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1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996-2014 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:
55 "Article display."
60 "Treating article parts."
65 "Hiding article parts."
70 "Article highlighting."
76 "Article signatures."
81 "Article headers."
86 "Special commands on articles."
91 "Fontisizing articles."
96 "Saving articles."
101 "Worshiping the MIME wonder."
106 "Pushable buttons in the article buffer."
111 "Other article options."
160 "*All headers that start with this regexp will be hidden.
161 This variable can also be a list of regexps of headers to be ignored.
162 If `gnus-visible-headers' is non-nil, this variable will be ignored."
168 "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^[BGF]?Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Mail-Followup-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From:"
169 "*All headers that do not match this regexp will be hidden.
170 This variable can also be a list of regexp of headers to remain visible.
171 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
178 regexp)
180 regexp)
186 "*This variable is a list of regular expressions.
187 If it is non-nil, headers that match the regular expressions will
188 be placed first in the article buffer in the sequence specified by
189 this list."
194 "Headers that are only to be displayed if they have interesting data.
195 Possible values in this list are:
197 'empty Headers with no content.
198 'newsgroups Newsgroup identical to Gnus group.
199 'to-address To identical to To-address.
200 'to-list To identical to To-list.
201 'cc-list CC identical to To-list.
202 'followup-to Followup-to identical to Newsgroups.
203 'reply-to Reply-to identical to From.
204 'date Date less than four days old.
205 'long-to To and/or Cc longer than 1024 characters.
206 'many-to Multiple To and/or Cc."
220 "Skip over text that is not worth reading.
221 By default, if you set this t, then Gnus will display citations and
222 signatures, but will never scroll down to show you a page consisting
223 only of boring text. Boring text is controlled by
224 `gnus-article-boring-faces'."
230 "Regexp matching signature separator.
231 This can also be a list of regexps. In that case, it will be checked
232 from head to tail looking for a separator. Searches will be done from
233 the end of the buffer."
240 "Provide a limit to what is considered a signature.
241 If it is a number, no signature may not be longer (in characters) than
242 that number. If it is a floating point number, no signature may be
243 longer (in lines) than that number. If it is a function, the function
244 will be called without any parameters, and if it returns nil, there is
245 no signature in the buffer. If it is a string, it will be used as a
246 regexp. If it matches, the text in question is not a signature.
248 This can also be a list of the above values."
252 function
257 "Property list to use for hiding text."
261 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
262 ;; frames in a session.
267 'gnus-display-x-face-in-from
268 "{ echo \
269 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
272 'gnus-display-x-face-in-from
273 "{ echo \
274 '/* Format_version=1, Width=48, Height=48, Depth=1, Valid_bits_per_item=16 */'\
276 "*String or function to be executed to display an X-Face header.
277 If it is a string, the command will be executed in a sub-shell
278 asynchronously. The compressed face will be piped to this command."
281 function)
287 "Regexp matching posters whose face shouldn't be shown automatically."
292 "Banner alist for stripping.
293 For example,
294 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
300 banner
301 :variable-document
302 "Alist of regexps (to match group names) and banner."
303 :variable-group gnus-article-washing
304 :parameter-type
306 :value nil
309 regexp
311 :parameter-document
312 "If non-nil, specify how to remove `banners' from articles.
314 Symbol `signature' means to remove signatures delimited by
315 `gnus-signature-separator'. Any other symbol is used to look up a
316 regular expression to match the banner in `gnus-article-banner-alist'.
317 A string is used as a regular expression to match the banner
321 "Alist of mail addresses and banners.
322 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
323 to match a mail address in the From: header, BANNER is one of a symbol
324 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
325 If ADDRESS matches author's mail address, it will remove things like
326 advertisements. For example:
329 "
336 regexp
351 2
354 value)))
362 pattern)
367 value))))
385 types))
387 ;; several times seen it triggered by normal text. --Stef
388 ;; Miles suggests that this form is sometimes used but for italics,
389 ;; so maybe we should map it to `italic'.
390 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
391 ;; 2 3 gnus-emphasis-strikethru)
394 "*Alist that says how to fontify certain phrases.
395 Each item looks like this:
399 The first element is a regular expression to be matched. The second
400 is a number that says what regular expression grouping used to find
401 the entire emphasized word. The third is a number that says what
402 regexp grouping should be displayed and highlighted. The fourth
403 is the face used for highlighting."
404 :type
411 :value-create
419 widget
420 :value
423 regexp
426 face)
434 face)))
440 value)))
444 "A regexp to describe whitespace which should not be emphasized.
446 The former avoids underlining of leading and trailing whitespace,
447 and the latter avoids underlining any whitespace at all."
453 "Face used for displaying strong emphasized text (*word*)."
457 "Face used for displaying italic emphasized text (/word/)."
461 "Face used for displaying underlined emphasized text (_word_)."
465 "Face used for displaying underlined bold emphasized text (_*word*_)."
469 "Face used for displaying underlined italic emphasized text (_/word/_)."
473 "Face used for displaying bold italic emphasized text (/*word*/)."
478 "Face used for displaying underlined bold italic emphasized text.
479 Example: (_/*word*/_)."
485 "Face used for displaying strike-through text (-word-)."
490 "Face used for displaying highlighted words."
494 "Format for display of Date headers in article bodies.
495 See `format-time-string' for the possible values.
497 The variable can also be function, which should return a complete Date
498 header. The function is called with one argument, the time, which can
499 be fed to `format-time-string'."
505 "*If non-nil, don't remove any headers before saving.
506 This will be overridden by the `:headers' property that the symbol of
507 the saver function, which is specified by `gnus-default-article-saver',
508 might have."
513 "*This variable says how much prompting is to be done when saving articles.
514 If it is nil, no prompting will be done, and the articles will be
515 saved to the default files. If this variable is `always', each and
516 every article that is saved will be preceded by a prompt, even when
517 saving large batches of articles. If this variable is neither nil not
518 `always', there the user will be prompted once for a file name for
519 each invocation of the saving commands."
526 "Headers to keep if `gnus-save-all-headers' is nil.
527 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
528 If that variable is nil, however, all headers that match this regexp
529 will be kept while the rest will be deleted before saving. This and
530 `gnus-save-all-headers' will be overridden by the `:headers' property
531 that the symbol of the saver function, which is specified by
532 `gnus-default-article-saver', might have."
536 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
538 "A function to save articles in your favorite format.
539 The function will be called by way of the `gnus-summary-save-article'
540 command, and friends such as `gnus-summary-save-article-rmail'.
542 Gnus provides the following functions:
544 * gnus-summary-save-in-rmail (Rmail format)
545 * gnus-summary-save-in-mail (Unix mail format)
546 * gnus-summary-save-in-folder (MH folder)
547 * gnus-summary-save-in-file (article format)
548 * gnus-summary-save-body-in-file (article body)
549 * gnus-summary-save-in-vm (use VM's folder format)
550 * gnus-summary-write-to-file (article format -- overwrite)
551 * gnus-summary-write-body-to-file (article body -- overwrite)
552 * gnus-summary-save-in-pipe (article format)
554 The symbol of each function may have the following properties:
556 * :decode
557 The value non-nil means save decoded articles. This is meaningful
558 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
559 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
560 `gnus-summary-save-in-pipe'.
562 * :function
563 The value specifies an alternative function which appends, not
564 overwrites, articles to a file. This implies that when saving many
565 articles at a time, `gnus-prompt-before-saving' is bound to t and all
566 articles are saved in a single file. This is meaningful only with
567 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
569 * :headers
570 The value specifies the symbol of a variable of which the value
571 specifies headers to be saved. If it is omitted,
572 `gnus-save-all-headers' and `gnus-saved-headers' control what
573 headers should be saved."
591 "Coding system used to save decoded articles to a file.
593 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
594 which can safely encode any characters in text. This is used by the
595 commands including:
597 * gnus-summary-save-article-file
598 * gnus-summary-save-article-body-file
599 * gnus-summary-write-article-file
600 * gnus-summary-write-article-body-file
602 and the functions to which you may set `gnus-default-article-saver':
604 * gnus-summary-save-in-file
605 * gnus-summary-save-body-in-file
606 * gnus-summary-write-to-file
607 * gnus-summary-write-body-to-file
609 Those commands and functions save just text displayed in the article
610 buffer to a file if the value of this variable is non-nil. Note that
611 buttonized MIME parts will be lost in a saved file in that case.
612 Otherwise, raw articles will be saved."
627 "A function generating a file name to save articles in Rmail format.
628 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
633 "A function generating a file name to save articles in Unix mail format.
634 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
639 "A function generating a file name to save articles in MH folder.
640 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
645 "A function generating a file name to save articles in article format.
646 The function is called with NEWSGROUP, HEADERS, and optional
647 LAST-FILE."
654 "*Variable used to suggest where articles are to be saved.
655 For instance, if you would like to save articles related to Gnus in
657 you could set this variable to something like:
662 This variable is an alist where the key is the match and the
663 value is a list of possible files to save in if the match is
664 non-nil.
666 If the match is a string, it is used as a regexp match on the
667 article. If the match is a symbol, that symbol will be funcalled
668 from the buffer of the article to be saved with the newsgroup as the
669 parameter. If it is a list, it will be evalled in the same buffer.
671 If this form or function returns a string, this string will be used as a
672 possible file name; and if it returns a non-nil list, that list will be
673 used as possible file names."
680 "*Regexp describing what to use as article page delimiters.
682 beginning of a line."
687 "*The format specification for the article mode line.
688 See `gnus-summary-mode-line-format' for a closer description.
690 The following additional specs are available:
692 %w The article washing status.
693 %m The number of MIME parts in the article."
699 "*A hook for Gnus article mode."
704 ;; Extracted from gnus-xmas-define in order to preserve user settings
707 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
711 "*Hook run after the creation of the article mode menu."
716 "*A hook called after an article has been prepared in the article buffer."
721 "List of headers to be removed when copying an article.
722 Each element is a regular expression."
732 "Face used for highlighting a button in the article buffer."
736 "Face used for highlighting buttons in the article buffer.
738 An article button is a piece of text that you can activate by pressing
739 `RET' or `mouse-2' above it."
744 "Face used for mouse highlighting in the article buffer.
746 Article buttons will be displayed in this face when the cursor is
747 above them."
752 "Face used for highlighting a signature in the article buffer.
753 Obsolete; use the face `gnus-signature' for customizations instead."
761 "Face used for highlighting a signature in the article buffer."
764 ;; backward-compatibility alias
777 "Face used for displaying from headers."
780 ;; backward-compatibility alias
793 "Face used for displaying subject headers."
796 ;; backward-compatibility alias
809 "Face used for displaying newsgroups headers.
810 In the default setup this face is only used for crossposted
811 articles."
814 ;; backward-compatibility alias
827 "Face used for displaying header names."
830 ;; backward-compatibility alias
845 ;; backward-compatibility alias
854 "*Controls highlighting of article headers.
856 An alist of the form (HEADER NAME CONTENT).
858 HEADER is a regular expression which should match the name of a
859 header and NAME and CONTENT are either face names or nil.
861 The name of each header field will be displayed using the face
862 specified by the first element in the list where HEADER matches
863 the header name and NAME is non-nil. Similarly, the content will
864 be displayed by the first non-nil matching CONTENT face."
879 "Alist of image types and properties applied to Face and X-Face images.
880 Here are examples:
882 ;; Specify the altitude of Face images in the From header.
883 \(setq gnus-face-properties-alist
884 '((pbm . (:face gnus-x-face :ascent 80))
885 (png . (:ascent 80))))
887 ;; Show Face images as pressed buttons.
888 \(setq gnus-face-properties-alist
889 '((pbm . (:face gnus-x-face :relief -2))
890 (png . (:relief -2))))
892 See the manual for the valid properties for various image types.
893 Currently, `pbm' is used for X-Face images and `png' is used for Face
894 images in Emacs. Only the `:face' property is effective on the `xface'
895 image type in XEmacs if it is built with the libcompface library."
902 article-decode-group-name article-decode-idna-rhs)
903 "*Hook run to decode charsets in articles."
908 "Function to display MIME articles."
941 "List of MIME types that should be ignored by Gnus."
947 "List of MIME types that should not be given buttons when rendered inline.
948 See also `gnus-buttonized-mime-types' which may override this variable.
949 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
955 "List of MIME types that should be given buttons when rendered inline.
956 If set, this variable overrides `gnus-unbuttonized-mime-types'.
957 To see e.g. security buttons you could set this to
959 this list to display radio buttons that allow you to choose one of two
960 media types those mails include. See also `mm-discouraged-alternatives'.
961 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
967 "If non-nil, all MIME parts get buttons.
968 When nil (the default value), then some MIME parts do not get buttons,
969 as described by the variables `gnus-buttonized-mime-types' and
970 `gnus-unbuttonized-mime-types'."
976 "String used to delimit header and body.
977 This variable is used by `gnus-article-treat-body-boundary' which can
978 be controlled by `gnus-treat-body-boundary'."
982 string))
986 "Defines the location of the faces database.
987 For information on obtaining this database of pretty pictures, please
988 see http://www.cs.indiana.edu/picons/ftp/index.html"
997 "Say whether picons are installed on your machine."
1002 installed))
1005 "Function called with a MIME handle as the argument.
1006 This is meant for people who want to do something automatic based
1007 on parts -- for instance, adding Vcard info to a database."
1010 function))
1013 "An alist of MIME types to functions to display them."
1019 "A list of Date header formats to display.
1020 Valid formats are `ut' (universal time), `local' (local time
1021 zone), `english' (readable English), `lapsed' (elapsed time),
1022 `combined-lapsed' (both the original date and the elapsed time),
1023 `original' (the original date header), `iso8601' (ISO8601
1024 format), and `user-defined' (a user-defined format defined by the
1025 `gnus-article-time-format' variable).
1027 You have as many date headers as you want in the article buffer.
1028 Some of these headers are updated automatically. See
1029 `gnus-article-update-date-headers' for details."
1043 "A number that says how often to update the date header (in seconds).
1044 If nil, don't update it at all."
1049 integer))
1052 "Function called with a MIME handle as the argument.
1053 This is meant for people who want to view first matched part.
1054 For `undisplayed-alternative' (default), the first undisplayed
1055 part or alternative part is used. For `undisplayed', the first
1056 undisplayed part is used. For a function, the first part which
1057 the function return t is used. For nil, the first part is
1058 used."
1081 "An alist of actions that run on the MIME attachment."
1087 "Advance to next MIME part when deleting or stripping parts.
1089 When 0, point will be placed on the same part as before. When
1090 positive (negative), move point forward (backwards) this many
1091 parts. When nil, redisplay article."
1097 integer))
1099 ;;;
1100 ;;; The treatment variables
1101 ;;;
1128 "Highlight the signature.
1129 Valid values are nil, t, `head', `first', `last', an integer or a
1130 predicate. See Info node `(gnus)Customizing Articles'."
1137 "Add buttons.
1138 Valid values are nil, t, `head', `first', `last', an integer or a
1139 predicate. See Info node `(gnus)Customizing Articles'."
1146 "Add buttons to the head.
1147 Valid values are nil, t, `head', `first', `last', an integer or a
1148 predicate. See Info node `(gnus)Customizing Articles'."
1155 "Display dates according to the `gnus-article-date-headers' variable.
1156 Valid values are nil, t, `head', `first', `last', an integer or a
1157 predicate. See Info node `(gnus)Customizing Articles'."
1164 "Emphasize text.
1165 Valid values are nil, t, `head', `first', `last', an integer or a
1166 predicate. See Info node `(gnus)Customizing Articles'."
1173 "Remove carriage returns.
1174 Valid values are nil, t, `head', `first', `last', an integer or a
1175 predicate. See Info node `(gnus)Customizing Articles'."
1182 "Remove newlines from within URLs.
1183 Valid values are nil, t, `head', `first', `last', an integer or a
1184 predicate. See Info node `(gnus)Customizing Articles'."
1191 "Remove leading whitespace in headers.
1192 Valid values are nil, t, `head', `first', `last', an integer or a
1193 predicate. See Info node `(gnus)Customizing Articles'."
1200 "Hide headers.
1201 Valid values are nil, t, `head', `first', `last', an integer or a
1202 predicate. See Info node `(gnus)Customizing Articles'."
1208 "Hide boring headers.
1209 Valid values are nil, t, `head', `first', `last', an integer or a
1210 predicate. See Info node `(gnus)Customizing Articles'."
1216 "Hide the signature.
1217 Valid values are nil, t, `head', `first', `last', an integer or a
1218 predicate. See Info node `(gnus)Customizing Articles'."
1224 "Fill the article.
1225 Valid values are nil, t, `head', `first', `last', an integer or a
1226 predicate. See Info node `(gnus)Customizing Articles'."
1232 "Hide cited text.
1233 Valid values are nil, t, `head', `first', `last', an integer or a
1234 predicate. See Info node `(gnus)Customizing Articles'.
1236 See `gnus-article-highlight-citation' for variables used to
1237 control what it hides."
1243 "Hide cited text according to certain conditions.
1244 Valid values are nil, t, `head', `first', `last', an integer or a
1245 predicate. See Info node `(gnus)Customizing Articles'.
1247 See `gnus-cite-hide-percentage' and `gnus-cite-hide-absolute' for
1248 how to control what it hides."
1254 "Strip list identifiers from `gnus-list-identifiers`.
1255 Valid values are nil, t, `head', `first', `last', an integer or a
1256 predicate. See Info node `(gnus)Customizing Articles'."
1263 list-identifier
1264 :variable-document
1265 "Alist of regexps and correspondent identifiers."
1266 :variable-group gnus-article-washing
1267 :parameter-type
1269 :value nil
1271 regexp
1273 :parameter-document
1274 "If non-nil, specify how to remove `identifiers' from articles' subject.
1276 Any symbol is used to look up a regular expression to match the
1277 banner in `gnus-list-identifiers'. A string is used as a regular
1284 "Strip PEM signatures.
1285 Valid values are nil, t, `head', `first', `last', an integer or a
1286 predicate. See Info node `(gnus)Customizing Articles'."
1292 "Strip banners from articles.
1293 The banner to be stripped is specified in the `banner' group parameter.
1294 Valid values are nil, t, `head', `first', `last', an integer or a
1295 predicate. See Info node `(gnus)Customizing Articles'."
1301 "Highlight the headers.
1302 Valid values are nil, t, `head', `first', `last', an integer or a
1303 predicate. See Info node `(gnus)Customizing Articles'."
1310 "Highlight cited text.
1311 Valid values are nil, t, `head', `first', `last', an integer or a
1312 predicate. See Info node `(gnus)Customizing Articles'."
1319 "Strip the X-No-Archive header line from the beginning of the body.
1320 Valid values are nil, t, `head', `first', `last', an integer or a
1321 predicate. See Info node `(gnus)Customizing Articles'."
1328 "Strip trailing blank lines.
1329 Valid values are nil, t, `head', `first', `last', an integer or a
1330 predicate. See Info node `(gnus)Customizing Articles'.
1332 When set to t, it also strips trailing blanks in all MIME parts.
1333 Consider to use `last' instead."
1339 "Strip leading blank lines.
1340 Valid values are nil, t, `head', `first', `last', an integer or a
1341 predicate. See Info node `(gnus)Customizing Articles'.
1343 When set to t, it also strips trailing blanks in all MIME parts."
1349 "Strip multiple blank lines.
1350 Valid values are nil, t, `head', `first', `last', an integer or a
1351 predicate. See Info node `(gnus)Customizing Articles'."
1357 "Unfold folded header lines.
1358 Valid values are nil, t, `head', `first', `last', an integer or a
1359 predicate. See Info node `(gnus)Customizing Articles'."
1366 "If non-nil, allow unfolding headers even if the header is long.
1367 If it is a regexp, only long headers matching this regexp are unfolded.
1368 If it is t, all long headers are unfolded.
1370 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1378 "Fold headers.
1379 Valid values are nil, t, `head', `first', `last', an integer or a
1380 predicate. See Info node `(gnus)Customizing Articles'."
1387 "Fold the Newsgroups and Followup-To headers.
1388 Valid values are nil, t, `head', `first', `last', an integer or a
1389 predicate. See Info node `(gnus)Customizing Articles'."
1396 "Treat overstrike highlighting.
1397 Valid values are nil, t, `head', `first', `last', an integer or a
1398 predicate. See Info node `(gnus)Customizing Articles'."
1405 "Treat ANSI SGR control sequences.
1406 Valid values are nil, t, `head', `first', `last', an integer or a
1407 predicate. See Info node `(gnus)Customizing Articles'."
1423 ;; shell-command-to-string may signal an error, e.g. if
1424 ;; shell-file-name is not found.
1427 "Display X-Face headers.
1428 Valid values are nil and `head'.
1429 See Info node `(gnus)Customizing Articles' and Info node
1430 `(gnus)X-Face' for details."
1435 :type gnus-article-treat-head-custom
1438 symbol
1440 value)
1443 ** gnus-treat-display-xface is an obsolete variable;\
1448 ** gnus-treat-display-xface is an obsolete variable;\
1452 value)))))
1459 "Display Face headers.
1460 Valid values are nil, t, `head', `first', `last', an integer or a
1461 predicate. See Info node `(gnus)Customizing Articles' and Info
1462 node `(gnus)Face' for details."
1471 "Display smileys.
1472 Valid values are nil, t, `head', `first', `last', an integer or a
1473 predicate. See Info node `(gnus)Customizing Articles' and Info
1474 node `(gnus)Smileys' for details."
1486 "Display picons in the From header.
1487 Valid values are nil, t, `head', `first', `last', an integer or a
1488 predicate. See Info node `(gnus)Customizing Articles' and Info
1489 node `(gnus)Picons' for details."
1502 "Display picons in To and Cc headers.
1503 Valid values are nil, t, `head', `first', `last', an integer or a
1504 predicate. See Info node `(gnus)Customizing Articles' and Info
1505 node `(gnus)Picons' for details."
1518 "Display picons in the Newsgroups and Followup-To headers.
1519 Valid values are nil, t, `head', `first', `last', an integer or a
1520 predicate. See Info node `(gnus)Customizing Articles' and Info
1521 node `(gnus)Picons' for details."
1531 "Display gravatars in the From header.
1532 Valid values are nil, t, `head', `first', `last', an integer or a
1533 predicate. See Info node `(gnus)Customizing Articles' and Info
1534 node `(gnus)Gravatars' for details."
1544 "Display gravatars in To and Cc headers.
1545 Valid values are nil, t, `head', `first', `last', an integer or a
1546 predicate. See Info node `(gnus)Customizing Articles' and Info
1547 node `(gnus)Gravatars' for details."
1558 gnus-treat-mail-picon
1559 gnus-treat-from-picon
1560 gnus-treat-from-gravatar
1561 gnus-treat-mail-gravatar)
1562 ;; If there's much decoration, the user might prefer a boundary.
1563 'head
1564 nil)
1565 "Draw a boundary at the end of the headers.
1566 Valid values are nil and `head'.
1567 See Info node `(gnus)Customizing Articles' for details."
1574 "Capitalize sentence-starting words.
1575 Valid values are nil, t, `head', `first', `last', an integer or a
1576 predicate. See Info node `(gnus)Customizing Articles'."
1583 "Format as HTML.
1584 Valid values are nil, t, `head', `first', `last', an integer or a
1585 predicate. See Info node `(gnus)Customizing Articles'."
1592 "Fill long lines.
1593 Valid values are nil, t, `head', `first', `last', an integer or a
1594 predicate. See Info node `(gnus)Customizing Articles'."
1601 "Verify X-PGP-Sig.
1602 To automatically treat X-PGP-Sig, set it to head.
1603 Valid values are nil, t, `head', `first', `last', an integer or a
1604 predicate. See Info node `(gnus)Customizing Articles'."
1614 ;; Set to nil if more than one protocol added to
1615 ;; gnus-article-encrypt-protocol-alist.
1617 "The protocol used for encrypt articles.
1626 "Whether IDNA decoding of headers is used when viewing messages.
1627 This requires GNU Libidn, and by default only enabled if it is found."
1633 "If non-nil, allow scrolling the article buffer even when there no more text."
1639 "Non-nil means inhibit displaying of images inline in the article body."
1645 "Images that have URLs matching this regexp will be blocked.
1646 This can also be a function to be evaluated. If so, it will be
1647 called with the group name as the parameter, and should return a
1648 regexp."
1653 ;;; Internal variables
1692 gnus-article-remove-trailing-blank-lines)
1694 gnus-article-strip-leading-blank-lines)
1696 gnus-article-strip-multiple-blank-lines)
1718 ;; This causes the citation match run O(2^n).
1719 ;; (modify-syntax-entry ?- "w" table)
1722 ;; make M-. in article buffers work for `foo' strings
1725 table)
1726 "Syntax table used in article mode buffers.
1737 ;;; Macros for dealing with the article buffer.
1761 "Go to HEADER, which is a regular expression."
1765 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1773 "Remove hidden text properties from region between B and E."
1780 "Hide text of TYPE between B and E."
1786 "Unhide text of TYPE between B and E."
1795 "Delete text of TYPE in the current buffer."
1799 ;; Remove MIME buttons associated with multipart/alternative parts.
1807 t))
1818 "Delete all invisible text in the current buffer."
1827 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1835 i))
1838 "Hide unwanted headers and possibly sort them as well."
1840 ;; This function might be inhibited.
1847 ignored visible beg)
1849 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1850 ;; group parameters, so we should go to the summary buffer.
1857 gnus-ignored-headers)
1860 gnus-ignored-headers
1863 gnus-visible-headers)
1867 gnus-visible-headers
1871 ;; First we narrow to just the headers.
1873 ;; Hide any "From " lines at the beginning of (mail) articles.
1878 ;; Then treat the rest of the header lines.
1879 ;; Then we use the two regular expressions
1880 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1881 ;; select which header lines is to remain visible in the
1882 ;; article buffer.
1885 ;; Mark the rank of the header.
1897 ;; We delete the unwanted headers.
1904 "Toggle hiding of headers that aren't very interesting.
1905 If given a negative prefix, always show; if given a positive prefix,
1906 always hide."
1918 ;; Hide empty headers.
1930 ;; Hide boring Newsgroups header.
1936 gnus-newsgroup-name
1948 ;; only one address in To
1950 to-address)))
1961 ;; only one address in To
1963 to-list)))
1974 ;; only one address in CC
1976 to-list)))
1991 from reply-to
2005 ;; If date in `gnus-article-buffer' is localized
2006 ;; (`gnus-treat-date-user-defined'),
2007 ;; `days-between' might fail.
2065 "Make all header lines 40 characters long."
2068 column)
2075 gnus-article-normalized-header-length)
2079 ? )))
2088 ;; Do nothing.
2089 ))
2093 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2094 Note that this function guesses whether a character is a sm*rtq**t* or
2095 not, so it should only be used interactively.
2097 Sm*rtq**t*s are M****s***'s unilateral extension to the
2098 iso-8859-1 character map in an attempt to provide more quoting
2100 you're expecting some kind of apostrophe or quotation mark, then
2101 try this wash."
2108 "Translate many Unicode characters into their ASCII equivalents."
2121 replace props)
2131 props)
2135 "Translate all string in the body of the article according to MAP.
2155 "Translate overstrikes into bold text."
2163 ;; We do the boldification/underlining by hiding the
2164 ;; overstrikes and putting the proper text property
2165 ;; on the letters.
2181 "Translate ANSI SGR control sequences into overlays or extents."
2189 "Unfold folded message headers.
2190 Only the headers that fit into the current window width will be
2191 unfolded."
2203 header)))))
2217 "Fold message headers."
2240 "Remove all images from the article buffer."
2251 "Show any images that are in the HTML-rendered article buffer.
2252 This only works if the article in question is HTML."
2264 start end)))))))
2267 "Unfold folded message headers.
2268 Only the headers that fit into the current window width will be
2269 unfolded."
2281 "Value of `truncate-lines' in Gnus Article buffer.
2282 Valid values are nil, t, `head', `first', `last', an integer or a
2283 predicate. See Info node `(gnus)Customizing Articles'."
2286 ;; :link '(custom-manual "(gnus)Customizing Articles")
2290 "Toggle whether to fold or truncate long lines in article the buffer.
2291 If ARG is non-nil and not a number, toggle
2292 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2293 long lines if and only if arg is positive."
2309 ;; In versions of Emacs 22 (CVS) before 2006-05-26,
2310 ;; `toggle-truncate-lines' needs an argument.
2314 "Place a boundary line at the end of the headers."
2333 "Fill lines that are wider than the window width."
2353 "Capitalize the first word in each sentence."
2364 "Remove trailing CRs and then translate remaining CRs into LFs."
2376 "Remove all trailing blank lines from the article."
2395 "Display any Face headers in the header."
2399 ;; When displaying parts, this function can be called several times on
2400 ;; the same article, without any intended toggle semantic (as typing `W
2401 ;; D d' would have). So face deletion must occur only when we come from
2402 ;; an interactive command, that is when the *Article* buffer is
2403 ;; read-only.
2407 face faces)
2416 ;; Check whether this face is censored.
2421 from))))
2443 "Look for an X-Face header and display it if present."
2447 ;; Delete the old process, if any.
2450 ;; See the comment in `article-display-face'.
2452 ;; We have already displayed X-Faces, so we remove them
2453 ;; instead.
2455 ;; Display X-Faces.
2457 x-faces face)
2462 ;; If type `W f', use gnus-original-article-buffer,
2463 ;; otherwise use the current buffer because displaying
2464 ;; RFC822 parts calls this function too.
2470 ;; Check whether this face is censored.
2475 from))))
2479 ;; We display the face.
2481 ;; The command is a lisp function, so we call it.
2484 ;; The command is a string, so we interpret the command
2485 ;; as a, well, command, and fork it off.
2489 "article-x-face" nil shell-file-name
2490 shell-command-switch gnus-article-x-face-command)
2491 nil)
2492 ;; Sending multiple EOFs to xv doesn't work,
2493 ;; so we only do a single external face.
2501 gnus-article-x-face-command
2505 "Decode all MIME-encoded words in the article."
2512 gnus-newsgroup-ignored-charsets)))
2516 "Decode charset-encoded text in the article.
2517 If PROMPT (the prefix), prompt for a coding system to use."
2526 gnus-newsgroup-ignored-charsets))
2527 ct cte ctl charset format)
2550 ;; The text code could have been decoded.
2561 "Remove encoded-word encoding from headers."
2568 gnus-newsgroup-ignored-charsets))
2570 end start)
2589 "Decode group names in Newsgroups, Followup-To and Xref headers."
2593 regexp)
2595 gnus-group-name-charset-group-alist)
2607 ;; XXX how to use data in article buffer?
2611 gnus-newsgroup-name method))
2618 "Decode IDNA strings in RHS in various headers in current buffer.
2619 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2620 Mail-Reply-To: and Mail-Followup-To:."
2639 "Translate a quoted-printable-encoded article.
2640 If FORCE, decode the article whether it is marked as quoted-printable
2641 or not.
2642 If READ-CHARSET, ask for a coding system."
2668 "Translate a base64 article.
2669 If FORCE, decode the article whether it is marked as base64 not.
2670 If READ-CHARSET, ask for a coding system."
2703 "Translate a HZ-encoded article."
2711 "Remove the newlines that some other mailers insert into URLs."
2723 "Format an HTML article."
2736 "List of temporary files created by `gnus-article-browse-html-parts'.
2740 "What to do with temporary files from `gnus-article-browse-html-parts'.
2741 If nil, don't delete temporary files. If it is t, delete them on
2742 exit from the summary buffer. If it is the symbol `file', query
2743 on each file, if it is `ask' ask once when exiting from the
2744 summary buffer."
2752 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2755 "Delete temp-files created by `gnus-article-browse-html-parts'."
2763 "Delete the temporary HTML file? "
2765 files)))
2767 how)))
2773 "Delete temporary HTML file(s) in directory `%s'? "
2781 ;; Also remove file from the list when not deleted or if file doesn't
2782 ;; exist anymore.
2784 gnus-article-browse-html-temp-list)
2787 "Find CID content in HANDLES and save it in a file in DIRECTORY.
2788 Return file name."
2795 ;; Exclude broken handles that `gnus-summary-enter-digest-group'
2796 ;; may create.
2800 cid handle directory))
2809 mailcap-mime-extensions))))
2810 directory))
2816 Recurse into multiparts. The optional HEADER that should be a decoded
2818 ;; Internal function used by `gnus-article-browse-html-article'.
2820 ;; Find and show the html-parts.
2822 ;; If HTML, show it:
2834 nil)))
2846 ;; resolve cid contents
2848 cid-file)
2852 nil t)
2857 content nil)
2862 gnus-article-mime-handles)
2863 cid-dir))
2869 standard-output
2877 ;; Do we need to care for 8.3 filenames?
2879 ;; Add a meta html tag to specify charset and a header.
2890 nil t)
2906 ;; We have to examine charset one by one since
2907 ;; charset specified in parts might be different.
2911 charset)
2920 hcharset nil t)))
2923 coding hcharset)))
2929 nil t))
2935 title coding))
2936 body content)
2942 title charset))
2945 content body)
2946 charset))))
2952 title coding))
2953 body content))
2955 body content)))
2979 content))
2994 ;; FIXME: Warn if there's an <img> tag?
2997 ;; If multipart, recurse
3012 gnus-visible-headers)))
3022 showed))
3026 Inline images embedded in a message using the cid scheme, as they are
3027 generally considered to be safe, will be processed properly.
3028 The message header is added to the beginning of every html part unless
3029 the prefix argument ARG is given.
3031 Warning: Spammers use links to images (using the http scheme) in HTML
3032 articles to verify whether you have read the message. As
3033 `gnus-article-browse-html-article' passes the HTML content to the
3035 use it for mails from trusted senders.
3037 If you always want to display HTML parts in the browser, set
3038 `mm-text-html-renderer' to nil.
3040 This command creates temporary files to pass HTML contents including
3041 images if any to the browser, and deletes them when exiting the group
3042 \(if you want)."
3043 ;; Cf. `mm-w3m-safe-url-regexp'
3048 gnus-visible-headers))
3049 ;; As we insert a <hr>, there's no need for the body boundary.
3063 parts)
3066 ;; If singlepart, enforce a list.
3070 ;; Process the list
3078 "Remove list identifies from the Subject header.
3079 The `gnus-list-identifiers' variable specifies what to do."
3091 nil t)
3099 "Toggle hiding of any PEM headers and signatures in the current article.
3100 If given a negative prefix, always show; if given a positive prefix,
3101 always hide."
3107 ;; Hide the horrendously ugly "header".
3110 nil t)
3114 end
3119 ;; Hide the trailer as well
3121 nil t)
3126 "Strip the banners specified by the `banner' group parameter and by
3127 `gnus-article-address-banner-alist'."
3136 ;; Note that the From header is decoded here, so it is
3137 ;; required that the *-extract-address-components function
3138 ;; supports non-ASCII text.
3146 from))))
3154 "Strip the banner specified by the argument."
3176 "Translate article using an online translation service."
3191 "Hide the signature in the current article.
3192 If given a negative prefix, always show; if given a positive prefix,
3193 always hide."
3205 "Strip offensive headers from bodies."
3214 "Remove all blank lines from the beginning of the article."
3225 "Narrow the buffer to the head of the message.
3226 Point is left at the beginning of the narrowed-to region."
3230 ;; Absolutely no headers displayed.
3233 ;; Normal headers.
3236 ;; Nothing but headers.
3242 "Place point at the start of the body."
3245 ;; This variable is only bound when dealing with separate
3246 ;; MIME body parts.
3248 t)
3250 t)
3253 nil)))
3256 "Replace consecutive blank lines with one empty line."
3261 ;; First make all blank lines empty.
3267 ;; Then replace multiple empty lines with a single empty line.
3275 "Remove all white space from the beginning of the lines in the article."
3285 "Remove all white space from the end of the lines in the article."
3295 "Strip leading, trailing and multiple blank lines."
3302 "Strip all blank lines."
3312 "Narrow to the signature; return t if a signature is found, else nil."
3316 ;; Check whether we have some limits to what we consider
3317 ;; to be a signature.
3320 limit limited)
3332 limits nil)))
3335 t)))))
3338 "Search the current buffer for the signature separator.
3339 Put point at the beginning of the signature separator."
3348 seps))
3349 t
3351 nil)))
3354 "Return the current prefix arg as a number, or 0 if no prefix."
3360 "Return nil if hiding is necessary.
3361 Arg can be nil or a number. nil and positive means hide, negative
3362 means show, 0 means toggle."
3369 nil)
3372 t)
3377 t)
3378 nil)))))))
3381 "Say whether the current buffer contains hidden text of type TYPE."
3389 'hidden
3390 nil)))
3393 "Show all hidden text of type TYPE.
3394 Originally it is hide instead of DUMMY."
3398 'article-type type
3401 gnus-hidden-properties)))
3414 "Move point to the start of the next header.
3415 If the current header is a continuation header, this can be several
3416 lines forward."
3427 gnus-article-date-headers)
3428 gnus-article-date-headers)
3429 t))
3432 "Convert DATE date to TYPE in the current article.
3433 The default type is `ut'. See `gnus-article-date-headers' for
3434 possible values."
3441 pos date bface eface)
3486 visible-date)
3500 type)))
3510 ;; Do highlighting.
3522 "Return a DATE line of TYPE."
3524 combined-lapsed))
3529 ;; Convert to the local timezone.
3532 ;; Convert to Universal Time.
3546 ;; Get the original date from the article.
3550 date)))
3551 ;; Let the user define the format.
3555 gnus-article-time-format)
3557 gnus-article-time-format)))
3561 ;; ISO 8601.
3565 "Date: "
3570 ;; Do a lapsed format.
3573 ;; A combined date/lapsed format.
3577 lapsed-string)
3579 time
3589 date-string)))
3590 ;; Display the date in proper English
3594 "Date: the "
3603 " of "
3605 " "
3607 " at "
3609 ":"
3615 ;; If the date is seriously mangled, the timezone functions are
3616 ;; liable to bug out, so we ignore all errors.
3624 num prev)
3634 ;; This is a bit convoluted, but basically we go
3635 ;; through the time units for years, weeks, etc,
3636 ;; and divide things to see whether that results
3637 ;; in positive answers.
3642 ;; The (remaining) seconds are too few to
3643 ;; be divided into this time unit.
3644 ""
3645 ;; It's big enough, so we output it.
3655 ;; If dates are odd, then it might appear like the
3656 ;; article was sent in the future.
3658 " ago"
3662 "Convert the current article date to the local timezone."
3667 "Convert the current article date to something that is proper English."
3672 "Convert the current article date to what it was originally.
3673 This is only useful if you have used some other date conversion
3674 function and want to see what the date was before converting."
3679 "Convert the current article date to time lapsed since it was sent."
3684 "Convert the current article date to time lapsed since it was sent."
3689 "Function to be run from a timer to update the lapsed time line."
3701 type next end)
3731 "Start a timer to update the Date headers in the article buffers.
3732 The numerical prefix says how frequently (in seconds) the function
3733 is to run."
3742 "Stop the Date timer."
3749 "Convert the current article date to the user-defined format.
3750 This format is defined by the `gnus-article-time-format' variable."
3755 "Convert the current article date to ISO8601."
3760 "Save the original date as a text property and evaluate FORMS."
3769 nil t))
3775 ,@forms
3780 ;; (defun article-show-all ()
3781 ;; "Show all hidden text in the article buffer."
3782 ;; (interactive)
3783 ;; (save-excursion
3784 ;; (let ((inhibit-read-only t))
3785 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3788 "Remove excessive whitespace from all headers."
3799 "Emphasize text according to `gnus-emphasis-alist'."
3806 gnus-article-emphasis-alist)
3808 gnus-emphasis-alist))
3811 gnus-hidden-properties))
3812 regexp elem beg invisible visible face)
3833 "Setup newsgroup emphasis alist."
3845 highlight)
3850 gnus-emphasis-alist)))))
3855 ;;; Saving functions.
3858 "Save the currently selected article."
3861 ;; Remove headers according to `gnus-saved-headers' or the value
3862 ;; of the `:headers' property that the saver function might have.
3865 gnus-saved-headers gnus-visible-headers))
3866 ;; Ignore group parameter. See `article-hide-headers'.
3873 ;; !!! Magic! The saving functions all save
3874 ;; `gnus-save-article-buffer' (or so they think), but we
3875 ;; bind that variable to our save-buffer.
3890 function group headers variable
3891 dir-var)
3894 result)
3899 default-name)
3901 default-name)
3914 gnus-number-of-articles-to-be-saved)
3917 ;; Let the split methods have their say.
3919 ;; No split name was found.
3925 default-name))
3926 ;; A single group name is returned.
3935 default-name))
3936 ;; A single split name was found
3940 gnus-article-save-directory))
3947 dir name)))
3948 ;; A list of splits was found.
3958 gnus-article-save-directory
3960 gnus-article-save-directory)))
3962 ;; Create the directory.
3964 ;; If we have read a directory, we append the default file name.
3967 default-name)
3969 ;; Possibly translate some characters.
3976 result))
3986 "If GROUP is an nndoc group, return the name of the parent group."
3991 "Append this article to Rmail file.
3992 Optional argument FILENAME specifies file name.
3993 Directory to save to is default to `gnus-article-save-directory'."
3995 "Save %s in rmail file" filename
3996 gnus-rmail-save-name gnus-newsgroup-name
4002 ;; Note that unlike gnus-summary-save-in-mail, there is no
4003 ;; check to see if filename is Babyl. Rmail in Emacs 23 does
4004 ;; not use Babyl.
4006 filename)
4009 "Append this article to Unix mail file.
4010 Optional argument FILENAME specifies file name.
4011 Directory to save to is default to `gnus-article-save-directory'."
4013 "Save %s in Unix mail file" filename
4014 gnus-mail-save-name gnus-newsgroup-name
4025 filename)
4030 "Append this article to file.
4031 Optional argument FILENAME specifies file name.
4032 Directory to save to is default to `gnus-article-save-directory'."
4034 "Save %s in file" filename
4035 gnus-file-save-name gnus-newsgroup-name
4045 filename)
4051 "Write this article to a file, overwriting it if the file exists.
4052 Optional argument FILENAME specifies file name.
4053 The directory to save in defaults to `gnus-article-save-directory'."
4055 "Save %s in file" filename
4056 gnus-file-save-name gnus-newsgroup-name
4062 "Append this article body to a file.
4063 Optional argument FILENAME specifies file name.
4064 The directory to save in defaults to `gnus-article-save-directory'."
4066 "Save %s body in file" filename
4067 gnus-file-save-name gnus-newsgroup-name
4079 filename)
4085 "Write this article body to a file, overwriting it if the file exists.
4086 Optional argument FILENAME specifies file name.
4087 The directory to save in defaults to `gnus-article-save-directory'."
4089 "Save %s body in file" filename
4090 gnus-file-save-name gnus-newsgroup-name
4097 "Pipe this article to subprocess COMMAND.
4098 Valid values for COMMAND include:
4099 a string
4100 The executable command name and possibly arguments.
4101 nil
4102 You will be prompted for the command in the minibuffer.
4103 the symbol `default'
4104 It will be replaced with the command which the variable
4105 `gnus-summary-pipe-output-default-command' holds or the command
4106 last used for saving.
4107 Non-nil value for RAW overrides `:decode' and `:headers' properties
4108 and the raw article including all headers will be piped."
4112 save-buffer default)
4120 gnus-article-buffer
4121 gnus-original-article-buffer)
4124 ;; Remove unwanted headers.
4131 gnus-saved-headers gnus-visible-headers))
4137 gnus-last-shell-command))
4141 default
4143 default))))
4156 "Pipe this article to muttprint."
4159 "Print using command: " gnus-summary-muttprint-program
4160 nil gnus-summary-muttprint-program)))
4162 gnus-summary-pipe-output-default-command))
4166 ;;; Article file names when saving.
4169 "Capitalize NEWSGROUP name."
4175 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4176 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
4177 Otherwise, it is like ~/News/news/group/num."
4184 gnus-article-save-directory)))
4189 default
4193 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4194 If variable `gnus-use-long-file-name' is non-nil, it is
4195 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4199 newsgroup
4202 gnus-article-save-directory)))
4207 default
4211 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4212 If variable `gnus-use-long-file-name' is non-nil, it is
4213 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4217 newsgroup
4220 default-directory))
4221 gnus-article-save-directory)))
4224 "Generate file name from sender."
4230 gnus-article-save-directory)))
4233 "Verify X-PGP-Sig."
4234 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4239 items info headers)
4241 mml2015-use
4249 ;; Don't verify multiple headers.
4299 ;; Do highlighting.
4310 "Verify Cancel-Lock header."
4334 article-verify-x-pgp-sig
4335 article-verify-cancel-lock
4336 article-hide-boring-headers
4337 article-treat-overstrike
4338 article-treat-ansi-sequences
4339 article-fill-long-lines
4340 article-capitalize-sentences
4341 article-remove-cr
4342 article-remove-leading-whitespace
4343 article-display-x-face
4344 article-display-face
4345 article-de-quoted-unreadable
4346 article-de-base64-unreadable
4347 article-decode-HZ
4348 article-wash-html
4349 article-unsplit-urls
4350 article-hide-list-identifiers
4351 article-strip-banner
4352 article-babel
4353 article-hide-pem
4354 article-hide-signature
4355 article-strip-headers-in-body
4356 article-remove-trailing-blank-lines
4357 article-strip-leading-blank-lines
4358 article-strip-multiple-blank-lines
4359 article-strip-leading-space
4360 article-strip-trailing-space
4361 article-strip-blank-lines
4362 article-strip-all-blank-lines
4363 article-date-local
4364 article-date-english
4365 article-date-iso8601
4366 article-date-original
4367 article-treat-date
4368 article-date-ut
4369 article-decode-mime-words
4370 article-decode-charset
4371 article-decode-encoded-words
4372 article-date-user
4373 article-date-lapsed
4374 article-date-combined-lapsed
4375 article-emphasize
4376 article-treat-dumbquotes
4377 article-treat-non-ascii
4378 article-normalize-headers
4379 ;;(article-show-all . gnus-article-show-all-headers)
4380 )))
4381 \f
4382 ;;;
4383 ;;; Gnus article mode
4384 ;;;
4391 " " gnus-article-goto-next-page
4394 [delete] gnus-article-goto-prev-page
4395 "\C-c^" gnus-article-refer-article
4396 "h" gnus-article-show-summary
4397 "s" gnus-article-show-summary
4398 "\C-c\C-m" gnus-article-mail
4399 "?" gnus-article-describe-briefly
4400 "<" beginning-of-buffer
4401 ">" end-of-buffer
4402 "\C-c\C-i" gnus-info-find-node
4403 "\C-c\C-b" gnus-bug
4404 "R" gnus-article-reply-with-original
4405 "F" gnus-article-followup-with-original
4406 "\C-hk" gnus-article-describe-key
4407 "\C-hc" gnus-article-describe-key-briefly
4408 "\C-hb" gnus-article-describe-bindings
4410 "e" gnus-article-read-summary-keys
4411 "\C-d" gnus-article-read-summary-keys
4412 "\M-*" gnus-article-read-summary-keys
4413 "\M-#" gnus-article-read-summary-keys
4414 "\M-^" gnus-article-read-summary-keys
4415 "\M-g" gnus-article-read-summary-keys)
4417 (substitute-key-definition
4418 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4420 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4421 "W" gnus-article-wide-reply-with-original)
4422 (if (featurep 'xemacs)
4423 (set-keymap-default-binding gnus-article-send-map
4424 'gnus-article-read-summary-send-keys)
4425 (define-key gnus-article-send-map [t] 'gnus-article-read-summary-send-keys))
4427 (defun gnus-article-make-menu-bar ()
4428 (unless (boundp 'gnus-article-commands-menu)
4429 (gnus-summary-make-menu-bar))
4430 (unless (boundp 'gnus-article-article-menu)
4431 (easy-menu-define
4432 gnus-article-article-menu gnus-article-mode-map ""
4433 '("Article"
4434 ["Scroll forwards" gnus-article-goto-next-page t]
4435 ["Scroll backwards" gnus-article-goto-prev-page t]
4436 ["Show summary" gnus-article-show-summary t]
4437 ["Fetch Message-ID at point" gnus-article-refer-article t]
4438 ["Mail to address at point" gnus-article-mail t]
4439 ["Send a bug report" gnus-bug t]))
4441 (easy-menu-define
4442 gnus-article-treatment-menu gnus-article-mode-map ""
4443 ;; Fixme: this should use :active (and maybe :visible).
4444 '("Treatment"
4445 ["Hide headers" gnus-article-hide-headers t]
4446 ["Hide signature" gnus-article-hide-signature t]
4447 ["Hide citation" gnus-article-hide-citation t]
4448 ["Treat overstrike" gnus-article-treat-overstrike t]
4449 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4450 ["Remove carriage return" gnus-article-remove-cr t]
4451 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4452 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4453 ["Remove base64" gnus-article-de-base64-unreadable t]
4454 ["Treat html" gnus-article-wash-html t]
4455 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4456 ["Decode HZ" gnus-article-decode-HZ t]))
4458 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4460 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4462 (gnus-run-hooks 'gnus-article-menu-hook)))
4464 (defvar bookmark-make-record-function)
4465 (defvar shr-put-image-function)
4467 (define-derived-mode gnus-article-mode fundamental-mode "Article"
4468 "Major mode for displaying an article.
4470 All normal editing commands are switched off.
4472 The following commands are available in addition to all summary mode
4473 commands:
4482 (gnus-simplify-mode-line)
4483 (make-local-variable 'minor-mode-alist)
4484 (when (gnus-visual-p 'article-menu 'menu)
4485 (gnus-article-make-menu-bar)
4486 (when gnus-summary-tool-bar-map
4487 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4488 (gnus-update-format-specifications nil 'article-mode)
4489 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4490 (set (make-local-variable 'gnus-page-broken) nil)
4491 (make-local-variable 'gnus-article-current-summary)
4492 (make-local-variable 'gnus-article-mime-handles)
4493 (make-local-variable 'gnus-article-decoded-p)
4494 (make-local-variable 'gnus-article-mime-handle-alist)
4495 (make-local-variable 'gnus-article-wash-types)
4496 (make-local-variable 'gnus-article-image-alist)
4497 (make-local-variable 'gnus-article-charset)
4498 (make-local-variable 'gnus-article-ignored-charsets)
4499 (set (make-local-variable 'bookmark-make-record-function)
4500 'gnus-summary-bookmark-make-record)
4501 ;; Prevent Emacs 22 from displaying non-break space with `nobreak-space'
4502 ;; face.
4503 (set (make-local-variable 'nobreak-char-display) nil)
4504 ;; Enable `gnus-article-remove-images' to delete images shr.el renders.
4505 (set (make-local-variable 'shr-put-image-function) 'gnus-shr-put-image)
4506 (setq cursor-in-non-selected-windows nil)
4507 (gnus-set-default-directory)
4508 (buffer-disable-undo)
4509 (setq buffer-read-only t
4510 show-trailing-whitespace nil)
4511 (mm-enable-multibyte))
4513 (defun gnus-article-setup-buffer ()
4514 "Initialize the article buffer."
4515 (let* ((name (if gnus-single-article-buffer "*Article*"
4516 (concat "*Article "
4517 (gnus-group-decoded-name gnus-newsgroup-name)
4518 "*")))
4519 (original
4521 (concat " *Original Article"
4522 (substring name (match-end 0))))))
4523 (setq gnus-article-buffer name)
4524 (setq gnus-original-article-buffer original)
4525 (setq gnus-article-mime-handle-alist nil)
4526 (with-current-buffer gnus-summary-buffer
4527 ;; This might be a variable local to the summary buffer.
4528 (unless gnus-single-article-buffer
4529 (setq gnus-article-buffer name)
4530 (setq gnus-original-article-buffer original)
4531 (gnus-set-global-variables)))
4532 (gnus-article-setup-highlight-words)
4533 ;; Init original article buffer.
4534 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4535 (mm-enable-multibyte)
4536 (setq major-mode 'gnus-original-article-mode)
4537 (make-local-variable 'gnus-original-article))
4538 (if (and (get-buffer name)
4539 (with-current-buffer name
4540 (if gnus-article-edit-mode
4541 (if (y-or-n-p "Article mode edit in progress; discard? ")
4542 (progn
4543 (set-buffer-modified-p nil)
4544 (gnus-kill-buffer name)
4545 (message "")
4546 nil)
4547 (error "Action aborted"))
4548 t)))
4549 (let ((summary gnus-summary-buffer))
4550 (with-current-buffer name
4551 (set (make-local-variable 'gnus-article-edit-mode) nil)
4552 (gnus-article-stop-animations)
4553 (when gnus-article-mime-handles
4554 (mm-destroy-parts gnus-article-mime-handles)
4555 (setq gnus-article-mime-handles nil))
4556 ;; Set it to nil in article-buffer!
4557 (setq gnus-article-mime-handle-alist nil)
4558 (buffer-disable-undo)
4559 (setq buffer-read-only t)
4560 (unless (derived-mode-p 'gnus-article-mode)
4561 (gnus-article-mode))
4562 (set (make-local-variable 'gnus-summary-buffer) summary)
4563 (setq truncate-lines gnus-article-truncate-lines)
4564 (current-buffer)))
4565 (let ((summary gnus-summary-buffer))
4566 (with-current-buffer (gnus-get-buffer-create name)
4567 (gnus-article-mode)
4568 (setq truncate-lines gnus-article-truncate-lines)
4569 (set (make-local-variable 'gnus-summary-buffer) summary)
4570 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4571 (when article-lapsed-timer
4572 (gnus-stop-date-timer))
4573 (when gnus-article-update-date-headers
4574 (gnus-start-date-timer gnus-article-update-date-headers))
4575 (current-buffer))))))
4577 (defun gnus-article-stop-animations ()
4578 (dolist (timer (and (boundp 'timer-list)
4579 timer-list))
4580 (when (eq (gnus-timer--function timer) 'image-animate-timeout)
4581 (cancel-timer timer))))
4583 (defun gnus-stop-downloads ()
4584 (when (boundp 'url-queue)
4585 (set (intern "url-queue" obarray) nil)))
4587 ;; Set article window start at LINE, where LINE is the number of lines
4588 ;; from the head of the article.
4589 (defun gnus-article-set-window-start (&optional line)
4590 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4591 (when article-window
4592 (set-window-start
4593 article-window
4594 (with-current-buffer gnus-article-buffer
4595 (goto-char (point-min))
4596 (if (not line)
4597 (point-min)
4598 (gnus-message 6 "Moved to bookmark")
4600 (forward-line line)
4601 (point)))))))
4603 (defun gnus-article-prepare (article &optional all-headers header)
4604 "Prepare ARTICLE in article mode buffer.
4605 ARTICLE should either be an article number or a Message-ID.
4606 If ARTICLE is an id, HEADER should be the article headers.
4607 If ALL-HEADERS is non-nil, no headers are hidden."
4608 (save-excursion
4609 ;; Make sure we start in a summary buffer.
4610 (unless (derived-mode-p 'gnus-summary-mode)
4611 (set-buffer gnus-summary-buffer))
4612 (setq gnus-summary-buffer (current-buffer))
4613 (let* ((gnus-article (if header (mail-header-number header) article))
4614 (summary-buffer (current-buffer))
4615 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4616 (group gnus-newsgroup-name)
4617 result)
4618 (save-excursion
4619 (gnus-article-setup-buffer)
4620 (set-buffer gnus-article-buffer)
4621 ;; Deactivate active regions.
4622 (when (and (boundp 'transient-mark-mode)
4623 transient-mark-mode)
4624 (setq mark-active nil))
4625 (if (not (setq result (let ((inhibit-read-only t))
4626 (gnus-request-article-this-buffer
4627 article group))))
4628 ;; There is no such article.
4629 (save-excursion
4630 (when (and (numberp article)
4631 (not (memq article gnus-newsgroup-sparse)))
4632 (setq gnus-article-current
4633 (cons gnus-newsgroup-name article))
4634 (set-buffer gnus-summary-buffer)
4635 (setq gnus-current-article article)
4636 (if (and (memq article gnus-newsgroup-undownloaded)
4637 (not (gnus-online (gnus-find-method-for-group
4638 gnus-newsgroup-name))))
4639 (progn
4640 (gnus-summary-set-agent-mark article)
4641 (message "Message marked for downloading"))
4642 (gnus-summary-mark-article article gnus-canceled-mark)
4643 (unless (memq article gnus-newsgroup-sparse)
4644 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4645 (if (or (eq result 'pseudo)
4646 (eq result 'nneething))
4647 (progn
4648 (with-current-buffer summary-buffer
4649 (push article gnus-newsgroup-history)
4650 (setq gnus-last-article gnus-current-article
4651 gnus-current-article 0
4652 gnus-current-headers nil
4653 gnus-article-current nil)
4654 (if (eq result 'nneething)
4655 (gnus-configure-windows 'summary)
4656 (gnus-configure-windows 'article))
4657 (gnus-set-global-variables))
4658 (let ((gnus-article-mime-handle-alist-1
4659 gnus-article-mime-handle-alist))
4660 (gnus-set-mode-line 'article)))
4661 ;; The result from the `request' was an actual article -
4662 ;; or at least some text that is now displayed in the
4663 ;; article buffer.
4664 (when (and (numberp article)
4665 (not (eq article gnus-current-article)))
4666 ;; Seems like a new article has been selected.
4667 ;; `gnus-current-article' must be an article number.
4668 (with-current-buffer summary-buffer
4669 (push article gnus-newsgroup-history)
4670 (setq gnus-last-article gnus-current-article
4671 gnus-current-article article
4672 gnus-current-headers
4673 (gnus-summary-article-header gnus-current-article)
4674 gnus-article-current
4675 (cons gnus-newsgroup-name gnus-current-article))
4676 (unless (vectorp gnus-current-headers)
4677 (setq gnus-current-headers nil))
4678 (gnus-summary-goto-subject gnus-current-article)
4679 (when (gnus-summary-show-thread)
4680 ;; If the summary buffer really was folded, the
4681 ;; previous goto may not actually have gone to
4682 ;; the right article, but the thread root instead.
4683 ;; So we go again.
4684 (gnus-summary-goto-subject gnus-current-article))
4685 (gnus-run-hooks 'gnus-mark-article-hook)
4686 (gnus-set-mode-line 'summary)
4687 (when (gnus-visual-p 'article-highlight 'highlight)
4688 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4689 ;; Set the global newsgroup variables here.
4690 (gnus-set-global-variables)
4691 (setq gnus-have-all-headers
4692 (or all-headers gnus-show-all-headers))))
4693 (save-excursion
4694 (gnus-configure-windows 'article))
4695 (when (or (numberp article)
4696 (stringp article))
4697 (gnus-article-prepare-display)
4698 ;; Do page break.
4699 (goto-char (point-min))
4700 (when gnus-break-pages
4701 (gnus-narrow-to-page)))
4702 (let ((gnus-article-mime-handle-alist-1
4703 gnus-article-mime-handle-alist))
4704 (gnus-set-mode-line 'article))
4705 (article-goto-body)
4706 (unless (bobp)
4707 (forward-line -1))
4708 (set-window-point (get-buffer-window (current-buffer)) (point))
4709 (gnus-configure-windows 'article)
4710 (gnus-run-hooks 'gnus-article-prepare-hook)
4711 t))))))
4713 ;;;###autoload
4714 (defun gnus-article-prepare-display ()
4715 "Make the current buffer look like a nice article."
4716 ;; Hooks for getting information from the article.
4717 ;; This hook must be called before being narrowed.
4718 (let ((gnus-article-buffer (current-buffer))
4719 buffer-read-only
4720 (inhibit-read-only t))
4721 (unless (derived-mode-p 'gnus-article-mode)
4722 (gnus-article-mode))
4723 (setq buffer-read-only nil
4724 gnus-article-wash-types nil
4725 gnus-article-image-alist nil)
4726 (gnus-run-hooks 'gnus-tmp-internal-hook)
4727 (when gnus-display-mime-function
4728 (funcall gnus-display-mime-function))
4729 ;; Add attachment buttons to the header.
4730 (when gnus-mime-display-attachment-buttons-in-header
4731 (gnus-mime-buttonize-attachments-in-header))))
4733 ;;;
4734 ;;; Gnus Sticky Article Mode
4735 ;;;
4737 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4738 "Mode for sticky articles."
4739 ;; Release bindings that won't work.
4740 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4741 gnus-sticky-article-mode-map)
4742 (substitute-key-definition 'gnus-article-refer-article 'undefined
4743 gnus-sticky-article-mode-map)
4744 (dolist (k '("e" "h" "s" "F" "R"))
4745 (define-key gnus-sticky-article-mode-map k nil))
4746 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4747 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4748 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4749 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4751 (defun gnus-sticky-article (arg)
4752 "Make the current article sticky.
4753 If a prefix ARG is given, ask for a name for this sticky article buffer."
4754 (interactive "P")
4755 (gnus-summary-show-thread)
4756 (gnus-summary-select-article nil nil 'pseudo)
4757 (let (new-art-buf-name)
4758 (gnus-eval-in-buffer-window gnus-article-buffer
4759 (setq new-art-buf-name
4760 (concat
4761 "*Sticky Article: "
4762 (if arg
4763 (read-from-minibuffer "Sticky article buffer name: ")
4764 (gnus-with-article-headers
4765 (gnus-article-goto-header "subject")
4766 (setq new-art-buf-name
4767 (buffer-substring-no-properties
4768 (line-beginning-position) (line-end-position)))
4769 (goto-char (point-min))
4770 (gnus-article-goto-header "from")
4771 (setq new-art-buf-name
4772 (concat
4773 new-art-buf-name ", "
4774 (buffer-substring-no-properties
4775 (line-beginning-position) (line-end-position))))
4776 (goto-char (point-min))
4777 (gnus-article-goto-header "date")
4778 (setq new-art-buf-name
4779 (concat
4780 new-art-buf-name ", "
4781 (buffer-substring-no-properties
4782 (line-beginning-position) (line-end-position))))))
4783 "*"))
4784 (if (and (gnus-buffer-live-p new-art-buf-name)
4785 (with-current-buffer new-art-buf-name
4786 (derived-mode-p 'gnus-sticky-article-mode)))
4787 (switch-to-buffer new-art-buf-name)
4788 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4789 (gnus-sticky-article-mode))
4790 (setq gnus-article-buffer new-art-buf-name))
4791 (gnus-summary-recenter)
4792 (gnus-summary-position-point))
4794 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4795 "Kill the given sticky article BUFFER.
4796 If none is given, assume the current buffer and kill it if it has
4797 `gnus-sticky-article-mode'."
4798 (interactive)
4799 (unless buffer
4800 (setq buffer (current-buffer)))
4801 (with-current-buffer buffer
4802 (when (derived-mode-p 'gnus-sticky-article-mode)
4803 (gnus-kill-buffer buffer))))
4805 (defun gnus-kill-sticky-article-buffers (arg)
4806 "Kill all sticky article buffers.
4807 If a prefix ARG is given, ask for confirmation."
4808 (interactive "P")
4809 (dolist (buf (gnus-buffers))
4810 (with-current-buffer buf
4811 (when (derived-mode-p 'gnus-sticky-article-mode)
4812 (if (not arg)
4813 (gnus-kill-buffer buf)
4814 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4815 (gnus-kill-buffer buf)))))))
4817 ;;;
4818 ;;; Gnus MIME viewing functions
4819 ;;;
4822 "Format of the MIME buttons.
4824 Valid specifiers include:
4825 %t The MIME type
4826 %T MIME type, along with additional info
4827 %n The `name' parameter
4828 %d The description, if any
4829 %l The length of the encoded part
4830 %p The part identifier number
4831 %e Dots if the part isn't displayed
4833 General format specifiers can also be used. See Info node
4834 `(gnus)Formatting Variables'.")
4836 (defvar gnus-mime-button-line-format-alist
4837 '((?t gnus-tmp-type ?s)
4838 (?T gnus-tmp-type-long ?s)
4839 (?n gnus-tmp-name ?s)
4840 (?d gnus-tmp-description ?s)
4841 (?p gnus-tmp-id ?s)
4842 (?l gnus-tmp-length ?d)
4843 (?e gnus-tmp-dots ?s)))
4845 (defvar gnus-mime-button-commands
4847 (gnus-mime-view-part "v" "View Interactively...")
4848 (gnus-mime-view-part-as-type "t" "View As Type...")
4849 (gnus-mime-view-part-as-charset "C" "View As charset...")
4850 (gnus-mime-save-part "o" "Save...")
4851 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4852 (gnus-mime-replace-part "r" "Replace part")
4853 (gnus-mime-delete-part "d" "Delete part")
4854 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4855 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4856 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4857 (gnus-mime-view-part-externally "e" "View Externally")
4858 (gnus-mime-print-part "p" "Print")
4859 (gnus-mime-pipe-part "|" "Pipe To Command...")
4860 (gnus-mime-action-on-part "." "Take action on the part...")))
4862 (defun gnus-article-mime-part-status ()
4863 (if gnus-article-mime-handle-alist-1
4864 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4865 " (1 part)"
4866 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4867 ""))
4869 (defvar gnus-mime-button-map
4870 (let ((map (make-sparse-keymap)))
4871 (define-key map gnus-mouse-2 'gnus-article-push-button)
4872 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4873 (dolist (c gnus-mime-button-commands)
4874 (define-key map (cadr c) (car c)))
4875 map))
4877 (easy-menu-define
4878 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4879 `("MIME Part"
4880 ,@(mapcar (lambda (c)
4881 (vector (caddr c) (car c) :active t))
4882 gnus-mime-button-commands)))
4884 (defvar gnus-url-button-commands
4885 '((gnus-article-copy-string "u" "Copy URL to kill ring")))
4887 (defvar gnus-url-button-map
4888 (let ((map (make-sparse-keymap)))
4889 (dolist (c gnus-url-button-commands)
4890 (define-key map (cadr c) (car c)))
4891 map))
4893 (easy-menu-define
4894 gnus-url-button-menu gnus-url-button-map "URL button menu."
4895 `("Url Button"
4896 ,@(mapcar (lambda (c)
4897 (vector (caddr c) (car c) :active t))
4898 gnus-url-button-commands)))
4900 (defmacro gnus-bind-safe-url-regexp (&rest body)
4901 "Bind `mm-w3m-safe-url-regexp' according to `gnus-safe-html-newsgroups'."
4902 `(let ((mm-w3m-safe-url-regexp
4903 (let ((group (if (and (derived-mode-p 'gnus-article-mode)
4904 (gnus-buffer-live-p
4905 gnus-article-current-summary))
4906 (with-current-buffer gnus-article-current-summary
4907 gnus-newsgroup-name)
4908 gnus-newsgroup-name)))
4909 (if (cond ((not group)
4910 ;; Maybe we're in a mml-preview buffer
4911 ;; and no group is selected.
4912 t)
4913 ((stringp gnus-safe-html-newsgroups)
4914 (string-match gnus-safe-html-newsgroups group))
4915 ((consp gnus-safe-html-newsgroups)
4916 (member group gnus-safe-html-newsgroups)))
4917 nil
4918 mm-w3m-safe-url-regexp))))
4919 ,@body))
4921 (defun gnus-mime-button-menu (event prefix)
4922 "Construct a context-sensitive menu of MIME commands."
4924 (save-window-excursion
4925 (let ((pos (event-start event)))
4926 (select-window (posn-window pos))
4927 (goto-char (posn-point pos))
4928 (gnus-article-check-buffer)
4929 (popup-menu gnus-mime-button-menu nil prefix))))
4931 (defun gnus-mime-view-all-parts (&optional handles)
4932 "View all the MIME parts."
4933 (interactive)
4934 (with-current-buffer gnus-article-buffer
4935 (let ((handles (or handles gnus-article-mime-handles))
4936 (mail-parse-charset gnus-newsgroup-charset)
4937 (mail-parse-ignored-charsets
4938 (with-current-buffer gnus-summary-buffer
4939 gnus-newsgroup-ignored-charsets)))
4940 (when handles
4941 (mm-remove-parts handles)
4942 (goto-char (point-min))
4944 (let ((inhibit-read-only t))
4945 (delete-region (point) (point-max))
4946 (gnus-bind-safe-url-regexp (mm-display-parts handles)))))))
4948 (defun gnus-article-jump-to-part (n)
4949 "Jump to MIME part N."
4950 (interactive "P")
4951 (let ((parts (with-current-buffer gnus-article-buffer
4952 (length gnus-article-mime-handle-alist))))
4953 (when (zerop parts)
4954 (error "No such part"))
4955 (pop-to-buffer gnus-article-buffer)
4956 (or n
4957 (setq n (if (= parts 1)
4958 1
4959 (read-number (format "Jump to part (1..%s): " parts)))))
4960 (unless (and (integerp n) (<= n parts) (>= n 1))
4961 (setq n
4962 (progn
4963 (gnus-message 7 "Invalid part `%s', using %s instead."
4964 n parts)
4965 parts)))
4966 (gnus-message 9 "Jumping to part %s." n)
4967 (cond ((>= gnus-auto-select-part 1)
4968 (while (and (<= n parts)
4969 (not (gnus-article-goto-part n)))
4970 (setq n (1+ n))))
4971 ((< gnus-auto-select-part 0)
4972 (while (and (>= n 1)
4973 (not (gnus-article-goto-part n)))
4974 (setq n (1- n))))
4975 (t
4976 (gnus-article-goto-part n)))))
4978 (defvar gnus-mime-buttonized-part-id nil
4979 "ID of a mime part that should be buttonized.
4980 `gnus-mime-save-part-and-strip' and `gnus-mime-delete-part' bind it.")
4982 (eval-when-compile
4983 (defsubst gnus-article-edit-part (handles &optional current-id)
4984 "Edit an article in order to delete a mime part.
4985 This function is exclusively used by `gnus-mime-save-part-and-strip'
4986 and `gnus-mime-delete-part', and not provided at run-time normally."
4987 (gnus-article-edit-article
4988 `(lambda ()
4989 (buffer-disable-undo)
4990 (erase-buffer)
4991 (let ((mail-parse-charset (or gnus-article-charset
4992 ',gnus-newsgroup-charset))
4993 (mail-parse-ignored-charsets
4994 (or gnus-article-ignored-charsets
4995 ',gnus-newsgroup-ignored-charsets))
4996 (mbl mml-buffer-list))
4997 (setq mml-buffer-list nil)
4998 (insert-buffer-substring gnus-original-article-buffer)
4999 (mime-to-mml ',handles)
5000 (setq gnus-article-mime-handles nil)
5001 (let ((mbl1 mml-buffer-list))
5002 (setq mml-buffer-list mbl)
5003 (set (make-local-variable 'mml-buffer-list) mbl1))
5004 (gnus-make-local-hook 'kill-buffer-hook)
5005 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
5006 `(lambda (no-highlight)
5007 (let ((mail-parse-charset (or gnus-article-charset
5008 ',gnus-newsgroup-charset))
5009 (message-options message-options)
5010 (message-options-set-recipient)
5011 (mail-parse-ignored-charsets
5012 (or gnus-article-ignored-charsets
5013 ',gnus-newsgroup-ignored-charsets)))
5014 (mml-to-mime)
5015 (mml-destroy-buffers)
5016 (remove-hook 'kill-buffer-hook
5017 'mml-destroy-buffers t)
5018 (kill-local-variable 'mml-buffer-list))
5019 (gnus-summary-edit-article-done
5020 ,(or (mail-header-references gnus-current-headers) "")
5021 ,(gnus-group-read-only-p)
5022 ,gnus-summary-buffer no-highlight))
5023 t)
5024 ;; Force buttonizing this part.
5025 (let ((gnus-mime-buttonized-part-id current-id))
5026 (gnus-article-edit-done))
5027 (gnus-configure-windows 'article)
5028 (when (and current-id (integerp gnus-auto-select-part))
5029 (gnus-article-jump-to-part
5030 (min (max (+ current-id gnus-auto-select-part) 1)
5031 (with-current-buffer gnus-article-buffer
5032 (length gnus-article-mime-handle-alist)))))))
5034 (defun gnus-mime-replace-part (file)
5035 "Replace MIME part under point with an external body."
5036 ;; Useful if file has already been saved to disk
5037 (interactive
5038 (list
5039 (read-file-name "Replace MIME part with file: "
5040 (or mm-default-directory default-directory)
5041 nil nil)))
5042 (gnus-mime-save-part-and-strip file))
5044 (defun gnus-mime-save-part-and-strip (&optional file)
5045 "Save the MIME part under point then replace it with an external body.
5046 If FILE is given, use it for the external part."
5047 (interactive)
5048 (gnus-article-check-buffer)
5049 (when (gnus-group-read-only-p)
5050 (error "The current group does not support deleting of parts"))
5051 (when (mm-complicated-handles gnus-article-mime-handles)
5052 (error "\
5053 The current article has a complicated MIME structure, giving up..."))
5054 (let* ((data (get-text-property (point) 'gnus-data))
5055 (id (get-text-property (point) 'gnus-part))
5056 param
5057 (handles gnus-article-mime-handles))
5058 (unless file
5059 (setq file
5060 (and data (mm-save-part data "Delete MIME part and save to: "))))
5061 (when file
5062 (with-current-buffer (mm-handle-buffer data)
5063 (erase-buffer)
5064 (insert "Content-Type: " (mm-handle-media-type data))
5065 (mml-insert-parameter-string (cdr (mm-handle-type data))
5066 '(charset))
5067 ;; Add a filename for the sake of saving the part again.
5068 (mml-insert-parameter
5069 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
5074 (setcdr data
5075 (cdr (mm-make-handle nil
5076 `("message/external-body"
5077 (access-type . "LOCAL-FILE")
5078 (name . ,file)))))
5079 ;; (set-buffer gnus-summary-buffer)
5080 (gnus-article-edit-part handles id))))
5082 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
5083 ;; parts...>') but with stripping would be nice.
5085 (defun gnus-mime-delete-part ()
5086 "Delete the MIME part under point.
5087 Replace it with some information about the removed part."
5088 (interactive)
5089 (gnus-article-check-buffer)
5090 (when (gnus-group-read-only-p)
5091 (error "The current group does not support deleting of parts"))
5092 (when (mm-complicated-handles gnus-article-mime-handles)
5093 (error "\
5094 The current article has a complicated MIME structure, giving up..."))
5095 (when (or gnus-expert-user
5096 (gnus-yes-or-no-p "\
5097 Deleting parts may malfunction or destroy the article; continue? "))
5098 (let* ((data (get-text-property (point) 'gnus-data))
5099 (id (get-text-property (point) 'gnus-part))
5100 (handles gnus-article-mime-handles)
5101 (description
5102 (let ((desc (mm-handle-description data)))
5103 (when desc
5104 (mail-decode-encoded-word-string desc))))
5105 (filename (or (mm-handle-filename data) "(none)"))
5106 (type (mm-handle-media-type data)))
5107 (unless data
5108 (error "No MIME part under point"))
5109 (with-current-buffer (mm-handle-buffer data)
5110 (let ((bsize (buffer-size)))
5111 (erase-buffer)
5112 (insert
5113 (concat
5120 bsize (if (= bsize 1)
5121 ""
5122 "s"))
5123 (when description
5126 (setcdr data
5127 (cdr (mm-make-handle
5128 nil `("text/plain" (charset . gnus-decoded)) nil nil
5129 (list "attachment")
5130 (format "Deleted attachment (%s bytes)" bsize))))))
5131 ;; (set-buffer gnus-summary-buffer)
5132 (gnus-article-edit-part handles id))))
5134 (defun gnus-mime-save-part ()
5135 "Save the MIME part under point."
5136 (interactive)
5137 (gnus-article-check-buffer)
5138 (let ((data (get-text-property (point) 'gnus-data)))
5139 (when data
5140 (mm-save-part data))))
5142 (defun gnus-mime-pipe-part (&optional cmd)
5143 "Pipe the MIME part under point to a process.
5144 Use CMD as the process."
5145 (interactive)
5146 (gnus-article-check-buffer)
5147 (let ((data (get-text-property (point) 'gnus-data)))
5148 (when data
5149 (mm-pipe-part data cmd))))
5151 (defun gnus-mime-view-part ()
5152 "Interactively choose a viewing method for the MIME part under point."
5153 (interactive)
5154 (gnus-article-check-buffer)
5155 (let ((data (get-text-property (point) 'gnus-data)))
5156 (when data
5157 (setq gnus-article-mime-handles
5158 (mm-merge-handles
5159 gnus-article-mime-handles (setq data (copy-sequence data))))
5160 (mm-interactively-view-part data))))
5162 (defun gnus-mime-view-part-as-type-internal ()
5163 (gnus-article-check-buffer)
5164 (let* ((handle (get-text-property (point) 'gnus-data))
5165 (name (or
5166 ;; Content-Type: foo/bar; name=...
5167 (mail-content-type-get (mm-handle-type handle) 'name)
5168 ;; Content-Disposition: attachment; filename=...
5169 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
5170 (def-type (and name (mm-default-file-encoding name))))
5171 (or (and def-type (cons def-type 0))
5172 (and handle
5173 (equal (mm-handle-media-supertype handle) "text")
5174 '("text/plain" . 0))
5175 '("application/octet-stream" . 0))))
5177 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
5178 "Choose a MIME media type, and view the part as such.
5179 If non-nil, PRED is a predicate to use during completion to limit the
5180 available media-types."
5181 (interactive)
5182 (unless mime-type
5183 (setq mime-type
5184 (let ((default (gnus-mime-view-part-as-type-internal)))
5185 (gnus-completing-read
5186 "View as MIME type"
5187 (if pred
5188 (gnus-remove-if-not pred (mailcap-mime-types))
5189 (mailcap-mime-types))
5190 nil nil nil
5191 (car default)))))
5192 (gnus-article-check-buffer)
5193 (let ((handle (get-text-property (point) 'gnus-data)))
5194 (when handle
5195 (when (equal (mm-handle-media-type handle) "message/external-body")
5196 (unless (mm-handle-cache handle)
5197 (mm-extern-cache-contents handle))
5198 (setq handle (mm-handle-cache handle)))
5199 (setq handle
5200 (mm-make-handle (mm-handle-buffer handle)
5201 (cons mime-type (cdr (mm-handle-type handle)))
5202 (mm-handle-encoding handle)
5203 (mm-handle-undisplayer handle)
5204 (mm-handle-disposition handle)
5205 (mm-handle-description handle)
5206 nil
5207 (mm-handle-id handle)))
5208 (setq gnus-article-mime-handles
5209 (mm-merge-handles gnus-article-mime-handles handle))
5210 (when (mm-handle-displayed-p handle)
5211 (mm-remove-part handle))
5212 (gnus-mm-display-part handle))))
5214 (defun gnus-mime-copy-part (&optional handle arg)
5215 "Put the MIME part under point into a new buffer.
5216 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
5217 are decompressed."
5218 (interactive (list nil current-prefix-arg))
5219 (gnus-article-check-buffer)
5220 (unless handle
5221 (setq handle (get-text-property (point) 'gnus-data)))
5222 (when handle
5223 (let ((filename (mm-handle-filename handle))
5224 contents dont-decode charset coding-system)
5225 (mm-with-unibyte-buffer
5226 (mm-insert-part handle)
5227 (setq contents (or (condition-case nil
5228 (mm-decompress-buffer filename nil 'sig)
5229 (error
5230 (setq dont-decode t)
5231 nil))
5232 (buffer-string))))
5233 (setq filename (cond (filename (file-name-nondirectory filename))
5234 (dont-decode "*raw data*")
5235 (t "*decoded*")))
5236 (cond
5237 (dont-decode)
5238 ((not arg)
5239 (unless (setq charset (mail-content-type-get
5240 (mm-handle-type handle) 'charset))
5241 (unless (setq coding-system (mm-with-unibyte-buffer
5242 (insert contents)
5243 (mm-find-buffer-file-coding-system)))
5244 (setq charset gnus-newsgroup-charset))))
5245 ((numberp arg)
5246 (setq charset (or (cdr (assq arg
5247 gnus-summary-show-article-charset-alist))
5248 (mm-read-coding-system "Charset: ")))))
5249 (switch-to-buffer (generate-new-buffer filename))
5250 (if (or coding-system
5251 (and charset
5252 (setq coding-system (mm-charset-to-coding-system
5253 charset nil t))
5254 (not (eq coding-system 'ascii))))
5255 (progn
5256 (mm-enable-multibyte)
5257 (insert (mm-decode-coding-string contents coding-system))
5258 (setq buffer-file-coding-system
5259 (if (boundp 'last-coding-system-used)
5260 (symbol-value 'last-coding-system-used)
5261 coding-system)))
5262 (mm-disable-multibyte)
5263 (insert contents)
5264 (setq buffer-file-coding-system mm-binary-coding-system))
5265 ;; We do it this way to make `normal-mode' set the appropriate mode.
5266 (unwind-protect
5267 (progn
5268 (setq buffer-file-name (expand-file-name filename))
5269 (normal-mode))
5270 (setq buffer-file-name nil))
5271 (goto-char (point-min)))))
5273 (defun gnus-mime-print-part (&optional handle filename)
5274 "Print the MIME part under point."
5275 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5276 (gnus-article-check-buffer)
5277 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5278 (contents (and handle (mm-get-part handle)))
5279 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5280 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5281 (when contents
5282 (if printer
5283 (unwind-protect
5284 (progn
5285 (mm-save-part-to-file handle file)
5286 (call-process shell-file-name nil
5287 (generate-new-buffer " *mm*")
5288 nil
5289 shell-command-switch
5290 (mm-mailcap-command
5291 printer file (mm-handle-type handle))))
5292 (delete-file file))
5293 (with-temp-buffer
5294 (insert contents)
5295 (gnus-print-buffer))
5296 (ps-despool filename)))))
5298 (defun gnus-mime-inline-part (&optional handle arg)
5299 "Insert the MIME part under point into the current buffer.
5300 Compressed files like .gz and .bz2 are decompressed."
5301 (interactive (list nil current-prefix-arg))
5302 (gnus-article-check-buffer)
5303 (let* ((inhibit-read-only t)
5304 (b (point))
5305 (btn ;; position where the MIME button exists
5306 (if handle
5307 (if (eq handle (get-text-property b 'gnus-data))
5308 b
5309 (article-goto-body)
5310 (or (text-property-any (point) (point-max) 'gnus-data handle)
5311 (text-property-any (point-min) (point) 'gnus-data handle)))
5312 (setq handle (get-text-property b 'gnus-data))
5313 b))
5314 start contents charset coding-system)
5315 (when handle
5316 (when (= b (prog1
5317 btn
5318 (setq start (next-single-property-change btn 'gnus-data
5319 nil (point-max))
5320 btn (previous-single-property-change start
5321 'gnus-data))))
5322 (setq b btn))
5323 (if (and (not arg) (mm-handle-undisplayer handle))
5324 (mm-remove-part handle)
5325 (mm-with-unibyte-buffer
5326 (mm-insert-part handle)
5327 (setq contents
5328 (or (mm-decompress-buffer (mm-handle-filename handle) nil t)
5329 (buffer-string))))
5330 (cond
5331 ((not arg)
5332 (unless (setq charset (mail-content-type-get
5333 (mm-handle-type handle) 'charset))
5334 (unless (setq coding-system
5335 (mm-with-unibyte-buffer
5336 (insert contents)
5337 (mm-find-buffer-file-coding-system)))
5338 (setq charset gnus-newsgroup-charset))))
5339 ((numberp arg)
5340 (if (mm-handle-undisplayer handle)
5341 (mm-remove-part handle))
5342 (setq charset
5343 (or (cdr (assq arg
5344 gnus-summary-show-article-charset-alist))
5345 (mm-read-coding-system "Charset: "))))
5346 ((mm-handle-undisplayer handle)
5347 (mm-remove-part handle)))
5348 (goto-char start)
5349 (unless (bolp)
5350 ;; This is a header button.
5351 (forward-line 1))
5352 (mm-display-inline handle))
5353 ;; Toggle the button appearance between `[button]...' and `[button]'.
5354 (goto-char btn)
5355 (let ((displayed-p (mm-handle-displayed-p handle)))
5356 (gnus-insert-mime-button handle (get-text-property btn 'gnus-part)
5357 (list displayed-p))
5358 (if (featurep 'emacs)
5359 (delete-region
5360 (point)
5361 (next-single-property-change (point) 'gnus-data nil (point-max)))
5362 (let* ((end (next-single-property-change (point) 'gnus-data))
5363 (annots (annotations-at (or end (point-max)))))
5364 (delete-region (point)
5365 (if end
5366 (if annots (1+ end) end)
5367 (point-max)))
5368 (dolist (annot annots)
5369 (set-extent-endpoints annot (point) (point)))))
5370 (setq start (point))
5372 (progn
5373 (goto-char start)
5374 (unless (or displayed-p (eolp))
5375 ;; Add extra newline.
5376 (insert (propertize (buffer-substring (1- start) start)
5377 'gnus-undeletable t))))
5378 ;; We're in the article header.
5379 (delete-char -1)
5380 (dolist (ovl (gnus-overlays-in btn (point)))
5381 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
5382 (gnus-overlay-put ovl 'face nil))
5383 (save-restriction
5384 (message-narrow-to-field)
5385 (let ((gnus-treatment-function-alist
5386 '((gnus-treat-highlight-headers
5387 gnus-article-highlight-headers))))
5388 (gnus-treat-article 'head)))))
5389 (goto-char b))))
5391 (defun gnus-mime-set-charset-parameters (handle charset)
5392 "Set CHARSET to parameters in HANDLE.
5393 CHARSET may either be a string or a symbol."
5394 (unless (stringp charset)
5395 (setq charset (symbol-name charset)))
5396 (if (stringp (car handle))
5397 (dolist (h (cdr handle))
5398 (gnus-mime-set-charset-parameters h charset))
5399 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5400 "message/external-body")
5401 (progn
5402 (unless (mm-handle-cache handle)
5403 (mm-extern-cache-contents handle))
5404 (mm-handle-cache handle))
5405 handle)))
5406 (param (assq 'charset (cdr type))))
5407 (if param
5408 (setcdr param charset)
5409 (setcdr type (cons (cons 'charset charset) (cdr type)))))))
5411 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5412 "Insert the MIME part under point into the current buffer using the
5413 specified charset."
5414 (interactive (list nil current-prefix-arg))
5415 (gnus-article-check-buffer)
5416 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5417 (fun (get-text-property (point) 'gnus-callback))
5418 (gnus-newsgroup-ignored-charsets 'gnus-all)
5419 charset form preferred parts)
5420 (when handle
5421 (when (prog1
5422 (and fun
5423 (setq charset
5424 (or (cdr (assq
5425 arg
5426 gnus-summary-show-article-charset-alist))
5427 (mm-read-coding-system "Charset: "))))
5428 (if (mm-handle-undisplayer handle)
5429 (mm-remove-part handle)))
5430 (gnus-mime-set-charset-parameters handle charset)
5431 (when (and (consp (setq form (cdr-safe fun)))
5432 (setq form (ignore-errors
5433 (assq 'gnus-mime-display-alternative form)))
5434 (setq preferred (caddr form))
5435 (progn
5436 (when (eq (car preferred) 'quote)
5437 (setq preferred (cadr preferred)))
5438 (not (equal preferred
5439 (get-text-property (point) 'gnus-data))))
5440 (setq parts (get-text-property (point) 'gnus-part))
5441 (setq parts (cdr (assq parts
5442 gnus-article-mime-handle-alist)))
5443 (equal (mm-handle-media-type parts) "multipart/alternative")
5444 (setq parts (reverse (cdr parts))))
5445 (setcar (cddr form)
5446 (list 'quote (or (cadr (member preferred parts))
5447 (car parts)))))
5448 (funcall fun handle)))))
5450 (defun gnus-mime-view-part-externally (&optional handle)
5451 "View the MIME part under point with an external viewer."
5452 (interactive)
5453 (gnus-article-check-buffer)
5454 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5455 (mm-user-display-methods nil)
5456 (mm-inlined-types nil)
5457 (mail-parse-charset gnus-newsgroup-charset)
5458 (mail-parse-ignored-charsets
5459 (with-current-buffer gnus-summary-buffer
5460 gnus-newsgroup-ignored-charsets))
5461 (type (mm-handle-media-type handle))
5462 (method (mailcap-mime-info type))
5463 (mm-enable-external t))
5464 (if (not (stringp method))
5465 (gnus-mime-view-part-as-type
5466 nil (lambda (type) (stringp (mailcap-mime-info type))))
5467 (when handle
5468 (mm-display-part handle nil t)))))
5470 (defun gnus-mime-view-part-internally (&optional handle)
5471 "View the MIME part under point with an internal viewer.
5472 If no internal viewer is available, use an external viewer."
5473 (interactive)
5474 (gnus-article-check-buffer)
5475 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5476 (mm-inlined-types '(".*"))
5477 (mm-inline-large-images t)
5478 (mail-parse-charset gnus-newsgroup-charset)
5479 (mail-parse-ignored-charsets
5480 (with-current-buffer gnus-summary-buffer
5481 gnus-newsgroup-ignored-charsets))
5482 (inhibit-read-only t))
5483 (if (not (mm-inlinable-p handle))
5484 (gnus-mime-view-part-as-type
5485 nil (lambda (type) (mm-inlinable-p handle type)))
5486 (when handle
5487 (gnus-bind-safe-url-regexp (mm-display-part handle))))))
5489 (defun gnus-mime-action-on-part (&optional action)
5490 "Do something with the MIME attachment at \(point\)."
5491 (interactive
5492 (list (gnus-completing-read "Action" (mapcar 'car gnus-mime-action-alist) t)))
5493 (gnus-article-check-buffer)
5494 (let ((action-pair (assoc action gnus-mime-action-alist)))
5495 (if action-pair
5496 (funcall (cdr action-pair)))))
5498 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5499 "Call FUNCTION on MIME part N.
5500 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as its only argument.
5501 If INTERACTIVE, call FUNCTION interactively."
5502 (let (window frame)
5503 ;; Check whether the article is displayed.
5504 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5505 (setq window (get-buffer-window gnus-article-buffer t))
5506 (frame-visible-p (setq frame (window-frame window))))
5507 (error "No article is displayed"))
5508 (with-current-buffer gnus-article-buffer
5509 ;; Check whether the article displays the right contents.
5510 (unless (with-current-buffer gnus-summary-buffer
5511 (eq gnus-current-article (gnus-summary-article-number)))
5512 (error "You should select the right article first"))
5513 (if n
5514 (setq n (prefix-numeric-value n))
5515 (let ((pt (point)))
5516 (setq n (or (get-text-property pt 'gnus-part)
5517 (and (not (bobp))
5518 (get-text-property (1- pt) 'gnus-part))
5519 (get-text-property (prog2
5520 (forward-line 1)
5521 (point)
5522 (goto-char pt))
5523 'gnus-part)
5524 (get-text-property
5525 (or (and (setq pt (previous-single-property-change
5526 pt 'gnus-part))
5527 (1- pt))
5528 (next-single-property-change (point) 'gnus-part)
5529 (point))
5530 'gnus-part)
5531 1))))
5532 ;; Check whether the specified part exists.
5533 (when (> n (length gnus-article-mime-handle-alist))
5534 (error "No such part")))
5535 (unless
5536 (progn
5537 ;; To select the window is needed so that the cursor
5538 ;; might be visible on the MIME button.
5539 (select-window (prog1
5540 window
5541 (setq window (selected-window))
5542 ;; Article may be displayed in the other frame.
5543 (gnus-select-frame-set-input-focus
5544 (prog1
5545 frame
5546 (setq frame (selected-frame))))))
5547 (when (gnus-article-goto-part n)
5548 ;; We point the cursor and the arrow at the MIME button
5549 ;; when the `function' prompt the user for something.
5550 (unless (and (pos-visible-in-window-p)
5551 (> (count-lines (point) (window-end))
5552 (/ (1- (window-height)) 3)))
5553 (recenter (/ (1- (window-height)) 3)))
5554 (let ((cursor-in-non-selected-windows t)
5555 (overlay-arrow-string "=>")
5556 (overlay-arrow-position (point-marker)))
5557 (unwind-protect
5558 (cond
5559 ((and no-handle interactive)
5560 (call-interactively function))
5561 (no-handle
5562 (funcall function))
5563 (interactive
5564 (call-interactively
5565 function (get-text-property (point) 'gnus-data)))
5566 (t
5567 (funcall function
5568 (get-text-property (point) 'gnus-data))))
5569 (set-marker overlay-arrow-position nil)
5570 (unless gnus-auto-select-part
5571 (gnus-select-frame-set-input-focus frame)
5572 (select-window window))))
5573 t))
5574 (if gnus-inhibit-mime-unbuttonizing
5575 ;; This is the default though the program shouldn't reach here.
5576 (error "No such part")
5577 ;; The part which doesn't have the MIME button is selected.
5578 ;; So, we display all the buttons and redo it.
5579 (let ((gnus-inhibit-mime-unbuttonizing t))
5580 (gnus-summary-show-article)
5581 (gnus-article-part-wrapper n function no-handle))))))
5583 (defun gnus-article-pipe-part (n)
5584 "Pipe MIME part N, which is the numerical prefix."
5585 (interactive "P")
5586 (gnus-article-part-wrapper n 'mm-pipe-part))
5588 (defun gnus-article-save-part (n)
5589 "Save MIME part N, which is the numerical prefix."
5590 (interactive "P")
5591 (gnus-article-part-wrapper n 'mm-save-part))
5593 (defun gnus-article-interactively-view-part (n)
5594 "View MIME part N interactively, which is the numerical prefix."
5595 (interactive "P")
5596 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5598 (defun gnus-article-copy-part (n)
5599 "Copy MIME part N, which is the numerical prefix."
5600 (interactive "P")
5601 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5603 (defun gnus-article-view-part-as-charset (n)
5604 "View MIME part N using a specified charset.
5605 N is the numerical prefix."
5606 (interactive "P")
5607 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5609 (defun gnus-article-view-part-externally (n)
5610 "View MIME part N externally, which is the numerical prefix."
5611 (interactive "P")
5612 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5614 (defun gnus-article-inline-part (n)
5615 "Inline MIME part N, which is the numerical prefix."
5616 (interactive "P")
5617 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5619 (defun gnus-article-save-part-and-strip (n)
5620 "Save MIME part N and replace it with an external body.
5621 N is the numerical prefix."
5622 (interactive "P")
5623 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5625 (defun gnus-article-replace-part (n)
5626 "Replace MIME part N with an external body.
5627 N is the numerical prefix."
5628 (interactive "P")
5629 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5631 (defun gnus-article-delete-part (n)
5632 "Delete MIME part N and add some information about the removed part.
5633 N is the numerical prefix."
5634 (interactive "P")
5635 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5637 (defun gnus-article-view-part-as-type (n)
5638 "Choose a MIME media type, and view part N as such.
5639 N is the numerical prefix."
5640 (interactive "P")
5641 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5643 (defun gnus-article-mime-match-handle-first (condition)
5644 (if condition
5645 (let (n)
5646 (dolist (ihandle gnus-article-mime-handle-alist)
5647 (if (and (cond
5648 ((functionp condition)
5649 (funcall condition (cdr ihandle)))
5650 ((eq condition 'undisplayed)
5651 (not (or (mm-handle-undisplayer (cdr ihandle))
5652 (equal (mm-handle-media-type (cdr ihandle))
5653 "multipart/alternative"))))
5654 ((eq condition 'undisplayed-alternative)
5655 (not (mm-handle-undisplayer (cdr ihandle))))
5656 (t t))
5657 (gnus-article-goto-part (car ihandle))
5658 (or (not n) (< (car ihandle) n)))
5659 (setq n (car ihandle))))
5660 (or n 1))
5661 1))
5663 (defun gnus-article-view-part (&optional n)
5664 "View MIME part N, which is the numerical prefix.
5665 If the part is already shown, hide the part. If N is nil, view
5666 all parts."
5667 (interactive "P")
5668 (with-current-buffer gnus-article-buffer
5669 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5670 gnus-article-mime-match-handle-function)))
5671 (when (> n (length gnus-article-mime-handle-alist))
5672 (error "No such part"))
5673 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5674 (when (gnus-article-goto-part n)
5675 (if (equal (car handle) "multipart/alternative")
5676 (progn
5677 (beginning-of-line) ;; Make it toggle subparts
5678 (gnus-article-press-button))
5679 (when (eq (gnus-mm-display-part handle) 'internal)
5680 (gnus-set-window-start)))))))
5682 (defsubst gnus-article-mime-total-parts ()
5683 (if (bufferp (car gnus-article-mime-handles))
5684 1 ;; single part
5685 (1- (length gnus-article-mime-handles))))
5687 (defun gnus-mm-display-part (handle)
5688 "Display HANDLE and fix MIME button."
5689 (let ((id (get-text-property (point) 'gnus-part))
5690 (point (point))
5691 (inhibit-read-only t)
5692 (window (selected-window))
5693 (mail-parse-charset gnus-newsgroup-charset)
5694 (mail-parse-ignored-charsets
5695 (if (gnus-buffer-live-p gnus-summary-buffer)
5696 (with-current-buffer gnus-summary-buffer
5697 gnus-newsgroup-ignored-charsets)
5698 nil))
5699 start retval)
5700 (unwind-protect
5701 (progn
5702 (let ((win (gnus-get-buffer-window (current-buffer) t)))
5703 (when win
5704 (select-window win)
5705 (goto-char point)))
5706 (setq start (next-single-property-change point 'gnus-data
5707 nil (point-max))
5708 point (previous-single-property-change start 'gnus-data))
5709 (if (mm-handle-displayed-p handle)
5710 ;; This will remove the part.
5711 (setq retval (mm-display-part handle))
5712 (let ((part (or (and (mm-inlinable-p handle)
5713 (mm-inlined-p handle)
5714 t)
5715 (with-temp-buffer
5716 (gnus-bind-safe-url-regexp
5717 (setq retval (mm-display-part handle)))
5718 (unless (zerop (buffer-size))
5719 (buffer-string))))))
5720 (goto-char start)
5721 (unless (bolp)
5722 ;; This is a header button.
5723 (forward-line 1))
5724 (cond ((stringp part)
5725 (save-restriction
5726 (narrow-to-region (point)
5727 (progn
5728 (insert part)
5730 (point)))
5731 (gnus-treat-article nil id
5732 (gnus-article-mime-total-parts)
5733 (mm-handle-media-type handle))
5734 (mm-handle-set-undisplayer
5735 handle
5736 `(lambda ()
5737 (let ((inhibit-read-only t))
5738 (delete-region ,(copy-marker (point-min) t)
5739 ,(point-max-marker)))))))
5740 (part
5741 (mm-display-inline handle))))))
5742 (goto-char point)
5743 ;; Toggle the button appearance between `[button]...' and `[button]'.
5744 (let ((displayed-p (mm-handle-displayed-p handle)))
5745 (gnus-insert-mime-button handle id (list displayed-p))
5746 (if (featurep 'emacs)
5747 (delete-region
5748 (point)
5749 (next-single-property-change (point) 'gnus-data nil (point-max)))
5750 (let* ((end (next-single-property-change (point) 'gnus-data))
5751 (annots (annotations-at (or end (point-max)))))
5752 (delete-region (point)
5753 (if end
5754 (if annots (1+ end) end)
5755 (point-max)))
5756 (dolist (annot annots)
5757 (set-extent-endpoints annot (point) (point)))))
5758 (setq start (point))
5760 (progn
5761 (goto-char start)
5762 (unless (or displayed-p (eolp))
5763 ;; Add extra newline.
5764 (insert (propertize (buffer-substring (1- start) start)
5765 'gnus-undeletable t))))
5766 ;; We're in the article header.
5767 (delete-char -1)
5768 (dolist (ovl (gnus-overlays-in point (point)))
5769 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
5770 (gnus-overlay-put ovl 'face nil))
5771 (save-restriction
5772 (message-narrow-to-field)
5773 (let ((gnus-treatment-function-alist
5774 '((gnus-treat-highlight-headers
5775 gnus-article-highlight-headers))))
5776 (gnus-treat-article 'head)))))
5777 (goto-char point)
5778 (if (window-live-p window)
5779 (select-window window)))
5780 retval))
5782 (defun gnus-article-goto-part (n)
5783 "Go to MIME part N."
5784 (when gnus-break-pages
5785 (widen))
5786 (article-goto-body)
5787 (prog1
5788 (let ((start (or (text-property-any (point) (point-max) 'gnus-part n)
5789 ;; There may be header buttons.
5790 (text-property-any (point-min) (point) 'gnus-part n)))
5791 part handle end next handles)
5792 (when start
5793 (goto-char start)
5794 (if (setq handle (get-text-property start 'gnus-data))
5795 start
5796 ;; Go to the displayed subpart, assuming this is
5797 ;; multipart/alternative.
5798 (setq part start
5799 end (point-at-eol))
5800 (while (and (not handle)
5801 part
5802 (< part end)
5803 (setq next (text-property-not-all part end
5804 'gnus-data nil)))
5805 (setq part next
5806 handle (get-text-property part 'gnus-data))
5807 (push (cons handle part) handles)
5808 (unless (mm-handle-displayed-p handle)
5809 (setq handle nil
5810 part (text-property-any part end 'gnus-data nil))))
5811 (unless handle
5812 ;; No subpart is displayed, so we find preferred one.
5813 (setq part
5814 (cdr (assq (mm-preferred-alternative
5815 (nreverse (mapcar 'car handles)))
5816 handles))))
5817 (if part
5818 (goto-char (1+ part))
5819 start))))
5820 (when gnus-break-pages
5821 (gnus-narrow-to-page))))
5823 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
5824 (let ((gnus-tmp-name
5825 (or (mm-handle-filename handle)
5826 (mail-content-type-get (mm-handle-type handle) 'url)
5827 ""))
5828 (gnus-tmp-type (mm-handle-media-type handle))
5829 (gnus-tmp-description (or (mm-handle-description handle) ""))
5830 (gnus-tmp-dots
5831 (if (if displayed (car displayed)
5832 (mm-handle-displayed-p handle))
5833 "" "..."))
5834 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5835 (buffer-size)))
5836 gnus-tmp-type-long b e)
5837 (when (string-match ".*/" gnus-tmp-name)
5838 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5839 (setq gnus-tmp-type-long (concat gnus-tmp-type
5840 (and (not (equal gnus-tmp-name ""))
5841 (concat "; " gnus-tmp-name))))
5842 (unless (equal gnus-tmp-description "")
5843 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5844 (setq b (point))
5845 (gnus-eval-format
5846 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5847 `(keymap ,gnus-mime-button-map
5848 gnus-callback gnus-mm-display-part
5849 gnus-part ,gnus-tmp-id
5850 article-type annotation
5851 gnus-data ,handle
5852 rear-nonsticky t))
5853 (setq e (if (bolp)
5854 ;; Exclude a newline.
5855 (1- (point))
5856 (point)))
5857 (when gnus-article-button-face
5858 (gnus-overlay-put (gnus-make-overlay b e nil t)
5859 'face gnus-article-button-face))
5860 (widget-convert-button
5861 'link b e
5862 :mime-handle handle
5863 :action 'gnus-widget-press-button
5864 :button-keymap gnus-mime-button-map
5865 :help-echo
5866 (lambda (widget)
5867 ;; Needed to properly clear the message due to a bug in
5868 ;; wid-edit (XEmacs only).
5869 (if (boundp 'help-echo-owns-message)
5870 (setq help-echo-owns-message t))
5871 (format
5872 "%S: %s the MIME part; %S: more options"
5873 (aref gnus-mouse-2 0)
5874 (if (mm-handle-displayed-p (widget-get widget :mime-handle))
5875 "hide" "show")
5876 (aref gnus-down-mouse-3 0))))))
5878 (defun gnus-widget-press-button (elems el)
5879 (goto-char (widget-get elems :from))
5880 (gnus-article-press-button))
5882 (defvar gnus-displaying-mime nil)
5884 (defun gnus-display-mime (&optional ihandles)
5885 "Display the MIME parts."
5886 (save-excursion
5887 (save-selected-window
5888 (let ((window (get-buffer-window gnus-article-buffer))
5889 (point (point)))
5890 (when window
5891 (select-window window)
5892 ;; We have to do this since selecting the window
5893 ;; may change the point. So we set the window point.
5894 (set-window-point window point)))
5895 (let ((handles ihandles)
5896 (inhibit-read-only t)
5897 handle)
5898 (cond (handles)
5899 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5900 (when gnus-article-emulate-mime
5901 (mm-uu-dissect-text-parts handles)))
5902 (gnus-article-emulate-mime
5903 (setq handles (mm-uu-dissect))))
5904 (when (and (not ihandles)
5905 (not gnus-displaying-mime))
5906 ;; Top-level call; we clean up.
5907 (when gnus-article-mime-handles
5908 (mm-destroy-parts gnus-article-mime-handles)
5909 (setq gnus-article-mime-handle-alist nil));; A trick.
5910 (setq gnus-article-mime-handles handles)
5911 ;; We allow users to glean info from the handles.
5912 (when gnus-article-mime-part-function
5913 (gnus-mime-part-function handles)))
5914 (if (and handles
5915 (or (not (stringp (car handles)))
5916 (cdr handles)))
5917 (progn
5918 (when (and (not ihandles)
5919 (not gnus-displaying-mime))
5920 ;; Clean up for mime parts.
5921 (article-goto-body)
5922 (delete-region (point) (point-max)))
5923 (let ((gnus-displaying-mime t))
5924 (gnus-mime-display-part handles)))
5925 (save-restriction
5926 (article-goto-body)
5927 (narrow-to-region (point) (point-max))
5928 (gnus-treat-article nil 1 1 "text/plain")
5929 (widen)))
5930 (unless ihandles
5931 ;; Highlight the headers.
5932 (save-excursion
5933 (save-restriction
5934 (article-goto-body)
5935 (narrow-to-region (point-min) (point))
5936 (gnus-article-save-original-date
5937 (gnus-treat-article 'head)))))))
5938 ;; Cope with broken MIME messages.
5939 (goto-char (point-max))
5940 (unless (bolp)
5943 (defcustom gnus-mime-display-multipart-as-mixed nil
5946 If t, it overrides nil values of
5947 `gnus-mime-display-multipart-alternative-as-mixed' and
5948 `gnus-mime-display-multipart-related-as-mixed'."
5949 :group 'gnus-article-mime
5950 :type 'boolean)
5952 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5954 :version "22.1"
5955 :group 'gnus-article-mime
5956 :type 'boolean)
5958 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5962 `mm-discouraged-alternatives'\) images or other material inside a
5964 :version "22.1"
5965 :group 'gnus-article-mime
5966 :type 'boolean)
5968 (defcustom gnus-mime-display-attachment-buttons-in-header t
5969 "Add attachment buttons in the end of the header of an article.
5970 Since MIME attachments tend to be put at the end of an article, we may
5971 overlook them if there is a huge body. This option offers you a copy
5972 of all non-inlinable MIME parts as buttons shown in front of an article.
5973 If nil, don't show those extra buttons."
5974 :version "24.5"
5975 :group 'gnus-article-mime
5976 :type 'boolean)
5978 (defun gnus-mime-display-part (handle)
5979 (cond
5980 ;; Maybe a broken MIME message.
5981 ((null handle))
5982 ;; Single part.
5983 ((not (stringp (car handle)))
5984 (gnus-mime-display-single handle))
5985 ;; User-defined multipart
5986 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5987 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
5988 handle))
5989 ;; multipart/alternative
5990 ((and (equal (car handle) "multipart/alternative")
5991 (not (or gnus-mime-display-multipart-as-mixed
5992 gnus-mime-display-multipart-alternative-as-mixed)))
5993 (let ((id (1+ (length gnus-article-mime-handle-alist))))
5994 (push (cons id handle) gnus-article-mime-handle-alist)
5995 (gnus-mime-display-alternative (cdr handle) nil nil id)))
5996 ;; multipart/related
5997 ((and (equal (car handle) "multipart/related")
5998 (not (or gnus-mime-display-multipart-as-mixed
5999 gnus-mime-display-multipart-related-as-mixed)))
6000 (gnus-mime-display-part (cadr handle)))
6001 ((equal (car handle) "multipart/signed")
6002 (gnus-add-wash-type 'signed)
6003 (gnus-mime-display-security handle))
6004 ((equal (car handle) "multipart/encrypted")
6005 (gnus-add-wash-type 'encrypted)
6006 (gnus-mime-display-security handle))
6007 ;; Other multiparts are handled like multipart/mixed.
6008 (t
6009 (gnus-mime-display-mixed (cdr handle)))))
6011 (defun gnus-mime-part-function (handles)
6012 (if (stringp (car handles))
6013 (mapcar 'gnus-mime-part-function (cdr handles))
6014 (funcall gnus-article-mime-part-function handles)))
6016 (defun gnus-mime-display-mixed (handles)
6017 (mapcar 'gnus-mime-display-part handles))
6019 (defun gnus-mime-display-single (handle)
6020 (let ((type (mm-handle-media-type handle))
6021 (ignored gnus-ignored-mime-types)
6022 (not-attachment t)
6023 display text)
6024 (catch 'ignored
6025 (progn
6026 (while ignored
6027 (when (string-match (pop ignored) type)
6028 (throw 'ignored nil)))
6029 (if (and (not (and (if (gnus-buffer-live-p gnus-summary-buffer)
6030 (with-current-buffer gnus-summary-buffer
6031 gnus-inhibit-images)
6032 gnus-inhibit-images)
6034 (setq not-attachment
6035 (and (not (mm-inline-override-p handle))
6036 (or (not (mm-handle-disposition handle))
6037 (equal (car (mm-handle-disposition handle))
6038 "inline")
6039 (mm-attachment-override-p handle))))
6040 (mm-automatic-display-p handle)
6041 (or (and
6042 (mm-inlinable-p handle)
6043 (mm-inlined-p handle))
6044 (mm-automatic-external-display-p type)))
6045 (setq display t)
6046 (when (equal (mm-handle-media-supertype handle) "text")
6047 (setq text t)))
6048 (let ((id (car (rassq handle gnus-article-mime-handle-alist)))
6049 beg)
6050 (unless id
6051 (setq id (1+ (length gnus-article-mime-handle-alist)))
6052 (push (cons id handle) gnus-article-mime-handle-alist))
6053 (when (and display
6054 (equal (mm-handle-media-supertype handle) "message"))
6055 (insert-char
6057 (cond ((not (bolp)) 2)
6059 (t 1))))
6060 (when (or (not display)
6061 (not (gnus-unbuttonized-mime-type-p type))
6062 (eq id gnus-mime-buttonized-part-id))
6063 (gnus-insert-mime-button
6064 handle id (list (or display (and not-attachment text)))))
6065 (setq beg (point))
6066 (cond
6067 (display
6068 (let ((mail-parse-charset gnus-newsgroup-charset)
6069 (mail-parse-ignored-charsets
6070 (save-excursion (condition-case ()
6071 (set-buffer gnus-summary-buffer)
6072 (error))
6073 gnus-newsgroup-ignored-charsets)))
6074 (gnus-bind-safe-url-regexp (mm-display-part handle t))))
6075 ((and text not-attachment)
6076 (mm-display-inline handle)))
6077 (goto-char (point-max))
6079 (gnus-article-insert-newline)
6080 (if (prog1
6082 (forward-char 1))
6083 (gnus-article-insert-newline)
6084 (put-text-property (point) (point-max) 'gnus-undeletable t))
6085 (goto-char (point-max)))
6086 ;; Do highlighting.
6087 (save-excursion
6088 (save-restriction
6089 (narrow-to-region beg (point))
6090 (if (eq handle gnus-article-mime-handles)
6091 ;; The format=flowed case.
6092 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
6093 ;; Don't count signature parts that are never displayed.
6094 ;; The part number should be re-calculated supposing this
6095 ;; might be a message/rfc822 part.
6096 (let (handles)
6097 (dolist (part gnus-article-mime-handles)
6098 (unless (or (stringp part)
6099 (equal (car (mm-handle-type part))
6100 "application/pgp-signature"))
6101 (push part handles)))
6102 (gnus-treat-article
6103 nil (length (memq handle handles)) (length handles)
6104 (mm-handle-media-type handle)))))))))))
6106 (defun gnus-unbuttonized-mime-type-p (type)
6107 "Say whether TYPE is to be unbuttonized."
6108 (unless gnus-inhibit-mime-unbuttonizing
6109 (when (catch 'found
6110 (let ((types gnus-unbuttonized-mime-types))
6111 (while types
6112 (when (string-match (pop types) type)
6113 (throw 'found t)))))
6114 (not (catch 'found
6115 (let ((types gnus-buttonized-mime-types))
6116 (while types
6117 (when (string-match (pop types) type)
6118 (throw 'found t)))))))))
6120 (defun gnus-article-insert-newline ()
6121 "Insert a newline, but mark it as undeletable."
6122 (gnus-put-text-property
6125 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
6126 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
6127 (ihandles handles)
6128 (point (point))
6129 handle (inhibit-read-only t) from props begend not-pref)
6130 (save-window-excursion
6131 (save-restriction
6132 (when ibegend
6133 (narrow-to-region (car ibegend)
6134 (or (cdr ibegend)
6135 (progn
6136 (goto-char (car ibegend))
6137 (forward-line 2)
6138 (point))))
6139 (delete-region (point-min) (point-max))
6140 (mm-remove-parts handles))
6141 (setq begend (list (point-marker)))
6142 ;; Do the toggle.
6143 (unless (setq not-pref (cadr (member preferred ihandles)))
6144 (setq not-pref (car ihandles)))
6145 (when (or ibegend
6146 (not preferred)
6147 (not (gnus-unbuttonized-mime-type-p
6148 "multipart/alternative")))
6149 (gnus-add-text-properties
6150 (setq from (point))
6151 (progn
6152 (insert (format "%d. " id))
6153 (point))
6154 `(gnus-callback
6155 (lambda (handles)
6156 (unless ,(not ibegend)
6157 (setq gnus-article-mime-handle-alist
6158 ',gnus-article-mime-handle-alist))
6159 (gnus-mime-display-alternative
6160 ',ihandles ',not-pref ',begend ,id))
6161 keymap ,gnus-mime-button-map
6162 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6163 face ,gnus-article-button-face
6164 gnus-part ,id
6165 article-type multipart
6166 rear-nonsticky t))
6167 (widget-convert-button 'link from (point)
6168 :action 'gnus-widget-press-button
6169 :button-keymap gnus-widget-button-keymap)
6170 ;; Do the handles
6171 (while (setq handle (pop handles))
6172 (gnus-add-text-properties
6173 (setq from (point))
6174 (progn
6175 (insert (format "(%c) %-18s"
6176 (if (equal handle preferred) ?* ? )
6177 (mm-handle-media-type handle)))
6178 (point))
6179 `(gnus-callback
6180 (lambda (handles)
6181 (unless ,(not ibegend)
6182 (setq gnus-article-mime-handle-alist
6183 ',gnus-article-mime-handle-alist))
6184 (gnus-mime-display-alternative
6185 ',ihandles ',handle ',begend ,id))
6186 keymap ,gnus-mime-button-map
6187 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6188 face ,gnus-article-button-face
6189 gnus-part ,id
6190 gnus-data ,handle
6191 rear-nonsticky t))
6192 (widget-convert-button 'link from (point)
6193 :action 'gnus-widget-press-button
6194 :button-keymap gnus-widget-button-keymap)
6195 (insert " "))
6197 (when preferred
6198 (if (stringp (car preferred))
6199 (gnus-display-mime preferred)
6200 (let ((mail-parse-charset gnus-newsgroup-charset)
6201 (mail-parse-ignored-charsets
6202 (with-current-buffer gnus-summary-buffer
6203 gnus-newsgroup-ignored-charsets)))
6204 (gnus-bind-safe-url-regexp (mm-display-part preferred))
6205 ;; Do highlighting.
6206 (save-excursion
6207 (save-restriction
6208 (narrow-to-region (car begend) (point-max))
6209 (gnus-treat-article
6210 nil (length gnus-article-mime-handle-alist)
6211 (gnus-article-mime-total-parts)
6212 (mm-handle-media-type preferred))))))
6213 (goto-char (point-max))
6214 (setcdr begend (point-marker)))))
6215 (when ibegend
6216 (goto-char point)))
6217 ;; Redraw attachment buttons in the header.
6218 (when gnus-mime-display-attachment-buttons-in-header
6219 (gnus-mime-buttonize-attachments-in-header)))
6221 (defconst gnus-article-wash-status-strings
6222 (let ((alist '((cite "c" "Possible hidden citation text"
6223 " " "All citation text visible")
6224 (headers "h" "Hidden headers"
6225 " " "All headers visible.")
6226 (pgp "p" "Encrypted or signed message status hidden"
6227 " " "No hidden encryption nor digital signature status")
6228 (signature "s" "Signature has been hidden"
6229 " " "Signature is visible")
6230 (overstrike "o" "Overstrike (^H) characters applied"
6231 " " "No overstrike characters applied")
6232 (emphasis "e" "/*_Emphasis_*/ characters applied"
6233 " " "No /*_emphasis_*/ characters applied")))
6234 result)
6235 (dolist (entry alist result)
6236 (let ((key (nth 0 entry))
6237 (on (copy-sequence (nth 1 entry)))
6238 (on-help (nth 2 entry))
6239 (off (copy-sequence (nth 3 entry)))
6240 (off-help (nth 4 entry)))
6241 (put-text-property 0 1 'help-echo on-help on)
6242 (put-text-property 0 1 'help-echo off-help off)
6243 (push (list key on off) result))))
6244 "Alist of strings describing wash status in the mode line.
6245 Each entry has the form (KEY ON OF), where the KEY is a symbol
6246 representing the particular washing function, ON is the string to use
6247 in the article mode line when the washing function is active, and OFF
6248 is the string to use when it is inactive.")
6250 (defun gnus-article-wash-status-entry (key value)
6251 (let ((entry (assoc key gnus-article-wash-status-strings)))
6252 (if value (nth 1 entry) (nth 2 entry))))
6254 (defun gnus-article-wash-status ()
6255 "Return a string which display status of article washing."
6256 (with-current-buffer gnus-article-buffer
6257 (let ((cite (memq 'cite gnus-article-wash-types))
6258 (headers (memq 'headers gnus-article-wash-types))
6259 (boring (memq 'boring-headers gnus-article-wash-types))
6260 (pgp (memq 'pgp gnus-article-wash-types))
6261 (pem (memq 'pem gnus-article-wash-types))
6262 (signed (memq 'signed gnus-article-wash-types))
6263 (encrypted (memq 'encrypted gnus-article-wash-types))
6264 (signature (memq 'signature gnus-article-wash-types))
6265 (overstrike (memq 'overstrike gnus-article-wash-types))
6266 (emphasis (memq 'emphasis gnus-article-wash-types)))
6267 (concat
6268 (gnus-article-wash-status-entry 'cite cite)
6269 (gnus-article-wash-status-entry 'headers (or headers boring))
6270 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
6271 (gnus-article-wash-status-entry 'signature signature)
6272 (gnus-article-wash-status-entry 'overstrike overstrike)
6273 (gnus-article-wash-status-entry 'emphasis emphasis)))))
6275 (defun gnus-add-wash-type (type)
6276 "Add a washing of TYPE to the current status."
6277 (add-to-list 'gnus-article-wash-types type))
6279 (defun gnus-delete-wash-type (type)
6280 "Add a washing of TYPE to the current status."
6281 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
6283 (defun gnus-add-image (category image)
6284 "Add IMAGE of CATEGORY to the list of displayed images."
6285 (let ((entry (assq category gnus-article-image-alist)))
6286 (unless entry
6287 (setq entry (list category))
6288 (push entry gnus-article-image-alist))
6289 (nconc entry (list image))))
6291 (defun gnus-delete-images (category)
6292 "Delete all images in CATEGORY."
6293 (let ((entry (assq category gnus-article-image-alist)))
6294 (dolist (image (cdr entry))
6295 (gnus-remove-image image category))
6296 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
6297 (gnus-delete-wash-type category)))
6299 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6301 (defun gnus-article-maybe-hide-headers ()
6302 "Hide unwanted headers if `gnus-have-all-headers' is nil.
6303 Provided for backwards compatibility."
6304 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
6305 (not (with-current-buffer gnus-summary-buffer
6306 gnus-have-all-headers)))
6307 (not gnus-inhibit-hiding))
6308 (gnus-article-hide-headers)))
6310 (declare-function shr-put-image "shr" (data alt &optional flags))
6312 (defun gnus-shr-put-image (data alt &optional flags)
6313 "Put image DATA with a string ALT. Enable image to be deleted."
6314 (let ((image (if flags
6315 (shr-put-image data (propertize (or alt "*")
6316 'gnus-image-category 'shr)
6317 flags)
6318 ;; Old `shr-put-image' doesn't take the optional `flags'
6319 ;; argument.
6320 (shr-put-image data (propertize (or alt "*")
6321 'gnus-image-category 'shr)))))
6322 (when image
6323 (gnus-add-image 'shr image))))
6325 (defun gnus-mime-buttonize-attachments-in-header (&optional interactive)
6326 "Show attachments as buttons in the end of the header of an article.
6327 This function toggles the display when called interactively. Note that
6328 buttons to be added to the header are only the ones that aren't inlined
6329 in the body. Use `gnus-header-face-alist' to highlight buttons."
6330 (interactive (list t))
6331 (gnus-with-article-buffer
6332 (gmm-labels
6333 ;; Function that returns a flattened version of
6334 ;; `gnus-article-mime-handle-alist'.
6335 ((flattened-alist
6336 (&optional alist id all)
6337 (if alist
6338 (let ((i 1) newid flat)
6339 (dolist (handle alist flat)
6340 (setq newid (append id (list i))
6341 i (1+ i))
6342 (if (stringp (car handle))
6343 (setq flat (nconc flat (flattened-alist (cdr handle)
6344 newid all)))
6345 (delq (rassq handle all) all)
6346 (setq flat (nconc flat (list (cons newid handle)))))))
6347 (let ((flat (list nil)))
6348 ;; Assume that elements of `gnus-article-mime-handle-alist'
6349 ;; are in the decreasing order, but unnumbered subsidiaries
6350 ;; in each element are in the increasing order.
6351 (dolist (handle (reverse gnus-article-mime-handle-alist))
6352 (if (stringp (cadr handle))
6353 (setq flat (nconc flat (flattened-alist (cddr handle)
6354 (list (car handle))
6355 flat)))
6356 (delq (rassq (cdr handle) flat) flat)
6357 (setq flat (nconc flat (list (cons (list (car handle))
6358 (cdr handle)))))))
6359 (setq flat (cdr flat))
6360 (mapc (lambda (handle)
6361 (if (cdar handle)
6362 ;; This is a hidden (i.e. unnumbered) handle.
6363 (progn
6364 (setcar handle
6365 (1+ (caar gnus-article-mime-handle-alist)))
6366 (push handle gnus-article-mime-handle-alist))
6367 (setcar handle (caar handle))))
6368 flat)
6369 flat))))
6370 (let ((case-fold-search t) buttons st handle)
6371 (save-excursion
6372 (save-restriction
6373 (widen)
6374 (article-narrow-to-head)
6375 ;; Header buttons exist?
6376 (while (and (not buttons)
6378 (when (get-char-property (match-end 0)
6379 'gnus-button-attachment-extra)
6380 (setq buttons (match-beginning 0))))
6381 (widen)
6382 (when buttons
6383 ;; Delete header buttons.
6384 (delete-region buttons (if (re-search-forward "^[^ ]" nil t)
6385 (match-beginning 0)
6386 (point-max))))
6387 (unless (and interactive buttons)
6388 ;; Find buttons.
6389 (setq buttons nil)
6390 (dolist (handle (flattened-alist))
6391 (when (and (not (stringp (cadr handle)))
6392 (or (equal (car (mm-handle-disposition
6393 (cdr handle)))
6394 "attachment")
6395 (not (and (mm-inlinable-p (cdr handle))
6396 (mm-inlined-p (cdr handle))))))
6397 (push handle buttons)))
6398 (when buttons
6399 ;; Add header buttons.
6400 (article-goto-body)
6401 (forward-line -1)
6402 (narrow-to-region (point) (point))
6403 (insert "Attachment" (if (cdr buttons) "s" "") ":")
6404 (dolist (button (nreverse buttons))
6405 (setq st (point))
6406 (insert " ")
6407 (mm-handle-set-undisplayer
6408 (setq handle (copy-sequence (cdr button))) nil)
6409 (gnus-insert-mime-button handle (car button))
6411 (delete-region (point) (point-max))
6412 (when (> (current-column) (window-width))
6413 (goto-char st)
6415 (end-of-line)))
6417 (dolist (ovl (gnus-overlays-in (point-min) (point)))
6418 (gnus-overlay-put ovl 'gnus-button-attachment-extra t)
6419 (gnus-overlay-put ovl 'face nil))
6420 (let ((gnus-treatment-function-alist
6421 '((gnus-treat-highlight-headers
6422 gnus-article-highlight-headers))))
6423 (gnus-treat-article 'head))))))))))
6425 ;;; Article savers.
6427 (defun gnus-output-to-file (file-name)
6428 "Append the current article to a file named FILE-NAME.
6429 If `gnus-article-save-coding-system' is non-nil, it is used to encode
6430 text and used as the value of the coding cookie which is added to the
6431 top of a file. Otherwise, this function saves a raw article without
6432 the coding cookie."
6433 (let* ((artbuf (current-buffer))
6434 (file-name-coding-system nnmail-pathname-coding-system)
6435 (coding gnus-article-save-coding-system)
6436 (coding-system-for-read (if coding
6437 nil ;; Rely on the coding cookie.
6438 mm-text-coding-system))
6439 (coding-system-for-write (or coding
6440 mm-text-coding-system-for-write
6441 mm-text-coding-system))
6442 (exists (file-exists-p file-name)))
6443 (with-temp-buffer
6444 (when exists
6445 (insert-file-contents file-name)
6446 (goto-char (point-min))
6447 ;; Remove the existing coding cookie.
6449 (delete-region (match-beginning 0) (match-end 0))))
6450 (goto-char (point-max))
6451 (insert-buffer-substring artbuf)
6452 ;; Append newline at end of the buffer as separator, and then
6453 ;; save it to file.
6454 (goto-char (point-max))
6456 (when coding
6457 ;; If the coding system is not suitable to encode the text,
6458 ;; ask a user for a proper one.
6459 (when (fboundp 'select-safe-coding-system)
6460 (setq coding (coding-system-base
6461 (save-window-excursion
6462 (select-safe-coding-system (point-min) (point-max)
6463 coding))))
6464 (setq coding-system-for-write
6465 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
6466 coding)))
6467 (goto-char (point-min))
6468 ;; Add the coding cookie.
6470 coding-system-for-write)))
6471 (if exists
6472 (progn
6473 (write-region (point-min) (point-max) file-name nil 'no-message)
6474 (message "Appended to %s" file-name))
6475 (write-region (point-min) (point-max) file-name))))
6476 t)
6478 (defun gnus-narrow-to-page (&optional arg)
6479 "Narrow the article buffer to a page.
6480 If given a numerical ARG, move forward ARG pages."
6481 (interactive "P")
6482 (setq arg (if arg (prefix-numeric-value arg) 0))
6483 (with-current-buffer gnus-article-buffer
6484 (widen)
6485 ;; Remove any old next/prev buttons.
6486 (when (gnus-visual-p 'page-marker)
6487 (let ((inhibit-read-only t))
6488 (gnus-remove-text-with-property 'gnus-prev)
6489 (gnus-remove-text-with-property 'gnus-next)))
6490 (let (st nd pt)
6491 (when (save-excursion
6492 (cond ((< arg 0)
6493 (if (re-search-backward page-delimiter nil 'move (abs arg))
6494 (prog1
6495 (setq nd (match-beginning 0)
6496 pt nd)
6497 (when (re-search-backward page-delimiter nil t)
6498 (setq st (match-end 0))))
6499 (when (re-search-forward page-delimiter nil t)
6500 (setq nd (match-beginning 0)
6501 pt (point-min)))))
6502 ((> arg 0)
6503 (if (re-search-forward page-delimiter nil 'move arg)
6504 (prog1
6505 (setq st (match-end 0)
6506 pt st)
6507 (when (re-search-forward page-delimiter nil t)
6508 (setq nd (match-beginning 0))))
6509 (when (re-search-backward page-delimiter nil t)
6510 (setq st (match-end 0)
6511 pt (point-max)))))
6512 (t
6513 (when (re-search-backward page-delimiter nil t)
6514 (goto-char (setq st (match-end 0))))
6515 (when (re-search-forward page-delimiter nil t)
6516 (setq nd (match-beginning 0)))
6517 (or st nd))))
6518 (setq gnus-page-broken t)
6519 (when pt (goto-char pt))
6520 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6521 (when (gnus-visual-p 'page-marker)
6522 (save-excursion
6523 (when nd
6524 (goto-char nd)
6525 (gnus-insert-next-page-button))
6526 (when st
6527 (goto-char st)
6528 (gnus-insert-prev-page-button))))))))
6530 ;; Article mode commands
6532 (defun gnus-article-goto-next-page ()
6533 "Show the next page of the article."
6534 (interactive)
6535 (when (gnus-article-next-page)
6536 (goto-char (point-min))
6537 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
6540 (defun gnus-article-goto-prev-page ()
6541 "Show the previous page of the article."
6542 (interactive)
6543 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6544 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
6545 (gnus-article-prev-page nil)))
6547 ;; This is cleaner but currently breaks `gnus-pick-mode':
6548 ;;
6549 ;; (defun gnus-article-goto-next-page ()
6550 ;; "Show the next page of the article."
6551 ;; (interactive)
6552 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6553 ;; (gnus-summary-next-page)))
6554 ;;
6555 ;; (defun gnus-article-goto-prev-page ()
6556 ;; "Show the next page of the article."
6557 ;; (interactive)
6558 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6559 ;; (gnus-summary-prev-page)))
6561 (defun gnus-article-next-page (&optional lines)
6562 "Show the next page of the current article.
6563 If end of article, return non-nil. Otherwise return nil.
6564 Argument LINES specifies lines to be scrolled up."
6565 (interactive "p")
6566 (move-to-window-line (if (featurep 'xemacs) -1 (- -1 scroll-margin)))
6567 (if (and (not (and gnus-article-over-scroll
6568 (> (count-lines (window-start) (point-max))
6569 (if (featurep 'xemacs)
6570 (or lines (1- (window-height)))
6571 (+ (or lines (1- (window-height))) scroll-margin)))))
6572 (save-excursion
6573 (end-of-line)
6574 (and (pos-visible-in-window-p) ;Not continuation line.
6575 (>= (point) (point-max)))))
6576 ;; Nothing in this page.
6577 (if (or (not gnus-page-broken)
6578 (save-excursion
6579 (save-restriction
6580 (widen)
6581 (forward-line)
6582 (eobp)))) ;Real end-of-buffer?
6583 (progn
6584 (when gnus-article-over-scroll
6585 (gnus-article-next-page-1 lines))
6586 t) ;Nothing more.
6587 (gnus-narrow-to-page 1) ;Go to next page.
6588 nil)
6589 ;; More in this page.
6590 (gnus-article-next-page-1 lines)
6591 nil))
6593 (defun gnus-article-beginning-of-window ()
6594 "Move point to the beginning of the window.
6595 In Emacs, the point is placed at the line number which `scroll-margin'
6596 specifies."
6597 (if (featurep 'xemacs)
6598 (move-to-window-line 0)
6599 ;; There is an obscure bug in Emacs that makes it impossible to
6600 ;; scroll past big pictures in the article buffer. Try to fix
6601 ;; this by adding a sanity check by counting the lines visible.
6602 (when (> (count-lines (window-start) (window-end)) 30)
6603 (move-to-window-line
6604 (min (max 0 scroll-margin)
6605 (max 1 (- (window-height)
6606 (if mode-line-format 1 0)
6607 (if header-line-format 1 0)
6608 2)))))))
6610 (defun gnus-article-next-page-1 (lines)
6611 (condition-case ()
6612 (let ((scroll-in-place nil)
6613 (auto-window-vscroll nil))
6614 (scroll-up lines))
6615 (end-of-buffer
6616 ;; Long lines may cause an end-of-buffer error.
6617 (goto-char (point-max))))
6618 (gnus-article-beginning-of-window))
6620 (defun gnus-article-prev-page (&optional lines)
6621 "Show previous page of current article.
6622 Argument LINES specifies lines to be scrolled down."
6623 (interactive "p")
6624 (move-to-window-line 0)
6625 (if (and gnus-page-broken
6626 (bobp)
6627 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6628 (progn
6629 (gnus-narrow-to-page -1) ;Go to previous page.
6630 (goto-char (point-max))
6631 (recenter (if gnus-article-over-scroll
6632 (if lines
6633 (max (if (featurep 'xemacs)
6634 lines
6635 (+ lines scroll-margin))
6636 3)
6637 (- (window-height) 2))
6638 -1)))
6639 (prog1
6640 (condition-case ()
6641 (let ((scroll-in-place nil))
6642 (scroll-down lines))
6643 (beginning-of-buffer
6644 (goto-char (point-min))))
6645 (gnus-article-beginning-of-window))))
6647 (defun gnus-article-only-boring-p ()
6648 "Decide whether there is only boring text remaining in the article.
6650 not have a face in `gnus-article-boring-faces'."
6651 (when (and gnus-article-skip-boring
6652 (boundp 'gnus-article-boring-faces)
6653 (symbol-value 'gnus-article-boring-faces))
6654 (save-excursion
6655 (let ((inhibit-point-motion-hooks t))
6656 (catch 'only-boring
6658 (forward-char -1)
6659 (when (not (gnus-intersection
6660 (gnus-faces-at (point))
6661 (symbol-value 'gnus-article-boring-faces)))
6662 (throw 'only-boring nil)))
6663 (throw 'only-boring t))))))
6665 (defun gnus-article-refer-article ()
6666 "Read article specified by message-id around point."
6667 (interactive)
6668 (save-excursion
6672 (let ((msg-id (concat "<" (match-string 0) ">")))
6673 (set-buffer gnus-summary-buffer)
6674 (gnus-summary-refer-article msg-id))
6675 (error "No references around point"))))
6677 (defun gnus-article-show-summary ()
6678 "Reconfigure windows to show summary buffer."
6679 (interactive)
6680 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6681 (error "There is no summary buffer for this article buffer")
6682 (gnus-article-set-globals)
6683 (gnus-configure-windows 'article)
6684 (gnus-summary-goto-subject gnus-current-article)
6685 (gnus-summary-position-point)))
6687 (defun gnus-article-describe-briefly ()
6688 "Describe article mode commands briefly."
6689 (interactive)
6690 (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")))
6692 (defun gnus-article-check-buffer ()
6693 "Beep if not in an article buffer."
6694 (unless (derived-mode-p 'gnus-article-mode)
6695 (error "Command invoked outside of a Gnus article buffer")))
6697 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
6698 "Read a summary buffer key sequence and execute it from the article buffer."
6699 (interactive "P")
6700 (gnus-article-check-buffer)
6701 (let ((nosaves
6702 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6703 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6704 "=" "^" "\M-^" "|"))
6705 (nosave-but-article
6707 "An" "Ap" [?A (meta return)] [?A delete]))
6708 (nosave-in-article
6709 '("AS" "\C-d"))
6710 (up-to-top
6711 '("n" "Gn" "p" "Gp"))
6712 keys new-sum-point)
6713 (with-current-buffer gnus-article-current-summary
6714 (let (gnus-pick-mode)
6715 (setq unread-command-events (nconc unread-command-events
6716 (list (or key last-command-event)))
6717 keys (if (featurep 'xemacs)
6718 (events-to-keys (read-key-sequence nil t))
6719 (read-key-sequence nil t)))))
6721 (message "")
6723 (cond
6724 ((eq (aref keys (1- (length keys))) ?\C-h)
6725 (gnus-article-describe-bindings (substring keys 0 -1)))
6726 ((or (member keys nosaves)
6727 (member keys nosave-but-article)
6728 (member keys nosave-in-article))
6729 (let (func)
6730 (save-window-excursion
6731 (pop-to-buffer gnus-article-current-summary)
6732 ;; We disable the pick minor mode commands.
6733 (let (gnus-pick-mode)
6734 (setq func (key-binding keys t))))
6735 (if (or (not func)
6736 (numberp func))
6737 (ding)
6738 (unless (member keys nosave-in-article)
6739 (set-buffer gnus-article-current-summary))
6740 (when (and (symbolp func)
6741 (get func 'disabled))
6742 (error "Function %s disabled" func))
6743 (call-interactively func)
6744 (setq new-sum-point (point)))
6745 (when (member keys nosave-but-article)
6746 (pop-to-buffer gnus-article-buffer))))
6747 (t
6748 ;; These commands should restore window configuration.
6749 (let ((obuf (current-buffer))
6750 (owin (current-window-configuration))
6751 win func in-buffer selected new-sum-start new-sum-hscroll err)
6752 (cond (not-restore-window
6753 (pop-to-buffer gnus-article-current-summary)
6754 (setq win (selected-window)))
6755 ((setq win (get-buffer-window gnus-article-current-summary))
6756 (select-window win))
6757 (t
6758 (let ((summary-buffer gnus-article-current-summary))
6759 (gnus-configure-windows 'article)
6760 (unless (setq win (get-buffer-window summary-buffer 'visible))
6761 (let ((gnus-buffer-configuration
6762 '((article ((vertical 1.0
6763 (summary 0.25 point)
6764 (article 1.0)))))))
6765 (gnus-configure-windows 'article))
6766 (setq win (get-buffer-window summary-buffer 'visible)))
6767 (gnus-select-frame-set-input-focus (window-frame win))
6768 (select-window win))))
6769 (setq in-buffer (current-buffer))
6770 ;; We disable the pick minor mode commands.
6771 (setq func (let (gnus-pick-mode)
6772 (key-binding keys t)))
6773 (when (get func 'disabled)
6774 (error "Function %s disabled" func))
6775 (if (and func
6776 (functionp func)
6777 (condition-case code
6778 (progn
6779 (call-interactively func)
6780 t)
6781 (error
6782 (setq err code)
6783 nil)))
6784 (progn
6785 (when (eq win (selected-window))
6786 (setq new-sum-point (point)
6787 new-sum-start (window-start win)
6788 new-sum-hscroll (window-hscroll win)))
6789 (when (or (eq in-buffer (current-buffer))
6790 (when (eq obuf (current-buffer))
6791 (set-buffer in-buffer)
6792 t))
6793 (setq selected (gnus-summary-select-article))
6794 (set-buffer obuf)
6795 (unless not-restore-window
6796 (set-window-configuration owin))
6797 (when (and (eq selected 'old)
6798 new-sum-point)
6799 (set-window-start (get-buffer-window (current-buffer))
6800 1)
6801 (set-window-point (get-buffer-window (current-buffer))
6802 (if (article-goto-body)
6803 (1- (point))
6804 (point))))
6805 (when (and (not not-restore-window)
6806 new-sum-point
6807 (window-live-p win)
6808 (with-current-buffer (window-buffer win)
6809 (derived-mode-p 'gnus-summary-mode)))
6810 (set-window-point win new-sum-point)
6811 (set-window-start win new-sum-start)
6812 (set-window-hscroll win new-sum-hscroll))))
6813 (set-window-configuration owin)
6814 (if err
6815 (signal (car err) (cdr err))
6816 (ding))))))))
6818 (defun gnus-article-read-summary-send-keys ()
6819 (interactive)
6820 (let ((unread-command-events (list (gnus-character-to-event ?S))))
6821 (gnus-article-read-summary-keys)))
6823 (defun gnus-article-describe-key (key)
6824 "Display documentation of the function invoked by KEY.
6825 KEY is a string or a vector."
6826 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6827 (read-key-sequence "Describe key: "))))
6828 (gnus-article-check-buffer)
6829 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6830 gnus-article-read-summary-send-keys))
6831 (with-current-buffer gnus-article-current-summary
6832 (setq unread-command-events
6833 (if (featurep 'xemacs)
6834 (append key nil)
6835 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6836 (list 'meta (- x 128))
6837 x))
6838 key)))
6839 (let ((cursor-in-echo-area t)
6840 gnus-pick-mode)
6841 (describe-key (read-key-sequence nil t))))
6842 (describe-key key)))
6844 (defun gnus-article-describe-key-briefly (key &optional insert)
6845 "Display documentation of the function invoked by KEY.
6846 KEY is a string or a vector."
6847 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6848 (read-key-sequence "Describe key: "))
6849 current-prefix-arg))
6850 (gnus-article-check-buffer)
6851 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6852 gnus-article-read-summary-send-keys))
6853 (with-current-buffer gnus-article-current-summary
6854 (setq unread-command-events
6855 (if (featurep 'xemacs)
6856 (append key nil)
6857 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6858 (list 'meta (- x 128))
6859 x))
6860 key)))
6861 (let ((cursor-in-echo-area t)
6862 gnus-pick-mode)
6863 (describe-key-briefly (read-key-sequence nil t) insert)))
6864 (describe-key-briefly key insert)))
6866 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6867 (defvar gnus-agent-summary-mode)
6868 (defvar gnus-draft-mode)
6869 (defvar help-xref-stack-item)
6871 (defun gnus-article-describe-bindings (&optional prefix)
6872 "Show a list of all defined keys, and their definitions.
6873 The optional argument PREFIX, if non-nil, should be a key sequence;
6874 then we display only bindings that start with that prefix."
6875 (interactive)
6876 (gnus-article-check-buffer)
6877 (let ((keymap (copy-keymap gnus-article-mode-map))
6878 (map (copy-keymap gnus-article-send-map))
6879 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6880 parent agent draft)
6881 (define-key keymap "S" map)
6882 (define-key map [t] nil)
6883 (with-current-buffer gnus-article-current-summary
6884 (set-keymap-parent
6885 keymap
6886 (if (setq parent (keymap-parent gnus-article-mode-map))
6887 (prog1
6888 (setq parent (copy-keymap parent))
6889 (set-keymap-parent parent (current-local-map)))
6890 (current-local-map)))
6891 (set-keymap-parent map (key-binding "S"))
6892 (let (key def gnus-pick-mode)
6893 (while sumkeys
6894 (setq key (pop sumkeys))
6895 (cond ((and (vectorp key) (= (length key) 1)
6896 (consp (setq def (aref key 0)))
6897 (numberp (car def)) (numberp (cdr def)))
6898 (when (< (max (car def) (cdr def)) 128)
6899 (setq sumkeys
6900 (append (mapcar
6901 #'vector
6902 (nreverse (gnus-uncompress-range def)))
6903 sumkeys))))
6904 ((setq def (key-binding key))
6905 (unless (eq def 'undefined)
6906 (define-key keymap key def))))))
6907 (when (boundp 'gnus-agent-summary-mode)
6908 (setq agent gnus-agent-summary-mode))
6909 (when (boundp 'gnus-draft-mode)
6910 (setq draft gnus-draft-mode)))
6911 (with-temp-buffer
6912 (use-local-map keymap)
6913 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6914 (set (make-local-variable 'gnus-draft-mode) draft)
6915 (describe-bindings prefix))
6916 (let ((item `((lambda (prefix)
6917 (with-current-buffer ,(current-buffer)
6918 (gnus-article-describe-bindings prefix)))
6919 ,prefix)))
6920 ;; Loading `help-mode' here is necessary if `describe-bindings'
6921 ;; is replaced with something, e.g. `helm-descbinds'.
6922 (require 'help-mode)
6923 (with-current-buffer (let (help-xref-following) (help-buffer))
6924 (setq help-xref-stack-item item)))))
6926 (defun gnus-article-reply-with-original (&optional wide)
6927 "Start composing a reply mail to the current message.
6928 The text in the region will be yanked. If the region isn't active,
6929 the entire article will be yanked."
6930 (interactive)
6931 (let ((article (cdr gnus-article-current))
6932 contents)
6933 (if (not (gnus-region-active-p))
6934 (with-current-buffer gnus-summary-buffer
6935 (gnus-summary-reply (list (list article)) wide))
6936 (setq contents (buffer-substring (point) (mark t)))
6937 ;; Deactivate active regions.
6938 (when (and (boundp 'transient-mark-mode)
6939 transient-mark-mode)
6940 (setq mark-active nil))
6941 (with-current-buffer gnus-summary-buffer
6942 (gnus-summary-reply
6943 (list (list article contents)) wide)))))
6945 (defun gnus-article-wide-reply-with-original ()
6946 "Start composing a wide reply mail to the current message.
6947 The text in the region will be yanked. If the region isn't active,
6948 the entire article will be yanked."
6949 (interactive)
6950 (gnus-article-reply-with-original t))
6952 (defun gnus-article-followup-with-original ()
6953 "Compose a followup to the current article.
6954 The text in the region will be yanked. If the region isn't active,
6955 the entire article will be yanked."
6956 (interactive)
6957 (let ((article (cdr gnus-article-current))
6958 contents)
6959 (if (not (gnus-region-active-p))
6960 (with-current-buffer gnus-summary-buffer
6961 (gnus-summary-followup (list (list article))))
6962 (setq contents (buffer-substring (point) (mark t)))
6963 ;; Deactivate active regions.
6964 (when (and (boundp 'transient-mark-mode)
6965 transient-mark-mode)
6966 (setq mark-active nil))
6967 (with-current-buffer gnus-summary-buffer
6968 (gnus-summary-followup
6969 (list (list article contents)))))))
6971 (defun gnus-article-hide (&optional arg force)
6972 "Hide all the gruft in the current article.
6973 This means that signatures, cited text and (some) headers will be
6974 hidden.
6975 If given a prefix, show the hidden text instead."
6976 (interactive (append (gnus-article-hidden-arg) (list 'force)))
6977 (gnus-article-hide-headers arg)
6978 (gnus-article-hide-list-identifiers arg)
6979 (gnus-article-hide-citation-maybe arg force)
6980 (gnus-article-hide-signature arg))
6982 (defun gnus-check-group-server ()
6983 ;; Make sure the connection to the server is alive.
6984 (unless (gnus-server-opened
6985 (gnus-find-method-for-group gnus-newsgroup-name))
6986 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
6987 (gnus-request-group gnus-newsgroup-name t)))
6989 (eval-when-compile
6990 (autoload 'nneething-get-file-name "nneething"))
6992 (defun gnus-request-article-this-buffer (article group)
6993 "Get an article and insert it into this buffer."
6994 (let (do-update-line sparse-header)
6995 (prog1
6996 (save-excursion
6997 (erase-buffer)
6998 (gnus-kill-all-overlays)
6999 (setq group (or group gnus-newsgroup-name))
7001 ;; Using `gnus-request-article' directly will insert the article into
7002 ;; `nntp-server-buffer' - so we'll save some time by not having to
7003 ;; copy it from the server buffer into the article buffer.
7005 ;; We only request an article by message-id when we do not have the
7006 ;; headers for it, so we'll have to get those.
7007 (when (stringp article)
7008 (gnus-read-header article))
7010 ;; If the article number is negative, that means that this article
7011 ;; doesn't belong in this newsgroup (possibly), so we find its
7012 ;; message-id and request it by id instead of number.
7013 (when (and (numberp article)
7014 gnus-summary-buffer
7015 (get-buffer gnus-summary-buffer)
7016 (gnus-buffer-exists-p gnus-summary-buffer))
7017 (with-current-buffer gnus-summary-buffer
7018 (let ((header (gnus-summary-article-header article)))
7019 (when (< article 0)
7020 (cond
7021 ((memq article gnus-newsgroup-sparse)
7022 ;; This is a sparse gap article.
7023 (setq do-update-line article)
7024 (setq article (mail-header-id header))
7025 (setq sparse-header (gnus-read-header article))
7026 (setq gnus-newsgroup-sparse
7027 (delq article gnus-newsgroup-sparse)))
7028 ((vectorp header)
7029 ;; It's a real article.
7030 (setq article (mail-header-id header)))
7031 (t
7032 ;; It is an extracted pseudo-article.
7033 (setq article 'pseudo)
7034 (gnus-request-pseudo-article header))))
7036 (let ((method (gnus-find-method-for-group
7037 gnus-newsgroup-name)))
7038 (when (and (eq (car method) 'nneething)
7039 (vectorp header))
7040 (let ((dir (nneething-get-file-name
7041 (mail-header-id header))))
7042 (when (and (stringp dir)
7043 (file-directory-p dir))
7044 (setq article 'nneething)
7045 (gnus-group-enter-directory dir))))))))
7047 (cond
7048 ;; Refuse to select canceled articles.
7049 ((and (numberp article)
7050 gnus-summary-buffer
7051 (get-buffer gnus-summary-buffer)
7052 (gnus-buffer-exists-p gnus-summary-buffer)
7053 (eq (cdr (with-current-buffer gnus-summary-buffer
7054 (assq article gnus-newsgroup-reads)))
7055 gnus-canceled-mark))
7056 nil)
7057 ;; We first check `gnus-original-article-buffer'.
7058 ((and (get-buffer gnus-original-article-buffer)
7059 (numberp article)
7060 (with-current-buffer gnus-original-article-buffer
7061 (and (equal (car gnus-original-article) group)
7062 (eq (cdr gnus-original-article) article))))
7063 ;; `insert-buffer-substring' would incorrectly use the
7064 ;; equivalent of string-make-multibyte which amount to decoding
7065 ;; with locale-coding-system, causing failure of
7066 ;; subsequent decoding.
7067 (insert (mm-string-to-multibyte
7068 (with-current-buffer gnus-original-article-buffer
7069 (buffer-substring (point-min) (point-max)))))
7070 'article)
7071 ;; Check the backlog.
7072 ((and gnus-keep-backlog
7073 (gnus-backlog-request-article group article (current-buffer)))
7074 'article)
7075 ;; Check asynchronous pre-fetch.
7076 ((gnus-async-request-fetched-article group article (current-buffer))
7077 (gnus-async-prefetch-next group article gnus-summary-buffer)
7078 (when (and (numberp article) gnus-keep-backlog)
7079 (gnus-backlog-enter-article group article (current-buffer)))
7080 'article)
7081 ;; Check the cache.
7082 ((and gnus-use-cache
7083 (numberp article)
7084 (gnus-cache-request-article article group))
7085 'article)
7086 ;; Check the agent cache.
7087 ((gnus-agent-request-article article group)
7088 'article)
7089 ;; Get the article and put into the article buffer.
7090 ((or (stringp article)
7091 (numberp article))
7092 (let ((gnus-override-method gnus-override-method)
7093 (methods (and (stringp article)
7094 (with-current-buffer gnus-summary-buffer
7095 (gnus-refer-article-methods))))
7096 (backend (car (gnus-find-method-for-group
7097 gnus-newsgroup-name)))
7098 result
7099 (inhibit-read-only t))
7100 (when (and (null gnus-override-method)
7101 methods)
7102 (setq gnus-override-method (pop methods)))
7103 (while (not result)
7104 (erase-buffer)
7105 (gnus-kill-all-overlays)
7106 (let ((gnus-newsgroup-name group))
7107 (gnus-check-group-server))
7108 (cond
7109 ((gnus-request-article article group (current-buffer))
7110 (when (numberp article)
7111 (gnus-async-prefetch-next group article
7112 gnus-summary-buffer)
7113 (when gnus-keep-backlog
7114 (gnus-backlog-enter-article
7115 group article (current-buffer)))
7116 (when (and gnus-agent
7117 (gnus-agent-group-covered-p group))
7118 (gnus-agent-store-article article group)))
7119 (setq result 'article))
7120 (methods
7121 (setq gnus-override-method (pop methods)))
7122 ((not (string-match "^400 "
7123 (nnheader-get-report backend)))
7124 ;; If we get 400 server disconnect, reconnect and
7125 ;; retry; otherwise, assume the article has expired.
7126 (setq result 'done))))
7127 (and (eq result 'article) 'article)))
7128 ;; It was a pseudo.
7129 (t article)))
7131 ;; Associate this article with the current summary buffer.
7132 (setq gnus-article-current-summary gnus-summary-buffer)
7134 ;; Take the article from the original article buffer
7135 ;; and place it in the buffer it's supposed to be in.
7136 (when (and (get-buffer gnus-article-buffer)
7137 (equal (buffer-name (current-buffer))
7138 (buffer-name (get-buffer gnus-article-buffer))))
7139 (save-excursion
7140 (if (get-buffer gnus-original-article-buffer)
7141 (set-buffer gnus-original-article-buffer)
7142 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
7143 (buffer-disable-undo)
7144 (setq major-mode 'gnus-original-article-mode)
7145 (setq buffer-read-only t))
7146 (let ((inhibit-read-only t))
7147 (erase-buffer)
7148 (insert-buffer-substring gnus-article-buffer))
7149 (setq gnus-original-article (cons group article)))
7151 ;; Decode charsets.
7152 (run-hooks 'gnus-article-decode-hook)
7153 ;; Mark article as decoded or not.
7154 (setq gnus-article-decoded-p gnus-article-decode-hook))
7156 ;; Update sparse articles.
7157 (when (and do-update-line
7158 (or (numberp article)
7159 (stringp article)))
7160 (let ((buf (current-buffer)))
7161 (set-buffer gnus-summary-buffer)
7162 (gnus-summary-update-article do-update-line sparse-header)
7163 (gnus-summary-goto-subject do-update-line nil t)
7164 (set-window-point (gnus-get-buffer-window (current-buffer) t)
7165 (point))
7166 (set-buffer buf))))))
7168 (defun gnus-block-private-groups (group)
7169 (if (or (gnus-news-group-p group)
7170 (gnus-member-of-valid 'global group))
7171 ;; Block nothing in news groups.
7172 nil
7173 ;; Block everything anywhere else.
7174 "."))
7176 (defun gnus-blocked-images ()
7177 (if (functionp gnus-blocked-images)
7178 (funcall gnus-blocked-images gnus-newsgroup-name)
7179 gnus-blocked-images))
7181 ;;;
7182 ;;; Article editing
7183 ;;;
7185 (defcustom gnus-article-edit-mode-hook nil
7186 "Hook run in article edit mode buffers."
7187 :group 'gnus-article-various
7188 :type 'hook)
7190 (defvar gnus-article-edit-done-function nil)
7192 (defvar gnus-article-edit-mode-map nil)
7194 ;; Should we be using derived.el for this?
7195 (unless gnus-article-edit-mode-map
7196 (setq gnus-article-edit-mode-map (make-keymap))
7197 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
7199 (gnus-define-keys gnus-article-edit-mode-map
7200 "\C-c?" describe-mode
7201 "\C-c\C-c" gnus-article-edit-done
7202 "\C-c\C-k" gnus-article-edit-exit
7203 "\C-c\C-f\C-t" message-goto-to
7204 "\C-c\C-f\C-o" message-goto-from
7205 "\C-c\C-f\C-b" message-goto-bcc
7206 ;;"\C-c\C-f\C-w" message-goto-fcc
7207 "\C-c\C-f\C-c" message-goto-cc
7208 "\C-c\C-f\C-s" message-goto-subject
7209 "\C-c\C-f\C-r" message-goto-reply-to
7210 "\C-c\C-f\C-n" message-goto-newsgroups
7211 "\C-c\C-f\C-d" message-goto-distribution
7212 "\C-c\C-f\C-f" message-goto-followup-to
7213 "\C-c\C-f\C-m" message-goto-mail-followup-to
7214 "\C-c\C-f\C-k" message-goto-keywords
7215 "\C-c\C-f\C-u" message-goto-summary
7216 "\C-c\C-f\C-i" message-insert-or-toggle-importance
7217 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
7218 "\C-c\C-b" message-goto-body
7219 "\C-c\C-i" message-goto-signature
7221 "\C-c\C-t" message-insert-to
7222 "\C-c\C-n" message-insert-newsgroups
7223 "\C-c\C-o" message-sort-headers
7224 "\C-c\C-e" message-elide-region
7225 "\C-c\C-v" message-delete-not-region
7226 "\C-c\C-z" message-kill-to-signature
7228 "\C-c\C-a" mml-attach-file
7229 "\C-a" message-beginning-of-line
7231 "\M-;" comment-region)
7233 (gnus-define-keys (gnus-article-edit-wash-map
7234 "\C-c\C-w" gnus-article-edit-mode-map)
7235 "f" gnus-article-edit-full-stops))
7237 (easy-menu-define
7238 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
7239 '("Field"
7240 ["Fetch To" message-insert-to t]
7241 ["Fetch Newsgroups" message-insert-newsgroups t]
7242 "----"
7243 ["To" message-goto-to t]
7244 ["From" message-goto-from t]
7245 ["Subject" message-goto-subject t]
7246 ["Cc" message-goto-cc t]
7247 ["Reply-To" message-goto-reply-to t]
7248 ["Summary" message-goto-summary t]
7249 ["Keywords" message-goto-keywords t]
7250 ["Newsgroups" message-goto-newsgroups t]
7251 ["Followup-To" message-goto-followup-to t]
7252 ["Mail-Followup-To" message-goto-mail-followup-to t]
7253 ["Distribution" message-goto-distribution t]
7254 ["Body" message-goto-body t]
7255 ["Signature" message-goto-signature t]))
7257 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
7258 "Major mode for editing articles.
7259 This is an extended text-mode.
7262 (make-local-variable 'gnus-article-edit-done-function)
7263 (make-local-variable 'gnus-prev-winconf)
7264 (set (make-local-variable 'font-lock-defaults)
7265 '(message-font-lock-keywords t))
7266 (set (make-local-variable 'mail-header-separator) "")
7267 (set (make-local-variable 'gnus-article-edit-mode) t)
7268 (easy-menu-add message-mode-field-menu message-mode-map)
7269 (mml-mode)
7270 (setq buffer-read-only nil)
7271 (buffer-enable-undo)
7272 (widen))
7274 (defun gnus-article-edit (&optional force)
7275 "Edit the current article.
7276 This will have permanent effect only in mail groups.
7277 If FORCE is non-nil, allow editing of articles even in read-only
7278 groups."
7279 (interactive "P")
7280 (when (and (not force)
7281 (gnus-group-read-only-p))
7282 (error "The current newsgroup does not support article editing"))
7283 (gnus-article-date-original)
7284 (gnus-article-edit-article
7285 'ignore
7286 `(lambda (no-highlight)
7287 'ignore
7288 (gnus-summary-edit-article-done
7289 ,(or (mail-header-references gnus-current-headers) "")
7290 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
7292 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
7293 "Start editing the contents of the current article buffer."
7294 (let ((winconf (current-window-configuration)))
7295 (set-buffer gnus-article-buffer)
7296 (let ((message-auto-save-directory
7297 ;; Don't associate the article buffer with a draft file.
7298 nil))
7299 (gnus-article-edit-mode))
7300 (funcall start-func)
7301 (set-buffer-modified-p nil)
7302 (gnus-configure-windows 'edit-article)
7303 (setq gnus-article-edit-done-function exit-func)
7304 (setq gnus-prev-winconf winconf)
7305 (unless quiet
7306 (gnus-message 6 "C-c C-c to end edits"))))
7308 (defun gnus-article-edit-done (&optional arg)
7309 "Update the article edits and exit."
7310 (interactive "P")
7311 (let ((func gnus-article-edit-done-function)
7312 (buf (current-buffer))
7313 (start (window-start))
7314 (p (point))
7315 (winconf gnus-prev-winconf))
7316 (widen) ;; Widen it in case that users narrowed the buffer.
7317 (funcall func arg)
7318 (set-buffer buf)
7319 ;; The cache and backlog have to be flushed somewhat.
7320 (when gnus-keep-backlog
7321 (gnus-backlog-remove-article
7322 (car gnus-article-current) (cdr gnus-article-current)))
7323 ;; Flush original article as well.
7324 (gnus-flush-original-article-buffer)
7325 (when gnus-use-cache
7326 (gnus-cache-update-article
7327 (car gnus-article-current) (cdr gnus-article-current)))
7328 ;; We remove all text props from the article buffer.
7329 (kill-all-local-variables)
7330 (set-text-properties (point-min) (point-max) nil)
7331 (gnus-article-mode)
7332 (set-window-configuration winconf)
7333 (set-buffer buf)
7334 (set-window-start (get-buffer-window buf) start)
7335 (set-window-point (get-buffer-window buf) (point)))
7336 (gnus-summary-show-article))
7338 (defun gnus-flush-original-article-buffer ()
7339 (when (get-buffer gnus-original-article-buffer)
7340 (with-current-buffer gnus-original-article-buffer
7341 (setq gnus-original-article nil))))
7343 (defun gnus-article-edit-exit ()
7344 "Exit the article editing without updating."
7345 (interactive)
7346 (when (or (not (buffer-modified-p))
7347 (yes-or-no-p "Article modified; kill anyway? "))
7348 (let ((curbuf (current-buffer))
7349 (p (point))
7350 (window-start (window-start)))
7351 (erase-buffer)
7352 (if (gnus-buffer-live-p gnus-original-article-buffer)
7353 (insert-buffer-substring gnus-original-article-buffer))
7354 (let ((winconf gnus-prev-winconf))
7355 (kill-all-local-variables)
7356 (gnus-article-mode)
7357 (set-window-configuration winconf)
7358 ;; Tippy-toe some to make sure that point remains where it was.
7359 (save-current-buffer
7360 (set-buffer curbuf)
7361 (set-window-start (get-buffer-window (current-buffer)) window-start)
7362 (goto-char p))))
7363 (gnus-summary-show-article)))
7365 (defun gnus-article-edit-full-stops ()
7366 "Interactively repair spacing at end of sentences."
7367 (interactive)
7368 (save-excursion
7369 (goto-char (point-min))
7370 (search-forward-regexp "^$" nil t)
7371 (let ((case-fold-search nil))
7374 ;;;
7375 ;;; Article highlights
7376 ;;;
7378 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
7380 ;;; Internal Variables:
7382 (defcustom gnus-button-url-regexp
7383 (concat
7387 (if (string-match "[[:digit:]]" "1") ;; Support POSIX?
7389 (punct "!?:;.,"))
7390 (concat
7392 ;; Match paired parentheses, e.g. in Wikipedia URLs:
7393 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
7394 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)"
7397 "[" chars punct "]+" "[" chars "]"
7399 (concat ;; XEmacs 21.4 doesn't support POSIX.
7403 "Regular expression that matches URLs."
7404 :version "24.4"
7405 :group 'gnus-article-buttons
7406 :type 'regexp)
7408 (defcustom gnus-button-valid-fqdn-regexp
7409 message-valid-fqdn-regexp
7410 "Regular expression that matches a valid FQDN."
7411 :version "22.1"
7412 :group 'gnus-article-buttons
7413 :type 'regexp)
7415 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
7416 (defcustom gnus-button-valid-localpart-regexp
7418 "Regular expression that matches a localpart of mail addresses or MIDs."
7419 :version "22.1"
7420 :group 'gnus-article-buttons
7421 :type 'regexp)
7423 (defcustom gnus-button-man-handler 'manual-entry
7424 "Function to use for displaying man pages.
7425 The function must take at least one argument with a string naming the
7426 man page."
7427 :version "22.1"
7428 :type '(choice (function-item :tag "Man" manual-entry)
7429 (function-item :tag "Woman" woman)
7430 (function :tag "Other"))
7431 :group 'gnus-article-buttons)
7433 (defcustom gnus-button-mid-or-mail-regexp
7435 gnus-button-valid-fqdn-regexp
7437 "Regular expression that matches a message ID or a mail address."
7438 :version "22.1"
7439 :group 'gnus-article-buttons
7440 :type 'regexp)
7442 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
7444 Strings like this can be either a message ID or a mail address. If it is one
7445 of the symbols `mid' or `mail', Gnus will always assume that the string is a
7446 message ID or a mail address, respectively. If this variable is set to the
7447 symbol `ask', always query the user what do do. If it is a function, this
7448 function will be called with the string as its only argument. The function
7449 must return `mid', `mail', `invalid' or `ask'."
7450 :version "22.1"
7451 :group 'gnus-article-buttons
7452 :type '(choice (function-item :tag "Heuristic function"
7453 gnus-button-mid-or-mail-heuristic)
7454 (const ask)
7455 (const mid)
7456 (const mail)))
7458 (defcustom gnus-button-mid-or-mail-heuristic-alist
7460 (-10.0 . "#")
7463 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7464 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7465 (-1.0 . "^[^a-z]+@")
7466 ;;
7468 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7469 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7471 ;;
7472 (-2.0 . "^[0-9]")
7473 (-1.0 . "^[0-9][0-9]")
7474 ;;
7475 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7476 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7477 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7478 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7479 ;;
7480 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7481 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7482 ;; "[0-9]{8,}.*\@"
7483 (-3.0
7484 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7485 ;; "[0-9]{12,}.*\@"
7486 ;; compensation for TDMA dated mail addresses:
7487 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7488 ;;
7490 (-20.0 . "^slrn")
7491 (-20.0 . "^Pine")
7493 (-20.0 . "_-_") ;; Subject change in thread
7494 ;;
7498 ;;
7499 ;; (5.0 . "") ;; $local_part_len <= 7
7500 (10.0 . "^[^0-9]+@")
7501 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7502 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7503 (3.0 . "\@stud")
7504 ;;
7505 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7506 ;;
7507 (0.5 . "^[A-Z][a-z]")
7508 (0.5 . "^[A-Z][a-z][a-z]")
7509 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7510 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7511 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
7513 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7514 address. The REGEXP is processed with `case-fold-search' set to nil."
7515 :version "22.1"
7516 :group 'gnus-article-buttons
7517 :type '(repeat (cons (number :tag "Rate")
7518 (regexp :tag "Regexp"))))
7520 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7521 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7522 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7523 address, `ask' if unsure and `invalid' if the string is invalid."
7524 (let ((case-fold-search nil)
7525 (list gnus-button-mid-or-mail-heuristic-alist)
7526 (result 0) rate regexp lpartlen elem)
7527 (setq lpartlen
7529 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7530 ;; Certain special cases...
7531 (when (string-match
7532 (concat
7536 mid-or-mail)
7537 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7538 (setq result 'mail))
7540 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7541 (setq result 'invalid))
7542 ;; Nothing more to do, if result is not a number here...
7543 (when (numberp result)
7544 (while list
7545 (setq elem (car list)
7546 rate (car elem)
7547 regexp (cdr elem)
7548 list (cdr list))
7549 (when (string-match regexp mid-or-mail)
7550 (setq result (+ result rate))
7551 (gnus-message
7552 9 "`%s' matched `%s', rate `%s', result `%s'."
7553 mid-or-mail regexp rate result)))
7554 (when (<= lpartlen 7)
7555 (setq result (+ result 5.0))
7556 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7557 mid-or-mail result))
7558 (when (>= lpartlen 12)
7559 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7560 (cond
7561 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7562 ;; Long local part should contain realname if e-mail address,
7563 ;; too many digits: message-id.
7564 ;; $score -= 5.0 + 0.1 * $local_part_len;
7565 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7566 (setq result (+ result rate))
7567 (gnus-message
7568 9 "Many digits in `%s', rate `%s', result `%s'."
7569 mid-or-mail rate result))
7570 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
7571 mid-or-mail)
7572 ;; Too few vowels [^aeiouy]{4,}.*\@
7573 (setq result (+ result -5.0))
7574 (gnus-message
7575 9 "Few vowels in `%s', rate `%s', result `%s'."
7576 mid-or-mail -5.0 result))
7577 (t
7578 (setq result (+ result 5.0))
7579 (gnus-message
7580 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7581 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7582 ;; Maybe we should make this a customizable alist: (condition . 'result)
7583 (cond
7584 ((symbolp result) result)
7585 ;; Now convert number into proper results:
7586 ((< result -10.0) 'mid)
7587 ((> result 10.0) 'mail)
7588 (t 'ask))))
7590 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7591 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7592 (url-mid (concat "news" ":" mid-or-mail))
7593 (url-mailto (concat "mailto" ":" mid-or-mail)))
7594 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7595 (when (fboundp pref)
7596 (setq guessed
7597 ;; get rid of surrounding angles...
7598 (funcall pref
7600 (if (or (eq 'mid guessed) (eq 'mail guessed))
7601 (setq pref guessed)
7602 (setq pref 'ask)))
7603 (if (eq pref 'ask)
7604 (save-window-excursion
7605 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7606 (setq pref 'mail)
7607 (setq pref 'mid))))
7608 (cond ((eq pref 'mid)
7609 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7610 (gnus-button-handle-news url-mid))
7611 ((eq pref 'mail)
7612 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7613 (gnus-url-mailto url-mailto))
7614 (t (gnus-message 3 "Invalid string.")))))
7616 (defun gnus-button-handle-custom (fun arg)
7617 "Call function FUN on argument ARG.
7618 Both FUN and ARG are supposed to be strings. ARG will be passed
7619 as a symbol to FUN."
7620 (funcall (intern fun)
7621 (if (string-match "^customize-apropos" fun)
7622 arg
7623 (intern arg))))
7627 (defun gnus-button-handle-describe-function (url)
7628 "Call `describe-function' when pushing the corresponding URL button."
7629 (describe-function
7630 (intern
7631 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7633 (defun gnus-button-handle-describe-variable (url)
7634 "Call `describe-variable' when pushing the corresponding URL button."
7635 (describe-variable
7636 (intern
7637 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7639 (defun gnus-button-handle-symbol (url)
7640 "Display help on variable or function.
7641 Calls `describe-variable' or `describe-function'."
7642 (let ((sym (intern url)))
7643 (cond
7644 ((fboundp sym) (describe-function sym))
7645 ((boundp sym) (describe-variable sym))
7646 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7648 (defun gnus-button-handle-describe-key (url)
7649 "Call `describe-key' when pushing the corresponding URL button."
7650 (let* ((key-string
7651 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
7652 (keys (ignore-errors (eval `(kbd ,key-string)))))
7653 (if keys
7654 (describe-key keys)
7655 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7657 (defun gnus-button-handle-apropos (url)
7658 "Call `apropos' when pushing the corresponding URL button."
7659 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7661 (defun gnus-button-handle-apropos-command (url)
7662 "Call `apropos' when pushing the corresponding URL button."
7663 (apropos-command
7664 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7666 (defun gnus-button-handle-apropos-variable (url)
7667 "Call `apropos' when pushing the corresponding URL button."
7668 (funcall
7669 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
7670 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7672 (defun gnus-button-handle-apropos-documentation (url)
7673 "Call `apropos' when pushing the corresponding URL button."
7674 (funcall
7675 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
7676 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7678 (defun gnus-button-handle-library (url)
7679 "Call `locate-library' when pushing the corresponding URL button."
7680 (gnus-message 9 "url=`%s'" url)
7681 (let* ((lib (locate-library url))
7682 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
7683 (if (not lib)
7684 (gnus-message 1 "Cannot locale library `%s'." url)
7685 (find-file-read-only file))))
7687 (defcustom gnus-button-man-level 5
7688 "*Integer that says how many man-related buttons Gnus will show.
7689 The higher the number, the more buttons will appear and the more false
7690 positives are possible. Note that you can set this variable local to
7691 specific groups. Setting it higher in Unix groups is probably a good idea.
7692 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7693 how to set variables in specific groups."
7694 :version "22.1"
7695 :group 'gnus-article-buttons
7696 :link '(custom-manual "(gnus)Group Parameters")
7697 :type 'integer)
7699 (defcustom gnus-button-emacs-level 5
7700 "*Integer that says how many emacs-related buttons Gnus will show.
7701 The higher the number, the more buttons will appear and the more false
7702 positives are possible. Note that you can set this variable local to
7703 specific groups. Setting it higher in Emacs or Gnus related groups is
7704 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7705 `gnus-parameters' on how to set variables in specific groups."
7706 :version "22.1"
7707 :group 'gnus-article-buttons
7708 :link '(custom-manual "(gnus)Group Parameters")
7709 :type 'integer)
7711 (defcustom gnus-button-message-level 5
7712 "*Integer that says how many buttons for news or mail messages will appear.
7713 The higher the number, the more buttons will appear and the more false
7714 positives are possible."
7715 ;; mail addresses, MIDs, URLs for news, ...
7716 :version "22.1"
7717 :group 'gnus-article-buttons
7718 :type 'integer)
7720 (defcustom gnus-button-browse-level 5
7721 "*Integer that says how many buttons for browsing will appear.
7722 The higher the number, the more buttons will appear and the more false
7723 positives are possible."
7724 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7725 :version "22.1"
7726 :group 'gnus-article-buttons
7727 :type 'integer)
7729 (defcustom gnus-button-alist
7731 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7734 0 t gnus-button-handle-news 2)
7736 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7738 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7739 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7741 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7743 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7745 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7747 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7748 ;; RFC 2368 (The mailto URL scheme)
7750 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7752 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7753 ;; Info Konqueror style <info:/foo/bar baz>.
7754 ;; Must come before " Gnus home-grown style".
7756 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7757 ;; Info, Gnus home-grown style (deprecated) <info://foo/bar+baz>
7759 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7760 ;; Info GNOME style <info:foo#bar_baz>
7762 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7763 ;; Info KDE style <info:(foo)bar baz>
7765 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7767 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7768 ("\\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,]*\\)\\)?"
7769 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7770 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7771 ;; This is custom
7773 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7774 ;; Emacs help commands
7776 ;; regexp doesn't match arguments containing ` '.
7777 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7779 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7781 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7783 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7784 ;; The following entries may lead to many false positives so don't enable
7785 ;; them by default (use a high button level).
7787 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7788 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7790 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7792 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7794 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7796 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7798 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7800 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7802 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7804 ;; Unlike the other regexps we really have to require quoting
7805 ;; here to determine where it ends.
7806 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7807 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7809 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7810 ;; RFC 2396 (2.4.3., delims) ...
7812 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7813 ;; Raw URLs.
7814 (gnus-button-url-regexp
7815 0 (>= gnus-button-browse-level 0) browse-url 0)
7816 ;; man pages
7818 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7819 gnus-button-handle-man 1)
7820 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7822 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7823 gnus-button-handle-man 1)
7824 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7825 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7827 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7828 ;; Recognizing patches to .el files. This is somewhat obscure,
7829 ;; but considering the percentage of Gnus users who hack Emacs
7830 ;; Lisp files...
7832 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7834 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7835 ;; MID or mail: To avoid too many false positives we don't try to catch
7836 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7837 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7838 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7839 ;; so that non-ambiguous entries (see above) match first.
7840 (gnus-button-mid-or-mail-regexp
7841 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7842 "*Alist of regexps matching buttons in article bodies.
7844 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7845 REGEXP: is the string (case insensitive) matching text around the button (can
7846 also be Lisp expression evaluating to a string),
7847 BUTTON: is the number of the regexp grouping actually matching the button,
7848 FORM: is a Lisp expression which must eval to true for the button to
7849 be added,
7850 CALLBACK: is the function to call when the user push this button, and each
7851 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7853 CALLBACK can also be a variable, in that case the value of that
7854 variable it the real callback function."
7855 :group 'gnus-article-buttons
7856 :type '(repeat (list (choice regexp variable sexp)
7857 (integer :tag "Button")
7858 (sexp :tag "Form")
7859 (function :tag "Callback")
7860 (repeat :tag "Par"
7861 :inline t
7862 (integer :tag "Regexp group")))))
7863 (put 'gnus-button-alist 'risky-local-variable t)
7865 (defcustom gnus-header-button-alist
7867 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7869 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7871 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7872 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7873 0 (>= gnus-button-browse-level 0) browse-url 0)
7874 ("^Subject:" gnus-button-url-regexp
7875 0 (>= gnus-button-browse-level 0) browse-url 0)
7876 ("^[^:]+:" gnus-button-url-regexp
7877 0 (>= gnus-button-browse-level 0) browse-url 0)
7878 ("^OpenPGP:.*url=" gnus-button-url-regexp
7879 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7881 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7883 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7884 "*Alist of headers and regexps to match buttons in article heads.
7886 This alist is very similar to `gnus-button-alist', except that each
7887 alist has an additional HEADER element first in each entry:
7889 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7891 HEADER is a regexp to match a header. For a fuller explanation, see
7892 `gnus-button-alist'."
7893 :group 'gnus-article-buttons
7894 :group 'gnus-article-headers
7895 :type '(repeat (list (regexp :tag "Header")
7896 (choice regexp variable)
7897 (integer :tag "Button")
7898 (sexp :tag "Form")
7899 (function :tag "Callback")
7900 (repeat :tag "Par"
7901 :inline t
7902 (integer :tag "Regexp group")))))
7903 (put 'gnus-header-button-alist 'risky-local-variable t)
7905 ;;; Commands:
7907 (defun gnus-article-push-button (event)
7908 "Check text under the mouse pointer for a callback function.
7909 If the text under the mouse pointer has a `gnus-callback' property,
7910 call it with the value of the `gnus-data' text property."
7911 (interactive "e")
7912 (set-buffer (window-buffer (posn-window (event-start event))))
7913 (let* ((pos (posn-point (event-start event)))
7914 (data (get-text-property pos 'gnus-data))
7915 (fun (get-text-property pos 'gnus-callback)))
7916 (goto-char pos)
7917 (when fun
7918 (funcall fun data))))
7920 (defun gnus-article-press-button ()
7921 "Check text at point for a callback function.
7922 If the text at point has a `gnus-callback' property,
7923 call it with the value of the `gnus-data' text property."
7924 (interactive)
7925 (let ((data (get-text-property (point) 'gnus-data))
7926 (fun (get-text-property (point) 'gnus-callback)))
7927 (when fun
7928 (funcall fun data))))
7930 (defun gnus-article-highlight (&optional force)
7931 "Highlight current article.
7932 This function calls `gnus-article-highlight-headers',
7933 `gnus-article-highlight-citation',
7934 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7935 do the highlighting. See the documentation for those functions."
7936 (interactive (list 'force))
7937 (gnus-article-highlight-headers)
7938 (gnus-article-highlight-citation force)
7939 (gnus-article-highlight-signature)
7940 (gnus-article-add-buttons)
7941 (gnus-article-add-buttons-to-head))
7943 (defun gnus-article-highlight-some (&optional force)
7944 "Highlight current article.
7945 This function calls `gnus-article-highlight-headers',
7946 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7947 do the highlighting. See the documentation for those functions."
7948 (interactive (list 'force))
7949 (gnus-article-highlight-headers)
7950 (gnus-article-highlight-signature)
7951 (gnus-article-add-buttons))
7953 (defun gnus-article-highlight-headers ()
7954 "Highlight article headers as specified by `gnus-header-face-alist'."
7955 (interactive)
7956 (gnus-with-article-headers
7957 (let (regexp header-face field-face from hpoints fpoints)
7958 (dolist (entry gnus-header-face-alist)
7959 (goto-char (point-min))
7961 (if (string-equal "" (nth 0 entry))
7963 (nth 0 entry))
7965 header-face (nth 1 entry)
7966 field-face (nth 2 entry))
7967 (while (and (re-search-forward regexp nil t)
7968 (not (eobp)))
7969 (beginning-of-line)
7970 (setq from (point))
7971 (unless (search-forward ":" nil t)
7972 (forward-char 1))
7973 (when (and header-face
7974 (not (memq (point) hpoints)))
7975 (push (point) hpoints)
7976 (gnus-put-text-property from (point) 'face header-face))
7977 (when (and field-face
7978 (not (memq (setq from (point)) fpoints)))
7979 (push from fpoints)
7981 (forward-char -2)
7982 (goto-char (point-max)))
7983 (gnus-put-text-property from (point) 'face field-face)))))))
7985 (defun gnus-article-highlight-signature ()
7986 "Highlight the signature in an article.
7987 It does this by highlighting everything after
7988 `gnus-signature-separator' using the face `gnus-signature'."
7989 (interactive)
7990 (gnus-with-article-buffer
7991 (let ((inhibit-point-motion-hooks t))
7992 (save-restriction
7993 (when (and gnus-signature-face
7994 (gnus-article-narrow-to-signature))
7995 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max) nil t)
7996 'face gnus-signature-face)
7997 (widen)
7998 (gnus-article-search-signature)
7999 (let ((start (match-beginning 0))
8000 (end (set-marker (make-marker) (1+ (match-end 0)))))
8001 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
8002 end)))))))
8004 (defun gnus-button-in-region-p (b e prop)
8005 "Say whether PROP exists in the region."
8006 (text-property-not-all b e prop nil))
8008 (defun gnus-article-add-buttons ()
8009 "Find external references in the article and make buttons of them.
8011 specified by `gnus-button-alist'."
8012 (interactive)
8013 (gnus-with-article-buffer
8014 (let ((inhibit-point-motion-hooks t)
8015 (case-fold-search t)
8016 (alist gnus-button-alist)
8017 beg entry regexp)
8018 ;; We skip the headers.
8019 (article-goto-body)
8020 (setq beg (point))
8021 (while (setq entry (pop alist))
8022 (setq regexp (eval (car entry)))
8023 (goto-char beg)
8024 (while (re-search-forward regexp nil t)
8025 (let ((start (match-beginning (nth 1 entry)))
8026 (end (match-end (nth 1 entry)))
8027 (from (match-beginning 0)))
8028 (when (and (eval (nth 2 entry))
8029 (not (gnus-button-in-region-p
8030 start end 'gnus-callback)))
8031 ;; That optional form returned non-nil, so we add the
8032 ;; button.
8033 (setq from (set-marker (make-marker) from))
8034 (unless (and (eq (car entry) 'gnus-button-url-regexp)
8035 (gnus-article-extend-url-button from start end))
8036 (gnus-article-add-button start end
8037 'gnus-button-push (list from entry))
8038 (gnus-put-text-property
8039 start end
8040 'gnus-string (buffer-substring-no-properties
8041 start end))))))))))
8043 (defun gnus-article-extend-url-button (beg start end)
8044 "Extend url button if url is folded into two or more lines.
8045 Return non-nil if button is extended. BEG is a marker that points to
8046 the beginning position of a text containing url. START and END are
8047 the endpoints of a url button before it is extended. The concatenated
8048 url is put as the `gnus-button-url' overlay property on the button."
8049 (let ((opoint (point))
8050 (points (list start end))
8051 url delim regexp)
8052 (prog1
8053 (when (and (progn
8054 (goto-char end)
8056 (progn
8057 (goto-char start)
8058 (string-match
8060 (buffer-substring (point-at-bol) start)))
8061 (progn
8062 (setq url (list (buffer-substring start end))
8064 (beginning-of-line)
8065 (setq regexp (concat
8066 (when (and (looking-at
8067 message-cite-prefix-regexp)
8068 (< (match-end 0) start))
8069 (regexp-quote (match-string 0)))
8070 "\
8073 (while (progn
8074 (forward-line 1)
8075 (and (looking-at regexp)
8076 (prog1
8077 (match-beginning 1)
8078 (push (or (match-string 2)
8079 (match-string 1))
8080 url)
8081 (push (setq end (or (match-end 2)
8082 (match-end 1)))
8083 points)
8084 (push (or (match-beginning 2)
8085 (match-beginning 1))
8086 points)))))
8087 (match-beginning 2)))
8088 (let (gnus-article-mouse-face widget-mouse-face)
8089 (while points
8090 (gnus-article-add-button (pop points) (pop points)
8091 'gnus-button-push
8092 (list beg (assq 'gnus-button-url-regexp
8093 gnus-button-alist)))))
8094 (let ((overlay (gnus-make-overlay start end)))
8095 (gnus-overlay-put overlay 'evaporate t)
8096 (gnus-overlay-put overlay 'gnus-button-url
8097 (list (mapconcat 'identity (nreverse url) "")))
8098 (when gnus-article-mouse-face
8099 (gnus-overlay-put overlay 'mouse-face gnus-article-mouse-face)))
8100 t)
8101 (goto-char opoint))))
8103 ;; Add buttons to the head of an article.
8104 (defun gnus-article-add-buttons-to-head ()
8105 "Add buttons to the head of the article."
8106 (interactive)
8107 (gnus-with-article-headers
8108 (let (beg end)
8109 (dolist (entry gnus-header-button-alist)
8110 ;; Each alist entry.
8111 (goto-char (point-min))
8112 (while (re-search-forward (car entry) nil t)
8113 ;; Each header matching the entry.
8114 (setq beg (match-beginning 0))
8116 (match-beginning 0))
8117 (point-max)))
8118 (goto-char beg)
8119 (while (re-search-forward (eval (nth 1 entry)) end t)
8120 ;; Each match within a header.
8121 (let* ((entry (cdr entry))
8122 (start (match-beginning (nth 1 entry)))
8123 (end (match-end (nth 1 entry)))
8124 (form (nth 2 entry)))
8125 (goto-char (match-end 0))
8126 (when (eval form)
8127 (gnus-article-add-button
8128 start end (nth 3 entry)
8129 (buffer-substring (match-beginning (nth 4 entry))
8130 (match-end (nth 4 entry)))))))
8131 (goto-char end))))))
8133 ;;; External functions:
8135 (defun gnus-article-add-button (from to fun &optional data text)
8136 "Create a button between FROM and TO with callback FUN and data DATA."
8137 (when gnus-article-button-face
8138 (gnus-overlay-put (gnus-make-overlay from to nil t)
8139 'face gnus-article-button-face))
8140 (gnus-add-text-properties
8141 from to
8142 (nconc (and gnus-article-mouse-face
8143 (list gnus-mouse-face-prop gnus-article-mouse-face))
8144 (list 'gnus-callback fun)
8145 (and data (list 'gnus-data data))))
8146 (widget-convert-button 'link from to :action 'gnus-widget-press-button
8147 :help-echo (or text "Follow the link")
8148 :keymap gnus-url-button-map
8149 :button-keymap gnus-widget-button-keymap))
8151 (defun gnus-article-copy-string ()
8152 "Copy the string in the button to the kill ring."
8153 (interactive)
8154 (gnus-article-check-buffer)
8155 (let ((data (get-text-property (point) 'gnus-string)))
8156 (when data
8157 (with-temp-buffer
8158 (insert data)
8159 (copy-region-as-kill (point-min) (point-max))
8160 (message "Copied %s" data)))))
8162 ;;; Internal functions:
8164 (defun gnus-article-set-globals ()
8165 (with-current-buffer gnus-summary-buffer
8166 (gnus-set-global-variables)))
8168 (defun gnus-signature-toggle (end)
8169 (gnus-with-article-buffer
8170 (let ((inhibit-point-motion-hooks t))
8171 (if (text-property-any end (point-max) 'article-type 'signature)
8172 (progn
8173 (gnus-delete-wash-type 'signature)
8174 (gnus-remove-text-properties-when
8175 'article-type 'signature end (point-max)
8176 (cons 'article-type (cons 'signature
8177 gnus-hidden-properties))))
8178 (gnus-add-wash-type 'signature)
8179 (gnus-add-text-properties-when
8180 'article-type nil end (point-max)
8181 (cons 'article-type (cons 'signature
8182 gnus-hidden-properties)))))
8183 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
8184 (gnus-set-mode-line 'article))))
8186 (defun gnus-button-push (marker-and-entry)
8187 ;; Push button starting at MARKER.
8188 (save-excursion
8189 (let* ((marker (car marker-and-entry))
8190 (entry (cadr marker-and-entry))
8191 (regexp (car entry))
8192 (inhibit-point-motion-hooks t))
8193 (goto-char marker)
8194 ;; This is obviously true, or something bad is happening :)
8195 ;; But we need it to have the match-data
8196 (when (looking-at (or (if (symbolp regexp)
8197 (symbol-value regexp)
8198 regexp)))
8199 (let ((fun (nth 3 entry))
8200 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
8201 (get-char-property marker 'gnus-button-url))
8202 (mapcar (lambda (group)
8203 (let ((string (match-string group)))
8204 (set-text-properties
8205 0 (length string) nil string)
8206 string))
8207 (nthcdr 4 entry)))))
8209 (cond
8210 ((fboundp fun)
8211 (apply fun args))
8212 ((and (boundp fun)
8213 (fboundp (symbol-value fun)))
8214 (apply (symbol-value fun) args))
8215 (t
8216 (gnus-message 1 "You must define `%S' to use this button"
8217 (cons fun args)))))))))
8219 (defun gnus-parse-news-url (url)
8220 (let (scheme server port group message-id articles)
8221 (with-temp-buffer
8222 (insert url)
8223 (goto-char (point-min))
8225 (setq scheme (match-string 1))
8226 (goto-char (match-end 0)))
8228 (setq server (match-string 1))
8229 (setq port (if (stringp (match-string 3))
8230 (string-to-number (match-string 3))
8231 (match-string 3)))
8232 (goto-char (match-end 0)))
8234 (cond
8236 (setq message-id (match-string 1)))
8238 (setq group (match-string 1)
8239 articles (split-string (match-string 2) "-")))
8241 (setq group (match-string 1)))
8242 (t
8243 (error "Unknown news URL syntax"))))
8244 (list scheme server port group message-id articles)))
8246 (defun gnus-button-handle-news (url)
8247 "Fetch a news URL."
8248 (destructuring-bind (scheme server port group message-id articles)
8249 (gnus-parse-news-url url)
8250 (cond
8251 (message-id
8252 (with-current-buffer gnus-summary-buffer
8253 (if server
8254 (let ((gnus-refer-article-method
8255 (nconc (list (list 'nntp server))
8256 gnus-refer-article-method))
8257 (nntp-port-number (or port "nntp")))
8258 (gnus-message 7 "Fetching %s with %s"
8259 message-id gnus-refer-article-method)
8260 (gnus-summary-refer-article message-id))
8261 (gnus-summary-refer-article message-id))))
8262 (group
8263 (gnus-button-fetch-group url)))))
8265 (defun gnus-button-patch (library line)
8266 "Visit an Emacs Lisp library LIBRARY on line LINE."
8267 (interactive)
8268 (let ((file (locate-library (file-name-nondirectory library))))
8269 (unless file
8270 (error "Couldn't find library %s" library))
8271 (find-file file)
8272 (goto-char (point-min))
8273 (forward-line (1- (string-to-number line)))))
8275 (defun gnus-button-handle-man (url)
8276 "Fetch a man page."
8277 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8278 (when (eq gnus-button-man-handler 'woman)
8280 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8281 (funcall gnus-button-man-handler url))
8283 (defun gnus-button-handle-info-url (url)
8284 "Fetch an info URL."
8285 (setq url (mm-subst-char-in-string ?+ ?\ url))
8286 (cond
8288 (gnus-info-find-node
8289 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
8290 "Gnus")
8291 ")" (gnus-url-unhex-string (match-string 2 url)))))
8293 (setq url
8294 (gnus-replace-in-string
8296 (gnus-info-find-node url))
8297 (t (error "Can't parse %s" url))))
8299 (defun gnus-button-handle-info-url-gnome (url)
8300 "Fetch GNOME style info URL."
8301 (setq url (mm-subst-char-in-string ?_ ?\ url))
8303 (gnus-info-find-node
8304 (concat "("
8305 (gnus-url-unhex-string
8306 (match-string 1 url))
8307 ")"
8308 (or (gnus-url-unhex-string
8309 (match-string 2 url))
8310 "Top")))
8311 (error "Can't parse %s" url)))
8313 (defun gnus-button-handle-info-url-kde (url)
8314 "Fetch KDE style info URL."
8315 (gnus-info-find-node (gnus-url-unhex-string url)))
8317 ;; (info) will autoload info.el
8318 (declare-function Info-menu "info" (menu-item &optional fork))
8319 (declare-function Info-index-next "info" (num))
8321 (defun gnus-button-handle-info-keystrokes (url)
8322 "Call `info' when pushing the corresponding URL button."
8323 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
8324 (let (node indx comma)
8325 (if (string-match
8330 url)
8331 (setq node (match-string 2 url)
8332 indx (match-string 3 url))
8333 (error "Can't parse %s" url))
8334 (info)
8335 (Info-directory)
8336 (Info-menu node)
8337 (when (> (length indx) 0)
8340 indx)
8341 (setq comma (match-string 2 indx))
8342 (setq indx (match-string 1 indx))
8343 (Info-index indx)
8344 (when comma
8345 (dotimes (i (with-temp-buffer
8346 (insert comma)
8347 ;; Note: the XEmacs version of `how-many' takes
8348 ;; no optional argument.
8349 (goto-char (point-min))
8350 (how-many ",")))
8351 (Info-index-next 1)))
8352 nil)))
8354 (autoload 'pgg-snarf-keys-region "pgg")
8355 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
8356 (declare-function pgg-display-output-buffer "pgg" (start end status))
8358 (defun gnus-button-openpgp (url)
8359 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
8360 (with-temp-buffer
8361 (mm-url-insert-file-contents-external url)
8362 (pgg-snarf-keys-region (point-min) (point-max))
8363 (pgg-display-output-buffer nil nil nil)))
8365 (defun gnus-button-message-id (message-id)
8366 "Fetch MESSAGE-ID."
8367 (with-current-buffer gnus-summary-buffer
8368 (gnus-summary-refer-article message-id)))
8370 (defun gnus-button-fetch-group (address &rest ignore)
8371 "Fetch GROUP specified by ADDRESS."
8373 address)
8374 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
8375 ;; for nntp:// and news://
8376 (setq address (match-string 3 address)))
8377 (if (not (string-match "[:/]" address))
8378 ;; This is just a simple group url.
8379 (gnus-group-read-ephemeral-group address gnus-select-method)
8380 (if (not
8381 (string-match
8383 address))
8384 (error "Can't parse %s" address)
8385 (gnus-group-read-ephemeral-group
8386 (match-string 4 address)
8387 `(nntp ,(match-string 1 address)
8388 (nntp-address ,(match-string 1 address))
8389 (nntp-port-number ,(if (match-end 3)
8390 (match-string 3 address)
8391 "nntp")))
8392 nil nil nil
8393 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
8395 (defun gnus-url-parse-query-string (query &optional downcase)
8396 (let (retval pairs cur key val)
8397 (setq pairs (split-string query "&"))
8398 (while pairs
8399 (setq cur (car pairs)
8400 pairs (cdr pairs))
8401 (if (not (string-match "=" cur))
8402 nil ; Grace
8403 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
8404 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
8405 (if downcase
8406 (setq key (downcase key)))
8407 (setq cur (assoc key retval))
8408 (if cur
8409 (setcdr cur (cons val (cdr cur)))
8410 (setq retval (cons (list key val) retval)))))
8411 retval))
8413 (defun gnus-url-mailto (url)
8414 ;; Send mail to someone
8417 (setq url (substring url (match-beginning 1) nil)))
8418 (let (to args subject func)
8419 (setq args (gnus-url-parse-query-string
8421 (substring url 1)
8423 (concat "to=" (match-string 1 url) "&"
8424 (match-string 2 url))
8425 (concat "to=" url))))
8426 subject (cdr-safe (assoc "subject" args)))
8427 (gnus-msg-mail)
8428 (while args
8429 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8430 (if (fboundp func)
8431 (funcall func)
8432 (message-position-on-field (caar args)))
8433 (insert (gnus-replace-in-string
8434 (mapconcat 'identity (reverse (cdar args)) ", ")
8436 (setq args (cdr args)))
8437 (if subject
8438 (message-goto-body)
8439 (message-goto-subject))))
8441 (defun gnus-button-embedded-url (address)
8442 "Activate ADDRESS with `browse-url'."
8443 (browse-url (gnus-strip-whitespace address)))
8445 ;;; Next/prev buttons in the article buffer.
8450 (defvar gnus-prev-page-map
8451 (let ((map (make-sparse-keymap)))
8452 (define-key map gnus-mouse-2 'gnus-button-prev-page)
8454 map))
8456 (defvar gnus-next-page-map
8457 (let ((map (make-sparse-keymap)))
8458 (define-key map gnus-mouse-2 'gnus-button-next-page)
8460 map))
8462 (defun gnus-insert-prev-page-button ()
8463 (let ((b (point)) e
8464 (inhibit-read-only t))
8465 (gnus-eval-format
8466 gnus-prev-page-line-format nil
8467 `(keymap ,gnus-prev-page-map
8468 gnus-prev t
8469 gnus-callback gnus-article-button-prev-page
8470 article-type annotation))
8471 (setq e (if (bolp)
8472 ;; Exclude a newline.
8473 (1- (point))
8474 (point)))
8475 (when gnus-article-button-face
8476 (gnus-overlay-put (gnus-make-overlay b e nil t)
8477 'face gnus-article-button-face))
8478 (widget-convert-button
8479 'link b e
8480 :action 'gnus-button-prev-page
8481 :button-keymap gnus-prev-page-map)))
8483 (defun gnus-button-next-page (&optional args more-args)
8484 "Go to the next page."
8485 (interactive)
8486 (let ((win (selected-window)))
8487 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8488 (gnus-article-next-page)
8489 (select-window win)))
8491 (defun gnus-button-prev-page (&optional args more-args)
8492 "Go to the prev page."
8493 (interactive)
8494 (let ((win (selected-window)))
8495 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8496 (gnus-article-prev-page)
8497 (select-window win)))
8499 (defun gnus-insert-next-page-button ()
8500 (let ((b (point)) e
8501 (inhibit-read-only t))
8502 (gnus-eval-format gnus-next-page-line-format nil
8503 `(keymap ,gnus-next-page-map
8504 gnus-next t
8505 gnus-callback gnus-article-button-next-page
8506 article-type annotation))
8507 (setq e (if (bolp)
8508 ;; Exclude a newline.
8509 (1- (point))
8510 (point)))
8511 (when gnus-article-button-face
8512 (gnus-overlay-put (gnus-make-overlay b e nil t)
8513 'face gnus-article-button-face))
8514 (widget-convert-button
8515 'link b e
8516 :action 'gnus-button-next-page
8517 :button-keymap gnus-next-page-map)))
8519 (defun gnus-article-button-next-page (arg)
8520 "Go to the next page."
8521 (interactive "P")
8522 (let ((win (selected-window)))
8523 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8524 (gnus-article-next-page)
8525 (select-window win)))
8527 (defun gnus-article-button-prev-page (arg)
8528 "Go to the prev page."
8529 (interactive "P")
8530 (let ((win (selected-window)))
8531 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8532 (gnus-article-prev-page)
8533 (select-window win)))
8535 (defvar gnus-decode-header-methods
8536 '(mail-decode-encoded-word-region)
8537 "List of methods used to decode headers.
8539 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8540 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8541 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8542 whose names match REGEXP.
8544 For example:
8546 mail-decode-encoded-word-region
8548 ")
8550 (defvar gnus-decode-header-methods-cache nil)
8552 (defun gnus-multi-decode-header (start end)
8553 "Apply the functions from `gnus-encoded-word-methods' that match."
8554 (unless (and gnus-decode-header-methods-cache
8555 (eq gnus-newsgroup-name
8556 (car gnus-decode-header-methods-cache)))
8557 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8558 (dolist (x gnus-decode-header-methods)
8559 (if (symbolp x)
8560 (nconc gnus-decode-header-methods-cache (list x))
8561 (if (and gnus-newsgroup-name
8562 (string-match (car x) gnus-newsgroup-name))
8563 (nconc gnus-decode-header-methods-cache
8564 (list (cdr x)))))))
8565 (let ((xlist gnus-decode-header-methods-cache))
8566 (pop xlist)
8567 (save-restriction
8568 (narrow-to-region start end)
8569 (while xlist
8570 (funcall (pop xlist) (point-min) (point-max))))))
8572 ;;;
8573 ;;; Treatment top-level handling.
8574 ;;;
8576 (defvar gnus-inhibit-article-treatments nil)
8578 (defun gnus-treat-article (gnus-treat-condition
8579 &optional part-number total-parts gnus-treat-type)
8580 (let ((gnus-treat-length (- (point-max) (point-min)))
8581 (alist gnus-treatment-function-alist)
8582 (article-goto-body-goes-to-point-min-p t)
8583 (treated-type
8584 (or (not gnus-treat-type)
8585 (catch 'found
8586 (let ((list gnus-article-treat-types))
8587 (while list
8588 (when (string-match (pop list) gnus-treat-type)
8589 (throw 'found t)))))))
8590 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8591 val elem)
8592 (gnus-run-hooks 'gnus-part-display-hook)
8593 (dolist (elem alist)
8594 (setq val
8595 (save-excursion
8596 (when (gnus-buffer-live-p gnus-summary-buffer)
8597 (set-buffer gnus-summary-buffer))
8598 (symbol-value (car elem))))
8599 (when (and (or (consp val)
8600 treated-type)
8601 (or (not gnus-inhibit-article-treatments)
8602 (eq gnus-treat-condition 'head))
8603 (gnus-treat-predicate val)
8604 (or (not (get (car elem) 'highlight))
8605 highlightp))
8606 (save-restriction
8607 (funcall (cadr elem)))))))
8609 ;; Dynamic variables.
8610 (defvar part-number)
8611 (defvar total-parts)
8612 (defvar gnus-treat-type)
8613 (defvar gnus-treat-condition)
8614 (defvar gnus-treat-length)
8616 (defun gnus-treat-predicate (val)
8617 (cond
8618 ((null val)
8619 nil)
8620 (gnus-treat-condition
8621 (eq gnus-treat-condition val))
8622 ((and (listp val)
8623 (stringp (car val)))
8624 (apply 'gnus-or (mapcar `(lambda (s)
8625 (string-match s ,(or gnus-newsgroup-name "")))
8626 val)))
8627 ((listp val)
8628 (let ((pred (pop val)))
8629 (cond
8630 ((eq pred 'or)
8631 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8632 ((eq pred 'and)
8633 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8634 ((eq pred 'not)
8635 (not (gnus-treat-predicate (car val))))
8636 ((eq pred 'typep)
8637 (equal (car val) gnus-treat-type))
8638 ((functionp pred)
8639 (funcall pred))
8640 (t
8641 (error "%S is not a valid predicate" pred)))))
8642 ((eq val t)
8643 t)
8644 ((eq val 'head)
8645 nil)
8646 ((eq val 'first)
8647 (eq part-number 1))
8648 ((eq val 'last)
8649 (eq part-number total-parts))
8650 ((numberp val)
8651 (< gnus-treat-length val))
8652 (t
8653 (error "%S is not a valid value" val))))
8655 (defun gnus-article-encrypt-body (protocol &optional n)
8656 "Encrypt the article body."
8657 (interactive
8658 (list
8659 (or gnus-article-encrypt-protocol
8660 (gnus-completing-read "Encrypt protocol"
8661 (mapcar 'car gnus-article-encrypt-protocol-alist)
8662 t))
8663 current-prefix-arg))
8664 ;; User might hit `K E' instead of `K e', so prompt once.
8665 (when (and gnus-article-encrypt-protocol
8666 gnus-novice-user)
8667 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8668 (error "Encrypt aborted")))
8669 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8670 (unless func
8671 (error "Can't find the encrypt protocol %s" protocol))
8672 (if (member gnus-newsgroup-name '("nndraft:delayed"
8673 "nndraft:drafts"
8674 "nndraft:queue"))
8675 (error "Can't encrypt the article in group %s"
8676 gnus-newsgroup-name))
8677 (gnus-summary-iterate n
8678 (with-current-buffer gnus-summary-buffer
8679 (let ((mail-parse-charset gnus-newsgroup-charset)
8680 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8681 (summary-buffer gnus-summary-buffer)
8682 references point)
8683 (gnus-set-global-variables)
8684 (when (gnus-group-read-only-p)
8685 (error "The current newsgroup does not support article encrypt"))
8686 (gnus-summary-show-article t)
8687 (setq references
8688 (or (mail-header-references gnus-current-headers) ""))
8689 (set-buffer gnus-article-buffer)
8690 (let* ((inhibit-read-only t)
8691 (headers
8692 (mapcar (lambda (field)
8693 (and (save-restriction
8694 (message-narrow-to-head)
8695 (goto-char (point-min))
8696 (search-forward field nil t))
8697 (prog2
8698 (message-narrow-to-field)
8699 (buffer-string)
8700 (delete-region (point-min) (point-max))
8701 (widen))))
8702 '("Content-Type:" "Content-Transfer-Encoding:"
8703 "Content-Disposition:"))))
8704 (message-narrow-to-head)
8705 (message-remove-header "MIME-Version")
8706 (goto-char (point-max))
8707 (setq point (point))
8708 (insert (apply 'concat headers))
8709 (widen)
8710 (narrow-to-region point (point-max))
8711 (let ((message-options message-options))
8712 (message-options-set 'message-sender user-mail-address)
8713 (message-options-set 'message-recipients user-mail-address)
8714 (message-options-set 'message-sign-encrypt 'not)
8715 (funcall func))
8716 (goto-char (point-min))
8718 (widen)
8719 (gnus-summary-edit-article-done
8720 references nil summary-buffer t))
8721 (when gnus-keep-backlog
8722 (gnus-backlog-remove-article
8723 (car gnus-article-current) (cdr gnus-article-current)))
8724 (gnus-flush-original-article-buffer)
8725 (when gnus-use-cache
8726 (gnus-cache-update-article
8727 (car gnus-article-current) (cdr gnus-article-current))))))))
8730 "The following specs can be used:
8731 %t The security MIME type
8732 %i Additional info
8733 %d Details
8734 %D Details if button is pressed")
8737 "The following specs can be used:
8738 %t The security MIME type
8739 %i Additional info
8740 %d Details
8741 %D Details if button is pressed")
8743 (defvar gnus-mime-security-button-line-format-alist
8744 '((?t gnus-tmp-type ?s)
8745 (?i gnus-tmp-info ?s)
8746 (?d gnus-tmp-details ?s)
8747 (?D gnus-tmp-pressed-details ?s)))
8749 (defvar gnus-mime-security-button-commands
8751 (undefined "v")
8752 (undefined "t")
8753 (undefined "C")
8754 (gnus-mime-security-save-part "o" "Save...")
8755 (undefined "\C-o")
8756 (undefined "r")
8757 (undefined "d")
8758 (undefined "c")
8759 (undefined "i")
8760 (undefined "E")
8761 (undefined "e")
8762 (undefined "p")
8763 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8764 (undefined ".")))
8766 (defvar gnus-mime-security-button-map
8767 (let ((map (make-sparse-keymap)))
8768 (define-key map gnus-mouse-2 'gnus-article-push-button)
8769 (define-key map gnus-down-mouse-3 'gnus-mime-security-button-menu)
8770 (dolist (c gnus-mime-security-button-commands)
8771 (define-key map (cadr c) (car c)))
8772 map))
8774 (easy-menu-define
8775 gnus-mime-security-button-menu gnus-mime-security-button-map
8776 "Security button menu."
8777 `("Security Part"
8778 ,@(delq nil
8779 (mapcar (lambda (c)
8780 (unless (eq (car c) 'undefined)
8781 (vector (caddr c) (car c) :active t)))
8782 gnus-mime-security-button-commands))))
8784 (defun gnus-mime-security-button-menu (event prefix)
8785 "Construct a context-sensitive menu of security commands."
8787 (save-window-excursion
8788 (let ((pos (event-start event)))
8789 (select-window (posn-window pos))
8790 (goto-char (posn-point pos))
8791 (gnus-article-check-buffer)
8792 (popup-menu gnus-mime-security-button-menu nil prefix))))
8794 (defvar gnus-mime-security-details-buffer nil)
8796 (defvar gnus-mime-security-button-pressed nil)
8798 (defvar gnus-mime-security-show-details-inline t
8799 "If non-nil, show details in the article buffer.")
8801 (defun gnus-mime-security-verify-or-decrypt (handle)
8802 (mm-remove-parts (cdr handle))
8803 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8804 point (inhibit-read-only t))
8805 (if region
8806 (goto-char (car region)))
8807 (setq point (point))
8808 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8809 (let* ((mm-verify-option 'known)
8810 (mm-decrypt-option 'known)
8811 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8812 (unless (eq nparts (cdr handle))
8813 (mm-destroy-parts (cdr handle))
8814 (setcdr handle nparts))))
8815 (gnus-mime-display-security handle)
8816 (when region
8817 (delete-region (point) (cdr region))
8818 (set-marker (car region) nil)
8819 (set-marker (cdr region) nil))
8820 (goto-char point)))
8822 (defun gnus-mime-security-show-details (handle)
8823 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8824 (if (not details)
8825 (gnus-message 5 "No details.")
8826 (if gnus-mime-security-show-details-inline
8827 (let ((gnus-mime-security-button-pressed
8828 (not (get-text-property (point) 'gnus-mime-details)))
8829 (gnus-mime-security-button-line-format
8830 (get-text-property (point) 'gnus-line-format))
8831 (inhibit-read-only t))
8832 (forward-char -1)
8833 (while (eq (get-text-property (point) 'gnus-line-format)
8834 gnus-mime-security-button-line-format)
8835 (forward-char -1))
8836 (forward-char)
8837 (save-restriction
8838 (narrow-to-region (point) (point))
8839 (gnus-insert-mime-security-button handle))
8840 (delete-region (point)
8841 (or (text-property-not-all
8842 (point) (point-max)
8843 'gnus-line-format
8844 gnus-mime-security-button-line-format)
8845 (point-max))))
8846 ;; Not inlined.
8847 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8848 (with-current-buffer gnus-mime-security-details-buffer
8849 (erase-buffer)
8850 t)
8851 (setq gnus-mime-security-details-buffer
8852 (gnus-get-buffer-create "*MIME Security Details*")))
8853 (with-current-buffer gnus-mime-security-details-buffer
8854 (insert details)
8855 (goto-char (point-min)))
8856 (pop-to-buffer gnus-mime-security-details-buffer)))))
8858 (defun gnus-mime-security-press-button (handle)
8859 (save-excursion
8860 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8861 (gnus-mime-security-show-details handle)
8862 (gnus-mime-security-verify-or-decrypt handle))))
8864 (defun gnus-insert-mime-security-button (handle &optional displayed)
8865 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8866 (gnus-tmp-type
8867 (concat
8868 (or (nth 2 (assoc protocol mm-verify-function-alist))
8869 (nth 2 (assoc protocol mm-decrypt-function-alist))
8870 "Unknown")
8871 (if (equal (car handle) "multipart/signed")
8872 " Signed" " Encrypted")
8873 " Part"))
8874 (gnus-tmp-info
8875 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8876 "Undecided"))
8877 (gnus-tmp-details
8878 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8879 gnus-tmp-pressed-details
8880 b e)
8881 (setq gnus-tmp-details
8882 (if gnus-tmp-details
8884 ""))
8885 (setq gnus-tmp-pressed-details
8886 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8887 (unless (bolp)
8889 (setq b (point))
8890 (gnus-eval-format
8891 gnus-mime-security-button-line-format
8892 gnus-mime-security-button-line-format-alist
8893 `(keymap ,gnus-mime-security-button-map
8894 gnus-callback gnus-mime-security-press-button
8895 gnus-line-format ,gnus-mime-security-button-line-format
8896 gnus-mime-details ,gnus-mime-security-button-pressed
8897 article-type annotation
8898 gnus-data ,handle))
8899 (setq e (if (bolp)
8900 ;; Exclude a newline.
8901 (1- (point))
8902 (point)))
8903 (when gnus-article-button-face
8904 (gnus-overlay-put (gnus-make-overlay b e nil t)
8905 'face gnus-article-button-face))
8906 (widget-convert-button
8907 'link b e
8908 :mime-handle handle
8909 :action 'gnus-widget-press-button
8910 :button-keymap gnus-mime-security-button-map
8911 :help-echo
8912 (lambda (widget)
8913 ;; Needed to properly clear the message due to a bug in
8914 ;; wid-edit (XEmacs only).
8915 (when (boundp 'help-echo-owns-message)
8916 (setq help-echo-owns-message t))
8917 (format
8918 "%S: show detail; %S: more options"
8919 (aref gnus-mouse-2 0)
8920 (aref gnus-down-mouse-3 0))))))
8922 (defun gnus-mime-display-security (handle)
8923 (save-restriction
8924 (narrow-to-region (point) (point))
8925 (unless (gnus-unbuttonized-mime-type-p (car handle))
8926 (gnus-insert-mime-security-button handle))
8927 (gnus-mime-display-part (cadr handle))
8928 (unless (bolp)
8930 (unless (gnus-unbuttonized-mime-type-p (car handle))
8931 (let ((gnus-mime-security-button-line-format
8932 gnus-mime-security-button-end-line-format))
8933 (gnus-insert-mime-security-button handle)))
8934 (mm-set-handle-multipart-parameter
8935 handle 'gnus-region (cons (point-min-marker) (point-max-marker)))
8936 (goto-char (point-max))))
8938 (defun gnus-mime-security-run-function (function)
8939 "Run FUNCTION with the security part under point."
8940 (gnus-article-check-buffer)
8941 (let ((data (get-text-property (point) 'gnus-data))
8942 buffer handle)
8943 (when (and (stringp (car-safe data))
8944 (setq buffer (mm-handle-multipart-original-buffer data))
8945 (setq handle (cadr data)))
8946 (if (bufferp (mm-handle-buffer handle))
8947 (progn
8948 (setq handle (cons buffer (copy-sequence (cdr handle))))
8949 (mm-handle-set-undisplayer handle nil))
8950 (setq handle (mm-make-handle
8951 buffer
8952 (mm-handle-multipart-ctl-parameter handle 'protocol)
8953 nil nil nil nil nil nil)))
8954 (funcall function handle))))
8956 (defun gnus-mime-security-save-part ()
8957 "Save the security part under point."
8958 (interactive)
8959 (gnus-mime-security-run-function 'mm-save-part))
8961 (defun gnus-mime-security-pipe-part ()
8962 "Pipe the security part under point to a process."
8963 (interactive)
8964 (gnus-mime-security-run-function 'mm-pipe-part))
8966 (gnus-ems-redefine)
8968 (provide 'gnus-art)
8970 (run-hooks 'gnus-art-load-hook)
8972 ;;; gnus-art.el ends here