 0 entry))
8006 header-face (nth 1 entry)
8007 field-face (nth 2 entry))
8008 (while (and (re-search-forward regexp nil t)
8009 (not (eobp)))
8010 (beginning-of-line)
8011 (setq from (point))
8012 (unless (search-forward ":" nil t)
8013 (forward-char 1))
8014 (when (and header-face
8015 (not (memq (point) hpoints)))
8016 (push (point) hpoints)
8017 (gnus-put-text-property from (point) 'face header-face))
8018 (when (and field-face
8019 (not (memq (setq from (point)) fpoints)))
8020 (push from fpoints)
8022 (forward-char -2)
8023 (goto-char (point-max)))
8024 (gnus-put-text-property from (point) 'face field-face)))))))
8026 (defun gnus-article-highlight-signature ()
8027 "Highlight the signature in an article.
8028 It does this by highlighting everything after
8029 `gnus-signature-separator' using the face `gnus-signature'."
8030 (interactive)
8031 (gnus-with-article-buffer
8032 (let ((inhibit-point-motion-hooks t))
8033 (save-restriction
8034 (when (and gnus-signature-face
8035 (gnus-article-narrow-to-signature))
8036 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max) nil t)
8037 'face gnus-signature-face)
8038 (widen)
8039 (gnus-article-search-signature)
8040 (let ((start (match-beginning 0))
8041 (end (set-marker (make-marker) (1+ (match-end 0)))))
8042 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
8043 end)))))))
8045 (defun gnus-button-in-region-p (b e prop)
8046 "Say whether PROP exists in the region."
8047 (text-property-not-all b e prop nil))
8049 (defun gnus-article-add-buttons ()
8050 "Find external references in the article and make buttons of them.
8052 specified by `gnus-button-alist'."
8053 (interactive)
8054 (gnus-with-article-buffer
8055 (let ((inhibit-point-motion-hooks t)
8056 (case-fold-search t)
8057 (alist gnus-button-alist)
8058 beg entry regexp)
8059 ;; We skip the headers.
8060 (article-goto-body)
8061 (setq beg (point))
8062 (while (setq entry (pop alist))
8063 (setq regexp (eval (car entry)))
8064 (goto-char beg)
8065 (while (re-search-forward regexp nil t)
8066 (let ((start (match-beginning (nth 1 entry)))
8067 (end (match-end (nth 1 entry)))
8068 (from (match-beginning 0)))
8069 (when (and (eval (nth 2 entry))
8070 (not (gnus-button-in-region-p
8071 start end 'gnus-callback)))
8072 ;; That optional form returned non-nil, so we add the
8073 ;; button.
8074 (setq from (set-marker (make-marker) from))
8075 (unless (and (eq (car entry) 'gnus-button-url-regexp)
8076 (gnus-article-extend-url-button from start end))
8077 (gnus-article-add-button start end
8078 'gnus-button-push (list from entry))
8079 (gnus-put-text-property
8080 start end
8081 'gnus-string (buffer-substring-no-properties
8082 start end))))))))))
8084 (defun gnus-article-extend-url-button (beg start end)
8085 "Extend url button if url is folded into two or more lines.
8086 Return non-nil if button is extended. BEG is a marker that points to
8087 the beginning position of a text containing url. START and END are
8088 the endpoints of a url button before it is extended. The concatenated
8089 url is put as the `gnus-button-url' overlay property on the button."
8090 (let ((opoint (point))
8091 (points (list start end))
8092 url delim regexp)
8093 (prog1
8094 (when (and (progn
8095 (goto-char end)
8097 (progn
8098 (goto-char start)
8099 (string-match
8101 (buffer-substring (point-at-bol) start)))
8102 (progn
8103 (setq url (list (buffer-substring start end))
8105 (beginning-of-line)
8106 (setq regexp (concat
8107 (when (and (looking-at
8108 message-cite-prefix-regexp)
8109 (< (match-end 0) start))
8110 (regexp-quote (match-string 0)))
8111 "\
8114 (while (progn
8115 (forward-line 1)
8116 (and (looking-at regexp)
8117 (prog1
8118 (match-beginning 1)
8119 (push (or (match-string 2)
8120 (match-string 1))
8121 url)
8122 (push (setq end (or (match-end 2)
8123 (match-end 1)))
8124 points)
8125 (push (or (match-beginning 2)
8126 (match-beginning 1))
8127 points)))))
8128 (match-beginning 2)))
8129 (let (gnus-article-mouse-face widget-mouse-face)
8130 (while points
8131 (gnus-article-add-button (pop points) (pop points)
8132 'gnus-button-push
8133 (list beg (assq 'gnus-button-url-regexp
8134 gnus-button-alist)))))
8135 (let ((overlay (gnus-make-overlay start end)))
8136 (gnus-overlay-put overlay 'evaporate t)
8137 (gnus-overlay-put overlay 'gnus-button-url
8138 (list (mapconcat 'identity (nreverse url) "")))
8139 (when gnus-article-mouse-face
8140 (gnus-overlay-put overlay 'mouse-face gnus-article-mouse-face)))
8141 t)
8142 (goto-char opoint))))
8144 ;; Add buttons to the head of an article.
8145 (defun gnus-article-add-buttons-to-head ()
8146 "Add buttons to the head of the article."
8147 (interactive)
8148 (gnus-with-article-headers
8149 (let (beg end)
8150 (dolist (entry gnus-header-button-alist)
8151 ;; Each alist entry.
8152 (goto-char (point-min))
8153 (while (re-search-forward (car entry) nil t)
8154 ;; Each header matching the entry.
8155 (setq beg (match-beginning 0))
8157 (match-beginning 0))
8158 (point-max)))
8159 (goto-char beg)
8160 (while (re-search-forward (eval (nth 1 entry)) end t)
8161 ;; Each match within a header.
8162 (let* ((entry (cdr entry))
8163 (start (match-beginning (nth 1 entry)))
8164 (end (match-end (nth 1 entry)))
8165 (form (nth 2 entry)))
8166 (goto-char (match-end 0))
8167 (when (eval form)
8168 (gnus-article-add-button
8169 start end (nth 3 entry)
8170 (buffer-substring (match-beginning (nth 4 entry))
8171 (match-end (nth 4 entry)))))))
8172 (goto-char end))))))
8174 ;;; External functions:
8176 (defun gnus-article-add-button (from to fun &optional data text)
8177 "Create a button between FROM and TO with callback FUN and data DATA."
8178 (when gnus-article-button-face
8179 (gnus-overlay-put (gnus-make-overlay from to nil t)
8180 'face gnus-article-button-face))
8181 (gnus-add-text-properties
8182 from to
8183 (nconc (and gnus-article-mouse-face
8184 (list gnus-mouse-face-prop gnus-article-mouse-face))
8185 (list 'gnus-callback fun)
8186 (and data (list 'gnus-data data))))
8187 (widget-convert-button 'link from to :action 'gnus-widget-press-button
8188 :help-echo (or text "Follow the link")
8189 :keymap gnus-url-button-map
8190 :button-keymap gnus-widget-button-keymap))
8192 (defun gnus-article-copy-string ()
8193 "Copy the string in the button to the kill ring."
8194 (interactive)
8195 (gnus-article-check-buffer)
8196 (let ((data (get-text-property (point) 'gnus-string)))
8197 (when data
8198 (with-temp-buffer
8199 (insert data)
8200 (copy-region-as-kill (point-min) (point-max))
8201 (message "Copied %s" data)))))
8203 ;;; Internal functions:
8205 (defun gnus-article-set-globals ()
8206 (with-current-buffer gnus-summary-buffer
8207 (gnus-set-global-variables)))
8209 (defun gnus-signature-toggle (end)
8210 (gnus-with-article-buffer
8211 (let ((inhibit-point-motion-hooks t))
8212 (if (text-property-any end (point-max) 'article-type 'signature)
8213 (progn
8214 (gnus-delete-wash-type 'signature)
8215 (gnus-remove-text-properties-when
8216 'article-type 'signature end (point-max)
8217 (cons 'article-type (cons 'signature
8218 gnus-hidden-properties))))
8219 (gnus-add-wash-type 'signature)
8220 (gnus-add-text-properties-when
8221 'article-type nil end (point-max)
8222 (cons 'article-type (cons 'signature
8223 gnus-hidden-properties)))))
8224 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
8225 (gnus-set-mode-line 'article))))
8227 (defun gnus-button-push (marker-and-entry)
8228 ;; Push button starting at MARKER.
8229 (save-excursion
8230 (let* ((marker (car marker-and-entry))
8231 (entry (cadr marker-and-entry))
8232 (regexp (car entry))
8233 (inhibit-point-motion-hooks t))
8234 (goto-char marker)
8235 ;; This is obviously true, or something bad is happening :)
8236 ;; But we need it to have the match-data
8237 (when (looking-at (or (if (symbolp regexp)
8238 (symbol-value regexp)
8239 regexp)))
8240 (let ((fun (nth 3 entry))
8241 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
8242 (get-char-property marker 'gnus-button-url))
8243 (mapcar (lambda (group)
8244 (let ((string (match-string group)))
8245 (set-text-properties
8246 0 (length string) nil string)
8247 string))
8248 (nthcdr 4 entry)))))
8250 (cond
8251 ((fboundp fun)
8252 (apply fun args))
8253 ((and (boundp fun)
8254 (fboundp (symbol-value fun)))
8255 (apply (symbol-value fun) args))
8256 (t
8257 (gnus-message 1 "You must define `%S' to use this button"
8258 (cons fun args)))))))))
8260 (defun gnus-parse-news-url (url)
8261 (let (scheme server port group message-id articles)
8262 (with-temp-buffer
8263 (insert url)
8264 (goto-char (point-min))
8266 (setq scheme (match-string 1))
8267 (goto-char (match-end 0)))
8269 (setq server (match-string 1))
8270 (setq port (if (stringp (match-string 3))
8271 (string-to-number (match-string 3))
8272 (match-string 3)))
8273 (goto-char (match-end 0)))
8275 (cond
8277 (setq message-id (match-string 1)))
8279 (setq group (match-string 1)
8280 articles (split-string (match-string 2) "-")))
8282 (setq group (match-string 1)))
8283 (t
8284 (error "Unknown news URL syntax"))))
8285 (list scheme server port group message-id articles)))
8287 (defvar nntp-port-number)
8289 (defun gnus-button-handle-news (url)
8290 "Fetch a news URL."
8291 (destructuring-bind (_scheme server port group message-id _articles)
8292 (gnus-parse-news-url url)
8293 (cond
8294 (message-id
8295 (with-current-buffer gnus-summary-buffer
8296 (if server
8297 (let ((gnus-refer-article-method
8298 (nconc (list (list 'nntp server))
8299 gnus-refer-article-method))
8300 (nntp-port-number (or port "nntp")))
8301 (gnus-message 7 "Fetching %s with %s"
8302 message-id gnus-refer-article-method)
8303 (gnus-summary-refer-article message-id))
8304 (gnus-summary-refer-article message-id))))
8305 (group
8306 (gnus-button-fetch-group url)))))
8308 (defun gnus-button-patch (library line)
8309 "Visit an Emacs Lisp library LIBRARY on line LINE."
8310 (interactive)
8311 (let ((file (locate-library (file-name-nondirectory library))))
8312 (unless file
8313 (error "Couldn't find library %s" library))
8314 (find-file file)
8315 (goto-char (point-min))
8316 (forward-line (1- (string-to-number line)))))
8318 (defun gnus-button-handle-man (url)
8319 "Fetch a man page."
8320 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8321 (when (eq gnus-button-man-handler 'woman)
8323 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8324 (funcall gnus-button-man-handler url))
8326 (defun gnus-button-handle-info-url (url)
8327 "Fetch an info URL."
8328 (setq url (mm-subst-char-in-string ?+ ?\ url))
8329 (cond
8331 (gnus-info-find-node
8332 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
8333 "Gnus")
8334 ")" (gnus-url-unhex-string (match-string 2 url)))))
8336 (setq url
8337 (gnus-replace-in-string
8339 (gnus-info-find-node url))
8340 (t (error "Can't parse %s" url))))
8342 (defun gnus-button-handle-info-url-gnome (url)
8343 "Fetch GNOME style info URL."
8344 (setq url (mm-subst-char-in-string ?_ ?\ url))
8346 (gnus-info-find-node
8347 (concat "("
8348 (gnus-url-unhex-string
8349 (match-string 1 url))
8350 ")"
8351 (or (gnus-url-unhex-string
8352 (match-string 2 url))
8353 "Top")))
8354 (error "Can't parse %s" url)))
8356 (defun gnus-button-handle-info-url-kde (url)
8357 "Fetch KDE style info URL."
8358 (gnus-info-find-node (gnus-url-unhex-string url)))
8360 ;; (info) will autoload info.el
8361 (declare-function Info-menu "info" (menu-item &optional fork))
8362 (declare-function Info-index-next "info" (num))
8364 (defun gnus-button-handle-info-keystrokes (url)
8365 "Call `info' when pushing the corresponding URL button."
8366 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
8367 (let (node indx comma)
8368 (if (string-match
8373 url)
8374 (setq node (match-string 2 url)
8375 indx (match-string 3 url))
8376 (error "Can't parse %s" url))
8377 (info)
8378 (Info-directory)
8379 (Info-menu node)
8380 (when (> (length indx) 0)
8383 indx)
8384 (setq comma (match-string 2 indx))
8385 (setq indx (match-string 1 indx))
8386 (Info-index indx)
8387 (when comma
8388 (dotimes (i (with-temp-buffer
8389 (insert comma)
8390 ;; Note: the XEmacs version of `how-many' takes
8391 ;; no optional argument.
8392 (goto-char (point-min))
8393 (how-many ",")))
8394 (Info-index-next 1)))
8395 nil)))
8397 (autoload 'pgg-snarf-keys-region "pgg")
8398 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
8399 (declare-function pgg-display-output-buffer "pgg" (start end status))
8401 (defun gnus-button-openpgp (url)
8402 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
8403 (with-temp-buffer
8404 (mm-url-insert-file-contents-external url)
8405 (pgg-snarf-keys-region (point-min) (point-max))
8406 (pgg-display-output-buffer nil nil nil)))
8408 (defun gnus-button-message-id (message-id)
8409 "Fetch MESSAGE-ID."
8410 (with-current-buffer gnus-summary-buffer
8411 (gnus-summary-refer-article message-id)))
8413 (defun gnus-button-fetch-group (address &rest _ignore)
8414 "Fetch GROUP specified by ADDRESS."
8416 address)
8417 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
8418 ;; for nntp:// and news://
8419 (setq address (match-string 3 address)))
8420 (if (not (string-match "[:/]" address))
8421 ;; This is just a simple group url.
8422 (gnus-group-read-ephemeral-group address gnus-select-method)
8423 (if (not
8424 (string-match
8426 address))
8427 (error "Can't parse %s" address)
8428 (gnus-group-read-ephemeral-group
8429 (match-string 4 address)
8430 `(nntp ,(match-string 1 address)
8431 (nntp-address ,(match-string 1 address))
8432 (nntp-port-number ,(if (match-end 3)
8433 (match-string 3 address)
8434 "nntp")))
8435 nil nil nil
8436 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
8438 (defun gnus-url-parse-query-string (query &optional downcase)
8439 (let (retval pairs cur key val)
8440 (setq pairs (split-string query "&"))
8441 (while pairs
8442 (setq cur (car pairs)
8443 pairs (cdr pairs))
8444 (if (not (string-match "=" cur))
8445 nil ; Grace
8446 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
8447 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
8448 (if downcase
8449 (setq key (downcase key)))
8450 (setq cur (assoc key retval))
8451 (if cur
8452 (setcdr cur (cons val (cdr cur)))
8453 (setq retval (cons (list key val) retval)))))
8454 retval))
8456 (defun gnus-url-mailto (url)
8457 ;; Send mail to someone
8460 (setq url (substring url (match-beginning 1) nil)))
8461 (let* ((args (gnus-url-parse-query-string
8463 (substring url 1)
8465 (concat "to=" (match-string 1 url) "&"
8466 (match-string 2 url))
8467 (concat "to=" url)))))
8468 (subject (cdr-safe (assoc "subject" args)))
8469 func)
8470 (gnus-msg-mail)
8471 (while args
8472 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8473 (if (fboundp func)
8474 (funcall func)
8475 (message-position-on-field (caar args)))
8476 (insert (gnus-replace-in-string
8477 (mapconcat 'identity (reverse (cdar args)) ", ")
8479 (setq args (cdr args)))
8480 (if subject
8481 (message-goto-body)
8482 (message-goto-subject))))
8484 (defun gnus-button-embedded-url (address)
8485 "Activate ADDRESS with `browse-url'."
8486 (browse-url (gnus-strip-whitespace address)))
8488 ;;; Next/prev buttons in the article buffer.
8493 (defvar gnus-prev-page-map
8494 (let ((map (make-sparse-keymap)))
8495 (define-key map gnus-mouse-2 'gnus-button-prev-page)
8497 map))
8499 (defvar gnus-next-page-map
8500 (let ((map (make-sparse-keymap)))
8501 (define-key map gnus-mouse-2 'gnus-button-next-page)
8503 map))
8505 (defun gnus-insert-prev-page-button ()
8506 (let ((b (point)) e
8507 (inhibit-read-only t))
8508 (gnus-eval-format
8509 gnus-prev-page-line-format nil
8510 `(keymap ,gnus-prev-page-map
8511 gnus-prev t
8512 gnus-callback gnus-article-button-prev-page
8513 article-type annotation))
8514 (setq e (if (bolp)
8515 ;; Exclude a newline.
8516 (1- (point))
8517 (point)))
8518 (when gnus-article-button-face
8519 (gnus-overlay-put (gnus-make-overlay b e nil t)
8520 'face gnus-article-button-face))
8521 (widget-convert-button
8522 'link b e
8523 :action 'gnus-button-prev-page
8524 :button-keymap gnus-prev-page-map)))
8526 (defun gnus-button-next-page (&optional _args _more-args)
8527 "Go to the next page."
8528 (interactive)
8529 (let ((win (selected-window)))
8530 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8531 (gnus-article-next-page)
8532 (select-window win)))
8534 (defun gnus-button-prev-page (&optional _args _more-args)
8535 "Go to the prev page."
8536 (interactive)
8537 (let ((win (selected-window)))
8538 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8539 (gnus-article-prev-page)
8540 (select-window win)))
8542 (defun gnus-insert-next-page-button ()
8543 (let ((b (point)) e
8544 (inhibit-read-only t))
8545 (gnus-eval-format gnus-next-page-line-format nil
8546 `(keymap ,gnus-next-page-map
8547 gnus-next t
8548 gnus-callback gnus-article-button-next-page
8549 article-type annotation))
8550 (setq e (if (bolp)
8551 ;; Exclude a newline.
8552 (1- (point))
8553 (point)))
8554 (when gnus-article-button-face
8555 (gnus-overlay-put (gnus-make-overlay b e nil t)
8556 'face gnus-article-button-face))
8557 (widget-convert-button
8558 'link b e
8559 :action 'gnus-button-next-page
8560 :button-keymap gnus-next-page-map)))
8562 (defun gnus-article-button-next-page (_arg)
8563 "Go to the next page."
8564 (interactive "P")
8565 (let ((win (selected-window)))
8566 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8567 (gnus-article-next-page)
8568 (select-window win)))
8570 (defun gnus-article-button-prev-page (_arg)
8571 "Go to the prev page."
8572 (interactive "P")
8573 (let ((win (selected-window)))
8574 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8575 (gnus-article-prev-page)
8576 (select-window win)))
8578 (defvar gnus-decode-header-methods
8579 '(mail-decode-encoded-word-region)
8580 "List of methods used to decode headers.
8582 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8583 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8584 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8585 whose names match REGEXP.
8587 For example:
8589 mail-decode-encoded-word-region
8591 ")
8593 (defvar gnus-decode-header-methods-cache nil)
8595 (defun gnus-multi-decode-header (start end)
8596 "Apply the functions from `gnus-encoded-word-methods' that match."
8597 (unless (and gnus-decode-header-methods-cache
8598 (eq gnus-newsgroup-name
8599 (car gnus-decode-header-methods-cache)))
8600 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8601 (dolist (x gnus-decode-header-methods)
8602 (if (symbolp x)
8603 (nconc gnus-decode-header-methods-cache (list x))
8604 (if (and gnus-newsgroup-name
8605 (string-match (car x) gnus-newsgroup-name))
8606 (nconc gnus-decode-header-methods-cache
8607 (list (cdr x)))))))
8608 (let ((xlist gnus-decode-header-methods-cache))
8609 (pop xlist)
8610 (save-restriction
8611 (narrow-to-region start end)
8612 (while xlist
8613 (funcall (pop xlist) (point-min) (point-max))))))
8615 ;;;
8616 ;;; Treatment top-level handling.
8617 ;;;
8619 (defvar gnus-inhibit-article-treatments nil)
8621 ;; Dynamic variables.
8622 (defvar part-number) ;FIXME: Lacks a "gnus-" prefix.
8623 (defvar total-parts) ;FIXME: Lacks a "gnus-" prefix.
8624 (defvar gnus-treat-type)
8625 (defvar gnus-treat-condition)
8626 (defvar gnus-treat-length)
8628 (defun gnus-treat-article (condition
8629 &optional part-num total type)
8630 (let ((gnus-treat-condition condition)
8631 (part-number part-num)
8632 (total-parts total)
8633 (gnus-treat-type type)
8634 (gnus-treat-length (- (point-max) (point-min)))
8635 (alist gnus-treatment-function-alist)
8636 (article-goto-body-goes-to-point-min-p t)
8637 (treated-type
8638 (or (not type)
8639 (catch 'found
8640 (let ((list gnus-article-treat-types))
8641 (while list
8642 (when (string-match (pop list) type)
8643 (throw 'found t)))))))
8644 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8645 val)
8646 (gnus-run-hooks 'gnus-part-display-hook)
8647 (dolist (elem alist)
8648 (setq val
8649 (save-excursion
8650 (when (gnus-buffer-live-p gnus-summary-buffer)
8651 (set-buffer gnus-summary-buffer))
8652 (symbol-value (car elem))))
8653 (when (and (or (consp val)
8654 treated-type)
8655 (or (not gnus-inhibit-article-treatments)
8656 (eq gnus-treat-condition 'head))
8657 (gnus-treat-predicate val)
8658 (or (not (get (car elem) 'highlight))
8659 highlightp))
8660 (save-restriction
8661 (funcall (cadr elem)))))))
8663 (defun gnus-treat-predicate (val)
8664 (cond
8665 ((null val)
8666 nil)
8667 (gnus-treat-condition
8668 (eq gnus-treat-condition val))
8669 ((and (listp val)
8670 (stringp (car val)))
8671 (apply 'gnus-or (mapcar `(lambda (s)
8672 (string-match s ,(or gnus-newsgroup-name "")))
8673 val)))
8674 ((listp val)
8675 (let ((pred (pop val)))
8676 (cond
8677 ((eq pred 'or)
8678 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8679 ((eq pred 'and)
8680 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8681 ((eq pred 'not)
8682 (not (gnus-treat-predicate (car val))))
8683 ((eq pred 'typep)
8684 (equal (car val) gnus-treat-type))
8685 ((functionp pred)
8686 (funcall pred))
8687 (t
8688 (error "%S is not a valid predicate" pred)))))
8689 ((eq val t)
8690 t)
8691 ((eq val 'head)
8692 nil)
8693 ((eq val 'first)
8694 (eq part-number 1))
8695 ((eq val 'last)
8696 (eq part-number total-parts))
8697 ((numberp val)
8698 (< gnus-treat-length val))
8699 (t
8700 (error "%S is not a valid value" val))))
8702 (defun gnus-article-encrypt-body (protocol &optional n)
8703 "Encrypt the article body."
8704 (interactive
8705 (list
8706 (or gnus-article-encrypt-protocol
8707 (gnus-completing-read "Encrypt protocol"
8708 (mapcar 'car gnus-article-encrypt-protocol-alist)
8709 t))
8710 current-prefix-arg))
8711 ;; User might hit `K E' instead of `K e', so prompt once.
8712 (when (and gnus-article-encrypt-protocol
8713 gnus-novice-user)
8714 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8715 (error "Encrypt aborted")))
8716 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8717 (unless func
8718 (error "Can't find the encrypt protocol %s" protocol))
8719 (if (member gnus-newsgroup-name '("nndraft:delayed"
8720 "nndraft:drafts"
8721 "nndraft:queue"))
8722 (error "Can't encrypt the article in group %s"
8723 gnus-newsgroup-name))
8724 (gnus-summary-iterate n
8725 (with-current-buffer gnus-summary-buffer
8726 (let ((mail-parse-charset gnus-newsgroup-charset)
8727 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8728 (summary-buffer gnus-summary-buffer)
8729 references point)
8730 (gnus-set-global-variables)
8731 (when (gnus-group-read-only-p)
8732 (error "The current newsgroup does not support article encrypt"))
8733 (gnus-summary-show-article t)
8734 (setq references
8735 (or (mail-header-references gnus-current-headers) ""))
8736 (set-buffer gnus-article-buffer)
8737 (let* ((inhibit-read-only t)
8738 (headers
8739 (mapcar (lambda (field)
8740 (and (save-restriction
8741 (message-narrow-to-head)
8742 (goto-char (point-min))
8743 (search-forward field nil t))
8744 (prog2
8745 (message-narrow-to-field)
8746 (buffer-string)
8747 (delete-region (point-min) (point-max))
8748 (widen))))
8749 '("Content-Type:" "Content-Transfer-Encoding:"
8750 "Content-Disposition:"))))
8751 (message-narrow-to-head)
8752 (message-remove-header "MIME-Version")
8753 (goto-char (point-max))
8754 (setq point (point))
8755 (insert (apply 'concat headers))
8756 (widen)
8757 (narrow-to-region point (point-max))
8758 (let ((message-options message-options))
8759 (message-options-set 'message-sender user-mail-address)
8760 (message-options-set 'message-recipients user-mail-address)
8761 (message-options-set 'message-sign-encrypt 'not)
8762 (funcall func))
8763 (goto-char (point-min))
8765 (widen)
8766 (gnus-summary-edit-article-done
8767 references nil summary-buffer t))
8768 (when gnus-keep-backlog
8769 (gnus-backlog-remove-article
8770 (car gnus-article-current) (cdr gnus-article-current)))
8771 (gnus-flush-original-article-buffer)
8772 (when gnus-use-cache
8773 (gnus-cache-update-article
8774 (car gnus-article-current) (cdr gnus-article-current))))))))
8777 "The following specs can be used:
8778 %t The security MIME type
8779 %i Additional info
8780 %d Details
8781 %D Details if button is pressed")
8784 "The following specs can be used:
8785 %t The security MIME type
8786 %i Additional info
8787 %d Details
8788 %D Details if button is pressed")
8790 (defvar gnus-mime-security-button-line-format-alist
8791 '((?t gnus-tmp-type ?s)
8792 (?i gnus-tmp-info ?s)
8793 (?d gnus-tmp-details ?s)
8794 (?D gnus-tmp-pressed-details ?s)))
8796 (defvar gnus-mime-security-button-commands
8798 (undefined "v")
8799 (undefined "t")
8800 (undefined "C")
8801 (gnus-mime-security-save-part "o" "Save...")
8802 (undefined "\C-o")
8803 (undefined "r")
8804 (undefined "d")
8805 (undefined "c")
8806 (undefined "i")
8807 (undefined "E")
8808 (undefined "e")
8809 (undefined "p")
8810 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8811 (undefined ".")))
8813 (defvar gnus-mime-security-button-map
8814 (let ((map (make-sparse-keymap)))
8815 (define-key map gnus-mouse-2 'gnus-article-push-button)
8816 (define-key map gnus-down-mouse-3 'gnus-mime-security-button-menu)
8817 (dolist (c gnus-mime-security-button-commands)
8818 (define-key map (cadr c) (car c)))
8819 map))
8821 (easy-menu-define
8822 gnus-mime-security-button-menu gnus-mime-security-button-map
8823 "Security button menu."
8824 `("Security Part"
8825 ,@(delq nil
8826 (mapcar (lambda (c)
8827 (unless (eq (car c) 'undefined)
8828 (vector (caddr c) (car c) :active t)))
8829 gnus-mime-security-button-commands))))
8831 (defun gnus-mime-security-button-menu (event prefix)
8832 "Construct a context-sensitive menu of security commands."
8834 (save-window-excursion
8835 (let ((pos (event-start event)))
8836 (select-window (posn-window pos))
8837 (goto-char (posn-point pos))
8838 (gnus-article-check-buffer)
8839 (popup-menu gnus-mime-security-button-menu nil prefix))))
8841 (defvar gnus-mime-security-details-buffer nil)
8843 (defvar gnus-mime-security-button-pressed nil)
8845 (defvar gnus-mime-security-show-details-inline t
8846 "If non-nil, show details in the article buffer.")
8848 (defun gnus-mime-security-verify-or-decrypt (handle)
8849 (mm-remove-parts (cdr handle))
8850 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8851 point (inhibit-read-only t))
8852 (if region
8853 (goto-char (car region)))
8854 (setq point (point))
8855 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8856 (let* ((mm-verify-option 'known)
8857 (mm-decrypt-option 'known)
8858 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8859 (unless (eq nparts (cdr handle))
8860 (mm-destroy-parts (cdr handle))
8861 (setcdr handle nparts))))
8862 (gnus-mime-display-security handle)
8863 (when region
8864 (delete-region (point) (cdr region))
8865 (set-marker (car region) nil)
8866 (set-marker (cdr region) nil))
8867 (goto-char point)))
8869 (defun gnus-mime-security-show-details (handle)
8870 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8871 (if (not details)
8872 (gnus-message 5 "No details.")
8873 (if gnus-mime-security-show-details-inline
8874 (let ((gnus-mime-security-button-pressed
8875 (not (get-text-property (point) 'gnus-mime-details)))
8876 (gnus-mime-security-button-line-format
8877 (get-text-property (point) 'gnus-line-format))
8878 (inhibit-read-only t))
8879 (forward-char -1)
8880 (while (eq (get-text-property (point) 'gnus-line-format)
8881 gnus-mime-security-button-line-format)
8882 (forward-char -1))
8883 (forward-char)
8884 (save-restriction
8885 (narrow-to-region (point) (point))
8886 (gnus-insert-mime-security-button handle))
8887 (delete-region (point)
8888 (or (text-property-not-all
8889 (point) (point-max)
8890 'gnus-line-format
8891 gnus-mime-security-button-line-format)
8892 (point-max))))
8893 ;; Not inlined.
8894 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8895 (with-current-buffer gnus-mime-security-details-buffer
8896 (erase-buffer)
8897 t)
8898 (setq gnus-mime-security-details-buffer
8899 (gnus-get-buffer-create "*MIME Security Details*")))
8900 (with-current-buffer gnus-mime-security-details-buffer
8901 (insert details)
8902 (goto-char (point-min)))
8903 (pop-to-buffer gnus-mime-security-details-buffer)))))
8905 (defun gnus-mime-security-press-button (handle)
8906 (save-excursion
8907 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8908 (gnus-mime-security-show-details handle)
8909 (gnus-mime-security-verify-or-decrypt handle))))
8911 (defun gnus-insert-mime-security-button (handle &optional _displayed)
8912 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8913 (gnus-tmp-type
8914 (concat
8915 (or (nth 2 (assoc protocol mm-verify-function-alist))
8916 (nth 2 (assoc protocol mm-decrypt-function-alist))
8917 "Unknown")
8918 (if (equal (car handle) "multipart/signed")
8919 " Signed" " Encrypted")
8920 " Part"))
8921 (gnus-tmp-info
8922 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8923 "Undecided"))
8924 (gnus-tmp-details
8925 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8926 gnus-tmp-pressed-details
8927 b e)
8928 (setq gnus-tmp-details
8929 (if gnus-tmp-details
8931 ""))
8932 (setq gnus-tmp-pressed-details
8933 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8934 (unless (bolp)
8936 (setq b (point))
8937 (gnus-eval-format
8938 gnus-mime-security-button-line-format
8939 gnus-mime-security-button-line-format-alist
8940 `(keymap ,gnus-mime-security-button-map
8941 gnus-callback gnus-mime-security-press-button
8942 gnus-line-format ,gnus-mime-security-button-line-format
8943 gnus-mime-details ,gnus-mime-security-button-pressed
8944 article-type annotation
8945 gnus-data ,handle))
8946 (setq e (if (bolp)
8947 ;; Exclude a newline.
8948 (1- (point))
8949 (point)))
8950 (when gnus-article-button-face
8951 (gnus-overlay-put (gnus-make-overlay b e nil t)
8952 'face gnus-article-button-face))
8953 (widget-convert-button
8954 'link b e
8955 :mime-handle handle
8956 :action 'gnus-widget-press-button
8957 :button-keymap gnus-mime-security-button-map
8958 :help-echo
8959 (lambda (_widget)
8960 ;; Needed to properly clear the message due to a bug in
8961 ;; wid-edit (XEmacs only).
8962 (when (boundp 'help-echo-owns-message)
8963 (setq help-echo-owns-message t))
8964 (format
8965 "%S: show detail; %S: more options"
8966 (aref gnus-mouse-2 0)
8967 (aref gnus-down-mouse-3 0))))))
8969 (defun gnus-mime-display-security (handle)
8970 (save-restriction
8971 (narrow-to-region (point) (point))
8972 (unless (gnus-unbuttonized-mime-type-p (car handle))
8973 (gnus-insert-mime-security-button handle))
8974 (gnus-mime-display-part (cadr handle))
8975 (unless (bolp)
8977 (unless (gnus-unbuttonized-mime-type-p (car handle))
8978 (let ((gnus-mime-security-button-line-format
8979 gnus-mime-security-button-end-line-format))
8980 (gnus-insert-mime-security-button handle)))
8981 (mm-set-handle-multipart-parameter
8982 handle 'gnus-region (cons (point-min-marker) (point-max-marker)))
8983 (goto-char (point-max))))
8985 (defun gnus-mime-security-run-function (function)
8986 "Run FUNCTION with the security part under point."
8987 (gnus-article-check-buffer)
8988 (let ((data (get-text-property (point) 'gnus-data))
8989 buffer handle)
8990 (when (and (stringp (car-safe data))
8991 (setq buffer (mm-handle-multipart-original-buffer data))
8992 (setq handle (cadr data)))
8993 (if (bufferp (mm-handle-buffer handle))
8994 (progn
8995 (setq handle (cons buffer (copy-sequence (cdr handle))))
8996 (mm-handle-set-undisplayer handle nil))
8997 (setq handle (mm-make-handle
8998 buffer
8999 (mm-handle-multipart-ctl-parameter handle 'protocol)
9000 nil nil nil nil nil nil)))
9001 (funcall function handle))))
9003 (defun gnus-mime-security-save-part ()
9004 "Save the security part under point."
9005 (interactive)
9006 (gnus-mime-security-run-function 'mm-save-part))
9008 (defun gnus-mime-security-pipe-part ()
9009 "Pipe the security part under point to a process."
9010 (interactive)
9011 (gnus-mime-security-run-function 'mm-pipe-part))
9013 (gnus-ems-redefine)
9015 (provide 'gnus-art)
9017 (run-hooks 'gnus-art-load-hook)
9019 ;;; gnus-art.el ends here