| blob | 5ec1268aee7941cd3960a5d314c264593566de03 |
1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996-2015 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Keywords: news
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
23 ;;; Commentary:
25 ;;; Code:
56 "Article display."
61 "Treating article parts."
66 "Hiding article parts."
71 "Article highlighting."
77 "Article signatures."
82 "Article headers."
87 "Special commands on articles."
92 "Fontisizing articles."
97 "Saving articles."
102 "Worshiping the MIME wonder."
107 "Pushable buttons in the article buffer."
112 "Other article options."
161 "*All headers that start with this regexp will be hidden.
162 This variable can also be a list of regexps of headers to be ignored.
163 If `gnus-visible-headers' is non-nil, this variable will be ignored."
169 "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^[BGF]?Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Mail-Followup-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From:"
170 "*All headers that do not match this regexp will be hidden.
171 This variable can also be a list of regexp of headers to remain visible.
172 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
179 regexp)
181 regexp)
187 "*This variable is a list of regular expressions.
188 If it is non-nil, headers that match the regular expressions will
189 be placed first in the article buffer in the sequence specified by
190 this list."
195 "Headers that are only to be displayed if they have interesting data.
196 Possible values in this list are:
198 'empty Headers with no content.
199 'newsgroups Newsgroup identical to Gnus group.
200 'to-address To identical to To-address.
201 'to-list To identical to To-list.
202 'cc-list CC identical to To-list.
203 'followup-to Followup-to identical to Newsgroups.
204 'reply-to Reply-to identical to From.
205 'date Date less than four days old.
206 'long-to To and/or Cc longer than 1024 characters.
207 'many-to Multiple To and/or Cc."
221 "Skip over text that is not worth reading.
222 By default, if you set this t, then Gnus will display citations and
223 signatures, but will never scroll down to show you a page consisting
224 only of boring text. Boring text is controlled by
225 `gnus-article-boring-faces'."
231 "Regexp matching signature separator.
232 This can also be a list of regexps. In that case, it will be checked
233 from head to tail looking for a separator. Searches will be done from
234 the end of the buffer."
241 "Provide a limit to what is considered a signature.
242 If it is a number, no signature may not be longer (in characters) than
243 that number. If it is a floating point number, no signature may be
244 longer (in lines) than that number. If it is a function, the function
245 will be called without any parameters, and if it returns nil, there is
246 no signature in the buffer. If it is a string, it will be used as a
247 regexp. If it matches, the text in question is not a signature.
249 This can also be a list of the above values."
253 function
259 ;; `intangible' is evil, but I keep it here in case it's useful.
261 ;; Emacs's command loop moves point out of invisible text anyway, so
262 ;; `intangible' is clearly not needed there.
264 "Property list to use for hiding text."
268 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
269 ;; 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 */'\
279 'gnus-display-x-face-in-from
280 "{ echo \
281 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
283 "*String or function to be executed to display an X-Face header.
284 If it is a string, the command will be executed in a sub-shell
285 asynchronously. The compressed face will be piped to this command."
288 function)
294 "Regexp matching posters whose face shouldn't be shown automatically."
299 "Banner alist for stripping.
300 For example,
301 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
307 banner
308 :variable-document
309 "Alist of regexps (to match group names) and banner."
310 :variable-group gnus-article-washing
311 :parameter-type
313 :value nil
316 regexp
318 :parameter-document
319 "If non-nil, specify how to remove `banners' from articles.
321 Symbol `signature' means to remove signatures delimited by
322 `gnus-signature-separator'. Any other symbol is used to look up a
323 regular expression to match the banner in `gnus-article-banner-alist'.
324 A string is used as a regular expression to match the banner
328 "Alist of mail addresses and banners.
329 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
330 to match a mail address in the From: header, BANNER is one of a symbol
331 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
332 If ADDRESS matches author's mail address, it will remove things like
333 advertisements. For example:
336 "
343 regexp
358 2
361 value)))
369 pattern)
374 value))))
392 types))
394 ;; several times seen it triggered by normal text. --Stef
395 ;; Miles suggests that this form is sometimes used but for italics,
396 ;; so maybe we should map it to `italic'.
397 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
398 ;; 2 3 gnus-emphasis-strikethru)
401 "*Alist that says how to fontify certain phrases.
402 Each item looks like this:
406 The first element is a regular expression to be matched. The second
407 is a number that says what regular expression grouping used to find
408 the entire emphasized word. The third is a number that says what
409 regexp grouping should be displayed and highlighted. The fourth
410 is the face used for highlighting."
411 :type
418 :value-create
426 widget
427 :value
430 regexp
433 face)
441 face)))
447 value)))
451 "A regexp to describe whitespace which should not be emphasized.
453 The former avoids underlining of leading and trailing whitespace,
454 and the latter avoids underlining any whitespace at all."
460 "Face used for displaying strong emphasized text (*word*)."
464 "Face used for displaying italic emphasized text (/word/)."
468 "Face used for displaying underlined emphasized text (_word_)."
472 "Face used for displaying underlined bold emphasized text (_*word*_)."
476 "Face used for displaying underlined italic emphasized text (_/word/_)."
480 "Face used for displaying bold italic emphasized text (/*word*/)."
485 "Face used for displaying underlined bold italic emphasized text.
486 Example: (_/*word*/_)."
492 "Face used for displaying strike-through text (-word-)."
497 "Face used for displaying highlighted words."
501 "Format for display of Date headers in article bodies.
502 See `format-time-string' for the possible values.
504 The variable can also be function, which should return a complete Date
505 header. The function is called with one argument, the time, which can
506 be fed to `format-time-string'."
512 "*If non-nil, don't remove any headers before saving.
513 This will be overridden by the `:headers' property that the symbol of
514 the saver function, which is specified by `gnus-default-article-saver',
515 might have."
520 "*This variable says how much prompting is to be done when saving articles.
521 If it is nil, no prompting will be done, and the articles will be
522 saved to the default files. If this variable is `always', each and
523 every article that is saved will be preceded by a prompt, even when
524 saving large batches of articles. If this variable is neither nil not
525 `always', there the user will be prompted once for a file name for
526 each invocation of the saving commands."
533 "Headers to keep if `gnus-save-all-headers' is nil.
534 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
535 If that variable is nil, however, all headers that match this regexp
536 will be kept while the rest will be deleted before saving. This and
537 `gnus-save-all-headers' will be overridden by the `:headers' property
538 that the symbol of the saver function, which is specified by
539 `gnus-default-article-saver', might have."
543 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
545 "A function to save articles in your favorite format.
546 The function will be called by way of the `gnus-summary-save-article'
547 command, and friends such as `gnus-summary-save-article-rmail'.
549 Gnus provides the following functions:
551 * gnus-summary-save-in-rmail (Rmail format)
552 * gnus-summary-save-in-mail (Unix mail format)
553 * gnus-summary-save-in-folder (MH folder)
554 * gnus-summary-save-in-file (article format)
555 * gnus-summary-save-body-in-file (article body)
556 * gnus-summary-save-in-vm (use VM's folder format)
557 * gnus-summary-write-to-file (article format -- overwrite)
558 * gnus-summary-write-body-to-file (article body -- overwrite)
559 * gnus-summary-save-in-pipe (article format)
561 The symbol of each function may have the following properties:
563 * :decode
564 The value non-nil means save decoded articles. This is meaningful
565 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
566 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
567 `gnus-summary-save-in-pipe'.
569 * :function
570 The value specifies an alternative function which appends, not
571 overwrites, articles to a file. This implies that when saving many
572 articles at a time, `gnus-prompt-before-saving' is bound to t and all
573 articles are saved in a single file. This is meaningful only with
574 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
576 * :headers
577 The value specifies the symbol of a variable of which the value
578 specifies headers to be saved. If it is omitted,
579 `gnus-save-all-headers' and `gnus-saved-headers' control what
580 headers should be saved."
598 "Coding system used to save decoded articles to a file.
600 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
601 which can safely encode any characters in text. This is used by the
602 commands including:
604 * gnus-summary-save-article-file
605 * gnus-summary-save-article-body-file
606 * gnus-summary-write-article-file
607 * gnus-summary-write-article-body-file
609 and the functions to which you may set `gnus-default-article-saver':
611 * gnus-summary-save-in-file
612 * gnus-summary-save-body-in-file
613 * gnus-summary-write-to-file
614 * gnus-summary-write-body-to-file
616 Those commands and functions save just text displayed in the article
617 buffer to a file if the value of this variable is non-nil. Note that
618 buttonized MIME parts will be lost in a saved file in that case.
619 Otherwise, raw articles will be saved."
634 "A function generating a file name to save articles in Rmail format.
635 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
640 "A function generating a file name to save articles in Unix mail format.
641 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
646 "A function generating a file name to save articles in MH folder.
647 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
652 "A function generating a file name to save articles in article format.
653 The function is called with NEWSGROUP, HEADERS, and optional
654 LAST-FILE."
661 "*Variable used to suggest where articles are to be saved.
662 For instance, if you would like to save articles related to Gnus in
664 you could set this variable to something like:
669 This variable is an alist where the key is the match and the
670 value is a list of possible files to save in if the match is
671 non-nil.
673 If the match is a string, it is used as a regexp match on the
674 article. If the match is a symbol, that symbol will be funcalled
675 from the buffer of the article to be saved with the newsgroup as the
676 parameter. If it is a list, it will be evalled in the same buffer.
678 If this form or function returns a string, this string will be used as a
679 possible file name; and if it returns a non-nil list, that list will be
680 used as possible file names."
687 "*Regexp describing what to use as article page delimiters.
689 beginning of a line."
694 "*The format specification for the article mode line.
695 See `gnus-summary-mode-line-format' for a closer description.
697 The following additional specs are available:
699 %w The article washing status.
700 %m The number of MIME parts in the article."
706 "*A hook for Gnus article mode."
711 ;; Extracted from gnus-xmas-define in order to preserve user settings
714 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
718 "*Hook run after the creation of the article mode menu."
723 "*A hook called after an article has been prepared in the article buffer."
728 "List of headers to be removed when copying an article.
729 Each element is a regular expression."
739 "Face used for highlighting a button in the article buffer."
743 "Face used for highlighting buttons in the article buffer.
745 An article button is a piece of text that you can activate by pressing
746 `RET' or `mouse-2' above it."
751 "Face used for mouse highlighting in the article buffer.
753 Article buttons will be displayed in this face when the cursor is
754 above them."
759 "Face used for highlighting a signature in the article buffer.
760 Obsolete; use the face `gnus-signature' for customizations instead."
768 "Face used for highlighting a signature in the article buffer."
771 ;; backward-compatibility alias
784 "Face used for displaying from headers."
787 ;; backward-compatibility alias
800 "Face used for displaying subject headers."
803 ;; backward-compatibility alias
816 "Face used for displaying newsgroups headers.
817 In the default setup this face is only used for crossposted
818 articles."
821 ;; backward-compatibility alias
834 "Face used for displaying header names."
837 ;; backward-compatibility alias
852 ;; backward-compatibility alias
861 "*Controls highlighting of article headers.
863 An alist of the form (HEADER NAME CONTENT).
865 HEADER is a regular expression which should match the name of a
866 header and NAME and CONTENT are either face names or nil.
868 The name of each header field will be displayed using the face
869 specified by the first element in the list where HEADER matches
870 the header name and NAME is non-nil. Similarly, the content will
871 be displayed by the first non-nil matching CONTENT face."
886 "Alist of image types and properties applied to Face and X-Face images.
887 Here are examples:
889 ;; Specify the altitude of Face images in the From header.
890 \(setq gnus-face-properties-alist
891 '((pbm . (:face gnus-x-face :ascent 80))
892 (png . (:ascent 80))))
894 ;; Show Face images as pressed buttons.
895 \(setq gnus-face-properties-alist
896 '((pbm . (:face gnus-x-face :relief -2))
897 (png . (:relief -2))))
899 See the manual for the valid properties for various image types.
900 Currently, `pbm' is used for X-Face images and `png' is used for Face
901 images in Emacs. Only the `:face' property is effective on the `xface'
902 image type in XEmacs if it is built with the libcompface library."
909 article-decode-group-name article-decode-idna-rhs)
910 "*Hook run to decode charsets in articles."
915 "Function to display MIME articles."
948 "List of MIME types that should be ignored by Gnus."
954 "List of MIME types that should not be given buttons when rendered inline.
955 See also `gnus-buttonized-mime-types' which may override this variable.
956 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
962 "List of MIME types that should be given buttons when rendered inline.
963 If set, this variable overrides `gnus-unbuttonized-mime-types'.
964 To see e.g. security buttons you could set this to
966 this list to display radio buttons that allow you to choose one of two
967 media types those mails include. See also `mm-discouraged-alternatives'.
968 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
974 "If non-nil, all MIME parts get buttons.
975 When nil (the default value), then some MIME parts do not get buttons,
976 as described by the variables `gnus-buttonized-mime-types' and
977 `gnus-unbuttonized-mime-types'."
983 "String used to delimit header and body.
984 This variable is used by `gnus-article-treat-body-boundary' which can
985 be controlled by `gnus-treat-body-boundary'."
989 string))
993 "Defines the location of the faces database.
994 For information on obtaining this database of pretty pictures, please
995 see http://www.cs.indiana.edu/picons/ftp/index.html"
1004 "Say whether picons are installed on your machine."
1009 installed))
1012 "Function called with a MIME handle as the argument.
1013 This is meant for people who want to do something automatic based
1014 on parts -- for instance, adding Vcard info to a database."
1017 function))
1020 "An alist of MIME types to functions to display them."
1026 "A list of Date header formats to display.
1027 Valid formats are `ut' (universal time), `local' (local time
1028 zone), `english' (readable English), `lapsed' (elapsed time),
1029 `combined-lapsed' (both the original date and the elapsed time),
1030 `original' (the original date header), `iso8601' (ISO8601
1031 format), and `user-defined' (a user-defined format defined by the
1032 `gnus-article-time-format' variable).
1034 You have as many date headers as you want in the article buffer.
1035 Some of these headers are updated automatically. See
1036 `gnus-article-update-date-headers' for details."
1050 "A number that says how often to update the date header (in seconds).
1051 If nil, don't update it at all."
1056 integer))
1059 "Function called with a MIME handle as the argument.
1060 This is meant for people who want to view first matched part.
1061 For `undisplayed-alternative' (default), the first undisplayed
1062 part or alternative part is used. For `undisplayed', the first
1063 undisplayed part is used. For a function, the first part which
1064 the function return t is used. For nil, the first part is
1065 used."
1088 "An alist of actions that run on the MIME attachment."
1094 "Advance to next MIME part when deleting or stripping parts.
1096 When 0, point will be placed on the same part as before. When
1097 positive (negative), move point forward (backwards) this many
1098 parts. When nil, redisplay article."
1104 integer))
1106 ;;;
1107 ;;; The treatment variables
1108 ;;;
1135 "Highlight the signature.
1136 Valid values are nil, t, `head', `first', `last', an integer or a
1137 predicate. See Info node `(gnus)Customizing Articles'."
1144 "Add buttons.
1145 Valid values are nil, t, `head', `first', `last', an integer or a
1146 predicate. See Info node `(gnus)Customizing Articles'."
1153 "Add buttons to the head.
1154 Valid values are nil, t, `head', `first', `last', an integer or a
1155 predicate. See Info node `(gnus)Customizing Articles'."
1162 "Display dates according to the `gnus-article-date-headers' variable.
1163 Valid values are nil, t, `head', `first', `last', an integer or a
1164 predicate. See Info node `(gnus)Customizing Articles'."
1171 "Emphasize text.
1172 Valid values are nil, t, `head', `first', `last', an integer or a
1173 predicate. See Info node `(gnus)Customizing Articles'."
1180 "Remove carriage returns.
1181 Valid values are nil, t, `head', `first', `last', an integer or a
1182 predicate. See Info node `(gnus)Customizing Articles'."
1189 "Remove newlines from within URLs.
1190 Valid values are nil, t, `head', `first', `last', an integer or a
1191 predicate. See Info node `(gnus)Customizing Articles'."
1198 "Remove leading whitespace in headers.
1199 Valid values are nil, t, `head', `first', `last', an integer or a
1200 predicate. See Info node `(gnus)Customizing Articles'."
1207 "Hide headers.
1208 Valid values are nil, t, `head', `first', `last', an integer or a
1209 predicate. See Info node `(gnus)Customizing Articles'."
1215 "Hide boring headers.
1216 Valid values are nil, t, `head', `first', `last', an integer or a
1217 predicate. See Info node `(gnus)Customizing Articles'."
1223 "Hide the signature.
1224 Valid values are nil, t, `head', `first', `last', an integer or a
1225 predicate. See Info node `(gnus)Customizing Articles'."
1231 "Fill the article.
1232 Valid values are nil, t, `head', `first', `last', an integer or a
1233 predicate. See Info node `(gnus)Customizing Articles'."
1239 "Hide cited text.
1240 Valid values are nil, t, `head', `first', `last', an integer or a
1241 predicate. See Info node `(gnus)Customizing Articles'.
1243 See `gnus-article-highlight-citation' for variables used to
1244 control what it hides."
1250 "Hide cited text according to certain conditions.
1251 Valid values are nil, t, `head', `first', `last', an integer or a
1252 predicate. See Info node `(gnus)Customizing Articles'.
1254 See `gnus-cite-hide-percentage' and `gnus-cite-hide-absolute' for
1255 how to control what it hides."
1261 "Strip list identifiers from `gnus-list-identifiers`.
1262 Valid values are nil, t, `head', `first', `last', an integer or a
1263 predicate. See Info node `(gnus)Customizing Articles'."
1270 list-identifier
1271 :variable-document
1272 "Alist of regexps and correspondent identifiers."
1273 :variable-group gnus-article-washing
1274 :parameter-type
1276 :value nil
1278 regexp
1280 :parameter-document
1281 "If non-nil, specify how to remove `identifiers' from articles' subject.
1283 Any symbol is used to look up a regular expression to match the
1284 banner in `gnus-list-identifiers'. A string is used as a regular
1291 "Strip PEM signatures.
1292 Valid values are nil, t, `head', `first', `last', an integer or a
1293 predicate. See Info node `(gnus)Customizing Articles'."
1299 "Strip banners from articles.
1300 The banner to be stripped is specified in the `banner' group parameter.
1301 Valid values are nil, t, `head', `first', `last', an integer or a
1302 predicate. See Info node `(gnus)Customizing Articles'."
1308 "Highlight the headers.
1309 Valid values are nil, t, `head', `first', `last', an integer or a
1310 predicate. See Info node `(gnus)Customizing Articles'."
1317 "Highlight cited text.
1318 Valid values are nil, t, `head', `first', `last', an integer or a
1319 predicate. See Info node `(gnus)Customizing Articles'."
1326 "Strip the X-No-Archive header line from the beginning of the body.
1327 Valid values are nil, t, `head', `first', `last', an integer or a
1328 predicate. See Info node `(gnus)Customizing Articles'."
1335 "Strip trailing blank lines.
1336 Valid values are nil, t, `head', `first', `last', an integer or a
1337 predicate. See Info node `(gnus)Customizing Articles'.
1339 When set to t, it also strips trailing blanks in all MIME parts.
1340 Consider to use `last' instead."
1346 "Strip leading blank lines.
1347 Valid values are nil, t, `head', `first', `last', an integer or a
1348 predicate. See Info node `(gnus)Customizing Articles'.
1350 When set to t, it also strips trailing blanks in all MIME parts."
1356 "Strip multiple blank lines.
1357 Valid values are nil, t, `head', `first', `last', an integer or a
1358 predicate. See Info node `(gnus)Customizing Articles'."
1364 "Unfold folded header lines.
1365 Valid values are nil, t, `head', `first', `last', an integer or a
1366 predicate. See Info node `(gnus)Customizing Articles'."
1373 "If non-nil, allow unfolding headers even if the header is long.
1374 If it is a regexp, only long headers matching this regexp are unfolded.
1375 If it is t, all long headers are unfolded.
1377 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1385 "Fold headers.
1386 Valid values are nil, t, `head', `first', `last', an integer or a
1387 predicate. See Info node `(gnus)Customizing Articles'."
1394 "Fold the Newsgroups and Followup-To headers.
1395 Valid values are nil, t, `head', `first', `last', an integer or a
1396 predicate. See Info node `(gnus)Customizing Articles'."
1403 "Treat overstrike highlighting.
1404 Valid values are nil, t, `head', `first', `last', an integer or a
1405 predicate. See Info node `(gnus)Customizing Articles'."
1412 "Treat ANSI SGR control sequences.
1413 Valid values are nil, t, `head', `first', `last', an integer or a
1414 predicate. See Info node `(gnus)Customizing Articles'."
1430 ;; shell-command-to-string may signal an error, e.g. if
1431 ;; shell-file-name is not found.
1434 "Display X-Face headers.
1435 Valid values are nil and `head'.
1436 See Info node `(gnus)Customizing Articles' and Info node
1437 `(gnus)X-Face' for details."
1442 :type gnus-article-treat-head-custom
1445 symbol
1447 value)
1450 ** gnus-treat-display-xface is an obsolete variable;\
1455 ** gnus-treat-display-xface is an obsolete variable;\
1459 value)))))
1466 "Display Face headers.
1467 Valid values are nil, t, `head', `first', `last', an integer or a
1468 predicate. See Info node `(gnus)Customizing Articles' and Info
1469 node `(gnus)Face' for details."
1478 "Display smileys.
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)Smileys' for details."
1493 "Display picons in the From header.
1494 Valid values are nil, t, `head', `first', `last', an integer or a
1495 predicate. See Info node `(gnus)Customizing Articles' and Info
1496 node `(gnus)Picons' for details."
1509 "Display picons in To and Cc headers.
1510 Valid values are nil, t, `head', `first', `last', an integer or a
1511 predicate. See Info node `(gnus)Customizing Articles' and Info
1512 node `(gnus)Picons' for details."
1525 "Display picons in the Newsgroups and Followup-To headers.
1526 Valid values are nil, t, `head', `first', `last', an integer or a
1527 predicate. See Info node `(gnus)Customizing Articles' and Info
1528 node `(gnus)Picons' for details."
1538 "Display gravatars in the From header.
1539 Valid values are nil, t, `head', `first', `last', an integer or a
1540 predicate. See Info node `(gnus)Customizing Articles' and Info
1541 node `(gnus)Gravatars' for details."
1551 "Display gravatars in To and Cc headers.
1552 Valid values are nil, t, `head', `first', `last', an integer or a
1553 predicate. See Info node `(gnus)Customizing Articles' and Info
1554 node `(gnus)Gravatars' for details."
1565 gnus-treat-mail-picon
1566 gnus-treat-from-picon
1567 gnus-treat-from-gravatar
1568 gnus-treat-mail-gravatar)
1569 ;; If there's much decoration, the user might prefer a boundary.
1570 'head
1571 nil)
1572 "Draw a boundary at the end of the headers.
1573 Valid values are nil and `head'.
1574 See Info node `(gnus)Customizing Articles' for details."
1581 "Capitalize sentence-starting words.
1582 Valid values are nil, t, `head', `first', `last', an integer or a
1583 predicate. See Info node `(gnus)Customizing Articles'."
1590 "Format as HTML.
1591 Valid values are nil, t, `head', `first', `last', an integer or a
1592 predicate. See Info node `(gnus)Customizing Articles'."
1599 "Fill long lines.
1600 Valid values are nil, t, `head', `first', `last', an integer or a
1601 predicate. See Info node `(gnus)Customizing Articles'."
1608 "Verify X-PGP-Sig.
1609 To automatically treat X-PGP-Sig, set it to head.
1610 Valid values are nil, t, `head', `first', `last', an integer or a
1611 predicate. See Info node `(gnus)Customizing Articles'."
1621 ;; Set to nil if more than one protocol added to
1622 ;; gnus-article-encrypt-protocol-alist.
1624 "The protocol used for encrypt articles.
1634 idna-program
1636 "Whether IDNA decoding of headers is used when viewing messages.
1637 This requires GNU Libidn, and by default only enabled if it is found."
1643 "If non-nil, allow scrolling the article buffer even when there no more text."
1649 "Non-nil means inhibit displaying of images inline in the article body."
1655 "Images that have URLs matching this regexp will be blocked.
1656 This can also be a function to be evaluated. If so, it will be
1657 called with the group name as the parameter, and should return a
1658 regexp."
1663 ;;; Internal variables
1702 gnus-article-remove-trailing-blank-lines)
1704 gnus-article-strip-leading-blank-lines)
1706 gnus-article-strip-multiple-blank-lines)
1728 ;; This causes the citation match run O(2^n).
1729 ;; (modify-syntax-entry ?- "w" table)
1732 ;; make M-. in article buffers work for `foo' strings
1735 table)
1736 "Syntax table used in article mode buffers.
1747 ;;; Macros for dealing with the article buffer.
1771 "Go to HEADER, which is a regular expression."
1775 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1783 "Remove hidden text properties from region between B and E."
1790 "Hide text of TYPE between B and E."
1796 "Unhide text of TYPE between B and E."
1805 "Delete text of TYPE in the current buffer."
1809 ;; Remove MIME buttons associated with multipart/alternative parts.
1817 t))
1828 "Delete all invisible text in the current buffer."
1837 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1845 i))
1848 "Hide unwanted headers and possibly sort them as well."
1850 ;; This function might be inhibited.
1857 ignored visible beg)
1859 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1860 ;; group parameters, so we should go to the summary buffer.
1867 gnus-ignored-headers)
1870 gnus-ignored-headers
1873 gnus-visible-headers)
1877 gnus-visible-headers
1881 ;; First we narrow to just the headers.
1883 ;; Hide any "From " lines at the beginning of (mail) articles.
1888 ;; Then treat the rest of the header lines.
1889 ;; Then we use the two regular expressions
1890 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1891 ;; select which header lines is to remain visible in the
1892 ;; article buffer.
1895 ;; Mark the rank of the header.
1907 ;; We delete the unwanted headers.
1914 "Toggle hiding of headers that aren't very interesting.
1915 If given a negative prefix, always show; if given a positive prefix,
1916 always hide."
1928 ;; Hide empty headers.
1940 ;; Hide boring Newsgroups header.
1946 gnus-newsgroup-name
1958 ;; only one address in To
1960 to-address)))
1971 ;; only one address in To
1973 to-list)))
1984 ;; only one address in CC
1986 to-list)))
2001 from reply-to
2015 ;; If date in `gnus-article-buffer' is localized
2016 ;; (`gnus-treat-date-user-defined'),
2017 ;; `days-between' might fail.
2075 "Make all header lines 40 characters long."
2078 column)
2085 gnus-article-normalized-header-length)
2089 ? )))
2098 ;; Do nothing.
2099 ))
2103 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2104 Note that this function guesses whether a character is a sm*rtq**t* or
2105 not, so it should only be used interactively.
2107 Sm*rtq**t*s are M****s***'s unilateral extension to the
2108 iso-8859-1 character map in an attempt to provide more quoting
2110 you're expecting some kind of apostrophe or quotation mark, then
2111 try this wash."
2118 "Translate many Unicode characters into their ASCII equivalents."
2131 replace props)
2141 props)
2145 "Translate all string in the body of the article according to MAP.
2165 "Translate overstrikes into bold text."
2173 ;; We do the boldification/underlining by hiding the
2174 ;; overstrikes and putting the proper text property
2175 ;; on the letters.
2191 "Translate ANSI SGR control sequences into overlays or extents."
2199 "Unfold folded message headers.
2200 Only the headers that fit into the current window width will be
2201 unfolded."
2213 header)))))
2227 "Fold message headers."
2250 "Remove all images from the article buffer."
2261 "Show any images that are in the HTML-rendered article buffer.
2262 This only works if the article in question is HTML."
2274 start end)))))))
2277 "Unfold folded message headers.
2278 Only the headers that fit into the current window width will be
2279 unfolded."
2291 "Value of `truncate-lines' in Gnus Article buffer.
2292 Valid values are nil, t, `head', `first', `last', an integer or a
2293 predicate. See Info node `(gnus)Customizing Articles'."
2296 ;; :link '(custom-manual "(gnus)Customizing Articles")
2300 "Toggle whether to fold or truncate long lines in article the buffer.
2301 If ARG is non-nil and not a number, toggle
2302 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2303 long lines if and only if arg is positive."
2319 ;; In versions of Emacs 22 (CVS) before 2006-05-26,
2320 ;; `toggle-truncate-lines' needs an argument.
2324 "Place a boundary line at the end of the headers."
2343 "Fill lines that are wider than the window width."
2363 "Capitalize the first word in each sentence."
2374 "Remove trailing CRs and then translate remaining CRs into LFs."
2386 "Remove all trailing blank lines from the article."
2405 "Display any Face headers in the header."
2409 ;; When displaying parts, this function can be called several times on
2410 ;; the same article, without any intended toggle semantic (as typing `W
2411 ;; D d' would have). So face deletion must occur only when we come from
2412 ;; an interactive command, that is when the *Article* buffer is
2413 ;; read-only.
2417 faces)
2426 ;; Check whether this face is censored.
2431 from))))
2453 "Look for an X-Face header and display it if present."
2457 ;; Delete the old process, if any.
2460 ;; See the comment in `article-display-face'.
2462 ;; We have already displayed X-Faces, so we remove them
2463 ;; instead.
2465 ;; Display X-Faces.
2467 x-faces)
2472 ;; If type `W f', use gnus-original-article-buffer,
2473 ;; otherwise use the current buffer because displaying
2474 ;; RFC822 parts calls this function too.
2480 ;; Check whether this face is censored.
2485 from))))
2489 ;; We display the face.
2491 ;; The command is a lisp function, so we call it.
2494 ;; The command is a string, so we interpret the command
2495 ;; as a, well, command, and fork it off.
2499 "article-x-face" nil shell-file-name
2500 shell-command-switch gnus-article-x-face-command)
2501 nil)
2502 ;; Sending multiple EOFs to xv doesn't work,
2503 ;; so we only do a single external face.
2511 gnus-article-x-face-command
2515 "Decode all MIME-encoded words in the article."
2522 gnus-newsgroup-ignored-charsets)))
2526 "Decode charset-encoded text in the article.
2527 If PROMPT (the prefix), prompt for a coding system to use."
2536 gnus-newsgroup-ignored-charsets))
2537 ct cte ctl charset format)
2560 ;; The text code could have been decoded.
2571 "Remove encoded-word encoding from headers."
2578 gnus-newsgroup-ignored-charsets))
2580 end start)
2599 "Decode group names in Newsgroups, Followup-To and Xref headers."
2603 regexp)
2605 gnus-group-name-charset-group-alist)
2617 ;; XXX how to use data in article buffer?
2621 gnus-newsgroup-name method))
2628 "Decode IDNA strings in RHS in various headers in current buffer.
2629 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2630 Mail-Reply-To: and Mail-Followup-To:."
2649 "Translate a quoted-printable-encoded article.
2650 If FORCE, decode the article whether it is marked as quoted-printable
2651 or not.
2652 If READ-CHARSET, ask for a coding system."
2678 "Translate a base64 article.
2679 If FORCE, decode the article whether it is marked as base64 not.
2680 If READ-CHARSET, ask for a coding system."
2713 "Translate a HZ-encoded article."
2721 "Remove the newlines that some other mailers insert into URLs."
2733 "Format an HTML article."
2746 "List of temporary files created by `gnus-article-browse-html-parts'.
2750 "What to do with temporary files from `gnus-article-browse-html-parts'.
2751 If nil, don't delete temporary files. If it is t, delete them on
2752 exit from the summary buffer. If it is the symbol `file', query
2753 on each file, if it is `ask' ask once when exiting from the
2754 summary buffer."
2762 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2765 "Delete temp-files created by `gnus-article-browse-html-parts'."
2773 "Delete the temporary HTML file? "
2775 files)))
2777 how)))
2783 "Delete temporary HTML file(s) in directory `%s'? "
2791 ;; Also remove file from the list when not deleted or if file doesn't
2792 ;; exist anymore.
2794 gnus-article-browse-html-temp-list)
2797 "Find CID content in HANDLES and save it in a file in DIRECTORY.
2798 Return file name relative to the parent of DIRECTORY."
2805 ;; Exclude broken handles that `gnus-summary-enter-digest-group'
2806 ;; may create.
2810 cid handle directory))
2817 mailcap-mime-extensions))))
2826 Recurse into multiparts. The optional HEADER that should be a decoded
2828 ;; Internal function used by `gnus-article-browse-html-article'.
2830 ;; Find and show the html-parts.
2832 ;; If HTML, show it:
2844 nil)))
2856 ;; resolve cid contents
2858 st base regexp cid-file)
2879 base))
2886 nil t)
2891 content nil)
2896 gnus-article-mime-handles)
2897 cid-dir))
2902 ;; Do we need to care for 8.3 filenames?
2904 ;; Add a meta html tag to specify charset and a header.
2915 nil t)
2931 ;; We have to examine charset one by one since
2932 ;; charset specified in parts might be different.
2936 charset)
2945 hcharset nil t)))
2948 coding hcharset)))
2954 nil t))
2960 title coding))
2961 body content)
2967 title charset))
2970 content body)
2971 charset))))
2977 title coding))
2978 body content))
2980 body content)))
3004 content))
3019 ;; FIXME: Warn if there's an <img> tag?
3022 ;; If multipart, recurse
3037 gnus-visible-headers)))
3047 showed))
3051 Inline images embedded in a message using the cid scheme, as they are
3052 generally considered to be safe, will be processed properly.
3053 The message header is added to the beginning of every html part unless
3054 the prefix argument ARG is given.
3056 Warning: Spammers use links to images (using the http scheme) in HTML
3057 articles to verify whether you have read the message. As
3058 `gnus-article-browse-html-article' passes the HTML content to the
3060 use it for mails from trusted senders.
3062 If you always want to display HTML parts in the browser, set
3063 `mm-text-html-renderer' to nil.
3065 This command creates temporary files to pass HTML contents including
3066 images if any to the browser, and deletes them when exiting the group
3067 \(if you want)."
3068 ;; Cf. `mm-w3m-safe-url-regexp'
3073 gnus-visible-headers))
3074 ;; As we insert a <hr>, there's no need for the body boundary.
3088 parts)
3091 ;; If singlepart, enforce a list.
3095 ;; Process the list
3103 "Remove list identifiers from the Subject header.
3104 The `gnus-list-identifiers' variable specifies what to do."
3116 nil t)
3124 "Toggle hiding of any PEM headers and signatures in the current article.
3125 If given a negative prefix, always show; if given a positive prefix,
3126 always hide."
3132 ;; Hide the horrendously ugly "header".
3135 nil t)
3139 end
3144 ;; Hide the trailer as well
3146 nil t)
3151 "Strip the banners specified by the `banner' group parameter and by
3152 `gnus-article-address-banner-alist'."
3161 ;; Note that the From header is decoded here, so it is
3162 ;; required that the *-extract-address-components function
3163 ;; supports non-ASCII text.
3171 from))))
3179 "Strip the banner specified by the argument."
3201 "Translate article using an online translation service."
3216 "Hide the signature in the current article.
3217 If given a negative prefix, always show; if given a positive prefix,
3218 always hide."
3230 "Strip offensive headers from bodies."
3239 "Remove all blank lines from the beginning of the article."
3250 "Narrow the buffer to the head of the message.
3251 Point is left at the beginning of the narrowed-to region."
3255 ;; Absolutely no headers displayed.
3258 ;; Normal headers.
3261 ;; Nothing but headers.
3267 "Place point at the start of the body."
3270 ;; This variable is only bound when dealing with separate
3271 ;; MIME body parts.
3273 t)
3275 t)
3278 nil)))
3281 "Replace consecutive blank lines with one empty line."
3286 ;; First make all blank lines empty.
3292 ;; Then replace multiple empty lines with a single empty line.
3300 "Remove all white space from the beginning of the lines in the article."
3310 "Remove all white space from the end of the lines in the article."
3320 "Strip leading, trailing and multiple blank lines."
3327 "Strip all blank lines."
3337 "Narrow to the signature; return t if a signature is found, else nil."
3341 ;; Check whether we have some limits to what we consider
3342 ;; to be a signature.
3345 limit limited)
3357 limits nil)))
3360 t)))))
3363 "Search the current buffer for the signature separator.
3364 Put point at the beginning of the signature separator."
3373 seps))
3374 t
3376 nil)))
3379 "Return the current prefix arg as a number, or 0 if no prefix."
3385 "Return nil if hiding is necessary.
3386 Arg can be nil or a number. nil and positive means hide, negative
3387 means show, 0 means toggle."
3394 nil)
3397 t)
3402 t)
3403 nil)))))))
3406 "Say whether the current buffer contains hidden text of type TYPE."
3414 'hidden
3415 nil)))
3418 "Show all hidden text of type TYPE.
3419 Originally it is hide instead of DUMMY."
3423 'article-type type
3426 gnus-hidden-properties)))
3439 "Move point to the start of the next header.
3440 If the current header is a continuation header, this can be several
3441 lines forward."
3452 gnus-article-date-headers)
3453 gnus-article-date-headers)
3454 t))
3457 "Convert DATE date to TYPE in the current article.
3458 The default type is `ut'. See `gnus-article-date-headers' for
3459 possible values."
3465 pos date bface eface)
3510 visible-date)
3524 type)))
3534 ;; Do highlighting.
3546 "Return a DATE line of TYPE."
3548 combined-lapsed))
3553 ;; Convert to the local timezone.
3556 ;; Convert to Universal Time.
3570 ;; Get the original date from the article.
3574 date)))
3575 ;; Let the user define the format.
3579 gnus-article-time-format)
3581 gnus-article-time-format)))
3585 ;; ISO 8601.
3589 "Date: "
3594 ;; Do a lapsed format.
3597 ;; A combined date/lapsed format.
3601 lapsed-string)
3603 time
3613 date-string)))
3614 ;; Display the date in proper English
3618 "Date: the "
3627 " of "
3629 " "
3631 " at "
3633 ":"
3639 ;; If the date is seriously mangled, the timezone functions are
3640 ;; liable to bug out, so we ignore all errors.
3648 num prev)
3658 ;; This is a bit convoluted, but basically we go
3659 ;; through the time units for years, weeks, etc,
3660 ;; and divide things to see whether that results
3661 ;; in positive answers.
3666 ;; The (remaining) seconds are too few to
3667 ;; be divided into this time unit.
3668 ""
3669 ;; It's big enough, so we output it.
3679 ;; If dates are odd, then it might appear like the
3680 ;; article was sent in the future.
3682 " ago"
3686 "Convert the current article date to the local timezone."
3691 "Convert the current article date to something that is proper English."
3696 "Convert the current article date to what it was originally.
3697 This is only useful if you have used some other date conversion
3698 function and want to see what the date was before converting."
3703 "Convert the current article date to time lapsed since it was sent."
3708 "Convert the current article date to time lapsed since it was sent."
3713 "Function to be run from a timer to update the lapsed time line."
3725 type next end)
3755 "Start a timer to update the Date headers in the article buffers.
3756 The numerical prefix says how frequently (in seconds) the function
3757 is to run."
3766 "Stop the Date timer."
3773 "Convert the current article date to the user-defined format.
3774 This format is defined by the `gnus-article-time-format' variable."
3779 "Convert the current article date to ISO8601."
3784 "Save the original date as a text property and evaluate FORMS."
3793 nil t))
3799 ,@forms
3804 ;; (defun article-show-all ()
3805 ;; "Show all hidden text in the article buffer."
3806 ;; (interactive)
3807 ;; (save-excursion
3808 ;; (let ((inhibit-read-only t))
3809 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3812 "Remove excessive whitespace from all headers."
3823 "Emphasize text according to `gnus-emphasis-alist'."
3830 gnus-article-emphasis-alist)
3832 gnus-emphasis-alist))
3835 gnus-hidden-properties))
3836 regexp elem beg invisible visible face)
3857 "Setup newsgroup emphasis alist."
3869 highlight)
3874 gnus-emphasis-alist)))))
3879 ;;; Saving functions.
3882 "Save the currently selected article."
3885 ;; Remove headers according to `gnus-saved-headers' or the value
3886 ;; of the `:headers' property that the saver function might have.
3889 gnus-saved-headers gnus-visible-headers))
3890 ;; Ignore group parameter. See `article-hide-headers'.
3897 ;; !!! Magic! The saving functions all save
3898 ;; `gnus-save-article-buffer' (or so they think), but we
3899 ;; bind that variable to our save-buffer.
3914 function group headers variable
3915 dir-var)
3918 result)
3923 default-name)
3925 default-name)
3938 gnus-number-of-articles-to-be-saved)
3941 ;; Let the split methods have their say.
3943 ;; No split name was found.
3949 default-name))
3950 ;; A single group name is returned.
3959 default-name))
3960 ;; A single split name was found
3964 gnus-article-save-directory))
3971 dir name)))
3972 ;; A list of splits was found.
3982 gnus-article-save-directory
3984 gnus-article-save-directory)))
3986 ;; Create the directory.
3988 ;; If we have read a directory, we append the default file name.
3991 default-name)
3993 ;; Possibly translate some characters.
4000 result))
4010 "If GROUP is an nndoc group, return the name of the parent group."
4015 "Append this article to Rmail file.
4016 Optional argument FILENAME specifies file name.
4017 Directory to save to is default to `gnus-article-save-directory'."
4019 "Save %s in rmail file" filename
4020 gnus-rmail-save-name gnus-newsgroup-name
4026 ;; Note that unlike gnus-summary-save-in-mail, there is no
4027 ;; check to see if filename is Babyl. Rmail in Emacs 23 does
4028 ;; not use Babyl.
4030 filename)
4033 "Append this article to Unix mail file.
4034 Optional argument FILENAME specifies file name.
4035 Directory to save to is default to `gnus-article-save-directory'."
4037 "Save %s in Unix mail file" filename
4038 gnus-mail-save-name gnus-newsgroup-name
4049 filename)
4054 "Append this article to file.
4055 Optional argument FILENAME specifies file name.
4056 Directory to save to is default to `gnus-article-save-directory'."
4058 "Save %s in file" filename
4059 gnus-file-save-name gnus-newsgroup-name
4069 filename)
4075 "Write this article to a file, overwriting it if the file exists.
4076 Optional argument FILENAME specifies file name.
4077 The directory to save in defaults to `gnus-article-save-directory'."
4079 "Save %s in file" filename
4080 gnus-file-save-name gnus-newsgroup-name
4086 "Append this article body to a file.
4087 Optional argument FILENAME specifies file name.
4088 The directory to save in defaults to `gnus-article-save-directory'."
4090 "Save %s body in file" filename
4091 gnus-file-save-name gnus-newsgroup-name
4103 filename)
4109 "Write this article body to a file, overwriting it if the file exists.
4110 Optional argument FILENAME specifies file name.
4111 The directory to save in defaults to `gnus-article-save-directory'."
4113 "Save %s body in file" filename
4114 gnus-file-save-name gnus-newsgroup-name
4121 "Pipe this article to subprocess COMMAND.
4122 Valid values for COMMAND include:
4123 a string
4124 The executable command name and possibly arguments.
4125 nil
4126 You will be prompted for the command in the minibuffer.
4127 the symbol `default'
4128 It will be replaced with the command which the variable
4129 `gnus-summary-pipe-output-default-command' holds or the command
4130 last used for saving.
4131 Non-nil value for RAW overrides `:decode' and `:headers' properties
4132 and the raw article including all headers will be piped."
4136 save-buffer default)
4144 gnus-article-buffer
4145 gnus-original-article-buffer)
4148 ;; Remove unwanted headers.
4155 gnus-saved-headers gnus-visible-headers))
4161 gnus-last-shell-command))
4165 default
4167 default))))
4180 "Pipe this article to muttprint."
4183 "Print using command: " gnus-summary-muttprint-program
4184 nil gnus-summary-muttprint-program)))
4186 gnus-summary-pipe-output-default-command))
4190 ;;; Article file names when saving.
4193 "Capitalize NEWSGROUP name."
4199 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4200 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
4201 Otherwise, it is like ~/News/news/group/num."
4208 gnus-article-save-directory)))
4213 default
4217 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4218 If variable `gnus-use-long-file-name' is non-nil, it is
4219 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4223 newsgroup
4226 gnus-article-save-directory)))
4231 default
4235 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4236 If variable `gnus-use-long-file-name' is non-nil, it is
4237 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4241 newsgroup
4244 default-directory))
4245 gnus-article-save-directory)))
4248 "Generate file name from sender."
4254 gnus-article-save-directory)))
4257 "Verify X-PGP-Sig."
4258 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4263 items info headers)
4265 mml2015-use
4273 ;; Don't verify multiple headers.
4323 ;; Do highlighting.
4334 "Verify Cancel-Lock header."
4358 article-verify-x-pgp-sig
4359 article-verify-cancel-lock
4360 article-hide-boring-headers
4361 article-treat-overstrike
4362 article-treat-ansi-sequences
4363 article-fill-long-lines
4364 article-capitalize-sentences
4365 article-remove-cr
4366 article-remove-leading-whitespace
4367 article-display-x-face
4368 article-display-face
4369 article-de-quoted-unreadable
4370 article-de-base64-unreadable
4371 article-decode-HZ
4372 article-wash-html
4373 article-unsplit-urls
4374 article-hide-list-identifiers
4375 article-strip-banner
4376 article-babel
4377 article-hide-pem
4378 article-hide-signature
4379 article-strip-headers-in-body
4380 article-remove-trailing-blank-lines
4381 article-strip-leading-blank-lines
4382 article-strip-multiple-blank-lines
4383 article-strip-leading-space
4384 article-strip-trailing-space
4385 article-strip-blank-lines
4386 article-strip-all-blank-lines
4387 article-date-local
4388 article-date-english
4389 article-date-iso8601
4390 article-date-original
4391 article-treat-date
4392 article-date-ut
4393 article-decode-mime-words
4394 article-decode-charset
4395 article-decode-encoded-words
4396 article-date-user
4397 article-date-lapsed
4398 article-date-combined-lapsed
4399 article-emphasize
4400 article-treat-dumbquotes
4401 article-treat-non-ascii
4402 article-normalize-headers
4403 ;;(article-show-all . gnus-article-show-all-headers)
4404 )))
4405 \f
4406 ;;;
4407 ;;; Gnus article mode
4408 ;;;
4415 " " gnus-article-goto-next-page
4418 [delete] gnus-article-goto-prev-page
4419 "\C-c^" gnus-article-refer-article
4420 "h" gnus-article-show-summary
4421 "s" gnus-article-show-summary
4422 "\C-c\C-m" gnus-article-mail
4423 "?" gnus-article-describe-briefly
4424 "<" beginning-of-buffer
4425 ">" end-of-buffer
4426 "\C-c\C-i" gnus-info-find-node
4427 "\C-c\C-b" gnus-bug
4428 "R" gnus-article-reply-with-original
4429 "F" gnus-article-followup-with-original
4430 "\C-hk" gnus-article-describe-key
4431 "\C-hc" gnus-article-describe-key-briefly
4432 "\C-hb" gnus-article-describe-bindings
4434 "e" gnus-article-read-summary-keys
4435 "\C-d" gnus-article-read-summary-keys
4436 "\M-*" gnus-article-read-summary-keys
4437 "\M-#" gnus-article-read-summary-keys
4438 "\M-^" gnus-article-read-summary-keys
4439 "\M-g" gnus-article-read-summary-keys)
4441 (substitute-key-definition
4442 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4444 (defvar gnus-article-send-map)
4446 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4447 "W" gnus-article-wide-reply-with-original)
4448 (if (featurep 'xemacs)
4449 (set-keymap-default-binding gnus-article-send-map
4450 'gnus-article-read-summary-send-keys)
4451 (define-key gnus-article-send-map [t] 'gnus-article-read-summary-send-keys))
4453 (defun gnus-article-make-menu-bar ()
4454 (unless (boundp 'gnus-article-commands-menu)
4455 (gnus-summary-make-menu-bar))
4456 (unless (boundp 'gnus-article-article-menu)
4457 (easy-menu-define
4458 gnus-article-article-menu gnus-article-mode-map ""
4459 '("Article"
4460 ["Scroll forwards" gnus-article-goto-next-page t]
4461 ["Scroll backwards" gnus-article-goto-prev-page t]
4462 ["Show summary" gnus-article-show-summary t]
4463 ["Fetch Message-ID at point" gnus-article-refer-article t]
4464 ["Mail to address at point" gnus-article-mail t]
4465 ["Send a bug report" gnus-bug t]))
4467 (easy-menu-define
4468 gnus-article-treatment-menu gnus-article-mode-map ""
4469 ;; Fixme: this should use :active (and maybe :visible).
4470 '("Treatment"
4471 ["Hide headers" gnus-article-hide-headers t]
4472 ["Hide signature" gnus-article-hide-signature t]
4473 ["Hide citation" gnus-article-hide-citation t]
4474 ["Treat overstrike" gnus-article-treat-overstrike t]
4475 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4476 ["Remove carriage return" gnus-article-remove-cr t]
4477 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4478 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4479 ["Remove base64" gnus-article-de-base64-unreadable t]
4480 ["Treat html" gnus-article-wash-html t]
4481 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4482 ["Decode HZ" gnus-article-decode-HZ t]))
4484 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4486 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4488 (gnus-run-hooks 'gnus-article-menu-hook)))
4490 (defvar bookmark-make-record-function)
4491 (defvar shr-put-image-function)
4493 (define-derived-mode gnus-article-mode fundamental-mode "Article"
4494 "Major mode for displaying an article.
4496 All normal editing commands are switched off.
4498 The following commands are available in addition to all summary mode
4499 commands:
4508 (gnus-simplify-mode-line)
4509 (make-local-variable 'minor-mode-alist)
4510 (when (gnus-visual-p 'article-menu 'menu)
4511 (gnus-article-make-menu-bar)
4512 (when gnus-summary-tool-bar-map
4513 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4514 (gnus-update-format-specifications nil 'article-mode)
4515 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4516 (set (make-local-variable 'gnus-page-broken) nil)
4517 (make-local-variable 'gnus-article-current-summary)
4518 (make-local-variable 'gnus-article-mime-handles)
4519 (make-local-variable 'gnus-article-decoded-p)
4520 (make-local-variable 'gnus-article-mime-handle-alist)
4521 (make-local-variable 'gnus-article-wash-types)
4522 (make-local-variable 'gnus-article-image-alist)
4523 (make-local-variable 'gnus-article-charset)
4524 (make-local-variable 'gnus-article-ignored-charsets)
4525 (set (make-local-variable 'bookmark-make-record-function)
4526 'gnus-summary-bookmark-make-record)
4527 ;; Prevent Emacs 22 from displaying non-break space with `nobreak-space'
4528 ;; face.
4529 (set (make-local-variable 'nobreak-char-display) nil)
4530 ;; Enable `gnus-article-remove-images' to delete images shr.el renders.
4531 (set (make-local-variable 'shr-put-image-function) 'gnus-shr-put-image)
4532 (setq cursor-in-non-selected-windows nil)
4533 (gnus-set-default-directory)
4534 (buffer-disable-undo)
4535 (setq buffer-read-only t
4536 show-trailing-whitespace nil)
4537 (mm-enable-multibyte))
4539 (defun gnus-article-setup-buffer ()
4540 "Initialize the article buffer."
4541 (let* ((name (if gnus-single-article-buffer "*Article*"
4542 (concat "*Article "
4543 (gnus-group-decoded-name gnus-newsgroup-name)
4544 "*")))
4545 (original
4547 (concat " *Original Article"
4548 (substring name (match-end 0))))))
4549 (setq gnus-article-buffer name)
4550 (setq gnus-original-article-buffer original)
4551 (setq gnus-article-mime-handle-alist nil)
4552 (with-current-buffer gnus-summary-buffer
4553 ;; This might be a variable local to the summary buffer.
4554 (unless gnus-single-article-buffer
4555 (setq gnus-article-buffer name)
4556 (setq gnus-original-article-buffer original)
4557 (gnus-set-global-variables)))
4558 (gnus-article-setup-highlight-words)
4559 ;; Init original article buffer.
4560 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4561 (mm-enable-multibyte)
4562 (setq major-mode 'gnus-original-article-mode)
4563 (make-local-variable 'gnus-original-article))
4564 (if (and (get-buffer name)
4565 (with-current-buffer name
4566 (if gnus-article-edit-mode
4567 (if (y-or-n-p "Article mode edit in progress; discard? ")
4568 (progn
4569 (set-buffer-modified-p nil)
4570 (gnus-kill-buffer name)
4571 (message "")
4572 nil)
4573 (error "Action aborted"))
4574 t)))
4575 (let ((summary gnus-summary-buffer))
4576 (with-current-buffer name
4577 (set (make-local-variable 'gnus-article-edit-mode) nil)
4578 (gnus-article-stop-animations)
4579 (when gnus-article-mime-handles
4580 (mm-destroy-parts gnus-article-mime-handles)
4581 (setq gnus-article-mime-handles nil))
4582 ;; Set it to nil in article-buffer!
4583 (setq gnus-article-mime-handle-alist nil)
4584 (buffer-disable-undo)
4585 (setq buffer-read-only t)
4586 (unless (derived-mode-p 'gnus-article-mode)
4587 (gnus-article-mode))
4588 (set (make-local-variable 'gnus-summary-buffer) summary)
4589 (setq truncate-lines gnus-article-truncate-lines)
4590 (current-buffer)))
4591 (let ((summary gnus-summary-buffer))
4592 (with-current-buffer (gnus-get-buffer-create name)
4593 (gnus-article-mode)
4594 (setq truncate-lines gnus-article-truncate-lines)
4595 (set (make-local-variable 'gnus-summary-buffer) summary)
4596 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4597 (when article-lapsed-timer
4598 (gnus-stop-date-timer))
4599 (when gnus-article-update-date-headers
4600 (gnus-start-date-timer gnus-article-update-date-headers))
4601 (current-buffer))))))
4603 (defun gnus-article-stop-animations ()
4604 (dolist (timer (and (boundp 'timer-list)
4605 timer-list))
4606 (when (eq (gnus-timer--function timer) 'image-animate-timeout)
4607 (cancel-timer timer))))
4609 (defun gnus-stop-downloads ()
4610 (when (boundp 'url-queue)
4611 (set (intern "url-queue" obarray) nil)))
4613 ;; Set article window start at LINE, where LINE is the number of lines
4614 ;; from the head of the article.
4615 (defun gnus-article-set-window-start (&optional line)
4616 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4617 (when article-window
4618 (set-window-start
4619 article-window
4620 (with-current-buffer gnus-article-buffer
4621 (goto-char (point-min))
4622 (if (not line)
4623 (point-min)
4624 (gnus-message 6 "Moved to bookmark")
4626 (forward-line line)
4627 (point)))))))
4629 (defvar gnus-tmp-internal-hook)
4631 (defun gnus-article-prepare (article &optional all-headers _header)
4632 "Prepare ARTICLE in article mode buffer.
4633 ARTICLE should either be an article number or a Message-ID.
4634 If ARTICLE is an id, HEADER should be the article headers.
4635 If ALL-HEADERS is non-nil, no headers are hidden."
4636 (save-excursion ;FIXME: Shouldn't that be save-current-buffer?
4637 ;; Make sure we start in a summary buffer.
4638 (unless (derived-mode-p 'gnus-summary-mode)
4639 (set-buffer gnus-summary-buffer))
4640 (setq gnus-summary-buffer (current-buffer))
4641 (let* ((summary-buffer (current-buffer))
4642 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4643 (group gnus-newsgroup-name)
4644 result)
4645 (save-excursion
4646 (gnus-article-setup-buffer)
4647 (set-buffer gnus-article-buffer)
4648 ;; Deactivate active regions.
4649 (when (and (boundp 'transient-mark-mode)
4650 transient-mark-mode)
4651 (setq mark-active nil))
4652 (if (not (setq result (let ((inhibit-read-only t))
4653 (gnus-request-article-this-buffer
4654 article group))))
4655 ;; There is no such article.
4656 (save-excursion
4657 (when (and (numberp article)
4658 (not (memq article gnus-newsgroup-sparse)))
4659 (setq gnus-article-current
4660 (cons gnus-newsgroup-name article))
4661 (set-buffer gnus-summary-buffer)
4662 (setq gnus-current-article article)
4663 (if (and (memq article gnus-newsgroup-undownloaded)
4664 (not (gnus-online (gnus-find-method-for-group
4665 gnus-newsgroup-name))))
4666 (progn
4667 (gnus-summary-set-agent-mark article)
4668 (message "Message marked for downloading"))
4669 (gnus-summary-mark-article article gnus-canceled-mark)
4670 (unless (memq article gnus-newsgroup-sparse)
4671 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4672 (if (or (eq result 'pseudo)
4673 (eq result 'nneething))
4674 (progn
4675 (with-current-buffer summary-buffer
4676 (push article gnus-newsgroup-history)
4677 (setq gnus-last-article gnus-current-article
4678 gnus-current-article 0
4679 gnus-current-headers nil
4680 gnus-article-current nil)
4681 (if (eq result 'nneething)
4682 (gnus-configure-windows 'summary)
4683 (gnus-configure-windows 'article))
4684 (gnus-set-global-variables))
4685 (let ((gnus-article-mime-handle-alist-1
4686 gnus-article-mime-handle-alist))
4687 (gnus-set-mode-line 'article)))
4688 ;; The result from the `request' was an actual article -
4689 ;; or at least some text that is now displayed in the
4690 ;; article buffer.
4691 (when (and (numberp article)
4692 (not (eq article gnus-current-article)))
4693 ;; Seems like a new article has been selected.
4694 ;; `gnus-current-article' must be an article number.
4695 (with-current-buffer summary-buffer
4696 (push article gnus-newsgroup-history)
4697 (setq gnus-last-article gnus-current-article
4698 gnus-current-article article
4699 gnus-current-headers
4700 (gnus-summary-article-header gnus-current-article)
4701 gnus-article-current
4702 (cons gnus-newsgroup-name gnus-current-article))
4703 (unless (vectorp gnus-current-headers)
4704 (setq gnus-current-headers nil))
4705 (gnus-summary-goto-subject gnus-current-article)
4706 (when (gnus-summary-show-thread)
4707 ;; If the summary buffer really was folded, the
4708 ;; previous goto may not actually have gone to
4709 ;; the right article, but the thread root instead.
4710 ;; So we go again.
4711 (gnus-summary-goto-subject gnus-current-article))
4712 (gnus-run-hooks 'gnus-mark-article-hook)
4713 (gnus-set-mode-line 'summary)
4714 (when (gnus-visual-p 'article-highlight 'highlight)
4715 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4716 ;; Set the global newsgroup variables here.
4717 (gnus-set-global-variables)
4718 (setq gnus-have-all-headers
4719 (or all-headers gnus-show-all-headers))))
4720 (save-excursion
4721 (gnus-configure-windows 'article))
4722 (when (or (numberp article)
4723 (stringp article))
4724 (gnus-article-prepare-display)
4725 ;; Do page break.
4726 (goto-char (point-min))
4727 (when gnus-break-pages
4728 (gnus-narrow-to-page)))
4729 (let ((gnus-article-mime-handle-alist-1
4730 gnus-article-mime-handle-alist))
4731 (gnus-set-mode-line 'article))
4732 (article-goto-body)
4733 (unless (bobp)
4734 (forward-line -1))
4735 (set-window-point (get-buffer-window (current-buffer)) (point))
4736 (gnus-configure-windows 'article)
4737 (gnus-run-hooks 'gnus-article-prepare-hook)
4738 t))))))
4740 (defvar gnus-mime-display-attachment-buttons-in-header)
4742 ;;;###autoload
4743 (defun gnus-article-prepare-display ()
4744 "Make the current buffer look like a nice article."
4745 ;; Hooks for getting information from the article.
4746 ;; This hook must be called before being narrowed.
4747 (let ((gnus-article-buffer (current-buffer))
4748 buffer-read-only
4749 (inhibit-read-only t))
4750 (unless (derived-mode-p 'gnus-article-mode)
4751 (gnus-article-mode))
4752 (setq buffer-read-only nil
4753 gnus-article-wash-types nil
4754 gnus-article-image-alist nil)
4755 (gnus-run-hooks 'gnus-tmp-internal-hook)
4756 (when gnus-display-mime-function
4757 (funcall gnus-display-mime-function))
4758 ;; Add attachment buttons to the header.
4759 (when gnus-mime-display-attachment-buttons-in-header
4760 (gnus-mime-buttonize-attachments-in-header))))
4762 ;;;
4763 ;;; Gnus Sticky Article Mode
4764 ;;;
4766 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4767 "Mode for sticky articles."
4768 ;; Release bindings that won't work.
4769 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4770 gnus-sticky-article-mode-map)
4771 (substitute-key-definition 'gnus-article-refer-article 'undefined
4772 gnus-sticky-article-mode-map)
4773 (dolist (k '("e" "h" "s" "F" "R"))
4774 (define-key gnus-sticky-article-mode-map k nil))
4775 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4776 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4777 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4778 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4780 (defun gnus-sticky-article (arg)
4781 "Make the current article sticky.
4782 If a prefix ARG is given, ask for a name for this sticky article buffer."
4783 (interactive "P")
4784 (gnus-summary-show-thread)
4785 (gnus-summary-select-article nil nil 'pseudo)
4786 (let (new-art-buf-name)
4787 (gnus-eval-in-buffer-window gnus-article-buffer
4788 (setq new-art-buf-name
4789 (concat
4790 "*Sticky Article: "
4791 (if arg
4792 (read-from-minibuffer "Sticky article buffer name: ")
4793 (gnus-with-article-headers
4794 (gnus-article-goto-header "subject")
4795 (setq new-art-buf-name
4796 (buffer-substring-no-properties
4797 (line-beginning-position) (line-end-position)))
4798 (goto-char (point-min))
4799 (gnus-article-goto-header "from")
4800 (setq new-art-buf-name
4801 (concat
4802 new-art-buf-name ", "
4803 (buffer-substring-no-properties
4804 (line-beginning-position) (line-end-position))))
4805 (goto-char (point-min))
4806 (gnus-article-goto-header "date")
4807 (setq new-art-buf-name
4808 (concat
4809 new-art-buf-name ", "
4810 (buffer-substring-no-properties
4811 (line-beginning-position) (line-end-position))))))
4812 "*"))
4813 (if (and (gnus-buffer-live-p new-art-buf-name)
4814 (with-current-buffer new-art-buf-name
4815 (derived-mode-p 'gnus-sticky-article-mode)))
4816 (switch-to-buffer new-art-buf-name)
4817 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4818 (gnus-sticky-article-mode))
4819 (setq gnus-article-buffer new-art-buf-name))
4820 (gnus-summary-recenter)
4821 (gnus-summary-position-point))
4823 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4824 "Kill the given sticky article BUFFER.
4825 If none is given, assume the current buffer and kill it if it has
4826 `gnus-sticky-article-mode'."
4827 (interactive)
4828 (unless buffer
4829 (setq buffer (current-buffer)))
4830 (with-current-buffer buffer
4831 (when (derived-mode-p 'gnus-sticky-article-mode)
4832 (gnus-kill-buffer buffer))))
4834 (defun gnus-kill-sticky-article-buffers (arg)
4835 "Kill all sticky article buffers.
4836 If a prefix ARG is given, ask for confirmation."
4837 (interactive "P")
4838 (dolist (buf (gnus-buffers))
4839 (with-current-buffer buf
4840 (when (derived-mode-p 'gnus-sticky-article-mode)
4841 (if (not arg)
4842 (gnus-kill-buffer buf)
4843 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4844 (gnus-kill-buffer buf)))))))
4846 ;;;
4847 ;;; Gnus MIME viewing functions
4848 ;;;
4851 "Format of the MIME buttons.
4853 Valid specifiers include:
4854 %t The MIME type
4855 %T MIME type, along with additional info
4856 %n The `name' parameter
4857 %d The description, if any
4858 %l The length of the encoded part
4859 %p The part identifier number
4860 %e Dots if the part isn't displayed
4862 General format specifiers can also be used. See Info node
4863 `(gnus)Formatting Variables'.")
4865 (defvar gnus-tmp-type)
4866 (defvar gnus-tmp-type-long)
4867 (defvar gnus-tmp-name)
4868 (defvar gnus-tmp-description)
4869 (defvar gnus-tmp-id)
4870 (defvar gnus-tmp-length)
4871 (defvar gnus-tmp-dots)
4872 (defvar gnus-tmp-info)
4873 (defvar gnus-tmp-pressed-details)
4875 (defvar gnus-mime-button-line-format-alist
4876 '((?t gnus-tmp-type ?s)
4877 (?T gnus-tmp-type-long ?s)
4878 (?n gnus-tmp-name ?s)
4879 (?d gnus-tmp-description ?s)
4880 (?p gnus-tmp-id ?s)
4881 (?l gnus-tmp-length ?d)
4882 (?e gnus-tmp-dots ?s)))
4884 (defvar gnus-mime-button-commands
4886 (gnus-mime-view-part "v" "View Interactively...")
4887 (gnus-mime-view-part-as-type "t" "View As Type...")
4888 (gnus-mime-view-part-as-charset "C" "View As charset...")
4889 (gnus-mime-save-part "o" "Save...")
4890 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4891 (gnus-mime-replace-part "r" "Replace part")
4892 (gnus-mime-delete-part "d" "Delete part")
4893 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4894 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4895 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4896 (gnus-mime-view-part-externally "e" "View Externally")
4897 (gnus-mime-print-part "p" "Print")
4898 (gnus-mime-pipe-part "|" "Pipe To Command...")
4899 (gnus-mime-action-on-part "." "Take action on the part...")))
4901 (defun gnus-article-mime-part-status ()
4902 (if gnus-article-mime-handle-alist-1
4903 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4904 " (1 part)"
4905 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4906 ""))
4908 (defvar gnus-mime-button-map
4909 (let ((map (make-sparse-keymap)))
4910 (define-key map gnus-mouse-2 'gnus-article-push-button)
4911 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4912 (dolist (c gnus-mime-button-commands)
4913 (define-key map (cadr c) (car c)))
4914 map))
4916 (easy-menu-define
4917 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4918 `("MIME Part"
4919 ,@(mapcar (lambda (c)
4920 (vector (caddr c) (car c) :active t))
4921 gnus-mime-button-commands)))
4923 (defvar gnus-url-button-commands
4924 '((gnus-article-copy-string "u" "Copy URL to kill ring")))
4926 (defvar gnus-url-button-map
4927 (let ((map (make-sparse-keymap)))
4928 (dolist (c gnus-url-button-commands)
4929 (define-key map (cadr c) (car c)))
4930 map))
4932 (easy-menu-define
4933 gnus-url-button-menu gnus-url-button-map "URL button menu."
4934 `("Url Button"
4935 ,@(mapcar (lambda (c)
4936 (vector (caddr c) (car c) :active t))
4937 gnus-url-button-commands)))
4939 (defmacro gnus-bind-safe-url-regexp (&rest body)
4940 "Bind `mm-w3m-safe-url-regexp' according to `gnus-safe-html-newsgroups'."
4941 `(let ((mm-w3m-safe-url-regexp
4942 (let ((group (if (and (derived-mode-p 'gnus-article-mode)
4943 (gnus-buffer-live-p
4944 gnus-article-current-summary))
4945 (with-current-buffer gnus-article-current-summary
4946 gnus-newsgroup-name)
4947 gnus-newsgroup-name)))
4948 (if (cond ((not group)
4949 ;; Maybe we're in a mml-preview buffer
4950 ;; and no group is selected.
4951 t)
4952 ((stringp gnus-safe-html-newsgroups)
4953 (string-match gnus-safe-html-newsgroups group))
4954 ((consp gnus-safe-html-newsgroups)
4955 (member group gnus-safe-html-newsgroups)))
4956 nil
4957 mm-w3m-safe-url-regexp))))
4958 ,@body))
4960 (defun gnus-mime-button-menu (event prefix)
4961 "Construct a context-sensitive menu of MIME commands."
4963 (save-window-excursion
4964 (let ((pos (event-start event)))
4965 (select-window (posn-window pos))
4966 (goto-char (posn-point pos))
4967 (gnus-article-check-buffer)
4968 (popup-menu gnus-mime-button-menu nil prefix))))
4970 (defun gnus-mime-view-all-parts (&optional handles)
4971 "View all the MIME parts."
4972 (interactive)
4973 (with-current-buffer gnus-article-buffer
4974 (let ((handles (or handles gnus-article-mime-handles))
4975 (mail-parse-charset gnus-newsgroup-charset)
4976 (mail-parse-ignored-charsets
4977 (with-current-buffer gnus-summary-buffer
4978 gnus-newsgroup-ignored-charsets)))
4979 (when handles
4980 (mm-remove-parts handles)
4981 (goto-char (point-min))
4983 (let ((inhibit-read-only t))
4984 (delete-region (point) (point-max))
4985 (gnus-bind-safe-url-regexp (mm-display-parts handles)))))))
4987 (defun gnus-article-jump-to-part (n)
4988 "Jump to MIME part N."
4989 (interactive "P")
4990 (let ((parts (with-current-buffer gnus-article-buffer
4991 (length gnus-article-mime-handle-alist))))
4992 (when (zerop parts)
4993 (error "No such part"))
4994 (pop-to-buffer gnus-article-buffer)
4995 (or n
4996 (setq n (if (= parts 1)
4997 1
4998 (read-number (format "Jump to part (1..%s): " parts)))))
4999 (unless (and (integerp n) (<= n parts) (>= n 1))
5000 (setq n
5001 (progn
5002 (gnus-message 7 "Invalid part `%s', using %s instead."
5003 n parts)
5004 parts)))
5005 (gnus-message 9 "Jumping to part %s." n)
5006 (cond ((>= gnus-auto-select-part 1)
5007 (while (and (<= n parts)
5008 (not (gnus-article-goto-part n)))
5009 (setq n (1+ n))))
5010 ((< gnus-auto-select-part 0)
5011 (while (and (>= n 1)
5012 (not (gnus-article-goto-part n)))
5013 (setq n (1- n))))
5014 (t
5015 (gnus-article-goto-part n)))))
5017 (defvar gnus-mime-buttonized-part-id nil
5018 "ID of a mime part that should be buttonized.
5019 `gnus-mime-save-part-and-strip' and `gnus-mime-delete-part' bind it.")
5021 (eval-when-compile
5022 (defsubst gnus-article-edit-part (handles &optional current-id)
5023 "Edit an article in order to delete a mime part.
5024 This function is exclusively used by `gnus-mime-save-part-and-strip'
5025 and `gnus-mime-delete-part', and not provided at run-time normally."
5026 (gnus-article-edit-article
5027 `(lambda ()
5028 (buffer-disable-undo)
5029 (let ((mail-parse-charset (or gnus-article-charset
5030 ',gnus-newsgroup-charset))
5031 (mail-parse-ignored-charsets
5032 (or gnus-article-ignored-charsets
5033 ',gnus-newsgroup-ignored-charsets))
5034 (mbl mml-buffer-list))
5035 (setq mml-buffer-list nil)
5036 ;; A new text must be inserted before deleting existing ones
5037 ;; at the end so as not to move existing markers of which
5038 ;; the insertion type is t.
5039 (delete-region
5040 (point-min)
5041 (prog1
5042 (goto-char (point-max))
5043 (insert-buffer-substring gnus-original-article-buffer)))
5044 (mime-to-mml ',handles)
5045 (setq gnus-article-mime-handles nil)
5046 (let ((mbl1 mml-buffer-list))
5047 (setq mml-buffer-list mbl)
5048 (set (make-local-variable 'mml-buffer-list) mbl1))
5049 (gnus-make-local-hook 'kill-buffer-hook)
5050 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
5051 `(lambda (no-highlight)
5052 (let ((mail-parse-charset (or gnus-article-charset
5053 ',gnus-newsgroup-charset))
5054 (message-options message-options)
5055 (message-options-set-recipient)
5056 (mail-parse-ignored-charsets
5057 (or gnus-article-ignored-charsets
5058 ',gnus-newsgroup-ignored-charsets)))
5059 (mml-to-mime)
5060 (mml-destroy-buffers)
5061 (remove-hook 'kill-buffer-hook
5062 'mml-destroy-buffers t)
5063 (kill-local-variable 'mml-buffer-list))
5064 (gnus-summary-edit-article-done
5065 ,(or (mail-header-references gnus-current-headers) "")
5066 ,(gnus-group-read-only-p)
5067 ,gnus-summary-buffer no-highlight))
5068 t)
5069 ;; Force buttonizing this part.
5070 (let ((gnus-mime-buttonized-part-id current-id))
5071 (gnus-article-edit-done))
5072 (gnus-configure-windows 'article)
5073 (sit-for 0)
5074 (when (and current-id (integerp gnus-auto-select-part))
5075 (gnus-article-jump-to-part
5076 (min (max (+ current-id gnus-auto-select-part) 1)
5077 (with-current-buffer gnus-article-buffer
5078 (length gnus-article-mime-handle-alist)))))))
5080 (defun gnus-mime-replace-part (file)
5081 "Replace MIME part under point with an external body."
5082 ;; Useful if file has already been saved to disk
5083 (interactive
5084 (list
5085 (read-file-name "Replace MIME part with file: "
5086 (or mm-default-directory default-directory)
5087 nil nil)))
5088 (gnus-mime-save-part-and-strip file))
5090 (defun gnus-mime-save-part-and-strip (&optional file)
5091 "Save the MIME part under point then replace it with an external body.
5092 If FILE is given, use it for the external part."
5093 (interactive)
5094 (gnus-article-check-buffer)
5095 (when (gnus-group-read-only-p)
5096 (error "The current group does not support deleting of parts"))
5097 (when (mm-complicated-handles gnus-article-mime-handles)
5098 (error "\
5099 The current article has a complicated MIME structure, giving up..."))
5100 (let* ((data (get-text-property (point) 'gnus-data))
5101 (id (get-text-property (point) 'gnus-part))
5102 (handles gnus-article-mime-handles))
5103 (unless file
5104 (setq file
5105 (and data (mm-save-part data "Delete MIME part and save to: "))))
5106 (when file
5107 (with-current-buffer (mm-handle-buffer data)
5108 (erase-buffer)
5109 (insert "Content-Type: " (mm-handle-media-type data))
5110 (mml-insert-parameter-string (cdr (mm-handle-type data))
5111 '(charset))
5112 ;; Add a filename for the sake of saving the part again.
5113 (mml-insert-parameter
5114 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
5119 (setcdr data
5120 (cdr (mm-make-handle nil
5121 `("message/external-body"
5122 (access-type . "LOCAL-FILE")
5123 (name . ,file)))))
5124 ;; (set-buffer gnus-summary-buffer)
5125 (gnus-article-edit-part handles id))))
5127 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
5128 ;; parts...>') but with stripping would be nice.
5130 (defun gnus-mime-delete-part ()
5131 "Delete the MIME part under point.
5132 Replace it with some information about the removed part."
5133 (interactive)
5134 (gnus-article-check-buffer)
5135 (when (gnus-group-read-only-p)
5136 (error "The current group does not support deleting of parts"))
5137 (when (mm-complicated-handles gnus-article-mime-handles)
5138 (error "\
5139 The current article has a complicated MIME structure, giving up..."))
5140 (when (or gnus-expert-user
5141 (gnus-yes-or-no-p "\
5142 Deleting parts may malfunction or destroy the article; continue? "))
5143 (let* ((data (get-text-property (point) 'gnus-data))
5144 (id (get-text-property (point) 'gnus-part))
5145 (handles gnus-article-mime-handles)
5146 (description
5147 (let ((desc (mm-handle-description data)))
5148 (when desc
5149 (mail-decode-encoded-word-string desc))))
5150 (filename (or (mm-handle-filename data) "(none)"))
5151 (type (mm-handle-media-type data)))
5152 (unless data
5153 (error "No MIME part under point"))
5154 (with-current-buffer (mm-handle-buffer data)
5155 (let ((bsize (buffer-size)))
5156 (erase-buffer)
5157 (insert
5158 (concat
5165 bsize (if (= bsize 1)
5166 ""
5167 "s"))
5168 (when description
5171 (setcdr data
5172 (cdr (mm-make-handle
5173 nil `("text/plain" (charset . gnus-decoded)) nil nil
5174 (list "attachment")
5175 (format "Deleted attachment (%s bytes)" bsize))))))
5176 ;; (set-buffer gnus-summary-buffer)
5177 (gnus-article-edit-part handles id))))
5179 (defun gnus-mime-save-part ()
5180 "Save the MIME part under point."
5181 (interactive)
5182 (gnus-article-check-buffer)
5183 (let ((data (get-text-property (point) 'gnus-data)))
5184 (when data
5185 (mm-save-part data))))
5187 (defun gnus-mime-pipe-part (&optional cmd)
5188 "Pipe the MIME part under point to a process.
5189 Use CMD as the process."
5190 (interactive)
5191 (gnus-article-check-buffer)
5192 (let ((data (get-text-property (point) 'gnus-data)))
5193 (when data
5194 (mm-pipe-part data cmd))))
5196 (defun gnus-mime-view-part ()
5197 "Interactively choose a viewing method for the MIME part under point."
5198 (interactive)
5199 (gnus-article-check-buffer)
5200 (let ((data (get-text-property (point) 'gnus-data)))
5201 (when data
5202 (setq gnus-article-mime-handles
5203 (mm-merge-handles
5204 gnus-article-mime-handles (setq data (copy-sequence data))))
5205 (mm-interactively-view-part data))))
5207 (defun gnus-mime-view-part-as-type-internal ()
5208 (gnus-article-check-buffer)
5209 (let* ((handle (get-text-property (point) 'gnus-data))
5210 (name (or
5211 ;; Content-Type: foo/bar; name=...
5212 (mail-content-type-get (mm-handle-type handle) 'name)
5213 ;; Content-Disposition: attachment; filename=...
5214 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
5215 (def-type (and name (mm-default-file-encoding name))))
5216 (or (and def-type (cons def-type 0))
5217 (and handle
5218 (equal (mm-handle-media-supertype handle) "text")
5219 '("text/plain" . 0))
5220 '("application/octet-stream" . 0))))
5222 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
5223 "Choose a MIME media type, and view the part as such.
5224 If non-nil, PRED is a predicate to use during completion to limit the
5225 available media-types."
5226 (interactive)
5227 (unless mime-type
5228 (setq mime-type
5229 (let ((default (gnus-mime-view-part-as-type-internal)))
5230 (gnus-completing-read
5231 "View as MIME type"
5232 (if pred
5233 (gnus-remove-if-not pred (mailcap-mime-types))
5234 (mailcap-mime-types))
5235 nil nil nil
5236 (car default)))))
5237 (gnus-article-check-buffer)
5238 (let ((handle (get-text-property (point) 'gnus-data)))
5239 (when handle
5240 (when (equal (mm-handle-media-type handle) "message/external-body")
5241 (unless (mm-handle-cache handle)
5242 (mm-extern-cache-contents handle))
5243 (setq handle (mm-handle-cache handle)))
5244 (setq handle
5245 (mm-make-handle (mm-handle-buffer handle)
5246 (cons mime-type (cdr (mm-handle-type handle)))
5247 (mm-handle-encoding handle)
5248 (mm-handle-undisplayer handle)
5249 (mm-handle-disposition handle)
5250 (mm-handle-description handle)
5251 nil
5252 (mm-handle-id handle)))
5253 (setq gnus-article-mime-handles
5254 (mm-merge-handles gnus-article-mime-handles handle))
5255 (when (mm-handle-displayed-p handle)
5256 (mm-remove-part handle))
5257 (gnus-mm-display-part handle))))
5259 (defun gnus-mime-copy-part (&optional handle arg)
5260 "Put the MIME part under point into a new buffer.
5261 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
5262 are decompressed."
5263 (interactive (list nil current-prefix-arg))
5264 (gnus-article-check-buffer)
5265 (unless handle
5266 (setq handle (get-text-property (point) 'gnus-data)))
5267 (when handle
5268 (let ((filename (mm-handle-filename handle))
5269 contents dont-decode charset coding-system)
5270 (mm-with-unibyte-buffer
5271 (mm-insert-part handle)
5272 (setq contents (or (condition-case nil
5273 (mm-decompress-buffer filename nil 'sig)
5274 (error
5275 (setq dont-decode t)
5276 nil))
5277 (buffer-string))))
5278 (setq filename (cond (filename (file-name-nondirectory filename))
5279 (dont-decode "*raw data*")
5280 (t "*decoded*")))
5281 (cond
5282 (dont-decode)
5283 ((not arg)
5284 (unless (setq charset (mail-content-type-get
5285 (mm-handle-type handle) 'charset))
5286 (unless (setq coding-system (mm-with-unibyte-buffer
5287 (insert contents)
5288 (mm-find-buffer-file-coding-system)))
5289 (setq charset gnus-newsgroup-charset))))
5290 ((numberp arg)
5291 (setq charset (or (cdr (assq arg
5292 gnus-summary-show-article-charset-alist))
5293 (mm-read-coding-system "Charset: ")))))
5294 (switch-to-buffer (generate-new-buffer filename))
5295 (if (or coding-system
5296 (and charset
5297 (setq coding-system (mm-charset-to-coding-system
5298 charset nil t))
5299 (not (eq coding-system 'ascii))))
5300 (progn
5301 (mm-enable-multibyte)
5302 (insert (mm-decode-coding-string contents coding-system))
5303 (setq buffer-file-coding-system
5304 (if (boundp 'last-coding-system-used)
5305 (symbol-value 'last-coding-system-used)
5306 coding-system)))
5307 (mm-disable-multibyte)
5308 (insert contents)
5309 (setq buffer-file-coding-system mm-binary-coding-system))
5310 ;; We do it this way to make `normal-mode' set the appropriate mode.
5311 (unwind-protect
5312 (progn
5313 (setq buffer-file-name (expand-file-name filename))
5314 (normal-mode))
5315 (setq buffer-file-name nil))
5316 (goto-char (point-min)))))
5318 (defun gnus-mime-print-part (&optional handle filename)
5319 "Print the MIME part under point."
5320 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5321 (gnus-article-check-buffer)
5322 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5323 (contents (and handle (mm-get-part handle)))
5324 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5325 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5326 (when contents
5327 (if printer
5328 (unwind-protect
5329 (progn
5330 (mm-save-part-to-file handle file)
5331 (call-process shell-file-name nil
5332 (generate-new-buffer " *mm*")
5333 nil
5334 shell-command-switch
5335 (mm-mailcap-command
5336 printer file (mm-handle-type handle))))
5337 (delete-file file))
5338 (with-temp-buffer
5339 (insert contents)
5340 (gnus-print-buffer))
5341 (ps-despool filename)))))
5343 (defun gnus-mime-inline-part (&optional handle arg)
5344 "Insert the MIME part under point into the current buffer.
5345 Compressed files like .gz and .bz2 are decompressed."
5346 (interactive (list nil current-prefix-arg))
5347 (gnus-article-check-buffer)
5348 (let* ((inhibit-read-only t)
5349 (b (point))
5350 (btn ;; position where the MIME button exists
5351 (if handle
5352 (if (eq handle (get-text-property b 'gnus-data))
5353 b
5354 (article-goto-body)
5355 (or (text-property-any (point) (point-max) 'gnus-data handle)
5356 (text-property-any (point-min) (point) 'gnus-data handle)))
5357 (setq handle (get-text-property b 'gnus-data))
5358 b))
5359 start)
5360 (when handle
5361 (when (= b (prog1
5362 btn
5363 (setq start (next-single-property-change btn 'gnus-data
5364 nil (point-max))
5365 btn (previous-single-property-change start
5366 'gnus-data))))
5367 (setq b btn))
5368 (if (and (not arg) (mm-handle-undisplayer handle))
5369 (progn
5370 (setq b (copy-marker b)
5371 btn (copy-marker btn))
5372 (mm-remove-part handle))
5373 (cond
5374 ((not arg) nil)
5375 ((numberp arg)
5376 (if (mm-handle-undisplayer handle)
5377 (mm-remove-part handle)))
5378 ((mm-handle-undisplayer handle)
5379 (mm-remove-part handle)))
5380 (goto-char start)
5381 (unless (bolp)
5382 ;; This is a header button.
5383 (forward-line 1))
5384 (mm-display-inline handle))
5385 ;; Toggle the button appearance between `[button]...' and `[button]'.
5386 (when (markerp btn)
5387 (setq btn (prog1 (marker-position btn)
5388 (set-marker btn nil))))
5389 (goto-char btn)
5390 (let ((displayed-p (mm-handle-displayed-p handle)))
5391 (gnus-insert-mime-button handle (get-text-property btn 'gnus-part)
5392 (list displayed-p))
5393 (if (featurep 'emacs)
5394 (delete-region
5395 (point)
5396 (next-single-property-change (point) 'gnus-data nil (point-max)))
5397 (let* ((end (next-single-property-change (point) 'gnus-data))
5398 (annots (annotations-at (or end (point-max)))))
5399 (delete-region (point)
5400 (if end
5401 (if annots (1+ end) end)
5402 (point-max)))
5403 (dolist (annot annots)
5404 (set-extent-endpoints annot (point) (point)))))
5405 (setq start (point))
5407 (progn
5408 (goto-char start)
5409 (unless (or displayed-p (eolp))
5410 ;; Add extra newline.
5411 (insert (propertize (buffer-substring (1- start) start)
5412 'gnus-undeletable t))))
5413 ;; We're in the article header.
5414 (delete-char -1)
5415 (dolist (ovl (gnus-overlays-in btn (point)))
5416 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
5417 (gnus-overlay-put ovl 'face nil))
5418 (save-restriction
5419 (message-narrow-to-field)
5420 (let ((gnus-treatment-function-alist
5421 '((gnus-treat-highlight-headers
5422 gnus-article-highlight-headers))))
5423 (gnus-treat-article 'head)))))
5424 (when (markerp b)
5425 (setq b (prog1 (marker-position b)
5426 (set-marker b nil))))
5427 (goto-char b))))
5429 (defun gnus-mime-set-charset-parameters (handle charset)
5430 "Set CHARSET to parameters in HANDLE.
5431 CHARSET may either be a string or a symbol."
5432 (unless (stringp charset)
5433 (setq charset (symbol-name charset)))
5434 (if (stringp (car handle))
5435 (dolist (h (cdr handle))
5436 (gnus-mime-set-charset-parameters h charset))
5437 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5438 "message/external-body")
5439 (progn
5440 (unless (mm-handle-cache handle)
5441 (mm-extern-cache-contents handle))
5442 (mm-handle-cache handle))
5443 handle)))
5444 (param (assq 'charset (cdr type))))
5445 (if param
5446 (setcdr param charset)
5447 (setcdr type (cons (cons 'charset charset) (cdr type)))))))
5449 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5450 "Insert the MIME part under point into the current buffer using the
5451 specified charset."
5452 (interactive (list nil current-prefix-arg))
5453 (gnus-article-check-buffer)
5454 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5455 (fun (get-text-property (point) 'gnus-callback))
5456 (gnus-newsgroup-ignored-charsets 'gnus-all)
5457 charset form preferred parts)
5458 (when handle
5459 (when (prog1
5460 (and fun
5461 (setq charset
5462 (or (cdr (assq
5463 arg
5464 gnus-summary-show-article-charset-alist))
5465 (mm-read-coding-system "Charset: "))))
5466 (if (mm-handle-undisplayer handle)
5467 (mm-remove-part handle)))
5468 (gnus-mime-set-charset-parameters handle charset)
5469 (when (and (consp (setq form (cdr-safe fun)))
5470 (setq form (ignore-errors
5471 (assq 'gnus-mime-display-alternative form)))
5472 (setq preferred (caddr form))
5473 (progn
5474 (when (eq (car preferred) 'quote)
5475 (setq preferred (cadr preferred)))
5476 (not (equal preferred
5477 (get-text-property (point) 'gnus-data))))
5478 (setq parts (get-text-property (point) 'gnus-part))
5479 (setq parts (cdr (assq parts
5480 gnus-article-mime-handle-alist)))
5481 (equal (mm-handle-media-type parts) "multipart/alternative")
5482 (setq parts (reverse (cdr parts))))
5483 (setcar (cddr form)
5484 (list 'quote (or (cadr (member preferred parts))
5485 (car parts)))))
5486 (funcall fun handle)))))
5488 (defun gnus-mime-view-part-externally (&optional handle)
5489 "View the MIME part under point with an external viewer."
5490 (interactive)
5491 (gnus-article-check-buffer)
5492 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5493 (mm-inlined-types nil)
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 (type (mm-handle-media-type handle))
5499 (method (mailcap-mime-info type))
5500 (mm-enable-external t))
5501 (if (not (stringp method))
5502 (gnus-mime-view-part-as-type
5503 nil (lambda (type) (stringp (mailcap-mime-info type))))
5504 (when handle
5505 (mm-display-part handle nil t)))))
5507 (defun gnus-mime-view-part-internally (&optional handle)
5508 "View the MIME part under point with an internal viewer.
5509 If no internal viewer is available, use an external viewer."
5510 (interactive)
5511 (gnus-article-check-buffer)
5512 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5513 (mm-inlined-types '(".*"))
5514 (mm-inline-large-images t)
5515 (mail-parse-charset gnus-newsgroup-charset)
5516 (mail-parse-ignored-charsets
5517 (with-current-buffer gnus-summary-buffer
5518 gnus-newsgroup-ignored-charsets))
5519 (inhibit-read-only t))
5520 (if (not (mm-inlinable-p handle))
5521 (gnus-mime-view-part-as-type
5522 nil (lambda (type) (mm-inlinable-p handle type)))
5523 (when handle
5524 (gnus-bind-safe-url-regexp
5525 (mm-display-part handle nil t))))))
5527 (defun gnus-mime-action-on-part (&optional action)
5528 "Do something with the MIME attachment at \(point\)."
5529 (interactive
5530 (list (gnus-completing-read "Action" (mapcar 'car gnus-mime-action-alist) t)))
5531 (gnus-article-check-buffer)
5532 (let ((action-pair (assoc action gnus-mime-action-alist)))
5533 (if action-pair
5534 (funcall (cdr action-pair)))))
5536 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5537 "Call FUNCTION on MIME part N.
5538 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as its only argument.
5539 If INTERACTIVE, call FUNCTION interactively."
5540 (let (window frame)
5541 ;; Check whether the article is displayed.
5542 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5543 (setq window (get-buffer-window gnus-article-buffer t))
5544 (frame-visible-p (setq frame (window-frame window))))
5545 (error "No article is displayed"))
5546 (with-current-buffer gnus-article-buffer
5547 ;; Check whether the article displays the right contents.
5548 (unless (with-current-buffer gnus-summary-buffer
5549 (eq gnus-current-article (gnus-summary-article-number)))
5550 (error "You should select the right article first"))
5551 (if n
5552 (setq n (prefix-numeric-value n))
5553 (let ((pt (point)))
5554 (setq n (or (get-text-property pt 'gnus-part)
5555 (and (not (bobp))
5556 (get-text-property (1- pt) 'gnus-part))
5557 (get-text-property (prog2
5558 (forward-line 1)
5559 (point)
5560 (goto-char pt))
5561 'gnus-part)
5562 (get-text-property
5563 (or (and (setq pt (previous-single-property-change
5564 pt 'gnus-part))
5565 (1- pt))
5566 (next-single-property-change (point) 'gnus-part)
5567 (point))
5568 'gnus-part)
5569 1))))
5570 ;; Check whether the specified part exists.
5571 (when (> n (length gnus-article-mime-handle-alist))
5572 (error "No such part")))
5573 (unless
5574 (progn
5575 ;; To select the window is needed so that the cursor
5576 ;; might be visible on the MIME button.
5577 (select-window (prog1
5578 window
5579 (setq window (selected-window))
5580 ;; Article may be displayed in the other frame.
5581 (gnus-select-frame-set-input-focus
5582 (prog1
5583 frame
5584 (setq frame (selected-frame))))))
5585 (when (gnus-article-goto-part n)
5586 ;; We point the cursor and the arrow at the MIME button
5587 ;; when the `function' prompt the user for something.
5588 (unless (and (pos-visible-in-window-p)
5589 (> (count-lines (point) (window-end))
5590 (/ (1- (window-height)) 3)))
5591 (recenter (/ (1- (window-height)) 3)))
5592 (let ((cursor-in-non-selected-windows t)
5593 (overlay-arrow-string "=>")
5594 (overlay-arrow-position (point-marker)))
5595 (unwind-protect
5596 (cond
5597 ((and no-handle interactive)
5598 (call-interactively function))
5599 (no-handle
5600 (funcall function))
5601 (interactive
5602 (call-interactively
5603 function (get-text-property (point) 'gnus-data)))
5604 (t
5605 (funcall function
5606 (get-text-property (point) 'gnus-data))))
5607 (set-marker overlay-arrow-position nil)
5608 (unless gnus-auto-select-part
5609 (gnus-select-frame-set-input-focus frame)
5610 (select-window window))))
5611 t))
5612 (if gnus-inhibit-mime-unbuttonizing
5613 ;; This is the default though the program shouldn't reach here.
5614 (error "No such part")
5615 ;; The part which doesn't have the MIME button is selected.
5616 ;; So, we display all the buttons and redo it.
5617 (let ((gnus-inhibit-mime-unbuttonizing t))
5618 (gnus-summary-show-article)
5619 (gnus-article-part-wrapper n function no-handle))))))
5621 (defun gnus-article-pipe-part (n)
5622 "Pipe MIME part N, which is the numerical prefix."
5623 (interactive "P")
5624 (gnus-article-part-wrapper n 'mm-pipe-part))
5626 (defun gnus-article-save-part (n)
5627 "Save MIME part N, which is the numerical prefix."
5628 (interactive "P")
5629 (gnus-article-part-wrapper n 'mm-save-part))
5631 (defun gnus-article-interactively-view-part (n)
5632 "View MIME part N interactively, which is the numerical prefix."
5633 (interactive "P")
5634 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5636 (defun gnus-article-copy-part (n)
5637 "Copy MIME part N, which is the numerical prefix."
5638 (interactive "P")
5639 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5641 (defun gnus-article-view-part-as-charset (n)
5642 "View MIME part N using a specified charset.
5643 N is the numerical prefix."
5644 (interactive "P")
5645 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5647 (defun gnus-article-view-part-externally (n)
5648 "View MIME part N externally, which is the numerical prefix."
5649 (interactive "P")
5650 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5652 (defun gnus-article-inline-part (n)
5653 "Inline MIME part N, which is the numerical prefix."
5654 (interactive "P")
5655 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5657 (defun gnus-article-save-part-and-strip (n)
5658 "Save MIME part N and replace it with an external body.
5659 N is the numerical prefix."
5660 (interactive "P")
5661 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5663 (defun gnus-article-replace-part (n)
5664 "Replace MIME part N with an external body.
5665 N is the numerical prefix."
5666 (interactive "P")
5667 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5669 (defun gnus-article-delete-part (n)
5670 "Delete MIME part N and add some information about the removed part.
5671 N is the numerical prefix."
5672 (interactive "P")
5673 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5675 (defun gnus-article-view-part-as-type (n)
5676 "Choose a MIME media type, and view part N as such.
5677 N is the numerical prefix."
5678 (interactive "P")
5679 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5681 (defun gnus-article-mime-match-handle-first (condition)
5682 (if condition
5683 (let (n)
5684 (dolist (ihandle gnus-article-mime-handle-alist)
5685 (if (and (cond
5686 ((functionp condition)
5687 (funcall condition (cdr ihandle)))
5688 ((eq condition 'undisplayed)
5689 (not (or (mm-handle-undisplayer (cdr ihandle))
5690 (equal (mm-handle-media-type (cdr ihandle))
5691 "multipart/alternative"))))
5692 ((eq condition 'undisplayed-alternative)
5693 (not (mm-handle-undisplayer (cdr ihandle))))
5694 (t t))
5695 (gnus-article-goto-part (car ihandle))
5696 (or (not n) (< (car ihandle) n)))
5697 (setq n (car ihandle))))
5698 (or n 1))
5699 1))
5701 (defun gnus-article-view-part (&optional n)
5702 "View MIME part N, which is the numerical prefix.
5703 If the part is already shown, hide the part. If N is nil, view
5704 all parts."
5705 (interactive "P")
5706 (with-current-buffer gnus-article-buffer
5707 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5708 gnus-article-mime-match-handle-function)))
5709 (when (> n (length gnus-article-mime-handle-alist))
5710 (error "No such part"))
5711 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5712 (when (gnus-article-goto-part n)
5713 (if (equal (car handle) "multipart/alternative")
5714 (progn
5715 (beginning-of-line) ;; Make it toggle subparts
5716 (gnus-article-press-button))
5717 (when (eq (gnus-mm-display-part handle) 'internal)
5718 (gnus-set-window-start)))))))
5720 (defsubst gnus-article-mime-total-parts ()
5721 (if (bufferp (car gnus-article-mime-handles))
5722 1 ;; single part
5723 (1- (length gnus-article-mime-handles))))
5725 (defun gnus-mm-display-part (handle)
5726 "Display HANDLE and fix MIME button."
5727 (let ((id (get-text-property (point) 'gnus-part))
5728 (point (point))
5729 (inhibit-read-only t)
5730 (window (selected-window))
5731 (mail-parse-charset gnus-newsgroup-charset)
5732 (mail-parse-ignored-charsets
5733 (if (gnus-buffer-live-p gnus-summary-buffer)
5734 (with-current-buffer gnus-summary-buffer
5735 gnus-newsgroup-ignored-charsets)
5736 nil))
5737 start retval)
5738 (unwind-protect
5739 (progn
5740 (let ((win (gnus-get-buffer-window (current-buffer) t)))
5741 (when win
5742 (select-window win)
5743 (goto-char point)))
5744 (setq start (next-single-property-change point 'gnus-data
5745 nil (point-max))
5746 point (previous-single-property-change start 'gnus-data))
5747 (if (mm-handle-displayed-p handle)
5748 ;; This will remove the part.
5749 (setq point (copy-marker point)
5750 retval (mm-display-part handle))
5751 (let ((part (or (and (mm-inlinable-p handle)
5752 (mm-inlined-p handle)
5753 t)
5754 (with-temp-buffer
5755 (gnus-bind-safe-url-regexp
5756 (setq retval (mm-display-part handle)))
5757 (unless (zerop (buffer-size))
5758 (buffer-string))))))
5759 (goto-char start)
5760 (unless (bolp)
5761 ;; This is a header button.
5762 (forward-line 1))
5763 (cond ((stringp part)
5764 (save-restriction
5765 (narrow-to-region (point)
5766 (progn
5767 (insert part)
5769 (point)))
5770 (gnus-treat-article nil id
5771 (gnus-article-mime-total-parts)
5772 (mm-handle-media-type handle))
5773 (mm-handle-set-undisplayer
5774 handle
5775 `(lambda ()
5776 (let ((inhibit-read-only t))
5777 (delete-region ,(copy-marker (point-min) t)
5778 ,(point-max-marker)))))))
5779 (part
5780 (mm-display-inline handle))))))
5781 (when (markerp point)
5782 (setq point (prog1 (marker-position point)
5783 (set-marker point nil))))
5784 (goto-char point)
5785 ;; Toggle the button appearance between `[button]...' and `[button]'.
5786 (let ((displayed-p (mm-handle-displayed-p handle)))
5787 (gnus-insert-mime-button handle id (list displayed-p))
5788 (if (featurep 'emacs)
5789 (delete-region
5790 (point)
5791 (next-single-property-change (point) 'gnus-data nil (point-max)))
5792 (let* ((end (next-single-property-change (point) 'gnus-data))
5793 (annots (annotations-at (or end (point-max)))))
5794 (delete-region (point)
5795 (if end
5796 (if annots (1+ end) end)
5797 (point-max)))
5798 (dolist (annot annots)
5799 (set-extent-endpoints annot (point) (point)))))
5800 (setq start (point))
5802 (progn
5803 (goto-char start)
5804 (unless (or displayed-p (eolp))
5805 ;; Add extra newline.
5806 (insert (propertize (buffer-substring (1- start) start)
5807 'gnus-undeletable t))))
5808 ;; We're in the article header.
5809 (delete-char -1)
5810 (dolist (ovl (gnus-overlays-in point (point)))
5811 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
5812 (gnus-overlay-put ovl 'face nil))
5813 (save-restriction
5814 (message-narrow-to-field)
5815 (let ((gnus-treatment-function-alist
5816 '((gnus-treat-highlight-headers
5817 gnus-article-highlight-headers))))
5818 (gnus-treat-article 'head)))))
5819 (goto-char point)
5820 (if (window-live-p window)
5821 (select-window window)))
5822 retval))
5824 (defun gnus-article-goto-part (n)
5825 "Go to MIME part N."
5826 (when gnus-break-pages
5827 (widen))
5828 (article-goto-body)
5829 (prog1
5830 (let ((start (or (text-property-any (point) (point-max) 'gnus-part n)
5831 ;; There may be header buttons.
5832 (text-property-any (point-min) (point) 'gnus-part n)))
5833 part handle end next handles)
5834 (when start
5835 (goto-char start)
5836 (if (setq handle (get-text-property start 'gnus-data))
5837 start
5838 ;; Go to the displayed subpart, assuming this is
5839 ;; multipart/alternative.
5840 (setq part start
5841 end (point-at-eol))
5842 (while (and (not handle)
5843 part
5844 (< part end)
5845 (setq next (text-property-not-all part end
5846 'gnus-data nil)))
5847 (setq part next
5848 handle (get-text-property part 'gnus-data))
5849 (push (cons handle part) handles)
5850 (unless (mm-handle-displayed-p handle)
5851 (setq handle nil
5852 part (text-property-any part end 'gnus-data nil))))
5853 (unless handle
5854 ;; No subpart is displayed, so we find preferred one.
5855 (setq part
5856 (cdr (assq (mm-preferred-alternative
5857 (nreverse (mapcar 'car handles)))
5858 handles))))
5859 (if part
5860 (goto-char (1+ part))
5861 start))))
5862 (when gnus-break-pages
5863 (gnus-narrow-to-page))))
5865 (defun gnus-insert-mime-button (handle id &optional displayed)
5866 (let ((gnus-tmp-name
5867 (or (mm-handle-filename handle)
5868 (mail-content-type-get (mm-handle-type handle) 'url)
5869 ""))
5870 (gnus-tmp-id id)
5871 (gnus-tmp-type (mm-handle-media-type handle))
5872 (gnus-tmp-description (or (mm-handle-description handle) ""))
5873 (gnus-tmp-dots
5874 (if (if displayed (car displayed)
5875 (mm-handle-displayed-p handle))
5876 "" "..."))
5877 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5878 (buffer-size)))
5879 gnus-tmp-type-long b e)
5880 (when (string-match ".*/" gnus-tmp-name)
5881 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5882 (setq gnus-tmp-type-long (concat gnus-tmp-type
5883 (and (not (equal gnus-tmp-name ""))
5884 (concat "; " gnus-tmp-name))))
5885 (unless (equal gnus-tmp-description "")
5886 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5887 (setq b (point))
5888 (gnus-eval-format
5889 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5890 `(keymap ,gnus-mime-button-map
5891 gnus-callback gnus-mm-display-part
5892 gnus-part ,gnus-tmp-id
5893 article-type annotation
5894 gnus-data ,handle
5895 rear-nonsticky t))
5896 (setq e (if (bolp)
5897 ;; Exclude a newline.
5898 (1- (point))
5899 (point)))
5900 (when gnus-article-button-face
5901 (gnus-overlay-put (gnus-make-overlay b e nil t)
5902 'face gnus-article-button-face))
5903 (widget-convert-button
5904 'link b e
5905 :mime-handle handle
5906 :action 'gnus-widget-press-button
5907 :button-keymap gnus-mime-button-map
5908 :help-echo
5909 (lambda (widget)
5910 ;; Needed to properly clear the message due to a bug in
5911 ;; wid-edit (XEmacs only).
5912 (if (boundp 'help-echo-owns-message)
5913 (setq help-echo-owns-message t))
5914 (format
5915 "%S: %s the MIME part; %S: more options"
5916 (aref gnus-mouse-2 0)
5917 (if (mm-handle-displayed-p (widget-get widget :mime-handle))
5918 "hide" "show")
5919 (aref gnus-down-mouse-3 0))))))
5921 (defun gnus-widget-press-button (elems _el)
5922 (goto-char (widget-get elems :from))
5923 (gnus-article-press-button))
5925 (defvar gnus-displaying-mime nil)
5927 (defun gnus-display-mime (&optional ihandles)
5928 "Display the MIME parts."
5929 (save-excursion
5930 (save-selected-window
5931 (let ((window (get-buffer-window gnus-article-buffer))
5932 (point (point)))
5933 (when window
5934 (select-window window)
5935 ;; We have to do this since selecting the window
5936 ;; may change the point. So we set the window point.
5937 (set-window-point window point)))
5938 (let ((handles ihandles)
5939 (inhibit-read-only t))
5940 (cond (handles)
5941 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5942 (when gnus-article-emulate-mime
5943 (mm-uu-dissect-text-parts handles)))
5944 (gnus-article-emulate-mime
5945 (setq handles (mm-uu-dissect))))
5946 (when (and (not ihandles)
5947 (not gnus-displaying-mime))
5948 ;; Top-level call; we clean up.
5949 (when gnus-article-mime-handles
5950 (mm-destroy-parts gnus-article-mime-handles)
5951 (setq gnus-article-mime-handle-alist nil));; A trick.
5952 (setq gnus-article-mime-handles handles)
5953 ;; We allow users to glean info from the handles.
5954 (when gnus-article-mime-part-function
5955 (gnus-mime-part-function handles)))
5956 (if (and handles
5957 (or (not (stringp (car handles)))
5958 (cdr handles)))
5959 (progn
5960 (when (and (not ihandles)
5961 (not gnus-displaying-mime))
5962 ;; Clean up for mime parts.
5963 (article-goto-body)
5964 (delete-region (point) (point-max)))
5965 (let ((gnus-displaying-mime t))
5966 (gnus-mime-display-part handles)))
5967 (save-restriction
5968 (article-goto-body)
5969 (narrow-to-region (point) (point-max))
5970 (gnus-treat-article nil 1 1 "text/plain")
5971 (widen)))
5972 (unless ihandles
5973 ;; Highlight the headers.
5974 (save-excursion
5975 (save-restriction
5976 (article-goto-body)
5977 (narrow-to-region (point-min) (point))
5978 (gnus-article-save-original-date
5979 (gnus-treat-article 'head)))))))
5980 ;; Cope with broken MIME messages.
5981 (goto-char (point-max))
5982 (unless (bolp)
5985 (defcustom gnus-mime-display-multipart-as-mixed nil
5988 If t, it overrides nil values of
5989 `gnus-mime-display-multipart-alternative-as-mixed' and
5990 `gnus-mime-display-multipart-related-as-mixed'."
5991 :group 'gnus-article-mime
5992 :type 'boolean)
5994 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5996 :version "22.1"
5997 :group 'gnus-article-mime
5998 :type 'boolean)
6000 (defcustom gnus-mime-display-multipart-related-as-mixed nil
6004 `mm-discouraged-alternatives'\) images or other material inside a
6006 :version "22.1"
6007 :group 'gnus-article-mime
6008 :type 'boolean)
6010 (defcustom gnus-mime-display-attachment-buttons-in-header t
6011 "Add attachment buttons in the end of the header of an article.
6012 Since MIME attachments tend to be put at the end of an article, we may
6013 overlook them if there is a huge body. This option offers you a copy
6014 of all non-inlinable MIME parts as buttons shown in front of an article.
6015 If nil, don't show those extra buttons."
6016 :version "25.1"
6017 :group 'gnus-article-mime
6018 :type 'boolean)
6020 (defun gnus-mime-display-part (handle)
6021 (cond
6022 ;; Maybe a broken MIME message.
6023 ((null handle))
6024 ;; Single part.
6025 ((not (stringp (car handle)))
6026 (gnus-mime-display-single handle))
6027 ;; User-defined multipart
6028 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
6029 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
6030 handle))
6031 ;; multipart/alternative
6032 ((and (equal (car handle) "multipart/alternative")
6033 (not (or gnus-mime-display-multipart-as-mixed
6034 gnus-mime-display-multipart-alternative-as-mixed)))
6035 (let ((id (1+ (length gnus-article-mime-handle-alist))))
6036 (push (cons id handle) gnus-article-mime-handle-alist)
6037 (gnus-mime-display-alternative (cdr handle) nil nil id)))
6038 ;; multipart/related
6039 ((and (equal (car handle) "multipart/related")
6040 (not (or gnus-mime-display-multipart-as-mixed
6041 gnus-mime-display-multipart-related-as-mixed)))
6042 (gnus-mime-display-part (cadr handle)))
6043 ((equal (car handle) "multipart/signed")
6044 (gnus-add-wash-type 'signed)
6045 (gnus-mime-display-security handle))
6046 ((equal (car handle) "multipart/encrypted")
6047 (gnus-add-wash-type 'encrypted)
6048 (gnus-mime-display-security handle))
6049 ;; Other multiparts are handled like multipart/mixed.
6050 (t
6051 (gnus-mime-display-mixed (cdr handle)))))
6053 (defun gnus-mime-part-function (handles)
6054 (if (stringp (car handles))
6055 (mapcar 'gnus-mime-part-function (cdr handles))
6056 (funcall gnus-article-mime-part-function handles)))
6058 (defun gnus-mime-display-mixed (handles)
6059 (mapcar 'gnus-mime-display-part handles))
6061 (defun gnus-mime-display-single (handle)
6062 (let ((type (mm-handle-media-type handle))
6063 (ignored gnus-ignored-mime-types)
6064 (not-attachment t)
6065 display text)
6066 (catch 'ignored
6067 (progn
6068 (while ignored
6069 (when (string-match (pop ignored) type)
6070 (throw 'ignored nil)))
6071 (if (and (not (and (if (gnus-buffer-live-p gnus-summary-buffer)
6072 (with-current-buffer gnus-summary-buffer
6073 gnus-inhibit-images)
6074 gnus-inhibit-images)
6076 (setq not-attachment
6077 (and (not (mm-inline-override-p handle))
6078 (or (not (mm-handle-disposition handle))
6079 (equal (car (mm-handle-disposition handle))
6080 "inline")
6081 (mm-attachment-override-p handle))))
6082 (mm-automatic-display-p handle)
6083 (or (and
6084 (mm-inlinable-p handle)
6085 (mm-inlined-p handle))
6086 (mm-automatic-external-display-p type)))
6087 (setq display t)
6088 (when (equal (mm-handle-media-supertype handle) "text")
6089 (setq text t)))
6090 (let ((id (car (rassq handle gnus-article-mime-handle-alist)))
6091 beg)
6092 (unless id
6093 (setq id (1+ (length gnus-article-mime-handle-alist)))
6094 (push (cons id handle) gnus-article-mime-handle-alist))
6095 (when (and display
6096 (equal (mm-handle-media-supertype handle) "message"))
6097 (insert-char
6099 (cond ((not (bolp)) 2)
6101 (t 1))))
6102 (when (or (not display)
6103 (not (gnus-unbuttonized-mime-type-p type))
6104 (eq id gnus-mime-buttonized-part-id))
6105 (gnus-insert-mime-button
6106 handle id (list (or display (and not-attachment text)))))
6107 (setq beg (point))
6108 (cond
6109 (display
6110 (let ((mail-parse-charset gnus-newsgroup-charset)
6111 (mail-parse-ignored-charsets
6112 (save-excursion (condition-case ()
6113 (set-buffer gnus-summary-buffer)
6114 (error))
6115 gnus-newsgroup-ignored-charsets)))
6116 (gnus-bind-safe-url-regexp (mm-display-part handle t))))
6117 ((and text not-attachment)
6118 (mm-display-inline handle)))
6119 (goto-char (point-max))
6121 (gnus-article-insert-newline)
6122 (if (prog1
6124 (unless (eobp) (forward-char 1)))
6125 (gnus-article-insert-newline)
6126 (put-text-property (point) (point-max) 'gnus-undeletable t))
6127 (goto-char (point-max)))
6128 ;; Do highlighting.
6129 (save-excursion
6130 (save-restriction
6131 (narrow-to-region beg (point))
6132 (if (eq handle gnus-article-mime-handles)
6133 ;; The format=flowed case.
6134 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
6135 ;; Don't count signature parts that are never displayed.
6136 ;; The part number should be re-calculated supposing this
6137 ;; might be a message/rfc822 part.
6138 (let (handles)
6139 (dolist (part gnus-article-mime-handles)
6140 (unless (or (stringp part)
6141 (equal (car (mm-handle-type part))
6142 "application/pgp-signature"))
6143 (push part handles)))
6144 (gnus-treat-article
6145 nil (length (memq handle handles)) (length handles)
6146 (mm-handle-media-type handle)))))))))))
6148 (defun gnus-unbuttonized-mime-type-p (type)
6149 "Say whether TYPE is to be unbuttonized."
6150 (unless gnus-inhibit-mime-unbuttonizing
6151 (when (catch 'found
6152 (let ((types gnus-unbuttonized-mime-types))
6153 (while types
6154 (when (string-match (pop types) type)
6155 (throw 'found t)))))
6156 (not (catch 'found
6157 (let ((types gnus-buttonized-mime-types))
6158 (while types
6159 (when (string-match (pop types) type)
6160 (throw 'found t)))))))))
6162 (defun gnus-article-insert-newline ()
6163 "Insert a newline, but mark it as undeletable."
6164 (gnus-put-text-property
6167 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
6168 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
6169 (ihandles handles)
6170 (point (point))
6171 handle (inhibit-read-only t) from begend not-pref)
6172 (save-window-excursion
6173 (save-restriction
6174 (when ibegend
6175 (narrow-to-region (car ibegend)
6176 (or (cdr ibegend)
6177 (progn
6178 (goto-char (car ibegend))
6179 (forward-line 2)
6180 (point))))
6181 (delete-region (point-min) (point-max))
6182 (mm-remove-parts handles))
6183 (setq begend (list (point-marker)))
6184 ;; Do the toggle.
6185 (unless (setq not-pref (cadr (member preferred ihandles)))
6186 (setq not-pref (car ihandles)))
6187 (when (or ibegend
6188 (not preferred)
6189 (not (gnus-unbuttonized-mime-type-p
6190 "multipart/alternative")))
6191 (gnus-add-text-properties
6192 (setq from (point))
6193 (progn
6194 (insert (format "%d. " id))
6195 (point))
6196 `(gnus-callback
6197 (lambda (handles)
6198 (unless ,(not ibegend)
6199 (setq gnus-article-mime-handle-alist
6200 ',gnus-article-mime-handle-alist))
6201 (gnus-mime-display-alternative
6202 ',ihandles ',not-pref ',begend ,id))
6203 keymap ,gnus-mime-button-map
6204 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6205 face ,gnus-article-button-face
6206 gnus-part ,id
6207 article-type multipart
6208 rear-nonsticky t))
6209 (widget-convert-button 'link from (point)
6210 :action 'gnus-widget-press-button
6211 :button-keymap gnus-widget-button-keymap)
6212 ;; Do the handles
6213 (while (setq handle (pop handles))
6214 (gnus-add-text-properties
6215 (setq from (point))
6216 (progn
6217 (insert (format "(%c) %-18s"
6218 (if (equal handle preferred) ?* ? )
6219 (mm-handle-media-type handle)))
6220 (point))
6221 `(gnus-callback
6222 (lambda (handles)
6223 (unless ,(not ibegend)
6224 (setq gnus-article-mime-handle-alist
6225 ',gnus-article-mime-handle-alist))
6226 (gnus-mime-display-alternative
6227 ',ihandles ',handle ',begend ,id))
6228 keymap ,gnus-mime-button-map
6229 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6230 face ,gnus-article-button-face
6231 gnus-part ,id
6232 gnus-data ,handle
6233 rear-nonsticky t))
6234 (widget-convert-button 'link from (point)
6235 :action 'gnus-widget-press-button
6236 :button-keymap gnus-widget-button-keymap)
6237 (insert " "))
6239 (when preferred
6240 (if (stringp (car preferred))
6241 (gnus-display-mime preferred)
6242 (let ((mail-parse-charset gnus-newsgroup-charset)
6243 (mail-parse-ignored-charsets
6244 (with-current-buffer gnus-summary-buffer
6245 gnus-newsgroup-ignored-charsets)))
6246 (gnus-bind-safe-url-regexp (mm-display-part preferred))
6247 ;; Do highlighting.
6248 (save-excursion
6249 (save-restriction
6250 (narrow-to-region (car begend) (point-max))
6251 (gnus-treat-article
6252 nil (length gnus-article-mime-handle-alist)
6253 (gnus-article-mime-total-parts)
6254 (mm-handle-media-type preferred))))))
6255 (goto-char (point-max))
6256 (setcdr begend (point-marker)))))
6257 (when ibegend
6258 (goto-char point)))
6259 ;; Redraw attachment buttons in the header.
6260 (when gnus-mime-display-attachment-buttons-in-header
6261 (gnus-mime-buttonize-attachments-in-header)))
6263 (defconst gnus-article-wash-status-strings
6264 (let ((alist '((cite "c" "Possible hidden citation text"
6265 " " "All citation text visible")
6266 (headers "h" "Hidden headers"
6267 " " "All headers visible.")
6268 (pgp "p" "Encrypted or signed message status hidden"
6269 " " "No hidden encryption nor digital signature status")
6270 (signature "s" "Signature has been hidden"
6271 " " "Signature is visible")
6272 (overstrike "o" "Overstrike (^H) characters applied"
6273 " " "No overstrike characters applied")
6274 (emphasis "e" "/*_Emphasis_*/ characters applied"
6275 " " "No /*_emphasis_*/ characters applied")))
6276 result)
6277 (dolist (entry alist result)
6278 (let ((key (nth 0 entry))
6279 (on (copy-sequence (nth 1 entry)))
6280 (on-help (nth 2 entry))
6281 (off (copy-sequence (nth 3 entry)))
6282 (off-help (nth 4 entry)))
6283 (put-text-property 0 1 'help-echo on-help on)
6284 (put-text-property 0 1 'help-echo off-help off)
6285 (push (list key on off) result))))
6286 "Alist of strings describing wash status in the mode line.
6287 Each entry has the form (KEY ON OF), where the KEY is a symbol
6288 representing the particular washing function, ON is the string to use
6289 in the article mode line when the washing function is active, and OFF
6290 is the string to use when it is inactive.")
6292 (defun gnus-article-wash-status-entry (key value)
6293 (let ((entry (assoc key gnus-article-wash-status-strings)))
6294 (if value (nth 1 entry) (nth 2 entry))))
6296 (defun gnus-article-wash-status ()
6297 "Return a string which display status of article washing."
6298 (with-current-buffer gnus-article-buffer
6299 (let ((cite (memq 'cite gnus-article-wash-types))
6300 (headers (memq 'headers gnus-article-wash-types))
6301 (boring (memq 'boring-headers gnus-article-wash-types))
6302 (pgp (memq 'pgp gnus-article-wash-types))
6303 (pem (memq 'pem gnus-article-wash-types))
6304 (signed (memq 'signed gnus-article-wash-types))
6305 (encrypted (memq 'encrypted gnus-article-wash-types))
6306 (signature (memq 'signature gnus-article-wash-types))
6307 (overstrike (memq 'overstrike gnus-article-wash-types))
6308 (emphasis (memq 'emphasis gnus-article-wash-types)))
6309 (concat
6310 (gnus-article-wash-status-entry 'cite cite)
6311 (gnus-article-wash-status-entry 'headers (or headers boring))
6312 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
6313 (gnus-article-wash-status-entry 'signature signature)
6314 (gnus-article-wash-status-entry 'overstrike overstrike)
6315 (gnus-article-wash-status-entry 'emphasis emphasis)))))
6317 (defun gnus-add-wash-type (type)
6318 "Add a washing of TYPE to the current status."
6319 (add-to-list 'gnus-article-wash-types type))
6321 (defun gnus-delete-wash-type (type)
6322 "Add a washing of TYPE to the current status."
6323 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
6325 (defun gnus-add-image (category image)
6326 "Add IMAGE of CATEGORY to the list of displayed images."
6327 (let ((entry (assq category gnus-article-image-alist)))
6328 (unless entry
6329 (setq entry (list category))
6330 (push entry gnus-article-image-alist))
6331 (nconc entry (list image))))
6333 (defun gnus-delete-images (category)
6334 "Delete all images in CATEGORY."
6335 (let ((entry (assq category gnus-article-image-alist)))
6336 (dolist (image (cdr entry))
6337 (gnus-remove-image image category))
6338 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
6339 (gnus-delete-wash-type category)))
6341 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6343 (defun gnus-article-maybe-hide-headers ()
6344 "Hide unwanted headers if `gnus-have-all-headers' is nil.
6345 Provided for backwards compatibility."
6346 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
6347 (not (with-current-buffer gnus-summary-buffer
6348 gnus-have-all-headers)))
6349 (not gnus-inhibit-hiding))
6350 (gnus-article-hide-headers)))
6352 (declare-function shr-put-image "shr" (data alt &optional flags))
6354 (defun gnus-shr-put-image (data alt &optional flags)
6355 "Put image DATA with a string ALT. Enable image to be deleted."
6356 (let ((image (if flags
6357 (shr-put-image data (propertize (or alt "*")
6358 'gnus-image-category 'shr)
6359 flags)
6360 ;; Old `shr-put-image' doesn't take the optional `flags'
6361 ;; argument.
6362 (shr-put-image data (propertize (or alt "*")
6363 'gnus-image-category 'shr)))))
6364 (when image
6365 (gnus-add-image 'shr image))))
6367 (defun gnus-article-mime-handles (&optional alist id all)
6368 (if alist
6369 (let ((i 1) newid flat)
6370 (dolist (handle alist flat)
6371 (setq newid (append id (list i))
6372 i (1+ i))
6373 (if (stringp (car handle))
6374 (setq flat (nconc flat (gnus-article-mime-handles
6375 (cdr handle) newid all)))
6376 (delq (rassq handle all) all)
6377 (setq flat (nconc flat (list (cons newid handle)))))))
6378 (let ((flat (list nil)))
6379 ;; Assume that elements of `gnus-article-mime-handle-alist'
6380 ;; are in the decreasing order, but unnumbered subsidiaries
6381 ;; in each element are in the increasing order.
6382 (dolist (handle (reverse gnus-article-mime-handle-alist))
6383 (if (stringp (cadr handle))
6384 (setq flat (nconc flat (gnus-article-mime-handles
6385 (cddr handle) (list (car handle)) flat)))
6386 (delq (rassq (cdr handle) flat) flat)
6387 (setq flat (nconc flat (list (cons (list (car handle))
6388 (cdr handle)))))))
6389 (setq flat (cdr flat))
6390 (mapc (lambda (handle)
6391 (if (cdar handle)
6392 ;; This is a hidden (i.e. unnumbered) handle.
6393 (progn
6394 (setcar handle
6395 (1+ (caar gnus-article-mime-handle-alist)))
6396 (push handle gnus-article-mime-handle-alist))
6397 (setcar handle (caar handle))))
6398 flat)
6399 flat)))
6401 (defun gnus-mime-buttonize-attachments-in-header (&optional interactive)
6402 "Show attachments as buttons in the end of the header of an article.
6403 This function toggles the display when called interactively. Note that
6404 buttons to be added to the header are only the ones that aren't inlined
6405 in the body. Use `gnus-header-face-alist' to highlight buttons."
6406 (interactive (list t))
6407 (gnus-with-article-buffer
6408 (let ((case-fold-search t) buttons handle type st)
6409 (save-excursion
6410 (save-restriction
6411 (widen)
6412 (article-narrow-to-head)
6413 ;; Header buttons exist?
6414 (while (and (not buttons)
6416 (when (get-char-property (match-end 0)
6417 'gnus-button-attachment-extra)
6418 (setq buttons (match-beginning 0))))
6419 (widen)
6420 (when buttons
6421 ;; Delete header buttons.
6422 (delete-region buttons (if (re-search-forward "^[^ ]" nil t)
6423 (match-beginning 0)
6424 (point-max))))
6425 (unless (and interactive buttons)
6426 ;; Find buttons.
6427 (setq buttons nil)
6428 (dolist (button (gnus-article-mime-handles))
6429 (setq handle (cdr button)
6430 type (mm-handle-media-type handle))
6431 (when (or (and (if (gnus-buffer-live-p gnus-summary-buffer)
6432 (with-current-buffer gnus-summary-buffer
6433 gnus-inhibit-images)
6434 gnus-inhibit-images)
6436 (mm-inline-override-p handle)
6437 (and (mm-handle-disposition handle)
6438 (not (equal (car (mm-handle-disposition handle))
6439 "inline"))
6440 (not (mm-attachment-override-p handle)))
6441 (not (mm-automatic-display-p handle))
6442 (not (or (and (mm-inlinable-p handle)
6443 (mm-inlined-p handle))
6444 (mm-automatic-external-display-p type))))
6445 (push button buttons)))
6446 (when buttons
6447 ;; Add header buttons.
6448 (article-goto-body)
6449 (forward-line -1)
6450 (narrow-to-region (point) (point))
6451 (insert "Attachment" (if (cdr buttons) "s" "") ":")
6452 (dolist (button (nreverse buttons))
6453 (setq st (point))
6454 (insert " ")
6455 (mm-handle-set-undisplayer (setq handle (cdr button)) nil)
6456 (gnus-insert-mime-button handle (car button))
6458 (delete-region (point) (point-max))
6459 (when (> (current-column) (window-width))
6460 (goto-char st)
6462 (end-of-line)))
6464 (dolist (ovl (gnus-overlays-in (point-min) (point)))
6465 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
6466 (gnus-overlay-put ovl 'face nil))
6467 (let ((gnus-treatment-function-alist
6468 '((gnus-treat-highlight-headers
6469 gnus-article-highlight-headers))))
6470 (gnus-treat-article 'head)))))))))
6472 ;;; Article savers.
6474 (defun gnus-output-to-file (file-name)
6475 "Append the current article to a file named FILE-NAME.
6476 If `gnus-article-save-coding-system' is non-nil, it is used to encode
6477 text and used as the value of the coding cookie which is added to the
6478 top of a file. Otherwise, this function saves a raw article without
6479 the coding cookie."
6480 (let* ((artbuf (current-buffer))
6481 (file-name-coding-system nnmail-pathname-coding-system)
6482 (coding gnus-article-save-coding-system)
6483 (coding-system-for-read (if coding
6484 nil ;; Rely on the coding cookie.
6485 mm-text-coding-system))
6486 (coding-system-for-write (or coding
6487 mm-text-coding-system-for-write
6488 mm-text-coding-system))
6489 (exists (file-exists-p file-name)))
6490 (with-temp-buffer
6491 (when exists
6492 (insert-file-contents file-name)
6493 (goto-char (point-min))
6494 ;; Remove the existing coding cookie.
6496 (delete-region (match-beginning 0) (match-end 0))))
6497 (goto-char (point-max))
6498 (insert-buffer-substring artbuf)
6499 ;; Append newline at end of the buffer as separator, and then
6500 ;; save it to file.
6501 (goto-char (point-max))
6503 (when coding
6504 ;; If the coding system is not suitable to encode the text,
6505 ;; ask a user for a proper one.
6506 (when (fboundp 'select-safe-coding-system)
6507 (setq coding (coding-system-base
6508 (save-window-excursion
6509 (select-safe-coding-system (point-min) (point-max)
6510 coding))))
6511 (setq coding-system-for-write
6512 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
6513 coding)))
6514 (goto-char (point-min))
6515 ;; Add the coding cookie.
6517 coding-system-for-write)))
6518 (if exists
6519 (progn
6520 (write-region (point-min) (point-max) file-name nil 'no-message)
6521 (message "Appended to %s" file-name))
6522 (write-region (point-min) (point-max) file-name))))
6523 t)
6525 (defun gnus-narrow-to-page (&optional arg)
6526 "Narrow the article buffer to a page.
6527 If given a numerical ARG, move forward ARG pages."
6528 (interactive "P")
6529 (setq arg (if arg (prefix-numeric-value arg) 0))
6530 (with-current-buffer gnus-article-buffer
6531 (widen)
6532 ;; Remove any old next/prev buttons.
6533 (when (gnus-visual-p 'page-marker)
6534 (let ((inhibit-read-only t))
6535 (gnus-remove-text-with-property 'gnus-prev)
6536 (gnus-remove-text-with-property 'gnus-next)))
6537 (let (st nd pt)
6538 (when (save-excursion
6539 (cond ((< arg 0)
6540 (if (re-search-backward page-delimiter nil 'move (abs arg))
6541 (prog1
6542 (setq nd (match-beginning 0)
6543 pt nd)
6544 (when (re-search-backward page-delimiter nil t)
6545 (setq st (match-end 0))))
6546 (when (re-search-forward page-delimiter nil t)
6547 (setq nd (match-beginning 0)
6548 pt (point-min)))))
6549 ((> arg 0)
6550 (if (re-search-forward page-delimiter nil 'move arg)
6551 (prog1
6552 (setq st (match-end 0)
6553 pt st)
6554 (when (re-search-forward page-delimiter nil t)
6555 (setq nd (match-beginning 0))))
6556 (when (re-search-backward page-delimiter nil t)
6557 (setq st (match-end 0)
6558 pt (point-max)))))
6559 (t
6560 (when (re-search-backward page-delimiter nil t)
6561 (goto-char (setq st (match-end 0))))
6562 (when (re-search-forward page-delimiter nil t)
6563 (setq nd (match-beginning 0)))
6564 (or st nd))))
6565 (setq gnus-page-broken t)
6566 (when pt (goto-char pt))
6567 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6568 (when (gnus-visual-p 'page-marker)
6569 (save-excursion
6570 (when nd
6571 (goto-char nd)
6572 (gnus-insert-next-page-button))
6573 (when st
6574 (goto-char st)
6575 (gnus-insert-prev-page-button))))))))
6577 ;; Article mode commands
6579 (defun gnus-article-goto-next-page ()
6580 "Show the next page of the article."
6581 (interactive)
6582 (when (gnus-article-next-page)
6583 (goto-char (point-min))
6584 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
6587 (defun gnus-article-goto-prev-page ()
6588 "Show the previous page of the article."
6589 (interactive)
6590 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6591 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
6592 (gnus-article-prev-page nil)))
6594 ;; This is cleaner but currently breaks `gnus-pick-mode':
6595 ;;
6596 ;; (defun gnus-article-goto-next-page ()
6597 ;; "Show the next page of the article."
6598 ;; (interactive)
6599 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6600 ;; (gnus-summary-next-page)))
6601 ;;
6602 ;; (defun gnus-article-goto-prev-page ()
6603 ;; "Show the next page of the article."
6604 ;; (interactive)
6605 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6606 ;; (gnus-summary-prev-page)))
6608 (defun gnus-article-next-page (&optional lines)
6609 "Show the next page of the current article.
6610 If end of article, return non-nil. Otherwise return nil.
6611 Argument LINES specifies lines to be scrolled up."
6612 (interactive "p")
6613 (move-to-window-line (if (featurep 'xemacs) -1 (- -1 scroll-margin)))
6614 (if (and (not (and gnus-article-over-scroll
6615 (> (count-lines (window-start) (point-max))
6616 (if (featurep 'xemacs)
6617 (or lines (1- (window-height)))
6618 (+ (or lines (1- (window-height))) scroll-margin)))))
6619 (save-excursion
6620 (end-of-line)
6621 (and (pos-visible-in-window-p) ;Not continuation line.
6622 (>= (point) (point-max)))))
6623 ;; Nothing in this page.
6624 (if (or (not gnus-page-broken)
6625 (save-excursion
6626 (save-restriction
6627 (widen)
6628 (forward-line)
6629 (eobp)))) ;Real end-of-buffer?
6630 (progn
6631 (when gnus-article-over-scroll
6632 (gnus-article-next-page-1 lines))
6633 t) ;Nothing more.
6634 (gnus-narrow-to-page 1) ;Go to next page.
6635 nil)
6636 ;; More in this page.
6637 (gnus-article-next-page-1 lines)
6638 nil))
6640 (defun gnus-article-beginning-of-window ()
6641 "Move point to the beginning of the window.
6642 In Emacs, the point is placed at the line number which `scroll-margin'
6643 specifies."
6644 (if (featurep 'xemacs)
6645 (move-to-window-line 0)
6646 ;; There is an obscure bug in Emacs that makes it impossible to
6647 ;; scroll past big pictures in the article buffer. Try to fix
6648 ;; this by adding a sanity check by counting the lines visible.
6649 (when (> (count-lines (window-start) (window-end)) 30)
6650 (move-to-window-line
6651 (min (max 0 scroll-margin)
6652 (max 1 (- (window-height)
6653 (if mode-line-format 1 0)
6654 (if header-line-format 1 0)
6655 2)))))))
6657 (defvar scroll-in-place)
6659 (defun gnus-article-next-page-1 (lines)
6660 (condition-case ()
6661 (let ((scroll-in-place nil)
6662 (auto-window-vscroll nil))
6663 (scroll-up lines))
6664 (end-of-buffer
6665 ;; Long lines may cause an end-of-buffer error.
6666 (goto-char (point-max))))
6667 (gnus-article-beginning-of-window))
6669 (defun gnus-article-prev-page (&optional lines)
6670 "Show previous page of current article.
6671 Argument LINES specifies lines to be scrolled down."
6672 (interactive "p")
6673 (move-to-window-line 0)
6674 (if (and gnus-page-broken
6675 (bobp)
6676 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6677 (progn
6678 (gnus-narrow-to-page -1) ;Go to previous page.
6679 (goto-char (point-max))
6680 (recenter (if gnus-article-over-scroll
6681 (if lines
6682 (max (if (featurep 'xemacs)
6683 lines
6684 (+ lines scroll-margin))
6685 3)
6686 (- (window-height) 2))
6687 -1)))
6688 (prog1
6689 (condition-case ()
6690 (let ((scroll-in-place nil))
6691 (scroll-down lines))
6692 (beginning-of-buffer
6693 (goto-char (point-min))))
6694 (gnus-article-beginning-of-window))))
6696 (defun gnus-article-only-boring-p ()
6697 "Decide whether there is only boring text remaining in the article.
6699 not have a face in `gnus-article-boring-faces'."
6700 (when (and gnus-article-skip-boring
6701 (boundp 'gnus-article-boring-faces)
6702 (symbol-value 'gnus-article-boring-faces))
6703 (save-excursion
6704 (let ((inhibit-point-motion-hooks t))
6705 (catch 'only-boring
6707 (forward-char -1)
6708 (when (not (gnus-intersection
6709 (gnus-faces-at (point))
6710 (symbol-value 'gnus-article-boring-faces)))
6711 (throw 'only-boring nil)))
6712 (throw 'only-boring t))))))
6714 (defun gnus-article-refer-article ()
6715 "Read article specified by message-id around point."
6716 (interactive)
6717 (save-excursion
6721 (let ((msg-id (concat "<" (match-string 0) ">")))
6722 (set-buffer gnus-summary-buffer)
6723 (gnus-summary-refer-article msg-id))
6724 (error "No references around point"))))
6726 (defun gnus-article-show-summary ()
6727 "Reconfigure windows to show summary buffer."
6728 (interactive)
6729 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6730 (error "There is no summary buffer for this article buffer")
6731 (gnus-article-set-globals)
6732 (gnus-configure-windows 'article)
6733 (gnus-summary-goto-subject gnus-current-article)
6734 (gnus-summary-position-point)))
6736 (defun gnus-article-describe-briefly ()
6737 "Describe article mode commands briefly."
6738 (interactive)
6739 (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")))
6741 (defun gnus-article-check-buffer ()
6742 "Beep if not in an article buffer."
6743 (unless (derived-mode-p 'gnus-article-mode)
6744 (error "Command invoked outside of a Gnus article buffer")))
6746 (defvar gnus-pick-mode)
6748 (defun gnus-article-read-summary-keys (&optional _arg key not-restore-window)
6749 "Read a summary buffer key sequence and execute it from the article buffer."
6750 (interactive "P")
6751 (gnus-article-check-buffer)
6752 (let ((nosaves
6753 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6754 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6755 "=" "^" "\M-^" "|"))
6756 (nosave-but-article
6758 "An" "Ap" [?A (meta return)] [?A delete]))
6759 (nosave-in-article
6760 '("AS" "\C-d"))
6761 keys new-sum-point)
6762 (with-current-buffer gnus-article-current-summary
6763 (let (gnus-pick-mode)
6764 (setq unread-command-events (nconc unread-command-events
6765 (list (or key last-command-event)))
6766 keys (if (featurep 'xemacs)
6767 (events-to-keys (read-key-sequence nil t))
6768 (read-key-sequence nil t)))))
6770 (message "")
6772 (cond
6773 ((eq (aref keys (1- (length keys))) ?\C-h)
6774 (gnus-article-describe-bindings (substring keys 0 -1)))
6775 ((or (member keys nosaves)
6776 (member keys nosave-but-article)
6777 (member keys nosave-in-article))
6778 (let (func)
6779 (save-window-excursion
6780 (pop-to-buffer gnus-article-current-summary)
6781 ;; We disable the pick minor mode commands.
6782 (let (gnus-pick-mode)
6783 (setq func (key-binding keys t))))
6784 (if (or (not func)
6785 (numberp func))
6786 (ding)
6787 (unless (member keys nosave-in-article)
6788 (set-buffer gnus-article-current-summary))
6789 (when (and (symbolp func)
6790 (get func 'disabled))
6791 (error "Function %s disabled" func))
6792 (call-interactively func)
6793 (setq new-sum-point (point)))
6794 (when (member keys nosave-but-article)
6795 (pop-to-buffer gnus-article-buffer))))
6796 (t
6797 ;; These commands should restore window configuration.
6798 (let ((obuf (current-buffer))
6799 (owin (current-window-configuration))
6800 win func in-buffer selected new-sum-start new-sum-hscroll err)
6801 (cond (not-restore-window
6802 (pop-to-buffer gnus-article-current-summary)
6803 (setq win (selected-window)))
6804 ((setq win (get-buffer-window gnus-article-current-summary))
6805 (select-window win))
6806 (t
6807 (let ((summary-buffer gnus-article-current-summary))
6808 (gnus-configure-windows 'article)
6809 (unless (setq win (get-buffer-window summary-buffer 'visible))
6810 (let ((gnus-buffer-configuration
6811 '((article ((vertical 1.0
6812 (summary 0.25 point)
6813 (article 1.0)))))))
6814 (gnus-configure-windows 'article))
6815 (setq win (get-buffer-window summary-buffer 'visible)))
6816 (gnus-select-frame-set-input-focus (window-frame win))
6817 (select-window win))))
6818 (setq in-buffer (current-buffer))
6819 ;; We disable the pick minor mode commands.
6820 (setq func (let (gnus-pick-mode)
6821 (key-binding keys t)))
6822 (when (get func 'disabled)
6823 (error "Function %s disabled" func))
6824 (if (and func
6825 (functionp func)
6826 (condition-case code
6827 (progn
6828 (call-interactively func)
6829 t)
6830 (error
6831 (setq err code)
6832 nil)))
6833 (progn
6834 (when (eq win (selected-window))
6835 (setq new-sum-point (point)
6836 new-sum-start (window-start win)
6837 new-sum-hscroll (window-hscroll win)))
6838 (when (or (eq in-buffer (current-buffer))
6839 (when (eq obuf (current-buffer))
6840 (set-buffer in-buffer)
6841 t))
6842 (setq selected (ignore-errors (gnus-summary-select-article)))
6843 (set-buffer obuf)
6844 (unless not-restore-window
6845 (set-window-configuration owin))
6846 (when (and (eq selected 'old)
6847 new-sum-point)
6848 (set-window-start (get-buffer-window (current-buffer))
6849 1)
6850 (set-window-point (get-buffer-window (current-buffer))
6851 (if (article-goto-body)
6852 (1- (point))
6853 (point))))
6854 (when (and (not not-restore-window)
6855 new-sum-point
6856 (window-live-p win)
6857 (with-current-buffer (window-buffer win)
6858 (derived-mode-p 'gnus-summary-mode)))
6859 (set-window-point win new-sum-point)
6860 (set-window-start win new-sum-start)
6861 (set-window-hscroll win new-sum-hscroll))))
6862 (set-window-configuration owin)
6863 (if err
6864 (signal (car err) (cdr err))
6865 (ding))))))))
6867 (defun gnus-article-read-summary-send-keys ()
6868 (interactive)
6869 (let ((unread-command-events (list (gnus-character-to-event ?S))))
6870 (gnus-article-read-summary-keys)))
6872 (defun gnus-article-describe-key (key)
6873 "Display documentation of the function invoked by KEY.
6874 KEY is a string or a vector."
6875 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6876 (read-key-sequence "Describe key: "))))
6877 (gnus-article-check-buffer)
6878 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6879 gnus-article-read-summary-send-keys))
6880 (with-current-buffer gnus-article-current-summary
6881 (setq unread-command-events
6882 (if (featurep 'xemacs)
6883 (append key nil)
6884 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6885 (list 'meta (- x 128))
6886 x))
6887 key)))
6888 (let ((cursor-in-echo-area t)
6889 gnus-pick-mode)
6890 (describe-key (read-key-sequence nil t))))
6891 (describe-key key)))
6893 (defun gnus-article-describe-key-briefly (key &optional insert)
6894 "Display documentation of the function invoked by KEY.
6895 KEY is a string or a vector."
6896 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6897 (read-key-sequence "Describe key: "))
6898 current-prefix-arg))
6899 (gnus-article-check-buffer)
6900 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6901 gnus-article-read-summary-send-keys))
6902 (with-current-buffer gnus-article-current-summary
6903 (setq unread-command-events
6904 (if (featurep 'xemacs)
6905 (append key nil)
6906 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6907 (list 'meta (- x 128))
6908 x))
6909 key)))
6910 (let ((cursor-in-echo-area t)
6911 gnus-pick-mode)
6912 (describe-key-briefly (read-key-sequence nil t) insert)))
6913 (describe-key-briefly key insert)))
6915 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6916 (defvar gnus-agent-summary-mode)
6917 (defvar gnus-draft-mode)
6918 (defvar help-xref-stack-item)
6919 (defvar help-xref-following)
6921 (defun gnus-article-describe-bindings (&optional prefix)
6922 "Show a list of all defined keys, and their definitions.
6923 The optional argument PREFIX, if non-nil, should be a key sequence;
6924 then we display only bindings that start with that prefix."
6925 (interactive)
6926 (gnus-article-check-buffer)
6927 (let ((keymap (copy-keymap gnus-article-mode-map))
6928 (map (copy-keymap gnus-article-send-map))
6929 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6930 parent agent draft)
6931 (define-key keymap "S" map)
6932 (define-key map [t] nil)
6933 (with-current-buffer gnus-article-current-summary
6934 (set-keymap-parent
6935 keymap
6936 (if (setq parent (keymap-parent gnus-article-mode-map))
6937 (prog1
6938 (setq parent (copy-keymap parent))
6939 (set-keymap-parent parent (current-local-map)))
6940 (current-local-map)))
6941 (set-keymap-parent map (key-binding "S"))
6942 (let (key def gnus-pick-mode)
6943 (while sumkeys
6944 (setq key (pop sumkeys))
6945 (cond ((and (vectorp key) (= (length key) 1)
6946 (consp (setq def (aref key 0)))
6947 (numberp (car def)) (numberp (cdr def)))
6948 (when (< (max (car def) (cdr def)) 128)
6949 (setq sumkeys
6950 (append (mapcar
6951 #'vector
6952 (nreverse (gnus-uncompress-range def)))
6953 sumkeys))))
6954 ((setq def (key-binding key))
6955 (unless (eq def 'undefined)
6956 (define-key keymap key def))))))
6957 (when (boundp 'gnus-agent-summary-mode)
6958 (setq agent gnus-agent-summary-mode))
6959 (when (boundp 'gnus-draft-mode)
6960 (setq draft gnus-draft-mode)))
6961 (with-temp-buffer
6962 (use-local-map keymap)
6963 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6964 (set (make-local-variable 'gnus-draft-mode) draft)
6965 (describe-bindings prefix))
6966 (let ((item `((lambda (prefix)
6967 (with-current-buffer ,(current-buffer)
6968 (gnus-article-describe-bindings prefix)))
6969 ,prefix)))
6970 ;; Loading `help-mode' here is necessary if `describe-bindings'
6971 ;; is replaced with something, e.g. `helm-descbinds'.
6972 (require 'help-mode)
6973 (with-current-buffer (let (help-xref-following) (help-buffer))
6974 (setq help-xref-stack-item item)))))
6976 (defun gnus-article-reply-with-original (&optional wide)
6977 "Start composing a reply mail to the current message.
6978 The text in the region will be yanked. If the region isn't active,
6979 the entire article will be yanked."
6980 (interactive)
6981 (let ((article (cdr gnus-article-current))
6982 contents)
6983 (if (not (gnus-region-active-p))
6984 (with-current-buffer gnus-summary-buffer
6985 (gnus-summary-reply (list (list article)) wide))
6986 (setq contents (buffer-substring (point) (mark t)))
6987 ;; Deactivate active regions.
6988 (when (and (boundp 'transient-mark-mode)
6989 transient-mark-mode)
6990 (setq mark-active nil))
6991 (with-current-buffer gnus-summary-buffer
6992 (gnus-summary-reply
6993 (list (list article contents)) wide)))))
6995 (defun gnus-article-wide-reply-with-original ()
6996 "Start composing a wide reply mail to the current message.
6997 The text in the region will be yanked. If the region isn't active,
6998 the entire article will be yanked."
6999 (interactive)
7000 (gnus-article-reply-with-original t))
7002 (defun gnus-article-followup-with-original ()
7003 "Compose a followup to the current article.
7004 The text in the region will be yanked. If the region isn't active,
7005 the entire article will be yanked."
7006 (interactive)
7007 (let ((article (cdr gnus-article-current))
7008 contents)
7009 (if (not (gnus-region-active-p))
7010 (with-current-buffer gnus-summary-buffer
7011 (gnus-summary-followup (list (list article))))
7012 (setq contents (buffer-substring (point) (mark t)))
7013 ;; Deactivate active regions.
7014 (when (and (boundp 'transient-mark-mode)
7015 transient-mark-mode)
7016 (setq mark-active nil))
7017 (with-current-buffer gnus-summary-buffer
7018 (gnus-summary-followup
7019 (list (list article contents)))))))
7021 (defun gnus-article-hide (&optional arg force)
7022 "Hide all the gruft in the current article.
7023 This means that signatures, cited text and (some) headers will be
7024 hidden.
7025 If given a prefix, show the hidden text instead."
7026 (interactive (append (gnus-article-hidden-arg) (list 'force)))
7027 (gnus-article-hide-headers arg)
7028 (gnus-article-hide-list-identifiers arg)
7029 (gnus-article-hide-citation-maybe arg force)
7030 (gnus-article-hide-signature arg))
7032 (defun gnus-check-group-server ()
7033 ;; Make sure the connection to the server is alive.
7034 (unless (gnus-server-opened
7035 (gnus-find-method-for-group gnus-newsgroup-name))
7036 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
7037 (gnus-request-group gnus-newsgroup-name t)))
7039 (eval-when-compile
7040 (autoload 'nneething-get-file-name "nneething"))
7042 (defun gnus-request-article-this-buffer (article group)
7043 "Get an article and insert it into this buffer."
7044 (let (do-update-line sparse-header)
7045 (prog1
7046 (save-excursion
7047 (erase-buffer)
7048 (gnus-kill-all-overlays)
7049 (setq group (or group gnus-newsgroup-name))
7051 ;; Using `gnus-request-article' directly will insert the article into
7052 ;; `nntp-server-buffer' - so we'll save some time by not having to
7053 ;; copy it from the server buffer into the article buffer.
7055 ;; We only request an article by message-id when we do not have the
7056 ;; headers for it, so we'll have to get those.
7057 (when (stringp article)
7058 (gnus-read-header article))
7060 ;; If the article number is negative, that means that this article
7061 ;; doesn't belong in this newsgroup (possibly), so we find its
7062 ;; message-id and request it by id instead of number.
7063 (when (and (numberp article)
7064 gnus-summary-buffer
7065 (get-buffer gnus-summary-buffer)
7066 (gnus-buffer-exists-p gnus-summary-buffer))
7067 (with-current-buffer gnus-summary-buffer
7068 (let ((header (gnus-summary-article-header article)))
7069 (when (< article 0)
7070 (cond
7071 ((memq article gnus-newsgroup-sparse)
7072 ;; This is a sparse gap article.
7073 (setq do-update-line article)
7074 (setq article (mail-header-id header))
7075 (setq sparse-header (gnus-read-header article))
7076 (setq gnus-newsgroup-sparse
7077 (delq article gnus-newsgroup-sparse)))
7078 ((vectorp header)
7079 ;; It's a real article.
7080 (setq article (mail-header-id header)))
7081 (t
7082 ;; It is an extracted pseudo-article.
7083 (setq article 'pseudo)
7084 (gnus-request-pseudo-article header))))
7086 (let ((method (gnus-find-method-for-group
7087 gnus-newsgroup-name)))
7088 (when (and (eq (car method) 'nneething)
7089 (vectorp header))
7090 (let ((dir (nneething-get-file-name
7091 (mail-header-id header))))
7092 (when (and (stringp dir)
7093 (file-directory-p dir))
7094 (setq article 'nneething)
7095 (gnus-group-enter-directory dir))))))))
7097 (cond
7098 ;; Refuse to select canceled articles.
7099 ((and (numberp article)
7100 gnus-summary-buffer
7101 (get-buffer gnus-summary-buffer)
7102 (gnus-buffer-exists-p gnus-summary-buffer)
7103 (eq (cdr (with-current-buffer gnus-summary-buffer
7104 (assq article gnus-newsgroup-reads)))
7105 gnus-canceled-mark))
7106 nil)
7107 ;; We first check `gnus-original-article-buffer'.
7108 ((and (get-buffer gnus-original-article-buffer)
7109 (numberp article)
7110 (with-current-buffer gnus-original-article-buffer
7111 (and (equal (car gnus-original-article) group)
7112 (eq (cdr gnus-original-article) article))))
7113 ;; `insert-buffer-substring' would incorrectly use the
7114 ;; equivalent of string-make-multibyte which amount to decoding
7115 ;; with locale-coding-system, causing failure of
7116 ;; subsequent decoding.
7117 (insert (mm-string-to-multibyte
7118 (with-current-buffer gnus-original-article-buffer
7119 (buffer-substring (point-min) (point-max)))))
7120 'article)
7121 ;; Check the backlog.
7122 ((and gnus-keep-backlog
7123 (gnus-backlog-request-article group article (current-buffer)))
7124 'article)
7125 ;; Check asynchronous pre-fetch.
7126 ((gnus-async-request-fetched-article group article (current-buffer))
7127 (gnus-async-prefetch-next group article gnus-summary-buffer)
7128 (when (and (numberp article) gnus-keep-backlog)
7129 (gnus-backlog-enter-article group article (current-buffer)))
7130 'article)
7131 ;; Check the cache.
7132 ((and gnus-use-cache
7133 (numberp article)
7134 (gnus-cache-request-article article group))
7135 'article)
7136 ;; Check the agent cache.
7137 ((gnus-agent-request-article article group)
7138 'article)
7139 ;; Get the article and put into the article buffer.
7140 ((or (stringp article)
7141 (numberp article))
7142 (let ((gnus-override-method gnus-override-method)
7143 (methods (and (stringp article)
7144 (with-current-buffer gnus-summary-buffer
7145 (gnus-refer-article-methods))))
7146 (backend (car (gnus-find-method-for-group
7147 gnus-newsgroup-name)))
7148 result
7149 (inhibit-read-only t))
7150 (when (and (null gnus-override-method)
7151 methods)
7152 (setq gnus-override-method (pop methods)))
7153 (while (not result)
7154 (erase-buffer)
7155 (gnus-kill-all-overlays)
7156 (let ((gnus-newsgroup-name group))
7157 (gnus-check-group-server))
7158 (cond
7159 ((gnus-request-article article group (current-buffer))
7160 (when (numberp article)
7161 (gnus-async-prefetch-next group article
7162 gnus-summary-buffer)
7163 (when gnus-keep-backlog
7164 (gnus-backlog-enter-article
7165 group article (current-buffer)))
7166 (when (and gnus-agent
7167 (gnus-agent-group-covered-p group))
7168 (gnus-agent-store-article article group)))
7169 (setq result 'article))
7170 (methods
7171 (setq gnus-override-method (pop methods)))
7172 ((not (string-match "^400 "
7173 (nnheader-get-report backend)))
7174 ;; If we get 400 server disconnect, reconnect and
7175 ;; retry; otherwise, assume the article has expired.
7176 (setq result 'done))))
7177 (and (eq result 'article) 'article)))
7178 ;; It was a pseudo.
7179 (t article)))
7181 ;; Associate this article with the current summary buffer.
7182 (setq gnus-article-current-summary gnus-summary-buffer)
7184 ;; Take the article from the original article buffer
7185 ;; and place it in the buffer it's supposed to be in.
7186 (when (and (get-buffer gnus-article-buffer)
7187 (equal (buffer-name (current-buffer))
7188 (buffer-name (get-buffer gnus-article-buffer))))
7189 (save-excursion
7190 (if (get-buffer gnus-original-article-buffer)
7191 (set-buffer gnus-original-article-buffer)
7192 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
7193 (buffer-disable-undo)
7194 (setq major-mode 'gnus-original-article-mode)
7195 (setq buffer-read-only t))
7196 (let ((inhibit-read-only t))
7197 (erase-buffer)
7198 (insert-buffer-substring gnus-article-buffer))
7199 (setq gnus-original-article (cons group article)))
7201 ;; Decode charsets.
7202 (run-hooks 'gnus-article-decode-hook)
7203 ;; Mark article as decoded or not.
7204 (setq gnus-article-decoded-p gnus-article-decode-hook))
7206 ;; Update sparse articles.
7207 (when (and do-update-line
7208 (or (numberp article)
7209 (stringp article)))
7210 (let ((buf (current-buffer)))
7211 (set-buffer gnus-summary-buffer)
7212 (gnus-summary-update-article do-update-line sparse-header)
7213 (gnus-summary-goto-subject do-update-line nil t)
7214 (set-window-point (gnus-get-buffer-window (current-buffer) t)
7215 (point))
7216 (set-buffer buf))))))
7218 (defun gnus-block-private-groups (group)
7219 "Allows images in newsgroups to be shown, blocks images in all
7220 other groups."
7221 (if (or (gnus-news-group-p group)
7222 (gnus-member-of-valid 'global group))
7223 ;; Block nothing in news groups.
7224 nil
7225 ;; Block everything anywhere else.
7226 "."))
7228 (defun gnus-blocked-images ()
7229 (if (functionp gnus-blocked-images)
7230 (funcall gnus-blocked-images gnus-newsgroup-name)
7231 gnus-blocked-images))
7233 ;;;
7234 ;;; Article editing
7235 ;;;
7237 (defcustom gnus-article-edit-mode-hook nil
7238 "Hook run in article edit mode buffers."
7239 :group 'gnus-article-various
7240 :type 'hook)
7242 (defvar gnus-article-edit-done-function nil)
7244 (defvar gnus-article-edit-mode-map nil)
7246 ;; Should we be using derived.el for this?
7247 (unless gnus-article-edit-mode-map
7248 (setq gnus-article-edit-mode-map (make-keymap))
7249 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
7251 (gnus-define-keys gnus-article-edit-mode-map
7252 "\C-c?" describe-mode
7253 "\C-c\C-c" gnus-article-edit-done
7254 "\C-c\C-k" gnus-article-edit-exit
7255 "\C-c\C-f\C-t" message-goto-to
7256 "\C-c\C-f\C-o" message-goto-from
7257 "\C-c\C-f\C-b" message-goto-bcc
7258 ;;"\C-c\C-f\C-w" message-goto-fcc
7259 "\C-c\C-f\C-c" message-goto-cc
7260 "\C-c\C-f\C-s" message-goto-subject
7261 "\C-c\C-f\C-r" message-goto-reply-to
7262 "\C-c\C-f\C-n" message-goto-newsgroups
7263 "\C-c\C-f\C-d" message-goto-distribution
7264 "\C-c\C-f\C-f" message-goto-followup-to
7265 "\C-c\C-f\C-m" message-goto-mail-followup-to
7266 "\C-c\C-f\C-k" message-goto-keywords
7267 "\C-c\C-f\C-u" message-goto-summary
7268 "\C-c\C-f\C-i" message-insert-or-toggle-importance
7269 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
7270 "\C-c\C-b" message-goto-body
7271 "\C-c\C-i" message-goto-signature
7273 "\C-c\C-t" message-insert-to
7274 "\C-c\C-n" message-insert-newsgroups
7275 "\C-c\C-o" message-sort-headers
7276 "\C-c\C-e" message-elide-region
7277 "\C-c\C-v" message-delete-not-region
7278 "\C-c\C-z" message-kill-to-signature
7280 "\C-c\C-a" mml-attach-file
7281 "\C-a" message-beginning-of-line
7283 "\M-;" comment-region)
7285 (gnus-define-keys (gnus-article-edit-wash-map
7286 "\C-c\C-w" gnus-article-edit-mode-map)
7287 "f" gnus-article-edit-full-stops))
7289 (easy-menu-define
7290 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
7291 '("Field"
7292 ["Fetch To" message-insert-to t]
7293 ["Fetch Newsgroups" message-insert-newsgroups t]
7294 "----"
7295 ["To" message-goto-to t]
7296 ["From" message-goto-from t]
7297 ["Subject" message-goto-subject t]
7298 ["Cc" message-goto-cc t]
7299 ["Reply-To" message-goto-reply-to t]
7300 ["Summary" message-goto-summary t]
7301 ["Keywords" message-goto-keywords t]
7302 ["Newsgroups" message-goto-newsgroups t]
7303 ["Followup-To" message-goto-followup-to t]
7304 ["Mail-Followup-To" message-goto-mail-followup-to t]
7305 ["Distribution" message-goto-distribution t]
7306 ["Body" message-goto-body t]
7307 ["Signature" message-goto-signature t]))
7309 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
7310 "Major mode for editing articles.
7311 This is an extended text-mode.
7314 (make-local-variable 'gnus-article-edit-done-function)
7315 (make-local-variable 'gnus-prev-winconf)
7316 (set (make-local-variable 'font-lock-defaults)
7317 '(message-font-lock-keywords t))
7318 (set (make-local-variable 'mail-header-separator) "")
7319 (set (make-local-variable 'gnus-article-edit-mode) t)
7320 (easy-menu-add message-mode-field-menu message-mode-map)
7321 (mml-mode)
7322 (setq buffer-read-only nil)
7323 (buffer-enable-undo)
7324 (widen))
7326 (defun gnus-article-edit (&optional force)
7327 "Edit the current article.
7328 This will have permanent effect only in mail groups.
7329 If FORCE is non-nil, allow editing of articles even in read-only
7330 groups."
7331 (interactive "P")
7332 (when (and (not force)
7333 (gnus-group-read-only-p))
7334 (error "The current newsgroup does not support article editing"))
7335 (gnus-article-date-original)
7336 (gnus-article-edit-article
7337 'ignore
7338 `(lambda (no-highlight)
7339 'ignore
7340 (gnus-summary-edit-article-done
7341 ,(or (mail-header-references gnus-current-headers) "")
7342 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
7344 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
7345 "Start editing the contents of the current article buffer."
7346 (let ((winconf (current-window-configuration)))
7347 (set-buffer gnus-article-buffer)
7348 (let ((message-auto-save-directory
7349 ;; Don't associate the article buffer with a draft file.
7350 nil))
7351 (gnus-article-edit-mode))
7352 (funcall start-func)
7353 (set-buffer-modified-p nil)
7354 (gnus-configure-windows 'edit-article)
7355 (setq gnus-article-edit-done-function exit-func)
7356 (setq gnus-prev-winconf winconf)
7357 (unless quiet
7358 (gnus-message 6 "C-c C-c to end edits"))))
7360 (defun gnus-article-edit-done (&optional arg)
7361 "Update the article edits and exit."
7362 (interactive "P")
7363 (let ((func gnus-article-edit-done-function)
7364 (buf (current-buffer))
7365 (start (window-start))
7366 (winconf gnus-prev-winconf))
7367 (widen) ;; Widen it in case that users narrowed the buffer.
7368 (funcall func arg)
7369 (set-buffer buf)
7370 ;; The cache and backlog have to be flushed somewhat.
7371 (when gnus-keep-backlog
7372 (gnus-backlog-remove-article
7373 (car gnus-article-current) (cdr gnus-article-current)))
7374 ;; Flush original article as well.
7375 (gnus-flush-original-article-buffer)
7376 (when gnus-use-cache
7377 (gnus-cache-update-article
7378 (car gnus-article-current) (cdr gnus-article-current)))
7379 ;; We remove all text props from the article buffer.
7380 (kill-all-local-variables)
7381 (set-text-properties (point-min) (point-max) nil)
7382 (gnus-article-mode)
7383 (set-window-configuration winconf)
7384 (set-buffer buf)
7385 (set-window-start (get-buffer-window buf) start)
7386 (set-window-point (get-buffer-window buf) (point)))
7387 (gnus-summary-show-article))
7389 (defun gnus-flush-original-article-buffer ()
7390 (when (get-buffer gnus-original-article-buffer)
7391 (with-current-buffer gnus-original-article-buffer
7392 (setq gnus-original-article nil))))
7394 (defun gnus-article-edit-exit ()
7395 "Exit the article editing without updating."
7396 (interactive)
7397 (when (or (not (buffer-modified-p))
7398 (yes-or-no-p "Article modified; kill anyway? "))
7399 (let ((curbuf (current-buffer))
7400 (p (point))
7401 (window-start (window-start)))
7402 (erase-buffer)
7403 (if (gnus-buffer-live-p gnus-original-article-buffer)
7404 (insert-buffer-substring gnus-original-article-buffer))
7405 (let ((winconf gnus-prev-winconf))
7406 (kill-all-local-variables)
7407 (gnus-article-mode)
7408 (set-window-configuration winconf)
7409 ;; Tippy-toe some to make sure that point remains where it was.
7410 (save-current-buffer
7411 (set-buffer curbuf)
7412 (set-window-start (get-buffer-window (current-buffer)) window-start)
7413 (goto-char p))))
7414 (gnus-summary-show-article)))
7416 (defun gnus-article-edit-full-stops ()
7417 "Interactively repair spacing at end of sentences."
7418 (interactive)
7419 (save-excursion
7420 (goto-char (point-min))
7421 (search-forward-regexp "^$" nil t)
7422 (let ((case-fold-search nil))
7425 ;;;
7426 ;;; Article highlights
7427 ;;;
7429 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
7431 ;;; Internal Variables:
7433 (defcustom gnus-button-url-regexp
7434 (concat
7438 (if (string-match "[[:digit:]]" "1") ;; Support POSIX?
7440 (punct "!?:;.,"))
7441 (concat
7443 ;; Match paired parentheses, e.g. in Wikipedia URLs:
7444 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
7445 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)"
7448 "[" chars punct "]+" "[" chars "]"
7450 (concat ;; XEmacs 21.4 doesn't support POSIX.
7454 "Regular expression that matches URLs."
7455 :version "24.4"
7456 :group 'gnus-article-buttons
7457 :type 'regexp)
7459 (defcustom gnus-button-valid-fqdn-regexp
7460 message-valid-fqdn-regexp
7461 "Regular expression that matches a valid FQDN."
7462 :version "22.1"
7463 :group 'gnus-article-buttons
7464 :type 'regexp)
7466 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
7467 (defcustom gnus-button-valid-localpart-regexp
7469 "Regular expression that matches a localpart of mail addresses or MIDs."
7470 :version "22.1"
7471 :group 'gnus-article-buttons
7472 :type 'regexp)
7474 (defcustom gnus-button-man-handler 'manual-entry
7475 "Function to use for displaying man pages.
7476 The function must take at least one argument with a string naming the
7477 man page."
7478 :version "22.1"
7479 :type '(choice (function-item :tag "Man" manual-entry)
7480 (function-item :tag "Woman" woman)
7481 (function :tag "Other"))
7482 :group 'gnus-article-buttons)
7484 (defcustom gnus-button-mid-or-mail-regexp
7486 gnus-button-valid-fqdn-regexp
7488 "Regular expression that matches a message ID or a mail address."
7489 :version "22.1"
7490 :group 'gnus-article-buttons
7491 :type 'regexp)
7493 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
7495 Strings like this can be either a message ID or a mail address. If it is one
7496 of the symbols `mid' or `mail', Gnus will always assume that the string is a
7497 message ID or a mail address, respectively. If this variable is set to the
7498 symbol `ask', always query the user what do do. If it is a function, this
7499 function will be called with the string as its only argument. The function
7500 must return `mid', `mail', `invalid' or `ask'."
7501 :version "22.1"
7502 :group 'gnus-article-buttons
7503 :type '(choice (function-item :tag "Heuristic function"
7504 gnus-button-mid-or-mail-heuristic)
7505 (const ask)
7506 (const mid)
7507 (const mail)))
7509 (defcustom gnus-button-mid-or-mail-heuristic-alist
7511 (-10.0 . "#")
7514 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7515 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7516 (-1.0 . "^[^a-z]+@")
7517 ;;
7519 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7520 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7522 ;;
7523 (-2.0 . "^[0-9]")
7524 (-1.0 . "^[0-9][0-9]")
7525 ;;
7526 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7527 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7528 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7529 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7530 ;;
7531 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7532 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7533 ;; "[0-9]{8,}.*\@"
7534 (-3.0
7535 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7536 ;; "[0-9]{12,}.*\@"
7537 ;; compensation for TDMA dated mail addresses:
7538 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7539 ;;
7541 (-20.0 . "^slrn")
7542 (-20.0 . "^Pine")
7544 (-20.0 . "_-_") ;; Subject change in thread
7545 ;;
7549 ;;
7550 ;; (5.0 . "") ;; $local_part_len <= 7
7551 (10.0 . "^[^0-9]+@")
7552 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7553 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7554 (3.0 . "\@stud")
7555 ;;
7556 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7557 ;;
7558 (0.5 . "^[A-Z][a-z]")
7559 (0.5 . "^[A-Z][a-z][a-z]")
7560 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7561 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7562 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
7564 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7565 address. The REGEXP is processed with `case-fold-search' set to nil."
7566 :version "22.1"
7567 :group 'gnus-article-buttons
7568 :type '(repeat (cons (number :tag "Rate")
7569 (regexp :tag "Regexp"))))
7571 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7572 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7573 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7574 address, `ask' if unsure and `invalid' if the string is invalid."
7575 (let ((case-fold-search nil)
7576 (list gnus-button-mid-or-mail-heuristic-alist)
7577 (result 0) rate regexp lpartlen elem)
7578 (setq lpartlen
7580 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7581 ;; Certain special cases...
7582 (when (string-match
7583 (concat
7587 mid-or-mail)
7588 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7589 (setq result 'mail))
7591 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7592 (setq result 'invalid))
7593 ;; Nothing more to do, if result is not a number here...
7594 (when (numberp result)
7595 (while list
7596 (setq elem (car list)
7597 rate (car elem)
7598 regexp (cdr elem)
7599 list (cdr list))
7600 (when (string-match regexp mid-or-mail)
7601 (setq result (+ result rate))
7602 (gnus-message
7603 9 "`%s' matched `%s', rate `%s', result `%s'."
7604 mid-or-mail regexp rate result)))
7605 (when (<= lpartlen 7)
7606 (setq result (+ result 5.0))
7607 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7608 mid-or-mail result))
7609 (when (>= lpartlen 12)
7610 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7611 (cond
7612 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7613 ;; Long local part should contain realname if e-mail address,
7614 ;; too many digits: message-id.
7615 ;; $score -= 5.0 + 0.1 * $local_part_len;
7616 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7617 (setq result (+ result rate))
7618 (gnus-message
7619 9 "Many digits in `%s', rate `%s', result `%s'."
7620 mid-or-mail rate result))
7621 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
7622 mid-or-mail)
7623 ;; Too few vowels [^aeiouy]{4,}.*\@
7624 (setq result (+ result -5.0))
7625 (gnus-message
7626 9 "Few vowels in `%s', rate `%s', result `%s'."
7627 mid-or-mail -5.0 result))
7628 (t
7629 (setq result (+ result 5.0))
7630 (gnus-message
7631 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7632 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7633 ;; Maybe we should make this a customizable alist: (condition . 'result)
7634 (cond
7635 ((symbolp result) result)
7636 ;; Now convert number into proper results:
7637 ((< result -10.0) 'mid)
7638 ((> result 10.0) 'mail)
7639 (t 'ask))))
7641 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7642 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7643 (url-mid (concat "news" ":" mid-or-mail))
7644 (url-mailto (concat "mailto" ":" mid-or-mail)))
7645 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7646 (when (fboundp pref)
7647 (setq guessed
7648 ;; get rid of surrounding angles...
7649 (funcall pref
7651 (if (or (eq 'mid guessed) (eq 'mail guessed))
7652 (setq pref guessed)
7653 (setq pref 'ask)))
7654 (if (eq pref 'ask)
7655 (save-window-excursion
7656 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7657 (setq pref 'mail)
7658 (setq pref 'mid))))
7659 (cond ((eq pref 'mid)
7660 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7661 (gnus-button-handle-news url-mid))
7662 ((eq pref 'mail)
7663 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7664 (gnus-url-mailto url-mailto))
7665 (t (gnus-message 3 "Invalid string.")))))
7667 (defun gnus-button-handle-custom (fun arg)
7668 "Call function FUN on argument ARG.
7669 Both FUN and ARG are supposed to be strings. ARG will be passed
7670 as a symbol to FUN."
7671 (funcall (intern fun)
7672 (if (string-match "^customize-apropos" fun)
7673 arg
7674 (intern arg))))
7678 (defun gnus-button-handle-describe-function (url)
7679 "Call `describe-function' when pushing the corresponding URL button."
7680 (describe-function
7681 (intern
7682 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7684 (defun gnus-button-handle-describe-variable (url)
7685 "Call `describe-variable' when pushing the corresponding URL button."
7686 (describe-variable
7687 (intern
7688 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7690 (defun gnus-button-handle-symbol (url)
7691 "Display help on variable or function.
7692 Calls `describe-variable' or `describe-function'."
7693 (let ((sym (intern url)))
7694 (cond
7695 ((fboundp sym) (describe-function sym))
7696 ((boundp sym) (describe-variable sym))
7697 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7699 (defun gnus-button-handle-describe-key (url)
7700 "Call `describe-key' when pushing the corresponding URL button."
7701 (let* ((key-string
7702 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
7703 (keys (ignore-errors (eval `(kbd ,key-string)))))
7704 (if keys
7705 (describe-key keys)
7706 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7708 (defun gnus-button-handle-apropos (url)
7709 "Call `apropos' when pushing the corresponding URL button."
7710 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7712 (defun gnus-button-handle-apropos-command (url)
7713 "Call `apropos' when pushing the corresponding URL button."
7714 (apropos-command
7715 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7717 (defun gnus-button-handle-apropos-variable (url)
7718 "Call `apropos' when pushing the corresponding URL button."
7719 (funcall
7720 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
7721 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7723 (defun gnus-button-handle-apropos-documentation (url)
7724 "Call `apropos' when pushing the corresponding URL button."
7725 (funcall
7726 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
7727 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7729 (defun gnus-button-handle-library (url)
7730 "Call `locate-library' when pushing the corresponding URL button."
7731 (gnus-message 9 "url=`%s'" url)
7732 (let* ((lib (locate-library url))
7733 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
7734 (if (not lib)
7735 (gnus-message 1 "Cannot locale library `%s'." url)
7736 (find-file-read-only file))))
7738 (defcustom gnus-button-man-level 5
7739 "*Integer that says how many man-related buttons Gnus will show.
7740 The higher the number, the more buttons will appear and the more false
7741 positives are possible. Note that you can set this variable local to
7742 specific groups. Setting it higher in Unix groups is probably a good idea.
7743 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7744 how to set variables in specific groups."
7745 :version "22.1"
7746 :group 'gnus-article-buttons
7747 :link '(custom-manual "(gnus)Group Parameters")
7748 :type 'integer)
7750 (defcustom gnus-button-emacs-level 5
7751 "*Integer that says how many emacs-related buttons Gnus will show.
7752 The higher the number, the more buttons will appear and the more false
7753 positives are possible. Note that you can set this variable local to
7754 specific groups. Setting it higher in Emacs or Gnus related groups is
7755 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7756 `gnus-parameters' on how to set variables in specific groups."
7757 :version "22.1"
7758 :group 'gnus-article-buttons
7759 :link '(custom-manual "(gnus)Group Parameters")
7760 :type 'integer)
7762 (defcustom gnus-button-message-level 5
7763 "*Integer that says how many buttons for news or mail messages will appear.
7764 The higher the number, the more buttons will appear and the more false
7765 positives are possible."
7766 ;; mail addresses, MIDs, URLs for news, ...
7767 :version "22.1"
7768 :group 'gnus-article-buttons
7769 :type 'integer)
7771 (defcustom gnus-button-browse-level 5
7772 "*Integer that says how many buttons for browsing will appear.
7773 The higher the number, the more buttons will appear and the more false
7774 positives are possible."
7775 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7776 :version "22.1"
7777 :group 'gnus-article-buttons
7778 :type 'integer)
7780 (defcustom gnus-button-alist
7782 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7785 0 t gnus-button-handle-news 2)
7787 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7789 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7790 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7792 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7794 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7796 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7798 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7799 ;; RFC 2368 (The mailto URL scheme)
7801 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7803 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7804 ;; Info Konqueror style <info:/foo/bar baz>.
7805 ;; Must come before " Gnus home-grown style".
7807 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7808 ;; Info, Gnus home-grown style (deprecated) <info://foo/bar+baz>
7810 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7811 ;; Info GNOME style <info:foo#bar_baz>
7813 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7814 ;; Info KDE style <info:(foo)bar baz>
7816 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7818 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7819 ("\\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,]*\\)\\)?"
7820 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7821 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7822 ;; This is custom
7824 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7825 ;; Emacs help commands
7827 ;; regexp doesn't match arguments containing ` '.
7828 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7830 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7832 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7834 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7835 ;; The following entries may lead to many false positives so don't enable
7836 ;; them by default (use a high button level).
7838 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7839 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7841 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7843 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7845 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7847 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7849 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7851 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7853 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7855 ;; Unlike the other regexps we really have to require quoting
7856 ;; here to determine where it ends.
7857 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7858 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7860 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7861 ;; RFC 2396 (2.4.3., delims) ...
7863 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7864 ;; Raw URLs.
7865 (gnus-button-url-regexp
7866 0 (>= gnus-button-browse-level 0) browse-url 0)
7867 ;; man pages
7869 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7870 gnus-button-handle-man 1)
7871 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7873 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7874 gnus-button-handle-man 1)
7875 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7876 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7878 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7879 ;; Recognizing patches to .el files. This is somewhat obscure,
7880 ;; but considering the percentage of Gnus users who hack Emacs
7881 ;; Lisp files...
7883 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7885 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7886 ;; MID or mail: To avoid too many false positives we don't try to catch
7887 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7888 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7889 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7890 ;; so that non-ambiguous entries (see above) match first.
7891 (gnus-button-mid-or-mail-regexp
7892 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7893 "*Alist of regexps matching buttons in article bodies.
7895 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7896 REGEXP: is the string (case insensitive) matching text around the button (can
7897 also be Lisp expression evaluating to a string),
7898 BUTTON: is the number of the regexp grouping actually matching the button,
7899 FORM: is a Lisp expression which must eval to true for the button to
7900 be added,
7901 CALLBACK: is the function to call when the user push this button, and each
7902 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7904 CALLBACK can also be a variable, in that case the value of that
7905 variable it the real callback function."
7906 :group 'gnus-article-buttons
7907 :type '(repeat (list (choice regexp variable sexp)
7908 (integer :tag "Button")
7909 (sexp :tag "Form")
7910 (function :tag "Callback")
7911 (repeat :tag "Par"
7912 :inline t
7913 (integer :tag "Regexp group")))))
7914 (put 'gnus-button-alist 'risky-local-variable t)
7916 (defcustom gnus-header-button-alist
7918 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7920 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7922 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7923 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7924 0 (>= gnus-button-browse-level 0) browse-url 0)
7925 ("^Subject:" gnus-button-url-regexp
7926 0 (>= gnus-button-browse-level 0) browse-url 0)
7927 ("^[^:]+:" gnus-button-url-regexp
7928 0 (>= gnus-button-browse-level 0) browse-url 0)
7929 ("^OpenPGP:.*url=" gnus-button-url-regexp
7930 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7932 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7934 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7935 "*Alist of headers and regexps to match buttons in article heads.
7937 This alist is very similar to `gnus-button-alist', except that each
7938 alist has an additional HEADER element first in each entry:
7940 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7942 HEADER is a regexp to match a header. For a fuller explanation, see
7943 `gnus-button-alist'."
7944 :group 'gnus-article-buttons
7945 :group 'gnus-article-headers
7946 :type '(repeat (list (regexp :tag "Header")
7947 (choice regexp variable)
7948 (integer :tag "Button")
7949 (sexp :tag "Form")
7950 (function :tag "Callback")
7951 (repeat :tag "Par"
7952 :inline t
7953 (integer :tag "Regexp group")))))
7954 (put 'gnus-header-button-alist 'risky-local-variable t)
7956 ;;; Commands:
7958 (defun gnus-article-push-button (event)
7959 "Check text under the mouse pointer for a callback function.
7960 If the text under the mouse pointer has a `gnus-callback' property,
7961 call it with the value of the `gnus-data' text property."
7962 (interactive "e")
7963 (set-buffer (window-buffer (posn-window (event-start event))))
7964 (let* ((pos (posn-point (event-start event)))
7965 (data (get-text-property pos 'gnus-data))
7966 (fun (get-text-property pos 'gnus-callback)))
7967 (goto-char pos)
7968 (when fun
7969 (funcall fun data))))
7971 (defun gnus-article-press-button ()
7972 "Check text at point for a callback function.
7973 If the text at point has a `gnus-callback' property,
7974 call it with the value of the `gnus-data' text property."
7975 (interactive)
7976 (let ((data (get-text-property (point) 'gnus-data))
7977 (fun (get-text-property (point) 'gnus-callback)))
7978 (when fun
7979 (funcall fun data))))
7981 (defun gnus-article-highlight (&optional force)
7982 "Highlight current article.
7983 This function calls `gnus-article-highlight-headers',
7984 `gnus-article-highlight-citation',
7985 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7986 do the highlighting. See the documentation for those functions."
7987 (interactive (list 'force))
7988 (gnus-article-highlight-headers)
7989 (gnus-article-highlight-citation force)
7990 (gnus-article-highlight-signature)
7991 (gnus-article-add-buttons)
7992 (gnus-article-add-buttons-to-head))
7994 (defun gnus-article-highlight-some (&optional _force)
7995 "Highlight current article.
7996 This function calls `gnus-article-highlight-headers',
7997 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7998 do the highlighting. See the documentation for those functions."
7999 (interactive (list 'force))
8000 (gnus-article-highlight-headers)
8001 (gnus-article-highlight-signature)
8002 (gnus-article-add-buttons))
8004 (defun gnus-article-highlight-headers ()
8005 "Highlight article headers as specified by `gnus-header-face-alist'."
8006 (interactive)
8007 (gnus-with-article-headers
8008 (let (regexp header-face field-face from hpoints fpoints)
8009 (dolist (entry gnus-header-face-alist)
8010 (goto-char (point-min))
8012 (if (string-equal "" (nth 0 entry))
8014 (nth 0 entry))
8016 header-face (nth 1 entry)
8017 field-face (nth 2 entry))
8018 (while (and (re-search-forward regexp nil t)
8019 (not (eobp)))
8020 (beginning-of-line)
8021 (setq from (point))
8022 (unless (search-forward ":" nil t)
8023 (forward-char 1))
8024 (when (and header-face
8025 (not (memq (point) hpoints)))
8026 (push (point) hpoints)
8027 (gnus-put-text-property from (point) 'face header-face))
8028 (when (and field-face
8029 (not (memq (setq from (point)) fpoints)))
8030 (push from fpoints)
8032 (forward-char -2)
8033 (goto-char (point-max)))
8034 (gnus-put-text-property from (point) 'face field-face)))))))
8036 (defun gnus-article-highlight-signature ()
8037 "Highlight the signature in an article.
8038 It does this by highlighting everything after
8039 `gnus-signature-separator' using the face `gnus-signature'."
8040 (interactive)
8041 (gnus-with-article-buffer
8042 (let ((inhibit-point-motion-hooks t))
8043 (save-restriction
8044 (when (and gnus-signature-face
8045 (gnus-article-narrow-to-signature))
8046 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max) nil t)
8047 'face gnus-signature-face)
8048 (widen)
8049 (gnus-article-search-signature)
8050 (let ((start (match-beginning 0))
8051 (end (set-marker (make-marker) (1+ (match-end 0)))))
8052 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
8053 end)))))))
8055 (defun gnus-button-in-region-p (b e prop)
8056 "Say whether PROP exists in the region."
8057 (text-property-not-all b e prop nil))
8059 (defun gnus-article-add-buttons ()
8060 "Find external references in the article and make buttons of them.
8062 specified by `gnus-button-alist'."
8063 (interactive)
8064 (gnus-with-article-buffer
8065 (let ((inhibit-point-motion-hooks t)
8066 (case-fold-search t)
8067 (alist gnus-button-alist)
8068 beg entry regexp)
8069 ;; We skip the headers.
8070 (article-goto-body)
8071 (setq beg (point))
8072 (while (setq entry (pop alist))
8073 (setq regexp (eval (car entry)))
8074 (goto-char beg)
8075 (while (re-search-forward regexp nil t)
8076 (let ((start (match-beginning (nth 1 entry)))
8077 (end (match-end (nth 1 entry)))
8078 (from (match-beginning 0)))
8079 (when (and (eval (nth 2 entry))
8080 (not (gnus-button-in-region-p
8081 start end 'gnus-callback)))
8082 ;; That optional form returned non-nil, so we add the
8083 ;; button.
8084 (setq from (set-marker (make-marker) from))
8085 (unless (and (eq (car entry) 'gnus-button-url-regexp)
8086 (gnus-article-extend-url-button from start end))
8087 (gnus-article-add-button start end
8088 'gnus-button-push (list from entry))
8089 (gnus-put-text-property
8090 start end
8091 'gnus-string (buffer-substring-no-properties
8092 start end))))))))))
8094 (defun gnus-article-extend-url-button (beg start end)
8095 "Extend url button if url is folded into two or more lines.
8096 Return non-nil if button is extended. BEG is a marker that points to
8097 the beginning position of a text containing url. START and END are
8098 the endpoints of a url button before it is extended. The concatenated
8099 url is put as the `gnus-button-url' overlay property on the button."
8100 (let ((opoint (point))
8101 (points (list start end))
8102 url delim regexp)
8103 (prog1
8104 (when (and (progn
8105 (goto-char end)
8107 (progn
8108 (goto-char start)
8109 (string-match
8111 (buffer-substring (point-at-bol) start)))
8112 (progn
8113 (setq url (list (buffer-substring start end))
8115 (beginning-of-line)
8116 (setq regexp (concat
8117 (when (and (looking-at
8118 message-cite-prefix-regexp)
8119 (< (match-end 0) start))
8120 (regexp-quote (match-string 0)))
8121 "\
8124 (while (progn
8125 (forward-line 1)
8126 (and (looking-at regexp)
8127 (prog1
8128 (match-beginning 1)
8129 (push (or (match-string 2)
8130 (match-string 1))
8131 url)
8132 (push (setq end (or (match-end 2)
8133 (match-end 1)))
8134 points)
8135 (push (or (match-beginning 2)
8136 (match-beginning 1))
8137 points)))))
8138 (match-beginning 2)))
8139 (let (gnus-article-mouse-face widget-mouse-face)
8140 (while points
8141 (gnus-article-add-button (pop points) (pop points)
8142 'gnus-button-push
8143 (list beg (assq 'gnus-button-url-regexp
8144 gnus-button-alist)))))
8145 (let ((overlay (gnus-make-overlay start end)))
8146 (gnus-overlay-put overlay 'evaporate t)
8147 (gnus-overlay-put overlay 'gnus-button-url
8148 (list (mapconcat 'identity (nreverse url) "")))
8149 (when gnus-article-mouse-face
8150 (gnus-overlay-put overlay 'mouse-face gnus-article-mouse-face)))
8151 t)
8152 (goto-char opoint))))
8154 ;; Add buttons to the head of an article.
8155 (defun gnus-article-add-buttons-to-head ()
8156 "Add buttons to the head of the article."
8157 (interactive)
8158 (gnus-with-article-headers
8159 (let (beg end)
8160 (dolist (entry gnus-header-button-alist)
8161 ;; Each alist entry.
8162 (goto-char (point-min))
8163 (while (re-search-forward (car entry) nil t)
8164 ;; Each header matching the entry.
8165 (setq beg (match-beginning 0))
8167 (match-beginning 0))
8168 (point-max)))
8169 (goto-char beg)
8170 (while (re-search-forward (eval (nth 1 entry)) end t)
8171 ;; Each match within a header.
8172 (let* ((entry (cdr entry))
8173 (start (match-beginning (nth 1 entry)))
8174 (end (match-end (nth 1 entry)))
8175 (form (nth 2 entry)))
8176 (goto-char (match-end 0))
8177 (when (eval form)
8178 (gnus-article-add-button
8179 start end (nth 3 entry)
8180 (buffer-substring (match-beginning (nth 4 entry))
8181 (match-end (nth 4 entry)))))))
8182 (goto-char end))))))
8184 ;;; External functions:
8186 (defun gnus-article-add-button (from to fun &optional data text)
8187 "Create a button between FROM and TO with callback FUN and data DATA."
8188 (when gnus-article-button-face
8189 (gnus-overlay-put (gnus-make-overlay from to nil t)
8190 'face gnus-article-button-face))
8191 (gnus-add-text-properties
8192 from to
8193 (nconc (and gnus-article-mouse-face
8194 (list gnus-mouse-face-prop gnus-article-mouse-face))
8195 (list 'gnus-callback fun)
8196 (and data (list 'gnus-data data))))
8197 (widget-convert-button 'link from to :action 'gnus-widget-press-button
8198 :help-echo (or text "Follow the link")
8199 :keymap gnus-url-button-map
8200 :button-keymap gnus-widget-button-keymap))
8202 (defun gnus-article-copy-string ()
8203 "Copy the string in the button to the kill ring."
8204 (interactive)
8205 (gnus-article-check-buffer)
8206 (let ((data (get-text-property (point) 'gnus-string)))
8207 (when data
8208 (with-temp-buffer
8209 (insert data)
8210 (copy-region-as-kill (point-min) (point-max))
8211 (message "Copied %s" data)))))
8213 ;;; Internal functions:
8215 (defun gnus-article-set-globals ()
8216 (with-current-buffer gnus-summary-buffer
8217 (gnus-set-global-variables)))
8219 (defun gnus-signature-toggle (end)
8220 (gnus-with-article-buffer
8221 (let ((inhibit-point-motion-hooks t))
8222 (if (text-property-any end (point-max) 'article-type 'signature)
8223 (progn
8224 (gnus-delete-wash-type 'signature)
8225 (gnus-remove-text-properties-when
8226 'article-type 'signature end (point-max)
8227 (cons 'article-type (cons 'signature
8228 gnus-hidden-properties))))
8229 (gnus-add-wash-type 'signature)
8230 (gnus-add-text-properties-when
8231 'article-type nil end (point-max)
8232 (cons 'article-type (cons 'signature
8233 gnus-hidden-properties)))))
8234 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
8235 (gnus-set-mode-line 'article))))
8237 (defun gnus-button-push (marker-and-entry)
8238 ;; Push button starting at MARKER.
8239 (save-excursion
8240 (let* ((marker (car marker-and-entry))
8241 (entry (cadr marker-and-entry))
8242 (regexp (car entry))
8243 (inhibit-point-motion-hooks t))
8244 (goto-char marker)
8245 ;; This is obviously true, or something bad is happening :)
8246 ;; But we need it to have the match-data
8247 (when (looking-at (or (if (symbolp regexp)
8248 (symbol-value regexp)
8249 regexp)))
8250 (let ((fun (nth 3 entry))
8251 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
8252 (get-char-property marker 'gnus-button-url))
8253 (mapcar (lambda (group)
8254 (let ((string (match-string group)))
8255 (set-text-properties
8256 0 (length string) nil string)
8257 string))
8258 (nthcdr 4 entry)))))
8260 (cond
8261 ((fboundp fun)
8262 (apply fun args))
8263 ((and (boundp fun)
8264 (fboundp (symbol-value fun)))
8265 (apply (symbol-value fun) args))
8266 (t
8267 (gnus-message 1 "You must define `%S' to use this button"
8268 (cons fun args)))))))))
8270 (defun gnus-parse-news-url (url)
8271 (let (scheme server port group message-id articles)
8272 (with-temp-buffer
8273 (insert url)
8274 (goto-char (point-min))
8276 (setq scheme (match-string 1))
8277 (goto-char (match-end 0)))
8279 (setq server (match-string 1))
8280 (setq port (if (stringp (match-string 3))
8281 (string-to-number (match-string 3))
8282 (match-string 3)))
8283 (goto-char (match-end 0)))
8285 (cond
8287 (setq message-id (match-string 1)))
8289 (setq group (match-string 1)
8290 articles (split-string (match-string 2) "-")))
8292 (setq group (match-string 1)))
8293 (t
8294 (error "Unknown news URL syntax"))))
8295 (list scheme server port group message-id articles)))
8297 (defvar nntp-port-number)
8299 (defun gnus-button-handle-news (url)
8300 "Fetch a news URL."
8301 (destructuring-bind (_scheme server port group message-id _articles)
8302 (gnus-parse-news-url url)
8303 (cond
8304 (message-id
8305 (with-current-buffer gnus-summary-buffer
8306 (if server
8307 (let ((gnus-refer-article-method
8308 (nconc (list (list 'nntp server))
8309 gnus-refer-article-method))
8310 (nntp-port-number (or port "nntp")))
8311 (gnus-message 7 "Fetching %s with %s"
8312 message-id gnus-refer-article-method)
8313 (gnus-summary-refer-article message-id))
8314 (gnus-summary-refer-article message-id))))
8315 (group
8316 (gnus-button-fetch-group url)))))
8318 (defun gnus-button-patch (library line)
8319 "Visit an Emacs Lisp library LIBRARY on line LINE."
8320 (interactive)
8321 (let ((file (locate-library (file-name-nondirectory library))))
8322 (unless file
8323 (error "Couldn't find library %s" library))
8324 (find-file file)
8325 (goto-char (point-min))
8326 (forward-line (1- (string-to-number line)))))
8328 (defun gnus-button-handle-man (url)
8329 "Fetch a man page."
8330 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8331 (when (eq gnus-button-man-handler 'woman)
8333 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8334 (funcall gnus-button-man-handler url))
8336 (defun gnus-button-handle-info-url (url)
8337 "Fetch an info URL."
8338 (setq url (mm-subst-char-in-string ?+ ?\ url))
8339 (cond
8341 (gnus-info-find-node
8342 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
8343 "Gnus")
8344 ")" (gnus-url-unhex-string (match-string 2 url)))))
8346 (setq url
8347 (gnus-replace-in-string
8349 (gnus-info-find-node url))
8350 (t (error "Can't parse %s" url))))
8352 (defun gnus-button-handle-info-url-gnome (url)
8353 "Fetch GNOME style info URL."
8354 (setq url (mm-subst-char-in-string ?_ ?\ url))
8356 (gnus-info-find-node
8357 (concat "("
8358 (gnus-url-unhex-string
8359 (match-string 1 url))
8360 ")"
8361 (or (gnus-url-unhex-string
8362 (match-string 2 url))
8363 "Top")))
8364 (error "Can't parse %s" url)))
8366 (defun gnus-button-handle-info-url-kde (url)
8367 "Fetch KDE style info URL."
8368 (gnus-info-find-node (gnus-url-unhex-string url)))
8370 ;; (info) will autoload info.el
8371 (declare-function Info-menu "info" (menu-item &optional fork))
8372 (declare-function Info-index-next "info" (num))
8374 (defun gnus-button-handle-info-keystrokes (url)
8375 "Call `info' when pushing the corresponding URL button."
8376 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
8377 (let (node indx comma)
8378 (if (string-match
8383 url)
8384 (setq node (match-string 2 url)
8385 indx (match-string 3 url))
8386 (error "Can't parse %s" url))
8387 (info)
8388 (Info-directory)
8389 (Info-menu node)
8390 (when (> (length indx) 0)
8393 indx)
8394 (setq comma (match-string 2 indx))
8395 (setq indx (match-string 1 indx))
8396 (Info-index indx)
8397 (when comma
8398 (dotimes (i (with-temp-buffer
8399 (insert comma)
8400 ;; Note: the XEmacs version of `how-many' takes
8401 ;; no optional argument.
8402 (goto-char (point-min))
8403 (how-many ",")))
8404 (Info-index-next 1)))
8405 nil)))
8407 (autoload 'pgg-snarf-keys-region "pgg")
8408 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
8409 (declare-function pgg-display-output-buffer "pgg" (start end status))
8411 (defun gnus-button-openpgp (url)
8412 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
8413 (with-temp-buffer
8414 (mm-url-insert-file-contents-external url)
8415 (pgg-snarf-keys-region (point-min) (point-max))
8416 (pgg-display-output-buffer nil nil nil)))
8418 (defun gnus-button-message-id (message-id)
8419 "Fetch MESSAGE-ID."
8420 (with-current-buffer gnus-summary-buffer
8421 (gnus-summary-refer-article message-id)))
8423 (defun gnus-button-fetch-group (address &rest _ignore)
8424 "Fetch GROUP specified by ADDRESS."
8426 address)
8427 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
8428 ;; for nntp:// and news://
8429 (setq address (match-string 3 address)))
8430 (if (not (string-match "[:/]" address))
8431 ;; This is just a simple group url.
8432 (gnus-group-read-ephemeral-group address gnus-select-method)
8433 (if (not
8434 (string-match
8436 address))
8437 (error "Can't parse %s" address)
8438 (gnus-group-read-ephemeral-group
8439 (match-string 4 address)
8440 `(nntp ,(match-string 1 address)
8441 (nntp-address ,(match-string 1 address))
8442 (nntp-port-number ,(if (match-end 3)
8443 (match-string 3 address)
8444 "nntp")))
8445 nil nil nil
8446 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
8448 (defun gnus-url-parse-query-string (query &optional downcase)
8449 (let (retval pairs cur key val)
8450 (setq pairs (split-string query "&"))
8451 (while pairs
8452 (setq cur (car pairs)
8453 pairs (cdr pairs))
8454 (if (not (string-match "=" cur))
8455 nil ; Grace
8456 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
8457 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
8458 (if downcase
8459 (setq key (downcase key)))
8460 (setq cur (assoc key retval))
8461 (if cur
8462 (setcdr cur (cons val (cdr cur)))
8463 (setq retval (cons (list key val) retval)))))
8464 retval))
8466 (defun gnus-url-mailto (url)
8467 ;; Send mail to someone
8470 (setq url (substring url (match-beginning 1) nil)))
8471 (let* ((args (gnus-url-parse-query-string
8473 (substring url 1)
8475 (concat "to=" (match-string 1 url) "&"
8476 (match-string 2 url))
8477 (concat "to=" url)))))
8478 (subject (cdr-safe (assoc "subject" args)))
8479 func)
8480 (gnus-msg-mail)
8481 (while args
8482 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8483 (if (fboundp func)
8484 (funcall func)
8485 (message-position-on-field (caar args)))
8486 (insert (gnus-replace-in-string
8487 (mapconcat 'identity (reverse (cdar args)) ", ")
8489 (setq args (cdr args)))
8490 (if subject
8491 (message-goto-body)
8492 (message-goto-subject))))
8494 (defun gnus-button-embedded-url (address)
8495 "Activate ADDRESS with `browse-url'."
8496 (browse-url (gnus-strip-whitespace address)))
8498 ;;; Next/prev buttons in the article buffer.
8503 (defvar gnus-prev-page-map
8504 (let ((map (make-sparse-keymap)))
8505 (define-key map gnus-mouse-2 'gnus-button-prev-page)
8507 map))
8509 (defvar gnus-next-page-map
8510 (let ((map (make-sparse-keymap)))
8511 (define-key map gnus-mouse-2 'gnus-button-next-page)
8513 map))
8515 (defun gnus-insert-prev-page-button ()
8516 (let ((b (point)) e
8517 (inhibit-read-only t))
8518 (gnus-eval-format
8519 gnus-prev-page-line-format nil
8520 `(keymap ,gnus-prev-page-map
8521 gnus-prev t
8522 gnus-callback gnus-article-button-prev-page
8523 article-type annotation))
8524 (setq e (if (bolp)
8525 ;; Exclude a newline.
8526 (1- (point))
8527 (point)))
8528 (when gnus-article-button-face
8529 (gnus-overlay-put (gnus-make-overlay b e nil t)
8530 'face gnus-article-button-face))
8531 (widget-convert-button
8532 'link b e
8533 :action 'gnus-button-prev-page
8534 :button-keymap gnus-prev-page-map)))
8536 (defun gnus-button-next-page (&optional _args _more-args)
8537 "Go to the next page."
8538 (interactive)
8539 (let ((win (selected-window)))
8540 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8541 (gnus-article-next-page)
8542 (select-window win)))
8544 (defun gnus-button-prev-page (&optional _args _more-args)
8545 "Go to the prev page."
8546 (interactive)
8547 (let ((win (selected-window)))
8548 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8549 (gnus-article-prev-page)
8550 (select-window win)))
8552 (defun gnus-insert-next-page-button ()
8553 (let ((b (point)) e
8554 (inhibit-read-only t))
8555 (gnus-eval-format gnus-next-page-line-format nil
8556 `(keymap ,gnus-next-page-map
8557 gnus-next t
8558 gnus-callback gnus-article-button-next-page
8559 article-type annotation))
8560 (setq e (if (bolp)
8561 ;; Exclude a newline.
8562 (1- (point))
8563 (point)))
8564 (when gnus-article-button-face
8565 (gnus-overlay-put (gnus-make-overlay b e nil t)
8566 'face gnus-article-button-face))
8567 (widget-convert-button
8568 'link b e
8569 :action 'gnus-button-next-page
8570 :button-keymap gnus-next-page-map)))
8572 (defun gnus-article-button-next-page (_arg)
8573 "Go to the next page."
8574 (interactive "P")
8575 (let ((win (selected-window)))
8576 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8577 (gnus-article-next-page)
8578 (select-window win)))
8580 (defun gnus-article-button-prev-page (_arg)
8581 "Go to the prev page."
8582 (interactive "P")
8583 (let ((win (selected-window)))
8584 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8585 (gnus-article-prev-page)
8586 (select-window win)))
8588 (defvar gnus-decode-header-methods
8589 '(mail-decode-encoded-word-region)
8590 "List of methods used to decode headers.
8592 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8593 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8594 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8595 whose names match REGEXP.
8597 For example:
8599 mail-decode-encoded-word-region
8601 ")
8603 (defvar gnus-decode-header-methods-cache nil)
8605 (defun gnus-multi-decode-header (start end)
8606 "Apply the functions from `gnus-encoded-word-methods' that match."
8607 (unless (and gnus-decode-header-methods-cache
8608 (eq gnus-newsgroup-name
8609 (car gnus-decode-header-methods-cache)))
8610 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8611 (dolist (x gnus-decode-header-methods)
8612 (if (symbolp x)
8613 (nconc gnus-decode-header-methods-cache (list x))
8614 (if (and gnus-newsgroup-name
8615 (string-match (car x) gnus-newsgroup-name))
8616 (nconc gnus-decode-header-methods-cache
8617 (list (cdr x)))))))
8618 (let ((xlist gnus-decode-header-methods-cache))
8619 (pop xlist)
8620 (save-restriction
8621 (narrow-to-region start end)
8622 (while xlist
8623 (funcall (pop xlist) (point-min) (point-max))))))
8625 ;;;
8626 ;;; Treatment top-level handling.
8627 ;;;
8629 (defvar gnus-inhibit-article-treatments nil)
8631 ;; Dynamic variables.
8632 (defvar part-number) ;FIXME: Lacks a "gnus-" prefix.
8633 (defvar total-parts) ;FIXME: Lacks a "gnus-" prefix.
8634 (defvar gnus-treat-type)
8635 (defvar gnus-treat-condition)
8636 (defvar gnus-treat-length)
8638 (defun gnus-treat-article (condition
8639 &optional part-num total type)
8640 (let ((gnus-treat-condition condition)
8641 (part-number part-num)
8642 (total-parts total)
8643 (gnus-treat-type type)
8644 (gnus-treat-length (- (point-max) (point-min)))
8645 (alist gnus-treatment-function-alist)
8646 (article-goto-body-goes-to-point-min-p t)
8647 (treated-type
8648 (or (not type)
8649 (catch 'found
8650 (let ((list gnus-article-treat-types))
8651 (while list
8652 (when (string-match (pop list) type)
8653 (throw 'found t)))))))
8654 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8655 val)
8656 (gnus-run-hooks 'gnus-part-display-hook)
8657 (dolist (elem alist)
8658 (setq val
8659 (save-excursion
8660 (when (gnus-buffer-live-p gnus-summary-buffer)
8661 (set-buffer gnus-summary-buffer))
8662 (symbol-value (car elem))))
8663 (when (and (or (consp val)
8664 treated-type)
8665 (or (not gnus-inhibit-article-treatments)
8666 (eq gnus-treat-condition 'head))
8667 (gnus-treat-predicate val)
8668 (or (not (get (car elem) 'highlight))
8669 highlightp))
8670 (save-restriction
8671 (funcall (cadr elem)))))))
8673 (defun gnus-treat-predicate (val)
8674 (cond
8675 ((null val)
8676 nil)
8677 (gnus-treat-condition
8678 (eq gnus-treat-condition val))
8679 ((and (listp val)
8680 (stringp (car val)))
8681 (apply 'gnus-or (mapcar `(lambda (s)
8682 (string-match s ,(or gnus-newsgroup-name "")))
8683 val)))
8684 ((listp val)
8685 (let ((pred (pop val)))
8686 (cond
8687 ((eq pred 'or)
8688 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8689 ((eq pred 'and)
8690 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8691 ((eq pred 'not)
8692 (not (gnus-treat-predicate (car val))))
8693 ((eq pred 'typep)
8694 (equal (car val) gnus-treat-type))
8695 ((functionp pred)
8696 (funcall pred))
8697 (t
8698 (error "%S is not a valid predicate" pred)))))
8699 ((eq val t)
8700 t)
8701 ((eq val 'head)
8702 nil)
8703 ((eq val 'first)
8704 (eq part-number 1))
8705 ((eq val 'last)
8706 (eq part-number total-parts))
8707 ((numberp val)
8708 (< gnus-treat-length val))
8709 (t
8710 (error "%S is not a valid value" val))))
8712 (defun gnus-article-encrypt-body (protocol &optional n)
8713 "Encrypt the article body."
8714 (interactive
8715 (list
8716 (or gnus-article-encrypt-protocol
8717 (gnus-completing-read "Encrypt protocol"
8718 (mapcar 'car gnus-article-encrypt-protocol-alist)
8719 t))
8720 current-prefix-arg))
8721 ;; User might hit `K E' instead of `K e', so prompt once.
8722 (when (and gnus-article-encrypt-protocol
8723 gnus-novice-user)
8724 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8725 (error "Encrypt aborted")))
8726 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8727 (unless func
8728 (error "Can't find the encrypt protocol %s" protocol))
8729 (if (member gnus-newsgroup-name '("nndraft:delayed"
8730 "nndraft:drafts"
8731 "nndraft:queue"))
8732 (error "Can't encrypt the article in group %s"
8733 gnus-newsgroup-name))
8734 (gnus-summary-iterate n
8735 (with-current-buffer gnus-summary-buffer
8736 (let ((mail-parse-charset gnus-newsgroup-charset)
8737 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8738 (summary-buffer gnus-summary-buffer)
8739 references point)
8740 (gnus-set-global-variables)
8741 (when (gnus-group-read-only-p)
8742 (error "The current newsgroup does not support article encrypt"))
8743 (gnus-summary-show-article t)
8744 (setq references
8745 (or (mail-header-references gnus-current-headers) ""))
8746 (set-buffer gnus-article-buffer)
8747 (let* ((inhibit-read-only t)
8748 (headers
8749 (mapcar (lambda (field)
8750 (and (save-restriction
8751 (message-narrow-to-head)
8752 (goto-char (point-min))
8753 (search-forward field nil t))
8754 (prog2
8755 (message-narrow-to-field)
8756 (buffer-string)
8757 (delete-region (point-min) (point-max))
8758 (widen))))
8759 '("Content-Type:" "Content-Transfer-Encoding:"
8760 "Content-Disposition:"))))
8761 (message-narrow-to-head)
8762 (message-remove-header "MIME-Version")
8763 (goto-char (point-max))
8764 (setq point (point))
8765 (insert (apply 'concat headers))
8766 (widen)
8767 (narrow-to-region point (point-max))
8768 (let ((message-options message-options))
8769 (message-options-set 'message-sender user-mail-address)
8770 (message-options-set 'message-recipients user-mail-address)
8771 (message-options-set 'message-sign-encrypt 'not)
8772 (funcall func))
8773 (goto-char (point-min))
8775 (widen)
8776 (gnus-summary-edit-article-done
8777 references nil summary-buffer t))
8778 (when gnus-keep-backlog
8779 (gnus-backlog-remove-article
8780 (car gnus-article-current) (cdr gnus-article-current)))
8781 (gnus-flush-original-article-buffer)
8782 (when gnus-use-cache
8783 (gnus-cache-update-article
8784 (car gnus-article-current) (cdr gnus-article-current))))))))
8787 "The following specs can be used:
8788 %t The security MIME type
8789 %i Additional info
8790 %d Details
8791 %D Details if button is pressed")
8794 "The following specs can be used:
8795 %t The security MIME type
8796 %i Additional info
8797 %d Details
8798 %D Details if button is pressed")
8800 (defvar gnus-mime-security-button-line-format-alist
8801 '((?t gnus-tmp-type ?s)
8802 (?i gnus-tmp-info ?s)
8803 (?d gnus-tmp-details ?s)
8804 (?D gnus-tmp-pressed-details ?s)))
8806 (defvar gnus-mime-security-button-commands
8808 (undefined "v")
8809 (undefined "t")
8810 (undefined "C")
8811 (gnus-mime-security-save-part "o" "Save...")
8812 (undefined "\C-o")
8813 (undefined "r")
8814 (undefined "d")
8815 (undefined "c")
8816 (undefined "i")
8817 (undefined "E")
8818 (undefined "e")
8819 (undefined "p")
8820 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8821 (undefined ".")))
8823 (defvar gnus-mime-security-button-map
8824 (let ((map (make-sparse-keymap)))
8825 (define-key map gnus-mouse-2 'gnus-article-push-button)
8826 (define-key map gnus-down-mouse-3 'gnus-mime-security-button-menu)
8827 (dolist (c gnus-mime-security-button-commands)
8828 (define-key map (cadr c) (car c)))
8829 map))
8831 (easy-menu-define
8832 gnus-mime-security-button-menu gnus-mime-security-button-map
8833 "Security button menu."
8834 `("Security Part"
8835 ,@(delq nil
8836 (mapcar (lambda (c)
8837 (unless (eq (car c) 'undefined)
8838 (vector (caddr c) (car c) :active t)))
8839 gnus-mime-security-button-commands))))
8841 (defun gnus-mime-security-button-menu (event prefix)
8842 "Construct a context-sensitive menu of security commands."
8844 (save-window-excursion
8845 (let ((pos (event-start event)))
8846 (select-window (posn-window pos))
8847 (goto-char (posn-point pos))
8848 (gnus-article-check-buffer)
8849 (popup-menu gnus-mime-security-button-menu nil prefix))))
8851 (defvar gnus-mime-security-details-buffer nil)
8853 (defvar gnus-mime-security-button-pressed nil)
8855 (defvar gnus-mime-security-show-details-inline t
8856 "If non-nil, show details in the article buffer.")
8858 (defun gnus-mime-security-verify-or-decrypt (handle)
8859 (mm-remove-parts (cdr handle))
8860 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8861 point (inhibit-read-only t))
8862 (if region
8863 (goto-char (car region)))
8864 (setq point (point))
8865 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8866 (let* ((mm-verify-option 'known)
8867 (mm-decrypt-option 'known)
8868 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8869 (unless (eq nparts (cdr handle))
8870 (mm-destroy-parts (cdr handle))
8871 (setcdr handle nparts))))
8872 (gnus-mime-display-security handle)
8873 (when region
8874 (delete-region (point) (cdr region))
8875 (set-marker (car region) nil)
8876 (set-marker (cdr region) nil))
8877 (goto-char point)))
8879 (defun gnus-mime-security-show-details (handle)
8880 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8881 (if (not details)
8882 (gnus-message 5 "No details.")
8883 (if gnus-mime-security-show-details-inline
8884 (let ((gnus-mime-security-button-pressed
8885 (not (get-text-property (point) 'gnus-mime-details)))
8886 (gnus-mime-security-button-line-format
8887 (get-text-property (point) 'gnus-line-format))
8888 (inhibit-read-only t))
8889 (forward-char -1)
8890 (while (eq (get-text-property (point) 'gnus-line-format)
8891 gnus-mime-security-button-line-format)
8892 (forward-char -1))
8893 (forward-char)
8894 (save-restriction
8895 (narrow-to-region (point) (point))
8896 (gnus-insert-mime-security-button handle))
8897 (delete-region (point)
8898 (or (text-property-not-all
8899 (point) (point-max)
8900 'gnus-line-format
8901 gnus-mime-security-button-line-format)
8902 (point-max))))
8903 ;; Not inlined.
8904 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8905 (with-current-buffer gnus-mime-security-details-buffer
8906 (erase-buffer)
8907 t)
8908 (setq gnus-mime-security-details-buffer
8909 (gnus-get-buffer-create "*MIME Security Details*")))
8910 (with-current-buffer gnus-mime-security-details-buffer
8911 (insert details)
8912 (goto-char (point-min)))
8913 (pop-to-buffer gnus-mime-security-details-buffer)))))
8915 (defun gnus-mime-security-press-button (handle)
8916 (save-excursion
8917 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8918 (gnus-mime-security-show-details handle)
8919 (gnus-mime-security-verify-or-decrypt handle))))
8921 (defun gnus-insert-mime-security-button (handle &optional _displayed)
8922 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8923 (gnus-tmp-type
8924 (concat
8925 (or (nth 2 (assoc protocol mm-verify-function-alist))
8926 (nth 2 (assoc protocol mm-decrypt-function-alist))
8927 "Unknown")
8928 (if (equal (car handle) "multipart/signed")
8929 " Signed" " Encrypted")
8930 " Part"))
8931 (gnus-tmp-info
8932 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8933 "Undecided"))
8934 (gnus-tmp-details
8935 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8936 gnus-tmp-pressed-details
8937 b e)
8938 (setq gnus-tmp-details
8939 (if gnus-tmp-details
8941 ""))
8942 (setq gnus-tmp-pressed-details
8943 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8944 (unless (bolp)
8946 (setq b (point))
8947 (gnus-eval-format
8948 gnus-mime-security-button-line-format
8949 gnus-mime-security-button-line-format-alist
8950 `(keymap ,gnus-mime-security-button-map
8951 gnus-callback gnus-mime-security-press-button
8952 gnus-line-format ,gnus-mime-security-button-line-format
8953 gnus-mime-details ,gnus-mime-security-button-pressed
8954 article-type annotation
8955 gnus-data ,handle))
8956 (setq e (if (bolp)
8957 ;; Exclude a newline.
8958 (1- (point))
8959 (point)))
8960 (when gnus-article-button-face
8961 (gnus-overlay-put (gnus-make-overlay b e nil t)
8962 'face gnus-article-button-face))
8963 (widget-convert-button
8964 'link b e
8965 :mime-handle handle
8966 :action 'gnus-widget-press-button
8967 :button-keymap gnus-mime-security-button-map
8968 :help-echo
8969 (lambda (_widget)
8970 ;; Needed to properly clear the message due to a bug in
8971 ;; wid-edit (XEmacs only).
8972 (when (boundp 'help-echo-owns-message)
8973 (setq help-echo-owns-message t))
8974 (format
8975 "%S: show detail; %S: more options"
8976 (aref gnus-mouse-2 0)
8977 (aref gnus-down-mouse-3 0))))))
8979 (defun gnus-mime-display-security (handle)
8980 (save-restriction
8981 (narrow-to-region (point) (point))
8982 (unless (gnus-unbuttonized-mime-type-p (car handle))
8983 (gnus-insert-mime-security-button handle))
8984 (gnus-mime-display-part (cadr handle))
8985 (unless (bolp)
8987 (unless (gnus-unbuttonized-mime-type-p (car handle))
8988 (let ((gnus-mime-security-button-line-format
8989 gnus-mime-security-button-end-line-format))
8990 (gnus-insert-mime-security-button handle)))
8991 (mm-set-handle-multipart-parameter
8992 handle 'gnus-region (cons (point-min-marker) (point-max-marker)))
8993 (goto-char (point-max))))
8995 (defun gnus-mime-security-run-function (function)
8996 "Run FUNCTION with the security part under point."
8997 (gnus-article-check-buffer)
8998 (let ((data (get-text-property (point) 'gnus-data))
8999 buffer handle)
9000 (when (and (stringp (car-safe data))
9001 (setq buffer (mm-handle-multipart-original-buffer data))
9002 (setq handle (cadr data)))
9003 (if (bufferp (mm-handle-buffer handle))
9004 (progn
9005 (setq handle (cons buffer (copy-sequence (cdr handle))))
9006 (mm-handle-set-undisplayer handle nil))
9007 (setq handle (mm-make-handle
9008 buffer
9009 (mm-handle-multipart-ctl-parameter handle 'protocol)
9010 nil nil nil nil nil nil)))
9011 (funcall function handle))))
9013 (defun gnus-mime-security-save-part ()
9014 "Save the security part under point."
9015 (interactive)
9016 (gnus-mime-security-run-function 'mm-save-part))
9018 (defun gnus-mime-security-pipe-part ()
9019 "Pipe the security part under point to a process."
9020 (interactive)
9021 (gnus-mime-security-run-function 'mm-pipe-part))
9023 (gnus-ems-redefine)
9025 (provide 'gnus-art)
9027 (run-hooks 'gnus-art-load-hook)
9029 ;;; gnus-art.el ends here