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1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996-2018 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 <https://www.gnu.org/licenses/>.
23 ;;; Commentary:
25 ;;; Code:
55 "Article display."
60 "Treating article parts."
65 "Hiding article parts."
70 "Article highlighting."
76 "Article signatures."
81 "Article headers."
86 "Special commands on articles."
91 "Fontisizing articles."
96 "Saving articles."
101 "Worshiping the MIME wonder."
106 "Pushable buttons in the article buffer."
111 "Other article options."
160 "All headers that start with this regexp will be hidden.
161 This variable can also be a list of regexps of headers to be ignored.
162 If `gnus-visible-headers' is non-nil, this variable will be ignored."
168 "^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:"
169 "All headers that do not match this regexp will be hidden.
170 This variable can also be a list of regexp of headers to remain visible.
171 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
178 regexp)
180 regexp)
186 "This variable is a list of regular expressions.
187 If it is non-nil, headers that match the regular expressions will
188 be placed first in the article buffer in the sequence specified by
189 this list."
194 "Headers that are only to be displayed if they have interesting data.
195 Possible values in this list are:
197 `empty' Headers with no content.
198 `newsgroups' Newsgroup identical to Gnus group.
199 `to-address' To identical to To-address.
200 `to-list' To identical to To-list.
201 `cc-list' Cc identical to To-list.
202 `followup-to' Followup-To identical to Newsgroups.
203 `reply-to' Reply-To identical to From.
204 `date' Date less than four days old.
205 `long-to' To and/or Cc longer than 1024 characters.
206 `many-to' Multiple To and/or Cc."
220 "Skip over text that is not worth reading.
221 By default, if you set this t, then Gnus will display citations and
222 signatures, but will never scroll down to show you a page consisting
223 only of boring text. Boring text is controlled by
224 `gnus-article-boring-faces'."
230 "Regexp matching signature separator.
231 This can also be a list of regexps. In that case, it will be checked
232 from head to tail looking for a separator. Searches will be done from
233 the end of the buffer."
240 "Provide a limit to what is considered a signature.
241 If it is a number, no signature may not be longer (in characters) than
242 that number. If it is a floating point number, no signature may be
243 longer (in lines) than that number. If it is a function, the function
244 will be called without any parameters, and if it returns nil, there is
245 no signature in the buffer. If it is a string, it will be used as a
246 regexp. If it matches, the text in question is not a signature.
248 This can also be a list of the above values."
252 function
257 function
262 ;; We use to have `intangible' here as well, but Emacs's command loop moves
263 ;; point out of invisible text anyway, so `intangible' is clearly not
264 ;; needed there. And XEmacs doesn't handle `intangible' anyway.
266 "Property list to use for hiding text."
270 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
271 ;; frames in a session.
274 'gnus-display-x-face-in-from
275 "{ echo \
276 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
278 "String or function to be executed to display an X-Face header.
279 If it is a string, the command will be executed in a sub-shell
280 asynchronously. The compressed face will be piped to this command."
283 function)
289 "Regexp matching posters whose face shouldn't be shown automatically."
294 "Banner alist for stripping.
295 For example,
296 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
302 banner
303 :variable-document
304 "Alist of regexps (to match group names) and banner."
305 :variable-group gnus-article-washing
306 :parameter-type
308 :value nil
311 regexp
313 :parameter-document
314 "If non-nil, specify how to remove `banners' from articles.
316 Symbol `signature' means to remove signatures delimited by
317 `gnus-signature-separator'. Any other symbol is used to look up a
318 regular expression to match the banner in `gnus-article-banner-alist'.
319 A string is used as a regular expression to match the banner
323 "Alist of mail addresses and banners.
324 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
325 to match a mail address in the From: header, BANNER is one of a symbol
326 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
327 If ADDRESS matches author's mail address, it will remove things like
328 advertisements. For example:
331 "
338 regexp
353 2
356 value)))
364 pattern)
369 value))))
387 types))
389 ;; several times seen it triggered by normal text. --Stef
390 ;; Miles suggests that this form is sometimes used but for italics,
391 ;; so maybe we should map it to `italic'.
392 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
393 ;; 2 3 gnus-emphasis-strikethru)
396 "Alist that says how to fontify certain phrases.
397 Each item looks like this:
401 The first element is a regular expression to be matched. The second
402 is a number that says what regular expression grouping used to find
403 the entire emphasized word. The third is a number that says what
404 regexp grouping should be displayed and highlighted. The fourth
405 is the face used for highlighting."
406 :type
413 :value-create
421 widget
422 :value
425 regexp
428 face)
436 face)))
442 value)))
446 "A regexp to describe whitespace which should not be emphasized.
448 The former avoids underlining of leading and trailing whitespace,
449 and the latter avoids underlining any whitespace at all."
455 "Face used for displaying strong emphasized text (*word*)."
459 "Face used for displaying italic emphasized text (/word/)."
463 "Face used for displaying underlined emphasized text (_word_)."
467 "Face used for displaying underlined bold emphasized text (_*word*_)."
471 "Face used for displaying underlined italic emphasized text (_/word/_)."
475 "Face used for displaying bold italic emphasized text (/*word*/)."
480 "Face used for displaying underlined bold italic emphasized text.
481 Example: (_/*word*/_)."
485 "Face used for displaying strike-through text (-word-)."
490 "Face used for displaying highlighted words."
494 "Format for display of Date headers in article bodies.
495 See `format-time-string' for the possible values.
497 The variable can also be function, which should return a complete Date
498 header. The function is called with one argument, the time, which can
499 be fed to `format-time-string'."
505 "If non-nil, don't remove any headers before saving.
506 This will be overridden by the `:headers' property that the symbol of
507 the saver function, which is specified by `gnus-default-article-saver',
508 might have."
513 "This variable says how much prompting is to be done when saving articles.
514 If it is nil, no prompting will be done, and the articles will be
515 saved to the default files. If this variable is `always', each and
516 every article that is saved will be preceded by a prompt, even when
517 saving large batches of articles. If this variable is neither nil not
518 `always', there the user will be prompted once for a file name for
519 each invocation of the saving commands."
526 "If non-nil, show the cursor in the Article buffer even when not selected."
532 "Headers to keep if `gnus-save-all-headers' is nil.
533 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
534 If that variable is nil, however, all headers that match this regexp
535 will be kept while the rest will be deleted before saving. This and
536 `gnus-save-all-headers' will be overridden by the `:headers' property
537 that the symbol of the saver function, which is specified by
538 `gnus-default-article-saver', might have."
542 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
544 "A function to save articles in your favorite format.
545 The function will be called by way of the `gnus-summary-save-article'
546 command, and friends such as `gnus-summary-save-article-rmail'.
548 Gnus provides the following functions:
550 * gnus-summary-save-in-rmail (Rmail format)
551 * gnus-summary-save-in-mail (Unix mail format)
552 * gnus-summary-save-in-folder (MH folder)
553 * gnus-summary-save-in-file (article format)
554 * gnus-summary-save-body-in-file (article body)
555 * gnus-summary-save-in-vm (use VM's folder format)
556 * gnus-summary-write-to-file (article format -- overwrite)
557 * gnus-summary-write-body-to-file (article body -- overwrite)
558 * gnus-summary-save-in-pipe (article format)
560 The symbol of each function may have the following properties:
562 * :decode
563 The value non-nil means save decoded articles. This is meaningful
564 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
565 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
566 `gnus-summary-save-in-pipe'.
568 * :function
569 The value specifies an alternative function which appends, not
570 overwrites, articles to a file. This implies that when saving many
571 articles at a time, `gnus-prompt-before-saving' is bound to t and all
572 articles are saved in a single file. This is meaningful only with
573 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
575 * :headers
576 The value specifies the symbol of a variable of which the value
577 specifies headers to be saved. If it is omitted,
578 `gnus-save-all-headers' and `gnus-saved-headers' control what
579 headers should be saved."
597 "Coding system used to save decoded articles to a file.
599 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
600 which can safely encode any characters in text. This is used by the
601 commands including:
603 * gnus-summary-save-article-file
604 * gnus-summary-save-article-body-file
605 * gnus-summary-write-article-file
606 * gnus-summary-write-article-body-file
608 and the functions to which you may set `gnus-default-article-saver':
610 * gnus-summary-save-in-file
611 * gnus-summary-save-body-in-file
612 * gnus-summary-write-to-file
613 * gnus-summary-write-body-to-file
615 Those commands and functions save just text displayed in the article
616 buffer to a file if the value of this variable is non-nil. Note that
617 buttonized MIME parts will be lost in a saved file in that case.
618 Otherwise, raw articles will be saved."
633 "A function generating a file name to save articles in Rmail format.
634 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
639 "A function generating a file name to save articles in Unix mail format.
640 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
645 "A function generating a file name to save articles in MH folder.
646 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
651 "A function generating a file name to save articles in article format.
652 The function is called with NEWSGROUP, HEADERS, and optional
653 LAST-FILE."
660 "Variable used to suggest where articles are to be saved.
661 For instance, if you would like to save articles related to Gnus in
663 you could set this variable to something like:
668 This variable is an alist where the key is the match and the
669 value is a list of possible files to save in if the match is
670 non-nil.
672 If the match is a string, it is used as a regexp match on the
673 article. If the match is a symbol, that symbol will be funcalled
674 from the buffer of the article to be saved with the newsgroup as the
675 parameter. If it is a list, it will be evalled in the same buffer.
677 If this form or function returns a string, this string will be used as a
678 possible file name; and if it returns a non-nil list, that list will be
679 used as possible file names."
686 "Regexp describing what to use as article page delimiters.
688 beginning of a line."
693 "The format specification for the article mode line.
694 See `gnus-summary-mode-line-format' for a closer description.
696 The following additional specs are available:
698 %w The article washing status.
699 %m The number of MIME parts in the article."
705 "A hook for Gnus article mode."
710 "Hook run after the creation of the article mode menu."
715 "A hook called after an article has been prepared in the article buffer."
720 "List of headers to be removed when copying an article.
721 Each element is a regular expression."
731 "Face used for highlighting a button in the article buffer."
735 "Face used for highlighting buttons in the article buffer.
737 An article button is a piece of text that you can activate by pressing
738 `RET' or `mouse-2' above it."
743 "Face used for mouse highlighting in the article buffer.
745 Article buttons will be displayed in this face when the cursor is
746 above them."
751 "Face used for highlighting a signature in the article buffer.
752 Obsolete; use the face `gnus-signature' for customizations instead."
760 "Face used for highlighting a signature in the article buffer."
773 "Face used for displaying from headers."
786 "Face used for displaying subject headers."
799 "Face used for displaying newsgroups headers.
800 In the default setup this face is only used for crossposted
801 articles."
814 "Face used for displaying header names."
835 "Controls highlighting of article headers.
837 An alist of the form (HEADER NAME CONTENT).
839 HEADER is a regular expression which should match the name of a
840 header and NAME and CONTENT are either face names or nil.
842 The name of each header field will be displayed using the face
843 specified by the first element in the list where HEADER matches
844 the header name and NAME is non-nil. Similarly, the content will
845 be displayed by the first non-nil matching CONTENT face."
858 "Alist of image types and properties applied to Face and X-Face images.
859 Here are examples:
861 ;; Specify the altitude of Face images in the From header.
862 \(setq gnus-face-properties-alist
864 (png . (:ascent 80))))
866 ;; Show Face images as pressed buttons.
867 \(setq gnus-face-properties-alist
869 (png . (:relief -2))))
871 See the manual for the valid properties for various image types.
872 Currently, `pbm' is used for X-Face images and `png' is used for Face
873 images in Emacs."
880 article-decode-group-name article-decode-idna-rhs)
881 "Hook run to decode charsets in articles."
886 "Function to display MIME articles."
919 "List of MIME types that should be ignored by Gnus."
925 "List of MIME types that should not be given buttons when rendered inline.
926 See also `gnus-buttonized-mime-types' which may override this variable.
927 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
933 "List of MIME types that should be given buttons when rendered inline.
934 If set, this variable overrides `gnus-unbuttonized-mime-types'.
935 To see e.g. security buttons you could set this to
937 this list to display radio buttons that allow you to choose one of two
938 media types those mails include. See also `mm-discouraged-alternatives'.
939 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
945 "If non-nil, all MIME parts get buttons.
946 When nil (the default value), then some MIME parts do not get buttons,
947 as described by the variables `gnus-buttonized-mime-types' and
948 `gnus-unbuttonized-mime-types'."
954 "String used to delimit header and body.
955 This variable is used by `gnus-article-treat-body-boundary' which can
956 be controlled by `gnus-treat-body-boundary'."
960 string))
964 "Defines the location of the faces database.
965 For information on obtaining this database of pretty pictures, please
966 see http://www.cs.indiana.edu/picons/ftp/index.html"
975 "Say whether picons are installed on your machine."
980 installed))
983 "Function called with a MIME handle as the argument.
984 This is meant for people who want to do something automatic based
985 on parts -- for instance, adding Vcard info to a database."
988 function))
991 "An alist of MIME types to functions to display them."
997 "A list of Date header formats to display.
998 Valid formats are `ut' (Universal Time), `local' (local time
999 zone), `english' (readable English), `lapsed' (elapsed time),
1000 `combined-lapsed' (both the original date and the elapsed time),
1001 `original' (the original date header), `iso8601' (ISO8601
1002 format), and `user-defined' (a user-defined format defined by the
1003 `gnus-article-time-format' variable).
1005 You have as many date headers as you want in the article buffer.
1006 Some of these headers are updated automatically. See
1007 `gnus-article-update-date-headers' for details."
1021 "A number that says how often to update the date header (in seconds).
1022 If nil, don't update it at all."
1027 integer))
1030 "Function called with a MIME handle as the argument.
1031 This is meant for people who want to view first matched part.
1032 For `undisplayed-alternative' (default), the first undisplayed
1033 part or alternative part is used. For `undisplayed', the first
1034 undisplayed part is used. For a function, the first part which
1035 the function return t is used. For nil, the first part is
1036 used."
1059 "An alist of actions that run on the MIME attachment."
1065 "Advance to next MIME part when deleting or stripping parts.
1067 When 0, point will be placed on the same part as before. When
1068 positive (negative), move point forward (backwards) this many
1069 parts. When nil, redisplay article."
1075 integer))
1077 ;;;
1078 ;;; The treatment variables
1079 ;;;
1106 "Highlight the signature.
1107 Valid values are nil, t, `head', `first', `last', an integer or a
1108 predicate. See Info node `(gnus)Customizing Articles'."
1115 "Add buttons.
1116 Valid values are nil, t, `head', `first', `last', an integer or a
1117 predicate. See Info node `(gnus)Customizing Articles'."
1124 "Add buttons to the head.
1125 Valid values are nil, t, `head', `first', `last', an integer or a
1126 predicate. See Info node `(gnus)Customizing Articles'."
1133 "Display dates according to the `gnus-article-date-headers' variable.
1134 Valid values are nil, t, `head', `first', `last', an integer or a
1135 predicate. See Info node `(gnus)Customizing Articles'."
1142 "Emphasize text.
1143 Valid values are nil, t, `head', `first', `last', an integer or a
1144 predicate. See Info node `(gnus)Customizing Articles'."
1151 "Remove carriage returns.
1152 Valid values are nil, t, `head', `first', `last', an integer or a
1153 predicate. See Info node `(gnus)Customizing Articles'."
1160 "Remove newlines from within URLs.
1161 Valid values are nil, t, `head', `first', `last', an integer or a
1162 predicate. See Info node `(gnus)Customizing Articles'."
1169 "Remove leading whitespace in headers.
1170 Valid values are nil, t, `head', `first', `last', an integer or a
1171 predicate. See Info node `(gnus)Customizing Articles'."
1178 "Hide headers.
1179 Valid values are nil, t, `head', `first', `last', an integer or a
1180 predicate. See Info node `(gnus)Customizing Articles'."
1186 "Hide boring headers.
1187 Valid values are nil, t, `head', `first', `last', an integer or a
1188 predicate. See Info node `(gnus)Customizing Articles'."
1194 "Hide the signature.
1195 Valid values are nil, t, `head', `first', `last', an integer or a
1196 predicate. See Info node `(gnus)Customizing Articles'."
1202 "Fill the article.
1203 Valid values are nil, t, `head', `first', `last', an integer or a
1204 predicate. See Info node `(gnus)Customizing Articles'."
1210 "Hide cited text.
1211 Valid values are nil, t, `head', `first', `last', an integer or a
1212 predicate. See Info node `(gnus)Customizing Articles'.
1214 See `gnus-article-highlight-citation' for variables used to
1215 control what it hides."
1221 "Hide cited text according to certain conditions.
1222 Valid values are nil, t, `head', `first', `last', an integer or a
1223 predicate. See Info node `(gnus)Customizing Articles'.
1225 See `gnus-cite-hide-percentage' and `gnus-cite-hide-absolute' for
1226 how to control what it hides."
1232 "Strip list identifiers from `gnus-list-identifiers'.
1233 Valid values are nil, t, `head', `first', `last', an integer or a
1234 predicate. See Info node `(gnus)Customizing Articles'."
1241 list-identifier
1242 :variable-document
1243 "Alist of regexps and correspondent identifiers."
1244 :variable-group gnus-article-washing
1245 :parameter-type
1247 :value nil
1249 regexp
1251 :parameter-document
1252 "If non-nil, specify how to remove `identifiers' from articles' subject.
1254 Any symbol is used to look up a regular expression to match the
1255 banner in `gnus-list-identifiers'. A string is used as a regular
1262 "Strip PEM signatures.
1263 Valid values are nil, t, `head', `first', `last', an integer or a
1264 predicate. See Info node `(gnus)Customizing Articles'."
1270 "Strip banners from articles.
1271 The banner to be stripped is specified in the `banner' group parameter.
1272 Valid values are nil, t, `head', `first', `last', an integer or a
1273 predicate. See Info node `(gnus)Customizing Articles'."
1279 "Highlight the headers.
1280 Valid values are nil, t, `head', `first', `last', an integer or a
1281 predicate. See Info node `(gnus)Customizing Articles'."
1288 "Highlight cited text.
1289 Valid values are nil, t, `head', `first', `last', an integer or a
1290 predicate. See Info node `(gnus)Customizing Articles'."
1297 "Strip the X-No-Archive header line from the beginning of the body.
1298 Valid values are nil, t, `head', `first', `last', an integer or a
1299 predicate. See Info node `(gnus)Customizing Articles'."
1306 "Strip trailing blank lines.
1307 Valid values are nil, t, `head', `first', `last', an integer or a
1308 predicate. See Info node `(gnus)Customizing Articles'.
1310 When set to t, it also strips trailing blanks in all MIME parts.
1311 Consider to use `last' instead."
1317 "Strip leading blank lines.
1318 Valid values are nil, t, `head', `first', `last', an integer or a
1319 predicate. See Info node `(gnus)Customizing Articles'.
1321 When set to t, it also strips trailing blanks in all MIME parts."
1327 "Strip multiple blank lines.
1328 Valid values are nil, t, `head', `first', `last', an integer or a
1329 predicate. See Info node `(gnus)Customizing Articles'."
1335 "Unfold folded header lines.
1336 Valid values are nil, t, `head', `first', `last', an integer or a
1337 predicate. See Info node `(gnus)Customizing Articles'."
1344 "If non-nil, allow unfolding headers even if the header is long.
1345 If it is a regexp, only long headers matching this regexp are unfolded.
1346 If it is t, all long headers are unfolded.
1348 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1356 "Fold headers.
1357 Valid values are nil, t, `head', `first', `last', an integer or a
1358 predicate. See Info node `(gnus)Customizing Articles'."
1365 "Fold the Newsgroups and Followup-To headers.
1366 Valid values are nil, t, `head', `first', `last', an integer or a
1367 predicate. See Info node `(gnus)Customizing Articles'."
1374 "Treat overstrike highlighting.
1375 Valid values are nil, t, `head', `first', `last', an integer or a
1376 predicate. See Info node `(gnus)Customizing Articles'."
1383 "Treat ANSI SGR control sequences.
1384 Valid values are nil, t, `head', `first', `last', an integer or a
1385 predicate. See Info node `(gnus)Customizing Articles'."
1399 ;; shell-command-to-string may signal an error, e.g. if
1400 ;; shell-file-name is not found.
1403 "Display X-Face headers.
1404 Valid values are nil and `head'.
1405 See Info node `(gnus)Customizing Articles' and Info node
1406 `(gnus)X-Face' for details."
1411 :type gnus-article-treat-head-custom
1414 symbol
1416 value)
1419 ** gnus-treat-display-xface is an obsolete variable;\
1424 ** gnus-treat-display-xface is an obsolete variable;\
1428 value)))))
1435 "Display Face headers.
1436 Valid values are nil, t, `head', `first', `last', an integer or a
1437 predicate. See Info node `(gnus)Customizing Articles' and Info
1438 node `(gnus)Face' for details."
1447 "Display smileys.
1448 Valid values are nil, t, `head', `first', `last', an integer or a
1449 predicate. See Info node `(gnus)Customizing Articles' and Info
1450 node `(gnus)Smileys' for details."
1462 "Display picons in the From header.
1463 Valid values are nil, t, `head', `first', `last', an integer or a
1464 predicate. See Info node `(gnus)Customizing Articles' and Info
1465 node `(gnus)Picons' for details."
1478 "Display picons in To and Cc headers.
1479 Valid values are nil, t, `head', `first', `last', an integer or a
1480 predicate. See Info node `(gnus)Customizing Articles' and Info
1481 node `(gnus)Picons' for details."
1494 "Display picons in the Newsgroups and Followup-To headers.
1495 Valid values are nil, t, `head', `first', `last', an integer or a
1496 predicate. See Info node `(gnus)Customizing Articles' and Info
1497 node `(gnus)Picons' for details."
1507 "Display gravatars in the From header.
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)Gravatars' for details."
1520 "Display gravatars in To and Cc headers.
1521 Valid values are nil, t, `head', `first', `last', an integer or a
1522 predicate. See Info node `(gnus)Customizing Articles' and Info
1523 node `(gnus)Gravatars' for details."
1534 gnus-treat-mail-picon
1535 gnus-treat-from-picon
1536 gnus-treat-from-gravatar
1537 gnus-treat-mail-gravatar)
1538 ;; If there's much decoration, the user might prefer a boundary.
1539 'head
1540 nil)
1541 "Draw a boundary at the end of the headers.
1542 Valid values are nil and `head'.
1543 See Info node `(gnus)Customizing Articles' for details."
1550 "Capitalize sentence-starting words.
1551 Valid values are nil, t, `head', `first', `last', an integer or a
1552 predicate. See Info node `(gnus)Customizing Articles'."
1559 "Format as HTML.
1560 Valid values are nil, t, `head', `first', `last', an integer or a
1561 predicate. See Info node `(gnus)Customizing Articles'."
1568 "Fill long lines.
1569 Valid values are nil, t, `head', `first', `last', an integer or a
1570 predicate. See Info node `(gnus)Customizing Articles'."
1577 "Verify X-PGP-Sig.
1578 To automatically treat X-PGP-Sig, set it to head.
1579 Valid values are nil, t, `head', `first', `last', an integer or a
1580 predicate. See Info node `(gnus)Customizing Articles'."
1590 ;; Set to nil if more than one protocol added to
1591 ;; gnus-article-encrypt-protocol-alist.
1593 "The protocol used for encrypt articles.
1600 "Whether IDNA decoding of headers is used when viewing messages."
1606 "If non-nil, allow scrolling the article buffer even when there no more text."
1612 "Non-nil means inhibit displaying of images inline in the article body."
1618 "Images that have URLs matching this regexp will be blocked.
1619 Note that the main reason external images are included in HTML
1620 emails (these days) is to allow tracking whether you've read the
1621 email message or not. If you allow loading images in HTML
1622 emails, you give up privacy.
1624 The default value of this variable blocks loading external
1625 resources when reading email groups (and therefore stops
1626 tracking), but allows loading external resources when reading
1627 from NNTP newsgroups and the like.
1629 People controlling these external resources won't be able to tell
1630 that any one person in particular has read the message (since
1631 it's in a public venue, many people will end up loading that
1632 resource), but they'll be able to tell that somebody from your IP
1633 address has accessed the resource.
1635 This can also be a function to be evaluated. If so, it will be
1636 called with the group name as the parameter, and should return a
1637 regexp."
1644 ;;; Internal variables
1683 gnus-article-remove-trailing-blank-lines)
1685 gnus-article-strip-leading-blank-lines)
1687 gnus-article-strip-multiple-blank-lines)
1709 ;; This causes the citation match run O(2^n).
1710 ;; (modify-syntax-entry ?- "w" table)
1713 ;; make M-. in article buffers work for `foo' strings,
1714 ;; and still allow C-s C-w to yank ' to the search ring
1717 table)
1718 "Syntax table used in article mode buffers.
1729 ;;; Macros for dealing with the article buffer.
1753 "Go to HEADER, which is a regular expression."
1757 "Set text PROPS on the B to E region."
1761 "Remove hidden text properties from region between B and E."
1765 "Hide text of TYPE between B and E."
1771 "Unhide text of TYPE between B and E."
1777 "Delete text of TYPE in the current buffer."
1781 ;; Remove MIME buttons associated with multipart/alternative parts.
1789 t))
1800 "Delete all invisible text in the current buffer."
1809 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1817 i))
1820 "Hide unwanted headers and possibly sort them as well."
1822 ;; This function might be inhibited.
1829 ignored visible beg)
1831 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1832 ;; group parameters, so we should go to the summary buffer.
1839 gnus-ignored-headers)
1842 gnus-ignored-headers
1845 gnus-visible-headers)
1849 gnus-visible-headers
1853 ;; First we narrow to just the headers.
1855 ;; Hide any "From " lines at the beginning of (mail) articles.
1860 ;; Then treat the rest of the header lines.
1861 ;; Then we use the two regular expressions
1862 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1863 ;; select which header lines is to remain visible in the
1864 ;; article buffer.
1867 ;; Mark the rank of the header.
1879 ;; We delete the unwanted headers.
1886 "Toggle hiding of headers that aren't very interesting.
1887 If given a negative prefix, always show; if given a positive prefix,
1888 always hide."
1900 ;; Hide empty headers.
1912 ;; Hide boring Newsgroups header.
1918 gnus-newsgroup-name
1930 ;; only one address in To
1932 to-address)))
1943 ;; only one address in To
1945 to-list)))
1956 ;; only one address in Cc
1958 to-list)))
1973 from reply-to
1987 ;; If date in `gnus-article-buffer' is localized
1988 ;; (`gnus-treat-date-user-defined'),
1989 ;; `days-between' might fail.
2047 "Make all header lines 40 characters long."
2050 column)
2057 gnus-article-normalized-header-length)
2061 ? )))
2070 ;; Do nothing.
2071 ))
2075 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2076 Note that this function guesses whether a character is a sm*rtq**t* or
2077 not, so it should only be used interactively.
2079 Sm*rtq**t*s are M****s***'s unilateral extension to the
2080 iso-8859-1 character map in an attempt to provide more quoting
2082 you're expecting some kind of apostrophe or quotation mark, then
2083 try this wash."
2090 "Translate many Unicode characters into their ASCII equivalents."
2101 replace props)
2109 props)
2113 "Translate all string in the body of the article according to MAP.
2133 "Translate overstrikes into bold text."
2141 ;; We do the boldification/underlining by hiding the
2142 ;; overstrikes and putting the proper text property
2143 ;; on the letters.
2159 "Translate ANSI SGR control sequences into overlays or extents."
2167 "Unfold folded message headers.
2168 Only the headers that fit into the current window width will be
2169 unfolded."
2181 header)))))
2195 "Fold message headers."
2218 "Remove all images from the article buffer."
2229 "Show any images that are in the HTML-rendered article buffer.
2230 This only works if the article in question is HTML."
2243 start end)))))))
2246 "Unfold folded message headers.
2247 Only the headers that fit into the current window width will be
2248 unfolded."
2260 "Value of `truncate-lines' in Gnus Article buffer.
2261 Valid values are nil, t, `head', `first', `last', an integer or a
2262 predicate. See Info node `(gnus)Customizing Articles'."
2265 ;; :link '(custom-manual "(gnus)Customizing Articles")
2269 "Toggle whether to fold or truncate long lines in article the buffer.
2270 If ARG is non-nil and not a number, toggle
2271 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2272 long lines if and only if arg is positive."
2291 "Place a boundary line at the end of the headers."
2308 "Fill lines that are wider than the window width."
2328 "Capitalize the first word in each sentence."
2339 "Remove trailing CRs and then translate remaining CRs into LFs."
2351 "Remove all trailing blank lines from the article."
2370 "Display any Face headers in the header."
2374 ;; When displaying parts, this function can be called several times on
2375 ;; the same article, without any intended toggle semantic (as typing `W
2376 ;; D d' would have). So face deletion must occur only when we come from
2377 ;; an interactive command, that is when the *Article* buffer is
2378 ;; read-only.
2382 faces)
2391 ;; Check whether this face is censored.
2396 from))))
2418 "Look for an X-Face header and display it if present."
2422 ;; Delete the old process, if any.
2425 ;; See the comment in `article-display-face'.
2427 ;; We have already displayed X-Faces, so we remove them
2428 ;; instead.
2430 ;; Display X-Faces.
2432 x-faces)
2437 ;; If type `W f', use gnus-original-article-buffer,
2438 ;; otherwise use the current buffer because displaying
2439 ;; RFC822 parts calls this function too.
2445 ;; Check whether this face is censored.
2450 from))))
2454 ;; We display the face.
2456 ;; The command is a lisp function, so we call it.
2459 ;; The command is a string, so we interpret the command
2460 ;; as a, well, command, and fork it off.
2464 "article-x-face" nil shell-file-name
2465 shell-command-switch gnus-article-x-face-command)
2466 nil)
2467 ;; Sending multiple EOFs to xv doesn't work,
2468 ;; so we only do a single external face.
2476 gnus-article-x-face-command
2480 "Decode all MIME-encoded words in the article."
2487 gnus-newsgroup-ignored-charsets)))
2491 "Decode charset-encoded text in the article.
2492 If PROMPT (the prefix), prompt for a coding system to use."
2501 gnus-newsgroup-ignored-charsets))
2502 ct cte ctl charset format)
2525 ;; The text code could have been decoded.
2535 "Remove encoded-word encoding from headers."
2542 gnus-newsgroup-ignored-charsets))
2544 end start)
2563 "Decode group names in Newsgroups, Followup-To and Xref headers."
2567 regexp)
2569 gnus-group-name-charset-group-alist)
2581 ;; XXX how to use data in article buffer?
2585 gnus-newsgroup-name method))
2590 "Decode IDNA strings in RHS in various headers in current buffer.
2591 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2592 Mail-Reply-To: and Mail-Followup-To:."
2611 "Translate a quoted-printable-encoded article.
2612 If FORCE, decode the article whether it is marked as quoted-printable
2613 or not.
2614 If READ-CHARSET, ask for a coding system."
2640 "Translate a base64 article.
2641 If FORCE, decode the article whether it is marked as base64 not.
2642 If READ-CHARSET, ask for a coding system."
2674 "Translate a HZ-encoded article."
2682 "Remove the newlines that some other mailers insert into URLs."
2694 "Format an HTML article."
2707 "List of temporary files created by `gnus-article-browse-html-parts'.
2711 "What to do with temporary files from `gnus-article-browse-html-parts'.
2712 If nil, don't delete temporary files. If it is t, delete them on
2713 exit from the summary buffer. If it is the symbol `file', query
2714 on each file, if it is `ask' ask once when exiting from the
2715 summary buffer."
2723 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2726 "Delete temp-files created by `gnus-article-browse-html-parts'."
2734 "Delete the temporary HTML file? "
2736 files)))
2738 how)))
2744 "Delete temporary HTML file(s) in directory `%s'? "
2752 ;; Also remove file from the list when not deleted or if file doesn't
2753 ;; exist anymore.
2755 gnus-article-browse-html-temp-list)
2758 "Find CID content in HANDLES and save it in a file in DIRECTORY.
2759 Return file name relative to the parent of DIRECTORY."
2766 ;; Exclude broken handles that `gnus-summary-enter-digest-group'
2767 ;; may create.
2771 cid handle directory))
2778 mailcap-mime-extensions))))
2787 Recurse into multiparts. The optional HEADER that should be a decoded
2789 ;; Internal function used by `gnus-article-browse-html-article'.
2791 ;; Find and show the html-parts.
2793 ;; If HTML, show it:
2805 nil)))
2817 ;; resolve cid contents
2819 st base regexp cid-file)
2840 base))
2847 nil t)
2852 content nil)
2857 gnus-article-mime-handles)
2858 cid-dir))
2863 ;; Do we need to care for 8.3 filenames?
2865 ;; Add a meta html tag to specify charset and a header.
2876 nil t)
2892 ;; We have to examine charset one by one since
2893 ;; charset specified in parts might be different.
2897 charset)
2906 hcharset nil t)))
2909 coding hcharset)))
2915 nil t))
2921 title coding))
2922 body content)
2928 title charset))
2931 content body)
2932 charset))))
2938 title coding))
2939 body content))
2942 body content)))
2966 content))
2981 ;; FIXME: Warn if there's an <img> tag?
2984 ;; If multipart, recurse
2999 gnus-visible-headers)))
3009 showed))
3013 Inline images embedded in a message using the cid scheme, as they are
3014 generally considered to be safe, will be processed properly.
3015 The message header is added to the beginning of every html part unless
3016 the prefix argument ARG is given.
3018 Warning: Spammers use links to images (using the http scheme) in HTML
3019 articles to verify whether you have read the message. As
3020 `gnus-article-browse-html-article' passes the HTML content to the
3022 use it for mails from trusted senders.
3024 This command creates temporary files to pass HTML contents including
3025 images if any to the browser, and deletes them when exiting the group
3026 \(if you want)."
3027 ;; Cf. `mm-w3m-safe-url-regexp'
3032 gnus-visible-headers))
3033 ;; As we insert a <hr>, there's no need for the body boundary.
3047 parts)
3050 ;; If singlepart, enforce a list.
3054 ;; Process the list
3062 "Remove list identifiers from the Subject header.
3063 The `gnus-list-identifiers' variable specifies what to do."
3075 nil t)
3083 "Toggle hiding of any PEM headers and signatures in the current article.
3084 If given a negative prefix, always show; if given a positive prefix,
3085 always hide."
3091 ;; Hide the horrendously ugly "header".
3094 nil t)
3098 end
3103 ;; Hide the trailer as well
3105 nil t)
3110 "Strip the banners specified by the `banner' group parameter and by
3111 `gnus-article-address-banner-alist'."
3120 ;; Note that the From header is decoded here, so it is
3121 ;; required that the *-extract-address-components function
3122 ;; supports non-ASCII text.
3130 from))))
3138 "Strip the banner specified by the argument."
3160 "Translate article using an online translation service."
3175 "Hide the signature in the current article.
3176 If given a negative prefix, always show; if given a positive prefix,
3177 always hide."
3189 "Strip offensive headers from bodies."
3198 "Remove all blank lines from the beginning of the article."
3209 "Narrow the buffer to the head of the message.
3210 Point is left at the beginning of the narrowed-to region."
3214 ;; Absolutely no headers displayed.
3217 ;; Normal headers.
3220 ;; Nothing but headers.
3226 "Place point at the start of the body."
3229 ;; This variable is only bound when dealing with separate
3230 ;; MIME body parts.
3232 t)
3234 t)
3237 nil)))
3240 "Replace consecutive blank lines with one empty line."
3245 ;; First make all blank lines empty.
3251 ;; Then replace multiple empty lines with a single empty line.
3259 "Remove all white space from the beginning of the lines in the article."
3269 "Remove all white space from the end of the lines in the article."
3279 "Strip leading, trailing and multiple blank lines."
3286 "Strip all blank lines."
3296 "Narrow to the signature; return t if a signature is found, else nil."
3300 ;; Check whether we have some limits to what we consider
3301 ;; to be a signature.
3304 limit limited)
3316 limits nil)))
3319 t)))))
3322 "Search the current buffer for the signature separator.
3323 Put point at the beginning of the signature separator."
3332 seps))
3333 t
3335 nil)))
3338 "Return the current prefix arg as a number, or 0 if no prefix."
3344 "Return nil if hiding is necessary.
3345 Arg can be nil or a number. nil and positive means hide, negative
3346 means show, 0 means toggle."
3353 nil)
3356 t)
3361 t)
3362 nil)))))))
3365 "Say whether the current buffer contains hidden text of type TYPE."
3373 'hidden
3374 nil)))
3377 "Show all hidden text of type TYPE.
3378 Originally it is hide instead of DUMMY."
3382 'article-type type
3385 gnus-hidden-properties)))
3398 "Move point to the start of the next header.
3399 If the current header is a continuation header, this can be several
3400 lines forward."
3411 gnus-article-date-headers)
3412 gnus-article-date-headers)
3413 t))
3416 "Convert DATE date to TYPE in the current article.
3417 The default type is `ut'. See `gnus-article-date-headers' for
3418 possible values."
3424 pos date bface eface)
3437 ;; There might be space(s) added for line unfolding.
3442 date-position)
3462 ;; Note: a feature like `gnus-treat-unfold-headers' breaks
3463 ;; the continuity of text props of a multi-line Date header,
3464 ;; that a user-defined date format might create, by adding
3465 ;; spaces. So, don't rely on gnus-date-type or original-date
3466 ;; text prop in case of searching for the header boundary.
3481 visible-date)
3495 type)))
3499 ;; Test if this is not a continuation.
3507 ;; This user-defined date seems to intend to be a continuation
3508 ;; line of a multi-line Date header like this:
3509 ;; Date: Thu, Jan 1 00:00:00 1970 +0000
3510 ;; (47 years, 5 months, 20 days ago)
3516 ;; Do highlighting.
3533 "Return a DATE line of TYPE."
3535 combined-lapsed))
3540 ;; Convert to the local timezone.
3543 ;; Convert to Universal Time.
3557 ;; Get the original date from the article.
3561 date)))
3562 ;; Let the user define the format.
3566 gnus-article-time-format)
3568 gnus-article-time-format)))
3572 ;; ISO 8601.
3576 "Date: "
3581 ;; Do a lapsed format.
3584 ;; A combined date/lapsed format.
3588 lapsed-string)
3590 time
3600 date-string)))
3601 ;; Display the date in proper English
3605 "Date: the "
3614 " of "
3616 " "
3618 " at "
3620 ":"
3626 ;; If the date is seriously mangled, the timezone functions are
3627 ;; liable to bug out, so we ignore all errors.
3634 num prev)
3644 ;; This is a bit convoluted, but basically we go
3645 ;; through the time units for years, weeks, etc,
3646 ;; and divide things to see whether that results
3647 ;; in positive answers.
3652 ;; The (remaining) seconds are too few to
3653 ;; be divided into this time unit.
3654 ""
3655 ;; It's big enough, so we output it.
3665 ;; If dates are odd, then it might appear like the
3666 ;; article was sent in the future.
3668 " ago"
3672 "Convert the current article date to the local timezone."
3677 "Convert the current article date to something that is proper English."
3682 "Convert the current article date to what it was originally.
3683 This is only useful if you have used some other date conversion
3684 function and want to see what the date was before converting."
3689 "Convert the current article date to time lapsed since it was sent."
3694 "Convert the current article date to time lapsed since it was sent."
3699 "Function to be run from a timer to update the lapsed time line."
3711 type next end)
3741 "Start a timer to update the Date headers in the article buffers.
3742 The numerical prefix says how frequently (in seconds) the function
3743 is to run."
3752 "Stop the Date timer."
3759 "Convert the current article date to the user-defined format.
3760 This format is defined by the `gnus-article-time-format' variable."
3765 "Convert the current article date to ISO8601."
3770 "Save the original date as a text property and evaluate FORMS."
3779 nil t))
3785 ,@forms
3790 ;; (defun article-show-all ()
3791 ;; "Show all hidden text in the article buffer."
3792 ;; (interactive)
3793 ;; (save-excursion
3794 ;; (let ((inhibit-read-only t))
3795 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3798 "Remove excessive whitespace from all headers."
3809 "Emphasize text according to `gnus-emphasis-alist'."
3816 gnus-article-emphasis-alist)
3818 gnus-emphasis-alist))
3821 gnus-hidden-properties))
3822 regexp elem beg invisible visible face)
3843 "Setup newsgroup emphasis alist."
3855 highlight)
3860 gnus-emphasis-alist)))))
3865 ;;; Saving functions.
3868 "Save the currently selected article."
3871 ;; Remove headers according to `gnus-saved-headers' or the value
3872 ;; of the `:headers' property that the saver function might have.
3875 gnus-saved-headers gnus-visible-headers))
3876 ;; Ignore group parameter. See `article-hide-headers'.
3883 ;; !!! Magic! The saving functions all save
3884 ;; `gnus-save-article-buffer' (or so they think), but we
3885 ;; bind that variable to our save-buffer.
3900 function group headers variable
3901 dir-var)
3904 result)
3909 default-name)
3911 default-name)
3924 gnus-number-of-articles-to-be-saved)
3927 ;; Let the split methods have their say.
3929 ;; No split name was found.
3935 default-name))
3936 ;; A single group name is returned.
3945 default-name))
3946 ;; A single split name was found
3950 gnus-article-save-directory))
3957 dir name)))
3958 ;; A list of splits was found.
3968 gnus-article-save-directory
3970 gnus-article-save-directory)))
3972 ;; Create the directory.
3974 ;; If we have read a directory, we append the default file name.
3977 default-name)
3979 ;; Possibly translate some characters.
3986 result))
3996 "If GROUP is an nndoc group, return the name of the parent group."
4001 "Append this article to Rmail file.
4002 Optional argument FILENAME specifies file name.
4003 Directory to save to is default to `gnus-article-save-directory'."
4005 "Save %s in rmail file" filename
4006 gnus-rmail-save-name gnus-newsgroup-name
4012 ;; Note that unlike gnus-summary-save-in-mail, there is no
4013 ;; check to see if filename is Babyl. Rmail in Emacs 23 does
4014 ;; not use Babyl.
4016 filename)
4019 "Append this article to Unix mail file.
4020 Optional argument FILENAME specifies file name.
4021 Directory to save to is default to `gnus-article-save-directory'."
4023 "Save %s in Unix mail file" filename
4024 gnus-mail-save-name gnus-newsgroup-name
4035 filename)
4040 "Append this article to file.
4041 Optional argument FILENAME specifies file name.
4042 Directory to save to is default to `gnus-article-save-directory'."
4044 "Save %s in file" filename
4045 gnus-file-save-name gnus-newsgroup-name
4055 filename)
4061 "Write this article to a file, overwriting it if the file exists.
4062 Optional argument FILENAME specifies file name.
4063 The directory to save in defaults to `gnus-article-save-directory'."
4065 "Save %s in file" filename
4066 gnus-file-save-name gnus-newsgroup-name
4072 "Append this article body to a file.
4073 Optional argument FILENAME specifies file name.
4074 The directory to save in defaults to `gnus-article-save-directory'."
4076 "Save %s body in file" filename
4077 gnus-file-save-name gnus-newsgroup-name
4089 filename)
4095 "Write this article body to a file, overwriting it if the file exists.
4096 Optional argument FILENAME specifies file name.
4097 The directory to save in defaults to `gnus-article-save-directory'."
4099 "Save %s body in file" filename
4100 gnus-file-save-name gnus-newsgroup-name
4107 "Pipe this article to subprocess COMMAND.
4108 Valid values for COMMAND include:
4109 a string
4110 The executable command name and possibly arguments.
4111 nil
4112 You will be prompted for the command in the minibuffer.
4113 the symbol `default'
4114 It will be replaced with the command which the variable
4115 `gnus-summary-pipe-output-default-command' holds or the command
4116 last used for saving.
4117 Non-nil value for RAW overrides `:decode' and `:headers' properties
4118 and the raw article including all headers will be piped."
4122 save-buffer default)
4130 gnus-article-buffer
4131 gnus-original-article-buffer)
4134 ;; Remove unwanted headers.
4141 gnus-saved-headers gnus-visible-headers))
4147 gnus-last-shell-command))
4151 default
4165 "Pipe this article to muttprint."
4168 "Print using command: " gnus-summary-muttprint-program
4169 nil gnus-summary-muttprint-program)))
4171 gnus-summary-pipe-output-default-command))
4175 ;;; Article file names when saving.
4178 "Capitalize NEWSGROUP name."
4184 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4185 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
4186 Otherwise, it is like ~/News/news/group/num."
4193 gnus-article-save-directory)))
4198 default
4202 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4203 If variable `gnus-use-long-file-name' is non-nil, it is
4204 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4208 newsgroup
4211 gnus-article-save-directory)))
4216 default
4220 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4221 If variable `gnus-use-long-file-name' is non-nil, it is
4222 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4226 newsgroup
4229 default-directory))
4230 gnus-article-save-directory)))
4233 "Generate file name from sender."
4239 gnus-article-save-directory)))
4242 "Verify X-PGP-Sig."
4243 ;; <https://ftp.isc.org/pub/pgpcontrol/FORMAT>
4248 items info headers)
4250 mml2015-use
4258 ;; Don't verify multiple headers.
4308 ;; Do highlighting.
4317 "Verify Cancel-Lock header."
4341 article-verify-x-pgp-sig
4342 article-verify-cancel-lock
4343 article-hide-boring-headers
4344 article-treat-overstrike
4345 article-treat-ansi-sequences
4346 article-fill-long-lines
4347 article-capitalize-sentences
4348 article-remove-cr
4349 article-remove-leading-whitespace
4350 article-display-x-face
4351 article-display-face
4352 article-de-quoted-unreadable
4353 article-de-base64-unreadable
4354 article-decode-HZ
4355 article-wash-html
4356 article-unsplit-urls
4357 article-hide-list-identifiers
4358 article-strip-banner
4359 article-babel
4360 article-hide-pem
4361 article-hide-signature
4362 article-strip-headers-in-body
4363 article-remove-trailing-blank-lines
4364 article-strip-leading-blank-lines
4365 article-strip-multiple-blank-lines
4366 article-strip-leading-space
4367 article-strip-trailing-space
4368 article-strip-blank-lines
4369 article-strip-all-blank-lines
4370 article-date-local
4371 article-date-english
4372 article-date-iso8601
4373 article-date-original
4374 article-treat-date
4375 article-date-ut
4376 article-decode-mime-words
4377 article-decode-charset
4378 article-decode-encoded-words
4379 article-date-user
4380 article-date-lapsed
4381 article-date-combined-lapsed
4382 article-emphasize
4383 article-treat-dumbquotes
4384 article-treat-non-ascii
4385 article-normalize-headers
4386 ;;(article-show-all . gnus-article-show-all-headers)
4387 )))
4388 \f
4389 ;;;
4390 ;;; Gnus article mode
4391 ;;;
4398 " " gnus-article-goto-next-page
4401 [delete] gnus-article-goto-prev-page
4402 "\C-c^" gnus-article-refer-article
4403 "h" gnus-article-show-summary
4404 "s" gnus-article-show-summary
4405 "\C-c\C-m" gnus-article-mail
4406 "?" gnus-article-describe-briefly
4407 "<" beginning-of-buffer
4408 ">" end-of-buffer
4409 "\C-c\C-i" gnus-info-find-node
4410 "\C-c\C-b" gnus-bug
4411 "R" gnus-article-reply-with-original
4412 "F" gnus-article-followup-with-original
4413 "\C-hk" gnus-article-describe-key
4414 "\C-hc" gnus-article-describe-key-briefly
4415 "\C-hb" gnus-article-describe-bindings
4417 "e" gnus-article-read-summary-keys
4418 "\C-d" gnus-article-read-summary-keys
4419 "\M-*" gnus-article-read-summary-keys
4420 "\M-#" gnus-article-read-summary-keys
4421 "\M-^" gnus-article-read-summary-keys
4422 "\M-g" gnus-article-read-summary-keys)
4424 (substitute-key-definition
4425 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4427 (defvar gnus-article-send-map)
4428 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4429 "W" gnus-article-wide-reply-with-original
4430 [t] gnus-article-read-summary-send-keys)
4432 (defun gnus-article-make-menu-bar ()
4433 (unless (boundp 'gnus-article-commands-menu)
4434 (gnus-summary-make-menu-bar))
4435 (unless (boundp 'gnus-article-article-menu)
4436 (easy-menu-define
4437 gnus-article-article-menu gnus-article-mode-map ""
4438 '("Article"
4439 ["Scroll forwards" gnus-article-goto-next-page t]
4440 ["Scroll backwards" gnus-article-goto-prev-page t]
4441 ["Show summary" gnus-article-show-summary t]
4442 ["Fetch Message-ID at point" gnus-article-refer-article t]
4443 ["Mail to address at point" gnus-article-mail t]
4444 ["Send a bug report" gnus-bug t]))
4446 (easy-menu-define
4447 gnus-article-treatment-menu gnus-article-mode-map ""
4448 ;; Fixme: this should use :active (and maybe :visible).
4449 '("Treatment"
4450 ["Hide headers" gnus-article-hide-headers t]
4451 ["Hide signature" gnus-article-hide-signature t]
4452 ["Hide citation" gnus-article-hide-citation t]
4453 ["Treat overstrike" gnus-article-treat-overstrike t]
4454 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4455 ["Remove carriage return" gnus-article-remove-cr t]
4456 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4457 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4458 ["Remove base64" gnus-article-de-base64-unreadable t]
4459 ["Treat html" gnus-article-wash-html t]
4460 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4461 ["Decode HZ" gnus-article-decode-HZ t]))
4463 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4465 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4467 (gnus-run-hooks 'gnus-article-menu-hook)))
4469 (defvar bookmark-make-record-function)
4470 (defvar shr-put-image-function)
4472 (define-derived-mode gnus-article-mode fundamental-mode "Article"
4473 "Major mode for displaying an article.
4475 All normal editing commands are switched off.
4477 The following commands are available in addition to all summary mode
4478 commands:
4487 (gnus-simplify-mode-line)
4488 (make-local-variable 'minor-mode-alist)
4489 (when (gnus-visual-p 'article-menu 'menu)
4490 (gnus-article-make-menu-bar)
4491 (when gnus-summary-tool-bar-map
4492 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4493 (gnus-update-format-specifications nil 'article-mode)
4494 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4495 (set (make-local-variable 'gnus-page-broken) nil)
4496 (make-local-variable 'gnus-article-current-summary)
4497 (make-local-variable 'gnus-article-mime-handles)
4498 (make-local-variable 'gnus-article-decoded-p)
4499 (make-local-variable 'gnus-article-mime-handle-alist)
4500 (make-local-variable 'gnus-article-wash-types)
4501 (make-local-variable 'gnus-article-image-alist)
4502 (make-local-variable 'gnus-article-charset)
4503 (make-local-variable 'gnus-article-ignored-charsets)
4504 (set (make-local-variable 'bookmark-make-record-function)
4505 'gnus-summary-bookmark-make-record)
4506 ;; Prevent Emacs from displaying non-break space with
4507 ;; `nobreak-space' face.
4508 (set (make-local-variable 'nobreak-char-display) nil)
4509 ;; Enable `gnus-article-remove-images' to delete images shr.el renders.
4510 (set (make-local-variable 'shr-put-image-function) 'gnus-shr-put-image)
4511 (unless gnus-article-show-cursor
4512 (setq cursor-in-non-selected-windows nil))
4513 (gnus-set-default-directory)
4514 (buffer-disable-undo)
4515 (setq buffer-read-only t
4516 show-trailing-whitespace nil)
4517 (mm-enable-multibyte))
4519 (defun gnus-article-setup-buffer ()
4520 "Initialize the article buffer."
4521 (let* ((name (if gnus-single-article-buffer "*Article*"
4522 (concat "*Article "
4523 (gnus-group-decoded-name gnus-newsgroup-name)
4524 "*")))
4525 (original
4527 (concat " *Original Article"
4528 (substring name (match-end 0))))))
4529 (setq gnus-article-buffer name)
4530 (setq gnus-original-article-buffer original)
4531 (setq gnus-article-mime-handle-alist nil)
4532 (with-current-buffer gnus-summary-buffer
4533 ;; This might be a variable local to the summary buffer.
4534 (unless gnus-single-article-buffer
4535 (setq gnus-article-buffer name)
4536 (setq gnus-original-article-buffer original)
4537 (gnus-set-global-variables)))
4538 (gnus-article-setup-highlight-words)
4539 ;; Init original article buffer.
4540 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4541 (mm-enable-multibyte)
4542 (setq major-mode 'gnus-original-article-mode)
4543 (make-local-variable 'gnus-original-article))
4544 (if (and (get-buffer name)
4545 (with-current-buffer name
4546 (if gnus-article-edit-mode
4547 (if (y-or-n-p "Article mode edit in progress; discard? ")
4548 (progn
4549 (set-buffer-modified-p nil)
4550 (gnus-kill-buffer name)
4551 (message "")
4552 nil)
4553 (error "Action aborted"))
4554 t)))
4555 (let ((summary gnus-summary-buffer))
4556 (with-current-buffer name
4557 (set (make-local-variable 'gnus-article-edit-mode) nil)
4558 (gnus-article-stop-animations)
4559 (when gnus-article-mime-handles
4560 (mm-destroy-parts gnus-article-mime-handles)
4561 (setq gnus-article-mime-handles nil))
4562 ;; Set it to nil in article-buffer!
4563 (setq gnus-article-mime-handle-alist nil)
4564 (buffer-disable-undo)
4565 (setq buffer-read-only t)
4566 (unless (derived-mode-p 'gnus-article-mode)
4567 (gnus-article-mode))
4568 (set (make-local-variable 'gnus-summary-buffer) summary)
4569 (setq truncate-lines gnus-article-truncate-lines)
4570 (current-buffer)))
4571 (let ((summary gnus-summary-buffer))
4572 (with-current-buffer (gnus-get-buffer-create name)
4573 (gnus-article-mode)
4574 (setq truncate-lines gnus-article-truncate-lines)
4575 (set (make-local-variable 'gnus-summary-buffer) summary)
4576 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4577 (when article-lapsed-timer
4578 (gnus-stop-date-timer))
4579 (when gnus-article-update-date-headers
4580 (gnus-start-date-timer gnus-article-update-date-headers))
4581 (current-buffer))))))
4583 (defun gnus-article-stop-animations ()
4584 (dolist (timer (and (boundp 'timer-list)
4585 timer-list))
4586 (when (eq (timer--function timer) 'image-animate-timeout)
4587 (cancel-timer timer))))
4589 (defun gnus-stop-downloads ()
4590 (when (boundp 'url-queue)
4591 (set (intern "url-queue" obarray) nil)))
4593 ;; Set article window start at LINE, where LINE is the number of lines
4594 ;; from the head of the article.
4595 (defun gnus-article-set-window-start (&optional line)
4596 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4597 (when article-window
4598 (set-window-start
4599 article-window
4600 (with-current-buffer gnus-article-buffer
4601 (goto-char (point-min))
4602 (if (not line)
4603 (point-min)
4604 (gnus-message 6 "Moved to bookmark")
4606 (forward-line line)
4607 (point)))))))
4609 (defvar gnus-tmp-internal-hook)
4611 (defun gnus-article-prepare (article &optional all-headers _header)
4612 "Prepare ARTICLE in article mode buffer.
4613 ARTICLE should either be an article number or a Message-ID.
4614 If ARTICLE is an id, HEADER should be the article headers.
4615 If ALL-HEADERS is non-nil, no headers are hidden."
4616 (save-excursion ;FIXME: Shouldn't that be save-current-buffer?
4617 ;; Make sure we start in a summary buffer.
4618 (unless (derived-mode-p 'gnus-summary-mode)
4619 (set-buffer gnus-summary-buffer))
4620 (setq gnus-summary-buffer (current-buffer))
4621 (let* ((summary-buffer (current-buffer))
4622 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4623 (group gnus-newsgroup-name)
4624 result)
4625 (save-excursion
4626 (gnus-article-setup-buffer)
4627 (set-buffer gnus-article-buffer)
4628 ;; Deactivate active regions.
4629 (when transient-mark-mode
4630 (setq mark-active nil))
4631 (if (not (setq result (let ((inhibit-read-only t))
4632 (gnus-request-article-this-buffer
4633 article group))))
4634 ;; There is no such article.
4635 (save-excursion
4636 (when (and (numberp article)
4637 (not (memq article gnus-newsgroup-sparse)))
4638 (setq gnus-article-current
4639 (cons gnus-newsgroup-name article))
4640 (set-buffer gnus-summary-buffer)
4641 (setq gnus-current-article article)
4642 (if (and (memq article gnus-newsgroup-undownloaded)
4643 (not (gnus-online (gnus-find-method-for-group
4644 gnus-newsgroup-name))))
4645 (progn
4646 (gnus-summary-set-agent-mark article)
4647 (message "Message marked for downloading"))
4648 (gnus-summary-mark-article article gnus-canceled-mark)
4649 (unless (memq article gnus-newsgroup-sparse)
4650 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4651 (if (or (eq result 'pseudo)
4652 (eq result 'nneething))
4653 (progn
4654 (with-current-buffer summary-buffer
4655 (push article gnus-newsgroup-history)
4656 (setq gnus-last-article gnus-current-article
4657 gnus-current-article 0
4658 gnus-current-headers nil
4659 gnus-article-current nil)
4660 (if (eq result 'nneething)
4661 (gnus-configure-windows 'summary)
4662 (gnus-configure-windows 'article))
4663 (gnus-set-global-variables))
4664 (let ((gnus-article-mime-handle-alist-1
4665 gnus-article-mime-handle-alist))
4666 (gnus-set-mode-line 'article)))
4667 ;; The result from the `request' was an actual article -
4668 ;; or at least some text that is now displayed in the
4669 ;; article buffer.
4670 (when (and (numberp article)
4671 (not (eq article gnus-current-article)))
4672 ;; Seems like a new article has been selected.
4673 ;; `gnus-current-article' must be an article number.
4674 (with-current-buffer summary-buffer
4675 (push article gnus-newsgroup-history)
4676 (setq gnus-last-article gnus-current-article
4677 gnus-current-article article
4678 gnus-current-headers
4679 (gnus-summary-article-header gnus-current-article)
4680 gnus-article-current
4681 (cons gnus-newsgroup-name gnus-current-article))
4682 (unless (vectorp gnus-current-headers)
4683 (setq gnus-current-headers nil))
4684 (gnus-summary-goto-subject gnus-current-article)
4685 (when (gnus-summary-show-thread)
4686 ;; If the summary buffer really was folded, the
4687 ;; previous goto may not actually have gone to
4688 ;; the right article, but the thread root instead.
4689 ;; So we go again.
4690 (gnus-summary-goto-subject gnus-current-article))
4691 (gnus-run-hooks 'gnus-mark-article-hook)
4692 (gnus-set-mode-line 'summary)
4693 (when (gnus-visual-p 'article-highlight 'highlight)
4694 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4695 ;; Set the global newsgroup variables here.
4696 (gnus-set-global-variables)
4697 (setq gnus-have-all-headers
4698 (or all-headers gnus-show-all-headers))))
4699 (save-excursion
4700 (gnus-configure-windows 'article))
4701 (when (or (numberp article)
4702 (stringp article))
4703 (gnus-article-prepare-display)
4704 ;; Do page break.
4705 (goto-char (point-min))
4706 (when gnus-break-pages
4707 (gnus-narrow-to-page)))
4708 (let ((gnus-article-mime-handle-alist-1
4709 gnus-article-mime-handle-alist))
4710 (gnus-set-mode-line 'article))
4711 (article-goto-body)
4712 (unless (bobp)
4713 (forward-line -1))
4714 (set-window-point (get-buffer-window (current-buffer)) (point))
4715 (gnus-configure-windows 'article)
4716 ;; Make sure the article begins with the top of the header.
4717 (let ((window (get-buffer-window gnus-article-buffer)))
4718 (when window
4719 (with-current-buffer (window-buffer window)
4720 (set-window-point window (point-min)))))
4721 (gnus-run-hooks 'gnus-article-prepare-hook)
4722 t))))))
4724 (defvar gnus-mime-display-attachment-buttons-in-header)
4726 ;;;###autoload
4727 (defun gnus-article-prepare-display ()
4728 "Make the current buffer look like a nice article."
4729 ;; Hooks for getting information from the article.
4730 ;; This hook must be called before being narrowed.
4731 (let ((gnus-article-buffer (current-buffer))
4732 buffer-read-only
4733 (inhibit-read-only t))
4734 (unless (derived-mode-p 'gnus-article-mode)
4735 (gnus-article-mode))
4736 (setq buffer-read-only nil
4737 gnus-article-wash-types nil
4738 gnus-article-image-alist nil)
4739 (gnus-run-hooks 'gnus-tmp-internal-hook)
4740 (when gnus-display-mime-function
4741 (funcall gnus-display-mime-function))
4742 ;; Add attachment buttons to the header.
4743 (when gnus-mime-display-attachment-buttons-in-header
4744 (gnus-mime-buttonize-attachments-in-header))))
4746 ;;;
4747 ;;; Gnus Sticky Article Mode
4748 ;;;
4750 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4751 "Mode for sticky articles."
4752 ;; Release bindings that won't work.
4753 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4754 gnus-sticky-article-mode-map)
4755 (substitute-key-definition 'gnus-article-refer-article 'undefined
4756 gnus-sticky-article-mode-map)
4757 (dolist (k '("e" "h" "s" "F" "R"))
4758 (define-key gnus-sticky-article-mode-map k nil))
4759 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4760 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4761 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4762 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4764 (defun gnus-sticky-article (arg)
4765 "Make the current article sticky.
4766 If a prefix ARG is given, ask for a name for this sticky article buffer."
4767 (interactive "P")
4768 (gnus-summary-show-thread)
4769 (gnus-summary-select-article nil nil 'pseudo)
4770 (let (new-art-buf-name)
4771 (gnus-eval-in-buffer-window gnus-article-buffer
4772 (setq new-art-buf-name
4773 (concat
4774 "*Sticky Article: "
4775 (if arg
4776 (read-from-minibuffer "Sticky article buffer name: ")
4777 (gnus-with-article-headers
4778 (gnus-article-goto-header "subject")
4779 (setq new-art-buf-name
4780 (buffer-substring-no-properties
4781 (line-beginning-position) (line-end-position)))
4782 (goto-char (point-min))
4783 (gnus-article-goto-header "from")
4784 (setq new-art-buf-name
4785 (concat
4786 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 "date")
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 "*"))
4797 (if (and (gnus-buffer-live-p new-art-buf-name)
4798 (with-current-buffer new-art-buf-name
4799 (derived-mode-p 'gnus-sticky-article-mode)))
4800 (switch-to-buffer new-art-buf-name)
4801 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4802 (gnus-sticky-article-mode))
4803 (setq gnus-article-buffer new-art-buf-name))
4804 (gnus-summary-recenter)
4805 (gnus-summary-position-point))
4807 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4808 "Kill the given sticky article BUFFER.
4809 If none is given, assume the current buffer and kill it if it has
4810 `gnus-sticky-article-mode'."
4811 (interactive)
4812 (unless buffer
4813 (setq buffer (current-buffer)))
4814 (with-current-buffer buffer
4815 (when (derived-mode-p 'gnus-sticky-article-mode)
4816 (gnus-kill-buffer buffer))))
4818 (defun gnus-kill-sticky-article-buffers (arg)
4819 "Kill all sticky article buffers.
4820 If a prefix ARG is given, ask for confirmation."
4821 (interactive "P")
4822 (dolist (buf (gnus-buffers))
4823 (with-current-buffer buf
4824 (when (derived-mode-p 'gnus-sticky-article-mode)
4825 (if (not arg)
4826 (gnus-kill-buffer buf)
4827 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4828 (gnus-kill-buffer buf)))))))
4830 ;;;
4831 ;;; Gnus MIME viewing functions
4832 ;;;
4835 "Format of the MIME buttons.
4837 Valid specifiers include:
4838 %t The MIME type
4839 %T MIME type, along with additional info
4840 %n The `name' parameter
4841 %d The description, if any
4842 %l The length of the encoded part
4843 %p The part identifier number
4844 %e Dots if the part isn't displayed
4846 General format specifiers can also be used. See Info node
4847 `(gnus)Formatting Variables'.")
4849 (defvar gnus-tmp-type)
4850 (defvar gnus-tmp-type-long)
4851 (defvar gnus-tmp-name)
4852 (defvar gnus-tmp-description)
4853 (defvar gnus-tmp-id)
4854 (defvar gnus-tmp-length)
4855 (defvar gnus-tmp-dots)
4856 (defvar gnus-tmp-info)
4857 (defvar gnus-tmp-pressed-details)
4859 (defvar gnus-mime-button-line-format-alist
4860 '((?t gnus-tmp-type ?s)
4861 (?T gnus-tmp-type-long ?s)
4862 (?n gnus-tmp-name ?s)
4863 (?d gnus-tmp-description ?s)
4864 (?p gnus-tmp-id ?s)
4865 (?l gnus-tmp-length ?d)
4866 (?e gnus-tmp-dots ?s)))
4868 (defvar gnus-mime-button-commands
4870 (gnus-mime-view-part "v" "View Interactively...")
4871 (gnus-mime-view-part-as-type "t" "View As Type...")
4872 (gnus-mime-view-part-as-charset "C" "View As charset...")
4873 (gnus-mime-save-part "o" "Save...")
4874 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4875 (gnus-mime-replace-part "r" "Replace part")
4876 (gnus-mime-delete-part "d" "Delete part")
4877 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4878 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4879 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4880 (gnus-mime-view-part-externally "e" "View Externally")
4881 (gnus-mime-print-part "p" "Print")
4882 (gnus-mime-pipe-part "|" "Pipe To Command...")
4883 (gnus-mime-action-on-part "." "Take action on the part...")))
4885 (defun gnus-article-mime-part-status ()
4886 (if gnus-article-mime-handle-alist-1
4887 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4888 " (1 part)"
4889 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4890 ""))
4892 (defvar gnus-mime-button-map
4893 (let ((map (make-sparse-keymap)))
4894 (define-key map [mouse-2] 'gnus-article-push-button)
4895 (define-key map [down-mouse-3] 'gnus-mime-button-menu)
4896 (dolist (c gnus-mime-button-commands)
4897 (define-key map (cadr c) (car c)))
4898 map))
4900 (easy-menu-define
4901 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4902 `("MIME Part"
4903 ,@(mapcar (lambda (c)
4904 (vector (caddr c) (car c) :active t))
4905 gnus-mime-button-commands)))
4907 (defvar gnus-url-button-commands
4908 '((gnus-article-copy-string "u" "Copy URL to kill ring")))
4910 (defvar gnus-url-button-map
4911 (let ((map (make-sparse-keymap)))
4912 (dolist (c gnus-url-button-commands)
4913 (define-key map (cadr c) (car c)))
4914 map))
4916 (easy-menu-define
4917 gnus-url-button-menu gnus-url-button-map "URL button menu."
4918 `("Url Button"
4919 ,@(mapcar (lambda (c)
4920 (vector (caddr c) (car c) :active t))
4921 gnus-url-button-commands)))
4923 (defmacro gnus-bind-mm-vars (&rest body)
4924 "Bind some mm-* variables and execute BODY."
4925 `(let (mm-html-inhibit-images
4926 mm-html-blocked-images
4927 (mm-w3m-safe-url-regexp mm-w3m-safe-url-regexp))
4928 (with-current-buffer
4929 (cond ((derived-mode-p 'gnus-article-mode)
4930 (if (gnus-buffer-live-p gnus-article-current-summary)
4931 gnus-article-current-summary
4932 ;; Maybe we're in a mml-preview buffer
4933 ;; and no group is selected.
4934 (current-buffer)))
4935 ((gnus-buffer-live-p gnus-summary-buffer)
4936 gnus-summary-buffer)
4937 (t (current-buffer)))
4938 (setq mm-html-inhibit-images gnus-inhibit-images
4939 mm-html-blocked-images (gnus-blocked-images))
4940 (when (or (not gnus-newsgroup-name)
4941 (and (stringp gnus-safe-html-newsgroups)
4942 (string-match gnus-safe-html-newsgroups
4943 gnus-newsgroup-name))
4944 (and (consp gnus-safe-html-newsgroups)
4945 (member gnus-newsgroup-name gnus-safe-html-newsgroups)))
4946 (setq mm-w3m-safe-url-regexp nil)))
4947 ,@body))
4949 (defun gnus-mime-button-menu (event prefix)
4950 "Construct a context-sensitive menu of MIME commands."
4952 (save-window-excursion
4953 (let ((pos (event-start event)))
4954 (select-window (posn-window pos))
4955 (goto-char (posn-point pos))
4956 (gnus-article-check-buffer)
4957 (popup-menu gnus-mime-button-menu nil prefix))))
4959 (defun gnus-mime-view-all-parts (&optional handles)
4960 "View all the MIME parts."
4961 (interactive)
4962 (with-current-buffer gnus-article-buffer
4963 (let ((handles (or handles gnus-article-mime-handles))
4964 (mail-parse-charset gnus-newsgroup-charset)
4965 (mail-parse-ignored-charsets
4966 (with-current-buffer gnus-summary-buffer
4967 gnus-newsgroup-ignored-charsets)))
4968 (when handles
4969 (mm-remove-parts handles)
4970 (goto-char (point-min))
4972 (let ((inhibit-read-only t))
4973 (delete-region (point) (point-max))
4974 (gnus-bind-mm-vars (mm-display-parts handles)))))))
4976 (defun gnus-article-jump-to-part (n)
4977 "Jump to MIME part N."
4978 (interactive "P")
4979 (let ((parts (with-current-buffer gnus-article-buffer
4980 (length gnus-article-mime-handle-alist))))
4981 (when (zerop parts)
4982 (error "No such part"))
4983 (pop-to-buffer gnus-article-buffer)
4984 (or n
4985 (setq n (if (= parts 1)
4986 1
4987 (read-number (format "Jump to part (1..%s): " parts)))))
4988 (unless (and (integerp n) (<= n parts) (>= n 1))
4989 (setq n
4990 (progn
4991 (gnus-message 7 "Invalid part `%s', using %s instead."
4992 n parts)
4993 parts)))
4994 (gnus-message 9 "Jumping to part %s." n)
4995 (cond ((>= gnus-auto-select-part 1)
4996 (while (and (<= n parts)
4997 (not (gnus-article-goto-part n)))
4998 (setq n (1+ n))))
4999 ((< gnus-auto-select-part 0)
5000 (while (and (>= n 1)
5001 (not (gnus-article-goto-part n)))
5002 (setq n (1- n))))
5003 (t
5004 (gnus-article-goto-part n)))))
5006 (defvar gnus-mime-buttonized-part-id nil
5007 "ID of a mime part that should be buttonized.
5008 `gnus-mime-save-part-and-strip' and `gnus-mime-delete-part' bind it.")
5010 (eval-when-compile
5011 (defsubst gnus-article-edit-part (handles &optional current-id)
5012 "Edit an article in order to delete a mime part.
5013 This function is exclusively used by `gnus-mime-save-part-and-strip'
5014 and `gnus-mime-delete-part', and not provided at run-time normally."
5015 (gnus-article-edit-article
5016 `(lambda ()
5017 (buffer-disable-undo)
5018 (let ((mail-parse-charset (or gnus-article-charset
5019 ',gnus-newsgroup-charset))
5020 (mail-parse-ignored-charsets
5021 (or gnus-article-ignored-charsets
5022 ',gnus-newsgroup-ignored-charsets))
5023 (mbl mml-buffer-list))
5024 (setq mml-buffer-list nil)
5025 ;; A new text must be inserted before deleting existing ones
5026 ;; at the end so as not to move existing markers of which
5027 ;; the insertion type is t.
5028 (delete-region
5029 (point-min)
5030 (prog1
5031 (goto-char (point-max))
5032 (insert-buffer-substring gnus-original-article-buffer)))
5033 (mime-to-mml ',handles)
5034 (setq gnus-article-mime-handles nil)
5035 (let ((mbl1 mml-buffer-list))
5036 (setq mml-buffer-list mbl)
5037 (set (make-local-variable 'mml-buffer-list) mbl1))
5038 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
5039 `(lambda (no-highlight)
5040 (let ((mail-parse-charset (or gnus-article-charset
5041 ',gnus-newsgroup-charset))
5042 (message-options message-options)
5043 (message-options-set-recipient)
5044 (mail-parse-ignored-charsets
5045 (or gnus-article-ignored-charsets
5046 ',gnus-newsgroup-ignored-charsets)))
5047 (mml-to-mime)
5048 (mml-destroy-buffers)
5049 (remove-hook 'kill-buffer-hook
5050 'mml-destroy-buffers t)
5051 (kill-local-variable 'mml-buffer-list))
5052 (gnus-summary-edit-article-done
5053 ,(or (mail-header-references gnus-current-headers) "")
5054 ,(gnus-group-read-only-p)
5055 ,gnus-summary-buffer no-highlight))
5056 t)
5057 ;; Force buttonizing this part.
5058 (let ((gnus-mime-buttonized-part-id current-id))
5059 (gnus-article-edit-done))
5060 (gnus-configure-windows 'article)
5061 (sit-for 0)
5062 (let ((handles (with-current-buffer gnus-article-buffer
5063 gnus-article-mime-handle-alist)))
5064 ;; `handles' will be nil if there is the only one part
5065 ;; in the article and is deleted.
5066 (when (and handles current-id (integerp gnus-auto-select-part))
5067 (gnus-article-jump-to-part
5068 (min (max (+ current-id gnus-auto-select-part) 1)
5069 (length handles)))))))
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 (seq-filter 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 (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 (decode-coding-string contents coding-system))
5294 (setq buffer-file-coding-system last-coding-system-used))
5295 (mm-disable-multibyte)
5296 (insert contents)
5297 (setq buffer-file-coding-system mm-binary-coding-system))
5298 ;; We do it this way to make `normal-mode' set the appropriate mode.
5299 (unwind-protect
5300 (progn
5301 (setq buffer-file-name (expand-file-name filename))
5302 (normal-mode))
5303 (setq buffer-file-name nil))
5304 (goto-char (point-min)))))
5306 (defun gnus-mime-print-part (&optional handle filename)
5307 "Print the MIME part under point."
5308 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5309 (gnus-article-check-buffer)
5310 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5311 (contents (and handle (mm-get-part handle)))
5312 (file (make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5313 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5314 (when contents
5315 (if printer
5316 (unwind-protect
5317 (progn
5318 (mm-save-part-to-file handle file)
5319 (call-process shell-file-name nil
5320 (generate-new-buffer " *mm*")
5321 nil
5322 shell-command-switch
5323 (mm-mailcap-command
5324 printer file (mm-handle-type handle))))
5325 (delete-file file))
5326 (with-temp-buffer
5327 (insert contents)
5328 (gnus-print-buffer))
5329 (ps-despool filename)))))
5331 (defun gnus-mime-inline-part (&optional handle arg)
5332 "Insert the MIME part under point into the current buffer.
5333 Compressed files like .gz and .bz2 are decompressed."
5334 (interactive (list nil current-prefix-arg))
5335 (gnus-article-check-buffer)
5336 (let* ((inhibit-read-only t)
5337 (b (point))
5338 (btn ;; position where the MIME button exists
5339 (if handle
5340 (if (eq handle (get-text-property b 'gnus-data))
5341 b
5342 (article-goto-body)
5343 (or (text-property-any (point) (point-max) 'gnus-data handle)
5344 (text-property-any (point-min) (point) 'gnus-data handle)))
5345 (setq handle (get-text-property b 'gnus-data))
5346 b))
5347 start)
5348 (when handle
5349 (when (= b (prog1
5350 btn
5351 (setq start (next-single-property-change btn 'gnus-data
5352 nil (point-max))
5353 btn (previous-single-property-change start
5354 'gnus-data))))
5355 (setq b btn))
5356 (if (and (not arg) (mm-handle-undisplayer handle))
5357 (progn
5358 (setq b (copy-marker b)
5359 btn (copy-marker btn))
5360 (mm-remove-part handle))
5361 (cond
5362 ((not arg) nil)
5363 ((numberp arg)
5364 (if (mm-handle-undisplayer handle)
5365 (mm-remove-part handle)))
5366 ((mm-handle-undisplayer handle)
5367 (mm-remove-part handle)))
5368 (goto-char start)
5369 (unless (bolp)
5370 ;; This is a header button.
5371 (forward-line 1))
5372 (mm-display-inline handle))
5373 ;; Toggle the button appearance between `[button]...' and `[button]'.
5374 (when (markerp btn)
5375 (setq btn (prog1 (marker-position btn)
5376 (set-marker btn nil))))
5377 (goto-char btn)
5378 (let ((displayed-p (mm-handle-displayed-p handle)))
5379 (gnus-insert-mime-button handle (get-text-property btn 'gnus-part)
5380 (list displayed-p))
5381 (delete-region
5382 (point)
5383 (next-single-property-change (point) 'gnus-data nil (point-max)))
5384 (setq start (point))
5386 (progn
5387 (goto-char start)
5388 (unless (or displayed-p (eolp))
5389 ;; Add extra newline.
5390 (insert (propertize (buffer-substring (1- start) start)
5391 'gnus-undeletable t))))
5392 ;; We're in the article header.
5393 (delete-char -1)
5394 (dolist (ovl (overlays-in btn (point)))
5395 (overlay-put ovl 'gnus-button-attachment-extra t)
5396 (overlay-put ovl 'face nil))
5397 (save-restriction
5398 (message-narrow-to-field)
5399 (let ((gnus-treatment-function-alist
5400 '((gnus-treat-highlight-headers
5401 gnus-article-highlight-headers))))
5402 (gnus-treat-article 'head)))))
5403 (when (markerp b)
5404 (setq b (prog1 (marker-position b)
5405 (set-marker b nil))))
5406 (goto-char b))))
5408 (defun gnus-mime-set-charset-parameters (handle charset)
5409 "Set CHARSET to parameters in HANDLE.
5410 CHARSET may either be a string or a symbol."
5411 (unless (stringp charset)
5412 (setq charset (symbol-name charset)))
5413 (if (stringp (car handle))
5414 (dolist (h (cdr handle))
5415 (gnus-mime-set-charset-parameters h charset))
5416 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5417 "message/external-body")
5418 (progn
5419 (unless (mm-handle-cache handle)
5420 (mm-extern-cache-contents handle))
5421 (mm-handle-cache handle))
5422 handle)))
5423 (param (assq 'charset (cdr type))))
5424 (if param
5425 (setcdr param charset)
5426 (setcdr type (cons (cons 'charset charset) (cdr type)))))))
5428 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5429 "Insert the MIME part under point into the current buffer using the
5430 specified charset."
5431 (interactive (list nil current-prefix-arg))
5432 (gnus-article-check-buffer)
5433 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5434 (fun (get-text-property (point) 'gnus-callback))
5435 (gnus-newsgroup-ignored-charsets 'gnus-all)
5436 charset form preferred parts)
5437 (when handle
5438 (when (prog1
5439 (and fun
5440 (setq charset
5441 (or (cdr (assq
5442 arg
5443 gnus-summary-show-article-charset-alist))
5444 (read-coding-system "Charset: "))))
5445 (if (mm-handle-undisplayer handle)
5446 (mm-remove-part handle)))
5447 (gnus-mime-set-charset-parameters handle charset)
5448 (when (and (consp (setq form (cdr-safe fun)))
5449 (setq form (ignore-errors
5450 (assq 'gnus-mime-display-alternative form)))
5451 (setq preferred (caddr form))
5452 (progn
5453 (when (eq (car preferred) 'quote)
5454 (setq preferred (cadr preferred)))
5455 (not (equal preferred
5456 (get-text-property (point) 'gnus-data))))
5457 (setq parts (get-text-property (point) 'gnus-part))
5458 (setq parts (cdr (assq parts
5459 gnus-article-mime-handle-alist)))
5460 (equal (mm-handle-media-type parts) "multipart/alternative")
5461 (setq parts (reverse (cdr parts))))
5462 (setcar (cddr form)
5463 (list 'quote (or (cadr (member preferred parts))
5464 (car parts)))))
5465 (funcall fun handle)))))
5467 (defun gnus-mime-view-part-externally (&optional handle)
5468 "View the MIME part under point with an external viewer."
5469 (interactive)
5470 (gnus-article-check-buffer)
5471 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5472 (mm-inlined-types nil)
5473 (mail-parse-charset gnus-newsgroup-charset)
5474 (mail-parse-ignored-charsets
5475 (with-current-buffer gnus-summary-buffer
5476 gnus-newsgroup-ignored-charsets))
5477 (type (mm-handle-media-type handle))
5478 (method (mailcap-mime-info type))
5479 (mm-enable-external t))
5480 (if (not (stringp method))
5481 (gnus-mime-view-part-as-type
5482 nil (lambda (type) (stringp (mailcap-mime-info type))))
5483 (when handle
5484 (mm-display-part handle nil t)))))
5486 (defun gnus-mime-view-part-internally (&optional handle)
5487 "View the MIME part under point with an internal viewer.
5488 If no internal viewer is available, use an external viewer."
5489 (interactive)
5490 (gnus-article-check-buffer)
5491 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5492 (mm-inlined-types '(".*"))
5493 (mm-inline-large-images t)
5494 (mail-parse-charset gnus-newsgroup-charset)
5495 (mail-parse-ignored-charsets
5496 (with-current-buffer gnus-summary-buffer
5497 gnus-newsgroup-ignored-charsets))
5498 (inhibit-read-only t))
5499 (if (not (mm-inlinable-p handle))
5500 (gnus-mime-view-part-as-type
5501 nil (lambda (type) (mm-inlinable-p handle type)))
5502 (when handle
5503 (gnus-bind-mm-vars (mm-display-part handle nil t))))))
5505 (defun gnus-mime-action-on-part (&optional action)
5506 "Do something with the MIME attachment at (point)."
5507 (interactive
5508 (list (gnus-completing-read "Action" (mapcar 'car gnus-mime-action-alist) t)))
5509 (gnus-article-check-buffer)
5510 (let ((action-pair (assoc action gnus-mime-action-alist)))
5511 (if action-pair
5512 (funcall (cdr action-pair)))))
5514 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5515 "Call FUNCTION on MIME part N.
5516 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as its only argument.
5517 If INTERACTIVE, call FUNCTION interactively."
5518 (let (window frame)
5519 ;; Check whether the article is displayed.
5520 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5521 (setq window (get-buffer-window gnus-article-buffer t))
5522 (frame-visible-p (setq frame (window-frame window))))
5523 (error "No article is displayed"))
5524 (with-current-buffer gnus-article-buffer
5525 ;; Check whether the article displays the right contents.
5526 (unless (with-current-buffer gnus-summary-buffer
5527 (eq gnus-current-article (gnus-summary-article-number)))
5528 (error "You should select the right article first"))
5529 (if n
5530 (setq n (prefix-numeric-value n))
5531 (let ((pt (point)))
5532 (setq n (or (get-text-property pt 'gnus-part)
5533 (and (not (bobp))
5534 (get-text-property (1- pt) 'gnus-part))
5535 (get-text-property (prog2
5536 (forward-line 1)
5537 (point)
5538 (goto-char pt))
5539 'gnus-part)
5540 (get-text-property
5541 (or (and (setq pt (previous-single-property-change
5542 pt 'gnus-part))
5543 (1- pt))
5544 (next-single-property-change (point) 'gnus-part)
5545 (point))
5546 'gnus-part)
5547 1))))
5548 ;; Check whether the specified part exists.
5549 (when (> n (length gnus-article-mime-handle-alist))
5550 (error "No such part")))
5551 (unless
5552 (progn
5553 ;; To select the window is needed so that the cursor
5554 ;; might be visible on the MIME button.
5555 (select-window (prog1
5556 window
5557 (setq window (selected-window))
5558 ;; Article may be displayed in the other frame.
5559 (select-frame-set-input-focus
5560 (prog1
5561 frame
5562 (setq frame (selected-frame))))))
5563 (when (gnus-article-goto-part n)
5564 ;; We point the cursor and the arrow at the MIME button
5565 ;; when the `function' prompt the user for something.
5566 (unless (and (pos-visible-in-window-p)
5567 (> (count-lines (point) (window-end))
5568 (/ (1- (window-height)) 3)))
5569 (recenter (/ (1- (window-height)) 3)))
5570 (let ((cursor-in-non-selected-windows t)
5571 (overlay-arrow-string "=>")
5572 (overlay-arrow-position (point-marker)))
5573 (unwind-protect
5574 (cond
5575 ((and no-handle interactive)
5576 (call-interactively function))
5577 (no-handle
5578 (funcall function))
5579 (interactive
5580 (call-interactively
5581 function (get-text-property (point) 'gnus-data)))
5582 (t
5583 (funcall function
5584 (get-text-property (point) 'gnus-data))))
5585 (set-marker overlay-arrow-position nil)
5586 (unless gnus-auto-select-part
5587 (select-frame-set-input-focus frame)
5588 (select-window window))))
5589 t))
5590 (if gnus-inhibit-mime-unbuttonizing
5591 ;; This is the default though the program shouldn't reach here.
5592 (error "No such part")
5593 ;; The part which doesn't have the MIME button is selected.
5594 ;; So, we display all the buttons and redo it.
5595 (let ((gnus-inhibit-mime-unbuttonizing t))
5596 (gnus-summary-show-article)
5597 (gnus-article-part-wrapper n function no-handle))))))
5599 (defun gnus-article-pipe-part (n)
5600 "Pipe MIME part N, which is the numerical prefix."
5601 (interactive "P")
5602 (gnus-article-part-wrapper n 'mm-pipe-part))
5604 (defun gnus-article-save-part (n)
5605 "Save MIME part N, which is the numerical prefix."
5606 (interactive "P")
5607 (gnus-article-part-wrapper n 'mm-save-part))
5609 (defun gnus-article-interactively-view-part (n)
5610 "View MIME part N interactively, which is the numerical prefix."
5611 (interactive "P")
5612 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5614 (defun gnus-article-copy-part (n)
5615 "Copy MIME part N, which is the numerical prefix."
5616 (interactive "P")
5617 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5619 (defun gnus-article-view-part-as-charset (n)
5620 "View MIME part N using a specified charset.
5621 N is the numerical prefix."
5622 (interactive "P")
5623 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5625 (defun gnus-article-view-part-externally (n)
5626 "View MIME part N externally, which is the numerical prefix."
5627 (interactive "P")
5628 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5630 (defun gnus-article-inline-part (n)
5631 "Inline MIME part N, which is the numerical prefix."
5632 (interactive "P")
5633 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5635 (defun gnus-article-save-part-and-strip (n)
5636 "Save MIME part N and replace it with an external body.
5637 N is the numerical prefix."
5638 (interactive "P")
5639 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5641 (defun gnus-article-replace-part (n)
5642 "Replace MIME part N with an external body.
5643 N is the numerical prefix."
5644 (interactive "P")
5645 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5647 (defun gnus-article-delete-part (n)
5648 "Delete MIME part N and add some information about the removed part.
5649 N is the numerical prefix."
5650 (interactive "P")
5651 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5653 (defun gnus-article-view-part-as-type (n)
5654 "Choose a MIME media type, and view part N as such.
5655 N is the numerical prefix."
5656 (interactive "P")
5657 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5659 (defun gnus-article-mime-match-handle-first (condition)
5660 (if condition
5661 (let (n)
5662 (dolist (ihandle gnus-article-mime-handle-alist)
5663 (if (and (cond
5664 ((functionp condition)
5665 (funcall condition (cdr ihandle)))
5666 ((eq condition 'undisplayed)
5667 (not (or (mm-handle-undisplayer (cdr ihandle))
5668 (equal (mm-handle-media-type (cdr ihandle))
5669 "multipart/alternative"))))
5670 ((eq condition 'undisplayed-alternative)
5671 (not (mm-handle-undisplayer (cdr ihandle))))
5672 (t t))
5673 (gnus-article-goto-part (car ihandle))
5674 (or (not n) (< (car ihandle) n)))
5675 (setq n (car ihandle))))
5676 (or n 1))
5677 1))
5679 (defun gnus-article-view-part (&optional n)
5680 "View MIME part N, which is the numerical prefix.
5681 If the part is already shown, hide the part. If N is nil, view
5682 all parts."
5683 (interactive "P")
5684 (with-current-buffer gnus-article-buffer
5685 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5686 gnus-article-mime-match-handle-function)))
5687 (when (> n (length gnus-article-mime-handle-alist))
5688 (error "No such part"))
5689 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5690 (when (gnus-article-goto-part n)
5691 (if (equal (car handle) "multipart/alternative")
5692 (progn
5693 (beginning-of-line) ;; Make it toggle subparts
5694 (gnus-article-press-button))
5695 (when (eq (gnus-mm-display-part handle) 'internal)
5696 (gnus-set-window-start)))))))
5698 (defsubst gnus-article-mime-total-parts ()
5699 (if (bufferp (car gnus-article-mime-handles))
5700 1 ;; single part
5701 (1- (length gnus-article-mime-handles))))
5703 (defun gnus-mm-display-part (handle)
5704 "Display HANDLE and fix MIME button."
5705 (let ((id (get-text-property (point) 'gnus-part))
5706 (point (point))
5707 (inhibit-read-only t)
5708 (window (selected-window))
5709 (mail-parse-charset gnus-newsgroup-charset)
5710 (mail-parse-ignored-charsets
5711 (if (gnus-buffer-live-p gnus-summary-buffer)
5712 (with-current-buffer gnus-summary-buffer
5713 gnus-newsgroup-ignored-charsets)
5714 nil))
5715 start retval)
5716 (unwind-protect
5717 (progn
5718 (let ((win (gnus-get-buffer-window (current-buffer) t)))
5719 (when win
5720 (select-window win)
5721 (goto-char point)))
5722 (setq start (next-single-property-change point 'gnus-data
5723 nil (point-max))
5724 point (previous-single-property-change start 'gnus-data))
5725 (if (mm-handle-displayed-p handle)
5726 ;; This will remove the part.
5727 (setq point (copy-marker point)
5728 retval (mm-display-part handle))
5729 (let ((part (or (and (mm-inlinable-p handle)
5730 (mm-inlined-p handle)
5731 t)
5732 (with-temp-buffer
5733 (gnus-bind-mm-vars
5734 (setq retval (mm-display-part handle)))
5735 (unless (zerop (buffer-size))
5736 (buffer-string))))))
5737 (goto-char start)
5738 (unless (bolp)
5739 ;; This is a header button.
5740 (forward-line 1))
5741 (cond ((stringp part)
5742 (save-restriction
5743 (narrow-to-region (point)
5744 (progn
5745 (insert part)
5747 (point)))
5748 (gnus-treat-article nil id
5749 (gnus-article-mime-total-parts)
5750 (mm-handle-media-type handle))
5751 (mm-handle-set-undisplayer
5752 handle
5753 `(lambda ()
5754 (let ((inhibit-read-only t))
5755 (delete-region ,(copy-marker (point-min) t)
5756 ,(point-max-marker)))))))
5757 (part
5758 (mm-display-inline handle))))))
5759 (when (markerp point)
5760 (setq point (prog1 (marker-position point)
5761 (set-marker point nil))))
5762 (goto-char point)
5763 ;; Toggle the button appearance between `[button]...' and `[button]'.
5764 (let ((displayed-p (mm-handle-displayed-p handle)))
5765 (gnus-insert-mime-button handle id (list displayed-p))
5766 (delete-region
5767 (point)
5768 (next-single-property-change (point) 'gnus-data nil (point-max)))
5769 (setq start (point))
5771 (progn
5772 (goto-char start)
5773 (unless (or displayed-p (eolp))
5774 ;; Add extra newline.
5775 (insert (propertize (buffer-substring (1- start) start)
5776 'gnus-undeletable t))))
5777 ;; We're in the article header.
5778 (delete-char -1)
5779 (dolist (ovl (overlays-in point (point)))
5780 (overlay-put ovl 'gnus-button-attachment-extra t)
5781 (overlay-put ovl 'face nil))
5782 (save-restriction
5783 (message-narrow-to-field)
5784 (let ((gnus-treatment-function-alist
5785 '((gnus-treat-highlight-headers
5786 gnus-article-highlight-headers))))
5787 (gnus-treat-article 'head)))))
5788 (goto-char point)
5789 (if (window-live-p window)
5790 (select-window window)))
5791 retval))
5793 (defun gnus-article-goto-part (n)
5794 "Go to MIME part N."
5795 (when gnus-break-pages
5796 (widen))
5797 (article-goto-body)
5798 (prog1
5799 (let ((start (or (text-property-any (point) (point-max) 'gnus-part n)
5800 ;; There may be header buttons.
5801 (text-property-any (point-min) (point) 'gnus-part n)))
5802 part handle end next handles)
5803 (when start
5804 (goto-char start)
5805 (if (setq handle (get-text-property start 'gnus-data))
5806 start
5807 ;; Go to the displayed subpart, assuming this is
5808 ;; multipart/alternative.
5809 (setq part start
5810 end (point-at-eol))
5811 (while (and (not handle)
5812 part
5813 (< part end)
5814 (setq next (text-property-not-all part end
5815 'gnus-data nil)))
5816 (setq part next
5817 handle (get-text-property part 'gnus-data))
5818 (push (cons handle part) handles)
5819 (unless (mm-handle-displayed-p handle)
5820 (setq handle nil
5821 part (text-property-any part end 'gnus-data nil))))
5822 (unless handle
5823 ;; No subpart is displayed, so we find preferred one.
5824 (setq part
5825 (cdr (assq (mm-preferred-alternative
5826 (nreverse (mapcar 'car handles)))
5827 handles))))
5828 (if part
5829 (goto-char (1+ part))
5830 start))))
5831 (when gnus-break-pages
5832 (gnus-narrow-to-page))))
5834 (defun gnus-insert-mime-button (handle id &optional displayed)
5835 (let ((gnus-tmp-name
5836 (or (mm-handle-filename handle)
5837 (mail-content-type-get (mm-handle-type handle) 'url)
5838 ""))
5839 (gnus-tmp-id id)
5840 (gnus-tmp-type (mm-handle-media-type handle))
5841 (gnus-tmp-description (or (mm-handle-description handle) ""))
5842 (gnus-tmp-dots
5843 (if (if displayed (car displayed)
5844 (mm-handle-displayed-p handle))
5845 "" "..."))
5846 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5847 (buffer-size)))
5848 gnus-tmp-type-long b e)
5849 (when (string-match ".*/" gnus-tmp-name)
5850 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5851 (setq gnus-tmp-type-long (concat gnus-tmp-type
5852 (and (not (equal gnus-tmp-name ""))
5853 (concat "; " gnus-tmp-name))))
5854 (unless (equal gnus-tmp-description "")
5855 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5856 (setq b (point))
5857 (gnus-eval-format
5858 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5859 `(keymap ,gnus-mime-button-map
5860 gnus-callback gnus-mm-display-part
5861 gnus-part ,gnus-tmp-id
5862 article-type annotation
5863 gnus-data ,handle
5864 rear-nonsticky t))
5865 (setq e (if (bolp)
5866 ;; Exclude a newline.
5867 (1- (point))
5868 (point)))
5869 (when gnus-article-button-face
5870 (overlay-put (make-overlay b e nil t)
5871 'face gnus-article-button-face))
5872 (widget-convert-button
5873 'link b e
5874 :mime-handle handle
5875 :action 'gnus-widget-press-button
5876 :button-keymap gnus-mime-button-map
5877 :help-echo
5878 (lambda (widget)
5879 (format
5880 "%S: %s the MIME part; %S: more options"
5881 'mouse-2
5882 (if (mm-handle-displayed-p (widget-get widget :mime-handle))
5883 "hide" "show")
5884 'down-mouse-3)))))
5886 (defun gnus-widget-press-button (elems _el)
5887 (goto-char (widget-get elems :from))
5888 (gnus-article-press-button))
5890 (defvar gnus-displaying-mime nil)
5892 (defun gnus-display-mime (&optional ihandles)
5893 "Display the MIME parts."
5894 (save-excursion
5895 (save-selected-window
5896 (let ((window (get-buffer-window gnus-article-buffer))
5897 (point (point)))
5898 (when window
5899 (select-window window)
5900 ;; We have to do this since selecting the window
5901 ;; may change the point. So we set the window point.
5902 (set-window-point window point)))
5903 (let ((handles ihandles)
5904 (inhibit-read-only t))
5905 (cond (handles)
5906 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5907 (when gnus-article-emulate-mime
5908 (mm-uu-dissect-text-parts handles)))
5909 (gnus-article-emulate-mime
5910 (setq handles (mm-uu-dissect))))
5911 (when (and (not ihandles)
5912 (not gnus-displaying-mime))
5913 ;; Top-level call; we clean up.
5914 (when gnus-article-mime-handles
5915 (mm-destroy-parts gnus-article-mime-handles)
5916 (setq gnus-article-mime-handle-alist nil));; A trick.
5917 (setq gnus-article-mime-handles handles)
5918 ;; We allow users to glean info from the handles.
5919 (when gnus-article-mime-part-function
5920 (gnus-mime-part-function handles)))
5921 (if (and handles
5922 (or (not (stringp (car handles)))
5923 (cdr handles)))
5924 (progn
5925 (when (and (not ihandles)
5926 (not gnus-displaying-mime))
5927 ;; Clean up for mime parts.
5928 (article-goto-body)
5929 (delete-region (point) (point-max)))
5930 (let ((gnus-displaying-mime t))
5931 (gnus-mime-display-part handles)))
5932 (save-restriction
5933 (article-goto-body)
5934 (narrow-to-region (point) (point-max))
5935 (gnus-treat-article nil 1 1 "text/plain")
5936 (widen)))
5937 (unless ihandles
5938 ;; Highlight the headers.
5939 (save-excursion
5940 (save-restriction
5941 (article-goto-body)
5942 (narrow-to-region (point-min) (point))
5943 (gnus-article-save-original-date
5944 (gnus-treat-article 'head)))))))
5945 ;; Cope with broken MIME messages.
5946 (goto-char (point-max))
5947 (unless (bolp)
5950 (defcustom gnus-mime-display-multipart-as-mixed nil
5953 If t, it overrides nil values of
5954 `gnus-mime-display-multipart-alternative-as-mixed' and
5955 `gnus-mime-display-multipart-related-as-mixed'."
5956 :group 'gnus-article-mime
5957 :type 'boolean)
5959 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5961 :version "22.1"
5962 :group 'gnus-article-mime
5963 :type 'boolean)
5965 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5969 `mm-discouraged-alternatives') images or other material inside a
5971 :version "22.1"
5972 :group 'gnus-article-mime
5973 :type 'boolean)
5975 (defcustom gnus-mime-display-attachment-buttons-in-header t
5976 "Add attachment buttons in the end of the header of an article.
5977 Since MIME attachments tend to be put at the end of an article, we may
5978 overlook them if there is a huge body. This option offers you a copy
5979 of all non-inlinable MIME parts as buttons shown in front of an article.
5980 If nil, don't show those extra buttons."
5981 :version "25.1"
5982 :group 'gnus-article-mime
5983 :type 'boolean)
5985 (defun gnus-mime-display-part (handle)
5986 (cond
5987 ;; Maybe a broken MIME message.
5988 ((null handle))
5989 ;; Single part.
5990 ((not (stringp (car handle)))
5991 (gnus-mime-display-single handle))
5992 ;; User-defined multipart
5993 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5994 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
5995 handle))
5996 ;; multipart/alternative
5997 ((and (equal (car handle) "multipart/alternative")
5998 (not (or gnus-mime-display-multipart-as-mixed
5999 gnus-mime-display-multipart-alternative-as-mixed)))
6000 (let ((id (1+ (length gnus-article-mime-handle-alist))))
6001 (push (cons id handle) gnus-article-mime-handle-alist)
6002 (gnus-mime-display-alternative (cdr handle) nil nil id)))
6003 ;; multipart/related
6004 ((and (equal (car handle) "multipart/related")
6005 (not (or gnus-mime-display-multipart-as-mixed
6006 gnus-mime-display-multipart-related-as-mixed)))
6007 (gnus-mime-display-part (cadr handle)))
6008 ((equal (car handle) "multipart/signed")
6009 (gnus-add-wash-type 'signed)
6010 (gnus-mime-display-security handle))
6011 ((equal (car handle) "multipart/encrypted")
6012 (gnus-add-wash-type 'encrypted)
6013 (gnus-mime-display-security handle))
6014 ;; Other multiparts are handled like multipart/mixed.
6015 (t
6016 (gnus-mime-display-mixed (cdr handle)))))
6018 (defun gnus-mime-part-function (handles)
6019 (if (stringp (car handles))
6020 (mapcar 'gnus-mime-part-function (cdr handles))
6021 (funcall gnus-article-mime-part-function handles)))
6023 (defun gnus-mime-display-mixed (handles)
6024 (mapcar 'gnus-mime-display-part handles))
6026 (defun gnus-mime-display-single (handle)
6027 (let ((type (mm-handle-media-type handle))
6028 (ignored gnus-ignored-mime-types)
6029 (not-attachment t)
6030 display text)
6031 (catch 'ignored
6032 (progn
6033 (while ignored
6034 (when (string-match (pop ignored) type)
6035 (throw 'ignored nil)))
6036 (if (and (not (and (if (gnus-buffer-live-p gnus-summary-buffer)
6037 (with-current-buffer gnus-summary-buffer
6038 gnus-inhibit-images)
6039 gnus-inhibit-images)
6041 (setq not-attachment
6042 (and (not (mm-inline-override-p handle))
6043 (or (not (mm-handle-disposition handle))
6044 (equal (car (mm-handle-disposition handle))
6045 "inline")
6046 (mm-attachment-override-p handle))))
6047 (mm-automatic-display-p handle)
6048 (or (and
6049 (mm-inlinable-p handle)
6050 (mm-inlined-p handle))
6051 (mm-automatic-external-display-p type)))
6052 (setq display t)
6053 (when (equal (mm-handle-media-supertype handle) "text")
6054 (setq text t)))
6055 (let ((id (car (rassq handle gnus-article-mime-handle-alist)))
6056 beg)
6057 (unless id
6058 (setq id (1+ (length gnus-article-mime-handle-alist)))
6059 (push (cons id handle) gnus-article-mime-handle-alist))
6060 (when (and display
6061 (equal (mm-handle-media-supertype handle) "message"))
6062 (insert-char
6064 (cond ((not (bolp)) 2)
6066 (t 1))))
6067 (when (or (not display)
6068 (not (gnus-unbuttonized-mime-type-p type))
6069 (eq id gnus-mime-buttonized-part-id))
6070 (gnus-insert-mime-button
6071 handle id (list (or display (and not-attachment text)))))
6072 (setq beg (point))
6073 (cond
6074 (display
6075 (let ((mail-parse-charset gnus-newsgroup-charset)
6076 (mail-parse-ignored-charsets
6077 (save-excursion (condition-case ()
6078 (set-buffer gnus-summary-buffer)
6079 (error))
6080 gnus-newsgroup-ignored-charsets)))
6081 (gnus-bind-mm-vars (mm-display-part handle t))))
6082 ((and text not-attachment)
6083 (mm-display-inline handle)))
6084 (goto-char (point-max))
6086 (gnus-article-insert-newline)
6087 (if (prog1
6089 (unless (eobp) (forward-char 1)))
6090 (gnus-article-insert-newline)
6091 (put-text-property (point) (point-max) 'gnus-undeletable t))
6092 (goto-char (point-max)))
6093 ;; Do highlighting.
6094 (save-excursion
6095 (save-restriction
6096 (narrow-to-region beg (point))
6097 (if (eq handle gnus-article-mime-handles)
6098 ;; The format=flowed case.
6099 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
6100 ;; Don't count signature parts that are never displayed.
6101 ;; The part number should be re-calculated supposing this
6102 ;; might be a message/rfc822 part.
6103 (let (handles)
6104 (dolist (part gnus-article-mime-handles)
6105 (unless (or (stringp part)
6106 (equal (car (mm-handle-type part))
6107 "application/pgp-signature"))
6108 (push part handles)))
6109 (gnus-treat-article
6110 nil (length (memq handle handles)) (length handles)
6111 (mm-handle-media-type handle)))))))))))
6113 (defun gnus-unbuttonized-mime-type-p (type)
6114 "Say whether TYPE is to be unbuttonized."
6115 (unless gnus-inhibit-mime-unbuttonizing
6116 (when (catch 'found
6117 (let ((types gnus-unbuttonized-mime-types))
6118 (while types
6119 (when (string-match (pop types) type)
6120 (throw 'found t)))))
6121 (not (catch 'found
6122 (let ((types gnus-buttonized-mime-types))
6123 (while types
6124 (when (string-match (pop types) type)
6125 (throw 'found t)))))))))
6127 (defun gnus-article-insert-newline ()
6128 "Insert a newline, but mark it as undeletable."
6131 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
6132 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
6133 (ihandles handles)
6134 (point (point))
6135 handle (inhibit-read-only t) from begend not-pref)
6136 (save-window-excursion
6137 (save-restriction
6138 (when ibegend
6139 (narrow-to-region (car ibegend)
6140 (or (cdr ibegend)
6141 (progn
6142 (goto-char (car ibegend))
6143 (forward-line 2)
6144 (point))))
6145 (delete-region (point-min) (point-max))
6146 (mm-remove-parts handles))
6147 (setq begend (list (point-marker)))
6148 ;; Do the toggle.
6149 (unless (setq not-pref (cadr (member preferred ihandles)))
6150 (setq not-pref (car ihandles)))
6151 (when (or ibegend
6152 (not preferred)
6153 (not (gnus-unbuttonized-mime-type-p
6154 "multipart/alternative")))
6155 (add-text-properties
6156 (setq from (point))
6157 (progn
6158 (insert (format "%d. " id))
6159 (point))
6160 `(gnus-callback
6161 (lambda (handles)
6162 (unless ,(not ibegend)
6163 (setq gnus-article-mime-handle-alist
6164 ',gnus-article-mime-handle-alist))
6165 (gnus-mime-display-alternative
6166 ',ihandles ',not-pref ',begend ,id))
6167 keymap ,gnus-mime-button-map
6168 mouse-face ,gnus-article-mouse-face
6169 face ,gnus-article-button-face
6170 gnus-part ,id
6171 article-type multipart
6172 rear-nonsticky t))
6173 (widget-convert-button 'link from (point)
6174 :action 'gnus-widget-press-button)
6175 ;; Do the handles
6176 (while (setq handle (pop handles))
6177 (add-text-properties
6178 (setq from (point))
6179 (progn
6180 (insert (format "(%c) %-18s"
6181 (if (equal handle preferred) ?* ? )
6182 (mm-handle-media-type handle)))
6183 (point))
6184 `(gnus-callback
6185 (lambda (handles)
6186 (unless ,(not ibegend)
6187 (setq gnus-article-mime-handle-alist
6188 ',gnus-article-mime-handle-alist))
6189 (gnus-mime-display-alternative
6190 ',ihandles ',handle ',begend ,id))
6191 keymap ,gnus-mime-button-map
6192 mouse-face ,gnus-article-mouse-face
6193 face ,gnus-article-button-face
6194 gnus-part ,id
6195 gnus-data ,handle
6196 rear-nonsticky t))
6197 (widget-convert-button 'link from (point)
6198 :action 'gnus-widget-press-button)
6199 (insert " "))
6201 (when preferred
6202 (if (stringp (car preferred))
6203 (gnus-display-mime preferred)
6204 (let ((mail-parse-charset gnus-newsgroup-charset)
6205 (mail-parse-ignored-charsets
6206 (with-current-buffer gnus-summary-buffer
6207 gnus-newsgroup-ignored-charsets)))
6208 (gnus-bind-mm-vars (mm-display-part preferred))
6209 ;; Do highlighting.
6210 (save-excursion
6211 (save-restriction
6212 (narrow-to-region (car begend) (point-max))
6213 (gnus-treat-article
6214 nil (length gnus-article-mime-handle-alist)
6215 (gnus-article-mime-total-parts)
6216 (mm-handle-media-type preferred))))))
6217 (goto-char (point-max))
6218 (setcdr begend (point-marker)))))
6219 (when ibegend
6220 (goto-char point)))
6221 ;; Redraw attachment buttons in the header.
6222 (when gnus-mime-display-attachment-buttons-in-header
6223 (gnus-mime-buttonize-attachments-in-header)))
6225 (defconst gnus-article-wash-status-strings
6226 (let ((alist '((cite "c" "Possible hidden citation text"
6227 " " "All citation text visible")
6228 (headers "h" "Hidden headers"
6229 " " "All headers visible.")
6230 (pgp "p" "Encrypted or signed message status hidden"
6231 " " "No hidden encryption nor digital signature status")
6232 (signature "s" "Signature has been hidden"
6233 " " "Signature is visible")
6234 (overstrike "o" "Overstrike (^H) characters applied"
6235 " " "No overstrike characters applied")
6236 (emphasis "e" "/*_Emphasis_*/ characters applied"
6237 " " "No /*_emphasis_*/ characters applied")))
6238 result)
6239 (dolist (entry alist result)
6240 (let ((key (nth 0 entry))
6241 (on (copy-sequence (nth 1 entry)))
6242 (on-help (nth 2 entry))
6243 (off (copy-sequence (nth 3 entry)))
6244 (off-help (nth 4 entry)))
6245 (put-text-property 0 1 'help-echo on-help on)
6246 (put-text-property 0 1 'help-echo off-help off)
6247 (push (list key on off) result))))
6248 "Alist of strings describing wash status in the mode line.
6249 Each entry has the form (KEY ON OF), where the KEY is a symbol
6250 representing the particular washing function, ON is the string to use
6251 in the article mode line when the washing function is active, and OFF
6252 is the string to use when it is inactive.")
6254 (defun gnus-article-wash-status-entry (key value)
6255 (let ((entry (assoc key gnus-article-wash-status-strings)))
6256 (if value (nth 1 entry) (nth 2 entry))))
6258 (defun gnus-article-wash-status ()
6259 "Return a string which display status of article washing."
6260 (with-current-buffer gnus-article-buffer
6261 (let ((cite (memq 'cite gnus-article-wash-types))
6262 (headers (memq 'headers gnus-article-wash-types))
6263 (boring (memq 'boring-headers gnus-article-wash-types))
6264 (pgp (memq 'pgp gnus-article-wash-types))
6265 (pem (memq 'pem gnus-article-wash-types))
6266 (signed (memq 'signed gnus-article-wash-types))
6267 (encrypted (memq 'encrypted gnus-article-wash-types))
6268 (signature (memq 'signature gnus-article-wash-types))
6269 (overstrike (memq 'overstrike gnus-article-wash-types))
6270 (emphasis (memq 'emphasis gnus-article-wash-types)))
6271 (concat
6272 (gnus-article-wash-status-entry 'cite cite)
6273 (gnus-article-wash-status-entry 'headers (or headers boring))
6274 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
6275 (gnus-article-wash-status-entry 'signature signature)
6276 (gnus-article-wash-status-entry 'overstrike overstrike)
6277 (gnus-article-wash-status-entry 'emphasis emphasis)))))
6279 (defun gnus-add-wash-type (type)
6280 "Add a washing of TYPE to the current status."
6281 (add-to-list 'gnus-article-wash-types type))
6283 (defun gnus-delete-wash-type (type)
6284 "Add a washing of TYPE to the current status."
6285 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
6287 (defun gnus-add-image (category image)
6288 "Add IMAGE of CATEGORY to the list of displayed images."
6289 (let ((entry (assq category gnus-article-image-alist)))
6290 (unless entry
6291 (setq entry (list category))
6292 (push entry gnus-article-image-alist))
6293 (nconc entry (list image))))
6295 (defun gnus-delete-images (category)
6296 "Delete all images in CATEGORY."
6297 (let ((entry (assq category gnus-article-image-alist)))
6298 (dolist (image (cdr entry))
6299 (gnus-remove-image image category))
6300 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
6301 (gnus-delete-wash-type category)))
6303 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6305 (defun gnus-article-maybe-hide-headers ()
6306 "Hide unwanted headers if `gnus-have-all-headers' is nil.
6307 Provided for backwards compatibility."
6308 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
6309 (not (with-current-buffer gnus-summary-buffer
6310 gnus-have-all-headers)))
6311 (not gnus-inhibit-hiding))
6312 (article-hide-headers)))
6314 (declare-function shr-put-image "shr" (data alt &optional flags))
6316 (defun gnus-shr-put-image (data alt &optional flags)
6317 "Put image DATA with a string ALT. Enable image to be deleted."
6318 (let ((image (if flags
6319 (shr-put-image data (propertize (or alt "*")
6320 'gnus-image-category 'shr)
6321 flags)
6322 ;; Old `shr-put-image' doesn't take the optional `flags'
6323 ;; argument.
6324 (shr-put-image data (propertize (or alt "*")
6325 'gnus-image-category 'shr)))))
6326 (when image
6327 (gnus-add-image 'shr image))))
6329 (defun gnus-article-mime-handles (&optional alist id all)
6330 (if alist
6331 (let ((i 1) newid flat)
6332 (dolist (handle alist flat)
6333 (setq newid (append id (list i))
6334 i (1+ i))
6335 (if (stringp (car handle))
6336 (setq flat (nconc flat (gnus-article-mime-handles
6337 (cdr handle) newid all)))
6338 (delq (rassq handle all) all)
6339 (setq flat (nconc flat (list (cons newid handle)))))))
6340 (let ((flat (list nil)))
6341 ;; Assume that elements of `gnus-article-mime-handle-alist'
6342 ;; are in the decreasing order, but unnumbered subsidiaries
6343 ;; in each element are in the increasing order.
6344 (dolist (handle (reverse gnus-article-mime-handle-alist))
6345 (if (stringp (cadr handle))
6346 (when (cddr handle)
6347 (setq flat (nconc flat (gnus-article-mime-handles
6348 (cddr handle) (list (car handle)) flat))))
6349 (delq (rassq (cdr handle) flat) flat)
6350 (setq flat (nconc flat (list (cons (list (car handle))
6351 (cdr handle)))))))
6352 (setq flat (cdr flat))
6353 (mapc (lambda (handle)
6354 (if (cdar handle)
6355 ;; This is a hidden (i.e. unnumbered) handle.
6356 (progn
6357 (setcar handle
6358 (1+ (caar gnus-article-mime-handle-alist)))
6359 (push handle gnus-article-mime-handle-alist))
6360 (setcar handle (caar handle))))
6361 flat)
6362 flat)))
6364 (defun gnus-mime-buttonize-attachments-in-header (&optional interactive)
6365 "Show attachments as buttons in the end of the header of an article.
6366 This function toggles the display when called interactively. Note that
6367 buttons to be added to the header are only the ones that aren't inlined
6368 in the body. Use `gnus-header-face-alist' to highlight buttons."
6369 (interactive (list t))
6370 (gnus-with-article-buffer
6371 (let ((case-fold-search t) buttons st)
6372 (save-excursion
6373 (save-restriction
6374 (widen)
6375 (article-narrow-to-head)
6376 ;; Header buttons exist?
6377 (while (and (not buttons)
6379 (when (get-char-property (match-end 0)
6380 'gnus-button-attachment-extra)
6381 (setq buttons (match-beginning 0))))
6382 (widen)
6383 (when buttons
6384 ;; Delete header buttons.
6385 (delete-region buttons (if (re-search-forward "^[^ ]" nil t)
6386 (match-beginning 0)
6387 (point-max))))
6388 (unless (and interactive buttons)
6389 ;; Find buttons.
6390 (setq buttons nil)
6391 (dolist (button (gnus-article-mime-handles))
6392 (unless (mm-handle-undisplayer (cdr button))
6393 (push button buttons)))
6394 (when buttons
6395 ;; Add header buttons.
6396 (article-goto-body)
6397 (forward-line -1)
6398 (narrow-to-region (point) (point))
6399 (insert "Attachment" (if (cdr buttons) "s" "") ":")
6400 (dolist (button (nreverse buttons))
6401 (setq st (point))
6402 (insert " ")
6403 (gnus-insert-mime-button (cdr button) (car button))
6405 (delete-region (point) (point-max))
6406 (when (> (current-column) (window-width))
6407 (goto-char st)
6409 (end-of-line)))
6411 (dolist (ovl (overlays-in (point-min) (point)))
6412 (overlay-put ovl 'gnus-button-attachment-extra t)
6413 (overlay-put ovl 'face nil))
6414 (let ((gnus-treatment-function-alist
6415 '((gnus-treat-highlight-headers
6416 gnus-article-highlight-headers))))
6417 (gnus-treat-article 'head)))))))))
6419 ;;; Article savers.
6421 (defun gnus-output-to-file (file-name)
6422 "Append the current article to a file named FILE-NAME.
6423 If `gnus-article-save-coding-system' is non-nil, it is used to encode
6424 text and used as the value of the coding cookie which is added to the
6425 top of a file. Otherwise, this function saves a raw article without
6426 the coding cookie."
6427 (let* ((artbuf (current-buffer))
6428 (file-name-coding-system nnmail-pathname-coding-system)
6429 (coding gnus-article-save-coding-system)
6430 (coding-system-for-read (if coding
6431 nil ;; Rely on the coding cookie.
6432 mm-text-coding-system))
6433 (coding-system-for-write (or coding
6434 mm-text-coding-system-for-write
6435 mm-text-coding-system))
6436 (exists (file-exists-p file-name)))
6437 (with-temp-buffer
6438 (when exists
6439 (insert-file-contents file-name)
6440 (goto-char (point-min))
6441 ;; Remove the existing coding cookie.
6443 (delete-region (match-beginning 0) (match-end 0))))
6444 (goto-char (point-max))
6445 (insert-buffer-substring artbuf)
6446 ;; Append newline at end of the buffer as separator, and then
6447 ;; save it to file.
6448 (goto-char (point-max))
6450 (when coding
6451 ;; If the coding system is not suitable to encode the text,
6452 ;; ask a user for a proper one.
6453 (setq coding (coding-system-base
6454 (save-window-excursion
6455 (select-safe-coding-system (point-min) (point-max)
6456 coding))))
6457 (setq coding-system-for-write
6458 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
6459 coding))
6460 (goto-char (point-min))
6461 ;; Add the coding cookie.
6463 coding-system-for-write)))
6464 (if exists
6465 (progn
6466 (write-region (point-min) (point-max) file-name nil 'no-message)
6467 (message "Appended to %s" file-name))
6468 (write-region (point-min) (point-max) file-name))))
6469 t)
6471 (defun gnus-narrow-to-page (&optional arg)
6472 "Narrow the article buffer to a page.
6473 If given a numerical ARG, move forward ARG pages."
6474 (interactive "P")
6475 (setq arg (if arg (prefix-numeric-value arg) 0))
6476 (with-current-buffer gnus-article-buffer
6477 (widen)
6478 ;; Remove any old next/prev buttons.
6479 (when (gnus-visual-p 'page-marker)
6480 (let ((inhibit-read-only t))
6481 (gnus-remove-text-with-property 'gnus-prev)
6482 (gnus-remove-text-with-property 'gnus-next)))
6483 (let (st nd pt)
6484 (when (save-excursion
6485 (cond ((< arg 0)
6486 (if (re-search-backward page-delimiter nil 'move (abs arg))
6487 (prog1
6488 (setq nd (match-beginning 0)
6489 pt nd)
6490 (when (re-search-backward page-delimiter nil t)
6491 (setq st (match-end 0))))
6492 (when (re-search-forward page-delimiter nil t)
6493 (setq nd (match-beginning 0)
6494 pt (point-min)))))
6495 ((> arg 0)
6496 (if (re-search-forward page-delimiter nil 'move arg)
6497 (prog1
6498 (setq st (match-end 0)
6499 pt st)
6500 (when (re-search-forward page-delimiter nil t)
6501 (setq nd (match-beginning 0))))
6502 (when (re-search-backward page-delimiter nil t)
6503 (setq st (match-end 0)
6504 pt (point-max)))))
6505 (t
6506 (when (re-search-backward page-delimiter nil t)
6507 (goto-char (setq st (match-end 0))))
6508 (when (re-search-forward page-delimiter nil t)
6509 (setq nd (match-beginning 0)))
6510 (or st nd))))
6511 (setq gnus-page-broken t)
6512 (when pt (goto-char pt))
6513 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6514 (when (gnus-visual-p 'page-marker)
6515 (save-excursion
6516 (when nd
6517 (goto-char nd)
6518 (gnus-insert-next-page-button))
6519 (when st
6520 (goto-char st)
6521 (gnus-insert-prev-page-button))))))))
6523 ;; Article mode commands
6525 (defun gnus-article-goto-next-page ()
6526 "Show the next page of the article."
6527 (interactive)
6528 (when (gnus-article-next-page)
6529 (goto-char (point-min))
6530 (gnus-article-read-summary-keys nil ?n)))
6533 (defun gnus-article-goto-prev-page ()
6534 "Show the previous page of the article."
6535 (interactive)
6536 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6537 (gnus-article-read-summary-keys nil ?p)
6538 (gnus-article-prev-page nil)))
6540 ;; This is cleaner but currently breaks `gnus-pick-mode':
6541 ;;
6542 ;; (defun gnus-article-goto-next-page ()
6543 ;; "Show the next page of the article."
6544 ;; (interactive)
6545 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6546 ;; (gnus-summary-next-page)))
6547 ;;
6548 ;; (defun gnus-article-goto-prev-page ()
6549 ;; "Show the next page of the article."
6550 ;; (interactive)
6551 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6552 ;; (gnus-summary-prev-page)))
6554 (defun gnus-article-next-page (&optional lines)
6555 "Show the next page of the current article.
6556 If end of article, return non-nil. Otherwise return nil.
6557 Argument LINES specifies lines to be scrolled up."
6558 (interactive "p")
6559 (move-to-window-line (- -1 scroll-margin))
6560 (if (and (not (and gnus-article-over-scroll
6561 (> (count-lines (window-start) (point-max))
6562 (+ (or lines (1- (window-height))) scroll-margin))))
6563 (save-excursion
6564 (end-of-line)
6565 (and (pos-visible-in-window-p) ;Not continuation line.
6566 (>= (point) (point-max)))))
6567 ;; Nothing in this page.
6568 (if (or (not gnus-page-broken)
6569 (save-excursion
6570 (save-restriction
6571 (widen)
6572 (forward-line)
6573 (eobp)))) ;Real end-of-buffer?
6574 (progn
6575 (when gnus-article-over-scroll
6576 (gnus-article-next-page-1 lines))
6577 t) ;Nothing more.
6578 (gnus-narrow-to-page 1) ;Go to next page.
6579 nil)
6580 ;; More in this page.
6581 (gnus-article-next-page-1 lines)
6582 nil))
6584 (defun gnus-article-beginning-of-window ()
6585 "Move point to the beginning of the window.
6586 The point is placed at the line number which `scroll-margin'
6587 specifies."
6588 ;; There is an obscure bug in Emacs that makes it impossible to
6589 ;; scroll past big pictures in the article buffer. Try to fix
6590 ;; this by adding a sanity check by counting the lines visible.
6591 (when (> (count-lines (window-start) (window-end)) 30)
6592 (move-to-window-line
6593 (min (max 0 scroll-margin)
6594 (max 1 (- (window-height)
6595 (if mode-line-format 1 0)
6596 (if header-line-format 1 0)
6597 2))))))
6599 (defvar scroll-in-place)
6601 (defun gnus-article-next-page-1 (lines)
6602 (condition-case ()
6603 (let ((scroll-in-place nil)
6604 (auto-window-vscroll nil))
6605 (scroll-up lines))
6606 (end-of-buffer
6607 ;; Long lines may cause an end-of-buffer error.
6608 (goto-char (point-max))))
6609 (gnus-article-beginning-of-window))
6611 (defun gnus-article-prev-page (&optional lines)
6612 "Show previous page of current article.
6613 Argument LINES specifies lines to be scrolled down."
6614 (interactive "p")
6615 (move-to-window-line 0)
6616 (if (and gnus-page-broken
6617 (bobp)
6618 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6619 (progn
6620 (gnus-narrow-to-page -1) ;Go to previous page.
6621 (goto-char (point-max))
6622 (recenter (if gnus-article-over-scroll
6623 (if lines
6624 (max (+ lines scroll-margin) 3)
6625 (- (window-height) 2))
6626 -1)))
6627 (prog1
6628 (condition-case ()
6629 (let ((scroll-in-place nil))
6630 (scroll-down lines))
6631 (beginning-of-buffer
6632 (goto-char (point-min))))
6633 (gnus-article-beginning-of-window))))
6635 (defun gnus-article-only-boring-p ()
6636 "Decide whether there is only boring text remaining in the article.
6638 not have a face in `gnus-article-boring-faces'."
6639 (when (and gnus-article-skip-boring
6640 (boundp 'gnus-article-boring-faces)
6641 (symbol-value 'gnus-article-boring-faces))
6642 (save-excursion
6643 (let ((inhibit-point-motion-hooks t))
6644 (catch 'only-boring
6646 (forward-char -1)
6647 (when (not (gnus-intersection
6648 (gnus-faces-at (point))
6649 (symbol-value 'gnus-article-boring-faces)))
6650 (throw 'only-boring nil)))
6651 (throw 'only-boring t))))))
6653 (defun gnus-article-refer-article ()
6654 "Read article specified by message-id around point."
6655 (interactive)
6656 (save-excursion
6660 (let ((msg-id (concat "<" (match-string 0) ">")))
6661 (set-buffer gnus-summary-buffer)
6662 (gnus-summary-refer-article msg-id))
6663 (error "No references around point"))))
6665 (defun gnus-article-show-summary ()
6666 "Reconfigure windows to show summary buffer."
6667 (interactive)
6668 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6669 (error "There is no summary buffer for this article buffer")
6670 (gnus-article-set-globals)
6671 (gnus-configure-windows 'article)
6672 (gnus-summary-goto-subject gnus-current-article)
6673 (gnus-summary-position-point)))
6675 (defun gnus-article-describe-briefly ()
6676 "Describe article mode commands briefly."
6677 (interactive)
6678 (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")))
6680 (defun gnus-article-check-buffer ()
6681 "Beep if not in an article buffer."
6682 (unless (derived-mode-p 'gnus-article-mode)
6683 (error "Command invoked outside of a Gnus article buffer")))
6685 (defvar gnus-pick-mode)
6687 (defun gnus-article-read-summary-keys (&optional _arg key not-restore-window)
6688 "Read a summary buffer key sequence and execute it from the article buffer."
6689 (interactive "P")
6690 (gnus-article-check-buffer)
6691 (let ((nosaves
6692 '("q" "Q" "r" "\C-c\C-f" "m" "a" "f" "WDD" "WDW"
6693 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6694 "=" "^" "\M-^" "|"))
6695 (nosave-but-article
6697 "An" "Ap" [?A (meta return)] [?A delete]))
6698 (nosave-in-article
6699 '("AS" "\C-d"))
6700 keys new-sum-point)
6701 (with-current-buffer gnus-article-current-summary
6702 (let (gnus-pick-mode)
6703 (setq unread-command-events (nconc unread-command-events
6704 (list (or key last-command-event)))
6705 keys (read-key-sequence nil t))))
6707 (message "")
6709 (cond
6710 ((eq (aref keys (1- (length keys))) ?\C-h)
6711 (gnus-article-describe-bindings (substring keys 0 -1)))
6712 ((or (member keys nosaves)
6713 (member keys nosave-but-article)
6714 (member keys nosave-in-article))
6715 (let (func)
6716 (with-current-buffer gnus-article-current-summary
6717 ;; We disable the pick minor mode commands.
6718 (let (gnus-pick-mode)
6719 (setq func (key-binding keys t))))
6720 (if (or (not func)
6721 (numberp func))
6722 (ding)
6723 (unless (member keys nosave-in-article)
6724 (set-buffer gnus-article-current-summary))
6725 (when (and (symbolp func)
6726 (get func 'disabled))
6727 (error "Function %s disabled" func))
6728 (call-interactively func)
6729 (setq new-sum-point (point)))
6730 (when (member keys nosave-but-article)
6731 (pop-to-buffer gnus-article-buffer))))
6732 (t
6733 ;; These commands should restore window configuration.
6734 (let ((obuf (current-buffer))
6735 (owin (current-window-configuration))
6736 win func in-buffer selected new-sum-start new-sum-hscroll err)
6737 (cond (not-restore-window
6738 (pop-to-buffer gnus-article-current-summary)
6739 (setq win (selected-window)))
6740 ((setq win (get-buffer-window gnus-article-current-summary))
6741 (select-window win))
6742 (t
6743 (let ((summary-buffer gnus-article-current-summary))
6744 (gnus-configure-windows 'article)
6745 (unless (setq win (get-buffer-window summary-buffer 'visible))
6746 (let ((gnus-buffer-configuration
6747 '((article ((vertical 1.0
6748 (summary 0.25 point)
6749 (article 1.0)))))))
6750 (gnus-configure-windows 'article))
6751 (setq win (get-buffer-window summary-buffer 'visible)))
6752 (select-frame-set-input-focus (window-frame win))
6753 (select-window win))))
6754 (setq in-buffer (current-buffer))
6755 ;; We disable the pick minor mode commands.
6756 (setq func (let (gnus-pick-mode)
6757 (key-binding keys t)))
6758 (when (and (symbolp func)
6759 (get func 'disabled))
6760 (error "Function %s disabled" func))
6761 (if (and func
6762 (functionp func)
6763 (condition-case code
6764 (progn
6765 (call-interactively func)
6766 t)
6767 (error
6768 (setq err code)
6769 nil)))
6770 (progn
6771 (when (eq win (selected-window))
6772 (setq new-sum-point (point)
6773 new-sum-start (window-start win)
6774 new-sum-hscroll (window-hscroll win)))
6775 (when (or (eq in-buffer (current-buffer))
6776 (when (eq obuf (current-buffer))
6777 (set-buffer in-buffer)
6778 t))
6779 (setq selected (ignore-errors (gnus-summary-select-article)))
6780 (set-buffer obuf)
6781 (unless not-restore-window
6782 (set-window-configuration owin))
6783 (when (and (eq selected 'old)
6784 new-sum-point)
6785 (set-window-start (get-buffer-window (current-buffer))
6786 1)
6787 (set-window-point (get-buffer-window (current-buffer))
6788 (if (article-goto-body)
6789 (1- (point))
6790 (point))))
6791 (when (and (not not-restore-window)
6792 new-sum-point
6793 (window-live-p win)
6794 (with-current-buffer (window-buffer win)
6795 (derived-mode-p 'gnus-summary-mode)))
6796 (set-window-point win new-sum-point)
6797 (set-window-start win new-sum-start)
6798 (set-window-hscroll win new-sum-hscroll))))
6799 (set-window-configuration owin)
6800 (if err
6801 (signal (car err) (cdr err))
6802 (ding))))))))
6804 (defun gnus-article-read-summary-send-keys ()
6805 (interactive)
6806 (let ((unread-command-events (list ?S)))
6807 (gnus-article-read-summary-keys)))
6809 (defun gnus-article-describe-key (key)
6810 "Display documentation of the function invoked by KEY.
6811 KEY is a string or a vector."
6812 (interactive (list (let ((cursor-in-echo-area t))
6813 (read-key-sequence "Describe key: "))))
6814 (gnus-article-check-buffer)
6815 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6816 gnus-article-read-summary-send-keys))
6817 (with-current-buffer gnus-article-current-summary
6818 (setq unread-command-events
6819 (nconc
6820 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6821 (list 'meta (- x 128))
6822 x))
6823 key)
6824 unread-command-events))
6825 (let ((cursor-in-echo-area t)
6826 gnus-pick-mode)
6827 (describe-key (read-key-sequence nil t))))
6828 (describe-key key)))
6830 (defun gnus-article-describe-key-briefly (key &optional insert)
6831 "Display documentation of the function invoked by KEY.
6832 KEY is a string or a vector."
6833 (interactive (list (let ((cursor-in-echo-area t))
6834 (read-key-sequence "Describe key: "))
6835 current-prefix-arg))
6836 (gnus-article-check-buffer)
6837 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6838 gnus-article-read-summary-send-keys))
6839 (with-current-buffer gnus-article-current-summary
6840 (setq unread-command-events
6841 (nconc
6842 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6843 (list 'meta (- x 128))
6844 x))
6845 key)
6846 unread-command-events))
6847 (let ((cursor-in-echo-area t)
6848 gnus-pick-mode)
6849 (describe-key-briefly (read-key-sequence nil t) insert)))
6850 (describe-key-briefly key insert)))
6852 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6853 (defvar gnus-agent-summary-mode)
6854 (defvar gnus-draft-mode)
6855 (defvar help-xref-stack-item)
6856 (defvar help-xref-following)
6858 (defun gnus-article-describe-bindings (&optional prefix)
6859 "Show a list of all defined keys, and their definitions.
6860 The optional argument PREFIX, if non-nil, should be a key sequence;
6861 then we display only bindings that start with that prefix."
6862 (interactive)
6863 (gnus-article-check-buffer)
6864 (let ((keymap (copy-keymap gnus-article-mode-map))
6865 (map (copy-keymap gnus-article-send-map))
6866 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6867 (summap (make-sparse-keymap))
6868 parent agent draft)
6869 (define-key keymap "S" map)
6870 (define-key map [t] nil)
6871 (define-key summap [t] 'undefined)
6872 (with-current-buffer gnus-article-current-summary
6873 (dolist (key sumkeys)
6874 (define-key summap key (key-binding key (current-local-map))))
6875 (set-keymap-parent
6876 keymap
6877 (if (setq parent (keymap-parent gnus-article-mode-map))
6878 (prog1
6879 (setq parent (copy-keymap parent))
6880 (set-keymap-parent parent summap))
6881 summap))
6882 (set-keymap-parent map (key-binding "S"))
6883 (let (key def gnus-pick-mode)
6884 (while sumkeys
6885 (setq key (pop sumkeys))
6886 (cond ((and (vectorp key) (= (length key) 1)
6887 (consp (setq def (aref key 0)))
6888 (numberp (car def)) (numberp (cdr def)))
6889 (when (< (max (car def) (cdr def)) 128)
6890 (setq sumkeys
6891 (append (mapcar
6892 #'vector
6893 (nreverse (gnus-uncompress-range def)))
6894 sumkeys))))
6895 ((setq def (key-binding key))
6896 (unless (eq def 'undefined)
6897 (define-key keymap key def))))))
6898 (when (boundp 'gnus-agent-summary-mode)
6899 (setq agent gnus-agent-summary-mode))
6900 (when (boundp 'gnus-draft-mode)
6901 (setq draft gnus-draft-mode)))
6902 (with-temp-buffer
6903 (use-local-map keymap)
6904 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6905 (set (make-local-variable 'gnus-draft-mode) draft)
6906 (describe-bindings prefix))
6907 (let ((item `((lambda (prefix)
6908 (with-current-buffer ,(current-buffer)
6909 (gnus-article-describe-bindings prefix)))
6910 ,prefix)))
6911 ;; Loading `help-mode' here is necessary if `describe-bindings'
6912 ;; is replaced with something, e.g. `helm-descbinds'.
6913 (require 'help-mode)
6914 (with-current-buffer (let (help-xref-following) (help-buffer))
6915 (setq help-xref-stack-item item)))))
6917 (defun gnus-article-reply-with-original (&optional wide)
6918 "Start composing a reply mail to the current message.
6919 The text in the region will be yanked. If the region isn't active,
6920 the entire article will be yanked."
6921 (interactive)
6922 (let ((article (cdr gnus-article-current))
6923 contents)
6924 (if (not (and transient-mark-mode mark-active))
6925 (with-current-buffer gnus-summary-buffer
6926 (gnus-summary-reply (list (list article)) wide))
6927 (setq contents (buffer-substring (point) (mark t)))
6928 ;; Deactivate active regions.
6929 (when transient-mark-mode
6930 (setq mark-active nil))
6931 (with-current-buffer gnus-summary-buffer
6932 (gnus-summary-reply
6933 (list (list article contents)) wide)))))
6935 (defun gnus-article-wide-reply-with-original ()
6936 "Start composing a wide reply mail to the current message.
6937 The text in the region will be yanked. If the region isn't active,
6938 the entire article will be yanked."
6939 (interactive)
6940 (gnus-article-reply-with-original t))
6942 (defun gnus-article-followup-with-original ()
6943 "Compose a followup to the current article.
6944 The text in the region will be yanked. If the region isn't active,
6945 the entire article will be yanked."
6946 (interactive)
6947 (let ((article (cdr gnus-article-current))
6948 contents)
6949 (if (not (and transient-mark-mode mark-active))
6950 (with-current-buffer gnus-summary-buffer
6951 (gnus-summary-followup (list (list article))))
6952 (setq contents (buffer-substring (point) (mark t)))
6953 ;; Deactivate active regions.
6954 (when transient-mark-mode
6955 (setq mark-active nil))
6956 (with-current-buffer gnus-summary-buffer
6957 (gnus-summary-followup
6958 (list (list article contents)))))))
6960 (defun gnus-article-hide (&optional arg force)
6961 "Hide all the gruft in the current article.
6962 This means that signatures, cited text and (some) headers will be
6963 hidden.
6964 If given a prefix, show the hidden text instead."
6965 (interactive (append (gnus-article-hidden-arg) (list 'force)))
6966 (gnus-with-article-buffer
6967 (article-hide-headers arg)
6968 (article-hide-list-identifiers)
6969 (gnus-article-hide-citation-maybe arg force)
6970 (article-hide-signature arg)))
6972 (defun gnus-check-group-server ()
6973 ;; Make sure the connection to the server is alive.
6974 (unless (gnus-server-opened
6975 (gnus-find-method-for-group gnus-newsgroup-name))
6976 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
6977 (gnus-request-group gnus-newsgroup-name t)))
6979 (declare-function nneething-get-file-name "nneething" (id))
6981 (defun gnus-request-article-this-buffer (article group)
6982 "Get an article and insert it into this buffer."
6983 (let (do-update-line sparse-header)
6984 (prog1
6985 (save-excursion
6986 (erase-buffer)
6987 (gnus-kill-all-overlays)
6988 (setq bidi-paragraph-direction nil)
6989 (setq group (or group gnus-newsgroup-name))
6991 ;; Using `gnus-request-article' directly will insert the article into
6992 ;; `nntp-server-buffer' - so we'll save some time by not having to
6993 ;; copy it from the server buffer into the article buffer.
6995 ;; We only request an article by message-id when we do not have the
6996 ;; headers for it, so we'll have to get those.
6997 (when (stringp article)
6998 (gnus-read-header article))
7000 ;; If the article number is negative, that means that this article
7001 ;; doesn't belong in this newsgroup (possibly), so we find its
7002 ;; message-id and request it by id instead of number.
7003 (when (and (numberp article)
7004 gnus-summary-buffer
7005 (get-buffer gnus-summary-buffer)
7006 (gnus-buffer-exists-p gnus-summary-buffer))
7007 (with-current-buffer gnus-summary-buffer
7008 (let ((header (gnus-summary-article-header article)))
7009 (when (< article 0)
7010 (cond
7011 ((memq article gnus-newsgroup-sparse)
7012 ;; This is a sparse gap article.
7013 (setq do-update-line article)
7014 (setq gnus-newsgroup-sparse
7015 (delq article gnus-newsgroup-sparse))
7016 (setq article (mail-header-id header))
7017 (setq sparse-header (gnus-read-header article)))
7018 ((vectorp header)
7019 ;; It's a real article.
7020 (setq article (mail-header-id header)))
7021 (t
7022 ;; It is an extracted pseudo-article.
7023 (setq article 'pseudo)
7024 (gnus-request-pseudo-article header))))
7026 (let ((method (gnus-find-method-for-group
7027 gnus-newsgroup-name)))
7028 (when (and (eq (car method) 'nneething)
7029 (vectorp header))
7030 (let ((dir (nneething-get-file-name
7031 (mail-header-id header))))
7032 (when (and (stringp dir)
7033 (file-directory-p dir))
7034 (setq article 'nneething)
7035 (gnus-group-enter-directory dir))))))))
7037 (cond
7038 ;; Refuse to select canceled articles.
7039 ((and (numberp article)
7040 gnus-summary-buffer
7041 (get-buffer gnus-summary-buffer)
7042 (gnus-buffer-exists-p gnus-summary-buffer)
7043 (eq (cdr (with-current-buffer gnus-summary-buffer
7044 (assq article gnus-newsgroup-reads)))
7045 gnus-canceled-mark))
7046 nil)
7047 ;; We first check `gnus-original-article-buffer'.
7048 ((and (get-buffer gnus-original-article-buffer)
7049 (numberp article)
7050 (with-current-buffer gnus-original-article-buffer
7051 (and (equal (car gnus-original-article) group)
7052 (eq (cdr gnus-original-article) article))))
7053 ;; `insert-buffer-substring' would incorrectly use the
7054 ;; equivalent of string-make-multibyte which amount to decoding
7055 ;; with locale-coding-system, causing failure of
7056 ;; subsequent decoding.
7057 (insert (with-current-buffer gnus-original-article-buffer
7058 (buffer-substring (point-min) (point-max))))
7059 'article)
7060 ;; Check the backlog.
7061 ((and gnus-keep-backlog
7062 (gnus-backlog-request-article group article (current-buffer)))
7063 'article)
7064 ;; Check asynchronous pre-fetch.
7065 ((gnus-async-request-fetched-article group article (current-buffer))
7066 (gnus-async-prefetch-next group article gnus-summary-buffer)
7067 (when (and (numberp article) gnus-keep-backlog)
7068 (gnus-backlog-enter-article group article (current-buffer)))
7069 'article)
7070 ;; Check the cache.
7071 ((and gnus-use-cache
7072 (numberp article)
7073 (gnus-cache-request-article article group))
7074 'article)
7075 ;; Check the agent cache.
7076 ((gnus-agent-request-article article group)
7077 'article)
7078 ;; Get the article and put into the article buffer.
7079 ((or (stringp article)
7080 (numberp article))
7081 (let ((gnus-override-method gnus-override-method)
7082 (methods (and (stringp article)
7083 (with-current-buffer gnus-summary-buffer
7084 (gnus-refer-article-methods))))
7085 (backend (car (gnus-find-method-for-group
7086 gnus-newsgroup-name)))
7087 result
7088 (inhibit-read-only t))
7089 (when (and (null gnus-override-method)
7090 methods)
7091 (setq gnus-override-method (pop methods)))
7092 (while (not result)
7093 (erase-buffer)
7094 (gnus-kill-all-overlays)
7095 (setq bidi-paragraph-direction nil)
7096 (let ((gnus-newsgroup-name group))
7097 (gnus-check-group-server))
7098 (cond
7099 ((gnus-request-article article group (current-buffer))
7100 (when (numberp article)
7101 (gnus-async-prefetch-next group article
7102 gnus-summary-buffer)
7103 (when gnus-keep-backlog
7104 (gnus-backlog-enter-article
7105 group article (current-buffer)))
7106 (when (and gnus-agent
7107 (gnus-agent-group-covered-p group))
7108 (gnus-agent-store-article article group)))
7109 (setq result 'article))
7110 (methods
7111 (setq gnus-override-method (pop methods)))
7112 ((not (string-match "^400 "
7113 (nnheader-get-report backend)))
7114 ;; If we get 400 server disconnect, reconnect and
7115 ;; retry; otherwise, assume the article has expired.
7116 (setq result 'done))))
7117 (and (eq result 'article) 'article)))
7118 ;; It was a pseudo.
7119 (t article)))
7121 ;; Associate this article with the current summary buffer.
7122 (setq gnus-article-current-summary gnus-summary-buffer)
7124 ;; Take the article from the original article buffer
7125 ;; and place it in the buffer it's supposed to be in.
7126 (when (and (get-buffer gnus-article-buffer)
7127 (equal (buffer-name (current-buffer))
7128 (buffer-name (get-buffer gnus-article-buffer))))
7129 (save-excursion
7130 (if (get-buffer gnus-original-article-buffer)
7131 (set-buffer gnus-original-article-buffer)
7132 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
7133 (buffer-disable-undo)
7134 (setq major-mode 'gnus-original-article-mode)
7135 (setq buffer-read-only t))
7136 (let ((inhibit-read-only t))
7137 (erase-buffer)
7138 (insert-buffer-substring gnus-article-buffer))
7139 (setq gnus-original-article (cons group article)))
7141 ;; Decode charsets.
7142 (run-hooks 'gnus-article-decode-hook)
7143 ;; Mark article as decoded or not.
7144 (setq gnus-article-decoded-p gnus-article-decode-hook))
7146 ;; Update sparse articles.
7147 (when (and do-update-line
7148 (or (numberp article)
7149 (stringp article)))
7150 (let ((buf (current-buffer)))
7151 (set-buffer gnus-summary-buffer)
7152 (gnus-summary-update-article do-update-line sparse-header)
7153 (gnus-summary-goto-subject do-update-line nil t)
7154 (set-window-point (gnus-get-buffer-window (current-buffer) t)
7155 (point))
7156 (set-buffer buf))))))
7158 (defun gnus-block-private-groups (group)
7159 "Allows images in newsgroups to be shown, blocks images in all
7160 other groups."
7161 (if (or (gnus-news-group-p group)
7162 (gnus-member-of-valid 'global group))
7163 ;; Block nothing in news groups.
7164 nil
7165 ;; Block everything anywhere else.
7166 "."))
7168 (defun gnus-blocked-images ()
7169 (if (functionp gnus-blocked-images)
7170 (funcall gnus-blocked-images gnus-newsgroup-name)
7171 gnus-blocked-images))
7173 ;;;
7174 ;;; Article editing
7175 ;;;
7177 (defcustom gnus-article-edit-mode-hook nil
7178 "Hook run in article edit mode buffers."
7179 :group 'gnus-article-various
7180 :type 'hook)
7182 (defvar gnus-article-edit-done-function nil)
7184 (defvar gnus-article-edit-mode-map nil)
7186 ;; Should we be using derived.el for this?
7187 (unless gnus-article-edit-mode-map
7188 (setq gnus-article-edit-mode-map (make-keymap))
7189 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
7191 (gnus-define-keys gnus-article-edit-mode-map
7192 "\C-c?" describe-mode
7193 "\C-c\C-c" gnus-article-edit-done
7194 "\C-c\C-k" gnus-article-edit-exit
7195 "\C-c\C-f\C-t" message-goto-to
7196 "\C-c\C-f\C-o" message-goto-from
7197 "\C-c\C-f\C-b" message-goto-bcc
7198 ;;"\C-c\C-f\C-w" message-goto-fcc
7199 "\C-c\C-f\C-c" message-goto-cc
7200 "\C-c\C-f\C-s" message-goto-subject
7201 "\C-c\C-f\C-r" message-goto-reply-to
7202 "\C-c\C-f\C-n" message-goto-newsgroups
7203 "\C-c\C-f\C-d" message-goto-distribution
7204 "\C-c\C-f\C-f" message-goto-followup-to
7205 "\C-c\C-f\C-m" message-goto-mail-followup-to
7206 "\C-c\C-f\C-k" message-goto-keywords
7207 "\C-c\C-f\C-u" message-goto-summary
7208 "\C-c\C-f\C-i" message-insert-or-toggle-importance
7209 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
7210 "\C-c\C-b" message-goto-body
7211 "\C-c\C-i" message-goto-signature
7213 "\C-c\C-t" message-insert-to
7214 "\C-c\C-n" message-insert-newsgroups
7215 "\C-c\C-o" message-sort-headers
7216 "\C-c\C-e" message-elide-region
7217 "\C-c\C-v" message-delete-not-region
7218 "\C-c\C-z" message-kill-to-signature
7220 "\C-c\C-a" mml-attach-file
7221 "\C-a" message-beginning-of-line
7223 "\M-;" comment-region)
7225 (gnus-define-keys (gnus-article-edit-wash-map
7226 "\C-c\C-w" gnus-article-edit-mode-map)
7227 "f" gnus-article-edit-full-stops))
7229 (easy-menu-define
7230 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
7231 '("Field"
7232 ["Fetch To" message-insert-to t]
7233 ["Fetch Newsgroups" message-insert-newsgroups t]
7234 "----"
7235 ["To" message-goto-to t]
7236 ["From" message-goto-from t]
7237 ["Subject" message-goto-subject t]
7238 ["Cc" message-goto-cc t]
7239 ["Reply-To" message-goto-reply-to t]
7240 ["Summary" message-goto-summary t]
7241 ["Keywords" message-goto-keywords t]
7242 ["Newsgroups" message-goto-newsgroups t]
7243 ["Followup-To" message-goto-followup-to t]
7244 ["Mail-Followup-To" message-goto-mail-followup-to t]
7245 ["Distribution" message-goto-distribution t]
7246 ["Body" message-goto-body t]
7247 ["Signature" message-goto-signature t]))
7249 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
7250 "Major mode for editing articles.
7251 This is an extended text-mode.
7254 (make-local-variable 'gnus-article-edit-done-function)
7255 (make-local-variable 'gnus-prev-winconf)
7256 (set (make-local-variable 'font-lock-defaults)
7257 '(message-font-lock-keywords t))
7258 (set (make-local-variable 'mail-header-separator) "")
7259 (set (make-local-variable 'gnus-article-edit-mode) t)
7260 (easy-menu-add message-mode-field-menu message-mode-map)
7261 (mml-mode)
7262 (setq buffer-read-only nil)
7263 (buffer-enable-undo)
7264 (widen))
7266 (defun gnus-article-edit (&optional force)
7267 "Edit the current article.
7268 This will have permanent effect only in mail groups.
7269 If FORCE is non-nil, allow editing of articles even in read-only
7270 groups."
7271 (interactive "P")
7272 (when (and (not force)
7273 (gnus-group-read-only-p))
7274 (error "The current newsgroup does not support article editing"))
7275 (gnus-with-article-buffer
7276 (article-date-original))
7277 (gnus-article-edit-article
7278 'ignore
7279 `(lambda (no-highlight)
7280 'ignore
7281 (gnus-summary-edit-article-done
7282 ,(or (mail-header-references gnus-current-headers) "")
7283 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
7285 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
7286 "Start editing the contents of the current article buffer."
7287 (let ((winconf (current-window-configuration)))
7288 (set-buffer gnus-article-buffer)
7289 (let ((message-auto-save-directory
7290 ;; Don't associate the article buffer with a draft file.
7291 nil))
7292 (gnus-article-edit-mode))
7293 (funcall start-func)
7294 (set-buffer-modified-p nil)
7295 (gnus-configure-windows 'edit-article)
7296 (setq gnus-article-edit-done-function exit-func)
7297 (setq gnus-prev-winconf winconf)
7298 (unless quiet
7299 (gnus-message 6 "C-c C-c to end edits"))))
7301 (defun gnus-article-edit-done (&optional arg)
7302 "Update the article edits and exit."
7303 (interactive "P")
7304 (let ((func gnus-article-edit-done-function)
7305 (buf (current-buffer))
7306 (start (window-start))
7307 (winconf gnus-prev-winconf))
7308 (widen) ;; Widen it in case that users narrowed the buffer.
7309 (funcall func arg)
7310 (set-buffer buf)
7311 ;; The cache and backlog have to be flushed somewhat.
7312 (when gnus-keep-backlog
7313 (gnus-backlog-remove-article
7314 (car gnus-article-current) (cdr gnus-article-current)))
7315 ;; Flush original article as well.
7316 (gnus-flush-original-article-buffer)
7317 (when gnus-use-cache
7318 (gnus-cache-update-article
7319 (car gnus-article-current) (cdr gnus-article-current)))
7320 ;; We remove all text props from the article buffer.
7321 (kill-all-local-variables)
7322 (set-text-properties (point-min) (point-max) nil)
7323 (gnus-article-mode)
7324 (set-window-configuration winconf)
7325 (set-buffer buf)
7326 (set-window-start (get-buffer-window buf) start)
7327 (set-window-point (get-buffer-window buf) (point)))
7328 (gnus-summary-show-article))
7330 (defun gnus-flush-original-article-buffer ()
7331 (when (get-buffer gnus-original-article-buffer)
7332 (with-current-buffer gnus-original-article-buffer
7333 (setq gnus-original-article nil))))
7335 (defun gnus-article-edit-exit ()
7336 "Exit the article editing without updating."
7337 (interactive)
7338 (when (or (not (buffer-modified-p))
7339 (yes-or-no-p "Article modified; kill anyway? "))
7340 (let ((curbuf (current-buffer))
7341 (p (point))
7342 (window-start (window-start)))
7343 (erase-buffer)
7344 (if (gnus-buffer-live-p gnus-original-article-buffer)
7345 (insert-buffer-substring gnus-original-article-buffer))
7346 (let ((winconf gnus-prev-winconf))
7347 (kill-all-local-variables)
7348 (gnus-article-mode)
7349 (set-window-configuration winconf)
7350 ;; Tippy-toe some to make sure that point remains where it was.
7351 (save-current-buffer
7352 (set-buffer curbuf)
7353 (set-window-start (get-buffer-window (current-buffer)) window-start)
7354 (goto-char p))))
7355 (gnus-summary-show-article)))
7357 (defun gnus-article-edit-full-stops ()
7358 "Interactively repair spacing at end of sentences."
7359 (interactive)
7360 (save-excursion
7361 (goto-char (point-min))
7362 (search-forward-regexp "^$" nil t)
7363 (let ((case-fold-search nil))
7366 ;;;
7367 ;;; Article highlights
7368 ;;;
7370 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
7372 ;;; Internal Variables:
7374 (defcustom gnus-button-url-regexp
7375 (concat
7380 (punct "!?:;.,"))
7381 (concat
7383 ;; Match paired parentheses, e.g. in Wikipedia URLs:
7384 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
7385 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)"
7388 "[" chars punct "]+" "[" chars "]"
7391 "Regular expression that matches URLs."
7392 :version "24.4"
7393 :group 'gnus-article-buttons
7394 :type 'regexp)
7397 "Regular expression that matches a valid FQDN."
7398 :version "26.1"
7399 :group 'gnus-article-buttons
7400 :type 'regexp)
7402 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
7403 (defcustom gnus-button-valid-localpart-regexp
7405 "Regular expression that matches a localpart of mail addresses or MIDs."
7406 :version "22.1"
7407 :group 'gnus-article-buttons
7408 :type 'regexp)
7410 (defcustom gnus-button-man-handler 'manual-entry
7411 "Function to use for displaying man pages.
7412 The function must take at least one argument with a string naming the
7413 man page."
7414 :version "22.1"
7415 :type '(choice (function-item :tag "Man" manual-entry)
7416 (function-item :tag "Woman" woman)
7417 (function :tag "Other"))
7418 :group 'gnus-article-buttons)
7420 (defcustom gnus-button-mid-or-mail-regexp
7422 gnus-button-valid-fqdn-regexp
7424 "Regular expression that matches a message ID or a mail address."
7425 :version "22.1"
7426 :group 'gnus-article-buttons
7427 :type 'regexp)
7429 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
7431 Strings like this can be either a message ID or a mail address. If it is one
7432 of the symbols `mid' or `mail', Gnus will always assume that the string is a
7433 message ID or a mail address, respectively. If this variable is set to the
7434 symbol `ask', always query the user what do do. If it is a function, this
7435 function will be called with the string as its only argument. The function
7436 must return `mid', `mail', `invalid' or `ask'."
7437 :version "22.1"
7438 :group 'gnus-article-buttons
7439 :type '(choice (function-item :tag "Heuristic function"
7440 gnus-button-mid-or-mail-heuristic)
7441 (const ask)
7442 (const mid)
7443 (const mail)))
7445 (defcustom gnus-button-mid-or-mail-heuristic-alist
7447 (-10.0 . "#")
7450 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7451 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7452 (-1.0 . "^[^a-z]+@")
7453 ;;
7455 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7456 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7458 ;;
7459 (-2.0 . "^[0-9]")
7460 (-1.0 . "^[0-9][0-9]")
7461 ;;
7462 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7463 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7464 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7465 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7466 ;;
7467 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7468 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7469 ;; "[0-9]{8,}.*\@"
7470 (-3.0
7471 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7472 ;; "[0-9]{12,}.*\@"
7473 ;; compensation for TDMA dated mail addresses:
7474 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7475 ;;
7477 (-20.0 . "^slrn")
7478 (-20.0 . "^Pine")
7480 (-20.0 . "_-_") ;; Subject change in thread
7481 ;;
7485 ;;
7486 ;; (5.0 . "") ;; $local_part_len <= 7
7487 (10.0 . "^[^0-9]+@")
7488 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7489 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7490 (3.0 . "@stud")
7491 ;;
7492 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7493 ;;
7494 (0.5 . "^[A-Z][a-z]")
7495 (0.5 . "^[A-Z][a-z][a-z]")
7496 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7497 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7498 "An alist of (RATE . REGEXP) pairs for `gnus-button-mid-or-mail-heuristic'.
7500 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7501 address. The REGEXP is processed with `case-fold-search' set to nil."
7502 :version "22.1"
7503 :group 'gnus-article-buttons
7504 :type '(repeat (cons (number :tag "Rate")
7505 (regexp :tag "Regexp"))))
7507 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7508 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7509 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7510 address, `ask' if unsure and `invalid' if the string is invalid."
7511 (let ((case-fold-search nil)
7512 (list gnus-button-mid-or-mail-heuristic-alist)
7513 (result 0) rate regexp lpartlen elem)
7514 (setq lpartlen
7516 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7517 ;; Certain special cases...
7518 (when (string-match
7519 (concat
7523 mid-or-mail)
7524 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7525 (setq result 'mail))
7527 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7528 (setq result 'invalid))
7529 ;; Nothing more to do, if result is not a number here...
7530 (when (numberp result)
7531 (while list
7532 (setq elem (car list)
7533 rate (car elem)
7534 regexp (cdr elem)
7535 list (cdr list))
7536 (when (string-match regexp mid-or-mail)
7537 (setq result (+ result rate))
7538 (gnus-message
7539 9 "`%s' matched `%s', rate `%s', result `%s'."
7540 mid-or-mail regexp rate result)))
7541 (when (<= lpartlen 7)
7542 (setq result (+ result 5.0))
7543 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7544 mid-or-mail result))
7545 (when (>= lpartlen 12)
7546 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7547 (cond
7548 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7549 ;; Long local part should contain realname if e-mail address,
7550 ;; too many digits: message-id.
7551 ;; $score -= 5.0 + 0.1 * $local_part_len;
7552 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7553 (setq result (+ result rate))
7554 (gnus-message
7555 9 "Many digits in `%s', rate `%s', result `%s'."
7556 mid-or-mail rate result))
7557 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*@"
7558 mid-or-mail)
7559 ;; Too few vowels [^aeiouy]{4,}.*@
7560 (setq result (+ result -5.0))
7561 (gnus-message
7562 9 "Few vowels in `%s', rate `%s', result `%s'."
7563 mid-or-mail -5.0 result))
7564 (t
7565 (setq result (+ result 5.0))
7566 (gnus-message
7567 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7568 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7569 ;; Maybe we should make this a customizable alist: (condition . 'result)
7570 (cond
7571 ((symbolp result) result)
7572 ;; Now convert number into proper results:
7573 ((< result -10.0) 'mid)
7574 ((> result 10.0) 'mail)
7575 (t 'ask))))
7577 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7578 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7579 (url-mid (concat "news" ":" mid-or-mail))
7580 (url-mailto (concat "mailto" ":" mid-or-mail)))
7581 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7582 (when (fboundp pref)
7583 (setq guessed
7584 ;; get rid of surrounding angles...
7585 (funcall pref
7587 (if (or (eq 'mid guessed) (eq 'mail guessed))
7588 (setq pref guessed)
7589 (setq pref 'ask)))
7590 (if (eq pref 'ask)
7591 (save-window-excursion
7592 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7593 (setq pref 'mail)
7594 (setq pref 'mid))))
7595 (cond ((eq pref 'mid)
7596 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7597 (gnus-button-handle-news url-mid))
7598 ((eq pref 'mail)
7599 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7600 (gnus-url-mailto url-mailto))
7601 (t (gnus-message 3 "Invalid string.")))))
7603 (defun gnus-button-handle-custom (fun arg)
7604 "Call function FUN on argument ARG.
7605 Both FUN and ARG are supposed to be strings. ARG will be passed
7606 as a symbol to FUN."
7607 (funcall (intern fun)
7608 (if (string-match "^customize-apropos" fun)
7609 arg
7610 (intern arg))))
7614 (defun gnus-button-handle-describe-function (url)
7615 "Call `describe-function' when pushing the corresponding URL button."
7616 (describe-function
7617 (intern
7618 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url))))
7620 (defun gnus-button-handle-describe-variable (url)
7621 "Call `describe-variable' when pushing the corresponding URL button."
7622 (describe-variable
7623 (intern
7624 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url))))
7626 (defun gnus-button-handle-symbol (url)
7627 "Display help on variable or function.
7628 Calls `describe-variable' or `describe-function'."
7629 (let ((sym (intern url)))
7630 (cond
7631 ((fboundp sym) (describe-function sym))
7632 ((boundp sym) (describe-variable sym))
7633 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7635 (defun gnus-button-handle-describe-key (url)
7636 "Call `describe-key' when pushing the corresponding URL button."
7637 (let* ((key-string
7638 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url))
7639 (keys (ignore-errors (eval `(kbd ,key-string)))))
7640 (if keys
7641 (describe-key keys)
7642 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7644 (defun gnus-button-handle-apropos (url)
7645 "Call `apropos' when pushing the corresponding URL button."
7646 (apropos (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7648 (defun gnus-button-handle-apropos-command (url)
7649 "Call `apropos' when pushing the corresponding URL button."
7650 (apropos-command
7651 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7653 (defun gnus-button-handle-apropos-variable (url)
7654 "Call `apropos' when pushing the corresponding URL button."
7655 (apropos-variable
7656 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7658 (defun gnus-button-handle-apropos-documentation (url)
7659 "Call `apropos' when pushing the corresponding URL button."
7660 (apropos-documentation
7661 (replace-regexp-in-string gnus-button-handle-describe-prefix "" url)))
7663 (defun gnus-button-handle-library (url)
7664 "Call `locate-library' when pushing the corresponding URL button."
7665 (gnus-message 9 "url=`%s'" url)
7666 (let* ((lib (locate-library url))
7668 (if (not lib)
7669 (gnus-message 1 "Cannot locate library `%s'." url)
7670 (find-file-read-only file))))
7672 (defcustom gnus-button-man-level 5
7673 "Integer that says how many man-related buttons Gnus will show.
7674 The higher the number, the more buttons will appear and the more false
7675 positives are possible. Note that you can set this variable local to
7676 specific groups. Setting it higher in Unix groups is probably a good idea.
7677 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7678 how to set variables in specific groups."
7679 :version "22.1"
7680 :group 'gnus-article-buttons
7681 :link '(custom-manual "(gnus)Group Parameters")
7682 :type 'integer)
7684 (defcustom gnus-button-emacs-level 5
7685 "Integer that says how many emacs-related buttons Gnus will show.
7686 The higher the number, the more buttons will appear and the more false
7687 positives are possible. Note that you can set this variable local to
7688 specific groups. Setting it higher in Emacs or Gnus related groups is
7689 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7690 `gnus-parameters' on how to set variables in specific groups."
7691 :version "22.1"
7692 :group 'gnus-article-buttons
7693 :link '(custom-manual "(gnus)Group Parameters")
7694 :type 'integer)
7696 (defcustom gnus-button-message-level 5
7697 "Integer that says how many buttons for news or mail messages will appear.
7698 The higher the number, the more buttons will appear and the more false
7699 positives are possible."
7700 ;; mail addresses, MIDs, URLs for news, ...
7701 :version "22.1"
7702 :group 'gnus-article-buttons
7703 :type 'integer)
7705 (defcustom gnus-button-browse-level 5
7706 "Integer that says how many buttons for browsing will appear.
7707 The higher the number, the more buttons will appear and the more false
7708 positives are possible."
7709 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7710 :version "22.1"
7711 :group 'gnus-article-buttons
7712 :type 'integer)
7714 (defcustom gnus-button-alist
7716 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7719 0 t gnus-button-handle-news 2)
7721 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7723 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7724 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7726 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7728 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7730 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7732 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7733 ;; RFC 2368 (The mailto URL scheme)
7735 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7737 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7738 ;; Info Konqueror style <info:/foo/bar baz>.
7739 ;; Must come before " Gnus home-grown style".
7741 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7742 ;; Info, Gnus home-grown style (deprecated) <info://foo/bar+baz>
7744 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7745 ;; Info GNOME style <info:foo#bar_baz>
7747 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7748 ;; Info KDE style <info:(foo)bar baz>
7750 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7752 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7753 ("\\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,]*\\)\\)?"
7754 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7755 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7756 ;; This is custom
7758 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7759 ;; Emacs help commands
7761 ;; regexp doesn't match arguments containing ` '.
7762 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7764 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7766 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7768 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7769 ;; The following entries may lead to many false positives so don't enable
7770 ;; them by default (use a high button level).
7772 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7773 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7775 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7777 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7779 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7781 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7783 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7785 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7787 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7789 ;; Unlike the other regexps we really have to require quoting
7790 ;; here to determine where it ends.
7791 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7792 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7794 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7795 ;; RFC 2396 (2.4.3., delims) ...
7797 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7798 ;; Raw URLs.
7799 (gnus-button-url-regexp
7800 0 (>= gnus-button-browse-level 0) browse-url 0)
7801 ;; man pages
7803 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7804 gnus-button-handle-man 1)
7805 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7807 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7808 gnus-button-handle-man 1)
7809 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7810 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7812 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7813 ;; Recognizing patches to .el files. This is somewhat obscure,
7814 ;; but considering the percentage of Gnus users who hack Emacs
7815 ;; Lisp files...
7817 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7819 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7820 ;; MID or mail: To avoid too many false positives we don't try to catch
7821 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7822 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7823 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7824 ;; so that non-ambiguous entries (see above) match first.
7825 (gnus-button-mid-or-mail-regexp
7826 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7827 "Alist of regexps matching buttons in article bodies.
7829 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7830 REGEXP: is the string (case insensitive) matching text around the button (can
7831 also be Lisp expression evaluating to a string),
7832 BUTTON: is the number of the regexp grouping actually matching the button,
7833 FORM: is a Lisp expression which must eval to true for the button to
7834 be added,
7835 CALLBACK: is the function to call when the user push this button, and each
7836 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7838 CALLBACK can also be a variable, in that case the value of that
7839 variable it the real callback function."
7840 :group 'gnus-article-buttons
7841 :type '(repeat (list (choice regexp variable sexp)
7842 (integer :tag "Button")
7843 (sexp :tag "Form")
7844 (function :tag "Callback")
7845 (repeat :tag "Par"
7846 :inline t
7847 (integer :tag "Regexp group")))))
7848 (put 'gnus-button-alist 'risky-local-variable t)
7850 (defcustom gnus-header-button-alist
7852 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7854 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7856 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7857 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7858 0 (>= gnus-button-browse-level 0) browse-url 0)
7859 ("^Subject:" gnus-button-url-regexp
7860 0 (>= gnus-button-browse-level 0) browse-url 0)
7861 ("^[^:]+:" gnus-button-url-regexp
7862 0 (>= gnus-button-browse-level 0) browse-url 0)
7863 ("^OpenPGP:.*url=" gnus-button-url-regexp
7864 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7866 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7868 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7869 "Alist of headers and regexps to match buttons in article heads.
7871 This alist is very similar to `gnus-button-alist', except that each
7872 alist has an additional HEADER element first in each entry:
7874 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7876 HEADER is a regexp to match a header. For a fuller explanation, see
7877 `gnus-button-alist'."
7878 :group 'gnus-article-buttons
7879 :group 'gnus-article-headers
7880 :type '(repeat (list (regexp :tag "Header")
7881 (choice regexp variable)
7882 (integer :tag "Button")
7883 (sexp :tag "Form")
7884 (function :tag "Callback")
7885 (repeat :tag "Par"
7886 :inline t
7887 (integer :tag "Regexp group")))))
7888 (put 'gnus-header-button-alist 'risky-local-variable t)
7890 ;;; Commands:
7892 (defun gnus-article-push-button (event)
7893 "Check text under the mouse pointer for a callback function.
7894 If the text under the mouse pointer has a `gnus-callback' property,
7895 call it with the value of the `gnus-data' text property."
7896 (interactive "e")
7897 (set-buffer (window-buffer (posn-window (event-start event))))
7898 (let* ((pos (posn-point (event-start event)))
7899 (data (get-text-property pos 'gnus-data))
7900 (fun (get-text-property pos 'gnus-callback)))
7901 (goto-char pos)
7902 (when fun
7903 (funcall fun data))))
7905 (defun gnus-article-press-button ()
7906 "Check text at point for a callback function.
7907 If the text at point has a `gnus-callback' property,
7908 call it with the value of the `gnus-data' text property."
7909 (interactive)
7910 (let ((data (get-text-property (point) 'gnus-data))
7911 (fun (get-text-property (point) 'gnus-callback)))
7912 (when fun
7913 (funcall fun data))))
7915 (defun gnus-article-highlight (&optional force)
7916 "Highlight current article.
7917 This function calls `gnus-article-highlight-headers',
7918 `gnus-article-highlight-citation',
7919 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7920 do the highlighting. See the documentation for those functions."
7921 (interactive (list 'force))
7922 (gnus-article-highlight-headers)
7923 (gnus-article-highlight-citation force)
7924 (gnus-article-highlight-signature)
7925 (gnus-article-add-buttons)
7926 (gnus-article-add-buttons-to-head))
7928 (defun gnus-article-highlight-some (&optional _force)
7929 "Highlight current article.
7930 This function calls `gnus-article-highlight-headers',
7931 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7932 do the highlighting. See the documentation for those functions."
7933 (interactive (list 'force))
7934 (gnus-article-highlight-headers)
7935 (gnus-article-highlight-signature)
7936 (gnus-article-add-buttons))
7938 (defun gnus-article-highlight-headers ()
7939 "Highlight article headers as specified by `gnus-header-face-alist'."
7940 (interactive)
7941 (gnus-with-article-headers
7942 (let (regexp header-face field-face from hpoints fpoints)
7943 (dolist (entry gnus-header-face-alist)
7944 (goto-char (point-min))
7946 (if (string-equal "" (nth 0 entry))
7948 (nth 0 entry))
7950 header-face (nth 1 entry)
7951 field-face (nth 2 entry))
7952 (while (and (re-search-forward regexp nil t)
7953 (not (eobp)))
7954 (beginning-of-line)
7955 (setq from (point))
7956 (unless (search-forward ":" nil t)
7957 (forward-char 1))
7958 (when (and header-face
7959 (not (memq (point) hpoints)))
7960 (push (point) hpoints)
7961 (put-text-property from (point) 'face header-face))
7962 (when (and field-face
7963 (not (memq (setq from (point)) fpoints)))
7964 (push from fpoints)
7966 (forward-char -2)
7967 (goto-char (point-max)))
7968 (put-text-property from (point) 'face field-face)))))))
7970 (defun gnus-article-highlight-signature ()
7971 "Highlight the signature in an article.
7972 It does this by highlighting everything after
7973 `gnus-signature-separator' using the face `gnus-signature'."
7974 (interactive)
7975 (gnus-with-article-buffer
7976 (let ((inhibit-point-motion-hooks t))
7977 (save-restriction
7978 (when (and gnus-signature-face
7979 (gnus-article-narrow-to-signature))
7980 (overlay-put (make-overlay (point-min) (point-max) nil t)
7981 'face gnus-signature-face)
7982 (widen)
7983 (gnus-article-search-signature)
7984 (let ((start (match-beginning 0))
7985 (end (set-marker (make-marker) (1+ (match-end 0)))))
7986 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
7987 end)))))))
7989 (defun gnus-button-in-region-p (b e prop)
7990 "Say whether PROP exists in the region."
7991 (text-property-not-all b e prop nil))
7993 (defun gnus-article-add-buttons ()
7994 "Find external references in the article and make buttons of them.
7996 specified by `gnus-button-alist'."
7997 (interactive)
7998 (gnus-with-article-buffer
7999 (let ((inhibit-point-motion-hooks t)
8000 (case-fold-search t)
8001 (alist gnus-button-alist)
8002 beg entry regexp)
8003 ;; We skip the headers.
8004 (article-goto-body)
8005 (setq beg (point))
8006 (while (setq entry (pop alist))
8007 (setq regexp (eval (car entry)))
8008 (goto-char beg)
8009 (while (re-search-forward regexp nil t)
8010 (let ((start (match-beginning (nth 1 entry)))
8011 (end (match-end (nth 1 entry)))
8012 (from (match-beginning 0)))
8013 (when (and (eval (nth 2 entry))
8014 (not (gnus-button-in-region-p
8015 start end 'gnus-callback)))
8016 ;; That optional form returned non-nil, so we add the
8017 ;; button.
8018 (setq from (set-marker (make-marker) from))
8019 (unless (and (eq (car entry) 'gnus-button-url-regexp)
8020 (gnus-article-extend-url-button from start end))
8021 (gnus-article-add-button start end
8022 'gnus-button-push (list from entry))
8023 (put-text-property
8024 start end
8025 'gnus-string (buffer-substring-no-properties
8026 start end))))))))))
8028 (defun gnus-article-extend-url-button (beg start end)
8029 "Extend url button if url is folded into two or more lines.
8030 Return non-nil if button is extended. BEG is a marker that points to
8031 the beginning position of a text containing url. START and END are
8032 the endpoints of a url button before it is extended. The concatenated
8033 url is put as the `gnus-button-url' overlay property on the button."
8034 (let ((opoint (point))
8035 (points (list start end))
8036 url delim regexp)
8037 (prog1
8038 (when (and (progn
8039 (goto-char end)
8041 (progn
8042 (goto-char start)
8043 (string-match
8045 (buffer-substring (point-at-bol) start)))
8046 (progn
8047 (setq url (list (buffer-substring start end))
8049 (beginning-of-line)
8050 (setq regexp (concat
8051 (when (and (looking-at
8052 message-cite-prefix-regexp)
8053 (< (match-end 0) start))
8054 (regexp-quote (match-string 0)))
8055 "\
8058 (while (progn
8059 (forward-line 1)
8060 (and (looking-at regexp)
8061 (prog1
8062 (match-beginning 1)
8063 (push (or (match-string 2)
8064 (match-string 1))
8065 url)
8066 (push (setq end (or (match-end 2)
8067 (match-end 1)))
8068 points)
8069 (push (or (match-beginning 2)
8070 (match-beginning 1))
8071 points)))))
8072 (match-beginning 2)))
8073 (let (gnus-article-mouse-face widget-mouse-face)
8074 (while points
8075 (gnus-article-add-button (pop points) (pop points)
8076 'gnus-button-push
8077 (list beg (assq 'gnus-button-url-regexp
8078 gnus-button-alist)))))
8079 (let ((overlay (make-overlay start end)))
8080 (overlay-put overlay 'evaporate t)
8081 (overlay-put overlay 'gnus-button-url
8082 (list (mapconcat 'identity (nreverse url) "")))
8083 (when gnus-article-mouse-face
8084 (overlay-put overlay 'mouse-face gnus-article-mouse-face)))
8085 t)
8086 (goto-char opoint))))
8088 ;; Add buttons to the head of an article.
8089 (defun gnus-article-add-buttons-to-head ()
8090 "Add buttons to the head of the article."
8091 (interactive)
8092 (gnus-with-article-headers
8093 (let (beg end)
8094 (dolist (entry gnus-header-button-alist)
8095 ;; Each alist entry.
8096 (goto-char (point-min))
8097 (while (re-search-forward (car entry) nil t)
8098 ;; Each header matching the entry.
8099 (setq beg (match-beginning 0))
8101 (match-beginning 0))
8102 (point-max)))
8103 (goto-char beg)
8104 (while (re-search-forward (eval (nth 1 entry)) end t)
8105 ;; Each match within a header.
8106 (let* ((entry (cdr entry))
8107 (start (match-beginning (nth 1 entry)))
8108 (end (match-end (nth 1 entry)))
8109 (form (nth 2 entry)))
8110 (goto-char (match-end 0))
8111 (when (eval form)
8112 (gnus-article-add-button
8113 start end (nth 3 entry)
8114 (buffer-substring (match-beginning (nth 4 entry))
8115 (match-end (nth 4 entry)))))))
8116 (goto-char end))))))
8118 ;;; External functions:
8120 (defun gnus-article-add-button (from to fun &optional data text)
8121 "Create a button between FROM and TO with callback FUN and data DATA."
8122 (when gnus-article-button-face
8123 (overlay-put (make-overlay from to nil t)
8124 'face gnus-article-button-face))
8125 (add-text-properties
8126 from to
8127 (nconc (and gnus-article-mouse-face
8128 (list 'mouse-face gnus-article-mouse-face))
8129 (list 'gnus-callback fun)
8130 (and data (list 'gnus-data data))))
8131 (widget-convert-button 'link from to :action 'gnus-widget-press-button
8132 :help-echo (or text "Follow the link")
8133 :keymap gnus-url-button-map))
8135 (defun gnus-article-copy-string ()
8136 "Copy the string in the button to the kill ring."
8137 (interactive)
8138 (gnus-article-check-buffer)
8139 (let ((data (get-text-property (point) 'gnus-string)))
8140 (when data
8141 (with-temp-buffer
8142 (insert data)
8143 (copy-region-as-kill (point-min) (point-max))
8144 (message "Copied %s" data)))))
8146 ;;; Internal functions:
8148 (defun gnus-article-set-globals ()
8149 (with-current-buffer gnus-summary-buffer
8150 (gnus-set-global-variables)))
8152 (defun gnus-signature-toggle (end)
8153 (gnus-with-article-buffer
8154 (let ((inhibit-point-motion-hooks t))
8155 (if (text-property-any end (point-max) 'article-type 'signature)
8156 (progn
8157 (gnus-delete-wash-type 'signature)
8158 (gnus-remove-text-properties-when
8159 'article-type 'signature end (point-max)
8160 (cons 'article-type (cons 'signature
8161 gnus-hidden-properties))))
8162 (gnus-add-wash-type 'signature)
8163 (gnus-add-text-properties-when
8164 'article-type nil end (point-max)
8165 (cons 'article-type (cons 'signature
8166 gnus-hidden-properties)))))
8167 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
8168 (gnus-set-mode-line 'article))))
8170 (defun gnus-button-push (marker-and-entry)
8171 ;; Push button starting at MARKER.
8172 (save-excursion
8173 (let* ((marker (car marker-and-entry))
8174 (entry (cadr marker-and-entry))
8175 (regexp (car entry))
8176 (inhibit-point-motion-hooks t))
8177 (goto-char marker)
8178 ;; This is obviously true, or something bad is happening :)
8179 ;; But we need it to have the match-data
8180 (when (looking-at (or (if (symbolp regexp)
8181 (symbol-value regexp)
8182 regexp)))
8183 (let ((fun (nth 3 entry))
8184 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
8185 (get-char-property marker 'gnus-button-url))
8186 (mapcar (lambda (group)
8187 (let ((string (match-string group)))
8188 (set-text-properties
8189 0 (length string) nil string)
8190 string))
8191 (nthcdr 4 entry)))))
8193 (cond
8194 ((fboundp fun)
8195 (apply fun args))
8196 ((and (boundp fun)
8197 (fboundp (symbol-value fun)))
8198 (apply (symbol-value fun) args))
8199 (t
8200 (gnus-message 1 "You must define `%S' to use this button"
8201 (cons fun args)))))))))
8203 (defun gnus-parse-news-url (url)
8204 (let (scheme server port group message-id articles)
8205 (with-temp-buffer
8206 (insert url)
8207 (goto-char (point-min))
8209 (setq scheme (match-string 1))
8210 (goto-char (match-end 0)))
8212 (setq server (match-string 1))
8213 (setq port (if (stringp (match-string 3))
8214 (string-to-number (match-string 3))
8215 (match-string 3)))
8216 (goto-char (match-end 0)))
8218 (cond
8220 (setq message-id (match-string 1)))
8222 (setq group (match-string 1)
8223 articles (split-string (match-string 2) "-")))
8225 (setq group (match-string 1)))
8226 (t
8227 (error "Unknown news URL syntax"))))
8228 (list scheme server port group message-id articles)))
8230 (defvar nntp-port-number)
8232 (defun gnus-button-handle-news (url)
8233 "Fetch a news URL."
8234 (cl-destructuring-bind (_scheme server port group message-id _articles)
8235 (gnus-parse-news-url url)
8236 (cond
8237 (message-id
8238 (with-current-buffer gnus-summary-buffer
8239 (if server
8240 (let ((gnus-refer-article-method
8241 (nconc (list (list 'nntp server))
8242 gnus-refer-article-method))
8243 (nntp-port-number (or port "nntp")))
8244 (gnus-message 7 "Fetching %s with %s"
8245 message-id gnus-refer-article-method)
8246 (gnus-summary-refer-article message-id))
8247 (gnus-summary-refer-article message-id))))
8248 (group
8249 (gnus-button-fetch-group url)))))
8251 (defun gnus-button-patch (library line)
8252 "Visit an Emacs Lisp library LIBRARY on line LINE."
8253 (interactive)
8254 (let ((file (locate-library (file-name-nondirectory library))))
8255 (unless file
8256 (error "Couldn't find library %s" library))
8257 (find-file file)
8258 (goto-char (point-min))
8259 (forward-line (1- (string-to-number line)))))
8261 (defun gnus-button-handle-man (url)
8262 "Fetch a man page."
8263 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8264 (when (eq gnus-button-man-handler 'woman)
8266 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8267 (funcall gnus-button-man-handler url))
8269 (defun gnus-button-handle-info-url (url)
8270 "Fetch an info URL."
8271 (setq url (subst-char-in-string ?+ ?\ url))
8272 (cond
8274 (gnus-info-find-node
8275 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
8276 "Gnus")
8277 ")" (gnus-url-unhex-string (match-string 2 url)))))
8279 (setq url
8280 (replace-regexp-in-string
8282 (gnus-info-find-node url))
8283 (t (error "Can't parse %s" url))))
8285 (defun gnus-button-handle-info-url-gnome (url)
8286 "Fetch GNOME style info URL."
8287 (setq url (subst-char-in-string ?_ ?\ url))
8289 (gnus-info-find-node
8290 (concat "("
8291 (gnus-url-unhex-string
8292 (match-string 1 url))
8293 ")"
8294 (or (gnus-url-unhex-string
8295 (match-string 2 url))
8296 "Top")))
8297 (error "Can't parse %s" url)))
8299 (defun gnus-button-handle-info-url-kde (url)
8300 "Fetch KDE style info URL."
8301 (gnus-info-find-node (gnus-url-unhex-string url)))
8303 ;; (info) will autoload info.el
8304 (declare-function Info-menu "info" (menu-item &optional fork))
8305 (declare-function Info-index-next "info" (num))
8307 (defun gnus-button-handle-info-keystrokes (url)
8308 "Call `info' when pushing the corresponding URL button."
8309 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
8310 (let (node indx comma)
8311 (if (string-match
8316 url)
8317 (setq node (match-string 2 url)
8318 indx (match-string 3 url))
8319 (error "Can't parse %s" url))
8320 (info)
8321 (Info-directory)
8322 (Info-menu node)
8323 (when (> (length indx) 0)
8326 indx)
8327 (setq comma (match-string 2 indx))
8328 (setq indx (match-string 1 indx))
8329 (Info-index indx)
8330 (when comma
8331 (dotimes (i (with-temp-buffer
8332 (insert comma)
8333 ;; Note: the XEmacs version of `how-many' takes
8334 ;; no optional argument.
8335 (goto-char (point-min))
8336 (how-many ",")))
8337 (Info-index-next 1)))
8338 nil)))
8340 (autoload 'pgg-snarf-keys-region "pgg")
8341 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
8342 (declare-function pgg-display-output-buffer "pgg" (start end status))
8344 (defun gnus-button-openpgp (url)
8345 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
8346 (with-temp-buffer
8347 (mm-url-insert-file-contents-external url)
8348 (pgg-snarf-keys-region (point-min) (point-max))
8349 (pgg-display-output-buffer nil nil nil)))
8351 (defun gnus-button-message-id (message-id)
8352 "Fetch MESSAGE-ID."
8353 (with-current-buffer gnus-summary-buffer
8354 (gnus-summary-refer-article message-id)))
8356 (defun gnus-button-fetch-group (address &rest _ignore)
8357 "Fetch GROUP specified by ADDRESS."
8359 address)
8360 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
8361 ;; for nntp:// and news://
8362 (setq address (match-string 3 address)))
8363 (if (not (string-match "[:/]" address))
8364 ;; This is just a simple group url.
8365 (gnus-group-read-ephemeral-group address gnus-select-method)
8366 (if (not
8367 (string-match
8369 address))
8370 (error "Can't parse %s" address)
8371 (gnus-group-read-ephemeral-group
8372 (match-string 4 address)
8373 `(nntp ,(match-string 1 address)
8374 (nntp-address ,(match-string 1 address))
8375 (nntp-port-number ,(if (match-end 3)
8376 (match-string 3 address)
8377 "nntp")))
8378 nil nil nil
8379 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
8381 (defun gnus-url-parse-query-string (query &optional downcase)
8382 (let (retval pairs cur key val)
8383 (setq pairs (split-string query "&"))
8384 (while pairs
8385 (setq cur (car pairs)
8386 pairs (cdr pairs))
8387 (if (not (string-match "=" cur))
8388 nil ; Grace
8389 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
8390 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
8391 (if downcase
8392 (setq key (downcase key)))
8393 (setq cur (assoc key retval))
8394 (if cur
8395 (setcdr cur (cons val (cdr cur)))
8396 (setq retval (cons (list key val) retval)))))
8397 retval))
8399 (defun gnus-url-mailto (url)
8400 ;; Send mail to someone
8403 (setq url (substring url (match-beginning 1) nil)))
8404 (let* ((args (gnus-url-parse-query-string
8406 (substring url 1)
8408 (concat "to=" (match-string 1 url) "&"
8409 (match-string 2 url))
8410 (concat "to=" url)))))
8411 (subject (cdr-safe (assoc "subject" args)))
8412 func)
8413 (gnus-msg-mail)
8414 (while args
8415 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8416 (if (fboundp func)
8417 (funcall func)
8418 (message-position-on-field (caar args)))
8419 (insert (replace-regexp-in-string
8421 (mapconcat 'identity (reverse (cdar args)) ", ") nil t))
8422 (setq args (cdr args)))
8423 (if subject
8424 (message-goto-body)
8425 (message-goto-subject))))
8427 (defun gnus-button-embedded-url (address)
8428 "Activate ADDRESS with `browse-url'."
8429 (browse-url (gnus-strip-whitespace address)))
8431 ;;; Next/prev buttons in the article buffer.
8436 (defvar gnus-prev-page-map
8437 (let ((map (make-sparse-keymap)))
8438 (define-key map [mouse-2] 'gnus-button-prev-page)
8440 map))
8442 (defvar gnus-next-page-map
8443 (let ((map (make-sparse-keymap)))
8444 (define-key map [mouse-2] 'gnus-button-next-page)
8446 map))
8448 (defun gnus-insert-prev-page-button ()
8449 (let ((b (point)) e
8450 (inhibit-read-only t))
8451 (gnus-eval-format
8452 gnus-prev-page-line-format nil
8453 `(keymap ,gnus-prev-page-map
8454 gnus-prev t
8455 gnus-callback gnus-article-button-prev-page
8456 article-type annotation))
8457 (setq e (if (bolp)
8458 ;; Exclude a newline.
8459 (1- (point))
8460 (point)))
8461 (when gnus-article-button-face
8462 (overlay-put (make-overlay b e nil t)
8463 'face gnus-article-button-face))
8464 (widget-convert-button
8465 'link b e
8466 :action 'gnus-button-prev-page
8467 :button-keymap gnus-prev-page-map)))
8469 (defun gnus-button-next-page (&optional _args _more-args)
8470 "Go to the next page."
8471 (interactive)
8472 (let ((win (selected-window)))
8473 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8474 (gnus-article-next-page)
8475 (select-window win)))
8477 (defun gnus-button-prev-page (&optional _args _more-args)
8478 "Go to the prev page."
8479 (interactive)
8480 (let ((win (selected-window)))
8481 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8482 (gnus-article-prev-page)
8483 (select-window win)))
8485 (defun gnus-insert-next-page-button ()
8486 (let ((b (point)) e
8487 (inhibit-read-only t))
8488 (gnus-eval-format gnus-next-page-line-format nil
8489 `(keymap ,gnus-next-page-map
8490 gnus-next t
8491 gnus-callback gnus-article-button-next-page
8492 article-type annotation))
8493 (setq e (if (bolp)
8494 ;; Exclude a newline.
8495 (1- (point))
8496 (point)))
8497 (when gnus-article-button-face
8498 (overlay-put (make-overlay b e nil t)
8499 'face gnus-article-button-face))
8500 (widget-convert-button
8501 'link b e
8502 :action 'gnus-button-next-page
8503 :button-keymap gnus-next-page-map)))
8505 (defun gnus-article-button-next-page (_arg)
8506 "Go to the next page."
8507 (interactive "P")
8508 (let ((win (selected-window)))
8509 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8510 (gnus-article-next-page)
8511 (select-window win)))
8513 (defun gnus-article-button-prev-page (_arg)
8514 "Go to the prev page."
8515 (interactive "P")
8516 (let ((win (selected-window)))
8517 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8518 (gnus-article-prev-page)
8519 (select-window win)))
8521 (defvar gnus-decode-header-methods
8522 '(mail-decode-encoded-word-region)
8523 "List of methods used to decode headers.
8525 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8526 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8527 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8528 whose names match REGEXP.
8530 For example:
8532 mail-decode-encoded-word-region
8534 ")
8536 (defvar gnus-decode-header-methods-cache nil)
8538 (defun gnus-multi-decode-header (start end)
8539 "Apply the functions from `gnus-encoded-word-methods' that match."
8540 (unless (and gnus-decode-header-methods-cache
8541 (eq gnus-newsgroup-name
8542 (car gnus-decode-header-methods-cache)))
8543 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8544 (dolist (x gnus-decode-header-methods)
8545 (if (symbolp x)
8546 (nconc gnus-decode-header-methods-cache (list x))
8547 (if (and gnus-newsgroup-name
8548 (string-match (car x) gnus-newsgroup-name))
8549 (nconc gnus-decode-header-methods-cache
8550 (list (cdr x)))))))
8551 (let ((xlist gnus-decode-header-methods-cache))
8552 (pop xlist)
8553 (save-restriction
8554 (narrow-to-region start end)
8555 (while xlist
8556 (funcall (pop xlist) (point-min) (point-max))))))
8558 ;;;
8559 ;;; Treatment top-level handling.
8560 ;;;
8562 (defvar gnus-inhibit-article-treatments nil)
8564 ;; Dynamic variables.
8565 (defvar part-number) ;FIXME: Lacks a "gnus-" prefix.
8566 (defvar total-parts) ;FIXME: Lacks a "gnus-" prefix.
8567 (defvar gnus-treat-type)
8568 (defvar gnus-treat-condition)
8569 (defvar gnus-treat-length)
8571 (defun gnus-treat-article (condition
8572 &optional part-num total type)
8573 (let ((gnus-treat-condition condition)
8574 (part-number part-num)
8575 (total-parts total)
8576 (gnus-treat-type type)
8577 (gnus-treat-length (- (point-max) (point-min)))
8578 (alist gnus-treatment-function-alist)
8579 (article-goto-body-goes-to-point-min-p t)
8580 (treated-type
8581 (or (not type)
8582 (catch 'found
8583 (let ((list gnus-article-treat-types))
8584 (while list
8585 (when (string-match (pop list) type)
8586 (throw 'found t)))))))
8587 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8588 val)
8589 (gnus-run-hooks 'gnus-part-display-hook)
8590 (dolist (elem alist)
8591 (setq val
8592 (save-excursion
8593 (when (gnus-buffer-live-p gnus-summary-buffer)
8594 (set-buffer gnus-summary-buffer))
8595 (symbol-value (car elem))))
8596 (when (and (or (consp val)
8597 treated-type)
8598 (or (not gnus-inhibit-article-treatments)
8599 (eq gnus-treat-condition 'head))
8600 (gnus-treat-predicate val)
8601 (or (not (get (car elem) 'highlight))
8602 highlightp))
8603 (save-restriction
8604 (funcall (cadr elem)))))))
8606 (defun gnus-treat-predicate (val)
8607 (cond
8608 ((null val)
8609 nil)
8610 (gnus-treat-condition
8611 (eq gnus-treat-condition val))
8612 ((and (listp val)
8613 (stringp (car val)))
8614 (apply 'gnus-or (mapcar `(lambda (s)
8615 (string-match s ,(or gnus-newsgroup-name "")))
8616 val)))
8617 ((listp val)
8618 (let ((pred (pop val)))
8619 (cond
8620 ((eq pred 'or)
8621 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8622 ((eq pred 'and)
8623 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8624 ((eq pred 'not)
8625 (not (gnus-treat-predicate (car val))))
8626 ((eq pred 'typep)
8627 (equal (car val) gnus-treat-type))
8628 ((functionp pred)
8629 (funcall pred))
8630 (t
8631 (error "%S is not a valid predicate" pred)))))
8632 ((eq val t)
8633 t)
8634 ((eq val 'head)
8635 nil)
8636 ((eq val 'first)
8637 (eq part-number 1))
8638 ((eq val 'last)
8639 (eq part-number total-parts))
8640 ((numberp val)
8641 (< gnus-treat-length val))
8642 (t
8643 (error "%S is not a valid value" val))))
8645 (defun gnus-article-encrypt-body (protocol &optional n)
8646 "Encrypt the article body."
8647 (interactive
8648 (list
8649 (or gnus-article-encrypt-protocol
8650 (gnus-completing-read "Encrypt protocol"
8651 (mapcar 'car gnus-article-encrypt-protocol-alist)
8652 t))
8653 current-prefix-arg))
8654 ;; User might hit `K E' instead of `K e', so prompt once.
8655 (when (and gnus-article-encrypt-protocol
8656 gnus-novice-user)
8657 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8658 (error "Encrypt aborted")))
8659 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8660 (unless func
8661 (error "Can't find the encrypt protocol %s" protocol))
8662 (if (member gnus-newsgroup-name '("nndraft:delayed"
8663 "nndraft:drafts"
8664 "nndraft:queue"))
8665 (error "Can't encrypt the article in group %s"
8666 gnus-newsgroup-name))
8667 (gnus-summary-iterate n
8668 (with-current-buffer gnus-summary-buffer
8669 (let ((mail-parse-charset gnus-newsgroup-charset)
8670 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8671 (summary-buffer gnus-summary-buffer)
8672 references point)
8673 (gnus-set-global-variables)
8674 (when (gnus-group-read-only-p)
8675 (error "The current newsgroup does not support article encrypt"))
8676 (gnus-summary-show-article t)
8677 (setq references
8678 (or (mail-header-references gnus-current-headers) ""))
8679 (set-buffer gnus-article-buffer)
8680 (let* ((inhibit-read-only t)
8681 (headers
8682 (mapcar (lambda (field)
8683 (and (save-restriction
8684 (message-narrow-to-head)
8685 (goto-char (point-min))
8686 (search-forward field nil t))
8687 (prog2
8688 (message-narrow-to-field)
8689 (buffer-string)
8690 (delete-region (point-min) (point-max))
8691 (widen))))
8692 '("Content-Type:" "Content-Transfer-Encoding:"
8693 "Content-Disposition:"))))
8694 (message-narrow-to-head)
8695 (message-remove-header "MIME-Version")
8696 (goto-char (point-max))
8697 (setq point (point))
8698 (insert (apply 'concat headers))
8699 (widen)
8700 (narrow-to-region point (point-max))
8701 (let ((message-options message-options))
8702 (message-options-set 'message-sender user-mail-address)
8703 (message-options-set 'message-recipients user-mail-address)
8704 (message-options-set 'message-sign-encrypt 'not)
8705 (funcall func))
8706 (goto-char (point-min))
8708 (widen)
8709 (gnus-summary-edit-article-done
8710 references nil summary-buffer t))
8711 (when gnus-keep-backlog
8712 (gnus-backlog-remove-article
8713 (car gnus-article-current) (cdr gnus-article-current)))
8714 (gnus-flush-original-article-buffer)
8715 (when gnus-use-cache
8716 (gnus-cache-update-article
8717 (car gnus-article-current) (cdr gnus-article-current))))))))
8720 "The following specs can be used:
8721 %t The security MIME type
8722 %i Additional info
8723 %d Details
8724 %D Details if button is pressed")
8727 "The following specs can be used:
8728 %t The security MIME type
8729 %i Additional info
8730 %d Details
8731 %D Details if button is pressed")
8733 (defvar gnus-mime-security-button-line-format-alist
8734 '((?t gnus-tmp-type ?s)
8735 (?i gnus-tmp-info ?s)
8736 (?d gnus-tmp-details ?s)
8737 (?D gnus-tmp-pressed-details ?s)))
8739 (defvar gnus-mime-security-button-commands
8741 (undefined "v")
8742 (undefined "t")
8743 (undefined "C")
8744 (gnus-mime-security-save-part "o" "Save...")
8745 (undefined "\C-o")
8746 (undefined "r")
8747 (undefined "d")
8748 (undefined "c")
8749 (undefined "i")
8750 (undefined "E")
8751 (undefined "e")
8752 (undefined "p")
8753 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8754 (undefined ".")))
8756 (defvar gnus-mime-security-button-map
8757 (let ((map (make-sparse-keymap)))
8758 (define-key map [mouse-2] 'gnus-article-push-button)
8759 (define-key map [down-mouse-3] 'gnus-mime-security-button-menu)
8760 (dolist (c gnus-mime-security-button-commands)
8761 (define-key map (cadr c) (car c)))
8762 map))
8764 (easy-menu-define
8765 gnus-mime-security-button-menu gnus-mime-security-button-map
8766 "Security button menu."
8767 `("Security Part"
8768 ,@(delq nil
8769 (mapcar (lambda (c)
8770 (unless (eq (car c) 'undefined)
8771 (vector (caddr c) (car c) :active t)))
8772 gnus-mime-security-button-commands))))
8774 (defun gnus-mime-security-button-menu (event prefix)
8775 "Construct a context-sensitive menu of security commands."
8777 (save-window-excursion
8778 (let ((pos (event-start event)))
8779 (select-window (posn-window pos))
8780 (goto-char (posn-point pos))
8781 (gnus-article-check-buffer)
8782 (popup-menu gnus-mime-security-button-menu nil prefix))))
8784 (defvar gnus-mime-security-details-buffer nil)
8786 (defvar gnus-mime-security-button-pressed nil)
8788 (defvar gnus-mime-security-show-details-inline t
8789 "If non-nil, show details in the article buffer.")
8791 (defun gnus-mime-security-verify-or-decrypt (handle)
8792 (mm-remove-parts (cdr handle))
8793 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8794 point (inhibit-read-only t))
8795 (if region
8796 (goto-char (car region)))
8797 (setq point (point))
8798 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8799 (let* ((mm-verify-option 'known)
8800 (mm-decrypt-option 'known)
8801 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8802 (unless (eq nparts (cdr handle))
8803 (mm-destroy-parts (cdr handle))
8804 (setcdr handle nparts))))
8805 (gnus-mime-display-security handle)
8806 (when region
8807 (delete-region (point) (cdr region))
8808 (set-marker (car region) nil)
8809 (set-marker (cdr region) nil))
8810 (goto-char point)))
8812 (defun gnus-mime-security-show-details (handle)
8813 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8814 (if (not details)
8815 (gnus-message 5 "No details.")
8816 (if gnus-mime-security-show-details-inline
8817 (let ((gnus-mime-security-button-pressed
8818 (not (get-text-property (point) 'gnus-mime-details)))
8819 (gnus-mime-security-button-line-format
8820 (get-text-property (point) 'gnus-line-format))
8821 (inhibit-read-only t))
8822 (forward-char -1)
8823 (while (eq (get-text-property (point) 'gnus-line-format)
8824 gnus-mime-security-button-line-format)
8825 (forward-char -1))
8826 (forward-char)
8827 (save-restriction
8828 (narrow-to-region (point) (point))
8829 (gnus-insert-mime-security-button handle))
8830 (delete-region (point)
8831 (or (text-property-not-all
8832 (point) (point-max)
8833 'gnus-line-format
8834 gnus-mime-security-button-line-format)
8835 (point-max))))
8836 ;; Not inlined.
8837 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8838 (with-current-buffer gnus-mime-security-details-buffer
8839 (erase-buffer)
8840 t)
8841 (setq gnus-mime-security-details-buffer
8842 (gnus-get-buffer-create "*MIME Security Details*")))
8843 (with-current-buffer gnus-mime-security-details-buffer
8844 (insert details)
8845 (goto-char (point-min)))
8846 (pop-to-buffer gnus-mime-security-details-buffer)))))
8848 (defun gnus-mime-security-press-button (handle)
8849 (save-excursion
8850 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8851 (gnus-mime-security-show-details handle)
8852 (gnus-mime-security-verify-or-decrypt handle))))
8854 (defun gnus-insert-mime-security-button (handle &optional _displayed)
8855 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8856 (gnus-tmp-type
8857 (concat
8858 (or (nth 2 (assoc protocol mm-verify-function-alist))
8859 (nth 2 (assoc protocol mm-decrypt-function-alist))
8860 "Unknown")
8861 (if (equal (car handle) "multipart/signed")
8862 " Signed" " Encrypted")
8863 " Part"))
8864 (gnus-tmp-info
8865 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8866 "Undecided"))
8867 (gnus-tmp-details
8868 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8869 gnus-tmp-pressed-details
8870 b e)
8871 (setq gnus-tmp-details
8872 (if gnus-tmp-details
8874 ""))
8875 (setq gnus-tmp-pressed-details
8876 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8877 (unless (bolp)
8879 (setq b (point))
8880 (gnus-eval-format
8881 gnus-mime-security-button-line-format
8882 gnus-mime-security-button-line-format-alist
8883 `(keymap ,gnus-mime-security-button-map
8884 gnus-callback gnus-mime-security-press-button
8885 gnus-line-format ,gnus-mime-security-button-line-format
8886 gnus-mime-details ,gnus-mime-security-button-pressed
8887 article-type annotation
8888 gnus-data ,handle))
8889 (setq e (if (bolp)
8890 ;; Exclude a newline.
8891 (1- (point))
8892 (point)))
8893 (when gnus-article-button-face
8894 (overlay-put (make-overlay b e nil t)
8895 'face gnus-article-button-face))
8896 (widget-convert-button
8897 'link b e
8898 :mime-handle handle
8899 :action 'gnus-widget-press-button
8900 :button-keymap gnus-mime-security-button-map
8901 :help-echo
8902 (lambda (_widget)
8903 (format
8904 "%S: show detail; %S: more options"
8905 'mouse-2
8906 'down-mouse-3)))))
8908 (defun gnus-mime-display-security (handle)
8909 (save-restriction
8910 (narrow-to-region (point) (point))
8911 (unless (gnus-unbuttonized-mime-type-p (car handle))
8912 (gnus-insert-mime-security-button handle))
8913 (gnus-mime-display-part (cadr handle))
8914 (unless (bolp)
8916 (unless (gnus-unbuttonized-mime-type-p (car handle))
8917 (let ((gnus-mime-security-button-line-format
8918 gnus-mime-security-button-end-line-format))
8919 (gnus-insert-mime-security-button handle)))
8920 (mm-set-handle-multipart-parameter
8921 handle 'gnus-region (cons (point-min-marker) (point-max-marker)))
8922 (goto-char (point-max))))
8924 (defun gnus-mime-security-run-function (function)
8925 "Run FUNCTION with the security part under point."
8926 (gnus-article-check-buffer)
8927 (let ((data (get-text-property (point) 'gnus-data))
8928 buffer handle)
8929 (when (and (stringp (car-safe data))
8930 (setq buffer (mm-handle-multipart-original-buffer data))
8931 (setq handle (cadr data)))
8932 (if (bufferp (mm-handle-buffer handle))
8933 (progn
8934 (setq handle (cons buffer (copy-sequence (cdr handle))))
8935 (mm-handle-set-undisplayer handle nil))
8936 (setq handle (mm-make-handle
8937 buffer
8938 (mm-handle-multipart-ctl-parameter handle 'protocol)
8939 nil nil nil nil nil nil)))
8940 (funcall function handle))))
8942 (defun gnus-mime-security-save-part ()
8943 "Save the security part under point."
8944 (interactive)
8945 (gnus-mime-security-run-function 'mm-save-part))
8947 (defun gnus-mime-security-pipe-part ()
8948 "Pipe the security part under point to a process."
8949 (interactive)
8950 (gnus-mime-security-run-function 'mm-pipe-part))
8952 (provide 'gnus-art)
8954 (run-hooks 'gnus-art-load-hook)
8956 ;;; gnus-art.el ends here